A centering punch fast assembling and adjusting process method, electronic equipment, server and storage medium

Abstract

The application provides a process method for quick assembly and adjustment of a centering punch, an electronic device, a server and a storage medium, which is realized by an automobile covering part mold, and the automobile covering part mold comprises an upper die, a punch fixing base, a positioning pin, an internal hexagonal screw, an internal thread positioning pin, a ball locking punch, a lower die, a concave die fixing base and a ball locking concave die. The application has the beneficial effects that the material of the positioning pin is changed to aluminum material, the reference is effectively transmitted, the adjustability is good, the operation is simple, and the operator can quickly and effectively complete the debugging work. In addition, the process method is not only suitable for a punching punch, but also suitable for other parts with centering functions, such as a hole flanging punch, an assembly type part positioning pin and a pilot pin.

Description

Technical Field

[0001] This invention belongs to the field of rapid assembly and adjustment of centering punches, and particularly relates to a process method, electronic equipment, server and storage medium for rapid assembly and adjustment of centering punches. Background Technology

[0002] To improve production efficiency, the automotive body panel mold industry is increasingly using high-precision equipment to ensure machining accuracy, resulting in a decrease in manual labor. For example, in trimming and punching dies, the assembly and blanking clearance of punching punches used to be largely done manually by fitters, which was inefficient. Now, most mold factories use centering punches and CNC equipment to process centering holes, greatly improving the production efficiency of punching punch assembly. Our company, through continuous optimization of workflows and machining assembly operation standards, currently achieves an initial assembly and adjustment pass rate of over 93% using centering punches. However, even so, due to various factors, positional accuracy deviations still occasionally occur. How to quickly achieve the required accuracy for the remaining 7% is a problem that needs to be solved.

[0003] like Figure 1 For existing centering punches, the current machining and assembly process is roughly as follows:

[0004] 1. CNC machine the centering pin hole and screw fixing bottom hole of the upper mold base. At this time, the positioning pin hole of the fixed base is not machined.

[0005] 2. The fitter taps the screw fixing holes, takes the centering punch and fixing seat assembly, and assembles them by positioning them with the locating pin.

[0006] 3. After assembly, close the mold and press for a test punch. First, test press without the part, and check the cutting edge of each punch one by one, for any chipping or blackening. Then, put the part in and test punch, checking the cutting edge of each hole to determine if the cutting edges of the punch and die are uniform.

[0007] 4. If the punch has black marks during the idle stroke or large burrs on one side of the part hole, it indicates that the clearance between the punch and die is abnormal and the position of the punch needs to be adjusted.

[0008] 5. At this point, the locating pin needs to be removed. However, once the pin is removed and reassembled, the reference point is lost because the through hole of the fixing seat screw is too large. In this situation, most mold factories still use the most primitive notching method to solve the problem.

[0009] The current disadvantages of the original adjustment method:

[0010] After discovering uneven punch clearance, the punch position needs to be fine-tuned. This requires removing the locating pin, and for removable pins, the punch fixing block must first be removed, the pin pulled out, and then re-fixed. However, this eliminates the assembly reference. Fine-tuning the clearance still requires the most primitive notching method, which is cumbersome, time-consuming, labor-intensive, and inefficient. Summary of the Invention

[0011] In view of this, the present invention aims to provide a process method, electronic device, server and storage medium for rapid assembly and adjustment of a centering punch, so as to solve at least one of the problems existing in the prior art.

[0012] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0013] A process for quickly assembling and adjusting a centering punch is implemented using an automotive body panel mold. The automotive body panel mold includes an upper mold, a punch fixing seat, a locating pin, an internal hexagon screw, an internally threaded locating pin, a ball-locking punch, a lower mold, a die fixing seat, and a ball-locking die. The upper mold is located above the lower mold. The punch fixing seat is connected to the bottom of the upper mold by an internal hexagon screw and an internally threaded locating pin. The ball-locking punch is located inside the punch fixing seat and is connected to the bottom of the upper mold by a locating pin. The top of the lower mold is connected to the die fixing seat by a die pad, and the die fixing seat is equipped with a ball-locking die.

[0014] The process includes the following steps:

[0015] S1, the positioning pin hole of the CNC machining base and the screw fixing bottom hole of the internal hexagon screw. At this time, the internal thread positioning pin hole is not machined.

[0016] S2. The fitter taps the screw fixing holes, takes the ball locking punch and fixing seat assembly, and assembles them by positioning them with the locating pins.

[0017] S3. After assembly, close the mold and press the press for a test punch. First, press without the part and check the cutting edge of the ball locking punch one by one to see if there is any biting or blackening. Then, put the part in and press the press to check the cutting edge of each hole and judge whether the cutting edge of the punch and die is uniform.

[0018] S4. If the punch has black marks during the idle stroke or the burrs on one side of the part hole are large, it indicates that the clearance between the punch and die is abnormal and the position of the punch needs to be adjusted.

[0019] S5. At this point, the locating pin needs to be removed, and the gap needs to be finely adjusted using the preferred method to complete the assembly.

[0020] Furthermore, in step S5, the preferred solution is method A, which includes:

[0021] Remove the locating pin and use a reamer to enlarge the centering pin hole on the punch holder. The original locating pin fit is φ6H7 / m6. The single-sided punching clearance for thin plate punching is 0.03-0.05mm, so the enlargement amount should be no more than 0.04mm in diameter. After enlarging the hole, reassemble and test punch using the locating pin. If deviation is found, there is no need to disassemble. Since there is a certain gap between the pin and the hole at this time, it can be finely adjusted. After the adjustment is qualified, make the pin hole of the holder to complete the assembly.

[0022] Furthermore, in step S5, the preferred solution is method B, which includes:

[0023] A1. Self-made aluminum pins of the same size and specifications as the positioning pins used are stored in the warehouse for future use. The original positioning pins purchased together with the punches were made of steel and were hardened, so they had a certain hardness and could not be adjusted after assembly.

[0024] A2. After assembling and testing with the original locating pins, if an abnormal gap is found in the ball locking punch, the locating pins are removed and replaced with aluminum pins for reassembly. First, the fixing screws are loosened, and the fixing seat is tapped and adjusted according to the gap deviation. Since the pins serve as a reference and are made of aluminum, which is relatively soft, the aluminum pins undergo plastic deformation during fine-tuning of the gap, ensuring the adjustability of the gap. After fine-tuning and testing, once the gap is qualified, the fitter tightens the fixing screws and makes the pin holes for the fixing seat. The assembly is now complete.

[0025] Furthermore, the automotive body panel mold also includes a punch pad and a die pad, and the bottom of the upper mold is fitted with a punch fixing seat via the punch pad.

[0026] Furthermore, the automotive body panel mold also includes steel balls, with steel balls provided on one side of the ball locking die.

[0027] Furthermore, the automotive body panel mold also includes a threaded plug block, and the punch fixing seat is also provided with a threaded plug block, which cooperates with the internal threaded locating pin.

[0028] An electronic device includes a processor and a memory communicatively connected to the processor and used to store processor-executable instructions, characterized in that: the processor is used to execute the process method for rapid assembly and adjustment of the centering punch.

[0029] A server includes at least one processor and a memory communicatively connected to the processor, the memory storing instructions executable by the at least one processor, the instructions being executed by the processor to cause the at least one processor to perform the process method for rapid assembly of a centering punch.

[0030] A computer-readable storage medium storing a computer program, the computer program being executed by a processor, wherein the process method for rapid assembly and adjustment of the centering punch is described.

[0031] Compared with existing technologies, the process method, electronic equipment, server, and storage medium for rapid assembly and adjustment of a centering punch described in this invention have the following advantages:

[0032] The present invention discloses a process method, electronic equipment, server and storage medium for quick assembly and adjustment of a centering punch. By changing the material of the positioning pin to aluminum, the reference is effectively transferred and adjustable. The operation is simple and allows operators to complete the debugging work more quickly and effectively. In addition, this process method is not only applicable to punching punches, but also to other components with centering functions, such as piercing punches, positioning pins of assembled parts, guide pins and so on. Attached Figure Description

[0033] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0034] Figure 1 This is a schematic diagram of a centering punch in the prior art;

[0035] Figure 2 This is a schematic diagram of an automotive body panel mold according to an embodiment of the present invention;

[0036] Figure 3 This is a schematic diagram of the overall assembly of the punching die according to Example 1 of the present invention;

[0037] Figure 4 This is a schematic diagram of the upper die and punching punch described in Example 1 of the present invention. Detailed Implementation

[0038] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0039] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0040] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0041] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0042] like Figure 2 As shown, a process for quick assembly and adjustment of a centering punch is implemented using an automotive body panel mold. The automotive body panel mold includes an upper mold, a punch fixing seat, a punch pad, a locating pin, an internal hexagonal screw, an internal threaded locating pin, a threaded plug, a ball-locking punch, a lower mold, a die fixing seat, a ball-locking die, a steel ball, and a die pad. The upper mold is located above the lower mold. The bottom of the upper mold is fitted with the punch fixing seat via the punch pad. The punch fixing seat and the bottom of the upper mold are also connected by an internal hexagonal screw and an internal threaded locating pin. The punch fixing seat is also provided with a threaded plug, which cooperates with the internal threaded locating pin. The punch fixing seat is provided with a ball-locking punch. The ball-locking punch is connected to the bottom of the upper mold via a locating pin passing through the punch pad. The top of the lower mold is connected to the die fixing seat via the die pad. The die fixing seat is provided with a ball-locking die, and a steel ball is provided on one side of the ball-locking die.

[0043] The process includes the following steps:

[0044] S1, the positioning pin hole of the CNC machining base and the screw fixing bottom hole of the internal hexagon screw. At this time, the internal thread positioning pin hole is not machined.

[0045] S2. The fitter taps the screw fixing hole, takes the centering punch (ball locking punch) and fixing seat assembly, and assembles them by positioning with the positioning pin;

[0046] S3. After assembly, close the mold and press the press for a test punch. First, test the press without the part, and check the cutting edge of each punch one by one to see if there is any chipping or blackening. Then, put the part in and test the punch to check the cutting edge of each hole and judge whether the cutting edge of the punch and die is uniform.

[0047] S4. If the punch has black marks during the idle stroke or the burrs on one side of the part hole are large, it indicates that the clearance between the punch and die is abnormal and the position of the punch needs to be adjusted.

[0048] S5. At this point, the locating pin needs to be removed, and the gap needs to be finely adjusted using the preferred method to complete the assembly.

[0049] As mentioned above, to fine-tune the clearance, the locating pin on the original punch must be removed. However, reassembling the punch after removal results in the loss of the assembly reference. Through long-term exploration and practice, this application has developed the following two solutions to address the above problems, ensuring that the punch position is adjustable without losing the assembly reference.

[0050] Method A

[0051] The locating pin is removed, and the centering pin hole on the upper die base is enlarged using a reamer. The original locating pin fits φ6H7 / m6. The single-sided punching clearance for thin sheet metal is generally 0.03-0.05mm. Even with deviations when using a centering punch, the actual deviation is generally no more than 0.03mm. Therefore, the enlargement amount should ideally not exceed 0.04mm in diameter. After enlarging, a test punch is performed using the locating pin again. If deviation is found, disassembly is unnecessary, as there is a certain gap between the pin and the hole, allowing for fine-tuning. After successful adjustment, the fixing seat pin hole is made to complete the assembly. This solution is more efficient than the original, but strict control of the enlargement tolerance is required. If the tolerance is exceeded, reassembly may result in risks such as chipping. Therefore, I have applied to develop another solution.

[0052] Method B

[0053] 1) Self-made aluminum pins of the same size and specifications as the locating pins used were stored in the warehouse for future use. The locating pins originally purchased with the punch were generally made of steel and were hardened, so they could not be adjusted after assembly.

[0054] 2) When abnormal clearance is found in punches after assembly and trial punching using the original locating pins, the locating pins are removed and replaced with aluminum pins for reassembly. First, the fixing screws are loosened, and the fixing seat is adjusted by tapping according to the clearance deviation. Because the pin serves as a reference, the original reference remains unchanged after reassembly. Since the pin is made of aluminum, it is relatively soft, and plastic deformation occurs during fine-tuning of the clearance, ensuring the adjustability of the clearance. After fine-tuning and trial punching, once the clearance is acceptable, the fitter tightens the fixing screws and drills the pin holes in the fixing seat, thus completing the assembly. This method ensures that the reference does not deviate, is adjustable, and is convenient and risk-free to operate. After trial use, this application has designated method B as the preferred solution and is promoting its application.

[0055] Advantages of this invention:

[0056] By changing the material of the locating pin to aluminum, the reference can be effectively transferred and adjusted. The operation is simple and allows operators to complete the debugging work more quickly and effectively. In addition, this process method is not only applicable to punching punches, but also to other components with centering functions, such as flipping punches, locating pins of assembled parts, and guide pins.

[0057] The present invention also proposes an electronic device, including a processor and a memory communicatively connected to the processor and used to store executable instructions of the processor, characterized in that: the processor is used to execute the process method for rapid assembly and adjustment of the centering punch.

[0058] The present invention also proposes a server, including at least one processor and a memory communicatively connected to the processor, the memory storing instructions executable by the at least one processor, the instructions being executed by the processor to cause the at least one processor to perform the process method for rapid assembly and adjustment of the centering punch.

[0059] The present invention also proposes a computer-readable storage medium storing a computer program, wherein the computer program is executed by a processor to perform the aforementioned process method for rapid assembly and adjustment of the centering punch.

[0060] Example 1

[0061] like Figures 3-4 As shown, Figure 3 This is an assembly drawing of a punching die. Figure 4 This is a diagram of the upper die and the punching punch.

[0062] The centering punch in this application is a purchased standard part with a built-in steel tail pin. However, the steel tail pin is too hard, making it difficult to adjust. The tail pin hole on the punch mounting surface is CNC machined, and the CNC precision ensures that most of them can be directly installed and used. However, a small number of them still have deviations after installation, resulting in uneven punching clearance. By using the process method of this application, the steel tail pin on the original component is replaced with an aluminum tail pin, which makes it much easier to adjust the punching clearance.

[0063] This application is a special project of Hebei Province's Major Science and Technology Support Program for Innovative Application Scenarios, project number 242Q1803Z.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A process method for rapid assembly and adjustment of a centering punch, characterized in that: The process is achieved using an automotive body panel mold. The automotive body panel mold includes an upper mold, a punch fixing seat, a locating pin, an internal hexagon screw, an internally threaded locating pin, a ball-locking punch, a lower mold, a die fixing seat, and a ball-locking die. The upper mold is located above the lower mold. The punch fixing seat is connected to the bottom of the upper mold via an internal hexagon screw and an internally threaded locating pin. The punch fixing seat contains a ball-locking punch, which is connected to the bottom of the upper mold via a locating pin. The top of the lower mold is connected to the die fixing seat via a die pad. The die fixing seat contains a ball-locking die. The process includes the following steps: S1, the positioning pin hole of the CNC machining base and the screw fixing bottom hole of the internal hexagon screw. At this time, the internal thread positioning pin hole is not machined. S2. The fitter taps the screw fixing holes, takes the ball locking punch and fixing seat assembly, and assembles them by positioning them with the locating pins. S3. After assembly, close the mold and press the press for a test punch. First, press without the part and check the cutting edge of the ball locking punch one by one to see if there is any biting or blackening. Then, put the part in and press the press to check the cutting edge of each hole and judge whether the cutting edge of the punch and die is uniform. S4. If the punch has black marks during the idle stroke or the burrs on one side of the part hole are large, it indicates that the clearance between the punch and die is abnormal and the position of the punch needs to be adjusted. S5. At this point, the locating pin needs to be removed, and the clearance needs to be finely adjusted using method A or method B to complete the assembly. Method A includes: Remove the locating pin and use a reamer to enlarge the centering pin hole on the punch holder. The original locating pin fit is φ6H7 / m6. The single-sided punching clearance for thin plate punching is 0.03-0.05mm, so the enlargement amount should be no more than 0.04mm in diameter. After enlarging the hole, reassemble and test punch using the locating pin. If deviation is found, disassembly is not necessary. Since there is a certain gap between the pin and the hole at this time, fine adjustment can be made. After the adjustment is qualified, make the internal thread locating pin hole of the holder to complete the assembly. Method B includes: A1. Self-made aluminum pins with the same size and specifications as the positioning pins used are stored in the warehouse for future use. The original positioning pins purchased together with the punches were made of steel and were hardened, so they had a certain hardness and could not be adjusted after assembly. A2. After assembling and testing with the original locating pins, if an abnormal gap is found in the ball locking punch, the locating pins are removed and replaced with aluminum pins for reassembly. First, the fixing screws are loosened, and the fixing seat is tapped and adjusted according to the gap deviation. Since the pins serve as a reference and are made of aluminum, which is relatively soft, the aluminum pins undergo plastic deformation during fine-tuning of the gap, ensuring the adjustability of the gap. After fine-tuning and testing, once the gap is qualified, the fitter tightens the fixing screws and makes the internal threaded locating pin hole in the fixing seat. The assembly is now complete.

2. The process method for rapid assembly and adjustment of a centering punch according to claim 1, characterized in that: The automotive body panel mold also includes a punch pad and a die pad, and the bottom of the upper mold is fitted with a punch fixing seat through the punch pad.

3. The process method for rapid assembly and adjustment of a centering punch according to claim 1, characterized in that: The automotive body panel mold also includes steel balls, with steel balls provided on one side of the ball-locking die.

4. The process method for rapid assembly and adjustment of a centering punch according to claim 1, characterized in that: The automotive body panel mold also includes a threaded plugging block, and the punch fixing seat is also provided with a threaded plugging block, which cooperates with the internal threaded locating pin.

5. An electronic device, comprising a processor and a memory communicatively connected to the processor and used for storing processor-executable instructions, characterized in that: The processor is used to execute the process method for rapid assembly and adjustment of the centering punch as described in any one of claims 1-4.

6. A server, characterized in that: It includes at least one processor and a memory communicatively connected to the processor, the memory storing instructions executable by the at least one processor, the instructions being executed by the processor to cause the at least one processor to perform the process method for rapid assembly and adjustment of the centering punch as described in any one of claims 1-4.

7. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by the processor, it implements the process method for rapid assembly and adjustment of the centering punch as described in any one of claims 1-4.

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