Three-coordinate image measuring machine

Abstract

The invention discloses a three-coordinate image measuring machine. The three-coordinate image measuring machine comprises a rack; the movable table is movably arranged on the rack; the cross beam is transversely arranged on the movable table in a spanning manner and is fixed with the rack; the sliding frame is arranged on the cross beam in a sliding manner; the image measuring system is arranged on the sliding frame and moves along with the sliding frame; the guide rail unit extends in the direction of the cross beam; the light source part is arranged on the guide rail unit in a sliding manner; the redirection transmission system is connected with the sliding frame and the light source component; when the sliding frame slides along the cross beam, power is transmitted to the redirection transmission system to drive the light source component connected with the redirection transmission system to move synchronously, so that the light source component and the image measuring system are always kept to be overlapped in the optical axis in the sliding process. According to the three-coordinate image measuring machine, the redirection transmission system is arranged to be connected with the sliding frame and the light source component, the follow-up light source component and the image measuring system are kept coaxial up and down, and the problem that an existing follow-up light source is prone to shaking and trembling in the moving process can be solved.

Description

Technical Field

[0001] The invention belongs to the technical field of measuring machines, and in particular relates to an improvement on the structure of a three-coordinate image measuring machine. Background Art

[0002] At present, image measuring machines, especially high-precision image measuring machines, are widely demanded and used in military industry, semiconductors, metrology institutes, aerospace and other fields. The continuous improvement of the measurement accuracy of image systems has also become the direction of future development. As the main light source for contour dimension measurement, the follow-up light source plays a vital role in the measurement accuracy of the image measurement system.

[0003] As a type of three-coordinate measuring equipment, the image measuring machine is based on the structure of a standard three-coordinate measuring machine to load the image measuring system and the image system light source. The image system light source is located below the measuring platform and is coaxial with the image measuring system, also known as a follow-up light source. The traditional connection method of the follow-up light source is to fix it under the moving slide through a U-shaped connection structure, and the image system is fixed above the slide, and the two remain coaxial. In order to avoid interference between the forward and backward movement of the moving platform, a longer U-shaped connection structure is required, resulting in insufficient rigidity of the connection rod of the bottom follow-up light source, which is prone to vibration, affecting the working effect of the bottom follow-up light source and thus affecting the imaging effect.

[0004] The patent publication number is: CN116007499A, and the patent name is: Patent for three-coordinate image measuring machine. It proposes a follow-up light source motion system, which keeps the imaging system and the follow-up light source in synchronous motion through a control system. To a certain extent, the vibration of the follow-up light source connecting rod can be alleviated. However, the follow-up light source connecting frame described in it is still suspended in the air, and the follow-up light source of the image measuring machine with a long Y-axis stroke will still have the problem of insufficient rigidity affecting the imaging quality. In addition, due to the addition of a backlight source motion system and a separate control system, it will inevitably lead to excessive costs and potential failure risks.

[0005] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0006] In view of the above-mentioned technical problems existing in the three-coordinate image measuring machine in the prior art, the present invention proposes a three-coordinate image measuring machine, which is provided with a redirection transmission system. The redirection transmission system uses a steel wire rope for reversing pulling to ensure that the follow-up light source remains coaxial with the image measuring system. The structure is simple and reliable, the cost is low, and the problem that the current follow-up light source is prone to shaking and trembling during movement, which affects the measurement accuracy, can be fundamentally solved.

[0007] In order to achieve the above invention / design purpose, the present invention adopts the following technical solutions: A three-coordinate image measuring machine comprises: a frame; A movable table, movably arranged on the frame; A crossbeam, transversely arranged across the moving platform and fixed to the frame; a slide, slidably disposed on the crossbeam; An image measuring system, which is arranged on the slide and moves with the slide; A guide rail unit is arranged across the movable platform and extends along the direction of the crossbeam; A light source component is slidably disposed on the guide rail unit; A redirection transmission system connected to the slide and the light source component; When the carriage slides along the crossbeam, power is transmitted to the redirection transmission system, driving the light source component connected to the redirection transmission system to move synchronously, so that the light source component and the image measurement system always keep their optical axes coincident during the sliding process.

[0008] Compared with the prior art, the advantages and positive effects of the present invention are: The three-coordinate image measuring machine structure proposed in the present invention improves the original measuring machine, removes the U-shaped connection structure, and sets a redirection transmission system for connecting the slide and the light source component between the two. At the same time, a guide rail unit is fixed on the base. When measuring movement is performed, the slide can be moved to transmit the force to the redirection transmission system to drive the light source component connected to the top thereof to move synchronously along the guide rail unit, thereby ensuring the synchronous movement of the image measuring system and the light source component, and ensuring that the light source component can always be coaxial with the optical axis of the image measuring system.

[0009] In addition, through the reversing and connection of the redirection transmission system structure, the guide rail unit can be fixed on the base to guide the movement of the light source component. The light source component moves along the guide rail unit, ensuring the stability and linearity of the light source component during the image measurement process, and preventing the light source component from vibrating, providing a stable light source for the image measurement system, thereby improving the measurement accuracy of the image measurement system. The three-coordinate image measuring machine of the present invention only needs to provide a redirection transmission system and a guide rail unit to ensure that the light source component moves stably along with the image measuring system, and does not need to provide a separate control system. The structure is simple and the cost is low.

[0010] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0012] Figure 1 It is a three-dimensional structural diagram of an embodiment of the three-coordinate image measuring machine proposed by the present invention; Figure 2 It is a structural schematic diagram of the connection between the steel wire rope and the slide frame of the three-coordinate image measuring machine proposed by the present invention; Figure 3 It is a layout structure diagram of the first redirection pulley unit and the second redirection pulley unit of the three-coordinate image measuring machine proposed by the present invention; Figure 4 It is a layout structure diagram of the second redirection pulley unit and the third redirection pulley unit of the three-coordinate image measuring machine proposed by the present invention; Figure 5 It is a layout structure diagram of the guide rail unit and the fourth reversing wheel of the three-coordinate image measuring machine proposed by the present invention; Figure 6 It is a three-dimensional structural diagram of the first redirecting pulley unit of the three-coordinate image measuring machine proposed by the present invention; Figure 7 It is a schematic diagram of the matching structure of the first redirecting pulley and the first unit seat of the first redirecting pulley unit of the three-coordinate image measuring machine proposed by the present invention; Figure 8 It is a three-dimensional structural diagram of the second redirecting pulley unit of the three-coordinate image measuring machine proposed by the present invention; Fig. 9 It is a full cross-sectional view of the second redirecting pulley unit of the three-coordinate image measuring machine proposed by the present invention; Fig.10 The schematic diagram of the slide rail unit structure of the three-coordinate image measuring machine proposed by the present invention is Figure 1 ; Fig.11 The structure of the slide rail unit of the three-coordinate image measuring machine proposed by the present invention is shown in FIG. Figure 2 ; Fig.12 It is a structural diagram of the fifth unit seat and the adjusting member of the three-coordinate image measuring machine proposed by the present invention; Fig.13 The structure diagram of the wire fixing seat of one embodiment of the three-coordinate image measuring machine proposed by the present invention is Figure 1 ; Fig.14The structure diagram of the wire fixing seat of one embodiment of the three-coordinate image measuring machine proposed by the present invention is Figure 2 ; Fig.15 The structure of the wire fixing seat of another embodiment of the three-coordinate image measuring machine proposed by the present invention is shown in FIG. Figure 1 ; Fig.16 The structure of the wire fixing seat of another embodiment of the three-coordinate image measuring machine proposed by the present invention is shown in FIG. Figure 2 .

[0013] In the figure, 100, frame; 110, base; 120, first column; 130, second column; 140, crossbeam; 200, slide; 300, image measuring system; 400, moving table; 500, light source component; 600, guide rail unit; 610, linear guide; 620, guide rail seat; 630, guide rail support bar; 640, wire rope fixing seat; 641, seat body; 642, recessed portion; 643, pressing member; 644, first a first connection portion; 645, a second connection portion; 646, a rope passage; 647, a cover; 650, a slider unit; 651, a slider mounting seat; 652, a slider; 710, a wire rope; 711, a moving stroke section; 720, a first redirecting pulley unit; 721, a first unit seat; 722, a first redirecting pulley; 723, a second redirecting pulley; 724, a first mounting shaft; 725, a first rotating bearing; 726, a first retaining spring; 727 , first limit ring; 730, second redirection pulley unit; 731, second unit seat; 7311, raised portion; 732, third redirection pulley; 733, fourth redirection pulley; 734, second mounting shaft; 735, second rotating bearing; 736, third retaining spring; 737, third limit ring; 738, fourth limit ring; 739, locking nut; 740, third redirection pulley unit; 741, third unit seat; 742, fifth redirection pulley Redirect pulley; 743, sixth redirect pulley; 750, fourth redirect pulley unit; 751, fourth unit seat; 752, fourth reversing wheel; 760, fifth redirecting pulley unit; 761, fifth unit seat; 762, fifth reversing wheel; 810, first guide pulley unit; 820, second guide pulley unit; 830, third guide pulley unit; 910, fixing seat; 920, adjusting member; 930, locking screw; 940, mounting plate. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are 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 understood as a limitation on the present invention.

[0016] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In the description of the implementation method, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0017] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0018] In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0019] In some embodiments of the present application, a three-coordinate image measuring machine is provided, including: a frame 100, a slide 200, an image measuring system 300, a movable table 400, a light source component 500, a guide rail unit 600 and a redirection transmission system.

[0020] The frame 100 is used to form the foundation of the entire three-coordinate image measuring machine, and realizes the supporting and fixing function of the entire machine.

[0021] In some embodiments of the present application, the rack 100 includes a base 110 , a first column 120 , a second column 130 and a beam 140 .

[0022] The movable platform 400 is disposed on the base 110 , and the movable platform 400 can move along the front-rear direction of the base 110 .

[0023] The second columns 130 are symmetrically arranged on both sides of the base 110 with respect to the first columns 120 .

[0024] The crossbeam 140 is laterally arranged across the movable platform 400 of the base 110 , and its two ends are respectively fixedly connected to the first column 120 and the second column 130 , so that the crossbeam 140 is supported and fixed by the first column 120 and the second column 130 .

[0025] In some embodiments of the present application, the three-coordinate image measuring machine further includes a slide 200 , which is sleeved on the outer circumference of the beam 140 and slidably disposed on the beam 140 and can slide along the length direction of the beam 140 .

[0026] The image measurement system 300 is disposed on the carriage 200 and moves along with the carriage 200 . The image measurement system 300 is used for imaging measurement.

[0027] The slide 200 and the image measuring system 300 are existing structures and will not be described in detail herein. After the image measuring system 300 is assembled on the slide 200 , it can slide along the crossbeam 140 together with the slide 200 .

[0028] The image measuring system 300 needs to cooperate with the light source component 500 when in use. When the image measuring system 300 moves along the beam 140, the light source component 500 should also keep moving synchronously with it, thereby ensuring that the optical axis of the light source component 500 is coaxial with the optical axis of the image measuring system 300, thereby ensuring the molding quality and measurement accuracy of the image measuring system 300.

[0029] In some embodiments of the present application, a guide rail unit 600 is disposed on the base 110 and is laterally arranged above the movable platform 400 . Meanwhile, the guide rail unit 600 is arranged to extend along the direction of the crossbeam 140 .

[0030] When the light source component 500 is moved and arranged on the guide rail unit 600, it can be guided by the guide rail unit 600. Since the guide rail unit 600 is fixed on the base 110 instead of being suspended, it is ensured that the light source component 500 will not vibrate when moving above it, and the stability of the light source component 500 during the movement process is ensured, and a stable light source can be provided for the image measurement system 300, thereby improving the measurement accuracy of the image measurement system 300. At the same time, since the guide rail unit 600 is arranged parallel to the crossbeam 140 , the straight line of movement of the light source component 500 is also ensured, and the light source component 500 can always move parallel to the image measurement system 300 , and no deviation will occur during the movement of the light source component 500 .

[0031] In order to achieve synchronous movement of the light source component 500 and the image measuring system 300 , the three-coordinate image measuring machine further includes: a redirection transmission system connected to the slide 200 and the light source component 500 .

[0032] When the slide 200 slides along the crossbeam 140 , power is transmitted to the redirection transmission system, driving the light source component 500 connected to the redirection transmission system to move synchronously, so that the light source component 500 and the image measurement system 300 always keep their optical axes coincident during the sliding process.

[0033] The slide 200 is connected to the light source component 500 through a redirection transmission system. When the slide 200 moves, power can be transmitted to the light source component 500 through the redirection transmission system, thereby driving the light source component 500 to achieve synchronous movement.

[0034] During assembly, the light source component 500 may be fixed in the redirection transmission system according to the position of the image measuring system 300 , so that in the initial state, the light source component 500 is coaxial with the optical axis of the image measuring system 300 .

[0035] In this way, when the slide 200 drives the image measuring system 300 to move, it can be ensured that the light source component 500 always remains coaxial with the optical axis of the image measuring system 300 .

[0036] The structure of the three-coordinate image measuring machine proposed in this embodiment improves the original measuring machine by removing the U-shaped connection structure, and setting a redirection transmission system for connecting the slide 200 and the light source component 500. At the same time, a guide rail unit 600 is fixed on the base 110. When measuring, the slide 200 can move and transmit the force to the redirection transmission system to drive the light source component 500 connected to the top thereof to move synchronously along the guide rail unit 600, thereby ensuring the synchronous movement of the image measuring system 300 and the light source component 500, and ensuring that the light source component 500 can always be coaxial with the optical axis of the image measuring system 300.

[0037] In addition, through the reversing and connection of the redirection transmission system structure, the guide rail unit 600 can be fixed on the base 110 to guide the movement of the light source component 500. The light source component 500 moves along the guide rail unit 600, ensuring the stability and linearity of the light source component 500 during the image measurement process, and preventing the light source component 500 from vibrating. This provides a stable light source for the image measurement system 300, thereby improving the measurement accuracy of the image measurement system 300. In the three-coordinate image measuring machine of the present embodiment, only a redirection transmission system and a guide rail unit 600 are provided to ensure that the light source component 500 moves stably along with the image measuring system 300, and there is no need to provide a separate control system, so the structure is simple and the cost is low.

[0038] In some embodiments of the present application, the redirection transmission system includes: Redirection pulley assembly and wire rope 710.

[0039] One end of the steel wire rope 710 is fixed to a side of the slide 200 close to the first column 120 , and the other end is wound around the redirecting pulley assembly in sequence and then connected and fixed to a side of the slide 200 close to the second column 130 .

[0040] When the wire rope 710 passes through the redirecting pulley assembly, it will be redirected by the redirecting pulley assembly.

[0041] The path of the wire rope 710 is to extend from the side of the slide 200 close to the first column 120 to the first column 120, extend from the first column 120 to the guide rail unit 600, then turn back from the guide rail unit 600 to the first column 120, extend along the first column 120 to the beam 140, extend along the beam 140 to the second column 130, and extend from the second column 130 to the side of the slide 200 close to the second column 130.

[0042] The steel wire rope 710 at least includes a moving segment 711 extending along the guide rail unit 600 . The moving segment 711 moves in the same direction as the slide 200 when the slide 200 moves. The light source component 500 is fixedly connected to the moving segment 711 .

[0043] Both ends of the wire rope 710 are connected to the two sides of the slide 200 respectively. When the slide 200 moves, the force can be transmitted to the wire rope 710 wound around the redirecting pulley assembly, so that the wire rope 710 moves.

[0044] The moving directions of the steel wire rope 710 segments at different positions are different from the moving direction of the slide 200, while the moving direction of the moving stroke segment 711 in the steel wire rope 710 is the same as the moving direction of the slide 200. Therefore, fixing the light source component 500 on the moving stroke segment 711 can ensure that the light source component 500 can move synchronously with the image measurement system 300.

[0045] In some embodiments of the present application, the redirecting pulley assembly includes: The first redirecting pulley unit 720 is fixed to one end of the first column 120 close to the slide 200, and is used to redirect the wire rope 710 from the horizontal direction along the beam 140 to the vertical direction extending along the column and vice versa.

[0046] In some embodiments of the present application, the first redirecting pulley unit 720 includes a first redirecting pulley 722 and a second redirecting pulley 723 assembled to one end of the first column 120 close to the slide 200 .

[0047] In some embodiments of the present application, the redirecting pulley assembly includes: a second redirecting pulley unit 730, fixed to the end of the first column 120 away from the slide 200, used to redirect the wire rope 710 from the vertical direction extending along the column to the horizontal direction of the vertical beam 140 and from the horizontal direction of the vertical beam 140 to the vertical direction extending along the column.

[0048] In some embodiments of the present application, the second redirecting pulley unit 730 includes a third redirecting pulley 732 and a fourth redirecting pulley 733 assembled to an end of the first column 120 away from the slide 200 .

[0049] The third redirecting pulley unit 740 is fixed on the base 110 and is used to redirect the steel wire rope 710 from the horizontal direction of the vertical beam 140 to the horizontal direction of the parallel beam 140 and from the horizontal direction of the parallel beam 140 to the horizontal direction of the vertical beam 140.

[0050] The third redirecting pulley unit 740 includes a fifth redirecting pulley 742 and a sixth redirecting pulley 743 assembled to the base 110; The fourth redirecting pulley unit 750 is disposed at both ends of the guide rail unit 600 opposite to the third redirecting pulley unit 740, and is used to redirect the steel wire rope 710 parallel to the beam 140 and extending along the first direction to extend parallel to the beam 140 along the second direction.

[0051] The fourth redirecting pulley unit 750 includes a fourth redirecting wheel 752, which is mounted on the base 110 and arranged at two ends of the guide unit opposite to the third redirecting pulley unit 740; The fifth redirecting pulley unit is fixed to the second column 130 and is used to redirect the steel wire rope 710 parallel to the cross beam 140 and extending along the first direction to be parallel to the cross beam 140 and extending along the second direction.

[0052] The fifth redirecting pulley unit 760 includes a fifth redirecting wheel 762 , which is assembled to an end of the second column 130 close to the sliding frame 200 .

[0053] The first direction is a direction gradually away from the first column 120 , and the second direction is a direction gradually away from the second column 130 .

[0054] When the steel wire rope 710 is wound: one end is connected to the side of the slide 200 close to the first column 120. When it is fixed, it can be connected to the slide 200 through the steel wire rope 710 connector, and the steel wire rope 710 connector is an existing structure.

[0055] The other end of the wire rope 710 is wound around the first redirecting pulley 722, and the wire rope 710 is redirected from the horizontal direction along the beam 140 to the vertical direction along the column through the first redirecting pulley 722, and then wound to the third redirecting pulley 732 to redirect the wire rope 710 from the vertical direction extending along the column to the horizontal direction perpendicular to the beam 140, and then wound to the fifth redirecting pulley 742 to redirect the wire rope 710 from the horizontal direction perpendicular to the beam 140 to the horizontal direction parallel to the beam 140, and extends along one side of the guide rail unit 600 to the fourth reversing wheel 752 to change the wire rope 710 parallel to the beam 140 and extending along the first direction to be parallel to the beam 140 and extending along the second direction, and then wound around the sixth reversing wheel after reversing. The wire rope 710 is redirected to the fourth redirecting pulley 733 from the horizontal direction parallel to the cross beam 140 to the horizontal direction perpendicular to the cross beam 140, and then wound to the second redirecting pulley 723, and the wire rope 710 is redirected from the vertical direction extending along the column to the horizontal direction along the cross beam 140, and extended to the position of the second column 130, and wound to the fifth reversing wheel 762, and the wire rope 710 parallel to the cross beam 140 and extending along the first direction is redirected to be parallel to the cross beam 140 and extending along the second direction and connected to the side of the slide 200 close to the second column 130, thereby completing the closed winding of the wire rope 710.

[0056] Since the overall length of the wire rope 710 remains unchanged and its two ends are fixed to the slide 200, if the light source component 500 is fixed to the moving stroke section 711 and kept coaxial with the optical axis of the image measuring system 300 during the initial installation, when the image measuring system 300 subsequently performs measurement and drives the light source component 500 to move synchronously, the light source component 500 can also always remain coaxial with the optical axis of the image measuring system 300.

[0057] In some embodiments of the present application, the first redirecting pulley unit 720 includes: a first unit seat 721 and a first redirecting pulley 722 and a second redirecting pulley 723 diagonally mounted on the first unit seat 721 .

[0058] The method of integrating the first redirecting pulley 722 and the second redirecting pulley 723 onto the first unit seat 721 can ensure the installation position and accuracy of the first redirecting pulley 722 and the second redirecting pulley 723 before they are assembled with the first column 120, and there is no need to separately calibrate the installation position of the first redirecting pulley 722 and the second redirecting pulley 723 and the first column 120 during installation.

[0059] In some embodiments of the present application, a first mounting shaft 724 is provided on the first unit seat 721 , the first redirecting pulley 722 is assembled to the first mounting shaft 724 , and a first rotating bearing 725 is provided between the first mounting shaft 724 and the first redirecting pulley 722 .

[0060] One end of the first rotating bearing 725 is limited by the boss on the first mounting shaft 724 and the first redirecting pulley 722 , and the other end is limited by the first retaining spring 726 clamped in the retaining groove of the first redirecting pulley 722 .

[0061] In order to limit the position of the first redirecting pulley 722 , a first limit ring 727 is provided between the first unit seat 721 and the first rotating bearing 725 , and abuts against the end surface of the first rotating bearing 725 and the first unit seat 721 respectively.

[0062] The second redirecting pulley 723 has the same connection structure as the first unit seat 721, which will not be described in detail here.

[0063] In some embodiments of the present application, the second redirecting pulley unit 730 includes a second unit seat 731 and a third redirecting pulley 732 and a fourth redirecting pulley 733 symmetrically mounted on the second unit seat 731 .

[0064] The second unit seat 731 includes a seat body and a protrusion 7311 extending from the seat body.

[0065] The third redirecting pulley 732 and the fourth redirecting pulley 733 are symmetrically arranged on both sides of the protruding portion 7311 .

[0066] A second installation shaft 734 is disposed on the protruding portion 7311 , and the second installation shaft 734 passes through the third redirecting pulley 732 and the fourth redirecting pulley 733 .

[0067] A second rotation bearing 735 is disposed between the third redirecting pulley 732 and the second mounting shaft 734 , and a second rotation bearing 735 is disposed between the fourth redirecting pulley 733 and the second mounting shaft 734 .

[0068] One end of the second rotating bearing 735 arranged in the third redirecting pulley 732 is limited by the end surface of the second installation shaft 734 and the third redirecting pulley 732 , and the other end is limited by the third retaining spring 736 .

[0069] A third limit ring 737 is provided between the second rotation bearing 735 and the protruding portion 7311 and abuts against the second rotation bearing 735 and the protruding portion 7311 respectively.

[0070] One end of the second rotating bearing 735 arranged in the fourth redirecting pulley 733 is limited by the fourth limiting ring 738 arranged on the protrusion 7311 and the end face of the second rotating bearing 735, and the other end is limited by the fourth retaining spring (not shown in the figure) embedded in the fourth redirecting pulley 733. The locking nut 739 is screwed to the second mounting shaft 734 close to the fourth retaining spring segment, and is supported on the second rotating bearing 735 in the fourth redirecting pulley 733.

[0071] The third redirecting pulley unit 740 includes a third unit seat 741 and a fifth redirecting pulley 742 and a sixth redirecting pulley 743 diagonally mounted on the third unit seat 741 .

[0072] The installation structures of the fifth redirecting pulley 742 and the sixth redirecting pulley 743 are the same as those of the first redirecting pulley 722 and the second redirecting pulley 723, and are not described in detail herein.

[0073] The fourth redirecting pulley unit 750 includes a fourth unit seat 751 and a fourth redirecting wheel 752 assembled on the fourth unit seat 751 .

[0074] The installation method of the fourth redirecting wheel 752 and the fourth unit seat 751 is the same as the installation method of the first redirecting pulley 722 .

[0075] The fifth redirecting pulley unit 760 includes a fifth unit seat 761 and a fifth redirecting wheel 762 assembled onto the fifth unit seat 761 .

[0076] In some embodiments of the present application, the redirecting pulley assembly includes: The first guide pulley unit 810 is arranged at the fifth diverting wheel 762 , and is used to guide the wire rope 710 before it is introduced into the fifth diverting wheel 762 and led out from the fifth diverting wheel 762 .

[0077] The first guide pulley unit 810 includes two first guide pulleys arranged vertically on both sides of the fifth diverting wheel 762 .

[0078] The second guide pulley unit 820 is arranged between the third redirecting pulley unit 740 and the fourth redirecting pulley unit 750, and is used to guide the wire rope 710 introduced from the third redirecting pulley unit 740 to the fourth redirecting pulley unit 750 and led out from the fourth redirecting pulley unit 750 to the third redirecting pulley unit 740.

[0079] The second guide pulley unit 820 includes at least one second guide pulley group, and the structure of each guide pulley group is the same as that of the third redirecting pulley unit 740 .

[0080] The third guide pulley unit 830 is disposed between the carriage 200 and the first redirecting pulley 722 to guide the wire rope 710 introduced from the carriage 200 to the first redirecting pulley 722 .

[0081] The third guide pulley unit 830 includes a third guide pulley, which is pressed above the wire rope 710 for guiding.

[0082] In some embodiments of the present application, the three-coordinate image measuring machine further includes: The adjustment mechanism is used to adjust the position of the fifth unit seat 761 to adjust the tightness of the steel wire rope 710.

[0083] The regulatory agencies include: A fixing seat 910, fixedly assembled to a mounting plate 940 above the second column 130, with a through hole provided above the fixing seat 910; The adjusting member 920 passes through the through hole of the fixing seat 910 and is screwed into the fifth unit seat 761 .

[0084] A threaded hole is provided in the fifth unit seat 761 , and the adjusting member 920 is an adjusting screw, which passes through a through hole on the fixing seat 910 and is screwed into the threaded hole of the fifth unit seat 761 .

[0085] The fifth unit seat 761 is provided with an adjustment slot opened in the extension direction of the wire rope 710; The locking screw 930 passes through the adjusting slot and is locked on the mounting plate 940 .

[0086] During adjustment, the locking screw 930 is loosened, and the adjusting member 920 is rotated to drive the fifth unit seat 761 to move along the locking screw 930 through the adjusting slot to adjust the tightness of the steel wire rope 710 wound around the fifth reversing wheel 762; After being adjusted into place, the locking screw 930 is tightened to fix the fifth unit seat 761 to the mounting plate 940 .

[0087] If the wire rope 710 is loose and needs to be tightened, first loosen the locking screw 930 in the adjustment hole on the fifth unit seat 761, then turn the adjusting screw to move the fifth unit seat 761 toward the fixed seat 910, and when the wire rope is appropriately tight, tighten the locking screw 930 in the adjustment hole of the fifth unit seat 761.

[0088] If the wire rope 710 is too tight and needs to be loosened, first loosen the locking screw 930 in the adjustment hole on the fifth unit seat 761, then turn the adjustment screw to move the fifth unit seat 761 away from the fixed seat 910, and tighten the locking screw 930 after the wire rope 710 is appropriately tight.

[0089] In some embodiments of the present application, the guide rail unit 600 includes: a linear guide rail 610; Two guide rail seats 620 are provided and symmetrically arranged at both ends of the linear guide rail 610 . The two guide rail seats 620 are symmetrically fixed on the bases 110 on both sides of the movable platform 400 .

[0090] The guide rail support bar 630 is connected between the end of the linear guide rail 610 and the guide rail seat 620 .

[0091] The guide rail support bar 630 is fixed on the two guide rail seats 620 and is used to vertically support the linear guide rail 610 . The linear guide rail 610 is installed above the guide rail support bar 630 .

[0092] The wire rope fixing seat 640 is used to pass through and fix the wire rope 710.

[0093] The slider unit 650 is slidably disposed on the linear guide rail 610 and is connected and fixed to the wire rope fixing seat 640; The light source component 500 is fixedly connected to the wire rope fixing seat 640 .

[0094] The slider unit 650 includes a slider mounting seat 651 and a slider 652 , which are fixedly connected to the wire rope fixing seat 640 to form a whole with the wire rope fixing seat 640 .

[0095] The light source component 500 is connected and fixed to the wire rope fixing seat 640 via a light source mounting plate (not shown in the figure) to achieve an integral connection with the wire rope fixing seat 640 .

[0096] Since the wire rope 710 passes through the wire rope fixing seat 640 and is fixedly connected thereto, the light source component 500 is fixed on the wire rope fixing seat 640, and the slider 652 is fixed on the wire rope fixing seat 640, when the wire rope 710 moves, it can drive the wire rope fixing seat 640 and the light source component 500 and the slider 652 above it to move synchronously.

[0097] In some embodiments of the present application, the wire rope fixing seat 640 includes: The seat body 641 has a first passage formed therein; A recessed portion 642 is formed at the end of the seat body 641 , and a second channel is formed in the recessed portion 642 , which is connected to the first channel to form a routing channel for the wire rope 710 ; The pressing member 643 is arranged at the recessed portion 642 to press and fix the steel wire rope 710 passing through the second channel.

[0098] The pressing member 643 is a pressing plate, which is pressed at the recessed portion 642 and is fixed at the recessed portion 642 by screws to press and fix the steel wire rope 710 .

[0099] The wire rope 710 may pass through the first passage of the seat body 641 and then enter the second passage at the recessed portion 642 .

[0100] In some embodiments of the present application, the wire rope fixing seat 640 includes: A first connecting portion 644 and a second connecting portion 645 disposed perpendicular to the first connecting portion 644 , wherein a rope passage 646 is formed on the first connecting portion 644 ; The cover body 647 is locked and fixed on the first connecting portion 644 , and is pressed onto the steel wire rope 710 in the rope passage 646 to press and fix the steel wire rope 710 .

[0101] The second connection portion 645 is used to be fixed to the slider unit 650 and the light source component 500 by screws.

[0102] The steel wire rope fixing seat 640 is arranged in a matching manner with the cover body 647 and the first connecting portion 644, so that the steel wire rope 710 can be easily threaded and routed.

[0103] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to replace some of the technical features therein by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present invention.

Claims

1. A three-coordinate image measuring machine, characterized in that: Includes: rack; A movable table, movably arranged on the frame; A crossbeam, transversely arranged across the moving platform and fixed to the frame; a slide frame slidably disposed on the crossbeam; An image measuring system, which is arranged on the slide and moves with the slide; A guide rail unit is arranged across the movable platform and extends along the direction of the crossbeam; A light source component is slidably disposed on the guide rail unit; A redirection transmission system connected to the slide and the light source component; When the carriage slides along the crossbeam, power is transmitted to the redirection transmission system, driving the light source component connected to the redirection transmission system to move synchronously, so that the light source component and the image measurement system always keep their optical axes coincident during the sliding process.

2. The three-coordinate image measuring machine according to claim 1, characterized in that: The frame comprises: a base, on which the moving platform is arranged; And the first pillar, The second upright column is symmetrically arranged on both sides of the base with respect to the first upright column, and the two upright columns are respectively fixedly connected to the two ends of the cross beam.

3. The three-coordinate image measuring machine according to claim 2, characterized in that: The redirection transmission system comprises: redirection pulley assembly; and a steel wire rope, one end of which is fixed to a side of the slide close to the first column, and the other end of which is successively wound through the redirection pulley assembly and then connected and fixed to a side of the slide close to the second column; Wherein, the steel wire rope at least includes a moving travel section; The moving stroke section has the same moving direction as the sliding carriage when the sliding carriage moves, and the light source component is fixedly connected to the moving stroke section.

4. The three-coordinate image measuring machine according to claim 3, characterized in that: The redirecting pulley assembly comprises: A first redirecting pulley unit is fixed to one end of the first column close to the slide, and is used to redirect the steel wire rope from the horizontal direction along the crossbeam to the vertical direction extending along the column, and vice versa. A second redirecting pulley unit is fixed to an end of the first column away from the slide, and is used to redirect the steel wire rope from a vertical direction extending along the column to a horizontal direction perpendicular to the cross beam, and vice versa. A third redirecting pulley unit, fixed on the base, is used to redirect the steel wire rope from the horizontal direction of the vertical beam to the horizontal direction of the parallel beam and vice versa; A fourth redirecting pulley unit, which is arranged at two ends of the guide rail unit opposite to the third redirecting pulley unit, and is used to redirect the steel wire rope parallel to the beam and extending along the first direction to extend parallel to the beam along the second direction; a fifth redirecting pulley unit, fixed to the second column, for redirecting the steel wire rope parallel to the beam and extending along the first direction to extend parallel to the beam along the second direction; The first direction is a direction gradually away from the first column, and the second direction is a direction gradually away from the second column.

5. The three-coordinate image measuring machine according to claim 4, characterized in that: The first redirecting pulley unit includes a first redirecting pulley and a second redirecting pulley mounted on the first column near one end of the slide; The second redirecting pulley unit includes a third redirecting pulley and a fourth redirecting pulley mounted on the first column at an end away from the slide; The third redirecting pulley unit includes a fifth redirecting pulley and a sixth redirecting pulley mounted on the base; The fourth redirecting pulley unit includes a fourth redirecting wheel, which is mounted on the base and arranged at two ends of the guide rail unit opposite to the third redirecting pulley unit; The fifth redirecting pulley unit includes a fifth redirecting wheel, which is assembled to the second column close to one end of the slide; When the wire rope is wound: one end is connected to the side of the slide close to the first column, and the other end is wound around the first redirecting pulley, the third redirecting pulley, and the fifth redirecting pulley, and then changes direction through the fourth reversing wheel. After reversing, it passes through the sixth redirecting pulley, the fourth redirecting pulley, the second redirecting pulley and the fifth reversing wheel in sequence, and is led out from the fifth reversing wheel and connected to the side of the slide close to the second column.

6. The three-coordinate image measuring machine according to claim 4, characterized in that: The first redirecting pulley unit comprises: a first unit seat and a first redirecting pulley and a second redirecting pulley diagonally mounted on the first unit seat; The second redirecting pulley unit includes a second unit seat and a third redirecting pulley and a fourth redirecting pulley symmetrically mounted on the second unit seat; The third redirecting pulley unit includes a third unit seat and a fifth redirecting pulley and a sixth redirecting pulley diagonally mounted on the third unit seat; The fourth redirecting pulley unit includes a fourth unit seat and a fourth redirecting wheel assembled on the fourth unit seat; The fifth redirecting pulley unit includes a fifth unit seat and a fifth redirecting wheel assembled on the fifth unit seat.

7. The three-coordinate image measuring machine according to claim 6, characterized in that: Included are: A first guide pulley unit is arranged at the fifth reversing wheel and is used to guide the wire rope introduced into and led out of the fifth reversing wheel; A second guide pulley unit is arranged between the third redirecting pulley unit and the fourth redirecting pulley unit, and is used to guide the wire rope introduced from the third redirecting pulley unit to the fourth redirecting pulley unit and led from the fourth redirecting pulley unit to the third redirecting pulley unit; The third guide pulley unit is arranged between the carriage and the first redirecting pulley to guide the wire rope introduced from the carriage to the first redirecting pulley.

8. The three-coordinate image measuring machine according to claim 6, characterized in that: Also included are: An adjustment mechanism, used for adjusting the position of the fifth unit seat; Included are: A fixing seat, fixedly assembled to the mounting plate above the second column, with a through hole provided on the top of the fixing seat; An adjusting member, passing through the through hole and screwed into the fifth unit seat; The fifth unit seat is provided with an adjustment slot opened in the extension direction of the wire rope; A locking screw passes through the adjusting slot and is locked on the mounting plate; During adjustment, the locking screw is loosened, and the adjusting member is rotated to drive the fifth unit seat to move along the locking screw through the adjusting slot to adjust the tightness of the wire rope wound around the fifth reversing wheel; After adjustment is in place, tighten the locking screw to fix the fifth unit seat to the mounting plate.

9. The three-coordinate image measuring machine according to claim 6, characterized in that: The guide rail unit comprises: a linear guide rail; Two guide rail seats are provided and symmetrically arranged at both ends of the linear guide rail; A guide rail support bar connected between the end of the linear guide rail and the guide rail seat; A wire rope fixing seat, used for passing and fixing the wire rope; A slider unit is slidably arranged on the linear guide rail and is connected and fixed to the wire rope fixing seat; The light source component is fixedly connected to the steel wire rope fixing seat.

10. The three-coordinate image measuring machine according to claim 9, characterized in that: The wire rope fixing seat comprises: A seat body having a first passage formed therein; A recessed portion is formed at the end of the seat body, and a second channel is formed in the recessed portion, which is connected with the first channel to form a wire rope routing channel; A pressing member is arranged at the recessed portion to press and fix the steel wire rope passing through the second channel.

Images