Numerical control lathe with positioning function
By designing structures such as positioning tables and screws on CNC lathes, the centering positioning of the workpieces and preventing vibration and loosening are solved, and the accuracy and dimensional offset problems caused by the unfixed fixtures in existing CNC lathes are improved, and the machining accuracy and stability are improved. sex.
Patent Information
- Application Number
- CN202421206937.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-05-30
AI Technical Summary
During the processing process of existing CNC lathes, due to the insecure fixtures, the workpiece vibration and the axis center are not aligned, which affects the processing accuracy and dimensional accuracy.
A CNC lathe with positioning function was designed. By setting up a positioning table, screw, slider, linkage block and limit block on the machining table, the centering positioning and prevention of the workpiece is achieved by using the cooperation between the screw and the slider. The vibration is loose.
Effectively prevent the workpiece from loosening due to vibration during processing, ensure processing accuracy and dimensional accuracy, and avoid deviation problems caused by unstable fixtures.
Smart Images
Figure CN222134271U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of numerically controlled lathes, in particular to a numerically controlled lathe with a positioning function. Background Art
[0002] CNC lathe is a computer-controlled automated machine tool, mainly used for processing and cutting metal materials. It can automatically perform processing operations according to pre-programmed instructions to achieve high-precision and high-efficiency processing. CNC lathes are mainly composed of machine tool body, CNC system, tool and tool holder, chuck and fixture, etc. Through the CNC system, the operator can input processing parameters and programs to control the motion trajectory of the lathe, tool cutting speed and cutting depth and other parameters. CNC lathes can process various shapes, such as turning, boring, milling, drilling, tapping, etc.
[0003] When using existing CNC lathes, the workpiece needs to be fixed on the fixture, but most of the fixtures need to be fixed and installed by bolts, and clamping too tightly may cause the fixture position to shift when vibration occurs during processing, thus affecting the processing. In addition, when processing some columnar workpieces, manual adjustment of the fixture cannot align the axis of the workpiece, which may cause the size of the processing process to shift. Utility Model Content
[0004] The purpose of the utility model is to provide a CNC lathe with a positioning function to solve the problems raised in the above background technology.
[0005] To achieve the above object, the utility model provides the following technical solution: a CNC lathe with a positioning function, comprising a machine body, a processing table is arranged inside the machine body, a positioning part is arranged on the top surface of the processing table, and the positioning part comprises:
[0006] A positioning platform, wherein the bottom surface of the positioning platform is fixedly connected to the top surface of the processing platform, a sliding groove is provided on the surface of the positioning platform, a screw rod is passed through the side surface of the positioning platform, the screw rod passes through the positioning platform, and the screw rod is threadedly connected to the positioning platform, and the screw rod passes through and is rotatably connected to a connecting column;
[0007] A sliding block, wherein a side of the sliding block close to the connecting column is fixedly connected to the surface of the connecting column, and the screw rod is rotated, and the screw rod gradually moves toward the inside of the positioning platform. Since the screw rod is rotatably connected to the connecting column, the screw rod pushes the sliding block through the connecting column while moving. A support rod penetrates the side of the sliding block away from the connecting column, and a linkage block is fixedly connected to the end of the support rod away from the sliding block, and a reset spring is fixedly connected between the linkage block and the sliding block;
[0008] A connecting block, the bottom surface of which is fixedly connected to the top surface of the linkage block, and the top surface of which is fixedly connected to a positioning block. When the sliding block contracts, the connecting block drives the positioning block to center the workpiece to be processed.
[0009] Preferably, a resistance block is fixedly connected to one side of the linkage block close to the sliding block, an L-shaped groove is provided on the inner side of the sliding block, a ramp block is slidably connected to the inner side of the L-shaped groove, and when the screw is continuously rotated, the ramp block moves upward.
[0010] Preferably, the bottom surface of the inclined plane block is an inclined plane, and a vertical rod passes through the top surface of the inclined plane block. The vertical rod is slidably connected to the inclined plane block. The inclined plane block will push the limit block upward together through the vertical rod, so that the limit block contacts the surface of the positioning block. The top surface of the vertical rod is fixedly connected to the limit block, and a telescopic spring is fixedly connected between the limit block and the inclined plane block.
[0011] Preferably, the number of the sliding blocks is three groups, and the three groups of sliding blocks are respectively arranged in a circular array with the center line of the positioning platform as the axis.
[0012] Preferably, an arc spring is fixedly connected between the sliding block and the other two groups of sliding blocks. When the sliding block is pushed, the sliding block drives the other two groups of sliding blocks to move together through the arc rod, so that the three groups of sliding blocks shrink toward the middle.
[0013] Preferably, arc-shaped rods penetrate the surfaces of both ends of the sliding block, the number of the arc-shaped rods is three groups, and both ends of each group of the arc-shaped rods penetrate the sliding block.
[0014] Compared with the prior art, the utility model provides a CNC lathe with a positioning function, which has the following beneficial effects:
[0015] 1. For the CNC lathe with positioning function, after the positioning block positions the workpiece, the screw continues to be rotated, which will cause the sliding block to move in the direction of the linkage block, and the resistance block will gradually be inserted into the L-shaped groove, and the inclined surface of the resistance block will resist the inclined surface of the inclined surface block, so that the inclined surface block moves upward, and the inclined surface block will push the limit block upward together through the vertical rod, so that the limit block resists the surface of the positioning block, to prevent the positioning block from loosening due to vibration when the workpiece is being processed.
[0016] 2. For the CNC lathe with positioning function, when the screw is rotated, the screw will gradually move toward the inside of the positioning table. Since the screw is rotatably connected to the connecting column, the screw will push the sliding block through the connecting column while moving. When the sliding block is pushed, the sliding block will drive the other two groups of sliding blocks to move together through the arc rod, so that the three groups of sliding blocks will shrink toward the middle. When the sliding block shrinks, it will first drive the connecting block to move together through the support rod and the linkage block, and the connecting block will slide along the slide groove. At the same time, the connecting block will drive the positioning block to center the workpiece to be processed to prevent the axis deviation of the workpiece from causing the workpiece size error. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the front view structure of the utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the positioning platform of the utility model;
[0019] Figure 3 This is a schematic diagram of the internal structure of the positioning platform of the utility model;
[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the sliding block of the utility model.
[0021] In the figure: 1. body; 2. positioning part; 21. positioning platform; 22. slide groove; 23. screw rod; 24. connecting column; 24. connecting column; 25. sliding block; 26. support rod; 27. linkage block; 28. return spring; 29. connecting block; 210. positioning block; 211. resistance block; 212. L-shaped groove; 213. inclined block; 214. vertical rod; 215. limit block; 216. telescopic spring; 217. arc rod; 218. arc spring; 3. processing table. DETAILED DESCRIPTION
[0022] like Figure 1-Figure 4 As shown, the utility model provides a technical solution: a CNC lathe with a positioning function, including a body 1, a processing table 3 is arranged inside the body 1, and a positioning part 2 is arranged on the top surface of the processing table 3, and the positioning part 2 includes: a positioning table 21, a slide groove 22, a screw rod 23, a connecting column 24, a sliding block 25, a support rod 26, a linkage block 27, a reset spring 28, a connecting block 29, a positioning block 210, a resistance block 211, an L-shaped groove 212, a ramp block 213, a vertical rod 214, a limit block 215, a telescopic spring 216, an arc rod 217, and an arc spring 218.
[0023] The bottom surface of the positioning platform 21 is fixedly connected to the top surface of the processing platform 3, and a slide groove 22 is provided on the surface of the positioning platform 21. A screw 23 is passed through the side of the positioning platform 21, and the screw 23 passes through the positioning platform 21, and the screw 23 is threadedly connected to the positioning platform 21. The screw 23 passes through and is rotatably connected to a connecting column 24, and a side of the sliding block 25 close to the connecting column 24 is fixedly connected to the surface of the connecting column 24. When it is necessary to process the workpiece, the door of the machine body 1 is opened, the workpiece is placed on the surface of the positioning platform 21, and the screw 23 is rotated. The screw 23 will gradually move toward the inside of the positioning platform 21. Since the screw 23 is rotatably connected to the connecting column 24, the screw 23 moves while The sliding block 25 will be pushed by the connecting column 24, and a support rod 26 runs through the side of the sliding block 25 away from the connecting column 24, and a linkage block 27 is fixedly connected to the end of the support rod 26 away from the sliding block 25, and a return spring 28 is fixedly connected between the linkage block 27 and the sliding block 25. The bottom surface of the connecting block 29 is fixedly connected to the top surface of the linkage block 27, and the top surface of the connecting block 29 is fixedly connected to the positioning block 210. When the sliding block 25 contracts, the connecting block 29 will be driven to move together through the support rod 26 and the linkage block 27, and the connecting block 29 will slide along the slide groove 22, and at the same time, the connecting block 29 will drive the positioning block 210 to center the workpiece to be processed. A resistance block 211 is fixedly connected to one side of the linkage block 27 close to the sliding block 25, an L-shaped groove 212 is provided on the inner side of the sliding block 25, and a slope block 213 is slidably connected to the inner side of the L-shaped groove 212. When the screw rod 23 continues to rotate, the sliding block 25 will move toward the linkage block 27, and the resistance block 211 will gradually insert into the L-shaped groove 212, and the inclined surface of the resistance block 211 will resist the inclined surface of the inclined surface block 213, thereby moving the inclined surface block 213 upward. The bottom surface of the inclined plane block 213 is an inclined plane, and the top surface of the inclined plane block 213 is penetrated by a vertical rod 214, and the vertical rod 214 is slidably connected with the inclined plane block 213. The inclined plane block 213 will push the limit block 215 upward together through the vertical rod 214, so that the limit block 215 contacts the surface of the positioning block 210, and prevents the positioning block 210 from loosening due to vibration when the workpiece is processed. The top surface of the vertical rod 214 is fixedly connected with the limit block 215, and a telescopic spring 216 is fixedly connected between the limit block 215 and the inclined plane block 213. The number of sliding blocks 25 is three groups, and the three groups of sliding blocks 25 are respectively arranged in a circular array with the center line of the positioning platform 21 as the axis. An arc spring 218 is fixedly connected between the sliding block 25 and the other two groups of sliding blocks 25. When the sliding block 25 is pushed, the sliding block 25 will drive the other two groups of sliding blocks 25 to move together through the arc rod 217, so that the three groups of sliding blocks 25 shrink toward the middle. Arc rods 217 penetrate the surfaces of both ends of the sliding block 25 . There are three groups of arc rods 217 , and both ends of each group of arc rods 217 penetrate the sliding block 25 .
[0024] Based on the above embodiment, when the workpiece needs to be processed, the door of the machine body 1 is opened, the workpiece is placed on the surface of the positioning platform 21, and the screw 23 is rotated. The screw 23 will gradually move toward the inside of the positioning platform 21. Since the screw 23 is rotatably connected with the connecting column 24, the screw 23 will push the sliding block 25 through the connecting column 24 while moving. When the sliding block 25 is pushed, the sliding block 25 will drive the other two groups of sliding blocks 25 to move together through the arc rod 217, so that the three groups of sliding blocks 25 are retracted toward the middle. When the sliding block 25 is retracted, it will first drive the connecting block 29 to move together through the support rod 26 and the linkage block 27, and The connecting block 29 will slide along the slide groove 22, and at the same time, the connecting block 29 will drive the positioning block 210 to center the workpiece to be processed. When the screw rod 23 continues to rotate, the sliding block 25 will move in the direction of the linkage block 27, and the resistance block 211 will gradually insert into the L-shaped groove 212, and the inclined surface of the resistance block 211 will resist the inclined surface of the inclined surface block 213, so that the inclined surface block 213 moves upward, and the inclined surface block 213 will push the limit block 215 upward together through the vertical rod 214, so that the limit block 215 resists the surface of the positioning block 210, to prevent the positioning block 210 from loosening due to vibration when the workpiece is being processed.
[0025] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.
Claims
1. A CNC lathe with a positioning function, comprising a machine body (1), characterized in that: A processing table (3) is arranged inside the machine body (1), and a positioning portion (2) is arranged on the top surface of the processing table (3), wherein the positioning portion (2) comprises: A positioning platform (21), wherein the bottom surface of the positioning platform (21) is fixedly connected to the top surface of the processing platform (3), a slide groove (22) is provided on the surface of the positioning platform (21), a screw rod (23) penetrates the side surface of the positioning platform (21), the screw rod (23) penetrates the positioning platform (21), and the screw rod (23) is threadedly connected to the positioning platform (21), and the screw rod (23) penetrates and is rotatably connected to a connecting column (24); A sliding block (25), wherein a side of the sliding block (25) close to the connecting column (24) is fixedly connected to the surface of the connecting column (24), a support rod (26) passes through a side of the sliding block (25) away from the connecting column (24), an end of the support rod (26) away from the sliding block (25) is fixedly connected to a linkage block (27), and a return spring (28) is fixedly connected between the linkage block (27) and the sliding block (25); A connecting block (29), wherein the bottom surface of the connecting block (29) is fixedly connected to the top surface of the linkage block (27), and the top surface of the connecting block (29) is fixedly connected to a positioning block (210).
2. A CNC lathe with positioning function according to claim 1, characterized in that: A resisting block (211) is fixedly connected to one side of the linkage block (27) close to the sliding block (25); an L-shaped groove (212) is provided on the inner side of the sliding block (25); and a slope block (213) is slidably connected to the inner side of the L-shaped groove (212).
3. A CNC lathe with positioning function according to claim 2, characterized in that: The bottom surface of the inclined surface block (213) is an inclined surface, the top surface of the inclined surface block (213) is penetrated by a vertical rod (214), the vertical rod (214) is slidably connected to the inclined surface block (213), the top surface of the vertical rod (214) is fixedly connected to a limit block (215), and a telescopic spring (216) is fixedly connected between the limit block (215) and the inclined surface block (213).
4. The CNC lathe with positioning function according to claim 1, characterized in that: The number of the sliding blocks (25) is three groups, and the three groups of sliding blocks (25) are respectively arranged in a circular array with the center line of the positioning platform (21) as the axis.
5. The CNC lathe with positioning function according to claim 4, characterized in that: An arc spring (218) is fixedly connected between the sliding block (25) and the other two groups of sliding blocks (25).
6. The CNC lathe with positioning function according to claim 4, characterized in that: Arc-shaped rods (217) penetrate the surfaces of both ends of the sliding block (25). The number of the arc-shaped rods (217) is three groups, and both ends of each group of the arc-shaped rods (217) penetrate the sliding block (25).