CN218532513U - Punching and bending die for excavator shell - Google Patents

Abstract

The utility model discloses a punching and bending mold for an excavator casing, relates to the field of mold design, and comprises a bottom mold, four corners of the top of the bottom mold are provided with sliding surfaces, and the top of the sliding surface is provided with sliding surfaces. There is a T-shaped chute, the inner wall of the T-shaped chute is slidably installed with a T-shaped block, and the top of the T-shaped block is equipped with a slide block. In the utility model, the slider moves along the T-shaped chute under the force of the stamping assembly until the top plane of the slider coincides with the top plane of the bottom mold, and the slider and the bottom mold form the shape to be formed by the metal plate. Under the force of the stamping component, the rectangular metal plate is bent into the desired shape, and then the stamping component cancels the external force, and the ejector component is used to push the slider upward, and the four sliders are close to each other, so that the formed metal plate is separated. Bottom mold, make its surrounding inner wall not be in contact with the outer side wall of slide block at the same time, can not form shell like this and be stuck on the mould.

Description

A punching and bending die for an excavator shell

technical field

The utility model relates to the field of mold design, in particular to a punching and bending mold for an excavator shell.

Background technique

Molds, various molds and tools used in industrial production for injection molding, blow molding, extrusion, die-casting or forging forming, smelting, stamping, etc. to obtain the required products, in short, molds are tools used to make shaped objects , this kind of tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the shape of the object through the change of the physical state of the formed material. It is known as the "mother of industry". It is a tool for making blanks into workpieces with specific shapes and sizes. It is widely used in blanking, die forging, cold heading, extrusion, powder metallurgy parts pressing, pressure casting, and compression molding or molding of engineering plastics, rubber, ceramics and other products. In the forming process of injection molding, the mold has a specific contour or cavity shape, and the application of the contour shape with a cutting edge can separate the blank according to the contour line shape (punching).

In the prior art, the general excavator casing uses punching and bending dies. When the formed casing of the excavator is stuck on the mold, workers often need to use related tools to pry into the casing, which is laborious and easy. Destroy the excavator shell with a punching and bending die.

Utility model content

The purpose of this application is to provide a punching and bending die for an excavator shell to solve the problems raised in the above-mentioned background technology. The principle of sliding block demoulding is adopted to make the formed shell easy to fall off from the die.

In order to achieve the above object, the application provides the following technical solutions: a punching and bending mold for an excavator shell, including a bottom mold, sliding surfaces are provided at the four corners at the top of the bottom mold, and sliding surfaces are provided on the top of the sliding surface. There is a T-shaped chute, the inner wall of the T-shaped chute is slidingly installed with a T-shaped block, the top of the T-shaped block is equipped with a slider, and one side of the four sliders is provided with an ejection assembly. The ejector assembly is used to eject the slider upwards, the bottom of the bottom mold is provided with a support assembly, the support assembly is used to support the entire mold, and the top of the support assembly is provided with a stamping assembly, so The above stamping assembly can stamp and bend materials.

By means of the above structure: the mold is placed on the corresponding hydraulic press, and then the regular rectangular metal plate is placed on the top of the bottom mold, that is, placed on the top of the four slide blocks, and the center of the rectangular metal plate is connected to the top of the bottom mold. After the centers are aligned, the stamping assembly can punch and bend the rectangular metal plate under the action of the hydraulic press. During this process, the slider moves along the T-shaped chute under the force of the stamping assembly until it reaches the top plane of the slider. Coincident with the top plane of the bottom mold, the slider and the bottom mold form the desired shape of the metal plate. Under the force of the stamping component, the rectangular metal plate is bent into the desired shape, and then the stamping component cancels the external force and ejects the component. Push the slider upwards, and the four sliders are close to each other, so that the formed metal plate is separated from the bottom mold, and at the same time, the inner wall around it is not in contact with the outer wall of the slider, so that the formed shell will not be stuck on the mold .

Preferably, a sliding cavity is opened in the middle of the top of the bottom mold, the ejection assembly includes an ejection column, and the ejection column is slidably mounted on the inner wall of the sliding cavity, and the bottom of the ejection column is provided with A first return spring, the two ends of the first return spring are in contact with the ejection column and the bottom of the sliding chamber respectively, and a connecting assembly is arranged on the top of the ejection column.

Further, when the slider moves downward under the force of the stamping assembly, the first return spring is compressed, and when the stamping assembly no longer exerts force, the first return spring resets, through the ejection column and the connecting assembly Push the slider back into place.

Preferably, the connection assembly includes a cross shell plate and four guide plates, and the four guide plates are evenly slidably mounted on the inner walls of the four ends of the cross shell plate, and one side of the guide plate is installed on the sliding On the block, the middle part of the bottom of the cross shell plate is installed on the top of the ejection column.

Further, the cross shell plate and the four guide plates cooperate with each other to make the four sliders move synchronously.

Preferably, the support assembly includes a bottom plate, a plurality of equidistant support plates are installed on the top of the bottom plate, the top of the support plate is installed on the bottom of the bottom mold, and four support plates are installed on the top of the bottom plate Each of the positioning rods is close to the four sides of the bottom mold perpendicular to the bottom plate on average, and buffer components are arranged at the four corners of the top of the bottom plate.

Further, the support plate raises the bottom mold, so that when the stamping component is punched by the bottom mold, the punched waste falls on the bottom plate and is not inside the bottom mold, which is convenient for cleaning.

Preferably, the buffer group includes a positioning column and a fixing cylinder, the bottom of the positioning column is installed on the bottom plate, the outer side wall of the positioning column is slidably installed on the top of the fixing cylinder, and the top of the fixing cylinder A top block is installed, the middle part of the bottom of the top block is installed with a forming module, the outer wall of the positioning column is sleeved with a third return spring, and the two ends of the third return spring are connected to the fixed cylinder and the fixed cylinder respectively. contact with the bottom plate.

Further, under the action of external force, the third return spring is compressed, and at the same time, a counter force is generated. When it is removed under the action of external force, the counter force is applied to the bottom of the fixed cylinder at this time, so that the entire top block returns to its original position.

Preferably, the top of the top block is provided with a plurality of equidistantly distributed fixing rods, the top of the fixed rods is provided with a force block, the four corners of the bottom of the force block are all provided with round holes, and the The fixed rod is slidably installed on the inner wall of the round hole, and the outer wall of the fixed rod is sleeved with a second return spring, and the two ends of the second return spring are in contact with the force-bearing block and the top block respectively , the top of the bottom mold is provided with a plurality of forming holes, the top of the top block is provided with a plurality of knife holes, the knife holes correspond to the forming holes, and the inner wall of the knife hole is slidably installed with A punching knife, the top of the punching knife is installed on the bottom of the stressed block.

Furthermore, under the action of the external force, the second return spring is compressed, and at the same time generates an opposing force, and when removed under the action of the external force, the opposing force is applied to the bottom of the force receiving block at this time.

Preferably, the side of the T-shaped block opposite to the T-shaped chute is provided with a locking groove, and the side of the T-shaped chute opposite to the T-shaped block is provided with a moving groove, and the inner wall of the moving groove A slanted block is slidably installed, and a guide hole is provided on one side of the slanted block, and a guide rod is slidably installed on the inner wall of the guide hole, and one side of the guide rod is installed on one side of the inner wall of the moving groove. An ejection spring is sleeved on the outer side wall of the rod, and the two ends of the ejection spring are respectively in contact with the oblique block and one side of the moving groove.

Further, when the moving groove of the T-shaped chute is aligned with the engagement groove of the T-shaped block, the ejection spring acts on one side of the oblique block, so that the oblique block enters the interior of the engagement groove, At this time, the T-shaped block cannot move upwards, and the limit is completed to prevent the slide block from breaking away from the bottom mold.

The working principle of this utility:

In summary, the technical effects and advantages of the present utility model:

1. In the utility model, the slider moves along the T-shaped chute under the force of the stamping assembly until the top plane of the slider coincides with the top plane of the bottom mold, and the slider and the bottom mold form the metal plate to be formed. shape, under the force of the stamping assembly, the rectangular metal plate is bent into the desired shape, and then the stamping assembly cancels the external force, and the ejection assembly is used to push the slider upwards, and the four sliders are close to each other to make the formed shape The metal plate is separated from the bottom mold, and the inner wall around it is not in contact with the outer wall of the slider, so that the formed shell will not be stuck on the mold.

2. In the utility model, when the moving groove of the T-shaped chute is aligned with the clamping groove of the T-shaped block, the ejection spring acts on one side of the oblique block so that the oblique block enters into the clamping slot. Inside the groove, the T-shaped block cannot move upwards at this time, and the limit is completed to prevent the slide block from breaking away from the bottom mold.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those skilled in the art, other drawings can also be obtained based on these drawings without creative work.

Fig. 1 is a schematic diagram of the three-dimensional structure of a punching and bending die for an excavator shell in the present embodiment;

Fig. 2 is the schematic diagram of the cross-sectional structure of Fig. 1;

Fig. 3 is the top view structure schematic diagram among the present embodiment;

Fig. 4 is a schematic diagram of the cut-away structure of A-A of Fig. 3;

FIG. 5 is a schematic diagram of the enlarged structure at A in FIG. 4 .

In the figure: 1, bottom mold; 2, positioning rod; 3, forming hole; 4, slider; 5, guide plate; 6, cross shell plate; 7, forming module; 8, top block; 9, fixed rod; 10 1, second return spring; 11, force block; 12, punching knife; 13, support plate; 14, bottom plate; 15, positioning column; 16, T-shaped block; 17, ejector column; , the first return spring; 20, the oblique block; 21, the ejection spring; 22, the guide rod.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Embodiment: Referring to a punching and bending die for an excavator casing shown in Figures 1-5, including a bottom mold 1, it needs to be explained here that the shape of the bottom mold 1 is determined according to the excavator casing.

The four corners of the top of the bottom mold 1 are provided with sliding surfaces, and the top of the sliding surface is provided with a T-shaped chute, and the inner wall of the T-shaped chute is slidably equipped with a T-shaped block 16. Here, it is necessary to explain the relationship between the T-shaped chute and the T-shaped chute. The shape blocks 16 cooperate with each other to ensure that the slider 4 moves upward in a straight line along the sliding surface.

The top of the T-shaped block 16 is equipped with a slide block 4, and one side of the four slide blocks 4 is provided with an ejection assembly, and the ejection assembly is used to push the slide block 4 upwards, and the bottom of the bottom mold 1 is provided with a support assembly, The support component is used to support the entire mold. The top of the support component is provided with a stamping component, which can stamp and bend the material. It needs to be explained here that the mold is suitable for regular rectangular metal plates.

By means of the above structure: the mold is placed on the corresponding hydraulic press, and then the regular rectangular metal plate is placed on the top of the bottom mold 1, that is, placed on the top of the four slide blocks 4, and the center and bottom of the rectangular metal plate are placed. After the center of the top of the die 1 is aligned, the stamping assembly can stamp and bend the rectangular metal plate under the action of the hydraulic press. During this process, the slider 4 moves along the T-shaped chute under the force of the stamping assembly until it slides The top plane of the block 4 coincides with the top plane of the bottom mold 1, the slider 4 and the bottom mold 1 form the shape of the metal plate to be formed, and under the force of the stamping assembly, the rectangular metal plate is bent into the desired shape, and then punched The component cancels the external force, and the ejector component is used to push the slider 4 upwards. The four sliders 4 are close to each other, so that the formed metal plate is separated from the bottom mold 1, and at the same time, the inner wall around it is not in contact with the outer wall of the slider 4. contact so that the formed shell does not get stuck on the mould.

As a preferred implementation of this embodiment, as shown in Figure 5, a sliding cavity is provided in the middle of the top of the bottom mold 1, and the ejector assembly includes a ejector column 17, which is slidably mounted on the inner wall of the sliding cavity , the bottom of the ejection column 17 is provided with a first return spring 19, and the two ends of the first return spring 19 are respectively in contact with the bottom of the ejection column 17 and the sliding cavity, and the top of the ejection column 17 is provided with a connecting assembly. When the block 4 moves downward under the active force of the stamping assembly, the first return spring 19 is compressed, and when the stamping assembly no longer exerts the active force, the first return spring 19 resets, and the push-out column 17 and the connecting assembly will Slider 4 is pushed to original position.

In this embodiment, as shown in Figure 1, the connection assembly includes a cross shell plate 6 and four guide plates 5, and the four guide plates 5 are evenly slidably mounted on the inner walls of the four ends of the cross shell plate 6, and one side of the guide plate 5 Installed on the slide block 4, the middle part of the bottom of the cross shell plate 6 is installed on the top of the ejection column 17, and the cross shell plate 6 cooperates with the four guide plates 5 to make the four slide blocks 4 move synchronously.

As a preferred implementation of this embodiment, as shown in Figure 5, the support assembly includes a base plate 14, a plurality of equidistantly distributed support plates 13 are installed on the top of the base plate 14, and the top of the support plate 13 is installed on the top of the bottom mold 1. On the bottom, four positioning rods 2 are installed on the top of the bottom plate 14, and each positioning rod 2 is close to the four vertical bottom plates 14 of the bottom mold 1 on average, and the four corners of the top of the bottom plate 14 are provided with buffer assemblies and support plates 13 Raise the bottom mold 1 so that the stamping assembly can be punched. When the bottom mold 1 is punched, the punched waste falls on the bottom plate 14 and is not inside the bottom mold 1, which is convenient for cleaning.

In this embodiment, as shown in Figure 2, the buffer group includes a positioning column 15 and a fixed cylinder 18, the bottom of the positioning column 15 is installed on the bottom plate 14, the outer side wall of the positioning column 15 is slidably installed on the top of the fixed cylinder 18, and the fixed cylinder The top of 18 is equipped with jacking block 8, and the middle part of jacking block 8 bottoms is equipped with forming module 7, and the outer side wall of positioning post 15 is socketed with the 3rd back-moving spring, and the two ends of the 3rd back-moving spring are respectively connected with fixed cylinder 18 and base plate. 14 are in contact with each other, under the action of external force, the third return spring is compressed, and at the same time, a resistance force is generated. When it is removed under the action of external force, the resistance force is applied to the bottom of the fixed cylinder 18 at this time, so that the entire top block 8 returns to its original position .

In this embodiment, as shown in Figure 1, the top of the top block 8 is provided with a plurality of equidistant fixed rods 9, the top of the fixed rods 9 is provided with a force block 11, and the four corners at the bottom of the force block 11 are A round hole is provided, and the fixed rod 9 is slidably installed on the inner wall of the round hole. The outer wall of the fixed rod 9 is sleeved with a second return spring 10, and the two ends of the second return spring 10 are connected with the force block 11 and the top block respectively. 8 are in contact with each other, the top of the bottom mold 1 is provided with a plurality of forming holes 3, and the top of the top block 8 is provided with a plurality of cutting holes, the cutting holes correspond to the forming holes 3, and the inner wall of the cutting hole is slidingly installed with a punching knife 12. The top of the punching knife 12 is installed on the bottom of the force-bearing block 11. Under the action of an external force, the second return spring 10 is compressed, and at the same time, an opposing force is generated. When it is removed under the action of an external force, the opposing force is applied at this time. The bottom of the force block 11.

As a preferred implementation of this embodiment, as shown in Figure 5, the side of the T-shaped block 16 opposite to the T-shaped chute is provided with a locking groove, and the side of the T-shaped chute opposite to the T-shaped block 16 is provided with a Moving groove, the inwall of moving groove is slidably installed with oblique block 20, and one side of oblique block 20 is provided with guide hole, and the inwall of guide hole is slidably installed with guide rod 22, and one side of guide rod 22 is installed on one side of moving groove inwall, The outer side wall socket of guide bar 22 is equipped with ejection spring 21, and the two ends of ejection spring 21 contact with oblique block 20 and one side of moving groove respectively, when the moving groove of T-shaped chute and T-shaped block 16 When the snap-in slots are aligned, the ejection spring 21 acts on one side of the oblique block 20, so that the oblique block 20 enters the inside of the snap-in slot. At this time, the T-shaped block 16 cannot move upwards, and the limit is completed. , to prevent the slider 4 from breaking away from the bottom mold 1.

The working principle of this utility:

The mold is placed on the corresponding hydraulic press, and then the regular rectangular metal plate is placed on the top of the bottom mold 1, that is, placed on the top of the four sliders 4, and the center of the rectangular metal plate is aligned with the center of the top of the bottom mold 1. After alignment, the stamping assembly can stamp and bend the rectangular metal plate under the action of the hydraulic press. During this process, the slider 4 moves along the T-shaped chute under the force of the stamping assembly until the top plane of the slider 4 Coincident with the top plane of the bottom mold 1, the slider 4 and the bottom mold 1 form the shape of the metal plate to be formed. Under the force of the stamping assembly, the rectangular metal plate is bent into the desired shape, and then the stamping assembly removes the external force, and the top The ejection assembly is used to eject the slider 4 upwards, and the four sliders 4 are close to each other, so that the formed metal plate is separated from the bottom mold 1, and the inner wall around it is not in contact with the outer side wall of the slider 4, so that it will not The formed shell will snap onto the mold.

When the moving groove of the T-shaped chute is aligned with the clamping groove of the T-shaped block 16, the ejection spring 21 acts on one side of the oblique block 20, so that the oblique block 20 enters the inside of the clamping groove At this time, the T-shaped block 16 cannot move upwards, and the limit is completed to prevent the slide block 4 from breaking away from the bottom mold 1; the support plate 13 raises the bottom mold 1, so that when the bottom mold 1 is punched, the punched waste falls on the On the bottom plate 14, not inside the bottom mold 1, it is convenient to clean.

Finally, it should be noted that: the above is only a preferred embodiment of the utility model, and is not intended to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art , it can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model, All should be included within the protection scope of the present utility model.

Claims (7)

1. The utility model provides an excavator shell is with mould of bending that punches a hole, includes die block (1), its characterized in that: the die block comprises a bottom die (1), and is characterized in that four corners at the top of the bottom die (1) are provided with sliding surfaces, a T-shaped sliding groove is formed in the top of each sliding surface, a T-shaped block (16) is slidably mounted on the inner wall of the T-shaped sliding groove, a sliding block (4) is mounted at the top of the T-shaped block (16), four ejection assemblies are arranged on one side of the sliding block (4), each ejection assembly is used for ejecting the sliding block (4) upwards, a supporting assembly is arranged at the bottom of the bottom die (1), the supporting assembly is used for supporting the whole die, a stamping assembly is arranged at the top of the supporting assembly, and the stamping assembly can stamp and bend materials.

2. The punching and bending die for the excavator shell as claimed in claim 1, wherein the die comprises: the middle part at die block (1) top has been seted up the slip chamber, ejecting subassembly includes ejecting post (17), ejecting post (17) slidable mounting be in on the inner wall in slip chamber, the bottom of ejecting post (17) is provided with first reset spring (19), the both ends of first reset spring (19) respectively with ejecting post (17) with the bottom in slip chamber contacts, the top of ejecting post (17) is provided with coupling assembling.

3. The punching and bending die for the excavator shell as claimed in claim 2, wherein the punching and bending die comprises: the connecting assembly comprises a cross shell plate (6) and four guide plates (5), the four guide plates (5) are arranged on the inner walls of the four ends of the cross shell plate (6) in a mean sliding mode, one side portions of the guide plates (5) are arranged on the sliding block (4), and the middle portion of the bottom of the cross shell plate (6) is arranged at the top of the ejection column (17).

4. The punching and bending die for the excavator shell as claimed in claim 1, wherein the die comprises: the supporting component comprises a bottom plate (14), a plurality of supporting plates (13) distributed equidistantly are installed at the top of the bottom plate (14), the top of each supporting plate (13) is installed on the bottom of the bottom die (1), four positioning rods (2) are installed at the top of the bottom plate (14), each positioning rod (2) is averagely close to four vertical bottom die (1) on one surface of the bottom plate (14), and four corners at the top of the bottom plate (14) are provided with buffering components.

5. The punching and bending die for the excavator shell according to claim 4, characterized in that: buffer group includes reference column (15) and solid fixed cylinder (18), install the bottom of reference column (15) on bottom plate (14), the lateral wall slidable mounting of reference column (15) is in the top of solid fixed cylinder (18), kicking block (8) are installed at the top of solid fixed cylinder (18), the mid-mounting of kicking block (8) bottom has forming module (7), the lateral wall of reference column (15) cup joints and installs third reset spring, third reset spring's both ends respectively with gu fixed cylinder (18) with bottom plate (14) contact.

6. The punching and bending die for the excavator shell according to claim 5, characterized in that: the utility model discloses a cutter punching die, including dead lever (9), bearing block (11), round hole have all been seted up to four corners of bearing block (11) bottom, dead lever (9) slidable mounting is on the inner wall of round hole, the lateral wall of dead lever (9) cup joints installs second reset spring (10), the both ends of second reset spring (10) respectively with bearing block (11) with top block (8) contact, a plurality of shaping holes (3) have been seted up at the top of die block (1), a plurality of play sword holes are seted up at the top of top block (8), go out the sword hole with shaping hole (3) are corresponding, the inner wall slidable mounting who goes out the sword hole has punching knife (12), the top of punching knife (12) is installed the bottom of bearing block (11).

7. The punching and bending die for the excavator shell as claimed in claim 1, wherein the die comprises: t-shaped piece (16) with the joint groove has been seted up to the one side that the T-shaped spout is relative, the T-shaped spout with the shifting chute has been seted up to the one side that the T-shaped piece (16) is relative, the inner wall slidable mounting of shifting chute has oblique piece (20), the guiding hole has been seted up on one side of oblique piece (20), the inner wall slidable mounting of guiding hole has guide bar (22), install on one side of guide bar (22) one side of shifting chute inner wall, the lateral wall cup joints of guide bar (22) and installs ejecting spring (21), the both ends of ejecting spring (21) respectively with oblique piece (20) with one side of shifting chute contacts.

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