CN220819692U - Automatic bullet angle tester - Google Patents

Abstract

The application relates to an automatic rebound angle tester, which belongs to the technical field of enameled wire testing, and comprises a workbench, wherein a clamping mechanism for clamping a sample is arranged on the workbench, a rotating arm and a driving piece for driving the rotating arm to rotate are arranged on the workbench, an inductor is arranged on the rotating arm and is electrically connected with the driving piece, and an angle ruler for measuring the rotating angle of the rotating arm is arranged on the workbench. The application is convenient to operate and can improve the detection efficiency and the detection precision of the rebound angle test.

Description

Automatic bullet angle tester

Technical Field

The application relates to the field of enameled wire testing, in particular to an automatic rebound angle tester.

Background

Enameled wire is a common wire in electromagnetic coils, and is characterized by being thin and flexible, and good at manufacturing miniaturized coils. And the rebound angle of the enameled wire reflects the coordination condition of the mechanical property and the electrical property inside the enameled wire. The rebound angle of the enameled wire refers to an angle required by restoring the enameled wire to an original state after the enameled wire is loosened after being compressed under a certain tensile force. The capability of the enameled wire to recover after being extruded is popular. Under normal conditions, the enameled wire should have a smaller rebound angle, namely, after being acted by external force, the enameled wire can timely recover to the original state, and the normal working state of the electromagnetic coil is maintained.

The size of the enameled wire rebound angle can directly influence the performance of the coil, if the enameled wire rebound angle is too large, the electric parameters of the electromagnetic coil can be changed, so that the circuit performance is influenced, and even the coil cannot work normally. Therefore, in the manufacturing process of the electromagnetic coil, strict control of the rebound angle of the enameled wire is very necessary.

The Chinese patent with the bulletin number of CN210487499U discloses a large-line and flat-line rebound angle tester which comprises a horizontal bottom plate, a fixed block and a clamping plate, wherein the fixed block and the clamping plate are arranged on the horizontal bottom plate and used for clamping a sample, a functional plate is rotatably arranged on the horizontal bottom plate, a functional frame is arranged on the functional plate, and a first scale is fixed on the horizontal bottom plate. When the multifunctional bending machine is used, a sample is clamped between the fixing plate and the clamping plate, the functional frame is guaranteed to be in contact with the sample, then the functional plate is manually rotated towards the direction of the 0 scale mark of the first scale, the sample is bent, then the functional plate is rotated back to the initial position, the functional plate is slowly close to the bent sample again, the surface of the functional frame is tightly attached to the sample as much as possible, the state of the sample cannot be changed again, and at the moment, the reading of the corresponding positions of the functional plate and the first scale is read, and the reading is the rebound angle of the sample.

According to the technical scheme, when the tester is used, the inventor considers that the functional board needs to be manually rotated, and after the sample is bent, the rotation of the functional board is difficult to ensure that the functional frame just contacts the sample and the sample is not secondarily bent through manual control, so that the detection efficiency of the rebound angle test is affected, and the detection precision of the rebound angle test is also affected.

Disclosure of utility model

In order to improve the detection efficiency and the detection precision of the rebound angle test, the application provides an automatic rebound angle tester.

The application provides an automatic rebound angle tester, which adopts the following technical scheme:

The utility model provides an automatic bullet angle tester, includes the workstation, be equipped with the fixture that is used for the centre gripping sample on the workstation, be equipped with rotor arm and drive rotor arm pivoted driving piece on the workstation, be equipped with the inductor on the rotor arm, inductor and driving piece electric connection, be equipped with the angle square that is used for measuring rotor arm turned angle on the workstation.

By adopting the technical scheme, when in use, a certain length of sample is firstly cut from the wire coil, and the sample is straightened; then resetting the rotating arm, clamping one end of the sample at the clamping mechanism, enabling the rotating arm to be consistent with the length direction of the sample, and ensuring that the side wall of the sample is contacted with the sensing end of the sensor; then starting a driving piece, wherein the driving piece drives the rotating arm to rotate to the 0-degree position of the angle ruler, the rotating arm rotates to drive the inductor to rotate, and the inductor forces the sample to bend when rotating; after the sample is bent, the rotating arm retreats to leave the sample completely and then rotates towards the sample direction, until the sensing end of the sensor senses the bent sample, the sensor sends an electric signal, the driving piece stops rotating after receiving the electric signal, the rotating arm stops, the reading corresponding to the position of the rotating arm on the angle gauge is read, and the reading is the rebound angle of the sample. The rotating arm is driven to rotate through the driving piece to replace manual rotation, and after the sample is bent, the rotating angle of the rotating arm, which is close to the sample, is accurately controlled by the sensor, so that the testing efficiency and the testing precision of the rebound angle test are improved.

Optionally, the angle square strides the top of locating the rotor arm, the one end that the rotor arm kept away from self center of rotation is equipped with the cushion, be equipped with the instruction board on the cushion, the one end and the cushion of instruction board are fixed, and the unsettled setting of the other end is on the angle square, the unsettled one end of instruction board is equipped with the tip.

Through adopting above-mentioned technical scheme, angle chi causes the interference to its rotation when avoiding the rotor arm to rotate, through the setting of tip, the scale that the pointed end of tip indicates is the angle that corresponds on the angle chi promptly, and the tester of being convenient for reads the reading of bullet angle fast.

Optionally, two proximity switches are arranged on the workbench, the two proximity switches are arranged corresponding to the measuring range of the angle ruler, and the driving piece is electrically connected with the two proximity switches respectively.

By adopting the technical scheme, the rotating range of the rotating arm is limited through the arrangement of the proximity switch, so that the rotating arm can only rotate in the measuring range of the angle ruler on one hand, and the possibility of test failure caused by sample cracking or local too large stress and difficult rebound due to too large rotation amplitude of the sample is reduced; on the other hand, the rotating arm can rotate to the 0-degree position of the angle gauge more accurately when the sample is bent, and the test precision of the rebound angle is improved.

Optionally, the fixture includes fixed block and grip block, the fixed block is fixed in on the workstation, the grip block slides and sets up on the workstation, be equipped with the drive assembly who is used for driving the grip block and moves towards or deviate from the fixed block on the workstation, be formed with the centre gripping space that is used for the centre gripping sample between fixed block and the grip block.

Through adopting above-mentioned technical scheme, when carrying out the centre gripping to the sample, to treat the centre gripping end of sample and place in the centre gripping space, utilize drive assembly drive grip block to remove, can make the sample centre gripping between fixed block and grip block, the operation of being convenient for.

Optionally, the fixed block is close to one side bottom of grip block and is equipped with the spout, one side that the grip block is close to the fixed block is equipped with the loading board, the diapire sliding connection of loading board and spout.

Through adopting above-mentioned technical scheme, when placing the waiting holding end of sample in the centre gripping space, utilize the loading board to suspend the sample in the top of workstation, avoid rotating in-process sample and the mesa of workstation and take place to contact and then lead to the fact the influence to the bending state of sample, further improve the test accuracy of bullet angle test.

Optionally, the one end that the fixed block is close to the spout inside wall is equipped with the mounting groove, be equipped with the bearing in the mounting groove, drive assembly includes pivot and handle, the pivot is fixed with the inner circle of bearing is coaxial, the one end of pivot runs through behind the fixed block with the handle fixed, and the other end is equipped with the screw thread section and runs through the grip block setting, be equipped with the screw hole with screw thread section looks adaptation on the grip block.

Through adopting above-mentioned technical scheme, when turning the handle, drive the pivot and rotate, the pivot rotates and drives the screw thread section and rotate, and the screw thread section rotates and drives the grip block and remove, and then realizes driving the grip block towards or deviate from the purpose that the fixed block removed, simple structure, the operation of being convenient for.

Optionally, a rubber cushion layer is arranged on one side of the fixing block opposite to the clamping block.

Through adopting above-mentioned technical scheme, on the one hand can reduce the clamping end of sample and take place extrusion deformation and then influence the possibility of test result, on the other hand, through the friction between rubber cushion increase sample and fixed block and the grip block, reduce the test in-process sample and produce the possibility of relative skew in the grip space, improved the accuracy of test.

Optionally, the up end of rotor arm is equipped with length chi, the rotor arm slides along self length and is provided with the removal frame, the inductor is located on the removal frame, be equipped with the locking component that is used for locking the removal frame on the rotor arm on the removal frame.

Through adopting above-mentioned technical scheme, remove the frame and can slide on the rotor arm, can fix a position the frame through length chi fast accurately, can adjust the position of removing the frame on the rotor arm in order to adapt to the rebound angle test of equidimension, different grade type enameled wire sample, improve the suitability of this tester.

Optionally, the movable frame cover is located on the rotor arm, locking assembly includes threaded rod and knob, threaded rod threaded connection is on the movable frame, the threaded rod is located the inboard one end and the rotor arm butt of movable frame, and the one end and the knob that are located the movable frame outside are fixed.

Through adopting above-mentioned technical scheme, unscrewing the knob can make the movable frame freely slide on the dwang, when adjusting the position of movable frame on the rotor arm according to the size of sample, screw up the knob for the threaded rod supports tight rotor arm, reduces the possibility that the movable frame slides at will on the rotor arm in the test process, improves the accuracy of test result.

In summary, the present application includes at least one of the following beneficial technical effects:

1. The rotating arm is driven to rotate by the driving piece instead of manual rotation through the arrangement of the driving piece and the inductor, and after the sample is bent, the rotating angle of the rotating arm, which is close to the sample, is accurately controlled by the inductor, so that the testing efficiency and the testing precision of rebound angle testing are improved;

2. The rotating range of the rotating arm is limited by the arrangement of the two proximity switches, so that the rotating arm can only rotate in the measuring range of the angle ruler on one hand, and the possibility that the sample is cracked due to overlarge rotating amplitude of the sample or is hard to rebound due to overlarge local stress so as to cause test failure is reduced; on the other hand, the rotating arm can rotate to the 0-degree position of the angle gauge more accurately when the sample is bent, and the test precision of the rebound angle is improved.

3. Through the setting of loading board, when placing the waiting holding end of sample in the centre gripping space, utilize the loading board to suspend the sample in the top of workstation, avoid rotating in-process sample and the mesa of workstation and take place to contact and then cause the influence to the bending state of sample, further improve the test accuracy of bullet angle test.

Drawings

FIG. 1 is a schematic diagram of an overall structure of an automatic rebound angle tester according to an embodiment of the present application.

Fig. 2 is a schematic structural view of a driving member in an embodiment embodying the present application.

Fig. 3 is a schematic view of the structure of the positional relationship of the turning arm, the angle gauge and the indicating plate in the embodiment embodying the present application.

Fig. 4 is a schematic view of a driving assembly in an embodiment embodying the present application.

Fig. 5 is a schematic view of a locking assembly embodying an embodiment of the present application.

Reference numerals illustrate: 1. a work table; 11. a driving member; 12. a proximity switch; 2. a clamping mechanism; 21. a fixed block; 211. a chute; 212. a mounting groove; 2121. a bearing; 22. a clamping block; 221. a carrying plate; 222. a threaded hole; 23. a drive assembly; 231. a rotating shaft; 2311. a threaded section; 232. a handle; 24. a clamping space; 25. a rubber cushion layer; 3. a rotating arm; 31. an inductor; 32. a cushion block; 33. an indication board; 331. a tip portion; 34. a length scale; 35. a moving frame; 36. a locking assembly; 361. a threaded rod; 362. a knob; 4. an angle ruler; 41. and (5) mounting a rod.

Detailed Description

The present application will be described in further detail with reference to fig. 1 to 5.

The embodiment of the application discloses an automatic rebound angle tester. Referring to fig. 1 and 2, an automatic rebound angle tester includes a workbench 1, a clamping mechanism 2 for clamping a sample is provided on the workbench 1, a rotating arm 3 and a driving member 11 for driving the rotating arm 3 to rotate are provided on the workbench 1, and in this embodiment, the driving member 11 is a motor. The inductor 31 is installed on the rotating arm 3, the inductor 31 is electrically connected with the driving piece 11, the angle scale 4 for measuring the rotating angle of the rotating arm 3 is installed on the workbench 1, the angle scale 4 is in a fan-shaped arrangement, the upper end face of the angle scale 4 is provided with 0-30-degree equal division scales, and when the rotating arm 3 is in an initial state, namely, the length direction of the rotating arm 3 is consistent with the length direction of the workbench 1, the position reading of the angle scale 4 corresponding to the rotating arm 3 is 30 degrees. The bottom both ends of angle bar 4 are fixed with installation pole 41, and angle bar 4 is fixed in the mesa top of workstation 1 through installation pole 41.

When the tester is used, a sample with a certain length is firstly cut from a wire coil, and the sample is straightened; then resetting the rotating arm 3, clamping one end of the sample at the clamping mechanism 2, enabling the rotating arm 3 to be consistent with the length direction of the sample, and ensuring that the side wall of the sample is contacted with the sensing end of the sensor 31; then, starting the driving piece 11, wherein the driving piece 11 drives the rotating arm 3 to rotate to the 0-degree position of the angle ruler 4, the rotating arm 3 rotates to drive the sensor 31 to rotate, and the sensor 31 forces the sample to bend when rotating; after the sample is bent, the rotating arm 3 is retracted to leave the sample completely and then rotates towards the direction of the sample until the sensing end of the sensor 31 senses the bent sample, the sensor 31 sends an electric signal, the driving piece 11 stops rotating after receiving the electric signal, the rotating arm 3 stops, the reading corresponding to the position of the rotating arm 3 on the angle ruler 4 is read, and the reading is the rebound angle of the sample.

Referring to fig. 1 and 3, the angle gauge 4 spans over the rotating arm 3, so that interference caused by the angle gauge 4 to the rotation of the rotating arm 3 during the rotation can be avoided. One end of the rotating arm 3 far away from the rotating center of the rotating arm is integrally formed with a cushion block 32, an indicating plate 33 is integrally formed on the cushion block 32, one end of the indicating plate 33 is fixed with the cushion block 32, the other end of the indicating plate 33 is suspended on the angle ruler 4, and one suspended end of the indicating plate 33 is provided with a pointed part 331. Through the setting of tip 331, the scale that tip 331 pointed at is the angle that corresponds on angle bar 4 promptly, and the tester of being convenient for reads the reading of bullet angle fast.

Referring to fig. 1 and 2, two proximity switches 12 are mounted on the workbench 1, the two proximity switches 12 are disposed corresponding to the measuring range of the angle gauge 4, and the driving member 11 is electrically connected with the two proximity switches 12, respectively. The rotating range of the rotating arm 3 is limited by the arrangement of the proximity switch 12, so that the rotating arm 3 can only rotate in the measuring range of the angle ruler 4 on one hand, and the possibility that the sample is cracked due to overlarge rotating amplitude of the sample or is hard to rebound due to overlarge local stress so as to cause test failure is reduced; on the other hand, the rotating arm 3 can more accurately rotate to the 0-degree position of the angle ruler 4 when the sample is bent, and the test precision of the rebound angle is improved.

Referring to fig. 1 and 4, the clamping mechanism 2 includes a fixed block 21 and a clamping block 22, the fixed block 21 is fixed on the table 1, the clamping block 22 is slidably disposed on the table 1 along the width direction of the table 1, a driving assembly 23 for driving the clamping block 22 to move toward or away from the fixed block 21 is disposed on the table 1, and a clamping space 24 for clamping a sample is formed between the fixed block 21 and the clamping block 22.

Referring to fig. 4, a sliding groove 211 is formed in the bottom of one side of the fixing block 21, which is close to the clamping block 22, and a bearing plate 221 is fixed on one side of the clamping block 22, which is close to the fixing block 21, and the bearing plate 221 is slidably connected with the bottom wall of the sliding groove 211 along the width direction of the workbench 1. Thus, when the to-be-clamped end of the sample is placed in the clamping space 24, the sample is suspended above the workbench 1 by the bearing plate 221, so that the contact between the sample and the table top of the workbench 1 in the rotation process can be avoided, the bending state of the sample is further influenced, and the testing precision of the rebound angle test is improved.

Referring to fig. 4, a mounting groove 212 is formed at one end of the fixing block 21, which is close to the inner side wall of the sliding groove 211, a bearing 2121 is mounted in the mounting groove 212, the driving assembly 23 comprises a rotating shaft 231 and a handle 232, the rotating shaft 231 is coaxially fixed with the inner ring of the bearing 2121, one end of the rotating shaft 231 penetrates through the fixing block 21 and then is fixed with the handle 232, a threaded section 2311 is coaxially fixed at the other end and penetrates through the clamping block 22, and a threaded hole 222 matched with the threaded section 2311 is formed in the clamping block 22. When the handle 232 is rotated, the rotating shaft 231 is driven to rotate, the rotating shaft 231 rotates to drive the threaded section 2311 to rotate, the threaded section 2311 rotates to drive the clamping block 22 to move, and then the purpose of driving the clamping block 22 to move towards or away from the fixed block 21 is achieved, so that a sample can be clamped between the fixed block 21 and the clamping block 22, and the operation is convenient.

Referring to fig. 4, in order to reduce the possibility that the clamping end of the sample is deformed by extrusion to affect the test result, the opposite sides of the fixing block 21 and the clamping block 22 are adhered with the rubber cushion layer 25, and in addition, when the sample is clamped, the rubber cushion layer 25 can increase the friction between the sample and the fixing block 21 and between the sample and the clamping block 22, so that the possibility that the sample is relatively deviated in the clamping space 24 during the test is reduced, and the test accuracy is improved.

Referring to fig. 1 and 5, the upper end surface of the rotating arm 3 is provided with a length scale 34, the rotating arm 3 is provided with a moving frame 35 sliding along its length, the sensor 31 is fixed to the moving frame 35, and the moving frame 35 is provided with a locking assembly 36 for locking the moving frame 35 to the rotating arm 3. So, remove frame 35 can slide on the rotor arm 3, can be fast accurately to remove frame 35 through length chi 34 and fix a position, can adjust the position of removing frame 35 on rotor arm 3 in order to adapt to the rebound angle test of equidimension, different grade type enameled wire sample, improves the suitability of this tester.

Referring to fig. 5, the moving frame 35 is sleeved on the rotating arm 3, the locking assembly 36 includes a threaded rod 361 and a knob 362, the threaded rod 361 is screwed on the side wall of the moving frame 35, one end of the threaded rod 361 located inside the moving frame 35 abuts against the side wall of the rotating arm 3, and one end located outside the moving frame 35 is coaxially fixed with the knob 362. After the knob 362 is unscrewed, the movable frame 35 can slide freely on the rotating rod, when the position of the movable frame 35 on the rotating arm 3 is adjusted according to the size of the sample, the knob 362 is screwed down, the threaded rod 361 abuts against the rotating arm 3, the possibility that the movable frame 35 slides freely on the rotating arm 3 in the testing process is reduced, and the accuracy of the testing result is improved.

The implementation principle of the automatic rebound angle tester provided by the embodiment of the application is as follows: the tester drives the rotating arm 3 to rotate through the driving piece 11 to replace manual rotation, and after the sample is bent, the rotating angle of the rotating arm 3, which is close to the sample, is accurately controlled by the sensor 31, so that the testing efficiency and the testing precision of the rebound angle test are improved.

The specific using steps of the tester are as follows:

1. intercepting a sample with a certain length from a wire coil, and straightening the sample;

2. Resetting the rotating arm 3, clamping one end of the sample at the clamping mechanism 2, enabling the rotating arm 3 to be consistent with the length direction of the sample, and ensuring that the side wall of the sample is contacted with the sensing end of the sensor 31;

3. The position of the movable frame 35 on the rotating arm 3 is adjusted so that the distance between the movable frame 35 and the center of rotation of the rotating arm 3 is equal to 40 times the narrow-side dimension of the flat wire sample or the nominal diameter of the round wire.

4. Starting the driving piece 11, wherein the driving piece 11 drives the rotating arm 3 to rotate from the 30-degree position of the angle ruler 4 to the 0-degree position of the angle ruler 4, the rotating arm 3 rotates to drive the sensor 31 to rotate, and the sensor 31 forces the sample to bend when rotating;

5. After the sample is bent, the rotating arm 3 is retracted to leave the sample completely and then rotates towards the direction of the sample until the sensing end of the sensor 31 senses the bent sample, the sensor 31 sends an electric signal, the driving piece 11 stops rotating after receiving the electric signal, the rotating arm 3 stops, the reading corresponding to the position of the rotating arm 3 on the angle ruler 4 is read, and the reading is the rebound angle of the sample.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (9)

1. An automatic bullet angle tester which is characterized in that: including workstation (1), be equipped with fixture (2) that are used for the centre gripping sample on workstation (1), be equipped with rotor arm (3) and drive rotor arm (3) pivoted driving piece (11) on workstation (1), be equipped with inductor (31) on rotor arm (3), inductor (31) and driving piece (11) electric connection, be equipped with on workstation (1) and be used for measuring rotor arm (3) turned angle's angle chi (4).

2. An automatic rebound angle tester as claimed in claim 1, wherein: the angle gauge is characterized in that the angle gauge (4) is arranged above the rotating arm (3) in a striding mode, one end, away from the rotating center of the rotating arm (3), of the rotating arm is provided with a cushion block (32), an indication plate (33) is arranged on the cushion block (32), one end of the indication plate (33) is fixed with the cushion block (32), the other end of the indication plate is arranged on the angle gauge (4) in a hanging mode, and one end, suspended in the hanging mode, of the indication plate (33) is provided with a pointed portion (331).

3. An automatic rebound angle tester as claimed in claim 1, wherein: two proximity switches (12) are arranged on the workbench (1), the two proximity switches (12) are arranged corresponding to the measuring range of the angle ruler (4), and the driving piece (11) is electrically connected with the two proximity switches (12) respectively.

4. An automatic rebound angle tester as claimed in claim 1, wherein: the clamping mechanism (2) comprises a fixed block (21) and a clamping block (22), the fixed block (21) is fixed on the workbench (1), the clamping block (22) is arranged on the workbench (1) in a sliding mode, a driving assembly (23) used for driving the clamping block (22) to move towards or away from the fixed block (21) is arranged on the workbench (1), and a clamping space (24) used for clamping a sample is formed between the fixed block (21) and the clamping block (22).

5. An automatic rebound angle tester as claimed in claim 4, wherein: the bottom of one side of the fixed block (21) close to the clamping block (22) is provided with a sliding groove (211), one side of the clamping block (22) close to the fixed block (21) is provided with a bearing plate (221), and the bearing plate (221) is in sliding connection with the bottom wall of the sliding groove (211).

6. An automatic rebound angle tester as claimed in claim 4, wherein: the utility model discloses a fixed block, including fixed block (21), fixed block (21) and clamping block (22) are equipped with mounting groove (212), be equipped with bearing (2121) in mounting groove (212), drive assembly (23) are including pivot (231) and handle (232), pivot (231) are fixed with the inner circle of bearing (2121) coaxial, fixed block (21) is run through to one end of pivot (231) after fixed block (21) with handle (232) fixed, the other end is equipped with screw thread section (2311) and runs through clamping block (22) setting, be equipped with on clamping block (22) screw hole (222) with screw thread section (2311) looks adaptation.

7. An automatic rebound angle tester as claimed in claim 4, wherein: and rubber cushion layers (25) are arranged on the opposite sides of the fixed blocks (21) and the clamping blocks (22).

8. An automatic rebound angle tester as claimed in claim 1, wherein: the upper end face of the rotating arm (3) is provided with a length ruler (34), the rotating arm (3) is provided with a moving frame (35) in a sliding mode along the length of the rotating arm, the sensor (31) is arranged on the moving frame (35), and the moving frame (35) is provided with a locking assembly (36) used for locking the moving frame (35) on the rotating arm (3).

9. An automatic rebound angle tester as claimed in claim 8, wherein: the movable frame (35) is sleeved on the rotating arm (3), the locking assembly (36) comprises a threaded rod (361) and a knob (362), the threaded rod (361) is connected to the movable frame (35) in a threaded mode, one end of the threaded rod (361) located at the inner side of the movable frame (35) is abutted to the rotating arm (3), and one end of the threaded rod located at the outer side of the movable frame (35) is fixed to the knob (362).