Wheelchair frame welding equipment

Abstract

The invention discloses wheelchair frame welding equipment, and particularly relates to the technical field of welding equipment.The wheelchair frame welding equipment comprises a base, an annular groove is formed in the edge of the upper end of the base, two symmetrically-distributed arc-shaped plates are slidably connected to the inner surface of the annular groove, and a mounting groove is formed in the middle of the upper end of the base; a reciprocating sliding assembly is fixedly installed at the upper ends of the two arc-shaped plates jointly, a transmission assembly is fixedly installed on the upper portion of the outer surface of the reciprocating sliding assembly, a blocking assembly is fixedly installed in the middle of the upper side of the outer surface of the transmission assembly, and two symmetrically-distributed clamping assemblies are fixedly installed on the front portion and the rear portion of the outer surface of the blocking assembly correspondingly. According to the wheelchair frame welding equipment, through the arranged reciprocating sliding assembly, the stopping assembly can be assisted in reciprocating movement, through the arranged stopping assembly, welding splash generated during welding can be prevented from being splashed out from the periphery while a wheelchair frame is welded, and therefore potential safety hazards are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, and in particular to a wheelchair frame welding equipment. Background Art

[0002] A commonly used wheelchair frame welding device requires the use of a welding gun to weld the wheelchair frame. This welding gun requires manual welding tasks, which reduces welding efficiency and welding accuracy. In addition, manual labor cannot effectively limit and fix the wheelchair frame, and there is a lack of automatic clamping and automatic relaxation structures.

[0003] Chinese patent announcement number CN106925861A discloses a wheelchair frame welding device, including a bottom plate, a slide rail is provided at the upper end of the bottom plate, the slide rail is connected to a rotating base through a pulley, a workbench is provided at the top of the rotating base, a pad is provided at the top of the workbench, a fixed frame is provided at the top of the pad, a toothed disc is provided in the middle of the inner wall of the rotating base, the toothed disc is connected to the motor through an active gear, a support column is provided in the middle of the top of the bottom plate, a circuit control box is provided at the top of the support column, a rotating base is provided at the top of the circuit control box, a mechanical arm is provided at the top of the rotating base, one end of the mechanical arm is connected to a welding gun, a fan is provided at the top of the bottom plate, the upper end of the fan is connected to an air jet pipe, a plurality of air jet heads are provided at the lower side of one end of the air jet pipe, and the front side of the bottom plate is connected to a substrate. The above patent document adopts an intermittent cycle automatic welding method, optimizes the welding process, and automatically welds, which can achieve better welding quality and welding effect, avoid scrapping caused by misoperation, reduce people's work intensity, and improve work efficiency.

[0004] Although the device in the above patent document can perform welding work on the wheelchair frame during use, it lacks a structure for automatically clamping and relaxing the wheelchair frame during actual use, thereby reducing the subsequent welding efficiency. Summary of the invention

[0005] The main purpose of the present invention is to provide a wheelchair frame welding device, which can effectively solve the problem of lack of a structure for automatically clamping and relaxing the wheelchair frame.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A wheelchair frame welding device comprises a base, an annular groove is provided at the edge of the upper end of the base, two symmetrically distributed arc plates are slidably connected to the inner surface of the annular groove, a mounting groove is provided in the middle of the upper end of the base, a reciprocating sliding component is fixedly installed on the upper ends of the two arc plates, a transmission component is fixedly installed on the upper part of the outer surface of the reciprocating sliding component, a blocking component is fixedly installed on the middle part of the upper side of the outer surface of the transmission component, and two groups of symmetrically distributed clamping components are fixedly installed on the front and rear of the outer surface of the blocking component.

[0008] Preferably, a motor is fixedly mounted on the front portion of the bottom wall of the mounting groove, a transmission rod is rotatably connected to the rear portion of the bottom wall of the mounting groove, a belt 1 is fixedly connected to the output end of the motor and the middle portion of the outer surface of the transmission rod, the output end of the motor is fixedly connected to the pulley 1 on the same side via a coupling, and a belt 1 is wrapped around the outer surfaces of the two pulleys 1 together.

[0009] Preferably, the reciprocating sliding assembly includes a mounting plate fixedly connected to the upper ends of the two arc-shaped plates, a half gear is rotatably connected to the middle of the upper end of the mounting plate, an elliptical inner gear ring is slidably connected to the left wall and the right wall of the inner surface of the mounting plate, the outer surface of the half gear is meshed with the inner surface of the elliptical inner gear ring, a guide groove penetrating the inner cavity of the mounting plate is provided in the middle of the left end and the middle of the right end of the mounting plate, a C-shaped plate is slidably connected to the inner surfaces of the two guide grooves, and the ends of the two C-shaped plates close to each other are fixed to the middle of the left end and the middle of the right end of the elliptical inner gear ring respectively. The reciprocating sliding assembly connected to the two arc-shaped plates includes a mounting plate fixedly connected to the upper ends thereof, a half gear is rotatably connected to the middle of the upper end of the mounting plate, an elliptical inner gear ring is slidably connected to the left side wall and the right side wall of the inner surface of the mounting plate, the outer surface of the half gear is meshed with the inner surface of the elliptical inner gear ring, a guide groove penetrating the inner cavity of the mounting plate is provided in the middle of the left end and the middle of the right end of the mounting plate, a C-shaped plate is slidably connected to the inner surfaces of the two guide grooves, and the ends of the two C-shaped plates close to each other are fixedly connected to the middle of the left end and the middle of the right end of the elliptical inner gear ring respectively.

[0010] Preferably, the transmission assembly includes a fixed plate fixedly connected to the upper end of the mounting plate, a pulley two is rotatably connected to the middle part of the upper end of the fixed plate, and two groups of pulleys three symmetrically distributed on the left and right are rotatably connected to the front part of the upper end and the rear part of the upper end of the fixed plate, and the outer surfaces of the two pulleys three located at the front and the two pulleys three located at the rear are respectively wrapped with belt two together with pulley two.

[0011] Preferably, the blocking assembly includes an operating table with four pulleys whose upper ends are rotatably connected together, a partition is fixedly connected to the middle of the upper end of the operating table, a rectangular through hole that runs through the rear side of the partition is opened in the middle of the upper side of the front end of the partition, and two slide grooves are opened in the middle of the left end and the middle of the right end of the operating table, and a C-shaped baffle is slidably connected to the inner surfaces of the two slide grooves, and a multi-axis welding gun is fixedly connected to the middle of the top wall of the C-shaped baffle.

[0012] Preferably, the upper parts of the ends of the two C-shaped plates that are close to each other are fixedly connected to the left end and the right end of the C-shaped baffle respectively.

[0013] Preferably, the two groups of the clamping assemblies include two round blocks rotatably connected to the rear part of the upper end of the operating table, the two round blocks are symmetrically distributed on the left and right, the outer surfaces of the two round blocks are fixedly connected to a connecting plate, the middle part of the upper end of the two connecting plates is provided with a slide groove 1, the inner surfaces of the two slide grooves 1 are slidably connected to a rectangular block 1, the lower ends of the two rectangular blocks are rotatably connected to an elliptical plate, the lower ends of the two elliptical plates are fixedly connected to a rotating rod on one side away from each other, the lower ends of the two rotating rods pass through the upper end of the operating table and are fixedly connected to the middle part of the upper end of the pulley 3 on the same side, the front parts of the upper ends of the two connecting plates are rotatably connected to a rectangular block 2, and two groups of symmetrically distributed limit plates are fixedly connected to the left and right parts of the rear side of the middle part of the upper end of the operating table.

[0014] Preferably, circular holes are provided at the upper and lower parts of one end of the two circular holes on the same side that are close to each other, and the inner surfaces of the two circular holes at the upper part and the two circular holes at the lower part are slidably connected with clamping columns, and the middle parts of the rear sides of the outer surfaces of the two clamping columns are fixedly connected with C-shaped blocks, and buffer components are slidably installed at the left ends of the two clamping columns on the same side, and the ends of the two C-shaped blocks on the same side that are close to each other are fixedly connected with connecting blocks, and the two rectangular blocks on the same side are slidably connected to the inner surfaces of the C-shaped blocks at the lower part on the same side.

[0015] Preferably, the buffer assembly includes an extrusion head slidably connected to the right end of the clamping column, a cylindrical groove is provided at the right end of the clamping column, the extrusion head is slidably connected to the inner cavity of the cylindrical groove, a spring is fixedly connected to one end of the extrusion head and the cylindrical groove that are close to each other, guide blocks are fixedly connected to the middle of the front side and the middle of the rear side of the outer surface of the extrusion head, rectangular grooves extending to the inner cavity of the cylindrical groove are provided at the front right side and the rear right side of the outer surface of the clamping column, and the two guide blocks are respectively slidably connected to the inner cavity of the rectangular groove on the same side.

[0016] Preferably, the upper end of the transmission rod passes through the mounting plate and is fixedly connected to the lower end of the operating table, and the upper portion of the outer surface of the transmission rod is fixedly connected to the inner surface of the half gear and the inner surface of the second pulley respectively.

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

[0018] 1. The reciprocating sliding assembly of the present invention can assist the blocking assembly in reciprocating movement, and the blocking assembly of the device can prevent welding spatter generated during welding from splashing out from all sides while welding the wheelchair frame, thereby reducing safety hazards.

[0019] 2. The present invention can assist the two groups of clamping components installed on the outer surface of the blocking component to clamp and loosen the wheelchair frame to be welded by providing a transmission component. At the same time, when one group of the clamping components clamps the workpiece, the blocking component just moves to the same side of the clamping group of components, and then welds the clamped wheelchair frame, while the other group of clamping components releases the wheelchair frame after welding. There is no need for manual control of clamping and loosening, thereby improving the subsequent welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2 It is a schematic diagram of the overall structure of another state of the present invention;

[0022] Figure 3 It is a schematic cross-sectional view of a local structure of the present invention;

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

[0024] Figure 5 It is a schematic diagram of the structure of the blocking component of the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the clamping assembly of the present invention;

[0026] Figure 7 It is a schematic diagram of the structure of the reciprocating sliding assembly of the present invention;

[0027] Figure 8 It is a schematic cross-sectional view of a local structure of the present invention;

[0028] Fig. 9 For the present invention Figure 3 Schematic diagram of the structure at A in the middle;

[0029] Fig.10 For the present invention Figure 3 Schematic diagram of the structure at point B in the middle.

[0030] In the figure: 1, base; 2, annular groove; 3, arc plate; 4, mounting groove; 41, motor; 42, transmission rod; 43, pulley 1; 44, belt 1; 5, reciprocating sliding assembly; 51, mounting plate; 52, half gear; 53, elliptical inner gear ring; 54, guide groove; 55, C-shaped plate; 6, transmission assembly; 61, fixing plate; 62, pulley 2; 63, pulley 3; 64, belt 2; 7, clamping assembly; 71, round block; 72, connecting plate; 73, slideway 1; 74. Rectangular block one; 75. Elliptical plate; 76. Rotating rod; 77. Rectangular block two; 78. Limiting plate; 781. Round hole; 782. Clamping column; 783. C-shaped block; 784. Buffer assembly; 785. Connecting block; 7841. Extrusion head; 7842. Cylindrical groove; 7843. Spring; 7844. Guide block; 7845. Rectangular groove; 8. Blocking assembly; 81. Operating table; 82. Partition; 83. Rectangular through hole; 84. Slide groove two; 85. C-shaped baffle. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0032] Embodiment 1, as Figure 1 and Figure 2 As shown, a wheelchair frame welding device comprises a base 1, a circular groove 2 is provided at the upper edge of the base 1, two symmetrically distributed arc plates 3 are slidably connected to the inner surface of the circular groove 2, a mounting groove 4 is provided at the middle of the upper end of the base 1, and a reciprocating sliding component 5 is fixedly installed on the upper ends of the two arc plates 3. The reciprocating sliding component 5 can assist the blocking component 8 to move back and forth, and the blocking component 8 can prevent the welding spatter generated during welding from splashing from all sides while welding the wheelchair frame, thereby reducing safety hazards;

[0033] A transmission component 6 is fixedly installed on the upper part of the outer surface of the reciprocating sliding component 5, and a blocking component 8 is fixedly installed on the middle part of the upper side of the outer surface of the transmission component 6. Two groups of symmetrically distributed clamping components 7 are fixedly installed on the front and rear parts of the outer surface of the blocking component 8. Through the set transmission component 6, the two groups of clamping components 7 installed on the outer surface of the blocking component 8 can be assisted to clamp and relax the wheelchair frame to be welded. At the same time, when one group of clamping components 7 clamps the workpiece, the blocking component 8 just moves to the same side of the clamping group of clamping components 7, and then welds the clamped wheelchair frame, while the other group of clamping components 7 will release the wheelchair frame after welding. There is no need for manual control of clamping and relaxation, thereby improving the welding efficiency.

[0034] Embodiment 2: Based on Embodiment 1, this embodiment is for achieving the purpose of isolating welding spatter generated during welding.

[0035] For details, see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 7 , Figure 8 and Fig.10 A motor 41 is fixedly installed on the front part of the bottom wall of the mounting groove 4, and a transmission rod 42 is rotatably connected to the rear part of the bottom wall of the mounting groove 4. A belt 44 is fixedly connected to the output end of the motor 41 and the middle part of the outer surface of the transmission rod 42. The output end of the motor 41 is fixedly connected to a pulley 43 on the same side through a coupling, and a belt 44 is wrapped around the outer surfaces of the two pulleys 43.

[0036] Furthermore, the reciprocating sliding assembly 5 includes a mounting plate 51 to which the upper ends of the two arc-shaped plates 3 are fixedly connected, a half gear 52 is rotatably connected to the middle of the upper end of the mounting plate 51, an elliptical inner gear ring 53 is slidably connected to the left side wall and the right side wall of the inner surface of the mounting plate 51, the outer surface of the half gear 52 is meshed with the inner surface of the elliptical inner gear ring 53, and a guide groove 54 that penetrates the inner cavity of the mounting plate 51 is provided in the middle of the left end and the middle of the right end of the mounting plate 51, and the inner surfaces of the two guide grooves 54 are slidably connected to C-shaped plates 55, and the ends of the two C-shaped plates 55 that are close to each other are fixedly connected to the middle of the left end and the middle of the right end of the elliptical inner gear ring 53 respectively.

[0037] Furthermore, the blocking assembly 8 includes an operating table 81 to which the upper ends of four pulleys 63 are rotatably connected together, a partition 82 is fixedly connected to the middle of the upper end of the operating table 81, a rectangular through hole 83 that passes through the rear side of the partition 82 is opened in the middle of the upper side of the front end of the partition 82, and a slide groove 84 is opened in the middle of the left end and the middle of the right end of the operating table 81. The inner surfaces of the two slide grooves 84 are slidably connected together with a C-shaped baffle 85, and a multi-axis welding gun is fixedly connected to the middle of the top wall of the C-shaped baffle 85.

[0038] Furthermore, the upper parts of the ends of the two C-shaped plates 55 that are close to each other are fixedly connected to the left and right ends of the C-shaped baffle 85 respectively, the upper end of the transmission rod 42 passes through the mounting plate 51 and is fixedly connected to the lower end of the operating table 81, and the upper part of the outer surface of the transmission rod 42 is fixedly connected to the inner surface of the half gear 52 and the inner surface of the pulley 2 62 respectively.

[0039] By starting the motor 41, it can be known from the above that the output end of the motor 41 is fixedly connected to the pulley 1 43 on the same side through the coupling, and the outer surfaces of the two pulleys 1 43 are wound with a belt 1 44 together. Therefore, when the output end of the motor 41 drives one of the pulleys 1 43 to rotate through the coupling, the other pulley 1 43 can be rotated at the same time under the action of the transmission connection of the belt 1 44, and then the transmission rod 42 rotates with the rotation of the pulley 1 43;

[0040] As can be seen from the above, the upper portion of the outer surface of the transmission rod 42 is fixedly connected to the inner surface of the half gear 52, so when the transmission rod 42 rotates, the half gear 52 fixedly connected thereto can be driven to rotate at the same time, and the outer surface of the half gear 52 meshes with the inner surface of the elliptical inner gear ring 53, and the half gear 52 is arranged in a half-tooth configuration, so when the half gear 52 rotates half a circle, the teeth on its outer surface mesh with the teeth on the upper portion of the inner surface of the elliptical inner gear ring 53, thereby causing the elliptical inner gear ring 53 to move forward, and when the elliptical inner gear ring 53 moves forward, due to the C-shaped The plates 55 are respectively slidably connected to the guide grooves 54 on the same side, and the two C-shaped plates 55 are respectively fixedly connected to the middle of the left end and the middle of the right end of the elliptical inner gear ring 53, so when the elliptical inner gear ring 53 moves forward, it can simultaneously drive the C-shaped plates 55 on both sides to move forward, and the other ends of the two C-shaped plates 55 are respectively fixedly connected to the C-shaped baffles 85, so when the two C-shaped plates 55 move forward, they can drive the C-shaped baffles 85 to move forward at the same time, and the second slide grooves 84 provided at the left and right ends of the operating table 81 play a guiding role for the C-shaped baffles 85;

[0041] While the C-shaped baffle 85 moves forward, since the lower end of the operating table 81 is fixedly connected to the upper end of the transmission rod 42, the operating table 81 rotates half a circle accordingly, and in the process of the C-shaped baffle 85 moving to the upper part of the wheelchair frame to be welded, the clamping assembly 7 in this direction gradually clamps and fixes the wheelchair frame, and the multi-axis welding gun fixedly connected to the middle part of the top wall of the C-shaped baffle 85 can pass through the rectangular through hole 83 opened in the middle part of the upper side of the front end of the partition 82, and then the wheelchair frame fixed by the clamping assembly 7 is welded, and the C-shaped baffle 85 can just block the spatter generated during welding, thereby reducing the safety hazard during welding;

[0042] When the half gear 52 completes one circle, the teeth on the outer surface of the half gear 52 can mesh with the teeth on the lower inner surface of the elliptical inner gear ring 53, thereby causing the elliptical inner gear ring 53 to move backward. The specific operating steps are the same as above, so no further details will be given.

[0043] The multi-axis welding gun mentioned above is a conventional design in the prior art. It only needs to accurately control the welding position and angle through multi-axis movement. The movement of each axis can be independently controlled to achieve complex welding trajectory and posture adjustment. Its specific installation method, circuit connection method and control method are all conventional designs and will not be elaborated in detail in this scheme.

[0044] Embodiment 3: Based on embodiment 2, this embodiment is to achieve the purpose of clamping the wheelchair frame to be welded on one side and loosening the wheelchair frame after welding every half turn of the operating table 81.

[0045] For details, see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 ,and Fig. 9 The transmission assembly 6 includes a fixed plate 61 fixedly connected to the upper end of the mounting plate 51, a pulley 2 62 is rotatably connected to the middle of the upper end of the fixed plate 61, and two groups of pulleys 3 63 symmetrically distributed on the front and rear ends of the upper end of the fixed plate 61 are rotatably connected, and the outer surfaces of the two pulleys 3 63 at the front and the two pulleys 3 63 at the rear are respectively wrapped with belts 2 64 together with the pulley 2 62.

[0046] Furthermore, the two groups of clamping assemblies 7 include two round blocks 71 rotatably connected to the rear portion of the upper end of the operating table 81, the two round blocks 71 are symmetrically distributed on the left and right, the outer surfaces of the two round blocks 71 are fixedly connected to connecting plates 72, the middle portions of the upper ends of the two connecting plates 72 are provided with slide grooves 73, the inner surfaces of the two slide grooves 73 are slidably connected to rectangular blocks 74, the lower ends of the two rectangular blocks 74 are rotatably connected to elliptical plates 75, the lower ends of the two elliptical plates 75 are fixedly connected to the sides away from each other, the lower ends of the two rotating rods 76 pass through the upper end of the operating table 81 and are fixedly connected to the middle portion of the upper end of the pulley three 63 on the same side, the upper front portions of the two connecting plates 72 are rotatably connected to rectangular blocks 2 77, and two groups of symmetrically distributed limiting plates 78 are fixedly connected to the left and right portions of the rear middle portion of the upper end of the operating table 81.

[0047] Furthermore, circular holes 781 are provided at the upper and lower parts of the ends of the two circular holes 781 on the same side that are close to each other, and the inner surfaces of the two circular holes 781 on the upper part and the two circular holes 781 on the lower part are slidably connected with clamping columns 782, and the middle parts of the rear sides of the outer surfaces of the two clamping columns 782 are fixedly connected with C-shaped blocks 783, and the left ends of the two clamping columns 782 on the same side are slidably installed with buffer components 784, and the ends of the two C-shaped blocks 783 on the same side that are close to each other are fixedly connected with connecting blocks 785, and the rectangular blocks 77 on the same side are slidably connected to the inner surfaces of the C-shaped blocks 783 on the same side at the lower part, and the buffer components 784 include The right end of the clamping column 782 is slidably connected to the extrusion head 7841, and a cylindrical groove 7842 is provided at the right end of the clamping column 782. The extrusion head 7841 is slidably connected to the inner cavity of the cylindrical groove 7842. The ends of the extrusion head 7841 and the cylindrical groove 7842 that are close to each other are commonly fixedly connected with a spring 7843. The middle of the front side and the middle of the rear side of the outer surface of the extrusion head 7841 are fixedly connected with guide blocks 7844. The right front part and the right rear part of the outer surface of the clamping column 782 are provided with rectangular grooves 7845 extending to the inner cavity of the cylindrical groove 7842. The two guide blocks 7844 are respectively slidably connected to the inner cavities of the rectangular groove 7845 on the same side.

[0048] As can be seen from the above, the upper part of the outer surface of the transmission rod 42 is fixedly connected to the inner surface of the second pulley 62, so when the transmission rod 42 rotates, the second pulley 62 fixedly connected thereto can be driven to rotate at the same time, and the outer surfaces of the two third pulleys 63 at the front and the two third pulleys 63 at the rear are respectively wound with the second pulley 62 by the second belt 64, so when the second pulley 62 rotates with the transmission rod 42, under the action of the transmission connection of the two second belts 64, the four third pulleys 63 can be driven to rotate at the same time;

[0049] The lower ends of the four rotating rods 76 all pass through the upper end of the operating table 81 and are fixedly connected to the middle of the upper end of the belt pulley 3 63 on the same side. Therefore, when the four belt pulleys 3 63 rotate, the rotating rods 76 fixedly connected thereto can be driven to rotate.

[0050] When the two rotating rods 76 on the same side rotate, the elliptical plate 75 fixedly connected thereto can be driven to rotate with the center of the rotating rod 76 as the center point. When the elliptical plate 75 rotates along with the rotating rod 76, the rectangular block 1 74 rotatably connected to its upper end is slidably connected to the slide groove 1 73 on the same side, and the connecting plate 72 is fixedly connected to the round block 71, and the round block 71 is rotatably connected to the upper end of the operating table 81. Therefore, when the elliptical plate 75 rotates, the rectangular block 1 74 can slide in the corresponding slide groove 1 73, and then pull the connecting plate 72 to rotate with the center of the round block 71 as the center point, and the rotation amplitude of the connecting plate 72 is equal to the length of the slide groove 1 73.

[0051] Since the rectangular block 77 is rotatably connected to the upper end of the connecting plate 72 and is slidably connected to the inner surface of the C-shaped block 783 located at the lower part, when the connecting plate 72 swings, the C-shaped block 783 can be driven to move left and right. Since the two C-shaped blocks 783 on the same side are fixedly connected together by the connecting block 785, when one of the C-shaped blocks 783 moves left and right with the connecting plate 72, the two C-shaped blocks 783 can drive the clamping columns 782 fixedly connected thereto to slide in the corresponding circular holes 781. Since the clamping columns 782 on both sides are symmetrically distributed, the clamping columns 782 on both sides move closer to each other when moving, and the clamping columns 782 on both sides move toward each other. When the clamping column 782 approaches the wheelchair frame to be clamped, since the inner cavity of the cylindrical groove 7842 is slidably connected with the extrusion head 7841, and the extrusion head 7841 and the cylindrical groove 7842 are fixedly connected with the spring 7843, when the extrusion head 7841 and the wheelchair frame are close to each other, a partial buffer space can be provided to avoid the wheelchair frame from being clamped, thereby affecting the subsequent processing accuracy, and the rectangular groove 7845 provided on the outer surface of the clamping column 782 plays a guiding and limiting role for the guide block 7844, so that the extrusion head 7841 can only move left and right with the guide block 7844 under the guiding and limiting role of the rectangular groove 7845;

[0052] As can be seen from the above, the lower end of the mounting plate 51 is fixedly connected to the two arc plates 3, the upper end thereof is fixedly connected to the fixing plate 61, and the four pulleys 63 are fixedly connected to the operating table 81, and the lower end of the operating table 81 is fixedly connected to the transmission rod 42. Therefore, when the transmission rod 42 rotates, the entire device rotates along the inner cavity of the annular groove 2 with the two arc plates 3. When the entire device rotates half a circle, the extrusion head 7841 on one side can loosen the wheelchair frame that has been welded, and the extrusion head 7841 on the rear side can clamp and fix the wheelchair frame placed in the middle. Every half turn of the C-shaped baffle 85 will move to the top of the wheelchair frame to be welded. Therefore, when the welding process is completed, it is only necessary to control the transmission rod 42 to rotate half a circle.

[0053] It should be noted that the specific installation method of the motor 41, the circuit connection method and the control method used in the present invention are all conventional designs and will not be elaborated in detail in the present invention.

[0054] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A wheelchair frame welding device, comprising a base (1), characterized in that: A circular groove (2) is provided at the edge of the upper end of the base (1), and two symmetrically distributed arc-shaped plates (3) are slidably connected to the inner surface of the circular groove (2). A mounting groove (4) is provided in the middle of the upper end of the base (1), and a reciprocating sliding component (5) is fixedly installed on the upper ends of the two arc-shaped plates (3). A transmission component (6) is fixedly installed on the upper part of the outer surface of the reciprocating sliding component (5), and a blocking component (8) is fixedly installed on the middle part of the upper side of the outer surface of the transmission component (6). Two groups of symmetrically distributed clamping components (7) are fixedly installed on the front and rear parts of the outer surface of the blocking component (8).

2. A wheelchair frame welding device according to claim 1, characterized in that: A motor (41) is fixedly mounted on the front portion of the bottom wall of the installation groove (4), and a transmission rod (42) is rotatably connected to the rear portion of the bottom wall of the installation groove (4). A belt (44) is fixedly connected to the output end of the motor (41) and the middle portion of the outer surface of the transmission rod (42). The output end of the motor (41) is fixedly connected to the belt pulley (43) on the same side via a coupling, and the outer surfaces of the two belt pulleys (43) are commonly wound with a belt (44).

3. The wheelchair frame welding equipment according to claim 1, characterized in that: The reciprocating sliding assembly (5) comprises a mounting plate (51) fixedly connected to the upper ends of the two arc-shaped plates (3); a half gear (52) is rotatably connected to the middle of the upper end of the mounting plate (51); an elliptical inner gear ring (53) is slidably connected to the left side wall and the right side wall of the inner surface of the mounting plate (51); the outer surface of the half gear (52) and the inner surface of the elliptical inner gear ring (53) are meshed with each other; a guide groove (54) penetrating the inner cavity of the mounting plate (51) is provided in the middle of the left end and the middle of the right end of the mounting plate (51); the inner surfaces of the two guide grooves (54) are slidably connected to C-shaped plates (55); the ends of the two C-shaped plates (55) close to each other are fixedly connected to the middle of the left end and the middle of the right end of the elliptical inner gear ring (53) respectively.

4. A wheelchair frame welding device according to claim 3, characterized in that: The transmission assembly (6) comprises a fixed plate (61) fixedly connected to the upper end of the mounting plate (51), a second pulley (62) being rotatably connected to the middle of the upper end of the fixed plate (61), two groups of third pulleys (63) symmetrically distributed in a left-right manner being rotatably connected to the front and rear ends of the upper end of the fixed plate (61), and the outer surfaces of the two third pulleys (63) located at the front and the two third pulleys (63) located at the rear are respectively wound with a second belt (64) together with the second pulley (62).

5. The wheelchair frame welding equipment according to claim 4, characterized in that: The blocking assembly (8) comprises an operating table (81) whose upper ends are connected to the four pulleys (63) for rotation, a partition (82) is fixedly connected to the middle of the upper end of the operating table (81), a rectangular through hole (83) penetrating the rear side of the partition (82) is provided in the middle of the upper side of the front end of the partition (82), a slide groove (84) is provided in the middle of the left end and the middle of the right end of the operating table (81), a C-shaped baffle (85) is slidably connected to the inner surfaces of the two slide grooves (84), and a multi-axis welding gun is fixedly connected to the middle of the top wall of the C-shaped baffle (85).

6. The wheelchair frame welding equipment according to claim 5, characterized in that: The upper parts of the ends of the two C-shaped plates (55) that are close to each other are fixedly connected to the left and right ends of the C-shaped baffle (85) respectively.

7. The wheelchair frame welding equipment according to claim 5, characterized in that: The two groups of clamping assemblies (7) include two round blocks (71) rotatably connected to the rear upper end of the operating table (81), the two round blocks (71) are symmetrically distributed on the left and right, the outer surfaces of the two round blocks (71) are fixedly connected to a connecting plate (72), the middle parts of the upper ends of the two connecting plates (72) are provided with a slide groove (73), the inner surfaces of the two slide grooves (73) are slidably connected to a rectangular block (74), and the lower ends of the two rectangular blocks (74) are rotatably connected to an elliptical The two elliptical plates (75) are fixedly connected to a rotating rod (76) at one side of the lower ends of the two elliptical plates (75) away from each other, the lower ends of the two rotating rods (76) pass through the upper end of the operating table (81) and are fixedly connected to the middle part of the upper end of the pulley three (63) on the same side, the upper front parts of the two connecting plates (72) are rotatably connected to the rectangular block two (77), and the left and right parts of the rear side of the middle part of the upper end of the operating table (81) are fixedly connected to two groups of symmetrically distributed limit plates (78).

8. The wheelchair frame welding equipment according to claim 7, characterized in that: The upper and lower parts of the ends of the two circular holes (781) on the same side that are close to each other are both provided with circular holes (781); the inner surfaces of the two circular holes (781) located at the upper part and the two circular holes (781) located at the lower part are both slidably connected with a clamping column (782); the middle parts of the rear sides of the outer surfaces of the two clamping columns (782) are both fixedly connected with a C-shaped block (783); the left ends of the two clamping columns (782) on the same side are both slidably installed with a buffer assembly (784); the ends of the two C-shaped blocks (783) on the same side that are close to each other are both fixedly connected with a connecting block (785); and the second rectangular block (77) on the same side is both slidably connected to the inner surface of the C-shaped block (783) located at the lower part on the same side.

9. The wheelchair frame welding equipment according to claim 8, characterized in that: The buffer assembly (784) includes an extrusion head (7841) slidably connected to the right end of the clamping column (782), a cylindrical groove (7842) is provided at the right end of the clamping column (782), the extrusion head (7841) is slidably connected to the inner cavity of the cylindrical groove (7842), a spring (7843) is fixedly connected to one end of the extrusion head (7841) and the cylindrical groove (7842) that are close to each other, a guide block (7844) is fixedly connected to the middle of the front side and the middle of the rear side of the outer surface of the extrusion head (7841), a rectangular groove (7845) extending to the inner cavity of the cylindrical groove (7842) is provided at the front right side and the rear right side of the outer surface of the clamping column (782), and the two guide blocks (7844) are respectively slidably connected to the inner cavity of the rectangular groove (7845) on the same side.

10. The wheelchair frame welding equipment according to claim 7, characterized in that: The upper end of the transmission rod (42) passes through the mounting plate (51) and is fixedly connected to the lower end of the operating table (81), and the upper portion of the outer surface of the transmission rod (42) is fixedly connected to the inner surface of the half gear (52) and the inner surface of the second pulley (62).

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