A fixing device for grinding a circular cylinder
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-17
- Publication Date
- 2026-08-11
Smart Images

Figure CN224615874U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of circular cylinder grinding technology, specifically a fixing device for circular cylinder grinding. Background Technology
[0002] Cylindrical parts are widely used in numerous fields such as machinery manufacturing, automotive parts processing, and aerospace, including shafts and transmission rods. Their machining accuracy and quality directly affect the performance and reliability of the entire equipment. Cylindrical grinding, as a key finishing process, aims to improve the dimensional accuracy, shape accuracy, and surface quality of parts to meet the requirements of high-precision assembly and operation. Currently, in traditional grinding processes for cylindrical objects, the process typically involves placing the cylinder on two rotating shafts. Specifically, the cylindrical object to be ground is first placed on two specially designed rotating shafts, and then the drive unit is activated to start the shafts rotating. The rotating shafts, through their rotational power, drive the cylinder to rotate as well. During this continuous rotation, the grinding assembly then grinds the surface of the cylinder.
[0003] However, in actual production applications, this traditional grinding method has revealed many problems. During grinding, the grinding wheel inevitably applies compressive force to the surface of the cylinder. Analyzing the characteristics of the cylinder itself, if the cylinder material lacks uniformity, such as having an uneven surface, then the stress experienced by different parts of the cylinder will vary when subjected to the pressure of the grinding wheel. Uneven stress can cause excessive localized stress on the cylinder, easily leading to warping or displacement. Once the cylinder warps or shifts, it severely reduces the stability and accuracy of the grinding process. Utility Model Content
[0004] To address the problems mentioned in the background art, this utility model provides a fixing device for grinding circular cylinders.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a fixing device for grinding circular cylinders, comprising a main body, a rotating assembly, and a grinding assembly, and further comprising: A fixing mechanism is located on one side of the main body; The fixing mechanism includes a U-shaped block disposed on one side of the main body. A rotating disk is rotatably connected inside the U-shaped block. A connecting column is fixedly installed on one side of the rotating disk. A connecting shell is fixedly installed inside the connecting column. Two abutting plates located on the outer surface of the connecting column are slidably connected inside the connecting shell. A connecting rod is fixedly installed on one side inside the connecting column. Push rods are rotatably connected to both sides of the surface of the connecting rod. A protrusion located inside the push rod is fixedly installed inside the abutting plate. The two abutting plates are elastically connected by an elastic element. A drive assembly is disposed on the surface of the connecting rod.
[0006] Preferably, the driving assembly includes an extrusion block that is slidably sleeved on the surface of the connecting rod, an electric push rod is provided on one side of the extrusion block, the electric push rod is fixedly connected to the connecting rod, and the output shaft of the electric push rod is fixedly connected to the surface of the extrusion block.
[0007] Preferably, it further includes: An adjustment component is disposed on one side of the main body. The adjustment component includes a square shell fixedly connected to one side of the main body, and a U-shaped block located inside the square shell. A motor is fixedly installed at the bottom end of the square shell, and a lead screw located inside the U-shaped block is fixedly installed at the output end of the motor. The U-shaped block and the lead screw are threadedly connected.
[0008] Preferably, it further includes: A limiting component is disposed on one side of the rotating disk. The limiting component includes a slide groove fixedly connected to one side of the rotating disk. A limiting block is slidably connected inside the slide groove. There are two limiting blocks, which are fixedly connected to two abutment plates respectively.
[0009] Preferably, a limiting ring located inside the U-shaped block is fixedly installed on the surface of the other side of the rotating disk, and the surface of the limiting ring is fully in contact with the inner wall of the U-shaped block.
[0010] Preferably, the surface of the connecting column is provided with a square hole, and the push rod can slide inside the square hole.
[0011] Preferably, the surface of the extrusion block is designed with rounded corners and a smooth surface.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention drives an electric push rod to pull the extrusion block across the surface of the connecting rod via its output shaft. This extrusion pushes the push rod to rotate, which in turn pushes two contact plates to move towards each other. As the contact plates move, the elastic element is stretched, and then the two contact plates abut against the inner wall of the column. Finally, by driving the electric push rod, the contact plates abut against the interior of the column, effectively preventing the column from shifting position and greatly improving the stability and accuracy of the grinding operation. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the strabismus device of this utility model; Figure 3 This is a schematic diagram illustrating the fixing mechanism of this utility model; Figure 4 This is a schematic diagram showing the interior of the connecting column of this utility model.
[0014] In the diagram: 1. Main body; 2. Rotating assembly; 3. Grinding assembly; 4. Fixing mechanism; 401. U-shaped block; 402. Rotating disk; 403. Connecting column; 404. Connecting shell; 405. Contact plate; 406. Connecting rod; 407. Push rod; 408. Protrusion; 409. Elastic element; 5. Drive assembly; 501. Electric push rod; 502. Extrusion block; 6. Adjustment assembly; 601. Square shell; 602. Motor; 603. Lead screw; 7. Limiting assembly; 701. Slide groove; 702. Limiting block; 8. Limiting ring. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0016] like Figures 1 to 4 As shown, this utility model provides a fixing device for grinding circular cylinders, including a main body 1, a rotating assembly 2, and a grinding assembly 3, and further includes: Fixing mechanism 4 is located on one side of the main body 1; The fixing mechanism 4 includes a U-shaped block 401 disposed on one side of the main body 1. A rotating disk 402 is rotatably connected inside the U-shaped block 401. A connecting column 403 is fixedly installed on one side of the rotating disk 402. A connecting shell 404 is fixedly installed inside the connecting column 403. Two abutting plates 405 located on the outer surface of the connecting column 403 are slidably connected inside the connecting shell 404. A connecting rod 406 is fixedly installed on one side inside the connecting column 403. Push rods 407 are rotatably connected on both sides of the surface of the connecting rod 406. A protrusion 408 located inside the push rod 407 is fixedly installed inside the abutting plate 405. The two abutting plates 405 are elastically connected by an elastic member 409. Drive assembly 5 is disposed on the surface of connecting rod 406.
[0017] like Figure 4 As shown, the drive assembly 5 includes a pressing block 502 that is slidably sleeved on the surface of the connecting rod 406. An electric push rod 501 is provided on one side of the pressing block 502. The electric push rod 501 is fixedly connected to the connecting rod 406, and the output shaft of the electric push rod 501 is fixedly connected to the surface of the pressing block 502.
[0018] Using the above method: The operator places the cylindrical object to be ground between the two rotating components 2, and fits the object onto the surface of the connecting rod 403. Then, the electric push rod 501 is driven so that its output shaft pulls the pressing block 502 to slide on the surface of the connecting rod 406. During the sliding process, it will contact the surface of the push rod 407 and push the push rod 407 to rotate. During the rotation of the push rod 407, the protrusion 408 will slide inside the push rod 407. Then, the push rod 407 will push the two abutment plates 405 to move towards each other. When the abutment plates 405 move, the spring... The member 409 is stretched, and then the two abutment plates 405 abut against the inner wall of the column, thereby fixing the column. After fixing, the rotating component 2 can be driven to rotate, causing the column to rotate. During the rotation of the column, the connecting column 403 and the rotating disk 402 will rotate inside the U-shaped block 401. During the rotation of the column, the driving component 5 is driven to grind the surface of the column. Finally, the electric push rod 501 is driven to make the abutment plate 405 abut against the inside of the column, effectively preventing the column from shifting position and greatly improving the stability and accuracy of the grinding operation.
[0019] like Figure 3 As shown, it also includes: Adjustment component 6 is disposed on one side of main body 1. Adjustment component 6 includes a square shell 601 fixedly connected to one side of main body 1, and a U-shaped block 401 located inside the square shell 601. A motor 602 is fixedly installed at the bottom end of the square shell 601. A lead screw 603 located inside the U-shaped block 401 is fixedly installed at the output end of the motor 602, and the U-shaped block 401 and the lead screw 603 are threadedly connected.
[0020] Using the above scheme: By adjusting the design of component 6, motor 602 can be driven to rotate lead screw 603. Since lead screw 603 is threadedly connected to U-shaped block 401 and the inner wall of square shell 601 is tightly attached to the surface of U-shaped block 401, an effective limit is formed. Under this action, U-shaped block 401 will move along the surface of lead screw 603, thereby adjusting the position of fixing mechanism 4 to adapt it to circular cylinders of different sizes.
[0021] like Figure 3 and Figure 4 As shown, it also includes: The limiting component 7 is disposed on one side of the rotating disk 402. The limiting component 7 includes a slide groove 701 fixedly connected to one side of the rotating disk 402. The slide groove 701 is slidably connected to a limiting block 702. There are two limiting blocks 702, which are fixedly connected to two abutment plates 405 respectively.
[0022] The above solution is adopted: through the design of the limiting component 7, when the contact plate 405 moves, it will drive the limiting block 702 to slide inside the slide groove 701. Since the limiting block 702 is a T-shaped design and fits against the inner wall of the slide groove 701, it can limit the contact plate 405.
[0023] like Figure 3 As shown, a limiting ring 8 located inside the U-shaped block 401 is fixedly installed on the surface of the other side of the rotating disk 402, and the surface of the limiting ring 8 is fully in contact with the inner wall of the U-shaped block 401.
[0024] The above solution is adopted: through the design of the limiting ring 8, when the rotating disk 402 rotates, it will drive the limiting ring 8 to rotate on the inner wall of the push rod 407. Since the surface of the limiting ring 8 is in contact with the inner wall of the U-shaped block 401, it can limit the rotating disk 402 and prevent the position of the rotating disk 402 from shifting when it rotates.
[0025] like Figure 4 As shown, the surface of the connecting column 403 has a square hole, and the push rod 407 can slide inside the square hole. The surface of the extrusion block 502 has a rounded corner design and a smooth surface design.
[0026] The above solution employs the following design: By connecting the column 403 and the push rod 407, the push rod 407 slides inside the square hole when it rotates, thus preventing the column 403 from interfering with the rotation of the push rod 407. Furthermore, the surface of the push rod 407 fits into the square hole, thereby limiting its position. The extrusion block 502 is designed with rounded corners and a smooth surface, which reduces friction between it and the push rod 407, ensuring that the extrusion block 502 can stably push the push rod 407 to rotate.
[0027] Working principle and usage process of this utility model: First, the operator drives the motor 602 to rotate the lead screw 603, and the U-shaped block 401 moves along the surface of the lead screw 603, thereby adjusting the position of the fixing mechanism 4 to fit the cylinder to be ground. Then, the circular cylinder to be ground is placed between the two rotating components 2, and the cylinder is fitted onto the surface of the connecting column 403. Then, the electric push rod 501 can be driven to pull the extrusion block 502 to slide on the surface of the connecting rod 406, which will squeeze and push the push rod 407 to rotate. The push rod 407 will push the two abutment plates 405 to move towards each other. When the abutment plates 405 move, the elastic element 409 will be stretched. Then, the two abutment plates 405 will abut against the inner wall of the cylinder, thereby fixing the cylinder. After the fixing is completed, the rotating component 2 can be driven to rotate, causing the cylinder to rotate. During the rotation of the cylinder, the connecting column 403 and the rotating disk 402 will rotate inside the U-shaped block 401. During the rotation of the cylinder, the drive component 5 is driven to grind the surface of the cylinder, and finally the operation process is completed.
[0028] 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.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A fixing device for grinding a circular cylinder, comprising a main body (1), a rotating assembly (2), and a grinding assembly (3), characterized in that, Also includes: A fixing mechanism (4) is located on one side of the main body (1); The fixing mechanism (4) includes a U-shaped block (401) disposed on one side of the main body (1). A rotating disk (402) is rotatably connected inside the U-shaped block (401). A connecting column (403) is fixedly installed on one side of the rotating disk (402). A connecting shell (404) is fixedly installed inside the connecting column (403). Two abutting plates (405) located on the outer surface of the connecting column (403) are slidably connected inside the connecting shell (404). A connecting rod (406) is fixedly installed on one side inside the connecting column (403). Push rods (407) are rotatably connected on both sides of the surface of the connecting rod (406). A protrusion (408) located inside the push rod (407) is fixedly installed inside the abutting plate (405). The two abutting plates (405) are elastically connected by an elastic element (409). A drive assembly (5) is disposed on the surface of the connecting rod (406).
2. The fixing device for grinding circular cylinders according to claim 1, characterized in that: The drive assembly (5) includes a pressing block (502) that is slidably sleeved on the surface of the connecting rod (406). An electric push rod (501) is provided on one side of the pressing block (502). The electric push rod (501) is fixedly connected to the connecting rod (406), and the output shaft of the electric push rod (501) is fixedly connected to the surface of the pressing block (502).
3. The fixing device for grinding circular cylinders according to claim 1, characterized in that, Also includes: An adjustment component (6) is disposed on one side of the main body (1). The adjustment component (6) includes a square shell (601) fixedly connected to one side of the main body (1), and a U-shaped block (401) is located inside the square shell (601). A motor (602) is fixedly installed at the bottom end of the square shell (601). A lead screw (603) located inside the U-shaped block (401) is fixedly installed at the output end of the motor (602), and the U-shaped block (401) and the lead screw (603) are threadedly connected.
4. The fixing device for grinding circular cylinders according to claim 1, characterized in that, Also includes: A limiting component (7) is provided on one side of the rotating disk (402). The limiting component (7) includes a slide groove (701) fixedly connected to one side of the rotating disk (402). A limiting block (702) is slidably connected inside the slide groove (701). There are two limiting blocks (702), which are fixedly connected to two abutment plates (405) respectively.
5. The fixing device for grinding circular cylinders according to claim 1, characterized in that: A limiting ring (8) located inside the U-shaped block (401) is fixedly installed on the other side of the rotating disk (402), and the surface of the limiting ring (8) is fully in contact with the inner wall of the U-shaped block (401).
6. The fixing device for grinding circular cylinders according to claim 1, characterized in that: The surface of the connecting column (403) is provided with a square hole, and the push rod (407) can slide inside the square hole.
7. The fixing device for grinding circular cylinders according to claim 2, characterized in that: The surface of the extrusion block (502) is designed with rounded corners and a smooth surface.