CN211330898U

CN211330898U - Deep drawing machine

Info

Publication number: CN211330898U
Application number: CN201922245104.XU
Authority: CN
Inventors: 田加杰; 袁安利; 王星光
Original assignee: Shaanxi Hongxiang Special Automobile Co ltd
Current assignee: Shaanxi Hongxiang Special Automobile Co ltd
Priority date: 2019-12-14
Filing date: 2019-12-14
Publication date: 2020-08-25
Anticipated expiration: 2029-12-14

Abstract

The utility model discloses a deep-drawing machine relates to part manufacture equipment technical field. The die comprises a lower die holder, a female die, a male die, a hydraulic cylinder and a guide rod, wherein a plurality of uniformly distributed positioning blocks are annularly arranged on the top surface of the lower die holder around the axis of the female die, a positioning plate horizontally arranged is connected in the positioning blocks in a sliding manner, the sliding direction of the positioning plate is the linear direction passing through the circle center of the female die, scale marks are arranged on the positioning plate, and a positioning assembly used for fixing the positioning plate is arranged on the positioning block. The utility model has the advantages of can pinpoint discoid work piece, make its deep-drawing position the skew can not appear.

Description

Deep drawing machine

Technical Field

The utility model belongs to the technical field of the part manufacturing equipment technique and specifically relates to a deep-drawing machine is related to.

Background

Drawing, also called drawing, stretching, calendering and the like, refers to a mechanical processing technology for punching a flat blank with a certain shape obtained after blanking into various open hollow workpieces or reducing the diameter of the open hollow blank to increase the height by utilizing a die. The product can be made into cylindrical, stepped, conical, spherical, box-shaped and other irregular thin-wall workpieces by drawing process. The method can be matched with other stamping forming processes such as flanging, bulging, flaring and necking, and can also be used for manufacturing workpieces with extremely complex shapes. Therefore, the drawing process plays a very important role in the production process of industrial departments such as automobiles, airplanes, tractors, electric appliances, instruments, electronics and the like.

Referring to fig. 4, for a deep drawing machine for deep drawing a disc-shaped workpiece into a cylinder disclosed in the prior art, the deep drawing machine comprises a lower die holder 1 connected with a support frame and horizontally arranged, a circular female die 2 is arranged on the lower die holder 1, a male die 3 moving along the vertical direction is arranged right above the female die 2, the top end of the male die 3 is connected with a hydraulic cylinder 4 driving the male die to move, the cylinder body of the hydraulic cylinder 4 is fixedly connected with the top end of the support frame, and the top end of the male die 3 is further connected with a guide rod 5 penetrating through the top end. When drawing a disc-shaped workpiece, the workpiece needs to be manually placed on a female die on a lower die holder and the position of the workpiece is adjusted, and then a hydraulic cylinder drives the male die to descend so as to draw the disc-shaped workpiece.

The prior art solutions in the above patents have the following drawbacks: the disc-shaped workpiece placed on the female die manually has the advantages that the center of a circle of the disc-shaped workpiece is often deviated from the center of a circle of the female die to different degrees, so that the disc-shaped workpiece with the same specification can deviate from a drawing position when being drawn, and the drawing workpiece can be used as an accessory and cannot meet the standard.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a deep-drawing machine, it has can pinpoint discoid work piece, makes the advantage that the skew can not appear in its deep-drawing position.

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

the utility model provides a deep-drawing machine, includes die holder, die, terrace die, pneumatic cylinder and guide bar, the top surface of die holder encircles around the axis of die and is equipped with a plurality of evenly distributed's locating piece, sliding connection has the locating plate that the level set up in the locating piece, the direction of sliding of locating plate is the straight line direction through the die centre of a circle, be equipped with the scale mark on the locating plate, be provided with the locating component who is used for fixed positioning board on the locating piece.

By adopting the technical scheme, before drawing the disc-shaped workpiece, the disc-shaped workpiece is accurately positioned on the lower die holder. During positioning, the disc-shaped workpiece is firstly placed among all the positioning blocks, then the positioning plates are slid, one end of each positioning plate is in contact with and tightly abutted against the circumferential side face of the disc-shaped workpiece, then the position of the disc-shaped workpiece is continuously adjusted, and the scale marks are observed, so that the extension lengths of the positioning plates in all the positioning blocks are consistent. Because the distance from each positioning block to the axis of the female die is equal, at the moment, the circle center of the disc-shaped workpiece can be ensured to be just positioned on the axis of the female die through the three positioning blocks which are uniformly distributed, so that the aim of accurately positioning the disc-shaped workpiece is fulfilled, the drawing position of the disc-shaped workpiece is ensured not to deviate, and the drawing part is not in line with the standard.

The present invention may be further configured in a preferred embodiment as: the positioning assembly comprises a tight screw rod which is vertically arranged and is in threaded connection with the positioning block, and a hand wheel which is connected to the top end of the tight screw rod, and the bottom end of the tight screw rod is abutted against the top surface of the positioning plate.

Through adopting above-mentioned technical scheme, rotate the hand wheel and can realize the locating plate in the locating piece slide and fasten, this project organization is simple, fixed effectual to the locating plate, very big make things convenient for staff's operation, make this locating component have fine room nature.

The present invention may be further configured in a preferred embodiment as: the bottom surface of the positioning plate is provided with a plurality of limiting bulges along the direction perpendicular to the sliding direction of the positioning plate, and one surface of the positioning plate, which is close to the bottom surface of the positioning plate, is provided with a plurality of limiting grooves matched with the limiting bulges for use.

Through adopting above-mentioned technical scheme, when spacing arch was located spacing recess, supported the surface of tight locating plate through supporting tight screw rod this moment, can restrict the removal of locating plate completely, this design very big promotion the fixed effect of fixed plate, when having avoided carrying out position control to discoid work piece, because the fixed of locating plate is firm inadequately, make its orientation keep away from the direction of die axis and slide, cause the unsafe problem in location.

The present invention may be further configured in a preferred embodiment as: one end surface of the positioning plate, which is close to the axis of the female die, is an arc surface which is matched with the circumference of the disc-shaped workpiece.

Through adopting above-mentioned technical scheme, the arcwall face makes the locating plate have great area of contact with the terminal surface of die, and the effectual locating plate that has improved supports tight effect to discoid work piece, when making discoid work piece carry out position control, the skew can not appear in the one end of having fixed a position.

The present invention may be further configured in a preferred embodiment as: the die comprises a die and is characterized in that a plurality of T-shaped sliding grooves which correspond to positioning blocks one to one are annularly arranged on the top surface of the die base around the axis of the die, the positioning blocks are connected with the T-shaped sliding grooves in a sliding mode, the sliding direction of the positioning blocks is consistent with that of the positioning plates, a plurality of circular calibration lines which take the center of the top surface of the die as the circle center and have different diameters are arranged on the top surface of the die base, and fixing assemblies for limiting the movement of the positioning blocks are arranged around the.

By adopting the technical scheme, the disc-shaped workpieces with different sizes can be positioned by moving the positioning blocks, the distance from different positioning blocks to the axis of the female die can be ensured to be consistent according to the positions of the calibration lines, the positioning accuracy and the positioning quality can not be influenced, and the design effectively improves the applicability of the drawing machine.

The present invention may be further configured in a preferred embodiment as: the fixing assembly comprises waist-shaped holes which are formed in the top surface of the lower die base and are respectively positioned on two sides of the opening end of the T-shaped sliding groove, and abutting bolts which are vertically inserted into the waist-shaped holes and are in threaded connection with the positioning blocks, and the length direction of each waist-shaped hole is consistent with the sliding direction of each positioning block.

By adopting the technical scheme, when the positioning block is fixed, the abutting bolt is inserted into the waist-shaped hole and screwed into the positioning block, and after the abutting bolt is screwed down, the top surface of the positioning block is close to the top surface of the T-shaped sliding groove, so that the movement of the sliding block is limited, and the positioning block is effectively fixed. When the positioning block is moved, the abutting bolt is screwed out of a part of the positioning block, and the movement of the positioning block can be conveniently realized. Therefore, the design is simple and efficient, stepless adjustment can be realized, all positioning blocks can be located on the same calibration line when sliding, and the positioning effect in the disc-shaped working price cannot be influenced.

The present invention may be further configured in a preferred embodiment as: the clamping screw is sleeved with a clamping plate which is horizontally arranged and slides in the vertical direction along the clamping screw, clamping nuts in threaded connection with the clamping screw are respectively arranged on two sides of the clamping plate in the vertical direction, and the rotating radius of the clamping plate is larger than the sum of the lengths of the positioning block and the positioning plate in the sliding direction.

By adopting the technical scheme, after the disc-shaped workpiece is positioned and is abutted tightly by the positioning plate, the height of the clamping plate can be adjusted as required, the edge of the disc-shaped workpiece is clamped in the vertical direction, and the situation that the drawing position of the disc-shaped workpiece deviates and the quality of the drawing workpiece is influenced due to the fact that the edge of the disc-shaped workpiece is tilted in the drawing process is prevented. The turning radius of the clamping plate is larger than the sum of the lengths of the positioning block and the positioning plate in the sliding direction, so that the positioning plate can contact the top surface of the disc-shaped workpiece when being stretched out too long, and the clamping effect is achieved.

The present invention may be further configured in a preferred embodiment as: the bottom surface of the clamping plate, which is far away from one end of the abutting screw rod, is connected with a plurality of vertically arranged springs, and the bottom ends of the springs are connected with horizontally arranged abutting plates.

By adopting the technical scheme, under the action of the spring, when the edge of the disc-shaped workpiece becomes thin due to the drawing effect, the abutting plate can still abut against the edge of the disc-shaped workpiece, and the problem that the drawing position of the disc-shaped workpiece deviates is further avoided.

To sum up, the utility model discloses a beneficial technological effect does:

1. the positioning block, the positioning plate and the scale marks are arranged to ensure that the circle center of the disc-shaped workpiece is just positioned on the axis of the female die when the disc-shaped workpiece is positioned, so that the aim of accurately positioning the disc-shaped workpiece is fulfilled, and the problem that the drawing position of the disc-shaped workpiece is not deviated and the drawing part is not in accordance with the standard is solved;

2. the fixing effect on the disc-shaped workpiece is effectively improved by arranging the limiting protrusion and the limiting groove and arranging one end face of the positioning plate close to the axis of the female die into an arc-shaped face matched with the circumference of the disc-shaped workpiece;

3. the clamping plate, the spring and the abutting plate are arranged to ensure that the edge of the disc-shaped workpiece cannot be tilted when the disc-shaped workpiece is stretched, so that the drawing position of the disc-shaped workpiece can deviate to influence the quality of the drawn workpiece.

Drawings

Fig. 1 is a schematic structural view of a drawing machine disclosed in the present embodiment;

FIG. 2 is an enlarged partial schematic view of portion A of FIG. 1;

FIG. 3 is a partial perspective cross-sectional view taken along the plane B-B in FIG. 2;

fig. 4 is a schematic view of a drawing machine disclosed in the prior art.

Reference numerals: 1. a lower die holder; 2. a female die; 3. a male die; 4. a hydraulic cylinder; 5. a guide bar; 6. positioning blocks; 7. positioning a plate; 8. scale lines; 9. a positioning assembly; 91. tightly abutting against the screw rod; 92. a hand wheel; 10. a limiting bulge; 11. a limiting groove; 12. a T-shaped chute; 13. calibrating the line; 14. a fixing assembly; 141. a waist-shaped hole; 142. tightly abutting against the bolt; 15. a clamping plate; 16. clamping the nut; 17. a spring; 18. and tightly abutting against the plate.

Detailed Description

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

Referring to fig. 1 and 2, for the utility model discloses a deep drawing machine, including die holder 1, die 2, terrace die 3, pneumatic cylinder 4 and guide bar 5, die holder 1's top surface encircles around the axis of die 2 and is equipped with four evenly distributed's locating piece 6, positioning plate 7 that sliding connection has the level to set up in locating piece 6, the glide direction of locating plate 7 is the linear direction through the 2 centre of a circle of die, be equipped with scale mark 8 on locating plate 7, and its an terminal surface that is close to the 2 axes of die is preferred the arcwall face that suits with the circumference of discoid work piece. Be provided with the locating component 9 that is used for fixed location board 7 on the locating piece 6, locating component 9 includes vertical setting and with locating piece 6 threaded connection support tight screw 91 and connect in the discoid hand wheel 92 who supports tight screw 91 top, support the bottom of tight screw 91 and the top surface butt of locating plate 7. Before drawing the disc-shaped workpiece, the disc-shaped workpiece is accurately positioned on the lower die holder 1. During positioning, the disc-shaped workpiece is placed among all the positioning blocks 6, then the positioning plates 7 are slid, one end of each positioning plate is in contact with and tightly abutted against the circumferential side face of the disc-shaped workpiece, then the position of the disc-shaped workpiece is continuously adjusted, and the scale marks 8 are observed, so that the extension lengths of the positioning plates 7 in each positioning block 6 are consistent. Under the action of the positioning block 6, the drawing position of the disc-shaped workpiece is ensured not to deviate, so that the drawing part is not in accordance with the standard.

Referring to fig. 3, in order to further promote the fixed effect of fixed plate, when avoiding carrying out position adjustment to discoid work piece, because the fixed of locating plate 7 is firm inadequately, make its orientation keep away from the direction of 2 axes of die and slide, cause the unsafe problem of location, seted up a plurality of spacing archs 10 along its direction of sliding of perpendicular to in the bottom surface of locating plate 7, a plurality of spacing recesses 11 of using with spacing archs 10 cooperation have been seted up to the one side that is close to the locating plate 7 bottom surface in locating piece 6.

Referring to fig. 1 and 2, in order to improve the applicability of the drawing machine and enable the drawing machine to accurately position disc-shaped workpieces of different specifications, four T-shaped sliding grooves 12 corresponding to the positioning blocks 6 one by one are annularly arranged on the top surface of the lower die holder 1 around the axis of the female die 2, the positioning blocks 6 are connected with the T-shaped sliding grooves 12 in a sliding manner, and the sliding direction of the positioning blocks 6 is consistent with that of the positioning plates 7. The fixing component 14 for limiting the movement of the positioning block 6 is arranged around the T-shaped sliding groove 12, the fixing component 14 comprises a waist-shaped hole 141 which is formed in the top surface of the lower die holder 1 and is respectively positioned at two sides of the opening end of the T-shaped sliding groove 12, and a tightening bolt 142 which is vertically inserted into the waist-shaped hole 141 and is in threaded connection with the positioning block 6, and the length direction of the waist-shaped hole 141 is consistent with the sliding direction of the positioning block 6. In the process that the positioning block 6 slides, large deviation may occur between the distances from different positioning blocks 6 to the axis of the die 2, so that the positioning block 6 inaccurately positions the disc-shaped workpiece, and therefore five circular calibration lines 13 with the center of the top surface of the die 2 as the center of a circle and different diameters are engraved on the top surface of the lower die holder 1.

Referring to fig. 1 and 2, when a disc-shaped workpiece is drawn, the edge position of the workpiece may tilt to cause the drawing position to deviate, which affects the quality of the drawn workpiece, therefore, a clamping plate 15 which is horizontally arranged and slides in the vertical direction along the tightening screw 91 is sleeved on the tightening screw 91, and clamping nuts 16 which are in threaded connection with the tightening screw 91 are respectively arranged on two sides of the clamping plate 15 in the vertical direction. In order to ensure that the clamping plate 15 can still contact the top surface of the disc-shaped workpiece to play a clamping role when the positioning plate 7 extends out too long, the rotation radius of the clamping plate 15 needs to be ensured to be larger than the sum of the lengths of the positioning block 6 and the positioning plate 7 in the sliding direction. Preferably, a plurality of vertically arranged springs 17 are welded on the bottom surface of one end, far away from the abutting screw 91, of the clamping plate 15, and a horizontally arranged abutting plate 18 is welded at the bottom end of each spring 17.

The implementation principle of the embodiment is as follows: before drawing the disc-shaped workpiece, firstly, adjusting the positioning blocks 6 according to the specification of the disc-shaped workpiece, and ensuring that the positioning blocks 6 are all positioned on the same circular calibration line 13 during adjustment. During positioning, the disc-shaped workpiece is placed among the four positioning blocks 6, then the positioning plate 7 is slid, one end of the positioning plate 7 is in contact with and tightly abutted against the circumferential side face of the disc-shaped workpiece, then the position of the disc-shaped workpiece is continuously adjusted, the scale marks 8 are observed, the extension length of the positioning plate 7 in each positioning block 6 is consistent, and finally the positioning plate 7 is fixed by the abutting screw 91. After the positioning plate 7 is fixed, the edge of the disc-shaped workpiece can be fixed, and when the positioning plate is fixed, the clamping nut 16 is adjusted to enable the clamping plate 15 to move downwards, and then the positioning plate is fixed by the clamping nut 16.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, 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 deep-drawing machine, includes die holder (1), die (2), terrace die (3), pneumatic cylinder (4) and guide bar (5), its characterized in that, the top surface of die holder (1) encircles around the axis of die (2) and is equipped with locating piece (6) of a plurality of evenly distributed, sliding connection has locating plate (7) that the level set up in locating piece (6), the direction of sliding of locating plate (7) is the straight line direction through the die (2) centre of a circle, be equipped with scale mark (8) on locating plate (7), be provided with locating component (9) that are used for fixed positioning board (7) on locating piece (6).

2. The deep-drawing machine according to claim 1, characterized in that the positioning assembly (9) comprises a tightening screw (91) which is vertically arranged and is in threaded connection with the positioning block (6) and a hand wheel (92) which is connected to the top end of the tightening screw (91), and the bottom end of the tightening screw (91) is abutted to the top surface of the positioning block (7).

3. The deep-drawing machine of claim 2, characterized in that, the bottom surface of the locating plate (7) is provided with a plurality of limiting protrusions (10) along the direction perpendicular to the sliding direction, and one surface of the locating block (6) close to the bottom surface of the locating plate (7) is provided with a plurality of limiting grooves (11) matched with the limiting protrusions (10).

4. A deep-drawing machine according to claim 3, characterized in that the end of the positioning plate (7) close to the axis of the die (2) is in the form of an arc adapted to the circumference of the disc-shaped workpiece.

5. The deep drawing machine according to claim 4, characterized in that a plurality of T-shaped sliding chutes (12) corresponding to the positioning blocks (6) one by one are annularly arranged on the top surface of the lower die holder (1) around the axis of the female die (2), the positioning blocks (6) are connected with the T-shaped sliding chutes (12) in a sliding manner, the sliding direction of the positioning blocks is consistent with that of the positioning blocks (6), a plurality of circular calibration lines (13) with different diameters and taking the center of the top surface of the female die (2) as the center of a circle are arranged on the top surface of the lower die holder (1), and a fixing assembly (14) for limiting the movement of the positioning blocks (6) is arranged around the T-shaped sliding chutes (12.

6. The deep-drawing machine according to claim 5, characterized in that the fixing component (14) comprises a slotted hole (141) which is formed in the top surface of the lower die holder (1) and is respectively positioned at two sides of the opening end of the T-shaped sliding groove (12), and a tightening bolt (142) which is vertically inserted in the slotted hole (141) and is in threaded connection with the positioning block (6), wherein the length direction of the slotted hole (141) is consistent with the sliding direction of the positioning block (7).

7. The deep drawing machine according to claim 2, characterized in that a clamping plate (15) which is horizontally arranged and slides along the tightening screw (91) in the vertical direction is sleeved on the tightening screw (91), and clamping nuts (16) which are in threaded connection with the tightening screw (91) are respectively arranged on two sides of the clamping plate (15) in the vertical direction.

8. The deep-drawing machine according to claim 7, characterized in that the bottom surface of the clamping plate (15) far away from the end of the abutting screw (91) is connected with a plurality of vertically arranged springs (17), the bottom end of each spring (17) is connected with a horizontally arranged abutting plate (18), and the rotating radius of the clamping plate (15) is larger than the sum of the lengths of the positioning blocks (6) and the positioning plates (7) in the sliding direction.