CN210497910U

CN210497910U - Punching die for brake disc

Info

Publication number: CN210497910U
Application number: CN201921257112.XU
Authority: CN
Inventors: 蔡济宇
Original assignee: Zhejiang Lingyu Machinery Ltd By Share Ltd
Current assignee: Zhejiang Lingyu Machinery Ltd By Share Ltd
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2020-05-12
Anticipated expiration: 2029-08-05

Abstract

The utility model discloses a cut-out press of brake disc relates to brake disc mould technical field, and its technical scheme main points are: the brake disc positioning device comprises an upper die and a lower die, wherein the lower die is provided with a positioning column matched with a brake disc shaft hole, a positioning rod matched with any mounting hole of a brake disc, and five groove groups distributed circumferentially around the positioning column, the five groove groups are matched with five groups of radiating hole groups arranged on the brake disc in sequence in an adjacent mode, and the upper die is provided with a stamping column group matched with the five groove groups. The upper die and the lower die are matched to complete the stamping of five first-batch radiating hole groups, then the positioning rod is inserted into the adjacent mounting holes by rotating the brake disc, the second-batch radiating hole groups are stamped, the actions are repeated until the stamping of all 30 radiating hole groups is completed, the number of the radiating holes punched in the whole process is small, the requirement on power is low, the size of the die is small, and therefore the production cost is effectively reduced.

Description

Punching die for brake disc

Technical Field

The utility model relates to a brake disc mould technical field, in particular to cut-out press of brake disc.

Background

The brake disc is a necessary part of all vehicle braking systems, is fixed on an axle and rotates together with wheels, when braking, the brake block is pushed to the brake disc under the push of the jaw piston, and the rotating speed of the wheels is reduced through the friction force between the brake block and the brake disc, so that the aim of decelerating and braking the vehicle is fulfilled.

At present, there is a brake disc, as shown in fig. 1, which includes an inner ring portion a1 and an outer ring portion b1, a center of the inner ring portion a1 is a shaft hole a2, 6 mounting holes a3 are uniformly distributed on the inner ring portion a1 around the shaft hole a2, 30 groups of heat dissipation hole groups b2 are provided on the outer ring portion b1, 30 groups of heat dissipation hole groups b2 are uniformly distributed around the shaft hole a2 in the circumferential direction, and each group of heat dissipation hole groups b2 is composed of two heat dissipation hole groups b2 arranged along the axial direction of the outer ring portion b 1. The brake disc generates a large amount of heat due to friction with the brake pad, and a large amount of heat dissipation holes need to be formed in the outer ring part b1 of the brake disc, so that heat dissipation is accelerated, and the service life of the brake disc is prolonged.

The number of the mounting holes is small, the mounting holes are concentrated in the middle of the brake disc, and one-time stamping forming is easy. However, the number of the heat dissipation holes is large, and the heat dissipation holes are uniformly distributed on the outer side of the brake disc, if one-time stamping forming is carried out, a large-tonnage hydraulic machine and a large-size die are needed, and in the actual production process, the production number of the brake disc is not large, and the production cost of the brake disc is increased by using the one-time stamping forming mode.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a cut-out press of brake disc, it has the advantage that reduces the mould size, reduction in production cost.

The above technical purpose of the present invention can be achieved by the following technical solutions: the punching die comprises an upper die and a lower die, wherein the lower die is provided with a positioning column matched with a brake disc shaft hole, a positioning rod matched with any mounting hole of the brake disc and five groove groups distributed circumferentially around the positioning column, the five groove groups are matched with five groups of radiating hole groups arranged on the brake disc in sequence in an adjacent mode, and the upper die is provided with a punching column group matched with the five groove groups.

Through above-mentioned technical scheme, accomplish the punching press of shaft hole and mounting hole on the brake disc earlier, carry out the punching press of louvre again, the shaft hole of brake disc overlaps on the reference column, the locating lever is inserted in arbitrary mounting hole, go up the punching press of mould pushing down in order to accomplish five thermovent groups of first batch, later lift up the brake disc and make mounting hole and locating lever break away from, toward same clockwise or anticlockwise rotation 60 degrees brake disc, make the locating lever insert in the adjacent mounting hole, can punch press the thermovent group of second batch, repeat the above-mentioned punching press of accomplishing whole 30 thermovent groups, the louvre of punching press is small in quantity in whole in-process, low to the power requirement, the size of mould is also little, thereby reduce manufacturing cost effectively.

Preferably, the upper die is provided with two guide rods which are respectively close to the side edges of the two sides of the upper die, and the lower die is provided with two corresponding guide grooves.

Through the technical scheme, the guide rods are always connected in the corresponding guide grooves in a sliding manner, when the brake disc is placed on the lower die, the brake disc is positioned on one side between the two guide rods, and the guide rods cannot interfere with the placement and taking of the brake disc; in the motion process of last mould to lower mould punching press, the guide bar plays the guide effect, avoids appearing the dislocation between last mould and the lower mould, improves the accurate nature of the louvre of punching press.

Preferably, the stamping die further comprises a material pushing plate, the material pushing plate is connected to the two guide rods in a sliding mode, a through hole for the punching column group to pass through is formed in the material pushing plate, and a spring is connected between the material pushing plate and the upper die.

Through the technical scheme, when the lower die is pressed down, the material pushing plate moves downwards along with the lower die and is in contact with the brake disc, and the spring is compressed. When the upper die finishes stamping and moves upwards, the positioning column penetrates through the brake disc, the brake disc is easy to move upwards along with the positioning column under the action of friction force, and at the moment, the material pushing plate moves downwards under the action of the spring and pushes the brake disc away from the positioning column, so that the brake disc is still positioned on the lower die.

Preferably, the positioning rod is connected to the lower die in a sliding mode, a cavity is formed in the lower die, and a lifting mechanism for driving the positioning rod to move up and down is arranged in the cavity.

Through the technical scheme, after the punching of the heat dissipation hole groups of the current batch is completed, the positioning rod is moved downwards by the lifting mechanism, so that the positioning rod is not inserted into the mounting hole any more, the brake disc can rotate without being lifted, and the brake disc is prevented from being strongly rubbed with the positioning column and the positioning rod due to the fact that the lifting angle is not right when the brake disc is lifted; after the brake disc rotates, the positioning rod moves upwards under the action of the lifting mechanism and is inserted into the current mounting hole.

Preferably, elevating system includes gear, rack and drive assembly, the rack links to each other with the locating lever, the length direction of rack is the same with the length direction of locating lever, the gear revolve connects in the cavity, and gear and rack intermeshing are connected, drive assembly is used for drive gear to rotate.

Through above-mentioned technical scheme, the reciprocating of gear revolve back drive rack to drive the removal of locating lever, rack and pinion transmission has longe-lived, and work is steady, characteristics that the reliability is high.

Preferably, drive assembly includes worm wheel and worm, worm wheel and gear coaxial coupling, the worm rotates to be connected in the cavity and is connected with the worm wheel meshing, the one end of worm is worn out outside the lateral wall of lower mould.

Through above-mentioned technical scheme, rotate the tip that the worm is in outside the lower mould, drive the worm wheel and rotate, the gear is along with the worm wheel synchronous rotation to can go up and down to the locating lever, and the worm wheel has one-way transmission's nature with the worm, the worm wheel is difficult to the rotation of the drive worm that reverses, consequently reduces the unexpected circumstances of removing of locating lever appearance.

Preferably, the positioning column is rotatably connected to the lower die, a handle convenient for rotating the positioning column is arranged on the positioning column, and a locking piece for fixing the brake disc is arranged on the positioning column.

Through above-mentioned technical scheme, the locking piece is connected to brake disc and reference column together, and the rethread handle rotates the reference column and accomplishes the rotation with the convenience to the brake disc, and when the brake disc was inserted to the positioning rod, rotatable reference column just can't drive the brake disc and rotate, can not cause the interference to punching a hole promptly.

Preferably, the end part of one end, far away from the lower die, of the positioning column is square, the locking piece comprises a connecting cap and an inserting rod, the connecting cap is sleeved on the square end part of the positioning column, one end of the inserting rod is connected to the outer side wall of the connecting cap, the other end of the inserting rod is vertically bent downwards, and the inserting rod is used for being connected with a mounting hole in the brake disc.

Through above-mentioned technical scheme, when connecting the cap cover and receiving on the reference column, with connect the peg graft of cap connection and connect in arbitrary mounting hole, move down the locating lever again, the brake disc is accomplished promptly and is connected with the reference column, rotate and connect the cap and can drive the reference column and rotate, and then drive the brake disc and rotate.

To sum up, the utility model discloses the beneficial effect who contrasts in prior art does: through the mode of punching press, the partial louvre of single punching press many times, use the mould of small volume can accomplish punching a hole of the louvre of whole brake disc to the location to the brake disc is convenient, and it is also very convenient to rotate the brake disc.

Drawings

FIG. 1 is a schematic structural diagram of a brake disc in the prior art;

FIG. 2 is a schematic view of the overall structure of the embodiment;

FIG. 3 is an exploded view of the locking member and the positioning post of the embodiment;

fig. 4 is a schematic structural diagram of the lifting assembly in the embodiment.

Reference numerals: 1. an upper die; 11. punching a column group; 12. a guide rod; 2. a lower die; 21. a groove group; 22. a cavity; 23. a lead groove is connected; 3. a positioning column; 4. positioning a rod; 5. a material pushing plate; 51. a through hole; 52. a spring; 6. a lifting mechanism; 61. a gear; 62. a rack; 63. a drive assembly; 631. a worm gear; 632. a worm; 7. a locking member; 71. a connecting cap; 72. a plug rod; 73. a handle; a1, an inner ring part; a2, shaft hole; a3, mounting holes; b1, outer ring portion; b2, and a heat dissipation hole group.

Detailed Description

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

The utility model provides a cut-out press of brake disc, as shown in fig. 2, includes mould 1, scraping wings 5 and lower mould 2, is equipped with two guide bars 12 on going up mould 1, and two guide bars 12 are close to the both sides side of mould 1 respectively, go up and still be equipped with on the mould 1 with five punching press post groups 11, all punching press post groups 11 all are in between two guide bars 12 to the distribution of punching press post group 11 is the same with the distribution of five adjacent cooling hole groups of group on the brake disc. The material pushing plate 5 is connected to the two guide rods 12 in a sliding mode, a through hole 51 for the punching column group 11 to pass through is formed in the material pushing plate 5, two springs 52 are connected between the material pushing plate 5 and the upper die 1, and the two springs 52 are sleeved on the two guide rods 12 respectively. The lower die 2 is provided with a positioning column 3, two guide grooves 23 respectively matched with the two guide rods 12, a positioning rod 4 positioned on one side of the positioning column 3, and five groove groups 21 circumferentially distributed around the positioning column 3, the groove groups 21 are in one-to-one correspondence with the stamping column groups 11, the positioning column 3 is positioned on one side of the two guide grooves 23, and the positioning rod 4 and the groove groups 21 are positioned in a triangular area surrounded by the positioning column 3 and the two guide grooves 23.

Referring to fig. 3, the positioning rod 4 is slidably connected to the lower mold 2, a cavity 22 is formed in the lower mold 2, and a lifting mechanism 6 for driving the positioning rod 4 to move up and down is arranged in the cavity 22. Elevating system 6 includes gear 61, rack 62 and drive assembly 63, drive assembly 63 includes worm wheel 631 and worm 632, rack 62 links to each other with locating lever 4, the length direction of rack 62 is the same with the length direction of locating lever 4, gear 61 rotates and connects in cavity 22, and gear 61 is connected with rack 62 intermeshing, worm wheel 631 and gear 61 coaxial coupling, worm 632 rotates to be connected in cavity 22 and is connected with worm wheel 631 meshing, the one end of worm 632 is worn out outside the lateral wall of lower mould 2.

Referring to fig. 1 and 2, the positioning column 3 is rotatably connected to the lower die 2, and a locking piece 7 for fixing the brake disc is arranged on the positioning column 3. The end part of one end of the positioning column 3, which is far away from the lower die 2, is square, the locking piece 7 comprises a connecting cap 71 and an insertion rod 72, one end of the connecting cap 71 is provided with a groove matched with the shape of the upper end part of the positioning column 3, the connecting cap 71 is sleeved on the upper end part of the positioning column 3, and one end of the connecting cap 71 is fixed with a handle 73. One end of the plug rod 72 is connected to the outer side wall of the connecting cap 71, and the other end of the plug rod 72 is vertically bent downwards.

In the actual operation process, the locking piece 7 is taken down firstly, the shaft hole of the brake disc to be punched is sleeved on the positioning column 3, the positioning rod 4 is inserted into any mounting hole, the upper die 1 is pressed down to complete the punching of the five heat dissipation hole groups of the first batch, then the upper die 1 is moved upwards, and the material pushing plate 5 limits the brake disc to move along with the upper die 1. Utilize elevating system 6 to move down locating lever 4, make locating lever 4 no longer insert in the mounting hole, install locking piece 7 on reference column 3 this moment, peg graft pole 72 inserts in arbitrary mounting hole, rotate handle 73 on the locking piece 7, make reference column 3 drive the brake disc and rotate 60 degrees towards clockwise, later repeat the louvre that above-mentioned operation carried out next batch and punch a hole.

The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims.

Claims

1. The utility model provides a cut-out press of brake disc which characterized by: including last mould (1) and lower mould (2), be equipped with on lower mould (2) with brake disc shaft hole assorted reference column (3), with locating lever (4) of arbitrary mounting hole looks adaptation of brake disc, five groove groups (21) that distribute around reference column (3) circumference, five groove groups (21) and five groups on the brake disc are adjacent arranged's cooling hole group looks adaptations in proper order, go up the punching press post group (11) that are equipped with on mould (1) and five groove groups (21) looks adaptations.

2. The punching die for the brake disc as claimed in claim 1, wherein: go up to be equipped with two guide rod (12) on mould (1), two guide rod (12) are close to the both sides side of going up mould (1) respectively, be equipped with two corresponding connecing on lower mould (2) and lead groove (23).

3. The punching die for the brake disc as claimed in claim 2, wherein: the stamping die is characterized by further comprising a material pushing plate (5), wherein the material pushing plate (5) is connected to the two guide rods (12) in a sliding mode, a through hole (51) for the stamping column group (11) to pass through is formed in the material pushing plate (5), and a spring (52) is connected between the material pushing plate (5) and the upper die (1).

4. The punching die for the brake disc as claimed in claim 1, wherein: the positioning rod (4) is connected to the lower die (2) in a sliding mode, a cavity (22) is formed in the lower die (2), and a lifting mechanism (6) for driving the positioning rod (4) to move up and down is arranged in the cavity (22).

5. The punching die for the brake disc as claimed in claim 4, wherein: elevating system (6) include gear (61), rack (62) and drive assembly (63), rack (62) link to each other with locating lever (4), the length direction of rack (62) is the same with the length direction of locating lever (4), gear (61) rotate to be connected in cavity (22), and gear (61) and rack (62) intermeshing are connected, drive assembly (63) are used for drive gear (61) to rotate.

6. The punching die for the brake disc as claimed in claim 5, wherein: drive assembly (63) includes worm wheel (631) and worm (632), worm wheel (631) and gear (61) coaxial coupling, worm (632) rotate to be connected in cavity (22) and be connected with worm wheel (631) meshing, the one end of worm (632) is worn out outside the lateral wall of lower mould (2).

7. The punching die for the brake disc as claimed in claim 1, wherein: reference column (3) rotate to be connected on lower mould (2), be equipped with handle (73) of being convenient for rotate reference column (3) on reference column (3), be equipped with locking piece (7) of fixed brake disc on reference column (3).

8. The punching die for the brake disc as claimed in claim 7, wherein: the end part, far away from the lower die (2), of one end of the positioning column (3) is square, the locking piece (7) comprises a connecting cap (71) and an inserting rod (72), the connecting cap (71) is sleeved on the square end of the positioning column (3), one end of the inserting rod (72) is connected to the outer side wall of the connecting cap (71), the other end of the inserting rod (72) is vertically bent downwards, and the inserting rod (72) is used for being connected with a mounting hole in a brake disc.