A mechanism for automatically detecting the profile of a pin
By designing a mechanism for automatically detecting the shape of needles, and utilizing the 45° angle between the jig acupoints and the CCD component, combined with the positioning boss and guide arc surface, the problem of needle obstruction is solved, and efficient and accurate needle detection is achieved.
Patent Information
- Application Number
- CN202520938858.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-13
- Publication Date
- 2026-06-09
- Estimated Expiration
- 2035-05-13
AI Technical Summary
In the electronics industry, when pins are thin, long, have a small cross-sectional area, and are densely packed, they can easily block each other, affecting the accuracy and reliability of the test.
Design an automatic needle pin shape detection mechanism, including a CCD component, a product fixture platform, a bottom needle pin fixture, a product clamping component, and a lifting component. The fixture forms a 45° angle with the CCD component through acupoints, and uses a positioning boss and a guide arc surface for positioning and guidance. Combined with the vertical movement of the lifting component, the needle pin enters the needle pin hole and enters the detection range of the CCD component.
It improves the accuracy and efficiency of pin detection, reduces pin occlusion, and ensures the accuracy and stability of detection results.
Smart Images
Figure CN224340887U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automated pin detection technology, and more specifically, to a mechanism for automatically detecting the shape of pins. Background Technology
[0002] In the electronics industry, automated pin profiling technology is widely used for pin inspection of electronic components such as IC chips, connectors, and sockets. This technology enables rapid and accurate inspection of pin size, newness, and integrity, ensuring the quality and reliability of electronic components.
[0003] In existing technologies, due to the characteristics of slender pins and small cross-sectional area, when the number of pins increases and they are arranged densely, problems such as pins overlapping and obstructing each other may lead to unclear images, which will affect the accuracy and reliability of the detection. Utility Model Content
[0004] The technical problem to be solved by this invention is that the pins block each other. In view of the above-mentioned defects of the prior art, an automatic pin shape detection mechanism is provided.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] A mechanism for automatically detecting the shape of pins includes a CCD component, a product fixture platform, a bottom pin fixture, a product clamping component, and a lifting component.
[0007] The CCD component is used for optical inspection of the pin shape of the product;
[0008] The product fixture platform has fixture acupoints on its surface. The fixture acupoints are through holes, and the upper diameter of the fixture acupoints is smaller than the outer diameter of the product to be tested. The fixture acupoints are used to align the placement direction of the product to be tested with the detection direction of the CCD component.
[0009] The bottom needle fixture is located below the product fixture platform and can be pushed out from the fixture acupoint; the surface of the bottom needle fixture is provided with a needle hole array to effectively verify whether the needle array on the product is compliant.
[0010] The product clamping assembly is used to clamp and position the product on the acupoint of the jig;
[0011] The lifting assembly is used to drive the bottom pin fixture to move vertically.
[0012] By adopting the above technical solution, in the process of inspecting the product pins, the product is first placed on the product fixture platform; then the product is clamped and positioned by the product clamping component, and after the product is positioned, its pin position is pre-positioned above the pin hole of the bottom pin fixture; after the product clamping component retracts, the bottom pin fixture is driven to rise to support the product by the lifting component, at which point the pins will enter the pin hole; then the bottom pin fixture is raised further, raising the product pins and the product detection surface to the detection range of the CCD component for inspection.
[0013] This solution sets the rotation of the fixture at an angle to the detection direction of the CCD component, allowing the CCD component to clearly capture all the pins of the product during the detection process. This reduces the obstruction between pins, resulting in more accurate detection results and greatly improving detection efficiency.
[0014] Preferably, the acupoint of the jig is provided with a positioning boss, the shape of which corresponds to the shape of the product and is used to position the product.
[0015] By adopting the above technical solution, the positioning boss can effectively lock and position the product before testing, thus reducing the possibility of product displacement.
[0016] Preferably, the placement angle of the product to be tested on the acupoint of the treatment tool is at a 45° angle to the detection direction of the CCD component.
[0017] Preferably, the pin hole has a guide arc surface at the opening end near the product.
[0018] By adopting the above technical solution, the guide arc surface can guide the product pins, making it easier for the product pins to enter the pin holes, while also reducing wear on the product pins.
[0019] Preferably, the depth of the pin hole is less than the length of the product pin, and there is a detection gap between the bottom pin fixture and the product sidewall.
[0020] By adopting the above technical solution, if a pin of the product is deformed or exceeds the standard hole diameter on the bottom pin fixture, the product cannot be accurately inserted into the pin hole and will tilt. Therefore, the fit between the product pin detection reference surface and the bottom pin fixture surface or the gap difference formed between the two surfaces will be different, so as to more intuitively detect whether the position and wire diameter of the pin are qualified.
[0021] Preferably, the product clamping assembly includes a left clamping member and a right clamping member, both of which include clamping plates. The sidewalls of the clamping plates that contact the product are coated with adhesive, and the sidewalls of the clamping plates are configured to correspond to the shape of the product.
[0022] By adopting the above technical solution, the rubber coating treatment of the clamping plate can effectively reduce frictional damage to the product surface, while also increasing the friction with the product surface, making the clamping and positioning process of the product more accurate and efficient, and reducing product shaking.
[0023] Preferably, the side wall of the clamping plate is provided with a receiving part, and the receiving part is provided with a positioning recess, which is used to support the bottom of the product.
[0024] By adopting the above technical solution, the receiving part and the positioning recess can effectively support the bottom of the product, making the product more stable and the positioning more accurate during the positioning process.
[0025] Preferably, the CCD component includes a CCD image sensor and a CCD motion module. The CCD image sensor is used to acquire image data of the pins and reference surface, and the CCD motion module is used to drive the CCD image sensor to move within the detection area. The CCD motion module is a multi-axis linkage mechanism to achieve precise positioning of the CCD image sensor in three-dimensional space.
[0026] By adopting the above technical solution, the CCD image sensor can be moved and positioned more accurately and effectively, making the CCD image sensor more precise in capturing and detecting pins.
[0027] Preferably, the bottom needle fixture and the acupoints are provided with multiple sets, and the multiple sets of bottom needle fixtures are respectively provided with multiple sets of lifting components. The lifting component includes a stabilizing plate and a lifting slide rail. The cross-section of the stabilizing plate is L-shaped. The short plate of the stabilizing plate is connected to the bottom needle fixture, and the long plate of the stabilizing plate is slidably connected to the lifting slide rail. The end of the long plate of the stabilizing plate abuts against the lifting plate. The lifting plate is driven to rise and fall by a driving cylinder.
[0028] By adopting the above technical solution, during the process of raising and lowering the bottom pin fixture, the driving cylinder drives the lifting plate to rise and fall. The lifting plate abuts against the end of the stabilizing plate and pushes the stabilizing plate. The stabilizing plate slides on the slide rail, pushing the bottom pin fixture to rise stably, so that the pin hole can be stably positioned with the product pin.
[0029] The beneficial effects of this utility model are as follows:
[0030] 1. This application utilizes a fixture cavity at a 45° angle to the CCD component. During the detection of product pins, the product is first placed on the product fixture platform. Then, the product is clamped and positioned by a product clamping component, ensuring that the pins are positioned above the pin holes of the bottom pin fixture. After the product clamping component retracts, the bottom pin fixture is driven upward by a lifting component to support the product, at which point the pins enter the pin holes. The bottom pin fixture is then raised further, elevating the product pins and the product detection surface to the detection range of the CCD component for detection. This solution, by rotating the fixture cavity to form a 45° angle with the detection direction of the CCD component, allows the CCD component to clearly capture all the product pins during detection, reducing pin occlusion and resulting in more accurate detection results and significantly improved detection efficiency.
[0031] 2. By setting a positioning boss and a guide arc surface, this application can effectively lock and position the product before testing, thus reducing the possibility of product displacement; the guide arc surface can guide the product pins, making it easier for the product pins to enter the pin holes, while also reducing wear on the product pins.
[0032] 3. By setting the depth of the pin hole to be less than the length of the product pin, if a pin of the product is deformed or exceeds the standard hole diameter on the bottom pin fixture, the product cannot be accurately inserted into the pin hole and will tilt. Therefore, the fit between the detection reference surface of the product pin and the surface of the bottom pin fixture or the gap difference formed between the two surfaces will be different, so as to more intuitively detect whether the position and wire diameter of the pin are qualified. Attached Figure Description
[0033] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0034] Fig. 1 This is a schematic diagram of the overall structure of the mechanism for automatically detecting the shape of pins according to an embodiment of this application.
[0035] Fig. 2 This is a schematic diagram of the bottom pin fixture in the embodiment itself.
[0036] Fig. 3 This is a schematic diagram of the structure of the bottom pin fixture and the product pins in an embodiment of this application.
[0037] Fig. 4 This is a schematic diagram of the lifting assembly in an embodiment of this application.
[0038] Explanation of reference numerals in the attached drawings: 1. CCD component; 11. CCD image sensor; 12. CCD moving module; 2. Product fixture platform; 21. Fixture acupoint; 22. Positioning boss; 3. Bottom pin fixture; 31. Pin hole; 32. Guide arc surface; 4. Product clamping assembly; 41. Left clamping component; 42. Right clamping component; 43. Clamping plate; 44. Receiving part; 45. Positioning recess; 5. Lifting assembly; 51. Stabilizing plate; 52. Lifting slide rail; 53. Lifting plate; 54. Drive cylinder. Detailed Implementation
[0039] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of this utility model. Obviously, the described embodiments are some, but not all, embodiments of this utility model. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0040] The preferred embodiment of this utility model is as follows: Figs. 1 to 4 As shown, an automatic detection mechanism for pin shape includes a CCD component 1, a product fixture platform 2, a bottom pin fixture 3, a product clamping component 4, and a lifting component 5.
[0041] CCD component 1 is used for multi-angle optical inspection of the pin shape of the product and the flatness of the inspection reference surface between the product and the pin. CCD component 1 includes CCD image sensor 11 and CCD moving module 12. CCD image sensor 11 is used to acquire image data of the pin and the reference surface. CCD moving module 12 is used to drive CCD image sensor 11 to move within the inspection area. CCD moving module 12 is a multi-axis linkage mechanism to realize the precise positioning of CCD image sensor 11 in three-dimensional space.
[0042] It can more accurately and effectively move and position the CCD image sensor 11, making the CCD image sensor 11 more precise in capturing and detecting pins.
[0043] The product fixture platform 2 has multiple fixture slots 21 on its surface. In this optional embodiment, four fixture slots 21 are provided. The product on the fixture slot 21 forms a 45° angle with the detection direction of the CCD component 1. The fixture slots 21 are through holes, and the upper port diameter of the fixture slot 21 is smaller than the outer diameter of the product to be tested. Positioning bosses 22 are provided on the fixture slots 21, and the shape of the positioning bosses 22 corresponds to the shape of the product to be tested, used for positioning the product. Before testing, the positioning bosses 22 can effectively engage and position the product, minimizing product displacement.
[0044] The bottom needle fixture 3 is located below the product fixture platform 2 and can move vertically within the fixture acupoints 21. Its surface is provided with an array of needle holes 31 to verify the compliance of the needle array on the product. The bottom needle fixture 3 has multiple sets corresponding to multiple fixture acupoints 21, and the opening end of the needle hole 31 near the product is provided with a guide arc surface 32. The guide arc surface 32 can guide the product needles, making it easier for the product needles to enter the needle hole 31, while also reducing wear on the product needles.
[0045] The depth of the pin hole 31 is less than the length of the product pin, and there is a detection gap between the bottom pin fixture 3 and the side wall of the product.
[0046] If a pin of the product is deformed or exceeds the standard hole diameter on the bottom pin fixture 3, the product cannot be accurately inserted into the pin hole 31 and will tilt. Therefore, the fit between the product pin detection reference surface and the surface of the bottom pin fixture 3 or the gap difference formed between the two surfaces will be different, so as to more intuitively detect whether the position and wire diameter of the pin are qualified.
[0047] Product clamping assembly 4 is used for non-destructive clamping and positioning of the product. Product clamping assembly 4 includes a left clamping member 41 and a right clamping member 42. Both the left clamping member 41 and the right clamping member 42 include clamping plates 43. The sidewalls of the clamping plates 43 that contact the product are coated with rubber, and the sidewalls of the clamping plates 43 correspond to the shape of the product. A receiving portion 44 is provided on the sidewall of the clamping plates 43, and a positioning recess 45 is provided on the receiving portion 44 to support the bottom of the product.
[0048] Applying a rubber coating to the clamping plate 43 effectively reduces frictional damage to the product surface while increasing friction with the product surface, making the clamping and positioning process more accurate and efficient, and reducing product wobbling. The receiving part 44 and the positioning recess 45 effectively support the bottom of the product, making the product more stable and the positioning more accurate during the positioning process.
[0049] The lifting assembly 5 is used to drive the bottom pin fixture 3 to move vertically. Multiple sets of bottom pin fixtures 3 are respectively provided with multiple sets of lifting assemblies 5. The lifting assembly 5 includes a stabilizing plate 51 and a lifting slide rail 52. The cross-section of the stabilizing plate 51 is L-shaped. The short plate of the stabilizing plate 51 is connected to the bottom pin fixture 3, and the long plate of the stabilizing plate 51 is slidably connected to the lifting slide rail 52. The end of the long plate of the stabilizing plate 51 abuts against the lifting plate 53. The lifting plate 53 is driven to move up and down by a driving cylinder 54.
[0050] During the lifting and lowering process of the bottom pin fixture 3, the drive cylinder 54 drives the lifting plate 53 to lift and lower. The lifting plate 53 abuts against the end of the stabilizing plate 51 and pushes the stabilizing plate 51. The stabilizing plate 51 slides on the slide rail, pushing the bottom pin fixture 3 to rise steadily, so that the pin hole 31 can be stably positioned with the product pin.
[0051] During the product pin inspection process, the product is first placed on the product fixture platform 2; then the product is clamped and positioned by the product clamping component 4, and after the product is positioned, its pin position is pre-positioned above the pin hole 31 of the bottom pin fixture 3; after the product clamping component 4 retracts, the bottom pin fixture 3 is driven to rise by the lifting component 5 to support the product, at which point the pin will enter the pin hole 31; then the bottom pin fixture 3 is raised further to raise the product pin and the product detection surface to the detection range of the CCD component 1 for inspection.
[0052] This solution rotates the acupoint 21 of the fixture to form a 45° angle with the detection direction of the CCD component 1, so that the CCD component 1 can clearly capture all the pins of the product during the detection process, reducing the obstruction between pins, making the detection results more accurate, and greatly improving the detection efficiency.
[0053] The implementation principle of the automatic pin shape detection mechanism in this application embodiment is as follows: by designing an automatic pin shape detection mechanism integrating a CCD component 1, a product fixture platform 2, a bottom pin fixture 3, a product clamping component 4, and a lifting component 5, the automatic detection of the pin shape of the product is achieved. This mechanism uses the fixture acupoint 21 to fix the product to be tested at a 45° angle to the detection direction of the CCD component 1. This allows the CCD component 1 to perform multi-angle optical detection of the pin shape and the detection reference surface. Simultaneously, the product clamping component 4 performs non-destructive clamping and positioning of the product, and the lifting component 5 drives the vertical movement of the bottom pin fixture 3, allowing the pin to smoothly enter the pin hole 31, and then be photographed and detected by the CCD component 1.
[0054] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.
Claims
1. A mechanism for automatically detecting the shape of pins, characterized in that, This includes CCD components, product fixture platform, bottom pin fixture, product clamping components, and lifting components; The CCD component is used for optical inspection of the pin shape of the product; The product fixture platform has fixture acupoints on its surface. The fixture acupoints are through holes, and the upper diameter of the fixture acupoints is smaller than the outer diameter of the product to be tested. The fixture acupoints are used to align the placement direction of the product to be tested with the detection direction of the CCD component. The bottom needle fixture is located below the product fixture platform and can be pushed out from the fixture acupoint; the surface of the bottom needle fixture is provided with a needle hole array to effectively verify whether the needle array on the product is compliant. The product clamping assembly is used to clamp and position the product on the acupoint of the jig; The lifting assembly is used to drive the bottom pin fixture to move vertically.
2. The mechanism for automatically detecting the shape of a pin according to claim 1, characterized in that, The fixture has positioning protrusions on the acupoints, and the shape of the positioning protrusions corresponds to the shape of the product, which are used to position the product.
3. The mechanism for automatically detecting the shape of a pin according to claim 1, characterized in that, The angle at which the product to be tested is placed on the acupoint of the treatment tool forms a 45° angle with the detection direction of the CCD component.
4. The mechanism for automatically detecting the shape of a pin according to claim 1, characterized in that, The pin hole has a guide arc surface near the opening end of the product.
5. The mechanism for automatically detecting the shape of a pin according to claim 1, characterized in that, The depth of the pin hole is less than the length of the product pin, and there is a detection gap between the bottom pin fixture and the side wall of the product.
6. The mechanism for automatically detecting the shape of a pin according to claim 1, characterized in that, The product clamping assembly includes a left clamping member and a right clamping member. Both the left and right clamping members include clamping plates. The sidewalls of the clamping plates that contact the product are coated with rubber. The sidewalls of the clamping plates are configured to correspond to the shape of the product.
7. The mechanism for automatically detecting the shape of a pin according to claim 6, characterized in that, The clamping plate has a receiving part on its side wall, and the receiving part has a positioning recess for supporting the bottom of the product.
8. The mechanism for automatically detecting the shape of a pin according to claim 1, characterized in that, The CCD component includes a CCD image sensor and a CCD motion module. The CCD image sensor is used to acquire image data of the pins and reference surface. The CCD motion module is used to drive the CCD image sensor to move within the detection area. The CCD motion module is a multi-axis linkage mechanism to achieve precise positioning of the CCD image sensor in three-dimensional space.
9. The mechanism for automatically detecting the shape of a pin according to claim 1, characterized in that, The bottom needle fixture and the acupoints are each provided with multiple sets. Each set of bottom needle fixtures is provided with multiple sets of lifting components. The lifting components include a stabilizing plate and a lifting slide rail. The cross-section of the stabilizing plate is L-shaped. The short plate of the stabilizing plate is connected to the bottom needle fixture. The long plate of the stabilizing plate is slidably connected to the lifting slide rail. The end of the long plate of the stabilizing plate abuts against the lifting plate. The lifting plate is driven to rise and fall by a driving cylinder.