Efficient spring impactor calibration device

Abstract

The utility model relates to an efficient spring impactor calibration device which comprises a bottom plate, a sliding set, a servo motor, a right-angle motor, a locking set, a conical head limiting piece, a tension sensor, a displacement sensor, a handheld controller, a vertical frame, a pendulum bob, a dial and an automatic clamp. The servo motor is used for driving a sliding piece of the sliding set to slide on the bottom plate, and the locking set is fixed to the sliding piece and used for locking the spring impactor. The automatic clamp is arranged on one side of the bottom plate, the right-angle motor is used for driving the automatic clamp to tightly hold or loosen an operation button of the spring impactor, a conical head limiting hole is formed in the surface of the conical head limiting piece, the tension sensor is connected with the conical head limiting piece, and the displacement sensor is arranged on the bottom plate. And the handheld controller is electrically connected with the tension sensor and the displacement sensor respectively. According to the scheme, the three calibration items of the release force, the hammerhead vertex indentation distance and the impact energy indication error of the spring impactor can be measured at the same time, the measurement accuracy of the spring impactor can be improved, and the calibration efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spring impactor calibration, in particular to a high-efficiency spring impactor calibration device. Background Art

[0002] Spring impactor is a test device used for electrical and electronic equipment and its accessories and similar equipment to impact in a specified direction, energy and number of times. The structure of the spring impactor is as follows: Figure 1 As shown, the reference numerals for the various components are as follows: 1 - release cone; 2 - release cone spring; 3 - release lever; 4 - release spring; 5 - release key; 6 - operating button; 7 - hammer lever; 8 - hammer spring; 9 - hammer. According to the "JJF 1475-2014 Spring Impactor Calibration Specification," the current calibration items for spring impactors include release force calibration, hammer head apex retraction distance calibration, and impact energy indication error calibration. These three items are measured using a working dynamometer, depth caliper, and impact energy calibration device, respectively.

[0003] Take the existing impact energy calibration device as an example, its structure is as follows Figure 2 and Figure 3 As shown, the reference numerals of the various components are as follows: 1-bearing; 2-pointer; 3-pendulum; 4-release base point; 5-release device; 6-dial; 7-impact point. This device can only calibrate the energy of the spring impactor and often requires manual operation.

[0004] Therefore, the current problems with the calibration device of the spring impactor are mainly the following:

[0005] ① Most spring impactors currently available on the market are manually triggered, with a relatively primitive structure, low automation, and low precision.

[0006] ②The spring impactor calibration device currently under study can only test one value. Utility Model Content

[0007] In order to solve the above problems in the prior art, the utility model provides a high-efficiency spring impactor calibration device, which can improve the calibration efficiency.

[0008] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include: an efficient spring impactor calibration device, including a base plate, a sliding group, a servo motor, a right-angle motor, a locking group, a cone head limiter, a tension sensor, a displacement sensor, a handheld controller, a stand, a pendulum, a dial and an automatic clamp;

[0009] The servo motor is used to drive the sliding member of the sliding group to slide on the bottom plate along its extension direction, and the locking group is fixed on the sliding member to lock the spring impactor;

[0010] The automatic clamp is arranged on one side of the base plate, the right-angle motor is used to drive the automatic clamp to clamp or release the operating button of the spring impactor, the stand is arranged on the other side of the base plate, the pendulum is rotatably connected to the stand, the bottom of the pendulum is provided with an impact point, the dial is arranged on one side of the stand, the pointer on the dial rotates with the rotation of the pendulum, the cone head limiter is arranged on the base plate and close to the stand, a cone head limiter hole is provided on the surface of the cone head limiter, the center of the limiter hole and the impact point are located on the same horizontal plane, the tension sensor is connected to the cone head limiter, and the displacement sensor is arranged on the base plate, when the spring impactor in the locking group abuts against the cone head limiter, the displacement sensor starts to detect the sliding distance of the sliding member;

[0011] The handheld controller is arranged on the other side of the stand, and the handheld controller is electrically connected to the tension sensor and the displacement sensor respectively.

[0012] As described above, the beneficial effects are as follows: the tension sensor and displacement sensor are used to calibrate the release force and hammer head apex indentation distance, respectively, while the pendulum and dial are used to calibrate the impact energy indication error. Therefore, this solution can simultaneously measure the three calibration items of a spring impactor: release force, hammer head apex indentation distance, and impact energy indication error. This significantly helps improve the measurement accuracy of spring impactors and has broad application prospects. It can improve the automation of the calibration process, shorten calibration time, and improve calibration efficiency.

[0013] Preferably, the sliding group is a screw slider mechanism, the base plate is provided with a slide rail that cooperates with the screw slider mechanism, the sliding part is a slider, the slider can slide on the slide rail, and the servo motor is fixed to one side end of the base plate and connected to the screw of the screw slider mechanism.

[0014] As mentioned above, the sliding group adopts a screw slider mechanism, which can facilitate the servo motor to control the spring impactor to move on the base plate.

[0015] Preferably, the automatic clamp comprises a clamp base, a locking block, a connecting plate, a spring and a screw;

[0016] One side of the clamp base is connected to the output shaft of the right-angle motor, and the other side of the clamp base is provided with an annular groove, and the middle part of the annular groove is provided with a screw hole, and the screw is fixedly connected to one side of the connecting disk, and the screw is screwed into the screw hole. The surface of the connecting disk is provided with a plurality of notches distributed in a central array, and the locking block is passed through the notch, and the inner wall of the notch is provided with a spring connected to the locking block, and the side of the locking block close to the clamp base is a wedge-shaped structure, and the outer wall of the wedge-shaped structure is abutted against the groove wall of the annular groove, and the end of the locking block away from the clamp base is an inwardly bent structure.

[0017] As described above, when the servo motor drives the spring impactor to move backward, the locking block is in an open state due to the action of the spring, and the operating button of the spring impactor is pushed into the locking block. At this time, the operating button is pressed against the surface of the connecting disk, and there is a certain friction. Since one side of the screw is subjected to the pressing force brought by the operating button to the connecting disk, when the right-angle motor drives the clamp base to rotate clockwise, the screw will gradually rotate closer to the clamp base. Since the outer wall of the wedge-shaped structure and the groove wall of the annular groove are always in a pressing state, as the wedge-shaped structure of the locking block moves toward the inside of the annular groove, the locking block can slowly hold the operating button of the spring impactor. Conversely, when the servo motor drives the spring impactor to move forward, the operating button of the spring impactor exerts a forward pulling force on the holding block. Since there is a certain friction between the operating button and the holding block, when the right-angle motor drives the clamp base to rotate counterclockwise, the screw will gradually rotate away from the clamp base, and the locking block can slowly loosen the operating button of the spring impactor.

[0018] Preferably, a roller is provided at one end of the locking block away from the clamp base.

[0019] As described above, it is possible to facilitate the operation button of the spring impactor to be pushed into and out of the locking block of the automatic clamp.

[0020] Preferably, the surface of the connection plate has four notches distributed in a central array.

[0021] As described above, four locking blocks can be arranged at the notches, thereby enabling the operation button of the spring impactor to be tightened and loosened relatively well.

[0022] Preferably, the locking group includes a locking base and a locking cover;

[0023] One end of the locking cover is connected to one end of the top surface of the locking base through a spring hinge, and the inner surface shape of the locking cover and the top surface shape of the locking base are both arc-shaped.

[0024] As described above, the inner surface shape of the locking cover and the top surface shape of the locking base are both designed to be arc-shaped, which can match the overall shape of the spring impactor, ensuring that the spring impactor can be firmly placed in the locking group.

[0025] Preferably, a pressure wheel is provided at the other end of the locking cover, and a plurality of guide wheels are provided on the top surface of the locking base, and the rotation direction of the guide wheels and the pressure wheel is consistent with the rotation direction of the locking cover.

[0026] As mentioned above, by arranging a pinch wheel at the other end of the locking cover, the spring impactor can be easily placed therein while avoiding scratching or damaging the spring impactor. A plurality of guide wheels are arranged on the top surface of the locking base to facilitate adjusting the rotational position of the spring impactor therein. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural diagram of a spring impactor in the background technology;

[0028] Figure 2 A side view of the impact energy calibration device in the background art;

[0029] Figure 3 It is a front view of the impact energy calibration device in the background art;

[0030] Figure 4 This is a schematic structural diagram of a high-efficiency spring impactor calibration device according to the present invention at one viewing angle;

[0031] Figure 5 This is a schematic structural diagram of a high-efficiency spring impactor calibration device of the present invention from another perspective;

[0032] Figure 6 This is a schematic diagram of the automatic clamp in Example 1 holding the operating button of the high-efficiency spring impactor tightly therein;

[0033] Figure 7 This is a schematic diagram of moving the high-efficiency spring impactor to the cone head limiter in Example 1;

[0034] Figure 8 A detailed view of the automatic clamp in Example 1;

[0035] Figure 9 This is a detailed view of the locking assembly in Example 1;

[0036] Description of reference numerals:

[0037] 1. Bottom plate;

[0038] 2. Automatic fixture; 201. Fixture base; 202. Annular groove; 203. Locking block; 204. Screw; 205. Screw hole; 206. Spring; 207. Roller; 208. Connecting plate;

[0039] 3. Locking base; 301. Guide wheel;

[0040] 4. Locking cover; 401. Pressure wheel;

[0041] 5. Servo motor; 6. Right-angle motor; 7. Stand; 8. Pendulum; 9. Handheld controller; 10. Dial; 11. Slider; 12. Cone head limiter; 13. Displacement sensor; 14. Tension sensor; 15. Pointer; 16. Impact point; 17. Spring impactor. DETAILED DESCRIPTION

[0042] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation methods in conjunction with the accompanying drawings.

[0043] Example 1

[0044] Please refer to Figures 4 to 9 As shown, a high-efficiency spring impactor calibration device includes a base plate 1, a sliding group, a servo motor 5, a right-angle motor 6, a locking group, a cone head limiter 12, a tension sensor 14, a displacement sensor 13, a handheld controller 9, a stand 7, a pendulum 8, a dial 10 and an automatic fixture 2;

[0045] The servo motor 5 is used to drive the sliding member 11 of the sliding group to slide along the extension direction of the bottom plate 1. The locking group is fixed on the sliding member 11 to lock the spring impactor 17.

[0046] The automatic clamp 2 is arranged on one side of the base plate 1, and the right-angle motor 6 is used to drive the automatic clamp 2 to clamp or release the operating button of the spring impactor 17. The stand 7 is arranged on the other side of the base plate 1, and the pendulum 8 is rotatably connected to the stand 7. The bottom of the pendulum 8 is provided with an impact point 16, and the dial 10 is arranged on one side of the stand 7. The pointer 15 on the dial 10 rotates with the rotation of the pendulum 8. The cone head limiter 12 is arranged on the base plate 1 and close to the stand 7. A cone head limiter hole is provided on the surface of the cone head limiter 12, and the center of the limiter hole and the impact point 16 are located on the same horizontal plane. The tension sensor 14 is connected to the cone head limiter 12, and the displacement sensor 13 is arranged on the base plate 1. When the spring impactor 17 in the locking group abuts against the cone head limiter 12, the displacement sensor 13 starts to detect the sliding distance of the sliding member 11;

[0047] The handheld controller 9 is arranged on the other side of the stand 7 , and the handheld controller 9 is electrically connected to the tension sensor 14 and the displacement sensor 13 respectively.

[0048] In this embodiment, the sliding group is a screw slider mechanism, the base plate 1 is provided with a slide rail that cooperates with the screw slider mechanism, the sliding member 11 is a slider, and the slider can slide on the slide rail, and the servo motor 5 is fixed to one side end of the base plate 1 and connected to the screw of the screw slider mechanism.

[0049] In this embodiment, reference Figure 8 As shown, the automatic clamp 2 includes a clamp base 201, a locking block 203, a connecting plate 208, a spring 206 and a screw 204;

[0050] One side of the clamp base 201 is connected to the output shaft of the right-angle motor 6, and the other side of the clamp base 201 is provided with an annular groove 202, and the middle of the annular groove 202 is provided with a screw hole 205, and the screw rod 204 is fixedly connected to one side of the connecting disk 208, and the screw rod 204 is screwed to the screw hole 205. The surface of the connecting disk 208 has a plurality of notches distributed in an array in its center, and the locking block 203 is passed through the notch, and the inner wall of the notch is provided with a spring 206 connected to the locking block 203. The side of the locking block 203 close to the clamp base 201 is a wedge-shaped structure, and the outer wall of the wedge-shaped structure is abutted against the groove wall of the annular groove 202, and the end of the locking block 203 away from the clamp base 201 is an inwardly bent structure.

[0051] In this embodiment, a roller 207 is provided at one end of the locking block 203 away from the clamp base 201. Preferably, the roller 207 is made of rubber or other materials.

[0052] In this embodiment, the surface of the connection plate 208 has four notches distributed in an array at its center.

[0053] In this embodiment, reference Figure 9 As shown, the locking group includes a locking base 3 and a locking cover 4;

[0054] One end of the locking cover 4 is hingedly connected to one end of the top surface of the locking base 3 via a spring 206 . The inner surface shape of the locking cover 4 and the top surface shape of the locking base 3 are both arc-shaped.

[0055] In this embodiment, a pressure wheel 401 is provided at the other end of the locking cover 4 , and a plurality of guide wheels 301 are provided on the top surface of the locking base 3 . The rotation direction of the guide wheels 301 and the pressure wheel 401 is consistent with the rotation direction of the locking cover 4 .

[0056] The working principle of this embodiment is as follows: Figure 6As shown, after the impact energy matched by the spring impactor 17 is input into the handheld controller 9, the servo motor 5 drives the sliding group to move the spring impactor 17 backward, and the operating button of the spring impactor 17 is pushed into the automatic clamp 2. The right-angle motor 6 drives the automatic clamp 2 to rotate clockwise, clamping the operating button of the spring impactor 17 into the automatic clamp 2. The servo motor 5 drives the sliding group to move forward, and the automatic clamp 2 pulls the operating button of the spring impactor 17 apart (i.e., pulls the hammer apart) to a predetermined distance. The hammer remains in the pulled-apart state, and the right-angle motor 6 drives the automatic clamp 2 to rotate counterclockwise, and the automatic clamp 2 releases the operating button.

[0057] Afterwards, refer to Figure 7 As shown, the servo motor 5 drives the sliding group to move the spring impactor 17 to the cone head limiter 12. After the displacement sensor 13 detects the position of the slider 11, it starts to calculate the retraction distance of the hammer head apex. As the servo motor 5 drives the slider 11 to continue to move forward, the cone head limiter 12 gradually compresses and releases the cone head, and the tension sensor 14 starts to measure the release force of the cone head spring 206. When the compression and release of the cone head spring 206 reaches the corresponding force value, the hammer head of the spring impactor 17 pops out and hits the impact point 16 at the end of the pendulum 8 and then stops. The impact energy indication is displayed on the dial 10, and its value is recorded. The values of the tension sensor 14 and the displacement sensor 13 are also transmitted to the handheld controller 9, completing a test.

[0058] After the test, when the pendulum 8 stops swinging, the servo motor 5 drives the slide 11 to move to the initial position, and the operating button of the spring impactor 17 is pushed back into the automatic fixture 2. The right-angle motor 6 drives the automatic fixture 2 to rotate clockwise, holding the operating button of the spring impactor 17 tightly, and rotating the spring impactor 17 120° to prepare for the next impact test.

[0059] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the description and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A high-efficiency spring impactor calibration device, characterized in that: It includes base plate, sliding group, servo motor, right-angle motor, locking group, cone head limiter, tension sensor, displacement sensor, handheld controller, stand, pendulum, dial and automatic fixture; The servo motor is used to drive the sliding member of the sliding group to slide on the bottom plate along its extension direction, and the locking group is fixed on the sliding member to lock the spring impactor; The automatic clamp is arranged on one side of the base plate, the right-angle motor is used to drive the automatic clamp to clamp or release the operating button of the spring impactor, the stand is arranged on the other side of the base plate, the pendulum is rotatably connected to the stand, the bottom of the pendulum is provided with an impact point, the dial is arranged on one side of the stand, the pointer on the dial rotates with the rotation of the pendulum, the cone head limiter is arranged on the base plate and close to the stand, a cone head limiter hole is provided on the surface of the cone head limiter, the center of the limiter hole and the impact point are located on the same horizontal plane, the tension sensor is connected to the cone head limiter, and the displacement sensor is arranged on the base plate, when the spring impactor in the locking group abuts against the cone head limiter, the displacement sensor starts to detect the sliding distance of the sliding member; The handheld controller is arranged on the other side of the stand, and the handheld controller is electrically connected to the tension sensor and the displacement sensor respectively.

2. The high-efficiency spring impactor calibration device according to claim 1, characterized in that: The sliding group is a screw slider mechanism, the base plate is provided with a slide rail that cooperates with the screw slider mechanism, the sliding part is a slider, the slider can slide on the slide rail, and the servo motor is fixed to one side end of the base plate and connected to the screw of the screw slider mechanism.

3. The high-efficiency spring impactor calibration device according to claim 1, characterized in that: The automatic clamp comprises a clamp base, a locking block, a connecting plate, a spring and a screw; One side of the clamp base is connected to the output shaft of the right-angle motor, and the other side of the clamp base is provided with an annular groove, and the middle part of the annular groove is provided with a screw hole, and the screw is fixedly connected to one side of the connecting disk, and the screw is screwed into the screw hole. The surface of the connecting disk is provided with a plurality of notches distributed in a central array, and the locking block is passed through the notch, and the inner wall of the notch is provided with a spring connected to the locking block, and the side of the locking block close to the clamp base is a wedge-shaped structure, and the outer wall of the wedge-shaped structure is abutted against the groove wall of the annular groove, and the end of the locking block away from the clamp base is an inwardly bent structure.

4. The high-efficiency spring impactor calibration device according to claim 3, characterized in that: A roller is provided on one end of the locking block away from the clamp base.

5. The high-efficiency spring impactor calibration device according to claim 3, characterized in that: The surface of the connection plate is provided with four notches distributed in a central array.

6. The high-efficiency spring impactor calibration device according to claim 1, characterized in that: The locking group includes a locking base and a locking cover; One end of the locking cover is connected to one end of the top surface of the locking base through a spring hinge, and the inner surface shape of the locking cover and the top surface shape of the locking base are both arc-shaped.

7. The high-efficiency spring impactor calibration device according to claim 6, characterized in that: A pressure wheel is provided at the other end of the locking cover, and a plurality of guide wheels are provided on the top surface of the locking base. The rotation direction of the guide wheels and the pressure wheel is consistent with the rotation direction of the locking cover.

Images