Manufacturing method of golf iron head
By employing a continuous processing step involving material preparation, bending, and cutting, the material control challenges in golf club head manufacturing have been solved, resulting in efficient production and cost reduction.
Patent Information
- Application Number
- CN202410552017.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2025-11-07
AI Technical Summary
In the current manufacturing process of golf club heads, the high-temperature forging of materials makes it difficult to control dimensional accuracy, has a large impact from thermal expansion and contraction, and requires additional precision machining, which increases costs.
The process involves a series of steps including material preparation, bending, neck forming, and cutting. A forming machine and a stamping machine are used to form the bent part and striking face of the golf iron head. Material deformation is controlled by molds and dies to reduce waste.
Simplify processing steps, reduce production costs and defect rates, and improve material utilization and mechanical strength.
Smart Images
Figure CN120900181A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present invention relates to a manufacturing method of a golf iron head. BACKGROUND
[0002] With the increasing progress of society and the improvement of people's living standards, leisure activities are also rich in changes. Therefore, golf is a sport that combines interest and skill and is popular among people of all ages. Golf can be practiced alone on a golf course, and of course, it can also be practiced with like-minded people on a golf course. Different golf course forms are presented by the wide terrain and landscape of the natural environment, providing a relaxing walk during the golf game. Not only does it add a challenge to the game by changing the terrain, but it also helps to relieve stress by immersing oneself in the natural environment throughout the game. Therefore, the popularity of golf has led to the gradual attention to golf clubs and other equipment.
[0003] Currently, the golf club head is made by casting and forging methods. Referring to Figure 1 , Taiwan Province Gazette No. I270421 "Golf Head Constant Temperature Forging Method", which discloses the steps of material cutting, constant temperature forging, shape processing, and surface treatment. That is, the pre-material and the forming die are heated to the same temperature condition for forging, and the shape contour of the forged part is then trimmed and the surface is treated. Therefore, the method of forging the forged part can be completed. However, during the forging process, the material and the forming die must be kept at a high temperature throughout the process to perform the processing program. Because the process is performed at high temperature, not only is energy consumed, but hot forging is also used as the main process, which can cause the golf club head to be easily affected by thermal expansion and contraction during forging, resulting in difficulty in controlling the size accuracy. Therefore, the size must be designed larger during the hot forging process to accommodate the additional finishing process for the excess material, which increases the processing cost. Therefore, it needs to be improved. SUMMARY
[0004] Therefore, the purpose of the present invention is to provide a manufacturing method of a golf iron head that can reduce material consumption, eliminate waste generation, fully utilize materials, improve strength, accelerate molding, and significantly reduce production costs.
[0005] Therefore, the manufacturing method of the golf iron head is used to manufacture a golf iron head, and the manufacturing method of the golf iron head comprises a material preparation step, a bending and pressing step, a neck forming step and a cutting step. The material preparation step is provided with a metal blank, and the metal blank has a neck area in a cylindrical shape, a face area in a cylindrical shape, and a connecting area connected to the neck area and the face area respectively. The maximum outer diameter of the face area is greater than the maximum outer diameter of the neck area, and the connecting area is in a truncated cone shape. In the bending and pressing step, a forming machine is used to perform a bending and pressing operation on the metal blank. The forming machine has a forming die and a punch corresponding to the forming die. The forming die has a first die cavity surrounded by a peripheral wall, a second die cavity surrounded by a wall, and a surplus material opening provided at the position of the first die cavity. The first die cavity has the appearance profile of the hitting part of the golf iron head, and the second die cavity has the appearance profile of the transition part of the golf iron head. In the bending and pressing operation, the metal blank is first placed in the forming die so that the connecting area is accommodated in the second die cavity and the face area is accommodated in the first die cavity. Then, the punch is used to press the connecting area and the face area so that the connecting part between the connecting area and the face area is bent to form a connecting surface connected to the neck area and a connecting surface connected to the connecting surface and extending to the face area. The connecting surface and the connecting surface are connected at an angle and correspond to the appearance profile of the transition part of the golf iron head, thereby forming the bending part of the golf iron head. The pressing action of the punch also causes the face area to expand and fill the first die cavity to form a hitting surface connected to the connecting surface. The hitting surface corresponds to the appearance profile of the hitting part of the golf iron head. The surplus waste generated during the pressing process is accumulated in the surplus material opening. After the hitting surface is separated from the forming die, the accumulation of the surplus waste forms a waste block on the hitting surface. In the neck forming step, a punch machine is used to perform a pressing operation on the metal blank. The punch machine has a die and a punch corresponding to the die and capable of generating a pressing displacement. In the pressing operation, the neck area of the metal blank is first placed in the die to clamp the outer periphery of the neck area. Then, the punch is used to press the end of the neck area that is not clamped so that the end of the neck area is extended by the pressing action of the punch to form an extension and a depth slot formed around the extension, thereby forming the round rod of the golf iron head. In the cutting step, a cutting machine is used to perform a cutting operation on the metal blank. The cutting machine includes a cutting tool that cuts the surface of the hitting surface formed by the bending and pressing step to be flat and simultaneously cuts the waste block, thereby obtaining the golf iron head.
[0006] As a further improvement of the present invention, the neck forming step is performed after the material preparation step, the bending and pressing step is performed after the neck forming step, and the cutting step is performed after the bending and pressing step.
[0007] As a further improvement of the present invention, the neck forming step is performed after the material preparation step, the bending and pressing step is performed after the neck forming step, and the cutting step is performed after the bending and pressing step.
[0008] As a further improvement of the present invention, the die of the punch press includes two opposite die blocks that can tightly close to a closed die state to clamp the outer periphery of the neck portion so as to avoid the maximum outer diameter of the neck portion from being changed improperly in the neck forming step.
[0009] As a further improvement of the present invention, the side of the face portion opposite to the hosel portion is arc-shaped.
[0010] Compared with the prior art, the present invention has the following beneficial effects:
[0011] The present invention can effectively simplify the manufacturing process of the golf club head, effectively avoid the generation of improper waste, and greatly reduce the production cost and the defective rate. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 is a flowchart of the golf club head constant temperature forging method of the prior art Chinese Taiwan Province Patent No. I270421.
[0013] Figure 2 is a flowchart of the first preferred embodiment of the present invention.
[0014] Figure 3 is a bending and pressing step flowchart of the first preferred embodiment.
[0015] Figure 4 is a neck forming step flowchart of the first preferred embodiment.
[0016] Figure 5 is a cutting step flowchart of the first preferred embodiment.
[0017] Figure 6 is another embodiment of the metal blank of Figure 3 .
[0018] Figure 7 is a flowchart of the second preferred embodiment of the present invention.
[0019] SYMBOL DESCRIPTION:
[0020] (the present invention)
[0021] 3: Manufacturing method of golf iron heads
[0022] 31: Material Preparation Steps
[0023] 32: Bending and pressing steps
[0024] 33: Neck Shaping Steps
[0025] 34: Cutting Steps
[0026] 321: Molding machine
[0027] 321a: Molding mold
[0028] 321b: Punching tool
[0029] 331: Stamping machine
[0030] 331a: Mold
[0031] 331b: Stamping Die
[0032] 341: Cutting machine
[0033] 341a: Cutting tools
[0034] 4: Golf iron heads
[0035] 41: Connecting surface
[0036] 42: Connecting surface
[0037] 43: Strike surface
[0038] 44: Round rod
[0039] 45: Bending section
[0040] 44a: Slot
[0041] a: Metal blank
[0042] a1: Neck area
[0043] a2: Clubface area
[0044] a3: Connecting area
[0045] b1: Zhoubi
[0046] b2: First mold hole
[0047] b3: wall
[0048] b4: Second mold hole
[0049] b5: Residual material outlet
[0050] c: Waste block
[0051] d1: maximum outer diameter of neck region
[0052] d2: maximum outer diameter of face region
[0053] α: included angle DETAILED DESCRIPTION
[0054] The foregoing and other technical contents, features and effects of the present application will become apparent from the following detailed description of the preferred embodiments with reference to the drawings.
[0055] Referring to Figure 2 , Figure 3 The manufacturing method 3 of the golf iron head of the present application is used to manufacture a golf iron head 4, which includes a round shaft 44 extending toward a direction, a striking face 43 extending toward another direction, and a bending portion 45 formed between the round shaft 44 and the striking face 43. In the first preferred embodiment of the present application, the manufacturing method 3 of the golf iron head includes a material preparation step 31, a bending and pressing step 32, a neck forming step 33, and a trimming step 34, etc. The material preparation step 31 is provided with a metal blank a, which has a neck region a1 in a cylindrical shape, a face region a2 in a cylindrical shape, and a connecting region a3 connected to the neck region a1 and the face region a2, respectively. The maximum outer diameter d2 of the face region a2 is greater than the maximum outer diameter d1 of the neck region a1, and the connecting region a3 is in a truncated conical shape. Of course, the side of the face region a2 opposite to the connecting region a3 is in a circular arc shape, as shown in Figure 6 Fig. 2, so as to meet different working requirements and facilitate rapid processing and forming. The following will be described by taking the drawings as examples.
[0056] Subsequent to the foregoing, the bending and pressing step 32 is provided with a molding machine 321 (schematically shown in the figure) to perform a bending and pressing operation on the metal blank a, the molding machine 321 is provided with a molding die 321a and a punch 321b corresponding to the molding die 321a, wherein the molding die 321a is provided with a first die cavity b2 surrounded by a peripheral wall b1, a second die cavity b4 surrounded by a wall b3, and a scrap port b5 formed at a position of the first die cavity b2, the first die cavity b2 has the appearance contour of the striking portion of the golf iron head 4, and the second die cavity b4 has the appearance contour of the turning portion of the golf iron head 4, so that in the bending and pressing operation, the metal blank a is first placed in the molding die 321a so that the connecting portion a3 is accommodated in the second die cavity b2 and the face portion a2 is accommodated in the first die cavity b1, and then the punch 321b is used to press the connecting portion a3 and the face portion a2 so that the connecting portion a3 and the face portion a2 are bent at the joint therebetween to form a connecting surface 41 connected to the neck portion a1 and a connecting surface 42 connected to the connecting surface 41 and extending to the face portion a2, and the joint of the connecting surface 41 and the connecting surface 42 forms an angle a corresponding to the appearance contour of the bending portion 45 of the golf iron head 4, so that the bending portion 45 of the golf iron head 4 is formed, the pressing operation of the punch 321b also causes the face portion a2 to be expanded and filled in the first die cavity b2 to form a striking surface 43 connected to the connecting surface 42, the striking surface 43 corresponds to the appearance contour of the striking portion of the golf iron head 4, and the scrap produced in the pressing operation is accumulated at the scrap port b5, so that after the striking surface 43 is separated from the molding die 321a, the accumulated scrap forms a scrap block c on the striking surface 43.
[0057] Referring to Figure 4The neck forming step 34 is provided with a punch 331 for performing a punching operation on the metal blank a. The punch 331 has a die 331a and a punch 331b corresponding to the die 331a and capable of generating a punching displacement. The punching operation first places the neck region a1 of the metal blank a in the die 331a, clamps the outer periphery of the neck region a1 by the die 331a, and punches the end of the neck region a1 not clamped by the die 331b, so that the end of the neck region a1 not clamped is extended by the punching of the punch 331b to form an extension, and a depth groove 44a formed around the extension, thereby forming a round shaft 44 as the golf iron head 4. In the present embodiment, the die 331a of the punch 331 includes two opposing die blocks capable of tightly closing to a closed die state to clamp the outer periphery of the neck region a1, so as to avoid the maximum outer diameter d1 of the neck region a1 from being improperly changed in the neck forming step 34.
[0058] Please refer to Figure 5 The cutting step 34 is provided with a cutting machine 341 for performing a cutting operation on the metal blank a. The cutting machine 341 includes a cutting tool 341a for cutting the surface of the striking face 43 formed in the bending step 32 to a planar state, and simultaneously cutting off the waste block c, thereby obtaining the golf iron head 4.
[0059] Please refer to Figures 1 to 5, processing, the metal blank a, by the forming machine 321 bending and compression molding operation, first placed in the forming die 321 a, the interface area a3 will be accommodated in the second die cavity b4, and the face area a2 will be accommodated in the first die cavity b2, so that the punch 321 b on the interface area a3 and the face area a2 stamping, the interface area a3 and the face area a2 between the connection will be bent to form a connection with the neck area a1 connecting surface 41, and a connecting surface 42 with the connecting surface 41 interface and extend to the face area a2, while the connecting surface 41 and the interface between the connecting surface 42 is a corner alpha and consistent with the appearance of the turning part of the golf club head 4 profile, thus forming as the golf club head 4 bending part 45, and the face area a2 also in the stamping action is expanded and filled the first die cavity b2, to form a connecting surface 42 connected with the interface and consistent with the appearance of the striking part of the golf club head 4 profile of the striking surface 43, and the excess waste produced by the stamping process will be accumulated in the excess material b5, so after the metal blank a bending and compression molding operation, its overall will not have uneven events such as too thin or too thick, and the excess waste will only accumulate in the excess material b5, so it can be more effective to save materials and reduce the failure rate, and after the striking surface 43 from the forming die 321 a, the accumulation of the excess waste on the striking surface 43 will form a waste block c, so after the completion of the golf club head 4 bending and compression molding operation, the next process can be carried out.
[0060] Continuing from the above, the stamping press 331 is used to stamp the neck region a1 of the metal blank a. After the die 331a clamps the outer periphery of the neck region a1, the punch 331b is driven to quickly move towards the forming die 331a to stamp the unclamped end of the neck region a1. This causes the unclamped end of the neck region a1 to extend into an extension body due to the stamping action, thereby forming a round shaft 44 with a deep slot 44a surrounded by the extension body, which serves as the golf iron head 4. Therefore, in this stamping operation, the neck region a1 is restricted and clamped by the die 331a in the closed state, which can prevent the neck region a1 from undergoing improper changes during stamping. This not only avoids the generation of excess waste, but also makes it possible for the material to reach the required fullness. In order to improve mechanical strength, after the stamping operation is completed, the round rod 44 can be separated from the mold 331a. Finally, the cutting tool 341a of the cutting machine 341 cuts the surface of the striking surface 43 formed by the bending and pressing operation, so that the surface of the striking surface 43 is flat after cutting. The waste block c accumulated on the striking surface 43 is also removed during cutting, so that the striking surface 43 forms a planar appearance that meets the specifications, thus obtaining the golf iron head 4. Therefore, by implementing the processing operation of the golf iron head manufacturing method 3 of the present invention, the processing steps can be simplified, the generation of improper waste can be eliminated, the material can be fully utilized and the mechanical strength can be improved, and the production cost and the defect rate can be significantly reduced.
[0061] See Figure 7 The second preferred embodiment of the present invention also includes a material preparation step 31, a bending step 32, a neck forming step 33, and a cutting step 34. In particular, this embodiment differs from the first embodiment in that the aforementioned steps can be implemented in a different order according to operational requirements. Specifically, in this embodiment, the neck forming step 33 is performed after the material preparation step 31, the bending step 32 is performed after the neck forming step 33, and the cutting step 34 is performed after the bending step 32. That is, the stamping machine 331 in the neck forming step 33 first forms a round rod 44 with a deep slot 44a in the neck region a1 of the metal blank a, and then... Figure 4 As shown, the forming machine 321 in the bending step 32 then performs a bending compression operation by stamping the connecting area a3 and the rod surface area a2, and a waste block c is also formed on the impact surface 43 formed during the stamping of the rod surface area a2, as shown. Figure 3 As shown, a cutting operation is then performed on the surface of the striking surface 43, and the waste block c accumulated on the striking surface 43 after stamping is also removed. Please refer to... Figure 5Therefore, the golf club head 4 is manufactured by the same process, which can simplify the manufacturing process, avoid the generation of waste material, and greatly reduce the production cost and the production failure rate.
[0062] In summary, the manufacturing method of the golf club head is designed by the consistent manufacturing process, including the material preparation step, the bending and pressing step, the neck forming step, and the cutting step. In the bending and pressing step, the metal blank of the connection area and the face area provided in the material preparation step is pressed to perform a bending and pressing operation, so that a waste block is formed on the striking surface formed by the pressing of the face area. Therefore, the appearance profile of the bending part and the striking part of the golf club head is formed. Then, in the neck forming step, the neck area is formed into a round rod with a deep slot. In the cutting step, the surface of the striking surface is cut and the waste block is simultaneously removed. Thus, a golf club head is obtained. Of course, the sequence of the above-mentioned steps can be adjusted according to the requirements of the manufacturing process. The manufacturing process is simplified, the generation of waste material is avoided, and the production cost and the production failure rate are greatly reduced.
[0063] The above description is only a preferred embodiment of the present application, and cannot limit the scope of the present application. Any simple equivalent changes and modifications made according to the scope of the present application and the content of the present application should still be within the scope of the present application.
Claims
1. A method of manufacturing a golf iron head, characterized by, A golf iron head is manufactured by a method comprising: a blanking step of providing a metal blank having a neck portion, a face portion, and a connecting portion connecting the neck portion and the face portion, wherein the face portion has a maximum outer diameter greater than that of the neck portion, and the connecting portion has a truncated conical shape; a bending step of performing a bending operation on the metal blank by using a forming machine having a forming die and a punch corresponding to the forming die, wherein the forming die has a first die cavity surrounded by a peripheral wall, a second die cavity surrounded by a wall surface, and a flash gate provided in the first die cavity, the first die cavity has an outer profile of a hitting portion of the golf iron head, the second die cavity has an outer profile of a transition portion of the golf iron head, the bending operation is performed by placing the metal blank in the forming die such that the connecting portion is received in the second die cavity and the face portion is received in the first die cavity, and then performing a pressing operation on the connecting portion and the face portion by using the punch to bend the connecting portion and the face portion at a connecting portion of the connecting portion and the face portion to form a connecting surface connecting the neck portion and a connecting surface connecting the connecting surface and extending to the face portion, the connecting surface and the connecting surface are formed at an angle corresponding to the outer profile of the transition portion of the golf iron head, the punch presses the face portion to expand the face portion to fill the first die cavity to form the hitting surface connecting the connecting surface, the hitting surface corresponds to the outer profile of the hitting portion of the golf iron head, and the punch presses the connecting portion to form a flash on the hitting surface; a neck forming step of performing a pressing operation on the metal blank by using a press machine having a die and a punch corresponding to the die and capable of performing a pressing displacement, wherein the pressing operation is performed by placing the neck portion of the metal blank in the die, clamping the outer periphery of the neck portion by using the die, and then performing a pressing operation on an unclamped end of the neck portion by using the punch to extend the unclamped end of the neck portion to form an extension and a depth groove formed by the extension, thereby forming the neck of the golf iron head; and a trimming step of performing a trimming operation on the metal blank by using a trimming machine having a trimming tool, wherein the trimming tool trims the surface of the hitting surface formed in the bending step to be flat and simultaneously trims the flash, thereby obtaining the golf iron head.
2. The method of manufacturing a golf club head according to claim 1, wherein, The bending and pressing step is implemented after the preparation step, the neck forming step is implemented after the bending and pressing step, and the cutting step is implemented after the neck forming step.
3. The method of manufacturing a golf club head according to claim 1, wherein, The bending and pressing step is implemented after the preparation step, the neck forming step is implemented after the bending and pressing step, and the cutting step is implemented after the bending and pressing step.
4. The method of manufacturing a golf club head according to any one of claims 1 to 3, wherein The die of the puncher includes two opposite die blocks, which can be tightly closed to a closed die state to clamp the outer periphery of the neck region, so as to avoid the maximum outer diameter of the neck region from being changed improperly in the neck forming step.
5. The method of manufacturing a golf club head according to any one of claims 1 to 3, wherein The side of the shaft surface region opposite the connecting region is arc-shaped.