A rotatable wood clamp assembly tooling fixture

By designing a rotatable wood clamp assembly fixture, and utilizing a rotary component and hydraulic system to achieve automated assembly of the wood clamp, the problems of low efficiency and safety hazards in manual assembly are solved, thereby improving assembly efficiency and accuracy.

CN224575520UActive Publication Date: 2026-07-31GUANGXI XUVOL AONSTRUCTION MASCH AQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGXI XUVOL AONSTRUCTION MASCH AQUIPMENT CO LTD
Filing Date
2025-08-21
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

The current manual assembly of wooden clamps is inefficient, labor-intensive, and poses safety hazards.

Method used

Design a rotatable wood clamping assembly fixture, including a rotatable component assembly, a five-way rotary center distributor and a support assembly, and control clamping and rotation through a hydraulic system to achieve automated assembly.

Benefits of technology

It improved assembly efficiency, reduced labor intensity, decreased safety risks, and enhanced assembly quality and precision.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This utility model provides a rotatable wood clamp assembly fixture, belonging to the field of fixture technology. It includes a rotary assembly, a five-way rotary center distributor, a support assembly, and a positioning assembly. The five-way rotary center distributor is mounted on the rotary assembly. The support assembly is connected to the rotary assembly via a rotary assembly. Base plates are respectively provided at both ends of the support assembly. An upper thin-film hydraulic cylinder and an upper clamping assembly are respectively provided on the upper surface of the base plate. The upper thin-film hydraulic cylinder is connected to the upper clamping assembly, and the two upper clamping assemblies are arranged opposite each other. A lower thin-film hydraulic cylinder and a lower clamping assembly are respectively provided on the lower surface of the base plate. The lower thin-film hydraulic cylinder is connected to the lower clamping assembly, and the two lower clamping assemblies are arranged opposite each other. Both ends of the positioning assembly are respectively connected to the lower clamping assemblies. Compared with manual assembly, the fixture provided by this utility model provides accurate positioning, improves assembly efficiency, and reduces labor intensity when assembling wood clamps.
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Description

Technical Field

[0001] This utility model relates to the field of tooling and fixture technology, and in particular to a rotatable tooling and fixture for assembling wooden objects. Background Technology

[0002] Log clamps are commonly used attachments for excavators. Currently, the mainstream assembly method is manual assembly, where assemblers use overhead cranes with appropriate lifting equipment to move and lift the log clamp components and assemble them using the corresponding tools.

[0003] Currently, the mainstream assembly method for log clamps is still manual assembly. This method has low investment costs and allows assemblers to work around the clamps, offering good flexibility. However, it also has drawbacks: manual assembly is inefficient and labor-intensive; when assembling larger log clamps, the weight of the parts poses safety hazards for assemblers using overhead cranes. Therefore, a rotatable log clamp assembly fixture is needed. Summary of the Invention

[0004] The purpose of this invention is to provide a rotatable log clamp assembly fixture to solve the technical problem of low efficiency in existing manual assembly. The fixture designed in this invention can effectively reduce the lifting and turning time during the log clamp assembly process, greatly improving assembly efficiency, reducing labor intensity, and minimizing potential risks for employees during assembly. It is suitable for the auxiliary assembly of log clamps on excavator attachments under 15T.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A rotatable wood clamping assembly fixture includes a rotary assembly, a five-way rotary center distributor, a support assembly, and a positioning assembly. The five-way rotary center distributor is mounted on the rotary assembly. The support assembly is connected to the rotary assembly via a rotary assembly. Base plates are mounted on both ends of the support assembly. An upper thin-film hydraulic cylinder and an upper clamping assembly are mounted on the upper surface of each base plate. The upper thin-film hydraulic cylinder is connected to the upper clamping assembly, and the two upper clamping assemblies are positioned opposite each other. A lower thin-film hydraulic cylinder and a lower clamping assembly are mounted on the lower surface of the base plate. The lower thin-film hydraulic cylinder is connected to the lower clamping assembly, and the two lower clamping assemblies are positioned opposite each other. Both ends of the positioning assembly are connected to the lower clamping assemblies.

[0006] Furthermore, the slewing assembly includes a slewing reducer, a base assembly, a slewing bearing, and a slewing assembly body. The slewing assembly body is disposed on the base assembly, the slewing reducer is disposed on the upper part of the slewing assembly body, the slewing bearing is disposed on one side of the middle part of the slewing assembly body, and the gear at the output end of the slewing reducer is meshed with the slewing bearing. Furthermore, a slewing reducer mounting slot and a slewing bearing mounting slot are respectively provided on one side of the slewing assembly body. The slewing reducer mounting slot is located above the slewing bearing mounting slot and is connected to the slewing bearing mounting slot. The slewing reducer is installed in the slewing reducer mounting slot, and the slewing bearing is installed in the slewing bearing mounting slot. The inner ring of the slewing bearing is connected to the slewing assembly body, and the outer ring of the slewing bearing is meshed with the gear at the output end of the slewing reducer. The rotating assembly is connected to the outer ring of the slewing bearing.

[0007] Furthermore, the five-way rotating center distributor passes through the slewing bearing, and a slewing joint bracket is fitted on the five-way rotating center distributor. The slewing joint bracket is connected to the slewing assembly body, and a rotating bracket is snapped onto one end of the five-way rotating center distributor. The rotating bracket is connected to the rotating assembly. Furthermore, a support assembly is connected to the outside of the rotating assembly, and the support assembly is connected to the bracket assembly, which is configured as a U-shaped structure.

[0008] Furthermore, the upper surface of the base plate is provided with two upper linear guide rails, and the two upper linear guide rails are respectively located on both sides of the upper thin oil cylinder. An upper slider is slidably connected to the upper linear guide rail, and the upper slider is connected to the upper clamping assembly. An upper limit block is provided between the upper linear guide rail and the upper thin oil cylinder.

[0009] Furthermore, the upper clamping assembly includes an upper positioning plate and an upper clamping plate. The two ends of the upper positioning plate are respectively connected to the upper slider, and the middle part of the upper positioning plate is connected to the telescopic end of the upper thin hydraulic cylinder. The upper clamping plate is disposed on the upper positioning plate, and a clamping pad is connected to the lower surface of the upper clamping plate. A clamping rubber pad is connected to the outer side of the clamping pad.

[0010] Furthermore, the lower surface of the base plate is provided with two lower linear guide rails, and the two lower linear guide rails are respectively located on both sides of the lower thin-type hydraulic cylinder. A lower slider is slidably connected to the lower linear guide rail, and the lower slider is connected to the lower clamping assembly.

[0011] Furthermore, the lower clamping assembly includes a lower positioning plate and a lower clamping plate. The two ends of the lower positioning plate are respectively connected to the lower slider. The telescopic end of the lower thin hydraulic cylinder passes through the bracket assembly and is connected to the middle of the lower positioning plate. The inner side of the bracket assembly is respectively provided with a lower limit block, and the lower limit block is located on one side of the lower linear guide rail. The lower clamping plate is located on the lower positioning plate. The two ends of the positioning assembly are respectively connected to the lower clamping plate. The positioning assembly and the lower clamping plate are configured as detachable devices.

[0012] This utility model, by adopting the above-mentioned technical solution, has the following beneficial effects: 1. The tooling fixtures provided in this utility model concentrate the assembly process, reduce the hoisting steps, and achieve a high degree of assembly integration. This effectively reduces the hoisting and flipping time during the assembly of wooden clamps, thereby greatly improving assembly efficiency.

[0013] 2. The tooling fixtures provided in this utility model for assembling wooden clamps offer more accurate positioning and ensure assembly quality compared to manual assembly.

[0014] 3. The tooling fixtures designed in this utility model are ingenious and compact in structure. They can be connected to an external small hydraulic pump station, occupy a small area, improve assembly efficiency, reduce the number of parts hoisting steps in the assembly process, and reduce the risks in the assembly process.

[0015] 4. The tooling fixture set in this utility model is used for the auxiliary assembly of excavator attachments and log clamps. It can meet the assembly of more than three types of log clamps. Compared with the current assembly method of log clamps, it improves the assembly efficiency, reduces labor intensity, and reduces the potential risks of employees in the assembly process. Attached Figure Description

[0016] Figure 1 This is one of the structural schematic diagrams of the tooling fixture of this utility model; Figure 2 This is the second structural schematic diagram of the tooling fixture of this utility model; Figure 3 This is an exploded view of the tooling fixture of this utility model.

[0017] In the attached diagram, 1-slewing reducer, 2-base assembly, 3-slewing component assembly, 4-slewing bearing, 5-slewing joint bracket, 6-five-way rotary center distributor, 7-rotating bracket, 8-rotating component, 9-support assembly, 10-bracket assembly, 11-base plate, 12-slewing component body, 121-slewing reducer mounting slot, 122-slewing bearing mounting slot, 13-upper clamping assembly, 131-upper positioning plate, 132-upper clamping plate 133-Clamping pad, 134-Clamping rubber pad, 14-Upper linear guide rail, 15-Upper thin oil cylinder, 16-Positioning assembly, 161-Positioning sleeve, 162-Positioning plate, 17-Lower clamping assembly, 171-Lower positioning plate, 172-Lower clamping plate, 173-Lower limit block, 18-Lower thin oil cylinder, 19-Upper slider, 20-Upper limit block, 21-Lower linear guide rail, 22-Lower slider, 23-First oil pipe, 24-Second oil pipe. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many details listed in the specification are merely to provide the reader with a thorough understanding of one or more aspects of this utility model, and these aspects can be achieved even without these specific details.

[0019] like Figure 1-3 As shown, a rotatable wood clamping assembly fixture includes a rotary assembly 3, a five-way rotary center distributor 6, a support assembly 10, and a positioning assembly 16. The five-way rotary center distributor 6 is mounted on the rotary assembly 3. The support assembly 10 is connected to the rotary assembly 3 via a rotary assembly 8. A through hole is provided in the middle of the rotary assembly 8, through which the five-way rotary center distributor 6 passes. Base plates 11 are respectively provided at both ends of the support assembly 10. The surface of the base plate 11 is respectively provided with upper thin-type hydraulic cylinders 15 and upper clamping assemblies 13. The upper thin-type hydraulic cylinders 15 are connected to the upper clamping assemblies 13, and the two upper clamping assemblies 13 are arranged opposite to each other. The lower surface of the base plate 11 is respectively provided with lower thin-type hydraulic cylinders 18 and lower clamping assemblies 17. The lower thin-type hydraulic cylinders 18 are connected to the lower clamping assemblies 17, and the two lower clamping assemblies 17 are arranged opposite to each other. The two ends of the positioning assembly 16 are respectively connected to the lower clamping assemblies 17. The positioning assembly 16 is used to position the slewing bearing of the wood clamp. In use, the two lower thin-type hydraulic cylinders 18 are stretched, driving the two lower clamping assemblies 17 to move inward. Then, the positioning assembly 16 is connected between the two lower clamping assemblies 17, and the slewing bearing of the wood clamp is placed on the positioning assembly 16. Then, the workpiece (horse head) of the wood clamp is installed. Then, the two upper thin-type hydraulic cylinders 15 are stretched, driving the two upper clamping assemblies 13 to move inward, so that the two upper clamping assemblies 13 clamp the workpiece, and the slewing assembly 3 drives it to rotate. The tooling fixtures designed in this invention are ingenious and compact in structure. They can be connected to an external small hydraulic pump station, occupying a small area, improving assembly efficiency, reducing the number of parts hoisting steps in the assembly process, increasing assembly efficiency, and reducing the risks in the assembly process.

[0020] like Figure 3As shown, the rotary assembly 3 includes a rotary reducer 1, a base assembly 2, a rotary bearing 4, and a rotary assembly body 12. The rotary assembly body 12 is mounted on the base assembly 2 and connected to the base assembly 2 by external bolts. The base assembly 2 is fixed to the ground or a workbench and serves to support and fix the rotary assembly 3. The rotary reducer 1 is located on the upper part of the rotary assembly body 12 and is connected to the rotary assembly body 12 by external bolts. The rotary bearing 4 is located on one side of the middle of the rotary assembly body 12, and the gear at the output end of the rotary reducer 1 meshes with the rotary bearing 4. In this invention, the rotation of the rotary reducer 1 drives the rotation of the rotary bearing 4.

[0021] In an embodiment of this utility model, a rotary reducer mounting groove 121 and a rotary bearing mounting groove 122 are respectively provided on one side of the rotary assembly body 12. The rotary reducer mounting groove 121 is located on the upper side of the rotary bearing mounting groove 122 and is connected to the rotary bearing mounting groove 122. The rotary reducer 1 is installed in the rotary reducer mounting groove 121 by external bolts. The rotary bearing 4 is installed in the rotary bearing mounting groove 122, and the inner ring of the rotary bearing 4 is connected to the rotary assembly body 12 by external bolts. The outer ring gear of the rotary bearing 4 meshes with the gear at the output end of the rotary reducer 1. The rotating assembly 8 is connected to the outer ring of the rotary bearing 4. The rotary reducer 1 drives the outer ring of the rotary bearing 4 to rotate, causing the rotating assembly 8 to rotate with the outer ring of the rotary bearing 4.

[0022] In this embodiment of the invention, the five-way rotating center distributor 6 passes through the slewing bearing 4. A slewing joint bracket 5 is fitted onto the five-way rotating center distributor 6. One end of the five-way rotating center distributor 6 is connected to the slewing joint bracket 5 by external bolts. The slewing joint bracket 5 is connected to the rotating assembly body 12 by external bolts. A rotating bracket 7 is snapped onto one end of the five-way rotating center distributor 6. A notch is provided at one end of the five-way rotating center distributor 6. A boss is provided on the inner side of the rotating bracket 7. The boss on the inner side of the rotating bracket 7 is snapped into the notch of the five-way rotating center distributor 6. The rotating bracket 7 is connected to the rotating assembly 8 by external bolts. A support assembly 9 is connected to the outer side of the rotating assembly 8. The support assembly 9 is connected to the bracket assembly 10. The bracket assembly 10 is configured with a U-shaped structure. The support assembly 9 includes upper and lower support frames. The bracket assembly 10 is connected between the upper and lower support frames by external bolts. Oil pipe through holes are also provided on the two support frames for fixing oil pipes.

[0023] like Figure 1As shown, the upper surface of the base plate 11 is provided with two upper linear guide rails 14, which are respectively located on both sides of the upper thin-type hydraulic cylinder 15. Upper sliders 19 are slidably connected to the upper linear guide rails 14, and the upper sliders 19 are connected to the upper clamping assembly 13. Upper limit blocks 20 are respectively provided between the upper linear guide rails 14 and the upper thin-type hydraulic cylinder 15 to limit the upper clamping assembly 13. In use, when the two upper thin-type hydraulic cylinders 15 are extended, they drive the two upper clamping assemblies 13 to move inwards, clamping the workpiece; when the two upper thin-type hydraulic cylinders 15 are retracted, they drive the two upper clamping assemblies 13 to move outwards, releasing the workpiece. The two upper thin-type hydraulic cylinders 15 are connected by two second oil pipes 24, which pass through oil pipe through holes on the support assembly 10 and are fixed. The second oil pipes 24 are connected to the five-way rotary center distributor 6 through a first oil pipe 23. In use, hydraulic oil is supplied from the pump station to the five-way rotary center distributor 6, and the hydraulic oil is diverted from the five-way rotary center distributor 6 to the upper thin-type cylinder 15 to control the extension and retraction of the upper thin-type cylinder 15.

[0024] In an embodiment of this utility model, the upper clamping assembly 13 includes an upper positioning plate 131 and an upper clamping plate 132. Both ends of the upper positioning plate 131 are connected to the upper slider 19, and the middle part of the upper positioning plate 131 is connected to the telescopic end of the upper thin hydraulic cylinder 15. The upper clamping plate 132 is disposed on the upper positioning plate 131, with one side of the upper clamping plate 132 extending beyond the upper positioning plate 131. A clamping pad 133 is connected to the lower surface of the upper clamping plate 132, and a clamping rubber pad 134 is connected to the outer side of the clamping pad 133. The clamping rubber pad 134 can be used to protect the workpiece and also to strengthen the clamping of the workpiece. The telescopic movement of the upper thin hydraulic cylinder 15 drives the upper positioning plate 131 and the upper clamping plate 132 to move, causing the upper slider 19 to move on the upper linear guide rail 14.

[0025] like Figure 1-2As shown, the lower surface of the base plate 11 is provided with two lower linear guide rails 21, which are respectively located on both sides of the lower thin-type hydraulic cylinder 18. A lower slider 22 is slidably connected to each lower linear guide rail 21, and the lower slider 22 is connected to the lower clamping assembly 17. The two lower thin-type hydraulic cylinders 18 are connected by two second oil pipes 24. The second oil pipes 24 pass through oil pipe through holes on the support assembly 10 and are fixed. The second oil pipes 24 are connected to the five-way rotating center distributor 6 through a first oil pipe 23. The extension and retraction of the lower thin-type hydraulic cylinder 18 causes the lower clamping assembly 17 to move, causing the lower slider 22 to slide on the lower linear guide rails 21. In use, hydraulic oil is supplied from the pump station to the five-way rotating center distributor 6, and then diverted from the five-way rotating center distributor 6 to the lower thin-type hydraulic cylinder 18 to control its extension and retraction. The lower clamping assembly 17 includes a lower positioning plate 171 and a lower clamping plate 172. The two ends of the lower positioning plate 171 are respectively connected to the lower slider 22. The telescopic end of the lower thin hydraulic cylinder 18 passes through the bracket assembly 10 and is connected to the middle of the lower positioning plate 171. The inner side of the bracket assembly 10 is respectively provided with a lower limit block 173, and the lower limit block 173 is located on one side of the lower linear guide rail 21. The lower limit block 173 is connected to the bracket assembly 10 and is used to limit the lower clamping assembly 17. The lower clamping plate 172 is located on the lower positioning plate 171 and extends out of the lower positioning plate 171. The two ends of the positioning assembly 16 are respectively connected to the lower clamping plate 172. The positioning assembly 16 includes a positioning sleeve 161, with positioning plates 162 connected to both sides of the positioning sleeve 161. One end of each positioning plate 162 is connected to a lower clamping plate 172, and the positioning plate 162 and the lower clamping plate 172 are detachable. During assembly, the lower thin-type hydraulic cylinder 18 is stretched, causing the lower positioning plate 171 and the lower clamping plate 172 to move inward, connecting the positioning plate 162 of the positioning assembly 16 to the lower clamping plate 172 via outer plate bolts.

[0026] Working principle In use, the two lower thin-type hydraulic cylinders 18 extend, and the two lower clamping components 17 move inward to the designated positions. The positioning plates 162 of the positioning component 16 are then connected to the lower clamping components 17 via external bolts. A crane is then used to place the slewing bearing of the wood clamp parts onto the positioning sleeve 161 of the positioning component 16. The crane is then used to place the horse head of the wood clamp assembly into the slewing bearing and adjust it into position. The two upper thin-type hydraulic cylinders 15 extend, and the two upper clamping components 13 move inward to clamp the horse head of the wood clamp, thus assembling the upper part of the wood clamp. After the upper part of the wood clamp is assembled, the slewing reducer 1 is started. The slewing reducer 1 drives the slewing bearing 4 to rotate, causing the five-way rotating center distributor 6 and the rotating component 8 to rotate, thereby driving the support component 10 and the positioning component 1. After rotating 180°, brake and remove positioning component 16. The two lower thin-type hydraulic cylinders 18 retract, driving the two lower clamping components 17 to move outward to the origin. Use a crane to transport the wood clamp bracket assembly to the slewing bearing of the wood clamp parts for assembly. Use a crane to transport the left and right clamping blades of the wood clamp to the wood clamp bracket assembly for assembly. After assembly, use a crane to clamp the wood and fix it. The two upper thin-type hydraulic cylinders 15 retract, driving the two upper clamping components 13 to move outward to the origin. Use a crane to lift the wood clamp off the assembly fixture. Start the rotary reducer 1. The rotary reducer 1 drives the slewing bearing 4 to rotate, causing the five-way rotary center distributor 6 and the rotary component 8 to rotate, thereby driving the bracket assembly 10 and positioning component 16 to rotate 180° and brake, returning to the original position, completing the entire wood clamp assembly process.

[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A rotatable wooden assembly fixture, characterized in that: The assembly includes a rotary assembly (3), a five-way rotary center distributor (6), a support assembly (10), and a positioning assembly (16). The five-way rotary center distributor (6) is mounted on the rotary assembly (3). The support assembly (10) is connected to the rotary assembly (3) via a rotating assembly (8). Base plates (11) are respectively mounted on both ends of the support assembly (10). Upper thin-type hydraulic cylinders (15) and upper... The clamping assembly (13) is connected to the upper thin-type hydraulic cylinder (15), and the two upper clamping assemblies (13) are arranged opposite to each other. The lower surface of the base plate (11) is respectively provided with a lower thin-type hydraulic cylinder (18) and a lower clamping assembly (17). The lower thin-type hydraulic cylinder (18) is connected to the lower clamping assembly (17), and the two lower clamping assemblies (17) are arranged opposite to each other. The two ends of the positioning assembly (16) are respectively connected to the lower clamping assembly (17).

2. A rotatable wood clamp assembly fixture according to claim 1, wherein: The slewing assembly (3) includes a slewing reducer (1), a base assembly (2), a slewing bearing (4), and a slewing assembly body (12). The slewing assembly body (12) is mounted on the base assembly (2). The slewing reducer (1) is mounted on the upper part of the slewing assembly body (12). The slewing bearing (4) is mounted on one side of the middle part of the slewing assembly body (12). The gear at the output end of the slewing reducer (1) meshes with the slewing bearing (4).

3. A rotatable wood clamp assembly fixture according to claim 2, wherein: The slewing assembly body (12) is provided with a slewing reducer mounting groove (121) and a slewing bearing mounting groove (122) on one side. The slewing reducer mounting groove (121) is located on the upper side of the slewing bearing mounting groove (122) and the slewing reducer mounting groove (121) is connected to the slewing bearing mounting groove (122). The slewing reducer (1) is located in the slewing reducer mounting groove (121). The slewing bearing (4) is located in the slewing bearing mounting groove (122). The inner ring of the slewing bearing (4) is connected to the slewing assembly body (12). The outer ring of the slewing bearing (4) is meshed with the gear at the output end of the slewing reducer (1). The rotating assembly (8) is connected to the outer ring of the slewing bearing (4).

4. The rotatable wooden clamp assembly fixture according to claim 2, characterized in that: The five-way rotating center splitter (6) is installed through the slewing bearing (4). A slewing joint bracket (5) is fitted on the five-way rotating center splitter (6). The slewing joint bracket (5) is connected to the slewing assembly body (12). A rotating bracket (7) is snapped onto one end of the five-way rotating center splitter (6). The rotating bracket (7) is connected to the rotating assembly (8).

5. A rotatable wood clamp assembly fixture as defined in claim 1, wherein: The rotating component (8) is connected to a support component (9) on its outer side. The support component (9) is connected to a bracket component (10), which is configured as a U-shaped structure.

6. A rotatable wood clamp assembly fixture according to claim 1, wherein: The upper surface of the base plate (11) is provided with two upper linear guide rails (14), and the two upper linear guide rails (14) are respectively provided on both sides of the upper thin cylinder (15). The upper linear guide rails (14) are slidably connected with upper sliders (19), the upper sliders (19) are connected to the upper clamping assembly (13), and upper limit blocks (20) are respectively provided between the upper linear guide rails (14) and the upper thin cylinder (15).

7. A rotatable wood clamp assembly fixture as defined in claim 6, wherein: The upper clamping assembly (13) includes an upper positioning plate (131) and an upper clamping plate (132). The two ends of the upper positioning plate (131) are respectively connected to the upper slider (19). The middle part of the upper positioning plate (131) is connected to the telescopic end of the upper thin cylinder (15). The upper clamping plate (132) is set on the upper positioning plate (131). A clamping pad (133) is connected to the lower surface of the upper clamping plate (132). A clamping rubber pad (134) is connected to the outer side of the clamping pad (133).

8. A rotatable wood clamp assembly fixture according to claim 1, wherein: The lower surface of the base plate (11) is provided with two lower linear guides (21), and the two lower linear guides (21) are respectively provided on both sides of the lower thin oil cylinder (18). A lower slider (22) is slidably connected on the lower linear guide (21), and the lower slider (22) is connected to the lower clamping assembly (17).

9. A rotatable wooden clamp assembly fixture according to claim 8, characterized in that: The lower clamping assembly (17) includes a lower positioning plate (171) and a lower clamping plate (172). The two ends of the lower positioning plate (171) are respectively connected to the lower slider (22). The telescopic end of the lower thin cylinder (18) passes through the bracket assembly (10) and is connected to the middle of the lower positioning plate (171). The inner side of the bracket assembly (10) is respectively provided with a lower limit block (173), and the lower limit block (173) is located on one side of the lower linear guide (21). The lower clamping plate (172) is located on the lower positioning plate (171). The two ends of the positioning assembly (16) are respectively connected to the lower clamping plate (172). The positioning assembly (16) and the lower clamping plate (172) are configured as detachable devices.