A machining device and method for machining a stepped hexagonal head bolt

Abstract

The application discloses a kind of processing equipment of trimming outer hexagonal bolt with flower step, including movable die head and fixed die head;The punch assembly is equipped on the movable die head;The opening assembly is equipped on the movable die head;The first plastic component is further equipped on the movable die head;The second plastic component is further equipped on the movable die head;The third plastic component is further equipped on the movable die head;The clamping seat component that the wire is positioned is equipped on the movable die head, when each described clamping seat component has wire, once using the movable die head moves to fixed die head direction, the processing of each wire can be realized simultaneously.Simultaneously through cold stamping forming in lifting processing speed, through cold extrusion process can also be complete to keep metal wire from being destroyed, the original tensile strength of metal is kept;The application further discloses a kind of processing method of trimming outer hexagonal bolt with flower step, using the method can effectively improve the processing efficiency of bolt.

Description

Technical Field

[0001] This invention relates to the field of bolt processing technology, specifically to a processing equipment and method for a hexagonal stepped bolt with cut edges and floral pattern. Background Technology

[0002] The production of such fasteners in the market usually involves cutting, and the diameter of the raw material is not less than the diameter of the largest part of the fastener. This method is wasteful of material and the cutting speed is slow. Summary of the Invention

[0003] The purpose of this invention is to provide a processing equipment and method for cutting edge external hexagonal stepped bolts with floral patterns, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a processing device for a hexagonal stepped bolt with a flower pattern, comprising a moving die head and a fixed die head; the moving die head is provided with a punch assembly, which punches a positioning hole at one end of the wire; the moving die head is provided with an opening assembly, which punches a hole in the wire along the positioning hole; the moving die head is also provided with a first molding assembly, which forms a step on the outer circumference of the wire after the wire passes through the first molding assembly; the moving die head is also provided with a second molding assembly, which punches a groove above the step; the moving die head is also provided with a third molding assembly, which punches the wire to form a polygonal prism with a polygonal cross-section above the step of the wire; the moving die head has a clamping assembly for positioning the wire, and when each clamping assembly has wire, the moving die head can move towards the fixed die head once to simultaneously process each wire.

[0005] As a preferred technical solution of the present invention: the clamping assembly corresponding to the punch assembly is further provided with a bundle-shaped hole.

[0006] As a preferred technical solution of the present invention: the clamping assembly opposite to the opening assembly is further provided with a stretching hole.

[0007] As a preferred technical solution of the present invention: the clamping assembly corresponding to the first molding assembly, the second molding assembly, and the third molding assembly is provided with fixing holes.

[0008] As a preferred embodiment of the present invention: a push rod is slidably mounted on one side of each clamping assembly, and the push rod is used to cause the wire to separate from the corresponding clamping assembly.

[0009] As a preferred technical solution of the present invention: the first molding component includes a first housing, one end of the first housing is provided with a first molding die head, and the first housing is also provided with a first sliding rod, and the first sliding rod is caused to slide within the first housing by a first pushing rod.

[0010] As a preferred embodiment of the present invention: the second molding component includes a second housing, and a mold head assembly is installed inside the second housing, and the mold head assembly includes a connecting seat, a first support seat and a second support seat; wherein, a second molding mold head is provided at the end of the connecting seat facing the wire; a second pushing rod is provided inside the first support seat, and a second sliding rod is provided inside the second support seat. When an external force is applied to the second sliding rod, the second sliding rod pushes the second pushing rod to push out the wire located inside the second molding mold head.

[0011] As a preferred technical solution of the present invention: the punch assembly includes a third housing, in which a first punch is disposed and connected to the third housing by a first fixing member to fix the first punch on the third housing; the opening assembly includes a fourth housing, in which a second punch is installed and fixed in the fourth housing by a second fixing member.

[0012] As a preferred embodiment of the present invention: the third molding component includes a fifth housing and a third molding head, and the third molding head is fixed on the fifth housing by a mounting bracket provided on the fifth housing.

[0013] To achieve the above objectives, the present invention also provides the following technical solution: a processing method for a hexagonal stepped bolt with cut edges, comprising the following steps: S1: cutting the wire and placing one end of the cut wire into the bundle-shaped hole, moving the moving die head toward the fixed die head to promote the wire to form in the bundle-shaped hole, and punching a positioning hole at one end of the wire using a punch assembly;

[0014] S2: Take out the wire from the bundle hole and put it into the stretching hole. Use the moving die head to move towards the fixed die head so that the wire is reshaped in the stretching hole. During the shaping process, the opening component opens a round hole on the wire along the positioning hole.

[0015] S3: Take the wire out of the stretching hole and put it into the clamping assembly corresponding to the first molding assembly. When the moving die head moves towards the fixed die head, it causes a step to be formed on the outer circumference of the wire.

[0016] S4: Place the stepped wire into the clamping assembly corresponding to the second molding assembly, and move the moving die head toward the fixed die head so that the second molding assembly extrudes the wire while punching out grooves on the steps of the wire.

[0017] S5: Place the wire punched out of the slot into the clamping assembly corresponding to the third molding assembly, and use the moving die head to move towards the fixed die head so that the third molding assembly can process a polygonal prism on the step of the wire.

[0018] The beneficial effects of the present invention by adopting the above technical solution are: 1. By directly cold stamping, the processing speed is improved, and the metal wire can be completely preserved without being damaged by the cold extrusion process, thus preserving the original tensile strength of the metal.

[0019] 2. The wire is gradually shaped by cold heading process. Therefore, once the length of the wire meets the requirements, it can be processed without circumferential processing, i.e., there is no need to cut the outer diameter of the wire, thus reducing wire consumption. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0021] Figure 2 This is a schematic diagram showing the state of the punch assembly punching positioning holes in the wire.

[0022] Figure 3 This is a schematic diagram showing the state of the perforated assembly when it makes a hole in the wire.

[0023] Figure 4 This is a schematic diagram showing the state of the wire during the first shaping process of the first shaping component.

[0024] Figure 5 This is a schematic diagram showing the state of the wire during the second shaping process of the second shaping component.

[0025] Figure 6 This is a schematic diagram showing the state of the wire during the final shaping process of the third shaping component.

[0026] Figure 7 This is a cross-sectional structural diagram of the punch assembly;

[0027] Figure 8 This is a cross-sectional structural diagram of the perforated assembly;

[0028] Figure 9 This is a schematic cross-sectional view of the first molding component;

[0029] Figure 10 This is an exploded structural diagram of the second molding component;

[0030] Figure 11 This is a cross-sectional structural diagram of the mold head assembly;

[0031] Figure 12 This is an exploded structural diagram of the third molding component;

[0032] Figure 13 This is a schematic diagram of the wire structure from raw material to final forming.

[0033] In the diagram: 1. Moving die head; 10. Punch assembly; 100. Third housing; 101. First fixing member; 102. First punch; 11. Opening assembly; 110. Fourth housing; 111. Second punch; 112. Second fixing member; 12. First molding assembly; 120. First housing; 121. First forming die head; 122. First sliding rod; 123. First push rod; 13. Second molding assembly; 130. Second housing; 131. Die head assembly; 1310. First support base ; 1311, Second support seat; 1312, Second push rod; 1313, Second sliding rod; 1314, Connecting seat; 1315, Second forming die head; 132, Clamping component; 14, Third molding assembly; 140, Fifth housing; 141, Third forming die head; 142, Mounting clamp; 2, Fixed die head; 20, Clamp assembly; 21, Bundle-shaped hole; 22, Stretching hole; 23, Push rod; 24, Fixing hole; 3, Upper cylinder; 4, Lower cylinder; 5, Cylindrical part; 6, Frustum part. Detailed Implementation

[0034] The embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "upper surface," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0035] Please see Figure 1-12This invention provides an embodiment of a processing device for a hexagonal bolt with a stepped edge and a decorative pattern, comprising a moving die head 1 and a fixed die head 2; the moving die head 1 is provided with a punch assembly 10, which punches a positioning hole at one end of a wire; the moving die head 1 is provided with a hole-opening assembly 11, which opens a hole in the wire along the positioning hole; the moving die head 1 is also provided with a first molding assembly 12, which forms a step on the outer circumference of the wire after it passes through the first molding assembly 12; the moving die head 1... A second molding component 13 is also provided, and a groove is punched out above the step through the second molding component 13; a third molding component 14 is also provided on the moving die head 1, and the wire is punched through the third molding component 14 to form a polygonal prism with a polygonal cross-section above the wire step; the fixed die head 2 has a clamping component 20 for positioning the wire. When each clamping component 20 has wire, each wire can be processed simultaneously by moving the moving die head 1 to the fixed die head 2 once.

[0036] In summary, direct cold stamping not only increases processing speed but also preserves the metal wire intact and retains its original tensile strength through the cold extrusion process. At the same time, the wire is gradually shaped by cold heading, so once the wire length meets the requirements, no circumferential processing is needed, i.e., there is no need to cut the outer diameter of the wire, thus reducing wire waste.

[0037] like Figure 2 As shown, the clamping assembly 20 corresponding to the punch assembly 10 is also provided with a bundle-shaped hole 21. Therefore, when the punch assembly 10 pushes the wire into the bundle-shaped hole 21, the bundle-shaped hole 21 can be used to constrain the wire so that the shape of the wire can be the same as the shape of the bundle-shaped hole 21. In addition, while pushing the wire into the bundle-shaped hole 21, the punch assembly 10 also punches a positioning hole on the outer end face of the wire.

[0038] like Figure 3 As shown, the clamping assembly 20, which is opposite to the opening assembly 11, is also provided with a stretching hole 22. When the wire enters the stretching hole 22, the outer diameter and shape of the wire are reshaped by the stretching hole 22 so that the shape of the wire is stable. At the same time, after the opening assembly 11 promotes the wire to enter the stretching hole 22, it also makes an opening at one end of the wire along the positioning hole.

[0039] In summary, by utilizing the combined action of the punch assembly 10 and its corresponding clamping assembly 20, and the opening assembly 11 and its corresponding clamping assembly 20, the outer diameter of the wire is shaped twice. Thus, the outer diameter of the wire is gradually controlled through two shaping processes. This reduces the difficulty of wire forming and prevents the wire from being crushed or bent due to excessive cold forging force during the forming process.

[0040] like Figure 4 As shown, the clamping assembly 20, which is opposite to the first molding assembly 12, the second molding assembly 13, and the third molding assembly 14, is provided with fixing holes 24. At this time, the clamping assembly 20 mainly serves to position the wire, preventing the wire from falling off the fixed mold head 2 when it is squeezed by the moving mold head 1, thereby ensuring that the wire processing process can proceed smoothly.

[0041] Combination Figures 1 to 6 Each clamping assembly 20 has a push rod 23 slidably mounted on one side, and the push rod 23 is used to separate the wire from the corresponding clamping assembly 20. Thus, when the moving die head 1 separates from the fixed die head 2, an external force is applied to the push rod 23 to make the push rod 23 slide within the clamping assembly 20, thereby enabling the wire to be smoothly separated from the clamping assembly 20, so that an external robot can move the wire from the previous process to the next process.

[0042] like Figure 9 As shown, the first molding component 12 includes a first housing 120, one end of which is provided with a first molding die 121. A first sliding rod 122 is also provided inside the first housing 120, and a first pushing rod 123 causes the first sliding rod 122 to slide within the first housing 120. When the first molding component 12 pushes the wire towards the fixed die 2, the wire is compressed. At this time, the first molding die 121 guides the compressed wire to deform in the same shape as the first molding die 121. Since the wire is difficult to separate from the first molding die 121 after being compressed, a first pushing rod 123 is provided. External force pushes the first pushing rod 123 to push the wire out of the first molding die 121.

[0043] like Figure 10 and Figure 11 As shown, the second molding assembly 13 includes a second housing 130, and a die head assembly 131 is installed within the second housing 130. The die head assembly 131 includes a connecting seat 1314, a first support seat 1310, and a second support seat 1311. The connecting seat 1314 has a second forming die head 1315 at one end facing the wire. The first support seat 1310 has a second push rod 1312, and the second support seat 1311 has a second sliding rod 1313. When an external force is applied to the second sliding rod 1313, the second sliding rod 1313 pushes the second push rod 1312 to push the wire out of the second forming die head 1315. Furthermore, a clamping member 132 is used to connect to the second housing 130 to fix the die head assembly 131 within the second housing 130.

[0044] like Figure 7 As shown, the punch assembly 10 includes a third housing 100, in which a first punch 102 is provided and connected to the third housing 100 by a first fixing member 101, so as to fix the first punch 102 on the third housing 100.

[0045] like Figure 8 As shown, the opening assembly 11 includes a fourth housing 110, in which a second punch 111 is installed, and the second punch 111 is fixed in the fourth housing 110 by a second fixing member 112.

[0046] like Figure 12 As shown, the third molding component 14 includes a fifth housing 140 and a third molding die 141, and the third molding die 141 is fixed on the fifth housing 140 by a mounting bracket 142 provided on the fifth housing 140.

[0047] In summary, this method allows the wire to be gradually formed while avoiding the problem of the wire being difficult to separate after forming, thus preventing it from entering the next process. Based on this, the above method ensures that the wire production process, from raw material to final forming, can proceed smoothly, effectively guaranteeing the processing efficiency of the bolts.

[0048] like Figures 1 to 13 The present invention also provides a processing method for a hexagonal stepped bolt with cut edges, comprising the following steps: S1: cutting the wire and placing one end of the cut wire into the bundle-shaped hole 21, moving the moving die head 1 towards the fixed die head 2 to promote the wire to form in the bundle-shaped hole 21, and punching a positioning hole at one end of the wire using the punch assembly 10;

[0049] S2: Take out the wire from the bundle hole 21 and put it into the stretching hole 22. Move the moving die head 1 towards the fixed die head 2 so that the wire is reshaped in the stretching hole 22. During the shaping process, the opening assembly 11 opens a round hole on the wire along the positioning hole.

[0050] Steps S1 and S2 mainly involve reducing the outer diameter of one end of the wire to form two cylindrical structures, one larger at the top and one smaller at the bottom, namely the upper cylinder 3 and the lower cylinder 4. During the reduction process, positioning holes are machined on the end face of the wire, and circular holes are opened along the positioning holes to facilitate the subsequent process of opening threads on the inner wall of the circular holes.

[0051] S3: Take out the wire from the stretching hole 22 and put it into the clamping assembly 20 corresponding to the first molding assembly 12. When the moving die head 1 moves towards the fixed die head 2, it causes a step to be formed on the outer circumference of the wire. In this step, the outer diameter of the cylinder below the wire is reduced again, and the first molding die head 121 is used to cause the upper cylinder 3 to present a frustum 6 and a cylinder 5.

[0052] S4: Place the stepped wire into the clamping assembly 20 corresponding to the second molding assembly 13, and move the moving die head 1 towards the fixed die head 2 so that the second molding assembly 13 extrudes the wire while punching out grooves on the steps of the wire.

[0053] S5: The wire punched out of the slot is placed into the clamping assembly 20 corresponding to the third molding assembly 14, and the moving die head 1 is moved towards the fixed die head 2 so that the third molding assembly 14 can process a polygonal prism on the step of the wire.

[0054] Therefore, cold heading at room temperature can improve the mechanical properties of wire. Compared with the original cutting process, it has higher productivity, better product quality, and significantly reduces material consumption, lowers production costs, and improves working conditions. The diameter of the wire can be relatively small, which is beneficial for material saving.

[0055] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and these variations still fall within the protection scope of the present invention.

Claims

1. A processing equipment for a hexagonal bolt with a stepped edge and a flower pattern, characterized in that: It includes a moving mold head (1) and a fixed mold head (2); The moving die head (1) is provided with a punch assembly (10), and a positioning hole is punched out at one end of the wire through the punch assembly (10); The moving die head (1) is provided with an opening assembly (11), and the wire is opened through the opening assembly (11) along the positioning hole; The moving mold head (1) is also provided with a first molding component (12), and a step is formed on the outer circumference of the wire after the wire passes through the first molding component (12); The moving mold head (1) is also provided with a second molding component (13), and a groove is punched out above the step through the second molding component (13); The moving die head (1) is also provided with a third molding component (14), and the wire is punched through the third molding component (14) to form a polygonal prism with a polygonal cross-section above the wire step; The fixed die head (2) has a clamping assembly (20) for positioning the wire. When each clamping assembly (20) has a wire, the moving die head (1) can move once towards the fixed die head (2) to process each wire simultaneously.

2. The processing equipment for a chamfered external hexagonal stepped bolt according to claim 1, characterized in that: The clamping assembly (20) corresponding to the punch assembly (10) is also provided with a bundle-shaped hole (21).

3. The processing equipment for a chamfered external hexagonal stepped bolt according to claim 2, characterized in that: The clamping assembly (20) opposite to the opening assembly (11) is also provided with a stretching hole (22).

4. The processing equipment for a chamfered external hexagonal stepped bolt according to claim 3, characterized in that: The clamping assembly (20) corresponding to the first molding assembly (12), the second molding assembly (13), and the third molding assembly (14) is provided with fixing holes (24).

5. The processing equipment for a chamfered external hexagonal stepped bolt according to claim 4, characterized in that: Each of the clamping assemblies (20) has a push rod (23) slidably mounted on one side, and the push rod (23) is used to cause the wire to separate from the corresponding clamping assembly (20).

6. The processing equipment for a chamfered external hexagonal stepped bolt according to any one of claims 1-5, characterized in that: The first molding component (12) includes a first housing (120), one end of which is provided with a first molding die (121), and a first sliding rod (122) is also provided inside the first housing (120), and the first sliding rod (122) is slidable inside the first housing (120) by a first pushing rod (123).

7. The processing equipment for a chamfered external hexagonal stepped bolt according to claim 6, characterized in that: The second molding component (13) includes a second housing (130) and a die head component (131) is installed in the second housing (130). The die head component (131) includes a connecting seat (1314), a first support seat (1310) and a second support seat (1311). The connecting seat (1314) has a second molding die head (1315) at one end facing the wire. The first support seat (1310) has a second push rod (1312) and the second support seat (1311) has a second sliding rod (1313). When an external force is applied to the second sliding rod (1313), the second sliding rod (1313) pushes the second push rod (1312) to push the wire located in the second molding die head (1315) out.

8. The processing equipment for a chamfered external hexagonal stepped bolt according to claim 7, characterized in that: The punch assembly (10) includes a third housing (100), in which a first punch (102) is provided and connected to the third housing (100) by a first fixing member (101) to fix the first punch (102) on the third housing (100); the opening assembly (11) includes a fourth housing (110), in which a second punch (111) is installed and fixed in the fourth housing (110) by a second fixing member (112).

9. The processing equipment for a chamfered external hexagonal stepped bolt according to claim 8, characterized in that: The third molding component (14) includes a fifth housing (140) and a third molding head (141), and the third molding head (141) is fixed on the fifth housing (140) by a mounting bracket (142) provided on the fifth housing (140).

10. A method for processing a hexagonal bolt with a stepped edge and a beveled design, characterized in that: The steps include: S1: Cut the wire and put one end of the cut wire into the bundle hole (21), move the moving die head (1) towards the fixed die head (2) to make the wire form in the bundle hole (21), and punch a positioning hole at one end of the wire using the punch assembly (10); S2: Take out the wire from the bundle hole (21) and put it into the stretching hole (22). Use the moving die head (1) to move towards the fixed die head (2) so that the wire can be reshaped in the stretching hole (22). During the shaping process, the opening assembly (11) opens a round hole on the wire along the positioning hole. S3: Take out the wire from the stretching hole (22) and put it into the clamping assembly (20) corresponding to the first molding assembly (12). When the moving die head (1) moves towards the fixed die head (2), it causes a step to be formed on the outer circumference of the wire. S4: Place the stepped wire into the clamping assembly (20) corresponding to the second molding assembly (13), and move the moving die head (1) toward the fixed die head (2) so that the second molding assembly (13) extrudes the wire while punching out grooves on the steps of the wire. S5: The wire punched out of the slot is placed into the clamping assembly (20) corresponding to the third molding assembly (14), and the moving die head (1) is moved towards the fixed die head (2) so that the third molding assembly (14) can process a polygonal prism on the step of the wire.

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