Outer taper thread root fillet rolling device

Abstract

The utility model provides an external taper thread root fillet rolling device. The external taper thread root fillet rolling device comprises a positioning rod, a taper cylinder block fixedly arranged at the end of the positioning rod, a camber beam fixedly arranged on the taper cylinder block, a supporting cylinder obliquely installed at the end of the camber beam, a hydraulic cylinder fixedly arranged in the supporting cylinder, a rolling seat fixedly arranged at the end of a piston rod in the hydraulic cylinder, and a rotating roller arranged at the end of the rolling seat. And the high-precision, efficient, safe and reliable machining process is achieved. According to the utility model, not only are powerful driving force and accurate control provided, but also a good reset function and wide applicability are achieved, and the device is very suitable for the industry needing high-quality thread machining. The design not only improves the production efficiency and the product quality, but also reduces the maintenance cost and the technical difficulty, and has remarkable technical advantages and practical application value.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of machining, concretely relates to a outer taper thread tooth root fillet rolling device. BACKGROUND

[0002] In the machining process of outer taper thread, a common problem is poor quality of thread tooth root forming. This quality problem often leads to the following consequences: the poorly formed tooth root cannot provide sufficient mechanical support, resulting in a decrease in the overall strength of the threaded connection. Low-quality tooth roots are prone to wear, cracking and other problems during use, affecting the durability and service life of the thread. The overall performance of the final product is negatively affected, especially in high-stress or high-frequency vibration application environments.

[0003] To improve this problem, additional strengthening treatments such as heat treatment, surface coating, etc. are usually required after machining is completed. However, these methods increase production costs and complexity and may not completely solve the root cause of the problem. SUMMARY

[0004] The main purpose of the utility model is to provide a outer taper thread tooth root fillet rolling device, which solves the problems in the background art.

[0005] To solve the above technical problems, the utility model adopts the technical scheme of: including a positioning rod, a tapered block is fixedly arranged at the end of the positioning rod, a bent beam is fixedly arranged on the tapered block, an inclined support cylinder is arranged at the end of the bent beam, a hydraulic cylinder is fixedly arranged in the support cylinder, a rolling seat is fixedly arranged at the end of the piston rod in the hydraulic cylinder, and a rotating roller is arranged at the end of the rolling seat.

[0006] In use, the positioning rod is inserted into the inner hole of the workpiece for positioning, and the roller at the end of the rolling seat driven by the hydraulic cylinder abuts against the outer taper thread on the workpiece.

[0007] Preferably, the bent beam is L-shaped, an inclined clamping groove is arranged at the end of the bent beam, the support cylinder is abutted against in the clamping groove through a clamping block, and is locked and fixed through bolts, so that the inclination angle of the support cylinder matches the angle of the outer taper thread.

[0008] Preferably, a tapered rod is arranged at the end of the positioning rod, the tapered block is sleeved on the tapered rod, a locking nut is threadedly connected at the end of the tapered rod, and the locking nut is tightened to fix the tapered block against the tapered rod.

[0009] Preferably, a wrench is sleeved on the locking nut.

[0010] Preferably, a sliding piston rod is arranged in the cylinder barrel of the hydraulic cylinder, oil inlets are arranged on both sides of the tail of the cylinder barrel and communicate with the inside, an external thread is arranged on the end of the cylinder barrel, the cylinder barrel is connected with the support cylinder through the external thread, a threaded shaft is fixedly arranged on the end of the piston rod, and the threaded shaft is connected with the rolling seat through a thread.

[0011] Preferably, a cylinder cover is fixedly arranged on the end of the cylinder barrel, a sliding sleeve is arranged in the cylinder barrel, one end of the sliding sleeve abuts against the cylinder cover, and the other end of the sliding sleeve is connected with the piston on the end of the piston rod through a spring, so that the piston rod can be reset through the spring.

[0012] Preferably, a radial notch is arranged on one side of the end of the support cylinder, a threaded hole is arranged in the notch, and a screw is screwed in the threaded hole, so that the notch is retracted and the hydraulic cylinder is fixed.

[0013] The utility model provides a kind of outer taper thread tooth bottom fillet rolling device, and beneficial effect is:

[0014] 1, the inclined clamping groove of bent beam end and support cylinder are fixed by clamping block and lock nut, ensure that the angle of support cylinder and the angle of outer taper thread are completely matched, to realize high-precision rolling.The spring in the hydraulic cylinder enables the piston rod to reset quickly, ensuring the consistency and stability of each rolling operation and improving the machining precision.

[0015] 2, machine tool drives workpiece rotation, and worker controls the slow feed of positioning rod by hand wrench, realizes the efficient continuous production process.This design not only improves production efficiency, but also allows operators to flexibly adjust the feed speed according to actual conditions.The design of lock nut and threaded connection makes the equipment easy to disassemble and maintain, reduces downtime and improves production efficiency.

[0016] 3, the hydraulic cylinder is connected with the support cylinder through the external thread of cylinder barrel, and is provided with cylinder cover and sliding sleeve, to ensure the stability and reliability of the whole system, prevent loosening or failure caused by vibration or other external forces.Cylinder cover and sealing design effectively prevent hydraulic oil leakage, enhance the reliability and durability of the system, and reduce safety hazards. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further described below in combination with drawings and examples:

[0018] Figure 1 It is the overall structure view of the utility model;

[0019] Figure 2 It is the local enlarged view a in the utility model Figure 1 ;

[0020] Figure 3 It is the front sectional view of the utility model Figure 1 ;

[0021] Figure 4 is the front view of the hydraulic cylinder of the utility model;

[0022] Figure 5 is the use schematic view of the utility model;

[0023] In the figure: workpiece 1;Outer taper thread 101;Positioning rod 2;Tapered rod 201;Bent beam 3;Spanner 4;Supporting cylinder 5;Notch 501;Thread hole 502;Hydraulic cylinder 6;Cylinder barrel 601;Piston rod 602;Oil inlet 603;Spring 604;External thread 605;Threaded shaft 606;Slip sleeve 607;Cylinder cover 608;Piston 609;Rolling seat 7;Roller 701;Taper block 8;Lock nut 9;Chuck 10. DETAILED DESCRIPTION

[0024] As Figures 1-5 shown, an outer taper thread tooth base fillet rolling device, including positioning rod 2, positioning rod 2 end solidly provided with taper block 8, taper block 8 on solidly provided with bent beam 3, bent beam 3 end provided with obliquely installed supporting cylinder 5, supporting cylinder 5 in solidly provided with hydraulic cylinder 6, the piston rod 602 end of the hydraulic cylinder 6 solidly provided with rolling seat 7, rolling seat 7 end provided with rotating roller 701;

[0025] When using, positioning rod 2 is inserted into the inner hole of workpiece 1 for positioning, and hydraulic cylinder 6 drives roller 701 at the end of rolling seat 7 to abut against outer taper thread 101 on workpiece 1.

[0026] Through hydraulic cylinder 6, roller 701 is made to abut against outer taper thread 101 for rolling, and at the same time, workpiece 1 is driven to rotate and positioning rod 2 is moved through the machine tool, so that rolling can be carried out along the spiral line.

[0027] The pressure of roller 701 is controlled by hydraulic cylinder 6, so that the rolling degree can be accurately adjusted, thereby ensuring the processing quality. Through automatic operation, including the rotation of the workpiece and the movement of the positioning rod, a continuous and efficient production process is realized.

[0028] Preferably, bent beam 3 is L-shaped, bent beam 3 end is provided with inclined clamping groove, one side of supporting cylinder 5 abuts against clamping groove through clamping block, and is fixed through bolt locking, so that the inclination angle of supporting cylinder 5 matches the angle of outer taper thread 101.

[0029] The inclined clamping groove at the end of bent beam 3 is customized according to the angle of outer taper thread 101, so that supporting cylinder 5 and its hydraulic cylinder 6 and roller 701 are inclined arranged, and roller 701 can abut against the tooth base of outer taper thread 101 for rolling through the drive of hydraulic cylinder 6.

[0030] By changing the angle of the end slot of the curved beam 3 and adjusting the position of the support cylinder 5, the device can adapt to different angles of the external tapered thread 101, improving the versatility and flexibility of the equipment. The customized slot ensures that the inclination angle of the support cylinder 5, hydraulic cylinder 6 and roller 701 matches the external tapered thread 101 perfectly, ensuring the accuracy and consistency of the rolling process. The support cylinder 5 is fixed by bolts, increasing the stability and reliability of the entire system, which helps to improve the processing quality and efficiency

[0031] Preferably, the end of the positioning rod 2 is provided with a tapered rod 201, the tapered cylinder block 8 is sleeved on the tapered rod 201, and the end of the tapered rod 201 is provided with a threaded locking nut 9. The locking nut 9 is tightened to fix the tapered cylinder block 8 against the tapered rod 201.

[0032] The tapered cylinder block 8 is sleeved on the tapered rod 201 and is tightly fixed by the locking nut 9, which is convenient for disassembly and assembly.

[0033] Preferably, a wrench 4 is sleeved on the locking nut 9. The workpiece 1 is clamped by the chuck 10 on the machine tool, so as to drive the workpiece 1 to rotate. The roller 701 abuts against the external tapered thread 101 and moves along the spiral line. The worker only needs to hold the wrench 4 to realize slow feeding.

[0034] Using the wrench 4 for manual feeding provides a more intuitive operation experience. The worker can flexibly adjust the feeding speed according to the actual situation to ensure the stability and consistency of the rolling process. Through manual operation, the worker can control the feeding amount of the roller 701 more finely, which is particularly important when dealing with complex or high-precision external tapered threads. This design not only improves the safety of operation, but also simplifies the operation process of the equipment, reduces the dependence on automatic systems, and is particularly suitable for scenes that need to be frequently adjusted or small-batch production.

[0035] Preferably, a sliding piston rod 602 is arranged in the cylinder barrel 601 of the hydraulic cylinder 6, oil inlets 603 are arranged on both sides of the tail of the cylinder barrel 601 and communicate with the inside, an external thread 605 is arranged at the end of the cylinder barrel 601, the cylinder barrel 601 is connected with the support cylinder 5 through the external thread 605, a threaded shaft 606 is fixedly arranged at the end of the piston rod 602, and the threaded shaft 606 is connected with the rolling seat 7 in a threaded manner.

[0036] A cylinder cover 608 is fixedly arranged at the end of the cylinder barrel 601, a sliding sleeve 607 is arranged in the cylinder barrel 601, one end of the sliding sleeve 607 abuts against the cylinder cover 608, the other end of the sliding sleeve 607 is connected with a piston 609 at the end of the piston rod 602 through a spring 604, and the spring 604 can reset the piston rod 602.

[0037] Through the oil inlet 603 to the cylinder 601 into the hydraulic oil, hydraulic oil push piston 609, so that the piston rod 602 forward, drive roller 701 contact and rolling workpiece 1 on the outer taper thread 101.In the machine tool drive, workpiece 1 rotates, positioning rod 2 along the axial slow movement, so that the roller 701 along the spiral line track of the outer taper thread 101 rolling, complete the thread root fillet processing.When the hydraulic oil pressure decreases, the force of spring 604 push piston rod 602 back to the original position, ready for the next operation.

[0038] Through the hydraulic system provides strong driving force, to ensure that the roller 701 can effectively rolling outer taper thread 101 thread root. The design of sliding sleeve 607 and spring 604 ensure the smooth operation of piston rod 602, reduce vibration and impact, improve the machining accuracy. Cylinder head 608 and sealing design to prevent hydraulic oil leakage, enhance the reliability and durability of the system. Through the manual wrench 4 control feed speed, workers can be adjusted according to the actual situation, adapt to different specifications and types of outer taper thread processing requirements.

[0039] Preferably, the support cylinder 5 end side is provided with radial notch 501, notch 501 is provided with threaded hole 502, by screwing in the threaded hole 502, thus shrinkage notch 501, and then fixed hydraulic cylinder 6.

[0040] Hydraulic cylinder 6 and support cylinder 5 threaded connection, after rotating to the vertical angle by screwing in the threaded hole 502 shrinkage notch 501, so that the hydraulic cylinder 6 can be fixed.

[0041] The above embodiment is only the preferred technical solution of the present application, and should not be regarded as limiting the present application, the protection scope of the present application should be with the technical solution of the claims, including the technical features of the claims of the technical solution of the equivalent replacement scheme for the protection scope. That is, within the scope of equivalent replacement improvement, also within the protection scope of the present application.

Claims

1. A device for rolling fillet radius of external tapered thread, characterized in that: It includes a positioning rod (2), a conical block (8) fixed at the end of the positioning rod (2), a curved beam (3) fixed on the conical block (8), a support cylinder (5) installed at the end of the curved beam (3), a hydraulic cylinder (6) fixed inside the support cylinder (5), a rolling seat (7) fixed at the end of the piston rod (602) in the hydraulic cylinder (6), and a rotating roller (701) at the end of the rolling seat (7). When in use, the positioning rod (2) is inserted into the inner hole of the workpiece (1) for positioning, and the hydraulic cylinder (6) drives the roller (701) at the end of the rolling seat (7) to abut against the external tapered thread (101) on the workpiece (1).

2. The external tapered thread root fillet rolling device according to claim 1, characterized in that: The curved beam (3) is L-shaped, and the end of the curved beam (3) is provided with an inclined slot. The support cylinder (5) is abutted against the slot by a block and locked by bolts so that the inclination angle of the support cylinder (5) matches the angle of the external tapered thread (101).

3. The external tapered thread root fillet rolling device according to claim 1, characterized in that: The end of the positioning rod (2) is provided with a tapered rod (201), the tapered block (8) is sleeved on the tapered rod (201), and the end of the tapered rod (201) is provided with a threaded locking nut (9). The locking nut (9) is tightened to fix the tapered block (8) against the tapered rod (201).

4. The external tapered thread root fillet rolling device according to claim 3, characterized in that: A wrench (4) is fitted onto the locking nut (9).

5. The external tapered thread root fillet rolling device according to claim 1, characterized in that: The cylinder (6) has a sliding piston rod (602) inside the cylinder (601). The cylinder (601) has oil inlets (603) on both sides of the tail end that communicate with the interior. The cylinder (601) has an external thread (605) at the end. The cylinder (601) is threaded to the support cylinder (5) through the external thread (605). The piston rod (602) has a threaded shaft (606) fixed at the end. The threaded shaft (606) is threaded to the rolling seat (7).

6. The external tapered thread root fillet rolling device according to claim 5, characterized in that: A cylinder head (608) is fixed at the end of the cylinder (601). A sliding sleeve (607) is provided inside the cylinder (601). One end of the sliding sleeve (607) abuts against the cylinder head (608), and the other end is connected to the piston (609) at the end of the piston rod (602) through a spring (604). The piston rod (602) can be reset by the spring (604).

7. The external tapered thread root fillet rolling device according to claim 1, characterized in that: The support cylinder (5) has a radial slot (501) on one side of its end. The slot (501) has a threaded hole (502). By screwing a screw into the threaded hole (502), the slot (501) is closed, thereby fixing the hydraulic cylinder (6).

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