Meter lathe with safe clamping structure
By adopting a safe clamping structure in the instrument lathe and using components such as springs and clamping blocks to prevent the handwheel from rotating, the problem of loose clamping chucks is solved, and the safety and accuracy of workpiece clamping is improved.
Patent Information
- Application Number
- CN202422133633.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-30
AI Technical Summary
The clamping chucks of existing instrument lathes are prone to loosening during high-speed rotation or processing, causing the workpiece to slip or loosen, affecting the processing accuracy and safety.
An instrument lathe with a safe clamping structure is adopted. The fixing block and the limiting block are pushed through the second spring and the first spring to fit closely with the handwheel. The third spring is used to snap the clamping block into the limiting block to prevent the handwheel from rotating. Combined with the telescopic rod and pulling block, pushing block and other structures, the handwheel limit effect is ensured.
Effectively prevent the handwheel from rotating during high-speed rotation or processing, improve the clamping safety performance of the clamping chuck to the workpiece, and ensure processing accuracy and safety.
Smart Images
Figure CN223070452U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of instrument lathes, in particular to an instrument lathe with a safety clamping structure. Background Technique
[0002] An instrument lathe is a machine tool specifically used for processing small workpieces, usually belonging to the category of simple horizontal lathes. The maximum workpiece processing diameter is generally below 250mm. It has the characteristics of high precision, high stability and high reliability, and is a very ideal high-efficiency device in the hardware machining industry. The instrument lathe can process workpieces of various shapes and sizes, including functions such as external circle, internal circle, cutting, end face, grooving, turning taper, drilling, reaming, tapping, milling, grinding, etc., which makes the instrument lathe widely used in the production and processing of various parts.
[0003] The fixture of an instrument lathe is generally used to clamp the workpiece and fix it at a specific position on the lathe for precise turning, milling, drilling and other machining operations. The fixture can accurately position the workpiece at the predetermined position on the lathe to ensure the accurate relative position relationship between the workpiece, the tool and the machine tool, which helps to ensure the machining accuracy and makes the machined parts meet the design requirements. In an instrument lathe, common fixture types include external clamping quick-installation fixtures, three-jaw chucks, four-jaw chucks, etc.
[0004] In the prior art, for the clamping chuck used in an instrument lathe, the three jaws or four jaws can generally be rotated and adjusted by a handwheel. When the chuck rotates and drives the workpiece to rotate, during high-speed rotation or the machining process, the position where the chuck is connected to the handwheel is prone to looseness, which easily leads to the looseness of the clamping parts clamping the workpiece, and then leads to the slippage or looseness of the workpiece. Therefore, it is necessary to propose an instrument lathe with a safety clamping structure to solve the above problems. Content of the Utility Model
[0005] The purpose of the utility model is to provide an instrument lathe with a safety clamping structure to solve the problems put forward in the above background technique.
[0006] To solve the above technical problems, the technical solution adopted by the utility model is:
[0007] An instrument lathe with a safety clamping structure includes a frame and an adjusting mechanism. An adjusting mechanism for lathe machining is arranged inside the frame; on the top of the frame on one side of the adjusting mechanism, a headstock is fixedly installed. On the other side of the headstock, a clamping chuck is rotatably connected. A handwheel is rotatably installed on the top of the clamping chuck. On the top of the clamping chuck at one end of the handwheel, a fixing plate is fixedly installed. A slide rod penetrates through the inside of the fixing plate. On the surface of the other end of the slide rod, a fixing block is fixedly installed. On the surface of the other end of the fixing block, a second rubber pad is attached. The second rubber pad is in close fit with the surface of the outer periphery of the handwheel at one end. On the surface of one end of the slide rod, a partition plate is fixedly installed. The surface of the other end of the partition plate on the periphery of the slide rod is connected to one end surface of the fixing plate through a second spring. On the top of the clamping chuck at the other end of the handwheel, a limiting plate is fixedly installed. A movable rod penetrates through the inside of the limiting plate. The movable rod extends to one end of the limiting plate and a limiting block is fixedly installed at this end. On the surface of one end of the limiting block, a first rubber pad is attached. The first rubber pad is in close fit with the surface of the outer periphery of the handwheel at the other end. On the surface of the other end of the movable rod, a baffle plate is fixedly installed. The surface of one end of the baffle plate on the periphery of the movable rod is connected to the other end surface of the fixing plate through a first spring.
[0008] Through the elastic force of the second spring itself, a pulling force towards the other end can be formed on the partition plate, and at the same time, the slide rod is driven to move towards the other end, and the fixing block is pushed, so that the second rubber pad is in close fit with and extruded against the outer surface of the handwheel. At the same time, through the elastic force of the first spring itself, a pulling force towards one end can be formed on the baffle plate, and at the same time, the movable rod is driven to move towards one end, and the limiting block is pushed towards one end, so that the first rubber pad is in close fit with and extruded against the outer periphery surface of the handwheel. Thus, the handwheel can be limited, and further, the handwheel can be effectively prevented from rotating during the high-speed rotation or machining process following the clamping chuck, thereby improving the clamping effect of the clamping chuck on the workpiece and improving the safety performance of the clamping.
[0009] A further improvement of the technical solution of the present utility model lies in that: a third spring is fixedly installed inside the fixing block. The third spring extends to the other side of the fixing block and a disc is fixedly installed. On the other side of the disc, a connecting piece is rotatably connected. The other end of the connecting piece is fixedly installed with an adjusting plate. On one side of the adjusting plate, a clamping block is fixedly connected. The clamping block is engaged with the inside of the limiting block.
[0010] Adopting the above technical solution, in this solution, through the elastic force of the third spring itself, a pulling force towards one side can be formed on the disc, and at the same time, the surface of one side of the adjusting plate is made to fit with the surfaces of the other sides of the fixing block and the limiting block, so that the clamping block can be inserted into the inside of the limiting block, thereby connecting the fixing block and the limiting block, and further preventing the fixing block and the limiting block from moving towards the two ends respectively, and further improving the effect of limiting the handwheel.
[0011] A further improvement of the technical solution of the present utility model lies in that: a telescopic rod is fixedly installed inside the fixed block inside the third spring, and the surface of the other side of the telescopic rod is fixedly connected to the surface of one side of the disc.
[0012] Adopting the above technical solution, in this solution, by installing the telescopic rod, the movement track of the disc can be guided and limited, ensuring that the third spring can drive the disc to move linearly, so as to facilitate the insertion of the clamping block into the inside of the limiting block.
[0013] A further improvement of the technical solution of the present utility model lies in that: a pulling block is fixedly installed on one side surface of the adjusting plate.
[0014] Adopting the above technical solution, in this solution, by installing the pulling block, the contact area between the operator's hand and the adjusting plate can be enlarged, so as to facilitate pulling the adjusting plate to the other side, separating the clamping block from the inside of the limiting block. By rotating the connecting piece 90 degrees downward, the position of the adjusting plate away from the other side of the handwheel is adjusted, preventing the third spring from pulling the clamping block again and making it fit with the surface of the handwheel, which affects the rotation operation of the handwheel.
[0015] A further improvement of the technical solution of the present utility model lies in that: a blocking block is fixedly installed on the other side surface of the disc at the top of the connecting piece, and the surface of the bottom of the blocking block is attached to the surface of the top of the connecting piece.
[0016] Adopting the above technical solution, in this solution, by installing the blocking block, after the connecting piece is attached to the bottom surface of the blocking block, it can be ensured that the clamping block moves to a position where it is on the same horizontal line as the card slot of the limiting block, thus facilitating the operator to quickly align the clamping block with the card slot inside the limiting block.
[0017] A further improvement of the technical solution of the present utility model lies in that: a pushing block is fixedly installed on the top surface of the fixed block.
[0018] Adopting the above technical solution, in this solution, by installing the pushing block, the contact area between the operator's hand and the fixed block can be enlarged, so as to facilitate the operator to push the fixed block to one end, separating the second rubber pad from the surface of the handwheel.
[0019] A further improvement of the technical solution of the present utility model lies in that: a pushing block is fixedly connected to the top surface of the limiting block.
[0020] Adopting the above technical solution, in this solution, by installing the pushing block, the contact area between the operator's hand and the limiting block can be enlarged, so as to facilitate the operator to push the limiting block to the other end, separating the first rubber pad from the outer surface of the handwheel.
[0021] Due to the adoption of the above technical solution, the technical progress achieved by the present utility model compared with the prior art is:
[0022] 1. The utility model provides a bench lathe with a safety clamping structure. By installing the second spring and the first spring, the fixed block and the limit block can be respectively pushed, so that the second rubber pad and the first rubber pad are both in close contact with and squeeze each other on the outer surface of the handwheel, thereby being able to limit the handwheel. Furthermore, it can effectively prevent the handwheel from rotating during the high-speed rotation or processing following the clamping chuck, improving the safety performance of the clamping chuck for clamping the workpiece.
[0023] 2. The utility model provides a bench lathe with a safety clamping structure. By using the third spring, the clamping block can be clamped into the inside of the limit block, further preventing the fixed block and the limit block from moving towards both ends respectively, thereby further improving the effect of limiting the handwheel and enhancing the safety performance of the clamping chuck for clamping the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] The following further describes the present utility model with reference to the drawings.
[0025] Figure 1 is a three-dimensional view of the present utility model;
[0026] Figure 2 is a partial structural schematic diagram of the clamping chuck of the present utility model;
[0027] Figure 3 is of the present utility model Figure 2 enlarged structural schematic diagram at A in;
[0028] Figure 4 is a partial structural schematic diagram of the cross-section of the fixing plate of the present utility model;
[0029] Figure 5 is a partial exploded structural schematic diagram of the cross-section of the fixed block of the present utility model.
[0030] In the figure: 1, frame; 2, headstock; 3, adjusting mechanism; 4, clamping chuck; 5, handwheel; 6, fixing plate; 7, limit block; 8, fixed block; 9, adjusting plate; 10, first rubber pad; 11, second rubber pad; 12, pushing block; 13, pushing block; 14, disc; 15, connecting piece; 16, clamping block; 17, movable rod; 18, first spring; 19, baffle; 20, sliding rod; 21, second spring; 22, partition; 23, pulling block; 24, stop block; 25, third spring; 26, telescopic rod; 27, limit plate. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0031] The following further describes the present utility model in detail with reference to the embodiments:
[0032] Embodiment 1
[0033] As Figure 1 , Figure 2 and Figure 4As shown in the figure, the utility model provides a bench lathe with a safety clamping structure, including a frame 1 and an adjusting mechanism 3. An adjusting mechanism 3 for lathe processing is arranged inside the frame 1. On the top of the frame 1 on one side of the adjusting mechanism 3, a headstock 2 is fixedly installed. On the other side of the headstock 2, a clamping chuck 4 is rotatably connected. On the top of the clamping chuck 4, a handwheel 5 is rotatably installed. On the top of the clamping chuck 4 at one end of the handwheel 5, a fixing plate 6 is fixedly installed. A slide bar 20 penetrates through the inside of the fixing plate 6. On the surface of the other end of the slide bar 20, a fixing block 8 is fixedly installed. On the surface of the other end of the fixing block 8, a second rubber pad 11 is attached. The second rubber pad 11 is in close fit with the surface of the periphery of one end of the handwheel 5. On the surface of one end of the slide bar 20, a partition plate 22 is fixedly installed. The surface of the other end of the partition plate 22 on the periphery of the slide bar 20 is connected to the surface of one end of the fixing plate 6 by a second spring 21. On the top of the clamping chuck 4 at the other end of the handwheel 5, a limiting plate 27 is fixedly installed. An active rod 17 penetrates through the inside of the limiting plate 27. The active rod 17 extends to one end of the limiting plate 27 and a limiting block 7 is fixedly installed. On the surface of one end of the limiting block 7, a first rubber pad 10 is attached. The first rubber pad 10 is in close fit with the surface of the periphery of the other end of the handwheel 5. On the surface of the other end of the active rod 17, a baffle 19 is fixedly installed. The surface of one end of the baffle 19 on the periphery of the active rod 17 is connected to the surface of the other end of the fixing plate 6 by a first spring 18.
[0034] In this embodiment, through the elastic force of the second spring 21 itself, a pulling force towards the other end can be formed on the partition plate 22, while driving the slide bar 20 to move towards the other end, and pushing the fixing block 8, so that the second rubber pad 11 is in close fit with the outer surface of the handwheel 5 and they are mutually extruded. At the same time, through the elastic force of the first spring 18 itself, a pulling force towards one end can be formed on the baffle 19, while driving the active rod 17 to move towards one end, and pushing the limiting block 7 towards one end, so that the first rubber pad 10 is in close fit with the outer peripheral surface of the handwheel 5 and they are mutually extruded. Thus, the handwheel 5 can be limited, and further, the handwheel 5 can be effectively prevented from rotating during the high-speed rotation or processing following the clamping chuck 4, thereby improving the clamping effect of the clamping chuck 4 on the workpiece and improving the safety performance of the clamping.
[0035] Embodiment 2
[0036] As Figure 3 、 Figure 4 and Figure 5As shown, on the basis of Embodiment 1, the present utility model provides a technical solution: Preferably, a third spring 25 is fixedly installed inside the fixing block 8, and the third spring 25 extends to the other side of the fixing block 8 and is fixedly installed with a disc 14. The other side of the disc 14 is rotatably connected with a connecting piece 15, and the other end of the connecting piece 15 is fixedly installed with an adjusting plate 9. One side of the adjusting plate 9 is fixedly connected with a clamping block 16, and the clamping block 16 is engaged with the inside of the limiting block 7. A telescopic rod 26 is fixedly installed inside the fixing block 8 inside the third spring 25, and the surface of the other side of the telescopic rod 26 is fixedly connected with the surface of one side of the disc 14.
[0037] In this embodiment, the elastic force of the third spring 25 itself can form a pulling force on the disc 14 towards one side, and at the same time, the surface of one side of the adjusting plate 9 is made to fit with the surfaces of the other sides of the fixing block 8 and the limiting block 7, so that the clamping block 16 can be inserted into the inside of the limiting block 7, thereby enabling the connection between the fixing block 8 and the limiting block 7, further preventing the fixing block 8 and the limiting block 7 from moving towards both ends respectively, and further improving the effect of limiting the handwheel 5; by installing the telescopic rod 26, the movement track of the disc 14 can be guided and limited, ensuring that the third spring 25 can drive the disc 14 to move in a straight line, so as to facilitate inserting the clamping block 16 into the inside of the limiting block 7.
[0038] Embodiment 3
[0039] As Figure 3 、 Figure 4 and Figure 5 shown, on the basis of Embodiment 2, the present utility model provides a technical solution: Preferably, a pulling block 23 is fixedly installed on one side surface of the adjusting plate 9, and a stop block 24 is fixedly installed on the other side surface of the disc 14 at the top of the connecting piece 15, and the surface of the bottom of the stop block 24 is in contact with the surface of the top of the connecting piece 15.
[0040] In this embodiment, by installing the pulling block 23, the contact area between the operator's hand and the adjusting plate 9 can be enlarged, so as to facilitate pulling the adjusting plate 9 towards the other side, separating the clamping block 16 from the inside of the limiting block 7. By rotating the connecting piece 15 ninety degrees towards the bottom, the adjusting plate 9 is moved away from the position on the other side of the handwheel 5, preventing the third spring 25 from pulling the clamping block 16 again and making it fit with the surface of the handwheel 5, which affects the rotation operation of the handwheel 5; by installing the stop block 24, after the connecting piece 15 is in contact with the surface of the bottom of the stop block 24, it can be ensured that the clamping block 16 moves to a position where it is on the same horizontal line as the card slot of the limiting block 7, so as to facilitate the operator to quickly align the clamping block 16 with the card slot inside the limiting block 7.
[0041] Embodiment 4
[0042] As Figure 1 、 Figure 3 andFigure 5 As shown, on the basis of Embodiment 3, the present utility model provides a technical solution: Preferably, a push block 13 is fixedly installed on the top surface of the fixed block 8, and a push block 12 is fixedly connected to the top surface of the limit block 7.
[0043] In this embodiment, by installing the push block 13, the contact area between the operator's hand and the fixed block 8 can be enlarged, so as to facilitate the operator to push the fixed block 8 towards one end, causing the second rubber pad 11 to separate from the surface of the handwheel 5; by installing the push block 12, the contact area between the operator's hand and the limit block 7 can be enlarged, so as to facilitate the operator to push the limit block 7 towards the other end, causing the first rubber pad 10 to separate from the outer surface of the handwheel 5, thereby facilitating the adjustment and use of the handwheel 5.
[0044] Next, specifically describe the working principle of the lathe for measuring instruments with a safety clamping structure.
[0045] As Figures 1 - 5 shown, the second spring 21 can be used to push the partition plate 22 towards the other end, and at the same time drive the slide rod 20 and the fixed block 8 to move towards the other end, so that the second rubber pad 11 is in close contact with the outer surface of the handwheel 5. At the same time, the first spring 18 can be used to push the baffle plate 19 towards one end, and at the same time drive the movable rod 17 and the limit block 7 to move towards one end, so that the first rubber pad 10 is in close contact with the outer peripheral surface of the handwheel 5, thereby realizing the limitation of the handwheel 5. And the third spring 25 can drive the disc 14 and the adjusting plate 9 to move to one side, and then the clamping block 16 can be inserted into the inside of the limit block 7, further limiting the positions of the limit block 7 and the fixed block 8 on the periphery of the handwheel 5, improving the limiting effect on the handwheel 5. During the high-speed rotation or processing of the spindle box 2 driving the clamping chuck 4 and the workpiece, it can effectively prevent the handwheel 5 from rotating, thereby improving the clamping effect of the clamping chuck 4 on the workpiece and improving the clamping safety performance.
[0046] The above has generally described the present utility model in detail. However, based on the present utility model, some modifications or improvements can be made, which are obvious to those of ordinary skill in the art. Therefore, the modifications or improvements made without departing from the spirit of the present utility model are all within the protection scope of the present utility model.
Claims
1. An instrument lathe with a safety clamping structure, comprising a frame (1) and an adjusting mechanism (3), wherein an adjusting mechanism (3) for lathe machining is arranged inside the frame (1); characterized in that: On the top of the frame (1) on one side of the adjusting mechanism (3), a headstock (2) is fixedly installed. On the other side of the headstock (2), a clamping chuck (4) is rotatably connected. On the top of the clamping chuck (4), a handwheel (5) is rotatably installed. On the top of the clamping chuck (4) at one end of the handwheel (5), a fixing plate (6) is fixedly installed. A slide bar (20) penetrates through the inside of the fixing plate (6). On the surface of the other end of the slide bar (20), a fixing block (8) is fixedly installed. On the surface of the other end of the fixing block (8), a second rubber pad (11) is attached. The second rubber pad (11) is in close contact with the surface of the periphery of one end of the handwheel (5). On the surface of one end of the slide bar (20), a partition plate (22) is fixedly installed. On the surface of the other end of the partition plate (22) on the periphery of the slide bar (20), it is connected to the surface of one end of the fixing plate (6) by a second spring (21). On the top of the clamping chuck (4) at the other end of the handwheel (5), a limiting plate (27) is fixedly installed. An activity rod (17) penetrates through the inside of the limiting plate (27). The activity rod (17) extends to one end of the limiting plate (27) and a limiting block (7) is fixedly installed. On the surface of one end of the limiting block (7), a first rubber pad (10) is attached. The first rubber pad (10) is in close contact with the surface of the periphery of the other end of the handwheel (5). On the surface of the other end of the activity rod (17), a baffle plate (19) is fixedly installed. On the surface of one end of the baffle plate (19) on the periphery of the activity rod (17), it is connected to the surface of the other end of the fixing plate (6) by a first spring (18).
2. The instrument lathe with a safety clamping structure according to claim 1, wherein: Inside the fixing block (8), a third spring (25) is fixedly installed. The third spring (25) extends to the other side of the fixing block (8) and a disc (14) is fixedly installed. On the other side of the disc (14), a connecting piece (15) is rotatably connected. The other end of the connecting piece (15) is fixedly installed with an adjusting plate (9). On one side of the adjusting plate (9), a clamping block (16) is fixedly connected. The clamping block (16) is engaged with the inside of the limiting block (7).
3. The instrument lathe with a safety clamping structure according to claim 2, characterized in that: Inside the third spring (25), inside the fixing block (8), a telescopic rod (26) is fixedly installed. On the surface of the other side of the telescopic rod (26), it is fixedly connected to the surface of one side of the disc (14).
4. The instrument lathe with a safety clamping structure according to claim 3, wherein: On one side surface of the adjusting plate (9), a pulling block (23) is fixedly installed.
5. The instrument lathe with a safety clamping structure according to claim 4, characterized in that: On the other side surface of the disc (14) at the top of the connecting piece (15), a stop block (24) is fixedly installed. The surface of the bottom of the stop block (24) is in contact with the surface of the top of the connecting piece (15).
6. The instrument lathe with a safety clamping structure according to claim 1, wherein: On the top surface of the fixing block (8), a pushing block (13) is fixedly installed.
7. The instrument lathe with a safety clamping structure according to claim 6, characterized in that: On the top surface of the limiting block (7), a pushing block (12) is fixedly connected.