An automobile accessory welding fixture

Abstract

The present invention relates to the technical field of welding fixtures, and specifically to a welding fixture for automobile parts, comprising a plurality of basic fixtures respectively arranged on a workbench and a mounting frame arranged on the workbench, and further comprising: an adjusting cylinder, wherein the adjusting cylinder is arranged on the mounting frame; a chuck placement plate, wherein the chuck placement plate is arranged on the top of the adjusting cylinder, and the quick-change chucks not in use in the chuck placement plate are all in a horizontal state; a switching unit, wherein the switching unit is arranged on the chuck placement plate, and is used to drive the plurality of quick-change chucks in the chuck placement plate to rotate and switch, and an unfolding and retracting unit, wherein the unfolding and retracting unit is arranged on the chuck placement plate. This welding fixture for automobile parts significantly reduces the space occupied by traditional quick-change chuck storage methods by centrally placing the quick-change chucks in the chuck placement plate and keeping them in a horizontal state when not in use. The design of the switching unit and the unfolding and retracting unit makes the replacement and storage of the quick-change chucks more compact and efficient.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of welding fixtures, in particular to an automobile part welding fixture. BACKGROUND

[0002] In the automobile manufacturing industry, the exhaust pipe is a key component of the automobile power system, and its quality and performance directly affect the emission efficiency and overall performance of the automobile. Therefore, the welding operation of the exhaust pipe has always been an important link in the automobile production process. In order to improve the flexibility and efficiency of the welding operation, quick-change chuck technology has emerged, which allows operators to quickly replace different specifications or types of chucks without disassembling the fixture, so as to adapt to the welding requirements of different parts.

[0003] However, we found in actual use that the traditional quick-change chuck storage method is usually to place multiple chucks in a larger placement disc. Although this design facilitates the centralized management of the chucks, it also brings problems of large space occupation and many operation disturbances. Especially when welding the exhaust pipe, due to the limitation of the welding equipment and the welding path, the operator often needs to frequently move or avoid the placement disc storing the quick-change chucks to ensure the smooth progress of the welding operation, which not only increases the operation difficulty and labor intensity, but also may lead to the reduction of welding efficiency and the fluctuation of welding quality. Therefore, we propose an automobile part welding fixture. SUMMARY

[0004] One of the technical problems to be solved by the present application is how to design a quick-change automobile part welding fixture that can reduce the space of the placement disc.

[0005] To solve the above technical problems, the application provides an automobile part welding fixture, which comprises a plurality of base fixtures arranged on a workbench and a mounting rack arranged on the workbench, and further comprises:

[0006] An adjusting cylinder is arranged on the mounting rack.

[0007] A chuck placement disc is arranged on the top of the adjusting cylinder, and the quick-change chucks in the chuck placement disc that are not in use are in a horizontal state.

[0008] A switching unit is arranged on the chuck placement disc, which is used to drive the plurality of quick-change chucks in the chuck placement disc to rotate and switch, and make the quick-change chuck in use extend to the side of the exhaust pipe.

[0009] An unfolding and folding unit is arranged on the chuck placement disc, which is used to convert the quick-change chuck to be used from a horizontal state to a vertical state, and convert the used quick-change chuck from a vertical state to a horizontal state.

[0010] In some embodiments, the switching unit comprises a polygonal block arranged in the chuck placing disc, a rotating member is arranged on the chuck placing disc to drive the polygonal block to rotate, and a retraction member is arranged on the chuck placing disc to cooperate with the rotating member to control the quick-change chuck in use to extend to the side of the exhaust pipe when the polygonal block rotates.

[0011] In some embodiments, the rotating member comprises a driving motor arranged on the chuck placing disc, a fixed shaft is arranged on the chuck placing disc to rotate, the output end of the driving motor is connected with the fixed shaft, and the polygonal block is arranged on the fixed shaft.

[0012] In some embodiments, the retraction member comprises a fixed guide rail arranged on the chuck placing disc, a multi-stage telescopic pipe is arranged on each face of the polygonal block, a fixed seat is arranged at the end of the multi-stage telescopic pipe, a guide roller is arranged on the fixed seat to rotate and cooperate with the fixed guide rail, a return spring is arranged between each face of the polygonal block and the fixed seat, and the return spring is arranged inside the multi-stage telescopic pipe.

[0013] In some embodiments, the extension and retraction unit comprises two side plates arranged on the bottom of the mounting seat respectively, a connecting member is arranged between the two side plates to connect the quick-change chuck, a positioning member is arranged between the two side plates and the rotating block to achieve the locking and positioning of the rotating block, and an adjusting member is arranged on the chuck placing disc to adjust the state of the quick-change chuck.

[0014] In some embodiments, the connecting member comprises a rotating shaft arranged between the two side plates to rotate, the rotating shaft is provided with a rotating block, and the quick-change chuck is arranged on the adjacent rotating block.

[0015] In some embodiments, the side plate and the mounting seat are connected by bolts, and the rotating block and the quick-change chuck are connected by bolts.

[0016] In some embodiments, the positioning member comprises two fixed springs arranged on the two sides of the rotating block respectively, the end of the fixed spring is provided with a locking block, and two clamping grooves are arranged on the side plate to cooperate with the locking block.

[0017] In some embodiments, the adjusting member comprises an electric push rod arranged on the chuck placing disc, an end of the electric push rod is provided with a displacement seat, the displacement seat is provided with a first switching motor, an output end of the first switching motor is provided with a rotating rod, the rotating rod is provided with a shifting lever, the shifting lever and the rotating block are attached to each other, and the shifting lever is used for converting the quick-change chuck to be used from a horizontal state to a vertical state, the chuck placing disc is provided with a second switching motor, an output end of the second switching motor is provided with a rotating rod, the rotating rod and the rotating block are attached to each other, and the rotating rod is used for converting the used quick-change chuck from the vertical state to the horizontal state.

[0018] In some embodiments, the adjusting member comprises a fixed gear arranged on the rotating shaft, and the chuck placing disc is provided with a first fixed rack and a second fixed rack on both sides.

[0019] The present application has at least the following advantages:

[0020] 1. Space optimization and efficient use: By placing the quick-change chucks in the chuck placing disc and keeping them in a horizontal state in a non-use state, the space occupied by the traditional quick-change chuck storage mode is significantly reduced, the design of the switching unit and the folding and unfolding unit makes the replacement and storage of the quick-change chucks more compact and efficient, and the utilization rate of the workbench is improved.

[0021] 2. Improve welding efficiency and flexibility: The switching unit can automatically drive multiple quick-change chucks in the chuck placing disc to rotate and switch, so that the used quick-change chuck can be quickly and accurately positioned to one side of the exhaust pipe, reducing the time for manual searching and positioning the chuck, and the folding and unfolding unit can automatically convert the quick-change chuck to be used from a horizontal state to a vertical state, and convert the used quick-change chuck from a vertical state to a horizontal state, further improving the continuity and efficiency of the welding operation.

[0022] 3. Improve the automation level of production: The design of the clamp realizes the automatic switching and folding and unfolding of the quick-change chuck, improves the automation level of the production line, and reduces the need for manual intervention. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0024] Figure 2 It is a schematic diagram of the mounting frame and chuck placing disc structure of the present application;

[0025] Figure 3 It is a schematic diagram of the bottom structure of the chuck placing disc of the present application;

[0026] Figure 4 It is a schematic diagram of the local section structure of the chuck placing disc of the present application;

[0027] Figure 5Local section structure schematic diagram of multistage telescopic pipe of the present application;

[0028] Figure 6 Local section structure schematic diagram of the present application

[0029] Figure 7 Local section structure schematic diagram of the present application Figure 6 Local section structure schematic diagram of A area of the present application

[0030] Figure 8 Local section structure schematic diagram of the present application

[0031] Figure 9 Local section structure schematic diagram of B area of the present application Figure 4

[0032] Local section structure schematic diagram of C area of the present application Figure 10 Figure 4 Local section structure schematic diagram of the present application

[0033] Figure 11 Local section structure schematic diagram of D area of the present application

[0034] Figure 12 Figure 11 Local section structure schematic diagram of E area of the present application

[0035] Figure 13 Local section structure schematic diagram of the present application Figure 11 Local section structure schematic diagram of the present application

[0036] In the figure: 1, base clamp; 2, mounting frame; 3, switching unit; 31, polygon block; 4, rotating part; 41, driving motor; 42, fixed shaft; 5, retracting part; 51, fixed guide rail; 52, multistage telescopic pipe; 53, fixed seat; 54, guide roller; 55, return spring; 6, expansion and contraction unit; 61, side plate; 7, connecting part; 71, rotating shaft; 72, rotating block; 8, positioning part; 81, fixed spring; 82, locking block; 83, clamping groove; 9, adjusting part; 91, electric push rod; 92, displacement seat; 93, first switching motor; 94, rotating rod; 95, shifting rod; 96, second switching motor; 97, rotating rod; 98, fixed gear; 99, first fixed rack; 910, second fixed rack; 10, adjusting cylinder; 11, chuck placing disc. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. ​​

[0038] Embodiment 1

[0039] Please refer to Figures 1-10 The present application provides a technical solution:

[0040] A car parts welding fixture, comprising a plurality of base clamps 1 arranged on the workbench and a mounting frame 2 arranged on the workbench, the base clamps 1 comprising a plurality of clamping structures of different sizes and shapes for clamping the exhaust pipe structure placed on the workbench, the mounting frame 2 being used to place the car parts welding fixture mentioned in the present solution, which is only provided with one in the present solution, and can be adjusted according to factors such as workpiece shape, welding position and welding process in actual use, and is not limited, further comprising:

[0041] An adjusting cylinder 10 is arranged on the mounting frame 2 for controlling the height position of the welding fixture to ensure normal welding work;

[0042] A chuck placing disc 11 is arranged on the top of the adjusting cylinder 10, and the quick-change chucks not in use in the chuck placing disc 11 are in a horizontal state, which makes the quick-change chucks in the chuck placing disc 11 not occupy too much space, thereby directly reducing the size of the chuck placing disc 11;

[0043] A switching unit 3 is arranged on the chuck placing disc 11 for driving the quick-change chucks in the chuck placing disc 11 to rotate and switch, and making the quick-change chuck in use extend to the side of the exhaust pipe;

[0044] The switching unit 3 comprises a polygonal block 31 arranged in the chuck placing disc 11, a rotating member 4 arranged on the chuck placing disc 11 for driving the polygonal block 31 to rotate, and a retracting member 5 arranged on the chuck placing disc 11 and cooperating with the rotating member 4 for controlling the quick-change chuck in use in the chuck placing disc 11 to extend to the side of the exhaust pipe when the polygonal block 31 rotates;

[0045] The rotating member 4 comprises a driving motor 41 arranged on the chuck placing disc 11, a fixed shaft 42 rotatably arranged on the chuck placing disc 11, and the output end of the driving motor 41 being connected with the fixed shaft 42, and the polygonal block 31 being arranged on the fixed shaft 42;

[0046] The driving motor 41 drives the fixed shaft 42 to rotate, and the fixed shaft 42 drives the polygonal block to rotate;

[0047] The contraction piece 5 comprises a fixed guide rail 51 arranged on the chuck placing disc 11, a plurality of levels of telescopic pipes 52 are arranged on each face of the polygonal block 31, the fixed seat 53 is arranged at the end of each of the plurality of levels of telescopic pipes 52, the guide roller 54 which is used in cooperation with the fixed guide rail 51 is rotatably arranged on the fixed seat 53, the reset spring 55 is arranged between each face of the polygonal block 31 and the fixed seat 53, and the reset spring 55 is located inside the plurality of levels of telescopic pipes 52;

[0048] The fixed guide rail 51 is in the shape of a water drop, which is combined by a linear guide rail and an arc-shaped guide rail, and has the advantages of high adaptability, good flexibility and long service life;

[0049] When the polygonal block 31 rotates, the guide roller 54 on the fixed seat 53 is always attached to the fixed guide rail 51 under the elastic force of the reset spring 55, and the plurality of levels of telescopic pipes 52 are adjusted in extension and contraction along with the shape of the fixed guide rail 51, so that the stable displacement of the fixed seat 53 is further ensured;

[0050] The expansion and contraction unit 6 is arranged on the chuck placing disc 11, and is used for converting the quick-change chuck to be used from a horizontal state to a vertical state, and converting the used quick-change chuck from the vertical state to the horizontal state;

[0051] The expansion and contraction unit 6 comprises two side plates 61 which are respectively arranged on the two sides of the bottom of the mounting seat, a connecting piece 7 is arranged between the two side plates 61 and is used for connecting the quick-change chuck, a positioning piece 8 is arranged between the two side plates 61 and the rotating block 72 and is used for locking and positioning the rotating block 72, and an adjusting piece 9 is arranged on the chuck placing disc 11 and is used for adjusting the state of the quick-change chuck;

[0052] The connecting piece 7 comprises a rotating shaft 71 which is rotatably arranged between the two side plates 61, and the rotating block 72 is arranged on the rotating shaft 71, and the quick-change chuck is arranged on the adjacent rotating block 72;

[0053] The rotation of the rotating shaft 71 can drive the rotating block 72 and the quick-change chuck to rotate and adjust synchronously;

[0054] The side plate 61 and the mounting seat are connected through bolts, the rotating block 72 and the quick-change chuck are connected through bolts, and the bolts can be replaced according to actual needs, for example, when the quick-change chuck cannot be normally used, the bolts between the rotating block 72 and the quick-change chuck can be disassembled to replace a new quick-change connector, and for example, when too much welding slag is left on the surface of the rotating block 72 close to the side plate 61 and the rotating block 72 cannot be normally used, the bolts between the side plate 61 and the mounting seat can be disassembled for replacement;

[0055] The positioning member 8 comprises two fixed springs 81 arranged on both sides of the rotating block 72, and the end of the fixed spring 81 is provided with a locking block 82, and two clamping grooves 83 matched with the locking block 82 are arranged on the side plate 61.

[0056] When the rotating block 72 rotates, the fixed spring 81 always presses the locking block 82, and when entering another clamping groove 83, it will be automatically clamped, so as to change the position of the rotating block 72 and lock the position;

[0057] The adjusting member 9 comprises an electric push rod 91 arranged on the clamp head placing disc 11, and the end of the electric push rod 91 is provided with a displacement seat 92, and the displacement seat 92 is provided with a first switching motor 93, and the output end of the first switching motor 93 is provided with a rotating rod 94, and the rotating rod 94 is provided with a push rod 95, and the push rod 95 is attached to the rotating block 72, and is used for changing the quick-change clamp head from a horizontal state to a vertical state, and the clamp head placing disc 11 is provided with a second switching motor 96, and the output end of the second switching motor 96 is provided with a rotating rod 97, and the rotating rod 97 is attached to the rotating block 72, and is used for changing the quick-change clamp head from a vertical state to a horizontal state;

[0058] When the quick-change connector passes through the first switching motor 93, the electric push rod 91 is started to drive the displacement seat 92 to displace forward, and after the push rod 95 is inserted into the rotating block 72, the first switching motor 93 is started to drive the rotating rod 94 and the push rod 95 to rotate, and the push rod 95 drives the rotating block 72 to rotate, so as to change the quick-change clamp head from a horizontal state to a vertical state, and enter the welding use area;

[0059] When the quick-change connector passes through the second switching motor 96, the second switching motor 96 is started to drive the rotating rod 97 to rotate, and the rotating rod 97 drives the rotating block 72 to rotate, so as to change the quick-change clamp head from a vertical state to a horizontal state, and enter the storage area.

[0060] In use, the quick-change connector and the rotating block 72 are replaced according to the situation, specifically, through the connection of the bolts, each structure can be replaced according to the actual demand:

[0061] When the quick-change clamp head cannot be normally used, a new quick-change connector can be replaced by disassembling the bolts between the rotating block 72 and the quick-change clamp head;

[0062] When too much welding slag is left on the surface of the rotating block 72 close to the side plate 61 and cannot be normally used, the bolts between the side plate 61 and the mounting seat can also be disassembled for replacement;

[0063] When the quick-change connector needs to be replaced, the driving motor 41 rotates to drive the fixed shaft 42 to rotate, and the fixed shaft 42 rotates to drive the polygon block to rotate. When the polygon block 31 rotates, the always-guiding roller 54 on the fixed seat 53 is attached to the fixed guide rail 51 under the elastic force of the reset spring 55, and the multi-stage telescopic pipe 52 is adjusted in extension and contraction along the shape of the fixed guide rail 51, further ensuring the stable displacement of the fixed seat 53;

[0064] When the quick-change connector passes through the first switching motor 93, the electric push rod 91 is started to drive the displacement seat 92 to displace forward, and after the shift lever 95 is inserted into the rotating block 72, the first switching motor 93 is started to drive the rotating rod 94 and the shift lever 95 to rotate, and the shift lever 95 drives the rotating block 72 to rotate, so that the quick-change chuck to be used is turned from a horizontal state to a vertical state and enters a welding use area;

[0065] When the quick-change connector passes through the second switching motor 96, the second switching motor 96 is started to drive the rotating rod 97 to rotate, and the rotating rod 97 drives the rotating block 72 to rotate, so that the used quick-change chuck is turned from a vertical state to a horizontal state and enters a storage area.

[0066] Embodiment 2

[0067] Please refer to Figures 1-13 The present application provides a technical solution:

[0068] Different from embodiment 1, the present solution provides another embodiment of the adjusting member 9:

[0069] A welding fixture for automobile parts includes a plurality of base fixtures 1 arranged on a workbench and a mounting rack 2 arranged on the workbench. The base fixture 1 includes a plurality of fixture structures of different sizes and shapes for clamping an exhaust pipe structure placed on the workbench. The mounting rack 2 is used to place the welding fixture for automobile parts mentioned in the present solution. In the present solution, only one fixture is arranged, which can be adjusted according to factors such as the shape of the workpiece, the welding position and the welding process, without limitation. The welding fixture further includes:

[0070] The adjusting cylinder 10 is arranged on the mounting rack 2 and is used to control the height position of the welding fixture to ensure that the welding work is normally performed.

[0071] The chuck placing disc 11 is arranged on the top of the adjusting cylinder 10. The quick-change chucks not in use in the chuck placing disc 11 are in a horizontal state. This way, the quick-change chucks existing in the chuck placing disc 11 do not occupy too much space, thereby directly reducing the size of the chuck placing disc 11.

[0072] A switching unit 3 is arranged on the chuck placing disc 11, and is used to drive the plurality of quick-change chucks in the chuck placing disc 11 to rotate and switch, and to make the used quick-change chuck extend to the side of the exhaust pipe;

[0073] The switching unit 3 comprises a polygon block 31 arranged in the chuck placing disc 11, the chuck placing disc 11 is provided with a rotating member 4, which is used to drive the polygon block 31 to rotate, and the chuck placing disc 11 is provided with a retracting member 5 used in cooperation with the rotating member 4, which is used to control the used quick-change chuck in the chuck placing disc 11 to extend to the side of the exhaust pipe when the polygon block 31 rotates;

[0074] The rotating member 4 comprises a driving motor 41 arranged on the chuck placing disc 11, the chuck placing disc 11 is rotatably provided with a fixed shaft 42, the output end of the driving motor 41 is connected with the fixed shaft 42, and the polygon block 31 is arranged on the fixed shaft 42;

[0075] The driving motor 41 drives the fixed shaft 42 to rotate, and the fixed shaft 42 drives the polygon block to rotate;

[0076] The retracting member 5 comprises a fixed guide rail 51 arranged on the chuck placing disc 11, a plurality of multi-stage telescopic pipes 52 are arranged on each face of the polygon block 31, a fixed seat 53 is arranged at the end of each multi-stage telescopic pipe 52, a guide roller 54 used in cooperation with the fixed guide rail 51 is rotatably arranged on the fixed seat 53, a reset spring 55 is arranged between each face of the polygon block 31 and the fixed seat 53, and the reset spring 55 is arranged in the multi-stage telescopic pipe 52;

[0077] The fixed guide rail 51 has a water-drop-shaped structure, which is combined by a linear guide rail and an arc-shaped guide rail, and has the advantages of high adaptability, good flexibility and long service life;

[0078] When the polygon block 31 rotates, the guide roller 54 on the fixed seat 53 always adheres to the fixed guide rail 51 under the elastic force of the reset spring 55, and the multi-stage telescopic pipe 52 is adjusted in extension and contraction along with the shape of the fixed guide rail 51, so that the stable displacement of the fixed seat 53 is further ensured;

[0079] An unfolding and retracting unit 6 is arranged on the chuck placing disc 11, and is used to make the used quick-change chuck change from the horizontal state to the vertical state, and to make the used quick-change chuck change from the vertical state to the horizontal state;

[0080] The extension and retraction unit 6 comprises two side plates 61 arranged at the bottom of the mounting seat on both sides, a connecting piece 7 is arranged between the two side plates 61 for connecting the quick-change chuck, a positioning piece 8 is arranged between the two side plates 61 and the rotating block 72 for locking and positioning the rotating block 72, and an adjusting piece 9 is arranged on the chuck placing disc 11 for adjusting the state of the quick-change chuck.

[0081] The connecting piece 7 comprises a rotating shaft 71 rotatably arranged between the two side plates 61, and the rotating shaft 71 is provided with a rotating block 72.

[0082] The rotating shaft 71 can drive the rotating block 72 and the quick-change chuck to rotate synchronously.

[0083] The side plate 61 and the mounting seat are connected by bolts, and the rotating block 72 and the quick-change chuck are connected by bolts.

[0084] The positioning piece 8 comprises two fixed springs 81 arranged on both sides of the rotating block 72, and the fixed spring 81 is provided with a locking block 82 at the end.

[0085] When the rotating block 72 rotates, the fixed spring 81 always presses the locking block 82, and when it enters another clamping groove 83, it will be automatically clamped, so as to change the position of the rotating block 72 and lock and position it.

[0086] The adjusting piece 9 comprises a fixed gear 98 arranged on the rotating shaft 71, and the chuck placing disc 11 is provided with a first fixed gear rack 99 and a second fixed gear rack 910 on both sides.

[0087] When the fixed gear 98 passes through the first fixed gear rack 99, the fixed gear 98 and the first fixed gear rack 99 are engaged, the fixed gear 98 and the rotating shaft 71 rotate, the rotating block 72 and the quick-change chuck rotate, the quick-change chuck to be used is changed from a horizontal state to a vertical state, and enters the welding use area.

[0088] When the pinion gear passes through the second fixed rack 910, the fixed gear 98 and the second fixed gear 98 are engaged, the fixed gear 98 and the rotating shaft 71 are reversely rotated, the rotating block 72 and the quick-change chuck are rotated, and the used quick-change chuck is turned from the vertical state to the horizontal state and enters the storage area.

[0089] In use, the quick-change chuck and the rotating block 72 are replaced according to the situation, specifically, through the connection of the bolts, each structure can be replaced according to the actual needs:

[0090] When the quick-change chuck cannot be normally used, a new quick-change chuck can be replaced by disassembling the bolts between the rotating block 72 and the quick-change chuck;

[0091] When the surface of the rotating block 72 close to the side plate 61 is left with too much welding slag and cannot be normally used, the side plate 61 and the mounting seat can be replaced by disassembling the bolts therebetween;

[0092] When the quick-change chuck needs to be replaced, the driving motor 41 is rotated to drive the fixed shaft 42 to rotate, the fixed shaft 42 drives the polygon block to rotate, and when the polygon block 31 rotates, the always-guiding roller 54 on the fixed seat 53 is attached to the fixed guide rail 51 under the elastic force of the return spring 55, and the multi-stage telescopic pipe 52 is adjusted in extension and contraction along with the shape of the fixed guide rail 51, further ensuring the stable displacement of the fixed seat 53;

[0093] When the fixed gear 98 passes through the first fixed rack 99, the fixed gear 98 and the first fixed rack 99 are engaged, the fixed gear 98 and the rotating shaft 71 are rotated, the rotating block 72 and the quick-change chuck are rotated, and the to-be-used quick-change chuck is turned from the horizontal state to the vertical state and enters the welding use area;

[0094] When the pinion gear passes through the second fixed rack 910, the fixed gear 98 and the second fixed gear 98 are engaged, the fixed gear 98 and the rotating shaft 71 are reversely rotated, the rotating block 72 and the quick-change chuck are rotated, and the used quick-change chuck is turned from the vertical state to the horizontal state and enters the storage area.

[0095] It should be noted that in this text, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0096] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and changes can be made by those skilled in the art without departing from the spirit and principles of the present application.

Claims

1. An automobile parts welding fixture, comprising a plurality of basic fixtures (1) respectively arranged on a workbench and a mounting frame (2) arranged on the workbench, characterized in that: It also includes: an adjusting cylinder (10), wherein the adjusting cylinder (10) is arranged on the mounting frame (2); A chuck placement plate (11), wherein the chuck placement plate (11) is arranged on the top of the regulating cylinder (10), and the quick-change chucks not in use in the chuck placement plate (11) are all in a horizontal state; A switching unit (3), the switching unit (3) being arranged on the chuck placement plate (11), and being used to drive a plurality of quick-change chucks in the chuck placement plate (11) to rotate and switch, and to cause the quick-change chucks in use to extend toward one side of the exhaust pipe; An unfolding and retracting unit (6), the unfolding and retracting unit (6) being arranged on a chuck placement plate (11), and being used to rotate a quick-change chuck to be used from a horizontal state to a vertical state, and to rotate a used quick-change chuck from a vertical state to a horizontal state; The switching unit (3) comprises a polygonal block (31) arranged in a chuck placement disk (11); a rotating member (4) is provided on the chuck placement disk (11) for driving the polygonal block (31) to rotate; a contraction member (5) used in conjunction with the rotating member (4) is provided on the chuck placement disk (11) for controlling the quick-change chuck in use in the chuck placement disk (11) to extend toward the exhaust pipe when the polygonal block (31) rotates; The shrinking member (5) includes a fixed guide rail (51) arranged on the chuck placement plate (11); a multi-stage telescopic tube (52) is arranged on each surface of the polygonal block (31); a fixed seat (53) is arranged at the end of the multi-stage telescopic tube (52); a guide roller (54) is rotatably arranged on the fixed seat (53) and is used in conjunction with the fixed guide rail (51); a return spring (55) is arranged between each surface of the polygonal block (31) and the fixed seat (53); and the return spring (55) is located inside the multi-stage telescopic tube (52); The unfolding and retracting unit (6) comprises two side plates (61) respectively arranged on both sides of the bottom of the mounting seat; a connecting member (7) is arranged between the two side plates (61) for connecting the quick-change chuck; the connecting member (7) comprises a rotating block (72); a positioning member (8) is arranged between the two side plates (61) and the rotating block (72) for achieving locking and positioning of the rotating block (72); an adjusting member (9) is arranged on the chuck placement plate (11) for adjusting the state of the quick-change chuck.

2. The automobile parts welding fixture according to claim 1, characterized in that: The rotating member (4) comprises a driving motor (41) arranged on a chuck placement disk (11); a fixed shaft (42) is rotatably arranged on the chuck placement disk (11); an output end of the driving motor (41) is connected to the fixed shaft (42); and the polygonal block (31) is arranged on the fixed shaft (42).

3. The automobile parts welding fixture according to claim 2, characterized in that: The connecting member (7) comprises a rotating shaft (71) rotatably arranged between the two side plates (61), a rotating block (72) is arranged on each of the rotating shafts (71), and quick-change chucks are respectively arranged on adjacent rotating blocks (72).

4. The automobile parts welding fixture according to claim 3, characterized in that: The side plate (61) and the mounting seat are connected via bolts, and the rotating block (72) and the quick-change chuck are connected via bolts.

5. The automobile parts welding fixture according to claim 3, characterized in that: The positioning member (8) includes two fixed springs (81) respectively arranged on both sides of the rotating block (72), and a locking block (82) is provided at the end of the fixed spring (81). The side plate (61) is provided with two card slots (83) used in conjunction with the locking block (82).

6. The automobile parts welding fixture according to claim 3, characterized in that: The adjusting member (9) comprises an electric push rod (91) arranged on the chuck placement disk (11), a shift seat (92) is arranged at the end of the electric push rod (91), a first switching motor (93) is arranged on the shift seat (92), a rotating rod (94) is arranged at the output end of the first switching motor (93), a shift rod (95) is arranged on the rotating rod (94), the shift rod (95) is fitted with the rotating block (72) and is used to turn the quick-change chuck to be used from a horizontal state to a vertical state, a second switching motor (96) is arranged on the chuck placement disk (11), a rotating rod (97) is arranged at the output end of the second switching motor (96), the rotating rod (97) is fitted with the rotating block (72) and is used to turn the used quick-change chuck from a vertical state to a horizontal state.

7. The automobile parts welding fixture according to claim 3, characterized in that: The adjusting member (9) includes a fixed gear (98) arranged on the rotating shaft (71), and a first fixed rack (99) and a second fixed rack (910) are respectively arranged on both sides of the chuck placement disk (11).

Images