Adjustable positioning block device for automobile inspection fixtures

Abstract

This field belongs to the field of automobile inspection fixtures, and specifically relates to automobile sheet metal inspection fixtures, including a base plate, a cushion seat, a mounting seat and a positioning unit, wherein the cushion seat is fixed on the base plate, the mounting seat is fixed on the cushion seat, and the positioning unit includes a positioning block base, an adjusting bolt, a positioning block, a pressure arm, an elastic member and a pressure arm mounting seat, wherein the positioning block base is fixed on the cushion seat, the adjusting bolt is threadedly connected to the positioning block base, and the positioning block is fixed on the adjusting bolt; the pressure arm mounting seat is fixed on the positioning block base, the pressure arm is slidably arranged on the pressure arm mounting seat, and an elastic member is arranged between the pressure arm and the pressure arm mounting seat. Compared with the traditional automobile inspection fixture positioning mechanism, this device has a good adjustment effect, and can be adjusted and adapted to the shape and state of the sheet metal to be tested, effectively overcoming the technical bias of the industry and effectively improving the accuracy of detection.

Description

Technical Field

[0001] The invention belongs to the field of automobile inspection tools, and in particular to the field of automobile sheet metal inspection tools. Background Art

[0002] Sheet metal is a comprehensive cold processing technology for thin metal plates (usually less than 6mm), including shearing, punching / cutting / combining, folding, welding, riveting, splicing, forming (such as car body), etc. Its most notable feature is that the thickness of the same part is consistent. Products processed by sheet metal technology are called sheet metal parts. The sheet metal parts referred to in different industries are generally different, and are mostly used for assembly. Automotive sheet metal parts are an important part of automotive parts, and their manufacturing accuracy is directly related to the quality of the car.

[0003] In the actual production testing process, it is usually adopted Figure 1 The positioning device shown in the figure includes a bottom plate, a cushion seat and a mounting seat connected in sequence from bottom to top, and the upper end of the mounting seat is a positioning block; correspondingly, it also includes a quick clamp mounting seat and a quick clamp connected in sequence from bottom to top, and the quick clamp is provided with a quick clamp head matching the positioning block. After the sheet metal is positioned, it is inspected by a detection mechanism.

[0004] However, after a long period of production testing, a strange problem was discovered when the sheet metal parts fixed by the positioning device were inspected by the inspection mechanism: when other parts were qualified, the product qualification rate was not high, and products produced from sheet metal parts that passed the inspection were often unqualified.

[0005] Therefore, as a result of long-term experiments with controlled variables, we discovered the core reason that has been overlooked in the industry: it is not the accuracy of the sheet metal that is problematic, but the accuracy of the positioning device of the automotive inspection fixture itself is questionable. Summary of the invention

[0006] The object of the present invention is to provide an adjustable positioning block device for an automobile inspection fixture to solve the problem of the measurement accuracy of the inspection fixture.

[0007] In order to achieve the above-mentioned purpose, the present invention provides an adjustable positioning block device for an automobile inspection fixture, comprising a base plate, a cushion seat, a mounting seat and a positioning unit, wherein the cushion seat is fixed on the base plate, the mounting seat is fixed on the cushion seat, and the positioning unit comprises a positioning block base, an adjusting bolt, a positioning block, a pressure arm, an elastic member and a pressure arm mounting seat, the positioning block base is fixed on the cushion seat, the adjusting bolt is threadedly connected to the positioning block base, and the positioning block is fixed on the adjusting bolt; the pressure arm mounting seat is fixed on the positioning block base, the pressure arm is slidably arranged on the pressure arm mounting seat, and an elastic member is provided between the pressure arm and the pressure arm mounting seat.

[0008] After rigorous experiments and innovative thinking, we found that when other parts are qualified, the qualified rate of products is not high. There are often unqualified products produced by qualified sheet metal parts. The reason is: Figure 1 As shown, during the inspection of a normal sheet metal, its right end is clamped and positioned; and since the positions of the positioning block and the positioning base are fixed, once the clamping accuracy of the sheet metal deviates, the sheet metal clamped between the positioning block and the positioning reference will be forcibly deformed, which will cause the position of the inspected sheet metal to shift, and ultimately make the inspection result of the sheet metal that does not meet the requirements meet the requirements.

[0009] The principle of the present invention is that when performing testing, the adjusting bolt is adjusted according to the shape of the sheet metal to be tested, and then the position between the positioning block and the pressing block is adjusted to adapt to the shape of the sheet metal, ensuring that the part of the sheet metal to be tested always maintains the correct position and shape, thereby ensuring that the test result is always accurate.

[0010] The beneficial effects of the present invention are as follows: compared with the traditional automobile inspection fixture positioning mechanism, the present device has a good adjustment effect, can be adjusted and adapted to the shape and state of the sheet metal to be tested, discovers technical problems that are difficult to find in the industry, effectively overcomes the industry's technical prejudice, and effectively solves the problem that when other parts are qualified, the product qualification rate is not high, and the products produced from the qualified sheet metal are often unqualified.

[0011] Furthermore, a fastening bolt for fixing the adjusting bolt is included. Compared with fixing only by the adjusting bolt's own thread, the additional fastening bolt makes the positioning block more stably fixed and the measuring effect more accurate.

[0012] Furthermore, the pressing arm is in a 7-shape. Compared with other shapes such as a cross shape, a T-shape, etc., the whole is more beautiful and more material-saving.

[0013] Furthermore, the elastic member is a stainless steel spring. Compared with other elastic members, the stainless steel spring has better elasticity and longer service life.

[0014] Furthermore, the cushion seat can be detachably fixed on the bottom plate. After a period of use, the bottom plate can be replaced to avoid the influence of the wear of the bottom plate on the accuracy.

[0015] Furthermore, the positioning block base is detachably fixed on the padding seat, and a new padding seat can be replaced as needed to meet the requirements of different product models. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a traditional automobile inspection fixture positioning device.

[0017] Figure 2 The figure is a structural schematic diagram of an adjustable positioning block device for an automobile inspection fixture. DETAILED DESCRIPTION

[0018] The following is further described in detail through specific implementation methods:

[0019] In the drawings of the specification Figure 1 The reference numerals include: base plate 1, raising seat 2, mounting seat 3, positioning 4, quick clamp head 5, quick clamp 6, quick clamp mounting seat 7, sheet metal 8.

[0020] In the drawings of the specification Figure 2 The reference numerals include: base plate 1, cushion seat 2, positioning block base 3, adjusting bolt 4, positioning block 5, pressure arm 6, spring 7, pressure arm mounting seat 8, fastening bolt 9, sheet metal 10.

[0021] like Figure 2 As shown, the adjustable device of the automobile inspection fixture positioning block 5 in this embodiment comprises, from bottom to top, a bottom plate 1, a mounting seat, a positioning block base 3 and a positioning unit. The bottom plate 1, the mounting seat and the positioning block base 3 are all fixedly connected by bolts, and are all detachable connections, which can be easily replaced and repaired.

[0022] The positioning unit includes a positioning block base 3, an adjusting bolt 4, a positioning block 5, a pressure arm 6, an elastic member and a pressure arm mounting seat 8. The positioning block base 3 is fixed on the pad 2. The positioning block base 3 is cylindrical as a whole, and a screw is provided on it. Similarly, the lower end of the positioning block 5 is a screw. The positioning block 5 and the positioning block base 3 are fixedly connected by the adjusting bolt 4, and the position of the positioning block 5 can be conveniently adjusted by rotating the adjusting bolt 4. Of course, it is also possible to directly weld the positioning block 5 to the adjusting bolt 4.

[0023] In addition, a fastening bolt 9 is provided between the positioning block base 3 and the conditional bolt. Compared with fixing only by adjusting the thread of the bolt 4, the additional fastening bolt 9 makes the positioning block 5 more stably fixed and the measurement effect more accurate.

[0024] The pressure arm 6 is matched with the positioning block 5, and the pressure arm 6 is in the shape of 7. The left end of the pressure arm 6 matches the positioning block 5, and the lower end is a connecting rod. The left end of the pressure arm mounting seat 8 is fixed to the positioning block base 3 by bolts, and a through hole is provided in the middle of the other end. The connecting rod is smaller than the through hole and can slide in the through hole, and a stainless steel spring is provided between the pressure arm 6 and the pressure arm 6 base. The pressure arm mounting seat 8 is fixed on the positioning block base 3, and the pressure arm 6 is slidably arranged on the pressure arm mounting seat 8, and an elastic member is provided between the pressure arm 6 and the pressure arm mounting seat 8.

[0025] During testing, the adjusting bolt 4 is adjusted according to the shape of the sheet metal to be tested, and then the position between the positioning block 5 and the pressing block is adjusted to adapt to the shape of the sheet metal, ensuring that the part of the sheet metal to be tested always maintains the correct position and shape, thereby ensuring that the test result is always accurate.

[0026] Compared with the traditional automobile inspection fixture positioning mechanism, the device has a good adjustment function, can be adjusted to adapt to the shape and state of the sheet metal to be tested, discovered technical problems that are difficult to find in the industry, effectively overcome the industry's technical prejudice, and effectively solved the problem that when other parts are qualified, the product qualification rate is not high, and the products produced from the qualified sheet metal 10 are often unqualified.

[0027] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An adjustable positioning block device for automobile inspection fixtures, comprising a base plate, a cushion seat, a mounting seat and a positioning unit, wherein the cushion seat is fixed on the base plate, and the mounting seat is fixed on the cushion seat, characterized in that: The positioning unit includes a positioning block base, an adjusting bolt, a positioning block, a pressure arm, an elastic member and a pressure arm mounting seat, the positioning block base is fixed on the pad, the adjusting bolt is threadedly connected to the positioning block base, and the positioning block is fixed on the adjusting bolt; the pressure arm mounting seat is fixed on the positioning block base, the pressure arm is slidably arranged on the pressure arm mounting seat, and an elastic member is provided between the pressure arm and the pressure arm mounting seat, and also includes a fastening bolt for fixing the adjusting bolt; the positioning block and the positioning block base are fixedly connected by an adjusting bolt; the pressure arm is in a 7-shape, the pressure arm cooperates with the positioning block, the left end of the pressure arm matches the positioning block, and the lower end of the pressure arm is a connecting rod; the left end of the pressure arm mounting seat is fixed to the positioning block base by bolts, and a through hole is provided in the middle of the other end, and the connecting rod can slide in the through hole.

2. The adjustable positioning block device for automobile inspection fixture according to claim 1 is characterized in that: The elastic member is a stainless steel spring.

3. The adjustable positioning block device for automobile inspection fixture according to claim 1 is characterized in that: The raising seat is detachably fixed on the bottom plate.

4. The adjustable positioning block device for automobile inspection fixture according to claim 3 is characterized in that: The positioning block base is detachably fixed on the padding seat.

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