Auxiliary jacking mechanism for lathe machining
By designing a lathe machining auxiliary clamping mechanism, the outer diameter and inner wall of the bar stock can be machined simultaneously, solving the problems of accuracy and thermal expansion compensation in the existing technology, and improving machining efficiency and accuracy.
Patent Information
- Application Number
- CN202423308014.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing lathe machining auxiliary clamping mechanisms cannot simultaneously meet the auxiliary needs of machining the outer diameter and inner wall of bar stock, and require center drilling for positioning to ensure accuracy. Furthermore, they cannot compensate for the thermal expansion of the material during machining.
A lathe machining auxiliary clamping mechanism was designed, which includes a clamping mechanism, an internal and external machining auxiliary mechanism, and a thermal expansion compensation mechanism. Internal and external machining is achieved through a hollow single-row four-point contact ball slewing bearing and an inner conical tip. Stacked disc spring washers are used to increase the movement vacancy to compensate for thermal expansion.
It improves processing efficiency and precision, simplifies the structure, achieves compatibility between internal and external processing, compensates for the thermal expansion of materials during processing, releases stress, and improves the usage environment and service life.
Smart Images
Figure CN223833486U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lathe machining technology, specifically to an auxiliary clamping mechanism for lathe machining. Background Technology
[0002] Existing lathe auxiliary clamping mechanisms are mainly external diameter machining clamping mechanisms, primarily used for clamping operations in the external diameter machining of long and heavy bars. As market demands for part processing efficiency become increasingly complex and quality requirements rise, machine tool processing efficiency and precision also increase. Consequently, the requirements for lathe machining auxiliary clamping mechanisms are also becoming more stringent. These mechanisms must not only assist in external diameter machining but also incorporate internal wall machining assistance functions. Currently, various lathe machining auxiliary clamping mechanisms are available on the market, but some shortcomings still exist.
[0003] In practical applications, existing lathe auxiliary clamping mechanisms can only assist in the machining of the outer diameter of bar stock, but cannot simultaneously assist in the machining of the inner wall. Furthermore, commonly used lathe auxiliary clamping mechanisms require center drilling for positioning before ensuring the accuracy of product machining. In addition, existing technologies cannot compensate for the thermal expansion of the workpiece material during machining. Therefore, we propose a lathe auxiliary clamping mechanism to solve the problems mentioned above. Utility Model Content
[0004] The purpose of this utility model is to provide a lathe machining auxiliary clamping mechanism to solve the problems mentioned in the background art regarding the current lathe machining auxiliary clamping mechanisms. The existing technology can meet the auxiliary requirements for machining the outer diameter of bar stock, but cannot simultaneously meet the auxiliary requirements for machining the inner wall. In addition, the commonly used lathe auxiliary clamping mechanisms on the market require center drilling for positioning before the product machining accuracy can be guaranteed. Furthermore, the existing technology cannot compensate for the thermal expansion generated by the material being processed during the machining process.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a lathe machining auxiliary clamping mechanism, comprising:
[0006] Mounting base plate, with guide rail mounting plates symmetrically mounted on the upper left and right sides of the mounting base plate;
[0007] Also includes:
[0008] A clamping mechanism is provided above the mounting base plate. The clamping mechanism includes a tailstock guide rail assembly, a lead screw, a support base, a guide rail mounting plate, a handwheel body, a bearing seat body, a handwheel shaft body, a bellows cover body, a reducer, a synchronous pulley, and a synchronous belt body. The tailstock guide rail assembly is installed above the guide rail mounting plate, and a support base is provided in the middle of the tailstock guide rail assembly. The mounting base plate is fixedly connected to the bottom of the support base, and a lead screw is rotatably installed in the middle of the support base.
[0009] The tailstock guide rail assembly is provided with an internal and external machining auxiliary mechanism, which includes a tail top mounting bracket, a single-row four-point contact ball slewing bearing, and an inner conical tip. The tail top mounting bracket is slidably arranged above the tailstock guide rail assembly, and a single-row four-point contact ball slewing bearing is installed above the tail top mounting bracket. An inner conical tip is provided on the front side of the single-row four-point contact ball slewing bearing, and both the single-row four-point contact ball slewing bearing and the inner conical tip are hollow.
[0010] Preferably, a timing pulley is mounted on the outside of the lead screw, and a timing belt body is provided on the outside of the timing pulley.
[0011] Preferably, a reducer is provided on the upper inner side of the synchronous pulley, and a handwheel shaft body is connected to the left side of the reducer, and a bearing seat body is fixedly connected to the left side of the handwheel shaft body.
[0012] Preferably, a handwheel body is fixedly installed on the left side of the bearing housing body.
[0013] Preferably, a nut seat is provided on the lower rear side of the synchronous pulley, and the nut seat is slidably disposed on the outside of the lead screw, and a tail top mounting bracket is fixedly connected above the nut seat.
[0014] Preferably, a disc spring washer is installed on the upper rear side of the lead screw.
[0015] Preferably, the guide rail mounting plate has symmetrically mounted bellows cover mounting plates inside, front and back, and the bellows cover body is provided on the outer side of the bellows cover mounting plate.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This lathe machining auxiliary clamping mechanism can complete the clamping action of different bars by setting the clamping mechanism, changing the original complex lathe hydraulic tail jack structure into a simple structure, thereby greatly improving the machining efficiency. At the same time, it is equipped with internal and external machining auxiliary mechanisms and a hollow design at the structural support position. During the clamping process, the machining tool can be inserted through the hollow position to achieve machining. It can also be used for laser cladding. In addition, a heat extension compensation mechanism is set up. By adding stacked disc spring washers to increase the movement play, the heat extension generated by the machining material during the machining process can be compensated and stress can be released.
[0017] 1. It is equipped with a tail top mounting bracket, a single-row four-point contact ball slewing bearing, and an inner conical center. Guide rail mounting plates are symmetrically installed on the left and right sides above the mounting base plate. A tailstock guide rail assembly is set above the guide rail mounting plates. The tail top mounting bracket is slidably connected above the tailstock guide rail assembly. A single-row four-point contact ball slewing bearing is installed above the tail top mounting bracket. An inner conical center is installed on the front side of the single-row four-point contact ball slewing bearing. The interior of the single-row four-point contact ball slewing bearing and the inner conical center is hollow. That is, during the clamping process, the machining tool can be inserted through the hollow position to perform machining. It can also be used for laser cladding.
[0018] 2. The system includes a lead screw, support seats, guide rail mounting plate, and mounting base plate. Support seats are symmetrically mounted on the upper center of the mounting base plate. A lead screw is rotatably mounted inside the support seats, and a timing pulley is installed inside the lead screw. A timing belt body is connected to the outer side of the timing pulley. A reducer is located above and inside the timing pulley, and the left side of the reducer is connected to the handwheel shaft body. The left side of the handwheel shaft body is connected to the bearing housing body, and the handwheel body is mounted on the left side of the bearing housing body. By gripping the handwheel body and rotating it, the bearing housing... The main body, handwheel shaft, and reducer rotate. The reducer can reverse direction and drive the synchronous pulley to rotate. A nut seat is set below the synchronous pulley and on the rear side. The nut seat is located on the outside of the lead screw. With the synchronous belt main body connected, the synchronous pulley will cause the nut seat to rotate, causing the nut seat to move linearly along the lead screw. Since the tail top mounting bracket is fixedly installed above the nut seat, the tail top mounting bracket will move with the movement of the nut seat and slide above the tail seat guide rail assembly set on the guide rail mounting plate, thus achieving the clamping effect of the tail top.
[0019] 3. A speed reducer is installed above the inner side of the synchronous belt pulley. The speed reducer can reduce physical exertion and reduce the intensity of work.
[0020] 4. A lead screw is provided, and a disc spring washer is installed on the upper rear side of the lead screw. The disc spring washer can increase the movement play, so that the thermal expansion generated by the processing material during the processing can be compensated and stress can be released.
[0021] 5. It is equipped with a bellows cover mounting plate and a bellows cover body. The bellows cover mounting plate is symmetrically installed on the inner side of the guide rail mounting plate, and the bellows cover body is installed on the outer side of the bellows cover mounting plate. The bellows cover body fully encloses the tailstock guide rail assembly and the lead screw, which can isolate all dust from the outside, improve the operating environment of the mechanism, and increase the service life of the machining process. Attached Figure Description
[0022] Figure 1 This is a perspective structural diagram of the present invention;
[0023] Figure 2 This is a perspective view of the tail-top mounting bracket, single-row four-point contact ball slewing bearing, and inner conical tip connection structure of the present invention.
[0024] Figure 3 A perspective view of the mounting base plate, disc spring washer, and connecting structure of this utility model;
[0025] Figure 4 This is a perspective split-structure diagram of the present invention;
[0026] Figure 5 This is a perspective view of the connection structure of the lead screw, timing pulley, and timing belt body of this utility model;
[0027] Figure 6 This is a perspective view of the connection structure of the handwheel body, bearing seat body, and handwheel shaft body of this utility model.
[0028] In the diagram: 1. Tail top mounting bracket; 2. Single-row four-point contact ball slewing bearing; 3. Inner cone center; 4. Tailstock guide rail assembly; 5. Lead screw; 6. Support seat; 7. Guide rail mounting plate; 8. Mounting base plate; 9. Handwheel body; 10. Bearing seat body; 11. Handwheel shaft body; 12. Bellows cover body; 13. Reducer; 14. Synchronous pulley; 15. Synchronous belt body; 16. Bellows cover mounting plate; 17. Nut seat; 18. Disc spring washer. Detailed Implementation
[0029] 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.
[0030] Please see Figures 1-6 This utility model provides a technical solution:
[0031] Example 1: To address the problems existing in the prior art, this example provides the following technical solution: a lathe machining auxiliary clamping mechanism is provided with a mounting base plate 8; the clamping mechanism, located above the mounting base plate 8, can effectively complete the clamping action of different bars, simplifying the previously complex tailstock structure, saving production costs and greatly improving machining efficiency; an internal and external machining auxiliary mechanism is located above the tailstock guide rail group 4, enabling simultaneous internal and external machining assistance for the bars, and its hollow interior allows the processed bars to be inserted through the hollow position during the clamping process; a heat extension compensation mechanism is located above and behind the lead screw 5, allowing the disc spring washers 18 to stack and move freely, helping the processed material to move freely during machining. The thermal expansion generated during the process is compensated, releasing stress. First, the bar stock to be processed is placed above the tail-end mounting bracket 1, inside a single-row four-point contact ball slewing bearing 2 and an inner conical tip 3. Then, the handwheel body 9 is rotated. When the handwheel body 9 rotates, the connected bearing seat body 10 and handwheel shaft body 11 rotate. Since the reducer 13 is connected to the right side of the handwheel shaft body 11 and is located inside and below the synchronous pulley 14, the rotation of the handwheel shaft body 11 will drive the reducer 13 to reverse direction. When the reducer 13 rotates and reverses direction, the synchronous pulley 14 will rotate. The synchronous belt body 15 is connected to the outside of the synchronous pulley 14, and a nut is set on the lower rear side of the synchronous pulley 14. The nut seat 17 is located on the outside of the lead screw 5. The lead screw 5 is symmetrically connected to the support seat 6 on both its front and rear sides for fixed support. The mounting base plate 8 is fixedly connected to the bottom of the support seat 6. When the timing pulley 14 rotates, the timing belt body 15 connects it, causing the upper and lower sides of the timing pulley 14 to rotate synchronously. The rotation of the lower timing pulley 14 causes the nut seat 17 to rotate, resulting in linear movement outside the lead screw 5. Since the tailstock mounting bracket 1 is fixedly mounted on the nut seat 17, it can move to achieve the clamping action of the tailstock. The reducer 13 reduces physical exertion and workload. Furthermore, the tailstock mounting bracket 1 is slidably connected to the tailstock guide rail assembly 4 at its bottom. The tailstock guide rail assembly 4 is positioned above the guide rail mounting plate 7, which is symmetrically mounted on the top mounting plate 8. This arrangement allows the tailstock mounting bracket 1 to move more smoothly. Additionally, accordion mounting plates 16 are installed on the front and rear sides of the guide rail mounting plate 7, and accordion cover bodies 12 are installed on the outer sides of the accordion cover mounting plates 16. The accordion cover bodies 12 completely enclose the tailstock guide rail assembly 4 and the lead screw 5, effectively isolating dust from the outside and improving the operating environment of the mechanism, thereby extending its service life. Furthermore, disc spring washers 18 are installed above and behind the lead screw 5. The stacking of disc spring washers 18 increases the movement play, compensating for the thermal expansion of the processed material during processing.
[0032] Existing clamping mechanisms are complex and reduce processing efficiency. Therefore, this embodiment adopts the following technical solution, such as... Figure 4 , Figure 5 and Figure 6 As shown, the clamping mechanism has symmetrically mounted support seats 6 at the center of the mounting base plate 8. A lead screw 5 is rotatably mounted inside the support seat 6, and a synchronous pulley 14 is mounted inside the lead screw 5. A synchronous belt body 15 is connected to the outer side of the synchronous pulley 14. A reducer 13 is positioned above the inner side of the synchronous pulley 14. The left side of the reducer 13 is connected to the handwheel shaft body 11, and the left side of the handwheel shaft body 11 is connected to the bearing seat body 10. A handwheel body 9 is mounted on the left side of the bearing seat body 10. By gripping the handwheel body 9 and rotating it, the bearing seat body 10, handwheel shaft body 11, and... The reducer 13 rotates, enabling reversing and driving the synchronous pulley 14 to rotate. A nut seat 17 is located below and behind the synchronous pulley 14, outside the lead screw 5. With the synchronous belt body 15 connected, the synchronous pulley 14 causes the nut seat 17 to rotate, allowing it to move linearly along the lead screw 5. Since the tailstock mounting bracket 1 is fixedly installed above the nut seat 17, it moves with the nut seat 17 and slides above the tailstock guide rail assembly 4 on the guide rail mounting plate 7, thus achieving the clamping effect of the tailstock.
[0033] Example 2: Existing clamping mechanisms, while capable of assisting in the machining of the outer diameter of bar stock using current technology, cannot simultaneously assist in the machining of the inner wall. Therefore, this example employs the following technical solution: Figure 1 , Figure 2 and Figure 3 As shown, the internal and external machining auxiliary mechanism includes a tail top mounting bracket 1 located above the tailstock guide rail assembly 4. The tail top mounting bracket 1 is slidably mounted with the tailstock guide rail assembly 4. At the same time, a single-row four-point contact ball slewing bearing 2 is mounted above the tail top mounting bracket 1. An inner conical tip 3 is mounted on the front side of the single-row four-point contact ball slewing bearing 2. The interiors of the single-row four-point contact ball slewing bearing 2 and the inner conical tip 3 are hollow, which means that during the clamping process, the machining tool can be inserted through the hollow position to achieve machining. It can also be used for laser cladding processing.
[0034] Example 3: Existing clamping mechanisms have problems such as being unable to compensate for the thermal expansion of the workpiece material during processing. Therefore, this example uses the following technical solution, such as... Figure 1 , Figure 3 and Figure 6As shown, the thermal expansion compensation mechanism includes a disc spring washer 18 disposed on the rear side above the lead screw 5. The disc spring washer 18 can increase the movement play, so that the thermal expansion generated by the processing material during the processing can be compensated and stress can be released.
[0035] The contents not described in detail in this specification are existing technologies known to those skilled in the art. All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.
[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A lathe machining auxiliary clamping mechanism, including: Mounting base plate (8), and guide rail mounting plates (7) are symmetrically mounted on the left and right sides above the mounting base plate (8); Its characteristic is that it further includes: A clamping mechanism is provided above the mounting base plate (8), wherein the clamping mechanism includes a tailstock guide rail assembly (4), a lead screw (5), a support seat (6), a guide rail mounting plate (7), a handwheel body (9), a bearing seat body (10), a handwheel shaft body (11), a bellows cover body (12), a reducer (13), a synchronous pulley (14), and a synchronous belt body (15). The tailstock guide rail assembly (4) is installed above the guide rail mounting plate (7), and a support seat (6) is provided in the middle of the tailstock guide rail assembly (4). The mounting base plate (8) is fixedly connected to the bottom of the support seat (6), and a lead screw (5) is rotatably installed in the middle of the support seat (6). The tailstock guide rail assembly (4) is provided with an internal and external machining auxiliary mechanism, which includes a tail top mounting bracket (1), a single-row four-point contact ball slewing bearing (2) and an inner cone tip (3). The tail top mounting bracket (1) is slidably provided above the tailstock guide rail assembly (4), and a single-row four-point contact ball slewing bearing (2) is installed above the tail top mounting bracket (1). An inner cone tip (3) is provided on the front side of the single-row four-point contact ball slewing bearing (2). Both the single-row four-point contact ball slewing bearing (2) and the inner cone tip (3) are hollow.
2. The lathe machining auxiliary clamping mechanism according to claim 1, characterized in that: The lead screw (5) is equipped with a timing pulley (14) on its outside, and a timing belt body (15) is provided on the outside of the timing pulley (14).
3. The lathe machining auxiliary clamping mechanism according to claim 2, characterized in that: A reducer (13) is provided on the upper inner side of the synchronous pulley (14), and a handwheel shaft body (11) is connected to the left side of the reducer (13), and a bearing seat body (10) is fixedly connected to the left side of the handwheel shaft body (11).
4. The lathe machining auxiliary clamping mechanism according to claim 3, characterized in that: A handwheel body (9) is fixedly installed on the left side of the bearing housing body (10).
5. The lathe machining auxiliary clamping mechanism according to claim 2, characterized in that: A nut seat (17) is provided on the lower rear side of the synchronous pulley (14), and the nut seat (17) is slidably disposed on the outside of the lead screw (5), and a tail top mounting bracket (1) is fixedly connected above the nut seat (17).
6. The lathe machining auxiliary clamping mechanism according to claim 5, characterized in that: A disc spring washer (18) is installed on the upper rear side of the lead screw (5).
7. The lathe machining auxiliary clamping mechanism according to claim 1, characterized in that: The guide rail mounting plate (7) has a bellows cover mounting plate (16) symmetrically installed inside, and a bellows cover body (12) is provided on the outside of the bellows cover mounting plate (16).