A pin selection device

By employing a rotary drive structure and an electron microscope in the PIN sorting device, and utilizing a combination design of positioning rods and mounting blocks, the problems of workpiece positioning and adaptation to different sizes were solved, achieving stable workpiece rotation and efficient sorting.

CN224594537UActive Publication Date: 2026-08-04DONGGUAN HEIZE PRECISE MACHINE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN HEIZE PRECISE MACHINE
Filing Date
2025-07-31
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing PIN sorting equipment poses a risk of contact between the workpiece end face and the equipment when the workpiece is rotated, making it difficult to effectively position the workpiece and unsuitable for sorting workpieces of different diameters and lengths.

Method used

A PIN sorting device was designed, which adopts a rotary drive structure and an electron microscope. The device uses a positioning rod to abut against the inner end face of the workpiece on the mounting block for axial positioning. The vertical movement of the mounting block and the positioning rod can be adjusted to adapt to the sorting of workpieces with different diameters and lengths. The front end of the positioning rod has a tapered structure to reduce the contact area. Combined with the drive wheel and drive motor, the device drives the workpiece to rotate.

Benefits of technology

It achieves effective axial positioning of the workpiece, reduces friction, adapts to the selection of workpieces of different sizes, and improves the adaptability and rotational stability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to detection equipment technical field especially relates to a kind of PIN sorting equipment, including rotary drive part structure and for driving PIN workpiece rotation, corresponding PIN workpiece is provided with electron microscope and makes the working end of electron microscope directly opposite PIN workpiece setting, further including display, and display is electrically connected with electron microscope;Rotary drive part structure includes the mounting plate of vertical arrangement, and two drive wheels are arranged in pairs on the mounting plate, and make the workpiece placement station of V-shaped structure setting between the two drive wheels upside, corresponding drive wheel is provided with drive structure and can drive drive wheel rotation, to make drive wheel rotate by the friction force of contact with workpiece. The utility model has the characteristics of better workpiece positioning, better avoid workpiece end surface and equipment surface contact, better adapt to different size workpieces.
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Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a PIN sorting device. Background Technology

[0002] During the manufacturing process of metallic columnar components (PINs), PINs typically require sorting. This is done by rotating the PIN and using an electronic magnifying glass to sort its surface.

[0003] However, due to its unreasonable design, the existing equipment has the following shortcomings during operation: 1. When the equipment drives the workpiece to rotate, there is a risk that the end face of the workpiece will form a surface contact with the equipment, which will increase the resistance of the workpiece and make it impossible to position the workpiece axially; 2. The equipment cannot adapt well to the selection of workpieces with different diameters and lengths.

[0004] Therefore, how to provide a PIN sorting device with a simpler and more reasonable structural design that can better position the workpiece, better avoid contact between the workpiece end face and the equipment surface, and better adapt to the sorting of workpieces of different sizes has become a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by this utility model is how to provide a PIN sorting device with a simpler and more reasonable structural design, which can better position the workpiece, better avoid contact between the workpiece end face and the equipment surface, and better adapt to the sorting of workpieces of different sizes.

[0006] To achieve the above objectives, this utility model provides a PIN sorting device, including a rotation drive structure for driving the PIN workpiece to rotate, an electron microscope corresponding to the PIN workpiece with its working end facing the PIN workpiece, and a display electrically connected to the electron microscope; characterized in that: the rotation drive structure includes a vertically arranged mounting plate, on which two drive wheels are arranged in pairs, forming a V-shaped workpiece placement station between the upper sides of the two drive wheels, a drive structure corresponding to the drive wheels for driving the drive wheels to rotate, so that the drive wheels drive the workpiece to rotate through frictional force in contact with the workpiece; a mounting block is provided on the mounting plate corresponding to the inner end of the workpiece, a vertical movement control structure for the mounting block is provided between the mounting block and the mounting plate, and a positioning rod is provided on the mounting block, such that the front end of the positioning rod can abut against and support the inner end face of the workpiece to limit the axial position of the workpiece.

[0007] Thus, in the aforementioned PIN sorting device structure, by setting a mounting block and a positioning rod on the mounting block, the front end of the positioning rod can abut against the inner end face of the workpiece to limit the axial position of the workpiece, thereby enabling axial positioning of the workpiece and better preventing axial movement. Typically, the front end of the positioning rod has a tapered design, which reduces the contact area between the workpiece and the rod, decreasing friction and thus better driving the workpiece to rotate and perform PIN sorting. Furthermore, the vertical movement control structure of the mounting block can drive the vertical movement of both the mounting block and the positioning rod, allowing for the limitation of workpieces with different diameters, thus providing better adaptability.

[0008] As an optimization, a horizontally through-hole threaded mounting hole is provided on the mounting block, and the positioning rod is threadedly installed in the threaded mounting hole.

[0009] This allows the axial position of the positioning rod on the mounting block to be adjusted and matched according to the axial dimension of the workpiece, thus enabling better selection of workpieces of different lengths.

[0010] Furthermore, a blind hole is provided on the front end face of the positioning rod, and a positioning head with a cylindrical structure is installed in the insertion hole, so that the front end of the positioning head has a tapered structure design.

[0011] In this way, the positioning rod and positioning head are detachable, resulting in a more rational design. Furthermore, the positioning head can be made of brass.

[0012] Furthermore, a locking nut is provided at the rear end of the positioning rod, so that the locking nut can be fitted and supported on the rear surface of the mounting block.

[0013] In this way, the positioning rod can be locked by tightening the lock nut, thereby better constraining its axial position.

[0014] Furthermore, the thickness of the mounting block is set to be smaller than the thickness of the mounting plate. This design is simpler and more reasonable.

[0015] As an optimization, the vertical movement control structure of the mounting block includes a rectangular mounting opening on the mounting plate that extends through its thickness direction. The width of the mounting opening matches the width of the mounting block, and the length of the mounting opening is greater than the length of the mounting block. The mounting block is positioned within the mounting opening, with its two sides abutting against the side walls of the mounting opening to form a vertical guide structure. A spring structure is provided between the lower side wall of the mounting opening and the lower end of the mounting block to give the mounting block a vertical upward movement tendency within the mounting opening. A screw hole and a control screw are also provided on the upper side of the mounting plate, and the lower end of the control screw can be vertically inserted into the mounting opening and abut against and support the upper end of the mounting block to push the mounting block downward against the thrust of the spring structure.

[0016] This makes the overall structural design simpler and more reasonable; by matching the width of the mounting block with the width of the mounting opening to form a guide structure, the structure becomes simpler and the guide rail structure can be eliminated. Secondly, it makes it easier to adjust the vertical position of the mounting block.

[0017] As an optimization, a blind mounting hole is provided in the middle of the lower side wall of the mounting port; the spring structure includes a helical spring installed in the blind mounting hole, and the upper end of the helical spring can abut against and support the lower end of the mounting block.

[0018] This design makes the helical springs more reasonable and easier to install.

[0019] Furthermore, the blind holes are arranged directly opposite the screw holes. This facilitates manufacturing.

[0020] As an optimization, each of the two drive wheels is mounted on the mounting plate via a mounting shaft; the drive structure includes a driving wheel and a driven wheel, each correspondingly mounted below the outer side of the two drive wheels, with a drive belt wound between the driving wheel and the driven wheel, such that the upper side of the drive belt is supported against the lower side of the two drive wheels to drive the two drive wheels to rotate; a drive motor is provided on the mounting plate corresponding to the driving wheel.

[0021] This simplifies the design of the drive mechanism, allowing for a more stable rotation of the drive wheel and thus making the workpiece rotate more smoothly.

[0022] As an optimization, each mounting shaft on the mounting plate is provided with a horizontal hole, and the mounting shaft extends into the horizontal hole. Each mounting shaft on the upper side of the mounting plate is provided with a threaded hole, and each threaded hole is provided with a locking screw, and the lower end of the locking screw can abut against the mounting shaft to limit the position of the mounting shaft. A drive wheel is rotatably mounted on the outer end of the mounting shaft.

[0023] This design is more reasonable and allows for adjustment of the outward extension position of the drive wheels according to requirements.

[0024] As an optimization, a supporting base plate is also included, with the lower end of the mounting plate being horizontally bent to form a fixing plate, and the fixing plate and the mounting plate having an overall L-shaped structure design, and the fixing plate being attached to the supporting base plate.

[0025] This makes the structural design simpler and more reasonable, and also makes it easier to install and arrange the mounting plates.

[0026] As an optimization, a vertically upward mounting rod is provided on the support base plate, and an electron microscope is mounted on the mounting rod.

[0027] In this way, by setting up the mounting rod, it becomes easier to install and arrange the electron microscope.

[0028] In summary, the above structure, by setting a positioning rod that can be adjusted in both vertical and axial positions, can better adapt to the selection of pins with different diameters and lengths. Furthermore, the tapered structure at the front end of the positioning rod can reduce the contact area, allowing the workpiece to rotate more effectively. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the PIN sorting device in a specific embodiment of this utility model.

[0030] Figure 2 yes Figure 1 The main view.

[0031] Figure 3 yes Figure 2 A schematic diagram of the AA section.

[0032] Figure 4 yes Figure 3 A magnified view of a portion of position B in the diagram.

[0033] Figure 5 yes Figure 1 Rear view. Detailed Implementation

[0034] The present invention will be further described below with reference to the accompanying drawings and embodiments. It should be noted that in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific manner. Therefore, they should not be construed as limitations on the present invention. Terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] like Figures 1 to 5As shown, a PIN sorting device includes a rotation drive structure for driving a PIN workpiece 1 to rotate, an electron microscope 2 corresponding to the PIN workpiece with its working end facing the PIN workpiece, and a display 3 electrically connected to the electron microscope. The rotation drive structure includes a vertically arranged mounting plate 4 with two drive wheels 5 arranged in pairs on the mounting plate, forming a V-shaped workpiece placement station between the upper sides of the two drive wheels. A drive structure is provided for each drive wheel to drive the drive wheel to rotate, so that the drive wheel drives the workpiece to rotate through friction with the workpiece. A mounting block 6 is provided on the mounting plate and corresponding to the inner end of the workpiece. A vertical movement control structure for the mounting block is provided between the mounting block and the mounting plate, and a positioning rod 7 is provided on the mounting block, with the front end of the positioning rod abutting and supporting the inner end face of the workpiece to limit the axial position of the workpiece.

[0036] Thus, in the aforementioned PIN sorting device structure, by setting a mounting block and a positioning rod on the mounting block, the front end of the positioning rod can abut against the inner end face of the workpiece to limit the axial position of the workpiece, thereby enabling axial positioning of the workpiece and better preventing axial movement. Typically, the front end of the positioning rod has a tapered design, which reduces the contact area between the workpiece and the rod, decreasing friction and thus better driving the workpiece to rotate and perform PIN sorting. Furthermore, the vertical movement control structure of the mounting block can drive the vertical movement of both the mounting block and the positioning rod, allowing for the limitation of workpieces with different diameters, thus providing better adaptability.

[0037] In this specific embodiment, a horizontally through-hole threaded mounting hole is provided on the mounting block, and the positioning rod is threadedly installed in the threaded mounting hole.

[0038] This allows the axial position of the positioning rod on the mounting block to be adjusted and matched according to the axial dimension of the workpiece, thus enabling better selection of workpieces of different lengths.

[0039] Furthermore, a blind hole is provided on the front end face of the positioning rod, and a positioning head 8 with a cylindrical structure is installed in the insertion hole, so that the front end of the positioning head has a tapered structure design.

[0040] In this way, the positioning rod and positioning head are detachable, resulting in a more rational design. Furthermore, the positioning head can be made of brass.

[0041] Furthermore, a locking nut 9 is provided at the rear end of the positioning rod, so that the locking nut can be firmly supported on the rear surface of the mounting block.

[0042] In this way, the positioning rod can be locked by tightening the lock nut, thereby better constraining its axial position.

[0043] Furthermore, the thickness of the mounting block is set to be smaller than the thickness of the mounting plate. This design is simpler and more reasonable.

[0044] In this specific embodiment, the vertical movement control structure of the mounting block includes a rectangular mounting opening 10 on the mounting plate, extending through its thickness direction. The width of the mounting opening matches the width of the mounting block, and the length of the mounting opening is greater than the length of the mounting block. The mounting block is positioned inside the mounting opening, with its two sides abutting against the side walls of the mounting opening to form a vertical guide structure. A spring structure is provided between the lower side wall of the mounting opening and the lower end of the mounting block to give the mounting block a vertical upward movement tendency within the mounting opening. A screw hole and a control screw 11 are also provided on the upper side of the mounting plate, allowing the lower end of the control screw to vertically downward penetrate into the mounting opening and abut against and support the upper end of the mounting block, thereby pushing the mounting block downward against the thrust of the spring structure.

[0045] This makes the overall structural design simpler and more reasonable; by matching the width of the mounting block with the width of the mounting opening to form a guide structure, the structure becomes simpler and the guide rail structure can be eliminated. Secondly, it makes it easier to adjust the vertical position of the mounting block.

[0046] In this specific embodiment, a blind mounting hole is provided at the middle position of the lower side wall of the mounting port; the spring structure includes a helical spring 12 installed in the blind mounting hole, and the upper end of the helical spring can abut against and support the lower end of the mounting block.

[0047] This design makes the helical springs more reasonable and easier to install.

[0048] Furthermore, the blind holes are arranged directly opposite the screw holes. This facilitates manufacturing.

[0049] In this specific embodiment, each of the two drive wheels is mounted on the mounting plate via a mounting shaft 13; the drive structure includes a drive wheel 14 and a driven wheel 15, which are respectively mounted on the lower outer side of the two drive wheels; a drive belt 16 is wound between the drive wheel and the driven wheel, such that the upper side of the drive belt is supported against the lower side of the two drive wheels to drive the two drive wheels to rotate; a drive motor 17 is provided on the mounting plate corresponding to the drive wheel.

[0050] This simplifies the design of the drive mechanism, allowing for a more stable rotation of the drive wheel and thus making the workpiece rotate more smoothly.

[0051] In this specific embodiment, a horizontal hole is provided on the mounting plate corresponding to the mounting shaft, and the mounting shaft extends into the horizontal hole. A threaded hole is provided on the upper side of the mounting plate corresponding to the horizontal hole, and a locking screw 18 is provided in the threaded hole, and the lower end of the locking screw can abut against the mounting shaft to limit the position of the mounting shaft. A drive wheel is rotatably mounted on the outer end of the mounting shaft.

[0052] This design is more reasonable and allows for adjustment of the outward extension position of the drive wheels according to requirements.

[0053] In this specific embodiment, it also includes a supporting base plate 19, and the lower end of the mounting plate is horizontally bent to form a fixing plate 20, so that the fixing plate and the mounting plate are designed in an L-shape, and the fixing plate is attached to the supporting base plate.

[0054] This makes the structural design simpler and more reasonable, and also makes it easier to install and arrange the mounting plates.

[0055] In this specific embodiment, a vertically upward mounting rod 21 is provided on the support base plate, and an electron microscope is mounted on the mounting rod.

[0056] In this way, by setting up the mounting rod, it becomes easier to install and arrange the electron microscope.

[0057] In summary, the above structure, by setting a positioning rod that can be adjusted in both vertical and axial positions, can better adapt to the selection of pins with different diameters and lengths. Furthermore, the tapered structure at the front end of the positioning rod can reduce the contact area, allowing the workpiece to rotate more effectively.

[0058] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A PIN selection device, comprising a rotating driving part structure and used for driving a PIN workpiece to rotate, an electron microscope is arranged corresponding to the PIN workpiece and the working end of the electron microscope is arranged to face the PIN workpiece, and further comprising a display, the display is electrically connected with the electron microscope; characterized in that ; The rotation drive structure includes a vertically arranged mounting plate with two drive wheels arranged in pairs on the mounting plate, forming a V-shaped workpiece placement station between the upper sides of the two drive wheels. A drive structure is provided for each drive wheel, which can drive the drive wheel to rotate, so that the drive wheel drives the workpiece to rotate through the friction force of contact with the workpiece. A mounting block is provided on the mounting plate and corresponding to the inner end of the workpiece. A vertical movement control structure for the mounting block is provided between the mounting block and the mounting plate. A positioning rod is provided on the mounting block, and the front end of the positioning rod can abut against and support the inner end face of the workpiece to limit the axial position of the workpiece.

2. A PIN selection device as claimed in claim 1, characterized in that; A horizontally through-hole threaded mounting hole is provided on the mounting block, and the positioning rod is threadedly installed in the threaded mounting hole.

3. A PIN selection device as claimed in claim 1, characterized in that The vertical movement control structure of the mounting block includes a rectangular mounting opening on the mounting plate that extends through its thickness. The width of the mounting opening matches the width of the mounting block, and the length of the mounting opening is greater than the length of the mounting block. The mounting block is positioned within the mounting opening, with its two sides abutting against the side walls of the mounting opening to form a vertical guide structure. A spring structure is provided between the lower side wall of the mounting opening and the lower end of the mounting block to give the mounting block a vertical upward movement tendency within the mounting opening. A screw hole and a control screw are also provided on the upper side of the mounting plate, with the lower end of the control screw able to vertically downward penetrate into the mounting opening and abut against and support the upper end of the mounting block, thereby pushing the mounting block downward against the thrust of the spring structure.

4. A PIN selection device as claimed in claim 3, characterized in that; A blind mounting hole is provided in the middle of the lower side wall of the mounting port; the spring structure includes a helical spring installed in the blind mounting hole, and the upper end of the helical spring can abut against and support the lower end of the mounting block.

5. A PIN selection device as claimed in claim 1, characterized in that; Two drive wheels are each mounted on a mounting plate via a mounting shaft; the drive structure includes a driving wheel and a driven wheel, each mounted on the lower outer side of the two drive wheels respectively, and a drive belt is wound between the driving wheel and the driven wheel, such that the upper side of the drive belt is supported against the lower side of the two drive wheels to drive the two drive wheels to rotate; a drive motor is provided on the mounting plate corresponding to the driving wheel.

6. A PIN selection device as claimed in claim 1, characterized in that; Each mounting shaft on the mounting plate has a horizontal hole corresponding to its mounting shaft, allowing the mounting shaft to extend into the horizontal hole. Each mounting shaft on the upper side of the mounting plate has a threaded hole corresponding to its horizontal hole, and each threaded hole has a locking screw, with the lower end of the locking screw abutting against the mounting shaft to restrict its position. A drive wheel is rotatably mounted on the outer end of the mounting shaft.

7. A PIN selection device as claimed in claim 1, characterized in that It also includes a supporting base plate, with the lower end of the mounting plate bent horizontally to form a fixing plate, and the fixing plate and the mounting plate are designed in an L-shape, so that the fixing plate is attached to the supporting base plate.

8. A PIN selection device as claimed in claim 7, characterized in that; A vertically upward mounting rod is provided on the supporting base plate, and an electron microscope is mounted on the mounting rod.