Clamp

Abstract

The utility model provides a clamp and belongs to the technical field of clamps. The clamp comprises a base, a clamp body and a limiting assembly. The charging trays are arranged on the base, the stacking direction of the clamp body and the base is a preset direction, the clamp body comprises a top plate and pressing plates, the pressing plates are arranged between the top plate and the base in the preset direction, and the charging trays are arranged between the top plate and the pressing plates, and / or between every two adjacent pressing plates, and / or between the pressing plates and the base in the preset direction. The limiting assembly comprises a limiting rod and a locking piece, the limiting rod penetrates through the clamp body in the preset direction, the end, close to the base in the preset direction, of the limiting rod is connected with the base, the limiting rod is sleeved with the locking piece, and the locking piece abuts against the side, away from the base in the preset direction, of the top plate so that the material disc can be clamped between the top plate and the pressing plate. And / or between two adjacent pressing plates and / or between the pressing plates and the base. The clamp can reduce the possibility of buckling deformation of the charging tray in the baking process so as to improve the yield.

Description

Technical Field

[0001] This utility model relates to the field of clamping technology, and in particular to a clamp. Background Technology

[0002] After PCB (Printed Circuit Board) packaging, the resulting products are typically placed in trays. Multiple products are then placed in an oven for baking and dehumidification. In related technologies, multiple trays containing products are stacked and bound together with Velcro straps. However, the tightening force of the Velcro straps on the trays is uneven, and the trays are usually made of engineering plastics. This makes it easy for the unbound parts of the trays to warp and deform during high-temperature baking, affecting the product yield. Utility Model Content

[0003] This invention provides a clamp designed to reduce the likelihood of warping and deformation of the baking tray during baking, thereby improving the product yield.

[0004] To achieve the above objectives, this utility model provides a clamp, comprising:

[0005] The base, on which the material tray is disposed;

[0006] The clamp body is stacked with the base in a preset direction. The clamp body includes a top plate and a pressure plate. The pressure plate is disposed between the top plate and the base along the preset direction. The material tray is disposed between the top plate and the pressure plate, and / or between two adjacent pressure plates, and / or between the pressure plate and the base along the preset direction.

[0007] A limiting assembly includes a limiting rod and a locking member. The limiting rod passes through the fixture body along the preset direction. One end of the limiting rod, near the base, is connected to the base along the preset direction. The locking member is sleeved on the limiting rod and abuts against the side of the top plate away from the base along the preset direction, so that the material tray can be clamped between the top plate and the pressure plate, and / or between two adjacent pressure plates, and / or between the pressure plate and the base.

[0008] In one embodiment, the projection area of ​​the material tray on the base along the preset direction is a first region, and the projection area of ​​the clamp body on the base along the preset direction is a second region. The first region is located within the second region, and there are multiple limiting components. The projection areas of the multiple limiting rods on the base along the preset direction are all located within the area of ​​the second region excluding the first region.

[0009] In one embodiment, the projection areas of the plurality of limiting rods on the base along the preset direction are arranged at intervals in the circumferential direction of the first region.

[0010] In one embodiment, the clamp includes an elastic element, which is sleeved on the limiting rod. The elastic element is disposed along the preset direction between the top plate and the pressure plate, and / or between two adjacent pressure plates, and / or between the pressure plate and the base.

[0011] In one embodiment, the base includes a support base and anti-slip feet, the anti-slip feet being disposed along the preset direction on the side of the support base opposite to the material tray.

[0012] In one embodiment, the clamp includes a handle disposed on the top plate on the side opposite to the base along the preset direction.

[0013] The above-mentioned solution of this utility model has the following beneficial effects:

[0014] In this embodiment, the tray is positioned between the top plate and the pressure plate, and / or between two adjacent pressure plates, and / or between the pressure plate and the base. When the limiting rod passes through the fixture body in a preset direction and connects to the base, and when the locking member moves toward the base in the preset direction, the locking member abuts against the top plate and applies pressure toward the base to the top plate. The pressure applied to the top plate by the locking member can be distributed relatively evenly by the top plate. The fixture body and the base cooperate with each other, so that the tray can be subjected to a more comprehensive and more uniform clamping force. Consequently, the tray can be clamped more tightly between the top plate and the pressure plate, and / or between two adjacent pressure plates, and / or between the pressure plate and the base. This restricts the deformation of the tray in the preset direction between the top plate and the pressure plate, and / or between two adjacent pressure plates, and / or between the pressure plate and the base, thereby reducing the possibility of warping deformation of the tray during baking and improving the yield of products located in the tray.

[0015] Other beneficial effects of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the fixture in one embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram showing the positional relationship between the first region, the second region, and the third region in one embodiment of the present invention.

[0018] [Explanation of Labels in the Attached Image]

[0019] 1. Base; 11. Bearing base; 12. Anti-slip feet; 2. Fixture body; 21. Top plate; 22. Pressure plate; 23. Second zone; 3. Limiting component; 31. Limiting rod; 311. Third zone; 32. Locking component; 4. Material tray; 41. First zone; 5. Elastic component; 6. Handle. Detailed Implementation

[0020] To make the technical problems, solutions, and advantages of this utility model clearer, a detailed description will be provided below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a locking connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] This application provides a clamp for holding a tray 4 containing packaged PCBs. The tray 4 can be made of high-temperature resistant engineering plastic. The tray 4 can have multiple receiving stations to accommodate multiple trays 4 containing packaged PCBs. The tray 4 can be configured as a square structure. For details, please refer to... Figure 1 The fixture includes a base 1, a fixture body 2, and a limiting component 3. A tray 4 is disposed on the base 1, and the stacking direction of the fixture body 2 and the base 1 is a preset direction. For example, Figure 1The direction indicated by R1 is the preset direction. The fixture body 2 includes a top plate 21 and a pressure plate 22. The top plate 21 can be made of a material with certain strength and rigidity, such as stainless steel. The pressure plate 22 can be made of a material with certain strength and rigidity, such as aluminum alloy. Both the top plate 21 and the pressure plate 22 can be configured as a square structure. The pressure plate 22 is disposed between the top plate 21 and the base 1 along the preset direction. The tray 4 is disposed between the top plate 21 and the pressure plate 22, and / or between two adjacent pressure plates 22, and / or between the pressure plate 22 and the base 1 along the preset direction. For example, please refer to... Figure 1 The clamp holds two trays 4. The lower tray 4 is positioned between the pressure plate 22 and the base 1, while the upper tray 4 is positioned between the top plate 21 and the pressure plate 22. The limiting assembly 3 includes a limiting rod 31 and a locking element 32. Both the limiting rod 31 and the locking element 32 can be made of materials with certain strength and rigidity, such as stainless steel. The limiting rod 31 passes through the clamp body 2 in a preset direction. It should be noted that... (Please refer to...) Figure 1 The limiting rod 31 does not pass through the material tray 4 in a preset direction. The end of the limiting rod 31 near the base 1 in the preset direction is connected to the base 1, for example, by a threaded connection. For example, the limiting rod 31 has an external thread on its outer periphery, and the base 1 has a threaded hole at the corresponding position. When the limiting rod 31 passes through the clamp body 2, the end of the limiting rod 31 near the base 1 in the preset direction is threadedly connected to the threaded hole of the base 1. The locking member 32 is sleeved on the limiting rod 31. For example, the locking member 32 can be a locking nut, which engages with the external thread of the limiting rod 31 so that the locking member 32 can move on the limiting rod 31 in a preset direction. The locking member 32 abuts against the side of the top plate 21 away from the base 1 in a preset direction so that the material tray 4 can be clamped between the top plate 21 and the pressure plate 22, and / or between two adjacent pressure plates 22, and / or between the pressure plate 22 and the base 1.

[0024] In this embodiment, the material tray 4 is disposed between the top plate 21 and the pressure plate 22, and / or between two adjacent pressure plates 22, and / or between the pressure plate 22 and the base 1. When the limiting rod 31 passes through the fixture body 2 in a preset direction and is connected to the base 1, and when the locking member 32 moves toward the base 1 in a preset direction, the locking member 32 can abut against the top plate 21 and apply pressure toward the base 1 to the top plate 21. The pressure applied by the locking member 32 to the top plate 21 can be distributed relatively evenly by the top plate 21. The fixture body 2 and the base 1 cooperate with each other, so that... The tray 4 is subjected to a more comprehensive and uniform clamping force, which allows the tray 4 to be clamped more tightly between the top plate 21 and the pressure plate 22, and / or between two adjacent pressure plates 22, and / or between the pressure plate 22 and the base 1. This restricts the deformation of the tray 4 in the preset direction to between the top plate 21 and the pressure plate 22, and / or between two adjacent pressure plates 22, and / or between the pressure plate 22 and the base 1, thereby reducing the possibility of warping and deformation of the tray 4 during baking and improving the yield of products located in the tray 4.

[0025] In one embodiment, please refer to Figure 1 and Figure 2 The projection area of ​​the material tray 4 onto the base 1 along a preset direction is designated as the first region 41, and the projection area of ​​the clamp body 2 onto the base 1 along a preset direction is designated as the second region 23. The first region 41 is located within the second region 23, allowing the clamp body 2 to clamp the material tray 4 more completely, reducing the possibility of warping or deformation of the material tray 4 during baking. Multiple limiting components 3 are present, and the projection areas of multiple limiting rods 31 onto the base 1 along a preset direction are all located within the area of ​​the second region 23 excluding the first region 41. For example, please refer to... Figure 2 The projection area of ​​the limiting rod 31 on the base 1 along a preset direction can be a third region 311, and multiple third regions 311 are all located within the area of ​​the second region 23 excluding the first region 41. On the one hand, this allows the material tray 4 to be placed in the fixture body 2 and / or base 1 without being strictly centered during the loading process, as long as it is placed within the range of the second region 23, taking care to avoid the third region 311, so that the fixture can clamp the material tray 4 relatively completely, which is beneficial to improving the convenience of loading the material tray 4. On the other hand, after the material tray 4 is baked and the locking member 32 is released, it is not necessary to completely pull the limiting rod 31 out of the base 1 and the fixture body 2, but only to unlock the locking member 32, so that the material tray 4 can be randomly picked out from any position in the fixture without being interfered with or limited by the limiting rod 31, which is beneficial to improving the convenience of removing the material tray 4 from the fixture.

[0026] In one embodiment, please refer to Figure 1 and Figure 2Multiple limiting rods 31 are arranged circumferentially on the base 1 along a preset direction, with their projection areas spaced apart. This allows the multiple pressures applied by the multiple locking elements 32 to the top plate 21 to be distributed more evenly on the top plate 21, thereby enabling the clamping body 2 and the base 1 to cooperate with each other to generate a more uniform clamping force on the material tray 4. For example, please refer to... Figure 2 The third region 311 can be located near the four corners of the second region 23, which is configured as a square.

[0027] In one embodiment, please refer to Figure 1 The clamp includes an elastic element 5, which can be a spring. The elastic element 5 is sleeved on the limiting rod 31 and is positioned between the top plate 21 and the pressure plate 22, and / or between two adjacent pressure plates 22, and / or between the pressure plate 22 and the base 1 along a preset direction. The material tray 4 can be easily loaded and unloaded within the clamp by relying on the elastic restoring force of the elastic element 5. For example, multiple limiting rods 31 are connected to the base 1 along a preset direction, and a first layer of elastic elements 5 is sleeved on each of the multiple limiting rods 31. The pressure plate 22 is placed on the base 1, and the two ends of the multiple elastic elements 5 in the first layer abut against the pressure plate 22 and the base 1 respectively along the preset direction. With the support of the multiple elastic elements 5 in the first layer, the distance between the pressure plate 22 and the base 1 is greater than the thickness of the material tray 4, and the material tray 4 can be easily loaded between the pressure plate 22 and the base 1. Subsequently, a second layer of elastic elements 5 is fitted onto the limiting rod 31, and a top plate 21 is placed on the pressure plate 22. The multiple elastic elements 5 of the second layer abut against the pressure plate 22 and the top plate 21 respectively at both ends along a predetermined direction. Supported by the multiple elastic elements 5 of the second layer, the distance between the top plate 21 and the pressure plate 22 is greater than the thickness of the material tray 4, allowing the material tray 4 to be easily inserted between the top plate 21 and the pressure plate 22. The locking element 32 and the limiting rod 31 are locked together, ensuring that the material tray 4 is held tightly by the clamp, and the elastic elements 5 are in a compressed state, storing a certain amount of compressive elastic potential energy. When the material tray 4 is baked, the locking element 32 is unlocked, allowing the pressure plate 22 and the base 1, as well as the top plate 21 and the pressure plate 22, to move away from each other under the elastic restoring force of the elastic elements 5, providing a certain operating space for removing the material tray 4 and improving the convenience of loading and unloading the material tray 4 within the clamp.

[0028] In one embodiment, please refer to Figure 1 The base 1 includes a support base 11 and anti-slip feet 12. The support base 11 can be made of a material with certain strength and rigidity, such as stainless steel. The anti-slip feet 12 are made of high-temperature resistant rubber. The anti-slip feet 12 are positioned along a predetermined direction on the side of the support base 11 opposite to the material tray 4, which reduces the possibility of the clamp sliding under external force and provides a certain gripping space for the moving clamp, improving the convenience of moving the clamp.

[0029] In one embodiment, please refer to Figure 1The clamp includes a handle 6, which is located on the side of the top plate 21 facing away from the base 1 along a preset direction, allowing the operator to quickly assemble and disassemble the top plate 21 on the limiting rod 31 using the handle. For example, the handle 6 can be made of high-temperature resistant engineering plastic.

[0030] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A clamp characterized in that, A clamp for clamping a tray, the clamp comprising: a base on which the tray is arranged; a clamp body, a stacking direction of the base being a preset direction, the clamp body comprising a top plate and a pressing plate, the pressing plate being arranged between the top plate and the base along the preset direction, the tray being arranged between the top plate and the pressing plate along the preset direction, and / or between two adjacent pressing plates, and / or between the pressing plate and the base; a limiting assembly comprising a limiting rod and a locking piece, the limiting rod being arranged in the clamp body along the preset direction, one end of the limiting rod being connected to the base along the preset direction, the locking piece being sleeved on the limiting rod, the locking piece abutting against one side of the top plate along the preset direction away from the base, so that the tray can be clamped between the top plate and the pressing plate, and / or between two adjacent pressing plates, and / or between the pressing plate and the base.

2. The clamp of claim 1, wherein A projection area of the tray on the base along the preset direction is a first area, a projection area of the clamp body on the base along the preset direction is a second area, the first area is located in the second area, and the number of the limiting assemblies is multiple, and the projection areas of the multiple limiting rods on the base along the preset direction are all located in the area range of the second area except the first area.

3. The clamp of claim 2, wherein The projection areas of the multiple limiting rods on the base along the preset direction are arranged in a circumferential direction of the first area.

4. The clamp of claim 1, wherein The clamp comprises an elastic piece, the elastic piece is sleeved on the limiting rod, and the elastic piece is arranged between the top plate and the pressing plate along the preset direction, and / or between two adjacent pressing plates, and / or between the pressing plate and the base.

5. The clamp of any one of claims 1 to 4, wherein The base comprises a bearing base and an anti-skid foot, the anti-skid foot being arranged on one side of the bearing base away from the tray along the preset direction.

6. The clamp of any one of claims 1 to 4, wherein The clamp comprises a handle, the handle being arranged on one side of the top plate away from the base along the preset direction.

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