Light cone inspection jig

Abstract

The utility model belongs to the technical field of light cone inspection, and particularly relates to a light cone inspection jig which comprises a positioning plate, an inspection plate and a guide assembly, a positioning hole is formed in the upper side of the positioning plate, and the positioning hole is used for being connected with the lower end of a light cone in a clamped mode; the inspection plate is arranged on the upper side of the positioning plate and is parallel to the positioning plate, an inspection hole is formed in the inspection plate, and the inspection hole directly faces the positioning hole; the guide assembly comprises a guide column and an elastic piece, the lower end of the guide column is connected with the positioning plate, the upper end is slidably connected with the inspection plate, and the elastic piece is arranged between the positioning plate and the inspection plate and sleeves the guide column. During operation, the distance between the positioning plate and the inspection plate is adjusted to adapt to the height of the light cone, the lower end of the light cone to be inspected is clamped in the positioning hole, the position of the positioning plate is kept stable, then the inspection plate is pressed down to the head position of the light cone, and the inspection hole is compared with the head size of the light cone. The optical cones with obvious size differences can be quickly found out from batch to-be-inspected optical cones, the operation is simple, and the inspection efficiency is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of light cone inspection, and in particular relates to a light cone inspection fixture. Background Art

[0002] As an important optical component, the dimensional accuracy of the light cone will directly affect the performance of the optical system. Due to the differences between light cone suppliers, the consistency of different batches of products has obvious differences, and this difference mainly comes from the head of the light cone. Therefore, consistency dimensional inspection is required for incoming materials.

[0003] Traditional light cone size inspection methods often have many problems such as complex operation, low efficiency, and high cost. For example, the physical inspection method can be measured using tools such as pin gauges and calipers. First, the workpiece needs to be placed on a stable support, and then the pin gauge or caliper is used to measure at two opposite points of the cone hole to obtain two distance values. Another example is the optical measurement method: it refers to the use of optical instruments for measurement, such as magnifying glasses, theodolites, projectors, etc.

[0004] The above two inspection methods have relatively cumbersome procedures and complex operations during the inspection process, resulting in a large amount of data comparison, and are suitable for a small number of light cone inspections. However, for batch light cone inspections, the inspection efficiency will be greatly reduced when the above inspection methods are used, affecting the work progress. Summary of the invention

[0005] In order to solve the problems existing in the prior art, the purpose of the utility model is to provide a light cone inspection jig, which is convenient for inspection of batch light cone consistency and has higher inspection efficiency.

[0006] The technical solution of the utility model is:

[0007] A light cone inspection fixture, comprising:

[0008] A positioning plate, the upper side of which is provided with a positioning hole, the positioning hole being used for clamping with the lower end of the light cone;

[0009] An inspection plate is arranged on the upper side of the positioning plate and the two are parallel, and an inspection hole is opened on the inspection plate, and the inspection hole is directly opposite to the positioning hole;

[0010] The guide assembly comprises a guide column and an elastic member, wherein the lower end of the guide column is connected to the positioning plate, and the upper end is slidably connected to the inspection plate, and the elastic member is placed between the positioning plate and the inspection plate and sleeved on the guide column.

[0011] Preferably, the guide assembly further comprises:

[0012] A lower plate, a side wall of which is provided with a first mounting hole, the positioning plate is placed in the first mounting hole and the two are detachably connected via a first fixing assembly, and the lower end of the guide column is fixedly connected to the lower plate;

[0013] The upper plate has a second mounting hole on its side wall, the inspection plate is placed in the second mounting hole and the two are detachably connected via a second fixing assembly, the upper end of the guide column is inserted through the upper plate, and the elastic member is placed between the upper plate and the lower plate.

[0014] Preferably, the guide posts are cylindrical bodies, and there are at least two of them, and the two guide posts are arranged in parallel.

[0015] Preferably, the guide column is a polygonal column.

[0016] Preferably, both upper and lower ends of the guide column are provided with adjustment rings, one of the adjustment rings is placed at the lower end of the elastic member, and the other adjustment ring is placed on the upper side of the upper plate, and the side wall of the adjustment ring is screwed with a bolt, which passes through the adjustment ring and abuts against the guide column.

[0017] Preferably, an alignment component is also provided between the first mounting hole and the second mounting hole, and the alignment component includes two cylindrical pins of the same structure, the two cylindrical pins are parallel, the lower ends of the cylindrical pins are inserted in the gap between the positioning plate and the side wall of the first mounting hole, and the upper ends are inserted in the gap between the inspection plate and the side wall of the second mounting hole, and the two cylindrical pins are located at two adjacent side walls of the first mounting hole or the second mounting hole.

[0018] Preferably, the elastic member is a spring, and the spring is sleeved on the guide column. The lower end of the spring abuts against the adjustment ring, and the upper end of the spring abuts against the upper plate.

[0019] Preferably, a protective pad is attached to the side of the inspection hole.

[0020] Compared with the prior art, the light cone inspection fixture of the utility model has the following beneficial effects:

[0021] When the device is in use, the spacing between the positioning plate and the inspection plate is adjusted to adapt to the height of the light cone, and then the lower end of the light cone to be inspected is clamped in the positioning hole, the position of the positioning plate is kept stable, and then the inspection plate is pressed down to the position of the head of the light cone. By comparing the size of the inspection hole with the head of the light cone, that is, observing the alignment of the size of the head of the light cone with the inspection hole on the inspection plate, the light cone with obvious size difference can be quickly found from the batch of light cones to be inspected. The operation is simple and the inspection efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional diagram of the overall structure in an embodiment of the utility model;

[0023] Figure 2 This is a front view of the overall structure in the embodiment of the utility model;

[0024] Figure 3 This is a diagram of the light cone inspection method in the embodiment of the utility model;

[0025] Figure 4 A top view of the inspection board in the embodiment of the utility model;

[0026] Figure 5 It is a structural schematic diagram of the inspection board in the embodiment of the utility model.

[0027] Description of reference numerals:

[0028] 1. Light cone; 2. Positioning plate; 3. Positioning hole; 4. Inspection plate; 5. Inspection hole; 6. Guide column; 7. Elastic member; 8. Lower plate; 9. First mounting hole; 10. Upper plate; 11. Second mounting hole; 12. Adjusting ring; 13. Cylindrical pin; 14. Protective pad. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0030] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0031] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] See also Figures 1 to 4 As shown, in order to be able to conduct consistency inspection of light cones 1 in batches, improve inspection efficiency, and speed up work progress. This embodiment provides a universal optical light cone 1 inspection fixture, including a positioning plate 2, an inspection plate 4, and a guide assembly. The upper side of the positioning plate 2 is provided with a positioning hole 3, and the positioning hole 3 is used to engage with the lower end of the light cone 1; the inspection plate 4 is arranged on the upper side of the positioning plate 2 and the two are parallel, and the inspection plate 4 is provided with an inspection hole 5, and the inspection hole 5 is directly opposite to the positioning hole 3; the guide assembly includes a guide column 6 and an elastic member 7, the lower end of the guide column 6 is connected to the positioning plate 2, and the upper end is slidably connected to the inspection plate 4, and the elastic member 7 is placed between the positioning plate 2 and the inspection plate 4 and is sleeved on the guide column 6.

[0033] Specifically, when in use, the distance between the positioning plate 2 and the inspection plate 4 is adjusted to adapt to the height of the light cone 1, and then the lower end of the light cone 1 to be inspected is clamped in the positioning hole 3, the position of the positioning plate 2 is kept stable, and then the inspection plate 4 is pressed down to reach the head position of the light cone 1. By comparing the size of the inspection hole 5 with the head of the light cone 1, the light cone 1 with obvious size difference can be quickly found from the batch of light cones 1 to be inspected. The operation is simple and the inspection efficiency is high.

[0034] See also Figure 1 As shown, further, in order to ensure that the inspection hole 5 can maintain a stable position with the positioning hole 3 when moving, the guide column 6 can be set as a cylindrical column or a polygonal column. When the guide column 6 is a cylindrical column, at least two are required, and the two guide columns 6 are set in parallel. When the guide column 6 is a polygonal column, one or more can be used. Preferably, when a polygonal column is used, a column with a cross-section of no more than 8 edges is preferably used. Preferably, the guide column 6 is made of stainless steel, which is wear-resistant, polishable, and corrosion-resistant, and can be used for long-term use.

[0035] See also Figure 1 and Figure 2 As shown, further, in order to facilitate the rapid reset of the inspection plate 4 after detection, the elastic member 7 is a spring, which is sleeved on the guide column 6, and the lower end of the spring abuts against the adjustment ring 12, and the upper end abuts against the upper plate 10. The elastic reset of the spring can quickly reset the inspection plate 4 after the pressing is completed, so as to facilitate the detection of the next light cone 1.

[0036] See also Figure 5 As shown, due to the high hardness and strong brittleness of the light cone 1 product, it is easy to cause bumps and scratches. In order to protect the light cone 1 from damage after it contacts the inspection plate 4, a protective pad 14 is pasted on the side of the inspection hole 5 of the inspection plate 4. The material of the protective pad 14 is PEEK (high temperature resistant thermoplastic plastic). The PEEK material mainly exhibits high mechanical strength, high temperature resistance, impact resistance, flame retardancy, acid and alkali resistance, hydrolysis resistance, wear resistance, fatigue resistance, radiation resistance and good electrical properties. As a test tool, it is very important to avoid strong collisions, wear resistance, fatigue resistance and other properties. In addition, the inspection plate 4 and the positioning plate 2 can also be directly made of PEEK material.

[0037] See also Figure 1 and Figure 3As shown, in order to facilitate the inspection of light cones 1 for different batches, the guide assembly also includes a lower plate 8 and an upper plate 10. A first mounting hole 9 is provided on the side wall of the lower plate 8, the positioning plate 2 is placed in the first mounting hole 9 and the two are detachably connected by a first fixing assembly, and the lower end of the guide column 6 is fixedly connected to the lower plate 8; a second mounting hole 11 is provided on the side wall of the upper plate 10, the second mounting hole 11 is directly opposite to the first mounting hole 9, the inspection plate 4 is placed in the second mounting hole 11 and the two are detachably connected by a second fixing assembly, the upper end of the guide column 6 is inserted through the upper plate 10, and the elastic member 7 is placed between the upper plate 10 and the lower plate 8. When in use, through the settings on the upper plate 10 and the lower plate 8, the positioning plate 2 and the inspection plate 4 can be replaced according to the models of light cones 1 of different batches, and then the positioning plate 2 and the inspection plate 4 of the corresponding models are installed in the first mounting hole 9 and the second mounting hole 11 through the first fixing assembly and the second fixing assembly, so as to realize the inspection, which is convenient and quick. The upper plate 10 is preferably made of aluminum alloy, which has low density, good mechanical properties, and good processing performance. It will not cause obvious deformation when pressed, and will not affect the inspection. At the same time, due to its low density, it is light and can be operated by one hand and one person. The lower plate 8 is made of bakelite, which has high mechanical strength, good insulation, heat resistance, corrosion resistance, and low cost. Stainless steel and alloy materials can also be used for this component.

[0038] In order to facilitate the rapid replacement and installation of the positioning plate 2, the first fixing component includes screws and multiple screw holes opened on the lower plate 8. The multiple screw holes are evenly arranged. The positioning plate 2 and the lower plate 8 are screwed together. At the same time, the positioning plate 2 and the inspection plate 4 need to be adjusted, and then the screws are tightened. The preferred screws are M3 type. While the positioning plate 2 is fixed to the lower plate 8, the inspection plate 4 and the upper plate 10 are also fixed by the second fixing component. Preferably, the second fixing component has the same structure as the first fixing component. Before positioning, a cylindrical pin 13 is used for alignment to achieve consistency between the inspection plate 4 and the positioning plate 2 in the Z-axis direction, so as to meet the requirements of the straightness and dimensional compliance of the inspection light cone. After the inspection plate 4 and the positioning plate 2 are aligned, the screw combination of the positioning plate 2 and the lower plate 8 is tightened, and the inspection plate 4 and the upper plate 10 in the second fixing component are also screwed, and then the cylindrical pin 13 is removed.

[0039] See also Figure 3As shown, in order to quickly align the positioning plate 2 and the inspection plate 4 during the installation and removal process. An alignment component is also provided between the first mounting hole 9 and the second mounting hole 11, and the alignment component includes two cylindrical pins 13 of the same structure, the two cylindrical pins 13 are parallel, the lower end of the cylindrical pin 13 is inserted in the gap between the positioning plate 2 and the side wall of the first mounting hole 9, and the upper end is inserted in the gap between the inspection plate 4 and the side wall of the second mounting hole 11, and the two cylindrical pins 13 are located at the two adjacent side walls of the first mounting hole 9 or the second mounting hole 11. When in use, when the positioning plate 2 and the inspection plate 4 are installed, the positioning plate 2 and the inspection plate 4 can be aligned by the limiting effect of the two cylindrical pins 13, and then fixed. After the fixed alignment is completed, it is disassembled, and it only participates in the alignment effect during the assembly of the inspection plate 4 and the positioning plate 2, and does not participate in the positioning function during the operation. It is preferred that the cylindrical pin 13 is made of stainless steel. Since the cylindrical pin 13 is aligned up and down many times, the use of wear-resistant and non-bending stainless steel materials can extend the service life.

[0040] See also Figure 1 and Figure 2 As shown, further, in order to adapt to the detection of light cones 1 of different models. Adjustment rings 12 are installed on both ends of the guide column 6, one of which is placed at the lower end of the elastic member 7, and the other is placed on the upper side of the upper plate 10. The side wall of the adjustment ring 12 is screwed with bolts, and the bolts pass through the adjustment ring 12 and abut against the guide column 6. When in use, the height of the upper plate 10 can be adjusted by the two adjustment rings 12, and specifically the spacing between the positioning plate 2 and the inspection plate 4 can be adjusted, so as to adapt to the height of light cones 1 of different models. It is preferred that the adjustment ring 12 is made of stainless steel, and the adjustment ring 12 needs to be threaded, and the thread processed by stainless steel has better durability.

[0041] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A light cone inspection fixture, characterized in that: include: A positioning plate (2) having a positioning hole (3) formed on its upper side, the positioning hole (3) being used for clamping with the lower end of the light cone (1); An inspection plate (4) is arranged on the upper side of the positioning plate (2) and the two are parallel, and an inspection hole (5) is opened on the inspection plate (4), and the inspection hole (5) is directly opposite to the positioning hole (3); The guide assembly comprises a guide column (6) and an elastic member (7), wherein the lower end of the guide column (6) is connected to the positioning plate (2), and the upper end is slidably connected to the inspection plate (4), and the elastic member (7) is placed between the positioning plate (2) and the inspection plate (4) and is sleeved on the guide column (6).

2. A light cone inspection fixture according to claim 1, characterized in that: The guide assembly also includes: A lower plate (8) has a first mounting hole (9) on its side wall, the positioning plate (2) is placed in the first mounting hole (9) and the two are detachably connected via a first fixing assembly, and the lower end of the guide column (6) is fixedly connected to the lower plate (8); The upper plate (10) has a second mounting hole (11) on its side wall, the inspection plate (4) is placed in the second mounting hole (11) and the two are detachably connected via a second fixing assembly, the upper end of the guide column (6) is inserted through the upper plate (10), and the elastic member (7) is placed between the upper plate (10) and the lower plate (8).

3. The light cone inspection fixture according to claim 1, characterized in that: The guide posts (6) are cylindrical bodies, and there are at least two of them. The two guide posts (6) are arranged in parallel.

4. The light cone inspection fixture according to claim 1, characterized in that: The guide column (6) is a polygonal column.

5. The light cone inspection fixture according to claim 2, characterized in that: The upper and lower ends of the guide column (6) are both provided with adjustment rings (12), one of the adjustment rings (12) is placed at the lower end of the elastic member (7), and the other adjustment ring (12) is placed on the upper side of the upper plate (10), and the side wall of the adjustment ring (12) is screwed with a bolt, which passes through the adjustment ring (12) and abuts against the guide column (6).

6. The light cone inspection fixture according to claim 2, characterized in that: An alignment component is also provided between the first mounting hole (9) and the second mounting hole (11), and the alignment component comprises two cylindrical pins (13) of identical structure, the two cylindrical pins (13) are parallel, the lower ends of the cylindrical pins (13) are inserted into the gap between the positioning plate (2) and the side wall of the first mounting hole (9), and the upper ends are inserted into the gap between the inspection plate (4) and the side wall of the second mounting hole (11), and the two cylindrical pins (13) are located at two adjacent side walls of the first mounting hole (9) or the second mounting hole (11).

7. The light cone inspection fixture according to claim 5, characterized in that: The elastic member (7) is a spring, which is sleeved on the guide column (6), the lower end of the spring abuts against the adjustment ring (12), and the upper end of the spring abuts against the upper plate (10).

8. The light cone inspection fixture according to claim 1, characterized in that: A protection pad (14) is pasted on the side of the inspection hole (5).

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