CN215657633U

CN215657633U - Forging press capable of automatically ejecting workpiece

Info

Publication number: CN215657633U
Application number: CN202121315388.6U
Authority: CN
Inventors: 侯建立; 罗存
Original assignee: Linxi Delida Bearing Co ltd
Current assignee: Linxi Delida Bearing Co ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2022-01-28
Anticipated expiration: 2031-06-11

Abstract

The utility model provides a forging press capable of automatically ejecting workpieces, which comprises: a frame; the workbench is arranged on the rack, and a first material ejecting hole is formed in the workbench; the pressure assembly is arranged on the frame; the die assembly comprises an upper die and a lower die, the upper die is mounted on the pressure assembly, the lower die is mounted on the workbench, the lower die and the upper die are arranged oppositely in the vertical direction, and the lower die is provided with a second material ejecting hole which is coaxial with the first material ejecting hole; the ejection component comprises an ejection rod, a transmission structure and a telescopic structure, wherein the ejection rod is arranged in the first ejection hole and the second ejection hole in a sliding mode, the transmission structure is connected with the ejection rod, and the telescopic structure is connected with the transmission structure and arranged on the side face of the rack. When the forging press lifting device works, the telescopic end of the telescopic structure drives the material ejecting rod to move up and down through the transmission structure, so that the material ejecting work of the forging press is completed, the telescopic structure is arranged on the side face of the frame and far away from the workbench, and forging and pressing impurities cannot fall onto the telescopic structure, so that the material ejecting work of the forging press is more reliable, and the service life is longer.

Description

Forging press capable of automatically ejecting workpiece

Technical Field

The utility model belongs to the technical field of forging and pressing equipment, and particularly relates to a forging press capable of automatically ejecting a workpiece.

Background

The forging process is that the blank generates obvious plastic deformation under the action of a press and a die, and is mainly used for processing metal parts, and the equipment used in the forging process is a forging press. The die used in forging and pressing can be generally divided into an upper die and a lower die, when the die works, a blank is placed on the lower die, the upper die is driven to be pressed down through a pressure component such as a hydraulic cylinder, an electric telescopic rod and the like, and the part is deformed under the combined action of the upper die and the lower die. After the forging, the pressure assembly drives the upper die to move upwards, the forged preformed blank is left on the lower die, and the preformed blank needs to be taken out manually or by adopting a material ejecting device and is continuously processed at a subsequent station.

The existing forging press material ejecting device is provided with an ejector rod and a telescopic structure below a workbench, the telescopic structure can be a hydraulic cylinder, an electric telescopic rod, a telescopic cylinder and the like, the telescopic end of the telescopic structure is directly connected with the ejector rod and is located on an axis along the vertical direction of the ejector rod, and the telescopic structure drives the ejector rod to move when acting so as to eject a workpiece. However, after long-term use, impurities such as metal oxides, dust, and graphite emulsion generated by forging are accumulated around the telescopic structure, and cause a clamping stagnation during the material ejection, which affects the normal material ejection of the forging press.

SUMMERY OF THE UTILITY MODEL

The utility model provides a forging press capable of automatically ejecting workpieces, and aims to solve the problem that after the forging press is used for a long time, impurities such as metal oxides, dust, graphite emulsion and the like generated by forging and pressing are accumulated around a telescopic structure, so that action clamping is caused during material ejection, and normal material ejection of the forging press is influenced.

The utility model provides a forging press capable of automatically ejecting workpieces, which comprises: a frame; the workbench is arranged on the rack, and a first material ejecting hole penetrating through the thickness of the workbench is formed in the workbench; the pressure assembly is arranged on the frame; the die assembly comprises an upper die and a lower die, the upper die is mounted on the pressure assembly, the lower die is mounted on the workbench, the lower die and the upper die are arranged oppositely in the vertical direction, and the lower die is provided with a second material ejecting hole which penetrates through the thickness of the lower die and is coaxially arranged with the first material ejecting hole; and the ejection assembly comprises an ejection rod which is arranged in the first ejection hole and the second ejection hole in a sliding manner, a transmission structure connected with the ejection rod, and a telescopic structure connected with the transmission structure and arranged on the side face of the rack.

In a possible implementation manner, the mounting end of the telescopic structure is hinged to the side surface of the rack, and the transmission structure includes: one end of the push rod is hinged with one end of the ejector rod, which is far away from the upper die; one end of the rocker is hinged with one end of the push rod, which is far away from the ejector rod, and the other end of the rocker is hinged with the telescopic end of the telescopic structure; and the rotating shaft is vertically connected to the position between the two ends of the rocker and connected to the workbench, so that the rocker can rotate relative to the rotating shaft at the position of the workbench at a fixed point.

In a possible implementation manner, the rocker is fixedly connected with the rotating shaft, a first hinge seat is arranged at the bottom of the workbench, and the rotating shaft is hinged to the first hinge seat; the side face of the rack is provided with a second hinged seat, and the mounting end of the telescopic structure is hinged to the second hinged seat.

In a possible implementation manner, a guide sleeve is arranged in the first material ejecting hole, and the material ejecting rod is in sliding fit with the guide sleeve.

In a possible implementation mode, the ejector beam is close to one end of the lower die is provided with an ejector head, the diameter of the ejector head is larger than that of the ejector beam, and the lower die is provided with a containing groove for containing the ejector head.

In a possible implementation manner, a dust cover is arranged around the circumferential profile of the ejector rod, and the dust cover at least partially covers the connecting part of the ejector rod and the transmission structure.

In a possible implementation, the telescoping structure housing is provided with a protective housing, which is mounted on the side of the machine frame.

In a possible implementation manner, a cooling water channel is arranged inside the upper die, and a water inlet joint and a water outlet joint are respectively arranged at two ends of the cooling water channel.

In one possible implementation, the cooling channel includes: the first cooling water channel transversely penetrates through the upper die, and the water inlet joint and the water outlet joint are respectively arranged at two ends of the first cooling water channel;

the second cooling water channel is crossed and communicated with the first cooling water channel and longitudinally extends to the end part of the upper die close to the lower die, and a water outlet is formed in one end, far away from the lower die, of the second cooling water channel; and the sealing plug is covered on the water outlet.

In a possible implementation manner, a partition plate connected with the plugging plug is arranged in the second cooling water channel, the partition plate divides the second cooling water channel into a first cooling cavity close to the water inlet connector and a second cooling cavity close to the water outlet connector, the partition plate is adjacent to the position of the lower die, and a plurality of communicating water outlets of the first cooling cavity and the second cooling cavity are formed in the position of the lower die.

The forging press capable of automatically ejecting the workpiece provided by the utility model at least has the following technical effects: when the forging press lifting device works, the telescopic end of the telescopic structure drives the material ejecting rod to move along the first material ejecting hole and the second material ejecting hole through the transmission structure, a workpiece is ejected out of the lower die, the material ejecting work of the forging press is completed, the telescopic structure is installed on the side face of the frame, the mounting is convenient, the later-period maintenance and adjustment are also convenient, the telescopic structure is far away from the workbench, impurities such as metal oxides, graphite emulsion and the like generated in the forging and pressing process cannot fall onto the telescopic structure, the material ejecting work of the forging press is more reliable, and the service life is longer.

Drawings

FIG. 1 is a perspective view of a forging press capable of automatically ejecting a workpiece according to one embodiment of the present invention;

FIG. 2 is a schematic diagram of a forging press capable of automatically ejecting a workpiece according to one embodiment of the present invention;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

FIG. 4 is a partial enlarged view of portion B of FIG. 2;

fig. 5 is an exploded view of the assembly of the upper die in one embodiment of the present invention.

Description of reference numerals:

1. forging press 100, frame capable of automatically ejecting workpieces

110. Protective cover 200, workbench 210 and guide sleeve

300. Pressure assembly 400, die assembly 410, and upper die

411. First cooling water channel 412, second cooling water channel 413, water inlet joint

414. Water outlet joint 415, plugging plug 416 and partition plate

417. Apopore 420, lower mould 500, liftout subassembly

510. Ejector rod 511, ejector head 512 and dust cover

520. Transmission structure 521, push rod 522 and rocker

523. Rotating shaft 524, first hinge base 525 and second hinge base

530. Telescopic structure

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It will be understood that when an element is referred to as being "secured to," "secured to," or "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on," "disposed on" another element, it can be directly on the other element or intervening elements may also be present. "plurality" means two or more.

"a number" means one or more than one.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Referring to fig. 1 to 5 together, a forging press 1 capable of automatically ejecting a workpiece according to an embodiment of the present invention will now be described.

Referring to fig. 1 and 2, an embodiment of the present invention provides a forging press 1 capable of automatically ejecting a workpiece, including: a frame 100; the workbench 200 is arranged on the rack 100, and a first material ejecting hole penetrating through the thickness of the workbench 200 is formed in the workbench; a pressure assembly 300 disposed on the frame 100; the die assembly 400 comprises an upper die 410 mounted on the pressure assembly 300 and a lower die 420 mounted on the workbench 200, the lower die 420 and the upper die 410 are arranged oppositely in the vertical direction, and the lower die 420 is provided with a second material ejecting hole which penetrates through the thickness of the lower die and is coaxially arranged with the first material ejecting hole; and the ejection assembly 500 comprises an ejection rod 510 slidably disposed in the first ejection hole and the second ejection hole, a transmission structure 520 connected to the ejection rod 510, and a telescopic structure 530 connected to the transmission structure 520 and disposed on a side of the rack 100.

The pressure assembly 300 in this embodiment may be a hydraulic cylinder, an electric telescopic rod, or other devices, and is configured to drive the upper mold 410 to be attached to the lower mold 420 and apply pressure during forging, so as to form a blank, specifically, a mold holder is installed at a working end of the pressure assembly 300, the upper mold 410 is detachably disposed on the mold holder, and the working end of the pressure assembly 300 drives the upper mold 410 to move through the mold holder.

Set up extending structure 530 in this embodiment in the side of frame 100, drive liftout pole 510 through drive structure and remove, and is specific, extending structure 530 can be one of pneumatic cylinder, electric telescopic handle, cylinder, and corresponding sets up hydraulic pump, electric power or air supply as the power supply according to the workshop condition, through the action of PLC program control extending structure 530, and extending structure 530's flexible end is connected with drive structure 520, makes liftout pole 510 accomplish liftout and return work.

The transmission structure 520 in this embodiment may adopt a link transmission mode, and may also adopt other transmission modes such as a rack and pinion transmission mode, specifically, when adopting a rack and pinion transmission mode, the telescopic end of the telescopic structure 530 is fixedly connected with a vertically arranged first rack, the bottom of the ejector rod 510 is fixedly connected with a vertically arranged second rack, a gear is rotatably arranged below the workbench 200, and the first rack and the second rack are arranged on two sides of the gear and engaged with the gear. When the telescopic end of the telescopic structure 530 drives the first rack to move downward, the first rack drives the gear to rotate so as to make the second rack move upward, and drive the ejector rod 510 to eject the workpiece, and correspondingly, when the telescopic end of the telescopic structure 530 drives the first rack to move upward, the ejector rod 510 returns to the original position.

Referring to fig. 1 and 2, in some possible embodiments, the mounting end of the telescopic structure 530 is hinged to the side of the rack 100, and the transmission structure 520 includes: one end of the push rod 521 is hinged with one end of the ejector rod 510 far away from the upper die 410; one end of the rocker 522 is hinged with one end of the push rod 521 far away from the ejector rod 510, and the other end of the rocker 522 is hinged with the output end of the telescopic structure 530; and a rotating shaft 523 vertically connected to a position between both ends of the rocking bar 522 and connected to the working table 200, so that the rocking bar 522 rotates at a fixed point of the working table 200 with respect to the rotating shaft 523.

The connection mode of the rocker 522, the workbench 200 and the rotating shaft 523 has the following conditions: (1) the rotating shaft 523 is fixedly arranged on the workbench 200, the rocker 522 is provided with a rotating hole, the rocker 522 is in rotating fit with the rotating shaft 523 through the rotating hole, and the telescopic structure 530 drives the rocker 522 to rotate when in operation; (2) the rotating shaft 523 is fixedly connected with the rocker 522, the rotating shaft 523 is in rotating fit with the workbench 200, the rocker 522 rotates relative to the workbench 200 through the rotating shaft 523, and the telescopic structure 530 drives the rocker 522 and the rotating shaft 523 to rotate together when working; (3) the rotating shaft 523 is in running fit with the workbench 200, the rocker 522 is in running fit with the rotating shaft 523, the telescopic structure 530 drives the rocker 522 and the rotating shaft 523 to rotate when working, and the rocker 522 and the workbench 200 can rotate at a fixed point relatively under the above three conditions.

This embodiment adopts rocker 522 and push rod 521 to realize the transmission between extending structure 530 and liftout pole 510, and when extending structure 530's flexible end extension, the one end that extending structure 530 was kept away from to rocker 522 risees, drives push rod 521 and liftout pole 510 and risees, makes the work piece by jack-up, and when extending structure 530's flexible end shortened, the one end that extending structure 530 was kept away from to rocker 522 reduced, drives push rod 521 and liftout pole 510 and reduces, and liftout pole 510 restores to the normal position. In order to ensure the smooth operation of the liftout assembly 500, correspondingly, the mounting end of the telescopic structure 530 is hinged to the frame 100.

In this embodiment, the ejector assembly 500 performs the ejector action and resets, the rocker 522 and the workbench 200 rotate relatively, the push rod 521 moves below the workbench 200 along with the rocker 522, the movement locus of the push rod is in a reciprocating deflection shape, and part of accumulated impurities can be shaken off in the movement process, so that the situation that the coordination is blocked due to excessive accumulation of the impurities is avoided.

It can be understood that the rotating shaft 523 can ensure the stability of the rocker 522 during rotation, and thus the stability and reliability during ejection. Of course, in other embodiments, the transmission structure 520 may not include the rotating shaft 523, at this time, the mounting end of the telescopic structure 530 is fixed to the side of the frame 110, and when the telescopic end of the telescopic structure 530 vertically reciprocates, the rocker 522 can drive the push rod 521 to rotate, so as to drive the ejector rod 510 to jack up or reset.

Referring to fig. 2, in some possible embodiments, the rocker 522 is fixedly connected to the rotating shaft 523, the bottom of the working platform 200 is provided with a first hinge seat 524, and the rotating shaft 523 is hinged to the first hinge seat 524; the side of the rack 100 is provided with a second hinge seat 525, the mounting end of the telescopic structure 530 is hinged to the second hinge seat 525, and in this embodiment, the first hinge seat 524 and the second hinge seat 525 are both fixedly mounted on the rack 100 through bolts.

Referring to fig. 2, in some possible embodiments, a guide sleeve 210 is disposed in the first ejection hole, the ejection rod 510 is slidably fitted to the guide sleeve 210, the guide sleeve 210 is installed in the first ejection hole in an interference fit manner, and by disposing the guide sleeve 210, the ejection rod 510 is more accurately positioned when the ejection rod is lifted, so as to prevent the workpiece from being ejected and falling off. Specifically, the guide sleeve 210 in this embodiment is a copper sleeve, which has good wear resistance and heat dissipation performance, long service life, and avoids frequent replacement.

Referring to fig. 2, in some possible embodiments, an end of the ejector pin 510 close to the lower mold 420 is provided with an ejector head 511, a diameter of the ejector head 511 is larger than that of the ejector pin 510, and the lower mold 420 is provided with a receiving groove for receiving the ejector head 511. In order to make the workpiece more stable when being jacked up, in the embodiment, the material jacking head 511 is arranged at the head part of the material jacking rod 510, the material jacking head 511 is in a cylindrical shape, the diameter of the material jacking head 511 is larger than that of the material jacking rod 510, the contact area between the material jacking rod 510 and the workpiece is increased, and the support is more stable. In order to avoid the interference between the ejector head 511 and the lower die 420, a receiving groove is formed in the lower die 420 for receiving the ejector head 511, the ejector head 511 is located in the receiving groove during the forging of the workpiece, the bottom of the ejector head 511 is in contact with the bottom of the receiving groove, and after the forging is finished, the ejector head 511 jacks up the workpiece under the pushing of the ejector rod 510.

Referring to fig. 2 and 3, in some possible embodiments, the circumferential profile of the ejector pin 510 is surrounded by a dust cover 512, and the dust cover 512 at least partially covers the connection portion of the ejector pin 510 and the transmission structure 520. In this embodiment, the dust cover 512 can prevent impurities such as metal oxide, dust, and graphite emulsion from flowing to the hinge joint of the ejector pin 510 and the push rod 521 along the first ejection hole and the second ejection hole, and causing the fitting of the installation part to be blocked.

Specifically, the top of dust cover 512 is the toper, conveniently falls the impurity landing on dust cover 512, for the dustproof effect of further reinforcing dust cover 512, is connected with annular dust board in the below at dust cover 512 toper top, and impurity falls in the toper top, and final landing falls to dust board and falls from dust board, makes the installation position keep clean.

Because the dust cover 512 is arranged on the ejector rod 510, the dust cover 512 moves upwards along with the ejector rod 510 during ejection, and the dust cover 512 is arranged at the lower part of the ejector rod 510 and is close to the position where the ejector rod 510 is hinged with the push rod 521, so that the dust cover 512 can be prevented from interfering with the workbench 200 when ascending along with the ejector rod 510 as much as possible. Furthermore, in order to avoid the dust cover 512 interfering with the bottom of the worktable 200, an avoiding groove may be provided at the bottom of the worktable 200.

Referring to fig. 2 and 3, in some possible embodiments, the telescopic structure 530 is covered by a protective cover 110, and the protective cover 110 is installed on the side of the rack 100. Through setting up protective housing 110, can further avoid forging the impurity that the in-process produced to fall on extending structure 530, protective housing 110 direct mount is easy dismouting easy to detach in frame 100 side.

In the forging process, after the forging die works for a long time, the temperature of the workpiece can be transmitted to the die assembly 400, the workpiece is easily adhered to the workpiece due to overhigh temperature, when the temperature of the upper die 410 is overhigh, the workpiece is adhered to the upper die 410, the workpiece rises along with the upper die 410, the workpiece needs to be manually taken down at the moment, the production efficiency is greatly reduced, and meanwhile the quality of the workpiece is also influenced.

To this end, referring to fig. 4 and 5, in some possible embodiments, a cooling water channel is disposed inside the upper mold 410, and a water inlet joint 413 and a water outlet joint 414 are disposed at two ends of the cooling water channel, respectively. This embodiment adopts the cooling water to give the cooling of last mould 410, water supply connector 413 and water connectors 414 respectively with external inlet tube and play water piping connection, at forging press during operation, the rivers in the cooling water course can continuously take away the heat of last mould 410, avoid last mould 410 and work piece to take place the adhesion, the cooling water course both ends are provided with the internal thread, water supply connector 413 and water connectors 414 screw-thread fit install at the cooling water course both ends, in order to guarantee the leakproofness, can also twine the thread sealing area or scribble high temperature resistant sealed glue on water supply connector 413 and the water connectors 414.

Referring to fig. 4 and 5, in some possible embodiments, the cooling water channel includes: a first cooling water channel 411 transversely penetrating the upper mold 410, wherein a water inlet joint 413 and a water outlet joint 414 are respectively arranged at two ends of the first cooling water channel 411; a second cooling water channel 412, which is crossed and communicated with the first cooling water channel 411, and extends to the end of the upper die 410 close to the lower die 420 along the longitudinal direction, and a water outlet is formed at one end of the second cooling water channel 412 far away from the lower die 420; and a plug 415 covering the water outlet.

During forging and pressing, the temperature of the part, directly contacted with a workpiece, of the upper die 410 is the highest, and the upper die 410 can move downwards during working and is matched with the lower die 420, so that in order to avoid interference between a water pipe and the lower die 420 after the upper die 410 moves downwards, the first cooling water channel 411 can only be arranged at one end far away from the workpiece and the lower die 420, in the embodiment, through arranging the second cooling water channel 412 communicated with the first cooling water channel 411, cooling water enters the first cooling water channel 411 from the water inlet joint 413 on the first cooling water channel 411, flows through the second cooling water channel 412 and finally flows out from the water outlet joint 414 on the first cooling water channel 411, so that heat at the bottom of the lower die 420 can be taken away along with water flow, and the cooling effect is improved. The first cooling water channel 411 and the second cooling water channel 412 are drilled, and after the second cooling water channel 412 is machined, the outlet of the hole needs to be sealed by a sealing plug 415, so that cooling water is prevented from flowing out.

Referring to fig. 4 and 5, in some possible embodiments, a partition plate 416 connected to the blocking plug 415 is disposed in the second cooling water channel 412, the partition plate 416 partitions the second cooling water channel 412 into a first cooling cavity near the water inlet joint 413 and a second cooling cavity near the water outlet joint 414, and a plurality of water outlet holes 417 communicating the first cooling cavity and the second cooling cavity are formed in a position of the partition plate 416 near the lower mold 420.

In this embodiment, the partition plate 416 is arranged to partition the water inlet and the water outlet of the first cooling water channel 411, so that the forced water flow flows through the second cooling water channel 412 along the partition plate 416, and the cooling water flows in from the water inlet joint 413, passes through the first cooling cavity, the water outlet 417 and the second cooling cavity, and flows out from the water outlet joint 414. The side wall of the partition plate 416 close to the bottom is provided with a plurality of water outlet holes 417, cooling water flows to the other side through the water outlet holes 417, heat at the bottom of the upper die 410 is taken away, and the cooling effect at the bottom of the upper die 410 is improved.

It is to be understood that, in the foregoing embodiments, various parts may be freely combined or deleted to form different combination embodiments, and details of each combination embodiment are not described herein again, and after this description, it can be considered that each combination embodiment has been described in the present specification, and can support different combination embodiments.

The above-mentioned embodiments can be freely combined or deleted to construct different embodiments, which are only preferred embodiments of the present invention and are not intended to limit the present invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Forging press that can automatic ejection work piece, its characterized in that includes:

a frame;

the workbench is arranged on the rack, and a first material ejecting hole penetrating through the thickness of the workbench is formed in the workbench;

the pressure assembly is arranged on the frame;

the die assembly comprises an upper die and a lower die, the upper die is mounted on the pressure assembly, the lower die is mounted on the workbench, the lower die and the upper die are arranged oppositely in the vertical direction, and the lower die is provided with a second material ejecting hole which penetrates through the thickness of the lower die and is coaxially arranged with the first material ejecting hole; and

the ejection component comprises an ejection rod, a transmission structure and an extension structure, wherein the ejection rod is arranged in the first ejection hole and the second ejection hole in a sliding mode, the transmission structure is connected with the ejection rod, and the extension structure is connected with the transmission structure and is arranged on the side face of the rack.

2. The forging press capable of automatically ejecting workpieces as recited in claim 1, wherein a mounting end of the telescopic structure is hinged to the side of the frame, and the transmission structure comprises:

one end of the push rod is hinged with one end of the ejector rod, which is far away from the upper die;

one end of the rocker is hinged with one end of the push rod, which is far away from the ejector rod, and the other end of the rocker is hinged with the telescopic end of the telescopic structure; and

and the rotating shaft is vertically connected to the position between the two ends of the rocker and connected to the workbench, so that the rocker can rotate relative to the rotating shaft at the position of the workbench at a fixed point.

3. The forging press capable of automatically ejecting workpieces as recited in claim 2, wherein the rocker is fixedly connected with the rotating shaft, a first hinge seat is arranged at the bottom of the workbench, and the rotating shaft is hinged to the first hinge seat; the side face of the rack is provided with a second hinged seat, and the mounting end of the telescopic structure is hinged to the second hinged seat.

4. The forging press capable of automatically ejecting workpieces as recited in claim 1, wherein a guide sleeve is disposed in the first ejector hole, and the ejector rod is slidably fitted with the guide sleeve.

5. The forging press capable of automatically ejecting workpieces as recited in claim 1, wherein an ejector head is arranged at one end of the ejector rod close to the lower die, the diameter of the ejector head is larger than that of the ejector rod, and the lower die is provided with a receiving groove for receiving the ejector head.

6. The forging press capable of automatically ejecting workpieces as recited in claim 1, wherein the ejector pin is circumferentially contoured with a dust shield at least partially covering a connection portion of the ejector pin and the transmission structure.

7. The forging press capable of automatically ejecting workpieces as recited in claim 1, wherein said telescoping structural enclosure is provided with a protective shroud mounted on said frame side.

8. The forging press capable of automatically ejecting workpieces as recited in claim 1, wherein a cooling water channel is provided inside the upper die, and a water inlet joint and a water outlet joint are respectively provided at both ends of the cooling water channel.

9. The forging press capable of automatically ejecting workpieces as recited in claim 8, wherein said cooling water channel comprises:

the first cooling water channel transversely penetrates through the upper die, and the water inlet joint and the water outlet joint are respectively arranged at two ends of the first cooling water channel;

the second cooling water channel is crossed and communicated with the first cooling water channel and longitudinally extends to the end part of the upper die close to the lower die, and a water outlet is formed in one end, far away from the lower die, of the second cooling water channel; and

and the sealing plug is covered on the water outlet.

10. The forging press capable of automatically ejecting workpieces as recited in claim 9, wherein a partition plate connected to the plugging plug is disposed in the second cooling water channel, the partition plate divides the second cooling water channel into a first cooling cavity close to the water inlet joint and a second cooling cavity close to the water outlet joint, and a plurality of water outlet holes communicating the first cooling cavity with the second cooling cavity are formed in a position of the partition plate adjacent to the lower die.