CN113020511A

CN113020511A - Multi-station forging method and device for cam swing arm blank for textile machinery

Info

Publication number: CN113020511A
Application number: CN202110278321.8A
Authority: CN
Inventors: 黎诚; 殷剑; 金康; 边翊; 丁伟; 孙奋丽
Original assignee: China Machinery Industry Technology Research Institute Of Precision Forming Anhui Co ltd
Current assignee: China Machinery Industry Technology Research Institute Of Precision Forming Anhui Co ltd
Priority date: 2021-03-15
Filing date: 2021-03-15
Publication date: 2021-06-25

Abstract

The invention discloses a multi-station forging method and a multi-station forging device for a cam swing arm blank for textile machinery, wherein a plurality of blanks are continuously transferred among a plurality of processing stations to complete the sequential continuous processing of the plurality of blanks among the plurality of stations; the main die frame is internally provided with a plurality of processing stations for upsetting a blank, flattening the blank, pre-forging the blank and finish forging the blank, wherein the upsetting step and the flattening step are completed by stamping twice at a single station; the upsetting flattening die, the preforging die, the finish forging die and the trimming die are placed into a pair of devices, so that four processes of upsetting flattening, preforging, forging and trimming which are required to be completed by four devices independently can be completed by only one device, a die holder groove is arranged in a main die set and used for synchronously installing the preforging die and the finish forging die, and a pressing block groove and a wedge block groove which are arranged on the lateral and longitudinal sides of the die holder groove can be matched to synchronously and quickly position the preforging die and the finish forging die.

Description

Multi-station forging method and device for cam swing arm blank for textile machinery

Technical Field

The invention relates to the technical field of cam swing arm forming of weaving machinery, in particular to a multi-station forging method and a multi-station forging device for a cam swing arm blank for textile machinery.

Background

The cam opening device is one of five moving parts of the loom, and is mainly suitable for weaving all basic tissues and simple fabrics by a high-speed jet loom, wherein the cam swing arm is an important part of the cam opening device, and the cam swing arm has short service life due to the problems of thick tissues, more defects, high labor intensity, unstable casting quality and the like.

At present, most of cam swing arms of textile machinery are manufactured in a casting forming mode, common casting processes comprise sand preparation, mold making, modeling, pouring, sand shakeout, polishing and the like, and due to the fact that equipment is multiple and complex, process takt is long in time consumption, and meanwhile, the utilization rate of materials is low, production efficiency is low, and the aims of energy conservation and emission reduction which are advocated vigorously by the state at the present stage are difficult to meet.

In addition, in the process of forging the cam swing arm in the prior art, the blank to the finished product of the cam swing arm need to be subjected to stamping forging by a plurality of dies, particularly, the precision and the strength of the finished product are directly influenced by the matching precision of a pre-forging die and a finish-forging die during stamping in the forming process, the pattern process of the pre-forging die and the finish-forging die is complicated, and the pre-forging die and the finish-forging die are difficult to accurately and quickly mount after being replaced, so that the processing efficiency can be reduced.

Disclosure of Invention

The invention aims to provide a multi-station forging method and a multi-station forging device for a cam swing arm blank for textile machinery, which aim to solve the problem that in the prior art, after a pre-forging die and a finish-forging die are replaced, the installation is difficult to accurately and quickly carry out.

In order to solve the technical problems, the invention specifically provides the following technical scheme:

a multi-station forging method of a cam swing arm blank for textile machinery is characterized in that a plurality of blanks are continuously transferred among a plurality of processing stations, and the sequential continuous processing of the blanks among the stations is completed; wherein the content of the first and second substances,

the plurality of processing stations are sequentially arranged on the main die frame along the transfer direction; a plurality of processing stations are arranged in the main die frame and used for providing blank upsetting, blank flattening, blank pre-forging and blank finish forging, wherein the upsetting process and the flattening process are completed by stamping twice through a single station;

the plurality of processing stations comprise at least two processing stations which are arranged in a main stamping area in the middle of the main die set according to the required stamping precision and at least two processing stations which are arranged in secondary stamping areas on two sides of the main die set.

As a preferred scheme of the invention, the plurality of processing stations comprise an upsetting flattening station, a pre-forging station, a finish forging station and a trimming station which are sequentially arranged in the main die frame along the transfer direction;

the pre-forging station and the finish forging station are arranged in a middle main stamping area of the main frame body, and the upsetting flattening station and the trimming station are located in secondary stamping areas on two sides of the main frame body.

As a preferred embodiment of the present invention, the processing of the plurality of blanks includes:

s100, before forming, putting an electric heating pipe into electric heating holes of a main die frame, a pre-forging station and a finish forging station, respectively heating the main die frame to a first heating temperature, and heating the pre-forging station and the finish forging station to a second heating temperature;

s200, putting the rodlike aluminum alloy blank heated to a preset temperature in a heating furnace into a cavity of a upsetting flattening die, and performing secondary stamping through a main die frame to sequentially perform upsetting and flattening processing on the blank to prepare an upsetting flattening blank approximately consistent with the size of the die cavity of the pre-forging station die;

s300, placing the upsetting flattening blank into preset positions in an upper die cavity and a lower die cavity of the pre-forging die, simultaneously placing the same rod-shaped blank into a cavity of the upsetting flattening die in the step S200, closing and extruding the upper pre-forging die and the lower pre-forging die to obtain the upsetting flattening blank in the cavity under the action of a press, enabling the blank to flow regularly according to the shape of the cavity of the pre-forging die to obtain the pre-forging blank matched with the cavity of the pre-forging die, and simultaneously stamping the blank by the upsetting pressing die to obtain the upsetting blank once;

s400, placing the pre-forged blank into a cavity of a finish forging die for finish forming to finally form a cam swing arm blank with flash, and meanwhile, placing the upsetting blank in the upsetting and flattening die in the S300 into a flattening area in the upsetting and flattening die and completing a flattening process of the blank to obtain a second upsetting and flattening blank;

s500, firstly putting the cam swing arm blank with the flash into upper and lower die cavities of a trimming die, then putting a second upsetting flattening blank prepared in S400 into the upper and lower die cavities of a pre-forging die, then putting the same rod-shaped blank in S200 into a die cavity with upsetting flattening, stamping the cam swing arm blank with the flash by the trimming die under the action of a press to prepare a finished product of the cam swing arm, simultaneously stamping the second upsetting flattening blank by the pre-forging die to prepare a pre-forging blank, simultaneously stamping the blank by the upsetting flattening die to prepare an upsetting blank, and repeating the operations in sequence to uninterruptedly complete four processes.

To solve the above technical problem, the present invention further provides the following apparatus applied to the above scheme:

a cam swing arm blank forging device for textile machinery comprises an upper die frame and a lower die frame which are identical in structure, wherein the upper die frame and the lower die frame are provided with die frame hoisting holes for connecting a press, the front side and the rear side of the upper die frame are provided with upper die positioning grooves for an external device to be fixedly installed with the press, the front side and the rear side of the lower die frame are provided with lower die positioning grooves for the external device to be fixedly installed with the press, a plurality of screw holes for installing bolts for fixing the external device are formed in the upper die positioning grooves and the lower die positioning grooves, and a blanking groove is formed in the right side of the lower die frame and is positioned under a finish forging die;

the middle main stamping areas of the upper die frame and the lower die frame are both provided with die holder grooves which are inwards sunken, and the die holder grooves are used for respectively and simultaneously installing upper dies of the pre-forging station and the finish forging station and lower dies of the pre-forging station and the finish forging station;

the side face, located at an upsetting and flattening station, of the die holder groove is provided with at least two pressing block grooves communicated with the interior of the die holder groove, the front end face of the die holder groove is provided with at least four wedge block grooves communicated with the interior of the die holder groove, wedge blocks are arranged in the wedge block grooves and used for being matched with the die holder groove to synchronously position the pre-forging station and the finish forging station, and pressing blocks are arranged in the pressing block grooves and used for being matched with the die holder groove to fix the pre-forging station and the finish forging station in a pressing mode.

As a preferred scheme of the invention, the pre-forging station comprises a pre-forging lower die holder, a pre-forging lower die, a pre-forging upper die holder and a pre-forging upper die, the bottom end of the pre-forging lower die is connected with the lower die holder in a positioning manner through the pre-forging lower die holder, the top end of the pre-forging upper die is connected with the upper die holder in a positioning manner through the pre-forging upper die holder, the pre-forging lower die holder and the pre-forging upper die holder have the same structure, and the pre-forging lower die has the same structure as the pre-forging upper die;

the pre-forging lower die is characterized in that a plurality of forging die positioning pin holes are formed in the pre-forging lower die base, pre-forging lower die positioning pin holes which are overlapped with the plurality of forging die positioning pin holes in the pre-forging lower die base are formed in the pre-forging lower die, the pre-forging lower die and the pre-forging lower die base are matched, positioned and installed through the plurality of pre-forging lower die positioning pin holes and the plurality of forging die positioning pin holes, the pre-forging upper die is provided with a plurality of pre-forging upper die positioning pin holes which are overlapped with the plurality of forging die positioning pin holes in the pre-forging upper die base, and the pre-forging upper die base are matched, positioned and installed through the plurality of pre-forging upper die positioning;

the front central axis and the rear central axis of the top end of the pre-forging lower die holder are provided with two pre-forging die assembly holes which respectively extend to the side faces of the pre-forging lower die holder, the top end of the pre-forging lower die holder is provided with at least four finish-forging die assembly grooves which are symmetrically arranged one by one relative to the transverse central axis and the longitudinal central axis of the pre-forging lower die holder, and the pre-forging lower die holder and the pre-forging lower die are fixedly installed through the matching of the two pre-forging die assembly holes and the at least four finish-forging;

the stamping die comprises a pre-forging lower die, a pre-forging lower die flash groove, pre-forging die guide grooves and pre-forging upper die flash grooves, wherein the pre-forging lower die is provided with a pre-forging lower die cavity, the pre-forging lower die flash grooves are distributed around the periphery of the pre-forging lower die cavity, the two ends of the pre-forging lower die are provided with pre-forging die guide grooves, the pre-forging upper die is provided with a pre-forging upper die cavity matched with the pre-forging lower die cavity for stamping, upsetting and flattening blanks, the pre-forging die flash grooves are distributed around the periphery of the pre-forging upper die cavity, and pre-forging die guide bosses matched with the pre-forging die guide grooves.

As a preferred scheme of the invention, the finish forging station comprises a finish forging lower die holder, a finish forging lower die, a finish forging upper die holder and a finish forging upper die, the bottom end of the finish forging lower die is connected with the lower die holder in a positioning manner through the finish forging lower die holder, the top end of the finish forging upper die is connected with the upper die holder in a positioning manner through the finish forging upper die holder, the structure of the finish forging lower die is the same as that of the finish forging upper die, and the structure of the finish forging lower die holder is the same as that of the finish forging upper die holder;

the finish forging lower die base is provided with a plurality of forging die positioning pin holes with the same structure as the upper structure of the pre-forging lower die base, the finish forging lower die is provided with finish forging lower die positioning pin holes coinciding with the plurality of forging die positioning pin holes on the finish forging lower die base, the finish forging lower die and the finish forging lower die base are matched and positioned and installed through the plurality of finish forging lower die positioning pin holes and the forging die positioning pin holes, the finish forging upper die is provided with a plurality of finish forging upper die positioning pin holes coinciding with the forging die positioning pin holes on the finish forging upper die base, and the finish forging upper die base are matched and positioned and installed through the plurality of finish forging upper die positioning pin holes and the forging die positioning pin holes;

two finish forging die assembly grooves which respectively extend to the side face of the finish forging lower die holder are formed in the front central axis and the rear central axis of the top end of the finish forging lower die holder, a plurality of finish forging die assembly grooves which are identical to the arrangement of the top end of the pre-forging lower die holder are formed in the top end of the finish forging lower die holder, and the finish forging lower die holder is fixedly installed in a matched mode through the two finish forging die assembly grooves and the finish forging die assembly grooves.

The end forging die comprises a final forging lower die cavity arranged on the final forging lower die, a final forging lower die flash groove distributed around the periphery of the final forging lower die cavity, end forging die guide grooves arranged at two ends of the final forging lower die, a final forging upper die cavity matched with the final forging lower die cavity for punching, upsetting and flattening blanks and a final forging upper die flash groove distributed around the periphery of the final forging upper die cavity, and final forging die guide bosses matched with the final forging die guide grooves on two sides of the final forging lower die for positioning in a matching mode are arranged on two sides of the final forging upper die.

As a preferred scheme of the present invention, at least four upper mold frame heating holes are formed in the upper mold frame, at least four lower mold heating holes are formed in the lower mold frame, and heat pipes are inserted into the upper mold frame heating holes and the lower mold frame heating holes to provide a first heating temperature;

the pre-forging lower die holder and the finish-forging lower die holder are provided with at least two forging heating holes, heat pipes are inserted into the pre-forging lower die holder and the finish-forging lower die holder through the forging heating holes to provide a second heating temperature, and the heat pipes used for the first heating temperature and the heat pipes used for the second heating temperature are synchronously controlled in temperature through an integrated heating device;

and the front side and the rear side of the pre-forging lower die holder and the front side and the rear side of the finish-forging lower die holder are provided with forging positioning grooves for matching with the upper die positioning grooves and the lower die positioning grooves to be externally connected with fixing devices together.

As a preferred scheme of the invention, the upper secondary stamping area on the upper die frame is used for positioning and installing an upper die of the upsetting and flattening station by being provided with two upper upsetting and flattening slide rails which are symmetrically distributed about the central axis of the front end of the upper secondary stamping area, and the lower secondary stamping area on the lower die frame is used for positioning and installing a lower die of the upsetting and flattening station by being provided with two lower upsetting and flattening slide rails which are symmetrically distributed about the central axis of the front end of the lower secondary stamping area;

the upper die frame and the lower die frame are provided with two trimming die slide rails which are symmetrically distributed about the central axis of the front end of the upper die frame and the lower die frame and are used for respectively positioning and installing the trimming station upper die and the trimming station lower die;

the left sides of the middle main stamping areas of the upper die frame and the lower die frame are used for positioning and installing the upsetting flattening station through being provided with a plurality of upsetting flattening die positioning pin holes, the right sides of the middle main stamping areas of the upper die frame and the lower die frame are used for positioning and installing the trimming station through being provided with a plurality of trimming die positioning pin holes, and the middle main stamping areas of the upper die frame and the lower die frame are used for positioning and installing the pre-forging station and the finish forging station through being provided with a plurality of forging die positioning holes.

As a preferred scheme of the invention, the upsetting flattening die comprises an upsetting flattening upper die and a upsetting flattening lower die, wherein the upsetting flattening upper die is mounted on the upper die frame through two upsetting flattening upper die slide rails, the upsetting flattening lower die is mounted on the lower die frame through two upsetting flattening lower die slide rails, and the upsetting flattening upper die and the upsetting flattening lower die are identical in structure;

the upsetting flattening upper die and the upsetting flattening lower die are provided with upsetting flattening die positioning holes arranged along four corners of the upsetting flattening upper die and the upsetting flattening lower die respectively, the upsetting flattening upper die is positioned and installed with the upper die frame through the four upsetting flattening die positioning holes, and the upsetting flattening lower die is positioned and installed with the lower die frame through the four upsetting flattening die positioning holes;

the upsetting flattening upper die and the upsetting flattening lower die are of stepped structures, upsetting cavities are formed in the stepped bottoms of the upsetting flattening upper die and the upsetting flattening lower die and used for blank upsetting positioning, and flattening die planes are arranged at the stepped tops of the upsetting flattening upper die and the upsetting flattening lower die and used for upsetting blank flattening.

As a preferred scheme of the invention, the trimming station comprises a trimming die lower die base plate, a trimming die lower die, a trimming die upper die, a trimming upper die, a cushion block, a trimming upper die base plate and a trimming upper die male die, the trimming upper die comprises the trimming upper die base plate, the cushion block, the trimming upper die male die and the trimming die upper die, and the trimming lower die comprises the trimming die lower die base plate and the trimming die lower die;

the lower die base plate of the trimming die is fixedly connected with the lower die frame through two trimming die slide rails, four corners of the lower die base plate of the trimming die are connected and positioned with the lower die frame through trimming die counter bores, and the lower die of the trimming die is positioned at the center of the top end of the lower die base plate of the trimming die;

the utility model discloses a die-cutting die, including side cut upper die backing plate, edge cut lower die backing plate, edge cut upper die backing plate, edge cut lower die, edge cut the outside sliding connection and the cooperation of edge cut terrace die, the edge cut lower die compresses tightly the forging.

Compared with the prior art, the invention has the following beneficial effects:

(1) the upsetting flattening die, the preforging die, the finish forging die and the trimming die are arranged in one device, so that the four processes of upsetting flattening, preforging, forging and trimming which are required to be independently completed by four devices can be completely completed by only one device, the integration level of the device is improved, the space occupied by the device is effectively saved,

in addition, the total die set can synchronously complete four processes with four dies by single stamping, thereby greatly improving the production efficiency, reducing the energy consumption of equipment and improving the economic benefit;

(2) according to the invention, the die holder groove is arranged in the total die carrier and used for synchronously installing the pre-forging die and the finish-forging die, and the pressing block groove and the wedge block groove which are arranged on the transverse and longitudinal sides of the die holder groove are matched to synchronously and quickly position the pre-forging die and the finish-forging die, so that the installation speed of the pre-forging die and the finish-forging die is increased, and the processing efficiency is improved;

(3) through before forging the stock, carry out the upsetting earlier with the stock and flatten for the stock can roughly accord with the die cavity of forging the mould before forging, consequently can jointly fill the die cavity fast with the stock when forging the mould, ensured the quality of making the forging, from this easier processing goes out the forging that accords with the mark.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

FIG. 1 is a schematic view of the overall structure of a forging apparatus according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of an upper mold frame according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a lower mold frame according to an embodiment of the present invention.

FIG. 4 is a schematic diagram of an upset-crushing die according to an embodiment of the present invention.

Fig. 5 is a schematic view of the overall structure of a forging die pad according to an embodiment of the present invention.

FIG. 6 is a schematic view of a wedge connection according to an embodiment of the present invention.

FIG. 7 is a schematic diagram of a connection of pressure blocks provided by an embodiment of the present invention.

Fig. 8 is a schematic structural view of the upper preforging die according to the embodiment of the present invention.

Fig. 9 is a schematic structural view of a pre-forging lower die according to an embodiment of the present invention.

Fig. 10 is a schematic structural view of a finish forging upper die according to an embodiment of the present invention.

Fig. 11 is a schematic structural view of a finish forging lower die according to an embodiment of the present invention.

Fig. 12 is a schematic view of the overall structure of the trimming die according to the embodiment of the present invention.

FIG. 13 provides an overall flow chart for the embodiment of the present invention.

Fig. 14 is a flow chart of blank processing according to an embodiment of the present invention.

The reference numerals in the drawings denote the following, respectively:

1-mounting a mould frame; 2-upsetting and flattening the upper die; 3-upsetting and flattening the lower die; 4-lower die carrier; 5-briquetting; 6-wedge block; 7-pre-forging the lower die holder; 8-pre-forging the lower die; 9-finish forging the lower die; 10-trimming die lower die backing plate; 11-trimming die lower die; 12-trimming die upper die; 13-trimming upper die; 14-a cushion block; 15-trimming the upper die base plate; 16-finish forging the lower die holder; 17-finish forging the upper die holder; 18-finish forging the upper die; 19-pre-forging the upper die holder; 20-pre-forging an upper die; 21-heating holes of the upper mold frame; 22-upsetting and flattening the upper die slide rail; 23-upsetting a positioning pin hole of a flattening die; 24-a briquette groove; 25-wedge groove; 26-trimming die slide rails; 27-trimming die positioning pin holes; 28-upper die positioning groove; 29-a die holder slot; 30-lower die heating holes; 31-upsetting and flattening the lower die slide rail; 32-lower die positioning holes; 33-a charging chute; 34-lower die positioning groove; 35-upsetting a cavity; 36-flattening die plane; 37-upsetting and flattening die positioning holes; 38-forging the heated hole; 39-forging a positioning groove; 40-finish forging die assembling grooves; 41-finish forging die assembly groove; 42-forging die locating pin holes; 43-a pre-forging die assembly hole; 44-blocker guide boss; 45-pre-forging an upper die positioning pin hole; 46-preforging the upper die cavity; 47-preforging the upper die flash groove; 48-a pre-forging die guide groove; 49-preforging the positioning pin hole of the lower die; 50-preforging the lower die flash groove; 51-pre-forging the lower die cavity; 52-finish forging the upper die positioning pin hole; 53-a flash groove of a finish forging upper die; 54-finish forging the upper die cavity; 55-finish forging die guide boss; 56-finish forging die guide groove; 57-finish forging lower die positioning pin holes; 58-trimming groove of the finish forging lower die; 59-finish forging the lower die cavity; 60-trimming lower die countersunk holes; 61-trimming upper die male die; 62-trimming upper die countersunk holes; 63-cushion block positioning holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 14, the invention provides a multi-station forging method of a cam swing arm blank for a textile machine, which continuously transfers a plurality of blanks among a plurality of processing stations to complete the sequential and continuous processing of the plurality of blanks among the plurality of processing stations; wherein the content of the first and second substances,

the plurality of processing stations are sequentially arranged on the main die frame along the transfer direction; a plurality of processing stations are arranged in the main die frame and used for providing blank upsetting, blank flattening, blank pre-forging and blank finish forging, wherein the upsetting process and the flattening process are completed by two times of stamping in a single station;

The plurality of processing stations comprise an upsetting flattening station, a pre-forging station, a finish forging station and a trimming station which are sequentially arranged in the main die frame along the transfer direction;

the pre-forging station and the finish forging station are arranged in a middle main stamping area of the main frame body, and the upsetting flattening station and the trimming station are located in secondary stamping areas on two sides of the main die frame.

The processing process of the multiple blanks comprises the following steps:

s400, placing the pre-forged blank into a cavity of a finish forging die for finish forming to finally form a cam swing arm blank with flash, and meanwhile, placing the upsetting blank in the upsetting flattening die in the S300 to finish the flattening process of the material to obtain a second upsetting flattened blank;

The upsetting flattening die, the preforging die, the finish forging die and the trimming die are arranged in one device, so that the four processes of upsetting flattening, preforging, forging and trimming which are required to be independently completed by four devices can be completely completed by only one device, the integration level of the device is improved, the space occupied by the device is effectively saved,

and the total die set can synchronously complete four processes by connecting four dies through single stamping, so that the production efficiency is greatly improved, the energy consumption of equipment is reduced, and the economic benefit is improved.

Compared with the traditional welding type processing method, the forging process provided by the invention is matched with the forging device, and the blank is upset and flattened before the blank is forged, so that the blank can approximately accord with a cavity of a forging die before forging, the cavity can be rapidly filled with the blank when the forging die is used for forging, the quality of a manufactured forging piece is guaranteed, and the forging piece which accords with the mark can be processed more easily.

As shown in fig. 1 to 8, the invention further provides a cam swing arm blank forging device for textile machinery applied to the technical scheme, wherein, the main die carrier comprises an upper die carrier 1 and a lower die carrier 4 with the same structure, the upper die carrier 1 and the lower die carrier 4 are both used for connecting a press through being provided with die carrier hoisting holes, the front side and the rear side of the upper die carrier 1 are used for being fixedly installed with the press through being provided with upper die positioning grooves 28 for an external device, the front side and the rear side of the lower die carrier 4 are used for being fixedly installed with the press through being provided with lower die positioning grooves 34 for the external device, and a plurality of screw holes are arranged in the upper die positioning groove 28 and the lower die positioning groove 34 and used for installing bolts for fixing an external device, a blanking groove 33 is arranged right below the finish forging die on the right side of the lower die frame 4, and forging positioning grooves 39 are arranged on the front side and the rear side of the pre-forging lower die base 7 and the front side and the rear side of the finish forging lower die base 16 and used for matching with the upper die positioning groove 28 and the lower die positioning groove 34 to jointly and externally connect a fixing device.

The middle main stamping areas of the upper die frame 1 and the lower die frame 4 are both provided with die holder grooves 29 which are sunken inwards, and the die holder grooves 29 are used for installing an upper die of a pre-forging station and an upper die of a finish-forging station and a lower die of the pre-forging station and the lower die of the finish-forging station respectively;

the side face, positioned at the upsetting flattening station, of the die holder groove 29 is provided with at least two pressing block grooves 24 communicated with the interior of the die holder groove 29, the front end face of the die holder groove 29 is provided with at least four wedge grooves 25 communicated with the interior of the die holder groove 29, wedges 6 are installed in the wedge grooves 25 and used for being matched with the die holder groove 29 to synchronously position a pre-forging station and a finish-forging station, and pressing blocks 5 are installed in the pressing block grooves 24 and used for being matched with the die holder groove 29 to press and fix the pre-forging station and the finish-forging station.

The pre-forging station comprises a pre-forging lower die holder 7, a pre-forging lower die 8, a pre-forging upper die holder 19 and a pre-forging upper die 20, the bottom end of the pre-forging lower die 8 is connected with the lower die frame 4 in a positioning mode through the pre-forging lower die holder 7, the top end of the pre-forging upper die 20 is connected with the upper die holder 1 in a positioning mode through the pre-forging upper die holder 19, the pre-forging lower die holder 7 is the same as the pre-forging upper die holder 19 in structure, and the structure of the pre-forging lower die 8 is the same as that of the;

the pre-forging lower die base 7 is provided with a plurality of forging die positioning pin holes 42, the pre-forging lower die 8 is provided with a pre-forging lower die positioning pin hole 49 which is superposed with the plurality of forging die positioning pin holes 42 on the pre-forging lower die base 7, the pre-forging lower die 8 and the pre-forging lower die base 7 are matched, positioned and installed through the plurality of pre-forging lower die positioning pin holes 49 and the forging die positioning pin holes 42, the pre-forging upper die 20 is provided with a plurality of pre-forging upper die positioning pin holes 45 which are superposed with the forging die positioning pin holes 42 on the pre-forging upper die base 19, and the pre-forging upper die 20 and the pre-forging upper die base 19 are matched, positioned and installed through the plurality of pre-forging upper die positioning;

two pre-forging die assembly holes 43 respectively extending to the side face of the pre-forging lower die holder 7 are formed in the front and rear central axes of the top end of the pre-forging lower die holder 7, at least four finish-forging die assembly grooves 41 which are symmetrically arranged one by one about the transverse and longitudinal central axes of the pre-forging lower die holder 7 are formed in the top end of the pre-forging lower die holder 7, and the pre-forging lower die holder 7 and the pre-forging lower die 8 are fixedly installed through the two pre-forging die assembly holes 43 and the at least four finish-forging die assembly grooves 41;

the pre-forging die comprises a pre-forging lower die cavity 51 arranged on the pre-forging lower die 8, pre-forging lower die flash grooves 50 distributed around the periphery of the pre-forging lower die cavity 51, pre-forging die guide grooves 48 arranged at two ends of the pre-forging lower die 8, a pre-forging upper die cavity 46 matched with the pre-forging lower die cavity 51 for punching, upsetting and flattening blanks and pre-forging upper die flash grooves 47 distributed around the periphery of the pre-forging upper die cavity 46 are arranged on the pre-forging upper die 20, and pre-forging die guide bosses 44 matched with the pre-forging die guide grooves 48 at two sides of the pre-forging lower die 8 for positioning in a matching mode are arranged at two sides of the pre-forging upper die.

The finish forging station comprises a finish forging lower die holder 16, a finish forging lower die 9, a finish forging upper die holder 17 and a finish forging upper die 18, the bottom end of the finish forging lower die 9 is connected with the lower die frame 4 in a positioning mode through the finish forging lower die holder 16, the top end of the finish forging upper die 18 is connected with the upper die holder 1 in a positioning mode through the finish forging upper die holder 17, the structure of the finish forging lower die 9 is the same as that of the finish forging upper die 18, and the structure of the finish forging lower die holder 16 is the same as that of the finish forging upper die holder 17;

the finish forging lower die holder 16 is provided with a plurality of forging die positioning pin holes 42 with the same structure as that of the pre-forging lower die holder 7, the finish forging lower die 9 is provided with finish forging lower die positioning pin holes 57 coinciding with the plurality of forging die positioning pin holes 42 on the finish forging lower die holder 16, the finish forging lower die 9 and the finish forging lower die holder 16 are matched, positioned and installed through the plurality of finish forging lower die positioning pin holes 57 and the forging die positioning pin holes 42, the finish forging upper die 18 is provided with a plurality of finish forging upper die positioning pin holes 52 coinciding with the forging die positioning pin holes 42 on the finish forging upper die holder 17, and the finish forging upper die 18 and the finish forging upper die holder 17 are matched, positioned and installed through the plurality of finish forging upper die positioning pin holes 52 and the forging die positioning pin holes 42;

two finish forging die assembly grooves 40 which respectively extend to the side faces of the finish forging lower die holder 16 are formed in the front and rear central axes of the top end of the finish forging lower die holder 16, a plurality of finish forging die assembly grooves 41 which are identical to the arrangement of the top end of the pre-forging lower die holder 7 are formed in the top end of the finish forging lower die holder 16, and the finish forging lower die holder 16 is fixedly installed in a matched mode through the two finish forging die assembly grooves 40 and the plurality of finish forging die assembly grooves 41.

A finish forging lower die cavity 59 arranged on the finish forging lower die 9, a finish forging lower die flash groove 58 distributed around the periphery of the finish forging lower die cavity 59, finish forging die guide grooves 56 arranged at two ends of the finish forging lower die 9, a finish forging upper die cavity 54 matched with the finish forging lower die cavity 59 for punching, upsetting and flattening blanks and a finish forging upper die flash groove 53 distributed around the periphery of the finish forging upper die cavity 54 are arranged on the finish forging upper die 18, and finish forging die guide bosses 55 matched with the finish forging die guide grooves 56 at two sides of the finish forging lower die 9 for positioning in a matching mode are arranged at two sides of the finish forging upper die 18.

The upper die frame 1 is provided with at least four upper die frame heating holes 21, the lower die frame 4 is provided with at least four lower die heating holes 30, the upper die frame 1 and the lower die frame 4 are inserted with heat pipes through the upper die frame heating holes 21 and the lower die heating holes 30 to provide first heating temperature, the pre-forging lower die base 7 and the finish-forging lower die base 16 are provided with at least two forging heating holes 38, the pre-forging lower die base 7 and the finish-forging lower die base 16 are inserted with heat pipes through the forging heating holes 38 to provide second heating temperature, and the heat pipes for the first heating temperature and the heat pipes for the second heating temperature are synchronously controlled by the integrated heating device.

The upper secondary stamping area on the upper die frame 1 is used for positioning and installing an upper die of an upsetting and flattening station through two upsetting and flattening upper die slide rails 22 which are symmetrically distributed about the central axis of the front end of the upper die frame, and the lower secondary stamping area on the lower die frame 4 is used for positioning and installing a lower die of the upsetting and flattening station through two upsetting and flattening lower die slide rails 31 which are symmetrically distributed about the central axis of the front end of the lower die frame;

the upper die frame 1 and the lower die frame 4 are provided with two trimming die slide rails 26 which are symmetrically distributed about the central axis of the front end of the upper die frame and the lower die frame and are used for respectively positioning and installing an upper die and a lower die on a trimming station;

the left sides of the middle main stamping areas of the upper die frame 1 and the lower die frame 4 are used for positioning and installing upsetting flattening stations through being provided with a plurality of upsetting flattening die positioning pin holes 23, the right sides of the middle main stamping areas of the upper die frame 1 and the lower die frame 4 are used for positioning and installing trimming stations through being provided with a plurality of trimming die positioning pin holes 27, and the middle main stamping areas of the lower die frame 4 of the upper die frame 1 are used for positioning and installing a pre-forging station and a finish forging station through being provided with a plurality of forging die positioning holes 32.

The upsetting flattening die comprises an upsetting flattening upper die 2 and an upsetting flattening lower die 3, wherein the upsetting flattening upper die 2 is mounted on an upper die frame 1 through two upsetting flattening upper die slide rails 22, the upsetting flattening lower die 3 is mounted on a lower die frame 4 through two upsetting flattening lower die slide rails 31, and the upsetting flattening upper die 2 and the upsetting flattening lower die 3 are identical in structure;

the upsetting flattening upper die 2 and the upsetting flattening lower die 3 are respectively provided with upsetting flattening die positioning holes 37 arranged along four corners of the upper die 2 and the upsetting flattening lower die 3, the upsetting flattening upper die 2 is positioned and installed with the upper die carrier 1 through the four upsetting flattening die positioning holes 37, and the upsetting flattening lower die 3 is positioned and installed with the lower die carrier 4 through the four upsetting flattening die positioning holes 37;

the upsetting flattening upper die 2 and the upsetting flattening lower die 3 are both of a step-shaped structure, the step bottom ends of the upsetting flattening upper die 2 and the upsetting flattening lower die 3 are provided with upsetting cavities 35 for blank upsetting positioning, and the step top ends of the upsetting flattening upper die 2 and the upsetting flattening lower die 3 are provided with flattening die planes 36 for blank upsetting flattening.

The trimming station comprises a trimming die lower die base plate 10, a trimming die lower die 11, a trimming die upper die 12, a trimming die upper die 13, a cushion block 14, a trimming die upper die base plate 15 and a trimming die upper die 61, wherein the trimming die upper die comprises the trimming die upper die base plate 15, the cushion block 14, the trimming die upper die 13, the trimming die upper die 61 and the trimming die upper die 12, and the trimming die lower die comprises the trimming die lower die base plate 10 and the trimming die lower die 11;

the lower trimming die base plate 10 is fixedly connected with the lower die frame 4 through two trimming die slide rails 26, four corners of the lower trimming die base plate 10 are connected and positioned with the lower die frame 4 through trimming die lower countersunk holes 60, and the lower trimming die 11 is positioned at the center of the top end of the lower trimming die base plate 10;

the trimming upper die cushion plate 15 is fixedly connected with the upper die frame 1 through two trimming die slide rails 26, the four corners of the trimming upper die cushion plate 15 are connected and positioned with the upper die frame 1 through the trimming upper die countersunk holes 62, the trimming upper die cushion plate 15 is fixedly connected with three cushion blocks 14 through the three cushion blocks 14, the trimming upper die cushion plate 15 is fixedly connected with the trimming upper die 13 through the three cushion blocks 14, the trimming upper die male die 61 used for being matched with the trimming forged piece of the trimming die lower die 11 is installed at the center of the lower end of the trimming upper die 13, and the trimming die upper die 12 is slidably connected with the trimming die lower die 11 along the outer side of the trimming upper die male die 61 and is pressed against the forged.

Before the stamping die is used, the master die frame is required to be installed on a press, the press is connected with the master die frame through hoisting holes in the upper die frame 1 and the lower die frame 4 and used for driving the upper die frame 1 to stamp and lift towards the lower die frame 4, and the upper die frame 1 and the lower die frame 4 are fixed through positioning grooves in the front and the back surfaces, so that the precision of the upper die frame 1 and the lower die frame 4 can be kept during stamping.

After the master die frame is installed, a pre-forging station and a finish-forging station of a forging process need to be installed in the master die frame, wherein the installation modes of an upper die and a lower die of the pre-forging station and an upper die and a lower die of the finish-forging station are the same, for example, when the pre-forging lower die 8 and the finish-forging lower die 9 are installed, the specific installation steps are as follows:

step 100, placing assembly blocks in finish forging die assembly grooves 41 of the pre-forging lower die holder 7 and the finish forging lower die holder 16, positioning and butting the pre-forging lower die 8 and the finish forging lower die 9 with the pre-forging lower die holder 7 and the finish forging lower die holder 16 through the plurality of assembly blocks respectively, and then clamping slide pins in the pre-forging die assembly holes 43 on two sides of the pre-forging lower die holder 7 and the finish forging die assembly grooves on two sides of the finish forging lower die holder 16, so that the pre-forging lower die 8 and the finish forging lower die 9 cannot be vertically separated from the pre-forging lower die holder 7 and the finish forging lower die holder 16 under the action of the slide pins.

Step 200, firstly, placing the finish forging lower die holder 16 provided with the finish forging lower die 9 into the die holder groove 29 on the lower die base 4 and abutting against one side not provided with the pressure block groove 24, and then placing the pre-forging lower die holder 7 provided with the pre-forging lower die 8 into the die holder groove 29 on the lower die base 4 and abutting against the side surface of the finish forging lower die holder 16.

Step 300, placing a plurality of wedges 6 into wedge grooves 25 in a die holder groove 29, continuously screwing the wedges 6 into the wedge grooves 25 by bolts, and continuously descending the wedges 6 along the wedge grooves 25, wherein a protruding structure arranged on the side surface of each wedge 6 is matched and extruded with a side surface inclined structure of the lower pre-forging die holder 7 and the lower finish-forging die holder 16, so that the lower pre-forging die holder 7 and the lower finish-forging die holder 16 are fully attached to the rear side of the die holder groove 29 under the pressing action of the rear pushing slopes of the die holders protruding from the side surfaces of the wedges 6, and the lower pre-forging die holder 7 and the lower finish-forging die holder 16 are rapidly positioned at the front and rear positions in the die holder groove 29.

Step 400, after the plurality of wedge blocks 6 are installed, clamping the two pressing blocks 5 into the pressing block groove 24 on the left side of the die holder groove 29, continuously screwing the pressing blocks 5 into the pressing block groove 24 by bolts, and continuously descending the pressing blocks 5 along the pressing block groove 24, so that the protruding structures arranged on the side surfaces of the pressing blocks 5 are matched and extruded with the inclined structures on the left side surfaces of the pre-forging lower die holder 7 and the final forging lower die holder 16, and the pre-forging lower die holder 7 and the final forging lower die holder 16 are fully attached to the right side of the die holder groove 29 under the pressing action of the backward-pushing slopes of the die holders protruding on the side surfaces of the pressing blocks 5, so as to quickly position the pre-forging lower die holder 7 and the final forging lower die holder 16 at the left and.

During the process of clamping the press blocks 5, the pre-forging lower die holder 7 and the final-forging lower die holder 16 are pushed to be completely attached to the right side of the die holder groove 29 away from the press block groove 24 until the two press blocks 5 are fixed in the press block groove 24 by using bolts, so that the pre-forging lower die holder 7 and the final-forging lower die holder 16 are positioned and installed at the left and right positions in the die holder groove 29.

Step 500, placing the forging die positioning holes 32 arranged on the back surface of the lower die base 4 into the pre-forging lower die base 7 and the finish forging lower die base 16 by using bolts, and screwing the forging die positioning holes into the pre-forging lower die base 7 and the finish forging lower die base 16 in sequence, so that the pre-forging lower die base 7 and the finish forging lower die base 16 are fixedly installed inside the die base groove 29, and a fixing device externally connected with the lower die positioning grooves 34 is fixed with the forging positioning grooves 39 on the front end surface and the rear end surface of the pre-forging lower die base 7 and the finish forging lower die base 16, so that the stability of the pre.

And then, sequentially positioning and installing the upper pre-forging die holder 19 and the upper final-forging die holder 17 in the die holder groove 29 of the upper die frame 1 according to the steps, wherein the upper die and the lower die of the pre-forging station are in butt joint with the upper die and the lower die of the final-forging station under the condition that the butt joint heights of the upper die frame 1 and the lower die frame 4 are identical.

Need install the both sides at total die carrier respectively with the upset flattening station and the side cut station after preforging station and the installation of finish forging station to the upset flattening station is the same with the mounting means of side cut station, roughly divide into block connection and location connection, for example the upset of upset flattening station is flattened and is gone up mould 2 and upper die carrier 1 and be connected, wherein:

the clamping connection is that firstly, a slide rail groove at the bottom end of the upper upsetting flattening die 2 is butted and clamped on two upper upsetting flattening die slide rails 22 at the left side of the upper die frame 1, so that the upper upsetting flattening die 2 slides left and right along the upper die frame 1 through the two upper upsetting flattening die slide rails 22, and at the moment, the upper upsetting flattening die 2 cannot vertically drop from the upper die frame 1;

the positioning connection is that when the upper die 2 for upsetting and flattening slides to a set installation position, the positioning pins are used to be clamped into the upsetting and flattening die positioning holes 37 at the four corners of the upper die 2 for upsetting and flattening, the positioning pins are clamped into the positioning holes which are formed in the upper die carrier 1 in advance after penetrating through the upsetting and flattening die positioning holes 37, and the positioning pins are used to clamp the upsetting and flattening die positioning holes 37 at the four corners of the upper die 2 for upsetting and flattening until the upper die 2 and the upper die carrier 1 are installed.

And the upsetting flattening lower die 3 is respectively connected with the two upsetting flattening lower die slide rails 31 and the lower die frame 4 in a clamping manner in the above manner, and is connected with the lower die frame 4 in a positioning manner through the upsetting flattening die positioning holes 37 at the four corners of the lower die frame.

Similarly, the trimming upper die backing plate 15 of the trimming station is respectively connected with the two trimming die slide rails 26 and the upper die frame 1 in a clamping manner in the above manner, and is connected with the upper die frame 1 in a positioning manner through trimming upper die countersunk holes 62 at four corners of the trimming upper die backing plate;

and the trimming lower die base plate 10 of the trimming station is respectively connected with the two trimming die slide rails 26 and the lower die frame 4 in a clamping manner in the above manner, and is connected with the lower die frame 4 in a positioning manner through trimming lower die countersunk holes 60 at four corners of the trimming lower die base plate.

When the installation is completed at the upsetting flattening station, the pre-forging station, the final forging station and the trimming station in the master die frame, the integrated heating device needs to be switched on, and the master die frame and the forging die frame are synchronously heated by a plurality of heat pipes inserted into the upper die frame heating hole 21, the lower die heating hole 30 and the forging heating hole 38.

And finally, operating according to the processing processes of the plurality of blanks, and synchronously processing four processes to obtain the cam swing arm forge piece.

The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.

Claims

1. The multi-station forging method of the cam swing arm blank for the textile machinery is characterized by comprising the following steps of: continuously transferring the plurality of blanks among the plurality of processing stations to finish the sequential and continuous processing of the plurality of blanks among the plurality of stations; wherein the content of the first and second substances,

2. The multi-station forging method of the cam swing arm blank for the textile machinery, as recited in claim 1, wherein: the plurality of processing stations comprise an upsetting flattening station, a pre-forging station, a finish forging station and an edge cutting station which are sequentially arranged in the main die frame along the transfer direction;

3. The multi-station forging method for the cam swing arm blank of the textile machine as claimed in claim 2, wherein the processing of the plurality of blanks comprises:

s200, putting the rodlike aluminum alloy blank heated to a preset temperature in a heating furnace into an upsetting and flattening cavity of an upsetting and flattening die, and performing upsetting and flattening processing on the blank in sequence through secondary stamping of a main die carrier to obtain an upsetting and flattening blank approximately consistent with the size of a die cavity of a pre-forging station;

s300, placing the upsetting flattening blank into preset positions in an upper die cavity and a lower die cavity of the pre-forging die, simultaneously placing the same rod-shaped blank into an upsetting flattening upsetting die cavity in the step S200, closing and extruding the upper pre-forging die and the lower pre-forging die to obtain the upsetting flattening blank in the die cavity under the action of a press, enabling the blank to flow regularly according to the shape of the die cavity of the pre-forging die to obtain the pre-forging blank matched with the die cavity of the pre-forging die, and simultaneously stamping the blank by the upsetting flattening die to obtain the upsetting blank once;

s400, placing the pre-forged blank into a cavity of a finish forging die for finish forming to finally form a cam swing arm blank with flash, and meanwhile, placing the upsetting blank in the upsetting and flattening die upsetting cavity of the S300 middle upsetting and flattening die into a flattening cavity of the upsetting and flattening die and completing a flattening process of materials to obtain a second upsetting and flattening blank;

4. A forging device of a cam swing arm blank for textile machinery, which is applied to the multi-station forging method of any one of claims 1 to 3, is characterized in that: the general die set comprises an upper die set (1) and a lower die set (4) which are identical in structure, die set hoisting holes are formed in the upper die set (1) and the lower die set (4) and used for being connected with a press, an upper die positioning groove (28) is formed in the front side and the rear side of the upper die set (1) and used for being fixedly installed with the press in an external device mode, a lower die positioning groove (34) is formed in the front side and the rear side of the lower die set (4) and used for being fixedly installed with the press in the external device mode, a plurality of screw holes are formed in the upper die positioning groove (28) and the lower die positioning groove (34) and used for installing bolts for fixing the external device, and a blanking groove (33) is formed in the right side of the lower die set;

the middle main stamping areas of the upper die frame (1) and the lower die frame (4) are both provided with die holder grooves (29) which are sunken inwards, and the die holder grooves (29) are used for respectively and simultaneously installing upper dies of the pre-forging station and the finish forging station and lower dies of the pre-forging station and the finish forging station;

the side face, located at an upsetting and flattening station, of the die holder groove (29) is provided with at least two pressing block grooves (24) communicated with the interior of the die holder groove (29), the front end face of the die holder groove (29) is provided with at least four wedge grooves (25) communicated with the interior of the die holder groove (29), wedges (6) are installed in the wedge grooves (25) and used for being matched with the die holder groove (29) to synchronously position the pre-forging station and the finish forging station, and pressing blocks (5) are installed in the pressing block grooves (24) and used for being matched with the die holder groove (29) to fix the pre-forging station and the finish forging station in a pressing mode.

5. The multi-station forging device for the cam swing arm blank of the textile machine as claimed in claim 4, wherein: the pre-forging station comprises a pre-forging lower die holder (7), a pre-forging lower die (8), a pre-forging upper die holder (19) and a pre-forging upper die (20), the bottom end of the pre-forging lower die (8) is connected with the lower die holder (4) in a positioning mode through the pre-forging lower die holder (7), the top end of the pre-forging upper die (20) is connected with the upper die holder (1) in a positioning mode through the pre-forging upper die holder (19), the pre-forging lower die holder (7) is identical to the pre-forging upper die holder (19) in structure, and the structure of the pre-forging lower die (8) is identical to that of the pre-forging upper die (20);

the pre-forging die is characterized in that a plurality of forging die positioning pin holes (42) are formed in the pre-forging lower die holder (7), pre-forging lower die positioning pin holes (49) which are overlapped with the plurality of forging die positioning pin holes (42) in the pre-forging lower die (8) are formed in the pre-forging lower die holder (7), the pre-forging lower die (8) and the pre-forging lower die holder (7) are matched, positioned and installed through the plurality of pre-forging lower die positioning pin holes (49) and the forging die positioning pin holes (42), the pre-forging upper die (20) is provided with a plurality of pre-forging upper die positioning pin holes (45) which are overlapped with the forging die positioning pin holes (42) in the pre-forging upper die holder (19), and the pre-forging upper die (20) and the pre-forging upper die holder (19) are matched, positioned and installed through the plurality of pre-forging upper die positioning pin holes (45) and the forging die positioning pin holes;

two pre-forging die assembly holes (43) which respectively extend to the side face of the pre-forging lower die holder (7) are formed in the front central axis and the rear central axis of the top end of the pre-forging lower die holder (7), at least four finish-forging die assembly grooves (41) which are symmetrically arranged one by one about the transverse central axis and the longitudinal central axis of the pre-forging lower die holder (7) are formed in the top end of the pre-forging lower die holder (7), and the pre-forging lower die holder (7) and the pre-forging lower die (8) are fixedly installed through the two pre-forging die assembly holes (43) and the at least four finish-forging die assembly grooves (;

the upsetting die is characterized in that a lower pre-forging die cavity (51) is formed in the lower pre-forging die (8), lower pre-forging die flash grooves (50) are distributed around the periphery of the lower pre-forging die cavity (51), pre-forging die guide grooves (48) are formed in two ends of the lower pre-forging die (8), an upper pre-forging die cavity (46) matched with the lower pre-forging die cavity (51) for punching, upsetting and flattening blanks and an upper pre-forging die flash groove (47) distributed around the periphery of the upper pre-forging die cavity (46) are formed in the upper pre-forging die (20), and pre-forging die guide bosses (44) matched with the two sides of the lower pre-forging die (8) and used for positioning the pre-forging die guide grooves (48) in a matching mode are arranged on two sides of the upper pre-forging die (20.

6. The multi-station forging device for the cam swing arm blank of the textile machine as claimed in claim 5, wherein: the finish forging station comprises a finish forging lower die holder (16), a finish forging lower die (9), a finish forging upper die holder (17) and a finish forging upper die (18), the bottom end of the finish forging lower die (9) is connected with the lower die holder (4) in a positioning mode through the finish forging lower die holder (16), the top end of the finish forging upper die (18) is connected with the upper die holder (1) in a positioning mode through the finish forging upper die holder (17), the structure of the finish forging lower die (9) is the same as that of the finish forging upper die (18), and the structure of the finish forging lower die holder (16) is the same as that of the finish forging upper die holder (17);

a plurality of forging die positioning pin holes (42) with the same structure as that of the pre-forging lower die holder (7) are arranged on the finish forging lower die holder (16), the finish forging lower die (9) is provided with finish forging lower die positioning pin holes (57) which are overlapped with the plurality of forging die positioning pin holes (42) on the finish forging lower die base (16), the finish forging lower die (9) and the finish forging lower die holder (16) are matched, positioned and installed through a plurality of finish forging lower die positioning pin holes (57) and forging die positioning pin holes (42), the finish forging upper die (18) is provided with a plurality of finish forging upper die positioning pin holes (52) which are overlapped with the forging die positioning pin holes (42) on the finish forging upper die base (17), the finish forging upper die (18) and the finish forging upper die base (17) are matched, positioned and installed through a plurality of finish forging upper die positioning pin holes (52) and forging die positioning pin holes (42);

two finish forging die assembling grooves (40) which respectively extend to the side faces of the finish forging lower die holder (16) are formed in the front and rear central axes of the top end of the finish forging lower die holder (16), a plurality of finish forging die assembling grooves (41) which are identical to the arrangement of the top end of the pre-forging lower die holder (7) are formed in the top end of the finish forging lower die holder (16), and the finish forging lower die holder (16) is fixedly installed in a matched mode through the two finish forging die assembling grooves (40) and the finish forging die assembling grooves (41).

The finish forging die comprises a finish forging lower die cavity (59) arranged on the finish forging lower die (9), and finish forging lower die flash grooves (58) distributed around the periphery of the finish forging lower die cavity (59), wherein finish forging die guide grooves (56) are arranged at two ends of the finish forging lower die (9), a finish forging upper die cavity (54) matched with the finish forging lower die cavity (59) for punching, upsetting and flattening blanks and a finish forging upper die flash groove (53) distributed around the periphery of the finish forging upper die cavity (54) are arranged on the finish forging upper die (18), and finish forging die guide bosses (55) matched with the finish forging die guide grooves (56) at two sides of the finish forging lower die (9) for positioning in a matching mode are arranged at two sides of the finish forging upper die (18).

7. The multi-station forging device for the cam swing arm blank of the textile machine as claimed in claim 6, wherein: the upper die frame (1) is provided with at least four upper die frame heating holes (21), the lower die frame (4) is provided with at least four lower die heating holes (30), and heat pipes are inserted into the upper die frame (1) and the lower die frame (4) through the upper die frame heating holes (21) and the lower die heating holes (30) to provide a first heating temperature;

the pre-forging lower die holder (7) and the finish-forging lower die holder (16) are respectively provided with at least two forging heating holes (38), the pre-forging lower die holder (7) and the finish-forging lower die holder (16) are inserted into heat pipes through the forging heating holes (38) to provide a second heating temperature, and the heat pipes for the first heating temperature and the heat pipes for the second heating temperature are synchronously controlled in temperature through an integrated heating device;

the front side and the rear side of the pre-forging lower die holder (7) and the front side and the rear side of the finish-forging lower die holder (16) are provided with forging positioning grooves (39) which are used for being matched with the upper die positioning grooves (28) and the lower die positioning grooves (34) to be externally connected with fixing devices together.

8. The multi-station forging device for the cam swing arm blank of the textile machine as claimed in claim 7, wherein: the upper left secondary stamping area of the upper die frame (1) is used for positioning and installing an upper die of the upsetting and flattening station through two upsetting and flattening upper die slide rails (22) which are symmetrically distributed about the central axis of the front end of the upper secondary stamping area, and the upper left secondary stamping area of the lower die frame (4) is used for positioning and installing a lower die of the upsetting and flattening station through two upsetting and flattening lower die slide rails (31) which are symmetrically distributed about the central axis of the front end of the lower secondary stamping area;

the upper die frame (1) and the lower die frame (4) are provided with two trimming die slide rails (26) which are symmetrically distributed about the central axis of the front end of the upper die frame and the lower die frame and are used for respectively positioning and installing the trimming station upper die and the trimming station lower die;

go up die carrier (1) with the middle main punching press district left side of lower die carrier (4) is used for the location installation through being equipped with a plurality of upsetting flattening die locating pin holes (23) the upsetting flattening station, and go up die carrier (1) with the middle main punching press district right side of lower die carrier (4) is used for the location installation through being equipped with a plurality of trimming die locating pin holes (27) the trimming station, go up die carrier (1) be used for the location installation through being equipped with a plurality of forging die locating holes (32) in the middle main punching press district on lower die carrier (4) the preforging station with the finish forging station.

9. The multi-station forging device for the cam swing arm blank of the textile machine as claimed in claim 4, wherein: the upsetting flattening die comprises an upsetting flattening upper die (2) and a upsetting flattening lower die (3), wherein the upsetting flattening upper die (2) is mounted on the upper die frame (1) through two upsetting flattening upper die slide rails (22), the upsetting flattening lower die (3) is mounted on the lower die frame (4) through two upsetting flattening lower die slide rails (31), and the upsetting flattening upper die (2) and the upsetting flattening lower die (3) are identical in structure;

the upsetting flattening upper die (2) and the upsetting flattening lower die (3) are respectively provided with upsetting flattening die positioning holes (37) arranged along four corners of the upsetting flattening upper die (2), the upsetting flattening upper die (2) is positioned and installed with the upper die frame (1) through the four upsetting flattening die positioning holes (37), and the upsetting flattening lower die (3) is positioned and installed with the lower die frame (4) through the four upsetting flattening die positioning holes (37);

the upsetting flattening die is characterized in that the upsetting flattening upper die (2) and the upsetting flattening lower die (3) are of a step-shaped structure, the upsetting flattening upper die (2) and the step bottom end of the upsetting flattening lower die (3) are provided with upsetting cavities (35) for blank upsetting positioning, and the upsetting flattening upper die (2) and the step top end of the upsetting flattening lower die (3) are provided with flattening die planes (36) for upsetting blank flattening.

10. The multi-station forging device for the cam swing arm blank of the textile machine as claimed in claim 4, wherein: the trimming station comprises a trimming die lower die base plate (10), a trimming die lower die (11), a trimming die upper die (12), a trimming upper die (13), a cushion block (14), a trimming upper die base plate (15) and a trimming upper die male die (61), the trimming upper die comprises the trimming upper die base plate (15), the cushion block (14), the trimming upper die (13), the trimming upper die male die (61) and the trimming die upper die (12), and the trimming lower die comprises the trimming die lower die base plate (10) and the trimming die lower die (11);

the lower trimming die base plate (10) is fixedly connected with the lower die frame (4) through two trimming die slide rails (26), four corners of the lower trimming die base plate (10) are connected and positioned with the lower die frame (4) through trimming die counter bores (60), and the lower trimming die (11) is located at the center of the top end of the lower trimming die base plate (10);

the trimming upper die base plate (15) is fixedly connected with the upper die frame (1) through two trimming die slide rails (26), and the four corners of the trimming upper die cushion plate (15) are connected and positioned with the upper die frame (1) through trimming upper die countersunk holes (62), the trimming upper die base plate (15) is fixedly connected with three cushion blocks (14) through three rows of cushion block positioning holes (63), the trimming upper die cushion plate (15) is fixedly connected with the trimming upper die (13) through three cushion blocks (14), the center of the lower end of the trimming upper die (13) is provided with a trimming upper die male die (61) used for matching with the trimming forge piece of the trimming die lower die (11), the trimming die upper die (12) is connected with the trimming die upper male die (61) in a sliding mode along the outer side of the trimming die upper male die and matched with the trimming die lower die (11) to compress the forge piece.