A welding ball polishing apparatus

Abstract

The present application relates to the technical field of metal ball grinding, and discloses a kind of welding spherical part polishing equipment, solve in existing equipment, when spherical part is clamped by jaw, there is deficiency in the positioning and calibration ability to welding scar, once welding scar deviates from preset position, the problem that the polishing effect of welding scar is affected.Through the flexible clamping of clamp seat, universal ball seat and rubber pad, the adjusting mechanism is assembled in the hollow cavity of the clamp, through the synergistic effect of driving wheel, pressure detection unit and reversing assembly, the position of welding scar is accurately detected and its orientation is efficiently adjusted, to ensure that welding scar can accurately align the polishing area, and provide reliable protection for subsequent polishing operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal ball grinding, in particular to a polishing device for welded spherical parts. BACKGROUND

[0002] Spherical parts (also known as hollow metal balls) are usually composed of two hemispherical metal shells combined and welded, which are widely used in industrial and decorative fields, such as railing accessory balls, net rack welded balls, metal decorative balls, etc. However, after the combined welding is completed, the outer surface of the spherical part will form a ring-shaped welding scar, which not only affects the appearance, but also may have an adverse effect on subsequent use. Therefore, the polishing device is needed to polish the welding scar.

[0003] As shown in Figure 1 , the existing polishing device for spherical parts mainly includes a pair of clamping jaws and a sand belt. The clamping jaws are used to clamp the spherical part and drive it to rotate; the sand belt is assembled on the driving mechanism and polished by one-way motion on the surface of the welding scar of the spherical part. However, before polishing, the ring-shaped welding scar on the outer surface of the spherical part needs to be adjusted to the same rotating surface as the surface of the sand belt (as shown in Figure 12 ), so as to ensure the polishing effect.

[0004] At present, there are mainly two ways to achieve this adjustment. The first way is manual feeding and manual adjustment of the welding scar position. This way has low automation degree and slow production efficiency, which is difficult to meet the needs of large-scale production. The second way is to use a feeding mechanism based on a vision system, which detects the position of the welding scar on the spherical part through the vision system and adjusts it to a preset angle, so that the welding scar corresponds to the surface of the sand belt when the spherical part is fed into the clamping jaw. However, the structural characteristics of the spherical part make it easy to roll. During the docking process of the feeding mechanism and the clamping jaw, the spherical part is easy to roll uncontrollably, which leads to the deviation of the welding scar from the preset position, and further affects the polishing effect of the welding scar, so that it cannot be fully polished. SUMMARY

[0005] The purpose of the present application is to provide a polishing device for welded spherical parts, which solves the problem that in the existing device, after the spherical part is clamped by the clamping jaw, the positioning and calibration ability of the welding scar is insufficient, and once the welding scar deviates from the preset position, the polishing effect of the welding scar is affected.

[0006] To achieve the above purpose, the present application provides the following technical scheme: a polishing device for welded spherical parts, comprising a workbench, a sand belt is assembled on the workbench through a driving mechanism, and further comprising:

[0007] A pair of clamps are coaxially assembled on the workbench, one of the clamps is provided with a motor one on one side to control the rotation, the other clamp is provided with a slide module on one side to control the axial movement, the clamping end of the clamp is provided with a plurality of universal ball seats one distributed along the circumference of the shaft, and the universal ball seat one is elastically protruded from the surface of the clamping end of the clamp;

[0008] A hollow cavity is formed in the middle of the clamp;

[0009] The adjusting mechanism is used for adjusting the position of the welding scar, and the adjusting mechanism comprises a reversing assembly assembled on the moving seat of the slide module, one side of the reversing assembly is provided with an extension frame, the extension frame extends into the hollow cavity of the corresponding clamp, and the end of the extension frame is provided with a driving wheel for driving the rotation of the spherical part and a pressure detection unit for detecting the welding scar, and the reversing assembly controls the rotation direction of the driving wheel and further controls the rotation direction of the spherical part.

[0010] As a further description of the above technical scheme: the clamp comprises a clamp seat, the universal ball seat one is movably assembled in the clamp seat through a support rod on one side, a spring one is sleeved on the surface of the support rod, and a plurality of circumferentially distributed rubber pads are further arranged on one side of the clamp seat.

[0011] As a further description of the above technical scheme: a support bearing is arranged on the upper surface of the moving seat, a support sleeve is fixedly connected to the inner ring of the support bearing on one side, and one of the clamp seats is fixedly assembled at one end of the support sleeve.

[0012] As a further description of the above technical scheme: the end of the extension frame is provided with a hoop ring for assembling the driving wheel, and a driving assembly for controlling the rotation of the driving wheel is arranged on the upper side of the extension frame.

[0013] As a further description of the above technical scheme: the driving assembly comprises a worm gear arranged in the middle of the rotation shaft of the driving wheel, the upper side of the worm gear is meshingly connected with a worm, the one side of the worm is coaxially connected with a first rotation shaft, the one end of the first rotation shaft is connected with a second rotation shaft through a transmission structure, the one end of the second rotation shaft extends to the one side of the inner shaft core, and is fixedly connected with the output end of the second servo motor assembled on the one side of the inner shaft core.

[0014] As a further description of the above technical scheme: the pressure detection unit is assembled at the center position inside the clamp through a movable frame arranged on one side of the hoop ring, and the measuring part of the pressure detection unit is fixedly connected with a second universal ball seat.

[0015] As a further description of the above technical scheme: the reversing assembly comprises an outer shaft sleeve fixedly assembled on the upper side of the moving seat, an inner shaft core rotatably arranged in 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 the one side of the inner shaft core, and the body of the second servo motor is fixedly assembled on the one side of the inner shaft core.

[0016] As a further description of the above technical solution: the outer shaft sleeve surface is provided with an arc-shaped groove, the inner shaft core surface is fixedly provided with a guide rod, the guide rod is movably arranged in the arc-shaped groove, when the guide rod slides from one side to the other side in the arc-shaped groove, the inner shaft core rotates by a preset angle, and during the rotation, the inner shaft core retreats away from the spherical member, and returns to the initial position after the rotation is completed.

[0017] As a further description of the above technical solution: the upper side of the outer shaft sleeve is provided with a control assembly for controlling the movement of the inner shaft core, the control assembly includes a spring two and a servo cylinder respectively assembled on both sides of the outer shaft sleeve, one end of the spring two is fixedly connected with one side of the guide rod, and the output end of the servo cylinder is fixedly connected with the other side surface of the guide rod through a pull rope.

[0018] As a further description of the above technical solution: the outer shaft sleeve is provided with a mounting frame one and a mounting frame two on both sides for assembling the spring two and the servo cylinder, the upper sides of the mounting frame one and the mounting frame two are rotating structures, the spring two and the servo cylinder are respectively assembled on the corresponding rotating structures, and the spring two and the servo cylinder can automatically adapt to the change of the tension direction through the rotating structures.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of the present application are:

[0020] 1. The clamp of the present application comprises a clamp seat, a universal ball seat and a rubber pad, which can flexibly clamp the spherical member and adjust its orientation, the adjusting mechanism is assembled in the hollow cavity of the clamp, and through the synergistic action of the driving wheel, the pressure detection unit and the reversing assembly, the position of the welding scar is accurately detected and the orientation thereof is efficiently adjusted, so that the welding scar can be accurately aligned with the polishing area, providing reliable protection for subsequent polishing operation, and significantly improving the precision and efficiency of the entire polishing process.

[0021] 2. The reversing assembly of the present application accurately controls the maximum rotation angle of the inner shaft core through the cooperation of the arc-shaped groove and the guide rod, ensuring the high precision of the driving wheel when switching orientation, and at the same time, the design of the driving wheel disconnecting contact when switching orientation effectively avoids the influence of the rotational internal stress on the rubber tire wheel on the subsequent detection accuracy, further optimizing the polishing effect. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of the present application;

[0023] Figure 2 is a schematic diagram of the clamp, adjusting mechanism and stand assembly structure of the present application;

[0024] Figure 3 is a schematic diagram of the clamp and adjusting mechanism structure of the present application;

[0025] Figure 4 Schematic diagram of the clamp structure of the present application;

[0026] Figure 5 Schematic diagram of the clamp structure of the present application;

[0027] Figure 6 Schematic diagram of the clamp structure of the present application;

[0028] Figure 7 Schematic diagram of the clamp structure of the present application;

[0029] Figure 8 Schematic diagram of the clamp structure of the present application;

[0030] Figure 9 Schematic diagram of the clamp structure of the present application;

[0031] Figure 10 Schematic diagram of the clamp structure of the present application;

[0032] Figure 11 Schematic diagram of the clamp structure of the present application;

[0033] Figure 12 Schematic diagram of the clamp structure of the present application;

[0034] Figure 13 Schematic diagram of the clamp structure of the present application.

[0035] In the figure: 10, sand belt; 20, clamp; 21, motor one; 22, sliding table module; 23, moving seat; 24, clamp seat; 25, universal ball seat one; 251, support rod; 252, spring one; 26, rubber pad; 27, support sleeve; 28, support bearing; 30, adjusting mechanism; 31, outer shaft sleeve; 311, arc-shaped groove; 32, inner shaft core; 321, guide rod; 33, control assembly; 331, spring two; 332, mounting frame one; 333, servo electric cylinder; 334, pull rope; 335, mounting frame two; 34, extension frame; 341, hoop; 35, driving assembly; 351, rotating shaft one; 352, rotating shaft two; 353, worm; 354, worm gear; 355, servo motor two; 36, driving wheel; 37, pressure detection unit; 371, universal ball seat two; 372, movable frame; 40, workbench; 41, stand; 50, spherical part; 51, welding scar. DETAILED DESCRIPTION

[0036] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0037] In order to further understand the present application, the present application will be described in detail with reference to the drawings.

[0038] In combination with Figures 1-13 A welding spherical part polishing device comprises a workbench 40, a sand belt 10 is assembled on the workbench 40 through a driving mechanism, the driving mechanism is composed of a plurality of wheel discs and a driving system, the sand belt 10 is tightly stretched by the plurality of wheel discs, and the rotation of the wheel discs is controlled by the driving system, so that the sand belt 10 moves in one direction to polish the welding scar 51 on the surface of the spherical part 50.

[0039] A pair of clamps 20 are arranged on the workbench 40 and are coaxially assembled through two stands 41 on the workbench 40, one clamp 20 is provided with a motor one 21 for controlling the rotation of the clamp 20, and the other clamp 20 is provided with a slide module 22 for controlling the axial movement of the clamp 20. The slide module 22 drives the clamp 20 to move towards the opposite clamp 20, so as to clamp the spherical part 50 between the two clamps 20. When the motor one 21 drives the corresponding clamp 20 to rotate actively, the other clamp 20 rotates passively, so that the spherical part 50 rotates and is polished by the movable sand belt 10.

[0040] In combination with Figures 3 to 6 When the spherical part 50 is clamped by the two clamps 20, in order to facilitate the adjustment of the position of the welding scar 51, the clamp 20 of the present application comprises a clamp seat 24, and a plurality of universal ball seats one 25 are arranged on the clamping end of the clamp seat 24 in the circumferential direction of the axial direction. The universal ball seat one 25 is movably assembled in the clamp seat 24 through a support rod 251 on one side, the surface of the support rod 251 is sleeved with a spring one 252, and the spring one 252 elastically pushes the universal ball seat one 25 to protrude from the surface of the clamping end of the clamp 20. During the process of driving the corresponding clamp seat 24 by the slide module 22 to clamp the spherical part 50 by the two clamp seats 24, the universal ball seat one 25 elastically protruding from the surface of the clamp seat 24 will first contact and clamp the spherical part 50, so that the spherical part 50 clamped by the universal ball seat one 25 can be adjusted to rotate.

[0041] The clamping seat 24 is also provided with a plurality of circumferentially distributed rubber pads 26, which are preferably friction rubber pads. After the orientation of the welding scar 51 of the spherical part 50 is adjusted, the two clamping seats 24 are further pushed to merge, at which time the universal ball seat one 25 is squeezed and pushed to the inside of the clamping seat 24, and then the spherical part 50 is clamped and fixed by the rubber pads 26. The spherical part 50 clamped by the rubber pads 26 can rotate with the clamping seat 24 to cooperate with the movable abrasive belt 10 to polish the welding scar 51.

[0042] In combination Figures 2 to 7 To cope with the situation that the initial orientation of the welding scar 51 needs to be detected and adjusted after the spherical part 50 is clamped and fixed by the universal ball seat one 25, a hollow cavity is formed in the middle of the clamp 20, and an adjusting mechanism 30 for adjusting the orientation of the welding scar 51 is arranged in the hollow cavity.

[0043] The adjusting mechanism 30 includes a reversing assembly arranged on the moving seat 23 of the sliding table module 22. The reversing assembly is provided with an extension frame 34 at one side, 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.

[0044] The end of the extension frame 34 is provided with a drive wheel 36 for driving the spherical part 50 to rotate, and the tire of the drive wheel 36 is preferably a rubber wheel to frictionally fit the surface of the spherical part 50, so that the spherical part 50 rotates along a circumference under the drive of the drive wheel 36.

[0045] A pressure detection unit 37 for detecting the welding scar 51, which is preferably a pressure sensor such as a small columnar pressure sensor. Since the welding scar 51 is a structure protruding from the surface of the spherical part 50, when the spherical part 50 is driven by the drive wheel 36 to pass the position of the pressure detection unit 37, it will press the measuring end of the pressure detection unit 37, thereby causing a change in pressure, so as to realize the detection of the position of the welding scar 51; the reversing assembly is used to control the rotating direction of the drive wheel 36, and thus the rotating direction of the spherical part 50.

[0046] Specifically, when the spherical part 50 is clamped and fixed by the universal ball seat one 25, the drive wheel 36 will closely fit the surface of the spherical part 50. Then, according to the maximum circumferential length of the outer surface of the spherical part 50, the drive wheel 36 will control the spherical part 50 to rotate in one direction for one revolution. Figure 13 It is understood that when the spherical part 50 rotates in this direction, the welding scar 51 will contact the pressure detection unit 37 twice, for example, in Figure 13 In the embodiment, when the spherical part 50 rotates along the horizontal arc path, the horizontal arc has two intersection points with the welding scar 51, i.e. Figure 13The other intersection point is located on the back of the spherical member 50. The positions of the two intersection points on the surface of the spherical member 50 are recorded by the rotation speed of the spherical member 50 and the contact time of the pressure detection unit 37 with the weld 51.

[0047] After the spherical member 50 completes a rotation, the two clamping seats 24 are first controlled to move close to each other to enable the rubber pad 26 to firmly clamp the spherical member 50. In this process, the tire of the driving wheel 36 will be adaptively deformed to adapt to the change in the distance therebetween. At the same time, the pressure change data detected by the pressure detection unit 37 during the movement of the clamping seats 24 will not be counted.

[0048] After the rubber pad 26 clamps the spherical member 50, the driving wheel 36 is controlled to switch the rotation direction by the reversing assembly. After the direction switching is completed, the two clamping seats 24 are controlled to move away from each other to enable the spherical member 50 to be clamped again by the universal ball seat 25. Subsequently, the driving wheel 36 controls the spherical member 50 to rotate in the switched direction for one rotation. In this process, the pressure detection unit 37 and the weld 51 will generate two intersection points again, and the positions of the two new intersection points on the surface of the spherical member 50 are recorded.

[0049] Finally, the positions of the four intersection points are measured to determine the corresponding maximum circumferential direction on the surface of the spherical member 50, i.e., the direction of the weld 51. According to the measured direction of the weld 51, the spherical member 50 is adjusted by the driving wheel 36 to the corresponding angle, so as to accurately adjust the weld 51 to the preset direction.

[0050] It is particularly worth pointing out that the normal 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, and this design can significantly improve the stability of the driving wheel 36 when driving the spherical member 50 to rotate.

[0051] In addition, it needs to be explained that if the weld 51 is in contact with the pressure detection unit 37 in the initial state, and the direction in which the driving wheel 36 drives the spherical member 50 to rotate is consistent with the direction of the weld 51, then the pressure change amplitude detected by the pressure detection unit 37 will be relatively small. In this case, the direction of the weld 51 can be directly determined.

[0052] The cooperation of the above structure is controlled by the controller.

[0053] In combination Figures 4-5 The upper surface of the moving seat 23 is provided with a support bearing 28, the inner ring of the support bearing 28 is fixedly connected with a support sleeve 27, and one clamping seat 24 is fixedly assembled at one end of the support sleeve 27. The clamping seat 24 is rotatably assembled on the moving seat 23 through the support bearing 28, so that the clamping seat 24 can linearly move with the moving seat 23 and also passively rotate with the other clamping seat 24.

[0054] In combination Figures 5-8 , the end of the extension frame 34 is provided with a hoop 341 for assembling the driving wheel 36 to rotate, 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. The driving assembly 35 includes a worm gear 354 arranged in the middle of the rotation shaft of the driving wheel 36, and the upper side of the worm gear 354 is meshed and connected with a worm shaft 353, so that when the worm shaft 353 rotates, the driving wheel 36 can be driven to rotate through the worm gear 354. The worm shaft 353 is coaxially connected with a rotating shaft one 351 on one side, and the rotating shaft one 351 is connected with a rotating shaft two 352 at one end through a transmission structure, preferably a gear transmission structure, and the rotating shaft two 352 extends to the side of the inner shaft core 32 at one end and is fixedly connected with the output end of a servo motor two 355 assembled on the side of the inner shaft core 32. The rotating shaft two 352 is driven to rotate by the servo motor two 355, and the rotating shaft two 352 drives the rotating shaft one 351 to control the rotation of the worm shaft 353, thereby achieving the control of the rotation of the driving wheel 36, and finally achieving the purpose of controlling the rotation of the spherical part 50.

[0055] In combination Figures 7-8 , the pressure detection unit 37 is assembled at the center position inside the clamping seat 24 through the movable frame 372 arranged on one side of the hoop 341, so as to ensure that the measurement end of the pressure detection unit 37 can be in contact with the center position of the side surface of the spherical part 50. The measurement part of the pressure detection unit 37 is fixedly connected with a universal ball seat two 371, and through the arrangement of the universal ball seat two 371, the rolling contact between the pressure detection unit 37 and the surface of the spherical part 50 is realized, thereby improving the stability of the spherical part 50 during rotation.

[0056] In combination Figures 9-11 , the reversing assembly includes an outer shaft sleeve 31 fixedly assembled on the upper side of the moving seat 23, and the inner shaft core 32 is rotatably arranged inside the outer shaft sleeve 31 and coaxially arranged with the clamp 20. The extension frame 34 is fixedly connected on one side of the inner shaft core 32 and sequentially passes through the inner side of the support bearing 28 and the support sleeve 27, and finally extends into the hollow cavity of the clamping seat 24. The body of the servo motor two 355 is fixedly assembled on one side of the inner shaft core 32. In addition, the extension frame 34 and the support bearing 28, the support sleeve 27 are in non-contact connection structure, and the rotating action of the support sleeve 27, the support bearing 28 and the clamping seat 24 connected on one side of the support sleeve 27 and the rotating action of the extension frame 34 and the end structure of the extension frame 34 do not affect each other.

[0057] An arc-shaped groove 311 is formed on the surface of the outer shaft sleeve 31, and a guide rod 321 is fixedly arranged on the surface of the inner shaft core 32. The guide rod 321 moves inside the arc-shaped groove 311, and 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, and during the rotation process, the inner shaft core 32 will produce a retreat action away from the spherical part 50, and will be reset to the initial position when the rotation is completed.

[0058] The outer sleeve 31 is provided with a control assembly 33 for controlling the movement of the inner shaft core 32, and the control assembly 33 includes a spring 331 and a servo cylinder 333 respectively arranged on both sides of the outer sleeve 31. One end of the spring 331 is fixedly connected with one side of the guide rod 321, and the output end of the servo cylinder 333 is fixedly connected with the surface of the other side of the guide rod 321 through a pull rope 334. The pull rope 334 is used to adapt to the height change between the output end of the servo cylinder 333 and the guide rod 321 when the guide rod 321 moves in an arc shape on the surface of the outer sleeve 31.

[0059] Specifically, the servo cylinder 333 pulls the guide rod 321 through the pull rope 334, so that the guide rod 321 moves in one direction in the arc-shaped groove 311 against the elastic force of the spring 331, thereby realizing the control of 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 spring 331 pulls the guide rod 321 to move back in the arc-shaped groove 311, thereby realizing the control of the rotation of the inner shaft core 32 in the opposite direction. Through the above arrangement, when the rotation of the inner shaft core 32 is actively controlled, the extension frame 34 and the driving wheel 36 connected to one end of the extension frame 34 will also rotate, thereby realizing the switching control of the rotation direction of the driving wheel 36.

[0060] Further, by pre-setting the length of the arc-shaped groove 311 and combining the limiting effect of the guide rod 321, the maximum rotation angle of the inner shaft core 32 can be accurately controlled. This not only facilitates the accurate control of the rotation angle of the driving wheel 36 when the driving wheel 36 switches the orientation, but also further improves the accurate position of the two contact points between the pressure detection unit 37 and the weld 51, thereby making the orientation detection of the weld 51 on the surface of the spherical part 50 more accurate.

[0061] For example, assuming that the arc-shaped groove 311 with a preset length cooperates with the guide rod 321 to make the maximum rotation angle of the inner shaft core 32 ninety degrees. In the operation of the device, first, the guide rod 321 is arranged at one end of the arc-shaped groove 311, at this time the driving wheel 36 will drive the spherical part 50 to rotate one round in a fixed direction, and during this period, the pressure detection unit 37 and the weld 51 will generate two contact point positions. Subsequently, by controlling the driving wheel 36 to switch the rotation orientation, only by moving the guide rod 321 from one end to the other end in the arc-shaped groove 311, the rotation switching of the driving wheel 36 by ninety degrees in the original orientation can be accurately controlled. Then, the driving wheel 36 drives the spherical part 50 to rotate one round again in the new orientation, so that the pressure detection unit 37 and the weld 51 generate two new contact point positions. Since the accuracy of the orientation switching of the driving wheel 36 is guaranteed, the accuracy of the two new contact point positions generated subsequently is also improved. Finally, the accuracy of the orientation of the weld 51 on the surface of the spherical part 50 calculated according to the four contact points is also significantly improved.

[0062] In addition, asFigure 11 As shown, the arc of the arc-shaped groove 311 is set as " ( " shape. When the guide rod 321 moves from one end to the middle inside the arc-shaped groove 311, the inner shaft core 32 will move in the outer shaft sleeve 31 inside the direction away from the spherical part 50. Then, when the guide rod 321 moves from the middle to the other end, the inner shaft core 32 will be reset to the initial distance inside the outer shaft sleeve 31.

[0063] When this movement effect is reflected on the drive wheel 36, the drive wheel 36 will not only switch the orientation, but also move away from the spherical part 50. This design makes the drive wheel 36 able to break the contact with the surface of the spherical part 50 in the process of switching the orientation. The purpose of this is to avoid the rotational internal stress on the rubber tire of the drive wheel 36 when the drive wheel 36 switches the orientation on the surface of the spherical part 50. If this internal stress still exists when the rubber pad 26 loosens the clamping of the spherical part 50, the internal stress will cause a certain amount of rotation of the spherical part 50, thereby affecting the measurement accuracy of the two new contact points when the pressure detection unit 37 performs the second detection on the weld 51.

[0064] In combination with Figures 9-11 As shown, the outer shaft sleeve 31 is provided with a mounting frame one 332 and a mounting frame two 335 on both sides for assembling the spring two 331 and the servo cylinder 333, wherein the upper side of the mounting frame one 332 and the mounting frame two 335 are both rotating structures, which are free-rotating mounting seats, and the spring two 331 and the servo cylinder 333 are respectively assembled on the corresponding mounting seats. Through the rotating structure, the spring two 331 and the servo cylinder 333 can automatically adapt to the change of the direction of the pulling force.

[0065] Specifically, when the guide rod 321 moves inside the arc-shaped groove 311, the included angle between the guide rod 321 and the mounting frame one 332 and the mounting frame two 335 will change constantly. Therefore, the direction of the pulling force generated between the spring two 331, the servo cylinder 333 and the guide rod 321 will also change. By setting the rotating structure, the direction of the pulling force of the spring two 331 and the servo cylinder 333 can automatically adapt to this change and always point to the direction of the guide rod 321. In this way, not only the pulling effect of the spring two 331 and the servo cylinder 333 on the guide rod 321 is improved, but also the structure arrangement for the guide rod 321 is more reasonable.

[0066] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

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); An 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 a movable seat (23) of a 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 fixture (20). The end of the extension frame (34) is equipped with: a driving wheel (36) for driving the spherical member (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 member (50). 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); 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, 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); The reversing assembly includes an outer shaft sleeve (31) fixedly mounted 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 fixture (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 mounted on one side of the inner shaft core (32); 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.

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 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).

5. The welding spherical component polishing device according to claim 1, 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).

6. The welding spherical component polishing device according to claim 5, 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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