PIN height measuring device

Abstract

The utility model belongs to the technical field of PIN height measurement, and particularly relates to a PIN height measuring device, which comprises a base, a mounting rack is mounted on the base, a screw rod is mounted on an output shaft of a stepping motor, a guide block is assembled in a guide groove, an infrared distance meter is mounted on the guide block, and the infrared distance meter is mounted on the mounting rack. A placing plate is mounted on the inner wall of the plate groove, a plurality of groups of needle holes are formed in the placing plate, an annular groove is formed in the inner wall of each needle hole, a lifting plate is assembled in the annular groove, a second spring is mounted between the bottom side of the lifting plate and the inner wall of the annular groove, a lifting rod is mounted on the lifting plate, and PINs are placed in the needle holes. The infrared distance meter is sequentially moved to the position under each pin hole, the distance value from the lifting plate in each pin hole to the infrared distance meter is measured, the height value of each PIN is obtained, the height of the multiple PINs can be continuously measured through the structure, and the high efficiency of height measurement can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PIN pin height measurement, in particular to a PIN pin height measurement device. Background Art

[0002] PIN pins are mainly applied to automotive connectors, terminal blocks, power modules, connector plugs, micro motors, relays, sensors, instrument transformers, planar transformers, LED power supplies, transformers, electronic instruments and meters, etc. They are important components indispensable for the conduction, electrical connection and signal transmission of electronic and electrical products. In order to avoid the breakage of PIN pins during transportation after production, a PIN pin height measurement device is required to detect the quality of PIN pins before leaving the factory.

[0003] A Chinese patent with the authorization announcement number of CN 220893263 U discloses a PIN pin height measurement device, including: a fixed seat, a pin seat is arranged above the fixed seat, and a plurality of PIN pin bodies are installed on the pin seat. A support rod is fixed on the top of the fixed seat, and a 3D camera for observing the PIN pin bodies is arranged on the support rod. A fill light for filling light to the PIN pin bodies is arranged on one side of the 3D camera; a clamping device is arranged on the top of the fixed seat. The clamping device includes two fixed blocks, two transmission blocks are hinged in the two fixed blocks, and two clamping blocks are fixed on the tops of the two transmission blocks; through the cooperation of structures such as the clamping device and the transmission mechanism, the utility model can fix the bases of various different types of PIN pins, so that the measurement device can be applicable to different types of PIN pins, thereby facilitating the detection of different types of PIN pins, improving the work efficiency and facilitating the use of the measurement device.

[0004] During the process of measuring the height of PIN pins by the existing measurement device, it is impossible to continuously measure the height of multiple PIN pins, resulting in low measurement efficiency; therefore, a PIN pin height measurement device is proposed for the above problems. Content of the Utility Model

[0005] In order to make up for the deficiencies of the prior art and solve the problems existing in the prior art, the utility model proposes a PIN pin height measurement device.

[0006] The technical solution adopted by the present utility model to solve its technical problems is as follows: A PIN pin height measuring device of the present utility model includes a base, an installation frame is installed on the base, a control panel is installed on the side wall of the installation frame, a guide plate is installed on the bottom plate of the installation frame, a guide groove is opened in the guide plate, a stepping motor is installed on the side wall of the guide plate through a machine base, a lead screw is installed on the output shaft of the stepping motor, the lead screw is rotatably installed on the inner wall of the guide groove, a guide block is assembled in the guide groove, an infrared rangefinder is installed on the guide block, an infrared generator and an infrared receiver are installed on the infrared rangefinder, a fixing plate is installed on the side wall of the installation frame, a plate groove is opened on the fixing plate, a placing plate is installed on the inner wall of the plate groove, multiple needle holes are opened in the placing plate, an annular groove is opened on the inner wall of the needle hole, a lifting plate is assembled in the annular groove, a second spring is installed between the bottom side of the lifting plate and the inner wall of the annular groove, a lifting rod is installed on the lifting plate, a PIN pin is placed in the needle hole, a connecting groove is opened on the inner wall of the annular groove, a connecting block is assembled in the connecting groove, the connecting block is fixedly connected with the side wall of the lifting plate, an assembly plate is installed on the side wall of the installation frame, a hydraulic cylinder is installed on the assembly plate, a hydraulic rod is installed on the hydraulic cylinder, a moving groove is opened on the side wall of the installation frame, a moving block is assembled in the moving groove, a pressing plate is installed on the moving block, the pressing plate is fixedly connected with the hydraulic rod. The infrared rangefinder is sequentially moved to directly below each needle hole to measure the distance value from the lifting plate in each needle hole to the infrared rangefinder, and the height value of each PIN pin is obtained. This structure can continuously measure the heights of multiple PIN pins, which is beneficial to improving the efficiency of height measurement.

[0007] Preferably, sliding grooves are symmetrically opened on the inner wall of the needle hole, sliding blocks are assembled in the sliding grooves, a first spring is installed between the inner wall of the sliding block and the inner wall of the sliding groove, arc-shaped grooves are symmetrically opened on the inner wall of the needle hole, limiting plates are assembled in the arc-shaped grooves, and the limiting plates are fixedly connected with the sliding blocks. By inserting the PIN pin into the needle hole, under the action of the first spring, the limiting plates are in contact with the side wall of the PIN pin, making the PIN pin in a vertical state. The two limiting plates can limit PIN pins with different diameters, so the device can measure the heights of PIN pins with different diameters, which is beneficial to improving the adaptability of the device.

[0008] The beneficial effects of the present utility model are as follows:

[0009] 1. The present utility model measures the distance value from the lifting plate in each needle hole to the infrared rangefinder by sequentially moving the infrared rangefinder to directly below each needle hole, and obtains the height value of each PIN pin. This structure can continuously measure the heights of multiple PIN pins, which is beneficial to improving the efficiency of height measurement.

[0010] 2. In the present utility model, by inserting the PIN pin into the pin hole, under the action of the first spring, the limiting plate is in contact with the side wall of the PIN pin, making the PIN pin in a vertical state. The two limiting plates can limit PIN pins with different diameters. Therefore, the device can measure the height of PIN pins with different diameters, which is beneficial to improving the adaptability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0012] Figure 1 is a first perspective three-dimensional structure diagram;

[0013] Figure 2 is a three-dimensional structure diagram at the guide plate;

[0014] Figure 3 is a three-dimensional structure diagram at the placement plate;

[0015] Figure 4 is a three-dimensional structure diagram inside the pin hole;

[0016] Figure 5 is a three-dimensional structure diagram at the pressing plate.

[0017] In the figure: 1, base; 2, mounting frame; 3, control panel; 4, guide plate; 5, guide groove; 6, stepping motor; 7, lead screw; 8, guide block; 9, infrared rangefinder; 10, infrared generator; 11, infrared receiver; 12, fixing plate; 13, plate groove; 14, placement plate; 15, pin hole; 16, annular groove; 17, lifting plate; 18, second spring; 19, lifting rod; 20, connecting groove; 21, connecting block; 22, assembly plate; 23, hydraulic cylinder; 24, hydraulic rod; 25, moving groove; 26, moving block; 27, pressing plate; 28, sliding groove; 29, sliding block; 30, first spring; 31, arc groove; 32, limiting plate; 33, PIN pin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0019] Please refer to Figures 1-5 As shown in the figure, a PIN needle height measuring device includes a base 1, an installation frame 2 is installed on the base 1, a control panel 3 is installed on the side wall of the installation frame 2, a guide plate 4 is installed on the bottom plate of the installation frame 2, a guide groove 5 is opened in the guide plate 4, a stepping motor 6 is installed on the side wall of the guide plate 4 through a machine base, a lead screw 7 is installed on the output shaft of the stepping motor 6, the lead screw 7 is rotatably installed on the inner wall of the guide groove 5, a guide block 8 is assembled in the guide groove 5, an infrared rangefinder 9 is installed on the guide block 8, an infrared generator 10 and an infrared receiver 11 are installed on the infrared rangefinder 9, a fixing plate 12 is installed on the side wall of the installation frame 2, a plate groove 13 is opened in the fixing plate 12, a placing plate 14 is installed on the inner wall of the plate groove 13, a plurality of groups of needle holes 15 are opened in the placing plate 14, an annular groove 16 is opened in the inner wall of the needle hole 15, a lifting plate 17 is assembled in the annular groove 16, a second spring 18 is installed between the bottom side of the lifting plate 17 and the inner wall of the annular groove 16, a lifting rod 19 is installed on the lifting plate 17, a PIN needle 33 is placed in the needle hole 15, a connecting groove 20 is opened in the inner wall of the annular groove 16, a connecting block 21 is assembled in the connecting groove 20, the connecting block 21 is fixedly connected with the side wall of the lifting plate 17, an assembly plate 22 is installed on the side wall of the installation frame 2, a hydraulic cylinder 23 is installed on the assembly plate 22, a hydraulic rod 24 is installed on the hydraulic cylinder 23, a moving groove 25 is opened on the side wall of the installation frame 2, a moving block 26 is assembled in the moving groove 25, a pressing plate 27 is installed on the moving block 26, and the pressing plate 27 is fixedly connected with the hydraulic rod 24; During operation, in the process of measuring the height of the PIN needle 33 by the existing measuring device, it is impossible to continuously measure the height of multiple PIN needles 33, resulting in low measurement efficiency. By inserting multiple PIN needles 33 into the needle holes 15 in sequence, the two groups of limiting plates 32 limit the PIN needles 33, so that the PIN needles 33 are in a vertical state. Then, through the operation of the hydraulic cylinder 23, the hydraulic rod 24 drives the pressing plate 27 to move vertically downward, and the pressing plate 27 drives the moving block 26 to move vertically downward in the moving groove 25. Then, when the moving block 26 moves to the lowest end of the moving groove 25, at this time, the pressing plate 27 presses all the PIN needles 33 downward, and the PIN needles 33 move vertically downward in the needle holes 15. The PIN needles 33 press the lifting rod 19 downward, and the lifting rod 19 presses the lifting plate 17 downward. The lifting plate 17 moves downward in the annular groove 16;

[0020] After that, the infrared rangefinder 9 operates. The principle of the infrared rangefinder 9 is that when the infrared generator 10 emits an infrared beam vertically upward, the infrared beam will irradiate on the lifting plate 17 and be reflected, and the infrared receiver 11 will receive the reflected infrared light. The infrared receiver 11 calculates the time difference between the emission and reception of the infrared light. At the same time, since the propagation speed of the infrared light in a vacuum is known, the distance from the lifting plate 17 to the infrared rangefinder 9 can be calculated according to the propagation time of the infrared light and the light speed;

[0021] The infrared rangefinder 9 sends an electrical signal to the control panel 3. The control panel 3 obtains the distance value from the lifting plate 17 to the infrared rangefinder 9. Since the distance value between the infrared rangefinder 9 and the pressing plate 27 is a first fixed value, and the total height value of the lifting plate 17 and the lifting rod 19 is a second fixed value, the height value of the PIN pin 33 can be calculated by subtracting the second fixed value from the first fixed value and then subtracting the measured distance value.

[0022] The control panel 3 controls the operation of the stepping motor 6 to drive the lead screw 7 to rotate. The lead screw 7 drives the guide block 8 thereon to move horizontally. The guide block 8 drives the infrared rangefinder 9 to move horizontally. The distance between adjacent two pin holes 15 is a fixed distance. The control panel 3 controls the infrared rangefinder 9 to intermittently move a fixed distance, so that the infrared rangefinder 9 successively moves to directly below each pin hole 15, and measures the distance value from the lifting plate 17 in each pin hole 15 to the infrared rangefinder 9, obtaining the height value of each PIN pin 33. This structure can continuously measure the heights of multiple PIN pins 33, which is beneficial to improving the efficiency of height measurement.

[0023] Please refer to Figure 4 As shown, symmetric sliding grooves 28 are formed in the inner wall of the pin hole 15. A sliding block 29 is assembled in the sliding groove 28. A first spring 30 is installed between the inner wall of the sliding block 29 and the inner wall of the sliding groove 28. Symmetric arc grooves 31 are formed in the inner wall of the pin hole 15. A limiting plate 32 is assembled in the arc groove 31. The limiting plate 32 is fixedly connected to the sliding block 29. During operation, in the process of measuring the height of the PIN pin 33 by the existing measuring device, the PIN pins 33 with different diameters cannot be limited, so the height of the PIN pins 33 with different diameters cannot be measured, resulting in poor adaptability of the device. By inserting the PIN pin 33 into the pin hole 15, the PIN pin 33 moves between the two limiting plates 32. Under the action of the first spring 30, the first spring 30 pushes the sliding block 29 to move towards the central axis. The sliding block 29 pushes the limiting plate 32 to move towards the central axis. The limiting plate 32 is in contact with the side wall of the PIN pin 33. The two limiting plates 32 limit the PIN pin 33, making the PIN pin 33 in a vertical state. The two limiting plates 32 can limit the PIN pins 33 with different diameters. Therefore, the device can measure the heights of the PIN pins 33 with different diameters, which is beneficial to improving the adaptability of the device.

[0024] Working principle: During the process of measuring the height of the PIN pin 33, the existing measuring device cannot limit the PIN pins 33 with different diameters, so it is impossible to measure the height of the PIN pins 33 with different diameters, resulting in poor adaptability of the device. By inserting the PIN pin 33 into the pin hole 15, the PIN pin 33 moves between the two limiting plates 32. Under the action of the first spring 30, the first spring 30 pushes the sliding block 29 towards the central axis, the sliding block 29 pushes the limiting plate 32 towards the central axis, and the limiting plate 32 is in contact with the side wall of the PIN pin 33. The two limiting plates 32 limit the PIN pin 33, making the PIN pin 33 in a vertical state. The two limiting plates 32 can limit the PIN pins 33 with different diameters, so the device can measure the height of the PIN pins 33 with different diameters, which is beneficial to improving the adaptability of the device. During the process of measuring the height of the PIN pin 33, the existing measuring device cannot continuously measure the height of multiple PIN pins 33, resulting in low measurement efficiency. By sequentially inserting multiple PIN pins 33 into the pin hole 15, the two groups of limiting plates 32 limit the PIN pins 33, making the PIN pins 33 in a vertical state. Then, the hydraulic cylinder 23 operates, and the hydraulic rod 24 drives the pressing plate 27 to move vertically downward. The pressing plate 27 drives the moving block 26 to move vertically downward in the moving groove 25. Then, the moving block 26 moves to the lowest end of the moving groove 25. At this time, the pressing plate 27 presses all the PIN pins 33 downward. The PIN pins 33 move vertically downward in the pin hole 15, and the PIN pins 33 press the lifting rod 19 downward. The lifting rod 19 presses the lifting plate 17 downward, and the lifting plate 17 moves downward in the annular groove 16. Then, the infrared rangefinder 9 operates. The principle of the infrared rangefinder 9 is that when the infrared generator 10 emits an infrared beam vertically upward, the infrared beam will irradiate on the lifting plate 17 and be reflected. The infrared receiver 11 will receive the reflected infrared light. The infrared receiver 11 calculates the time difference from the emission to the reception of the infrared light. At the same time, since the propagation speed of the infrared light in a vacuum is known, the distance between the lifting plate 17 and the infrared rangefinder 9 can be calculated based on the propagation time of the infrared light and the light speed. The infrared rangefinder 9 sends an electrical signal to the control panel 3, and the control panel 3 obtains the distance value between the lifting plate 17 and the infrared rangefinder 9. Since the distance value between the infrared rangefinder 9 and the pressing plate 27 is a first fixed value, and at the same time, the total height value of the lifting plate 17 and the lifting rod 19 is a second fixed value, the height value of the PIN pin 33 can be calculated by subtracting the second fixed value and the measured distance value from the first fixed value.The operation of the stepping motor 6 is controlled through the control panel 3, driving the lead screw 7 to rotate. The lead screw 7 drives the guide block 8 thereon to move horizontally, and the guide block 8 drives the infrared rangefinder 9 to move horizontally. The distance between two adjacent pinholes 15 is a fixed distance. The control panel 3 controls the infrared rangefinder 9 to intermittently move a fixed distance, so that the infrared rangefinder 9 successively moves to directly below each pinhole 15, and measures the distance value from the lifting plate 17 in each pinhole 15 to the infrared rangefinder 9, obtaining the height value of each PIN pin 33. This structure can continuously measure the heights of multiple PIN pins 33, which is beneficial to improving the efficiency of height measurement.

[0025] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A PIN needle height measuring device, characterized in that: The invention comprises a base (1), a mounting frame (2) is mounted on the base (1), a control panel (3) is mounted on the side wall of the mounting frame (2), a guide plate (4) is mounted on the bottom plate of the mounting frame (2), a guide groove (5) is provided in the guide plate (4), a stepping motor (6) is mounted on the side wall of the guide plate (4) through a machine base, a screw rod (7) is mounted on the output shaft of the stepping motor (6), the screw rod (7) is rotatably mounted on the inner wall of the guide groove (5), a guide block (8) is mounted in the guide groove (5), an infrared rangefinder (9) is mounted on the guide block (8), and an infrared generator (10) is mounted on the infrared rangefinder (9). 10) and an infrared receiver (11), a fixing plate (12) is installed on the side wall of the mounting frame (2), a plate groove (13) is provided on the fixing plate (12), a placement plate (14) is installed on the inner wall of the plate groove (13), a plurality of groups of pinholes (15) are provided in the placement plate (14), an annular groove (16) is provided on the inner wall of the pinhole (15), a lifting plate (17) is installed in the annular groove (16), a second spring (18) is installed between the bottom side of the lifting plate (17) and the inner wall of the annular groove (16), a lifting rod (19) is installed on the lifting plate (17), and a PIN needle (33) is placed in the pinhole (15).

2. A PIN needle height measurement device according to claim 1, characterized in that: A connecting groove (20) is provided on the inner wall of the annular groove (16), a connecting block (21) is installed in the connecting groove (20), and the connecting block (21) is fixedly connected to the side wall of the lifting plate (17).

3. A PIN needle height measurement device according to claim 1, characterized in that: An assembly plate (22) is mounted on the side wall of the mounting frame (2), a hydraulic cylinder (23) is mounted on the assembly plate (22), and a hydraulic rod (24) is mounted on the hydraulic cylinder (23).

4. A PIN needle height measurement device according to claim 1, characterized in that: A moving groove (25) is provided on the side wall of the mounting frame (2), a moving block (26) is installed in the moving groove (25), a pressing plate (27) is installed on the moving block (26), and the pressing plate (27) is fixedly connected to the hydraulic rod (24).

5. A PIN needle height measurement device according to claim 1, characterized in that: A sliding groove (28) is symmetrically provided on the inner wall of the needle hole (15), a sliding block (29) is installed in the sliding groove (28), and a first spring (30) is installed between the inner wall of the sliding block (29) and the inner wall of the sliding groove (28).

6. A PIN needle height measurement device according to claim 1, characterized in that: An arc-shaped groove (31) is symmetrically provided on the inner wall of the needle hole (15), a limit plate (32) is installed in the arc-shaped groove (31), and the limit plate (32) is fixedly connected to the sliding block (29).

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