Clamp for bonding carbon contact strip

Abstract

The utility model discloses a clamp for bonding a carbon slide plate, which comprises a support provided with an upper fixing plate and a lower fixing plate, and the lower fixing plate is used for supporting an aluminum bracket of the carbon slide plate; the screw rod penetrates through a through hole formed in the upper fixing plate, the upper part of the screw rod is exposed above the upper fixing plate, and the lower part of the screw rod is contacted with a carbon strip of the carbon slide plate; the spring is sleeved on the part, between the upper fixing plate and the lower fixing plate, of the screw rod; and the nut is sleeved on the part, positioned above the upper fixing plate, of the screw rod and is in threaded connection with the screw rod. The clamp for bonding the carbon slide plate is simple in structure and convenient to use, pressure is applied to the bonding surface of the aluminum bracket and the carbon strip of the carbon slide plate in a spring force pressing mode, stress generated during high-temperature curing can be effectively released through stretching and retracting of the spring, breakage of the carbon strip is avoided, the effect is good, and the production cost of the carbon strip is reduced.

Description

Technical Field

[0001] This utility model relates to the field of carbon skateboard technology, and in particular to a clamp for bonding carbon skateboards. Background Technology

[0002] The connection between the aluminum bracket and carbon strip of the carbon sliding plate for railway locomotives is achieved by applying conductive adhesive to the joint surfaces of the two, then applying a certain pressure through a clamp to make the two stick together tightly. The pressure should be consistent and balanced. Finally, the clamp and the carbon sliding plate are sent into an oven for high-temperature curing.

[0003] In the existing technology, the following methods are used: Figure 1 The fixture shown applies pressure to the aluminum bracket and carbon fiber strip. It includes a base 5', a pair of screws 4', a pressure plate 3', a pair of nuts 1', and a pair of washers 2'. During pressure application, the aluminum bracket 2 is placed on the base, the carbon fiber strip 1 is placed above the aluminum bracket, and the pressure plate is placed above the carbon fiber strip. The pair of nuts and washers are screwed onto the pair of screws respectively. A torque wrench is used to apply a standard torque to the pair of nuts (tightening the nuts on the left and right sides alternately), and the torque is applied to the bonding surface between the carbon fiber strip and the aluminum bracket through the pressure plate. When curing at high temperature, due to the principle of thermal expansion and contraction, the thermal expansion generated by the fixture and the stress during pressure application exceed the carbon fiber strip's bearing capacity and cannot be effectively released. Therefore, carbon fiber strip breakage may occur in actual production. Broken carbon fiber strips become scrap, increasing the production cost of carbon fiber strips and affecting the delivery time. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides a clamp for bonding carbon strips. It has a simple structure and is easy to use. It applies pressure to the aluminum bracket and the bonding surface of the carbon strip using spring force. The extension and contraction of the spring can effectively release the stress generated during high-temperature curing, preventing the carbon strip from breaking. It has good results, reduces the production cost of carbon strips, and ensures the delivery time of carbon strips.

[0005] To achieve the above-mentioned objectives of this utility model, this utility model provides a clamp for bonding carbon slide plates, comprising: a bracket having an upper fixed plate and a lower fixed plate, wherein the lower fixed plate is used to support an aluminum bracket of the carbon slide plate; a screw that passes through a through hole in the upper fixed plate and is exposed above the upper fixed plate, wherein the lower part is used to contact the carbon strip of the carbon slide plate; a spring fitted on the portion of the screw located between the upper and lower fixed plates; and a nut fitted on the portion of the screw located above the upper fixed plate and threaded thereto.

[0006] Preferably, it also includes a bearing fitted outside the screw and located below the nut.

[0007] Preferably, it also includes a flat pad disposed between the screw and the upper surface of the carbon strip.

[0008] Preferably, the bearing is a planar bearing.

[0009] Preferably, the bearing is fixedly connected with the nut.

[0010] Preferably, the bracket further comprises a vertical plate for fixedly connecting corresponding sides of the upper fixed plate and the lower fixed plate together.

[0011] Compared with the prior art, the carbon slide plate bonding clamp has the following advantages:

[0012] 1. The carbon slide plate bonding clamp has simple structure and is convenient to use, the spring force pressing mode is adopted to press the aluminum bracket and the carbon strip bonding surface of the carbon slide plate, the stress generated during high-temperature curing can be effectively released by the expansion and contraction of the spring, the breakage of the carbon strip is avoided, the production cost of the carbon strip is reduced, and the carbon strip delivery period is ensured.

[0013] 2. The carbon slide plate bonding clamp, the upper fixed plate of the bracket does not directly contact the carbon strip of the carbon slide plate, and the spring outside the screw rod is arranged between the upper fixed plate and the carbon strip, so that the stress generated on the carbon slide plate during high-temperature curing can be effectively released by the expansion and contraction of the spring during high-temperature curing of the carbon slide plate, the breakage of the carbon strip is effectively avoided, the carbon strip scrap rate is reduced, and the curing effect is better.

[0014] The utility model will be explained in detail below in combination with the drawings. DRAWINGS

[0015] Figure 1 It is a structural schematic view of the prior art carbon slide plate bonding clamp;

[0016] Figure 2 It is a structural schematic view of the carbon slide plate bonding clamp of the utility model. CONCRETE IMPLEMENTING METHOD

[0017] As shown in the drawings, it is a structural schematic view of the carbon slide plate bonding clamp provided by the utility model, which comprises: Figure 2 As can be seen, the carbon slide plate bonding clamp of the utility model comprises: a bracket with an upper fixed plate 6 and a lower fixed plate, the lower fixed plate is used for supporting the aluminum bracket 2 of the carbon slide plate; a screw rod 3 passing through the through hole of the upper fixed plate and exposed above the upper fixed plate, the lower part of the screw rod is used for contacting the carbon strip 1 of the carbon slide plate; a spring 7 sleeved on the part of the screw rod between the upper fixed plate and the lower fixed plate; and a nut 4 sleeved on the part of the screw rod above the upper fixed plate and threadedly connected with the screw rod. Figure 2 Specifically, the bracket of the utility model comprises an upper fixed plate, a lower fixed plate arranged in parallel with the upper fixed plate, and a side corresponding to the upper fixed plate and the lower fixed plate (for example, the left side of the bracket in the drawings).

[0018] Figure 2 ​The vertical plate on the left side is vertically and fixedly connected with the vertical plate on the right side, and the bracket with the right side opening is formed by the upper fixed plate, the lower fixed plate and the vertical plate, so that the carbon slide plate can be put into the opening.

[0019] The upper fixed plate is provided with a through hole, the lower part of the screw rod passes through the through hole of the upper fixed plate, extends below the upper fixed plate and is in a cantilever state, and the lower surface is used for directly or indirectly contacting the carbon strip of the carbon slide plate to be high-temperature cured. The upper part of the screw rod is exposed above the upper fixed plate, and a nut is externally sleeved and threadedly connected with the screw rod. The nut can be a butterfly nut. By screwing the nut, the distance between the lower surface of the screw rod and the lower fixed plate or the upper fixed plate can be adjusted, so that the clamp can clamp the carbon slide plate with different heights to perform high-temperature curing treatment.

[0020] In order to effectively release the stress generated by the clamp on the carbon slide plate during high-temperature curing treatment of the aluminum bracket and the carbon strip of the carbon slide plate, and avoid the breakage of the carbon strip, a spring is sleeved on the part of the screw rod between the upper fixed plate and the lower fixed plate, so that the stress generated by the clamp on the carbon slide plate, especially the carbon strip, can be effectively released by using the expansion and contraction effect of the spring during high-temperature curing.

[0021] In order to reduce the friction between the rotating nut and the upper fixed plate, and to bear greater load, a bearing 5 is externally sleeved on the screw rod exposed above the upper fixed plate. The bearing is a plane bearing, and the upper end surface of the bearing is fixedly connected with the lower surface of the nut, such as by gluing or welding, so that the plane bearing can rotate together with the nut when the nut is rotated.

[0022] In order to increase the surface area of the screw rod in contact with the carbon strip, a horizontal surface flat pad 8 can be provided on the lower end surface of the screw rod. The size of the flat pad is greater than the size of the lower end surface of the screw rod, and can be comparable to the size of the upper surface of the carbon strip. When assembled, the flat pad is arranged between the lower end surface of the screw rod and the upper surface of the carbon strip. The flat pad can be fixed on the lower part of the screw rod by means of gluing or welding, or can be fixed on the lower part of the screw rod by means of screw connection.

[0023] In the following, the process of clamping the carbon slide plate to be high-temperature cured by the carbon slide plate bonding clamp of the utility model will be described. Figure 2

[0024] ​First, rotate the butterfly nut (the plane bearing rotates together) in a certain direction (such as clockwise), make the screw rod relative to the lower fixed plate rise up, the spring is compressed by the upper fixed plate and the flat pad, when the distance between the flat pad and the lower fixed plate is greater than the thickness of the carbon slide plate (i.e. the thickness after the carbon strip is installed on the aluminum bracket), the carbon slide plate can be placed between the flat pad and the lower fixed plate of the clamp, then rotate the butterfly nut in the opposite direction (such as counterclockwise), make the screw rod move down, the spring will be stretched and naturally stretched, the elastic force acts on the carbon slide plate. When the carbon slide plate is subjected to high-temperature curing treatment, the expansion and contraction of the spring can effectively release the stress generated during high-temperature curing, avoiding the breakage of the carbon strip during high-temperature curing, and the effect is good. After high-temperature curing, rotate the butterfly nut clockwise, loosen the carbon slide plate, and then remove the clamp.

[0025] Although the present application has been described in detail, it is not limited thereto, and those skilled in the art can make modifications according to the principles of the present application, therefore, any modification made according to the principles of the present application should be understood as falling within the scope of the present application.

Claims

1. A clamp for bonding carbon skateboards, characterized in that, Comprising: a bracket having an upper fixing plate and a lower fixing plate, the lower fixing plate for supporting an aluminum bracket of a carbon slide plate; a screw rod having a through hole formed through the upper fixing plate and exposed above the upper fixing plate, the lower part of the screw rod for contacting a carbon strip of the carbon slide plate; a spring sleeved on the part of the screw rod between the upper fixing plate and the lower fixing plate; a nut sleeved on the part of the screw rod above the upper fixing plate and threadedly connected with the screw rod.

2. The jig for bonding a carbon slide plate according to claim 1, characterized by Further comprising a bearing sleeved outside the screw rod and below the nut.

3. The jig for bonding a carbon slide plate according to claim 1 or 2, characterized by Further comprising a flat pad arranged between the screw rod and the upper surface of the carbon strip.

4. The jig for bonding the carbon slide plate according to claim 2, wherein The bearing is a flat bearing.

5. The jig for bonding the carbon slide plate according to claim 4, wherein The bearing is fixedly connected with the nut.

6. The carbon slide plate bonding jig according to claim 1, wherein The bracket further comprises a vertical plate for fixedly connecting corresponding sides of the upper fixing plate and the lower fixing plate together.

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