Magnetic type normally-closed clamp

Abstract

The invention relates to a magnetic type normally-closed clamp which comprises the components of a fixed clamping arm which is provided with a fixed lug at the middle section and extends out of a clamping bottom surface at the bottom end; the middle section of the swinging clamping arm is provided with a swinging convex lug, the bottom end of the swinging clamping arm extends out of the clamping top surface, and a pivot penetrates through the fixed convex lug and the swinging convex lug; the pair of magnets are oppositely arranged on the fixed clamping arm and the swinging clamping arm, so that the clamping top surface is normally close to the clamping bottom surface to form clamping force; and the clamp opening wheel is arranged on the swinging clamp arm, and the arrangement position of the clamp opening wheel is higher than the swinging convex lug. Therefore, the clamping device is used for solving the problem that the clamping force is gradually reduced in the prior art, and has the effect of continuous and stable clamping force.

Description

Technical Field

[0001] The invention relates to a magnetic normally closed clamp, and in particular to a design that utilizes magnets to maintain a continuous and stable clamping force. Background Art

[0002] The thin film electroplating method is to horizontally transfer the film to be plated through the electroplating tank for electroplating to form a composite copper foil, and the horizontal transmission mechanism of the film to be plated includes two sets of transmission elements, and any one set of transmission components includes a driving wheel, a driven wheel and a transmission steel belt, and the transmission steel belt is wound around the driving wheel and the driven wheel, and the clamps can be continuously set on the two sets of transmission steel belts, and the two consecutive rows of clamps facing each other can clamp the film to be plated and horizontally transfer it through the electroplating tank for electroplating; however, the traditional clamp used to clamp the film to be plated uses a spring to generate the clamping force provided by the clamp, but the spring has the problem of elastic fatigue, resulting in the clamp having a problem of gradual decrease in clamping force after a period of use and needing to be replaced. Summary of the invention

[0003] In order to solve the problem of the gradual decrease of clamping force in the prior art, the present invention provides a magnetic normally closed clamp, which has the effect of continuous and stable clamping force and the effect of simultaneously conducting electricity and electroplating the top and bottom surfaces of the clamped object.

[0004] The technical solution adopted by the present invention to solve the technical problem is:

[0005] A magnetic normally closed clamp comprises: a fixed clamp arm, the middle section of which has a fixed lug, and the bottom end of which extends a clamping bottom surface; a swing clamp arm, the middle section of which has a swing lug, and the bottom end of which extends a clamping top surface, and a pivot is provided through the fixed lug and the swing lug; a pair of magnets are arranged on the fixed clamp arm and the swing clamp arm relative to each other, so that the clamping top surface is normally close to the clamping bottom surface to form a clamping force; and an opening clamp wheel, which is arranged on the swing clamp arm, and the opening clamp wheel is arranged at a position higher than the swing lug.

[0006] In addition, the pair of magnets are arranged on the fixed clamp arm and the swing clamp arm in a direction of attraction, and the arrangement position of the pair of magnets is lower than the fixed lug and the swing lug. A conductive part extends from the top of the fixed clamp arm, and the conductive part is provided with a conductive component. The clamping top surface is provided with a conductive top plate, and the clamping bottom surface is provided with a conductive bottom plate. The conductive top plate and the conductive bottom plate are each surrounded by an insulating rubber ring. The conductive component is provided with a positioning seat on the conductive part, and the positioning seat is provided with at least one longitudinal slide groove, and the conductive block is placed in the positioning seat, and a positioning pin is inserted through the conductive block and the longitudinal slide groove, and at least one spring is provided between the top surface of the conductive block and the positioning seat. An insulating back plate is provided on the rear side of the fixed clamp arm, and a conductive belt is connected between the fixed clamp arm and the swing clamp arm, and the bottom sections of the fixed clamp arm and the swing clamp arm are each provided with an insulating rubber layer.

[0007] The beneficial effects of the present invention are that it has the effect of maintaining a continuous and stable clamping force and the effect of simultaneously conducting electricity and electroplating the top surface and the bottom surface of the clamped object. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0009] Figure 1 It is a structural stereogram of the present invention.

[0010] Figure 2 It is a structural side view of the present invention.

[0011] Description of the numbers in the figure:

[0012] 10Fixed clamp arm

[0013] 11 Fixing lugs

[0014] 12 Clamping bottom surface

[0015] 13 Conductive part

[0016] 14 Conductive film

[0017] 15 Insulation layer

[0018] 16 Insulation back plate

[0019] 20 Swing clamp arm

[0020] 21 Swing lugs

[0021] 22 Clamping top surface

[0022] 23 Pivot

[0023] 24 Conductive top sheet

[0024] 25 Insulation layer

[0025] 30 Magnets

[0026] 40 conductive components

[0027] 41 Positioning seat

[0028] 42 longitudinal chute

[0029] 43 conductive block

[0030] 44 positioning pin

[0031] 45 Spring

[0032] 50 Conductive tape

[0033] 60 opening clamp wheel DETAILED DESCRIPTION

[0034] First, see Figure 1, Figure 2 As shown, the present invention comprises: a fixed clamp arm 10, the middle section of which has a fixed lug 11, a clamping bottom surface 12 extending from the bottom end, and a conductive portion 13 extending from the top end, the clamping bottom surface 12 is provided with a conductive bottom sheet 14, the conductive bottom sheet 14 is surrounded by an insulating rubber ring (not shown in the figure), the bottom section of the fixed clamp arm 10 is provided with an insulating rubber layer 15, and the rear side of the fixed clamp arm 10 is provided with an insulating back plate 16; a swing clamp arm 20, the middle section of which has a swing lug 21, a clamping top surface 22 extending from the bottom end, and a pivot 23 passing through the fixed lug 11 and the swing lug 21, the clamping top surface 22 is provided with a conductive top sheet 24, the conductive top sheet 24 is surrounded by an insulating rubber ring (not shown in the figure), and the bottom section of the swing clamp arm 20 is provided with an insulating rubber layer 25; a pair of magnets 30, which are arranged relative to each other in the direction of attraction. Placed between the fixed clamp arm 10 and the swing clamp arm 20, the setting position of the pair of magnets 30 is lower than the fixed lug 11 and the swing lug 21, so that the clamping top surface 22 is normally close to the clamping bottom surface 12 to form a clamping force; the conductive component 40, a positioning seat 41 is set on the conductive part 13, the positioning seat 41 is provided with at least one longitudinal slide groove 42, and the conductive block 43 is placed in the positioning seat 41, and a positioning pin 44 is penetrated between the conductive block 43 and the longitudinal slide groove 42, and at least one spring 45 is provided between the top surface of the conductive block 43 and the positioning seat 41; a conductive belt 50, connected between the fixed clamp arm 10 and the swing clamp arm 20; and an opening clamp wheel 60, set on the swing clamp arm 20, and the setting position of the opening clamp wheel 60 is higher than the swing lug 21.

[0035] Based on the above structure, the present invention utilizes a pair of magnets 30 to allow the clamping top surface 22 of the swing clamping arm 20 to normally be close to the clamping bottom surface 12 of the fixed clamping arm 10, and a clamping force sufficient to clamp the film to be electroplated (the clamped object) is formed between the clamping top surface 22 and the clamping bottom surface 12, and the attractive force (or repulsive force) of the magnet 30 can be continuously maintained; therefore, the present invention has the effect of continuous and stable clamping force. Furthermore, the conductive component 40 guides the plating current into the fixed clamp arm 10, so that the conductive bottom film 14 of the clamping bottom surface 12 conducts the plating current to the bottom surface of the film to be plated, and guides the plating current into the swing clamp arm 20 through the fixed lug 11 and the swing lug 21 plus the conductive belt 50, so that the conductive top film 24 of the clamping top surface 22 conducts the plating current to the top surface of the film to be plated. In the process of clamping the film to be plated, the top and bottom surfaces of the film to be plated (the clamped object) are electroplated at the same time, and the top and bottom surfaces of the clamped object are simultaneously conductively plated.

[0036] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A magnetic normally closed clamp, characterized in that: include: A fixed clamp arm, with a fixing lug in the middle section and a bottom end extending out of the clamping bottom surface; A swing clamp arm, the middle section of which has a swing lug, the bottom end of which extends out of the clamping top surface, and a pivot is provided through the fixed lug and the swing lug; A pair of magnets are disposed opposite to the fixed clamp arm and the swing clamp arm so that the clamping top surface is normally close to the clamping bottom surface to form a clamping force; and The clamping wheel is arranged on the swing clamping arm, and the arrangement position of the clamping wheel is higher than the swing lug.

2. The magnetic normally closed clamp according to claim 1, characterized in that: The pair of magnets are arranged on the fixed clamp arm and the swing clamp arm in a mutually attracting direction, and the arrangement position of the pair of magnets is lower than the fixed lug and the swing lug.

3. The magnetic normally closed clamp according to claim 1 or 2, characterized in that: A conductive part extends from the top of the fixed clamp arm, and the conductive part is provided with a conductive component. The clamping top surface is provided with a conductive top sheet, and the clamping bottom surface is provided with a conductive bottom sheet. The conductive top sheet and the conductive bottom sheet are each surrounded by an insulating rubber ring.

4. The magnetic normally closed clamp according to claim 3, characterized in that: The conductive component is provided with a positioning seat on the conductive part, and the positioning seat is provided with at least one longitudinal slot, and the conductive block is placed in the positioning seat, and a positioning pin is passed through the conductive block and the longitudinal slot, and at least one spring is provided between the top surface of the conductive block and the positioning seat.

5. The magnetic normally closed clamp according to claim 3, characterized in that: An insulating back plate is arranged at the rear side of the fixed clamp arm, a conductive belt is connected between the fixed clamp arm and the swing clamp arm, and an insulating rubber layer is arranged at the bottom section of the fixed clamp arm and the swing clamp arm respectively.

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