Driving bevel gear flash cutting device

Abstract

The utility model relates to a driving bevel gear flash cutting device which comprises a lower die base installed on a press machine workbench, an upper die base installed on a press machine piston rod and moving up and down along with stretching and retracting of the piston rod, forming dies which are installed on the upper die base and the lower die base and matched up and down, and a flash removing mechanism installed on one side of each forming die. The flash removing mechanism comprises a pressing block installed on the upper die base, a tool apron installed on the lower die base and an annular cutter installed at the top end of the tool apron, the tool apron is of a hollow cylindrical structure, and the upper end of the tool apron is provided with a circular inserting hole allowing a workpiece to be inserted therein. According to the trimming device, the problems of poor trimming effect and low working efficiency of manual trimming at present are solved, the trimming effect is improved, and the product quality is optimized.

Description

Technical Field

[0001] This utility model relates to the field of active bevel gear manufacturing technology, and in particular to an active bevel gear flash trimming device. Background Technology

[0002] During production, the drive bevel gear needs to be forged by a press and then precision machined on a lathe. Currently, the semi-finished drive bevel gear forged by an open die will have a ring of flash on its umbrella-shaped head. In order not to affect the subsequent processing and the quality of the product, the flash needs to be removed before precision machining. At present, the flash is usually removed by manual grinding, which is time-consuming, labor-intensive, inefficient, and has poor flash removal effect, affecting product quality. Utility Model Content

[0003] This invention addresses the shortcomings of existing technologies by providing an active bevel gear flash-cutting device.

[0004] This utility model is achieved through the following technical solution: providing an active bevel gear flash removal device, including a lower die base installed on the press worktable, an upper die base installed on the press piston rod and moving up and down with the piston rod, a forming mold installed on the upper die base and the lower die base, and a flash removal mechanism installed on one side of the forming mold. The flash removal mechanism includes a pressure block installed on the upper die base, a knife holder installed on the lower die base, and an annular cutter installed on the top of the knife holder. The knife holder is a hollow cylindrical structure with a circular insertion hole for inserting the workpiece at the upper end of the knife holder.

[0005] Preferably, an annular cutter is fixed along the outer periphery of the circular insertion hole. When cutting burrs, the workpiece is vertically inserted into the circular insertion hole, and the burrs at the head of the workpiece rest on the blade of the annular cutter. At this time, the pressure block is moved down by controlling the press. The pressure block presses down on the workpiece, and under the force of the pressure block, the annular cutter cuts off the burrs, and the workpiece falls into the inner cavity of the cutter holder.

[0006] Preferably, the inner diameter of the annular cutter is the same as the diameter of the workpiece head.

[0007] Preferably, in order to facilitate the automatic removal of the workpiece from the inner cavity of the tool holder after the flash has been removed, a discharge port for the workpiece to be removed is provided on the front side of the tool holder.

[0008] Preferably, a guide ramp is provided on the lower die base below the discharge port. A receiving basket is placed below the guide ramp. The workpiece after the flash has been cut falls into the inner cavity of the tool holder, and then automatically slides down into the receiving basket via the guide ramp.

[0009] The beneficial effects of this utility model are as follows:

[0010] 1. This utility model integrates the forming station and the flash trimming station onto the same set of upper and lower mold bases. Controlled by the same press, one set of equipment can complete both forming and flash trimming, reducing production costs. After forming, the workpiece can be quickly transferred to the flash trimming station, greatly improving work efficiency.

[0011] 2. By replacing manual grinding to remove burrs, this utility model improves the burr removal effect and efficiency, and optimizes product quality. Attached Figure Description

[0012] Figure 1 This is a structural schematic diagram of the present invention from one perspective;

[0013] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0014] Figure 3 This is a schematic diagram of the structure of the pressure block and the knife holder of this utility model;

[0015] As shown in the figure:

[0016] 1. Upper mold base, 2. Lower mold base, 3. Forming mold, 4. Press block, 5. Knife holder, 6. Circular cutter, 7. Circular insertion hole, 8. Discharge port, 9. Guide ramp. Detailed Implementation

[0017] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0018] like Figure 1-3 As shown, this utility model includes a lower die holder 2 installed on the press worktable, an upper die holder 1 installed on the press piston rod and moving up and down with the piston rod, a forming die 3 that fits between the upper die holder 1 and the lower die holder 2, and a flash removal mechanism installed on one side of the forming die 3. The forming die 3 adopts an existing structure, the specific structure of which will not be described in detail here.

[0019] The flash removal mechanism includes a pressure block 4 mounted on the upper mold base 1, a knife holder 5 mounted on the lower mold base 2, and a cutter mounted on the top of the knife holder 5. The knife holder 5 is a hollow cylindrical structure with a circular insertion hole 7 at its upper end for inserting the workpiece. The cutter is a ring cutter 6, which is fixed along the outer circumference of the circular insertion hole 7. The inner diameter of the ring cutter 6 is the same as the diameter of the workpiece head. When removing flash, the workpiece is vertically inserted into the circular insertion hole 7, and the flash at the head of the workpiece rests on the blade of the ring cutter 6. At this time, the pressure block 4 is moved downward by controlling the press. The downward movement of the pressure block 4 presses down on the workpiece. Under the force of the pressure block 4, the ring cutter 6 cuts off the flash, and the workpiece falls into the inner cavity of the knife holder 5.

[0020] To facilitate the automatic removal of the workpiece after trimming the flash from the inner cavity of the tool holder 5, a discharge port 8 is provided on the front side of the tool holder 5 for workpiece removal, and a guide ramp 9 is provided on the lower die holder 2 below the discharge port 8. A receiving basket is placed below the guide ramp 9. The workpiece after trimming the flash falls into the inner cavity of the tool holder 5, and then automatically slides down into the receiving basket via the guide ramp 9.

[0021] In the actual operation, the workpiece is first formed by forming mold 3. The operator takes the formed workpiece out of forming mold 3 and inserts it into the circular insertion hole 7. The operator controls the press to move the pressure block 4 down. The pressure block 4 moves down to remove the flash of the workpiece. The workpiece after removing the flash falls into the knife holder 5 and slides out through the discharge port 8, thus completing the flash removal of the workpiece.

[0022] This invention integrates the forming station and the flash trimming station onto the same set of upper mold base 1 and lower mold base 2. Controlled by the same press, one set of equipment can complete both forming and flash trimming, reducing production costs. After forming, the workpiece can be quickly transferred to the flash trimming station, significantly improving work efficiency. This invention solves the problems of poor flash trimming effect and low work efficiency of manual grinding, improving the flash trimming effect and optimizing product quality.

[0023] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A pinching device for involute gear, comprising a lower die holder mounted on a work table of a press, an upper die holder mounted on a piston rod of the press and moving up and down with the piston rod, and a molding die mounted on the upper die holder and the lower die holder in a matching relationship, characterized in that: The flash removing mechanism is installed on one side of the forming die, and comprises a pressing block installed on the upper die base, a cutter seat installed on the lower die base, and an annular cutter installed on the top end of the cutter seat.

2. A bevel gear underfill device as claimed in claim 1, wherein: The annular cutter is fixed along the outer periphery of the circular insertion hole.

3. A bevel gear underfilling device as claimed in claim 1, wherein: The inner hole diameter of the annular cutter is the same as the head diameter of the workpiece.

4. A bevel gear underfill device as claimed in claim 3, wherein: A discharge port for discharging the workpiece is arranged on the front side of the cutter seat.

5. A bevel gear underfill device as claimed in claim 4, wherein: A guide slope is arranged on the lower die base below the discharge port.

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