TWI820553B - Quick die change system and method for stamping press - Google Patents

Abstract

A quick die change system and method for a stamping press, which is suitable for automatic stamping equipment. The automatic stamping equipment also includes a stamping press system. The stamping press system includes a roller feeder, a mold, and a mold taking device. The automatic stamping equipment is used to automatically stamping the stamping press system. Production, the quick die change system of the stamping press includes: the bed, which is set in the stamping press system; the sensor is used to sense the die when the die is located in the die positioning area, and generate a clamping signal; the die lifter is used to lift the die To fix the die; the die clamp is used to clamp the die through the die clamp to fix the die; and the control unit, which is electrically connected to the sensor, the die lifter and the die clamp, controls and integrates the die lift according to the clamping signal And the clamping device are activated to complete the quick die change operation of the stamping press machine for the continuous production operation of the automatic stamping production line.

Description

Stamping machine rapid die change system and method

The present invention relates to a stamping machine rapid mold change system and a method thereof. In particular, it relates to a stamping machine rapid mold change system and method suitable for automatic production equipment, which uses a robot arm to automatically remove and change molds for continuous production.

Mold is the basic manufacturing equipment for industrial mass production and is known as the "Mother of Industry". The application range of molds is very wide, involving various industries such as machinery, automobiles, aerospace, electronics, chemicals, metallurgy, and building materials. With the rapid development of science and technology, the global industry is developing in the direction of intelligence, such as artificial intelligence, machine learning, the Internet of Things, virtual and real integration, etc., causing the production line to transform from a single product and labor-intensive production line in the early days. Diversified and unmanned production lines, the same mold industry must also meet such production characteristics, so smart molds are born in response. In addition to the mold industry, related manufacturing industries are also developing in the direction of automation and intelligence.

The automated stamping production line is a large-scale, complex system composed of a variety of highly automated equipment and multiple links. In order to allow it to fully utilize its maximum production capacity, the automatic production line needs to be reasonably planned and laid out during the design process. However, today’s stamping automated production lines have no One of the key factors in achieving unmanned stamping is that after the production of a single product is completed, the machine needs to be stopped manually to change the mold to produce another product. After the mold change is completed, the feeding and mold adjustment production are restarted. Therefore, how to quickly change the mold to avoid The use of manual mold changing to enhance the advantages of automated stamping production lines is a major problem that urgently needs to be solved.

The object of the present invention is to provide a rapid mold changing system and method for a stamping machine. The automatic mold changing equipment of the automated stamping production line is used to automatically obtain the required mold from the mold storage area through a robot arm, automatically change the mold and set the relevant parameters. The automated stamping production line continues production operations.

In order to achieve the above object, the present invention provides a stamping machine rapid die change system, which is suitable for an automatic stamping equipment. The automatic stamping equipment also includes a punch system. The punch system includes a roller feeder, a mold, a punch, and a punch. Mold taking device, the automatic stamping equipment is used to perform automatic stamping production on the punch system. The rapid mold change system of the stamping machine includes: a bed, arranged in the punch system; a sensor, arranged on the bed , used to sense when the mold is located in a mold positioning area and generate a mold clamping signal; a mold lifter is provided on the bed, and is lifted and lowered by the mold lifter to move the mold; a mold clamper is provided On the bed, the mold is clamped through the mold clamp to fix the mold; and a control unit is electrically connected to the sensor, the mold lifter and the mold clamp, and based on the clamping signal , control and integrate the actions of the die lifter and the die clamp to complete the rapid die change operation of the stamping machine.

In some embodiments, the mold removal device is used to obtain a mold carrier placed in a mold storage area and loaded with the mold. The mold has at least one marking structure. The mold device includes: a proximity identification switch, which is installed at one end of the mold storage area to identify the mark structure to confirm an identity information of the mold; a transfer platform for loading the mold carrier in the mold storage area The transfer platform further includes: a mold taking arm, through which the mold carrier is pulled and slid on a plane; a proximity positioning switch, when the mold carrier is placed in a positioning area when a positioning signal is generated; a fixing pin, based on the positioning signal, the mold carrier is fixed to the transfer platform through the fixing pin; and a linear slide rail is matched with a motor to move the mold carrier in a linear direction Move.

In some embodiments, the mold carrier includes: two first through holes, which are provided on one side of the mold carrier, so that the mold taking arm can pull out or push the mold carrier into the mold carrier through the two first through holes. Mold storage area; two fixing pin through holes are arranged on one side of the mold carrier parallel to the two first through holes, so that the fixing pin is inserted into the two fixing pin through holes to fix the mold carrier during movement. ; Two U-shaped fixing devices are respectively provided on both sides of the two first through holes to engage the mold carrier with the mold clamp; and two second through holes are provided on the other side of the mold carrier to enable The mold taking arm pulls out or pushes the mold carrier into the bed through the two second through holes.

In some embodiments, the bed platform, the mold storage area, and the transfer platform are located at the same horizontal position.

In some embodiments, the mold may be a silicon steel sheet mold.

In some embodiments, the mold further includes an upper mold structure, a lower mold structure, and a press plate structure.

In some embodiments, the marking structure is used to confirm the identity information of the mold through a first identification pin and a second identification pin provided on the mold, including no identification pin and only the first identification pin. , only setting the second identification pin, and setting both the first identification pin and the second identification pin.

In some embodiments, the identity information further includes a stamping parameter of the mold, such as mold closing height, stamping speed, feeding distance and speed, and other parameters.

In some embodiments, the mold-taking arm has two mold-taking pins with the same diameter as the first through hole and the second through hole, for inserting into the first through hole and the second through hole to pull out the The mold carrier slides on this plane.

In some embodiments, the U-shaped fixing device may be a U-shaped pressing plate or a U-shaped groove.

The present invention also proposes a method for rapid mold change of a stamping machine. Through the above-mentioned rapid mold change system of a stamping machine, the method includes: moving a mold taking device to a mold storage area through a control unit according to a production signal; through the mold taking device A mold-taking arm pulls the mold carrier along a linear slide rail through two first through holes; identifies a mold loaded on the mold carrier as a target mold through a proximity identification switch; pulls the mold carrier to A positioning area of the mold taking device generates a positioning signal through a proximity positioning switch; the control unit makes a fixing pin in the mold carrier rise to two fixing pin through holes according to the positioning signal to fix the mold. The carrier is equipped with a linear slide rail and a motor to move the mold carrier in a linear direction to a punch press; the mold taking arm pulls the mold carrier along the linear slide rail to a punch press through two second through holes. through a sensor on the bed, when it senses that the mold is located in a mold positioning area, a mold clamping signal is generated; and through the control unit, the mold lifter is lowered according to the mold clamping signal, causing the mold to be positioned On the bed, a mold clamp is lowered to fix the two U-shaped fixing devices on the mold carrier, and the feed production is started.

In some embodiments, the U-shaped fixing device may be a U-shaped pressing plate or a U-shaped groove.

The rapid mold changing system and method of the stamping machine of the present invention have at least the following characteristics: when the production project needs to be changed, the required mold is automatically obtained from the mold storage area through the mold taking arm, and the identity of the mold and various stamping parameter settings are identified through the proximity switch. After that, the mold is automatically installed on the stamping machine for production, avoiding the decrease in production efficiency and safety problems caused by manual mold changing during continuous production, so as to achieve the highest safety and efficiency of the automated stamping production line.

100: Stamping machine quick die change system

110:Bed platform

120: Sensor

130:Die lifter

140:Mold clamp

210: Mold taking system

211:Mold arm

212: Proximity positioning switch

213: Fixed pin

214:Linear slide rail

310:Mold carrier

311: First through hole

312: Fixed pin through hole

313:U-shaped fixture

314: Second through hole

320:Mold

321: Upper mold structure

322: Lower mold structure

323: Pressing plate structure

324: mark structure

510:Mold storage area

S510~S590: step process

Figure 1 is a schematic diagram of a rapid die change system of a stamping press according to an embodiment of the present invention;

Figure 2 is a schematic diagram of the mold taking system of the rapid mold changing system of a stamping machine according to an embodiment of the present invention;

Figure 3 is a schematic diagram of the mold carrier of the rapid mold change method of a stamping machine according to an embodiment of the present invention;

Figure 4 is a schematic diagram of a mold of a stamping machine rapid mold change method according to an embodiment of the present invention;

Figure 5 is a flow chart of the mold removal and mold change steps of the rapid mold change system of a stamping machine according to an embodiment of the present invention.

The embodiments of the present invention are described in detail below with reference to the drawings. The accompanying drawings are mainly simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner. Therefore, only elements related to the present invention are marked in these drawings. , and the components shown are not drawn based on the number, shape, size ratio, etc. of the actual implementation. The actual implementation specifications and sizes are actually a selective design, and the component layout may be more complex.

The following description of the embodiments refers to the accompanying drawings to illustrate specific embodiments in which the invention may be practiced. Directional terms mentioned in this invention, such as "up", "Bottom", "front", "rear", "left", "right", "inside", "outside", "side", etc. are only for reference to the directions in the attached drawings. Therefore, the directional terms used are used to explain and understand the present application, rather than to limit the present application. Additionally, in the specification, unless expressly described to the contrary, the word "comprising" will be understood to mean the inclusion of stated elements but not the exclusion of any other elements.

Figure 1 is a schematic diagram of a rapid die change system of a stamping machine according to an embodiment of the present invention. Referring to Figure 1, the stamping machine quick die change system 100 is suitable for an automatic stamping equipment. The automatic stamping equipment also includes a punch system. The punch system includes a roller feeder, a mold, a punch, and a take-out machine. The automatic stamping equipment is used to perform automatic stamping production on the punch system. The stamping machine rapid die change system 100 includes: a bed 110, which is arranged in the punch system; a sensor 120, which is arranged on the bed. On the bed 110, it is used to sense when the mold is located in a mold positioning area and generate a mold clamping signal; a mold lifter 130 is provided on the bed 110, and is lifted and lowered by the mold lifter 130 to push up the mold. The mold makes it easy to move; a mold clamp 140 is installed on the bed 110, and the mold is clamped through the mold clamp 140 to fix the mold; and a control unit (not shown) is electrically connected The sensor 120, the die lifter 130 and the die clamper 140 control and integrate the actions of the die lifter 130 and the die clamper 140 according to the clamping signal to complete the rapid die change operation of the stamping machine.

Among them, the stamping system also includes a servo stamping machine, which is a crank slider stamping machine. It can be adjusted according to different stamping forming methods, and can improve its efficiency and production speed compared with traditional punching machines. The rigid structure of its body is also relatively stable. Providing high-precision stamping production, which can effectively improve the accuracy of finished products and improve production efficiency.

In this embodiment of the stamping machine quick mold changing system, the mold can be a silicon steel sheet mold. Tool.

Among them, the silicon steel sheet mold weighs about 35 kilograms.

Among them, the silicon steel sheet mold is a multi-pass continuous mold.

In some embodiments, the mold further includes an upper mold structure, a lower mold structure, and a pressing plate structure.

Among them, the upper die structure further includes an upper die plate, a punch back plate, a punch fix plate, punches at each work station, and scrap cutters. Components such as scraping cutter, locating pin, screw, spring and guide post.

Among them, the punch is locked to the upper mold with screws and positioned through the punch fixing plate. A waste cutter is also designed to avoid excessive waste during the production process.

Among them, the lower die structure further includes a cavity plate, a cavity back plate, a lower die plate, a lower locating bed, and various workstation sub- (insert), bushing (bushing), guide lifter punch (guide lifter punch), pressure plate (press plate), spring (spring), locating pin (locating pin), screw (screw) and other components.

Among them, the holder plate structure further includes a holder plate, a holder back plate, a contour screw, a locating pin, a screw and a guide punch. Head (locating punch) and other components.

Among them, the height screws are used to move the upper mold, and the spring is used to provide the force to remove the material. The design of the guide punch is introduced to ensure that the relative position between the material belt and the mold is correct during the conveying process.

In some embodiments, the mold further includes a spring design to provide lifting pin force, Keep the material belt at the required height during feeding.

In some embodiments, the mold lifter is a hydraulic mold lifter.

Compared with the traditional manual movement of molds on the bed, direct contact with the bed not only increases the difficulty of movement, but may also cause damage to the mold and the bed. In addition, for extremely heavy molds, more manpower is required. To move the mold, labor costs are increased. The mold lifter can adapt to molds of different weights, and because of its roller design, the mold contact area changes from the original surface contact to line contact, which greatly reduces friction.

Among them, the total length of the mold lifter is 400 mm.

Among them, the mold lifting capacity of the mold lifter is 300 kg.

In some embodiments, the mold clamp is designed with a U-shaped fixing device of the mold carrier to quickly lock the mold.

The U-shaped fixing device can be a U-shaped pressing plate or a U-shaped groove.

Among them, when the hydraulic pressure is 250 kilograms per square centimeter, the clamping force is 1 ton.

FIG. 2 is a schematic diagram of the mold-taking system of the rapid mold-changing system of a stamping machine according to an embodiment of the present invention. Referring to Figure 2, the mold taking system 210 is used to obtain a mold carrier 310 placed in a mold storage area 510 and loaded with the mold 320. The mold 320 has at least one marking structure, including: a mold taking The arm 211 pulls the mold carrier 310 to slide on a plane through the mold-taking arm 211; a proximity positioning switch 212 generates a positioning signal when the mold carrier 310 is placed in a positioning area; a fixing pin 213, According to the positioning signal, the mold carrier 310 is fixed through the fixing pin 213; and a linear slide rail 214 is used with a motor to move the mold carrier 310 in a linear direction.

In some embodiments, the marking structure is used to confirm the identity information of the mold through a first identification pin and a second identification pin provided on the mold, including no identification pin and only the first identification pin. , only the second identification pin is provided, and the first identification pin and the second identification pin are provided simultaneously.

Among them, the identity information further includes a stamping parameter of the mold, such as mold clamping height, stamping speed, feeding distance and speed, and other parameters.

3 is a schematic diagram of a mold carrier of a rapid mold change method for a stamping machine according to an embodiment of the present invention. Referring to Figure 3, the mold carrier 310 includes: two first through holes 311, which are provided on one side of the mold carrier 310, so that the mold taking arm can pull the mold carrier 310 through the two first through holes 311. out or pushed into the mold storage area; two fixing pin through holes 312 are arranged parallel to the two first through holes 311 on one side of the mold carrier 310, so that the fixing pin is inserted into the two fixing pin through holes 312 for The mold carrier 310 is fixed during the movement; two U-shaped fixing devices 313 are respectively provided on both sides of the two first through holes 311 to engage the mold carrier 310 with the mold clamp; and two second through holes The hole 314 is provided on the other side of the mold carrier 310 so that the mold taking arm can pull out or push the mold carrier 310 into the bed through the two second through holes 314 .

In some embodiments, the first through hole is used by the mold-taking arm to pull out the mold when it takes out the carrier from the storage system, and the proximity switch is used to determine whether the mold has reached the correct position.

In some embodiments, the fixing pin through hole is used to prevent the mold from sliding or rotating during the transportation of the mold taking system, which may cause problems with the mold taking arm during the operation instructions. Therefore, this hole is designed to fix the mold loader. Useful.

In some embodiments, the second through hole is provided for the mold taking arm to push the mold into the punching machine. According to the hole, a fixing pin with the same diameter is installed on the mold-taking arm, which will be inserted into the second through hole. At this time, the mold-taking system will move to the punching machine and push the mold in.

Wherein, the U-shaped fixing device can be a U-shaped pressing plate or a U-shaped groove

FIG. 4 is a schematic diagram of a mold of a stamping machine rapid mold change method according to an embodiment of the present invention. Please refer to FIG. 4 , the mold 320 further includes an upper mold structure 321 , a lower mold structure 322 , a pressing plate structure 323 , and a marking structure 324 .

Among them, the upper die structure further includes an upper die plate, a punch back plate, a punch fix plate, punches at each work station, and scrap cutters. Components such as scraping cutter, locating pin, screw, spring and guide post.

Among them, the punch is locked to the upper mold with screws and positioned through the punch fixing plate. A waste cutter is also designed to avoid excessive waste during the production process.

Among them, the lower die structure further includes a cavity plate, a cavity back plate, a lower die plate, a lower locating bed, and various workstation sub- (insert), bushing (bushing), guide lifter punch (guide lifter punch), pressure plate (press plate), spring (spring), locating pin (locating pin), screw (screw) and other components.

Among them, the holder plate structure further includes a holder plate, a holder back plate, a contour screw, a locating pin, a screw and a guide punch. Head (locating punch) and other components.

Among them, the height screws are used to move the upper mold, and the spring is used to provide the force to remove the material. The design of the guide punch is introduced to ensure that the relative position between the material belt and the mold is correct during the conveying process.

In some embodiments, the mold further includes a spring design to provide lifting pin force to maintain the required height of the material strip during the feeding process.

In some embodiments, the marking structure is used to confirm the identity information of the mold through a first identification pin and a second identification pin provided on the mold, including no identification pin and only the first identification pin. , only the second identification pin is provided, and the first identification pin and the second identification pin are provided simultaneously.

Among them, the identity information further includes a stamping parameter of the mold, such as mold clamping height, stamping speed, feeding distance and speed, and other parameters.

Figure 5 is a flow chart of the mold removal and mold change steps of the rapid mold change system of a stamping machine according to an embodiment of the present invention. The step flow is as follows:

Step S510: The control unit moves the mold taking device to the mold storage area according to the production signal.

Step S520: Identify the mold loaded on the mold carrier as the target mold through the proximity identification switch .

Step S530: Pull the mold carrier along the linear slide rail through the first through hole through the mold taking arm of the mold taking device .

Step S540: Pull the mold carrier to the positioning area of the mold taking device, and generate a positioning signal through the proximity positioning switch.

Step S550: The control unit raises the fixing pin in the mold carrier to the fixing pin through hole according to the positioning signal to fix the mold carrier.

Step S560: Use the linear slide rail and the motor to move the mold taking device to the punch press.

Step S570: Use the mold taking arm to pull the mold carrier along the linear slide rail through the second through hole. bed platform.

Step S580: Using the sensor on the bed, it is sensed that when the mold is located in the mold positioning area, a mold clamping signal is generated.

Step S590: The control unit lowers the mold lifter according to the clamping signal, causing the mold to be placed on the bed, and then lowers the mold clamp to fix the U-shaped fixture on the mold carrier, and starts feeding production.

Wherein, the U-shaped fixing device can be a U-shaped pressing plate or a U-shaped groove

To sum up, this stamping machine rapid mold change system and its method have at least the following characteristics: when the production project needs to be changed, the mold taking arm automatically obtains the required mold from the mold storage area, and the proximity switch is used to identify the mold identity and various After the stamping parameters are set, the mold is automatically installed on the stamping machine for production, avoiding the decrease in production efficiency and safety issues caused by manual mold changing during continuous production, so as to achieve the highest safety and efficiency of the automated stamping production line.

The above-disclosed embodiments are only illustrative of the principles, characteristics and effects of the present invention, and are not intended to limit the scope of the present invention. Anyone skilled in the art can implement the invention without violating the spirit and scope of the present invention. Modifications and changes are made to the above embodiments. Any equivalent changes and modifications accomplished by applying the contents disclosed in the present invention shall still be covered by the following patent application scope.

100: Stamping machine quick die change system

110:Bed platform

120: Sensor

130:Die lifter

140:Mold clamp

Claims (9)

A rapid die-changing system for a stamping machine, suitable for an automatic stamping equipment. The automatic stamping equipment also includes a punch system. The punch system includes a roller feeder, a mold, a punch, and a mold removal device. The automatic stamping equipment Used to perform automatic stamping production on the punching machine system. The stamping machine rapid mold changing system includes: a bed, which is arranged in the punching system; a sensor, which is arranged on the bed and is used to sense where the mold is located. When a mold is positioned in an area, a mold clamping signal is generated; a mold lifter is installed on the bed, and is lifted and lowered by the mold lifter to move the mold; a mold clamper is installed on the bed, and is used to move the mold through the mold lifter. The clamp clamps the mold to fix the mold; and a control unit is electrically connected to the sensor, the mold lifter and the mold clamp, and controls and integrates the mold lifter according to the clamping signal. And the mold clamp is activated to complete the rapid mold change operation of the stamping machine; wherein the mold taking device is used to obtain a mold carrier placed in a mold storage area and loaded with the mold, and the mold has at least one marking structure , the mold taking device includes: a proximity identification switch, which is set at one end of the mold storage area to identify the mark structure to confirm an identity information of the mold; a transfer platform for loading the mold carrier The mold storage area is moved to the punch press, and the transfer platform further includes: a mold taking arm, through which the mold carrier is pulled to slide on a plane; a proximity positioning switch, when the mold carrier is placed on When a positioning area is reached, a positioning signal is generated; a fixing pin is used to fix the mold carrier to the moving position according to the positioning signal. A loading platform; and a linear slide rail, coupled with a motor, to move the mold carrier in a linear direction. As claimed in claim 1, the rapid mold change system of the stamping machine, wherein the mold carrier includes: two first through holes, which are provided on one side of the mold carrier so that the mold taking arm can pass through the two first through holes. The mold carrier is pulled out or pushed into the mold storage area; two fixing pin through holes are arranged on one side of the mold carrier parallel to the two first through holes, so that the fixing pin is inserted into the two fixing pin through holes. The mold carrier is fixed during the movement; two U-shaped fixing devices are respectively provided on both sides of the two first through holes to engage the mold carrier with the mold clamp. The U-shaped fixing device can be a A U-shaped pressing plate or a U-shaped groove; and two second through holes, which are provided on the other side of the mold carrier, so that the mold taking arm can pull out or push the mold carrier into the bed through the two second through holes. tower. The rapid mold change system for a stamping machine as described in claim 1, wherein the bed, the mold storage area and the transfer platform are located at the same horizontal position. The rapid mold changing system for a stamping machine as described in claim 1, wherein the mold is a continuous mold. As claimed in claim 1, the rapid mold change system of a stamping machine further includes an upper mold structure, a lower mold structure, and a pressing plate structure. The stamping machine quick mold change system as described in claim 1, wherein the marking structure is used to confirm the identity information of the mold through a first identification pin and a second identification pin provided on the mold, including no identification provided. pin, only the first identification pin is provided, only the second identification pin is provided, and the first identification pin and the second identification pin are provided simultaneously. For the stamping machine rapid mold change system described in claim 1, the factor information further includes a stamping parameter of the mold, such as mold clamping height, stamping speed, feeding distance and speed, and other parameters. The rapid die change system for a stamping machine as described in claim 2, wherein the die taking arm has a Two mold-taking pins with the same diameter as the through hole and the second through hole are used to insert into the first through hole and the second through hole to pull the mold carrier and slide on the plane. A method for rapid mold change of a stamping machine, through the rapid mold change system of a stamping machine as claimed in claim 1-2, which includes: moving a mold taking device to a mold storage area through a control unit according to a production signal; through a proximity recognition The switch identifies a mold loaded on a mold carrier as the target mold; pulls the mold carrier along a linear slide rail through a mold taking arm of the mold taking device through two first through holes; pulls the mold carrier to A positioning area of the mold taking device generates a positioning signal through a proximity positioning switch; the control unit makes a fixing pin in the mold carrier rise to two fixing pin through holes according to the positioning signal to fix the mold. The carrier is equipped with a motor through the linear slide rail to move the mold carrier in a linear direction to a punch press; the mold taking arm pulls the mold carrier along the linear slide rail to a punch press through two second through holes. through a sensor on the bed, when it senses that the mold is located in a mold positioning area, a mold clamping signal is generated; and through the control unit, the mold lifter is lowered according to the mold clamping signal, causing the mold to be positioned On the bed, a mold clamp is lowered to fix the two U-shaped fixing devices on the mold carrier, and the feed production is started.

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