A nested sprocket production equipment

Abstract

The utility model relates to chain wheel production technical field, and disclose a nested chain wheel production equipment, including tool body, the one end of tool body is fixed with the cutter tip for drilling, the surface of tool body one side is connected with the connecting middle pipe, the inner chamber of tool body is equipped with infusion channel, the connecting middle pipe and infusion channel are connected, the utility model discloses when using, can under the action of connecting middle pipe and infusion channel, make the coolant enter the inner chamber of tool body, and under the action of infusion channel spiral, improve the contact area and contact time of coolant to tool body, improve the heat dissipation capacity to tool body, in addition under the action of external gas pipe and gas supply pipe, make the outside nitrogen high pressure enter the inner chamber of tool body, and under the action of jet head, make gas-liquid two-phase flow in cutter tip instantaneous expansion burst, produce microexplosion shock wave and shake off the adhesion chip, improve the chip removal effect when chain wheel machining.

Description

Technical Field

[0001] This utility model relates to the field of sprocket manufacturing technology, specifically to a nested sprocket manufacturing equipment. Background Technology

[0002] Nested sprockets consist of two or more concentric, separable or combinable sprocket assemblies. One (or more) smaller sprockets (or sprocket assemblies) are embedded, fitted or combined in a certain way within a larger sprocket base or frame, enabling multiple transmission functions within the same axial space. In the production of nested sprockets, drilling, chamfering and tapping are required.

[0003] Since sprockets are commonly made of medium carbon steel or alloy steel, traditional cutting tools produce long and tough chips during cutting, which easily wrap around the tool surface, thus affecting the tool's performance and product quality. Furthermore, the friction between the tool and the material causes the tool to heat up rapidly, which affects the tool's properties and consequently its service life. Utility Model Content

[0004] The purpose of this invention is to provide a nested sprocket production device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a nested sprocket production device, comprising a tool body, one end of which is fixed with a cutting tip for drilling, a connecting tube connected to one side of the surface of the tool body, a liquid infusion channel opened in the inner cavity of the tool body, the connecting tube being connected to the liquid infusion channel, the other end of the liquid infusion channel being connected to a liquid outlet, the liquid outlet being opened on the surface of the cutting tip, a rotary joint provided on the surface of the tool body, an external air pipe connected to one side of the surface of the rotary joint, an air supply pipe connected to the inner cavity of the rotary joint, an air jet head connected to the other end of the air supply pipe, and the air jet head being connected to the liquid outlet.

[0006] Preferably, the infusion channel is spiral-shaped and located away from the axis of the cutter body.

[0007] Preferably, the cross-section of the jet head is conical, and the end with the smaller inner diameter is connected to the liquid outlet.

[0008] Preferably, the external air tube is a flexible tube made of nylon.

[0009] Preferably, the bends in the air supply pipe are rounded.

[0010] Preferably, the connection between the liquid outlet and the cutter body is chamfered.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: In use, this invention allows coolant to enter the inner cavity of the tool body through the connection of the central tube and the liquid delivery channel. The spiral shape of the liquid delivery channel increases the contact area and contact time between the coolant and the tool body, thereby improving the heat dissipation capacity of the tool body. In addition, the external air pipe and air supply pipe allow high-pressure nitrogen gas to enter the inner cavity of the tool body. Under the action of the jet nozzle, the gas-liquid two-phase flow expands and bursts instantaneously at the tip of the tool, generating a micro-explosion shock wave that shakes off the adhering chips, thus improving the chip removal effect during sprocket machining. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the cutter body after it has been cut open in this utility model; Figure 3 This is a partial three-dimensional structural diagram of the present invention; Figure 4 This is a partial three-dimensional structural diagram of the present invention; Figure 5 This utility model Figure 4 A magnified schematic diagram of the local three-dimensional structure at point A.

[0013] In the diagram: 1. Cutting tool body; 2. Cutting tip; 3. Connecting tube; 4. Infusion channel; 5. Infusion port; 6. External air pipe; 7. Rotary joint; 8. Air supply pipe; 9. Air jet head. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-5 As shown, a nested sprocket production equipment includes a tool body 1, one end of which is fixed with a tool tip 2 for drilling, and a connecting tube 3 connected to one side of the surface of the tool body 1. The connecting tube 3 is connected to a lathe and is used to provide coolant.

[0016] The inner cavity of the tool body 1 is provided with a liquid delivery channel 4. The liquid delivery channel 4 is spiral-shaped and is located away from the axis of the tool body 1. When the connecting tube 3 supplies coolant to the liquid delivery channel 4, the spiral shape can increase the residence time of the coolant in the inner cavity of the tool body 1, thereby improving the cooling effect of the coolant on the tool body 1.

[0017] When the tool body 1 is formed, a spiral core can be placed in the inner cavity of the tool body 1. After the tool body 1 is formed, the core vaporizes to form a spiral through hole.

[0018] The connecting tube 3 is connected to the infusion channel 4. The other end of the infusion channel 4 is connected to the outlet hole 5. The outlet hole 5 is opened on the surface of the blade tip 2. The connection between the outlet hole 5 and the blade body 1 is chamfered to make the outer diameter larger. With this setting, when the gas and liquid collide, the liquid spray range can be expanded, thereby improving the chip removal effect.

[0019] The surface of the cutter body 1 is provided with a rotary joint 7. One side of the surface of the rotary joint 7 is connected to an external air pipe 6. The external air pipe 6 is a flexible hose made of nylon, which facilitates the connection between the external air pipe 6 and an external air pump, thereby improving the practicality of the device. The inner cavity of the rotary joint 7 is connected to an air supply pipe 8. The bend of the air supply pipe 8 is rounded. Through this design, the friction between the gas and the air supply pipe 8 can be reduced under the action of bending, thereby increasing the speed of gas passage.

[0020] The other end of the air supply pipe 8 is connected to a jet head 9. The cross-section of the jet head 9 is conical, and the end with the smaller inner diameter is connected to the liquid outlet 5. The jet head 9 sprays at an offset angle of 15°. This setting allows the gas to pass through the jet head 9, which can increase the gas flow rate and thus allow the gas to impact the liquid, causing instantaneous expansion and bursting, shaking off the adhering chips. The jet head 9 is connected to the liquid outlet 5.

[0021] Working principle: Under the action of connecting tube 3 and liquid delivery channel 4, coolant enters the inner cavity of tool body 1. Under the spiral action of liquid delivery channel 4, the contact area and contact time of coolant with tool body 1 are increased, thereby improving the heat dissipation capacity of tool body 1. In addition, under the action of external air pipe 6 and air supply pipe 8, high-pressure nitrogen gas from the outside enters the inner cavity of tool body 1. Under the action of jet nozzle 9, the gas-liquid two-phase flow expands and bursts instantaneously at the tool tip, generating micro-explosion shock wave to shake off the adhering chips, thereby improving the chip removal effect during sprocket machining.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A nested sprocket production device, comprising a tool body (1), characterized in that: One end of the tool body (1) is fixed with a cutting tip (2) for drilling. A connecting tube (3) is connected to one side of the surface of the tool body (1). An infusion channel (4) is opened in the inner cavity of the tool body (1). The connecting tube (3) is connected to the infusion channel (4). The other end of the infusion channel (4) is connected to an outlet hole (5). The outlet hole (5) is opened on the surface of the cutting tip (2). A rotary joint (7) is provided on the surface of the tool body (1). An external air pipe (6) is connected to one side of the surface of the rotary joint (7). An air supply pipe (8) is connected to the inner cavity of the rotary joint (7). An air jet head (9) is connected to the other end of the air supply pipe (8). The air jet head (9) is connected to the outlet hole (5).

2. The nested sprocket production equipment according to claim 1, characterized in that: The infusion channel (4) is spiral-shaped and located away from the axis of the cutter body (1).

3. The nested sprocket production equipment according to claim 1, characterized in that: The cross-section of the jet head (9) is conical, and the end with the smaller inner diameter is connected to the liquid outlet (5).

4. The nested sprocket production equipment according to claim 1, characterized in that: The external air tube (6) is a flexible tube made of nylon.

5. The nested sprocket production equipment according to claim 1, characterized in that: The bends in the gas supply pipe (8) are rounded.

6. The nested sprocket production equipment according to claim 1, characterized in that: The connection between the liquid outlet (5) and the cutter body (1) is chamfered.

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