CN219274961U

CN219274961U - Automatic welding clamping tool for chassis production

Info

Publication number: CN219274961U
Application number: CN202320783017.3U
Authority: CN
Inventors: 荣伟娟
Original assignee: TIANJIN JINGTAI TECHNOLOGY DEVELOPMENT CO LTD
Current assignee: TIANJIN JINGTAI TECHNOLOGY DEVELOPMENT CO LTD
Priority date: 2023-04-11
Filing date: 2023-04-11
Publication date: 2023-06-30
Anticipated expiration: 2033-04-11

Abstract

The utility model relates to an automatic welding clamping tool for chassis production. The device comprises an installation operation table, wherein two groups of movable portal frames with adjustable X-direction positions are installed on the installation operation table, two groups of Y-direction movable seats with adjustable Y-direction positions are installed on each movable portal frame, and clamping units for clamping the walls of a chassis are installed on each Y-direction movable seat; the two ends of each movable portal frame are provided with opposite outer propping structures, and the movable portal frames are provided with second downward pressing cylinders for pressing the chassis downwards; first, second, third and fourth clamping devices which are distributed according to the circumferential direction and are connected with the installation operation table are arranged between the two groups of movable portal frames; the device also comprises a first adjusting device and a second adjusting device; each clamping unit is located above each clamping device. The clamping device can perform stable clamping operation on the sheet metal part, avoids the inclined state of the sheet metal part, and improves welding accuracy and applicability of the tool.

Description

Automatic welding clamping tool for chassis production

Technical Field

The utility model belongs to the technical field of machining, and particularly relates to an automatic welding clamping tool for chassis production.

Background

In the production process of the electronic case, the metal plate is used as a production raw material, firstly, the purchased metal plate is cut into the specification and the size meeting the production requirement, then, the plate subjected to the cutting operation is subjected to punch forming, then, sheet metal parts are formed, the clamping tool is used for positioning and clamping the plurality of sheet metal parts, then, the adjacent sheet metal parts are subjected to welding operation, and then the case is formed.

In the actual working process, the existing clamping tool can position a plurality of sheet metal parts, but has certain defects: firstly, in the clamping process of the sheet metal part, the existing clamping tool is often unstable in clamping of the sheet metal part, so that the inclined state of the sheet metal part is easy to appear, further shaking appears in the welding process, and the welding accuracy is influenced; secondly, the transverse position of the clamping device in the existing clamping tool is fixed, clamping and positioning operations cannot be carried out on electronic cabinets with different sizes and different models, and the applicability of the clamping tool is reduced.

Disclosure of Invention

The utility model provides an automatic welding clamping tool for chassis production, which is reasonable in structural design, stable in clamping and high in applicability, and solves the technical problems in the prior art.

The utility model adopts the technical proposal for solving the technical problems in the prior art that: the automatic welding clamping tool for the chassis production comprises an installation operation table, wherein two groups of movable portal frames with adjustable X-direction positions are installed on the installation operation table, two groups of Y-direction movable seats with adjustable Y-direction positions are installed on each movable portal frame, and clamping units for clamping the chassis walls are installed on each Y-direction movable seat; the two ends of each movable portal frame are provided with opposite outer propping structures, and the movable portal frames are provided with second downward pressing cylinders for pressing the chassis downwards; a first clamping device, a second clamping device, a third clamping device and a fourth clamping device which are distributed according to the circumferential direction and are connected with the installation operation table are arranged between the two groups of movable portal frames; the device also comprises a first adjusting device for adjusting the position of the third clamping device and a second adjusting device for adjusting the fourth clamping device; each clamping unit is located above each clamping device.

The utility model has the advantages and positive effects that: the utility model provides an automatic welding clamping tool for chassis production, which can clamp the lower part of a sheet metal part by arranging a first clamping device, a second clamping device, a third clamping device and a fourth clamping device; the clamping unit is arranged to clamp the upper part of the sheet metal part; the clamping units and the clamping devices act together to firmly clamp the sheet metal parts, so that the inclined state of the sheet metal parts is avoided, the sheet metal parts are prevented from shaking in the welding process, and the welding accuracy is improved; the X-direction position and the Y-direction position of the clamping unit can be adjusted according to the model and the size of the chassis to be produced by arranging the movable portal frame with the adjustable X-direction position and the Y-direction movable seat with the adjustable Y-direction position, so that the clamping unit can be suitable for producing chassis with different specifications and sizes; through setting up first adjusting device and second adjusting device, can adjust fourth clamping device's X to position and third clamping device's Y to the position according to the size of the quick-witted case of needs production, and then make a plurality of clamping device combined action applicable in producing the electronic machine case of equidimension, different models, improved the suitability of centre gripping frock.

Preferably: the clamping unit comprises an outer clamping device which is arranged on the Y-direction moving seat and used for clamping the outer side wall of the case and an inner clamping device which is used for clamping the inner side wall of the case; the inner supporting device is arranged on the inner clamping device and can be clamped with the inner angle of the case; the device also comprises a first pressing cylinder which is arranged on the outer clamping device and used for pressing the sheet metal part downwards.

Preferably: the inner clamping device comprises an inner clamping cylinder arranged on the Y-direction moving seat, and an inner clamping pressing plate is arranged on the inner clamping cylinder; the inner clamping cylinder can drive the inner clamping pressing plate to turn over by a certain angle.

Preferably: the outer clamping device comprises an outer clamping cylinder arranged on the Y-direction moving seat, and an outer clamping pressing plate is arranged on the outer clamping cylinder; the outer clamping cylinder can drive the outer clamping pressing plate to turn over a certain angle.

Preferably: the inner supporting device comprises a first inner supporting cylinder which is transversely arranged at the extending end and fixedly connected with the inner clamping pressing plate, a transition mounting plate is arranged at the extending end of the first inner supporting cylinder, a second inner supporting cylinder which is longitudinally arranged at the extending end is fixedly connected on the transition mounting plate, and an inner supporting positioning plate is arranged at the extending end of the second inner supporting cylinder.

Preferably: the first clamping device comprises a first outer clamping plate and a first inner clamping plate which are oppositely arranged, a first base plate fixedly connected with the installation operation table is arranged between the first outer clamping plate and the first inner clamping plate, the first outer clamping plate is fixedly connected with the installation operation table, the first clamping device further comprises a first clamping guide rail which is fixedly connected on the installation operation table, is transversely arranged and is perpendicular to the first outer clamping plate, the first inner clamping plate is in sliding connection with the first clamping guide rail through a sliding block, and the first clamping device further comprises a first clamping cylinder used for driving the first inner clamping plate to move along the first clamping guide rail; the second clamping device comprises a second outer clamping plate and a second inner clamping plate which are oppositely arranged, a second base plate fixedly connected with the installation operation table is arranged between the second outer clamping plate and the second inner clamping plate, the second outer clamping plate is fixedly connected with the installation operation table, the second clamping device further comprises a second clamping guide rail fixedly connected with the installation operation table and transversely arranged and perpendicular to the second outer clamping plate, the second inner clamping plate is in sliding connection with the second clamping guide rail through a sliding block, and the second clamping device further comprises a second clamping cylinder used for driving the second inner clamping plate to move along the second clamping guide rail.

Preferably: the third clamping device comprises a third inner clamping plate and a third outer clamping plate which are oppositely arranged, and further comprises a third inner clamping guide rail and a third outer clamping guide rail which are transversely arranged and perpendicular to the clamping plates, wherein the third inner clamping plate is in sliding connection with the third inner clamping guide rail through a sliding block, the third outer clamping plate is in sliding connection with the third outer clamping guide rail through a sliding block, and further comprises a third inner clamping cylinder connected with the third inner clamping plate and a third outer clamping cylinder connected with the third outer clamping plate; the fourth clamping device comprises a fourth inner clamping plate and a fourth outer clamping plate which are oppositely arranged, and further comprises a fourth inner clamping guide rail and a fourth outer clamping guide rail which are transversely arranged and perpendicular to the clamping plates, wherein the fourth inner clamping plate is in sliding connection with the fourth inner clamping guide rail through a sliding block, the fourth outer clamping plate is in sliding connection with the fourth outer clamping guide rail through a sliding block, and the fourth clamping device further comprises a fourth inner clamping cylinder connected with the fourth inner clamping plate and a fourth outer clamping cylinder connected with the fourth outer clamping plate.

Preferably: the first adjusting device comprises a first adjusting guide rail fixedly connected to the mounting operation table and arranged in parallel with the third inner clamping guide rail, a first adjusting mounting plate is connected to the first adjusting guide rail in a sliding manner through a sliding block, and a first locking knob which is arranged on the first adjusting mounting plate and used for locking the position of the first adjusting mounting plate is also included; the second adjusting device comprises a second adjusting guide rail fixedly connected on the installation operating platform and arranged in parallel with the fourth inner clamping guide rail, a second adjusting installation plate is connected on the second adjusting guide rail in a sliding mode through a sliding block, and the second adjusting device further comprises a second locking knob which is installed on the second adjusting installation plate and used for locking the position of the second adjusting installation plate.

Preferably: the outer propping structure comprises a guide rod cylinder which is transversely arranged at the extending end fixedly connected with the movable portal frame, and a clamping plate which can be propped against the outer side wall of the case is arranged at the extending end of the guide rod cylinder.

Preferably: the device also comprises two groups of transversely arranged X-direction guide rails fixedly connected on the installation operation table, wherein each X-direction guide rail is slidably connected with two groups of X-direction moving seats through a sliding block, and each movable portal frame is slidably connected with the X-direction guide rail through the X-direction moving seat; an X-direction locking seat is arranged on each X-direction moving seat, a locking pin shaft is arranged on each X-direction locking seat, and a plurality of groups of X-direction locking holes which are in plug-in fit with the locking pin shafts are formed in the installation operation table; the Y-direction guide rails which are transversely arranged are fixedly connected on each movable portal frame, each Y-direction movable seat is in sliding connection with the Y-direction guide rail through a sliding block, each Y-direction movable seat is provided with a Y-direction locking seat, each Y-direction locking seat is provided with a locking pin shaft, and a plurality of groups of positioning holes which are in splicing fit with the locking pin shafts are formed in the movable portal frames.

Drawings

FIG. 1 is a schematic top view of the present utility model;

fig. 2 is a schematic perspective view of a clamping unit in the present utility model;

FIG. 3 is a schematic perspective view of the inner clamping device and the inner support device of the present utility model;

FIG. 4 is a schematic perspective view of an outer clamping device according to the present utility model;

FIG. 5 is a schematic perspective view of a first clamping device according to the present utility model;

FIG. 6 is a schematic perspective view of a second clamping device according to the present utility model;

FIG. 7 is a schematic perspective view of a third clamping device and a first adjustment device according to the present utility model;

fig. 8 is a schematic perspective view of a fourth clamping device and a second adjusting device in the present utility model.

In the figure: 1. an X-direction moving seat; 2. an X-direction locking seat; 3. an X-direction locking hole; 4. an X-direction guide rail; 5. installing an operation table; 6. moving the portal frame; 7. a Y-direction guide rail; 8. an outer tightening structure; 9. an inner clamping device; 9-1, an inner clamping pressing plate; 9-2, an internal clamping cylinder; 10. y-direction moving seat; 11. an outer clamping device; 11-1, an outer clamping pressure plate; 11-2, an external clamping cylinder; 12. an inner support device; 12-1, a first internal stay cylinder; 12-2, a transition mounting plate; 12-3, a second internal stay cylinder; 12-4, an inner support positioning plate; 13. a first lower pressure cylinder; 14. a second pressing cylinder; 15. a first clamping device; 15-1, a first external splint; 15-2, a first backing plate; 15-3, a first clamping rail; 15-4, a first clamping cylinder; 15-5, a first inner clamping plate; 16. a second clamping device; 16-1, a second outer splint; 16-2, a second backing plate; 16-3, a second clamping rail; 16-4, a second clamping cylinder; 16-5, a second inner clamping plate; 17. a third clamping device; 17-1, a third internal clamping cylinder; 17-2, a third inner clamping rail; 17-3, a third inner splint; 17-4, a third external splint; 17-5, a third outer clamping rail; 17-6, a third external clamping cylinder; 18. a first adjusting device; 18-1, a first adjusting guide rail; 18-2, a first locking knob; 18-3, a first adjustment mounting plate; 19. a fourth clamping device; 19-1, a fourth internal clamping cylinder; 19-2, a fourth inner clamping rail; 19-3, a fourth inner clamping plate; 19-4, a fourth external splint; 19-5, fourth outer clamping rails; 19-6, a fourth external clamping cylinder; 20. a second adjusting device; 20-1, a second adjusting guide rail; 20-2, a second locking knob; 20-3, a second adjustment mounting plate; 21. and a Y-direction locking seat.

Detailed Description

For a further understanding of the utility model, its features and advantages, the following examples are set forth in detail:

referring to fig. 1, the automatic welding and clamping tool for chassis production of the present utility model includes a mounting operation table 5, two groups of moving gantry frames 6 with adjustable X-direction positions are mounted on the mounting operation table 5, two groups of Y-direction moving seats 10 with adjustable Y-direction positions are mounted on each moving gantry frame 6, and clamping units for clamping chassis walls are mounted on each Y-direction moving seat 10; the two ends of each movable portal frame 6 are provided with opposite outer propping structures 8, the movable portal frame 6 is provided with a second lower pressing cylinder 14 for pressing the chassis downwards, the extending end of the second lower pressing cylinder 14 is arranged downwards, and the extending end of the second lower pressing cylinder 14 is provided with a pressing piece.

Further, as shown in fig. 1, the embodiment further includes two sets of X-guide rails 4 fixedly connected to the mounting console 5 and disposed in a transverse direction, two sets of X-moving bases 1 are slidably connected to each of the X-guide rails 4 through a slider, and each of the moving gantry frames 6 is slidably connected to the X-guide rails 4 through the X-moving bases 1. An X-direction locking seat 2 is arranged on each X-direction moving seat 1, locking pin shafts are arranged on each X-direction locking seat 2, and a plurality of groups of X-direction locking holes 3 which are in plug-in fit with the locking pin shafts are formed in an installation operation table 5.

The Y-direction guide rails 7 which are transversely arranged are fixedly connected on each movable portal frame 6, each Y-direction movable seat 10 is in sliding connection with the Y-direction guide rails 7 through a sliding block, each Y-direction movable seat 10 is provided with a Y-direction locking seat 21, each Y-direction locking seat 21 is provided with a locking pin shaft, and a plurality of groups of positioning holes which are in plug-in fit with the locking pin shafts are formed in the movable portal frames 6.

Through the size adjustment clamping unit's of the quick-witted case that above-mentioned setting can produce as required X to position and Y to the position, and then make clamping unit be applicable to the electronic machine case of production different size, different models, improved clamping tooling's suitability.

With further reference to fig. 2, the clamping unit includes an outer clamping device 11 for clamping the outer side wall of the cabinet and an inner clamping device 9 for clamping the inner side wall of the cabinet, which are mounted on the Y-direction moving base 10. As shown in fig. 3, the inner clamping device 9 comprises an inner clamping cylinder 9-2 mounted on a Y-direction moving seat 10, and an inner clamping pressing plate 9-1 is mounted on the inner clamping cylinder 9-2; the inner clamping cylinder 9-2 can drive the inner clamping pressing plate 9-1 to turn over a certain angle. With further reference to fig. 4, the outer clamping device 11 includes an outer clamping cylinder 11-2 mounted on the Y-direction moving seat 10, and an outer clamping pressure plate 11-1 is mounted on the outer clamping cylinder 11-2; the outer clamping cylinder 11-2 can drive the outer clamping pressing plate 11-1 to turn over a certain angle. In the present embodiment, the inner clamping cylinder 9-2 and the outer clamping cylinder 11-2 each employ a decke clamping cylinder. The inner clamping pressing plate 9-1 and the outer clamping pressing plate 11-1 work together to clamp the sheet metal part.

As shown in fig. 1, the embodiment further comprises an inner supporting device 12 mounted on the inner clamping device 9 and capable of being clamped with the inner corner of the case. With further reference to fig. 3, the inner support device 12 comprises a first inner support cylinder 12-1 which is fixedly connected with the inner clamping pressing plate 9-1 and is transversely arranged at the extending end, a transition mounting plate 12-2 is arranged at the extending end of the first inner support cylinder 12-1, a second inner support cylinder 12-3 which is longitudinally arranged at the extending end is fixedly connected on the transition mounting plate 12-2, and an inner support positioning plate 12-4 is arranged at the extending end of the second inner support cylinder 12-3. The inner support positioning plate 12-4 is provided with a right angle matched with the inner right angle between two adjacent sheet metal parts, and the first inner support cylinder 12-1 and the second inner support cylinder 12-3 can move the position of the inner support positioning plate 12-4 under the combined action of the first inner support cylinder and the second inner support cylinder, so that the two adjacent sheet metal parts are positioned at right angles.

As shown in fig. 1, the outer tightening structure 8 comprises a guide rod cylinder which is transversely arranged at the extending end fixedly connected with the movable portal frame 6, and a clamping plate which can be in tightening contact with the outer side wall of the case is arranged at the extending end of the guide rod cylinder. Each outer propping structure 8 is arranged opposite to each inner supporting device 12, so that adjacent sheet metal parts can be propped up.

As shown in fig. 1, the present embodiment further includes a first pressing cylinder 13 mounted on the outer clamping device 11 for pressing down the sheet metal part, and the first pressing cylinder 13 adopts a rotary clamping cylinder and is disposed corresponding to the inner supporting device 12.

With further reference to fig. 1, a first clamping device 15, a second clamping device 16, a third clamping device 17 and a fourth clamping device 19 distributed in circumferential direction and connected to the mounting console 5 are arranged between the two sets of mobile gantry frames 6; further comprising first adjusting means 18 for adjusting the position of the third clamping means 17, second adjusting means 20 for adjusting the fourth clamping means 19; each clamping unit is located above each clamping device. Wherein the first clamping device 15 and the third clamping device 17 are arranged opposite to each other, and the second clamping device 16 and the fourth clamping device 19 are arranged opposite to each other. In the actual operation process, each clamping device combined action can carry out clamping operation to the lower part of each sheet metal part, each clamping unit can carry out clamping operation to the upper portion of each sheet metal part respectively, can carry out firm clamping operation to each sheet metal part through above-mentioned operation, avoids appearing the state of sheet metal part slope, avoids the sheet metal part to appear rocking in the welding process, has improved welded degree of accuracy.

As shown in fig. 5, the first clamping device 15 comprises a first outer clamping plate 15-1 and a first inner clamping plate 15-5 which are oppositely arranged, a first backing plate 15-2 fixedly connected with the installation operation table 5 is arranged between the first outer clamping plate 15-1 and the first inner clamping plate 15-5, the first outer clamping plate 15-1 is fixedly connected with the installation operation table 5, and the first outer clamping plate 15-1 is higher than and longer than the first inner clamping plate 15-5; the device further comprises a first clamping guide rail 15-3 which is fixedly connected on the installation operation table 5, is transversely arranged and perpendicular to the first outer clamping plate 15-1, the first inner clamping plate 15-5 is in sliding connection with the first clamping guide rail 15-3 through a sliding block, and the device further comprises a first clamping cylinder 15-4 which is used for driving the first inner clamping plate 15-5 to move along the first clamping guide rail 15-3.

As shown in fig. 6, the second clamping device 16 comprises a second outer clamping plate 16-1 and a second inner clamping plate 16-5 which are oppositely arranged, a second base plate 16-2 fixedly connected with the installation operation table 5 is arranged between the second outer clamping plate 16-1 and the second inner clamping plate 16-5, the second outer clamping plate 16-1 is fixedly connected with the installation operation table 5, the second outer clamping plate 16-1 is higher than and longer than the second inner clamping plate 16-5, the second clamping device further comprises a second clamping guide rail 16-3 fixedly connected on the installation operation table 5 and transversely arranged and perpendicular to the second outer clamping plate 16-1, and the second inner clamping plate 16-5 is in sliding connection with the second clamping guide rail 16-3 through a sliding block, and further comprises a second clamping cylinder 16-4 used for driving the second inner clamping plate 16-5 to move along the second clamping guide rail 16-3.

With further reference to fig. 7, the third clamping means 17 comprises a third inner clamping plate 17-3 and a third outer clamping plate 17-4 arranged opposite each other, the third outer clamping plate 17-4 being higher and longer than the third inner clamping plate 17-3; the third clamping device 17 further comprises a third inner clamping guide rail 17-2 and a third outer clamping guide rail 17-5 which are transversely arranged and perpendicular to the clamping plates, the third inner clamping plate 17-3 is in sliding connection with the third inner clamping guide rail 17-2 through a sliding block, the third outer clamping plate 17-4 is in sliding connection with the third outer clamping guide rail 17-5 through a sliding block, and the third clamping device further comprises a third inner clamping cylinder 17-1 connected with the third inner clamping plate 17-3 and a third outer clamping cylinder 17-6 connected with the third outer clamping plate 17-4.

As shown in fig. 7, the first adjusting device 18 includes a first adjusting rail 18-1 fixedly connected to the mounting console 5 and disposed parallel to the third inner clamping rail 17-2, a first adjusting mounting plate 18-3 slidably connected to the first adjusting rail 18-1 through a slider, and a first locking knob 18-2 mounted on the first adjusting mounting plate 18-3 for locking the position thereof.

With further reference to fig. 8, the fourth clamping means 19 comprises a fourth inner clamping plate 19-3 and a fourth outer clamping plate 19-4 arranged opposite each other, the fourth outer clamping plate 19-4 being higher and longer than the fourth inner clamping plate 19-3. The fourth clamping device 19 further comprises a fourth inner clamping guide rail 19-2 and a fourth outer clamping guide rail 19-5 which are transversely arranged and perpendicular to the clamping plates, the fourth inner clamping plate 19-3 is in sliding connection with the fourth inner clamping guide rail 19-2 through a sliding block, the fourth outer clamping plate 19-4 is in sliding connection with the fourth outer clamping guide rail 19-5 through a sliding block, and the fourth clamping device further comprises a fourth inner clamping cylinder 19-1 connected with the fourth inner clamping plate 19-3 and a fourth outer clamping cylinder 19-6 connected with the fourth outer clamping plate 19-4.

As shown in fig. 8, the second adjusting device 20 includes a second adjusting rail 20-1 fixedly connected to the mounting console 5 and disposed parallel to the fourth inner clamping rail 19-2, a second adjusting mounting plate 20-3 slidably connected to the second adjusting rail 20-1 through a slider, and a second locking knob 20-2 mounted on the second adjusting mounting plate 20-3 for locking the position thereof.

Through setting up first adjusting device 18 and second adjusting device 20, the X position of fourth clamping device 19 and the Y position of third clamping device 17 can be adjusted according to the size of the quick-witted case of production as required, and then make a plurality of clamping device combined actions applicable in producing the electronic machine case of different sizes, different models, improved the suitability of centre gripping frock.

The working process comprises the following steps:

(1) The two groups of movable portal frames 6 are respectively moved to the outer side of the second clamping device 16 and the outer side of the second adjusting device 20 so as to facilitate the respective clamping devices to preliminarily clamp the corresponding sheet metal parts, and the positions of the Y-direction movable seats 10 are adjusted along the Y-direction guide rail 7 according to the model size of the chassis to be produced; meanwhile, the clamping cylinders in each clamping unit drive the corresponding clamping pressing plates to turn upwards by a certain angle to a preset position so as to clamp the sheet metal part;

(2) According to the model size of the chassis to be produced, the X-direction position of the fourth clamping device 19 and the Y-direction position of the third clamping device 17 are adjusted, each sheet metal part is respectively inserted into the corresponding clamping device, and the lower part of each sheet metal part is primarily clamped by utilizing the inner clamping plate and the outer clamping plate which are arranged oppositely;

(3) Moving the portal frame 6 along the X-direction guide rail 4 so that each clamping unit moves to a position capable of clamping the corresponding sheet metal part, and simultaneously starting an inner clamping cylinder 9-2 and an outer clamping cylinder 11-2 in each clamping unit so that the inner clamping pressing plate 9-1 and the outer clamping pressing plate 11-1 clamp the upper part of the corresponding sheet metal part; simultaneously, the positions of the inner support positioning plates 12-4 are adjusted through the first inner support cylinder 12-1 and the second inner support cylinder 12-3, and the outer jacking structure 8 is matched, so that two right-angle edges of the inner support positioning plates 12-4 are respectively and tightly contacted with the inner side surfaces of two adjacent sheet metal parts in a jacking manner, and the two adjacent sheet metal parts are perpendicular to each other; it is noted that, when each clamping unit clamps the sheet metal part, if necessary, the clamping operation of the corresponding clamping device on the lower part of the sheet metal part can be loosened to adjust and improve the clamping operation on the sheet metal part; after the operation is finished, the sheet metal part is pressed downwards by the first lower pressing cylinder 13 and the second lower pressing cylinder 14;

(4) After each clamping unit and each clamping device carry out stable clamping operation on each sheet metal part, welding operation is carried out on adjacent sheet metal parts, and then a port frame structure of the case is formed, so that subsequent backboard installation operation is facilitated.

Claims

1. A automatic weld centre gripping frock for quick-witted case production, characterized by: the device comprises an installation operation table (5), wherein two groups of movable portal frames (6) with adjustable X-direction positions are installed on the installation operation table (5), two groups of Y-direction movable seats (10) with adjustable Y-direction positions are installed on each movable portal frame (6), and clamping units for clamping the walls of a chassis are installed on each Y-direction movable seat (10); the two ends of each movable portal frame (6) are provided with opposite outer propping structures (8), and the movable portal frames (6) are provided with second downward pressing cylinders (14) for pressing the chassis downwards;

a first clamping device (15), a second clamping device (16), a third clamping device (17) and a fourth clamping device (19) which are distributed according to the circumferential direction and are connected with the installation operation table (5) are arranged between the two groups of movable portal frames (6); the device also comprises a first adjusting device (18) for adjusting the position of the third clamping device (17), and a second adjusting device (20) for adjusting the fourth clamping device (19); each clamping unit is located above each clamping device.

2. The automatic welding clamping tool for chassis production of claim 1, wherein: the clamping unit comprises an outer clamping device (11) which is arranged on the Y-direction moving seat (10) and used for clamping the outer side wall of the case and an inner clamping device (9) which is used for clamping the inner side wall of the case; the inner supporting device (12) is arranged on the inner clamping device (9) and can be clamped with the inner angle of the case; the device also comprises a first pressing cylinder (13) which is arranged on the outer clamping device (11) and is used for pressing the sheet metal part downwards.

3. The automatic welding clamping tool for chassis production of claim 2, wherein: the inner clamping device (9) comprises an inner clamping cylinder (9-2) arranged on the Y-direction moving seat (10), and an inner clamping pressing plate (9-1) is arranged on the inner clamping cylinder (9-2); the inner clamping cylinder (9-2) can drive the inner clamping pressing plate (9-1) to turn over for a certain angle.

4. The automatic welding clamping tool for chassis production of claim 2, wherein: the outer clamping device (11) comprises an outer clamping cylinder (11-2) arranged on the Y-direction moving seat (10), and an outer clamping pressing plate (11-1) is arranged on the outer clamping cylinder (11-2); the outer clamping cylinder (11-2) can drive the outer clamping pressing plate (11-1) to turn over for a certain angle.

5. The automatic welding clamping tool for chassis production of claim 3, wherein: the inner supporting device (12) comprises a first inner supporting cylinder (12-1) which is fixedly connected with the inner clamping pressing plate (9-1) and is transversely arranged at the extending end, a transition mounting plate (12-2) is arranged at the extending end of the first inner supporting cylinder (12-1), a second inner supporting cylinder (12-3) with the extending end longitudinally arranged is fixedly connected on the transition mounting plate (12-2), and an inner supporting positioning plate (12-4) is arranged at the extending end of the second inner supporting cylinder (12-3).

6. The automatic welding clamping tool for chassis production of claim 2, wherein: the first clamping device (15) comprises a first outer clamping plate (15-1) and a first inner clamping plate (15-5) which are oppositely arranged, a first base plate (15-2) fixedly connected with the installation operation table (5) is arranged between the first outer clamping plate (15-1) and the first inner clamping plate (15-5), the first outer clamping plate (15-1) is fixedly connected with the installation operation table (5), the first clamping device further comprises a first clamping guide rail (15-3) fixedly connected with the installation operation table (5) and transversely arranged and perpendicular to the first outer clamping plate (15-1), the first inner clamping plate (15-5) is in sliding connection with the first clamping guide rail (15-3) through a sliding block, and the first clamping device further comprises a first clamping cylinder (15-4) used for driving the first inner clamping plate (15-5) to move along the first clamping guide rail (15-3); the second clamping device (16) comprises a second outer clamping plate (16-1) and a second inner clamping plate (16-5) which are oppositely arranged, a second base plate (16-2) fixedly connected with the installation operation table (5) is arranged between the second outer clamping plate (16-1) and the second inner clamping plate (16-5), the second outer clamping plate (16-1) is fixedly connected with the installation operation table (5), the second clamping device further comprises a second clamping guide rail (16-3) fixedly connected with the installation operation table (5) transversely and perpendicular to the second outer clamping plate (16-1), the second inner clamping plate (16-5) is in sliding connection with the second clamping guide rail (16-3) through a sliding block, and the second clamping device further comprises a second clamping air cylinder (16-4) used for driving the second inner clamping plate (16-5) to move along the second clamping guide rail (16-3).

7. The automatic welding clamping tool for chassis production of claim 1, wherein: the third clamping device (17) comprises a third inner clamping plate (17-3) and a third outer clamping plate (17-4) which are oppositely arranged, a third inner clamping guide rail (17-2) and a third outer clamping guide rail (17-5) which are transversely arranged and perpendicular to the clamping plates, the third inner clamping plate (17-3) is in sliding connection with the third inner clamping guide rail (17-2) through a sliding block, the third outer clamping plate (17-4) is in sliding connection with the third outer clamping guide rail (17-5) through a sliding block, and the third clamping device further comprises a third inner clamping cylinder (17-1) connected with the third inner clamping plate (17-3) and a third outer clamping cylinder (17-6) connected with the third outer clamping plate (17-4); the fourth clamping device (19) comprises a fourth inner clamping plate (19-3) and a fourth outer clamping plate (19-4) which are oppositely arranged, a fourth inner clamping guide rail (19-2) and a fourth outer clamping guide rail (19-5) which are transversely arranged and perpendicular to the clamping plates, the fourth inner clamping plate (19-3) is in sliding connection with the fourth inner clamping guide rail (19-2) through a sliding block, the fourth outer clamping plate (19-4) is in sliding connection with the fourth outer clamping guide rail (19-5) through a sliding block, and the fourth clamping device further comprises a fourth inner clamping cylinder (19-1) connected with the fourth inner clamping plate (19-3) and a fourth outer clamping cylinder (19-6) connected with the fourth outer clamping plate (19-4).

8. The automatic welding clamping tool for chassis production of claim 7, wherein: the first adjusting device (18) comprises a first adjusting guide rail (18-1) fixedly connected on the mounting operation table (5) and arranged in parallel with the third inner clamping guide rail (17-2), a first adjusting mounting plate (18-3) is connected on the first adjusting guide rail (18-1) in a sliding manner through a sliding block, and the first adjusting device further comprises a first locking knob (18-2) which is arranged on the first adjusting mounting plate (18-3) and used for locking the position of the first locking knob; the second adjusting device (20) comprises a second adjusting guide rail (20-1) fixedly connected on the installation operating platform (5) and arranged in parallel with the fourth inner clamping guide rail (19-2), a second adjusting installation plate (20-3) is connected on the second adjusting guide rail (20-1) in a sliding mode through a sliding block, and a second locking knob (20-2) which is installed on the second adjusting installation plate (20-3) and used for locking the position of the second adjusting installation plate.

9. The automatic welding clamping tool for chassis production of claim 1, wherein: the outer propping structure (8) comprises a guide rod cylinder which is transversely arranged at the extending end fixedly connected with the movable portal frame (6), and a clamping plate which can be in propping contact with the outer side wall of the case is arranged at the extending end of the guide rod cylinder.

10. The automatic welding clamping fixture for chassis production of any one of claims 1 to 9, wherein: the device also comprises two groups of X-direction guide rails (4) which are transversely arranged and fixedly connected on the installation operation table (5), wherein each X-direction guide rail (4) is connected with two groups of X-direction moving seats (1) in a sliding manner through a sliding block, and each movable portal frame (6) is connected with the X-direction guide rail (4) in a sliding manner through the X-direction moving seats (1); an X-direction locking seat (2) is arranged on each X-direction moving seat (1), a locking pin shaft is arranged on each X-direction locking seat (2), and a plurality of groups of X-direction locking holes (3) which are in plug-in fit with the locking pin shafts are formed in an installation operation table (5); y guide rails (7) which are transversely arranged are fixedly connected on each movable portal frame (6), each Y-direction movable seat (10) is in sliding connection with the Y guide rails (7) through a sliding block, each Y-direction movable seat (10) is provided with a Y-direction locking seat (21), each Y-direction locking seat (21) is provided with a locking pin shaft, and a plurality of groups of positioning holes which are in plug-in fit with the locking pin shafts are formed in the movable portal frames (6).