Motor spindle polishing device

Abstract

The motor spindle grinding device comprises an operation table and further comprises a grinding assembly arranged in the middle of the operation table, the grinding assembly comprises a support, a grinding opening is formed in the support, a plurality of grooves are formed in the two sides of the support with the grinding opening as the circle center, limiting devices are arranged in the grooves, one end of each limiting device penetrates into the grinding opening, and the other end of each limiting device penetrates into the grinding opening. A polishing rod is detachably connected to the polishing rod; the reducing assembly is installed on the support and comprises sliding belt wheels arranged on the two sides of the support, a connecting rod is arranged between the two sliding belt wheels, the middle of the connecting rod is connected with the piston end of the electric telescopic rod, a sliding groove for the connecting rod to move is formed in the support, and the sliding belt wheel and the rotating shaft on the same side are in transmission fit with the same synchronous belt; the fixing device is installed on the operation table. According to the grinding device, the distance between the grinding rod and the main shaft element is adjusted through the variable-diameter assembly, grinding of the main shaft elements with different diameters is achieved, and the practicability of the device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of grinding devices, and in particular to a motor spindle grinding device. Background Art

[0002] The spindle is an important part of the motor. As the link for electromechanical energy conversion between the motor and the equipment, it supports the rotating parts, transmits torque and determines the relative position of the rotating parts to the stator. During the production and processing of the spindle, it is usually necessary to grind the raw materials used in production to improve the surface quality of the parts. The raw materials of the spindle workpiece are large and small, and the burrs remaining on the surface also have different thicknesses. The grinding method follows the same thickness grinding method, so the burr removal effect is not ideal; and when the existing grinding device grinds the outer diameter of the spindle workpiece, different sizes of workpieces require the selection of grinding components of different specifications, which makes the processing procedure complicated. Summary of the invention

[0003] In view of the above problems, the present invention provides a motor spindle grinding device, which automatically adjusts the diameter of the grinding component to adapt to the grinding of burrs of different thicknesses and spindle workpieces of different sizes, thereby improving the consistency and production efficiency of the spindle grinding process.

[0004] The technical solution of the present invention is as follows:

[0005] A motor spindle grinding device comprises an operating table and also includes:

[0006] A grinding assembly is arranged in the middle of the operating table, and the grinding assembly includes a support, a grinding port is arranged on the support, a plurality of grooves are arranged on both sides of the support with the grinding port as the center, a limiting device is arranged in the groove, one end of the limiting device passes through the grinding port and is detachably connected to a rotating shaft, and a grinding rod is arranged on the rotating shaft;

[0007] A diameter reducing assembly is installed on the support, and the diameter reducing assembly includes sliding pulleys arranged on both sides of the support, a connecting rod is arranged between the two sliding pulleys, the middle part of the connecting rod is connected to the piston end of the electric telescopic rod, and a slide groove for the connecting rod to move is arranged on the support, and the sliding pulleys on the same side and the rotating shaft are driven by the same synchronous belt;

[0008] The fixing device is installed on the operating table, and the fixing device includes a clamping device arranged on both sides of the support and a second driving component driving the clamping device to move horizontally.

[0009] The working principle of the above technical solution is as follows:

[0010] When a motor spindle grinding device of the present invention is used, the spindle element is installed on a fixing device, and the second driving component drives the spindle element to move left and right in the grinding opening. The sliding pulley is driven to move by the electric telescopic rod. The sliding pulley moves outward by pulling the synchronous belt, driving multiple grinding rods to contract. When the sliding pulley moves inward, the limiting component drives the grinding rods to expand outward, thereby realizing the adjustment of the distance between the multiple grinding rods and the spindle element.

[0011] The present invention uses a diameter reducing component to adjust the distance between the grinding rod and the main shaft element, thereby achieving grinding of main shaft elements with different diameters and improving the practicability of the device.

[0012] In a further technical solution, the limiting device includes a positioning rod arranged in the middle of the groove, the positioning rod is sleeved with a return spring and a sliding block, the return spring one end of the return spring close to the grinding opening is fixedly connected to the side wall of the groove, the other end of the return spring is fixedly connected to the sliding block, movable rods are provided on both sides of the positioning rod, the end of the movable rod away from the grinding opening is fixedly connected to the sliding block, the other end of the movable rod passes through the grinding opening and is fixedly connected with a support bracket, the support bracket is detachably connected to the rotating shaft, the sliding pulley moves inward, the synchronous belt relaxes, and the return spring on the positioning rod drives the sliding block to move outward, thereby driving the grinding rod to move outward, thereby ensuring that the synchronous belt is always tightly connected to the rotating shaft and the sliding pulley. By setting the return spring, the impact force when the grinding rod contacts the spindle element can also be buffered.

[0013] In a further technical solution, the supporting top of the supporting bracket is fixedly connected to the end of the movable rod, a supporting bottom cover is hinged on one side of the supporting top, the supporting bottom cover and the other side of the supporting top are fixed to each other by connecting bolts, and the rotating shaft is placed between the supporting bottom cover and the supporting top, and by rotating the connecting bolts, the supporting bottom cover and the supporting top are embraced and fixed to the rotating shaft, which is convenient for the disassembly and installation of the grinding rod.

[0014] In a further technical solution, a motor three is provided on one side of the support and between the sliding pulley and the grinding port. The motor three is connected to two synchronous pulleys for transmission. The two synchronous pulleys are respectively installed on both sides of the support and are connected to the synchronous belt transmission. The diameter of the synchronous pulley is larger than the diameter of the sliding pulley. The sliding pulley is rotatably connected to the connecting rod. The motor three drives the synchronous pulley to rotate, and the rotating shaft is driven to rotate through the synchronous belt to realize the rotational grinding of the grinding rod.

[0015] In a further technical solution, the clamping device includes a support column and a clamping opening installed on the top of the support column, and the inner end of the clamping opening is provided with a two-way bolt passing through both sides of the clamping opening, and the threads on the two-way bolt are matched with two clamping blocks symmetrically distributed with the center of the clamping opening, and rubber gaskets are provided on opposite sides of the two clamping blocks. The spindle element is placed between the clamping blocks, and the two-way bolt is rotated to drive the two clamping blocks to move toward the spindle element at the same time, ensuring that after the clamping block fixes the spindle element, the center of the spindle element and the center of the clamping opening remain on the same horizontal line, thereby avoiding grinding errors.

[0016] In a further technical solution, the centers of the grinding opening and the clamping opening are located on the same horizontal line.

[0017] In a further technical solution, the second drive assembly includes a motor 1 fixed to the side of the operating table, and the output end of the motor 1 is transmission-connected with a bidirectional screw, and the bidirectional screw is connected to the bottom of the support column through a matching threaded sleeve. The rotation of the bidirectional screw drives the support column to move left and right, thereby enabling the grinding device to grind different positions of the spindle element.

[0018] In a further technical solution, one of the support columns is provided with a second motor, the output end of the second motor is transmission-connected to the clamping port, and the other support column is rotatably connected to the clamping port. The spindle element is driven to rotate by the second motor, and grinding between the spindle element and the grinding rod can also be achieved.

[0019] In a further technical solution, the rotation directions of the motor 2 and the motor 3 are opposite, so that the rotation directions of the spindle element and the grinding rod are opposite, thereby improving the grinding efficiency.

[0020] In a further technical solution, an infrared rangefinder is provided on a side of the groove away from the grinding port for measuring the moving distance of the sliding block, thereby determining the distance between the grinding rod and the spindle element, thereby improving the grinding accuracy.

[0021] The beneficial effects of the present invention are:

[0022] 1. The present invention uses a variable diameter assembly to adjust the distance between the grinding rod and the spindle element, thereby achieving grinding of spindle elements with different diameters and improving the practicability of the device;

[0023] 2. The sliding pulley moves inward, the synchronous belt relaxes, and the reset spring on the positioning rod drives the sliding block to move outward, thereby driving the grinding rod to move outward, thereby ensuring that the synchronous belt is always tightly connected with the rotating shaft and the sliding pulley. The reset spring can also buffer the impact force when the grinding rod contacts the spindle element;

[0024] 3. Put the rotating shaft between the support bottom cover and the support top, and rotate the connecting bolts to make the support bottom cover and the support top embrace and fix the rotating shaft, so as to facilitate the disassembly and installation of the grinding rod;

[0025] 4. The spindle element is placed between the clamping blocks. The two-way bolts are rotated to drive the two clamping blocks to move toward the spindle element at the same time. After the clamping blocks fix the spindle element, the center of the spindle element and the center of the clamping opening are kept on the same horizontal line to avoid grinding errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of a motor spindle grinding device according to an embodiment of the present invention;

[0027] Figure 2 It is a structural diagram of the support;

[0028] Figure 3 It is a schematic diagram of the enlarged structure of A;

[0029] Figure 4 It is a structural schematic diagram of the support bracket;

[0030] Figure 5 It is a schematic diagram of the structure of the clamping mouth.

[0031] Description of reference numerals:

[0032] 10. Operating table; 20. Support; 21. Grinding mouth; 22. Electric telescopic rod; 23. Slide groove; 24. Sliding pulley; 25. Synchronous belt; 26. Motor three; 27. Synchronous pulley; 30. Groove; 31. Positioning rod; 32. Reset spring; 33. Sliding block; 34. Movable rod; 35. Rotating shaft; 36. Grinding rod; 40. Support bracket; 41. Support top; 42. Support bottom plate; 43. Connecting bolt; 50. Motor one; 51. Bidirectional screw; 52. Support column; 53. Clamping mouth; 60. Clamping block; 61. Bidirectional bolt; 70. Motor two; 80. Infrared rangefinder. DETAILED DESCRIPTION

[0033] The embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0034] Example:

[0035] A motor spindle grinding device, such as Figure 1As shown, it includes an operating table 10 and a grinding assembly, which is arranged in the middle of the operating table 10. The grinding assembly includes a support 20, and a grinding port 21 is arranged on the support 20. Three grooves 30 are arranged on both sides of the support 20 with the grinding port 21 as the center. The three grooves 30 are arranged above, on the right side and below the grinding port 21 in sequence. A limiting device is arranged in the groove 30, and one end of the limiting device passes through the grinding port 21 and is detachably connected to a rotating shaft 35, and a grinding rod 36 is arranged on the rotating shaft 35; a reducing assembly is installed on the support 20, and the reducing assembly The parts include sliding pulleys 24 arranged on both sides of the support 20, the sliding pulleys 24 are installed on the left side of the grinding port 21, a connecting rod is provided between the two sliding pulleys 24, the middle part of the connecting rod is connected to the piston end of the electric telescopic rod 22, and a slide groove 23 for the movement of the connecting rod is provided on the support 20, and the same synchronous belt 25 is used for transmission between the sliding pulleys 24 and the rotating shaft 35 on the same side; a fixing device is installed on the operating table 10, and the fixing device includes a clamping device arranged on both sides of the support 20 and a second driving component for driving the clamping device to move horizontally.

[0036] When a motor spindle grinding device of the present invention is used, the spindle element is installed on a fixing device, and the second driving component drives the spindle element to move left and right in the grinding opening 21, and the sliding pulley 24 is driven to move by the electric telescopic rod 22. The sliding pulley 24 moves outward by pulling the synchronous belt 25, driving multiple grinding rods 36 to contract. When the sliding pulley 24 moves inward, the limiting component drives the grinding rod 36 to expand outward, thereby realizing the adjustment of the distance between the multiple grinding rods 36 and the spindle element.

[0037] The present invention uses a diameter reducing assembly to adjust the distance between the grinding rod 36 and the spindle element, thereby achieving grinding of spindle elements with different diameters and improving the practicability of the device.

[0038] In another embodiment, if Figure 2 and Figure 3 The cam 33 is provided with a plurality of movable rods 34 on the two sides of the cam 33, and the movable rod 34 is provided with a plurality of movable rods 34 on the two sides of the cam 33. The movable rod 34 is provided with a plurality of movable rods 34 on the two sides of the cam 33, and the movable rod 34 is provided with a plurality of movable rods 34 on the two sides of the cam 33. The movable rod 34 is provided with a plurality of movable rods 34 on the two sides of the cam 33. The movable rod 34 is provided with a plurality of movable rods 34 on the two sides of the cam 33. The movable rod 34 is provided with a plurality of movable rods 34 on the two sides of the cam 33. The movable rod 34 is provided with a plurality of movable rods 34 on the two sides of the cam 33. The movable rod 34 is provided with a plurality of movable rods 34 on the two sides of the cam 33. The movable rod

[0039] In another embodiment, if Figure 4 As shown, the support top 41 of the support bracket 40 is fixedly connected to the end of the movable rod 34, and a support bottom cover is hinged on one side of the support top 41. The support bottom cover and the other side of the support top 41 are fixed to each other by connecting bolts 43. The rotating shaft 35 is inserted between the support bottom cover and the support top 41. By rotating the connecting bolts 43, the support bottom cover and the support top 41 can embrace and fix the rotating shaft 35, which is convenient for disassembly and installation of the grinding rod 36.

[0040] In another embodiment, a motor three 26 is provided on one side of the support 20 and between the sliding pulley 24 and the grinding port 21. The motor three 26 is transmission-connected to two synchronous pulleys 27. The two synchronous pulleys 27 are respectively installed on both sides of the support 20 and are transmission-connected to the synchronous belt 25. The diameter of the synchronous pulley 27 is larger than the diameter of the sliding pulley 24. The sliding pulley 24 is rotationally connected to the connecting rod. The motor three 26 drives the synchronous pulley 27 to rotate, and drives the rotating shaft 35 to rotate through the synchronous belt 25, thereby realizing the rotation and grinding of the grinding rod 36.

[0041] In another embodiment, if Figure 5 As shown, the clamping device includes a support column 52 and a clamping opening 53 installed on the top of the support column 52. The inner end of the clamping opening 53 is provided with a two-way bolt 61 that passes through both sides of the clamping opening 53. The threads on the two-way bolt 61 are matched with two clamping blocks 60 that are symmetrically distributed with the center of the clamping opening 53. Rubber gaskets are provided on the opposite sides of the two clamping blocks 60. The spindle element is placed between the clamping blocks 60. The two-way bolt 61 is rotated to drive the two clamping blocks 60 to move toward the spindle element at the same time, ensuring that after the clamping block 60 fixes the spindle element, the center of the spindle element and the center of the clamping opening 53 remain on the same horizontal line, avoiding grinding errors.

[0042] In another embodiment, the centers of the grinding opening 21 and the clamping opening 53 are located on the same horizontal line.

[0043] In another embodiment, the second drive assembly includes a motor 50 fixed to the side of the operating table 10, and the output end of the motor 50 is transmission-connected with a bidirectional screw 51, and the bidirectional screw 51 is connected to the bottom of a support column 52 through a matching threaded sleeve. The rotation of the bidirectional screw 51 drives the support column 52 to move left and right, thereby enabling the grinding device to grind different positions of the spindle element.

[0044] In another embodiment, a second motor 70 is provided on one of the support columns 52, and the output end of the second motor 70 is transmission-connected with the clamping opening 53, and the other support column 52 is rotatably connected with the clamping opening 53. The spindle element is driven to rotate by the second motor 70, and grinding between the spindle element and the grinding rod 36 can also be achieved.

[0045] In another embodiment, the rotation directions of the motor 2 70 and the motor 3 26 are opposite, so that the rotation directions of the spindle element and the grinding rod 36 are opposite, thereby improving the grinding efficiency.

[0046] In another embodiment, an infrared rangefinder 80 is provided on the side of the groove 30 away from the grinding port 21 for measuring the moving distance of the sliding block 33, thereby determining the distance between the grinding rod 36 and the spindle element, thereby improving the grinding accuracy.

[0047] The above-mentioned embodiments only express the specific implementation of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A motor spindle grinding device, comprising an operating table, characterized in that: Also includes: A grinding assembly is arranged in the middle of the operating table, and the grinding assembly includes a support, a grinding port is arranged on the support, a plurality of grooves are arranged on both sides of the support with the grinding port as the center, a limiting device is arranged in the groove, one end of the limiting device passes through the grinding port and is detachably connected to a rotating shaft, and a grinding rod is arranged on the rotating shaft; A diameter reducing assembly is installed on the support, and the diameter reducing assembly includes sliding pulleys arranged on both sides of the support, a connecting rod is arranged between the two sliding pulleys, the middle part of the connecting rod is connected to the piston end of the electric telescopic rod, and a slide groove for the connecting rod to move is arranged on the support, and the sliding pulleys on the same side and the rotating shaft are driven by the same synchronous belt; The fixing device is installed on the operating table, and the fixing device includes a clamping device arranged on both sides of the support and a second driving component for driving the clamping device to move horizontally.

2. The motor spindle grinding device according to claim 1, characterized in that: The limiting device includes a positioning rod arranged in the middle of the groove, a return spring and a sliding block are sleeved on the positioning rod, one end of the return spring close to the grinding port is fixedly connected to the side wall of the groove, and the other end of the return spring is fixedly connected to the sliding block, movable rods are provided on both sides of the positioning rod, one end of the movable rod away from the grinding port is fixedly connected to the sliding block, the other end of the movable rod passes through the grinding port and is fixedly connected to a support bracket, and the support bracket is detachably connected to the rotating shaft.

3. The motor spindle grinding device according to claim 2, characterized in that: The support top of the support bracket is fixedly connected to the end of the movable rod, one side of the support top is hinged with a support bottom cover, and the other side of the support bottom cover and the support top are fixed to each other by connecting bolts.

4. The motor spindle grinding device according to claim 1, characterized in that: A motor three is provided on one side of the support and between the sliding pulley and the grinding port. The motor three is transmission-connected to two synchronous pulleys. The two synchronous pulleys are respectively installed on both sides of the support and are transmission-connected to the synchronous belt. The diameter of the synchronous pulley is larger than the diameter of the sliding pulley. The sliding pulley is rotationally connected to the connecting rod.

5. The motor spindle grinding device according to claim 1, characterized in that: The clamping device includes a support column and a clamping port installed at the top of the support column. The inner end of the clamping port is provided with a two-way bolt that passes through both sides of the clamping port. The threads on the two-way bolt are matched with two clamping blocks that are symmetrically distributed with the center of the clamping port. Rubber gaskets are provided on the opposite sides of the two clamping blocks.

6. The motor spindle grinding device according to claim 1, characterized in that: The centers of the grinding opening and the clamping opening are located on the same horizontal line.

7. The motor spindle grinding device according to claim 1, characterized in that: The second driving assembly includes a motor 1 fixed to the side of the operating table, and the output end of the motor 1 is transmission-connected with a bidirectional screw, and the bidirectional screw is connected to the bottom of the support column through a matching threaded sleeve.

8. The motor spindle grinding device according to claim 1, characterized in that: One of the support columns is provided with a second motor, the output end of the second motor is transmission-connected with the clamping port, and the other support column is rotationally connected with the clamping port.

9. The motor spindle grinding device according to claims 7 and 8, characterized in that: The rotation directions of the motor 2 and the motor 3 are opposite.

10. The motor spindle grinding device according to claim 1, characterized in that: An infrared rangefinder is arranged on one side of the groove away from the polishing opening.

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