Gear hobbing machine tailstock ejector pin main shaft limiting and fixing structure

Abstract

The utility model relates to the technical field of machining, in particular to a gear hobbing machine tailstock ejector pin spindle limiting and fixing structure which is characterized in that an output shaft of a motor is fixedly connected with a cylinder, the outer wall of the cylinder is fixedly connected with a mounting plate through bolts, and the right side of the outer wall of the mounting plate is fixedly connected with a cylinder; a fixing mechanism is arranged in the cylinder, a positioning mechanism is arranged on the right side of the cylinder, a worker inserts a main shaft into the cylinder from right to left through cooperation of the positioning mechanism and the fixing mechanism, after a positioning block enters a positioning hole, a clamping ring is attached to the right end of the cylinder, and the worker moves a round sleeve from the right side of an ejector pin to the left; and compared with the situation that the worker needs to align with the threaded hole and then insert the connecting frame, the main shaft is inserted into the cylinder, and the main shaft is rotated, positioning can be achieved, and more convenience and rapidness are achieved.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, specifically to a gear hobbing machine tailstock spindle limiting and fixing structure. Background Technology

[0002] The tailstock spindle of the gear hobbing machine, through its precise mechanical structure and intelligent control, has become an indispensable auxiliary unit in gear processing. Its design and maintenance level are directly related to processing efficiency, workpiece quality and equipment life, and are the key guarantee for the high-performance operation of the gear hobbing machine.

[0003] For example, a gear hobbing machine tailstock spindle limiting and fixing structure with announcement number "CN222221359U" involves inserting one end of the spindle body into the gear sprocket and extending it partially. The spindle body has grooves; as it extends, a spring retracts when no external force is applied, causing the fixing block to move downwards. This allows a locking block at the bottom of the fixing block to enter the spindle body, restricting it and preventing it from loosening or falling out of its fixed position during operation. A triangular block, with the help of the connecting frame, presses the fixing block down, further preventing loosening or displacement during operation. However, this structure guides the spindle via a guide screw, requiring the operator to align the threaded hole with the guide screw to fix the spindle body, which is rather cumbersome. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that the above-mentioned structure guides the main shaft through the guide screw, requiring the operator to align the threaded hole with the guide screw in order to fix the main shaft body, which is quite cumbersome. Therefore, a gear hobbing machine tailstock pin main shaft limiting and fixing structure is proposed.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Design a gear hobbing machine tailstock spindle limiting and fixing structure, including a motor, the output shaft of which is fixedly connected to a cylinder, the outer wall of which is threadedly connected to a mounting plate by bolts, a cylinder is fixedly connected to the right side of the outer wall of the mounting plate, a fixing mechanism is provided inside the cylinder, and a positioning mechanism is provided on the right side of the cylinder.

[0007] Preferably, the fixing mechanism includes a circular sleeve, the inner wall of which is threadedly connected to a cylindrical cylinder.

[0008] Preferably, the inner wall of the sleeve is threadedly connected to the threaded rod, the outer wall of the threaded rod is engaged with the locking hole, and the inner wall of the sleeve is machined with a circular hole.

[0009] Preferably, the positioning mechanism includes a main shaft, and a positioning block is fixedly connected to the left end of the outer wall of the main shaft, and the outer wall of the positioning block is inserted into a positioning hole.

[0010] Preferably, a pin is fixedly connected to the right end of the outer wall of the main shaft, and the outer wall of the main shaft is slidably connected to the cylinder.

[0011] Preferably, a retaining ring is fixedly connected to the outer wall of the main shaft, the outer wall of the retaining ring abuts against the cylinder, and the outer wall of the retaining ring abuts against the circular sleeve.

[0012] The present invention provides a limiting and fixing structure for the main shaft of the tailstock ejector pin of a gear hobbing machine. The advantages are as follows: Through the cooperation of the positioning and fixing mechanisms, the operator inserts the main shaft into the cylinder from right to left. The main shaft moves to the left, causing the positioning block to move to the left. When the positioning block is in contact with the inner wall of the cylinder, pressure is applied to the main shaft to the left while rotating the main shaft. The rotation of the main shaft causes the positioning block to rotate, allowing it to enter the positioning hole. After the positioning block enters the positioning hole, the retaining ring is in contact with the right end of the cylinder. The operator moves the sleeve from the right side of the ejector pin to the left, so that the sleeve is fitted onto the ejector pin. Then, the sleeve is rotated. Because the sleeve is threadedly connected to the cylinder, rotating the sleeve moves it to the left. By inserting the rotating rod into the circular hole, the rotating rod can be rotated to drive the sleeve to rotate, making it easier for the operator to rotate the sleeve and tighten it, so that the sleeve presses the retaining ring against the cylinder. Compared to the previous method of aligning the threaded hole and then inserting the connecting frame, simply inserting the main shaft into the cylinder and rotating it once achieves positioning, which is more convenient and faster. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 A front sectional view;

[0015] Figure 3 This is a three-dimensional schematic diagram of a cylinder;

[0016] Figure 4 A three-dimensional schematic diagram with the main axis as the center;

[0017] Figure 5 This is a right-side sectional view of the cylinder;

[0018] Figure 6 for Figure 2 Schematic diagram of part A in the middle.

[0019] In the diagram: 1. Cylinder, 2. Mounting plate, 3. Cylindrical tube, 4. Fixing mechanism, 401. Circular sleeve, 402. Threaded rod, 403. Circular hole, 404. Snap hole, 5. Positioning mechanism, 501. Main shaft, 502. Positioning block, 503. Ejector pin, 504. Snap ring, 505. Positioning hole, 6. Motor. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] See attached document Figure 1-6 :

[0022] In this embodiment, a gear hobbing machine tailstock spindle limiting and fixing structure includes a motor 6, the output shaft of the motor 6 is fixedly connected to a cylinder 1, the output shaft of the motor 6 rotates to drive the cylinder 1 to rotate, and the outer wall of the cylinder 1 is threadedly connected to the mounting plate 2 by bolts.

[0023] The rotation of cylinder 1 drives the rotation of mounting plate 2. A cylinder 3 is fixedly connected to the right side of the outer wall of mounting plate 2. The rotation of mounting plate 2 drives the rotation of cylinder 3. A fixing mechanism 4 is provided inside cylinder 3, and a positioning mechanism 5 is provided on the right side of cylinder 3.

[0024] See attached document Figure 1-3 And 6:

[0025] The fixing mechanism 4 includes a round sleeve 401, the inner wall of which is threadedly connected to the cylinder 3, the round sleeve 401 can be detached from the cylinder 3, and the inner wall of the round sleeve 401 is threadedly connected to the threaded rod 402.

[0026] The outer wall of the threaded rod 402 is engaged with the locking hole 404. The inner wall of the sleeve 401 is machined with a round hole 403. The sleeve 401 can be rotated by inserting the rotating rod into the round hole 403.

[0027] See attached document Figure 1-6 :

[0028] The positioning mechanism 5 includes a main shaft 501, a positioning block 502 is fixedly connected to the left end of the outer wall of the main shaft 501, the outer wall of the positioning block 502 is inserted into the positioning hole 505, a pin 503 is fixedly connected to the right end of the outer wall of the main shaft 501, and the outer wall of the main shaft 501 is slidably connected to the cylinder 3.

[0029] A retaining ring 504 is fixedly connected to the outer wall of the main shaft 501. The outer wall of the retaining ring 504 abuts against the cylinder 3 and the outer wall of the retaining ring 504 abuts against the sleeve 401.

[0030] Working principle:

[0031] The tailstock spindle of the gear hobbing machine is limited and fixed using a tailstock spindle limiting and fixing structure.

[0032] Work process:

[0033] The workers fixed the mounting plate 2 to the cylinder 1 with bolts (e.g.) Figure 1 This fixes the cylinder 3 onto the cylinder 1 (the mounting plate 2 and the cylinder 2 are integrally formed). The operator inserts the spindle 501 into the cylinder 3, from right to left (e.g., ...). Figure 2The main shaft 501 moves to the left, causing the positioning block 502 to move to the left. When the positioning block 502 is in contact with the inner wall of the cylinder 3, the main shaft 501 is rotated while applying pressure to the left.

[0034] The rotation of the main shaft 501 drives the positioning block 502 to rotate. The rotation of the positioning block 502 allows it to enter the positioning hole 505 (the rotation of the cylinder 3 drives the positioning hole 505 to rotate, which in turn drives the positioning block 502 to rotate, and the rotation of the positioning block 502 drives the main shaft 501 to rotate). When the positioning block 502 enters the positioning hole 505, the retaining ring 504 fits against the right end of the cylinder 3.

[0035] The worker moves the circular sleeve 401 from the right side of the ejector pin 503 to the left, so that the circular sleeve 401 is fitted onto the ejector pin 503, and then rotates the circular sleeve 401 (as shown). Figure 2 Since the sleeve 401 is threadedly connected to the cylinder 3, rotating the sleeve 401 will move the sleeve 401 to the left. By inserting the round rod into the round hole 403, the rotating rod can be rotated to drive the sleeve 401 to rotate, making it easier for the operator to rotate the sleeve 401 and tighten it so that the sleeve 401 presses the retaining ring 504 against the cylinder 3.

[0036] Then, by rotating the threaded rod 402, the threaded rod 402 is inserted into the retaining hole 404 (e.g., Figure 6 The threaded rod 403 is pressed tightly against the inner wall of the cylinder 3, and can play a double-layer safety role to prevent the sleeve 401 from loosening due to vibration and falling off.

[0037] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A hobbing machine tailstock top pin spindle limiting and fixing structure, comprising a motor (6), characterized in that: The output shaft of the motor (6) is fixedly connected to a cylinder (1). The outer wall of the cylinder (1) is threadedly connected to the mounting plate (2) by bolts. A cylinder (3) is fixedly connected to the right side of the outer wall of the mounting plate (2). A fixing mechanism (4) is provided inside the cylinder (3). A positioning mechanism (5) is provided on the right side of the cylinder (3).

2. The hobbing machine tailstock center limiting and fixing structure according to claim 1, characterized in that: The fixing mechanism (4) includes a sleeve (401), the inner wall of which is threadedly connected to the cylinder (3).

3. The hobbing machine tailstock center limiting and fixing structure according to claim 2, characterized in that: The inner wall of the sleeve (401) is threadedly connected to the threaded rod (402), the outer wall of the threaded rod (402) is engaged with the locking hole (404), and the inner wall of the sleeve (401) is machined with a round hole (403).

4. The hobbing machine tailstock center limiting and fixing structure according to claim 1, characterized in that: The positioning mechanism (5) includes a main shaft (501), and a positioning block (502) is fixedly connected to the left end of the outer wall of the main shaft (501). The outer wall of the positioning block (502) is inserted into the positioning hole (505).

5. The hobbing machine tailstock center limiting and fixing structure according to claim 4, characterized in that: A pin (503) is fixedly connected to the right end of the outer wall of the main shaft (501), and the outer wall of the main shaft (501) is slidably connected to the cylinder (3).

6. The gear hobbing machine tailstock ejector pin spindle limiting and fixing structure according to claim 5, characterized in that: The outer wall of the main shaft (501) is fixedly connected with a retaining ring (504), the outer wall of the retaining ring (504) abuts against the cylinder (3), and the outer wall of the retaining ring (504) abuts against the round sleeve (401).

Images