Gear shaft key groove milling tool

Abstract

The utility model discloses a gear shaft key groove milling tool which comprises a base, an arc-shaped groove is formed in the base, the arc-shaped groove is attached to a gear shaft, a fixing block is fixedly connected to the base, a rotating rod is rotationally connected to the fixing block, a sliding groove is formed in the base, and the rotating rod is connected to the sliding groove. The rotating rod is in threaded connection with a round hole formed in a sliding block, and the bottom of the sliding block is fixedly connected with a bottom block in sliding connection with the sliding groove. According to the utility model, the position of the sliding block can be changed by rotating the rotating rod, so that the position of the round rod on the sliding block is changed, namely the position of the clamping block is changed until the clamping block is aligned to the corresponding position on the gear shaft, the gear shaft can be fixed by the clamping block by rotating the round rod, and the position of the sliding block cannot be changed even if the sliding block is subjected to external force; therefore, the clamping blocks can fix the gear shaft more stably, and the situation that the clamping blocks are stressed to move, and fixing of the gear shaft is affected is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling, in particular to a gear shaft keyway milling tooling. Background Art

[0002] At present, there are also a wide variety of gear shaft keyway milling tools on the market to facilitate keyway milling.

[0003] The prior art discloses an application number CN202322063679.6. In this comparative document, a clamping block is pushed to move by a tightening bolt, thereby clamping the gear shaft, and then subsequent keyway processing is performed.

[0004] However, the tooling lacks a structure for limiting the tightening bolt. Therefore, when the tightening bolt is subjected to a large external force, the tightening bolt will move in the horizontal long hole, and the clamping block will move along with it, thereby affecting the fixation of the gear shaft.

[0005] Therefore, it is necessary to improve the tooling to avoid the above-mentioned problems. Utility Model Content

[0006] The utility model aims to solve the above problems and provides a tool for milling keyways of gear shafts.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A gear shaft keyway milling tool comprises a base, an arc groove is formed on the base, the arc groove fits the gear shaft, a fixed block is fixedly connected to the base, a rotating rod is rotatably connected to the fixed block, a sliding groove is formed on the base, the rotating rod is connected to a round hole formed on a slider through a thread, the bottom of the slider is fixedly connected to a bottom block slidably connected to the sliding groove, an opening is formed on the slider, a round rod is connected to the opening through a thread, a clamp is fixedly connected to the end of the round rod, and a limiting member for limiting the position of the gear shaft is provided on the base.

[0009] Preferably, the limiting member includes a screw hole on the base, the screw hole is threadedly connected to a screw rotatably connected to the stopper, and the protruding portion of the stopper extends into the arc groove to limit the position of the gear shaft.

[0010] Preferably, an inclined groove is provided on the clamping block, and the inner wall of the inclined groove abuts against the outer wall of the gear shaft.

[0011] Preferably, a connecting block is rotatably connected to the clamping block, and the bottom of the connecting block is slidably connected to the base.

[0012] Preferably, a ball bearing is installed at the bottom of the connecting block.

[0013] Preferably, a side block is fixedly connected to the base, and the side block is rotatably connected to the rotating rod.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0015] 1. The present application can change the position of the slider by rotating the rotating rod, thereby changing the position of the round rod on the slider, that is, changing the position of the clamp block, until the clamp block is aligned with the corresponding position on the gear shaft. The clamp block can fix the gear shaft by rotating the round rod. At this time, even if the slider is subjected to external force, its position cannot be changed. Therefore, the clamp block can fix the gear shaft more stably, avoiding the clamp block from moving under force and affecting the fixation of the gear shaft.

[0016] 2. The present application can block the arc groove on the base under the action of the stop block, thereby effectively preventing the gear shaft from moving under force and leaving the arc groove. Therefore, the tooling can more stably fix the gear shaft on the base, facilitating subsequent processing operations on the gear shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the overall structure of a keyway milling tool provided according to an embodiment of the utility model is shown;

[0018] Figure 2 A schematic diagram of the bottom structure of a keyway milling tool provided according to an embodiment of the utility model is shown;

[0019] Figure 3 A partial structural schematic diagram of a clamping block provided according to an embodiment of the utility model is shown.

[0020] Legend:

[0021] 1. Base; 2. Arc groove; 3. Screw hole; 4. Screw rod; 5. Stop block; 6. Fixed block; 7. Side block; 8. Rotating rod; 9. Slide groove; 10. Sliding block; 11. Round hole; 12. Bottom block; 13. Opening hole; 14. Round rod; 15. Clamp block; 16. Oblique groove; 17. Connecting block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-3 , the utility model provides a technical solution:

[0024] A tool for milling keyway of a gear shaft comprises a base 1, an arc groove 2 is provided on the base 1, the arc groove 2 fits with the gear shaft, a fixed block 6 is fixedly connected to the base 1, a rotating rod 8 is rotatably connected to the fixed block 6, a slide groove 9 is provided on the base 1, the rotating rod 8 is connected to a round hole 11 provided on a slider 10 by threads, a bottom block 12 slidably connected to the slide groove 9 is fixedly connected to the bottom of the slider 10, an opening 13 is provided on the slider 10, a round rod 14 is connected to the opening 13 by threads, a clamping block 15 is fixedly connected to the end of the round rod 14, and a limiting member for limiting the position of the gear shaft is provided on the base 1. A side block 7 is fixedly connected to the base 1, and the side block 7 is rotatably connected to the rotating rod 8. Therefore, under the action of the side block 7, the rotating rod 8 can maintain its own stable position, and can effectively prevent the rotating rod 8 from being moved or damaged by force.

[0025] Specifically, Figure 1 As shown, the limiting member includes a screw hole 3 on the base 1, and the screw hole 3 is connected to the screw rod 4 rotatably connected to the stopper 5 by a threaded connection, and the protruding part of the stopper 5 extends into the arc groove 2 to limit the position of the gear shaft. The clamping block 15 is provided with an inclined groove 16, and the inner wall of the inclined groove 16 abuts against the outer wall of the gear shaft. Under the action of the inclined groove 16, it can better abut against the outer wall of the gear shaft, so the clamping block 15 can better clamp the gear shaft.

[0026] Specifically, Figure 3 As shown, the clamping block 15 is rotatably connected with a connecting block 17, and the bottom of the connecting block 17 is slidably connected with the base 1. A ball bearing is installed at the bottom of the connecting block 17. Under the action of the ball bearing, the friction force can be effectively reduced, so when the clamping block 15 is moving, the connecting block 17 can also move more easily.

[0027] In summary, the gear shaft provided in this embodiment is placed at the arc groove 2 on the base 1, and the rotating rod 8 is rotated to change the position of the clamping block 15 until the clamping block 15 is aligned with the corresponding position of the gear shaft. The round rod 14 is rotated to make the clamping block 15 gradually approach the gear shaft until the inclined groove 16 of the clamping block 15 abuts against the gear shaft, and the gear shaft is clamped and fixed. Then the screw rod 4 is rotated so that the screw rod 4 is connected to the screw hole 3 through a thread, and the protruding part of the stopper 5 on the screw rod 4 that is rotatably connected extends into the arc groove 2.

[0028] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A gear shaft keyway milling tool, comprising a base (1), characterized in that: The base (1) is provided with an arc groove (2), and the arc groove (2) is fitted with the gear shaft. The base (1) is fixedly connected with a fixed block (6), and the fixed block (6) is rotatably connected with a rotating rod (8). The base (1) is provided with a sliding groove (9), and the rotating rod (8) is connected to a round hole (11) provided on the slider (10) through a thread. The bottom of the slider (10) is fixedly connected with a bottom block (12) slidably connected with the sliding groove (9). The slider (10) is provided with an opening (13), and a round rod (14) is connected to the opening (13) through a thread. The end of the round rod (14) is fixedly connected with a clamping block (15), and the base (1) is provided with a limiting member for limiting the gear shaft.

2. A gear shaft keyway milling tool according to claim 1, characterized in that: The position-limiting member comprises a screw hole (3) on a base (1), the screw hole (3) being connected to a screw rod (4) rotatably connected to a stopper (5) through a threaded connection, and a protruding portion on the stopper (5) extending into the arc groove (2) to limit the position of the gear shaft.

3. The gear shaft keyway milling tool according to claim 1, characterized in that: The clamping block (15) is provided with an inclined groove (16), and the inner wall of the inclined groove (16) abuts against the outer wall of the gear shaft.

4. The gear shaft keyway milling tool according to claim 1, characterized in that: The clamping block (15) is rotatably connected to a connecting block (17), and the bottom of the connecting block (17) is slidably connected to the base (1).

5. A gear shaft keyway milling tool according to claim 4, characterized in that: A ball bearing is installed at the bottom of the connecting block (17).

6. The gear shaft keyway milling tool according to claim 1, characterized in that: A side block (7) is fixedly connected to the base (1), and the side block (7) is rotatably connected to a rotating rod (8).

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