High-stability three-coordinate measuring machine

Abstract

The invention relates to the technical field of industrial size measuring equipment, in particular to a high-stability three-coordinate measuring machine which comprises an X-axis assembly arranged on a Z-axis assembly, an auxiliary support arranged at the bottom of the X-axis assembly on the opposite side of the Z-axis assembly, a probe base arranged on the X-axis assembly, and Z-axis side seats arranged on the two sides of a Z-axis base. The sliding stability of the Z-axis supporting column on the sliding bottom plate can be improved, in order to reduce friction between the Z-axis base and the sliding bottom plate and between the Z-axis side seat and the sliding bottom plate, the Z-axis base and the sliding bottom plate are arranged at intervals, an air floating seat is arranged in the interval space, and when the Z-axis supporting column needs to move on the sliding bottom plate, the Z-axis supporting column can move on the sliding bottom plate. The air floating base blows air to the sliding bottom plate, the Z-axis base and the Z-axis side base are supported to leave the sliding base, and therefore in the process that the Z-axis base and the Z-axis side base slide along the sliding base, friction losses between the Z-axis base and the sliding base and between the Z-axis side base and the sliding base are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of industrial dimension measuring equipment, in particular to a high-stability three-dimensional coordinate measuring machine. Background Art

[0002] The three-dimensional coordinate measuring machine is an industrial measuring instrument, which is widely used in the machinery, electronics, instrumentation, plastics and other industries. The three-dimensional coordinate measuring machine can obtain the dimensional data of the measured object, can replace a variety of surface measurement tools, and shorten the measurement time of complex measurement tasks from hours to minutes. It is one of the indispensable measuring equipment in modern industry. In the field of traditional three-dimensional coordinate measuring equipment, the equipment is usually large in size, especially in the movement process in the Z axis, the sliding friction generated is large. After long-term use, due to the external debris entering the sliding track of the Z axis, the friction on the Z axis is increased, which will inevitably cause wear of the sliding connection on the Z axis, thereby affecting the measurement accuracy, especially for the impact of precision measurement. This requires the design of a new mobile structure based on the existing technology to avoid equipment damage caused by traditional friction and ensure the stability of measurement. Therefore, a high-stability three-dimensional coordinate measuring machine is needed. Summary of the invention

[0003] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a high-stability three-dimensional coordinate measuring machine, so as to solve the problem of the stability of the three-dimensional coordinate measuring machine in the prior art.

[0004] To achieve the above objectives and other related objectives, the present invention provides the following technical solutions:

[0005] A high-stability three-coordinate measuring machine, comprising:

[0006] A machine platform, wherein a Z-axis assembly is slidably connected to one side of the machine platform, an X-axis assembly is arranged on the Z-axis assembly, and an auxiliary bracket is also arranged at the bottom of the X-axis assembly on the opposite side of the Z-axis assembly;

[0007] The Z-axis assembly includes a Z-axis support and a Z-axis base disposed between the bottom of the Z-axis support and the sliding base plate, Z-axis side seats are also disposed on both sides of the Z-axis base, and the Z-axis side seats cover the end surfaces of both sides of the sliding base plate, and the Z-axis base and the Z-axis side seats are spaced apart from the sliding base plate, an air floating seat is disposed in the space between the Z-axis base and the Z-axis side seat and the sliding base, and a Z-axis air hole communicating with the air floating seat is disposed on the Z-axis base and the Z-axis side seat;

[0008] A probe base is arranged on the X-axis assembly.

[0009] To implement the above technical solution, Z-axis side seats are further provided on both sides of the Z-axis base, and the Z-axis side seats are used to cover the end surfaces on both sides of the sliding base, which can guide the sliding of the Z-axis support and improve the sliding stability of the Z-axis support on the sliding base. In order to reduce the friction between the Z-axis base, the Z-axis side seats and the sliding base, the Z-axis base, the Z-axis side seats and the sliding base are now spaced apart, and an air floating seat is provided in the spaced apart space. When the Z-axis support needs to move on the sliding base, the air floating seat blows air onto the sliding base to support the Z-axis base and the Z-axis side seats away from the sliding base. In this way, no friction will be generated during the sliding of the Z-axis base and the Z-axis side seats along the sliding base, thereby reducing the friction loss between the Z-axis base, the Z-axis side seats and the sliding base, and improving the sliding stability of the Z-axis base and the Z-axis side seats on the sliding base.

[0010] In one embodiment of the present invention, a Z-axis sliding mechanism is provided in the machine platform at the bottom of the Z-axis assembly, and the Z-axis sliding mechanism includes a sliding bottom plate connected to the machine platform, and the sliding bottom plate is a rectangular bottom plate, and two groups of cover support plates are provided at both ends along the length direction of the rectangular plate, and rectangular plates are extended from both sides and the upper side of the two groups of cover support plates, and two groups of support rods are symmetrically provided on the upper sides of the two groups of cover support plates, and both ends of the two groups of support rods extend out of the cover support plates, and both ends of the two groups of support rods are also provided with a bottom plate cover covering the cover support plate, and the two ends of the two groups of support rods are pressed tightly against the inner wall of the bottom plate cover.

[0011] To implement the above technical solution, by making the sliding base plate into a rectangular base plate, the Z-axis can be used to guide the movement in the Z-axis direction, thereby ensuring the stability of sliding along the Z-axis direction; by arranging two groups of base plate covers at both ends along the length direction of the rectangular plate, the two ends of the sliding base plate can be covered, thereby preventing foreign matter from entering the sliding surface of the sliding base plate from both ends of the sliding base plate, thereby ensuring the cleanliness of the sliding surface of the sliding base plate and reducing the sliding friction on the sliding base plate; by arranging a cover support plate in conjunction with a support rod, the support rod can be used to provide a stable support for the base plate cover, thereby ensuring the stability of the base plate cover in use.

[0012] In one embodiment of the present invention, the air floating seat located between the side surface of the sliding base plate and the Z-axis side seat is a rectangular air floating seat, and the air floating seat located between the Z-axis base and the sliding base is a group of circular air floating seats and a group of rectangular air floating seats.

[0013] To implement the above technical solution, the air floating seat between the side of the sliding base plate and the Z-axis side seat is a rectangular air floating seat, so that the rectangular air floating seat can be used to improve the sliding stability between the side of the sliding base plate and the Z-axis side seat during the sliding process, and after the sliding is completed, the rectangular air floating seat can increase the contact area with the side of the sliding base, thereby improving the support stability of the Z-axis base. By installing a group of circular air floating seats and a group of rectangular air floating seats between the Z-axis base and the sliding base, the support stability between the Z-axis base and the sliding base can be guaranteed, and the convenience of movement can be improved during the movement, and the friction between the Z-axis base and the sliding base can be reduced.

[0014] In one embodiment of the present invention, a Z-axis drive belt is arranged inside the machine on one side of the sliding base plate, and the Z-axis drive belt is spaced apart from the sliding base plate. A support rod support plate is arranged on the cover support plate on the side close to the Z-axis drive belt, and the support rod support plate extends to the upper side of the Z-axis drive belt, and the bottom of the support rod support plate is spaced apart from the Z-axis drive belt.

[0015] To implement the above technical solution, by setting a spacing between the Z-axis drive belt and the sliding base plate, friction and conflict between the Z-axis drive belt and the sliding base plate during use can be avoided, so as to ensure the stability of the Z-axis drive belt. By extending the support rod and support plate to the upper side of the Z-axis drive belt, it can provide support for the support rod while enabling the base plate cover to cover the Z-axis drive belt, thereby ensuring the stability of the Z-axis drive belt. By setting a spacing between the bottom of the support rod and support plate and the Z-axis drive belt, it can be avoided that the support rod and support plate affect the running stability of the Z-axis drive belt, thereby ensuring the stability of the Z-axis drive belt, thereby improving the stability of the Z-axis support.

[0016] In one embodiment of the present invention, the two groups of cover shell support plates are both provided with a cover shell support plate on the side away from the sliding bottom plate, and the cover shell support plate is arranged flush with the support rod in the horizontal direction, and an auxiliary support plate extending upward is arranged at the end of the cover shell support plate flush with the support rod to support the bottom plate cover shell, and a belt driving member is also arranged on one side of the Z-axis drive belt, and the cover shell support plate is located on the upper side of the belt driving member.

[0017] To implement the above technical solution, by setting a cover support plate, the cover support plate can be used to improve the supporting stability of the base cover, and the cover support plate is set flush with the support rod in the horizontal direction, so that the cover support plate can cooperate with the support rod to support the base cover, thereby improving the supporting reliability, and the cover support plate is located on the upper side of the belt drive, which can improve the use stability of the belt drive and avoid the resonance effect of the belt drive on the base cover during use.

[0018] In one embodiment of the present invention, the X-axis assembly includes an X-beam, an X-axis air floating base is arranged between the probe base and the X-beam, an X-axis base connecting platform is arranged on the X-axis air floating base, the probe base is detachably connected to the X-axis base connecting platform, the side surface of the X-axis air floating base located on one side of the X-axis base connecting platform is a rectangular side surface, the side surface of the X-axis air floating base located on the side away from the base connecting platform is a T-shaped side surface, the X-axis air floating base is a circular base, and the X-axis air floating base is arranged along the outer contour of the probe base between the inner wall of the probe base and the X-beam.

[0019] To implement the above technical solution, an X-axis air floating base is provided between the probe base and the X-beam, the X-axis air floating base is used to drive the probe base to slide along the axial direction of the X-beam, and the probe base is detachably connected to the X-axis base connecting platform, so that the use convenience of the probe base can be improved. The side surface of the X-axis air floating base located on one side of the X-axis base connecting platform is a rectangular side surface, which can ensure the support stability of the probe base while also improving the contact area between the X-axis air floating base and the X-beam, thereby improving the stability and reliability of the X-axis air floating base sliding along the X-beam. The side surface of the X-axis air floating base located on the side away from the base connecting platform is a T-shaped side surface. Since the T-shaped side surface does not need to bear the probe base, it is only necessary to consider reducing the mass of the X-axis air floating base as much as possible while ensuring the stability of the X-axis air floating base in use during design, thereby improving the sliding reliability between the X-axis air floating base and the X-beam, and the support stability in a non-sliding state.

[0020] In one embodiment of the present invention, an X-beam connecting plate is arranged between one end of the X-beam and the top of the Z-axis support, the X-beam connecting plate is a right-angle connecting plate, the bottom end surface of the X-beam connecting plate is connected to the Z-axis support by bolts, the side end surface of the X-beam connecting plate is connected to the X-beam by bolts, an X-beam driving member is arranged on the top of the Z-axis support and one side of the X-beam connecting plate, an X-beam driving belt is arranged between the movable end of the X-beam driving member and the probe base, and the X-beam driving belt is arranged at an interval between the side surface of the X-beam.

[0021] To implement the above technical solution, by setting the X-beam connecting plate as a right-angle connecting plate, the connection reliability between the X-beam and the top of the Z-axis support can be improved, and the side end face of the X-beam connecting plate and the X-beam are connected by bolts, and the bottom end face of the X-beam connecting plate and the Z-axis support are connected by bolts. Two sets of bolts can be used to connect the side end face of the X-beam connecting plate and the X-beam, and the bottom end face of the X-beam connecting plate and the Z-axis support respectively, which can improve the connection reliability of the X-beam connecting plate, and disperse the positions of the bolt holes on the X-beam connecting plate, thereby improving the use strength of the X-beam connecting plate, avoiding the bolt holes from being concentrated in one position of the X-beam connecting plate, thereby affecting the use stability of the X-beam connecting plate, and setting the X-beam driving belt and the side of the X-beam at intervals. During the use of the X-beam driving belt, the influence of the X-beam on the X-beam driving belt can be reduced.

[0022] In one embodiment of the present invention, X-beam covers are further provided at both ends of the X-beam, and the X-beam covers are both convexly provided in the direction away from the X-beam, a reinforcing plate is provided in the convex space to improve the supporting reliability of the X-beam cover, and a cover bracket is further provided in the X-beam cover and between the X-beam, the cover bracket is detachably connected to the side of the X-beam, and a cover reinforcing plate is provided on the side of the cover bracket away from the X-beam.

[0023] To implement the above technical scheme, by setting an X-beam cover, it is possible to prevent external debris from affecting the running stability of the X-beam drive belt, and by setting the X-beam cover to be raised in the direction away from the X-beam, the supporting coverage of the X-beam cover can be improved, and by setting a reinforcing plate in the raised space, the supporting reliability of the X-beam cover can be improved. A cover bracket is also provided in the X-beam cover and between the X-beam, and the provision of the cover bracket can improve the connection stability between the X-beam cover and the X-beam. The detachable connection between the cover bracket and the side of the X-beam can improve the use convenience of the cover bracket, and a cover reinforcement plate is provided on the side of the cover bracket away from the X-beam, so that the cover reinforcement plate can be used in conjunction with the cover bracket to improve the supporting stability of the cover bracket away from the side of the X-beam.

[0024] In one embodiment of the present invention, an X-axis cover covering the X-beam is provided on the X-beam, the probe base extends to the upper end surface of the X-axis cover, and the cover shell bracket is provided between the X-beam cover shell and the X-axis cover.

[0025] To implement the above technical solution, by setting an X-axis cover, it is possible to prevent external debris from entering the X-beam and causing an impact, thereby reducing the sliding friction on the X-beam; extending the probe base to the upper end face of the X-axis cover can improve the reliability of the probe base; and setting the cover shell bracket between the X-beam cover and the X-axis cover can use the cover shell bracket to improve the stability between the X-beam cover and the X-axis cover.

[0026] In one embodiment of the present invention, the top of the auxiliary bracket is detachably connected to the X-beam.

[0027] Implementing the above technical solution and making the top of the auxiliary bracket and the X-beam detachable can improve the convenience and reliability of the auxiliary bracket.

[0028] As described above, a high-stability three-dimensional coordinate measuring machine of the present invention has the following beneficial effects: by also arranging Z-axis side seats on both sides of the Z-axis base, and using the Z-axis side seats to cover the end surfaces on both sides of the sliding base plate, it can play a guiding role in the sliding of the Z-axis support, and can improve the sliding stability of the Z-axis support on the sliding base plate. In order to reduce the friction between the Z-axis base and the Z-axis side seats and the sliding base plate, the Z-axis base and the Z-axis side seats are now spaced apart from the sliding base plate, and an air floating seat is arranged in the spaced apart space. When the Z-axis support needs to move on the sliding base plate, the air floating seat blows air onto the sliding base plate to support the Z-axis base and the Z-axis side seats away from the sliding base. In this way, no friction will be generated during the sliding process of the Z-axis base and the Z-axis side seats along the sliding base, thereby reducing the friction loss between the Z-axis base and the Z-axis side seats and the sliding base, and improving the sliding stability of the Z-axis base and the Z-axis side seats on the sliding base. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Shown is a schematic structural diagram of a high-stability three-coordinate measuring machine disclosed in an embodiment of the present invention.

[0030] Figure 2 Shown is a schematic diagram of the probe base structure of a high-stability three-dimensional coordinate measuring machine disclosed in an embodiment of the present invention.

[0031] Figure 3 Display as Figure 2 A partial enlarged view of the figure marked A.

[0032] Figure 4 Display as Figure 2 A partial enlarged view of the figure marked B.

[0033] Figure 5 Shown is a schematic diagram of the X-beam structure of a high-stability three-dimensional coordinate measuring machine disclosed in an embodiment of the present invention.

[0034] Figure 6 Display as Figure 5 A partial enlarged view of the figure marked C.

[0035] Figure 7 Shown is a schematic diagram of the structure of a cover reinforcement plate of a high-stability three-dimensional coordinate measuring machine disclosed in an embodiment of the present invention.

[0036] Figure 8 Display as Figure 7 A partial enlarged view of the figure marked D.

[0037] Fig. 9 Shown is a schematic diagram of the X-beam cover structure of a high-stability three-dimensional coordinate measuring machine disclosed in an embodiment of the present invention.

[0038] Fig.10 Display as Fig. 9 A partial enlarged view of the figure marked E.

[0039] Component number description

[0040] 1. Machine table; 2. Auxiliary bracket; 3. Z-axis support; 4. Z-axis base; 5. Z-axis side seat; 6. Air floating seat; 7. Z-axis air hole; 8. Probe base; 9. Sliding bottom plate; 10. Cover support plate; 11. Support rod; 12. Bottom cover; 13. Z-axis drive belt; 14. Support rod support plate; 15. Cover support plate; 16. Auxiliary support plate; 17. Belt drive member; 18. X-beam; 19. X-axis cover; 20. X-axis air floating base; 21. X-axis base connecting platform; 22. X-beam connecting plate; 23. X-beam driving member; 24. X-beam driving belt; 25. X-beam cover; 26. Cover bracket; 27. Cover reinforcement plate; 28. Round base. DETAILED DESCRIPTION

[0041] The following specific embodiments illustrate the implementation of the present invention, and those familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0042] See also Figures 1 to 10 The present invention provides a high-stability three-dimensional coordinate measuring machine, including a Z-axis component slidably connected to one side of a machine table 1, an X-axis component is arranged on the Z-axis component, an auxiliary bracket 2 is also arranged at the bottom of the X-axis component on the opposite side of the Z-axis component, the Z-axis component includes a Z-axis support 3 and a Z-axis base 4 arranged between the bottom of the Z-axis support 3 and a sliding base plate 9, Z-axis side seats 5 are also arranged on both sides of the Z-axis base 4, the Z-axis side seats 5 cover the end surfaces on both sides of the sliding base plate 9, and the Z-axis base 4 and the Z-axis side seats 5 are arranged at intervals with the sliding base plate 9, an air floating seat 6 is arranged in the interval space between the Z-axis base 4 and the Z-axis side seats 5 and the sliding base, a Z-axis air hole 7 connected to the air floating seat 6 is arranged on the Z-axis base 4 and the Z-axis side seats 5, and a probe base 8 is arranged on the X-axis component.

[0043] By also arranging Z-axis side seats 5 on both sides of the Z-axis base 4 and covering the end surfaces of both sides of the sliding base plate 9 with the Z-axis side seats 5, it is possible to guide the sliding of the Z-axis support 3 and improve the sliding stability of the Z-axis support 3 on the sliding base plate 9. In order to reduce the friction between the Z-axis base 4 and the Z-axis side seats 5 and the sliding base plate 9, the Z-axis base 4 and the Z-axis side seats 5 are now spaced apart from the sliding base plate 9, and an air floating seat 6 is arranged in the spaced apart space. When the Z-axis support 3 needs to move on the sliding base plate 9, the air floating seat 6 blows air onto the sliding base plate 9 to support the Z-axis base 4 and the Z-axis side seats 5 to leave the sliding base. In this way, no friction will be generated during the sliding process of the Z-axis base 4 and the Z-axis side seats 5 along the sliding base, thereby reducing the friction loss between the Z-axis base 4 and the Z-axis side seats 5 and the sliding base, and improving the sliding stability of the Z-axis base 4 and the Z-axis side seats 5 on the sliding base.

[0044] A Z-axis sliding mechanism is arranged in the machine table 1 at the bottom of the Z-axis assembly, and the Z-axis sliding mechanism includes a sliding base plate 9 connected to the machine table 1, and the sliding base plate 9 is a rectangular base plate. Two groups of cover support plates 10 are arranged at both ends along the length direction of the rectangular plate, and the two groups of cover support plates 10 have rectangular plate settings extending from both sides and the upper side, and two groups of support rods 11 are symmetrically arranged on the upper sides of the two groups of cover support plates 10, and both ends of the two groups of support rods 11 extend from the cover support plates 10, and both ends of the two groups of support rods 11 are also provided with a base plate cover 12 covering the cover support plates 10, and the two ends of the two groups of support rods 11 are pressed tightly against the inner wall of the base plate cover 12.

[0045] By making the sliding base plate 9 into a rectangular base plate, the Z axis can be used to guide the movement in the Z-axis direction to ensure the stability of sliding along the Z-axis direction. By arranging two groups of base cover shells 12 at both ends of the rectangular plate in the length direction, the two ends of the sliding base plate 9 can be covered, thereby preventing foreign matter from entering the sliding surface of the sliding base plate 9 from both ends of the sliding base plate 9, ensuring the cleanliness of the sliding surface of the sliding base plate 9, and reducing the sliding friction on the sliding base plate 9. By arranging a cover support plate 10 in conjunction with the support rod 11, the support rod 11 can be used to provide a stable support for the base cover shell 12, thereby ensuring the stability of the base cover shell 12 in use.

[0046] The air floating seat 6 located between the side surface of the sliding base plate 9 and the Z-axis side seat 5 is a rectangular air floating seat 6, and the air floating seat 6 located between the Z-axis base 4 and the sliding base is a group of circular air floating seats 6 and a group of rectangular air floating seats 6. By using the air floating seat 6 between the side surface of the sliding base plate 9 and the Z-axis side seat 5 as a rectangular air floating seat 6, the rectangular air floating seat 6 can be used to improve the sliding stability between the side surface of the sliding base plate 9 and the Z-axis side seat 5 during the sliding process, and after the sliding is completed, the rectangular air floating seat 6 can increase the contact area with the side surface of the sliding base plate 9, thereby improving the support stability of the Z-axis base 4. By using the air floating seat 6 between the Z-axis base 4 and the sliding base as a group of circular air floating seats 6 and a group of rectangular air floating seats 6, the support stability between the Z-axis base 4 and the sliding base can be guaranteed, and the convenience of movement can be improved during the movement, and the friction between the Z-axis base 4 and the sliding base can be reduced.

[0047] A Z-axis drive belt 13 is arranged inside the machine 1 on one side of the sliding base plate 9, and the Z-axis drive belt 13 is spaced apart from the sliding base plate 9. A support rod support plate 14 is arranged on the cover support plate 10 on the side close to the Z-axis drive belt 13, and the support rod support plate 14 extends to the upper side of the Z-axis drive belt 13, and the bottom of the support rod support plate 14 is spaced apart from the Z-axis drive belt 13.

[0048] By setting a spacing between the Z-axis drive belt 13 and the sliding base plate 9, friction and conflict between the Z-axis drive belt 13 and the sliding base plate 9 during use can be avoided, so as to ensure the stability of the Z-axis drive belt 13. By extending the support rod support plate 14 to the upper side of the Z-axis drive belt 13, it can provide support for the support rod 11 while enabling the base plate cover 12 to cover the Z-axis drive belt 13, so as to ensure the stability of the Z-axis drive belt 13. By setting a spacing between the bottom of the support rod support plate 14 and the Z-axis drive belt 13, it can be avoided that the support rod support plate 14 affects the running stability of the Z-axis drive belt 13, so as to ensure the stability of the Z-axis drive belt 13, thereby improving the stability of the Z-axis support 3.

[0049] The two groups of cover support plates 10 are both provided with a cover support plate 15 on the side away from the sliding base plate 9. The cover support plate 15 is arranged flush with the support rod 11 in the horizontal direction, and an upwardly extending auxiliary support plate 16 is arranged at the end of the cover support plate 15 flush with the support rod 11 to support the base cover 12. A belt driving member 17 is also arranged on one side of the Z-axis driving belt 13, and the cover support plate 15 is located on the upper side of the belt driving member 17.

[0050] By setting the cover support plate 10, the cover support plate 10 can be used to improve the support stability of the bottom plate cover 12, and the cover support plate 15 is set flush with the support rod 11 in the horizontal direction, so that the cover support plate 15 can cooperate with the support rod 11 to support the bottom plate cover 12, thereby improving the support reliability, and the cover support plate 15 is located on the upper side of the belt drive 17, which can improve the use stability of the belt drive 17 and avoid the resonance effect of the belt drive 17 on the bottom plate cover 12 during use.

[0051] The X-axis assembly includes an X-beam 18, an X-axis air-floating base 20 is arranged between the probe base 8 and the X-beam 18, an X-axis base connecting platform 21 is arranged on the X-axis air-floating base 20, the probe base 8 is detachably connected to the X-axis base connecting platform 21, the side of the X-axis air-floating base 20 located on one side of the X-axis base connecting platform 21 is a rectangular side, and the side of the X-axis air-floating base 20 located on the side away from the base connecting platform is a T-shaped side. The X-axis air-floating base 20 is a circular base 28, and the X-axis air-floating base 20 is arranged along the outer contour of the probe base 8 between the inner wall of the probe base 8 and the X-beam 18.

[0052] By arranging an X-axis air-floating base 20 between the probe base 8 and the X-beam 18, the X-axis air-floating base 20 is used to drive the probe base 8 to slide along the axial direction of the X-beam 18, and the probe base 8 is detachably connected to the X-axis base connecting platform 21, the convenience of using the probe base 8 can be improved, and the side surface of the X-axis air-floating base 20 located on one side of the X-axis base connecting platform 21 is a rectangular side surface, which can ensure the support stability of the probe base 8 and improve the contact between the X-axis air-floating base 20 and the X-beam 18. The area is increased, thereby improving the stability and reliability of the X-axis air floating base 20 sliding along the X-beam 18. The side of the X-axis air floating base 20 located away from the side of the base connection is a T-shaped side. Since the T-shaped side does not need to bear the probe base 8, it is only necessary to consider reducing the mass of the X-axis air floating base 20 as much as possible while ensuring the stability of the X-axis air floating base 20 during design, thereby improving the sliding reliability between the X-axis air floating base 20 and the X-beam 18, as well as the support stability in the non-sliding state.

[0053] An X-beam connecting plate 22 is arranged between one end of the X-beam 18 and the top of the Z-axis support 3. The X-beam connecting plate 22 is a right-angle connecting plate. The bottom end surface of the X-beam connecting plate 22 is connected to the Z-axis support 3 by bolts, and the side end surface of the X-beam connecting plate 22 is connected to the X-beam 18 by bolts. An X-beam driving component 23 is arranged on the top of the Z-axis support 3 and one side of the X-beam connecting plate 22. An X-beam driving belt 24 is arranged between the movable end of the X-beam driving component 23 and the probe base 8, and the X-beam driving belt 24 is arranged at an interval between the side surface of the X-beam 18.

[0054] By setting the X-beam connecting plate 22 as a right-angle connecting plate, the connection reliability between the X-beam 18 and the top of the Z-axis support 3 can be improved. The side end face of the X-beam connecting plate 22 and the X-beam 18 are connected by bolts, and the bottom end face of the X-beam connecting plate 22 and the Z-axis support 3 are connected by bolts. Two sets of bolts can be used to connect the side end face of the X-beam connecting plate 22 and the X-beam 18, and the bottom end face of the X-beam connecting plate 22 and the Z-axis support 3 respectively, which can improve the connection reliability of the X-beam connecting plate 22, and disperse the positions of the bolt holes on the X-beam connecting plate 22, thereby improving the use strength of the X-beam connecting plate 22, avoiding the bolt holes from being concentrated at one position of the X-beam connecting plate 22, thereby affecting the use stability of the X-beam connecting plate 22, and setting the X-beam driving belt 24 and the side of the X-beam 18 at intervals. During the use of the X-beam driving belt 24, the influence of the X-beam 18 on the X-beam driving belt 24 can be reduced.

[0055] X-beam covers 25 are also provided at both ends of the X-beam 18. The X-beam covers 25 are all raised in the direction away from the X-beam 18. A reinforcing plate is provided in the raised space to improve the supporting reliability of the X-beam cover 25. A cover bracket 26 is also provided inside the X-beam cover 25 and between the X-beam 18. The cover bracket 26 is detachably connected to the side of the X-beam 18. A cover reinforcing plate 27 is provided on the side of the cover bracket 26 away from the X-beam 18.

[0056] By providing an X-beam cover 25, it is possible to prevent external debris from affecting the running stability of the X-beam drive belt 24. By providing the X-beam cover 25 in a raised manner away from the X-beam 18, the support coverage of the X-beam cover 25 can be improved. By providing a reinforcing plate in the raised space, the support reliability of the X-beam cover 25 can be improved. A cover bracket 26 is also provided inside the X-beam cover 25 and between the X-beam 18. The provision of the cover bracket 26 can improve the connection stability between the X-beam cover 25 and the X-beam 18. The detachable connection between the cover bracket 26 and the side of the X-beam 18 can improve the ease of use of the cover bracket 26. A cover reinforcement plate 27 is provided on the side of the cover bracket 26 away from the X-beam 18. The cover reinforcement plate 27 can be used in conjunction with the cover bracket 26 to improve the support stability of the cover bracket 26 on the side away from the X-beam 18.

[0057] The X-beam 18 is provided with an X-axis cover 19 covering the X-beam 18, the probe base 8 is extended to the upper end surface of the X-axis cover 19, and the cover bracket 26 is provided between the X-beam cover 25 and the X-axis cover 19. By providing the X-axis cover 19, it is possible to prevent foreign matter from entering the X-beam 18 and causing an impact, thereby reducing the sliding friction generated on the X-beam 18. Extending the probe base 8 to the upper end surface of the X-axis cover 19 can improve the reliability of the probe base 8. Disposing the cover bracket 26 between the X-beam cover 25 and the X-axis cover 19 can improve the stability between the X-beam cover 25 and the X-axis cover 19 by using the cover bracket 26.

[0058] The detachable connection between the top of the auxiliary bracket 2 and the X-beam 18 can improve the convenience and reliability of the auxiliary bracket 2.

[0059] The present invention also provides Z-axis side seats on both sides of the Z-axis base, and uses the Z-axis side seats to cover the end surfaces on both sides of the sliding base, so as to play a guiding role for the sliding of the Z-axis support and improve the sliding stability of the Z-axis support on the sliding base. In order to reduce the friction between the Z-axis base, the Z-axis side seats and the sliding base, the Z-axis base, the Z-axis side seats and the sliding base are spaced apart, and an air floating seat is provided in the spaced apart space. When the Z-axis support needs to move on the sliding base, the air floating seat blows air onto the sliding base to support the Z-axis base and the Z-axis side seats away from the sliding base. In this way, no friction is generated during the sliding of the Z-axis base and the Z-axis side seats along the sliding base, thereby reducing the friction loss between the Z-axis base, the Z-axis side seats and the sliding base, and improving the sliding stability of the Z-axis base and the Z-axis side seats on the sliding base.

[0060] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. All equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A high-stability three-dimensional coordinate measuring machine, characterized in that: include: A machine platform, wherein a Z-axis assembly is slidably connected to one side of the machine platform, an X-axis assembly is arranged on the Z-axis assembly, and an auxiliary bracket is also arranged at the bottom of the X-axis assembly on the opposite side of the Z-axis assembly; The Z-axis assembly includes a Z-axis support and a Z-axis base disposed between the bottom of the Z-axis support and the sliding base plate, Z-axis side seats are also disposed on both sides of the Z-axis base, and the Z-axis side seats cover the end surfaces of both sides of the sliding base plate, and the Z-axis base and the Z-axis side seats are spaced apart from the sliding base plate, an air floating seat is disposed in the space between the Z-axis base and the Z-axis side seat and the sliding base, and a Z-axis air hole communicating with the air floating seat is disposed on the Z-axis base and the Z-axis side seat; A probe base is arranged on the X-axis assembly.

2. The high stability three-dimensional coordinate measuring machine according to claim 1, characterized in that: A Z-axis sliding mechanism is arranged in the machine platform at the bottom of the Z-axis assembly, and the Z-axis sliding mechanism includes a sliding bottom plate connected to the machine platform, and the sliding bottom plate is a rectangular bottom plate, and two groups of cover support plates are arranged at both ends along the length direction of the rectangular plate, and rectangular plates are extended from both sides and the upper side of the two groups of cover support plates, and two groups of support rods are symmetrically arranged on the upper sides of the two groups of cover support plates, and both ends of the two groups of support rods extend out of the cover support plates, and both ends of the two groups of support rods are also provided with a bottom plate cover covering the cover support plate, and the two ends of the two groups of support rods are pressed tightly against the inner wall of the bottom plate cover.

3. The high stability three-dimensional coordinate measuring machine according to claim 1, characterized in that: The air floating seat located between the side surface of the sliding bottom plate and the Z-axis side seat is a rectangular air floating seat, and the air floating seat located between the Z-axis base and the sliding base is a group of circular air floating seats and a group of rectangular air floating seats.

4. The high stability three-dimensional coordinate measuring machine according to claim 1, characterized in that: A Z-axis driving belt is arranged in the machine on one side of the sliding base plate, and the Z-axis driving belt is spaced apart from the sliding base plate. A support rod support plate is arranged on the cover support plate on the side close to the Z-axis driving belt, and the support rod support plate extends to the upper side of the Z-axis driving belt, and the bottom of the support rod support plate is spaced apart from the Z-axis driving belt.

5. The high stability three-dimensional coordinate measuring machine according to claim 1, characterized in that: The two groups of cover shell support plates are each provided with a cover shell support plate on the side away from the sliding bottom plate. The cover shell support plate is arranged flush with the support rod in the horizontal direction, and an upwardly extending auxiliary support plate is arranged at the end of the cover shell support plate flush with the support rod to support the bottom plate cover shell. A belt driving member is also arranged on one side of the Z-axis driving belt, and the cover shell support plate is located on the upper side of the belt driving member.

6. The high stability three-dimensional coordinate measuring machine according to claim 1, characterized in that: The X-axis assembly includes an X-beam, an X-axis air-floating base is arranged between the probe base and the X-beam, an X-axis base connecting platform is arranged on the X-axis air-floating base, the probe base is detachably connected to the X-axis base connecting platform, the side surface of the X-axis air-floating base located on one side of the X-axis base connecting platform is a rectangular side surface, and the side surface of the X-axis air-floating base located on the side away from the base connecting platform is a T-shaped side surface, a circular base is arranged between the X-axis air-floating base and the X-beam, and the X-axis air-floating base is arranged between the inner wall of the probe base and the X-beam along the outer contour of the probe base.

7. The high stability three-dimensional coordinate measuring machine according to claim 1, characterized in that: An X-beam connecting plate is arranged between one end of the X-beam and the top of the Z-axis support, the X-beam connecting plate is a right-angle connecting plate, the bottom end surface of the X-beam connecting plate is connected to the Z-axis support by bolts, the side end surface of the X-beam connecting plate is connected to the X-beam by bolts, an X-beam driving member is arranged on the top of the Z-axis support and one side of the X-beam connecting plate, an X-beam driving belt is arranged between the movable end of the X-beam driving member and the probe base, and the X-beam driving belt is arranged at an interval between the side surface of the X-beam.

8. The high stability three-dimensional coordinate measuring machine according to claim 1, characterized in that: X-beam covers are also provided at both ends of the X-beam, and the X-beam covers are all convexly provided in the direction away from the X-beam, and a reinforcing plate is provided in the convex space to improve the supporting reliability of the X-beam cover, and a cover bracket is also provided in the X-beam cover and between the X-beam, and the cover bracket is detachably connected to the side of the X-beam, and a cover reinforcing plate is provided on the side of the cover bracket away from the X-beam.

9. The high stability three-dimensional coordinate measuring machine according to claim 1, characterized in that: An X-axis cover covering the X-beam is arranged on the X-beam, the probe base extends to the upper end surface of the X-axis cover, and the cover shell bracket is arranged between the X-beam cover shell and the X-axis cover.

10. The high stability three-dimensional coordinate measuring machine according to claim 1, characterized in that: The auxiliary support top is detachably connected to the X-beam.

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