Stranded wire contact pin detection and classification device

Abstract

The utility model discloses a stranded wire contact pin detecting and classifying device which comprises a material moving and classifying mechanism, a visual detecting mechanism and a classifying box, the material moving and classifying mechanism comprises a linear displacement driving piece, a rotary driving piece and a clamping jaw, and the top and the side face of the clamping jaw are provided with through openings. The clamping part is used for clamping a stranded wire contact pin and placing the two ends of the stranded wire contact pin in the through opening and outside the clamping jaw respectively, the movable end of the rotary driving part is connected with the clamping jaw and used for driving the clamping jaw to rotate, and the movable end of the linear displacement driving part is connected with the rotary driving part; and the visual detection mechanism is arranged above the clamping jaw and is used for visually detecting the quality of the part of the stranded wire contact pin inside the through hole and outside the clamping jaw. According to the utility model, through cooperation of the linear displacement driving member, the rotation driving member and the clamping jaw on the material moving and classifying mechanism, clamping, rotation and linear movement of two exposed ends of a stranded wire contact pin can be realized, quality detection of the two ends is carried out through machine vision in cooperation with the visual detection mechanism, and classified storage is carried out through the classification box.

Description

Technical Field

[0001] The utility model relates to the technical field of twisted wire pin detection and classification, in particular to a twisted wire pin detection and classification device. Background Art

[0002] Twisted wire elastic pins (commonly known as twisted pins) are made of two layers of multi-strand copper wire twisted in opposite directions, welded at both ends into a bundle, one end pressed into a pin sleeve, and the other end upturned. They are light weight, small size, and reliable contact, and are widely used in electronic components. For the quality inspection of pins, visual inspection methods are currently more commonly used. For example, Chinese patent 202022205927.2 discloses a terminal pin inspection device, which includes a frame, a jig, a jig 1 horizontal moving mechanism, a jig 2, a jig 2 horizontal moving mechanism, a shield, a shield lifting mechanism, a CCD industrial camera, and a light source. The frame is fixed with a CCD industrial camera, a shield lifting mechanism, a jig 1 horizontal moving mechanism, and a jig 2 horizontal moving mechanism in sequence from top to bottom.

[0003] Regarding the above-mentioned prior art, since the quality inspection of the twisted wire pins does not only require the inspection of one end, it is usually necessary to inspect the quality of both ends before determining whether they are qualified. In addition, they need to be classified according to their different levels of qualification. Currently, there is no equipment that can simultaneously inspect and classify the quality of both ends of the twisted wire pins. Utility Model Content

[0004] The purpose of the present invention is to overcome the above technical deficiencies and propose a device for detecting and classifying twisted wire pins, so as to solve the technical problem that there is currently no equipment in the prior art that can simultaneously detect and classify the quality of twisted wire pins at both ends.

[0005] In order to achieve the above technical purpose, the present invention adopts the following technical solutions:

[0006] The utility model provides a device for detecting and classifying twisted wire pins, comprising:

[0007] The material transfer and sorting mechanism includes a linear displacement drive, a rotary drive, and a clamping jaw. The top and side surfaces of the clamping jaw are provided with openings for clamping the stranded wire pins and placing the two ends in the openings and outside the clamping jaws, respectively. The movable end of the rotary drive is connected to the clamping jaw for driving the clamping jaw to rotate. The movable end of the linear displacement drive is connected to the rotary drive.

[0008] A visual inspection mechanism, which is provided above the clamping jaws and is used to visually inspect the quality of the stranded wire pins located inside the through-hole and outside the clamping jaws; and

[0009] A classification box, wherein a plurality of the classification boxes are arranged in sequence below the linear displacement area of ​​the clamping jaws, and are used to receive the stranded wire pins that have completed detection and are released by the clamping jaws.

[0010] In some embodiments, a base is further included, the linear displacement driver and the visual detection mechanism are both installed on the top of the base, and the classification box is detachably arranged on the top of the base.

[0011] In some embodiments, a loading mechanism is also included, which includes a feeding assembly, a clamping assembly and a positioning assembly. The feeding assembly has a discharge port, which is used for the stranded wire pins to be pushed in sequence from the discharge port. The clamping assembly is arranged adjacent to the discharge port, and is used to clamp a single stranded wire pin guided out from the discharge port. The positioning assembly is arranged on the side of the clamping assembly away from the feeding assembly, and is used to block and position the stranded wire pins when discharging.

[0012] In some embodiments, the clamp includes a first cylinder, a fixed chuck and a dynamic chuck, the fixed chuck and the first cylinder are fixed to the movable end of the rotary drive member, the dynamic chuck is arranged at the telescopic end of the first cylinder and is opposite to the dynamic chuck, and the through opening is opened at the top and both sides of the fixed chuck and the dynamic chuck.

[0013] In some embodiments, the fixed chuck and the dynamic chuck are both square in shape, and arc-shaped grooves are formed on opposite sides of the fixed chuck and the dynamic chuck.

[0014] In some embodiments, the clamping assembly includes a second cylinder, an upper chuck and a lower chuck. The second cylinder is arranged on the base for vertical extension and contraction. The lower chuck is arranged at the top of the second cylinder. The upper chuck is arranged on the discharge port and is located directly above the lower chuck.

[0015] In some embodiments, the positioning assembly includes a third cylinder and a baffle. The third cylinder is arranged on the base and forms a ninety-degree angle with the displacement direction of the linear displacement drive in the horizontal plane. The telescopic end of the third cylinder is connected to the baffle. The baffle has a position state of blocking the discharge direction and a position state of being located beside the discharge direction.

[0016] In some embodiments, the visual inspection mechanism includes a support frame and a CCD industrial camera, the support frame is fixed on the base, and the CCD industrial camera is installed on one side of the top of the support frame.

[0017] In some embodiments, the rotary drive member includes a drive motor, a synchronous wheel, a synchronous belt and a rotating shaft. The drive motor is installed on the top of the movable end of the linear displacement drive member. The rotating shaft is rotatably connected to the top of the movable end of the linear displacement drive member. The two synchronous wheels are coaxially arranged on the output shaft of the drive motor and the rotating shaft respectively, and the synchronous belt transmission is connected between the outer sides of the two synchronous wheels.

[0018] In some embodiments, the feeding assembly includes a circular vibration plate, a vibrator and a feed pipe. The circular vibration plate is fixed on the vibrator. A spiral track is provided on the circular vibration plate. One end of the feed pipe is connected to the spiral track, and the discharge port is provided at the other end of the feed pipe.

[0019] Compared with the existing technology, the twisted wire pin detection and classification device provided by the utility model can clamp, rotate and linearly move the exposed ends of the twisted wire pins through the cooperation of the linear displacement drive, the rotation drive and the clamping claws on the material transfer and classification mechanism, and then cooperate with the visual inspection mechanism to perform quality inspection on both ends by machine vision, and classify and store them through classification boxes, thereby achieving the purpose of simultaneous inspection of the quality of the solder joints at both ends of the twisted wire pins, and they can be classified and stored according to the degree of qualification. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of a device for detecting and classifying twisted wire pins provided by an embodiment of the present utility model;

[0021] Figure 2 The embodiment of the present utility model provides Figure 1 A partial enlarged view of part A;

[0022] Figure 3 This is a schematic structural diagram of the clamping jaws provided by an embodiment of the present utility model;

[0023] Figure 4 The embodiment of the present utility model provides Figure 1 A partial enlarged view of part B;

[0024] Figure 5 This is a top view of the twisted wire pin detection and classification device provided by an embodiment of the present utility model;

[0025] Figure 6 The embodiment of the present utility model provides Figure 5 A partial enlarged view of part C.

[0026] Description of reference numerals:

[0027] 1. Material transfer and sorting mechanism; 11. Linear displacement drive component; 12. Rotary drive component; 121. Drive motor; 122. Synchronous wheel; 123. Synchronous belt; 124. Rotating shaft; 13. Gripper; 131. First cylinder; 132. Fixed chuck; 133. Moving chuck; 101. Through port; 2. Visual inspection mechanism; 21. Support frame; 22. CCD industrial camera; 3. Sorting box; 4. Base; 5. Loading mechanism; 51. Feeding assembly; 511. Circular vibration plate; 512. Feeding pipe; 52. Clamping assembly; 521. Second cylinder; 522. Upper chuck; 523. Lower chuck; 53. Positioning assembly; 531. Third cylinder; 532. Baffle; 501. Discharge port; 6. Wire pin. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] In order to solve the technical problem that there is currently no equipment for simultaneously detecting and classifying the quality of both ends of a twisted wire pin, the utility model provides a twisted wire pin detection and classification device, which can realize simultaneous quality detection and classification of both ends of a twisted wire pin.

[0030] It should be noted that the twisted wire pin detection and classification device described in the present invention is used for but not limited to twisted pins, etc. For the convenience of explanation, in the present invention, only the twisted wire pin detection and classification device is used for the detection and classification of twisted pins as an example for explanation. The principle of the twisted wire pin detection and classification device being used for the detection of both ends of other types of pins is essentially the same as the principle applied to the detection and classification of twisted pins, and will not be elaborated here.

[0031] See also Figure 1-3 , Figure 1 The following is a schematic diagram of the structure of a detection and classification device for stranded wire pins according to an embodiment of the present invention. The detection and classification device for stranded wire pins includes a material transfer and classification mechanism 1, a visual inspection mechanism 2, and a classification box 3. The material transfer and classification mechanism 1 includes a linear displacement drive 11, a rotary drive 12, and a clamping jaw 13. The top and side surfaces of the clamping jaw 13 are provided with openings 101. The openings 101 constitute an unshielded area for visual inspection by the visual inspection mechanism 2. The clamping jaw 13 is mainly used to clamp the stranded wire pins 6. After clamping, the two ends of the stranded wire pins 6 are placed inside the openings 101 and outside the clamping jaw 13, respectively, as shown in the attached figure. Figure 3As shown, in addition, the movable end of the rotary drive member 12 is connected to the clamping jaw 13, which is used to drive the clamping jaw 13 to rotate and detect the end surface quality of the product, forming a function of detecting while rotating. It can be divided into four directions, and the detection is performed once every ninety degrees. The detection is performed in four directions to achieve the purpose of comprehensively detecting the quality of the solder joints at both ends of the twisted wire pin 6. The movable end of the linear displacement drive member 11 is connected to the rotary drive member 12, which can drive the clamping jaw 13 to move linearly. According to the degree of its qualification, it can be divided into completely qualified, qualified at only one end, and unqualified at both ends. During the linear movement, it is moved above different classification boxes 3 to loosen The wire pins can be put into the container for classification after the clamping is opened; the visual inspection mechanism 2 is arranged above the clamping jaws 13, and is used to visually inspect the quality of the wire pins inside the through-portion and outside the clamping jaws. The through-portion 101 and the outside of the clamping jaws 13 are captured from top to bottom by a visual inspection mechanism 2 for visual inspection, and both ends of the wire pins 6 can be inspected at the same time; a plurality of classification boxes 3 are arranged in sequence below the linear displacement area of ​​the clamping jaws 13, and are used to receive the wire pins that have completed the inspection and are released by the clamping jaws. There are three classification boxes 3, which respectively correspond to the delivery of wire pins that are completely qualified, qualified at only one end, and unqualified at both ends.

[0032] In this embodiment, the stranded wire pin 6 is clamped on the clamping claw 13, and the two ends of the stranded wire pin 6 are placed in the through opening 101 and outside the clamping claw 13 respectively. The visual inspection mechanism 2 captures the image of the through opening 101 and the outside of the clamping claw 13 from top to bottom, and cooperates with the rotating drive member 12 to rotate the stranded wire pin 6 in multiple directions for visual inspection and judgement of its qualification. According to its qualification degree, it is divided into completely qualified, only one end qualified, and both ends unqualified. The linear displacement drive member 11 is used to move the clamping claw 13 to the top of the corresponding classification box 3, and then release the clamping to put the stranded wire pin 6 into it. The quality inspection of both ends of the stranded wire pin 6 can be carried out at the same time, and according to the quality inspection results, they are put into different classification boxes 3 for classification.

[0033] In one embodiment, see Figure 1 , and also includes a base 4, the linear displacement driver 11 and the visual detection mechanism 2 are both installed on the top of the base 4, and the relative positions of the visual detection mechanism 2 and the linear displacement driver 11 are positioned; the classification box 3 is detachably arranged on the top of the base 4, and the classification box 3 can be installed on the base 4 by plug-in positioning, which is convenient for taking and position limitation.

[0034] It can be understood that the linear displacement drive 11 can adopt a mature mechanism with linear displacement drive function such as a linear guide rail to achieve the reciprocating movement of the clamp in the left and right directions. It is mainly used to control the clamp 13 to move to the top of different classification boxes 3, and to the bottom of the visual inspection mechanism 2. This is not the only limitation here.

[0035] In this embodiment, in order to achieve the clamping function of the clamping claw 13, please refer to Figure 2 and Figure 3 The clamping jaw 13 includes a first cylinder 131, a fixed clamping head 132 and a dynamic clamping head 133. The fixed clamping head 132 and the first cylinder 131 are both fixed to the movable end of the rotary drive member 12. The dynamic clamping head 133 is arranged at the telescopic end of the first cylinder 131 and is opposite to the dynamic clamping head 133. The through opening 101 is opened at the top and both sides of the fixed clamping head 132 and the dynamic clamping head 133. Through the extension and contraction of the first cylinder 131, the dynamic clamping head 133 and the fixed clamping head 132 form a clamping action, which can clamp the stranded wire pin 6.

[0036] Furthermore, the fixed clamp 132 and the movable clamp 133 are both square in shape, and arc-shaped grooves are provided on opposite sides of the fixed clamp 132 and the movable clamp 133. The arc-shaped grooves are used to accommodate the stranded wire pins. When clamped, they fit exactly with the outer cylindrical surface of the stranded wire pins to avoid deformation of the stranded wire pins caused by clamping.

[0037] In one embodiment, see Figure 1 、 Figure 4 、 Figure 5 and Figure 6 In order to connect the feeding of the upper detection and classification part, the stranded wire pin detection and classification device also includes a feeding mechanism 5, which includes a feeding component 51, a clamping component 52 and a positioning component 53. The feeding component 51 has a discharge port 501 thereon, which is used for the stranded wire pins to be pushed in sequence from the discharge port 501. The clamping component 52 is arranged adjacent to the discharge port 501, and is used to clamp a single stranded wire pin guided out from the discharge port 501. The positioning component 53 is arranged on the clamping component 52. The side away from the feeding component 51 is used for blocking and positioning the discharge of the stranded wire pins. The above structure mainly constitutes the sequential discharge of the stranded wire pins from the feeding component 51. Under the blocking of the positioning component 53, the single stranded wire pin is clamped and positioned by the clamping component 52 at the discharge port 501. After clamping and positioning, the positioning component 53 releases the blocking and waits for the clamping claw 13 to move over to clamp the stranded wire pin. Then, the clamping component 52 releases the clamping and waits for the next stranded wire pin to be clamped.

[0038] In this embodiment, the clamping assembly 52 includes a second cylinder 521, an upper chuck 522 and a lower chuck 523. The second cylinder 521 is arranged on the base 4 for vertical extension and contraction. The lower chuck 523 is arranged at the top of the second cylinder 521. The upper chuck 522 is arranged on the discharge port 501 and is located directly above the lower chuck 523. Through the extension and contraction of the second cylinder 521, the lower chuck 523 and the upper chuck 522 are clamped to clamp and position the twisted wire pins.

[0039] Furthermore, the positioning assembly 53 includes a third cylinder 531 and a baffle 532. The third cylinder 531 is arranged on the base 4 and forms a ninety-degree angle with the displacement direction of the linear displacement drive member 11 in the horizontal plane. The telescopic end of the third cylinder 531 is connected to the baffle 532. The baffle 532 has a position state of blocking in the discharge direction and a position state located beside the discharge direction. When discharging, it first blocks one side of the clamping area between the upper clamp 522 and the lower clamp 523 to control the length of the stranded wire pin pushed out. After the upper clamp 522 and the lower clamp 523 form a clamp, the third cylinder 531 contracts and moves the baffle 532 backward, so that the right area of ​​the stranded wire pin is not blocked, and the clamp 13 can be moved over for clamping and transfer, and subsequent visual inspection and classification delivery are carried out.

[0040] In one embodiment, see Figure 1 The visual inspection mechanism 2 includes a support frame 21 and a CCD industrial camera 22. The support frame 21 is fixed on the base 4, and the CCD industrial camera 22 is installed on the top side of the support frame 21. The support frame 21 suspends the CCD industrial camera 22 above the clamping jaw 13. When the clamping jaw 13 moves to the bottom of the CCD industrial camera 22, the image is captured by the CCD industrial camera 22 for quality inspection by machine vision.

[0041] In one embodiment, see Figure 5 The rotary drive member 12 includes a drive motor 121, a synchronous wheel 122, a synchronous belt 123 and a rotating shaft 124. The drive motor 121 is installed on the top of the movable end of the linear displacement drive member 11. The rotating shaft 124 is rotatably connected to the top of the movable end of the linear displacement drive member 11. The two synchronous wheels 122 are coaxially arranged on the output shaft of the drive motor 121 and the rotating shaft 124 respectively. The synchronous belt 123 is transmission-connected between the outer sides of the two synchronous wheels 122. The synchronous wheel 122 is driven to rotate by the drive motor 121. Under the transmission of the synchronous belt 123, the other synchronous wheel 122 is driven to rotate, thereby driving the rotating shaft 124 to rotate, forming a rotation drive of the clamping jaw 13, wherein the drive motor 121 can be a stepping motor.

[0042] Furthermore, the feeding assembly 51 includes a circular vibration disk 511, a vibrator and a feeding pipe 512. The circular vibration disk 511 is fixed on the vibrator. A spiral track is provided on the circular vibration disk 511. One end of the feeding pipe 512 is connected to the spiral track. The discharge port 501 is provided at the other end of the feeding pipe 512. The vibrator can drive the circular vibration disk 511 to vibrate in the vertical direction and torsional vibrate around its vertical axis, so that the stranded wire pins in the circular vibration disk 511 rise along the spiral track and are fed into the feeding pipe 512. The stranded wire pins entering from the front and back are arranged at one time and abutted head to tail to form a pushing effect.

[0043] It can be understood that the vibrator can be a composite vibrator, which is usually equipped with two or more excitation units, each unit is responsible for generating a vibration mode. This type of vibrator is designed to generate two vibration modes simultaneously to meet the needs of specific applications and is an existing mature device.

[0044] In order to better understand the present invention, the following Figures 1 to 6 The technical solution of the present invention is described in detail: the twisted wire pins are clamped and their two ends are exposed by the clamping claws 13 on the material transfer and classification mechanism 1, and the twisted wire pins clamped by the clamping claws 13 are driven to the visual inspection mechanism 2 by the linear displacement drive member 11, and the rotating multi-faceted inspection is performed in conjunction with the rotating drive member 12, and then moved to the top of the corresponding classification box 3 according to the qualified degree of the inspection, the clamping is released, and the pins fall into the classification box for classified storage, thereby achieving the purpose of simultaneous detection of the quality of the solder joints at both ends of the twisted wire pins, and can be classified and stored according to the qualified degree.

[0045] The specific embodiments of the present invention described above do not limit the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A device for detecting and classifying twisted wire pins, characterized in that: include: The material transfer and sorting mechanism includes a linear displacement drive, a rotary drive, and a clamping jaw. The top and side surfaces of the clamping jaw are provided with openings for clamping the stranded wire pins and placing the two ends in the openings and outside the clamping jaws, respectively. The movable end of the rotary drive is connected to the clamping jaw for driving the clamping jaw to rotate. The movable end of the linear displacement drive is connected to the rotary drive. A visual inspection mechanism is provided above the clamping jaws and is used to visually inspect the quality of the stranded wire pins located inside the through opening and outside the clamping jaws; as well as A classification box, wherein a plurality of the classification boxes are arranged in sequence below the linear displacement area of ​​the clamping jaws, and are used to receive the stranded wire pins that have completed detection and are released by the clamping jaws.

2. The twisted wire pin detection and classification device according to claim 1, characterized in that: It also includes a base, the linear displacement driving member and the visual detection mechanism are both installed on the top of the base, and the classification box is detachably arranged on the top of the base.

3. The twisted wire pin detection and classification device according to claim 2, characterized in that: It also includes a loading mechanism, which includes a feeding assembly, a clamping assembly and a positioning assembly. The feeding assembly has a discharge port, which is used for the stranded wire pins to be pushed in sequence from the discharge port. The clamping assembly is arranged adjacent to the discharge port, and is used to clamp a single stranded wire pin guided out from the discharge port. The positioning assembly is arranged on the side of the clamping assembly away from the feeding assembly, and is used to block and position the stranded wire pins when discharging.

4. The twisted wire pin detection and classification device according to claim 3, characterized in that: The clamping jaw includes a first cylinder, a fixed chuck and a dynamic chuck. The fixed chuck and the first cylinder are both fixed to the movable end of the rotary drive member. The dynamic chuck is arranged at the telescopic end of the first cylinder and is opposite to the dynamic chuck. The through opening is opened on the top and both sides of the fixed chuck and the dynamic chuck.

5. The twisted wire pin detection and classification device according to claim 4, characterized in that: The fixed chuck and the dynamic chuck are both square in shape, and arc-shaped grooves are formed on opposite sides of the fixed chuck and the dynamic chuck.

6. The twisted wire pin detection and classification device according to claim 5, characterized in that: The clamping assembly includes a second cylinder, an upper chuck and a lower chuck. The second cylinder is arranged on the base for vertical extension and contraction. The lower chuck is arranged at the top of the second cylinder. The upper chuck is arranged on the discharge port and is located directly above the lower chuck.

7. The device for detecting and classifying twisted wire pins according to claim 6, characterized in that: The positioning assembly includes a third cylinder and a baffle. The third cylinder is arranged on the base and forms a ninety-degree angle with the displacement direction of the linear displacement drive member in the horizontal plane. The telescopic end of the third cylinder is connected to the baffle. The baffle has a position state of blocking the discharge direction and a position state of being located beside the discharge direction.

8. The device for detecting and classifying twisted wire pins according to claim 7, characterized in that: The visual inspection mechanism includes a support frame and a CCD industrial camera. The support frame is fixed on the base, and the CCD industrial camera is installed on one side of the top of the support frame.

9. The device for detecting and classifying twisted wire pins according to claim 8, characterized in that: The rotary drive component includes a drive motor, a synchronous wheel, a synchronous belt and a rotating shaft. The drive motor is installed on the top of the movable end of the linear displacement drive component. The rotating shaft is rotatably connected to the top of the movable end of the linear displacement drive component. The two synchronous wheels are coaxially arranged on the output shaft of the drive motor and the rotating shaft respectively. The synchronous belt transmission is connected between the outer sides of the two synchronous wheels.

10. The twisted wire pin detection and classification device according to claim 9, characterized in that: The feeding assembly includes a circular vibration plate, a vibrator and a feeding pipe. The circular vibration plate is fixed on the vibrator. A spiral track is provided on the circular vibration plate. One end of the feeding pipe is connected to the spiral track. The discharge port is provided at the other end of the feeding pipe.

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