CN223933134U - Adjustable tool of general numerical control lathe - Google Patents

Abstract

This utility model discloses an adjustable fixture for a general-purpose CNC lathe, including an assembly base. The top side of the assembly base has grooves around its perimeter, and L-shaped clamping plates are slidably arranged within these grooves. Two sets of symmetrically arranged L-shaped clamping plates have movable slots on their horizontal ends, and extension plates are slidably arranged within these slots. T-shaped threaded sleeves are fixedly connected to the inner side of the extension plates. A screw rod, which engages with the threaded sleeve, is rotatably mounted on the assembly base. In this utility model, the workpiece with a round hole is first internally supported until the L-shaped clamping plate abuts against the hole wall on the short axis of the elliptical hole. Then, a second motor drives a worm gear to rotate forward, which in turn drives a worm wheel to rotate a transmission shaft and a driving bevel gear. This, in turn, drives the driven bevel gears on both sides to rotate the screw rods on both sides, thereby driving the threaded sleeve to move the extension plate outward until the extension plate abuts against the hole wall on the long axis of the elliptical hole. This internally supports, positions, and clamps the workpiece with the elliptical hole, improving the versatility of the device.

Description

Adjustable tool of general numerical control lathe

Technical Field

The utility model relates to the technical field of lathe tools, in particular to an adjustable tool of a universal numerical control lathe.

Background

The lathe tool is a generic name of various fixtures and devices used for fixing, clamping, positioning, supporting and assisting cutting operations on an index control lathe, is an indispensable part of the numerical control lathe in the machining process, and the quality and the using effect of the lathe tool are directly related to the machining quality and the production efficiency.

When the outer surface is turned, in order to avoid damage to the tool caused by collision between the clamp and the tool, an internal support mode is generally adopted to fix the workpiece. However, although the existing internal bracing type tool can adapt to the clamping requirements of cylindrical workpieces with different diameters, in practical application, when the workpiece with an elliptical inner hole is encountered, the tool is difficult to realize effective internal bracing positioning and clamping, and the defect of universality is shown.

Disclosure of utility model

The utility model aims to solve the technical problems in the background art, and provides an adjustable tool of a general numerical control lathe.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The utility model provides an adjustable frock of general type numerical control lathe, includes the assembly seat, the spout has been seted up all around to the assembly seat top side, has slided and has been laid L shape splint in the spout, wherein has seted up the movable groove on the horizontal end of the L shape splint that two sets of symmetries set up, and slided and have laid the extension board in the movable groove, the inboard fixedly connected with T shape swivel nut of extension board, the screw rod that closes the connection soon with the swivel nut is installed to the rotation on the assembly seat, fixedly connected with passes the guide arm of swivel nut horizontal end both sides on the spout, offer the groove of stepping down that holds screw rod, extension board, guide arm and swivel nut pass through on the horizontal end of L shape splint.

As a further description of the above technical solution:

The free end fixed cover of screw rod in both sides is equipped with driven bevel gear, rotate on the baffle and install the transmission shaft, fixed cover is equipped with the initiative bevel gear of being connected with the driven bevel gear meshing in both sides on the transmission shaft, both sides the screw thread spiral direction of screw rod is opposite.

As a further description of the above technical solution:

The baffle is fixedly provided with a first motor, a worm wheel is fixedly sleeved on the transmission shaft, and an output shaft of the first motor is in transmission connection with a worm in meshed connection with the worm wheel.

As a further description of the above technical solution:

The assembly seat is fixedly provided with a second motor, an output shaft of the second motor is fixedly sleeved with a rotating plate, an arc-shaped linkage groove extending outwards and inwards is formed in the rotating plate, a round rod is connected in the linkage groove in a sliding mode, a waist-shaped groove for accommodating the round rod to penetrate through is formed in the partition plate, and the round rod is fixedly connected with the L-shaped clamping plate.

As a further description of the above technical solution:

The square groove communicated with the sliding groove is formed in the top of the assembly seat, the square rod is arranged in the square groove in a sliding mode, and two ends of the square rod are fixedly connected with the round rod and the L-shaped clamping plate respectively.

As a further description of the above technical solution:

The vertical end and the extension plate of the L-shaped clamping plate are arc-shaped plates.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

1. When the elliptical hole workpiece is internally supported, the circular hole workpiece is internally supported until the L-shaped clamping plate is abutted against the hole wall on the minor axis of the elliptical hole, then the worm is driven by the second motor to rotate positively, the worm drives the worm wheel to drive the transmission shaft and the driving bevel gear to rotate, the driven bevel gears on two sides are driven to drive the two side screw rods to rotate according to the gear meshing transmission principle, and the driving screw sleeve drives the extension plate to move outwards according to the thread transmission principle until the extension plate is abutted against the hole wall on the major axis of the elliptical hole, so that the elliptical hole workpiece is internally supported, positioned and clamped, and the universality of the elliptical hole workpiece is improved.

2. According to the utility model, the second motor drives the rotating plate to rotate clockwise, and under the linkage action of the linkage groove and the sliding rod, the square rod is driven to drive the L-shaped clamping plate to synchronously move outwards, so that the circular hole workpiece is internally supported, positioned and clamped.

Drawings

Fig. 1 shows a schematic diagram of an internal structure of an adjustable tool of a universal numerically controlled lathe according to an embodiment of the present utility model;

FIG. 2 shows an enlarged schematic view at A in FIG. 1;

FIG. 3 shows a schematic cross-sectional view of an L-shaped cleat provided in accordance with an embodiment of the present utility model;

FIG. 4 shows a schematic cross-sectional view of a mount provided in accordance with an embodiment of the present utility model;

fig. 5 shows a schematic perspective view of an adjustable tool of a universal numerically controlled lathe according to an embodiment of the present utility model.

Legend description:

1. The device comprises an assembly seat, 101, a sliding chute, 102, a square groove, 103, a waist-shaped groove, 2, an L-shaped clamping plate, 201, a movable groove, 202, a yielding groove, 3, a screw rod, 4, a driven bevel gear, 5, a driving bevel gear, 6, a transmission shaft, 7, a worm wheel, 8, a first motor, 9, a worm, 10, a square rod, 11, a round rod, 12, a rotating plate, 1201, a linkage groove, 13, a second motor, 14, an extension plate, 15, a guide rod, 16 and a screw sleeve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the utility model provides an adjustable tool of a general numerical control lathe, which comprises an assembly seat 1, wherein a chute 101 is formed around the top side of the assembly seat 1, an L-shaped clamping plate 2 is arranged in a sliding manner in the chute 101, the vertical end of the L-shaped clamping plate 2 is an arc-shaped plate, a second motor 13 is fixedly installed on the assembly seat 1, a rotating plate 12 is fixedly sleeved on an output shaft of the second motor 13, an arc-shaped linkage groove 1201 extending from outside to inside is formed in the rotating plate 12, a round rod 11 is connected in the linkage groove 1201 in a sliding manner, a waist-shaped groove 103 for accommodating the round rod 11 to penetrate is formed in a partition plate, the round rod 11 is fixedly connected with the L-shaped clamping plate 2, a square groove 102 communicated with the chute 101 is formed in the top of the assembly seat 1, a square rod 10 is arranged in a sliding manner in the square groove 102, and the two ends of the square rod 10 are respectively fixedly connected with the round rod 11 and the L-shaped clamping plate 2. The second motor 13 drives the rotating plate 12 to rotate clockwise, and under the linkage action of the linkage groove 1201 and the sliding rod 11, the square rod 10 is driven to drive the L-shaped clamping plate 2 to synchronously move outwards, so that the circular hole workpiece is internally supported, positioned and clamped.

Specifically, as shown in fig. 1-3, a movable groove 201 is formed in the horizontal end of two groups of symmetrically-arranged L-shaped clamping plates 2, an arc-shaped extension plate 14 is arranged in the movable groove 201 in a sliding mode, a T-shaped screw sleeve 16 is fixedly connected to the inner side of the extension plate 14, a screw rod 3 which is in screwed connection with the screw sleeve 16 is rotatably mounted on the assembly seat 1, guide rods 15 which penetrate through two sides of the horizontal end of the screw sleeve 16 are fixedly connected to the sliding groove 101, a yielding groove 202 which is used for accommodating the screw rod 3, the extension plate 14, the guide rods 15 and the screw sleeve 16 and is used for passing through is formed in the horizontal end of the L-shaped clamping plates 2, movement of the L-shaped clamping plates 2 is not interfered, driven bevel gears 4 are fixedly sleeved at the free ends of the screw rods 3 at two sides, a transmission shaft 6 is rotatably mounted on the partition plate, a driving bevel gear 5 which is in meshed connection with the driven bevel gears 4 at two sides is fixedly sleeved on the transmission shaft 6, a worm wheel 7 is fixedly mounted on the partition plate, a worm 9 which is in meshed connection with the worm wheel 7 is fixedly sleeved on the transmission shaft 6 at the transmission shaft 8. When the elliptical hole workpiece is internally supported, the circular hole workpiece is internally supported until the front and rear L-shaped clamping plates 2 (in the direction shown in fig. 1) are in butt joint with the hole wall on the short shaft of the elliptical hole, then the worm 9 is driven by the second motor 8 to rotate positively, the worm 9 drives the worm wheel 7 to drive the transmission shaft 6 and the driving bevel gear 5 to rotate, the driven bevel gears 4 on two sides are driven to drive the two side screw rods 3 to rotate according to the gear meshing transmission principle, the driving screw sleeve 16 drives the extension plate 14 to move outwards according to the thread transmission principle until the extension plate 14 is in butt joint with the hole wall on the long shaft of the elliptical hole, and the elliptical hole workpiece is internally supported, positioned and clamped, so that the universality of the elliptical hole workpiece is improved.

When the working principle is used, firstly, the round hole workpiece is internally supported, positioned and clamped, the second motor 13 drives the rotating plate 12 to rotate clockwise, and under the linkage action of the linkage groove 1201 and the slide rod 11, the square rod 10 is driven to drive the L-shaped clamping plate 2 to synchronously move outwards until the L-shaped clamping plate 2 is abutted against the hole wall;

Secondly, when the elliptical hole workpiece is internally supported, the circular hole workpiece is internally supported until the front and rear L-shaped clamping plates 2 (in the direction shown in fig. 1) are abutted against the hole wall on the short shaft of the elliptical hole, then the worm 9 is driven by the second motor 8 to rotate positively, the worm 9 drives the worm wheel 7 to drive the transmission shaft 6 and the driving bevel gear 5 to rotate, the driven bevel gears 4 on two sides are driven to drive the two side screw rods 3 to rotate according to the gear meshing transmission principle, the driving screw sleeve 16 drives the extension plate 14 to move outwards according to the thread transmission principle until the extension plate 14 is abutted against the hole wall on the long shaft of the elliptical hole, and the elliptical hole workpiece is internally supported, positioned and clamped, so that the universality of the elliptical hole workpiece is improved.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (6)

1. The utility model provides an adjustable frock of general numerical control lathe, includes assembly seat (1), its characterized in that, spout (101) have been seted up all around to assembly seat (1) top side, have been laid L shape splint (2) in the spout (101), wherein two sets of symmetrical L shape splint (2) of setting are served and are seted up movable groove (201), have been laid extension board (14) in the movable groove (201) are gone up in the slip, the inboard fixedly connected with T shape swivel nut (16) of extension board (14), screw rod (3) that are connected with swivel nut (16) are installed in the rotation on assembly seat (1), fixedly connected with passes guide arm (15) of swivel nut (16) horizontal end both sides on spout (101), hold screw rod (3), extension board (14), guide arm (15) and the groove (202) of stepping down that swivel nut (16) pass through have been seted up on the horizontal end of L shape splint (2).

2. The adjustable tool of the universal numerical control lathe according to claim 1, wherein driven bevel gears (4) are fixedly sleeved at the free ends of the screw rods (3) at two sides, a transmission shaft (6) is rotatably installed on a partition plate, a driving bevel gear (5) in meshed connection with the driven bevel gears (4) at two sides is fixedly sleeved on the transmission shaft (6), and threads of the screw rods (3) at two sides are opposite in rotation direction.

3. The adjustable tool of the universal numerical control lathe according to claim 2, wherein a first motor (8) is fixedly installed on the partition board, a worm wheel (7) is fixedly sleeved on the transmission shaft (6), and an output shaft of the first motor (8) is in transmission connection with a worm (9) in meshed connection with the worm wheel (7).

4. The adjustable tool of the universal numerical control lathe according to claim 3, wherein a second motor (13) is fixedly installed on the assembly seat (1), a rotating plate (12) is fixedly sleeved on an output shaft of the second motor (13), an arc-shaped linkage groove (1201) extending outwards and inwards is formed in the rotating plate (12), a round rod (11) is connected in the linkage groove (1201) in a sliding mode, a waist-shaped groove (103) for accommodating the round rod (11) to penetrate through is formed in the partition plate, and the round rod (11) is fixedly connected with the L-shaped clamping plate (2).

5. The adjustable tool of the universal numerical control lathe according to claim 4, wherein a square groove (102) communicated with the sliding groove (101) is formed in the top of the assembly seat (1), a square rod (10) is arranged in the square groove (102) in a sliding mode, and two ends of the square rod (10) are fixedly connected with the round rod (11) and the L-shaped clamping plate (2) respectively.

6. The adjustable tool of the universal numerically controlled lathe according to claim 5, wherein the vertical end of the L-shaped clamping plate (2) and the extending plate (14) are arc-shaped plates.