Swisp type numerical control lathe for turn-milling

Abstract

The utility model relates to the technical field of numerical control lathes, and discloses a center-moving type numerical control lathe for turn-milling, which comprises a base, a turn-milling frame is arranged on the base, a conveying assembly is arranged on the turn-milling frame, a limiting assembly is arranged on the conveying assembly, and the limiting assembly comprises a limiting sleeve seat. A main shaft sleeve and a transmission sleeve which can horizontally move front and back are arranged in the limiting sleeve base, one end of the main shaft sleeve is arranged in one end of the transmission sleeve in a sleeved mode, a reset spring is arranged at the end, close to the main shaft sleeve, in the transmission sleeve, and a middle two-positioning-clamping-jaw forward-pushing clamping structure is adopted on the main shaft sleeve. The clamping structure is symmetrically distributed, the structure is simple and small, the centrifugal force in the rotating process is reduced, the spindle sleeve is kept in certain dynamic balance in the rotating process, stable high-speed rotation can be achieved, and the machining precision and the machining efficiency of products are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to numerical control lathe technical field, concretely relates to a walking heart type numerical control lathe for turning and milling. BACKGROUND

[0002] Turning and milling is a kind of composite technology that uses the combined motion of milling cutter rotation and workpiece rotation to realize cutting processing. It combines the advantages of turning and milling, and can complete multiple machining processes in one clamping, thereby improving machining efficiency and precision.

[0003] Most of the existing numerical control lathes in the prior art have the problem that the bar is prone to shaking and deflecting during high-speed rotation when turning and milling the bar.

[0004] In summary, the numerical control lathe in the prior art has the problem that the bar is prone to shaking and deflecting during high-speed rotation when turning and milling the bar. SUMMARY

[0005] The utility model aims to provide a walking heart type numerical control lathe for turning and milling, to solve the technical problem that the shaft sleeve is prone to causing the bar to shake and deflect during high-speed rotation when most of the existing numerical control lathes are turning and milling the bar.

[0006] The technical problem to be solved by the utility model can be solved by the following technical solutions:

[0007] A walking heart type numerical control lathe for turning and milling,

[0008] The utility model discloses a base is provided with turning and milling frame on the base, the turning and milling frame is provided with conveying assembly, the conveying assembly is provided with limiting assembly on the conveying assembly.

[0009] The limiting assembly includes a limiting sleeve, the inside of the limiting sleeve is provided with a main shaft sleeve and a transmission sleeve that can move horizontally forward and backward, one end of the main shaft sleeve is sleeved in one end of the transmission sleeve, a return spring is arranged in the transmission sleeve near one end of the main shaft sleeve, one end of the main shaft sleeve sleeved in the transmission sleeve is provided with a converging end that can press the return spring.

[0010] The outer wall of the main shaft sleeve is provided with a sunken rectangular groove that is symmetrically distributed up and down, the inside of the limiting sleeve is rotatably provided with a positioning clamp jaw that matches the sunken rectangular groove, one end of the positioning clamp jaw away from the rotating end is provided with a raised portion, the outside of the positioning clamp jaw is sleeved with a flexible sleeve, and the bottom of the flexible sleeve is provided with a pressing portion that can press the raised portion.

[0011] As a further scheme of the utility model: the inside of transmission sleeve is equipped with limiting slot for installing reset spring, the movable slot for installing positioning jaw is equipped on the limiting sleeve seat, the inside diameter of reset spring is greater than the outside diameter of bar.

[0012] As a further scheme of the utility model: the conveying assembly includes the moving seat slidingly arranged on the turning and milling frame platform, and the power source for driving the moving seat to move can be arranged on one side of the turning and milling frame.

[0013] As a further scheme of the utility model: the top of moving seat is provided with side plate body, and the discharging port is equipped on the side plate body, and the type frame body for installing limiting assembly is arranged on one side of side plate body.

[0014] As a further scheme of the utility model: the movable sleeve is arranged in the inside of transmission sleeve, and one end of sleeve is in contact with reset spring.

[0015] As a further scheme of the utility model: the other end of sleeve is provided with positioning chuck for clamping bar, and the end of positioning chuck is in contact with the end inner wall of limiting sleeve seat, and the outer wall of positioning chuck is equipped with three groups of interval distribution contraction grooves.

[0016] As a further scheme of the utility model: the end of transmission sleeve away from main shaft sleeve is provided with extrusion end sleeve for forming radial extrusion to positioning chuck, and extrusion end sleeve is arranged on the outside of positioning chuck.

[0017] As a further scheme of the utility model: the swinging shift fork for driving the movement of flexible sleeve is rotatably arranged in the inside of type frame body, and swinging shift fork is located on the outside of limiting sleeve seat.

[0018] As a further scheme of the utility model: swinging shift fork is fixedly connected with flexible sleeve through extrusion block.

[0019] As a further scheme of the utility model: the telescopic pneumatic cylinder is arranged on side plate body, and the output end of telescopic pneumatic cylinder is rotatably connected with swinging shift fork.

[0020] The utility model has the advantages of:

[0021] 1、In the utility model, the front pushing clamping structure of two positioning jaws is adopted on the main shaft sleeve, the clamping structure is symmetrically distributed, the structure is simple and small, the centrifugal force in the rotating process is reduced, the main shaft sleeve is kept in certain dynamic balance in the rotating process, stable high-speed rotation can be realized, and the machining precision and machining efficiency of product are greatly improved.

[0022] 2. The utility model discloses, utilize the motion cooperation transmission sleeve of main shaft sleeve, constitute synchronous transmission structure, can drive extrusion end cover to form radial extrusion to positioning chuck when utilizing the positioning jaw to form the limiting of main shaft sleeve to the bar material clamping fixed is realized. BRIEF DESCRIPTION OF DRAWINGS

[0023] The utility model will be further described below in combination with the drawings.

[0024] Figure 1 It is the whole three -dimensional schematic diagram of device in the utility model,

[0025] Figure 2 It is the utility model Figure 1 A place enlarged schematic view in the utility model,

[0026] Figure 3 It is the utility model

[0027] Figure 4 It is the utility model

[0028] In the drawing: 1, base, 2, car milling frame, 3, mobile seat, 4, side plate body, 5, type frame body, 6, limit sleeve seat, 7, main shaft sleeve, 8, transmission sleeve, 9, reset spring, 10, collection end, 11, clamp sleeve, 12, positioning chuck, 13, contraction groove, 14, extrusion end cover, 15, sink rectangle groove, 16, positioning jaw, 17, lift up part, 18, active cover, 19, press down part, 20, swing shift fork, 21, extrusion block, 22, telescopic cylinder. DETAILED DESCRIPTION

[0029] The specific embodiments of the utility model will be described in detail below, but it should be understood that the protection scope of the utility model is not limited by the specific embodiments.

[0030] As Figures 1-4 shown, a car milling gang type numerical control lathe,

[0031] Including base 1, be provided with car milling frame 2 on base 1, be provided with conveying assembly on car milling frame 2, be provided with limiting assembly on conveying assembly, base 1 provides stable support for entire lathe, guarantees the overall stability of device in processing process, and car milling frame 2 provides installation position for conveying assembly and limiting assembly, ensures the stability of processing process;

[0032] The limiting assembly comprises a limiting sleeve seat 6, the inside of the limiting sleeve seat 6 is provided with a main shaft sleeve 7 and a transmission sleeve 8 which can move horizontally forward and backward, one end of the main shaft sleeve 7 is sleeved in one end of the inside of the transmission sleeve 8, the inside of the transmission sleeve 8 is provided with a reset spring 9 near one end of the main shaft sleeve 7, the inside of the transmission sleeve 8 is provided with a limiting groove for installing the reset spring 9, the inner diameter of the reset spring 9 is larger than the outer diameter of the bar, one end of the main shaft sleeve 7 which is sleeved in the inside of the transmission sleeve 8 is provided with a converging end 10 which can extrude the reset spring 9, wherein the outer wall of the main shaft sleeve 7 is provided with a sunken rectangular groove 15 which is symmetrically distributed up and down, the inside of the limiting sleeve seat 6 is rotationally provided with a positioning clamping jaw 16 which is matched with the sunken rectangular groove 15, the limiting sleeve seat 6 is provided with a movable groove for installing the positioning clamping jaw 16, one end of the positioning clamping jaw 16 which is away from the rotating end is provided with a raised part 17, the outside of the positioning clamping jaw 16 is sleeved with a flexible sleeve 18, one end of the bottom of the flexible sleeve 18 is provided with a downward pressing part 19 which can extrude the raised part 17, the inside of the H-shaped frame body 5 is rotationally provided with a swing yoke 20 for driving the flexible sleeve 18 to move, and the swing yoke 20 is located outside the limiting sleeve seat 6, the swing yoke 20 is fixedly connected with the flexible sleeve 18 through an extrusion block 21, the side plate body 4 is provided with a telescopic cylinder 22, and the output end of the telescopic cylinder 22 is rotationally connected with the swing yoke 20, when the device is used, the bar to be processed is inserted into the main shaft sleeve 7 in the limiting sleeve seat 6, the limiting sleeve seat 6 is connected with the external transmission mechanism to realize the rotation of the bar body, then the telescopic cylinder 22 is started, the telescopic cylinder 22 drives the swing yoke 20 to swing to one side, at this time the swing yoke 20 drives the flexible sleeve 18 to move to one side, at this time the downward pressing part 19 on the flexible sleeve 18 extrudes the raised part 17 on the positioning clamping jaw 16 downward, thereby the positioning clamping jaw 16 rotates into the sunken rectangular groove 15 on the main shaft sleeve 7, at this time the main shaft sleeve 7 can be stably clamped, in the subsequent processing, the positioning clamping jaw 16 can rotate with the limiting sleeve seat 6, which maximally avoids the shaking deviation of the main shaft sleeve 7 when rotating at high speed, and ensures the stability of the bar body when processing, the flexible sleeve 18 is a bearing structure, which can ensure that the flexible sleeve 18 does not hinder the normal rotation of the positioning clamping jaw 16 when extruding the positioning clamping jaw 16, one end of the positioning clamping jaw 16 which is away from the raised part 17 extrudes the inner wall of the sunken rectangular groove 15 in the rotating process, thereby driving the main shaft sleeve 7 to move to one side to extrude the reset spring 9, when the processing is completed, the swing yoke 20 resets, the pressure on the positioning clamping jaw 16 disappears, at this time the reset spring 9 can drive the main shaft sleeve 7 to reset by the elastic force, the movement of the main shaft sleeve 7 resets the positioning clamping jaw 16, thereby facilitating the subsequent recycling.

[0033] In the embodiment, specifically, the conveying assembly comprises a moving seat 3 slidingly arranged on the table surface of the turning and milling frame 2, and a power source is arranged on one side of the turning and milling frame 2 for driving the moving seat 3 to move.

[0034] In the embodiment, specifically, the moving seat 3 is provided with a side plate body 4 at one end of the top thereof, and the side plate body 4 is provided with a discharging opening, and the side plate body 4 is provided with a U-shaped frame body 5 for mounting a limiting assembly.

[0035] In the embodiment, specifically, the inner movable sleeve of the transmission sleeve 8 is provided with a clamping sleeve 11, one end of the clamping sleeve 11 is in contact with the reset spring 9, the other end of the clamping sleeve 11 is provided with a positioning chuck 12 for clamping the bar, the end of the positioning chuck 12 is in contact with the inner wall of the end of the limiting sleeve 6, the outer wall of the positioning chuck 12 is provided with three groups of contraction grooves 13 distributed at intervals, one end of the transmission sleeve 8 away from the main shaft sleeve 7 is provided with an extrusion end sleeve 14 for forming radial extrusion on the positioning chuck 12, and the extrusion end sleeve 14 is sleeved on the outer side of the positioning chuck 12, when the main shaft sleeve 7 extrudes the reset spring 9, the main shaft sleeve 7 pushes one end of the transmission sleeve 8, the extrusion end sleeve 14 provided on the transmission sleeve 8 moves synchronously, the inner diameter of the extrusion end sleeve 14 gradually decreases, at this time, the inner wall of the extrusion end sleeve 14 forms radial extrusion on the positioning chuck 12, the inner diameter of the positioning chuck 12 decreases synchronously, thus the positioning chuck 12 can form radial extrusion and fixation on the bar to be machined, the movement of the main shaft sleeve cooperates with the transmission sleeve 8, which constitutes a synchronous transmission structure, when the positioning clamping jaw 16 limits the main shaft sleeve 7, the extrusion end sleeve 14 can drive the positioning chuck 12 to form radial extrusion, so as to realize clamping and fixation of the bar.

[0036] The above only discloses several specific embodiments of the utility model, but the utility model embodiments are not limited to this, any changes that can be thought of by any person skilled in the art should fall into the protection scope of the utility model.

Claims

1. A live center numerical control lathe for turning and milling, characterized in that: it comprises a base (1), a turning and milling frame (2) is arranged on the base (1), a conveying assembly is arranged on the turning and milling frame (2), and a limiting assembly is arranged on the conveying assembly. The limiting assembly comprises a limiting sleeve (6), a main shaft sleeve (7) and a transmission sleeve (8) which can move horizontally forward and backward are arranged in the inside of the limiting sleeve (6), one end of the main shaft sleeve (7) is sleeved in one end of the inside of the transmission sleeve (8), a reset spring (9) is arranged in the inside of the transmission sleeve (8) close to one end of the main shaft sleeve (7), one end of the main shaft sleeve (7) which is sleeved in the inside of the transmission sleeve (8) is provided with a converging end (10) which can extrude the reset spring (9). Wherein, the outer wall of the main shaft sleeve (7) is provided with a sink rectangular groove (15) which is symmetrically distributed upward and downward, the inside of the limiting sleeve (6) is rotatably provided with a positioning clamp jaw (16) which is matched with the sink rectangular groove (15), one end of the positioning clamp jaw (16) which is away from the rotating end is provided with a raised portion (17), the outside of the positioning clamp jaw (16) is sleeved with a flexible sleeve (18), and one end of the bottom of the flexible sleeve (18) is provided with a pressing portion (19) which can press downward the raised portion (17). The inside of the transmission sleeve (8) is provided with a limiting groove for installing the reset spring (9), the limiting sleeve (6) is provided with a movable groove for installing the positioning clamp jaw (16), and the inner diameter of the reset spring (9) is larger than the outer diameter of the bar.

2. The CNC lathe according to claim 1, wherein The conveying assembly comprises a moving seat (3) which is slidably arranged on the table surface of the turning and milling frame (2), and one side of the turning and milling frame (2) is provided with a power source for driving the moving seat (3) to move.

3. The CNC lathe according to claim 1, wherein One end of the top of the moving seat (3) is provided with a side plate body (4), a discharging port is arranged on the side plate body (4), and one side of the side plate body (4) is provided with a U-shaped frame body (5) for installing the limiting assembly.

4. The CNC lathe according to claim 3, wherein The inside of the transmission sleeve (8) is movably sleeved with a clamp sleeve (11), and one end of the clamp sleeve (11) is in contact with the reset spring (9).

5. The CNC lathe according to claim 1, wherein, The other end of the clamp sleeve (11) is provided with a positioning chuck (12) for clamping the bar, the end of the positioning chuck (12) is in contact with the end inner wall of the limiting sleeve (6), and the outer wall of the positioning chuck (12) is provided with three groups of interval distributed converging grooves (13).

6. The CNC lathe according to claim 5, wherein One end of the transmission sleeve (8) which is away from the main shaft sleeve (7) is provided with an extrusion end sleeve (14) for extruding the positioning chuck (12) radially, and the extrusion end sleeve (14) is sleeved on the outside of the positioning chuck (12).

7. The CNC lathe according to claim 6, wherein The inside of the U-shaped frame body (5) is rotatably provided with a swing shift fork (20) for driving the flexible sleeve (18) to move, and the swing shift fork (20) is located on the outside of the limiting sleeve (6).

8. The CNC lathe according to claim 4, wherein The swing shift fork (20) is fixedly connected with the flexible sleeve (18) through an extrusion block (21).

9. The CNC lathe according to claim 8, wherein The side plate body (4) is provided with a telescopic air cylinder (22), and the output end of the telescopic air cylinder (22) is rotatably connected with the swing shift fork (20).

10. The CNC lathe according to claim 8, wherein ​

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