Large forging hammer anti-high-falling hook head positioning key structure and fixing method

Abstract

The invention relates to the technical field of forging and pressing equipment, and discloses a large forging hammer high-falling-prevention hook head positioning key structure and a fixing method.The large forging hammer high-falling-prevention hook head positioning key structure comprises a positioning key body, a slope face is arranged at one end of the positioning key body, and a wedge inserting groove is formed in the other end of the positioning key body; a clamping groove is formed in the connecting position of the wedge inserting groove and the positioning key body, and the clamping groove is a downwards-sunken circular groove. A limiting hole is formed in a hammer arm of the forging hammer equipment, an elastic piece is arranged in the limiting hole, and a clamping steel ball is arranged on the elastic piece. The clamping steel balls are movably connected with the clamping grooves in an abutting mode. The forging hammer is simple in structure and easy to install, the secondary falling risk of auxiliary parts can be avoided while the positioning key can be effectively prevented from falling off, and therefore the high falling risk of sliding caused by forging vibration is reduced, production safety is guaranteed, the strength and precision of the whole forging hammer are guaranteed, and production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of forging equipment, and in particular to a positioning key structure and a fixing method for a large forging hammer anti-falling hook head. Background Art

[0002] The forging hammer is a highly efficient forging process equipment, which uses a pneumatic or hydraulic transmission mechanism to quickly accumulate kinetic energy in the falling part and apply this energy to the forging in a very short time, thereby completing various forging operations. Figure 1 As shown, the body of the forging hammer generally includes hammering components such as anvil 1, hammer arm 2, crossbeam 3, power head 4 and hammer head die 6. The two ends of the crossbeam are mounted on the hammer arm, and the connecting mechanism of the power head is fixed in the middle.

[0003] The hook head positioning key 5 is a key component in the forging hammer body, which is mainly used to fix the hammer arm and the crossbeam to prevent their longitudinal displacement and prevent the lateral relative displacement between them. Its performance directly affects the strength and accuracy of the entire forging hammer.

[0004] The hook head positioning key currently used is as shown in the attached Figure 2 As shown, it is mainly composed of a square key body 7 and a hook head 8 at the tail end. The square key body is used to fix the hammer arm and the crossbeam to prevent their relative displacement, and the hook head part mainly cooperates with other auxiliary structures to fix the square key body to prevent it from withdrawing.

[0005] However, due to the special working conditions of the forging hammer, the vibration and shaking of the hammer body caused by the reciprocating forging can easily cause the hook head positioning key to slip out of the original slot, affecting the processing efficiency of the forging hammer. It can also easily cause a high-altitude fall accident, causing production safety problems. To address this problem, welding blocks or bolts are often used on the hook head to prevent the positioning key from moving or slipping. However, the welding blocks or bolts used will become secondary hazards of high-altitude falls under high-intensity vibrations, making it difficult to avoid safety accidents of high-altitude falls. Summary of the invention

[0006] The present invention aims to provide a large forging hammer anti-fall hook head positioning key structure and fixing method, so as to solve the problem that the existing hook head positioning key is very likely to fall from a high altitude in high-intensity vibration conditions, causing production safety accidents.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a large-scale forging hammer anti-fall hook head positioning key structure, including a positioning key body, a slope surface is provided at one end of the positioning key body, and a wedge groove is provided at the other end of the positioning key body; a locking groove is provided at the connection between the wedge groove and the positioning key body, and the locking groove is a circular groove recessed downward; a limiting hole is provided on the hammer arm of the forging hammer equipment, an elastic part is provided in the limiting hole, and a locking steel ball is provided on the elastic part; the locking steel ball is movably abutted against the locking groove.

[0008] Furthermore, the length of the positioning key body is 320mm-360mm, the width is 80mm-110mm, and the height is 30mm-60mm, so as to meet the positioning requirements, avoid relative displacement between the hammer arm and the beam, facilitate installation and positioning, reduce the tedious process of repeated adjustments in the middle, and improve installation efficiency.

[0009] Furthermore, the slope surface has an inclination angle of 30 to 60 degrees, so as to satisfy the requirement of having a certain inclination, being able to gradually apply pressure downward, being easy to install, reducing the difficulty of installation work, and being more conducive to advancement.

[0010] Furthermore, the height of the wedge slot is consistent with the radius of the positioning slot, and the width of the wedge slot is 1 / 4-1 / 3 of the diameter of the positioning slot. This maximizes the width and strength of the disassembly tooling to assist disassembly, while allowing the wedge slot to limit the movement of the positioning steel ball to ensure the stability of the positioning key.

[0011] Furthermore, the length of the slope surface is 1 / 4-1 / 3 of the length of the positioning key body. In order to make the transition of the tilt angle smoother and prevent the equipment parts from being scratched, the tilt can be slowly reduced. At the same time, a certain area of ​​the plane should be reserved on the positioning key body so that the upper and lower sides of the positioning key body can be closely contacted with the hammer arm and the crossbeam respectively, thereby achieving the purpose of accurate positioning.

[0012] Furthermore, the diameter of the positioning groove is one third of the width of the positioning groove body.

[0013] Furthermore, the elastic member is a spring, and the locking steel ball moves up and down in the limiting hole through the spring.

[0014] At the same time, the present invention also provides a method for fixing a large forging hammer anti-fall hook head positioning key structure, which is applied to the above positioning key structure and includes the following steps:

[0015] Step 1: After the hammer arm and the crossbeam of the forging hammer are installed in place, the elastic part is installed into the limiting hole, and the positioning steel ball is installed on the elastic part of the limiting hole;

[0016] Step 2, place the slope of the positioning key downward, align it with the positioning slot of the forging hammer equipment, and push the positioning key inward;

[0017] Step 3, the slope surface of the positioning key contacts the positioning steel ball, and gradually squeezes the positioning steel ball downward into the limiting hole, so that the positioning key body is sent into the positioning slot hole;

[0018] Step 4, when the inserting wedge groove of the positioning key passes through the locking steel ball, the locking steel ball moves upward under the restoring force of the elastic member and abuts against the locking groove of the positioning key; the fixed installation is completed.

[0019] Furthermore, the width of the positioning key is consistent with the width of the positioning slot.

[0020] Furthermore, a bayonet hole for disassembly is provided on the positioning key body, and the bayonet hole is axially arranged on the positioning key body.

[0021] The principles and advantages of this solution are:

[0022] In the engineering practice of large forging hammer equipment, due to its huge size and complex working conditions, the design of the positioning key structure in the industry has always followed the traditional concept: by increasing the pressure and strengthening the structure size to ensure the stability of large forging hammers under high-intensity operations. After all, large equipment requires solid fixed support. Most people believe that small structures cannot withstand huge forces and cannot guarantee the fixing effect. This seems to be a deep-rooted consensus in the industry.

[0023] However, this solution breaks through this traditional cognition and adopts a smaller structure of the positioning groove and the positioning steel ball. Through the elastic force of the elastic part, the positioning key is fixed from the inside, which effectively avoids the displacement of the positioning key and further enhances the stability of the positioning key. Only relying on a small force, it can achieve stable fixation of large forging hammer equipment, thereby reducing the need for additional fixation of the positioning key from the outside, thereby avoiding the risk of secondary high-rise falls caused by auxiliary components, improving the strength and accuracy of the forging hammer, and ensuring production safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of large-scale forging hammer equipment in the prior art.

[0025] Figure 2 It is a structural schematic diagram of a hook positioning key in the prior art.

[0026] Figure 3 It is a structural schematic diagram of the positioning key structure of the anti-falling hook head of a large forging hammer according to the present invention.

[0027] Figure 4 It is a side view of the positioning key body of the positioning key structure of the large forging hammer anti-falling hook head of the present invention.

[0028] Figure 5It is a bottom view of the positioning key body of the positioning key structure of the large forging hammer anti-falling hook head of the present invention.

[0029] Figure 6 It is a structural schematic diagram of the positioning key body of the positioning key structure of the anti-falling hook head of a large forging hammer in the second embodiment of the present invention.

[0030] The reference numerals in the accompanying drawings include: anvil 1, hammer arm 2, crossbeam 3, power head 4, hook head positioning key 5, hammer head mold 6, square key body 7, hook head 8, positioning key body 9, positioning slot 10, slope surface 11, wedge slot 12, positioning slot 13, limiting hole 14, elastic member 15, positioning steel ball 16, and pin hole 17. DETAILED DESCRIPTION

[0031] The following is further described in detail through specific implementation methods:

[0032] Embodiment 1

[0033] The large forging hammer anti-fall hook head positioning key structure in this embodiment is a simple structure, more convenient to install and operate, and reusable portable positioning key structure. While effectively preventing the positioning key from slipping, it can also avoid the risk of secondary falling of the attached parts, improve production safety, ensure the strength and accuracy of the forging hammer, and improve production efficiency. Figure 3 As shown, the positioning key structure includes a positioning key body 9 which is an overall square structure. In this embodiment, in order to ensure that the positioning key body 9 can be placed in the positioning slot 10 of the forging hammer equipment and to ensure that the lower hammer arm 2 and the upper cross beam 3 are fixed to avoid relative displacement between the two, the length of the positioning key body is set to 320mm~360mm, the width is 80mm~110mm, and the height is 30mm~60mm. Specifically, the length can be set to 350mm, the width can be 100mm, and the height can be 50mm to meet the positioning requirements.

[0034] Combined with Figure 4 As shown, a slope surface 11 is provided at one end of the positioning key body 9. In this embodiment, the length of the slope surface 11 is set to 1 / 4-1 / 3 of the length of the positioning key body 9 to ensure that the length of the slope surface 11 can meet the effect of slowly reducing the inclination, making the inclination angle smoother and avoiding scratching equipment parts. At the same time, a part of the plane needs to be reserved for the positioning key body 9 so that the upper and lower sides of the positioning key body 9 can abut against the hammer arm 2 and the crossbeam 3, thereby achieving a positioning effect. In this embodiment, the inclination angle of the slope surface 11 is set to 30-60° to meet the requirements of having a certain inclination, being able to gradually apply pressure downward, being easy to install, reducing the difficulty of installation work, and being more conducive to advancement.

[0035] A wedge slot 12 is provided at the other end of the positioning key body 9. A clamping slot 13 is provided at the connection between the wedge slot 12 and the positioning key body 9. In this embodiment, the clamping slot 13 is a circular slot concave downward, and the height of the wedge slot 12 is consistent with the radius of the clamping slot 13.

[0036] Combined with Figure 3 As shown, a limit hole 14 is also provided on the hammer arm 2 of the forging hammer device, and the aperture of the limit hole 14 is the same as the diameter of the positioning slot 13. An elastic member 15 is installed in the limit hole 14, and a positioning steel ball 16 is arranged on the elastic member 15, so that the positioning steel ball 16 can be higher than the surface of the limit hole 14 in the natural state of the elastic member 15. At the same time, after the positioning key body 9 is inserted into the positioning slot 10, the positioning steel ball 16 can be movably abutted against the positioning slot 13 to limit and fix the positioning key body 9. The elastic member 15 can be a spring, and the positioning steel ball 16 moves up and down in the limit hole 14 through the spring.

[0037] Combined with Figure 5 As shown, in order to improve the strength of the locking steel ball 16, the diameter of the locking groove 13 is one-third of the width of the positioning groove body 9. In order to reduce the risk of lateral displacement of the locking steel ball 16, the depth of the locking groove 13 is 1 / 3-3 / 7 of the locking steel ball 16, ensuring that the center of the locking steel ball 16 is always below the contact surface between the positioning key body 9 and the top surface of the hammer arm 2. In order to improve the strength of the contact surface between the positioning key body 9 and the locking steel ball 16, the width of the wedge slot 12 is 1 / 4-1 / 3 of the diameter of the locking groove 13.

[0038] In the engineering practice of large forging hammer equipment, due to its huge size and complex working conditions, the industry has long followed the traditional concept for the design of the positioning key structure. In order to ensure the stability of large forging hammers under high-intensity operations, the conventional practice is to increase the pressure and strengthen the structure size. After all, large equipment requires stable support, so most people firmly believe that small structures cannot withstand huge forces and cannot guarantee the fixing effect, and will not consider using structures without fixed connection effects.

[0039] In this embodiment, this traditional technical prejudice is broken, a smaller size of the positioning groove and the positioning steel ball are used to cooperate with each other, and the elastic force generated by the elastic member is used to firmly fix the positioning key from the inside. The displacement of the positioning key is effectively avoided, and the stability of the positioning key is significantly enhanced. Moreover, only a small external force can be used to reliably fix the large forging hammer equipment.

[0040] On this basis, in this embodiment, the need for additional external fixing of the positioning key is also reduced. These parts are at risk of secondary high-rise falls during the operation of the equipment. This solution cleverly avoids this risk, while improving the strength and accuracy of the forging hammer, providing a solid guarantee for production safety.

[0041] Embodiment 2

[0042] In this embodiment, a method for fixing a positioning key structure of a large forging hammer anti-fall hook head is provided. It is applied to the above positioning key structure. Figure 5 As shown, the following steps are included:

[0043] S1, combined with Figure 1 and attached Figure 3 As shown, after the hammer arm 2 and the crossbeam 3 of the forging hammer are installed in place, the elastic member 15 is installed into the limiting hole 14, and the locking steel ball 16 is installed on the elastic member 15 of the limiting hole 14, so that the locking steel ball 16 is higher than the surface of the limiting hole 14 in a natural state, which is the initial state.

[0044] S2, place the slope surface 11 of the positioning key downward and align it with the positioning slot 10 of the forging hammer equipment, push the positioning key inward, and press the positioning key into the positioning slot.

[0045] In this embodiment, the width of the positioning key is set to be consistent with the width of the positioning slot 10 to ensure that it is installed in place, and the relative position of the positioning slot 13 and the limiting hole 14 can be guaranteed without excessive adjustment, so that the positioning steel ball 16 can enter the positioning slot 13 more smoothly, thereby improving installation efficiency, reducing installation difficulty, and reducing the tedious process of repeated adjustments.

[0046] S3, the slope surface 11 of the positioning key contacts the positioning steel ball 16, and gradually presses the positioning steel ball 16 downward into the limiting hole 14, so that the positioning key body is sent into the positioning slot 10.

[0047] At this time, the inclined surface 11 of the positioning key gradually pushes the positioning steel ball 16 downward with the inward thrust, and the positioning steel ball 16 causes the elastic member 15 to be squeezed and contracted and moved downward after being subjected to the extrusion force, until the positioning steel ball 16 completely enters the limiting hole 14, so that the positioning key can be smoothly installed in the positioning slot 10.

[0048] S4, when the inserting wedge groove 12 of the positioning key passes through the locking steel ball 16, the locking steel ball 16 moves upward under the restoring force of the elastic member 15 and abuts against the locking groove 13 of the positioning key; the fixed installation is completed.

[0049] When the positioning key is pushed to a certain depth, the wedge groove 12 passes through the position of the locking steel ball 16, and there is no downward extrusion pressure on the upper end of the locking steel ball 16. At this time, the elastic member 15 will return to the initial state with its own elastic force, and will drive the locking steel ball 16 to move upward, so that the upper surface of the locking steel ball 16 abuts against the locking groove 13 of the positioning key body, thereby clamping and fixing the positioning key from the bottom to prevent the positioning key from being displaced, thereby achieving the effect of fixed limit.

[0050] In this embodiment, a latch hole 17 for disassembly is also provided on the positioning key body 9. Figure 6 As shown, the bayonet hole 17 is axially arranged on the positioning key body 9 to facilitate the disassembly of the positioning key, improve the disassembly and assembly efficiency, and reduce the difficulty of the operation.

[0051] In this embodiment, the locating key can be installed in place with a smaller force, which greatly reduces the difficulty and intensity of the operation, ensures that the locating key can be accurately and quickly installed in place and fixed to achieve integrated installation, effectively improves the installation efficiency, and can ensure the stability and firmness of the locating key, thereby ensuring the strength and accuracy of the forging hammer equipment, improving the overall processing efficiency, and reducing failure and safety risks.

[0052] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. The large forging hammer anti-fall hook head positioning key structure is characterized by: It includes a positioning key body, a slope surface is provided at one end of the positioning key body, and a wedge groove is provided at the other end of the positioning key body; a locking groove is provided at the connection between the wedge groove and the positioning key body, and the locking groove is a circular groove that is concave downward; a limiting hole is provided on the hammer arm of the forging hammer equipment, an elastic part is provided in the limiting hole, and a locking steel ball is provided on the elastic part; the locking steel ball is movably abutted against the locking groove.

2. The large forging hammer anti-fall hook head positioning key structure according to claim 1 is characterized in that: The length of the positioning key body is 320 mm to 370 mm, the width is 80 mm to 110 mm, and the height is 30 mm to 60 mm.

3. The large forging hammer anti-fall hook head positioning key structure according to claim 1 is characterized in that: The inclination angle of the slope surface is 30 to 60 degrees.

4. The large forging hammer anti-fall hook head positioning key structure according to claim 1 is characterized in that: The height of the wedge insertion groove is consistent with the radius of the locking groove; the width of the wedge insertion groove is 1 / 4-1 / 3 of the diameter of the locking groove.

5. The large forging hammer anti-fall hook head positioning key structure according to claim 1 is characterized in that: The length of the slope surface is 1 / 4-1 / 3 of the length of the positioning key body.

6. The large forging hammer anti-fall hook head positioning key structure according to claim 1, characterized in that: The diameter of the positioning groove is one third of the width of the positioning groove body.

7. The large forging hammer anti-fall hook head positioning key structure according to claim 1, characterized in that: The elastic member is a spring, and the positioning steel ball moves up and down in the limiting hole through the spring.

8. A method for fixing a positioning key structure of a large forging hammer anti-fall hook head, characterized in that: The large forging hammer anti-fall hook head positioning key structure applied to any one of claims 1 to 7 comprises the following steps: Step 1: After the hammer arm and the crossbeam of the forging hammer are installed in place, the elastic part is installed into the limiting hole, and the positioning steel ball is installed on the elastic part of the limiting hole; Step 2, place the slope of the positioning key downward, align it with the positioning slot of the forging hammer equipment, and push the positioning key inward; Step 3, the slope surface of the positioning key contacts the positioning steel ball, and gradually squeezes the positioning steel ball downward into the limiting hole, so that the positioning key body is sent into the positioning slot hole; Step 4, when the inserting wedge groove of the positioning key passes through the locking steel ball, the locking steel ball moves upward under the restoring force of the elastic member and abuts against the locking groove of the positioning key; the fixed installation is completed.

9. The method for fixing the positioning key structure of the large forging hammer anti-fall hook head according to claim 8, characterized in that: The width of the positioning key is consistent with the width of the positioning slot.

10. The method for fixing the positioning key structure of the large forging hammer anti-fall hook head according to claim 8, characterized in that: A bayonet hole for disassembly is also provided on the positioning key body, and the bayonet hole is axially arranged on the positioning key body.

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