CN119974641B - Drum brake block stamping equipment - Google Patents
Drum brake block stamping equipmentInfo
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- CN119974641B CN119974641B CN202510476180.9A CN202510476180A CN119974641B CN 119974641 B CN119974641 B CN 119974641B CN 202510476180 A CN202510476180 A CN 202510476180A CN 119974641 B CN119974641 B CN 119974641B
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Abstract
本发明涉及一种鼓式刹车片冲压加工设备，属于鼓式刹车片加工设备技术领域。本发明包括机架，机架上设有模压组件和能够上下活动的冲头，机架上还设有转盘，转盘外周设有上料工位、冲压工位、保压工位和排料工位，冲头位于冲压工位处，模压组件设有四组且均匀布置在转盘上，模压组件包括底模、顶模、固定轴以及顶杆，顶杆与固定轴之间连接有扭簧，顶杆的底端设有能够弹性活动的插块，顶模上设有开口朝上的插槽，转盘能够依次转动设定角度，以带动各模压组件依次转动至各工位处，模压组件转动至冲压工位处时，冲头推动顶模向下移动进行冲压，并顶推着顶杆向下摆动。本发明使冲压工序与保压工序可以在不同空间进行，能够提高生产效率。
The present invention relates to a drum brake pad stamping processing equipment, belonging to the technical field of drum brake pad processing equipment. The present invention includes a frame, a molding assembly and a punch that can move up and down are provided on the frame, a turntable is also provided on the frame, a loading station, a stamping station, a pressure holding station and a discharge station are provided on the outer periphery of the turntable, the punch is located at the stamping station, the molding assembly is provided with four groups and is evenly arranged on the turntable, the molding assembly includes a bottom mold, a top mold, a fixed shaft and a push rod, a torsion spring is connected between the push rod and the fixed shaft, the bottom end of the push rod is provided with an insert block that can move elastically, and the top mold is provided with a slot with an opening facing upwards. The turntable can rotate to a set angle in sequence to drive each molding assembly to rotate to each station in sequence. When the molding assembly rotates to the stamping station, the punch pushes the top mold to move downward for stamping, and pushes the push rod to swing downward. The present invention enables the stamping process and the pressure holding process to be carried out in different spaces, which can improve production efficiency.
Description
Technical Field
The invention relates to the technical field of drum brake pad processing equipment, in particular to drum brake pad stamping processing equipment.
Background
Drum brake pads are a critical component in automotive braking systems for providing friction when the vehicle is decelerating or stopped. Drum brake pads are typically composed of a friction material, typically a blend of various organic and inorganic components, including fibers, fillers, binders, and other additives, and a metal backing. In the process of processing the friction material, the selected raw materials are uniformly mixed in proportion, the mixed friction material is pre-pressed into a required shape by using a die, and then the pressed friction material is maintained for a certain period of time, so that the formed friction material has better quality and performance.
In the prior art, a stamping mechanism generally uses a power element in a stamping device to continuously press an upper die on a workpiece for a period of time after stamping is finished to keep the pressure of the workpiece, for example, a protective cover stamping forming die disclosed in patent publication No. CN217251935U comprises a female die, a male die, an upper die holder, a first lower die, a second lower die, a baffle plate, a stripper plate and a lower die holder, when the die is used for stamping forming, a blank material is heated to a required temperature and then placed on the upper surface of the female die, the blank material is positioned through the baffle plate, the main shaft of the press machine is enabled to rotate through the clutch switch of the machine tool to drive the sliding block to drive the upper die part of the die to descend, the blank material is pressed and formed under the action of the male die and the female die, and pressure is maintained for a period of time after forming.
The device is holding blank material through terrace die and carrying out the pressurize, and during the pressure retention, power component and whole die are all occupied by the pressurize process, can't carry out the punching press to new blank, if carry out batch processing, the pressurize process needs to consume more time, and production efficiency is slower.
Disclosure of Invention
The invention provides drum brake pad stamping processing equipment, which aims to solve the technical problems that when the drum brake pads are processed in batches by adopting stamping equipment in the prior art, a power element is needed to tightly close a die to keep pressure on a product, so that the power element and the die occupy too long time in the pressure keeping process, and the production efficiency is affected.
In order to solve the problems, the invention provides drum brake pad stamping equipment which adopts the following technical scheme:
The drum brake pad stamping processing equipment comprises a frame, wherein a die pressing assembly and a punch capable of moving up and down are arranged on the frame, a turntable which is horizontally arranged and capable of rotating around a vertically extending axis is further arranged on the frame, a feeding station, a stamping station, a pressure maintaining station and a discharging station which are sequentially and uniformly arranged are arranged on the periphery of the turntable, and the punch is positioned at the stamping station;
the mould pressing assembly is provided with four groups and is uniformly arranged on the turntable along the circumferential direction of the turntable, the mould pressing assembly comprises a bottom mould fixedly arranged on the turntable, a top mould which is elastically movable up and down and is arranged above the bottom mould, a fixed shaft which is fixedly arranged on the turntable and is positioned above the top mould, and a top rod which is rotatably arranged on the fixed shaft, a torsion spring for enabling the top rod to maintain an inclined state is connected between the top rod and the fixed shaft, an inserting block which can elastically move along the rod length direction of the top rod is arranged at the bottom end of the top rod, and a slot with an upward opening is arranged on the top mould;
the turntable can rotate a set angle in turn to drive each mould pressing assembly to rotate to each station in turn, when the mould pressing assembly rotates to the stamping station, the punch head pushes the top mould to move downwards to punch and push the ejector rod to swing downwards, the ejector rod swings to a vertical state when the top mould moves to the bottom limit position, and the insert block is inserted into the slot when the ejector rod swings to the vertical state.
By adopting the technical scheme, in the process of downward movement of the punch, the top die can be driven to move towards the bottom die, the ejector rod can be driven to swing towards the vertical state, when the top die moves to the bottom limit position, the ejector rod swings to the vertical state, the insert at the bottom end of the ejector rod is inserted into the slot, the ejector rod is locked in the vertical state, the top die is pushed by the ejector rod, the top die can still be kept at the bottom limit position after being separated from the punch, and thus the top die can still be pressed on a workpiece to keep the pressure after the punch leaves the top die, the die pressing assembly can be rotated to a pressure keeping station to keep the pressure, in the pressure keeping process, the other group of die pressing assemblies are rotated to the stamping station to carry out stamping, the stamping process and the pressure keeping process are independent of each other in space, one workpiece is being stamped, and the other workpiece is kept pressure in the stamping process, so that in the batch production process, the processing time can be greatly shortened, and the production efficiency is effectively improved.
Further, the punch comprises a pressing column and a pressing plate vertically connected to the pressing column, the bottom end of the pressing column is located below the pressing plate, and in the process that the punch moves downwards, the pressing column pushes the top die to move downwards, and the pressing plate pushes the ejector rod to swing downwards.
Further, still be equipped with feed mechanism in the frame, feed mechanism is located material loading station department, and feed mechanism is including the feed box that can follow carousel radial movement, and the feed box is including sealing all around and the upper and lower charging frame that runs through and the shutoff piece that is used for shutoff at the charging frame bottom, and shutoff piece and charging frame can remove to Fang Shixiang on the die block at the feed box to open the bottom of feed box and make the material in the feed box drop on the die block.
By adopting the technical scheme, the feeding box comprises the feeding frame and the plugging piece which can relatively move with the feeding frame, when the feeding box moves to the upper part of the bottom die, the plugging piece is separated from the feeding frame, the bottom end of the feeding frame is opened, the material falls to the bottom die under the dead weight, the feeding box does not need to be overturned to pour out the material inside, and the feeding process is simpler and more convenient.
Further, the feeding frame and the blocking piece can slide relatively along the radial direction of the rotary table, an elastic piece I which can stretch and retract along the radial direction of the rotary table is connected between the feeding frame and the blocking piece, the elastic piece I enables the blocking piece to be kept in a state of being opposite to the feeding frame up and down, the feeding mechanism further comprises a baffle plate arranged on the frame, the baffle plate and the blocking piece are mutually blocked in the radial direction of the rotary table, and when the feeding box moves to a set position above the bottom die, the blocking piece is blocked by the baffle plate and is staggered with the feeding frame, so that materials in the feeding box fall on the bottom die.
By adopting the technical scheme, before the feeding box moves to the upper part of the bottom die, the feeding frame and the plugging piece keep synchronously moving, so that the bottom of the feeding frame is always in a state of being plugged by the plugging piece, materials are prevented from falling, when the feeding box moves to the upper part of the bottom die, the plugging piece is blocked by the baffle and does not move forward any more, the feeding frame continues to move forward, the bottom end of the feeding frame is opened, the feeding frame pushes materials on the plugging piece forward, and the materials fall into the groove on the bottom die, so that feeding is realized. The blocking piece is blocked by the baffle plate, so that the feeding frame and the blocking piece are staggered, feeding is realized, and the structure is simple and ingenious.
Further, reset mechanism still is equipped with in the frame, and reset mechanism is located row material station department, and reset mechanism includes kicking block and reset push rod, and the kicking block is installed on the cope and is located the inserted block below of inserting in the slot of activity from top to bottom, and reset push rod movable mounting is in the frame, and reset push rod and kicking block transmission are connected, and reset push rod can be moved in order to drive kicking block upward movement towards the carousel to make the kicking block ejecting slot with the inserted block.
By adopting the technical scheme, the reset push rod drives the ejector block to move upwards in the process of moving towards the turntable, so that the ejector block pushes the insertion block out of the slot, then the ejector rod swings upwards to reset under the action of the torsion spring, the ejector rod does not push between the fixed shaft and the top die any more, the top die elastically resets upwards, a workpiece on the bottom die is exposed, the reset mode is simple and convenient, the workpiece is convenient to take out after reset, and the workpiece is also convenient to rotate to a feeding station for processing the next brake block.
Further, the kicking block is the screw rod of vertical extension, and the screw rod is locked and is changeed and install in the cope, and screw rod outside spiral cover is equipped with the gear, and the fixed installation of position is on the cope about the gear is equipped with the rack that can elasticity slip in the horizontal direction in the cope, rack and gear engagement, and reset push rod can promote the rack slip in order to drive gear rotation at the in-process that moves towards the carousel to drive the screw rod and upwards remove ejecting slot with the kicking block.
By adopting the technical scheme, the reset push rod is in transmission connection with the top block through the rack and the gear, so as to drive the top block to move up and down, and the transmission structure is simple and is convenient to arrange.
Further, be equipped with the punching press passageway that runs through from top to bottom and along the radial ejection of compact passageway that extends of carousel on the die block, the ejection of compact passageway is close to the one end at carousel center and is sealed, and the other end is open, and ejection of compact passageway is located the bottom of punching press passageway and communicates with the punching press passageway, and slidable mounting has the supporting shoe in the ejection of compact passageway, is connected with the elastic component II between supporting shoe and the die block, and the elastic component II exerts the elastic force of backing disc center to the supporting shoe, makes the supporting shoe keep in the state of the bottom shutoff with the punching press passageway, and the bottom of punching press passageway is blocked by the supporting shoe and forms the punching press cavity.
By adopting the technical scheme, the supporting block seals the bottom end of the stamping channel to form the stamping cavity, the supporting block can slide in the discharging channel, after the workpiece is machined, the supporting block slides to the side of the stamping channel along the discharging channel, the workpiece can move downwards into the discharging channel, and then the supporting block elastically resets under the action of the elastic piece II, so that the workpiece falling in the discharging channel can be pushed out from the discharging channel, and the discharging is facilitated.
Further, a discharging mechanism is arranged on the frame and is positioned at the discharging station, the discharging mechanism comprises a blowing pipeline and a discharging push rod, the blowing pipeline is movably arranged on the frame along the radial direction of the rotary table, and the air outlet end of the blowing pipeline is horizontally behind one end, close to the rotary table, of the reset push rod, so that the air outlet end of the blowing pipeline can be inserted between the top die and the bottom die after the top die is reset upwards;
the material discharging push rod and the supporting block are mutually blocked in the radial direction of the rotary table, one end of the material discharging push rod, which is close to the rotary table, is led to the air outlet end of the air blowing pipeline in the horizontal direction, so that the material discharging push rod can push away the supporting block before the air outlet end of the air blowing pipeline moves to the upper part of the punching cavity, the air outlet end of the air blowing pipeline can blow downwards to blow the brake block clamped in the punching channel into the discharging channel, and the material discharging push rod moves back to the rotary table after the brake block enters the discharging channel so that the supporting block is elastically reset to push the gravity center of the brake block out of the rotary table.
By adopting the technical scheme, the reset push rod drives the ejector block to move upwards to reset the ejector rod and the ejector die, and after the discharge push rod pushes the support block to the side of the punching channel, the air blowing pipeline is inserted between the ejector die and the bottom die, the air outlet end of the air blowing pipeline blows downwards to blow the workpiece into the discharge channel, and then the discharge push rod exits, the support block elastically resets, and the support block pushes the workpiece in the discharge channel out to realize discharge, so that the discharge process is more automatic and the discharge efficiency is high.
The drum brake pad stamping processing equipment has the beneficial effects that after stamping, the ejector rod can keep the top die at the bottom limit position, so that the top die and the punch can still press a workpiece after being separated, the workpiece is in a pressure maintaining state, the stamping process and the pressure maintaining process can be carried out at different positions, one part can be stamped while the other part is subjected to pressure maintaining in the batch processing process, time is not wasted due to unnecessary waiting in the stamping process, and the production efficiency is effectively improved.
Drawings
The above, as well as additional purposes, features, and advantages of exemplary embodiments of the present invention will become readily apparent from the following detailed description when read in conjunction with the accompanying drawings. In the drawings, embodiments of the invention are illustrated by way of example and not by way of limitation, and like reference numerals refer to similar or corresponding parts and in which:
FIG. 1 is a schematic perspective view of a drum brake pad stamping apparatus according to the present invention;
fig. 2 is a schematic perspective view of a turntable and a mold pressing assembly in a drum brake pad press processing apparatus according to the present invention;
Fig. 3 is a schematic perspective view of a mold pressing assembly in a drum brake pad press processing apparatus according to the present invention;
fig. 4 is a schematic structural diagram of a drum brake pad stamping device according to the present invention during feeding;
FIG. 5 is a schematic diagram of a drum brake pad stamping apparatus according to the present invention during reset and discharge;
FIG. 6 is a perspective cross-sectional view of a molding assembly in a drum brake pad stamping apparatus provided by the present invention;
Fig. 7 is a schematic structural view of a bottom mold in a drum brake pad stamping apparatus according to the present invention;
Fig. 8 is a schematic structural view of a bottom die and a supporting block in a drum brake pad stamping device according to the present invention;
Fig. 9 is a schematic structural diagram of a bottom die and a supporting block in a drum brake pad stamping device in a top view.
Reference numerals illustrate:
1. The device comprises a frame, 101, a working platform, 102, an operation box, 2, a pressing column, 3, a pressing plate, 4, a turntable, 5, a top die, 501, a slot, 6, a bottom die, 601, a punching channel, 602, a discharging channel, 603, a punching chamber, 7, a connecting plate II, 8, a connecting plate I, 9, a vertical guide rod, 10, a fixed shaft, 11, a push rod, 12, an inserting block, 13, a roller, 14, an elastic piece III, 15, a supporting plate, 16, a feeding frame, 17, a blocking piece, 171, a bottom plate, 172, a vertical plate, 18, a baffle plate, 19, a feeding driving piece, 20, a servo motor, 21, a connecting plate I, 22, a reset driving piece, 23, a reset push rod, 24, a movable block, 25, a movable block guide rod, 26, an elastic piece V, 27, a discharge push rod, 28, a blowing pipeline, 29, a rack, 30, a gear, 31, a top block, 32, a supporting block, 33, an elastic piece II, 34, a horizontal guide rod, 35, an elastic piece I, 36, a scraper, 37, a guide rod, a guide piece, 38, a six elastic piece, and a supporting piece 39.
Detailed Description
The following description of the embodiments of the present invention will be made more complete and clear to those skilled in the art by reference to the figures of the embodiments of the present 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.
The following is one example of a drum brake pad press working apparatus provided by the present invention:
As shown in fig. 1 to 9, a drum brake pad stamping processing device comprises a frame 1, a rotary table 4, a die pressing assembly, a feeding mechanism, a punch, a resetting mechanism and a discharging mechanism.
As shown in fig. 1, the frame 1 is arranged on the horizontal ground, a working platform 101 is arranged on the frame 1, an operation box 102 is arranged below the working platform 101, and a servo motor 20 is arranged in the operation box 102.
As shown in fig. 1,2, 4 and 5, the turntable 4 is arranged horizontally, and the turntable 4 is rotatably mounted on a work platform 101 on the frame 1 about a vertically extending rotation axis. The feeding station, the stamping station, the pressure maintaining station and the discharging station are uniformly and sequentially distributed on the circumference of the rotary table 4, and the servo motor 20 is in transmission connection with the rotary table 4 and is used for driving the rotary table 4 to sequentially rotate by 90 degrees so as to switch among the stations.
As shown in fig. 2, the molding assemblies are provided with four groups, and the four groups of molding assemblies are uniformly arranged on the turntable 4 in the circumferential direction of the turntable 4. As shown in fig. 3, the molding assembly includes a bottom mold 6, a vertical guide bar 9, a top mold 5, a fixed shaft 10, and a top bar 11.
The bottom die 6 is fixedly mounted on the turntable 4, and as shown in fig. 3 and 7, the bottom die 6 is provided with a punching passage 601 penetrating up and down and a discharging passage 602 extending along the radial direction of the turntable 4. One end of the discharging channel 602, which is close to the center of the turntable 4, is closed, the other end of the discharging channel is open, and the discharging channel 602 is positioned at the bottom end of the punching channel 601 and is communicated with the punching channel 601.
As shown in fig. 8 and 9, a supporting block 32 which is mutually matched with the discharging channel 602 is slidably mounted in the discharging channel 602, the top surface of the supporting block 32 is arc-shaped, one end, close to the center of the turntable 4, of the supporting block 32 is connected with a horizontal guide rod 34 which extends along the radial direction of the turntable 4, and the horizontal guide rod 34 is slidably arranged on the bottom die 6 along the radial direction of the turntable 4. A second elastic piece 33 is connected between the supporting block 32 and the bottom die 6, the second elastic piece 33 is a pressure spring capable of stretching radially along the turntable 4, and the second elastic piece 33 is sleeved outside the horizontal guide rod 34. The second elastic member 33 applies an elastic force to the support block 32 back to the center of the turntable 4, so that the support block 32 is blocked at the bottom of the punching channel 601 in a natural state, and a space above the support block 32 in the punching channel 601 forms a punching chamber 603.
As shown in fig. 3, four vertical guide rods 9 are provided, four vertical guide rods 9 are respectively arranged at four corners of the bottom die 6, and the four vertical guide rods 9 are fixedly connected with the bottom die 6, so that the vertical guide rods 9 and the turntable 4 are relatively fixed.
The top die 5 is located the die block 6 top, and the suit that top die 5 can slide from top to bottom is on four vertical guide bars 9, is connected with the elastic component III 14 between top die 5 and the die block 6, and the elastic component III 14 is the pressure spring that can follow vertical flexible, and the outside at vertical guide bar 9 is established to the elastic component III 14 cover. Four slots 501 with upward openings are arranged on the top surface of the top die 5, and the four slots 501 are distributed in a square shape.
The number of the fixed shafts 10 is two, and each fixed shaft 10 is connected between the top ends of two vertical guide rods 9 positioned on the same side of the discharging channel 602.
Four ejector rods 11 are arranged, and two ejector rods 11 are rotatably arranged on each fixed shaft 10. The top end of the ejector rod 11 is rotatably arranged on the fixed shaft 10, and a torsion spring is connected between the ejector rod 11 and the fixed shaft 10. When the torsion spring is not acted by external force, the ejector rods 11 are kept in an inclined state, and the ejector rods 11 which are respectively arranged on the two fixed shafts 10 are symmetrical and mutually close from top to bottom. Four connection positions between the four ejector rods 11 and the fixed shaft 10 are respectively opposite to the four slots 501.
The bottom of ejector rod 11 is the arc, and the bottom of ejector rod 11 is equipped with insert 12, and gyro wheel 13 is installed in the bottom rotation of insert 12. The insert block 12 is slidably mounted on the ejector rod 11 along the rod length direction of the ejector rod 11, an elastic piece IV is connected between the insert block 12 and the ejector rod 11, the elastic piece IV is a pressure spring which can stretch along the rod length direction of the ejector rod 11, and the elastic piece IV applies elastic force back to the ejector rod 11 to the insert block 12, so that the insert block 12 extends to the outer side of the ejector rod 11. When the top die 5 moves downwards to the bottom limit position, the ejector rod 11 can be vertically clamped between the fixed shaft 10 and the top die 5.
As shown in fig. 4, the feeding mechanism is mounted on the frame 1 and located at a feeding station, and includes a feeding driving member 19, a first connecting plate 8, a supporting plate 15, a feeding box, a first elastic member 35, and a baffle 18.
The feeding driving piece 19 adopts a feeding cylinder, the feeding cylinder is arranged on the frame 1 and positioned below the turntable 4, and the output end of the feeding cylinder can reciprocate along the radial direction of the turntable 4.
The first connecting plate 8 is positioned on the outer side of the rotary table 4, and the first connecting plate 8 is vertically connected to the output end of the feeding cylinder. The first connecting plate 8 is vertically connected with a first connecting plate guide rod 21, and the first connecting plate guide rod 21 is inserted on the frame 1 in a sliding manner along the horizontal direction.
The support plate 15 is vertically connected to the top end of the first connection plate 8 and is located on the side of the first connection plate 8 facing the turntable 4. The supporting plate 15 is provided with square through holes penetrating up and down, and one end of the supporting plate 15, which is opposite to the first connecting plate 8, is vertically connected with a scraping plate 36.
The feeding box comprises a feeding frame 16 and a blocking piece 17, wherein the feeding frame 16 is of a square frame structure with four closed sides, and the feeding frame 16 is connected to the supporting plate 15 and vertically opposite to the square perforation.
The blocking piece 17 is located on one side of the first connecting plate 8 facing the turntable 4, the blocking piece 17 is in an L-shaped plate-shaped structure, and the blocking piece 17 comprises a bottom plate 171 horizontally arranged and attached to the bottom surface of the supporting plate 15, and a vertical plate 172 vertically connected to one end of the bottom plate 171 facing away from the turntable 4. The end of the vertical plate 172 facing away from the bottom plate 171 is connected with a blocking piece guide rod 37 extending in the radial direction of the turntable 4, and the blocking piece guide rod 37 is slidably arranged on the first connecting plate 8.
The first elastic member 35 is connected between the vertical plate 172 and the first connecting plate 8, the first elastic member 35 is a compression spring capable of extending and contracting along the radial direction of the turntable 4, and the first elastic member 35 is sleeved on the outer side of the sealing member guide rod 37.
The baffle 18 is connected to the frame 1, the baffle 18 is vertically arranged, the baffle 18 and the vertical plate 172 are blocked with each other in the radial direction of the turntable 4, and the baffle 18 is located on the side of the vertical plate 172 facing the turntable 4.
The first connecting plate 8 can be driven to move towards the turntable 4 by the feeding driving piece 19 so as to drive the supporting plate 15 and the feeding frame 16 to move towards the turntable 4, the first connecting plate 8 drives the blocking piece 17 to synchronously move towards the turntable 4 along with the feeding frame 16 by the first elastic piece 35, when one end, close to the turntable 4, of the bottom plate 171 in the blocking piece 17 moves to above the punching cavity 603, the vertical plate 172 is blocked by the baffle plate 18, the blocking piece 17 does not synchronously move along with the feeding frame 16, the feeding frame 16 continues to move towards the center of the turntable 4, the bottom end of the feeding frame 16 is not blocked by the blocking piece 17, and materials in the feeding frame 16 fall into the punching cavity 603 to realize feeding.
As shown in fig. 1, the punch is located at the stamping station, the punch comprises a press column 2 and a press plate 3 vertically connected to the press column 2, the bottom end of the press column 2 is located below the press plate 3, the press column 2 is opposite to the middle part of a top die 5 in a die assembly rotated to the stamping station, and the space size of two push rods 11 respectively arranged on two fixing shafts 10 when swinging to the vertical state is equal to the width size of the press plate 3. The frame 1 is provided with a lifting cylinder, the pressing column 2 is connected to the driving output end of the lifting cylinder, and the pressing column 2 and the pressing plate 3 are driven by the lifting cylinder to reciprocate up and down.
As shown in fig. 5 and 6, the reset mechanism is located at the discharging station, and the reset mechanism comprises a reset driving piece 22, a second connecting plate 7, a reset push rod 23, a top block 31, a gear 30 and a rack 29.
The reset driving piece 22 adopts a reset cylinder, the reset cylinder is arranged on the frame 1 and positioned below the turntable 4, and the output end of the reset cylinder can slide back and forth along the radial direction of the turntable 4.
The second connecting plate 7 is vertically connected to the output end of the reset cylinder, the top of the second connecting plate 7 is provided with a movable block 24, the bottom of the movable block 24 is connected with a movable block guide rod 25 which extends vertically, the movable block guide rod 25 vertically slides and penetrates through the second connecting plate 7, an elastic part five 26 is connected between the bottom end of the movable block guide rod 25 and the second connecting plate 7, and the elastic part five 26 is a pressure spring and is sleeved on the outer side of the movable block guide rod 25.
The two reset push rods 23 are arranged, the two reset push rods 23 extend horizontally and are parallel to each other, and the two reset push rods 23 are vertically connected to the movable block 24 and are positioned on one side of the movable block 24 facing the turntable 4.
Four top blocks 31 are provided, and one top block 31 is provided at the bottom of each slot 501, and the top block 31 is located below the insert block 12 inserted into the slot 501. The top block 31 is specifically a screw rod which extends vertically and has a shorter length, the screw rod is arranged on the top die 5 in a rotation stopping manner and can slide on the top die 5 along the up-down direction, and the specific rotation stopping installation mode is that the bottom end of the screw rod is connected with a square rod which extends vertically, a square hole which extends vertically is arranged on the top die 5, and the square rod is inserted in the square hole.
As shown in fig. 6, four gears 30 are provided, one gear 30 is spirally sleeved on the outer side of each top block 31, a gear groove for accommodating the gears 30 is provided in the bottom die 6, and the gears 30 are located in the gear groove and blocked by the groove wall of the gear groove and cannot move up and down. The gear 30 is in screw transmission fit with the top block 31, and when the gear 30 rotates, the top block 31 can be driven to move in the up-down direction.
The racks 29 are two, each two racks 29 are disposed beside the two gears 30 disposed on the same side of the pressing chamber 603, the top mold 5 is provided with a bar-shaped chute, and the racks 29 are slidably disposed in the bar-shaped chute. An elastic member six 38 is connected between the rack 29 and the top die 5, and the elastic member six 38 is a compression spring that can expand and contract along the length direction of the rack 29. Each rack 29 is simultaneously intermeshed with two corresponding gears 30, and the two racks 29 are respectively collinear with the two return push rods 23.
When the reset driving piece 22 drives the second connecting plate 7 to move towards the turntable 4, the two reset push rods 23 are respectively inserted into the two bar-shaped sliding grooves and push the two racks 29 to move towards the center of the turntable 4, the gear 30 is driven to rotate, the gear 30 drives the top block 31 to move upwards, so that the top block 31 pushes the insert block 12 and the idler wheel 13 to the outer side of the slot 501, then the push rod 11 can swing upwards to reset under the action of the torsion spring, and the top die 5 elastically resets upwards under the action of the third elastic piece 14.
As shown in fig. 5, the discharging mechanism is also located at the discharging station, and the discharging mechanism includes a blowing pipe 28 and a discharging push rod 27, where the blowing pipe 28 and the discharging push rod 27 extend along the radial direction of the turntable 4, and the blowing pipe 28 and the discharging push rod 27 are both connected to the second connection plate 7 and located on one side of the second connection plate 7 facing the turntable 4. The air blowing duct 28 corresponds to an area between the top mold 5 and the bottom mold 6 after reset in the radial direction of the turntable 4, the discharge push rod 27 corresponds to the support block 32 in the radial direction of the turntable 4, and the air blowing duct 28 is shorter than the reset push rod 23 and the discharge push rod 27.
The discharging station is also provided with a supporting platform 39, the supporting platform 39 is connected to the frame 1, the supporting platform 39 is opposite to the discharging channel 602 on the bottom die 6 in the die pressing assembly rotating to the discharging station, and the top surface of the supporting platform 39 is flush with the top surface of the rotary table 4.
When the invention is used, friction materials to be punched are placed in the feeding box, then the feeding driving piece 19 is started, the feeding driving piece 19 drives the connecting plate I8 to move towards the turntable 4, and the feeding box is inserted between the top die 5 and the bottom die 6. When the feeding box moves to the position above the punching cavity 603 on the bottom die 6, the baffle plate 18 contacts with the vertical plate 172, the vertical plate 172 and the bottom plate 171 are blocked by the baffle plate 18 and do not move forward any more, the first connecting plate 8 drives the supporting plate 15 and the feeding frame 16 to move forward, the feeding frame 16 leaves the bottom plate 171, the bottom end opening of the feeding frame 16 is exposed, and materials between the feeding frame 16 and the bottom plate 171 fall into the punching cavity 603, so that feeding is realized.
After the material loading is finished, the material loading driving piece 19 drives the first connecting plate 8 to return to drive the supporting plate 15 to return to the back, and in the process, the scraping plate 36 is driven by the supporting plate 15 to return to the back, and the scraping plate 36 scrapes the accumulated materials in the punching cavity 603, so that the distribution of the materials in the punching cavity 603 is more uniform, and the punching effect is better.
And then the servo motor 20 drives the rotary table 4 to rotate 90 degrees, the fed die pressing assembly rotates to the stamping station for stamping, and the other group of die pressing assemblies rotates to the feeding station for feeding. At the stamping station, the punch moves downwards, the pressing column 2 contacts with the top die 5 to push the top die 5 to move downwards, the pressing plate 3 contacts with the ejector rod 11 to push the ejector rod 11 to swing downwards, the stamping is completed when the top die 5 moves downwards to the bottom limit position, meanwhile, the ejector rod 11 swings to a vertical state, the insert block 12 is inserted into the slot 501, the punch moves upwards to leave the top die 5, the position of the top die 5 is locked by the ejector rod 11, the top die 5 is fixed at the bottom limit position, and the pressed workpiece is tightly pressed.
The servo motor 20 drives the turntable 4 to rotate 90 degrees again, the stamped die assembly rotates to the pressure maintaining station for pressure maintaining, and the die assembly after feeding rotates to the stamping station for stamping. After the pressure maintaining is finished, the rotary table 4 rotates 90 degrees again, the pressure-maintaining die pressing assembly rotates to the discharging station, the reset driving piece 22 drives the connecting plate II 7 to move towards the rotary table 4, the reset push rod 23, the discharging push rod 27 and the blowing pipeline 28 are driven to move towards the rotary table 4, the reset push rod 23 pushes the rack 29 to move, the rack 29 drives the gear 30 to rotate, the gear 30 drives the top block 31 to move upwards, the top block 31 pushes the insert block 12 and the roller 13 to the outer side of the slot 501, the top rod 11 swings upwards to reset under the action of the torsion spring, and the top die 5 moves upwards to reset under the action of the elastic piece III 14. At the same time, the discharge push rod 27 pushes the support block 32 to move toward the center of the turntable 4, so that the support block 32 moves to the side of the punching passage 601.
Then the air outlet end of the air blowing pipeline 28 is inserted between the top die 5 and the bottom die 6 and moves to the upper part of the punching channel 601, the air outlet end of the air blowing pipeline 28 blows downwards, and the workpiece clamped in the punching channel 601 is blown into the discharging channel 602. And then the reset driving piece 22 drives the second connecting plate 7 to move back to drive the reset push rod 23 and the discharge push rod 27 to exit the discharge channel 602. After the reset push rod 23 is separated from the top die 5, the reset push rod moves downwards under the action of the elastic piece five 26, the supporting block 32 resets under the action of the elastic piece two 33 and pushes the workpiece to move along the discharging channel 602 towards the open end in the discharging channel 602, so that the gravity center of the workpiece moves to the outer side of the turntable 4. At this time, the workpiece is supported by the support platform 39 and does not fall from the turntable 4 temporarily, and at this time, the workpiece is not completely separated from the discharging channel 602, and the workpiece can be driven to synchronously rotate by the turntable 4 under the blocking of the side wall of the discharging channel 602. The turntable 4 continues to rotate for 90 degrees, the workpiece is driven to be separated from the supporting platform 39 in the rotation process, and the workpiece falls off from the turntable 4 under the action of dead weight at the moment, so that discharging is realized.
The die pressing assembly after reset and discharge is completed at the discharge station is rotated to the feed station along with the turntable 4, and the processing actions are continuously repeated.
According to the invention, the ejector rod 11 is used for clamping the top die 5 at the bottom limit position to keep pressure on the workpiece, so that the stamping process and the pressure keeping process can be carried out in different spaces, one brake pad can be stamped while the other brake pad is kept pressure, waiting is not needed during the pressure keeping process, time can be saved, and the production efficiency is effectively improved.
In this embodiment, the feeding mechanism includes a feeding box, and the feeding is achieved by injecting the material into the punching chamber 603 through the feeding box, in other embodiments, the feeding mechanism includes a conveying pipe and a conveying auger installed inside the conveying pipe, the conveying pipe and the conveying auger move between the top mold 5 and the bottom mold 6 after being separated from the top mold 5 and the bottom mold 6, and then the conveying auger is driven to rotate, so that the material falls into the punching chamber 603 from an outlet of the conveying pipe.
In this embodiment, the reset mechanism includes a reset push rod 23 and a top block 31, where the reset push rod 23 is in transmission connection with the top block 31 through a rack 29 and a gear 30 to drive the top block 31 to move upward to eject the insert block 12 out of the slot 501, and in other embodiments, the reset mechanism includes a reset push rod 23 and a slide block, where the slide block is slidably mounted on the bottom die 6 and located below the insert block 12, and the top of the slide block is provided with a pushing inclined plane, and the reset push rod 23 can push the slide block to move, so that the slide block pushes the insert block 12 upward through the pushing inclined plane, thereby ejecting the insert block 12 out of the slot 501.
Claims (6)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202510476180.9A CN119974641B (en) | 2025-04-16 | 2025-04-16 | Drum brake block stamping equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202510476180.9A CN119974641B (en) | 2025-04-16 | 2025-04-16 | Drum brake block stamping equipment |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110834437A (en) * | 2019-11-28 | 2020-02-25 | 湖北文理学院 | Full-automatic hot-pressing forming device for drum brake pad |
| CN117601491A (en) * | 2024-01-10 | 2024-02-27 | 浙江万赛汽车零部件股份有限公司 | Brake block automated processing equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3681331B2 (en) * | 2000-11-17 | 2005-08-10 | コータキ精機株式会社 | Powder molding press and method for feeding the molded powder |
| CN101298158B (en) * | 2008-04-18 | 2010-06-16 | 张翠兰 | Plant fibre pallet double-press pressing method and apparatus equipped with pressure maintaining device |
| CN216139461U (en) * | 2021-09-08 | 2022-03-29 | 浙江立琪机械有限公司 | Special hydraulic press of drum-type high accuracy brake block |
| CN218519020U (en) * | 2022-08-15 | 2023-02-24 | 南京德毅卓智能科技有限公司 | Mechanical pressure maintaining device of vulcanization mold |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110834437A (en) * | 2019-11-28 | 2020-02-25 | 湖北文理学院 | Full-automatic hot-pressing forming device for drum brake pad |
| CN117601491A (en) * | 2024-01-10 | 2024-02-27 | 浙江万赛汽车零部件股份有限公司 | Brake block automated processing equipment |
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