CN115283545A - Composite die - Google Patents

Abstract

The present application provides a composite mold. The lower die base includes a die base body, a transmission device and an upper turning die. The die base body includes a first accommodating space, and the first accommodating space includes a first opening and a second opening arranged on the upper surface of the die base body. The transmission device is provided with In the first accommodating space, the transmission device includes an input end and an output end, the input end is arranged corresponding to the first opening, the output end is arranged corresponding to the second opening, and the upturning die is arranged at the output end and passes through the second opening; the upper die The seat includes a second accommodating space, the first opening and the second opening are both located below the second accommodating space, the upper die seat includes a driving seat, and the driving seat is arranged corresponding to the input end along the vertical direction; the pressing material core is arranged on the second In the accommodating space, the pressing material core body can be slidably connected to the upper die seat, the pressing material core body includes an upward turning punch, the upward turning concave die is set corresponding to the upward turning punch, and the driving seat is used to drive the upward turning through a transmission device The whole die moves towards the upward turn over the punch.

Description

Composite mold

technical field

The application relates to the technical field of mechanical manufacturing stamping forming, in particular to a composite mold.

Background technique

With the development of the automobile industry, especially the rise of electric vehicles, people's demand for automobiles is gradually increasing, so it is particularly important to realize the production of automobiles. Automobile mold is the key equipment to complete the molding of auto parts and realize the mass production of automobiles. The processing method of automobile mold can improve the automation degree of automobile production industry.

Stamping die is a kind of automobile die, which is widely used in the automobile industry. Most of the parts in the car body, chassis and engineering machinery cab can be formed by stamping dies. The stamping die can use the die to apply pressure to the material to separate or plastically deform it, so as to obtain a part with a certain structure.

The stamping die can be designed as a composite die that can complete punching, trimming or turning. In the related art, the composite mold includes an upper mold base, a lower mold base and a pressing core. The pressing core is set on the upper mold base, which can complete the downward turning of the workpiece. The pressing core is set on the lower mold base, which can complete the upward turning of the workpiece.

In order to realize the punching, trimming and up-down turning of the workpiece at the same time, it is necessary to set the pressing core body on the upper mold base and the lower mold base respectively. However, due to the limited space for the structural arrangement of the composite mold. The upper mold holder and the lower mold holder often cannot both be provided with a binder core. Therefore, the workpiece needs to be turned up and down through different processes, resulting in a low integration of the composite mold, a reduction in the degree of automatic processing of automobiles, and a reduction in processing efficiency.

Contents of the invention

The present application provides a composite mold, which can solve the problem that the integration degree of the composite mold is not high, which leads to the reduction of the automatic processing degree and processing efficiency of the automobile.

The application provides a composite mold, which includes:

The lower mold base includes a mold base body, a transmission device and an upturning die, the mold base body includes a first accommodation space, the first accommodation space includes a first opening and a second opening arranged on the upper surface of the mold base body, and the transmission device Set in the first accommodation space, the transmission device includes an input end and an output end, the input end is set corresponding to the first opening, the output end is set corresponding to the second opening, and the upturning die is set at the output end and penetrates through the second opening;

The upper mold base includes a second accommodation space, the first opening and the second opening are located below the second accommodation space, the upper mold base includes a driving seat, and the driving seat is arranged corresponding to the input end along the vertical direction;

The pressing core is arranged in the second accommodation space, and the pressing core can be slidably connected to the upper mold seat. The pressing core includes an upturning punch, and the upturning die is set corresponding to the upturning punch. The seat is used to drive the upturning die to move towards the upturning punch through the transmission device.

In the composite mold provided by the present application, the pressing core body is only arranged on the upper mold base to realize the upward adjustment of the workpiece, without additional pressing core body on the lower mold base. Therefore, on the one hand, the cost of adding a pressing core can be saved. On the other hand, the structural space of the upper mold base and the lower mold base can be saved to arrange the process structure of trimming, punching and downward turning, so that the composite mold of the embodiment of the present application can realize trimming and punching of the workpiece , Up-turning and down-turning are conducive to improving the integration of composite molds, improving the degree of automatic processing of automobiles, and reducing the overall processing costs of automobiles.

According to an embodiment of the present application, the binder core further includes a body part, the body part is slidably connected to the upper die holder, and along the vertical direction, the upturning punch is arranged on the surface of the body part facing the lower die holder.

According to an embodiment of the present application, the transmission device is slidably connected with the mold base body.

According to an embodiment of the present application, the first accommodating space includes a vertical slideway, a horizontal slideway and an inclined slideway connected in sequence, the vertical slideway has a first opening, the inclined slideway has a second opening, and the transmission device includes The vertical drive slider, the horizontal slide base and the inclined slider are distributed in sequence, the vertical drive slider is located on the vertical slideway, the horizontal slide base is set on the horizontal slideway, the oblique slider is set on the inclined slideway, the vertical slideway The driving slider has an input end, and the inclined slider has an output end.

According to an embodiment of the present application, the vertical drive slider has a first sliding slope, the horizontal sliding base has a second sliding slope and a third sliding slope, the first sliding slope is slidingly matched with the second sliding slope, and the inclined sliding block has The fourth sliding slope, the third sliding slope is slidingly matched with the fourth sliding slope.

According to an embodiment of the present application, the transmission device further includes a reset assembly, which is connected to the horizontal sliding base, and the reset assembly is used to drive the vertical driving slider, the horizontal sliding base and the inclined slider to reset, so that the upturning The die moves away from the upturning punch.

According to an embodiment of the present application, the lower mold base further includes an adjustment pad, which is arranged at the input end, and along the vertical direction, the adjustment pad is arranged corresponding to the driving seat.

According to an embodiment of the present application, the pressing core includes an avoidance hole, the driving seat is passed through the avoidance hole, and the adjustment pad is arranged corresponding to the avoidance hole along the vertical direction.

According to one embodiment of the present application, the die holder body also includes a trimming punch and a lower turning punch, and the upper die holder also includes a trimming die and a lower turning die, and the trimming punch and the trimming die correspond to Setting, corresponding settings for the down-turning punch and down-turning die.

According to an embodiment of the present application, the upper mold base further includes an elastic element, which provides force for the pressing core.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description serve to explain the principles of the application.

Fig. 1 is the structural representation of the composite mold of an embodiment of the present application;

Fig. 2 is a top view structural schematic diagram of a composite mold according to an embodiment of the present application;

Fig. 3 is a schematic cross-sectional structure diagram along the A-A direction in Fig. 2;

Fig. 4 is the enlarged schematic diagram of place B in Fig. 3;

FIG. 5 is a schematic structural view of a lower mold base according to an embodiment of the present application;

Fig. 6 is the enlarged schematic diagram of place C in Fig. 5;

FIG. 7 is a schematic structural view of a pressing core according to an embodiment of the present application;

Fig. 8 is a schematic structural view of an upper mold base according to an embodiment of the present application;

FIG. 9 is an enlarged schematic view at point D in FIG. 8 .

Explanation of reference signs:

10. Composite mold;

100. Lower mold base;

110. Die base body;

111. The first accommodation space;

1111, vertical slideway; 1112, horizontal slideway; 1113, inclined slideway;

112. Trimming punch;

113. Turn the punch down;

114. Punching die;

120, transmission device; 120a, input end; 120b, output end;

121. Vertically driving the slider; 1211. The first sliding slope;

122. Horizontal sliding base;

1221, the second sliding slope; 1222, the third sliding slope;

123, inclined slider; 1231, the fourth sliding slope;

124. Reset component;

130. Upturning the die;

140. Adjust pads;

150. Lifting device;

160, guide post;

200, the upper mold base; 200a, the second accommodation space;

210, driving seat;

220, trimming die;

230, turn down and adjust the die;

240, punch;

250, elastic element;

260, guide sleeve;

300, pressing core body; 300a, escape hole;

310. Upturning the punch;

320. Body Department;

330, jacking pin;

400, side pin;

X, vertical direction.

By means of the above drawings, specific embodiments of the present application have been shown, which will be described in more detail hereinafter. These drawings and text descriptions are not intended to limit the scope of the concept of the application in any way, but to illustrate the concept of the application for those skilled in the art by referring to specific embodiments.

Detailed ways

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

The composite mold of the present application can be applied to the automobile manufacturing industry, and can also be applied to other machinery manufacturing industries. It is not limited in this application. Cars can be internal combustion engine cars and electric cars. Exemplarily, the vehicle of the present application may be an electric vehicle.

Automobiles include components made of a variety of sheet metal materials. In order to meet the needs of strength, function, shape and other aspects, the structure and shape of parts are more complicated. The cooperation between complex parts is the prerequisite to ensure the smooth installation of key parts of the car. Composite molds can perform various processes in punching, trimming and turning on the workpiece to obtain the required structure of the workpiece. Therefore, the use of composite mold processing can improve the processing accuracy of parts on the one hand, and improve the processing efficiency of parts on the other hand.

Automobiles include multiple components such as body, chassis and construction machinery cab. Some parts that make up the assembly can be processed and manufactured through composite molds to improve the processing efficiency of the car and reduce the processing cost. For example, components such as trunk lids, roof covers, front and rear floors, and doors can all be processed through composite molds.

Along the vertical direction, the composite mold includes an upper mold base and a lower mold base. The upper mold base and the lower mold base can be provided with working parts of various technological structures. The workpiece may be disposed between the upper die holder and the lower die holder. The upper mold base can move downward, so that the working parts of the upper mold base and the lower mold base can act on the workpiece, so as to obtain a workpiece with a certain structure and shape.

Punching can be a process of separating part of the material with a certain shape or structure on the workpiece. Working parts for the punching process can be arranged on the upper mold base and the lower mold base respectively. The upper die base moves downward, and the working parts of the punching process cooperate with each other to complete the punching process of the workpiece. For example, a composite die can punch out multiple circular hole structures on a workpiece.

Trimming can be a process of removing part of the material from the edge of the workpiece to obtain a workpiece of the desired structure. Working parts for the trimming process can be arranged on the upper mold base and the lower mold base respectively. The upper die base moves downward, and the working parts of the trimming process cooperate to complete the trimming process of the workpiece.

Rounding can be by turning the edge of the workpiece up or down. For example hemming. Composite molds that include a truing process usually need to be provided with a binder core. The pressing core body can be arranged on the upper mold base or the lower mold base. In the related art, when the pressing core body is arranged on the upper mold base, the upper mold base can move downward to realize the downward adjustment of the workpiece. When the pressing core is set on the lower mold base, the upper mold base can move downward to realize the upward adjustment of the workpiece.

When the pressing core body is arranged on the upper mold base, the upper mold base also needs to be provided with structures such as elastic elements, limit mechanisms, and guide elements. The elastic element can provide the workpiece with the pressing force or unloading force required for the working process through the pressing core. The limit mechanism can limit the maximum movement range of the pressing core. Guide elements can be used to control the movement trajectory of the binder core.

The arrangement of structures such as the elastic element, the limit mechanism, the guide element and the safety element needs to occupy a relatively large space. However, due to the limited structural layout space, the upper die base and the lower die base also need to be equipped with trimming, punching and trimming and other process contents, and the upper die base and the lower die base are usually not equipped with a binder core. The trimming, punching, up-turning and down-turning of the workpiece usually need to be carried out through different processes, resulting in a low level of integration of the composite mold, and a reduction in the degree of automation and processing efficiency of the car.

Based on the above problems, the applicant improved the composite mold 10, and the following further describes the embodiments of the present application.

Referring to FIGS. 1 to 9 , the composite mold 10 of the embodiment of the present application includes a lower mold base 100 , an upper mold base 200 and a pressing core 300 .

Referring to FIG. 3 to FIG. 6 , the lower mold base 100 includes a mold base body 110 , a transmission device 120 and an upper turning die 130 . The mold base body 110 includes a first receiving space 111 . The first receiving space 111 includes a first opening and a second opening disposed on the upper surface of the mold base body 110 . The transmission device 120 is disposed in the first accommodation space 111 . The transmission 120 includes an input 120a and an output 120b. The input end 120a is disposed corresponding to the first opening. The output end 120b is disposed corresponding to the second opening. The upturning die 130 is disposed at the output end 120b and passes through the second opening.

The upper mold base 200 includes a second accommodation space 200a. Both the first opening and the second opening are located below the second accommodation space 200a. The upper mold base 200 includes a driving base 210 . Along the vertical direction X, the driving seat 210 is disposed corresponding to the input end 120a.

The pressing core 300 is disposed in the second accommodation space 200a. The pressing core 300 is slidably connected to the upper mold base 200 . The pressing core 300 includes an upturning punch 310 . The upper turning die 130 is set corresponding to the upper turning punch 310 . The driving seat 210 is used to drive the upper turning die 130 to move towards the upper turning punch 310 through the transmission device 120 .

The upper mold base 200 can move along the vertical direction X. The upper mold base 200 is set corresponding to the lower mold base 100 . When the composite mold 10 is not working, there is a gap between the upper mold base 200 and the lower mold base 100 . When it is necessary to start the composite mold 10 to work, the workpiece can be placed on the lower mold base 100 at first. At this time, the upturning die 130 is located below the workpiece and is not in contact with the workpiece. During the downward movement of the upper mold base 200, the pressing core 300 located in the second accommodation space 200a also descends until it contacts the workpiece. The upper mold base 200 continues to move downward, so that the driving base 210 can abut against the input end 120 a of the transmission device 120 , so that the upper turning die 130 at the output end 120 b can move toward the workpiece. Therefore, the downward movement of the upper mold base 200 can drive the transmission device 120 to move, so that the upper turning die 130 connected with the transmission device 120 can exert a force on the workpiece, so that the workpiece can be turned on the upper turning die 130 and the upper turning die. Between the convex molds 310, upward adjustment is realized.

The pressing core body 300 of the embodiment of the present application is only provided on the upper mold base 200 to realize the upward turning of the workpiece, without additionally installing the pressing material core body 300 on the lower mold base 100 . Therefore, on the one hand, the cost of adding the pressing core 300 can be saved. On the other hand, the structural space of the upper mold base 200 and the lower mold base 100 can be saved to arrange the process structure of trimming, punching and downward turning, so that the composite mold 10 of the embodiment of the present application can realize the trimming of the workpiece , punching, up-turning and down-turning are conducive to improving the integration of the composite mold 10, improving the degree of automatic processing of automobiles, and reducing the overall processing cost of automobiles.

In some examples. The downward movement of the upper die base 200 can realize the upward turning of the workpiece through the transmission device 120 . The pressing core 300 can provide pressing force or unloading force for edge trimming, punching, upward and downward turning. During the process of workpiece trimming, punching, upward and downward turning, the binder core 300 acts on the workpiece all the time, so that the workpiece can be located between the binder core 300 and the lower die base 100 without easy movement Or deformation of the workpiece caused by movement.

In some practicable manners, as shown in FIG. 7 , the binder core 300 of the embodiment of the present application further includes a body part 320 . The main body part 320 is slidably connected to the upper mold base 200 . Along the vertical direction X, the upper turning punch 310 is disposed on the surface of the main body 320 facing the lower mold base 100 .

The upper turning punch 310 cooperates with the upper turning die 130 to act on the workpiece, so that an upward flanging can be formed on the workpiece. During the downward movement of the pressing core body 300 , the upturning punch 310 first contacts the upper surface of the workpiece and stops descending, while the upturning die 130 below the workpiece does not contact the workpiece. The upper mold base 200 moves downward, and the driving base 210 can exert a downward force on the input end 120 a of the transmission device 120 . The transmission device 120 transmits the force to the output end 120b, so that the upturning die 130 connected to the output end 120b can push the workpiece to the upturning punch 310 to form an upturning structure.

In some examples, as shown in FIG. 7 to FIG. 9 , the body part 320 can be hooked to the inner wall of the upper mold base 200 through the side pin 400 . The outer wall of the body part 320 may be provided with a card slot. The side pin 400 can pass through the side wall of the upper die base 200 and the slot of the main body part 320 from the outside of the upper die base 200, so that the main body part 320 can be connected with the upper die base 200 and slide in the upper die base 200 through the guide plate . It should be noted that the movement direction of the main body part 320 is the same as the vertical direction X. The movement direction of the main body part 320 may be the same as the movement direction of the upper mold base 200 .

In some examples, as shown in FIGS. 5 and 8 , the upper mold base 200 may include a guide sleeve 260 . The lower die set 100 may include guide posts 160 . The guide post 160 and the guide sleeve 260 are arranged correspondingly along the vertical direction X. At least a portion of the guide post 160 may be located inside the guide sleeve 260 . The guide post 160 can slide along the guide sleeve 260, thereby reducing the possibility that the upper mold base 200 is deflected in the downward direction and affects the processing accuracy of the workpiece.

In some practicable manners, as shown in FIG. 3 , the transmission device 120 of the embodiment of the present application is slidably connected to the mold base body 110 .

In some examples, the upper mold base 200 moves downward, and the driving base 210 can drive the transmission device 120 to slide in the first accommodation space 111 . When the upturning die 130 moves to act on the workpiece, the workpiece can be turned up. After finishing the upturning of the workpiece, the upturning die 130 can be reset.

In some practicable manners, as shown in FIG. 3 and FIG. 4 , the first accommodation space 111 of the embodiment of the present application includes a vertical slideway 1111 , a horizontal slideway 1112 and an inclined slideway 1113 which are sequentially connected. The vertical slideway 1111 has a first opening. The inclined slideway 1113 has a second opening. The transmission device 120 includes a vertical driving slider 121 , a horizontal sliding base 122 and an inclined slider 123 distributed in sequence. The vertical driving slider 121 is located on the vertical slideway 1111 . The horizontal slide base 122 is disposed on the horizontal slideway 1112 . The inclined slider 123 is disposed on the inclined slideway 1113 . The vertical drive slider 121 has an input end 120a. The inclined slide 123 has an output end 120b.

The upper mold base 200 moves downward, and the driving base 210 can abut against the vertical driving slider 121 . Vertically drive the slide block 121 to go down along the vertical slideway 1111 . The vertically driving slider 121 can drive the horizontal sliding base 122 to slide along the horizontal slideway 1112 toward the direction of the oblique slider 123 . The horizontal sliding base 122 can drive the inclined slider 123 to slide along the inclined slideway 1113 , so that the upturning die 130 can move relative to the second opening of the inclined slideway 1113 to act on the workpiece.

In some examples, the inclined slideway 1113 is located on the right side of the vertical slideway 1111 with reference to the orientation shown in FIG. 3 . The vertically driving slider 121 can drive the horizontal sliding base 122 to slide to the right, and the horizontal sliding base 122 can drive the oblique slider 123 to slide upward to the right, so as to realize the conversion of the force direction.

Therefore, the transmission device 120 of the embodiment of the present application has a simple structure, and the downward force of the upper mold base 200 can be transmitted to the upper mold base 200 only through the relative sliding between the vertically driven slider 121 , the horizontal sliding base 122 and the inclined slider 123 . Turning over the die 130, while converting the downward force into an oblique upward force, so that the upturning die 130 can act on the workpiece to form an upward flanging.

In some examples, the upturning die 130 may be disposed on the inclined slider 123 of the transmission device 120 . The inclined slider 123 can increase the movement path of the transmission device 120 , so that the transmission device 120 can drive the upturning die 130 to move so as to cooperate with the upturning punch 310 .

In some examples, the upturning die 130 may be connected to the inclined slide 123 through a locking member. Exemplarily, the locking member may be a bolt.

In some practicable manners, as shown in FIG. 4 , the vertically driving slider 121 has a first sliding slope 1211 . The horizontal sliding base 122 has a second sliding slope 1221 and a third sliding slope 1222 . The second sliding slope 1221 is adjacent to the third sliding slope 1222 . The first sliding slope 1211 is slidingly engaged with the second sliding slope 1221 . The inclined sliding block 123 has a fourth sliding inclined surface 1231 . The third sliding slope 1222 is slidingly engaged with the fourth sliding slope 1231 .

In some examples, referring to the direction shown in FIG. 3 , the upper mold base 200 moves downward, and the driving base 210 can drive the vertical driving slider 121 to move downward along the vertical slideway 1111 . First, the first sliding slope 1211 descends and abuts against the second sliding slope 1221 of the horizontal sliding base 122, so that the horizontal sliding base 122 can slide to the right along the horizontal slideway 1112, thereby pushing the driving seat 210 downward. The force is converted to a horizontal force to the right. At the same time, the third sliding slope 1222 of the horizontal sliding base 122 abuts against the fourth sliding slope 1231 of the inclined slider 123, so that the inclined sliding block 123 can slide obliquely upwards along the inclined slideway 1113, so that the horizontal sliding base 122 levels of active force are converted to oblique upward active force.

In some practicable manners, as shown in FIG. 4 , the transmission device 120 of the embodiment of the present application further includes a reset assembly 124 . The reset assembly 124 is connected with the horizontal sliding base 122 . The reset assembly 124 is used to drive the vertical driving slider 121 , the horizontal sliding base 122 and the inclined slider 123 to reset, so that the upturning die 130 moves away from the upturning punch 310 .

Referring to the direction shown in FIG. 3 , after the punching of the workpiece is completed, the upper mold base 200 moves upward, and the driving base 210 leaves the transmission device 120 . The driving seat 210 does not hinder the movement of the transmission device 120 . The reset assembly 124 can drive the horizontal sliding base 122 to slide leftward. The horizontal sliding base 122 drives the vertical driving slider 121 to move upward until reset. At the same time, the horizontal sliding base 122 no longer exerts force on the inclined slider 123 . The inclined slider 123 can slide down along the inclined slideway 1113 under the action of its own gravity, so that the upturning die 130 can gradually move away from the workpiece.

In some examples, as shown in FIG. 4 , the horizontal sliding base 122 may be provided with an inner cavity. A part of the reset assembly 124 may be located in the inner cavity, so as to save the inner space of the horizontal slideway 1112 .

In some examples, return assembly 124 may be a gas spring.

In some practicable manners, as shown in FIG. 3 , the lower mold base 100 of the embodiment of the present application further includes an adjustment pad 140 . The adjustment block 140 is disposed at the input end 120a. Along the vertical direction X, the adjustment block 140 is disposed corresponding to the driving seat 210 .

In some examples, the adjusting spacer 140 may protrude from the surface of the vertical driving slider 121 facing the upper mold base 200 . The adjustment block 140 can be connected to the vertical driving slider 121 through a locking piece. The driving seat 210 can abut against the upper surface of the adjustment cushion block 140 when it goes down. Since the downward displacement of the driving base 210 remains unchanged, the distance of the driving base 210 to the transmission device 120 can be changed by adjusting the height of the adjustment pad 140 protruding from the vertical driving slider 121 .

Since there are processing errors in the manufacturing process of the transmission device 120, the mold base body 110 and the upper mold base 200, the working distance of the driving seat 210 to the transmission device 120 can be adjusted by adjusting the height of the spacer 140, thereby The influence caused by the processing error is adjusted and corrected, and the difficulty of debugging the composite mold 10 is reduced. In addition, workpieces made of sheet metal have resilience. Therefore, the height of the vertical drive slider 121 protruding from the adjustment pad 140 can also be increased to increase the distance that the driving seat 210 moves down to the transmission device 120, thereby increasing the force of the upward turning die 130 on the workpiece. Or the angle of action, etc., thereby reducing the resilience of the workpiece and causing excessive shape and position deviation, which affects the possibility of assembly between the workpieces. It should be noted that the technological structure on the die base body 110 refers to the trimming punch 112 , the downturning punch 113 and the punching die 114 . The technical structure on the upper die base 200 refers to the trimming die 220 , the lower turning die 230 and the punch 240 .

In some examples, the adjusting block 140 may be connected to the vertical driving slider 121 through a locking member. Exemplarily, the locking member may be a screw.

In some practicable manners, as shown in FIG. 7 , the binder core 300 includes an avoidance hole 300a. The driving seat 210 passes through the escape hole 300a. Along the vertical direction X, the adjustment block 140 is arranged corresponding to the avoidance hole 300a.

During the downward movement of the upper mold base 200 , the driving base 210 can pass through the avoidance hole 300 a to abut against the adjustment pad 140 . In some examples, the cross-sectional shape of the adjustment block 140 matches the cross-sectional shape of the avoidance hole 300a. The cross-section may be a horizontal plane.

In some practicable manners, as shown in FIG. 5 and FIG. 6 , the mold holder body 110 further includes a trimming punch 112 and a downturning punch 113 . Referring to FIG. 8 and FIG. 9 , the upper mold base 200 also includes a trimming die 220 and a lower trimming die 230 . Trimming punch 112 and trimming die 220 and down-turning die 230 are arranged correspondingly. The lower turning punch 113 and the lower turning die 230 are correspondingly arranged.

Referring to the direction shown in FIG. 4 , the composite mold 10 starts to work, and the upper mold base 200 and the pressing core 300 descend until the pressing core 300 contacts the workpiece. The pressing core body 300 stops descending after contacting the workpiece. Upper die holder 200 continues to descend. The pressing core 300 can apply pressing force to the workpiece. The driving seat 210 can pass through the escape hole 300 a of the binder core 300 , so that the adjustment block 140 can drive the vertical driving slider 121 to slide downward. At the same time, the horizontal sliding base 122 slides to the right, and the inclined slider 123 slides to the upper right. The inclined slider 123 can drive the upturning die 130 to move upward and rightward, so that the upturning die 130 can gradually approach the upturning punch 310 . Now, because the upper die holder 200 continues to descend, the trimming die 220, the punch 240 and the lower turning die 230 on the upper die holder 200 also continue to descend, and can respectively move toward the trimming punch 112, The punching die 114 and the downturning punch 113 are gradually approached until the upper die holder 200 descends to the closed state to complete the punching process of the workpiece.

In some examples, in the closed state, the trimming die 220 and the trimming punch 112 may be in a clearance fit. The punch 240 and the punching die 114 may be a clearance fit. The up-turning punch 210 and the up-turning die 130 can be surface-fitting. The lower turning die 230 and the lower turning punch 113 can be surface-fitting.

In some examples, the trimming punch 112 may be a punch that integrates trimming and downturning as shown in FIG. 6 . That is to say, the trimming punch 112 of the present application has the trimming function of the trimming punch and also has the trimming function of the lower trimming punch. Exemplarily, the trimming punch 112 can cooperate with the trimming die 220 to complete the trimming of the workpiece, and can also cooperate with the down-turning die 230 to complete the down-turning of the workpiece. The structural form of the lower trimming die is not limited in this application, for example, the process content of the lower trimming die can be completed by piercing the pressing core 300 . Alternatively, the lower turning die can also be independently arranged on the upper die base 200 .

In some examples, the trimming die 220 and the down-turning die 230 can also be configured as a die that integrates trimming and down-turning. It is not shown in detail here.

In some practicable manners, as shown in FIG. 5 and FIG. 6 , the die holder body 110 further includes a punching die 114 . The upper die base 200 also includes a punch 240 . The punch 240 and the punching die 114 are arranged correspondingly. The workpiece may be positioned between the punch 240 and the punching die 114 to complete the punching of the workpiece.

Therefore, the composite mold 10 of the present application can simultaneously complete trimming, punching, up-turning and down-turning of the workpiece.

In some practicable manners, as shown in FIG. 8 and FIG. 9 , the upper mold base 200 further includes an elastic element 250 . The elastic element 250 acts on the pressing core 300 to provide pressing force or unloading force.

In the embodiment of the present application, when the upper mold base 200 moves downward, the transmission device 120 can provide an upward turning force for the workpiece. The elastic element 250 can act on the pressing core 300 to provide pressing force for trimming, punching and turning up and down. After the workpiece completes all the procedures, the upper mold base 200 moves upward, and the reset assembly 124 can drive the transmission device 120 and the upper turning die 130 to reset. When the upper mold base 200 continues to move upward, the elastic element 250 can also be gradually reset. During the reset process, the elastic element 250 can provide unloading force for the workpiece until the elastic element 250 is completely reset and then separated from the workpiece. At this time, the elastic element 250 no longer acts on the binder core 300 . The upper mold base 200 drives the pressing core body 300 upward to reset through the side pin 400 .

In some examples, die core 300 may include ejector pins 330 . The lower die base 100 may include a lifting device 150 . The lifting device 150 is disposed on the lower mold base 100 . When the pressing core 300 moves upward, the ejector pin 330 can act on the workpiece to separate the pressing core 300 from the workpiece. After the pressing core 300 is away from the workpiece by a certain distance, the lifting device 150 can lift the processed workpiece to facilitate the transfer of the workpiece.

In some examples, the elastic element 250 may be a nitrogen gas spring or an air cylinder or the like. The lifting device 150 may include lifting blocks, guide rods, cylinders and the like.

In some examples, the number of ejector pins 330 may be multiple. A plurality of ejector pins 330 can be evenly distributed on the surface of the die holder 100 of the die holder 300 to provide uniform ejector force to the workpiece. Exemplarily, the number of ejector pins 330 may be four.

In the description of the embodiments of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a An indirect connection through an intermediary may be an internal communication between two elements or an interaction relationship between two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in the embodiments of the present application according to specific situations.

The devices or components referred to in the embodiments of the present application must have specific orientations, be constructed and operated in specific orientations, and therefore should not be construed as limiting the embodiments of the present application. In the description of the embodiments of the present application, "plurality" means two or more, unless otherwise specifically specified.

The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the embodiments of the present application and the above drawings are used to distinguish similar objects, while It is not necessarily used to describe a particular order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein, for example, can be practiced in sequences other than those illustrated or described herein.

Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

The term "plurality" herein means two or more. The term "and/or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B can mean: A exists alone, A and B exist simultaneously, and there exists alone B these three situations. In addition, the character "/" in this paper generally indicates that the contextual objects are an "or" relationship; in the formula, the character "/" indicates that the contextual objects are a "division" relationship.

It can be understood that the various numbers involved in the embodiments of the present application are only for convenience of description, and are not used to limit the scope of the embodiments of the present application.

It can be understood that, in the embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the order of execution, and the order of execution of the processes should be determined by their functions and internal logic, and should not be used in the implementation of this application. The implementation of the examples constitutes no limitation.

Claims (10)

1. A composite mold, characterized in that, comprising: The lower mold base includes a mold base body, a transmission device and an upper turning die, the mold base body includes a first accommodation space, and the first accommodation space includes a first opening and a first opening on the upper surface of the mold base body. The second opening, the transmission device is disposed in the first accommodation space, the transmission device includes an input end and an output end, the input end is disposed corresponding to the first opening, and the output end is corresponding to the second opening Setting, the upper turning die is arranged at the output end and penetrates through the second opening; The upper mold base includes a second accommodation space, the first opening and the second opening are located below the second accommodation space, the upper mold base includes a driving seat, and along the vertical direction, the driving seat Corresponding to the input terminal setting; The pressing core is arranged in the second accommodation space, the pressing core can be slidably connected to the upper mold seat, the pressing core includes an upturning punch, and the upturning concave A die is set corresponding to the up-turning punch, and the driving seat is used to drive the up-turning die to move toward the up-turning punch through the transmission device. 2. The composite mold according to claim 1, wherein the binder core further comprises a body portion, the body portion is slidably connected to the upper mold base, and along the vertical direction, the The upper turning punch is arranged on the surface of the main body facing the lower mold seat. 3. The composite mold according to claim 1, wherein the transmission device is slidably connected to the mold base body. 4. The composite mold according to claim 3, wherein the first accommodating space comprises a vertical slideway, a horizontal slideway and an inclined slideway connected in sequence, and the vertical slideway has the first One opening, the inclined slideway has the second opening, the transmission device includes a vertical driving slider, a horizontal sliding base and an inclined slider distributed in sequence, the vertical driving slider is located on the vertical slideway, the horizontal slide base is set on the horizontal slideway, the inclined slide block is set on the inclined slideway, the vertical driving slide block has the input end, and the inclined slide block has the the output terminal. 5. The composite mold according to claim 4, wherein the vertical drive slider has a first sliding slope, the horizontal sliding base has a second sliding slope and a third sliding slope, the first The sliding slope is slidingly matched with the second sliding slope, the inclined slider has a fourth sliding slope, and the third sliding slope is slidingly fitted with the fourth sliding slope. 6. The composite mold according to claim 4, wherein the transmission device further comprises a reset assembly, the reset assembly is connected with the horizontal slide base, and the reset assembly is used to drive the vertical drive The slide block, the horizontal slide base and the inclined slide block are reset so that the up-turning die moves away from the up-turning punch. 7. The composite mold according to claim 1, wherein the lower mold base further comprises an adjustment pad, the adjustment pad is arranged at the input end, and along the vertical direction, the adjustment pad Blocks are set corresponding to the drive seat. 8 . The composite mold according to claim 7 , wherein the binder core includes an avoidance hole, the driving seat is penetrated through the avoidance hole, and along the vertical direction, the adjustment pad Corresponding to the setting of the avoidance hole. 9. The composite mold according to claim 1, wherein the mold holder body also includes a trimming punch and a lower turning punch, and the upper mold holder also includes a trimming die and a lower turning punch. die, the trimming punch and the trimming die are set correspondingly, and the lower turning punch and the lower turning die are set correspondingly. 10 . The composite mold according to claim 1 , wherein the upper mold base further comprises an elastic element, and the elastic element provides force for the pressing core. 11 .

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