Efficient machining turning tool for screw rod

Abstract

The invention relates to the technical field of machine tool accessories, and particularly discloses an efficient screw machining turning tool which comprises a tool 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 face is connected with the upper cutter face, the lower cutter face, the left cutter face and the right cutter face, and the front cutter face is in a convex arc shape. Wherein the right cutter face is provided with two cylindrical protrusions, and the protrusions extend in the width direction of the cutter body. Lathe machining of the screw rotor is realized, and the machining efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of machine tool accessories technology, specifically to a high-efficiency turning tool for screw machining. 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 high-efficiency machining tool for screws, so as 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 high-efficiency screw machining turning tool, comprising a tool body, wherein 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 cutting face is connected to the upper cutting face, lower cutting face, left cutting face, and right cutting face, and the front cutting face is an outwardly convex arc shape.

[0005] The right blade has two cylindrical protrusions that extend along the width of the blade.

[0006] Furthermore, the left blade surface gradually concaves from both the upper and lower ends toward the middle to form a first groove, which extends to the blade body.

[0007] Furthermore, the right side of the blade has an inward second groove, the two ends of the second groove in the length direction extend towards the right blade surface and gradually narrow, and a first base surface, a second base surface, a third base surface and a fourth base surface are formed on the right blade surface.

[0008] Furthermore, the first base surface and the second base surface are disposed opposite each other and located on the upper and lower sides of the end of the second groove, the third base surface is connected to the end of the first base surface, the second base surface and the second groove, the fourth base surface is connected to the third base surface, and the protrusion is disposed on the fourth base surface.

[0009] Furthermore, the first base surface, the second base surface, the third base surface, and the fourth base surface are all recessed from the edge towards the center, and the junction of the first base surface, the second base surface, the third base surface, and the second groove forms a first apex, a second apex, and a third apex.

[0010] 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.

[0011] 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.

[0012] 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.

[0013] 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.

[0014] 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.

[0015] The present invention has the following beneficial effects: This invention employs a turning tool structure, changing the traditional milling machining mode. By utilizing the five-axis turning function, it achieves linear turning machining of the screw rotor, thereby improving machining efficiency.

[0016] This invention, through its multi-faceted and raised structure, can precisely match the key structures of the screw rotor, such as the slot shape and meshing surface, to achieve multi-blade synchronous cutting, reduce the ineffective contact area between the tool and the workpiece, lower cutting resistance, and facilitate rapid chip removal, thus avoiding the impact of chip accumulation on machining continuity.

[0017] This invention can accurately locate the cutting trajectory by using the specific shape of each cutting surface of the tool, ensuring that the machining error of the profile is controlled within a reasonable range, and concentrating the cutting stress on the raised cutting edge, thereby reducing the overall stress on the tool and lowering the risk of tool breakage.

[0018] 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

[0019] 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.

[0020] Figure 1 This is a schematic diagram of the high-efficiency screw machining tool of 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 1 An enlarged schematic diagram of the tool holder. Detailed Implementation

[0021] 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.

[0022] Example 1 like Figures 1-4 As shown, the high-efficiency screw machining tool 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.

[0023] 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.

[0024] 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 convex arc surface.

[0025] Additionally, the left blade surface 23 gradually recesses from the upper and lower ends toward the middle to form a first groove 231, which extends to the blade body 10.

[0026] The blade 10 has an inward second groove 11 on the right side. The two ends of the second groove 11 extend towards the right blade surface 24 and gradually narrow. A first base surface 241, a second base surface 242, a third base surface 243 and a fourth base surface 244 are formed on the right blade surface 24.

[0027] The first base surface 241 and the second base surface 242 are disposed opposite each other and located on the upper and lower sides of the end of the second groove 11. The third base surface is connected to the end of the first base surface 241, the second base surface 242 and the second groove 11. The fourth base surface 244 is connected to the third base surface 243. The protrusion 26 is disposed in the middle of the fourth base surface 244. The first base surface 241, the second base surface 242, the third base surface and the fourth base surface 244 are all recessed from the edge to the center. The first base surface 241, the second base surface 242, the third base surface 243 and the second groove 11 form a first apex 101, a second apex 102 and a third apex 103, and the three apex are arrow-shaped.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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 high-efficiency turning tool for screw machining, comprising a 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 cutting face is connected to the upper cutting face, lower cutting face, left cutting face, and right cutting face, and the front cutting face is an outwardly convex arc shape.

2. The right blade surface is provided with two cylindrical protrusions, which extend along the width direction of the blade body.

3. The high-efficiency screw machining tool according to claim 1, characterized in that: The left blade surface gradually concaves from both the top and bottom ends toward the middle to form a first groove, which extends to the blade body.

4. The high-efficiency screw machining tool according to claim 2, characterized in that: The blade has an inward second groove on its right side. The two ends of the second groove extend towards the right blade surface and gradually narrow. A first base surface, a second base surface, a third base surface, and a fourth base surface are formed on the right blade surface.

5. The high-efficiency screw machining tool according to claim 3, characterized in that: The first base surface and the second base surface are disposed opposite each other and located on the upper and lower sides of the end of the second groove. The third base surface is connected to the end of the first base surface, the second base surface and the second groove. The fourth base surface is connected to the third base surface. The protrusion is disposed on the fourth base surface.

6. The high-efficiency screw machining tool according to claim 4, characterized in that: The first base surface, the second base surface, the third base surface, and the fourth base surface are all recessed from the edge towards the center, and the first apex, the second apex, and the third apex are formed at the junction of the first base surface, the second base surface, the third base surface and the second groove.

7. The high-efficiency screw machining tool 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.

8. The high-efficiency screw machining tool 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.

9. A high-efficiency screw machining tool 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.

10. A high-efficiency screw machining tool 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.

11. A high-efficiency screw machining tool 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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