CN214445560U

CN214445560U - Positioning device for die casting machining

Info

Publication number: CN214445560U
Application number: CN202023337062.1U
Authority: CN
Inventors: 顾鹏飞; 董方斌; 石红波
Original assignee: Zhejiang Haolong Electrical Co ltd
Current assignee: Zhejiang Haolong Electrical Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-10-22
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a positioning device for die casting processing, which comprises a workbench, a fixed frame arranged on the workbench, a lifting plate capable of sliding relative to the fixed frame, a first driving piece for driving the lifting plate to slide, a positioning block arranged on the lifting plate, an interval adjusting mechanism and a positioning mechanism; the positioning mechanism comprises a first positioning cylinder, a pressing plate arranged on the first positioning cylinder, a pressing plate adjusting assembly, a second positioning cylinder arranged on the first positioning cylinder, a cleaning assembly and a guide assembly; the cleaning assembly comprises a plurality of first arc-shaped plates arranged on the second positioning cylinder, a plurality of second arc-shaped plates arranged on the second positioning cylinder, a plurality of brush hairs arranged on the first arc-shaped plates and the second arc-shaped plates, a rotating shaft arranged on the first positioning cylinder, a second driving piece used for driving the rotating shaft to rotate, an installation part and a connecting part.

Description

Positioning device for die casting machining

Technical Field

The utility model belongs to the technical field of positioner, especially, relate to a positioner of die casting processing usefulness.

Background

With continuous optimization and improvement of modern processing methods, various parts are gradually complicated and integrally developed, the processing period is gradually shortened, and the requirements on the processing quality are gradually improved. In order to improve the processing efficiency of parts, at present, most of aluminum alloy parts are processed by adopting a processing center, the traditional processing technology is to position and process by using an original positioning surface and a positioning pin hole on a product, the limitation is that if the positioning surface and the positioning hole are defined to be processed, the processing procedure needs to be added, and after the splitting procedure, the product is scrapped because the dimension is unstable or out of tolerance due to the processing of the sub-procedures; and burrs are easily left on the inner side wall of the positioning pin hole, so that subsequent positioning of parts is influenced, and further the machining precision is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome prior art not enough, provide a positioner of die casting processing usefulness of locating pin hole burr can get rid of.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a positioning device for die casting machining comprises a workbench, a fixed frame arranged on the workbench, a lifting plate capable of sliding relative to the fixed frame, a first driving piece used for driving the lifting plate to slide, a positioning block arranged on the lifting plate, an interval adjusting mechanism and a positioning mechanism; the positioning mechanism comprises a first positioning cylinder, a pressing plate arranged on the first positioning cylinder, a pressing plate adjusting assembly, a second positioning cylinder arranged on the first positioning cylinder, a cleaning assembly and a guide assembly; the cleaning assembly comprises a plurality of first arc-shaped plates arranged on the second positioning cylinder, a plurality of second arc-shaped plates arranged on the second positioning cylinder, a plurality of bristles arranged on the first arc-shaped plates and the second arc-shaped plates, a rotating shaft arranged on the first positioning cylinder, a second driving piece used for driving the rotating shaft to rotate, an installation part and a connecting part; set up the clearance subassembly, first driving piece starts, it is down to drive the lifter plate, first location section of thick bamboo drives second location section of thick bamboo down, the second driving piece starts, the second location section of thick bamboo is rotatory and when passing down the location pinhole on the boss on the die casting, burr on a plurality of brush hairs can be got rid of to the inside wall of location pinhole, it is more smooth and easy that the second location section of thick bamboo of being convenient for gets into the location pinhole on the boss on the die casting, and avoid burr on the inside wall of location pinhole to influence the location of die casting.

Preferably, the mounting component comprises a sliding groove formed in the second positioning cylinder, a first limiting groove formed in the sliding groove, a positioning piece capable of sliding relative to the first limiting groove, and a first elastic piece arranged on the positioning piece; an opening is formed in the lower portion of the sliding groove; a lug is arranged on the first arc-shaped plate or the second arc-shaped plate; the first arc-shaped plate or the second arc-shaped plate is pulled downwards by force, so that the positioning piece slides towards the first limiting groove, and the first arc-shaped plate or the second arc-shaped plate can be taken down from the second positioning cylinder after sliding to the lowest position from the sliding groove, and the replacement is convenient; when the first arc-shaped plate or the second arc-shaped plate is installed, the lug on the first arc-shaped plate or the second arc-shaped plate is pushed into the opening below the sliding groove and pulled upwards, the positioning piece is pushed back into the first limiting groove, the lug on the first arc-shaped plate or the second arc-shaped plate reaches the upper part of the sliding groove, the positioning piece is pushed and reset by the acting force of the first elastic piece, and the first arc-shaped plate or the second arc-shaped plate is clamped and fixed.

Preferably, the connecting component comprises a first fixing plate arranged on the first arc-shaped plate, a first fixing shaft arranged on the first fixing plate, a first clamping piece arranged on the first fixing shaft, a first torsion piece arranged on the first fixing shaft, a second fixing plate arranged on the second arc-shaped plate, a second fixing shaft arranged on the second fixing plate, a second clamping piece arranged on the second fixing shaft, and a second torsion piece arranged on the second fixing shaft; after the first arc-shaped plate and the second arc-shaped plate are arranged on the second positioning cylinder, the first clamping piece receives the acting force of the first torsion piece, the second clamping piece receives the acting force of the second torsion piece, and the first clamping piece clamps the second clamping piece, so that the first arc-shaped plate and the second arc-shaped plate are connected more stably and firmly.

Preferably, the pressure plate adjusting assembly comprises a straight groove arranged on the first positioning cylinder, a plurality of arc-shaped grooves arranged on the first positioning cylinder, a second limiting groove arranged on the arc-shaped grooves, a locking piece capable of sliding relative to the second limiting groove, and a second elastic piece arranged on the locking piece; two lugs are arranged on the pressing plate; the pressing plate is rotated, and the locking piece can be pushed to retract into the second limiting groove; after the pressing plate rotates by 90 degrees, the lug on the pressing plate reaches the position of the straight groove, the pressing plate can slide up and down, the height position of the pressing plate is adjusted, and the die casting positioning device can be suitable for positioning die castings with different thicknesses; after the pressure plate slides to a certain height, the corresponding arc-shaped groove position is selected to rotate the pressure plate reversely by 90 degrees, and the locking piece is pushed by the elasticity of the second elastic piece to fix the lug on the pressure plate.

Preferably, the guide assembly comprises a notch arranged on the second positioning cylinder, a conical piece capable of sliding relative to the notch and a third elastic piece arranged on the conical piece; when the second positioning cylinder moves downwards, the conical piece firstly passes through the positioning pin hole, the second positioning cylinder continues to move downwards, when the conical piece contacts the workbench surface, the third elastic piece is compressed, and the conical piece retracts into the notch in the second positioning cylinder, so that the end surface of the second positioning cylinder is in contact with the workbench, the tip of the conical piece is prevented from being in contact with the workbench to slip, and the positioning is more accurate.

Preferably, the distance adjusting mechanism comprises a supporting block arranged on the lifting plate, a screw rod arranged on the supporting block and a handle arranged on the screw rod; the handle is rotated, so that the screw rod can rotate, the position of one of the positioning blocks on the screw rod can be adjusted, and corresponding adjustment can be performed according to the positions of the positioning pin holes of the bosses on different die castings.

To sum up, set up the clearance subassembly, first driving piece starts, and it is down to drive the lifter plate, and first a location section of thick bamboo drives second a location section of thick bamboo down, and the second driving piece starts, and when second a location section of thick bamboo rotatory and down passed the location pinhole on the boss on the die casting, burr on a plurality of brush hairs can be got rid of to the inside wall of location pinhole, and it is more smooth and easy that the second a location section of thick bamboo of being convenient for gets into the location pinhole on the boss on the die casting, and avoids burr on the inside wall of location pinhole to influence the location of die casting.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the positioning mechanism of the present invention.

FIG. 3 is an enlarged view of FIG. 2 at C

Fig. 4 is a front view of fig. 2.

Fig. 5 is a cross-sectional view taken along a-a of fig. 4.

FIG. 6 is an enlarged view of the portion B in FIG. 5

Fig. 7 is a right side view of fig. 2.

Fig. 8 is a cross-sectional view taken along line D-D of fig. 7.

Fig. 9 is an enlarged view at E in fig. 8.

Fig. 10 is a cross-sectional view taken along F-F of fig. 7.

Fig. 11 is an enlarged view at G in fig. 10.

Fig. 12 is a schematic view of the die cast part.

Detailed Description

As shown in fig. 1 to 12, a positioning device for die casting processing comprises a worktable 11, a fixed frame 12, a lifting plate 13, a first driving piece 14, a positioning block 15, a spacing adjusting mechanism and a positioning mechanism; the fixed frame 12 is fixed on the workbench 11; the lifting plate 13 can slide relative to the fixed frame 12; the first driving part 14 is an existing electric push rod, one end of the first driving part is fixedly arranged on the fixed frame 12, and the other end of the first driving part is fixed on the lifting plate 13; 4 positioning blocks 15 are arranged, wherein 2 positioning blocks are symmetrically fixed on the fixing frame 12, and the other 2 positioning blocks can slide relative to the fixing frame 12; the fixed frame 12 is provided with a slide rail.

Further, the spacing adjusting mechanism comprises a supporting block 21, a screw 22 and a handle 23; the supporting block 21 is fixed on the lifting plate 13; the screw 22 is rotatably arranged on the supporting block 21 in a penetrating way; the handle 23 is fixed to one end of the screw 22.

Further, the positioning mechanism comprises a first positioning cylinder 31, a pressure plate 32, a pressure plate adjusting assembly, a second positioning cylinder 33, a cleaning assembly and a guiding assembly; the first positioning cylinder 31 can rotate relative to the positioning block 15; the pressing plate 32 is rotatably sleeved on the first positioning cylinder 1; one end of the second positioning cylinder 33 is screwed on the end of the first positioning cylinder 31.

Further, the cleaning assembly comprises a first arc-shaped plate 41, a second arc-shaped plate 42, bristles 43, a rotating shaft 44, a second driving part 45, a mounting part and a connecting part; the first arc-shaped plate 41 is detachably connected to the second positioning cylinder 33; the second arc-shaped plate 42 is detachably connected to the second positioning cylinder 33; the brush bristles 43 are fixed on the first arc-shaped plate 41 and the second arc-shaped plate 42; the rotating shaft 44 is fixedly arranged on the first positioning cylinder 31 in a penetrating way; the second driving member 45 is an existing motor and is fixedly mounted on the positioning block 15.

Further, the guide assembly includes a notch 51, a taper 52 and a third elastic member 53; the notch 51 is arranged on the second positioning cylinder 33; the conical piece 52 can slide relative to the notch 51; the third elastic member 53 is a conventional spring, and has one end fixed to the inner wall of the notch 51 and the other end fixed to the tapered member 52.

Further, the pressure plate adjusting assembly comprises a straight groove 61, an arc-shaped groove 62, a second limiting groove 63, a locking piece 64 and a second elastic piece 65; the straight groove 61 is formed in the first positioning cylinder 31; the arc-shaped groove 62 can be arranged on the first positioning cylinder 31; the second limiting groove 63 is formed in the first positioning cylinder 31; the locking piece 64 can slide relative to the second limiting groove 63; the second elastic member 65 is an existing spring, one end of which is fixed to the locking member 64, and the other end of which is fixed to the inner wall of the second limiting groove 63.

Further, the mounting component includes a sliding slot 71, a first limiting slot 72, a positioning member 73 and a first elastic member 74; an opening is formed in the lower portion of the sliding groove 71; a bump is arranged on the first arc-shaped plate 41 or the second arc-shaped plate 42; the sliding groove 71 is formed in the second positioning cylinder 33; the first limiting groove 72 is formed in the sliding groove 71; the positioning member 73 can slide relative to the first limiting groove 72; the first elastic element 74 is a conventional spring, and has one end fixed to the inner wall of the first limiting groove 72 and the other end fixed to the positioning element 73.

Further, the connecting member includes a first fixing plate 81, a first fixing shaft 82, a first latch 83, a first torsion member 84, a second fixing plate 85, a second fixing shaft 86, a second latch 87, and a second torsion member 88; the first fixing plate 81 is fixed on the first arc-shaped plate 41; the first fixing shaft 82 is fixedly arranged on the first fixing plate 81 in a penetrating manner; the first clamping piece 83 is rotatably sleeved on the first fixed shaft 82; the first torsion member 84 is an existing torsion spring, one end of the torsion member is fixed on the first clamping piece 83, and the other end of the torsion member is fixed on the first fixing shaft 82; the second fixing plate 85 is fixed on the second arc-shaped plate 42; the second fixing shaft 86 is fixedly arranged on the second fixing plate 85 in a penetrating manner; the second clamping piece 87 is rotatably sleeved on the second fixed shaft 86; the second torsion member 88 is an existing torsion spring, one end of the torsion arm is fixed on the second fastener 87, and the other end of the torsion arm is fixed on the second fixing shaft 86.

The process boss 91 is additionally arranged on the die casting to position and compress the die casting, most of aluminum alloy parts similar to automobile parts are finished by performing finish machining after die casting forming, so that the process boss 91 is used as a part of a product to be formed by die casting before the auxiliary process boss 91 is manufactured by a die, and the integrity of the process boss 91 and the firmness of the process boss 91 are ensured; the plane of the process boss 91 and the positioning pin hole 92 are machined, so that the positioning accuracy is guaranteed, the one-time machining and forming are facilitated, the process boss 91 is removed, a process is not added independently for machining removal, the one-time machining removal is adopted (the removal method adopts a residual wall thickness of 0.5mm after machining, and after a product is taken down, the product is manually pulled off), the process and the machining time are saved, the one-time clamping of the product can be guaranteed to finish all machining characteristics, the dimensional stability and the reliability among all machining characteristics can be guaranteed, the machining qualification rate is improved, and the machining leakage caused by the process division can be avoided.

The working principle is as follows: first driving piece 14 starts, it is down to drive lifter plate 13, first location section of thick bamboo 31 drives second location section of thick bamboo 33 down, second driving piece 45 starts, second location section of thick bamboo 33 is rotatory and when passing down the location pinhole 92 on the boss on the die casting, a plurality of brush hairs 43 synchronous revolution, can get rid of the burr on the inside wall of location pinhole 92, it is more smooth that second location section of thick bamboo 33 gets into the location pinhole 92 on the boss on the die casting of being convenient for, and avoid burr on the inside wall of location pinhole 92 to influence the location of die casting. When the second positioning cylinder 33 moves downwards, the conical piece 52 firstly passes through the positioning pin hole 92, the second positioning cylinder 33 continues to move downwards, when the conical piece 52 contacts the table surface of the workbench 11, the third elastic piece 53 is compressed, and the conical piece 52 retracts into the notch 51 on the second positioning cylinder 33, so that the end surface of the second positioning cylinder 33 contacts the workbench 11, the tip of the conical piece 52 is prevented from contacting and slipping with the workbench 11, and the positioning is more accurate. When the end of the second positioning cylinder 33 abuts against the working table 11, the pressing plate 32 reaches the plane on the process boss 91 and presses the same, so that the die casting is positioned and fixed.

Claims

1. A positioning device for die casting machining comprises a workbench (11), a fixed frame (12) arranged on the workbench (11), a lifting plate (13) capable of sliding relative to the fixed frame (12), a first driving piece (14) used for driving the lifting plate (13) to slide, a positioning block (15) arranged on the lifting plate (13), an interval adjusting mechanism and a positioning mechanism; the positioning mechanism comprises a first positioning cylinder (31), a pressing plate (32) arranged on the first positioning cylinder (31), a pressing plate adjusting assembly, a second positioning cylinder (33) arranged on the first positioning cylinder (31), a cleaning assembly and a guiding assembly; the method is characterized in that: the cleaning assembly comprises a plurality of first arc-shaped plates (41) arranged on the second positioning cylinder (33), a plurality of second arc-shaped plates (42) arranged on the second positioning cylinder (33), a plurality of bristles (43) arranged on the first arc-shaped plates (41) and the second arc-shaped plates (42), a rotating shaft (44) arranged on the first positioning cylinder (31), a second driving part (45) used for driving the rotating shaft (44) to rotate, an installation part and a connecting part.

2. The positioning device for die casting processing according to claim 1, wherein: the mounting component comprises a sliding groove (71) arranged on the second positioning cylinder (33), a first limiting groove (72) arranged on the sliding groove (71), a positioning part (73) capable of sliding relative to the first limiting groove (72) and a first elastic part (74) arranged on the positioning part (73).

3. The positioning device for die casting processing according to claim 1, wherein: the connecting component comprises a first fixing plate (81) arranged on the first arc-shaped plate (41), a first fixing shaft (82) arranged on the first fixing plate (81), a first clamping piece (83) arranged on the first fixing shaft (82), a first torsion piece (84) arranged on the first fixing shaft (82), a second fixing plate (85) arranged on the second arc-shaped plate (42), a second fixing shaft (86) arranged on the second fixing plate (85), a second clamping piece (87) arranged on the second fixing shaft (86) and a second torsion piece (88) arranged on the second fixing shaft (86).

4. The positioning device for die casting processing according to claim 1, wherein: the pressure plate adjusting assembly comprises a straight groove (61) arranged on the first positioning cylinder (31), a plurality of arc-shaped grooves (62) arranged on the first positioning cylinder (31), a second limiting groove (63) arranged on the arc-shaped grooves (62), a locking piece (64) capable of sliding relative to the second limiting groove (63) and a second elastic piece (65) arranged on the locking piece (64).

5. The positioning device for die casting processing according to claim 1, wherein: the guide assembly comprises a notch (51) arranged on the second positioning cylinder (33), a conical piece (52) capable of sliding relative to the notch (51), and a third elastic piece (53) arranged on the conical piece (52).

6. The positioning device for die casting processing according to claim 1, wherein: the distance adjusting mechanism comprises a supporting block (21) arranged on the lifting plate (13), a screw rod (22) arranged on the supporting block (21) and a handle (23) arranged on the screw rod (22).