CN121491225B

CN121491225B - Positioning stamping forming device for hot forging

Info

Publication number: CN121491225B
Application number: CN202610040824.4A
Authority: CN
Inventors: 陈世英; 陈世农; 廖和平
Original assignee: Fujian Qingman Forging Technology Co ltd
Current assignee: Fujian Qingman Forging Technology Co ltd
Priority date: 2026-01-13
Filing date: 2026-01-13
Publication date: 2026-04-03
Anticipated expiration: 2046-01-13
Also published as: CN121491225A

Abstract

The invention relates to the technical field of metal material processing and discloses a positioning stamping forming device for a hot forging, which comprises a machine body, wherein a supporting table is fixedly arranged on the inner side of the machine body, a mounting seat is detachably connected to the top of the supporting table, a lower die is detachably connected to the top of the mounting seat, a hydraulic cylinder is arranged on the inner side of the machine body, an upper die matched with the lower die is fixedly connected to a driving end of the hydraulic cylinder, a mounting rod is fixedly connected to the rear side of the upper die, and a driving rack I is fixedly connected to the inner side of the mounting rod. Through add the locating component in advance that comprises parts such as head rod, locating wheel, movable seat at the bed die top, cooperate the upper die to move down in-process through the linkage design that gear drive mechanism synchronous drive grip slipper is close to each other, realized hot forging prepositioning and the synchronous fixed integrated processing of compound die, need not to dispose independent positioning fixture and actuating element additionally.

Description

Positioning stamping forming device for hot forging

Technical Field

The invention relates to the technical field of metal material processing, in particular to a positioning stamping forming device for a hot forging.

Background

The hot forging processing is one of important processes in the field of metal material processing, and the hot forging such as a metal blank, a metal plate and the like is subjected to plastic deformation by applying pressure to obtain a workpiece meeting the requirements of a preset shape and a preset size, so that the hot forging is widely applied to a plurality of industries such as machine manufacturing, automobile part production, aerospace and the like. In the stamping forming process of hot forging, positioning accuracy, processing efficiency, die maintenance and operation safety are core factors influencing processing quality and production benefits, so that the positioning stamping forming device of the hot forging becomes key equipment in the field.

In the prior art, a positioning and stamping forming device for a hot forging generally comprises a machine body, an upper die, a lower die, a driving mechanism, a positioning component and other core components. The die cleaning and cooling mechanism is used for processing scraps generated by stamping and controlling the temperature of the die so as to prolong the service life of the die and ensure the processing continuity.

In the aspect of positioning technology, the positioning mode of the traditional device is mainly divided into two types, namely, an independent positioning clamp (such as a pneumatic clamp and a hydraulic clamp) is adopted for positioning and fixing the hot forging piece, a driving element (such as a hydraulic cylinder and an air pump) and a control module are additionally arranged on the clamp, the overall structural complexity of the device is increased, the manufacturing cost and the operation energy consumption of equipment are improved, a positioning process is independently carried out before stamping, a loosening process is carried out after stamping, the processing period of a single workpiece is prolonged, the production efficiency is reduced, and the other type is dependent on manual auxiliary positioning, and the position of the hot forging piece on a die is manually adjusted by an operator. Meanwhile, although some devices attempt to integrate positioning functions, there are many problems that positioning and mold closing actions are not synchronous, and an additional linkage control structure is still needed, so that device design and processing flow cannot be simplified fundamentally. For this purpose, a positioning press forming device for hot forgings is proposed by those skilled in the art to solve the above-mentioned problems.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a positioning stamping forming device for a hot forging, which solves the problems in the background art.

The positioning stamping forming device for the hot forging comprises a machine body, wherein a supporting table is fixedly installed on the inner side of the machine body, a mounting seat is detachably connected to the top of the supporting table, a lower die is detachably connected to the top of the mounting seat, a hydraulic cylinder is installed on the inner side of the machine body, an upper die matched with the lower die is fixedly connected to the driving end of the hydraulic cylinder, a mounting rod is fixedly connected to the rear side of the upper die, a driving rack I is fixedly connected to the inner side of the mounting rod, a connecting shaft is movably connected to the middle part of the rear side of the mounting seat through a bearing, one end of the connecting shaft, which is close to the driving rack I, is fixedly sleeved with a driving gear I and a driving gear II in sequence along the axial direction, a limiting seat is fixedly connected to the rear side of the mounting seat, two driving racks II are both horizontally and slidably connected with a clamping seat through the connecting seat, a workpiece top of the lower die is provided with a first driving rack for positioning component in advance, a first driving rack II is horizontally and synchronously moved with a second driving rack II, and a second driving rack II is horizontally and synchronously moved to form a first driving rack and a second driving rack, and a second driving rack is synchronously moved to a first driving rack and a second driving rack is synchronously moved to a second driving component.

Preferably, the locating component is including seting up in a plurality of spouts of bed die inboard, every the inside of spout all has the removal seat through two elastic connection of reset spring, the top fixedly connected with butt pole of removal seat, the top of butt pole extends to the upper surface of bed die, the bar groove has been seted up to the surface of removal seat, the inner wall in bar groove has the adapter rod through pivot swing joint, the one end that the seat was removed in the adapter rod was kept away from is connected with the locating wheel through the connecting strip, when the work piece place in the bed die top time, work piece gravity drive butt pole and removal seat are along spout downwardly moving, drive adapter rod one end and follow bar inslot wall and slide, and then promote the locating wheel to the work piece side and draw close and with work piece outer wall butt, realize the preliminary location to the work piece.

Preferably, the gear teeth of the second driving gear are in meshed connection with the gear teeth of the first driving rack, and the gear teeth of the first driving gear are simultaneously in meshed connection with the gear teeth of the second driving rack.

The inner top of the machine body is fixedly connected with two symmetrically arranged fixed cylinders, each fixed cylinder is internally and slidably connected with a rubber piston in a sealing mode, the bottom of each rubber piston is fixedly connected with a movable rod, one end of each movable rod, which is far away from the rubber piston, is fixedly connected with the top of the upper die, the outer surface of each fixed cylinder is respectively communicated with an air inlet pipe and an air outlet pipe, the air outlet end of one air outlet pipe faces the forming surface of the upper die, the air outlet end of the other air outlet pipe faces the forming surface of the lower die, an atomization nozzle is arranged at the end of each air outlet pipe, when the upper die moves up and down, the movable rods and the rubber pistons are driven to slide along the inner parts of the fixed cylinders, air pressure in the fixed cylinders is changed, and after air is sucked through the air inlet pipes, fine chips generated in the punching process are ejected to the forming surface of the die through the air outlet pipes and the atomization nozzle.

Preferably, the fixed cylinder and the air inlet pipe are both provided with one-way valves, the one-way valve on the air inlet pipe only allows air to enter the fixed cylinder from the outside, and the one-way valve on the air injection pipe only allows air to be sprayed out from the fixed cylinder.

Preferably, the mounting groove has been seted up to the inside of mount pad, the fixed cover in middle part of connecting axle is equipped with the rolling disc, the periphery eccentric position of rolling disc is rotated through the pivot and is connected with two symmetrical arrangement's articulated pole, every the one end that the rolling disc was kept away from to the articulated pole all articulates there is the movable rod, the inboard of mount pad is followed vertical direction sliding connection and is had two ejector pins around lower mould circumference evenly distributed, the top of ejector pin runs through to the shaping face of lower mould, drive the synchronous rotation of rolling disc when the connecting axle rotates, drive articulated pole swing and promote the movable rod and reciprocate, and then drive ejector pin upwards pushes away, realizes the automatic ejection of work piece after the stamping forming.

Preferably, the outside cover of ejector pin is equipped with reset spring one, reset spring one's top with the inner wall butt of mounting groove, reset spring one's bottom with the middle part boss butt of ejector pin, the bottom of ejector pin with the top of movable rod all sets up to the cambered surface structure of mutual adaptation.

Preferably, the top one side fixedly connected with liquid reserve tank of organism, the pump body is installed at the top of liquid reserve tank, the input fixedly connected with connecting pipe one of pump body, the output fixedly connected with transportation pipe of pump body, two connecting pipes two are connected with through the three-way valve to the one end of transportation pipe, one end that the connecting pipe one kept away from the pump body extends to the inside of liquid reserve tank, the internally mounted of connecting pipe two has the check valve.

Preferably, the inner side of the machine body is fixedly provided with a carrying mechanical arm, the outer side of the machine body is fixedly connected with a storage box, and the position of the storage box is matched with the operation range of the carrying mechanical arm and is used for storing the punched workpiece.

Preferably, the inside fixedly connected with dead lever of organism, the tip of connecting axle runs through the outside of mount pad and fixedly connected with swinging arms, trigger switch is all installed to the front end of mount pad with the bottom of dead lever, when trigger switch on the mount pad is triggered, and the control transport arm places the work piece after the punching press is accomplished in the inside of containing box, and when trigger switch on the dead lever is triggered, the control pump body sprays the coolant liquid of liquid reserve tank inside on each mould through connecting pipe two indirection, realizes the cooling of mould.

The invention provides a positioning stamping forming device for a hot forging. The beneficial effects are as follows:

1. According to the invention, the prepositioning assembly consisting of the components such as the supporting rod, the positioning wheel and the movable seat is additionally arranged at the top of the lower die, and the linkage design that the clamping seats are synchronously driven to be close to each other by the gear transmission mechanism in the downward moving process of the upper die is matched, so that the prepositioning and die closing synchronous fixing integrated processing of the hot forging is realized, an independent positioning clamp and driving element are not required to be additionally arranged, the integral structure of the device is simplified, the manufacturing cost and the operation energy consumption of the device are reduced, the time loss caused by an additional positioning procedure is reduced, the stamping processing efficiency of the hot forging is effectively improved, meanwhile, the prepositioning assembly automatically centers and positions by means of the gravity of a workpiece, the clamping seats are synchronously clamped and fixed during die closing, the double positioning guarantee greatly improves the positioning precision of the hot forging, the forming defect caused by workpiece shifting in the stamping process is avoided, and the processing quality and the product consistency of the hot forging are further improved.

2. According to the invention, the top end of the ejector rod penetrates through the molding surface of the lower die, and the connecting shaft is utilized to rotate to drive the rotating disc to synchronously rotate, so that the hinged rod is driven to swing, the moving rod moves up and down to push the ejector rod upwards, automatic ejection of a workpiece after stamping molding is realized, manual workpiece taking or additional configuration of an independent ejection driving device is not needed, potential safety hazards and operation complexity caused by manual intervention are reduced, the interval time of processing procedures is shortened, and the integral processing efficiency of the hot forging is effectively improved.

3. According to the invention, the upper die moves up and down to drive the rubber piston to change the air pressure in the fixed cylinder, so that air is sucked through the air inlet pipe and is sprayed to the molding surface of the die through the air spraying pipe and the atomizing nozzle to remove fine scraps, meanwhile, the trigger switch on the fixed rod is used for triggering the pump body to spray cooling liquid in the liquid storage tank to each die through the second connecting pipe to realize the linkage design of cooling, so that the device structure is simplified, the equipment manufacturing cost and the operation energy consumption are reduced, the automatic synchronous operation of scrap cleaning and die cooling is realized, the influence of scrap residues on the stamping forming precision of subsequent workpieces is avoided, the die temperature is rapidly reduced to ensure the service life of the die, the time loss and the potential safety hazard caused by manual cleaning and cooling operation are reduced, and the processing efficiency and the product quality stability of the hot forging are effectively improved.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic diagram of the structure of the machine body of the present invention;

FIG. 3 is a schematic view of a second structure of the connecting pipe according to the present invention;

FIG. 4 is a cross-sectional view of a mount of the present invention;

FIG. 5 is a schematic view of a butt joint rod according to the present invention;

FIG. 6 is an enlarged view at A in FIG. 5;

FIG. 7 is a cross-sectional view of the lower mold of the present invention;

FIG. 8 is a schematic view of a clamping seat according to the present invention;

FIG. 9 is an enlarged view at B in FIG. 8;

Fig. 10 is a schematic structural view of an upper mold of the present invention.

Wherein, 1, the organism; 2, a supporting table;

31. the device comprises a first driving rack, 32, a limiting seat, 33, a first driving gear, 34, a connecting shaft, 35, a second driving gear, 36, a clamping seat, 37, a connecting seat, 38, a mounting rod, 39 and a second driving rack;

4. A lower die;

51. the device comprises a liquid storage tank, a first connecting pipe, a 53 pump body, a 54 connecting pipe, a second connecting pipe, a 55 and a conveying pipe;

61. a fixed cylinder 62, an air inlet pipe 63, a movable rod 64 and an air jet pipe;

71. the rotary disc, 72, the mounting groove, 73, the hinging rod, 74, the moving rod, 75, the ejector rod, 76 and the return spring I;

8. an upper die;

91. the device comprises a supporting rod, a 92 positioning wheel, a 93 connecting bar, a 94 moving seat, a 95 bar-shaped groove, a 96 connecting rod, a 97 reset spring II, a 98 sliding groove;

10. The device comprises a carrying mechanical arm, 11, a storage box, 12, an installation seat, 13, a trigger switch, 14, a swinging rod, 15, a fixing rod, 16 and a hydraulic cylinder.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-10, an embodiment of the invention provides a positioning and stamping forming device for hot forging, which comprises a machine body 1, a supporting table 2 is fixedly installed on the inner side of the machine body 1, an installation seat 12 is detachably connected to the top of the supporting table 2, a lower die 4 is detachably connected to the top of the installation seat 12, a hydraulic cylinder 16 is installed on the inner side of the machine body 1, an upper die 8 matched with the lower die 4 is fixedly connected to the driving end of the hydraulic cylinder 16, a mounting rod 38 is fixedly connected to the rear side of the upper die 8, a driving rack 31 is fixedly connected to the inner side of the mounting rod 38, a connecting shaft 34 is movably connected to the middle part of the rear side of the installation seat 12 through a bearing, a driving gear 33 and a driving gear 35 are sequentially and fixedly sleeved on one end, close to the driving rack 31, driving racks 39 are fixedly connected to the upper side and lower side of the inside of the limiting seat 32 in a horizontal direction, driving rack 39 is fixedly connected to the opposite sides of the two driving racks 39 through the connecting seat 37, a clamping assembly for positioning a workpiece is arranged on the top of the lower die 4, and the driving rack 33 is meshed with the driving rack 39 simultaneously. When the hydraulic cylinder 16 drives the upper die 8 to move downwards, the mounting rod 38 and the first driving rack 31 are synchronously driven to move downwards, and the vertical downward movement of the first driving rack 31 is converted into the synchronous relative horizontal movement of the second driving rack 39 through a gear transmission mechanism formed by the second driving gear 35, the connecting shaft 34, the first driving gear 33 and the second driving rack 39, so that the two clamping seats 36 are driven to be close to each other to clamp and fix the workpiece pre-positioned by the positioning assembly.

The hydraulic cylinder 16 is used as a core power source, the driving end of the hydraulic cylinder 16 downwards extends to drive the upper die 8 to synchronously downwards move, a mounting rod 38 fixedly connected with the upper die 8 downwards moves along with the upper die, the driving rack 31 at the inner side of the mounting rod 38 is pulled to stably and vertically linearly move downwards, the linear movement is efficiently converted into the rotary movement of the driving gear 35 because the driving rack 31 is accurately meshed with the driving gear 35, the rotary moment is transmitted to the driving gear 33 through a connecting shaft 34 coaxially arranged, the driving gear 33 synchronously rotates, the driving gear 33 simultaneously meshes with two driving racks 39 which horizontally move in a limiting seat 32, the rotary movement is converted into the synchronous relative horizontal movement of the two driving racks 39 by virtue of the transmission characteristic of the gear racks, the two clamping seats 36 are driven to stably and synchronously mutually approach each other by virtue of the connecting seat 37, in the process, a positioning assembly at the top of the lower die 4 does not need to finish the pre-centering positioning of a hot forging, the clamping seat 36 accurately receives the positioning reference, the workpiece is clamped and fixed in a secondary mode, the whole power transmission and the linkage motion is simultaneously meshed with the two driving racks 39, the two driving racks 39 are horizontally smoothly moved in a coordinated mode, the upper die 8 is matched with a transmission path, and the workpiece is stably and stably clamped by the driving mechanism is fixedly arranged.

The positioning assembly comprises a plurality of sliding grooves 98 formed in the inner side of the lower die 4, each sliding groove 98 is elastically connected with a movable seat 94 through a second reset spring 97, the top of each movable seat 94 is fixedly connected with a supporting rod 91, the top end of each supporting rod 91 extends to the upper surface of the lower die 4, a strip-shaped groove 95 is formed in the outer surface of each movable seat 94, the inner wall of each strip-shaped groove 95 is movably connected with a connecting rod 96 through a rotating shaft, one end of each connecting rod 96, far away from each movable seat 94, is connected with a positioning wheel 92 through a connecting rod 93, when a workpiece is placed at the top of the lower die 4, the workpiece gravity drives the supporting rods 91 and the movable seats 94 to move downwards along the sliding grooves 98, one end of each connecting rod 96 is driven to slide along the inner wall of each strip-shaped groove 95, and then the positioning wheels 92 are pushed to be close to the workpiece side and are abutted with the outer wall of the workpiece, and preliminary positioning of the workpiece is achieved.

Specifically, the plurality of sliding grooves 98 formed in the inner side of the lower die 4 provide stable vertical sliding guiding for the movable seat 94, the movable seat 94 is elastically connected with the sliding grooves 98 through the second return spring 97, the top end of the abutting rod 91 protrudes out of the upper surface of the lower die 4 under the elastic supporting force of the second return spring 97 in the initial state, when a hot forging is placed on the top of the lower die 4, the gravity of a workpiece overcomes the elastic force of the second return spring 97, and the abutting rod 91 is driven to drive the movable seat 94 to stably move downwards along the sliding grooves 98;

In the process of downward movement of the movable seat 94, one end of the connecting rod 96 is pulled by the strip groove 95 on the outer surface to slide along the groove wall by the rotating shaft, vertical downward movement of the movable seat 94 is converted into swinging movement of the connecting rod 96 by means of the inclined guiding function of the strip groove 95, and then the positioning wheels 92 are pushed to synchronously close to the workpiece side by the connecting rod 93 until the plurality of positioning wheels 92 are uniformly abutted against the outer wall of the workpiece, friction damage to the surface of the workpiece is reduced by utilizing the rolling characteristic of the positioning wheels 92, automatic centering and primary positioning of the workpiece are realized by multi-directional abutting acting force, an accurate positioning reference is provided for the subsequent die clamping process, and the elastic restoring force of the second restoring spring 97 can drive each part to quickly restore after the stamping is finished, so that continuous processing of the next workpiece is facilitated.

The inner top of the machine body 1 is fixedly connected with two symmetrically arranged fixed cylinders 61, the inside of each fixed cylinder 61 is hermetically and slidingly connected with a rubber piston, the bottom of each rubber piston is fixedly connected with a movable rod 63, one end of each movable rod 63, which is far away from the rubber piston, is fixedly connected with the top of the upper die 8, the outer surface of each fixed cylinder 61 is respectively communicated with an air inlet pipe 62 and an air injection pipe 64, the air outlet end of one air injection pipe 64 faces the forming surface of the upper die 8, the air outlet end of the other air injection pipe 64 faces the forming surface of the lower die 4, the end of each air injection pipe 64 is provided with an atomizing nozzle, when the upper die 8 moves up and down, the movable rod 63 and the rubber piston are driven to slide along the inside of the fixed cylinder 61, air pressure in the fixed cylinder 61 is changed, and after air is sucked through the air inlet pipe 62, the air injection pipes 64 and the atomizing nozzles jet the forming surfaces of the dies to remove fine scraps generated in the stamping process. The fixed cylinder 61 and the air inlet pipe 62 are both provided with one-way valves, the one-way valve on the air inlet pipe 62 only allows air to enter the fixed cylinder 61 from the outside, and the one-way valve on the air injection pipe 64 only allows air to be sprayed out from the inside of the fixed cylinder 61.

Specifically, the fixed cylinder 61 symmetrically arranged at the top in the machine body 1 adopts a sealing design, the rubber piston in the fixed cylinder is tightly attached to the cylinder wall to ensure air pressure tightness, the movable rod 63 at the bottom of the rubber piston is directly connected with the upper die 8, and the linkage operation without additional driving elements is realized by the power of the up-and-down movement of the upper die 8;

When the hydraulic cylinder 16 drives the upper die 8 to move downwards, the movable rod 63 drives the rubber piston to slide upwards along the inside of the fixed cylinder 61, so that the space in the cylinder is compressed and the air pressure is increased, at the moment, the check valve on the air injection pipe 64 is conducted, high-pressure air is conveyed to the atomizing nozzle at the end part through the air injection pipe 64, the atomizing nozzle disperses the air into uniform air streams, and the uniform air streams are respectively and accurately sprayed towards the forming surfaces of the upper die 8 and the lower die 4, so that fine metal scraps generated in the stamping process are quickly blown away by the impact force of the air flow, and the influence of the scraps residue on the forming precision of subsequent workpieces is avoided;

When the upper die 8 is moved upwards after stamping, the movable rod 63 drives the rubber piston to slide downwards, negative pressure is formed in the fixed cylinder 61, the one-way valve on the air inlet pipe 62 is communicated, external air is sucked into the fixed cylinder 61 through the air inlet pipe 62 to supplement air for next cleaning operation, the reverse conduction design of the two one-way valves strictly limits a one-way flow path of the air, orderly switching of air suction and air injection actions is ensured, the whole mechanism realizes chip cleaning automation through linkage with the upper die 8, the device structure is simplified, the energy consumption is reduced, cleaning can be synchronously completed in a gap of a stamping process, the processing continuity is improved, and meanwhile, the damage to the die or a workpiece caused by overlarge local air flow can be avoided due to the air flow dispersing function of the atomizing nozzle.

The inside of mount pad 12 has been seted up mounting groove 72, the fixed cover in middle part of connecting axle 34 is equipped with rolling disc 71, the periphery eccentric position of rolling disc 71 is connected with two symmetrical arrangement's articulated rod 73 through the pivot rotation, the one end that rolling disc 71 was kept away from to every articulated rod 73 all articulates has movable rod 74, the inboard of mount pad 12 is followed vertical direction sliding connection and is had two ejector pins 75 that evenly distributed around the circumference of bed die 4, the top of ejector pin 75 runs through the molding surface to bed die 4, drive rolling disc 71 synchronous rotation when connecting axle 34 rotates, drive articulated rod 73 swing and promote movable rod 74 and reciprocate, and then drive ejector pin 75 pushes away upwards, realize the automatic ejection of work piece after the stamping forming. The outside cover of ejector pin 75 is equipped with reset spring one 76, and reset spring one 76's top and the inner wall butt of mounting groove 72, reset spring one 76's bottom and the middle part boss butt of ejector pin 75, the bottom of ejector pin 75 and the top of movable rod 74 all set up to the cambered surface structure of mutual adaptation.

Specifically, the mounting groove 72 in the mounting seat 12 provides stable mounting space for each transmission component, the rotating disc 71 fixedly sleeved in the middle of the connecting shaft 34 is connected with two symmetrically arranged hinging rods 73 in an eccentric manner, and the rotating motion of the connecting shaft 34 is converted into reciprocating swing of the hinging rods 73 by utilizing the eccentric transmission characteristic;

When the connecting shaft 34 reversely rotates after the stamping forming, the rotating disc 71 is driven to synchronously rotate, the hinging rod 73 swings along with the rotating disc and pushes the moving rod 74 hinged with the hinging rod to vertically upwards move, and as the top end of the moving rod 74 and the bottom end of the ejector rod 75 adopt mutually matched cambered surface structures, the friction force and stress concentration in the transmission process can be reduced, and smooth and efficient power transmission is ensured;

The two ejector rods 75 are uniformly distributed circumferentially around the lower die 4, the top ends of the two ejector rods penetrate through the molding surface of the lower die 4, the two ejector rods are synchronously pushed upwards under the pushing of the moving rod 74, the punched workpiece is enabled to be separated from the molding surface of the lower die 4 stably through uniform application of the pushing force, deformation or die clamping caused by uneven stress of the workpiece is avoided, the first reset spring 76 sleeved outside the ejector rods 75 is elastically limited through the inner wall of the mounting groove 72 and a boss in the middle of the ejector rods 75, after ejection is finished, the elastic reset force of the first reset spring 76 can quickly drive the ejector rods 75, the moving rod 74 and the hinging rod 73 to reset to an initial position, a reset driving element is not required to be additionally arranged, the mechanism structure is simplified, the processing continuity of the next workpiece is guaranteed, meanwhile, the whole ejection process is accurately matched with a punching process by means of the linkage of the connecting shaft 34 and the gear transmission mechanism, and the automation degree and the processing efficiency of equipment are improved.

The top one side fixedly connected with liquid storage tank 51 of organism 1, the pump body 53 is installed at the top of liquid storage tank 51, the input fixedly connected with connecting pipe one 52 of pump body 53, the output fixedly connected with transportation pipe 55 of pump body 53, the one end of transportation pipe 55 is connected with two connecting pipes two 54 through the three-way valve, the one end that the connecting pipe one 52 kept away from the pump body 53 extends to the inside of liquid storage tank 51, the internally mounted of connecting pipe two 54 has the check valve.

Specifically, the liquid storage tank 51 is used for storing a sufficient amount of cooling liquid, providing a continuous liquid source for cooling the mold, the pump body 53 arranged at the top of the liquid storage tank is used as a power core, the cooling liquid is extracted from the liquid storage tank 51 through the first connecting pipe 52, the distal end of the first connecting pipe 52 extends to the deep inside the liquid storage tank 51, and the cooling liquid can be stably extracted and impurities deposited at the bottom of the tank are not easy to inhale;

The pressure generated after the pump body 53 is started conveys the cooling liquid to the three-way valve through the conveying pipe 55, the cooling liquid is uniformly distributed to the two connecting pipes II 54 through the flow dividing effect of the three-way valve, synchronous liquid supply to the upper die 8 and the lower die 4 is realized, the one-way valve arranged in the connecting pipes II 54 strictly limits the one-way flowing direction of the cooling liquid, unstable liquid supply pressure or pollution of clean cooling liquid in the liquid storage tank 51 caused by backflow of the cooling liquid is avoided, meanwhile, the one-way valve can prevent chips and high-temperature gas generated in the stamping process from flowing backwards into the pipeline or the pump body 53 through the connecting pipes II 54, the effect of protecting the pipeline and the pump body 53 is realized, and the stable power provided by the pump body 53 is matched with reasonable pipeline layout and the protection design of the one-way valve through the whole mechanism, so that the cooling liquid can be accurately and efficiently conveyed to a die cooling area is ensured.

The inner side of the machine body 1 is fixedly provided with a carrying mechanical arm 10, the outer side of the machine body 1 is fixedly connected with a storage box 11, and the position of the storage box 11 is matched with the operation range of the carrying mechanical arm 10 and is used for storing the punched workpiece.

Specifically, the carrying mechanical arm 10 has flexible multi-dimensional movement capability, can accurately respond to control signals to finish the actions of grabbing, transferring and the like of workpieces, and can cover the workpiece ejection area of the lower die 4 and the opening area of the containing box 11 through accurate planning to ensure smooth and efficient transfer process, the containing box 11 adopts an upward opening design, the position of the containing box is accurately matched with the operation range of the carrying mechanical arm 10, so that the risk of falling of the workpieces in the transfer process is avoided, the carrying mechanical arm 10 can finish the workpiece placement in the shortest path, and the transfer time loss is reduced;

after the stamping formed workpiece is automatically ejected by the ejector rod 75, the carrying mechanical arm 10 can be quickly moved to the upper side of the lower die 4, the workpiece is stably clamped through the grabbing structure of the adaptation, then the workpiece is transferred to the inside of the storage box 11 to be stored, manual workpiece taking is not needed, the manual labor intensity is reduced, the potential safety hazard of high-temperature workpieces to operators is avoided, automatic connection of workpiece processing and storage is realized, the process interval time is shortened, the whole production efficiency is improved, and meanwhile the storage box 11 can be used for carrying out centralized storage on formed workpieces, so that the subsequent unified arrangement and transportation are facilitated.

The inside fixedly connected with dead lever 15 of organism 1, the tip of connecting axle 34 runs through the outside of mount pad 12 and fixedly connected with swinging arms 14, trigger switch 13 is all installed to the front end of mount pad 12 and the bottom of dead lever 15, when trigger switch 13 on mount pad 12 is triggered, control transport arm 10 places the work piece after the punching press is accomplished in the inside of containing box 11, when trigger switch 13 on dead lever 15 is triggered, control pump body 53 is with the inside coolant liquid of liquid reserve tank 51 through connecting pipe two 54 indirect injection on each mould, realize the cooling of mould.

Specifically, the two trigger switches 13 respectively establish signal linkage with the carrying mechanical arm 10 and the pump body 53, when the connecting shaft 34 reversely rotates after stamping forming to drive the swinging rod 14 to swing and touch the trigger switch 13 on the mounting seat 12, the trigger signals are quickly transmitted to the control system to control the carrying mechanical arm 10 to start and execute preset actions, the ejected formed workpiece is accurately transferred into the storage box 11, the trigger switch 13 touching the bottom of the fixed rod 15 on the upper die 8 is triggered, at the moment, the trigger signals control the pump body 53 to start, and the cooling liquid in the liquid storage box 51 is sprayed to each die through the second connecting pipe 54 to realize cooling.

The working principle is that an operator transfers a hot forging piece (such as a metal blank and a metal plate) to be processed to the upper part of the molding surface of the lower die 4 through the carrying mechanical arm 10, so that the workpiece is stably placed at the top end of the abutting rod 91. The gravity of the workpiece acts on the abutting rod 91, the abutting rod 91 is driven to drive the movable seat 94 to slide downwards along the sliding groove 98, and the reset spring II 97 is compressed. Along with the downward movement of the movable seat 94, one end of the connecting rod 96 slides along the inner wall of the bar-shaped groove 95, and the connecting rod 93 pulls the positioning wheels 92 to synchronously close to the workpiece side until the positioning wheels 92 are tightly abutted with the outer wall of the workpiece, so that the automatic centering and the preliminary positioning of the workpiece are completed, and the initial position of the workpiece is ensured to be accurate.

After the preliminary positioning is completed, the hydraulic cylinder 16 is started, and the driving end of the hydraulic cylinder extends downwards and drives the upper die 8 to synchronously move downwards. In the downward movement process of the upper die 8, the mounting rod 38 fixed at the rear side thereof moves downward along with the downward movement, and then drives the first driving rack 31 at the inner side of the mounting rod 38 to vertically move downward. Since the first driving rack 31 is meshed with the second driving gear 35, the linear motion of the first driving rack 31 is converted into the rotary motion of the second driving gear 35, and the rotary motion is transmitted through the connecting shaft 34 to drive the first coaxially fixed driving gear 33 to synchronously rotate. The first driving gear 33 is meshed with the two driving racks two 39 sliding up and down in the limiting seat 32 at the same time, the rotary motion is converted into synchronous relative horizontal motion of the two driving racks two 39, and the two clamping seats 36 are pushed to be close to each other through the connecting seat 37 until the clamping seats 36 are tightly attached to two sides of a workpiece, so that clamping and fixing of the workpiece are realized, and workpiece displacement in the stamping process is avoided.

With the upper die 8 continuing to move downwards until the upper die is matched with the lower die 4, the stamping force is applied to the workpiece after clamping and fixing by utilizing the molding surface matching of the upper die 8 and the lower die 4, and the stamping forming processing of the hot forging is completed.

After the stamping forming, the driving end of the hydraulic cylinder 16 is contracted upwards to drive the upper die 8 to move upwards synchronously. When the upper die 8 moves upwards, the mounting rod 38 and the first driving rack 31 move upwards, and the connecting shaft 34 is driven to rotate reversely through the gear transmission mechanism. When the connecting shaft 34 reversely rotates, the rotating disc 71 fixedly sleeved in the middle synchronously rotates, and the two hinging rods 73 eccentrically connected with the outer periphery thereof swing to push the moving rod 74 hinged with the rotating disc to move upwards. Because the top end of the moving rod 74 and the bottom end of the ejector rod 75 are both adaptive cambered surfaces, when the moving rod 74 moves upwards, the ejector rod 75 is driven to vertically slide upwards along the inner side of the mounting seat 12, and the first return spring 76 is compressed. The top end of the ejector rod 75 penetrates through the molding surface of the lower die 4, the workpiece after stamping molding is pushed upwards, the workpiece is separated from the molding surface of the lower die 4, and automatic ejection of the workpiece is realized.

In the process of reversely rotating the connecting shaft 34, the end part of the connecting shaft penetrates through the swinging rod 14 outside the mounting seat 12 to swing synchronously, and when the swinging rod 14 touches the trigger switch 13 at the front end of the mounting seat 12, the trigger signal controls the starting of the carrying mechanical arm 10. The carrying mechanical arm 10 moves to the upper side of the lower die 4, grabs the ejected formed workpiece, and transfers the formed workpiece to the storage box 11 to finish storage, so that automatic collection of the processed workpiece is realized.

After the workpiece is stored, the hydraulic cylinder 16 continues to drive the upper die 8 to move upwards, the movable rod 63 fixed at the top of the upper die 8 moves upwards along with the upper die, and the rubber piston in the fixed cylinder 61 is pulled to slide upwards along the cylinder wall, so that the air pressure in the fixed cylinder 61 is increased. Because the check valve on the air jet pipe 64 only allows the air to be ejected outwards, the air in the fixed cylinder 61 is conveyed to the atomizing nozzle at the end part through the air jet pipe 64, and air flow is ejected to the molding surfaces of the upper die 8 and the lower die 4, so that fine scraps generated in the stamping process are blown off the die surface, and automatic cleaning of the die is realized. When the upper die 8 moves up to a preset position, the upper die 8 touches the trigger switch 13 at the bottom of the fixed rod 15, and the trigger signal controls the pump body 53 to start. The pump body 53 extracts cooling liquid from the liquid storage tank 51 through the first connecting pipe 52, distributes the cooling liquid to the second connecting pipes 54 through the conveying pipe 55 and the three-way valve, sprays the cooling liquid to the molding surfaces of the upper die 8 and the lower die 4 through the second connecting pipes 54, realizes quick cooling of the dies, and prepares for the next stamping process.

After the cooling is completed, the pump body 53 stops working, and the hydraulic cylinder 16 drives the upper die 8 to return to the initial upper position. The ejector rod 75 slides downwards to reset under the action of the elastic restoring force of the first reset spring 76, the movable seat 94 slides upwards under the action of the elastic restoring force of the second reset spring 97, the abutting rod 91 and the positioning wheel 92 are driven to reset, and the device is restored to an initial state and can carry out the processing cycle of the next workpiece.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A positioning and stamping forming device for hot forgings, characterized in that it includes a machine body (1), a support platform (2) is fixedly installed on the inner side of the machine body (1), a mounting seat (12) is detachably connected to the top of the support platform (2), a lower mold (4) is detachably connected to the top of the mounting seat (12), a hydraulic cylinder (16) is installed on the inner side of the machine body (1), an upper mold (8) adapted to the lower mold (4) is fixedly connected to the driving end of the hydraulic cylinder (16), a mounting rod (38) is fixedly connected to the rear side of the upper mold (8), a drive rack (31) is fixedly connected to the inner side of the mounting rod (38), a connecting shaft (34) is movably connected to the middle of the rear side of the mounting seat (12) through a bearing, a drive gear (33) and a drive gear (35) are sequentially fixedly sleeved along the axial direction at one end of the connecting shaft (34) near the drive rack (31), and the mounting seat ( 12) is fixedly connected to the rear side of the limiting seat (32). The upper and lower sides of the limiting seat (32) are slidably connected to the second drive rack (39) in the horizontal direction. The opposite sides of the two second drive racks (39) are fixedly connected to the clamping seat (36) through the connecting seat (37). The top of the lower mold (4) is provided with a positioning component for pre-positioning the workpiece. When the hydraulic cylinder (16) drives the upper mold (8) to move downward, it synchronously drives the mounting rod (38) and the first drive rack (31) to move downward. Through the gear transmission mechanism composed of the second drive gear (35), the connecting shaft (34), the first drive gear (33) and the second drive rack (39), the vertical downward movement of the first drive rack (31) is converted into the synchronous relative horizontal movement of the two second drive racks (39), which in turn drives the two clamping seats (36) to move closer to each other, so as to clamp and fix the workpiece after it has been pre-positioned by the positioning component.

The positioning assembly includes multiple grooves (98) formed inside the lower mold (4). Each groove (98) is elastically connected to a movable seat (94) via a return spring (97). A stop rod (91) is fixedly connected to the top of the movable seat (94). The top end of the stop rod (91) extends to the upper surface of the lower mold (4). A strip groove (95) is formed on the outer surface of the movable seat (94). The inner wall of the strip groove (95) is movable via a rotating shaft. A connecting rod (96) is connected. The end of the connecting rod (96) away from the moving seat (94) is connected to a positioning wheel (92) via a connecting strip (93). When the workpiece is placed on the top of the lower mold (4), the workpiece gravity drives the abutment rod (91) and the moving seat (94) to move downward along the slide groove (98), causing one end of the connecting rod (96) to slide along the inner wall of the strip groove (95), thereby pushing the positioning wheel (92) to move closer to the workpiece side and abut against the outer wall of the workpiece, thus achieving the initial positioning of the workpiece.

The inner top of the body (1) is fixedly connected to two symmetrically arranged fixed cylinders (61). Each fixed cylinder (61) is sealed and slidably connected to a rubber piston. The bottom of the rubber piston is fixedly connected to a movable rod (63). The end of the movable rod (63) away from the rubber piston is fixedly connected to the top of the upper mold (8). The outer surface of the fixed cylinder (61) is connected to an air inlet pipe (62) and an air jet pipe (64). The air outlet of one of the air jet pipes (64) faces the forming surface of the upper mold (8), and the air outlet of the other air jet pipe (64) faces the forming surface of the lower mold (4). An atomizing nozzle is installed at the end of the air jet pipe (64). When the upper mold (8) moves up and down, it drives the movable rod (63) and the rubber piston to slide along the inside of the fixed cylinder (61), changing the air pressure inside the fixed cylinder (61). After the air is drawn in through the air inlet pipe (62), it is sprayed onto the forming surface of the mold through the air jet pipe (64) and the atomizing nozzle to remove the small debris generated during the stamping process.

The mounting base (12) has an internal mounting groove (72). A rotating disk (71) is fixedly sleeved in the middle of the connecting shaft (34). Two symmetrically arranged hinge rods (73) are rotatably connected to the outer periphery of the rotating disk (71) through a rotating shaft. Each hinge rod (73) has a moving rod (74) hinged to the end away from the rotating disk (71). Two push rods (75) are slidably connected to the inner side of the mounting base (12) in the vertical direction, which are evenly distributed around the lower mold (4). The top of the push rod (75) penetrates to the forming surface of the lower mold (4). When the connecting shaft (34) rotates, it drives the rotating disk (71) to rotate synchronously, drives the hinge rod (73) to swing and pushes the moving rod (74) to move up and down, thereby driving the push rod (75) to push upward, so as to realize the automatic ejection of the workpiece after stamping.

A fixed rod (15) is fixedly connected to the inner side of the body (1). The end of the connecting shaft (34) passes through the outer side of the mounting base (12) and is fixedly connected to a swing rod (14). A trigger switch (13) is installed at the front end of the mounting base (12) and the bottom of the fixed rod (15). When the trigger switch (13) on the mounting base (12) is triggered, the handling robot arm (10) is controlled to place the stamped workpiece inside the storage box (11). When the trigger switch (13) on the fixed rod (15) is triggered, the pump body (53) is controlled to indirectly spray the coolant inside the liquid storage tank (51) onto each mold through the connecting pipe (54) to achieve mold cooling.

2. The positioning and stamping forming device for hot forgings according to claim 1, characterized in that the teeth of the second driving gear (35) mesh with the teeth of the first driving rack (31), and the teeth of the first driving gear (33) mesh with the teeth of the two second driving racks (39) simultaneously.

3. The positioning and stamping forming device for hot forgings according to claim 1, characterized in that one-way valves are installed on the outside of both the fixed cylinder (61) and the air inlet pipe (62), the one-way valve on the air inlet pipe (62) only allows gas to enter the interior of the fixed cylinder (61) from the outside, and the one-way valve on the jet pipe (64) only allows gas to be ejected from the interior of the fixed cylinder (61) to the outside.

4. The positioning and stamping forming device for hot forgings according to claim 1, characterized in that a return spring (76) is sleeved on the outside of the top rod (75), the top end of the return spring (76) abuts against the inner wall of the mounting groove (72), the bottom end of the return spring (76) abuts against the middle boss of the top rod (75), and the bottom end of the top rod (75) and the top end of the moving rod (74) are both set as mutually compatible arc surface structures.

5. A positioning and stamping forming device for hot forgings according to claim 1, characterized in that a liquid storage tank (51) is fixedly connected to one side of the top of the machine body (1), a pump body (53) is installed on the top of the liquid storage tank (51), a connecting pipe (52) is fixedly connected to the input end of the pump body (53), a transport pipe (55) is fixedly connected to the output end of the pump body (53), one end of the transport pipe (55) is connected to two connecting pipes (54) through a three-way valve, the end of the connecting pipe (52) away from the pump body (53) extends into the interior of the liquid storage tank (51), and a one-way valve is installed inside the connecting pipe (54).

6. The positioning and stamping forming device for hot forgings according to claim 1, characterized in that a handling robot arm (10) is fixedly installed on the inner side of the machine body (1), and a storage box (11) is fixedly connected to the outer side of the machine body (1), the position of the storage box (11) is adapted to the working range of the handling robot arm (10), and is used to store the stamped workpiece.