Rapid tailstock locking device of lathe
By designing a tailstock quick-locking device, and utilizing mounting components and a laser positioner to achieve rapid locking and precise positioning, the problem of severe wear on the locking mechanism is solved, and maintenance efficiency and machining accuracy are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHANGJIAGANG SAMUTE HYDRAULIC TECH CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-12
AI Technical Summary
The locking mechanism of the existing lathe tailstock quick-locking device is severely worn, resulting in low maintenance and replacement efficiency, which affects machining accuracy and efficiency.
A tailstock quick-locking device was designed, comprising a mounting component, a locking bracket, a locking assembly, and an adjustment assembly. By moving the locking bracket on the lathe slide rail and adjusting the height of the laser positioner, quick locking and precise positioning are achieved, reducing wear and errors.
It improves the maintenance and replacement efficiency of the locking mechanism, reduces wear, enhances machining accuracy and operational efficiency, and avoids errors caused by traditional experience-based adjustments.
Smart Images

Figure CN224222754U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lathe parts technology, and in particular to a quick locking device for the tailstock of a lathe. Background Technology
[0002] Lathes are widely used machine tools capable of turning, drilling, and tapping. They use a cutting tool to feed in the transverse and longitudinal directions to machine rotating workpieces. The tailstock is an essential part of a lathe, usually installed at one end. The tailstock is a core functional component that works with the headstock to support the workpiece or clamp the tool. During machining, the tailstock needs to be locked in a fixed position to provide support.
[0003] In actual use, the tailstock quick-locking device of existing lathes usually has the locking mechanism located at the bottom of the tailstock, allowing it to slide within the lathe track. Over time, it wears out and needs to be replaced, which is not conducive to improving the efficiency of maintenance and replacement of the locking mechanism. Utility Model Content
[0004] The purpose of this invention is to provide a quick locking device for the tailstock of a lathe, thereby solving the problem mentioned in the background art of inconvenience in improving the efficiency of maintenance and replacement of the locking mechanism.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-locking device for a lathe tailstock, comprising a tailstock body slidably connected to a matching lathe slide rail, a mounting assembly fixedly connected to one side of the tailstock body, a locking bracket fixedly connected to one end of the mounting assembly, a locking adjustment hole provided on one side of the locking bracket, a locking component rotatably connected inside the locking adjustment hole, a connecting assembly fixedly connected to the top of the tailstock body, a fixing rod fixedly connected to the top surface of the connecting assembly, an adjusting assembly fixedly connected to the top of the fixing rod, a limit tube threadedly connected to the top of the adjusting assembly, and a laser positioner body inserted into the limit tube.
[0006] The installation components include installation connectors, connecting blocks, and installation bolts;
[0007] The locking assembly includes a rotating component, a support spring, a connecting column, a pressure plate, and a wrench;
[0008] The adjustment assembly includes adjustment component A, assembly component, adjustment component B, and double-layer locking cap.
[0009] As a further embodiment of this utility model, the mounting assembly includes a mounting connector fixedly connected to one side of the tailstock body. A connecting block is inserted into the interior of the mounting connector. Mounting holes are provided on the top surfaces of both the mounting connector and the connecting block. Mounting bolts are threaded into the interior of the mounting holes.
[0010] As a further embodiment of this utility model, the locking assembly includes a rotating component rotatably connected inside the locking adjustment hole, a supporting spring sleeved on the surface of the rotating component, a pressure plate inserted into one end of the rotating component via a connecting post, and a wrench fixedly connected to the surface of the other end of the rotating component.
[0011] As a further embodiment of this utility model, the surface of the connecting column is provided with a threaded groove, and a locking element is engaged inside the threaded groove.
[0012] As a further embodiment of this utility model, the connecting component includes a snap-fit seat fixedly connected to the top of the tailstock body. A snap-fit element is snapped onto the surface of the snap-fit seat. Both the snap-fit seat and the snap-fit element have connecting holes on their surfaces, and a connecting bolt is threaded into the internal part of the connecting hole.
[0013] As a further embodiment of this utility model, the adjusting assembly includes an adjusting member A fixedly connected to the top of the fixed rod. An assembly is rotatably sleeved on the surface of the adjusting member A. An adjusting member B is rotatably connected to the inside of one end of the assembly. Both the adjusting member A and the adjusting member B are threadedly connected to one end with a double-layer locking cap for easy locking.
[0014] As a further embodiment of this utility model, the outer threaded connection of the double-layer locking cap is a limiting ring, and one end of the limiting ring is fixedly installed on one side of the assembly.
[0015] As a further embodiment of this utility model, fixing holes are provided on both sides of the surface of the limiting tube, and a fixing bolt is threaded into the inside of the fixing hole, and a stabilizing spring is sleeved on the surface of the fixing bolt.
[0016] This utility model provides a quick locking device for the tailstock of a lathe, which has the following advantages:
[0017] 1. The tailstock quick-locking device of this lathe, through the arrangement of mounting components, locking brackets, and locking components, allows for easy operation. During use, depending on the length of the workpiece, turning the wrench causes the rotating component to rotate, retracting the pressure plate. After moving to a fixed position, turning the wrench in the opposite direction causes the pressure plate to press against the lathe slide rail. The support spring increases the support force, reducing the impact caused by the tailstock during workpiece machining. Furthermore, when the locking bracket needs replacement, removing the mounting bolt allows the tailstock body to be separated from the locking bracket, achieving quick locking at a fixed position. This avoids the need to remove the entire tailstock from the machine tool for replacement due to wear and tear when the locking mechanism is located at the bottom of the tailstock, thus improving the efficiency of maintenance and replacement of the locking mechanism.
[0018] 2. The tailstock quick-locking device of this lathe, through the setting of the adjusting components, fixed pressure bolts and laser positioner body, allows the height of the assembly to be adjusted according to the shape of the workpiece during use, thereby changing the height of the laser positioner body. This enables the laser to assist in positioning special reference points, avoiding processing scrap. At the same time, it also allows for direct observation of the alignment between the tailstock and the spindle or workpiece, avoiding the errors of traditional experience-based adjustments, and significantly improving operating accuracy and efficiency. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the installation component structure of this utility model;
[0021] Figure 3 This is a schematic diagram of the locking assembly structure of this utility model;
[0022] Figure 4 This is a schematic diagram of the adjustment component structure of this utility model.
[0023] In the diagram: 1. Tailstock body; 2. Mounting assembly; 201. Mounting connector; 202. Connecting block; 203. Mounting bolt; 3. Locking bracket; 4. Locking assembly; 401. Rotating component; 402. Support spring; 403. Connecting column; 404. Pressure plate; 405. Wrench; 5. Connecting assembly; 501. Snap-fit seat; 502. Clip; 503. Connecting bolt; 6. Fixing rod; 7. Adjusting assembly; 701. Adjusting component A; 702. Assembly component; 703. Adjusting component B; 704. Double-layer locking cap; 8. Limiting tube; 9. Laser positioner body; 10. Locking component; 11. Fixing pressure bolt; 12. Stabilizing spring. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0025] Please see Figures 1 to 4 This utility model provides a technical solution: a tailstock quick-locking device for a lathe, comprising a tailstock body 1, which is slidably connected to a matching slide rail of the lathe. A mounting component 2 is fixedly connected to one side of the tailstock body 1, and a locking bracket 3 is fixedly connected to one end of the mounting component 2. A locking adjustment hole is provided on one side of the locking bracket 3, and a locking component 4 is rotatably connected inside the locking adjustment hole. A connecting component 5 is fixedly connected to the top of the tailstock body 1, and a fixing rod 6 is fixedly connected to the top surface of the connecting component 5. An adjusting component 7 is fixedly connected to the top of the fixing rod 6, and a limit tube 8 is threadedly connected to the top of the adjusting component 7. A laser positioner body 9 is inserted into the limit tube 8.
[0026] Mounting component 2 includes mounting connector 201, connecting block 202 and mounting bolt 203;
[0027] The locking assembly 4 includes a rotating part 401, a support spring 402, a connecting column 403, a pressure plate 404, and a wrench 405. With the installation assembly 2, the locking bracket 3, and the locking assembly 4, during use, depending on the length of the workpiece, the wrench 405 is turned, the rotating part 401 rotates, and the pressure plate 404 retracts. After moving to a fixed position, the wrench 405 is turned in the opposite direction, and the pressure plate 404 presses against the lathe slide rail. The support spring 402 increases the support force and reduces the impact caused by the tailstock during workpiece processing. In addition, when the locking bracket 3 needs to be replaced, the mounting bolt 203 is removed, and the tailstock body 1 can be separated from the locking bracket 3, thereby achieving quick locking in a fixed position. This avoids the locking mechanism being located at the bottom of the tailstock, which would require long-term wear and replacement, and would require the entire tailstock to be disassembled from the machine tool. This helps to improve the efficiency of maintenance and replacement of the locking mechanism.
[0028] The adjustment component 7 includes an adjustment component A701, an assembly component 702, an adjustment component B703, and a double-layer locking cap 704. Through the setting of the adjustment component 7, the fixing bolt 11, and the laser positioner body 9, the height of the assembly component 702 is adjusted according to the shape of the workpiece during use, thereby changing the height of the laser positioner body 9. This allows the laser to assist in positioning special reference points, avoiding processing scrap. At the same time, the alignment of the tailstock with the spindle or workpiece can be directly observed, avoiding the errors of traditional adjustment based on experience, and significantly improving operating accuracy and efficiency.
[0029] The mounting component 2 includes a mounting connector 201 fixedly connected to one side of the tailstock body 1. A connecting block 202 is inserted into the mounting connector 201. Mounting holes are provided on the top surfaces of both the mounting connector 201 and the connecting block 202. Mounting bolts 203 are threaded into the mounting holes. The mounting component 2 facilitates the installation, disassembly, and locking of the bracket 3.
[0030] The locking assembly 4 includes a rotating part 401 rotatably connected inside the locking adjustment hole. A support spring 402 is sleeved on the surface of the rotating part 401. A pressure plate 404 is inserted into one end of the rotating part 401 through a connecting post 403. A wrench 405 is fixedly connected to the surface of the other end of the rotating part 401. The locking assembly 4 restricts the movement of the tailstock body 1 and locks it quickly.
[0031] The surface of the connecting column 403 is provided with a threaded groove, and a locking member 10 is engaged inside the threaded groove. The locking member 10 serves to fix the column.
[0032] The connecting component 5 includes a snap-fit seat 501 fixedly connected to the top of the tailstock body 1. A snap-fit piece 502 is snapped onto the surface of the snap-fit seat 501. Both the snap-fit seat 501 and the snap-fit piece 502 have connecting holes. A connecting bolt 503 is threaded into the internal of the connecting hole. The connecting component 5 facilitates the installation of the laser positioner body 9.
[0033] The adjustment assembly 7 includes an adjustment component A701 fixedly connected to the top of the fixed rod 6. An assembly component 702 is rotatably sleeved on the surface of the adjustment component A701. An adjustment component B703 is rotatably connected to the inside of one end of the assembly component 702. Both the adjustment component A701 and the adjustment component B703 are threadedly connected to one end of a double-layer locking cap 704. The adjustment assembly 7 is designed to adjust the height of the laser positioner body 9.
[0034] The outer thread of the double-layer locking cap 704 is connected to a limit ring. One end of the limit ring is fixedly installed on one side of the assembly 702. The double-layer locking cap 704 serves to fix the adjusting component A701 and the adjusting component B703.
[0035] Fixing holes are provided on both sides of the surface of the limiting tube 8. The fixing holes are threaded with fixing bolts 11. A stabilizing spring 12 is sleeved on the surface of the fixing bolts 11. The fixing bolts 11 serve to fix the laser positioner body 9.
[0036] In this invention, the working steps of the device are as follows:
[0037] First step: When using it, adjust the height of the assembly 702 according to the shape of the workpiece to change the height of the laser positioner body 9;
[0038] The second step: When using it, depending on the length of the workpiece, turn the wrench 405. The rotating part 401 rotates and causes the pressure plate 404 to retract. After moving to a fixed position, turn the wrench 405 in the opposite direction. The pressure plate 404 presses against the lathe slide rail. The support spring 402 increases the support force and reduces the impact caused by the tailstock during the workpiece processing. In addition, when the locking bracket 3 needs to be replaced, remove the mounting bolt 203 to separate the tailstock body 1 from the locking bracket 3.
[0039] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.
[0040] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.
[0041] 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 quick-locking device for a tailstock of a lathe, comprising a tailstock body (1), wherein the tailstock body (1) is slidably connected to a slide rail of a matching lathe, characterized in that: A mounting assembly (2) is fixedly connected to one side of the tailstock body (1). A locking bracket (3) is fixedly connected to one end of the mounting assembly (2). A locking adjustment hole is provided on one side of the locking bracket (3). A locking assembly (4) is rotatably connected inside the locking adjustment hole. A connecting assembly (5) is fixedly connected to the top of the tailstock body (1). A fixing rod (6) is fixedly connected to the top surface of the connecting assembly (5). An adjusting assembly (7) is fixedly connected to the top of the fixing rod (6). A limit tube (8) is threadedly connected to the top of the adjusting assembly (7). A laser positioner body (9) is inserted into the limit tube (8). The mounting component (2) includes a mounting connector (201), a connecting block (202), and a mounting bolt (203); The locking assembly (4) includes a rotating part (401), a support spring (402), a connecting post (403), a pressing plate (404), and a wrench (405). The adjustment assembly (7) includes an adjustment component A (701), an assembly component (702), an adjustment component B (703), and a double-layer locking cap (704).
2. The tailstock quick-locking device for a lathe according to claim 1, characterized in that: The mounting assembly (2) includes a mounting connector (201) fixedly connected to one side of the tailstock body (1). A connecting block (202) is inserted into the mounting connector (201). Mounting holes are provided on the top surfaces of both the mounting connector (201) and the connecting block (202). A mounting bolt (203) is threaded into the mounting hole.
3. The tailstock quick-locking device for a lathe according to claim 1, characterized in that: The locking assembly (4) includes a rotating part (401) rotatably connected inside the locking adjustment hole. A support spring (402) is sleeved on the surface of the rotating part (401). A pressure plate (404) is inserted into one end of the rotating part (401) through a connecting post (403). A wrench (405) is fixedly connected to the surface of the other end of the rotating part (401).
4. The tailstock quick-locking device for a lathe according to claim 1, characterized in that: The surface of the connecting column (403) is provided with a threaded groove, and a locking element (10) is engaged inside the threaded groove.
5. A quick-locking device for the tailstock of a lathe according to claim 1, characterized in that: The connecting component (5) includes a snap-fit seat (501) fixedly connected to the top of the tailstock body (1). A clip (502) is snapped onto the surface of the snap-fit seat (501). Both the snap-fit seat (501) and the clip (502) have connecting holes on their surfaces. A connecting bolt (503) is threaded into the inside of the connecting hole.
6. The tailstock quick-locking device for a lathe according to claim 1, characterized in that: The adjustment assembly (7) includes an adjustment component A (701) fixedly connected to the top of the fixed rod (6). An assembly component (702) is rotatably sleeved on the surface of the adjustment component A (701). An adjustment component B (703) is rotatably connected to the inside of one end of the assembly component (702). A double-layer locking cap (704) is threaded to one end of both the adjustment component A (701) and the adjustment component B (703).
7. A quick-locking device for the tailstock of a lathe according to claim 6, characterized in that: The outer threaded connection of the double-layer locking cap (704) is a limiting ring, one end of which is fixedly installed on one side of the assembly (702).
8. A quick-locking device for the tailstock of a lathe according to claim 1, characterized in that: The limiting tube (8) has fixing holes on both sides of its surface. The fixing holes are threaded with fixing bolts (11), and the fixing bolts (11) are fitted with stabilizing springs (12).