Machining method for producing mold

Abstract

The invention relates to the technical field of production and manufacturing, and discloses a machining method for producing a mold, which comprises the following steps: determining a flash, a milling hole and a tapping thread corresponding to a mold core based on a mold core drawing file, and obtaining machining parameters of the flash, the milling hole and the tapping thread, the machining parameters comprising a milling balance parameter and a dynamic precision compensation parameter; wherein the milling balance parameters comprise machining parameters of a machining tool, and the cutting length and the cutting width of a milling position when the mold core is subjected to flash machining, hole milling and thread tapping on the basis of the machining parameters of the machining tool; the dynamic precision compensation parameters are based on the milling balance parameters so as to determine the wear change of a machining tool for machining the flash, the milling hole and the tapping thread of the mold core, so that the dynamic precision compensation parameters corresponding to the cutting stress parameters of the machining tool at different milling positions are determined. The abrasion loss of the machining tool in the machining process is supplemented, and therefore the machining precision of the die is improved.

Description

Technical Field

[0001] The invention relates to the technical field of production and manufacturing, and in particular to a processing method for producing a mold. Background Art

[0002] A mold is a variety of molds and tools used in industrial production to obtain the desired products by methods such as injection molding, blow molding, extrusion, die casting or forging, smelting, stamping, and stretching. Specifically, a mold is a tool used to shape an object, which is composed of various parts. Different types of molds have different structures. It mainly realizes the processing of the shape of the object by changing the physical state of the molded material. Therefore, the mold is an important tool in industrial production. However, the current production and processing technology of molds is still relatively traditional, has certain pollution, and does not conform to the concept of sustainable development.

[0003] In order to solve the above technical problems, a Chinese patent document (publication number CN103464996A) discloses a mold production process, which includes the following steps: material selection and preliminary processing; mold frame processing, which includes panel processing, ejector fixing plate processing, and bottom plate processing; mold core processing, which includes flash, rough grinding, milling machine processing, bench processing, and rough processing; mold parts processing, which includes slide processing, clamping block processing, diverter cone gate sleeve processing, insert processing; inspection and assembly into storage.

[0004] Although the production process of the mold of the above technical solution is simple and controllable, in mold processing, core processing is a common processing method. In the existing mold processing method, the precision of the mold core obtained is not high, which leads to low precision of the processed mold and cannot meet the industry's high quality requirements for molds. Summary of the invention

[0005] The present invention is intended to provide a processing method for producing molds, which can solve the technical problem that in the prior art, mold core processing is a common processing method in mold processing. In the existing mold processing method, the mold core obtained by processing is not precise, which leads to low precision of the processed mold and cannot meet the industry's high quality requirements for the mold.

[0006] In order to achieve the above object, the present invention adopts the following technical scheme:

[0007] 1) A processing method for producing a mold, comprising:

[0008] Based on the mold core drawing, determine the flash, milling hole and tapping thread corresponding to the mold core, and obtain the processing parameters of the flash, milling hole and tapping thread, wherein the processing parameters include milling balance parameters and dynamic precision compensation parameters thereof;

[0009] The milling balance parameters include the processing parameters of the machining tool, and the cutting length and cutting width of the milling position when the mold core is processing flash, milling holes and tapping threads based on the processing parameters of the machining tool;

[0010] The dynamic precision compensation parameters are based on the milling balance parameters to determine the wear changes of the machining tools for machining flash, milling holes and tapping threads of the mold core, thereby determining the dynamic precision compensation parameters corresponding to the cutting force parameters of the machining tools at different milling positions.

[0011] The dynamic precision supplementary parameters of the present invention obtain the wear changes of the machining tools for processing flash, milling holes and tapping threads of the mold core based on the milling balance parameters, so as to adjust the machining tools for processing flash, milling holes and tapping threads of the mold core to supplement the wear of the machining tools during the machining process, thereby improving the machining precision of the mold.

[0012] 2) A processing method for producing a mold according to 1), wherein based on the mold core drawing, the flash, milling hole and tapping thread corresponding to the mold core are determined, and the processing parameters of the flash, milling hole and tapping thread are obtained, including the following steps:

[0013] Step 1: Determine the mold core drawing to be processed, and determine the data of the flash, milling hole and tapping thread in the mold core drawing;

[0014] Step 2: Based on step 1, the processing tool of the milling machine processes the flash of the mold core to ensure the verticality and parallelism of the processing flash;

[0015] Step 3: Based on step 2, the mold core is corrected and pressed by a milling machine, and the milling tool of the milling machine is used to process the milling hole and the R angle;

[0016] Step 4: Based on step 3, tapping is performed on the mold core on a milling machine. The tapping cutting speed is determined by the wear state of the machining tool.

[0017] 3) A processing method for producing a mold according to 2), wherein:

[0018] In step three, the milling holes include screw holes, ejector holes and threading holes.

[0019] 4) A processing method for producing a mold according to 1), wherein the milling balancing parameters include processing parameters of a processing tool, and based on the processing parameters of the processing tool, the cutting length and cutting width of the milling position when processing flash, milling holes and tapping threads on the mold core, comprising the following steps:

[0020] Step 1: The machining parameters of the machining tool include machining speed, machining depth, feed rate, tool profile error, milling balance parameters and dynamic precision compensation parameters;

[0021] Step 2: Obtain the processing parameters in step 1 to select the corresponding processing tool;

[0022] Step 3: Use the machining tool in step 2 to mill the flash, milling holes and tapping threads of the mold core. Determine the cutting length and cutting width before the machining process. During the cutting process, monitor the machining tool based on the milling balance parameters and dynamic precision compensation parameters, and can replace it in real time.

[0023] 5) A processing method for producing a mold according to 4), wherein:

[0024] In step one, the milling balance parameters are used to characterize the parameters that make the machining tool receive balanced forces at various cutting positions of the mold core to be machined.

[0025] 6) A processing method for producing a mold according to 5), wherein:

[0026] The milling balancing parameters include a tool path spacing, where the tool path spacing is the spacing between adjacent machining tool machining paths.

[0027] 7) A processing method for producing a mold according to 1), wherein the dynamic precision compensation parameter is based on the milling balance parameter to determine the wear change of the machining tool for machining flash, milling holes and tapping threads of the mold core, thereby determining the dynamic precision compensation parameter corresponding to the cutting force parameters of the machining tool at different milling positions, comprising the following steps:

[0028] Step 1: During the core processing, collect the first force parameters of each cutting position of the core to be processed in the milling balance parameter at a certain time point, and collect the second force parameters of each cutting position of the core to be processed in the milling balance parameter at the next time point;

[0029] Step 2: Compare the first force parameter with the second force parameter. When the second force parameter is equal to the first force parameter, it is determined that the machining tool is operating normally. When the second force parameter is greater than the first force parameter, the dynamic precision compensation parameter corresponding to the cutting force parameter of the machining tool at different milling positions is used to adjust the machining tool state.

[0030] 8) A processing method for producing a mold according to 7), wherein:

[0031] In step 2, dynamic accuracy compensation for the machining tool includes compensation for machining speed of the machining tool, compensation for cutting depth of the machining tool, and compensation for tool feed of the machining tool.

[0032] 9) A processing method for producing a mold according to 7), wherein:

[0033] In step one, the first force parameter is the cutting force exerted on the surface of each cutting position of the mold core to be processed at a certain point in time; the second force parameter is the cutting force exerted on the surface of each cutting position of the mold core to be processed at a next point in time.

[0034] 10) A processing method for producing a mold according to 7), wherein:

[0035] The processing tool state is that during the milling machine processing process, the vibration of the flash, milling hole and tapping thread of the milling machine processing mold core is within the normal range.

[0036] Compared with the prior art, the present invention also has the following technical effects:

[0037] Compared with the prior art, the present invention determines the tool path spacing of the machining tool at different cutting positions based on the chip length and chip width of the machining tool at different cutting positions of the mold core to be processed, so that the cutting state of the machining tool at different cutting positions is balanced. By reducing tool wear and making the machining tool cut evenly at different cutting positions, the machining accuracy of the mold core is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 The present invention is a framework diagram of a processing method for producing a mold. DETAILED DESCRIPTION

[0039] The following is further described in detail through specific implementation methods:

[0040] For example, see Figure 1 As shown, the processing method for producing the mold in this embodiment includes determining the flash, milling holes and tapping threads corresponding to the mold core based on the mold core drawing, and obtaining the processing parameters of the flash, milling holes and tapping threads, and the processing parameters include milling balance parameters and dynamic precision compensation parameters thereof; wherein, the milling balance parameters include the processing parameters of the processing tool, and the cutting length and cutting width of the milling position when the flash, milling holes and tapping threads are processed on the mold core based on the processing parameters of the processing tool; the dynamic precision compensation parameters are based on the milling balance parameters to determine the wear changes of the processing tool for processing the flash, milling holes and tapping threads of the mold core, thereby determining the dynamic precision compensation parameters corresponding to the cutting force parameters of the processing tool at different milling positions.

[0041] The dynamic precision supplement parameters of this embodiment obtain the wear changes of the machining tools for processing burrs, milling holes and tapping threads of the core based on the milling balance parameters, so as to adjust the machining tools for processing burrs, milling holes and tapping threads of the core to supplement the wear of the machining tools during the machining process, thereby improving the machining accuracy of the mold.

[0042] In addition, based on the mold core drawing, determining the flash, milling hole and tapping thread corresponding to the mold core, and obtaining the processing parameters of the flash, milling hole and tapping thread include the following steps:

[0043] Step 1: Determine the mold core drawing to be processed, and determine the data of the flash, milling hole and tapping thread in the mold core drawing;

[0044] Step 2: Based on step 1, the processing tool of the milling machine processes the flash of the mold core to ensure the verticality and parallelism of the processing flash;

[0045] Step 3: Based on step 2, the mold core is corrected and pressed by a milling machine, and the milling tool of the milling machine is used to process the milling hole and the R angle;

[0046] Step 4: Based on step 3, tapping is performed on the mold core on a milling machine. The tapping cutting speed is determined by the wear state of the machining tool.

[0047] In step three, the milling holes include screw holes, ejector holes and threading holes.

[0048] In more detail, the milling balancing parameters in this embodiment include the processing parameters of the machining tool, and the cutting length and cutting width of the milling position when machining flash, milling holes and tapping threads in the mold core based on the processing parameters of the machining tool include the following steps:

[0049] Step 1: The machining parameters of the machining tool include machining speed, machining depth, feed rate, tool profile error, milling balance parameters and dynamic precision compensation parameters;

[0050] Step 2: Obtain the processing parameters in step 1 to select the corresponding processing tool;

[0051] Step 3: Use the machining tool in step 2 to mill the flash, milling holes and tapping threads of the mold core. Determine the cutting length and cutting width before the machining process. During the cutting process, monitor the machining tool based on the milling balance parameters and dynamic precision compensation parameters, and can replace it in real time.

[0052] In step 1, the milling balance parameter is used to characterize the parameter that makes the machining tool bear the force balance at each cutting position of the mold core to be machined. The milling balance parameter includes the tool path spacing, which is the spacing between adjacent machining tool machining paths.

[0053] The dynamic accuracy compensation parameters are based on the milling balance parameters to determine the wear changes of the machining tools for processing flash, milling holes and tapping threads in the mold core, so as to determine the dynamic accuracy compensation parameters corresponding to the cutting force parameters of the machining tools at different milling positions, including the following steps:

[0054] Step 1: During the core processing, collect the first force parameters of each cutting position of the core to be processed in the milling balance parameters at a certain time point, and collect the second force parameters of each cutting position of the core to be processed in the milling balance parameters at the next time point; in step 1, the first force parameter is the cutting force on the surface of each cutting position of the core to be processed at a certain time point; the second force parameter is the cutting force on the surface of each cutting position of the core to be processed at the next time point.

[0055] Step 2: Compare the first force parameter with the second force parameter. When the second force parameter is equal to the first force parameter, it is determined that the machining tool is operating normally. When the second force parameter is greater than the first force parameter, the dynamic precision compensation parameter corresponding to the cutting force parameter of the machining tool at different milling positions is used to adjust the machining tool state.

[0056] In step 2, dynamic accuracy compensation for the machining tool includes compensation for machining speed of the machining tool, compensation for cutting depth of the machining tool, and compensation for tool feed of the machining tool. The machining tool state is that during the milling process, the vibration of the milling die core, milling hole, and tapping thread of the milling machine is within the normal range.

[0057] Based on the chip length and chip width of the machining tool at different cutting positions of the mold core to be processed, the tool path spacing of the machining tool at different cutting positions is determined, so that the cutting state of the machining tool at different cutting positions is balanced. By reducing tool wear and making the machining tool cut evenly at different cutting positions, the mold core processing accuracy is improved.

[0058] The above are only embodiments of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution are not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the technical solution of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A processing method for producing a mold, characterized in that: include: Based on the mold core drawing, determine the flash, milling hole and tapping thread corresponding to the mold core, and obtain the processing parameters of the flash, milling hole and tapping thread, wherein the processing parameters include milling balance parameters and dynamic precision compensation parameters thereof; The milling balance parameters include the processing parameters of the machining tool, and the cutting length and cutting width of the milling position when the mold core is processing flash, milling holes and tapping threads based on the processing parameters of the machining tool; The dynamic precision compensation parameters are based on the milling balance parameters to determine the wear changes of the machining tools for machining flash, milling holes and tapping threads of the mold core, thereby determining the dynamic precision compensation parameters corresponding to the cutting force parameters of the machining tools at different milling positions.

2. A processing method for producing a mold according to claim 1, characterized in that: Based on the mold core drawing, the flash, milling hole and tapping thread corresponding to the mold core are determined, and the processing parameters of the flash, milling hole and tapping thread are obtained, including the following operation steps: Step 1: Determine the mold core drawing to be processed, and determine the data of the flash, milling hole and tapping thread in the mold core drawing; Step 2: Based on step 1, the processing tool of the milling machine processes the flash of the mold core to ensure the verticality and parallelism of the processing flash; Step 3: Based on step 2, the mold core is corrected and pressed by a milling machine, and the milling tool of the milling machine is used to process the milling hole and the R angle; Step 4: Based on step 3, tapping is performed on the mold core on a milling machine. The tapping cutting speed is determined by the wear state of the machining tool.

3. A processing method for producing a mold according to claim 2, characterized in that: In step three, the milling holes include screw holes, ejector holes and threading holes.

4. A processing method for producing a mold according to claim 1, characterized in that: The milling balancing parameters include the processing parameters of the machining tool, and the cutting length and cutting width of the milling position when the mold core is processed with flash, milling holes and tapping threads based on the processing parameters of the machining tool include the following steps: Step 1: The machining parameters of the machining tool include machining speed, machining depth, feed rate, tool profile error, milling balance parameters and dynamic precision compensation parameters; Step 2: Obtain the processing parameters in step 1 to select the corresponding processing tool; Step 3: Use the machining tool in step 2 to mill the flash, milling holes and tapping threads of the mold core. Determine the cutting length and cutting width before the machining process. During the cutting process, monitor the machining tool based on the milling balance parameters and dynamic precision compensation parameters, and can replace it in real time.

5. A processing method for producing a mold according to claim 4, characterized in that: In step one, the milling balance parameters are used to characterize the parameters that make the machining tool receive balanced forces at various cutting positions of the mold core to be machined.

6. A processing method for producing a mold according to claim 5, characterized in that: The milling balancing parameters include a tool path spacing, where the tool path spacing is the spacing between adjacent machining tool machining paths.

7. A processing method for producing a mold according to claim 1, characterized in that: The dynamic precision compensation parameters are based on the milling balance parameters to determine the wear changes of the machining tools for machining flash, milling holes and tapping threads of the mold core, so as to determine the dynamic precision compensation parameters corresponding to the cutting force parameters of the machining tools at different milling positions, including the following steps: Step 1: During the core processing, collect the first force parameters of each cutting position of the core to be processed in the milling balance parameter at a certain time point, and collect the second force parameters of each cutting position of the core to be processed in the milling balance parameter at the next time point; Step 2: Compare the first force parameter with the second force parameter. When the second force parameter is equal to the first force parameter, it is determined that the machining tool is operating normally. When the second force parameter is greater than the first force parameter, the dynamic precision compensation parameter corresponding to the cutting force parameter of the machining tool at different milling positions is used to adjust the machining tool state.

8. A processing method for producing a mold according to claim 7, characterized in that: In step 2, dynamic accuracy compensation for the machining tool includes compensation for machining speed of the machining tool, compensation for cutting depth of the machining tool, and compensation for tool feed of the machining tool.

9. A processing method for producing a mold according to claim 7, characterized in that: In step one, the first force parameter is the cutting force exerted on the surface of each cutting position of the mold core to be processed at a certain point in time; the second force parameter is the cutting force exerted on the surface of each cutting position of the mold core to be processed at a next point in time.

10. A processing method for producing a mold according to claim 7, characterized in that: The processing tool state is that during the milling machine processing process, the vibration of the flash, milling hole and tapping thread of the milling machine processing mold core is within the normal range.

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