Driving gear blank

Abstract

A driving gear blank is integrally formed and comprises a conical upper die area and a conical lower die area, the upper die area corresponds to a gear tooth area of a driving gear, the lower die area corresponds to a stepped shaft area of the driving gear, and one section of the lower die area is a cylindrical body. The gravity center of the driving gear blank is located in the cylindrical body. Compared with the prior art, the utility model has the technical effects that one section of the lower die area is designed into the columnar surface, so that the lower die area can be conveniently matched with a clamping hand, the contact between the clamping hand and a blank body is actually similar to linear contact, and the clamping hand is not easy to fall off.

Description

TECHNICAL FIELD

[0001] The utility model belongs to gear processing technical field, and specifically relates to a driving gear blank. BACKGROUND

[0002] For example, Figure 1 The driving gear comprises a tooth area 91 on the upper portion and a stepped shaft area 92 on the lower portion. During the processing of the driving gear, a steel column is heated to form a driving gear blank, and the driving gear blank is then machined to become a finished driving gear.

[0003] For example, Figure 2 In order to facilitate demolding, the driving gear blank comprises an upper die area 81 corresponding to the tooth area 91 and a lower die area 82 corresponding to the stepped shaft area 92, and a transition area 83 is formed between the upper die area 81 and the lower die area 82. Both the upper die area 81 and the lower die area 82 are conical. SUMMARY

[0004] The utility model solves the technical problem that, during the transfer of the driving gear blank, a gripper is generally used for clamping. Since the clamping surface of the gripper is a columnar surface, the gripper is in contact with a certain ring line of the blank during the clamping process, the contact area is small, and the blank is very easy to fall off.

[0005] The technical scheme of the utility model is as follows:

[0006] A driving gear blank is integrally formed and comprises a conical upper die area and a conical lower die area. The upper die area corresponds to a tooth area of the driving gear, and the lower die area corresponds to a stepped shaft area of the driving gear. One section of the lower die area is a columnar body.

[0007] The center of gravity of the driving gear blank is located in the columnar body.

[0008] Compared with the prior art, the utility model has the technical effect that one section of the lower die area is designed as a columnar surface, which facilitates cooperation with the gripper. The contact between the gripper and the blank is actually similar to linear contact, and the blank is not easy to fall off. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 is a schematic view of the prior art (one).

[0010] Figure 2 is a schematic view of the prior art (two).

[0011] Figure 3 is a schematic view of the utility model.

[0012] DETAILED DESCRIPTION

[0013] The utility model will be described in detail below in combination with the drawings and the specific implementation mode.

[0014] For example,Figure 3 A driving gear blank is integrally formed, comprising a conical upper die area 1 corresponding to the tooth area of the driving gear and a lower die area 2 corresponding to the stepped shaft area of the driving gear, a transition area 3 between the upper die area 1 and the lower die area 2, and a columnar body 4 in one section of the lower die area 2.

[0015] In order to facilitate cooperation with the gripper, the center of gravity of the driving gear blank is located in the columnar body 4, the length of the columnar body 4 is matched with the gripper, and is generally 2-3 cm.

[0016] The working principle is as follows:

[0017] When clamping, the gripper can clamp the columnar body 4 of the driving gear blank, the contact area between the gripper and the columnar body 4 is increased, and the driving gear blank is facilitated to move.

[0018] The characteristics of the present application are as follows:

[0019] S1, the present application designs a columnar surface in one section of the lower die area, the contact area between the gripper and the columnar body 4 is increased, and the driving gear blank is facilitated to move.

[0020] S2, after the columnar surface is provided, a part of raw materials is consumed.

[0021] S3, demolding of the lower die area is increased in difficulty.

[0022] Although the present application has some disadvantages (consumption of raw materials and increased difficulty in demolding), they can be overcome, and compared with stable clamping, the present application is more convenient for cooperation with the gripper of the robot and is helpful for large-scale production.

[0023] Other contents refer to the prior art.

[0024] The above is only the preferred embodiment of the present application, and it should be pointed out that for those skilled in the art, without departing from the overall concept of the present application, some changes and improvements can be made, which should also be considered as the protection range of the present application.

Claims

1. A driving gear blank, which is integrally formed and comprises a conical upper die area (1) and a lower die area (2), wherein the upper die area (1) corresponds to the gear tooth area of ​​the driving gear and the lower die area (2) corresponds to the stepped shaft area of ​​the driving gear, and is characterized in that: One section of the lower mold area (2) is a columnar body (4).

2. The driving gear blank according to claim 1, characterized in that: The center of gravity of the driving gear blank is located inside the cylindrical body (4).

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