CN214079934U - High-efficient electric welding - Google Patents

Abstract

The utility model belongs to bicycle production facility field especially relates to a high-efficient electric welding, it includes the organism, one side of organism is equipped with the base, be equipped with the supporting component who is used for top tube and connecting pipe behind the centre gripping on the base, the supporting component includes the supporting shoe, backup pad and bracing piece, the bracing piece is connected with the top surface of base, the one end and the bracing piece joint of back top tube, the backup pad is located one side of bracing piece length direction and is connected with the top surface of base, the first groove that holds that is used for holding the connecting pipe is offered to the top surface of backup pad, the supporting shoe is located the backup pad and keeps away from one side of bracing piece and is connected with the base, the supporting shoe is close to the lateral wall of backup pad and offers the second that is used for holding the back top tube and holds the groove. This application has the effect that improves welding efficiency.

Description

High-efficient electric welding

Technical Field

The application relates to bicycle production facility field especially relates to a high-efficient electric welding.

Background

The bicycle is a small land vehicle driven by treading pedals manually, is usually a double-wheel, and the connection between the rear tire and the bicycle body is fixedly connected through a rear upper fork and a rear lower fork, wherein the rear upper fork is used for connecting a bicycle seat tube and is a framework for supporting and fixing the rear tire of the whole bicycle.

Referring to fig. 1, the structure that back upper fork 1 set up for the symmetry, back upper fork 1 includes two back upper tubes 11, 11 symmetries of two back upper tubes set up, the one end that back upper tube 11 and bicycle seat union coupling are close to each other, and crooked to the direction that is close to each other, be equipped with connecting pipe 12 between two back upper tubes 11, connecting pipe 12 is located the one end that two back upper tubes 11 are close to each other, the both ends of connecting pipe 12 respectively with two back upper tubes 11 welding, the one end that the bicycle tube seat was kept away from to back upper tube 11 is kept away from each other, and be connected with the joint piece 111 that is.

Two back top tubes are welded through two ends with the connecting pipe to realize linking two back top tubes together, and for promoting welding efficiency, welding device is adopted to weld connecting pipe and back top tube usually. However, when the welding device is used for welding, the two rear upper tubes are usually supported by hands, so that the stability of the welding of the rear upper tubes and the connecting tubes is maintained.

For the above related art, the inventor believes that when welding the two rear upper tubes and the connecting tube, the rear upper tubes and the connecting tube are held by a hand, and there may be a problem that when the rear upper tubes and the connecting tube are held by the hand, the relative positions between the rear upper tubes and the connecting tube need to be adjusted, thereby resulting in low welding efficiency.

SUMMERY OF THE UTILITY MODEL

Efficiency when going up pipe and connecting pipe after in order to promote the welding, this application provides a high-efficient electric welding.

The application provides a pair of high-efficient electric welding adopts following technical scheme:

the utility model provides a high-efficient electric welding, which comprises a bod, one side of organism is equipped with the base, be equipped with the supporting component who is used for top tube and connecting pipe behind the centre gripping on the base, the supporting component includes the supporting shoe, backup pad and bracing piece, the bracing piece is connected with the top surface of base, the one end and the bracing piece joint of back top tube, the backup pad is located one side of bracing piece length direction and is connected with the top surface of base, the first groove that holds that is used for holding the connecting pipe is offered to the top surface of backup pad, the supporting shoe is located one side that the bracing piece was kept away from to the backup pad and is connected with the base, the supporting shoe is close to the lateral wall of backup pad and offers the second that is used for holding back top tube and holds the groove.

Through adopting above-mentioned technical scheme, during top tube and connecting pipe after the welding, the one end of top tube after will be connected with the bracing piece, the second is placed to the other end and holds the inslot, then places the first inslot that holds with the connecting pipe for the both ends of connecting pipe respectively with two after top tubes global butt that are close to each other, then start the electric welding and carry out the welding operation. After the supporting block is provided with the second containing groove, the end part of the rear upper pipe is embedded into the second containing groove, and the side wall of the second containing groove limits the rear upper pipe so as to prevent the rear upper pipe from deviating during welding; simultaneously, the bracing piece supports and is spacing to the one end that the supporting shoe was kept away from to back top tube, further guarantees the stability of back top tube, when reducing the welding, the phenomenon that back top tube takes place the skew. First holding groove carries on spacingly to the connecting pipe, reduces the condition of connecting pipe skew during the welding. The setting of supporting shoe, backup pad and bracing piece can carry on spacingly to back top tube and connecting pipe for when the welding, do not need the hand back top tube of people and connecting pipe, do not need the relative position of top tube and connecting pipe after the adjustment, and then can promote welding efficiency.

Optionally, a clamping assembly for clamping the clamping sheet on the rear upper tube is arranged between the supporting rod and the base, the clamping assembly comprises a clamping block and a clamping nut, the clamping block is connected with the top surface of the base, one end of the supporting rod penetrates through the thickness of the clamping block and is in sliding connection with the clamping block, the supporting rod is provided with threads, the clamping nut is sleeved on the supporting rod and is in threaded connection with the supporting rod, and the two clamping nuts are respectively located on two sides of the clamping block.

Through adopting above-mentioned technical scheme, with the joint piece joint back on the bracing piece, screw up clamping nut, until the joint piece simultaneously with press from both sides tight piece and clamping nut butt, accomplish spacing to the joint piece. The clamping piece can be clamped by the clamping block and the clamping nut, the sliding condition of the clamping piece is reduced, and the stability of the rear upper pipe during welding is further ensured.

Optionally, the bottom surface of the clamping block is open, a bottom block is slidably connected in the clamping block, the bottom block is connected with the top surface of the base, and a first locking member is arranged between the clamping block and the bottom block.

Through adopting above-mentioned technical scheme, the welding angle of top tube and connecting pipe is different after the difference, when the welding angle between top tube and the connecting pipe after needs adjustment, slides and presss from both sides tight piece, and the one end that presss from both sides tight piece removal and drive top tube joint piece after the welding removes, and then adjusts the welding angle between top tube and the connecting pipe. The clamping block is connected with the bottom block in a sliding mode, so that the flexibility of clamping the clamping sheet can be improved, and the angle between the rear upper pipe and the welding of the connecting pipe can be adjusted conveniently.

Optionally, the first locking piece is a first locking bolt, a first sliding hole which is vertically arranged is formed in the side wall of the clamping block, and one end of the first locking bolt penetrates through the first sliding hole and then is in threaded connection with the clamping block.

Through adopting above-mentioned technical scheme, the height of top tube welding back joint piece one end is thick after the adjustment, it can to screw up first locking bolt. The arrangement of the first locking bolt is simple in structure and convenient to operate; in addition, the sliding range of the clamping block can be expanded due to the arrangement of the first sliding hole, so that the clamping block stops at different positions, and the flexibility in use is improved.

Optionally, the bottom block is connected with the base in a sliding mode, a second locking piece is arranged between the bottom block and the base and is a second locking bolt, and the second locking bolt penetrates through the bottom block and then is connected with the base in a threaded mode.

Through adopting above-mentioned technical scheme, the length of last pipe is different after the difference, according to the back pipe of different length, the bottom block that slides, the bottom block slides and drives and press from both sides tight piece and bracing piece and be close to or keep away from the supporting shoe for the bracing piece carries out the joint to the back pipe of different length. And then can further promote the application range when the top tube behind the joint.

Optionally, the supporting block is connected with the base in a sliding manner, the supporting block is close to or far away from the supporting plate, and the supporting block is connected with a driving assembly for driving the supporting block to be close to or far away from the supporting plate.

The length of the back top tube of the bicycle of different models is different, according to the length of the back top tube of difference, the supporting shoe slides and drives the second and hold the groove and slide for the supporting shoe can hold the back top tube of different length. Supporting shoe and base sliding connection set up, can make the supporting shoe support the back top tube of different length, and then make when welding different length back top tubes and connecting pipe, all need not artifical hand back top tube, promote the suitability of electric welding.

Optionally, the driving assembly includes a fixing block, a first driving rod, a second driving rod and a third driving rod, the fixing block is located on one side of the supporting block far away from the supporting plate and fixedly connected with the base, one end of the first driving rod is hinged to the fixing block, one end of the second driving rod is hinged to one end of the first driving rod far away from the fixing block, the other end extends towards the direction close to the supporting block, one end of the third driving rod is hinged to one end of the second driving rod close to the supporting block, the other end is connected with the supporting block, the third driving rod is connected with the fixing block in a sliding manner, the sliding direction is opposite to that of the supporting block, and an elastic element is arranged between the third driving rod and the supporting block.

Through adopting above-mentioned technical scheme, during the slip supporting shoe, rotate first actuating lever, the top of first actuating lever is close to or keeps away from the fixed block, and first actuating lever rotates drive second actuating lever and rotates for the one end that first actuating lever was kept away from to the second actuating lever is close to or keeps away from the supporting shoe, and the one end that first actuating lever was kept away from to the second actuating lever removes drive third actuating lever and supporting shoe and is close to or keeps away from the backup pad, realizes fixing the back top tube to different length. The arrangement of the first driving rod, the second driving rod and the third driving rod is simple in structure and convenient to operate. The elastic piece plays the effect of buffering, promotes the smooth and easy nature that third actuating lever drive supporting block removed.

Optionally, the elastic element is a spring, the expansion direction of the spring is the same as the sliding direction of the supporting block, one end of the spring is fixedly connected with the third driving rod, and the other end of the spring is fixedly connected with the supporting block.

By adopting the technical scheme, when the third driving rod moves, the third driving rod moves to drive the spring to extend or contract, and the third spring has a buffering effect on the movement of the supporting block. The spring is arranged, the structure is simple, and the operation is convenient.

In summary, the present application includes at least one of the following beneficial technical effects:

the setting of supporting shoe, backup pad and bracing piece can carry out spacing and joint to back top tube and connecting pipe, and then can guarantee the stability of top tube and connecting pipe after the welding, and the condition of top tube and connecting pipe after the staff adjustment when reducing the welding promotes welding efficiency.

The supporting shoe sets up with base sliding connection, can carry on spacingly to the back top tube of different length, and then can promote welding set's application range.

Due to the arrangement of the spring, when the third driving rod drives the supporting block, the supporting block is buffered, and the stability of the supporting block in driving is improved.

Drawings

Fig. 1 is a schematic structural view of a rear upper fork.

Fig. 2 is a schematic structural diagram of an embodiment of the present application.

Fig. 3 is a schematic view of a partial structure of a support plate intended to be shown in the present application.

Fig. 4 is a schematic view of a partial structure of a support rod according to the present application.

Fig. 5 is a partial sectional view of the present application, intended to show the primary drive rod.

Fig. 6 is a schematic view of a partial structure of a clamping plate for displaying the clamping plate.

Description of reference numerals: 1. a rear upper fork; 11. then, the tube is placed on the upper tube; 111. a clip sheet; 12. a connecting pipe; 2. a base; 21. a welding device; 3. a support assembly; 31. a support block; 311. a second holding tank; 312. a guide plate; 32. a support plate; 321. a clamping and connecting plate; 3211. a first holding tank; 322. a vertical plate; 323. a sliding plate; 3231. a fourth slip hole; 3232. a fourth bolt; 33. a support bar; 4. a clamping assembly; 41. a clamping block; 411. a slide hole; 412. a bottom block; 413. a first sliding hole; 4131. a first locking bolt; 4121. a vertical block; 4122. a transverse plate; 4123. a second locking bolt; 4124. a second sliding hole; 42. clamping the nut; 5. a slider; 51. a support table; 52. a horizontal plate; 521. a third sliding hole; 522. a third locking bolt; 6. a drive assembly; 61. a fixed block; 611. a clamping groove; 612. a guide hole; 62. a first drive lever; 621. a push rod; 63. a second drive lever; 64. a third drive lever; 641. a spring.

Detailed Description

The present application is described in further detail below with reference to figures 2-6.

The embodiment of the application discloses high-efficient electric welding. Referring to fig. 2, a high-efficient electric welding includes the organism, and the organism includes welding set 21, and one side of welding set 21 is equipped with base 2, is equipped with the supporting component 3 that is used for top tube 11 and connecting pipe 12 behind the centre gripping on the base 2. When upper tube 11 and connecting pipe 12 after the welding, will be back upper tube 11 and connecting pipe 12 all place supporting component 3 on, supporting component 3 carries out the centre gripping to back upper tube 11 and connecting pipe 12, then welding set 21 to back upper tube 11 and connecting pipe 12 weld can.

Referring to fig. 3, the supporting assembly 3 includes a supporting block 31, a supporting plate 32 and a supporting rod 33, the supporting block 31, the supporting plate 32 and the supporting rod 33 are sequentially distributed along the length direction of the base 2, the supporting rod 33 and the supporting block 31 are used for clamping the rear upper tube 11, and the supporting plate 32 is used for clamping the connecting tube 12.

Referring to fig. 3 and 4, the supporting rod 33 is threaded, the supporting rod 33 is horizontally disposed above the base 2, and the length direction is perpendicular to the length direction of the base 2. A clamping assembly 4 is arranged between the supporting rod 33 and the base 2, the clamping assembly 4 comprises a clamping block 41 and a clamping nut 42, the clamping block 41 is connected with the base 2, and one end of the supporting rod 33 penetrates through the clamping block 41 and is in sliding connection with the clamping block 41; two clamping nuts 42 are arranged and are sleeved on the supporting rod 33 and are in threaded connection with the supporting rod 33, and the two clamping nuts 42 are respectively located on two sides of the clamping block 41.

With reference to fig. 3 and 4, the bottom end of the clamping block 41 is open, the clamping block 41 is slidably connected with the bottom block 412, the bottom block 412 comprises a vertical block 4121 and a horizontal plate 4122, the vertical block 4121 is located in the clamping block 41 and slidably connected with the clamping block 41, a first sliding hole 413 vertically arranged is formed in the side wall of the clamping block 41, a first locking member is arranged between the vertical block 4121 and the clamping block 41, the first locking member is a first locking bolt 4131, and one end of the first locking bolt 4131 penetrates through the first sliding hole 413 and then is in threaded connection with the clamping block 41. The transverse plate 4122 is a horizontally arranged plate-shaped structure, the transverse plate 4122 is located below the clamping block 41, the top surface of the transverse plate 4122 is fixedly connected with the bottom surface of the vertical block 4121, the bottom surface of the transverse plate 4122 is abutted against and slidably connected with the top surface of the base 2, the sliding direction is the same as the length direction of the base 2, the top surface of the transverse plate 4122 is provided with two second sliding holes 4124, the two second sliding holes 4121 are respectively located on two sides of the sliding direction of the vertical block 4121, the length direction of the second sliding holes 4124 is the same as the length direction of the base 2, a second locking member is arranged between the transverse plate 4122 and the base 2 and is a second locking bolt 4123, and one end of the second locking bolt 4123 penetrates through the second sliding holes 4124 and then is in threaded connection with the base 2.

According to the size of the rear upper tube 11, when the height of the supporting rod 33 needs to be adjusted, the clamping block 41 slides to drive the supporting rod 33 to move up and down until the welding requirement is met, and then the clamping nut 42 is screwed down; when the distance between the supporting rod 33 and the supporting block 31 needs to be adjusted, the transverse plate 4122 slides to drive the vertical block 4121, the clamping block 41 and the supporting rod 33 to be close to or far away from the supporting block 31 until the welding requirement is met, and then the second locking bolt 4123 is screwed.

Referring back to fig. 3, a sliding block 5 is arranged between the supporting block 31 and the base 2, the sliding block 5 is slidably connected to the top surface of the base 2, the sliding block 5 includes a supporting table 51 and a horizontal plate 52, the horizontal plate 52 is a horizontally arranged plate-shaped structure, the bottom surface of the horizontal plate 52 is abutted to and slidably connected to the top surface of the base 2, the sliding direction of the horizontal plate 52 is the same as the length direction of the base 2, a third sliding hole 521 is formed in the top surface of the horizontal plate 52, the length direction of the third sliding hole 521 is the same as the length direction of the base 2, a third locking member is arranged between the horizontal plate 52 and the base 2, the third locking member is a third locking bolt 522, and the third locking bolt 522 passes through the third sliding hole 521 and then is in threaded connection with the base 2.

Referring to fig. 3, the supporting block 31 is slidably connected to the top surface of the supporting table 51, the sliding direction is the same as the length direction of the base 2, a second holding groove 311 is formed in the side wall of the supporting block 31 close to the supporting plate 32, the top surface of the second holding groove 311 is open, and two side walls of the second holding groove 311 opposite to each other are abutted to the peripheral surface of one end, far away from the clamping piece, of the rear upper tube 11. Referring to fig. 5, a driving assembly 6 is disposed between the supporting block 31 and the supporting table.

Referring to fig. 3, two guide plates 312 are fixedly connected to the top surface of the support table 51, the longitudinal direction of the guide plates 312 is the same as the sliding direction of the support block 31, the two guide plates 312 are respectively located on both sides of the sliding direction of the support block 31, the side walls of the guide plates 312 are abutted against the side walls of the support block 31, and the top ends of the guide plates 312 are bent in the direction of approaching each other.

Referring to fig. 3 and 5, the driving assembly 6 includes a fixing block 61, a first driving rod 62, a second driving rod 63, and a third driving rod 64, the fixing block 61 is located at one end of the supporting block 31 away from the supporting plate 32, the fixing block 61 is cylindrical, an axial direction of the fixing block 61 is the same as a length direction of the base 2, and the fixing block 61 is fixedly connected to a top surface of the supporting table 51. The end of the fixing block 61 far away from the supporting block 31 is provided with a clamping groove 611, the depth direction of the clamping groove 611 is the same as the axial direction of the fixing block 61, and the top end of the clamping groove 611 is open. One end of the first driving rod 62 is positioned in the clamping groove 611 and hinged to the fixed block 61, the direction of the hinged shaft is perpendicular to the axial direction of the fixed block 61, the other end of the hinged shaft is hinged to one end of the second driving rod 63, one end of the first driving rod 62 close to the second driving rod 63 is fixedly connected with a push rod 621, and the length direction of the push rod 621 is perpendicular to the length direction of the first driving rod 62; the second driving rod 63 is obliquely arranged, and one end of the second driving rod 63, which is far away from the first driving rod 62, is located in the clamping groove 611 and extends towards the supporting block 31. The end of the fixed block 61 close to the supporting block 31 is provided with a guide hole 612 coaxial with the fixed block 61, the guide hole 612 is communicated with the embedding groove 611, the third driving rod 64 is located in the guide hole 612, one end of the third driving rod 64 penetrates through the guide hole 612 and is hinged to the end of the second driving rod 63 far away from the first driving rod 62, the other end of the third driving rod 64 is connected with an elastic member, the elastic member is a spring 641, the expansion direction of the spring 641 is the same as the length direction of the third driving rod 64, and the end of the spring 641 far away from the third driving rod 64 is fixedly connected with the side wall of the supporting block 31 close to the third driving rod 64.

Place the one end of going away from the card piece 111 back upper tube 11 in the inlay card groove 611, the push rod 621 rotates, push rod 621 rotates the first actuating lever 62 of drive and rotates, first actuating lever 62 rotates drive second actuating lever 63 and rotates, second actuating lever 63 rotates drive third actuating lever 64 and removes, third actuating lever 64 removes drive spring 641 extension or shrink, and drive supporting shoe 31 is close to or keeps away from back upper tube 11, until the lateral wall of second flourishing groove 311 closely supports with the global of back upper tube 11, accomplish spacing to back upper tube 11.

With reference to fig. 3 and 6, support plate 32 is located between support block 31 and support rod 33, support plate 32 includes joint plate 321 and vertical plate 322, vertical plate 322 is vertically located above base 2 and is connected with base 2 in a sliding manner, the bottom end of vertical plate 322 bends to the end close to support rod 33 to form sliding plate 323, fourth sliding hole 3231 is opened on the top surface of sliding plate 323, the length direction of fourth sliding hole 3231 is the same as the length direction of base 2, fourth bolt 3232 is arranged between sliding plate 323 and base 2, and fourth bolt 3232 passes through fourth sliding hole 3231 and then is connected with base 2 in a threaded manner. The joint board 321 level is located the top and riser 322 fixed connection of riser 322, and first holding groove 3211 has been seted up to the top surface of joint board 321, and first holding groove 3211's length direction is perpendicular with the length direction of base 2, and the both ends of first holding groove 3211 are the opening form, and the length that first holding groove 3211's length is less than the length of connecting pipe 12. During the inlay card connecting pipe 12, place first holding tank 3211 with connecting pipe 12 in for the both ends of connecting pipe 12 and the global butt of last pipe 11 afterwards can.

The implementation principle of the high-efficiency electric welding machine in the embodiment of the application is as follows: adjusting the relative distance among the supporting block 31, the supporting rod 33 and the clamping plate 321 according to the length of the rear upper tube 11, then clamping and embedding the clamping piece 111 of the rear upper tube 11 on the supporting rod 33, and placing the other end of the rear upper tube 11 in the second containing groove 311; then, the clamp nut 42 is tightened, and then the push rod 621 is rotated until the side wall of the second receiving groove 311 is brought into close contact with the peripheral surface of the rear upper tube 11. Finally, the connecting pipe 12 is placed in the first containing groove 3211, and the welding device 21 is started.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a high-efficient electric welding, includes the organism, and the one end of organism is equipped with base (2), its characterized in that: be equipped with supporting component (3) that are used for upper tube (11) and connecting pipe (12) behind the centre gripping on base (2), supporting component (3) are including supporting shoe (31), backup pad (32) and bracing piece (33), bracing piece (33) are connected with the top surface of base (2), the one end and bracing piece (33) joint of back upper tube (11), backup pad (32) are located one side of bracing piece (33) length direction and are connected with the top surface of base (2), the first groove (3211) of holding that is used for holding connecting pipe (12) is seted up to the top surface of backup pad (32), supporting shoe (31) are located one side that bracing piece (33) were kept away from in backup pad (32) and are connected with base (2), the second that is used for holding back upper tube (11) is offered to lateral wall that supporting shoe (31) are close to backup pad (32) holds groove (311).

2. A high efficiency electric welding machine as claimed in claim 1 wherein: be equipped with between bracing piece (33) and base (2) and be used for pressing from both sides tight clamping unit (4) of going up joint piece (111) on last pipe (11) after, clamping unit (4) are including pressing from both sides tight piece (41) and clamp nut (42), press from both sides the top surface that tight piece (41) and base (2) and be connected, the one end of bracing piece (33) is passed and is pressed from both sides tight piece (41) and press from both sides tight piece (41) sliding connection, set up the screw thread on bracing piece (33), clamp nut (42) cover is established on bracing piece (33) and bracing piece (33) threaded connection, clamp nut (42) are equipped with two, be located the both sides of pressing from both sides tight piece (41) respectively.

3. A high efficiency electric welding machine as claimed in claim 2, wherein: the bottom surface of the clamping block (41) is open, the bottom block (412) is connected in the clamping block (41) in a sliding mode, the bottom block (412) is connected with the top surface of the base (2), and a first locking piece is arranged between the clamping block (41) and the bottom block (412).

4. A high efficiency electric welding machine as claimed in claim 3 wherein: the first locking piece is a first locking bolt (4131), a first sliding hole (413) which is vertically arranged is formed in the side wall of the clamping block (41), and one end of the first locking bolt (4131) penetrates through the first sliding hole (413) and then is in threaded connection with the clamping block (41).

5. A high efficiency electric welding machine as claimed in claim 3 wherein: the base block (412) is connected with the base (2) in a sliding mode, a second locking piece is arranged between the base block (412) and the base (2), the second locking piece is a second locking bolt (4123), and the second locking bolt (4123) penetrates through the base block (412) and then is connected with the base (2) in a threaded mode.

6. A high efficiency electric welding machine as claimed in claim 1 wherein: the supporting block (31) is connected with the base (2) in a sliding mode, and the supporting block (31) is connected with a driving assembly (6) for driving the supporting block (31) to be close to or far away from the supporting plate (32).

7. A high efficiency electric welding machine as claimed in claim 6 wherein: the driving component (6) comprises a fixed block (61) and a first driving rod (62), second drive rod (63) and third drive rod (64), fixed block (61) are located supporting shoe (31) and keep away from one side of backup pad (32) and are connected with base (2), the one end and fixed block (61) of first drive rod (62) are articulated, the one end and the one end that fixed block (61) were kept away from to the one end of second drive rod (63) are articulated, the other end extends to the direction that is close to supporting shoe (31), the one end and the one end that second drive rod (63) are close to supporting shoe (31) of third drive rod (64) are articulated, the other end is connected with supporting shoe (31), third drive rod (64) and fixed block (61) sliding connection, the slip direction is mutually with the slip direction of supporting shoe (31), be equipped with the elastic component between third drive rod (64) and supporting shoe (31).

8. A high efficiency electric welding machine as claimed in claim 7, wherein: the elastic element is a spring (641), the expansion direction of the spring (641) is the same as the sliding direction of the supporting block (31), one end of the spring (641) is fixedly connected with the third driving rod (64), and the other end of the spring (641) is fixedly connected with the supporting block (31).

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