A method for machining multi-bevel parts by using a three-axis machining center

Abstract

The present application relates to the field of mechanical manufacturing, and provides a method for processing multi-bevel parts by using a three-axis machining center, which replaces a five-axis machining center and reduces manufacturing cost, and the scheme is as follows: firstly, a side of the part is processed into a multi-bevel by using the three-axis machining center, a process block is selected and adhered to the multi-bevel surface of the part, and the profile of the part combined with the process block after milling is changed into a form that can be aligned by the three-axis machining center; then, the adhered part and process block are turned over, and the other side of the part is processed by using the three-axis machining center; finally, the adhered process block is removed, and the processed part is obtained. The present application is suitable for processing various mold parts.

Description

Technical Field

[0001] This invention relates to the field of mechanical manufacturing, and in particular to a method for machining parts with multiple inclined planes and no vertical plane as a reference surface. Background Technology

[0002] In the machining of mechanical parts, especially in the manufacturing of mold parts, parts with multiple inclined surfaces and no vertical surface as a reference are often difficult to machine. They require a five-axis machining center to complete the machining in a single setup, without flipping or changing the reference. However, sometimes space constraints mean that even a five-axis machining center cannot guarantee the machining requirements. In such cases, a special fixture needs to be made, which is costly. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a method for machining multi-sloping parts using a three-axis machining center, replacing a five-axis machining center and reducing manufacturing costs.

[0004] The technical solution of the present invention is

[0005] A method for machining multi-sloping surface parts using a three-axis machining center includes:

[0006] First, a three-axis machining center is used to machine one side of the part, which has multiple inclined surfaces. A process block is selected and attached to the surface of the part with multiple inclined surfaces. Through milling, the contour of the part and the process block on this side is transformed into a shape that the three-axis machining center can align. Then, the attached part and the process block are flipped over, and the other side of the part is machined using the three-axis machining center. Finally, the attached process block is removed to obtain the machined part.

[0007] Specifically, it includes:

[0008] Step 1: Machining a mesh pattern on the surface of the aluminum process block;

[0009] Step 2: Clamp the unmachined cuboid part onto the three-axis machining center and machine it. Complete all the machined inclined surfaces in this clamping position.

[0010] Step 3: Apply glue to the groove of the process block and stick it firmly to the milled inclined surface, then let it stand still and wait.

[0011] Step 4: After the glue has dried, mill the process block to make the outline of the part on this side combined with the process block into a shape that can be aligned by a three-axis machining center.

[0012] Step 5: Fix the part on the reverse side and perform additional machining on the unmachined surfaces;

[0013] Step 6: Remove the bonded process blocks to obtain the machined parts.

[0014] The process block is made of aluminum, specifically 6061 aluminum alloy.

[0015] Step six involves removing the bonded process blocks by knocking them off or heating them.

[0016] In step one, the groove shape is an equilateral triangle. The side length of the groove is 2mm, and the groove spacing is 8mm.

[0017] Step four: The three-axis machining center can be aligned in the following form:

[0018] This makes the process block and the processed part form two mutually perpendicular base surfaces that are also perpendicular to the ground.

[0019] Step five involves fixing the parts from the reverse side as follows:

[0020] Secure the parts with adhesive from the reverse side or use a vise to tighten them, but do not touch the process block.

[0021] The beneficial effects of this application are as follows:

[0022] The invention provides a method for machining multi-sloping parts using a three-axis machining center, the main advantage of which is that it uses a three-axis machining center instead of a five-axis machining center, thus reducing machining costs.

[0023] The advantages of using aluminum process blocks (6061) compared to process blocks made of other materials (steel, copper) are as follows:

[0024] Aluminum has a low density, which reduces the labor intensity for workers.

[0025] 6061 has good machinability, which can improve machining efficiency and reduce machining costs.

[0026] 6061 material has good corrosion resistance and can be stored for a long time.

[0027] Comparative experiments showed that the bonding was most reliable when the width of the groove was 2mm and it was an equilateral triangle. Attached Figure Description

[0028] Figure 1 A schematic diagram of the aluminum process block provided by the present invention;

[0029] Figure 2 This invention provides a schematic diagram of the reference surface for machining the adhesive block before the first clamping and milling of the part.

[0030] Figure 3 This is a schematic diagram of the reference surface for machining the sticky block after the first clamping and milling of the part provided by the present invention;

[0031] Figure 4 This is a schematic diagram of the flipping and clamping mechanism of the present invention. Detailed Implementation

[0032] This invention discloses a method for machining multi-sloping surface parts using a three-axis machining center. The basic idea is to attach process blocks to the surface of the multi-sloping surface part, which is difficult to align, to restore its outer contour to a rectangle or other easily alignable shape. The process blocks are then removed after machining. Specifically, this includes:

[0033] First, a three-axis machining center is used to machine one side of the part, which has multiple inclined surfaces. A process block is selected and attached to the surface of the part with multiple inclined surfaces. Through milling, the contour of the part and the process block on this side is transformed into a shape that the three-axis machining center can align. Then, the attached part and the process block are flipped over, and the other side of the part is machined using the three-axis machining center. Finally, the attached process block is removed to obtain the machined part.

[0034] The present application will be further described in detail below with reference to the accompanying drawings of the embodiments.

[0035] Figure 1 This is a schematic diagram of the aluminum process block provided by the present invention. Figure 2 Figure 3 This is a schematic diagram of the reference surface for machining the adhesive block before and after the first clamping and milling of the part according to the present invention. Figure 4 This is a schematic diagram of the flipping clamping provided by the present invention, with reference to... Figure 1 , Figure 2 , Figure 3 and Figure 4 The present invention provides a milling method, comprising:

[0036] Step 1: Aluminum process block, material selected is 6061. The shape is cuboid, and the specific dimensions can be determined according to the actual dimensions of the part to be processed;

[0037] Step 2: Machining mesh grooves on the surface of the aluminum process block. The grooves are equilateral triangles with a side length of 2mm and a groove spacing of 8mm.

[0038] Step 3: Clamp the unmachined cuboid part onto the three-axis machining center and perform machining. Complete all the machined inclined surfaces in this clamping position.

[0039] Step 4: Fill the groove of the process block with glue, place it firmly on the milled inclined surface, and wait still;

[0040] Step 5: After the glue has dried, mill the process block so that the process block and the processed part form two mutually perpendicular base surfaces that are also perpendicular to the ground, thus restoring the missing reference.

[0041] Step 6: Secure the parts with adhesive on the reverse side or use a vise to tighten them, but do not touch the process block (to prevent the process block from being clamped off). Then, perform additional machining on the unmachined surfaces.

Claims

1. A method for machining multi-sloping surface parts using a three-axis machining center, characterized in that, The method for manufacturing parts with multiple inclined surfaces and no vertical surface as a reference includes: firstly, machining one side of the part with multiple inclined surfaces using a three-axis machining center; selecting a process block and attaching it to the surface of the part with multiple inclined surfaces; and then using milling to transform the contour of the part and the process block on this side into a shape that the three-axis machining center can align; then flipping the attached part and the process block over and machining the other side of the part using a three-axis machining center; finally, removing the attached process block to obtain the machined part. Specifically, it includes: Step 1: Machining a mesh groove on the surface of the process block; Step 2: Clamp the unmachined cuboid part onto the three-axis machining center and machine it. Complete all the machined inclined surfaces in this clamping position. Step 3: Apply glue to the groove of the process block and stick it firmly to the milled inclined surface, then let it stand still and wait. Step 4: After the glue has dried, mill the process block to make the outline of the part and the process block combined into a shape that can be aligned by a three-axis machining center. The shape that can be aligned by a three-axis machining center is: the process block and the machined part together form two mutually perpendicular base surfaces that are also perpendicular to the ground. Step 5: Fix the parts on the reverse side and perform additional machining on the unmachined surfaces. Fixing the parts on the reverse side specifically involves: fixing the parts with adhesive on the reverse side or clamping the parts with a vise, but without contacting the process blocks. Step 6: Remove the bonded process blocks by knocking or heating to obtain the finished part.

2. The method for machining multi-sloping surface parts using a three-axis machining center as described in claim 1, characterized in that, The process block is made of aluminum, specifically 6061 aluminum alloy.

3. The method for machining multi-sloping surface parts using a three-axis machining center as described in claim 1, characterized in that, In step one, the groove of the mesh is an equilateral triangle.

4. The method for machining multi-sloping surface parts using a three-axis machining center as described in claim 1, characterized in that, The side length of the mesh groove is 2mm, and the groove spacing is 8mm.

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