Gear key groove machining device

Abstract

The utility model discloses a gear key groove machining device which comprises a main body mechanism and a machining mechanism. The main body mechanism comprises a base, supporting legs fixed to the bottom end of the base in an annular array mode, a containing disc rotationally embedded to the top end of the base, a gear ring fixedly connected to the outer side of the containing disc in a sleeving mode, a driving piece installed on one side of the base and engaged with the gear ring and stand columns symmetrically fixed to the two sides of the base, and the base is annular and used for installing other assemblies. A groove is formed in the base, the containing disc is rotationally embedded in the groove, rotation of the containing disc is facilitated, meanwhile, a lower annular groove is formed in the inner bottom wall of the groove, an upper annular groove is formed in the bottom end of the containing disc, and a plurality of balls are arranged between the lower annular groove and the upper annular groove in an array mode, so that the friction force between the containing disc and the base during rotation can be effectively reduced; the gear key groove machining device has the advantages of being high in fixing speed and high in practicability.

Description

Technical Field

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

[0002] A gear is a mechanical component with gears on the wheel rim that continuously mesh to transmit motion and power. The application of gears in transmission has appeared very early. At the end of the 19th century, the principle of gear cutting and the special machine tools and tools that use this principle to cut gears appeared one after another. With the development of production, the smoothness of gear operation has received attention. During the processing of gears, in order to improve the assembly stability of the gears, it is usually necessary to open a keyway on the inside of the gear.

[0003] The existing gear keyway processing device has the following main disadvantages during use: the gear needs to be fixed during keyway processing, the existing fixing structure is complex and inefficient, and when the gear needs to be processed with multiple keyways, the gear needs to be manually rotated, which is troublesome, time-consuming and labor-intensive. Therefore, there is room for improvement. Utility Model Content

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technology.

[0005] To this end, the technical solution adopted by the utility model is: a gear keyway processing device, including: a main mechanism and a processing mechanism, the main mechanism includes a base, legs fixed in a ring array at the bottom end of the base, a placement plate rotatably engaged with the top end of the base, a gear ring fixedly sleeved on the outside of the placement plate, a driving member installed on one side of the base and meshing with the gear ring, and columns symmetrically fixed on both sides of the base.

[0006] The processing mechanism includes a bracket with two sides movably sleeved on the column, a first electric telescopic rod symmetrically fixed on both sides of the base and fixedly connected to the bracket, a cone fixed at the bottom end of the bracket, a telescopic assembly installed at the top end of the bracket, and a broach with one end fixed on the telescopic assembly and the other end extending through the cone.

[0007] In a preferred example, the utility model can be further configured as follows: a groove is provided on the base, and the placement plate is rotatably engaged in the groove.

[0008] In a preferred example, the utility model can be further configured as follows: a lower annular groove is opened on the inner bottom wall of the groove, an upper annular groove is opened at the bottom end of the placement plate, and a plurality of balls are arranged in an array between the lower annular groove and the upper annular groove.

[0009] In a preferred example, the utility model can be further configured as follows: the driving member includes a motor fixed on the base and a transmission gear installed on the motor shaft, and the transmission gear is meshed with the gear ring.

[0010] In a preferred example, the utility model can be further configured as follows: a through hole is opened on the conical member, and the broach passes through the through hole.

[0011] In a preferred example, the utility model can be further configured as follows: the telescopic assembly includes a second electric telescopic rod symmetrically fixed to the top of the bracket and a T-shaped frame fixed to the end of the second electric telescopic rod, and the bottom end of the T-shaped frame is fixedly connected to the top of the broach.

[0012] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0013] 1. In the utility model, a placement plate is rotatably arranged on the base, and columns are fixed on both sides of the base, and brackets are movably sleeved on the columns. First electric telescopic rods are installed on both sides of the base and are fixedly connected to the brackets. The up and down movement of the bracket is controlled by the first electric telescopic rod. At the same time, a conical member is fixed at the bottom end of the bracket, and a telescopic assembly and a broach passing through the conical member are installed at the top end of the bracket. Through the above arrangement, when in use, it is only necessary to place the gear on the placement plate. At this time, the first electric telescopic rod drives the bracket to move downward, and the downward movement of the bracket drives the conical member to move downward. The conical member moves downward and passes through the circular hole in the middle of the gear. As the conical member moves, the outer side surface of the conical member is tightly attached to the inner wall of the gear hole, so that the gear can be fixed. The structure is simple, the fixing speed is fast, and the gear can be centered to ensure that the gear is in the middle of the placement plate, thereby increasing practical performance.

[0014] 2. In the utility model, a gear ring is arranged on the outer side of the placement disk, and a driving member is installed on the base. The driving member is engaged with the gear. The gear ring is driven to rotate by the driving member. The rotation of the gear ring drives the placement disk to rotate. The rotation of the placement disk drives the gear to rotate, which makes it convenient for the broach to process multiple keyways in the gear hole, further increasing the convenience of gear processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of part of the main mechanism of the utility model;

[0017] Figure 3 It is a schematic diagram of another viewing angle of a part of the main structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the processing mechanism of the utility model.

[0019] Reference numerals:

[0020] 100, main body; 110, base; 111, groove; 112, lower annular groove; 113, ball bearing; 120, leg; 130, placement plate; 131, upper annular groove; 140, gear ring; 150, driving member; 151, motor; 152, transmission gear; 160, column;

[0021] 200, processing mechanism; 210, bracket; 220, first electric telescopic rod; 230, tapered member; 231, through hole; 240, telescopic assembly; 241, second electric telescopic rod; 242, T-shaped frame; 250, broach. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0023] Some embodiments of the present invention are described below in conjunction with the accompanying drawings. Embodiment 1

[0024] Combination Figure 1-4 As shown, this embodiment provides a gear keyway processing device, including: a main mechanism 100 and a processing mechanism 200.

[0025] Among them, the main mechanism 100 includes a base 110, legs 120 fixed at the bottom of the base 110 in a circular array, a placement plate 130 rotatably embedded in the top of the base 110, a gear ring 140 fixedly sleeved on the outside of the placement plate 130, a driving member 150 installed on one side of the base 110 and meshing with the gear ring 140, and columns 160 symmetrically fixed on both sides of the base 110.

[0026] The base 110 is annular and is used to install other components. A groove 111 is formed on the base 110. The placement plate 130 is rotatably engaged in the groove 111 to facilitate the rotation of the placement plate 130. At the same time, a lower annular groove 112 is formed on the inner bottom wall of the groove 111, and an upper annular groove 131 is formed at the bottom end of the placement plate 130. A plurality of balls 113 are arranged in an array between the lower annular groove 112 and the upper annular groove 131, which can effectively reduce the friction between the placement plate 130 and the base 110 when the placement plate 130 rotates.

[0027] The placement plate 130 is annular and is used to place the gears that need to be processed. The gear ring 140 is sleeved on the outside of the placement plate 130. The driving member 150 includes a motor 151 fixed on the base 110 and a transmission gear 152 installed on the shaft of the motor 151. The transmission gear 152 and the gear ring 140 are meshed with each other, so that when the motor 151 rotates, it drives the transmission gear 152 to rotate. The transmission gear 152 rotates and drives the gear ring 140 to rotate. The gear ring 140 rotates and drives the placement plate 130 to rotate. The placement plate 130 rotates and drives the processed gears to rotate, which makes it convenient to process multiple keyways in the gear hole.

[0028] The column 160 is the same as the mounting processing mechanism 200 .

[0029] The processing mechanism 200 includes a bracket 210 movably sleeved on the column 160 on both sides, a first electric telescopic rod 220 symmetrically fixed on both sides of the base 110 and fixedly connected to the bracket 210, a cone 230 fixed at the bottom end of the bracket 210, a telescopic assembly 240 installed at the top end of the bracket 210, and a broach 250 with one end fixed on the telescopic assembly 240 and the other end extending through the cone 230.

[0030] Both ends of the bracket 210 are slidably sleeved on the column 160 to ensure the stability of the bracket 210 when it moves up and down. The first electric telescopic rod 220 is fixedly connected to the bracket 210 and is used to control the bracket 210 to move up and down, thereby driving the cone 230 to move and fix the gear to ensure the stability of the gear during processing.

[0031] The conical member 230 is fixed at the bottom end of the bracket 210. When the bracket 210 moves downward and drives the cone to move downward through the gear hole, as the conical member 230 moves downward, the surface of the conical member 230 is pressed against the inner wall of the gear hole, fixing the gear at the top of the placement plate 130 and ensuring that the gear is in the middle of the placement plate 130. The fixing speed is fast and the gear is centered. A through hole 231 is opened on the conical member 230 for the broach 250 to pass through.

[0032] The telescopic assembly 240 is used to install the broach 250 and drive the broach 250 to move. The telescopic assembly 240 includes a second electric telescopic rod 241 symmetrically fixed to the top of the bracket 210 and a T-shaped frame 242 fixed to the end of the second electric telescopic rod 241. The bottom end of the T-shaped frame 242 is fixedly connected to the top of the broach 250, so that when the second electric telescopic rod 241 is extended and retracted, the broach 250 can be synchronously driven to move through the T-shaped frame 242, and the broach 250 moves to pull out a key groove on the inner wall of the gear hole.

[0033] The working principle and use process of the utility model are as follows: when in use, the gear is placed on the placement plate 130, at which time the first electric telescopic rod 220 is started, driving the bracket 210 to move downward, and the downward movement of the bracket 210 drives the cone to move downward through the gear hole. As the cone 230 moves downward, the surface of the cone 230 is tightly attached to the inner wall of the gear hole, fixing the gear on the top of the placement plate 130 and ensuring that the gear is in the middle of the placement plate 130. Then the second electric telescopic rod 241 is started, driving the broach 250 to move downward through the T-shaped frame 242, and the broach During the downward movement, 250 pulls out a keyway on the inner wall of the gear hole, and then the second electric telescopic rod 241 drives the broach 250 to reset, and the first electric telescopic rod 220 drives the bracket 210 to move upward to release the fixation of the gear. At this time, the motor 151 starts, driving the transmission gear 152 to rotate, and the transmission gear 152 rotates to drive the gear ring 140 to rotate, and the gear ring 140 rotates to drive the placement plate 130 to rotate, and the placement plate 130 rotates to drive the processing gear to rotate. Then, the above process is repeated to process multiple keyways in the gear hole.

[0034] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A gear keyway processing device, comprising: A main mechanism (100) and a processing mechanism (200), characterized in that the main mechanism (100) comprises a base (110), legs (120) fixed to the bottom of the base (110) in an annular array, a placement plate (130) rotatably engaged with the top of the base (110), a toothed ring (140) fixedly sleeved on the outside of the placement plate (130), a driving member (150) mounted on one side of the base (110) and meshing with the toothed ring (140), and columns (160) symmetrically fixed to both sides of the base (110); The processing mechanism (200) comprises a bracket (210) with two sides movably sleeved on a column (160), a first electric telescopic rod (220) symmetrically fixed on two sides of the base (110) and fixedly connected to the bracket (210), a cone (230) fixed to the bottom end of the bracket (210), a telescopic assembly (240) mounted on the top end of the bracket (210), and a broach (250) with one end fixed to the telescopic assembly (240) and the other end extending through the cone (230).

2. A gear keyway machining device according to claim 1, characterized in that: The base (110) is provided with a groove (111), and the placement plate (130) is rotatably engaged in the groove (111).

3. A gear keyway machining device according to claim 2, characterized in that: A lower annular groove (112) is formed on the inner bottom wall of the groove (111), and an upper annular groove (131) is formed on the bottom end of the placement plate (130). A plurality of balls (113) are arranged in an array between the lower annular groove (112) and the upper annular groove (131).

4. A gear keyway machining device according to claim 1, characterized in that: The driving member (150) comprises a motor (151) fixed on the base (110) and a transmission gear (152) mounted on the shaft of the motor (151); the transmission gear (152) and the gear ring (140) are meshed with each other.

5. The gear keyway machining device according to claim 1, characterized in that: The conical member (230) is provided with a through hole (231), and the broach (250) passes through the through hole (231).

6. A gear keyway machining device according to claim 5, characterized in that: The telescopic assembly (240) comprises a second electric telescopic rod (241) symmetrically fixed to the top end of the bracket (210) and a T-shaped frame (242) fixed to the end of the second electric telescopic rod (241), wherein the bottom end of the T-shaped frame (242) is fixedly connected to the top end of the broach (250).

Images