Cutter for vacuum pump rotor

Abstract

The invention relates to the technical field of machine tool accessories, and particularly discloses a cutter for a vacuum pump rotor, which comprises a cutter body, the cutter bodies are symmetrically arranged at the two ends of the cutter body; each cutter body comprises an upper cutter surface and a lower cutter surface which extend in the length direction of the upper and lower surfaces of the cutter body; the left cutter face and the right cutter face extend in the length direction of the left surface and the right surface of the cutter body; the front cutter surface is connected with the upper cutter surface, the lower cutter surface, the left cutter surface and the right cutter surface; wherein the left knife face is gradually sunken from the upper end and the lower end to the middle to form a first groove, the first groove extends to the knife body, the right knife face is arranged in an inclined mode, two prismatic protrusions are arranged on the right knife face, and the protrusions extend in the length direction of the knife body. The turning tool structure is adopted, linear turning of the rotor is achieved, and the machining efficiency can be improved.

Description

Technical Field

[0001] This invention relates to the field of machine tool accessories technology, specifically a cutting tool for a vacuum pump rotor. Background Technology

[0002] As the core component of a vacuum pump, the vacuum pump rotor has a complex profile, and its machining accuracy directly determines the pump's vacuum level, sealing performance, and operational stability. The machining tools are crucial for ensuring the quality of rotor machining. Currently, rotor machining largely relies on CNC milling machines, employing milling processes. These processes are complex, resulting in high labor costs and failing to meet the demands of mass production. Therefore, improving rotor machining efficiency is a problem that needs to be addressed. Summary of the Invention

[0003] The purpose of this invention is to provide a cutting tool for a vacuum pump rotor to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: a cutting tool for a vacuum pump rotor, comprising a cutting tool body, wherein the cutting tool body comprises: Blade; A blade body symmetrically arranged at both ends of the blade, the blade body comprising: The upper and lower cutting surfaces extend along the length of the upper and lower surfaces of the blade; The left and right blade surfaces extend along the length of the left and right surfaces of the blade. The front face that connects to the upper cutting face, lower cutting face, left cutting face, and right cutting face; The left blade face gradually concaves from the top and bottom ends toward the middle to form a first groove, which extends to the blade body. The right blade face is inclined and has two prismatic protrusions that extend along the length of the blade body.

[0005] Furthermore, the right side of the blade has an inwardly facing second groove, the two ends of the second groove in the length direction extend towards the right blade surface and gradually narrow, the protrusion extends into the second groove, and the two ends of the second groove in the length direction are located between the two protrusions.

[0006] Furthermore, the protrusion includes a bottom surface disposed on the right cutting surface, the bottom surface extending outward to form two side surfaces, a top surface forming between the two side surfaces, a front surface forming between the two side surfaces and the top surface, and the front surface extending to the front cutting surface.

[0007] Furthermore, the front surface is curved, the side surface is sloping, and the front surface is straight.

[0008] Furthermore, the rake face is a straight surface.

[0009] Furthermore, the distance between the upper and lower surfaces of the blade gradually decreases from the left blade surface to the right blade surface, and the connection between the blade and the upper and lower blade surfaces has a height difference and forms a stepped surface.

[0010] Furthermore, it also includes a tool holder, which includes a base plate and a clamping plate disposed on one side of the base plate, the clamping plate being used to clamp the tool body.

[0011] Furthermore, the free end of the clamping plate has a clamping opening, and a left clamping plate and a right clamping plate are formed on both sides of the clamping opening. A clamping hole is provided on one side of the bottom of the clamping opening, and the clamping hole extends to the right clamping plate. The clamping hole allows relative movement between the left clamping plate and the right clamping plate.

[0012] Furthermore, the bottom of the clamping opening is provided with two inwardly recessed grooves, and a gap is formed between the grooves and the tool body.

[0013] Furthermore, the right clamp is provided with a first locking hole, and the left clamp is provided with a second locking hole. The locking member passes through the first locking hole and then through the second locking hole to fix the left clamp and the right clamp.

[0014] The present invention has the following beneficial effects: This invention employs a turning tool structure, changing the traditional milling machining mode to achieve linear turning machining of the rotor, thereby improving machining efficiency.

[0015] This invention features a multi-bladed cutting design with raised edges, which, compared to traditional single-bladed tools, allows for a larger single-cutting coverage area, reducing the number of machining passes. The groove structure also reduces cutting resistance and heat generation, and forms a chip removal and heat dissipation channel between the tool and the tool holder.

[0016] This invention reduces chip accumulation during cutting by using the specific shapes of each cutting surface of the tool, thereby reducing the risk of scratches and burrs on the rotor surface and improving the surface finish of the tooth / curved surface.

[0017] The present invention facilitates installation and fixation, and also facilitates chip removal, through the structure of the cutting tool and tool holder. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the cutting tool for a vacuum pump rotor in Example 1; Figure 2 for Figure 1 An enlarged schematic diagram of the tool body; Figure 3 for Figure 2 A diagram from another perspective; Figure 4 for Figure 2 A side view; Figure 5 for Figure 1 An enlarged schematic diagram of the tool holder. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1 like Figures 1-5 As shown, the cutting tool for the vacuum pump rotor in this embodiment includes a tool body 1, a tool holder 30 for clamping the tool body 1, and a connecting seat 40 connecting the tool holder 30 and the lathe.

[0022] The tool body 1 is used on a lathe and is mainly composed of a tool body 10 and tool bodies 20 symmetrically arranged at both ends of the tool body 10. The two tool bodies 20 can be used at both ends.

[0023] Specifically, the blade body 20 includes an upper blade surface 21 and a lower blade surface extending along the length direction of the upper and lower surfaces of the blade body 10, a left blade surface 23 and a right blade surface 24 extending along the length direction of the left and right surfaces of the blade body 10, and a front blade surface 25 connected to the upper blade surface 21, the lower blade surface, the left blade surface 23 and the right blade surface 24. The front blade surface 25 is a straight surface.

[0024] Furthermore, the left blade surface 23 gradually recesses from the upper and lower ends toward the middle to form a first groove 231, the first groove 231 extending to the blade body 10, the right blade surface 24 is inclined, and the right blade surface 24 is provided with two prismatic protrusions 26, the protrusions 26 extending along the length direction of the blade body 10.

[0025] Additionally, the blade 10 has an inwardly extending second groove 11 on its right side. The two ends of the second groove 11 extend toward the right blade surface 24 in the length direction and gradually narrow. The protrusion 26 extends to the second groove 11, and the two ends of the second groove 11 in the length direction are located between the two protrusions 26.

[0026] The protrusion 26 includes a bottom surface disposed on the right blade face 24. The bottom surface extends outward to form two side surfaces 261. A top surface 262 is formed between the two side surfaces 261 and the top surface 262. A front surface 263 is formed between the two side surfaces 261 and the top surface 262. The front surface 263 extends to the front blade face 25. The front surface 263 is an arc surface, the side surfaces 261 are inclined surfaces, and the front surface 263 is a straight surface.

[0027] Furthermore, the distance between the upper and lower surfaces of the blade 10 gradually decreases from the left blade surface 23 to the right blade surface 24, and the connection between the blade 10 and the upper blade surface 21 and the lower blade surface has a height difference and forms a stepped surface 12.

[0028] In addition, the tool holder 30 includes a base plate 31 and a clamping plate 32 disposed on one side of the base plate 31, the clamping plate 32 being used to clamp the tool body 1.

[0029] The free end of the clamping plate 32 has a clamping opening 320, and a left clamping plate 321 and a right clamping plate 322 are formed on both sides of the clamping opening 320. A clamping hole 323 is provided on one side of the bottom of the clamping opening 320. The clamping hole 323 extends to the right clamping plate 322, and the clamping hole 323 allows relative movement between the left clamping plate 321 and the right clamping plate 322.

[0030] The bottom of the clamping opening 320 is provided with two inwardly recessed grooves 324, and the grooves 324 form a gap with the tool body 1.

[0031] The right clamping plate 322 is provided with a first locking hole 325, and the left clamping plate 321 is provided with a second locking hole 326. The locking member 327 passes through the first locking hole 325 and the second locking hole 326 to fix the left clamping plate 321 and the right clamping plate 322, thereby fixing the tool body 1 in the clamping opening 320. The left clamping plate 321, the right clamping plate 322 and the two left and right sides of the tool body 1 cooperate with the first groove 231 and the second groove 11 to form a heat dissipation and chip removal gap.

[0032] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A cutting tool for a vacuum pump rotor, comprising a cutting tool body, characterized in that, The tool body includes: Blade; A blade body symmetrically arranged at both ends of the blade, the blade body comprising: The upper and lower cutting surfaces extend along the length of the upper and lower surfaces of the blade; The left and right blade surfaces extend along the length of the left and right surfaces of the blade. The front face that connects to the upper cutting face, lower cutting face, left cutting face, and right cutting face; The left blade face gradually concaves from the top and bottom ends toward the middle to form a first groove, which extends to the blade body. The right blade face is inclined and has two prismatic protrusions that extend along the length of the blade body.

2. The cutting tool for a vacuum pump rotor according to claim 1, characterized in that: The blade has an inward second groove on the right side. The two ends of the second groove in the length direction extend towards the right blade surface and gradually narrow. The protrusion extends into the second groove, and the two ends of the second groove in the length direction are located between the two protrusions.

3. A cutting tool for a vacuum pump rotor according to claim 2, characterized in that: The protrusion includes a bottom surface disposed on the right cutting surface, the bottom surface extending outward to form two side surfaces, a top surface forming between the two side surfaces, a front surface forming between the two side surfaces and the top surface, and the front surface extending to the front cutting surface.

4. A cutting tool for a vacuum pump rotor according to claim 3, characterized in that: The front is curved, the side is sloping, and the front is straight.

5. A cutting tool for a vacuum pump rotor according to claim 1, characterized in that: The rake face is a straight surface.

6. A cutting tool for a vacuum pump rotor according to claim 1, characterized in that: The distance between the upper and lower surfaces of the blade gradually decreases from the left blade surface to the right blade surface, and the connection between the blade and the upper and lower blade surfaces has a height difference and forms a stepped surface.

7. A cutting tool for a vacuum pump rotor according to claim 1, characterized in that: It also includes a tool holder, which includes a base plate and a clamping plate disposed on one side of the base plate, the clamping plate being used to clamp the tool body.

8. A cutting tool for a vacuum pump rotor according to claim 7, characterized in that: The free end of the clamping plate has a clamping opening, and a left clamping plate and a right clamping plate are formed on both sides of the clamping opening. A clamping hole is provided on one side of the bottom of the clamping opening, and the clamping hole extends to the right clamping plate. The clamping hole allows relative movement between the left clamping plate and the right clamping plate.

9. A cutting tool for a vacuum pump rotor according to claim 8, characterized in that: The bottom of the clamping opening is provided with two inwardly recessed grooves, and a gap is formed between the grooves and the tool body.

10. A cutting tool for a vacuum pump rotor according to claim 8, characterized in that: The right clamp is provided with a first locking hole, and the left clamp is provided with a second locking hole. The locking member passes through the first locking hole and then through the second locking hole to fix the left clamp and the right clamp.

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