Omnidirectional image measuring instrument

Abstract

This invention discloses an omnidirectional image measuring instrument, comprising a base, a marble platform, a worktable, a Z-axis lifting seat, a lens assembly, and a light source assembly. The marble platform is disposed on one side of the upper surface of the base, and the worktable is located on the upper surface of the marble platform. A column is vertically disposed on one side of the marble platform, and a display is fixedly mounted on the side of the column. The Z-axis lifting seat is mounted on the column and located above the worktable. The lens assembly is mounted on the Z-axis lifting seat and can move up and down under the drive of the Z-axis lifting seat. The light source assembly is mounted below the lens assembly. An X-axis drive mechanism and a Y-axis drive mechanism are respectively installed on two adjacent sides of the worktable. Several handling handles are respectively installed on both sides of the marble platform. This invention utilizes a combination of three tilting bearings to generate stable friction between the bearings and the optical rod, thereby achieving the reciprocating motion of the movable block by rotating the optical rod with high motion accuracy and stability.

Description

Technical Field

[0001] This invention relates to a precision measuring device, and more particularly to an omnidirectional image measuring instrument. Background Technology

[0002] A 360-degree vision measuring instrument is a device capable of precisely measuring the dimensions of small parts. It can quickly read the displacement values ​​of an optical scale and, through software modules based on spatial geometry, rapidly obtain the desired measurement results. The 360-degree vision measuring instrument is a guarantee of machining parts inspection technology and is one of the most widely used inspection instruments. It is widely applied in mold making, precision hardware, military, aerospace, and electronics industries, ranking among the top in the measuring equipment industry due to its high precision, fast measurement speed, and powerful measurement functions. With technological advancements and the continuous improvement of customer measurement needs, the requirements for 360-degree vision measuring instruments are also constantly increasing. Summary of the Invention

[0003] This invention provides an omnidirectional imaging measuring instrument. This omnidirectional imaging measuring instrument uses a combination of three tilting bearings to generate a stable frictional force between the bearings and the optical rod, thereby achieving the reciprocating motion of the movable block by rotating the optical rod with high motion accuracy and stability.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: an all-around image measuring instrument, comprising a base, a marble platform, a worktable, a Z-axis lifting seat, a lens assembly, and a light source assembly. The marble platform is disposed on one side of the upper surface of the base, the worktable is located on the upper surface of the marble platform, a column is vertically disposed on one side of the marble platform, a display is fixedly mounted on the side of the column, the Z-axis lifting seat is mounted on the column and located above the worktable, the lens assembly is mounted on the Z-axis lifting seat and can move up and down under the drive of the Z-axis lifting seat, the light source assembly is mounted below the lens assembly, and an X-axis drive mechanism and a Y-axis drive mechanism are respectively installed on two adjacent sides of the worktable for driving the worktable to move along the X-axis or Y-axis direction. Several handling handles are respectively installed on both sides of the marble platform.

[0005] The X-axis drive mechanism further includes a light rod, mounting plates respectively installed at both ends of the light rod, and a movable block installed on the light rod and movable along the axial direction of the light rod. The movable block is located between the two mounting plates and is fixedly connected to the worktable, and is used to drive the worktable to move in the X-axis direction. The light rod and the mounting plates are rotatably connected through bearing seats.

[0006] The movable block has an inner cavity in which a first bearing, a second bearing, and a third bearing are disposed. The first bearing, the second bearing, and the third bearing are sequentially mounted on the smooth rod. A wedge-shaped isolation block is provided between each of the two adjacent bearings. A pressure plate is fixed at each end of the movable block.

[0007] The first, second, and third bearings are all inclined. The inclination direction and angle of the first and third bearings are the same. The inclination direction of the second bearing is opposite to that of the first and third bearings, but the inclination angle is the same. A threaded hole is opened on one side surface of the movable block. One end of an adjusting bolt is screwed into the movable block and presses against the second bearing. The other end of the adjusting bolt extends out of the movable block and is connected to an adjusting handle.

[0008] The light source assembly further includes a sleeve, a reflector, a ring light source, and a coaxial light source. The upper end of the sleeve is installed and connected to the lens assembly. The ring light source is located at the lower end of the sleeve. The reflector is installed inside the sleeve at a 45° angle. The coaxial light source is installed vertically in the middle of the sleeve. The light from this coaxial light source is directed horizontally toward the reflector and reflected by the reflector, then emitted vertically downwards.

[0009] The following are further improvements to the above technical solution:

[0010] 1. In the above scheme, a rotating handwheel is connected to one end of the optical rod.

[0011] 2. In the above scheme, one end of the optical rod is connected to the output shaft of the motor via a coupling.

[0012] 3. In the above solution, the host of the display is placed below the base plate, and the mouse and keyboard of the display are placed on the upper surface of the base and located on one side of the workbench.

[0013] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0014] 1. The present invention provides an omnidirectional image measuring instrument, wherein the movable block has an inner cavity in which a first bearing, a second bearing, and a third bearing are disposed. The first bearing, the second bearing, and the third bearing are sequentially mounted on a guide rod. A wedge-shaped isolation block is provided between each pair of adjacent bearings. A pressure plate is fixed to each end of the movable block. The first bearing, the second bearing, and the third bearing are all inclined. The inclination direction and angle of the first bearing and the third bearing are the same, while the inclination direction of the second bearing is opposite to that of the first bearing and the third bearing, but the inclination angle is the same. Through the combination of the three inclined bearings, a stable friction can be generated between the bearings and the guide rod. The friction force, through the rotation of the guide rod, drives the movable block to reciprocate along the axis of the guide rod, thereby further driving the work platform to move in the X-axis direction, with stable movement and high precision. In addition, a threaded hole is opened on one side surface of the movable block, one end of which is screwed into the movable block and pressed against the second bearing. The other end of the adjusting bolt extends out of the movable block and is connected to an adjusting handle. The setting of the adjusting bolt means that the pressure of the second bearing can be adjusted by rotating the adjusting handle, thereby adjusting the friction force between the bearing and the guide rod, and further adjusting the driving speed, which is convenient for adjusting the driving speed under different usage conditions.

[0015] 2. The omnidirectional imaging measuring instrument of the present invention further includes a sleeve, a reflector, a ring light source, and a coaxial light source in its light source assembly. The upper end of the sleeve is connected to the lens assembly, the ring light source is located at the lower end of the sleeve, the reflector is installed at a 45° angle inside the sleeve, and the coaxial light source is vertically installed in the middle of the sleeve. The light from this coaxial light source is horizontally directed towards the reflector and reflected by the reflector to be emitted vertically downwards. Due to the arrangement of the lens assembly above the light source assembly, the circular area in the center of the ring light source cannot be equipped with LED beads to avoid misalignment. This prevents the light source from illuminating the center of the workpiece below, affecting the imaging of the center of the workpiece, especially when there is a deep blind hole in the center of the workpiece. The arrangement of the coaxial light source and the reflector cleverly solves the above problems through light reflection, allowing the center and edges of the workpiece to be measured to receive good illumination conditions, thereby improving the imaging and measurement accuracy of the workpiece. Attached Figure Description

[0016] Appendix Figure 1 This is a schematic diagram of the three-dimensional structure of the omnidirectional image measuring instrument of the present invention;

[0017] Appendix Figure 2 This is a schematic diagram of the worktable structure in the omnidirectional image measuring instrument of the present invention;

[0018] Appendix Figure 3 This is a partial structural diagram of the omnidirectional image measuring instrument of the present invention;

[0019] Appendix Figure 4 This is a partial structural exploded view of the omnidirectional image measuring instrument of the present invention;

[0020] Appendix Figure 5 This is a schematic diagram of the light source component structure in the omnidirectional image measuring instrument of the present invention.

[0021] In the attached diagrams: 1. Z-axis lifting seat; 2. Lens assembly; 3. Worktable; 4. Handle; 5. Marble platform; 6. Main unit; 7. Power switch; 8. Leveling screw seat; 9. Column; 10. Monitor; 12. Mouse; 13. Keyboard; 14. Base; 15. Light source assembly; 23. X-axis drive mechanism; 24. Y-axis drive mechanism; 25. Light rod; 27. Movable block; 281. First bearing; 282. Second bearing; 283. Third bearing; 29. ​​Wedge-shaped isolation block; 30. Pressure plate; 31. Adjusting bolt; 32. Adjusting handle; 36. Sleeve; 37. Reflector; 38. Ring light source; 39. Coaxial light source. Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0023] Example 1: An all-around image measuring instrument includes a base 14, a marble platform 5, a worktable 3, a Z-axis lifting seat 1, a lens assembly 2, and a light source assembly 15. The marble platform 5 is disposed on one side of the upper surface of the base 14, and the worktable 3 is located on the upper surface of the marble platform 5. A column 9 is vertically disposed on one side of the marble platform 5. The Z-axis lifting seat 1 is mounted on the column 9 and located above the worktable 3. The lens assembly 2 is mounted on the Z-axis lifting seat 1 and can move up and down under the drive of the Z-axis lifting seat 1. The light source assembly 15 is mounted below the lens assembly 2. An X-axis drive mechanism 23 and a Y-axis drive mechanism 24 are respectively installed on two adjacent sides of the worktable 3 for driving the worktable 3 to move along the X-axis or Y-axis direction.

[0024] The X-axis drive mechanism 23 further includes a light rod 25, mounting plates respectively installed at both ends of the light rod 25, and a movable block 27 installed on the light rod 25 and movable along the axial direction of the light rod 25. The movable block 27 is located between the two mounting plates and is fixedly connected to the worktable 3, and is used to drive the worktable 3 to move in the X-axis direction. The light rod 25 and the mounting plate are rotatably connected through a bearing seat.

[0025] The movable block 27 has an inner cavity in which a first bearing 281, a second bearing 282 and a third bearing 283 are disposed. The first bearing 281, the second bearing 282 and the third bearing 283 are sequentially mounted on the smooth rod 25. A wedge-shaped isolation block 29 is provided between each of the two adjacent bearings. A pressure plate 30 is fixed at each end of the movable block 27.

[0026] The first bearing 281, the second bearing 282, and the third bearing 283 are all inclined. The inclination direction and angle of the first bearing 281 and the third bearing 283 are the same. The inclination direction of the second bearing 282 is opposite to that of the first bearing 281 and the third bearing 283, but the inclination angle is the same. A threaded hole is opened on one side surface of the movable block 27. One end of an adjusting bolt 31 is screwed into the movable block 27 and presses against the second bearing 282. The other end of the adjusting bolt 31 extends out of the movable block 27 and is connected to an adjusting handle 32.

[0027] The light source assembly 15 further includes a sleeve 36, a reflector 37, a ring light source 38, and a coaxial light source 39. The upper end of the sleeve 36 is connected to the lens assembly 2. The ring light source 38 is disposed at the lower end of the sleeve 36. The reflector 37 is installed at a 45° angle inside the sleeve 36. The coaxial light source 39 is vertically installed in the middle of the sleeve 36. The light from the coaxial light source 39 is directed horizontally toward the reflector 37 and reflected by the reflector 37, then emitted vertically downwards.

[0028] A monitor 10 is fixedly mounted on the side of the aforementioned column 9. The host 6 of the monitor 10 is placed under the base plate of the base 14. The mouse 12 and keyboard 13 of the monitor 10 are both placed on the upper surface of the base 14 and located on one side of the workbench 3. One end of the aforementioned light rod 25 is connected to the output shaft of the motor through a coupling.

[0029] Example 2: An all-around image measuring instrument includes a base 14, a marble platform 5, a worktable 3, a Z-axis lifting seat 1, a lens assembly 2, and a light source assembly 15. The marble platform 5 is disposed on one side of the upper surface of the base 14, and the worktable 3 is located on the upper surface of the marble platform 5. A column 9 is vertically disposed on one side of the marble platform 5. The Z-axis lifting seat 1 is mounted on the column 9 and located above the worktable 3. The lens assembly 2 is mounted on the Z-axis lifting seat 1 and can move up and down under the drive of the Z-axis lifting seat 1. The light source assembly 15 is mounted below the lens assembly 2. An X-axis drive mechanism 23 and a Y-axis drive mechanism 24 are respectively installed on two adjacent sides of the worktable 3 for driving the worktable 3 to move along the X-axis direction or the Y-axis direction.

[0030] The X-axis drive mechanism 23 further includes a light rod 25, mounting plates respectively installed at both ends of the light rod 25, and a movable block 27 installed on the light rod 25 and movable along the axial direction of the light rod 25. The movable block 27 is located between the two mounting plates and is fixedly connected to the worktable 3, and is used to drive the worktable 3 to move in the X-axis direction. The light rod 25 and the mounting plate are rotatably connected through a bearing seat.

[0031] The movable block 27 has an inner cavity in which a first bearing 281, a second bearing 282 and a third bearing 283 are disposed. The first bearing 281, the second bearing 282 and the third bearing 283 are sequentially mounted on the smooth rod 25. A wedge-shaped isolation block 29 is provided between each of the two adjacent bearings. A pressure plate 30 is fixed at each end of the movable block 27.

[0032] The first bearing 281, the second bearing 282, and the third bearing 283 are all inclined. The inclination direction and angle of the first bearing 281 and the third bearing 283 are the same. The inclination direction of the second bearing 282 is opposite to that of the first bearing 281 and the third bearing 283, but the inclination angle is the same. A threaded hole is opened on one side surface of the movable block 27. One end of an adjusting bolt 31 is screwed into the movable block 27 and presses against the second bearing 282. The other end of the adjusting bolt 31 extends out of the movable block 27 and is connected to an adjusting handle 32.

[0033] The light source assembly 15 further includes a sleeve 36, a reflector 37, a ring light source 38, and a coaxial light source 39. The upper end of the sleeve 36 is connected to the lens assembly 2. The ring light source 38 is disposed at the lower end of the sleeve 36. The reflector 37 is installed at a 45° angle inside the sleeve 36. The coaxial light source 39 is vertically installed in the middle of the sleeve 36. The light from the coaxial light source 39 is directed horizontally toward the reflector 37 and reflected by the reflector 37, then emitted vertically downwards.

[0034] The base 14 includes a base plate and at least three support columns; a leveling screw seat 8 is installed on the lower surface of each support column; a power switch 7 is installed on each support column; several handling handles 4 are installed on both sides of the marble platform 5; a rotating handwheel is connected to one end of the light rod 25.

[0035] When using the aforementioned omnidirectional imaging measuring instrument, the combination of three tilting bearings creates a stable frictional force between the bearings and the optical rod. By rotating the optical rod, the moving block is driven to reciprocate along the axial direction of the optical rod, thereby further driving the work platform to move in the X-axis direction. The movement is stable and highly accurate. In addition, the setting of the adjusting bolt allows for adjustment of the pressure of the second bearing by rotating the adjusting handle, thereby adjusting the frictional force between the bearing and the optical rod, and further adjusting the drive speed, which is convenient for adjusting the drive speed under different usage conditions. Furthermore, due to the setting of the lens assembly above the light source assembly, the circular area in the center of the ring light source cannot be equipped with LED beads in order to avoid obstruction. This means that when the light source illuminates the workpiece below, it cannot illuminate the center of the workpiece, affecting the imaging of the center of the workpiece, especially when there is a deep blind hole in the center of the workpiece. The setting of the coaxial light source and the reflector cleverly solves the above problems through light reflection, so that the center and edges of the workpiece to be measured can receive good illumination conditions, thereby improving the imaging and measurement accuracy of the workpiece.

[0036] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A full-field video measuring machine characterized by: The system includes a base (14), a marble platform (5), a worktable (3), a Z-axis lifting seat (1), a lens assembly (2), and a light source assembly (15). The marble platform (5) is located on one side of the upper surface of the base (14). The worktable (3) is located on the upper surface of the marble platform (5). A column (9) is vertically installed on one side of the marble platform (5). A display (10) is fixedly installed on the side of the column (9). The Z-axis lifting seat (1) is installed on the column (9) and located above the worktable (3). The lens assembly (2) is installed on the Z-axis lifting seat (1) and moves up and down under the drive of the Z-axis lifting seat (1). The light source assembly (15) is installed below the lens assembly (2). An X-axis drive mechanism (23) and a Y-axis drive mechanism (24) are installed on two adjacent sides of the worktable (3) to drive the worktable (3) to move along the X-axis or Y-axis. Several handling handles (4) are installed on both sides of the marble platform (5). The X-axis drive mechanism (23) further includes a light rod (25), mounting plates respectively installed at both ends of the light rod (25), and a movable block (27) installed on the light rod (25) and moving along the axial direction of the light rod (25). The movable block (27) is located between the two mounting plates and is fixedly connected to the worktable (3) to drive the worktable (3) to move in the X-axis direction. The light rod (25) and the mounting plate are rotatably connected through a bearing seat. The movable block (27) has an inner cavity in which a first bearing (281), a second bearing (282) and a third bearing (283) are provided. The first bearing (281), the second bearing (282) and the third bearing (283) are sequentially mounted on the smooth rod (25). A wedge-shaped isolation block (29) is provided between each of the two adjacent bearings. A pressure plate (30) is fixed at each end of the movable block (27). The first bearing (281), the second bearing (282), and the third bearing (283) are all inclined. The inclination direction and inclination angle of the first bearing (281) and the third bearing (283) are the same. The inclination direction of the second bearing (282) is opposite to that of the first bearing (281) and the third bearing (283), and the inclination angle is the same. A threaded hole is opened on one side surface of the movable block (27). One end of an adjusting bolt (31) is screwed into the movable block (27) and presses against the second bearing (282). The other end of the adjusting bolt (31) extends out of the movable block (27) and is connected to an adjusting handle (32). The light source assembly (15) further includes a sleeve (36), a reflector (37), a ring light source (38), and a coaxial light source (39). The upper end of the sleeve (36) is connected to the lens assembly (2). The ring light source (38) is located at the lower end of the sleeve (36). The reflector (37) is installed at 45° inside the sleeve (36). The coaxial light source (39) is installed vertically in the middle of the sleeve (36). The light from the coaxial light source (39) is directed horizontally toward the reflector (37) and reflected by the reflector (37) and emitted vertically downwards.

2. The all-azimuth image measuring apparatus according to claim 1, characterized by: A rotating handwheel is connected to one end of the optical rod (25).

3. The omnidirectional image measuring instrument according to claim 1, characterized in that: One end of the optical rod (25) is connected to the output shaft of the motor via a coupling.

4. The omnidirectional image measuring instrument according to claim 1, characterized in that: The host (6) of the display (10) is placed under the base plate of the base (14), and the mouse (12) and keyboard (13) of the display (10) are placed on the upper surface of the base (14) and located on one side of the workbench (3).

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