Multi-angle continuous machining method for workpiece

Abstract

The invention relates to a multi-angle continuous machining method for a workpiece, which is used for solving the technical problem that a plurality of surfaces of the workpiece cannot be machined by an existing fixing method, and the fixing method comprises the following steps: a clamping assembly controls a clamping and fixing assembly to relatively move on a guide sliding rail so as to clamp and fix the workpiece; the rotating assembly drives the clamping assembly and the workpiece to integrally rotate to a preset angle; after the workpiece rotates to a preset angle, the workpiece is machined by the machining component; the workpiece rotates, and multi-angle continuous machining of the workpiece is achieved; the clamping assembly clamps a workpiece, the rotating assembly enables the workpiece to rotate, in the rotating process of the workpiece, the machining component can continuously machine the workpiece, the position and posture of the machining component do not need to be adjusted frequently, the auxiliary time in the machining process is shortened, and therefore the machining efficiency is improved, and meanwhile multi-angle machining of the workpiece can be completed through one-time clamping.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of machining, in particular to a multi-angle continuous machining method of a workpiece. BACKGROUND

[0002] In machining, a fixing device equipped with clamping devices is often used. When starting to fix, the operator will place the workpiece in the fixing device at the appropriate position. Then, the clamping devices are controlled to move towards the workpiece from opposite directions, which are like two opposite hands, gradually approaching the workpiece and applying appropriate clamping force. Through this opposite clamping method, the workpiece can be stably positioned in the space formed by the clamping devices, so that it will not easily shift or shake during machining, thereby creating favorable conditions for the subsequent accurate machining of the workpiece.

[0003] However, in the existing fixing method, the ordinary gripper can only support machining operation on one face of the workpiece after completing the fixing with the workpiece. If the other face of the workpiece needs to be machined, the workpiece must be removed from the gripper and then re-clamped and fixed. This operation method is easy to cause position deviation of the workpiece when re-clamping, which not only affects the machining accuracy of the workpiece, but also leads to a decrease in the machining efficiency of the workpiece, ultimately increasing the time required for the entire machining process. SUMMARY

[0004] The present application aims to provide a multi-angle continuous machining method of a workpiece to solve the technical problem of the need to adjust the position and attitude of the machining member when machining the workpiece at different angles in the existing fixing method.

[0005] The main purpose of the present application is achieved by the following technical solutions:

[0006] A multi-angle continuous machining method of a workpiece, comprising:

[0007] S1, the clamping assembly controls the relative movement of the clamping assembly on the guide rail to clamp and fix the workpiece;

[0008] S2, the rotating assembly drives the clamping assembly and the workpiece to rotate as a whole to a predetermined angle;

[0009] S3, after the workpiece is rotated to the predetermined angle, the machining member machines the workpiece; the workpiece continues to rotate to realize multi-angle continuous machining of the workpiece.

[0010] Further, S1 comprises:

[0011] S1.1, start the clamping assembly and drive the gear teeth to rotate;

[0012] S1.2, the gear teeth drive the two racks to move in opposite directions synchronously in the accommodation area;

[0013] S1.3, by connecting the translation block on the rack, linear motion is transmitted to the clamping assembly, so that the first clamping module and the second clamping module move towards each other to clamp the workpiece.

[0014] Further, S2 comprises:

[0015] S2.1, the rotating assembly is started to drive the clamping assembly on one side to rotate;

[0016] S2.1, the clamping assembly on one side drives the clamping assembly on the other side to rotate, realizing the rotation of the workpiece.

[0017] Further, in S1.2, the clamping assembly rotates at a first speed to approach the workpiece; before contacting the workpiece, it is switched to a second speed to rotate to clamp the workpiece by the first clamping module and the second clamping module, wherein the second speed is less than the first speed.

[0018] Further, in S1.3, the current value of the clamping assembly is monitored in real time, and when the current value reaches a preset threshold, it is determined that the workpiece has been contacted and the movement is stopped, and the clamping is completed.

[0019] Further, in S2, the rotating assembly drives the clamping assembly and the workpiece to do index rotation.

[0020] Further, in S2, 10° is taken as the index unit, and the preset machining angle is stepped to.

[0021] Further, in S2, to the predetermined angle, the clamping assembly after rotation is mechanically locked by the positioning member.

[0022] Further, the mechanical locking comprises: inserting the positioning column into the corresponding positioning hole of the follow-up disc fixedly sleeved on the rotating shaft, and limiting the rotation of the rotating shaft and the clamping handle through the cooperation of the positioning column and the positioning hole.

[0023] Further, in S3, the surface that has completed machining and / or is being machined and the clamping area are sprayed with gas flow or cleaning liquid to remove cutting chips and cooling liquid residues.

[0024] In one or more technical solutions provided in the exemplary embodiments of the application, at least one of the following beneficial effects can be achieved.

[0025] (1) In the technical solution of the multi-angle continuous machining method of the workpiece in the application, the clamping assembly clamps the workpiece, the rotating assembly rotates the workpiece, and the machining member can continuously machine the workpiece during the rotation process, without the need to frequently adjust the position and posture of the machining member, reducing the auxiliary time in the machining process, thereby improving the machining efficiency, and at the same time, the multi-angle machining of the workpiece can be completed by one clamping, avoiding the error and time waste caused by multiple clamping.

[0026] (2) The multi-angle continuous machining method of the workpiece in the application, the combined action of the rigid support and the buffer shock absorption makes the workpiece maintain stable geometric shape and position accuracy during machining, reduces the size deviation caused by workpiece deformation and vibration, thereby improving the size accuracy of the machined parts; the flexible material buffer pad can adapt to the slight ups and downs of the workpiece surface, provide uniform support force, avoid the deformation of the workpiece shape caused by uneven support, the rigid support column group limits the overall displacement of the workpiece, and ensures the shape accuracy of the workpiece after machining; the buffer shock absorption function can reduce the vibration and impact during cutting, reduce the defects such as burrs and vibration lines on the workpiece surface, the buffer effect of the flexible material buffer pad on the clamping force avoids the damage of the clamping force to the workpiece surface, and makes the machining surface more smooth and flat.

[0027] In the application, the above technical solutions can be combined with each other to realize more preferred combination solutions. Other features and advantages of the application will be described in the subsequent description, and some advantages will become apparent from the description or be understood by implementing the application. The purposes and other advantages of the application can be realized and obtained from the contents specifically pointed out in the description and the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0028] The accompanying drawings illustrate exemplary embodiments of the application and, together with the general description given above, serve to explain the principles of the application. These drawings are included herein to provide further understanding of the application and are incorporated in and constitute part of the specification;

[0029] Figure 1 is a flowchart of the multi-angle continuous machining method of the workpiece in the embodiment of the application;

[0030] Figure 2 is a structural schematic diagram of the fixing device for multi-angle machining in the embodiment of the application;

[0031] Figure 3 is a structural schematic diagram of the clamping assembly in the embodiment of the application;

[0032] Figure 4 is a structural schematic diagram of the clamping handle in the embodiment of the application;

[0033] Figure 5 is a structural schematic diagram of the support column group in the embodiment of the application;

[0034] Figure 6 is a structural schematic diagram of a first lifting mechanism in the embodiment of the application;

[0035] Figure 7 is a structural schematic diagram of another first lifting mechanism in the embodiment of the application;

[0036] Figure 8 is a structural schematic diagram of a positioning member in an embodiment of the present application;

[0037] Figure 9 is a structural schematic diagram of a column assembly member in an embodiment of the present application;

[0038] Figure 10 is a structural schematic diagram of a second lifting mechanism in an embodiment of the present application.

[0039] Reference signs are as follows:

[0040] 1 - operation base, 11 - accommodation area, 12 - connecting channel, 2 - clamping assembly, 21 - first clamping module, 22 - second clamping module, 23 - guide slide rail, 200 - clamping handle, 2001 - linkage rod, 2002 - bearing chassis, 2003 - buffer pad, 2004 - first through hole, 2005 - second through hole, 2006 - column assembly member, 0061 - member sleeve, 0062 - extension rod, 2007 - connecting rib, 2008 - first lifting mechanism, 2009 - third motor, 2010 - lifting plate, 201 - support, 202 - guide slide block, 2021 - first sliding groove, 0011 - second lifting mechanism, 0012 - rotating piece, 0013 - movable block, 0014 - movable groove, 0015 - moving rod, 0016 - bracket, 0017 - ball hinge rod, 0018 - rod body, 0019 - ball head, 0020 - first ball sleeve, 0021 - second ball sleeve, 3 - clamping assembly, 31 - first motor, 32 - driving wheel tooth, 33 - forward meshing rack, 34 - reverse meshing rack, 35 - translation block, 4 - rotation assembly, 5 - positioning member, 51 - rotation shaft, 52 - follower disc, 53 - positioning hole, 54 - positioning column, 6 - processing member. DETAILED DESCRIPTION

[0041] In order to make the technical problems to be solved by the present application, technical solutions and beneficial effects more clearly understood, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0042] The technical solutions of the present application and how the technical solutions of the present application solve the above technical problems will be described in detail below with specific embodiments.

[0043] Embodiment 1

[0044] As Figure 1As shown, the embodiment 1 of the present application provides a multi-angle continuous machining method of a workpiece, which comprises: S1, the clamping assembly controls the relative movement of the clamping assembly on the guide slide rail to clamp and fix the workpiece; S2, the rotating assembly drives the whole rotation of the clamping assembly and the workpiece to a predetermined angle; S3, after the workpiece is rotated to the predetermined angle, the machining member processes the workpiece; the workpiece continues to rotate to realize the multi-angle continuous machining of the workpiece.

[0045] In S1, through the control of the clamping assembly (such as a servo motor), the clamping assembly moves along the guide slide rail to adjust the spacing between the clamping assemblies to adapt to workpieces of different sizes and shapes, and clamps and fixes the workpiece, so as to ensure that the workpiece maintains a stable position and state in the subsequent machining process, avoiding affecting the machining precision and quality due to the shaking or displacement of the workpiece; in S2, the rotating assembly (such as a servo motor) provides rotating power for the clamping assembly and the workpiece, so that the workpiece can be rotated according to the preset angle, thereby adjusting the workpiece to an angle suitable for machining, so that the machining member can operate the machining part of the workpiece, and by controlling the rotation angle, different machining requirements can be met to realize multi-angle machining of the workpiece; after the workpiece is rotated to the predetermined angle, the machining member starts the actual machining operation of the workpiece, such as cutting, drilling, polishing, etc., and the workpiece continues to rotate, so that the machining member can continuously process different parts of the workpiece without changing its own position and posture, thereby realizing multi-angle machining of the workpiece and improving the machining efficiency and machining range.

[0046] The clamping assembly clamps the workpiece, and the rotating assembly rotates the workpiece. During the rotation of the workpiece, the machining member can continuously process it without frequent adjustment of the position and posture of the machining member, reducing the auxiliary time in the machining process, thereby improving the machining efficiency. At the same time, the multi-angle machining of the workpiece can be completed by clamping once, avoiding errors and time waste caused by multiple clamping.

[0047] In some specific embodiments, S1 comprises: S1.1, starting the clamping assembly to drive the gear rotation; S1.2, driving the two racks to move in the opposite direction synchronously in the accommodation area by the gear; S1.3, transmitting linear motion to the clamping assembly through the translation block connected to the rack to make the first clamping module and the second clamping module move towards each other to clamp the workpiece.

[0048] The driving wheel teeth rotate under the drive of the clamping assembly, and transmit power to other components through their own rotation. The driving wheel teeth and the two racks form a rack and pinion transmission mechanism, which converts the rotary motion of the driving wheel teeth into the linear motion of the racks. The two racks move in opposite directions synchronously, and the clamping assemblies on both sides can move towards the middle or outward at the same time. The opposite synchronization ensures the symmetry and coordination of the clamping action. When clamping the workpiece, the workpiece can be subjected to uniform force on both sides, reducing the occurrence of workpiece tilting, deformation or unstable clamping due to excessive or insufficient unilateral force. The first clamping module and the second clamping module move towards each other under the drive of the translation block, gradually approach and finally clamp the workpiece.

[0049] In some specific embodiments, S2 includes: S2.1, starting the rotating assembly to drive the clamping assembly on one side to rotate; S2.2, the clamping assembly on one side drives the clamping assembly on the other side to rotate, realizing the rotation of the workpiece.

[0050] After the clamping assembly on one side starts to rotate under the action of the rotating assembly, it transmits power to the clamping assembly on the other side through the connection relationship (such as friction, mechanical connection, etc.) between the workpiece and the clamping assembly on the other side. This power transmission mode realizes the synchronous rotation of the clamping assemblies on both sides, ensuring the stability of the workpiece rotation. The rotating assembly can adjust the rotation parameters to make the workpiece rotate to the desired angle, so that the machining member can process different surfaces and different positions of the workpiece, which expands the range and flexibility of machining and can meet the machining needs of various complex-shaped workpieces. At the same time, by realizing continuous and smooth rotation of the workpiece, the downtime caused by adjusting the angle of the workpiece during machining is reduced, the machining efficiency is improved, and the production cycle is shortened.

[0051] In some specific embodiments, in S1.2, the clamping assembly rotates at a first speed to approach the workpiece with the first clamping module and the second clamping module; before contacting the workpiece, it is switched to rotate at a second speed to clamp the workpiece with the first clamping module and the second clamping module, wherein the second speed is less than the first speed.

[0052] The first speed is set relatively fast, which aims to shorten the time required for the first clamping module and the second clamping module to move from the initial position to the position close to the workpiece. Switching to a slower second speed during the process of approaching the workpiece can more accurately control the movement of the clamping unit when it is about to contact the workpiece. The slower speed can give the operator or the control system more time to perceive and adjust the position of the clamping unit, ensuring that the clamping unit can accurately reach the clamping point of the workpiece and avoiding deviation of the clamping position caused by excessive speed. By first approaching the workpiece with the clamping unit at a faster first speed, unnecessary movement time is reduced, the overall production efficiency is improved, and the accuracy of the clamping position and the stability of the clamping force are ensured by switching to a slower second speed for precise clamping.

[0053] In some specific embodiments, in S1.3, the current value of the clamping assembly is monitored in real time, and when the current value reaches a preset threshold value, it is determined that the workpiece has been contacted and the movement is stopped, and the clamping is completed.

[0054] During the operation of the clamping assembly, the current value will change with the change of the load. By monitoring the current value in real time, the current operation state of the driving member can be obtained in time, and the load borne by the clamping assembly can be understood. When the monitored current value reaches the preset threshold value, it means that the clamping unit encounters sufficient resistance during movement, and the resistance is usually caused by contact with the workpiece. By monitoring the current value in real time and determining the contact with the workpiece according to the preset threshold value, the contact time of the clamping unit with the workpiece can be more accurately determined, and the deviation of the clamping position caused by inaccurate position determination can be avoided. In addition, timely stopping of movement can prevent the clamping unit from exerting excessive force on the workpiece, effectively protecting the safety of the workpiece.

[0055] In some specific embodiments, in S2, the rotating assembly drives the clamping assembly and the workpiece to perform indexing rotation.

[0056] Indexing rotation can make the workpiece rotate intermittently according to a preset angle, and rotate different machining surfaces to appropriate machining positions in sequence, so that the machining equipment can operate on each surface of the workpiece without frequent re-clamping of the workpiece, thereby simplifying the machining process.

[0057] On this basis, in S2, the preset machining angle is stepped to 10° as an indexing unit, and the stepping rotation is performed with 10° as an indexing unit, which can provide accurate angle positioning for machining. Compared with continuous rotation or inaccurate indexing rotation, stepping with a fixed 10° as an indexing unit can effectively reduce the cumulative error.

[0058] In some specific embodiments, in S2, when the predetermined angle is reached, the clamping assembly after rotation is mechanically locked by a positioning member.

[0059] After the clamping assembly reaches the predetermined angle, there is a risk of angular deviation of the clamping assembly and the workpiece due to external forces such as cutting force and vibration during machining. The positioning member mechanically locks the clamping assembly at the current position to prevent relative rotation, thereby ensuring that the workpiece always maintains the predetermined angle during machining and ensuring the accuracy of machining.

[0060] On this basis, the mechanical locking includes: inserting the positioning column into the corresponding positioning hole of the follow-up disc arranged on the rotating shaft through the fixing sleeve, limiting the rotation of the rotating shaft and the clamping handle through the cooperation of the positioning column and the positioning hole, and effectively preventing the collision of the tool and the workpiece, the damage of the equipment parts and other accidents, and ensuring the safe operation of the equipment.

[0061] In some specific embodiments, in S3, the surface and the clamping area that have been machined and / or are being machined are sprayed with gas flow or cleaning liquid to remove the cutting chips and the cooling liquid residue.

[0062] By spraying the gas flow or the cleaning liquid, the cutting chips and the cooling liquid can be blown away or washed away from the surface of the workpiece, so that the surface of the workpiece is more clean and smooth, and at the same time, the cutting temperature is reduced, the tool wear is reduced, and the machining quality is ensured.

[0063] Embodiment 2

[0064] Embodiment 2 of the present application is a further improvement based on embodiment 1. In S1, the workpiece is clamped in the clamping handle of the clamping assembly, and the clamping handle is provided with rigid support through the support column group, and at the same time, the buffer pad made of flexible material provides buffering and shock absorption.

[0065] The support column group is used to bear the main load. In the process of machining, the workpiece is subjected to various external forces such as cutting force and clamping force. The support column group is made of high-strength material and has high rigidity and carrying capacity, so it can bear these external forces and ensure that the workpiece maintains a stable posture during machining. Rigid support can reduce the vibration and deformation of the workpiece during machining, thereby improving the machining precision. At the same time, when clamping the workpiece, the clamping force may cause damage to the surface of the workpiece, especially for some workpieces with high surface quality requirements. The buffer pad made of flexible material can play a buffering role, disperse the clamping force, and avoid the clamping force being too concentrated to cause indentation, depression and other defects on the surface of the workpiece. In addition, vibration will be generated during machining, which will affect the machining precision and also reduce the surface quality of the workpiece. The flexible material buffer pad has good elasticity and damping properties, can absorb and attenuate vibration energy, and reduce the influence of vibration on the workpiece. For example, the buffer pad can be made of TPU material. In addition, the flexible material buffer pad has certain flexibility and deformability, can adapt to the irregular shape of the surface of the workpiece, and provides more uniform support.

[0066] In summary, the combined effect of rigid support and cushioning damping enables the workpiece to maintain stable geometric shape and positional accuracy during machining, reduces dimensional deviations caused by workpiece deformation and vibration, and improves the dimensional accuracy of machined parts; the flexible material cushion can adapt to the slight undulations on the surface of the workpiece, providing uniform support force and avoiding deformation of the workpiece shape caused by uneven support; the rigid support column group limits the overall displacement of the workpiece, ensuring the shape accuracy of the workpiece after machining; the cushioning damping function can reduce vibration and impact during cutting, reduce defects such as burrs and vibration marks on the workpiece surface, and the cushioning effect of the flexible material cushion avoids damage to the workpiece surface caused by clamping force, making the machined surface smoother and flatter; the support mode of rigid combination with cushioning damping can provide the possibility for machining of some special workpieces, such as thin-walled parts and easily deformed parts. The cushioning effect of the flexible material cushion can avoid damage to these workpieces, and the rigid support column group ensures stability during machining.

[0067] In some specific embodiments, S1 includes: making the surface to be clamped of the workpiece simultaneously contact the top end of the support column group and the upper surface of the cushioning pad; providing rigid support force for the workpiece by the support column group passing through the first through hole on the cushioning pad; providing distributed flexible support force and vibration damping for the workpiece by the cushioning pad and the second through hole on the cushioning pad.

[0068] The surface to be clamped of the workpiece simultaneously contacts the top end of the support column group and the upper surface of the cushioning pad, which can constrain the workpiece from multiple directions through the double contact mode, the top end of the support column group provides a clear geometric positioning point for the workpiece, ensuring the accurate position of the workpiece in space, and the contact with the upper surface of the cushioning pad increases the contact area, making the workpiece more stable when initially placed, reducing the shaking or displacement caused by slight external force. In addition, the flexibility of the cushioning pad can adapt to the unevenness or slight undulations that may exist on the surface to be clamped of the workpiece, and together with the top end of the support column group, it enables the workpiece to have good contact with the clamping handle; through the cooperation of flexible support and vibration damping, the feedback of workpiece vibration to the machine tool can be reduced, the overall vibration level of the machine tool can be reduced, the machining stability and reliability of the machine tool can be improved, and equipment failure and part damage caused by vibration can be reduced.

[0069] In some specific embodiments, it also includes a support height adjustment step: adjusting the distance between the support base and the cushioning pad by the first lifting mechanism, thereby changing the relative height between the top end of the column group member and the upper surface of the cushioning pad.

[0070] By applying a vertical force, directly acting on the supporting chassis, the distance between the supporting chassis and the buffer pad is changed, thereby adjusting the contact structure directly contacting the workpiece, forming a flexible support first contacting the workpiece, a rigid support providing a support basis for the flexible support, the flexible support filling the small concave and convex of the workpiece surface through deformation, expanding the actual contact area, which can reduce local stress concentration, the damping characteristics of the flexible support can attenuate high-frequency vibration, which can reduce the surface roughness of the workpiece during machining, and the rigid support bears the main load, reducing the fatigue damage of the flexible support.

[0071] In some specific embodiments, the support height adjustment step is realized by controlling a plurality of independently operated jacking units, each jacking unit including a third motor driven screw unit, thereby moving the lifting plate to independently adjust the support height at different positions on the clamping handle.

[0072] The independent adjustment of multiple jacking units can adapt to the support requirements of irregular curved surface workpieces, avoiding the local suspension or overpressure of traditional rigid support.

[0073] Embodiment 3

[0074] The embodiment of the application provides a fixing device for multi-angle machining, which is used for executing the method described in embodiment 1 or embodiment 2, and includes an operation base 1, a clamping assembly 2, a clamping assembly 3 and a rotating assembly 4 are installed on the operation base 1; the clamping assembly 3 is connected to the clamping assembly 2 to move the clamping assembly 2, and the rotating assembly 4 is connected to the clamping assembly 2 to rotate the clamping assembly 2.

[0075] The operation base 1 provides mounting positions and supports for the clamping assembly 2, the clamping assembly 3 and the rotating assembly 4; the clamping assembly 2 directly contacts the workpiece, and ensures that the workpiece does not displace or shake during the machining process through clamping (such as mechanical clamping, hydraulic clamping, etc.); the clamping assembly 3 is connected to the clamping assembly 2 to provide clamping power for the clamping assembly 2, and the clamping assembly 2 clamps the workpiece; the rotating assembly 4 is connected to the clamping assembly 2 to rotate the clamping assembly 2, and through the action of the rotating assembly 4, the clamping assembly 2 can drive the workpiece to rotate to realize the conversion of different surfaces of the workpiece, so as to machine each surface of the workpiece, and in summary, the clamping assembly 3 clamps the workpiece by the clamping assembly 2, the rotating assembly 4 rotates the clamping assembly 2, and the two cooperate to realize multi-angle machining of the workpiece on the operation base 1, improve the flexibility and efficiency of machining, and do not need to frequently disassemble and reinstall the workpiece to change the machining angle, thereby solving the technical problems existing in the prior art.

[0076] In some specific embodiments, such as Figure 2As shown, the clamping assembly 2 comprises a first clamping module 21, a second clamping module 22 and a guide slide rail 23, the first clamping module 21 and the second clamping module 22 are symmetrically arranged on the operation base 1, and the first clamping module 21 and the second clamping module 22 are each provided with a clamping handle 200, and the first clamping module 21 and the second clamping module 22 are arranged on and movable on the guide slide rail 23.

[0077] The first clamping module 21 is provided with a clamping handle 200 for directly clamping a part of the workpiece, and through the cooperation of the clamping handle 200 and the workpiece, the clamping force can be applied to the workpiece, and at the same time, the first clamping module 21 is arranged on the guide slide rail 23 and can move on the guide slide rail 23 to adjust the distance between the first clamping module 21 and the second clamping module 22; the second clamping module 22 is also provided with a clamping handle 200 for clamping another part of the workpiece, and the second clamping module 22 is symmetrically arranged with the first clamping module 21 on the operation base 1, and the first clamping module 21 and the second clamping module 22 are close to each other to clamp the workpiece from both sides of the workpiece; the guide slide rail 23 provides a path and a guide for the movement of the first clamping module 21 and the second clamping module 22, and realizes the accuracy of the first clamping module 21 and the second clamping module 22 during movement, so that the two clamping units can adjust the distance between them, thereby realizing the clamping of workpieces of different sizes; the first clamping module 21 and the second clamping module 22 can move on the guide slide rail 23, which makes the clamping assembly 2 can adjust the distance between the two clamping units according to the size of the workpiece, whether it is a small workpiece or a large workpiece, the position of the clamping unit can be adjusted to make the clamping handle 200 accurately align with the corresponding part of the workpiece, and stable clamping is realized, which improves the adaptability and versatility of the device to workpieces of different sizes, and the first clamping module 21 and the second clamping module 22 are symmetrically arranged, which can make the clamping force evenly distributed on both sides of the workpiece when clamping the workpiece, effectively avoiding the situation that the workpiece is inclined or deformed due to uneven clamping force.

[0078] In some specific embodiments, as shown in the drawings, Figure 2 As shown, the first clamping module 21 and the second clamping module 22 each comprise a support 201 and a guide sliding block 202, the clamping handle 200 is arranged on the support 201, the support 201 is arranged on the guide sliding block 202, and the guide sliding block 202 is arranged on the guide slide rail 23 to move on the guide slide rail 23.

[0079] On this basis, the guide sliding block 202 is provided with a first sliding groove 2021, and the first sliding groove 2021 is matched with the guide slide rail 23; the first sliding groove 2021 is used to cooperate with the guide slide rail 23, and its shape and size are processed according to the shape and size of the guide slide rail 23, and the cross-sectional shape of the first sliding groove 2021 is rectangular or dovetail-shaped, for example.

[0080] In some specific embodiments, as shown in Figure 2 The rotating assembly 4 is arranged on the first clamping module 21 or the second clamping module 22 to drive the first clamping module 21 or the second clamping module 22 to rotate.

[0081] In some specific embodiments, as shown in Figure 2 The accommodating area 11 is arranged in the operation base 1, and the clamping assembly 3 is arranged in the accommodating area 11.

[0082] The accommodating area 11 provides a special installation space for the clamping assembly 3, avoiding direct exposure of the clamping assembly 3 on the surface of the operation base 1, thereby saving the available space on the surface of the operation base 1 and enabling the operation base 1 to be more compactly arranged with other components.

[0083] In some specific embodiments, as shown in Figure 3 The clamping assembly 3 includes a first motor 31, a driving gear 32, a forward meshing rack 33, and a reverse meshing rack 34. The first motor 31 is embedded in the accommodating area 11. The driving gear 32 is sleeved on the output shaft of the first motor 31. The forward meshing rack 33 and the reverse meshing rack 34 are respectively meshed on both sides of the driving gear 32. The forward meshing rack 33 and the reverse meshing rack 34 are respectively connected to both sides of the clamped workpiece 2.

[0084] The first motor 31 is the power source of the entire clamping assembly 3. Through the rotation movement of the first motor 31, power is output to drive the driving gear 32 to rotate. The forward meshing rack 33 and the reverse meshing rack 34 are respectively meshed on both sides of the driving gear 32, and the rotation movement of the driving gear 32 is converted into the linear movement of the forward meshing rack 33 and the reverse meshing rack 34. The movement directions of the forward meshing rack 33 and the reverse meshing rack 34 are opposite, thereby realizing the clamping and separation of the clamped workpiece 2.

[0085] In some specific embodiments, as shown in Figure 3 The operation base 1 is provided with a connecting channel 12 extending from the tabletop of the operation base 1 to the accommodating area 11.

[0086] The connecting channel 12 facilitates the installation of components. The transmission components of the clamping assembly 3 can be installed in the accommodating area 11 through the connecting channel 12 and connected to the execution components on the tabletop of the operation base 1.

[0087] In some specific embodiments, as shown in Figure 3As shown, the clamping assembly 3 further comprises a translation block 35, which is arranged in the connecting channel 12, one end of the translation block 35 is connected to the clamping assembly 2, and the other end of the translation block 35 is connected to the forward meshing rack 33 or the reverse meshing rack 34; the translation block 35 serves as an intermediate connecting piece, and can transmit the linear motion of the forward meshing rack 33 or the reverse meshing rack 34 to the clamping assembly 2.

[0088] In some specific embodiments, as shown in Figure 1 As shown, the processing member 6 is arranged on the operation base 1 and can move on the operation base 1; the processing member 6 is a component for directly performing a processing operation on a workpiece placed on the operation base 1, and can have multiple processing functions, for example, when equipped with a cutting tool, it can perform turning, milling, drilling and other cutting processes on workpieces made of metal, plastic and the like, to change the shape and size of the workpiece; if a polishing head is installed, it can polish the surface of the workpiece to improve the surface finish; and a welding device can also be configured to achieve the welding connection of the workpiece.

[0089] In some specific embodiments, as shown in Figure 4 As shown, the clamping handle 200 comprises a linkage rod 2001, a supporting chassis 2002, a buffer pad 2003 and a support column group, the supporting chassis 2002 is fixedly arranged on the linkage rod 2001, the buffer pad 2003 is arranged on the supporting chassis 2002, and the support column group is embedded on the buffer pad 2003 and fixed on the supporting chassis 2002, the clamped workpiece abuts against the support column group and the buffer pad 2003, the buffer pad 2003 is made of flexible material such as TPU, and the support column group is used to provide rigid support.

[0090] The linkage rod 2001 is a component for connecting the clamping handle 200 with other mechanical structures, and plays a role in positioning and fixing.

[0091] The supporting chassis 2002 is used to provide rigid support for the entire clamping handle 200, to bear the weight of the workpiece and various forces generated during the processing, to ensure that the clamping handle 200 will not deform under stress, and to ensure the clamping stability and processing accuracy of the workpiece.

[0092] The buffer pad 2003 is made of flexible material such as TPU, and has the performance of buffering and shock absorption. During processing, when the tool contacts the workpiece and generates impact force, the buffer pad 2003 can absorb part of the impact energy, reduce the damage of the impact force to the workpiece and the clamping handle 200, reduce the processing error of the workpiece due to vibration, and improve the processing surface quality.

[0093] The support column group is embedded in the buffer pad 2003, providing rigid support for the workpiece. When the workpiece is placed on the clamping handle 200, these rigid support points can determine the specific position of the workpiece, providing a basic positioning for subsequent precise machining. During machining, various forces may be generated by the interaction of the tool and the workpiece, which can cause the workpiece position to shift. The rigid support of the support column group can resist these external forces and maintain the stability of the workpiece position.

[0094] For irregularly shaped workpieces, the flexibility of the buffer pad 2003 allows it to conform to the curves and contours of the workpiece surface, providing uniform support force distribution. The support column group provides rigid support at key points, ensuring that the workpiece maintains a stable posture overall and preventing deformation of the part due to gravity or machining forces.

[0095] During workpiece machining, vibrations can affect machining quality, leading to increased workpiece surface roughness, reduced dimensional accuracy, and other issues. The flexibility of the buffer pad 2003 has good shock absorption performance, capable of absorbing and dissipating part of the vibration energy, reducing the transmission of vibration to the workpiece. The rigid support of the support column group limits the excessive vibration amplitude of the workpiece, allowing it to be machined within an acceptable vibration range. For example, during high-speed cutting, the high-speed friction between the tool and the workpiece generates strong vibrations. The combination of the buffer pad 2003 and the support column group can effectively buffer and limit vibrations, improving the quality of the machined surface.

[0096] The technical solution in this embodiment is particularly suitable for the machining of thin-walled workpieces. When machining thin-walled parts with a wall thickness < 2 mm (such as mobile phone frames and medical devices), the workpiece is less rigid and prone to deformation or flutter due to vibration. The buffer pad 2003 can evenly distribute clamping force, avoiding thin-walled deformation caused by local stress concentration. At the same time, the support column group provides multi-point rigid support, enhancing the overall stiffness of the thin-walled part and suppressing flutter.

[0097] In some specific embodiments, as shown in Figure 4 A first through-hole 2004 is provided on the buffer pad 2003 to accommodate the embedding of the support column group. The first through-hole 2004 provides an accurate mounting position for the support column group, ensuring that the support column group can be accurately embedded in the buffer pad 2003.

[0098] In some specific embodiments, as shown in Figure 4 A second through-hole 2005 is provided on the buffer pad 2003, and the second through-hole 2005 is located between adjacent first through-holes 2004.

[0099] In the embodiment, the main function of the buffer pad 2003 is to absorb and consume the vibration energy generated in the machining process, and the second through hole 2005 can change the propagation path and mode of the vibration in the buffer pad 2003. When the vibration wave propagates to the second through hole 2005, reflection, refraction and scattering phenomena occur, thereby consuming more vibration energy and reducing the transmission of vibration to the workpiece. Compared with the pad without the second through hole 2005, the buffer pad 2003 with the second through hole 2005 can more effectively reduce the vibration amplitude and improve the quality of the machined surface.

[0100] In some specific embodiments, as shown in Figure 5 The support column group includes column group members 2006 and connecting ribs 2007 connecting the column group members 2006 into one body; the column group members 2006 can be arranged in a regular array, for example, in a ring array, one end of the column group members 2006 is fixed on the supporting chassis 2002, and the other end of the column group members 2006 extends out of the first through hole 2004 to hold the workpiece together with the buffer pad 2003, and the connecting ribs 2007 are connected to the middle part of the column group members 2006.

[0101] The column group members 2006 are fixed on the supporting chassis 2002, one end of which extends out of the first through hole 2004 to hold the workpiece together with the buffer pad 2003, and when the workpiece is placed in the clamping handle 200, the column group members 2006 can bear part of the weight of the workpiece and provide rigid support for the workpiece; the connecting ribs 2007 are connected to the middle part of the column group members 2006 to connect each independent column group member 2006 into one body, thereby improving the overall rigidity. Exemplarily, the connecting ribs 2007 can be made of stainless steel and have a tubular or columnar shape. The rigid support of the column group members 2006 and the reinforcing effect of the connecting ribs 2007 combine to make the support column group provide more stable and reliable support for the workpiece.

[0102] In some specific embodiments, as shown in Figure 6 The clamping handle 200 further includes a first lifting mechanism 2008 arranged between the supporting chassis 2002 and the buffer pad 2003 to adjust the distance between the supporting chassis 2002 and the buffer pad 2003, so that the relative distance between the column group members 2006 and the buffer pad 2003 is adjusted.

[0103] The first lifting mechanism 2008 changes the distance between the supporting base 2002 and the buffer pad 2003 through its extension, retraction, or movement, thereby adjusting the relative distance between the column assembly 2006 and the buffer pad 2003 to meet the support height requirements of different workpieces. The existence of the first lifting mechanism 2008 allows the clamping handle 200 to adapt to workpieces of different heights and shapes. For workpieces with large height differences, the height of the buffer pad 2003 can be changed by adjusting the first lifting mechanism 2008, so that the relative distance between the column assembly 2006 and the buffer pad 2003 meets the support requirements of the workpiece. There is no need to replace clamping devices of different specifications, which improves the versatility and flexibility of the equipment.

[0104] Specifically, the first lifting mechanism 2008 can adjust the relative distance between the column assembly 2006 and the buffer pad 2003 by driving the lead screw with a servo motor.

[0105] As an improvement, such as Figure 7 As shown, the first lifting mechanism 2008 includes multiple lifting units to adjust the relative distance between the column assembly 2006 and the buffer pad 2003 at different positions on the clamping handle 200. The lifting unit includes a third motor 2009, a lead screw unit, and a lifting plate 2010. The third motor 2009 and the lead screw unit are both fixed on the supporting base frame 2002. The third motor 2009 is connected to the lifting plate 2010 through the lead screw unit, and the lifting plate 2010 is connected to the buffer pad 2003.

[0106] The rotary motion is converted into linear motion of the lifting plate 2010 via the third motor 2009 and the lead screw unit. The lifting plate 2010 accurately transmits the linear motion and force from the lead screw unit to the buffer pad 2003, enabling the buffer pad 2003 to rise and fall according to the set requirements. Multiple lifting units can independently adjust the height of the buffer pad 2003 at different positions, adapting to workpieces of various complex shapes. For example, for workpieces with curved surfaces or irregular structures, each lifting unit can be adjusted according to its surface contour to ensure that the buffer pad 2003 fits tightly against the workpiece surface, providing uniform and effective support and preventing deformation or vibration of the workpiece during processing due to insufficient local support.

[0107] like Figure 8 As shown, the fixing device for multi-angle machining also includes a positioning component 5, which is embedded in the support 201 to lock or unlock the rotation of the clamping handle 200, and the positioning component 5 and the rotating component 4 are located on different supports 201 respectively.

[0108] When stable multi-faceted machining of the clamping shank 200 is required, the positioning component 5 is embedded in the support 201 and can lock the clamping shank 200 to prevent it from rotating during machining due to cutting forces, vibrations, and other factors. When it is necessary to change the angle of the clamping shank 200, that is, to rotate the clamping shank 200 to machine the workpiece at different angles, the positioning component 5 can be unlocked to release the restriction on the rotation of the clamping shank 200, so that the clamping shank 200 can rotate to the designated position under the action of the rotating component 4, thereby realizing multi-angle machining of the workpiece. The positioning component 5 can lock the clamping shank 200 and effectively prevent the accidental rotation of the clamping shank 200 during machining, ensuring the stability of the workpiece position during machining.

[0109] Specifically, the positioning component 5 includes a rotating shaft 51, a follower disk 52, a positioning hole 53, and a positioning post 54. The positioning hole 53 is formed around the follower disk 52. The follower disk 52 is fixedly sleeved on the rotating shaft 51. The rotating shaft 51 is connected to the clamping handle 200. Both the rotating shaft 51 and the follower disk 52 are rotatably disposed in the support 201. The positioning post 54 can be inserted into the positioning hole 53 to lock the rotating shaft 51.

[0110] One end of the rotating shaft 51 is connected to the clamping handle 200, and the other end is fixedly sleeved on the follower disk 52. It transmits the rotation or stationary state of the clamping handle 200 to the follower disk 52, and simultaneously feeds back the force from the positioning component to the clamping handle 200, thus achieving linkage between the rotation and locking of the clamping handle 200. The follower disk 52 is fixedly sleeved on the rotating shaft 51, providing a fixed opening position for the positioning hole 53. The positioning hole 53 is formed around the follower disk 52, providing an insertion point for the positioning pin 54. When it is necessary to lock the clamping handle 200, the positioning pin 54 is inserted into the positioning hole 53. Through the tight cooperation with the follower plate 52, the rotation of the follower plate 52 and the rotating shaft 51 is prevented, thereby locking the clamping handle 200. When it is necessary to lock the clamping handle 200, the positioning pin 54 is inserted into the corresponding positioning hole 53. Through the friction or mechanical engagement between the positioning pin 54 and the positioning hole 53, the rotation of the follower plate 52 and the rotating shaft 51 is prevented, thereby locking the clamping handle 200.

[0111] Example 4

[0112] Embodiment 4 of the present invention is a further improvement based on Embodiment 3, such as... Figure 9 As shown, the column assembly 2006 includes a component sleeve 0061 and an extension rod 0062. The extension rod 0062 is disposed inside the component sleeve 0061 and can move within the component sleeve 0061.

[0113] The component sleeve 0061 provides a running space for the extension rod 0062, limits the movement direction of the extension rod 0062, so that it can only move along the inner wall of the sleeve, avoiding the extension rod 0062 from deviating or shaking during movement; the extension rod 0062 is a component that directly generates the thrust force in the column group component, which can move in the component sleeve 0061, and through the contact of its front end with the workpiece or other objects, the thrust force is transmitted, realizing the clamping, positioning or pushing of the workpiece, etc. The column group component can accurately position the workpiece at the required position through the movement of the extension rod 0062 in the component sleeve 0061, thus the column group component can adapt to workpieces of different shapes, sizes and weights, which makes the clamping groove 200 have wider applicability and reduces the frequency of adjusting the clamp due to the replacement of the workpiece.

[0114] On this basis, as shown in Figure 10 The clamping groove 200 also includes a second lifting mechanism 0011, the second lifting mechanism 0011 includes a rotating piece 0012, a movable block 0013, a movable groove 0014, a moving rod 0015 and a bracket 0016, the rotating piece 0012 is arranged on the bracket 0016 and can rotate on the bracket 0016, the movable block 0013 is arranged on the rotating piece 0012 and can move position on the rotating piece 0012, the movable groove 0014 is sleeved outside the movable block 0013, and the movable groove 0014 is fixedly arranged on the moving rod 0015, the moving rod 0015 is penetrated through the bracket 0016 and can move on the bracket 0016, and the extension rod 0062 is connected to the moving rod 0015.

[0115] The rotating blade 0012 is connected with an external power source (such as a motor) to introduce rotating power into the inside of the assembly. The movable block 0013 is arranged on the rotating blade 0012 and rotates with the rotating blade 0012. At the same time, the movable block 0013 can also move on the rotating blade 0012 to change the distance of the movable block 0013 relative to the center of the rotating blade 0012. By changing the distance, the size and direction of the force generated by the movable block 0013 when rotating with the rotating blade 0012 can be adjusted, so as to realize the conversion of the rotating motion of the rotating blade into the linear motion of the movable groove 0014. When the movable block 0013 rotates with the rotating blade 0012, it will slide in the movable groove 0014. Since the movable groove 0014 is fixed on the moving rod 0015 and cannot rotate with the movable block 0013, the circular motion of the movable block 0013 is converted into the linear motion of the movable groove 0014 and the moving rod 0015. The moving rod 0015 is arranged on the support 0016 and can move on the support 0016. The moving rod 0015 directly bears the force transmitted by the movable groove 0014 and drives the extension rod 0062 to move linearly, so as to realize the jacking or resetting of the extension rod 0062. The support 0016 provides a support and mounting base for the rotating blade 0012 and the moving rod 0015, fixes the rotating blade 0012 so that the rotating blade 0012 can rotate, and at the same time limits the movement range of the moving rod 0015 so that the moving rod 0015 can only move in the track set on the support 0016, thereby ensuring the structural stability and movement accuracy of the second lifting mechanism. In summary, by adjusting the rotating speed of the rotating blade 0012, the position of the movable block 0013 on the rotating blade, and the initial position of the moving rod 0015, the clamping position of the extension rod 0062 can be accurately controlled.

[0116] As an improvement, as shown in Figure 10 , the moving rod 0015 can be connected with multiple extension rods 0062 to drive multiple extension rods 0062 to perform clamping actions. By driving multiple extension rods 0062 simultaneously through the moving rod 0015, clamping force can be applied to the workpiece from multiple directions, making the clamping force more balanced. For complex and irregular workpieces, multiple-point clamping can be performed according to the geometric characteristics of the workpiece, and extension rods 0062 can be arranged at key positions to accurately clamp different sizes or types of workpieces.

[0117] As another improvement, as shown in Figure 10 , the moving rod 0015 is connected to the extension rod 0062 through a ball hinge rod 0017. The ball hinge rod 0017 includes a rod body 0018 and two ball heads 0019 fixedly arranged at both ends of the rod body 0018. The two ball heads 0019 are respectively located in a first ball sleeve 0020 fixedly arranged on the moving rod 0015 and a second ball sleeve 0021 fixedly arranged on the extension rod 0062.

[0118] The rod body 0018 of the spherical hinge rod 0017 is connected with the ball heads 0019 at both ends, the ball heads 0019 can rotate in multiple directions in the first ball sleeve 0020 and the second ball sleeve 0021, thereby the spherical hinge rod 0017 can transmit force and movement in different directions, when the linear motion direction of the moving rod 0015 is inconsistent with the required action direction of the extension rod, the spherical hinge rod can automatically adjust the angle, accurately transmit the power of the moving rod to the extension rod, realize flexible conversion of the movement direction, due to the flexible rotation characteristics of the spherical hinge rod 0017, the extension rod 0062 can clamp the workpiece at multiple angles, for irregular-shaped workpieces, such as special-shaped parts, curved-surface workpieces, etc., the extension rod 0062 can automatically adjust the angle according to the surface shape of the workpiece, realize close-fitting clamping, improve the stability and reliability of clamping.

[0119] Those skilled in the art will understand that the above-mentioned embodiments are only for clearly illustrating the present application, and are not intended to limit the scope of the present application. Other changes or modifications can be made on the basis of the above disclosure, and these changes or modifications are still within the scope of the present application.

Claims

1. A method for multi-angle continuous machining of a workpiece, characterized in that, include: S1, The clamping assembly controls the relative movement of the clamping assembly on the guide slide rail to clamp and fix the workpiece; S2, the rotating component drives the clamping component and the workpiece to rotate to a predetermined angle; S3, after the workpiece rotates to a predetermined angle, the processing component processes the workpiece; the workpiece continues to rotate, realizing continuous processing of the workpiece from multiple angles.

2. The multi-angle continuous machining method for a workpiece according to claim 1, characterized in that, S1 includes: S1.1, Start the clamping assembly and drive the gear teeth to rotate; S1.2, the drive gear teeth drive the two racks to move synchronously in opposite directions within the accommodating area; S1.3, the linear motion is transmitted to the clamping assembly through the translation block connected to the rack, so that the first clamping module and the second clamping module move toward each other to clamp the workpiece.

3. The multi-angle continuous machining method for a workpiece according to claim 1, characterized in that, S2 include: S2.1, Start the rotating assembly to drive the clamping assembly on one side to rotate; S2.1, the clamping assembly on one side drives the clamping assembly on the other side to rotate, thereby realizing the rotation of the workpiece.

4. The multi-angle continuous machining method for a workpiece according to claim 2, characterized in that, In S1.2, the clamping assembly rotates at a first speed, bringing the first clamping module and the second clamping module close to the workpiece; before contacting the workpiece, it switches to a second speed to rotate so that the first clamping module and the second clamping module clamp the workpiece, wherein the second speed is less than the first speed.

5. The multi-angle continuous machining method for a workpiece according to claim 2, characterized in that, In S1.3, the current value of the clamping component is monitored in real time. When the current value reaches the preset threshold, it is determined that the workpiece has been contacted and the movement is stopped, thus completing the clamping.

6. The multi-angle continuous machining method for a workpiece according to claim 1, characterized in that, In S2, the rotating component drives the clamping component and the workpiece to perform indexing rotation.

7. The multi-angle continuous machining method for a workpiece according to claim 1, characterized in that, In S2, at a predetermined angle, the clamping assembly is mechanically locked after rotation by the positioning component.

8. The multi-angle continuous machining method for a workpiece according to claim 7, characterized in that, Mechanical locking includes: inserting a positioning pin into the corresponding positioning hole of the follower plate fixedly sleeved on the rotating shaft, thereby restricting the rotation of the rotating shaft and the clamping handle through the cooperation between the positioning pin and the positioning hole.

9. The multi-angle continuous machining method for a workpiece according to claim 1, characterized in that, S3 also includes spraying airflow or cleaning fluid onto the surfaces and clamping areas that have been machined and / or are being machined to remove chips and coolant residue.

10. A fixing device for multi-angle machining, used to perform the method according to any one of claims 1-9, characterized in that, It includes an operating base, on which a clamping assembly, a holding assembly, and a rotating assembly are mounted; the holding assembly is connected to the clamping assembly to move the clamping assembly, and the rotating assembly is connected to the clamping assembly to rotate the clamping assembly.

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