CN219026741U

CN219026741U - Clamp for machining workpiece with arc-shaped bottom surface assisted by milling machine

Info

Publication number: CN219026741U
Application number: CN202320097868.2U
Authority: CN
Inventors: 张�荣
Original assignee: Wuhan Donghu University
Current assignee: Wuhan Donghu University
Priority date: 2023-02-01
Filing date: 2023-02-01
Publication date: 2023-05-16
Anticipated expiration: 2033-02-01

Abstract

The utility model discloses a clamp for machining an arc-shaped bottom surface workpiece assisted by a milling machine, which comprises a clamp main body, wherein double-line screws are connected between inner walls of two sides of the clamp main body through bearings, two moving blocks are connected to the outer parts of the double-line screws through threads, a clamping plate I and a clamping plate II are connected to the tops of the two moving blocks through bolts respectively, a workpiece body is arranged between the clamping plate I and the clamping plate II, a supporting block is arranged at the bottom of the workpiece body, an arc surface is arranged at the top of the supporting block, and the arc surface is matched with the outer wall of the bottom of the workpiece body. According to the milling device, the double-line screw rod, the supporting block, the first clamping plate and the second clamping plate are arranged, the first clamping plate and the second clamping plate are driven to clamp and fix the workpiece body through rotation of the double-line screw rod, and the supporting block is used for supporting the workpiece body, so that the workpiece cannot move downwards when being subjected to milling stress, and the milling precision of the workpiece is improved.

Description

Clamp for machining workpiece with arc-shaped bottom surface assisted by milling machine

Technical Field

The utility model relates to the technical field of clamps, in particular to a clamp for machining an arc-shaped bottom surface workpiece assisted by a milling machine.

Background

Milling machines mainly refer to machine tools for machining various surfaces of a workpiece by using milling cutters. The rotary motion of the milling cutter is usually the dominant motion, and the movement of the workpiece and the milling cutter is the feed motion. It can be used for machining plane and groove, and also can be used for machining various curved surfaces and gears, etc. The milling machine is a machine tool for milling a workpiece by using a milling cutter, and when the milling machine is used for machining the workpiece, a fixture is required to be used for fixing the workpiece.

Chinese patent No. 202121815841.X provides a milling machine fixture, including the backing plate, clamping device and rotary device, the backing plate upper end bilateral symmetry is equipped with the fixing base, and the backing plate bilateral symmetry is equipped with the side riser, and the backing plate is located side riser middle section part, and clamping device is including passing the inside guide cylinder of side riser and fixing base in proper order, sets up chuck and the protective sheath at the guide cylinder both ends respectively, and passes the protective sheath in proper order, and the lead screw that guide cylinder and chuck are connected, the chuck is kept away from the side riser setting and is located the fixing base inside, and rotary device includes the pivot of passing the backing plate, and the electromagnetic chuck and the bearing of cover both ends about the pivot respectively, electromagnetic chuck is located the backing plate upper end, the bearing is located the backing plate inside.

When the milling machine fixture clamps and fixes a workpiece with an arc bottom surface, the workpiece with the arc bottom surface is in a suspended state, and when the upper surface of the workpiece is subjected to downward cutting force, the bottom of the workpiece cannot be supported and can be displaced, so that the machining precision of the workpiece is reduced. Therefore, there is a need to design a fixture for milling machine assisted arc-shaped bottom surface workpiece processing to solve the above problems.

Disclosure of Invention

The utility model aims to provide a fixture for processing an arc-shaped bottom surface workpiece assisted by a milling machine, which aims to solve the defects in the prior art.

In order to achieve the above object, the present utility model provides the following technical solutions:

the utility model provides a milling machine assists anchor clamps for arc bottom surface work piece processing, includes the anchor clamps main part, there is the double-circuit screw through bearing connection between the both sides inner wall of anchor clamps main part, there are two kinematic blocks outside through threaded connection, two the top of kinematic block has splint one and splint two through bolted connection respectively, be provided with the work piece body between splint one and the splint two, the bottom of work piece body is provided with the supporting shoe, the top of supporting shoe is provided with the arc surface, the bottom outer wall adaptation of arc surface and work piece body, the bottom of anchor clamps main part is provided with the drain pan, the bottom inner wall of drain pan is connected with the center pin through the bearing, the top and the anchor clamps main part welding of center pin, the outside welding of center pin has the worm wheel, there is the worm through bearing connection between the both sides inner wall of drain pan, worm and worm wheel meshing, the outside welding that one end of worm extends to the drain pan has the hand wheel, one side outer wall welding of drain pan has the spliced pole, the spliced pole extends to the inside of spacer cylinder, the top outer wall of spacer cylinder has the nut through threaded connection.

Further, the one end of double-circuit screw extends to the outside welding of anchor clamps main part and has rotatory piece, the one side outer wall of rotatory piece is provided with six arris holes.

Further, slide rails are connected between the inner walls of the two sides of the clamp main body through bolts, and the moving blocks are in sliding connection with the slide rails.

Further, the mounting plates are welded on the outer walls of the two sides of the bottom shell, and mounting holes are formed in the outer walls of the top of the mounting plates.

In the technical scheme, the fixture for processing the workpiece with the arc-shaped bottom surface assisted by the milling machine has the beneficial effects that:

(1) Through the double-circuit screw rod, supporting shoe, splint one and splint two that set up, the rotation through the double-circuit screw rod drives splint one and splint two and carry out the centre gripping fixedly to the work piece body to utilize the supporting shoe to support the work piece body, make the work piece can not appear the phenomenon of downwardly moving when milling the atress, and then make the precision of milling of work piece obtain improving.

(2) Through worm and the worm wheel that sets up, utilize the rotation of worm to drive worm wheel and center pin and rotate for the center pin can drive anchor clamps main part and anchor clamps and rotate, and then makes the work piece more convenient when carrying out the adjustment direction.

(3) Through the locking bolt and the nut that set up, utilize locking bolt and nut to carry out threaded connection for locking bolt can extrude the fixed to the center shaft, and then makes the worm can not take place to rotate under free state, makes the locking after the work piece direction adjustment more stable.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic view of the overall structure of a fixture for milling machine assisted arc-shaped bottom work piece processing according to an embodiment of the present utility model.

Fig. 2 is a schematic diagram of a double-path screw structure provided by an embodiment of a fixture for processing an arc-shaped bottom surface workpiece assisted by a milling machine.

Fig. 3 is a schematic diagram of an inner structure of a bottom shell provided by an embodiment of a fixture for processing an arc-shaped bottom surface workpiece assisted by a milling machine.

Reference numerals illustrate:

the fixture comprises a fixture main body 1, a clamping plate I, a clamping plate II, a workpiece main body 4, a supporting block 5, an arc surface 6, a double-line screw rod 7, a moving block 8, a rotating block 9, a hexagonal hole 10, a central shaft 11, a worm wheel 12, a worm 13, a hand wheel 14, a mounting plate 15, a mounting hole 16, a sliding rail 17, a positioning cylinder 18, a connecting column 19, a nut 20, a locking bolt 21 and a bottom shell 22.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.

As shown in fig. 1-3, the clamp for machining an arc-shaped bottom surface workpiece assisted by a milling machine provided by the embodiment of the utility model comprises a clamp main body 1, wherein double-line screws 7 are connected between inner walls of two sides of the clamp main body 1 through bearings, two moving blocks 8 are connected to the outer parts of the double-line screws 7 through threads, a clamping plate I2 and a clamping plate II 3 are connected to the tops of the two moving blocks 8 through bolts respectively, a workpiece main body 4 is arranged between the clamping plate I2 and the clamping plate II 3, a supporting block 5 is arranged at the bottom of the workpiece main body 4, an arc surface 6 is arranged at the top of the supporting block 5, and the arc surface 6 is matched with the outer wall of the bottom of the workpiece main body 4.

Specifically, in this embodiment, including anchor clamps main part 1, anchor clamps main part 1 inside has the cavity, be connected with double-circuit screw 7 through the bearing between the both sides inner wall of anchor clamps main part 1, double-circuit screw 7 has two screw thread lines opposite in spiral direction, there are two movable blocks 8 outside through threaded connection of double-circuit screw 7, there are splint one 2 and splint two 3 at the top of two movable blocks 8 respectively through bolted connection, when double-circuit screw 7 rotates, splint one 2 and splint two 3 are close to each other or keep away from each other, be provided with work piece body 4 between splint one 2 and splint two 3, work piece body 4 is for waiting to process work piece blank that has the arc bottom surface, the bottom of work piece body 4 is provided with supporting shoe 5, the top of supporting shoe 5 is provided with circular arc surface 6, circular arc surface 6 and the bottom outer wall adaptation of work piece body 4, utilize supporting shoe 5 that has circular arc surface 6 to support work piece body 4, the bottom can not appear because of moving when the atress that the unsettled results in, one end of double-circuit screw 7 extends to the outside welding of anchor clamps main part 1 has rotatory piece 9, worm wheel 9, six sides of worm wheel 9 are provided with six flange 10 to drive the side of worm wheel and side, the inner wall 1 is equipped with the flange 10 and is rotated to the center pin 11, the center pin 11 is rotated to the center pin 11 through the center pin 11, the inner pin 11 is connected with the center pin 11, the bottom profile 12 is rotated to the center pin 11, the center pin 11 is rotated to the center pin 11, the bottom profile is rotated to the center pin is arranged at the bottom of the center pin 11, the bottom of the center pin 11 is connected with the center pin 11, and is convenient side, and is connected with the bottom profile hole 11, and is rotated, and is connected with the bottom profile 11, one end of the worm 13 extends to the outside welding of the bottom shell 22 and has the hand wheel 14, utilize the hand wheel 14 to conveniently rotate worm 13, one side outer wall welding of bottom shell 22 has a positioning tube 18, one end integrated into one piece of worm 13 has spliced pole 19, the center of spliced pole 19 and the center coincidence of worm 13, spliced pole 19 extends to the inside of positioning tube 18, drive spliced pole 19 and rotate when making worm 13 rotate, the top outer wall welding of positioning tube 18 has nut 20, nut 20's inside has lock bolt 21 through threaded connection, utilize lock bolt 21 and nut 20 to carry out threaded connection, make lock bolt 21 can extrude fixedly to center pin 11, and then make worm 13 can not take place to rotate under the free state, make the locking after the work piece direction adjustment more stable.

According to the clamp for milling machine auxiliary arc-shaped bottom surface workpiece processing, the clamping plate I2 and the clamping plate II 3 are driven to clamp and fix the workpiece body 4 through the rotation of the double-line screw 7 through the double-line screw 7, the supporting block 5, and the supporting block 5 is utilized to support the workpiece body 4, so that the workpiece cannot move downwards when being subjected to milling stress, and the milling precision of the workpiece is improved.

In another embodiment provided by the utility model, the slide rails 17 are connected between the inner walls of the two sides of the clamp main body 1 through bolts, the moving block 8 is in sliding connection with the slide rails 17, and the moving block 8 is in sliding connection with the slide rails 17, so that the moving block 8 is more stable in movement.

In another embodiment provided by the utility model, the mounting plates 15 are welded on the outer walls of the two sides of the bottom shell 22, the mounting holes 16 are formed on the outer wall of the top of the mounting plate 15, and the mounting plate 15 is conveniently mounted on a workbench of a milling machine through bolts by using the mounting holes 16.

Working principle: mounting plate 15 is mounted on a workbench of a milling machine through bolts, when workpiece body 4 is required to be fixed, two supporting blocks 5 are placed on the top of clamp main body 1, then workpiece body 4 is placed on the top of supporting blocks 5, the workpiece body 4 is inserted into hexagonal hole 10 through a hexagonal wrench and rotates rotating block 9, double-line screw 7 rotates, so that double-line screw 7 drives two moving blocks 8 to be close to each other, clamp plate one 2 and clamp plate two 3 clamp and fix workpiece body 4, in the process of clamp plate one 2 and clamp plate two 3 clamp and fix workpiece body 4, aluminum bars are adopted to knock the upper surface of workpiece body 4, so that the outer wall of the bottom of workpiece body 4 is in contact with arc surface 6 of supporting block 5, and further supporting block 5 can play a stable supporting role on workpiece body 4; when the direction of the workpiece body 4 needs to be adjusted, the hand wheel 14 rotates, the hand wheel 14 drives the worm 13 to rotate, the worm 13 drives the worm wheel 12 and the central shaft 11 to rotate, the central shaft 11 drives the clamp body 1 and the workpiece body 4 to rotate, the direction of the workpiece body 4 is adjusted, then the locking bolt 21 rotates, the locking bolt 21 abuts against the connecting column 19 to be fixed, free rotation of the worm 13 is prevented, and the direction of the workpiece body 4 is locked.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

Claims

1. The utility model provides a clamp for milling machine auxiliary arc bottom surface work piece processing, its characterized in that, including clamp main part (1), be connected with double-circuit screw rod (7) through the bearing between the both sides inner wall of clamp main part (1), the outside of double-circuit screw rod (7) is through threaded connection there being two kinematic blocks (8), two the top of kinematic block (8) is respectively through bolted connection there being splint one (2) and splint two (3), be provided with work piece body (4) between splint one (2) and splint two (3), the bottom of work piece body (4) is provided with supporting shoe (5), the top of supporting shoe (5) is provided with arc surface (6), the bottom of arc surface (6) and work piece body (4) outer wall adaptation, the bottom of clamp main part (1) is provided with drain pan (22), the bottom inner wall of drain pan (22) is connected with center pin (11) through the bearing, the top and clamp main part (1) welding of center pin (11), the outside welding of center pin (11) has worm wheel (12), be provided with between worm wheel (22) and worm (13) are connected with worm (13) through bearing (13) to one end of extension worm (13), one side outer wall welding of drain pan (22) has a positioning tube (18), one end integrated into one piece of worm (13) has spliced pole (19), spliced pole (19) extend to the inside of positioning tube (18), the top outer wall welding of positioning tube (18) has nut (20), the inside of nut (20) has locking bolt (21) through threaded connection.

2. The fixture for machining the workpiece with the arc-shaped bottom surface assisted by the milling machine according to claim 1, wherein a rotating block (9) is welded outside the fixture main body (1) from one end of the double-line screw (7), and a hexagonal hole (10) is formed in the outer wall of one side of the rotating block (9).

3. The fixture for machining the workpiece with the arc-shaped bottom surface assisted by the milling machine according to claim 1, wherein sliding rails (17) are connected between the inner walls of the two sides of the fixture main body (1) through bolts, and the moving block (8) is in sliding connection with the sliding rails (17).

4. The fixture for machining the workpiece with the arc-shaped bottom surface assisted by the milling machine according to claim 2, wherein mounting plates (15) are welded on the outer walls of the two sides of the bottom shell (22), and mounting holes (16) are formed in the outer wall of the top of each mounting plate (15).