A method, apparatus and storage medium for hammering a metal piece

Abstract

Embodiments of the present application provide a hammering processing method and device for metal parts and a storage medium. The method comprises: obtaining processing information of a metal part to be processed in a limiting groove; setting a knocking force and a knocking frequency of each knocking unit according to the processing information; setting a driving power of a driving module according to the knocking force and the knocking frequency; and controlling the driving module to drive the metal part to be processed to move in the limiting groove at the driving power, so that each knocking unit knocks the metal part to be processed at the knocking force and the knocking frequency to obtain a target hammered metal part. The knocking force and the knocking frequency are set automatically after the processing information is obtained, and the driving module is used to drive the metal part to be processed, so that a knocking surface forms randomly distributed overlapping tracks, a natural and irregular continuous hammered texture is generated, the hammered pattern is changeable, the hammered decoration effect is good, the entire hammered processing process is automatically completed, and the hammered processing efficiency is high.

Description

Technical Field

[0001] This invention relates to, but is not limited to, the field of metal processing technology, and particularly to a method, equipment, and storage medium for hammering metal parts. Background Technology

[0002] In existing technologies, when hammering metal parts such as frames and aluminum strips, it relies on manual hammering or single-station mechanical hammering, which results in low processing efficiency. Furthermore, single-station mechanical hammering uses a fixed trajectory for hammering, resulting in a limited variety of hammer patterns and poor decorative effect. Summary of the Invention

[0003] The main objective of this invention is to provide a method, equipment, and storage medium for hammering metal parts, which can improve the efficiency of hammering metal parts and the decorative effect of hammering.

[0004] In a first aspect, embodiments of the present invention provide a method for hammering a metal part, applied to a hammering processing equipment. The hammering processing equipment includes a driving module, a fixing module, and a striking module. The fixing module is provided with a limiting groove, and the striking module includes a plurality of striking units arranged along the limiting groove. The hammering method for the metal part includes: Obtain the processing information of the metal part to be processed on the limiting groove. The processing information represents the material information, shape information, impact surface information, preset impact depth information and preset hammer mark density information of the metal part to be processed. The striking force and striking frequency of each striking unit are set according to the processing information; The driving power of the driving module is set according to the striking force and the striking frequency; The drive module is controlled to drive the metal part to be processed to move within the limiting groove with the drive power, so that each of the striking units strikes the metal part to be processed with the striking force and the striking frequency to obtain the target hammered metal part.

[0005] In some optional embodiments, setting the striking force and striking frequency of each of the striking units according to the processing information includes: The material reference strength coefficient is determined based on the material information and the first preset mapping table, wherein the first preset mapping table is used to indicate the mapping relationship between the material information and the material reference strength coefficient. The reference force is determined based on the preset impact depth information, the material reference force coefficient, and the material information; The striking force is obtained by correcting the reference force based on the striking surface information and the shape information; The material damping correction coefficient is determined based on the material information and the second preset mapping table, wherein the second preset mapping table is used to indicate the mapping relationship between the material information and the material damping correction coefficient. The reference frequency is determined based on the preset hammer pattern density information, the material damping correction coefficient, and the preset feed rate. The preset feed rate represents the moving speed of the metal part to be processed on the limiting groove. The striking frequency is obtained by correcting the reference frequency based on the striking surface information and shape information.

[0006] In some optional embodiments, obtaining the striking force after correcting the reference force based on the striking surface information and the shape information includes: For each of the aforementioned striking units, the following is performed: The target striking area is determined based on the shape information and the pose information between the striking unit and the metal part to be processed. A first correction coefficient is determined based on the surface type of the target striking area and a third preset mapping table, wherein the third preset mapping table is used to indicate the mapping relationship between the surface type and the first correction coefficient. A second correction coefficient is determined based on the impact surface information of the target impact area and a fourth preset mapping table, wherein the fourth preset mapping table is used to indicate the mapping relationship between the impact surface information and the second correction coefficient. The striking force is obtained by correcting the reference force according to the first correction factor and the second correction factor.

[0007] In some optional embodiments, determining the reference frequency based on the preset hammerstone density information, the material damping correction coefficient, and the preset feed rate includes: For each of the aforementioned striking units, the following is performed: Obtain the effective processing width of the striking unit along the width direction of the metal part to be processed; The unit processing area is calculated based on the effective processing width and the preset feed speed; The baseline number of taps per unit is calculated based on the preset hammer pattern density information and the unit processing area. The reference frequency is obtained by correcting the reference unit number of taps according to the material damping correction coefficient.

[0008] In some optional embodiments, the step of correcting the reference frequency based on the tapping surface information and shape information to obtain the tapping frequency includes: For each of the aforementioned striking units, the following is performed: The third correction coefficient is determined based on the surface type of the target striking area and the fifth preset mapping table, wherein the fifth preset mapping table is used to indicate the mapping relationship between the surface type and the third correction coefficient. A fourth correction coefficient is determined based on the striking surface information of the target striking area and a sixth preset mapping table, wherein the sixth preset mapping table is used to indicate the mapping relationship between the striking surface information and the fourth correction coefficient. The tapping frequency is obtained by correcting the reference frequency according to the third correction factor and the fourth correction factor.

[0009] In some optional embodiments, after determining the tapping frequency and tapping force of each of the tapping units, the method further includes: Obtain the difference in striking force between adjacent striking units; If the difference in striking force is not within the preset difference range, adjust the striking force between adjacent striking units so that the difference in striking force is within the preset difference range; The phase offset value between adjacent striking units is obtained, and the phase offset value represents the phase difference value of the striking frequency of the adjacent striking units. If the phase offset value is less than a preset offset threshold, the tapping frequency between adjacent tapping units is adjusted so that the phase offset value is greater than or equal to the preset offset threshold.

[0010] In some optional embodiments, the striking unit includes a rotating motor and an eccentric turntable, the eccentric turntable being connected to the rotating motor, and multiple sets of chains being arranged on the eccentric turntable, with metal balls connected to the chains; after setting the striking force and striking frequency of each striking unit according to the processing information, the method further includes: For each of the tapping units, the following is performed: The rotation speed of the rotating motor is determined based on the tapping frequency and the number of chains. The target length of each chain and the target mass of each metal ball are set according to the rotation speed, the striking force, the preset chain length range, and the preset metal ball mass range.

[0011] In some optional embodiments, setting the drive power of the drive module according to the striking force and the striking frequency includes: The total impact energy is calculated based on the striking force and striking frequency of each striking unit; The impact load on the metal part to be processed is determined based on the total impact energy. The resistance force is determined based on the impact load, the weight of the metal part to be processed, and the friction coefficient of the limiting groove. The base power is calculated based on the feed rate and the weight of the metal part to be processed; Obtain the fixed mechanical transmission power loss during the processing; The driving power is calculated based on the base power, the mechanical transmission power loss, and the resistance force.

[0012] In a second aspect, embodiments of the present invention provide a hammering processing device for metal parts, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the hammering processing method for metal parts described in the first aspect.

[0013] Thirdly, embodiments of the present invention provide a computer storage medium storing computer-executable instructions, the computer-executable instructions being used to execute the hammering method for metal parts described in the first aspect.

[0014] The beneficial effects of this invention include: acquiring the processing information of the metal part to be processed on the limiting groove, wherein the processing information characterizes the material information, shape information, striking surface information, preset striking depth information, and preset hammer pattern density information of the metal part to be processed; setting the striking force and striking frequency of each striking unit according to the processing information; setting the driving power of the driving module according to the striking force and striking frequency; controlling the driving module to drive the metal part to be processed to move within the limiting groove with the driving power, so that each striking unit strikes the metal part to be processed with the striking force and striking frequency to obtain the target hammer pattern metal part. In the technical solution of this embodiment, by automatically acquiring the processing information and setting the striking force and striking frequency of each striking unit according to the processing information, and driving the metal part to be processed through the driving module, the striking points form randomly distributed overlapping trajectories on the striking surface, generating natural, irregular continuous hammer pattern textures, with varied hammer pattern styles, good hammer pattern decorative effect, and the entire hammer pattern processing process is automated, resulting in high hammer pattern processing efficiency.

[0015] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description, claims, and drawings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a system platform architecture for performing hammering on metal parts according to an embodiment of the present invention; Figure 2 This is a flowchart of the steps of a hammering process for metal parts provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of a hammer-textured processing device provided in one embodiment of the present invention; Figure 4 This is a schematic diagram of hammering provided in one embodiment of the present invention; Figure 5 This is a schematic diagram of the hammered texture effect provided in one embodiment of the present invention.

[0017] Figure label: System platform architecture 1000, processor 1100, memory 1200; Base module 100, servo motor 200, ball screw 210, fixing module 300, metal part to be processed 400, rotating motor 500, eccentric turntable 510, chain 520, metal ball 530. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0019] It should be noted that although functional modules are divided in the device schematic diagram and a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart. The terms "first," "second," etc., in the specification, claims, or the aforementioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0020] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0021] like Figure 1 As shown, Figure 1 This is a schematic diagram of a system platform architecture for performing a hammering process on metal parts, provided by an embodiment of the present invention.

[0022] exist Figure 1 In the example, the system platform architecture 1000 includes a processor 1100 and a memory 1200, which can be connected via a bus or other means. Figure 1 Taking the example of a connection between China and Israel via a bus.

[0023] Memory 1200, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer-executable programs. Furthermore, memory 1200 may include high-speed random access memory and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some embodiments, memory 1200 may optionally include memory remotely located relative to processor 1100, and these remote memories can be connected to the metal hammering processing equipment via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0024] Those skilled in the art will understand that the system platform architecture 1000 can be applied to 5G communication network systems and subsequent evolved mobile communication network systems, etc., and this embodiment does not specifically limit it.

[0025] It will be understood by those skilled in the art that Figure 1 The system platform architecture 1000 shown does not constitute a limitation on the embodiments of the present invention. It may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0026] Reference Figure 2-5 , Figure 2 The present invention provides a flowchart of a method for hammering metal parts; the method is applied to a hammering equipment for metal parts, the hammering equipment for metal parts includes a drive module, a fixing module 300, and a striking module, the fixing module 300 is provided with a limit groove, and the striking module includes a plurality of striking units arranged along the limit groove. The hammering method for metal parts according to embodiments of the present invention may include, but is not limited to: Step S100: Obtain the processing information of the metal part 400 to be processed on the limiting groove. The processing information represents the material information, shape information, striking surface information, preset striking depth information and preset hammer mark density information of the metal part 400 to be processed. Step S200: Set the striking force and striking frequency of each striking unit according to the processing information; Step S300: Set the driving power of the driving module according to the striking force and the striking frequency; Step S400: Control the drive module to drive the metal part 400 to be processed to move in the limiting groove with the drive power, so that each of the striking units strikes the metal part 400 to be processed with the striking force and the striking frequency to obtain the target hammered metal part.

[0027] It should be noted that the drive module, fixing module 300, and striking module of this application are all mounted on the base module 100. The drive module consists of a servo motor 200 and a ball screw 210. Through the screw and nut pair, it drives the metal part 400 to be processed (such as an aluminum strip) to be fed at a constant speed along the X-axis, realizing the continuous conveying of the metal part 400. The feed speed can be adjusted by the servo controller. The fixing module 300 is provided with a limit groove. Two or more sets of asynchronous motors (i.e., rotary motors 500) are arranged sequentially along the feed direction of the metal part 400. This can correspond to different processing areas of the metal part within the limit groove, realizing segmented and zoned striking operations. Different striking processes can be adopted for different positions of the metal part. The output shaft of each set of motors is connected to an eccentric turntable 510. The turntable circumferentially suspends 3-6 sets of metal chains 520 and solid iron ball assemblies. The length of the chain 520 is adjustable, and the mass of the iron ball is selected according to the depth of the hammer marks (50-300g).

[0028] The metal part 400 to be processed is horizontally fixed by a limiting groove. One end of the metal part 400 to be processed is connected to a lead screw nut. The position of the limiting groove can be finely adjusted along the Y-axis to adjust the striking area.

[0029] Specifically, the processing information of the metal part 400 placed inside the limiting groove is acquired in real time. The acquired processing information can characterize various processing attributes and process requirements of the metal part 400, including the material information, shape information, impact surface information, preset impact depth information, and preset hammer mark density information of the metal part itself. Among them, the material information reflects the material type, hardness, plasticity and other material mechanical properties of the metal part; the shape information reflects the contour structure, curved surface features, edge and corner positions and thickness distribution of the metal part; the impact surface information reflects the flatness, surface condition and surface defects of the surface to be processed of the metal part; the preset impact depth information is the standard depth of hammer mark forming indentation required by the process; and the preset hammer mark density information is the density of hammer mark distribution per unit area required by the process.

[0030] After collecting complete information on the parts to be processed, and combining the comprehensive characteristics of various information, each striking unit arranged along the limiting groove is independently matched and set with parameters to accurately set the striking force and frequency corresponding to each striking unit. After completing the parameter settings for the striking force and frequency of all striking units, the drive power of the drive module is uniformly matched and set based on the overall working parameters of all striking units. The equipment control system regulates the drive module to operate stably at the matched target drive power. The drive module drives the metal part 400 to be processed inside the limiting groove to move smoothly along the preset trajectory, allowing the metal part to pass through the working area of ​​each striking unit at a uniform speed. During the continuous feeding and movement of the metal part, each striking unit arranged along the limiting groove continuously performs regular striking operations on the corresponding area of ​​the metal part surface according to its pre-set striking force and frequency. Under the controllable impact force and striking frequency, the surface of the metal part uniformly forms a hammer texture that meets the preset depth and density standards, ultimately completing the overall hammer texture processing and obtaining a target hammer-textured metal part with uniform surface texture, high forming accuracy, and meeting process requirements.

[0031] In some optional embodiments, setting the striking force and striking frequency of each of the striking units according to the processing information includes: S210. Determine the material reference strength coefficient according to the material information and the first preset mapping table, wherein the first preset mapping table is used to indicate the mapping relationship between the material information and the material reference strength coefficient. S220. Determine the reference force based on the preset impact depth information, the material reference force coefficient, and the material information; S230. The impact force is obtained by correcting the reference force based on the impact surface information and the shape information; S240. Determine the material damping correction coefficient based on the material information and the second preset mapping table, wherein the second preset mapping table is used to indicate the mapping relationship between the material information and the material damping correction coefficient; S250. Determine the reference frequency based on the preset hammer pattern density information, the material damping correction coefficient and the preset feed speed. The preset feed speed represents the moving speed of the metal part 400 to be processed on the limiting groove. S260. The reference frequency is corrected according to the tapping surface information and shape information to obtain the tapping frequency.

[0032] Specifically, the first preset mapping table stores a one-to-one matching relationship between various material information and material reference force coefficients. The system uses the material information corresponding to the current metal part 400 to be processed as the query basis, and retrieves the material reference force coefficient suitable for the current workpiece material from the first preset mapping table. The reference force is obtained by comprehensively calculating the preset impact depth information, material reference force coefficient, and material information. The reference force is the standard impact force that is suitable for the material and the target indentation depth without considering the interference of workpiece shape structure and surface defects. The system reads the impact surface information and shape information corresponding to the metal part 400 to be processed. Based on the flatness of the workpiece surface, the state of surface oxidation or unevenness, and the different shape and structural features of the workpiece such as whether it is a planar area or a curved surface, thin-walled corners, or thickened ribs, the reference force is adjusted accordingly to eliminate the forming interference caused by the workpiece shape and surface state other than the material, and the impact force of the current impact unit corresponding to the processing area is obtained.

[0033] The system retrieves a built-in second preset mapping table, which records fixed mapping rules between material information and material damping correction coefficients. Using the material information of the metal part 400 to be processed, the system searches the second preset mapping table to obtain a material damping correction coefficient suitable for the metal's properties. The preset hammer pattern density information, material damping correction coefficient, and preset feed speed are combined to obtain a reference frequency, which is the basic striking frequency matching only the material, hammer pattern density requirements, and feed speed. The system reads the striking surface information and shape information of the metal part 400 to be processed. Based on the surface roughness defects, differences in smooth substrates, and different shape partitioning features such as planes, curved surfaces, and narrow corners, the reference frequency is corrected to offset the influence of the local structure and surface condition of the metal part 400 on the uniformity of the hammer pattern distribution. After correction, the striking frequency of the striking unit in the processing area is obtained. Following the above process, the force and frequency of each striking unit arranged along the limiting groove are independently calculated and corrected, thereby setting striking force and striking frequency parameters for all striking units to be adapted to the working conditions of the processing area.

[0034] In some optional embodiments, obtaining the striking force after correcting the reference force based on the striking surface information and the shape information includes: For each of the aforementioned striking units, the following is performed: S231. Determine the target striking area based on the shape information and the pose information between the striking unit and the metal part 400 to be processed. S232. Determine a first correction coefficient based on the surface type of the target striking area and a third preset mapping table, wherein the third preset mapping table is used to indicate the mapping relationship between the surface type and the first correction coefficient. S233. Determine a second correction coefficient based on the tapping surface information of the target tapping area and a fourth preset mapping table, wherein the fourth preset mapping table is used to indicate the mapping relationship between the tapping surface information and the second correction coefficient. S234. The striking force is obtained by correcting the reference force according to the first correction coefficient and the second correction coefficient.

[0035] Specifically, by combining the shape information of the metal part 400 to be processed, and simultaneously obtaining the relative pose information between the current striking unit and the metal part 400 to be processed within the limiting groove, the target striking area of ​​the workpiece corresponding to the current striking unit is delineated, and the specific position range of the striking unit responsible for striking is determined. The surface type corresponding to the target striking area is identified, and the third preset mapping table stored in the equipment is retrieved. The third preset mapping table records the corresponding matching relationship between different surface types and the first correction coefficient. Using the identified surface type as the search condition, the table is consulted to obtain the first correction coefficient that is suitable for the structure of the area. Then, the striking surface information corresponding to the target striking area is extracted. The fourth preset mapping table is retrieved. The fourth preset mapping table records the mapping association between various striking surface state information and the second correction coefficient. The table is consulted to match the corresponding second correction coefficient based on the actual surface information of the area. Finally, the first correction coefficient and the second correction coefficient obtained from the table are applied together to the reference force to complete the force compensation correction calculation and obtain the striking force of the current striking unit. In one embodiment, the first correction coefficient for the planar region is 1; the first correction coefficient for the curved / arc region is 1.2-1.4, increasing the frequency and replacing single-point strong impact with multi-point small-amplitude impacts to improve the uniformity of the texture; the first correction coefficient for the narrow corner region is 0.7-0.9, reducing the frequency to avoid overlapping and accumulation of hammer marks; the second correction coefficient for surface roughness and unevenness indicated by surface information is 1.1, which densifies the impact to compensate for surface errors; the second correction coefficient for smooth pre-treated surfaces indicated by surface information is 1; the first correction coefficient, the second correction coefficient, and the reference force are multiplied sequentially to obtain the corrected striking force.

[0036] In some optional embodiments, determining the reference frequency based on the preset hammerstone density information, the material damping correction coefficient, and the preset feed rate includes: For each of the aforementioned striking units, the following is performed: S251. Obtain the effective processing width of the striking unit along the width direction of the metal part to be processed (400). S252. Calculate the unit processing area based on the effective processing width and the preset feed speed; S253. Calculate the baseline number of taps per unit based on the preset hammer pattern density information and the unit processing area; S254. The reference frequency is obtained by correcting the reference unit number of taps according to the material damping correction coefficient.

[0037] Specifically, the effective processing width of the metal part 400 to be processed corresponding to a single striking unit is acquired in real time, which is the effective striking range of the striking unit in the transverse coverage direction of the workpiece. The unit processing area is calculated by combining the acquired effective processing width of the striking unit with the preset feed speed, where the preset feed speed is the uniform moving speed of the metal part 400 within the limiting groove. During continuous workpiece feeding, the area swept by the workpiece corresponding to the striking unit per unit time is calculated through the coupling relationship between the effective processing width and the feed speed; this is the unit processing area.

[0038] Based on the preset hammer mark density information set in the process and the calculated unit processing area, the baseline unit number of blows is obtained. The preset hammer mark density specifies the number of hammer marks required to be formed within a unit area of ​​the workpiece. By matching the hammer mark number requirement corresponding to the unit processing area, the basic number of blows required for the striking unit per unit time can be calculated. This basic number of blows is the standard number of blows without considering the influence of material properties such as material springback and plasticity differences. The matched material damping correction coefficient is retrieved to correct the baseline unit number of blows. This material damping correction coefficient is used to quantify the influence of the springback characteristics and plastic deformation capacity of different metal materials on the hammer mark forming effect. It can compensate for the forming deviation caused by the large springback of hard materials and the easy deformation of soft materials, and adaptively correct the baseline unit number of blows. After the correction is completed, the reference frequency corresponding to the current striking unit can be obtained.

[0039] In some optional embodiments, the step of correcting the reference frequency based on the tapping surface information and shape information to obtain the tapping frequency includes: For each of the aforementioned striking units, the following is performed: S261. Determine a third correction coefficient based on the surface type of the target striking area and a fifth preset mapping table, wherein the fifth preset mapping table is used to indicate the mapping relationship between the surface type and the third correction coefficient. S262. Determine a fourth correction coefficient based on the striking surface information of the target striking area and a sixth preset mapping table, wherein the sixth preset mapping table is used to indicate the mapping relationship between the striking surface information and the fourth correction coefficient; S263. The tapping frequency is obtained by correcting the reference frequency according to the third correction coefficient and the fourth correction coefficient.

[0040] Specifically, the system identifies the surface type of the target striking area corresponding to the current striking unit and retrieves the fifth preset mapping table built into the device. This fifth preset mapping table is pre-established and stores the mapping relationship between different workpiece surface types and the third correction coefficient for frequency. Based on the identified surface type of the target striking area, a lookup match is performed to determine the third correction coefficient that best suits the structural characteristics of the target striking area, reducing the impact of different workpiece contours such as planes, curved surfaces, edges, and irregular structures on the uniformity of the hammer marks.

[0041] The system extracts the impact surface information corresponding to the current target impact area and retrieves the sixth preset mapping table built into the device. The sixth preset mapping table is used to characterize the mapping relationship between the impact surface state information of various workpieces and the fourth correction coefficient of the frequency. The system combines the impact surface information such as the surface flatness, surface roughness, surface oxide layer state, and surface defect of the target impact area to look up the table and match the corresponding fourth correction coefficient, which is used to compensate for the hammer pattern forming deviation caused by the difference in the surface state of the workpiece.

[0042] The third and fourth correction coefficients obtained from the table are applied together to the calculated reference frequency. Through the dual-coefficient collaborative correction, the interference of workpiece structural surface differences and surface condition differences on the striking frequency is simultaneously offset. The reference frequency is adaptively adjusted upward or downward. After the correction is completed, the accurate striking frequency of the current striking unit is obtained, so that the striking frequency of each striking unit can be adapted to the workpiece structure and surface processing conditions of the corresponding area, ensuring that the hammer mark density of the overall workpiece surface is uniform and the texture meets the standards.

[0043] In some optional embodiments, after determining the tapping frequency and tapping force of each of the tapping units, the method further includes: S264. Obtain the difference in striking force between adjacent striking units; S265. If the striking force difference is not within the preset difference range, adjust the striking force between adjacent striking units so that the striking force difference is within the preset difference range. S266. Obtain the phase offset value between adjacent striking units, wherein the phase offset value represents the phase difference value of the striking frequency of adjacent striking units. S267. When the phase offset value is less than a preset offset threshold, adjust the tapping frequency between adjacent tapping units so that the phase offset value is greater than or equal to the preset offset threshold.

[0044] Specifically, after determining the striking frequency and striking force of each striking unit, it is necessary to perform coordinated balancing and resonance suppression processing between adjacent striking units. The specific operation steps are as follows: First, collect the striking force difference between each group of adjacent striking units and compare this difference with the system's preset allowable difference range. If the striking force difference between adjacent striking units exceeds the preset difference range, it indicates that the impact force difference between adjacent areas is too large. During metal part processing, defects such as uneven force distribution, surface wavy deformation, and varying depths of hammer marks are likely to occur. At this time, the system automatically adjusts the striking force of adjacent striking units to reduce the force difference by slightly increasing the lower striking force and slightly decreasing the higher striking force, until the striking force difference between adjacent striking units falls within the preset difference range, ensuring that the workpiece is subjected to stable and balanced lateral force.

[0045] Next, the phase offset value corresponding to two adjacent striking units is collected. This phase offset value is used to characterize the vibration phase difference between the two sets of adjacent striking units when they run at the striking frequency. The collected phase offset value is compared with the system's preset offset threshold. If the phase offset value is less than the preset offset threshold, it means that the impact action of the adjacent striking units is close to synchronous. Synchronous impact can easily cause resonance and vibration of the whole machine and metal parts, which will damage the hammer pattern forming effect and aggravate equipment wear. At this time, the system makes a slight differential adjustment to the striking frequency of the adjacent striking units, widening the vibration phase difference between the two, so that the adjusted phase offset value is greater than or equal to the preset offset threshold, thus staggering the impact time of the adjacent units and avoiding the processing defects and equipment vibration problems caused by synchronous resonance.

[0046] In some optional embodiments, the striking unit includes a rotary motor 500 and an eccentric turntable 510, the eccentric turntable 510 being connected to the rotary motor 500, and multiple sets of chains 520 being provided on the eccentric turntable 510, with metal balls 530 connected to the chains 520; after setting the striking force and striking frequency of each striking unit according to the processing information, the method further includes: For each of the tapping units, the following is performed: S270. Determine the rotation speed of the rotating motor 500 based on the tapping frequency and the number of chains 520. S280. Set the target length of each chain 520 and the target mass of each metal ball 530 according to the rotation speed, the striking force, the preset chain length range and the preset metal ball mass range.

[0047] Specifically, after setting the parameters of striking force and striking frequency for each striking unit based on the information to be processed, and completing the force balance and phase offset coordination correction of adjacent striking units, it is also necessary to perform configuration operations for motor speed, chain 520 length, and metal ball 530 for each striking unit individually. The striking unit consists of a rotating motor 500, an eccentric turntable 510, multiple chains 520, and metal balls 530. The eccentric turntable 510 is mounted on the output end of the rotating motor 500, and multiple chains 520 are installed on the surface of the eccentric turntable 510. Each chain 520 is equipped with a metal ball 530 at its end. The specific configuration process is as follows: For a single striking unit, based on the final determined striking frequency of the current striking unit and the total number of chains 520 mounted on the eccentric turntable 510, the target rotation speed required to match the rotating motor 500 is calculated. The motor rotation speed determines the overall rotation frequency of the eccentric turntable 510. Combined with the number of chains 520 on the turntable, the overall striking frequency required by the process is accurately matched, and the basic operating speed of the motor is determined.

[0048] Based on the calculated motor rotation speed, the target striking force corresponding to the striking unit, and the constraints of the adjustable range of chain 520 length and selectable range of metal ball 530 mass specified by the equipment hardware, the target length corresponding to each chain 520 and the target mass corresponding to each metal ball 530 are calculated comprehensively. The striking force is determined by the coupling of motor speed, chain 520 swing length, and metal ball 530 self-weight. Under the premise that the motor speed is fixed, a suitable chain 520 length is matched within the preset chain length range first. If adjusting the chain 520 length alone cannot achieve the target striking force, then a metal ball 530 with a suitable weight is replaced within the preset metal ball mass range. Through the combination of chain 520 length and metal ball 530 mass, the striking unit outputs a striking force consistent with the process requirements at a given motor speed.

[0049] In some optional embodiments, setting the drive power of the drive module according to the striking force and the striking frequency includes: S310. The total impact energy is calculated based on the striking force and striking frequency of each striking unit. S320. Determine the impact load on the metal part 400 to be processed based on the total impact energy; S330. Determine the resistance force based on the impact load, the weight of the metal part 400 to be processed, and the friction coefficient of the limiting groove. S340. The basic power is calculated based on the feed rate and the weight of the metal part 400 to be processed; S350, Obtain the fixed mechanical transmission power loss during the processing; S360. The driving power is calculated based on the base power, the mechanical transmission power loss, and the resistance force.

[0050] Specifically, the striking force and frequency of all striking units in operation are obtained. The impact work generated by each striking unit per unit time is accumulated and calculated to obtain the total impact work under the combined action of all striking units. Based on this total impact work, the overall impact load continuously borne by the metal part 400 during processing is calculated. This impact load represents the reverse resistance effect on the workpiece when all striking units strike the workpiece simultaneously. Combining the impact load, the weight of the metal part 400 itself, and the preset friction coefficient between the inner wall of the limiting groove and the workpiece, the comprehensive resistance force experienced by the workpiece during feeding is calculated. The resistance force includes the reverse impact resistance from the striking and the sliding friction force generated by the relative sliding between the workpiece and the limiting groove. Based on the preset workpiece feed speed and the weight of the metal part 400 itself, the basic power required to overcome the weight of the workpiece and maintain the basic uniform speed movement is calculated. At the same time, the mechanical transmission power loss that is fixed in the transmission structure of the equipment is read. This loss is a fixed energy loss continuously generated during the operation of the motor, lead screw, and sliding support structure inside the drive module, and is not affected by changes in the workpiece and striking conditions. The basic power, fixed mechanical transmission power loss, and additional work power corresponding to the resistance force are integrated and calculated in a unified manner. The driving power that is suitable for all current striking conditions is obtained by comprehensively solving the three types of power values, and this is used as the target output power for the operation of the driving module.

[0051] In some embodiments, during continuous feeding of the metal part 400, the displacement and pressure sensors built into the limiting groove collect real-time data on the feed speed fluctuations and resistance changes of the metal part 400. Simultaneously, each striking unit continuously transmits real-time data on the actual striking force and frequency. The system continuously compares the real-time total impact load with the initial calculated reference load. When the striking force and frequency of a local striking unit increase, causing a sudden rise in the total impact load and resulting in a slower workpiece feed, the system automatically slightly increases the output power of the drive module to counteract the impact resistance. When the workpiece reaches corners or thin-walled areas, the corresponding striking unit automatically reduces its striking force and frequency. As the total impact load decreases, the drive power is simultaneously reduced to prevent excessively fast feed speeds that could lead to sparse hammer marks. If multiple striking units simultaneously switch force and frequency parameters, the system synchronously performs smooth and gradual adjustment of the drive power to prevent sudden power changes that could cause workpiece vibration and uneven hammer mark depth. Throughout the process, the system dynamically corrects the drive power in real-time based on the striking force and frequency of each striking unit, ensuring a uniform and stable workpiece feed and good hammer mark processing results.

[0052] Implementing the embodiments of the present invention has the following beneficial effects: acquiring the processing information of the metal part 400 to be processed on the limiting groove, wherein the processing information characterizes the material information, shape information, striking surface information, preset striking depth information, and preset hammer pattern density information of the metal part 400 to be processed; setting the striking force and striking frequency of each striking unit according to the processing information; setting the driving power of the driving module according to the striking force and the striking frequency; controlling the driving module to drive the metal part 400 to be processed to move in the limiting groove with the driving power, so that each striking unit strikes the metal part 400 to be processed with the striking force and the striking frequency to obtain the target hammer pattern metal part. In the technical solution of this embodiment, the processing information is automatically acquired, and the striking force and striking frequency of each striking unit are set according to the processing information. The metal part 400 to be processed is driven by the driving module, so that the striking points form randomly distributed overlapping trajectories on the striking surface, generating natural, irregular continuous hammer texture. The hammer texture style is varied, the hammer texture decoration effect is good, the whole hammer texture processing process is automated, and the hammer texture processing efficiency is high.

[0053] In addition, one embodiment of the present invention provides a hammering machine for metal parts, the machine comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor.

[0054] The processor and memory can be connected via a bus or other means.

[0055] It should be noted that the computer in this embodiment may correspond to, for example, including, Figure 1 The memory and processor in the illustrated embodiment can constitute Figure 1 The system architecture platform shown in the embodiment belongs to the same inventive concept, and therefore has the same implementation principle and beneficial effects, which will not be described in detail here.

[0056] The non-transient software program and instructions required to implement the methods of the above embodiments are stored in memory. When executed by a processor, the hammering method for metal parts described in the above embodiments is executed, for example, the method described above is executed. Figure 2 Method steps S100 to S400.

[0057] Furthermore, one embodiment of the present invention provides a computer-readable storage medium storing computer-executable instructions. When these computer-executable instructions are used to execute the hammering process of the metal part using the aforementioned hammering equipment, for example, to execute the process described above... Figure 2 Method steps S100 to S400.

[0058] It will be understood by those skilled in the art that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components can be implemented as processors, such as central processing units, digital signal processors, or microprocessors executing software, or as hardware, or as integrated circuits, such as application-specific integrated circuits. Such software can be distributed on a computer-readable medium, which can include computer storage media (or non-transitory media) and communication media (or transient media). As is known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible to a computer. Furthermore, as is known to those skilled in the art, communication media typically include computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

[0059] The above provides a detailed description of the preferred embodiments of the present invention. However, the present invention is not limited to the above embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of the present invention.

Claims

1. A method for hammering texture on metal parts, characterized in that, An application is made in a hammer-texturing machine, which includes a drive module, a fixing module, and a striking module. The fixing module has a limit groove, and the striking module includes multiple striking units arranged along the limit groove. The hammer-texturing method for metal parts includes: Obtain the processing information of the metal part to be processed on the limiting groove. The processing information represents the material information, shape information, impact surface information, preset impact depth information and preset hammer mark density information of the metal part to be processed. The method for setting the striking force and striking frequency of each striking unit according to the processing information includes: determining a material reference force coefficient based on the material information and a first preset mapping table, wherein the first preset mapping table indicates the mapping relationship between the material information and the material reference force coefficient; determining a reference force based on the preset striking depth information, the material reference force coefficient, and the material information; obtaining the striking force by correcting the reference force based on the striking surface information and the shape information; determining a material damping correction coefficient based on the material information and a second preset mapping table, wherein the second preset mapping table indicates the mapping relationship between the material information and the material damping correction coefficient; determining a reference frequency based on the preset hammer pattern density information, the material damping correction coefficient, and a preset feed speed, wherein the preset feed speed characterizes the moving speed of the metal part to be processed on the limiting groove; and obtaining the striking frequency by correcting the reference frequency based on the striking surface information and the shape information. The driving power of the driving module is set according to the striking force and the striking frequency; The drive module is controlled to drive the metal part to be processed to move within the limiting groove with the drive power, so that each of the striking units strikes the metal part to be processed with the striking force and the striking frequency to obtain the target hammered metal part.

2. The hammering method for metal parts according to claim 1, characterized in that, The step of obtaining the striking force after correcting the reference force based on the striking surface information and the shape information includes: For each of the aforementioned striking units, the following is performed: The target striking area is determined based on the shape information and the pose information between the striking unit and the metal part to be processed. A first correction coefficient is determined based on the surface type of the target striking area and a third preset mapping table, wherein the third preset mapping table is used to indicate the mapping relationship between the surface type and the first correction coefficient. A second correction coefficient is determined based on the impact surface information of the target impact area and a fourth preset mapping table, wherein the fourth preset mapping table is used to indicate the mapping relationship between the impact surface information and the second correction coefficient. The striking force is obtained by correcting the reference force according to the first correction factor and the second correction factor.

3. The hammering method for metal parts according to claim 1, characterized in that, The step of determining the reference frequency based on the preset hammerstone density information, the material damping correction coefficient, and the preset feed rate includes: For each of the aforementioned striking units, the following is performed: Obtain the effective processing width of the striking unit along the width direction of the metal part to be processed; The unit processing area is calculated based on the effective processing width and the preset feed speed; The baseline number of taps per unit is calculated based on the preset hammer pattern density information and the unit processing area. The reference frequency is obtained by correcting the reference unit number of taps according to the material damping correction coefficient.

4. The hammering method for metal parts according to claim 2, characterized in that, The step of correcting the reference frequency based on the tapping surface information and shape information to obtain the tapping frequency includes: For each of the aforementioned striking units, the following is performed: A third correction coefficient is determined based on the surface type of the target striking area and a fifth preset mapping table, wherein the fifth preset mapping table is used to indicate the mapping relationship between the surface type and the third correction coefficient. A fourth correction coefficient is determined based on the impact surface information of the target impact area and a sixth preset mapping table, wherein the sixth preset mapping table is used to indicate the mapping relationship between the impact surface information and the fourth correction coefficient; The tapping frequency is obtained by correcting the reference frequency according to the third correction factor and the fourth correction factor.

5. The hammering method for metal parts according to claim 4, characterized in that, After determining the striking frequency and striking force of each of the striking units, the method further includes: Obtain the difference in striking force between adjacent striking units; If the difference in striking force is not within the preset difference range, adjust the striking force between adjacent striking units so that the difference in striking force is within the preset difference range; The phase offset value between adjacent striking units is obtained, and the phase offset value represents the phase difference value of the striking frequency of the adjacent striking units. If the phase offset value is less than a preset offset threshold, the tapping frequency between adjacent tapping units is adjusted so that the phase offset value is greater than or equal to the preset offset threshold.

6. The hammering method for metal parts according to claim 1, characterized in that, The striking unit includes a rotating motor and an eccentric turntable, the eccentric turntable being connected to the rotating motor, and multiple chains arranged on the eccentric turntable, each chain having a metal ball connected to it; after setting the striking force and striking frequency of each striking unit according to the processing information, the method further includes: For each of the tapping units, the following is performed: The rotation speed of the rotating motor is determined based on the tapping frequency and the number of chains. The target length of each chain and the target mass of each metal ball are set according to the rotation speed, the striking force, the preset chain length range, and the preset metal ball mass range.

7. The hammering method for metal parts according to claim 1, characterized in that, Setting the drive power of the drive module according to the striking force and the striking frequency includes: The total impact energy is calculated based on the striking force and striking frequency of each striking unit; The impact load on the metal part to be processed is determined based on the total impact energy. The resistance force is determined based on the impact load, the weight of the metal part to be processed, and the friction coefficient of the limiting groove. The base power is calculated based on the preset feed rate and the weight of the metal part to be processed; Obtain the fixed mechanical transmission power loss during the processing; The driving power is calculated based on the base power, the mechanical transmission power loss, and the resistance force.

8. A hammer-marking machine for metal parts, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the computer program, implements the hammering method for metal parts according to any one of claims 1-7.

9. A computer storage medium, characterized in that, The computer storage medium stores computer-executable instructions for executing the hammering method for metal parts according to any one of claims 1-7.

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