Numerical control shot blasting tool setting device and method based on double lasers

Abstract

The invention provides a numerical control shot peening tool setting device based on double lasers, and the device comprises a main body support provided with a nozzle, and the main body support and the nozzle are kept coaxial; the rotatable bracket is connected with the main body bracket through a central bolt; the first laser module is fixed on the main body bracket, and the first laser module and the main body bracket are coaxial; wherein laser emitted by the first laser module is located on the axis of the nozzle; the second laser module is fixed on the rotatable bracket and is vertical to the rotatable bracket; wherein the second laser module and the first laser module are located on the same plane; meanwhile, the invention further provides a numerical control shot peening tool setting method based on the double lasers. The distance between the nozzle and the workpiece can meet the process requirement while the tool setting point of the workpiece is ensured to coincide with the central axis of the nozzle.

Description

Technical Field

[0001] The present application belongs to the field of shot peening technology, and in particular relates to a dual-laser-based CNC shot peening tool setting device and method. Background Art

[0002] CNC shot peening is a process that uses the peening parameters and path defined by a CNC program to peen a workpiece. Tool setting is a critical step in CNC shot peening, precisely determining the spatial position between the nozzle and the workpiece. Proper tool setting ensures that the shot peening process follows the pre-defined path and parameters.

[0003] Therefore, before CNC shot peening, tool setting operation is required, that is, adjusting the relative position between the nozzle and the workpiece so that the nozzle and the workpiece maintain a preset distance, and the center axis of the nozzle passes through the tool setting position of the workpiece, thereby determining the relative position between the shot peening gun and the workpiece and ensuring the correctness of the shot peening processing path and parameters.

[0004] The current method for aligning CNC shot peening involves inserting a simple tool setting rod into the nozzle and adjusting the relative position between the nozzle and the workpiece until the tip of the rod aligns with the workpiece's tool setting position. This method has the following disadvantages: 1) The rod bends due to its own weight during use, affecting tool setting accuracy; 2) the rod interferes with the workpiece / tooling when the nozzle is moved; and 3) the plug-in clamping method can cause wear on the nozzle's inner wall. Summary of the Invention

[0005] Purpose of the invention: To address the problems of poor accuracy, easy interference with the workpiece, and wear on the nozzle caused by the traditional tool setting method using a tool rod, and the inability of the single laser / laser rangefinder tool setting method to ensure the distance between the nozzle and the workpiece, a CNC shot peening tool setting device and method based on dual lasers are proposed.

[0006] In a first aspect, the present application provides a dual-laser CNC shot peening tool setting device, the device comprising: A main body bracket is provided with a nozzle, wherein the main body bracket and the nozzle are kept coaxial; A rotatable bracket connected to the main bracket via a central bolt; A first laser module is fixed to the main body bracket, and the first laser module is coaxial with the main body bracket; wherein the laser emitted by the first laser module is located on the axis of the nozzle; The second laser module is fixed on the rotatable bracket and is perpendicular to the rotatable bracket; wherein the second laser module and the first laser module are located in the same plane.

[0007] Preferably, the main support comprises: The end positioning hole is used to install the nozzle.

[0008] Preferably, the device further comprises: A magnet is fixed to the bottom of the terminal positioning hole; wherein the nozzle is installed in the terminal positioning hole by the magnetic force of the magnet.

[0009] Preferably, the rotatable bracket can rotate around a central bolt, so as to adjust the angle between the main bracket and the rotatable bracket.

[0010] Preferably, after the angle between the main support and the rotatable support is adjusted, they can be fixed by tightening the center bolt to ensure that the angle does not change during the tool setting process.

[0011] Preferably, the device further comprises: An angle ruler, fixed on the main support; An angle pointer, fixed on the rotatable bracket; The angle pointer cooperates with the angle ruler to indicate and measure the angle between the main support and the rotatable support.

[0012] Preferably, the angle between the main support and the rotatable support is adjusted , change the preset value of the distance between the nozzle and the workpiece , there is the following relationship: ; Where, is the distance between the nozzle and the center bolt, is the distance between the second laser module and the center bolt.

[0013] In a second aspect, the present application further provides a dual-laser CNC shot peening tool setting method, which is applied to the device as described above, and comprises: Rotate the rotatable bracket and adjust the angle α between the main bracket and the rotatable bracket so that the preset distance L between the CNC shot peening nozzle and the workpiece meets the requirements of the process file; ; Where, is the distance between the nozzle and the center bolt, The distance between the second laser module and the center bolt Tighten the central bolt to keep the angle between the main bracket and the rotatable bracket constant; Adjust the position between the nozzle and the workpiece. During the adjustment process, it is possible to prioritize ensuring that the laser light emitted by the first laser module passes through the workpiece tool setting point. Then, the relative distance between the two is adjusted by moving the nozzle or the workpiece. When the laser light emitted by the first laser module and the second laser module converges on the workpiece tool setting point, the precise tool setting of the CNC shot peening process is completed.

[0014] Preferably, the first laser module ensures that the workpiece reference point is located on the central axis of the nozzle; The combined use of the first laser module and the second laser module ensures that the distance between the nozzle and the workpiece meets the process requirements.

[0015] The beneficial effects of this application are: This application proposes a dual-laser-based CNC shot peening tool setting device and tool setting method, which can ensure that the tool setting point of the workpiece coincides with the center axis of the nozzle while ensuring that the distance between the nozzle and the workpiece meets the process requirements, thereby improving the accuracy of tool setting, reducing interference between the tool setting device and the workpiece / tooling, and reducing wear caused to the inner diameter of the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of a tool setting device provided in an embodiment of the present application; Figure 2 A schematic diagram of a tool setting process for CNC shot peening provided in an embodiment of the present application; Among them: 1 hose, 2 nozzle, 3 magnet, 4 main body bracket, 5 center bolt, 6 angle ruler, 7 rotatable bracket, 8 angle pointer, 9 first laser module, 10 second laser module, 11 laser beam, 12 workpiece, 13 workpiece setting point. DETAILED DESCRIPTION

[0017] The following is combined with Figure 1 -Attached Figure 2 This application is described in further detail.

[0018] The present invention provides a CNC shot peening tool setting device and tool setting method with a cross-arrangement of two lasers. The device comprises a magnet, a main body bracket, a center bolt, an angle ruler, a rotatable bracket, an angle pointer, and two laser modules.

[0019] The first laser module is fixed to the main bracket, coaxial with the nozzle; the second laser module is fixed to the rotatable bracket, located in the same plane as the first laser module. A magnet is fixed to the bottom of the positioning hole at the end of the main bracket, allowing the device to be magnetically attached to the nozzle. The relative position between the nozzle and the workpiece is adjusted so that the laser beams emitted by the two laser modules converge at the workpiece's tool setting point, completing the shot peening precision tool setting.

[0020] The tool setting device not only ensures that the nozzle center axis passes through the workpiece tool setting point, but also ensures that the distance between the nozzle and the workpiece meets the process requirements. Compared with traditional tool setting devices, the present invention can significantly improve the accuracy and operational convenience of tool setting in CNC shot peening.

[0021] In an embodiment of the present application, a dual-laser-based CNC shot peening tool setting device is provided, comprising: a magnet, a main body bracket, a center bolt, an angle ruler, a rotatable bracket, an angle pointer and two laser modules.

[0022] Of the two laser modules, the first laser module is fixed on the main bracket and is coaxial with the main bracket, and the main bracket remains coaxial with the nozzle through the end positioning hole. Therefore, the laser emitted by the first laser module is located on the axis of the nozzle; the second laser module is fixed on the rotatable bracket, perpendicular to the rotatable bracket and located in the same plane as the first laser module.

[0023] Among them, the magnet is fixed to the bottom of the positioning hole at the end of the main bracket and is adsorbed on the nozzle by magnetic force, which facilitates the connection and disassembly of the entire tool setting device and the nozzle.

[0024] The rotatable bracket can be rotated around the central bolt to adjust the angle between the main bracket and the rotatable bracket. By adjusting this angle, the preset value of the distance between the CNC shot blasting nozzle and the workpiece can be changed, and the preset value can be calculated based on the angle value.

[0025] Among them, the center bolt can not only serve as the rotation axis of the rotatable bracket, but also fix the position of the rotatable bracket by tightening the bolt to ensure that the angle between the main bracket and the rotatable bracket does not change during the tool setting process.

[0026] The angle ruler is fixed on the main bracket, and the angle pointer is fixed on the rotatable bracket to indicate the angle between the main bracket and the rotatable bracket.

[0027] In other embodiments of the present application, based on the above-mentioned CNC shot peening tool setting device, a CNC shot peening tool setting method and steps are provided as follows: 1) Rotate the rotatable bracket and adjust the angle between the main bracket and the rotatable bracket so that the distance between the CNC shot peening nozzle and the workpiece meets the requirements of the process document; tighten the center bolt to keep the angle between the main bracket and the rotatable bracket constant.

[0028] 2) Install the positioning hole at the end of the main bracket on the nozzle of the CNC shot blasting machine, and the two are connected together under the attraction of the magnet.

[0029] 3) Adjust the position between the nozzle and the workpiece. During the adjustment process, it is prioritized to ensure that the laser emitted by the first laser module passes through the workpiece tool setting point. Then, the relative distance between the two is adjusted by moving the nozzle or the workpiece. When the lasers emitted by the first laser module and the second laser module converge at the workpiece tool setting point, the precise tool setting of the CNC shot peening process is completed.

[0030] The first laser module ensures that the tool point of the workpiece is located on the central axis of the nozzle; and the first laser module and the second laser module are used together to ensure that the distance between the nozzle and the workpiece meets the process requirements.

[0031] The present invention proposes a tool setting device and method for CNC shot peening based on dual lasers. The laser tool setting method can avoid the problem of interference with the workpiece / tooling in the traditional tool setting rod type. The positioning and clamping method of the positioning hole and the outer cylindrical surface of the nozzle and the magnetic attraction is adopted, which not only facilitates the installation and disassembly of the tool setting device, but also effectively avoids the problem of wear of the inner wall of the nozzle by the plug-in clamping method. The cross-arrangement of dual lasers is used for CNC shot peening tool setting, which not only ensures that the workpiece tool setting point coincides with the center axis of the nozzle, but also ensures that the distance between the nozzle and the workpiece meets the process requirements, making up for the problem that a single laser / laser rangefinder cannot feedback the distance between the nozzle and the workpiece.

[0032] At the same time, by adjusting the angle between the main support and the rotatable support, the preset distance between the nozzle and the workpiece can be changed, meeting the tool setting needs of a variety of parts with different tool setting distance requirements. This tool setting device and method effectively improves the accuracy and ease of tool setting in CNC shot peening, and is of great significance to improving the quality and efficiency of CNC shot peening.

[0033] In one possible implementation, Figure 1 As shown, this embodiment relates to a CNC shot peening tool setting device based on dual lasers, including a nozzle 2, a magnet 3, a main body bracket 4, a center bolt 5, an angle ruler 6, a rotatable bracket 7, an angle pointer 8, a first laser module 9, and a second laser module 10.

[0034] Among them, the first laser module 9 is fixed on the main support 4 and is coaxial with the main support 4; the main support 4 remains coaxial with the nozzle 2 through the end positioning hole, so that the laser beam emitted by the first laser module 9 is located on the axis of the nozzle 2.

[0035] The second laser module 10 is fixed on the rotatable bracket 7 , is perpendicular to the rotatable bracket 7 and is located in the same plane as the first laser module 9 .

[0036] Among them, the magnet 3 is fixed to the bottom of the positioning hole at the end of the main bracket 4, and is adsorbed on the nozzle 2 by magnetic force, which facilitates the connection and disassembly of the entire tool setting device and the nozzle 2.

[0037] The rotatable bracket 7 can rotate around the central bolt 5 to adjust the angle between the main bracket 4 and the rotatable bracket 7. By adjusting the angle, the preset value of the distance L between the CNC shot peening nozzle 2 and the workpiece 12 can be changed, and the relationship is as follows: .

[0038] Among them, the center bolt 5 can not only serve as the rotation axis of the rotatable bracket 7, but also fix the position of the rotatable bracket 7 by tightening the bolt, ensuring that the angle between the main bracket 4 and the rotatable bracket 7 does not change during the tool setting process.

[0039] The angle ruler 6 is fixed on the main support 4 , and the angle pointer 8 is fixed on the rotatable support 7 , and is used to indicate the angle between the main support 4 and the rotatable support 7 .

[0040] According to the above device, the tool setting method and steps for CNC shot peening are as follows: 1) Rotate the rotatable bracket 7 and adjust the angle between the main bracket 4 and the rotatable bracket 7 so that the distance between the CNC shot peening nozzle 2 and the workpiece 12 meets the requirements of the process document; tighten the center bolt 5 so that the angle between the main bracket 4 and the rotatable bracket 7 remains constant.

[0041] 2) Install the positioning hole at the end of the main bracket 4 on the nozzle 2 of the CNC shot blasting machine, and the two are connected together under the attraction of the magnet 3.

[0042] 3) Adjust the relative position between the nozzle 2 and the workpiece 12. If the distance between the nozzle and the workpiece is too small, it is necessary to increase the distance between the two by adjusting the nozzle or the workpiece. During the adjustment process, the laser beam generated by the first laser module 9 can always be kept passing through the workpiece tool 13. Figure 2 (a); On the contrary, if the distance between the nozzle and the workpiece is too large, it is necessary to reduce the distance between the two by adjusting the nozzle or the workpiece. During the adjustment process, the laser beam generated by the first laser module 9 can always be kept passing through the workpiece tool 13, as shown in FIG. Figure 2 (b) As shown. When the lasers emitted by the first laser module 9 and the second laser module 10 converge at the workpiece setting point 1 ( Figure 1 ), which completes the precise tool setting of CNC shot peening.

[0043] The first laser module 9 ensures that the workpiece reference point is located on the center axis of the nozzle, and the first laser module 9 and the second laser module 10 are used in conjunction to ensure that the distance between the nozzle 2 and the workpiece 12 meets the process requirements.

Claims

1. A dual-laser CNC shot peening tool setting device, characterized in that: The device comprises: A main body bracket is provided with a nozzle, wherein the main body bracket and the nozzle are kept coaxial; A rotatable bracket connected to the main bracket via a central bolt; A first laser module is fixed to the main body bracket, and the first laser module is coaxial with the main body bracket; wherein the laser emitted by the first laser module is located on the axis of the nozzle; The second laser module is fixed on the rotatable bracket and is perpendicular to the rotatable bracket. The second laser module and the first laser module are located in the same plane. The first laser module and the second laser module are used together to ensure that the distance between the nozzle and the workpiece meets the process requirements.

2. The device according to claim 1, wherein The main support comprises: The end positioning hole is used to install the nozzle.

3. The device according to claim 2, wherein The device further comprises: A magnet is fixed to the bottom of the terminal positioning hole; wherein the nozzle is installed in the terminal positioning hole by the magnetic force of the magnet.

4. The device according to claim 1, wherein The rotatable bracket can be rotated around a central bolt, so as to adjust the angle between the main bracket and the rotatable bracket.

5. The device according to claim 4, characterized in that After the angle between the main support and the rotatable support is adjusted, they can be fixed by tightening the center bolt to ensure that the angle does not change during the tool setting process.

6. The device according to claim 5, characterized in that The device further comprises: An angle ruler, fixed on the main support; An angle pointer, fixed on the rotatable bracket; The angle pointer cooperates with the angle ruler to indicate and measure the angle between the main support and the rotatable support.

7. The device according to claim 6, characterized in that Adjust the angle between the main support and the rotatable support , change the preset value of the distance between the nozzle and the workpiece , there is the following relationship: ; Where, is the distance between the nozzle and the center bolt, is the distance between the second laser module and the center bolt.

8. A dual-laser CNC shot peening tool setting method, characterized in that: The method is applied to the device according to any one of claims 1 to 7, and the method includes: Rotate the rotatable bracket and adjust the angle α between the main bracket and the rotatable bracket so that the preset distance L between the CNC shot peening nozzle and the workpiece meets the requirements of the process file; ； Where, is the distance between the nozzle and the center bolt, The distance between the second laser module and the center bolt Tighten the central bolt to keep the angle between the main bracket and the rotatable bracket constant; Adjust the position between the nozzle and the workpiece. During the adjustment process, it is possible to prioritize ensuring that the laser light emitted by the first laser module passes through the workpiece tool setting point. Then, the relative distance between the two is adjusted by moving the nozzle or the workpiece. When the laser light emitted by the first laser module and the second laser module converges on the workpiece tool setting point, the precise tool setting of the CNC shot peening process is completed.

9. The method according to claim 8, wherein The first laser module ensures that the workpiece reference point is located on the center axis of the nozzle; The combined use of the first laser module and the second laser module ensures that the distance between the nozzle and the workpiece meets the process requirements.

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