Centering and clamping positioning device for sawing bamboo machine

Abstract

The utility model relates to a bamboo sawing machine technical field especially bamboo sawing machine's centering clamping positioning device, through design left and right independent first clamping mechanism and second clamping mechanism, through design pivot joint of specific position, cooperation telescopic cylinder and specific connecting structure of clamping arm, make first clamping arm and second clamping arm realize the clamping of the bamboo under the independent outer opening and the inner rotation, in this clamping mode, when aiming at the natural bending bamboo, can through flexible adjustment first telescopic cylinder and second telescopic cylinder's stroke, make the clamping part adapt to the natural bending bamboo with certain lateral deviation, make the bamboo get stable clamping fixed before cutting, and because first clamping arm and second clamping arm all adopt the clamping mode of outer opening and inner rotation, when the storage tank drives the bamboo horizontal movement, can through control two clamping arms open outwards enough angle, avoid the collision interference of bamboo horizontal movement with clamping arm.

Description

Technical Field

[0001] This utility model relates to the field of bamboo sawing machine technology, and in particular to a centering clamping and positioning device for bamboo sawing machines. Background Technology

[0002] Chinese patent CN219748356U discloses a bamboo sawing machine, which involves a clamping cylinder and a clamping block. After the raw bamboo is positioned for cutting, the clamping cylinder drives the clamping block to move downwards, clamping the raw bamboo below and facilitating its fixation during sawing. However, this clamping method, which relies solely on the clamping cylinder to move the clamping block downwards, has the following problems: the raw bamboo itself naturally has a certain degree of curvature. Therefore, when each raw bamboo is conveyed to the area below the clamping cylinder, its curvature may cause it to deviate from directly below the clamping block. In this case, the clamping block cannot stably fix the raw bamboo. Utility Model Content

[0003] The technical problem to be solved by this utility model is to improve the centering clamping and positioning device of the bamboo sawing machine, and replace the original pre-saw positioning method of pressing the clamping block downward with the clamping cylinder, so as to stably clamp and position the raw bamboo with different natural bends before sawing.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: The centering and clamping positioning device of the bamboo saw includes: support; The first clamping mechanism includes a first telescopic cylinder and a first clamping arm. One end of the first telescopic cylinder is pivotally connected to the bracket via a first pivot point. The first clamping arm is L-shaped, formed by a long side and a short side. The first clamping arm is pivotally connected to the bracket via a second pivot point at the corner of the L-shape. The short side of the first clamping arm is pivotally connected to the other end of the first telescopic cylinder via a third pivot point. The inner side of the long side is the clamping part. The third pivot point is located outside the second pivot point relative to the clamping center. The first pivot point is located above the second pivot point. The second clamping mechanism includes a second telescopic cylinder and a second clamping arm. One end of the second telescopic cylinder is pivotally connected to the bracket via a fourth pivot point. The second clamping arm is L-shaped, formed by a long side and a short side. The second clamping arm is pivotally connected to the bracket via a fifth pivot point at the corner of the L-shape. The short side of the first clamping arm is pivotally connected to the other end of the second telescopic cylinder via a sixth pivot point. The inner side of the long side is the clamping part. The sixth pivot point is located outside the fifth pivot point relative to the clamping center. The fourth pivot point is located above the fifth pivot point.

[0005] Furthermore, in the above-mentioned centering and clamping positioning device structure of the bamboo saw, the bracket is plate-shaped, the first clamping mechanism is located on the first side of the bracket, and the second clamping mechanism is located on the second side of the bracket.

[0006] Furthermore, in the above-mentioned centering and clamping positioning device structure of the bamboo saw, the clamping part of the first clamping arm is provided with a chamfered edge that is inclined away from the clamping center, and the clamping part of the second clamping arm is provided with a chamfered edge that is inclined away from the clamping center.

[0007] Furthermore, in the above-mentioned centering and clamping positioning device structure of the bamboo saw, the first telescopic cylinder is a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder.

[0008] Furthermore, in the above-mentioned centering and clamping positioning device structure of the bamboo saw, the second telescopic cylinder is a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder.

[0009] The beneficial effects of this utility model are as follows: By designing a first clamping mechanism and a second clamping mechanism that are independent of each other, and by designing a pivot point at a specific position, in conjunction with a specific connection structure of a telescopic cylinder and a clamping arm, the first clamping arm and the second clamping arm can clamp the raw bamboo below through independent outward expansion and inward rotation. In this clamping method, when dealing with raw bamboo with natural curvature, the stroke of the first telescopic cylinder and the second telescopic cylinder can be flexibly adjusted to make the clamping part adapt to the natural curvature of the raw bamboo with a certain lateral offset, so that the raw bamboo is stably clamped and fixed before cutting. Moreover, since the first clamping arm and the second clamping arm both adopt the outward expansion and inward rotation clamping method, when the storage tank moves the raw bamboo laterally, the two clamping arms can be controlled to open outward at a sufficient angle to avoid collision and interference between the raw bamboo and the clamping arms during the lateral movement. Attached Figure Description

[0010] Figure 1 A schematic diagram of the centering and clamping positioning device of a bamboo sawing machine according to a specific embodiment of this utility model; Figure 2 for Figure 1 Enlarged view of part A; Label Explanation: 1. Bracket; 2. First clamping mechanism; 21. First telescopic cylinder; 22. First clamping arm; 221. First pivot point; 222. Second pivot point; 223. Third pivot point; 3. Second clamping mechanism; 31. Second telescopic cylinder; 32. Second clamping arm; 321. Fourth pivot point; 322. Fifth pivot point; 323. Sixth pivot point. Detailed Implementation

[0011] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0012] Please refer to Figures 1 to 2 The present invention relates to a centering and clamping positioning device for a bamboo sawing machine, comprising: Bracket 1; The first clamping mechanism 2 includes a first telescopic cylinder 21 and a first clamping arm 22. One end of the first telescopic cylinder 21 is pivotally connected to the bracket 1 through a first pivot point 221. The first clamping arm 22 is L-shaped, formed by a long side and a short side. The first clamping arm 22 is pivotally connected to the bracket 1 through a second pivot point 222 at the corner of the L-shape. The short side of the first clamping arm 22 is pivotally connected to the other end of the first telescopic cylinder 21 through a third pivot point 223. The inner side of the long side is the clamping part. The third pivot point 223 is located outside the second pivot point 222 relative to the clamping center. The first pivot point 221 is located above the second pivot point 222. The second clamping mechanism 3 includes a second telescopic cylinder 31 and a second clamping arm 32. One end of the second telescopic cylinder 31 is pivotally connected to the bracket 1 via a fourth pivot point 321. The second clamping arm 32 is L-shaped, formed by a long side and a short side. The second clamping arm 32 is pivotally connected to the bracket 1 via a fifth pivot point 322 at the corner of the L-shape. The short side of the first clamping arm 22 is pivotally connected to the other end of the second telescopic cylinder 31 via a sixth pivot point 323. The inner side of the long side is the clamping part. The sixth pivot point 323 is located outside the fifth pivot point 322 relative to the clamping center. The fourth pivot point 321 is located above the fifth pivot point 322.

[0013] This utility model improves upon the clamping cylinder and clamping block structure of a bamboo sawing machine disclosed in Chinese Patent No. CN219748356U. This utility model designs a first clamping mechanism 2 and a second clamping mechanism 3 that are independent of each other. By designing pivot points at specific positions and coordinating specific connection structures of telescopic cylinders and clamping arms, the first clamping arm 22 and the second clamping arm 32 achieve clamping of the raw bamboo below through independent outward expansion and inward rotation. In this clamping method, when dealing with raw bamboo with natural curvature, the stroke of the first telescopic cylinder 21 and the second telescopic cylinder 31 can be flexibly adjusted to allow the clamping part to adapt to the natural curvature of the raw bamboo with a certain lateral offset, ensuring stable clamping and fixing of the raw bamboo before cutting. Furthermore, since both the first clamping arm 22 and the second clamping arm 32 adopt an outward expansion and inward rotation clamping method, when the storage trough moves the raw bamboo laterally, the angle at which the two clamping arms open outward can be controlled to avoid collision and interference between the raw bamboo and the clamping arms during the lateral movement.

[0014] In a preferred embodiment, the bracket 1 is plate-shaped, with the first clamping mechanism 2 located on the first side of the bracket 1 and the second clamping mechanism 3 located on the second side of the bracket 1.

[0015] In the above embodiments, the first clamping structure and the second clamping structure are respectively connected to the two sides of the bracket 1, so that the first clamping arm 22 and the second clamping arm 32 have a certain degree of misalignment when clamping the raw bamboo. When dealing with raw bamboo with a smaller diameter, this structure can ensure that the raw bamboo with a smaller diameter is clamped tightly because the ends of the first clamping arm 22 and the second clamping arm 32 can overlap to a certain extent through misalignment.

[0016] In a preferred embodiment, the clamping portion of the first clamping arm 22 is provided with a chamfered edge that is inclined away from the clamping center, and the clamping portion of the second clamping arm 32 is provided with a chamfered edge that is inclined away from the clamping center.

[0017] In the above embodiments, since there is a large gap between the first pivot point 221 and the fourth pivot point 321, by setting chamfers on the clamping parts of the first clamping arm 22 and the second clamping arm 32, the contact points of the first clamping arm 22 and the second clamping arm 32 that contact the side of the raw bamboo and the bottom support point of the raw bamboo can form a position that is close to an equilateral triangle, thereby ensuring sufficient clamping force.

[0018] In a preferred embodiment, the first telescopic cylinder 21 is a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder.

[0019] In a preferred embodiment, the second telescopic cylinder 31 is a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder.

[0020] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A centering clamping and positioning device for a bamboo sawing machine, characterized in that, include: support; The first clamping mechanism includes a first telescopic cylinder and a first clamping arm. One end of the first telescopic cylinder is pivotally connected to the bracket via a first pivot point. The first clamping arm is L-shaped, formed by a long side and a short side. The first clamping arm is pivotally connected to the bracket via a second pivot point at the corner of the L-shape. The short side of the first clamping arm is pivotally connected to the other end of the first telescopic cylinder via a third pivot point. The inner side of the long side is the clamping part. The third pivot point is located outside the second pivot point relative to the clamping center. The first pivot point is located above the second pivot point. The second clamping mechanism includes a second telescopic cylinder and a second clamping arm. One end of the second telescopic cylinder is pivotally connected to the bracket via a fourth pivot point. The second clamping arm is L-shaped, formed by a long side and a short side. The second clamping arm is pivotally connected to the bracket via a fifth pivot point at the corner of the L-shape. The short side of the first clamping arm is pivotally connected to the other end of the second telescopic cylinder via a sixth pivot point. The inner side of the long side is the clamping part. The sixth pivot point is located outside the fifth pivot point relative to the clamping center. The fourth pivot point is located above the fifth pivot point.

2. The centering and clamping positioning device for a bamboo sawing machine according to claim 1, characterized in that, The bracket is plate-shaped, with a first clamping mechanism located on the first side of the bracket and a second clamping mechanism located on the second side of the bracket.

3. The centering and clamping positioning device for a bamboo sawing machine according to claim 1, characterized in that, The clamping part of the first clamping arm is provided with a chamfered edge that is inclined away from the clamping center, and the clamping part of the second clamping arm is provided with a chamfered edge that is inclined away from the clamping center.

4. The centering clamping and positioning device for a bamboo sawing machine according to claim 1, characterized in that, The first telescopic cylinder is a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder.

5. The centering and clamping positioning device for a bamboo sawing machine according to claim 1, characterized in that, The second telescopic cylinder is a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder.

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