Image measuring instrument positioning equipment

Abstract

The present application discloses an image measuring instrument positioning device, which includes: a fixed bottom plate, a light source adjustment component, a lens cleaning structure, and a workpiece moving platform. In order to solve the problem that when an ordinary image measuring instrument measures a workpiece with large surface undulations, the distance between the measuring instrument and the workpiece changes when measuring different positions due to the undulations on the workpiece surface, causing measurement errors, the present application designs a distance control component. Through the setting of the distance control component, the distance between the lens and the workpiece surface can be automatically controlled when measuring different positions of the workpiece, so that the height of the image measuring instrument is automatically adjusted when the undulations on the workpiece surface change, thereby realizing the function of controlling the distance. Through the setting of the light source adjustment component, the light intensity can be automatically adjusted when measuring at different distances.

Description

Technical Field

[0001] The present application relates to the field of image measurement technology, in particular to an image measuring instrument positioning device. Background Art

[0002] Image measurement is a measurement technology that combines graphics, machine vision, and information processing. It is increasingly widely used in the field of dimensional measurement due to its advantages such as real-time, non-contact, accurate and reliable. The light source will shine on the object to be measured, causing the surface of the object to reflect the light. The camera captures the image of the surface of the object and transmits the image to the computer. After the computer receives the image, it will perform a series of image processing operations, such as denoising, enhancement, segmentation, etc., to extract the contours and features of the object.

[0003] The existing patent document "CN221223686U An image measuring instrument for workpiece mobile positioning" discloses an image measuring instrument. Although the image measuring instrument in the above technical solution can be mobile positioned, when measuring a workpiece with large surface undulations, the distance between the measuring instrument and the workpiece changes when measuring different parts due to the undulations on the workpiece surface, which easily leads to measurement errors. At the same time, when performing local measurement and overall measurement, it is necessary to adjust the distance between the lens and the workpiece. Due to different measurement distances, the light intensity image measurement is affected. When the distance is close, the light intensity is relatively high due to the short propagation distance. When the distance is far, the light intensity is weakened due to the long light propagation distance, and the image measurement effect is poor.

[0004] That is, the prior art has the following technical problem: when ordinary image measuring instruments measure workpieces with large surface irregularities, measurement errors are easily caused by changes in spacing. Therefore, an image measuring instrument positioning device is proposed to address the above problem. Summary of the invention

[0005] In this embodiment, an image measuring instrument positioning device is provided to solve the problem that when a common image measuring instrument in the prior art measures a workpiece with large surface irregularities, measurement errors may occur due to changes in spacing.

[0006] According to one aspect of the present application, there is provided an image measuring instrument positioning device, the image measuring instrument positioning device comprising:

[0007] A fixed bottom plate, a gantry unit is fixedly connected to the upper surface of the fixed bottom plate, a spacing control component is fixedly connected to the front end of the gantry unit, an image measuring instrument is fixedly connected to one side of the spacing control component, the gantry unit is used to move and adjust the position of the image measuring instrument, and the spacing control component is used to automatically adjust the spacing between the image measuring instrument and the workpiece to be measured;

[0008] A light source adjustment component, which is fixedly arranged at the bottom end of the spacing control component and is used to adjust the light intensity during measurement;

[0009] A lens cleaning structure, wherein the lens cleaning structure is fixedly arranged on the outer side wall of the image measuring instrument, and the lens cleaning structure is used to automatically clean the lens;

[0010] The workpiece moving platform is used to fix the workpiece to be measured and adjust the position of the workpiece to be measured.

[0011] Furthermore, the gantry unit includes a support frame, a cross bar, a threaded rod A, a servo motor A, a movable seat, a fixed plate frame, a lifting slider, a servo motor B and a threaded rod B. The support frame is fixedly arranged on the upper surface of the fixed base plate, the side wall of the support frame is fixedly connected with a cross bar, the movable seat is slidably connected on the cross bar, the threaded rod A is rotatably connected between the two support frames, the threaded rod A passes through the movable seat and is threadedly matched with the movable seat, the side wall of the support frame is fixedly connected with a servo motor A, and the end of the output shaft of the servo motor A is fixedly connected to one end of the threaded rod A.

[0012] Furthermore, the fixed plate frame is fixedly arranged on the side wall of the movable seat, a guide groove is opened on the fixed plate frame, a lifting slider is slidably connected to the guide groove of the fixed plate frame, a threaded rod B is rotatably connected between the upper and lower ends of the fixed plate frame, the threaded rod B penetrates the lifting slider and is threadedly matched with the lifting slider, a servo motor B is fixedly connected to the upper surface of the fixed plate frame, the output shaft end of the servo motor B is fixedly connected to the upper end of the threaded rod B, and a connecting arm is fixedly connected to the side wall of the lifting slider.

[0013] Furthermore, the spacing control assembly includes a fixed plate, a movable plate, a guide rod, a spring, a fixed sleeve rod, an adjusting sleeve rod, a connecting leg and a contact wheel. The fixed plate is fixedly arranged at the front end of the connecting arm, and guide rods are fixedly connected to both sides of the upper surface of the movable plate. The guide rods penetrate the fixed plate and slide with the fixed plate. One end of the spring is fixedly connected to both sides of the upper surface of the movable plate, and the other end of the spring is fixedly connected to the bottom surface of the fixed plate. An image measuring instrument is fixedly connected to the side wall of the movable plate, a fixed sleeve rod is fixedly connected to the bottom surface of the movable plate, an adjusting sleeve rod is slidably connected in the inner cavity of the fixed sleeve rod, a connecting leg is fixedly connected to the bottom end of the adjusting sleeve rod, and a contact wheel is rotatably connected to the connecting leg.

[0014] Furthermore, a fixed block is fixedly connected in the inner cavity of the adjusting sleeve rod, a connecting screw is rotatably connected to the upper wall of the inner cavity of the fixing sleeve rod, the connecting screw passes through the fixing block and is threadedly engaged with the fixing block, a bevel gear A is fixedly connected to the arcuate wall of the connecting screw rod, an adjusting disk is rotatably connected to the arcuate wall of the fixing sleeve rod, a bevel gear B is fixedly connected to one end of the adjusting disk, and the bevel gear B and the bevel gear A are meshed with each other.

[0015] Furthermore, the light source adjustment component includes a connecting plate frame, a light source, a round shell, a connecting shell A, a connecting shell B, a light intensity adjustment round plate, a rotating rod, a winding disk and a spring spring, the connecting plate frame is fixedly arranged on the side wall of the connecting tripod, the light source is fixedly connected to the side wall of the connecting plate frame, the round shell is fixedly connected to the front end of the light source, the light-emitting end of the light source extends into the inner cavity of the round shell, the connecting shell A is fixedly connected to the outer wall of one side of the round shell, the connecting shell A is fixedly connected to the side wall of the connecting shell A, and the connecting shell B is fixedly connected to the inner cavity of the connecting shell A. A rotating rod is connected, and both ends of the rotating rod extend into the inner cavity of the round shell and the connecting shell B respectively; a light intensity adjustment circular plate is fixedly connected to one end of the rotating rod; a winding disk is fixedly connected to the arc-shaped wall of the rotating rod; a traction rope is wound and fixedly connected to the arc-shaped wall of the winding disk; the upper end of the traction rope passes through the upper wall of the inner cavity of the connecting shell A and extends outside the wall; the top end of the traction rope is fixedly connected to the bottom surface of the movable plate; one end of a clockwork spring is fixedly connected to the inner cavity wall of the connecting shell B; and the other end of the clockwork spring is fixedly connected to the rotating rod.

[0016] Furthermore, the light intensity modulation circular plate includes filter A, filter B, filter C and filter D, and the optical densities of filter A, filter B, filter C and filter D increase in sequence.

[0017] Furthermore, the lens cleaning structure includes a connecting bracket, a rack, a fixed shell, a rotating shaft, a gear, a bevel gear A, a rotating connecting rod, a bevel gear B, a rotating head, a cleaning plate and a cleaning sponge. The connecting bracket is fixedly arranged at a side position of the fixed plate frame, one end of the connecting bracket is fixedly connected to the rack, the fixed shell is fixedly arranged at the outer wall of the image measuring instrument, a rotating shaft is rotatably connected in the inner cavity of the fixed shell, a gear is fixedly connected to the arc-shaped wall of the rotating shaft, the gear and the rack are meshed with each other, a rotating head is rotatably connected at the bottom end of the fixed shell, one end of the rotating connecting rod is fixedly connected at the upper end of the rotating head, a bevel gear B is fixedly connected at the other end of the rotating connecting rod, a bevel gear A is fixedly connected at the arc-shaped wall of the rotating shaft, the bevel gear A and the bevel gear B are meshed with each other, a cleaning plate is fixedly connected at the bottom end of the rotating head, and a cleaning sponge is fixedly connected to the upper surface of the cleaning plate.

[0018] Furthermore, the workpiece moving platform includes a guide moving plate, a guide rod, a connecting seat, a fixed tripod, a threaded rod C and a servo motor C. The guide rod is fixedly arranged on the upper surface of the fixed base plate, the guide moving plate and the guide rod are slidably connected, the bottom surface of the guide moving plate is fixedly connected with a connecting seat, the fixed tripod is fixedly arranged on the upper surface of the fixed base plate, the side wall of the fixed tripod is fixedly connected with a servo motor C, the output shaft end of the servo motor C is fixedly connected to one end of the threaded rod C, and the threaded rod C passes through the connecting seat and is threadedly matched with the connecting seat.

[0019] Through the above technical solution of the present application, in order to solve the problem that when an ordinary image measuring instrument measures a workpiece with large surface undulations, the distance between the measuring instrument and the workpiece changes when measuring different positions due to the undulations of the workpiece surface, causing measurement errors, the present application designs a distance control component. Through the setting of the distance control component, the distance between the lens and the workpiece surface can be automatically controlled when measuring different positions of the workpiece, so that the height of the image measuring instrument can be automatically adjusted when the undulations of the workpiece surface change, thereby realizing the function of controlling the distance. Furthermore, in order to solve the problem that when an ordinary measuring instrument measures the surface of a workpiece, the height of the image measuring instrument can be automatically adjusted when measuring local and overall measurements. In order to adjust the distance between the lens and the workpiece, and to solve the problem of image measurement effect caused by light intensity due to different measurement distances, a light source adjustment component is designed. Through the setting of the light source adjustment component, the light intensity can be automatically adjusted when measuring at different distances. When the distance between the lens and the workpiece is close, the light intensity can be automatically reduced to avoid reflection or glare caused by high light intensity due to too close distance. On the contrary, the light intensity is automatically increased to ensure sufficient light on the surface of the measured object, and avoid blurring caused by long light propagation distance and weakened light intensity when the distance is far. The self-adjustment function is realized, and no additional power source is required, which is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present application;

[0022] Figure 2 This is a schematic structural diagram of a gantry unit according to an embodiment of the present application;

[0023] Figure 3This is a schematic diagram of the structure of a spacing control component according to an embodiment of the present application;

[0024] Figure 4 This is a schematic diagram of the internal structure of a fixed sleeve rod according to an embodiment of the present application;

[0025] Figure 5 A schematic cross-sectional view of a fixed sleeve rod according to an embodiment of the present application;

[0026] Figure 6 This is a structural schematic diagram of a light source adjustment component according to an embodiment of the present application;

[0027] Figure 7 This is a schematic diagram of the internal structure of a light source adjustment component according to an embodiment of the present application;

[0028] Figure 8 This is a schematic structural diagram of a light intensity adjustment circular plate according to an embodiment of the present application;

[0029] Fig. 9 This is a structural schematic diagram of a lens cleaning structure according to an embodiment of the present application;

[0030] Fig.10 This is a schematic diagram of the internal structure of a lens cleaning structure according to an embodiment of the present application;

[0031] Fig.11 This is a schematic structural diagram of a workpiece moving platform according to an embodiment of the present application.

[0032] In the figure:

[0033] Fixed base plate 1; gantry unit 2, support frame 201, cross bar 202, threaded rod A203, servo motor A204, moving seat 205, fixed plate frame 206, lifting slider 207, servo motor B208, threaded rod B209, connecting arm 210; spacing control component 3, fixed plate 301, moving plate 302, guide rod 303, spring 304, fixed sleeve rod 305, adjustment sleeve rod 306, connecting tripod 307, contact wheel 308, bevel gear A309, bevel gear B310, adjustment disk 311, connecting screw 312, fixing block 313; light source adjustment component 4, connecting plate frame 401, light source 402, round shell 403, connecting shell A404, connecting shell B 405, light intensity adjustment circular plate 406, filter A4061, filter B4062, filter C4063, filter D4064, rotating rod 407, winding disk 408, spring spring 409, traction rope 410; image measuring instrument 5; lens cleaning structure 6, connecting bracket 601, rack 602, fixed shell 603, rotating shaft 604, gear 605, bevel gear A606, rotating connecting rod 607, bevel gear B608, rotating head 609, cleaning plate 610, cleaning sponge 611; workpiece moving platform 7, guide moving plate 701, guide rod 702, connecting seat 703, fixed tripod 704, threaded rod C705, servo motor C706; workpiece to be measured 8. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0035] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0036] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0037] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0038] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] See also Figure 1 As shown, an image measuring instrument positioning device, the image measuring instrument positioning device comprises:

[0040] A fixed base plate 1, a gantry unit 2 is fixedly connected to the upper surface of the fixed base plate 1, a spacing control component 3 is fixedly connected to the front end of the gantry unit 2, an image measuring instrument 5 is fixedly connected to one side of the spacing control component 3, the gantry unit 2 is used to move and adjust the position of the image measuring instrument 5, and the spacing control component 3 is used to automatically adjust the spacing between the image measuring instrument 5 and the workpiece 8 to be measured;

[0041] A light source adjustment component 4, which is fixedly arranged at the bottom end of the spacing control component 3 and is used to adjust the light intensity during measurement;

[0042] A lens cleaning structure 6, wherein the lens cleaning structure 6 is fixedly arranged on the outer side wall of the image measuring instrument 5, and the lens cleaning structure 6 is used to automatically clean the lens;

[0043] The workpiece moving platform 7 is used to fix the workpiece 8 to be measured and adjust the position of the workpiece 8 to be measured.

[0044] Through the above technical scheme, through the setting of the spacing control component 3, the distance between the lens and the workpiece surface can be automatically controlled when measuring at different positions of the workpiece, so that when the surface of the workpiece fluctuates, the height of the image measuring instrument 5 is automatically adjusted, thereby realizing the function of controlling the distance. Further, in order to solve the problem that when ordinary measuring instruments measure the surface of the workpiece, it is necessary to adjust the distance between the lens and the workpiece during local measurement and overall measurement, and the image measurement effect of the light intensity caused by different measurement distances, a light source adjustment component 4 is designed. Through the setting of the light source adjustment component 4, the light intensity can be automatically adjusted when measuring at different distances. When the distance between the lens and the workpiece is close, the light intensity can be automatically reduced to avoid reflection or glare caused by high light intensity due to too close distance. On the contrary, the light intensity is automatically increased to ensure that the light on the surface of the measured object is sufficient, and when the distance is far, the blurring caused by the weakened light intensity due to the long light propagation distance is avoided. The self-adjustment function is realized, and no additional power source is required, which is easy to use.

[0045] For further technical solutions, see Figure 2 As shown, the gantry unit 2 includes a support frame 201, a cross bar 202, a threaded rod A203, a servo motor A204, a moving seat 205, a fixed plate frame 206, a lifting slider 207, a servo motor B208 and a threaded rod B209. The support frame 201 is fixedly arranged on the upper surface of the fixed bottom plate 1, and the side wall of the support frame 201 is fixedly connected with a cross bar 202, and the moving seat 205 is slidably connected to the cross bar 202. The threaded rod A203 is rotatably connected between the two support frames 201. The threaded rod A203 203 penetrates the movable seat 205 and is threadedly matched with the movable seat 205. A servo motor A204 is fixedly connected to the side wall of the support frame 201. The end of the output shaft of the servo motor A204 is fixedly connected to one end of the threaded rod A203. Through the technical solution, the threaded rod A203 can be driven to rotate by the operation of the servo motor A204, and the movable seat 205 can be driven to move by the rotation of the threaded rod A203, thereby realizing the lateral movement function of the image measuring instrument 5 and realizing the function of detecting different positions;

[0046] The fixed plate frame 206 is fixedly arranged on the side wall of the movable seat 205, and a guide groove is opened on the fixed plate frame 206. A lifting slider 207 is slidably connected to the guide groove of the fixed plate frame 206. A threaded rod B209 is rotatably connected between the upper and lower ends of the fixed plate frame 206. The threaded rod B209 penetrates the lifting slider 207 and is threadedly matched with the lifting slider 207. A servo motor B208 is fixedly connected to the upper surface of the fixed plate frame 206. The end of the output shaft of the servo motor B208 is fixedly connected to the upper end of the threaded rod B209. A connecting arm 210 is fixedly connected to the side wall of the lifting slider 207. Through the present technical solution, the threaded rod B209 can be driven to rotate by the operation of the servo motor B208, and then the lifting slider 207 can be driven to move by the rotation of the threaded rod B209, so that the connecting arm 210 can be driven to move by the movement of the lifting slider 207, thereby realizing the function of vertical movement and adjustment of the image measuring instrument 5.

[0047] For specific technical solutions, please refer to Figure 3 , Figure 4 and Figure 5 As shown, the spacing control assembly 3 includes a fixed plate 301, a movable plate 302, a guide rod 303, a spring 304, a fixed sleeve rod 305, an adjustment sleeve rod 306, a connecting bracket 307 and a contact wheel 308. The fixed plate 301 is fixedly arranged at the front end of the connecting arm 210, and the guide rods 303 are fixedly connected to both sides of the upper surface of the movable plate 302. The guide rods 303 penetrate the fixed plate 301 and slide with the fixed plate 301. One end of a spring 304 is fixedly connected to the side of each of the movable plates 302, and the other end of the spring 304 is fixedly connected to the bottom surface of the fixed plate 301. An image measuring instrument 5 is fixedly connected to the side wall of the movable plate 302. A fixed sleeve rod 305 is fixedly connected to the bottom surface of the movable plate 302. An adjusting sleeve rod 306 is slidably connected in the inner cavity of the fixed sleeve rod 305. A connecting tripod 307 is fixedly connected to the bottom end of the adjusting sleeve rod 306. A contact wheel 308 is rotatably connected to the connecting tripod 307.

[0048] A fixing block 313 is fixedly connected in the inner cavity of the adjusting sleeve 306, a connecting screw 312 is rotatably connected at the upper wall of the inner cavity of the fixing sleeve 305, the connecting screw 312 passes through the fixing block 313 and is threadedly matched with the fixing block 313, a bevel gear A309 is fixedly connected at the arc wall of the connecting screw 312, an adjusting disk 311 is rotatably connected at the arc wall of the fixing sleeve 305, a bevel gear B310 is fixedly connected at one end of the adjusting disk 311, and the bevel gear B310 is rotatably connected to the bevel gear A309. 309 are meshed with each other. According to the technical solution, when measuring workpieces of different materials or different measurement methods, it is necessary to adjust the distance between the lens of the image measuring instrument 5 and the workpiece. When adjusting the distance, the bevel gear B310 can be driven to rotate by rotating the adjusting disk 311, so that the bevel gear A309 can be driven to rotate by the rotation of the bevel gear B310, and then the connecting screw 312 can be driven to rotate, so that the fixing block 313 can be driven to move, and then the adjusting sleeve rod 306 can be driven to move. The movement of the joint sleeve rod 306 can drive the contact wheel 308 to move and adjust the position of the contact wheel 308. When measuring, the image measuring instrument 5 and the spacing control component 3 are driven to descend by lowering the connecting arm 210, so that the contact wheel 308 contacts the surface of the workpiece. The contact wheel 308 contacts the surface of the workpiece, thereby controlling the spacing between the lens of the image measuring instrument 5 and the workpiece. When the gantry unit 2 drives the image measuring instrument 5 to move horizontally, so that image measurement is performed on different positions of the workpiece surface, the contact wheel 308 can be driven to roll on the workpiece surface at the same time. When the surface of the workpiece fluctuates, the contact wheel 308 can be driven to move up and down at the same time, thereby driving the moving plate 302 to move up and down synchronously, and then driving the image measuring instrument 5 to move synchronously, so that when measuring at different concave and convex positions of the workpiece, the same spacing is maintained, thereby avoiding measurement errors caused by different spacings due to fluctuations in the workpiece. It is more suitable for measuring workpieces with large surface fluctuations, and realizes the function of automatic adjustment according to the fluctuations of the workpiece surface.

[0049] As a preferred technical solution, please refer to Figure 6 , Figure 7 and Figure 8As shown, the light source adjustment component 4 includes a connecting plate frame 401, a light source 402, a round shell 403, a connecting shell A404, a connecting shell B405, a light intensity adjustment circular plate 406, a rotating rod 407, a winding disk 408 and a clockwork spring 409, the connecting plate frame 401 is fixedly arranged on the side wall of the connecting tripod 307, the light source 402 is fixedly connected to the side wall of the connecting plate frame 401, the round shell 403 is fixedly connected to the front end of the light source 402, the light emitting end of the light source 402 extends into the inner cavity of the round shell 403, the connecting shell A404 is fixedly connected to the outer wall of one side of the round shell 403, the connecting shell B405 is fixedly connected to the side wall of the connecting shell A404, the rotating rod 407 is rotatably connected in the inner cavity of the connecting shell A404, and the rotating The two ends of the rod 407 extend into the inner cavities of the circular shell 403 and the connecting shell B405 respectively, a light intensity regulating circular plate 406 is fixedly connected to one end of the rotating rod 407, a winding disk 408 is fixedly connected to the arc-shaped wall of the rotating rod 407, a traction rope 410 is wound and fixedly connected to the arc-shaped wall of the winding disk 408, the upper end of the traction rope 410 passes through the upper wall of the inner cavity of the connecting shell A404 and extends outside the wall, the top of the traction rope 410 is fixedly connected to the bottom surface of the movable plate 302, one end of a clockwork spring 409 is fixedly connected to the inner cavity wall of the connecting shell B405, the other end of the clockwork spring 409 is fixedly connected to the rotating rod 407, through the technical solution, light can be emitted by the light source 402, and it serves as a supplementary light source for the workpiece 8 to be measured;

[0050] The light intensity tuning circular plate 406 comprises a filter A4061, a filter B4062, a filter C4063 and a filter D4064, and the optical densities of the filters A4061, B4062, C4063 and D4064 are increased in sequence. According to the technical solution, the light intensity tuning circular plate 406 is arranged so that the light emitted by the light source 402 is irradiated on the surface of the workpiece through the light intensity tuning circular plate 406. When adjusting the distance between the lens of the image measuring instrument 5 and the workpiece, the extension length of the adjusting sleeve rod 306 is adjusted by rotating the adjusting disk 311, thereby adjusting the distance between the workpiece and the lens. When the distance is reduced, the light source adjustment component 4 moves upward relative to the image measuring instrument 5. At this time, the clockwork spring drives the rotating rod 407 to rotate counterclockwise, thereby driving the light intensity tuning circular plate 406 to rotate counterclockwise, thereby The counterclockwise rotation of the intensity modulation circular plate 406 causes the filter with higher optical density to move to the light-emitting end of the light source 402. Through the action of the filter, the light intensity can be reduced, and reflection or glare caused by high light intensity due to too close a distance can be effectively avoided. Conversely, when the distance between the lens of the image measuring instrument 5 and the workpiece increases, the light source adjustment component 4 moves downward relative to the image measuring instrument 5. When the light source adjustment component 4 moves downward, due to the traction effect of the traction rope 410, the winding disk 408 can be driven to rotate clockwise, thereby driving the light intensity modulation circular plate 406 to rotate clockwise, so that the filter with lower optical density moves to the light-emitting end of the light source 402, so that the light intensity is increased, thereby ensuring that there is sufficient light on the surface of the measured object, avoiding the blurring phenomenon caused by the long light propagation distance and the weakened light intensity when the distance is far, and realizing the self-adjustment function.

[0051] As a preferred technical solution, please refer to Fig. 9 and Fig.10As shown, the lens cleaning structure 6 includes a connecting bracket 601, a rack 602, a fixed shell 603, a rotating shaft 604, a gear 605, a bevel gear A 606, a rotating connecting rod 607, a bevel gear B 608, a rotating head 609, a cleaning plate 610 and a cleaning sponge 611. The connecting bracket 601 is fixedly arranged at the side position of the fixed plate frame 206, and the rack 602 is fixedly connected to one end of the connecting bracket 601. The fixed shell 603 is fixedly arranged on the outer wall of the image measuring instrument 5, and the inner cavity of the fixed shell 603 rotates. A rotating shaft 604 is connected, a gear 605 is fixedly connected to the arc wall of the rotating shaft 604, the gear 605 and the rack 602 are meshed with each other, a rotating head 609 is rotatably connected to the bottom end of the fixed shell 603, one end of a rotating connecting rod 607 is fixedly connected to the upper end of the rotating head 609, a bevel gear B608 is fixedly connected to the other end of the rotating connecting rod 607, a bevel gear A606 is fixedly connected to the arc wall of the rotating shaft 604, the bevel gear A606 and the bevel gear B608 are meshed with each other, the A cleaning plate 610 is fixedly connected to the bottom end of the rotating head 609, and a cleaning sponge 611 is fixedly connected to the upper surface of the cleaning plate 610. According to the technical solution, when measuring different workpieces, the gantry unit 2 drives the image measuring instrument 5 to move upward, so that it is away from the workpiece and the workpiece is replaced. When the image measuring instrument 5 moves upward, it can drive the fixed shell 603 to move upward, thereby driving the gear 605 to move upward along the rack 602, so that the gear 605 rotates, and the rotation shaft 604 is driven by the rotation of the gear 605. The bevel gear A606 is rotated, and the bevel gear B608 is rotated by the rotation of the bevel gear A606, and the rotating connecting rod 607 is rotated. The rotating head 609 can be rotated by the rotation of the rotating connecting rod 607, and the cleaning plate 610 and the cleaning sponge 611 are rotated, so that the cleaning sponge 611 rotates to wipe the lens of the image measuring instrument 5, which plays the role of automatic cleaning. No additional power source is required, and the function of automatic cleaning is realized in the gap between changing workpieces, which is more convenient and flexible to use.

[0052] For further technical solutions, see Fig.11As shown, the workpiece moving platform 7 includes a guide moving plate 701, a guide rod 702, a connecting seat 703, a fixed tripod 704, a threaded rod C705 and a servo motor C706. The guide rod 702 is fixedly arranged on the upper surface of the fixed base plate 1. The guide moving plate 701 and the guide rod 702 are slidably connected. The bottom surface of the guide moving plate 701 is fixedly connected with the connecting seat 703. The fixed tripod 704 is fixedly arranged on the upper surface of the fixed base plate 1. The side wall of the fixed tripod 704 is fixedly connected with the servo motor C706. The end of the output shaft of the servo motor C706 is connected to the threaded rod One end of C705 is fixedly connected, and the threaded rod C705 passes through the connecting seat 703 and is threadedly matched with the connecting seat 703. Through the present technical solution, the operation of the servo motor C706 can drive the threaded rod C705 to rotate, and the rotation of the threaded rod C705 can drive the connecting seat 703 to move, thereby driving the guide movable plate 701 to move, and the movement of the guide movable plate 701 can drive the workpiece 8 to be measured to move, thereby realizing the function of adjusting the position, and by arranging a corresponding workpiece fixture on the upper surface of the guide movable plate 701, different workpieces can be fixed, which is convenient for image measurement.

[0053] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. Image measuring instrument positioning equipment, characterized in that: The image measuring instrument positioning device comprises: A fixed base plate (1), wherein a gantry unit (2) is fixedly connected to the upper surface of the fixed base plate (1), a spacing control component (3) is fixedly connected to the front end of the gantry unit (2), an image measuring instrument (5) is fixedly connected to one side of the spacing control component (3), the gantry unit (2) is used to move and adjust the position of the image measuring instrument (5), and the spacing control component (3) is used to automatically adjust the spacing between the image measuring instrument (5) and a workpiece (8) to be measured; A light source adjustment component (4), the light source adjustment component (4) being fixedly arranged at the bottom end of the spacing control component (3), and the light source adjustment component (4) being used to adjust the light intensity during measurement; A lens cleaning structure (6), wherein the lens cleaning structure (6) is fixedly arranged on an outer side wall of the image measuring instrument (5), and the lens cleaning structure (6) is used to automatically clean the lens; A workpiece moving platform (7), wherein the workpiece moving platform (7) is used to fix the workpiece to be measured (8) and adjust the position of the workpiece to be measured (8); The gantry unit (2) comprises a support frame (201), a cross bar (202), a threaded rod A (203), a servo motor A (204), a movable seat (205), a fixed plate frame (206), a lifting slider (207), a servo motor B (208) and a threaded rod B (209); the support frame (201) is fixedly arranged on the upper surface of the fixed base plate (1); a cross bar (202) is fixedly connected to the side wall of the support frame (201); a movable seat (205) is slidably connected to the cross bar (202); a threaded rod A (203) is rotatably connected between the two support frames (201); the threaded rod A (203) passes through the movable seat (205) and is threadedly engaged with the movable seat (205); a servo motor A (204) is fixedly connected to the side wall of the support frame (201); and a terminal end of an output shaft of the servo motor A (204) is fixedly connected to one end of the threaded rod A (203); The fixed plate frame (206) is fixedly arranged on the side wall of the movable seat (205); a guide groove is provided on the fixed plate frame (206); a lifting slider (207) is slidably connected to the guide groove of the fixed plate frame (206); a threaded rod B (209) is rotatably connected between the upper and lower ends of the fixed plate frame (206); the threaded rod B (209) penetrates the lifting slider (207) and is threadedly matched with the lifting slider (207); a servo motor B (208) is fixedly connected to the upper surface of the fixed plate frame (206); the output shaft end of the servo motor B (208) is fixedly connected to the upper end of the threaded rod B (209); and a connecting arm (210) is fixedly connected to the side wall of the lifting slider (207); The spacing control assembly (3) comprises a fixed plate (301), a movable plate (302), a guide rod (303), a spring (304), a fixed sleeve rod (305), an adjustment sleeve rod (306), a connecting bracket (307) and a contact wheel (308); the fixed plate (301) is fixedly arranged at the front end of the connecting arm (210); guide rods (303) are fixedly connected to both sides of the upper surface of the movable plate (302); the guide rods (303) penetrate the fixed plate (301) and are slidably matched with the fixed plate (301); the upper surface of the movable plate (302) One end of a spring (304) is fixedly connected to both sides of the surface, the other end of the spring (304) is fixedly connected to the bottom surface of the fixed plate (301), an image measuring instrument (5) is fixedly connected to the side wall of the movable plate (302), a fixed sleeve rod (305) is fixedly connected to the bottom surface of the movable plate (302), an adjusting sleeve rod (306) is slidably connected in the inner cavity of the fixed sleeve rod (305), a connecting tripod (307) is fixedly connected to the bottom end of the adjusting sleeve rod (306), and a contact wheel (308) is rotatably connected to the connecting tripod (307); A fixing block (313) is fixedly connected in the inner cavity of the adjusting sleeve rod (306); a connecting screw (312) is rotatably connected to the upper wall of the inner cavity of the fixing sleeve rod (305); the connecting screw (312) passes through the fixing block (313) and is threadedly engaged with the fixing block (313); a bevel gear A (309) is fixedly connected to the arcuate wall of the connecting screw (312); an adjusting disk (311) is rotatably connected to the arcuate wall of the fixing sleeve rod (305); a bevel gear B (310) is fixedly connected to one end of the adjusting disk (311); the bevel gear B (310) and the bevel gear A (309) are meshed with each other; The light source adjustment assembly (4) comprises a connecting plate frame (401), a light source (402), a round shell (403), a connecting shell A (404), a connecting shell B (405), a light intensity adjustment round plate (406), a rotating rod (407), a winding disk (408) and a spring (409); the connecting plate frame (401) is fixedly arranged on the side wall of the connecting tripod (307); the light source (402) is fixedly connected to the side wall of the connecting plate frame (401); the round shell (403) is fixedly connected to the front end of the light source (402); the light emitting end of the light source (402) extends into the inner cavity of the round shell (403); the connecting shell A (404) is fixedly connected to the outer wall of one side of the round shell (403); the connecting shell B (405) is fixedly connected to the side wall of the connecting shell A (404); the connecting shell A (404) is fixedly connected to the connecting shell B (405); 04), the inner cavity of which is rotatably connected to a rotating rod (407), the two ends of the rotating rod (407) respectively extending into the inner cavities of the circular shell (403) and the connecting shell B (405), one end of the rotating rod (407) being fixedly connected to a light intensity adjustment circular plate (406), the arc-shaped wall of the rotating rod (407) being fixedly connected to a winding disk (408), the arc-shaped wall of the winding disk (408) being wound and fixedly connected to a traction rope (410), the upper end of the traction rope (410) passing through the upper wall of the inner cavity of the connecting shell A (404) and extending outside the wall, the top end of the traction rope (410) being fixedly connected to the bottom surface of the moving plate (302), one end of a clockwork spring (409) being fixedly connected to the inner cavity wall of the connecting shell B (405), the other end of the clockwork spring (409) being fixedly connected to the rotating rod (407); The light intensity modulation circular plate (406) comprises a filter A (4061), a filter B (4062), a filter C (4063) and a filter D (4064), wherein the optical densities of the filter A (4061), the filter B (4062), the filter C (4063) and the filter D (4064) increase in sequence.

2. The image measuring instrument positioning device according to claim 1, characterized in that: The lens cleaning structure (6) comprises a connecting bracket (601), a rack (602), a fixed shell (603), a rotating shaft (604), a gear (605), a bevel gear A (606), a rotating connecting rod (607), a bevel gear B (608), a rotating head (609), a cleaning plate (610) and a cleaning sponge (611), wherein the connecting bracket (601) is fixedly arranged at a side position of the fixed plate frame (206), one end of the connecting bracket (601) is fixedly connected to the rack (602), the fixed shell (603) is fixedly arranged at the outer wall of the image measuring instrument (5), the rotating shaft (604) is rotatably connected in the inner cavity of the fixed shell (603), and the arc-shaped rotating shaft (604) A gear (605) is fixedly connected to the wall, and the gear (605) and the rack (602) are meshed with each other. A rotating head (609) is rotatably connected to the bottom end of the fixed shell (603), and one end of a rotating connecting rod (607) is fixedly connected to the upper end of the rotating head (609), and a bevel gear B (608) is fixedly connected to the other end of the rotating connecting rod (607). A bevel gear A (606) is fixedly connected to the arc-shaped wall of the rotating shaft (604), and the bevel gear A (606) and the bevel gear B (608) are meshed with each other. A cleaning plate (610) is fixedly connected to the bottom end of the rotating head (609), and a cleaning sponge (611) is fixedly connected to the upper surface of the cleaning plate (610).

3. The image measuring instrument positioning device according to claim 1, characterized in that: The workpiece moving platform (7) comprises a guide moving plate (701), a guide rod (702), a connecting seat (703), a fixed tripod (704), a threaded rod C (705) and a servo motor C (706); the guide rod (702) is fixedly arranged on the upper surface of the fixed base plate (1); the guide moving plate (701) and the guide rod (702) are slidably connected; the connecting seat (703) is fixedly connected to the bottom surface of the guide moving plate (701); the fixed tripod (704) is fixedly arranged on the upper surface of the fixed base plate (1); the servo motor C (706) is fixedly connected to the side wall of the fixed tripod (704); the output shaft end of the servo motor C (706) is fixedly connected to one end of the threaded rod C (705); the threaded rod C (705) passes through the connecting seat (703) and is threadedly engaged with the connecting seat (703).

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