A mechanical workpiece welding clamping device

Abstract

The present invention discloses a mechanical workpiece welding clamping device, comprising a device carrier plate, a height lifting bar, a rotating mechanism and a clamping mechanism, a height lifting bar is provided on the upper side of the device carrier plate, a clamping mechanism base is provided on the top of the height lifting bar, a rotating mechanism is provided between the clamping base and the height lifting bar, the height lifting bar and the clamping mechanism base are hinged through the rotating mechanism, a clamping mechanism is tightly fixed on the top of the clamping mechanism base, the clamping mechanism comprises a connecting block, an arc-shaped opening seat and a clamping arm, a connecting block is provided on one side of the arc-shaped opening seat, a clamping arm is respectively provided on the other side of the arc-shaped opening seat, an extension arm is mounted inside the clamping arm, and fixing screws are respectively passed through the insides of the clamping arm and the extension arm. The present invention has a simple structure and is convenient for transportation, and the clamping position can be adjusted according to actual conditions to meet the welding work of mechanical workpieces of different sizes and shapes.

Description

Technical Field

[0001] The invention relates to the field of welding clamping machinery, in particular to a mechanical workpiece welding clamping device. Background Art

[0002] Welding includes electric welding, gas welding, carbon dioxide shielded welding, and argon arc welding. It is a technology that uses high temperature to liquefy and bond metals. The existing welding technology is very mature and is often used in various construction and ironwork construction as well as metal processing in factories. During the welding process, the requirements for the welding gap (commonly known as the weld) are extremely strict. Since metal parts are prone to soften and deform during welding and heating, a mold for clamping the welding workpiece is required for both construction site and factory processing to ensure that the metal workpiece will not deform due to its own gravity during the welding and heating process.

[0003] However, the existing welding clamping device has a complex structure and is only suitable for processing workpieces in factories. It is difficult to transport it to the construction site for processing and use, and it cannot meet the clamping position required for clamping and fixing parts of different shapes and sizes in actual needs, which is inconvenient for people to use.

[0004] Therefore, how to design a mechanical workpiece welding clamping device has become our current problem to be solved. Summary of the invention

[0005] The present invention is aimed at the above-mentioned deficiencies in the prior art and provides a disassembly and recovery device for power lithium batteries, which solves the problems that the existing clamping mechanism has a complex structure, a large mass, and is difficult to carry to the construction site for use; the clamping mechanism includes a clamping arm and an extension arm, which solves the problem that people need to clamp and fix different workpieces in different positions when welding, and the clamping device is difficult to clamp, thereby facilitating people to use it in various occasions and for processing various different workpieces.

[0006] To achieve the above purpose, the invention provides the following technical solutions:

[0007] 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein said linking rod and said adjusting base are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said linking rod. said linking rod and said adjusting base are pivotally connected to said linking rod. said linking rod and said adjusting base are pivotally connected to said linking rod.

[0008] Preferably, the height lifting rod includes a mother rod and a child rod, the child rod is inserted into the mother rod, and the bottom of the mother rod is welded and fixed to the top of the device carrier plate, the mother rod and the child rod are both square steel tubes, and one side of the mother rod and the child rod are pressed with a groove that is concave inward.

[0009] Preferably, at least two fixing bolts are provided on one side of the mother rod, and the fixing bolts penetrate the side wall of the mother rod and fit with the outer wall of the sub-rod, and nuts are welded and fixed on the outer side of the mother rod at the fixing bolts.

[0010] Preferably, the rotating mechanism is a rotating shaft, an L-shaped fixing plate is provided on one side of the top of the height lifting rod, a hexagonal through hole is opened in the middle of the L-shaped fixing plate, a fixing rod is inserted into the inside of the hexagonal through hole, and the horizontal extension line projection of the hexagonal through hole coincides with the axis of the rotating shaft.

[0011] Preferably, a flexible sleeve is sleeved on the outside of one end of the fixing rod, one side of the flexible sleeve is located on the outside of the fixing rod and has a hexagonal fixing block corresponding to the hexagonal through hole, the other end of the fixing rod is vertically folded with an embedded rod parallel to the fixing rod, and a circular hole matching the embedded rod is opened on one side of the outer axis of the rotating shaft.

[0012] Preferably, a frame plate is provided at the top end of the height lifting rod and adjacent to the L-shaped fixing plate, and one side of the frame plate is tightly welded and fixed to the height lifting rod.

[0013] Preferably, a ground wire connection bolt is provided on the top side of the device carrier board, and the bottom of the ground wire connection bolt is tightly welded and fixed to the device carrier board.

[0014] Compared with the prior art, the invention has the following beneficial effects:

[0015] 1. The mechanical workpiece welding clamping device is composed of a stable welding clamping device through a height lifting rod, a rotating mechanism and a clamping mechanism, which solves the problem that the existing clamping mechanism is complex in structure, heavy in weight and difficult to carry to the construction site for use; the clamping mechanism includes a clamping arm and an extension arm, which solves the problem that people need to clamp and fix different workpieces in different positions when welding, and the clamping device is difficult to clamp, thereby facilitating people to use it in various occasions and process various different workpieces, and facilitating people's use.

[0016] 2. The mechanical workpiece welding clamping device has an L-shaped fixing plate on one side of the rotating mechanism, and a fixing rod is inserted into the L-shaped fixing plate, which solves the problem that the existing clamping mechanism has a complex structure and the fixing device is easily damaged. Therefore, the rotating fixing mechanism of the present invention can effectively and simply limit the rotating mechanism and prevent the rotating mechanism from loosening during welding.

[0017] 3. The mechanical workpiece welding clamping device has a clamping block and a limit block, which solves the problem that the extension arm inside the clamping arm is not stable after extension, which may cause the welding point to deviate during welding. The extension length of the extension arm is limited to avoid the extension arm extending too long, causing the clamping arm to be unstable and shake, which affects people's welding work.

[0018] 4. The mechanical workpiece welding clamping device has a frame plate, which solves the problem that the bottom of a regular mechanical workpiece cannot be supported during welding, so that a single-sided regular mechanical workpiece can be placed on the frame plate during welding and clamped and fixed by the clamping arm, further improving the stability of the mechanical workpiece during welding and facilitating people's welding work.

[0019] 5. The mechanical workpiece welding clamping device has grooves pressed inward on one side of the sub-rod and the mother rod, which solves the problem of instability of the height lifting rod when the clamping mechanism is raised, so that the sub-rod of the height lifting rod can rise in the direction of the same vertical line as the mother rod, ensuring the firmness of the device during debugging and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 is a bottom AA cross-sectional view of the present invention;

[0022] Figure 3 It is an enlarged view of the structure at B of the present invention;

[0023] Figure 4 It is a schematic diagram of the fixing rod structure of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the clamping mechanism of the present invention.

[0025] In the figure: 1-device carrier plate; 2-height lifting rod; 3-rotating mechanism; 4-clamping mechanism; 5-clamping mechanism base; 6-rack plate; 7-ground wire connection bolt; 8-fixing bolt; 9-nut; 201-sub-rod; 202-mother rod; 203-groove; 301-rotating shaft; 302-L-shaped fixing plate; 303-hexagonal through hole; 304-fixing rod; 305-flexible sleeve; 306-hexagonal fixing block; 307-embedded lever; 401-connecting block; 402-arc-shaped opening holder; 403-clamping arm; 404-extension arm; 405-fixing screw; 406-block; 407-limiting block. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1

[0027] like Figure 1-5 As shown, a mechanical workpiece welding clamping device comprises a device carrier plate 1, a height lifting rod 2, a rotating mechanism 3 and a clamping mechanism 4. The upper side of the device carrier plate 1 is provided with a height lifting rod 2, and the top of the height lifting rod 2 is provided with a clamping mechanism base 5. The rotating mechanism 3 is provided between the clamping mechanism base 5 and the height lifting rod 2. The height lifting rod 2 and the clamping mechanism base 5 are hinged through the rotating mechanism 3. The top of the clamping mechanism base 5 is tightly fixed with the clamping mechanism 4. It includes a connecting block 401, an arc-shaped opening clamping seat 402 and a clamping arm 403. A connecting block 401 is provided on one side of the arc-shaped opening clamping seat 402, and a clamping arm 403 is provided on the other side of the arc-shaped opening clamping seat 402. An extension arm 404 is installed inside the clamping arm 403. Fixing screws 405 are respectively passed through the inside of the clamping arm 403 and the extension arm 404. One end of the extension arm 404 located inside the clamping arm 403 is folded outward to have a clamping block 406. A limit block 407 is provided inside the clamping arm 403, and the limit block 407 is located in the middle of the inner wall of the clamping arm 403. Example 2

[0028] A mechanical workpiece welding clamping device, comprising a device carrier plate 1, a height lifting rod 2, a rotating mechanism 3 and a clamping mechanism 4, wherein the upper side of the device carrier plate 1 is provided with a height lifting rod 2, and the height lifting rod 2 A clamping mechanism base 5 is provided at the top, a rotating mechanism 3 is provided between the clamping mechanism base 5 and the height lifting rod 2, the height lifting rod 2 and the clamping mechanism base 5 are hinged through the rotating mechanism 3, and a clamping mechanism 4 is tightly fixed to the top of the clamping mechanism base 5, the clamping mechanism 4 comprises a connecting block 401, an arc-shaped opening clamping seat 402 and a clamping arm 403, a connecting block 401 is provided on one side of the arc-shaped opening clamping seat 402, and a clamping arm 403 is provided on the other side of the arc-shaped opening clamping seat 402, an extension arm 404 is sleeved inside the clamping arm 403, and fixing screws 405 are respectively passed through the insides of the clamping arm 403 and the extension arm 404, and one end of the extension arm 404 located inside the clamping arm 403 is folded outward with a clamping block 406, a limit block 407 is provided inside the clamping arm 403, and the limit block 407 is located in the middle of the inner wall of the clamping arm 403.

[0029] Preferably, the height lifting rod 2 includes a mother rod 201 and a child rod 202, the child rod 202 is inserted into the mother rod 201, and the bottom of the mother rod 201 is welded and fixed to the top of the device carrier plate 1, the mother rod 201 and the child rod 202 are both square steel tubes, and one side of the mother rod 201 and the child rod 202 are pressed with a groove 203 that is recessed inward. Example 3

[0030] A mechanical workpiece welding clamping device, comprising a device carrier plate 1, a height lifting rod 2, a rotating mechanism 3 and a clamping mechanism 4, wherein the upper side of the device carrier plate 1 is provided with a height lifting rod 2, and the height lifting rod 2 A clamping mechanism base 5 is provided at the top, a rotating mechanism 3 is provided between the clamping mechanism base 5 and the height lifting rod 2, the height lifting rod 2 and the clamping mechanism base 5 are hinged through the rotating mechanism 3, and a clamping mechanism 4 is tightly fixed to the top of the clamping mechanism base 5, the clamping mechanism 4 comprises a connecting block 401, an arc-shaped opening clamping seat 402 and a clamping arm 403, a connecting block 401 is provided on one side of the arc-shaped opening clamping seat 402, and a clamping arm 403 is provided on the other side of the arc-shaped opening clamping seat 402, an extension arm 404 is sleeved inside the clamping arm 403, and fixing screws 405 are respectively passed through the insides of the clamping arm 403 and the extension arm 404, and one end of the extension arm 404 located inside the clamping arm 403 is folded outward with a clamping block 406, a limit block 407 is provided inside the clamping arm 403, and the limit block 407 is located in the middle of the inner wall of the clamping arm 403.

[0031] Preferably, at least two fixing bolts 8 are provided on one side of the mother rod 201 , and the fixing bolts 8 penetrate the side wall of the mother rod 201 and fit the outer wall of the sub-rod 202 . Nuts 9 are welded and fixed to the mother rod 201 at the fixing bolts 8 . Example 4

[0032] A mechanical workpiece welding clamping device, comprising a device carrier plate 1, a height lifting rod 2, a rotating mechanism 3 and a clamping mechanism 4, wherein the upper side of the device carrier plate 1 is provided with a height lifting rod 2, and the height lifting rod 2 A clamping mechanism base 5 is provided at the top, a rotating mechanism 3 is provided between the clamping mechanism base 5 and the height lifting rod 2, the height lifting rod 2 and the clamping mechanism base 5 are hinged through the rotating mechanism 3, and a clamping mechanism 4 is tightly fixed to the top of the clamping mechanism base 5, the clamping mechanism 4 comprises a connecting block 401, an arc-shaped opening clamping seat 402 and a clamping arm 403, a connecting block 401 is provided on one side of the arc-shaped opening clamping seat 402, and a clamping arm 403 is provided on the other side of the arc-shaped opening clamping seat 402, an extension arm 404 is sleeved inside the clamping arm 403, and fixing screws 405 are respectively passed through the insides of the clamping arm 403 and the extension arm 404, and one end of the extension arm 404 located inside the clamping arm 403 is folded outward with a clamping block 406, a limit block 407 is provided inside the clamping arm 403, and the limit block 407 is located in the middle of the inner wall of the clamping arm 403.

[0033] Preferably, the rotating mechanism 3 is a rotating shaft 301, and an L-shaped fixing plate 302 is provided on one side of the top of the height lifting rod 2, a hexagonal through hole 303 is opened in the middle of the L-shaped fixing plate 302, a fixing rod 304 is inserted into the inside of the hexagonal through hole 303, and the horizontal extension line projection of the hexagonal through hole 303 coincides with the axis of the rotating shaft 301. Example 5

[0034] A mechanical workpiece welding clamping device, comprising a device carrier plate 1, a height lifting rod 2, a rotating mechanism 3 and a clamping mechanism 4, wherein the upper side of the device carrier plate 1 is provided with a height lifting rod 2, and the height lifting rod 2 A clamping mechanism base 5 is provided at the top, a rotating mechanism 3 is provided between the clamping mechanism base 5 and the height lifting rod 2, the height lifting rod 2 and the clamping mechanism base 5 are hinged through the rotating mechanism 3, and a clamping mechanism 4 is tightly fixed to the top of the clamping mechanism base 5, the clamping mechanism 4 comprises a connecting block 401, an arc-shaped opening clamping seat 402 and a clamping arm 403, a connecting block 401 is provided on one side of the arc-shaped opening clamping seat 402, and a clamping arm 403 is provided on the other side of the arc-shaped opening clamping seat 402, an extension arm 404 is sleeved inside the clamping arm 403, and fixing screws 405 are respectively passed through the insides of the clamping arm 403 and the extension arm 404, and one end of the extension arm 404 located inside the clamping arm 403 is folded outward with a clamping block 406, a limit block 407 is provided inside the clamping arm 403, and the limit block 407 is located in the middle of the inner wall of the clamping arm 403.

[0035] Preferably, a flexible sleeve 305 is externally sleeved at one end of the fixed rod 304, and one side of the flexible sleeve 305 is located on the outside of the fixed rod 304 and has a hexagonal fixing block 306 corresponding to the hexagonal through hole 303, and the other end of the fixed rod 304 is vertically folded to have an embedded rod 307 parallel to the fixed rod 304, and a circular hole matching the embedded rod 307 is opened on one side of the outer axis of the rotating shaft 301. Example 6

[0036] A mechanical workpiece welding clamping device, comprising a device carrier plate 1, a height lifting rod 2, a rotating mechanism 3 and a clamping mechanism 4, wherein the upper side of the device carrier plate 1 is provided with a height lifting rod 2, and the height lifting rod 2 A clamping mechanism base 5 is provided at the top, a rotating mechanism 3 is provided between the clamping mechanism base 5 and the height lifting rod 2, the height lifting rod 2 and the clamping mechanism base 5 are hinged through the rotating mechanism 3, and a clamping mechanism 4 is tightly fixed to the top of the clamping mechanism base 5, the clamping mechanism 4 comprises a connecting block 401, an arc-shaped opening clamping seat 402 and a clamping arm 403, a connecting block 401 is provided on one side of the arc-shaped opening clamping seat 402, and a clamping arm 403 is provided on the other side of the arc-shaped opening clamping seat 402, an extension arm 404 is sleeved inside the clamping arm 403, and fixing screws 405 are respectively passed through the insides of the clamping arm 403 and the extension arm 404, and one end of the extension arm 404 located inside the clamping arm 403 is folded outward with a clamping block 406, a limit block 407 is provided inside the clamping arm 403, and the limit block 407 is located in the middle of the inner wall of the clamping arm 403.

[0037] Preferably, a frame plate 6 is provided at the top end of the height lifting rod 2 adjacent to the L-shaped fixing plate 302 , and one side of the frame plate 6 is tightly welded and fixed to the height lifting rod 2 . Example 7

[0038] A mechanical workpiece welding clamping device, comprising a device carrier plate 1, a height lifting rod 2, a rotating mechanism 3 and a clamping mechanism 4, wherein the upper side of the device carrier plate 1 is provided with a height lifting rod 2, and the height lifting rod 2 A clamping mechanism base 5 is provided at the top, a rotating mechanism 3 is provided between the clamping mechanism base 5 and the height lifting rod 2, the height lifting rod 2 and the clamping mechanism base 5 are hinged through the rotating mechanism 3, and a clamping mechanism 4 is tightly fixed to the top of the clamping mechanism base 5, the clamping mechanism 4 comprises a connecting block 401, an arc-shaped opening clamping seat 402 and a clamping arm 403, a connecting block 401 is provided on one side of the arc-shaped opening clamping seat 402, and a clamping arm 403 is provided on the other side of the arc-shaped opening clamping seat 402, an extension arm 404 is sleeved inside the clamping arm 403, and fixing screws 405 are respectively passed through the insides of the clamping arm 403 and the extension arm 404, and one end of the extension arm 404 located inside the clamping arm 403 is folded outward with a clamping block 406, a limit block 407 is provided inside the clamping arm 403, and the limit block 407 is located in the middle of the inner wall of the clamping arm 403.

[0039] Preferably, a grounding plug 7 is provided on the top side of the device carrier 1 , and the bottom of the grounding plug 7 is tightly welded and fixed to the device carrier 1 .

[0040] When in use, first slightly pull out the fixing rod 304, and take the hexagonal fixing block 306 out of the hexagonal through hole 303 as the standard, move the clamping mechanism base 5, adjust the angle of the clamping mechanism base 5, and then turn the knob fixing bolt 8, and adjust the overall height of the clamping device by adjusting the height of the sub-rod 202, and then adjust the length of the extension arm 404 in the clamping arm 403 according to actual conditions to achieve the purpose of adjusting the clamping position, and finally place the mechanical workpiece between the two clamping arms 403, tighten the fixing screw 405, so that the end of the fixing screw 405 is completely in contact with the mechanical workpiece, and place the ground wire on the ground wire connection bolt 7. When one side of the mechanical workpiece to be processed is a plane, it only needs to be placed with the plane facing down on the upper side of the frame plate 5, and then the angle and clamping force of the clamping arm 403 can be readjusted. 1. The mechanical workpiece welding clamping device is composed of a stable welding clamping device through a height lifting rod 2, a rotating mechanism 3 and a clamping mechanism 4, which solves the problem that the existing clamping mechanism is complex in structure, heavy in weight and difficult to carry to the construction site for use; the clamping mechanism includes a clamping arm 403 and an extension arm 404, which solves the problem that people need to clamp and fix different workpieces in different positions when welding, and the clamping device is difficult to clamp, thereby facilitating people to use it in various occasions and process various different workpieces. The mechanical workpiece welding clamping device has an L-shaped fixing plate 302 on one side of the rotating mechanism 3, and a fixing rod 304 is inserted in the L-shaped fixing plate 302, which solves the problem that the existing clamping mechanism is complex in structure and the fixing device is easily damaged, so that the rotating fixing mechanism of the present invention effectively and simply limits the rotating mechanism 3 to prevent the rotating mechanism 3 from loosening during the welding process. The mechanical workpiece welding clamping device has a clamping block 406 and a limit block 407, which solves the problem that the extension arm 404 inside the clamping arm 403 is not stable after extension, which may cause the welding point to deviate during welding, so that the extension length of the extension arm 404 is limited, and the extension arm 404 is prevented from extending too long, causing the clamping arm 403 to be unstable and shake, which affects people's welding work. The mechanical workpiece welding clamping device has a frame plate 5, which solves the problem that the bottom of a regular mechanical workpiece cannot be supported during welding, so that a single-sided regular mechanical workpiece can be placed on the frame plate 5 during welding and clamped and fixed by the clamping arm 403, further improving the stability of the mechanical workpiece during welding and facilitating people's welding work. The mechanical workpiece welding clamping device has a groove 203 pressed inwardly on one side of the sub-rod 202 and the mother rod 201, which solves the problem of instability of the height lifting rod 2 when the clamping mechanism is raised, so that the sub-rod 202 of the height lifting rod 2 can rise in the direction of the same vertical line as the mother rod 201, ensuring the firmness of the device during debugging and use.

[0041] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A mechanical workpiece welding clamping device, comprising a device carrier plate (1), a height lifting rod (2), a rotating mechanism (3) and a clamping mechanism (4), characterized in that: A height lifting rod (2) is provided on the upper side of the device carrier plate (1); a clamping mechanism base (5) is provided at the top end of the height lifting rod (2); a rotating mechanism (3) is provided between the clamping mechanism base (5) and the height lifting rod (2); the height lifting rod (2) and the clamping mechanism base (5) are hinged via the rotating mechanism (3); a clamping mechanism (4) is tightly fixed to the top end of the clamping mechanism base (5); the clamping mechanism (4) comprises a connecting block (401), an arc-shaped opening clamping seat (402) and a clamping arm (403); the arc-shaped opening clamping seat (402) is provided with a clamping mechanism base (403); ) is provided with a connecting block (401) on one side, and a clamping arm (403) is provided on the other side of the arc-shaped opening clamping seat (402), and an extension arm (404) is sleeved inside the clamping arm (403), and fixing screws (405) are respectively passed through the inside of the clamping arm (403) and the extension arm (404), and a clamping block (406) is folded outward at one end of the extension arm (404) located inside the clamping arm (403), and a limit block (407) is provided inside the clamping arm (403), and the limit block (407) is located in the middle of the inner wall of the clamping arm (403); The height lifting rod (2) comprises a mother rod (201) and a sub-rod (202), wherein the sub-rod (202) is sleeved inside the mother rod (201), and the bottom of the mother rod (201) is welded and fixed to the top of the device carrier plate (1), the mother rod (201) and the sub-rod (202) are both square steel tubes, and one side of the mother rod (201) and the sub-rod (202) are pressed with an inwardly concave groove (203); The rotating mechanism (3) is a rotating shaft (301), and an L-shaped fixing plate (302) is provided on one side of the top of the height lifting rod (2). A hexagonal through hole (303) is provided in the middle of the L-shaped fixing plate (302). A fixing rod (304) is inserted into the inside of the hexagonal through hole (303), and the horizontal extension line projection of the hexagonal through hole (303) coincides with the axis of the rotating shaft (301).

2. A mechanical workpiece welding clamping device as claimed in claim 1, characterized in that: At least two fixing bolts (8) are provided on one side of the mother rod (201), and the fixing bolts (8) penetrate the side wall of the mother rod (201) and fit the outer wall of the sub-rod (202). Nuts (9) are welded and fixed on the mother rod (201) at the fixing bolts (8).

3. A mechanical workpiece welding clamping device as claimed in claim 1, characterized in that: A flexible sleeve (305) is sleeved on the outside of one end of the fixing rod (304); one side of the flexible sleeve (305) is located on the outside of the fixing rod (304) and has a hexagonal fixing block (306) corresponding to the hexagonal through hole (303); the other end of the fixing rod (304) is vertically folded to have an embedded rod (307) parallel to the fixing rod (304); and one side of the outer axis of the rotating shaft (301) is provided with a circular hole matching the embedded rod (307).

4. A mechanical workpiece welding clamping device as claimed in claim 1, characterized in that: A frame plate (6) is provided at the top end of the height lifting rod (2) adjacent to the L-shaped fixing plate (302), and one side of the frame plate (6) is tightly welded and fixed to the height lifting rod (2).

5. A mechanical workpiece welding clamping device as claimed in claim 1, characterized in that: A grounding plug (7) is provided on the top side of the device carrier plate (1), and the bottom of the grounding plug (7) is tightly welded and fixed to the device carrier plate (1).

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