Planet carrier drilling clamp convenient to adjust

Abstract

The utility model discloses a planet carrier drilling fixture convenient to adjust, which relates to the technical field of drilling fixtures and comprises a bottom plate, a circular truncated cone is fixedly arranged on the bottom plate, a first rotary table is rotatably arranged on the circular truncated cone, a second rotary table is rotatably arranged on the first rotary table, and a three-jaw chuck is fixedly arranged on the second rotary table. Three first positioning holes are evenly formed in the side wall face of the circular truncated cone, an opening is formed in one side wall of the rotary table, a positioning block is detachably connected into the opening, and three second positioning holes are formed in the side wall of the positioning block; the rotary table I is matched with the three positioning holes I, so that the three assembling holes a can be respectively aligned with a drill bit, and the positioning of the three assembling holes a is completed; a second rotary table is matched with a second positioning hole in a positioning block so that the second rotary table can be finely adjusted, the first rotary table is rotated again so that the first three auxiliary holes b1 or the second three auxiliary holes b2 can be aligned with the drill bit, and positioning of the first three auxiliary holes b1 or the second three auxiliary holes b2 is completed.

Description

Technical Field

[0001] This utility model relates to the field of drilling fixture technology, specifically to an easily adjustable planetary carrier drilling fixture. Background Technology

[0002] The planet carrier is one of the main components of the planetary gear transmission device. The planetary gear shafts or bearings are mounted on the planet carrier. When the planetary gear is used as a basic component, it is the part that bears the largest external torque in the mechanism. The planet carrier needs to be drilled during processing.

[0003] Figure 1 The image shows a top view of the new type of frame, which includes three assembly holes a. On both sides of the three assembly holes, there are also auxiliary holes b1 and b2. Existing devices require multiple displacements of the drilling platform in the X and Y directions during drilling to align the drilling position with the drill bit, which is inefficient. Therefore, providing an easily adjustable planetary carrier drilling fixture is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an easily adjustable planetary carrier drilling fixture, which solves the technical problem of low drilling efficiency when drilling planetary carriers with multiple holes using existing devices.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an easily adjustable planetary carrier drilling fixture, comprising a base plate, a frustum fixedly mounted on the base plate, a first turntable rotatably mounted on the frustum, a second turntable rotatably mounted on the first turntable, a three-jaw chuck fixedly mounted on the second turntable, three positioning holes I evenly distributed on the side wall of the frustum, an opening on one side wall of the turntable, a positioning block detachably connected to the opening, three positioning holes II on the side wall of the positioning block, mounting blocks fixedly mounted on the side walls of both the first and second turntables, each mounting block slidably connected to a positioning pin, the first turntable being positioned relative to the frustum by the positioning pin inserted into the positioning hole I, and the second turntable being positioned relative to the first turntable by the positioning pin inserted into the positioning hole II.

[0006] Preferably, a fixed handle is fixedly provided on one side of the mounting block, and a lever is hinged below the fixed handle. The lever is L-shaped, and a notch is provided at one end of the short side of the lever. A pin is fixedly provided at one end of the outer side of the positioning pin, and the pin is placed in the notch.

[0007] Preferably, a spring is installed between the long side of the lever and the fixed handle.

[0008] Preferably, the positioning block is fixed inside the opening using screws.

[0009] Preferably, a central shaft is fixedly installed at the center of the upper part of the truncated cone, and both the first turntable and the second turntable are mounted on the central shaft using bearings.

[0010] Preferably, the upper and lower surfaces of the first turntable are in contact with the lower surface of the second turntable and the upper surface of the frustum, respectively.

[0011] Beneficial effects

[0012] This utility model provides an easily adjustable planetary carrier drilling fixture with the following advantages: By using a turntable with three positioning holes, the three assembly holes a can be aligned with the drill bit, thus completing the positioning of the three assembly holes a; by using a turntable with positioning holes two on the positioning block, the turntable can be finely adjusted, and by rotating the turntable again, the three auxiliary holes b1 or b2 can be aligned with the drill bit, thus completing the positioning of the three auxiliary holes b1 or b2; when different specifications of planetary carriers need to be processed, by changing the positioning block and selecting a positioning block with matching positioning holes two, drilling positioning of planetary carriers of different specifications can be achieved. Attached Figure Description

[0013] Figure 1 This is a top view of the planetary carrier;

[0014] Figure 2 This is the front view of the present invention;

[0015] Figure 3 This is a top cross-sectional view of turntable one;

[0016] Figure 4 for Figure 2 A magnified view of part A in the image.

[0017] In the diagram: 1. Base plate; 2. Frustum; 3. Turntable 1; 4. Turntable 2; 5. Three-jaw chuck; 6. Positioning hole 1; 7. Positioning block; 8. Positioning hole 2; 9. Mounting block; 10. Positioning pin; 11. Fixed handle; 12. Lever; 13. Dial; 14. Pin; 15. Spring; 16. Screw; 17. Central shaft. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] Please see Figure 2-4This utility model provides a technical solution: an easily adjustable planetary carrier drilling chuck, including a base plate 1, which is used to connect to a drilling machine platform. A frustum 2 is fixedly mounted on the base plate 1, a first turntable 3 is rotatably mounted on the frustum 2, and a second turntable 4 is rotatably mounted on the first turntable 3. A three-jaw chuck 5 for clamping the planetary carrier is fixedly mounted on the second turntable 4. Three positioning holes 6 are evenly distributed on the side wall of the frustum 2. An opening is opened on the side wall of the first turntable 3, and a positioning block 7 is detachably connected to the opening. Three positioning holes 8 are opened on the side wall of the positioning block 7. Mounting blocks 9 are fixedly mounted on the side walls of both the first turntable 3 and the second turntable 4. Positioning pins 10 are slidably connected to the mounting blocks 9. The first turntable 3 is positioned to the frustum 2 by the positioning pins 10 inserted into the positioning holes 6, and the second turntable 4 is positioned to the first turntable 3 by the positioning pins 10 inserted into the positioning holes 8. A fixing handle 11 is fixedly mounted on one side of the mounting block 9, and a hinge is connected below the fixing handle 11. L-shaped lever 12 has a notch 13 at one short end. A pin 14 is fixed to the outer end of the positioning pin 10, and the pin 14 is placed inside the notch 13. A spring 15 is installed between the long end of the lever 12 and the fixed handle 11. When the long end of the lever 12 is pulled towards the fixed handle 11, the notch 13 moves outward. The pin 14 is moved by the notch 13, which causes the positioning pin 10 to slide outward. The spring 15 can control the lever 12. A thrust is applied to the long side of 12, allowing the positioning pin 10 to slide inward; the positioning block 7 is fixed in the opening with screws 16, and the positioning block 7 can be easily replaced after the screws are removed; a central shaft 17 is fixedly installed at the center of the upper part of the frustum 2, and both the turntable 3 and the turntable 4 are mounted on the central shaft 17 using bearings to ensure the coaxiality between the frustum 2, the turntable 3, and the turntable 4; the upper and lower surfaces of the turntable 3 are in contact with the lower surface of the turntable 4 and the upper surface of the frustum 2, respectively.

[0020] The working principle and usage process of this utility model are as follows: In use, the fixture is fixed on the drilling platform, and the planetary carrier is clamped on the three-jaw chuck 5. By controlling the movement of the drilling platform, the drilling position of one of the assembly holes a is aligned with the drill bit before drilling. After drilling is completed, the lever 12 on one side of the rotary table 3 is moved to pull the positioning pin 10 out of the positioning hole 6. At this time, the rotary table 3 can rotate, and the rotary table 4 and the three-jaw chuck 5 rotate simultaneously with the rotary table 3. When the positioning pin 10 is inserted into the next positioning hole 6, the drill bit can be aligned with the drilling position of the next assembly hole a. By rotating the rotary table 3, the three assembly holes a can be aligned with the drill bit respectively, completing the positioning of the three assembly holes a. The lever 12 on one side of the rotary table 4 is moved to pull the positioning pin 10 out of the positioning hole 8. By rotating the rotary table 4... The positioning pin 10 is inserted into the positioning hole 8 on one side of the positioning block 7 by rotating the turntable 4. At this time, the secondary hole 1b1 can be aligned with the drill bit. By rotating the turntable 3 again, the three secondary holes 1b1 can be aligned with the drill bit respectively, thus completing the positioning of the three secondary holes 1b1. After the three secondary holes 1b1 are drilled, the positioning pin 10 is inserted into the positioning hole 8 on the other side of the positioning block 7. At this time, the secondary hole 2b2 can be aligned with the drill bit. By rotating the turntable 3 again, the three secondary holes 2b2 can be aligned with the drill bit respectively, thus completing the positioning of the three secondary holes 2b2. When it is necessary to process planetary carriers of different specifications, the distance between the secondary holes 1b1, the secondary holes 2b2 and the assembly hole a changes. At this time, by replacing the positioning block 7 and selecting the positioning block 7 with the matching positioning hole 8, the drilling positioning of planetary carriers of different specifications can be achieved.

[0021] 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. An easily adjustable planetary carrier drilling jig, characterized in that, Includes a base plate (1), on which a frustum (2) is fixedly mounted, on which a turntable (3) is rotatably mounted, and on which a turntable (4) is rotatably mounted, and on which a three-jaw chuck (5) is fixedly mounted, and on which three positioning holes (6) are evenly opened on the side wall of the frustum (2), and on which an opening is opened on the side wall of the turntable (3), a positioning block (7) is detachably connected, and the positioning block (7) is detachably connected to the opening. 7) Three positioning holes (8) are provided on the side wall. Mounting blocks (9) are fixedly provided on the side walls of turntable 1 (3) and turntable 2 (4). Positioning pins (10) are slidably connected in the mounting blocks (9). Turntable 1 (3) and the frustum (2) are positioned by the positioning pins (10) inserted into the positioning holes (6). Turntable 2 (4) and the turntable 1 (3) are positioned by the positioning pins (10) inserted into the positioning holes (8).

2. The planetary carrier drilling fixture that is easy to adjust according to claim 1, characterized in that, A fixed handle (11) is fixedly provided on one side of the mounting block (9). A lever (12) is hinged below the fixed handle (11). The lever (12) is L-shaped. A dial (13) is provided at one end of the short side of the lever (12). A pin (14) is fixedly provided at one end of the outer side of the positioning pin (10). The pin (14) is placed in the dial (13).

3. The planetary carrier drilling fixture that is easy to adjust according to claim 2, characterized in that, A spring (15) is installed between the long side end of the lever (12) and the fixed handle (11).

4. The planetary carrier drilling fixture that is easy to adjust according to claim 1, characterized in that, The positioning block (7) is fixed inside the opening using screws (16).

5. The planetary carrier drilling fixture that is easy to adjust according to claim 1, characterized in that, A central shaft (17) is fixedly installed at the center of the upper part of the truncated cone (2), and the turntable one (3) and the turntable two (4) are both mounted on the central shaft (17) using bearings.

6. The planetary carrier drilling fixture that is easy to adjust according to claim 5, characterized in that, The upper and lower surfaces of the first turntable (3) are in contact with the lower surface of the second turntable (4) and the upper surface of the frustum (2), respectively.

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