CN109374932B - Pin clamping device of capacitance detection system - Google Patents

Abstract

The present invention relates to a pin clamping device for a capacitance detection system, which relates to the field of detection and includes a base, an adjustment block and a drive mechanism. An adjustment groove with an upward opening is provided inside the base, and an adjustment groove outside the adjustment groove is provided. There is an adjustment mechanism on the side, an inner cavity is arranged inside the adjustment block, the adjustment block on one side of the adjustment groove is fixedly connected with the side wall of the adjustment groove, and the adjustment block on the other side of the adjustment groove is connected with the adjustment mechanism Fixed connection, the upper position inside the inner cavity is symmetrically provided with a clamping mechanism, the lower position inside the inner cavity is slidably connected with the linkage mechanism, the lower end position of the clamping mechanism is movably connected with one end of the linkage mechanism, the drive mechanism The upper end of the device is movably connected with the linkage mechanism. The device can adapt to pins of different lengths and diameters when measuring the capacitance value of the capacitor. It does not require the measuring personnel to fix and loosen the capacitor by hand, which improves the measurement efficiency and avoids the need for human hands to lead the capacitor with the capacitor. Measurement error after foot contact.

Description

A pin clamping device for a capacitance detection system

technical field

The invention belongs to the field of detection, and in particular relates to a pin clamping device of a capacitance detection system.

Background technique

The capacitance value of a capacitor is a physical quantity that expresses the ability of the capacitor to hold charge. During the production process of the capacitor, the quality personnel of the production line will generally check the capacitance value parameter of the capacitor at a certain frequency. After the capacitor is cooled by the high temperature test, it is also necessary to measure its capacitance value to judge whether the capacitor passes the high temperature test.

In the prior art, when measuring the capacitance value of bulk capacitors, the measurement personnel generally fix the pins of the capacitors with the input end of the measuring instrument by hand, and then perform the measurement. This method requires constant hand fixation, and then It takes a lot of time and energy to release it by hand, and the efficiency is not high. In addition, human hands generally have static electricity and pollutants, which are prone to measurement errors after contact with the capacitor pins.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a pin clamping device of a capacitance detection system, which is dedicated to solving all or one of the problems in the background art.

In order to solve the above-mentioned technical problems, the technical solution adopted in the present invention is: a pin clamping device of a capacitance detection system, comprising a base, an adjustment block and a driving mechanism, and an adjustment groove with an upward opening is arranged inside the base, The upper surface of the base is provided with a button, the outer side of the adjustment slot is provided with an adjustment mechanism, the bottom of the adjustment slot is provided with a rectangular through slot, the adjustment block is slidably connected with the adjustment slot, and the inside of the adjustment block is provided with an inner cavity , the adjusting block on one side of the adjusting groove is fixedly connected with the side wall of the adjusting groove, the adjusting block on the other side inside the adjusting groove is fixedly connected with the adjusting mechanism, and the top of the inner cavity is provided with pins for capacitors For the inserted jack, the upper position inside the inner cavity is symmetrically provided with a clamping mechanism, the lower position inside the inner cavity is slidably connected with the linkage mechanism, the lower end position of the clamping mechanism is movably connected with one end of the linkage mechanism, and the driving mechanism Located below the inner cavity, the upper end of the driving mechanism is movably connected with the linkage mechanism, the lower end of the driving mechanism is slidably connected with the rectangular through groove, and the linkage mechanism is electrically connected with the button and the clamping mechanism.

Further, the clamping mechanism includes a conductive end and a rotating column, the rotating column is symmetrically arranged at a position close to the upper part of the inner cavity, an annular guide groove is arranged in the middle of the rotating column, and the rotating column is provided with an annular guide groove. A buffer cavity is provided in the middle of the top end, the position of the rotating column close to the bottom end is rotatably connected with the rotating shaft, the bottom end face of the conductive end is provided with a T-shaped end, and the T-shaped end is slidably connected with the buffer cavity, and the buffer cavity There is a pressure sensor at the bottom of the pressure sensor, the force end surface of the pressure sensor is fixedly connected to one end of the first spring, the other end of the first spring is fixedly connected to the end surface of the T-shaped end, and the two ends of the rotating shaft are connected to the inner The front and rear side walls of the cavity are fixedly connected, the annular guide groove is slidably connected with the annular guide column, the annular guide column is sleeved with a tension spring, one end of the tension spring is fixedly connected with the side wall of the inner cavity, and the other end of the tension spring is fixedly connected. One end is fixedly connected to the outer surface of the rotating column, the conductive terminal inside the adjustment block on the left side of the adjustment groove is electrically connected to the positive pole of the power supply, and the conductive terminal inside the adjustment block on the right side of the adjustment groove is electrically connected to the negative pole of the power supply. connect.

Further, the linkage mechanism includes a driving block, a locking rod and a traction rope, a sliding hole is provided in the middle of the driving block, side plates are symmetrically provided on the front and rear sides of the left and right ends of the driving block, and a lower end surface of the driving block is symmetrically provided. There is a second spring, fixed pulleys are symmetrically arranged on the left and right sides of the lower position of the driving block, cavities are symmetrically arranged on the left and right sides outside the sliding hole, and the side plates slide with the side grooves arranged on the front and rear side walls of the inner cavity. One end of the second spring is fixedly connected to the lower end surface of the drive block, the other end of the second spring is fixedly connected to the bottom of the inner cavity, and the two ends of the rotating shaft of the fixed pulley are fixedly connected to the front and rear side walls of the inner cavity. , one end of the traction rope is hinged with the side end surface of the drive block, the other end of the traction rope passes through the fixed pulley and is hinged with the outer surface of the rotating column, the bottom end of the locking rod is slidably connected with the cavity, and the locking rod The front end of the locking rod is movably connected with the driving mechanism, the bottom end surface of the locking rod is fixedly connected with one end of the third spring, the other end of the third spring is fixedly connected with the bottom of the cavity, and the bottom of the cavity is fixedly connected with the electromagnet , the electromagnet is electrically connected with the pressure sensor.

Further, the drive mechanism includes a sliding rod, a threaded rod and an adjusting screw, a sliding cavity is provided directly below the inner cavity, and wing plate grooves are symmetrically provided on the left and right sides of the sliding cavity, and the interior of the sliding rod is provided with a sliding cavity. The lower position of the sliding rod is provided with a threaded hole with a downward opening, and the upper position inside the sliding rod is provided with a threaded through hole with an upward opening, and the threaded hole is communicated with the threaded through hole. There is a locking groove, the sliding rod is slidably connected with the sliding hole, the locking groove is movably connected with the locking rod, the left and right sides of the bottom end of the sliding rod are symmetrically provided with wings, and the wings are slidably connected with the wing groove, so The part of the sliding rod located in the sliding cavity is covered with a fourth spring, the upper end of the fourth spring is fixedly connected with the upper side wall of the sliding cavity, the lower end of the fourth spring is fixedly connected with the upper end surface of the wing plate, and the adjusting screw is connected to the upper end surface of the wing plate. The threaded hole is threadedly connected, the lower end of the adjusting screw passes through the rectangular through groove and the lower end of the adjusting screw is slidably connected with the rectangular through groove, the central axis of the adjusting screw is provided with a circular through hole, and the threaded rod is threadedly connected with the threaded through hole, The upper end of the threaded rod is fixedly connected with the support table for supporting the capacitor pins, and the lower end of the threaded rod is slidably connected with the circular through hole.

Further, the adjustment mechanism includes an adjustment rod and a screw rod, an adjustment cavity is provided at the right position outside the adjustment groove, and rectangular plates are symmetrically arranged on the front and rear side walls of the right adjustment block inside the adjustment groove. The front and rear side walls of the groove are provided with a rectangular groove slidingly connected with a rectangular plate, the rectangular plate is fixedly connected with the adjusting block, the interior of the rectangular plate is provided with a threaded hole, the screw rod is threadedly connected with the screw hole, and the left end of the screw rod is connected to the threaded hole. The left side wall of the rectangular groove is connected by a bearing, the right end of the screw rod passes through the right side wall of the rectangular groove and is connected with the driven wheel key, the right end of the adjusting rod is located on the right side of the base, and the right end of the adjusting rod passes through the adjusting cavity. The left and right side walls, the adjusting rod and the left and right side walls of the adjusting cavity are connected by bearings, and the part of the adjusting rod inside the adjusting cavity is connected with the driving wheel key, and the driving wheel is engaged with the driven wheel.

Further, the circle center of the annular guide column and the circle center of the annular guide groove are both coincident with the circle center of the rotating shaft.

Further, the central axis of the sliding hole coincides with the central axis of the socket.

Further, the upper surface of the support table is provided with a rubber layer.

Further, a scale is provided on the upper surface of the base, the scale is parallel to the upper edge of the opening of the adjustment groove, and a pointer is provided on the side of the adjustment block on the right side of the adjustment groove facing the scale.

Further, the pointer is fixedly connected to the center position of the corresponding adjustment block close to the upper surface, and the connection line between the zero scale line of the scale and the center of the socket on the upper end surface of the other adjustment block is parallel to the center of the base. left edge.

The beneficial effects of the present invention are: using the pin clamping device of the capacitance detection system of the present invention, before measuring the capacitance value, the center-to-center distance between the two jacks is adjusted by the adjusting mechanism, so that the center-to-center distance is the same as that of the pins of the capacitor. The distance is equal, and then the driving mechanism is appropriately adjusted according to the length of the pin, so that when the pin is inserted into the jack, the driving mechanism can normally drive the linkage mechanism. When measuring the capacitance value, after the capacitor is inserted into the jack, the linkage mechanism is driven by the driving mechanism. The device moves, and then drives the driving mechanism to be in close contact with the pins, so that the measurement power supply is connected to the capacitor, and the measurement is completed. Efficiency, avoiding the measurement error caused by the human hand in contact with the capacitor pin.

Description of drawings

The following is a brief description of the content expressed in the drawings of this specification and the symbols in the drawings:

1 is a top view of an embodiment of the present invention;

Figure 2 is a top cross-sectional view of an embodiment of the present invention;

Fig. 3 is a sectional view along line A-A in Fig. 2;

4 is a side cross-sectional view of an adjustment block according to an embodiment of the present invention;

Fig. 5 is the structural representation of the clamping mechanism in Fig. 4;

Fig. 6 is the structural representation of the fixing mechanism in Fig. 4;

Fig. 7 is the top view of the driving block in Fig. 5;

FIG. 8 is a schematic structural diagram of the driving mechanism in FIG. 4 .

Among them, 1-base, 2-adjustment groove, 3-adjustment block, 4-socket, 5-clamping mechanism, 6-linkage mechanism, 7-drive mechanism, 8-adjustment mechanism, 9-scale, 10- Pointer, 11-rectangular through slot, 12-inner cavity, 13-button, 14-test sample, 51-conductive end, 52-buffer cavity, 53-first spring, 54-pressure sensor, 55-rotating column, 56 -Annular guide groove, 57-ring guiding post, 58-tension spring, 59-rotating shaft, 61-driving block, 62-fixed pulley, 63-second spring, 64-sliding hole, 65-side groove, 66-lock Tightening rod, 67-third spring, 68-electromagnet, 69-cavity, 610-traction rope, 611-side plate, 71-slide rod, 72-threaded rod, 73-threaded through hole, 74-support table, 75-Lock groove, 76-Fourth spring, 77-Wing plate, 78-Sliding cavity, 79-Wing plate groove, 710-Adjusting screw, 711-Circular through hole, 712-Threaded hole, 81-Adjusting rod, 82-adjustment cavity, 83-drive wheel, 85-screw rod, 86-rectangular plate, 87-threaded hole, 88-rectangular groove, 89-limiting plate.

Detailed ways

The following describes the embodiments of the present invention, such as the shape and structure of each component involved, the mutual position and connection relationship between each part, the function and working principle of each part, the manufacturing process and the operation and use method. etc., further detailed descriptions are provided to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solutions of the present invention.

As shown in Figures 1 to 8, a pin clamping device of a capacitance detection system includes a base 1, an adjustment block 3 and a drive mechanism 7. The interior of the base 1 is provided with an adjustment groove 2 with an upward opening, The upper surface of the base 1 is provided with a button 13, the outer side of the adjustment groove 2 is provided with an adjustment mechanism 8, the bottom of the adjustment groove 2 is provided with a rectangular through groove 11, and the adjustment block 3 is slidably connected with the adjustment groove 2, The inside of the adjustment block 3 is provided with an inner cavity 12 , the adjustment block 3 on the inner side of the adjustment slot 2 is fixedly connected with the side wall of the adjustment slot 2 , and the adjustment block 3 on the other side of the adjustment slot 2 is connected with the adjustment mechanism 8 Fixed connection, the top of the inner cavity 12 is provided with a socket 4 for the insertion of capacitor pins, the upper position inside the inner cavity 12 is symmetrically provided with a clamping mechanism 5, and the lower position inside the inner cavity 12 slides with the linkage mechanism 6 The lower end of the clamping mechanism 5 is movably connected with one end of the linkage mechanism 6, the driving mechanism 7 is located at the lower position of the inner cavity 12, the upper end of the driving mechanism 7 is movably connected with the linkage mechanism 6, and the lower end of the driving mechanism 7 In sliding connection with the rectangular through slot 11 , the linkage mechanism 6 is electrically connected with the button 13 and the clamping mechanism 5 .

In this embodiment, the clamping mechanism 5 includes a conductive end 51 and a rotating column 55 , the rotating column 55 is symmetrically arranged in the inner cavity 12 near the upper position, and the middle position of the rotating column 55 is An annular guide groove 56 is provided, a buffer cavity 52 is provided at the middle position of the top of the rotating column 55, and the position of the rotating column 55 close to the bottom end is rotatably connected with the rotating shaft 59. The bottom end face of the conductive end 51 is provided with a T-shaped end, so The T-shaped end is slidably connected to the buffer cavity 52 , the bottom of the buffer cavity 52 is provided with a pressure sensor 54 , and the force end face of the pressure sensor 54 is fixedly connected to one end of the first spring 53 , and the first spring 53 The other end of the shaft 59 is fixedly connected to the end face of the T-shaped end, the two ends of the rotating shaft 59 are fixedly connected to the front and rear side walls of the inner cavity 12, the annular guide groove 56 is slidably connected to the annular guide column 57, and the annular guide column 57 is covered with a tension spring 58, one end of the tension spring 58 is fixedly connected to the side wall of the inner cavity 12, the other end of the tension spring 58 is fixedly connected to the outer surface of the rotating column 55, and the inner left side of the adjustment slot 2 is fixedly connected. The conductive terminal 51 inside the adjustment block 3 is electrically connected to the positive pole of the power supply, and the conductive terminal 51 inside the adjustment block 3 on the right side of the adjustment slot 2 is electrically connected to the negative pole of the power supply, and the pin of the capacitor is gradually inserted through the jack 4 When entering the inner cavity 12, the pins need to be clamped and fixed gradually, and after the pins are completely inserted into the inner cavity 12, the pins are completely fixed and connected to the power supply for measurement. When the capacitor pins are completely inserted into the inner cavity 12, driven by the linkage mechanism 6, the conductive terminals 51 in the clamping mechanism 5 are in close contact with the pins of the capacitor through the clamping mechanism 5, and the connection with the measurement power supply is realized. Electrical connection to complete the process of measuring the capacitance value.

In this embodiment, the linkage mechanism 6 includes a driving block 61 , a locking rod 66 and a traction rope 610 , a sliding hole 64 is provided in the middle of the driving block 61 , and the front and rear sides of the left and right ends of the driving block 61 are symmetrically provided with The side plate 611, the lower end surface of the driving block 61 is symmetrically provided with a second spring 63, the left and right sides of the lower position of the driving block 61 are symmetrically provided with fixed pulleys 62, the outside of the sliding hole 64 is symmetrically provided with cavities 69 on the left and right sides, The side plate 611 is slidably connected to the side grooves 65 provided on the front and rear side walls of the inner cavity 12 , one end of the second spring 63 is fixedly connected to the lower end surface of the driving block 61 , and the other end of the second spring 63 is connected to the inner cavity. The bottom of 12 is fixedly connected, the two ends of the rotating shaft of the fixed pulley 62 are fixedly connected to the front and rear side walls of the inner cavity 12, one end of the traction rope 610 is hinged with the side end surface of the driving block 61, and the other end of the traction rope The bottom end of the locking rod 66 is slidably connected with the cavity 69, the front end of the locking rod 66 is movably connected with the driving mechanism 7, and the bottom end surface of the locking rod 66 One end of the third spring 67 is fixedly connected, the other end of the third spring 67 is fixedly connected to the bottom of the cavity 69, the bottom of the cavity 69 is fixedly connected to the electromagnet 68, and the electromagnet 68 is connected to the pressure sensor 54 Electrical connections. Since the clamping mechanism 5 needs to obtain the power for fixing and the capacitor pins from the outside, the only power of the device is the force that pushes the driving mechanism 7 to move downward after the capacitor pins are inserted into the inner cavity 12. When the pin is inserted into the inner cavity 12, the locking rod 66 of the linkage mechanism 6 is located inside the driving mechanism 7 and is in the same motion state as the driving mechanism 7. At this time, on the one hand, it provides the clamping mechanism 5 with a force for fixing the capacitor pins, and on the other hand On the one hand, the second spring 63 is charged with energy. After the capacitance measurement is completed, the linkage mechanism 6 is separated from the drive mechanism 7. Under the action of the spring force stored by the second spring 63 in the linkage mechanism 6, the fixing mechanism 5 is released from the capacitor pin. . The function of the linkage mechanism 6 is mainly to provide the clamping mechanism 5 with the power to clamp the pins and release the pins.

In this embodiment, the driving mechanism 7 includes a sliding rod 71 , a threaded rod 72 and an adjusting screw 710 , a sliding cavity 78 is provided directly below the inner cavity 12 , and the left and right sides of the sliding cavity 78 are symmetrically arranged. There is a wing plate groove 79, a threaded hole 712 with a downward opening is formed at the lower position inside the sliding rod 71, and a threaded through hole 73 with an upward opening is formed at the upper position inside the sliding rod 71, and the threaded hole 712 is connected with the threaded hole 712. The hole 73 is connected, and the sliding rod 71 is symmetrically provided with a locking groove 75 on the left and right near the upper end surface. The sliding rod 71 is slidingly connected with the sliding hole 64, and the locking groove 75 is movably connected with the locking rod 66. The left and right sides of the bottom end of 71 are symmetrically provided with wing plates 77, the wing plates 77 are slidably connected with the wing plate grooves 79, and the part of the sliding rod 71 located in the sliding cavity 78 is covered with a fourth spring 76, and the fourth spring 76 The upper end of the spring 76 is fixedly connected to the upper side wall of the sliding cavity 78, the lower end of the fourth spring 76 is fixedly connected to the upper end surface of the wing plate 77, the adjusting screw 710 is threadedly connected to the threaded hole 712, and the lower end of the adjusting screw 710 passes through the rectangular hole. The groove 11 and the lower end of the adjusting screw 710 are slidably connected with the rectangular through groove 11, the central axis of the adjusting screw 710 is provided with a circular through hole 711, the threaded rod 72 is threadedly connected with the threaded through hole 73, and the upper end of the threaded rod 72 is The support table 74 for supporting the capacitor pins is fixedly connected, and the lower end of the threaded rod 72 is slidably connected with the circular through hole 711. In addition, due to the different lengths of the capacitor pins, when the capacitor is inserted into the cavity 12, it needs to be removed from the insertion process. Obtain the driving force of the driving linkage mechanism 6. If it is necessary to obtain sufficient driving force, the device for obtaining the driving force should be adapted to the length of the pins of the capacitor. Through the driving mechanism 7, it can be a linkage mechanism on the basis of adapting to different pin lengths. 6 provides enough driving force.

In this embodiment, the adjusting mechanism 8 includes an adjusting rod 81 and a screw rod 85 , an adjusting cavity 82 is provided at the right position outside the adjusting groove 2 , and the front and rear sides of the right adjusting block 3 inside the adjusting groove 2 The wall is symmetrically provided with a rectangular plate 86, the front and rear side walls of the adjustment groove 2 are provided with a rectangular groove 88 that is slidably connected with the rectangular plate 86, the rectangular plate 86 is fixedly connected with the adjustment block 3, and the interior of the rectangular plate 86 is provided with threads Hole 87, the screw rod 85 is threadedly connected with the threaded hole 87, the left end of the screw rod 85 is connected with the left side wall of the rectangular groove 88 through a bearing, and the right end of the screw rod 85 passes through the right side wall of the rectangular groove 88 and is connected with the driven wheel. The right end of the adjustment rod 81 is located on the right side of the base 1, the right end of the adjustment rod 81 passes through the left and right side walls of the adjustment cavity 82, and the adjustment rod 81 and the left and right side walls of the adjustment cavity 82 are connected by bearings. The part of the rod 81 located inside the adjustment cavity 82 is keyed to the driving wheel 83, and the driving wheel 83 is engaged with the driven wheel. Due to the difference in the distance between the capacitor pins, the adjustment mechanism is used to adapt to the change of the distance between the capacitor pins of different types, so that the entire clamp can be adjusted. The handheld device can measure a variety of different types of capacitance.

In this embodiment, the center of the annular guide column 57 and the center of the annular guide groove 56 are both coincident with the center of the rotating shaft 59, so that the rotating column 55 normally slides on the annular guiding column 57, and the annular guiding column 57 is opposite to the rotating column 55. Play the role of positioning guide support.

In this embodiment, the central axis of the sliding hole 64 coincides with the central axis of the insertion hole 4 , so that the capacitor pins can be smoothly inserted into the inner cavity 12 .

In this embodiment, the upper surface of the support table 74 is provided with a rubber layer. Since the top of the capacitor pin contacts with the support table 74 after being inserted into the cavity 12, the rubber layer protects the top of the capacitor pin. .

In this embodiment, a scale 9 is provided on the upper surface of the base 1, the scale 9 is parallel to the upper edge of the opening of the adjustment groove 2, and the adjustment block 3 on the right side of the adjustment groove 2 faces the scale A pointer 10 is provided on the side of the ruler 9, and the distance between the two adjustment blocks 3 is conveniently adjusted through the scale 9 and the pointer 10, so that the distance between the adjustment blocks 3 is adapted to the spacing of the capacitor pins.

In addition, the pointer 10 is fixedly connected to the center position of the corresponding adjustment block 3 near the upper surface, and the zero-scale line of the scale 9 is parallel to the connection line between the center of the hole 4 on the upper end surface of the other adjustment block 3 On the left edge of the base 1, it is used to facilitate the measurement personnel to observe the distance when adjusting the distance between the adjustment blocks 3.

Working process and principle: Before measuring the capacitance value, first adjust the center distance of the jack 4 according to the pin spacing of the test sample 14. The adjustment process is: manually rotate the adjusting rod 81, and the adjusting rod 81 drives the driven wheel through the driving wheel 83. Rotate, and then drive the lead screw 85 to rotate. Since the lead screw is threadedly connected to the threaded hole 87, the corresponding adjustment block 3 is driven by the rectangular plate 86 to move on the rectangular groove 88. At this time, observe the position of the pointer 10 on the scale 9. , when the scale on the scale 9 pointed by the pointer 10 is equal to the distance between the pins of the test sample 14 , stop rotating the adjusting rod 81 . After the test sample 14 is inserted into the cavity 12 through the insertion hole 4, the pins of the test sample 14 may be inserted into the cavity 12 when the pins of the test sample 14 are completely inserted into the cavity 12. When the pin of the test sample 14 contacts the support table 74, the adjusting screw 710 drives the sliding rod 71 to overcome the elastic force of the fourth spring 76 to move downward in the sliding cavity 78, while the flap 77 is in the flap groove 79 Move to ensure that the sliding rod 71 does not rotate. During the downward movement of the sliding rod 71, since the locking rod 66 is located inside the locking groove 75, the sliding rod 77 drives the driving block 61 to overcome the thrust of the second spring 63 along the The side groove 65 moves to the lower part of the inner cavity 12. Since the driving block 61 moves downward, the traction rope 610 will tend to be in a relaxed state. The ring-shaped guide post 57 rotates. When the conductive end 51 starts to clamp the pin, the conductive end 51 will compress the first spring 53 . At this time, the pressure value of the pressure sensor 54 will increase with the compression of the first spring 53 . When the pin is completely inserted into the inner cavity 12, the pressure value felt by the pressure sensor 54 is inconvenient to maintain. When measuring the capacitance, in order to ensure that the conductive terminal 51 is in close contact with the pin to ensure the stability of power supply, and at the same time It is necessary to take into account that the pressure of the conductive end 51 on the pins cannot be too large, and the pressure will cause damage to the pins. Therefore, the pressure sensor 54 is provided with a threshold value. After the detection sample 14 is completely inserted into the cavity 12, if the pressure sensor 54 The sensed threshold value does not exceed the pressure threshold value, indicating that the conductive end 51 has insufficient pressure on the pins of the test sample 14. At this time, the adjusting screw 710 is twisted to drive the sliding rod 71 to move downward, and then it will be driven by the linkage mechanism 6. The conductive tip applies pressure to the pins of the detection sample 14. When the applied pressure reaches the threshold value of the pressure sensor 54, the adjustment screw 710 is stopped. If the threshold value sensed by the pressure sensor 54 exceeds the pressure threshold, the adjustment screw 710 is reversed until The pressure felt by the pressure sensor 54 reaches the threshold value; when the pins of the detection sample 14 are completely inserted into the inner cavity 12, the pins still cannot touch the support table 74. At this time, the threaded rod 72 is first rotated to make the threaded rod 72 drives the support table 74 to touch the pins. At this time, the linkage mechanism 6 still cannot move downward, so that the clamping mechanism 5 cannot form a clamping and fixing effect on the pins. At this time, the detection sample 14 is taken out, and the screw thread is used again. The rod 72 makes the support table continue to rise upward by an appropriate distance, and then inserts the test sample 14 into the inner cavity 12 again, so that the clamping mechanism 5 forms a clamping effect on the pins, and then adjusts the pressure of the pressure sensor 54 by adjusting the screw 710. . After the adjustment is completed, insert the capacitor pin to be measured into the inner cavity 12 through the jack 4 for measurement, when the measurement is completed, press the button 14, at this time the electromagnet 68 is energized to generate a magnetic force, which generates a magnetic force on the locking rod 66. The suction force makes it move toward the direction close to the electromagnet 68 against the elastic force of the third spring 67. When the locking lever 66 is completely separated from the locking groove 75, the driving block 61 will be driven inward by the pulling force of the second spring 63. The upper part of the cavity 12 moves, so that the conductive terminal 51 releases the pins of the capacitor. At this time, the button 13 is released and the measured capacitor is taken out. When the button 13 is released, the electromagnet 68 is de-energized, and the locking lever 66 is in The third spring 67 is in contact with the surface of the sliding rod 71. When the capacitor is taken out, the sliding rod 71 moves upward under the elastic force of the fourth spring 76. During the movement, when the locking groove 75 and the locking rod 66 When facing, the locking rod 66 moves into the locking groove 75 under the action of the third spring 67, and after completion, the next capacitor is measured.

Based on the above, using the pin clamping device of a capacitance detection system of the present invention, before measuring the capacitance value, the center-to-center distance between the two jacks is adjusted by the adjustment mechanism, so that the center-to-center distance is equal to the distance between the pins of the capacitor, Then adjust the drive mechanism appropriately according to the length of the pin, so that when the pin is inserted into the jack, the drive mechanism can normally drive the linkage mechanism. When measuring the capacitance value, after the capacitor is inserted into the jack, the linkage mechanism is driven by the drive mechanism to move, and then Drive the drive mechanism to be in close contact with the pins, so that the measurement power supply is connected to the capacitor, and the measurement is completed. The device can adapt to pins of different lengths and diameters, and does not require the measurement personnel to fix and loosen the capacitor by hand, which improves the measurement efficiency and avoids the need for The measurement error caused by the human hand in contact with the capacitor pin is eliminated.

The present invention has been exemplarily described above, and it is obvious that the specific implementation of the present invention is not limited by the above-mentioned manner, as long as various insubstantial improvements made by the method concept and technical solution of the present invention are adopted, or the present invention is not improved without improvement. It is within the protection scope of the present invention that the ideas and technical solutions of the invention are directly applied to other occasions. The protection scope of the present invention should be based on the protection scope defined by the claims.

Claims (9)

1. The utility model provides a pin clamping device of electric capacity detecting system which characterized in that: comprises a base (1), an adjusting block (3) and a driving mechanism (7), wherein an adjusting groove (2) with an upward opening is formed in the base (1), a button (13) is arranged on the upper surface of the base (1), an adjusting mechanism (8) is arranged on one side of the outside of the adjusting groove (2), a rectangular through groove (11) is formed in the bottom of the adjusting groove (2), the adjusting block (3) is in sliding connection with the adjusting groove (2), an inner cavity (12) is formed in the adjusting block (3), the adjusting block (3) on one side of the inside of the adjusting groove (2) is fixedly connected with the side wall of the adjusting groove (2), the adjusting block (3) on the other side of the inside of the adjusting groove (2) is fixedly connected with the adjusting mechanism (8), a jack (4) for inserting a capacitor pin is formed in the top of the inner cavity (12), and a clamping mechanism (5) is symmetrically arranged above the inside of the inner cavity (12, the lower position inside the inner cavity (12) is connected with the linkage mechanism (6) in a sliding manner, the lower end position of the clamping mechanism (5) is movably connected with one end of the linkage mechanism (6), the driving mechanism (7) is positioned at the lower position of the inner cavity (12), the upper end of the driving mechanism (7) is movably connected with the linkage mechanism (6), the lower end of the driving mechanism (7) is connected with the rectangular through groove (11) in a sliding manner, and the linkage mechanism (6) is electrically connected with the button (13) and the clamping mechanism (5);

the clamping mechanism (5) comprises a conductive end (51) and a rotating column (55), the inner cavity (12) is symmetrically provided with the rotating column (55) at a position close to the upper part, the middle position of the rotating column (55) is provided with an annular guide groove (56), the middle position of the top end of the rotating column (55) is provided with a buffer cavity (52), the position of the rotating column (55) close to the bottom end is rotatably connected with a rotating shaft (59), the bottom end face of the conductive end (51) is provided with a T-shaped end, the T-shaped end is slidably connected with the buffer cavity (52), the bottom of the buffer cavity (52) is provided with a pressure sensor (54), the stressed end face of the pressure sensor (54) is fixedly connected with one end of a first spring (53), the other end of the first spring (53) is fixedly connected with the end face of the T-shaped end, the two ends of the rotating shaft (59) are fixedly connected with the front and back side walls of, the annular guide groove (56) is connected with the annular guide column (57) in a sliding mode, a tension spring (58) is sleeved on the annular guide column (57), one end of the tension spring (58) is fixedly connected with the side wall of the inner cavity (12), the other end of the tension spring (58) is fixedly connected with the outer surface of the rotating column (55), a conductive end head (51) inside the adjusting block (3) on the left side inside the adjusting groove (2) is electrically connected with the positive electrode of a power supply, and a conductive end head (51) inside the adjusting block (3) on the right side inside the adjusting groove (2) is electrically connected with the negative electrode of the power supply.

2. The pin holder assembly of claim 1, wherein: the linkage mechanism (6) comprises a driving block (61), a locking rod (66) and a traction rope (610), wherein a sliding hole (64) is formed in the middle position of the driving block (61), side plates (611) are symmetrically arranged on the front side and the rear side of the left end and the right end of the driving block (61), second springs (63) are symmetrically arranged on the lower end face of the driving block (61), fixed pulleys (62) are symmetrically arranged on the left side and the right side of the lower position of the driving block (61), cavities (69) are symmetrically arranged on the left side and the right side of the outer portion of the sliding hole (64), the side plates (611) are slidably connected with side grooves (65) formed in the front side wall and the rear side wall of an inner cavity (12), one end of each second spring (63) is fixedly connected with the lower end face of the driving block (61), the other end of each second spring (63) is fixedly connected with the bottom of the inner cavity (12), and two ends of a, one end of the traction rope (610) is hinged to the side end face of the driving block (61), the other end of the traction rope (610) penetrates through the fixed pulley (62) and is hinged to the outer surface of the rotating column (55), the bottom end of the locking rod (66) is in sliding connection with the cavity (69), the front end of the locking rod (66) is movably connected with the driving mechanism (7), the bottom end face of the locking rod (66) is fixedly connected with one end of the third spring (67), the other end of the third spring (67) is fixedly connected with the bottom of the cavity (69), the bottom of the cavity (69) is fixedly connected with the electromagnet (68), and the electromagnet (68) is electrically connected with the pressure sensor (54).

3. The pin holder assembly of claim 2, wherein: actuating mechanism (7) includes slide bar (71), threaded rod (72) and adjusting screw (710), be equipped with slide chamber (78) under inner chamber (12), the left and right sides symmetry in slide chamber (78) is equipped with pterygoid lamina groove (79), the inside below position of slide bar (71) is equipped with screw hole (712) that the opening is decurrent, and the inside top position of slide bar (71) is equipped with ascending screw through-hole of opening (73), screw hole (712) are linked together with screw through-hole (73), the bilateral symmetry that slide bar (71) are close to the up end position is equipped with locking groove (75), slide bar (71) and slide hole (64) sliding connection, locking groove (75) and check lock lever (66) swing joint, the left and right sides symmetry of slide bar (71) bottom is equipped with pterygoid lamina (77), pterygoid lamina (77) and pterygoid lamina groove (79) sliding connection, the utility model discloses a capacitor pin's structure, including slide bar (71), slide bar (78), the partial cover that slide bar (71) is located slide chamber (78) has fourth spring (76), the upper end of fourth spring (76) and the last lateral wall fixed connection in slide chamber (78), the lower extreme of fourth spring (76) and the up end fixed connection of pterygoid lamina (77), adjusting screw (710) and screw hole (712) threaded connection, the lower extreme of adjusting screw (710) passes rectangle through groove (11) and adjusting screw (710) the lower extreme and rectangle through groove (11) sliding connection, the axis position of adjusting screw (710) is equipped with circular through-hole (711), threaded rod (72) and screw hole (73) threaded connection, the upper end of threaded rod (72) and the brace table (74) fixed connection who is used for supporting capacitor pin, the lower extreme and circular through-hole (711) sliding connection of threaded rod (72).

4. The pin holder assembly of claim 1, wherein: the adjusting mechanism (8) comprises an adjusting rod (81) and a screw rod (85), an adjusting cavity (82) is arranged at the right side position outside the adjusting groove (2), rectangular plates (86) are symmetrically arranged on the front side wall and the rear side wall of an adjusting block (3) at the right side inside the adjusting groove (2), the front side wall and the rear side wall of the adjusting groove (2) are provided with rectangular grooves (88) which are in sliding connection with the rectangular plates (86), the rectangular plates (86) are fixedly connected with the adjusting block (3), threaded holes (87) are formed in the rectangular plates (86), the screw rod (85) is in threaded connection with the threaded holes (87), the left end of the screw rod (85) is connected with the left side wall of the rectangular grooves (88) through a bearing, the right end of the screw rod (85) penetrates through the right side wall of the rectangular grooves (88) and is connected with a driven wheel key, the right end of the adjusting rod (81) is positioned at the right side of the base (1), adjust pole (81) and adjust the left and right sides lateral wall in chamber (82) and pass through the bearing and be connected, adjust the part that pole (81) is located and adjust chamber (82) inside and drive wheel (83) key-type connection, drive wheel (83) and driven wheel meshing.

5. The pin holder assembly of claim 1, wherein: the circle center of the annular guide column (57) and the circle center of the annular guide groove (56) are coincided with the circle center of the rotating shaft (59).

6. The pin holder assembly of claim 2, wherein: the central axis of the sliding hole (64) is superposed with the central axis of the jack (4).

7. The pin holder assembly of claim 3, wherein: the upper surface of the support table is provided with a rubber layer.

8. The pin holder assembly of claim 1, wherein: the adjustable scale is characterized in that a graduated scale (9) is arranged on the upper surface of the base (1), the graduated scale (9) is parallel to the upper edge of the opening of the adjusting groove (2), and a pointer (10) is arranged on the adjusting block (3) on the right side in the adjusting groove (2) and faces the side face of the graduated scale (9).

9. The pin holder assembly of claim 8, wherein: the pointer (10) is fixedly connected to the center position, close to the upper surface, of the corresponding adjusting block (3), and a connecting line between a zero scale mark of the graduated scale (9) and the circle center of the jack (4) on the upper end face of the other adjusting block (3) is parallel to the left edge of the base (1).

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