Capacitor film clamping device

Abstract

The utility model discloses a capacitor film clamping device, which relates to the technical field of capacitor film clamping, and comprises an upper clamping plate and a lower clamping plate, the upper surface of the lower clamping plate is in contact with the lower surface of the upper clamping plate, and the lower clamping plate and the upper clamping plate are provided with pre-fixing modules for pre-fixing a capacitor film. Locking blocks are arranged at the left end and the right end of the upper clamping plate, locking assemblies acting on the locking blocks are arranged at the left end and the right end of the lower clamping plate, an extension plate is arranged at the front end of the lower clamping plate, and an adjustable alignment guide structure is arranged on the extension plate. According to the utility model, through the adjustable alignment guide structure, an operator can conveniently feed a capacitor film between the upper clamping plate and the lower clamping plate in a state of being vertical to the front end of the lower clamping plate, so that the accuracy of a test result is improved while the test efficiency is not reduced; the capacitor film is pre-fixed between the upper clamping plate and the lower clamping plate after entering between the upper clamping plate and the lower clamping plate, and the capacitor film is prevented from inclining when the upper clamping plate and the lower clamping plate are locked.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitor film clamping, in particular to a capacitor film clamping device. Background Technique

[0002] Capacitor film is a material specifically used for manufacturing film capacitors. Due to its advantages such as simple structure, high stability, and good insulation performance, film capacitors are widely used in various electronic devices and circuits. The performance and reliability of film capacitors not only depend on the electrical characteristics of the capacitor film but also on its mechanical strength. Mechanical strength testing can ensure that the capacitor film will not be damaged or deformed during manufacturing, assembly, and use, thus guaranteeing the long-term stability and reliability of the capacitor.

[0003] When conducting a tensile strength test on a capacitor film, both ends of the capacitor film need to be fixed to the clamping devices on a tensile testing machine respectively. Generally, the clamping device first requires manually placing the capacitor film into the clamping device and then locking it. When locking, since the capacitor film is maintained in the clamping device by hand, the capacitor film is prone to skew with the movement of the hand. The capacitor film set skew on the clamping device will result in inaccurate test results during the tensile test, and when adjusting the skewed capacitor film, it is necessary to loosen the clamping device, which is rather troublesome in actual use.

[0004] Based on this, a capacitor film clamping device is now provided to eliminate the drawbacks of existing devices. Content of the Utility Model

[0005] The purpose of the utility model is to provide a capacitor film clamping device to solve the problems in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A capacitor film clamping device includes a lower clamping plate, the rear side of the lower clamping plate is connected to a tensile testing machine through a connecting block, an upper clamping plate is arranged above the lower clamping plate, the upper surface of the lower clamping plate contacts the lower surface of the upper clamping plate, a pre-fixing module for pre-fixing the capacitor film is arranged on the lower clamping plate and the upper clamping plate, locking blocks are arranged at the left and right ends of the upper clamping plate, locking components acting on the locking blocks are arranged at the left and right ends of the lower clamping plate, an extension plate with an upper surface flush with the upper surface of the lower clamping plate is arranged at the front end of the lower clamping plate, and an adjustable alignment guiding structure for facilitating the clamping of the capacitor film perpendicular to the front end of the lower clamping plate is arranged on the extension plate.

[0008] Based on the above technical solutions, the utility model also provides the following optional technical solutions:

[0009] In an alternative solution: The pre-fixing module includes sliding columns arranged at four corners on the upper surface of the lower clamping plate. Perforations are provided on the upper clamping plate corresponding to the positions of the sliding columns. The sliding columns slide through the upper clamping plate at the perforations. A gasket is provided at the top of the sliding column. A second connecting bolt that penetrates the gasket and is threadedly connected to the top of the sliding column is provided on the upper surface of the gasket. A spring is provided between the upper surface of the upper clamping plate and the lower surface of the gasket. Opening and closing auxiliary blocks are provided at the front end of the right side surfaces of the lower clamping plate and the upper clamping plate.

[0010] In an alternative solution: The opening and closing auxiliary block includes a leveraging block whose lower end is connected to the front end of the right side surface of the lower clamping plate, and the upper end of an opening block is connected to the front end of the right side surface of the upper clamping plate.

[0011] In an alternative solution: The locking assembly includes locking frames arranged at the left and right ends of the lower clamping plate. A first connecting bolt is provided through the lower end of the locking frame and is threadedly connected to the lower clamping plate. A locking block is located inside the locking frame, and a locking bolt that penetrates up and down is threadedly connected to the top of the locking frame.

[0012] In an alternative solution: The adjustable alignment and guiding structure includes a square groove provided on the upper surface of the extension plate. A rack with teeth facing forward slides on the inner rear wall of the square groove, and a rack with teeth facing backward slides on the inner front wall of the square groove. A gear meshes between the two racks. The gear is rotatably arranged at the bottom of the square groove. A cover plate groove is provided at the top of the square groove, and a cover plate is provided in the cover plate groove. The upper surface of the cover plate is flush with the upper surface of the extension plate. A sliding groove that penetrates the cover plate is provided on the cover plate corresponding to the sliding path of the rack. The width of the sliding groove is smaller than the width of the upper surface of the rack. A sliding block is provided in the sliding groove. The lower end of the sliding block is connected to the upper surface of the rack, and the upper end of the sliding block is connected to a guiding plate. The guiding plate is vertically slidably arranged on the upper surface of the extension plate and is perpendicular to the front end surface of the lower clamping plate.

[0013] In an alternative solution: A labor-saving turning handle is provided through the top of the locking bolt.

[0014] In an alternative solution: The upper surface of the lower clamping plate is rough, and the lower surface of the upper clamping plate is rough.

[0015] In an alternative solution: The contact surfaces of the sliding columns and the perforations are smooth.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] Through the adjustable alignment and guiding structure of the present utility model, it is convenient for the operator to feed the capacitor film between the upper and lower clamping plates in a state perpendicular to the front end of the lower clamping plate, improving the accuracy of the test results without reducing the test efficiency.

[0018] The utility model realizes pre - fixing a capacitor film between upper and lower clamping plates after the capacitor film enters between the upper and lower clamping plates through a pre - fixing module, preventing the capacitor film from skewing when the upper and lower clamping plates are locked. Brief Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the utility model.

[0020] Figure 2 For the utility model Figure 1 Partial enlarged view of A in it.

[0021] Figure 3 For the utility model Figure 1 Partial enlarged view of B in it.

[0022] Figure 4 It is a schematic structural diagram of the utility model after removing the cover plate.

[0023] Figure 5 For the utility model Figure 4 Partial enlarged view of C in it.

[0024] Figure 6 For the utility model Figure 4 Partial enlarged view of D in it.

[0025] Annotation of reference numerals in the drawings: 101, lower clamping plate; 102, upper clamping plate; 103, locking block; 104, locking frame; 105, locking bolt; 106, first connecting bolt; 107, connecting block; 108, labor - saving turning handle; 201, sliding column; 202, perforation; 203, gasket; 204, second connecting bolt; 205, spring; 206, force - borrowing block; 207, spreading block; 301, extension plate; 302, square groove; 303, gear; 304, rack; 305, cover plate; 306, cover - plate groove; 307, sliding groove; 308, sliding block; 309, guiding plate. Detailed Description of the Embodiment

[0026] In order to make the purpose, technical solutions and advantages of the utility model clearer, the following further elaborates on the utility model in conjunction with the drawings and embodiments.

[0027] In one embodiment, as Figures 1-6As shown, a capacitive film clamping device includes a lower clamping plate 101, the rear side of the lower clamping plate 101 is connected to a tensile testing machine through a connecting block 107, an upper clamping plate 102 is arranged at the upper end of the lower clamping plate 101, the upper surface of the lower clamping plate 101 contacts the lower surface of the upper clamping plate 102, a pre-fixing module for pre-fixing the capacitive film is arranged on the lower clamping plate 101 and the upper clamping plate 102, locking blocks 103 are arranged at the left and right ends of the upper clamping plate 102, locking components acting on the locking blocks 103 are arranged at the left and right ends of the lower clamping plate 101, an extension plate 301 with an upper surface flush with the upper surface of the lower clamping plate 101 is arranged at the front end of the lower clamping plate 101, and an adjustable alignment guiding structure for facilitating the clamping of the capacitive film perpendicular to the front end of the lower clamping plate 101 is arranged on the extension plate 301.

[0028] In this embodiment, when an operator clamps the capacitive film, the adjustable alignment guiding structure facilitates the operator to align the capacitive film with the front end of the lower clamping plate 101, and the pre-fixing module pre-fixes the capacitive film entering between the lower clamping plate 101 and the upper clamping plate 102, avoiding the skew of the aligned capacitive film when the locking components are locked.

[0029] In one embodiment, as Figure 1 shown, the pre-fixing module includes sliding columns 201 arranged at four corners on the upper surface of the lower clamping plate 101, perforations 202 are arranged at the corresponding positions of the upper clamping plate 102 for the sliding columns 201, the sliding columns 201 slide through the upper clamping plate 102 at the perforations 202, a gasket 203 is arranged at the top of the sliding columns 201, a second connecting bolt 204 passing through the gasket 203 and threadedly connected to the top of the sliding columns 201 is arranged on the upper surface of the gasket 203, a spring 205 is arranged between the upper surface of the upper clamping plate 102 and the lower surface of the gasket 203, opening and closing auxiliary blocks are arranged at the front ends of the right sides of the lower clamping plate 101 and the upper clamping plate 102, the upper clamping plate 102 slides up and down on the sliding columns 201, in the initial state, the spring 205 presses the upper clamping plate 102 on the lower clamping plate 101, the upper clamping plate 102 and the lower clamping plate 101 are separated by the opening and closing auxiliary blocks, the capacitive film is placed between the lower clamping plate 101 and the upper clamping plate 102, and then the opening and closing auxiliary blocks are released, and the spring 205 presses the upper clamping plate 102 on the upper surface of the lower clamping plate 101 again to realize the pre-fixing of the capacitive film.

[0030] In one embodiment, as Figure 1 shown, the opening and closing auxiliary block includes a leverage block 206 with the lower end connected to the front end of the right side of the lower clamping plate 101, the upper end of an opening block 207 is connected to the front end of the right side of the upper clamping plate 102, the thumb is placed on the upper end of the leverage block 206, the index finger holds the lower end of the opening block 207, and force is applied to separate the lower clamping plate 101 and the upper clamping plate 102.

[0031] In one embodiment, as Figure 1 andFigure 4 As shown, the locking assembly includes locking brackets 104 provided at the left and right ends of the lower clamping plate 101. A first connecting bolt 106 is provided through the lower end of the locking bracket 104, and the first connecting bolt 106 is threadedly connected to the lower clamping plate 101. The locking block 103 is located within the locking bracket 104. The top of the locking bracket 104 is threadedly connected with a locking bolt 105 that penetrates up and down. In the initial state, the lower end of the locking bolt 105 is far from the upper surface of the locking block 103. After the capacitor film is pre-fixed, the locking bolt 105 is rotated so that the lower end of the locking bolt 105 contacts the upper surface of the locking block 103 and the locking bolt 105 is further rotated to press the upper clamping plate 102 against the lower clamping plate 101 through the locking block 103, thereby clamping the film capacitor between the lower clamping plate 101 and the upper clamping plate 102.

[0032] In one embodiment, as Figures 1-6 shown, the adjustable alignment guiding structure includes a square groove 302 provided on the upper surface of the extension plate 301. A rack 304 with teeth facing forward is slidably provided on the inner rear wall of the square groove 302, and a rack 304 with teeth facing backward is slidably provided on the inner front wall of the square groove 302. A gear 303 is engaged between the two racks 304. The gear 303 is rotatably provided at the bottom of the square groove 302. A cover plate groove 306 is provided at the top of the square groove 302, and a cover plate 305 is provided in the cover plate groove 306. The upper surface of the cover plate 305 is flush with the upper surface of the extension plate 301. A sliding groove 307 penetrating the cover plate 305 is provided on the cover plate 305 corresponding to the sliding path of the rack 304. The width of the sliding groove 307 is smaller than the width of the upper surface of the rack 304. A sliding block 308 is provided in the sliding groove 307. The lower end of the sliding block 308 is connected to the upper surface of the rack 304, and the upper end of the sliding block 308 is connected to a guiding plate 309. The guiding plate 309 is vertically slidably provided on the upper surface of the extension plate 301 and is perpendicular to the front end face of the lower clamping plate 101. When clamping the capacitor film, the guiding plate 309 facilitates the operator to place the capacitor film perpendicular to the front end of the lower clamping plate 101 between the lower clamping plate 101 and the upper clamping plate 102. By pulling one side of the guiding plate 309, the guiding plate 309 drives the sliding block 308 to slide in the sliding groove 307. The sliding groove 307 drives the rack 304 to slide in the square groove 302. The rack 304 drives the other rack 304 to slide synchronously through the gear 303. The other rack 304 finally drives the other guiding plate 309, that is, pulling one side of the guiding plate 309 causes the two guiding plates 309 to move closer to the middle or separate from each other on both sides at the front end of the lower clamping plate 101, so that the distance between the two guiding plates 309 is consistent with the width of the capacitor film to be tested. Placing the capacitor film between the two guiding plates 309 can make the capacitor film perpendicular to the front end of the lower clamping plate 101, improving the efficiency of pre-fixing the capacitor film sample and the accuracy of the tensile test of the capacitor film.

[0033] In one embodiment, Figure 1 As shown, a labor-saving turning handle 108 is provided through the top of the locking bolt 105, and no tool is needed when turning the locking bolt 105, which is more convenient to use.

[0034] In one embodiment, Figure 1 As shown, the upper surface of the lower clamping plate 101 is rough, and the lower surface of the upper clamping plate 102 is rough, so as to improve the firmness when clamping the capacitor film.

[0035] In one embodiment, Figure 1 As shown, the contact surface between the sliding column 201 and the through hole 202 is smooth, which saves more effort when the upper clamping plate 102 is separated from the upper surface of the lower clamping plate 101 by the lever block 206 and the opening block 207 .

[0036] The above embodiment discloses a capacitor film clamping device, wherein the guide plate 309 on one side is pulled, and the guide plate 309 drives the sliding block 308 to slide in the sliding groove 307, and the sliding groove 307 drives the rack 304 to slide in the square groove 302, and the rack 304 drives the rack 304 on the other side to slide synchronously through the gear 303, and the rack 304 on the other side finally drives the guide plate 309 on the other side, that is, the guide plate 309 on one side is pulled so that the two guide plates 309 are close to each other in the middle or separated from each other at the front end of the lower clamping plate 101, so that the spacing between the two guide plates 309 is consistent with the width of the capacitor film to be tested, and the capacitor film can be placed between the two guide plates 309 to make the capacitor film perpendicular to the lower clamping plate 101. The front end of plate 101 is used to rotate the locking bolt 105 counterclockwise through the labor-saving turning handle 108, so that the lower end of the locking bolt 105 leaves the upper surface of the locking block 103, the thumb is placed on the upper end of the lever block 206, and the index finger is clasped with the lower end of the opening block 207, and the lower clamping plate 101 is separated from the upper clamping plate 102 by force, and the capacitor film is sent between the lower clamping plate 101 and the upper clamping plate 102, and the opening block 207 is loosened. The spring 205 presses the upper clamping plate 102 on the upper surface of the lower clamping plate 101 to pre-fix the capacitor film, and the locking bolt 105 is rotated clockwise so that the lower end of the locking bolt 105 is against the upper surface of the locking block 103 to press the upper clamping plate 102 tightly against the lower clamping plate 101 to clamp the capacitor film.

[0037] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A capacitive film clamping device, comprising a lower clamping plate (101), the rear side of the lower clamping plate (101) is connected to a tensile testing machine through a connecting block (107); It is characterized in that The upper end of the lower clamping plate (101) is provided with an upper clamping plate (102), the upper surface of the lower clamping plate (101) contacts the lower surface of the upper clamping plate (102), and a pre-fixing module for pre-fixing the capacitive film is provided on the lower clamping plate (101) and the upper clamping plate (102). Locking blocks (103) are provided at the left and right ends of the upper clamping plate (102), and locking components acting on the locking blocks (103) are provided at the left and right ends of the lower clamping plate (101). The front end of the lower clamping plate (101) is provided with an extension plate (301) whose upper surface is flush with the upper surface of the lower clamping plate (101), and an adjustable alignment guiding structure for facilitating the clamping of the capacitive film perpendicular to the front end of the lower clamping plate (101) is provided on the extension plate (301).

2. The capacitive film clamping device according to claim 1, wherein, The pre-fixing module includes sliding columns (201) arranged at four corners on the upper surface of the lower clamping plate (101). Through holes (202) are provided on the upper clamping plate (102) at positions corresponding to the sliding columns (201). The sliding columns (201) slide through the upper clamping plate (102) at the through holes (202). A gasket (203) is provided at the top of the sliding column (201). A second connecting bolt (204) passing through the gasket (203) and threadedly connected to the top of the sliding column (201) is provided on the upper surface of the gasket (203). A spring (205) is provided between the upper surface of the upper clamping plate (102) and the lower surface of the gasket (203). Opening and closing auxiliary blocks are provided at the front ends of the right sides of the lower clamping plate (101) and the upper clamping plate (102).

3. The capacitive film clamping device according to claim 2, characterized in that, The opening and closing auxiliary block includes a leveraging block (206) whose lower end is connected to the front end of the right side of the lower clamping plate (101), and the upper end of the opening block (207) is connected to the front end of the right side of the upper clamping plate (102).

4. A capacitive film clamping device according to claim 1, characterized in that, The locking component includes locking frames (104) arranged at the left and right ends of the lower clamping plate (101). The lower end of the locking frame (104) is provided with a first connecting bolt (106) passing through it, and the first connecting bolt (106) is threadedly connected to the lower clamping plate (101). The locking block (103) is located inside the locking frame (104), and a locking bolt (105) passing through up and down is threadedly connected to the top of the locking frame (104).

5. A capacitance film clamping device according to claim 1, characterized in that, The adjustable alignment guiding structure includes a square groove (302) provided on the upper surface of the extension plate (301). A rack (304) with its teeth facing forward is slidably provided on the inner rear wall of the square groove (302), and a rack (304) with its teeth facing backward is slidably provided on the inner front wall of the square groove (302). A gear (303) is meshed between the two racks (304). The gear (303) is rotatably arranged at the bottom of the square groove (302). A cover plate groove (306) is provided at the top of the square groove (302), and a cover plate (305) is arranged in the cover plate groove (306). The upper surface of the cover plate (305) is flush with the upper surface of the extension plate (301). A sliding groove (307) penetrating the cover plate (305) is provided on the cover plate (305) corresponding to the sliding path of the rack (304). The width of the sliding groove (307) is smaller than the width of the upper surface of the rack (304). A sliding block (308) is arranged in the sliding groove (307). The lower end of the sliding block (308) is connected to the upper surface of the rack (304), and the upper end of the sliding block (308) is connected to a guiding plate (309). The guiding plate (309) is vertically slidably arranged on the upper surface of the extension plate (301) and is perpendicular to the front end face of the lower clamping plate (101).

6. A capacitance film clamping device according to claim 4, characterized in that, A labor-saving turning handle (108) is provided through the top of the locking bolt (105).

7. A capacitive thin film clamping device according to claim 1, wherein The upper surface of the lower clamping plate (101) is rough, and the lower surface of the upper clamping plate (102) is rough.

8. A capacitance film clamping device according to claim 2, wherein The contact surface between the sliding column (201) and the through hole (202) is smooth.

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