Sawtooth-shaped lock ring machining device

Abstract

The invention relates to the technical field of lock ring machining, in particular to a sawtooth-shaped lock ring machining device which comprises an upper tool, a lower tool, a lower tool, a lower tool, a lower tool and a clamping device. The lower tool comprises a limiting section and a positioning section fixed to the lower portion of the limiting section, the limiting section is provided with a containing groove used for containing the lock ring, the groove bottom of the containing groove is provided with a through hole vertically and downwards penetrating through the limiting section and the positioning section, and the through hole is located under the mounting hole; the fixing seat is used for fixing the position of the lower tool; the internal tooth broach comprises a cutting part and a cylindrical rod body, and the cutting part is arranged in the middle section of the rod body. According to the scheme, the problem that when sawteeth on the inner side of the sawtooth locking ring are machined at present, an inner tooth broach is likely to be broken due to inclination of the inner tooth broach is solved.

Description

Technical Field

[0001] This invention relates to the field of lock ring processing technology, and more specifically to a processing apparatus for a serrated lock ring. Background Technology

[0002] The serrated locking ring is a high-precision anti-loosening locking component. The inner and outer diameters of the locking ring have serrated structures. The inner serrations can engage with bolts, studs and other components, while the outer serrations can embed into the mounting base. It forms a double anti-loosening effect under high vibration and high fatigue conditions, and has excellent anti-torsional performance. It is widely used in fields with stringent requirements for locking reliability, such as aerospace engines, gearboxes and precision engineering machinery.

[0003] When machining the internal teeth of a serrated locking ring, the ring is placed on a machining table, and a hydraulic press is used to press down, causing the internal tooth cutter to move downwards and insert into the ring. The continuous downward pressure of the hydraulic press causes the internal tooth cutter to cut serrations on the inside of the ring. During the machining process, the internal tooth cutter must be kept perpendicular to the ring at all times. However, the work platform can become uneven with use, and debris generated during machining can cause displacement of the ring or positioning fixtures. In both cases, the internal tooth cutter cannot maintain a perpendicular position to the ring. If the internal tooth cutter tilts, the continued downward pressure of the hydraulic press can cause it to break. This can lead to increased wear and tear on the internal tooth cutter, increasing production costs. In severe cases, the broken internal tooth cutter could fly out and strike nearby operators, causing a complete accident. Summary of the Invention

[0004] The present invention aims to provide a processing device for serrated locking rings to solve the problem that when processing the inner serrations of serrated locking rings, the internal tooth broach may break due to tilting.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a processing device for a serrated locking ring, comprising: The upper tooling is used for detachable connection with the slider of the hydraulic press, and the lower surface of the upper tooling is provided with mounting holes; The lower tooling includes a limiting section and a positioning section fixed below the limiting section. The limiting section is provided with a placement groove for placing a locking ring. The bottom of the placement groove is provided with a through hole that runs vertically downward through the limiting section and the positioning section, and passes directly below the mounting hole. A fixed base is used to fix the position of the lower tooling; An internal broach includes a cutting section and a cylindrical rod, wherein the cutting section is located in the middle section of the rod.

[0006] Preferably, as an improvement, the upper tooling includes a base and a punch. The punch is coaxially fixedly connected to the lower surface of the base. The mounting hole is located at the center of the lower surface of the punch. The punch has two transversely arranged slide rails located on both sides of the mounting hole and arranged in a mirror symmetrical manner. The slide rails communicate with the mounting hole. A moving rod is slidably connected in the slide rail. One end of the moving rod is hemispherical and located in the mounting hole. A spring is fixedly installed at the other end of the moving rod. The end of the spring away from the moving rod is fixedly connected to the slide rail. The moving rod has a downward inclined groove towards the spring. Two vertical support rods are slidably connected in the punch. The bottom end of the support rod extends out of the lower surface of the convex surface. The top end of the support rod slides in contact with the inclined groove, and the support rod and the inclined groove correspond one-to-one.

[0007] Preferably, as an improvement, the tip of the internal tooth broach is tapered.

[0008] Preferably, as an improvement, the fixing seat is provided with a vertical clearance hole, which is located directly below the through hole, and the clearance hole is used for the internal tooth broach to pass through.

[0009] Preferably, as an improvement, the upper surface of the limiting segment is provided with a groove for inserting a punch, and the placement groove is located at the bottom of the groove.

[0010] The principle and advantages of this solution are as follows: In practical application, the lower tooling is fixed to the fixed seat via the positioning section. The sawtooth locking ring to be processed is placed in the placement groove of the limiting section of the lower tooling and aligned with the through hole. Then, the upper tooling is connected to the hydraulic press slider. The rod of the internal tooth broach is installed in the mounting hole of the upper tooling. At this time, the moving rod in the slide is clamped and fixed by the hemispherical end of the spring force against the rod of the internal tooth broach under the action of the spring force. The hydraulic press drives the upper tooling to move downward, and the punch is inserted into the groove of the limiting section to achieve precise alignment. The internal tooth broach... The cutting part moves down through the through hole and acts on the inside of the locking ring to perform sawing. At the same time, when the upper and lower fixtures are fully engaged, the support rod is squeezed upward by the lower fixture and moves upward through the inclined groove to push the moving rod to slide in the direction of the spring, releasing the clamping of the internal toothed broach. After processing, the internal toothed broach falls through the through hole and the clearance hole of the fixed seat under the action of gravity and gets off the upper fixture. The whole process ensures that the internal toothed broach is always perpendicular to the locking ring through the precise alignment and clamping and unlocking linkage design, avoiding the broach from tilting and breaking.

[0011] 1. Compared with existing technologies, this solution achieves precise alignment between the punch of the upper tooling and the groove of the limiting section of the lower tooling, ensuring coaxial alignment of the upper and lower tooling. This guarantees that the internal broach remains perpendicular to the locking ring, fundamentally preventing problems such as internal tooth cutting dimension deviation and irregular tooth shape caused by broach tilting, thus improving the machining accuracy and consistency of the sawtooth locking ring. Simultaneously, the vertical alignment design effectively prevents the internal broach from breaking due to uneven stress caused by tilting, significantly reducing broach wear rate, tool replacement frequency, and procurement costs. Furthermore, it avoids machining interruptions caused by broach breakage, improving overall machining efficiency and ensuring operator safety.

[0012] 2. This solution utilizes the mechanical linkage during the engagement of the upper and lower tooling. Through the cooperation of the support rod, inclined groove, and moving rod, the clamping of the internal tooth broach is automatically released. The broach falls off the tooling by gravity, eliminating the need for manual disassembly, simplifying the operation, reducing labor intensity, and avoiding secondary risks of manual contact with high temperatures or sharp tools. It also prevents the sawtooth locking ring from getting stuck on the internal tooth broach when the hydraulic press slide moves upward, causing it to move upward as well. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the processing device for a serrated locking ring according to the present invention.

[0014] Figure 2 for Figure 1 A magnified view of A in the middle.

[0015] Figure 3 This is a schematic diagram of the upper and lower tooling in the processing device for a serrated locking ring according to the present invention.

[0016] The reference numerals in the accompanying drawings include: slider 1, base 2, punch 3, limit section 4, fixed seat 5, clearance hole 6, through hole 7, placement groove 8, groove 9, support rod 10, inclined groove 11, spring 12, moving rod 13, mounting hole 14, internal toothed broach 15. Detailed Implementation

[0017] The following detailed description illustrates the specific implementation method: The basic implementation examples are as follows: Figure 1 Appendix Figure 2 and attached Figure 3 As shown: A processing apparatus for a serrated locking ring, comprising: The upper tooling is detachably connected to the slider 1 of the hydraulic press. The lower surface of the upper tooling has a mounting hole 14. The upper tooling includes a base 2 and a punch 3. The punch 3 is coaxially fixedly connected to the lower surface of the base 2. The mounting hole 14 is located at the center of the lower surface of the punch 3. The punch 3 has two transversely arranged slideways located on both sides of the mounting hole 14 and arranged in a mirror-symmetrical manner. The slideways communicate with the mounting hole 14. A moving rod 13 is slidably connected in the slideway. One end of the moving rod 13 is hemispherical and located inside the mounting hole 14. A spring 12 is fixedly installed at the other end of the moving rod 13. The end of the spring 12 away from the moving rod 13 is fixedly connected to the slideway. The moving rod 13 has a downward-sloping groove 11. Two vertical support rods 10 are slidably connected in the punch 3. The bottom end of the support rod 10 extends out of the lower surface of the convex surface. The top end of the support rod 10 slides in contact with the groove 11, and the support rod 10 corresponds one-to-one with the groove 11.

[0018] The lower tooling includes a limiting section 4 and a positioning section fixed below the limiting section 4. The upper surface of the limiting section 4 is provided with a groove 9 for inserting a punch 3. The bottom of the groove 9 is provided with a placement groove 8. The placement groove 8 is used to place the locking ring. The bottom of the placement groove 8 is provided with a through hole 7 that extends vertically downward through the limiting section 4 and the positioning section, and passes directly below the mounting hole 14.

[0019] The fixed base 5 is a tooling fixture for the hydraulic riveting machine. The fixed base 5 is provided with a vertical clearance hole 6, which is located directly below the through hole 7. The clearance hole 6 is used for the internal tooth broach 15 to pass through.

[0020] The internal broach 15 includes a cutting section and a cylindrical rod. The cutting section is located in the middle section of the rod, and the top of the internal broach 15 is tapered.

[0021] The specific implementation process is as follows: In practical applications, the lower tooling is fixed to the fixed base 5 via the positioning section. The sawtooth locking ring to be processed is placed in the placement groove 8 of the limiting section 4 of the lower tooling and aligned with the through hole 7. Then, the upper tooling is connected to the hydraulic press slider 1. The rod of the internal toothed broach 15 is installed in the mounting hole 14 of the upper tooling. At this time, the moving rod 13 in the slide is clamped and fixed by the hemispherical end of the spring 12 against the rod of the internal toothed broach 15 under the action of the spring force. The hydraulic press drives the upper tooling to move downward, and the punch 3 is inserted into the groove 9 of the limiting section 4 to achieve precise alignment. The cutting part of the internal toothed broach 15 moves with the lower tooling. The lower tool moves down through the through hole 7 and acts on the inside of the locking ring to perform sawing. At the same time, when the upper and lower tooling are fully engaged, the support rod 10 is squeezed upward by the lower tooling and moves upward. It pushes the moving rod 13 to slide towards the spring 12 through the inclined groove 11, releasing the clamping of the internal tooth cutter 15. After processing, the internal tooth cutter 15 falls through the through hole 7 and the clearance hole 6 of the fixed seat 5 under the action of gravity and gets off the upper tooling. The whole process ensures that the internal tooth cutter 15 is always perpendicular to the locking ring through the precise alignment and clamping and unlocking linkage design, avoiding the cutter tilting and breaking.

[0022] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A processing device for a serrated locking ring, characterized in that, include: The upper tooling is used for detachable connection with the slider of the hydraulic press, and the lower surface of the upper tooling is provided with mounting holes; The lower tooling includes a limiting section and a positioning section fixed below the limiting section. The limiting section is provided with a placement groove for placing a locking ring. The bottom of the placement groove is provided with a through hole that runs vertically downward through the limiting section and the positioning section, and passes directly below the mounting hole. A fixed base is used to fix the position of the lower tooling; An internal broach includes a cutting section and a cylindrical rod, wherein the cutting section is located in the middle section of the rod.

2. The processing device for a serrated locking ring according to claim 1, characterized in that: The upper tooling includes a base and a punch. The punch is coaxially fixedly connected to the lower surface of the base. The mounting hole is located at the center of the lower surface of the punch. The punch has two transversely arranged slides, which are located on both sides of the mounting hole and are mirror-symmetrically arranged. The slides are connected to the mounting hole. A moving rod is slidably connected in the slide. One end of the moving rod is hemispherical and located in the mounting hole. A spring is fixedly installed at the other end of the moving rod. The end of the spring away from the moving rod is fixedly connected to the slide. The moving rod has a downward inclined groove towards the spring. Two vertical support rods are slidably connected in the punch. The bottom end of the support rod extends out of the lower surface of the convex surface. The top end of the support rod slides in contact with the inclined groove, and the support rod and the inclined groove correspond one-to-one.

3. The processing device for a serrated locking ring according to claim 2, characterized in that: The top of the internal tooth broach is tapered.

4. The processing device for a serrated locking ring according to claim 3, characterized in that: The mounting base is provided with a vertical clearance hole, which is located directly below the through hole, and the clearance hole is used for the internal tooth broach to pass through.

5. The processing device for a serrated locking ring according to claim 4, characterized in that: The upper surface of the limiting section is provided with a groove for inserting a punch, and the placement groove is located at the bottom of the groove.

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