Digital bridge test fixture

Abstract

The utility model provides a digital bridge test fixture, which comprises a grab handle, clamping jaws oppositely arranged on the two sides of the grab handle, and a transmission line arranged in the grab handle and used for current transmission, the two clamping jaws are oppositely and elastically connected to the two sides of the grab handle, and the end parts of the two clamping jaws are respectively provided with a detection part used for abutting against a workpiece. The detection part comprises a connecting block which is arranged at the end part of the clamp and is connected with the transmission line and a plurality of conductive wires which are arranged on the connecting block and are used for abutting against the workpiece, and the plurality of conductive wires are uniformly distributed on the connecting block. A worker can elastically clamp the two ends of a workpiece through the detection parts of the two clamping jaws, the conductive wires on the detection parts abut against the ends of the workpiece, electrical detection of the workpiece is achieved, the conductive wires are evenly distributed on the connecting block, the conductive wires can fully abut against the end face of the workpiece, and the detection efficiency is improved. The contact surface with the end face of the workpiece is more uniform, and the test result is more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitor processing equipment, in particular to a digital bridge test fixture. Background Art

[0002] Electrode foil is a kind of aluminum foil made by a series of rolling, cleaning and cutting processes on high-purity aluminum ingots. It is a key raw material for the production of capacitors. After the aluminum material is processed into foil, the electrode foil is subjected to surface corrosion treatment and re-oxidation treatment, and then wound to make capacitors. The electrode foil includes corrosion foil and chemical foil. The aluminum foil before corrosion is called plain foil, the aluminum foil after corrosion is called corrosion foil, and the aluminum foil after re-oxidation treatment is called chemical foil.

[0003] The specific capacity detection of electrode foil requires the use of an LCR digital bridge. At present, Chinese patent publication No. CN219027287U discloses a special fixture for LCR digital bridge testing, including an upper clamp, a lower clamp, a rotating shaft and a torsion spring. The lower end surface of the upper clamp and the upper end surface of the lower clamp are provided with ear plates, the rotating shaft passes through the ear plates and is rotatably connected to the upper and lower clamps, the torsion spring is sleeved on the rotating shaft, the upper of the lower clamp is provided with wiring holes and fixing holes, the upper end surface of the lower clamp is provided with a conductive foil, the upper clamp is divided into a pressing section and a clamping section, the clamping section of the upper clamp is provided with a distance adjustment knob, and the lower end surface of the supporting end of the upper clamp is provided with a compression spring.

[0004] Although this special fixture for LCR digital bridge testing can clamp the electrode foil for specific capacitance detection, the electrode foil needs to be wound when processed into a capacitor. It is difficult to ensure that the two ends of the capacitor are completely flat when the electrode foil is wound. The comparative document and the existing test fixtures are difficult to adapt to the uneven surfaces at both ends of the capacitor, and the contact surface is uneven, which affects the test results. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a digital bridge test fixture for solving the problem in the prior art that the two ends of the capacitor are uneven and the existing fixture is difficult to contact and unevenly affects the test results.

[0006] To achieve the above-mentioned purpose and other related purposes, the utility model provides a digital bridge test fixture, comprising a handle, clamping jaws relatively arranged on both sides of the handle, and a transmission line arranged in the handle for current transmission, the two clamping jaws are relatively elastically connected to both sides of the handle, the ends of the two clamping jaws are provided with a detection part for contacting a workpiece, the detection part includes a connecting block arranged at the end of the fixture and connected to the transmission line and a conductive wire arranged on the connecting block for contacting the workpiece, and a plurality of the conductive wires are provided and evenly distributed on the connecting block.

[0007] By adopting the above technical solution, the staff can elastically clamp the two ends of the workpiece through the detection parts of the two jaws, and use the conductive wires on the detection part to contact the ends of the workpiece to achieve electrical detection of the workpiece. Since the conductive wires are evenly distributed on the connecting block, multiple conductive wires can be used to fully contact the end face of the workpiece, the contact surface with the end face of the workpiece is more uniform, and the test results are more accurate.

[0008] In one embodiment of the present invention, the clamping jaw comprises an elastic bending portion connected to the handle and a clamping portion for clamping the workpiece, the clamping portion is arranged in an L shape, and the ends of the two clamping jaws are arranged opposite to each other.

[0009] By adopting the above technical solution, the elastic bending part can realize elastic clamping of the workpiece, and then the clamping part can relatively clamp the two sides of the workpiece, making the operation simpler and more efficient.

[0010] In an embodiment of the present invention, the conductive threads are densely arranged on the connecting block, and the end surfaces of the conductive threads form arc surfaces.

[0011] By adopting the above technical solution, since the conductive wire is in a wire shape, it can be deformed to a certain extent when subjected to force, so that multiple conductive wires are arranged into an arc surface, which is more convenient for clamping the workpiece.

[0012] In one embodiment of the present invention, a plurality of transmission lines are provided for the digital bridge, and the transmission lines are provided in the handle. The transmission lines are respectively provided at the inner sides of the two clamping jaws and connected to the connection block.

[0013] By adopting the above technical solution, the transmission line is arranged in the handle, which has higher space utilization and is more convenient for operation by the staff.

[0014] In one embodiment of the present invention, the clamping portion of the clamping jaw and the handle are wrapped with an insulating layer.

[0015] By adopting the above technical solution, an insulation protection effect is achieved.

[0016] In one embodiment of the present invention, anti-slip grooves are further provided on the elastic bending portion of the clamping jaw.

[0017] By adopting the above technical solution, it is convenient for workers to operate the two clamping claws.

[0018] As described above, the digital bridge test fixture of the utility model has the following beneficial effects: the staff can elastically clamp the two ends of the workpiece through the detection parts of the two jaws, and use the conductive wires on the detection parts to contact the ends of the workpiece to achieve electrical detection of the workpiece. Since the conductive wires are evenly distributed on the connecting block, multiple conductive wires can be used to fully contact the end face of the workpiece, the contact surface with the end face of the workpiece is more uniform, and the test results are more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Shown is a schematic diagram of the overall structure disclosed in the embodiment of the utility model;

[0020] Figure 2 Shown is a schematic structural diagram of the clamping jaws disclosed in an embodiment of the present utility model.

[0021] Component number description

[0022] 1. Handle; 2. Clamping claw; 3. Transmission line; 4. Elastic bending part; 5. Clamping part; 6. Detection part; 7. Connection block; 8. Conductive wire; 9. Anti-slip pattern. DETAILED DESCRIPTION

[0023] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0024] See also Figure 1 to Figure 2 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change in the proportion relationship, or adjustment of the size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the utility model without substantially changing the technical content.

[0025] like Figure 1 , Figure 2 As shown, the utility model provides a digital bridge test fixture, including a handle 1, clamping jaws 2 relatively arranged on both sides of the handle 1, and a transmission line 3 arranged in the handle 1 for current transmission, the two clamping jaws 2 are relatively elastically connected to both sides of the handle 1, and can clamp both ends of the workpiece through the clamping jaws 2.

[0026] The clamping jaw 2 includes an elastic bending portion 4 elastically connected to the handle 1, a clamping portion 5 for clamping a workpiece, and a detection portion 6 arranged at the end of the clamping portion 5. The elastic bending portion 4 is an elastic metal sheet, the clamping portion 5 is located at the end of the clamping jaw 2, and the clamping portion 5 is formed in an L shape so that the clamping ends of the two clamping jaws 2 can face each other.

[0027] The detection part 6 includes a connecting block 7 arranged at the end of the clamp and connected to the transmission line 3, and a conductive wire 8 arranged on the connecting block 7 for contacting the workpiece. There are multiple conductive wires 8 and they are evenly distributed on the connecting block 7. The conductive wires 8 are densely arranged on the connecting block 7, and the end faces of the multiple conductive wires 8 form an arc surface. The connecting block 7 is set to be cylindrical.

[0028] The transmission lines 3 are arranged differently for the digital bridge, 4 in this embodiment, and are arranged in the handle 1 . The transmission lines 3 are distributed on the inner sides of the two clamping jaws 2 and connected to the connecting block 7 , and two transmission lines 3 are distributed on the inner side of each clamping jaw 2 .

[0029] The clamping portion 5 of the clamping jaw 2 and the handle 1 are wrapped with an insulating layer, and the elastic bending portion 4 of the clamping jaw 2 is provided with anti-slip grooves 9.

[0030] In summary, the staff of the utility model can elastically clamp the two ends of the workpiece through the detection part 6 of the two jaws 2, and use the conductive wire on the detection part 6 to contact the end of the workpiece to achieve electrical detection of the workpiece. Since the conductive wires 8 are evenly distributed on the connecting block 7, multiple conductive wires 8 can be used to fully contact the end face of the workpiece, the contact surface with the end face of the workpiece is more uniform, and the test result is more accurate.

[0031] Therefore, the utility model effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0032] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A digital bridge test fixture, characterized in that: It includes a handle, clamping jaws arranged on both sides of the handle and a transmission line arranged in the handle for current transmission. The two clamping jaws are relatively elastically connected to the two sides of the handle. The ends of the two clamping jaws are provided with a detection part for contacting the workpiece. The detection part includes a connecting block arranged at the end of the clamp and connected to the transmission line and a conductive wire arranged on the connecting block for contacting the workpiece. A plurality of conductive wires are provided and are evenly distributed on the connecting block.

2. The digital bridge test fixture according to claim 1, characterized in that: The clamping jaw comprises an elastic bending portion connected to the handle and a clamping portion for clamping a workpiece. The clamping portion is arranged in an L shape, and the ends of the two clamping jaws are arranged opposite to each other.

3. The digital bridge test fixture according to claim 1, characterized in that: The conductive threads are densely arranged on the connection block, and the end surfaces of the plurality of conductive threads form arc surfaces.

4. The digital bridge test fixture according to claim 1, characterized in that: A plurality of transmission lines are provided corresponding to the digital bridge, and the transmission lines are provided in the handle. The transmission lines are respectively provided at the inner sides of the two clamping jaws and connected to the connection block.

5. The digital bridge test fixture according to claim 1, characterized in that: The clamping portion and the handle of the clamping jaw are also wrapped with an insulating layer.

6. The digital bridge test fixture according to claim 1, characterized in that: The elastic bending portion of the clamping jaw is also provided with anti-slip grooves.

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