High-straightness polishing stick

Abstract

The utility model relates to the field of polishing stick industry, in particular to a high-straightness polishing stick. The technical problem is that a conventional polishing stick may deviate from an axis due to loose or misplaced installation in a gear, and the conventional polishing stick is easy to incline due to external collision in use. According to the technical scheme, the high-straightness polishing stick comprises a polishing stick assembly, a limiting assembly, a positioning protection assembly and a clamping assembly. The clamping assembly is arranged on the polishing stick assembly, stable clamping of the polishing stick assembly can be achieved through spring compression, stable installation and correct guiding of the polishing stick assembly in a gear penetrating hole can be guaranteed through the limiting assembly installed in the gear in an attached mode, and the polishing stick assembly is prevented from being damaged due to the arrangement of the positioning protection assembly. And a plurality of high-straightness guide rods are uniformly arranged on the positioning ring, so that the positioning and guiding effects are achieved, meanwhile, the guide rods can serve as a protection structure to protect the rod body, and the problems are solved.

Description

Technical Field

[0001] The utility model belongs to the field of polishing rod industry, and specifically relates to a high-straightness polishing rod. Background Art

[0002] In the polishing rod industry, the polishing rod is usually installed between two coaxially rotating gears for precision machining and surface treatment in industrial production. The high-straightness polishing rod has a high degree of straightness and surface quality, and can provide precise guidance and support during the machining process to ensure the accuracy and surface finish of the workpiece. In the prior art, conventional polishing rods are often directly installed in the through-holes of the gears, which may cause the polishing rod to deviate from the axis due to loose installation or misalignment. At the same time, when the polishing rod is used for grinding and other tasks, the polishing rod is easily tilted due to external collisions, resulting in low machining accuracy. Therefore, a high-straightness polishing rod is proposed to solve the above problems. Utility Model Content

[0003] In order to overcome the problem that during the use of the polishing rod, the conventional polishing rod may deviate from the axis due to loose installation or misalignment in the gear and the conventional polishing rod is easily tilted due to external collision during use.

[0004] The technical solution of the utility model is: a high-straightness polishing rod, comprising a polishing rod assembly, a limit assembly, a positioning protection assembly and a clamping assembly; a limit assembly for limiting is arranged on the polishing rod assembly; a positioning protection assembly for positioning protection is arranged at the lower end of the limit assembly; a clamping assembly for clamping is arranged inside the limit assembly.

[0005] Preferably, a polishing rod assembly that is easy to install in the gear perforation is provided, so that the service life of the polishing rod assembly can be extended. A limit assembly and a clamping assembly are provided on the polishing rod assembly, so that the stable installation and correct guidance of the polishing rod assembly in the gear perforation can be ensured while the polishing rod assembly is firmly clamped, thereby solving the problem that the conventional polishing rod may deviate from the axis due to loose installation or misalignment in the gear. A positioning protection assembly is provided on the outside of the polishing rod assembly, and while the positioning protection assembly plays a role in positioning and guiding the polishing rod assembly, it can also serve as a protective structure to protect the polishing rod assembly, preventing external force from directly acting on the polishing rod assembly to cause the polishing rod assembly to deviate, thereby solving the problem that the conventional polishing rod is easily tilted due to external collision during use.

[0006] Preferably, the polishing rod assembly includes a rod body and rounded corners; the upper and lower ends of the rod body are provided with rounded corners symmetrically distributed about the center of the rod body; the setting of the rounded corners helps to install the rod body inside the gear, and can effectively reduce the direct extrusion between the polishing rod and the edge of the perforation on the gear, thereby extending the service life of the rod body.

[0007] Preferably, the limit assembly includes a limit block, a first groove body, a second groove body, a third groove body, a first screw groove and a limit ring; the outer wall of the rod body is sleeved with a limit ring symmetrically distributed about the center of the rod body; the outer wall of the limit ring is fixedly connected to the limit block; the ends of the two limit blocks away from each other are in contact with the end face of the mounting gear; the upper and lower ends of the limit block are provided with a first groove body; the first groove body is a circular hole and is coaxial with the rod body; the outer wall edge of the limit block is provided with a second groove body symmetrically distributed about the center of the limit block; the second groove body is provided with a third groove body and two first screw grooves passing through the inner end face of the rod body close to the rod body; the two first screw grooves are symmetrically distributed about the center of the third groove body; the end face of the limit block is in contact with the end face of the mounting gear, and the limit ring and the rod body have the same central axis, so that the guide of the polishing rod assembly can be limited to avoid the deviation of the guide of the polishing rod assembly due to problems such as installation misalignment, and solves the problem that the conventional polishing rod may deviate from the axis due to loose installation or misalignment in the gear.

[0008] Preferably, the positioning and protection assembly includes a first positioning ring, a guide rod, a thread, a second positioning ring, a positioning hole and a nut; the outer wall of the rod body is sleeved with a first positioning ring symmetrically distributed about the center of the rod body; the upper end of the first positioning ring fits with the lower end of the limit ring; one end of the two first positioning rings close to each other is fixedly connected to a plurality of guide rods evenly distributed about the center of the first positioning ring; the outer wall of the guide rod is movably provided with a second positioning ring; the inner wall of the second positioning ring fits with the outer wall of the rod body; the first positioning ring sleeved on the outer wall of the rod body is connected with the second positioning ring through the guide rod, and the guide rod with high straightness can serve as a protective structure while providing a guiding function to protect other areas of the polishing rod assembly except the polishing working area reserved between the two positioning and protection assemblies, thereby preventing the polishing rod assembly from being tilted due to external collision, thereby solving the problem that conventional polishing rods are easily tilted due to external collision during use.

[0009] Preferably, the upper end of the second positioning ring is penetrated by a plurality of positioning holes evenly distributed about the center of the second positioning ring; the positioning holes are adapted to the guide rod; a thread is provided at the lower edge of the guide rod; a nut is threadedly installed on the outer wall of the lower end of the guide rod; the upper end of the nut fits with the lower end of the second positioning ring; the nut is threadedly installed on the thread, which facilitates locking the second positioning ring on the guide rod, so that the first positioning ring, the guide rod and the second positioning ring are connected to form a whole, thereby preventing the positioning protection assembly from falling off the polishing rod assembly during the rotational grinding process.

[0010] Preferably, the clamping assembly includes a sleeve, an arc-shaped rubber block, an extrusion block, a spring, a fixed block, a second screw groove and a bolt; a sleeve is movably provided on the inner wall of the third groove body; the sleeve is a hollow cylindrical structure; an arc-shaped rubber block is fixedly connected to one end of the sleeve close to the center of the rod body; one end of the arc-shaped rubber block close to the center of the rod body is in contact with the outer wall of the rod body; the arc-shaped rubber block is made of rubber material and has a certain degree of softness and friction. The arc-shaped rubber block is squeezed against the outer wall of the rod body, which helps to firmly clamp the rod body.

[0011] Preferably, an extrusion block is movably provided on the inner wall of the sleeve; one end of the extrusion block close to the center of the rod body is in contact with the end of the arc-shaped rubber block away from the center of the rod body; a spring is fixedly connected to the end of the extrusion block away from the center of the rod body; a fixing block is fixedly connected to the end of the spring away from the center of the rod body; the fixing block is adapted to the second groove body; a second screw groove symmetrically distributed about the center of the fixing block is penetrated and opened at the end of the fixing block away from the center of the rod body; the second screw groove corresponds to the first screw groove one by one; bolts are threadedly installed on the inner walls of the second screw groove and the first screw groove; an extrusion block is movably provided on the inner wall of the sleeve, and the spring is further compressed by pressing the second screw groove, pushing the extrusion block to generate an inward force on the arc-shaped rubber block, so that the arc-shaped rubber block squeezes the outer wall of the rod body, thereby achieving a firm clamping of the rod body, and the setting of the arc-shaped rubber block plays a protective limiting role to prevent the spring from being deformed by the lateral rotation force, causing the arc-shaped rubber block to slip off the outer wall of the rod body.

[0012] Beneficial effects of the utility model:

[0013] 1. The end face of the limit block fits with the end face of the installed gear, and the limit ring and the rod body have the same central axis, which can limit the guide of the polishing rod assembly to ensure that the guide of the polishing rod coincides with the central axis of the gear to improve the processing accuracy and solve the problem that the conventional polishing rod may deviate from the axis due to loose installation or misalignment in the gear;

[0014] 2. The first positioning ring and the second positioning ring are sleeved on the outer wall of the rod body and connected by a guide rod. The highly straight guide rod can provide a guiding function and serve as a protective structure to protect the polishing rod assembly except for the polishing work area left between the two positioning protection components, thereby preventing the polishing rod assembly from being tilted due to external collision, thus solving the problem that conventional polishing rods are prone to tilting due to external collision during use;

[0015] 3. An extrusion block is movably arranged on the inner wall of the sleeve. The spring is further compressed by pressing the second screw groove, pushing the extrusion block to generate an inward force on the arc-shaped rubber block, so that the arc-shaped rubber block is squeezed on the outer wall of the rod body, thereby achieving a stable clamping of the rod body. The setting of the arc-shaped rubber block plays a protective limit role, preventing the spring from being deformed by the lateral rotation force, causing the arc-shaped rubber block to slip off the outer wall of the rod body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a three-dimensional structural schematic diagram of a high straightness polishing rod of the utility model;

[0017] Figure 2 Shown is a three-dimensional structural schematic diagram of a polishing rod assembly of a high straightness polishing rod of the utility model;

[0018] Figure 3 What is shown is a first three-dimensional structural schematic diagram of a limiting assembly of a high straightness polishing rod of the utility model;

[0019] Figure 4 Shown is a second three-dimensional structural schematic diagram of a limiting assembly of a high-straightness polishing rod of the utility model;

[0020] Figure 5 Shown is a three-dimensional structural schematic diagram of a positioning and protection component of a high-straightness polishing rod of the utility model;

[0021] Figure 6 What is shown is a three-dimensional structural schematic diagram of a clamping assembly of a high-straightness polishing rod of the utility model.

[0022] The marks in the accompanying drawings are: 1-polishing rod assembly, 101-rod body, 102-rounded corners, 2-limiting assembly, 201-limiting block, 202-first groove body, 203-second groove body, 204-third groove body, 205-first screw groove, 206-limiting ring, 3-positioning protection assembly, 301-first positioning ring, 302-guide rod, 303-thread, 304-second positioning ring, 305-positioning hole, 306-nut, 4-clamping assembly, 401-sleeve, 402-arc rubber block, 403-extrusion block, 404-spring, 405-fixing block, 406-second screw groove, 407-bolt. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] See also Figure 1The utility model provides an embodiment: a high straightness polishing rod, including a polishing rod component 1, a limit component 2, a positioning protection component 3 and a clamping component 4; the polishing rod component 1 is provided with a limit component 2 for limiting; the lower end of the limit component 2 is provided with a positioning protection component 3 for positioning protection; the interior of the limit component 2 is provided with a clamping component 4 for clamping.

[0025] See also Figure 2 In this embodiment, the polishing rod assembly 1 includes a rod body 101 and rounded corners 102 ; the rounded corners 102 symmetrically distributed about the center of the rod body 101 are formed at the upper and lower edges of the rod body 101 .

[0026] See also Figure 3 and Figure 4 In this embodiment, the limit assembly 2 includes a limit block 201, a first groove body 202, a second groove body 203, a third groove body 204, a first screw groove 205 and a limit ring 206; the outer wall of the rod body 101 is provided with a limit ring 206 symmetrically distributed about the center of the rod body 101; the outer wall of the limit ring 206 is fixedly connected to the limit block 201; the ends of the two limit blocks 201 that are away from each other are in contact with the end face of the mounting gear; the first groove body 202 is provided at the upper and lower ends of the limit block 201; the first groove body 202 is a circular hole and is coaxial with the rod body 101; the second groove body 203 symmetrically distributed about the center of the limit block 201 is provided at the edge of the outer wall of the limit block 201; the third groove body 204 and two first screw grooves 205 are penetrated through the inner end face of the second groove body 203 close to the rod body 101; the two first screw grooves 205 are symmetrically distributed about the center of the third groove body 204.

[0027] See also Figure 5 In this embodiment, the positioning protection assembly 3 includes a first positioning ring 301, a guide rod 302, a thread 303, a second positioning ring 304, a positioning hole 305 and a nut 306; the outer wall of the rod body 101 is sleeved with a first positioning ring 301 symmetrically distributed about the center of the rod body 101; the upper end of the first positioning ring 301 is in contact with the lower end of the limit ring 206; the ends of the two first positioning rings 301 close to each other are fixedly connected to a plurality of guide rods 302 evenly distributed about the center of the first positioning ring 301; the guide rods A second positioning ring 304 is movably provided on the outer wall of 302; the inner wall of the second positioning ring 304 is in contact with the outer wall of the rod body 101; a plurality of positioning holes 305 evenly distributed about the center of the second positioning ring 304 are penetrated through the upper end of the second positioning ring 304; the positioning holes 305 are adapted to the guide rod 302; a thread 303 is provided at the lower end edge of the guide rod 302; a nut 306 is threadedly installed on the outer wall of the lower end of the guide rod 302; the upper end of the nut 306 is in contact with the lower end of the second positioning ring 304.

[0028] See also Figure 6In this embodiment, the clamping assembly 4 includes a sleeve 401, an arc-shaped rubber block 402, an extrusion block 403, a spring 404, a fixing block 405, a second screw groove 406 and a bolt 407; the inner wall of the third groove body 204 is movably provided with a sleeve 401; the sleeve 401 is a hollow cylindrical structure; the end of the sleeve 401 close to the center of the rod body 101 is fixedly connected with the arc-shaped rubber block 402; the end of the arc-shaped rubber block 402 close to the center of the rod body 101 is in contact with the outer wall of the rod body 101; the inner wall of the sleeve 401 is movably provided with an extrusion block 403; the extrusion block 403 close to the center of the rod body 101 is in contact with the outer wall of the rod body 101; One end of the center is fitted with the end of the arc rubber block 402 away from the center of the rod body 101; the end of the extrusion block 403 away from the center of the rod body 101 is fixed with a spring 404; the end of the spring 404 away from the center of the rod body 101 is fixed with a fixing block 405; the fixing block 405 is adapted to the second slot body 203; the end of the fixing block 405 away from the center of the rod body 101 is penetrated by a second screw groove 406 symmetrically distributed about the center of the fixing block 405; the second screw groove 406 corresponds to the first screw groove 205 one by one; the inner wall of the second screw groove 406 and the first screw groove 205 is threadedly installed with a bolt 407.

[0029] When using the polishing rod for work, first align one end of the rod body 101 with the through hole in the gear, and the rod body 101 can be installed inside the gear more smoothly through the fillet 102, and then the two limit blocks 201, the two first positioning rings 301 and the two second positioning rings 304 are sequentially sleeved on the outer wall of the rod body 101 from the end of the rod body 101 where the gear is not installed, so that the limit block 201 fits with the end face of the gear, and then the extrusion block 403 is inserted into the sleeve 401, and the second screw groove 406 is pushed to compress the spring 404, and the arc-shaped rubber block 402 is squeezed on the outer wall of the rod body 101, and then the bolt 407 is threadedly installed in the second screw groove 406 and the first screw groove 205 to fix it, so as to achieve a firm clamping of the rod body 101 and a stable installation of the limit block 201;

[0030] Then, pass the second positioning ring 304 through the guide rod 302 until the second positioning ring 304 is located above the thread 303, and thread the nut 306 onto the inner wall of the positioning hole 305 to achieve stable installation of the second positioning ring 304. At this time, the polishing rod assembly 1, the limit assembly 2, the positioning protection assembly 3 and the clamping assembly 4 are all stably connected to form a stable whole, ensuring that the polishing rod will not shift during use, thereby ensuring the accuracy and flatness of the processing.

[0031] Through the above steps, by providing a polishing rod assembly 1 that is easy to install in the gear perforation, the service life of the polishing rod assembly 1 can be extended, and by providing a limiting assembly 2 and a clamping assembly 4 on the polishing rod assembly 1, while achieving a firm clamping of the polishing rod assembly 1, it can ensure that the polishing rod assembly 1 is stably installed and correctly guided in the gear perforation, thereby solving the problem that the conventional polishing rod may deviate from the axis due to loose installation or misalignment in the gear. By providing a positioning protection assembly 3 on the outside of the polishing rod assembly 1, the positioning protection assembly 3 can play a role in positioning and guiding the polishing rod assembly 1, and at the same time, it can serve as a protective structure to protect the polishing rod assembly 1, preventing external force from directly acting on the polishing rod assembly 1 to cause the polishing rod assembly 1 to deviate, thereby solving the problem that the conventional polishing rod is easily tilted due to external collision during use.

[0032] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A high straightness polishing rod, comprising a polishing rod assembly (1); characterized in that: It also comprises a limit assembly (2), a positioning protection assembly (3) and a clamping assembly (4); a limit assembly (2) for limiting is arranged on the polishing rod assembly (1); a positioning protection assembly (3) for positioning protection is arranged at the lower end of the limit assembly (2); and a clamping assembly (4) for clamping is arranged inside the limit assembly (2).

2. A high straightness polishing rod according to claim 1, characterized in that: The polishing rod assembly (1) comprises a rod body (101) and rounded corners (102); the rounded corners (102) are symmetrically distributed about the center of the rod body (101) at the upper and lower edges of the rod body (101).

3. A high straightness polishing rod according to claim 2, characterized in that: The limiting assembly (2) comprises a limiting block (201), a first groove body (202), a second groove body (203), a third groove body (204), a first screw groove (205) and a limiting ring (206); the outer wall of the rod body (101) is sleeved with a limiting ring (206) symmetrically distributed about the center of the rod body (101); the outer wall of the limiting ring (206) is fixedly connected to the limiting block (201); the ends of the two limiting blocks (201) that are away from each other are in contact with the end surface of the mounting gear; the limiting block (201) The upper and lower ends of the rod (101) are provided with a first groove body (202); the first groove body (202) is a circular hole and is coaxial with the rod body (101); a second groove body (203) is provided at the edge of the outer wall of the limit block (201) and is symmetrically distributed about the center of the limit block (201); a third groove body (204) and two first screw grooves (205) are provided through the inner end surface of the second groove body (203) close to the rod body (101); the two first screw grooves (205) are symmetrically distributed about the center of the third groove body (204).

4. The high straightness polishing rod according to claim 2, characterized in that: The positioning protection assembly (3) comprises a first positioning ring (301), a guide rod (302), a thread (303), a second positioning ring (304), a positioning hole (305) and a nut (306); the outer wall of the rod body (101) is sleeved with a first positioning ring (301) symmetrically distributed about the center of the rod body (101); the upper end of the first positioning ring (301) is in contact with the lower end of the limit ring (206); one end of the two first positioning rings (301) close to each other is fixedly connected to a plurality of guide rods (302) uniformly distributed about the center of the first positioning ring (301); the outer wall of the guide rod (302) is movably provided with a second positioning ring (304); the inner wall of the second positioning ring (304) is in contact with the outer wall of the rod body (101).

5. The high straightness polishing rod according to claim 4, characterized in that: The upper end of the second positioning ring (304) is penetrated by a plurality of positioning holes (305) evenly distributed about the center of the second positioning ring (304); the positioning holes (305) are adapted to the guide rod (302); a thread (303) is provided at the edge of the lower end of the guide rod (302); a nut (306) is threadedly mounted on the outer wall of the lower end of the guide rod (302); the upper end of the nut (306) is fitted with the lower end of the second positioning ring (304).

6. The high straightness polishing rod according to claim 3, characterized in that: The clamping assembly (4) comprises a sleeve (401), an arc-shaped rubber block (402), an extrusion block (403), a spring (404), a fixing block (405), a second screw groove (406) and a bolt (407); the inner wall of the third groove body (204) is movably provided with the sleeve (401); the sleeve (401) is a hollow cylindrical structure; one end of the sleeve (401) close to the center of the rod body (101) is fixedly connected with the arc-shaped rubber block (402); and one end of the arc-shaped rubber block (402) close to the center of the rod body (101) is in contact with the outer wall of the rod body (101).

7. The high straightness polishing rod according to claim 6, characterized in that: An extrusion block (403) is movably provided on the inner wall of the sleeve (401); one end of the extrusion block (403) close to the center of the rod body (101) is fitted with one end of the arc-shaped rubber block (402) away from the center of the rod body (101); one end of the extrusion block (403) away from the center of the rod body (101) is fixedly connected to a spring (404); one end of the spring (404) away from the center of the rod body (101) is fixedly connected to a fixing block (405); the fixing block (405) is matched with the second groove body (203); one end of the fixing block (405) away from the center of the rod body (101) is penetrated by a second screw groove (406) symmetrically distributed about the center of the fixing block (405); the second screw groove (406) corresponds to the first screw groove (205) one by one; bolts (407) are threadedly installed on the inner walls of the second screw groove (406) and the first screw groove (205).

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