Stamping die for forming bevel tooth blade by utilizing extrusion process
By using an extrusion process to form a stamping die with beveled teeth, the problem of low processing efficiency for specific tooth shapes in thick saw blades was solved, enabling efficient and low-cost large-scale production and ensuring the consistency and stability of product quality.
Patent Information
- Application Number
- CN202423182869.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Existing milling and grinding technologies are inefficient and costly for machining specific tooth profiles in thick saw blades, and are difficult to meet the needs of large-scale production.
The stamping die for forming the beveled toothed blade is formed by extrusion process. The upper rack and lower rack extrusion cutting surfaces work together to achieve automatic cutting using an elastic compression mechanism, thus forming the beveled toothed blade structure.
It improves processing efficiency, reduces manual intervention and costs, ensures product quality consistency and stability, and is suitable for large-scale production.
Smart Images
Figure CN223629363U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to punch mould technical field especially is related to a punch mould of forming bevel tooth edge by extrusion process. BACKGROUND
[0002] In the saw blade processing field, especially for the saw blade with large thickness and needing to be processed to form sharp teeth with a specific inclination angle, the existing milling and gear grinding processing technologies have obvious deficiencies. In terms of milling, the principle is to use a special gear milling machine to make the milling cutter operate on the surface of the saw blade according to the preset tooth profile and inclination angle. However, since each tooth needs to be milled one by one, the material removal amount is large when the saw blade is thick, resulting in low processing efficiency and high cost in large-scale production. At the same time, the milling cutter is under great stress during milling, which wears out quickly, affecting the tooth profile accuracy and yield, and frequent tool changing also increases cost and downtime, and the processing stress easily causes subsequent deformation of the saw blade, damaging the cutting accuracy and service life. Although gear grinding processing can use a gear grinding machine and a special grinding wheel to grind accurate tooth profile, its efficiency is extremely low, and it takes a long time to process thick saw blades due to small grinding amount, which is difficult to meet the batch production demand. Moreover, the gear grinding machine and the grinding wheel are expensive, and the grinding wheel needs to be replaced regularly, and different saw blades need to be matched with different grinding wheels, increasing cost and complexity. In addition, the grinding operation requires high control of the grinding wheel feed amount and speed, and the operator needs to have excellent skills and rich experience, otherwise it is easy to produce waste products, and accurate control also increases the processing difficulty and time cost. Therefore, the existing milling and gear grinding processing technologies have the problem of obvious deficiency in processing efficiency for processing specific tooth profile of thick saw blades. SUMMARY
[0003] The utility model aims at providing a technical scheme that can solve the above problems.
[0004] A punch mould for forming bevel tooth edge by extrusion process, comprising an upper mould body and a lower mould body that are punch matched with each other, a lower saw blade fixing seat is arranged on the lower mould body, an upper saw blade fixing seat and a tooth extrusion punch are arranged on the upper mould body, wherein:
[0005] An elastic compression mechanism is arranged between the upper saw blade fixing seat and the upper mould body, and the elastic compression mechanism is driven to contract after the upper saw blade fixing seat and the lower saw blade fixing seat press the workpiece to be processed, so that the upper saw blade fixing seat contracts to expose the tooth extrusion punch to complete the cutting action with the lower saw blade fixing seat;
[0006] The upper end of the lower saw blade fixing seat protrudes from the lower mold main body, one side of the upper end of the lower saw blade fixing seat is provided with an inclined lower rack extrusion cutting surface, one side of the tooth extrusion cutting knife is provided with an inclined upper rack extrusion cutting surface, the lower rack extrusion cutting surface and the upper rack extrusion cutting surface are arranged as cutting surfaces of the tooth extrusion cutting knife and the lower saw blade fixing seat to complete a cutting action, so that one side of the workpiece to be processed is extruded to form a bevel tooth blade structure.
[0007] Preferably, the upper rack extrusion cutting surface has an embossing surface for embossing one side of the workpiece to be processed to form a bevel tooth blade structure and an extrusion surface extending along the embossing surface, and the extrusion surface is closely matched with the lower rack extrusion cutting surface, so that the waste material extruded from the workpiece to be processed can form a transition section through the close matching of the extrusion surface and the lower rack extrusion cutting surface.
[0008] Preferably, an upper inlay groove is formed in the upper mold main body, a lower inlay groove is formed in the lower mold main body, the upper saw blade fixing seat and the tooth extrusion cutting knife are positioned and installed through the upper inlay groove, the elastic compression mechanism is installed in the upper inlay groove, and the lower saw blade fixing seat is positioned and installed through the lower inlay groove.
[0009] Preferably, the upper inlay groove and the lower inlay groove are both square body structures, and an adapter block that is adapted to the lower saw blade fixing seat is arranged in the lower inlay groove, so that the adapter block and the lower saw blade fixing seat are adapted to form a square body structure embedded in the lower inlay groove, and the spacing between the adapter block and the tooth extrusion cutting knife is matched in the closed mold state.
[0010] Preferably, the elastic compression mechanism comprises a plurality of limiting rods and a compression spring sleeved on each limiting rod, one end of the limiting rod is fixedly connected to the bottom of the upper inlay groove, the upper saw blade fixing seat is guidingly connected to the limiting rod, the upper saw blade fixing seat is limited through the other end of the limiting rod, and the compression spring is abutted between the upper saw blade fixing seat and the bottom of the upper inlay groove.
[0011] Preferably, a positioning pin is arranged on the lower saw blade fixing seat, and a positioning hole matched with the positioning pin is formed on the workpiece to be processed, so that the workpiece to be processed is positioned and placed on the lower saw blade fixing seat through the cooperation of the positioning hole and the positioning pin.
[0012] Preferably, a guide column is guidingly connected between the upper mold main body and the lower mold main body, and the upper mold main body and the lower mold main body are directionally butted through the guide column.
[0013] Compared with the prior art, the utility model has the advantages that:
[0014] The saw blade with the inclined tooth blade structure is extruded and formed through a stamping die by using an extrusion molding method, the upper blade extrusion cutting surface and the lower blade extrusion cutting surface are matched to form the structure of the one side of the workpiece to be processed into the inclined tooth blade in the form of extrusion waste, compared with the traditional milling and gear processing technology, the processing efficiency is greatly improved, especially suitable for large-scale production demand, the processing cycle can be greatly shortened, and the production capacity is improved;
[0015] The structure is designed ingeniously, the coordinated action of the upper saw blade fixing seat and the tooth extrusion cutting knife is realized through the elastic compression mechanism, the workpiece to be processed can be automatically switched to the cutting and extrusion process after being pressed tightly, the production automation degree is effectively improved, the manual intervention link is reduced, and the labor cost and operation failure risk are reduced.
[0016] The stamping extrusion forming process has unique advantages for the saw blade processing of a large thickness and a specific inclined angle tooth blade, the tooth blade shape and angle can be accurately controlled, the consistency and stability of product quality are ensured, the waste rate caused by the processing technology is reduced, the material utilization rate is improved, and the production cost is reduced. Meanwhile, the overall structure of the die is relatively simple, the die manufacturing and maintenance cost is reduced, and the die has good application prospect and popularization value in industrial production, and helps to promote the technological innovation and development of the saw blade processing industry.
[0017] The additional aspects and advantages of the utility model will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the utility model. ACCURACY
[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without paying creative labor.
[0019] Figure 1 It is the explosion structure schematic view of the utility model;
[0020] Figure 2 It is the explosion structure schematic view of the utility model after removing the upper die body and the lower die body;
[0021] Figure 3 It is the cross section structure schematic view of the utility model in the die closed state;
[0022] Figure 4 It is the structure schematic view of A in the utility model; Figure 3
[0023] Figure 5 is the utility model Figure 4 structure schematic diagram of the structure at B in the utility model
[0024] Figure 6 is the utility model Figure 4 structure schematic diagram of the structure at B in the utility model
[0025] The reference signs and names in the drawings are as follows:
[0026] Bevel tooth edge 1, upper die body 10, upper inlay groove 11, lower die body 20, lower inlay groove 21, adaptive block 22, lower saw blade fixing seat 30, lower rack extrusion cutting surface 31, positioning pin 32, upper saw blade fixing seat 40, tooth extrusion punch 50, upper rack extrusion cutting surface 51, impression surface 511, extrusion surface 512, elastic compression mechanism 60, limiting rod 61, compression spring 62. Specific embodiments
[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.
[0028] Please refer to Figures 1-6 In the embodiments of the utility model, a stamping die for forming bevel tooth edge by extrusion process includes upper die body 10 and lower die body 20 stamping matched with each other, lower saw blade fixing seat 30 is arranged on lower die body 20, upper saw blade fixing seat 40 and tooth extrusion punch 50 are arranged on upper die body 10, wherein:
[0029] Elastic compression mechanism 60 is arranged between upper saw blade fixing seat 40 and upper die body 10, after upper saw blade fixing seat 40 and lower saw blade fixing seat 30 compress the workpiece to be processed, elastic compression mechanism 60 can be driven to contract, so that upper saw blade fixing seat 40 contracts and tooth extrusion punch 50 is exposed to complete cutting action with lower saw blade fixing seat 30;
[0030] The upper end of lower saw blade fixing seat 30 protrudes from lower die body 20, one side of the upper end of lower saw blade fixing seat 30 is provided with inclined lower rack extrusion cutting surface 31, one side of tooth extrusion punch 50 is provided with inclined upper rack extrusion cutting surface 51, lower rack extrusion cutting surface 31 and upper rack extrusion cutting surface 51 are arranged as cutting surface for tooth extrusion punch 50 and lower saw blade fixing seat 30 to complete cutting action, so that one side of the workpiece to be processed is extruded to form bevel tooth edge 1 structure.
[0031] In the above technical scheme, the saw blade with the structure of the bevel tooth edge 1 is extruded and punched by the punching die through the extrusion forming mode, which utilizes the cooperation of the upper blade extrusion punching surface 51 and the lower blade extrusion punching surface 31 to form the structure of the bevel tooth edge 1 of one side of the workpiece to be processed in the form of extruded waste material, compared with the traditional milling and gear tooth processing technology, the processing efficiency is greatly improved, especially suitable for large-scale production demand, which can greatly shorten the processing cycle and improve the production capacity.
[0032] The structure is designed ingeniously, the elastic compression mechanism 60 realizes the cooperative action of the upper saw blade fixing seat 40 and the tooth extrusion punching knife 50, can automatically switch to the cutting and extruding process after the workpiece to be processed is pressed tightly, effectively improves the production automation degree, reduces the manual intervention link, and reduces the labor cost and operation error risk.
[0033] The punching extrusion forming process has unique advantages for saw blade processing with large thickness and specific inclined angle tooth edge, can accurately control the tooth edge shape and angle, ensure the consistency and stability of product quality, reduce the waste rate caused by processing technology, improve the material utilization rate, and reduce the production cost.
[0034] Please refer to Figures 5-6 The upper blade extrusion punching surface 51 has a pressure mark surface 511 for forming the structure of the bevel tooth edge 1 of one side of the workpiece to be processed and an extrusion surface 512 extending along the pressure mark surface 511, and the extrusion surface 512 is closely matched with the lower blade extrusion punching surface 31, so that the extruded waste material of the workpiece to be processed can form a transition section through the close cooperation of the extrusion surface 512 and the lower blade extrusion punching surface 31. Through the cooperative action of the pressure mark surface 511 and the extrusion surface 512, in the punching process, one side of the workpiece to be processed first abuts against the lower end of the tooth extrusion punching knife 50, and then the pressure mark surface 511 acts on one side of the workpiece to be processed through the action of the extrusion surface 512, so that one side of the workpiece to be processed is preliminarily formed with the tooth mark, and after the extrusion surface 512 is completely in contact with the workpiece to be processed, the pressure mark surface 511 acts on one side of the workpiece to be processed, extruding one side of the workpiece to be processed to form the structure of the bevel tooth edge 1, and in this process, the extrusion surface 512 and the lower blade extrusion punching surface 31 are also completely connected, cutting off the extruded waste material, and the waste material between the extrusion surface 512 and the lower blade extrusion punching surface 31 during the cutting process is used as a transition section, which can be partially extruded into one side of the bevel tooth edge 1, so as to ensure that the edge of the bevel tooth edge 1 has no material shortage and can be extruded to improve its strength, so that the edge of the bevel tooth edge 1 can have better sharpness and strength.
[0035] Please refer to Figures 1-4 The utility model further proposes that the upper mould main body 10 is provided with an upper inlay groove 11, the lower mould main body 20 is provided with a lower inlay groove 21, the upper saw blade fixed seat 40 and the tooth extrusion punch 50 are positioned and installed through the upper inlay groove 11, the elastic compression mechanism 60 is installed in the upper inlay groove 11, and the lower saw blade fixed seat 30 is positioned and installed through the lower inlay groove 21. The upper inlay groove 11 and the lower inlay groove 21 are both square body structures, and the lower inlay groove 21 is provided with an adaptive block 22 that is docked with the lower saw blade fixed seat 30, so that the adaptive block 22 and the lower saw blade fixed seat 30 are docked to form a square body structure that is embedded in the lower inlay groove 21, and the spacing between the adaptive block 22 and the tooth extrusion punch 50 is matched in the closed die state. By positioning and installing each component through the upper inlay groove 11 and the lower inlay groove 21 provided on the upper mould main body 10 and the lower mould main body 20 respectively, the accuracy and stability of the installation position of each component can be ensured. The upper inlay groove 11 and the lower inlay groove 21 adopt a square body structure, and the adaptive block 22 in the lower inlay groove 21 is docked with the lower saw blade fixed seat 30, which not only makes the structure of each component more stable after installation, but also matches the spacing between the adaptive block 22 and the tooth extrusion punch 50 in the closed die state, providing precise space protection for the punching and extrusion action, which helps to improve the forming precision and quality consistency of the bevel tooth blade 1, and also facilitates the replacement of the lower saw blade fixed seat 30, the upper saw blade fixed seat 40 and the tooth extrusion punch 50 for different sizes of bevel tooth blades 1.
[0036] Please refer to Figures 2-4 The utility model further proposes that the elastic compression mechanism 60 includes a plurality of limiting rods 61 and a compression spring 62 sleeved on each limiting rod 61, one end of the limiting rod 61 is fixedly connected to the bottom of the upper inlay groove 11, the upper saw blade fixed seat 40 is guidingly connected to the limiting rod 61, and the upper saw blade fixed seat 40 is limited through the other end of the limiting rod 61, and the compression spring 62 is abuttingly connected between the upper saw blade fixed seat 40 and the bottom of the upper inlay groove 11. Through the combination of the plurality of limiting rods 61 and the compression spring 62, the upper saw blade fixed seat 40 has a stable and adjustable movement mechanism during the closing die process. The elastic force provided by the compression spring 62 can effectively buffer the impact force when the upper die is pressed down, reduce the risk of damage to the mould and workpiece due to instantaneous impact, and prolong the service life of the mould. At the same time, the guiding and limiting effect of the limiting rod 61 on the upper saw blade fixed seat 40 ensures the linearity and accuracy of the movement of the upper saw blade fixed seat 40, ensures the accurate action cooperation between the upper saw blade fixed seat 40 and the tooth extrusion punch 50 in each punching process, further improves the machining precision and quality reliability of the bevel tooth blade 1, and plays a very key role in the efficient and stable operation of the saw blade punching die, and effectively promotes the optimization and improvement of the entire saw blade machining process
[0037] Please refer to Figure 2The utility model further sets up positioning pin 32 on lower saw blade fixed seat 30, and the workpiece to be processed is provided with positioning hole matched with positioning pin 32, and the workpiece to be processed is positioned and placed on lower saw blade fixed seat 30 through the cooperation of positioning hole and positioning pin 32. The cooperation of positioning pin 32 on lower saw blade fixed seat 30 and the positioning hole of the workpiece to be processed can realize the accurate positioning of the workpiece to be processed in the mould. This can effectively avoid the displacement or deviation of the workpiece during stamping, ensure the accurate position and consistent shape of the bevel tooth edge 1 formed by each stamping, greatly improve the dimensional accuracy and quality stability of the product, reduce the scrap rate caused by positioning deviation, and improve production efficiency.
[0038] In addition, a guide column (not shown in the figure) is also connected between the upper die body 10 and the lower die body 20, and the upper die body 10 and the lower die body 20 are oriented and docked through the guide column. The guide column connected between the upper die body 10 and the lower die body 20 provides accurate guiding action for the opening and closing of the mould. During the mould closing process, the guide column can guide the upper die body 10 to accurately dock with the lower die body 20 along the predetermined direction, ensure the cooperation precision between the tooth extrusion punch 50 and the lower saw blade fixed seat 30, and make the stamping action more stable and reliable. At the same time, the guide column can also share part of the lateral force during the opening and closing of the mould, reduce the wear of the mould parts caused by uneven force, prolong the service life of the mould, reduce the maintenance cost of the mould, thereby improving the reliability and economy of the entire stamping mould system, and laying a solid foundation for efficiently and high-quality producing the saw blade with the bevel tooth edge 1 structure.
[0039] In order to describe in more detail how the technical scheme processes the saw blade, a stamping method for forming a bevel tooth edge 1 by using an extrusion process comprises the stamping mould for forming a bevel tooth edge by using an extrusion process described above, and comprises the following steps:
[0040] Step 1, preparing materials, preparing a metal strip with a corresponding thickness according to the thickness of the saw blade, laying a foundation for subsequent accurate processing, ensuring the adaptability of the material, and reducing processing problems caused by thickness deviation of the material;
[0041] Step 2, preliminary stamping, setting a corresponding pre-stamping mould according to the preliminary shape of the saw blade, feeding the metal strip into the pre-stamping mould through the flattening feeding mechanism, and stamping the metal strip into a preliminary saw blade shape, so that the preliminary stamping saw blade has transversely arranged teeth; through the special pre-stamping mould and the flattening feeding mechanism, the metal strip is efficiently stamped into a preliminary saw blade shape with transverse teeth, realizing the rapid construction of the basic form of the saw blade and providing a positioning and structural basis for the subsequent processing of the bevel tooth edge 1;
[0042] Step 3, extrusion punching, the preliminary punched saw blade is put into the punching die for forming the bevel tooth 1 by extrusion process, the preliminary punching is fixed in the die by the pressing of the lower saw blade fixing seat 30 and the upper saw blade fixing seat 40, and then the bevel tooth 1 structure is further extruded on the preliminary punched saw blade structure by the cooperation of the tooth extrusion punch 50 and the lower saw blade fixing seat 30, compared with the traditional processing process, the extrusion forming method can not only effectively process the saw blade with large thickness, but also can efficiently manufacture the sharp tooth with specific inclination angle, greatly improving the processing precision and the stability of product quality;
[0043] Step 4, demolding and surface treatment, the saw blade punched with the bevel tooth 1 is taken out from the punching die for forming the bevel tooth 1 by extrusion process, and after the inspection, the saw teeth with burr are deburred and then polished, so as to manufacture the finished saw blade; the efficient and high-precision production from the raw material to the finished saw blade can be realized, and the application value and the popularization potential in the saw blade manufacturing field are high.
[0044] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model.
Claims
1. A stamping die for forming a bevel land with an extrusion process, comprising an upper die body (10) and a lower die body (20) stampingly engaged with each other, characterized in that, The lower saw blade fixing seat (30) is arranged on the lower die body (20), the upper saw blade fixing seat (40) and the tooth extrusion punch (50) are arranged on the upper die body (10), wherein: The elastic compression mechanism (60) is arranged between the upper saw blade fixing seat (40) and the upper die body (10), the upper saw blade fixing seat (40) and the lower saw blade fixing seat (30) can drive the elastic compression mechanism (60) to contract after pressing the workpiece to be processed, so that the upper saw blade fixing seat (40) is contracted to expose the tooth extrusion punch (50) to complete the cutting action with the lower saw blade fixing seat (30); The upper end of the lower saw blade fixing seat (30) protrudes from the lower die body (20), one side of the upper end of the lower saw blade fixing seat (30) is provided with an inclined lower tooth extrusion punch cutting surface (31), one side of the tooth extrusion punch (50) is provided with an inclined upper tooth extrusion punch cutting surface (51), the lower tooth extrusion punch cutting surface (31) and the upper tooth extrusion punch cutting surface (51) are arranged as cutting surfaces of the tooth extrusion punch (50) and the lower saw blade fixing seat (30) to complete the cutting action, so as to extrude one side of the workpiece to be processed to form a bevel tooth edge (1) structure.
2. The stamping die for forming a bevel land with an extrusion process according to claim 1, wherein The upper tooth extrusion punch cutting surface (51) has a stamping surface (511) for stamping one side of the workpiece to be processed to form a bevel tooth edge (1) structure and an extrusion surface (512) extending along the stamping surface (511), the extrusion surface (512) is closely matched with the lower tooth extrusion punch cutting surface (31), so that the waste material extruded from the workpiece to be processed can form a transition section through the close matching of the extrusion surface (512) and the lower tooth extrusion punch cutting surface (31).
3. The stamping die for forming a bevel land with an extrusion process according to claim 1, wherein The upper die body (10) is provided with an upper inlay groove (11), the lower die body (20) is provided with a lower inlay groove (21), the upper saw blade fixing seat (40) and the tooth extrusion punch (50) are positioned and installed through the upper inlay groove (11), the elastic compression mechanism (60) is installed in the upper inlay groove (11), and the lower saw blade fixing seat (30) is positioned and installed through the lower inlay groove (21).
4. The stamping die for forming a bevel land with an extrusion process according to claim 3, wherein The upper inlay groove (11) and the lower inlay groove (21) are both square body structures, and the lower inlay groove (21) is provided with an adaptive block (22) which is adapted to the lower saw blade fixing seat (30), so that the adaptive block (22) and the lower saw blade fixing seat (30) are connected after the lower inlay groove (21) is embedded in the square body structure, and the spacing between the adaptive block (22) and the tooth extrusion punch (50) is matched in the closed mold state.
5. The stamping die for forming a bevel land with an extrusion process according to claim 3, wherein The elastic compression mechanism (60) includes a plurality of limiting rods (61) and a compression spring (62) sleeved on each limiting rod (61), one end of the limiting rod (61) is fixedly connected to the bottom of the upper inlay groove (11), the upper saw blade fixing seat (40) is guided and connected to the limiting rod (61), and the upper saw blade fixing seat (40) is limited by the other end of the limiting rod (61), and the compression spring (62) is tightly pressed between the upper saw blade fixing seat (40) and the bottom of the upper inlay groove (11).
6. The stamping die for forming a bevel land with an extrusion process according to claim 1, wherein The positioning pin (32) is arranged on the lower saw blade fixing seat (30), and a positioning hole matched with the positioning pin (32) is arranged on the workpiece to be machined.
7. The stamping die for forming a bevel land with an extrusion process according to claim 1, wherein The upper die main body (10) and the lower die main body (20) are further connected with a guide column in a guided mode, and the upper die main body (10) and the lower die main body (20) are directionally connected through the guide column.