Grinding device for inner hole of cardan shaft
By designing a universal joint inner hole grinding device with adjustable clamping plate and dust removal components, the problem of existing devices being unable to clamp universal joints of different sizes and causing metal shavings pollution has been solved, achieving stable clamping and environmental optimization.
Patent Information
- Application Number
- CN202423221423.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Existing universal joint internal hole grinding equipment cannot clamp universal joints of different sizes, and generates metal particles during the grinding process, which pollutes the working environment and affects health.
A universal joint inner hole grinding device was designed, which adopts an adjustable clamping plate and a dust removal component. The clamping plate slider moves in the slide rail to achieve stable clamping of universal joints of different diameters, and the atomizing nozzle is used to adsorb metal debris to avoid pollution.
It achieves stable clamping of universal joints of different thicknesses, improves the applicability and working efficiency of the device, effectively handles metal scraps, optimizes the production environment, and protects the health of workers.
Smart Images

Figure CN223588954U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grinding equipment technology, specifically a universal joint internal hole grinding device. Background Technology
[0002] A universal joint internal bore grinding unit is a specialized piece of equipment primarily used for the precise grinding of the internal bore of universal joints to improve their machining accuracy and performance. The design of this unit incorporates adaptability and stability. As a highly efficient and precise machining tool, it is of great significance for enhancing the machining quality and performance of universal joints.
[0003] The patent publication number "CN214817149U" discloses a "grinding device for bearing inner rings", which includes a main body. The main body is a horizontally placed trapezoid. Telescopic rods are fixedly connected to the four corners of the bottom of the main body. First limiting bolts are fixedly connected to the surface of the telescopic rods. Universal wheels are fixedly connected to the bottom of the telescopic rods. A door is provided on the surface of the main body and is hinged. One end of the door is provided with a handle. A storage compartment is provided on the right side of the main body, and storage compartments at the same level are grouped together. A collection compartment is provided on the left side of the main body. A bearing seat is provided at the center of the top of the main body.
[0004] This device facilitates the grinding of the bearing inner ring through an electric push rod and slide, eliminating the need for manual grinding, reducing energy waste, and improving work efficiency. However, the device cannot clamp universal joints of different sizes, which affects its applicability and is not conducive to grinding work. At the same time, metal particles are generated during grinding, which can cause pollution of the working environment and lead to health problems for workers.
[0005] Therefore, this utility model provides a universal joint inner hole grinding device to solve the above problems. Utility Model Content
[0006] To address the shortcomings of existing technologies, this utility model provides a universal joint inner hole grinding device, which solves the above-mentioned problems.
[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a universal joint inner hole grinding device, including a support assembly for support, the support assembly including a table, a support plate fixedly connected to one corner of the upper surface of the table, a circular telescopic rod end fixedly connected to the side surface of the support plate, a clamping plate fixedly connected to the top of the circular telescopic rod, and the lower surface of the clamping plate fixedly connected to the upper surface of the table.
[0008] Furthermore, there are two clamping plates with corresponding openings. A slide is provided on the upper surface of the table, and a slider is slidably connected to the inner wall of the slide. The upper surface of the slider is fixedly connected to the lower surface of the clamping plate.
[0009] Using the above technical solution, universal shafts of different thicknesses can be clamped by closing two identical clamping plates, and the movement of the slider on the lower surface of the clamping plate within the slide rail ensures that the movement of the clamping plate will not be misaligned.
[0010] Furthermore, a square hole is provided on the upper surface of the table, and a water storage tank is movably connected to the inner wall of the square hole. A support column is fixedly connected to the upper surface of the right side of the table.
[0011] Using the above technical solution, the movable connection between the water storage tank and the square hole facilitates the removal and cleaning of the water storage tank.
[0012] Furthermore, a dust removal component is provided on the rear side of the table surface. The dust removal component includes a water tank. A water inlet is provided on the upper surface of the water tank. A water pipe is fixedly connected to the right side surface of the water inlet. An atomizing nozzle is fixedly connected to the end of the water pipe. A support rod is fixedly connected between the water pipe and the table.
[0013] By adopting the above technical solution, the water storage tank can also act as a barrier to make the rear clamping plate more stable.
[0014] Furthermore, there are two support columns, and a grinding assembly is provided between the two support columns. The grinding assembly includes two side plates, and a connecting block is slidably connected between the two side plates. A limit bolt is fixedly connected to the lower end of the connecting block, and a limit plate is fixedly connected to the top end of the connecting block.
[0015] Using the above technical solution, the connecting block can slide in the gap formed between the two side plates, and the limiting plate prevents the connecting block from falling due to gravity.
[0016] Furthermore, a rotating cylinder is rotatably connected to the side surface of the limiting bolt, and a square telescopic rod is fixedly connected to the side surface of the rotating cylinder.
[0017] Using the above technical solution, the grinding depth is adjusted by extending and retracting the square telescopic rod.
[0018] Furthermore, a protective shell is fixedly connected to the output end of the square telescopic rod, a motor is fixedly connected to the inner wall of the protective shell, the output shaft of the motor moves through the protective shell, and a grinding column is fixedly connected to the top of the motor output shaft.
[0019] By adopting the above technical solution, the motor is protected from atomized water by the protective shell, which would reduce the motor's lifespan.
[0020] Beneficial effects
[0021] This utility model provides a universal joint internal hole grinding device. Compared with the prior art, it has the following advantages:
[0022] Beneficial effects:
[0023] 1. This universal joint internal hole grinding device involves placing the universal joint between two clamping plates and then activating a circular telescopic rod. The telescopic rod pushes the slider inward, causing it to move along the slide along the clamping plates until the two clamping plates clamp the universal joint. This allows the device to easily clamp universal joints of different thicknesses, avoiding the problem of the device being unable to clamp universal joints of different thicknesses. This improves the practicality of the device, makes it easier to use, and increases work efficiency.
[0024] 2. This universal joint internal hole grinding device, when the grinding component is working, opens the atomizing nozzle, and the metal debris generated by the friction between the grinding column and the universal joint is absorbed by the water droplets sprayed from the atomizing nozzle and falls into the water storage tank. This allows the metal debris generated during processing to be disposed of in a timely manner, avoiding pollution of the production environment by metal debris, and achieving the beneficial effect of optimizing the production environment and protecting the health of the workers. Attached Figure Description
[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0026] Figure 1 This is a perspective view of the external structure of this utility model;
[0027] Figure 2 This is a right view of the structure of this utility model;
[0028] Figure 3 This is a left view of the structure of this utility model;
[0029] Figure 4 This is a top view of the structure of this utility model.
[0030] In the diagram: 1. Support assembly; 101. Table; 102. Support plate; 103. Slide rail; 104. Slider; 105. Circular telescopic rod; 106. Clamping plate; 107. Square hole; 108. Water tank; 109. Support column; 2. Grinding assembly; 201. Side plate; 202. Connecting block; 203. Limit bolt; 204. Rotating cylinder; 205. Limiting plate; 206. Square telescopic rod; 207. Protective shell; 208. Motor; 209. Grinding column; 3. Dust removal assembly; 301. Water tank; 302. Water inlet; 303. Water pipe; 304. Atomizing nozzle; 305. Support rod. Detailed Implementation
[0031] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0032] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.
[0033] Reference Figures 1 to 4 This application provides a universal joint internal hole grinding device, including a support assembly 1 for support. The support assembly 1 includes a table 101, a support plate 102 fixedly connected to one corner of the upper surface of the table 101, a circular telescopic rod 105 fixedly connected to the end of the side surface of the support plate 102, a clamping plate 106 fixedly connected to the top of the circular telescopic rod 105, and the lower surface of the clamping plate 106 fixedly connected to the upper surface of the table 101. There are two clamping plates 106 with corresponding openings. A slide rail 103 is provided on the upper surface of the table 101, and a slider 104 is slidably connected to the inner wall of the slide rail 103. The upper surface of the slider 104 is fixedly connected to the lower surface of the clamping plate 106.
[0034] In this embodiment, the support plate 102 is fixed on the table 101 to facilitate the extension and retraction of the circular telescopic rod 105, which causes the clamping plate 106 to move accordingly. The slider 104 on the lower surface of the outer clamping plate 106 moves together in the slide rail 103.
[0035] Reference Figures 1 to 4In one aspect of this embodiment, a square hole 107 is provided on the upper surface of the table 101, a water storage tank 108 is movably connected to the inner wall of the square hole 107, and a support column 109 is fixedly connected to the upper right surface of the table 101.
[0036] In this embodiment, the universal joint is placed between two clamping plates 106, and then the circular telescopic rod 105 is activated. The circular telescopic rod 105 pushes the slider 104 inward, which moves with the clamping plates 106 in the slide rail 103 until the two clamping plates 106 clamp the universal joint. This allows the device to easily clamp universal joints of different thicknesses, avoiding the problem that the device cannot clamp universal joints of different thicknesses. This achieves the beneficial effects of improving the practicality of the device, making it easier to use and improving work efficiency.
[0037] Reference Figures 1 to 4 In one aspect of this embodiment, a dust removal component 3 is provided on the rear side of the upper surface of the table 101. The dust removal component 3 includes a water tank 301. A water inlet 302 is provided on the upper surface of the water tank 301. A water pipe 303 is fixedly connected to the right side surface of the water inlet 302. An atomizing nozzle 304 is fixedly connected to the end of the water pipe 303. A support rod 305 is fixedly connected between the water pipe 303 and the table 101.
[0038] In this embodiment, the support rod 305 supports the water pipe 303 at an angle, and when the atomizing nozzle 304 is turned on, the water in the water tank 301 will flow along the water pipe 303 to the atomizing nozzle 304 and then be sprayed out.
[0039] Reference Figures 1 to 4 In one aspect of this embodiment, there are two support columns 109, and a grinding assembly 2 is provided between the two support columns 109. The grinding assembly 2 includes two side plates 201, and a connecting block 202 is slidably connected between the two side plates 201. A limit bolt 203 is fixedly connected to the lower end of the connecting block 202, and a limit plate 205 is fixedly connected to the top end of the connecting block 202.
[0040] In this embodiment, the gap between the two side plates 201 allows the connecting block 202 to slide within it, and the limiting plate 205 at the top of the connecting block 202 prevents the sliding block from falling when it slides.
[0041] Reference Figures 1 to 4 In one aspect of this embodiment, a rotating cylinder 204 is rotatably connected to the side surface of the limiting bolt 203, and a square telescopic rod 206 is fixedly connected to the side surface of the rotating cylinder 204. A protective shell 207 is fixedly connected to the output end of the square telescopic rod 206, and a motor 208 is fixedly connected to the inner wall of the protective shell 207. The output shaft of the motor 208 movably passes through the protective shell 207, and a grinding column 209 is fixedly connected to the top end of the output shaft of the motor 208.
[0042] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0043] Working principle: When the grinding component 2 is working, the atomizing nozzle 304 is turned on. The metal debris generated by the friction between the grinding column 209 and the universal joint is absorbed by the water droplets sprayed from the atomizing nozzle 304 and falls into the water storage tank 108. This allows the metal debris generated during processing to be disposed of in a timely manner, avoiding pollution of the production environment by metal debris, and achieving the beneficial effect of optimizing the production environment and protecting the health of the staff.
[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0045] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A device for grinding the bore of a cardan shaft, comprising a support assembly (1) for support, characterized in that: The support assembly (1) includes a table (101), and one corner of the upper surface of the table (101) is fixedly connected with a support plate (102), the side surface of the support plate (102) is fixedly connected with the tail end of a circular telescopic rod (105), the top end of the circular telescopic rod (105) is fixedly connected with a clamping plate (106), and the lower surface of the clamping plate (106) is fixedly connected to the upper surface of the table (101).
2. A device for grinding the bore of a universal shaft according to claim 1, characterized in that: The clamping plate (106) is provided in a pair, the clamping plates (106) are correspondingly arranged at the openings, the upper surface of the table (101) is provided with a slide (103), the inner wall of the slide (103) is slidably connected with a sliding block (104), and the upper surface of the sliding block (104) is fixedly connected to the lower surface of the clamping plate (106).
3. A device for grinding the bore of a universal shaft according to claim 1, characterized in that: The upper surface of the table (101) is provided with a square hole (107), the inner wall of the square hole (107) is movably connected with a water storage tank (108), and the right side of the upper surface of the table (101) is fixedly connected with a support column (109).
4. The universal shaft bore grinding apparatus according to claim 1, wherein: The rear side of the upper surface of the table (101) is provided with a dust removal assembly (3), the dust removal assembly (3) includes a water storage tank (301), the upper surface of the water storage tank (301) is provided with a water inlet (302), the right side surface of the water inlet (302) is fixedly connected with a water pipe (303), the tail end of the water pipe (303) is fixedly connected with an atomizing nozzle (304), and the water pipe (303) and the table (101) are fixedly connected with a support rod (305).
5. A device for grinding the bore of a universal shaft according to claim 3, characterized in that: The support column (109) is provided in a pair, and a polishing assembly (2) is arranged between the two support columns (109), the polishing assembly (2) includes a side plate (201), the side plate (201) is provided in a pair, and the two side plates (201) are slidably connected with a connecting block (202), the lower end of the connecting block (202) is fixedly connected with a limiting bolt (203), and the top end of the connecting block (202) is fixedly connected with a limiting plate (205).
6. A device for grinding the bore of a universal shaft according to claim 5, characterized in that: The side surface of the limiting bolt (203) is rotatably connected with a rotating cylinder (204), and the side surface of the rotating cylinder (204) is fixedly connected with a square telescopic rod (206).
7. A universal shaft bore grinding device according to claim 6, characterized in that: The output end of the square telescopic rod (206) is fixedly connected with a protective shell (207), the inner wall of the protective shell (207) is fixedly connected with a motor (208), the output shaft of the motor (208) movably penetrates the protective shell (207), and the top end of the output shaft of the motor (208) is fixedly connected with a polishing column (209).
Citation Information
Patent Citations
Bearing inner ring grinding device
CN214817149U