Testing device for welding fixture of production line

Abstract

The utility model discloses a testing device for a production line welding fixture, which relates to the technical field of automobile fixture design and comprises a base, welding fixture bodies are symmetrically arranged at the top of the base, and a horizontal testing assembly is arranged at the top of the base and located between the two welding fixture bodies. A feeding mechanism is arranged at the top of the base and located on one side of each of the two welding clamp bodies, the horizontal testing assembly comprises a guide rail, the guide rail is fixedly installed at the top of the base, and an installation groove is formed in the top of the guide rail. According to the utility model, the first motor drives the screw rod to realize accurate movement, the surface of a welding fixture main body part placing disc is synchronously measured by matching with the double dial indicators at the two ends of the bracket, numerical value differences can be visually compared, whether the levelness of the turned fixture reaches the standard or not can be quickly and accurately judged, errors caused by manual detection are avoided, and the working efficiency is improved. And the reliability of test results is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile fixture design, specifically a testing device for production line welding fixture. BACKGROUND

[0002] In the automobile manufacturing industry, welding fixture as the core guarantee of the body welding precision, its structure design rationality, overturning level precision and clamping reliability directly determine the body assembly quality and production efficiency. The current automobile model iteration speed accelerates, and the parallel production of multiple platforms and multiple configuration models puts forward higher requirements for the design diversity and adaptability of welding fixture, and the welding fixture needs to be tested by a testing device.

[0003] The existing testing device is inconvenient for accurate and efficient detection of the horizontal precision of the welding fixture after overturning, and it mainly relies on manual single measurement tool point-by-point sampling, which is not only tedious and time-consuming, but also prone to measurement result distortion due to manual operation deviation, and it is difficult to quickly and intuitively determine the horizontal consistency of the fixture after overturning.

[0004] Therefore, the present application provides a testing device for production line welding fixture, which can eliminate the drawbacks of the existing device. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a testing device for production line welding fixture to solve the problem of difficult and intuitive determination of the horizontal consistency of the fixture after overturning in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A testing device for production line welding fixture, comprising a base, the top of the base is symmetrically provided with a welding fixture body, the top of the base and between the two welding fixture bodies is provided with a horizontal testing assembly, and the top of the base and on one side of the two welding fixture bodies are both provided with a feeding mechanism.

[0008] The horizontal testing assembly comprises a guide rail, the guide rail is fixedly installed on the top of the base, the top of the guide rail is provided with a mounting groove, the inside of the mounting groove is rotatably installed with a lead screw through a bearing, one end of the guide rail is fixedly installed with a first motor, the lead screw is driven by the first motor, the outside of the lead screw is threadedly connected with a first sliding block, the top of the first sliding block is fixedly installed with a bracket, and the both ends of the bracket are both provided with a dial indicator.

[0009] On the basis of the above technical scheme, the utility model also provides the following optional technical scheme:

[0010] In an optional scheme, the feeding mechanism comprises a fixed plate fixedly installed on the top of the base, a mounting plate fixedly installed on one side of the fixed plate, and a second motor fixedly installed on one side of the mounting plate, with the output end of the second motor penetrating through the mounting plate and connected with a rotating rod.

[0011] In an optional scheme, a U-shaped groove is formed on the other side of the mounting plate, and a connecting rod is slidably installed in the U-shaped groove, with the connecting rod and the sliding groove being in sliding connection.

[0012] In an optional scheme, a slide rail is fixedly installed on the other side of the mounting plate below the U-shaped groove, and a second sliding block is slidably installed on the outside of the slide rail.

[0013] In an optional scheme, a third sliding block is fixedly installed on one side of the second sliding block, and a sliding rod is rotatably installed on one end of the connecting rod, with the sliding rod and the third sliding block being in sliding connection.

[0014] In an optional scheme, a negative pressure suction disc is arranged at the bottom end of the sliding rod.

[0015] In an optional scheme, a standard mold plate is fixedly installed on one side of the fixed plate below the mounting plate by means of bolts.

[0016] In an optional scheme, the standard mold plate is matched with the welding fixture body, and the standard mold plate is used for placing a standard welding part.

[0017] Compared with the prior art, the utility model has the advantages as follows:

[0018] 1. The horizontal testing assembly of the utility model realizes precise movement through the first motor driving the lead screw, and the double dial gauges at the two ends of the support are used for synchronously measuring the surface of the welding fixture body part placing disc, so that the numerical difference can be intuitively compared, the horizontal degree of the fixture after overturning can be quickly and accurately judged, the error of manual detection is avoided, and the reliability of the testing result is ensured.

[0019] 2. The feeding mechanism of the utility model can not only accurately transfer the parts in the standard mold plate through the linkage structure, complete the adaptability detection of the parts and the welding fixture body placing disc, but also can verify the clamping reliability of the fixture by means of the tension sensor between the sliding rod and the negative pressure suction disc, so that the equipment investment and manual intervention are reduced, and the testing efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole structure schematic view of the utility model.

[0021] Figure 2 It is a side view structure schematic view of the utility model.

[0022] Figure 3 It is horizontal test assembly structure schematic view of the utility model.

[0023] Figure 4 It is horizontal test assembly structure schematic view of the utility model.

[0024] Mark annotation: 1, base; 2, welding fixture main body; 3, horizontal test assembly; 31, guide rail; 32, installation groove; 33, screw rod; 34, first motor; 35, first sliding block; 36, support; 37, dial gauge; 4, feeding mechanism; 41, fixed plate; 42, mounting plate; 43, second motor; 44, rotating rod; 45, U-shaped groove; 46, connecting rod; 47, sliding groove; 48, sliding rail; 49, second sliding block; 410, third sliding block; 411, sliding rod; 412, negative pressure suction disc; 413, standard mold plate. DETAILED DESCRIPTION

[0025] In order to make the utility model purposes, technical scheme and advantages more clearly, the following is combined with the drawings and examples, and the utility model is further described in detail.

[0026] In one embodiment, as shown in Figures 1-4 A test device for welding fixture of production line, including base 1, the top of the base 1 is symmetrically provided with welding fixture main body 2, the top of the base 1 and between two welding fixture main body 2 is provided with horizontal test assembly 3, the top of the base 1 and at one side of two welding fixture main body 2 are provided with feeding mechanism 4;The horizontal test assembly 3 includes guide rail 31, the guide rail 31 is fixedly installed on the top of base 1, the top of the guide rail 31 is provided with installation groove 32, the inside of the installation groove 32 is rotatably installed with screw rod 33 by bearing, one end of the guide rail 31 is fixedly installed with first motor 34, the screw rod 33 is driven by first motor 34, the outside of the screw rod 33 is connected with first sliding block 35, the top of the first sliding block 35 is fixedly installed with support 36, the both ends of the support 36 are provided with dial gauge 37, the outside of the screw rod 33 is provided with concertina dust cover, and the concertina dust cover is located in the inside of installation groove 32.

[0027] In the embodiment, the horizontal test assembly 3 drives the screw rod 33 by first motor 34, drives first sliding block 35 to move along guide rail 31, makes the dial gauge 37 of both ends of support 36 accurately close to the part placing disc of welding fixture main body 2;Double dial gauge 37 synchronously measures the difference of intuitive comparison value, quickly determines the horizontal precision of welding fixture main body 2 after overturning, guarantees the accuracy and reliability of test result, the concertina dust cover effectively protects the screw rod 33, avoids dust and impurities to adhere to the screw rod 33, prevents the screw rod 33 from being stuck.

[0028] In one embodiment, as shown in Figure 1 and Figure 3 The feeding mechanism 4 includes a fixed plate 41 fixedly installed on the top of the base 1, one side of the fixed plate 41 is fixedly installed with a mounting plate 42, one side of the mounting plate 42 is fixedly installed with a second motor 43, the output end of the second motor 43 penetrates through the mounting plate 42 and is connected with a rotating rod 44, the other side of the mounting plate 42 is provided with a U-shaped groove 45, the inside of the U-shaped groove 45 is slidably installed with a connecting rod 46, one side of the rotating rod 44 is provided with a sliding groove 47, the connecting rod 46 and the sliding groove 47 are slidably installed, the other side of the mounting plate 42 and below the U-shaped groove 45 is fixedly installed with a sliding rail 48, the outside of the sliding rail 48 is slidably installed with a second sliding block 49, one side of the second sliding block 49 is fixedly installed with a third sliding block 410, one end of the connecting rod 46 is rotatably installed with a sliding rod 411, and the sliding rod 411 and the third sliding block 410 are slidably installed, the bottom end of the sliding rod 411 is provided with a negative pressure suction cup 412, the feeding mechanism 4 drives the negative pressure suction cup 412 to complete the accurate transfer of the parts in the standard mold plate 413 through the linkage of the second motor 43, the rotating rod 44 and other components, which not only realizes the adaptability detection of the parts and the placement disc of the welding fixture body 2, but also verifies the clamping reliability through the tension sensor.

[0029] In one embodiment, as shown in Figure 1 and Figure 3 One side of the fixed plate 41 and below the mounting plate 42 is fixedly installed with a standard mold plate 413 through bolts, the standard mold plate 413 is adapted to the welding fixture body 2, the standard mold plate 413 is used for placing standard parts to be welded, the standard mold plate 413 is detachably connected with the fixed plate 41 through bolts, and is accurately adapted to the welding fixture body 2, which not only provides a standard placement reference for the standard parts to be welded, avoids the influence of part placement deviation on test results, but also can quickly replace the corresponding mold plate according to welding fixture bodies 2 of different specifications, and improves the adaptability of the device to different models of welding fixtures.

[0030] The above embodiment discloses a testing device for welding fixture of production line, wherein the automobile standard parts to be welded are placed in the standard mold plate 413, the second motor 43 of the feeding mechanism 4 is started, the rotating rod 44 is driven to rotate, the connecting rod 46 is driven to slide along the U-shaped groove 45 through the sliding groove 47 of the rotating rod 44, and then the sliding rod 411 and the third sliding block 410 are driven to move along the sliding rail 48, so that the negative pressure suction cup 412 adsorbs the standard parts and transfers them to the part placement disc of the welding fixture body 2; if the standard parts cannot be placed in the placement disc, it is directly determined that the adaptability of the welding fixture body 2 is unqualified;

[0031] After the clamping assembly of the welding fixture body 2 clamps the standard part, the part placing disc is flipped, and the first motor 34 of the horizontal test assembly 3 is started to drive the lead screw 33 to rotate, so that the first sliding block 35 moves along the guide rail 31 to drive the dial gauges 37 at both ends of the bracket 36 to be close to the surface of the part placing disc; if the measured values of the two dial gauges 37 are inconsistent, it is determined that the flipping level of the welding fixture body 2 is unqualified, and if it is qualified, the part placing disc is reset by the welding fixture body 2;

[0032] The feeding mechanism 4 drives the negative pressure suction disc 412 to adsorb the part again, the tension between the sliding rod 411 and the negative pressure suction disc 412 is detected by the tension sensor, if the tension reaches the specified value but the part still cannot be taken off, it is determined that the clamping performance of the welding fixture body 2 is qualified; then the qualified welding fixture body 2 is removed, and the welding fixture body 2 to be tested is replaced.

[0033] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A testing device for welding fixtures in a production line, comprising a base (1), welding fixture bodies (2) symmetrically arranged on the top of the base (1), a horizontal testing component (3) arranged on the top of the base (1) and between the two welding fixture bodies (2), and a feeding mechanism (4) arranged on the top of the base (1) and on one side of the two welding fixture bodies (2). Its features are, The horizontal testing component (3) includes a guide rail (31), which is fixedly installed on the top of the base (1). The top of the guide rail (31) is provided with a mounting groove (32). A lead screw (33) is rotatably installed inside the mounting groove (32) via a bearing. A first motor (34) is fixedly installed at one end of the guide rail (31). The lead screw (33) is driven by the first motor (34). A first slider (35) is threadedly connected to the outside of the lead screw (33). A bracket (36) is fixedly installed on the top of the first slider (35). A dial indicator (37) is provided at both ends of the bracket (36). An accordion-style dust cover is provided on the outside of the lead screw (33), and the accordion-style dust cover is located inside the mounting groove (32).

2. The testing device for welding fixtures on a production line according to claim 1, characterized in that, The feeding mechanism (4) includes a fixed plate (41), which is fixedly installed on the top of the base (1). A mounting plate (42) is fixedly installed on one side of the fixed plate (41), and a second motor (43) is fixedly installed on one side of the mounting plate (42). The output end of the second motor (43) passes through the mounting plate (42) and is connected to a rotating rod (44).

3. A testing device for welding fixtures on a production line according to claim 2, characterized in that, A U-shaped groove (45) is provided on the other side of the mounting plate (42), and a connecting rod (46) is slidably installed inside the U-shaped groove (45). A sliding groove (47) is provided on one side of the rotating rod (44), and the connecting rod (46) and the sliding groove (47) are slidably installed.

4. A testing device for welding fixtures on a production line according to claim 3, characterized in that, A slide rail (48) is fixedly installed on the other side of the mounting plate (42) and below the U-shaped groove (45), and a second slider (49) is slidably installed on the outside of the slide rail (48).

5. A testing device for welding fixtures on a production line according to claim 4, characterized in that, A third slider (410) is fixedly installed on one side of the second slider (49), and a slide rod (411) is rotatably installed on one end of the connecting rod (46), and the slide rod (411) and the third slider (410) are slidably installed together.

6. A testing device for welding fixtures on a production line according to claim 5, characterized in that, A negative pressure suction cup (412) is provided at the bottom end of the slide rod (411), and a tension sensor is provided between the slide rod (411) and the negative pressure suction cup (412).

7. A testing device for welding fixtures on a production line according to claim 2, characterized in that, A standard mold plate (413) is fixedly installed on one side of the fixing plate (41) and below the mounting plate (42) by bolts.

8. A testing device for welding fixtures on a production line according to claim 7, characterized in that, The standard mold plate (413) is adapted to the welding fixture body (2), and the standard mold plate (413) is used to place standard parts to be welded.

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