Clamping device

Abstract

A clamping device is suitable for a narrow operation space, clamping efficiency can be improved, use cost can be reduced, and the clamping device comprises a cylinder body, a plurality of containing grooves formed in the cylinder body and arranged in the first direction at intervals, a first air inlet groove and a second air inlet groove, and the first air inlet groove and the second air inlet groove are arranged in the second direction at intervals, penetrate through the first direction and communicate with the containing grooves. The multiple linkage assemblies are arranged in one-to-one correspondence with the multiple containing grooves and each comprise a connecting piece and two linkage pieces, each connecting piece comprises a piston body and a connecting body, the piston bodies abut against the groove walls of the corresponding containing grooves in an airtight mode, the connecting bodies are connected with the piston bodies and penetrate out of the corresponding containing grooves, and the two linkage pieces are oppositely arranged and rotationally connected with the cylinder body; the two linkage pieces are movably connected with the connecting body; and the multiple sets of clamping assemblies are arranged in one-to-one correspondence with the multiple sets of linkage assemblies, each clamping assembly comprises two clamping pieces movably connected with the corresponding linkage pieces and provided with penetrating grooves, and two limiting pieces movably arranged in the corresponding penetrating grooves in a penetrating mode and connected with the cylinder body.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping equipment, in particular to a clamping device. Background Art

[0002] In specific application scenarios in the manufacturing industry, especially when fixing and clamping small workpieces in narrow spaces, traditional process methods face many challenges. Currently, the two commonly used methods are using a fixture with a cover to clamp the workpiece, and using a linear cylinder to clamp the workpiece from the side.

[0003] However, the clamping method of the jig and cover plate requires manual operation, which is insufficient in automation and flexibility and limits production efficiency. On the other hand, although the cylinder side clamping method has certain advantages in providing clamping force, its large space occupation and complex mechanical structure design make this method unsuitable for use in manufacturing environments with limited space. Utility Model Content

[0004] In view of the above situation, it is necessary to provide a clamping device that is suitable for narrow working spaces, improves clamping efficiency and reduces use costs.

[0005] The present application provides a clamping device, comprising:

[0006] A cylinder body, provided with a first air inlet groove, a second air inlet groove, and a plurality of receiving grooves arranged in the cylinder body and spaced apart along a first direction, the first air inlet groove and the second air inlet groove being spaced apart along a second direction on the circumference of the cylinder body, the first air inlet groove and the second air inlet groove both passing through and connecting the plurality of receiving grooves along the first direction, and being used to respectively transport gas provided by an external air source into the plurality of receiving grooves;

[0007] A plurality of linkage components, all connected to the cylinder body and arranged one by one with the plurality of receiving grooves along the first direction, each group of the linkage components comprises a connecting member and two linkage members, the connecting member comprises a piston body and a connecting body, the piston body abuts against the groove wall of the corresponding receiving groove in an airtight manner to separate the receiving groove into a first space and a second space respectively connected with the first air inlet groove and the second air inlet groove, one end of the connecting body is connected to the piston body, and the other end of the connecting body passes through the corresponding receiving groove, the two linkage members are arranged opposite to each other and are both rotatably connected to the cylinder body, and the two linkage members are both movably connected to one end of the connecting body away from the piston body;

[0008] A plurality of groups of clamping components are arranged in one-to-one correspondence with the plurality of groups of linkage components, and each group of the clamping components includes two clamping members and two limiting members, the two clamping members are respectively movably connected to one end of the corresponding linkage member away from the connecting body and are both provided with a through groove, the through groove penetrates the clamping member along the first direction and extends along the third direction, the two limiting members are movably passed through the corresponding through groove and connected to the cylinder body, the limiting member abuts against the two opposite groove walls of the through groove along the second direction to limit the movement of the clamping member along the third direction, the piston body drives the connecting body to drive the two linkage members to move toward or away from each other under the action of the gas in the first space or the second space, so that the two clamping members, driven by the corresponding linkage members, move toward each other along the third direction to clamp the workpiece or move away from each other to loosen the workpiece, and the first direction, the second direction and the third direction are perpendicular to each other.

[0009] When the clamping device clamps the workpiece, the first air inlet groove transports gas provided by an external air source into the first space of the multiple storage grooves, and the piston body drives the connecting body to move away from the linkage part under the action of the gas, so that the two linkage parts rotate toward each other under the drive of the connecting body, and the two clamping parts move toward each other along the third direction under the drive of the two linkage parts rotating toward each other and the limit of the two limit parts, so that the two clamping parts of the multiple clamping assemblies can clamp multiple workpieces at the same time; when the clamping device loosens the workpiece, the second air inlet groove transports gas provided by an external air source into the second space of the multiple storage grooves, and the piston body drives the connecting body to move close to the linkage part under the action of the gas, so that the two linkage parts rotate away from each other under the drive of the connecting body, and the two clamping parts move away from each other along the third direction under the drive of the two linkage parts rotating away from each other and the limit of the two limit parts, so that the two clamping parts of the multiple clamping assemblies can loosen the workpiece at the same time. In this way, by simultaneously delivering gas to the first space or the second space of multiple storage grooves through the first air inlet groove or the second air inlet groove, multiple piston bodies can be driven to move away from or close to the corresponding linkage parts in the second direction, so as to drive the two linkage parts to rotate toward or away from each other synchronously, and then the two linkage parts drive the two clamping parts to clamp or loosen the workpiece, thereby realizing pneumatically driven clamping of multiple workpieces. There is no need to manually lock the fixture to achieve the operation of clamping the workpiece, which improves the clamping efficiency, simplifies the mechanical structure of the clamping device, and reduces the cost of use. By using two limit members to abut against the two opposite groove walls of the through groove in the second direction, the two clamping parts always move toward or away from each other in the third direction under the limitation of the two limit members, so that the driving source provided in the second direction drives the two clamping parts to clamp the workpiece in the third direction, avoiding the complex driving source and the clamping parts from occupying too large an installation space in the horizontal direction, thereby making the clamping device suitable for narrow working spaces.

[0010] In some embodiments, the clamping member comprises:

[0011] A support body, the support body is arranged on a side of the linkage member away from the connecting body and is movably connected to the corresponding linkage member, and the through groove is provided in the support body;

[0012] A flexible clamping body is connected to one end of the support body away from the linkage member, and the flexible clamping body is used for flexibly clamping the workpiece under the drive of the support body.

[0013] In some embodiments, the support comprises:

[0014] A first supporting portion, movably connected to the corresponding linkage member, wherein the through slot is provided in the first supporting portion;

[0015] A second supporting portion protrudes from a side wall of the first supporting portion along the first direction;

[0016] A third supporting portion is protruded along the second direction on a side of the second supporting portion facing the flexible clamping body and is connected to the flexible clamping body.

[0017] In some embodiments, the linkage comprises:

[0018] The first linkage;

[0019] A second linkage body arranged perpendicularly to the first linkage body;

[0020] A rotating shaft, movably disposed along the first direction through one end of the first linkage body adjacent to the second linkage body and rotatably connected to the cylinder body;

[0021] A first movable body, movably disposed in the connecting body along the first direction and movably connected to the first linkage body; and

[0022] A second movable body is movably disposed in the clamping member along the second direction and is movably connected to the second linkage body.

[0023] In some embodiments, the first linkage body and the second linkage body are respectively provided with a first hole and a second hole, the first hole is provided at one end of the first linkage body away from the second linkage body, and the second hole is provided at one end of the second linkage body away from the first linkage body, and the first hole and the second hole are respectively loosely matched with the first movable body and the second movable body.

[0024] In some embodiments, the linker comprises:

[0025] A connecting portion, one end of which penetrates into the corresponding receiving groove and is connected to the piston body;

[0026] The raised portion is convexly arranged at one end of the connecting portion away from the piston body and is movably connected to the two linkage members. The cross-sectional area of ​​the raised portion along the first direction is smaller than the cross-sectional area of ​​the connecting portion along the first direction.

[0027] In some embodiments, the piston body comprises:

[0028] A piston portion, disposed in the corresponding receiving groove and connected to the connecting body;

[0029] The sealing part is sleeved on the piston part and abuts against the groove wall of the receiving groove in an airtight manner.

[0030] In some embodiments, the cylinder comprises:

[0031] A main body, wherein the first air inlet groove, the second air inlet groove and the plurality of receiving grooves are all provided in the main body;

[0032] A plurality of side panels are arranged at intervals along the first direction and are protruded from one end of the main body adjacent to the clamping member. A receiving groove is formed between two adjacent side panels. The plurality of receiving grooves are arranged in one-to-one correspondence with the plurality of storage grooves. The receiving grooves receive the corresponding linkage member, the corresponding clamping member and the corresponding limiting member.

[0033] In some embodiments, the accommodating groove is loosely matched with the corresponding clamping member and the corresponding linkage member along the first direction.

[0034] In some embodiments, the receiving groove includes a first groove and a second groove, both ends of the second groove are connected to the first groove and the receiving groove along the second direction respectively, the cross-sectional area of ​​the first groove along the first direction is larger than the cross-sectional area of ​​the second groove along the first direction, and the piston body and the connecting body are respectively airtightly abutted against the groove wall of the first groove and the groove wall of the second groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A schematic diagram of the three-dimensional structure of the clamping device provided in an embodiment of the present application.

[0036] Figure 2 for Figure 1 The shown schematic cross-sectional view of the clamping device along the II-II direction.

[0037] Figure 3 for Figure 1 A schematic diagram of the structural breakdown of the clamping device shown.

[0038] Figure 4 for Figure 3 The schematic cross-sectional view of the cylinder body in the clamping device shown is along the IV-IV direction.

[0039] Main component symbols

[0040] Clamping device 100

[0041] Cylinder 10

[0042] Storage slot 11

[0043] First Space 111

[0044] Second Space 112

[0045] First slot 113

[0046] Second slot 114

[0047] The first air inlet groove 12

[0048] Second air inlet groove 13

[0049] Body 14

[0050] Side Panel 15

[0051] Accommodation slot 151

[0052] Linkage component 20

[0053] Connector 21

[0054] Piston body 211

[0055] Piston 2111

[0056] Sealing part 2112

[0057] Connector 212

[0058] Connection 2121

[0059] Raised part 2122

[0060] Linkage 22

[0061] First linkage body 221

[0062] First hole 2211

[0063] Second linkage 222

[0064] The second hole 2221

[0065] Shaft 223

[0066] First movable body 224

[0067] The second movable body 225

[0068] Clamping assembly 30

[0069] Clamp 31

[0070] Through slot 311

[0071] Support body 312

[0072] First support portion 3121

[0073] Second support portion 3122

[0074] The third support portion 3123

[0075] Flexible clamping body 313

[0076] Limiting piece 32 DETAILED DESCRIPTION

[0077] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0078] In the description of the present application, it should be understood that the terms 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 the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, it should be noted that the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0079] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0080] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0081] See also Figure 1The embodiment of the present application provides a clamping device 100, including a cylinder body 10, a plurality of linkage components 20 and a plurality of clamping components 30. The clamping device 100 is used to clamp and fix a plurality of workpieces.

[0082] For ease of description, a three-dimensional coordinate system is established in some drawings, with the Y-axis direction being the first direction, the Z-axis direction being the second direction, and the X-axis direction being the third direction, wherein the X-axis direction, the Y-axis direction, and the Z-axis direction are perpendicular to each other.

[0083] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The cylinder body 10 is provided with a first air inlet groove 12, a second air inlet groove 13 and a plurality of receiving grooves 11 which are arranged in the cylinder body 10 and are separated along the Y-axis direction. The first air inlet groove 12 and the second air inlet groove 13 are arranged at intervals on the circumferential side of the cylinder body 10 along the Z-axis direction. The first air inlet groove 12 and the second air inlet groove 13 both penetrate and connect the plurality of receiving grooves 11 along the Y-axis direction, and are used to transport the gas provided by an external air source to the plurality of receiving grooves 11 respectively.

[0084] A plurality of linkage components 20 are connected to the cylinder body 10 and are respectively arranged in one-to-one correspondence with a plurality of storage grooves 11 along the Y-axis direction. Each group of linkage components 20 includes a connecting member 21 and two linkage members 22. The connecting member 21 includes a piston body 211 and a connecting body 212. The piston body 211 is airtightly abutted against the groove wall of the corresponding storage groove 11 to separate the storage groove 11 into a first space 111 and a second space 112 which are respectively connected to the first air inlet groove 12 and the second air inlet groove 13. One end of the connecting body 212 is connected to the piston body 211, and the other end of the connecting body 212 passes through the corresponding storage groove 11. The two linkage members 22 are relatively arranged and are both rotatably connected to the cylinder body 10. The two linkage members 22 are both movably connected to one end of the connecting body 212 away from the piston body 211.

[0085] The multiple groups of clamping assemblies 30 are arranged in a one-to-one correspondence with the multiple groups of linkage assemblies 20. Each group of clamping assemblies 30 includes two clamping members 31 and two limiting members 32. The two clamping members 31 are respectively movably connected to one end of the corresponding linkage member 22 away from the connecting body 212 and are both provided with a through groove 311. The through groove 311 penetrates the clamping member 31 along the Y-axis direction and extends along the X-axis direction. The two limiting members 32 are movably penetrated in the corresponding through groove 311 and connected to the cylinder body 10. The limiting member 32 abuts against the two opposite groove walls of the through groove 311 along the Z-axis direction to limit the movement of the clamping member 31 along the X-axis direction. The piston body 211 drives the connecting body 212 under the action of the gas in the first space 111 or the second space 112 to drive the two linkage members 22 to move toward or away from each other, so that the two clamping members 31 move toward each other along the X-axis direction to clamp the workpiece or move away from each other to loosen the workpiece under the drive of the corresponding linkage member 22.

[0086] When the clamping device 100 clamps a workpiece, the first air inlet groove 12 delivers gas provided by an external gas source to the first space 111 of the plurality of storage grooves 11, and the piston body 211 drives the connecting body 212 to move away from the linkage member 22 under the action of the gas, so that the two linkage members 22 rotate toward each other under the drive of the connecting body 212, and the two clamping members 31 move toward each other along the X-axis direction under the drive of the two linkage members 22 rotating toward each other and the limit of the two limit members 32, so that the two clamping members 31 of the plurality of clamping assemblies 30 clamp a plurality of workpieces at the same time. When the clamping device 100 loosens the workpiece, the second air inlet groove 13 transports the gas provided by the external air source to the second space 112 of the multiple storage grooves 11, and the piston body 211 drives the connecting body 212 to move close to the linkage member 22 under the action of the gas, so that the two linkage members 22 rotate in opposite directions under the drive of the connecting body 212, and the two clamping members 31 move in opposite directions along the X-axis direction under the drive of the two linkage members 22 rotating in opposite directions and the limitation of the two limiting members 32, so that the two clamping members 31 of the multiple clamping assemblies 30 loosen the workpiece at the same time. In this way, by simultaneously delivering gas to the first space 111 or the second space 112 of the plurality of storage grooves 11 through the first air inlet groove 12 or the second air inlet groove 13, the plurality of piston bodies 211 can be driven to move away from or close to the corresponding linkage members 22 along the Z-axis direction, so as to drive the two linkage members 22 to rotate synchronously toward or away from each other, and then the two linkage members 22 drive the two clamping members 31 to clamp or loosen the workpiece, thereby realizing pneumatically driven clamping of multiple workpieces, and no manual locking of the fixture is required to achieve the operation of clamping the workpiece, thereby improving the clamping efficiency. The mechanical structure of the clamping device 100 is simplified and the use cost is reduced. The two limit members 32 are abutted against the two opposite groove walls of the through groove 311 along the Z-axis direction, so that the two clamping members 31 always move toward or away from each other along the X-axis direction under the limitation of the two limit members 32, so that the two clamping members 31 are driven by the driving source provided along the Z-axis direction to clamp the workpiece along the X-axis direction, avoiding the complex driving source and the clamping members 31 from occupying too large an installation space in the horizontal direction, thereby making the clamping device 100 suitable for narrow working spaces.

[0087] See also Figure 3 In some embodiments, the clamping member 31 includes a support body 312 and a flexible clamping body 313. The support body 312 is disposed on a side of the linkage member 22 away from the connecting body 212 and is movably connected to the corresponding linkage member 22, and the through groove 311 is provided in the support body 312. The flexible clamping body 313 is connected to an end of the support body 312 away from the linkage member 22, and the flexible clamping body 313 is used to flexibly clamp the workpiece under the drive of the support body 312. Exemplarily, the material of the flexible clamping body 313 can be eutectic.

[0088] Thus, by setting the specific structure of the clamping member 31, the flexible clamping body 313 can flexibly clamp the workpiece under the drive of the support body 312, thereby reducing the damage of the clamping member 31 to the workpiece, and improving the clamping stability and the quality of the workpiece.

[0089] Please continue reading Figure 3 In some embodiments, the support body 312 includes a first support portion 3121, a second support portion 3122, and a third support portion 3123. The first support portion 3121 is movably connected to the corresponding linkage member 22, and the through slot 311 is provided in the first support portion 3121. The second support portion 3122 is protruded on the side wall of the first support portion 3121 along the Y-axis direction. The third support portion 3123 is protruded on the side of the second support portion 3122 facing the flexible clamping body 313 along the Z-axis direction and is connected to the flexible clamping body 313. Among them, the first support portions 3121 of the two support bodies 312 are staggered along the Y-axis direction.

[0090] In this way, by setting the specific structure of the above-mentioned support body 312, the spatial layout of the support body 312 can be optimized and the installation space can be effectively utilized. At the same time, the first support parts 3121 of the two support bodies 312 are staggered along the Y-axis direction, which can avoid collision when the two support bodies 312 drive the two flexible clamping bodies 313 to move toward each other, thereby ensuring that the two support bodies 312 move toward each other stably.

[0091] It can be understood that each first support portion 3121 is provided with two through grooves 311, and the two through grooves 311 are arranged at intervals along the X-axis direction. The two limiting members 32 respectively pass through the two through grooves 311 of each first support portion 3121. In this way, the two limiting members 32 can simultaneously cooperate with the two through grooves 311 of the first support portion 3121 to limit the movement direction of the first support portion 3121, and then limit the movement direction of the two clamping members 31, which is beneficial to ensure the limiting stability of the limiting members 32.

[0092] See also Figure 2 and Figure 3 In some embodiments, the linkage 22 includes a first linkage 221, a second linkage 222, a rotating shaft 223, a first movable body 224, and a second movable body 225. The first linkage 221 and the second linkage 222 are arranged perpendicular to each other. The rotating shaft 223 is movably arranged along the Y-axis direction through one end of the first linkage 221 adjacent to the second linkage 222 and is rotatably connected to the cylinder body 10. The first movable body 224 is movably arranged along the Y-axis direction through the connecting body 212 and is movably connected to the first linkage 221, and the second movable body 225 is movably arranged along the Y-axis direction through the clamping member 31 and is movably connected to the second linkage 222. It can be understood that in this embodiment, the two linkages 22 share the same first movable body 224, so that the connecting body 212 drives the two first linkages 221 to rotate synchronously through the first movable body 224.

[0093] In this way, a stable mechanical frame is formed by the mutually perpendicular arrangement of the first linkage body 221 and the second linkage body 222. By arranging the rotating shaft 223 to pass through the first linkage body 221 along the Y-axis direction and be rotatably connected with the cylinder body 10, the connecting body 212 can drive the first linkage body 221 and the second linkage body 222 to rotate relative to the cylinder body 10 through the first movable body 224, so that the rotating second linkage body 222 drives the clamping member 31 along the third motion through the second movable body 225, thereby realizing efficient force transmission, and thereby enabling the clamping member 31 to stably clamp the workpiece.

[0094] Please continue reading Figure 2 and Figure 3 In some embodiments, the first linkage body 221 and the second linkage body 222 are respectively provided with a first hole 2211 and a second hole 2221, the first hole 2211 is provided at one end of the first linkage body 221 away from the second linkage body 222, the second hole 2221 is provided at one end of the second linkage body 222 away from the first linkage body 221, and the first hole 2211 and the second hole 2221 are respectively clearance-matched with the first movable body 224 and the second movable body 225. Exemplarily, the first hole 2211 and the second hole 2221 may be round holes, and in this embodiment, the first hole 2211 and the second hole 2221 are round holes with openings, so that the first movable body 224 and the second movable body 225 can be installed in the corresponding round holes.

[0095] In this way, by setting the first hole 2211 and the second hole 2221 to respectively cooperate with the first movable body 224 and the second movable body 225 with a clearance, the first hole 2211 and the second hole 2221 can provide a sufficiently large activity space for the first movable body 224 and the second movable body 225 respectively, so that the first movable body 224 and the second movable body 225 can rotate or translate in the corresponding holes, so that the connecting body 212 drives the first linkage body 221 and the second linkage body 222 to rotate through the first movable body 224, so that the second linkage body 222 drives the clamping member 31 to move along the X-axis direction through the second movable body 225, so as to convert pneumatic transmission into mechanical movement, thereby realizing precise control and rotation of the linkage assembly 20.

[0096] See also Figure 2 In some embodiments, the connecting body 212 includes a connecting portion 2121 and a protruding portion 2122. One end of the connecting portion 2121 penetrates into the corresponding receiving groove 11 and is connected to the piston body 211. The protruding portion 2122 is convexly arranged at one end of the connecting portion 2121 away from the piston body 211 and is movably connected to the two linkage members 22, and the cross-sectional area of ​​the protruding portion 2122 along the Y-axis direction is smaller than the cross-sectional area of ​​the connecting portion 2121 along the Y-axis direction.

[0097] In this way, by setting the cross-sectional area of ​​the protrusion 2122 to be smaller than the cross-sectional area of ​​the connecting portion 2121, an avoidance space can be formed between the protrusion 2122 and the connecting portion 2121. The avoidance space provides a sufficiently large space for the rotation of the linkage part 22, thereby preventing the linkage part 22 from interfering with the connecting body 212 during the rotation process and causing it to be unable to rotate.

[0098] Please continue reading Figure 2 In some embodiments, the piston body 211 includes a piston portion 2111 and a sealing portion 2112. The piston portion 2111 is disposed in the receiving groove 11 and connected to the connecting body 212. The sealing portion 2112 is sleeved on the piston portion 2111 and abuts against the groove wall of the receiving groove 11 in an airtight manner. Exemplarily, the sealing portion 2112 may be a sealing ring.

[0099] In this way, by setting the specific structure of the above-mentioned piston body 211, the sealing portion 2112 can effectively prevent the gas from leaking in the gap between the piston body 211 and the storage groove 11, ensuring that the piston body 211 stably drives the connecting body 212 to move under the action of the gas, thereby improving the operation stability. In addition, the sealing portion 2112 can also reduce the direct contact between the piston portion 2111 and the groove wall of the storage groove 11, reduce the wear of the piston portion 2111, and extend the service life of the piston body 211.

[0100] See also Figure 1 , Figure 2 and Figure 3 In some embodiments, the cylinder body 10 includes a main body 14 and a plurality of side plates 15. The first air inlet groove 12, the second air inlet groove 13 and the plurality of receiving grooves 11 are all provided in the main body 14. The plurality of side plates 15 are arranged at intervals along the Y-axis direction and are all convexly arranged at one end of the main body 14 adjacent to the clamping member 31, and a receiving groove 151 is formed between two adjacent side plates 15, and the receiving groove 151 receives the corresponding linkage member 22, the corresponding clamping member 31 and the corresponding limit member 32, wherein the linkage member 22 is rotatably connected to the side plate 15, and the limit member 32 is fixedly connected to the side plate 15.

[0101] In this way, by integrating the storage groove 11, the first air inlet groove 12 and the second air inlet groove 13 in the main body 14, and accommodating the linkage member 22 and the limit member 32 into the accommodating groove 151 of the side panel 15, the layout of the clamping device 100 is reasonable and compact, which reduces the space occupied by the clamping device 100 and is conducive to being suitable for narrow working environments.

[0102] In some embodiments, the accommodating groove 151 is clearance-matched with the clamping member 31 and the linkage member 22 along the Y-axis direction, which can reduce the wear between the clamping member 31 and the linkage member 22 and the accommodating groove 151 during operation, which is beneficial to ensure the normal operation of the clamping member 31 and the linkage member 22. In addition, it is also convenient for replacing and maintaining the clamping member 31 and the linkage member 22. At the same time, the two opposite groove walls of the accommodating groove 151 along the Y-axis direction limit the clamping member 31 and the linkage member 22 to prevent the clamping member 31 and the linkage member 22 from swinging along the Y-axis direction.

[0103] See also Figure 4 In some embodiments, the receiving groove 11 includes a first groove 113 and a second groove 114, and both ends of the second groove 114 are connected to the first groove 113 and the receiving groove 151 along the Z-axis direction respectively. The cross-sectional area of ​​the first groove 113 along the Y-axis direction is larger than the cross-sectional area of ​​the second groove 114 along the Y-axis direction, and the piston body 211 and the connecting body 212 are respectively airtightly abutted against the groove wall of the first groove 113 and the groove wall of the second groove 114.

[0104] In this way, by setting the specific structure of the storage groove 11, the piston body 211 and the connecting body 212 can be airtightly abutted against the groove wall of the first groove 113 and the groove wall of the second groove 114 respectively, so that the piston body 211 and the connecting body 212 cooperate to separate the first groove 113 into a first space 111 and a second space 112, while avoiding the cross-sectional area of ​​the connecting body 212 along the Y-axis direction being too large to block the first space 111.

[0105] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the preferred embodiments, a person of ordinary skill in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. A clamping device, characterized in that: include: A cylinder body, provided with a first air inlet groove, a second air inlet groove, and a plurality of receiving grooves arranged in the cylinder body and spaced apart along a first direction, the first air inlet groove and the second air inlet groove being spaced apart along a second direction on the circumference of the cylinder body, the first air inlet groove and the second air inlet groove both passing through and connecting the plurality of receiving grooves along the first direction, and being used to respectively transport gas provided by an external air source into the plurality of receiving grooves; A plurality of linkage components, all connected to the cylinder body and arranged one by one with the plurality of receiving grooves along the first direction, each group of the linkage components comprises a connecting member and two linkage members, the connecting member comprises a piston body and a connecting body, the piston body abuts against the groove wall of the corresponding receiving groove in an airtight manner to separate the receiving groove into a first space and a second space respectively connected with the first air inlet groove and the second air inlet groove, one end of the connecting body is connected to the piston body, and the other end of the connecting body passes through the corresponding receiving groove, the two linkage members are arranged opposite to each other and are both rotatably connected to the cylinder body, and the two linkage members are both movably connected to one end of the connecting body away from the piston body; A plurality of groups of clamping components are arranged in one-to-one correspondence with the plurality of groups of linkage components, and each group of the clamping components includes two clamping members and two limiting members, the two clamping members are respectively movably connected to one end of the corresponding linkage member away from the connecting body and are both provided with a through groove, the through groove penetrates the clamping member along the first direction and extends along the third direction, the two limiting members are movably passed through the corresponding through groove and connected to the cylinder body, the limiting member abuts against the two opposite groove walls of the through groove along the second direction to limit the movement of the clamping member along the third direction, the piston body drives the connecting body to drive the two linkage members to move toward or away from each other under the action of the gas in the first space or the second space, so that the two clamping members, driven by the corresponding linkage members, move toward each other along the third direction to clamp the workpiece or move away from each other to loosen the workpiece, and the first direction, the second direction and the third direction are perpendicular to each other.

2. The clamping device according to claim 1, characterized in that: The clamping member comprises: A support body, the support body is arranged on a side of the linkage member away from the connecting body and is movably connected to the corresponding linkage member, and the through groove is provided in the support body; A flexible clamping body is connected to one end of the support body away from the linkage member, and the flexible clamping body is used for flexibly clamping the workpiece under the drive of the support body.

3. The clamping device according to claim 2, characterized in that: The support body comprises: A first supporting portion, movably connected to the corresponding linkage member, wherein the through slot is provided in the first supporting portion; A second supporting portion protrudes from a side wall of the first supporting portion along the first direction; A third supporting portion is protruded along the second direction on a side of the second supporting portion facing the flexible clamping body and is connected to the flexible clamping body.

4. The clamping device according to claim 1, characterized in that: The linkage comprises: The first linkage; A second linkage body arranged perpendicularly to the first linkage body; A rotating shaft, movably disposed along the first direction through one end of the first linkage body adjacent to the second linkage body and rotatably connected to the cylinder body; A first movable body, movably disposed in the connecting body along the first direction and movably connected to the first linkage body; and A second movable body is movably disposed in the clamping member along the second direction and is movably connected to the second linkage body.

5. The clamping device according to claim 4, characterized in that: The first linkage body and the second linkage body are respectively provided with a first hole and a second hole. The first hole is provided at one end of the first linkage body away from the second linkage body, and the second hole is provided at one end of the second linkage body away from the first linkage body. The first hole and the second hole are respectively loosely matched with the first movable body and the second movable body.

6. The clamping device according to claim 1, characterized in that: The connector comprises: A connecting portion, one end of which penetrates into the corresponding receiving groove and is connected to the piston body; The raised portion is convexly arranged at one end of the connecting portion away from the piston body and is movably connected to the two linkage members. The cross-sectional area of ​​the raised portion along the first direction is smaller than the cross-sectional area of ​​the connecting portion along the first direction.

7. The clamping device according to claim 1, characterized in that: The piston body comprises: A piston portion, disposed in the corresponding receiving groove and connected to the connecting body; The sealing part is sleeved on the piston part and abuts against the groove wall of the receiving groove in an airtight manner.

8. The clamping device according to claim 1, characterized in that: The cylinder body comprises: A main body, wherein the first air inlet groove, the second air inlet groove and the plurality of receiving grooves are all provided in the main body; A plurality of side panels are arranged at intervals along the first direction and are protruded from one end of the main body adjacent to the clamping member. A receiving groove is formed between two adjacent side panels. The plurality of receiving grooves are arranged in one-to-one correspondence with the plurality of storage grooves. The receiving grooves receive the corresponding linkage member, the corresponding clamping member and the corresponding limiting member.

9. The clamping device according to claim 8, characterized in that: The accommodating groove is loosely matched with the corresponding clamping member and the corresponding linkage member along the first direction.

10. The clamping device according to claim 8, characterized in that: The receiving groove includes a first groove and a second groove, the two ends of the second groove are connected with the first groove and the receiving groove respectively along the second direction, the cross-sectional area of ​​the first groove along the first direction is larger than the cross-sectional area of ​​the second groove along the first direction, and the piston body and the connecting body are respectively airtightly abutted against the groove wall of the first groove and the groove wall of the second groove.

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