CN215824695U

CN215824695U - Welding tool clamp

Info

Publication number: CN215824695U
Application number: CN202122438757.7U
Authority: CN
Inventors: 许乐
Original assignee: Jingzhou Xinhong Metal Products Co ltd
Current assignee: Jingzhou Xinhong Metal Products Co ltd
Priority date: 2021-10-09
Filing date: 2021-10-09
Publication date: 2022-02-15
Anticipated expiration: 2031-10-09

Abstract

The utility model relates to the field of welding tool fixtures, and discloses a welding tool fixture which comprises a bottom plate, a first clamping mechanism and a second clamping mechanism, wherein the first clamping mechanism and the second clamping mechanism are arranged on the bottom plate, the first clamping mechanism comprises a first mounting plate arranged on the bottom plate, a first driving cylinder horizontally arranged on the first mounting plate, a first pressing assembly driven by the first driving cylinder and a first abutting piece, and the second clamping mechanism comprises a second mounting plate arranged on the bottom plate, a second driving cylinder vertically arranged on the second mounting plate, a second pressing assembly driven by the second driving cylinder and a second abutting piece. The first clamping mechanism and the second clamping mechanism are arranged, driving force is provided by the first driving cylinder and the second driving cylinder respectively, labor is saved, enough pressing force is applied to the supporting frame and the connecting frame to fix the positions of the supporting frame and the connecting frame, accurate welding of the supporting frame and the connecting frame is facilitated, and the qualified rate and the production efficiency of finished products are improved.

Description

Welding tool clamp

Technical Field

The utility model relates to the technical field of welding tool fixtures, in particular to a welding tool fixture.

Background

Welding is a processing method commonly used in industrial production, also called fusion welding, and joins metals or other thermoplastic materials by heating, high temperature, or high pressure, in which the metal joint is melted to cause an irreversible change in shape, and therefore, if welding is not performed accurately in processing, rework is difficult and a defective product is produced. In actual processing, workpieces to be welded are different in shape and not simply flat, so that a welding tool clamp for positioning the positions of the workpieces needs to be designed correspondingly for different workpieces, the workpieces are placed on stations of the welding tool clamp and clamped and fixed before welding, and then welding is performed, so that the accuracy of welding processing is guaranteed, the qualified rate of finished products is improved, and the welding tool clamp is a widely used tool for assisting welding in industrial production and processing.

The automobile guard plate support is a part for fixing and protecting some important parts in an automobile, and as shown in fig. 5, the automobile guard plate support is one type of the automobile guard plate support and comprises two parts, namely a connecting frame 28 and a supporting frame 29, after the two parts are produced respectively in actual processing, the two parts need to be welded to obtain a finished product, and the existing welding tool clamp for welding the automobile guard plate support needs to be manually operated, so that labor is consumed, and the welding accuracy is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a welding tool clamp, and aims to solve the problems of labor consumption and poor welding accuracy.

The technical purpose of the utility model is realized by the following technical scheme:

the utility model provides a welding frock clamp, include the bottom plate and set up in first fixture and second fixture on the bottom plate, first fixture including set up in first mounting panel, horizontal installation on the bottom plate in first actuating cylinder on the first mounting panel, by first actuating cylinder driven first compress tightly subassembly and first butt piece, second fixture including set up in second mounting panel on the bottom plate, vertical install in second actuating cylinder on the second mounting panel, by second actuating cylinder driven second compresses tightly subassembly and second butt piece.

According to the technical scheme, when the support frame and the connecting frame need to be welded, the first clamping mechanism and the second clamping mechanism are started, the first clamping mechanism clamps the connecting frame, the first driving cylinder drives the first pressing assembly to press the connecting frame, and two sides of the connecting frame abut against the first pressing assembly and the first abutting part; the second fixture carries out the centre gripping to the support frame, and the second actuating cylinder drive second compresses tightly the subassembly and compresses tightly the support frame, and the both sides and the second of support frame compress tightly subassembly and second butt piece and offset, so with the rigidity of support frame and link, later reuse welding equipment to weld and make the finished product. Wherein, set up first fixture and second fixture, provided drive power by first actuating cylinder and second actuating cylinder respectively, use manpower sparingly, and apply sufficient packing force to support frame and link and make its rigidity, be convenient for carry out accurate welding to it, improve finished product qualification rate and production efficiency. For improving first fixture and second fixture installation stability, can be L shape with first mounting panel, second mounting panel, first butt piece and the setting of second butt piece, improve the stability of its position.

It should be understood that the first driving cylinder and the second driving cylinder may be a pneumatic cylinder, a hydraulic cylinder, or other devices with equivalent functions, and the actuation of the first driving rod and the second driving cylinder may be controlled by a pneumatic cylinder controller, and the connection, signal transmission, and control of the pneumatic cylinder controller and the first driving cylinder and the second driving cylinder are all prior art, so that the scope of the actual protection claimed by the present application will not be affected by those skilled in the art even though they are not described in detail.

The utility model is further provided with: first compressing tightly the subassembly including the first actuating lever and the first body that compresses tightly that are L shape, the one end of first actuating lever with the drive shaft lateral part of first actuating cylinder links to each other, and the other end has been seted up connection breach and has been opened relatively and be equipped with two connecting holes, the one end of the first body that compresses tightly is located connect in the breach and seted up waist shape hole, the middle part with first butt piece is articulated mutually, the other end with first butt piece is relative, still includes connecting bolt, connecting bolt passes one in proper order the connecting hole waist shape hole and another the connecting hole.

Through foretell technical scheme, start first actuating cylinder, the drive shaft of first actuating cylinder carries out horizontal motion, drives first actuating lever horizontal motion, later drives first compressor body swing, places the link in between first compressor body and the first butt piece, then first compressor body swing to certain extent, and the both sides of link offset and are pressed from both sides tightly with first compressor body and first butt piece. Wherein, having set up the first subassembly that compresses tightly, having realized compressing tightly the function to the link, no structure stops when placing the work piece, is convenient for place and uses manpower sparingly.

The utility model is further provided with: the connecting bolt comprises a connecting inner core and a wear-resistant outer ring which is rotatably arranged on the outer wall of the connecting inner core, the wear-resistant outer ring is in contact with the inner wall of the waist-shaped hole, and two ends of the connecting inner core are connected with the two connecting holes.

Through foretell technical scheme, wear-resisting outer loop can reduce the frictional force between connecting bolt and the waist shape downthehole wall to improve its incorruptibility.

The utility model is further provided with: a first guide hole is horizontally formed in the first abutting piece, a driving shaft of the first driving cylinder is connected with a first guide column which movably penetrates through the first guide hole, and a first accommodating groove used for accommodating the first guide column is formed in one end, opposite to the first abutting piece, of the first pressing body.

Through foretell technical scheme, start first actuating cylinder, the drive shaft carries out horizontal motion, moves to a certain extent, then first guide post passes the hole of seting up on the link, so can further fix the position of link to further guaranteed the welding accuracy, and first actuating cylinder can drive the motion of first guide post and first compression body simultaneously, need not to set up the actuating cylinder respectively, thereby saving equipment input reduces the cost.

The utility model is further provided with: the lateral part that first guide post is close to the one end of first driving cylinder be provided with the limiting plate that first butt piece offseted, the drive shaft of first driving cylinder seted up with the movable groove of first guide post activity laminating still includes the butt spring, the both ends of butt spring respectively with first guide post with the movable groove links to each other.

Through the technical scheme, under the driving of the first driving cylinder, the first guide column penetrates through the first abutting part, at the moment, the connecting frame can be attached to the first abutting part, the first guide column penetrates through the hole formed in the connecting frame, the limiting plate abuts against the first abutting part, the first driving cylinder continues to drive, the position of the first guide column is unchanged, and the first pressing body continues to horizontally swing until the first guide column is pressed onto the first connecting frame. Wherein, having set up limiting plate, activity groove and butt spring, then having made first guide post pass the hole of seting up on the link and compressed tightly again, thereby guarantee the performance of first guide post positioning action and can further improve the welding accuracy.

The utility model is further provided with: the device is characterized by further comprising a placing block arranged on the bottom plate, and a positioning groove penetrating through two sides of the placing block is formed in a top plate of the placing block.

Through foretell technical scheme, can place the link on arranging the constant head tank in, place setting up of piece and provide the department of placing for the link, the setting of constant head tank is spacing to the position that the link was placed, and the direction of the first guide post of cooperation and the first body that compresses tightly compress tightly, can guarantee the stability of the position of link, make it also can not take place to slide in welding process to further guarantee welding process's accuracy.

The utility model is further provided with: the second pressing assembly comprises a second driving rod hinged to the top of a driving shaft of the second driving cylinder and a connecting body, the two ends of the connecting body are hinged to the middle of the second driving rod and the second mounting plate, and a plurality of second pressing bodies opposite to the second abutting pieces are arranged at one end, far away from the second driving cylinder, of the second driving rod.

Through foretell technical scheme, start the second actuating cylinder, the drive shaft of second actuating cylinder carries out vertical up-and-down motion, drives the vertical motion of second actuating lever, then drives the second and compresses tightly the body motion, places the support frame between the second compresses tightly body and second butt piece, then the second compresses tightly the body motion to a certain extent, and the both sides of support frame and second compress tightly the body and the second butt piece offsets and is pressed from both sides tightly. The second pressing assembly is arranged, the function of pressing the supporting frame is achieved, no structure is used for blocking when the workpiece is placed, and the workpiece placing device is convenient to place and saves manpower.

The utility model is further provided with: the top of second butt piece is provided with a plurality of second guide post, the second clamp body with the second butt piece relative one end is seted up and is held the second holding tank of second guide post.

Through foretell technical scheme, place the support frame in the top of second butt piece earlier, make second guide post (more than or equal to two) pass the hole of seting up on the support frame, so can pinpoint the position of support frame, and guarantee the stability of support frame position, make it also can not take place to slide when welding process to further guarantee welding process's accuracy.

The utility model is further provided with: the top of the second mounting plate is provided with a limiting part of which the top is provided with a limiting opening, and three sides of the second driving rod are attached to the inner wall of the limiting opening.

Through foretell technical scheme, the locating part can carry out spacingly to the motion route of second actuating lever especially the position of place when being close the support frame, guarantees the position when pressing the body to the support frame with the second that its tip links to each other, prevents to press the condition emergence that influences the function when deviating from the time.

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

1. the first clamping mechanism and the second clamping mechanism are arranged, driving force is provided by the first driving cylinder and the second driving cylinder respectively, labor is saved, enough pressing force is applied to the supporting frame and the connecting frame to fix the positions of the supporting frame and the connecting frame, accurate welding of the supporting frame and the connecting frame is facilitated, and the qualified rate and the production efficiency of finished products are improved;

2. the first pressing component and the second pressing component are arranged, the first pressing component and the second pressing component realize the pressing function of the connecting frame and the supporting frame, no structure is blocked when a workpiece is placed, the placing is convenient, and the labor is saved;

3. the first guide post and the second guide post are arranged to further fix the positions of the connecting frame and the support frame, so that the position stability of the connecting frame and the support frame is ensured, the connecting frame and the support frame cannot slide during welding, and the accuracy of welding is further ensured; by arranging the limiting plate, the movable groove and the abutting spring, the first guide post can be pressed after penetrating through the hole formed in the connecting frame, and the positioning effect of the first guide post is ensured, so that the welding accuracy can be further improved;

4. through setting up a first actuating cylinder, drive the motion of first guide post and first clamp body simultaneously, need not to set up the actuating cylinder respectively, thereby save equipment input reduce cost.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic illustration of the present invention in operation;

FIG. 3 is a cross-sectional view of the present invention in operation;

FIG. 4 is an enlarged view at A in FIG. 3;

FIG. 5 is a schematic view of the structure of the fender bracket of the automobile.

In the figure, 1, a bottom plate; 2. a first mounting plate; 3. a first drive cylinder; 4. a first hold-down assembly; 4a, a first driving rod; 4b, a first compression body; 5. a first abutting member; 6. a second mounting plate; 7. a second drive cylinder; 8. a second hold-down assembly; 8a, a second driving rod; 8b, a linker; 9. a second abutting member; 10. a connecting gap; 11. connecting holes; 12. a waist-shaped hole; 13. connecting a bolt; 13a, connecting the inner core; 13b, a wear-resistant outer ring; 14. a first guide hole; 15. a first guide post; 16. a first accommodating groove; 17. a limiting plate; 18. a movable groove; 19. an abutment spring; 20. placing the blocks; 21. positioning a groove; 22. a second compression body; 23. a second guide post; 24. a second accommodating groove; 25. a limiting port; 26. a limiting member; 28. a connecting frame; 29. a support frame.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.

The welding tool fixture provided by the utility model comprises a bottom plate 1, and a first clamping mechanism and a second clamping mechanism which are arranged on the bottom plate 1, as shown in fig. 1 to 5, wherein the first clamping mechanism comprises a first mounting plate 2 arranged on the bottom plate 1, a first driving cylinder 3 horizontally arranged on the first mounting plate 2, a first pressing component 4 driven by the first driving cylinder 3 and a first abutting piece 5, and the second clamping mechanism comprises a second mounting plate 6 arranged on the bottom plate 1, a second driving cylinder 7 vertically arranged on the second mounting plate 6, a second pressing component 8 driven by the second driving cylinder 7 and a second abutting piece 9.

The use process comprises the following steps: when the support frame 29 and the connecting frame 28 need to be welded, a first clamping mechanism and a second clamping mechanism are started, the first clamping mechanism clamps the connecting frame 28, the first driving cylinder 3 drives the first pressing component 4 to press the connecting frame 28, and two sides of the connecting frame 28 abut against the first pressing component 4 and the first abutting part 5; the second clamping mechanism clamps the support frame 29, the second driving cylinder 7 drives the second pressing component 8 to press the support frame 29, two sides of the support frame 29 abut against the second pressing component 8 and the second abutting part 9, the support frame 29 and the connecting frame 28 are fixed in position, and then welding equipment is used for welding to obtain a finished product. Wherein, set up first fixture and second fixture, provided drive power by first actuating cylinder 3 and second actuating cylinder 7 respectively, use manpower sparingly, and exert sufficient packing force to support frame 29 and link 28 and make its rigidity, be convenient for carry out the accuracy welding to it, improve finished product qualification rate and production efficiency.

It should be understood that the first driving cylinder 3 and the second driving cylinder 7 can be a pneumatic cylinder, a hydraulic cylinder, or other devices with equivalent functions, and the actuation of the first driving rod 4a and the second driving cylinder 7 can be controlled by a pneumatic cylinder controller as in the prior art, and the connection, signal transmission, and control of the pneumatic cylinder controller and the first driving cylinder 3 and the second driving cylinder 7 are all in the prior art, so that the scope of protection actually claimed by the present application will not be affected even if not described.

The first pressing component 4 comprises an L-shaped first driving rod 4a and a first pressing body 4b, one end of the first driving rod 4a is connected with the side part of the driving shaft of the first driving cylinder 3, the other end of the first driving rod 4a is provided with a connecting gap 10 and is provided with two opposite connecting holes 11, one end of the first pressing body 4b is positioned in the connecting gap 10 and is provided with a waist-shaped hole 12, the middle part of the first pressing body is hinged with the first abutting part 5, the other end of the first pressing body is opposite to the first abutting part 5, the first pressing component further comprises a connecting bolt 13, the connecting bolt 13 sequentially penetrates through one connecting hole 11, the waist-shaped hole 12 and the other connecting hole 11, the first driving cylinder 3 is started, the driving shaft of the first driving cylinder 3 carries out horizontal motion to drive the first driving rod 4a to horizontally move, then the first pressing body 4b is driven to swing, and the connecting frame 28 is placed between the first pressing body 4b and the first abutting part 5, the first presser body 4b swings to a certain extent and both sides of the connecting frame 28 are clamped against the first presser body 4b and the first abutment 5. Wherein, having set up first subassembly 4 that compresses tightly, having realized carrying out the function that compresses tightly to link 28, no structure stops when placing the work piece, is convenient for place and uses manpower sparingly.

The connecting bolt 13 comprises a connecting inner core 13a and a wear-resistant outer ring 13b rotatably arranged on the outer wall of the connecting inner core 13a, the wear-resistant outer ring 13b is in contact with the inner wall of the waist-shaped hole 12, two ends of the connecting inner core 13a are connected with the two connecting holes 11, and the wear-resistant outer ring 13b can reduce the friction force between the connecting bolt 13 and the inner wall of the waist-shaped hole 12, so that the durability of the connecting bolt is improved.

A first guide hole 14 is horizontally formed in the first abutting part 5, a first guide post 15 movably penetrating through the first guide hole 14 is connected to a drive shaft of the first drive cylinder 3, a first accommodating groove 16 used for accommodating the first guide post 15 is formed in one end, opposite to the first abutting part 5, of the first pressing body 4b, the first drive cylinder 3 is started, the drive shaft horizontally moves to a certain extent, the first guide post 15 penetrates through a hole formed in the connecting frame 28, and therefore the position of the connecting frame 28 can be further fixed, welding accuracy is further guaranteed, the first drive cylinder 3 can simultaneously drive the first guide post 15 and the first pressing body 4b to move, driving cylinders do not need to be respectively arranged, equipment investment is saved, and cost is reduced.

The lateral part of the first guide post 15, which is close to one end of the first driving cylinder 3, is provided with a limiting plate 17 abutted against the first abutting piece 5, a movable groove 18 movably attached to the first guide post 15 is formed in the driving shaft of the first driving cylinder 3, the hydraulic press further comprises an abutting spring 19, two ends of the abutting spring 19 are respectively connected with the first guide post 15 and the movable groove 18, the first guide post 15 penetrates through the first abutting piece 5 under the driving of the first driving cylinder 3, the connecting frame 28 and the first abutting piece 5 can be attached to each other at the moment, the first guide post 15 penetrates through a hole formed in the connecting frame 28, the limiting plate 17 abuts against the first abutting piece 5 at the moment, the first driving cylinder 3 continues to be driven, the position of the first guide post 15 is unchanged, and the first pressing body 4b continues to horizontally swing until the first pressing body 28 is pressed. Wherein, set up limiting plate 17, activity groove 18 and butt spring 19, then can make first guide post 15 pass behind the hole of seting up on link 28 and compressed tightly again, thereby the performance of guaranteeing first guide post 15 positioning action can further improve the welding accuracy.

Still including set up in place piece 20 on bottom plate 1, the roof of placing piece 20 is seted up and is run through place the constant head tank 21 of 20 both sides of piece, can place link 28 on constant head tank 21, the setting of placing piece 20 provides the department of placing for link 28, the setting of constant head tank 21 is spacing to the position that link 28 was placed, the direction of the first guide post 15 of cooperation and the compressing tightly of first compressor 4b, can guarantee the stability of the position of link 28, make it also can not take place to slide when weld machining to further guarantee weld machining's accuracy.

The second pressing assembly 8 comprises a second driving rod 8a hinged to the top of the driving shaft of the second driving cylinder 7 and a connecting body 8b, two ends of the connecting body are hinged to the middle of the second driving rod 8a and the second mounting plate 6, one end, far away from the second driving cylinder 7, of the second driving rod 8a is provided with a plurality of second pressing bodies 22 opposite to the second abutting pieces 9, the second driving cylinder 7 is started, the driving shaft of the second driving cylinder 7 vertically moves up and down to drive the second driving rod 8a to vertically move, the second pressing bodies 22 are driven to move, the supporting frame 29 is placed between the second pressing bodies 22 and the second abutting pieces 9, the second pressing bodies 22 move to a certain degree, and two sides of the supporting frame 29 abut against the second pressing bodies 22 and the second abutting pieces 9 to be clamped. The second pressing component 8 is arranged, the function of pressing the supporting frame 29 is achieved, no structure is blocked when a workpiece is placed, and the workpiece placing device is convenient to place and saves manpower.

The top of second butt piece 9 is provided with a plurality of second guide post 23, second compressor body 22 with the second butt piece 9 one end relative is seted up and is held second holding tank 24 of second guide post 23, place support frame 29 in the top of second butt piece 9 earlier, make second guide post 23 (more than or equal to two) pass the hole of seting up on the support frame 29, so can pinpoint the position of support frame 29, and guarantee the stability in support frame 29 position, make it also can not take place to slide when weld-processing to further guarantee weld-processing's accuracy.

The top of the second mounting plate 6 is provided with a limiting part 26 of which the top is provided with a limiting port 25, three sides of the second driving rod 8a are attached to the inner wall of the limiting port 25, the limiting part 26 can limit the position of the motion path of the second driving rod 8a, particularly the position of the second driving rod when the second driving rod is close to the support frame 29, the position of the second pressing body 22 connected with the end part of the second driving rod when the second pressing body is pressed to the support frame 29 is guaranteed, and the situation that the pressing function is influenced when the pressing deviation occurs is prevented.

It should be noted that, in the present specification, the various embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the various embodiments are referred to each other.

The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.

Claims

1. The utility model provides a welding frock clamp which characterized in that: including bottom plate (1) and set up in first fixture and second fixture on bottom plate (1), first fixture including set up in first mounting panel (2), horizontal installation on bottom plate (1) in first actuating cylinder (3) on first mounting panel (2), by first actuating cylinder (3) driven compress tightly subassembly (4) and first butt piece (5), second fixture including set up in second mounting panel (6) on bottom plate (1), vertical install in second actuating cylinder (7) on second mounting panel (6), by second actuating cylinder (7) driven second compresses tightly subassembly (8) and second butt piece (9).

2. The welding tool clamp of claim 1, wherein: first compress tightly subassembly (4) including first actuating lever (4a) and the first body (4b) that compresses tightly that is L shape, the one end of first actuating lever (4a) with the drive shaft lateral part of first actuating cylinder (3) links to each other, and connection breach (10) and relative division are seted up to the other end and are equipped with two connecting holes (11), the one end of the first body (4b) that compresses tightly is located connect breach (10) are interior and have seted up waist shape hole (12), the middle part with first butt piece (5) are articulated mutually, the other end with first butt piece (5) are relative, still include connecting bolt (13), connecting bolt (13) pass one in proper order connecting hole (11) waist shape hole (12) and another connecting hole (11).

3. The welding tool clamp of claim 2, wherein: connecting pin (13) including connect inner core (13a) and rotate set up in connect wear-resisting outer loop (13b) on inner core (13a) outer wall, wear-resisting outer loop (13b) with the inner wall in waist shape hole (12) contacts, the both ends of connecting inner core (13a) with two connecting hole (11) link to each other.

4. The welding tool clamp of claim 2, wherein: first guiding hole (14) have been seted up to first butt piece (5) the level, the drive shaft of first actuating cylinder (3) is connected with activity and passes first guide post (15) of first guiding hole (14), first compressor body (4b) with first butt piece (5) relative one end is seted up and is used for holding first holding tank (16) of first guide post (15).

5. The welding tool clamp of claim 4, wherein: first guide post (15) are close to the lateral part of the one end of first driving cylinder (3) be provided with limiting plate (17) that first butt piece (5) offseted, the drive shaft of first driving cylinder (3) seted up with movable groove (18) of first guide post (15) activity laminating still include butt spring (19), the both ends of butt spring (19) respectively with first guide post (15) with movable groove (18) link to each other.

6. The welding tool fixture of any one of claims 1-5, wherein: the storage rack is characterized by further comprising a placement block (20) arranged on the bottom plate (1), and positioning grooves (21) penetrating through two sides of the placement block (20) are formed in a top plate of the placement block (20).

7. The welding tool clamp of claim 1, wherein: the second pressing assembly (8) comprises a second driving rod (8a) hinged to the top of a driving shaft of the second driving cylinder (7) and a connecting body (8b) with two ends hinged to the middle of the second driving rod (8a) and the second mounting plate (6), and a plurality of second pressing bodies (22) opposite to the second abutting pieces (9) are arranged at one end, far away from the second driving cylinder (7), of the second driving rod (8 a).

8. The welding tool clamp of claim 7, wherein: the top of the second abutting part (9) is provided with a plurality of second guide posts (23), and a second accommodating groove (24) for accommodating the second guide posts (23) is formed in one end, opposite to the second abutting part (9), of the second pressing body (22).

9. The welding tool clamp of claim 8, wherein: the top of the second mounting plate (6) is provided with a limiting part (26) of which the top is provided with a limiting opening (25), and three sides of the second driving rod (8a) are attached to the inner wall of the limiting opening (25).