Gear positioning, drilling and slotting device

Abstract

The utility model discloses a gear positioning, drilling and slotting device, which relates to the technical field of gear processing and comprises an operating platform with an inclined groove on the surface, a limiting frame arranged at the bottom of the operating platform, a movable seat sleeved on the outer side of the limiting frame, a mounting groove arranged on the edge of the movable seat, and a limiting claw in pin joint with the inner side of the mounting groove. A penetrating hole is formed in the side, close to the limiting claw, of the operation platform, and the distance between the movable base and the operation platform is changed, so that the length, extending out of the penetrating hole, of the limiting claw is changed, and the state that the limiting claw penetrates through the penetrating hole is changed; at the moment, the inclined groove in the surface of the operating platform is not shielded, the gear can be directly placed, the inclined groove is limited by the penetrating hole again to recover the vertical state during retracting and makes contact with the gear and extrudes the gear in the downward moving process, the gear moves to the circle center position of the limiting claw under the action of pressure, and therefore positioning is completed, and the whole process is simple and rapid; and operation of operators is not needed.

Description

TECHNICAL FIELD

[0001] The utility model relates to gear processing technical field especially relates to a gear positioning drilling and grooving device. BACKGROUND

[0002] Gear in the processing process can according to actual use to the same specification gear of production and refine processing, to adapt to different use demand, these processing usually include reaming, drilling and keyway opening etc.

[0003] And gear needs to be kept fixed in the processing process, to avoid in the processing process produces larger error occurs, and because gear is a kind of relatively close component, in the processing process needs to ensure that the processing position of gear does not deviate, the fixing mode of present mostly is to use chuck and shaft core fixed, the two kinds of fixing mode is difficult to cope with the quick operation required when mass gear processing, each time fixed needs to recalibrate fixed position, operation is more cumbersome. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of gear positioning drilling and grooving device, solve the fixing device used when gear processing difficult to cope with the quick operation required when mass gear processing, and if fixed repeatedly calibrating is easy to produce the positioning error of problem.

[0005] In order to solve the prior art problems, the technical scheme of the utility model is as follows: a kind of gear positioning drilling and grooving device, including the operation platform that surface is provided with inclined slot, the operation platform bottom is provided with limiting frame, limiting frame outer side is equipped with mobile seat, mobile seat edge is equipped with installation slot, limiting claw is connected in the inner side of installation slot by pin, the side close to mobile seat of limiting claw is provided with friction layer, mobile seat bottom is provided with threaded sleeve and is connected by threaded sleeve with external thread rod, the side close to limiting claw of operation platform is equipped with perforation.

[0006] Further, the limiting frame of the operation platform bottom is three, three limiting frames are circularly distributed, and the centripetal side surface of each limiting frame is provided with reinforcing rib, and the bottom is provided with anti-extraction shoulder, to ensure that the limiting frame has sufficient strength while avoiding the mobile seat from being pulled out outward.

[0007] Further, the mobile seat is circular plate structure as a whole, and the installation slot at the edge position is three, three installation slots are staggered with limiting frame through mobile seat position, and the width of each installation slot is greater than the diameter of limiting claw, to ensure that the installation slot has enough space to provide the rotation of limiting claw.

[0008] Furthermore, the limiting claw extends upward through the perforation of the operating platform, forming a trapezoidal rod-like structure that is larger at the top and smaller at the bottom. The side of the limiting claw away from the moving seat is inclined, so that the center of gravity of the limiting claw is close to the inclined side, ensuring that the limiting claw will naturally tilt after extending out of the perforation.

[0009] Furthermore, pressure blocks are provided on both sides of the top end of the limiting claw. The side of the pressure block near the moving seat is provided with a rounded chamfer. The pressure blocks help fix the position of the gear while increasing the weight of the end of the limiting claw and further changing the center of gravity of the limiting claw, ensuring that the limiting claw can tilt naturally.

[0010] Furthermore, the perforation is a rectangular inclined hole with the same inclination angle as the inclined groove of the operating platform, and the inner wall of the perforation is connected to the inner wall of the inclined groove, so that the limiting claw will not be excessively obstructed when tilting.

[0011] Furthermore, there are three perforations, which are arranged in a ring and staggered with the limiting frame.

[0012] Furthermore, the friction layer is made entirely of rubber material and has triangular raised textures on its surface. The friction layer separates and restricts the claw and gear, preventing damage to the gear.

[0013] Compared with the prior art, the advantages of this utility model are as follows:

[0014] 1. The gear is clamped by changing the expansion state of the three limiting claws as they move with the moving seat. During the clamping process, the three limiting claws make multiple contacts and push the gear to the required position, so that the positioning and clamping of the gear are carried out simultaneously. When placing the gear, the operator does not need to deliberately limit the initial position of the gear, but only needs to ensure that the limiting claws are aligned with the tooth groove.

[0015] 2. The center of each limiting claw is oriented away from the friction layer due to its own shape and the influence of the end pressure block. As the limiting claw extends out of the perforation, it will gradually tilt under its own weight. The tilted limiting claw will not block the tilting groove on the operating platform surface. At the same time, the pressure block limits the maximum downward movement distance of the limiting claw, avoiding excessive downward movement of the limiting claw and thus excessive compression of the gear. It can also contact the gear in the vertical direction and provide a downward pressure on the gear, improving the position fixation effect of the gear. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a cross-sectional view of the operating platform of this utility model.

[0018] Figure 3This is a schematic diagram of the movable seat of this utility model.

[0019] Figure 4 This is a schematic diagram of the limiting claw of this utility model.

[0020] Figure 5 This is a cross-sectional view of the restricted claw of this utility model in the deployed state.

[0021] Reference numerals: 1. Operating platform; 2. Limiting frame; 3. Moving seat; 4. Mounting slot; 5. Limiting claw; 6. Friction layer; 7. Threaded sleeve; 8. Perforation; 51. Pressure block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] like Figures 1-5 As shown, a gear positioning drilling and grooving device includes an operating platform 1 with inclined grooves on its surface, a limiting frame 2 at the bottom of the operating platform 1, and a movable seat 3 sleeved on the outside of the limiting frame 2. There are three limiting frames 2 at the bottom of the operating platform 1, which are distributed in a circle. Each limiting frame 2 has a reinforcing rib on its centripetal side surface and an anti-slip shoulder on its bottom to ensure that the limiting frame 2 has sufficient strength while preventing the movable seat 3 from coming off outward. The movable seat 3 has an installation groove 4 on its edge, and a limiting claw 5 is pinned to the inside of the installation groove 4. The movable seat 3 is a circular plate structure with three installation grooves 4 at its edge. The three installation grooves 4 and the limiting frame 2 are staggered at the position through the movable seat 3, and the width of each installation groove 4 is greater than the diameter of the limiting claw 5 to ensure that the installation groove 4 has enough space for the limiting claw 5 to rotate.

[0024] The limiting claw 5 extends upward through the operating platform 1 via the through hole 8, and has a trapezoidal rod-like structure that is larger at the top and smaller at the bottom. The side of the limiting claw 5 away from the moving seat 3 is inclined, so that the center of gravity of the limiting claw 5 is close to the inclined side, ensuring that the limiting claw 5 will tilt naturally after extending out of the through hole 8. Pressure blocks 51 are provided on both sides of the top end of the limiting claw 5. The side of the pressure block 51 close to the moving seat 3 is provided with a rounded chamfer. The pressure block 51 helps to fix the position of the gear while increasing the weight of the end of the limiting claw 5 and further changing the center of gravity of the limiting claw 5, ensuring that the limiting claw 5 can tilt naturally.

[0025] A friction layer 6 is provided on the side of the limiting claw 5 near the moving base 3. The friction layer 6 is made entirely of rubber material and has triangular raised textures on its surface. The friction layer 6 separates the limiting claw 5 from the gear to prevent damage to the gear. A threaded sleeve 7 is provided at the bottom of the moving base 3 and is connected to an external threaded rod through the threaded sleeve 7. A through hole 8 is provided on the side of the operating platform 1 near the limiting claw 5. The through hole 8 is a rectangular inclined hole. The inclination angle of the through hole 8 is the same as the inclination angle of the inclined groove of the operating platform 1, and the inner wall of the through hole 8 is connected to the inner wall of the inclined groove so that the limiting claw 5 will not be obstructed too much when it is tilted. There are three through holes 8 in total. The three through holes 8 are distributed in a ring and are staggered with the limiting frame 2.

[0026] Working principle description: When using this utility model, first ensure that the external threaded rod pushes the moving seat 3 close to the operating platform 1 through the threaded sleeve 7. At this time, the limiting claw 5 fully extends out of the through hole 8 and tilts outward under the action of the tilted center of gravity. The operator can place the gear to be processed in the inclined groove on the surface of the operating platform 1. No deliberate positioning is required; it is only necessary to ensure that the tooth groove of the gear is aligned with the limiting claw 5. Then, the operator rotates the external threaded rod to make the moving seat 3 move downward under the action of the threaded sleeve 7. During the movement, the limiting claw 5 on the edge of the moving seat 3 moves along with it and is simultaneously restricted by the through hole 8. Gradually returning to a vertical state, as the limiting claw 5 stands up, the diameter of the claw located on the side of the perforation 8 gradually increases during the movement process and comes into contact with the gear surface. When in contact, the three limiting claws 5 simultaneously push the gear for positioning until the pressure block 51 on the surface of the limiting claw 5 contacts and presses the gear. At this time, the gear is restricted in the horizontal direction by the three limiting claws 5 that enter the tooth groove, and in the vertical direction by the pressure block 51. The position will not change during the processing, and the positioning is completed during the fixing process without the need for operator intervention. After processing, it is only necessary to raise the moving seat 3 to make the limiting claw 5 leave the gear and be in an inclined state.

[0027] 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 gear positioning drilling and grooving device, comprising an operating platform (1) with an inclined groove on its surface, characterized in that: The operating platform (1) is provided with a limiting frame (2) at the bottom. A movable seat (3) is sleeved on the outside of the limiting frame (2). An installation groove (4) is opened on the edge of the movable seat (3). A limiting claw (5) is pinned to the inside of the installation groove (4). A friction layer (6) is provided on the side of the limiting claw (5) near the movable seat (3). A threaded sleeve (7) is provided at the bottom of the movable seat (3) and is connected to an external threaded rod through the threaded sleeve (7). A through hole (8) is opened on the side of the operating platform (1) near the limiting claw (5).

2. The gear positioning drilling and grooving device according to claim 1, characterized in that: The operating platform (1) has three limiting frames (2) at the bottom. The three limiting frames (2) are distributed in a circle, and each limiting frame (2) has a reinforcing rib on its centripetal side surface and a shoulder-protecting device at the bottom.

3. The gear positioning drilling and grooving device according to claim 2, characterized in that: The movable seat (3) is a circular plate structure with three mounting slots (4) at the edge. The three mounting slots (4) and the limiting frame (2) are staggered through the movable seat (3), and the width of each mounting slot (4) is greater than the diameter of the limiting claw (5).

4. The gear positioning drilling and grooving device according to claim 3, characterized in that: The limiting claw (5) extends upward through the operating platform (1) through the perforation (8), and has a trapezoidal rod-shaped structure that is larger at the top and smaller at the bottom. The side of the limiting claw (5) away from the moving seat (3) is inclined.

5. The gear positioning drilling and grooving device according to claim 4, characterized in that: The limiting claw (5) has pressure blocks (51) on both sides of its top end, and the side of the pressure block (51) near the moving seat (3) has a rounded chamfer.

6. The gear positioning drilling and grooving device according to claim 1, characterized in that: The perforation (8) is a rectangular inclined hole. The inclination angle of the perforation (8) is the same as the inclination angle of the inclined groove of the operating platform (1), and the inner wall of the perforation (8) is connected to the inner wall of the inclined groove.

7. The gear positioning drilling and grooving device according to claim 2, characterized in that: There are three perforations (8), which are arranged in a ring and staggered with the limiting frame (2).

8. The gear positioning drilling and grooving device according to claim 1, characterized in that: The friction layer (6) is made entirely of rubber material and has triangular raised textures on its surface.

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