Clamping device

Abstract

The invention provides a clamping device. The clamping device comprises a carrier plate, a first clamping block, a second clamping block, a first elastic piece, a second elastic piece, a first connecting rod piece, a second connecting rod piece and a control rod. A plurality of through grooves penetrating through the carrier plate are formed in the carrier plate; the first clamping block comprises a first clamping position and a first unfolding position; the second clamping block comprises a second clamping position and a second unfolding position; the first elastic piece abuts against the first clamping block. The second elastic piece abuts against the second clamping block. The control rod moves between a first position and a second position; one end of the first connecting rod piece is matched with the control rod, and the other end abuts against one end of the first clamping block; one end of the second connecting rod piece is matched with the control rod, and the other end abuts against one end of the second clamping block; a plurality of first guide grooves are formed in the control rod, the axis direction of the first guide grooves is consistent with the movement direction of the control rod, and first positioning columns connected with the first guide grooves in a matched mode are arranged on the second face of the carrying plate in a protruding mode, so that the clamping device is easy, convenient and easy to operate.

Description

Technical Field

[0001] This disclosure relates to the field of manual jig technology, and more particularly to a clamping device. Background Technology

[0002] With the increasing number of production projects for medium-sized electronic components, the demand for manual fixtures suitable for these components is also growing. Currently, most manual fixtures are primarily for simple positioning, with only a few employing clamping positioning methods. Furthermore, the opening mechanism of most clamping positioning fixtures is quite difficult and complex.

[0003] Therefore, a new technical solution is urgently needed. Summary of the Invention

[0004] In view of this, the purpose of this disclosure is to provide a clamping device to solve the problem of the cumbersome use of clamping devices.

[0005] For the purposes described above, this disclosure discloses a clamping device for securing a product, comprising:

[0006] The carrier plate includes a first surface and a second surface disposed opposite to each other. The first surface is provided with a first limiting boss that abuts against the first long side of the product and a second limiting boss that abuts against the first short side of the product. The carrier plate is provided with a plurality of through slots penetrating the carrier plate.

[0007] The first clamping block is slidably disposed in the through groove, and the first clamping block includes a first clamping position and a first unfolding position. When the first clamping block is in the first clamping position, the first clamping block abuts against the second long side of the product.

[0008] The second clamping block is slidably disposed in the through groove, and the second clamping block includes a second clamping position and a second unfolding position. When the second clamping block is in the second clamping position, the second clamping block abuts against the second short side of the product.

[0009] A first elastic element is disposed in the through groove and abuts against the first clamping block;

[0010] The second elastic element is disposed in the through groove and abuts against the second clamping block;

[0011] A control lever, located on the second surface of the carrier plate, reciprocates between a first position and a second position;

[0012] The first link has one end connected to the control rod and the other end abutting against the end of the first clamping block away from the first elastic member.

[0013] The second connecting rod has one end connected to the control rod and the other end abutting against the end of the second clamping block away from the second elastic member; wherein, the control rod is provided with a plurality of first guide grooves, the plurality of first guide grooves are distributed at intervals along the movement direction of the control rod, and the axial direction of the first guide grooves is consistent with the movement direction of the control rod, and a first positioning post is protruding on the second surface of the carrier plate and connected to the first guide groove.

[0014] Furthermore, the control lever has a mating groove at the position corresponding to the first connecting rod;

[0015] One end of the first connecting rod is accommodated in the mating groove.

[0016] Furthermore, a second guide groove extending along the axial direction of the first connecting rod is provided at the other end of the first connecting rod, and a second positioning post that mates with the second guide groove is provided on the second surface of the carrier plate.

[0017] Furthermore, the control lever has a rotating shaft protruding from its position corresponding to the second connecting rod; one end of the second connecting rod has a slot that engages with the rotating shaft, and the second connecting rod rotates around the rotating shaft.

[0018] Furthermore, a third guide groove extending along the axial direction of the second link is provided at the other end of the second link, and a third positioning post that mates with the third guide groove is provided on the second surface of the carrier plate.

[0019] The second connecting rod is provided with protrusions on both sides and near the end of the third guide groove, and the protrusions abut against the second clamping block.

[0020] Furthermore, a groove is formed in the second surface of the carrier plate; the first connecting rod, the second connecting rod, and at least a portion of the control rod are received within the groove;

[0021] Along the thickness direction of the carrier plate, the heights of the first connecting rod, the second connecting rod, and the control rod are all no higher than the second surface of the carrier plate.

[0022] Furthermore, the second surface of the carrier plate is also formed with a communicating groove that communicates with the groove, and the control rod is slidably connected to the communicating groove;

[0023] The control lever includes a handle located radially outward from the carrier plate.

[0024] Furthermore, the carrier plate is provided with a first mounting groove and a second mounting groove, the end portion of the first elastic member away from the first clamping block is fixed in the first mounting groove, and the end portion of the second elastic member away from the second clamping block is fixed in the second mounting groove.

[0025] Furthermore, the first clamping block includes a first abutting part and a first locking part connected to each other. The first abutting part is located on the second surface of the carrier plate and abuts against the first connecting rod. The first locking part is slidably disposed in the through groove, and the first locking part is higher than the first surface of the carrier plate and abuts against the second long side of the product.

[0026] The second clamping block includes a second abutting part and a second locking part that are connected to each other. The second abutting part is located on the second surface of the carrier plate and abuts against the second connecting rod. The second locking part is slidably disposed in the through groove and is higher than the first surface of the carrier plate and abuts against the second short side of the product.

[0027] Compared with the prior art, this application has the following technical effects:

[0028] This application employs a positioning post and guide groove structure on the connecting rod to reduce frictional resistance during the movement of the connecting rod and facilitate operation. Through the coordinated action of the control rod, connecting rod and elastic element, this application drives the clamping block to the unfolded position to achieve a self-locking effect. The structure is simple and robust, easy to operate, reliable in function and long in service life. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in this disclosure or related technologies, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are only embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the first side structure of the clamping device in one embodiment of this application;

[0031] Figure 2 This is a clamping schematic diagram of the clamping device in one embodiment of this application;

[0032] Figure 3 This is a schematic diagram of the clamping device in one embodiment of this application.

[0033] Figure 4 This is a schematic diagram of the clamping movement direction of the clamping device in one embodiment of this application;

[0034] Figure 5 This is a schematic diagram showing the direction of movement of the clamping device when it is deployed in one embodiment of this application;

[0035] Figure 6 This is a top view of the clamping device in one embodiment of this application;

[0036] Figure 7 for Figure 6 A cross-sectional view along the AA direction;

[0037] Figure 8 for Figure 6 A cross-sectional view along the BB direction;

[0038] Figure 9 This is a schematic diagram of the back plate structure of the clamping device in one embodiment of this application;

[0039] Figure 10 This is a schematic diagram of the cover plate structure of the clamping device in one embodiment of this application. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this disclosure clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0041] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this disclosure should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar terms used in the embodiments of this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0042] With the increasing number of production projects for medium-sized electronic components, the demand for manual fixtures suitable for these components is also growing. Currently, most manual fixtures are based on simple positioning, using structures such as locating pins and locating blocks. However, for high-precision work, simple positioning cannot meet the stable clamping requirements, and only a few manual fixtures use clamping positioning methods. Furthermore, the opening methods of most clamping positioning fixtures are quite difficult and complex.

[0043] In related technologies, a clamping device uses the reaction force generated by the compression of a spring to automatically clamp the product. The clamping structure is in an unfolded state before the product is placed by employing a spiral locking, snap-locking, or single lever locking structure.

[0044] The inventors of this application have discovered the following problems in the relevant technology during long-term practical work:

[0045] The above-mentioned locking methods require a large force or multiple unlocking steps to open the locking structure. Especially in scenarios where workpieces are picked up and put down frequently, this greatly reduces the efficiency of changing parts and affects production efficiency. In addition, it increases the difficulty and workload of operators, increases the risk of human error, and is difficult to adapt to the efficient and precise production needs of medium-sized workpieces.

[0046] For the reasons stated above, this application proposes a clamping device, including a carrier plate, a first clamping block, a second clamping block, a first elastic element, a second elastic element, a control rod, a first connecting rod, and a second connecting rod. The carrier plate has multiple through slots penetrating the carrier plate; the first clamping block is slidably disposed within the through slots, and the first clamping block includes a first clamping position and a first unfolded position; the second clamping block is slidably disposed within the through slots, and the second clamping block includes a second clamping position and a second unfolded position; the first elastic element is disposed within the through slots and abuts against the first clamping block; the second elastic element is disposed within the through slots and abuts against the second clamping block; the control rod reciprocates between the first position and the second position; one end of the first connecting rod is engaged with the control rod, and the other end abuts against the end of the first clamping block away from the first elastic element; one end of the second connecting rod is engaged with the control rod, and the other end abuts against the end of the second clamping block away from the second elastic element.

[0047] This application employs a positioning post and guide groove structure on the connecting rod to reduce frictional resistance during the movement of the connecting rod and facilitate operation. Through the coordinated action of the control rod, connecting rod and elastic element, this application drives the clamping block to move to the clamping position or the unfolding position, achieving a self-locking effect. The structure is simple and robust, easy to operate, reliable in function and long in service life.

[0048] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0049] Specifically, Figure 1 This is a schematic diagram of the first side structure of the clamping device in one embodiment of this application; Figure 2 This is a clamping schematic diagram of the clamping device in one embodiment of this application; Figure 3 This is a schematic diagram of the clamping device in one embodiment of this application. Figure 4 This is a schematic diagram of the clamping movement direction of the clamping device in one embodiment of this application; Figure 5 This is a schematic diagram showing the direction of movement of the clamping device when it is deployed in one embodiment of this application; Figure 6 This is a top view of the clamping device in one embodiment of this application; Figure 7 for Figure 6 A cross-sectional view along the AA direction; Figure 8 for Figure 6 A cross-sectional view along the BB direction; Figure 9 This is a schematic diagram of the back plate structure of the clamping device in one embodiment of this application; Figure 10 This is a schematic diagram of the cover plate structure of the clamping device in one embodiment of this application.

[0050] Please refer to Figures 1-10 This application provides a clamping device for clamping product 1. In this embodiment, the clamping device includes a carrier plate 100, a first clamping block 200, a second clamping block 300, a first elastic element 400, a second elastic element 500, a control rod 600, a first connecting rod 700, and a second connecting rod 800. The carrier plate 100 includes a first surface 110 and a second surface 120 disposed opposite to each other. The first surface 110 is provided with a first limiting boss 111 that abuts against the first long side 11 of the product 1 and a second limiting boss 112 that abuts against the first short side 12 of the product 1. The carrier plate 100 is provided with a plurality of through slots 130 penetrating the carrier plate 100. A first clamping block 200 is slidably disposed in the through slots 130. The first clamping block 200 includes a first clamping position and a first unfolding position. When the first clamping block 200 is in the first clamping position, the first clamping block 200 abuts against the second long side 13 of the product 1. A second clamping block 300 is slidably disposed in the through slots 130. The second clamping block 300 includes a second clamping position. In the clamping position and the second unfolding position, when the second clamping block 300 is in the second clamping position, the second clamping block 300 abuts against the second short side 14 of the product 1; the first elastic element 400 is disposed in the through groove 130 and abuts against the first clamping block 200; the second elastic element 500 is disposed in the through groove 130 and abuts against the second clamping block 300; the control rod 600 reciprocates between the first position and the second position; one end of the first connecting rod 700 is engaged with the control rod 600, and the other end abuts against the end of the first clamping block 200 away from the first elastic element 400; one end of the second connecting rod 800 is engaged with the control rod 600, and the other end abuts against the end of the second clamping block 300 away from the second elastic element 500. The control rod 600 is provided with a plurality of first guide grooves, which are distributed at intervals along the movement direction X1 or X2 of the control rod. The axis L of the first guide groove 610 is consistent with the movement direction of the control rod 600. The second surface 120 of the carrier plate 100 is provided with a first positioning post 121 that mates with the first guide groove 610.

[0051] The clamping device is used to hold product 1, facilitating subsequent processing, cleaning, assembly, and other steps of product 1, and preventing product 1 from moving on the carrier plate 100. In this embodiment, product 1 can be a display module, display panel, etc.

[0052] It should be noted that, as Figure 2 , Figure 4 The diagram shows the control lever 600 in the first position. At this position, the first clamping block 200 and the second clamping block 300 are pushed towards the product 1 by the elastic force of the first elastic element 400 and the second elastic element 500, respectively. Specifically, the first clamping block 200 moves along the W1 direction, and the second clamping block 300 moves along the W3 direction. At this time, the first clamping block 200 and the second clamping block 300 are in a clamping state, thereby achieving the purpose of clamping the product 1 through the first clamping block 200 and the second clamping block 300. Figure 3 , Figure 5 As shown, the control lever 600 is in the second position. At this time, the first clamping block 200 and the second clamping block 300 are pushed away from the product 1 by the connecting rod. That is, the first clamping block 200 moves along the W2 direction and the second clamping block 300 moves along the W4 direction. At this time, the first clamping block 200 and the second clamping block 300 are in the unfolded state. In this state, the user can remove or place the product 1.

[0053] In this embodiment, the carrier plate 100 includes a first surface 110 and a second surface 120 disposed opposite to each other. The first surface 110 is provided with a first limiting boss 111 that abuts against the first long side 11 of the product 1 and a second limiting boss 112 that abuts against the first short side 12 of the product 1. The carrier plate 100 is provided with a plurality of through slots 130 penetrating the carrier plate 100.

[0054] Specifically, the first surface of the carrier plate 100 is used to place the product, and exposes a first clamping block 200 which can be positioned in a first clamping position or a first unfolded position, and a second clamping block 300 which can be positioned in a second clamping position or a second unfolded position. It should be noted that the first clamping position refers to the position where the first clamping block 200 clamps the product 1, and the second clamping position refers to the position where the second clamping block 300 clamps the product 1. In this state, the first long side 11 of the product 1 abuts against the first limiting boss 111, the second long side 13 of the product abuts against the first clamping block 200, the first short side 12 of the product 1 abuts against the second limiting boss 112, and the second short side 14 abuts against the second clamping block 300. At this time, the clamping of the product 1 is completed through the joint cooperation of the first limiting boss 111, the first clamping block 200, the second limiting boss 112, and the second clamping block 300, allowing for subsequent processing, cleaning, assembly, and other steps. Similarly, the first unfolded position refers to the position where the first clamping block 200 is furthest from the first limiting boss 111, and the second unfolded position refers to the position where the second clamping block 300 is furthest from the second limiting boss 112. In this state, both the first clamping block 200 and the second clamping block 300 are disengaged from the product. At this time, the product to be clamped can be placed at a preset position on the first surface 110 of the carrier plate 100, or the product 1 that was originally clamped can be removed. The first limiting boss 111 and the second limiting boss 112 are used to preset the placement position of the product. Specifically, during placement, ensure that the first long side 11 of the product 1 abuts against the first limiting boss 111, and the first short side 12 abuts against the second limiting boss 112. Optionally, the preset position can also be used to place a display module, display panel, etc.

[0055] It should be noted that the receiving space enclosed by the first clamping block 200, the second clamping block 300, the first limiting boss 111, and the second limiting platform 112 is rectangular, which is used to correspond to the product 1, which is also rectangular, and can provide a more stable clamping effect for the product 1.

[0056] In this embodiment, a plurality of through slots 130 are provided on the carrier plate 100. The first clamping block 200 is slidably disposed in the through slot 130, and the first clamping block 200 includes a first clamping position and a first unfolding position. When the first clamping block 200 is in the first clamping position, the first clamping block 200 abuts against the second long side 13 of the product 1. When the first clamping block 200 is in the first unfolding position, the first clamping block 200 disengages from the second long side 13 of the product 1. The second clamping block 300 is slidably disposed in the through slot 130, and the second clamping block 300 includes a second clamping position and a second unfolding position. When the second clamping block 300 is in the second clamping position, the second clamping block 300 abuts against the second short side 14 of the product 1. When the second clamping block 300 is in the second unfolding position, the second clamping block 300 disengages from the second short side 14 of the product 1.

[0057] One or more first clamping blocks 200 can be provided, and the multiple first clamping blocks 200 are evenly distributed along the long side of the product 1 to generate a uniform clamping force on the long side of the product. Of course, when there are multiple first clamping blocks 200, there are also multiple first connecting rods 700 and first elastic members 400, and the multiple first connecting rods 700 abut against the multiple first clamping blocks 200 one by one. When the control rod 600 is pushed to the second position, the control rod 600 can simultaneously drive the multiple first connecting rods 700 to move synchronously, thereby driving the corresponding first clamping block 200 to move to the unfolded position; similarly, when the control rod 600 is pulled to the first position, each first clamping block 200 is moved to the clamping position by the elastic force of the corresponding first elastic member 400. In this embodiment, there are specifically two first clamping blocks 200.

[0058] One or two second clamping blocks 300 are provided. In this embodiment, two second clamping blocks 300 are provided, and the two second clamping blocks 300 are symmetrically arranged about the axis X3 of the control rod 600.

[0059] In this embodiment, both the first clamping block 200 and the second clamping block 300 are L-shaped. Specifically, as shown... Figure 7 As shown, the first clamping block 200 includes a first abutting portion 210 and a first locking portion 220 connected to each other. The first abutting portion 210 is located on the second surface 120 of the carrier plate 100 and abuts against the first connecting rod 700. The first locking portion 220 is slidably disposed in the through groove 130, and the first locking portion 220 is higher than the first surface 110 of the carrier plate 100 and abuts against the second long side 13 of the product 1; Figure 8 As shown, the second clamping block 300 includes a second abutting portion 310 and a second locking portion 320 connected to each other. The second abutting portion 310 is located on the second surface 120 of the carrier plate 100 and abuts against the second connecting rod 800. The second locking portion 320 is slidably disposed in the through groove 130, and the second locking portion 320 is higher than the first surface 110 of the carrier plate 100 and abuts against the second short side 14 of the product 1. When the control lever 600 is pushed to the second position, the control lever 600 can simultaneously drive multiple first connecting rods 700 to move synchronously. At this time, the first connecting rods 700 exert a pushing force on the first abutting portion 210, thereby driving the first locking portion 220 to a position away from the product 1, until the first clamping block 200 moves to the first unfolded position. At the same time, the control lever 600 can also drive the second link 800 to move. During the movement of the second link 800, it exerts a pushing force on the second abutment part 310 of the product 1, thereby driving the second locking part 320 to a position away from the product 1, until the second abutment part 310 moves to the second unfolded position.

[0060] In this embodiment, the first elastic member 400 is disposed in the through groove 130 and abuts against the first clamping block 200; the second elastic member 500 is disposed in the through groove 130 and abuts against the second clamping block 300.

[0061] Specifically, such as Figure 6 , Figure 7 and Figure 8 As shown, the carrier plate 100 has a first mounting groove 140 and a second mounting groove 150. The end of the first elastic member 400 away from the first clamping block 200 is at least partially fixed in the first mounting groove 140, and the end of the second elastic member 500 away from the second clamping block 300 is at least partially fixed in the second mounting groove 150.

[0062] In this embodiment, the control lever 600 reciprocates between a first position and a second position. For example... Figure 3 As shown, when the control lever 600 moves from the first position to the second position, the control lever 600 drives the first connecting rod 700 to move, thereby driving the first clamping block 200 from the first clamping position to the first unfolded position; simultaneously, the control lever 600 drives the second connecting rod 800 to move, thereby driving the second clamping block 300 from the second clamping position to the second unfolded position; as shown... Figure 2 As shown, when the control lever 600 moves from the second position to the first position, the first clamping block 200 moves from the first unfolded position to the first clamping position under the elastic action of the first elastic member 400; at the same time, the second clamping block 300 moves from the second unfolded position to the second clamping position under the elastic action of the second elastic member 500.

[0063] In this embodiment, as Figure 3 As shown, a first guide groove 610 is provided on the control lever 600. The axial direction of the first guide groove 610 is consistent with the movement direction of the control lever 600, and a first positioning post 121 that mates with the first guide groove 610 is protruding on the second surface 120 of the carrier plate 100. The first guide groove 610 guides the movement direction of the control lever 600, so that the control lever 600 can move along the axial direction of the first guide groove 610.

[0064] Specifically, the cross-sectional shape of the first guide groove 610 is an elliptical rectangle, and the shape of the first positioning post 121 is cylindrical. In a preferred embodiment, the size of the first positioning post 121 is adapted to the first guide groove 610. Alternatively, the diameter of the circular cross-section of the first positioning post 121 is equal to the width of the rectangular cross-section of the first guide groove 610. This perfect match between the first guide groove 610 and the first positioning post 121 prevents the control lever 600 from moving in directions other than the designated direction, thus avoiding uneven movement and potential jamming, resulting in a better user experience.

[0065] In this embodiment, along the thickness direction of the carrier plate 100, the height of the first positioning post 121 is not greater than the depth of the first guide groove 610.

[0066] It should be noted that there are multiple first guide grooves 610, which are used to determine the movement direction and range of the first guide grooves 610. In this embodiment, three first guide grooves 610 are provided on the control rod 600, and the three first guide grooves 610 are distributed at intervals along the movement direction of the control rod 610. Each first guide groove 610 is matched with a first positioning post 121. The movement direction X1 of the control rod 610 is the extension direction X3 of the first guide groove 610, and the movement range of the control rod 610 is the length of the first guide groove 610 in the axial direction.

[0067] In this embodiment, one end of the first connecting rod 700 is connected to the control rod 600.

[0068] Specifically, a mating groove 620 is provided on the control lever 600 corresponding to the position of the first connecting rod 700, and one end of the first connecting rod 700 is accommodated in the mating groove 620. In this embodiment, the mating groove 620 is semi-circular. Both ends of the first connecting rod 700 are also semi-circular. When the control lever 600 moves, it simultaneously drives the first connecting rod 700 to move. Since one end of the first connecting rod 700 is always accommodated in the mating groove 620, one end of the first connecting rod 700 also moves left and right with the control lever 600.

[0069] The other end of the first connecting rod 700 abuts against the end of the first clamping block 200 that is away from the first elastic member 400.

[0070] Specifically, the other end of the first connecting rod 700 is provided with a second guide groove 710 extending along the axial direction of the first connecting rod 700, and the second surface 120 of the carrier plate 100 is provided with a second positioning post 122 that mates with the second guide groove 710.

[0071] When the control lever 600 moves, it simultaneously drives the first connecting rod 700 to move. One end of the first connecting rod 700 also moves left and right with the control lever 600, while the other end of the first connecting rod 700 moves up and down around the second positioning post 122. When the other end of the first connecting rod 700 moves upward, i.e., towards the first clamping block 200, it presses against the first clamping block 200, causing the first clamping block 200 to move away from the product 1 and into an unfolded state. At this time, the product 1 can be placed in the set position on the carrier plate 100. When the other end of the first connecting rod 700 moves downward, i.e., away from the first clamping block 200, the first clamping block 200 is pushed by the first elastic element 400, causing the first clamping block 200 to move towards the product 1 and into a clamped state, thus clamping the product 1.

[0072] In this embodiment, one end of the second connecting rod 800 is connected to the control rod 600.

[0073] Specifically, the control lever 600 is provided with a rotating shaft 630 at the position corresponding to the second connecting rod 800, and one end of the second connecting rod 800 is provided with a slot 810 that engages with the rotating shaft 630, and the second connecting rod 800 can rotate around the rotating shaft 630.

[0074] When the control lever 600 moves, it simultaneously drives the second link 800 to move. Since one end of the second link 800 is movably connected to one end of the control lever, one end of the first link 700 moves around the rotation axis 630 of the control lever 600.

[0075] The other end of the second connecting rod 800 abuts against the end of the second clamping block 300 that is away from the second elastic member 500.

[0076] Specifically, the other end of the second connecting rod 800 is provided with a third guide groove 820 extending along the axial direction of the second connecting rod 800, and a third positioning post 123 protruding on the second surface 120 of the carrier plate 100, which mates with the third guide groove 820; the other end of the second connecting rod 800 is also provided with a protrusion 830 that abuts against the second clamping block 300. Adding the protrusion 830 to the second connecting rod 800 utilizes a lever effect to push the clamping block, achieving a labor-saving effect. It should be noted that the protrusion 830 is located at the end near the third guide groove 820. The contour curve of the protrusion 830 is an arc. When the control lever 640 moves from the first position to the second position, that is, the clamping structure changes from a clamped state to an open state, the control lever 640 drives the second connecting rod 800 to move. Specifically, with the protrusion 830 as the fulcrum and the second connecting rod 800 as the axis, since the protrusion 830 is far from the rotating shaft 630, the force required for the control lever 640 to drive the second connecting rod 800 to rotate through the rotating shaft 630 is small, thus achieving the effect of saving effort.

[0077] Specifically, when the control rod 600 moves, it simultaneously drives the second connecting rod 800 to move. Since one end of the second connecting rod 800 is movably connected to one end of the control rod 600, that end of the second connecting rod 800 moves around the pivot 630 of the control rod 600. When the first end of the second connecting rod 800 moves clockwise around the pivot 630 of the control rod 600, the protrusion 830 on the second connecting rod 800 abuts against the second clamping block 300, pushing the second clamping block 300 to move away from the product 1, thus opening it up. At this time, in conjunction with the protrusion on the connecting rod, a self-locking effect is achieved, allowing the product to be placed at the set position on the carrier plate 100. When the first end of the second connecting rod 800 moves counterclockwise around the pivot 630 of the control rod 600, the second clamping block 300 loses the squeezing force of the protrusion 830 and moves towards the product, thus clamping it up, thus clamping the product 1.

[0078] In an alternative embodiment, such as Figure 10 As shown, it also includes a cover plate 910, which is hinged to the carrier plate 100 and covers the first surface 110 of the carrier plate 100.

[0079] In an alternative embodiment, such as Figure 9 As shown, it also includes a back plate 900 fixedly connected to the second surface 120 of the carrier plate 100, and the back plate 900 covers the groove 124.

[0080] In this embodiment, as Figure 9 As shown, a recess 124 is formed in the second surface 120 of the carrier plate 100, and the first connecting rod 700, the second connecting rod 800, and at least a portion of the control rod 600 are accommodated within the recess 124. Alternatively, the first clamping block 200, the second clamping block 300, the first connecting rod 700, the second connecting rod 800, and the control rod 600 are all no higher than the second surface 120 of the carrier plate 100. This allows the back plate to cover the recess 124.

[0081] In this embodiment, as Figure 3 As shown, the second surface 120 of the carrier plate 100 also forms a connecting groove 125 communicating with the groove 124; the control rod 600 is slidably connected to the connecting groove 125, and the control rod 600 includes a handle 640 located on the radially outer side of the carrier plate 100.

[0082] Specifically, by operating the handle 640, the control lever 600 is controlled to reciprocate between a first position and a second position. When the control lever 600 moves from the first position to the second position, the control lever 600 drives the first connecting rod 700 to move, thereby driving the first clamping block 200 from the first clamping position to the first unfolded position; simultaneously, the control lever 600 drives the second connecting rod 800 to move, thereby driving the second clamping block 300 from the second clamping position to the second unfolded position; when the control lever 600 moves from the second position to the first position, the first clamping block 200 moves from the first unfolded position to the first clamping position under the elastic action of the first elastic member 400; simultaneously, the second clamping block 300 moves from the second unfolded position to the second clamping position under the elastic action of the second elastic member 500.

[0083] This application employs a positioning post and guide groove structure on the connecting rod to reduce frictional resistance during the movement of the connecting rod and facilitate operation. Through the coordinated action of the control rod, connecting rod and elastic element, this application drives the clamping block to move to the clamping position or unfolding position. In conjunction with the protrusion on the connecting rod, a self-locking effect is achieved. The structure is simple and robust, easy to operate, reliable in function and long in service life.

[0084] It should be noted that the above description describes some embodiments of this disclosure. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in a different order than that shown in the above embodiments and still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0085] This disclosure is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A clamping device, characterized in that, include: The carrier plate includes a first surface and a second surface disposed opposite to each other. The first surface is provided with a first limiting boss that abuts against the first long side of the product and a second limiting boss that abuts against the first short side of the product. The carrier plate is provided with a plurality of through slots penetrating the carrier plate. The first clamping block is slidably disposed in the through groove, and the first clamping block includes a first clamping position and a first unfolding position. When the first clamping block is in the first clamping position, the first clamping block abuts against the second long side of the product. The second clamping block is slidably disposed in the through groove, and the second clamping block includes a second clamping position and a second unfolding position. When the second clamping block is in the second clamping position, the second clamping block abuts against the second short side of the product. A first elastic element is disposed in the through groove and abuts against the first clamping block; The second elastic element is disposed in the through groove and abuts against the second clamping block; A control lever, located on the second surface of the carrier plate, reciprocates between a first position and a second position; The first link has one end connected to the control rod and the other end abutting against the end of the first clamping block away from the first elastic member. The second link has one end connected to the control rod and the other end abutting against the end of the second clamping block away from the second elastic member. The control rod is provided with a plurality of first guide grooves, which are distributed at intervals along the movement direction of the control rod, and the axial direction of the first guide grooves is consistent with the movement direction of the control rod. A first positioning post that mates with the first guide groove is protruded on the second surface of the carrier plate.

2. The clamping device according to claim 1, characterized in that, The control rod has a mating groove at the position corresponding to the first connecting rod; One end of the first connecting rod is accommodated in the mating groove.

3. The clamping device according to claim 1, characterized in that, The other end of the first connecting rod is provided with a second guide groove extending along the axial direction of the first connecting rod, and a second positioning post that mates with the second guide groove is provided on the second surface of the carrier plate.

4. The clamping device according to claim 1, characterized in that, The control lever has a rotating shaft protruding from its position corresponding to the second connecting rod; one end of the second connecting rod has a slot that engages with the rotating shaft, and the second connecting rod rotates around the rotating shaft.

5. The clamping device according to claim 1, characterized in that, The other end of the second connecting rod is provided with a third guide groove extending along the axial direction of the second connecting rod, and a third positioning post that mates with the third guide groove is protruding on the second surface of the carrier plate. The second connecting rod is provided with protrusions on both sides and near the end of the third guide groove, and the protrusions abut against the second clamping block.

6. The clamping device according to claim 1, characterized in that, The second surface of the carrier plate is recessed to form a groove; the first connecting rod, the second connecting rod, and at least a portion of the control rod are received within the groove; Along the thickness direction of the carrier plate, the heights of the first connecting rod, the second connecting rod, and the control rod are all no higher than the second surface of the carrier plate.

7. The clamping device according to claim 6, characterized in that, The second surface of the carrier plate is also formed with a communicating groove that communicates with the groove, and the control rod is slidably connected to the communicating groove; The control lever includes a handle located radially outward from the carrier plate.

8. The clamping device according to claim 1, characterized in that, The carrier plate has a first mounting groove and a second mounting groove. The end of the first elastic member away from the first clamping block is fixed in the first mounting groove, and the end of the second elastic member away from the second clamping block is fixed in the second mounting groove.

9. The clamping device according to claim 1, characterized in that, The first clamping block includes a first abutting part and a first locking part connected to each other. The first abutting part is located on the second surface of the carrier plate and abuts against the first connecting rod. The first locking part is slidably disposed in the through groove and is higher than the first surface of the carrier plate and abuts against the second long side of the product. The second clamping block includes a second abutting part and a second locking part that are connected to each other. The second abutting part is located on the second surface of the carrier plate and abuts against the second connecting rod. The second locking part is slidably disposed in the through groove and is higher than the first surface of the carrier plate and abuts against the second short side of the product.

Images