Computerized numerical control (CNC) machining positioning method, machining method and positioning structure for forged and pressed product

Abstract

The invention discloses a forged and pressed product CNC machining positioning method, a machining method and a positioning structure, and the forged and pressed product CNC machining positioning method comprises the following steps: forging and pressing: forging and pressing a blank to form a product and a plurality of material connecting blocks connected to the periphery of the product; the product is clamped on a positioning clamp, the positioning clamp is provided with a base and clamping parts corresponding to the positions of the material connecting blocks, and the clamping parts are used for pressing the material connecting blocks on the base; cNC machining is conducted, specifically, CNC machining is conducted on the product clamped on the positioning clamp.

Description

Technical Field

[0001] The invention relates to the technical field of CNC machining positioning of forged products, and in particular to a CNC machining positioning method, a machining method and a positioning structure for a forged product. Background Art

[0002] When forging products are positioned during CNC machining, a common method is to use the original holes of the forged products for clamping and positioning. When the original holes of the forged products are used for clamping and positioning, the positioning fixture is in close contact with the product, and there may be uneven gaps or improper operation, which may cause scratches and pressure damage on the surface of the product, thereby affecting the yield of the finished product DDS three damages. In addition, when the product has multiple parts to be processed in different directions, in order to make each part to be processed of the product face the direction of the machining spindle, it is necessary to use multiple positioning fixtures with different structures to clamp the product multiple times to ensure that the part to be processed of the product faces the direction of the machining spindle. This seriously wastes processing equipment and tooling resources and human cost resources, and is not conducive to improving the time efficiency of CT processing. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a CNC machining positioning method, a machining method and a positioning structure for forging products that prevent the products from being scratched or crushed during positioning and clamping.

[0004] In order to solve the above technical problems, a technical solution adopted by the present invention is: providing a CNC machining positioning method for forging products, comprising:

[0005] Forging: Forging the blank to form the product and several connected blocks connected to the periphery of the product;

[0006] Clamping: Clamp the product on a positioning fixture, the positioning fixture has a base and a clamping part corresponding to the position of each connecting block, the clamping part is used to press the connecting block on the base;

[0007] CNC machining: CNC machining is performed on the product clamped on the positioning fixture.

[0008] Furthermore, the plurality of connecting blocks are formed at the bottom end of the product, and the lower surfaces of the plurality of connecting blocks and the bottom end surface of the product are located in the same plane.

[0009] Furthermore, the plurality of connecting blocks are each formed with a positioning hole, and the positioning hole can be configured as a C-shaped hole or a U-shaped hole;

[0010] A positioning column matched with the positioning hole is arranged at a position corresponding to each connecting block on the base, and the height of the positioning column is lower than the height of the connecting block.

[0011] Furthermore, the positioning fixture is erected on a vertical rotating mechanism, and when the product is clamped on the positioning fixture, the axial direction of the product and the rotational axis direction of the vertical rotating mechanism are perpendicular to each other on a horizontal plane;

[0012] The product has multiple parts to be processed, and the multiple parts to be processed partially overlap with the rotation path of the vertical rotation mechanism. When processing each part to be processed, the vertical rotation mechanism drives the positioning fixture to rotate vertically so that each part to be processed of the product is facing the processing spindle.

[0013] Furthermore, the upper end, the side and the bottom of the product are configured as the parts to be processed; when the product is clamped on the positioning fixture, the bottom of the product faces the base of the positioning fixture; a hollow part is formed on the base of the product for the bottom of the product to be exposed to the outside;

[0014] The CNC processing steps include:

[0015] When CNC machining the upper end of the product, the vertical rotating mechanism is rotated vertically so that the upper end of the product faces upward, and the machining spindle performs CNC machining on the upper end of the product;

[0016] When CNC machining the side of the product, the vertical rotation mechanism is rotated vertically so that the side of the product faces upward, and the machining spindle performs CNC machining on the side of the product;

[0017] When CNC processing the bottom end of the product, the vertical rotating mechanism is rotated vertically so that the bottom end of the product is upward through the hollow part, and the processing spindle passes through the hollow part to perform CNC processing on the bottom end of the product.

[0018] Furthermore, in the CNC processing step, a portion of the connecting block close to the product is also thinned.

[0019] Further, in the forging step, it includes:

[0020] Forging I: Form a shallow groove on the upper end of the blank;

[0021] Forging II: Continue forging the blank to form a columnar member, a deep groove formed in the columnar member, a step portion formed on the outer side of the lower section of the columnar member, and a bottom plate formed at the lower end of the columnar member and the step portion, wherein the outer periphery of the bottom plate exceeds the outer periphery of the columnar member and the step portion; the deep groove, the step portion, and the bottom surface of the bottom plate are all configured as the parts to be processed;

[0022] Forging III: Forging the chassis to form a plurality of mounting ears and the plurality of connecting blocks.

[0023] In order to solve the above technical problems, another technical solution adopted by the present invention is: to provide a forging product processing method, comprising the following steps:

[0024] Raw material cutting: cutting the cylindrical raw material to form blanks;

[0025] Forging: Forging the blank to form the product and several connected blocks connected to the periphery of the product;

[0026] Clamping: Clamp the product on a positioning fixture, the positioning fixture has a base and a clamping part corresponding to the position of each connecting block, the clamping part is used to press the connecting block on the base;

[0027] CNC machining: CNC machining is performed on the product clamped on the positioning fixture;

[0028] Removing the connecting block: remove the connecting block and grind the connecting position on the product that is connected to the connecting block;

[0029] Magnetic grinding: Magnetic grinding is performed on the outer surface of the product to remove burrs on the surface of the product.

[0030] In order to solve the above technical problems, another technical solution adopted by the present invention is to provide a CNC machining positioning structure for forging products, comprising:

[0031] A plurality of connecting blocks are configured to be integrally formed on the periphery of the product during forging;

[0032] The positioning fixture is configured to include a base and a plurality of clamping parts arranged corresponding to the plurality of connecting blocks, and the plurality of clamping parts are used to press the connecting blocks onto the base.

[0033] Furthermore, the plurality of connecting blocks are each formed with a positioning hole, and the positioning hole can be configured as a C-shaped hole or a U-shaped hole;

[0034] Positioning columns are provided on the base at positions corresponding to the positioning holes, and the height of the positioning columns is lower than the height of the connecting block; a hollow portion is formed on the base for the bottom end of the product, and the bottom end of the product is exposed to the outside through the hollow portion.

[0035] The CNC machining positioning method, machining method and positioning structure of forged products of the present invention have the following beneficial effects: while forging the product, a connecting block that does not belong to the product itself is forged, without the need for additional processes; by clamping the connecting block with a special positioning fixture, direct contact between the positioning fixture and the product is eliminated, effectively protecting the product from scratches and pressure injuries, and improving the yield rate; the special positioning fixture is assembled with the vertical rotating mechanism at a special angle, so that each part to be processed of the product is on the rotation path of the vertical rotating mechanism, ensuring that when each part to be processed needs to be processed, the vertical rotating mechanism can rotate it to the bottom of the machining spindle, so that one clamping and multiple parts to be processed are all processed; compared with the prior art, there is no need to configure a positioning fixture with a different structure for each part to be processed, and there is no need to repeatedly clamp the product, so as to avoid the loss of positioning structure accuracy caused by repeated clamping and manufacturing, improve the clamping efficiency and processing efficiency, save manpower, and reduce the CT time. In the products of radar shells, the product yield rate is increased by more than 20%, and the CT time is reduced by more than 10%. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0037] Figure 1 It is a flow chart of an implementation method of the CNC machining positioning method for forged products of the present invention.

[0038] Figure 2 It is a schematic structural diagram of a product in one embodiment of the present invention.

[0039] Figure 3 It is a schematic diagram of the structure of the blank after forging I in one embodiment of the present invention.

[0040] Figure 4 It is a schematic diagram of the structure of the blank after forging II in one embodiment of the present invention.

[0041] Figure 5 It is a schematic diagram of the semi-finished product structure after forging in one embodiment of the present invention.

[0042] Figure 6 This is a schematic diagram of the assembly of the product and the positioning fixture, in which one of the clamping structures is hidden.

[0043] Figure 7 It is a flow chart of one embodiment of the forging product processing method of the present invention.

[0044] The accompanying drawings in the specification are numeraled as follows:

[0045] Blank 10; product 100; shallow groove 101; connecting block 110; positioning hole 111; upper surface 112; columnar member 120; deep groove 130; step portion 140; chassis 150; mounting ear 160; hole 161;

[0046] Positioning fixture 200; axis L1; rotation axis L2; ​​base 210; hollow portion 211; frame 212; mounting portion 213; positioning column 214; clamping portion 220;

[0047] Vertical rotation mechanism 300. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0049] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0051] See also Figure 1 , Figure 2 and Figure 5 , Figure 1 It is a flow chart of an implementation method of the CNC machining positioning method for forged products of the present invention. Figure 2 It is a schematic structural diagram of a product in one embodiment of the present invention. Figure 5It is a schematic diagram of the semi-finished product structure after forging in one embodiment of the present invention. The CNC processing positioning method of the forged product in this embodiment is used to forge a plurality of connecting blocks 110 in one piece when forging the product 100. When CNC processing the product 100, the connecting block 110 is clamped at the positioning fixture 200 as the clamped part, and when CNC processing the product 100, the connecting block 110 is thinned to facilitate the removal of the connecting block 110 after the CNC processing is completed. Compared with the prior art, the positioning fixture 200 of this method will not directly clamp and position the product 100, so it will not cause scratches or pressure damage to the product 100, thereby improving the product yield.

[0052] The following is an exemplary description of this embodiment using a radar housing as an example of a forged product. Those skilled in the art will appreciate that this solution is applicable to all forged products. The CNC machining positioning method for forged products in this embodiment includes the following steps:

[0053] S101, forging: forging the blank 10 to form a product 100 and a plurality of connecting blocks 110 connected to the periphery of the product 100. The size and shape of the blank 10 correspond to the size and shape of the final formed product 100. In this embodiment, the blank 10 is a cylindrical structure, and the facade of the blank 10 is composed of a circular arc facade and a flat vertical surface, and its horizontal projection surface is similar to a C shape or a light bulb shape (the orthographic projection shape of a light bulb).

[0054] The plurality of connecting blocks 110 may be formed at the bottom end of the product 100, and the lower surface of the plurality of connecting blocks 110 may be located in the same plane as the bottom end surface of the product 100. The plurality of connecting blocks 110 are each formed with a positioning hole 111, and the positioning hole 111 may be configured as a C-shaped positioning hole 111 or a U-shaped positioning hole 111, and the positioning hole 111 passes through the connecting block 110 from the outer end surface of the connecting block 110 (an end surface away from the product 100 in the horizontal direction) to form a gap, and the gap connects the positioning hole 111 with the outside. The C-shaped positioning hole 111 or the U-shaped positioning hole 111 can improve the assembly efficiency between it and the positioning column on the positioning fixture 200, and the position of the product 100 on the positioning fixture 200 can be finely adjusted as needed.

[0055] This step takes the radar housing as an example to illustrate the forging process. When forging the radar housing, the following specific forging steps are included:

[0056] Forging I: See Figure 3 , so that a shallow groove 101 is formed at the upper end of the blank 10 , specifically, the shallow groove 101 is a circular shallow groove 101 .

[0057] Forging II: See Figure 4 , the blank 10 is continuously forged (forging is continued at the position of the shallow groove 101), so that the blank 10 forms a columnar member 120, a deep groove 130 (the depth of which is greater than the depth of the shallow groove 101) formed in the columnar member 120, a step portion 140 formed on the outer side of the lower section of the columnar member 120, and a bottom plate 150 formed at the lower end of the columnar member 120 and the step portion 140, and the outer periphery of the bottom plate 150 exceeds the outer periphery of the columnar member 120 and the step portion 140. The notch of the deep groove 130 faces upward, and the outer side surfaces of the deep groove 130, the step portion 140, and the bottom surface of the bottom plate 150 are all configured as CNC processing parts.

[0058] Forging III: Please continue to see Figure 5 , the chassis 150 is forged to form a plurality of mounting ears 160 and the plurality of connecting blocks 110. In this embodiment, three mounting ears 160 are formed on the periphery of the columnar member 120, and the three mounting ears 160 are evenly spaced around the periphery of the columnar member 120, one of the mounting ears 160 is formed with a hole 161, and the other two mounting ears 160 are each formed with two holes 161. Three connecting blocks 110 are formed on the periphery of the columnar member 120, and one connecting block 110 is formed between each two adjacent connecting blocks 110, and the three connecting blocks 110 can be evenly spaced around the periphery of the columnar member 120. Each connecting block 110 is integrally forged to form the above-mentioned positioning hole 111, and the positioning hole 111 is a C-shaped positioning hole 111.

[0059] S102, Clamping: Please refer to Figure 6 , the product 100 is clamped on the positioning fixture 200, and the positioning fixture 200 has a base 210 and a clamping part 220 corresponding to the position of each connecting block 110. The clamping part 220 is used to press the connecting block 110 on the base 210, and the clamping part 220 can be configured as a rotating cylinder pressure plate. The base 210 is formed with a hollow part 211 for the bottom end of the product 100 to be exposed to the outside. When the product 100 is clamped on the positioning fixture, the bottom end of the product 100 faces the base 210 of the positioning fixture 200.

[0060] In this embodiment, the base 210 includes a frame 212 having the hollow portion 211 and a mounting portion 213 disposed on a side edge of the frame 212. The mounting portion 213 is used to be detachably connected to a vertical rotation mechanism 300 on a CNC machine tool. The vertical rotation mechanism 300 can be a four-axis device or a five-axis device, and its rotating table is horizontally arranged and vertically rotated. A positioning column 214 that cooperates with the positioning hole 111 is disposed at a position corresponding to each positioning hole 111 on the frame 212. The height of the positioning column 214 is lower than the height of the connecting block 110. When the positioning column 214 is inserted into the positioning hole 111, the top surface of the positioning column 214 is lower than the upper surface 112 of the connecting block 110, so that the clamping portion 220 can be pressed on the upper surface 112 of the connecting block 110.

[0061] When the positioning fixture 200 is installed on the vertical rotation mechanism 300, the base 210 is in an upright position, and the mounting portion 213 is installed on the vertical rotation mechanism 300, so that the positioning fixture 200 is vertically arranged on the vertical rotation mechanism 300. When the product 100 is clamped on the positioning fixture 200 installed on the vertical rotation mechanism 300, the axis L1 direction of the product 100 and the rotation axis L2 direction of the vertical rotation mechanism 300 are in a vertical state on the horizontal plane. That is, the product 100 and the vertical rotation mechanism 300 are both arranged horizontally. If the rotation axis L2 of the vertical rotation mechanism 300 is defined as the left-right direction, the axis L1 of the product 100 can be defined as the front-back direction.

[0062] The product 100 has three parts to be processed, which are respectively distributed at the upper end, the side and the bottom end of the product 100. Specifically, the three parts to be processed are the deep groove 130 located at the upper end of the product 100, the step located on the outside of the product 100 and the bottom plate 150 located at the lower end of the product 100 mentioned above. The three parts to be processed partially overlap with the rotation path of the vertical rotation mechanism 300. When processing each part to be processed, the vertical rotation mechanism 300 drives the positioning fixture 200 to rotate vertically so that each part to be processed of the product 100 faces the processing spindle. Those skilled in the art can understand that the parts to be processed of the product 100 are not limited to three, and may include two or more parts to be processed.

[0063] Continuing with the left-right direction and front-to-back direction as examples, the three parts to be processed and the rotation path of the product 100 are explained as follows: when the product 100 is clamped on the positioning fixture 200 on the vertical rotation mechanism 300, the upper end of the product 100 faces the front or rear side (that is, the deep groove 130 part faces the front or rear side), the step portion 140 on the outside of the product 100 faces the upper side (towards the processing spindle above), and the bottom end of the product 100 faces the rear side or the front side. The vertical rotation mechanism 300 rotates from back to front or from front to back around the rotation axis L2, so that each part to be processed of the product 100 is on the rotation path of the vertical rotation mechanism 300, and the vertical rotation mechanism 300 can make each part to be processed face upward (towards the processing spindle), so that the processing spindle can perform CNC processing on each part to be processed.

[0064] S103 , CNC processing: performing CNC processing on the product 100 clamped on the positioning fixture 200 .

[0065] The CNC processing can be performed according to actual conditions to perform milling processing, hole processing, etc. on the inner wall surface of the deep groove 130 and the bottom end of the product 100, and to perform hole processing on the step portion 140, etc. When CNC processing the upper end of the product 100, the vertical rotation mechanism 300 is vertically rotated so that the upper end of the product 100 faces upward, and the processing spindle performs CNC processing on the upper end of the product 100. When CNC processing the side of the product 100, the vertical rotation mechanism 300 is vertically rotated so that the side of the product 100 faces upward, and the processing spindle performs CNC processing on the side of the product 100. When CNC processing the bottom end of the product 100, the vertical rotation mechanism 300 is vertically rotated so that the bottom end of the product 100 faces upward through the hollow part 211, and the processing spindle passes through the hollow part 211 to perform CNC processing on the bottom end of the product 100.

[0066] In this embodiment, when processing the upper end of the product 100, the portion of the connecting block 110 close to the product 100 is also thinned, so that it is convenient to break the connecting block 110 after the CNC processing is completed.

[0067] Compared with the previous CNC machining positioning method for forged products, the embodiment of the present invention has the following beneficial effects: when forging the product 100, the connecting block 110 that does not belong to the product 100 itself is forged, without adding additional processes; by clamping the connecting block 110 with the special positioning fixture 200, the positioning fixture 200 is prevented from directly contacting the product 100, effectively protecting the product 100 from being scratched and pressed, and improving the yield rate; the special angle assembly of the special positioning fixture 200 and the vertical rotation mechanism 300 makes each of the product 100 to be forged be fixed at the same time. The processing parts are all on the rotation path of the vertical rotating mechanism 300, ensuring that when each part to be processed needs to be processed, the vertical rotating mechanism 300 can rotate it to the bottom of the processing spindle, so that multiple parts to be processed can be processed in one clamping; compared with the prior art, it is not necessary to configure a positioning fixture 200 with a different structure for each part to be processed, and it is not necessary to repeatedly clamp the product 100, avoiding the loss of positioning structure accuracy caused by repeated clamping manufacturing, improving clamping efficiency and processing efficiency, saving manpower, and reducing CT time. In the radar shell product 100, the product yield is increased by more than 20%, and the CT time is reduced by more than 10%.

[0068] See also Figure 7 , Figure 7 1 is a flow chart of an embodiment of a forging product processing method of the present invention. The forging product processing method in this embodiment comprises the following steps:

[0069] S201 , raw material cutting: cutting the columnar raw material to form a blank 10 .

[0070] S202, forging: forging the blank 10 to form a product 100 and a plurality of connecting blocks 110 connected to the periphery of the product 100. This step takes a radar housing as an example to illustrate the forging process. When forging the radar housing, the following specific forging steps are included:

[0071] Forging I: a shallow groove 101 is formed at the upper end of the blank 10 . Specifically, the shallow groove 101 is a circular shallow groove 101 .

[0072] Forging II: Continue forging the blank 10 (continue forging at the position of the shallow groove 101), so that the blank 10 forms a columnar member 120, a deep groove 130 formed in the columnar member 120, a step portion 140 formed on the outer side of the lower section of the columnar member 120, and a bottom plate 150 formed at the lower end of the columnar member 120 and the step portion 140, and the outer periphery of the bottom plate 150 exceeds the outer periphery of the columnar member 120 and the step portion 140. The notch of the deep groove 130 faces upward, and the bottom surfaces of the deep groove 130, the step portion 140 and the bottom plate 150 are all configured as CNC processing parts.

[0073] Forging III: The chassis 150 is forged to form a plurality of mounting ears 160 and the plurality of connecting blocks 110. In the present embodiment, three mounting ears 160 are formed on the periphery of the columnar member 120, and the three mounting ears 160 are evenly spaced around the periphery of the columnar member 120, one of the mounting ears 160 is formed with a hole 161, and the other two mounting ears 160 are each formed with two holes 161. Three connecting blocks 110 are formed on the periphery of the columnar member 120, and a connecting block 110 is formed between each two adjacent connecting blocks 110, and the three connecting blocks 110 can be evenly spaced around the periphery of the columnar member 120. The positioning hole 111 described above is integrally forged and formed on each connecting block 110, and the positioning hole 111 is a C-shaped positioning hole 111.

[0074] S203 , clamping: clamp the product 100 on the positioning fixture 200 , the positioning fixture 200 has a base 210 and clamping parts 220 corresponding to the positions of each connecting block 110 , the clamping parts 220 are used to press the connecting block 110 onto the base 210 .

[0075] The positioning fixture 200 can be first installed upright on the vertical rotation mechanism 300 (such as a four-axis device or a five-axis device) on the CNC machine tool. The structure of the positioning fixture 200 and the assembly relationship between the positioning fixture 200 and the product 100 can be seen in the above description, and will not be repeated here.

[0076] S204 , CNC processing: performing CNC processing on the product 100 clamped on the positioning fixture 200 .

[0077] In this step, while processing the product 100, the area of ​​the connecting block 110 close to the product 100 is also thinned to facilitate breaking the connecting block 110 after the CNC processing is completed.

[0078] S205 , removing the connecting block 110 : removing the connecting block 110 , and grinding the connecting position on the product 100 connected to the connecting block 110 .

[0079] S206, magnetic grinding: performing magnetic grinding on the outer surface of the product 100 to remove burrs on the surface of the product 100.

[0080] S207, product cleaning. The product cleaning step can be configured based on the requirements of different implementation methods.

[0081] S208, laser engraving. The laser engraving step can be configured based on the requirements of different implementation methods.

[0082] The implementation mode of the present invention is based on the connecting block 110 forged in the forging process, and a positioning fixture 200 is specially assembled with the connecting block 110. The positioning fixture 200 is directly clamped with the connecting block 110 when clamping the product 100, which effectively protects the product 100 from being scratched or crushed, thereby improving the yield rate. Through the specially made positioning fixture 200 structure, the specific position and direction of the product 100 after being clamped on the positioning fixture 200 and the vertical rotating mechanism 300, the product 100 only needs to be clamped once to complete the CNC processing of multiple parts to be processed on the product 100, without the need to load and unload the product 100 multiple times, thereby reducing the number of clamping times, saving manpower, reducing the CT time, and improving the product processing efficiency.

[0083] Please continue to see Figure 6 The present invention also discloses a CNC machining positioning structure for a forged product, which includes a plurality of connecting blocks 110 and a positioning fixture 200. The plurality of connecting blocks 110 are configured to be integrally formed on the periphery of the product 100 during forging. The positioning fixture 200 is configured to include the base 210 and a plurality of clamping parts 220 corresponding to the plurality of connecting blocks 110, and the plurality of clamping parts 220 are used to press the connecting blocks 110 on the base 210. The specific structures of the positioning fixture 200 and the connecting blocks 110 are described above and will not be repeated here.

[0084] In the embodiment of the present invention, the base 210 exposes the part to be processed at the bottom of the product 100 through the hollow part 211, and after the positioning fixture 200 is assembled on the vertical rotation mechanism 300, each part to be processed of the product 100 coincides with the rotation path of the vertical rotation mechanism 300, so that each part to be processed can face the processing spindle under the rotation of the vertical rotation mechanism 300. When processing each part to be processed, it is not necessary to remove it from the original positioning fixture 200 and then install it on another positioning fixture 200 that makes the part to be processed face the positioning spindle direction, and it is only necessary to rotate the part to be processed by the vertical rotation mechanism 300 to face the processing spindle direction.

[0085] The above embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A CNC machining positioning method for forging products. include: Forging: Forging the blank to form the product and several connected blocks connected to the periphery of the product; Clamping: Clamp the product on a positioning fixture, the positioning fixture has a base and a clamping part corresponding to the position of each connecting block, the clamping part is used to press the connecting block on the base; CNC machining: CNC machining is performed on the product clamped on the positioning fixture.

2. The CNC machining positioning method for forging products according to claim 1, Features: The plurality of connecting blocks are formed at the bottom end of the product, and the lower surfaces of the plurality of connecting blocks and the bottom end surface of the product are located in the same plane.

3. The CNC machining positioning method for forging products according to claim 1, Features: The plurality of connecting blocks are each formed with a positioning hole, and the positioning hole can be configured as a C-shaped hole or a U-shaped hole; A positioning column matched with the positioning hole is arranged at a position corresponding to each connecting block on the base, and the height of the positioning column is lower than the height of the connecting block.

4. The CNC machining positioning method for forging products according to claim 1, Features: The positioning fixture is vertically arranged on a vertical rotating mechanism. When the product is clamped on the positioning fixture, the axis direction of the product and the rotation axis direction of the vertical rotating mechanism are perpendicular to each other on a horizontal plane. The product has multiple parts to be processed, and the multiple parts to be processed partially overlap with the rotation path of the vertical rotation mechanism. When processing each part to be processed, the vertical rotation mechanism drives the positioning fixture to rotate vertically so that each part to be processed of the product is facing the processing spindle.

5. The CNC machining positioning method for forging products according to claim 4, Features: The upper end, the side and the bottom of the product are configured as the parts to be processed; when the product is clamped on the positioning fixture, the bottom of the product faces the base of the positioning fixture; a hollow part is formed on the base of the product for the bottom of the product to be exposed outside; The CNC processing steps include: When CNC machining the upper end of the product, the vertical rotating mechanism is rotated vertically so that the upper end of the product faces upward, and the machining spindle performs CNC machining on the upper end of the product; When CNC machining the side of the product, the vertical rotation mechanism is rotated vertically so that the side of the product faces upward, and the machining spindle performs CNC machining on the side of the product; When CNC processing the bottom end of the product, the vertical rotating mechanism is rotated vertically so that the bottom end of the product is upward through the hollow part, and the processing spindle passes through the hollow part to perform CNC processing on the bottom end of the product.

6. The CNC machining positioning method for forging products according to claim 1, It is characterized in that In the CNC processing step, a portion of the connecting block close to the product is also thinned.

7. The CNC machining positioning method for forging products according to claim 1, It is characterized in that The forging step includes: Forging I: Form a shallow groove on the upper end of the blank; Forging II: Continue forging the blank to form a columnar member, a deep groove formed in the columnar member, a step portion formed on the outer side of the lower section of the columnar member, and a bottom plate formed at the lower end of the columnar member and the step portion, wherein the outer periphery of the bottom plate exceeds the outer periphery of the columnar member and the step portion; the deep groove, the step portion, and the bottom surface of the bottom plate are all configured as the parts to be processed; Forging III: Forging the chassis to form a plurality of mounting ears and the plurality of connecting blocks.

8. A method for processing a forging product, The following steps are involved: Raw material cutting: cutting the cylindrical raw material to form blanks; Forging: Forging the blank to form the product and several connected blocks connected to the periphery of the product; Clamping: Clamp the product on a positioning fixture, the positioning fixture has a base and a clamping part corresponding to the position of each connecting block, the clamping part is used to press the connecting block on the base; CNC machining: CNC machining is performed on the product clamped on the positioning fixture; Removing the connecting block: remove the connecting block and grind the connecting position on the product that is connected to the connecting block; Magnetic grinding: Magnetic grinding is performed on the outer surface of the product to remove burrs on the surface of the product.

9. A CNC machining positioning structure for forging products. It is characterized in that include: A plurality of connecting blocks are configured to be integrally formed on the periphery of the product during forging; The positioning fixture is configured to include a base and a plurality of clamping parts arranged corresponding to the plurality of connecting blocks, and the plurality of clamping parts are used to press the connecting blocks onto the base.

10. The CNC machining positioning structure for forging products according to claim 9, Features: The plurality of connecting blocks are each formed with a positioning hole, and the positioning hole can be configured as a C-shaped hole or a U-shaped hole; Positioning columns are provided on the base at positions corresponding to the positioning holes, and the height of the positioning columns is lower than the height of the connecting block; a hollow portion is formed on the base for the bottom end of the product, and the bottom end of the product is exposed to the outside through the hollow portion.

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