CN222843601U

CN222843601U - Clamping device for shaft body casting machining

Info

Publication number: CN222843601U
Application number: CN202421792800.7U
Authority: CN
Inventors: 彭传辉; 彭霞; 唐俊五; 肖成光
Original assignee: Jiahe Xiongda Casting Co ltd
Current assignee: Jiahe Xiongda Casting Co ltd
Priority date: 2024-07-28
Filing date: 2024-07-28
Publication date: 2025-05-09
Anticipated expiration: 2034-07-28

Abstract

The utility model discloses a clamping device for shaft casting processing, which relates to the field of machining and comprises a base, wherein a supporting ring is fixedly connected to the top surface of the base, three first threaded rods are arranged on the supporting ring in a radial sliding mode, three evenly-distributed notches are formed in the supporting ring, threaded sleeves are arranged in the notches in a rotating mode, a synchronous rotation driving mechanism for driving a plurality of threaded sleeves is arranged on the supporting ring, one end portion of each threaded rod is fixedly connected with a pressing support, the end portion of the pressing support is fixedly connected with a gasket, second threaded rods are arranged on the gasket, nuts are connected with the second threaded rods in a threaded mode, the nuts are arranged in the pressing supports, clamping plates are fixedly connected to the two end portions of the threaded rods, springs are fixedly arranged between the clamping plates and the gaskets, and a limiting structure for limiting the two-axial rotation of the threaded rods is arranged between the clamping plates and the gaskets. The first threaded rod is driven to slide through the driving device, the nut is rotated to adjust the spring, and the clamping force is controlled.

Description

Clamping device for shaft body casting machining

Technical Field

The utility model belongs to the technical field of machining, and particularly relates to a clamping device for shaft body casting machining.

Background

In machining, the shaft must be brought to a correct position on the machine tool or in the fixture before machining, a process called positioning. In order to prevent the well positioned shaft body from displacing under the action of cutting force, the shaft body is always kept at a correct position in the machining process, and the shaft body is tightly pressed and clamped, which is called clamping. The whole process of positioning and clamping is called clamping together, and the shaft body is required to be clamped and fixed by using a clamping device and then subjected to deep processing. Therefore, the clamping device for shaft body processing is a device for clamping the shaft body during processing.

In the prior art, the device usually adopts a fan-shaped soft claw to complete clamping and fixing of the shaft body, but the clamping mode has limitation, the clamping force is controlled by using a manual chuck as far as possible depending on experience of operators, and the clamping force is difficult to control for different machining.

Therefore, we propose a clamping device for shaft casting processing to solve the problems.

Disclosure of utility model

The utility model aims to solve the problem of controlling the clamping force of the existing shaft body fixing device in the prior art, and provides a clamping device for shaft body casting processing.

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

The utility model provides a clamping device is used in shaft body casting processing, includes the base, base top surface fixedly connected with supporting ring, radial slip is provided with three threaded rod one on the supporting ring three evenly distributed's notch has been seted up on the supporting ring, the notch internal rotation is provided with the thread bush, thread bush and threaded rod one threaded connection, be equipped with on the supporting ring and be used for driving a plurality of thread bushes synchronous rotation actuating mechanism, threaded rod one end fixedly connected with supports the pressure support, support end fixedly connected with gasket supports, be provided with threaded rod two on the gasket, threaded rod two threaded connection has the nut, the nut is in supporting the pressure support, threaded rod two end fixedly connected with splint, fixedly provided with spring between splint and the gasket, be provided with the limit structure that is used for restricting threaded rod two axial pivoted between splint and the pad.

Preferably, the driving mechanism comprises a toothed ring rotatably arranged on the supporting ring, a gear is fixedly sleeved outside the threaded sleeve, and the gear is in meshed connection with the toothed ring.

Preferably, the limit structure comprises two sliding sheets fixedly connected with the gasket and a supporting rod fixedly connected with the convex surface of the clamping plate, and the sliding sheets are in sliding connection with the supporting rod.

Preferably, the first outer wall of the threaded rod is axially provided with a groove, the outer wall of the supporting ring is provided with a mounting hole, the first threaded rod penetrates through the mounting hole, the inner wall of the mounting hole is fixedly provided with a convex block matched with the groove, and the groove is in sliding connection with the convex block.

Preferably, the clamping plate is an arc-shaped plate, the convex surface of the clamping plate is fixedly connected with the threaded rod II, and the clamping surface of the clamping plate is fixedly provided with a rubber pad.

Preferably, a handle is fixedly connected to one side of the toothed ring away from the supporting ring.

Preferably, the mounting groove is formed in the outer peripheral surface of the toothed ring, three supporting frames are fixedly arranged on the supporting ring, and the supporting frames are clamped into the mounting groove and are in sliding connection with the mounting groove.

Compared with the prior art, the utility model has the following advantages:

According to the utility model, the support ring, the first threaded rod, the threaded sleeve, the gear, the pressing support and the toothed ring are arranged, the handle is rotated to drive the toothed ring, the gear and the threaded sleeve to rotate, so that the first threaded rod slides to drive the pressing support to move, and the clamping plate can clamp the shaft body. Through setting up nut, gasket, spring and screw thread post two, support motion is supported in the pressure, makes the gasket slip, compresses the spring, plays the effect of control clamping force size. The problem of the manual work is not good to control clamping force size is solved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a clamping device for shaft casting processing;

Fig. 2 is a schematic diagram of a limiting structure in a clamping device for shaft casting processing;

Fig. 3 is a schematic diagram of a threaded sleeve structure in a clamping device for shaft casting processing according to the present utility model;

FIG. 4 is a schematic diagram of a groove and a bump in a clamping device for casting shaft body according to the present utility model;

1, a base, 2, a supporting ring, 3, a notch, 4, a threaded sleeve, 5, a first threaded rod, 6, a pressing support, 7, a second threaded rod, 8, a nut, 9, a gasket, 10, a spring, 11, a clamping plate, 12, a toothed ring, 13, a mounting groove, 14, a supporting frame, 15, a handle, 16, a gear, 17, a groove, 18, a sliding sheet, 19, a supporting rod, 20, a convex block, 21 and a mounting hole.

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.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the utility model.

Referring to fig. 1-3, a clamping device for shaft casting processing comprises a base 1, wherein a supporting ring 2 is fixedly connected to the top surface of the base 1, three first threaded rods 5 are radially arranged on the supporting ring 2 in a sliding mode, three evenly-distributed notches 3 are formed in the supporting ring 2, the shaft can be clamped in three directions at the same time, a threaded sleeve 4 is rotationally arranged in the notches 3, the threaded sleeve 4 is in threaded connection with the first threaded rods 5, and when the threaded sleeve 4 rotates, the first threaded rods 5 are driven to axially move.

The groove 17 has been seted up to threaded rod one 5 outer wall axial, has seted up mounting hole 21 on the support ring 2 outer wall, threaded rod one 5 runs through mounting hole 21, fixedly on the inner wall of mounting hole 21 be provided with groove 17 assorted lug 20, groove 17 and lug 20 sliding connection, lug 20 restriction threaded rod one 5 can not rotate, only can slide from top to bottom, is favorable to radially promoting to press support 6.

Referring to fig. 1, a supporting ring 2 is provided with a driving mechanism for driving a plurality of threaded sleeves 4 to synchronously rotate, and a plurality of threaded rods 5 can be controlled to synchronously move through the driving mechanism.

The driving mechanism comprises a toothed ring 12 which is arranged on the supporting ring 2 in a rotating way, a gear 16 is arranged on the outer fixed sleeve of the threaded sleeve 4, the gear 16 is meshed with the toothed ring 12, the toothed ring 12 rotates to drive the gear 16 which is meshed with the toothed ring to rotate, meanwhile, the threaded sleeve 4 which is fixedly connected with the gear 16 is driven to rotate, the first threaded rod 5 is enabled to move, the toothed ring 12 moves to drive the three gears 16 to synchronously move, and meanwhile, the three threaded sleeves 4 are driven to radially move together with the first threaded rod 5, so that the driving of the three threaded rods 5 to simultaneously move is facilitated, and the working efficiency is improved.

One side of the toothed ring 12 far away from the supporting ring 2 is fixedly connected with a handle 15, and the toothed ring 12 can be driven to rotate by rotating the handle 15, so that the operation of operators is facilitated.

The mounting groove 13 has been seted up to ring gear 12 outer peripheral face, is provided with three support frames 14 on the support ring 2 fixedly, and support frames 14 card is gone into in the mounting groove 13 and with mounting groove 13 sliding connection, carries out spacing to ring gear 12, makes ring gear 12 only can rotate in the fixed position to ensure that gear 16 and ring gear 12 meshing are connected.

Referring to fig. 2-4, the end part of the first threaded rod 5 is fixedly connected with the pressing support 6, the end part of the pressing support 6 is fixedly connected with the gasket 9, the second threaded rod 7 is arranged on the gasket 9, the end part of the second threaded rod 7 is fixedly connected with the clamping plate 11, the first threaded rod 5 moves to drive the pressing support 6 to move radially, the clamping plate 11 is driven to clamp the shaft body, the spring 10 is fixedly arranged between the clamping plate 11 and the gasket 9, when the spring 10 deforms, whether the clamping plate 11 is clamped or not is determined by observing deformation of the spring 10, the nut 8 is screwed on the second threaded rod 7, the nut 8 is screwed by an operator in the pressing support 6 to rotate along the second threaded rod 7, the spring 10 is compressed, the force required by deformation of the spring 10 is changed, the force required by deformation of the spring 10 is different when the clamping plate 11 clamps the shaft body, the clamping force is controlled by the operator, and a limiting structure for limiting axial rotation of the second threaded rod 7 is arranged between the clamping plate 11 and the gasket 9.

The limit structure comprises two sliding sheets 18 fixedly connected with the gasket 9 and a supporting rod 19 fixedly connected with the convex surface of the clamping plate 11, the sliding sheets 18 are in sliding connection with the supporting rod 19, an operator can drive the threaded rod II 7 to move when screwing the nut 8, meanwhile, the sliding sheets 18 can be driven to slide along the supporting rod 19, the sliding sheets 18 and the supporting rod 19 are used for limiting the threaded rod II 7 not to axially rotate, the stability of the threaded rod II 7 is guaranteed, and the threaded rod II 7 moves up and down along the supporting rod 19 when the nut 8 is adjusted.

The splint 11 is the arc, and the convex surface and the threaded rod second 7 fixed connection of splint 11, and the concave surface is the clamping face for splint 11 can laminate the outer peripheral surface profile of axle, increases the area of contact of centre gripping, is favorable to pressing from both sides the firm axis, and the clamping face of splint 11 is fixed to be provided with the rubber pad, prevents that splint 11 from destroying the axis surface.

The specific working principle of the utility model is as follows:

When the axle body needs to be clamped, the handle 15 is rotated firstly, the toothed ring 12 is driven to rotate under the limit of the three supporting frames 14, the toothed ring 12 moves to drive the three gears 16 to synchronously move, and simultaneously, the three threaded sleeves 4 are driven to drive the three threaded rods 5 to radially move together, the threaded rods 5 are lifted, the position of the pressing support 6 is changed, when the threaded rods 5 are lowered, the pressing support 6 is driven to slide downwards, the clamping plate 11 is pushed to clamp the axle body, the spring 10 is fixedly arranged between the clamping plate 11 and the gasket 9, when the spring 10 deforms, whether the clamping plate 11 is clamped or not is determined by observing the deformation of the spring 10, an operator screws the nut 8 to rotate along the threaded rods 7, the sliding sheet 18 is driven to slide along the supporting rods 19, when the sliding sheet 18 slides, the spring 10 is compressed, the force required by the deformation of the spring 10 is changed, the force required by the deformation of the spring 10 is different when the clamping plate 11 clamps the axle body, and the control of the clamping force of an operator is realized.

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

1. A clamping device for shaft casting processing, comprising a base (1), characterized in that a support ring (2) is fixedly connected to the top surface of the base (1), three threaded rods (5) are radially slidably arranged on the support ring (2), three evenly distributed notches (3) are opened on the support ring (2), a threaded sleeve (4) is rotatably arranged in the notch (3), the threaded sleeve (4) is threadedly connected to the threaded rod (5), the support ring (2) is provided with a driving mechanism for driving the multiple threaded sleeves (4) to rotate synchronously, and the threaded rod (5) is ) is fixedly connected to a pressure bracket (6) at its end, a gasket (9) is fixedly connected to the end of the pressure bracket (6), a threaded rod (7) is arranged on the gasket (9), a nut (8) is threadedly connected to the threaded rod (7), the nut (8) is inside the pressure bracket (6), a clamping plate (11) is fixedly connected to the end of the threaded rod (7), a spring (10) is fixedly arranged between the clamping plate (11) and the gasket (9), and a limiting structure for limiting the axial rotation of the threaded rod (7) is arranged between the clamping plate (11) and the gasket (9).

2. A clamping device for shaft casting processing according to claim 1, characterized in that the driving mechanism includes a gear ring (12) rotatably arranged on a support ring (2), and a gear (16) is provided on the outer fixed sleeve of the threaded sleeve (4), and the gear (16) is meshingly connected with the gear ring (12).

3. A clamping device for shaft casting processing according to claim 1, characterized in that the limiting structure includes two slides (18) fixedly connected to the gasket (9) and a support rod (19) fixedly connected to the convex surface of the clamp (11), and the slide (18) is slidably connected to the support rod (19).

4. A clamping device for shaft casting processing according to claim 1, characterized in that a groove (17) is axially opened on the outer wall of the threaded rod (5), a mounting hole (21) is opened on the support ring (2), the threaded rod (5) passes through the mounting hole (21), and a protrusion (20) matching the groove (17) is fixedly arranged on the inner wall of the mounting hole (21), and the groove (17) is slidably connected to the protrusion (20).

5. A clamping device for shaft casting processing according to claim 1, characterized in that the clamping plate (11) is an arc-shaped plate, the convex surface of the clamping plate (11) is fixedly connected to the threaded rod 2 (7), and the clamping surface of the clamping plate (11) is fixedly provided with a rubber pad.

6. A clamping device for shaft casting processing according to claim 2, characterized in that a handle (15) is fixedly connected to the side of the gear ring (12) away from the support ring (2).

7. A clamping device for shaft casting processing according to claim 2, characterized in that a mounting groove (13) is provided on the outer peripheral surface of the gear ring (12), three support frames (14) are fixedly arranged on the support ring (2), and the support frames (14) are inserted into the mounting groove (13) and slidably connected to the mounting groove (13).