Three-coordinate measuring machine

Abstract

The utility model relates to the technical field of measuring machines, and discloses a three-coordinate measuring machine, which comprises a base station, and a sliding table is arranged at the top of the base station in a sliding manner; the clamping structure comprises a stand column, a pressing plate, an adjusting screw rod, a first abutting rod and a second abutting rod, the stand column is slidably connected with the sliding table, the pressing plate is slidably connected with the stand column, the adjusting screw rod is rotatably connected with the stand column and is in threaded connection with the pressing plate, the first abutting rod is slidably arranged at the bottom of the pressing plate, and the second abutting rod is rotatably arranged at the bottom of the first abutting rod; an adjusting screw rod is rotated, the adjusting screw rod stirs a pressing plate to vertically ascend and descend along a stand column, a first abutting rod is pulled, a second abutting rod is rotated, the bottom face of the second abutting rod abuts against a workpiece to achieve clamping and fixing of the workpiece, and the clamping position can be flexibly adjusted through sliding of the first abutting rod and rotation of the second abutting rod; and flexible adjustment can be achieved according to the specific shape of a workpiece, the clamping adaptability to the workpiece is higher, and the application range is wider.

Description

Technical Field

[0001] This utility model relates to the field of measuring machine technology, and in particular to a coordinate measuring machine. Background Technology

[0002] Coordinate measuring machines (CMMs) are commonly used measuring instruments. They can quickly and conveniently measure the dimensional parameters of parts that cannot be measured by ordinary measuring instruments, and are also widely used in the processing and production of optical components.

[0003] The prior art discloses a coordinate measuring machine (publication number: CN118031872A), which includes a measuring body; the measuring body includes: a worktable; a Z-axis moving column disposed on the top of the worktable; an X-axis crossbeam fixedly connected to the top of the Z-axis moving column; a Y-axis measuring arm slidably connected to the outer wall of the X-axis crossbeam; and a measuring head fixedly connected to the bottom end of the Y-axis measuring arm.

[0004] In the existing technology, the workpiece is fixed by a clamping cylinder and measured by a measuring head that can move in three axes. The position of the clamping cylinder is fixed, and the workpiece is fixed. It is difficult to adjust the clamping position according to the actual needs of the workpiece, which limits the adaptability of the workpiece clamping and has certain room for optimization.

[0005] Therefore, we propose a coordinate measuring machine. Utility Model Content

[0006] The present invention mainly addresses the technical problem of poor adaptability in fixing the clamping position mentioned above, and provides a coordinate measuring machine.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a coordinate measuring machine, comprising:

[0008] A base is provided with a sliding table on the top of the base. An X-axis guide rail is also fixedly installed on the top of the base. A sliding seat is provided on the X-axis guide rail. A push cylinder is fixedly installed on the top of the sliding seat. A measuring head is fixedly installed on the output shaft of the push cylinder.

[0009] A clamping structure is provided on the top of the slide table for fixing the workpiece. The clamping structure includes a column, a pressure plate, an adjusting screw, a first abutment rod, and a second abutment rod. The column is slidably connected to the slide table, the pressure plate is slidably connected to the column, the adjusting screw is rotatably connected to the column and threadedly connected to the pressure plate, the first abutment rod is slidably provided at the bottom of the pressure plate, and the second abutment rod is rotatably provided at the bottom of the first abutment rod.

[0010] In a preferred embodiment of this utility model, the top surface of the slide table is provided with a sliding groove, and the bottom of the column is provided with an integrally formed protrusion, which is slidably disposed in the sliding groove.

[0011] In a preferred embodiment of this utility model, the top of the pressure plate is provided with a threaded hole, the lower end of the adjusting screw is rotatably connected to the bushing on the right side of the column, and the adjusting screw is connected to the threaded hole of the pressure plate.

[0012] In a preferred embodiment of this utility model, the first abutting rod is a rectangular rod, and a rectangular groove is provided at the bottom of the pressure plate, with the first abutting rod slidably disposed in the rectangular groove.

[0013] In a preferred embodiment of this utility model, a rotating shaft is fixedly provided at the top of the second abutment rod, and a shaft hole is provided on the bottom surface of the first abutment rod, with the rotating shaft rotatably disposed in the shaft hole.

[0014] In a preferred embodiment of the present invention, the clamping structure further includes a pressure head, the top surface of which forms a clamping convex surface and the bottom surface of which forms a clamping concave surface. The pressure head is movably disposed at the end of the second abutment rod and can be flipped to adjust the position of the clamping convex surface.

[0015] In a preferred embodiment of this utility model, the clamping structure further includes a positioning rod, a sliding rod, and an adjustment channel. The end of the second abutment rod has an adjustment channel. The sliding rod is rotatably connected to the positioning rod, and the positioning rod is fixedly connected to the pressure head. The sliding rod is elastically disposed in the adjustment channel, and the positioning rod can be engaged in the adjustment channel.

[0016] In a preferred embodiment of this utility model, the positioning rod is a rectangular rod, the adjustment channel includes a rectangular segment and a circular hole segment that are interconnected, a tension spring is fixedly installed at the end of the slide rod, the tension spring is fixedly connected to the bottom surface of the adjustment channel, the slide rod is slidably disposed in the circular hole segment, and the positioning rod is slidably disposed in the rectangular segment.

[0017] Beneficial effects

[0018] This utility model provides a coordinate measuring machine. It has the following advantages:

[0019] 1. This coordinate measuring machine (CMM) uses two sets of clamping structures symmetrically arranged on the top surface of the slide table. By rotating the adjusting screw, the adjusting screw causes the pressure plate to rise and fall vertically along the column, pulling the first contact rod and rotating the second contact rod. The bottom surface of the second contact rod contacts the workpiece to achieve clamping and fixing. Through the sliding of the first contact rod and the rotation of the second contact rod, the clamping position can be flexibly adjusted according to the specific shape of the workpiece. It has stronger adaptability to workpiece clamping and a wider range of applications.

[0020] 2. In this coordinate measuring machine, the clamping convex surface of the pressure head is formed by an integrally molded arc-shaped protrusion, and the clamping concave surface of the pressure head is formed by opening a groove. By flipping the pressure head, the positions of the clamping convex surface and the clamping concave surface can be interchanged, further improving the adaptability and fixing effect of clamping.

[0021] 3. This coordinate measuring machine, by pulling the pressure head, causes the positioning rod and slide rod to slide within the adjustment channel. When the positioning rod disengages from the rectangular section of the adjustment channel, the pressure head can be rotated. Then, the pressure head is released, and the tension spring pulls the slide rod into the circular hole section of the adjustment channel. The positioning rod is inserted into the rectangular section of the adjustment channel to restrict the pressure head from flipping, thereby adjusting and locking the position of both sides of the pressure head. It has the characteristics of being simple to operate and easy to use. Attached Figure Description

[0022] Figure 1 This is one of the overall perspective views of this utility model;

[0023] Figure 2 This is the second overall perspective view of the present utility model;

[0024] Figure 3 This is a perspective view of the clamping structure of this utility model;

[0025] Figure 4 This is a bottom perspective view of the clamping structure of this utility model;

[0026] Figure 5 This is an assembly drawing of the pressure head and the second contact rod of this utility model.

[0027] Legend: 10. Base; 11. Slide table; 12. X-axis guide rail; 13. Sliding seat; 14. Push cylinder; 15. Measuring head; 20. Column; 21. Pressure plate; 22. Adjusting screw; 23. First contact rod; 24. Second contact rod; 25. Pressure head; 26. Positioning rod; 27. Slide rod; 28. Adjustment channel. Detailed Implementation

[0028] A coordinate measuring machine, such as Figure 1 and Figure 2 As shown, it includes:

[0029] A base 10 is provided, and a slide table 11 is slidably mounted on the top of the base 10. An X-axis guide rail 12 is also fixedly mounted on the top of the base 10. A sliding seat 13 is slidably mounted on the X-axis guide rail 12. A push cylinder 14 is fixedly mounted on the top of the sliding seat 13. A measuring head 15 is fixedly mounted on the output shaft of the push cylinder 14. Specifically, the slide table 11 moves along the base 10 on the Z-axis, the sliding seat 13 moves along the X-axis guide rail 12 on the X-axis, and the push cylinder 14 pushes the measuring head 15 to move vertically, thereby realizing triaxial measurement, which is suitable for the processing and measurement of optical components. The specific control method and usage method of the sliding seat 13 are known existing technologies and will not be described in detail here.

[0030] like Figure 3 and Figure 4As shown, a clamping structure is installed on the top of the slide table 11 to fix the workpiece. The clamping structure includes a column 20, a pressure plate 21, an adjusting screw 22, a first abutment rod 23, and a second abutment rod 24. The column 20 is slidably connected to the slide table 11, the pressure plate 21 is slidably connected to the column 20, the adjusting screw 22 is rotatably connected to the column 20 and threadedly connected to the pressure plate 21, the first abutment rod 23 is slidably arranged at the bottom of the pressure plate 21, and the second abutment rod 24 is rotatably arranged at the bottom of the first abutment rod 23. A groove is formed on the top surface of the slide table 11. The bottom of the column 20 is provided with an integrally formed protrusion, which is slidably disposed in the groove. The top of the pressure plate 21 is provided with a threaded hole. The lower end of the adjusting screw 22 is rotatably connected to the bushing on the right side of the column 20. The adjusting screw 22 is connected to the threaded hole of the pressure plate 21. The first abutting rod 23 is a rectangular rod. The bottom of the pressure plate 21 is provided with a rectangular groove. The first abutting rod 23 is slidably disposed in the rectangular groove. The top of the second abutting rod 24 is fixed with a rotating shaft. The bottom surface of the first abutting rod 23 is provided with a shaft hole. The rotating shaft is rotatably disposed in the shaft hole.

[0031] In this design, two sets of clamping structures are symmetrically arranged on the top surface of the slide table 11. By rotating the adjusting screw 22, the adjusting screw 22 moves the pressure plate 21 vertically up and down along the column 20, pulling the first abutment rod 23 and rotating the second abutment rod 24. The workpiece is clamped and fixed by the bottom surface of the second abutment rod 24 against the workpiece. The clamping position can be flexibly adjusted by the sliding of the first abutment rod 23 and the rotation of the second abutment rod 24. It can be flexibly adjusted according to the specific shape of the workpiece, making it more adaptable to workpiece clamping and with a wider range of applications.

[0032] like Figure 4 and Figure 5 As shown, the clamping structure also includes a pressure head 25, the top surface of which forms a clamping convex surface and the bottom surface of which forms a clamping concave surface. The pressure head 25 is movably disposed at the end of the second contact rod 24 and can be flipped to adjust the position of the clamping convex surface. The clamping structure also includes a positioning rod 26, a sliding rod 27, and an adjustment channel 28. The end of the second contact rod 24 is provided with an adjustment channel 28. The sliding rod 27 is rotatably connected to the positioning rod 26, and the positioning rod 26 is fixedly connected to the pressure head 25. The sliding rod 27 is elastically disposed in the adjustment channel 28, and the positioning rod 26 can be inserted into the adjustment channel 28. The positioning rod 26 is a rectangular rod. The adjustment channel 28 includes a rectangular section and a circular hole section that are interconnected. A tension spring is fixedly installed at the end of the sliding rod 27 and is fixedly connected to the bottom surface of the adjustment channel 28. The sliding rod 27 is slidably disposed in the circular hole section, and the positioning rod 26 is slidably disposed in the rectangular section.

[0033] In this solution, considering that the workpiece may have a concave or convex surface, when clamping the concave surface, using the clamping head 25 to clamp the convex surface will obviously have a better fixing effect on the workpiece. When clamping the convex surface of the workpiece, the clamping head 24 can be used to clamp the concave surface. The clamping convex surface of the clamping head 25 is formed by an integrally formed arc-shaped protrusion, and the clamping concave surface of the clamping head 25 is formed by opening a groove. By flipping the clamping head 25, the positions of the clamping convex surface and the clamping concave surface can be interchanged, further improving the adaptability and fixing effect of clamping.

[0034] To achieve the interchange of the two sides of the pressure head 25, by pulling the pressure head 25, the pressure head 25 drives the positioning rod 26 and the slide rod 27 to slide within the adjustment channel 28. After the positioning rod 26 disengages from the rectangular section of the adjustment channel 28, the pressure head 25 can be rotated. Then, the pressure head 25 is released, and the tension spring pulls the slide rod 27 into the circular hole section of the adjustment channel 28. The positioning rod 26 is inserted into the rectangular section of the adjustment channel 28 to restrict the flipping of the pressure head 25. This allows for the adjustment and locking of the two sides of the pressure head 25, which is simple to operate and easy to use.

[0035] The working principle of this utility model is as follows: Rotating the adjusting screw 22 causes the pressure plate 21 to move vertically up and down along the column 20, pulling the first abutment rod 23 and rotating the second abutment rod 24. The bottom surface of the second abutment rod 24 abuts against the workpiece to clamp and fix the workpiece. The clamping position can be flexibly adjusted by sliding the first abutment rod 23 and rotating the second abutment rod 24. Pulling the pressure head 25 causes the positioning rod 26 and the slide rod 27 to slide in the adjusting channel 28. When the positioning rod 26 disengages from the rectangular section of the adjusting channel 28, the pressure head 25 can be rotated. Then, the pressure head 25 is released, and the tension spring pulls the slide rod 27 into the circular hole section of the adjusting channel 28. The positioning rod 26 is inserted into the rectangular section of the adjusting channel 28 to restrict the pressure head 25 from flipping, thereby adjusting and locking the position of the two sides of the pressure head 25. By flipping the pressure head 25, the positions of the clamping convex surface and the clamping concave surface are interchanged, which better clamps the concave and convex surfaces of the workpiece.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A three-coordinate measuring machine, characterized in that, Include: The base (10), the top of the base (10) is slidably provided with a sliding table (11), the top of the base (10) is also fixedly provided with an X-axis guide rail (12), the X-axis guide rail (12) is slidably provided with a sliding seat (13), the top of the sliding seat (13) is fixedly provided with a push cylinder (14), the output shaft of the push cylinder (14) is fixedly provided with a measuring head (15); The clamping structure is arranged on the top of the sliding table (11) and used for fixing the workpiece, and the clamping structure comprises a stand column (20), a pressing plate (21), an adjusting screw (22), a first abutting rod (23) and a second abutting rod (24), the stand column (20) is slidably connected with the sliding table (11), the pressing plate (21) is slidably connected with the stand column (20), the adjusting screw (22) is rotatably connected with the stand column (20) and threadedly connected with the pressing plate (21), the bottom of the pressing plate (21) is slidably provided with the first abutting rod (23), and the bottom of the first abutting rod (23) is rotatably provided with the second abutting rod (24).

2. The coordinate measuring machine according to claim 1, characterized in that: The top surface of the sliding table (11) is provided with a sliding groove, the bottom of the stand column (20) is provided with a protrusion formed integrally, and the protrusion is slidably arranged in the sliding groove.

3. The coordinate measuring machine of claim 1, wherein: The top of the pressing plate (21) is provided with a threaded hole, the lower end of the adjusting screw (22) is rotatably connected with the shaft sleeve on the right side of the stand column (20), and the adjusting screw (22) is connected with the threaded hole of the pressing plate (21).

4. The coordinate measuring machine of claim 1, wherein: The first abutting rod (23) is a rectangular rod body, the bottom of the pressing plate (21) is provided with a rectangular groove, and the first abutting rod (23) is slidably arranged in the rectangular groove.

5. The coordinate measuring machine of claim 1, wherein: The top of the second abutting rod (24) is fixedly provided with a rotating shaft, the bottom surface of the first abutting rod (23) is provided with a shaft hole, and the rotating shaft is rotatably arranged in the shaft hole.

6. The coordinate measuring machine of claim 1, wherein: The clamping structure further comprises a pressing head (25), the top surface of the pressing head (25) forms a clamping convex surface, the bottom surface of the pressing head (25) forms a clamping concave surface, the pressing head (25) is movably arranged at the end of the second abutting rod (24) and can be flipped to adjust the position of the clamping convex surface.

7. The coordinate measuring machine according to claim 6, characterized in that: The clamping structure further comprises a positioning rod (26), a sliding rod (27) and an adjusting channel (28), the end of the second abutting rod (24) is provided with the adjusting channel (28), the sliding rod (27) is rotatably connected with the positioning rod (26), the positioning rod (26) is fixedly connected with the pressing head (25), the sliding rod (27) is elastically arranged in the adjusting channel (28), and the positioning rod (26) can be clamped into the adjusting channel (28).

8. The coordinate measuring machine according to claim 7, characterized in that: The positioning rod (26) is a rectangular rod, the adjusting channel (28) comprises a rectangular section and a circular hole section which are in communication with each other, the end of the sliding rod (27) is fixedly provided with a tension spring, the tension spring is fixedly connected with the inner bottom surface of the adjusting channel (28), the sliding rod (27) is slidably arranged in the circular hole section, and the positioning rod (26) is slidably arranged in the rectangular section.

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