Eccentric machining method and eccentric machining device for rotating parts

Abstract

The present invention discloses an eccentric processing method and an eccentric processing device for rotating parts. The eccentric processing method comprises: a fixing step: mounting the rotating part to be processed on a clamping assembly, and fixing the rotating part by the clamping assembly; an initial eccentricity adjustment step: driving the clamping assembly to move by adjusting the eccentric assembly so that the rotating part is in an initial position with an initial eccentricity; a final eccentricity adjustment step: driving the clamping assembly to move by adjusting the eccentric assembly again so that the rotating part is in a processing position with a final eccentricity; a processing step: processing the rotating part according to the final eccentricity at the processing position; the present invention is beneficial to improving the efficiency of mass processing of workpieces with non-coincident axes similar to crankshafts.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical processing, and in particular to an eccentric processing method and an eccentric processing device for processing an eccentric circle on a rotating part through a lathe. Background Art

[0002] Existing rotating parts, such as crankshafts, may have rotating structures, such as holes and cavities, that are a certain distance away from the rotation axis of the original rotating parts. If they are to be machined and aligned on a lathe, it will be a big problem because the reference axis is not uniform, and one of the rotating axes will inevitably deviate from the rotation axis of the lathe spindle, making it impossible to machine. The usual practice is to machine one rotating structure in the part, and then re-clamp it by adjusting the chuck jaws, plugging gaskets, etc. to machine another rotating structure. In this process, repeated adjustments and measurements are required, and re-clamping is required, resulting in low efficiency and low quality. In addition, the general tooling or equipment used to machine such parts either has an unadjustable eccentricity or an inaccurate adjustment method, which is time-consuming and even requires measurement and calibration after adjustment, resulting in low efficiency and quality.

[0003] Therefore, it is urgent to develop an eccentric machining method and an eccentric machining device for a rotating body part that can overcome the above-mentioned defects. Summary of the Invention

[0004] In view of the above problems, the present invention provides an eccentric machining method for a rotating part, which comprises:

[0005] Fixing step: mounting the rotating part to be processed on a clamping assembly, and fixing the rotating part by the clamping assembly;

[0006] Initial eccentricity adjustment step: adjusting the eccentric assembly to drive the clamping assembly to move so that the rotating part is in an initial position with an initial eccentricity;

[0007] Final eccentricity adjustment step: re-adjusting the eccentric assembly to drive the clamping assembly to move so that the rotating part is in a processing position with a final eccentricity;

[0008] Processing step: processing the rotating part at the processing position according to the final eccentricity.

[0009] In the above-mentioned eccentric processing method, the fixing step includes:

[0010] Mounting the rotating part on a three-jaw chuck, and clamping the rotating part by the three-jaw chuck;

[0011] The three-jaw chuck and the eccentric assembly are connected via a connecting rod.

[0012] In the above-mentioned eccentric machining method, the initial eccentricity determination step includes:

[0013] Fixing a chassis on a lathe chuck and connecting it to the connecting rod;

[0014] An eccentric disk is rotatably mounted on the chassis;

[0015] The eccentric disk is rotated to drive the connecting rod to move through the involute annular groove provided on the eccentric disk. When an initial eccentricity scale line of the eccentric disk is located at a marked scale line of the chassis, the rotating body part is in the initial position.

[0016] In the above-mentioned eccentric machining method, the final eccentricity determination step includes:

[0017] The eccentric disk is rotated to drive the connecting rod to continue moving through the involute annular groove provided on the eccentric disk. When an eccentric distance scale line of the eccentric disk is located at the marked scale line of the chassis, the rotating part is in the processing position, and the eccentric distance corresponding to the eccentric distance scale line is the final eccentric distance of the rotating part to be processed.

[0018] The present invention also provides an eccentric machining device for a rotating part, comprising:

[0019] A clamping assembly, used to clamp and fix the rotating parts to be processed;

[0020] An eccentric assembly is mounted on a lathe chuck, and the clamping assembly is movably connected to the eccentric assembly. The eccentric assembly is adjusted to drive the clamping assembly to move so that the rotating part is in an initial position with an initial eccentricity, and then the eccentric assembly is adjusted again to drive the clamping assembly to move so that the rotating part is in a processing position with a final eccentricity.

[0021] The above-mentioned eccentric machining device, wherein the clamping assembly includes:

[0022] A three-jaw chuck for clamping the rotating part;

[0023] A connecting rod connects the three-jaw chuck and the eccentric assembly.

[0024] The above-mentioned eccentric machining device, wherein the connecting rod comprises:

[0025] a first cylindrical pin, one end of the connecting rod being movably connected to the eccentric assembly, one end of the first cylindrical pin being mounted on a side surface of the other end of the connecting rod and being slidably connected to the eccentric assembly;

[0026] A connecting flange is arranged opposite to the first cylindrical pin and is installed on the other side surface of the other end of the connecting rod, and the connecting flange is connected to the three-jaw chuck.

[0027] The above-mentioned eccentric processing device, wherein the eccentric component includes:

[0028] A chassis is mounted on a lathe chuck, and one end of the connecting rod is movably connected to the chassis;

[0029] The eccentric disk is rotatably mounted on the chassis. An involute ring groove is provided on the eccentric disk. The other end of the first cylindrical pin is located in the involute ring groove. The eccentric disk is rotated to push the first cylindrical pin through the two side surfaces of the involute ring groove to drive the connecting rod to move.

[0030] The above-mentioned eccentric processing device, wherein a first connecting hole and a second connecting hole are provided on the chassis, one end of the connecting rod is movably connected to the first connecting hole, the eccentric disk has two side surfaces arranged opposite to each other, a second cylindrical pin is provided on one of the two side surfaces, the second cylindrical pin is installed in the second connecting hole, and a boss is provided on the other of the two side surfaces, and a through hole is provided on the boss.

[0031] The above-mentioned eccentric processing device, wherein a marking scale line is provided on the circumferential surface of the chassis, and an initial eccentricity scale line and multiple eccentricity scale lines are arranged on the circumferential surface of the eccentric disk. When the initial eccentricity scale line pair is located at the marking scale line, the rotating body part is in the initial position, and the eccentricity corresponding to the initial eccentricity scale line is the initial eccentricity of the rotating body part. When the eccentricity scale line pair is located at the marking scale line, the rotating body part is in the processing position, and the eccentricity corresponding to the eccentricity scale line is the final eccentricity of the rotating body part to be processed.

[0032] The present invention has the following advantages over the prior art:

[0033] 1. The present invention utilizes the involute groove on one side of the eccentric disk through the rotational motion of the eccentric disk to drive the connecting rod to make a linear motion away from or close to the chassis axis, thereby driving the workpiece in the chuck with a non-coinciding axis similar to a crankshaft to move, and adjusting the axis of the workpiece processing surface to coincide with the motion axis of the lathe spindle. This is convenient and quick, and is beneficial to improving the efficiency of mass processing of workpieces with non-coinciding axes similar to crankshafts.

[0034] 2. The present invention accurately adjusts the eccentric distance through the scale of the circumference of the eccentric disk, saving the time of verifying the workpiece processing benchmark after adjusting the eccentric distance.

[0035] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0037] Figure 1 is a flow chart of the eccentric machining method of the present invention;

[0038] Figure 2 It is a structural schematic diagram of the eccentric machining device of the present invention;

[0039] Figure 3 is a schematic diagram of the initial position;

[0040] Figure 4 It is a schematic diagram of the processing position;

[0041] Figure 5 It is a schematic diagram of the connection between the chassis and the eccentric disc;

[0042] Figure 6 Schematic diagram of the connection between the chassis and the clamping assembly. DETAILED DESCRIPTION

[0043] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0044] The exemplary embodiments of the present invention and their description are used to explain the present invention, but are not intended to limit the present invention. In addition, elements / components with the same or similar reference numerals used in the drawings and embodiments are used to represent the same or similar parts.

[0045] The terms “first,” “second,” “S1,” “S2,” etc. used herein do not specifically refer to an order or sequence, nor are they intended to limit the present invention. They are merely used to distinguish elements or operations described with the same technical terms.

[0046] The directional terms used herein, such as up, down, left, right, front, or back, are only used to refer to the directions in the accompanying drawings. Therefore, the directional terms used are used to illustrate and not to limit the present invention.

[0047] The words “include,” “including,” “have,” “contain,” etc. used in this document are open-ended terms, meaning including but not limited to.

[0048] As used herein, "and / or" includes any and all combinations of the items mentioned.

[0049] Regarding "plurality" in this document, "plurality" includes "two" and "more than two"; regarding "plurality groups" in this document, "plurality groups" includes "two groups" and "more than two groups".

[0050] Certain terms used to describe the present application are discussed below, or elsewhere in this specification, to provide additional guidance to those skilled in the art regarding the description of the present application.

[0051] See also Figure 1-Figure 2 , Figure 1 is a flow chart of the eccentric machining method of the present invention; Figure 2 The figure is a schematic diagram of the structure of the eccentric machining device of the present invention. A rotating part needs to be machined with multiple eccentric circles of different eccentric distances, such as a crankshaft. Figure 1-Figure 2 As shown, the present invention provides an eccentric machining method for a rotating part, comprising:

[0052] Fixing step S1: mounting the rotating part to be processed on a clamping assembly 1, and fixing the rotating part by the clamping assembly 1;

[0053] Initial eccentricity adjustment step S2: adjusting the eccentric assembly 2 to drive the clamping assembly 1 to move so that the rotating part is in an initial position P1 with an initial eccentricity;

[0054] Final eccentricity adjustment step S3: adjusting the eccentric assembly again to drive the clamping assembly to move so that the rotating part is in a processing position P2 with a final eccentricity;

[0055] Processing step S4: processing the rotating part at the processing position P2 according to the final eccentricity.

[0056] The fixing step S1 includes: mounting the rotating part on a three-jaw chuck 11 , clamping the rotating part by the three-jaw chuck 11 ; and connecting the three-jaw chuck 11 and the eccentric assembly 2 by a connecting rod 12 .

[0057] Among them, the initial eccentricity determination step S2 includes: fixing a chassis 21 on a lathe chuck and connecting it to the connecting rod 12; rotatably installing an eccentric disk 22 on the chassis 21; rotating the eccentric disk 22 to drive the connecting rod 12 to move through the involute annular groove 221 opened on the eccentric disk 22, and when an initial eccentricity scale line L0 of the eccentric disk 22 is located at a marked scale line L on the chassis 21, the rotating body part is in the initial position P1.

[0058] The final eccentricity determination step S3 includes: rotating the eccentric disk 22 to drive the connecting rod 12 to continue moving through the involute annular groove 221 opened on the eccentric disk 22, and when an eccentricity scale line L1 of the eccentric disk 22 is aligned with the marked scale line L of the chassis 21, the rotating part is in the processing position P2, and the eccentricity corresponding to the eccentricity scale line L1 is the final eccentricity of the rotating part to be processed.

[0059] Specifically, a marking scale line L is provided on the circumferential surface of the chassis 11, and an initial eccentricity scale line L0 and a plurality of eccentricity scale lines L1…L10 are provided on the circumferential surface of the eccentric disk 22, wherein the distances between the inner side surface of the involute annular groove 221 and the axis of rotation of the eccentric disk 22 are a and b respectively, and the profile of the involute annular groove 221 is uniformly changed from the distance a around the axis of rotation of the eccentric disk 180° to the distance b, and then uniformly changed from the distance b around the axis of rotation of the eccentric disk 180° to the distance a, and the difference between the distance b and the distance a is the maximum adjustable eccentricity distance c of the device, that is, the adjustable eccentricity range is 0~c, c=ba. In this embodiment, the initial eccentricity scale line The eccentricity corresponding to L0 is the initial eccentricity, and the initial eccentricity is 0. The eccentricity corresponding to the eccentricity scale line L10 is the maximum eccentricity c, and the eccentricities corresponding to the remaining eccentricity scale lines are equally divided and engraved between 0 and c, that is, the initial eccentricity scale line L0 and the eccentricity scale line L10 are oppositely engraved on the circumferential surface of the eccentric disk 22, and the remaining eccentricity scale lines are equally divided and engraved from both sides of the initial eccentricity scale line L0 until they are engraved to the eccentricity scale line L10. When a certain eccentricity scale line is adjusted to the marked scale line L according to the processing requirements, the rotating body part is in the processing position, and the eccentricity corresponding to the eccentricity scale line is the final eccentricity, that is, the eccentricity required for processing.

[0060] It should be noted that the present invention does not limit the number of eccentricity scale lines and the eccentricity values ​​corresponding to the initial eccentricity scale lines.

[0061] Please refer to Figure 3-Figure 4 , Figure 3 is a schematic diagram of the initial position; Figure 4 It is a schematic diagram of the processing position. Figure 3-Figure 4The adjustment method of the eccentric machining method of the present invention is described in detail. 1) Install the rotating part on the three-jaw chuck 11; 2) Rotate the eccentric disk 22. When the initial eccentricity scale line L0 corresponds to the marked scale line L, the rotation axis of the chassis 21 coincides with the rotation axis of the three-jaw chuck 11. That is, the eccentricity c is equal to 0 at this time. Figure 3 3) Continue to rotate the eccentric disk 3 until the eccentricity scale line L10 corresponds to the scale line marked L, at this time the eccentric disk 22 has been rotated 180 °, that is, to reach the eccentricity c, see Figure 4 ; 4) Processing the rotating part by a lathe, that is, completing the processing of one eccentric circle, and then directly executing step 3) when processing the next eccentric circle, until all the eccentric circles of a rotating part are processed, the processed rotating part is unloaded from the three-jaw chuck 11.

[0062] It should be noted that in this embodiment, the eccentricity required for processing is taken as the eccentricity c corresponding to the eccentricity scale line L10 as an example for description.

[0063] Please refer to Figure 5-Figure 6 , Figure 5 It is a schematic diagram of the connection between the chassis and the eccentric disc; Figure 6 The figure is a schematic diagram of the connection between the chassis and the clamping assembly. Figure 5-Figure 6 Please combine with Figure 2 The present invention provides an eccentric processing device for a rotating part, comprising: a clamping assembly 1 and an eccentric assembly 2, wherein the clamping assembly 1 is used to clamp and fix the rotating part to be processed; the eccentric assembly 2 is mounted on a lathe chuck, and the clamping assembly 1 is movably connected to the eccentric assembly 2. After the eccentric assembly 2 is adjusted to drive the clamping assembly 1 to move so that the rotating part is in an initial position P1 with an initial eccentricity, the eccentric assembly 2 is adjusted again to drive the clamping assembly 1 to move so that the rotating part is in a processing position P2 with a final eccentricity.

[0064] Furthermore, the clamping assembly 1 includes: a three-jaw chuck 11 and a connecting rod 12. The three-jaw chuck 11 clamps the rotating part; the connecting rod 12 connects the three-jaw chuck 11 and the eccentric assembly 2. The connecting rod includes: a first cylindrical pin 121 and a connecting flange 122. One end of the connecting rod 12 is movably connected to the eccentric assembly 2. One end of the first cylindrical pin 121 is mounted on a side surface S121 of the other end of the connecting rod 12 and is slidably connected to the eccentric assembly 2. The connecting flange 122 is arranged opposite to the first cylindrical pin 121 and is mounted on the other side surface S122 of the other end of the connecting rod. The connecting flange 122 is connected to the three-jaw chuck 11.

[0065] Specifically, the shape of the connecting rod 12 is a cylindrical rod with a threaded hole 123 in the rod, a first cylindrical pin 121 is set on the left side of the lower end, and a connecting flange 122 is set on the left side of the lower end. In this embodiment, the connecting flange 122 is a cylindrical flange, and three countersunk holes 1221 are evenly distributed on the connecting flange 122; three fastening screws 124 pass through the countersunk holes 1221 and cooperate with the evenly distributed threaded holes 111 on the left end face of the three-jaw chuck 11 to fix the connecting rod 12 to the three-jaw chuck 11. At this time, the axis of the three-jaw chuck 11 coincides with the axis of the first cylindrical pin 121.

[0066] In this embodiment, the connecting flange 122 protrudes downward from the first cylindrical pin 121 .

[0067] Furthermore, the eccentric assembly 2 includes: a chassis 21 and an eccentric disc 22, the chassis 21 is mounted on a lathe chuck, one end of the connecting rod 12 is movably connected to the chassis 21; the eccentric disc 22 is rotatably mounted on the chassis 21, an involute ring groove 221 is provided on the eccentric disc 22, the other end of the first cylindrical pin 121 is located in the involute ring groove 221, and the involute ring groove 221 is a groove with different widths. The eccentric disc 22 is rotated to push the first cylindrical pin 121 through the two side surfaces S221 and S222 of the involute ring groove 221 to drive the connecting rod 12 to move along Figure 6 Move vertically in the direction indicated by the arrow.

[0068] The chassis 21 is provided with a first connecting hole K1 and a second connecting hole K2. One end of the connecting rod 12 is movably connected to the first connecting hole K1 and moves along the first connecting hole K1. Figure 6 The eccentric disk 22 moves vertically in the direction indicated by the arrow in FIG. 2 . The eccentric disk 22 has two side surfaces arranged opposite to each other. A second cylindrical pin 23 is provided on one of the two side surfaces. The second cylindrical pin 23 is installed in the second connecting hole K2. The second cylindrical pin 23 can rotate in the second connecting hole K2. A boss 24 is provided on the other of the two side surfaces. A through hole K3 is provided on the boss 24 to pass a wrench, a crowbar, etc. for rotating the eccentric disk 22.

[0069] Specifically, a first connecting hole K1 is provided in the middle upper portion of the chassis 21. In the present embodiment, the first connecting hole K1 is an elliptical hole, and a second connecting hole K2 is provided in the lower portion. In the present embodiment, the second connecting hole K2 is a circular countersunk hole, and the second connecting hole K2 is surrounded by a circle of annular grooves 211; the eccentric disk 22 is in the shape of a disk, a second cylindrical pin 23 is provided at its left end, and a boss 24 is provided at its right end. In the present embodiment, the boss is circular, and a through hole K3 is provided on the circumferential surface of the boss 24, through which a wrench, a crowbar, etc. can be passed for rotating the eccentric disk 22. An involute annular groove 221 is provided on the right end face of the eccentric disk 22. The distances between the inner side face of the involute annular groove 221 and the axis of rotation of the eccentric disk 22 are a and b respectively, and the wheel of the involute annular groove 221 is The profile changes uniformly from distance a around the eccentric disk rotation axis 180° to distance b, and then changes uniformly from distance b around the eccentric disk rotation axis 180° to distance a. The difference between distance b and distance a is the maximum adjustable eccentric distance c of the device, that is, the adjustable eccentric distance range is 0~c; the three locking screws 25 are screwed into the eccentric disk 22 until they are inserted into the annular groove 211 of the chassis 21, which can complete the loosening and locking of the eccentric disk 22; the fastening screw 13 passes through the first connecting hole K1 and cooperates with the threaded hole 123 to clamp the connecting rod 12 in the first connecting hole K1. The connecting rod 12 can move up and down in the first connecting hole K1, and at the same time, the second cylindrical pin 23 extends into the involute annular groove 221 and can move along the involute annular groove 221.

[0070] Furthermore, a marking scale line L is provided on the circumferential surface of the chassis 11, and an initial eccentricity scale line L0 and a plurality of eccentricity scale lines L1...L10 are provided on the circumferential surface of the eccentric disk 22, wherein the distances between the inner side surface of the involute annular groove 221 and the axis of rotation of the eccentric disk 22 are a and b respectively, and the contour of the involute annular groove 221 is uniformly changed from distance a to distance b at 180° around the axis of rotation of the eccentric disk, and then uniformly changed from distance b to distance a at 180° around the axis of rotation of the eccentric disk, and the difference between distance b and distance a is the maximum adjustable eccentricity distance c of the device, that is, the adjustable eccentricity range is 0~c. In this embodiment, the eccentricity corresponding to the initial eccentricity scale line L0 is the initial eccentricity, the initial eccentricity is 0, and the eccentricity corresponding to the eccentricity scale line L10 is the maximum eccentricity. The center distance is c, and the remaining eccentricity scale lines are equally divided and engraved between eccentricities of 0 and c, that is, the initial eccentricity scale line L0 and the eccentricity scale line L10 are opposite to each other on the circumferential surface of the eccentric disk 22, and the remaining eccentricity scale lines are equally divided and engraved from both sides of the initial eccentricity scale line L0 until they are engraved to the eccentricity scale line L10. When the initial eccentricity scale line L0 is located on the marked scale line L, the rotating part is in the initial position P1, and the eccentricity corresponding to the initial eccentricity scale line L0 is the initial eccentricity of the rotating part. When a certain eccentricity scale line is adjusted to be located on the marked scale line L according to the processing requirements, the rotating part is in the processing position P2, and the eccentricity corresponding to the eccentricity scale line is the final eccentricity, that is, the eccentricity required for processing.

[0071] Please refer to Figure 2-Figure 3 The working process of the eccentric machining device of the present invention is described in detail below:

[0072] 1) Install the rotating part on the three-jaw chuck 11; 2) After unscrewing the three locking screws 25, rotate the eccentric disk 22. 2) Rotate the eccentric disk 22. When the initial eccentricity scale line L0 corresponds to the marked scale line L, the rotation axis of the chassis 21 coincides with the rotation axis of the three-jaw chuck 11. That is, the eccentricity c is equal to 0 at this time. Figure 3 3) Continue to rotate the eccentric disk 3 until the eccentricity scale line L10 corresponds to the scale line marked L, at this time the eccentric disk 22 has been rotated 180 °, that is, to reach the eccentricity c, see Figure 4 ; 4) After tightening the locking screw 25, the rotating part is processed by a lathe to complete the processing of one eccentric circle. When processing the next eccentric circle, step 3) can be directly executed until all the eccentric circles of a rotating part are processed. The processed rotating part is removed from the three-jaw chuck 11.

[0073] To sum up, the present invention uses the involute groove on one side of the eccentric disk through the rotational motion of the eccentric disk to drive the connecting rod to make a linear motion away from or close to the chassis axis, thereby driving the workpiece in the chuck with a non-coinciding axis similar to a crankshaft to move, and adjusting the axis of the workpiece processing surface to coincide with the axis of the lathe spindle movement. This is convenient and quick, and is beneficial to improving the efficiency of mass processing of workpieces with non-coinciding axes similar to crankshafts; at the same time, the eccentric distance is accurately adjusted by the scale around the eccentric disk, saving the time for verifying the workpiece processing benchmark after adjusting the eccentric distance.

[0074] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for eccentric machining of rotating parts, characterized in that: include: Fixing step: mounting the rotating part to be processed on a clamping assembly, and fixing the rotating part by the clamping assembly; Initial eccentricity adjustment step: adjusting the eccentric assembly to drive the clamping assembly to move so that the rotating part is in an initial position with an initial eccentricity; Final eccentricity adjustment step: re-adjusting the eccentric assembly to drive the clamping assembly to move so that the rotating part is in a processing position with a final eccentricity; Processing step: processing the rotating part at the processing position according to the final eccentricity; Wherein, the fixing step includes: Mounting the rotating part on a three-jaw chuck, and clamping the rotating part by the three-jaw chuck; Connect the three-jaw chuck and the eccentric assembly via a connecting rod; The initial eccentricity determination step includes: Fixing a chassis on a lathe chuck and connecting it to the connecting rod; An eccentric disk is rotatably mounted on the chassis; The eccentric disk is rotated to drive the connecting rod to move through the involute annular groove provided on the eccentric disk. When an initial eccentricity scale line of the eccentric disk is located at a marked scale line of the chassis, the rotating body part is in the initial position.

2. The eccentric machining method according to claim 1, wherein: The final eccentricity determination step comprises: The eccentric disk is rotated to drive the connecting rod to continue moving through the involute annular groove provided on the eccentric disk. When an eccentric distance scale line of the eccentric disk is located at the marked scale line of the chassis, the rotating part is in the processing position, and the eccentric distance corresponding to the eccentric distance scale line is the final eccentric distance of the rotating part to be processed.

3. An eccentric machining device for rotating parts, characterized in that: include: A clamping assembly, used to clamp and fix the rotating parts to be processed; An eccentric assembly is mounted on a lathe chuck, the clamping assembly is movably connected to the eccentric assembly, and the eccentric assembly is adjusted to drive the clamping assembly to move so that the rotating part is in an initial position with an initial eccentricity, and then the eccentric assembly is adjusted again to drive the clamping assembly to move so that the rotating part is in a processing position with a final eccentricity; Wherein, the clamping assembly includes: A three-jaw chuck for clamping the rotating part; A connecting rod connecting the three-jaw chuck and the eccentric assembly; Wherein, the connecting rod comprises: a first cylindrical pin, one end of the connecting rod being movably connected to the eccentric assembly, one end of the first cylindrical pin being mounted on a side surface of the other end of the connecting rod and being slidably connected to the eccentric assembly; a connecting flange, disposed opposite to the first cylindrical pin and mounted on the other side surface of the other end of the connecting rod, the connecting flange being connected to the three-jaw chuck; Wherein, the eccentric component comprises: A chassis is mounted on a lathe chuck, and one end of the connecting rod is movably connected to the chassis; The eccentric disk is rotatably mounted on the chassis. An involute ring groove is provided on the eccentric disk. The other end of the first cylindrical pin is located in the involute ring groove. The eccentric disk is rotated to push the first cylindrical pin through the two side surfaces of the involute ring groove to drive the connecting rod to move.

4. The eccentric machining device according to claim 3, wherein: A first connecting hole and a second connecting hole are provided on the chassis, one end of the connecting rod is movably connected to the first connecting hole, the eccentric disk has two side surfaces arranged opposite to each other, a second cylindrical pin is provided on one of the two side surfaces, the second cylindrical pin is installed in the second connecting hole, and a boss is provided on the other of the two side surfaces, and a through hole is provided on the boss.

5. The eccentric machining device according to claim 4, wherein: A marking scale line is provided on the circumferential surface of the chassis, and an initial eccentricity scale line and multiple eccentricity scale lines are provided on the circumferential surface of the eccentric disk. When the initial eccentricity scale line pair is located at the marking scale line, the rotating part is in the initial position, and the eccentricity corresponding to the initial eccentricity scale line is the initial eccentricity of the rotating part. When the eccentricity scale line pair is located at the marking scale line, the rotating part is in the processing position, and the eccentricity corresponding to the eccentricity scale line is the final eccentricity of the rotating part to be processed.

Images