CN110405405B

CN110405405B - Automatic welding machine for connecting rod

Info

Publication number: CN110405405B
Application number: CN201910617026.3A
Authority: CN
Inventors: 周新军
Original assignee: Shenzhen Holy Land Air Defense Co ltd
Current assignee: Shenzhen Holy Land Air Defense Co ltd
Priority date: 2019-07-09
Filing date: 2019-07-09
Publication date: 2021-07-13
Anticipated expiration: 2039-07-09
Also published as: CN110405405A

Abstract

The invention relates to a connecting rod automatic welding machine, which comprises: the welding device comprises a clamping assembly, a rotating assembly and a welding gun, wherein the clamping assembly and the rotating assembly are arranged on a workbench, the clamping assembly clamps two ends of a workpiece and clamps and fixes the workpiece, the rotating assembly is arranged adjacent to the clamping assembly, the rotating assembly is used for driving the clamping assembly in the clamping assembly and the workpiece to rotate around the axis of the workpiece, the welding gun is arranged above the workpiece, and the welding gun is aligned to a position on the workpiece to be welded. The invention has the effects of reducing the operation action of the workpiece during welding, reducing the time spent during welding and improving the welding efficiency.

Description

Automatic welding machine for connecting rod

Technical Field

The invention relates to the technical field of welding machines, in particular to an automatic connecting rod welding machine.

Background

Welding, also known as fusion or melt bonding, is a manufacturing process and technique for joining metals or other thermoplastic materials by means of heat, high temperature or high pressure.

When the existing cylindrical workpiece needs to be annularly welded around the axis of the workpiece, the common operation mode is that the workpiece is firstly fixed on a workbench, then a welding gun is manually operated to weld the upper end of the side surface of the workpiece, after the upper end of the side surface of the workpiece is welded, the workpiece is loosened from the workbench and rotates around the axis of the workpiece, so that the lower end of the side surface of the workpiece rotates to the upper position, then the workpiece is fixed, and after the workpiece is fixed, the welding gun is used to weld the side surface of the workpiece, which is positioned above at the moment, so that the annular welding work of the workpiece is completed.

The above prior art solutions have the following drawbacks: the workpiece is fixed on the workbench for manual welding, the workpiece can be continuously welded only by stopping to rotate and adjust the workpiece midway during welding, operation actions are more, time is spent, and welding efficiency is low, so that improvement is needed.

Disclosure of Invention

The invention aims to provide an automatic connecting rod welding machine which has the effects of reducing the operation action of a workpiece during welding, reducing the time spent during welding and improving the welding efficiency.

The above object of the present invention is achieved by the following technical solutions:

a connecting rod automatic welder, comprising: the welding device comprises a clamping assembly, a rotating assembly and a welding gun, wherein the clamping assembly and the rotating assembly are arranged on a workbench, the clamping assembly clamps two ends of a workpiece and clamps and fixes the workpiece, the rotating assembly is arranged adjacent to the clamping assembly, the rotating assembly is used for driving the clamping assembly in the clamping assembly and the workpiece to rotate around the axis of the workpiece, the welding gun is arranged above the workpiece, and the welding gun is aligned to a position on the workpiece to be welded.

By adopting the technical scheme, when a workpiece needs to be welded, the workpiece is clamped and fixed through the clamping assembly, then the rotating assembly is started, the rotating assembly drives the clamping piece in the clamping assembly to rotate together with the workpiece, then the welding gun is close to the position, needing to be welded, on the workpiece from the upper side of the workpiece, the position, needing to be welded, on the workpiece is welded, along with the rotation of the workpiece, one side, below the side surface of the workpiece, can rotate to the upper side to be welded by the welding gun, and further the purpose of completely welding the side surface of the workpiece is achieved.

The invention is further arranged in that the clamping assembly further comprises a jacking piece, the jacking piece is arranged at one end of the workpiece, and the jacking piece is used for driving the clamping piece to clamp and release the workpiece.

Through adopting above-mentioned technical scheme, when the work piece welding, the piece starts to push up, pushes up and moves a drive holder and presss from both sides tight work piece for the work piece is fixed on the holder by stable, and after the work piece welding is good, pushes up and moves a drive holder and loosen the work piece, and the work piece can be followed the holder and taken off this moment.

The invention is further arranged in that the rotating assembly is arranged at one end of the workpiece, the rotating assembly comprises a driving part and a transmission part, the driving part is fixedly arranged on the workbench, the transmission part is arranged between the clamping part and the driving part, and the transmission part is used for transmitting the rotating action output by the driving part to the clamping part.

Through adopting above-mentioned technical scheme, when the runner assembly begins work, start the driving piece, on the driving piece output rotation action to the driving medium, through the transmission of driving medium, with the rotation action transmission to the holder on the driving piece for the holder begins to rotate, and then makes the work piece also begin to rotate together, operating personnel just need not oneself go to rotate the work piece, just can weld in succession, need not stop to adjust the work piece midway, has promoted welded efficiency.

The welding gun is further provided with a connecting rod mechanism, a linkage rod in the connecting rod mechanism is connected with the transmission part, and the connecting rod mechanism is used for controlling the welding gun to be close to or far away from the position of the workpiece to be welded.

By adopting the technical scheme, the arrangement of the link mechanism enables the workpiece to be driven by the link mechanism to approach the workpiece when the workpiece needs to be welded, the welding gun is convenient to weld the workpiece, after the workpiece is welded, the welding gun can be driven by the link mechanism to be away from the workpiece, the welding work of the welding gun is stopped, meanwhile, the spatial distance between the welding gun and the workpiece is increased, the workpiece is convenient to take down, the linkage rod of the link mechanism is connected with the transmission part, the rotating action on the transmission part can be transmitted to the linkage rod, power is provided for the movement of the link mechanism, the link mechanism does not need to be additionally provided with a power source, resources are saved, and the action of the link mechanism and other parts achieve the linkage effect.

The invention is further arranged that the linkage further comprises: the welding gun welding device comprises a cam, a control rod and a fixed rod, wherein the cam is arranged on the linkage rod and rotates along with the linkage rod, the control rod is arranged above the linkage rod, a welding gun is arranged at one end of the control rod and is positioned above a workpiece, one end of the control rod, far away from the welding gun, is rotatably connected onto the fixed rod, the fixed rod is fixedly arranged on a workbench, and the control rod is abutted against the edge of the cam at a position on the surface, close to one side of the linkage rod, between the welding gun and the fixed rod.

By adopting the technical scheme, the cam on the linkage rod also starts to rotate along with the rotation of the linkage rod, when one end of the cam bulge rotates to be abutted against the control rod, the control rod is jacked up by the position of the cam bulge at the moment, the control rod can rotate upwards around the position of the control rod which is rotatably connected with the fixed rod, so that the welding gun arranged at one end of the control rod far away from the fixed rod is lifted upwards, the welding gun is far away from the workpiece and can not weld the workpiece any more due to the fact that the welding gun is lifted upwards, the welding operation is stopped, but along with the rotation of the cam, the position of the bulge on the cam is not abutted against the control rod, the position of the control rod abutted against the cam can be lowered, the control rod rotates downwards around the fixed rod, the welding gun can move towards the direction close to the workpiece, and when the welding gun reaches the distance capable of welding the workpiece, along with the reciprocating motion of the cam, the welding and the stopping of the welding gun can be repeatedly carried out, thereby achieving the purpose of controlling the welding work to be carried out and stopped.

The invention is further provided with a sliding plate arranged between the connecting rod mechanism and the workbench, the sliding plate is arranged on the workbench in a sliding mode and slides in the direction far away from and close to the workpiece, a push-pull assembly is arranged on the workbench and is used for driving the sliding plate to slide, one end of a top block in the push-pull assembly is fixedly connected with a piston rod of a pushing piece, and when the clamping piece loosens the workpiece, the top block pushes the sliding plate to move in the direction far away from the workpiece.

Through adopting above-mentioned technical scheme, because of kicking block and the piston rod fixed connection of ejector piece, when the holder presss from both sides tight work piece, the kicking block is moved by the top of ejector piece top, the kicking block pushes up the slide to the direction removal of keeping away from the work piece again, make link mechanism move to the direction of keeping away from the work piece, the space above the work piece has just so increased, operating personnel just is difficult for touching link mechanism when the work piece of taking, make things convenient for operating personnel to take off and lay the work piece, simultaneously along with the holder with the work piece centre gripping, push-and-pull subassembly can drive the slide to the direction motion of being close to the work piece, link mechanism who is in on the slide this moment also can be along with the slide to the direction motion of being close to the work.

The push-pull assembly further comprises a return spring, the return spring is fixedly arranged on the workbench, one end of the return spring is fixedly connected with one end, close to the workpiece, of the sliding plate, the other end of the return spring is fixedly connected with the workbench, and when the sliding plate moves towards the direction far away from the workpiece, the return spring is in a stretching state.

By adopting the technical scheme and the arrangement of the reset spring, the sliding plate can be pulled back to the original position by the reset spring after moving towards the direction far away from the workpiece, so that the sliding plate is not required to be manually pulled back to the original position by an operator, and the operation is reduced, and meanwhile, the follow-up work is convenient to carry out.

The invention is further set in that the upper surface of the sliding plate is obliquely and slidably provided with a discharging rod, the high end of the discharging rod is aligned with the side surface of the workpiece, which is close to one side of the sliding plate, the end of the workbench, which is far away from the workpiece, is provided with a support, a steering rod is vertically and rotatably arranged on the support, the middle section of the steering rod is rotatably connected with the support, the end of the sliding plate, which is far away from the workpiece, is hinged with the lower end of the steering rod, and the low end.

Through adopting above-mentioned technical scheme, the setting of stripper bar for the work piece just can be taken off by automatic after the welding is accomplished, does not need the manual work piece of operating personnel to take off, has reduced the action of operation, and the setting of steering column makes the stripper bar can realize the linkage with the slide, just does not need operating personnel to go in addition manually to drive the motion of stripper bar, has promoted automatic degree, and on having utilized the kinetic energy on the slide to the stripper bar, has promoted the utilization ratio of energy.

The workpiece clamping device is further provided with a control switch arranged on the workbench, the control switch is used for controlling the rotation and stop of the rotating assembly, and when the ejector piece ejects the clamping piece to clamp the workpiece, the ejector piece simultaneously ejects the control switch to be started.

Through adopting above-mentioned technical scheme, when the piece top is moved the holder and is pressed from both sides tight work piece in the top, the piece is moved in the top and the control switch that pushes up simultaneously is opened for rotating assembly's opening can be moved a control by the top, and operating personnel just need not in addition to push control switch and start rotating assembly, has reduced the action of operation, has saved the time, has also promoted holistic degree of automation.

The invention is further arranged in that a telescopic cushion piece is arranged on the workbench and used for supporting the workpiece and adjusting the height of the position of the workpiece, a groove is arranged at the position, abutted against the workpiece, of the upper surface of the telescopic cushion piece, the workpiece is placed in the groove, and the side surface of the workpiece is abutted against the side wall of the groove.

Through adopting above-mentioned technical scheme, the setting of flexible pad spare for the height of work piece can be adjusted, is convenient for lay not unidimensional work piece to accurate position, has promoted the range of application of equipment, and the area of contact of flexible pad spare and work piece is promoted in the setting of recess, makes the work piece be difficult for taking place the removal of position at will on flexible pad spare, and the work piece is also difficult for falling from flexible pad spare.

In conclusion, the beneficial technical effects of the invention are as follows:

1. when a workpiece needs to be welded, firstly, the workpiece is clamped and fixed through the clamping assembly, then the rotating assembly is started, the rotating assembly drives the clamping piece in the clamping assembly to rotate together with the workpiece, then the welding gun is close to the position, needing to be welded, on the workpiece from the upper side of the workpiece, the position, needing to be welded, on the workpiece is welded, along with the rotation of the workpiece, one side, located below the side surface of the workpiece, can rotate to the upper side to be welded by the welding gun, and further the purpose of completely welding the side surface of the workpiece is achieved.

2. When the rotating assembly starts to work, the driving piece is started, the driving piece outputs rotation action to the transmission piece, the rotation action on the driving piece is transmitted to the clamping piece through transmission of the transmission piece, the clamping piece starts to rotate, further, the workpiece starts to rotate together, an operator does not need to rotate the workpiece by himself or herself, welding can be continuously carried out, the workpiece does not need to be stopped and adjusted midway, and welding efficiency is improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural view of the invention with the protective shell removed.

Fig. 3 is a schematic view of a partial explosion structure of the present invention.

Fig. 4 is an enlarged schematic view of a portion a of fig. 1.

Fig. 5 is an exploded view of part B of fig. 1.

Fig. 6 is an enlarged schematic view of a portion C of fig. 2.

Fig. 7 is a schematic view of the construction of the telescopic top member of the present invention.

In the figure, 1, a clamping assembly; 11. a clamping member; 111. extruding the block; 112. a propping block; 12. a jacking member; 121. an L-shaped block; 2. a rotating assembly; 21. a drive member; 22. a transmission member; 221. a first gear; 222. a second gear; 223. a third gear; 224. a fourth gear; 225. a fifth gear; 226. a sixth gear; 3. a link mechanism; 31. a linkage rod; 32. a cam; 33. a control lever; 331. an abutting member; 3311. a splint; 3312. a butting wheel; 34. fixing the rod; 4. a welding gun; 41. a connecting member; 411. a sleeve; 412. a connecting rod; 5. a work table; 51. a table top; 511. a first chute; 512. a second chute; 513. a through groove; 514. mounting a plate; 5141. a control switch; 515. a first support frame; 5151. pipe sleeve; 5152. a connecting shaft; 516. a second support frame; 5161. a rotating shaft; 517. a support; 5171. a steering lever; 52. a support pillar; 521. a base plate; 522. an auxiliary support bar; 6. a slide plate; 61. a sliding block; 611. a first top moving block; 62. a third support frame; 63. the elastic sheet triggers the switch; 64. a fourth support frame; 65. a support block; 651. a third chute; 652. a discharge rod; 7. a push-pull assembly; 71. a top block; 711. a second top moving block; 72. a return spring; 8. a workpiece; 9. a telescoping pad member; 91. an outer tube; 92. an inner rod; 921. a groove; 93. and a push rod.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, an automatic welding machine for connecting rods disclosed by the invention comprises: centre gripping subassembly 1, rotating assembly 2, link mechanism 3 and welder 4, clamping assembly 1, rotating assembly 2 and link mechanism 3 all set up on workstation 5, clamping assembly 1 grasps the both ends of work piece 8 and carries out the centre gripping to work piece 8 fixed, rotating assembly 2 sets up with clamping assembly 1 is adjacent, rotating assembly 2 is arranged in the drive centre gripping subassembly 1 holder 11 and rotates around work piece 8 self axis with work piece 8, link mechanism 3 sets up on workstation 5 and sets up with clamping assembly 1 is adjacent, welder 4 sets up on link mechanism 3 and is in work piece 8's top, and welder 4 aims at the position that needs to carry out the welding on the work piece 8.

Referring to fig. 1, the worktable 5 includes a table-board 51 and a supporting column 52, the table-board 51 is horizontally disposed on the supporting column 52, and the table-board 51 is rectangular parallelepiped plate-shaped and made of stainless steel; four support columns 52 are arranged, the four support columns 52 are in a rectangular parallelepiped strip shape and are made of stainless steel, the four support columns 52 are vertically arranged on four corners of the lower surface of the table board 51, and the support columns 52 are welded with the table board 51; welding has a backing plate 521 for the lower extreme tip position of every support column 52, and backing plate 521 level setting, backing plate 521 are cuboid plate-type and are stainless steel, and the vertical screw hole of seting up on backing plate 521 can use the bolt to pass the screw hole and fix backing plate 521 subaerial when workstation 5 needs to be fixed subaerial, and then makes workstation 5 fixed subaerial.

Referring to fig. 1, when operating personnel stood and carried out weldment work before workstation 5, the position that operating personnel stood is workstation 5's the place ahead, except workstation 5's the place ahead position, it is provided with an auxiliary support pole 522 to equally divide on support column 52 respectively the level in workstation 5's other three direction, three adjacent settings of auxiliary support pole 522, every auxiliary support pole 522 both ends all with two adjacent support column 52 welded connection, three auxiliary support pole 522 are apart from the height on ground the same, auxiliary support pole 522 is the cuboid bar and is stainless steel material.

Referring to fig. 2 and 6, the upper surface of the table top 51 of the workbench 5 is provided with a sliding plate 6 in a sliding manner, the link mechanism 3 and the welding gun 4 are both arranged on the upper surface of the sliding plate 6, the sliding plate 6 is in a rectangular plate shape and is made of stainless steel, the upper surface of the table top 51 is provided with two first sliding grooves 511 which are parallel to each other, the extending direction of the first sliding grooves 511 is perpendicular to the extending direction of the workpiece 8, the first sliding grooves 511 are far away from the workpiece 8, the vertical section of the first sliding grooves 511 is in a T shape, the sliding block 61 is welded on the lower surface of the sliding plate 6 and is made of stainless steel, the vertical section of the sliding block 61 is in a T shape and is filled with the first sliding grooves 511, and the sliding plate 6 can slide towards the direction close to the workpiece 8 and far away from the workpiece 8.

Referring to fig. 6, the table 51 is further provided with a second sliding slot 512, an extending direction of the second sliding slot 512 is perpendicular to the first sliding slot 511, one end of each of the two first sliding slots 511, which is close to the workpiece 8, is communicated with a side wall of the second sliding slot 512, which is close to the first sliding slot 511, and a horizontal cross section of the second sliding slot 512 is rectangular.

Referring to fig. 2 and 6, in order to enable the sliding plate 6 to slide in a direction away from the workpiece 8, and enable the link mechanism 3 and the welding gun 4 not to affect the workpiece 8 to be taken, a push-pull assembly 7 is arranged between the sliding plate 6 and the workpiece 8, the push-pull assembly 7 comprises a top block 71 and a return spring 72, the top block 71 is a square rod in an L shape and is made of stainless steel, one end of the top block 71, which is horizontally arranged, is slidably arranged in a second sliding groove 512, and one end of the top block 71, which is vertically arranged, extends out of the second sliding groove 512.

Referring to fig. 2 and 6, in order to allow the top block 71 to push the sliding plate 6 while sliding along the second sliding groove 512, one end part of the sliding block 61 close to the second sliding chute 512 is welded with a first pushing block 611, the first pushing block 611 is cuboid-shaped and extends into the second sliding chute 512, the first pushing block 611 is made of stainless steel, the end surface of the first pushing block 611 far away from the sliding block 61 is inclined, and the inclination direction is inclined from one end which is vertically arranged near the top block 71 to one end which is vertically arranged far away from the top block 71, a second jacking block 711 is welded on the surface of one side of one horizontally arranged end of the jacking block 71, which is close to the sliding block 61, and because there are two sliding blocks 61, therefore, two second pushing blocks 711 are provided, the shape and material of the second pushing blocks 711 are the same as those of the first pushing blocks 611, and the surfaces of the second pushing blocks 711 close to the sliding block 61 abut against the first pushing blocks 611 and the abutting surfaces are completely attached.

Referring to fig. 2 and 6, when the top block 71 slides towards the end that is vertically disposed near itself along the second sliding groove 512, because one side surface of the first pushing block 611 and the second pushing block 711 that are abutted against each other is disposed in an inclined shape, the second pushing block 711 pushes the first pushing block 611, so that the first pushing block 611 slides towards the direction away from the workpiece 8 along the first sliding groove 511, and further the sliding block 61 and the sliding plate 6 slide towards the direction away from the workpiece 8 along the first sliding groove 511, and at this time, the link mechanism 3 and the welding gun 4 on the sliding plate 6 can be away from the workpiece 8, so that a relatively large space is provided above the workpiece 8, and the workpiece 8 can be conveniently taken out.

Referring to fig. 2 and 6, the return spring 72 is made of stainless steel, one end of the return spring 72 is fixedly connected to the edge of the upper surface of the sliding plate 6 near one end of the workpiece 8 through a screw, the other end of the return spring 72 is fixedly connected to the edge of the table top 51 near one end of the workpiece 8 through a screw, after the top block 71 slides along the second sliding groove 512 to the end near the end where the top block is vertically arranged, the return spring 72 is in a stretched state, at this time, when the top block 71 slides back to the original position along the second sliding groove 512, the inclined surface on the second top block 711 slides along the inclined surface on the first top block 611 until the two inclined surfaces are completely attached to each other, under the restoring force of the return spring 72, the sliding plate 6 and the sliding block 61 slide along the first sliding groove 511 toward the second sliding groove 512, the first top block 611 also slides toward the second sliding groove 512, at this time, the link mechanism 3 and the welding gun 4 on the sliding plate 6 approach the workpiece 8, the welding gun 4 can weld the workpiece 8 conveniently.

Referring to fig. 1 and 2, the clamping assembly 1 further includes a pushing member 12 in addition to the aforementioned clamping member 11, the pushing member 12 is a cylinder, the pushing member 12 is fixed on a support plate by a bolt, a switch of the pushing member 12 is fixed on a side surface of the worktable 5 by a bolt and is adjacent to the pushing member 12, the support plate is in a rectangular plate shape and is made of stainless steel, the support plate is welded on the table surface 51 of the worktable 5 and is located at one end of the workpiece 8, the support plate is provided with two through grooves 513 along a direction in which a piston rod of the pushing member 12 extends, a horizontal cross section of the through groove 513 is rectangular, a bolt for fixing the pushing member 12 passes through the through groove 513 to fix the pushing member 12, the through groove 513 is arranged so that a position of the pushing member 12 can be changed conveniently, the piston rod on the pushing member 12 is located right above the pushing block 71, an upper end portion of one end of the pushing block 71, which is vertically arranged, is, when the piston rod extends, the top block 71 can be driven to slide along the second sliding groove 512 (refer to fig. 3), so that the purpose that the top moving part 12 controls the sliding plate 6 to slide is achieved.

Referring to fig. 1 and 2, in order to enable the clamping assembly 1 to clamp the workpiece 8 and simultaneously enable the rotating assembly 2 to start working, a control switch 5141 for controlling the rotating assembly 2 to work is fixed below a piston rod of the pushing member 12, the control switch 5141 is a button switch, the control switch 5141 is fixed on a mounting plate 514 through a bolt, the mounting plate 514 is in a cuboid plate shape and is made of stainless steel, the mounting plate 514 is vertically welded on the table-board 51, the control switch 5141 is positioned on one side surface of the mounting plate 514 close to the cylinder body of the pushing member 12, one end of the side surface of the piston rod of the pushing member 12, which is far away from the cylinder body, is welded with an L-shaped block 121, the L-shaped block 121 is an L-shaped square rod, the L-shaped block 121 is made of stainless steel, the inner side of the bent portion of the L-shaped block 121 faces downward, one end of the L-shaped block, when the piston rod of the ejector 12 ejects and the clamping piece 11 clamps the workpiece 8, the L-shaped block 121 presses the button on the control switch 5141, so that the control switch 5141 is turned on, and the rotating assembly 2 starts to work.

Referring to fig. 1, the clamping member 11 is divided into an extrusion block 111 and a pressing block 112, the extrusion block 111 is rotatably connected to the end portion of the piston rod on the pushing member 12, the extrusion block 111 is disc-shaped and made of stainless steel, and a circular groove matched with one end of the workpiece 8 is formed in the end surface of the extrusion block 111 close to one end of the workpiece 8.

Referring to fig. 1, the workpiece 8 is cylindrical and made of stainless steel, and two ends of the workpiece are respectively clamped from two ends to the middle by the pressing block 111 and the abutting block 112.

Referring to fig. 1 and 3, the abutting block 112 is cylindrical and made of stainless steel, the outer side surface of the abutting block 112 is arranged in a step shape, a circular groove matched with one end of the circular groove is also formed in one end, close to the workpiece, of the abutting block 112, the abutting block 112 is fixedly mounted on the upper surface of the table top 51 through a first support frame 515, the first support frame 515 is composed of two support plates, the two support plates are arranged in parallel and perpendicular to the axis of the workpiece 8, the support plates are vertically welded on the workbench 5, the vertical cross sections of the support plates are isosceles trapezoids, the support plates are made of stainless steel, pipe sleeves 5151 are respectively welded at the upper ends of the two support plates, the pipe sleeves 5151 are made of circular pipe shapes and made of stainless steel, the axes of the two pipe sleeves 5151 are coincident and coincident with the axis of the workpiece 8, the abutting block 112 is rotatably sleeved in the pipe sleeves 5151 on the support plate, the connecting shaft 5152 is cylindrical and made of stainless steel, two ends of the connecting shaft 5152 extend into the two pipe sleeves 5151, one end, close to the workpiece 8, of the connecting shaft 5152 is fixedly connected with the abutting block 112 through screws, one end, far away from the workpiece 8, of the connecting shaft 5152 is connected with the rotating assembly 2, and the rotating assembly 2 drives the rotating assembly to rotate.

Referring to fig. 1, when the clamping assembly 1 works, firstly, the workpiece 8 is placed between the abutting block 112 and the extruding block 111, then the ejector 12 is started, so that the piston rod on the ejector 12 is ejected, the ejecting extruding block 111 moves towards the direction close to the abutting block 112 after the piston rod is ejected, and the workpiece 8 is clamped by the abutting block 112 and the extruding block 111 because the workpiece 8 is located between the abutting block 112 and the extruding block 111, thereby achieving the purpose that the clamping assembly 1 clamps the workpiece 8.

Referring to fig. 1 and 7, because the piston rod on the ejector 12 has a certain height, when the workpiece 8 is placed on the worktable 5, two ends of the workpiece cannot align with the extrusion block 111 and the abutting block 112, two retractable pad members 9 are arranged on the table-board 51, the two retractable pad members 9 are arranged in parallel, and the retractable pad members 9 include: the outer pipe 91 is in a round pipe shape and is made of stainless steel, the cross section of a through hole of the outer pipe 91 is square, and the outer pipe 91 is vertically welded on the table-board 51; the inner rod 92 is T-shaped and made of stainless steel, the inner rod 92 is inserted into the through hole of the outer tube 91, and the side surface of the inner rod 92 is abutted against the inner wall of the through hole; the cross-section of the quarter length of the lower end of the through hole of the outer tube 91 is circular, a thread is arranged on the side wall of the position, the ejector rod 93 is a stainless steel bolt, the ejector rod 93 penetrates through the through hole of the outer tube 91 from the lower end of the table board 51 after penetrating through the lower surface of the table board 51 and is in threaded connection with the outer tube 91, one end part of the ejector rod 93 penetrating into the outer tube 91 is abutted to the end part of the lower end of the inner rod 92, a straight hole for the ejector rod 93 to penetrate through is vertically arranged on the table board 51, and the cross.

Referring to fig. 1 and 7, when the workpiece 8 is placed on the inner rod 92 of the pad 9, the top member is screwed, and the top member pushes the inner rod 92 upward along the outer tube 91, so that the inner rod 92 supports the workpiece 8 to a target height.

Referring to fig. 1 and 7, in order to make the workpiece 8 placed on the upper end of the inner rod 92 more stable, a groove 921 is formed in the upper surface of a portion of the upper end of the inner rod 92, which is horizontally arranged, the vertical cross section of the groove 921 is arc-shaped, and when the workpiece 8 is placed in the groove 921, the side surface of the workpiece 8 abuts against the side wall of the groove 921.

Referring to fig. 1 and 3, a protective shell is covered on the rotating assembly 2, the protective shell is rectangular and made of stainless steel, the protective shell is fixedly connected with the table top 51 through screws, the rotating assembly 2 comprises a driving part 21 and a transmission part 22, the driving part 21 is fixed on the workbench 5 through bolts, and the driving part 21 is a motor; the transmission member 22 is disposed between the clamping member 11 and the driving member 21, and the transmission member 22 includes: the first gear 221, the second gear 222, the third gear 223, the fourth gear 224, the fifth gear 225 and the sixth gear 226, the first gear 221 is sleeved on the output shaft of the driving member 21 and is in key connection with the output shaft; the second gear 222 is sleeved on the connecting shaft 5152 and is in key connection with the connecting shaft 5152, and the second gear 222 is in meshed connection with the first gear 221; the third gear 223 is also sleeved on the connecting shaft 5152 and is keyed with the connecting shaft 5152, and the third gear 223 and the second gear 222 are coaxially arranged.

Referring to fig. 3, the fourth gear 224 and the fifth gear 225 are disposed between the third gear 223 and the sixth gear 226, the fourth gear 224 and the fifth gear 225 are disposed coaxially, a second support frame 516 is fixed between the fourth gear 224 and the fifth gear 225 and the table-board 51 through bolts, the second support frame 516 is composed of two parallel straight plates, the two straight plates are perpendicular to the axis of the workpiece 8, the vertical cross sections of the two straight plates are isosceles trapezoids and are made of stainless steel, a rotation shaft 5161 is rotatably connected to the upper ends of the two straight plates, the rotation shaft 5161 is cylindrical and made of stainless steel, two ends of the rotation shaft 5161 respectively penetrate through the straight plates, the fourth gear 224 is disposed between the two straight plates and is sleeved on the rotation shaft 5161, the fourth gear 224 is in key connection with the rotation shaft 5161, the fourth gear 224 is in chain connection with the third gear 223, and the fifth gear 225 is sleeved on one end of the rotation shaft 5161 close to the driving element 21 and in key connection.

Referring to fig. 2 and 3, the sixth gear 226 is sleeved on the linkage rod 31 of the linkage mechanism 3 and is connected with the linkage rod 31 in a key manner, and the sixth gear 226 is connected with the fifth gear 225 in a meshing manner.

Referring to fig. 1 and 3, after the clamping assembly 1 clamps the workpiece 8, the rotating assembly 2 starts to operate, the driving member 21 in the rotating assembly 2 outputs a rotating motion to the first gear 221 in the transmission member 22, the first gear 221 rotates to drive the second gear 222 engaged therewith to rotate, the second gear 222 rotates to drive the connecting shaft 5152 to rotate, and further the abutting block 112 rotates together with the workpiece 8, after the second gear 222 rotates, the third gear 223 mounted on the connecting shaft 5152 starts to rotate, after the third gear 223 rotates, the fourth gear 224 engaged with the third gear is driven to rotate, after the fourth gear 224 rotates, the fourth gear 224 is driven to rotate by the rotating shaft 5161 and is mounted coaxially with the fifth gear 225, after the fifth gear 225 rotates, the sixth gear 226 is driven to rotate, further, the interlinking lever 31 (see fig. 2) is rotated, and the rotational motion is transmitted to the link mechanism 3 (see fig. 2).

Referring to fig. 2, the link mechanism 3 includes, in addition to the aforementioned trace 31: the device comprises cams 32, a control rod 33 and a fixed rod 34, wherein the cams 32 are sleeved on a linkage rod 31 and are connected with the linkage rod 31 in a key mode, one linkage rod 31 is sleeved with two cams 32 which are parallel to each other, the two cams 32 are arranged in parallel, salient points on the cams 32 face the same direction, and the cams 32 are made of stainless steel materials; the trace 31 is cylindrical and is stainless steel, the trace 31 rotates and sets up on a third support frame 62, third support frame 62 comprises two risers that are parallel to each other, the both ends of trace 31 pass two risers respectively and rotate with the riser and be connected, riser vertical section is isosceles trapezoid, the riser is stainless steel, a connecting plate has all been welded to the lower extreme of every riser, the connecting plate is the cuboid plate shape and is stainless steel, the connecting plate is perpendicular with the riser, connecting plate level butt is on slide 6 and through bolt and slide 6 fixed connection, the height that highly is less than work piece 8 of trace 31.

Referring to fig. 2, the control rod 33 is provided with two parallel to each other, one control rod 33 corresponds to one cam 32, the control rod 33 is obliquely arranged on the linkage rod 31, the control rod 33 is rectangular and is made of stainless steel, the height of one end, close to the workpiece 8, of the control rod 33 from the sliding plate 6 is greater than the height of one end, close to the sliding plate 6, of the control rod 33 from the workpiece 8, the height of one end, close to the sliding plate 6, of the control rod 33 from the workpiece 8 is greater than the height of one end, close to the sliding plate 6, of the control rod 33 from the workpiece 8, the position, close to the middle section of the control rod 33, of one end, close to the workpiece 8, of the welding gun.

Referring to fig. 2 and 4, the welding gun 4 is connected with the control rod 33 through a connecting piece 41, the connecting piece 41 includes two sleeves 411 and a connecting rod 412, one sleeve 411 is sleeved on the welding gun 4, the other sleeve 411 is welded on the side surface of the control rod 33 close to one end of the workpiece 8, an opening is formed in the side wall of the sleeve 411 sleeved on the welding gun 4, a bolt is arranged at the opening, the opening of the sleeve 411 is reduced by screwing the bolt, and the welding gun 4 is clamped by the side wall of the sleeve 411, so that the welding gun 4 is fixed; connecting rod 412 is cylindrical and is stainless steel material, the tip of one end of connecting rod 412 and the sleeve pipe 411 lateral wall welding on welder 4, the other end is pegged graft in welding sleeve pipe 411 on control lever 33, an opening has also been seted up on the sleeve pipe 411 lateral wall welding on control lever 33, the opening part also is provided with a bolt, it makes sleeve pipe 411 opening reduce to twist the bolt, and then make sleeve pipe 411 lateral wall press from both sides connecting rod 412 tightly, thereby make connecting rod 412 and control lever 33 fixed connection, and then reach the purpose that welder 4 fixes on control lever 33.

Referring to fig. 2 and 5, the control rod 33 is welded with an abutting member 331 on the lower surface of the bending portion, the abutting member 331 extends toward the direction close to the cam 32, the lower end of the abutting member 331 abuts against the side surface of the cam 32, the abutting member 331 is composed of two clamping plates 3311 and an abutting wheel 3312, the vertical section of the clamping plates 3311 is an inverted isosceles trapezoid, the lower end surface of the clamping plates 3311 is arc-shaped and protrudes downward, the clamping plates 3311 are made of stainless steel, the two clamping plates 3311 are parallel and opposite to each other, the abutting wheel 3312 is clamped between the two clamping plates 3311, the abutting wheel 3312 is made of disc-shaped stainless steel, a rotating shaft is penetrated through the center of the side surface of the abutting wheel 3312, the rotating shaft is made of cylindrical stainless steel, the rotating shaft penetrates through the abutting wheel 3312 and is rotatably connected with the abutting wheel 3312, the two ends of the rotating shaft respectively penetrate through the two clamping plates 3311, the, the cross section of the through hole is circular, and when the abutting wheel 3312 abuts against the cam 32, the two clamping plates 3311 extend downwards to clamp the abutting part of the abutting wheel 3312 and the cam 32, so that the abutting wheel 3312 is not easy to fall off from the cam 32.

Referring to fig. 2, one end of the control rod 33, which is far away from the welding gun 4, is rotatably connected with the fixing rod 34, the fixing rod 34 is cylindrical and made of stainless steel, the fixing rod 34 is installed on one side, which is far away from the workpiece 8, of the table board 51, the fixing plate is fixed on the sliding plate 6 through a fourth supporting frame 64, the fourth supporting frame 64 is the same as the third supporting frame 62, but the upward extending height of the third supporting frame 62 is greater than the upward extending height of the fourth supporting frame 64, a round hole is formed in the side surface of one end, which is far away from the welding gun 4, of the control rod 33, so that the fixing rod.

Referring to fig. 1 and 5, after the transmission member 22 transmits the rotation to the linkage lever 31, the cam 32 on the linkage lever 31 starts to rotate, and since the abutting member 331 on the control lever 33 abuts against the cam 32, when the salient point on the cam 32 moves to the lower position, the height of the abutting position of the control lever 33 and the cam 32 is reduced, so that the control lever 33 rotates around the fixing rod 34 to reduce the height, and further the welding gun 4 descends to approach the workpiece 8, and at this time, the welding gun 4 can start welding the workpiece 8, and when the salient point of the cam 32 moves to the upper position, the cam 32 pushes up the control lever 33 through the abutting member 331, and the control lever 33 rotates around the fixing rod 34 to raise, and further the welding gun 4 is lifted away from the workpiece 8, and the workpiece 8 is not welded.

Referring to fig. 1, since the welding gun 4 does not need to weld the workpiece 8 after being lifted, and if the welding gun 4 is always on, energy is consumed, a spring trigger switch 63 is fixed on the sliding plate 6 through a bolt, the spring trigger switch 63 is connected with the driving member 21 and the welding gun 4 through a lead, the stopping of the driving member 21 and the starting and stopping of the welding gun 4 are controlled, the spring trigger switch 63 is located between the linkage rod 31 and the fixing rod 34 and below the control rod 33, and when the control rod 33 is pressed downwards, a spring on the spring trigger switch 63 is pressed, so that the spring trigger switch 63 is opened, the welding gun 4 starts to work, and when the control rod 33 is lifted upwards, the control rod 33 releases the spring, and the spring trigger switch 63 cuts off the power supply of the driving member 21 and the welding gun 4, so that the driving member 21 and the welding gun 4 stop working.

Referring to fig. 1 and 6, since the workpiece 8 needs to be manually removed by an operator after welding, in order to reduce the operation action of the operator, a discharging rod 652 is obliquely and slidably disposed above the sliding plate 6, the discharging rod 652 is rectangular and made of stainless steel, one end of the discharging rod 652, which is high, is toward the side surface of the workpiece 8, which is close to the sliding plate 6, one end of the discharging rod 652, which is high, is bent downward to form a hook, and the hook is aligned with the workpiece 8; in order to install this unloading pole 652, there is a supporting shoe 65 at the skin weld of the slide 6, supporting shoe 65 is between dead lever 34 and trace 31, supporting shoe 65 is cuboid shape and the upper end surface is the slope form setting, supporting shoe 65 is stainless steel, the inclination of supporting shoe 65 upper end surface is the same with the inclination of discharge tube, a third spout 651 has been seted up to supporting shoe 65 upper end surface intermediate position, the extending direction of third spout 651 is the same with the incline direction on inclined plane, the cross-section of third spout 651 is rectangle, unloading pole 652 is placed in third spout 651 and is just with third spout tank bottom and lateral wall butt, the equal opening in high and low both ends of third spout 651 sets up.

Referring to fig. 2 and 6, when the discharging rod 652 slides in the third sliding groove 651, the operator needs to push it by hand, which is very inconvenient, so keep away from 8 one end welding of work piece at mesa 51 and have a support 517, support 517 is a square bar that is L shape, support 517 is stainless steel material, the inboard vertical up of support 517 department of buckling, support 517 is the one end and the 51 edge weld of mesa of level setting, support 517 is the one end rotation of vertical setting and is connected with a steering column 5171, steering column 5171 is the cuboid strip and is stainless steel material, steering column 5171 middle section position and support 517 realize rotating the purpose of being connected through a rivet, the rivet is stainless steel material, the side surface butt of 8 one ends of work piece is kept away from with slide plate 6 to steering column 5171 lower extreme, the tip butt of the low one end of steering column 5171 upper end and discharge bar 652.

Referring to fig. 2 and 6, after the sliding plate 6 moves away from the workpiece 8, one end of the sliding plate 6 away from the workpiece 8 impacts the lower end of the steering rod 5171, the lower end of the steering rod 5171 rotates around the rotational connection with the bracket 517 in a direction away from the sliding plate 6 after being impacted, so that the upper end of the steering rod 5171 rotates around the rotary joint with the bracket 517 to the direction close to the workpiece 8, so that the upper end of the steering rod 5171 hits the lower end of the discharge rod 652, and after the discharge rod 652 is hit, the discharging rod 652 slides along the third sliding groove 651, the bent part at the high end of the discharging rod 652 impacts the workpiece 8, the workpiece 8 is knocked down from the telescopic pad 9, the purpose of taking down the workpiece 8 is achieved, the discharging rod 652 slides to the position abutted against the upper end of the steering rod 5171 along the sliding groove under the action of self gravity after impacting the workpiece 8, and at the moment, the high end of the discharging rod 652 is far away from the position where the workpiece 8 is placed.

The implementation principle of the embodiment is as follows: when a workpiece 8 needs to be welded, firstly, the workpiece 8 is placed on the telescopic cushion member 9, then the height of the workpiece 8 is adjusted by adjusting the telescopic cushion member 9, so that two ends of the workpiece 8 are respectively aligned with the abutting block 112 and the extrusion block 111, then the ejector 12 is started to enable the piston rod on the ejector 12 to eject the extrusion block 111, so that the extrusion block 111 approaches to the abutting block 112 to clamp the workpiece 8, at the moment, the sliding plate 6 returns to the position before sliding under the action of the return spring 72, after the workpiece 8 is clamped, the L121-shaped block on the piston rod of the ejector 12 extrudes the button of the control switch 5141, so that the rotating assembly 2 starts to work, and as the rotating assembly 2 can drive the clamping member 11 to rotate, the workpiece 8 clamped by the clamping member 11 also starts to rotate, and as the rotating assembly 2 can also transmit the rotating motion to the link mechanism 3, the link mechanism 3 enables the welding gun 4 to move towards the direction close to the workpiece 8, meanwhile, the control rod 33 in the link mechanism 3 presses down the elastic sheet of the elastic sheet trigger switch 63, so that the elastic sheet trigger switch 63 is turned on, the welding gun 4 starts to work at the moment, the workpiece 8 is welded, and the annular welding of the workpiece 8 is completed along with the rotation of the workpiece 8.

After the workpiece 8 is welded, the welding gun 4 is pulled up in a direction away from the workpiece 8 under the pulling of the link mechanism 3, at this time, the piston rod of the ejector 12 retracts, the clamping piece 11 releases the clamping on the workpiece 8, and due to the existence of the ejector block 71, the ejector block 71 is pulled by the piston rod in a direction close to the cylinder body of the ejector 12, the first ejector block 611 on the ejector block 71 pushes the second ejector block 711, so that the sliding block 61 and the sliding plate 6 slide in a direction away from the workpiece 8, the sliding plate 6 slides in a direction away from the workpiece 8 and then impacts the steering rod 5171, after the steering rod 5171 rotates, the upper end of the steering rod 652 impacts the discharging rod 652, the discharging rod 652 slides along the third sliding chute 651 under the impact of the steering rod 5171 to impact the workpiece 8 to push the workpiece 8 down to extend and retract the pad 9, thereby completing the purpose of removing the workpiece 8, and at this time, a new workpiece 8 to be welded can be placed on the extensible pad 9, and preparing for the next welding.

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

Claims

1. An automatic connecting rod welding machine, comprising: the welding device comprises a clamping assembly (1), a rotating assembly (2) and a welding gun (4), wherein the clamping assembly (1) and the rotating assembly (2) are arranged on a workbench (5), the clamping assembly (1) clamps two ends of a workpiece (8) and clamps and fixes the workpiece (8), the rotating assembly (2) and the clamping assembly (1) are arranged adjacently, the rotating assembly (2) is used for driving a clamping piece (11) and the workpiece (8) in the clamping assembly (1) to rotate around the axis of the workpiece (8), the welding gun (4) is arranged above the workpiece (8), and the welding gun (4) is aligned to a position, needing to be welded, on the workpiece (8);

the workbench (5) is provided with a sliding plate (6) in a sliding manner, the welding gun (4) is arranged on the sliding plate (6), a sliding block (61) is fixedly arranged on the lower surface of the sliding plate (6), and the sliding plate (6) can slide towards the direction close to the workpiece (8) and away from the workpiece (8) through the sliding block (61); a push-pull assembly (7) is arranged between the sliding plate (6) and the workpiece (8), the push-pull assembly (7) comprises a top block (71) and a return spring (72), the top block (71) is arranged on the workbench (5) in a sliding mode and is located between the workpiece (8) and the sliding plate (6), the top block (71) is used for pushing the sliding block (61) to slide towards the direction far away from the workpiece (8), one end of the return spring (72) is fixedly connected with the workbench (5), the other end of the return spring is fixedly connected with the sliding plate (6), and the return spring (72) is used for pulling the sliding plate (6) to slide towards the direction close to the workpiece (8) after the sliding plate (6) slides towards the direction far away from the workpiece (8);

one end part of the sliding block (61), which is close to the workpiece (8), is welded with a first pushing block (611), the end face of one end, which is far away from the sliding block (61), of the first pushing block (611) is obliquely arranged, one side surface, which is close to the sliding block (61), of one end, which is horizontally arranged, of the pushing block (71) is welded with a second pushing block (711), one side surface, which is close to the sliding block (61), of the second pushing block (711) is abutted to the first pushing block (611), and two abutted surfaces are completely attached to each other;

the clamping assembly (1) comprises a jacking piece (12), the jacking piece (12) is fixed on the workbench (5), the jacking piece (12) is used for jacking the clamping piece (11) to clamp and fix the workpiece (8), one end of a jacking block (71) is fixedly connected with the jacking piece (12), and the jacking block (71) can be driven by the jacking piece (12) to slide;

a connecting rod mechanism (3) is arranged on the welding gun (4), a linkage rod (31) in the connecting rod mechanism (3) is connected with the transmission part (22), and the connecting rod mechanism (3) is used for controlling the welding gun (4) to be close to and far away from the position of the workpiece (8) to be welded;

the link mechanism (3) further includes: the welding gun welding device comprises a cam (32), a control rod (33) and a fixed rod (34), wherein the cam (32) is arranged on the linkage rod (31) and rotates along with the linkage rod (31), the control rod (33) is arranged above the linkage rod (31), a welding gun (4) is arranged at one end of the control rod (33) and is positioned above a workpiece (8), one end, far away from the welding gun (4), of the control rod (33) is rotatably connected onto the fixed rod (34), the fixed rod (34) is fixedly arranged on the workbench (5), and the position, close to one side surface of the linkage rod (31), of the control rod (33) and between the welding gun (4) and the fixed rod (34) is abutted against the edge of the cam (32);

the upper surface of the sliding plate (6) is obliquely and slidably provided with a discharging rod (652), one end with the height of the discharging rod (652) is aligned with the side surface of the workpiece (8) close to one side of the sliding plate (6), one end, far away from the workpiece (8), of the workbench (5) is provided with a support (517), the support (517) is vertically and rotatably provided with a steering rod (5171), the middle section of the steering rod (5171) is rotatably connected with the support (517), one end, far away from the workpiece (8), of the sliding plate (6) is hinged with the lower end of the steering rod (5171), and the lower end of the discharging rod (652) is abutted against the upper end of the steering rod (.

2. The automatic connecting rod welding machine according to claim 1, characterized in that the rotating assembly (2) is arranged at one end of the workpiece (8), the rotating assembly (2) comprises a driving part (21) and a transmission part (22), the driving part (21) is fixedly arranged on the worktable (5), the transmission part (22) is arranged between the clamping part (11) and the driving part (21), and the transmission part (22) is used for transmitting the rotating action output by the driving part (21) to the clamping part (11).

3. The automatic connecting rod welding machine according to claim 1, wherein a control switch (5141) is arranged on the workbench (5), the control switch (5141) is used for controlling the rotation and stop of the rotating assembly (2), and when the jacking piece (12) jacks the clamping piece (11) to clamp the workpiece (8), the jacking piece (12) jacks the control switch (5141) to be turned on simultaneously.

4. The automatic connecting rod welding machine according to claim 1, wherein a telescopic cushion piece (9) is arranged on the workbench (5), the telescopic cushion piece (9) is used for supporting the workpiece (8) and adjusting the height of the position of the workpiece (8), a groove (921) is formed in the position, abutted against the workpiece (8), of the upper surface of the telescopic cushion piece (9), the workpiece (8) is placed in the groove (921), and the side surface of the workpiece (8) is abutted against the side wall of the groove (921).