A kind of inner gear ring drilling jig

Abstract

The utility model relates to an inner tooth circle drilling clamp in the technical field of inner tooth circle machining, including base, be equipped with support on base, be equipped with fixed clamping piece and movable clamping piece on support, fixed clamping piece is fixed on support, and fixed clamping piece is fixed rod, and the other end of fixed rod cooperates with movable clamping piece, and movable clamping piece includes horizontal telescopic link and clamping plate, and the fixed end of horizontal telescopic link is fixed in fixed rod, and the telescopic end of horizontal telescopic link stretches out from fixed rod and is connected with clamping plate. Horizontal telescopic link is electric push rod or hydraulic cylinder. The utility model has the advantages of simple structure, low cost, wide use, adjustable clamping range, and is applicable to the clamping of different size inner tooth circles, and is favorable for production.

Description

Technical Field

[0001] This utility model belongs to the field of internal gear ring processing technology, specifically relating to an internal gear ring drilling fixture. Background Technology

[0002] An internal gear ring refers to the internal gear on the same axis as the planetary carrier in a planetary gear transmission. When machining the oil holes on the internal gear ring, a fixture must first be used to fix the gear ring, and then a drilling machine is used to drill the holes. Existing fixtures for this type of internal gear ring typically tighten from the outside or inside of the gear ring using a tensioning angle. If the clamping force is too tight, it can damage the internal gears, affecting the quality of the internal gear ring. If the clamping force is too weak, the fixing effect is limited, which is detrimental to production. Furthermore, since the positional accuracy requirements for the oil holes are not high, using more precise fixtures is costly and uneconomical. Therefore, a drilling fixture for internal gear rings is needed to solve the above technical problems. Summary of the Invention

[0003] To address the aforementioned deficiencies in existing technologies, this utility model provides an internal gear ring drilling fixture, comprising a base; a support is provided on the base, and a fixed clamping component and a movable clamping component are provided on the support. The fixed clamping component is fixed to the support and is a fixed rod. One end of the fixed rod is fixedly connected to the support, and the other end of the fixed rod cooperates with the movable clamping component. The movable clamping component includes a horizontal telescopic rod and a clamping plate. The fixed end of the horizontal telescopic rod is fixed inside the fixed rod, and the telescopic end of the horizontal telescopic rod extends out from the fixed rod and connects to the clamping plate. The horizontal telescopic rod is an electric push rod or a hydraulic cylinder. The internal gear ring to be processed is placed on the horizontal telescopic rod, and the position of the internal gear ring is adjusted so that the central axis of the internal gear ring is as close as possible to the central axis of the horizontal telescopic rod. Then, the horizontal telescopic rod retracts, and the movable clamping component moves towards the fixed rod until the movable clamping component and the fixed rod respectively abut against the two horizontal sides of the internal gear ring, thus fixing and clamping the internal gear ring.

[0004] Preferably, the clamping plate includes a long, rectangular fixed plate with a transmission cavity inside. A bidirectional screw is located within the transmission cavity, and a fixed ring is rotatably connected to the center of the bidirectional screw via a bearing. The fixed ring is fixedly connected to the inner wall of the transmission cavity. A first bevel gear is fixed to the bidirectional screw, meshing with a second bevel gear. The second bevel gear is connected to a rotating shaft, one end of which passes through the transmission cavity and is connected to a knob. Moving tubes are threaded into the forward and reverse threads of the bidirectional screw, respectively. Guide blocks are fixedly connected to the opposing ends of the two moving tubes. Guide grooves are provided on the inner wall of the corresponding transmission cavity, and the guide blocks are slidably positioned within their respective guide grooves. The opposing ends of the two moving tubes extend from both ends of the fixed plate, and clamping plates are fixedly connected to the moving tubes extending beyond the fixed plate. This configuration allows the bidirectional screw to rotate by rotating the knob, causing the two moving tubes to move towards or away from each other along the bidirectional screw, thereby adjusting the distance between the two clamping plates and making it suitable for clamping internal gear rings of different sizes. The inner diameter of the clamped internal gear ring is greater than the length of the fixing plate but less than the diameter of the fixing rod.

[0005] Preferably, the clamping plate has an elastic anti-slip layer on the surface near the fixing rod, which can be a wear-resistant rubber layer or a silicone layer.

[0006] Preferably, the top of the support is provided with a horizontal frame, and the drilling rig is provided on the horizontal frame.

[0007] Preferably, the horizontal frame is equipped with a linear module, and the drilling rig is mounted on the slide of the linear module. The drilling rig can move along the linear module, facilitating drilling at different positions on the arc-shaped outer wall of the internal gear ring.

[0008] This utility model also includes other components that enable the normal use of an internal gear ring drilling fixture, such as control components for hydraulic cylinders, electric push rods, drilling rigs, and linear modules, all of which are conventional technologies in the field. Furthermore, devices or components not limited in this utility model, such as hydraulic cylinders, electric push rods, bidirectional screws, drilling rigs, and linear modules, also employ conventional technologies and equipment in the field.

[0009] The advantages of this invention are: simple structure, low cost, wide range of applications, adjustable clamping range, suitable for clamping internal gear rings of different sizes; clamping will not damage the internal teeth of the internal gear ring, which is beneficial to production. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0011] Figure 1 This is a schematic diagram of the structure of an internal gear ring drilling fixture in Embodiment 1 of this utility model; Figure 2 This is a schematic diagram of the structure of an internal gear ring drilling fixture in Example 1; Figure 3 This is a schematic diagram of the clamping plate in the embodiment; Figure 4 for Figure 2 Diagram showing the state of the internal gear ring when it is clamped.

[0012] In the diagram: 1. Bracket; 2. Drilling rig; 3. Fixed rod; 4. Fixed end of horizontal telescopic rod; 5. Fixed plate; 6. Moving tube; 7. Clamping plate; 8. Knob; 9. Bidirectional screw; 10. Bevel gear one; 11. Bevel gear two; 12. Guide block; 13. Guide groove; 14. Slide table; 15. Linear module; 16. Internal gear ring; 17. Elastic anti-slip layer; 18. Base. Detailed Implementation

[0013] The present invention will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely for explaining the present invention and is not intended to limit it. Any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art based on the embodiments of the present invention without inventive effort to obtain all other embodiments should be included within the protection scope of the present invention.

[0014] Example 1 like Figure 1 , 3 As shown, this utility model provides a drilling fixture for internal gear rings, including a base 18; a bracket 1 is provided on the base 18, and a fixed clamping component and a movable clamping component are provided on the bracket 1. The fixed clamping component is fixed to the bracket 1, and is a fixed rod 3. One end of the fixed rod 3 is fixedly connected to the bracket 1, and the other end of the fixed rod 3 cooperates with the movable clamping component. The movable clamping component includes a horizontal telescopic rod and a clamping plate. The fixed end 4 of the horizontal telescopic rod is fixed inside the fixed rod 3, and the telescopic end of the horizontal telescopic rod extends out from inside the fixed rod 3 and connects to the clamping plate. The horizontal telescopic rod is an electric push rod or a hydraulic cylinder.

[0015] The clamping plate includes a long strip-shaped fixing plate 5. The fixing plate 5 has a transmission cavity, and the transmission cavity has a bidirectional screw 9. The center of the bidirectional screw 9 is rotatably connected to a fixing ring through a bearing. The fixing ring is fixedly connected to the inner wall of the transmission cavity. A bevel gear 10 is fixed on the bidirectional screw 9. The bevel gear 10 meshes with a bevel gear 11. The bevel gear 11 is connected to a rotating shaft. One end of the rotating shaft passes through the transmission cavity and is connected to a knob 8. Moving tubes 6 are threaded into the forward and reverse threads of the bidirectional screw 9, respectively. Guide blocks 12 are fixedly connected to the opposite ends of the two moving tubes 6. The inner wall of the transmission cavity corresponding to the guide block 12 has a guide groove 13. The guide block 12 is slidably disposed in the corresponding guide groove 13. The opposite ends of the two moving tubes 6 extend from both ends of the fixing plate 5, and the moving tubes 6 extending out of the fixing plate 5 are fixedly connected to clamping plates 7. This design allows the two moving tubes 6 to move in opposite directions or towards each other along the double-ended screw 9 by rotating the knob 8, thereby adjusting the distance between the two clamping plates 7. This makes it suitable for clamping internal gear rings 16 of different sizes. The inner diameter of the clamped internal gear ring 16 is greater than the length of the fixed plate 5 but less than the diameter of the fixed rod 3.

[0016] The clamping plate 7 is provided with an elastic anti-slip layer 17 on the surface near the fixing rod 3, which can be a wear-resistant rubber layer or a silicone layer.

[0017] The top of the support 1 is provided with a horizontal frame, and the drilling rig 2 is provided on the horizontal frame.

[0018] During operation, the internal gear ring 16 to be processed is placed on the horizontal telescopic rod. The position of the internal gear ring 16 is adjusted so that its central axis coincides as closely as possible with the central axis of the horizontal telescopic rod. Then, the horizontal telescopic rod retracts, and the movable clamping part moves towards the fixed rod 3 until the movable clamping part and the fixed rod 3 respectively abut against the two horizontal sides of the internal gear ring 16, thus fixing the internal gear ring 16 in place. The drilling machine can then perform drilling operations on the internal gear ring. During this process, only the two horizontal sides of the internal gear ring are clamped, which will not damage the internal teeth. When drilling is required at another location, the horizontal telescopic rod is slightly extended to allow the internal gear ring to rotate (this can be done manually or through a mechanical gripper). After rotating the internal gear ring to the other location requiring drilling, it is clamped again for drilling.

[0019] Example 2 like Figure 2-4 As shown, the difference between this embodiment and Embodiment 1 is that a linear module 15 is provided on the horizontal frame, and the drilling rig 2 is mounted on the slide table 14 of the linear module 15. The drilling rig 2 can move along the linear module 15, which facilitates drilling at different positions on the arc-shaped outer wall of the internal gear ring 16.

[0020] In this embodiment, the drilling rig, electric push rod, hydraulic rod, and linear module are all conventional technologies and equipment in the field and will not be modified. Their structure and working principle can be found in the instruction manual, and they are all existing technologies, so they will not be described in detail here.

[0021] The embodiments of this utility model have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A drilling fixture for internal gear rings, comprising a base; characterized in that: The base is provided with a bracket, and the bracket is provided with a fixed clamping component and a movable clamping component. The fixed clamping component is fixed to the bracket and is a fixed rod. One end of the fixed rod is fixedly connected to the bracket, and the other end of the fixed rod cooperates with the movable clamping component. The movable clamping component includes a horizontal telescopic rod and a clamping plate. The fixed end of the horizontal telescopic rod is fixed inside the fixed rod, and the telescopic end of the horizontal telescopic rod extends out from inside the fixed rod and is connected to the clamping plate.

2. The internal gear ring drilling fixture according to claim 1, characterized in that: The clamping plate includes a long, rectangular fixed plate with a transmission cavity inside. A bidirectional screw is located within the transmission cavity, and a fixed ring is rotatably connected to the center of the bidirectional screw via a bearing. The fixed ring is fixedly connected to the inner wall of the transmission cavity. A first bevel gear is fixed to the bidirectional screw, meshing with a second bevel gear. The second bevel gear is connected to a rotating shaft, one end of which passes through the transmission cavity and is connected to a knob. Moving tubes are threaded onto the forward and reverse threads of the bidirectional screw, respectively. Guide blocks are fixedly connected to the opposing ends of the two moving tubes. Guide grooves are provided on the inner walls of the corresponding transmission cavities, and the guide blocks are slidably positioned within these grooves. The opposing ends of the two moving tubes extend from both ends of the fixed plate, and clamping plates are fixedly connected to the extending ends of the moving tubes.

3. The internal gear ring drilling fixture according to claim 2, characterized in that: An elastic anti-slip layer is provided on the surface of the clamping plate near the fixing rod.

4. The internal gear ring drilling fixture according to claim 1, characterized in that: The top of the support is equipped with a horizontal frame, and the drilling rig is mounted on the horizontal frame.

5. The internal gear ring drilling fixture according to claim 4, characterized in that: The horizontal frame is equipped with a linear module, and the drilling rig is mounted on the slide of the linear module.

Images