A gear drilling tool for power transmission big gear ring of engineering machinery

Abstract

This utility model discloses a tooling for drilling the gear ring of a power transmission in engineering machinery. It includes a base plate, a mandrel, a notch, a positioning base, a positioning hole, a positioning shaft, a V-block, a bushing, a handle, a connecting shaft, a threaded hole, a threaded thread, a spring, a workpiece disassembly / assembly partition, a round hole, a clamping bolt hole, a clamping bolt, and a clamping block. This utility model utilizes a mandrel that is detachably mounted on the base plate. The handle shaft, bushing, positioning shaft, spring, and V-block are mounted on the detachable positioning base. The clamping bolt and clamping block are then mounted on the base plate. This structure facilitates assembly and replacement, allowing for convenient positioning and clamping of the large gear ring before machining. This reduces machining time, simplifies machining, lowers costs, and improves machining efficiency.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a tooling for drilling teeth on a large gear ring for power transmission in engineering machinery. Background Technology

[0002] Large internal spline gear rings have large outer diameters, and many through holes have different tooth alignment requirements on both ends. Threaded holes also have relative position requirements on both ends. It can be said that the product has a large outer diameter, a large number of holes, complex position requirements, and high machining accuracy requirements. Most importantly, they all have tooth alignment (groove width) requirements. Currently, there are no such large and precise tooth alignment toolings on the market, which leads to problems such as long processing time, difficulty in processing, low efficiency, and high cost.

[0003] Therefore, improvements must be made to address the aforementioned deficiencies. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a tooling for drilling the teeth of a large gear ring in the power transmission of engineering machinery, thereby solving the problems in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] A drilling fixture for aligning gears in a power transmission ring gear of engineering machinery includes a base plate. A mandrel is detachably mounted in the middle of the base plate. The mandrel has a notch at its left end, and a positioning base is located inside the notch. The positioning base has positioning holes that penetrate the positioning base from both sides. A positioning shaft is installed within the positioning holes. The left end of the positioning shaft extends to the left side of the positioning base, and a V-block is detachably connected to the left end of the positioning shaft. A handle shaft is located on the right side of the positioning base, and a bushing is located at the right end of the positioning hole. The handle shaft includes a handle and a bushing located at the left end of the handle. The connecting shaft passes through the bushing and extends into the positioning hole. The right end face of the positioning shaft is provided with a threaded hole, and the left end of the connecting shaft is provided with a thread. The thread is connected to the threaded hole. A spring is provided on the connecting shaft in the positioning hole. A workpiece disassembly and assembly partition is inserted on the connecting shaft between the bushing and the handle. Multiple round holes are evenly provided on the bottom plate below the outer side of the mandrel. Multiple evenly distributed clamping bolt holes are provided on the outer side of the round holes. A clamping bolt is provided on the clamping bolt hole, and a clamping block is sleeved on the clamping bolt.

[0007] Furthermore, a connecting ring is provided on the inner side of the mandrel, and the connecting ring is detachably connected to the base plate by a plurality of evenly distributed first bolts.

[0008] Furthermore, the right end of the V-block is provided with a plug hole, and the upper surface of the V-block is provided with a second bolt mounting hole communicating with the plug hole. A second bolt is provided in the second bolt mounting hole, and the second bolt is detachably connected to the positioning shaft in the plug hole.

[0009] Furthermore, a connecting plate is provided under the positioning base. The connecting plate is integrally formed with the base. The connecting plates on the front and rear sides of the positioning base are detachably connected to the base plate by a third bolt.

[0010] Furthermore, the pressing block has a "┐" shaped structure.

[0011] Furthermore, the pressure block is provided with a waist-shaped hole, and the clamping bolt passes through the waist-shaped hole and is connected to the clamping bolt hole.

[0012] Furthermore, the workpiece disassembly and assembly partition includes a vertical circular plate, the lower end of which is provided with an opening that mates with the connecting shaft, and the upper end of which is provided with a horizontal plate.

[0013] Furthermore, the base plate has mounting and fixing ports on both the left and right ends.

[0014] The beneficial effects of this utility model are:

[0015] By adopting the above technical solution, since the mandrel can be detachably installed on the base plate, and the handle shaft, bushing, positioning shaft, spring and V-block are installed on the detachable positioning base, and the clamping bolts and pressure blocks are installed on the base plate, this structure is easy to assemble and replace. It is convenient to position and clamp the large gear ring with tooling and then process it. This will reduce processing time, facilitate processing, reduce costs and improve processing efficiency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of a tooth-drilling tooling for a large gear ring in power transmission of engineering machinery according to the present invention.

[0017] Figure 2 This is a top view schematic diagram of an embodiment of a tooth-drilling tool for a large gear ring in the power transmission of engineering machinery according to the present invention.

[0018] Figure 3 for Figure 2 Schematic diagram of the sectional structure of the middle AA section;

[0019] Figure 4 This is a three-dimensional structural diagram of the bushing in one embodiment of the tooth-drilling tooling for the large gear ring of power transmission in engineering machinery according to this utility model.

[0020] Figure 5This is a three-dimensional structural diagram of a V-shaped block in one embodiment of a drilling tool for a large gear ring in power transmission of engineering machinery according to the present invention.

[0021] Figure 6 This is a three-dimensional structural diagram of a workpiece partition plate for disassembling and assembling in one embodiment of a tooth-drilling tool for a large gear ring of power transmission in engineering machinery according to this utility model.

[0022] Figure 7 This is a three-dimensional structural diagram of the positioning base in one embodiment of the tooth-drilling tool for a large gear ring of power transmission in engineering machinery according to this utility model.

[0023] Figure 8 This is a three-dimensional structural diagram of the positioning shaft in one embodiment of a tooth-drilling tool for a large gear ring of power transmission in engineering machinery according to this utility model.

[0024] Figure 9 This is a three-dimensional structural diagram of the handle shaft in one embodiment of a tooth-drilling tool for a large gear ring of power transmission in engineering machinery according to this utility model.

[0025] Figure 10 This is a three-dimensional structural diagram of the mandrel in one embodiment of the tooth-drilling tool for a large gear ring of power transmission in engineering machinery according to this utility model.

[0026] Figure 11 This is a three-dimensional structural diagram of the pressure block in one embodiment of a tooth-drilling tool for a large gear ring in the power transmission of engineering machinery according to the present invention.

[0027] Attachment numbers and their descriptions:

[0028] 1. Base plate; 2. Handle; 3. Mandrel; 4. Mounting and fixing port; 5. Round hole; 6. Pressure block; 7. Clamping bolt; 8. Waist-shaped hole; 9. First locating pin; 10. First bolt; 11. Connecting ring; 12. Positioning base; 13. Positioning shaft; 14. V-block; 15. Second locating pin; 16. Third bolt; 17. Connecting plate; 18. Bushing; 19. Workpiece disassembly and assembly partition; 20. Spring; 21. Connecting shaft; 22. Insertion hole; 23. Second bolt mounting hole; 24. Horizontal plate; 25. Opening; 26. Positioning hole; 27. Threaded hole; 28. Notch. Detailed Implementation

[0029] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0030] Reference Figures 1 to 11 This utility model provides a tooling for drilling teeth on a large gear ring in a power transmission system of engineering machinery. It includes a base plate 1, a mandrel 3 detachably mounted in the middle of the base plate 1, a notch 28 at the left end of the mandrel 3, a positioning base 12 inside the notch 28, a positioning hole 26 penetrating the positioning base 12 from both sides, a positioning shaft 13 inside the positioning hole 26, the left end of the positioning shaft 13 extending to the left side of the positioning base 12, a V-block 14 detachably connected to the left end of the positioning shaft 13, a handle shaft on the right side of the positioning base 12, a bushing 18 at the right end of the positioning hole 26, and the handle shaft including a handle 2 and a bushing located on the left side of the handle 2. The connecting shaft 21 passes through the bushing 18 and extends into the positioning hole 26. The right end face of the positioning shaft 13 has a threaded hole 27, and the left end of the connecting shaft 21 has a threaded thread (not shown in the figure), which connects to the threaded hole 27. A spring 20 is provided on the connecting shaft 21 within the positioning hole 26. A workpiece disassembly / assembly partition 19 is inserted into the connecting shaft 21 between the bushing 18 and the handle 2. Multiple round holes 5 are evenly distributed on the base plate 1 below the outer side of the mandrel 3. Multiple evenly distributed clamping bolt holes are provided outside the round holes 5. Clamping bolts 7 are provided in the clamping bolt holes, and clamping blocks 6 are fitted onto the clamping bolts 7. The round holes 5 are used for positioning corresponding to the round holes on the workpiece. The bushing 18 is a T-shaped bushing that mates with the positioning hole 26.

[0031] This technical solution uses a mandrel 3 that can be detachably mounted on a base plate 1. A handle shaft, bushing 18, positioning shaft 13, spring 20, and V-block 14 are installed on a detachable positioning base 12. A clamping bolt 7 and a pressure block 6 are installed on the base plate 1. This structure is easy to assemble and replace, and it is convenient to position and clamp the large gear ring with tooling before processing. This will reduce processing time, facilitate processing, reduce costs, and improve processing efficiency.

[0032] The purpose of the entire tooling is to clamp workpieces, quickly position teeth, clamp and lock, and disassemble products;

[0033] The purpose of base plate 1 is to provide overall positioning and connection for components such as mandrel 3, positioning base 12, pressure block 6 and clamping bolt 7;

[0034] Purpose of mandrel 3: To center the internal spline gear ring (workpiece), ensure product clamping, and reduce product out-of-roundness;

[0035] The purpose of the positioning base 12 is to connect the base plate 1 and support the mounting of the handle shaft, bushing 18, positioning shaft 13, spring 20 and V-block 14.

[0036] Applications of handle shafts: product assembly / disassembly and product positioning.

[0037] Purpose of bushing 18: to facilitate the installation of the handle shaft and to limit the movement of spring 20;

[0038] The purpose of positioning shaft 13 is to connect the handle shaft and V-block 14, and to be supported by positioning base 12.

[0039] Purpose of V-block 14: To clamp the internal spline gear ring;

[0040] Purpose of pressure block 6: To press the internal spline gear ring after accurate positioning;

[0041] Purpose of workpiece disassembly and assembly partition 19: When disassembling a workpiece, pull back the handle shaft forcefully to compress the spring 20, insert the workpiece disassembly and assembly partition 19, so that the V-block 14 is released, and the workpiece can be disassembled and clamped.

[0042] The working principle of this technical solution:

[0043] Disassembly and assembly: Pull the handle shaft back forcefully to compress the spring 20, insert the workpiece disassembly and assembly partition 19, so that the V-block 14 is released, and the workpiece can be disassembled and clamped.

[0044] Positioning and clamping: After loading the workpiece, adjust the workpiece so that the center of the tooth thickness of the V-block 14 and the internal spline gear ring are aligned. Pull back the handle shaft and remove the workpiece disassembly plate 19. Then put the handle shaft back, clamp the V-block 14, and position it in place. Lock the pressure block 6 with the clamping bolt 7 to process the product.

[0045] Technical features of this technical solution:

[0046] 1. Considering the process requirements for tooth position accuracy, the product is equipped with a 3-piece adapter mandrel, a 14-piece V-block for tooth positioning, and a 6-piece clamping block for clamping.

[0047] Second, the outer diameter of the product and tooling is very large and difficult to process. The use of a ring-shaped mandrel 3 greatly reduces the weight of the tooling, the processing difficulty and cost.

[0048] Third, high positioning accuracy. It can accurately position the tooth thickness of the internal spline gear ring; especially for large thin-walled parts, it can control deformation and ensure that the position accuracy of the end face positioning pin hole is below φ0.05, which is the core function of this tooling.

[0049] IV. Simple, accurate, reliable, and stable clamping. The adapter mandrel 3 ensures reliable workpiece deformation and hole clamping, and guarantees accurate, stable, and reliable positioning. The pressure block 6 ensures tightness, and disassembly and assembly are also simple.

[0050] V. Versatility and Multifunctionality. According to the workpiece's process requirements, holes need to be drilled on both end faces, and there are specific requirements for tooth position. By marking and positioning the tooth thickness, this tooling can be used in both processes, ensuring the positional requirements of the holes at both ends of the workpiece and the relative positional relationships between the holes.

[0051] 6. The lower end face of V-block 14 is on the upper end face of notch 28 to ensure that the positioned V-block 14 does not rotate and is accurately positioned, ensuring that the positioning is stable and reliable.

[0052] 7. It has a highly efficient positioning and strong promotional potential.

[0053] For example, in some embodiments, the inner side of the mandrel 3 is provided with a connecting ring 11, which is detachably connected to the base plate 1 by a plurality of evenly distributed first bolts 10. The connecting ring 11 is also provided with a first positioning pin 9 that cooperates with the base plate 1. There are two first positioning pins 9 symmetrically arranged, which facilitates quick positioning and installation.

[0054] For example, in some embodiments, the V-block 14 has a insertion hole 22 at its right end, and a second bolt mounting hole 23 communicating with the insertion hole 22 is provided on the upper surface of the V-block 14. A second bolt (not shown in the figure) is provided on the second bolt mounting hole 23, and the second bolt is detachably connected to the positioning shaft 13 inside the insertion hole 22. This facilitates the installation and replacement of the V-block 14, allowing for the replacement of a suitable V-block 14 according to the corresponding large gear ring.

[0055] For example, in some embodiments, a connecting plate 17 is provided under the positioning base 12. The connecting plate 17 is integrally formed with the base 12. The connecting plates 17 on both the front and rear sides of the positioning base 12 are detachably connected to the base plate 1 by third bolts 16. The connecting plate 17 is also provided with a second positioning pin 15 that cooperates with the base plate 1. There are two symmetrically arranged second positioning pins 15, which facilitates quick positioning and installation.

[0056] For example, in some embodiments, the pressure block 6 has a "┐" shaped structure. The lower end face of the pressure block 6 contacts the base plate 1, and the pressure block 6 is a structure corresponding to the rear end of the large gear ring. Large gear rings of different thicknesses can be tightened by replacing the pressure block 6 with one of different height.

[0057] For example, in some embodiments, the pressure block 6 is provided with a waist-shaped hole 8, and the clamping bolt 7 passes through the waist-shaped hole 8 and is connected to the clamping bolt hole. The contact area between the pressure block 6 and the workpiece can be appropriately adjusted through the waist-shaped hole 8.

[0058] For example, in some embodiments, the workpiece partition 19 includes a vertical circular plate, the lower end of which has an opening 25 that mates with the connecting shaft, and the upper end of which has a horizontal plate 24. The horizontal plate 24 facilitates the installation and removal of the workpiece partition 19.

[0059] For example, in some embodiments, the base plate 1 has mounting holes 4 at both its left and right ends. This facilitates the installation and fixing of the base plate 1.

[0060] In summary, this utility model, by employing a mandrel that can be detachably mounted on the base plate, and by installing the handle shaft, bushing, positioning shaft, spring, and V-block on the detachable positioning base, and by installing clamping bolts and pressure blocks on the base plate, provides a structure that is easy to assemble and replace. It also facilitates the positioning and clamping of the large gear ring using tooling, which reduces processing time, simplifies processing, lowers costs, and improves processing efficiency.

[0061] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A tooling for drilling teeth on a large gear ring of a power transmission in engineering machinery, characterized in that, The device includes a base plate, on which a mandrel is detachably mounted in the middle. The mandrel has a notch at its left end, and a positioning base is located inside the notch. The positioning base has positioning holes that extend through it from left to right. A positioning shaft is located within the positioning holes, and its left end extends to the left side of the positioning base. A V-block is detachably connected to the left end of the positioning shaft. A handle shaft is located on the right side of the positioning base, and a bushing is located at the right end of the positioning hole. The handle shaft includes a handle and a connecting shaft located at the left end of the handle. The connecting shaft passes through the bushing and extends into the positioning hole. A threaded hole is located on the right end face of the positioning shaft, and a thread is located at the left end of the connecting shaft. The thread connects to the threaded hole. A spring is located on the connecting shaft within the positioning hole. A workpiece disassembly / assembly partition is inserted into the connecting shaft between the bushing and the handle. Multiple round holes are evenly distributed on the base plate below the outer side of the mandrel. Multiple evenly distributed clamping bolt holes are located outside the round holes, and clamping bolts are located in the clamping bolt holes. A clamping block is fitted onto each clamping bolt.

2. The drilling fixture for the gear ring of the power transmission of engineering machinery according to claim 1, characterized in that, The inner side of the mandrel is provided with a connecting ring, which is detachably connected to the base plate by a plurality of evenly distributed first bolts.

3. The drilling fixture for the gear ring of the power transmission of engineering machinery according to claim 1, characterized in that, The V-block has a plug hole at its right end and a second bolt mounting hole communicating with the plug hole on its upper surface. A second bolt is provided in the second bolt mounting hole and is detachably connected to the positioning shaft inside the plug hole.

4. The drilling fixture for the gear ring of the power transmission of engineering machinery according to claim 1, characterized in that, The positioning base is provided with a connecting plate underneath. The connecting plate is integrally formed with the base. The connecting plates on the front and rear sides of the positioning base are detachably connected to the base plate by a third bolt.

5. The drilling fixture for the gear ring of the power transmission of engineering machinery according to claim 1, characterized in that, The pressing block has a "┐" shaped structure.

6. The drilling fixture for the gear ring of the power transmission of engineering machinery according to claim 1 or 5, characterized in that, The pressure block is provided with a waist-shaped hole, and the clamping bolt passes through the waist-shaped hole and is connected to the clamping bolt hole.

7. The drilling fixture for the gear ring of the power transmission of engineering machinery according to claim 1, characterized in that, The workpiece disassembly and assembly partition includes a vertical circular plate, the lower end of which has an opening that mates with the connecting shaft, and the upper end of which has a horizontal plate.

8. The drilling fixture for the gear ring of the power transmission of engineering machinery according to claim 1, characterized in that, The base plate has mounting and fixing ports on both the left and right ends.

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