A screw clamping mechanism for a machine tool tailstock

Abstract

The utility model relates to clamping mechanism technical field, concretely relates to a screw rod clamping mechanism for lathe tailstock, including screw rod, both ends of screw rod are equipped with first bearing seat and second bearing seat, one end of screw rod is connected with first bearing seat through first bearing, the inside of first bearing seat is equipped with cavity, be equipped with spring in the cavity, spring is sleeved on screw rod, one end of spring is in abutment with first bearing seat, the other end of spring is equipped with limit stop, limit stop and cavity inner wall slidingly connect, and inductive adjustment assembly is connected on the limit stop, the screw rod is screwed on with screw nut, one end of screw rod still is equipped with drive motor. The utility model optimizes the structure of screw rod clamping mechanism, realized the accurate regulation and control of clamping force in the equipment operation process, improved the positioning stability and processing accuracy of lathe tailstock.

Description

Technical Field

[0001] This utility model relates to the field of clamping mechanism technology, specifically to a lead screw clamping mechanism for a machine tool tailstock. Background Technology

[0002] In existing lead screw clamping mechanisms, clamping springs and disc springs are mostly installed at the lead screw nut and lead screw seat, moving with the tailstock or slide plate. However, after the tailstock or slide plate is equipped with a protective device, the pressure adjustment and sensing device is hidden inside the protective cover, making it difficult to observe, adjust, and maintain. When adjusting the clamping force, the protective device must be removed, which increases the complexity of operation. Furthermore, the clamping force adjustment device moves with the nut and cannot adjust the clamping force in real time. It can only estimate the compression amount when the machine is stopped, and repeatedly adjust it, which increases the difficulty and time of adjustment. Utility Model Content

[0003] To address the aforementioned problems, this utility model proposes a lead screw clamping mechanism for a machine tool tailstock, which optimizes the structure of the lead screw clamping mechanism, enables precise control of the clamping force during equipment operation, and improves the positioning stability and machining accuracy of the machine tool tailstock.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: a lead screw clamping mechanism for a machine tool tailstock, comprising a lead screw, with a first bearing seat and a second bearing seat at both ends of the lead screw. One end of the lead screw is connected to the first bearing seat via the first bearing. A cavity is formed inside the first bearing seat, and a spring is provided inside the cavity. The spring is sleeved on the lead screw, with one end of the spring abutting against the first bearing seat. A limiting block is provided at the other end of the spring, and the limiting block is slidably connected to the inner wall of the cavity. A sensing adjustment component is connected to the limiting block. A lead screw nut is screwed onto the lead screw, and a drive motor is also provided at one end of the lead screw.

[0005] As a further embodiment of this utility model: a sliding sleeve is fixedly connected to one end of the lead screw, a transmission wheel is provided at one end of the sliding sleeve, the transmission wheel is connected to the output end of the drive motor through a chain, and the other end of the sliding sleeve is connected to the first bearing seat through a first bearing.

[0006] As a further improvement of this utility model, the other end of the lead screw is connected to the second bearing seat via a second bearing.

[0007] As a further improvement of this utility model: a through hole is provided on the top of the first bearing seat, and the through hole is located above the limiting block.

[0008] As a further embodiment of this utility model: the sensing adjustment assembly includes a sensing plate and an adjustment platform. One end of the sensing plate passes through a through hole and is fixedly connected to a limiting block. The other end of the sensing plate is provided with a sensing switch, which is connected to the adjustment platform.

[0009] As a further improvement of this utility model: a strip-shaped hole is provided on the adjustment platform, and the inductive switch is connected to the adjustment platform through the strip-shaped hole.

[0010] As a further improvement of this utility model, a wire nut seat is fixedly connected to the wire nut.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model optimizes the structure of the lead screw clamping mechanism by adding a spring to the end of the lead screw, ensuring that the spring is evenly stressed at the end of the bearing seat, improving the stability of clamping, avoiding the problem of tail seat displacement caused by uneven clamping, reducing errors, and improving machining accuracy. 2. This utility model places the sensing adjustment mechanism on the outside of the bearing seat, making the adjustment process more intuitive and convenient, realizing the convenience, speed and accuracy of clamping force adjustment, reducing the difficulty of maintenance and adjustment, and improving work efficiency. 3. The spring of this utility model is subjected to uniform force, which reduces spring wear, increases spring service life, reduces replacement and maintenance costs, and improves the overall stability and reliability of the equipment. 4. This utility model has strong applicability and is applicable to machine tool tailstock clamping systems of different specifications and types. Attached Figure Description

[0012] Figure 1 This is a front sectional view of the lead screw clamping mechanism for a machine tool tailstock according to the present invention. Figure 2 This is a top view of the lead screw clamping mechanism for a machine tool tailstock according to the present invention; Figure 3 This is a side view of the lead screw clamping mechanism for a machine tool tailstock according to the present invention; In the diagram: 1. Lead screw; 2. First bearing housing; 3. Second bearing housing; 4. First bearing; 5. Cavity; 6. Spring; 7. Limiting block; 8. Inductive adjustment assembly; 81. Inductive plate; 82. Adjustment platform; 83. Inductive switch; 84. Strip hole; 9. Lead screw nut; 10. Drive motor; 11. Sliding sleeve; 12. Transmission wheel; 13. Chain; 14. Second bearing; 15. Through hole; 16. Lead screw nut seat. Detailed Implementation

[0013] 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.

[0014] refer to Figures 1 to 3 A lead screw clamping mechanism for a machine tool tailstock includes a lead screw 1. The lead screw 1 has a first bearing seat 2 and a second bearing seat 3 at both ends. One end of the lead screw 1 is connected to the first bearing seat 2 via a first bearing 4. A cavity 5 is formed inside the first bearing seat 2. A spring 6 is disposed within the cavity 5 and is sleeved on the lead screw 1. One end of the spring 6 abuts against the first bearing seat 2. A limiting block 7 is provided at the other end of the spring 6. The limiting block 7 is slidably connected to the inner wall of the cavity 5. A sensing adjustment component 8 is connected to the limiting block 7. A lead screw nut 9 is screwed onto the lead screw 1. A drive motor 10 is also provided at one end of the lead screw 1.

[0015] One end of the lead screw 1 is fixedly connected to a sliding sleeve 11, and one end of the sliding sleeve 11 is provided with a transmission wheel 12. The transmission wheel 12 is connected to the output end of the drive motor 10 through a chain 13. The other end of the sliding sleeve 11 is connected to the first bearing seat 2 through a first bearing 4.

[0016] The other end of the lead screw 1 is connected to the second bearing seat 3 via the second bearing 14.

[0017] The top of the first bearing housing 2 is provided with a through hole 15, which is located above the limiting block 7.

[0018] The sensing adjustment assembly 8 includes a sensing plate 81 and an adjustment platform 82. One end of the sensing plate 81 passes through the through hole 15 and is fixedly connected to the limiting block 7. The other end of the sensing plate 81 is provided with a sensing switch 83, which is connected to the adjustment platform 82.

[0019] The regulating table 82 has a strip hole 84. The inductive switch 83 is connected to the regulating table 82 through the strip hole 84. Adjusting the position of the inductive switch 83 on the regulating table 82 adjusts the pressure of the spring 6.

[0020] A nut seat 16 is fixedly connected to the nut 9.

[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A lead screw clamping mechanism for a machine tool tailstock, comprising a lead screw (1), characterized in that: The lead screw (1) has a first bearing seat (2) and a second bearing seat (3) at both ends. One end of the lead screw (1) is connected to the first bearing seat (2) through the first bearing (4). The first bearing seat (2) has a cavity (5) inside. A spring (6) is provided in the cavity (5). The spring (6) is sleeved on the lead screw (1). One end of the spring (6) abuts against the first bearing seat (2). The other end of the spring (6) is provided with a limiting block (7). The limiting block (7) is slidably connected to the inner wall of the cavity (5). A sensing adjustment component (8) is connected to the limiting block (7). A screw nut (9) is screwed onto the lead screw (1). A drive motor (10) is also provided at one end of the lead screw (1).

2. The lead screw clamping mechanism for a machine tool tailstock according to claim 1, characterized in that: One end of the lead screw (1) is fixedly connected to a sliding sleeve (11), and one end of the sliding sleeve (11) is provided with a transmission wheel (12). The transmission wheel (12) is connected to the output end of the drive motor (10) via a chain (13). The other end of the sliding sleeve (11) is connected to the first bearing seat (2) via a first bearing (4).

3. The lead screw clamping mechanism for a machine tool tailstock according to claim 2, characterized in that: The other end of the lead screw (1) is connected to the second bearing seat (3) via the second bearing (14).

4. The lead screw clamping mechanism for a machine tool tailstock according to claim 3, characterized in that: The first bearing seat (2) has a through hole (15) at its top, and the through hole (15) is located above the limiting block (7).

5. The lead screw clamping mechanism for a machine tool tailstock according to claim 4, characterized in that: The sensing adjustment assembly (8) includes a sensing plate (81) and an adjustment platform (82). One end of the sensing plate (81) passes through a through hole (15) and is fixedly connected to the limiting block (7). The other end of the sensing plate (81) is provided with a sensing switch (83), which is connected to the adjustment platform (82).

6. The lead screw clamping mechanism for a machine tool tailstock according to claim 5, characterized in that: The regulating platform (82) has a strip hole (84), and the inductive switch (83) is connected to the regulating platform (82) through the strip hole (84).

7. The lead screw clamping mechanism for a machine tool tailstock according to claim 6, characterized in that: A nut seat (16) is fixedly connected to the nut (9).

Images