Horizontal long round pipe notching die structure

Abstract

The utility model relates to the field of motor casing manufacturing, in particular to a horizontal type long round pipe notching die structure, which comprises an upper die seat, a lower die seat, a lower die seat, a lower die seat and a lower die seat, and is characterized in that the upper die seat is of a plate-shaped structure, driving slotting tools are fixed around the upper die seat, and stripping polyurethane elastomers are arranged at two ends of the middle of the upper die seat; the lower die base is of a plate-shaped structure, a fixing base is fixed to one end of the middle of the lower die base, an inner die perpendicular to the side face of the fixing base is fixed to one side face of the fixing base, sliding block bases are arranged on the lower die base on the periphery of the inner die, sliding blocks are installed in the sliding block bases in a sliding mode, grooving punches are fixed to the sliding blocks, and the sliding blocks are matched with the driving slotting tools and correspond to the driving slotting tools in a one-to-one mode; the problems that in a device in the prior art, due to the fact that a step-by-step notching technology is adopted for products, the working procedures are numerous, the labor intensity is high, the production efficiency is low, the products have accumulated positioning errors, and the required tolerance requirement is difficult to meet are solved, and the problems that due to the step-by-step working procedures, multiple times of clamping are needed, the products deform, and the roundness tolerance of circular pipes is unqualified are solved.

Description

Technical Field

[0001] The utility model relates to the field of motor casing manufacturing, in particular to a horizontal long round tube slotting die structure. Background Art

[0002] In the production factories of various motor casings, during the production process, many products are completed by cutting flat sheets and then passing through the curling die of a punch press to undergo processes such as curling, buckling, punching, embossing, and cutting notches.

[0003] The slots at different angles on this type of housing have various form and position tolerance requirements such as position and concentricity. For high-precision equipment, the tolerance requirement is very small, and the position is usually 0.08. Therefore, if the stamping process is not completed in the same step, stamping in separate steps will result in cumulative positioning tolerance errors and fail to meet the required tolerance requirements.

[0004] Therefore, product stamping must be completed in the same process. For traditional vertical side punching, when the product that needs to punch two notches on the same side is placed vertically, since the two notches are in the same position, the drive of the lower punch is just blocked by the upper punch and the drive cannot be completed. If the two sets of sliders are made together, the tube is too long and the slider is too high. When the knife is inserted, the slider will tilt sideways, and it is difficult for the slider to slide smoothly, and thus the function of the side punching notch cannot be completed.

[0005] In a long tube through-hole punching die with announcement number CN204108092U, the device is a die proposed to solve the problems of unstable quality, high production cost and too low efficiency caused by machining of long tube through-holes in the prior art. During the mold closing process, the device presses the core rod and the product through the slider, and the punch moves downward with the core rod to complete the first punching, and then continues to move downward to reach the die to complete the second punching, thereby solving the above problems, and thus having the effects of relatively stable quality, low production cost, and improved production efficiency. However, the device can only punch one notch at a time when punching and grooving, and the production efficiency is low. It requires multiple processing steps to complete the punching of multiple notches, and it cannot complete the punching and grooving of both ends at the same time in one process, and thus cannot meet the tolerance requirements of the position of high-precision products. The use of step-by-step stamping will cause product deformation caused by multiple clamping, and the roundness tolerance of the round tube will not be qualified. Utility Model Content

[0006] The utility model provides a horizontal long round tube notching die structure, which solves the problems in the prior art that the product adopts a step-by-step notching process, resulting in numerous working procedures, high labor intensity, low production efficiency, cumulative positioning errors of the product, and difficulty in meeting the required tolerance requirements, as well as the problem that the step-by-step process requires multiple clamping, resulting in product deformation and unqualified round tube roundness tolerance.

[0007] Secondly, the invention solves the problem in the prior art that when the conventional vertical side punching equipment is used, the normal punching process cannot be performed when the product is placed vertically for punching.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A horizontal long round tube notching die structure comprises an upper die seat, which is a plate-like structure, with driving inserts fixed on all four sides, and stripping glue is provided at both ends of the middle part of the upper die seat; a lower die seat, which is a plate-like structure, with a fixed seat fixed at one end of the middle part, and an inner die perpendicular to the side of the fixed seat is fixed on one side of the fixed seat, and a slider seat is provided on the lower die seat around the inner film, a slider is slidably installed in the slider seat, a notching punch is fixed on the slider, and the slider matches and corresponds to the driving insert.

[0010] The utility model designs a side notching die, which can process notches at multiple angles in one processing step, effectively improving production efficiency. At the same time, the notching module, the return spring and the guide rail limit mechanism together constitute a notching die assembly, which is convenient for production and maintenance, and ensures the position of multiple notches and the roundness of the round tube.

[0011] Preferably, the upper mold base is rectangular, a mold handle is fixed to the top surface of the upper mold base, and a rectangular plate-shaped upper mold base is fixed to the bottom surface of the upper mold base, and a driving knife is fixed at each of the four corners of the bottom surface of the upper mold base. The driving knife is columnar and has an inclined bottom. The stripping rubber is fixed at both ends of the center line of the upper mold base.

[0012] Preferably, the lower mold base is rectangular, and a rectangular plate-shaped lower mold plate is fixedly attached to the surface of the lower mold base, a fixed seat is fixed to one side of the surface of the lower mold plate, the fixed seat is a rectangular block, an inner mold is inserted and fixed in the middle, the inner mold is cylindrical and perpendicular to the fixed seat, and the outer periphery of the inner mold is sleeved to fix the product.

[0013] Preferably, a slider seat is fixed at each of the four corners of the lower mold, the middle part of the slider seat is hollow and faces the inner mold, a slider is slidably installed in the slider seat, the slider can slide back and forth in a direction perpendicular to the inner mold, a grooving punch is fixed on the side of the slider close to the inner mold, and a grooving blade is provided on the inner mold corresponding to the grooving punch.

[0014] Preferably, the slider matches the driving insert provided on the upper template, and a slope is provided on the top of the slider, and is parallel to the corresponding slope of the driving insert, and fixed blocks are fixed on the lower templates on both sides of the inner mold, and a return spring is fixed between the fixed block and the slider on the same side.

[0015] Preferably, a plurality of product push rods are provided on the fixed seat, the product push rods are parallel to the inner mold and tangent to the outer periphery of the inner mold, one end of the product push rods is in contact with the product sleeved on the outer periphery of the inner mold, and the other end is connected to the cylinder push plate, and the cylinder push plate is connected to the cylinder.

[0016] Preferably, a through groove matching the shape of the inner mold is provided on the lower mold plate at the bottom of the inner mold, and the through groove runs through the lower mold plate and the lower mold base.

[0017] Preferably, cutting punches are provided at both ends of the middle part of the upper template, and the stripping rubber sleeve is arranged on the outer periphery of the cutting punch located on the upper template, and the stripping rubber corresponds to the two ends of the inner mold respectively.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The utility model can realize punching notches at multiple different positions of the product in one punching. The main features of the punched notches are: 1: the product is a long round tube; 2: the notches of the product are at both ends of the round tube and at the same position. When the product is placed vertically and cannot complete side punching, this structure just solves this common problem, and the punching is stable, the structure is simple, the maintenance is convenient, the mold manufacturing cost is low, and the production efficiency is high.

[0020] When the utility model is adopted, the product is pushed out by the cylinder after the stamping is completed, which can reduce the work intensity of the operating employees, not easily make the operating employees tired, reduce the occurrence of safety accidents, save the manpower cost of stamping, and improve the production efficiency and product quality. The quality of the product has a certain stability.

[0021] The utility model has a wide range of applications. The groups and quantities of sliders can be replaced to meet various production process requirements such as punching, embossing, and notching of different products. It can be flexibly used in different products as needed. The utility model can also be extended to various types of embossing, punching, and notching molds, and thus has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model.

[0023] Figure 2 It is a front view schematic diagram of the overall structure of an embodiment of the utility model when the film is closed.

[0024] Figure 3 It is a front view schematic diagram of the overall structure of an embodiment of the utility model when the film is opened.

[0025] Figure 4 It is a schematic front view of the lower mold structure of an embodiment of the utility model.

[0026] In the figure: mold handle 1, upper mold base 2, upper mold plate 3, driving insert 4, lower mold plate 5, lower mold base 6, stripping rubber 7, grooving punch 8, grooving blade 9, slider 10, return spring 11, product 12, fixed block 13, inner mold 14, fixed seat 15, product push rod 16, cylinder push plate 17, slider seat 18. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the production factories of various motor casings, during the production process, many products are completed by cutting flat sheets and then passing through the curling die of a punch press to undergo processes such as curling, buckling, punching, embossing, and cutting notches.

[0029] The slots at different angles on this type of housing have various form and position tolerance requirements such as position and concentricity. For high-precision equipment, the tolerance requirement is very small, and the position is usually 0.08. Therefore, if the stamping process is not completed in the same step, stamping in separate steps will result in cumulative positioning tolerance errors and fail to meet the required tolerance requirements.

[0030] Therefore, product stamping must be completed in the same process. For traditional vertical side punching, when the product that needs to punch two notches on the same side is placed vertically, since the two notches are in the same position, the drive of the lower punch is just blocked by the upper punch and the drive cannot be completed. If the two sets of sliders are made together, the tube is too long and the slider is too high. When the knife is inserted, the slider will tilt sideways, and it is difficult for the slider to slide smoothly, and thus the function of the side punching notch cannot be completed.

[0031] Although the device of the prior art solves the problems of unstable quality, high production cost and low efficiency caused by machining the through holes of long tubes in the prior art, the device can only punch one notch at a time when punching holes and notching holes, and the production efficiency is low. It requires multiple processing steps to complete the punching of multiple notches, and cannot complete the punching and notching of both ends at the same time in one process, and thus cannot meet the tolerance requirements of the position of high-precision products. The use of step-by-step punching will cause product deformation caused by multiple clamping, and the roundness tolerance of the round tube will not meet the requirements. In order to solve the above problems, this embodiment is provided.

[0032] Reference Figures 1 to 4 For this embodiment, refer to Figure 2This is a front view of the overall structure of this embodiment when the film is closed, referring to Figure 4 This is a schematic diagram of the main view of the lower mold structure of this embodiment. This embodiment is a horizontal long round tube notching mold structure, including an upper mold base, which is a plate-like structure, with driving inserts fixed on all four sides, and stripping glue is provided at both ends of the middle part of the upper mold base; the lower mold base is a plate-like structure, with a fixed seat fixed at one end of the middle part, and an inner mold perpendicular to the side of the fixed seat is fixed on one side of the fixed seat, and slider seats are provided on the lower mold base around the inner film, and sliders are slidably installed in the slider seats, and a grooving punch is fixed on the slider, and the slider matches the driving insert and corresponds one to one.

[0033] The design of this horizontal long round tube notching die structure further reflects the precision and efficiency of the die. A positioning device is designed at the other end of the lower die base to ensure the stability and accuracy of the long round tube during the notching process. The positioning device includes a positioning block and a positioning pin. The positioning block is fixed at one end of the lower die base, and the positioning pin is vertically installed on the positioning block, which fits tightly with the inner wall of the long round tube to ensure that it will not deviate during the notching process.

[0034] In addition, in order to further optimize the notching effect of the die, we also installed elastic buffers on the slider. This elastic buffer can provide a certain buffering effect when the notching punch is notching the long round tube, so as to reduce the impact on the die and the long round tube, thereby improving the service life of the die and the accuracy of notching.

[0035] This embodiment designs a side notching die, which can simultaneously process notches at multiple angles in one processing step, effectively improving production efficiency. At the same time, the notching module, the return spring and the guide rail limit mechanism together constitute a notching die assembly, which is convenient for production and maintenance, and at the same time ensures the position accuracy of multiple notches and the roundness of the round tube.

[0036] Reference Figure 2 This is a front view schematic diagram of the overall structure of this embodiment when the film is closed. The upper mold base described in the figure is rectangular, and a mold handle is fixed on the top surface of the upper mold base, and a rectangular plate-shaped upper mold plate is also fixed on the bottom surface of the upper mold base. A driving knife is fixed at each of the four corners of the bottom surface of the upper mold plate. The driving knife is columnar and has an inclined bottom. The stripping rubber is fixed at both ends of the center line of the upper mold plate. During the punching process, the upper mold base is connected to the punching machine through the mold handle. Driven by the punching machine, the driving knife moves downward to fit with the top of the matching slider, and drives the slider to move toward the inner mold, thereby driving the grooving punch to punch holes. At the same time, the elasticity of the stripping rubber allows the waste material after punching to fall off smoothly, avoiding damage to the mold. The guide column ensures the precise alignment of the upper and lower templates during the punching process, thereby improving the accuracy and stability of the punching.

[0037] Reference Figure 4This is a schematic front view of the lower mold structure of this embodiment, in which the lower mold base is rectangular, and a rectangular plate-shaped lower mold plate is fixedly attached to the surface of the lower mold base, a fixed base is fixed to one side of the surface of the lower mold plate, and the fixed base is a rectangular block, in the middle of which an inner mold is inserted and fixed, the inner mold is cylindrical and perpendicular to the fixed base, and the outer periphery of the inner mold is sleeved to fix the product.

[0038] The lower die base is also rectangular and matches the upper die base. The lower die plate is fixed on the top surface of the lower die base. The surface of the lower die plate is covered with a layer of hard alloy with excellent wear resistance to ensure stability and durability during the punching process. The design of the inner die fully demonstrates its accuracy and stability in fixing the product. This design allows the product to be firmly set on the outer periphery of the inner die, avoiding movement or offset during the product processing, thereby ensuring the processing accuracy and quality of the product.

[0039] At the same time, the fixed seat serves as a support and fixing device for the inner mold. Its rectangular block design not only ensures sufficient stability, but also facilitates positioning and adjustment during processing. The fixed connection between the fixed seat and the lower mold plate further enhances the stability of the entire lower mold structure, allowing the entire mold system to withstand various forces during processing.

[0040] In addition, as part of the lower die base, the lower die plate is designed in a rectangular plate shape so that it can withstand greater pressure and impact, and its surface is flat and smooth, which is convenient for various processing operations. The close fit between the lower die plate and the lower die base ensures the integrity and stability of the mold, so that the mold can maintain a good working condition during the processing.

[0041] A slider seat is fixed to each of the four corners of the lower mold. The middle of the slider seat is hollowed out and faces the inner mold. A slider is slidably installed in the slider seat. The slider can slide back and forth in a direction perpendicular to the inner mold. A notching punch is fixed on the side of the slider close to the inner mold, and a notching blade is provided on the inner mold corresponding to the notching punch. In order to prevent the slider from offsetting or shaking during the sliding process, a guide structure is also provided inside the slider seat. The slider seat is used to guide the movement of the slider. The guide structure can ensure that the slider always maintains a stable trajectory during the sliding process, improve the cutting accuracy, and ensure the precise cooperation between the notching punch and the notching blade. When the slider slides forward, the notching punch will accurately insert into the notching blade to achieve precise cutting of the parts; when the slider slides backward, the notching punch will smoothly exit the notching blade, facilitating the next cutting operation.

[0042] In order to meet the cutting requirements of parts of different specifications and shapes, the design of the slider seat and the slider also has a certain degree of versatility. By replacing the cutting punches of different sizes and shapes, it can adapt to the cutting requirements of different parts, improving the flexibility and applicability of the template.

[0043] Reference Figure 3 This is a front view of the overall structure of this embodiment when opening the film. The slider matches the driving knife provided on the upper template, and the top of the slider is provided with an inclined surface, which is parallel to the inclined surface provided by the corresponding driving knife. The lower templates on both sides of the inner mold are also fixed with fixed blocks, and a return spring is also fixed between the fixed block and the slider on the same side. The return spring is fixed on the fixed block, and when the return spring is connected to the slider, the return spring is in a compressed state within the elastic limit. When the driving knife moves downward and the slider moves toward the inner mold, the return spring is in a stretched state, so that the movement of the slider has a damping force, and the slider has a good damping force, so that the movement of the slider is more accurate.

[0044] Grooving punches are provided at both ends of the middle part of the upper template, and the stripping rubber sleeve is provided on the outer periphery of the groove punch located on the upper template, and the stripping rubber corresponds to the two ends of the inner mold respectively. During the use of the mold, the stripping rubber also plays a vital role. It can effectively help stripping and prevent waste or residual materials generated during the groove punching process from clogging or damaging the mold. At the same time, the material and design of the stripping rubber also fully consider wear resistance and durability, so that it can maintain a good working condition during long-term use.

[0045] Reference Figure 4 The front view of the lower mold structure of this embodiment is shown in the figure. The fixed seat is also provided with a plurality of product push rods, which are parallel to the inner mold and tangent to the outer periphery of the inner mold. One end of the product push rod is in contact with the product sleeved on the outer periphery of the inner mold, and the other end is connected to the cylinder push plate, which is connected to the cylinder. After the stamping of the device of this embodiment is completed, the cylinder push plate is pushed by the cylinder added at the rear, and then the cylinder push rod is driven to eject the product sleeved on the inner mold, thereby realizing semi-automatic unloading, thereby solving the labor intensity of employees in operation, saving employees' physical strength, and reducing unloading time, improving production efficiency, and saving production costs. The lower mold plate at the bottom of the inner mold is provided with a through groove matching the shape of the inner mold, and the through groove runs through the lower mold plate and the lower mold seat. When the device of this embodiment starts working, the through groove is used to collect waste chips generated during processing. During operation, the waste chips on the surface of the product fall into the through groove, which is convenient for collecting waste chips, avoiding affecting processing, reducing cleaning difficulty, and reducing cleaning time.

[0046] The beneficial effects of this embodiment are as follows:

[0047] The device of this embodiment mainly solves the problem that the operating staff has to insert the product and then put it into the mold to punch the notch, and burrs will be generated after the notch is punched, and the product is tightly clamped in the die and is not easy to take out. If the size of the inner mold is designed to be small for smooth demolding, the round tube will be easily deformed when the notch is punched, and the roundness accuracy of the product does not meet the standard. The device of the prior art requires employees to manually remove the materials, which is laborious and easy to cause fatigue. Manual demolding is prone to work-related accidents. The device of this embodiment only requires employees to directly insert the product into the inner mold, start the punch press, and press the punch start button. After the punching is completed, a cylinder is installed directly behind the device of this embodiment. After the stamping is completed, the thrust of the cylinder is used to push the product out of the inner mold, which can reduce the problem of the product being too tight in the die core caused by the stamping burrs and the product being unable to be smoothly taken out of the die core, and at the same time can avoid the occurrence of safety accidents.

[0048] Secondly, the device of this embodiment solves the problem of the number of notches that require multiple stampings to complete. The device of this embodiment can complete the stamping of multiple notches at both ends of the long tube at one time through the notching punches on both sides and the top of the inner mold, meeting the requirements for position and roundness of precision products (usually within 0.08 for position, and some even have higher requirements, roundness within 0.08). It is convenient and easy for employees to operate, and there is no need to work hard to take out the product, which solves the time wasted in the middle and greatly improves production efficiency. In addition, one-time stamping also solves the quality problem of missed punching caused by multiple stampings.

[0049] Finally, the device of this embodiment also solves the mold structure of the traditional side punching product placed vertically for punching. The product is placed vertically because the product is too long and the punch die height is limited. At the same time, the upper and lower notches are in the same position. Because the insert knife of the upper side punch will block the punch drive of the lower notch, the two notches cannot be punched simultaneously. If the upper and lower notch punches are fixed to one slider, because it is a long tube, the slider is too high. When the punch slider moves down, the insert knife will contact the top of the slider. Because it is too high, the insert knife cannot contact the lower part of the slider at the same time. At this time, the slider is unevenly stressed and causes tilting, the punch and the blade cannot be well aligned, and there will be a deviation between the punch and the blade, thereby damaging the blade. Therefore, one insert knife cannot complete the drive of the punch, so the problem of vertical notching of the product cannot be completed. The product of the device of this embodiment is not placed vertically, and a horizontal insertion method is adopted to complete the notch punching at both ends of multiple different angles, which not only ensures the position requirements of multiple notches of the product, roundness requirements and other geometric tolerance requirements, improves production efficiency, but also improves product quality.

[0050] In addition, the grooving punch is fixed in an insert type, which is convenient for maintenance and replacement, with low production cost, easy replacement, and convenient size adjustment of the product.

[0051] In addition to the above-mentioned embodiments, within the scope disclosed in the claims and the specification of the utility model, the technical features or technical data of the utility model can be reselected and combined to form new embodiments, which should also be regarded as specific embodiments of the utility model and within the protection scope of the utility model.

Claims

1. A horizontal long round tube notching die structure, characterized in that: include: The upper die seat is a plate-shaped structure with driving inserts fixed around it, and stripping glue is provided at both ends of the middle of the upper die seat; The lower die seat is a plate-like structure, with a fixed seat fixed at one end of the middle part, an inner die perpendicular to the side of the fixed seat fixed to one side of the fixed seat, and a slider seat is provided on the lower die seat around the inner film, a slider is slidably installed in the slider seat, a grooving punch is fixed on the slider, and the slider matches and corresponds to the driving insert one by one.

2. The horizontal long round tube notching die structure according to claim 1 is characterized in that: The upper mold base is rectangular, a mold handle is fixed on the top surface of the upper mold base, and a rectangular plate-shaped upper mold plate is fixedly attached to the bottom surface of the upper mold base. A driving knife is fixed at each of the four corners of the bottom surface of the upper mold plate. The driving knife is columnar and has an inclined bottom. The stripping rubber is fixed at both ends of the center line of the upper mold plate.

3. The horizontal long round tube notching die structure according to claim 2 is characterized in that: The lower mold base is rectangular, and a rectangular plate-shaped lower mold plate is fixedly attached to the surface of the lower mold base. A fixed seat is fixed to one side of the surface of the lower mold plate. The fixed seat is a rectangular block, and an inner mold is inserted and fixed in the middle. The inner mold is cylindrical and perpendicular to the fixed seat. The outer periphery of the inner mold is sleeved to fix the product.

4. The horizontal long round tube notching die structure according to claim 3 is characterized in that: A slider seat is fixed to each of the four corners of the lower mold, the middle part of the slider seat is hollow and faces the inner mold, a slider is slidably installed in the slider seat, and the slider can slide back and forth in a direction perpendicular to the inner mold, a grooving punch is fixed on the side of the slider close to the inner mold, and a grooving blade is provided on the inner mold corresponding to the grooving punch.

5. The horizontal long round tube notching die structure according to claim 4, characterized in that: The slider matches the driving insert provided on the upper template, and a slope is provided on the top of the slider, which is parallel to the corresponding slope of the driving insert. Fixed blocks are also fixed on the lower templates on both sides of the inner mold, and a return spring is also fixed between the fixed block and the slider on the same side.

6. The horizontal long round tube notching die structure according to claim 1 or 3, characterized in that: The fixing seat is also provided with a plurality of product push rods, which are parallel to the inner mold and tangent to the outer periphery of the inner mold. One end of the product push rod is in contact with the product sleeved on the outer periphery of the inner mold, and the other end is connected to the cylinder push plate, and the cylinder push plate is connected to the cylinder.

7. The horizontal long round tube notching die structure according to claim 3, characterized in that: A through groove matching the shape of the inner mold is provided on the lower mold plate at the bottom of the inner mold, and the through groove runs through the lower mold plate and the lower mold base.

8. The horizontal long round tube notching die structure according to claim 2, characterized in that: The two ends of the middle part of the upper template are provided with cutting punches, and the stripping rubber sleeve is arranged on the outer periphery of the cutting punch located on the upper template, and the stripping rubber corresponds to the two ends of the inner mold respectively.

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