Radial forging machine hammerhead assembly convenient to disassemble and assemble
By using the design of polygonal nuts and limit grooves in the hammer head locking device of the diameter forging machine, the problem of bolt locking in dust environments is solved, and the hammer head is easily disassembled and installed and locked.
Patent Information
- Application Number
- CN202420580923.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-21
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-03-21
AI Technical Summary
The existing hammer head locking device of the diameter forging machine can easily cause the bolt to lock and be difficult to loosen in a dusty environment, resulting in inconvenient replacement of the hammer head.
The design of a polygonal nut and a limiting groove is adopted. The locking bolt is connected to the locking nut after passing through the first clamp, hammer seat and second clamp. The nut is embedded in the limiting groove to limit the rotation of the bolt and avoid locking.
It realizes simple disassembly and assembles the hammer head, avoids bolt locking, and improves the convenience of hammer head replacement and locking firmness.
Smart Images
Figure CN222569161U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of radial forging machines, in particular to a radial forging machine hammer assembly which is convenient for assembly and disassembly. Background Art
[0002] The radial forging machine is specially used for processing solid or hollow long shaft parts. During forging, the hammers distributed in the circumference of the bar strike the workpiece quickly and synchronously.
[0003] In order to forge steels of different specifications, the radial forging machine needs to frequently replace hammers of different specifications, so the hammer head and the hammer head seat are designed to be split. The hammer head and the hammer seat are locked by a locking device. The existing locking device clamps the hammer head and the hammer seat through two clamps, and locks the two clamps through nuts and bolts, thereby locking the hammer head and the hammer seat.
[0004] Due to the large amount of dust at the production site, dust intrudes into the gap between the bolt and the clamping plate, which can easily cause the bolt to lock and become difficult to loosen. The locking device can only be opened by cutting off the nut of the bolt, and then the hammer head can be replaced. This not only damages the bolt, but also makes it extremely inconvenient to replace the hammer head. Utility Model Content
[0005] In order to improve the convenience of replacing the hammer head, the present application provides a radial forging machine hammer head assembly that is easy to disassemble and assemble.
[0006] The utility model provides a radial forging machine hammer head assembly that is easy to disassemble and assemble, and adopts the following technical solutions:
[0007] A radial forging machine hammer head assembly that is easy to disassemble and assemble, comprising a hammer body, a first clamping plate, a second clamping plate, a locking bolt and a locking nut; wherein the hammer body comprises a hammer head and a hammer seat; the hammer head is arranged on the hammer seat; the first clamping plate and the second clamping plate are respectively arranged on two opposite sides of the hammer body; one end of the locking bolt has a nut, and the nut is polygonal; the locking bolt passes through the first clamping plate, the hammer seat and the second clamping plate in sequence and is threadedly connected with the locking nut, so that the first clamping plate and the second clamping plate clamp the hammer body; a limiting groove is provided on the side of the first clamping plate away from the hammer seat; the shape of the limiting groove matches the shape of the nut, and is used to limit the rotation of the locking bolt around its own axis.
[0008] Optionally, the nut is in a rectangular shape, and the width of the limiting groove is equal to the width of the nut.
[0009] Optionally, the limiting groove passes through the upper side and the lower side of the first clamping plate in the length direction thereof.
[0010] Optionally, there are multiple locking bolts; multiple locking bolts pass through the hammer base in parallel and at uniform intervals; the number of locking nuts is the same as the number of locking bolts, and can be threadedly connected to the multiple locking bolts in a one-to-one correspondence; the number of limiting grooves is the same as the number of locking bolts, and can accommodate the nuts in a one-to-one correspondence.
[0011] Optionally, the tail portion of the locking bolt is divided into a connecting section and a smooth section; the smooth section is not threaded and is located between the connecting section and the nut; the connecting section is threaded.
[0012] Optionally, locking grooves are provided on the opposite sides of the first clamping plate and the second clamping plate; the edge of the side surface of the hammer head connected to the hammer seat extends toward the first clamping plate and the second clamping plate, forming a first protrusion on both sides of the hammer head; the edge of the side surface of the hammer seat connected to the hammer head extends toward the first clamping plate and the second clamping plate, forming a second protrusion on both sides of the hammer seat; the first protrusion and the second protrusion adjacent thereto are connected to each other, forming a protrusion on both sides of the hammer body; the protrusion can be embedded in the locking groove.
[0013] Optionally, the locking groove includes a bottom wall, an upper inner wall and a lower inner wall; the bottom wall is vertically arranged; the upper inner wall is located on the upper side of the bottom wall and is inclined upward; the lower inner wall is located on the lower side of the bottom wall and is inclined downward; the upper side surface of the first protrusion is a first inclined surface; the first inclined surface is inclined downward, and the inclination angle is consistent with the inclination angle of the upper inner wall; the lower side surface of the second protrusion is a second inclined surface, the second inclined surface is inclined upward, and the inclination angle is consistent with the inclination angle of the lower inner wall; when the protrusion is embedded in the locking groove, the first inclined surface abuts against the upper inner wall, and the second inclined surface abuts against the lower inner wall.
[0014] Optionally, a through hole for the locking bolt to pass through is formed on the hammer seat; a maintenance hole is formed on the side where the hammer seat and the hammer head are connected; and the maintenance hole is connected to the through hole.
[0015] As described above, the radial forging machine hammer assembly of the utility model, which is easy to disassemble and assemble, has at least the following beneficial effects:
[0016] 1. The hammer head assembly of the radial forging machine of the utility model is easy to disassemble and assemble, and the hammer head can be locked without rotating the locking bolt. Moreover, since the nut is embedded in the limit groove, the rotation of the locking bolt is limited, so the locking bolt is not easily locked, and the disassembly and assembly are relatively simple, which overcomes the defect of the existing locking device that the locking bolt can only be removed by cutting off the locking bolt head when the locking bolt is locked.
[0017] 2. The radial forging machine hammer head assembly of the utility model, which is easy to disassemble and assemble, also has a maintenance hole on the hammer seat, so that the staff can clean the debris in the through hole through the maintenance hole to avoid the locking bolt from being locked, which helps to improve the convenience of replacing the hammer head. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is an exploded view of the overall structure of the radial forging machine hammer assembly which is convenient for disassembly and assembly according to an embodiment of the utility model.
[0019] Figure 2 It is a schematic diagram of the overall structure of a radial forging machine hammer assembly that is convenient for assembly and disassembly according to an embodiment of the utility model.
[0020] Figure 3 It is a schematic diagram of an embodiment of the utility model for reflecting the assembly method of a locking bolt, a locking nut, a first clamping plate and a second clamping plate.
[0021] Figure 4 It is a cross-sectional view of the overall structure of a radial forging machine hammer assembly that is convenient for assembly and disassembly according to an embodiment of the utility model.
[0022] Figure 5 yes Figure 4 Enlarged view of part A in the figure.
[0023] Figure 6 It is a schematic diagram of the embodiment of the utility model for reflecting the structure of the hammer head and the hammer seat.
[0024] Figure 7 It is a schematic diagram of an embodiment of the utility model for illustrating a maintenance hole.
[0025] Figure numerals: 1. hammer head; 2. hammer seat; 21. through hole; 3. first clamp; 4. second clamp; 5. locking bolt; 51. smooth section; 52. connecting section; 53. nut; 6. locking nut; 7. limiting groove; 8. locking groove; 81. bottom wall; 82. upper inner wall; 83. lower inner wall; 9. protrusion; 91. first protrusion; 911. first inclined surface; 92. second protrusion; 921. second inclined surface; 10. maintenance hole; 11. gap. DETAILED DESCRIPTION
[0026] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and the features in the embodiments can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present invention are intended to describe specific implementation schemes, rather than to limit the scope of protection of the present invention. The test methods for which specific conditions are not specified in the following examples are usually carried out under conventional conditions or under the conditions recommended by the manufacturers.
[0027] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.
[0028] Please refer to Figure 1-3 The utility model discloses a radial forging machine hammer head 1 assembly which is easy to assemble and disassemble, comprising a hammer body, a first clamping plate 3, a second clamping plate 4, a locking bolt 5 and a locking nut 6. The hammer body comprises a hammer head 1 and a hammer seat 2. The hammer head 1 is arranged on the hammer seat 2. The first clamping plate 3 and the second clamping plate 4 are respectively arranged on two opposite sides of the hammer body. One end of the locking bolt 5 has a nut 53, and the nut 53 is polygonal. The locking bolt 5 passes through the first clamping plate 3, the hammer seat 2 and the second clamping plate 4 in sequence and is threadedly connected with the locking nut 6, so that the first clamping plate 3 and the second clamping plate 4 clamp the hammer body. A limiting groove 7 is provided on the side of the first clamping plate 3 away from the hammer seat 2. The shape of the limiting groove 7 matches the shape of the nut 53, and is used to limit the rotation of the locking bolt 5 around its own axis.
[0029] In this embodiment, please refer to Figure 3 The nut 53 is in a rectangular parallelepiped shape. Correspondingly, the shape of the limiting groove 7 matches the shape of the nut 53. After the nut 53 is inserted into the limiting groove 7, it can only be inserted and removed along its own axis, but cannot be rotated around its own axis.
[0030] More specifically, the width of the limiting groove 7 is the same as that of the nut 53, and the limiting groove 7 passes through the upper and lower sides of the first clamping plate 3 in its length direction, so that the limiting groove 7 has the function of limiting the rotation of the nut 53 and is also easy to process.
[0031] In some other embodiments of the present invention, the shape of the nut 53 can be a prism shape such as a triangular prism, a pentagonal prism, or other various special shapes, as long as the locking bolt 5 can be inserted and removed only along its own axis after being inserted into the limiting groove 7, but cannot be rotated around its own axis. In actual production, the shape of the nut 53 can be appropriately selected according to the difficulty of its manufacture and the technical requirements of the hammer head 1 assembly.
[0032] Since only the portion of the locking bolt 5 that passes through the second clamping plate 4 needs to be threadedly connected to the locking nut 6 , the entire rear portion of the locking bolt 5 does not need to be threaded.
[0033] For details, please refer to Figure 3 , the tail portion of the locking bolt 5 is divided into a connecting section 52 and a smooth section 51. Among them, the smooth section 51 is located between the connecting section 52 and the nut 53, and no thread is provided on it. The connecting section 52 is provided with a thread for threaded connection with the locking nut 6. The length of the connecting section 52 is sufficient to enable the locking nut 6 to lock the first clamping plate 3 and the clamping plate, and then lock the hammer head 1 and the hammer seat 2. In addition, when the locking nut 6 is locked, the connecting section 52 still has a margin, so that the first clamping plate 3, the second clamping plate 4, the hammer head 1 and the hammer seat 2 are worn and loosened, and the locking nut 6 can continue to be tightened to restore the lock.
[0034] In the case of a large hammer body, a pair of locking bolts 5 and locking nuts 6 cannot meet the locking requirements. Therefore, the number of locking bolts 5 can be multiple, and multiple locking bolts 5 pass through the hammer base 2 in parallel and at uniform intervals. The number of locking nuts 6 is the same as the number of locking bolts 5, and can be threadedly connected with the multiple locking bolts 5 in a one-to-one correspondence. The number of limiting grooves 7 is the same as the number of locking bolts 5, and can accommodate nuts 53 in a one-to-one correspondence.
[0035] In this embodiment, the case where the number of the locking bolts 5 is two is taken as an example for explanation.
[0036] For details, please refer to Figure 1-3 The number of locking bolts 5 is two, and the two locking bolts 5 are parallel to each other and at the same height. The two locking bolts 5 are symmetrically arranged in the length direction of the first clamping plate 3. The number of corresponding limiting grooves 7 is also two, which are used to respectively accommodate two nuts 53. Each locking bolt 5 is correspondingly threadedly connected with a locking nut 6.
[0037] By locking the hammer head 1 with two or more locking bolts 5 and locking nuts 6, the firmness of the hammer head 1 during locking can be improved.
[0038] In order to further improve the firmness of the hammer head 1 when locked, locking grooves 8 are provided on the opposite sides of the first clamping plate 3 and the second clamping plate 4. The edge of the side where the hammer head 1 is connected to the hammer seat 2 extends in the direction of the first clamping plate 3 and the second clamping plate 4, and a first protrusion 91 is formed on both sides of the hammer head 1. The edge of the side where the hammer seat 2 is connected to the hammer head 1 extends in the direction of the first clamping plate 3 and the second clamping plate 4, and a second protrusion 92 is formed on both sides of the hammer seat 2. The first protrusion 91 and the second protrusion 92 adjacent thereto are connected to each other, and a protrusion 9 is formed on both sides of the hammer body. The protrusion 9 can be embedded in the locking groove 8.
[0039] In actual use, the hammer head 1 is now docked with the hammer seat 2, and then the first clamping plate 3 and the second clamping plate 4 are installed, so that the two protrusions 9 are respectively embedded in the locking grooves 8 of the first clamping plate 3 and the second clamping plate 4, and then the locking bolt 5 is inserted, and finally the locking nut 6 is installed on the locking bolt 5 and tightened, so as to achieve the locking of the hammer head 1. Since the protrusion 9 is composed of the first protrusion 91 of the hammer head 1 and the second protrusion 92 of the hammer seat 2, the engagement between the locking groove 8 and the protrusion 9 can further improve the firmness of the hammer head 1 when locked.
[0040] Specifically, during repeated forging, friction and collision will occur between the hammer head 1 and the hammer base 2. As the use time of the hammer head 1 increases, a gap 11 will appear between the hammer head 1 and the hammer base 2, the first clamping plate 3 or the second clamping plate 4, causing the hammer head 1 to loosen.
[0041] In order to re-tighten the hammer head 1 after it is loosened, the radial forging machine hammer head assembly with easy disassembly and assembly of the utility model further improves the first clamping plate 3, the second clamping plate 4, the hammer head 1 and the hammer seat 2:
[0042] Please refer to Figure 4 , 5 The locking groove 8 includes a bottom wall 81, an upper inner wall 82 and a lower inner wall 83. The bottom wall 81 is vertically arranged. The upper inner wall 82 is located on the upper side of the bottom wall 81 and is inclined upward. The lower inner wall 83 is located on the lower side of the bottom wall 81 and is inclined downward. The upper side surface of the first protrusion 91 is a first inclined surface 911. The first inclined surface 911 is inclined downward, and the inclination angle is consistent with the inclination angle of the upper inner wall 82. The lower side surface of the second protrusion 92 is a second inclined surface 921, and the second inclined surface 921 is inclined upward, and the inclination angle is consistent with the inclination angle of the lower inner wall 83. When the protrusion 9 is embedded in the locking groove 8, the first inclined surface 911 abuts against the upper inner wall 82, and the second inclined surface 921 abuts against the lower inner wall 83.
[0043] When the hammer head 1 becomes loose, the locking nut 6 is continuously tightened, the first clamping plate 3 and the second clamping plate 4 move closer to each other, the upper inner wall 82 of the locking groove 8 squeezes the first inclined surface 911 of the hammer head 1, and the lower inner wall 83 squeezes the second inclined surface 921 of the hammer seat 2, thereby reducing the gap 11 between the first clamping plate 3 and the hammer body, the gap 11 between the second clamping plate 4 and the hammer body, and the gap 11 between the hammer head 1 and the hammer seat 2, and then the hammer head 1 and the hammer seat 2 are locked again, and the hammer head 1 can continue to be used without replacement, which greatly improves the service life of the hammer head 1 and the convenience during use.
[0044] In addition, due to the large volume of the hammer body, the length of the locking bolt 5 used is long, and thus the length of the through hole 21 for inserting the locking bolt 5 is also long. During the use of the hammer head 1, once debris such as iron filings falls into the through hole 21, it is difficult to clean it, and over time, it is easy to make it difficult to pull the bolt out of the through hole 21.
[0045] Therefore, please refer to Figure 6 , 7 In this embodiment, a maintenance hole 10 is provided on one side of the hammer seat 2 and the hammer head 1. The maintenance hole 10 is connected with the through hole 21.
[0046] Specifically, the maintenance hole 10 is in the shape of a racetrack, and its length is one-third to two-thirds of the length of the through hole 21, for example, it can be one-third, one-half or two-thirds. In actual use, the length of the maintenance hole 10 can be appropriately selected according to the strength requirements of the hammer seat 2 and the maintenance requirements.
[0047] Furthermore, when there are multiple locking bolts 5 , the number of the maintenance holes 10 is the same as the number of the locking bolts 5 , and each maintenance hole 10 is connected to one through hole 21 .
[0048] In summary, when locking the hammer head 1 of the radial forging machine hammer head assembly which is easy to disassemble and assemble of the utility model, the hammer head 1 is firstly docked on the hammer seat 2 to form a hammer body, and then the first clamping plate 3 and the second clamping plate 4 are respectively placed in corresponding positions, and then the locking bolt 5 is passed through the first clamping plate 3, the hammer seat 2 and the second clamping plate 4 in turn, and the nut 53 is embedded in the limiting groove 7, and finally the locking nut 6 is threadedly connected with the locking bolt 5 and tightened, so that the hammer head 1 can be locked.
[0049] When replacing the hammer head 1, you only need to loosen the locking nut 6 and then pull out the locking bolt 5 to remove the hammer head 1 from between the first clamping plate 3 and the second clamping plate 4. Finally, select a suitable hammer head 1 and repeat the above steps of locking the hammer head 1 to complete the replacement.
[0050] Therefore, the hammer head assembly of the radial forging machine with convenient assembly and disassembly of the utility model can lock the hammer head 1 without rotating the locking bolt 5. Moreover, since the nut 53 is embedded in the limiting groove 7, the rotation of the locking bolt 5 is restricted, so the locking bolt 5 is not easily locked, and the assembly and disassembly are relatively simple, which overcomes the defect of the existing locking device that the locking bolt 5 can only be removed by cutting off the nut 53 when the locking bolt 5 is locked.
[0051] The radial forging machine hammer head assembly of the utility model which is easy to disassemble and assemble also has a maintenance hole 10 on the hammer seat 2, so that the staff can clean the debris in the through hole 21 through the maintenance hole 10, avoiding the locking bolt 5 from being locked, which helps to improve the convenience of replacing the hammer head 1.
[0052] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.
Claims
1. A radial forging machine hammer assembly that is easy to assemble and disassemble, characterized in that: It comprises a hammer body, a first clamping plate (3), a second clamping plate (4), a locking bolt (5) and a locking nut (6); wherein: The hammer body comprises a hammer head (1) and a hammer seat (2); the hammer head (1) is arranged on the hammer seat (2); The first clamping plate (3) and the second clamping plate (4) are respectively arranged on two opposite sides of the hammer body; One end of the locking bolt (5) is provided with a nut (53), and the nut (53) is polygonal; the locking bolt (5) passes through the first clamping plate (3), the hammer seat (2) and the second clamping plate (4) in sequence and is threadedly connected with the locking nut (6), so that the first clamping plate (3) and the second clamping plate (4) clamp the hammer body; A limiting groove (7) is provided on a side of the first clamping plate (3) facing away from the hammer seat (2); the shape of the limiting groove (7) matches the shape of the nut (53) and is used to limit the rotation of the locking bolt (5) around its own axis.
2. The easily disassembled radial forging machine hammer assembly according to claim 1 is characterized in that: The nut (53) is in the shape of a rectangular parallelepiped; The width of the limiting groove (7) is equal to the width of the nut (53).
3. The easily disassembled radial forging machine hammer assembly according to claim 2 is characterized in that: The limiting groove (7) passes through the upper side and the lower side of the first clamping plate (3) in its length direction.
4. The easily disassembled radial forging machine hammer assembly according to claim 1 is characterized in that: The number of the locking bolts (5) is multiple; the multiple locking bolts (5) pass through the hammer seat (2) in parallel and at uniform intervals; The number of the locking nuts (6) is the same as the number of the locking bolts (5), and can be threadedly connected with the plurality of locking bolts (5) in a one-to-one correspondence; The number of the limiting grooves (7) is the same as the number of the locking bolts (5), and can accommodate the nuts (53) in a one-to-one correspondence.
5. The easily disassembled radial forging machine hammer assembly according to claim 1 or 4, characterized in that: The tail portion of the locking bolt (5) is divided into a connecting section (52) and a smooth section (51); The smooth section (51) is not provided with threads and is located between the connecting section (52) and the nut (53); The connecting section (52) is provided with threads.
6. The easily disassembled radial forging machine hammer assembly according to claim 1, characterized in that: The first clamping plate (3) and the second clamping plate (4) are both provided with locking grooves (8) on opposite sides thereof; The edge of the side surface of the hammer head (1) and the hammer seat (2) connected to each other extends in the direction of the first clamping plate (3) and the second clamping plate (4), and a first protrusion (91) is formed on each side of the hammer head (1); The edge of the side surface of the hammer seat (2) that is in contact with the hammer head (1) extends in the direction of the first clamping plate (3) and the second clamping plate (4), and a second protrusion (92) is formed on each side of the hammer seat (2); The first protrusion (91) and the second protrusion (92) adjacent thereto are connected to each other, forming a protrusion (9) on each side of the hammer body; The protrusion (9) can be embedded in the locking groove (8).
7. The easily disassembled radial forging machine hammer assembly according to claim 6, characterized in that: The locking groove (8) comprises a bottom wall (81), an upper inner wall (82) and a lower inner wall (83); The bottom wall (81) is arranged vertically; the upper inner wall (82) is located on the upper side of the bottom wall (81) and is inclined upward; the lower inner wall (83) is located on the lower side of the bottom wall (81) and is inclined downward; The upper side surface of the first protrusion (91) is a first inclined surface (911); the first inclined surface (911) is inclined downward, and the inclination angle is consistent with the inclination angle of the upper inner wall (82); The lower side surface of the second protrusion (92) is a second inclined surface (921), and the second inclined surface (921) is inclined upward, and the inclination angle is consistent with the inclination angle of the lower inner wall (83); When the protruding portion (9) is embedded in the locking groove (8), the first inclined surface (911) abuts against the upper inner wall (82), and the second inclined surface (921) abuts against the lower inner wall (83).
8. The easily disassembled radial forging machine hammer assembly according to claim 1 or 4, characterized in that: The hammer seat (2) is provided with a through hole (21) for the locking bolt (5) to pass through; A maintenance hole (10) is provided on one side of the hammer seat (2) that is butt-jointed with the hammer head (1); the maintenance hole (10) is connected to the through hole (21).