Nut inner ring polishing device convenient to position

Abstract

The invention belongs to the technical field of nut machining, and provides a nut inner ring polishing device convenient to position, which comprises a base, a placing groove for placing a nut is formed in the center of the top of the base, and a mounting frame is fixedly connected to the top of the base; a clamping assembly used for fixing a nut is arranged in the containing groove. The clamping assembly comprises a first cavity, a connecting groove, an ejector rod and a clamping plate, the first cavity is annular and is formed in the base, the connecting groove penetrates through the inner wall of the side, close to the containing groove, of the first cavity, the ejector rod is slidably connected to the connecting groove, the inner end of the ejector rod is arc, and the clamping plate is fixedly connected to the end, away from the first cavity, of the ejector rod. According to the device, nuts of different sizes can be positioned, meanwhile, chippings can be discharged by opening the discharging opening after polishing is finished, and the polishing sleeve can be mounted and dismounted more easily and rapidly.

Description

Technical Field

[0001] This invention belongs to the field of nut processing technology, specifically a nut inner ring grinding device that is easy to position. Background Technology

[0002] Nuts, also known as bolts, are fastening tools with a threaded hole in the center, often used in conjunction with screws to secure joints. They come in various types, classified by shape (hexagonal, round, square, winged, etc.), function (locking, welding, capping, etc.), and material (carbon steel, stainless steel, aluminum alloy, PVC, etc.). They are widely used in machinery manufacturing, construction, electronic equipment and home appliances, aerospace, and other fields, ensuring structural stability or normal equipment operation through connecting components.

[0003] In the machining process of hexagonal nuts, a grinding device is needed to grind their inner ring. Patent CN106808327A discloses a nut inner ring grinding device that facilitates positioning. It includes a base, on which two sliding rods symmetrically positioned about the base's central axis are fixedly connected to the upper surface. The inner sides of the two sliding rods are fixedly connected via a top plate. Two cylinders are also fixedly mounted on the upper surface of the top plate. Piston rods in the cylinders penetrate the top plate and extend directly below it. Collars are slidably connected to the outer surfaces of both sliding rods, and the inner sides of the two collars are fixedly connected via a crossbar. The piston rods of both cylinders are fixedly connected to the upper surface of the crossbar. This nut inner ring grinding device, which facilitates positioning, has an insert rod fixedly connected to the lower surface of the crossbar, and the upper surface of the base has an opening... The first insertion hole can limit the vertical movement direction of the grinding sleeve, preventing positional deviation from the nut to be ground, resulting in good positioning. The addition of a push rod solves the problem of poor positioning in existing nut inner ring grinding devices. While the comparative document can position the nut, its positioning structure has a fixed stroke, limiting its applicability to nuts of fixed sizes. Furthermore, its placement groove is closed at the bottom, causing debris generated during grinding to accumulate, affecting subsequent grinding and making cleaning difficult. Finally, the grinding sleeve used for grinding the nut is fixedly fitted onto the shaft surface, making it difficult to disassemble and time-consuming to replace when wear occurs, thus impacting work efficiency.

[0004] To address this issue, those skilled in the art have proposed a nut inner ring grinding device that is easy to position, thus resolving the problems raised in the background art. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides a nut inner ring grinding device that facilitates positioning, thereby solving the problems in the prior art such as the inability to position nuts of different sizes, the difficulty in cleaning debris generated during the grinding process, and the time-consuming installation and removal of the grinding sleeve.

[0006] A nut inner ring grinding device for easy positioning includes a base, a placement groove for placing nuts is opened at the center of the top of the base, and a mounting bracket is fixedly connected to the top of the base; a clamping assembly for fixing nuts is provided inside the placement groove; the clamping assembly includes a first cavity, a connecting groove, a push rod and a clamping plate, the first cavity is annular and opened inside the base, the connecting groove passes through the inner wall of the first cavity near the placement groove, the push rod is slidably connected to the connecting groove and its inner end is arc-shaped, and the clamping plate is fixedly connected to the end of the push rod away from the first cavity.

[0007] Preferably, the clamping assembly further includes a first rotating ring, an arc-shaped block, a first sliding groove, a first slider, and a first spring. The first rotating ring is rotatably connected to the first cavity. The arc-shaped block is fixedly connected to the side of the first rotating ring near the placement groove. The first sliding groove is opened at the top of the base and communicates with the first cavity. The first slider is fixedly connected to the first rotating ring and slidably connected to the first sliding groove. The first spring is installed inside the first sliding groove and its two ends are respectively fixedly connected to one side of the first slider and one side of the inner wall of the first sliding groove.

[0008] Preferably, the clamping assembly further includes a second slide groove, a second slider, and a second spring. The second slide groove is formed on the inner wall of the bottom of the first cavity and is located below the top rod. The second slider is fixedly connected to the bottom of the top rod and slidably connected to the second slide groove. The second spring is installed inside the second slide groove and its two ends are respectively fixedly connected to the inner wall of the second slider near the placement groove and the second slide groove near the placement groove. The elastic force of the first spring is greater than the sum of the elastic forces of multiple sets of second springs.

[0009] Preferably, the bottom of the placement groove is provided with a discharge port for discharging debris, and an opening and closing component is provided between the discharge port and the placement groove.

[0010] Preferably, the opening and closing assembly includes a second cavity, a baffle, a second rotating ring, a connecting block, and a connecting rod. The second cavity is located below the first cavity and communicates with the first chute, the placement groove, and the discharge port. The baffle is composed of multiple fan-shaped plates that collectively cover the bottom of the placement groove. One end of the baffle is rotatably connected to the second cavity. The second rotating ring is fixedly connected to the first slider and rotatably connected to the second cavity. The connecting block is fixedly connected to the outer end of the baffle. The connecting rod is movably connected to the second cavity and its two ends are rotatably connected to the connecting block and the second rotating ring, respectively.

[0011] Preferably, two sets of hydraulic rods are installed on the top of the mounting frame, and a mounting plate is fixedly connected to the bottom of the drive end of the hydraulic rods. A motor is installed at the top center of the mounting plate, and a grinding sleeve for grinding nuts is provided below the mounting plate. An installation assembly is provided between the grinding sleeve and the drive shaft of the motor.

[0012] Preferably, the mounting assembly includes a mounting base, a mounting groove, and a mounting block. The mounting base is fixedly connected to the bottom of the motor's drive shaft, the mounting groove is formed at the bottom of the mounting base, and the mounting block is fixedly connected to the top of the grinding sleeve and is adapted to the size of the mounting groove.

[0013] Preferably, the mounting assembly further includes a mounting hole, a through groove, and a mounting rod. The mounting hole extends through the mounting block, the through groove extends through the inner wall of one side of the mounting groove, and the mounting rod is slidably connected to the through groove and is adapted to the size of the mounting hole.

[0014] Preferably, the mounting assembly further includes a third slide groove, a third slider, a third spring, and a pull block. The third slide groove is formed in the inner wall of the through groove. The third slider is fixedly connected to the outer periphery of the mounting rod and slidably connected to the third slide groove. The third spring is sleeved on the outer periphery of the mounting rod and its two ends are respectively fixedly connected to the inner wall of the third slider on the side away from the mounting groove and the side of the third slide groove away from the mounting groove. The pull block is fixedly connected to the outer end of the mounting rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention features a clamping assembly. A first slider slides along a first groove, compressing a first spring. A first rotating ring drives an arc-shaped block to rotate synchronously along the first cavity with the first slider. When the arc-shaped block moves away from behind the push rod, a second spring rebounds and, through the second slider, moves the push rod and clamping plate towards the inside of the first cavity. When the clamping plate moves to a distance greater than the nut size, the nut is placed in the placement groove and centered on the clamping plate. Then, the first slider is released, and the first spring rebounds and, through the first slider, moves the first rotating ring and arc-shaped block in the opposite direction. When the arc-shaped block contacts the push rod, it pushes the push rod and clamping plate out towards the placement groove. When the clamping plate is tightly fitted against the outer wall of the nut, it is clamped and fixed by the elastic force of the first spring. This design makes the nut positioning operation simpler and faster, effectively improving work efficiency. It can also position nuts of different sizes, making it more widely applicable.

[0016] 2. This invention features an opening and closing assembly. When the first spring is compressed, the second rotating ring rotates synchronously with the first slider along the second cavity. Since one end of the baffle is rotatably connected to the second cavity and both ends of the connecting rod are rotatably connected to the connecting block and the second rotating ring respectively, the second rotating ring drives the baffle to rotate along one end via the connecting rod, thereby opening the discharge port. When the first spring rebounds and drives the first slider to move in the opposite direction, the second rotating ring drives the baffle to reset, thereby closing the discharge port. This design allows the device to close the discharge port during the grinding process to prevent the nut from falling off, and at the same time, it can open the discharge port after grinding to discharge the debris, effectively reducing the labor intensity of the cleaning work.

[0017] 3. This invention features an installation assembly. Pulling the pull block outward causes it to slide the third slider along the third groove via the installation rod, compressing the third spring. When the installation rod moves out of the installation groove, the installation block at the top of the grinding sleeve is placed in the installation groove, aligning the installation hole and the installation rod on the same axis. Releasing the pull block causes the third spring to rebound and, via the third slider, moves the installation rod inward. When the installation rod is inserted into the installation hole, the installation block is fixed in the installation groove, completing the installation of the grinding sleeve. Pulling the pull block outward again moves the installation rod outward. When the installation rod moves out of the installation hole, the installation block is removed from the installation groove, allowing the grinding sleeve to be removed for replacement. This design simplifies and speeds up the installation and removal of the grinding sleeve, effectively improving replacement efficiency when the grinding sleeve wears out. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the clamping component structure of the present invention. Figure 1 ; Figure 3 for Figure 1 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the clamping component structure of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the feed port connection structure of the present invention; Figure 6 This is a schematic diagram of the opening and closing component structure of the present invention; Figure 7 This is a schematic diagram of the grinding sleeve connection structure of the present invention; Figure 8 This is a schematic diagram of the installation component structure of the present invention.

[0019] In the picture: 1. Base; 2. Placement slot; 3. Clamping assembly; 31. First cavity; 32. Connecting slot; 33. Top rod; 34. Clamping plate; 35. First rotating ring; 36. Arc block; 37. First sliding groove; 38. First slider; 39. First spring; 310. Second sliding groove; 311. Second slider; 312. Second spring; 4. Discharge port; 5. Opening and closing assembly; 51. Second cavity; 52. Baffle; 53. Second rotating ring; 54. Connecting block; 55. Connecting rod; 6. Mounting bracket; 7. Hydraulic rod; 8. Mounting plate; 9. Motor; 10. Grinding sleeve; 11. Mounting assembly; 111. Mounting seat; 112. Mounting groove; 113. Mounting block; 114. Mounting hole; 115. Through groove; 116. Mounting rod; 117. Third sliding groove; 118. Third slider; 119. Third spring; 1110. Pull block. Detailed Implementation

[0020] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0021] As attached Figure 1 To be continued Figure 8 As shown: Example 1: This invention provides a nut inner ring grinding device for easy positioning, including a base 1. The top center of the base 1 has a placement groove 2 for placing nuts. The placement groove 2 is provided with a clamping assembly 3 for fixing nuts. The clamping assembly 3 includes a first cavity 31, a connecting groove 32, a top rod 33, a clamping plate 34, a first rotating ring 35, an arc block 36, a first sliding groove 37, a first slider 38, a first spring 39, a second sliding groove 310, a second slider 311, and a second spring 312. The bottom of the placement groove 2 has a discharge port 4 for removing debris. The top of the base 1 is fixedly connected to a mounting frame 6. Two sets of hydraulic rods 7 are installed on the top of the mounting frame 6. The bottom of the drive end of the hydraulic rods 7 is fixedly connected to a mounting plate 8. A motor 9 is installed at the top center of the mounting plate 8. A grinding sleeve 10 for grinding nuts is provided below the mounting plate 8.

[0022] Furthermore, the first cavity 31 is annular and located inside the base 1. A connecting groove 32 penetrates the inner wall of the first cavity 31 near the placement groove 2. A push rod 33 is slidably connected to the connecting groove 32, with its inner end arc-shaped. A clamping plate 34 is fixedly connected to the end of the push rod 33 away from the first cavity 31. A first rotating ring 35 is rotatably connected to the first cavity 31. An arc-shaped block 36 is fixedly connected to the side of the first rotating ring 35 near the placement groove 2. A first sliding groove 37 is located at the top of the base 1 and communicates with the first cavity 31. A first sliding block 38 is fixedly connected to the first rotating ring 35 and slidably connected to the first sliding groove 37. Spring 39 is installed inside the first slide groove 37 and its two ends are fixedly connected to one side of the first slider 38 and the inner wall of one side of the first slide groove 37, respectively. The second slide groove 310 is opened on the bottom inner wall of the first cavity 31 and is located below the top rod 33. The second slider 311 is fixedly connected to the bottom of the top rod 33 and slidably connected to the second slide groove 310. The second spring 312 is installed inside the second slide groove 310 and its two ends are fixedly connected to the inner wall of the second slider 311 near the placement groove 2 and the inner wall of the second slide groove 310 near the placement groove 2, respectively. The elastic force of the first spring 39 is greater than the sum of the elastic forces of multiple sets of second springs 312.

[0023] As can be seen from the above, the first slider 38 slides along the first groove 37 to compress the first spring 39. During this process, the first rotating ring 35 will drive the arc block 36 to rotate synchronously along the first cavity 31 with the first slider 38. When the arc block 36 moves away from the back of the top rod 33, the second spring 312 rebounds and can drive the top rod 33 and the clamping plate 34 to move towards the inside of the first cavity 31 through the second slider 311. When the first slider 38 is released, the first spring 39 rebounds and can drive the first rotating ring 35 and the arc block 36 to move in the opposite direction through the first slider 38. When the arc block 36 contacts the top rod 33, since the elastic force of the first spring 39 is greater than the sum of the elastic forces of multiple sets of second springs 312, the arc block 36 will push the top rod 33 and the clamping plate 34 out toward the placement groove 2 and compress the second spring 312 through the second slider 311.

[0024] Example 2: This example is basically the same as the previous example, except that an opening and closing component 5 is provided between the discharge port 4 and the placement groove 2. The opening and closing component 5 includes a second cavity 51, a baffle 52, a second rotating ring 53, a connecting block 54 and a connecting rod 55.

[0025] Furthermore, the second cavity 51 is opened below the first cavity 31 and is connected to the first chute 37, the placement groove 2 and the discharge port 4. The baffle 52 is composed of multiple fan-shaped plates and together cover the bottom of the placement groove 2. One end of the baffle 52 is rotatably connected to the second cavity 51. The second rotating ring 53 is fixedly connected to the first slider 38 and rotatably connected to the second cavity 51. The connecting block 54 is fixedly connected to the outer end of the baffle 52. The connecting rod 55 is movably connected to the second cavity 51 and its two ends are rotatably connected to the connecting block 54 and the second rotating ring 53, respectively.

[0026] As can be seen from the above, sliding the first slider 38 along the first groove 37 will drive the second rotating ring 53 to rotate synchronously along the second cavity 51. During this process, since the bottom of one end of the baffle 52 is rotatably connected to the second cavity 51 and the two ends of the connecting rod 55 are respectively rotatably connected to the connecting block 54 and the second rotating ring 53, the second rotating ring 53 will drive the baffle 52 to rotate along one end through the connecting rod 55, thereby opening the discharge port 4. Sliding the first slider 38 in the opposite direction will drive the baffle 52 to reset, thereby closing the discharge port 4.

[0027] Example 3: This example is basically the same as the previous example, except that an installation component 11 is provided between the grinding sleeve 10 and the drive shaft of the motor 9. The installation component 11 includes a mounting base 111, a mounting groove 112, a mounting block 113, a mounting hole 114, a through groove 115, a mounting rod 116, a third sliding groove 117, a third slider 118, a third spring 119, and a pull block 1110.

[0028] Furthermore, the mounting base 111 is fixedly connected to the bottom of the drive shaft of the motor 9, the mounting groove 112 is opened at the bottom of the mounting base 111, the mounting block 113 is fixedly connected to the top of the grinding sleeve 10 and is adapted to the size of the mounting groove 112, the mounting hole 114 passes through the mounting block 113, the through groove 115 passes through the inner wall of one side of the mounting groove 112, the mounting rod 116 is slidably connected to the through groove 115 and is adapted to the size of the mounting hole 114, the third sliding groove 117 is opened in the inner wall of the through groove 115, the third slider 118 is fixedly connected to the outer periphery of the mounting rod 116 and slidably connected to the third sliding groove 117, the third spring 119 is sleeved on the outer periphery of the mounting rod 116 and its two ends are respectively fixedly connected to the inner wall of the third slider 118 away from the mounting groove 112 and the third sliding groove 117 away from the mounting groove 112, and the pull block 1110 is fixedly connected to the outer end of the mounting rod 116.

[0029] As can be seen from the above, pulling the pull block 1110 outward will cause the third slider 118 to slide outward along the third slide groove 117 via the mounting rod 116 and squeeze the third spring 119. Releasing the pull block 1110 will cause the third spring 119 to rebound, which will cause the mounting rod 116 to move inward via the third slider 118. Thus, the grinding sleeve 10 can be installed by inserting the mounting rod 116 into the mounting hole 114 or the grinding sleeve 10 can be disassembled by removing the mounting rod 116 from the mounting hole 114.

[0030] Working principle: First, pull the pull block 1110 outward so that it drives the third slider 118 to slide outward along the third slide groove 117 via the mounting rod 116, compressing the third spring 119. When the mounting rod 116 moves out of the mounting groove 112, the mounting block 113 on the top of the grinding sleeve 10 is placed in the mounting groove 112, and the mounting hole 114 is aligned with the mounting rod 116 on the same axis. Then, release the pull block 1110, and the third spring 119 rebounds and drives the mounting rod 116 inward via the third slider 118. When the mounting rod 116 is inserted into the mounting hole 114, the mounting block 113 is fixed in the mounting groove 112, thus completing the installation of the grinding sleeve 10. Then, slide the first slider 38 along the first slide groove 37 to align with the third spring 119. The first spring 39 compresses the first block 36. During this process, the first rotating ring 35 drives the arc-shaped block 36 to rotate synchronously with the first slider 38 along the first cavity 31. When the arc-shaped block 36 moves away from the back of the push rod 33, the second spring 312 rebounds and drives the push rod 33 and the clamping plate 34 to move towards the inside of the first cavity 31 via the second slider 311. When the clamping plate 34 moves to a distance greater than the size of the nut, the nut is placed in the placement groove 2 and positioned at the center of the clamping plate 34. Then, the first slider 38 is released, and the first spring 39 rebounds and drives the first rotating ring 35 and the arc-shaped block 36 to move in the opposite direction via the first slider 38. When the arc-shaped block 36 contacts the push rod 33, because the elastic force of the first spring 39 is greater than the sum of the elastic forces of multiple sets of second springs 312, the arc-shaped block... 36 will push the top rod 33 and clamping plate 34 into the placement groove 2 and squeeze the second spring 312 through the second slider 311. When the clamping plate 34 is tightly attached to the outer wall of the nut, it can be clamped and fixed by the elastic force of the first spring 39. During this process, when the first spring 39 is squeezed, the second rotating ring 53 will rotate synchronously with the first slider 38 along the second cavity 51. Since one end of the baffle 52 is rotatably connected to the second cavity 51 and both ends of the connecting rod 55 are rotatably connected to the connecting block 54 and the second rotating ring 53 respectively, the second rotating ring 53 will drive the baffle 52 to rotate along one end through the connecting rod 55, thereby opening the discharge port 4. When the first spring 39 rebounds and drives the first slider 38 to move in the opposite direction, the second rotating ring 53 will drive the first slider 38 to move in the opposite direction. The baffle 52 is reset, thereby closing the discharge port 4. After the nut is clamped and fixed, the hydraulic rod 7 is activated to drive the mounting plate 8 to descend. When the grinding sleeve 10 descends to the center of the nut, the motor 9 is activated to drive the grinding sleeve 10 to rotate, and the grinding work can begin. After grinding, the grinding sleeve 10 is raised and the first slider 38 is slid again to squeeze the first spring 39. When the clamping plate 34 separates from the outer wall of the nut, the nut can be taken out of the placement groove 2. At the same time, the baffle 52 opens to allow the debris generated during the grinding process to be discharged through the discharge port 4. When the grinding sleeve 10 is severely worn and needs to be replaced, the pull block 1110 is pulled outward again to drive the mounting rod 116 to move outward. When the mounting rod 116 moves out of the mounting hole 114,Simply remove the mounting block 113 from the mounting slot 112 to remove and replace the grinding sleeve 10.

[0031] The embodiments of the present invention are given for the purposes of illustration and description. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made by those skilled in the art to the above embodiments within the scope of the present invention should be included within the protection scope of the present invention.

Claims

1. A nut inner ring grinding device for easy positioning, comprising a base (1), wherein a placement groove (2) for placing nuts is provided at the center of the top of the base (1), and a mounting bracket (6) is fixedly connected to the top of the base (1); characterized in that: The placement groove (2) is provided with a clamping assembly (3) for fixing the nut; The clamping assembly (3) includes a first cavity (31), a connecting groove (32), a push rod (33), and a clamping plate (34). The first cavity (31) is annular and is located inside the base (1). The connecting groove (32) passes through the inner wall of the first cavity (31) near the placement groove (2). The push rod (33) is slidably connected to the connecting groove (32) and its inner end is arc-shaped. The clamping plate (34) is fixedly connected to the end of the push rod (33) away from the first cavity (31).

2. The nut inner ring grinding device for easy positioning as described in claim 1, characterized in that: The clamping assembly (3) further includes a first rotating ring (35), an arc-shaped block (36), a first sliding groove (37), a first slider (38), and a first spring (39). The first rotating ring (35) is rotatably connected to the first cavity (31). The arc-shaped block (36) is fixedly connected to the side of the first rotating ring (35) near the placement groove (2). The first sliding groove (37) is opened on the top of the base (1) and communicates with the first cavity (31). The first slider (38) is fixedly connected to the first rotating ring (35) and slidably connected to the first sliding groove (37). The first spring (39) is installed inside the first sliding groove (37) and its two ends are fixedly connected to one side of the first slider (38) and the inner wall of one side of the first sliding groove (37), respectively.

3. The nut inner ring grinding device for easy positioning as described in claim 2, characterized in that: The clamping assembly (3) further includes a second slide groove (310), a second slider (311), and a second spring (312). The second slide groove (310) is opened on the bottom inner wall of the first cavity (31) and is located below the top rod (33). The second slider (311) is fixedly connected to the bottom of the top rod (33) and slidably connected to the second slide groove (310). The second spring (312) is installed inside the second slide groove (310) and its two ends are respectively fixedly connected to the inner wall of the second slider (311) near the placement groove (2) and the second slide groove (310) near the placement groove (2). The elastic force of the first spring (39) is greater than the sum of the elastic forces of multiple sets of second springs (312).

4. The nut inner ring grinding device for easy positioning as described in claim 3, characterized in that: The bottom of the placement groove (2) is provided with a discharge port (4) for discharging debris, and an opening and closing component (5) is provided between the discharge port (4) and the placement groove (2).

5. The nut inner ring grinding device for easy positioning as described in claim 4, characterized in that: The opening and closing assembly (5) includes a second cavity (51), a baffle (52), a second rotating ring (53), a connecting block (54), and a connecting rod (55). The second cavity (51) is located below the first cavity (31) and is connected to the first slide groove (37), the placement groove (2), and the discharge port (4). The baffle (52) is composed of multiple fan-shaped plates that together cover the bottom of the placement groove (2). One end of the baffle (52) is rotatably connected to the second cavity (51). The second rotating ring (53) is fixedly connected to the first slider (38) and rotatably connected to the second cavity (51). The connecting block (54) is fixedly connected to the outer end of the baffle (52). The connecting rod (55) is movably connected to the second cavity (51) and its two ends are rotatably connected to the connecting block (54) and the second rotating ring (53), respectively.

6. The nut inner ring grinding device for easy positioning as described in claim 1, characterized in that: Two sets of hydraulic rods (7) are installed on the top of the mounting bracket (6). The bottom of the driving end of the hydraulic rod (7) is fixedly connected to the mounting plate (8). A motor (9) is installed at the top center of the mounting plate (8). A grinding sleeve (10) for grinding nuts is provided below the mounting plate (8). An installation assembly (11) is provided between the grinding sleeve (10) and the drive shaft of the motor (9).

7. The nut inner ring grinding device for easy positioning as described in claim 6, characterized in that: The mounting assembly (11) includes a mounting base (111), a mounting groove (112), and a mounting block (113). The mounting base (111) is fixedly connected to the bottom of the drive shaft of the motor (9). The mounting groove (112) is opened at the bottom of the mounting base (111). The mounting block (113) is fixedly connected to the top of the grinding sleeve (10) and is adapted to the size of the mounting groove (112).

8. The nut inner ring grinding device for easy positioning as described in claim 7, characterized in that: The mounting assembly (11) further includes a mounting hole (114), a through groove (115), and a mounting rod (116). The mounting hole (114) passes through the mounting block (113), the through groove (115) passes through the inner wall of one side of the mounting groove (112), and the mounting rod (116) is slidably connected to the through groove (115) and is adapted to the size of the mounting hole (114).

9. The nut inner ring grinding device for easy positioning as described in claim 8, characterized in that: The mounting assembly (11) further includes a third slide groove (117), a third slider (118), a third spring (119), and a pull block (1110). The third slide groove (117) is formed on the inner wall of the through groove (115). The third slider (118) is fixedly connected to the outer periphery of the mounting rod (116) and slidably connected to the third slide groove (117). The third spring (119) is sleeved on the outer periphery of the mounting rod (116) and its two ends are fixedly connected to the inner wall of the third slider (118) away from the mounting groove (112) and the third slide groove (117) away from the mounting groove (112), respectively. The pull block (1110) is fixedly connected to the outer end of the mounting rod (116).

Images