Precise positioning device for numerical control machine tool
By designing structures such as frames, slides, moving seats, and turntables on CNC machine tools, automatic positioning and stable clamping of precision parts are achieved, solving the position deviation problem caused by manual adjustment of existing fixtures and improving machining accuracy and efficiency.
Patent Information
- Application Number
- CN202520316406.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-26
AI Technical Summary
Existing CNC machine tool fixtures require manual adjustment when clamping precision parts, which can easily lead to positional deviations.
It employs a precision positioning device that includes a frame, slide, movable seat, turntable, and mounting base. Through adjustment and rotation mechanisms, it achieves automatic positioning and angle adjustment of precision parts, and combines ball screws to realize the movement and cutting of precision parts.
It achieves stable clamping and automatic positioning of precision parts, reduces manual adjustment deviations, and improves machining accuracy and efficiency.
Smart Images
Figure CN223776606U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of numerical control machine tools, in particular to a precision positioning device for a numerical control machine tool. BACKGROUND
[0002] The numerical control machine tool is one of the numerical control machine tools that are widely used. The numerical control machine tool is mainly used for cutting machining of inner and outer cylindrical surfaces of shaft parts or disc parts, inner and outer conical surfaces with any taper angle, complex rotary inner and outer curved surfaces, cylindrical threads and conical threads, and can also be used for cutting grooves, drilling, counterboring, reaming and boring. The existing numerical control machine tool fixture is generally a simple clamp or a bolt structure, which can clamp various parts, but when clamping precision parts, the position of the precision part needs to be manually adjusted, which is prone to deviation. Therefore, the precision positioning device for the numerical control machine tool is proposed. CONTENT OF THE UTILITY MODEL
[0003] In order to solve the problem that the existing fixture needs to manually adjust the position of the precision part when clamping the precision part and is prone to deviation, the application provides a precision positioning device for a numerical control machine tool.
[0004] The precision positioning device for the numerical control machine tool provided by the application adopts the following technical scheme:
[0005] A precision positioning device for a numerical control machine tool, comprising a rack, a sliding groove is formed in the upper surface of the rack, a moving seat is connected to the inside of the sliding groove through a moving mechanism, a rotating disc is rotatably connected to the surface of the moving seat, a plurality of mounting seats are arranged on the outer surface of the rotating disc, the mounting seats are arranged in an annular array, a groove body matched with a precision part is formed in the surface of the mounting seat, a fixing bolt is inserted into the outer surface of the mounting seat, an adjusting mechanism and a rotating mechanism are arranged on the moving seat, the rotating mechanism is used for rotating one of the mounting seats, and the adjusting mechanism is used for adjusting the angle of the rotating disc.
[0006] Preferably, the adjusting mechanism comprises a rotating shaft fixedly installed at the center of the rotating disc, one end of the rotating shaft is rotatably connected to the moving seat, a positioning bolt is inserted into the surface of the moving seat, a plurality of positioning holes are formed in the outer surface of the rotating shaft, the positioning holes are one-to-one corresponding to the mounting seats, and the positioning bolt can move into or out of the positioning hole.
[0007] Preferably, the rotating mechanism comprises a connecting shaft fixedly installed at the center of the mounting seat, one end of the connecting shaft protrudes from the rotating disc, a limiting groove is formed in the outer surface of the connecting shaft, a rotating motor is fixedly installed on the surface of the moving seat, a connecting rod is slidably inserted into the output shaft of the rotating motor, a pull plate is fixedly connected to the middle part of the connecting rod, and a spring is fixedly connected between the pull plate and the output shaft of the rotating motor.
[0008] Preferably, the connecting rod is rectangular in structure and is adapted to the limiting groove.
[0009] Preferably, the moving mechanism comprises a screw rod rotatably installed in the sliding groove, a driving motor fixedly installed on the outer surface of the rack, an output shaft of the driving motor fixedly connected with one end of the screw rod, and a ball seat fixedly connected to the bottom of the moving seat and sleeved on the outer surface of the screw rod.
[0010] To sum up, the present application has the following beneficial technical effects:
[0011] The shape and size of the groove on the mounting seat can be set according to the size of the precision part. When the precision part is installed, one end of the precision part is inserted into the corresponding mounting seat groove, and then the fixing bolt is tightened to fix the precision part. By setting the matching mounting structure, the precision part can be stably clamped to facilitate the machining of the precision part. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 is a structural schematic diagram of the whole application embodiment;
[0013] Figure 2 is a structural schematic diagram of the local application embodiment;
[0014] Figure 3 is an application embodiment Figure 2 is an enlarged view of A in the application embodiment.
[0015] Mark 1, rack; 2, sliding groove; 3, screw rod; 4, driving motor; 5, moving seat; 6, rotating disc; 7, mounting seat; 8, fixing bolt; 9, connecting shaft; 10, limiting groove; 11, positioning bolt; 12, rotating shaft; 13, positioning hole; 14, rotating motor; 15, connecting rod; 16, spring; 17, pull plate. DETAILED DESCRIPTION
[0016] The following will be combined with the Figures 1-3 The application is further described in detail.
[0017] The application embodiment discloses a precision positioning device for numerical control machine tool, which comprises a rack 1, a sliding groove 2 is formed on the upper surface of the rack 1, a moving seat 5 is connected with the moving mechanism arranged in the sliding groove 2, a rotating disc 6 is rotatably connected to the surface of the moving seat 5, a plurality of mounting seats 7 are arranged on the outer surface of the rotating disc 6, the mounting seats 7 are arranged in an annular array, a groove body adapted to the precision part is formed on the surface of the mounting seat 7, a fixing bolt 8 is inserted on the outer surface of the mounting seat 7, an adjusting mechanism and a rotating mechanism are arranged on the moving seat 5, the rotating mechanism is used for driving one of the mounting seats 7 to rotate, and the adjusting mechanism is used for adjusting the angle of the rotating disc 6.
[0018] The shape and size of the groove on the mounting seat 7 can be set according to the size of the precision part. When the precision part is installed, one end of the precision part is inserted into the corresponding groove of the mounting seat 7, and then the fixing bolt 8 is tightened to fix the precision part. By setting the matching installation structure, the precision part can be clamped stably to facilitate machining of the precision part.
[0019] In the embodiment, the position of the mounting seat 7 can be switched by setting the adjusting mechanism to facilitate machining of each precision part. The mounting seat 7 and the precision part can be rotated by setting the rotating mechanism to facilitate cutting machining of the precision part.
[0020] Further, the adjusting mechanism includes a rotating shaft 12 fixedly installed at the center of the rotating disc 6. One end of the rotating shaft 12 is rotatably connected to the moving seat 5. The moving seat 5 has a positioning bolt 11 inserted thereon. A plurality of positioning holes 13 are formed on the outer surface of the rotating shaft 12. The positioning holes 13 correspond to the mounting seats 7 one by one. The positioning bolt 11 can be moved into or out of the positioning holes 13.
[0021] In the embodiment, when it is necessary to adjust the position of the mounting seat 7 and switch the precision part, the positioning bolt 11 is first unscrewed from the inside of the positioning hole 13. Then, the rotating shaft 12 is rotated to rotate the precision part to be switched to the machining position. Then, the positioning bolt 11 is screwed into the corresponding positioning hole 13 to switch the precision part.
[0022] Further, the rotating mechanism includes a connecting shaft 9 fixedly installed at the center of the mounting seat 7. One end of the connecting shaft 9 protrudes from the rotating disc 6. A limiting groove 10 is formed on the outer surface of the connecting shaft 9. A rotating motor 14 is fixedly installed on the surface of the moving seat 5. A connecting rod 15 is slidably inserted into the output shaft of the rotating motor 14. A pull plate 17 is fixedly connected to the middle part of the connecting rod 15. A spring 16 is fixedly connected between the pull plate 17 and the output shaft of the rotating motor 14.
[0023] Further, the connecting rod 15 and the limiting groove 10 are provided with a rectangular structure that matches each other. The connecting rod 15 can be moved into or out of the limiting groove 10.
[0024] In the embodiment, the connecting shaft 9 and the output shaft of the rotating motor 14 can be connected or separated by setting the connecting rod 15, the spring 16, and the limiting groove 10. Specifically, when the connecting rod 15 is located in the limiting groove 10, the connecting rod 15 and the output shaft of the rotating motor 14 are in a connected state. The rotating motor 14 can drive the connecting rod 15 and the mounting seat 7 to rotate. When it is necessary to separate the connecting shaft 9 from the rotating motor 14, the pull plate 17 is pulled to move the connecting rod 15 out of the limiting groove 10, so that the connecting rod 15 and the output shaft of the rotating motor 14 are separated.
[0025] Further, the moving mechanism comprises a screw rod 3 rotatably installed in the sliding groove 2, a driving motor 4 is fixedly installed on the outer surface of the rack 1, the output shaft of the driving motor 4 is fixedly connected with one end of the screw rod 3, and the bottom of a moving seat 5 is fixedly connected with a ball seat which is sleeved on the outer surface of the screw rod 3.
[0026] In the embodiment, the ball screw is a kind of existing transmission element, and the main function thereof is to convert rotary motion into linear motion, which will not be repeated here, in actual use, the driving motor 4 needs to be connected with an external power supply, and the driving motor 4 needs to be started in forward and reverse directions, so that the ball seat moves back and forth along the screw rod 3, that is, the moving seat 5 can be moved, so that the precision part can be moved to the cutting tool.
[0027] It should be noted that: the switch interfaces of the driving motor 4 and the rotating motor 14 are connected with an external power supply through wires, and the circuit and the related driving program involved are conventional technologies, which will not be repeated here.
[0028] Finally, it should be pointed out that: first, in the description of the application, it should be pointed out that, unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to indicate the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;
[0029] Secondly: the utility model discloses the embodiment of the drawings, only relate to the structure involved in the embodiment of the disclosure, other structures can refer to the usual design, under the condition of no conflict, the same embodiment and different embodiments of the utility model can be combined with each other;
[0030] Finally: the above only for the preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement, etc.
[0031] The above are the preferred embodiments of the application, and are not used to limit the protection scope of the application, so: any equivalent change made according to the structure, shape, principle of the application should be covered in the protection scope of the application.
Claims
1. A precision positioning device for CNC machine tools, comprising a frame (1), characterized in that, The upper surface of the frame (1) is provided with a sliding groove (2). The sliding groove (2) is connected to a moving seat (5) through a moving mechanism. The surface of the moving seat (5) is rotatably connected to a turntable (6). The outer surface of the turntable (6) is provided with multiple sets of mounting seats (7). The mounting seats (7) are arranged in a ring array. The surface of the mounting seats (7) is provided with grooves that are compatible with precision parts. The outer surface of each mounting seat (7) is fitted with fixing bolts (8). The moving seat (5) is provided with an adjustment mechanism and a rotation mechanism. The rotation mechanism is used to drive one set of mounting seats (7) to rotate. The adjustment mechanism is used to adjust the angle of the turntable (6).
2. The precision positioning device for CNC machine tools according to claim 1, characterized in that, The adjustment mechanism includes a rotating shaft (12) fixedly installed at the center of the turntable (6). One end of the rotating shaft (12) is rotatably connected to the movable seat (5). A positioning bolt (11) is inserted into the surface of the movable seat (5). Multiple sets of positioning holes (13) are opened on the outer surface of the rotating shaft (12). The positioning holes (13) correspond one-to-one with the mounting seat (7), and the positioning bolt (11) can be moved into or out of the positioning hole (13).
3. The precision positioning device for CNC machine tools according to claim 2, characterized in that, The rotating mechanism includes a connecting shaft (9) fixedly installed at the center of the mounting base (7). One end of the connecting shaft (9) protrudes from the turntable (6). A limit groove (10) is opened on the outer surface of the connecting shaft (9). A rotating motor (14) is fixedly installed on the surface of the moving base (5). A connecting rod (15) is slidably inserted inside the output shaft of the rotating motor (14). A pull plate (17) is fixedly connected to the middle of the connecting rod (15). A spring (16) is fixedly connected between the pull plate (17) and the output shaft of the rotating motor (14).
4. A precision positioning device for CNC machine tools according to claim 3, characterized in that, The connecting rod (15) and the limiting groove (10) are provided with a rectangular structure that is compatible with each other, and the connecting rod (15) can be moved into or out of the limiting groove (10).
5. A precision positioning device for CNC machine tools according to claim 4, characterized in that, The moving mechanism includes a lead screw (3) rotatably installed inside the slide groove (2), a drive motor (4) is fixedly installed on the outer surface of the frame (1), the output shaft of the drive motor (4) is fixedly connected to one end of the lead screw (3), and a ball seat is fixedly connected to the bottom of the moving seat (5), the ball seat is sleeved on the outer surface of the lead screw (3).