Welding spherical part polishing equipment

Abstract

The invention relates to the technical field of metal ball grinding, discloses welded spherical part polishing equipment, and solves the problems that in existing equipment, after a spherical part is clamped by a clamping jaw, the welding scar positioning and calibration capacity is insufficient, and the welding scar polishing effect can be affected once a welding scar deviates from a preset position. The spherical part is flexibly clamped through the clamping seat, the universal ball seat and the rubber pad, the aligning mechanism is assembled in the hollow cavity of the clamp, through the synergistic effect of the driving wheel, the pressure detection unit and the reversing assembly, the position of a crator is accurately detected, the direction of the crator is efficiently adjusted, and it is ensured that the crator can be accurately aligned with a polishing area; and a reliable guarantee is provided for subsequent polishing operation.

Description

Technical Field

[0001] The invention relates to the technical field of metal ball grinding, in particular to a welding spherical part polishing device. Background Art

[0002] Spherical parts (also known as hollow metal balls) are typically welded together from two hemispherical metal shells. They are widely used in industrial and decorative applications, such as railing fittings, mesh welding balls, and metal decorative balls. However, after welding, a circular weld scar forms on the outer surface of the spherical part, which not only affects its appearance but may also adversely affect subsequent use. Therefore, polishing equipment is required to remove the weld scar.

[0003] like Figure 1 As shown in the figure, the existing spherical polishing equipment mainly consists of a pair of jaws and an abrasive belt. The jaws are used to clamp the spherical part and drive it to rotate; the abrasive belt is assembled on the driving mechanism and grinds the weld scar on the surface of the spherical part through unidirectional motion. However, before polishing, the annular weld scar on the outer surface of the spherical part needs to be adjusted to be in the same rotation plane as the abrasive belt surface (such as Figure 12 ) to ensure the polishing effect.

[0004] Currently, there are two main ways to achieve this adjustment. The first is to manually load the material and adjust the weld scar position manually. This method has a low degree of automation and slow production efficiency, making it difficult to meet the needs of large-scale production. The second is to use a feeding mechanism based on a vision system. This mechanism uses a vision system to detect the position of the weld scar on the spherical part and adjusts it to a preset angle so that the weld scar aligns with the surface of the sanding belt when the spherical part is loaded into the middle of the clamping jaws. However, the structural characteristics of the spherical part make it prone to rolling. During the docking process between the feeding mechanism and the clamping jaws, the spherical part is prone to uncontrolled rolling, causing the weld scar to deviate from the preset position, which in turn affects the polishing effect of the weld scar and prevents it from being fully polished. Summary of the Invention

[0005] The purpose of the present invention is to provide a welding spherical part polishing device, which solves the problem that in existing equipment, when the spherical part is clamped by the clamping claw, the positioning and calibration capabilities of the weld scar are insufficient, and once the weld scar deviates from the preset position, the polishing effect of the weld scar will be affected.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a welding spherical part polishing device, comprising a workbench, on which an abrasive belt is assembled through a driving mechanism, and further comprising: A pair of fixtures, which are coaxially rotatably assembled on a workbench, one side of one of the fixtures is provided with a motor to control its rotation, and the other side of the fixture is provided with a slide module to control its axial movement. The clamping ends of the fixtures are provided with multiple universal ball seats distributed along the circumference of the shaft, and the universal ball seats elastically protrude from the clamping end surface of the fixture; A hollow cavity is formed in the middle of the clamp; The adjustment mechanism is used to adjust the orientation of the weld scar. The adjustment mechanism includes a reversing assembly, which is assembled on the movable seat of the slide module. An extension frame is provided on one side of the reversing assembly, and the end of the extension frame extends into the hollow cavity of the corresponding fixture. The end of the extension frame is equipped with: a driving wheel for driving the spherical part to rotate, and a pressure detection unit for detecting the weld scar. The reversing assembly controls the rotation direction of the driving wheel, and further controls the rotation direction of the spherical part.

[0007] As a further description of the above technical solution: the clamp includes a clamp seat, the universal ball seat is movably assembled inside the clamp seat through a support rod on one side, a spring is sleeved on the surface of the support rod, and a plurality of circumferentially distributed rubber pads are also provided on one side of the clamp seat.

[0008] As a further description of the above technical solution: a support bearing is provided on the upper surface of the movable seat, a support sleeve is fixedly connected to one side of the inner ring of the support bearing, and a clamping seat is fixedly assembled on one end of the support sleeve.

[0009] As a further description of the above technical solution: a hoop for rotating and assembling the driving wheel is provided at the end of the extension frame, and a driving assembly for controlling the rotation of the driving wheel is provided on the upper side of the extension frame.

[0010] As a further description of the above technical solution: the drive assembly includes a worm wheel arranged in the middle of the driving wheel rotating shaft, the upper side of the worm wheel is meshed with a worm, one side of the worm is coaxially connected to a rotating shaft one, one end of the rotating shaft one is connected to a rotating shaft two through a transmission structure, one end of the rotating shaft two extends to one side of the inner shaft core, and is fixedly connected to the output end of the servo motor two assembled on one side of the inner shaft core.

[0011] As a further description of the above technical solution: the pressure detection unit is assembled at the center position of the inner side of the clamp seat through a movable frame arranged on one side of the hoop, and the measuring part of the pressure detection unit is fixedly connected to the universal ball seat 2.

[0012] As a further description of the above technical solution: the reversing assembly includes an outer shaft sleeve fixedly assembled on the upper side of the movable seat, an inner shaft core is rotatably arranged on the inner side of the outer shaft sleeve, the inner shaft core is coaxially arranged with the clamp, the extension frame is fixedly connected to one side of the inner shaft core, and the second body of the servo motor is fixedly assembled on one side of the inner shaft core.

[0013] As a further description of the above technical solution: an arc groove is provided on the surface of the outer sleeve, and a guide rod is fixedly provided on the surface of the inner shaft core. The guide rod moves inside the arc groove. When the guide rod slides from one side to the other side in the arc groove, the inner shaft core will rotate by a preset angle, and during the rotation, the inner shaft core will produce a retreat action in the direction away from the spherical part, and return to the initial position when the rotation is completed.

[0014] As a further description of the above technical solution: a control component for controlling the movement of the inner shaft core is provided on the upper side of the outer sleeve, and the control component includes two springs and a servo electric cylinder respectively assembled on both sides of the outer sleeve, one end of the two springs is fixedly connected to one side of the guide rod, and the output end of the servo electric cylinder is fixedly connected to the other side surface of the guide rod through a pull rope.

[0015] As a further description of the above technical solution: Mounting frame 1 and mounting frame 2 for assembling spring 2 and servo electric cylinder are respectively provided on both sides of the outer sleeve, wherein the upper sides of mounting frame 1 and mounting frame 2 are both rotating structures, and spring 2 and servo electric cylinder are respectively assembled on the corresponding rotating structures. Through the rotating structure, spring 2 and servo electric cylinder can automatically adapt to changes in the direction of tension.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. The clamp of the present invention includes a clamping seat, a universal ball seat and a rubber pad, which can flexibly clamp the spherical part and adjust its orientation. The adjustment mechanism is assembled in the hollow cavity of the clamp. Through the coordinated action of the driving wheel, the pressure detection unit and the reversing component, it can accurately detect the position of the weld scar and efficiently adjust its orientation, ensuring that the weld scar can be accurately aligned with the polishing area, providing reliable protection for subsequent polishing operations, and significantly improving the accuracy and efficiency of the entire polishing process.

[0017] 2. The reversing assembly of the present invention accurately controls the maximum rotation angle of the inner shaft core through the cooperation of the arc groove and the guide rod, ensuring the high precision of the driving wheel when switching positions. At the same time, the disconnection design of the driving wheel when switching positions effectively avoids the influence of the rotational internal stress on the rubber tire on the subsequent detection accuracy, further optimizing the polishing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the assembly structure of the clamp, adjustment mechanism, and stand of the present invention; Figure 3 It is a schematic diagram of the structure of the clamp and the adjustment mechanism of the present invention; Figure 4 Schematic diagram of the fixture structure of the present invention; Figure 5Schematic diagram of the cross-sectional structure of the clamp of the present invention; Figure 6 Schematic diagram of the cross-sectional structure of the clamping base of the present invention; Figure 7 This is a schematic diagram of the assembly structure of the drive wheel, drive assembly, and pressure detection unit of the present invention; Figure 8 This is a schematic diagram of the disassembled structure of the driving wheel, driving assembly, and pressure detection unit of the present invention; Figure 9 It is a structural diagram of the adjustment mechanism and control assembly of the present invention; Figure 10 This is a schematic diagram of the internal structure of the outer sleeve of the present invention; Figure 11 It is a schematic diagram of the top view of the adjustment mechanism and control assembly of the present invention; Figure 12 This is a schematic diagram of a state in which the weld scar on the surface of the spherical part and the surface of the abrasive belt are facing each other; Figure 13 It is a schematic diagram of the spherical component structure of the present invention.

[0019] Figure: 10, abrasive belt; 20, fixture; 21, motor 1; 22, slide module; 23, moving seat; 24, clamping seat; 25, universal ball seat 1; 251, support rod; 252, spring 1; 26, rubber pad; 27, support sleeve; 28, support bearing; 30, adjustment mechanism; 31, outer sleeve; 311, arc groove; 32, inner shaft core; 321, guide rod; 33, control component; 331, spring 2; 332, installation Frame 1; 333, servo cylinder; 334, pull rope; 335, mounting frame 2; 34, extension frame; 341, hoop; 35, drive assembly; 351, rotating shaft 1; 352, rotating shaft 2; 353, worm; 354, worm gear; 355, servo motor 2; 36, driving wheel; 37, pressure detection unit; 371, universal ball seat 2; 372, movable frame; 40, workbench; 41, vertical frame; 50, spherical part; 51, weld scar. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0021] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings.

[0022] Combine Figures 1-13A welding spherical part polishing device includes a workbench 40, on which an abrasive belt 10 is assembled through a driving mechanism. The driving mechanism is composed of multiple wheels and a driving system. The multiple wheels tighten the tension of the abrasive belt 10, and then the driving system controls the rotation of the wheels to make the abrasive belt 10 move unidirectionally to polish the weld scar 51 on the surface of the spherical part 50.

[0023] A pair of fixtures 20 are mounted on a workbench 40, coaxially assembled via two uprights 41 on the workbench 40. A motor 1 21 controls rotation on one fixture 20, while a slide module 22 controls axial movement on the other fixture 20. The slide module 22 propels the fixture 20 toward the opposing fixture 20, clamping the spherical member 50 between the two fixtures 20. When the motor 1 21 controls the active rotation of the corresponding fixture 20, the other fixture 20 passively rotates, causing the spherical member 50 to rotate and, in conjunction with the active abrasive belt 10, polish the weld scar 51 on its surface.

[0024] Combine Figures 3 to 6 When the spherical member 50 is clamped by the two clamps 20, in order to facilitate the adjustment of the orientation of the weld scar 51, the clamp 20 of the present invention includes a clamping seat 24. The clamping end of the clamping seat 24 is provided with a plurality of universal ball seats 25 distributed along the axial circumference. The universal ball seat 25 is movably assembled inside the clamping seat 24 through a support rod 251 on one side. The surface of the support rod 251 is provided with a spring 252. The spring 252 elastically pushes the universal ball seat 25 to protrude from the clamping end surface of the clamp 20. In the process of pushing the corresponding clamping seat 24 through the slide module 22 to cause the two clamping seats 24 to clamp the spherical member 50, the universal ball seat 25 elastically protruding from the surface of the clamping seat 24 will preferentially contact and clamp the spherical member 50, so that the spherical member 50 clamped by the universal ball seat 25 can be adjusted and rotated.

[0025] One side of the clamping seat 24 is also equipped with multiple circumferentially distributed rubber pads 26, preferably friction rubber pads. Once the weld scar 51 of the spherical member 50 is aligned, the two clamping seats 24 are pushed together. Universal ball seat 1 25 is squeezed and pushed into the interior of the clamping seat 24. The spherical member 50 is then held in place by the rubber pads 26. The spherical member 50, held by the rubber pads 26, rotates with the clamping seat 24, allowing the movable abrasive belt 10 to polish the weld scar 51.

[0026] Combine Figures 2 to 7 In order to cope with the situation where the initial position of the weld scar 51 needs to be detected and adjusted after the spherical part 50 is movably clamped by the universal ball seat 25, a hollow cavity is opened in the middle of the clamp 20, and an adjustment mechanism 30 for adjusting the position of the weld scar 51 is installed in the hollow cavity.

[0027] The adjustment mechanism 30 includes a reversing assembly mounted on the movable seat 23 of the slide module 22. An extension frame 34 is provided on one side of the reversing assembly. The end of the extension frame 34 extends into the hollow cavity of the corresponding clamp 20, and the extension frame 34 and the clamp 20 are in a non-contact structure.

[0028] The end of the extension frame 34 is equipped with a driving wheel 36 for driving the spherical member 50 to rotate. The tire of the driving wheel 36 is preferably a rubber wheel so as to frictionally fit the surface of the spherical member 50. The spherical member 50 rotates along a circle under the drive of the driving wheel 36. Pressure detection unit 37 is used to detect weld scar 51. Pressure detection unit 37 is preferably a pressure sensor, such as a small cylindrical pressure sensor. Because weld scar 51 protrudes from the surface of spherical member 50, when spherical member 50 is driven by drive wheel 36 and weld scar 51 passes the position of pressure detection unit 37, it squeezes the measuring end of pressure detection unit 37, causing pressure changes, thereby detecting the position of weld scar 51. The reversing assembly is used to control the rotation direction of drive wheel 36, and thus the rotation direction of spherical member 50.

[0029] Specifically, when the spherical member 50 is movably clamped by the universal ball seat 25, the driving wheel 36 will closely fit the surface of the spherical member 50. Then, according to the maximum circumference of the outer surface of the spherical member 50, the driving wheel 36 will control the spherical member 50 to rotate one circle in one direction. Figure 13 It is understood that when the spherical member 50 rotates in this direction, the weld scar 51 will come into contact with the pressure detection unit 37 twice, for example, Figure 13 In the embodiment, when the spherical member 50 rotates along the arc path in the horizontal direction, there are two intersection points between the arc in the horizontal direction and the weld scar 51, namely Figure 13 The other intersection point is located at the back of the spherical member 50. The positions of the two contact points on the surface of the spherical member 50 are recorded by the rotation speed of the spherical member 50 and the contact time between the pressure detection unit 37 and the weld scar 51.

[0030] After the spherical member 50 completes one rotation, the two clamping seats 24 are first controlled to move closer together, causing the rubber pads 26 to securely clamp the spherical member 50. During this process, the tires of the drive wheels 36 adaptively deform to accommodate the change in spacing. Furthermore, the pressure change data detected by the pressure detection unit 37 during the movement of the clamping seats 24 is not counted.

[0031] After the rubber pad 26 clamps the spherical member 50, the reversing assembly controls the drive wheel 36 to switch its rotational direction. Once the direction is switched, the two clamping seats 24 are moved away from each other, allowing the spherical member 50 to be clamped only by the universal ball seat 1 25. The drive wheel 36 then controls the spherical member 50 to rotate one full revolution in the switched direction. During this process, the pressure detection unit 37 and the weld scar 51 again create two contact points, and the locations of these two new contact points on the surface of the spherical member 50 are recorded.

[0032] Finally, the positions of the four contact points are measured to determine the maximum circumferential position on the surface of the spherical member 50, which is the position of the weld scar 51. Based on the measured position of the weld scar 51, the driving wheel 36 controls the spherical member 50 to adjust the corresponding angle, thereby accurately adjusting the weld scar 51 to the preset position.

[0033] It is worth noting that the positive pressure applied by the driving wheel 36 to the spherical member 50 and the pressure applied by the plurality of universal ball seats 25 to the spherical member 50 are located on the same axis. This design can significantly improve the stability of the driving wheel 36 when driving the spherical member 50 to rotate.

[0034] It should also be noted that if the weld scar 51 is already in contact with the pressure detection unit 37 in the initial state, and the driving wheel 36 drives the spherical member 50 to rotate in the same direction as the weld scar 51, the pressure change detected by the pressure detection unit 37 will be relatively small. In this case, the orientation of the weld scar 51 can be directly determined.

[0035] The coordination of the above structures is controlled by a controller.

[0036] Combine Figure 4-Figure 5 A support bearing 28 is provided on the upper surface of the movable seat 23, and a support sleeve 27 is fixedly connected to one side of the inner ring of the support bearing 28. A clamping seat 24 is fixedly assembled on one end of the support sleeve 27. The clamping seat 24 is rotatably assembled on the movable seat 23 through the support bearing 28, so that the clamping seat 24 can move linearly with the movable seat 23 and can also cooperate with another clamping seat 24 to perform passive rotation.

[0037] Combine Figure 5-Figure 8The end of the extension frame 34 is provided with a hoop 341 for rotating the drive wheel 36. A drive assembly 35 for controlling the rotation of the drive wheel 36 is located on the upper side of the extension frame 34. The drive assembly 35 includes a worm gear 354 positioned in the middle of the rotation axis of the drive wheel 36. The upper side of the worm gear 354 meshes with the worm 353. When the worm 353 rotates, the worm gear 354 drives the drive wheel 36 to rotate. One side of the worm 353 is coaxially connected to a first rotating shaft 351. One end of the first rotating shaft 351 is connected to a second rotating shaft 352 via a transmission structure, preferably a gear transmission structure. One end of the second rotating shaft 352 extends to the side of the inner shaft core 32 and is fixedly connected to the output end of a second servo motor 355 mounted on the side of the inner shaft core 32. The second rotating shaft 352 is driven by the second servo motor 355 to rotate. The second rotating shaft 352 drives the first rotating shaft 351, controlling the rotation of the worm 353, thereby controlling the rotation of the drive wheel 36 and ultimately controlling the rotation of the spherical member 50.

[0038] Combine Figure 7-Figure 8 The pressure detection unit 37 is mounted on the center of the inner side of the clamping seat 24 via a movable bracket 372 provided on one side of the hoop 341, ensuring that the measuring end of the pressure detection unit 37 can contact the center of the side of the spherical member 50. The measuring portion of the pressure detection unit 37 is fixedly connected to a second universal ball seat 371. With the configuration of the second universal ball seat 371, the pressure detection unit 37 achieves rolling contact with the surface of the spherical member 50, thereby improving the stability of the spherical member 50 during rotation.

[0039] Combine Figures 9-11 The reversing assembly includes an outer shaft sleeve 31 fixedly assembled on the upper side of the movable seat 23, and an inner shaft core 32 is rotatably arranged inside the outer shaft sleeve 31, and the inner shaft core 32 is coaxially arranged with the clamp 20. The extension frame 34 is fixedly connected to one side of the inner shaft core 32, and passes through the inner side of the support bearing 28 and the support sleeve 27 in sequence, and finally extends into the hollow cavity of the clamp seat 24. The body of the servo motor 2 355 is fixedly assembled on one side of the inner shaft core 32. In addition, the extension frame 34 and the support bearing 28 and the support sleeve 27 are connected in a non-contact manner. The rotation of the support sleeve 27, the support bearing 28 and the clamp seat 24 connected to one side of the support sleeve 27 and the rotation of the extension frame 34 and the end structure of the extension frame 34 do not affect each other.

[0040] An arc-shaped groove 311 is formed on the surface of the outer sleeve 31, and a guide rod 321 is fixedly provided on the surface of the inner shaft core 32. The guide rod 321 moves inside the arc-shaped groove 311. When the guide rod 321 slides from one side to the other side in the arc-shaped groove 311, the inner shaft core 32 will rotate by a preset angle. During the rotation, the inner shaft core 32 will retreat in the direction away from the spherical member 50 and return to the initial position when the rotation is completed.

[0041] A control assembly 33 for controlling the movement of the inner shaft core 32 is located on the upper side of the outer sleeve 31. This assembly comprises a second spring 331 and a servo cylinder 333, mounted on either side of the outer sleeve 31. One end of the second spring 331 is fixedly connected to one side of the guide rod 321, while the output end of the servo cylinder 333 is fixedly connected to the other side of the guide rod 321 via a pull cord 334. The pull cord 334 accommodates the height variations between the guide rod 321 and the output end of the servo cylinder 333 as the guide rod 321 moves in an arc shape on the outer sleeve 31.

[0042] Specifically, the servo cylinder 333 pulls the guide rod 321 via the pull cord 334, causing the guide rod 321 to overcome the elastic force of the second spring 331 and move in one direction within the arcuate slot 311, thereby controlling the rotation of the inner shaft core 32 in one direction. When the output end of the servo cylinder 333 extends outward, the elastic force of the second spring 331 pulls the guide rod 321 back within the arcuate slot 311, thereby controlling the rotation of the inner shaft core 32 in the opposite direction. Through this arrangement, when the rotation of the inner shaft core 32 is actively controlled, the extension frame 34 and the drive wheel 36 connected to one end of the extension frame 34 also rotate accordingly, thereby achieving switching control of the rotation direction of the drive wheel 36.

[0043] Furthermore, by presetting the length of the arcuate slot 311 and combining it with the limiting effect of the guide rod 321, the maximum rotation angle of the inner shaft core 32 can be precisely controlled. This not only facilitates precise control of the rotation angle of the drive wheel 36 when switching positions, but also further improves the accuracy of the two contact points between the pressure detection unit 37 and the weld scar 51, thereby making the position detection of the weld scar 51 on the surface of the spherical member 50 more accurate.

[0044] For example, assume that the arcuate slot 311 of a predetermined length is combined with the guide rod 321 to allow the inner shaft 32 to rotate a maximum of 90 degrees. During operation, the guide rod 321 is first positioned at one end of the arcuate slot 311. The drive wheel 36 then drives the spherical member 50 in a fixed direction for one rotation, generating two contact points between the pressure detection unit 37 and the weld scar 51. Subsequently, by controlling the rotational orientation of the drive wheel 36, simply by moving the guide rod 321 from one end to the other within the arcuate slot 311, the drive wheel 36 can be accurately controlled to rotate 90 degrees from its original orientation. The drive wheel 36 then drives the spherical member 50 again in this new orientation, generating two new contact points between the pressure detection unit 37 and the weld scar 51. Because the accuracy of the drive wheel 36's position switching is guaranteed, the accuracy of the two subsequent contact points is also improved. Ultimately, the accuracy of the weld scar 51's position on the surface of the spherical member 50, calculated based on these four contact points, is significantly improved.

[0045] In addition, if Figure 11As shown, the arcuate groove 311 is arranged in a “(” shape. When the guide rod 321 moves from one end to the middle inside the arcuate groove 311, the inner shaft core 32 moves away from the spherical member 50 inside the outer sleeve 31. Subsequently, when the guide rod 321 moves from the middle to the other end, the inner shaft core 32 returns to the initial distance inside the outer sleeve 31.

[0046] When this motion is manifested on the drive wheel 36, it not only switches orientation but also moves away from the spherical member 50. This design allows the drive wheel 36 to break contact with the surface of the spherical member 50 during this orientation change. This is done to prevent rotational internal stress from being generated in the rubber tire of the drive wheel 36 when the drive wheel 36 switches orientation on the surface of the spherical member 50. If this internal stress persists even after the rubber pad 26 releases its grip on the spherical member 50, it could cause a certain amount of rotation of the spherical member 50, thereby affecting the measurement accuracy of the two new contact points generated during the second inspection of the weld scar 51 by the pressure detection unit 37.

[0047] Combine Figures 9-11 As shown, mounting bracket 1 332 and mounting bracket 2 335 for assembling spring 2 331 and servo electric cylinder 333 are respectively provided on both sides of the outer sleeve 31, wherein the upper sides of mounting bracket 1 332 and mounting bracket 2 335 are both rotating structures, and the rotating structure is a mounting seat that can rotate freely. Spring 2 331 and servo electric cylinder 333 are respectively assembled on the corresponding mounting seats. Through the rotating structure, spring 2 331 and servo electric cylinder 333 can automatically adapt to changes in the direction of tension.

[0048] Specifically, as guide rod 321 moves within arcuate slot 311, the angle between it and mounting bracket 1 332 and mounting bracket 2 335 continuously changes. Consequently, the direction of the pulling force generated between spring 2 331 , servo cylinder 333 , and guide rod 321 also changes accordingly. By providing a rotating structure, the pulling force of spring 2 331 and servo cylinder 333 automatically adapts to this change, always pointing in the direction of guide rod 321 . This not only improves the pulling effect of spring 2 331 and servo cylinder 333 on guide rod 321, but also makes the structural arrangement of guide rod 321 more rational.

[0049] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A welding spherical part polishing device, comprising a workbench (40), on which an abrasive belt (10) is mounted via a driving mechanism, characterized in that: Also includes: A pair of clamps (20) are coaxially rotatably assembled on a workbench (40), one side of one of the clamps (20) is provided with a motor (21) for controlling its rotation, and one side of the other clamp (20) is provided with a slide module (22) for controlling its axial movement, and a clamping end of the clamp (20) is provided with a plurality of universal ball seats (25) distributed along the circumference of the axis, and the universal ball seats (25) elastically protrude from the clamping end surface of the clamp (20); A hollow cavity is formed in the middle of the clamp (20); The adjusting mechanism (30) is used to adjust the orientation of the weld scar (51). The adjusting mechanism (30) includes a reversing assembly, which is assembled on the movable seat (23) of the slide module (22). An extension frame (34) is provided on one side of the reversing assembly. The end of the extension frame (34) extends into the hollow cavity of the corresponding clamp (20). The end of the extension frame (34) is equipped with: a driving wheel (36) for driving the spherical part (50) to rotate, and a pressure detection unit (37) for detecting the weld scar (51). The reversing assembly controls the rotation direction of the driving wheel (36) and further controls the rotation direction of the spherical part (50).

2. The welding spherical part polishing device according to claim 1, characterized in that: The clamp (20) includes a clamp seat (24), wherein the universal ball seat (25) is movably assembled inside the clamp seat (24) via a support rod (251) on one side, a spring (252) is sleeved on the surface of the support rod (251), and a plurality of circumferentially distributed rubber pads (26) are further provided on one side of the clamp seat (24).

3. The welding spherical component polishing device according to claim 2, characterized in that: A support bearing (28) is provided on the upper surface of the movable seat (23), and a support sleeve (27) is fixedly connected to one side of the inner ring of the support bearing (28). A clamping seat (24) is fixedly assembled on one end of the support sleeve (27).

4. The welding spherical component polishing device according to claim 1, characterized in that: The end of the extension frame (34) is provided with a hoop (341) for rotating and assembling the driving wheel (36), and the upper side of the extension frame (34) is provided with a driving assembly (35) for controlling the rotation of the driving wheel (36).

5. The welding spherical component polishing device according to claim 4, characterized in that: The driving assembly (35) includes a worm wheel (354) arranged in the middle of the rotating shaft of the driving wheel (36), the upper side of the worm wheel (354) is meshingly connected to a worm (353), one side of the worm (353) is coaxially connected to a rotating shaft (351), one end of the rotating shaft (351) is connected to a rotating shaft (352) through a transmission structure, and one end of the rotating shaft (352) extends to one side of the inner shaft core (32) and is fixedly connected to the output end of the servo motor (355) assembled on one side of the inner shaft core (32).

6. The welding spherical component polishing device according to claim 4, characterized in that: The pressure detection unit (37) is assembled at the center position of the inner side of the clamping seat (24) through a movable frame (372) arranged on one side of the hoop (341), and the measuring part of the pressure detection unit (37) is fixedly connected to the universal ball seat 2 (371).

7. The welding spherical component polishing device according to claim 5, characterized in that: The reversing assembly includes an outer shaft sleeve (31) fixedly assembled on the upper side of the movable seat (23), an inner shaft core (32) is rotatably arranged inside the outer shaft sleeve (31), the inner shaft core (32) is coaxially arranged with the clamp (20), the extension frame (34) is fixedly connected to one side of the inner shaft core (32), and the body of the servo motor 2 (355) is fixedly assembled on one side of the inner shaft core (32).

8. The welding spherical component polishing device according to claim 7, characterized in that: An arc groove (311) is provided on the surface of the outer sleeve (31), and a guide rod (321) is fixedly provided on the surface of the inner shaft core (32). The guide rod (321) moves inside the arc groove (311). When the guide rod (321) slides from one side to the other side in the arc groove (311), the inner shaft core (32) rotates by a preset angle, and during the rotation process, the inner shaft core (32) moves back in a direction away from the spherical member (50), and returns to an initial position when the rotation is completed.

9. The welding spherical component polishing device according to claim 8, characterized in that: A control assembly (33) for controlling the movement of the inner shaft core (32) is provided on the upper side of the outer shaft sleeve (31). The control assembly (33) includes a second spring (331) and a servo electric cylinder (333) respectively assembled on both sides of the outer shaft sleeve (31). One end of the second spring (331) is fixedly connected to one side of the guide rod (321), and the output end of the servo electric cylinder (333) is fixedly connected to the other side surface of the guide rod (321) through a pull rope (334).

10. The welding spherical component polishing device according to claim 9, characterized in that: Mounting frame 1 (332) and mounting frame 2 (335) for assembling spring 2 (331) and servo electric cylinder (333) are respectively provided on both sides of the outer sleeve (31), wherein the upper sides of mounting frame 1 (332) and mounting frame 2 (335) are both rotating structures, and spring 2 (331) and servo electric cylinder (333) are respectively assembled on the corresponding rotating structures. Through the rotating structure, spring 2 (331) and servo electric cylinder (333) can automatically adapt to changes in the direction of tension.

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