Welding tool for forklift truck pallet fork machining

Abstract

The welding tool comprises a base, a steering shaft is rotationally connected to the right side of the top of the base, a workbench is connected to the top of the steering shaft, a plurality of supporting tables are connected to the top of the workbench in the circumferential direction, and assembling grooves are formed in the tops of the supporting tables; a pallet fork assembly abuts against the interior of the assembling groove, an operation shell is connected to the left side of the top of the base, and a PLC is connected to the outer wall of the operation shell. The device is reasonable in structural design, easy and convenient to operate, beneficial to improving the working efficiency, stable and reliable, and beneficial to maintaining a good working environment.

Description

Technical Field

[0001] The invention relates to the technical field of welding tooling, and in particular to a welding tooling for processing a forklift fork. Background Art

[0002] Forklifts are industrial handling vehicles, which refer to various wheeled handling vehicles for loading and unloading, stacking and short-distance transportation of palletized goods. Forklifts mainly use the forks at the front to complete the picking operation. The forks are usually composed of L-shaped horizontal and vertical sections. The horizontal section of the fork is the working part for placing the goods, and the vertical section is the supporting part. A shaft sleeve is set on the vertical section to facilitate the position adjustment and movement in coordination with the fork frame.

[0003] During the production and processing of forks, it is necessary to weld the hooks and other parts of the forks. During the welding process, the forks need to be kept stable and immobile to better perform the welding work. The existing fork welding tooling is unstable in clamping the horizontal section, vertical section and sleeve of the fork. After welding, the verticality of the horizontal section and the vertical section is low, resulting in poor stability when the fork lifts the goods.

[0004] To this end, technicians in this field have conducted research and improvements, such as a fork welding tool with application number CN202320697719.X. This technical solution sets a first placement table and a second placement table to place the horizontal and vertical sections of the fork respectively, which is convenient for positioning the horizontal and vertical sections, and cooperates with the first clamping assembly and the second clamping assembly to clamp and fix the horizontal and vertical sections respectively, ensuring that the relative position of the horizontal and vertical sections will not change during welding. However, this technical solution still has shortcomings. Frequent loading and unloading is required for batch welding, which affects the overall work efficiency, and multiple drive cylinders need to be set for positioning and clamping, which increases equipment costs. To this end, we proposed a welding tool for forklift fork processing. Summary of the invention

[0005] The purpose of the present invention is to provide a welding tool for machining forklift forks, so as to overcome the technical problems existing in the prior art.

[0006] In order to achieve the above technical objectives and the above technical effects, the present invention provides the following technical solutions:

[0007] A welding tool for processing forks of a forklift truck comprises a base, a steering shaft is rotatably connected to the right side of the top of the base, a workbench is connected to the top of the steering shaft, a plurality of support platforms are circumferentially connected to the top of the workbench, an assembly groove is formed on the top of the support platform, a fork assembly is abutted in the assembly groove, an operating shell is connected to the left side of the top of the base, and a PLC controller is connected to the outer wall of the operating shell.

[0008] Preferably, in a welding tool for processing forks of a forklift, a steering motor is connected to the top of the base, the output end of the steering motor is connected to a bevel gear, the outer wall of the steering shaft is connected to a bevel gear ring, the bevel gear is meshedly connected to the bevel gear ring, a hydraulic rod is connected to the left side of the top of the base, one end of the hydraulic rod extending out of the operating shell is connected to a U-shaped seat, the opening of the U-shaped seat is rotatably connected to a reciprocating shaft, the outer wall of the reciprocating shaft is connected to a fixed seat, the upper end of the fixed seat is connected to a welding robot, the left end of the reciprocating shaft is connected to a worm gear, the outer wall of the U-shaped seat is connected to a worm motor, the output end of the worm motor is connected to a worm, the worm is meshedly connected to the worm gear, and the steering motor, hydraulic rod and welding robot are all electrically connected to a PLC controller.

[0009] Preferably, in a welding tool for machining forks of a forklift, the axis center line of the reciprocating shaft is arranged perpendicular to the axis center line of the steering shaft.

[0010] Preferably, in a welding tool for processing forks of a forklift, a plurality of limit grooves are provided in the circumferential direction of the outer side of the top of the workbench, and the limit grooves are arranged in a cross structure. A double-headed screw is rotatably connected to the longitudinal part of the limit groove, and a second bevel gear ring is connected to the middle part of the outer wall of the double-headed screw, and a nut seat is symmetrically screwed on both sides of the outer wall of the double-headed screw, and an L-shaped rod is connected to the top of the nut seat, and a conical block is connected to the horizontal end of the L-shaped rod, and a storage seat is connected to the bottom of the outer wall of the support platform, and a V-shaped groove is provided on the top of the storage seat, and the two conical blocks are symmetrically arranged on both sides of the V-shaped groove, and a guide frame is connected to the lower part of the outer wall of the support platform.

[0011] Preferably, in a welding tool for processing forks of a forklift, the circumferential outer side wall of the workbench is rotatably connected to a plurality of crank handles, one end of the crank handle extending into the limit groove is connected to an active screw rod, the end of the active screw rod is connected to bevel gear 2, the bevel gear 2 is meshingly connected to bevel gear ring 2, the outer wall of the active screw rod is threaded with nut seat 2, the top of the nut seat 2 is connected to an oblique support rod, and the upper end of the oblique support rod is connected to a lateral pressure block.

[0012] Preferably, in a welding tool for processing forks of a forklift, a vertical through groove is opened in the support table, a vertical screw rod is rotatably connected in the vertical through groove, a nut seat three is screwed on the outer wall of the vertical screw rod, the outer walls of the nut seat three are commonly connected to a frame at the front and back, the lower end of the vertical screw rod extending into the limit groove is connected to bevel gear three, the inner wall of the limit groove close to the center of the workbench is rotatably connected to a transmission shaft, the end of the transmission shaft is connected to bevel gear four, the bevel gear four is meshingly connected to bevel gear ring two, the middle part of the outer wall of the transmission shaft is connected to bevel gear ring three, and the bevel gear ring three is meshingly connected to bevel gear three.

[0013] Preferably, in a welding tool for processing forks of a forklift, the frame includes two side support rods, the lower part of the side support rods is fixedly connected to the three outer walls of the nut seat, the upper ends of the two side support rods are commonly connected to a T-shaped rod, and the bottom of the T-shaped rod is connected to a transverse pressure block.

[0014] Preferably, in a welding tool for processing forks of a forklift, the fork assembly includes a shaft sleeve, a vertical portion, a horizontal portion and a transition section, the lower end of the vertical portion is provided with an arc opening, the assembly groove includes a right-angle deep groove and a horizontal shallow groove, the horizontal shallow groove is connected to the end of the right-angle deep groove, magnetic blocks are embedded in the right-angle deep groove and the horizontal shallow groove, and the transition section abuts against the inner wall of the right-angle deep groove.

[0015] Preferably, in a welding tool for machining forks of a forklift, the lateral pressing block is located above the guide frame, and the transverse pressing block is located above the transverse shallow groove.

[0016] Preferably, in a welding tool for processing forks of a forklift, an annular seat is provided below the workbench, a column is connected between the annular seat and the base, an annular raceway is symmetrically opened between the annular seat and the workbench, a plurality of metal steel balls are installed in the annular raceway, an air bleed hood is connected to the left side of the bottom wall of the annular seat, a filter cartridge is connected to the bottom of the air bleed hood, a filter element is installed in the filter cartridge, an induced draft fan is installed at the lower end of the filter cartridge, and the induced draft fan is electrically connected to a PLC controller.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The structural design of the present invention is reasonable. A plurality of support platforms are connected to the top of the workbench. The fork assembly is placed in the assembly groove. The bevel gear is meshed with the bevel gear ring to drive the workbench to deflect. The steering shaft drives the workbench to deflect, so that the station switching of the support platform can be completed. The height of the U-shaped seat is adjusted by a hydraulic rod. The fork assembly is welded by a welding robot. The worm is meshed with the worm gear to drive the reciprocating shaft to deflect the fixed seat. The angle position of the welding robot can be adjusted, which is convenient for welding the two sides of the fork assembly. The operation is simple and conducive to improving work efficiency.

[0019] 2. The present invention places the transition section against the inner wall of the right-angle deep groove, places the shaft sleeve in the V-shaped groove of the storage seat, the vertical part against the vertical horizontal shallow groove, and the arc mouth against the shaft sleeve below. The active screw is driven to rotate by the crank, and the oblique support rod moves synchronously with the nut seat 2. The lateral pressure block can press and limit the vertical part. The bevel gear 2 is meshed with the bevel gear ring 2. After the double-headed screw rotates, the two nut seats 1 move closer, and the conical block can clamp and limit the shaft sleeve, which is stable and reliable.

[0020] 3. In the present invention, the horizontal part of the fork assembly is placed in a horizontal shallow groove, one end of the horizontal part abuts against the vertical part, and the bevel gear ring 2, bevel gear 4, transmission shaft, bevel gear ring 3, bevel gear 3 and vertical screw rod cooperate to drive, so that the nut seat 3 drives the frame to move, and the horizontal pressure block can press and limit the horizontal part, which is convenient for subsequent welding;

[0021] 4. The present invention utilizes an annular seat to provide auxiliary support for the dry workbench, which is beneficial to improving the stability of welding work, and utilizes an induced draft fan in conjunction with a filter element to pull and purify welding fumes, which is beneficial to maintaining a good working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0024] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0025] Figure 3 It is a front structural schematic diagram of the present invention;

[0026] Figure 4 It is a structural schematic diagram of the U-shaped seat in the present invention;

[0027] Figure 5 It is a schematic diagram of the top view of the working table in the present invention;

[0028] Figure 6 It is a schematic diagram of the top view of the middle limit groove in the present invention;

[0029] Figure 7 Based Figure 1 A local enlarged schematic diagram of the middle A;

[0030] Figure 8 It is a structural schematic diagram of the support platform in the present invention;

[0031] Fig. 9 It is a structural schematic diagram of the medium-sized frame of the present invention;

[0032] Fig.10 It is a structural schematic diagram of the fork assembly in the present invention;

[0033] Fig.11 It is a schematic diagram of the internal structure of the air bleed hood in the present invention.

[0034] In the figure: 1. base; 2. steering shaft; 3. workbench; 4. support table; 5. assembly groove; 6. fork assembly; 7. operating shell; 8. U-shaped seat; 9. crank handle; 11. steering motor; 12. bevel gear one; 13. hydraulic rod; 21. bevel gear ring one; 22. annular seat; 23. column; 24. annular raceway; 25. metal steel ball; 26. induced air hood; 27. filter cartridge; 28. filter element; 29. ​​induced draft fan; 30. smoke hole; 31. limit groove; 32. double-headed screw; 33. bevel gear ring two; 34. nut seat one; 35. L-shaped rod; 36. cone block; 37. transmission shaft; 38. bevel gear four; 39. bevel gear ring three; 4 1. Storage seat; 42. V-shaped groove; 43. Vertical through groove; 44. Vertical screw; 45. Nut seat three; 46. Frame; 47. Bevel gear three; 48. Guide frame; 51. Right-angle deep groove; 52. Horizontal shallow groove; 53. Magnetic block; 61. Bushing; 62. Vertical part; 63. Horizontal part; 64. Transition section; 65. Arc mouth; 81. Reciprocating shaft; 82. Fixed seat; 83. Welding robot; 84. Worm gear; 85. Worm motor; 86. Worm; 91. Active screw; 92. Bevel gear two; 93. Nut seat two; 94. Oblique support rod; 95. Lateral pressure block; 461. Lateral support rod; 462. T-rod; 463. Horizontal pressure block. DETAILED DESCRIPTION

[0035] 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.

[0036] Embodiment 1

[0037] See also Figure 1-11 As shown, this embodiment is a welding tool for forklift fork processing, including a base 1, a steering shaft 2 is rotatably connected to the top right side of the base 1, a workbench 3 is connected to the top of the steering shaft 2, a plurality of support platforms 4 are circumferentially connected to the top of the workbench 3, an assembly groove 5 is opened on the top of the support platform 4, a fork assembly 6 is abutted in the assembly groove 5, an operating shell 7 is connected to the top left side of the base 1, and a PLC controller is connected to the outer wall of the operating shell 7.

[0038] A steering motor 11 is connected to the top of the base 1, and a bevel gear 12 is connected to the output end of the steering motor 11. A bevel gear ring 21 is connected to the outer wall of the steering shaft 2, and the bevel gear 12 is meshedly connected to the bevel gear ring 21. A hydraulic rod 13 is connected to the left side of the top of the base 1, and one end of the hydraulic rod 13 extending out of the operating shell 7 is connected to a U-shaped seat 8, and the opening of the U-shaped seat 8 is rotatably connected to a reciprocating shaft 81, and the outer wall of the reciprocating shaft 81 is connected to a fixed seat 82, and the upper end of the fixed seat 82 is connected to a welding robot 83, and the left end of the reciprocating shaft 81 is connected to a worm wheel 84, and the outer wall of the U-shaped seat 8 is connected to a worm motor 85, and the output end of the worm motor 85 is connected to a worm 86, and the worm 86 is meshedly connected to the worm wheel 84. The steering motor 11, the hydraulic rod 13 and the welding robot 83 are all electrically connected to a PLC controller.

[0039] The axis center line of the reciprocating shaft 81 is arranged perpendicular to the axis center line of the steering shaft 2, so as to facilitate the welding robot 83 to perform welding processing on the fork.

[0040] The specific implementation of this embodiment is as follows:

[0041] When the device is in use, an external power supply is connected, the base 1 is placed on a plane, a plurality of support platforms 4 are connected to the top of the workbench 3, an assembly groove 5 is provided on the top of the support platform 4, the fork assembly 6 is placed in the assembly groove 5, and the PLC controller is used to control the operation of the electrical components, and the steering motor 11 drives the bevel gear 12 to rotate, and the bevel gear 12 engages with the transmission bevel gear ring 21, so that the steering shaft 2 drives the workbench 3 to deflect, and the station switching of the support platform 4 can be completed. When the station switching is performed, the hydraulic rod 13 is used to drive the U-shaped seat 8 to rise to avoid the welding robot 3 interfering with the station switching. After the station switching is completed, the hydraulic rod 13 drives the U-shaped seat 8 to descend and reset, and the welding robot 3 can be used to perform welding processing on the fork assembly 6. When the welding on one side of the fork assembly 6 is completed, the worm 86 is driven to rotate by the worm motor 85, and the worm 86 engages with the transmission worm wheel 84, so that the reciprocating shaft 81 drives the fixed seat 82 to deflect to the other side of the fork assembly 6, which is convenient for the welding robot 3 to complete the welding work on the other side, and the operation is simple.

[0042] Embodiment 2

[0043] On the basis of Example 1, a plurality of limit grooves 31 are circumferentially provided on the outer circumference of the top of the workbench 3, and the limit grooves 31 are arranged in a cross structure. The longitudinal part of the limit groove 31 is rotatably connected to a double-headed screw 32, and a bevel gear ring 2 33 is connected to the middle part of the outer wall of the double-headed screw 32. Nut seats 34 are symmetrically screwed on both sides of the outer wall of the double-headed screw 32, and an L-shaped rod 35 is connected to the top of the nut seat 34. The horizontal end of the L-shaped rod 35 is connected to a conical block 36. The bottom of the outer wall of the support platform 4 is connected to a storage seat 41, and a V-shaped groove 42 is provided on the top of the storage seat 41. The two conical blocks 36 are symmetrically arranged on both sides of the V-shaped groove 42, and the lower part of the outer wall of the support platform 4 is connected to a guide frame 48.

[0044] The fork assembly 6 includes a shaft sleeve 61, a vertical portion 62, a horizontal portion 63 and a transition section 64. The lower end of the vertical portion 62 is provided with an arc opening 65. The assembly groove 5 includes a right-angle deep groove 51 and a horizontal shallow groove 52. The horizontal shallow groove 52 is connected to the end of the right-angle deep groove 51. A magnetic block 53 is embedded in the right-angle deep groove 51 and the horizontal shallow groove 52. The transition section 64 abuts against the inner wall of the right-angle deep groove 51.

[0045] The outer circumferential wall of the workbench 3 is rotatably connected with a plurality of cranks 9, one end of the crank 9 extending into the limit groove 31 is connected with an active screw 91, the end of the active screw 91 is connected with a bevel gear 92, the bevel gear 92 is meshed with a bevel gear ring 33, the outer wall of the active screw 91 is screwed with a nut seat 93, the top of the nut seat 93 is connected with an oblique support rod 94, the upper end of the oblique support rod 94 is connected with a lateral pressure block 95

[0046] The specific implementation of this embodiment is as follows:

[0047] In this embodiment, when the fork assembly 6 is installed and positioned, the transition section 64 is firstly abutted against the inner wall of the right-angle deep groove 51, and the magnetic block 53 is used for magnetic adsorption, and the sleeve 61 is placed in the V-shaped groove 42 of the storage seat 41, and the vertical portion 62 is abutted against the vertical horizontal shallow groove 52, and the arc mouth 65 is abutted against the sleeve 61 below, and the vertical portion 62 is magnetically adsorbed by the magnetic block 53, and the active screw rod 91 is driven to rotate by the crank 9, so that the nut seat 2 93 moves laterally along the limiting groove 31, and the oblique support rod 94 moves synchronously with the nut seat 2 93, and the lateral pressure block 95 can press and limit the vertical portion 62, and the bevel gear 2 92 is meshed with the transmission bevel gear ring 2 33, so that the double-headed screw 32 rotates in the longitudinal part of the limiting groove 31, and the two nut seats 1 34 drive the L-shaped rod 35 to move closer, and the two conical blocks 36 can clamp and limit the sleeve 61 after the distance is shortened, which is stable and reliable.

[0048] Embodiment 3

[0049] On the basis of the second embodiment, a vertical through groove 43 is opened in the support table 4, and a vertical screw rod 44 is rotatably connected in the vertical through groove 43. The outer wall of the vertical screw rod 44 is threaded with a nut seat three 45, and the outer walls of the nut seat three 45 are commonly connected with a frame 46 at the front and back. The lower end of the vertical screw rod 44 extending into the limiting groove 31 is connected with a bevel gear three 47, and the inner wall of the limiting groove 31 close to the center of the workbench 3 is rotatably connected with a transmission shaft 37, and the end of the transmission shaft 37 is connected with a bevel gear four 38, and the bevel gear four 38 is meshed with the bevel gear ring two 33. The middle part of the outer wall of the transmission shaft 37 is connected with a bevel gear ring three 39, and the bevel gear ring three 39 is meshed with the bevel gear three 47.

[0050] The frame 46 includes two side support rods 461, the lower parts of the side support rods 461 are fixedly connected to the outer wall of the nut seat three 45, the upper ends of the two side support rods 461 are commonly connected to a T-shaped rod 462, and the bottoms of the T-shaped rods 462 are connected to a transverse pressing block 463.

[0051] The lateral pressing block 95 is located above the guide frame 48, and the transverse pressing block 463 is located above the transverse shallow groove 52 to avoid interference with the welding track.

[0052] An annular seat 22 is provided below the workbench 3, a column 23 is connected between the annular seat 22 and the base 1, an annular raceway 24 is symmetrically provided between the annular seat 22 and the workbench 3, a plurality of metal steel balls 25 are installed in the annular raceway 24, an air bleed hood 26 is connected to the left side of the bottom wall of the annular seat 22, a filter cartridge 27 is connected to the bottom of the air bleed hood 26, a filter element 28 is installed in the filter cartridge 27, an induced draft fan 29 is installed at the lower end of the filter cartridge 27, and the induced draft fan 29 is electrically connected to a PLC controller.

[0053] The specific implementation of this embodiment is as follows:

[0054] In this embodiment, the horizontal portion 63 is placed in the horizontal shallow groove 52, one end of the horizontal portion 63 abuts the vertical portion 62, and the bevel gear ring 2 33 is used to mesh with the transmission bevel gear 4 38, so that the transmission shaft 37 drives the bevel gear ring 3 39 to rotate, and the bevel gear ring 3 39 meshes with the transmission bevel gear 3 47. After the vertical screw 44 rotates, the nut seat 3 45 drives the frame 46 to move, and the horizontal pressing block 463 can press and limit the horizontal portion 63 to facilitate subsequent welding. An annular seat 22 is provided under the workbench 3, and an annular raceway 24 is symmetrically provided between the annular seat 22 and the workbench 3. Metal steel balls 25 are built in the annular raceway 24, which can provide auxiliary support for the workbench 3, avoid the workbench 3 from tilting and shaking, and improve the stability of the welding work. When welding, the induced draft fan 29 is turned on for airflow traction, and the dust-containing air generated by welding enters the induced draft hood 26 through the smoke hole 20, and is then filtered and purified by the filter element 28 in the filter cartridge 28 and discharged, which is conducive to maintaining a good working environment.

[0055] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0056] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A welding tool for forklift fork processing, comprising a base (1), characterized in that: The top right side of the base (1) is rotatably connected to a steering shaft (2), the top of the steering shaft (2) is connected to a workbench (3), the top of the workbench (3) is circumferentially connected to a plurality of support platforms (4), the top of the support platform (4) is provided with an assembly groove (5), a fork assembly (6) is abutted in the assembly groove (5), the top left side of the base (1) is connected to an operating shell (7), and the outer wall of the operating shell (7) is connected to a PLC controller.

2. A welding tool for forklift fork processing according to claim 1, characterized in that: The top of the base (1) is connected to a steering motor (11), the output end of the steering motor (11) is connected to a bevel gear (12), the outer wall of the steering shaft (2) is connected to a bevel gear ring (21), the bevel gear (12) is meshingly connected to the bevel gear ring (21), the top left side of the base (1) is connected to a hydraulic rod (13), one end of the hydraulic rod (13) extending out of the operating shell (7) is connected to a U-shaped seat (8), the opening of the U-shaped seat (8) is rotatably connected to a reciprocating shaft (81), the The outer wall of the reciprocating shaft (81) is connected to a fixed seat (82), the upper end of the fixed seat (82) is connected to a welding robot (83), the left end of the reciprocating shaft (81) is connected to a worm gear (84), the outer wall of the U-shaped seat (8) is connected to a worm motor (85), the output end of the worm motor (85) is connected to a worm (86), the worm (86) is meshedly connected to the worm gear (84), and the steering motor (11), the hydraulic rod (13) and the welding robot (83) are all electrically connected to a PLC controller.

3. A welding tool for forklift fork processing according to claim 2, characterized in that: The axis center line of the reciprocating shaft (81) is arranged perpendicular to the axis center line of the steering shaft (2).

4. The welding tool for forklift fork processing according to claim 1, characterized in that: A plurality of limiting grooves (31) are circumferentially provided on the outer side of the top of the workbench (3), and the limiting grooves (31) are arranged in a cross structure. The longitudinal part of the limiting groove (31) is rotatably connected to a double-headed screw (32), and the middle part of the outer wall of the double-headed screw (32) is connected to a second bevel gear ring (33). The outer walls of the double-headed screw (32) are symmetrically screwed with a nut seat (34) on both sides, and the top of the nut seat (34) is connected to an L-shaped rod (35), and the horizontal end of the L-shaped rod (35) is connected to a conical block (36). The bottom of the outer wall of the support platform (4) is connected to a storage seat (41), and the top of the storage seat (41) is provided with a V-shaped groove (42). The two conical blocks (36) are symmetrically arranged on both sides of the V-shaped groove (42). The lower part of the outer wall of the support platform (4) is connected to a guide frame (48).

5. The welding tool for forklift fork processing according to claim 4, characterized in that: The outer circumferential wall of the workbench (3) is rotatably connected to a plurality of crank handles (9); one end of the crank handle (9) extending into the limiting groove (31) is connected to an active screw rod (91); the end of the active screw rod (91) is connected to a second bevel gear (92); the second bevel gear (92) is meshingly connected to a second bevel gear ring (33); the outer wall of the active screw rod (91) is threadedly connected to a second nut seat (93); the top of the second nut seat (93) is connected to an oblique support rod (94); the upper end of the oblique support rod (94) is connected to a lateral pressure block (95).

6. The welding tool for forklift fork processing according to claim 5, characterized in that: A vertical through slot (43) is provided in the support platform (4), a vertical screw rod (44) is rotatably connected in the vertical through slot (43), a nut seat three (45) is screwed on the outer wall of the vertical screw rod (44), the outer wall of the nut seat three (45) is connected to a frame (46) at the front and rear, the lower end of the vertical screw rod (44) extending into the limiting slot (31) is connected to a bevel gear three (47), the inner wall of the limiting slot (31) close to the center of the workbench (3) is rotatably connected to a transmission shaft (37), the end of the transmission shaft (37) is connected to a bevel gear four (38), the bevel gear four (38) is meshedly connected to the bevel gear ring two (33), the middle part of the outer wall of the transmission shaft (37) is connected to a bevel gear ring three (39), the bevel gear ring three (39) is meshedly connected to the bevel gear three (47).

7. The welding tool for forklift fork processing according to claim 6, characterized in that: The frame (46) comprises two side support rods (461), the lower part of the side support rods (461) is fixedly connected to the outer wall of the nut seat three (45), the upper ends of the two side support rods (461) are commonly connected to a T-shaped rod (462), and the bottom of the T-shaped rod (462) is connected to a transverse pressing block (463).

8. The welding tool for forklift fork processing according to claim 7, characterized in that: The fork assembly (6) comprises a shaft sleeve (61), a vertical portion (62), a horizontal portion (63) and a transition section (64); an arc opening (65) is provided at the lower end of the vertical portion (62); the assembly groove (5) comprises a right-angle deep groove (51) and a horizontal shallow groove (52); the horizontal shallow groove (52) is connected to the end of the right-angle deep groove (51); magnetic blocks (53) are embedded in both the right-angle deep groove (51) and the horizontal shallow groove (52); and the transition section (64) abuts against the inner wall of the right-angle deep groove (51).

9. The welding tool for forklift fork processing according to claim 8, characterized in that: The lateral pressing block (95) is located above the guide frame (48), and the transverse pressing block (463) is located above the transverse shallow groove (52).

10. The welding tool for forklift fork processing according to claim 1, characterized in that: A plurality of smoke holes (30) are provided on the workbench (3); an annular seat (22) is provided below the workbench (3); a column (23) is connected between the annular seat (22) and the base (1); an annular raceway (24) is symmetrically provided between the annular seat (22) and the workbench (3); a plurality of metal steel balls (25) are installed in the annular raceway (24); an air bleed hood (26) is connected to the left side of the bottom wall of the annular seat (22); a filter cartridge (27) is connected to the bottom of the air bleed hood (26); a filter element (28) is installed in the filter cartridge (27); an induced draft fan (29) is installed at the lower end of the filter cartridge (27); and the induced draft fan (29) is electrically connected to a PLC controller.

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