Clamping and positioning device for horizontal lathe
By using a multi-point, large-area compression positioning clamping device, combined with hydraulic rods and laser ranging probes, the problem of small contact surface in the three-jaw linkage mechanism of horizontal lathes is solved, achieving stable clamping and wear control of cylindrical workpieces, and improving clamping stability and adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG CHANGYUMING INTELLIGENT MANUFACTURING CO LTD
- Filing Date
- 2025-04-07
- Publication Date
- 2026-04-17
AI Technical Summary
The existing three-jaw linkage clamping mechanism of horizontal lathes has a small contact surface with cylindrical workpieces, requiring a high-pressure hydraulic cylinder for stable clamping. After long-term use, uneven wear leads to insufficient clamping stability.
A clamping device with multi-point, large-area extrusion positioning is adopted, which combines hydraulic rods, laser rangefinders and locking bolts. The position of the clamping plate is adjusted in real time by the laser rangefinder, and stable clamping is achieved with the centering laser emitter. The locking bolts extrude cylindrical workpieces at multiple points.
It enables stable clamping of cylindrical workpieces at multiple points over a large area, reduces the wear rate of various parts, and improves the stability and adaptability of clamping, making it suitable for long-term processing.
Smart Images

Figure CN224129128U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of horizontal lathe technology, specifically a clamping and positioning device for a horizontal lathe. Background Technology
[0002] Horizontal lathes are the basic equipment for machining, especially suitable for roughing and semi-finishing cylindrical workpieces. With the development of technology, traditional horizontal lathes have been gradually replaced by CNC lathes, but they still play an important role in the machining of simple parts and small-scale production.
[0003] Existing clamping and positioning mechanisms for horizontal lathes are hydraulically driven three-jaw linkage mechanisms. While these are compact and enable rapid clamping, their small contact area with cylindrical workpieces necessitates the use of high-pressure hydraulic cylinders for stable clamping. Furthermore, after prolonged use, uneven wear occurs across different parts of the three-jaw linkage mechanism, resulting in insufficient clamping stability. Therefore, a new clamping and positioning device for horizontal lathes needs to be designed to address these issues. Summary of the Invention
[0004] The purpose of this utility model is to provide a clamping and positioning device for a horizontal lathe, so as to solve the problems mentioned in the background art, that the existing three-jaw linkage clamping mechanism has a small contact surface with cylindrical workpieces, requires the use of a high-pressure hydraulic cylinder to achieve stable clamping, and after long-term use, the wear of different parts of the three-jaw linkage mechanism is different, resulting in insufficient clamping stability.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a clamping and positioning device for a horizontal lathe, comprising a clamping base, a mounting column at one end of the clamping base, a mounting hole at the other end of the clamping base, an equipment cavity in the middle of the clamping base, the mounting hole communicating with the equipment cavity, a combined cavity in the inner side of the clamping base near the mounting column, a hydraulic rod fixed on the inner wall of the equipment cavity, a clamping plate installed at the end of the hydraulic rod, a laser ranging probe installed on the side of the clamping plate away from the center of the clamping base, a stabilizing column fixed at one end of the clamping plate, the stabilizing column fitting against one end of the inner wall of the track groove, the track groove being opened on the inner vertical surface of the equipment cavity, a centering laser emitter fixed at the center of the inner vertical surface of the equipment cavity, a fixing column welded to the outer surface of the other end of the clamping base, a locking bolt installed in the fixing column, the end of the locking bolt connecting to a positioning hole, the positioning hole being opened on the side wall of the other end of the clamping base, and an anti-slip pad fixed to the end of the locking bolt.
[0006] Preferably, the overall frontal cross-sectional shape of the mounting hole and the equipment cavity is "convex", and the center of the mounting hole and the center of the equipment cavity are on the same horizontal straight line.
[0007] Preferably, the hydraulic rods are symmetrically distributed about the center of the clamping plate, and the center of the clamping plate and the center of the laser ranging probe are on the same straight line passing through the center of the equipment cavity.
[0008] Preferably, the clamping plates are distributed at equal angles with respect to the center of the equipment cavity, and the clamping plates are configured as arc-shaped plate structures.
[0009] Preferably, the stabilizing column and the track groove are slidably connected, and the center of the track groove and the center of the clamping plate are on the same straight line passing through the center of the equipment cavity.
[0010] Preferably, the fixing post, locking bolt, and positioning hole are all distributed at equal angles about the center of the mounting hole, and the locking bolt is threaded to the inner wall of the fixing post and the positioning hole.
[0011] Compared with the prior art, the beneficial effects of this utility model are: the clamping and positioning device for the horizontal lathe adopts a new structural design, which can perform multi-point and large-area extrusion positioning of cylindrical workpieces, with high stability. Moreover, the working position of the clamping plate can be adjusted at any time through the laser rangefinder probe, the wear rate of each part is low, and it can work stably for a long time.
[0012] 1. The hydraulic rod drives the clamping plate to move linearly along the track groove with the stabilizing column, which can make contact with the surface of the cylindrical workpiece at multiple points and with a large area. With the locking bolts installed at equal angles, the cylindrical workpiece can be stably clamped and positioned.
[0013] 2. The distance between the clamping plate and the inner wall of the equipment cavity can be monitored in real time by the laser ranging probe. With the centering laser emitter, it can stably center and clamp cylindrical workpieces. It also facilitates the adaptive control of the extension distance of the hydraulic rod after wear on different clamping plate contact surfaces, ensuring the clamping effect of the clamping plate. Attached Figure Description
[0014] Figure 1 This is a front view structural diagram of the present invention;
[0015] Figure 2 This is a side view of the structure of this utility model;
[0016] Figure 3 This is a frontal cross-sectional view of the present invention.
[0017] Figure 4 This is a side view sectional structural diagram of the present invention.
[0018] In the diagram: 1. Clamping seat; 2. Mounting column; 3. Mounting hole; 4. Equipment cavity; 5. Integrated cavity; 6. Hydraulic rod; 7. Clamping plate; 8. Laser rangefinder probe; 9. Stabilizing column; 10. Track groove; 11. Centering laser emitter; 12. Fixing column; 13. Locking bolt; 14. Positioning hole; 15. Anti-slip pad. Detailed implementation mode
[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.
[0020] Please refer to Figure 1-4 , the present utility model provides a technical solution: a clamping and positioning device for a horizontal lathe, including a clamping seat 1, a mounting column 2, a mounting hole 3, a device cavity 4, a comprehensive cavity 5, a hydraulic rod 6, a clamping plate 7, a laser distance measuring probe 8, a stabilizing column 9, a track groove 10, a centering laser emitter 11, a fixing column 12, a locking bolt 13, a positioning hole 14 and an anti-slip pad 15. An installation column 2 is arranged at one end of the clamping seat 1, a mounting hole 3 is opened at the other end of the clamping seat 1, a device cavity 4 is opened in the middle of the clamping seat 1, the mounting hole 3 is communicated with the device cavity 4, a comprehensive cavity 5 is opened inside the clamping seat 1 near the end of the mounting column 2, a hydraulic rod 6 is fixed on the inner wall of the device cavity 4, a clamping plate 7 is installed at the end of the hydraulic rod 6, a laser distance measuring probe 8 is installed on the side of the clamping plate 7 away from the center of the clamping seat 1, a stabilizing column 9 is fixed at one end of the clamping plate 7, the stabilizing column 9 is in contact with one end of the inner wall of the track groove 10, the track groove 10 is opened on the inner vertical plane of the device cavity 4, a centering laser emitter 11 is fixed at the center of the inner vertical plane of the device cavity 4, a fixing column 12 is welded on the outer side surface of the other end of the clamping seat 1, a locking bolt 13 is installed in the fixing column 12, the end of the locking bolt 13 is connected with the positioning hole 14, the positioning hole 14 is opened on the side wall of the other end of the clamping seat 1, and an anti-slip pad 15 is fixed at the end of the locking bolt 13.
[0021] In this example, the overall front view sectional shape of the mounting hole 3 and the device cavity 4 is "convex" shaped, and the centers of the mounting hole 3 and the device cavity 4 are on the same horizontal line. The above structural design facilitates the smooth insertion of the end of the cylindrical workpiece and also facilitates the installation of the clamping mechanism.
[0022] The hydraulic rods 6 are symmetrically distributed about the center of the clamping plate 7, and the center of the clamping plate 7 and the center of the laser distance measuring probe 8 are on the same straight line passing through the center of the device cavity 4. The above structural design enables the hydraulic rods 6 to stably drive the clamping plate 7 and ensures that the laser distance measuring probe 8 can accurately measure the distance between the center of the outer side surface of the clamping plate 7 and the inner wall of the device cavity 4.
[0023] The clamping plates 7 are equally angularly distributed about the center of the device cavity 4, and the clamping plates 7 are set as arc-shaped plate structures. The above structural design enables the clamping plates 7 to have a large-area contact with the surface of the cylindrical workpiece and ensures the positioning effect on the cylindrical workpiece.
[0024] The stabilizing column 9 and the track groove 10 are slidably connected. The center of the track groove 10 and the center of the clamping plate 7 are on the same straight line passing through the center of the equipment cavity 4. The above structural design further improves the stability of the clamping plate 7 during straight adjustment and static use, and effectively avoids the clamping plate 7 from tilting.
[0025] The fixing post 12, locking bolt 13 and positioning hole 14 are all distributed at equal angles about the center of mounting hole 3. The locking bolt 13 is threaded to the inner wall of fixing post 12 and positioning hole 14. The above structural design allows locking bolt 13 to press cylindrical workpieces at multiple points, further improving clamping stability.
[0026] Working principle: During installation, the mounting column 2 is connected to the horizontal lathe support mechanism through existing connection methods. The hydraulic rod 6, laser ranging probe 8, centering laser emitter 11 and other supporting equipment such as power supply equipment are installed in the integrated cavity 5.
[0027] In use, activate the centering laser emitter 11, align the center of the end of the cylindrical workpiece with the laser point emitted by the centering laser emitter 11, and insert the end of the cylindrical workpiece. Figure 4 Inside the mounting hole 3 and the equipment cavity 4, the hydraulic rod 6 is activated, and the hydraulic rod 6 extends to push the clamping plate 7 close to the cylindrical workpiece. A mechanism similar to the anti-slip pad 15 can also be installed on the inner side of the clamping plate 7 to increase contact stability and squeeze and position the end of the cylindrical workpiece. The laser ranging probe 8 works continuously to measure the distance between the center of the outer side of the clamping plate 7 and the inner wall of the equipment cavity 4, and rotates the locking bolt 13 to extend out of the positioning hole 14. The end of the cylindrical workpiece is squeezed and positioned by the anti-slip pad 15, and then the horizontal lathe can be started to process the cylindrical workpiece.
[0028] The laser rangefinder 8 also serves to monitor the wear condition of the clamping plate 7. After long-term use, the wear degree of the clamping plate 7 can be judged by the data change of the laser rangefinder 8 when the clamping plate 7 contacts and clamps a workpiece of the same size. The extension length of the hydraulic rod 6 connected to the corresponding clamping plate 7 during operation can be adjusted. This is the working principle of the clamping and positioning device used in this horizontal lathe.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A clamping and positioning device for horizontal lathe, comprising a clamping seat (1), characterized in that: The clamping base (1) is provided with a mounting post (2) at one end and a mounting hole (3) at the other end. The clamping base (1) is provided with an equipment cavity (4) in the middle. The mounting hole (3) communicates with the equipment cavity (4). The clamping base (1) is provided with a comprehensive cavity (5) on the inner side near the mounting post (2). A hydraulic rod (6) is fixed on the inner wall of the equipment cavity (4). A clamping plate (7) is installed at the end of the hydraulic rod (6). A laser ranging probe (8) is installed on the clamping plate (7) away from the center of the clamping base (1). A stabilizing post (9) is fixed at one end of the clamping plate (7). The stabilizing column (9) is attached to one end of the inner wall of the track groove (10). The track groove (10) is opened on the inner vertical surface of the equipment cavity (4). A centering laser emitter (11) is fixed at the center of the inner vertical surface of the equipment cavity (4). A fixing column (12) is welded to the outer side of the other end of the clamping seat (1). A locking bolt (13) is installed in the fixing column (12). The end of the locking bolt (13) is connected to the positioning hole (14). The positioning hole (14) is opened on the side wall of the other end of the clamping seat (1). An anti-slip pad (15) is fixed to the end of the locking bolt (13).
2. A chucking and positioning device for a horizontal lathe according to claim 1, characterized in that: The overall frontal cross-sectional shape of the mounting hole (3) and the equipment cavity (4) is "convex", and the center of the mounting hole (3) and the center of the equipment cavity (4) are on the same horizontal straight line.
3. The clamping and positioning device for a horizontal lathe according to claim 1, characterized in that: The hydraulic rods (6) are symmetrically distributed about the center of the clamping plate (7), and the center of the clamping plate (7) and the center of the laser ranging probe (8) are on the same straight line passing through the center of the equipment cavity (4).
4. A chucking and positioning device for a horizontal lathe according to claim 1, characterized in that: The clamping plates (7) are distributed at equal angles with respect to the center of the equipment cavity (4), and the clamping plates (7) are configured as arc-shaped plate structures.
5. A chucking and positioning device for a horizontal lathe according to claim 1, characterized in that: The stabilizing column (9) and the track groove (10) are slidably connected, and the center of the track groove (10) and the center of the clamping plate (7) are on the same straight line passing through the center of the equipment cavity (4).
6. A chucking and positioning device for a horizontal lathe according to claim 1, characterized in that: The fixing post (12), locking bolt (13) and positioning hole (14) are all distributed at equal angles about the center of the mounting hole (3). The locking bolt (13) is threaded to the inner wall of the fixing post (12) and the positioning hole (14).