Welding tool used for inflation wheel and provided with reinforcing plate shaft sleeve

Abstract

The welding tool comprises a bottom plate, a driving mechanism is fixedly arranged on the lower side of the bottom plate, a piston rod of the driving mechanism upwards penetrates through the bottom plate and is fixedly connected with a material pressing plate, a plurality of workpiece positioning seats with first groove holes with upward openings are fixedly arranged at the front end of the bottom plate, and positioning shafts are fixedly arranged in the centers of the bottoms of the first groove holes. An annular cavity surrounding the positioning shaft is formed in the workpiece positioning seat, a plurality of arc-shaped opening grooves with outward openings are formed in the pressing plate and correspondingly located above the workpiece positioning seat, the inner diameter of each arc-shaped opening groove is larger than the outer diameter of the workpiece positioning seat, and a plurality of pressing blocks extending to the position above the annular cavity are arranged on the upper side of the inner circumferential wall face of each arc-shaped opening groove at intervals. A spacer bush is fixedly arranged on the pressing plate, the top plate is fixedly arranged on the top of the spacer bush, a first downward guide column is fixedly arranged on the top plate, the lower end of the first guide column correspondingly penetrates through the spacer bush and the bottom plate, and an elastic crimping assembly corresponding to the workpiece positioning seat is arranged on the lower side of the top plate. The welding tool disclosed by the utility model is beneficial to improving the product precision and the welding efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of caster processing equipment, in particular to a welding tool with a reinforcing plate sleeve on an inflatable wheel. Background Art

[0002] Universal wheels, also known as casters, are a common mechanical accessory installed at the bottom of an appliance to make it easy and flexible to move. They are widely used in scaffolding, shelves, instruments, mechanical equipment, furniture and other fields. Pneumatic wheels are a type of caster. Figures 1-2 As shown, a reinforcing plate sleeve for an inflatable wheel includes a sleeve A and a ring plate B, wherein the ring plate B is radially sleeved and welded to the middle of the outer side of the sleeve A, countersunk step grooves C are formed at both ends of the sleeve A, and a plurality of mounting holes are arranged on the ring plate B in an annular direction. The traditional welding method of the reinforcing plate sleeve is manual operation, that is, the operator places the sleeve A vertically on the welding workbench, and then sleeves the ring plate B to the middle of the outer peripheral side of the sleeve A, supports the ring plate B with one hand, and holds the welding gun with the other hand to weld the annular joint position of the ring plate B and the sleeve A. The problems of traditional manual welding of the reinforcing plate sleeve are: it is greatly affected by human factors, and it is difficult to ensure that the ring plate is located in the middle position of the sleeve; the concentricity of the ring plate and the sleeve is poor, that is, the ring plate is prone to slight tilt relative to the sleeve, and the product precision is not high; the construction operability is not good, resulting in low welding efficiency. Summary of the invention

[0003] The purpose of the utility model is to overcome the defects in the prior art and provide a welding tool for a pneumatic wheel with a reinforcing plate sleeve, by inserting the sleeve on the positioning shaft and positioning the lower end thereof inside the annular cavity, then sleeve the ring plate on the positioning shaft and overlap the workpiece positioning seat, and utilize a driving mechanism to drive an elastic crimping assembly to be crimped on the corresponding upper end of the positioning shaft and a pressure block on the inner circumferential wall of the arc-shaped opening groove to press the ring plate onto the corresponding workpiece positioning seat, thereby ensuring the positioning and assembly accuracy between the sleeve and the ring plate, greatly improving the concentricity between the sleeve and the ring plate, and contributing to improving product accuracy and welding processing efficiency; the operation steps are simple, less affected by human factors, low skill requirements for operators, high construction operability, and strong practicality.

[0004] To achieve the above-mentioned purpose, the technical solution of the utility model is to design a welding tool with a reinforcing plate sleeve for an inflatable wheel, including a bottom plate, a pressure plate, a top plate and a driving mechanism. The driving mechanism is fixedly arranged on the lower side of the bottom plate, and the piston rod of the driving mechanism moves vertically upward through the through hole on the bottom plate and is fixedly connected to the lower end surface of the pressure plate. The front end of the bottom plate is fixedly provided with a plurality of workpiece locating seats with an opening upwardly slotted hole, and a vertically upwardly positioning shaft is fixedly arranged at the bottom center of the slotted hole of the workpiece locating seat, and an annular cavity surrounding the outer peripheral side of the positioning shaft is formed inside the workpiece locating seat, and the pressure plate is provided with a plurality of openings facing upwardly. An arc-shaped opening groove on the outside, and the arc-shaped opening grooves are located one-to-one above the workpiece positioning seat, the inner diameter of the arc-shaped opening groove is larger than the outer diameter of the workpiece positioning seat, and a plurality of pressure blocks extending to the top of the corresponding workpiece positioning seat are arranged on the upper side of the inner peripheral wall surface of the arc-shaped opening groove, a plurality of spacer sleeves are fixedly arranged on the pressure plate, the top plate is fixedly arranged on the top of the spacer sleeve, and a plurality of vertical downward guide pillars are fixedly arranged on the top plate, and the lower ends of the guide pillars are movably passed through the through holes on the spacer sleeve and the bottom plate and extend to the bottom of the bottom plate, and a plurality of elastic crimping components corresponding one-to-one to the workpiece positioning seat are arranged on the lower side of the top plate.

[0005] The utility model discloses a welding tool for a pneumatic wheel with a reinforcing plate shaft sleeve. The shaft sleeve is inserted into the positioning shaft with the lower end located inside the annular cavity, and then the ring plate is sleeved on the positioning shaft and overlapped on the workpiece positioning seat. The driving mechanism drives the elastic crimping assembly to be crimped onto the corresponding upper end of the positioning shaft and the pressure block on the inner peripheral wall of the arc-shaped opening groove to press the ring plate onto the corresponding workpiece positioning seat, thereby ensuring the positioning and assembly accuracy between the shaft sleeve and the ring plate, greatly improving the concentricity between the shaft sleeve and the ring plate, and helping to improve product accuracy and welding processing efficiency. The operation steps are simple, the influence of human factors is small, the skill requirements for operators are low, the construction operability is high, and the practicability is strong.

[0006] The preferred technical solution is that the top plate is fixedly provided with a plurality of crimping sleeves located on the lower side, the crimping sleeve has two countersunk grooves opening downward, and also includes a positioning core block, the upper end surface of the positioning core block has two plug connectors, the two plug connectors are slidably plugged into the inside of the two countersunk grooves, the positioning core block has two slots opening upward, a spring is installed inside the two slots, one end of the spring is fixedly provided at the bottom of the two slots, and the other end is fixedly provided at the bottom of the two countersunk grooves, the crimping sleeve, the positioning core block and the spring constitute the elastic crimping assembly. The elastic crimping assembly has a simple structural design, high feasibility of preparation and implementation, and plays a buffering and regulating role in the process of sleeve compression to avoid hard compression of the sleeve.

[0007] A further preferred technical solution is that the lower end face of the positioning core block is milled with an annular step 2 and a plug connector 1 located at the center of the lower end face of the annular step 2, the upper end face of the positioning shaft has a countersunk groove 1 opening upward, the countersunk groove 1 is matched with the plug connector 1, and the annular step 2 is matched with the countersunk step groove of the reinforcing plate sleeve on the pneumatic wheel. The lower end face structure of the positioning core block is matched with the countersunk step groove of the reinforcing plate sleeve on the pneumatic wheel, thereby further improving the crimping stability of the elastic crimping assembly on the sleeve.

[0008] A further preferred technical solution is that an annular step 1 is provided on the outer peripheral side of the lower end of the positioning shaft and is located at the bottom of the annular cavity, and the annular step 1 is adapted to the countersunk step groove of the reinforcing plate sleeve on the inflatable wheel. When the sleeve is plugged into the positioning shaft, the upper end of the annular step 1 is embedded in the countersunk step groove at the lower end of the sleeve, thereby further improving the sleeve connection stability of the sleeve on the outer side of the positioning shaft.

[0009] A further preferred technical solution is that the workpiece positioning seats include two, the two workpiece positioning seats are correspondingly arranged on the left and right sides of the front end of the bottom plate, the top plate has two arm plates extending forward, the front end of the arm plates is provided with a through hole, the upper end of the crimping sleeve has a plug-in column, and the crimping sleeve is fixedly arranged in the through hole of the front end of the arm plate through the plug-in column. The two workpiece positioning seats are reasonably arranged, suitable for single-station welding operation of the reinforcing plate sleeve on the pneumatic wheel, conform to the principle of ergonomics, and help improve welding efficiency.

[0010] A further preferred technical solution is that there are two guide pillars 1, and the two guide pillars 1 are correspondingly located on the left and right sides of the rear end of the top plate, a guide pillar 2 extending downward is fixedly arranged in the middle of the front end of the press plate, and a plurality of guide sleeves penetrating the plate body are fixedly arranged on the bottom plate, and the guide pillars 1 and 2 slide through the corresponding guide sleeves and extend to the bottom of the bottom plate. The two guide pillars 1 and one guide pillar 2 are respectively located at the three vertices of the triangular structure, and the lower ends of the guide pillars are slidably inserted into the guide sleeves on the bottom plate, thereby ensuring the stability of the driving mechanism in the process of driving the press plate and the top plate to rise and fall.

[0011] A further preferred technical solution is that legs with an L-shaped horizontal cross section are fixedly disposed at the left and right ends of the lower side surface of the bottom plate.

[0012] A further preferred technical solution is that the driving mechanism is a cylinder.

[0013] The advantages and beneficial effects of the utility model are:

[0014] 1. The utility model is a welding tool for a pneumatic wheel with a reinforcing plate sleeve. The sleeve is inserted into the positioning shaft with the lower end located inside the annular cavity, and then the ring plate is sleeved on the positioning shaft and overlapped on the workpiece positioning seat. The driving mechanism drives the elastic crimping assembly to be crimped onto the corresponding upper end of the positioning shaft and the pressure block on the inner circumferential wall of the arc-shaped opening groove to press the ring plate onto the corresponding workpiece positioning seat, thereby ensuring the positioning and assembly accuracy between the sleeve and the ring plate, greatly improving the concentricity between the sleeve and the ring plate, and helping to improve product accuracy and welding processing efficiency; the operation steps are simple, less affected by human factors, low skill requirements for operators, high construction operability, and strong practicality.

[0015] 2. The elastic crimping assembly has a simple structural design and is highly feasible to manufacture and implement. It plays a buffering and regulating role in the process of pressing the sleeve to avoid hard crushing of the sleeve.

[0016] 3. The lower end surface structure of the positioning core block is compatible with the countersunk step groove of the reinforcing plate sleeve on the inflatable wheel. When the sleeve is inserted into the positioning shaft, the upper end of the annular step is embedded in the countersunk step groove at the lower end of the sleeve, thereby further improving the sleeve connection stability on the outside of the positioning shaft.

[0017] 4. The two workpiece positioning seats are reasonably arranged, which is suitable for single-station welding operation of the reinforcing plate sleeve on the inflatable wheel, conforms to the principle of ergonomics and helps to improve welding efficiency.

[0018] 5. Two guide pillars 1 and one guide pillar 2 are respectively located at the three vertices of the triangular structure, and the lower ends of the guide pillars are slidably inserted into the guide sleeves on the bottom plate, thereby ensuring the stability of the driving mechanism in the process of driving the pressing plate and the top plate to rise and fall. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of a reinforcing plate sleeve on an inflatable wheel in the background technology;

[0020] Figure 2 It is a longitudinal cross-sectional view of a reinforcing plate sleeve on an inflatable wheel in the background technology;

[0021] Figure 3 It is a front side top view of a welding tool for a reinforcing plate sleeve on an inflatable wheel of the utility model;

[0022] Figure 4 It is a left rear side perspective of the welding tooling for the pneumatic wheel with a reinforcing plate sleeve of the utility model;

[0023] Figure 5 It is a longitudinal sectional view of a welding tool for a reinforcing plate sleeve on an inflatable wheel of the utility model;

[0024] Figure 6 yes Figure 5 A partial enlarged view of the H in the middle;

[0025] Figure 7 This is a three-dimensional diagram of the use state of the welding tool with a reinforcing plate sleeve on the pneumatic wheel of the utility model;

[0026] Figure 8 It is a longitudinal sectional view of the welding tool with a reinforcing plate sleeve on an inflatable wheel of the utility model in the use state;

[0027] Fig. 9 yes Figure 8 A partial enlarged view of the middle W.

[0028] In the figure: A, bushing; B, ring plate; C, countersunk step groove; 1, bottom plate; 2, workpiece positioning seat; 3, positioning shaft; 4, positioning core block; 5, pressure plate; 6, top plate; 7, spacer; 8, guide column one; 9, crimping sleeve; 10, guide column two; 11, guide sleeve; 12, driving mechanism; 1-1, support leg; 1-2, annular cavity; 3-1, annular step one; 3-2, countersunk groove one; 4-1, plug connector one; 4-2, plug connector two; 4-3, annular step two; 4-4, slot two; 4-5, spring; 5-1, arc opening groove; 5-2, pressure block; 6-1, arm plate; 9-1, countersunk groove two; 9-2, plug connector. DETAILED DESCRIPTION

[0029] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0030] Example

[0031] like Figures 3 to 9As shown, the utility model is a welding tool for an inflatable wheel with a reinforcing plate sleeve, comprising a bottom plate 1, a pressure plate 5, a top plate 6 and a driving mechanism 12, wherein the driving mechanism 12 is fixedly arranged on the lower side of the bottom plate 1, and a piston rod of the driving mechanism 12 moves vertically upward through a through hole on the bottom plate 1 and is fixedly connected to the lower end surface of the pressure plate 5, a plurality of workpiece positioning seats 2 with an opening upwardly provided at the front end of the bottom plate 1, a vertically upwardly provided positioning shaft 3 is fixedly arranged at the bottom center of the slot hole 1 of the workpiece positioning seat 2, an annular cavity 1-2 surrounding the outer peripheral side of the positioning shaft 3 is formed inside the workpiece positioning seat 2, and a plurality of arc-shaped opening grooves 5-1 with openings facing outwards are provided on the pressure plate 5. 1, and the arc-shaped opening grooves 5-1 are correspondingly located above the workpiece positioning seat 2, the inner diameter of the arc-shaped opening grooves 5-1 is larger than the outer diameter of the workpiece positioning seat 2, and the upper side of the inner peripheral wall of the arc-shaped opening grooves 5-1 is spaced apart with a plurality of pressure blocks 5-2 extending to the corresponding workpiece positioning seat 2, the pressing plate 5 is fixedly provided with a plurality of spacer sleeves 7, the top plate 6 is fixedly provided on the top of the spacer sleeves 7, and the top plate 6 is fixedly provided with a plurality of vertically downward guide pillars 8, the lower ends of the guide pillars 8 are correspondingly and movably penetrate the through holes on the spacer sleeves 7 and the bottom plate 1 and extend to the bottom of the bottom plate 1, and the lower side of the top plate 6 is provided with a plurality of elastic crimping components corresponding to the workpiece positioning seat 2 one by one.

[0032] Preferably, the top plate 6 is fixedly provided with a plurality of crimping sleeves 9 located on the lower side, the crimping sleeve 9 has a countersunk groove 9-1 opening downward, and also includes a positioning core block 4, the upper end surface of the positioning core block 4 has a plug connector 4-2, the plug connector 4-2 is slidably plugged into the countersunk groove 9-1, the positioning core block 4 has a slot hole 4-4 opening upward, a spring 4-5 is installed in the slot hole 4-4, one end of the spring 4-5 is fixed to the bottom of the slot hole 4-4, and the other end is fixed to the bottom of the countersunk groove 9-1, the crimping sleeve 9, the positioning core block 4 and the spring 4-5 constitute the elastic crimping assembly.

[0033] Further preferably, the lower end face of the positioning core block 4 is milled with an annular step 2 4-3 and a plug connector 1 4-1 located at the center of the lower end face of the annular step 2 4-3, the upper end face of the positioning shaft 3 has a countersunk groove 1 3-2 opening upward, the countersunk groove 1 3-2 is adapted to the plug connector 1 4-1, and the annular step 2 4-3 is adapted to the countersunk step groove C with a reinforcing plate sleeve on the inflatable wheel.

[0034] Further preferably, an annular step 3-1 located at the bottom of the annular cavity 1-2 is provided on the outer peripheral side of the lower end of the positioning shaft 3, and the annular step 3-1 is adapted to the countersunk step groove C of the reinforcing plate sleeve on the inflatable wheel.

[0035] Further preferably, the workpiece positioning seats 2 include two, and the two workpiece positioning seats 2 are correspondingly arranged on the left and right sides of the front end of the base plate 1, the top plate 6 has two arm plates 6-1 extending forward, and the front end of the arm plate 6-1 is provided with a through hole, and the upper end of the crimping sleeve 9 has a plug-in column 9-2, and the crimping sleeve 9 is fixed in the through hole at the front end of the arm plate 6-1 through the plug-in column 9-2.

[0036] Further preferably, there are two guide pillars 8, and the two guide pillars 8 are correspondingly located on the left and right sides of the rear end of the top plate 6. A guide pillar 2 10 extending downward is fixedly provided in the middle of the front end of the pressure plate 5, and a plurality of guide sleeves 11 penetrating through the plate body are fixedly provided on the bottom plate 1. The guide pillars 18 and 10 respectively slide through the corresponding guide sleeves 11 and extend to the bottom of the bottom plate 1.

[0037] Further preferably, the left and right ends of the lower side surface of the bottom plate 1 are respectively fixed with supporting legs 1 - 1 having an L-shaped horizontal cross-section.

[0038] Further preferably, the driving mechanism 12 is a cylinder.

[0039] The utility model discloses a welding tool for a reinforcing plate sleeve on an inflatable wheel. The use principle is as follows:

[0040] The cylinder is started by the control system, and the piston rod of the cylinder (drive mechanism 12) begins to extend, and the pressure plate 5 and the top plate 6 are lifted up; the sleeve A is inserted and placed on the positioning shaft 3, and the lower end of the sleeve A is located inside the annular cavity 1-2 and overlapped on the upper end surface of the annular step 3-1; then, the ring plate B is sleeved on the outside of the sleeve A, and the ring plate B is overlapped and located on the workpiece positioning seat 2; the cylinder is closed by the control system, and the piston rod of the cylinder (drive mechanism 12) begins to shrink, and the pressure plate 5 and the top plate 6 descend, then the plug connector 4-1 of the elastic crimping assembly is inserted into the positioning shaft 3. The countersunk groove 3-2 at the upper end of the shaft 3 is positioned inside and the sleeve A is pressed against the annular step 3-1, and several pressure blocks on the inner wall of the arc-shaped opening groove 5-1 press the ring plate B against the corresponding workpiece positioning seat 2; finally, the annular gap between the ring plate B and the sleeve A is welded from the upper side of the arc-shaped opening groove 5-1. After welding, the cylinder is started again through the control system, and the piston rod of the cylinder (driving mechanism 12) begins to extend, the pressing plate 5 and the top plate 6 are lifted up, the welded reinforcement plate sleeve is removed, and the welding process of the next reinforcement plate sleeve is started.

[0041] The utility model discloses a welding tool for a pneumatic wheel with a reinforcing plate shaft sleeve. The shaft sleeve is inserted into the positioning shaft with the lower end located inside the annular cavity, and then the ring plate is sleeved on the positioning shaft and overlapped on the workpiece positioning seat. The driving mechanism drives the elastic crimping assembly to be crimped onto the corresponding upper end of the positioning shaft and the pressure block on the inner peripheral wall of the arc-shaped opening groove to press the ring plate onto the corresponding workpiece positioning seat, thereby ensuring the positioning and assembly accuracy between the shaft sleeve and the ring plate, greatly improving the concentricity between the shaft sleeve and the ring plate, and helping to improve product accuracy and welding processing efficiency. The operation steps are simple, the influence of human factors is small, the skill requirements for operators are low, the construction operability is high, and the practicability is strong.

[0042] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A welding tool for a pneumatic wheel with a reinforcing plate sleeve, characterized in that: The invention comprises a bottom plate (1), a pressure plate (5), a top plate (6) and a driving mechanism (12), wherein the driving mechanism (12) is fixedly arranged on the lower side of the bottom plate (1), a piston rod of the driving mechanism (12) moves vertically upwards through a through hole on the bottom plate (1) and is fixedly connected to the lower end surface of the pressure plate (5), a front end of the bottom plate (1) is fixedly provided with a plurality of workpiece positioning seats (2) having a slot hole opening upwards, a positioning shaft (3) is fixedly arranged vertically upwards at the bottom center of the slot hole of the workpiece positioning seat (2), an annular cavity (1-2) surrounding the outer peripheral side of the positioning shaft (3) is formed inside the workpiece positioning seat (2), a plurality of arc-shaped opening grooves (5-1) opening outwards are provided on the pressure plate (5), and the arc-shaped opening grooves (5-1) are connected one by one. Corresponding to the workpiece positioning seat (2), the inner diameter of the arc-shaped opening groove (5-1) is larger than the outer diameter of the workpiece positioning seat (2), and a plurality of pressure blocks (5-2) extending to the corresponding workpiece positioning seat (2) are arranged on the upper side of the inner peripheral wall of the arc-shaped opening groove (5-1), and the pressure plate (5) is fixed with a plurality of spacers (7), and the top plate (6) is fixed on the top of the spacers (7), and a plurality of vertically downward guide pillars (8) are fixed on the top plate (6), and the lower ends of the guide pillars (8) are movably connected through the through holes on the spacers (7) and the bottom plate (1) and extend to the bottom of the bottom plate (1), and the lower side of the top plate (6) is provided with a plurality of elastic crimping components corresponding to the workpiece positioning seat (2) one by one.

2. The welding tool for a pneumatic wheel with a reinforcing plate sleeve as claimed in claim 1, characterized in that: The top plate (6) is fixedly provided with a plurality of crimping sleeves (9) located on the lower side, the crimping sleeve (9) having a countersunk groove (9-1) opening downward, and also comprising a positioning core block (4), the upper end surface of the positioning core block (4) having a plug connector (4-2), the plug connector (4-2) being slidably plugged into the inside of the countersunk groove (9-1), the positioning core block (4) having a slot hole (4-4) opening upward, a spring (4-5) being installed inside the slot hole (4-4), one end of the spring (4-5) being fixedly provided at the bottom of the slot hole (4-4) and the other end being fixedly provided at the bottom of the countersunk groove (9-1), the crimping sleeve (9), the positioning core block (4) and the spring (4-5) forming the elastic crimping assembly.

3. The welding tool for the reinforcing plate sleeve on the pneumatic wheel according to claim 2, characterized in that: The lower end surface of the positioning core block (4) is milled with an annular step 2 (4-3) and a plug connector 1 (4-1) located at the center of the lower end surface of the annular step 2 (4-3); the upper end surface of the positioning shaft (3) is provided with a countersunk groove 1 (3-2) opening upward, the countersunk groove 1 (3-2) is matched with the plug connector 1 (4-1), and the annular step 2 (4-3) is matched with the countersunk step groove (C) with a reinforcing plate sleeve on the inflatable wheel.

4. The welding tool for the reinforcing plate sleeve on the pneumatic wheel according to claim 3, characterized in that: An annular step (3-1) located at the bottom of the annular cavity (1-2) is provided on the outer peripheral side of the lower end of the positioning shaft (3), and the annular step (3-1) is adapted to the countersunk step groove (C) of the reinforcing plate sleeve on the inflatable wheel.

5. The welding tool for the reinforcing plate sleeve on the pneumatic wheel according to claim 4, characterized in that: The workpiece positioning seats (2) include two, and the two workpiece positioning seats (2) are correspondingly arranged on the left and right sides of the front end of the bottom plate (1); the top plate (6) has two arm plates (6-1) extending forward, and the front end of the arm plate (6-1) is provided with a through hole, and the upper end of the crimping sleeve (9) has a plug-in column (9-2), and the crimping sleeve (9) is plugged and fixed in the through hole of the front end of the arm plate (6-1) through the plug-in column (9-2).

6. The welding tool for the reinforcing plate sleeve on the pneumatic wheel according to claim 5, characterized in that: There are two guide pillars (8), which are respectively located on the left and right sides of the rear end of the top plate (6). A guide pillar (10) extending downward is fixedly provided in the middle of the front end of the pressure plate (5). A plurality of guide sleeves (11) penetrating the plate body are fixedly provided on the bottom plate (1). The guide pillars (8) and (10) respectively slide through the corresponding guide sleeves (11) and extend to the bottom of the bottom plate (1).

7. The welding tool for the reinforcing plate sleeve on the pneumatic wheel according to claim 6, characterized in that: Support legs (1-1) having an L-shaped horizontal cross section are fixedly disposed at the left and right ends of the lower side surface of the bottom plate (1).

8. The welding tool for the reinforcing plate sleeve on the pneumatic wheel according to claim 7, characterized in that: The driving mechanism (12) is a cylinder.

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