CN110722199A - K hole adjuster - Google Patents

Abstract

The invention discloses a K-hole adjuster, which comprises an indexing plate, a base, a positioning shaft, a pad, a carcass cylindrical pin, a base cylindrical pin and a screw; the carcass cylindrical pin is arranged at the lower part of the base; the positioning shaft is arranged on the base The center of the positioning shaft and the base are rotated and matched, and the positioning shaft is an eccentric shaft; the indexing plate is set on the base and symmetrically arranged on both sides of the positioning shaft; the circumference of the indexing plate is provided with an angle indexing grid, which makes the eccentricity evenly distributed Divide into several equal straight-line distances. The K-hole adjuster provided by the present invention solves the problem that a plurality of K-hole positioning pins cannot be inserted into the K-hole positioning holes caused by the deviation of the K holes of the formed product relative to the theoretical position. It realizes quick adjustment of the position of the K hole of the product, readable numerical value and precise positioning, which greatly reduces the production preparation cycle.

Description

K hole adjuster

technical field

The invention belongs to the technical field of process equipment design and manufacture, and in particular relates to a K-hole regulator.

Background technique

The proportion of sheet metal parts in the aircraft and automobile industries is quite large. The forming of such parts has reached a mature level, but the fine milling process of the edge margin needs to be further strengthened. The process equipment is mainly used to meet the requirements. . There are generally two types of holes on the product, positioning holes and K holes; the positioning holes are used for the main positioning between the product and the process equipment; the K holes are used for auxiliary positioning at other edges. It ensures the product's tire sticking rate, and is also used to check whether the product in the molding process is qualified. Since the molding process is affected by many external factors (mold, material, temperature, etc.), the K-hole of the formed product is deviated from the theoretical position. If the milling process equipment is designed according to the theoretical data, then multiple K-holes The positioning pin cannot be inserted into the positioning hole of the K hole. Therefore, how to adjust the positioning hole of the K hole and record the adjusted value is an urgent problem to be solved in the sheet metal industry.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a K-hole adjuster, which uses the cam principle to convert the adjusted linear value into a readable angle value, so as to accurately record the adjustment amount, so as to solve the above problems existing in the prior art.

The technical scheme of the present invention is:

A K-hole adjuster, which includes an indexing plate 4, a base 5, a positioning shaft 6, a pad 7, a carcass cylindrical pin 8, a base cylindrical pin 9 and a screw 10; wherein, the carcass cylindrical pin 8 is provided in the The lower part of the base 5 is used to position the K hole adjuster and the carcass 1; the positioning shaft 6 is arranged in the center of the base 5, the positioning shaft 6 is rotated and cooperated with the base 5, and the positioning shaft 6 is an eccentric shaft, and its eccentricity As the range of the adjustment amount, the inner hole of the positioning shaft 6 is a precision hole matched with the positioning pin of the K hole; the indexing plate 4 is arranged on the base 5, symmetrically arranged on both sides of the positioning shaft 6, and the screws 10 are arranged in turn. Through the holes on the pad 7 and the indexing plate 4, it is screwed with the base 5 to fix the indexing plate 4 and the base 5. The outer wall of the indexing plate 4 and the outer wall of the positioning shaft 6 have mutually matching tapered surfaces, so that When the screw 10 is screwed with the base 5, the indexing plate 4 presses the positioning shaft 6; The positioning is accurate; the circumference of the indexing plate 4 is provided with an angle indexing grid, and the eccentricity is evenly divided into several equal linear distances. The base 5 is used to support the positioning shaft 6 and the indexing plate 4 to ensure the positioning shaft 6 and the indexing. The relative position of the disk 4 is accurate.

The effects and benefits of the present invention are:

The K-hole adjuster provided by the present invention solves the problem that a plurality of K-hole positioning pins cannot be inserted into the K-hole positioning holes caused by the deviation of the K holes of the formed product relative to the theoretical position. It realizes quick adjustment of the position of the K hole of the product, readable numerical value and precise positioning, which greatly reduces the production preparation cycle.

Description of drawings

FIG. 1 is a top view of a K-hole adjuster provided in an embodiment of the present invention.

FIG. 2 is a cross-sectional view along A-A in FIG. 1 .

FIG. 3 is a cross-sectional view along B-B in FIG. 1 .

FIG. 4 is a schematic diagram of the indexing principle of the K-hole adjuster provided in the embodiment of the present invention.

FIG. 5 is a schematic diagram of using the K-hole adjuster provided in the embodiment of the present invention.

In the picture: 1 carcass; 2 positioning round sleeve; 3 positioning long round sleeve; 4 indexing plate; 5 base; 6 positioning shaft; 7 pad; 8 carcass cylinder pin; 9 base cylinder pin; 10 screw.

Detailed ways

The specific embodiments of the present invention will be further described below with reference to the accompanying drawings and technical solutions.

It should be understood that the appended drawings are not to scale, presenting a suitably simplified representation of various features illustrative of the basic principles of the invention. The specific design features of the invention disclosed herein, including, for example, the specific dimensions, orientations, locations, and profiles will be determined in part by the specific intended application and use environment.

In the accompanying figures, the same or equivalent parts (elements) are referenced with the same reference numerals.

In the description of the present invention, it should be noted that the terms "center", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right", " The orientation or positional relationship indicated by vertical, horizontal, top, bottom, inner, outer, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and The description is simplified rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

FIG. 1 is a top view of a K-hole adjuster provided in an embodiment of the present invention. FIG. 2 is a cross-sectional view along A-A in FIG. 1 . FIG. 3 is a cross-sectional view along B-B in FIG. 1 . 1 to 3 , in this embodiment, the K-hole adjuster includes an indexing plate 4 , a base 5 , a positioning shaft 6 , a pad 7 , a carcass cylindrical pin 8 , a base cylindrical pin 9 and a screw 10 . Among them, the carcass cylindrical pin 8 is arranged at the lower part of the base 5 for positioning the K hole adjuster with the carcass 1 . The positioning shaft 6 is arranged in the center of the base 5, and the positioning shaft 6 rotates and cooperates with the base 5. The positioning shaft 6 is an eccentric shaft, and its eccentricity is used as the range of the adjustment amount. The inner hole of the positioning shaft 6 is matched with the K hole positioning pin. Precision hole; the indexing plate 4 is arranged on the base 5, located on both sides of the positioning shaft 6, and is symmetrically arranged, and the screw 10 is screwed to the base 5 through the through holes on the pad 7 and the indexing plate 4 in turn, so as to divide the indexing The plate 4 is fixed with the base 5, and the outer wall of the indexing plate 4 and the outer wall of the positioning shaft 6 have conical surfaces that cooperate with each other, so that when the screw 10 is screwed with the base 5, the indexing plate 4 presses the positioning shaft 6; the base cylindrical pin 9 Interference fit with the hole on the base 5 and clearance fit with the positioning groove of the indexing plate 4 to accurately position the indexing plate 4; the circumference of the indexing plate 4 is provided with an angle indexing grid, which divides the eccentricity evenly into several Equally divided linear distance, the base 5 is used to support the positioning shaft 6 and the indexing plate 4 to ensure the relative position of the positioning shaft 6 and the indexing plate 4 is accurate.

In a specific embodiment, the inner hole of the indexing plate 4 is provided with a 120° tapered surface, which cooperates with the 120° tapered surface on the positioning shaft 6 to compress the positioning shaft 6 .

FIG. 4 is a schematic diagram of the indexing principle of the K-hole adjuster provided in the embodiment of the present invention. Referring to Fig. 4, the positioning shaft 6 is an eccentric shaft, the eccentricity e is used as the domain of the adjustment amount, and the circumference of the indexing plate 4 is provided with an angle indexing grid, and the indexing rule is to divide the eccentricity e into several parts evenly along the X direction. Equally divided straight-line distances, thus forming the spread angle.

FIG. 5 is a schematic diagram of using the K-hole adjuster provided in the embodiment of the present invention. Referring to Figure 5, the carcass 1 is a typical vacuum milling fixture, and its profile is obtained according to the theoretical profile of the product digital model; it has a sealing groove and a suction groove, and cooperates with a vacuum generating device to generate negative pressure to adsorb the product on the carcass 1. The positioning round sleeve 2 and the positioning long round sleeve 3 are used for product positioning and are inlaid on the carcass 1, so that the connecting direction of the two positioning holes can be adjusted. When in use, a plurality of K-hole adjusters are embedded on the carcass 1 according to the normal direction of the curvature of the carcass 1 . The positioning shaft 6 rotates and cooperates with the base 5; the inner hole of the positioning shaft 6 and the eccentricity e of the positioning shaft diameter are used as the range of the adjustment amount, and the inner hole of the positioning shaft 6 is used to cooperate with the positioning pin of the K hole to assist in positioning the product, so as to Guaranteed product sticking rate. The screw 10 and the pad 7 are screwed to the base 5 through the through hole on the indexing plate 4, and the positioning shaft 6 is locked after adjusting the position of the K hole.

The descriptions presented above of the exemplary embodiments are intended only to illustrate technical solutions of the present invention, and are not intended to be exhaustive, nor to limit the invention to the precise forms described. Obviously, many modifications and variations are possible for those of ordinary skill in the art in light of the above teachings. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and their practical applications, to thereby facilitate others skilled in the art to understand, implement and utilize the various exemplary embodiments of the invention and various alternatives thereof and modified form. The scope of the present invention is intended to be limited by the appended claims and their equivalents.

Claims (1)

1. A K hole regulator is characterized by comprising an index plate (4), a base (5), a positioning shaft (6), a pad (7), a tire body cylindrical pin (8), a base cylindrical pin (9) and a screw (10); wherein,

the carcass cylindrical pin (8) is arranged at the lower part of the base (5) and is used for positioning the K hole regulator and the carcass (1);

the positioning shaft (6) is arranged in the center of the base (5), the positioning shaft (6) is in running fit with the base (5), the positioning shaft (6) is an eccentric shaft, the eccentricity of the positioning shaft is used as the domain of the adjustment quantity, and the inner hole of the positioning shaft (6) is a precision hole matched with the K-hole positioning pin;

the dividing plate (4) is arranged on the base (5) and symmetrically arranged on two sides of the positioning shaft (6), the screws (10) are in threaded connection with the base (5) sequentially through the pads (7) and the through holes in the dividing plate (4) to fix the dividing plate (4) and the base (5), the outer wall of the dividing plate (4) and the outer wall of the positioning shaft (6) are provided with conical surfaces which are matched with each other, and therefore when the screws (10) are in threaded connection with the base (5), the dividing plate (4) compresses the positioning shaft (6); the base cylindrical pin (9) is in interference fit with the hole on the base (5) and is in clearance fit with the positioning groove of the indexing disc (4) so as to accurately position the indexing disc (4);

the circumference of the dividing plate (4) is provided with angle dividing grids which evenly divide the eccentric quantity into a plurality of equally divided linear distances, and the base (5) is used for supporting the positioning shaft (6) and the dividing plate (4) so as to ensure the accuracy of the relative position of the positioning shaft (6) and the dividing plate (4).

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