Spiral rotor torsion extrusion processing device and processing method

Abstract

The invention discloses a spiral rotor torsion extrusion machining device and method, and relates to the technical field of mechanical plastic forming. The spiral rotor torsion extrusion machining device comprises a workbench, a motor support is installed on one side of the upper surface of the workbench, a motor is installed on the upper surface of the motor support, and the working end of the motor is in transmission connection with an input shaft of a speed reducer; an output shaft of the speed reducer is in transmission connection with the clamping and feeding unit; a sliding rail is fixedly installed on the other side of the upper surface of the workbench, and a through groove is further formed in the other side of the upper surface of the workbench and located in the middle of the sliding rail. A mold extrusion unit is slidably mounted on the sliding rail; a driving unit is installed on the lower surface of the workbench, and the working end of the driving unit drives the die extrusion unit to slide along the sliding rail. The spiral rotor torsion extrusion machining device and method have the advantages of being high in efficiency, low in cost, high in material utilization rate, good in product mechanical performance, high in consistency and the like, and are suitable for batch manufacturing of spiral rotors.

Description

Technical Field

[0001] This invention relates to the field of mechanical plastic forming technology, and in particular to a spiral rotor torsional extrusion processing device and processing method. Background Technology

[0002] Helical rotors typically have complex helical surfaces in their profile. Traditional machining methods for helical rotors mostly employ CNC milling or profile grinding, which suffer from low machining efficiency, high tool wear, and high precision requirements for machine tools. For mass production, there is an urgent need for an efficient and low-cost plastic forming process. Existing extrusion forming technologies struggle to precisely control the rotor's helical angle and the continuity of the torsion process, easily leading to defects such as material folding or incomplete filling.

[0003] Developing a specialized device and method for spiral rotor torsion extrusion processing, capable of achieving continuous, stable, and precise torsion extrusion forming, has become a technical challenge that urgently needs to be addressed by those skilled in the art. Summary of the Invention

[0004] The purpose of this invention is to provide a spiral rotor torsional extrusion processing device and processing method to solve the problems listed in the background art.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a spiral rotor torsional extrusion processing device, comprising a worktable, a motor support mounted on one side of the upper surface of the worktable, a motor mounted on the upper surface of the motor support, the working end of the motor being drivenly connected to the input shaft of a reducer, and the output shaft of the reducer being drivenly connected to a clamping and feeding unit. A slide rail is fixedly installed on the other side of the upper surface of the worktable, and a through groove is also provided on the other side of the upper surface of the worktable, and the through groove is located in the middle of the slide rail; A die extrusion unit is slidably mounted on the slide rail; A drive unit is mounted on the lower surface of the worktable, and the working end of the drive unit drives the mold extrusion unit to slide along the slide rail.

[0006] Preferably, the clamping and feeding unit includes a clamping body, one end of which is connected to the output end of the reducer, and a turntable is mounted on the other end of the clamping body, with claws slidably mounted on the turntable at equal angles. The chuck engages with one end of the spur rotor.

[0007] Preferably, the die extrusion unit includes a bushing support and a bushing, and the lower surface of the bushing support is slidably mounted on the slide rail; The upper surface of the bushing support is movably mounted with a mold via the bushing.

[0008] Preferably, the inner hole of the mold is machined with a female mold cavity with a certain helical angle, and the size of the female mold cavity is consistent with the external size of the helical rotor; The other end of the straight-tooth rotor is installed in the inner hole on one side of the mold. After the processing begins, a helical rotor is formed in the inner hole on the other side of the mold.

[0009] Preferably, the drive unit includes a hydraulic rod and a hydraulic cylinder. The hydraulic cylinder is fixedly installed on the lower surface of the worktable. One end of the hydraulic rod is driven inside the hydraulic cylinder, and the other end of the hydraulic rod is drivenly connected to the bushing support.

[0010] Preferably, the rotation center axis of the clamping body, the cavity center axis of the mold, and the guiding direction of the slide rail are collinear, and the clamping body, the spur tooth rotor, and the axis of the mold are coaxially arranged.

[0011] A processing method for a helical rotor torsional extrusion processing device includes the following steps: Step 1: Clamp the workpiece to be processed. Control the turntable through the clamping body so that the chuck clamps one end of the straight tooth rotor and installs the other end of the straight tooth rotor into the inner hole of the mold. Step 2: Start the motor, and the reducer will drive the jaws on the clamp to rotate the spur rotor at a constant speed. Step 3: Start the hydraulic system. The hydraulic cylinder pushes the mold to the left at a constant speed through the hydraulic rod. The end of the straight tooth rotor is squeezed and formed at the entrance of the spiral surface of the mold. Under the combined action of continuous rotation and axial feeding, each tooth of the straight tooth rotor is gradually squeezed and twisted along the spiral surface of the mold until it completely fills the mold cavity, forming the final spiral rotor. Step 4: The mold retracts and stops rotating, then the finished spiral rotor can be removed and a new spur rotor can be installed for the next processing cycle.

[0012] Compared with the prior art, the beneficial technical effects of the present invention are as follows: This invention discloses a spiral rotor torsional extrusion processing device and method. A motor and reducer drive the clamping body holding the spur rotor to rotate. Simultaneously, a mold with a spiral-shaped inner cavity surface is mounted on a slide rail and driven axially by a hydraulic cylinder. During processing, the spur rotor rotates under the influence of the clamping body, while the mold feeds axially. The combined motion of these two processes causes the spiral surface of the mold to continuously extrude radially and torsionally over the rotating spur rotor, thus forming a high-precision spiral rotor in one step. This replaces the cutting process with a plastic forming process, offering advantages such as high efficiency, low cost, high material utilization, good product mechanical properties, and strong consistency. It is suitable for the mass production of spiral rotors. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] Figure 1 This is a three-dimensional schematic diagram of a spiral rotor torsional extrusion processing device according to the present invention; Figure 2 This is a schematic diagram of the assembly of the die extrusion unit and the drive unit of the present invention; Figure 3 This is a front view schematic diagram of a spiral rotor torsional extrusion processing device according to the present invention.

[0015] Explanation of reference numerals in the attached drawings: 1-Reducer; 2-Motor; 3-Motor support; 4-Worktable; 5-Shaft sleeve support; 6-Slide rail; 7-Spiral rotor; 8-Shaft sleeve; 9-Mold; 10-Straight tooth rotor; 11-Claw; 12-Turntable; 13-Clamping body; 14-Hydraulic rod; 15-Hydraulic cylinder. Detailed Implementation

[0016] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0017] like Figure 1-3 As shown, a spiral rotor torsion extrusion processing device includes a worktable 4, a motor support 3 is installed on one side of the upper surface of the worktable 4, a motor 2 is installed on the upper surface of the motor support 3, the working end of the motor 2 is connected to the input shaft of the reducer 1, and the output shaft of the reducer 1 is connected to the clamping and feeding unit. The reducer is used to provide low-speed, high-torque rotational power. A slide rail 6 is fixedly installed on the other side of the upper surface of the workbench 4. A through groove is also provided on the other side of the upper surface of the workbench 4, and the through groove is located in the middle of the slide rail 6. A die extrusion unit is slidably mounted on the slide rail 6; A drive unit is installed on the lower surface of the worktable 4, and the working end of the drive unit drives the mold extrusion unit to slide along the slide rail 6.

[0018] Specifically, the clamping and feeding unit includes a clamping body 13. One end of the clamping body 13 is connected to the output end of the reducer 1, so that the clamping body can rotate around its own axis under the drive of the reducer. The other end of the clamping body 13 is equipped with a turntable 12, and a chuck 11 is slidably mounted on the turntable 12 at equal angles. The chuck 11 engages with one end of the spur rotor 10, and the relative movement of the chuck is controlled by the rotation of the turntable to complete the clamping and disengagement.

[0019] Specifically, the die extrusion unit includes a bushing support 5 and a bushing 8, and the lower surface of the bushing support 5 is slidably mounted on the slide rail 6; The upper surface of the bushing support 5 is movably mounted with a mold 9 via the bushing 8. The mold can rotate slightly relative to the bushing support to adjust the initial phase or release the torque.

[0020] Specifically, the inner hole of the mold 9 is machined with a female mold cavity with a certain helical angle, and the size of the female mold cavity is consistent with the external size of the helical rotor; The other end of the straight-tooth rotor 10 is installed in the inner hole on one side of the mold 9. After the processing begins, the inner hole on the other side of the mold 9 forms a spiral rotor 7.

[0021] Specifically, the drive unit includes a hydraulic rod 14 and a hydraulic cylinder 15. The hydraulic cylinder 15 is fixedly installed on the lower surface of the worktable 4. One end of the hydraulic rod 14 is driven inside the hydraulic cylinder 15, and the other end of the hydraulic rod 14 is drivenly connected to the bushing support 5, which can drive the bushing support to drive the mold to move precisely in a straight line along the slide rail.

[0022] Specifically, the rotation center axis of the clamping body 13, the cavity center axis of the mold 9, and the guiding direction of the slide rail 6 are collinear, and the clamping body 13, the spur rotor 10, and the mold 9 are coaxially arranged.

[0023] A processing method for a helical rotor torsional extrusion processing device includes the following steps: Step 1: Clamp the workpiece to be processed. Control the turntable through the clamping body so that the chuck clamps one end of the straight tooth rotor and installs the other end of the straight tooth rotor into the inner hole of the mold. Step 2: Start the motor, and the reducer will drive the jaws on the clamp to rotate the spur rotor at a constant speed. Step 3: Start the hydraulic system. The hydraulic cylinder pushes the mold to the left at a constant speed through the hydraulic rod. The end of the straight tooth rotor is squeezed and formed at the entrance of the spiral surface of the mold. Under the combined action of continuous rotation and axial feeding, each tooth of the straight tooth rotor is gradually squeezed and twisted along the spiral surface of the mold until it completely fills the mold cavity, forming the final spiral rotor. Step 4: The mold retracts and stops rotating, then the finished spiral rotor can be removed and a new spur rotor can be installed for the next processing cycle.

[0024] 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 process, method, article, or apparatus.

[0025] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A spiral rotor torsional extrusion processing device, characterized in that: Includes a workbench (4), a motor support (3) is installed on one side of the upper surface of the workbench (4), a motor (2) is installed on the upper surface of the motor support (3), the working end of the motor (2) is connected to the input shaft of the reducer (1) and the output shaft of the reducer (1) is connected to the clamping and feeding unit. A slide rail (6) is fixedly installed on the other side of the upper surface of the workbench (4), and a through groove is also provided on the other side of the upper surface of the workbench (4), and the through groove is located in the middle of the slide rail (6); A die extrusion unit is slidably mounted on the slide rail (6); A drive unit is installed on the lower surface of the worktable (4), and the working end of the drive unit drives the mold extrusion unit to slide along the slide rail (6).

2. The spiral rotor torsional extrusion processing device according to claim 1, characterized in that: The clamping and feeding unit includes a clamping body (13), one end of which is connected to the output end of the reducer (1) for transmission, and a turntable (12) is installed on the other end of the clamping body (13), and a claw (11) is slidably installed on the turntable (12) at equal angles. The claw (11) engages with one end of the spur rotor (10).

3. The spiral rotor torsional extrusion processing device according to claim 2, characterized in that: The die extrusion unit includes a bushing support (5) and a bushing (8), and the lower surface of the bushing support (5) is slidably mounted on the slide rail (6); The upper surface of the bushing support (5) is movably mounted with a mold (9) via the bushing (8).

4. The spiral rotor torsional extrusion processing device according to claim 3, characterized in that: The inner hole of the mold (9) is machined with a female mold cavity with a certain helical angle, and the size of the female mold cavity is consistent with the external size of the helical rotor; The other end of the straight-tooth rotor (10) is installed in the inner hole on one side of the mold (9). After the processing begins, the inner hole on the other side of the mold (9) is formed with a spiral rotor (7).

5. The spiral rotor torsional extrusion processing device according to claim 4, characterized in that: The drive unit includes a hydraulic rod (14) and a hydraulic cylinder (15). The hydraulic cylinder (15) is fixedly installed on the lower surface of the worktable (4). One end of the hydraulic rod (14) is driven inside the hydraulic cylinder (15), and the other end of the hydraulic rod (14) is drivenly connected to the bushing support (5).

6. The spiral rotor torsional extrusion processing device according to claim 5, characterized in that: The rotation center axis of the clamping body (13), the cavity center axis of the mold (9) and the guiding direction of the slide rail (6) are collinear, and the axes of the clamping body (13), the straight tooth rotor (10) and the mold (9) are coaxially arranged.

7. A processing method for a helical rotor torsional extrusion processing device, utilizing the helical rotor torsional extrusion processing device as described in claim 6, characterized in that: Includes the following steps: Step 1: Clamp the workpiece to be processed. Control the turntable through the clamping body so that the chuck clamps one end of the straight tooth rotor and installs the other end of the straight tooth rotor into the inner hole of the mold. Step 2: Start the motor, and the reducer will drive the jaws on the clamp to rotate the spur rotor at a constant speed. Step 3: Start the hydraulic system. The hydraulic cylinder pushes the mold to the left at a constant speed through the hydraulic rod. The end of the straight tooth rotor is squeezed and formed at the entrance of the spiral surface of the mold. Under the combined action of continuous rotation and axial feeding, each tooth of the straight tooth rotor is gradually squeezed and twisted along the spiral surface of the mold until it completely fills the mold cavity, forming the final spiral rotor. Step 4: The mold retracts and stops rotating, then the finished spiral rotor can be removed and a new spur rotor can be installed for the next processing cycle.

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