CN116352632A - Adjustable clamp and testing device - Google Patents

Abstract

The invention provides an adjustable clamp which is suitable for clamping products with various regular planes and products with various irregular curved surfaces, and comprises two clamping mechanisms, wherein a clamping discharging area for clamping the products is arranged between the two clamping mechanisms, each clamping mechanism comprises a mounting seat and a plurality of groups of eccentric clamping assemblies arranged on the mounting seat, each eccentric clamping assembly is arranged on the mounting seat in a sliding manner, and the positions of the eccentric clamping assemblies for clamping the products are adjusted in a first direction by the sliding eccentric clamping assemblies; and rotating the eccentric clamping assemblies to adjust the size of the clamping and discharging area in the second direction, wherein each group of eccentric clamping assemblies is provided with a positioning assembly, and the positioning assemblies are used for keeping the eccentric clamping assemblies at preset clamping positions so that the two clamping mechanisms can keep a clamping state of a product. The invention also provides a testing device comprising the adjustable clamp.

Description

Adjustable clamp and testing device

Technical Field

The invention relates to the technical field of clamps, in particular to an adjustable clamp and a testing device.

Background

In order to make customers experience more comfort, many electronic products now use ergonomic curved designs. Various curved surface products appear on the market, and electronic products such as mobile phones, watches, televisions, mice and the like are increasingly designed by adopting ergonomic curved surfaces. Firstly, in terms of price, the price of a curved product is naturally higher than that of a common product due to technical cost. While the advantages of curved products do exist, curved products can improve the sensory experience, have a more comfortable wearing experience, and also have a better variety of use experiences. However, the curved product has a very good experience, and new problems are caused by design and production. Various tests are required to be performed on the product during the development process of the product to see whether the product meets the requirements of service performance. For example, electronic products such as mobile phones need to be tested for dropping, torsion, bending, and the like. In the testing process, a clamp is necessarily used for clamping an object to be tested.

In the current test, a planar clamp bracket is used for clamping a product, the clamp can only clamp the product with a fixed and regular appearance, and when the product with an irregular clamping surface is clamped, the product cannot be stably clamped, and the product is loose in the test process, so that the test data is inaccurate, and the product performance cannot be truly obtained.

Accordingly, there is a need for an adjustable clamp that can be automatically adjusted to accommodate a variety of regular planar products or a variety of irregularly curved products.

Disclosure of Invention

The invention aims to provide an adjustable clamp which can be automatically adjusted to be suitable for various regular plane products or various irregular curved surface products.

Another object of the present invention is to provide a testing device that can be used to test a variety of regular planar products or a variety of irregularly curved products.

In order to achieve the above purpose, the invention provides an adjustable clamp which is suitable for clamping products with various regular planes and products with various irregular curved surfaces, and comprises two clamping mechanisms, wherein a clamping and discharging area for clamping the products is arranged between the two clamping mechanisms, the clamping mechanisms comprise a mounting seat and a plurality of groups of eccentric clamping assemblies arranged on the mounting seat, the eccentric clamping assemblies are arranged on the mounting seat in a sliding manner, the positions of the eccentric clamping assemblies for clamping the products are adjusted in a first direction by sliding the eccentric clamping assemblies, and the eccentric clamping assemblies are rotated to adjust the sizes of the clamping and discharging areas in a second direction; each group of eccentric clamping assemblies is provided with a positioning assembly, and the eccentric clamping assemblies are kept at preset clamping positions by the positioning assemblies, so that the two clamping mechanisms can keep a clamping state of a product.

Preferably, the eccentric clamping assembly comprises a clamping piece, a rotating shaft is arranged on the clamping piece in a penetrating manner, and the rotating shaft is eccentrically arranged on one side of the clamping piece; the clamping part is operated to make the clamping part eccentrically rotate around the rotating shaft so as to adjust the clamping position of the clamping part in the second direction.

Preferably, a sliding groove is formed in the mounting seat, one end of the rotating shaft extends into the sliding groove, a sliding block is arranged on the end part of the rotating shaft, located in the sliding groove, of the rotating shaft, and the sliding block is arranged in the sliding groove in a sliding manner so as to adjust the clamping position of the clamping piece in the first direction.

Preferably, one end of the rotating shaft, which is far away from the sliding block, is provided with a locking piece, the sliding block drives the clamping piece to slide to a preset position through the rotating shaft, and the locking piece is operated to enable the rotating shaft to abut against the sliding groove so as to enable the sliding block to be positioned in the sliding groove.

Preferably, the clamping piece is connected with a power driving mechanism, so that the clamping piece can automatically rotate to a preset position by the power driving mechanism and is positioned at the preset position to keep clamping the product.

Preferably, the upper cover of the clamping piece is covered with a cover plate, the eccentric clamping assembly further comprises an operating piece, the operating piece is arranged on the cover plate, or the operating piece is arranged on the clamping piece, and the clamping piece is eccentrically rotated along the rotating shaft by operating the operating piece.

Preferably, the clamping piece is provided with a mounting groove, and the positioning assembly component is mounted in the mounting groove; the positioning assembly comprises a positioning piece and a driving piece, a mounting part for mounting the positioning piece is arranged in the mounting groove, the positioning piece is rotatably mounted on the mounting part, and the rotating shaft penetrates through the clamping piece and the positioning piece; the driving piece is installed in the installation groove and is linked with the clamping piece, and the positioning piece and the driving piece are matched to lock the driving piece in the first rotating direction so that the clamping piece keeps clamping the product.

Specifically, the positioning piece is a ratchet wheel, the driving piece is a pawl matched with the ratchet wheel, and the pawl pushes the ratchet wheel to rotate only in a preset direction by rotating the clamping piece, so that the clamping piece can keep clamping products.

Preferably, the clamping piece is provided with a soft clamping part along the periphery thereof, the clamping part is used for clamping a product, the friction force between the clamping piece and the surface of the product is increased by the clamping part, and the surface of the product can be prevented from being damaged.

The invention also provides a testing device, which comprises a testing platform and the adjustable clamp, wherein the adjustable clamp is movably arranged on the testing platform, a power assembly is arranged on the testing platform and is connected with one or two clamping mechanisms, and the power assembly acts to enable the two clamping mechanisms to be close to or far away from each other so as to be capable of loosening or clamping products.

Compared with the prior art, the adjustable clamp can be used for clamping products with various regular planes and products with various irregular curved surfaces. The adjustable clamp can be used for a testing device and can also be used for other mechanisms which need to position and process irregular curved surface products. By way of example, when various products are detected or tested on the testing device, the products can be clamped by the adjustable clamp, so that the testing efficiency and the testing precision are improved. The adjustable clamp comprises two clamping mechanisms, a clamping and discharging area for clamping products is arranged between the two clamping mechanisms, and the products are placed in the clamping and discharging area. The size of the clamping and discharging area between the two clamping mechanisms can be adjusted through the power assembly on the frame, so that workpieces with various sizes can be placed. The clamping mechanism comprises a mounting seat and a plurality of groups of eccentric clamping assemblies arranged on the mounting seat, and the eccentric clamping assemblies are arranged on the mounting seat in a sliding manner. Through the fine setting of multiunit eccentric clamping assembly for two fixture can be firm carry out the centre gripping to the product in the centre gripping blowing region. The eccentric clamping assembly is slid to adjust the position in the first direction at which the eccentric clamping assembly clamps the product. For example, any one of the eccentric clamping assemblies may be slid to better adjust the clamping point, making the clamping more secure, while also making the entire adjustable clamp adaptable to different sized products. Specifically, the eccentric clamping assemblies are rotated to adjust the size of the clamping and discharging area in a second direction, wherein the second direction is the width direction between the two eccentric clamping assemblies. Be provided with eccentric clamp material spare on the eccentric clamping assembly, when rotating the clamp material spare, the clamp material spare can be close to or keep away from the product in the centre gripping blowing region. Each group of eccentric clamping assemblies is provided with a positioning assembly, and the eccentric clamping assemblies are kept at preset clamping positions by the positioning assemblies, so that the two clamping mechanisms can keep a clamping state of a product. It will be appreciated that the positioning assembly is provided such that the clamping member can only rotate in one direction and cannot rotate in the opposite direction, thereby enabling the clamping member to remain in the clamping position to clamp the product without rotating in the opposite direction to release the product. The adjustable clamp can be adjusted to be suitable for clamping products with various regular planes and products with various irregular curved surfaces, and can keep clamping the products. The adjustable clamp disclosed by the invention is simple in structure, low in cost and convenient to operate, can be used for rapidly fixing products with irregular surfaces, and can be used for improving the testing efficiency and the testing precision in a testing device.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a block diagram of an adjustable clamp according to an embodiment of the present invention.

Fig. 2 is a block diagram of an adjustable clamp according to another embodiment of the present invention.

Fig. 3 is a block diagram of an adjustable clamp according to yet another embodiment of the present invention.

Fig. 4 is a block diagram of the clamping mechanism of fig. 1.

Fig. 5 is a structural view of the mount of fig. 4.

Fig. 6 is a block diagram of the eccentric clamping assembly of fig. 4.

Fig. 7 is an exploded view of the structure of fig. 6.

Fig. 8 is an internal structural view of fig. 4.

Fig. 9 is a structural view of the nip part in fig. 4.

Reference numerals illustrate:

100. an adjustable clamp; 101. a clamping mechanism; 102. a product; 103. clamping the discharging area;

10. an eccentric clamping assembly; 11. a clamping piece; 111. a mounting groove; 112. a groove; 113. a mounting part; 114. a tank body; 115. a clamping part; 12. a rotating shaft; 13. a positioning assembly; 131. a positioning piece; 132. a driving member; 14. a cover plate; 141. a mounting hole; 15. an operating member; 16. a locking member; 17. a slide block;

20. a mounting base; 21. and a sliding groove.

Detailed Description

In order to describe the technical content and constructional features of the present invention in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.

Referring to fig. 1 to 3, the present invention provides an adjustable clamp 100, which is suitable for clamping products 102 with various regular planes and products 102 with various irregular curved surfaces, and the adjustable clamp 100 comprises two clamping mechanisms 101. The present invention also provides a testing device (not shown) comprising a testing platform and the adjustable clamp 100 described above. The adjustable clamp 100 is movably mounted on a test platform, and a power assembly is arranged on the test platform and is connected to one or two clamping mechanisms 101, and the power assembly acts to enable the two clamping mechanisms 101 to approach or separate from each other so as to be capable of loosening or clamping a product 102. The power component can be a screw rod which can be manually operated or a motor, an air cylinder and the like. The two clamping mechanisms 101 can clamp and unclamp the product 102 in a threaded transmission or cylinder action or motor action mode, can directly clamp the product 102 with a regular surface, and can also be used for clamping the product 102 with a curved surface with an irregular surface. It will be appreciated that the two clamping mechanisms 101 are adjusted by the power assembly to a suitable distance to enable the product 102 to be placed, and the product 102 is then trimmed by the clamping mechanisms 101 themselves to clamp the product 102.

Referring to fig. 1 to 4, in some alternative embodiments, the adjustable fixture 100 includes two clamping mechanisms 101, and a clamping and discharging area 103 for clamping the product 102 is located between the two clamping mechanisms 101, and the lateral distance of the clamping and discharging area 103 can be adjusted on the test platform by a power assembly so as to be suitable for products 102 with various sizes. The clamping mechanism 101 includes a mounting base 20 and a plurality of sets of eccentric clamping assemblies 10 disposed on the mounting base 20. Each clamping mechanism 101 can be provided with a plurality of groups of eccentric clamping assemblies 10 on the mounting seat 20, the number of the eccentric clamping assemblies 10 can be set according to actual clamping requirements, and the length of the mounting seat 20 can be selected according to actual requirements. The eccentric clamping assembly 10 is slidably disposed on the mounting base 20. Specifically, the eccentric clamping assembly 10 is slid to adjust the position in the first direction at which the eccentric clamping assembly 10 clamps the product 102. The eccentric clamping assembly 10 slides on the mounting base 20, so that the clamping and discharging area 103 can be adjusted along the length direction of the mounting base 20, or the eccentric clamping assembly 10 slides in the clamping and discharging area 103 to a position capable of better clamping the product 102. The first direction is along the length of the mount 20. On the other hand, the eccentric clamping assembly 10 is rotated to adjust the size of the clamping discharge region 103 in a second direction, which is the width direction between the two clamping mechanisms 101. The rotation point on the eccentric clamping assembly 10 is eccentrically arranged, so when the eccentric clamping assembly 10 is rotated, different parts of the eccentric clamping assembly 10 form a clamping discharging area 103 so as to adjust the size of the clamping discharging area 103, and further the clamping piece 11 can be close to or far away from the product 102 in the clamping discharging area 103, so that the product 102 can be better clamped. Specifically, each set of eccentric clamping assemblies 10 is provided with a positioning assembly 13, and the eccentric clamping assemblies 10 are kept at preset clamping positions by the positioning assemblies 13, so that the two clamping mechanisms 101 can keep clamping states on the product 102. It will be appreciated that the positioning assembly 13 is provided so that the eccentric clamping assembly 10 can maintain a clamped condition on the product 102 without the product 102 being released and dropped, and the clamping is more stable. The predetermined clamping position is a position where the eccentric clamping assembly 10 clamps the corresponding product 102.

Referring to fig. 4 and fig. 6 to 8, in some alternative embodiments, the eccentric clamping assembly 10 includes a clamping member 11, a rotating shaft 12 is disposed on the clamping member 11 in a penetrating manner, and the rotating shaft 12 is disposed on one side of the clamping member 11 in an eccentric manner. Specifically, by operating the clamping member 11, the clamping member 11 is eccentrically rotated about the rotation axis 12 so as to adjust the clamping position of the clamping member 11 in the second direction. Illustratively, the cross-section of the clip 11 may be circular, oval or other curved shape. It will be appreciated that the rotational shaft 12 does not pass through the centre of the clamp 11 but rather passes eccentrically from one side of the clamp 11. When the clamping piece 11 rotates around the rotating shaft 12, the parts of the clamping piece 11 extending out of the mounting seat 20 are different and are used for forming the clamping and discharging area 103, and in the rotating process, the parts of the clamping piece 11 extending out of the mounting seat 20 are sequentially changed and gradually reduced or gradually increased, so that the size of the clamping and discharging area 103 can be changed, and further the product 102 in the clamping and discharging area 103 can be better clamped.

Referring to fig. 4 and 5, in some alternative embodiments, a chute 21 is formed on the mounting base 20, the rotating shaft 12 penetrates through the clamping member 11, and one end of the rotating shaft 12 extends into the chute 21. The end of the rotating shaft 12 located in the chute 21 is provided with a sliding block 17, and the sliding block 17 is slidably disposed in the chute 21 to adjust the clamping position of the clamping member 11 in the first direction. It will be appreciated that the rotating shaft 12 passes through the clamping member 11 and is in clearance fit with the clamping member 11, and that the clamping member 11 is capable of eccentric rotation about the rotating shaft 12. Meanwhile, a sliding block 17 matched with the sliding groove 21 is arranged at the end part of the rotating shaft 12, and the clamping piece 11 is manually or automatically pushed, so that the clamping piece 11 can slide along the sliding groove 21 through the sliding block 17, and then the clamping and discharging area 103 can be adjusted along the length direction of the mounting seat 20, or the clamping piece 11 slides in the clamping and discharging area 103 to a position capable of better clamping the product 102. In this embodiment, a locking member 16 is disposed at one end of the rotating shaft 12 away from the slider 17, and the locking member 16 is disposed on the cover 14, so as to facilitate operation. The rotation shaft 12 passes through the cover plate 14 to be connected to the locking member 16, and the cover plate 14 is provided with a mounting hole 141 through which the rotation shaft 12 passes. When the sliding block 17 slides in the sliding groove 21, the rotating shaft 12 can drive the material clamping piece 11 to slide to a preset position, and the preset position is a corresponding position where the material clamping piece 11 can clamp the product 102. At this time, the lock 16 is operated to actuate the rotation shaft 12 to abut against the slide groove 21, so that the slider 17 is positioned in the slide groove 21. It will be appreciated that the working position of the clamp 11 can be adjusted by the position of the slide 17 in the chute 21 and fixed by the locking member 16, so that the clamp 11 can accommodate different types of products 102. I.e. the locking member 16 simply locks the slide 17 in the slide 21 to position the clamping member 11 in the corresponding position of the mounting block 20, and further rotates the clamping member 11 to adjust the clamping position of the clamping member 11 in the lateral direction.

Illustratively, in some embodiments, the clamping member 11 is coupled to a power drive mechanism (not shown) by which the clamping member 11 can be automatically rotated to a predetermined position and the clamping member 11 positioned in the predetermined position to maintain the clamped product 102. It will be appreciated that the clamping member 11 is connected with a driving mechanism, which includes a motor, and the motor is started to drive the clamping member 11 to rotate so as to clamp the product 102. Then, the clamping force of the clamping piece 11 on the product 102 is controlled by adjusting the torque value of the motor. That is, the positioning assembly 13 may be a motor-driven mechanism by which the gripper 11 maintains a grip on the product 102.

Referring to fig. 7 to 9, in some alternative embodiments, the clamping member 11 is provided with a mounting groove 111, and the positioning component 13 is mounted in the mounting groove 111. Specifically, the positioning assembly 13 includes a positioning member 131 and a driving member 132. The mounting groove 111 is provided therein with a mounting portion 113 for mounting the positioning member 131, the mounting portion 113 has a protruding annular structure, and the positioning member 131 is rotatably mounted on the mounting portion 113. A through hole for passing the rotation shaft 12 therethrough is formed in the mounting groove 111. In the mounting groove 111, a mounting portion 113 is provided so as to protrude along the outer periphery of the through hole. The positioning member 131 is mounted on the mounting portion 113, and the positioning member 131 is in clearance fit with the mounting portion 113 so that the positioning member 131 can rotate around the mounting portion 113. The rotating shaft 12 penetrates through the clamping member 11 and the positioning member 131, i.e. a through hole for the rotating shaft 12 to pass through is also formed in the positioning member 131. On the other hand, the driving member 132 is installed in the installation groove 111 and is coupled with the clamping member 11, and the positioning member 131 and the driving member 132 cooperate to lock the driving member 132 in the first rotation direction so that the clamping member 11 keeps clamping the product 102. The mounting groove 111 is also provided with a groove body 114 for mounting a driving piece 132, and the driving piece 132 is mounted in the groove body 114 by a fixing piece and is in linkage with the clamping piece 11. It will be appreciated that when the clamping member 11 rotates, the driving member 132 rotates with the rotation of the clamping member 11 and can act on the positioning member 131, and the positioning member 131 and the driving member 132 cooperate to rotate in one direction about the mounting portion 113. At the same time, the positioning member 131 can lock the driving member 132 in the first rotational direction so that the clamping member 11 keeps clamping the product 102. In this embodiment, the first rotational direction is a direction in which the nip 11 rotates to be away from the product 102. That is, the driving member 132 cooperates with the positioning member 131, so that the clamping member 11 can only rotate close to the product 102 to clamp the product 102, and can not rotate away from the product 102 any more, so that the product 102 can be kept clamped. The clamping member 11 is remote from the product 102 and the entire clamping mechanism 101 can be controlled by a power assembly on the test platform.

Referring to fig. 7 and 8, in some alternative embodiments, the positioning member 131 is a ratchet and the driving member 132 is a pawl that mates with the ratchet. By rotating the clamping member 11, the pawl pushes the ratchet wheel to rotate only in a preset direction, so that the clamping member 11 can keep clamping the product 102. It will be appreciated that the ratchet is pushed by the pawl to perform a step movement, and the ratchet is rotated only in one direction but not inverted by the cooperation of the ratchet and the pawl. Thus, the clamping member 11 can only rotate in the direction approaching the product 102 and cannot be reversed, i.e. the clamping member 11 cannot rotate in the direction away from the product 102, so that the product 102 can be kept clamped. The positioning component 13 adopts a structure of matching the ratchet with the pawl, has simpler structure and convenient operation, does not need to be driven by a power piece, and has lower cost.

Referring to fig. 6 to 9, in some alternative embodiments, the clamping member 11 is provided with a soft clamping portion 115 along its peripheral side, and the clamping portion 115 is used to clamp the product 102. In this embodiment, through the distribution of the eccentric clamping members 11, the whole adjustable fixture 100 can adapt to an irregular curved surface, and a soft clamping portion 115 is arranged on the periphery of the clamping member 11, and the clamping portion 115 can be a silica gel ring sleeved on the periphery of the clamping member 11, so that the friction force between the clamping member and the surface of the product 102 can be increased through the silica gel ring, and meanwhile, the clamping of the surface of the product 102 can be avoided.

Referring to fig. 6 and 7, in some alternative embodiments, the material clamping member 11 is covered with a cover plate 14, and the cover plate 14 is covered on the mounting groove 111, so that a ratchet wheel and a pawl in the mounting groove 111 can be effectively protected, and the positioning effect of the positioning component 13 in the mounting groove 111 is prevented from being affected due to ash feeding or mistaken touch. The clamping piece 11 is provided with a groove 112 for installing the cover plate 14, and the cover plate 14 is installed in the groove 112 to form an integral structure with the clamping piece 11. Specifically, the eccentric clamping assembly 10 further includes an operating member 15, where the operating member 15 is disposed on the cover 14, or the operating member 15 is disposed on the clamping member 11, and the operating member 15 is operated to eccentrically rotate the clamping member 11 along the rotation shaft 12. It will be appreciated that pushing the operating member 15 allows the jaw member 11 to rotate about the rotational axis 12 on the mount 20 to enable the jaw member 11 to grip the product 102 adjacent the product 102. The operating member 15 may be disposed on the cover plate 14, and the operating member 15 may also be disposed on the material clamping member 11 and pass through the cover plate 14, where the operating member 15 is disposed on the upper surface of the cover plate 14, so as to facilitate rotation operation.

As shown in fig. 1 to 9, the adjustable clamp 100 of the present invention can be used to clamp a variety of regular planar products 102 and a variety of irregularly curved products 102. The adjustable fixture 100 can be used in a test apparatus, and can also be used in other mechanisms that require positioning of irregularly curved products 102. Illustratively, when various products 102 are tested or tested on a test device, the products 102 may be clamped by the adjustable clamp 100 to improve test efficiency and test accuracy. The adjustable clamp 100 comprises two clamping mechanisms 101, a clamping and discharging area 103 for clamping a product 102 is arranged between the two clamping mechanisms 101, and the product 102 is placed in the clamping and discharging area 103. The size of the clamping and discharging area 103 between the two clamping mechanisms 101 can be adjusted through a power assembly on the frame so as to be capable of placing workpieces with various sizes. The clamping mechanism 101 comprises a mounting seat 20 and a plurality of groups of eccentric clamping assemblies 10 arranged on the mounting seat 20, wherein the eccentric clamping assemblies 10 are arranged on the mounting seat 20 in a sliding manner. Fine tuning is performed through the eccentric clamping assemblies 10 of the multiple groups, so that the two clamping mechanisms 101 can firmly clamp the product 102 in the clamping and discharging area 103. Specifically, the eccentric clamping assembly 10 is slid to adjust the position in the first direction at which the eccentric clamping assembly 10 clamps the product 102. The eccentric clamping assemblies 10 are rotated to adjust the size of the clamping discharge region 103 in a second direction, which is the width direction between the two eccentric clamping assemblies 10. The eccentric clamping assembly 10 is provided with an eccentric clamping piece 11, and when the clamping piece 11 is rotated, the clamping piece 11 can be close to or far away from a product 102 in the clamping and discharging area 103. Illustratively, any one of the eccentric clamping assemblies 10 can be slid to better adjust the clamping points, making the clamping more secure, while also enabling the entire adjustable clamp 100 to be adapted to different sized products 102. Wherein, each eccentric clamping assembly 10 is provided with a positioning assembly 13, and the eccentric clamping assemblies 10 are kept at preset clamping positions by the positioning assemblies 13, so that the two clamping mechanisms 101 can keep clamping states on the products 102. It will be appreciated that the positioning assembly 13 is provided such that the clamp 11 can only rotate in one direction and cannot rotate in the opposite direction, thereby allowing the clamp 11 to remain in the clamping position to clamp the product 102 without rotating in the opposite direction to unclamp the product 102. The adjustable clamp 100 of the present invention is capable of adjusting to accommodate a variety of regular planar products 102 and a variety of irregularly curved products 102, and maintaining a clamp of the products 102. The adjustable clamp 100 is simple in structure, low in cost and convenient to operate, can be used for rapidly fixing products 102 with irregular surfaces, and can improve testing efficiency and testing precision in a testing device.

The foregoing disclosure is only illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.

Claims (10)

1. The adjustable clamp is suitable for clamping products with various regular planes and products with various irregular curved surfaces, and is characterized by comprising two clamping mechanisms, wherein a clamping and discharging area for clamping the products is arranged between the two clamping mechanisms, each clamping mechanism comprises a mounting seat and a plurality of groups of eccentric clamping assemblies arranged on the mounting seat, each eccentric clamping assembly is arranged on the mounting seat in a sliding manner, the position of the eccentric clamping assembly for clamping the products is adjusted in a first direction by sliding the eccentric clamping assembly, and the size of the clamping and discharging area is adjusted in a second direction by rotating the eccentric clamping assembly; each group of eccentric clamping assemblies are provided with a positioning assembly, and the eccentric clamping assemblies are kept at preset clamping positions by the aid of the positioning assemblies, so that the two clamping mechanisms can keep a clamping state of the product.

2. The adjustable clamp of claim 1, wherein the eccentric clamping assembly comprises a clamping member, a rotating shaft is arranged on the clamping member in a penetrating manner, and the rotating shaft is eccentrically arranged on one side of the clamping member; and the clamping part is operated so as to eccentrically rotate around the rotating shaft, so that the clamping position of the clamping part in the second direction can be adjusted.

3. The adjustable clamp of claim 2, wherein the mounting base is provided with a chute, one end of the rotating shaft extends into the chute, a sliding block is arranged at the end of the rotating shaft in the chute, and the sliding block is slidably arranged in the chute so as to adjust the clamping position of the clamping piece in the first direction.

4. An adjustable clamp according to claim 3 wherein a locking member is provided at an end of the rotatable shaft remote from the slide block, the slide block being adapted to move the clamping member to a predetermined position by the rotatable shaft, the locking member being operable to urge the rotatable shaft against the chute to locate the slide block within the chute.

5. An adjustable clamp according to claim 2 wherein the clamping member is coupled to a power drive mechanism by which the clamping member is automatically rotated to a predetermined position and positioned in the predetermined position to maintain clamping of the product.

6. The adjustable clamp of claim 2 wherein the clamping member is covered with a cover plate, and the eccentric clamping assembly further comprises an operating member disposed on the cover plate or on the clamping member, whereby the operating member is operated to eccentrically rotate the clamping member along the rotational axis.

7. The adjustable clamp of claim 2, wherein the clamping member is provided with a mounting groove, and the positioning assembly is mounted in the mounting groove; the positioning assembly comprises a positioning piece and a driving piece, a mounting part for mounting the positioning piece is arranged in the mounting groove, the positioning piece is rotatably mounted on the mounting part, and the rotating shaft penetrates through the clamping piece and the positioning piece; the driving piece is installed in the installation groove and is linked with the clamping piece, and the positioning piece and the driving piece are matched to lock the driving piece in a first rotating direction so that the clamping piece keeps clamping the product.

8. The adjustable clamp of claim 7 wherein the positioning member is a ratchet and the driving member is a pawl that mates with the ratchet, the clamping member being rotated to cause the pawl to urge the ratchet to rotate only in a predetermined direction so that the clamping member can remain clamped against the product.

9. The adjustable clamp of claim 2, wherein the clamping member is provided with a soft clamping portion along a peripheral side thereof, the clamping portion being used for clamping the product, whereby the clamping portion increases friction between the clamping member and the surface of the product and prevents damage to the surface of the product.

10. A testing device comprising a testing platform, and an adjustable clamp according to any one of claims 1 to 9, wherein the adjustable clamp is movably mounted on the testing platform, a power assembly is arranged on the testing platform, the power assembly is connected to one or both clamping mechanisms, and the power assembly acts to enable the two clamping mechanisms to approach or separate from each other so as to be capable of loosening or clamping the product.

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