Support shortcut die

Abstract

The utility model discloses a support shortcut die which comprises an upper die base, an in-die tapping machine, a lower die base, a female die assembly and a male die assembly, the female die assembly and the male die assembly are located between an upper die plate and a lower die plate, the female die assembly is arranged on the inner side, close to the upper die base, of the lower die base, and the male die assembly is arranged on the inner side, close to the lower die base, of the upper die base. The female die assembly and the male die assembly comprise a preliminary cutting part, a fine machining part and a bending forming part. The in-mold tapping machine is arranged between the fine machining part and the bending forming part, the lower end of the in-mold tapping machine is fixed to the lower mold base, and the upper end of the in-mold tapping machine is arranged on the upper mold base. According to the utility model, a plurality of procedures can be completed in one stamping process, double-line processing can be carried out at the same time, the manufacturing and forming of brackets are realized in pairs, and the production efficiency is greatly improved. Meanwhile, the in-mold tapping machine is adopted, and secondary machining procedures of stamping parts are avoided by integrating stamping and tapping.

Description

Technical Field

[0001] The utility model belongs to the technical field of range hood motor bracket processing, and relates to a bracket shortcut die, in particular to a range hood motor bracket multi-process stamping die. Background Art

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. It can extract the waste from stove combustion and the fumes generated by cooking and discharge them to the outside, purifying the kitchen air and protecting the health of users. A range hood usually includes a housing, an air duct, an impeller, and a motor. The installation of the motor in the range hood needs to be fixed with a bracket. The traditional manufacturing method of the range hood motor bracket usually adopts machining or casting processes. Although these methods can realize the manufacture of the impeller, there are problems such as low production efficiency, low material utilization, and high cost. In addition, the range hood motor bracket also needs to be tapped.

[0003] With the continuous advancement of stamping technology, its application in the manufacturing field is becoming more and more extensive. Stamping technology has the advantages of high production efficiency, high material utilization rate, and high product precision. Especially when manufacturing thin sheet metal parts, stamping technology can achieve efficient and precise processing. Multi-process stamping die, also known as shortcut die, is an advanced form of stamping technology. It can complete multiple processes in one stamping process, such as punching, trimming, forming, etc. This kind of die not only improves production efficiency, but also reduces manufacturing costs.

[0004] At present, the production of range hood motor brackets requires 12 processes including stamping and tapping to complete the processing. The required site area, logistics turnover, equipment occupation and personnel investment are all too high, and the production capacity is seriously insufficient while the energy consumption is high. Summary of the invention

[0005] In view of the deficiencies in the prior art, the utility model proposes a bracket shortcut die, which can complete multiple processes in one stamping process and can perform double-line processing at the same time to realize the manufacturing and forming of the bracket in pairs, thereby greatly improving the production efficiency.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The bracket shortcut mold includes an upper mold base, an in-mold tapping machine, a lower mold base, and a die assembly and a punch assembly located between the upper and lower mold plates. The die assembly is arranged on the inner side of the lower mold base close to the upper mold base, and the punch assembly is arranged on the inner side of the upper mold base close to the lower mold base, and the die assembly and the punch assembly cooperate with each other; the die assembly and the punch assembly are generally divided into three parts, including a preliminary cutting part, a fine processing part, and a bending and forming part; the in-mold tapping machine is arranged between the fine processing part and the bending and forming part, the lower end of the in-mold tapping machine is fixed on the lower mold base, and the upper end of the in-mold tapping machine is arranged on the upper mold base.

[0008] The die assembly comprises a lower plate, a lower template and a die, wherein the lower plate is arranged on the inner wall of the lower die seat, the lower template is arranged on the lower plate, and the die is arranged on the upper side of the lower template;

[0009] The punch assembly includes an upper pad, an upper clamping plate, a stop plate, a stripper plate and a punch, wherein the upper pad is arranged on the inner wall of the upper die base, the upper clamping plate is arranged on the lower side of the upper pad, the stop plate is arranged on the lower side of the upper clamping plate, and the stripper plate is arranged on the lower side of the stop plate; the punch is arranged on the lower side of the upper pad, and the punch passes through the upper clamping plate, the stop plate and the stripper plate to be stamped and matched with the corresponding die.

[0010] The preliminary cutting part includes a first punching station, a downward embossing station, a first trimming station, a second punching station and a second trimming station; the first punching station includes a positioning hole punch and a punch for the part to be cut, and the positioning hole of the steel plate is punched by the positioning hole punch, and the punch for the part to be cut includes a vertical punch and a horizontal punch, which are respectively used to realize the preliminary punching of the part to be cut in the vertical direction and the part to be cut in the horizontal direction of the steel plate; the downward embossing station includes a pair of downward embossing punches, which are used to perform downward stamping and embossing on the main body of the paired bracket; the first trimming station includes a pair of vertical punches, which are used to realize the punching of the part to be cut in the vertical direction of the steel plate; the second punching station includes a connecting part punch, which is used to realize the punching of the connecting part between the paired brackets; the second trimming station includes a pair of horizontal punches, which are used to realize the punching of the part to be cut in the horizontal direction of the steel plate.

[0011] The fine processing part includes an upward embossing station, a third punching station and a downward hole-turning station; the upward embossing station includes multiple upward embossing punches for realizing upward stamping and embossing of both ends of the bracket; the third punching station includes installation positioning punches arranged in pairs, which are used to punch the installation positioning holes at both ends of the bracket. The bracket has a total of three installation positioning holes, two at one end and one at the other end; the downward hole-turning station includes a hole-turning punch, which is used to perform a downward hole-turning operation on a single installation positioning hole at the other end of the bracket.

[0012] The in-mold tapping machine is used to tap the installation positioning hole after the hole is turned downward.

[0013] The bending and forming part includes a downward bending station, a shaping station and a separation station; the downward bending station includes a first bending punch and a second bending punch arranged in pairs, which are respectively used for bending the two ends of the bracket downward 90 degrees; the shaping station includes a shaping punch arranged in pairs, which is used to further shape the two ends of the bracket after the 90-degree bending to ensure the accuracy of the bending angle of the bracket; the separation station includes a separation punch, which is used to punch and separate the connecting parts between the paired brackets.

[0014] The workstations of the preliminary cutting part, the fine processing part and the bending and forming part are all composed of a concave die and a convex die.

[0015] In one embodiment, the lower template is provided with a push pin and a steel plate pad. The push pin is provided with an annular groove for fixing the steel plate and limiting the position of the steel plate. The steel plate pad is provided on the steel plate transmission path. The push pin and the steel plate pad are provided with springs at the bottom. When the push plate is pressed down, the steel plate pad can be retracted to be flush with the upper surface of the lower template, and the annular groove of the push pin is flush with the upper surface of the lower template. The push plate is provided with a groove that matches the push pin.

[0016] In one embodiment, the preliminary cutting part, the fine processing part and the bending and forming part are all provided with guide components, and the guide components include an inner guide column arranged on the inner wall of the upper pad and an inner guide sleeve corresponding to the inner guide column and arranged on the stripping plate and the lower pad.

[0017] In one embodiment, an upper support plate is arranged above the upper die base, and an upper pad is arranged between the upper die base and the upper support plate; a lower support plate is arranged below the lower die base, and a lower pad is arranged between the lower die base and the lower support plate.

[0018] In one embodiment, the upper clamping plate and the stop plate are connected to each other via an elastic rubber column.

[0019] In one embodiment, the upper die base and the upper pad, the upper pad and the upper clamping plate, the stop plate and the stripping plate, the lower template and the lower pad, and the lower pad and the lower die base are all connected by welding.

[0020] The beneficial effects of the utility model are as follows:

[0021] The multi-process stamping die of the utility model can complete multiple processes in one stamping process, and can perform double-line processing at the same time, realize the manufacturing and forming of the bracket in pairs, and greatly improve the production efficiency. The products manufactured by the mold have the characteristics of good consistency and strong interchangeability, and can meet the needs of large-scale production. Through reasonable mold design, the waste of materials can be minimized and the material utilization rate can be improved. The cost of mold manufacturing is relatively low, which can reduce the overall cost of the product.

[0022] At the same time, the utility model adopts an in-mold tapping machine, which integrates stamping and tapping, avoids the secondary processing of stamping parts, simplifies the operation process, improves efficiency, improves tapping accuracy, saves manpower and material resources, improves the yield rate, and has a simple structure and is convenient for replacement and installation. It can avoid secondary clamping and operation to the greatest extent, simplify the operation process, and improve processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the bracket shortcut mold of the utility model embodiment;

[0024] Figure 2 This is a schematic diagram of the process flow of the bracket shortcut mold according to the embodiment of the utility model;

[0025] Figure 3 This is the three-view drawing of the range hood motor bracket structure;

[0026] Figure 4 This is a top view of the bracket shortcut mold of the embodiment of the utility model;

[0027] Figure 5-Figure 10 It is a side view of different cross sections of the bracket shortcut mold of the embodiment of the utility model;

[0028] Among them, 1-upper support plate, 2-upper pad, 3-upper die base, 4-upper pad, 5-upper clamp, 6-stop plate, 7-stripping plate, 8-lower template, 9-lower pad, 10-lower die base, 11-lower pad, 12-lower support plate, 13-in-mold tapping machine, 14-preliminary cutting part, 15-fine processing part, 16-bending and forming part, 17-inner guide column, 18-inner guide sleeve. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0030] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In-mold tapping machine, also known as in-mold tapping machine, is a device specially used for forming threads. It integrates stamping and tapping to avoid the secondary processing of stamping parts, thereby reducing costs and improving production efficiency. The threads formed by in-mold tapping machine have high precision and good strength. They are suitable for continuous forming molds or forward-feed extension molds. It is a promising tapping processing technology. The working principle of in-mold tapping machine is to convert the up and down movement of the punch / machine slider into the spiral movement of the extrusion tap to achieve the purpose of thread forming. This technology truly realizes "chipless processing". Because the tapping uses an extrusion tap, no chips formed by cutting will be generated during the thread forming process, so it is clean and environmentally friendly, and the strength of the thread is greatly improved. These are incomparable to traditional processing.

[0034] The advantages of in-mold tapping machines include simplified operation process, improved efficiency, improved tapping accuracy, saving manpower and material resources, improved yield rate, simple structure, and convenient replacement and installation. It is particularly suitable for continuous dies, progressive dies, and precision dies. It can avoid secondary clamping and operation to the greatest extent, simplify the operation process, and improve processing efficiency. It can be said to be a major revolution in the mold industry.

[0035] like Figure 1 , 3 -10, the bracket shortcut mold includes an upper mold base 3, an in-mold tapping machine 13, a lower mold base 10, and a die assembly and a punch assembly located between the upper and lower mold plates 8, the die assembly is arranged on the inner side of the lower mold base 10 close to the upper mold base 3, the punch assembly is arranged on the inner side of the upper mold base 3 close to the lower mold base 10, and the die assembly and the punch assembly cooperate; the die assembly and the punch assembly are generally divided into three parts, including a preliminary cutting part 14, a fine processing part 15 and a bending and forming part 16; the in-mold tapping machine 13 is arranged between the fine processing part 15 and the bending and forming part 16, the lower end of the in-mold tapping machine 13 is fixed on the lower mold base 10, and the upper end of the in-mold tapping machine 13 is arranged on the upper mold base 3.

[0036] The die assembly includes a lower pad 9, a lower mold plate 8 and a die. The lower pad 9 is arranged on the inner wall of the lower mold base 10, the lower mold plate 8 is arranged on the lower pad 9, and the die is arranged on the upper side of the lower mold plate 8.

[0037] The punch assembly includes an upper pad 4, an upper clamping plate 5, a stop plate 6, a stripper plate 7 and a punch. The upper pad 4 is arranged on the inner wall of the upper die base 3, the upper clamping plate 5 is arranged on the lower side of the upper pad 4, the stop plate 6 is arranged on the lower side of the upper clamping plate 5, and the stripper plate 7 is arranged on the lower side of the stop plate 6; the punch is arranged on the lower side of the upper pad 4, the punch passes through the upper clamping plate 5, the stop plate 6 and the stripper plate 7, and is stamped with the corresponding die.

[0038] The preliminary cutting part 14 includes a first punching station, a downward embossing station, a first trimming station, a second punching station and a second trimming station; the first punching station includes a positioning hole punch and a punch for the part to be cut, and the positioning hole punch is used to punch the positioning hole of the steel plate. The punch for the part to be cut includes a vertical punch and a horizontal punch, which are respectively used to achieve preliminary punching of the part to be cut in the vertical direction and the part to be cut in the horizontal direction of the steel plate; the downward embossing station includes a pair of downward embossing punches, which are used to perform downward stamping and embossing on the main body of the paired bracket; the first trimming station includes a pair of vertical punches, which are used to punch the part to be cut in the vertical direction of the steel plate; the second punching station includes a connecting part punch, which is used to punch the connecting part between the paired brackets; the second trimming station includes a pair of horizontal punches, which are used to punch the part to be cut in the horizontal direction of the steel plate.

[0039] The fine processing part 15 includes an upward embossing station, a third punching station and a downward hole-turning station; the upward embossing station includes a plurality of upward embossing punches for realizing upward stamping and embossing of both ends of the bracket; the third punching station includes installation positioning punches arranged in pairs, which are used to punch the installation positioning holes at both ends of the bracket. The bracket has a total of three installation positioning holes, two at one end and one at the other end; the downward hole-turning station includes a hole-turning punch, which is used to perform a downward hole-turning operation on a single installation positioning hole at the other end of the bracket.

[0040] The in-mold tapping machine 13 is used to tap the installation positioning holes after the holes are turned downward.

[0041] The bending and forming part 16 includes a downward bending station, a shaping station and a separation station; the downward bending station includes a first bending punch and a second bending punch arranged in pairs, which are respectively used for bending the two ends of the bracket downward 90 degrees; the shaping station includes a shaping punch arranged in pairs, which is used to further shape the two ends of the bracket after the 90-degree bending to ensure the accuracy of the bending angle of the bracket; the separation station includes a separation punch, which is used to punch and separate the connecting parts between the paired brackets.

[0042] The stations of the preliminary cutting part 14, the fine processing part 15 and the bending and forming part 16 are all composed of a concave mold and a convex mold. Figure 2 It is a process flow diagram.

[0043] In one embodiment, a push pin and a steel plate pad are provided on the lower template 8. The push pin is provided with an annular groove for fixing the steel plate and limiting the position of the steel plate. The steel plate pad is provided on the steel plate transmission path. Springs are provided at the bottom of the push pin and the steel plate pad. When the push plate is pressed down, the steel plate pad can be retracted to be flush with the upper surface of the lower template 8, and the annular groove of the push pin is flush with the upper surface of the lower template 8. A groove matching the push pin is provided on the push plate.

[0044] In one embodiment, the preliminary cutting part 14, the fine processing part 15 and the bending and forming part 16 are all provided with guide components, which include an inner guide column 17 arranged on the inner wall of the upper pad 4 and an inner guide sleeve 18 corresponding to the inner guide column 17 and arranged on the stripping plate 7 and the lower pad 9.

[0045] In one embodiment, an upper support plate 1 is disposed above the upper die base 3 , and an upper pad 2 is disposed between the upper die base 3 and the upper support plate 1 ; a lower support plate 12 is disposed below the lower die base 10 , and a lower pad 11 is disposed between the lower die base 10 and the lower support plate 12 .

[0046] In one embodiment, the upper clamping plate 5 and the stop plate 6 are connected to each other via an elastic rubber column.

[0047] In one embodiment, the upper die base 3 and the upper pad 4, the upper pad 4 and the upper clamping plate 5, the stop plate 6 and the stripping plate 7, the lower mold plate 8 and the lower pad 9, and the lower pad 9 and the lower die base 10 are all connected by welding.

[0048] In actual use, the steel plate is introduced into the bracket shortcut die, and the steel plate is processed in sequence by the preliminary cutting part 14, the fine processing part 15, the in-die tapping machine 13 and the bending and forming part 16. In the preliminary cutting part 14, the positioning hole punch of the first punching station is first used to punch the positioning hole of the steel plate, and the vertical punch and the horizontal punch are used to punch the vertical and horizontal parts of the steel plate respectively; then the downward embossing punch of the downward embossing station is used to punch the paired bracket body downward; then the vertical punch of the first trimming station is used to punch the vertical part of the steel plate; the connecting part between the paired brackets is punched by the connecting part punch of the second punching station; finally, the horizontal punch of the second trimming station is used to punch the horizontal part of the steel plate to be cut, and then the steel plate is introduced into the fine processing part 15.

[0049] In the fine processing part 15, first, the two ends of the bracket are embossed upward by using multiple upward embossing punches at the upward embossing station; then, the installation positioning punches at the third punching station are used to punch out the installation positioning holes at both ends of the bracket. The bracket has a total of three installation positioning holes, two at one end and one at the other end; finally, the single installation positioning hole at the other end of the bracket is downwardly flipped by the flipping punch at the downward flipping station, and then transmitted to the in-mold tapping machine 13.

[0050] After the installation positioning hole after the downward hole is tapped by the in-mold tapping machine 13, it enters the bending and forming part 16.

[0051] In the bending and forming part 16, the two ends of the bracket are bent downward 90 degrees by the first bending punch and the second bending punch of the downward bending station respectively; the two ends of the bracket after being bent 90 degrees are further shaped by the shaping punch of the shaping station to ensure the accuracy of the bending angle of the bracket; finally, the connecting parts between the paired brackets are punched and separated by the separation punch of the separation station to obtain a formed range hood motor bracket.

[0052] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. The bracket shortcut mold is characterized by: It includes an upper die base, an in-die tapping machine, a lower die base, and a die assembly and a punch assembly located between the upper and lower die plates, wherein the die assembly is arranged on the inner side of the lower die base close to the upper die base, and the punch assembly is arranged on the inner side of the upper die base close to the lower die base, and the die assembly and the punch assembly cooperate with each other; the die assembly and the punch assembly are generally divided into three parts, including a preliminary cutting part, a fine processing part, and a bending and forming part; the in-die tapping machine is arranged between the fine processing part and the bending and forming part, the lower end of the in-die tapping machine is fixed on the lower die base, and the upper end of the in-die tapping machine is arranged on the upper die base; The die assembly comprises a lower pad, a lower template and a die, wherein the lower pad is arranged on the inner wall of the lower die seat, the lower template is arranged on the lower pad, and the die is arranged on the upper side of the lower template; The punch assembly comprises an upper pad, an upper clamping plate, a stop plate, a stripper plate and a punch, wherein the upper pad is arranged on the inner wall of the upper die seat, the upper clamping plate is arranged on the lower side of the upper pad, the stop plate is arranged on the lower side of the upper clamping plate, and the stripper plate is arranged on the lower side of the stop plate; the punch is arranged on the lower side of the upper pad, and the punch passes through the upper clamping plate, the stop plate and the stripper plate to be punched and matched with the corresponding die; The preliminary cutting part includes a first punching station, a downward embossing station, a first trimming station, a second punching station and a second trimming station; the first punching station includes a positioning hole punch and a punch for the part to be cut, and the positioning hole of the steel plate is punched by the positioning hole punch, and the punch for the part to be cut includes a vertical punch and a horizontal punch, which are respectively used to realize preliminary punching of the part to be cut in the vertical direction and the part to be cut in the horizontal direction of the steel plate; the downward embossing station includes a pair of downward embossing punches, which are used to perform downward embossing on the main body of the paired bracket; the first trimming station includes a pair of vertical punches, which are used to realize the punching of the part to be cut in the vertical direction of the steel plate; the second punching station includes a connecting part punch, which is used to realize the punching of the connecting part between the paired brackets; the second trimming station includes a pair of horizontal punches, which are used to realize the punching of the part to be cut in the horizontal direction of the steel plate; The fine processing part includes an upward embossing station, a third punching station and a downward hole turning station; the upward embossing station includes a plurality of upward embossing punches for realizing upward embossing of both ends of the bracket; the third punching station includes a pair of mounting positioning punches for punching the mounting positioning holes at both ends of the bracket, and the bracket has a total of three mounting positioning holes, two at one end and one at the other end; the downward hole turning station includes a hole turning punch for performing a downward hole turning operation on a single mounting positioning hole at the other end of the bracket; The in-mold tapping machine is used to tap the installation positioning hole after the hole is turned downward; The bending and forming part includes a downward bending station, a shaping station and a separation station; the downward bending station includes a first bending punch and a second bending punch arranged in pairs, which are respectively used for bending the two ends of the bracket downward by 90 degrees; the shaping station includes a shaping punch arranged in pairs, which is used for further shaping the two ends of the bracket after being bent by 90 degrees to ensure the accuracy of the bending angle of the bracket; the separation station includes a separation punch, which is used for punching and separating the connecting parts between the paired brackets; The workstations of the preliminary cutting part, the fine processing part and the bending and forming part are all composed of a concave die and a convex die.

2. The bracket shortcut mold according to claim 1, characterized in that: The lower template is provided with a push needle and a steel plate pad. The push needle is provided with an annular groove for fixing the steel plate and limiting the position of the steel plate. The steel plate pad is arranged on the steel plate transmission path; the push needle and the bottom of the steel plate pad are provided with springs. When the push plate is pressed down, the steel plate pad can shrink to be flush with the upper surface of the lower template, and the annular groove of the push needle is flush with the upper surface of the lower template; the push plate is provided with a groove matching the push needle.

3. The bracket shortcut mold according to claim 1 or 2, characterized in that: The preliminary cutting part, the fine processing part and the bending forming part are all provided with guide components, and the guide components include inner guide pillars arranged on the inner wall of the upper pad and inner guide sleeves arranged on the stripping plate and the lower pad corresponding to the inner guide pillars.

4. The bracket shortcut mold according to claim 1, characterized in that: An upper supporting plate is arranged above the upper die seat, and an upper pad is arranged between the upper die seat and the upper supporting plate; a lower supporting plate is arranged below the lower die seat, and a lower pad is arranged between the lower die seat and the lower supporting plate.

5. The bracket shortcut mold according to claim 1, characterized in that: The upper clamping plate and the stop plate are connected to each other via an elastic rubber column.

6. The bracket shortcut mold according to claim 1, characterized in that: The upper die seat and the upper pad, the upper pad and the upper clamping plate, the stop plate and the stripping plate, the lower template and the lower pad, and the lower pad and the lower die seat are all connected by welding.

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