Internal spline machining device for brake disc hub type products

Abstract

The brake disc hub type product internal spline machining device comprises a machine tool spindle, one end of the machine tool spindle is connected to a lathe, the other end of the machine tool spindle is connected with one end of a driving shaft through a cutter handle, and the driving shaft is rotationally connected to a limiting seat through a bearing; the other end of the driving shaft is connected with a plurality of milling cutter shafts through a bevel gear assembly, the bevel gear assembly is arranged in a protection box, and the milling cutter shafts are rotationally connected to the protection box; a milling cutter machining part is arranged at the outer end of the milling cutter shaft and makes contact with an inner spline on the brake disc hub. According to the internal spline machining device for the brake disc hub type products, machining of the internal spline of the brake disc can be efficiently completed, and the cutting machining efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of processing equipment, and in particular relates to an internal spline processing device for brake disc hub products. Background Art

[0002] At present, the processing of internal splines of heavy brake discs and brake hubs is mainly carried out by special equipment such as gear shaping machines or broaching machines. The use of special equipment to process internal splines is affected by the investment costs of equipment and tools, and is suitable for the production of large-volume orders. In view of the current market product diversification and rapid replacement, the use of special equipment equipped with special tools to process brake discs and brake hubs can no longer meet market demand in terms of production cost, processing accuracy, processing efficiency, and product model switching.

[0003] Therefore, in view of the current market characteristics of product diversification and rapid replacement, how to improve the processing efficiency of brake hub products has become the key technical problem to be solved in this plan. Utility Model Content

[0004] The utility model aims to provide a device for processing internal splines of brake disc hub products, which solves the technical problem of how to efficiently complete the processing of internal splines of brake discs and improves the processing efficiency.

[0005] A device for processing internal splines of brake disc hub products, comprising a machine tool spindle, one end of which is connected to a lathe, the other end of which is connected to one end of a drive shaft through a tool handle, and the drive shaft is rotatably connected to a limit seat through a bearing;

[0006] The other end of the driving shaft is connected to a plurality of milling cutter shafts through a bevel gear assembly, the bevel gear assembly is arranged inside the protection box, and the milling cutter shafts are rotatably connected to the protection box;

[0007] The outer end of the milling cutter shaft is provided with a milling cutter processing portion, and the milling cutter processing portion contacts the internal spline on the brake disc hub.

[0008] The bevel gear assembly includes a bevel gear 1 coaxially connected to the other end of the driving shaft, and the bevel gear 1 is meshed and connected with bevel gear 2, bevel gear 3, bevel gear 4, and bevel gear 5 at the same time. The bevel gear 2, bevel gear 3, bevel gear 4, and bevel gear 5 are respectively arranged in a circular array on the outside of the bevel gear 1.

[0009] The milling cutter shaft is rotatably connected to a positioning seat, and the positioning seat is connected to the outer side of the protection box.

[0010] The milling cutter shaft is rotatably connected to a fixing seat, and the fixing seat is connected to the inner side of the protection box.

[0011] The limiting seat is provided with a tool handle limiting column, and the tool handle limiting column is fixedly connected to the machine tool.

[0012] The outer end of the tool handle is provided with an outer conical surface, and the outer conical surface matches the inner conical hole of the machine tool spindle;

[0013] The outer end of the tool handle is connected with a rivet through a thread, and the rivet is connected to the free end of the cylinder, and the cylinder is fixedly connected to the inside of the machine tool spindle.

[0014] The positive effects of the utility model are as follows:

[0015] (1) The high-efficiency internal spline processing device designed in this scheme has a wider processing range for processing internal splines than traditional special equipment such as gear shaping machines or broaching machines. By equipping milling cutters of different specifications, it can process internal splines with inner diameters ranging from tens to hundreds of millimeters. Specifically, the milling cutter is connected to the cutter holder, and the cutter holder can be disassembled to achieve rapid replacement of the milling cutter.

[0016] (2) The high-efficiency internal spline processing device designed in this scheme can be equipped with a multi-axis forming milling cutter to process the internal spline, which has higher processing efficiency than a single-axis forming milling cutter.

[0017] (3) The high-efficiency internal spline processing device designed in this scheme can process spiral grooves by adopting a linkage processing method. That is, through an external linkage mechanism, the brake disc hub product can rotate slowly, solving the problem that the gear shaping machine or broaching machine can only process straight teeth. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the external structure of the internal spline processing device in the utility model.

[0019] Figure 2 It is a schematic diagram of the internal structure of the internal spline processing device in the utility model.

[0020] Figure 3 It is a schematic diagram of the working state of the internal spline processing device in the utility model.

[0021] Figure 3-1 It is a schematic diagram of the connection structure of the pull nail in the utility model.

[0022] Figure 4 It is a structural schematic diagram of the bevel gear assembly in the utility model.

[0023] Figure 5 It is a structural schematic diagram of the brake disc hub in the utility model.

[0024] Among them, the accompanying drawings are marked as: 1, milling cutter processing part; 11, fixed seat; 2, positioning seat; 21, protection box; 3, limit seat; 4, tool handle; 40, pull nail; 41, driving shaft; 42, bevel gear one; 43, bevel gear two; 44, bevel gear three; 45, bevel gear four; 46, bevel gear five; 5, tool handle limit column; 6, tool seat; 7, internal spline; 8, brake disc hub. DETAILED DESCRIPTION

[0025] In order to more clearly illustrate the technical features of this solution, this solution is described below through specific implementation methods.

[0026] See also Figure 1-Figure 5 , a spline processing device for a brake disc hub product, comprising a machine tool spindle, one end of which is connected to a lathe, the other end of which is connected to one end of a drive shaft 41 through a tool handle 4, and the drive shaft 41 is rotatably connected to a limit seat 3 through a bearing;

[0027] The other end of the driving shaft 41 is connected to a plurality of milling cutter shafts through a bevel gear assembly, the bevel gear assembly is arranged inside the protection box 21, and the milling cutter shafts are rotatably connected to the protection box 21;

[0028] The outer end of the milling cutter shaft is provided with a milling cutter processing portion 1 , which contacts the internal spline 7 on the brake disc hub 8 .

[0029] The bevel gear assembly includes a bevel gear 1 42 coaxially connected to the other end of the driving shaft 41. Bevel gear 1 42 is meshed and connected with bevel gear 2 43, bevel gear 3 44, bevel gear 4 45, and bevel gear 5 46 at the same time. Bevel gear 2 43, bevel gear 3 44, bevel gear 4 45, and bevel gear 5 46 are respectively arranged in a circular array on the outside of bevel gear 1 42.

[0030] The milling cutter shaft is rotatably connected to the positioning seat 2 , and the positioning seat 2 is connected to the outside of the protection box 21 .

[0031] The milling cutter shaft is rotatably connected to the fixing seat 11 , and the fixing seat 11 is connected to the inner side of the protection box 21 .

[0032] More preferably, the outer side of the milling cutter shaft is rotatably connected to the cutter seat 6 , and the cutter seat 6 is fixedly connected to the outer side of the protection box 21 .

[0033] A tool handle limiting column 5 is arranged on the limiting seat 3, and the tool handle limiting column 5 is fixedly connected to the machine tool.

[0034] The outer end of the tool handle 4 is provided with an outer conical surface, and the outer conical surface matches the inner conical hole of the machine tool spindle;

[0035] The outer end of the tool handle 4 is connected with a rivet 40 through a thread, and the rivet 40 is fixedly connected to the free end of the cylinder, and the cylinder is fixedly connected to the inside of the main shaft of the machine tool.

[0036] The specific working process of this utility model:

[0037] Driven by the machine tool spindle, the tool handle 4 is driven to rotate, and the tool handle 4 is fixedly connected to one end of the drive shaft 41, thereby driving the drive shaft 41 to rotate, and through the bevel gear assembly, the four milling cutter shafts are driven to rotate. The four milling cutters 1 rotate at the same time to achieve the cutting process of the internal splines 7 in the brake disc hub 8; the fixing method of the brake disc hub 8 is a conventional mechanical positioning method well known to technicians in this field, which will not be described in detail here.

[0038] It should be noted that this machine tool is a vertical machine tool. The working principle, working process and adjustment method of the vertical machine tool are existing technologies and will not be described in detail here.

[0039] Technical features not described in the present invention can be achieved through or by adopting existing technologies, and will not be elaborated here. Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A device for processing internal splines of brake disc hub products, comprising a machine tool spindle, one end of which is connected to a lathe, characterized in that: The other end of the machine tool spindle is connected to one end of a drive shaft (41) via a tool handle (4), and the drive shaft (41) is rotatably connected to a limit seat (3) via a bearing; The other end of the driving shaft (41) is connected to a plurality of milling cutter shafts via a bevel gear assembly, the bevel gear assembly is arranged inside the protection box (21), and the milling cutter shafts are rotatably connected to the protection box (21); The outer end of the milling cutter shaft is provided with a milling cutter processing portion (1), and the milling cutter processing portion (1) is in contact with an internal spline (7) on a brake disc hub (8).

2. The internal spline processing device for brake disc hub products according to claim 1 is characterized in that: The bevel gear assembly comprises a bevel gear 1 (42) coaxially connected to the other end of the drive shaft (41); the bevel gear 1 (42) is meshedly connected with a bevel gear 2 (43), a bevel gear 3 (44), a bevel gear 4 (45), and a bevel gear 5 (46); the bevel gear 2 (43), the bevel gear 3 (44), the bevel gear 4 (45), and the bevel gear 5 (46) are respectively arranged in an annular array on the outer side of the bevel gear 1 (42).

3. The internal spline processing device for brake disc hub products according to claim 1 is characterized in that: The milling cutter shaft is rotatably connected to a positioning seat (2), and the positioning seat (2) is connected to the outside of the protection box (21).

4. The internal spline processing device for brake disc hub products according to claim 1, characterized in that: The milling cutter shaft is rotatably connected to a fixing seat (11), and the fixing seat (11) is connected to the inner side of the protection box (21).

5. The internal spline processing device for brake disc hub products according to claim 1, characterized in that: A tool handle limiting column (5) is provided on the limiting seat (3), and the tool handle limiting column (5) is fixedly connected to the machine tool.

6. The internal spline processing device for brake disc hub products according to claim 1, characterized in that: The outer end of the tool handle (4) is provided with an outer conical surface, and the outer conical surface cooperates with the inner conical hole of the machine tool spindle; The outer end of the tool handle (4) is connected to a pull nail (40) via a thread, and the pull nail (40) is connected to the free end of a cylinder, and the cylinder is fixedly connected to the inside of the machine tool spindle.

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