Vertical grinding device for brake surface of motor clutch with plane part

Abstract

The utility model relates to the technical field of machining of motor clutches, in particular to a vertical grinding device for a brake surface of a motor clutch with a plane part. The utility model discloses a motor clutch brake surface vertical type grinding device with a plane part, which comprises a rack, an electric push rod, a lifting platform connected to the power end of the electric push rod and a base located under the lifting platform are sequentially arranged on the rack along the vertical direction, and a grinding piece used for grinding is arranged on the base. A connecting disc with the diameter larger than that of the power end of the electric push rod is arranged at the power end of the electric push rod, a connecting groove with an inverted-T-shaped axial section is formed in the upper side of the lifting table, and a containing groove used for containing a motor clutch is formed in the lifting table. Thrust mechanisms used for applying continuous thrust to the lifting table during grinding are symmetrically arranged between the rack and the lifting table. The utility model has the advantages that the absolute perpendicularity between the brake surface and the axis can be ensured so as to ensure the processing precision and the surface quality.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor clutch processing technical field, concretely is a kind of motor clutch brake face vertical polishing device with plane part. BACKGROUND

[0002] Clutch is widely applied in mechanical transmission system, in order to ensure the friction effect between the friction surface between clutch brake disc and brake pad, brake disc needs to be polished, so that the brake surface of brake disc and brake pad keep parallel, and in prior art, usually adopt horizontal polishing device to polish, such as the Chinese patent application No.

[0003] In the above technical scheme, by being sleeved on spline shaft, clutch driving plate is placed in horizontal polishing mode, so that clutch driving plate and polishing wheel can be rotated asynchronously during polishing, thereby polishing clutch driving plate, however, in the above technical scheme, horizontal processing mode is adopted, so that the axis of spline shaft and clutch driving plate is placed horizontally, compared with the mode that the axis of the two is placed vertically, the concentration of grinding force is poor, so that the absolute perpendicularity between brake surface of clutch driving plate and axis cannot be ensured, and processing precision and surface quality cannot be guaranteed. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of motor clutch brake face vertical polishing device with plane part, which can ensure the absolute perpendicularity between brake surface and axis to guarantee processing precision and surface quality.

[0005] To achieve the above object, the utility model discloses a motor clutch vertical polishing device, comprising a rack, the rack is sequentially provided with an electric push rod, a lifting table connected to the power end of the electric push rod and a base located directly below the lifting table in vertical direction, the base is provided with a grinding part for grinding, the power end of the electric push rod is provided with a connecting disc with a diameter larger than the power end of the electric push rod, the lifting table upper side is provided with a connecting groove with inverted T-shaped axial section, the groove opening and inner cavity of the connecting groove are respectively adapted to the power end of the electric push rod and the connecting disc, the depth of the inner cavity of the connecting groove along the thrust direction of the electric push rod is greater than the thickness of the connecting disc, the lifting table is provided with a placing groove for placing motor clutch, the rack and the lifting table are symmetrically provided with a thrust mechanism for applying continuous thrust to the lifting table during polishing.

[0006] When the motor clutch needs to be ground, the electric push rod is activated. The electric push rod drives the lifting platform to descend through the connecting plate and presses down and clamps the motor clutch placed in the placement slot, so that the lower surface of the motor clutch abuts against the grinding part located on the base. The power motor inside the motor clutch is activated, and the power motor drives the clutch to rotate, so that the lower surface of the clutch rubs against the grinding part, thereby grinding the clutch. After the clutch has been worn down, the thrust mechanism lowers the lifting platform and drives the clutch to compensate for the wear until the thrust of the thrust mechanism is balanced, that is, the absolute perpendicularity between the brake surface and the axis is achieved.

[0007] This invention achieves vertical grinding by placing the motor clutch and the axis of the grinding workpiece vertically. The height of the lifting platform is automatically adjusted by the thrust mechanism after the motor clutch generates grinding wear, which compensates for the wear of the motor clutch until the thrust of the thrust mechanism is balanced, thereby concentrating the grinding force and ensuring the absolute perpendicularity between the clutch brake surface and the axis. This invention has the advantage of ensuring the absolute perpendicularity between the brake surface and the axis to guarantee processing accuracy and surface quality.

[0008] The groove of the connecting slot includes an axial opening facing the direction of the electric push rod's thrust and a lateral opening for assembling the electric push rod's power end and the connecting plate into the lifting platform laterally.

[0009] Preferably, the placement groove is located in the direction away from the electric push rod of the connecting groove, and the placement groove includes a small diameter section and a large diameter section from top to bottom. A shoulder structure is formed at the connection between the small diameter section and the large diameter section, and the shoulder structure is used to abut against the housing of the motor clutch.

[0010] By pressing down on the housing of the motor clutch using a shoulder structure, compared to abutting the top of the slot against the axial tail of the motor clutch, it is possible to avoid abutting the electrical connections at the axial tail of the motor clutch, thus preventing pressure damage to the electrical connections.

[0011] Preferably, the placement slot includes an axial opening facing the direction of the electric actuator's thrust and a lateral opening for engaging the motor clutch for lateral entry.

[0012] By setting axial and lateral openings, it is easy to assemble the motor clutch in the placement slot and to allow staff to visually observe the working status of the motor clutch.

[0013] Preferably, the cross-sectional shape of the shoulder structure is U-shaped, and the curvature of the shoulder structure is adapted to the circumferential surface of the motor clutch.

[0014] By setting the cross-section of the shoulder structure to a U-shape and adapting it to the circumferential surface of the motor clutch, it is possible to prevent the motor clutch from tilting during machining and ensure uniform pressure on the motor clutch, thereby guaranteeing the machining accuracy of the motor clutch.

[0015] Preferably, the thrust mechanism includes a guide rod disposed on the frame, the guide rod being symmetrically disposed on both sides of the electric push rod along the width direction of the frame, one end of the guide rod being connected to the upper end of the lifting platform, the other end of the guide rod passing through the frame and having an anti-detachment component, and an elastic component being disposed between the frame and the lifting platform.

[0016] The movement trajectory of the lifting platform is limited by two symmetrically arranged guide rods to prevent the lifting platform from deviating and causing the motor clutch to tilt. After the elastic force of the elastic element causes the clutch to wear, the lifting platform descends and drives the clutch to press down to compensate for the wear. When the thrust of the elastic elements on both sides is balanced, that is, the brake surface is absolutely perpendicular to the axis.

[0017] Preferably, the base is provided with a correction column coaxially arranged with the motor clutch, and the grinding part is sleeved on the circumferential side of the correction column and in contact with the grinding surface of the motor clutch, thereby ensuring that the motor clutch is coaxial with the grinding part during grinding.

[0018] Preferably, a square steel profile is horizontally arranged on the lower side of the base, and the base is assembled with the square steel profile by fixing screws, which facilitates the adjustment of the installation position of the base and further ensures that the motor clutch is coaxial with the workpiece being ground during grinding.

[0019] This invention achieves vertical grinding by placing the motor clutch and the axis of the grinding workpiece vertically. The height of the lifting platform is automatically adjusted by the thrust mechanism after the motor clutch generates grinding wear, ensuring the absolute perpendicularity between the clutch brake surface and the axis. This invention has the advantage of ensuring the absolute perpendicularity between the brake surface and the axis to guarantee machining accuracy and surface quality. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of one structure of the present utility model.

[0021] Figure 2 This is a schematic diagram of the exploded structure of this utility model.

[0022] In the diagram: 11. Frame; 12. Electric push rod; 13. Lifting platform; 14. Motor clutch housing; 141. Flat part; 15. Base; 16. Fixing screw; 17. Guide rod; 18. Anti-detachment component; 19. Thrust spring; 20. Connecting plate; 21. Connecting groove; 211. Inner cavity; 212. Groove opening; 22. Placement groove; 221. Small diameter section; 222. Large diameter section; 223. Shoulder structure; 23. Correction column; 24. Annular sand disc; 25. Square steel profile. Detailed Implementation

[0023] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0024] Depend on Figure 1 As shown, this embodiment discloses a vertical grinding device for a motor clutch brake surface with a flat portion, including a frame 11. An electric push rod 12, a lifting platform 13 connected to the power end of the electric push rod 12, and a base 15 located directly below the lifting platform 13 are arranged sequentially along the vertical direction on the frame 11. The base 15 is provided with a grinding element for grinding, which is an annular sand disc 24. The power end of the electric push rod 12 is provided with a connecting plate 20 with a diameter larger than that of the power end of the electric push rod 12. A connecting groove 21 with an inverted T-shaped axial cross-section is opened on the upper side of the lifting platform 13. The groove opening 212 and the inner cavity 211 of the connecting groove 21 are respectively adapted to the power end of the electric push rod 12 and the connecting plate 20. The depth of the inner cavity 211 of the connecting groove 21 along the thrust direction of the electric push rod 12 is greater than the thickness of the connecting plate 20.

[0025] The lower side of the lifting platform 13 is provided with a placement groove 22 for placing the motor clutch. The placement groove 22 is located in the direction away from the electric push rod 12 of the connecting groove 21. The placement groove 22 includes an axial opening facing the direction of the electric push rod 12 and a lateral opening for the motor clutch to enter laterally. The placement groove 22 includes a small diameter section 221 and a large diameter section 222 from top to bottom. A shoulder structure 223 is formed at the connection between the small diameter section 221 and the large diameter section 222. The shoulder structure 223 is used to abut against the housing of the motor clutch. The cross-sectional shape of the shoulder structure 223 is U-shaped, and the curvature of the shoulder structure 223 is adapted to the circumferential surface of the motor clutch.

[0026] A thrust mechanism is symmetrically provided between the frame 11 and the lifting platform 13 for applying a continuous thrust to the lifting platform 13 during grinding. The thrust mechanism includes a guide rod 17 on the frame 11. The guide rod 17 is symmetrically provided on both sides of the electric push rod 12 along the width direction of the frame 11. One end of the guide rod 17 is connected to the upper end of the lifting platform 13, and the other end of the guide rod 17 passes through the frame 11 and is provided with an anti-detachment component 18. An elastic component is provided between the frame 11 and the lifting platform 13. The elastic component is a thrust spring 19 wrapped around the outer circular surface of the guide rod 17.

[0027] When grinding is required, the electric push rod 12 is activated. The connecting plate 20 at the power end of the electric push rod 12 abuts against the bottom of the connecting groove 21, thereby pushing the lifting platform 13 down and causing the motor clutch to abut against the annular sand disc 24 on the base 15. After the motor clutch has been ground, the thrust of the thrust spring 19 causes the lifting platform 13 to continue to descend, thereby ensuring the continuous feed of the motor clutch. Since the brake surface of the motor clutch is not perpendicular to the axis in the initial state, the pressure on the brake surface of the motor clutch is adaptively adjusted. In the tilted state, the pressure on the brake surface of the motor clutch on the lower side is greater. Therefore, the grinding rate of the brake surface here is higher. When the thrust of the thrust springs 19 on both sides is equal, that is, the brake surface of the motor clutch is absolutely perpendicular to the axis.

[0028] The base 15 is provided with a correction column 23 coaxially arranged with the motor clutch, and an annular sand disc 24 is sleeved on the circumferential side of the correction column 23 and in contact with the grinding surface of the motor clutch.

[0029] A square steel profile 25 is horizontally arranged on the lower side of the base 15, and the base 15 is assembled with the square steel profile 25 by fixing screws 16.

[0030] Depend on Figure 2 As shown, a motor clutch with a planar portion includes a motor clutch housing 14, which fits into the small diameter section 221 and the large diameter section 222 of the placement groove 22. Two planar portions 141 are symmetrically provided on the circumferential surface of the motor clutch housing 14, and the distance between the two planar portions 141 matches the distance between the groove walls of the placement groove 22.

[0031] When the motor clutch is placed in the placement slot 22, the power motor inside the motor clutch drives the clutch to rotate, causing the lower surface of the clutch to rub against the annular sand disc 24. At this time, since the groove walls on both sides of the motor clutch in the placement slot 22 abut against the flat part 141, the friction between the annular sand disc 24 and the lower surface of the clutch cannot act on the motor clutch housing 14, thereby preventing the motor clutch from rotating on its own.

[0032] After the motor clutch is placed in the placement slot 22, the electric push rod 12 is activated, which in turn pushes the lifting platform 13 down until the motor clutch comes into contact with the annular sand disc 24 on the base 15. The power motor inside the motor clutch is then activated, and the power motor drives the clutch to rotate, causing the lower surface of the clutch to rub against the annular sand disc 24, thereby achieving the grinding of the clutch brake surface.

Claims

1. A vertical grinding device for a motor clutch brake surface with a flat portion, comprising a frame, wherein an electric push rod, a lifting platform connected to the power end of the electric push rod, and a base located directly below the lifting platform are arranged sequentially along the vertical direction on the frame, and a grinding workpiece for grinding is provided on the base, characterized in that: The electric push rod power end is provided with a connecting plate with a diameter larger than that of the electric push rod power end. The upper side of the lifting platform is provided with a connecting groove with an inverted T-shaped axial cross section. The groove opening and the inner cavity of the connecting groove are respectively used to adapt to the electric push rod power end and the connecting plate. The depth of the inner cavity of the connecting groove along the thrust direction of the electric push rod is greater than the thickness of the connecting plate. The lifting platform is provided with a placement groove for placing the motor clutch. A thrust mechanism for applying continuous thrust to the lifting platform during grinding is symmetrically provided between the frame and the lifting platform.

2. The vertical grinding device for the motor clutch brake surface with a flat portion according to claim 1, characterized in that: The placement groove is located in the direction away from the electric push rod of the connecting groove. The placement groove includes a small diameter section and a large diameter section from top to bottom. A shoulder structure is formed at the connection between the small diameter section and the large diameter section. The shoulder structure is used to abut against the housing of the motor clutch.

3. The vertical grinding device for the motor clutch brake surface with a flat portion according to claim 2, characterized in that: The placement slot includes an axial opening facing the direction of the electric actuator's thrust and a lateral opening for lateral entry into the motor clutch.

4. The vertical grinding device for the motor clutch brake surface with a flat portion according to claim 3, characterized in that: The cross-sectional shape of the shoulder structure is U-shaped, and the curvature of the shoulder structure is adapted to the circumferential surface of the motor clutch.

5. A vertical grinding device for a motor clutch brake surface with a flat portion according to claim 4, characterized in that: The thrust mechanism includes a guide rod disposed on the frame. The guide rod is symmetrically disposed on both sides of the electric push rod along the width direction of the frame. One end of the guide rod is connected to the upper end of the lifting platform, and the other end of the guide rod passes through the frame and is provided with an anti-detachment component. An elastic component is provided between the frame and the lifting platform.

6. A vertical grinding device for a motor clutch brake surface with a flat portion according to claim 4, characterized in that: The base is provided with a correction column coaxially arranged with the motor clutch, and the grinding part is sleeved on the circumferential side of the correction column and in contact with the grinding surface of the motor clutch.

7. A vertical grinding device for a motor clutch brake surface with a flat portion according to claim 4, characterized in that: A square steel profile is horizontally arranged on the lower side of the base, and the base is assembled with the square steel profile by fixing screws.

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