Punching die for case accessories

Abstract

The utility model discloses a punching die for case accessories, which relates to the technical field of dies, and comprises an upper die holder and a lower die holder which are butted and matched through a guide post, the upper die holder and the lower die holder are respectively provided with an upper die and a lower die, and the lower end face of the upper die is detachably connected with a punch structure. The upper end face of the lower die is detachably connected with two opposite positioning pieces, a positioning groove acting on a product is defined between the two opposite positioning pieces, at least two sets of threaded grooves which are arranged at intervals and correspond to the positioning pieces are formed in the upper end face of the lower die, and the positioning pieces are provided with positioning holes matched with the threaded grooves. The positioning piece is matched with any group of threaded grooves; an insert seat is detachably embedded in the lower die, the insert seat is provided with a hole site penetrating through the insert seat in the vertical direction of the insert seat, and the hole site protrudes out of the surface of the positioning groove and corresponds to the punch structure; and the limitation of a traditional mold on products with single specifications is effectively changed.

Description

TECHNICAL FIELD

[0001] The utility model relates to die technical field, concretely is a kind of punching die for case accessory. BACKGROUND

[0002] In the production and processing industry of case accessory, the diversification and rapid update of product have become a significant trend. Different specifications of case accessory have significant differences in punching process requirements, such as hole size, shape, position, and overall product contour and size.

[0003] Traditional punching die is often designed and manufactured as an integrated structure for a specific specification of case accessory. This fixed-structure die faces great limitations when facing the production needs of multiple specifications. When producing new specifications, a new punching die usually needs to be redesigned and manufactured, which not only consumes a lot of time and labor costs, but also has a long development cycle, seriously lagging behind the product update speed, making it difficult for enterprises to quickly respond to market changes and miss business opportunities.

[0004] In addition, the traditional die has poor versatility and cannot adapt to the punching needs of different specifications by simply adjusting or replacing parts based on the same die. The storage of a large number of different specifications not only occupies valuable production space, but also increases the fixed asset investment and management costs of enterprises. Moreover, due to the lack of modular and convenient design, the installation and debugging process of the die is complex and prone to errors, further reducing production efficiency and increasing production costs.

[0005] Therefore, it is necessary to provide an improved technical solution to solve the above problems. UTILITY MODEL CONTENT

[0006] The utility model aims to provide a technical solution that can solve the above problems.

[0007] A punching die for case accessories includes an upper die seat and a lower die seat connected by guide columns. The upper die seat and the lower die seat each have an upper die and a lower die. A punch structure is detachably connected to the lower end face of the upper die. Two opposing positioning members are detachably connected to the upper end face of the lower die. The positioning members form a positioning groove for the product between them. At least two groups of threaded grooves are provided on the upper end face of the lower die and correspond to the positioning members. The positioning members have positioning holes that cooperate with the threaded grooves. The positioning members cooperate with any one group of threaded grooves.

[0008] The lower die is detachably embedded with an insert seat, the insert seat has a hole position penetrating through the vertical direction of the insert seat, the hole position is highlighted on the surface of the positioning groove and corresponds to the punch structure, and the lower die seat penetrates through a channel corresponding to the hole position to form a waste discharge channel.

[0009] As a further scheme of the utility model, the lower die comprises a first lower die plate and a second lower die plate, the first lower die plate, the second lower die plate and the lower die seat are sequentially screwed, the first lower die plate is provided with a mounting groove matched with the insert seat, and the second lower die plate is used for sealing the insert seat into the mounting groove.

[0010] As a further scheme of the utility model, the insert seat comprises a first part and a second part protruding on the upper end face of the first part, the second part and the first part are coaxially arranged, and the second part is located in the vertical projection range of the first part.

[0011] The mounting groove comprises a first groove position matched with the first part and a second groove position matched with the second part.

[0012] As a further scheme of the utility model, the upper and lower sides of the positioning piece are both inwardly extended to form positioning parts, and a positioning opening is formed between the two positioning parts.

[0013] As a further scheme of the utility model, the punch structure comprises a stamping plate screwed on the lower end face of the upper die, the lower end face of the stamping plate is provided with a pressing protrusion acting on the product and a punch located at the center position of the pressing protrusion.

[0014] As a further scheme of the utility model, the second lower die plate is also provided with a channel penetrating through the second lower die plate and corresponding to the hole position.

[0015] Compared with the prior art, the utility model has the advantages of the following:

[0016] The modular design of the mold completely changes the limitation of the traditional mold for single specification products, and through the replaceability and adjustment of the punch structure, the positioning piece and the insert seat, the chassis accessories of various shapes, sizes and punching process requirements can be processed in the same mold frame, the enterprise does not need to reserve special molds for each new product specification, the types and quantities of molds are greatly reduced, the research and development design and manufacturing cost of the mold are effectively reduced, the cost is saved, and the occupied space is saved.

[0017] Additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0018] 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 needed to be used in the embodiments or prior art description. Obviously, the drawings described in the following are only some embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0019] Figure 1 is a three-dimensional structural schematic view of the present application;

[0020] Figure 2 is a three-dimensional structural schematic view of the lower die seat of the present application;

[0021] Figure 3 is a sectional structural schematic view of the lower die seat of the present application;

[0022] Figure 4 is a top view structural schematic view of the lower die seat of the present application;

[0023] Figure 5 is a three-dimensional structural schematic view of the upper die seat of the present application.

[0024] The reference signs and names in the drawings are as follows:

[0025] 1, upper die seat; 2, lower die seat; 3, upper die; 4, lower die; 5, punch structure; 6, positioning piece; 7, positioning groove; 8, threaded groove; 9, positioning hole; 10, insert block seat; 11, hole site; 12, waste discharge channel; 13, first lower die plate; 14, second lower die plate; 15, mounting groove; 16, first part; 17, second part; 18, first groove site; 19, second groove site; 20, positioning part; 21, positioning port; 22, stamping plate; 23, press-fit protrusion; 24, punch. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0027] Please refer to Figures 1-5The utility model discloses a punch die for case accessory, including the upper die seat 1 and lower die seat 2 of the butt joint of the upper die seat 1 through the guide pillar realizes the cooperation, the upper die seat 1 and lower die seat 2 have upper die 3 and lower die 4 respectively, the lower end surface of upper die 3 is detachably connected with punch structure 5, the upper end surface of lower die 4 is detachably connected with two opposite positioning piece 6, the positioning piece 6 is surrounded and forms the positioning groove 7 of the product between the opposite, along the upper end surface of lower die 4 is provided with at least two groups of interval and with positioning piece 6 corresponding thread groove 8, positioning piece 6 is provided with the positioning hole 9 of cooperation with thread groove 8, positioning piece 6 and any one group of thread groove 8 cooperation;

[0028] The lower die 4 is detachably embedded with the insert seat 10, the insert seat 10 has the hole site 11 being set through itself along its vertical direction, the hole site 11 is highlighted on the surface of positioning groove 7 and corresponds with punch structure 5, the lower die seat 2 is penetrated with the passageway corresponding with hole site 11, to form the exhaust passageway 12 of intercommunication.

[0029] The utility model technical scheme in the present application:

[0030] The punch structure 5 of the lower end surface of upper die 3 adopts detachable connection mode, and this design is based on the different hole characteristics of different case accessories, for example, the case accessory can need round, square, rectangular or other special shape hole, the modularization of punch structure 5 can have corresponding replaceable punch 24 module for each shape hole, through simple dismounting and mounting operation, the punch 24 of the mould can be quickly adjusted to match the product punching shape requirement, at the same time, the size of punch 24 can also be customized and replaced according to different hole diameter specifications, to meet different processing requirements such as small hole diameter precision punching and large hole diameter strong punching;

[0031] The two opposite positioning piece 6 on the upper end surface of lower die 4 is the key to realize the accurate positioning of the product, which cooperates with the at least two groups of interval setting thread groove 8 on the lower die 4, and the positioning hole 9 on the positioning piece 6 is fixed by the connecting piece such as bolt and thread groove 8, this design allows the positioning piece 6 to adjust the relative distance between different thread groove 8 positions, so as to adapt to the positioning requirement of different shape and size case accessories, for different length, width or special profile case accessories, by reselecting the cooperation position of positioning piece 6 and thread groove 8, the positioning groove 7 matched with it can be quickly formed, for example, for long strip-shaped case accessory, the positioning piece 6 can be adjusted to the thread groove 8 position at both ends of lower die 4, to ensure its accurate fixation in the length direction, and for small square case accessory, the thread groove 8 close to the center position can be selected to install the positioning piece 6, to realize accurate positioning;

[0032] The insert seat 10 is detachably embedded in the lower die 4, and a key working area of the punch hole is a hole site 11 through the insert seat 10 in the vertical direction, the shape, size and internal structure (such as whether there is a step, a special hole diameter change, etc.) of the hole site 11 can be designed and replaced according to the punching process requirements of different chassis accessories, when the product needs different depth holes or holes with special shape combination (such as through holes with counterbores at the bottom), the corresponding insert seat 10 can be replaced, the hole site 11 of the insert seat 10 is accurately matched with the punch structure 5 when the mold is closed, so that the punch 24 can smoothly enter the hole site 11 to perform the punching operation, and during the punching process, the insert seat 10 can withstand the blanking force and provide stable support for the product, so as to ensure the quality and precision of the punching;

[0033] The upper die seat 1 and the lower die seat 2 are connected by guide columns, which ensures the accuracy and stability of the upper die 3 and the lower die 4 during opening and closing. During stamping, the guide column guides the upper die 3 to move downward accurately and cooperate with the lower die 4, so that the punch structure 5 can accurately enter the hole site 11 of the insert seat 10 to perform the punching operation, thereby reducing the punching error caused by mold deviation;

[0034] In summary, the modular design of the mold completely changes the limitation of traditional molds for single specification products. Through the replaceable and adjustable punch structure 5, positioning piece 6 and insert seat 10, the chassis accessories with various shapes, sizes and punching process requirements can be processed in the same mold frame. Enterprises do not need to reserve special molds for each new product specification, which greatly reduces the types and quantities of molds, thereby effectively reducing the research and development design and manufacturing cost of the mold, saving the cost, and saving the occupied space.

[0035] In the embodiment of the utility model, the lower die 4 includes the first lower die plate 13 and the second lower die plate 14, the first lower die plate 13, the second lower die plate 14 and the lower die seat 2 are connected in turn by screws, the first lower die plate 13 is provided with the installation groove 15 matched with the insert seat 10, and the second lower die plate 14 is used for sealing the insert seat 10 into the installation groove 15.

[0036] The first lower die plate 13, the second lower die plate 14 and the lower die seat 2 are connected by screws to form a stable and hierarchical lower die 4 system, the installation groove 15 matched with the insert seat 10 is arranged in the first lower die plate 13, the shape, size and precision of the installation groove 15 are carefully designed according to the contour and installation requirements of the insert seat 10, which provides an accurate and stable initial installation position for the insert seat 10, and the close fit between the side wall of the installation groove 15 and the insert seat 10 can effectively position and constrain the insert seat 10 in the horizontal direction, preventing the insert seat 10 from moving when subjected to lateral force (such as deformation resistance of the material during blanking);

[0037] The second lower die plate 14 mainly undertakes the function of sealing the insert block seat 10 into the installation groove 15, and after the insert block seat 10 is placed in the installation groove 15 of the first lower die plate 13, the second lower die plate 14 is fixed on the first lower die plate 13 through screw connection, and vertical pressure is applied to the insert block seat 10, so that the insert block seat 10 is fixed in the installation groove 15, the double-layer structure design makes the installation of the insert block seat 10 in the die more reliable, and the insert block seat 10 can withstand a larger blanking force without being easily loosened or deformed, and meanwhile, the layered design facilitates the installation and dismounting operation of the insert block seat 10.

[0038] In the embodiment of the utility model, the insert block seat 10 includes a first part 16 and a second part 17 protruding on the upper end face of the first part 16, the second part 17 and the first part 16 are coaxially arranged, and the second part 17 is located in the vertical projection range of the first part 16.

[0039] The installation groove 15 includes a first slot 18 matched with the first part 16 and a second slot 19 matched with the second part 17.

[0040] The insert block seat 10 is composed of the first part 16 and the second part 17 protruding on the upper end face thereof, and the two parts are coaxially arranged, and the stepped structure is based on the consideration of different functional areas and stress conditions in the punching process, the first part 16 serves as the main bearing and connecting part, and the size and shape thereof are matched with the first slot 18 of the first lower die plate 13, so that the first part 16 can be stably embedded in the installation groove 15 and bear most of the transmission of the punching force from the upper part and uniformly disperse the force to the lower die seat 2 and the whole die structure.

[0041] The second part 17 is a key area directly participating in the punching work, and protrudes from the upper end face of the first part 16 and is located in the vertical projection range of the first part 16, the coaxial arrangement of the second part 17 and the first part 16 ensures the consistency of the force transmission direction in the punching process, reduces the generation of eccentric load and lateral force, the shape, size and relative position relationship of the second part 17 and the first part 16 are designed according to the specific shape, depth and accuracy requirements of the hole to be punched, for example, for the hole with specific depth requirements or the hole with stepped shape, the height and contour of the second part 17 can accurately control the depth and shape characteristics of the punching, thereby facilitating the improvement of the accuracy and quality of the product and meeting the production requirements of diversified and high-precision machine case accessories.

[0042] In the embodiment of the utility model, the upper and lower sides of the positioning piece 6 each extend inward to form a positioning part 20, and a positioning opening 21 is formed between the two positioning parts 20.

[0043] The upper and lower sides of the positioning member 6 extend inward to form a positioning portion 20. The positioning opening 21 between the two positioning portions 20 is designed based on the need for more accurate and stable positioning of chassis accessories. The extension direction and length of the positioning portion 20 are determined according to the outer contour of the chassis accessory and the key positioning parts. For example, for chassis accessories with specific edge shapes or protruding structures, the positioning portion 20 can fit these parts and limit their movement in the horizontal direction (X and Y axis directions) by contacting the surface of the accessory.

[0044] In an embodiment of the present invention, the punch structure 5 includes a stamping plate 22 connected to the lower end surface of the upper die 3 by screws. The lower end surface of the stamping plate 22 has a pressing protrusion 23 acting on the product and a punch 24 located at the center of the pressing protrusion 23.

[0045] The punching plate 22 is connected to the lower end surface of the upper die 3 by screws. This connection method facilitates the installation, disassembly and maintenance of the punch structure 5. The punching plate 22 serves as a bearing component. The pressing protrusion 23 on its lower end surface and the punch 24 have specific functions and layouts. The pressing protrusion 23 surrounds the punch 24. Its shape and size are designed according to the shape and area of ​​the periphery of the punching part of the chassis accessory. Before the punching process begins, when the die descends, the pressing protrusion 23 first contacts the surface of the chassis accessory. Its function is to press the chassis accessory tightly against the positioning surface of the die (such as the surface of the positioning groove 7 formed by the positioning member 6) before the punch 24 performs the punching operation, so as to prevent the accessory from being displaced or tilted due to the impact force of the punch 24 at the moment of punching. The pressing protrusion 23 provides a stable local working environment for punching through the friction and pressure with the surface of the accessory.

[0046] In one embodiment, when the die starts to descend, the punch structure 5 as a whole approaches the chassis accessory. During this process, the punch 24 and the pressing protrusion 23 approach the accessory surface almost at the same time. However, since the pressing protrusion 23 is designed to surround the punch 24 and its main function is to press and fix the accessory during the punching process, from the perspective of functional realization, it plays a key pressing role at the moment of punching. To be precise, when the punch 24 just contacts the chassis accessory material and starts punching, the pressing protrusion 23 also fits tightly to the accessory surface. As the punching process continues, the pressing protrusion 23 continues to apply pressure to press the accessory tightly against the positioning surface of the die. This synchronized action can effectively prevent the accessory from being displaced due to the deformation resistance of the material and the impact force of the punch 24 during punching.

[0047] In the embodiment of the present invention, the second lower template 14 also defines a channel penetrating the second lower template 14 and corresponding to the hole 11 .

[0048] The second lower die plate 14 is provided with a passage corresponding to the hole position 11, which is used to form a complete and continuous waste discharge passage 12 together with the hole position 11 of the insert block seat 10 and the passage of the lower die seat 2.

[0049] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

Claims

1. A piercing die for a chassis fitting, characterised in that, The upper die base and the lower die base are connected by guide posts, the upper die base and the lower die base have upper dies and lower dies respectively, a punch structure is detachably connected to the lower end surface of the upper die, two positioning members are detachably connected to the upper end surface of the lower die, the two positioning members are oppositely arranged and form a positioning groove for a product, at least two groups of thread grooves are arranged on the upper end surface of the lower die and correspond to the positioning members, the positioning members are provided with positioning holes matched with the thread grooves, and the positioning members are matched with any one of the thread grooves. A insert base is detachably embedded in the lower die, the insert base has a hole position penetrating the insert base in the vertical direction, the hole position is highlighted on the surface of the positioning groove and corresponds to the punch structure, and the lower die base penetrates a channel corresponding to the hole position to form a waste discharge channel.

2. A piercing die for a cabinet fitting according to claim 1, wherein, The lower die includes a first lower die plate and a second lower die plate, the first lower die plate, the second lower die plate and the lower die base are sequentially screwed, the first lower die plate is provided with a mounting groove matched with the insert base, and the second lower die plate is used for sealing the insert base into the mounting groove.

3. A piercing die for a cabinet fitting according to claim 2, wherein, The insert base includes a first part and a second part protruding on the upper end surface of the first part, the second part and the first part are coaxially arranged, and the second part is located in the vertical projection range of the first part. The mounting groove includes a first groove matched with the first part and a second groove matched with the second part.

4. The piercing die for a cabinet accessory of claim 1, wherein, The positioning member extends inwardly to form a positioning part on the upper and lower sides respectively, and a positioning opening is formed between the two positioning parts.

5. The piercing die for a cabinet fitting according to claim 1, wherein The punch structure includes a stamping plate connected to the lower end surface of the upper die by a screw, the lower end surface of the stamping plate has a pressing protrusion acting on the product and a punch located at the center of the pressing protrusion.

6. A piercing die for a cabinet fitting according to claim 2, wherein The second lower die plate also has a channel penetrating itself and corresponding to the hole position.

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