Matrix follow-up chuck device

Abstract

The utility model discloses a matrix type follow -up chuck device, including base, clamping subassembly and hydraulic drive cylinder, the clamping subassembly sets up on the base, this hydraulic drive cylinder drives clamping subassembly to open and close activity, the clamping subassembly includes main body, main drive shaft, a plurality of vice drive shafts, a plurality of parallel swing arms, a plurality of movement base claws, a plurality of dial swing arms and a plurality of jaws, through setting up a plurality of parallel swing arms, utilize parallel swing arm to and back swing and promote adjacent two vice drive shafts to alternate up and down activity, in the process of clamping work piece, because of the "seesaw" effect of parallel swing arm, through the control main drive shaft downward activity, can make a plurality of vice drive shafts follow -up and independent adaptive downward activity to the stroke of a plurality of movement base claws is adaptively controlled, guarantees each jaw all with the side surface of work piece and is adhered to clamping, thereby realizes accurately to work piece and carries out the center clamping, clamps firm and reliable, brings the convenience to the subsequent working operation of work piece.

Description

Technical Field

[0001] This utility model relates to the field of tooling and fixtures, and in particular to a matrix-type follow-up chuck device. Background Technology

[0002] A chuck is a machine tool accessory whose main function is to clamp the workpiece, ensuring its stable and accurate positioning and rotation during machining. Chucks are widely used in various machine tools such as lathes, milling machines, and grinding machines, and are an important tool for achieving automated workpiece machining.

[0003] A chuck assembly typically consists of a chuck body, jaws, a transmission mechanism, and a locking mechanism. The chuck body is the main component, housing multiple jaws for gripping workpieces. The transmission mechanism drives the jaws to move, clamping and releasing the workpiece. The locking mechanism maintains chuck stability during machining. The working principle of a chuck assembly relies primarily on its transmission and locking mechanisms. When a workpiece needs to be clamped, the transmission mechanism moves the jaws closer to the center of the chuck body, clamping the workpiece at its center position. During machining, the locking mechanism maintains chuck stability, preventing workpiece loosening or displacement due to vibration or cutting forces. After machining, the transmission mechanism again moves the jaws to release the workpiece, facilitating the clamping and machining of the next workpiece.

[0004] However, in existing technologies, the transmission mechanism drives multiple jaws to move close to the various sides of the workpiece at the same speed and stroke. When the various sides of the workpiece have manufacturing errors or tolerances in length and width, some jaws will not be able to fit and clamp the corresponding sides of the workpiece, thus failing to accurately center and clamp the workpiece, causing inconvenience to subsequent processing operations. Therefore, it is necessary to improve the current chuck device. Utility Model Content

[0005] In view of this, the present invention addresses the deficiencies of the existing technology and its main objective is to provide a matrix-type follow-up chuck device, which can effectively solve the problem that existing chuck devices cannot accurately center and clamp the workpiece.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A matrix-type follower chuck device includes a base, a clamping assembly, and a hydraulic drive cylinder. The clamping assembly is mounted on the base, and the hydraulic drive cylinder is mounted on the base and drives the clamping assembly to open and close. The clamping assembly includes a main body, a main drive shaft, multiple auxiliary drive shafts, multiple parallel swing arms, multiple motion base jaws, multiple actuating swing arms, and multiple jaws. The main body is fixed to the base. The main drive shaft is movably mounted within the main body and is driven by the hydraulic drive cylinder to move up and down. The multiple auxiliary drive shafts are arranged at intervals around the center of the main drive shaft, and each auxiliary drive shaft is movably mounted up and down relative to the main drive shaft. The multiple parallel swing arms are hinged to the main drive shaft and move up and down with the main drive shaft. The two ends of each parallel swing arm... Each parallel swing arm is hinged to two adjacent auxiliary drive shafts. The back-and-forth swing of the parallel swing arms causes the two adjacent auxiliary drive shafts to move up and down alternately. Multiple parallel swing arms hinge multiple auxiliary drive shafts to form a closed-loop transmission assembly. Multiple motion base claws are arranged in a circumferential interval around the center of the main body. Each motion base claw can be set to slide back and forth horizontally along the radial direction of the main body. Multiple actuating swing arms are installed in the main body and can swing back and forth. Each actuating swing arm is hinged to an auxiliary drive shaft and driven by the auxiliary drive shaft to swing back and forth. Each actuating swing arm is hinged to multiple motion base claws and drives multiple motion base claws to slide back and forth horizontally. Multiple jaws are arranged in a matrix and fixed to the corresponding motion base claws. A clamping space for clamping workpieces is formed between the multiple jaws.

[0008] As a preferred embodiment, the outer peripheral side of the main drive shaft is provided with a plurality of guide grooves, which are evenly spaced in a circumference. The plurality of auxiliary drive shafts are respectively embedded in the plurality of guide grooves and move back and forth along the corresponding guide grooves. The main drive shaft is provided with a plurality of connecting grooves, which are horizontally arranged and evenly spaced in a circumference around the center of the main drive shaft. The plurality of connecting grooves connect two adjacent guide grooves respectively. The plurality of parallel swing arms are respectively located in the corresponding connecting grooves, and the two ends of each parallel swing arm extend into two adjacent guide grooves respectively.

[0009] As a preferred embodiment, the outer peripheral side of the main drive shaft is provided with a plurality of first shaft holes, which extend radially along the main drive shaft and pass through the corresponding connecting grooves respectively. A first shaft body is installed in each first shaft hole. A second shaft hole is provided in the middle of the parallel swing arm, and the first shaft body passes through the second shaft hole. The parallel swing arm rotates around the center of the first shaft body.

[0010] As a preferred embodiment, a central hole is formed through the upper and lower surfaces of the main drive shaft, and the plurality of first shaft holes are all connected to the central hole. A pull-down stud passes through the central hole from top to bottom and is fixedly connected to the piston rod of the hydraulic drive cylinder.

[0011] As a preferred embodiment, the outer surface of the auxiliary drive shaft is recessed with a first hinge groove, and both ends of the parallel swing arm have a first hinge portion, which is hinged in the corresponding first hinge groove.

[0012] As a preferred embodiment, the main body includes a base and a top cover. The upper and lower end faces of the base form a central chamber and multiple mounting chambers. The multiple mounting chambers are located around the central chamber and are all connected to the central chamber. The main drive shaft and multiple auxiliary drive shafts are located in the central chamber. The multiple actuating swing arms are located in their respective mounting chambers. The top cover is fixed to the base and has multiple sliding grooves. The multiple motion base claws are located in their respective sliding grooves and slide back and forth along their respective sliding grooves.

[0013] As a preferred embodiment, the two opposite inner walls of the mounting chamber are recessed with slots, and each slot is fitted with a mounting block. The mounting block has a third shaft hole, in which a second shaft is installed. The actuating arm has a fourth shaft hole, in which the second shaft passes. The actuating arm swings back and forth around the center of the second shaft.

[0014] As a preferred embodiment, the outer surface of the auxiliary drive shaft is recessed with a second hinge groove, the bottom surface of the plurality of motion base claws is provided with a third hinge groove, and each actuating swing arm is provided with a second hinge part and a third hinge part. The second hinge part is hinged in the second hinge groove, and the third hinge part is hinged in the third hinge groove.

[0015] As a preferred embodiment, the outer end face of the motion base claw is provided with a mounting hole, which communicates with the third hinge groove, and an oil injection nozzle is installed in the mounting hole.

[0016] As a preferred embodiment, the clamping components are arranged in multiple rows, and each clamping component is equipped with a hydraulic drive cylinder.

[0017] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0018] By setting up multiple parallel swing arms, the back-and-forth swing of the parallel swing arms causes the two adjacent drive shafts to move up and down alternately. During the workpiece clamping process, due to the "seesaw" effect of the parallel swing arms, by controlling the downward movement of the main drive shaft, multiple drive shafts can move downward independently and adaptively, so as to adaptively control the stroke of multiple motion base jaws, ensuring that each jaw is in close contact with the side of the workpiece, thereby achieving precise centered clamping of the workpiece, and the clamping is firm and reliable, bringing convenience to the subsequent processing of the workpiece.

[0019] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0020] Figure 1 This is a perspective view of a preferred embodiment of the present utility model;

[0021] Figure 2 This is a perspective view of another preferred embodiment of the present invention;

[0022] Figure 3 This is a three-dimensional schematic diagram of the clamping component assembly in a preferred embodiment of the present invention;

[0023] Figure 4 This is a three-dimensional assembly schematic diagram of the clamping component from another angle in a preferred embodiment of this utility model;

[0024] Figure 5 This is an exploded view of the clamping component in a preferred embodiment of the present invention;

[0025] Figure 6 This is an exploded view of the clamping component from another angle in a preferred embodiment of the present invention;

[0026] Figure 7 This is a cross-sectional schematic diagram of a preferred embodiment of the present invention;

[0027] Figure 8 This is another cross-sectional schematic diagram of a preferred embodiment of the present invention.

[0028] Explanation of reference numerals in the attached diagram:

[0029] 10. Base; 11. Receiving slot

[0030] 20. Clamping assembly 21. Main body

[0031] 211. Base; 212. Top cover

[0032] 213, Mounting block 2131, Third shaft hole

[0033] 214. Second shaft body; 215. Positioning post

[0034] 216. Fixing bolts; 22. Main drive shaft

[0035] 221. Guide groove; 222. Connecting groove

[0036] 223. First shaft hole; 224. First shaft body

[0037] 225, center hole 23, auxiliary drive shaft

[0038] 231. First hinge slot; 232. Second hinge slot

[0039] 24. Parallel swing arm 241. First hinge part

[0040] 242, Second shaft hole 25, Motion base claw

[0041] 251. Third hinge groove; 252. Mounting hole

[0042] 253. Oil filler nozzle; 26. Moving the swing arm.

[0043] 261. Fourth shaft hole; 262. Second hinge part

[0044] 263. Third hinge part; 27. Jaws

[0045] 271, concave position 201, clamping space

[0046] 202. Central chamber; 203. Installation chamber

[0047] 204. Card slot; 205. Slide groove

[0048] 30. Hydraulic drive cylinder; 31. Piston rod

[0049] 32. Pull-down stud; 40. Workpiece. Detailed Implementation

[0050] Please refer to Figures 1 to 8 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, including a base 10, a clamping assembly 20, and a hydraulic drive cylinder 30.

[0051] The base 10 is a metal body, and the base 10 has a receiving groove 11 inside.

[0052] The clamping assembly 20 is disposed on the base 10. Specifically, the clamping assembly 20 includes a main body 21, a main drive shaft 22, multiple auxiliary drive shafts 23, multiple parallel swing arms 24, multiple motion base jaws 25, multiple actuating swing arms 26, and multiple jaws 27. The main body 21 is fixed to the base 10. The main drive shaft 22 is movably disposed within the main body 21. The multiple auxiliary drive shafts 23 are arranged at intervals around the center of the main drive shaft 22, and each auxiliary drive shaft 23 is movably disposed relative to the main drive shaft 22. The multiple parallel swing arms 24 are all hinged to the main drive shaft 22 and move back and forth with the main drive shaft 22. The two ends of each parallel swing arm 24 are respectively hinged to two adjacent auxiliary drive shafts 23. The parallel swing arms 24 swing back and forth, causing the adjacent auxiliary drive shafts 23 to move back and forth. The drive shaft 23 moves up and down alternately, and multiple parallel swing arms 24 hinge multiple auxiliary drive shafts 23 to form a closed-loop transmission assembly; the multiple motion base claws 25 are arranged in a circumferential interval around the center of the main body 21, and each motion base claw 25 can be set to slide back and forth horizontally along the radial direction of the main body 21; the multiple actuating swing arms 26 are installed in the main body 21 and can swing back and forth, and each actuating swing arm 26 is hinged to the auxiliary drive shaft 23 and driven by the auxiliary drive shaft 23 to swing back and forth, and each actuating swing arm 26 is hinged to the multiple motion base claws 25 and drives the multiple motion base claws 25 to slide back and forth horizontally; the multiple jaws 27 are arranged in a matrix and fixed on the corresponding motion base claws 25, and a clamping space 201 for clamping the workpiece 40 is formed between the multiple jaws 27.

[0053] In this embodiment, the main body 21 includes a base 211 and a top cover 212. The upper and lower end faces of the base 211 form a central chamber 202 and multiple mounting chambers 203. These mounting chambers 203 are located around the central chamber 202 and communicate with it. The mounting chambers 203 are four in number, evenly spaced in a circle around the center of the central chamber 202, and are not limited to one type. Two opposite inner sidewalls of each mounting chamber 203 are recessed with slots 204. Each slot 204 contains a mounting block 213, which has a third shaft hole 2131 in which a second shaft 214 is installed. The top cover 212 is fixed to the base 211 and has multiple sliding grooves 205, which are not limited to four. Furthermore, the base 211 and the top cover 212 are positioned and fixed together with the base 10 by positioning pins 215 and fixing bolts 216.

[0054] The main drive shaft 22 is located in the central chamber 202. The outer peripheral side of the main drive shaft 22 is provided with a plurality of guide grooves 221. The plurality of guide grooves 221 are arranged in a circumferentially evenly spaced manner. The main drive shaft 22 is provided with a plurality of connecting grooves 222. The plurality of connecting grooves 222 are arranged horizontally and are arranged in a circumferentially evenly around the center of the main drive shaft 22. The plurality of connecting grooves 222 respectively connect two adjacent guide grooves 221. The outer peripheral side of the main drive shaft 22 is provided with a plurality of first shaft holes 223. The plurality of first shaft holes 223 extend radially along the main drive shaft 22 and pass through the corresponding connecting grooves 222. A first shaft body 224 is installed in each first shaft hole 223. The upper and lower surfaces of the center of the main drive shaft 22 are formed with a central hole 225. The plurality of first shaft holes 223 are all connected to the central hole 225. In this embodiment, the main drive shaft 22 is cylindrical in shape, and there are four guide grooves 221. Correspondingly, there are four connecting grooves 222 and four first shaft holes 223, which are not limited to this.

[0055] The plurality of auxiliary drive shafts 23 are located in the central cavity 202. Each auxiliary drive shaft 23 is embedded in a plurality of guide grooves 221 and moves back and forth along the corresponding guide grooves 221. Each auxiliary drive shaft 23 has a first hinge groove 231 recessed on its outer surface, and also a second hinge groove 232 recessed on its outer surface. In this embodiment, the auxiliary drive shaft 23 is cylindrical in shape.

[0056] The plurality of parallel swing arms 24 are respectively located in corresponding connecting grooves 222, and the two ends of each parallel swing arm 24 extend into two adjacent guide grooves 221. Furthermore, each end of the parallel swing arm 24 has a first hinge portion 241, which is hinged into a corresponding first hinge groove 231. Additionally, a second shaft hole 242 is formed in the middle of the parallel swing arm 24, and the first shaft body 224 passes through the second shaft hole 242, allowing the parallel swing arm 24 to rotate around the center of the first shaft body 224.

[0057] The plurality of moving base claws 25 are respectively located in corresponding sliding grooves 205 and slide back and forth along the corresponding sliding grooves 205. The bottom surface of each of the plurality of moving base claws 25 has a third hinge groove 251. In addition, the outer end face of the moving base claw 25 is provided with a mounting hole 252, which communicates with the third hinge groove 251. An oil injection nozzle 253 is installed in the mounting hole 252 to inject lubricating oil into the third hinge groove 251, thereby increasing the lubrication of the mechanical connection, reducing friction, and ensuring smooth operation without jamming.

[0058] The multiple actuating arms 26 are located in corresponding mounting chambers 203. Each actuating arm 26 has a fourth shaft hole 261, and the second shaft 214 passes through the fourth shaft hole 261. The actuating arm 26 swings back and forth around the center of the second shaft 214. Furthermore, each actuating arm 26 has a second hinge portion 262 and a third hinge portion 263. The second hinge portion 262 is hinged in the second hinge groove 232, and the third hinge portion 263 is hinged in the third hinge groove 251.

[0059] There are four jaws 27, each with a 90° fan-shaped outer contour. The four jaws 27 form a circular structure. Each jaw 27 has a recess 271 on its surface, also in a 90° fan-shaped structure. The recesses 271 on the four jaws combine to form the aforementioned clamping space 201, which has a circular outer contour to clamp a circular workpiece 40. The jaws 27 can be adjusted in position and fixed to the moving base jaw 25 using screws or other fasteners, or they can be integrated with the moving base jaw 25.

[0060] The hydraulic drive cylinder 30 is mounted on the base 10 and drives the clamping assembly 20 to open and close. Specifically, the main drive shaft 22 is driven by the hydraulic drive cylinder 30 to move up and down. Furthermore, the hydraulic drive cylinder 30 is fixed in the receiving groove 11. The hydraulic drive cylinder 30 has a piston rod 31, and a pull-down stud 32 passes through the central hole 225 from top to bottom and is fixedly connected to the piston rod 31 of the hydraulic drive cylinder 30.

[0061] In addition, there are multiple clamping assemblies 20 arranged side by side, and each clamping assembly 20 is provided with a hydraulic drive cylinder 30 so as to clamp and fix multiple workpieces 40 at the same time. The number of clamping assemblies 20 and hydraulic drive cylinders 30 is unlimited.

[0062] The working principle of this embodiment is described in detail below:

[0063] In its initial state, the piston rod 31 is at its upper limit position, and the multiple jaws 27 are all far from the center of the clamping space 201. First, the workpiece 40 is placed in the clamping space 201 and positioned in the center. Then, the hydraulic drive cylinder 30 is activated, causing the piston rod 31 to move downward. Next, the piston rod 31 drives the main drive shaft 22 to move downward. Then, the main drive shaft 22 drives multiple auxiliary drive shafts 23 to move downward through multiple parallel swing arms 24. Due to the "seesaw" effect of the parallel swing arms 24, the multiple auxiliary drive shafts 23 can move downward with the movement of the parallel swing arms 24. The multiple auxiliary drive shafts 23 move downwards independently and adaptively, causing multiple actuating arms 26 to swing forward simultaneously. This causes the third hinge portions 263 of the actuating arms 26 to flip downwards. Then, the downward flipping of the third hinge portions 263 causes multiple moving base claws 25 to move synchronously towards the center of the main body 21. The multiple jaws 27 move towards the center of the clamping space 201 along with the moving base claws 25, ensuring that each jaw 27 is in contact with the corresponding outer surface of the workpiece 40, thereby clamping and fixing the workpiece 40 in the clamping space 201. At this point, the workpiece 40 can be machined.

[0064] After the workpiece 40 is processed, the hydraulic drive cylinder 30 is activated, which drives the piston rod 31 to move upward. Then, the piston rod 31 drives the main drive shaft 22 to move upward. The main drive shaft 22 then drives multiple auxiliary drive shafts 23 to move upward through multiple parallel swing arms 24. Next, the multiple auxiliary drive shafts 23 drive multiple actuating swing arms 26 to swing in opposite directions simultaneously, causing the third hinge portion 263 of the multiple actuating swing arms 26 to flip upward. Then, the upward flipping of the third hinge portion 263 causes multiple moving base jaws 25 to move synchronously away from the center of the main body 21. The multiple jaws 27 move away from the center of the clamping space 201 along with the movement of the multiple moving base jaws 25, thereby releasing the workpiece 40. At this time, the workpiece 40 can be taken out of the clamping space 201.

[0065] The key design feature of this invention is that by setting up multiple parallel swing arms, the back-and-forth swing of the parallel swing arms causes the adjacent two auxiliary drive shafts to move up and down alternately. During the workpiece clamping process, due to the "seesaw" effect of the parallel swing arms, by controlling the downward movement of the main drive shaft, multiple auxiliary drive shafts can move downward independently and adaptively, so as to adaptively control the stroke of multiple motion base jaws, ensuring that each jaw is in close contact with the side of the workpiece, thereby achieving precise centered clamping of the workpiece, with firm and reliable clamping, bringing convenience to the subsequent processing of the workpiece.

[0066] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A matrix-type follower chuck device, comprising a base, a clamping assembly, and a hydraulic drive cylinder; the clamping assembly is disposed on the base, and the hydraulic drive cylinder is disposed on the base and drives the clamping assembly to open and close; characterized in that: The clamping assembly includes a main body, a main drive shaft, multiple auxiliary drive shafts, multiple parallel swing arms, multiple motion base claws, multiple actuating swing arms, and multiple jaws. The main body is fixed to a base. The main drive shaft is movably mounted within the main body and is driven by a hydraulic cylinder. The multiple auxiliary drive shafts are arranged at intervals around the center of the main drive shaft, and each auxiliary drive shaft is movably mounted vertically relative to the main drive shaft. The multiple parallel swing arms are hinged to the main drive shaft and move up and down with it. Each parallel swing arm has two ends hinged to two adjacent auxiliary drive shafts. The swinging of the parallel swing arms causes the adjacent auxiliary drive shafts to move back and forth. The moving shaft moves up and down alternately, and multiple parallel swing arms hinge multiple auxiliary drive shafts to form a closed-loop transmission assembly; the multiple motion base claws are arranged in a circumferential interval around the center of the main body, and each motion base claw can be set to slide back and forth horizontally along the radial direction of the main body; the multiple actuating swing arms are installed in the main body and can swing back and forth up and down. The multiple actuating swing arms are all hinged to the auxiliary drive shaft and driven by the auxiliary drive shaft to swing back and forth up and down. The multiple actuating swing arms are respectively hinged to the multiple motion base claws and drive the multiple motion base claws to slide back and forth horizontally; the multiple jaws are arranged in a matrix and fixed on the corresponding motion base claws, and a clamping space for clamping workpieces is formed between the multiple jaws.

2. The matrix-type follower chuck device according to claim 1, characterized in that: The outer peripheral side of the main drive shaft is provided with multiple guide grooves, which are evenly spaced in a circle. The multiple auxiliary drive shafts are respectively embedded in the multiple guide grooves and move back and forth along the corresponding guide grooves. The main drive shaft is provided with multiple connecting grooves, which are horizontally arranged and evenly spaced in a circle around the center of the main drive shaft. The multiple connecting grooves connect two adjacent guide grooves. The multiple parallel swing arms are respectively located in the corresponding connecting grooves, and the two ends of each parallel swing arm extend into two adjacent guide grooves.

3. The matrix-type follower chuck device according to claim 2, characterized in that: The outer peripheral side of the main drive shaft is provided with a plurality of first shaft holes. The plurality of first shaft holes extend radially along the main drive shaft and pass through the corresponding connecting grooves respectively. A first shaft body is installed in each first shaft hole. A second shaft hole is provided in the middle of the parallel swing arm. The first shaft body passes through the second shaft hole. The parallel swing arm rotates around the center of the first shaft body.

4. The matrix-type follower chuck device according to claim 3, characterized in that: The main drive shaft has a central hole formed through its upper and lower surfaces. The plurality of first shaft holes are all connected to the central hole. A pull-down stud passes through the central hole from top to bottom and is fixedly connected to the piston rod of the hydraulic drive cylinder.

5. The matrix-type follower chuck device according to claim 2, characterized in that: The outer surface of the auxiliary drive shaft is recessed with a first hinge groove, and both ends of the parallel swing arm have a first hinge portion, which is hinged in the corresponding first hinge groove.

6. The matrix-type follower chuck device according to claim 2, characterized in that: The main body includes a base and a top cover. The upper and lower end faces of the base form a central chamber and multiple mounting chambers. The multiple mounting chambers are located around the central chamber and are all connected to the central chamber. The main drive shaft and multiple auxiliary drive shafts are located in the central chamber. The multiple toggle arms are located in their respective mounting chambers. The top cover is fixed to the base and has multiple sliding grooves. The multiple motion base claws are located in their respective sliding grooves and slide back and forth along their respective sliding grooves.

7. The matrix-type follower chuck device according to claim 6, characterized in that: The two opposite inner walls of the mounting chamber are recessed with slots, and each slot is fitted with a mounting block. The mounting block has a third shaft hole, in which a second shaft is installed. The actuating arm has a fourth shaft hole, in which the second shaft passes. The actuating arm swings back and forth around the center of the second shaft.

8. The matrix-type follower chuck device according to claim 1, characterized in that: The outer side of the auxiliary drive shaft is recessed with a second hinge groove, and the bottom surface of the plurality of motion base claws is provided with a third hinge groove. Each actuating swing arm is provided with a second hinge part and a third hinge part. The second hinge part is hinged in the second hinge groove, and the third hinge part is hinged in the third hinge groove.

9. The matrix-type follower chuck device according to claim 8, characterized in that: The outer end face of the motion base claw is provided with a mounting hole, which is connected to the third hinge groove, and an oil injection nozzle is installed in the mounting hole.

10. The matrix-type follower chuck device according to claim 1, characterized in that: The clamping components are arranged in multiple rows, and each clamping component is equipped with a hydraulic drive cylinder.

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