A wire clamping device for broken wire detection

Abstract

The present invention relates to a detection device after the wire embedding of a motor stator, in particular to a wire clamping device for wire damage detection, comprising: a wire clamping seat; a fixed wire clamping block, which is installed at one end of the wire clamping seat; the movable wire clamping block is slidably installed on the wire clamping seat and is arranged opposite to the fixed wire clamping block; both ends of the wire clamping spring are respectively connected to the movable wire clamping block and the wire clamping seat, and are used to press the movable wire clamping block against the fixed wire clamping block; the opening and closing device is installed on the wire clamping seat and is connected to the movable wire clamping block, and is used to push the movable wire clamping block to separate from the fixed wire clamping block and load the enameled wire. The wire clamping device for wire damage detection provided by the present invention realizes the clamping and conduction of the enameled wire through the wire clamping spring, the fixed wire clamping block and the movable wire clamping block, and the opening and closing device facilitates the automatic opening of the movable wire clamping block by the automatic equipment, and can conveniently realize automatic wire loosening.

Description

Technical Field

[0001] The present invention relates to a detection device for a motor stator after wire insertion, in particular to a wire clamping device for detecting wire damage. Background Art

[0002] The motor stator needs to insert enameled wires to form windings, and currently the wire insertion is mainly carried out in an automated manner. During the wire insertion process, situations such as wire damage and wire breakage may occur. Therefore, after the wire insertion is completed, it is necessary to detect whether the enameled wires are damaged or broken.

[0003] After the wire insertion is completed, if it is detected that there are damaged or broken wires, rework is required. During rework, the inserted enameled wires need to be removed, resulting in a large workload. If it can be detected whether wire damage or wire breakage occurs during the wire insertion process, the subsequent rework workload can be effectively reduced. Detecting during the wire insertion process requires energizing the enameled wires and detecting whether wire damage or wire breakage occurs based on whether current can be detected. Therefore, how to clamp and conduct electricity to the enameled wires is an urgent problem to be solved. Summary of the Invention

[0004] To solve the above problems, the present invention provides a wire clamping device for detecting wire damage that can cooperate with automated equipment for automatic wire clamping and conduction. The specific technical solution is as follows:

[0005] A wire clamping device for detecting wire damage includes: a wire clamping seat; a fixed wire clamping block, which is installed at one end of the wire clamping seat; a movable wire clamping block, which is slidably installed on the wire clamping seat and is arranged opposite to the fixed wire clamping block; a wire clamping spring, the two ends of which are respectively connected to the movable wire clamping block and the wire clamping seat, and is used to press the movable wire clamping block against the fixed wire clamping block; and an opening and closing device, which is installed on the wire clamping seat and is connected to the movable wire clamping block, and is used to push the movable wire clamping block to separate from the fixed wire clamping block to insert the enameled wire.

[0006] Preferably, the opening and closing device includes: a driving shaft, which is fixed on the movable wire clamping block; a connecting shaft, which is rotatably installed on the wire clamping seat; a driving rod, which is fixed on the connecting shaft and has a waist-shaped driving groove at one end, and the driving shaft is movably inserted into the driving groove; and a push rod, which is fixed at the other end of the driving rod and is used to push the driving rod.

[0007] Furthermore, it further includes: a strengthening block, which is fixed at the other end of the connecting shaft and is connected to the driving rod.

[0008] Preferably, a sliding groove is provided on the wire clamping seat, and the movable wire clamping block is slidably inserted into the sliding groove.

[0009] Preferably, it further includes: a spring seat, on which a spring fixing block is provided. The spring seat is fixed on the wire clamping seat, and the spring fixing block is movably inserted into the spring groove of the movable wire clamping block. Both ends of the wire clamping spring are respectively abutted against the spring fixing block and the spring groove.

[0010] Preferably, the movable wire clamping block is provided with movable wire clamping teeth, and the fixed wire clamping block is provided with fixed wire clamping teeth. The movable wire clamping teeth and the fixed wire clamping teeth are arranged oppositely for clamping the enameled wire.

[0011] Preferably, it further includes: a displacement device, which includes: a sliding seat, on which an inclined fixed inclined plane is provided; a linear guide rail, which is fixed on the fixed inclined plane; a slider, which is slidably installed on the linear guide rail; a connecting seat, which is fixed on the slider, and the wire clamping seat is installed on the top of the connecting seat and is horizontally arranged; and a reset device, which is respectively connected to the sliding seat and the connecting seat for resetting the wire clamping seat.

[0012] Furthermore, the reset device includes: a first pull spring column, which is fixed on the connecting hole of the connecting seat; a second pull spring column, which is fixed on the bottom of the sliding seat; and a reset pull spring, both ends of which are respectively connected to the first pull spring column and the second pull spring column.

[0013] Furthermore, it further includes: a pull spring seat, which is fixed at one end of the sliding seat, and the second pull spring column is fixed on the pull spring seat.

[0014] Wherein, two of the first pull spring column, the second pull spring column and the reset pull spring are symmetrically provided.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The wire clamping device for broken wire detection provided by the present invention realizes the clamping and conduction of the enameled wire through the wire clamping spring, the fixed wire clamping block and the movable wire clamping block, and the movable wire clamping block can be conveniently opened automatically by the opening and closing device, so that the wire can be automatically released. At the same time, the displacement device makes the wire clamping device flexible and provides a certain movement space, avoiding accidental breakage of the enameled wire during wire embedding and ensuring normal detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a wire clamping device for broken wire detection;

[0018] Figure 2 is an exploded view of a wire clamping device for broken wire detection;

[0019] Figure 3 It is a side view of a wire clamping device for wire damage detection;

[0020] Figure 4 It is a top view of a wire clamping device for wire damage detection. Specific implementation manners

[0021] The present invention will be further described in conjunction with the accompanying drawings.

[0022] Embodiment 1

[0023] Embodiment 1

[0024] As Figures 1 to 4 shown, a wire clamping device for wire damage detection includes a wire clamping base 1, a fixed wire clamping block 2, a movable wire clamping block 3, a wire clamping spring 42, a spring seat 41 and an opening and closing device.

[0025] A sliding groove 11 is provided at the top of the wire clamping base 1, a sliding bottom plate 12 is provided at the bottom of the sliding groove 11, one end of the sliding bottom plate 12 is located outside the wire clamping base 1, and the fixed wire clamping block 2 is fixed at one end of the sliding bottom plate 12. The movable wire clamping block 3 is slidably inserted into the sliding groove 11 and is arranged opposite to the fixed wire clamping block 2. Movable wire clamping teeth 32 are provided on the movable wire clamping block 3, fixed wire clamping teeth 21 are provided on the fixed wire clamping block 2, the movable wire clamping teeth 32 and the fixed wire clamping teeth 21 are arranged opposite to each other, and the fixed wire clamping teeth 21 and the movable wire clamping teeth 32 are used for clamping the enameled wire. Since multi-point contact with the enameled wire is realized, reliable clamping and conduction can be ensured, the enameled wire can be prevented from falling off, and the situation of insecure planar clamping in the prior art is solved. At the same time, the fixed wire clamping teeth 21 and the movable wire clamping teeth 32 can also pierce the enamel layer of the enameled wire and be directly connected to the enameled wire to realize the conduction of the enameled wire.

[0026] A spring groove 31 is provided on the movable wire clamping block 3, the spring groove 31 is a waist-shaped groove, and the wire clamping spring 42 is movably inserted into the spring groove 31. A spring fixing block 411 is provided on the spring seat 41, the spring seat 41 is fixed at the top of the wire clamping base 1 and is located above the sliding groove 11 to limit the movement of the movable wire clamping block 3 in the sliding groove 11. The spring fixing block 411 is just inserted into the spring groove 31. Among them, one end of the wire clamping spring 42 abuts against the spring fixing block 411, and the other end abuts against one side of the spring groove 31, so that the movable wire clamping block 3 is pressed against the fixed wire clamping block 2. The wire clamping spring 42 is used to provide a certain elastic force, so that the enameled wire is clamped between the fixed wire clamping block 2 and the movable wire clamping block 3. The sliding bottom plate 12 makes the wire clamping area formed by the fixed wire clamping block 2 and the movable wire clamping block 3 located outside the wire clamping base 1, which is convenient for loading the enameled wire and avoids interference between the enameled wire and the wire clamping base 1.

[0027] The opening and closing device includes a driving shaft 61, a connecting shaft 64, a driving rod 62, a push rod 65 and a reinforcing block 63. The connecting shaft 64 is rotatably installed on one side of the wire clamping base 1. The driving rod 62 is fixed to one end of the connecting shaft 64. One end of the driving rod 62 is provided with a waist-shaped driving groove 621, and the other end is fixedly connected to the push rod 65. The driving shaft 61 is fixed to one end of the movable wire clamping block 3 and is movably inserted into the driving groove 621. The reinforcing block 63 is L-shaped. The reinforcing block 63 is fixed to the other end of the connecting shaft 64 and is connected to the driving rod 62, improving the stability of the driving rod 62. The opening and closing device is used to push the movable wire clamping block 3 away from the fixed wire clamping block 2 to load the enameled wire.

[0028] All parts of the wire clamping device are made of metal and can conduct electricity.

[0029] The wire clamping device can be installed on the turntable of the automated equipment. Then, push the push rod 65 inward by hand to open the movable wire clamping block 3, place the enameled wire with the paint removed in the wire clamping area, and then release the push rod 65. The movable wire clamping block 3 clamps the enameled wire on the fixed wire clamping block 2 under the action of the elastic force of the wire clamping spring 42. Then the turntable rotates to the wire embedding station, and the conductive cylinder on the automated equipment starts. The conductive block on the conductive cylinder is connected to the push rod 65 to achieve the conduction of the enameled wire. When starting to embed the wire, a 24V power supply is applied. The power supply is conducted to the enameled wire through the conductive block. Subsequently, the stator enameled wire is slowly embedded into the stator. Then, place a current detection device on the pressure cover of the equipment. When the equipment detects that current passes through, it indicates that there is wire damage or wire breakage in this wire embedding. If there is no feedback from the detection device, it means that there is no wire damage or wire breakage in this wire embedding. When the wire embedding is completed, the piston rod of the conductive cylinder retracts, the wire releasing cylinder extends, the piston rod of the wire releasing cylinder pushes the push rod 65, and the push rod 65 drives the movable wire clamping block 3 to leave the fixed wire clamping block 2 through the driving rod 62 and the connecting shaft 64 to release the enameled wire. Then the robotic arm takes away the stator. If current is detected during the detection process, the wire embedding is stopped, the enameled wire is cut off, and the stator is taken away. At this time, the stator has not completed the wire embedding, which is convenient for subsequent removal of the embedded enameled wire, reduces the loss of the enameled wire, and lowers the cost.

[0030] Embodiment 2

[0031] On the basis of the above Embodiment 1, as Figures 1 to 4 shown, it further includes a displacement device. The displacement device includes a sliding seat 52, a linear guide rail 53, a slider 54, a connecting seat 51 and a reset device. Among them, the sliding seat 52 is used to be installed on the turntable of the automated equipment. The top of the sliding seat 52 is provided with an inclined fixed inclined surface 521; the linear guide rail 53 is fixed on the fixed inclined surface 521; the connecting seat 51 is slidably installed on the linear guide rail 53 through the slider 54; the wire clamping base 1 is installed on the top of the connecting seat 51 and is horizontally arranged.

[0032] The reset device includes a first tension spring column 74, a second tension spring column 72, a reset tension spring 71 and a tension spring seat 73; the first tension spring column 74 is fixed to the connection hole 511 of the connection seat 51 and is symmetrically located on both sides of the connection seat 51. The tension spring seat 73 is fixed to one end of the sliding seat 52 and is located at the lower end of the fixed inclined surface 521. The second tension spring column 72 is symmetrically fixed to the top of the tension spring seat 73, and the two ends of the reset tension spring 71 are respectively connected to the first tension spring column 74 and the second tension spring column 72, and are symmetrically located on both sides of the connection seat 51. In the free state, the connection seat 51 is pressed against the tension spring seat 73 under the action of the reset tension spring 71.

[0033] When the enameled wire is subjected to force, the wire clamping seat 1 moves along the linear guide rail 53, with a certain buffer distance, which can effectively prevent the enameled wire from being broken. When the external force disappears, the connecting seat 51 moves toward the tension spring seat 73 under the action of the tension spring, and rests on the tension spring seat 73 to complete the reset.

[0034] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the protection scope of the claims of the present invention.

Claims

1. A wire clamping device for broken wire detection, characterized in that Comprising: A wire clamping base (1); A fixed wire clamping block (2), which is installed at one end of the wire clamping base (1); A movable wire clamping block (3), which is slidably installed on the wire clamping base (1) and is arranged opposite to the fixed wire clamping block (2); A wire clamping spring (42), the two ends of which are respectively connected to the movable wire clamping block (3) and the wire clamping base (1) for pressing the movable wire clamping block (3) against the fixed wire clamping block (2); and An opening and closing device, which is installed on the wire clamping base (1) and is connected to the movable wire clamping block (3) for pushing the movable wire clamping block (3) to separate from the fixed wire clamping block (2) to load the enameled wire; the opening and closing device includes: A driving shaft (61), which is fixed on the movable wire clamping block (3); A connecting shaft (64), which is rotatably installed on the wire clamping base (1); A driving rod (62), which is fixed on the connecting shaft (64), and a waist-shaped driving groove (621) is provided at one end, and the driving shaft (61) is movably inserted into the driving groove (621); and A push rod (65), which is fixed at the other end of the driving rod (62) for pushing the driving rod (62); And movable wire clamping teeth (32) are provided on the movable wire clamping block (3), and fixed wire clamping teeth (21) are provided on the fixed wire clamping block (2), and the movable wire clamping teeth (32) are arranged opposite to the fixed wire clamping teeth (21) for clamping the enameled wire.

2. The wire clamping device for broken wire detection according to claim 1, wherein, Further comprising: A strengthening block (63), which is fixed at the other end of the connecting shaft (64) and is connected to the driving rod (62).

3. A wire clamping device for broken wire detection according to claim 1, characterized in that, A sliding groove (11) is provided on the wire clamping base (1), and the movable wire clamping block (3) is slidably inserted into the sliding groove (11).

4. A wire clamping device for broken wire detection according to claim 1, characterized in that, Further comprising: A spring seat (41), on which a spring fixing block (411) is provided, the spring seat (41) is fixed on the wire clamping base (1), the spring fixing block (411) is movably inserted into the spring groove (31) of the movable wire clamping block (3), and the two ends of the wire clamping spring (42) respectively abut against the spring fixing block (411) and the spring groove (31).

5. A wire clamping device for broken wire detection according to any one of claims 1 to 4, characterized in that Further comprising: A displacement device, which includes: A sliding seat (52), on which an inclined fixed inclined surface (521) is provided; A linear guide rail (53), which is fixed on the fixed inclined surface (521); A slider (54), which is slidably installed on the linear guide rail (53); A connecting seat (51), which is fixed on the slider (54), the wire clamping base (1) is installed on the top of the connecting seat (51) and is horizontally arranged; and A reset device, which is respectively connected to the sliding seat (52) and the connecting seat (51) for resetting the wire clamping base (1).

6. The wire clamping device for broken wire detection according to claim 5, characterized in that, The reset device includes: The first spring post (74), the first spring post (74) is fixed on the connection hole (511) of the connection seat (51); The second spring post (72), the second spring post (72) is fixed on the bottom of the sliding seat (52); and The return spring (71), both ends of the return spring (71) are respectively connected to the first spring post (74) and the second spring post (72).

7. The wire clamping device for broken wire detection according to claim 6, characterized in that It further includes: The spring seat (73), the spring seat (73) is fixed at one end of the sliding seat (52), and the second spring post (72) is fixed on the spring seat (73).

8. The wire clamping device for broken wire detection according to claim 6, characterized in that, Two of the first spring post (74), the second spring post (72) and the return spring (71) are symmetrically provided.

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