Clamping device capable of automatically adapting to diameter change of tea stalk bamboos
By using a linear drive mechanism and a symmetrical reverse transmission mechanism, the automatic adaptation of the tea stalk and bamboo clamps is achieved, solving the problems of inconsistent clamping force and high cost, improving processing accuracy and efficiency, and making it suitable for automated production lines.
Patent Information
- Application Number
- CN202511893373.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-16
- Publication Date
- 2026-02-27
AI Technical Summary
Existing tea stalk and bamboo clamps cannot automatically adapt to changes in diameter, resulting in inconsistent clamping force and low efficiency. Furthermore, existing adaptive clamps are complex in structure and expensive, making them difficult to widely apply in automated production.
It adopts a linear drive mechanism, an active clamping mechanism, a driven clamping mechanism, and a symmetrical reverse transmission mechanism. The symmetrical reverse transmission mechanism converts the linear motion into the opposite or opposite motion of the active clamping mechanism and the driven clamping mechanism, so as to automatically adapt to the change of the diameter of the tea stalk bamboo. The guide rod cylinder provides a constant output force to ensure that the clamping force is constant.
It achieves fully automatic adaptive clamping of tea stalk and bamboo workpieces with constant clamping force, which improves processing accuracy and finished product yield, reduces manufacturing costs and device size, and is suitable for automated production lines.
Smart Images
Figure CN121572208A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of bamboo processing, in particular to a clamping device capable of automatically adapting to the diameter change of tea culm bamboo. BACKGROUND
[0002] When tea culm bamboo is mechanically processed, it needs to be positioned and clamped. As a kind of naturally grown biomass material, the stem of tea culm bamboo generally has natural taper, which causes the diameter of the workpiece along its length direction to be not constant but continuously change within a certain range, thus putting forward very high self-adaptive requirements for the clamp in the processing process. The traditional clamp faces severe challenges in actual application, and its limitations are particularly prominent: 1. Manual adjustment type clamp: the operator needs to manually and frequently adjust the opening degree or clamping force of the clamping jaw according to the diameter of tea culm bamboo at different positions. This way is extremely inefficient and completely unable to adapt to the automatic production rhythm; at the same time, the consistency of clamping force completely depends on the experience of the operator, and in such a large diameter change range, it is easy to cause clamping to be too loose or too tight.
[0003] 2. Conflict between stroke and cost of traditional cylinder driven clamp: adopting pneumatic driving is a common means to realize automatic clamping, but the traditional cylinder direct driving type clamp scheme directly limits the adaptive range of the clamp to the piston stroke of the cylinder. In order to clamp the tea culm bamboo workpiece with large diameter change range, the cylinder must have very long stroke, which leads to large cylinder volume, high cost, slow response speed, and difficulty in layout in the work station with limited installation space; if a small stroke cylinder is used, the adaptive range of the clamp will be very limited, and the tea culm bamboo workpiece with large and small diameters cannot be considered together. In the traditional scheme, the adaptive range of the clamp and the size and cost of the cylinder constitute a difficult contradiction to reconcile.
[0004] 3. Limitations of practicality and economy of complex self-adaptive clamp: there are also some self-adaptive clamps on the market that use connecting rods, inclined surfaces or servo motors for driving. However, in order to cover a large range of diameter change, these schemes usually result in extremely complex mechanical structure and dramatic increase in manufacturing cost. In particular, the servo motor driving scheme also needs to be connected with a complex sensing and control system to adjust the clamping force and position in real time. Although it is powerful, its reliability, maintainability and economy are limited in conventional industrial applications. For many scenes that only require reliable and constant clamping force, the cost performance is not high.
[0005] In summary, the prior art lacks a clamping device with relatively simple structure, low cost, without the need for complex electrical control system, but can use the conventional stroke cylinder to realize the automatic adaptation and constant clamping of tea culm bamboo with a large range of diameter change (such as 10mm to 80mm). This has become a significant bottleneck restricting the flexibility and automation efficiency of the production line. Therefore, it is urgent to provide a clamping device that can automatically adapt to the diameter change of tea culm bamboo to solve the above technical problems. SUMMARY
[0006] The purpose of the present application is to provide a clamping device that can automatically adapt to the diameter change of tea culm bamboo to solve the above technical problems.
[0007] To achieve the above purpose, the present application provides the following technical solutions: A clamping device that can automatically adapt to the diameter change of tea culm bamboo, comprising a rack, a linear drive mechanism, a driving clamping mechanism, a driven clamping mechanism and a symmetrical reverse transmission mechanism; The linear drive mechanism is fixedly installed on the rack, the driving clamping mechanism is connected with the output end of the linear drive mechanism, the driven clamping mechanism is oppositely arranged with the driving clamping mechanism, and together they form a space for accommodating and clamping tea culm bamboo workpieces, the symmetrical reverse transmission mechanism comprises a mounting plate, a rotary transmission member, a first transmission member and a second transmission member, the mounting plate is fixedly installed on the rack, the rotary transmission member is rotatably installed on the mounting plate, the first transmission member and the second transmission member are symmetrically and parallelly arranged at both ends of the rotary transmission member with the rotation center of the rotary transmission member as the axis of symmetry, and are respectively engaged with the rotary transmission member, the first transmission member is slidably installed on a first sliding rail through a first sliding block, the second transmission member is slidably installed on a second sliding rail through a second sliding block, and the first sliding rail and the second sliding rail are both fixedly installed on the mounting plate; the first transmission member is fixedly connected with the driving clamping mechanism, the second transmission member is fixedly connected with the driven clamping mechanism, and when working, the linear drive mechanism drives the driving clamping mechanism and the first transmission member to move linearly along the first sliding rail, drives the rotary transmission member to rotate, and further drives the second transmission member and the driven clamping mechanism to move synchronously in the opposite direction of the driving clamping mechanism, realizing the clamping and loosening of tea culm bamboo workpieces.
[0008] As a preferred technical solution of the present application, the linear drive mechanism is a guide rod cylinder, the guide rod of the guide rod cylinder is connected with the driving clamping mechanism, and is used to provide a constant output force to the driving clamping mechanism.
[0009] As a preferred technical scheme of the present application, the driving clamping mechanism comprises a first V-shaped block, the driven clamping mechanism comprises a body and two second V-shaped blocks, the two second V-shaped blocks are fixedly installed in parallel and at intervals on the same side of the body, the second V-shaped blocks are arranged opposite to the V-shaped openings of the first V-shaped block, and the body is fixedly connected with the second transmission member.
[0010] As a preferred technical scheme of the present application, the first transmission member and the second transmission member are both racks, and the rotary transmission member is a gear, and the racks are arranged symmetrically with the rotation center of the gear as the origin and are engaged with the gear.
[0011] As a preferred technical scheme of the present application, the symmetric reverse transmission mechanism comprises a closed-loop transmission belt and the rotary transmission member, the rotary transmission member comprises two transmission wheels arranged in parallel, the transmission wheels are rotatably installed on the mounting plate, the closed-loop transmission belt is looped and tensioned on the two transmission wheels to form a path comprising a pair of parallel transmission sections, a first parallel transmission section and a second parallel transmission section are provided, the first transmission member is the first parallel transmission section, the second transmission member is the second parallel transmission section, the driving clamping mechanism is fixedly connected with the first parallel transmission section of the closed-loop transmission belt, the driven clamping mechanism is fixedly connected with the second parallel transmission section of the closed-loop transmission belt, and the second parallel transmission section is parallel to the extension direction of the first parallel transmission section and opposite in movement direction.
[0012] As a preferred technical scheme of the present application, the mounting plate is provided with a pair of oppositely arranged bearing mounting portions, each bearing mounting portion is provided with a bearing, and the rotary transmission member is rotatably installed on the mounting plate through mounting shafts supported in the two bearings at two ends.
[0013] As a preferred technical scheme of the present application, a position detection sensor is further included for detecting whether the driving clamping mechanism and the driven clamping mechanism reach a preset clamping position or a loosening position.
[0014] As a preferred technical scheme of the present application, the rack is provided with mechanical limit blocks for limiting the maximum stroke of the driving clamping mechanism and the driven clamping mechanism.
[0015] A processing production line comprises any of the clamping devices capable of automatically adapting to the diameter change of tea culm bamboo.
[0016] In summary, compared with the prior art, the present application has the following beneficial effects: The clamping device of this invention, capable of automatically adapting to changes in the diameter of tea stalk bamboo, achieves fully automatic self-adaptation. When tea stalk bamboo workpieces of different diameters are placed, the device automatically adjusts the opening of the active and driven clamping mechanisms without manual intervention or complex electrical control, perfectly adapting to the natural taper of the tea stalk bamboo workpiece. Secondly, it ensures the constant and reliable clamping force on the tea stalk bamboo workpiece. Because the linear drive mechanism outputs a stable thrust under a constant pressure air source, and this thrust is evenly distributed to the active and driven clamping mechanisms through a symmetrical reverse transmission mechanism—an "equal-arm lever"—the normal clamping force applied to the surface of the tea stalk bamboo workpiece remains essentially constant under any clamping diameter, thus decoupling the clamping force from the diameter of the tea stalk bamboo workpiece. The operator only needs to set the safety pressure threshold once through the pressure regulating valve to simultaneously... This invention avoids workpiece movement and vibration during processing due to insufficient clamping force, as well as surface indentations, fiber damage, and even permanent deformation of bamboo caused by excessive clamping, fundamentally ensuring processing accuracy and finished product yield. Finally, the clamping device of this invention significantly improves the system's economy and compactness. Due to the inherent "stroke multiplication" effect of the symmetrical reverse transmission mechanism—one unit stroke of the linear drive mechanism is converted into one unit of reverse displacement each of the active and driven clamping mechanisms, thereby making the total opening and closing range twice the stroke of the linear drive mechanism. This means that only a conventional short-stroke cylinder is needed to cover a large diameter variation range, avoiding the use of expensive and bulky long-stroke actuators. This makes the entire device compact, low-cost, and responsive, making it particularly suitable for integrated applications in automated production lines. Attached Figure Description
[0017] Fig. 1 This is a three-dimensional schematic diagram of the clamping device of the present invention, which can automatically adapt to changes in the diameter of tea stalks and bamboo, in the clamping state. Fig. 2 This is a three-dimensional schematic diagram of the clamping device of the present invention, which can automatically adapt to changes in the diameter of tea stalks and bamboo, in the released state. Fig. 3 This is a cross-sectional view of the clamping device of the present invention that can automatically adapt to changes in the diameter of tea stalks and bamboo. Among them, 1-linear drive mechanism, 2-active clamping mechanism, 21-first V-block, 3-driven clamping mechanism, 31-body, 32-second V-block, 4-symmetrical reverse transmission mechanism, 41-mounting plate, 42-rotary transmission component, 43-first transmission component, 44-second transmission component, 45-first slider, 46-first slide rail, 47-second slider, 48-second slide rail, 5-bearing mounting part, 51-bearing, 6-mounting shaft. Detailed Implementation
[0018] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments given herein are for illustration and explanation only and are not intended to limit the present invention.
[0019] As Figs. 1 to 3 shown, a clamping device capable of automatically adapting to the diameter change of tea cane, comprising a rack (not shown in the figure), a linear drive mechanism 1, a driving clamping mechanism 2, a driven clamping mechanism 3 and a symmetrical reverse transmission mechanism 4; The linear drive mechanism 1 is fixedly installed on the rack, the driving clamping mechanism 2 is connected with the output end of the linear drive mechanism 1, the driven clamping mechanism 3 is oppositely arranged with the driving clamping mechanism 2, and together they constitute a space for accommodating and clamping tea cane workpieces, the symmetrical reverse transmission mechanism 4 includes a mounting plate 41, a rotary transmission member 42, a first transmission member 43 and a second transmission member 44, the mounting plate 41 is fixedly installed on the rack, the rotary transmission member 42 is rotatably installed on the mounting plate 41, the first transmission member 43 and the second transmission member 44 are symmetrically and parallelly arranged at both ends of the rotary transmission member 42 with the rotation center of the rotary transmission member 42 as the axis of symmetry, and are respectively engaged with the rotary transmission member 42, the first transmission member 43 is slidably installed on the first sliding rail 46 through the first sliding block 45, the second transmission member 44 is slidably installed on the second sliding rail 48 through the second sliding block 47, and the first sliding rail 46 and the second sliding rail 48 are both fixedly installed on the mounting plate 41; the first transmission member 43 is fixedly connected with the driving clamping mechanism 2, and the second transmission member 44 is fixedly connected with the driven clamping mechanism 3; during operation, the linear drive mechanism 1 drives the driving clamping mechanism 2 and the first transmission member 43 to move linearly along the first sliding rail 46, driving the rotary transmission member 42 to rotate in turn, and then driving the second transmission member 44 and the driven clamping mechanism 3 to move synchronously in the opposite direction of the driving clamping mechanism 2, realizing the clamping and loosening of tea cane workpieces.
[0020] The symmetrical reverse transmission mechanism 4 synchronously converts the one-way linear motion of the linear drive mechanism 1 into the opposite or opposite linear motion of the driving clamping mechanism 2 and the driven clamping mechanism 3, when the linear drive mechanism 1 pushes the driving clamping mechanism 2, through the engagement transmission, the driven clamping mechanism 3 will inevitably produce an equal and synchronous reverse motion, which means that for any diameter of the workpiece, as long as its size is between the maximum and minimum opening of the two clamping mechanisms, the device can automatically adjust to the matching clamping position under the push of the linear drive mechanism 1, completely eliminating the inefficiency and uncertainty of manual adjustment, so that the device does not need the long-stroke, large-volume and high-cost cylinder described in the background art, nor the complex connecting rod or servo system, so that the overall structure is very compact, the manufacturing cost is significantly reduced, the response speed is fast, and it is easy to integrate and arrange in the automatic production line; Working principle: The linear driving mechanism 1 provides constant output force to drive the active clamping mechanism 2 and the first transmission member 43 to move linearly along the first slide rail 46, the movement of the first transmission member 43 is converted into the rotation of the rotary transmission member 42 through the meshing with the rotary transmission member 42, and since the second transmission member 44 is also meshed with the rotary transmission member 42 and the two are symmetrically arranged with the rotary center as the axis, the rotation of the rotary transmission member 42 will forcibly drive the second transmission member 44 to move linearly along the second slide rail 48 in the opposite direction of the first transmission member 43 at the same speed, and the second transmission member 44 in turn drives the driven clamping mechanism 3 to move synchronously and reversely, so that the active clamping mechanism 2 and the driven clamping mechanism 3 form precise opposite or opposite movements.
[0021] As a preferred embodiment of the present application, the linear driving mechanism 1 is a guide rod cylinder, and the guide rod of the guide rod cylinder is connected with the active clamping mechanism 2 for providing constant output force to the active clamping mechanism 2.
[0022] The guide rod cylinder can output stable thrust, and when the thrust is transmitted through the symmetric reverse transmission mechanism 4, since the transmission arms are equal, according to the principle of lever, the forces acting on the first transmission member 43 and the second transmission member 44 are equal in size in the ideal state, so no matter how far the active clamping mechanism 2 moves to adapt to different workpiece diameters, the clamping force transmitted to both sides of the workpiece always remains constant, and its size is only determined by the cylinder pressure, solving the problem of inconsistent clamping force of manual clamps, which can not only conveniently set the safe clamping force through the pressure regulating valve to prevent the bamboo from being pressed, but also can ensure reliable clamping and eliminate the movement during processing.
[0023] As a preferred embodiment of the present application, the active clamping mechanism 2 includes a first V-shaped block 21, and the driven clamping mechanism 3 includes a body 31 and two second V-shaped blocks 32, the two second V-shaped blocks 32 are fixedly installed in parallel and at intervals on the same side of the body 31, the second V-shaped block 32 is arranged opposite to the V-shaped opening of the first V-shaped block 21, and the body 31 is fixedly connected with the second transmission member 44.
[0024] When the symmetric reverse transmission mechanism 4 drives the second transmission member 44 to move, the movement is synchronously transmitted to the two second V-shaped blocks 32 arranged in parallel and at intervals through the body 31, and the two second V-shaped blocks 32 form a three-point clamping layout with the first V-shaped block 21, during the clamping process, the three V-shaped blocks jointly complete the final embracing of the workpiece to form a stable triangular constraint, which can automatically correct the axis deviation of the workpiece caused by slight bending or placement deviation, ensure that the axis of the workpiece remains consistent with the preset machining reference, realize excellent centering and stable support of the slender rod-shaped workpiece, effectively overcome the positioning deviation and machining vibration caused by workpiece deflection or single-point clamping, and significantly improve the machining precision and system rigidity.
[0025] As a preferred embodiment of the present application, the first transmission member 43 and the second transmission member 44 are both racks, and the rotary transmission member 42 is a gear, the racks are symmetrically arranged with the rotation center of the gear as the origin and are engaged with the gear.
[0026] Based on the classic gear and rack engagement transmission, the transmission chain is rigid contact without elastic deformation, making the motion transmission almost zero delay, extremely fast response, high positioning accuracy and repeatability, especially suitable for processing occasions requiring fast tempo and high precision positioning. Secondly, the gear and rack are standardized and modular mature industrial components with excellent wear resistance and load capacity, strong system rigidity, which can effectively resist the lateral cutting force in processing, ensure stable clamping, easy maintenance and long service life.
[0027] As a preferred embodiment of the present application, the symmetrical reverse transmission mechanism 4 includes a closed-loop transmission belt and a rotary transmission member 42, the rotary transmission member 42 includes two parallel transmission wheels, the transmission wheels are rotatably installed on the mounting plate 41, the closed-loop transmission belt is wrapped around and tensioned on the two transmission wheels, forming a path containing a pair of parallel transmission segments, and a first parallel transmission segment and a second parallel transmission segment are provided, wherein the first transmission member 43 is the first parallel transmission segment, the second transmission member 44 is the second parallel transmission segment, the driving clamping mechanism 2 is fixedly connected with the first parallel transmission segment of the closed-loop transmission belt, and the driven clamping mechanism 3 is fixedly connected with the second parallel transmission segment of the closed-loop transmission belt, the second parallel transmission segment is parallel to the extension direction of the first parallel transmission segment and opposite in motion direction.
[0028] The present embodiment utilizes a transmission system composed of a closed-loop transmission belt and two transmission wheels, the closed-loop transmission belt is tensioned on the two transmission wheels, forming two parallel straight segments, the driving clamping mechanism 2 is fixedly connected to the first parallel segment of the closed-loop transmission belt, and the driven clamping mechanism 3 is fixedly connected to the second parallel segment parallel thereto, when the linear driving mechanism 1 pushes the driving clamping mechanism 2 to move, it pulls the first parallel segment to move, thereby driving the two transmission wheels to rotate synchronously; the rotation of the transmission wheels synchronously drags the second parallel segment to move in the opposite direction, thereby pulling the driven clamping mechanism 3 to achieve clamping or loosening. The flexible transmission of the present embodiment can absorb and buffer the impact and vibration when driving starts and stops, making the clamping action more gentle and stable, significantly reducing the operating noise, which is conducive to improving the working environment and protecting the surface of the workpiece such as bamboo which is easily damaged. Secondly, the path of the closed-loop transmission belt can be designed flexibly to a certain extent based on the layout of the transmission wheels, providing higher design freedom for the overall structural layout of the device. In addition, the closed-loop transmission belt transmission usually does not need to be lubricated, the maintenance is cleaner, and it has a certain overload protection capacity.
[0029] As a preferred embodiment of the present application, the mounting plate 41 is provided with a pair of oppositely arranged bearing 51 mounting portions 5, each of which is provided with a bearing 51, and the rotary transmission member 42 is rotatably mounted on the mounting plate 41 through a mounting shaft 6 supported at both ends in the two bearings 51.
[0030] As a preferred embodiment of the present application, a position detection sensor is further included for detecting whether the active clamping mechanism 2 and the driven clamping mechanism 3 reach the preset clamping position or the release position.
[0031] As a preferred embodiment of the present application, the frame is provided with mechanical limit blocks for limiting the maximum stroke of the active clamping mechanism 2 and the driven clamping mechanism 3.
[0032] A processing production line includes a clamping device capable of automatically adapting to the diameter change of tea culm bamboo.
[0033] It should be understood that the above embodiments are one or more embodiments of the present application, and there are many other embodiments and variations of the present application based on the present application. Without making pioneering innovation, the deformation and modification of the present application by ordinary skilled in the art belong to the protection scope of the present application.
Claims
1. A clamping device that can automatically adapt to changes in the diameter of tea stalks and bamboo, characterized in that: It includes a frame, a linear drive mechanism, an active clamping mechanism, a driven clamping mechanism, and a symmetrical reverse transmission mechanism; The linear drive mechanism is fixedly mounted on the frame. The active clamping mechanism is connected to the output end of the linear drive mechanism. The driven clamping mechanism is arranged opposite to the active clamping mechanism, together forming a space for accommodating and clamping the tea stalk bamboo workpiece. The symmetrical reverse transmission mechanism includes a mounting plate, a rotary transmission component, a first transmission component, and a second transmission component. The mounting plate is fixedly mounted on the frame. The rotary transmission component is rotatably mounted on the mounting plate. The first transmission component and the second transmission component are symmetrically and parallelly arranged at both ends of the rotary transmission component with the rotation center of the rotary transmission component as the axis of symmetry, and respectively mesh with the rotary transmission component. The first transmission component is slidably mounted on the first slide rail via a first slider, and the second transmission component is slidably mounted on the second slide rail via a second slider. Both the first and second slide rails are fixedly mounted on the mounting plate. The first transmission component is fixedly connected to the active clamping mechanism, and the second transmission component is fixedly connected to the driven clamping mechanism. During operation, the linear drive mechanism drives the active clamping mechanism and the first transmission component to move linearly along the first slide rail, thereby driving the rotary transmission component to rotate. This, in turn, drives the second transmission component and the driven clamping mechanism to move synchronously in the opposite direction to the active clamping mechanism, thus achieving the clamping and releasing of the tea stalk bamboo workpiece.
2. The clamping device that can automatically adapt to changes in the diameter of tea stalks and bamboo, as described in claim 1, is characterized in that: The linear drive mechanism is a cylinder with a guide rod. The guide rod of the cylinder with a guide rod is connected to the active clamping mechanism to provide a constant output force to the active clamping mechanism.
3. The clamping device that can automatically adapt to changes in the diameter of tea stalks and bamboo, as described in claim 1, is characterized in that: The active clamping mechanism includes a first V-shaped block, and the driven clamping mechanism includes a body and two second V-shaped blocks. The two second V-shaped blocks are fixedly installed on the same side of the body in parallel and at intervals. The V-shaped openings of the second V-shaped blocks are opposite to those of the first V-shaped blocks. The body is fixedly connected to the second transmission member.
4. The clamping device that can automatically adapt to changes in the diameter of tea stalks and bamboo, as described in claim 1, is characterized in that: Both the first and second transmission components are racks, and the rotary transmission component is a gear. The racks are arranged symmetrically with the rotation center of the gear as the origin and mesh with the gear.
5. The clamping device that can automatically adapt to changes in the diameter of tea stalks and bamboo, as described in claim 1, is characterized in that: The symmetrical reverse transmission mechanism includes a closed-loop transmission belt and the rotary transmission component. The rotary transmission component includes two parallel transmission wheels, which are rotatably mounted on the mounting plate. The closed-loop transmission belt is wrapped around and tensioned on the two transmission wheels, forming a path containing a pair of parallel transmission segments. There are a first parallel transmission segment and a second parallel transmission segment, wherein the first transmission component is the first parallel transmission segment and the second transmission component is the second parallel transmission segment. The active clamping mechanism is fixedly connected to the first parallel transmission segment of the closed-loop transmission belt, and the driven clamping mechanism is fixedly connected to the second parallel transmission segment of the closed-loop transmission belt. The second parallel transmission segment is parallel to the extension direction of the first parallel transmission segment and moves in the opposite direction.
6. The clamping device that can automatically adapt to changes in the diameter of tea stalks and bamboo, as described in claim 1, is characterized in that: The mounting plate is provided with a pair of oppositely arranged bearing mounting parts, each bearing mounting part is provided with a bearing, and the rotary transmission component is rotatably mounted on the mounting plate through mounting shafts supported at both ends in the two bearings respectively.
7. The clamping device according to claim 1, which can automatically adapt to changes in the diameter of tea stalks and bamboo, is characterized in that: It also includes a position detection sensor for detecting whether the active clamping mechanism and the driven clamping mechanism have reached a preset clamping position or a release position.
8. The clamping device that can automatically adapt to changes in the diameter of tea stalks and bamboo according to claim 1, characterized in that: The frame is provided with mechanical limit blocks for limiting the maximum stroke of the active clamping mechanism and the driven clamping mechanism.
9. A processing production line, characterized in that: Includes a clamping device as described in any one of claims 1-8 that can automatically adapt to changes in the diameter of tea stalks and bamboo.