Snap ring processing device

Abstract

The invention discloses a clamping ring machining device which comprises a base used for supporting the whole device. The turntable is rotationally arranged on the base; the first polishing mechanism is used for polishing the end face of the snap ring; the second polishing mechanism is used for polishing the inner wall of the snap ring; the third polishing mechanism is used for polishing the outer wall of the clamping ring; the four clamping mechanisms are used for fixing the clamping rings and are uniformly arranged on the turntable; each clamping mechanism comprises a machining groove formed in the rotary disc, a positioning column arranged in the machining groove, clamping rods symmetrically arranged in the machining groove, a first driving piece for driving the clamping rods to rotate, a clamping rod driving assembly for driving the clamping rods to move, a mounting plate, a sliding rod arranged on the mounting plate, a first elastic piece arranged on the sliding rod in a sleeving mode, and a clamping block arranged on the sliding rod. The positioning column driving assembly is used for driving the positioning column to move up and down; the second driving piece is used for driving the mounting plate to move horizontally; and the clamping block can be just clamped into the opening of the clamping ring.

Description

Technical Field

[0001] The present invention belongs to the technical field of snap ring processing, and in particular relates to a snap ring processing device. Background Art

[0002] A snap ring is installed on a grooved shaft and is used to fix the axial movement of components. The inner diameter of this type of snap ring is slightly smaller than the assembled shaft diameter. When installing, a snap ring pliers must be used to insert the pliers' jaws into the pliers hole of the retaining ring and expand the snap ring before it can be placed on the pre-processed shaft groove. Snap rings are classified by use as: shaft elastic snap rings, single-hole shaft snap rings, double-hole shaft snap rings, and reverse shaft elastic snap rings.

[0003] Patent CN202320714787.2 discloses a polishing device for snap ring production, including a polishing processing chamber, a lifting transmission table at the bottom inside the polishing processing chamber, polishing discs arranged on both sides above the lifting transmission table, and a motor main body for driving the polishing discs to rotate. It is characterized in that: a pressing conveyor belt parallel to the lifting transmission table is arranged on the upper part of the polishing disc, and the relative distance between the pressing conveyor belt and the lifting transmission table can be adjusted by the rotation of the lead screw, and a spacing adjustment mechanism is arranged on the back of the motor main body.

[0004] In the above patent, the snap ring is clamped by the lifting transmission table and the pressing conveyor belt. Since the snap ring has an opening, when the snap ring is fixed by the above clamping method, the snap ring is easily deformed, affecting the clamping and polishing effects. Summary of the Invention

[0005] This part of the content of the present application is used to briefly introduce concepts, which will be described in detail in the subsequent detailed implementation part. This part of the content of the present application is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0006] To solve the technical problems mentioned in the above background art part, some embodiments of the present application provide a snap ring processing device, including:

[0007] A base for supporting the entire device;

[0008] A turntable rotatably arranged on the base;

[0009] A first grinding mechanism for grinding the end face of the snap ring;

[0010] A second grinding mechanism for grinding the inner wall of the snap ring;

[0011] A third grinding mechanism for grinding the outer wall of the snap ring;

[0012] Four clamping mechanisms for fixing the snap ring, which are evenly arranged on the turntable;

[0013] The clamping mechanism includes a processing groove provided on the turntable, positioning columns provided in the processing groove, clamping rods symmetrically provided in the processing groove, a first driving member for driving the clamping rods to rotate, a clamping rod driving assembly for driving the clamping rods to move, a mounting plate, sliding rods provided on the mounting plate, a first elastic member sleeved on the sliding rods, a clamping block provided on the sliding rods, a positioning column driving assembly for driving the positioning columns to move up and down, and a second driving member for driving the mounting plate to move horizontally. The clamping block can just be inserted into the opening of the clamping ring.

[0014] Preferably, the clamping rod driving assembly includes a fixed seat cooperating with the first driving member, a connecting rod provided on the fixed seat, a second elastic member provided on the connecting rod, a fixing plate, a sleeve provided on the fixing plate, and a third driving member for driving the sleeve to move horizontally. The connecting rod can slide relative to the inner wall of the sleeve.

[0015] Preferably, a plurality of anti-slip protrusions are evenly provided on the clamping rods.

[0016] Preferably, pressure sensors are provided on both sides of the clamping block, and the pressure sensors are communicatively connected to the controller of the first driving member.

[0017] Preferably, the first grinding mechanism includes a polishing plate, a fourth driving member for driving the polishing plate to rotate, a first robotic arm for controlling the up-and-down movement and horizontal movement of the polishing plate, and a material turning assembly.

[0018] Preferably, the material turning assembly includes a fixed ring, a rotating shaft provided on the fixed ring, a fifth driving member for driving the rotating shaft to rotate, a clamping ring provided on the fixed ring, a connecting frame provided on the fixed ring, and a sixth driving member for driving the connecting frame to move up and down. An electromagnet is provided on the bottom surface of the clamping ring.

[0019] Preferably, the second grinding mechanism includes a grinding frame, a pressing rod provided on the grinding frame, a first ball provided at the end of the pressing rod, a grinding rod provided on the grinding frame, and a second robotic arm. The second robotic arm can drive the grinding rod to move up and down and move along the inner wall of the clamping ring.

[0020] Preferably, the positioning column driving assembly includes a top column provided at the bottom end of the positioning column and a seventh driving member for driving the top column to move up and down. The diameter of the top column is larger than the diameter of the positioning column.

[0021] Preferably, the positioning column is provided with an adjusting assembly. The adjusting assembly includes a mounting cavity provided in the positioning column, support rods evenly provided on the positioning column, a top plate provided on the support rods, and a control component for controlling the movement of the support rods.

[0022] Preferably, the control component includes a limiting plate provided on the support rod, a third elastic member sleeved on the support rod, a second ball provided at the end of the support rod, a screw rod provided on the positioning column, and a control block provided on the screw rod. The control block is provided with an arc-shaped curved surface, and the control block is correspondingly arranged with the support rod. One end of the third elastic member is fixedly connected to the limiting plate, and the other end is fixedly connected to the inner wall of the mounting cavity.

[0023] This application provides a clamping ring processing device with stable clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings constituting a part of this application are used to provide a further understanding of this application, making other features, objectives, and advantages of this application more obvious. The schematic embodiments and descriptions of the drawings of this application are used to explain this application and do not constitute an improper limitation of this application.

[0025] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic, and the elements and components are not necessarily drawn to scale.

[0026] In the drawings:

[0027] Figure 1 is a schematic structural diagram of the first embodiment of the present invention.

[0028] Figure 2 is a top view of the first embodiment of the present invention.

[0029] Figure 3 is a schematic structural cooperation diagram of the clamping mechanism of the first embodiment of the present invention.

[0030] Figure 4 is a schematic structural diagram of the material turning assembly of the first embodiment of the present invention.

[0031] Figure 5 is a partial schematic structural diagram of the second grinding mechanism of the first embodiment of the present invention.

[0032] Figure 6 is a schematic structural diagram of the adjustment assembly of the second embodiment of the present invention.

[0033] Figure 7 is Figure 6 a cross-sectional view of

[0034] Figure 8 is a schematic structural diagram of the control block of the second embodiment of the present invention.

[0035] Reference numerals: 1, base; 2, turntable; 3, first grinding mechanism; 4, second grinding mechanism; 5, third grinding mechanism; 61, processing groove; 62, positioning post; 63, clamping rod; 64, first driving member; 65, mounting plate; 66, sliding rod; 67, first elastic member; 68, clamping block; 69, second driving member; 621, ejector post; 622, seventh driving member; 631, fixed seat; 632, connecting rod; 633, second elastic member; 634, fixing plate; 635, sleeve; 636, third driving member; 637, anti-slip protrusion; 31, polishing plate; 32, fourth driving member; 33, first robotic arm; 34, fixing ring; 35, rotating shaft; 36, fifth driving member; 37, clamping ring; 38, connecting frame; 39, sixth driving member; 41, grinding frame; 42, pressing rod; 43, first ball; 44, grinding rod; 45, second robotic arm; 71, mounting cavity; 72, support rod; 73, top plate; 74, limiting plate; 75, third elastic member; 76, second ball; 77, screw rod; 78, control block; 781, arc curved surface. Detailed implementation manners

[0036] Embodiments of the present disclosure will be described in more detail below with reference to the drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not used to limit the protection scope of the present disclosure.

[0037] In addition, it should be noted that only parts related to the relevant invention are shown in the drawings for the convenience of description. Without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other.

[0038] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependent relationships.

[0039] It should be noted that the modifications of "one" and "multiple" mentioned in the present disclosure are illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0040] The present disclosure will be described in detail below with reference to the drawings and in combination with embodiments.

[0041] First embodiment:

[0042] As Figures 1-7As shown in the figure, a snap ring processing device includes: a base 1, a turntable 2, a first grinding mechanism 3, a second grinding mechanism 4, a third grinding mechanism 5 and a clamping mechanism. The turntable 2 is connected to the base 1 through a shaft and can be driven to rotate by a motor and gears. The first grinding mechanism 3, the second grinding mechanism 4 and the third grinding mechanism 5 are arranged around the turntable 2 in sequence. Among them, the first grinding mechanism 3 is used to grind the end face of the snap ring, the second grinding mechanism 4 is used to grind the inner wall of the snap ring, and the third grinding mechanism 5 is used to grind the outer wall of the snap ring. There are four clamping mechanisms in total, which are evenly arranged around the turntable 2. Then, for one processing procedure, by rotating the turntable 2, it can be moved to the next grinding procedure to achieve continuous processing.

[0043] Specifically, each clamping mechanism includes a processing groove 61, a positioning post 62, a clamping rod 63, a first driving member 64, a driving assembly for the clamping rod 63, a mounting plate 65, a sliding rod 66, a first elastic member 67, a clamping block 68, a driving assembly for the positioning post 62 and a second driving member 69. The processing groove 61 is formed in the turntable 2; the positioning post 62 is arranged in the processing groove 61 and can be sleeved with a snap ring. The processing groove 61 is provided with a circular hole for the up-and-down movement of the positioning post 62; the clamping rods 63 are symmetrically arranged in the processing groove 61, and the bottom of the processing groove 61 is provided with a chute for the clamping rod to move; the first driving member 64 is a servo motor, and its output shaft is connected to the clamping rod 63; the second driving member 69 is an electric push rod, which is arranged on the side wall of the processing groove 61; the mounting plate 65 is fixed on the output end of the second driving member 69; the sliding rod 66 is inserted through the mounting plate 65 and can slide relative to the mounting plate 65; the first elastic member 67 is a spring, which is sleeved on the sliding rod 66, and one end of it is fixed on the mounting plate 65 and the other end is fixed on the clamping block 68; the clamping block 68 is fixed on the end of the sliding rod 66, and the clamping block 68 can just be inserted into the opening of the snap ring to prevent the snap ring from deforming when clamping the snap ring; the driving assembly for the positioning post 62 includes a top post 621 and a seventh driving member 622. The top post 621 is fixed on the bottom end of the positioning post 62. The diameter of the top post 621 is larger than that of the positioning post 62 and smaller than the outer diameter of the snap ring; the seventh driving member 622 is an electric push rod. When processing the snap ring, first place the snap ring on the bottom of the processing groove 61 through a manipulator and sleeve it on the positioning post 62, then rotate the chuck by 90 degrees, and the snap ring will move to the first grinding mechanism 3. Then, move the clamping rod 63 through the driving assembly of the clamping rod 63 so that the end of the clamping rod 63 contacts the outer wall of the snap ring, and start the second driving member 69 to push the clamping block 68 to contact the outer wall of the snap ring. Then start the first driving member 64 to drive the clamping rod 63 to rotate, thereby driving the snap ring to rotate relative to the positioning post 62. When the opening of the snap ring is aligned with the clamping block 68, turn off the first driving member 64, and the first elastic member 67 will push the clamping block 68 into the opening. Then, push the clamping rod 63 to move again through the driving assembly of the clamping rod 63 to clamp the snap ring. Then, grind the end face of the snap ring through the first grinding mechanism 3; after the end face of the snap ring is ground, rotate the turntable 2 by 90 degrees, lower the positioning post 62 through the seventh driving member 622 so that the positioning post 62 is disengaged from the inner wall of the snap ring, and then grind the inner wall of the snap ring through the second grinding mechanism 4. After grinding, rotate the turntable 2 by 90 degrees again, extend the positioning post 62 into a part of the snap ring through the seventh driving member 622, then reset the clamping rod 63 and the clamping block 68, then raise the positioning post 62 again, and the top post 621 will push the snap ring up, and then grind the outer wall of the snap ring through the third grinding mechanism 5. After grinding, take out the snap ring; the rotation of the turntable 2 conveys the snap ring to the three grinding mechanisms for grinding the end face, inner wall and outer wall. The positioning post 62 in the clamping mechanism is used for the initial positioning of the snap ring. The clamping rod 63 rotates and moves through the driving member, and cooperates with the clamping block 68 inserted into the opening of the snap ring to realize multi-point clamping.The design of the elastic member and the sliding rod 66 ensures that the clamping block 68 adapts to the opening position of the snap ring. The positioning post 62 drives the assembly to adjust the height to adapt to different processing stages, and multi-station continuous processing improves efficiency. The multi-point fixation of the clamping mechanism avoids the deformation of the snap ring and improves the processing accuracy. The adaptive design of the elastic member and the sliding rod 66 reduces the need for manual adjustment.

[0044] Specifically, the driving assembly of the clamping rod 63 includes a fixed seat 631, a connecting rod 632, a second elastic member 633, a fixing plate 634, a sleeve 635 and a third driving member 636. The fixed seat 631 is fixed on the outer wall of the first driving member 64; the connecting rod 632 is fixed on the fixed seat 631; the second elastic member 633 is a spring, one end of which is fixed on the connecting rod 632 and the other end is fixed in the sleeve 635; the sleeve 635 is fixed on the fixing plate 634, and the connecting rod 632 can slide relative to the inner wall of the sleeve 635; the third driving member 636 is an electric push rod, and its output end is fixed on the fixing plate 634. Elastic buffering avoids the deformation of the snap ring caused by excessive clamping force.

[0045] As a preferred solution, a plurality of anti-slip protrusions 637 are evenly arranged on the clamping rod 63, which is convenient for driving the snap ring to rotate and can also prevent the snap ring from sliding during the processing. Pressure sensors are arranged on both sides of the clamping block 68, and the pressure sensors are communicatively connected to the controller of the first driving member 64. After the clamping block 68 is inserted into the opening of the snap ring, the pressure sensors will send a signal to the controller of the first driving member 64 to turn off the first driving member 64.

[0046] Specifically, the first grinding mechanism 3 includes a polishing plate 31, a fourth driving member 32, a first robotic arm 33 for controlling the vertical and horizontal movement of the polishing plate 31, and a material turning assembly. The fourth driving member 32 is a servo motor, which is fixed on the first robotic arm 33. The first robotic arm 33 can drive the fourth driving member 32 to move vertically and horizontally. The polishing plate 31 is connected to the output shaft of the fourth driving member 32 through a shaft. The material turning assembly includes a fixed ring 34, a rotating shaft 35, a fifth driving member 36, a clamping ring 37, a connecting frame 38, and a sixth driving member 39. The sixth driving member 39 is an electric push rod. The connecting frame 38 is fixed on the output end of the sixth driving member 39. The fixed ring 34 is fixed on the connecting frame 38. The rotating shaft 35 is rotatably connected to the fixed ring 34. The fifth driving member 36 is a servo motor, and its output shaft is connected to the rotating shaft 35. The clamping ring 37 is fixed on the end of the rotating shaft 35, and an electromagnet is fixed on its bottom surface. Then, the polishing plate 31 can be brought into contact with the end face of the snap ring through the first robotic arm 33. Then, the fourth driving member 32 drives the polishing plate 31 to rotate to grind the end of the snap ring. After grinding, the polishing plate 31 is removed from the processing groove 61 by the first robotic arm 33, and the polishing plate 31 is moved away from above the processing groove 61. Then, the clamping plate is lowered, so that the electromagnet on the bottom surface of the clamping ring 37 contacts the snap ring. The electromagnet is activated, and the clamping block 68 and the clamping rod 63 are reset. Then, the clamping ring 37 is lifted, and then the snap ring is rotated 180 degrees by the fifth driving member 36. The clamping ring 37 is lowered, and the snap ring is placed into the processing groove 61. Then, the snap ring is fixed by the clamping block 68 and the clamping rod 63. Then, the end face of the snap ring can be polished. The double-sided grinding is completed integrally, reducing the process switching time.

[0047] Specifically, the second grinding mechanism 4 includes a grinding frame 41, a pressing rod 42, a first ball 43, a grinding rod 44, and a second robotic arm 45. The grinding frame 41 is connected to the second robotic arm 45. The pressing rod 42 is fixed on the grinding frame 41. The first ball 43 is rotatably connected to the end of the pressing rod 42. The grinding rod 44 is rotatably connected to the grinding frame 41. A motor for driving the grinding rod 44 to rotate is provided inside the grinding frame 41. The second robotic arm 45 can drive the grinding rod 44 to move vertically and along the inner wall of the snap ring. When the snap ring moves to the second grinding mechanism 4, the positioning post 62 is lowered through the seventh driving member 622, so that the positioning post 62 is disengaged from the inner wall of the snap ring. Then, the grinding frame 41 is lowered, so that the first ball 43 presses on the top of the snap ring, and the grinding rod 44 contacts the inner wall of the snap ring. Then, the grinding rod 44 is rotated to grind the inner wall of the snap ring, and the second robotic arm 45 drives the grinding rod 44 to move along the inner wall of the snap ring. The third grinding mechanism 5 is the same as the second grinding mechanism 4, and the specific structure will not be described in detail.

[0048] Second Embodiment:

[0049] As Figure 8As shown, the difference between this embodiment and the first embodiment is that the positioning post 62 is provided with an adjusting component. The adjusting component includes an installation cavity 71, a support rod 72, a top plate 73 and a control component. The installation cavity 71 is opened in the top post 621; the support rods 72 are evenly arranged around the positioning post 62, one end of which extends into the installation cavity 71 and can slide relative to the positioning post 62; the top plate 73 is fixed to the end of the support rod 72; the control component includes a limit plate 74, a third elastic member 75, a second ball 76, a screw rod 77 and a control block 78. The limit plate 74 is fixed to the support rod 72; the screw rod 77 is screwed on the positioning post 62; the control blocks 78 are evenly fixed on the screw rod 77. The control block 78 is provided with an arc-shaped curved surface 781 and is arranged corresponding to the support rod 72; the second ball 76 is rotatably connected to the end of the control rod; the third elastic member 75 is a spring, which is sleeved on the support rod 72, and one end of the third elastic member 75 is fixedly connected to the limit plate 74 and the other end is fixedly connected to the inner wall of the installation cavity 71. By rotating the screw rod 77, the support rod 72 can be pushed to move, so as to adjust the distance between the top plate 73 and the positioning post 62, facilitating the adaptation to snap rings of different sizes.

[0050] The above description is only some preferred embodiments of the present disclosure and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above inventive concept. For example, the technical solutions formed by mutually replacing the above features with the (but not limited to) technical features with similar functions disclosed in the embodiments of the present disclosure.

Claims

1. A snap ring processing device, comprising: A base, used to support the entire device; A turntable, rotatably disposed on the base; A first grinding mechanism, used for grinding the end face of the retaining ring; The second grinding mechanism is used for grinding the inner wall of the clamping ring; A third grinding mechanism, used for grinding the outer wall of the clamping ring; Four clamping mechanisms, used to fix the snap rings, are evenly arranged on the turntable; It is characterized in that the clamping mechanism includes a processing groove arranged on the turntable, a positioning column arranged in the processing groove, a clamping rod symmetrically arranged in the processing groove, a first driving member for driving the clamping rod to rotate, a clamping rod driving assembly for driving the clamping rod to move, a mounting plate, a sliding rod arranged on the mounting plate, a first elastic member sleeved on the sliding rod, a clamping block arranged on the sliding rod, a positioning column driving assembly for driving the positioning column to move up and down, and a second driving member for driving the mounting plate to move horizontally, and the clamping block can be just clamped into the opening of the clamping ring.

2. The snap ring processing device according to claim 1, characterized in that: The clamping rod driving assembly includes a fixed seat cooperating with a first driving member, a connecting rod arranged on the fixed seat, a second elastic member arranged on the connecting rod, a fixed plate, a sleeve arranged on the fixed plate and a third driving member driving the sleeve to move horizontally, and the connecting rod can slide relative to the inner wall of the sleeve.

3. The snap ring processing device according to claim 1, characterized in that: A plurality of anti-slip protrusions are evenly arranged on the clamping rod.

4. The snap ring processing device according to claim 2, characterized in that: Pressure sensors are provided on both sides of the clamping block, and the pressure sensors are communicatively connected with the controller of the first driving member.

5. The snap ring processing device according to claim 1, characterized in that: The first grinding mechanism includes a polishing plate, a fourth driving member for driving the polishing plate to rotate, a first mechanical arm for controlling the up-and-down and horizontal movement of the polishing plate, and a material turning assembly.

6. The snap ring processing device according to claim 5, characterized in that: The material turning assembly includes a fixed ring, a rotating shaft arranged on the fixed ring, a fifth driving member for driving the rotating shaft to rotate, a clamping ring arranged on the fixed ring, a connecting frame arranged on the fixed ring and a sixth driving member for driving the connecting frame to move up and down, and an electromagnet is arranged on the bottom surface of the clamping ring.

7. The snap ring processing device according to claim 1, characterized in that: The second grinding mechanism includes a grinding frame, a pressure rod arranged on the grinding frame, a first ball arranged on the end of the pressure rod, a grinding rod arranged on the grinding frame and a second mechanical arm, and the second mechanical arm can drive the grinding rod to move up and down and along the inner wall of the clamping ring.

8. The snap ring processing device according to claim 1, characterized in that: The positioning column driving assembly includes a top column arranged on the bottom end of the positioning column and a seventh driving member driving the top column to move up and down. The diameter of the top column is larger than the diameter of the positioning column.

9. The snap ring processing device according to claim 1, characterized in that: The positioning column is provided with an adjustment component, which includes a mounting cavity arranged in the positioning column, support rods evenly arranged on the positioning column, a top plate arranged on the support rods, and a control component for controlling the movement of the support rods.

10. The snap ring processing device according to claim 9, characterized in that: The control component includes a limit plate arranged on the support rod, a third elastic member sleeved on the support rod, a second ball arranged on the end of the support rod, a screw arranged on the positioning column and a control block arranged on the screw, the control block is provided with an arc-shaped curved surface, and the control block is arranged corresponding to the support rod, one end of the third elastic member is fixedly connected to the limit plate, and the other end is fixedly connected to the inner wall of the installation cavity.

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