Gear keyway machining device

Abstract

The utility model relates to gear processing technical field, and disclose a kind of gear keyway processing device, including processing table, keyway processing subassembly is provided on the processing table, the bottom of keyway processing subassembly is provided with gear clamping assembly, gear body is provided on the gear clamping assembly, the middle part of gear body is provided with the keyway to be processed, the utility model is provided with keyway processing subassembly and gear clamping assembly on processing table, wherein two gear clamps in gear clamping assembly can be driven screw to the driving of driving screw sleeve, the gear body of different specification size placed between two gear clamps is clamped and fixed, and broach in keyway processing subassembly is located in the inner ring wall bottom side of gear body before keyway processing, the equipment can effectively adapt to small factory and small-batch gear keyway processing, complete the accurate processing of keyway, improve the processing efficiency of keyway, greatly save production cost.

Description

Technical Field

[0001] This utility model relates to the field of gear processing technology, specifically a gear keyway processing device. Background Technology

[0002] Gears are an important component in mechanical transmission systems, and gear keyways are grooves on the inside of gears, generally used to achieve the connection and fit between gears and transmission shafts.

[0003] A search revealed that Chinese Patent Publication No. CN 222569479 U discloses a gear keyway machining device. The device comprises a U-shaped mounting base at one upper end of a worktable, on which a movable stage is mounted. A screw is rotatably mounted between the two side plates of the mounting base below the movable stage. One end of the screw extends to the outside of the mounting base and is equipped with a handwheel for driving its rotation. A threaded sleeve adapted to the screw is fixedly mounted at the bottom of the movable stage, and a pneumatic chuck is mounted on the upper part of the movable stage. A support frame is fixedly mounted in the middle of the upper part of the worktable, and a limit sleeve is fixedly mounted on the upper part of the support frame. A drive motor is fixedly mounted at the other upper end of the worktable, and a turntable is mounted on the drive shaft of the drive motor. The turntable is hinged to one end of a first connecting rod near its outer edge. This device can adapt to the machining requirements of gear keyways of different specifications.

[0004] The gear keyway processing device in the aforementioned patent still has certain shortcomings. Due to the fact that some small factories or small batches of gear keyway processing are mostly still manually operated cutting tools to cut grooves, the existing manual keyway processing is mostly of low precision, and the fixtures used are also difficult to adapt to gears of different sizes. Although the overall production cost is reduced, its processing precision and efficiency are greatly reduced, resulting in significant defects in use. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model provides a gear keyway processing device, which solves the problems that existing manual keyway processing is mostly low in precision and the fixtures used are difficult to adapt to gears of different sizes. Although the overall production cost is reduced, the processing precision and efficiency are greatly reduced, resulting in significant defects in use.

[0006] This utility model provides the following technical solution: a gear keyway processing device, including a processing table, a keyway processing component is provided on the processing table, a gear clamping component is provided at the bottom of the keyway processing component, a gear body is provided on the gear clamping component, and a keyway to be processed is opened in the middle of the gear body;

[0007] The keyway machining assembly includes a mounting bracket fixed on the machining table. A machining through hole is provided in the middle of the machining table. A lifting screw is vertically rotatably mounted on the mounting bracket. A servo motor is mounted on the top of the mounting bracket. The drive shaft of the servo motor is fixedly connected to the top of the lifting screw. A pull connecting plate is provided on the bottom side of the lifting screw. The lifting screw is threaded through the pull connecting plate. A mounting base is connected to the end of the pull connecting plate. Lifting limit rods are symmetrically inserted through both sides of the mounting base. The top of the lifting limit rods is fixedly connected to the mounting bracket. A broach is mounted on the bottom of the mounting base.

[0008] The gear clamping assembly includes a drive chamber fixed to the side of the top of the processing table, a drive screw rotatably disposed inside the drive chamber, a drive motor disposed at the end of the drive chamber, and the drive shaft of the drive motor being fixedly connected to the end of the drive screw.

[0009] Preferred technical solution 1: Two drive screw sleeves are symmetrically sleeved at both ends of the drive screw body, and a push connecting rod is fixed to the side of each drive screw sleeve. A gear clamp is fixed to the end of the push connecting rod, and a support plate is provided at the bottom of the inner side wall of the gear clamp. The gear body is disposed between the two gear clamps.

[0010] Preferred technical solution 2: The drive motor is fixedly connected to the processing table via a mounting plate.

[0011] Preferred technical solution 3: The screws at both ends of the drive screw have opposite directions, and the drive screw cooperates with the drive sleeve.

[0012] This solution enables the two drive sleeves to move simultaneously when the drive screw drives them to move.

[0013] Preferred technical solution four: The longitudinal section of the drive screw sleeve is rectangular, the top side of the drive screw sleeve is in contact with the inner wall of the drive chamber, and the bottom side of the drive screw sleeve is in contact with the top surface of the processing table.

[0014] This solution enables the drive screw sleeve to move on the drive screw rod, while the two sides of the drive screw sleeve are limited and do not rotate with the drive screw rod.

[0015] Preferred technical solution five: The inner side of the gear clamp is arc-shaped, and an anti-slip pad is provided on the inner side of the gear clamp.

[0016] This design allows the gear clamp to better grip and hold the gear body against the outer side.

[0017] Compared with the prior art, the present invention provides a gear keyway machining device, which has the following advantages:

[0018] (1) This utility model is provided with a keyway processing component and a gear clamping component on the processing table. The two gear clamping plates in the gear clamping component can clamp and fix gear bodies of different sizes placed between the two gear clamping plates under the drive of the drive screw to the drive sleeve. Before keyway processing, the broach in the keyway processing component is located on the bottom side of the inner ring wall of the gear body. The broach is driven by the servo motor to the lifting screw, and the lifting screw drives the broach to move upward by pulling the connecting plate, thereby accurately processing the keyway on the inner ring wall of the gear body. This equipment can effectively adapt to the processing of keyways of small factories and small batches of gears, complete the accurate processing of keyways, improve the processing efficiency of keyways, and greatly save production costs. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 For the present utility model Figure 1 Schematic diagram of the keyway machining assembly;

[0021] Figure 3 For the present utility model Figure 1 Schematic diagram of the middle gear clamping assembly;

[0022] Figure 4 For the present utility model Figure 1 A schematic diagram of the structure of the gear body.

[0023] In the diagram: 1. Machining table; 2. Keyway machining assembly; 3. Gear clamping assembly; 4. Gear body; 5. Keyway to be machined;

[0024] 201. Mounting bracket; 202. Machining through hole; 203. Lifting screw; 204. Servo motor; 205. Pulling connecting plate; 206. Mounting base; 207. Lifting limit rod; 208. Pulling tool;

[0025] 301. Drive chamber; 302. Drive screw; 303. Drive motor; 304. Drive sleeve; 305. Push connecting rod; 306. Gear clamp; 307. Support plate. Detailed Implementation

[0026] Please see Figure 1-4 ,

[0027] Example 1: A gear keyway machining device includes a machining table 1, a keyway machining component 2 is provided on the machining table 1, a gear clamping component 3 is provided at the bottom of the keyway machining component 2, a gear body 4 is provided on the gear clamping component 3, and a keyway 5 to be machined is opened in the middle of the gear body 4.

[0028] The keyway machining assembly 2 includes a mounting bracket 201 fixed on a machining table 1. A machining through hole 202 is provided in the middle of the machining table 1. A lifting screw 203 is vertically rotatably mounted on the mounting bracket 201. A servo motor 204 is mounted on the top of the mounting bracket 201. The drive shaft of the servo motor 204 is fixedly connected to the top of the lifting screw 203. A pull connecting plate 205 is provided on the bottom side of the lifting screw 203. The lifting screw 203 is threaded through the pull connecting plate 205. A mounting base 206 is connected to the end of the pull connecting plate 205. Lifting limit rods 207 are symmetrically inserted through both sides of the mounting base 206. The top of the lifting limit rods 207 is fixedly connected to the mounting bracket 201. A broach 208 is mounted on the bottom of the mounting base 206.

[0029] The gear clamping assembly 3 includes a drive chamber 301 fixed to the top side of the processing table 1. A drive screw 302 is rotatably disposed inside the drive chamber 301. A drive motor 303 is disposed at the end of the drive chamber 301. The drive shaft of the drive motor 303 is fixedly connected to the end of the drive screw 302. Two drive sleeves 304 are symmetrically sleeved at both ends of the drive screw 302. A push connecting rod 305 is fixed to the side of each drive sleeve 304. A gear clamping plate 306 is fixed to the end of the push connecting rod 305. A support plate 307 is disposed at the bottom end of the inner side wall of the gear clamping plate 306. The gear body 4 is disposed between the two gear clamping plates 306.

[0030] The drive motor 303 is fixedly connected to the processing table 1 via a mounting plate.

[0031] Example 2: The difference between this example and Example 1 is that the screws at both ends of the drive screw 302 are in opposite directions, and the drive screw 302 cooperates with the drive sleeve 304.

[0032] This allows the two drive sleeves 304 to move simultaneously when the drive screw 302 drives them to move.

[0033] Example 3: The difference between this example and Example 1 is that the longitudinal section of the drive screw sleeve 304 is rectangular, the top side of the drive screw sleeve 304 is in contact with the inner wall of the drive chamber 301, and the bottom side of the drive screw sleeve 304 is in contact with the top surface of the processing table 1.

[0034] When the drive screw 302 drives the drive sleeve 304 to move on it, the two sides of the drive sleeve 304 are limited and will not rotate with the drive screw 302.

[0035] Example 4: The difference between this example and Example 1 is that the inner side of the gear clamp 306 is arc-shaped and an anti-slip pad is provided on the inner side of the gear clamp 306.

[0036] This allows the gear clamping plate 306 to better clamp and hold the gear body 4 against the outside.

[0037] In this embodiment, since most existing manual keyway machining has low precision and the fixtures used are difficult to adapt to gears of different sizes, although the overall production cost is reduced, the machining precision and efficiency are greatly reduced, resulting in significant usage defects.

[0038] In summary, in practical implementation, when the user needs to produce a small batch of gear bodies 4, the user first places the gear body 4 between the two gear clamping plates 306 in the gear clamping assembly 3. The bottom side of the gear clamping plate 306 is provided with a support plate 307, which makes the placement of the gear body 4 more stable. The user starts the drive motor 303 by connecting the power, and the drive motor 303 drives the drive screw 302 to rotate. The two drive screw sleeves 304 sleeved on the drive screw 302 move closer to each other, thereby pushing the connecting rod 305 to push the two gear clamping plates 306 to clamp the sides of the gear body 4, ensuring that the gear body 4 is clamped and fixed between the two gear clamping plates 306.

[0039] Next, the user can start the servo motor 204 in the keyway processing assembly 2. The servo motor 204 drives the lifting screw 203 to rotate. The bottom thread of the lifting screw 203 passes through the connecting plate 205, which in turn drives the connecting plate 205 to move upward. At this time, the upper end of the broach 208 installed at the bottom of the mounting base 206 is in contact with the inner ring wall of the gear body 4. Due to the series of gradually increasing cutting teeth set in the broach 208, the metal material on the inner ring wall of the gear body 4 can be gradually removed layer by layer during the upward movement of the broach 208, and finally the keyway shape that meets the design requirements is formed, thus completing the processing of the keyway 5 to be processed on the gear body 4.

[0040] Furthermore, since the mounting base 206 is limited by the lifting limit rod 207 on both sides, the mounting base 206 drives the broach 208 to rise more stably, ensuring the machining accuracy of the keyway, improving its keyway machining efficiency, effectively reducing its production cost, and being able to stably clamp gear bodies 4 of different sizes.

Claims

1. A gear keyway machining apparatus, comprising a machining table (1), characterized in that: The processing table (1) is provided with a keyway processing component (2), and a gear clamping component (3) is provided at the bottom of the keyway processing component (2). A gear body (4) is provided on the gear clamping component (3), and a keyway (5) to be processed is opened in the middle of the gear body (4). The keyway machining assembly (2) includes a mounting bracket (201) fixed on the machining table (1). A machining through hole (202) is provided in the middle of the machining table (1). A lifting screw (203) is vertically rotatably mounted on the mounting bracket (201). A servo motor (204) is mounted on the top of the mounting bracket (201). The drive shaft of the servo motor (204) is fixedly connected to the top of the lifting screw (203). A pull connecting plate (205) is provided on the bottom side of the lifting screw (203). The lifting screw (203) is threaded through the pull connecting plate (205). A mounting base (206) is connected to the end of the pull connecting plate (205). Lifting limit rods (207) are symmetrically inserted through both sides of the mounting base (206). The top of the lifting limit rod (207) is fixedly connected to the mounting bracket (201). A broach (208) is mounted on the bottom of the mounting base (206). The gear clamping assembly (3) includes a drive chamber (301) fixed to the top side of the processing table (1), a drive screw (302) is rotatably disposed inside the drive chamber (301), and a drive motor (303) is disposed at the end of the drive chamber (301), with the drive shaft of the drive motor (303) fixedly connected to the end of the drive screw (302).

2. The gear keyway machining device according to claim 1, characterized in that: Two drive screw sleeves (304) are symmetrically sleeved at both ends of the drive screw (302). A push connecting rod (305) is fixed on the side of each drive screw sleeve (304). A gear clamp (306) is fixed at the end of the push connecting rod (305). A support plate (307) is provided at the bottom of the inner side wall of the gear clamp (306). The gear body (4) is disposed between the two gear clamps (306).

3. The gear keyway machining device according to claim 2, characterized in that: The drive motor (303) is fixedly connected to the processing table (1) via a mounting plate.

4. The gear keyway machining device according to claim 3, characterized in that: The screws at both ends of the drive screw (302) are in opposite directions, and the drive screw (302) cooperates with the drive sleeve (304).

5. The gear keyway machining device according to claim 4, characterized in that: The longitudinal section of the drive sleeve (304) is rectangular. The top side of the drive sleeve (304) is in contact with the inner wall of the drive chamber (301), and the bottom side of the drive sleeve (304) is in contact with the top surface of the processing table (1).

6. The gear keyway machining device according to claim 5, characterized in that: The inner side of the gear clamp (306) is arc-shaped, and the inner side of the gear clamp (306) is provided with an anti-slip pad.

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