Switchable welding positioning clamp

Abstract

The utility model relates to the field of automobile production welding, in particular to a switchable welding positioning clamp. The technical problems that in the automobile production welding process, due to the fact that most of the welding fixtures are only suitable for automobile body welding of one automobile type, corresponding automobile type welding fixtures need to be added when new automobile types are integrated, the input cost is increased, meanwhile, factory layout and logistics transportation are not facilitated, the occupied area is large, and the later maintenance cost is correspondingly increased are solved. According to the technical scheme, the switchable welding positioning clamp comprises a pressing arm; the device further comprises a pin seat, an air cylinder, a guide assembly and an angle seat. Corresponding rhombic pins or round pins are selected to be installed on the pin seats, corresponding frame shells to be machined are installed on the positioning clamp to be subjected to positioning welding, and meanwhile the first connecting pieces, the supporting blocks and the third connecting pieces which correspond to different directions and shapes are pushed to conduct positioning welding on the frame shells to be machined. And the frame shells of different specifications and shapes can be conveniently operated at the same time, and the operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of automobile production welding, in particular to a switchable welding positioning fixture. Background Art

[0002] As China's automobile industry matures, major automobile companies are paying more and more attention to and investing more in research and development. The number of new models developed by companies is also increasing. When developing new models, it is necessary to produce and weld on the fixture platform. However, the existing welding positioning fixtures can only be used for body welding of one type of car during use. When integrating new models, it is necessary to add corresponding model welding fixtures, which increases the investment cost. After the new model welding fixtures are introduced into the factory, it is not conducive to the factory layout and logistics transportation, resulting in a large footprint and a corresponding increase in subsequent maintenance costs. Utility Model Content

[0003] In order to overcome the problem in the process of automobile production welding that most of the body welding can only be applied to one type of vehicle, when integrating new models, it is necessary to add corresponding model welding fixtures, thereby increasing the investment cost. After the new model welding fixtures enter the factory, it is not conducive to the factory layout and logistics transportation, resulting in a large footprint and the subsequent maintenance cost will also increase accordingly.

[0004] The technical solution of the utility model is: a switchable welding positioning fixture, including a pressure arm; also including a connecting plate, a pin seat, a first connecting piece, a second connecting piece, a bracket, a rhombus pin, a support block, a round pin, a third connecting piece, a proximity switch, a cylinder, a hinge pin, a guide assembly, and an angle seat. A connecting plate is arranged on the left side of the bottom end of the pressure arm, the top end of the pressure arm is bolted to the left side of the pin seat to provide a first connecting piece, one side of the first connecting piece is provided with a second connecting piece, the other side of the first connecting piece is provided with a bracket, the top end of the second connecting piece is movably connected with a rhombus pin, and the top end of the left side of the pressure arm is provided with a support block.

[0005] Preferably, the pin seat has a first gasket, a limit block and a second gasket, the first gasket is arranged between the pin seat and the pressure arm, the limit block is arranged on the left side wall of the pressure arm, and the second gasket is arranged between the pressure arm and the support block.

[0006] Preferably, the top end of the second connecting member is movably connected with a round pin, and the diamond pin and the round pin can be replaced with each other, the bottom end of the pressure arm is connected to the third connecting member through a limit block, a proximity switch is provided at the top of the bracket, the bottom end of the rear side of the pressure arm is connected to a cylinder, and a hinge pin is connected to the right side wall of the third connecting member.

[0007] Preferably, the cylinder is provided with an oil-free bushing, a cotter pin and a metal washer; an oil-free bushing is arranged at the connection between the cylinder and the connecting plate, an oil-free bushing is symmetrically arranged on the outer center of the hinge pin, a cotter pin is arranged at the connection between the third connecting piece and the cylinder, and a metal washer is symmetrically arranged on the outer center of the cotter pin.

[0008] Preferably, the rear end of the pressure arm is movably connected with a guide assembly, and an angle seat is movably connected between the pressure arm and the third connecting piece. The guide assembly includes a guide rod, a fourth connecting piece, a fifth connecting piece, and a tightening plug-in. The rear end of the pressure arm is movably connected with the guide rod, and the fourth connecting piece is movably connected on the connecting plate.

[0009] Preferably, a fifth connecting member is provided at the top of the fourth connecting member, a tightening plug is bolted between the fourth connecting member and the fifth connecting member, a sixth connecting member is bolted at the front end of the angle seat, a support block is provided at the top of the sixth connecting member, and a second gasket is provided between the support block and the angle seat.

[0010] Beneficial effects of the utility model:

[0011] By selecting the corresponding diamond pin or round pin, installing it on the pin seat, installing the corresponding processed frame shell on the positioning fixture, positioning and welding it, and pushing the first connecting piece, the supporting block and the third connecting piece of corresponding different orientations and shapes at the same time, it is convenient to simultaneously operate the frame shells of different specifications and shapes, so as to improve the working efficiency;

[0012] Through the control of the cylinder, the first connecting member, the second connecting member, the support block and the third connecting member are pushed to the lower end of the frame shell to support them so that they can be placed stably during welding to avoid frame displacement and welding errors, which affect the appearance and increase the cost. The provision of the guide rod and the angle seat further improves the stability of the positioning fixture when clamping, making it easier to use the fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 What is shown is a schematic diagram of the overall three-dimensional structure of the switchable welding positioning fixture of the utility model;

[0014] Figure 2 What is shown is a schematic diagram of a first three-dimensional structure of a switchable welding positioning fixture of the utility model;

[0015] Figure 3 The second three-dimensional structure schematic diagram of the switchable welding positioning fixture of the utility model is shown;

[0016] Figure 4 The third three-dimensional structure schematic diagram of the switchable welding positioning fixture of the utility model is shown;

[0017] Figure 5The fourth three-dimensional structure schematic diagram of the switchable welding positioning fixture of the utility model is shown;

[0018] Figure 6 What is shown is a schematic diagram of the three-dimensional structure of the switchable welding positioning fixture guide assembly of the utility model.

[0019] Explanation of the accompanying drawings: 1. pressure arm; 2. connecting plate; 3. pin seat; 301. first gasket; 302. limit block; 303. second gasket; 4. first connecting member; 5. second connecting member; 6. bracket; 7. diamond pin; 8. support block; 9. round pin; 10. third connecting member; 11. proximity switch; 12. cylinder; 1201. oil-free bushing; 1202. cotter pin; 1203. metal washer; 13. hinge pin; 14. guide assembly; 1401. guide rod; 1402. fourth connecting member; 1403. fifth connecting member; 1404. tightening plug-in; 15. angle seat; 1501. sixth connecting member. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] See also Figure 1 The utility model provides an embodiment: a switchable welding positioning fixture, including a pressure arm 1; also including a connecting plate 2, a pin seat 3, a first connecting member 4, a second connecting member 5, a bracket 6, a rhombus pin 7, a support block 8, a round pin 9, a third connecting member 10, a proximity switch 11, a cylinder 12, a hinge pin 13, a guide assembly 14, and an angle seat 15. A connecting plate 2 is arranged on the left side of the bottom end of the pressure arm 1, and the top end of the pressure arm 1 is bolted with the pin seat 3. Select the corresponding rhombus pin 7 or round pin 9 and install it on the pin seat 3, install the corresponding processed frame shell on the positioning fixture, and perform positioning welding on it.

[0022] See also Figure 2-4In this embodiment, a first connecting member 4 is provided on the left side of the pin seat 3, a second connecting member 5 is provided on one side of the first connecting member 4, a bracket 6 is provided on the other side of the first connecting member 4, a rhombus pin 7 is movably connected to the top of the second connecting member 5, and a support block 8 is provided on the top of the left side of the pressure arm 1; a first gasket 301, a limit block 302, and a second gasket 303 are provided on the pin seat 3, a first gasket 301 is provided between the pin seat 3 and the pressure arm 1, a limit block 302 is provided on the left side wall of the pressure arm 1, and a second gasket 303 is provided between the pressure arm 1 and the support block 8; a round pin 9 is movably connected to the top of the second connecting member 5, and the rhombus pin 7 and the round pin 9 can be replaced with each other, the bottom end of the pressure arm 1 is connected to the third connecting member 10 through the limit block 302, and a proximity switch 1 is provided on the top of the bracket 6. 1, a cylinder 12 is connected to the bottom end of the rear side of the pressure arm 1, and a hinge pin 13 is connected to the right side wall of the third connecting member 10; an oil-free bushing 1201, a cotter pin 1202, and a metal washer 1203 are arranged on the cylinder 12, an oil-free bushing 1201 is arranged at the connection between the cylinder 12 and the connecting plate 2, an oil-free bushing 1201 is symmetrically arranged on the outer center of the hinge pin 13, a cotter pin 1202 is arranged at the connection between the third connecting member 10 and the cylinder 12, and a metal washer 1203 is symmetrically arranged on the outer center of the cotter pin 1202. Through the control of the cylinder 12, the first connecting member 4, the second connecting member 5, the support block 8, and the third connecting member 10 are pushed to the lower end of the frame shell to support them so that they can be placed stably during welding to avoid frame displacement and welding errors.

[0023] See also Figure 5-6 In this embodiment, the rear end of the pressure arm 1 is movably connected with a guide assembly 14, and an angle seat 15 is movably connected between the pressure arm 1 and the third connecting member 10. The guide assembly 14 includes a guide rod 1401, a fourth connecting member 1402, a fifth connecting member 1403, and a tightening plug-in 1404. The rear end of the pressure arm 1 is movably connected with the guide rod 1401, and the fourth connecting member 1402 is movably connected to the connecting plate 2; the top of the fourth connecting member 1402 is provided with a fifth connecting member 1403, and the fourth connecting member 1402 and the fifth connecting member 1403 are bolted with a tightening plug-in 1404. The front end bolt of the angle seat 15 is provided with a sixth connecting member 1501, and the top of the sixth connecting member 1501 is provided with a support block 8, and a second gasket 303 is provided between the support block 8 and the angle seat 15. The setting of the guide rod 1401 and the angle seat 15 further improves the stability of the positioning fixture during clamping, which is convenient for the fixture to be used.

[0024] When working, according to the shape of the processed frame shell, the corresponding diamond pin 7 or round pin 9 is selected and installed on the pin seat 3, and the corresponding processed frame shell is installed on the positioning fixture, and it is positioned and welded. At the same time, through the control of the cylinder 12, the first connecting member 4, the second connecting member 5, the support block 8, and the third connecting member 10 are pushed to the lower end of the frame shell to support it so that it can be placed stably during the welding process to avoid frame displacement and welding errors, which will affect the appearance and increase the cost. In addition, according to different frame shells, the first connecting member 4, the support block 8 and the third connecting member 10 with corresponding different orientations and shapes are pushed, so as to facilitate the simultaneous operation of frame shells of different specifications and shapes, and improve the working efficiency. The setting of the guide rod 1401 and the angle seat 15 further improves the stability of the positioning fixture when clamping, which is convenient for the use of the fixture.

[0025] Through the above steps, according to the shape of the processed frame shell, the corresponding diamond pin 7 or round pin 9 is selected and installed on the pin seat 3, the corresponding processed frame shell is installed on the positioning fixture, and it is positioned and welded. At the same time, the first connecting member 4, the support block 8 and the third connecting member 10 with corresponding different orientations and shapes are pushed, so as to facilitate the simultaneous operation of frame shells of different specifications and shapes, so as to improve the working efficiency.

[0026] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A switchable welding positioning fixture, comprising a pressing arm (1); characterized in that: The invention also comprises a connecting plate (2), a pin seat (3), a first connecting member (4), a second connecting member (5), a bracket (6), a diamond pin (7), a support block (8), a round pin (9), a third connecting member (10), a proximity switch (11), a cylinder (12), a hinge pin (13), a guide assembly (14), and an angle seat (15). The connecting plate (2) is arranged on the left side of the bottom end of the pressure arm (1), and the pin seat (3) is bolted to the top end of the pressure arm (1).

2. A switchable welding positioning fixture according to claim 1, characterized in that: A first connecting member (4) is arranged on the left side of the pin seat (3), a second connecting member (5) is arranged on one side of the first connecting member (4), a bracket (6) is arranged on the other side of the first connecting member (4), a diamond pin (7) is movably connected to the top end of the second connecting member (5), and a support block (8) is arranged on the top end of the left side of the pressure arm (1).

3. A switchable welding positioning fixture according to claim 2, characterized in that: The pin seat (3) is provided with a first gasket (301), a limiting block (302), and a second gasket (303); the first gasket (301) is arranged between the pin seat (3) and the pressure arm (1); the limiting block (302) is arranged on the left side wall of the pressure arm (1); and the second gasket (303) is arranged between the pressure arm (1) and the support block (8).

4. A switchable welding positioning fixture according to claim 3, characterized in that: The top end of the second connecting member (5) is movably connected to a round pin (9), and the diamond pin (7) and the round pin (9) are interchangeable. The bottom end of the pressure arm (1) is connected to a third connecting member (10) via a limit block (302). A proximity switch (11) is provided at the top end of the bracket (6). The bottom end of the rear side of the pressure arm (1) is connected to a cylinder (12). A hinge pin (13) is connected to the right side wall of the third connecting member (10).

5. The switchable welding positioning fixture according to claim 4, characterized in that: The cylinder (12) is provided with an oil-free bushing (1201), a split pin (1202), and a metal washer (1203); the oil-free bushing (1201) is arranged at the connection between the cylinder (12) and the connection plate (2); the oil-free bushing (1201) is symmetrically arranged at the center of the outer side of the hinge pin (13); the split pin (1202) is arranged at the connection between the third connecting member (10) and the cylinder (12); and the metal washer (1203) is symmetrically arranged at the center of the outer side of the split pin (1202).

6. The switchable welding positioning fixture according to claim 5, characterized in that: The rear end of the pressure arm (1) is movably connected to a guide assembly (14); an angle seat (15) is movably connected between the pressure arm (1) and the third connecting member (10); the guide assembly (14) comprises a guide rod (1401), a fourth connecting member (1402), a fifth connecting member (1403), and a tightening plug (1404); the rear end of the pressure arm (1) is movably connected to the guide rod (1401); and the fourth connecting member (1402) is movably connected to the connecting plate (2).

7. The switchable welding positioning fixture according to claim 5, characterized in that: A fifth connecting member (1403) is arranged at the top end of the fourth connecting member (1402); a tightening plug-in (1404) is bolted between the fourth connecting member (1402) and the fifth connecting member (1403); a sixth connecting member (1501) is bolted at the front end of the angle seat (15); a supporting block (8) is arranged at the top end of the sixth connecting member (1501); and a second gasket (303) is arranged between the supporting block (8) and the angle seat (15).

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