CN218363157U - Auxiliary pushing and clamping device for welding metal piece - Google Patents

Abstract

The utility model discloses a metalwork welding is with supplementary clamp pushing device, including first fixing base, the second fixing base, the third fixing base, the lateral adjustment subassembly, the location centre gripping subassembly, control assembly and weld the position adjustment subassembly, first, the second fixing base symmetry sets up, the lateral adjustment subassembly sets up between first, the second fixing base, weld the position adjustment subassembly and set up between second, the third fixing base, location centre gripping subassembly and control assembly quantity are two respectively and divide into two sets, one of them sets up on the lateral adjustment subassembly, another set sets up on welding the position adjustment subassembly; the utility model firstly uses the positioning and clamping component to fasten and clamp the metal pieces, then uses the transverse adjusting component to make the two metal pieces close to the contraposition, and finally controls the welding adjusting component to eliminate the position dislocation after the contraposition, thereby achieving the ideal welding position; compared with the equipment on the market, the device can realize fastening, pushing and clamping of irregular metal pieces, and can perform secondary adjustment after alignment, so that the welding effect is better.

Description

Auxiliary pushing and clamping device for welding metal piece

Technical Field

The application relates to the technical field of electromechanical machining equipment, in particular to an auxiliary pushing and clamping device for welding metal pieces.

Background

In the process of welding the metal piece, the stability of the metal piece directly determines the welding quality of the metal piece, and in order to improve the stability of the metal piece in the welding process, a tool clamp is mostly adopted to clamp the metal piece.

The patent application number is 201920773908.4's chinese utility model patent discloses a frock clamp for metal part welding, including operation panel, motor, rotation axis, shift ring, regulating plate, pneumatic cylinder, mounting plate and regulation pole, its characterized in that: the operation panel set up on the riser, the riser on be provided with the bearing, the locating plate on be provided with the constant head tank, the motor setting on the riser, rotation axis one end set up in the bearing, the shifting ring on be provided with the internal thread, the relative both sides of regulating plate all be provided with the connecting rod. The utility model discloses drive rotation axis forward or the antiport with the motor, it is rotatory to rotate the internal thread that epaxial external screw thread drove on the shift ring, makes the shift ring round trip movement on the rotation axis, drives the fixed plate and adjusts pole round trip movement, makes to adjust the pole and promotes the regulating plate and pass through the connecting rod at the locating plate internal rotation at the locating plate, adjusts the angle of mounting plate, makes the mounting plate carry out the centre gripping with different angles to the metalwork, improves the stability of metalwork in welding process.

The device can not carry out fine centre gripping fixedly to irregular metalwork, when the welding, needs two metalworks to counterpoint and handles, and because of the irregularity of two metalworks, leads to appearing the error after counterpointing, is difficult to adjust.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the purpose is: the utility model provides a metalwork welding is with supplementary clamp device that pushes away solves present equipment and can not carry out fine centre gripping fixed and the counterpoint after the error appears and be difficult to the adjustment problem to irregular metalwork.

The technical scheme of the utility model is that: an auxiliary pushing and clamping device for welding metal pieces comprises a first fixed seat, a second fixed seat, a third fixed seat, a transverse adjusting assembly, a positioning and clamping assembly, a control assembly and a welding position adjusting assembly, wherein the first fixed seat and the second fixed seat are symmetrically arranged, the transverse adjusting assembly is arranged between the first fixed seat and the second fixed seat, the welding position adjusting assembly is arranged between the second fixed seat and the third fixed seat, the number of the positioning and clamping assembly and the number of the control assembly are respectively two, one of the positioning and clamping assembly and the control assembly is arranged on the transverse adjusting assembly, and the other group of the positioning and clamping assembly and the control assembly are arranged on the welding position adjusting assembly;

the utility model discloses a positioning clamping subassembly, including the fixed block, the bearing ring of fixed block top is set up to the location centre gripping subassembly, be provided with first electric putter on the bearing ring, first electric putter's output is provided with the expansion piece, an end face of expansion piece is provided with porous cushion, one side of first electric putter is provided with laser sensor.

As the utility model provides a metalwork welding is with supplementary clamp device that pushes away preferred embodiment, seted up three dead slot on the carrier ring, the dead slot is the circumference array setting, be provided with the embedding piece in the dead slot, first electric putter sets up in the embedding piece, laser sensor fixes on the carrier ring on one side of first electric putter.

As the utility model provides a metalwork welding is with supplementary clamp device that pushes away preferred embodiment, control assembly includes mounting bracket, fixed box, controller and first battery, the outer wall of carrier ring is fixed with the mounting bracket, be provided with fixed box on the mounting bracket, be provided with controller and first battery in the fixed box, controller, first battery, laser sensor and first electric putter electric connection.

During the welding work of the metal piece, a worker needs to start the control assembly firstly, then holds the metal piece to the bearing ring, detects the metal piece by the laser sensor, determines the position distance between the surface of the metal piece and the laser sensor, and controls the propelling distance of the first electric push rod by the control assembly according to the measured distance so as to achieve stable pushing and clamping fixation; the method is a push-clamp fixing method of the metal piece in the first bearing ring, and correspondingly, the metal piece clamping step in the other bearing ring is the same as the above step.

When the first electric push rod pushes the metal piece, the porous cushion arranged at the pushing end of the first electric push rod firstly contacts with the metal piece and deforms under the action of force, so that the clamping is more stable; in addition, it should be noted that the laser sensor is installed on the bearing ring beside the first electric push rod, and has a certain distance with the first electric push rod, so that the laser sensor is not blocked by the first electric push rod when in operation.

The positioning and clamping assembly can be suitable for metal pieces in irregular shapes, the laser sensor is used for positioning the position distance between the surface of the metal piece and the first electric push rod, and the control assembly is used for controlling the specific propelling distance of the first electric push rod, so that the metal piece is fastened and pushed.

The utility model provides a metalwork welding is with supplementary clamp device that pushes away preferred embodiment, the lateral adjustment subassembly includes lead screw, rolling disc, driven piece and spacing horizontal pole, the lead screw rotates and sets up between first fixing base and second fixing base, spacing horizontal pole is fixed to be set up between first fixing base and second fixing base, the outer wall of lead screw and spacing horizontal pole is provided with the driven piece, the one end of lead screw is provided with the rolling disc, the rolling disc deviates from the lead screw position and is provided with the crank, the top of driven piece is provided with location centre gripping subassembly.

After the positioning and clamping assembly fixes the two metal parts, the two metal parts need to be aligned, and a worker holds the crank to rotate so as to control the transverse movement of the driven block, so that the two metal parts gradually approach each other. The transverse adjusting component can be used for aligning metal pieces with different lengths, and is simple and convenient to operate.

The utility model provides a metalwork welding is with supplementary clamp device that pushes away preferred embodiment, weld the position adjustment subassembly including setting up the diaphragm between second fixing base and third fixing base and set up the lower storehouse of hanging of diaphragm bottom terminal surface, hang down and be provided with second electric putter and second battery in the storehouse, second electric putter's output is provided with the loading board, loading board top terminal surface is provided with the slide rail, it is provided with the sliding block to slide on the slide rail, the top of sliding block is provided with location centre gripping subassembly.

After the transverse adjusting assembly realizes the alignment of the two metal pieces, the welding position adjusting assembly is required to adjust the dislocation position due to the fact that the positioning clamping assembly has different axial directions after fixing the irregular metal piece (compared with the axial direction of steel pipe clamping alignment welding, the irregular metal piece has alignment errors under the pushing and clamping of the positioning clamping assembly, and therefore dislocation and inconsistency of a welding surface and poor welding effect are caused); and the second electric push rod is started to control the longitudinal displacement of the positioning and clamping assembly, and the sliding block is used for controlling the horizontal movement of the positioning and clamping assembly.

The setting of lateral adjustment subassembly makes the error of metalwork counterpoint formation accomplish quick adjustment, and welding effect is better when welding this moment again, and is efficient.

As the utility model provides a metalwork welding is with supplementary clamp device that pushes away preferred embodiment, the both sides of sliding block are provided with the stationary blade, the quantity of stationary blade is four and uses two liang to set up for a set of symmetry, set up porosely on the stationary blade, downthehole bolt that is provided with, the top end face of diaphragm seted up with bolt complex locating hole.

As the utility model provides a metalwork welding is with supplementary push away press from both sides device a preferred embodiment, the quantity of locating hole is a plurality of and horizontal array setting.

As the utility model provides a metalwork welding is with supplementary clamp device that pushes away preferred embodiment, the both ends of slide rail are provided with the limiting plate, the four corners department of loading board sets up porosely, downthehole spacing montant that is provided with, the bottom and the diaphragm of spacing montant are fixed.

The sliding block can be fixed by the matching of the bolt and the positioning hole after horizontally sliding, so that the sliding of the positioning and clamping assembly during welding after adjustment is avoided; the limiting plate carries on spacingly to the sliding distance of sliding block, and spacing montant is used for the stability that the reinforcing carrier block removed.

Compared with the prior art, the beneficial effects of the utility model are that:

when the utility model is used for the contraposition welding work of irregular metal pieces, the positioning clamping assembly is firstly used for fastening and clamping the metal pieces, then the transverse adjusting assembly is used for making the two metal pieces close to contraposition, and finally the welding adjusting assembly is controlled to eliminate the position dislocation after contraposition, thereby achieving the ideal welding position; compared with the equipment on the market, the device can realize fastening, pushing and clamping of the irregular metal piece, and secondary adjustment is carried out after alignment so as to eliminate alignment errors, so that the welding effect is better.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a first perspective view and a position of a in the figure of the present invention;

FIG. 2 is an enlarged view of A in FIG. 1;

fig. 3 is a schematic structural view of a second perspective view and a position of B in the figure according to the present invention;

FIG. 4 is an enlarged schematic structural view of the location B in FIG. 3;

fig. 5 is a schematic structural view of the positioning and clamping assembly of the present invention;

FIG. 6 is a schematic view of the welding position adjusting assembly of the present invention;

wherein: 1. a first fixed seat; 2. a second fixed seat; 3. a third fixed seat; 4. a lateral adjustment assembly; 5. positioning the clamping assembly; 6. a control component; 7. a welding position adjusting assembly; 401. a lead screw; 402. rotating the disc; 403. a crank; 404. a driven block; 405. a limiting cross bar; 501. a fixed block; 502. a load ring; 503. embedding a block; 504. a first electric push rod; 505. expanding slices; 506. a porous cushion; 507. a laser sensor; 601. a mounting frame; 602. a fixing box; 603. a controller; 604. a first storage battery; 701. a transverse plate; 702. hanging a bin; 703. a second electric push rod; 704. a second storage battery; 705. a carrier plate; 706. a slide rail; 707. a slider; 708. a fixing sheet; 709. a bolt; 710. positioning holes; 711. a limiting plate; 712. limiting vertical rods.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

As described in the background art, the existing equipment has the problems that the irregular metal piece cannot be well clamped and fixed, and errors are difficult to adjust after alignment.

In order to solve the technical problem, the utility model discloses the people has provided a metalwork welding is with supplementary clamp device that pushes away.

Specifically, as shown in fig. 1-6, the welding device includes a first fixing seat 1, a second fixing seat 2, a third fixing seat 3, a transverse adjustment assembly 4, a positioning clamping assembly 5, a control assembly 6 and a welding position adjustment assembly 7, wherein the first fixing seat 1 and the second fixing seat 2 are symmetrically arranged, the transverse adjustment assembly 4 is arranged between the first fixing seat 1 and the second fixing seat 2, the welding position adjustment assembly 7 is arranged between the second fixing seat 2 and the third fixing seat 3, the number of the positioning clamping assembly 5 and the number of the control assembly 6 are respectively two and divided into two groups, one group is arranged on the transverse adjustment assembly 4, and the other group is arranged on the welding position adjustment assembly 7; the positioning and clamping assembly 5 comprises a fixing block 501 and a bearing ring 502 arranged on the top of the fixing block 501, a first electric push rod 504 is arranged on the bearing ring 502, an expansion piece 505 is arranged at the output end of the first electric push rod 504, a porous cushion 506 is arranged on one end face of the expansion piece 505, and a laser sensor 507 is arranged on one side of the first electric push rod 504.

When the utility model is used for the contraposition welding work of irregular metal pieces, the positioning clamping component 5 is firstly used for fastening and clamping the metal pieces, then the transverse adjusting component 4 makes the two metal pieces close to contraposition, and finally the welding adjusting component is controlled to eliminate the position dislocation after contraposition, thereby achieving the ideal welding position; compared with the equipment on the market, the device can realize fastening, pushing and clamping of the irregular metal piece, and secondary adjustment is carried out after alignment so as to eliminate alignment errors, so that the welding effect is better.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them.

Thus, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the invention as claimed, but is merely representative of some embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that, in the present invention, the embodiments and the features and technical solutions in the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

Example 1

As shown in fig. 1, 3, 4, and 5, an auxiliary push clamp device for welding a metal piece includes a first fixing seat 1, a second fixing seat 2, a third fixing seat 3, a lateral adjustment assembly 4, a positioning clamp assembly 5, a control assembly 6, and a welding position adjustment assembly 7, wherein the first fixing seat 1 and the second fixing seat 2 are symmetrically disposed, the lateral adjustment assembly 4 is disposed between the first fixing seat 1 and the second fixing seat 2, the welding position adjustment assembly 7 is disposed between the second fixing seat 2 and the third fixing seat 3, the number of the positioning clamp assembly 5 and the number of the control assembly 6 are two and divided into two groups, one group is disposed on the lateral adjustment assembly 4, and the other group is disposed on the welding position adjustment assembly 7; the positioning and clamping assembly 5 comprises a fixing block 501 and a bearing ring 502 arranged on the top of the fixing block 501, a first electric push rod 504 is arranged on the bearing ring 502, an expansion piece 505 is arranged at the output end of the first electric push rod 504, a porous cushion 506 is arranged on one end face of the expansion piece 505, and a laser sensor 507 is arranged on one side of the first electric push rod 504.

Specifically, three empty grooves are formed in the bearing ring 502, the empty grooves are arranged in a circumferential array, an embedding block 503 is arranged in each empty groove, the first electric push rod 504 is arranged in the embedding block 503, and the laser sensor 507 is fixed on the bearing ring 502 on one side of the first electric push rod 504. The control assembly 6 comprises a mounting frame 601, a fixing box 602, a controller 603 and a first storage battery 604, the mounting frame 601 is fixed on the outer wall of the bearing ring 502, the fixing box 602 is arranged on the mounting frame 601, the controller 603 and the first storage battery 604 are arranged in the fixing box 602, and the controller 603, the first storage battery 604, the laser sensor 507 and the first electric push rod 504 are electrically connected.

During the welding of the metal piece, a worker needs to start the control assembly 6, then holds the metal piece in the bearing ring 502, detects the metal piece by the laser sensor 507, determines the position distance between the surface of the metal piece and the laser sensor 507, and controls the pushing distance of the first electric push rod 504 according to the measured distance by the control assembly 6, so as to achieve stable pushing and clamping; this is the push-clip retention of the metal pieces in the first load ring 502, and correspondingly, the metal piece retention steps in the other load ring 502 are the same as described above.

During the process that the first electric push rod 504 pushes the metal member, the porous cushion 506 installed at the pushing end of the first electric push rod contacts with the metal member first and deforms under the action of force, so that the clamping is more stable; in addition, it should be noted that the laser sensor 507 is installed on the bearing ring 502 beside the first electric putter 504 and is located at a certain distance from the first electric putter 504, so that the laser sensor 507 is not blocked by the first electric putter 504 during operation.

Example 2

As shown in fig. 1, 2, and 6, the lateral adjustment assembly 4 includes a screw 401, a rotating disc 402, a driven block 404, and a limiting cross bar 405, the screw 401 is rotatably disposed between the first fixing seat 1 and the second fixing seat 2, the limiting cross bar 405 is fixedly disposed between the first fixing seat 1 and the second fixing seat 2, driven blocks 404 are disposed on outer walls of the screw 401 and the limiting cross bar 405, the rotating disc 402 is disposed at one end of the screw 401, a crank 403 is disposed at a position of the rotating disc 402 away from the screw 401, and a positioning and clamping assembly 5 is disposed at a top of the driven blocks 404.

The welding position adjusting assembly 7 comprises a transverse plate 701 arranged between the second fixing seat 2 and the third fixing seat 3 and a lower hanging bin 702 arranged on the bottom end face of the transverse plate 701, a second electric push rod 703 and a second storage battery 704 are arranged in the lower hanging bin 702, a bearing plate 705 is arranged at the output end of the second electric push rod 703, a sliding rail 706 is arranged on the top end face of the bearing plate 705, a sliding block 707 is arranged on the sliding rail 706 in a sliding mode, and a positioning clamping assembly 5 is arranged at the top of the sliding block 707.

Specifically, the two sides of the sliding block 707 are provided with fixing plates 708, the number of the fixing plates 708 is four, and two of the fixing plates 708 are symmetrically arranged in a group, a hole is formed in each fixing plate 708, a bolt 709 is arranged in the hole, and a positioning hole 710 matched with the bolt 709 is formed in the top end face of the transverse plate 701. The number of the positioning holes 710 is several and arranged in a horizontal array. Limiting plates 711 are arranged at two ends of the sliding rail 706, holes are formed in four corners of the bearing plate 705, limiting vertical rods 712 are arranged in the holes, and the bottoms of the limiting vertical rods 712 are fixed with the transverse plate 701.

After the positioning and clamping assembly 5 finishes fixing the two metal parts, the two metal parts need to be aligned, and the operator holds the crank 403 to rotate so as to control the transverse movement of the driven block 404, so that the two metal parts gradually approach each other. The transverse adjusting component 4 can be used for aligning metal pieces with different lengths, and is simple and convenient to operate.

After the transverse adjusting assembly 4 realizes the alignment of the two metal pieces, the welding position adjusting assembly 7 is needed to adjust the dislocation position due to the fact that the positioning clamping assembly 5 has different axial directions after fixing the irregular metal piece (compared with the axial direction of steel pipe clamping alignment welding, the irregular metal piece has alignment errors under the pushing and clamping of the positioning clamping assembly 5, and thus the welding surface is dislocated and inconsistent, and the welding effect is poor); the second electric push rod 703 is activated to control the longitudinal displacement of the positioning and clamping assembly 5, and the sliding block 707 is used to control the horizontal movement of the positioning and clamping assembly 5.

After the sliding block 707 horizontally slides, the bolt 709 can be matched with the positioning hole 710 to fix the sliding block, so that the positioning and clamping component 5 is prevented from sliding during welding after adjustment; the limiting plate 711 limits the sliding distance of the sliding block 707, and the limiting vertical rod 712 is used for enhancing the moving stability of the bearing block.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (8)

1. The utility model provides a metalwork welding is with supplementary clamp device that pushes away, includes first fixing base (1), second fixing base (2), third fixing base (3), horizontal adjusting part (4), location centre gripping subassembly (5), control assembly (6) and welds position adjusting part (7), its characterized in that: the first fixing seat (1) and the second fixing seat (2) are symmetrically arranged, the transverse adjusting assembly (4) is arranged between the first fixing seat (1) and the second fixing seat (2), the welding position adjusting assembly (7) is arranged between the second fixing seat (2) and the third fixing seat (3), the number of the positioning clamping assemblies (5) and the number of the control assemblies (6) are respectively two, the positioning clamping assemblies are divided into two groups, one group is arranged on the transverse adjusting assembly (4), and the other group is arranged on the welding position adjusting assembly (7);

location centre gripping subassembly (5) include fixed block (501) and set up bearing ring (502) at fixed block (501) top, be provided with first electric putter (504) on bearing ring (502), the output of first electric putter (504) is provided with expansion piece (505), an end face of expansion piece (505) is provided with porous cushion (506), one side of first electric putter (504) is provided with laser sensor (507).

2. The auxiliary pushing and clamping device for welding the metal piece according to claim 1, wherein the bearing ring (502) is provided with three empty grooves, the empty grooves are arranged in a circumferential array, embedding blocks (503) are arranged in the empty grooves, the first electric push rod (504) is arranged in the embedding blocks (503), and the laser sensor (507) is fixed on the bearing ring (502) on one side of the first electric push rod (504).

3. The auxiliary pushing and clamping device for metal piece welding according to claim 1, wherein the control assembly (6) comprises a mounting frame (601), a fixing box (602), a controller (603) and a first storage battery (604), the mounting frame (601) is fixed to the outer wall of the bearing ring (502), the fixing box (602) is arranged on the mounting frame (601), the controller (603) and the first storage battery (604) are arranged in the fixing box (602), and the controller (603), the first storage battery (604), the laser sensor (507) and the first electric push rod (504) are electrically connected.

4. The auxiliary push clamp device for metal piece welding according to claim 1, wherein the transverse adjusting assembly (4) comprises a lead screw (401), a rotating disc (402), a driven block (404) and a limiting cross rod (405), the lead screw (401) is rotatably arranged between the first fixing seat (1) and the second fixing seat (2), the limiting cross rod (405) is fixedly arranged between the first fixing seat (1) and the second fixing seat (2), the driven block (404) is arranged on the outer walls of the lead screw (401) and the limiting cross rod (405), the rotating disc (402) is arranged at one end of the lead screw (401), a crank (403) is arranged at a position where the rotating disc (402) deviates from the lead screw (401), and a positioning clamping assembly (5) is arranged at the top of the driven block (404).

5. The auxiliary pushing and clamping device for metal piece welding according to claim 1, wherein the welding position adjusting assembly (7) comprises a transverse plate (701) arranged between the second fixing seat (2) and the third fixing seat (3) and a lower hanging bin (702) arranged on the bottom end face of the transverse plate (701), a second electric push rod (703) and a second storage battery (704) are arranged in the lower hanging bin (702), a bearing plate (705) is arranged at the output end of the second electric push rod (703), a sliding rail (706) is arranged on the top end face of the bearing plate (705), a sliding block (707) is slidably arranged on the sliding rail (706), and a positioning and clamping assembly (5) is arranged on the top of the sliding block (707).

6. The auxiliary pushing and clamping device for metal piece welding as claimed in claim 5, wherein two sides of the sliding block (707) are provided with fixing pieces (708), the number of the fixing pieces (708) is four, the fixing pieces (708) are symmetrically arranged in pairs as a group, the fixing pieces (708) are provided with holes, the holes are provided with bolts (709), and the top end surface of the transverse plate (701) is provided with positioning holes (710) matched with the bolts (709).

7. The auxiliary pushing and clamping device for welding metal pieces as claimed in claim 6, wherein the number of the positioning holes (710) is several and the positioning holes are horizontally arranged in an array.

8. The auxiliary pushing and clamping device for welding metal pieces according to claim 5, wherein limiting plates (711) are arranged at two ends of the sliding rail (706), holes are formed in four corners of the bearing plate (705), a limiting vertical rod (712) is arranged in each hole, and the bottom of the limiting vertical rod (712) is fixed to the transverse plate (701).

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