Sliding structure for square ram of numerical control machine tool
By setting a square cavity and a transmission screw structure in the square slide of the CNC machine tool, the contact area is increased, which solves the problem of small contact area between the square slide and the guide rail, achieves stronger load-bearing capacity and higher movement accuracy, and ensures the stable operation of the CNC machine tool.
Patent Information
- Application Number
- CN202422940639.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-30
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-11-30
AI Technical Summary
The contact area between the square slide and the guide rail of the CNC machine tool is small, and the force is concentrated, which leads to accelerated wear, offset and sideslip, affecting the processing accuracy.
A sliding structure with a square cavity inside the slide is adopted. The transmission screw drives the square ram to slide along the inner wall of the cavity. The four side walls slide in close contact. Combined with the guide rod and gasket, the contact area is increased, the force is evenly distributed, and deviation and side sliding are prevented.
The load-bearing capacity and anti-vibration performance of the square slide are improved, the operation stability and movement accuracy are ensured, wear is prevented and costs are reduced.
Smart Images
Figure CN223418904U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to numerical control machine tool technical field especially relates to a kind of sliding structure for numerical control machine tool square ram. BACKGROUND
[0002] Numerical control machine tool is the abbreviation of digital control machine tool, it is a kind of automatic machine tool equipped with program control system, the control system can logically process the program with control code or other symbolic instruction specification, control machine tool action, according to the shape and size required by drawing, automatically process parts.
[0003] The square ram of numerical control machine tool is usually installed on guide rail, can reciprocate along guide rail, to drive the cutter on square ram to move, process workpiece. However, the load of numerical control machine tool is larger, the contact area between square ram and guide rail is small, stress concentration, guide rail wears and tears accelerate, even can produce deviation and sideslip, unstable operation, affect precision. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a kind of sliding structure for numerical control machine tool square ram, square ram carrying capacity is strong, anti-vibration performance is good, run smoothly, moving precision is high.
[0005] The utility model discloses a kind of sliding structure for numerical control machine tool square ram, and the technical scheme it uses is:
[0006] A kind of sliding structure for numerical control machine tool square ram, including slide, the slide is opened in the cavity that penetrates both ends, the cavity is equipped with square ram, the cross-sectional shape of the cavity and the cross-sectional shape of square ram are all square, and the four side walls of the square ram are respectively slidably attached to the four inner walls of the cavity, transmission screw rod is rotationally arranged on the slide, the transmission screw rod is arranged along the length direction of square ram, one end of the transmission screw rod is transmissionally connected with screw rod motor, the peripheral wall of the transmission screw rod is threadedly equipped with screw rod seat, and the screw rod seat is fixedly connected with the side wall of square ram.
[0007] As a preferred scheme, the two side walls at the corner of the square ram are respectively slidably attached to the two inner walls at the corner of the cavity.
[0008] As a preferred scheme, the two side walls at the corner of the square ram are both attached to gasket.
[0009] As a preferred scheme, the slide is provided with guide rod, the guide rod is arranged along the length direction of transmission screw rod, the side wall of the square ram is fixedly provided with sliding sleeve, and the sliding sleeve is slidably sleeved on the peripheral wall of the guide rod.
[0010] As a preferred scheme, the square is rectangle or square.
[0011] As a preferred solution, a main shaft is rotatably provided inside the square slide, and the main shaft is arranged along the length direction of the square slide. A drive motor is provided at the top of the square slide, and the output end of the drive motor is transmission-connected to the top of the main shaft. A tool holder is rotatably provided at the bottom end of the square slide, and the tool holder is transmission-connected to the bottom end of the main shaft.
[0012] As a preferred solution, the tool holder and the main shaft are connected via a coupling.
[0013] The beneficial effects of the sliding structure of the square slide for a CNC machine tool disclosed by the utility model are as follows: a screw motor drives the transmission screw to rotate, thereby driving the square slide to slide back and forth along the inner wall of the slide cavity, and the four side walls of the square slide slide respectively against the four inner walls of the cavity. Compared with the sliding connection between the two sides of the square slide and the guide rails, the contact area between the square slide and the slide is larger, the load-bearing capacity is stronger, the force is more uniform, the vibration resistance is good, the deviation and side slip can be prevented, the operation is smooth, and the movement accuracy is high. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 The utility model is a structural schematic diagram of a sliding structure for a square ram of a CNC machine tool.
[0015] Figure 2 The utility model is a cross-sectional schematic diagram of a sliding structure for a square ram of a CNC machine tool.
[0016] 10. Slide; 11. Transmission screw; 12. Screw motor; 13. Screw seat; 14. Guide rod; 20. Square slide; 21. Gasket; 22. Sleeve; 23. Spindle; 24. Drive motor; 25. Tool holder; 26. Coupling. DETAILED DESCRIPTION
[0017] The present invention will be further described and explained below in conjunction with specific embodiments and accompanying drawings:
[0018] Please refer to Figure 1 and Figure 2 A sliding structure for a square slide of a CNC machine tool includes a slide 10. A cavity running through both ends is opened in the slide 10. A square slide 20 is arranged in the cavity. The cross-sectional shape of the cavity and the cross-sectional shape of the square slide 20 are both square, and the four side walls of the square slide 20 are respectively slidably attached to the four inner walls of the cavity. A transmission screw 11 is rotatably provided on the slide 10. The transmission screw 11 is arranged along the length direction of the square slide 20. One end of the transmission screw 11 is transmission-connected to a screw motor 12. A screw seat 13 is provided on the peripheral wall thread sleeve of the transmission screw 11. The screw seat 13 is fixedly connected to the side wall of the square slide 20.
[0019] In the above scheme, the screw motor 12 drives the transmission screw 11 to rotate, thereby driving the square slide 20 to slide back and forth along the inner wall of the cavity of the slide 10, and the four side walls of the square slide 20 slide along the four inner walls of the cavity respectively. Compared with the sliding connection between the two sides of the square slide 20 and the guide rail, the contact area between the square slide 20 and the slide 10 is larger, the load-bearing capacity is stronger, the force is more uniform, the vibration resistance is good, the displacement and side slip can be prevented, the operation is stable, and the movement precision is high.
[0020] Please refer to Figure 2 The two side walls at the corners of the square ram 20 slide in contact with the two inner walls at the corners of the cavity, respectively. Both sides of the four side walls of the square ram 20 slide in contact with the corresponding inner walls of the cavity. The four side walls of the square ram 20 slide simultaneously along the inner walls of the corresponding cavity, providing a good limiting effect and uniform force, thereby preventing offset and side sliding and ensuring smooth operation. Furthermore, gaskets 21 are attached to the two side walls at the corners of the square ram 20. The gaskets 21 can protect the side walls of the square ram 20, preventing direct wear on the side walls of the square ram 20. If the gaskets 21 are severely worn, they can be directly replaced, reducing costs. Furthermore, in this embodiment, the square is a rectangle or a square.
[0021] Please refer to Figure 1 and Figure 2 The slide 10 is provided with a guide rod 14, which is arranged along the length of the transmission screw 11. The side wall of the square ram 20 is fixed with a sliding sleeve 22, which is slidably mounted on the peripheral wall of the guide rod 14. During the sliding process of the square ram 20, the sliding sleeve 22 also slides along the peripheral wall of the guide rod 14. The guide rod 14 has the function of limiting and guiding, improving the stability of the square ram 20 during the sliding process.
[0022] Please refer to Figure 1 and Figure 2 A main shaft 23 is rotatably provided in the square ram 20 and is arranged along the length direction of the square ram 20. A drive motor 24 is provided at the top end of the square ram 20, and the output end of the drive motor 24 is transmission-connected to the top end of the main shaft 23. A tool holder 25 is rotatably provided at the bottom end of the square ram 20 and is transmission-connected to the bottom end of the main shaft 23. Specifically, the tool holder 25 and the main shaft 23 are transmission-connected via a coupling 26.
[0023] In the above scheme, the tool is installed at the bottom end of the tool holder 25, the drive motor 24 drives the spindle 23 to rotate, and the spindle 23 drives the tool holder 25 to rotate, so that the tool can process the workpiece, and the spindle 23 and the tool holder 25 are connected by the coupling 26 to rotate together, preventing the tool holder 25 from bearing excessive load, thereby playing the role of overload protection.
[0024] The utility model provides a sliding structure for a square slide of a CNC machine tool. A screw motor drives a transmission screw to rotate, thereby driving the square slide to slide back and forth along the inner wall of the slide cavity, and the four side walls of the square slide slide respectively against the four inner walls of the cavity. Compared with the sliding connection between the two sides of the square slide and the guide rails, the contact area between the square slide and the slide is larger, the load-bearing capacity is stronger, the force is more uniform, the vibration resistance is good, the deviation and side slip can be prevented, the operation is smooth, and the movement precision is high.
[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the scope of protection of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.
Claims
1. A sliding structure for a square ram of a CNC machine tool, characterized in that: It includes a slide, a cavity running through both ends is opened in the slide, a square slide is provided in the cavity, the cross-sectional shape of the cavity and the cross-sectional shape of the square slide are both square, and the four side walls of the square slide are respectively slid against the four inner walls of the cavity, a transmission screw is rotatably provided on the slide, the transmission screw is arranged along the length direction of the square slide, one end of the transmission screw is connected to a screw motor, a screw seat is provided on the peripheral wall thread sleeve of the transmission screw, and the screw seat is fixedly connected to the side wall of the square slide.
2. A sliding structure for a square ram of a CNC machine tool according to claim 1, characterized in that: The two side walls at the corners of the square ram are respectively slidably attached to the two inner walls at the corners of the cavity.
3. A sliding structure for a square ram of a CNC machine tool according to claim 2, characterized in that: Gaskets are attached to both side walls at the corners of the square ram.
4. The sliding structure for a square ram of a CNC machine tool according to claim 1, characterized in that: The slide is provided with a guide rod, which is arranged along the length direction of the transmission screw rod. The side wall of the square slide is fixed with a sliding sleeve, which is slidably sleeved on the peripheral wall of the guide rod.
5. The sliding structure for a square ram of a CNC machine tool according to claim 1, characterized in that: The square is a rectangle or a square.
6. The sliding structure for a square ram of a CNC machine tool according to claim 1, characterized in that: A main shaft is rotatably provided inside the square slide, and the main shaft is arranged along the length direction of the square slide. A drive motor is provided at the top of the square slide, and the output end of the drive motor is transmission-connected to the top end of the main shaft. A tool holder is rotatably provided at the bottom end of the square slide, and the tool holder is transmission-connected to the bottom end of the main shaft.
7. The sliding structure for a square ram of a CNC machine tool according to claim 6, characterized in that: The tool holder and the main shaft are connected via a coupling.