A drive shaft turning device

Abstract

This utility model belongs to the technical field of turning devices, specifically relating to a drive shaft turning device, including a base. A lead screw is mounted inside the base via bearings. A movable seat is threadedly connected to the outer side of the lead screw, and the movable seat is slidably connected to the inside of the base. A self-lubricating mechanism is provided inside the movable seat. A driving device is fixedly connected to the top of the movable seat, and the driving device is slidably connected to the upper end of the base. This utility model, by providing a self-lubricating mechanism at the movable seat and the lead screw used for the driving device, allows the sliding pin in the self-lubricating mechanism to retract under the reaction force of the protrusion when the movable seat moves axially with the lead screw. Furthermore, the pad squeezes the sponge block, releasing lubricating oil. This lubricates the threaded connection between the lead screw and the movable seat, preventing jamming and achieving automatic lubrication, reducing wear, and increasing service life.

Description

Technical Field

[0001] This utility model relates to the field of turning device technology, specifically a drive shaft turning device. Background Technology

[0002] The drive shaft is an important component of the automotive transmission system, and cutting the shaft is one of the steps in its manufacturing process.

[0003] A search revealed that invention patent CN114769628A discloses a drive shaft turning device, which includes a sliding assembly comprising a sliding seat, a sliding shell, and a base. The sliding shell is disposed on the base, and the sliding seat cooperates with the sliding shell. A fixing assembly includes a main moving block, a side moving block, and an unlocking block. The main moving block, the side moving block, and the unlocking block are disposed inside the sliding shell. The main moving block cooperates with the side moving block, and the unlocking block is connected to the side moving block. Two side moving blocks are provided. This device, through the cooperation of the sliding assembly and the fixing assembly, enables machining of the rotating shaft without disassembly. Only simple operation of the device is required to continue machining the other side, reducing the time spent changing the fixed rotating shaft and improving work efficiency.

[0004] However, in existing drive shaft turning devices, the lateral movement of the drive components is generally achieved through lead screw assemblies. However, lead screw assemblies experience wear during repeated rotation, leading to not only impaired rotation but also reduced service life. Furthermore, the lead screw assembly can loosen due to machine vibration, resulting in unstable workpiece clamping. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of this utility model is to provide a drive shaft turning device, which solves the problem that in the existing drive shaft turning device, the lateral movement of the driving component is generally carried out by the lead screw assembly. However, the lead screw assembly will wear down during repeated rotation, which not only makes the rotation difficult, but also reduces the service life due to wear. At the same time, it solves the problem that the lead screw is easy to loosen due to machine vibration.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a drive shaft turning device, comprising a base, a lead screw mounted inside the base via bearings, a movable seat connected to the outer side of the lead screw via threads, the movable seat being slidably connected to the inside of the base, a self-lubricating mechanism being provided inside the movable seat, a driving device being fixedly connected to the top of the movable seat, and the driving device being slidably connected to the upper end of the base, a wheel being fixedly connected to one end of the lead screw located outside the base, a fixed ring being fixedly connected to the lead screw, a locking disc being slidably sleeved on the outer side of the lead screw, the locking disc abutting against the base, a spring being sleeved on the outer side of the lead screw, and a locking block being fixedly connected to the base, the locking disc engaging with the locking block.

[0007] Preferably, one end of the first spring is fixedly connected to the fixed ring, and the other end of the first spring is fixedly connected to the locking disc. By configuring the first spring, the elastic force can be applied to the locking disc.

[0008] Preferably, a guide block is fixedly connected to the inner ring wall of the locking disc, and the guide block is slidably connected to the lead screw. The guide block guides the axial movement of the locking disc along the lead screw.

[0009] Preferably, the self-lubricating mechanism includes a pad and a sponge block slidably connected inside the movable seat, with the pad and sponge block in contact with each other. A sliding pin is fixedly connected to the bottom of the pad, passing through the movable seat and slidably connected to it. A second spring is sleeved on the outside of the pin, one end of which is fixedly connected to the pad, and the other end is fixedly connected to the inner surface of the movable seat. The end of the sliding pin is slidably connected to the inner surface of the base. Multiple protrusions are fixedly connected to the inner surface of the base, with the protrusions corresponding to the sliding pin. An oiling plug is slidably connected to the side wall of the movable seat, and an oil outlet hole is opened on the inner ring wall of the movable seat, with the oil outlet hole corresponding to the sponge block. Through the self-lubricating mechanism, the movable seat and the lead screw are automatically lubricated.

[0010] Preferably, a sealing ring is embedded in the side of the pad, and the sealing ring contacts the inner surface of the movable seat. The sealing ring provides a sealing effect for the pad.

[0011] Preferably, a guide rod is fixedly connected inside the movable seat, the guide rod passing through the pad and slidably connected to the pad. The guide rod guides the sliding of the pad under force.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model provides a self-lubricating mechanism at the moving seat and lead screw of the drive device. When the moving seat moves axially with the lead screw, the sliding pin in the self-lubricating mechanism will be retracted by the reaction force of the protrusion and squeezed by the pad to release the lubricating oil. This can lubricate the threaded connection between the lead screw and the moving seat, avoid jamming, achieve automatic lubrication, reduce wear, and improve service life.

[0014] 2. This utility model sets a fixing ring, a locking disc, a spring, and a guide block on the part of the lead screw located on the outside of the base, and then sets a locking block on the base that engages with the locking disc. In this way, after the drive device moves through the moving seat and the lead screw, the locking disc can be reset under the action of the spring and engage with the locking block to lock the lead screw, thereby ensuring the stability of the drive device and the stability of the transmission shaft during turning. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of this utility model;

[0016] Figure 2 This utility model Figure 1 A partial structural diagram;

[0017] Figure 3 This utility model Figure 1 A partial structural front sectional view;

[0018] Figure 4 This utility model Figure 3 Enlarged view of point A;

[0019] Figure 5 This utility model Figure 3 Enlarged view of point B

[0020] In the diagram: 1. Base; 2. Lead screw; 3. Moving seat; 4. Self-lubricating mechanism; 5. Drive device; 6. Rotary wheel; 7. Fixing ring; 8. Locking disc; 9. Spring 1; 10. Guide block; 11. Locking block; 41. Pad; 42. Sponge block; 43. Sliding pin; 44. Spring 2; 45. Guide rod; 46. Sealing ring; 47. Protrusion; 48. Oil outlet; 49. Oil filling plug. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1 and Figure 3 A drive shaft turning device includes a base 1, a lead screw 2 is mounted inside the base 1 via bearings, a movable seat 3 is threadedly connected to the outside of the lead screw 2, and the movable seat 3 is slidably connected to the inside of the base 1. A drive device 5 is fixedly connected to the top of the movable seat 3, and the drive device 5 is slidably connected to the upper end of the base 1.

[0023] Please see Figure 1 , Figure 2 , Figure 3 and Figure 5 A rotating wheel 6 is fixedly connected to one end of the lead screw 2 located outside the base 1. A fixing ring 7 is fixedly connected to the body of the lead screw 2. A locking disc 8 is slidably sleeved on the outside of the lead screw 2, and the locking disc 8 abuts against the base 1. A spring 9 is sleeved on the outside of the lead screw 2, with one end of the spring 9 fixedly connected to the fixing ring 7 and the other end of the spring 9 fixedly connected to the locking disc 8. The spring 9 allows the elastic force to be applied to the locking disc 8. A locking block 11 is fixedly connected to the base 1, and the locking disc 8 engages with the locking block 11. A guide block 10 is fixedly connected to the inner ring wall of the locking disc 8, and the guide block 10 is slidably connected to the lead screw 2. The guide block 10 guides the axial movement of the locking disc 8 on the lead screw 2.

[0024] Please see Figure 3 and Figure 4 The movable seat 3 is equipped with a self-lubricating mechanism 4. The self-lubricating mechanism 4 provides automatic lubrication for the movable seat 3 and the lead screw 2. The self-lubricating mechanism 4 includes a pad 41 and a sponge block 42 that are slidably connected inside the movable seat 3 and are in contact with each other. A sliding pin 43 is fixedly connected to the bottom of the pad 41. The sliding pin 43 passes through the movable seat 3 and is slidably connected to the movable seat 3. A second spring 44 is sleeved on the outside of the pin body of the sliding pin 43. One end of the second spring 44 is fixedly connected to the pad 41 and the other end of the second spring 44 is fixedly connected to the inner surface of the movable seat 3. The end of the sliding pin 43 is slidably connected to the inner surface of the base 1. A plurality of protrusions 47 are fixedly connected to the inner surface of the base 1 and the positions of the protrusions 47 correspond to the sliding pin 43. An oiling plug 49 is slidably connected to the side wall of the movable seat 3. An oil outlet hole 48 is opened on the inner ring wall of the movable seat 3 and the position of the oil outlet hole 48 corresponds to the sponge block 42. A sealing ring 46 is embedded in the side of the pad 41, and the sealing ring 46 contacts the inner surface of the movable seat 3. The sealing ring 46 provides a sealing effect for the pad 41. A guide rod 45 is fixedly connected inside the movable seat 3, passing through the pad 41 and slidably connected to it. The guide rod 45 guides the sliding of the pad 41 under force.

[0025] The specific implementation process of this utility model is as follows: In use, firstly, pull the locking disc 8 so that it slides on the lead screw 2 and compresses the spring 9. At the same time, the locking disc 8 separates from the locking block 11 on the base 1, thus releasing the restriction on the lead screw 2. Then, the lead screw 2 is rotated by the rotating wheel 6, and the moving seat 3 moves axially on the lead screw 2 through the threaded movement, thereby driving the drive device 5 to move. Then, the vise on the base 1 clamps the transmission shaft and drives it to rotate. Subsequently, the locking disc 8 is released, and the locking disc 8 will spring back to its original position. The spring 9 resets the screw and re-engages with the locking block 11, thereby locking the lead screw 2 and ensuring the stability of the drive device 5 and the stability of the transmission shaft during machining. In addition, when the moving seat 3 moves axially with the lead screw 2, the sliding pin 43 in the self-lubricating mechanism 4 will be retracted by the reaction force of the protrusion 47 and squeezed by the pad 41 to release the lubricating oil. This can lubricate the threaded connection between the lead screw 2 and the moving seat 3, preventing jamming and achieving automatic lubrication.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A transmission shaft turning device comprising a base (1), characterized in that: The base (1) has a lead screw (2) installed inside by bearings. The outer side of the lead screw (2) is connected to a movable seat (3) by threads, and the movable seat (3) is slidably connected to the inside of the base (1). The movable seat (3) is provided with a self-lubricating mechanism (4). The top of the movable seat (3) is fixedly connected to a driving device (5), and the driving device (5) is slidably connected to the upper end of the base (1). The end of the lead screw (2) located outside the base (1) is fixedly connected to a rotating wheel (6). A fixing ring (7) is fixedly connected to the body of the lead screw (2). A locking disc (8) is slidably sleeved on the outer side of the lead screw (2). The locking disc (8) abuts against the base (1). A spring (9) is sleeved on the outer side of the lead screw (2). A locking block (11) is fixedly connected to the base (1). The locking disc (8) and the locking block (11) are engaged.

2. A transmission shaft turning device according to claim 1, characterized in that: One end of the spring (9) is fixedly connected to the fixed ring (7), and the other end of the spring (9) is fixedly connected to the lock disc (8).

3. The drive shaft turning device according to claim 1, characterized in that: The inner ring wall of the lock disc (8) is fixedly connected to a guide block (10), and the guide block (10) is slidably connected to the lead screw (2).

4. The drive shaft turning device according to claim 1, characterized in that: The self-lubricating mechanism (4) includes a pad (41) and a sponge block (42) slidably connected inside the movable seat (3), with the pad (41) and the sponge block (42) in contact with each other. A sliding pin (43) is fixedly connected to the bottom of the pad (41), the sliding pin (43) passes through the movable seat (3) and is slidably connected to the movable seat (3). A second spring (44) is sleeved on the outside of the pin body of the sliding pin (43), one end of the second spring (44) is fixedly connected to the pad (41). The other end of the second (44) is fixedly connected to the inner surface of the movable seat (3). The end of the sliding pin (43) is slidably connected to the inner surface of the base (1). The inner surface of the base (1) is fixedly connected with a plurality of protrusions (47), and the position of the protrusions (47) corresponds to the sliding pin (43). The side wall of the movable seat (3) is slidably connected with an oiling plug (49). The inner ring wall of the movable seat (3) is provided with an oil outlet hole (48), and the position of the oil outlet hole (48) corresponds to the sponge block (42).

5. A drive shaft turning device according to claim 4, characterized in that: A sealing ring (46) is embedded in the side of the pad (41), and the sealing ring (46) contacts the inner surface of the movable seat (3).

6. A drive shaft turning device according to claim 4, characterized in that: The movable seat (3) is internally fixedly connected to a guide rod (45), which passes through the pad (41) and is slidably connected to the pad (41).

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