TW550144B - Method for manufacturing a wrench - Google Patents

Abstract

This invention relates to a method for manufacturing a wrench, comprised of a plurality of manufacturing processes, comprising the steps of: forming a wrench head; forging, terminating, welding, reforming, heat treating and surface treating a solid metal rod to form a hollow rod. By adopting such a manufacturing process, not only can the process be quickly performed while the time and material may be conserved. In addition, the wrench handgrip made by the hollow rod can reduce the wrench weight dramatically. In addition, the wrench is capable of sustaining high impacts, consists of tougher and stronger features as compared to the conventional metal rod. This invention makes breakthroughs to the bottlenecks encountered during making of conventional wrenches, and meets the low cost, light weight, high strength and high production rate.

Description

550144 1 > Description of the invention (l) [Field of the invention] The present invention relates to a method for manufacturing a wrench, and more particularly to a method (2) for manufacturing a wrench. Description of conventional backgrounds] According to the history of ratchet socket wrenches, it is made by hot forging with dozens of rulers from the iron materials of ratchet wrenches currently on the market. Its weight is not only heavy (especially) Rhenium is a burden, and the entire branch is likely to cause stress concentration during the actual process. Therefore, the bending deformation force of the photo is relatively weak. Furthermore, it requires a lot of materials to make it. No. 53538 "Ratchet wrench patent case, which uses the straight end U of the plate material, the neck 13 and the wrench part of the handle to be solid. Another custom wrench directly forges the head and handle with the same solid system. There are many handles in these custom-shaped wrench bodies, which not only increases the weight of talents in production, but also the load of the weight of this handle, which accelerates the protagonist of the user's physical strength. A hundred-year-old sleeve is used to pull screws or nuts. In terms of structure, it is a solid weight that is quite heavy, and a solid ratchet wrench (large size L). The wrench is more forged than forged In terms of manufacturing cost, the wrenches made of steel pipes can bear the minimum amount of the entire forging and forging. At least one copy of each die is required. Please refer to the attachment 1 for a method of forming one body of the male hand. There are end holes 12 and head body 10, so the manufacturing method and structure of the handle body of the wrench body 10 is a wrench body. The handle body of the wrench body is solid, such as the stamping method and the forging method. Consumption of materials is equivalent to the cost of materials. A larger increase will increase the wear and tear of the user when operating the wrench, which relatively reduces the effectiveness of the work.

i

550144 V. Description of the invention (2) ----— <? The derivation of the material mechanics formula shows that the wearing surface modulus of the solid tube is 0-1, the cross-section modulus of the hollow tube is equal to the maximum vertical stress, Hollow tubes have higher bearing capacity than solid tubes: Therefore, the stress that solid tubes can withstand is lower than hollow tubes, so it is necessary to add them. x ^ In view of this, in order to solve this problem, the inventor is determined to rely on his many years of experience in hand tool manufacturing and research and development, hoping to create a practical civilization. After many developments and improvements, the present invention has been carefully designed. Wrench 丄 manufacturing method (2), which can overcome all the shortcomings derived from conventional wrenches, and Chunyi has a very novel and progressive invention. , ...

The process of combining a kind of process and the processing of the bar material and the resistance to conflict can bring about another requirement. It is actually made of a quite spanner, which is hollow forged, which saves a lot of wrench handles in manufacturing. The impact force and toughness are traditionally used to pull the peak. According to the present invention, several kinds of processing systems are used, and then the metal is solid processed and finished at the surface. The material is hollow and the wrench has a high material, which is a practical hand tool industry. Mass production of the intensity of Ming ,. Manufacturing method (2), the process of pre-setting, tailing, welding, and welding of the wrench head can not only save time and material costs, but also greatly reduce the bottleneck and strength of the wrench compared to the passer structure. The sex and the former are mainly formed first, the shape, the asset is quickly specialized, and the weight of the volume is a solid and curative replacement for the light and futuristic fragrance of the country.

[Detailed description of the invention] The present invention relates to a method (2) for a fighter of a wrench. Please refer to the first

550144 u__-V. Description of the invention (3) The simplified process shown in the figure is schematic, and this wrench system is mainly made by combining several types plus X, and the manufacturing process (-) can be very fast Complete the processing, and can save a lot of time. Material = Ren Geng 玎 greatly reduced the weight of the handle of the J wrench f, reducing the operating load, and the processing technology of each program are head molding, bar material fabrication, tailing, The process of welding, shaping, heat treatment and surface treatment, and finally to the finished product have a total of seven steps. When discussing the following process steps, please refer to the process shown in the first figure to show exhaustion and benefit. * The heart effect is based on the above steps. The description is as follows: "I" head molding: Please refer to the first and second figures at the same time, first forge or cast the wrench head 20. One end of the head 20 is formed with a joint 2j. "Π" Bar Hollow Forging: At this stage, solid metal bars 丨 〇 are hollow forged first, and the diameter of the first end 11 of the bar 10 is reduced to be smaller than the original pipe diameter, so as to facilitate the connection with the head 2〇 In combination, the second end 12 of the rod 10 is forged to form a hollow open shape, which is thicker than the first end 11 of the rod 10, which allows the operator to have a better grip to facilitate force application. . "HI" tailing: At this stage, the second end 12 of the rod 10 is subjected to tailing processing, so that the second end 12 of the rod 10 that was originally open is formed into a closed shape, so as to make dirt and foreign matter dirty. It does not enter through the second end 12 of the rod 10, and makes the rod 10 more beautiful. "IV" Welding: At this stage, the preformed wrench head 20 is welded to the 10th bar.

Page 6 550144 V. Description of the invention (4) One end 11 constitutes a complete spanner 1 c "V" Integer: At this stage, the unevenness of the outer edge of the rod 10 0 is lightened and so on to make the spanner Trimming the rough surface of W to grind and repair, polishing "VI" heat treatment: Zhen Jiu α's surface. At this stage, the wrenches will be heat-treated, and the internal molecules will be rearranged and combined to make them more uniform, so as to harden. The hardness of other parts of the rod 10 can be compared, and the n-folds, joints and "w" surface treatment are improved. · Strength and hardness. At this stage, the wrench 1 after the heat treatment is processed by shaking, sand blasting, and dyeing with a shovel, and the wrench is 1 grade. After the completion of the wood, sub-plating and other steps, as shown in the third figure of c, the seven craft-level personnel of the head molding, post-finding, welding, shaping, heat treatment, and surface treatment of the present invention need to be long.时 ΐ 所 1 右 夕 ΐ can be used to improve work efficiency, and the wrench can break through the traditional solid iron material is still up. The badge has the bottleneck of the traditional wrench structure, replacing the domestic hand tool production ^ It is a rainy peak to achieve low-cost, light-weight, high-strength quantities, which is really a practical and forward-looking invention; mainly = what you can see in the fourth picture on the face, which is the second of the invention A manufacturing method comprising the step of encapsulating the third step of the first manufacturing method and the welding step

550144

There are seven steps in the process, such as shrinking, welding, tailing, shaping, and finishing to the finished product. The process shown in the fourth figure is described below. The techniques are head molding and rod. In the process of hollow heat treatment and surface treatment, when discussing the following process steps, please indicate, and describe the head of "ϊ" separately for the above procedures: 参阅 Refer to the fourth and fifth figures at the same time. 20 Forging or casting, one end of the head 20 is formed with a joint 21. "E" Bar Hollow Forging:

This 1¾ section is first hollow-forged a solid metal rod 10, and the diameter of the first end 11 of the rod 10 is reduced to be smaller than the original diameter, so as to facilitate the settlement with the head 20, the rod The second end 12 of 10 is forged to form a hollow open shape, which is thicker than the first end 11 of 10, which makes the operator have a better grip to facilitate force application. "ΠΙ" Welding: At this stage, the preformed wrench head 20 is welded to the / end 11 of the rod 10. "IV" trailer:

At this stage, the second end 12 of the rod 10 is subjected to tailing processing, so that the original second end 12 of the rod is formed into a closed shape. Enter 'and make the bar 10 more beautiful, and constitute a complete wrench 1. "V" shaping ... At this stage, the unevenness of the outer edge of the bar 10 is ground, repaired, polished and polished.

Page 8 550144 V. Description of the invention (6) Light and other steps, then the rough chain surface of the wrench 1 will be trimmed "VI" Heat treatment: At this stage, the wrench will be heat-treated and hardened at this stage, but some parts can be rearranged The combination is more even, which makes the hardness of the f-fold and other parts of the rod composite be comparable, and improves the strength and

"VB" surface treatment: X This stage is the surface treatment of the heat treated wrench 丨 the wrench 1 is completed by vibration, sandblasting, blackening or electroplating, which is the finished product 0

The second manufacturing method of the present invention is a manufacturing method; the product obtained by the method is exactly the same as that shown in the above FIG. 6 and is the third manufacturing method of the present invention, which is mainly the first manufacturing method of the first manufacturing method. The three-step tailing is cancelled and a capping process is added. The processing technology of each program is the process of head forming, hollow forging of bars, welding, whole pear, heat treatment, surface treatment and capping. Seven procedures, when discussing the following procedures, please cooperate with the flow diagram shown in Figure 6, and the following procedures are described as follows: "I" forging of the head: Please refer to Figures 6 and 7 at the same time First, the wrench head 20 is forged or cast, and one end of the head 20 has a joint 21. "Π" Bar Hollow Forging: At this stage, the solid metal bar 1 0 ′ is hollow forged first, and the diameter of the first end 11 of the bar 1 0 ′ is reduced to facilitate the combination of the wrench head.

550144 V. Description of the invention (7) The second end 12 of the rod 10 is forged to form a hollow and open shape, which is relatively thick compared to the first end 11 of the rod 10 ′, so that the operator has a better Grip feeling for easy force application. "ΙΠ" Welding: At this stage, a preformed wrench head 20 is welded to the rod 10 and the first end 11 'to form a wrench Γ. "IV" Shaping: At this stage, grinding, repairing, polishing and other steps are performed on the uneven surface of the rod 10 and the outer edge to trim the rough surface of the wrench 1 to a smoother surface. π "V" heat treatment: At this stage, the wrench will be heat-treated and hardened. The internal molecules can be rearranged and combined more uniformly, making ΐ and ίΠϊ; the hardness is the same, and the strength of the wrench r is increased ~ and hard δ Degree, and not easily brittle. 1 《VI》 Surface treatment: This stage is the surface treatment of the heat treated wrench i. After shaking, sandblasting, blackening or plating, etc., to obtain a better surface of the counter-hand. "VII" stamp This stage is the surface treatment of rod 10, where = 3. : Make rod i. The second end J, which was originally open, was closed by the second cover, so that the dirt and foreign objects would not enter through the rod 10, and the two ends 12 would make the rod 10 more beautiful. For finished products

Page 10 550144 V. Description of the invention (8) Please refer to the process of air forging and melting. The usefulness and forward-looking of the finished plate handle are from (2) above. The practical invention of the invention is shaped, reshaped, Heat treatment weight, and the solid iron material is also a light, high strength invention for domestic hands. From the perspective of the same or similar patent laws and regulations that have not been seen in any of the laws of the 19th, the eighth figure of the eighth figure, the completeness of the completion of the Department of the detailed description of the breakthrough, here is a kind of metal processing and table wrench As shown in the mass production of real tools, through the manufacture of the head type, heat treatment and surface treatment wrench of the present invention, the 10 bars of the bar material reduce the weight of the wrench, which is clear. It can be clearly seen that the present invention relates to a method for manufacturing a neck of a wrench, which is discussed in the above points: The manufacturing method of the wrench (2), the solid bar material is processed by the process of hollow forging surface processing, which can have impact resistance and toughness. Breaking through all traditional wrench industries brings another peak to meet the requirements of the chemical industry, which is quite unique. The invention with a very high industrial utilization price appears in domestic and foreign publications or publicly agreed positive and negative elements. It should be stated The present invention does have the previously published publications, which are quite progressive and novel, and it has 20 requirements. It is based on the law that the six parts of the molding, bar, and stamping system are made according to law. The manufacturing method by hand is a very industrial advantage. It is the bottleneck of the wrench, the end of the package, the welding, the reduction of the wrench and the strength are all more than the bottlenecks of the traditional structure. It has not been used, and it has already been granted an invention patent. The nature of the innovative process is in line with China's patent application. 550144 [Brief description of the drawings] Brief description of the drawings. The first picture is a schematic diagram of the manufacturing process of the present invention. The second picture: is a schematic diagram of the manufacturing cross-section of the present invention. αα SL · Body view Fourth figure: Schematic diagram of the manufacturing process of the second manufacturing method of the present invention. Fifth figure: Schematic diagram of the manufacturing cross section of the second manufacturing method of the present invention. Figure • Schematic diagram of the manufacturing process of the third manufacturing method of the present invention. Figure 7 • Schematic diagram of the manufacturing cross section of the third method of the present invention. Figure 8 • This is a three-dimensional view of the finished product of the third method of the present invention. Attachment _ _ is the body stamping method of the ratchet wrench of the factory No. 153538 J Patent Case 0 [Reference number in the figure] 1 1 • Wrench 1 0 Bar 1 1 First end 1 2 • Second end 2 0 • Head 3 0 Cover 1 9 Wrench 1 0 ， bar 1 1 ， first end 1 2 9 • First JL Mountain Page 12 11 ^

Claims (1)

550144 / 、 'Patent application Fan Yuangong · A method of manufacturing a wrench (-head forming; (-), including the following steps: Yihu ~, hollow forging of the material: hollow forging of the bar, and the pipe diameter is reduced, and The other end of the bar is silver 1. The bar-a shobo is forged to form a hollow open makeup. Two-pack tail: The other end of the bar is covered with a j-shape to form a closed shape; 仃 dagger processing to make the bar The other end is one = connection: the pre-formed head is dissolved on one end of the bar, and the strong structural hardness includes the following steps: Five heat treatments: heat treatment to harden the wrench to improve the wrench u manufacturing methods (two) a · Head forming; Part 2 · Hollow forging of rods: hollow forging of rods to make them rod-shaped; the diameter of the mouth is reduced, and the other end of the rod is forged to form a hollow opening. The preformed head is welded to one end of the bar; 4. 6-end split dagger: the other end of the bar is processed to make the other end of the bar become closed and constitute a wrench; five hardness Heat treatment: heat the wrench Strengthen the hardening of the wrench to increase the strength of the wrench (1. The manufacturing method of the wrench as described in item 1 of the scope of patent application ^ 7, 'where the welded wrench can be shaped', and the unevenness of the wrench can be ground and trimmed. Manufacturing method of the wrench as described in the scope of patent application No. 2 Page 13 55〇44 'Zhongjing patent scope'), in which the wrench behind the tail can be shaped ^ flattened and ground. , The method of the wrench (Ί! Please manufacture the wrench c2 described in item 1 or 2 of the patent scope), in which the heat treatment can be promoted—making the square black or electroplating. ^ Wrench vibration, sand blasting, and dyeing, including the following steps: 6 β —A method of manufacturing wrenches (21 head molding; ~ surname one, hollow forging): hollow forging the rod to make the rod The diameter of the material is reduced, and the other end of the bar is forged to form a hollow and open shape. # Two fusion welding: Weld the preformed head to one end of the bar, and construct a ~ spanner; Four heat treatment: perform the spanner Heat treatment hardening, increase the strength of the wrench, π degree 0. Six caps: Install a cover on the other end of the bar to make the bar shape and wart into a closed shape. The manufacturing method of wrench mentioned in part (2), in which the wrench after welding can be shaped, and the unevenness of Jiang's wrench can be ground and trimmed. 8 · The manufacturer of the wrench described in item 6 of the scope of patent application $ Black servant (2), in which the heat-treated wrench can be subjected to surface treatment such as vibration, sand blasting or electroplating. Page 14