Automatic indexing tooth punching mechanism

Abstract

The invention relates to the technical field of machining, in particular to an automatic indexing tooth punching mechanism which is characterized in that an indexing plate is detachably connected to the upper end of a connecting sleeve, a positioning sleeve is arranged at the upper end of the indexing plate, a connecting shaft penetrates through the positioning sleeve, the bottom end of the connecting shaft penetrates through the indexing plate and is connected with a first threaded rod, and an end is arranged at the upper end of the connecting shaft; according to the invention, the coupling half body is placed on the index plate, the locking sleeve extrudes and fixes the coupling half body, then the shifting pin assembly is moved to be inserted into a tooth gap of the index plate, after the milling cutter mills one tooth, the fixing nut is loosened, and the coupling half body is fixed by the shifting pin assembly. Meanwhile, the shifting pin assembly is pulled out towards the outer side, the dividing plate is rotated to the next tooth and then fixed, rough milling machining of all tooth profiles of the coupler half body is completed in sequence, the dividing plate is matched with the shifting pin assembly, accurate indexing is conducted on the coupler tooth profiles, and efficient and accurate machining can be conducted on the coupler tooth profiles.

Description

Technical Field

[0001] This invention relates to the field of machining technology, and in particular to an automatic indexing gear-opening mechanism. Background Technology

[0002] The serpentine spring coupling consists of a half-body, a serpentine spring, a cover, and standard parts. The half-body has several teeth distributed in the circumferential direction. The two halves are connected by the serpentine spring, thereby transmitting torque. It has the characteristics of large torque transmission, strong offset compensation capability, light weight, and safety and reliability.

[0003] Currently, the semi-circular arc tooth profile, as an emerging coupling half-body tooth profile design, is widely used in the entire series of serpentine spring couplings. Because it needs to adapt to different specifications and working conditions, there are significant variations in key parameters such as tooth spacing, tooth height, and number of teeth, resulting in complex geometry and high machining accuracy requirements. Traditional general-purpose machine tools are limited by their machining capabilities and flexibility, making it difficult to efficiently and accurately machine such irregular tooth profiles. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing machine tools, which are limited by their processing capabilities and flexibility, making it difficult to efficiently and accurately process such irregular tooth profiles. Therefore, an automatic indexing tooth-opening mechanism is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: Design an automatic indexing and gear-opening mechanism, including a base, a bracket at the upper end of the base, a connecting sleeve rotatably mounted on the bracket, an indexing plate detachably connected to the upper end of the connecting sleeve, a positioning sleeve at the upper end of the indexing plate, a connecting shaft passing through the positioning sleeve, the bottom end of the connecting shaft passing through the indexing plate and connected to a first threaded rod, the bottom end of the first threaded rod passing through the connecting sleeve and threadedly connected to a fixing nut, an end cap at the upper end of the connecting shaft, a second threaded rod mounted on the upper end of the end cap, a locking sleeve threadedly connected to the second threaded rod, and a pin assembly for limiting the indexing plate on the bracket.

[0006] Preferably, a number of screws are inserted into the upper end of the indexing plate, and a number of threaded grooves are opened on the upper end of the connecting sleeve, with one end of each screw threaded into the corresponding threaded groove.

[0007] Preferably, the connecting shaft, the first threaded rod, the end, and the second threaded rod are an integral structure.

[0008] Preferably, the pin assembly includes a support, on which symmetrically arranged fixing bolts are inserted, one end of each fixing bolt being connected to a bracket, the support having a threaded hole, and a third screw being provided in the threaded hole, one end of the third screw being inserted into the tooth gap of the indexing plate.

[0009] Preferably, one end of the third screw is provided with a pointed tip, which is matched with the tooth clearance of the indexing plate.

[0010] Preferably, a handle sleeve is fixedly connected to the other end of the third screw, and a handle is provided on the handle sleeve.

[0011] Preferably, the handle is provided with anti-slip texture for preventing slippage.

[0012] The automatic indexing tooth-opening mechanism proposed in this invention has the following advantages: By placing the coupling half on the indexing plate, the locking sleeve presses and fixes the coupling half, and then moving the pin assembly to insert into the tooth gap of the indexing plate, after the milling cutter finishes milling one tooth, the fixing nut is loosened and the pin assembly is pulled outwards. The indexing plate is then rotated to the next tooth and fixed again. The rough milling of each tooth profile of the coupling half is completed in sequence. By using the cooperation of the indexing plate and the pin assembly, the coupling tooth profile is accurately indexed, and efficient and precise machining can be performed. Attached Figure Description

[0013] Figure 1 This is a top view schematic diagram of an automatic indexing tooth-opening mechanism proposed in this invention; Figure 2 This is a cross-sectional structural schematic diagram of an automatic indexing tooth-opening mechanism proposed in this invention; Figure 3 This is a schematic diagram of the connection between the connecting shaft and the end head in an automatic indexing gear-opening mechanism proposed in this invention; Figure 4 This is a schematic diagram of the cutting steps.

[0014] In the diagram: 1. Base; 2. Bracket; 3. Connecting sleeve; 4. Indexing plate; 5. Threaded groove; 6. Screw; 7. Positioning sleeve; 8. Connecting shaft; 9. First threaded rod; 10. Fixing nut; 11. End; 12. Second threaded rod; 13. Locking sleeve; 14. Pin assembly; 141. Support; 142. Fixing bolt; 143. Threaded hole; 144. Third screw; 145. Tip; 146. Handle sleeve; 147. Handle. Detailed Implementation

[0015] 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. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0016] Example 1: Refer to Figure 1-3 An automatic indexing and gear-opening mechanism includes a base 1, a support 2 at the upper end of the base 1, a connecting sleeve 3 rotatably mounted on the support 2, an indexing plate 4 detachably connected to the upper end of the connecting sleeve 3, a plurality of screws 6 inserted into the upper end of the indexing plate 4, a plurality of threaded grooves 5 opened at the upper end of the connecting sleeve 3, one end of each screw 6 being threaded into the corresponding threaded groove 5, a positioning sleeve 7 at the upper end of the indexing plate 4, a connecting shaft 8 passing through the positioning sleeve 7, the bottom end of the connecting shaft 8 passing through the indexing plate 4 and connected to a first threaded rod 9, the bottom end of the first threaded rod 9 passing through the connecting sleeve 3 and threadedly connected to a fixing nut 10, an end head 11 at the upper end of the connecting shaft 8, a second threaded rod 12 mounted on the upper end of the end head 11, the connecting shaft 8, the first threaded rod 9, the end head 11 and the second threaded rod 12 being an integral structure, a locking sleeve 13 threadedly connected to the second threaded rod 12, and a pin assembly 14 for limiting the indexing plate 4 on the support 2.

[0017] Work process: The coupling half is placed on the indexing plate 4, which supports the bottom of the coupling half. After the locking sleeve 13 rotates, it moves downward along the length of the second threaded rod 12. After cooperating with the auxiliary pressure plate, it presses and fixes the upper end of the coupling half, so that the coupling half cannot move vertically after being placed. Then, the pin assembly 14 is moved so that one end of the pin assembly 14 is inserted into the tooth gap of the indexing plate 4, which limits and fixes the indexing plate 4, so that the indexing plate 4 cannot rotate horizontally, thus completing the limiting and fixing of the coupling half. When the gear is being cut, the distance between the two fixed-distance saw blade milling cutters on the main spindle of the gear hobbing machine is adjusted. After the gear hobbing machine starts working, it drives the two milling cutters to move back and forth and up and down to achieve rough milling of one groove of the coupling half. During rough milling, the two saw blade milling cutters work at the same time. The first cut processes two straight surfaces, and the subsequent cutters process one straight surface and one inclined surface. This process is carried out in sequence to achieve rough milling of the half-body tooth profile, which makes the reserved fine milling allowance small and greatly improves the processing efficiency of the coupling half-body tooth profile. After milling one tooth, loosen the fixing nut 10 and pull out the pin assembly 14 outward. Rotate the indexing plate 4 to the next tooth, then use the pin assembly 14 to limit and fix the indexing plate 4, and tighten the fixing nut 10. This process is repeated to complete the rough milling of each tooth profile of the coupling half. By using the indexing plate 4 and the pin assembly 14, the coupling tooth profile is precisely indexed. Different types of indexing plates can be used to achieve rough milling of various models of couplings. Furthermore, by adjusting the distance between the two saw blade milling cutters, the rough machining allowance of the half tooth profile can be adjusted arbitrarily to achieve rough machining of various tooth profiles.

[0018] Example 2: When limiting and fixing the indexing plate 4, it is impossible to quickly perform the limiting action. (Refer to...) Figure 1As another preferred embodiment of the present invention, the difference from embodiment 1 is that the pin assembly 14 includes a support 141, and symmetrically arranged fixing bolts 142 are inserted into the support 141. One end of each fixing bolt 142 is connected to the bracket 2. The support 141 is provided with a threaded hole 143, and a third screw 144 is provided in the threaded hole 143. One end of the third screw 144 is inserted into the tooth gap of the indexing plate 4. One end of the third screw 144 is provided with a tip 145, which cooperates with the tooth gap of the indexing plate 4. The other end of the third screw 144 is fixedly connected to a handle sleeve 146. The handle sleeve 146 is provided with a handle 147, and the handle 147 is provided with anti-slip texture for anti-slip. When fixing the indexing plate 4, rotate the handle 147. The handle 147 drives the third screw 144 to rotate through the handle sleeve 146. The third screw 144 moves towards the indexing plate 4 under the limitation of the threaded hole 143. The third screw 144 drives the tip 145 to move. After the tip 145 moves a certain distance, it is inserted into the tooth gap of the indexing plate 4 to fix the indexing plate 4. By rotating the handle 147, the position of the tip 145 can be changed, which makes it convenient to quickly fix the indexing plate 4.

[0019] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An automatic indexing and gear-opening mechanism, comprising a base (1), a bracket (2) provided at the upper end of the base (1), a connecting sleeve (3) rotatably provided on the bracket (2), and an indexing plate (4) detachably connected to the upper end of the connecting sleeve (3), characterized in that, in: The indexing plate (4) is provided with a positioning sleeve (7) at the upper end. A connecting shaft (8) is provided through the positioning sleeve (7). The bottom end of the connecting shaft (8) passes through the indexing plate (4) and is connected to a first threaded rod (9). The bottom end of the first threaded rod (9) passes through the connecting sleeve (3) and is threadedly connected to a fixing nut (10). The upper end of the connecting shaft (8) is provided with an end head (11). A second threaded rod (12) is installed on the upper end of the end head (11). A locking sleeve (13) is threadedly connected to the second threaded rod (12). The bracket (2) is provided with a pin assembly (14) for limiting the indexing plate (4).

2. The automatic indexing and gear-opening mechanism according to claim 1, characterized in that, The upper end of the indexing plate (4) is fitted with several screws (6), and the upper end of the connecting sleeve (3) is provided with several threaded grooves (5). One end of each screw (6) is threaded into the corresponding threaded groove (5).

3. The automatic indexing and gear-opening mechanism according to claim 1, characterized in that, The connecting shaft (8), the first threaded rod (9), the end (11), and the second threaded rod (12) are an integral structure.

4. The automatic indexing and tooth-opening mechanism according to claim 1, characterized in that, The pin assembly (14) includes a support (141), on which symmetrically arranged fixing bolts (142) are inserted. One end of each fixing bolt (142) is connected to the bracket (2). The support (141) has a threaded hole (143), and a third screw (144) is provided in the threaded hole (143). One end of the third screw (144) is inserted into the tooth gap of the indexing plate (4).

5. The automatic indexing and gear-opening mechanism according to claim 4, characterized in that, The third screw (144) has a pointed tip (145) at one end, which is matched with the tooth gap of the indexing plate (4).

6. The automatic indexing and gear-opening mechanism according to claim 5, characterized in that, The other end of the third screw (144) is fixedly connected to a handle sleeve (146), and a handle (147) is provided on the handle sleeve (146).

7. The automatic indexing and tooth-opening mechanism according to claim 6, characterized in that, The handle (147) is provided with anti-slip texture for anti-slip purposes.

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