CN211249217U

CN211249217U - Fixing clamp for milling machine

Info

Publication number: CN211249217U
Application number: CN201922286542.0U
Authority: CN
Inventors: 陶继超; 成立东
Original assignee: Wuxi Aierxin Precision Machinery Manufacturing Co ltd
Current assignee: Wuxi Aierxin Precision Machinery Manufacturing Co ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-08-14
Anticipated expiration: 2029-12-18

Abstract

The utility model relates to the technical field of milling machines, in particular to a fixed clamp for a milling machine, which has the technical proposal that a workpiece clamping groove is formed between an upper groove and a lower groove together; the top of butt joint piece is run through and is provided with the mounting hole, is provided with first lead screw in the mounting hole, and the mounting hole is worn out to the bottom of first lead screw and is connected with the fixed block, is provided with first ball on the first lead screw, and first ball is connected with the butt joint piece, is provided with on the butt joint piece to be used for driving first lead screw pivoted driving piece. Put into the low groove with the work piece in the space of fixed block and butt piece one side, rotate first lead screw, first lead screw drives first ball and rotates, and because first ball is connected with the butt piece, and under the limiting displacement of locating part, make first ball and butt piece produce the removal along the axial of first lead screw, thereby make the butt piece remove and accomplish the combination of upper groove and low groove to the fixed block direction, thereby can firmly fix the work piece, thereby can effectively improve the machining precision of milling machine.

Description

Fixing clamp for milling machine

Technical Field

The utility model belongs to the technical field of the milling machine technique and specifically relates to a mounting fixture for milling machine is related to.

Background

The milling machine mainly refers to a machine tool for processing various surfaces of a workpiece by using a milling cutter. Typically the milling cutter is moved primarily in a rotary motion and the movement of the workpiece and the milling cutter is a feed motion. The milling machine can mill planes, grooves, gear teeth, threads and spline shafts, can also process complex molded surfaces, has higher efficiency than a planer, and is widely applied to mechanical manufacturing and repairing departments. In addition, the method can be used for machining the surface and inner hole of the revolving body, cutting off the revolving body, and the like. When the milling machine works, a workpiece is arranged on a workbench or accessories such as an indexing head, the milling cutter rotates to move mainly, and the workpiece can obtain a required processing surface by the aid of the feeding motion of the workbench or the milling head. When a milling machine is used for milling a workpiece, the workpiece is accurately clamped on a clamp, and the clamping precision directly influences the machining precision.

The current chinese patent of No. CN206536251U discloses a milling machine fixture, including the base, the first fixed block of left side fixedly connected with at base top, the left axle center department fixedly connected with motor of first fixed block inner chamber, the first threaded rod of output fixedly connected with of motor, the surface cover of first threaded rod is equipped with the screwed pipe, the outside of first fixed block and extension to first fixed block is run through on the right side of screwed pipe. During the use, place the work piece between first splint and second splint, the operation of controller control motor, the motor drives the screwed pipe through first threaded rod and removes, and the screwed pipe drives first connecting block and first splint and removes, presss from both sides tightly the work piece.

However, the above prior art solutions have the following drawbacks: the workpiece is compressed by moving the first clamping plate, but the pressure of the moving pressing plate is not easy to control and is determined completely by the feeling of an operator, the workpiece is not easy to be accurately positioned, the positioning precision of the workpiece is difficult to ensure, and the machining precision of the milling machine is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can effectively improve milling machine mounting fixture for milling machine of milling machine machining precision.

The above object of the present invention is achieved by the following technical solutions:

a fixed clamp for a milling machine comprises a milling machine body and a workbench arranged on the milling machine body, wherein a base is arranged on the workbench, a fixed block is arranged on the base, a lower groove is formed in the top surface of the fixed block, a butting block is arranged above the fixed block, an upper groove corresponding to the upper groove is formed in the bottom surface of the butting block, and a workpiece clamping groove is formed between the upper groove and the lower groove; the top of butt joint piece is run through and is provided with the mounting hole, be provided with first lead screw in the mounting hole, the mounting hole is worn out to the bottom of first lead screw and is connected with the fixed block, be provided with first ball on the first lead screw, first ball is connected with the butt piece, be provided with on the butt joint piece and be used for driving first lead screw pivoted driving piece, be provided with on the butt joint piece and be used for preventing that the butt piece from following first ball pivoted locating part.

Through adopting above-mentioned technical scheme, at first put into the low groove with the work piece from the space of fixed block and butt piece one side in, then rotate first lead screw, first lead screw drives first ball and rotates, and because first ball is connected with the butt piece, and under the limiting displacement of locating part, make first ball and butt piece produce the removal along the axial of first lead screw, thereby make the butt piece remove and accomplish the combination of upper groove and low groove to the fixed block direction, thereby can firmly fix the work piece, thereby can effectively improve the machining precision of milling machine.

The present invention may be further configured in a preferred embodiment as: the top of butt joint piece and the one end of keeping away from the mounting hole are provided with the connecting hole, the locating part is including setting up the ejector pin in the connecting hole, the connecting hole is worn out to the bottom of ejector pin and is connected with the fixed block.

Through adopting above-mentioned technical scheme, the ejector pin setting can play spacing effect to the butt piece in the connecting hole, avoids the butt piece to follow first ball and rotates for butt piece intelligence reciprocates along vertical direction, thereby can further guarantee the precision of upper groove and low groove combination.

The present invention may be further configured in a preferred embodiment as: be provided with the spread groove on the inner wall of mounting hole, the spread groove is cyclic annular, just first ball sets up in the spread groove.

Through adopting above-mentioned technical scheme, first ball sets up in the spread groove, can further increase the connection stability between first ball and the butt piece.

The present invention may be further configured in a preferred embodiment as: the butt joint piece is provided with the locating piece on being close to the terminal surface of fixed block, be provided with the constant head tank that supplies the locating piece to stretch into on the fixed block.

Through adopting above-mentioned technical scheme, when upper groove and low groove fix the work piece, the locating piece stretches into the constant head tank in, can strengthen the stability of being connected between fixed block and the butt piece.

The present invention may be further configured in a preferred embodiment as: be provided with the mounting groove on the top surface of base, the bottom of fixed block is located the mounting groove, be provided with the mounting that is applied to fixed block on the base.

Through adopting above-mentioned technical scheme, the fixed block can be dismantled with the base and be connected, the installation and the dismantlement of fixed block of can being convenient for, and the fixed block can strengthen the steadiness of fixed block installation in the mounting groove.

The present invention may be further configured in a preferred embodiment as: be provided with the hole of stepping down on the inner wall of mounting groove, the downthehole slide bar that is provided with of stepping down, the one end of slide bar stretches out the hole of stepping down and is the arc setting, be provided with on the fixed block and supply the slide bar to be the butt groove that curved tip stretches into, the downthehole elastic component that is used for applying towards butt groove direction elastic force to the slide bar that is provided with of stepping down.

Through adopting above-mentioned technical scheme, when the installation fixed block, with the fixed block in the mounting groove, and will slide the pole and be curved tip and stretch into the butt joint inslot under the elastic action of elastic component to can firmly fix the fixed block, increase the stability of being connected between fixing base and the base. The double locking through mounting groove and slide rod has further guaranteed the stability of being connected between fixing base and the base.

The present invention may be further configured in a preferred embodiment as: the fixed block is provided with a guide hole communicated with the abutting groove, a pushing connecting rod is arranged in the guide hole, one end of the pushing connecting rod is abutted to the sliding rod, and the other end of the pushing connecting rod extends out of the fixed block and is connected with a button.

Through adopting above-mentioned technical scheme, when needs dismantle the fixed block, press the button on the fixed block, the button promotes the slide bar through promoting the connecting rod and removes, and the slide bar removes to the direction that is close to the hole of stepping down under the effect of thrust to release the butt groove with the slide bar. After the sliding rod is completely separated from the abutting groove, the fixing block is taken out from the mounting groove to be replaced, and the fixing block can be conveniently detached. On the other hand, the setting of promotion connecting rod and button can avoid the fixed block to slide the pole and contact with the butt groove when rebound and cause the damage to sliding pole and butt pole.

The present invention may be further configured in a preferred embodiment as: rubber pads are arranged in the upper groove and the lower groove.

Through adopting above-mentioned technical scheme, the setting of rubber pad can avoid upper groove and low groove to cause the damage to the work piece when centre gripping work piece.

To sum up, the utility model discloses a following at least one useful technological effect:

1. through the arrangement of the fixed block and the abutting block, the fixed block and the abutting block are provided with the workpiece clamping groove together, and the fixed block is provided with the first screw rod for driving the abutting block to move up and down, so that the machining precision of the milling machine can be effectively improved;

2. the positioning block and the positioning groove are arranged, so that the connection stability between the fixing block and the abutting block can be further enhanced;

3. through the setting of installation, slide bar, butt groove, can strengthen the stability of being connected between fixed block and the base.

Drawings

Fig. 1 is a schematic structural diagram of a milling machine shown in an embodiment of the present invention;

fig. 2 is a schematic structural view of a fixing clip shown in the embodiment of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is a schematic structural diagram of another fixing clamp shown in the embodiment of the present invention.

In the figure, 1, a milling machine body; 11. a work table; 12. a base; 14. mounting grooves; 2. a fixed block; 21. a limiting hole; 22. a sliding hole; 23. a slide bar; 24. a first spring; 25. a butt joint groove; 26. a guide hole; 261. abutting against the hole; 262. a fixing hole; 263. extruding the hole; 27. pushing the connecting rod; 271. a butting rod; 272. a drive rod; 273. an extrusion stem; 274. a button; 28. a limiting plate; 3. a butting block; 31. a lower groove; 32. an upper groove; 33. a workpiece clamping groove; 4. positioning a groove; 41. positioning blocks; 42. a gasket; 5. mounting holes; 51. a first lead screw; 52. a first ball bearing; 53. a handle; 54. connecting grooves; 55. connecting holes; 56. and a push rod.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a mounting fixture for milling machine, this milling machine includes milling machine body 1 and sets up workstation 11 on milling machine body 1, is provided with base 12 on workstation 11, and base 12 is connected through fixing bolt with workstation 11.

Referring to fig. 2 and 3, a mounting groove 14 is provided on the top surface of the base 12, and a fixing block 2 is provided in the mounting groove 14. All be provided with the hole of stepping down on mounting groove 14 along 11 length direction's of workstation inner wall, in this embodiment, the hole of stepping down is including the spacing hole 21 and the hole 22 that slides that set gradually, and the diameter in spacing hole 21 is greater than the diameter in hole 22 that slides. Be provided with slide rod 23 in the slide hole 22, and the one end of slide rod 23 stretches into spacing downthehole 21 and is connected with the spacing ring for avoid slide rod 23 to break away from slide hole 22. The other end of the sliding rod 23 extends out of the abdicating hole and is arranged in an arc shape. An elastic piece is arranged in the limiting hole 21, specifically, the elastic piece comprises a first spring 24, one end of the first spring 24 is connected with the bottom wall of the limiting hole 21, and the other end of the first spring 24 is connected with the sliding rod 23.

Referring to fig. 2 and 3, the fixed block 2 is provided with an abutting groove 25 into which the arc-shaped end portion of the slide lever 23 extends. All be provided with guiding hole 26 on two lateral walls along workstation 11 length direction on the fixed block 2, and be provided with in the guiding hole 26 and promote connecting rod 27, in this embodiment, guiding hole 26 is linked together with butt joint groove 25 including butt joint hole 261, fixed orifices 262 and the extrusion hole 263 that sets gradually, and extrusion hole 263, and the diameter of butt joint groove 25 is greater than the diameter of extrusion hole 263. The push link 27 includes an abutting rod 271, a driving rod 272, and a pressing rod 273, which are sequentially disposed, the abutting rod 271 is disposed in the abutting hole 261, the driving rod 272 is disposed in the fixing hole 262, and the pressing rod 273 is disposed in the pressing hole 263. And one end of the abutting rod 271 extends out of the abutting hole 261 to be connected with a button 274, the other end of the abutting rod 271 abuts against the driving rod 272, and the end surfaces of the abutting rod 271, which are in contact with the driving rod 272, are all arranged in an inclined manner. And one end of the driving rod 272, which is far away from the abutting rod 271, abuts against the extrusion rod 273, and the end surfaces of the driving rod 272, which contact with the extrusion rod 273, are both arranged in an inclined manner. The one end that the pushing ram 273 is kept away from the actuating lever 272 is provided with the limiting plate 28, and the limiting plate 28 sets up in the butt groove 25, is provided with a plurality of second springs (not shown in the figure) in the butt groove 25, and a plurality of second springs along the circumference evenly distributed of butt groove 25, and the one end of second spring is connected with the diapire in butt groove 25, and the other end of second spring is connected with limiting plate 28.

Referring to fig. 4, the abutting block 3 is disposed above the fixed block 2, the lower groove 31 is disposed on the top surface of the fixed block 2, the lower groove 31 extends to two end surfaces of the fixed block 2 along the length direction of the workbench 11, the upper groove 32 corresponding to the lower groove 31 is disposed on the bottom surface of the abutting block 3, and the upper groove 32 extends to two end surfaces of the abutting block 3 along the length direction of the workbench 11. The upper groove 32 and the lower groove 31 together form a workpiece clamping groove 33 for clamping a workpiece. In this embodiment, six workpiece clamping grooves 33 are provided, three of the workpiece clamping grooves 33 are arranged in a circular shape, the other three workpiece clamping grooves 33 are arranged in a rectangular shape, and each rectangular workpiece clamping groove 33 is arranged between two adjacent circular workpiece clamping grooves 33, so that the fixture can clamp both circular workpieces and rectangular workpieces.

Referring to fig. 4, be provided with a plurality of constant head tanks 4 on the top surface of fixed block 2, and be provided with the locating piece 41 that stretches into constant head tank 4 on the butt piece 3, can further increase fixed block 2 and butt piece 3's stability of being connected. And the top surface of the fixed block 2 is provided with a sealing gasket 42 for preventing the abutting block 3 and the fixed block 2 from being damaged when the abutting block 3 contacts the fixed block 2. And rubber pads are arranged in the upper groove 32 and the lower groove 31 respectively and used for avoiding damaging the workpiece.

Referring to fig. 4, the top end of the abutting block 3 is provided with a mounting hole 5 in a penetrating manner, a first screw 51 is arranged in the mounting hole 5, the bottom end of the first screw 51 penetrates through the mounting hole 5 to be connected with the fixed block 2, the top end of the first screw 51 penetrates through the mounting hole 5 to be connected with a handle 53, a first ball 52 is sleeved on the first screw 51, a connecting groove 54 is formed in the inner wall of the mounting hole 5, the connecting groove 54 is annular, and the first ball 52 is arranged in the connecting groove 54. The top of butt joint piece 3 just keeps away from the one end of mounting hole 5 and runs through and be provided with connecting hole 55, is provided with the locating part on the butt joint piece 3, and the locating part is including setting up the ejector pin 56 in connecting hole 55, and the bottom of ejector pin 56 spreads connecting hole 55 and is connected with fixed block 2. Rotate first lead screw 51 through handle 53, first lead screw 51 drives first ball 52 and rotates, and because first ball 52 is connected with butt piece 3, and under the limiting displacement of ejector pin 56, make first ball 52 and butt piece 3 produce the removal along first lead screw 51's axial, thereby make butt piece 3 to 2 directions removal of fixed block and accomplish the combination of upper groove 32 and low recess 31, thereby can firmly fix the work piece, thereby can effectively improve the machining precision of milling machine.

The implementation principle of the embodiment is as follows:

when the clamp is used, the base 12 of the clamp is fixed at a corresponding position on the workbench 11 through the fixing bolt 13, then the fixing block 2 is clamped in the mounting groove 14 on the base 12, and at the moment, the sliding rod 23 extends into the abutting groove 25, so that the fixing block 2 is firmly fixed.

Fix the back with fixed block 2, put into the lower groove 31 in the space of fixed block 2 and butt piece 3 one side with the work piece, then rotate first lead screw 51 through handle 53, first lead screw 51 drives first ball 52 and rotates, and because first ball 52 is connected with butt piece 3, and under the limiting displacement of ejector pin 56, make first ball 52 and butt piece 3 produce the removal along the axial of first lead screw 51, thereby make butt piece 3 remove and accomplish the combination of upper groove 32 and lower groove 31 to fixed block 2 direction, thereby can firmly fix the work piece, and locating piece 41 stretches into in the constant head tank 4, thereby can further increase the stability of being connected of butt piece 3 and fixed block 2, thereby can effectively improve the machining precision of milling machine.

When the workpiece needs to be taken out, the first screw rod 51 is rotated in the opposite direction through the handle 53, the first screw rod 51 drives the first ball 52 to rotate, and under the limiting effect of the ejector rod 56, the abutting block 3 moves towards the direction far away from the fixed block 2, so that the workpiece can be taken out.

When the fixed block 2 needs to be detached, the push button 274 presses the abutting rod 271, the driving rod 272 moves downwards under the guiding action of the abutting rod 271 and the inclined surfaces of the driving rod 272, the pressing rod 273 moves towards the direction close to the abutting groove 25 under the guiding action of the inclined surfaces of the driving rod 272 and the pressing rod 273 in the process of moving downwards of the driving rod 272, the limiting plate 28 is driven to move, the sliding rod 23 is pushed out of the abutting groove 25 when the limiting plate 28 moves, and the second spring 29 is driven to elongate. After the sliding rod 23 is completely separated from the abutting groove 25, the fixing block 2 can be taken out from the mounting groove 14. And after the button 274 is released, the stopper plate 28, the pressing lever 273, the driving lever 272, and the abutting lever 271 are restored to the original positions by the elastic force of the second spring 29.

The embodiments of the present invention are the preferred embodiments of the present invention, and the protection scope of the present invention is not limited by this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a mounting fixture for milling machine, this milling machine includes milling machine body (1) and sets up workstation (11) on milling machine body (1), its characterized in that: a base (12) is arranged on the workbench (11), a fixed block (2) is arranged on the base (12), a lower groove (31) is arranged on the top surface of the fixed block (2), a butting block (3) is arranged above the fixed block (2), an upper groove (32) corresponding to the upper groove (32) is arranged on the bottom surface of the butting block (3), and a workpiece clamping groove (33) is formed between the upper groove (32) and the lower groove (31); the top of butt joint piece (3) is run through and is provided with mounting hole (5), be provided with first lead screw (51) in mounting hole (5), mounting hole (5) are worn out to the bottom of first lead screw (51) and are connected with fixed block (2), be provided with first ball (52) on first lead screw (51), first ball (52) are connected with butt joint piece (3), be provided with on butt joint piece (3) and be used for driving first lead screw (51) pivoted driving piece, be provided with on butt joint piece (3) and be used for preventing that butt joint piece (3) from following first ball (52) pivoted locating part.

2. The fixing jig for a milling machine according to claim 1, characterized in that: the top of butt joint piece (3) and the one end of keeping away from mounting hole (5) are provided with connecting hole (55), the locating part is including setting up ejector pin (56) in connecting hole (55), connecting hole (55) are worn out to the bottom of ejector pin (56) and are connected with fixed block (2).

3. The fixing jig for a milling machine according to claim 1, characterized in that: the inner wall of the mounting hole (5) is provided with a connecting groove (54), the connecting groove (54) is annular, and the first ball (52) is arranged in the connecting groove (54).

4. The fixing jig for a milling machine according to claim 1, characterized in that: the butt joint block (3) is provided with locating piece (41) on being close to the terminal surface of fixed block (2), be provided with constant head tank (4) that supply locating piece (41) to stretch into on fixed block (2).

5. The fixing jig for a milling machine according to claim 1, characterized in that: be provided with mounting groove (14) on the top surface of base (12), the bottom of fixed block (2) is located mounting groove (14), be provided with the mounting that is applied to fixed block (2) on base (12).

6. The fixing jig for a milling machine according to claim 5, characterized in that: be provided with the hole of stepping down on the inner wall of mounting groove (14), it is provided with slide bar (23) in the hole to step down, the one end of slide bar (23) is stretched out the hole of stepping down and is the arc setting, be provided with on fixed block (2) and supply slide bar (23) to be butt joint groove (25) that curved tip stretches into, it is provided with the elastic component that is used for applying orientation butt joint groove (25) direction elastic force to slide bar (23) to step down the downthehole.

7. The fixing jig for a milling machine according to claim 6, characterized in that: the fixed block (2) is provided with a guide hole (26) communicated with the abutting groove (25), a pushing connecting rod (27) is arranged in the guide hole (26), one end of the pushing connecting rod (27) abuts against the sliding rod (23), and the other end of the pushing connecting rod (27) extends out of the fixed block (2) and is connected with a button (274).

8. The fixing jig for a milling machine according to claim 1, characterized in that: rubber pads are arranged in the upper groove (32) and the lower groove (31).