A method for processing a half-cylinder combined cylinder surface

Abstract

The present application belongs to the field of mechanical processing, and particularly relates to a positioning structure for assembling a half-cylinder part. The present application provides a processing method for the jointing surface of a half-recessed and half-protruded combined frame. The vertical jointing surface and the inclined jointing surface of the two half-cylinder are processed respectively by the method, so that the over-positioning when the two half-cylinder are jointed can be avoided, the two half-cylinder are smoothly integrated, the gap between the vertical jointing surface and the gap between the inclined jointing surface can reach the technical requirement of 0.05mm in one time, the processing efficiency is improved, and the processing quality is ensured. Thus, the processing precision of the lower frame of the large half-recessed and half-protruded combined frame is ensured.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of mechanical processing, and particularly relates to a processing method for half-cylinder body part half-cylinder assembly. BACKGROUND

[0002] The lower rack is one of the key parts of the gyratory crusher, is a rotary body structure, and generally adopts integral casting. The large-size lower rack researched this time is designed into a rotary body of two half-castings which are combined into one after casting and is a sleeve-embedded structure. In the processing of the half-cylinder assembly surface, the difficulty lies in that the gap between the two vertical half-cylinder assembly surfaces is required to be less than 0.05 mm, and at the same time, the gap between the two pairs of inclined half-cylinder assembly surfaces is required to be less than 0.05 mm. By using the ordinary processing method, after the vertical half-cylinder assembly surface and the inclined half-cylinder assembly surface are processed at one time and combined together, the gap between the vertical half-cylinder assembly surface and the gap between the inclined half-cylinder assembly surface cannot simultaneously meet the requirement of being less than 0.05 mm, i.e. the over-positioning phenomenon occurs, and it is difficult to meet the technical requirement at one time, and repeated trimming is required, the processing flow is complicated, and the efficiency is low. SUMMARY

[0003] Based on the above problems, a processing method for the half-cylinder assembly surface of a half-recessed and half-protruding combined rack is provided. By this method, the vertical half-cylinder assembly surface and the inclined half-cylinder assembly surface of the two half-cylinders are processed respectively, and the over-positioning phenomenon is avoided when the two half-cylinders are combined, so that the two half-cylinders are successfully combined into one, and the gap between the vertical half-cylinder assembly surface and the gap between the inclined half-cylinder assembly surface meet the technical requirement of the drawing at one time. The purpose of the present application is achieved in the following way: a processing method for the half-cylinder assembly surface of a half-cylinder body, the half-cylinder body comprising a first cylinder body and a second cylinder body, the first cylinder body comprising a first vertical half-cylinder assembly surface and a recessed half-cylinder assembly surface, the second cylinder body comprising a protruding half-cylinder assembly surface and a second vertical half-cylinder assembly surface, the half-cylinder assembly method comprising the following steps:

[0004] S1: processing the first vertical half-cylinder assembly surface, the first cylinder body is rotated to be perpendicular to the horizontal plane and directly opposite the main shaft of the machine tool, and the main shaft coarsely processes the first vertical half-cylinder assembly surface;

[0005] S2: processing the recessed half-cylinder assembly surface, the main shaft is installed with a right-angle milling head, the first cylinder body is rotated to be parallel to the recessed half-cylinder assembly surface, the main shaft drives the right-angle milling head to coarsely process the recessed half-cylinder assembly surface and leave a processing allowance;

[0006] S3: processing the second vertical half-cylinder assembly surface, the second cylinder body is rotated to be perpendicular to the horizontal plane and directly opposite the main shaft of the machine tool, and the main shaft coarsely processes the second vertical half-cylinder assembly surface and leaves the processing allowance;

[0007] S4: Machining the protruding cylinder surface, the right-angle milling head is mounted on the spindle, the second cylinder body is rotated until the spindle is parallel to the protruding cylinder surface, the spindle drives the right-angle milling head to rough machine the protruding cylinder surface, leaving machining allowance;

[0008] S5: Detect machining accuracy. Use an edge-checking device to detect the machining accuracy of the first cylinder block and the second cylinder block. Compile the difference between the machining accuracy value and the theoretical machining accuracy value into the finishing program.

[0009] S6: Call the finishing program and repeat steps S1-S5 until the difference is a preset value to end the entire process.

[0010] In one embodiment, the machining allowance is 2 mm.

[0011] In one embodiment, the recessed cylinder engagement surface includes a left recessed cylinder engagement surface and a right recessed cylinder engagement surface, which are symmetrically arranged along the center line of the first cylinder body.

[0012] In one embodiment, the protruding cylinder surface includes a left protruding surface and a right protruding surface, which are symmetrically arranged along the center line of the second cylinder body.

[0013] In one embodiment, the preset value is 0.2 mm.

[0014] This invention overcomes the problem that existing conventional machining methods cannot simultaneously meet the technical requirement of less than 0.05mm for the cylinder closing gap of the vertical cylinder closing surface and the cylinder closing gap of the inclined cylinder closing surface. It provides a machining method for the cylinder closing surface of a split-concave-convex composite frame. This method, by machining the vertical and inclined cylinder closing surfaces of the two cylinder halves separately, avoids over-positioning during cylinder closing, allowing the two cylinder halves to be smoothly assembled into one unit. This ensures that the gap between the vertical and inclined cylinder closing surfaces meets the 0.05mm technical requirement in the drawing in one pass, improving machining efficiency and guaranteeing machining quality. This ensures the machining accuracy of the lower frame of a large split-concave-convex composite rotating body. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the first cylinder block structure;

[0016] Figure 2 This is a schematic diagram of the second cylinder block structure;

[0017] 100 - First cylinder block, 110 - First vertical cylinder mating surface on the left, 111 - First vertical cylinder mating surface on the right, 120 - Recessed cylinder mating surface on the left, 121 - Recessed cylinder mating surface on the right, 200 - Second cylinder block, 210 - Second vertical cylinder mating surface on the left, 211 - Second vertical cylinder mating surface on the right, 220 - Protruding cylinder mating surface on the left, 221 - Protruding cylinder mating surface on the right. Detailed Implementation

[0018] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0019] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," "top," "bottom," "end," "top," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] A method for machining the cylinder mating surface of a semi-semi-cylinder block, wherein the semi-semi-cylinder block includes a first cylinder block 100 and a second cylinder block 200, the first cylinder block 100 includes a first vertical mating surface and a concave mating surface, and the second cylinder block 200 includes a convex mating surface and a second vertical mating surface, wherein the first cylinder block 100 and the second cylinder block 200 are both symmetrical structures symmetrical along a center line, characterized in that the cylinder mating method includes the following steps:

[0022] S1: Machining the first vertical cylinder mating surface, the first cylinder body 100 is rotated until the first vertical cylinder mating surface is perpendicular to the horizontal plane and directly opposite the machine tool spindle. The spindle rough-machines the first vertical cylinder mating surface, leaving a 2mm allowance. The left first vertical cylinder mating surface 110 and the right first vertical cylinder mating surface 111 are symmetrical along the center line of the first cylinder body, that is, the machining surfaces of the left first vertical cylinder mating surface 110 and the right first vertical cylinder mating surface 111 are on the same plane. The spindle can machine the left first vertical surface 110 and the right first vertical surface 111 simultaneously.

[0023] S2: Machining the recessed cylinder surface, the spindle is equipped with a right-angle milling head, the first cylinder body is rotated until the spindle is parallel to the recessed cylinder surface, the spindle drives the right-angle milling head to rough machine the recessed cylinder surface, leaving a machining allowance of 2mm; the recessed cylinder surface includes a left recessed cylinder surface and a right recessed cylinder surface, the left recessed cylinder surface and the right recessed cylinder surface are symmetrically arranged along the center line of the first cylinder body.

[0024] Specifically, step S2 is divided into the following steps:

[0025] Step 1: The angle between the left concave cylinder surface 120 and the first vertical cylinder surface is α, where α is greater than 0° and less than 90°. In this embodiment, α is 30°. The upper end face of the left concave cylinder surface 120 is used as the machining reference. The first cylinder body 100 is rotated counterclockwise by 30° so that the left concave cylinder surface 120 is parallel to the machine tool spindle. A right-angle milling head is installed so that it is perpendicular to the left concave cylinder surface 120. The spindle drives the right-angle milling head to mill the left concave cylinder surface 120, leaving a machining allowance of 2mm.

[0026] Step 2: Rotate the first cylinder body 100 clockwise by 60° so that the right concave cylinder surface 121 is parallel to the machine tool spindle. Install the right angle milling head so that the head of the right angle milling head is perpendicular to the right concave cylinder surface 121. The spindle drives the right angle milling head to mill the right concave cylinder surface 121, leaving a machining allowance of 2mm.

[0027] Step 3: Rotate the first cylinder body 100 to the position where the first vertical cylinder mating surface is directly opposite the spindle. Use the edge tracing device to detect the current position of the recessed cylinder mating surface inside the first cylinder mating surface. Based on the theoretical relative position size comparison between the first vertical cylinder mating surface outside the first cylinder body 100 and the recessed cylinder mating surface with an angle of α, record the detection data and assign the data to the finishing program to accurately locate the position of the recessed cylinder mating surface.

[0028] Step 4: Repeat step 1, call the finishing program, and mill the left concave cylinder surface to the dimensions shown in the drawing;

[0029] Step 5: Repeat step 2, call the finishing program, and mill the right-side recessed cylinder surface to the dimensions shown in the drawing;

[0030] Step 6: With the first vertical cylinder mating surface facing the main spindle, use an edge checker to check the positional accuracy of the machined left concave cylinder mating surface 120 and the right concave cylinder mating surface 121 to 0.2mm and the surface roughness to meet the requirements. Then, machine the first vertical cylinder mating surface again to the dimensions and accuracy of the drawing. The first cylinder body 100 is then machined.

[0031] S3: Machining the second vertical cylinder mating surface, the second cylinder body 200 rotates until the second vertical cylinder mating surface is perpendicular to the horizontal plane and directly opposite the machine tool spindle, the spindle rough-machines the second vertical cylinder mating surface, leaving a machining allowance of 2mm; the left second vertical cylinder mating surface 210 and the right second vertical cylinder mating surface 211 are symmetrically structured along the center line of the first cylinder body, that is, the machining surfaces of the left second vertical cylinder mating surface 210 and the right second vertical cylinder mating surface 211 are on the same plane, the spindle can simultaneously machine the left second vertical surface 210 and the right second vertical surface 211;

[0032] S4: Machining the protruding cylinder surface, the right-angle milling head is mounted on the spindle, the second cylinder 200 rotates until the spindle is parallel to the protruding cylinder surface, the spindle drives the right-angle milling head to rough machine the protruding cylinder surface, leaving a machining allowance of 2mm;

[0033] Specifically, step S4 is divided into the following steps:

[0034] Step 1: The angle between the right protruding cylinder mating surface 220 and the second vertical cylinder mating surface is β, where β is greater than 0° and less than 90°. In this embodiment, β is 30°. The upper end face of the right protruding cylinder mating surface 220 is used as the machining reference. The second cylinder body 200 is rotated counterclockwise by 60° so that the right protruding cylinder mating surface 220 is perpendicular to the machine tool spindle. The spindle drives the right-angle milling head to mill the right protruding cylinder mating surface 220, leaving a machining allowance of 2mm.

[0035] Step 2: Rotate the second cylinder 200 clockwise by 120° so that the left protruding cylinder mating surface 220 is perpendicular to the machine tool spindle. The spindle drives the right-angle milling head to mill the left protruding cylinder mating surface 220, leaving a machining allowance of 2mm.

[0036] Step 3: Rotate the second cylinder 200 to the position where the second vertical surface faces the main shaft. Use the edge tracing device to detect the current position of the protruding cylinder mating surface on the inner side of the second cylinder 200. Based on the relative position data of the outer vertical cylinder mating surface and the protruding cylinder mating surface with an angle of β, accurately locate the position of the protruding cylinder mating surface, record the detection data, and assign the data to the program.

[0037] Step 4: Repeat step 1, call the assignment program, and mill the right-side protruding cylinder surface 221 to the drawing dimensions;

[0038] Step 5: Repeat step 2, call the assignment program, and mill the left protrusion cylinder surface 220 to the drawing size;

[0039] Step 6: With the second vertical cylinder mating surface facing the main shaft, use an edge inspector to check that the positional accuracy of the machined left raised cylinder mating surface 220 and the right raised cylinder mating surface 221 is 0.2mm and the surface roughness meets the requirements. Then, machine the second vertical cylinder mating surface again to the dimensions and accuracy of the drawing. The first cylinder body 100 is then machined.

[0040] S5: Detect machining accuracy. Use an edge-checker to detect the machining accuracy of all machining surfaces of the first cylinder block 100 and the second cylinder block 200. Compile the difference between the machining accuracy value and the theoretical machining accuracy value into the finishing program.

[0041] S6: Call the finishing program and repeat steps S1-S5 until the difference is a preset value to end the entire process.

[0042] Finally, the first cylinder block 100 and the second cylinder block 200 are placed on a horizontal platform for cylinder assembly.

[0043] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A method for machining the mating surface of a semi-semi-cylinder body, wherein the semi-semi-cylinder body comprises a first cylinder body and a second cylinder body, the first cylinder body comprises a first vertical mating surface and a recessed mating surface, and the second cylinder body comprises a convex mating surface and a second vertical mating surface, characterized in that, The method for machining the cylinder surface of the semi-splitter cylinder block includes the following steps: S1: Machining the first vertical cylinder mating surface, the first cylinder body is rotated until the first vertical cylinder mating surface is perpendicular to the horizontal plane and faces the machine tool spindle. The spindle rough-machines the first vertical cylinder mating surface, and simultaneously machines the left first vertical cylinder mating surface and the right first vertical cylinder mating surface. The two are located in the same plane and are symmetrical along the center line of the first cylinder body, leaving machining allowance. S2: Machining the concave cylinder surface, the spindle is equipped with a right-angle milling head, the first cylinder body is rotated until the spindle is parallel to the concave cylinder surface, the spindle drives the right-angle milling head to rough machine the concave cylinder surface, leaving machining allowance; S3: Machining the second vertical cylinder mating surface, the second cylinder body is rotated until the second vertical cylinder mating surface is perpendicular to the horizontal plane and directly opposite the machine tool spindle, the spindle rough-machines the second vertical cylinder mating surface, leaving machining allowance; and simultaneously machining the left side second vertical cylinder mating surface and the right side second vertical cylinder mating surface, which are located in the same plane and symmetrical along the center line of the second cylinder body; S4: Machining the protruding cylinder mating surface, the right-angle milling head is mounted on the spindle, the second cylinder body is rotated until the spindle is parallel to the protruding cylinder mating surface, the spindle drives the right-angle milling head to rough machine the protruding cylinder mating surface, leaving machining allowance; S5: Detect machining accuracy. Use an edge-checking device to detect the machining accuracy of the first cylinder block and the second cylinder block. Compile the difference between the machining accuracy value and the theoretical machining accuracy value into the finishing program. S6: Call the finishing program and repeat steps S1-S5 until the difference is a preset value to end the entire process.

2. A method for machining the cylinder surface of a semi-splitter cylinder block as described in claim 1, characterized in that, The machining allowance is 2mm.

3. A method for machining the cylinder surface of a semi-splitter cylinder block as described in claim 1, characterized in that, The recessed cylinder engagement surface includes a left recessed cylinder engagement surface and a right recessed cylinder engagement surface, which are symmetrically arranged along the center line of the first cylinder body.

4. A method for machining the cylinder surface of a semi-splitter cylinder block as described in claim 1, characterized in that, The protruding cylinder surface includes a left protruding surface and a right protruding surface, which are symmetrically arranged along the center line of the second cylinder body.

5. A method for machining the cylinder surface of a semi-splitter cylinder block as described in claim 1, characterized in that, The preset value is 0.2mm.

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