A bending machine with synchronous shaft eccentricity adjustable mechanism
By designing an adjustable eccentricity mechanism for the synchronous shaft in the bending machine, and using the adjustment component to achieve unidirectional limiting of the synchronous shaft body, the problem of fatigue damage of the torsion shaft is solved, product accuracy is improved, equipment wear is reduced, and maintenance costs are lowered.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANGZHOU QIHANG MASCH CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-03
AI Technical Summary
After prolonged use, the torsion shaft of existing bending machines is prone to fatigue damage or plastic deformation, which leads to non-parallelism between the slider and the worktable, affecting product accuracy, increasing equipment wear, and increasing maintenance costs.
Design a bending machine with a synchronous shaft eccentric adjustable mechanism. Through an adjustment system consisting of a fixed seat, slide bar, threaded rod, ratchet, and torsion spring, the synchronous shaft body can be unidirectionally limited and adjusted to prevent damage to the torsion shaft.
Effective adjustment of synchronous shaft eccentricity ensures the accuracy of bending products, reduces equipment wear, and lowers maintenance costs.
Smart Images
Figure CN224444185U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bending machine technology, specifically a bending machine with a synchronous shaft eccentric adjustable mechanism. Background Technology
[0002] As an indispensable key piece of equipment in industrial production, the bending machine is a specialized machine that can precisely bend thin plates of varying thicknesses. Due to its high efficiency and precision, it has been widely used in many industries such as sheet metal processing, automobile manufacturing, and electrical appliance production.
[0003] As a core piece of equipment in industries such as sheet metal processing, bending machines are prone to performance degradation due to fatigue when their internal components are subjected to continuous alternating stress over extended periods of operation, especially the torsion shaft. This can occur when the torsion shaft is subjected to torque far exceeding design standards after prolonged full-load operation, leading to irreversible plastic deformation of its internal structure. Furthermore, improper operation by operators, such as incorrect workpiece clamping or unreasonable bending parameter settings, can also cause the torsion shaft to break off, meaning the two ends of the torsion shaft are not aligned. This directly results in the lower plane of the slide and the plane of the worktable being non-parallel. On one hand, this severely affects the angular accuracy and straightness of the bent products, causing a large number of products to become defective due to failing to meet quality standards, increasing production costs. On the other hand, continued use in this condition will further exacerbate wear on the mechanical structure due to uneven stress on various machine parts, leading to transmission system failures and even serious damage to the machine tool. This significantly increases equipment maintenance costs and downtime, causing substantial economic losses to enterprises and failing to meet current demands. Utility Model Content
[0004] The purpose of this invention is to provide a bending machine with a synchronous shaft eccentric adjustable mechanism to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a bending machine with a synchronous shaft eccentric adjustable mechanism, comprising a bending machine slide plate, a machine body plate, a synchronous shaft body, and an adjusting component. The machine body plate is fixedly installed on the side of the bending machine slide plate, the synchronous shaft body is disposed inside the machine body plate, and the adjusting component is disposed on the side of the bending machine slide plate.
[0006] The adjustment assembly consists of a fixed base, a sliding rod, a sliding sleeve, a threaded rod, a threaded sleeve, a connecting plate, a fixed sleeve, a bearing, a ratchet, a fixed post, an annular sleeve, a torsion spring, and a pawl. The fixed base is fixedly installed on the side of the bending machine slide plate. The sliding rod is fixedly installed inside the fixed base. The sliding sleeve is slidably installed on the surface of the sliding rod. The threaded rod is rotatably installed inside the fixed base. The threaded sleeve is threadedly installed on the surface of the threaded rod. The connecting plate is fixedly installed on the side of the threaded sleeve. The fixed sleeve is fixedly installed on the top of the connecting plate. The bearing is fixedly installed inside the fixed sleeve. The ratchet is fixedly installed on the surface of the threaded rod. The fixed post is fixedly installed on the top of the fixed base. The annular sleeve is rotatably installed on the surface of the fixed post. The torsion spring is sleeved on the surface of the fixed post. The pawl is fixedly installed on the side of the annular sleeve.
[0007] Preferably, the connecting plate and the sliding sleeve are fixedly connected. By rotating the threaded rod, under the constraint of the guide unit composed of the sliding rod and the sliding sleeve, the threaded sleeve, due to the transmission characteristics of the threaded pair, converts the rotational motion of the threaded rod into linear motion along the axis of the sliding rod, thereby driving the connecting plate fixedly connected to it to move up and down.
[0008] Preferably, the synchronous shaft body is fixedly installed inside the bearing, which allows the synchronous shaft body to rotate inside the fixed sleeve via the bearing.
[0009] Preferably, a throttle is fixedly installed on the top of the threaded rod, which can drive the threaded rod to rotate.
[0010] Preferably, one end of the torsion spring is fixedly connected to the fixed post, and the other end of the torsion spring is fixedly connected to the annular sleeve. When the annular sleeve rotates around the fixed post under the action of external force, the other end of the torsion spring is subjected to force and undergoes torsional deformation. Utilizing the elastic restoring force of the torsion spring, after the external force on the annular sleeve is removed, the torsion spring will drive the annular sleeve to rotate in the opposite direction through deformation recovery, so that it is reset.
[0011] Preferably, the ratchet and pawl are engaged. When the ratchet rotates counterclockwise under the drive of an external force, the pawl will engage in the tooth groove of the ratchet under the action of the torsion spring, thereby preventing the ratchet from rotating clockwise and ensuring that the ratchet can only move in one direction.
[0012] Preferably, a protrusion is fixedly installed on the side of the pawl, which can drive the pawl to move.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] (1) The bending machine with the eccentric adjustable mechanism of the synchronous shaft drives the threaded rod to rotate counterclockwise by the throttle, which can make the synchronous shaft body move upward. At the same time, the pawl will be embedded in the tooth groove of the ratchet under the action of the torsion spring, thereby preventing the ratchet from rotating clockwise and ensuring that the ratchet can only move in one direction. It can limit the adjusted synchronous shaft body and has a good adjustment effect on the synchronous shaft body.
[0015] (2) The bending machine with the synchronous shaft eccentric adjustable mechanism drives the pawl to disengage from the tooth groove through the protrusion, which can release the pawl from the ratchet wheel limit, and can rotate the throttle clockwise to drive the synchronous shaft body to move downward. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the connecting plate, fixing sleeve, and bearing structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the fixed base, sliding rod, and sliding sleeve structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the annular sleeve, torsion spring, and ratchet structure of this utility model.
[0020] In the diagram: 1. Bending machine slide plate; 2. Machine body plate; 3. Synchronous shaft body; 4. Adjustment assembly; 401. Fixed seat; 402. Slide rod; 403. Slide sleeve; 404. Threaded rod; 405. Threaded sleeve; 406. Connecting plate; 407. Fixed sleeve; 408. Bearing; 409. Ratchet; 410. Fixed column; 411. Annular sleeve; 412. Torsion spring; 413. Pawl. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-4 This utility model provides a technical solution: a bending machine with a synchronous shaft eccentric adjustable mechanism, including a bending machine slide plate 1, a machine body plate 2, a synchronous shaft body 3, and an adjustment component 4. The machine body plate 2 is fixedly installed on the side of the bending machine slide plate 1, the synchronous shaft body 3 is disposed inside the machine body plate 2, and the adjustment component 4 is disposed on the side of the bending machine slide plate 1.
[0023] The adjusting assembly 4 consists of a fixed base 401, a slide rod 402, a sliding sleeve 403, a threaded rod 404, a threaded sleeve 405, a connecting plate 406, a fixed sleeve 407, a bearing 408, a ratchet 409, a fixed column 410, an annular sleeve 411, a torsion spring 412, and a pawl 413. The fixed base 401 is fixedly installed on the side of the bending machine slide plate 1. The slide rod 402 is fixedly installed inside the fixed base 401. The sliding sleeve 403 is slidably installed on the surface of the slide rod 402. The threaded rod 404 is rotatably installed inside the fixed base 401. A handle is fixedly installed on the top of the threaded rod 404, which can drive the threaded rod 404. Rotation occurs when the threaded sleeve 405 is threaded onto the surface of the threaded rod 404, and the connecting plate 406 is fixedly installed on the side of the threaded sleeve 405. The connecting plate 406 and the sliding sleeve 403 are fixedly connected. By rotating the threaded rod 404, under the constraint of the guide unit composed of the sliding rod 402 and the sliding sleeve 403, the threaded sleeve 405, due to the transmission characteristics of the threaded pair, converts the rotational motion of the threaded rod 404 into linear motion along the axial direction of the sliding rod 402, thereby driving the connecting plate 406, which is fixedly connected to it, to move up and down. The fixed sleeve 407 is fixedly installed on the top of the connecting plate 406, and the bearing 408 is fixedly installed inside the fixed sleeve 407, synchronously... The shaft body 3 is fixedly installed inside the bearing 408. This arrangement allows the synchronous shaft body 3 to rotate inside the fixed sleeve 407 via the bearing 408. The ratchet 409 is fixedly installed on the surface of the threaded rod 404. The fixed post 410 is fixedly installed on the top of the fixed seat 401. The annular sleeve 411 is rotatably installed on the surface of the fixed post 410. The torsion spring 412 is sleeved on the surface of the fixed post 410. One end of the torsion spring 412 is fixedly connected to the fixed post 410, and the other end of the torsion spring 412 is fixedly connected to the annular sleeve 411. When the annular sleeve 411 rotates around the fixed post 410 under the action of external force, the other end of the torsion spring 412 is subjected to the same force. When the force causes torsional deformation, the elastic restoring force of the torsion spring 412 is utilized. After the external force on the annular sleeve 411 is removed, the torsion spring 412 will drive the annular sleeve 411 to rotate in the opposite direction through deformation recovery, thus resetting it. The pawl 413 is fixedly installed on the side of the annular sleeve 411. The ratchet 409 and the pawl 413 mesh. When the ratchet 409 rotates counterclockwise under the drive of external force, the pawl 413 will be engaged in the tooth groove of the ratchet 409 under the action of the torsion spring 412, thereby preventing the ratchet 409 from rotating clockwise and ensuring that the ratchet 409 can only move in one direction. A protrusion is fixedly installed on the side of the pawl 413, which can drive the pawl 413 to move.
[0024] In use, the throttle drives the threaded rod 404 to rotate counterclockwise. Under the guidance of the guide unit composed of the slide rod 402 and the slide sleeve 403, the threaded sleeve 405, due to the transmission characteristics of the threaded pair, converts the rotational motion of the threaded rod 404 into linear motion along the axis of the slide rod 402, thereby driving the connecting plate 406 fixedly connected to it to move upward. This allows the fixed sleeve 407 and the bearing 408 to drive the synchronous shaft body 3 to move upward. At the same time, the pawl 413, under the action of the torsion spring 412, will engage in the tooth groove of the ratchet 409, thereby preventing the ratchet 409 from rotating clockwise and ensuring that the ratchet 409 can only move in one direction. This can limit the adjusted synchronous shaft body 3. By driving the pawl 413 out of the tooth groove through the protrusion, the limitation of the pawl 413 on the ratchet 409 can be released, and the throttle can be turned clockwise to drive the synchronous shaft body 3 to move downward.
Claims
1. A bending machine with a synchronous shaft eccentric adjustable mechanism, comprising a bending machine slide plate (1), a machine body plate (2), a synchronous shaft body (3), and an adjusting assembly (4), characterized in that: The body plate (2) is fixedly installed on the side of the bending machine slide plate (1), the synchronous shaft body (3) is located inside the body plate (2), and the adjustment component (4) is located on the side of the bending machine slide plate (1). The adjusting assembly (4) consists of a fixed base (401), a slide rod (402), a sliding sleeve (403), a threaded rod (404), a threaded sleeve (405), a connecting plate (406), a fixed sleeve (407), a bearing (408), a ratchet (409), a fixed column (410), an annular sleeve (411), a torsion spring (412), and a pawl (413). The fixed base (401) is fixedly installed on the side of the bending machine slide plate (1). The slide rod (402) is fixedly installed inside the fixed base (401). The sliding sleeve (403) is slidably installed on the surface of the slide rod (402). The threaded rod (404) is rotatably installed inside the fixed base (401). The sleeve (405) is threaded onto the surface of the threaded rod (404). The connecting plate (406) is fixedly installed on the side of the threaded sleeve (405). The fixing sleeve (407) is fixedly installed on the top of the connecting plate (406). The bearing (408) is fixedly installed inside the fixing sleeve (407). The ratchet (409) is fixedly installed on the surface of the threaded rod (404). The fixing post (410) is fixedly installed on the top of the fixing seat (401). The annular sleeve (411) is rotatably installed on the surface of the fixing post (410). The torsion spring (412) is sleeved on the surface of the fixing post (410). The pawl (413) is fixedly installed on the side of the annular sleeve (411).
2. The bending machine having a synchronous shaft eccentricity adjustable mechanism according to claim 1, characterized in that: The connecting plate (406) and the sliding sleeve (403) are fixedly connected.
3. The bending machine having a synchronous shaft eccentricity adjustable mechanism according to claim 1, characterized in that: The synchronous shaft body (3) is fixedly installed inside the bearing (408).
4. The bending machine having a synchronous shaft eccentricity adjustable mechanism according to claim 1, characterized in that: A throttle is fixedly installed on the top of the threaded rod (404).
5. The bending machine having a synchronous shaft eccentricity adjustable mechanism according to claim 1, characterized in that: One end of the torsion spring (412) is fixedly connected to the fixed post (410), and the other end of the torsion spring (412) is fixedly connected to the annular sleeve (411).
6. The bending machine having a synchronous shaft eccentricity adjustable mechanism according to claim 1, characterized in that: The ratchet (409) and pawl (413) engage.
7. The bending machine having a synchronous shaft eccentricity adjustable mechanism according to claim 1, characterized in that: The pawl (413) has a protrusion fixedly installed on its side.