CN214350216U - Automatic projection welding device for machining piston rod of shock absorber - Google Patents

Abstract

The invention discloses an automatic projection welding device for machining a piston rod of a shock absorber, which comprises a base, wherein bearing plates are arranged on two sides of the top of the base, a mounting plate is arranged on the top of the bearing plates, hydraulic cylinders are arranged on two sides of the front end surface of the mounting plate, the bottoms of the hydraulic cylinders are connected with a shell through a fixing block A, a supporting plate is arranged on the bottom of the shell, a shock absorption mechanism is arranged at the center of the top end in the shell and comprises a fixing plate A, a connecting column, a connecting block A, a connecting plate, a connecting block B, a fixing plate B, a damping rubber pad B, a spring B, a side plate, a buffer block A, a limiting plate B, a limiting column B, a through hole B, a threaded hole B and a through hole C, the occurrence of trip errors caused by overlarge vibration of the piston rod in use is effectively avoided, and the problem that the fixed piston rod cannot absorb shock is solved, the stability of equipment is improved, and the practicality is strong.

Description

Automatic projection welding device for machining piston rod of shock absorber

Technical Field

The invention relates to the technical field of welding, in particular to an automatic projection welding device for machining a piston rod of a shock absorber.

Background

The projection welding machine is mainly composed of machine body, welding transformer, pressure transmission device and kd7306 series microcomputer controller, and adopts air pressure transmission to pressurize, its working stroke and auxiliary stroke can be uniformly regulated, and the lower electrode of projection welding machine can be regulated in vertical direction in stepped mode to ensure stable pressure between electrodes.

The existing automatic projection welding device for machining the piston rod of the shock absorber has the following defects:

1. the automatic projection welding device for machining the piston rod of the existing shock absorber easily generates overlarge vibration in the welding process, so that manual shock reduction is needed when the shock absorber is used at every time, and the phenomenon that the work piece has an error when being welded to influence the working efficiency is avoided.

2. The automatic projection welding device is used in processing of the existing shock absorber piston rod, a rolling support plate is often adopted to support a workpiece in an assembling and welding process, workers hold welding parts to move on the rolling support plate, positions needing to be welded are sequentially aligned to upper electrodes and lower electrodes of a projection welding machine, welding is completed, the randomness of operation of the workers is large, welding quality cannot be strictly guaranteed, and labor intensity is not reduced.

Disclosure of Invention

The invention aims to provide an automatic projection welding device for machining a piston rod of a shock absorber, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: an automatic projection welding device for machining a piston rod of a shock absorber comprises a base, wherein bearing plates are mounted on two sides of the top of the base, a mounting plate is mounted on the top of the bearing plates, hydraulic cylinders are mounted on two sides of the front end face of the mounting plate, the hydraulic cylinders are connected with a shell through a fixing block A, a supporting plate is mounted at the bottom of the shell, through holes A are formed in two sides of the surface of the supporting plate, a shock absorption mechanism is mounted at the center position of the top end of the inner portion of the shell and comprises a fixing plate A, a connecting post, a connecting block A, a connecting plate, a connecting block B, a fixing plate B, a damping rubber pad B, a spring B, a side plate, a buffer block A, a limiting plate B, a limiting post B, a through hole B, a threaded hole B and a through hole C, electrode seats are mounted on two sides of the center position of the bottom of the supporting plate, a control box is mounted at the center position of the top of the base, and the control box is positioned between every two bearing plates.

Preferably, the edges of two sides of the bottom of the base are provided with supporting columns.

Preferably, the top of the hydraulic cylinder is provided with an oil cylinder.

Preferably, damping rubber pads A are installed on two sides of the interior of the shell, and the outer wall of the other side of each damping rubber pad A is in contact with the outer wall of one side of the supporting plate.

Preferably, spacing post A is all installed to the inside top both sides of casing, and through-hole A is passed to spacing post A's the other end and is connected with limiting plate A, is provided with the external screw thread on spacing post A's the bottom outer wall, and limiting plate A's surperficial screw hole A has been seted up, and the external screw thread on the spacing post A is connected with the internal thread meshing on the screw hole A, is provided with spring A on spacing post A's the outer wall, and spring A is located casing and backup pad between two liang.

Preferably, the center of the bottom of the fixed plate A is provided with a connecting column, two sides of the outer wall of the connecting column are provided with connecting blocks A, the connecting blocks A are movably connected with one end of a connecting plate through movable pin shafts, the other end of the connecting plate is movably connected with a connecting block B through movable pin shafts, the connecting block B is arranged at the center of the top of the buffer block A, the end wall of the buffer block A is provided with a through hole B, a limiting column B is arranged in the through hole B, the hole wall of the through hole B is in clearance connection with the outer wall of the limiting column B, the outer side of the outer wall of the limiting column B is sleeved with a spring B, the spring B is positioned between the side plate and the buffer block A, the side plate is arranged on two sides of the upper surface of the fixed plate B, a damping rubber pad B is arranged between every two adjacent side plates, and damping rubber pad B is installed at the upper surface of fixed plate B, and damping rubber pad B's upper surface and the bottom of buffer block A are contacted.

Preferably, the through hole C is arranged on the outer wall of the side plate, the surface center of the limiting plate B is provided with a threaded hole B, the two ends of the limiting column B penetrate through the through hole C on the side plate to be connected with the limiting plate B, external threads are arranged on the outer walls of the two ends of the limiting column B, and the external threads on the outer wall of the limiting column B are meshed with the internal threads on the hole wall of the threaded hole B.

Preferably, control button A is installed to the preceding terminal surface of last electrode holder, and the bottom of going up the electrode holder is passed through fastening nut and is connected with the connecting rod, and the pore wall on the fastening nut and the bottom outer wall gap connection of connecting rod, the standing groove has been seted up to the bottom of connecting rod, and fixed block B is installed at the top of standing groove, and the bracing piece is installed to the bottom of fixed block B, and the buffer board is installed to the bottom of bracing piece, and the buffer board passes through buffer spring and is connected with buffer block B, and the electrode is installed to buffer block B's bottom.

Preferably, a heat dissipation plate is mounted on a front end surface of the control box.

Preferably, the rubber pads are installed at the edges of two sides of the top of the control box, the lower electrode seats are installed on two sides of the top of the control box and located between every two adjacent rubber pads, the lower electrode is installed at the top of the lower electrode seats, the positioning pin is installed at the top of the lower electrode, and the control button B is installed on the front end face of the lower electrode seats.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, through the arrangement of the shell and the supporting plate, when the vertical vibration generated in the working process of the equipment is transmitted to the supporting plate, the limiting column A is arranged between the shell and the supporting plate, the spring A is sleeved on the outer wall of the limiting column A, the spring A rebounds after being compressed and deformed under the action of the spring A, when the supporting plate compresses the spring A, the spring A rebounds after being compressed and deformed, and meanwhile, the damping rubber pad A is arranged at the joint of the supporting plate and the shell, so that the supporting plate can be damped and buffered, and the primary buffering and damping effects of the equipment on the supporting plate are improved.

2. By arranging the damping mechanism, when the vertical vibration generated by the equipment in the working process is transmitted to the supporting plate, the vibration force borne by the supporting plate is transmitted to the fixing plate B, so that the buffer blocks A on the fixing plate B move leftwards or rightwards, the bottom of the fixed plate A is provided with a connecting column, a connecting plate is connected between a connecting block B on the fixed plate B and a connecting block A on the connecting column, the horizontal included angle of the connecting plate is changed when the buffer block A moves leftwards or rightwards, the horizontal included angle change of the connecting plate drives the buffer block A to compress the spring B, so that the vibration force applied to the fixing plate B is decomposed, the effect of resilience after the spring B is compressed and deformed is utilized, and a damping rubber pad B is arranged between the buffer block A and the fixing plate B, can carry out the damping buffering to buffer block A, improve the secondary buffering shock attenuation effect of the equipment in the backup pad.

3. According to the invention, through the arrangement of the connecting rod, when the vertical vibration generated by the upper electrode in the working process is transmitted to the supporting plate, the supporting rod is arranged in the connecting rod, the buffer plate is arranged at one end of the supporting rod, and the buffer spring is arranged between the buffer plate and the buffer block B, so that the automatic upper electrode can be subjected to damping and buffering by adopting the damping and buffering effect of the buffer spring, and the error caused by the overlarge vibration of the upper electrode in the use process to weld a workpiece is prevented.

4. According to the invention, through the arrangement of the limiting plate A and the limiting plate B, when the equipment is used for a long time, the elasticity of the spring A and the spring B is weakened, the limiting plate A can be separated from the supporting plate by rotating the limiting plate A through the engagement of the external thread on the limiting column A and the internal thread on the threaded hole A, and the limiting plate B can be separated from the limiting column B by rotating the limiting plate B through the engagement of the external thread on the limiting column B and the internal thread on the threaded hole B, so that the problems of disassembly and assembly of the device and the like are effectively solved, the condition that the device cannot be maintained and replaced due to damage is avoided, and the practicability of the device is improved.

Drawings

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

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 4 is an enlarged view of the structure at B in FIG. 1 according to the present invention

FIG. 5 is a schematic view of the shock absorbing mechanism of the present invention;

FIG. 6 is a schematic view of the housing of the present invention in elevation;

fig. 7 is a schematic view of the connecting rod in elevation structure of the present invention.

In the figure: 1. a base; 101. a support pillar; 102. a bearing plate; 2. mounting a plate; 201. an oil cylinder; 202. a hydraulic cylinder; 203. a fixed block A; 3. a housing; 301. a damping rubber pad A; 4. a support plate; 401. a through hole A; 5. a limiting column A; 501. a limiting plate A; 502. a threaded hole A; 503. a spring A; 6. a damping mechanism; 601. fixing a plate A; 602. connecting columns; 603. connecting a block A; 604. a connecting plate; 605. connecting block B; 606. a fixing plate B; 607. a damping rubber pad B; 608. a spring B; 609. a side plate; 610. a buffer block A; 611. a limiting plate B; 612. a limiting column B; 613. a through hole B; 614. a threaded hole B; 615. a through hole C; 7. an upper electrode mount; 701. a control button A; 702. fastening a nut; 8. a connecting rod; 801. a placement groove; 802. a fixed block B; 803. a support bar; 804. a buffer plate; 805. a buffer spring; 806. a buffer block B; 807. an upper electrode; 9. a control box; 901. a heat dissipation plate; 902. a rubber pad; 903. a lower electrode holder; 904. a control button B; 905. a lower electrode; 906. and a positioning pin.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred devices or elements must have specific orientations, be constructed in specific orientations, and be operated, and thus are not to be construed as limiting the present invention, and furthermore, the terms "first" and "second" are only used for descriptive purposes and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements can be directly connected or indirectly connected through an intermediate medium, and the two elements can be communicated with each other, so that the specific meaning of the terms in the invention can be understood by those skilled in the art.

Referring to fig. 1-7, an embodiment of the present invention is shown: an automatic projection welding device for machining a piston rod of a shock absorber comprises a base 1, support columns 101 are mounted at edges of two sides of the bottom of the base 1, bearing plates 102 are mounted at two sides of the top of the base 1, a mounting plate 2 is mounted at the top of the bearing plates 102, hydraulic cylinders 202 are mounted at two sides of the front end face of the mounting plate 2, oil cylinders 201 are mounted at the tops of the hydraulic cylinders 202, the bottoms of the hydraulic cylinders 202 are connected with a shell 3 through fixing blocks A203, a support plate 4 is mounted at the bottom of the shell 3, through holes A401 are formed in two sides of the surface of the support plate 4, damping rubber pads A301 are mounted at two sides of the inside of the shell 3, the outer wall of the other side of each damping rubber pad A301 is in contact with the outer wall of one side of the support plate 4, limit columns A5 are mounted at two sides of the top of the inside of the shell 3, the other end of each limit column A5 penetrates through the through hole A401 to be connected with a limit plate A501, external threads are arranged on the outer wall of the bottom end of the limit column A5, the surface of the limit plate A501 is provided with a threaded hole A502, external threads on the limit column A5 are meshed and connected with internal threads on the threaded hole A502, the outer wall of the limit column A5 is provided with a spring A503, the spring A503 is positioned between the shell 3 and the support plate 4, through the arrangement of the shell 3 and the support plate 4, when vertical vibration generated in the operation of equipment is transmitted to the support plate 4, the limit column A5 is arranged between the shell 3 and the support plate 4, the outer wall of the limit column A5 is sleeved with the spring A503, the spring A503 is compressed by the support plate 4 and rebounded after being compressed and deformed, meanwhile, a damping rubber pad A301 is arranged at the joint of the support plate 4 and the shell 3, so that the support plate 4 can be damped, the first damping effect of the equipment on the support plate 4 is improved, and a damping mechanism 6 is arranged at the center position of the top end in the shell 3, the damping mechanism 6 comprises a fixing plate A601, a connecting column 602, a connecting block A603, a connecting plate 604, a connecting block B605, a fixing plate B606, a damping rubber pad B607, a spring B608, a side plate 609, a buffer block A610, a limiting plate B611, a limiting column B612, a through hole B613, a threaded hole B614 and a through hole C615, wherein the connecting column 602 is installed at the center of the bottom of the fixing plate A601, the connecting blocks A603 are installed on two sides of the outer wall of the connecting column 602, the connecting block A603 is movably connected with one end of the connecting plate 604 through a movable pin shaft, the other end of the connecting plate 604 is movably connected with the connecting block B605 through a movable pin shaft, the connecting block B605 is installed at the center of the top of the buffer block A610, the through hole B613 is formed in the end wall of the buffer block A610, the limiting column B612 is installed in the through hole B613, the hole wall of the through hole B613 is in clearance connection with the outer wall of the limiting column B612, the spring B608 is sleeved outside the outer wall of the limiting column B612, and the spring B608 is located between the side plate 609 and the buffer block A610, the side plates 609 are arranged on two sides of the upper surface of the fixing plate B606, damping rubber pads B607 are arranged between every two adjacent side plates 609, the damping rubber pads B607 are arranged on the upper surface of the fixing plate B606, the upper surfaces of the damping rubber pads B607 are contacted with the bottom of the buffer block A610, the through holes C615 are arranged on the outer walls of the side plates 609, the surface center position of the limiting plate B611 is provided with a threaded hole B614, two ends of the limiting column B612 pass through the through holes C615 on the side plates 609 to be connected with the limiting plate B611, the outer walls of two ends of the limiting column B612 are provided with external threads, the external threads on the outer wall of the limiting column B612 are in threaded engagement with the internal threads on the hole wall of the threaded hole B614, through the arrangement of the damping mechanism 6, when the vertical direction vibration generated during the work of the equipment is transmitted to the supporting plate 4, the vibration force received by the supporting plate 4 is transmitted to the fixing plate B606, so that the buffer block A610 on the fixing plate B606 moves leftwards or rightwards, the bottom of the fixed plate A601 is provided with a connecting column 602, a connecting plate 604 is connected between a connecting block B605 on a fixed plate B606 and a connecting block A603 on the connecting column 602, the horizontal included angle of the connecting plate 604 is changed when the buffer block A610 moves leftwards or rightwards, the horizontal included angle of the connecting plate 604 is changed, the buffer block A610 is driven to compress a spring B608, the vibration force applied to the fixed plate B606 is decomposed, the effect of rebound after the spring B608 is compressed and deformed is utilized, a damping rubber pad B607 is arranged between the buffer block A610 and the fixed plate B606, the buffer block A610 can be damped and buffered, the secondary buffering and damping effect of the equipment on the supporting plate 4 is improved, through the arrangement of the limiting plate A501 and the limiting plate B611, when the equipment is used for a long time, the situation that the elasticity of the spring A503 and the spring B608 is weakened occurs, through the external thread on the limiting column A5 and the internal thread on the threaded hole A502 are meshed, the limiting plate A501 can be rotated to be separated from the supporting plate 4, the limiting plate B611 can be rotated to be separated from the limiting column B612 through the engagement of the external thread on the limiting column B612 and the internal thread on the threaded hole B614, the problems of disassembly and assembly of the device and the like are effectively solved, the situation that the device is damaged and cannot be maintained and replaced is avoided, the practicability of the device is improved, the electrode holder 7 is arranged on both sides of the central position of the bottom of the supporting plate 4, the control button A701 is arranged on the front end surface of the upper electrode holder 7, the bottom of the upper electrode holder 7 is connected with the connecting rod 8 through the fastening nut 702, the hole wall on the fastening nut 702 is in clearance connection with the outer wall of the bottom of the connecting rod 8, the placing groove 801 is arranged at the bottom of the connecting rod 8, the fixing block B802 is arranged at the top of the placing groove 801, the supporting rod 803 is arranged at the bottom of the fixing block B802, the buffer plate 804 is arranged at the bottom of the supporting rod 803, the buffer plate 804 is connected with the buffer block B806 through the buffer spring 805, an upper electrode 807 is arranged at the bottom of a buffer block B806, through the arrangement of a connecting rod 8, when the vibration in the vertical direction generated by the upper electrode 807 in the work process can be transmitted to a support plate 4, a support rod 803 is arranged in the connecting rod 8, a buffer plate 804 is arranged at one end of the support rod 803, a buffer spring 805 is arranged between the buffer plate 804 and the buffer block B806, the buffer spring 805 is adopted for shock absorption and buffering, the automatic upper electrode 807 can be subjected to shock absorption and buffering, errors caused by the overlarge vibration of the upper electrode 807 in the use process and the generation of welding workpieces are prevented, a control box 9 is arranged at the center position of the top of a base 1, the control box 9 is positioned between every two bearing plates 102, a heat dissipation plate 901 is arranged on the front end surface of the control box 9, rubber pads 902 are arranged at the edges of two sides of the top of the control box 9, lower electrode seats 903 are arranged at two sides of the top of the control box 9, and the lower electrode seats 903 are positioned between every two adjacent rubber pads 902, a lower electrode 905 is mounted on the top of the lower electrode holder 903, a positioning pin 906 is mounted on the top of the lower electrode 905, and a control button B904 is mounted on the front end surface of the lower electrode holder 903.

The working principle is as follows: before the device is used, a user firstly detects the device, confirms that the device is used after no problem exists, when the vertical direction vibration generated in the working process of the device is transmitted to the supporting plate 4, the limiting column A5 is arranged between the shell 3 and the supporting plate 4, the spring A503 is sleeved on the outer wall of the limiting column A5, the effect of rebounding after the compression deformation of the spring A503 is utilized, when the supporting plate 4 compresses the spring A503, the spring A503 rebounds after the compression deformation, meanwhile, the damping rubber pad A301 is arranged at the joint of the supporting plate 4 and the shell 3 and can damp and buffer the supporting plate 4, the first buffering and damping effect of the device on the supporting plate 4 is improved, when the vertical direction vibration generated in the working process of the device is transmitted to the supporting plate 4, the vibration force received by the supporting plate 4 is transmitted to the fixing plate B606, the buffer blocks A610 on the fixing plate B606 are all moved leftwards or rightwards, the connecting column 602 is arranged at the bottom of the fixing plate A601, the connecting plate 604 is connected between the connecting block B605 on the fixing plate B606 and the connecting block A603 on the connecting column 602, the horizontal included angle of the connecting plate 604 is changed when the buffer block A610 moves leftwards or rightwards, the horizontal included angle of the connecting plate 604 is changed, the buffer block A610 is driven to compress the spring B608 through the change of the horizontal included angle of the buffer block A610, so that the vibration force applied to the fixing plate B606 is decomposed, the spring B608 is rebounded after being compressed and deformed, the damping rubber pad B607 is arranged between the buffer block A610 and the fixing plate B606, the buffer block A610 can be damped and buffered, the secondary buffering and damping effect of the equipment on the supporting plate 4 is improved, when the equipment is used for a long time, the elastic force of the spring A503 and the spring B608 is weakened, the limiting column A5 is meshed with the thread of the internal thread on the threaded hole A502, the limiting plate A501 can be separated from the supporting plate 4 through rotating, the external thread on the limiting column B612 is meshed with the internal thread on the threaded hole B614, then rotate limiting plate B611 and can break away from spacing post B612, the effectual disassembly and the equipment scheduling problem that has solved the device, the condition that the device appears damaging and can't maintain and change has been avoided, the practicality of device has been improved, the vertical direction vibrations that produce when last electrode 807 in operation can transmit for backup pad 4, set up bracing piece 803 in connecting rod 8, and set up buffer plate 804 in bracing piece 803 one end, set up buffer spring 805 through between buffer plate 804 and buffer block B806, adopt buffer spring 805 shock attenuation buffering's effect, can use the shock attenuation to automatic last electrode 807 and cushion, prevent that last electrode 807 shakes too big and produce the welding workpiece in use and the error appears, the usability is strong.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore desired that the present embodiments be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, without any reference thereto being construed as limiting the claim concerned.

Claims (10)

1. The utility model provides a processing of bumper shock absorber piston rod is with automatic projection welding device, includes base (1), its characterized in that: bearing plate (102) are all installed to the top both sides of base (1), mounting panel (2) are installed at the top of bearing plate (102), pneumatic cylinder (202) are all installed to the preceding terminal surface both sides of mounting panel (2), the bottom of pneumatic cylinder (202) is passed through fixed block A (203) and is connected with casing (3), backup pad (4) are installed to the bottom of casing (3), through-hole A (401) have all been seted up to the surface both sides of backup pad (4), damper (6) are installed to the inside top central point of casing (3), damper (6) are including fixed plate A (601), spliced pole (602), connecting block A (603), connecting plate (604), connecting block B (605), fixed plate B (606), damping rubber pad B (607), spring B (608), curb plate (609), buffer block A (610), Limiting plate B (611), limiting column B (612), through-hole B (613), screw hole B (614) and through-hole C (615), electrode holder (7) are all installed to the bottom central point of backup pad (4) puts both sides, the top central point of base (1) puts and installs control box (9), and control box (9) are located bearing plate (102) between two liang.

2. The automatic projection welding device for machining the piston rod of the shock absorber according to claim 1, wherein: support columns (101) are installed at the edges of two sides of the bottom of the base (1).

3. The automatic projection welding device for machining the piston rod of the shock absorber according to claim 1, wherein: and an oil cylinder (201) is arranged at the top of the hydraulic cylinder (202).

4. The automatic projection welding device for machining the piston rod of the shock absorber according to claim 1, wherein: damping rubber pads A (301) are installed on two sides of the interior of the shell (3), and the outer wall of the other side of each damping rubber pad A (301) is in contact with the outer wall of one side of the support plate (4).

5. The automatic projection welding device for machining the piston rod of the shock absorber according to claim 1, wherein: spacing post A (5) are all installed to the inside top both sides of casing (3), the other end of spacing post A (5) passes through-hole A (401) and is connected with limiting plate A (501), be provided with the external screw thread on the bottom outer wall of spacing post A (5), threaded hole A (502) are seted up on the surface of limiting plate A (501), and the external screw thread on spacing post A (5) is connected with the internal thread meshing on screw hole A (502), be provided with spring A (503) on the outer wall of spacing post A (5), and spring A (503) are located casing (3) and backup pad (4) between two liang.

6. The automatic projection welding device for machining the piston rod of the shock absorber according to claim 1, wherein: a connecting column (602) is arranged at the center of the bottom of the fixing plate A (601), connecting blocks A (603) are arranged on two sides of the outer wall of the connecting column (602), the connecting blocks A (603) are movably connected with one end of a connecting plate (604) through a movable pin shaft, the other end of the connecting plate (604) is movably connected with a connecting block B (605) through a movable pin shaft, the connecting block B (605) is arranged at the center of the top of a buffer block A (610), a through hole B (613) is formed in the end wall of the buffer block A (610), a limiting column B (612) is arranged in the through hole B (613), the hole wall of the through hole B (613) is in clearance connection with the outer wall of the limiting column B (612), a spring B (608) is sleeved on the outer side of the outer wall of the limiting column B (612), the spring B (608) is positioned between a side plate (609) and the buffer block A (610), and side plates (609) are arranged on two sides of the upper surface of the fixing plate B (606), damping rubber pads B (607) are arranged between every two adjacent side plates (609), the damping rubber pads B (607) are installed on the upper surface of the fixing plate B (606), and the upper surfaces of the damping rubber pads B (607) are in contact with the bottom of the buffer block A (610).

7. The automatic projection welding device for machining the piston rod of the shock absorber according to claim 1, wherein: the through hole C (615) is formed in the outer wall of the side plate (609), a threaded hole B (614) is formed in the surface center position of the limiting plate B (611), the two ends of the limiting column B (612) penetrate through the through hole C (615) in the side plate (609) to be connected with the limiting plate B (611), external threads are formed in the outer walls of the two ends of the limiting column B (612), and the external threads on the outer wall of the limiting column B (612) are meshed with the internal threads on the hole wall of the threaded hole B (614) in a threaded manner.

8. The automatic projection welding device for machining the piston rod of the shock absorber according to claim 1, wherein: control button A (701) is installed to the preceding terminal surface of going up electrode holder (7), the bottom of going up electrode holder (7) is passed through fastening nut (702) and is connected with connecting rod (8), and the pore wall on fastening nut (702) and the bottom outer wall gap junction of connecting rod (8), standing groove (801) have been seted up to the bottom of connecting rod (8), fixed block B (802) are installed at the top of standing groove (801), bracing piece (803) are installed to the bottom of fixed block B (802), buffer board (804) are installed to the bottom of bracing piece (803), buffer board (804) are connected with buffer block B (806) through buffer spring (805), last electrode (807) are installed to the bottom of buffer block B (806).

9. The automatic projection welding device for machining the piston rod of the shock absorber according to claim 1, wherein: the front end face of the control box (9) is provided with a heat dissipation plate (901).

10. The automatic projection welding device for machining the piston rod of the shock absorber according to claim 1, wherein: rubber pad (902) are all installed at the top both sides edge of control box (9), and electrode holder (903) down is all installed to the top both sides ann of control box (9), and electrode holder (903) are located between two liang of neighbors of rubber pad (902) down, and bottom electrode (905) are installed at the top of bottom electrode holder (903), and locating pin (906) are installed at the top of bottom electrode (905), and control button B (904) are installed to the preceding terminal surface of bottom electrode holder (903).

Images