CN213033532U

CN213033532U - High-precision hydraulic machine for producing brake shoe bolt

Info

Publication number: CN213033532U
Application number: CN202021820637.2U
Authority: CN
Inventors: 李琨; 诸培深
Original assignee: Nanjing Zhonghe Railway Accessories Co ltd
Current assignee: Nanjing Zhonghe Railway Accessories Co ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-04-23
Anticipated expiration: 2030-08-26

Abstract

The utility model relates to a high accuracy hydraulic press for producing brake shoe bolt, it contains the last mould and the lower mould of installing on the hydraulic press, one side of going up the mould is connected with clearance frame through last connecting piece, one side of lower mould is connected with clearance frame down through lower connecting piece, upward be equipped with the tuber pipe on the clearance frame, be equipped with down the tuber pipe down on the clearance frame, go up and seted up a plurality of exhaust vents on tuber pipe and the tuber pipe down respectively, be located go up the setting of forging and pressing face direction of the last mould of exhaust vent orientation on the tuber pipe, be located down the setting of forging and pressing face direction of exhaust vent orientation lower mould on the tuber pipe, one side of hydraulic press still is equipped with the fan, be equipped with the tuber pipe on the fan, the tuber pipe is linked together through intercommunication piece and last tuber pipe. The application has the technical effects that: the forging and pressing surfaces of the upper die and the lower die, which are adhered by the scraps, are reduced, the possibility of uneven pressure distribution between the upper die and the lower die is caused, and the forging and pressing precision of the brake shoe bolt is improved.

Description

High-precision hydraulic machine for producing brake shoe bolt

Technical Field

The application relates to the technical field of hydraulic presses, in particular to a high-precision hydraulic press for producing brake shoe bolts.

Background

The hydraulic press is a machine for processing products such as metal, plastic, rubber, wood, powder and the like by using hydrostatic pressure. It is commonly used in press processes and press forming processes, such as: forging, stamping, cold extruding, straightening, bending, flanging, sheet drawing, powder metallurgy, press fitting and the like.

The brake shoe bolt is a connecting part between a brake shoe and a brake head of a railway wagon, most of brake shoe bolts in the related technology are forged and pressed by common carbon structural steel, and a hydraulic press is usually used in the forging and pressing process.

The technical scheme has the following defects: when the brake shoe bolt is forged and pressed by using the hydraulic press, an upper die and a lower die which are matched with the brake shoe bolt need to be correspondingly installed on the hydraulic press, and after the brake shoe bolt is forged and pressed, partial scraps are adhered to the forging and pressing surfaces of the upper die and the lower die, so that the pressure distribution between the upper die and the lower die is uneven, and the forging and pressing precision of the brake shoe bolt is influenced.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that the sweeps that produces influences brake shoe bolt forging and pressing precision in the pressing process, the application provides a high accuracy hydraulic press for producing brake shoe bolt, adopts following technical scheme: the utility model provides a high accuracy hydraulic press for producing brake shoe bolt contains and installs last mould and lower mould on the hydraulic press, one side of going up the mould is connected with clearance frame through last connecting piece, one side of lower mould is connected with clearance frame down through connecting piece down, be equipped with the tuber pipe on going up the clearance frame, be equipped with down the tuber pipe on the clearance frame down, the lower mould is located between tuber pipe and the tuber pipe down, a plurality of exhaust vents have been seted up on last tuber pipe and the tuber pipe down respectively, are located the exhaust vent on the tuber pipe sets up towards the forging and pressing face direction of last mould, is located the exhaust vent on the tuber pipe down sets up towards the forging and pressing face direction of lower mould, one side of hydraulic press still is equipped with the fan, be equipped with out the tuber pipe on the fan, it is linked together through intercommunication piece and last tuber pipe.

Through the technical scheme, after the forging and pressing was accomplished, the staff can start the fan and blow the air current in tuber pipe and the leeward of making progress through the connecting piece, the air current of being blown in tuber pipe and the leeward can evenly blow off from a plurality of air outlets, the sweeps that will adhere on last mould and lower mould forging and pressing face blows off, thereby reached the effect of clearing up the forging and pressing face of last mould and lower mould, the sweeps adhesion has been reduced and the forging and pressing face of mould and lower mould has been gone up, lead to the uneven possibility of pressure distribution between last mould and the lower mould, thereby the forging and pressing precision of brake shoe bolt has been promoted.

Preferably, the upper connecting piece comprises a fixing plate arranged on the upper die, the upper cleaning frame is penetrated and connected with a plurality of connecting bolts in a threaded manner, and the end parts of the connecting bolts are respectively connected in the fixing plate in a threaded manner.

Through the technical scheme, the upper cleaning frame is difficult to separate from the fixed plate under the limitation of the connecting bolts; simultaneously, the mode that staff's accessible bolt was dismantled unloads a plurality of connecting bolt, unloads upper cleaning frame from the fixed plate then to reached and to have dismantled the effect of connecting on last mould with upper cleaning frame.

Preferably, the lower connecting piece comprises a plurality of fixing rods arranged on the lower cleaning frame, a plurality of fixing grooves matched with the fixing rods are correspondingly formed in the side wall of the lower die, rubber pads are further arranged on the outer edges of the plurality of fixing rods respectively, the plurality of fixing rods are correspondingly inserted into the fixing grooves respectively, and the rubber pads are abutted against the groove walls of the fixing grooves.

Through the technical scheme, the friction force between the fixing groove and the fixing rod is increased due to the arrangement of the rubber pad, so that the fixing rod is difficult to separate from the fixing groove, and the lower cleaning frame can be stably connected to the lower die; simultaneously, the staff can also lift lower clearance frame off from the lower mould through the mode of extracting the dead lever from the fixed slot hard to reach and to dismantle the effect of connecting on the lower mould with lower clearance frame.

Preferably, an annular guide groove is formed in an opening of the fixing groove, and an annular chamfer is formed in the end portion, far away from the lower cleaning frame, of the fixing rod.

Through above-mentioned technical scheme, the setting of guide way and chamfer all has the effect of direction to in the fixed slot can be pegged graft fast under the guide of chamfer and guide way to the dead lever, thereby efficiency when having improved staff's installation clearance frame down.

Preferably, the communicating piece comprises a three-way pipe communicated with the air outlet pipe, and the upper air pipe and the lower air pipe are respectively communicated with the other two ends of the three-way pipe through plastic hoses.

Through above-mentioned technical scheme, can at first enter into the tee bend intraductal from the air-out air current that the tuber pipe department blew out, the tee bend pipe can shunt the air current to the air current can flow supreme tuber pipe and tuber pipe down respectively through two plastic hose, thereby reached the effect that will go out tuber pipe and last tuber pipe and tuber pipe intercommunication each other down.

Preferably, a plurality of positioning plates are further arranged on the lower cleaning frame, and the positioning plates are abutted against the side face, close to the lower cleaning frame, of the lower die, and part of the positioning plates extends out of the lower die.

Through above-mentioned technical scheme, the setting of locating plate has the effect of instructing the location to when needs forge and press the brake shoe bolt, the staff can adjust the forging and pressing piece to suitable forging and pressing position through the mode of propping tightly each other with forging and pressing piece and locating plate, thereby efficiency when having improved the staff and forging and pressing the brake shoe bolt.

Preferably, a plurality of the positioning plates are respectively provided with a cleaning hole.

Through above-mentioned technical scheme, the setting up of clearance hole has increased the permeability of locating plate, has reduced the sweeps of adhesion on die forging pressure face down and has been blockked by the locating plate and be difficult to by the possibility of clearance to the sweeps of adhesion can be followed clearance hole and is cleared up out the lower mould fast on the lower mould.

Preferably, the lower air pipe is provided with a lower baffle, and a plurality of air outlet holes in the lower air pipe are positioned between the lower baffle and the lower die.

Through the technical scheme, the scraps falling to the air outlet of the lower air pipe can be blocked by the lower baffle, so that the possibility that the air outlet on the lower air pipe is blocked by the scraps is reduced, and the lower air pipe can stably clean the forging surface of the lower die; meanwhile, the baffle also has the function of gathering air flow, and the air flow blown out from the air outlet of the lower air pipe can be blocked by the baffle and gathered in the direction of the lower die forging pressing surface, so that the cleaning effect of the lower air pipe on the lower die is further improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the forging and pressing surfaces of the upper die and the lower die can be cleaned by airflow blown by the upper air pipe and the lower air pipe, so that the possibility that scraps are adhered to the forging and pressing surfaces of the upper die and the lower die to cause uneven pressure distribution between the upper die and the lower die is reduced, and the forging and pressing precision of the brake shoe bolt is improved;

2. the setting of locating plate makes the staff can adjust the forging and pressing spare to suitable forging and pressing position according to the instruction of locating plate fast to efficiency when having improved the staff and having forged and pressed the brake shoe bolt.

Drawings

Fig. 1 is a schematic view of the overall structure of the present embodiment.

Fig. 2 is a schematic structural diagram of the upper connecting member according to the present embodiment.

Fig. 3 is an exploded view of the present embodiment for embodying the lower connector.

Reference numerals: 1. a hydraulic press; 2. an upper die; 3. a lower die; 4. an upper connecting piece; 5. an upper cleaning frame; 6. a lower connecting piece; 7. a lower cleaning frame; 8. an upper air pipe; 9. a lower air duct; 10. an air outlet; 11. a fan; 12. an air outlet pipe; 13. a communicating member; 14. a fixing plate; 15. a connecting bolt; 16. fixing the rod; 17. fixing grooves; 18. a rubber pad; 19. a guide groove; 21. a three-way pipe; 22. a plastic hose; 23. positioning a plate; 24. cleaning the holes; 25. a lower baffle plate; 26. and an upper baffle plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a high-precision hydraulic machine for producing a brake shoe bolt. As shown in fig. 1 and 2, the cleaning device comprises an upper die 2 and a lower die 3 which are correspondingly installed on a hydraulic machine 1, one side of the upper die 2 is connected with an upper cleaning frame 5 through an upper connecting piece 4, an upper air pipe 8 is fixedly connected onto the upper cleaning frame 5, one side of the lower die 3 is connected with a lower cleaning frame 7 through a lower connecting piece 6, a lower air pipe 9 is fixedly connected onto the lower cleaning frame 7, and the upper die 2 and the lower die 3 are located between the upper air pipe 8 and the lower air pipe 9.

As shown in fig. 1 and 2, a fan 11 is fixedly connected to one side of the hydraulic machine 1, an air outlet of the fan 11 is communicated with an air outlet pipe 12, one end, far away from the fan 11, of the air outlet pipe 12 is communicated with an upper air pipe 8 and a lower air pipe 9 through a communicating piece 13, a plurality of air outlet holes 10 are uniformly formed in the upper air pipe 8 and the lower air pipe 9 respectively, the air outlet holes 10 in the upper air pipe 8 are arranged in an inclined manner towards the forging surface direction of the upper die 2, and the air outlet holes 10 in the lower air pipe 9 are arranged in an inclined manner towards the forging surface direction of the lower die 3. Therefore, the fan 11 can blow the air current to the upper air pipe 8 and the lower air pipe 9 through the air outlet pipe 12 and the communicating piece 13 when starting, the air current that enters into the upper air pipe 8 can blow the forging and pressing face of the upper die 2 along the air outlet 10, the air current that enters into the lower air pipe 9 can blow the forging and pressing face of the lower die 3 along the air outlet 10, the sweeps of adhesion on the forging and pressing face of the upper die 2 and the lower die 3 are blown down, thereby the effect of cleaning the forging and pressing face of the upper die 2 and the lower die 3 is achieved, the forging and pressing face of the sweeps adhesion on the upper die 2 and the lower die 3 is reduced, the possibility of uneven pressure distribution between the upper die 2 and the lower die 3 is caused, and the forging and pressing precision of the brake shoe bolt is.

As shown in fig. 2, the communication member 13 is provided with: the three-way pipe comprises a three-way pipe 21 communicated with an air outlet pipe 12, two ports of the three-way pipe 21 far away from the air outlet pipe 12 are respectively communicated with plastic hoses 22, and one ends of the two plastic hoses 22 far away from the three-way pipe 21 are respectively communicated with an upper air pipe 8 and a lower air pipe 9. Therefore, when the upper die 2 drives the upper cleaning frame 5 to lift along the vertical direction for forging, the plastic hose 22 can move synchronously along with the upper air pipe 8; when the fan 11 starts, the air flow blown out from the air outlet pipe 12 can be firstly blown to the three-way pipe 21, and then flows into the upper air pipe 8 and the lower air pipe 9 respectively along the two plastic hoses 22, so that the upper air pipe 8 and the lower air pipe 9 can stably clean the upper die 2 and the lower die 3.

As shown in fig. 2, the upper link 4 is provided: contain fixed connection at last fixed plate 14 on mould 2 lateral walls, wear to establish and threaded connection has a plurality of connecting bolt 15 along vertical direction on the last clearance frame 5, and last clearance frame 5 is through the mode of a plurality of connecting bolt 15 threaded connection in fixed plate 14 and last mould 2 interconnect.

As shown in fig. 2 and 3, the lower link 6 is provided: contain a plurality of fixed dead levers 16 that set up on lower clearance frame 7, the outer fringe bonding cladding of dead lever 16 has rubber pad 18, and lower mould 3 corresponds on the side of clearance frame 7 down and offers a plurality ofly and dead lever 16 assorted fixed slots 17, and when a plurality of dead levers 16 correspond respectively and peg graft in a plurality of fixed slots 17, rubber pad 18 was supported tightly between the cell wall of dead lever 16 and fixed slot 17. Therefore, the lower cleaning frame 7 is not easy to separate from the lower die 3 under the limitation of the rubber pad 18 and the fixing rod 16, so that the effect of mutually connecting the lower cleaning frame 7 and the lower die 3 is achieved; simultaneously, the mode that staff's accessible bolt was dismantled unloads upper cleaning frame 5, then through the mode of pulling out dead lever 16 from fixed slot 17 internal force, unloads lower cleaning frame 7 from lower mould 3 to the staff can change last mould 2 and lower mould 3, thereby has improved upper cleaning frame 5 and lower cleaning frame 7 to the suitability of different specification brake shoe bolts.

As shown in fig. 3, the end of the fixing rod 16 far away from the lower cleaning frame 7 is provided with an arc-shaped chamfer along the periphery, the opening of the fixing groove 17 is provided with an annular guide groove 19 along the periphery, the chamfer and the guide groove 19 are arranged to have the function of indicating the guide, so that when an operator installs the lower cleaning frame 7, the fixing rod 16 can be smoothly abutted and tightly inserted into the fixing groove 17, the possibility that the fixing rod 16 and the fixing groove 17 are difficult to align with each other when the operator installs the lower cleaning frame 7 is reduced, and the efficiency of the operator installing the lower cleaning frame 7 is improved.

As shown in fig. 2, an upper baffle 26 is fixedly arranged on the upper air duct 8 along the length direction, a lower baffle 25 is fixedly arranged on the lower air duct 9 along the length direction, and the upper baffle 26 and the lower baffle 25 are located between the air outlet on the upper air duct 8 and the air outlet on the lower air duct 9. Therefore, the upper baffle 26 and the lower baffle 25 have the function of converging the air flow, so that the air flow blown by the upper air pipe 8 and the lower air pipe 9 can be converged in the forging and pressing surface direction of the upper die 2 and the lower die 3, the strength of the air flow blown by the upper air pipe 8 and the lower air pipe 9 is enhanced, and the cleaning effect of the upper air pipe 8 and the lower air pipe 9 is further enhanced.

As shown in fig. 3, the lower cleaning frame 7 is further uniformly and fixedly provided with a plurality of positioning plates 23, the number of the positioning plates 23 can be three, the end surfaces of the positioning plates 23 facing the lower die 3 are abutted against the side walls of the lower die 3, and the upper end surfaces of the positioning plates 23 are located above the forging surface of the upper die 2; the positioning plate 23 is further provided with a cleaning hole 24, and the lower hole wall of the cleaning hole 24 is positioned below the forging surface of the lower die 3. Therefore, when the brake shoe bolt needs to be forged and pressed, a worker can firstly place the forging piece on the lower die 3, and then quickly adjust the forging piece to a proper forging and pressing position in a mode that the forging piece is simultaneously abutted against the positioning plates 23, so that the efficiency of the worker in forging and pressing the brake shoe bolt is improved, and the production efficiency of the brake shoe bolt is further improved; a plurality of clearance holes 24 make the air current that down tuber pipe 9 blew out can see through clearance hole 24 and clear up the forging and pressing face of lower mould 3, have reduced the possibility that forms the clearance dead angle between locating plate 23 and the last mould 2 to the clearance effect of tuber pipe 9 to lower mould 3 has further been promoted.

The implementation principle of the embodiment of the application is as follows: when the brake shoe bolt needs to be forged and pressed, a worker can firstly correspondingly erect a forging part on the forging surface of the lower die 3, then quickly adjust the forging part to a proper forging position in a mode of mutually abutting the forging part and the plurality of positioning plates 23, and then the hydraulic press 1 starts to drive the upper die 2 to press downwards to forge and press the forging part on the lower die 3; after forging and pressing, the staff can take off the forging and pressing piece, then start fan 11, blow the mode of air current through upper air pipe 8 and leeward 9 towards last mould 2 and lower mould 3 forging and pressing face, clear up the forging and pressing face of going up mould 2 and lower mould 3, reduced the sweeps adhesion and gone up the forging and pressing face of mould 2 and lower mould 3, lead to going up the uneven possibility of pressure distribution between mould 2 and the lower mould 3 to the forging and pressing precision of brake shoe bolt has been promoted.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a high accuracy hydraulic press for producing brake shoe bolt, contains and installs last mould (2) and lower mould (3) on hydraulic press (1), its characterized in that: one side of the upper die (2) is connected with an upper cleaning frame (5) through an upper connecting piece (4), one side of the lower die (3) is connected with a lower cleaning frame (7) through a lower connecting piece (6), an upper air pipe (8) is arranged on the upper cleaning frame (5), a lower air pipe (9) is arranged on the lower cleaning frame (7), the lower die (3) is positioned between the upper air pipe (8) and the lower air pipe (9), a plurality of air outlet holes (10) are respectively arranged on the upper air pipe (8) and the lower air pipe (9), the air outlet holes (10) positioned on the upper air pipe (8) are arranged towards the forging and pressing surface direction of the upper die (2), the air outlet holes (10) positioned on the lower air pipe (9) are arranged towards the forging and pressing surface direction of the lower die (3), one side of the hydraulic machine (1) is also provided with a fan (11), and the fan (12) is arranged on the fan (11, the air outlet pipe (12) is communicated with the upper air pipe (8) and the lower air pipe (9) through a communicating piece (13).

2. A high precision hydraulic machine for producing brake shoe bolts as claimed in claim 1, wherein: go up connecting piece (4) and contain fixed plate (14) of setting on last mould (2), wear to establish and threaded connection has a plurality of connecting bolt (15), a plurality of on last clearance frame (5) the tip of connecting bolt (15) is threaded connection respectively in fixed plate (14).

3. A high precision hydraulic machine for producing brake shoe bolts as claimed in claim 1, wherein: the lower connecting piece (6) comprises a plurality of fixing rods (16) arranged on the lower cleaning frame (7), a plurality of fixing grooves (17) matched with the fixing rods (16) are correspondingly formed in the side wall of the lower die (3), rubber pads (18) are further arranged on the outer edges of the fixing rods (16) respectively, the fixing rods (16) are correspondingly inserted into the fixing grooves (17) respectively, and the rubber pads (18) are tightly abutted to the groove walls of the fixing grooves (17).

4. A high precision hydraulic machine for the production of brake shoe bolts as claimed in claim 3, wherein: an annular guide groove (19) is formed in an opening of the fixing groove (17), and an annular chamfer is formed in the end portion, far away from the lower cleaning frame (7), of the fixing rod (16).

5. A high precision hydraulic machine for producing brake shoe bolts as claimed in claim 1, wherein: the communicating piece (13) comprises a three-way pipe (21) communicated with the air outlet pipe (12), and the upper air pipe (8) and the lower air pipe (9) are respectively communicated with the other two ends of the three-way pipe (21) through plastic hoses (22).

6. A high precision hydraulic machine for producing brake shoe bolts as claimed in claim 1, wherein: the lower cleaning frame (7) is further provided with a plurality of positioning plates (23), and the positioning plates (23) are abutted against the side face, close to the lower cleaning frame (7), of the lower die (3) and partially extend out of the lower die (3).

7. A high precision hydraulic machine for the production of brake shoe bolts as claimed in claim 6, wherein: cleaning holes (24) are also respectively formed in the positioning plates (23).

8. A high precision hydraulic machine for producing brake shoe bolts as claimed in claim 1, wherein: be equipped with down baffle (25) down on tuber pipe (9), a plurality of exhaust vents (10) on tuber pipe (9) are located down between baffle (25) and lower mould (3).