Tool for gear hobbing machine to machine gear shaft spline with through hole

Abstract

The utility model discloses a tool for a gear hobbing machine to machine a gear shaft spline with a through hole, which comprises a connecting rod, a baffle is arranged at one end of the connecting rod, the position of the baffle on the connecting rod is adjustable, the other end of the connecting rod is detachably connected with a fixer, and the diameter of the fixer is smaller than that of a gear shaft to be machined. The fixture can be clamped by a chuck of a small-sized gear hobbing machine, so that the spline of the large-diameter gear shaft is machined by the small-sized gear hobbing machine, the machining flexibility of the small-sized gear hobbing machine is greatly improved, and the machining equipment cost is greatly reduced.

Description

Technical Field

[0001] The utility model relates to a tool, in particular to a tool used for machining splines of gear shafts with through holes on a gear hobbing machine. Background Art

[0002] Gears are widely used in life and are the core components of gear transmission devices. The level of gear manufacturing in my country has been greatly improved, and the processing of ordinary gears has reached a high level. So how to improve the processing efficiency and cost savings of mass production is a problem that the gear manufacturing industry has always been concerned about. As the output torque of the gear transmission device continues to increase, the size of its output gear shaft is also increasing. The gear shaft is often connected to the gear transmission device through a spline to transmit torque through the spline. Due to the large size of the gear shaft, the processing of the spline is beyond the range of the hobbing machine, which greatly increases the difficulty of processing the gear shaft. Utility Model Content

[0003] The utility model aims to provide a tool for machining splines of gear shafts with through holes by a gear hobbing machine, which solves the problem that the gear hobbing machine in the prior art cannot machine large-diameter gear shafts.

[0004] To achieve the purpose of the utility model, it includes: a connecting rod, one end of which is provided with a baffle, the position of the baffle on the connecting rod is adjustable, and the other end of the connecting rod is detachably connected to a fixture, and the diameter of the fixture is smaller than the diameter of the gear shaft to be processed.

[0005] The position of the baffle on the connecting rod is adjustable, which includes: a side of the connecting rod where the baffle is provided is provided with a thread, and the connecting rod is connected to a nut through the thread.

[0006] The baffle is in a circular shape, and waist-shaped holes for connecting the gear shaft are respectively arranged on both sides of the central hole of the baffle.

[0007] The fixer comprises a fixing seat, a fixing plate is arranged on the upper part of the fixing seat, and a lower stop is arranged on the upper part of the fixing plate.

[0008] The fixing plate is provided with a waist-shaped hole.

[0009] The baffle is provided with an upper stop.

[0010] The connecting rod comprises a rod body, one end of which is provided with a connecting plate, and the connecting plate is provided with a fixing hole.

[0011] The fixing hole is a countersunk hole.

[0012] The utility model connects the gear shaft through the mutually matched baffle, fixer and connecting rod, and then uses the chuck of the gear hobbing machine to hold the fixer, so as to use the gear hobbing machine to process the spline of the gear shaft with a large diameter, which greatly improves the processing flexibility of the gear hobbing machine and greatly reduces the equipment cost and processing difficulty. Secondly, the upper stopper provided on the baffle and the lower stopper provided on the fixing plate facilitate the positioning of the gear shaft and ensure that the gear shaft is aligned with the center of the small gear hobbing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a usage state diagram of the utility model. Figure 2 for Figure 1 Middle AA view, Figure 3 It is an enlarged structural diagram of the utility model.

[0014] In the figure: 1 gear shaft, 2 spindle, 3 operating table, 4 tool holder, 5 workbench, 6 shaft fixing bolt, 7 nut, 8 baffle, 9 connecting rod, 10 fixer, 11 bottom bolt, 12 chuck. DETAILED DESCRIPTION

[0015] like Figure 1 , Figure 2 and Figure 3 The utility model shown includes: a connecting rod 9, a baffle 8 is provided at one end of the connecting rod 9, the position of the baffle 8 on the connecting rod 9 is adjustable, the other end of the connecting rod 9 is detachably connected to a fixture 10, the diameter of the fixture 10 is smaller than the diameter of the gear shaft 1 to be processed, and both ends of the gear shaft 1 are respectively provided with process holes to connect the fixture 10 and the baffle 8. The position of the baffle 8 on the connecting rod 9 is adjustable, including: a thread is provided on one side of the connecting rod 9 provided with the baffle, and the connecting rod 9 is connected to the nut 7 through the thread. The baffle 8 is annular, and waist-shaped holes for connecting the gear shaft are provided on both sides of the center hole of the baffle 8, respectively, and the waist-shaped holes are convenient for the installation and debugging of the gear shaft. The lower part of the baffle 8 is also provided with an upper stopper, and the upper stopper is a concave stopper. The fixture 10 includes: a fixing seat, a fixing plate is provided on the upper part of the fixing seat, and a lower stopper is provided on the upper part of the fixing plate, and the lower stopper is a convex stopper. The fixing plate is provided with a waist-shaped hole. The connecting rod 9 comprises a rod body, one end of which is provided with a connecting plate, and the connecting plate is provided with a fixing hole, which is a countersunk hole, and the countersunk hole is convenient for connecting the connecting rod 9 and the fixer 10 together through the bottom bolt 11.

[0016] When the utility model is used, the connecting rod 9 and the fixing device 10 are first fixed together by the bottom bolt 11; then the fixing device 10 is installed on the gear shaft 1, positioned by the lower stop, and then the fixing device 10 is connected to the lower end surface of the gear shaft 1 by the fixed shaft bolt 6, the connecting rod 9 passes through the through hole in the center of the gear shaft 1, and then the connecting rod 9 is positioned by the upper stop of the baffle 8, and then it is pressed on the gear shaft 1 by the nut 7, and finally the baffle 8 is connected to the gear shaft 1 by the fixed shaft bolt 6 through the waist hole. Finally, the gear shaft 1 is fixed to the main shaft by the chuck 12 on the main shaft 2 of the gear hobbing machine, and the subsequent debugging process needs to be adjusted by adjusting the chuck 12 and the fixed shaft bolt 6 to gradually adjust the alignment.

[0017] The above-mentioned embodiments only express several implementation methods of the utility model, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A tool for machining splines of through-hole gear shafts on a gear hobbing machine, characterized in that: It comprises: a connecting rod, one end of which is provided with a baffle, the position of the baffle on the connecting rod is adjustable, and the other end of the connecting rod is detachably connected to a fixer, the diameter of the fixer is smaller than the diameter of the gear shaft to be processed.

2. A tool for machining splines of through-hole gear shafts on a gear hobbing machine according to claim 1, characterized in that: The position of the baffle on the connecting rod is adjustable, which includes: a side of the connecting rod where the baffle is provided is provided with a thread, and the connecting rod is connected to a nut through the thread.

3. A tool for machining splines of through-hole gear shafts on a gear hobbing machine according to claim 1, characterized in that: The baffle is in a circular shape, and waist-shaped holes for connecting the gear shaft are respectively arranged on both sides of the central hole of the baffle.

4. A tool for machining splines of through-hole gear shafts on a gear hobbing machine according to claim 1, characterized in that: The fixer comprises a fixing seat, a fixing plate is arranged on the upper part of the fixing seat, and a lower stop is arranged on the upper part of the fixing plate.

5. A tool for machining splines of through-hole gear shafts on a gear hobbing machine according to claim 4, characterized in that: The fixing plate is provided with a waist-shaped hole.

6. A tool for machining splines of a gear shaft with a through hole on a gear hobbing machine according to claim 2, characterized in that: The baffle is provided with an upper stop.

7. A tool for machining splines of a gear shaft with a through hole on a gear hobbing machine according to any one of claims 1 to 6, characterized in that: The connecting rod comprises a rod body, one end of which is provided with a connecting plate, and the connecting plate is provided with a fixing hole.

8. A tool for machining splines of a gear shaft with a through hole on a gear hobbing machine according to claim 7, characterized in that: The fixing hole is a countersunk hole.

Images