Cantilever moving device for three-coordinate measuring instrument

Abstract

The utility model relates to the technical field of measuring instrument equipment, in particular to a cantilever moving device for a three-coordinate measuring instrument, which comprises a mounting table, a cantilever, a fixed transverse frame, a driving mechanism and a sliding mounting frame, the driving mechanism is mounted on the fixed transverse frame, and the sliding mounting frame is arranged on the fixed transverse frame in a sliding manner. The driving mechanism is in transmission connection to the sliding mounting frame, and the cantilever is fixedly mounted on the sliding mounting frame; the cross section of the fixed transverse frame is arranged in a triangular shape, the fixed transverse frame is provided with a first butt joint face, a second butt joint face and a third butt joint face, the upper side of the sliding mounting frame is provided with a first wedging assembly, and the lower side of the sliding mounting frame is provided with a second wedging assembly; the first wedging assembly comprises a first sliding unit and a second sliding unit, the second wedging assembly comprises a third sliding unit and a fourth sliding unit, and flexible movement of the cantilever can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring instrument equipment, in particular to a cantilever moving device used for a three-coordinate measuring instrument. Background Art

[0002] A three-coordinate measuring instrument is an instrument that can measure geometric shapes, lengths, and circular divisions within a hexahedral space. It is also called a three-coordinate measuring machine or a three-coordinate measuring bed. A three-coordinate measuring instrument can also be defined as "an instrument with a detector that can move in three directions and can move on three mutually perpendicular guide rails. This detector transmits signals in a contact or non-contact manner. The displacement measurement system of the three axes (such as a grating ruler) calculates the various points (x, y, z) of the workpiece and various functional measurements through a data processor or computer." The measurement functions of a three-coordinate measuring instrument should include dimensional accuracy, positioning accuracy, geometric accuracy, and contour accuracy.

[0003] In the prior art, the cantilever of a three-dimensional coordinate measuring machine is prone to certain errors after long-term use, so it is necessary to provide a three-dimensional coordinate measuring machine with high structural strength. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a cantilever moving device for a three-coordinate measuring instrument, and the specific technical solution is as follows:

[0005] 14. The repairing kit for automotive dents, according to claim 13, wherein the steering wheel is in the form of a button, and the steering column is connected to the steering column by a transmission mechanism, wherein the steering column is fixed with a handwheel, and the steering column is connected with the steering column by a transmission mechanism. The steering column is connected with the steering column by a transmission mechanism, and the steering column is fixedly mounted on the steering column. The steering column has a triangular cross-section, and a side of the fixed cross-section close to the sliding mounting frame is a first docking surface, and adjacent sides of the first docking surface are a second docking surface and a third docking surface, respectively. A first mating component is provided on the upper side of the sliding mounting frame, and a second mating component is provided on the lower side of the sliding mounting frame. The first mating component includes a first sliding unit and a second sliding unit, the first sliding unit is slidably matched with the first docking surface, the second sliding unit is slidably matched with the second docking surface, and the second mating component includes a third sliding unit and a fourth sliding unit, the third sliding unit is slidably matched with the first docking surface, and the fourth sliding unit is slidably matched with the third docking surface.

[0006] Furthermore, the structures of the first sliding unit, the second sliding unit, the third sliding unit, and the fourth sliding unit are the same. The first sliding unit includes a sliding block and a sliding intake pipe. An air cavity is provided inside the sliding block. The sliding intake pipe is installed at the side end of the sliding block and communicates with the air cavity inside the sliding block. An air outlet groove is provided on the surface of the sliding block close to the fixed cross-frame, and the air outlet groove communicates with the air cavity inside the sliding block. High-pressure gas is supplied into the air cavity through the sliding intake pipe and output through the air outlet groove to form an air film between the sliding block and the fixed cross-frame.

[0007] Furthermore, the first sliding unit further includes a ball head mounting rod. A ball head mounting cylinder is provided on the side of the sliding block away from the fixed cross-frame. A ball groove is provided inside the ball head mounting cylinder. The ball head mounting rod is fixedly installed on the fixed cross-frame. The ball head mounting rod is inserted into the ball head mounting cylinder, and the ball head at the end of the ball head mounting rod is embedded in the ball groove.

[0008] Furthermore, an installation notch is provided on the ball head mounting cylinder, and the ball head mounting rod is embedded in the ball head mounting cylinder through the installation notch.

[0009] Furthermore, two second fitting components are provided, and the two second fitting components are slidably matched with the fixed cross-frame.

[0010] Furthermore, the cross-section of the fixed cross-frame is equilateral triangle-shaped, the fixed cross-frame is hollowed out, and reinforcing ribs are provided inside the fixed cross-frame.

[0011] Furthermore, the driving mechanism includes a driving motor, a driving roller, a driven roller, and a driving belt. The driving roller and the driven roller are rotatably arranged on the fixed cross-frame. The driving belt is sleeved on the driving roller and the driven roller. The driving motor is installed at the side end of the fixed cross-frame and is in transmission connection with the driving roller. The driving belt is fixedly connected with the sliding mounting frame.

[0012] Compared with the prior art, the present utility model has the following beneficial effects:

[0013] First: In this solution, the cross-section of the fixed cross-frame is triangular. The side of the fixed cross-frame close to the sliding mounting frame is the first docking surface. The two adjacent sides of the first docking surface are the second docking surface and the third docking surface respectively. A first fitting component is arranged on the upper side of the sliding mounting frame, and a second fitting component is arranged on the lower side of the sliding mounting frame. The first fitting component includes a first sliding unit and a second sliding unit. The first sliding unit is in sliding fit with the first docking surface, and the second sliding unit is in sliding fit with the second docking surface. At this time, the first sliding unit and the second sliding unit cooperate with each other to form an angle that fits with the first docking surface and the second docking surface. The second fitting component includes a third sliding unit and a fourth sliding unit. The third sliding unit is in sliding fit with the first docking surface, and the fourth sliding unit is in sliding fit with the third docking surface. At this time, the third sliding unit and the fourth sliding unit cooperate with each other to form an angle that fits with the first docking surface and the third docking surface. Through the cooperation of the first fitting component and the second fitting component, it can be ensured that the sliding mounting frame is stably slidably arranged on the fixed cross-frame.

[0014] Second; In this solution, an external air source is inserted into the sliding intake pipe. The sliding intake pipe supplies high-pressure gas into the air cavity and outputs it through the air outlet groove to form an air film between the sliding block and the fixed cross-frame. The formed air film is used to lubricate the fixed cross-frame and the sliding mounting frame, thereby reducing the friction between the fixed cross-frame and the sliding mounting frame, and improving the movement stability of the cantilever moving device. Description of the Drawings

[0015] Figure 1 is the three-dimensional structure schematic diagram of the present application;

[0016] Figure 2 is the schematic diagram of the cooperation state of the cantilever and the fixed cross-frame in the present application Figure 1 ;

[0017] Figure 3 is the schematic diagram of the cooperation state of the cantilever and the fixed cross-frame in the present application Figure 2 ;

[0018] Figure 4 is the structure schematic diagram of the sliding mounting frame part in the present application;

[0019] Figure 5 is the split structure schematic diagram of the first sliding unit in the present application;

[0020] Figure 6 is the side view of the fixed cross-frame in the present application;

[0021] Figure 7 is Figure 1 the enlarged structure schematic diagram at A in

[0022] Figure 8 isFigure 3 Schematic enlarged structure diagram at position B in [the figure].

[0023] Reference numerals: mounting table 1, cantilever 2, fixed cross-frame 3, first docking surface 31, second docking surface 32, third docking surface 33, reinforcing rib 34, drive mechanism 4, drive motor 41, driving roller 42, driven roller 43, drive belt 44, sliding mounting frame 5, first fitting assembly 6, first sliding unit 61, sliding block 611, sliding intake pipe 612, air outlet groove 613, ball head mounting cylinder 614, second sliding unit 62, ball head mounting rod 63, second fitting assembly 7, third sliding unit 71, fourth sliding unit 72. Detailed implementation manners

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present invention.

[0025] Generally, the components of the embodiments of the present invention described and shown in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention.

[0026] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "mounting", "connecting", "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0029] The utility model is now further described with reference to the accompanying drawings.

[0030] like Figures 1 to 8 As shown, a cantilever moving device for a three-dimensional coordinate measuring instrument includes a mounting platform 1 and a cantilever 2, and also includes a fixed cross frame 3, a driving mechanism 4 and a sliding mounting frame 5 arranged on the mounting platform 1, wherein the driving mechanism 4 is installed on the fixed cross frame 3, the sliding mounting frame 5 is slidably arranged on the fixed cross frame 3, the driving mechanism 4 is transmission-connected to the sliding mounting frame 5, the cantilever 2 is fixedly installed on the sliding mounting frame 5, and the sliding mounting frame 5 is driven by the driving mechanism 4 to move horizontally on the fixed cross frame 3;

[0031] The cross section of the fixed horizontal frame 3 is triangular, and the side of the fixed horizontal frame 3 close to the sliding mounting frame 5 is a first docking surface 31, and the adjacent two sides of the first docking surface 31 are a second docking surface 32 and a third docking surface 33 respectively;

[0032] In some embodiments, a first mating component 6 is provided on the upper side of the sliding mounting frame 5, and a second mating component 7 is provided on the lower side of the sliding mounting frame 5. The first mating component 6 includes a first sliding unit 61 and a second sliding unit 62. The first sliding unit 61 is slidably matched with the first docking surface 31, and the second sliding unit 62 is slidably matched with the second docking surface 32. At this time, the first sliding unit 61 and the second sliding unit 62 cooperate with each other to form an angle that fits with the first docking surface 31 and the second docking surface 32.

[0033] The second mating component 7 includes a third sliding unit 71 and a fourth sliding unit 72. The third sliding unit 71 is slidably matched with the first docking surface 31, and the fourth sliding unit 72 is slidably matched with the third docking surface 33. At this time, the third sliding unit 71 and the fourth sliding unit 72 cooperate with each other to form an angle that fits with the first docking surface 31 and the third docking surface 33.

[0034] The cooperation between the first fitting component 6 and the second fitting component 7 can ensure that the sliding mounting frame 5 is stably slidably arranged on the fixed horizontal frame 3 .

[0035] In some embodiments, the structures of the first sliding unit 61, the second sliding unit 62, the third sliding unit 71, and the fourth sliding unit 72 are the same. The first sliding unit 61 includes a sliding block 611 and a sliding intake pipe 612. An air cavity is provided inside the sliding block 611. The sliding intake pipe 612 is installed at the side end of the sliding block 611 and is communicated with the air cavity inside the sliding block 611. An air outlet groove 613 is provided on the surface of the sliding block 611 close to the fixed cross frame 3, and the air outlet groove 613 is communicated with the air cavity inside the sliding block 611. During the operation of the device, an external air source is inserted into the sliding intake pipe 612, and the high-pressure gas supplied by the sliding intake pipe 612 enters the air cavity and is output through the air outlet groove 613 to form an air film between the sliding block 611 and the fixed cross frame 3. The formed air film is used to lubricate the fixed cross frame 3 and the sliding mounting frame 5, thereby reducing the friction between the fixed cross frame 3 and the sliding mounting frame 5, and improving the movement stability of the cantilever 2 moving device.

[0036] In some embodiments, the first sliding unit 61 further includes a ball head mounting rod 63. A ball head is provided at the end of the ball head mounting rod 63. A ball head mounting cylinder 614 is provided on the side of the sliding block 611 away from the fixed cross frame 3. A ball groove is provided inside the ball head mounting cylinder 614. The ball head mounting rod 63 is fixedly installed on the fixed cross frame 3. The ball head mounting rod 63 is inserted into the ball head mounting cylinder 614, and the ball head at the end of the ball head mounting rod 63 is embedded in the ball groove. An installation notch is provided on the ball head mounting cylinder 614, and the ball head mounting rod 63 is embedded in the ball head mounting cylinder 614 through the installation notch. Through the above settings, it can be ensured that the sliding block 611 on the first sliding unit 61, the second sliding unit 62, the third sliding unit 71, and the fourth sliding unit 72 can rotate flexibly by a certain angle, so as to ensure that the sliding block 611 can be in a parallel state with the fitting surface of the fixed cross frame 3, thereby further improving the sliding stability of the cantilever 2 moving device.

[0037] In some embodiments, two second fitting components 7 are provided, and the two second fitting components 7 are slidably matched with the fixed cross frame 3. By providing two second fitting components 7 on the lower side of the sliding mounting frame 5, the sliding stability of the cantilever 2 moving device can be further improved.

[0038] In some embodiments, the cross section of the fixed cross frame 3 is arranged in an equilateral triangle. The structure of the equilateral triangle can further improve the structural stability of the fixed cross frame 3 and at the same time improve the cooperation stability between the fixed cross frame 3 and the cantilever 2. The fixed cross frame 3 is provided with a hollow structure, and a reinforcing rib 34 is provided inside the fixed cross frame 3. The hollow structure can reduce the self-weight of the fixed cross frame 3, and on this basis, setting the reinforcing rib 34 can further improve the structural strength of the fixed cross frame 3.

[0039] In some embodiments, the driving mechanism 4 includes a driving motor 41, an active roller 42, a driven roller 43 and a driving belt 44. The active roller 42 and the driven roller 43 are rotatably set on the fixed cross frame 3, and the driving belt 44 is sleeved on the active roller 42 and the driven roller 43. The driving motor 41 is installed on the side end of the fixed cross frame 3 and is transmission-connected to the active roller 42. The driving belt 44 is fixedly connected to the sliding mounting frame 5. The driving motor 41 drives the active roller 42 to rotate, and the driving belt 44 is driven by the active roller 42 to drive the sliding mounting frame 5 to move laterally.

[0040] Alternatively, the driving motor 41 in this solution is a servo motor, and the forward and reverse rotation of the servo motor is used to control the sliding mounting frame 5 to perform lateral reciprocating movement, thereby meeting the movement requirements of the cantilever 2.

[0041] Optionally, the present invention can provide a synchronous wheel on the active roller 42, and a synchronous belt between the synchronous wheel and the output end of the servo motor, wherein the diameter of the synchronous wheel is larger than the diameter of the output end of the servo motor, thereby achieving the effect of deceleration and increasing torque, and improving the control accuracy of the servo motor on the cantilever 2.

[0042] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the claims of the present invention.

Claims

1. A cantilever moving device for a coordinate measuring machine, comprising a mounting table (1) and a cantilever (2), characterized in that, The invention also comprises a fixed cross frame (3), a driving mechanism (4) and a sliding mounting frame (5) arranged on the mounting platform (1); the driving mechanism (4) is installed on the fixed cross frame (3); the sliding mounting frame (5) is slidably arranged on the fixed cross frame (3); the driving mechanism (4) is transmission-connected to the sliding mounting frame (5); the cantilever (2) is fixedly mounted on the sliding mounting frame (5); the cross section of the fixed cross frame (3) is arranged in a triangular shape; the side of the fixed cross frame (3) close to the sliding mounting frame (5) is a first docking surface (31); the adjacent two sides of the first docking surface (31) are respectively a second docking surface (32) and a third docking surface (33); the sliding mounting frame (5) A first mating component (6) is provided on the upper side of the sliding mounting frame (5), and a second mating component (7) is provided on the lower side of the sliding mounting frame (5). The first mating component (6) includes a first sliding unit (61) and a second sliding unit (62). The first sliding unit (61) is slidably matched with the first docking surface (31), and the second sliding unit (62) is slidably matched with the second docking surface (32). The second mating component (7) includes a third sliding unit (71) and a fourth sliding unit (72). The third sliding unit (71) is slidably matched with the first docking surface (31), and the fourth sliding unit (72) is slidably matched with the third docking surface (33).

2. The cantilever moving device for a coordinate measuring machine according to claim 1, characterized in that, The structures of the first sliding unit (61), the second sliding unit (62), the third sliding unit (71) and the fourth sliding unit (72) are the same. The first sliding unit (61) includes a sliding block (611) and a sliding air inlet pipe (612). An air cavity is arranged on the inner side of the sliding block (611). The sliding air inlet pipe (612) is installed at the side end of the sliding block (611) and is connected to the air cavity on the inner side of the sliding block (611). An air outlet groove (613) is arranged on one side of the sliding block (611) close to the fixed cross frame (3). The air outlet groove (613) is connected to the air cavity on the inner side of the sliding block (611). The sliding air inlet pipe (612) supplies high-pressure gas into the air cavity and outputs it through the air outlet groove (613) to form an air film between the sliding block (611) and the fixed cross frame (3).

3. The cantilever moving device for a coordinate measuring machine according to claim 2, wherein The first sliding unit (61) further comprises a ball head mounting rod (63); a ball head mounting tube (614) is arranged on a side of the sliding block (611) away from the fixed cross frame (3); a ball groove is arranged in the ball head mounting tube (614); the ball head mounting rod (63) is fixedly mounted on the fixed cross frame (3); the ball head mounting rod (63) is inserted into the ball head mounting tube (614), and the ball head at the end of the ball head mounting rod (63) is embedded in the ball groove.

4. The cantilever moving device for a coordinate measuring machine according to claim 3, characterized in that, The ball head mounting tube (614) is provided with a mounting notch, and the ball head mounting rod (63) is embedded in the ball head mounting tube (614) through the mounting notch.

5. The cantilever moving device for a coordinate measuring machine according to claim 1, characterized in that, Two second fitting components (7) are provided, and the two second fitting components (7) are slidably matched with the fixed cross frame (3).

6. The cantilever moving device for a coordinate measuring machine according to claim 1, characterized in that, The cross-section of the fixed cross-frame (3) is arranged in an equilateral triangle shape, the fixed cross-frame (3) is arranged in a hollow manner, and reinforcing ribs (34) are arranged inside the fixed cross-frame (3).

7. The cantilever moving device for a coordinate measuring machine according to claim 1, characterized in that, The driving mechanism (4) includes a driving motor (41), a driving roller (42), a driven roller (43) and a driving belt (44). The driving roller (42) and the driven roller (43) are rotatably arranged on the fixed cross-frame (3). The driving belt (44) is sleeved on the driving roller (42) and the driven roller (43). The driving motor (41) is installed at the side end of the fixed cross-frame (3) and is in transmission connection with the driving roller (42). The driving belt (44) is fixedly connected with the sliding mounting frame (5).

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