CN212482312U

CN212482312U - Comprehensive detection tool for detecting form and position tolerance of automobile sheet metal part

Info

Publication number: CN212482312U
Application number: CN202020965764.5U
Authority: CN
Inventors: 朱亮
Original assignee: Jiangsu Sumeida Delong Auto Parts Co ltd
Current assignee: Jiangsu Sumeida Delong Auto Parts Co ltd
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2021-02-05
Anticipated expiration: 2030-06-01

Abstract

The utility model relates to an utensil is examined in synthesis for detecting car sheet metal component geometric tolerances, including base and check-up table, check-up table fixed mounting is in the middle of the top of base, the base has the detection instrument through bullet shape holder joint, base one side is fixed with the clamp support, the base is fixed with the clamp through the clamp support, the top outer peripheral face of check-up table is equipped with the locating surface, the location pinhole has been seted up at the top of check-up table, the auxiliary block is installed to one side of check-up table, the top both sides of auxiliary block are fixed with tight seat of clamp respectively through the bolt. The comprehensive detection tool is firm in positioning of the automobile sheet metal part, capable of detecting multiple groups of data errors of the automobile sheet metal part, simple in structure, convenient to operate and convenient to disassemble and assemble the workpiece. The detection tool can be directly and elastically clamped on the elastic clamping seat on the base after being used, so that the detection tool is convenient to maintain and is favorable for timely detecting the next automobile sheet metal part workpiece.

Description

Comprehensive detection tool for detecting form and position tolerance of automobile sheet metal part

Technical Field

The utility model relates to an automobile parts production technical field especially relates to an utensil is examined in synthesis for detecting car sheet metal component geometric tolerances.

Background

Form and position tolerances, also commonly referred to as geometric tolerances, include shape tolerances and position tolerances. Any part is composed of points, lines, and planes, which are called elements. The actual elements of the machined part are always in error relative to the ideal elements, including shape errors and position errors. Such errors affect the function of the mechanical product, and corresponding tolerances are specified in the design and are marked on the drawings according to specified standard symbols. Before and after the 20 th century and the 50 s, the industrialized countries have form and position tolerance standards.

The form and position tolerance comprehensive detection tool is used as a detection tool of an automobile part, and can improve the processing precision and the production efficiency of an automobile manufacturer of an automobile part enterprise. The traditional form and position tolerance checking tool is single in measured data, and all devices are relatively discrete and not easy to store.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an utensil is examined in synthesis for detecting car sheet metal component geometric tolerances to solve the problem that meets among the above-mentioned background art.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides an utensil is examined in synthesis for detecting car sheet metal component geometric tolerances, includes base and check-up platform, the check-up platform passes through bolt fixed mounting and is in the middle of the top of base, bullet shape holder is installed all around at the top of base, the base has the detection instrument through bullet shape holder joint, the base is close to one side of check-up platform is fixed with the clamp support, the base is fixed with the clamp through the clamp support, the top outer peripheral face of check-up platform be equipped with car sheet metal component assorted locating surface, the top of check-up platform seted up with car sheet metal component assorted location pinhole, the auxiliary block is installed to one side of check-up platform, the top both sides of auxiliary block are fixed with respectively through the bolt and press from both sides tight seat.

In the scheme, the elastic clamping seat is of a heart-shaped structure, and the middle part of the elastic clamping seat is provided with the elastic clamping strip.

In the above scheme, the detection tool includes first logical no-go gage, second logical no-go gage, third logical no-go gage and fourth no-go gage, first logical no-go gage is used for detecting the surface accuracy of car sheet metal component, the second logical no-go gage is used for detecting the width size of car sheet metal component, third logical no-go gage and fourth no-go gage are used for detecting the hole accuracy of car sheet metal component.

In the above scheme, the clamp comprises a clamp frame, an extension rod and a pressing block, the clamp frame is fixed to the top of the clamp support, the top of the clamp frame is rotatably connected with the extension rod, the pressing block is fixed to the lower pressing end of the extension rod, the pressing block is of a circular truncated cone-shaped structure and is made of rubber.

In the scheme, cushion blocks are fixed at four end included angles at the bottom of the base, and reference blocks are fixed at four end included angles at the top of the base.

In the above scheme, handles are respectively fixed at two side ends of the base, the handles are U-shaped, and the thickness of the handles is the same as that of the base.

Compared with the prior art, the beneficial effects of the utility model are that: the comprehensive detection tool is firm in positioning of the automobile sheet metal part, capable of detecting multiple groups of data errors of the automobile sheet metal part, simple in structure, convenient to operate and convenient to disassemble and assemble the workpiece. The various detection tools such as the go-no go gauge can be directly and elastically clamped on the elastic clamping seat on the base after being used, so that the detection tools are convenient to maintain and good in management, and the detection of the next automobile sheet metal part workpiece is facilitated.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic perspective view of the present invention;

fig. 3 is a schematic perspective view of another perspective of the present invention.

Reference numbers in the figures: 1-a base; 10-cushion block; 11-a spring clip seat; 12-a first go/no go gauge; 13-a second no-go gauge; 14-a clamp support; 15-a clamp frame; 16-an extension rod; 17-briquetting; 18-a reference block; 19-a handle; 2-a calibration stand; 21-a positioning surface; 22-dowel holes; 23-an auxiliary block; 24-a clamping seat; 25-a third no-go gauge; 26-fourth no-go gauge.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and embodiments.

As shown in figures 1 to 3, the comprehensive detection tool for detecting the form and position tolerance of the automobile sheet metal part comprises a base 1 and a verification table 2, wherein the verification table 2 is fixedly installed in the middle of the top of the base 1 through bolts. The base 1 may be made of metal, such as aluminum alloy plate, stainless steel plate, etc., or may be made of plastic plate. In order to reduce the overall weight of the comprehensive detection tool, a groove can be dug at the bottom of the base 1 or the bottom of the base can be made into a hollow structure.

The elastic clamping seat 11 is installed around the top of the base 1, the elastic clamping seat 11 is of a heart-shaped structure, an elastic clamping strip is arranged in the middle of the elastic clamping seat 11, and the elastic clamping seat 11 is made of stainless steel clamping strips in a bending mode. Bullet shape holder 11 has welded a plurality ofly around the top of base 1, can transversely weld as required, also can vertical welding, and base 1 has through 11 joints of bullet shape holder to be used for detecting whether qualified detection instrument of car sheet metal component product.

The detection tool comprises a first go-no-go gauge 12, a second go-no-go gauge 13, a third go-no-go gauge 25 and a fourth go-no-go gauge 26, wherein the first go-no-go gauge 12 is used for detecting the surface precision of the automobile sheet metal part, the second go-no-go gauge 13 is used for detecting the width size of the automobile sheet metal part, the third go-no-go gauge 25 and the fourth go-no-go gauge 26 are used for detecting the inner hole precision of the automobile sheet metal part, and the detection tool comprises a positioning pin hole 22 in the vertical direction of the automobile sheet metal part and a twisting hole.

The go-no go gauge is one of the existing measuring tools, and the go-no go gauge is divided into a go gauge and a no go gauge by two measuring tools. In actual production, if a large batch of products are measured one by using a measuring gauge (such as a vernier caliper, a dial indicator and other measuring gauges with scales), the qualified products have a measuring range, and are qualified in the measuring range, so people adopt a go gauge and a no-go gauge to measure.

Adopt to lead to no-go gage and detect whether qualified process of car sheet metal component product: the method is not easy to operate, the pitch diameter of the thread is large (the thread cannot be screwed), and the product is unqualified; the no-go gauge passes, the middle diameter is small, and the product is unqualified; the go gauge can freely rotate at any position of the thread, the no-go gauge can be screwed for one to two or three circles, and can be screwed for two circles at times, but the head of the thread is not screwed until the end face of the ring gauge is not screwed, and the detected pitch diameter of the external thread is well in a tolerance zone, so that the product is qualified.

For example, the size of the hole is checked, a stop end is made according to the upper limit of the allowable deviation of the hole diameter, a through end is made according to the lower limit of the allowable deviation of the hole diameter, and if the stop end can pass during the checking, the hole diameter is large, unqualified and incapable of being reworked; if the through end cannot pass through the hole, the hole diameter is small, and the hole diameter is not good, but the hole diameter can be qualified by reworking.

A clamp support 14 is fixed on one side of the base 1 close to the calibration table 2 through screws, and a clamp is fixed on the base 1 through the clamp support 14. Clamp including clamp frame 15, extension rod 16 and briquetting 17, clamp frame 15 passes through the screw fixation at the top of clamp support 14, and clamp frame 15's top and extension rod 16 rotate to be connected, and briquetting 17 is fixed in the end that pushes down of extension rod 16, and briquetting 17 is round platform column structure, and it adopts the rubber preparation to form, will place the car sheet metal component at calibration table 2 top through briquetting 17 and compress tightly, prevents that it from not hard up the precision that the back influence detected. The clamp is provided with a handle for pressing the pressing block 17 on the automobile sheet metal part, and the clamp generally presses the pressing block 17 on the surface of the automobile sheet metal part through the lever principle. Ordinary clamp can be purchased on the market, and the utility model provides a clamp has extension rod 16, can prolong certain length through extension rod 16, adapts to different car sheet metal component products.

Be equipped with in the top outer peripheral face of check-up table 2 with car sheet metal component assorted locating surface 21, the appearance profile of locating surface 21 is the same with the inboard shape of the car sheet metal component that awaits measuring, just locks car sheet metal component on locating surface 21 when check-up car sheet metal component, makes things convenient for the location of car sheet metal component. The top of the checking platform 2 is provided with a positioning pin hole 22 matched with the automobile sheet metal part, and the movement of the automobile sheet metal part is further limited through the positioning pin hole 22, so that the automobile sheet metal part is conveniently positioned.

An auxiliary block 23 is mounted on one side of the verification table 2, typically bolted to the base 1, and abuts against one side of the verification table 2 for detecting protruding structures of the automotive sheet metal parts. The both sides of the top of auxiliary block 23 are fixed with through the bolt respectively and press from both sides tight seat 24, and the tight seat 24 of pressing from both sides will detect the outstanding structure of car sheet metal component and press from both sides tightly, further restrict the activity of car sheet metal component, make things convenient for the location of car sheet metal component.

Preferably, cushion blocks 10 are fixed at the four corners of the bottom of the base 1, and the cushion blocks 10 are in the shape of cylinders with equal length and are used for supporting the base 1. Four end contained angle departments at the top of base 1 are fixed with reference block 18, and reference block 18 is used for the benchmark of check-up detection instrument the utility model discloses in the benchmark of the logical no-go gage that main check-up used.

Preferably, handles 19 are respectively welded and fixed at two side ends of the base 1, the handles 19 are U-shaped, the thickness of the handles 19 is the same as that of the base 1, and the two handles 19 are convenient for two persons to lift or one person to lift when the comprehensive testing tool is moved.

When the comprehensive checking fixture is used, firstly, an automobile sheet metal part workpiece is buckled with the positioning surface 21 of the checking platform 2, then the positioning pin hole 22 and the datum hole of the workpiece are completely positioned, then the length of the extension rod 16 is adjusted by the clamp on the clamp support 14, and the workpiece is clamped by the pressing block 17. And (3) sliding in the detection range of the profile tolerance of the workpiece by using various detection tools such as a go-no-go gauge and the like, or inserting the detection tools into the reference hole of the workpiece for detection, and verifying whether the workpiece is qualified. Calibrating the go-no go gauge according to the requirements of a drawing, and judging a qualified standard: the go gauge slides smoothly, and the no-go gauge can not move. After the detection is completed, the extension rod 16 on the clamp support 14 is slowly lifted, and the workpiece is taken up from the calibration stand 2 in the vertical direction.

The comprehensive detection tool is firm in positioning of the automobile sheet metal part, capable of detecting multiple groups of data errors of the automobile sheet metal part, simple in structure, convenient to operate and convenient to disassemble and assemble the workpiece. Various types of detection tools such as go-no-go gauges can be directly and elastically clamped on the elastic clamping seat 11 on the base 1 after the detection tools are used up, so that the detection tools are convenient to maintain and convenient to detect the next automobile sheet metal part workpiece in time.

The above-mentioned embodiments further explain in detail the objects, technical solutions and advantages of the present invention, and it should be understood that the above-mentioned embodiments are only the embodiments of the present invention, and are not intended to limit the scope of the present invention, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the scope of the present invention.

Claims

1. The utility model provides a synthesize and examine utensil for detecting car sheet metal component geometric tolerances which characterized in that: comprises a base (1) and a checking platform (2), wherein the checking platform (2) is fixedly arranged in the middle of the top of the base (1) through a bolt, the periphery of the top of the base (1) is provided with an elastic clamping seat (11), the base (1) is clamped with a detection tool through the elastic clamping seat (11), a clamp support (14) is fixed on one side of the base (1) close to the calibration table (2), a clamp is fixed on the base (1) through a clamp support (14), a positioning surface (21) matched with an automobile sheet metal part is arranged on the peripheral surface of the top of the checking platform (2), the top of the checking platform (2) is provided with a positioning pin hole (22) matched with the automobile sheet metal part, an auxiliary block (23) is installed on one side of the verification table (2), and clamping seats (24) are respectively fixed to two sides of the top of the auxiliary block (23) through bolts.

2. The comprehensive detection tool for detecting the form and position tolerance of the automobile sheet metal part according to claim 1, is characterized in that: the elastic clamping seat (11) is of a heart-shaped structure, and an elastic clamping strip is arranged in the middle of the elastic clamping seat (11).

3. The comprehensive detection tool for detecting the form and position tolerance of the automobile sheet metal part according to claim 1, is characterized in that: the detection tool comprises a first go-no-go gauge (12), a second go-no-go gauge (13), a third go-no-go gauge (25) and a fourth go-no-go gauge (26), the first go-no-go gauge (12) is used for detecting the surface precision of the automobile sheet metal part, the second go-no-go gauge (13) is used for detecting the width size of the automobile sheet metal part, and the third go-no-go gauge (25) and the fourth go-no-go gauge (26) are used for detecting the inner hole precision of the automobile sheet metal part.

4. The comprehensive detection tool for detecting the form and position tolerance of the automobile sheet metal part according to claim 1, is characterized in that: the clamp comprises a clamp frame (15), an extension rod (16) and a pressing block (17), the clamp frame (15) is fixed to the top of a clamp support (14), the top of the clamp frame (15) is rotatably connected with the extension rod (16), the pressing block (17) is fixed to the pressing end of the extension rod (16), the pressing block (17) is of a circular truncated cone-shaped structure, and the pressing block is made of rubber.

5. The comprehensive detection tool for detecting the form and position tolerance of the automobile sheet metal part according to claim 1, is characterized in that: cushion blocks (10) are fixed at four end included angles at the bottom of the base (1), and reference blocks (18) are fixed at four end included angles at the top of the base (1).

6. The comprehensive detection tool for detecting the form and position tolerance of the automobile sheet metal part according to claim 1, is characterized in that: handles (19) are respectively fixed at the two side ends of the base (1), the handles (19) are U-shaped, and the thickness of the handles (19) is the same as that of the base (1).