Electronic component pin detection device

Abstract

The utility model discloses an electronic component pin detection device, and solves the problem that a driving mechanism is damaged due to the fact that force is buffered and transmitted to the driving mechanism through a spring in pin verticality detection. The device comprises a support, a vertically sliding detection unit is arranged below the support, and a vertically sliding impact block is arranged above the detection unit; a horizontally sliding rectangular block is arranged above the bracket, a connecting rod is hinged below the rectangular block, and the lower end of the connecting rod is hinged and fixed with an impact block; the outer end of the rectangular block is fixedly connected with a spring, and the other end of the spring is fixedly connected with the support.

Description

Technical Field

[0001] The utility model relates to the technical field of pin inspection tooling, in particular to a pin detection device for electronic components. Background Art

[0002] Electronic components are basic elements in electronic circuits. They have two or more leads or metal nodes. Electronic components must be connected to each other to form an electronic circuit with specific functions. One of the common ways to connect electronic components is to solder them to a printed circuit board.

[0003] In the production process of electronic components, one of the most common inspections is the skew inspection. The pins are inspected vertically to detect electronic components with tilted pins. Currently, one of the more common practices is manual visual inspection, and the other method is machine vision inspection. The former has high labor costs and it is difficult to ensure stability, while the latter has high inspection costs.

[0004] The application number is 202223185535.X, and the name is a pin skew detection mechanism, which includes a frame with at least one detection station; a detection component, including a bracket, a driving mechanism, a driving plate, and detection units with the same number of detection stations, the driving mechanism is connected to the bracket and is used to drive the driving plate to reciprocate in the vertical direction, each detection unit includes a slide rail, a detection block, a trigger rod and a sensor, the slide rail is arranged on the driving plate in the vertical direction, the detection block is slidably connected to the slide rail, the trigger rod is vertically arranged on the detection block, and the sensor is fixedly connected to the driving plate and located at the top of the trigger rod; wherein, a detection block is correspondingly arranged above a detection station, and a detection through hole is opened on the detection block. It has a simple structure and can quickly and conveniently detect the verticality of the relay pins.

[0005] However, it also has its shortcomings. The pin lengths of electronic components of different specifications are different. When the pin length is long, it relies on the spring on the top of the detection block as a buffer. The spring is in direct vertical contact with the bracket, which will transfer the force vertically to the upper part of the bracket. The driving mechanism is installed in the vertical direction of the bracket, which is likely to cause damage to the driving mechanism. Utility Model Content

[0006] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides an electronic component pin detection device, which effectively solves the problem of relying on springs to transmit force buffering to a drive mechanism during pin verticality detection, which poses a risk of damage to the drive mechanism.

[0007] To achieve the above-mentioned purpose, the technical solution of the utility model is: an electronic component pin detection device, comprising a bracket, a vertically sliding detection unit is arranged below the bracket, and a vertically sliding impact block is arranged above the detection unit;

[0008] A horizontally sliding rectangular block is arranged above the bracket, a connecting rod is hingedly connected below the rectangular block, and the lower end of the connecting rod is hingedly fixed to the impact block;

[0009] The outer end of the rectangular block is fixedly connected with a spring, and the other end of the spring is fixedly connected with the bracket.

[0010] Preferably, a guide rod is fixed to the lower end of the bracket, and the guide rod can slide through the rectangular block.

[0011] Preferably, two rectangular blocks are provided, distributed on the left and right sides of the bracket, and a tension spring is fixedly connected between the two rectangular blocks.

[0012] Preferably, a guide rod is fixed to the lower end of the bracket, and the guide rod can slide through the impact block.

[0013] Preferably, a plug is fixed to the lower end of the guide rod, and the plug is a structure for limiting the impact block from moving vertically downward to an extreme position.

[0014] Preferably, the detection unit comprises a vertically sliding sliding block, a detection plate with adjustable vertical height is arranged on the sliding block, a plurality of detection through holes are arranged on the detection plate, and a marking unit is arranged at the lower end of the detection through hole;

[0015] The marking unit comprises a carrier plate detachably connected to the detection plate, a marking block is placed at the lower end of the carrier plate, and a cover is detachably connected to the lower end of the carrier plate, the cover is a structure for sealing the marking block in the carrier plate.

[0016] Preferably, the carrier plate is threadably connected to the detection plate.

[0017] Preferably, a vertical guide block is provided on the loading plate, and a vertical guide groove is provided on the marking block, and the guide groove cooperates with the guide block to form a structure for limiting the marking block.

[0018] Preferably, the cover is threadably connected to the carrier plate.

[0019] Preferably, a threaded rod is rotatably provided on the sliding block, and the threaded rod is threadably connected to the detection plate.

[0020] Preferably, the sliding block is provided with a vertical dovetail groove, a dovetail block is slidably provided in the dovetail groove, and the outer end of the dovetail block passes through the dovetail groove and is fixedly connected to the loading plate.

[0021] Compared with the prior art, the utility model has the following benefits: 1) When the detection unit collides with the impact block, the force of the vertical movement is converted into a horizontal force, thereby reducing the vertical impact on the bracket 1 and avoiding damage to the drive mechanism; 2) The vertical position of the detection plate on the sliding block is adjustable, which increases versatility; 3) The setting of the marking block can quickly identify unqualified electronic components. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the shaft side structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the motion structure of the impact block of the utility model;

[0025] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of the middle part A;

[0026] Figure 5 This is a schematic diagram of the structure of the detection unit of the utility model;

[0027] Figure 6 This is a schematic diagram of the shaft side structure of the detection unit of the utility model;

[0028] Figure 7 This is a schematic diagram of the marking unit structure of the utility model;

[0029] Figure 8 for Figure 7 The enlarged structural diagram of the middle B part;

[0030] In the figure: 1. bracket; 2. detection unit; 3. impact block; 4. rectangular block; 5. connecting rod; 6. spring; 7. guide rod; 8. tension spring; 9. guide rod; 10. plug; 11. sliding block; 12. detection plate; 13. loading plate; 14. marking block; 15. cover; 16. threaded rod. DETAILED DESCRIPTION

[0031] 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 herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0033] Please refer to Figure 1-8, an electronic component pin detection device, comprising a bracket 1, a vertically sliding detection unit 2 is arranged below the bracket 1, and a vertically sliding impact block 3 is arranged above the detection unit 2;

[0034] A horizontally sliding rectangular block 4 is arranged above the bracket 1, a connecting rod 5 is hingedly connected below the rectangular block 4, and the lower end of the connecting rod 5 is hingedly fixed to the impact block 3;

[0035] The outer end of the rectangular block 4 is fixedly connected with a spring 6 , and the other end of the spring 6 is fixedly connected to the bracket 1 .

[0036] In this device, a support plate is fixed at the upper end of the bracket 1, and a driving mechanism is installed on the support plate. The driving mechanism can be a hydraulic cylinder or an electric push rod. The lower end of the driving mechanism is fixedly connected to the detection unit 2. Through the movement of the driving mechanism, the detection unit 2 is driven to detect the verticality of the pin.

[0037] When detecting the length of longer pins, in order to avoid the occurrence of top impact, when the detection unit 2 slides up to the impact block 3, the impact block 3 produces a vertical movement. At this time, under the action of the connecting rod 5, the rectangular block 4 is driven to slide horizontally outward. The rectangular block 4 slides horizontally to squeeze the spring 6, thereby converting the vertical impact force into a horizontal force. The impact force is borne by the left and right sides of the bracket 1. At this time, no impact force will be generated on the vertical direction of the bracket 1, thereby ensuring damage to the driving unit.

[0038] A guide rod 7 is fixed to the lower end of the bracket 1 , and the guide rod 7 can slidably penetrate the rectangular block 4 .

[0039] In the present device, the guide rod 7 provides guidance for the horizontal sliding of the rectangular block 4, thereby ensuring the horizontal sliding effect of the rectangular block 4.

[0040] There are two rectangular blocks 4 , which are distributed on the left and right sides of the bracket 1 , and a tension spring 8 is fixedly connected between the two rectangular blocks 4 .

[0041] In addition, the spring 6 and the tension spring 8 can be arranged on the outer circumference of the guide rod 7, which can save a certain amount of space and at the same time ensure the elastic effect.

[0042] The arrangement of the tension spring 8 and the spring 6 increases the elastic coefficient, thereby being able to quickly reduce the force of the impact and ensure the final effect.

[0043] A guide rod 9 is fixed to the lower end of the bracket 1 , and the guide rod 9 can slidably penetrate the impact block 3 .

[0044] In the present device, an L-shaped connecting rod is connected to the front end of the impact block 3, a limit block is fixed to the upper end of the connecting rod, and the guide rod 9 can slidably penetrate the limit block.

[0045] A plug 10 is fixed to the lower end of the guide rod 9, and the plug 10 is a structure for limiting the impact block 3 from moving vertically downward to an extreme position.

[0046] The provision of the plug 10 limits the downward movement limit of the limit block, thereby preventing the impact block 3 from contacting the detection unit 2 and interfering with the movement of the detection unit 2.

[0047] The detection unit 2 includes a vertically sliding sliding block 11, on which a detection plate 12 with adjustable vertical height is arranged, and on which a plurality of detection through holes are arranged, and at the lower ends of the detection through holes a marking unit is arranged;

[0048] The marking unit includes a carrier plate 13 detachably connected to the detection plate 12 , a marking block 14 is placed at the lower end of the carrier plate 13 , and a cover 15 is detachably connected to the lower end of the carrier plate 13 , and the cover 15 is a structure for sealing the marking block 14 in the carrier plate 13 .

[0049] In the present device, a vertical guiding device is provided on the bracket 1, and the guiding device ensures a vertical sliding effect of the sliding block 11. There are many types of guiding devices, which are not listed one by one.

[0050] The driving end of the driving mechanism is fixedly connected to the sliding block 11, driving the sliding block 11 to slide vertically. The vertical position of the detection board 12 on the sliding block 11 can be adjusted, so that the position of the detection board 12 can be adjusted according to the height of the pins of the electronic components, thereby achieving universalization of the detection board 12.

[0051] The second improvement we made was to replace the trigger rod in the pin skew detection mechanism with application number 202223185535.X, because the above patent relies on the fact that the pin cannot pass through the detection hole smoothly, which will lift the detection block. This method has great risks because the pins are relatively thin. The present device uses a marking block 14, which can be an annular fuel pool or an annular ink cartridge. When the pin bends and contacts the marking block 14, a mark will be generated. At this time, when a pin is unqualified, the detection unit 2 cannot continue to move downward. The pin is in contact with the marking block 14 at this time, and the marking block 14 marks the pin, thereby identifying the unqualified part from multiple detected electronic components, so that detection and identification can be performed quickly.

[0052] In addition, because the marking block 14 is a consumable part, a carrier plate 13 is added. The carrier plate 13 is provided with a groove, and the marking block 14 is placed in the groove. The marking block 14 is then fixed to the carrier plate 13 through a cover 15.

[0053] The object carrier plate 13 is threadably connected to the detection plate 12 .

[0054] The object carrier plate 13 is provided with a vertical guide block, and the marking block 14 is provided with a vertical guide groove. The guide groove cooperates with the guide block to form a structure for limiting the marking block 14 .

[0055] The cover 15 is threadably connected to the carrier plate 13 .

[0056] There are many ways of detachable connection, so we have listed a threaded connection, and a snap-on connection can also be used.

[0057] The sliding block 11 is rotatably provided with a threaded rod 16 , which is threadably connected to the detection plate 12 .

[0058] The sliding block 11 is provided with a vertical dovetail groove, in which a dovetail block is slidably provided, and the outer end of the dovetail block passes through the dovetail groove and is fixedly connected to the loading plate 13 .

[0059] In the present device, the detection plate 12 is driven to adjust its vertical position by rotating the threaded rod 16 .

[0060] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0061] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" that may appear should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the term "provided with" that may appear should be understood in a broad sense. For example, the object "provided with" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or an inseparable connection. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. An electronic component pin detection device, comprising a bracket (1), a vertically sliding detection unit (2) being arranged below the bracket (1), characterized in that: A vertically sliding impact block (3) is arranged above the detection unit (2); A horizontally sliding rectangular block (4) is arranged above the bracket (1), a connecting rod (5) is hingedly connected below the rectangular block (4), and the lower end of the connecting rod (5) is hingedly fixed to the impact block (3); The outer end of the rectangular block (4) is fixedly connected to a spring (6), and the other end of the spring (6) is fixedly connected to the bracket (1).

2. The electronic component pin detection device according to claim 1, characterized in that: A guide rod (7) is fixed to the lower end of the bracket (1), and the guide rod (7) can slidably penetrate the rectangular block (4).

3. The electronic component pin detection device according to claim 1, characterized in that: Two rectangular blocks (4) are provided, distributed on the left and right sides of the bracket (1), and a tension spring (8) is fixedly connected between the two rectangular blocks (4).

4. The electronic component pin detection device according to claim 1, characterized in that: A guide rod (9) is fixed to the lower end of the bracket (1), and the guide rod (9) can slidably penetrate the impact block (3).

5. The electronic component pin detection device according to claim 4, characterized in that: A plug (10) is fixed to the lower end of the guide rod (9), and the plug (10) is a structure for limiting the vertical downward movement of the impact block (3).

6. The electronic component pin detection device according to claim 1, characterized in that: The detection unit (2) comprises a vertically sliding sliding block (11), a detection plate (12) with an adjustable vertical height is arranged on the sliding block (11), a plurality of detection through holes are arranged on the detection plate (12), and a marking unit is arranged at the lower end of the detection through hole; The marking unit comprises a carrier plate (13) detachably connected to the detection plate (12); a marking block (14) is placed at the lower end of the carrier plate (13); a cover (15) is detachably connected to the lower end of the carrier plate (13); the cover (15) is a structure for sealing the marking block (14) within the carrier plate (13).

7. The electronic component pin detection device according to claim 6, characterized in that: The object carrier plate (13) is threadably connected to the detection plate (12).

8. The electronic component pin detection device according to claim 6, characterized in that: The object carrier plate (13) is provided with a vertical guide block, and the marking block (14) is provided with a vertical guide groove, and the guide groove cooperates with the guide block to form a structure for limiting the marking block (14).

9. The electronic component pin detection device according to claim 6, characterized in that: The cover (15) is threadably connected to the carrier plate (13).

10. The electronic component pin detection device according to claim 6, characterized in that: The sliding block (11) is rotatably provided with a threaded rod (16), and the threaded rod (16) is threadably connected to the detection plate (12).

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