Automatic ultrasonic wave shape righting equipment and shape righting method thereof

Abstract

The invention discloses automatic ultrasonic wave shape righting equipment, and relates to the technical field of product shape righting, the automatic ultrasonic wave shape righting equipment comprises an impact surface formed by the end parts of a plurality of array-state impact needles on an ultrasonic shot peening gun, the plurality of array-state impact needles are lack of a plurality of impact needles, so that the area lacking the plurality of impact needles forms an avoiding area for avoiding a burr part; the avoiding area is arranged on the impact face in a penetrating mode, so that when the impact face moves in the length direction of the welding seam, the avoiding area can walk on the burr part along with the impact face. By arranging the avoiding area formed by the multiple array-state impact needles and the missing impact needles, a burr part can be effectively avoided, so that the adaptability and shape correction precision of equipment on a complex plate are improved, and it is ensured that shape correction near a welding seam is not affected by burrs.

Description

Technical Field

[0001] The invention relates to the technical field of product orthopedics, and in particular to automatic ultrasonic orthopedic equipment and a orthopedic method thereof. Background Art

[0002] The needle-type ultrasonic shot peening surface strengthening treatment technology is also called ultrasonic shot peening technology, which can be used for the correction of products after welding. Its main working principle is: the transducer in the ultrasonic shot peening gun converts electrical energy into mechanical energy, drives the array impact needle to vibrate, impacts the surface of the component, and introduces residual compressive stress on the surface of the component. Ultrasonic shot peening is mainly suitable for the forming, correction, enhancement and life extension of thin plates of different sizes.

[0003] At present, a three-axis (XYZ axis) robot is generally used to perform three-dimensional movement of the ultrasonic shot peening gun to achieve its corrective treatment of the product. For example, a patent document with application publication number CN112662854A discloses an automatic ultrasonic shot peening device for processing metal sheets, the ultrasonic shot peening device comprising: an ultrasonic shot peening gun, a shot peening gun fixing mechanism, a moving mechanism, a frame stabilizing mechanism and a metal sheet fixing mechanism, the ultrasonic shot peening gun being used to perform shot peening on the metal sheet to be processed; the shot peening gun fixing mechanism being used to fix the ultrasonic shot peening gun; the moving mechanism being configured to be able to move along the X-axis, Y-axis or Z-axis direction; the shot peening gun fixing mechanism being arranged on the moving mechanism; the moving mechanism being used to enable the shot peening gun fixing mechanism to move along the X-axis, Y-axis or Z-axis direction, thereby enabling the ultrasonic shot peening gun to move along the X-axis, Y-axis or Z-axis direction; the frame stabilizing mechanism being arranged below the moving mechanism for supporting the moving mechanism; the metal sheet fixing mechanism being arranged on the frame stabilizing mechanism and located below the ultrasonic shot peening gun, the metal sheet fixing mechanism being used to fix the metal sheet to be processed.

[0004] The ultrasonic shot peening device realizes the automatic ultrasonic shot peening operation on the metal sheet by accurately setting the ultrasonic shot peening gun to move in three dimensions, thereby improving the shot peening efficiency. However, when the ultrasonic shot peening device is used on a metal sheet with uniform texture, if the object is a sheet with a concave weld (the position of the weld will deform during welding, so the weld area of ​​the sheet needs to be corrected), since the concave weld is composed of a weld bead and burr parts on both sides of the weld bead, its structural diagram can be shown as follows: Figure 1 and Figure 2In the figure, 101 represents a plate, 102 represents a weld, 1021 represents a weld bead, and 1022 represents a burr portion. Furthermore, in the process of shot peening the weld with an ultrasonic shot peening gun, the impact surface formed by the gun head of the ultrasonic shot peening gun will act on the weld in surface contact, that is, it will impact the weld bead and the burr portions on both sides at the same time (in the process of plate production, generally, the plate is corrected first, and then deburring and other processing are performed, so the burrs cannot be removed before the corrective treatment). After the impact surface performs impact treatment on the burr portion, the burr portion will be embedded in the plate. This situation will not only affect the quality of the plate, but also make the subsequent cleaning operation of the burr portion extremely complicated, or even impossible to clean.

[0005] Furthermore, if Figure 1 As shown, the weld on the plate is composed of several straight parts and several curved parts. Based on the existence of the curved parts, the burrs in the curved parts will also be arranged in a curve. After the weld is impact-treated with an impact surface, the burrs in the straight parts and the curved parts of the weld will be impact-treated. When the burrs need to be cleaned after the impact treatment is completed, the burrs in the curved parts that are impact-treated are at the corners, making them the most difficult to remove and clean, causing great production inconvenience.

[0006] Based on this, we propose an automatic ultrasonic correction device to solve the above problems. Summary of the invention

[0007] The purpose of the present invention is to solve the problems in the prior art and to propose an automatic ultrasonic correction device. The correction device improves the impact surface, and has an avoidance area on the impact surface for avoiding burrs, thereby achieving accurate avoidance of burrs on the weld and ensuring effective movement of the impact surface in the length direction of the weld, thereby improving the correction accuracy and working efficiency.

[0008] To solve the above problems, the present invention provides the following technical solutions:

[0009] An automatic ultrasonic correction device includes an impact surface formed by the ends of multiple array-like impact needles on an ultrasonic shot peening gun, wherein a number of impact needles are missing from the multiple array-like impact needles, so that the area where the number of impact needles are missing constitutes a avoidance zone for avoiding burrs, and the avoidance zone is arranged in a penetrating state on the impact surface, so that when the impact surface moves along the length direction of the weld, the avoidance zone can move on the burr with the impact surface.

[0010] As a further solution of the present invention: the width of the avoidance zone is set to be greater than the boundary line distance of the burr portion, so that the avoidance zone can pass through the burr portion with a curved structure portion.

[0011] As a further solution of the present invention: the orthopedic device also includes a driving source for driving the ultrasonic shot peening gun to perform a rotational motion so that the avoidance zone can pass through the curved structural portion on the burr portion.

[0012] As a further solution of the present invention: the avoidance zones are arranged in a straight line, and the avoidance zones are set into two groups and arranged in parallel.

[0013] As a further solution of the present invention: the orthopedic device also includes a cleaning component, which includes a sheet metal box arranged on the ultrasonic shot peening gun, and the bottom of the sheet metal box is arrayed with bristles for surrounding the impact surface; the cleaning component also includes a negative pressure pipe arranged on the top of the sheet metal box, and one end of the negative pressure pipe extends into the bristles arranged in an array.

[0014] As a further solution of the present invention: the orthopedic equipment also includes a machine tool, on which a three-dimensional motion mechanism for installing the ultrasonic shot peening gun is provided, and on which a shock absorbing member for shock absorbing the ultrasonic shot peening gun is provided.

[0015] As a further solution of the present invention: the machine tool is provided with a fixture for clamping a limiting plate, the fixture includes a base plate arranged on the top of the machine tool, a plurality of coarse guide blocks are evenly distributed on the base plate, a support block located in an enclosure formed by the plurality of coarse guide blocks is fixedly provided on the base plate, and the support blocks are provided in plurality and evenly distributed in the enclosure, a positioning pin is provided on the base plate at a side position of the coarse guide block, a clamp is provided on the base plate, and the execution end of the clamp can move toward or away from a support surface formed by the top ends of the plurality of support blocks.

[0016] As a further solution of the present invention: a distance measuring sensor is arranged on each support block, and the distance measuring sensor is located below the support surface formed by the top ends of the plurality of support blocks.

[0017] The present invention also provides a correction method of an automatic ultrasonic correction device, comprising the following steps:

[0018] Step 1: Loading: The plate to be corrected is clamped and fixed by a fixture. At this time, the plate is located above multiple distance measuring sensors. The plate is divided into multiple correction areas according to the layout of the weld on the plate. Each distance measuring sensor corresponds to one correction area.

[0019] Step 2: Preparation: The deformation variable signal of the corresponding orthopedic area in the initial state is obtained through each ranging sensor, and the deformation variable signal is transmitted to the controller. The controller processes the deformation variable signal and acts on the three-dimensional motion mechanism, and obtains the working power of the ultrasonic shot peening gun, and the walking speed of the ultrasonic shot peening gun along the XY direction and the working height in the Z direction driven by the three-dimensional motion mechanism on the corresponding orthopedic area;

[0020] Step 3: Start: Start the ultrasonic shot peening gun and the negative pressure pipe. The three-dimensional motion mechanism drives the ultrasonic shot peening gun to move along the length direction of the weld. During this process, the burr part in the weld will be contained in the avoidance area on the impact surface. The impact surface of the ultrasonic shot peening gun only acts on the non-burr part of the weld to achieve the correction treatment of the weld area. At the same time, the bristles on the ultrasonic shot peening gun will clean the waste chips on the burr part, and the negative pressure pipe will generate negative pressure inside the bristles to suck away the waste chips.

[0021] Step 4: Determination: After the first correction is completed, multiple distance measuring sensors are used again to measure the deformation signals of each correction area of ​​the plate after the first correction, and the deformation signals are transmitted to the controller to obtain the values ​​of each deformation variable. The controller uses the minimum deformation value as a reference, and calculates the difference between other deformation variable signal values ​​and the minimum deformation variable value to obtain the difference. If the difference exceeds the preset threshold, it means that the correction of the area corresponding to the deformation variable signal value is unqualified and needs to be corrected again. Otherwise, the correction is qualified.

[0022] Step 5: Repeat: Perform correction again on the area that failed the correction for the first time. The distance sensor will transmit the deformation signal corresponding to the corresponding correction area to the controller. The controller will process the deformation signal and act on the three-dimensional motion mechanism, and obtain the working power of the ultrasonic shot peening gun, as well as the walking speed of the ultrasonic shot peening gun along the XY direction and the working height in the Z direction driven by the three-dimensional motion mechanism on the corresponding correction area. Then, the ultrasonic shot peening gun and the negative pressure pipeline will perform correction work until the correction work is completed. This step is the same as step 2 and step 3;

[0023] Step 6: Review: After the second correction is completed, the correction area is still judged in the same way as in step 4. If all the correction areas are qualified, the correction work is completed; if there are still some areas that are not qualified, continue to repeat steps 2 to 4 until all areas of the plate are qualified.

[0024] As a further solution of the present invention: the working power of the ultrasonic shot peening gun in the above step 2 is p:

[0025]

[0026] Where: p represents the working power of the ultrasonic shot peening gun, p 1 Indicates the minimum working power set for the ultrasonic shot peening gun, p 额 Expressed as the rated power of the ultrasonic shot peening gun, a X It represents the deformation value corresponding to any orthopedic area, X=1, 2, 3... represents the number of each orthopedic area, a min Represented as a 1 , a 2 , a 3The minimum value among ...

[0027] As a further solution of the present invention: the walking speed V of the ultrasonic shot peening gun in the above step 2 along the XY direction on the corresponding correction area is:

[0028]

[0029] Where: v represents the speed of the ultrasonic shot peening gun along the XY direction, v 1 It is the maximum travel speed set by the ultrasonic shot peening gun, k is the orthopedic constant, a X It represents the deformation value corresponding to any orthopedic area, X=1, 2, 3... represents the number of each orthopedic area, a min Represented as a 1 , a 2 , a 3 The minimum value among ...

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. The automatic ultrasonic correction equipment can effectively avoid burrs by setting up a plurality of array-state impact needles and an avoidance zone composed of missing impact needles, thereby improving the adaptability and correction accuracy of the equipment on complex plates and ensuring that the correction near the weld is not affected by burrs;

[0032] 2. The width of the avoidance zone is greater than the boundary line distance of the burr part, so that the equipment can flexibly pass through the burr part with a curved structure, which enhances the flexibility and operating range of the equipment, is suitable for more plates with complex weld shapes, and improves the versatility of processing;

[0033] 3. The driving source equipped in this equipment enables the ultrasonic shot peening gun to perform a rotary motion, further improving the adaptability of the avoidance zone to the burr part of the curved structure, enhancing the precision and efficiency of the processing, and ensuring the effective avoidance of burrs of different shapes;

[0034] 4. The linear arrangement of the avoidance zone and the two sets of parallel arrangement design provide good stability and uniformity, adapt to the two burr parts in the weld, ensure that the burrs can be avoided stably during the processing, reduce the error in the processing, and improve the overall processing quality;

[0035] 5. The design of the cleaning component enables the equipment to automatically clean the impact surface during the processing, avoiding the influence of waste chips and other residues on the processing effect, improving the self-maintenance ability of the equipment, and ensuring the continuity and efficiency of the processing;

[0036] 6. The machine tool is equipped with a three-dimensional motion mechanism and shock-absorbing parts, which can effectively support the drive source and reduce vibration and noise during operation, thereby improving processing stability and accuracy while ensuring the safety of operation;

[0037] 7. The design of the fixture provides good fixing ability and positioning accuracy through the cooperation of multiple coarse guide blocks and support blocks, so that the limited plate can remain stable during the processing, improving the consistency and safety of the processing;

[0038] 8. The distance measuring sensor installed on each support block can monitor the deformation of each area of ​​the plate in real time, which enhances the processing accuracy and automation level, and also knows the condition of the plate after each correction processing;

[0039] 9. Each distance measuring sensor can make the impact surface perform corresponding working power and walking speed according to the deformation of each area of ​​the plate, so as to realize precise orthopedic processing in each area with high orthopedic accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The present invention will be further described below in conjunction with the accompanying drawings.

[0041] Figure 1 It is a schematic diagram of the planar structure in the prior art;

[0042] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0043] Figure 3 It is a three-dimensional structural schematic diagram of the present invention;

[0044] Figure 4 yes Figure 3 A schematic diagram of the enlarged structure at B in the middle;

[0045] Figure 5 It is a schematic diagram of the three-dimensional structure of the ultrasonic shot blasting gun and the cleaning component in the present invention;

[0046] Figure 6 It is a schematic diagram of the front view structure of the ultrasonic shot blasting gun and the cleaning component in the present invention;

[0047] Figure 7 yes Figure 6 Schematic diagram of the upward structure of the impact surface of the ultrasonic shot peening gun in the state;

[0048] Figure 8 It is a schematic diagram of the three-dimensional structure of the clamp in the present invention;

[0049] Fig. 9 yes Figure 7 Schematic diagram of the impact surface of the ultrasonic shot peening gun acting on the weld in the state Figure 1 ;

[0050] Fig.10 yes Figure 7 Schematic diagram of the impact surface of the ultrasonic shot peening gun acting on the weld in the state Figure 2 In the figure: 101, plate; 102, weld; 1021, weld portion; 1022, burr portion;

[0051] 1. Ultrasonic shot peening gun; 2. Impact needle; 3. Impact surface; 301. Avoidance area; 4. Driving source; 5. Sheet metal box; 6. Brush; 7. Negative pressure pipeline; 8. Machine tool; 9. Three-dimensional motion mechanism; 10. Bottom plate; 11. Coarse guide block; 12. Support block; 13. Positioning pin; 14. Clamping piece; 15. Distance sensor; 16. Shock absorber; 17. Fixture. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] Embodiment 1:

[0054] like Figure 3-Figure 10 As shown, an automatic ultrasonic correction device includes a machine tool 8, a fixture 17 and a three-dimensional motion mechanism 9 are arranged on the top of the machine tool 8, the fixture 17 is used to clamp and fix the plate 101 to be corrected, an ultrasonic shot peening gun 1 is installed on the three-dimensional motion mechanism 9, the ultrasonic shot peening gun 1 can be driven to move along the XYZ direction, the ends of multiple impact needles 2 arranged in an array on the ultrasonic shot peening gun 1 constitute an impact surface 3, the ultrasonic shot peening gun 1 is generally arranged in the vertical direction, so that the impact surface 3 is arranged in the horizontal direction, and the impact surface 3 is used to perform impact treatment on the surface of the plate 101.

[0055] The shape of the impact surface 3 is selected according to the type of ultrasonic shot peening gun 1, such as Figure 7 As shown, this article takes the circular impact surface 3 as an example for explanation. Specifically, under the design of the circular impact surface 3, the present application will partially remove the multiple impact needles 2 arranged in a circular array, so that the area where the impact needles 2 are missing constitutes an avoidance zone 301. Preferably, the avoidance zones 301 in the present application are arranged in a straight line, and the avoidance zones 301 are set in two groups and arranged in parallel, so as to adapt to avoid the two burr parts 1022 of the weld 102. During operation, the three-dimensional motion mechanism 9 drives the ultrasonic shot peening gun 1 downward until the impact surface 3 at the bottom of the ultrasonic shot peening gun 1 contacts the weld 102 on the plate 101, and the two burr parts 1022 on the weld 102 are respectively accommodated in the two avoidance zones 301. This state can be controlled by the three-dimensional motion mechanism 9. Fig. 9 To illustrate, the ultrasonic shot peening gun 1 can then be driven to move along the length direction of the weld 102. At this time, the impact surface 3 will continue to perform impact correction treatment on the corresponding area of ​​the plate 101. During this movement, the two avoidance areas 301 will always play an avoidance role for the two burr parts 1022. The two burr parts 1022 will not be impacted by the impact surface 3. The burr parts 1022 are in a free state and are not subjected to any force, which is convenient for the subsequent rapid and effective cleaning of the burr parts 1022.

[0056] Since different types of welds 102 correspond to different degrees of bending, the present application sets corresponding structures according to the types of welds 102 for better adaptation and use, as follows:

[0057] (1) When the overall shape of the weld 102 is a sine wave or a structure similar to a sine wave, the peak-to-valley distance is the boundary line distance of the burr portion 1022, and the width of the avoidance zone 301 is set to be greater than the boundary line distance of the burr portion 1022, so that the avoidance zone 301 can pass through the burr portion 1022 with a curved structure.

[0058] (2) When the impact surface 3 is smaller than the overall volume of the weld 102, that is, the impact surface 3 can move on the weld 102 as a particle, a driving source 4 (which can be a servo motor, etc.) can be set on the three-dimensional motion mechanism 9, and the execution end of the driving source 4 is fixedly connected to the ultrasonic shot peening gun 1 to drive the ultrasonic shot peening gun 1 to rotate; when the impact surface 3 moves on the weld 102, if it encounters a curved structure of the weld 102, the driving source 4 can be used to drive the ultrasonic shot peening gun 1 to rotate at a certain angle, so as to adjust the angle of the impact surface 3 and the avoidance zone 301, so that the avoidance zone 301 can smoothly pass through the curved structure on the burr portion 1022. This process can be performed by Figure 9 to Figure 10 To represent. It should be noted that the connection between the driving source 4 and the ultrasonic shot peening gun 1 can be either a coaxial connection or an eccentric connection, and the present application is not limited to this setting, as long as it can drive the ultrasonic shot peening gun 1 to rotate at a corresponding angle. At the same time, in order to prevent the impact surface 3 from causing impact damage to the plate 101, the present application also sets a shock absorber 16 (which can be a shock absorbing spring, etc.) on the three-dimensional motion mechanism 9. The shock absorber 16 can reduce the force applied by the impact surface 3 to the plate 101 instantly.

[0059] like Figure 4-Figure 6As shown, since a certain amount of waste will be generated during the process of using the impact surface 3 to impact and correct the plate 101, the present application also includes a cleaning component, which includes a sheet metal box 5 arranged on the ultrasonic shot peening gun 1 and a negative pressure pipe 7 arranged on the top of the sheet metal box 5. The bottom array of the sheet metal box 5 is provided with bristles 6 for surrounding the impact surface 3, and one end of the negative pressure pipe 7 extends to the bristles 6 arranged in an array. Since the sheet metal box 5 is arranged on the outer shell of the ultrasonic shot peening gun 1, the movement of the impact needle 2 will not cause movement interference to the sheet metal box 5. During the process of the impact surface 3 impacting and correcting the plate 101, the bristles 6 will clean the waste in the weld 102, and at the same time, the negative pressure pipe 7 generates a negative pressure effect to absorb and collect the waste in the bristles 6.

[0060] like Figure 8 As shown, the present application makes the following arrangement for the fixture 17: the fixture 17 includes a base plate 10 arranged on the top of the machine tool 8, and a plurality of coarse guide blocks 11 are evenly distributed on the base plate 10, and an enclosure area is formed between the plurality of coarse guide blocks 11, and a support block 12 located in the enclosure area is also fixedly arranged on the base plate 10, and the support blocks 12 are arranged in plurality and evenly distributed in the enclosure area, and the tops of the plurality of support blocks 12 constitute a support surface for placing the plate 101; further, a positioning pin 13 is arranged on the base plate 10 at a side position of the coarse guide block 11, and a clamping member 14 (which can be a clamping cylinder, etc.) is arranged on the base plate 10, and the execution end of the clamping member 14 can move toward or away from the support surface formed by the top ends of the plurality of support blocks 12. In the process of placing the plate 101 on the support surface, the plate 101 will be placed in the enclosed area under the guidance of multiple coarse guide blocks 11, and then the positioning pins 13 can be adapted and positioned with the assembly holes on the plate 101, and finally the plate 101 is pressed and limited on the support surface by the clamping member 14.

[0061] In order to accurately perform orthopedic treatment on the plate 101, the present application divides the plate 101 into a plurality of orthopedic areas according to the layout of the weld 102 on the plate 101, for example Fig. 9 The weld 102 shown is arranged in straight lines and curves on the plate 101, and then the plate 101 is set to two correction areas according to the straight part and the curve part, and the two correction areas are acted on in sequence according to the length direction of the weld 102. The number of support blocks 12 provided is adapted to the number of correction areas divided, and multiple support blocks 12 correspond to one correction area respectively. At the same time, a distance sensor 15 is provided at the same position on each support block 12, and the distance sensor 15 is located below the support surface formed by the top of multiple support blocks 12. Multiple distance sensors 15 are in the same horizontal plane. When the various areas of the plate 101 located on the support surface have different deformation amounts, the distances between the multiple distance sensors 15 and the correction areas of the plate 101 will be different. By evaluating each distance value, the deformation amount of each area can be known.

[0062] Embodiment 2:

[0063] Based on the above division of the correction area and the setting of the distance sensor 15, the present application proposes a correction method of an automatic ultrasonic correction device, comprising the following steps:

[0064] Step 1: Loading: The plate 101 to be corrected is clamped and fixed by the clamp 17. At this time, the plate 101 is located above the multiple distance sensors 15. The plate 101 is divided into multiple correction areas according to the layout of the weld 102 on the plate 101. Each distance sensor 15 corresponds to one correction area.

[0065] Step 2: Preparation: The deformation variable signal of the corresponding orthopedic area in the initial state is obtained through each distance measuring sensor 15, and the deformation variable signal is transmitted to the controller. The controller processes the deformation variable signal and acts on the three-dimensional motion mechanism 9, and obtains the working power of the ultrasonic shot peening gun 1, and the walking speed of the ultrasonic shot peening gun 1 along the XY direction and the working height in the Z direction driven by the three-dimensional motion mechanism 9 on the corresponding orthopedic area;

[0066] Step 3: Start: Start the ultrasonic shot peening gun 1 and the negative pressure pipe 7. The three-dimensional motion mechanism 9 drives the ultrasonic shot peening gun 1 to move along the length direction of the weld 102. During this process, the burr portion 1022 in the weld 102 will be accommodated in the avoidance area 301 in the impact surface 3. The impact surface 3 of the ultrasonic shot peening gun 1 only acts on the non-burr portion 1022 of the weld 102 to achieve orthopedic treatment of the weld 102. At the same time, the bristles 6 on the ultrasonic shot peening gun 1 will clean the waste, and the negative pressure pipe 7 will generate negative pressure inside the bristles 6 to suck away the waste;

[0067] Step 4: Determination: After the first correction is completed, the deformation signals of each correction area of ​​the plate 101 after the first correction are measured again by using multiple distance measuring sensors 15, and the deformation signals are transmitted to the controller to obtain the values ​​of each deformation. The controller uses the minimum deformation value as a reference, and calculates the difference between other deformation signal values ​​and the minimum deformation value and obtains the difference. If the difference exceeds the preset threshold, it means that the correction of the area corresponding to the deformation signal value is unqualified and needs to be corrected again. Otherwise, the correction is qualified.

[0068] Step 5: Repeat: Perform correction again on the area that failed the correction for the first time. The distance sensor 15 transmits the deformation signal corresponding to the corresponding correction area to the controller. The controller processes the deformation signal and acts on the three-dimensional motion mechanism 9, and obtains the working power of the ultrasonic shot peening gun 1, and the three-dimensional motion mechanism 9 drives the ultrasonic shot peening gun 1 in the corresponding correction area along the XY direction The walking speed and the working height in the Z direction, then the ultrasonic shot peening gun 1 and the negative pressure pipe 7 perform correction work until the correction work is completed. This step is the same as step 2 and step 3;

[0069] Step 6: Review: After the second correction is completed, the correction area is still judged in the same way as in step 4. If all the correction areas are qualified, the correction work is completed; if there are still some areas that are not qualified, continue to repeat steps 2 to 4 until all areas of the plate 101 are qualified.

[0070] The working power of the ultrasonic shot peening gun 1 acting on any orthopedic area in the above step 2 is p, and the specific calculation is as follows:

[0071] (1) The rated power of this type of ultrasonic shot peening gun 1 is obtained by means of nameplate, etc. as p 额 , and at the same time limit the minimum working power p of the ultrasonic shot peening gun 1 in this working mode 1 ;

[0072] (2) The controller obtains the deformation value a measured by the distance measuring sensor 15 corresponding to each correction area. X , number them and get a 1 , a 2 , a 3 ... (where X = 1, 2, 3...), where a min Indicates a 1 , a 2 , a 3 ...minimum value among;

[0073] It can be concluded that the working power of the ultrasonic shot peening gun 1 acting on any orthopedic area is:

[0074]

[0075] Where: p represents the working power of ultrasonic shot peening gun 1, p 1 Indicates the minimum power set for the ultrasonic shot peening gun 1, p 额 Expressed as the rated power of ultrasonic shot peening gun 1, a X It represents the deformation value corresponding to any orthopedic area, X=1, 2, 3... represents the number of each orthopedic area, a min Represented as a 1 , a 2, a 3 ...the minimum value among them. It should be noted that when the calculated p is greater than p 额 When , it means that the deformation amount corresponding to the orthopedic area is large, and a large working power is required to complete the orthopedic treatment. The upper limit of the working power of this type of ultrasonic shot peening gun 1 is p 额 , so the default is p 额 to carry out the work.

[0076] The specific calculation of the walking speed V of the ultrasonic shot peening gun 1 along the XY direction on the corresponding correction area in the above step 2 is as follows:

[0077] (1) The maximum travel speed v of the ultrasonic shot peening gun 1 is obtained based on the structural parameters of the equipment itself 1 and minimum walking speed v 2 , and the orthopedic constant k is obtained based on factors such as product type and equipment parameters. The value of k is generally 1000;

[0078] (2) The controller obtains the deformation value a measured by the distance measuring sensor 15 corresponding to each correction area. X , number them and get a 1 , a 2 , a 3 ... (where X = 1, 2, 3...), where a min Indicates a 1 , a 2 , a 3 ...minimum value among;

[0079] It can be concluded that the travel speed of the ultrasonic shot peening gun 1 along the XY direction on the corresponding correction area is:

[0080]

[0081] Where: v represents the travel speed of the ultrasonic shot peening gun 1 along the XY direction, v 1 It represents the maximum travel speed set by the ultrasonic shot peening gun 1, k represents the orthopedic constant, a X It represents the deformation value corresponding to any orthopedic area, X=1, 2, 3... represents the number of each orthopedic area, a min Represented as a 1 , a 2 , a 3 ...the minimum value among them. It should be noted that when the calculated v is less than v 2 When , it means that the deformation amount corresponding to the orthopedic area is large, and a slower walking speed is required to complete the orthopedic treatment. The lower limit of the walking speed of this type of ultrasonic shot peening gun 1 is v 2 , so the default is v 2 to carry out the work.

[0082] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An automatic ultrasonic correction device, characterized in that: The invention comprises an impact surface (3) formed by the ends of a plurality of impact needles (2) in an array on an ultrasonic shot peening gun (1), wherein a plurality of impact needles (2) are missing from the plurality of impact needles (2), so that the area where the plurality of impact needles (2) are missing forms an avoidance zone (301) for avoiding a burr portion (1022), and the avoidance zone (301) is arranged in a penetrating state on the impact surface (3), so that when the impact surface (3) moves along the length direction of the weld (102), the avoidance zone (301) can move along the impact surface (3) on the burr portion (1022).

2. The automatic ultrasonic correction device according to claim 1, characterized in that: The width of the avoidance area (301) is set to be greater than the boundary line distance of the burr portion (1022), so that the avoidance area (301) can pass through the burr portion (1022) having a curved structure portion.

3. The automatic ultrasonic correction device according to claim 1, characterized in that: The orthopedic device also includes a driving source (4) for driving the ultrasonic shot peening gun (1) to perform a rotational motion so that the avoidance zone (301) can pass through the curved structure portion on the burr portion (1022).

4. An automatic ultrasonic correction device according to any one of claims 1 to 3, characterized in that: The avoidance areas (301) are arranged in a straight line, and the avoidance areas (301) are provided in two groups and are arranged in parallel.

5. An automatic ultrasonic correction device according to any one of claims 1 to 3, characterized in that: The orthopedic device further comprises a cleaning component, the cleaning component comprising a sheet metal box (5) arranged on the ultrasonic shot peening gun (1), and the bottom of the sheet metal box (5) is provided with an array of bristles (6) for surrounding the impact surface (3); the cleaning component further comprises a negative pressure pipe (7) arranged on the top of the sheet metal box (5), and one end of the negative pressure pipe (7) extends into the bristles (6) arranged in an array.

6. An automatic ultrasonic correction device according to any one of claims 1 to 3, characterized in that: The orthopedic device also includes a machine tool (8), on which a three-dimensional motion mechanism (9) for mounting an ultrasonic shot peening gun (1) is arranged, and on which a shock absorbing member (16) for shock absorbing the ultrasonic shot peening gun (1) is arranged.

7. The automatic ultrasonic correction device according to claim 6, characterized in that: The machine tool (8) is provided with a fixture (17) for clamping a limiting plate (101), the fixture (17) comprising a base plate (10) arranged on the top of the machine tool (8), a plurality of coarse guide blocks (11) are evenly distributed on the base plate (10), a support block (12) is fixedly provided on the base plate (10) and is located in an enclosure formed by the plurality of coarse guide blocks (11), and the support blocks (12) are arranged in a plurality and evenly distributed in the enclosure, a positioning pin (13) is provided on the base plate (10) at a side position of the coarse guide block (11), a clamping member (14) is provided on the base plate (10), and an execution end of the clamping member (14) can move towards or away from a support surface formed by the top ends of the plurality of support blocks (12).

8. The automatic ultrasonic correction device according to claim 7, characterized in that: Each support block (12) is provided with a distance measuring sensor (15), and the distance measuring sensor (15) is located below a support surface formed by the top ends of the plurality of support blocks (12).

9. A correction method using an automatic ultrasonic correction device according to any one of claims 1 to 8, characterized in that: The steps include: Step 1: Loading: The plate (101) to be corrected is clamped and fixed by a clamp (17). At this time, the plate (101) is located above a plurality of distance measuring sensors (15). The plate (101) is divided into a plurality of correction areas according to the layout of the weld (102) on the plate (101). Each distance measuring sensor (15) corresponds to one correction area. Step 2: Preparation: The deformation variable signal of the corresponding orthopedic area in the initial state is obtained through each distance measuring sensor (15), and the deformation variable signal is transmitted to the controller. The controller processes the deformation variable signal and acts on the three-dimensional motion mechanism (9), and obtains the working power of the ultrasonic shot peening gun (1) and the walking speed of the ultrasonic shot peening gun (1) driven by the three-dimensional motion mechanism (9) on the corresponding orthopedic area along the XY direction; Step 3: Start: Start the ultrasonic shot peening gun (1) and the negative pressure pipe (7), and the three-dimensional motion mechanism (9) drives the ultrasonic shot peening gun (1) to move along the length direction of the weld (102). During this process, the burr portion (1022) in the weld (102) will be accommodated in the avoidance area (301) in the impact surface (3), and the impact surface (3) of the ultrasonic shot peening gun (1) only acts on the non-burr portion (1022) of the weld (102), thereby achieving corrective treatment of the weld (102) area; at the same time, the bristles (6) on the ultrasonic shot peening gun (1) will clean the waste, and the negative pressure pipe (7) will generate negative pressure inside the bristles (6) to suck away the waste; Step 4: Determination: After the first correction is completed, the deformation signals of each correction area of ​​the plate (101) after the first correction are measured again using multiple distance measuring sensors (15), and the deformation signals are transmitted to the controller to obtain the values ​​of each deformation. The controller uses the minimum deformation value as a reference, calculates the difference between the other deformation signal values ​​and the minimum deformation value, and obtains the difference. If the obtained difference exceeds a preset threshold, it means that the correction of the area corresponding to the deformation signal value is unqualified and needs to be corrected again. Otherwise, the correction is qualified. Step 5: Repeat: The area that failed the first correction is corrected again. The distance sensor (15) transmits the deformation signal corresponding to the corresponding correction area to the controller. The controller processes the deformation signal and acts on the three-dimensional motion mechanism (9), and obtains the working power of the ultrasonic shot peening gun (1) and the walking speed of the ultrasonic shot peening gun (1) driven by the three-dimensional motion mechanism (9) on the corresponding correction area along the XY direction. Then, the ultrasonic shot peening gun (1) and the negative pressure pipe (7) are used to perform the correction work until the correction work is completed. This step is the same as steps 2 and 3. Step 6: Review: After the second correction is completed, the correction area is still judged in the same way as in step 4. If all the correction areas are qualified, the correction work is completed; if there are still some areas that are not qualified, continue to repeat steps 2 to 4 until all areas of the plate (101) are qualified.

10. The correction method of the automatic ultrasonic correction device according to claim 9, characterized in that: The working power of the ultrasonic shot peening gun (1) in the above step 2 is p: Where: p represents the working power of the ultrasonic shot peening gun, p1 represents the minimum working power set for the ultrasonic shot peening gun, and p 额 Expressed as the rated power of the ultrasonic shot peening gun, a X It represents the deformation value corresponding to any orthopedic area, X=1, 2, 3... represents the number of each orthopedic area, a min Expressed as the minimum value among a1, a2, a3, ...

11. The correction method of the automatic ultrasonic correction device according to claim 9, characterized in that: In the above step 2, the ultrasonic shot peening gun (1) travels at a speed V along the XY direction on the corresponding correction area: Where: v represents the travel speed of the ultrasonic shot peening gun along the XY direction, v1 represents the maximum travel speed set for the ultrasonic shot peening gun, k represents the correction constant, a X It represents the deformation value corresponding to any orthopedic area, X=1, 2, 3... represents the number of each orthopedic area, a min Expressed as the minimum value among a1, a2, a3, ...

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