Numerically controlled lathe spindle box and numerically controlled lathe

Abstract

The utility model discloses a numerical control lathe spindle box and a numerical control machine tool. The numerical control lathe spindle box comprises a box body, a spindle, a belt pulley and a clamp. The main shaft horizontally penetrates through the box body and is rotationally connected with the box body; the other end of the main shaft is detachably connected with the clamp; the box body is rotationally connected with the left end of the main shaft through a first bearing, and the right end is rotationally connected with the main shaft through a second bearing. The utility model has the advantages that a belt transmission mode is adopted for rotating shaft transmission, the noise generated by a mode of driving the main shaft by a gear is effectively reduced, and power transmission is carried out by a mode of driving the main shaft by a motor belt; the consumption of raw materials, the manufacturing time cost and the manufacturing cost are reduced, the assembling time of the headstock is shortened, and the yield of the whole machine is improved; the clamping jaws of the clamp are arranged in a step shape, workpieces of different specifications can be clamped conveniently, and the clamping stability and precision are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of numerically controlled lathes, and particularly relates to a main spindle box of a numerically controlled lathe and a numerically controlled lathe. Background Art

[0002] A numerically controlled lathe is an automated lathe that uses digital control technology to control the movement of the lathe. It can automatically complete turning tasks according to a pre-programmed program. It is one of the numerically controlled lathes that are widely used at present. It is mainly used for machining the inner and outer cylindrical surfaces of shaft parts or disk parts, the inner and outer circular surfaces with any taper angle, complex revolving inner and outer curved surfaces, and cylindrical and conical threads, etc., and can also perform grooving, drilling, reaming, boring and other operations. However, the existing main spindle boxes of numerically controlled lathes often adopt a multi-gear transmission method, which has a high cost, a large noise, and a long assembly time; moreover, after multiple gear transmissions, the fixture is driven to rotate, and the accuracy of the fixture is likely to decrease during operation, and the accuracy adjustment is difficult. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a main spindle box of a numerically controlled lathe with low noise.

[0004] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0005] A main spindle box of a numerically controlled lathe includes a box body, a main spindle, a pulley, and a fixture; the main spindle horizontally penetrates through the box body and is rotatably connected to the box body; one end of the main spindle is fixedly connected to the pulley, and the other end is detachably connected to the fixture; the left end of the connection between the box body and the main spindle is rotatably connected through a first bearing, and the right end is rotatably connected through a second bearing.

[0006] Specifically, a first bearing cover is provided on the main spindle between the pulley and the box body; a first end cover is provided on the main spindle at the left end of the pulley; a second end cover is provided on the main spindle at the right end of the box body.

[0007] Specifically, the fixture includes a disc body and clamping jaws; there are four clamping jaws, which are evenly distributed on the front end face of the disc body; the clamping jaws can approach and move away from the center of the disc body.

[0008] Specifically, the upper end of the clamping jaw is stepped, and the stepped vertical surface is an arc surface.

[0009] Specifically, sliding grooves are symmetrically opened at the lower end of the clamping jaw.

[0010] Specifically, a plurality of horizontal grooves are opened on the arc surface; the horizontal grooves are triangular.

[0011] The utility model also provides a numerically controlled lathe with low cost.

[0012] A CNC lathe comprises a CNC lathe spindle box and a lathe body; the CNC lathe spindle box is detachably connected to the upper end of the lathe body; the motor on the lathe body is connected to the pulley on the CNC lathe spindle box through a belt.

[0013] Beneficial effects of the utility model:

[0014] (1) The shaft is driven by belt drive, which effectively improves the noise generated by the gear-driven spindle method, and the power is transmitted by the motor belt driving the spindle; the consumption of raw materials and manufacturing labor costs are reduced, the manufacturing cost is reduced, the assembly time of the headstock is shortened, and the overall machine productivity is improved; the clamping jaws of the fixture are arranged in a stepped shape, which can facilitate the clamping of workpieces of different specifications and ensure the stability and accuracy of the clamping.

[0015] (2) The motor on the lathe body is connected to the pulley on the CNC lathe spindle box through a belt, which effectively reduces the lathe noise of the whole machine and reduces the assembly process, ensuring the accuracy during assembly and operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the spindle box of a CNC lathe;

[0017] Figure 2 is a schematic diagram of the structure of the fixture;

[0018] Figure 3 is a schematic diagram of the structure of the gripper;

[0019] Figure 4 is a side view of the gripper;

[0020] Figure 5 This is a schematic diagram of the structure of a CNC lathe.

[0021] In the figure, 1- lathe body, 2- CNC lathe spindle box;

[0022] 21-box, 22-spindle, 23-pulley, 24-first bearing, 25-second bearing, 26-clamp, 27-first bearing cover, 28-first end cover, 29-second end cover;

[0023] 261-disc body, 262-clamping claw;

[0024] 2621- slide chute, 2622- horizontal chute. DETAILED DESCRIPTION

[0025] The following further describes the specific embodiments of the present utility model in conjunction with the accompanying drawings. It should be noted here that the description of these embodiments is used to help understand the present utility model, but does not constitute a limitation to the present utility model. In addition, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0026] Referring to Figures 1-5 As shown, a spindle box 2 of a numerically controlled lathe includes a box body 21, a main shaft 22, a pulley 23, and a fixture 26; the main shaft 22 horizontally penetrates through the box body 21 and is rotatably connected to the box body 21; one end of the main shaft 22 is fixedly connected to the pulley 23, and the other end is detachably connected to the fixture 26; the left end of the connection between the box body 21 and the main shaft 22 is rotatably connected through a first bearing 24, and the right end is rotatably connected through a second bearing 25.

[0027] It should be noted that the spindle box 2 of the numerically controlled lathe is one of the core components of the lathe, which undertakes the important tasks of supporting the main shaft, transmitting motion and torque. The box body 21 is the main part of the spindle box 2 of the numerically controlled lathe and can support the rest of the parts; the main shaft 22 is the main carrier of transmission; the pulley 23 can be driven by a belt to transmit power; the fixture 26 can clamp parts; the first bearing 24 and the second bearing 25 can effectively ensure the smooth rotation of the main shaft 22.

[0028] Further, a first bearing cover 27 is provided on the main shaft 22 between the pulley 23 and the box body 21; a first end cover 28 is provided on the main shaft 22 at the left end of the pulley 23; a second end cover 29 is provided on the main shaft 22 at the right end of the box body 21. The first bearing cover 27 and the first end cover 28 can ensure the smoothness among the pulley 23, the box body 21, and the first bearing 24; the second end cover 29 can ensure the stability among the box body 21, the second bearing 25, and the main shaft 22.

[0029] Further, the fixture 26 includes a disc body 261 and clamping jaws 262; there are four clamping jaws 262, which are evenly distributed on the front end face of the disc body 261; the clamping jaws 262 can approach and move away from the center of the disc body 261. The cooperation between the disc body 261 and the clamping jaws 262 can stably clamp the workpiece; the arrangement of the four clamping jaws 262 is beneficial to the accuracy when clamping the workpiece;

[0030] Further, in order to facilitate the clamping of workpieces of different specifications and ensure the smoothness and accuracy of clamping, the upper end of the clamping jaw 262 is stepped, and the stepped vertical surface is arc-shaped.

[0031] Further, in order to facilitate the clamping jaws 262 to move away from and approach the disc body 261 to cope with different workpiece specifications, sliding grooves 2621 are symmetrically opened at the lower ends of the clamping jaws 262.

[0032] Further, for the convenience of smoothly removing the workpiece, a plurality of horizontal grooves 2622 are provided on the arc surface; the horizontal grooves 2622 are triangular in shape.

[0033] A numerical control lathe includes a numerical control lathe headstock 2 and a lathe body 1; the numerical control lathe headstock is detachably connected to the upper end of the lathe body 1; the motor on the lathe body 1 is drivingly connected to the pulley 23 on the numerical control lathe headstock through a belt.

[0034] The working principle of the present utility model:

[0035] The numerical control lathe headstock 2 adopts a belt drive mode, which effectively improves the noise generated by the gear driving the spindle, and the power is transmitted by the motor belt driving the spindle; it reduces the consumption of raw materials, the manufacturing man-hour cost, reduces the manufacturing cost, shortens the assembly time of the headstock, and improves the overall machine production rate; it effectively reduces the lathe noise of the whole machine, and the assembly process is reduced, ensuring the accuracy during assembly and operation; the jaws 262 of the fixture 26 are arranged in a stepped shape, which can facilitate the clamping of workpieces of different specifications and ensure the smoothness and accuracy of clamping.

[0036] The above has described the embodiments of the present utility model in detail in conjunction with the accompanying drawings, but the present utility model is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present utility model, various changes, modifications, substitutions, and variations made to these embodiments still fall within the protection scope of the present utility model.

Claims

1. A spindle box (2) of a numerically controlled lathe, characterized in that: It includes a box body (21), a main shaft (22), a pulley (23), and a fixture (26); the main shaft (22) horizontally penetrates through the box body (21) and is rotatably connected to the box body (21); one end of the main shaft (22) is fixedly connected to the pulley (23), and the other end is detachably connected to the fixture (26); the left end of the connection between the box body (21) and the main shaft (22) is rotatably connected through a first bearing (24), and the right end is rotatably connected through a second bearing (25).

2. The CNC lathe headstock according to claim 1, wherein: A first bearing cover (27) is provided on the main shaft (22) between the pulley (23) and the box body (21); a first end cover (28) is provided on the main shaft (22) at the left end of the pulley (23); a second end cover (29) is provided on the main shaft (22) at the right end of the box body (21).

3. The spindle box of the numerically controlled lathe according to claim 1, characterized in that: The fixture (26) includes a disc body (261) and clamping jaws (262); four clamping jaws (262) are provided and are evenly distributed on the front end face of the disc body (261); the clamping jaws (262) can approach and move away from the center of the disc body (261).

4. The headstock of the CNC lathe according to claim 3, characterized in that: The upper end of the clamping jaw (262) is stepped, and the vertical surface of the step is an arc surface.

5. The spindle box of the numerically controlled lathe according to claim 4, characterized in that: Chute grooves (2621) are symmetrically opened at the lower end of the clamping jaw (262).

6. The headstock of the CNC lathe according to claim 4, wherein: A number of horizontal grooves (2622) are opened on the arc surface; the horizontal grooves (2622) are triangular.

7. A numerically controlled lathe, characterized in that: It includes the numerically controlled lathe main spindle box (2) and the lathe body (1) as described in any one of claims 1-6; the numerically controlled lathe main spindle box is detachably connected to the upper end of the lathe body (1); the motor on the lathe body (1) is drivingly connected to the pulley (23) on the numerically controlled lathe main spindle box through a belt.

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