Horizontal moving device for three-coordinate measuring instrument
By lubrication of the gap between the mounting table and the moving frame with the high-pressure air chamber in the horizontal moving device of the three-coordinate measuring instrument, the problem of reduced accuracy in the prior art due to high friction force is solved, and higher movement accuracy and stability are achieved.
Patent Information
- Application Number
- CN202422104447.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-08-28
AI Technical Summary
The horizontal moving device of the existing three-coordinate measuring instrument has a complex structure and high friction, resulting in a reduced movement accuracy after long-term use.
A horizontal moving device including a mounting table, a moving frame and a driving mechanism is designed. By providing a docking member of a high-pressure air cavity on the docking block, an air film is formed to lubricate the gap between the mounting table and the moving frame and reduce friction.
It effectively reduces the friction of the mobile rack on the mounting table, and improves the accuracy and stability of movement.
Smart Images
Figure CN223037138U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coordinate measuring instrument equipment, in particular to a horizontal moving device for a coordinate measuring instrument. Background Art
[0002] A coordinate measuring instrument refers to an instrument that can exhibit measurement capabilities such as geometric shape, length, and circular graduation within a six-sided space range, also known as a coordinate measuring machine or a coordinate measuring bed. A coordinate measuring instrument can also be defined as "an instrument with a detector that can move in three directions, can move on three mutually perpendicular guide rails, this detector transmits signals in contact or non-contact ways, and a displacement measurement system (such as a grating scale) of three axes calculates the points (x, y, z) of the workpiece and various functional measurements through a data processor or a computer, etc.". The measurement functions of a coordinate measuring instrument should include dimensional accuracy, positioning accuracy, geometric accuracy, and profile accuracy, etc.
[0003] In the prior art, the horizontal moving device of a coordinate measuring instrument has a complex structure, and the friction generated during operation is relatively large. Therefore, when used for a long time, the moving accuracy of the coordinate measuring instrument will be reduced. Content of the Utility Model
[0004] To solve the above technical problems, the utility model provides a horizontal moving device for a coordinate measuring instrument. The specific technical solution is as follows:
[0005] A horizontal moving device for a coordinate measuring instrument includes a mounting table, a moving frame, and a driving mechanism. The moving frame is slidably arranged on the mounting table, and the driving mechanism is slidably connected to the moving frame. A rectangular docking block protruding upward is arranged on one side of the mounting table. The top of the docking block is a horizontally arranged first docking surface, and the two side surfaces adjacent to the first docking surface are respectively a vertically arranged second docking surface and a third docking surface;
[0006] The moving frame includes a main mounting frame and a cross frame. The main mounting frame is slidably arranged on the docking block, and the cross frame is fixedly connected to the top of the main mounting frame. A groove that fits the docking block is arranged at the lower end of the main mounting frame. A first docking member, a second docking member, and a third docking member are arranged in the groove. The first docking member is slidably matched with the first docking surface, the second docking member is slidably matched with the second docking surface, and the third docking member is slidably matched with the third docking surface. The main mounting frame slides horizontally on the docking block through the first docking member, the second docking member, and the third docking member.
[0007] Furthermore, the structures of the first docking piece, the second docking piece and the third docking piece are the same, the first docking piece is arranged in a rectangular block, a high-pressure air cavity is arranged on the inner side of the first docking piece, an air inlet docking port is arranged on the side end of the first docking piece, the air inlet docking port is connected with the high-pressure air cavity, a high-pressure air hole is arranged on the side of the first docking piece close to the docking block, and the high-pressure gas in the high-pressure air cavity is output through the high-pressure air hole, so that an air film is formed between the first docking piece and the first docking surface.
[0008] Furthermore, a docking ball head rod is provided on the first docking component, a ball head is provided at the end of the docking ball head rod, a ball head groove that matches the ball head is provided on the first docking component, a ball head matching tube is provided on the ball head groove, the docking ball head rod is inserted into the ball head matching tube, and the docking ball head rod is fixedly mounted on the active mounting frame.
[0009] Furthermore, the ball head fitting tube is provided with a mounting notch, and the docking ball head rod is inserted into the ball head fitting tube through the mounting notch.
[0010] Furthermore, the lower end of the docking block extends downward to form a fourth docking surface parallel to the first docking surface, and an L-shaped mounting frame is fixedly installed on the lower end surface of the active mounting frame. The L-shaped mounting frame is provided with a fourth docking piece that fits with the fourth docking surface. The fourth docking piece has the same structure as the first docking piece, and the fourth docking piece slides in cooperation with the fourth docking surface.
[0011] Furthermore, the driving mechanism is arranged on the mounting platform, and the driving mechanism includes a driving motor, a driving belt, a main driving wheel and a supporting wheel. The main driving wheel and the supporting wheel are rotatably arranged on the mounting platform, the driving belt is sleeved on the main driving wheel and the supporting wheel, the driving motor is arranged on the mounting platform, and the output end of the driving motor is transmission-connected to the main driving wheel, and the driving belt is transmission-connected to the moving frame.
[0012] Furthermore, the mobile frame also includes a driven mounting frame, which is fixedly mounted on the side of the horizontal frame away from the active mounting frame, and a fifth docking piece is provided at the lower end of the driven mounting frame. The fifth docking piece has the same structure as the first docking piece, and the high-pressure air hole on the fifth docking piece is arranged toward the mounting platform, and the driven mounting frame slides horizontally on the mounting platform.
[0013] Further, two of the first docking member, the second docking member, the third docking member and the fourth docking member are respectively provided, and the two first docking members, the second docking member, the third docking member and the fourth docking member are symmetrically arranged at the lower end of the active mounting frame.
[0014] Compared with the prior art, the utility model has the following beneficial effects:
[0015] First, in this solution, the top of the docking block is a horizontally arranged first docking surface, and the two side surfaces adjacent to the first docking surface are respectively a vertically arranged second docking surface and a third docking surface; the moving frame includes a driving mounting frame and a cross frame. The driving mounting frame is slidably arranged on the docking block, the cross frame is fixedly connected to the top of the driving mounting frame, and a groove that fits the docking block is arranged at the lower end of the driving mounting frame. A first docking member, a second docking member, and a third docking member are arranged in the groove. The first docking member is slidably matched with the first docking surface, the second docking member is slidably matched with the second docking surface, and the third docking member is slidably matched with the third docking surface. The driving mounting frame slides horizontally on the docking block through the first docking member, the second docking member, and the third docking member.
[0016] Second, in this solution, a high-pressure air cavity is arranged inside the first docking member. An air inlet docking port is arranged at the side end of the first docking member, and the air inlet docking port is communicated with the high-pressure air cavity. A high-pressure air hole is arranged on the side of the first docking member close to the docking block. The high-pressure gas in the high-pressure air cavity is output through the high-pressure air hole, so that an air film is formed between the first docking member and the first docking surface. The generated air film can lubricate the gap between the mounting table and the moving frame, thereby reducing the friction between the moving frame and the mounting table, and further improving the moving accuracy and stability of the moving frame. Description of the Drawings
[0017] Figure 1 is a three-dimensional structural diagram of the horizontal moving device;
[0018] Figure 2 is the front view of the horizontal moving device;
[0019] Figure 3 is a three-dimensional structural diagram of the moving frame in the horizontal moving device;
[0020] Figure 4 is Figure 3 the enlarged structural diagram of part A in;
[0021] Figure 5 is the structural diagram of the driving mounting frame part;
[0022] Figure 6 is the structural diagram of the docking block part in the horizontal moving device;
[0023] Figure 7 is the structural diagram of the first docking member in the horizontal moving device.
[0024] Reference numerals: mounting table 1, moving frame 2, active mounting frame 21, L-shaped mounting frame 211, cross frame 22, driven mounting frame 23, drive mechanism 3, drive motor 31, drive belt 32, main drive wheel 33, support wheel 34, docking block 4, first docking surface 41, second docking surface 42, third docking surface 43, fourth docking surface 44, first docking member 5, air intake docking port 51, high-pressure air hole 52, docking ball head rod 53, ball head groove 54, ball head fitting cylinder 55, second docking member 6, third docking member 7, fourth docking member 8, fifth docking member 9. Detailed implementation
[0025] The present utility model will be further described in conjunction with the accompanying drawings.
[0026] As Figures 1 to 7 shown, a horizontal moving device for a three-coordinate measuring instrument includes a mounting table 1, a moving frame 2, and a drive mechanism 3. The moving frame 2 is slidably arranged on the mounting table 1, and the drive mechanism 3 is slidably connected to the moving frame 2. A rectangular docking block 4 protruding upward is arranged on one side of the mounting table 1. The top of the docking block 4 is a horizontally arranged first docking surface 41, and the two side surfaces adjacent to the first docking surface 41 are respectively a vertically arranged second docking surface 42 and a third docking surface 43. The moving frame 2 includes an active mounting frame 21 and a cross frame 22. The active mounting frame 21 is slidably arranged on the docking block 4, and the cross frame 22 is fixedly connected to the top of the active mounting frame 21. A groove matching the docking block 4 is arranged at the lower end of the active mounting frame 21. A first docking member 5, a second docking member 6, and a third docking member 7 are arranged in the groove. The first docking member 5 is slidably matched with the first docking surface 41, the second docking member 6 is slidably matched with the second docking surface 42, and the third docking member 7 is slidably matched with the third docking surface 43. The active mounting frame 21 slides horizontally on the docking block 4 through the first docking member 5, the second docking member 6, and the third docking member 7.
[0027] In some embodiments, the structures of the first docking member 5, the second docking member 6, and the third docking member 7 are the same. The first docking member 5 is arranged in a rectangular block shape. A high-pressure air cavity is arranged inside the first docking member 5. An air intake docking port 51 is arranged at the side end of the first docking member 5, and the air intake docking port 51 is communicated with the high-pressure air cavity. A high-pressure air hole 52 is arranged on the side of the first docking member 5 close to the docking block 4. The high-pressure gas in the high-pressure air cavity is output through the high-pressure air hole 52, so that an air film is formed between the first docking member 5 and the first docking surface 41. The generated air film can lubricate the gap between the mounting table 1 and the moving frame 2, thereby reducing the friction between the moving frame 2 and the mounting table 1, and further improving the moving accuracy and stability of the moving frame 2.
[0028] In some embodiments, a docking ball head rod 53 is provided on the first docking member 5, and a ball head is provided at the end of the docking ball head rod 53. A ball head groove 54 that fits with the ball head is provided on the first docking member 5, and a ball head fitting tube 55 is provided on the ball head groove 54. The docking ball head rod 53 is inserted into the ball head fitting tube 55, and the docking ball head rod 53 is fixedly installed on the active mounting frame 21. The docking ball head rod 53 can cooperate with the ball head groove 54 to enable the first docking member 5, the second docking member 6 and the third docking member 7 on the mobile frame 2 to swing at a certain angle, thereby ensuring that the first docking member 5, the second docking member 6 and the third docking member 7 can cooperate with the outer surface of the docking block 4 in parallel, thereby improving the movement stability of the mobile frame 2 on the mounting platform 1.
[0029] On this basis, the ball head fitting tube 55 is further provided with an installation notch, and the docking ball head rod 53 is inserted into the ball head fitting tube 55 through the installation notch. The installation notch can facilitate the installation of the docking ball head rod 53 and the ball head fitting tube 55.
[0030] In some embodiments, the lower end of the docking block 4 extends downward to form a fourth docking surface 44 parallel to the first docking surface 41, and the lower end surface of the active mounting frame 21 is fixedly installed with an L-shaped mounting frame 211, and the L-shaped mounting frame 211 is provided with a fourth docking member 8 that fits with the fourth docking surface 44. The fourth docking member 8 has the same structure as the first docking member 5, and the fourth docking member 8 is slidably matched with the fourth docking surface 44. The setting of the fourth docking member 8 further improves the movement stability of the mobile frame 2 on the mounting platform 1.
[0031] In some embodiments, the driving mechanism 3 is arranged on the mounting platform 1, and the driving mechanism 3 includes a driving motor 31, a driving belt 32, a main driving wheel 33 and a supporting wheel 34. The main driving wheel 33 and the supporting wheel 34 are rotatably arranged on the mounting platform 1, and the driving belt 32 is sleeved on the main driving wheel 33 and the supporting wheel 34. The driving motor 31 is arranged on the mounting platform 1, and the output end of the driving motor 31 is transmission-connected to the main driving wheel 33, and the driving belt 32 is transmission-connected to the moving frame 2. The main driving wheel 33 is driven to rotate by the driving motor 31, and the driving belt 32 is driven to run on the main driving wheel 33 and the supporting wheel 34 by the main driving wheel 33, and the moving frame 2 is driven to move horizontally on the mounting platform 1 by the driving belt 32.
[0032] On this basis, the driving motor 31 in this solution is a servo motor, and the servo motor can accurately control the moving frame 2 to move accurately on the mounting platform 1.
[0033] In some embodiments, the moving frame 2 further includes a driven mounting frame 23. The driven mounting frame 23 is fixedly mounted on one side of the cross frame 22 away from the driving mounting frame 21. The driven mounting frame 23, the driving mounting frame 21 and the cross frame 22 are spliced with each other to form a gate-shaped arrangement, so as to further improve the structural strength and stability of the moving frame 2. A fifth docking member 9 is provided at the lower end of the driven mounting frame 23. The fifth docking member 9 has the same structure as the first docking member 5. The high-pressure air holes 52 on the fifth docking member 9 face the mounting table 1. The driven mounting frame 23 slides horizontally on the mounting table 1. By providing the fifth docking member 9, the driven mounting frame 23 can move horizontally on the mounting table 1 stably.
[0034] In some embodiments, two first docking members 5, two second docking members 6, two third docking members 7 and two fourth docking members 8 are respectively provided. The two first docking members 5, second docking members 6, third docking members 7 and fourth docking members 8 are symmetrically arranged at the lower end of the driving mounting frame 21, so as to form a balanced supporting force between the driving mounting frame 21 and the mounting table 1, and further improve the cooperation stability between the driving mounting frame 21 and the mounting table 1.
[0035] When this solution is in use, high-pressure gas is connected to the first docking member 5, the second docking member 6, the third docking member 7, the fourth docking member 8 and the fifth docking member 9 through pipelines, so that air films are formed between the first docking member 5, the second docking member 6, the third docking member 7 and the fourth docking member 8 and the first docking surface 41, the second docking surface 42, the third docking surface 43 and the fourth docking surface 44 respectively, so as to improve the sliding stability of the moving frame 2 on the mounting table 1. On this basis, the driving mechanism 3 is provided to drive the moving frame 2 to move stably horizontally.
[0036] The technical principle of the present invention has been described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be construed as limiting the protection scope of the present invention in any way. Based on the explanations herein, those skilled in the art can think of other specific embodiments of the present invention without creative labor, and these embodiments will fall within the protection scope of the claims of the present invention.
Claims
1. A horizontal moving device for a three-coordinate measuring instrument, characterized in that: The invention comprises a mounting platform (1), a movable frame (2) and a driving mechanism (3), wherein the movable frame (2) is slidably arranged on the mounting platform (1), and the driving mechanism (3) is slidably connected to the movable frame (2); a rectangular docking block (4) protruding upward is arranged on one side of the mounting platform (1), the top of the docking block (4) is a first docking surface (41) arranged horizontally, and two side surfaces adjacent to the first docking surface (41) are a second docking surface (42) and a third docking surface (43) arranged vertically respectively; The movable frame (2) comprises an active mounting frame (21) and a cross frame (22); the active mounting frame (21) is slidably arranged on a docking block (4); the cross frame (22) is fixedly connected to the top of the active mounting frame (21); a groove matching the docking block (4) is arranged at the lower end of the active mounting frame (21); a first docking member (5), a second docking member (6) and a third docking member (7) are arranged in the groove; the first docking member (5) is slidably matched with a first docking surface (41); the second docking member (6) is slidably matched with a second docking surface (42); the third docking member (7) is slidably matched with a third docking surface (43); the active mounting frame (21) slides horizontally on the docking block (4) via the first docking member (5), the second docking member (6) and the third docking member (7).
2. The horizontal moving device for a three-coordinate measuring machine according to claim 1, characterized in that: The first docking member (5), the second docking member (6) and the third docking member (7) have the same structure. The first docking member (5) is arranged in a rectangular block. A high-pressure air cavity is arranged on the inner side of the first docking member (5). An air inlet docking port (51) is arranged on the side end of the first docking member (5). The air inlet docking port (51) is connected to the high-pressure air cavity. A high-pressure air hole (52) is arranged on the side of the first docking member (5) close to the docking block (4). The high-pressure gas in the high-pressure air cavity is output through the high-pressure air hole (52), so that an air film is formed between the first docking member (5) and the first docking surface (41).
3. The horizontal moving device for a three-coordinate measuring machine according to claim 1, characterized in that: The first docking member (5) is provided with a docking ball head rod (53), the end of the docking ball head rod (53) is provided with a ball head, the first docking member (5) is provided with a ball head groove (54) matched with the ball head, the ball head groove (54) is provided with a ball head matching tube (55), the docking ball head rod (53) is inserted into the ball head matching tube (55), and the docking ball head rod (53) is fixedly mounted on the active mounting frame (21).
4. The horizontal moving device for a three-coordinate measuring machine according to claim 3, characterized in that: The ball head fitting tube (55) is provided with a mounting notch, and the docking ball head rod (53) is inserted into the ball head fitting tube (55) through the mounting notch.
5. The horizontal moving device for a three-coordinate measuring machine according to claim 1, characterized in that: The lower end of the docking block (4) extends downward to form a fourth docking surface (44) parallel to the first docking surface (41); an L-shaped mounting frame (211) is fixedly mounted on the lower end surface of the active mounting frame (21); a fourth docking member (8) matching with the fourth docking surface (44) is arranged on the L-shaped mounting frame (211); the fourth docking member (8) has the same structure as the first docking member (5); and the fourth docking member (8) is slidably matched with the fourth docking surface (44).
6. The horizontal moving device for a three-dimensional coordinate measuring machine according to claim 1, characterized in that: The driving mechanism (3) is arranged on the mounting platform (1), and comprises a driving motor (31), a driving belt (32), a main driving wheel (33) and a supporting wheel (34); the main driving wheel (33) and the supporting wheel (34) are rotatably arranged on the mounting platform (1); the driving belt (32) is sleeved on the main driving wheel (33) and the supporting wheel (34); the driving motor (31) is arranged on the mounting platform (1); the output end of the driving motor (31) is transmission-connected to the main driving wheel (33); and the driving belt (32) is transmission-connected to the moving frame (2).
7. The horizontal moving device for a three-coordinate measuring machine according to claim 1, characterized in that: The mobile frame (2) also includes a driven mounting frame (23), the driven mounting frame (23) being fixedly mounted on a side of the horizontal frame (22) away from the active mounting frame (21), a fifth docking member (9) being provided at the lower end of the driven mounting frame (23), the fifth docking member (9) having the same structure as the first docking member (5), the high-pressure air hole (52) on the fifth docking member (9) being arranged toward the mounting platform (1), and the driven mounting frame (23) sliding horizontally on the mounting platform (1).
8. The horizontal moving device for a three-coordinate measuring machine according to claim 2, characterized in that: Two first docking members (5), two second docking members (6), two third docking members (7) and two fourth docking members (8) are respectively provided, and the two first docking members (5), two second docking members (6), three third docking members (7) and four fourth docking members (8) are symmetrically arranged at the lower end of the active mounting frame (21).