An optical detection jig, positioning device, production system

Abstract

The utility model provides a kind of optical detection clamp, positioning device, production system, optical detection clamp includes: axle fixed seat, the upper surface of axle fixed seat is provided with arc support seat;Two-way tooth bar, the middle of two-way tooth bar is provided with two baffle, baffle is perpendicular to the axis of two-way tooth bar, arc support seat is connected between two baffle;Two clamping components, clamping component is separately set in the side of baffle away from another baffle, clamping component includes silk movable block and clamping block, silk movable block is provided with screw hole, two-way tooth bar is worn in screw hole, clamping block is connected on the upper surface of silk movable block by connecting piece, clamping block can move along two-way tooth bar linearly under the drive of silk movable block.According to the technical scheme of the embodiment, the relative position of the two-way tooth bar is fixed by the axle fixed seat, so that when the two-way tooth bar rotates axially, the two clamping blocks are driven by the two silk movable blocks to simultaneously approach the baffle, thereby clamping the special-shaped optical parts by the clamping blocks, and the structure of the optical detection clamp can be simplified.

Description

Technical Field

[0001] This utility model belongs to the field of optical inspection technology, and in particular relates to an optical inspection fixture, positioning device, and production system. Background Technology

[0002] With the rapid development of the optoelectronics industry, more and more non-standard, irregularly shaped optical components are emerging. In the optoelectronics industry, quality inspection of these irregularly shaped optical components is necessary.

[0003] Traditional quality inspection methods involve custom-designing inspection fixtures to match irregularly shaped optical components. These fixtures typically include components such as supports, piston rods, disc springs, sealing rings, pressure caps, pressure plates, pressure adjusting rods, return springs, clamping rods, clamping plate seats, clamping plates, workpieces, support rods, spherical washers, and oil inlets. Each component is manufactured through mold making or casting, and then all components are assembled to form the inspection fixture. The irregularly shaped optical components are then fixed in the fixture for testing. However, existing inspection fixtures suffer from high production costs, cumbersome assembly processes, and long production cycles due to their numerous components, failing to meet the needs for rapid reliability analysis of irregularly shaped optical components. Utility Model Content

[0004] This utility model provides an optical inspection fixture, a positioning device, and a production system. By simplifying the structure of the optical inspection fixture, it can reduce costs and shorten the production cycle, enabling rapid verification of the reliability analysis of irregularly shaped optical components.

[0005] In a first aspect, embodiments of the present invention provide an optical inspection fixture, comprising:

[0006] A shaft fixing seat, wherein an arc-shaped support seat is provided on the upper surface of the shaft fixing seat;

[0007] A bidirectional toothed bar, wherein two baffles are provided in the middle of the bidirectional toothed bar, the baffles are perpendicular to the axis of the bidirectional toothed bar, and the arc-shaped support seat is engaged between the two baffles;

[0008] Two clamping assemblies are respectively disposed on the side of the baffle away from the other baffle. Each clamping assembly includes a threaded block and a clamping block. The threaded block is provided with a screw hole, and the bidirectional toothed rod passes through the screw hole. The clamping block is connected to the upper surface of the threaded block through a connector. Under the drive of the threaded block, the clamping block can move linearly along the bidirectional toothed rod.

[0009] According to some embodiments of the present invention, there is a smooth surface between the two baffles, and the threads on both sides of the baffles are a first thread and a second thread, respectively, and the thread directions of the first thread and the second thread are opposite.

[0010] According to some embodiments of this utility model, it also includes:

[0011] Two handles are provided, each handle having a blind hole. The two ends of the bidirectional toothed rod are provided with prism segments. The cross-section of the blind hole is adapted to the cross-section of the prism segment, and the blind hole is engaged with the prism segment.

[0012] According to some embodiments of this utility model, it also includes:

[0013] A pad, wherein the shaft fixing seat is fixed to the upper surface of the pad, and the pad is provided with multiple mounting positions.

[0014] According to some embodiments of this utility model, it also includes:

[0015] A sliding seat is fixed to the pad. The sliding seat is provided with a mounting through hole and a sliding groove. The mounting through hole communicates with the sliding groove and is used to install the shaft fixing seat. The longitudinal section of the sliding groove is adapted to the longitudinal section of the moving block, and the moving block can slide in the sliding groove.

[0016] According to some embodiments of the present invention, a first guide rail is provided at the bottom of the sliding groove, the moving block is installed on the first guide rail, and the moving block can slide along the bidirectional lead screw via the guide rail.

[0017] According to some embodiments of this utility model, it also includes:

[0018] The ball screw includes a nut, which is fixed to the lower surface of the pad and to the second guide rail. The second guide rail is perpendicular to the first guide rail. Driven by the ball screw, the pad moves linearly along the second guide rail.

[0019] According to some embodiments of the present invention, the clamping block is provided with a V-shaped groove and a U-shaped groove on the side near the baffle.

[0020] Secondly, this utility model embodiment also provides a positioning device, including the optical detection fixture as described in the first aspect.

[0021] Thirdly, this utility model embodiment also provides a production system, including the optical inspection fixture as described in the first aspect, or the positioning device as described in the second aspect.

[0022] This utility model embodiment includes: a shaft fixing seat, the upper surface of which is provided with an arc-shaped support seat; a bidirectional toothed rod, the middle of which is provided with two baffles, the baffles being perpendicular to the axis of the bidirectional toothed rod, the arc-shaped support seat being engaged between the two baffles; and two clamping assemblies, each clamping assembly being disposed on the side of the baffles away from the other baffle, each clamping assembly including a threaded block and a clamping block, the threaded block being provided with a screw hole, the bidirectional toothed rod passing through the screw hole, the clamping block being connected to the upper surface of the threaded block through a connector, and the clamping block being able to move linearly along the bidirectional toothed rod under the drive of the threaded block. According to the technical solution of this embodiment, the relative position of the bidirectional tooth bar is fixed by the shaft fixing seat. When the bidirectional tooth bar rotates axially, the lead screw block connected to the bidirectional tooth bar moves linearly along the bidirectional tooth bar. The two lead screw blocks drive the two clamping blocks to simultaneously approach the baffle, thereby realizing the clamping blocks clamping irregular optical parts. The structure of the optical test fixture is simplified, which facilitates production and assembly. It can reduce the cost of manufacturing optical test fixtures, shorten the production cycle of optical test fixtures, and realize the rapid verification of the reliability analysis of irregular optical parts. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of an optical inspection fixture provided in one embodiment of the present invention;

[0024] Figure 2 This is a partial disassembly diagram of an optical inspection fixture provided in another embodiment of the present invention;

[0025] Figure 3 This is a cross-sectional schematic diagram of an optical inspection fixture provided in another embodiment of the present invention. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0027] It should be noted that although functional modules are divided in the device schematic diagram and a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart. Terms such as "first," "objective," etc., in the specification, claims, or the aforementioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0028] This utility model embodiment includes: a shaft fixing seat, the upper surface of which is provided with an arc-shaped support seat; a bidirectional toothed rod, the middle of which is provided with two baffles, the baffles being perpendicular to the axis of the bidirectional toothed rod, the arc-shaped support seat being engaged between the two baffles; and two clamping assemblies, each clamping assembly being disposed on the side of the baffles away from the other baffle, each clamping assembly including a threaded block and a clamping block, the threaded block being provided with a screw hole, the bidirectional toothed rod passing through the screw hole, the clamping block being connected to the upper surface of the threaded block through a connector, and the clamping block being able to move linearly along the bidirectional toothed rod under the drive of the threaded block. According to the technical solution of this embodiment, the relative position of the bidirectional tooth bar is fixed by the shaft fixing seat. When the bidirectional tooth bar rotates axially, the lead screw block connected to the bidirectional tooth bar moves linearly along the bidirectional tooth bar. The two lead screw blocks drive the two clamping blocks to simultaneously approach the baffle, thereby realizing the clamping blocks clamping irregular optical parts. The structure of the optical test fixture is simplified, which facilitates production and assembly. It can reduce the cost of manufacturing optical test fixtures, shorten the production cycle of optical test fixtures, and realize the rapid verification of the reliability analysis of irregular optical parts.

[0029] Reference Figure 1 and Figure 2 The optical inspection fixture provided in this embodiment includes:

[0030] Shaft fixing seat 10, the upper surface of shaft fixing seat 10 is provided with arc-shaped support seat;

[0031] The bidirectional toothed rod 20 has two baffles 21 in the middle, which are perpendicular to the axis of the bidirectional toothed rod 20. The arc-shaped support seat is engaged between the two baffles 21.

[0032] Two clamping assemblies 30 are respectively disposed on the side of the baffle 21 away from the other baffle 21. Each clamping assembly 30 includes a moving block 31 and a clamping block 32. The moving block 31 is provided with a screw hole 311, and the bidirectional toothed rod 20 passes through the screw hole 311. The clamping block 32 is connected to the upper surface of the moving block 31 through a connector. Under the drive of the moving block 31, the clamping block 32 can move linearly along the bidirectional toothed rod 20.

[0033] It should be noted that the arc-shaped support seat of the shaft fixing seat 10 abuts against the bidirectional toothed rod 20. The arc-shaped support seat provides stable support for the bidirectional toothed rod 20 during axial rotation and provides a limit for the bidirectional toothed rod 20 in a direction perpendicular to the bidirectional toothed rod 20, preventing relative displacement, tilting or shaking of the bidirectional toothed rod 20 during operation.

[0034] It should be noted that the bidirectional toothed rod 20 is connected to the threaded block 31 of the clamping assembly 30. The thread of the bidirectional toothed rod 20 is threadedly engaged with the threaded hole 311 of the threaded block 31 to achieve threaded transmission, thereby converting the axial rotational motion of the bidirectional toothed rod 20 into the linear movement of the threaded block 31. Under the drive of the threaded block 31, the clamping block 32 achieves linear movement along the direction of the bidirectional toothed rod 20.

[0035] It should be noted that the upper surface of the moving block 31 is provided with a boss, and the lower surface of the clamping block 32 is provided with a groove. When the clamping block 32 is connected to the moving block 31, the boss is fitted into the groove. The boss and the groove provide guidance for the movement of the clamping block 32, preventing deviation or rotation during the linear movement of the clamping block.

[0036] It should be noted that the motion accuracy of the bidirectional toothed rod 20 can be adaptively selected according to actual needs and the precision requirements of irregularly shaped optical parts.

[0037] It should be noted that the baffle 21 and the arc-shaped support together provide a limiting function for the bidirectional tooth bar 20 along the direction of the bidirectional tooth bar 20, preventing the bidirectional tooth bar 20 placed on the arc-shaped support from being displaced during axial rotation, thus preventing the axial rotation of the bidirectional tooth bar 20 from being effectively converted into the linear movement of the lead screw block 31.

[0038] It should be noted that the two lead blocks 31 connected to the bidirectional toothed rod 20 are synchronized. When the bidirectional toothed rod 20 rotates axially in the same direction, both lead blocks 31 move towards the arc-shaped support seat, or both move away from the arc-shaped support seat. The synchronization between the lead blocks 31 ensures that the clamping blocks 32 connected to the upper surface of the lead blocks 31 can move horizontally at the same speed and in a mirror direction, ensuring that the displacement of the two clamping blocks 32 is the same. The lead blocks 31 achieve horizontal position adjustment and horizontal displacement control of the clamping blocks 32 through the threaded engagement structure between the screw hole 311 and the bidirectional toothed rod 20.

[0039] It should be noted that before testing the irregularly shaped optical component to be tested, both drive the wire blocks 31 to move towards the arc-shaped support, so that the clamping blocks 32 connected to the upper surface of the wire blocks 31 move towards the arc-shaped support, thereby fixing the irregularly shaped optical component to be tested between the clamping blocks 32. After the irregularly shaped optical component to be tested is tested, both drive the wire blocks 31 to move away from the arc-shaped support, so that the clamping blocks 32 connected to the upper surface of the wire blocks 31 move away from the arc-shaped support, releasing the irregularly shaped optical component between the clamping blocks 32, making it easier to remove the irregularly shaped optical component.

[0040] It should be noted that the side of the clamping block 32 near the baffle 21 has an irregular edge. When the clamping block 32 clamps the irregularly shaped optical component to be tested, the irregular edge abuts against the irregularly shaped optical component. The irregular edge of the clamping block 32 can increase the contact area with the irregularly shaped optical component, making the number of force points on the irregularly shaped optical component more and the force points more evenly distributed. This makes the clamping force of the clamping block 32 on the irregularly shaped optical component more uniform, preventing the irregularly shaped optical component from being deformed or damaged due to excessive stress. The clamping block 32 can fix and position the irregularly shaped optical component, preventing the irregularly shaped optical component from sliding or rotating during the quality inspection process, which would lead to quality inspection failure.

[0041] It should be noted that the testing fixtures obtained by traditional methods have many parts, requiring each part to be individually molded and cast, resulting in high production costs. After obtaining all the parts, they are assembled, but the large number of parts makes the assembly process cumbersome and time-consuming. Furthermore, the pressure is adjusted only by the pressure adjustment rod in the testing fixture, resulting in low adjustment accuracy, which is not conducive to clamping irregularly shaped optical parts that require high precision and are easily damaged.

[0042] It should be noted that the optical inspection fixture of this application can clamp irregularly shaped optical parts to be tested. The optical inspection fixture has a simple structure and can be manufactured by CNC machine tools, resulting in low cost, high speed, and reduced assembly time. This application achieves the same clamping effect while simplifying the structure of the optical inspection fixture. In this application, by selecting the motion accuracy of the bidirectional toothed bar 20, the clamping force of the clamping block 32 on the irregularly shaped optical parts is adjusted, making it suitable for irregularly shaped optical parts with high precision requirements.

[0043] It should be noted that the optical inspection fixture of this application is suitable for optical vector centering analysis, such as fixing before vector centering analysis of satellite remote sensing lenses, lithography machine lenses, etc. The optical inspection fixture of this application can be a vector centering inspection fixture based on optical transmission measurement, a vector centering fixture based on reflection optical interferometry, or a vector centering fixture based on a contact displacement sensor.

[0044] It should be noted that, to obtain the irregularly shaped optical component to be tested, a suitable clamping block 32 and a bidirectional toothed rod 20 are obtained based on the shape of the irregularly shaped optical component; the bidirectional toothed rod 20 is driven to rotate axially to drive the wire moving block 31 to move along the bidirectional toothed rod 20 towards the baffle 21, and the wire moving block 31 drives the clamping block 32 to move along the bidirectional toothed rod 20 towards the baffle 21; the irregularly shaped optical component to be tested is placed between the two clamping blocks 32, and the bidirectional toothed rod 20 is driven to rotate axially again to make the clamping block 32 clamp the irregularly shaped optical component to be tested; the irregularly shaped optical component to be tested is detected by an optical vector detection system; after the detection is completed, the bidirectional toothed rod 20 is driven to rotate axially to drive the wire moving block 31 to move along the bidirectional toothed rod 20 away from the baffle 21, and the wire moving block 31 drives the clamping block 32 to move along the bidirectional toothed rod 20 away from the baffle 21, and the irregularly shaped optical component is removed.

[0045] Additionally, in one embodiment, reference is made to Figure 2 The area between the two baffles 21 is a smooth surface. The threads on both sides of the baffles 21 are the first thread and the second thread, respectively, and the threads of the first thread and the second thread are in opposite directions.

[0046] It should be noted that the baffles 21 are smooth surfaces, so that the contact surfaces between the bidirectional toothed rod 20 and the arc-shaped support are all smooth surfaces during the axial rotation of the bidirectional toothed rod 20, thereby reducing the friction between the arc-shaped support and the bidirectional toothed rod 20 and reducing the driving force required to drive the bidirectional toothed rod 20 to rotate.

[0047] It should be noted that, in order to ensure that the movement direction of the lead block 31 abutting against the bidirectional toothed rod 20 is mirrored when the bidirectional toothed rod 20 rotates axially, the thread directions on both sides of the baffle 21 are opposite. In the first thread and the second thread, one is a left-hand thread and the other is a right-hand thread.

[0048] It should be noted that the thread direction of the threaded block 31 that abuts against the first thread is the same as the thread direction of the first thread, and the thread direction of the threaded block 31 that abuts against the second thread is the same as the thread direction of the second thread, that is, the thread directions of the screw holes 311 of the two threaded blocks 31 are opposite.

[0049] Additionally, in one embodiment, reference is made to Figure 2 It also includes:

[0050] Two handles 40 are provided, each handle 40 is provided with a blind hole, and both ends of the bidirectional toothed rod 20 are provided with prism sections 22. The cross-section of the blind hole is adapted to the cross-section of the prism section 22, and the blind hole is snapped into the prism section 22.

[0051] It should be noted that the prism segment 22 can be a triangular prism or a quadrangular prism; prism segments 22 are set at both ends of the bidirectional toothed rod 20, and the blind hole of the handle 40 is engaged with the prism segment 22, so that the bidirectional toothed rod 20 can be driven to rotate by rotating the handle 40. The handle 40 provides a grip for the inspection personnel and drives the bidirectional toothed rod 20 to rotate, thereby driving the lead screw 31 to move linearly.

[0052] Additionally, in one embodiment, reference is made to Figure 1 It also includes:

[0053] The pad 50 and the shaft seat 10 are fixed to the upper surface of the pad 50. The pad 50 is provided with multiple mounting positions.

[0054] It should be noted that the optical inspection fixture of this application can be applied to various optical vector centering analyses. Multiple mounting positions are provided on the pad 50. After the optical inspection fixture is installed onto the optical equipment and machining table through the mounting positions and connectors, the optical inspection fixture is fixed to the worktable or other base. The mounting positions can be mounting holes or mounting slots.

[0055] It should be noted that the pad 50 can provide a buffer for the shaft mounting 10, reducing the direct impact of external vibration, impact or stress on the optical inspection fixture, thereby protecting the precision components such as irregularly shaped optical parts to be tested and avoiding damage.

[0056] Additionally, in one embodiment, reference is made to Figure 2 and Figure 3 It also includes:

[0057] The sliding seat 60 is fixed to the pad 50. The sliding seat 60 is provided with a mounting through hole and a sliding groove 61. The mounting through hole is connected to the sliding groove 61 and is used to install the shaft fixing seat 10. The longitudinal section of the sliding groove 61 is adapted to the longitudinal section of the moving block 31, and the moving block 31 can slide in the sliding groove 61.

[0058] It should be noted that by setting the sliding seat 60 on the pad 50, the pad 50 provides cushioning for the sliding seat 60.

[0059] It should be noted that the bottom of the shaft fixing seat 10 is a disc, and the upper surface of the disc is provided with an upwardly extending arc-shaped support. The cross-sectional area of ​​the arc-shaped support is smaller than that of the disc. To better install the shaft fixing seat 10, the mounting through holes include a first through hole and a second through hole, which are interconnected. The cross-section of the first through hole is adapted to the cross-section of the disc, and the cross-section of the second through hole is adapted to the cross-section of the arc-shaped support. Since the cross-sectional area of ​​the arc-shaped support is smaller than that of the disc, it can prevent the shaft fixing seat 10 from shifting during use, thereby ensuring the stability of the bidirectional tooth rod 20.

[0060] It should be noted that, preferably, the longitudinal section of the moving wire block 31 is polygonal; the longitudinal section of the sliding groove 61 is adapted to the longitudinal section of the moving wire block 31, so that when the moving wire block 31 moves linearly under the drive of the bidirectional toothed rod 20, the moving wire block 31 can only move in a straight line under the guidance of the sliding groove 61, and cannot rotate or deviate. The adaptation between the longitudinal section of the sliding groove 61 and the moving wire block 31 can effectively prevent the moving wire block 31 from spinning when moving linearly along the bidirectional toothed rod 20, thereby preventing the clamping block 32 connected to the moving wire block 31 from rotating, causing the clamping block 32 to be misaligned with the irregular optical part to be tested, and failing to achieve a stable clamping effect.

[0061] Additionally, in one embodiment, reference is made to Figure 2 The bottom of the sliding groove 61 is provided with a first guide rail, and the lead screw 31 is installed on the first guide rail. The lead screw 31 can slide along the bidirectional lead screw through the guide rail.

[0062] It should be noted that the sliding groove 61 provides a guide for the wire moving block 31. When the wire moving block 31 moves linearly under the drive of the bidirectional toothed rod 20, the wire moving block 31 can only move linearly along the direction of the guide rail. The first guide rail and the sliding groove 61 together guide the wire moving block 31 to ensure that the wire moving block 31 and the clamping block 32 connected to the wire moving block 31 move linearly in a fixed direction, so that the movement direction of the clamping block 32 is stable and accurate, and the clamping effect of the clamping block 32 on the irregular optical parts to be tested is better.

[0063] Additionally, in one embodiment, reference is made to Figure 1 It also includes:

[0064] The ball screw includes a nut, which is fixed to the lower surface of the pad 50 and to the second guide rail. The second guide rail is perpendicular to the first guide rail. Driven by the ball screw, the pad 50 moves linearly along the second guide rail.

[0065] It should be noted that by setting the ball screw and the second guide rail, together with the bidirectional toothed rod 20, the sliding groove 61 and the first guide rail, the horizontal displacement of the moving block 31 in the X-axis and Y-axis directions is realized, as well as the horizontal displacement of the clamping block 32 connected to the moving block 31 in the X-axis and Y-axis directions is realized.

[0066] Additionally, in one embodiment, reference is made to Figures 1 to 3 The clamping block 32 has a V-shaped groove and a U-shaped groove on the side near the baffle 21.

[0067] It should be noted that the V-groove and U-groove are designed to help the clamping block 32 automatically position the product when clamping the irregularly shaped optical parts to be tested, which facilitates automatic alignment and guidance, and improves clamping accuracy and efficiency.

[0068] It should be noted that the irregularly shaped optical component to be tested is placed between the clamping blocks 32, and the bidirectional toothed bar 20 is driven to rotate axially by the handle 40, so that the lead screw 31 slides on the first guide rail located in the sliding groove 61. The two lead screws 31 move linearly at the same speed in the direction close to the arc-shaped support. The lead screws 31 drive the clamping blocks 32 to move linearly, so as to clamp the irregularly shaped optical component to be tested by the clamping blocks 32. The V-shaped groove and U-shaped groove of the clamping blocks 32 can provide guidance when the clamping blocks 32 clamp the irregularly shaped optical component to be tested, and increase the contact area between the clamping blocks 32 and the irregularly shaped optical component to be tested, so as to prevent the stress on the irregularly shaped optical component to be tested from being too great. After the test is completed, the handle 40 drives the bidirectional tooth bar 20 to rotate axially in opposite directions, causing the two wire moving blocks 31 to move linearly at the same speed away from the arc-shaped support, driving the clamping block 32 to move linearly at the same speed away from the arc-shaped support, thereby releasing the clamping force of the clamping block 32 on the irregular optical parts.

[0069] The optical inspection fixture of this application enables the clamping and fixing of irregularly shaped optical components, simplifies the structure of the optical inspection fixture, reduces the number of parts in the optical inspection fixture, and enables the parts of the optical inspection fixture to be manufactured by CNC machine tools, thereby reducing the production cost and the required manufacturing time of the optical inspection fixture, and realizing the rapid verification of the reliability analysis of irregularly shaped optical components.

[0070] In one embodiment, the present invention also provides a positioning device, including the optical detection fixture described above.

[0071] It should be noted that the positioning device can be the optical inspection fixture itself, or other devices that use optical inspection fixtures, such as optical vector centering devices. This embodiment does not limit the specific type of positioning device, as long as the above-mentioned optical inspection fixture can be used.

[0072] In addition, this utility model embodiment also provides a production system, including the optical inspection fixture as described above, or including the positioning device as described above.

[0073] It should be noted that the production system can be the positioning device itself, such as an optical vector centering device, or other devices that use positioning devices, such as optical quality inspection production line equipment. This embodiment does not limit the specific type of production system, as long as the above-mentioned optical inspection fixture or the above-mentioned positioning device can be used.

[0074] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein.

[0075] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

[0076] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the above embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of the present utility model.

Claims

1. An optical detection fixture, characterized by, include: A shaft fixing seat, wherein an arc-shaped support seat is provided on the upper surface of the shaft fixing seat; A bidirectional toothed bar, wherein two baffles are provided in the middle of the bidirectional toothed bar, the baffles are perpendicular to the axis of the bidirectional toothed bar, and the arc-shaped support seat is engaged between the two baffles; Two clamping assemblies are respectively disposed on the side of the baffle away from the other baffle. Each clamping assembly includes a threaded block and a clamping block. The threaded block is provided with a screw hole, and the bidirectional toothed rod passes through the screw hole. The clamping block is connected to the upper surface of the threaded block through a connector. Under the drive of the threaded block, the clamping block can move linearly along the bidirectional toothed rod.

2. The optical detection fixture of claim 1, wherein, The area between the two baffles is a smooth surface, and the threads on both sides of the baffles are a first thread and a second thread, respectively, with the first thread and the second thread having opposite thread directions.

3. The optical detection fixture of claim 1, wherein, Also includes: Two handles are provided, each handle having a blind hole. The two ends of the bidirectional toothed rod are provided with prism segments. The cross-section of the blind hole is adapted to the cross-section of the prism segment, and the blind hole is engaged with the prism segment.

4. The optical inspection fixture according to claim 1, characterized in that, Also includes: A pad, wherein the shaft fixing seat is fixed to the upper surface of the pad, and the pad is provided with multiple mounting positions.

5. The optical detection fixture of claim 4, wherein, Also includes: A sliding seat is fixed to the pad. The sliding seat is provided with a mounting through hole and a sliding groove. The mounting through hole communicates with the sliding groove and is used to install the shaft fixing seat. The longitudinal section of the sliding groove is adapted to the longitudinal section of the moving block, and the moving block can slide in the sliding groove.

6. The optical detection fixture of claim 5, wherein, The bottom of the sliding groove is provided with a first guide rail, the threaded block is installed on the first guide rail, and the threaded block can slide along the bidirectional tooth bar through the guide rail.

7. The optical detection fixture of claim 6, wherein, Also includes: The ball screw includes a nut, which is fixed to the lower surface of the pad and to the second guide rail. The second guide rail is perpendicular to the first guide rail. Driven by the ball screw, the pad moves linearly along the second guide rail.

8. The optical detection fixture of claim 1, wherein, The clamping block has a V-shaped groove and a U-shaped groove on the side near the baffle.

9. A positioning device, characterized by: Includes the optical inspection fixture as described in any one of claims 1 to 8.

10. A production system characterized by: It includes the optical inspection fixture as described in any one of claims 1 to 8, or the positioning device as described in claim 9.

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