CN107414004B

CN107414004B - Material ejection braking device on bearing forging die

Info

Publication number: CN107414004B
Application number: CN201710648981.4A
Authority: CN
Inventors: 胡伟勇; 王峰; 黄涛; 王仁东
Original assignee: ZHEJIANG ZHONGJI FOUNDRY AND FORGING CO Ltd
Current assignee: ZHEJIANG ZHONGJI FOUNDRY AND FORGING CO Ltd
Priority date: 2017-08-01
Filing date: 2017-08-01
Publication date: 2023-05-12
Anticipated expiration: 2037-08-01
Also published as: CN107414004A

Abstract

The utility model provides a liftout arresting gear on bearing forges mould, including last mould and lower mould, install the liftout pipe cover on the lower mould, install the directional complex arresting gear on the liftout pipe cover, arresting gear is including fixing the first connecting plate on the lower mould side lathe, be fixed with on the first connecting plate, fixedly connected with servo motor support on the first support, servo motor fixes on the servo motor support, servo motor's pivot key is connected with the eccentric wheel, it has the flexible cover to articulate on the side of eccentric wheel, the flexible cover is the level grafting in first support, the flexible cover inserts and is fixed with the connecting rod, the connecting rod other end grafting is fixed at the articulated support, it has the linking bridge to peg graft in the articulated support, the linking bridge comprises vertical first branch, convex articulated portion between horizontal second branch and first branch and the second branch. The cooling effect of the forging die can be improved, and meanwhile, workpieces subjected to forging are prevented from falling into the lower die due to burrs.

Description

Material ejection braking device on bearing forging die

Technical field:

the invention relates to the technical field of bearing forging equipment, in particular to a material ejection braking device on a bearing forging die.

The background technology is as follows:

the bearing is an important part in modern equipment. The bearings may be classified into sliding bearings and rolling bearings according to frictional properties, and the rolling bearings consist of an outer ring, an inner ring, balls and a cage. The outer ring or the inner ring of the rolling bearing is generally forged by a bar stock and then is formed by turning. Forging is an important processing mode in bearing manufacturing. The prior art bearing ring forging mode is shown in fig. 1, which is formed into a bar stock A through blanking, is formed into a round cake B through upsetting, is formed into a first forging C through stamping, is formed into a second forging D through punching the center of the first forging C, and is finally formed into a semi-finished product E through forming stamping, while the prior art die is shown in fig. 2, which comprises an upper die 1 and a lower die 2, a KO pipe sleeve 3 (liftout pipe sleeve) is arranged on the lower die 2, and the prior KO pipe sleeve 3 can only realize immediate reset after the forging is jacked up, but has the following defects: 1. after KO, the KO sleeve is immediately retracted by the spring, and the cooling effect of the lower die is poor; 2. when the PKO sleeve is placed into the O ring, the forging piece can be directly pressed in, but the PKO sleeve covers the punch, so that the cooling effect on the manipulator is poor; 3. due to burrs, the KO rear forging piece and the KO sleeve are retracted into the lower die together and touch the manipulator.

The invention comprises the following steps:

the invention aims at overcoming the defects of the prior art, and provides a material ejection braking device on a bearing forging die, which can improve the cooling effect of the forging die and prevent forged workpieces from falling into a lower die due to burrs.

The material ejection braking device comprises an upper die and a lower die, wherein a material ejection pipe sleeve is arranged on the lower die, a matched braking device is arranged on the material ejection pipe sleeve, the braking device comprises a first connecting plate fixed on a machine tool on the side of the lower die, a first support is fixed on the first connecting plate, a servo motor support is fixedly connected to the first support, a servo motor is fixed on the servo motor support, a rotating shaft key of the servo motor is connected with an eccentric wheel, a telescopic sleeve is hinged on the side edge of the eccentric wheel and horizontally inserted in the first support, a connecting rod is fixedly inserted in the telescopic sleeve, the other end of the connecting rod is fixedly inserted in a hinged support, a linkage support is inserted in the hinged support, the linkage support consists of a vertical first support rod, a horizontal second support rod and a circular arc-shaped hinging part between the first support rod and the second support rod, the upper end of the first support rod on the linkage support is hinged on the hinged support through a first hinging shaft, and the hinging part on the linkage support is hinged with a vertical supporting plate through a second hinging shaft; the upper end of the supporting plate is fixed on a second connecting plate which is fixed on a machine tool at the side of the lower die;

the end of the second supporting rod on the linkage support is fixedly provided with a conical plug, two opposite clamping blocks are arranged below the plug, the lower ends of the clamping blocks are hinged through a third hinge shaft and are arranged on a machine tool on the side of the lower die, circular arc clamping grooves are formed in the opposite sides of the clamping blocks, jacking pipe sleeves are clamped in the circular arc clamping grooves of the clamping blocks, the upper ends of the two clamping blocks are inserted and connected with horizontal bolts, nuts are screwed on the bolts, a plurality of belleville springs are inserted and sleeved at the two ends of the bolts, the belleville springs are pressed against the clamping blocks, guide wheels are hinged to the upper ends of the clamping blocks through screws, and the plug is inserted and connected between the guide wheels of the clamping blocks.

The lower end surfaces of the first connecting plate and the second connecting plate are positioned in the same plane.

The hinged support is -shaped, the front end of the hinged support is formed with a round corner, and the connecting rod is inserted into the rear end of the hinged support and fixed by a screw.

The second connecting plate is provided with slots, the linkage support is inserted into the slots of the second connecting plate, two support plates are arranged, and the support plates are distributed on two sides of the linkage support.

The invention has the beneficial effects that:

1. after the KO is completed, the KO sleeve is braked, the KO sleeve is stopped in front of the lower die, and female die cooling is performed. When the forging piece enters the female die, a servo motor is started, braking is opened, KO is downwards pressed, and therefore the cooling effect of the side of the lower die is effectively improved.

2. The KO sleeve is braked until the forging piece enters the lower die, and the forging piece is pressed under the state that the punch and the KO sleeve keep the forging piece. And water is introduced into the PKO sleeve, the PKO sleeve is kept at the lower side when the sliding block is at the rear dead point, the punch is cooled, and the cooling effect of the upper die side is improved.

3. The last step of the die adopted by the method is that burrs exist on the inner wall of the forging piece, the forging piece is inserted on the punch head and is lifted along with the action of the punch head and the KO sleeve to be separated from the lower die, and then the forging piece is separated from the punch head through the baffle plate, so that the KO sleeve is braked, and the forging piece can be prevented from falling into the lower die.

Description of the drawings:

FIG. 1 is a schematic illustration of a bearing ring forging process;

FIG. 2 is a schematic view of the bearing ring forging die;

FIG. 3 is a schematic elevational view of the brake device of the present invention;

FIG. 4 is a schematic top view of the brake device of the present invention;

FIG. 5 is a schematic diagram showing the comparison of no braking and braking when the lower mold side is cooled;

FIG. 6 is a schematic diagram showing the upper mold side cooling without braking and with braking;

FIG. 7 is a schematic diagram showing the comparison of no braking and braking after forging of the workpiece.

In the figure: 1. an upper die; 2. a lower die; 3. jacking a pipe sleeve; 4. a first connection plate; 5. a first support; 6. an eccentric wheel; 7. a servo motor; 8. a servo motor bracket; 9. a telescopic sleeve; 10. a connecting rod; 11. a hinged bracket; 12. a rear baffle; 121. a first strut; 122. a hinge part; 123. a second strut; 13. a first hinge shaft; 14. a second connecting plate; 15. a support plate; 16. a plug; 17. clamping blocks; 18. a third hinge shaft; 19. a bolt; 20. a belleville spring; 21. a screw cap; 22. a guide wheel; 23. and a second hinge shaft.

The specific embodiment is as follows:

examples: as shown in fig. 2, 3 and 4, a material ejection braking device on a bearing forging die comprises an upper die 1 and a lower die 2, wherein a material ejection pipe sleeve 3 is arranged on the lower die 2, a matched braking device is arranged on the material ejection pipe sleeve 3, the braking device comprises a first connecting plate 4 fixed on a machine tool at the side of the lower die 2, a first support 5 is fixed on the first connecting plate 4, a servo motor support 8 is fixedly connected on the first support 5, a servo motor 7 is fixed on the servo motor support 8, a rotating shaft key of the servo motor 7 is connected with an eccentric wheel 6, a telescopic sleeve 9 is hinged on the side edge of the eccentric wheel 6, the telescopic sleeve 9 is horizontally inserted and connected in the first support 5, a connecting rod 10 is fixedly inserted into the telescopic sleeve 9, the other end of the connecting rod 10 is inserted and connected with a hinged support 11, a linkage support 12 is inserted and connected in the hinged support 11, the linkage support 12 consists of a vertical first support rod 121, a horizontal second support rod 123 and a circular arc-shaped hinged part 122 between the first support rod 121 and the second support rod 123, the upper end of the first support rod 121 is hinged on the linkage support 12 through a first hinge shaft 13, the side of the telescopic sleeve 9 is hinged on the hinge support plate 11, and the second support plate is hinged with the second support plate 122 through the circular arc-shaped hinged part of the hinge part 122; the upper end of the supporting plate 15 is fixed on the second connecting plate 14, and the second connecting plate 14 is fixed on the machine tool on the side of the lower die 2;

the end of the second supporting rod 123 on the linkage support 12 is fixed with a conical plug 16, two opposite clamping blocks 17 are arranged under the plug 16, the lower ends of the clamping blocks 17 are hinged through a third hinge shaft 18 and are arranged on a machine tool on the side of the lower die 2, circular arc-shaped clamping grooves are formed in the opposite side edges of the clamping blocks 17, a jacking pipe sleeve 3 is clamped in the circular arc-shaped clamping grooves of the clamping blocks 17, horizontal bolts 19 are inserted at the upper ends of the two clamping blocks 17, nuts 21 are screwed on the bolts 19, a plurality of disc springs 20 are inserted at the two ends of the bolts 19, the disc springs 20 are pressed against the clamping blocks 17, guide wheels 22 are hinged at the upper ends of the clamping blocks 17 through screws, and the plug 16 is inserted between the guide wheels 22 of the clamping blocks 17.

The lower end surfaces of the first connecting plate 4 and the second connecting plate 14 are positioned in the same plane.

The hinged support 11 is -shaped, a round corner is formed at the front end of the hinged support 11, and the connecting rod 10 is inserted into the rear end of the hinged support 11 and fixed by a screw.

The second connecting plate 14 is provided with slots 141, the linkage support 12 is inserted into the slots 141 of the second connecting plate 14, two support plates 15 are arranged, and the support plates 15 are distributed on two sides of the linkage support 12.

Working principle: the invention relates to a liftout brake device on a bearing forging die, which is mainly technically characterized in that the brake device is driven by a private clothes motor 7, and a telescopic sleeve 9 stretches on a first support 5 through an eccentric wheel 6, so that a linkage support 12 is driven to rotate around a second hinge shaft 23, a plug 16 is driven to ascend or descend, the plug 16 ascends, and a clamping block 17 clamps a liftout pipe sleeve 3 to realize braking;

schematic diagrams of the top material pipe sleeve 3 for realizing private braking and no braking are shown in fig. 5, 6 and 7 respectively; FIG. 5 is a schematic diagram of lower mold side cooling, left side brake-less, right side brake; FIG. 6 is a schematic diagram of upper mold side cooling, left side brake-less, right side brake; FIG. 7 is a schematic diagram of a workpiece burr problem; the left side is brake-free, and the right side is brake-free.

The examples are presented to illustrate the invention and are not intended to limit the invention. Modifications to the described embodiment may occur to those skilled in the art without departing from the spirit and scope of the invention, and the invention is therefore to be construed as limited by the appended claims.

Claims

1. The utility model provides a liftout arresting gear on bearing forges mould, includes mould (1) and lower mould (2), is equipped with liftout pipe box (3) on lower mould (2), is equipped with matched with arresting gear on liftout pipe box (3), its characterized in that: the braking device comprises a first connecting plate (4) fixed on a side machine tool of a lower die (2), a first support (5) is fixed on the first connecting plate (4), a servo motor support (8) is fixedly connected to the first support (5), a servo motor (7) is fixed on the servo motor support (8), an eccentric wheel (6) is connected to a rotating shaft key of the servo motor (7), a telescopic sleeve (9) is hinged to the side edge of the eccentric wheel (6), the telescopic sleeve (9) is horizontally inserted and connected into the first support (5), a connecting rod (10) is fixedly inserted into the telescopic sleeve (9), the other end of the connecting rod (10) is inserted and connected into a hinged support (11), a linkage support (12) is inserted into the hinged support (11), the linkage support (12) consists of a vertical first support rod (121), a horizontal second support rod (123) and a circular arc-shaped hinging part (122) between the first support rod (121) and the second support rod (123), the upper end of the first support rod (121) is hinged to the hinged support (11) through a first hinging shaft (13), and the upper end of the first support rod (121) is hinged to the hinging support (11) through a vertical hinging part (23) on the hinging support (23); the upper end of the supporting plate (15) is fixed on a second connecting plate (14), and the second connecting plate (14) is fixed on a machine tool at the side of the lower die (2);

the end of a second supporting rod (123) on the linkage support (12) is fixedly provided with a conical plug (16), two opposite clamping blocks (17) are arranged below the plug (16), the lower ends of the clamping blocks (17) are hinged through a third hinge shaft (18) and are arranged on a machine tool on the side of a lower die (2), circular arc clamping grooves are formed in the opposite side edges of the clamping blocks (17), a jacking pipe sleeve (3) is clamped in the circular arc clamping grooves of the clamping blocks (17), the upper ends of the two clamping blocks (17) are inserted with horizontal bolts (19), nuts (21) are connected onto the bolts (19) in a threaded mode, two ends of the bolts (19) are inserted with a plurality of disc springs (20), the disc springs (20) are pressed against the clamping blocks (17), guide wheels (22) are hinged to the upper ends of the clamping blocks (17) through bolts, and the plugs (16) are inserted between the guide wheels (22) of the clamping blocks (17).

2. A liftout brake assembly on a bearing forging die as recited in claim 1, wherein: the lower end surfaces of the first connecting plate (4) and the second connecting plate (14) are positioned in the same plane.

3. A liftout brake assembly on a bearing forging die as recited in claim 1, wherein: the hinged support (11) is -shaped, a round corner is formed at the front end of the hinged support (11), and the connecting rod (10) is inserted into the rear end of the hinged support (11) and fixed through a screw.

4. A liftout brake assembly on a bearing forging die as recited in claim 1, wherein: the second connecting plate (14) is provided with slots (141), the linkage support (12) is inserted into the slots (141) of the second connecting plate (14), two support plates (15) are arranged, and the support plates (15) are distributed on two sides of the linkage support (12).