Grinding device for circular hole of gear

Abstract

The present invention discloses a grinding device for a circular hole of a gear, and specifically relates to the field of grinding technology, comprising a workbench, wherein a rotating clamping assembly is provided at the upper end of the workbench, a grinding assembly is provided at the rear side of the rotating clamping assembly, a cleaning assembly is provided at the front end of the grinding assembly, and a moving assembly is provided on the left side of the rotating clamping assembly. The grinding device for a circular hole of a gear described in the present invention realizes the clamping and rotation of the workpiece gear through the rotating clamping assembly, the grinding assembly and the cleaning assembly, and can clean and push dust from the inner wall of the workpiece during and after the grinding process, thereby avoiding the grinding quality problem caused by the accumulation of impurities, and then the seamless connection of the grinding of the inner hole and the outer surface of the workpiece is completed by the cooperation of the grinding assembly and the moving assembly, thereby reducing the time of manual replacement of the workpiece or re-clamping, and improving the flexibility of production and the utilization rate of equipment.

Description

Technical Field

[0001] The invention relates to the technical field of grinding, and in particular to a grinding device for a circular hole of a gear. Background Art

[0002] In the field of mechanical manufacturing, gears are extremely critical transmission components, and their quality affects the operating performance of the entire mechanical system. For the circular holes on the gears, the previous grinding methods mostly relied on manually operated handheld grinding tools, such as workers holding sandpaper, grinding heads and other tools and inserting them into the circular holes for grinding. This method is inefficient, and the uniformity of grinding is difficult to ensure. The results of different workers vary greatly, resulting in uneven quality indicators such as the dimensional accuracy and surface roughness of the circular holes. In addition, the labor intensity is high, and fatigue errors are prone to occur during long-term work.

[0003] Chinese patent announcement number CN210046401 U discloses a grinding device for a circular hole of a gear, comprising an operating table, a fixed frame is fixedly installed on one side of the operating table, a grinding roller is rotatably connected to the inner side wall of the fixed frame, a grinding motor for driving the grinding roller is installed on the outer side wall of the fixed frame, a grinding mechanism is threadedly sleeved on the grinding roller, an electric slide is fixedly installed on the other side of the upper end of the operating table, a gear positioning device is installed on the electric slide, the gear positioning device comprises a vertical plate and a horizontal plate fixedly connected to the upper and lower ends of the vertical plate, the horizontal plate located at the lower end is installed on the electric slide, and the two positioning plates that move up and down can realize the clamping and positioning of gears of different sizes, and the positioned gear moves horizontally with the electric slide to realize the grinding mechanism to perform the grinding operation on the circular hole of the gear, and the grinding mechanism is easy to replace to improve the scope of application of grinding;

[0004] However, in actual use, the above device cannot clean the polished workpiece, and has a simple structure and low operational flexibility. Summary of the invention

[0005] The main purpose of the present invention is to provide a grinding device for a circular hole of a gear, which can effectively solve the problems of being unable to clean the workpiece after grinding, having a single structure and low operational flexibility.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A grinding device for a circular hole of a gear comprises a workbench, wherein a rotating clamping assembly is arranged at the upper end of the workbench, a grinding assembly is arranged at the rear side of the rotating clamping assembly, a cleaning assembly is arranged at the front end of the grinding assembly, and a moving assembly is arranged at the left side of the rotating clamping assembly.

[0008] Preferably, the rotating clamping assembly includes a base slidably connected to the upper end of the workbench, a motor is fixedly installed at the front end of the base, the inner surface of the base is rotatably connected to a limiting ring, the inner surface of the limiting ring is fixedly connected to a rotating seat, the outer surface of the limiting ring is provided with a plurality of threaded grooves, bolts are rotatably connected to both sides of the rear end of the base, and the outer surfaces of the bolts are threadedly connected to the threaded grooves.

[0009] Preferably, the output end of the motor is fixedly connected to a clamping base, the inner surface of the clamping base is provided with three limiting grooves, the rear end of the clamping base is provided with an arc groove, the inner surface of the arc groove is slidably connected to three moving blocks, the outer surfaces of the three moving blocks are slidably connected to the three limiting grooves, the rear ends of the three moving blocks are fixedly connected to clamping blocks, and the rear end of the clamping base is fixedly connected to an annular seat.

[0010] Preferably, the grinding assembly includes a fixed seat 1 fixedly connected to the upper end of the workbench, a fixed seat 2 is fixedly connected to the upper end of the workbench and located on the rear side of the fixed seat 1, two limit rods are fixedly connected to one end of the fixed seat 1 and the fixed seat 2 close to each other, and the outer surfaces of the two limit rods are slidably connected to a sliding seat.

[0011] Preferably, a hydraulic device is fixedly installed at the front end of the fixed seat 2, the output end of the hydraulic device is fixedly connected to the rear end of the sliding seat, the front end of the sliding seat is fixedly connected to a fixing rod, and a grinding block is installed at the front end of the fixing rod.

[0012] Preferably, the cleaning assembly includes a cleaning ring fixedly connected to the outer surface of the fixed rod, the cleaning ring is located at the rear end of the grinding block, and a magnetic stone is fixedly installed at the front end of the grinding block.

[0013] Preferably, the rear end of the clamping base is fixedly connected to a telescopic rod, the rear end of the clamping base is fixedly connected to a spring, the spring is sleeved on the outer surface of the telescopic rod, the rear ends of the telescopic rod and the spring are jointly and fixedly connected to a cleaning ring 2, and the rear end of the cleaning ring 2 is installed with a magnetic stone 2.

[0014] Preferably, the moving component includes a connecting block fixedly connected to the left end of the sliding seat, the left end of the connecting block is fixedly connected to a rack 1, the outer surface of the rack 1 is meshingly connected to a gear, the inner surface of the gear is provided with a spring sheet, the inner surface of the spring sheet is slidably connected to a ratchet, and the upper end of the ratchet is fixedly connected to a belt transmission mechanism.

[0015] Preferably, the lower side of the end of the belt transmission mechanism away from the ratchet wheel is fixedly connected to a limiting shaft, the upper end of the limiting shaft is fixedly connected to a rotating disk, one side of the upper end of the rotating disk is fixedly connected to a limiting cylinder, the outer surface of the limiting cylinder is slidably connected to an annular seat 2, the upper end of the workbench is fixedly connected to a limiting seat 1, the outer surface of the limiting seat 1 is rotatably connected to the annular seat 2, and the front end of the annular seat 2 is fixedly connected to a fan-shaped tooth.

[0016] Preferably, the outer surface of the sector-shaped tooth is meshingly connected with a rack 2, the front end of the rack 2 is fixedly connected with a movable block, the right end of the movable block is fixedly connected to the base, the two sides of the upper end of the workbench are fixedly connected with fixed seats 3, the two sides of the fixed seats 3 close to each other are commonly fixedly connected with a limiting seat 2, the inner surface of the movable block is slidably connected to the limiting seat 2, and the lower end of the base is slidably connected to the limiting seat 2.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention realizes the clamping and rotation of the workpiece gear by rotating the clamping component, the grinding component and the cleaning component, and can clean and push dust on the inner wall of the workpiece during and after grinding, thereby avoiding grinding quality problems caused by impurity accumulation. Then, the grinding component and the moving component are used to achieve seamless connection of the grinding of the inner hole and the outer surface of the workpiece, thereby reducing the time for manual replacement of the workpiece or re-clamping, and improving the production flexibility and equipment utilization.

[0019] 2. The present invention can drive the workpiece to rotate while clamping the workpiece gear through the rotating clamping assembly, so that the grinding assembly can extend into the inner wall of the circular hole of the workpiece gear for uniform grinding. During grinding, the cleaning ring 1 can clean the inner wall of the workpiece, and use the magnetic force of the magnetic stone 1 and the magnetic stone 2 to achieve the effect of the cleaning ring 2 pushing out the dust after the grinding is completed, ensuring that the inner wall of the workpiece can be effectively cleaned and dust pushed during and after grinding, avoiding grinding quality problems caused by impurity accumulation, and making the grinding quality more stable and reliable.

[0020] 3. The present invention cooperates with the grinding component and the moving component, utilizes the retreat of the grinding component to drive the sector teeth to swing, thereby changing the position of the base and causing the workpiece gear to move. At this time, the grinding block can quickly switch to grinding the outer tooth side of the workpiece, achieving seamless connection between the grinding of the inner hole and the outer surface of the workpiece, reducing the time for manual replacement of the workpiece or re-clamping, and improving production flexibility and equipment utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the rotary clamping assembly of the present invention;

[0023] Figure 3 It is a schematic structural diagram of the rotating seat of the present invention;

[0024] Figure 4 It is a partial structural schematic diagram of the rotary clamping assembly of the present invention;

[0025] Figure 5 It is a schematic structural diagram of the grinding assembly of the present invention;

[0026] Figure 6 It is a partial structural schematic diagram of the cleaning assembly of the present invention;

[0027] Figure 7 For the present invention Figure 6 A is an enlarged structural diagram;

[0028] Figure 8 It is a structural schematic diagram of the mobile assembly of the present invention;

[0029] Fig. 9 It is a schematic diagram of another state structure of the mobile component of the present invention;

[0030] Fig.10 It is a partial structural schematic diagram of the mobile component of the present invention.

[0031] In the figure: 1. workbench; 2. rotating clamping assembly; 21. base; 22. motor; 23. limiting ring; 231. threaded groove; 232. bolt; 24. rotating seat; 25. clamping base; 251. limiting groove; 26. arc groove; 27. moving block; 28. clamping block; 29. ​​annular seat 1; 3. grinding assembly; 31. fixed seat 1; 32. fixed seat 2; 33. limiting rod; 34. sliding seat; 35. hydraulic device; 36. fixed rod; 37. grinding block; 4. cleaning assembly; 41. Cleaning ring one; 43. Magnetic stone one; 44. Telescopic rod; 45. Spring; 46. Cleaning ring two; 47. Magnetic stone two; 5. Moving assembly; 51. Connecting block; 52. Rack one; 53. Gear; 54. Shrapnel; 55. Ratchet; 56. Belt transmission mechanism; 561. Limiting shaft; 57. Rotating disk; 571. Limiting cylinder; 58. Ring seat two; 59. Limiting seat one; 510. Fan-shaped teeth; 511. Rack two; 512. Movable block; 513. Fixed seat three; 514. Limiting seat two. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0033] Embodiment 1, as Figure 1 As shown, a grinding device for a circular hole of a gear comprises a workbench 1, a rotating clamping assembly 2 is arranged at the upper end of the workbench 1, a grinding assembly 3 is arranged at the rear side of the rotating clamping assembly 2, a cleaning assembly 4 is arranged at the front end of the grinding assembly 3, and a moving assembly 5 is arranged on the left side of the rotating clamping assembly 2.

[0034] Therefore, this scheme realizes the clamping and rotation of the workpiece gear by rotating the clamping component 2, the grinding component 3 and the cleaning component 4, and the inner wall of the workpiece can be cleaned and dusted during and after the grinding of the workpiece, and then the grinding component 3 and the moving component 5 are used to complete the seamless connection of the grinding of the inner hole and the outer surface of the workpiece, thereby reducing the time for manual replacement of the workpiece or re-clamping, and improving the production flexibility and equipment utilization.

[0035] Embodiment 2: Based on Embodiment 1, this embodiment is to achieve the effect of dust removal during and after grinding the workpiece.

[0036] See also Figure 1-7 The rotating clamping assembly 2 includes a base 21 slidably connected to the upper end of the workbench 1, a motor 22 is fixedly installed at the front end of the base 21, the inner surface of the base 21 is rotatably connected to a limit ring 23, the inner surface of the limit ring 23 is fixedly connected to a rotating seat 24, a plurality of thread grooves 231 are provided on the outer surface of the limit ring 23, the two sides of the rear end of the base 21 are rotatably connected to the thread grooves 231, and the outer surface of the thread groove 231 is threadedly connected to the thread groove 231.

[0037] Specifically, the limiting ring 23, the threaded groove 231 and the bolt 232 can limit the rotating seat 24 so that when the clamping base 25 rotates, the rotating seat 24 will not rotate, thereby ensuring the clamping effect of the moving block 27 and the clamping block 28 on the workpiece gear.

[0038] See also Figure 2-4 The output end of the motor 22 is fixedly connected with a clamping base 25, and three limiting grooves 251 are provided on the inner surface of the clamping base 25. A circular arc groove 26 is provided at the rear end of the clamping base 25. Three moving blocks 27 are slidably connected to the inner surface of the circular arc groove 26. The outer surfaces of the three moving blocks 27 are slidably connected to the three limiting grooves 251, and the rear ends of the three moving blocks 27 are fixedly connected with clamping blocks 28. The rear end of the clamping base 25 is fixedly connected with an annular seat 29, and the workpiece gear can be placed at the rear end of the annular seat 29, and the outer ring diameter of the annular seat 29 is smaller than the outer ring diameter of the workpiece gear, and the inner ring diameter of the annular seat 29 is larger than the inner ring diameter of the workpiece gear.

[0039] Furthermore, the surface of the clamping block 28 is provided with a rubber layer to prevent the workpiece from being damaged during clamping.

[0040] Furthermore, the limiting groove 251 is used to limit the moving block 27 so that the moving block 27 can only move in a straight line. When the clamping base 25 and the arc groove 26 rotate, the moving block 27 and the clamping block 28 simultaneously make radial linear movements along the arc groove 26 on the clamping base 25. The movements of the three moving blocks 27 are synchronous and uniform, and the three moving blocks 27 and the clamping blocks 28 are evenly distributed on the circumference. The angle between adjacent moving blocks 27 is 120°, and they move synchronously. Therefore, no matter how slightly eccentric the workpiece is relative to the center of the clamping base 25 when it is initially placed, under the action of the arc groove 26, the center of the workpiece will be automatically adjusted to a position that coincides with the center of the clamping base 25, thereby realizing the centering function. As the moving block 27 and the clamping block 28 move radially, they will eventually fit tightly with the workpiece.

[0041] After the workpiece gear is clamped, the bolt 232 can be removed, so that the limit ring 23 loses its limit, and then the rotating seat 24 can be driven by the rotating arc groove 26 and the moving block 27 and other structures to rotate as a whole, thereby driving the workpiece gear to rotate. The workpiece and the grinding block 37 form a relative motion, so that the circular hole can pass through the grinding block 37 evenly during the rotation process, thereby ensuring that the grinding allowance on the inner wall of the circular hole is evenly distributed.

[0042] Furthermore, in the initial state, the bolt 232 is connected to the thread groove 231, so that the rotating seat 24 is in a fixed state, and then the workpiece gear is placed on the rear end of the annular seat 29, and the motor 22 is started to drive the clamping base 25 to rotate. When the clamping base 25 rotates, the position of the arc groove 26 will change, so that the three moving blocks 27 slide synchronously in the limiting groove 251, so that the three clamping blocks 28 are stuck in the tooth gap of the workpiece gear, and the axis of the workpiece and the axis of the clamping base 25 are on the same horizontal line. After the workpiece is clamped, the two bolts 232 are rotated to separate them from the thread groove 231, the limiting ring 23 and the rotating seat 24 lose their limit, and the moving block 27 and the clamping block 28 are against the workpiece. Therefore, at this time, the clamping base 25 continues to rotate, which will cause the moving block 27 to drive the rotating seat 24 to rotate as a whole, thereby causing the workpiece gear itself to rotate.

[0043] See also Figure 5 The grinding assembly 3 includes a fixed seat 1 31 fixedly connected to the upper end of the workbench 1, a fixed seat 2 32 is fixedly connected to the upper end of the workbench 1 and located on the rear side of the fixed seat 1 31, and two limit rods 33 are fixedly connected to one end of the fixed seat 1 31 and the fixed seat 2 32 close to each other, and the outer surfaces of the two limit rods 33 are slidably connected to a sliding seat 34.

[0044] A hydraulic device 35 is fixedly installed at the front end of the fixed seat 32 , and the output end of the hydraulic device 35 is fixedly connected to the rear end of the sliding seat 34 . A fixing rod 36 is fixedly connected to the front end of the sliding seat 34 , and a grinding block 37 is installed at the front end of the fixing rod 36 .

[0045] Furthermore, the hydraulic device 35 can push the sliding seat 34 to move as a whole, thereby controlling the distance between the grinding block 37 and the workpiece gear.

[0046] See also Figure 5-7 The cleaning assembly 4 includes a cleaning ring 41 fixedly connected to the outer surface of the fixing rod 36, the cleaning ring 41 is located at the rear end of the grinding block 37, and a magnetic stone 43 is fixedly installed at the front end of the grinding block 37.

[0047] The rear end of the clamping base 25 is fixedly connected to a telescopic rod 44, and the rear end of the clamping base 25 is fixedly connected to a spring 45. The spring 45 is sleeved on the outer surface of the telescopic rod 44. The rear ends of the telescopic rod 44 and the spring 45 are jointly fixedly connected to a cleaning ring 46, and the rear end of the cleaning ring 46 is installed with a magnetic stone 47.

[0048] Furthermore, the magnetic stone 1 43 and the magnetic stone 2 47 mentioned above have one N pole and one S pole, and when the N pole is close to the S pole, the two will attract each other, wherein the surface of the magnetic stone 2 47 is coated with a molybdenum disulfide coating, and molybdenum disulfide has a layered structure, and the force between its molecular layers is weak. When subjected to external force, these molecular layers can slide relatively, thereby playing a good lubricating role. When coated on the surface of the rotating magnetic stone 2 47, it can effectively reduce the friction coefficient between the contacting magnetic stone 2 47 and the magnetic stone 1 43, and reduce the friction force. At the same time, the molybdenum disulfide coating itself is very thin, and will not interfere with the magnetic pole interaction between the magnetic stone 2 47 and the magnetic stone 1 43, and will not affect the adsorption effect of the two.

[0049] Cleaning ring 1 41 can follow the rear end of the grinding block 37 to clean the inner wall of the workpiece during grinding, while cleaning ring 2 46 can remove dust from the inner wall of the workpiece after grinding. When the grinding block 37 needs to move forward or backward, the relative position change between magnetic stone 1 43 and magnetic stone 2 47 can quickly cause the corresponding action of cleaning ring 2 46, ensuring effective cleaning and dust removal of the inner wall of the workpiece.

[0050] Furthermore, when grinding the circular hole of the workpiece, the workpiece and the grinding block 37 are located on the same horizontal axis to push the hydraulic device 35 to drive the sliding seat 34 to move forward as a whole, so that the grinding block 37 enters the circular hole of the workpiece gear. At this time, the workpiece is in a rotating state, and the grinding block 37 can evenly grind its inner wall. During the grinding process, the grinding block 37 can continue to move forward partially and enter the inner ring of the annular seat 29, so that the cleaning ring 41 moves to the inner wall of the workpiece to clean the inner wall of the workpiece adhered to the inner wall of the workpiece during grinding. The dust is cleaned, and the magnetic stone 1 43 and the magnetic stone 2 47 are attracted together due to their close distance. After grinding, when the grinding block 37 withdraws backward, it will drive the cleaning ring 2 46 and the magnetic stone 2 47 to move outward together, so that the cleaning ring 2 46 pushes out the debris remaining on the inner wall of the workpiece. When the cleaning ring 2 46 moves to the maximum length of the telescopic rod 44, it will stop moving. At this time, the magnetic stone 1 43 continues to retreat, the distance between the two becomes larger, and the magnetic force disappears, thereby resetting the magnetic stone 2 47.

[0051] Therefore, this solution can drive the workpiece to rotate while clamping the workpiece gear through the rotating clamping component 2, so that the grinding component 3 can extend into the inner wall of the circular hole of the workpiece gear for uniform grinding. During grinding, the cleaning ring 1 41 can clean the inner wall of the workpiece, and use the magnetic force of the magnetic stone 1 43 and the magnetic stone 2 47 to achieve the effect of cleaning ring 2 46 pushing out dust after grinding, ensuring that the inner wall of the workpiece can be effectively cleaned and dusted during and after grinding, avoiding grinding quality problems caused by impurity accumulation, and making the grinding quality more stable and reliable.

[0052] Embodiment 3: This embodiment is based on embodiments 1 and 2, and is for achieving the effect of seamless connection between the inner hole and the outer surface of the workpiece.

[0053] See also Figure 1 , Figure 8 , Fig. 9 and Fig.10 The moving component 5 includes a connecting block 51 fixedly connected to the left end of the sliding seat 34, a rack 52 fixedly connected to the left end of the connecting block 51, a gear 53 meshingly connected to the outer surface of the rack 52, a spring sheet 54 provided on the inner surface of the gear 53, a ratchet 55 slidably connected to the inner surface of the spring sheet 54, and a belt transmission mechanism 56 fixedly connected to the upper end of the ratchet 55.

[0054] Specifically, when the rack 52 is meshed with the gear 53, the gear 53 will rotate. When the gear 53 rotates counterclockwise, the belt transmission mechanism 56 will rotate along with it. When the gear 53 rotates clockwise, the belt transmission mechanism 56 remains stationary.

[0055] Furthermore, the belt transmission mechanism 56 is composed of two pulleys and a belt.

[0056] Furthermore, when the sliding seat 34 drives the grinding block 37 forward, the connecting block 51 will drive the rack 1 52 to mesh with the gear 53, causing the gear 53 to rotate counterclockwise. At this time, the spring piece 54 will pass over the tooth back of the ratchet 55, so that the ratchet 55 cannot rotate with the gear 53. The ratchet 55 remains stationary at this time, and the grinding block 37 can move forward normally to grind the workpiece gear; after the grinding of the inner wall of the workpiece is completed, the sliding seat 34 is controlled to retreat, so that the grinding block 37 is completely separated from the workpiece. At this time, the rack 1 52 and the gear 53 have not yet meshed, and when the sliding seat 34 continues to retreat, it will drive the rack 1 52 to mesh with the gear 53, causing the gear 53 to rotate clockwise. At this time, the spring piece 54 will abut against the teeth of the ratchet 55, driving the ratchet 55 to rotate together, thereby rotating the belt transmission mechanism 56.

[0057] The lower side of the end of the belt transmission mechanism 56 away from the ratchet 55 is fixedly connected to a limiting shaft 561, the upper end of the limiting shaft 561 is fixedly connected to a rotating disk 57, one side of the upper end of the rotating disk 57 is fixedly connected to a limiting cylinder 571, the outer surface of the limiting cylinder 571 is slidably connected to an annular seat 2 58, the upper end of the workbench 1 is fixedly connected to a limiting seat 1 59, the outer surface of the limiting seat 1 59 is rotatably connected to the annular seat 2 58, and the front end of the annular seat 2 58 is fixedly connected to a fan-shaped tooth 510.

[0058] Furthermore, the limiting cylinder 571 is located on one side of the upper end of the rotating disk 57. When rotating, the limiting cylinder 571 rotates around the axis of the rotating disk 57, thereby driving the annular seat 2 58 and the fan-shaped teeth 510 to swing left and right, wherein the limiting seat 1 59 can limit the fan-shaped teeth 510, so that it swings with the limiting seat 1 59 as the axis.

[0059] The outer surface of the sector tooth 510 is meshedly connected with a rack 2 511, the front end of the rack 2 511 is fixedly connected with a movable block 512, the right end of the movable block 512 is fixedly connected to the base 21, the two sides of the upper end of the workbench 1 are fixedly connected with fixed seats 3 513, the sides of the two fixed seats 3 513 close to each other are fixedly connected with the limited seat 2 514, the inner surface of the movable block 512 is slidably connected with the limited seat 2 514, and the lower end of the base 21 is slidably connected with the limited seat 2 514.

[0060] Furthermore, when the sector teeth 510 swing left and right, the base 21 can be driven to move left or right as a whole, and the workpiece gear can be driven to move a certain distance, so that the grinding block 37 can grind the outer surface of the workpiece.

[0061] Furthermore, when the sliding seat 34 continues to retreat, the gear 53 rotates clockwise, which will drive the ratchet 55 and the belt transmission mechanism 56 to rotate together, so that the rotating disk 57 drives the limiting cylinder 571 to rotate clockwise, driving the annular seat 2 58 and the fan-shaped tooth 510 to swing to the right as a whole. At this time, the fan-shaped tooth 510 and the rack 2 511 are engaged, thereby driving the movable block 512 to push the base 21 to move to the right as a whole, changing the position of the workpiece, and then controlling the hydraulic device 35 to push the sliding seat 34 forward as a whole, so that the grinding block 37 moves to the side of the workpiece, and starting the motor 22 to make the rotating seat 24 rotate together with the workpiece as a whole, so that the grinding block 37 can grind the outer surface of the workpiece.

[0062] Therefore, this solution cooperates with the grinding component 3 and the moving component 5, and utilizes the retreat of the grinding component 3 to drive the sector teeth 510 to swing, thereby changing the position of the base 21 and causing the workpiece gear to move. At this time, the grinding block 37 can quickly switch to grinding the outer tooth side of the workpiece, achieving seamless connection between the grinding of the inner hole and the outer surface of the workpiece, reducing the time for manual replacement of the workpiece or re-clamping, and improving production flexibility and equipment utilization.

[0063] It should be noted that the specific installation method, circuit connection method and control method of the motor 22 and the hydraulic device 35 used in the present invention are all conventional designs and will not be elaborated in detail in the present invention.

[0064] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A grinding device for a circular hole of a gear, comprising a workbench (1), characterized in that: A rotating clamping assembly (2) is arranged at the upper end of the workbench (1), a grinding assembly (3) is arranged at the rear side of the rotating clamping assembly (2), a cleaning assembly (4) is arranged at the front end of the grinding assembly (3), and a moving assembly (5) is arranged on the left side of the rotating clamping assembly (2).

2. A gear circular hole grinding device according to claim 1, characterized in that: The rotary clamping assembly (2) comprises a base (21) slidably connected to the upper end of the workbench (1); a motor (22) is fixedly mounted on the front end of the base (21); a limit ring (23) is rotatably connected to the inner surface of the base (21); a rotating seat (24) is fixedly connected to the inner surface of the limit ring (23); a plurality of thread grooves (231) are formed on the outer surface of the limit ring (23); bolts (232) are rotatably connected to both sides of the rear end of the base (21); and the outer surfaces of the bolts (232) are threadedly connected to the thread grooves (231).

3. A gear circular hole grinding device according to claim 2, characterized in that: The output end of the motor (22) is fixedly connected to a clamping base (25), the inner surface of the clamping base (25) is provided with three limiting grooves (251), the rear end of the clamping base (25) is provided with an arc groove (26), the inner surface of the arc groove (26) is slidably connected to three moving blocks (27), the outer surfaces of the three moving blocks (27) are slidably connected to the three limiting grooves (251), the rear ends of the three moving blocks (27) are fixedly connected to clamping blocks (28), and the rear end of the clamping base (25) is fixedly connected to an annular seat (29).

4. A gear circular hole grinding device according to claim 2, characterized in that: The grinding assembly (3) comprises a fixing seat 1 (31) fixedly connected to the upper end of the workbench (1); a fixing seat 2 (32) is fixedly connected to the upper end of the workbench (1) and located at the rear side of the fixing seat 1 (31); two limiting rods (33) are fixedly connected to one end of the fixing seat 1 (31) and the fixing seat 2 (32) close to each other; and the outer surfaces of the two limiting rods (33) are slidably connected to a sliding seat (34) together.

5. A gear circular hole grinding device according to claim 4, characterized in that: A hydraulic device (35) is fixedly installed at the front end of the second fixed seat (32), the output end of the hydraulic device (35) is fixedly connected to the rear end of the sliding seat (34), the front end of the sliding seat (34) is fixedly connected to a fixing rod (36), and the front end of the fixing rod (36) is installed with a grinding block (37).

6. A gear circular hole grinding device according to claim 5, characterized in that: The cleaning assembly (4) comprises a cleaning ring (41) fixedly connected to the outer surface of the fixing rod (36); the cleaning ring (41) is located at the rear end of the grinding block (37); and a magnetic stone (43) is fixedly mounted at the front end of the grinding block (37).

7. A gear circular hole grinding device according to claim 3, characterized in that: The rear end of the clamping base (25) is fixedly connected to a telescopic rod (44), the rear end of the clamping base (25) is fixedly connected to a spring (45), the spring (45) is sleeved on the outer surface of the telescopic rod (44), the rear ends of the telescopic rod (44) and the spring (45) are fixedly connected to a cleaning ring (46), and the rear end of the cleaning ring (46) is installed with a magnetic stone (47).

8. A gear circular hole grinding device according to claim 4, characterized in that: The moving assembly (5) comprises a connecting block (51) fixedly connected to the left end of the sliding seat (34); the left end of the connecting block (51) is fixedly connected to a rack (52); the outer surface of the rack (52) is meshingly connected to a gear (53); the inner surface of the gear (53) is provided with a spring sheet (54); the inner surface of the spring sheet (54) is slidably connected to a ratchet (55); the upper end of the ratchet (55) is fixedly connected to a belt transmission mechanism (56).

9. A gear circular hole grinding device according to claim 8, characterized in that: The lower side of one end of the belt transmission mechanism (56) away from the ratchet (55) is fixedly connected to a limiting shaft (561), the upper end of the limiting shaft (561) is fixedly connected to a rotating disk (57), one side of the upper end of the rotating disk (57) is fixedly connected to a limiting cylinder (571), the outer surface of the limiting cylinder (571) is slidably connected to an annular seat 2 (58), the upper end of the workbench (1) is fixedly connected to a limiting seat 1 (59), the outer surface of the limiting seat 1 (59) is rotatably connected to the annular seat 2 (58), and the front end of the annular seat 2 (58) is fixedly connected to a fan-shaped tooth (510).

10. A gear circular hole grinding device according to claim 9, characterized in that: The outer surface of the sector tooth (510) is meshingly connected with a rack gear 2 (511), the front end of the rack gear 2 (511) is fixedly connected with a movable block (512), the right end of the movable block (512) is fixedly connected with the base (21), the two sides of the upper end of the workbench (1) are fixedly connected with a fixed seat 3 (513), the two sides of the fixed seat 3 (513) close to each other are fixedly connected with a limit seat 2 (514), the inner surface of the movable block (512) is slidably connected with the limit seat 2 (514), and the lower end of the base (21) is slidably connected with the limit seat 2 (514).

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