Withstand voltage test device

Abstract

The utility model discloses a withstand voltage test device, comprising a substrate which is internally provided with a first jig and at least one second jig; the bracket is arranged on the substrate; the first pressure resistance testing mechanism is arranged on the support, and the first pressure resistance testing mechanism comprises a first up-down air cylinder, a first vertical air cylinder, a first supporting rod and a plurality of first probes; at least part of the first supporting assembly can stretch into the first jig; the first material shifting assembly is arranged on the base plate; the second pressure resistance testing mechanism is arranged on the support, the second pressure resistance testing mechanism comprises a second vertical air cylinder and at least one testing assembly, and the testing assembly comprises a second vertical air cylinder, a second supporting rod and a plurality of second probes; at least part of the second supporting assembly can extend into the second jig; the second material stirring assembly is arranged on the base plate. According to the utility model, through the cooperation of the supporting assembly, the supporting rod and the material stirring assembly, a product can stably fall into the jig, the inclination of the product during placement is avoided, and the accuracy of a withstand voltage test is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of commutators, in particular to a withstand voltage testing device. Background Art

[0002] A commutator, also known as a "commutator", is an important component on the armature of a DC motor and an AC commutator motor. It is composed of many copper sheets separated by mica sheets and is in a cylindrical or disc shape. Each copper sheet is connected to a certain number of armature winding elements. When the armature rotates, the copper sheets successively come into contact with the fixed carbon brushes. In a DC motor, the alternating current in the armature winding is changed into direct current between the carbon brushes through the carbon brushes and the commutator; in an AC commutator motor, the frequency of the alternating current between the carbon brushes meets the working requirements.

[0003] Before leaving the factory, the commutator needs to be subjected to a withstand voltage test to test whether the commutator can withstand high voltage. However, the existing test uses the method of spring pressing on a thin sheet, and the thin sheet contacts the copper bar. When the spring force is large, the surface of the product copper bar will be scratched; when the spring force is small and there is dirt in the jig for installing the thin sheet, the thin sheet will not pop out and cannot contact the copper bar, resulting in missed inspections, and it is very difficult for the operator to find the existing situation, resulting in low test efficiency and poor test quality. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a withstand voltage testing device for a commutator.

[0005] In order to achieve the above purpose, the technical solution provided by an embodiment of the utility model is as follows:

[0006] A withstand voltage testing device, comprising:

[0007] A substrate, in which a first jig and at least one second jig are arranged;

[0008] A bracket, arranged on the substrate;

[0009] A first withstand voltage testing mechanism, arranged on the bracket, the first withstand voltage testing mechanism includes a first up-and-down air cylinder, a first vertical air cylinder connected to the first up-and-down air cylinder, and a first support rod and a plurality of first probes connected to the first vertical air cylinder;

[0010] A first support assembly, at least part of which can extend into the first jig;

[0011] A first material feeding component, arranged on the substrate;

[0012] The second withstand voltage testing mechanism is arranged on the bracket. The second withstand voltage testing mechanism includes a second up-and-down air cylinder and at least one testing component connected to the second up-and-down air cylinder. The testing component includes a second vertical air cylinder, a second support rod connected to the second vertical air cylinder, and a plurality of second probes.

[0013] The second support component, at least part of the second support component can extend into the second jig.

[0014] The second material feeding component is arranged on the substrate.

[0015] As a further improvement of the present utility model, the first support component includes a first lifting air cylinder and a first support rod connected to the first lifting air cylinder. The second support component includes a second lifting air cylinder and at least one second support rod connected to the second lifting air cylinder.

[0016] As a further improvement of the present utility model, the structures of the first jig and the second jig are the same. The first jig includes a jig body and a stepped hole arranged in the jig body. The upper aperture of the stepped hole is larger than the lower aperture of the stepped hole, and a plurality of through grooves are arranged at intervals on the upper hole wall of the stepped hole.

[0017] As a further improvement of the present utility model, the first material feeding component includes a first material feeding air cylinder and a first material feeding block connected to the first material feeding air cylinder. The second material feeding component includes a second material feeding air cylinder and a second material feeding block connected to the second material feeding air cylinder.

[0018] As a further improvement of the present utility model, the free end faces of the first material feeding block and the second material feeding block are both circular.

[0019] As a further improvement of the present utility model, both the first material feeding air cylinder and the second material feeding air cylinder are pen-shaped air cylinders.

[0020] As a further improvement of the present utility model, the first vertical air cylinder is connected with a first support seat. The first support rod and a plurality of the first probes are both connected to the first support seat. The second vertical air cylinder is connected with a second support seat. The second support rod and a plurality of the second probes are both connected to the second support seat.

[0021] As a further improvement of the present utility model, a plurality of the first probes are arranged at equal intervals along the circumferential direction around the center line of the first support rod, and a plurality of the second probes are arranged at equal intervals along the circumferential direction around the center line of the second support rod.

[0022] As a further improvement of the present utility model, both the first support seat and the second support seat are in an inverted T shape.

[0023] As a further improvement of the present utility model, the number of the second fixtures and the test components is two each, and the two test components are both connected to the second up-and-down air cylinder.

[0024] The beneficial effects of the present utility model are as follows:

[0025] The present utility model first supports the product through the setting of the support component, then limits the product by inserting the support rod into the inner hole of the product, and then combines the material pushing component to push the product into the fixture, avoiding the skew of the product during placement, ensuring that the product is stably limited in the fixture, improving the stability of contact with the probe, and improving the accuracy of the withstand voltage test; the withstand voltage test is realized by using the probe, the probe has a long service life, and is located above for convenient observation of the situation and replacement; the second withstand voltage test mechanism for testing between copper sheets of the product is a double-station detection, which can reduce the probability of misdetection. Description of the Drawings

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Figure 1 Structural schematic diagram of the preferred embodiment of the present utility model;

[0028] Figure 2 For Figure 1 Enlarged schematic diagram of A in

[0029] Figure 3 Front view of the preferred embodiment of the present utility model;

[0030] Figure 4 Top view of the preferred embodiment of the present utility model;

[0031] Figure 5 Structural schematic diagram of the first withstand voltage test mechanism of the preferred embodiment of the present utility model without placing the commutator;

[0032] Figure 6 For Figure 5 Enlarged schematic diagram of B in

[0033] In the figure: 1. Substrate, 11. First fixture, 111. Fixture body, 112. Step hole, 113. Through groove, 114. Step, 12. Second fixture, 2. Bracket, 3. First withstand voltage testing mechanism, 31. First up-and-down air cylinder, 32. First vertical air cylinder, 33. First support rod, 34. First probe, 35. First support base, 4. First support component, 41. First lifting air cylinder, 42. First lifting rod, 5. First feeding component, 51. First feeding air cylinder, 52. First feeding block, 6. Second withstand voltage testing mechanism, 60. Second up-and-down air cylinder, 61. Testing component, 62. Second vertical air cylinder, 63. Second support rod, 64. Second probe, 65. Second support base, 7. Second support component, 71. Second lifting air cylinder, 72. Second lifting rod, 8. Second feeding component, 81. Second feeding air cylinder, 82. Second feeding block, 9. Commutator, 91. Inner hole, 92. Copper sheet. Detailed implementation manners

[0034] In order to enable those skilled in the art to better understand the technical solutions in the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0035] Please refer to Figures 1-6 , this application embodiment discloses a withstand voltage testing device, including: a substrate 1, in which a first fixture 11 and at least one second fixture 12 are arranged; a bracket 2, arranged on the substrate 1; a first withstand voltage testing mechanism 3, arranged on the bracket 2, the first withstand voltage testing mechanism 3 includes a first up-and-down air cylinder 31, a first vertical air cylinder 32 connected to the first up-and-down air cylinder 31, a first support rod 33 and a plurality of first probes 34 connected to the first vertical air cylinder 32; a first support component 4, at least a part of the first support component 4 can extend into the first fixture 11; a first feeding component 5, arranged on the substrate 1; a second withstand voltage testing mechanism 6, arranged on the bracket 2, the second withstand voltage testing mechanism 6 includes a second up-and-down air cylinder 60, at least one testing component 61 connected to the second up-and-down air cylinder 60, the testing component 61 includes a second vertical air cylinder 62, a second support rod 63 connected to the second vertical air cylinder 62 and a plurality of second probes 64; a second support component 7, at least a part of the second support component 7 can extend into the second fixture 12; a second feeding component 8, arranged on the substrate 1.

[0036] The first withstand voltage test mechanism 3 is used for withstand voltage test between copper sheet and inner hole, and the second withstand voltage test mechanism 6 is used for withstand voltage test between copper sheets. The next product is transferred to the first fixture 11 by the transfer mechanism and supported by the first support assembly 4, and the previous product is transferred to the second fixture 12 and supported by the second support assembly 7. The first support assembly 4 supports the next product and the second support assembly 7 supports the previous product. Then the first support rod 33 and the second support rod 63 extend into the inner hole of the product to limit the product. When the first support assembly 4 and the second support assembly 7 retreat, the first material shifting assembly 5 and the second material shifting assembly 8 accurately shift the corresponding product into the first fixture 11 and the second fixture 12 to prevent the next product and the previous product from being skewed at the first fixture 11 and the second fixture 12 after being placed by the transfer mechanism, so that the multiple copper sheets on the next product are in stable contact with the multiple first probes 34, and the multiple copper sheets on the previous product are in stable contact with the multiple second probes 64, thereby improving the accuracy of subsequent withstand voltage test.

[0037] Preferably, the first support assembly 4 includes a first lifting cylinder 41 and a first support rod 42 connected to the first lifting cylinder 41, and the second support assembly 7 includes a second lifting cylinder 71 and at least one second support rod 72 connected to the second lifting cylinder 71. The first lifting cylinder 41 drives the first support rod 42 to extend into or leave the first fixture 11, and the second lifting cylinder 71 drives the second support rod 72 to extend into or leave the second fixture 12. In the initial state, the first support rod 42 extends into the first fixture 11, and the second support rod 72 extends into the second fixture 12.

[0038] In this embodiment, the first fixture 11 and the second fixture 12 have the same structure. The first fixture 11 includes a fixture body 111 and a stepped hole 112 provided in the fixture body 111. The upper aperture of the stepped hole 112 is larger than the lower aperture of the stepped hole 112. A plurality of through grooves 113 are provided at intervals on the upper hole wall of the stepped hole 112. The provision of the through grooves 113 facilitates the placement of the copper sheet of the product, and a step 114 is formed in the stepped hole 112 to facilitate the support of the copper sheet, thereby positioning the commutator.

[0039] In order to facilitate the product stuck by the first support rod 33 and the second support rod 63 to be pushed into the first fixture 11 and the second fixture 12, it is preferred that the first material pusher assembly 5 includes a first material pusher cylinder 51 and a first material pusher block 52 connected to the first material pusher cylinder 51, and the second material pusher assembly 8 includes a second material pusher cylinder 81 and a second material pusher block 82 connected to the second material pusher cylinder 81.

[0040] In order to further ensure the speed and success rate of product removal, it is preferred that the free end surfaces of the first material removal block 52 and the second material removal block 82 are both circular.

[0041] Preferably, both the first material feeding cylinder 51 and the second material feeding cylinder 81 are pen-shaped cylinders.

[0042] To facilitate the first support rod 33 and the multiple first probes 34, preferably, the first vertical cylinder 32 is connected with a first support seat 35, and both the first support rod 33 and the multiple first probes 34 are connected to the first support seat 35. To facilitate the installation of the second support rod 63 and the multiple second probes 64, the second vertical cylinder 62 is connected with a second support seat 65, and both the second support rod 63 and the multiple second probes 64 are connected to the second support seat 65.

[0043] Specifically, the multiple first probes 34 are evenly spaced along the circumferential direction around the center line of the first support rod 33, and the multiple second probes 64 are evenly spaced along the circumferential direction around the center line of the second support rod 63, so as to better realize the one-to-one correspondence between the multiple first probes 34 and the multiple copper sheets, and realize the one-to-one correspondence between the multiple second probes 64 and the multiple copper sheets.

[0044] Preferably, both the first support seat 35 and the second support seat 65 are in an inverted T shape.

[0045] In this embodiment, the number of both the second fixture 12 and the test assembly 61 is two, and both the two test assemblies 61 are connected to the second up-and-down cylinder 60. In this embodiment, the test assembly 72 is set to two to realize double-station testing and avoid missed inspections. Preferably, the number of the second support rods 72 is two, so that when the second withstand voltage testing mechanism 6 performs double-station testing, the two second support rods 72 can respectively support the corresponding products.

[0046] When the utility model is in use, the latter commutator 9 is transferred to the first withstand voltage testing mechanism 3 by a transfer mechanism. First, the first vertical cylinder 32 descends, and the first support rod 33 is inserted into the inner hole 91 of the product. Then, the first lifting cylinder 41 descends. After reaching the position, the first material shifting cylinder 51 shifts the product and drops it into the first fixture 11. Multiple copper sheets 92 are respectively located in multiple through slots 113. The first upper and lower cylinder 31 drives multiple first probes 34 to press down to test the product. Each first probe 34 corresponds to one commutator copper sheet to form one path, and the first support rod 33 forms one path, which are connected to a withstand voltage detector. A high voltage is applied to check whether there is breakdown between the copper sheet 92 and the inner hole 91, etc. The result is output to the control system through the withstand voltage detector. The previous commutator 9 is transferred to the second withstand voltage testing mechanism 6 by a transfer mechanism. First, the second vertical cylinder 62 descends, and the second support rod 63 is inserted into the inner hole 91 of the product. Then, the second lifting cylinder 71 descends. After reaching the position, the second material shifting cylinder 81 shifts the product and drops it into the second fixture 12. Multiple copper sheets 92 are respectively located in multiple through slots 113. The second upper and lower cylinder 60 drives multiple second probes 64 to press down to test the product. Each second probe 64 corresponds to one commutator copper sheet. The odd-numbered copper sheets form one path, and the even-numbered copper sheets form one path, which are connected to a withstand voltage detector. A high voltage is applied to check whether there is short circuit between adjacent copper sheets 92, etc. The result is output to the control system through the withstand voltage detector.

[0047] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0048] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A withstand voltage test device, characterized in that: include: A substrate, wherein a first fixture and at least one second fixture are arranged in the substrate; A bracket, disposed on the substrate; A first pressure-resistant testing mechanism is disposed on the bracket, the first pressure-resistant testing mechanism comprising a first upper and lower cylinder, a first vertical cylinder connected to the first upper and lower cylinders, a first support rod connected to the first vertical cylinder, and a plurality of first probes; a first support assembly, wherein at least a portion of the first support assembly is capable of extending into the first fixture; A first material shifting component is disposed on the substrate; A second pressure-resistant test mechanism is provided on the bracket, the second pressure-resistant test mechanism comprises a second upper and lower cylinder, at least one test assembly connected to the second upper and lower cylinders, the test assembly comprises a second vertical cylinder, a second support rod connected to the second vertical cylinder, and a plurality of second probes; a second support assembly, wherein at least a portion of the second support assembly is capable of extending into the second fixture; The second material shifting component is arranged on the substrate.

2. A withstand voltage test device according to claim 1, characterized in that: The first support assembly includes a first lifting cylinder and a first support rod connected to the first lifting cylinder, and the second support assembly includes a second lifting cylinder and at least one second support rod connected to the second lifting cylinder.

3. A withstand voltage test device according to claim 1, characterized in that: The first jig has the same structure as the second jig. The first jig includes a jig body and a stepped hole arranged in the jig body. The upper hole diameter of the stepped hole is larger than the lower hole diameter of the stepped hole. A plurality of through grooves are arranged at intervals on the upper hole wall of the stepped hole.

4. A withstand voltage test device according to claim 1, characterized in that: The first material shifting assembly includes a first material shifting cylinder and a first material shifting block connected to the first material shifting cylinder, and the second material shifting assembly includes a second material shifting cylinder and a second material shifting block connected to the second material shifting cylinder.

5. A withstand voltage test device according to claim 4, characterized in that: The free end surfaces of the first material shifting block and the second material shifting block are both circular.

6. A withstand voltage test device according to claim 4, characterized in that: The first material-shifting cylinder and the second material-shifting cylinder are both pen-shaped cylinders.

7. A withstand voltage test device according to claim 1, characterized in that: The first vertical cylinder is connected to a first support seat, the first support rod and the first plurality of probes are connected to the first support seat, the second vertical cylinder is connected to a second support seat, the second support rod and the second plurality of probes are connected to the second support seat.

8. A withstand voltage test device according to claim 1 or 7, characterized in that: A plurality of the first probes are evenly spaced around the center line of the first support rod along the circumferential direction, and a plurality of the second probes are evenly spaced around the center line of the second support rod along the circumferential direction.

9. A withstand voltage test device according to claim 7, characterized in that: The first supporting seat and the second supporting seat are both in an inverted T shape.

10. A withstand voltage test device according to claim 1, characterized in that: The number of the second fixture and the number of the test components are both two, and the two test components are connected to the second upper and lower cylinders.

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