Clamping mechanism for numerical control machine tool machining
By designing a clamping mechanism for CNC machine tool processing, a conical head clamps and rotates the pipe fittings, solving the problem of CNC machine tools needing to disassemble and assemble fixtures multiple times, and achieving efficient grinding of pipe fittings.
Patent Information
- Application Number
- CN202423277805.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2034-12-30
AI Technical Summary
When CNC machine tools are used to process pipe fittings, the fixtures need to be disassembled and reassembled multiple times to complete the grinding, resulting in low processing efficiency.
A clamping mechanism for CNC machine tool processing was designed. It clamps the pipe fitting with a conical head and drives it to rotate, so as to realize the overall clamping and grinding of the pipe fitting and avoid re-fixing.
This allows for one-time grinding of pipe fittings, improving processing efficiency.
Smart Images

Figure CN223863566U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machine tool processing technology, specifically a clamping mechanism for CNC machine tool processing. Background Technology
[0002] CNC machine tools, also known as numerical control machine tools, are automated machine tools equipped with a program control system that can automatically process parts according to the shape and size required by the drawings based on the code.
[0003] Currently, when CNC machine tools grind pipes, the pipes need to be removed from the fixture, turned around, and re-clamped before they can be fully ground. This prevents the grinding from being completed in one go, thus reducing processing efficiency.
[0004] To address the above problems, this utility model provides a clamping mechanism for CNC machine tool processing. Utility Model Content
[0005] The purpose of this utility model is to provide a clamping mechanism for CNC machine tool processing, which can effectively clamp the pipe and complete the grinding in one go without re-fixing the pipe, thereby improving the grinding efficiency and solving the problems in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a clamping mechanism for CNC machine tool processing, including a base, with support plates symmetrically fixed on both sides of the upper end of the base, and slide plates symmetrically arranged between the two support plates. A bidirectional threaded screw is inserted inside the lower end of the two slide plates, and a first motor is provided at the end of the bidirectional threaded screw. A rotatable first sleeve and a second sleeve are symmetrically arranged inside the upper end of the two support plates, and conical heads are symmetrically fixed at opposite ends of the first sleeve and the second sleeve. A second motor is provided on the outside of the support plates, and the second motor can drive the second sleeve to rotate.
[0007] Furthermore, the inside and sides of the two support plates are respectively connected to a rotating shaft via bearings and a fixed shaft is fixedly connected. The inner side of the first sleeve is fitted onto the outer side of the fixed shaft. Several evenly distributed protrusions are fixedly arranged circumferentially on the outer side of the rotating shaft. Several evenly distributed grooves are opened on the inner side of the second sleeve. The protrusions are slidably connected to the inner surface of the grooves. The inner surface of the second sleeve is slidably connected to the outer surface of the rotating shaft. The outer sides of the first sleeve and the second sleeve are rotatably connected to the upper end of the corresponding slide plate via bearings.
[0008] Furthermore, the bidirectional threaded screw is internally threaded to the lower end of the two side slides, the first motor is fixedly mounted on the outer surface of the support plate and its output end extends and is fixedly connected to the end of the bidirectional threaded screw, and the outer side of the bidirectional threaded screw away from the first motor is rotatably connected to the corresponding support plate through a bearing.
[0009] Furthermore, a gear ring is fixedly installed on the outer side of the shaft near the end of the support plate, and a mounting plate is provided on the upper end of the shaft. The mounting plate is fixed on the side of the support plate, and a second motor is fixedly installed on the bottom end of the mounting plate. A gear is fixedly installed on the output end of the second motor, and the gear ring and the gear are meshed with each other.
[0010] Furthermore, the tapered head has anti-slip textured surfaces.
[0011] Furthermore, bolts are threaded onto the inside of both sides of the base.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] This utility model provides a clamping mechanism for CNC machine tool processing. A base is installed on the CNC machine tool worktable. A pipe is then horizontally placed between two tapered heads. A first motor drives a bidirectional threaded screw to rotate, causing the two sliding plates to move synchronously towards each other. This, in turn, causes the two tapered heads to move synchronously towards each other. The tapered surfaces of the two tapered heads insert and engage with the inner sides of both ends of the pipe, clamping it tightly and forming a unified structure between the pipe and the tapered heads. A second motor then drives a second sleeve to rotate, causing the corresponding tapered head to rotate, thereby rotating the pipe. The CNC machine tool then uniformly grinds the outer surface of the pipe. The purpose of this design is to complete the grinding process in one go by effectively clamping the pipe, eliminating the need to re-fix the pipe and improving grinding efficiency. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the planar structure of the present invention;
[0016] Figure 3 This is a schematic diagram of the internal structure of the first sleeve in this utility model;
[0017] Figure 4 This is a schematic diagram of the internal structure of the second sleeve in this utility model.
[0018] In the diagram: 1. Base; 2. Support plate; 3. Two-way threaded screw; 4. First motor; 5. Slide plate; 6. First sleeve; 7. Second sleeve; 8. Conical head; 9. Fixed shaft; 10. Rotating shaft; 11. Protruding plate; 12. Groove; 13. Gear ring; 14. Gear; 15. Second motor; 16. Mounting plate; 17. Bolt. Detailed Implementation
[0019] 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.
[0020] To solve the problem of how to effectively refine the technology, such as Figure 1-4 As shown, the following preferred technical solutions are provided:
[0021] A clamping mechanism for CNC machine tool processing includes a base 1. Support plates 2 are symmetrically fixed on both sides of the upper end of the base 1. Slide plates 5 are symmetrically arranged between the two support plates 2. A bidirectional threaded screw 3 is inserted inside the lower end of the slide plates 5. A first motor 4 is provided at the end of the bidirectional threaded screw 3. A rotatable first sleeve 6 and a second sleeve 7 are symmetrically arranged inside the upper end of the two support plates 2. A conical head 8 is symmetrically fixed at the opposite ends of the first sleeve 6 and the second sleeve 7. A second motor 15 is provided on the outside of the support plates 2. The second motor 15 can drive the second sleeve 7 to rotate.
[0022] Specifically, the base 1 is installed on the CNC machine tool worktable, and the pipe is then placed horizontally between the two conical heads 8. The first motor 4 drives the bidirectional threaded screw 3 to rotate, causing the two sliding plates 5 to move synchronously towards each other, which in turn causes the two conical heads 8 to move synchronously towards each other. The conical surfaces of the two conical heads 8 insert and engage with the inner sides of both ends of the pipe, clamping the pipe and forming a single unit with the conical heads 8. Then, the second motor 15 drives the second sleeve 7 to rotate, causing the corresponding conical head 8 to rotate, thus rotating the pipe. The outer surface of the pipe is then uniformly ground by the CNC machine tool. The purpose of this design is to complete the grinding in one go by effectively clamping the pipe, eliminating the need to re-fix the pipe and improving grinding efficiency.
[0023] Furthermore, such as Figure 1-4 As shown, the following preferred technical solutions are provided:
[0024] The inner and outer sides of the two support plates 2 are respectively connected to the rotating shaft 10 and the fixed shaft 9 via bearings. The inner side of the first sleeve 6 is fitted onto the outer side of the fixed shaft 9. Several evenly distributed protrusions 11 are fixedly provided on the outer circumference of the rotating shaft 10. Several evenly distributed grooves 12 are opened on the inner side of the second sleeve 7. The protrusions 11 are slidably connected to the inner surface of the grooves 12. The inner surface of the second sleeve 7 is slidably connected to the outer surface of the rotating shaft 10. The outer sides of the first sleeve 6 and the second sleeve 7 are rotatably connected to the upper end of the corresponding slide plate 5 via bearings. The purpose of this design is to ensure that the rotating shaft 10 can drive the second sleeve 7 to rotate synchronously, and the first sleeve 6 and the second sleeve 7 can rotate relative to the slide plate 5.
[0025] Furthermore, such as Figure 1-4 As shown, the following preferred technical solutions are provided:
[0026] The bidirectional threaded screw 3 is internally threaded to the lower end of the two side slide plates 5. The first motor 4 is fixedly installed on the outer surface of the support plate 2 and its output end extends and is fixedly connected to the end of the bidirectional threaded screw 3. The outer side of the bidirectional threaded screw 3 away from the first motor 4 is rotatably connected to the corresponding support plate 2 through a bearing. The purpose of this design is that the first motor 4 drives the bidirectional threaded screw 3 to rotate, thereby driving the two side slide plates 5 to move synchronously towards or away from each other, and thus driving the two side tapered heads 8 to move synchronously.
[0027] Furthermore, such as Figure 1 and Figure 2 As shown, the following preferred technical solutions are provided:
[0028] A gear ring 13 is fixedly installed on the outer side of the shaft 10 near the end of the support plate 2. A mounting plate 16 is provided on the upper end of the shaft 10 and is fixed on the side of the support plate 2. A second motor 15 is fixedly installed on the bottom end of the mounting plate 16. A gear 14 is fixedly installed on the output end of the second motor 15. The gear ring 13 and the gear 14 are meshed with each other. The purpose of this design is that the second motor 15 drives the gear 14 to rotate, and through meshing with the gear ring 13, drives the shaft 10 to rotate, thereby driving the second sleeve 7 to rotate relative to the slide plate 5.
[0029] Furthermore, such as Figure 1 As shown, the following preferred technical solutions are provided:
[0030] The tapered head 8 has anti-slip textured surfaces, which is designed to improve the clamping stability of the tapered head 8 on the pipe fitting.
[0031] Furthermore, such as Figure 1 As shown, the following preferred technical solutions are provided:
[0032] Both sides of the base 1 are threaded with bolts 17. The purpose of this design is to install the base 1 on the CNC machine tool worktable using bolts 17.
[0033] In summary: The base 1 is installed on the CNC machine tool worktable. The pipe fitting is then horizontally placed between the two tapered heads 8. The first motor 4 drives the bidirectional threaded screw 3 to rotate, causing the two sliding plates 5 to move synchronously towards each other. This, in turn, causes the two tapered heads 8 to move synchronously towards each other. The tapered surfaces of the two tapered heads 8 insert and engage with the inner sides of both ends of the pipe fitting, clamping it tightly and forming a single unit with the pipe fitting and tapered heads 8. Then, the second motor 15 drives the second sleeve 7 to rotate, causing the corresponding tapered head 8 to rotate, thus rotating the pipe fitting. The outer surface of the pipe fitting is then uniformly ground by the CNC machine tool. The purpose of this design is to complete the grinding process in one go by effectively clamping the pipe fitting, eliminating the need to re-fix the pipe fitting and improving grinding efficiency.
[0034] 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.
[0035] 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 clamping mechanism for CNC machine tool processing, characterized in that: The base (1) includes a base, on which support plates (2) are symmetrically fixed on both sides of the upper end of the base (1). Slide plates (5) are symmetrically arranged between the two support plates (2). A bidirectional threaded screw (3) is inserted inside the lower end of the slide plates (5). A first motor (4) is provided at the end of the bidirectional threaded screw (3). A rotatable first sleeve (6) and a second sleeve (7) are symmetrically arranged inside the upper end of the two support plates (2). A conical head (8) is symmetrically fixed at the opposite ends of the first sleeve (6) and the second sleeve (7). A second motor (15) is provided on the outside of the support plate (2). The second motor (15) can drive the second sleeve (7) to rotate.
2. The clamping mechanism for CNC machine tool processing according to claim 1, characterized in that: The support plates (2) on both sides are rotatably connected to a rotating shaft (10) and fixedly connected to a fixed shaft (9) via bearings. The inner side of the first sleeve (6) is sleeved on the outer side of the fixed shaft (9). Several evenly distributed protrusions (11) are fixedly arranged on the outer circumference of the rotating shaft (10). Several evenly distributed grooves (12) are opened on the inner side of the second sleeve (7). The protrusions (11) are slidably connected to the inner surface of the grooves (12). The inner surface of the second sleeve (7) is slidably connected to the outer surface of the rotating shaft (10). The outer sides of the first sleeve (6) and the second sleeve (7) are rotatably connected to the upper end of the corresponding slide plate (5) via bearings.
3. The clamping mechanism for CNC machine tool processing according to claim 1, characterized in that: The bidirectional threaded screw (3) is internally threaded to the lower end of the two side slide plates (5). The first motor (4) is fixedly installed on the outer side of the support plate (2) and its output end extends and is fixedly connected to the end of the bidirectional threaded screw (3). The outer side of the bidirectional threaded screw (3) away from the first motor (4) is rotatably connected to the corresponding support plate (2) through a bearing.
4. A clamping mechanism for CNC machine tool processing according to claim 2, characterized in that: A gear ring (13) is fixedly installed on the outer side of the shaft (10) near the end of the support plate (2). A mounting plate (16) is provided on the upper end of the shaft (10). The mounting plate (16) is fixed on the side of the support plate (2). A second motor (15) is fixedly installed at the bottom end of the mounting plate (16). A gear (14) is fixedly installed at the output end of the second motor (15). The gear ring (13) and the gear (14) are meshed and connected to each other.
5. A clamping mechanism for CNC machine tool processing according to claim 1, characterized in that: The conical head (8) has anti-slip textured surfaces.
6. A clamping mechanism for CNC machine tool processing according to claim 1, characterized in that: Both sides of the base (1) are threaded with bolts (17).