A CNC dual four-axis machining jig and machining method

Abstract

The application provides a CNC double four-axis machining jig and a machining method. The CNC double four-axis machining jig comprises a base, a main four-axis jig and an auxiliary four-axis jig. The base is fixed on a workbench to provide support and stability. The main four-axis jig and the auxiliary four-axis jig are respectively arranged on the base to clamp different ends of a workpiece. The main four-axis jig comprises a main stand, a main support, a main motor and a main clamping assembly. A main cylinder drives a main pressing rod to clamp one end of the workpiece, and a torsional spring is used for resetting. The auxiliary four-axis jig comprises an auxiliary stand, an auxiliary support, an auxiliary motor and an auxiliary clamping assembly. An auxiliary cylinder drives an auxiliary pressing block to clamp the other end of the workpiece. Through mutual torsion of the main motor and the auxiliary motor, the workpiece can be transferred from the main four-axis jig to the auxiliary four-axis jig, and the auxiliary clamping assembly cooperates to clamp the other end of the workpiece. A manipulator cooperates with a blowing and sucking device to continuously blow and clean the settlement surface of the workpiece, so that the cleaning effect of the surface of the workpiece is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of CNC jigs and CNC machining, in particular to a CNC double four-axis machining jig and a machining method. BACKGROUND

[0002] In modern industrial production, many products need multiple CNC processes to complete machining in the production process. Traditional machining methods usually rely on manual material taking and placing. This method is inefficient and difficult to meet the needs of high-efficiency production.

[0003] The traditional machining method has the following problems: manual material taking and placing takes a long time, and multiple pieces of material cannot be taken and placed at the same time, resulting in low production efficiency. During the manual material taking and placing process, the products rub against each other and collide, which easily causes surface damage to the products, affecting the stability of the workpieces and the machining quality. SUMMARY

[0004] In view of the above technical deficiencies, the purpose of the present application is to provide a CNC double four-axis machining jig and a machining method, which can complete multiple processes and reduce manual intervention during machining, improve production efficiency while ensuring the surface quality of the workpieces.

[0005] To achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0006] A CNC double four-axis machining jig, comprising:

[0007] a base provided with a workbench;

[0008] a main four-axis jig comprising a main stand, a main support, a main motor and a main clamping assembly; the main stand is fixed on the base; the main support is rotatably installed on the main stand; the main motor is fixed on the main stand, and the output shaft of the main motor is connected with the main support; the main clamping assembly is installed on the main support and used for clamping one end of a workpiece;

[0009] an auxiliary four-axis jig comprising an auxiliary stand, an auxiliary support, an auxiliary motor and an auxiliary clamping assembly; the auxiliary stand is fixed on the base and arranged in parallel and spaced apart with the main stand; the auxiliary support is rotatably installed on the auxiliary stand; the auxiliary motor is fixed on the auxiliary stand, and the output shaft of the auxiliary motor is connected with the auxiliary support; the auxiliary clamping assembly is installed on the auxiliary support and used for clamping the other end of the workpiece.

[0010] Preferably, the main clamping assembly comprises a main pressing plate, a main support shaft, a main electric cylinder, a main pressing rod and a main pressing block; the main support shaft is rotatably installed on the main support frame; a torsion spring is installed on the main support shaft, one end of the torsion spring being fixedly connected with the main support frame; the main pressing plate is fixed on the main support shaft; the main pressing block is fixed on the main pressing plate close to one end of the auxiliary vertical frame; the main electric cylinder is fixed on the main support frame, the piston rod of the main electric cylinder being arranged towards the main pressing plate; and the main pressing rod is vertically fixed on the piston rod of the main electric cylinder.

[0011] Preferably, the auxiliary clamping assembly comprises a support rod, an auxiliary electric cylinder, a vertical column, a pull rod and an auxiliary pressing block; the support rod is fixed on the auxiliary support frame; the auxiliary electric cylinder and the vertical column are fixed on the support rod; the upper end of the pull rod is hingedly connected with the auxiliary pressing block, and the lower end of the pull rod is hingedly connected with the vertical column; the piston rod of the auxiliary electric cylinder is hingedly connected with the auxiliary pressing block.

[0012] Preferably, a plurality of main clamping assemblies are arranged.

[0013] Preferably, a plurality of auxiliary pressing blocks are arranged, and the auxiliary pressing blocks are arranged in an array along the length direction of the support rod; and a plurality of auxiliary electric cylinders, vertical columns and pull rods are arranged corresponding to the auxiliary pressing blocks.

[0014] Preferably, a plurality of material receiving baskets are arranged on the workbench; and the material receiving baskets are arranged below the auxiliary support frame.

[0015] A CNC double four-axis machining method comprises the following steps:

[0016] S1, clamping and fixing a workpiece by a main clamping assembly of a main four-axis jig; and machining a first process structure surface of the workpiece;

[0017] S2, rotating an auxiliary clamping assembly of an auxiliary four-axis jig to a 90-degree horizontal plane position;

[0018] S3, rotating the main clamping assembly of the main four-axis jig to a -90-degree horizontal plane position, and abutting and clamping the workpiece to the auxiliary clamping assembly;

[0019] S4, mutually twisting the main clamping assembly and the auxiliary clamping assembly, and transferring the workpiece from the main clamping assembly to the auxiliary clamping assembly;

[0020] S5, rotating the auxiliary clamping assembly of the auxiliary four-axis jig to a 0-degree position, and machining a second process structure surface of the workpiece;

[0021] S6, rotating the auxiliary clamping assembly of the auxiliary four-axis jig to a 180-degree position to release the workpiece, and completing the machining.

[0022] Compared with the prior art, the CNC double four-axis machining method has the following beneficial effects:

[0023] Improve product processing efficiency, reduce artificial taking and placing material process machine downtime waiting time; After the combination process, the material turnover / cleaning process is saved; Avoid manual participation in taking and placing materials, effectively reduce product three injuries and other appearance defects, improve product yield. Through the rotation of the main support and auxiliary support and the configuration of multiple clamping components, the workpiece space is fully utilized, the space utilization rate of the jig is improved, and the equipment floor area is reduced. The design of multiple clamping points and auxiliary clamping components enables the jig to adapt to workpieces of different sizes and shapes, further expanding its application range. Through the cooperative work of the main four-axis jig and the auxiliary four-axis jig, the stability and reliability of the workpiece clamping are enhanced, and the problem of unstable cleaning effect caused by insecure clamping is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present application;

[0025] Figure 2 It is a sectional structural schematic diagram of the present application;

[0026] Figure 3 It is Figure 2 the local enlarged view at A in the middle.

[0027] Among them:

[0028] 1, main stand; 2, main motor; 3, auxiliary motor; 4, auxiliary stand; 5, base; 6, material receiving basket; 7, workbench surface; 8, auxiliary pressing block; 9, support rod; 10, auxiliary support; 11, main support; 12, main electric cylinder; 13, main pressing plate; 14, main pressing block; 15, auxiliary electric cylinder; 16, stand column; 17, main pressing rod; 18, main support shaft; 19, pull rod. DETAILED DESCRIPTION

[0029] The present application will be further described below in conjunction with the drawings.

[0030] As Figures 1 to 3 shown, a CNC double four-axis machining jig, comprising:

[0031] The base 5 is provided with a workbench surface 7; the base 5 is the base structure of the whole jig, providing stability and support to ensure that the jig can carry the workpiece for clamping and cleaning operation. The workbench surface 7 as the support area of the workpiece is fixed on the base 5 to ensure that the workpiece can be placed stably for clamping component operation;

[0032] The main four-axis jig comprises a main stand 1, a main support 11, a main motor 2 and a main clamping assembly. The main stand 1 is fixed on the base 5, provides structural support for the main clamping assembly, and ensures that the whole unit can be stably installed and operated. The main support 11 is rotatably installed on the main stand 1, so that the main clamping assembly can be rotated to adjust the angle. The main motor 2 is fixed on the main stand 1, and the output shaft of the main motor 2 is connected with the main support 11. The main clamping assembly is installed on the main support 11, and is used for clamping one end of the workpiece.

[0033] The auxiliary four-axis jig comprises an auxiliary stand 4, an auxiliary support 10, an auxiliary motor 3 and an auxiliary clamping assembly. The auxiliary stand 4 is fixed on the base 5 and is arranged in parallel with the main stand 1, which optimizes the stability and position adjustment of the workpiece clamping, provides support and ensures parallel arrangement with the main four-axis jig. The auxiliary support 10 is rotatably installed on the auxiliary stand 4. The auxiliary motor 3 is fixed on the auxiliary stand 4, and the output shaft of the auxiliary motor 3 is connected with the auxiliary support 10. The auxiliary clamping assembly is installed on the auxiliary support 10, and is used for clamping the other end of the workpiece.

[0034] Further, the main clamping assembly comprises a main pressing plate 13, a main support shaft 18, a main electric cylinder 12, a main pressing rod 17 and a main pressing block 14. The main support shaft 18 is rotatably installed on the main support 11. A torsional spring is installed on the main support shaft 18, one end of the torsional spring is fixedly connected with the main support 11, and the torsional spring provides a reset force during clamping to ensure that the clamping assembly can maintain a stable state and resist the influence of the weight of the workpiece. The main pressing plate 13 is fixed on the main support shaft 18, which ensures that the main pressing plate 13 can rotate with the support shaft. The main pressing block 14 is fixed on the main pressing plate 13 at one end close to the auxiliary stand 4, to ensure that the other end of the clamped workpiece. The main electric cylinder 12 is fixed on the main support 11, and the piston rod of the main electric cylinder 12 is arranged towards the main pressing plate 13. The main pressing rod 17 is vertically fixed on the piston rod of the main electric cylinder 12, and is used for controlling the clamping force of the main pressing block 14.

[0035] Further, the auxiliary clamping assembly comprises a support rod 9, an auxiliary electric cylinder 15, a column 16, a pull rod 19 and an auxiliary pressing block 8. The support rod 9 is fixed on the auxiliary support 10. The auxiliary electric cylinder 15 and the column 16 are fixed on the support rod 9. The upper end of the pull rod 19 is hingedly connected with the auxiliary pressing block 8, and the lower end is hingedly connected with the column 16. The piston rod of the auxiliary electric cylinder 15 is hingedly connected with the auxiliary pressing block 8.

[0036] Further, the main clamping assembly is configured with multiple main clamping assemblies. The multiple main clamping assemblies are arranged in an array along the length direction of the main support 11.

[0037] Further, the auxiliary pressing block 8 is configured with multiple auxiliary pressing blocks 8, and the multiple auxiliary pressing blocks 8 are arranged in an array along the length direction of the support rod 9. The auxiliary electric cylinder 15, the column 16 and the pull rod 19 are configured with multiple auxiliary pressing blocks 8.

[0038] Further, a plurality of material receiving baskets 6 are arranged on the workbench 7; the material receiving baskets 6 are arranged below the auxiliary support 10, facilitating the collection and discharge of the workpieces and optimizing the operation process of the cleaning product deposition surface.

[0039] A CNC double four-axis machining method, comprising the following steps:

[0040] S1, clamping and fixing the workpiece through the main clamping assembly of the main four-axis jig; processing the first process structure surface of the workpiece;

[0041] S2, rotating the auxiliary clamping assembly of the auxiliary four-axis jig to a 90-degree horizontal plane position;

[0042] S3, rotating the main clamping assembly of the main four-axis jig to a -90-degree horizontal plane position, and abutting and clamping the workpiece to the auxiliary clamping assembly;

[0043] S4, mutually twisting the main clamping assembly and the auxiliary clamping assembly, and transferring the workpiece from the main clamping assembly to the auxiliary clamping assembly;

[0044] S5, rotating the auxiliary clamping assembly of the auxiliary four-axis jig to a 0-degree position, and processing the second process structure surface of the workpiece;

[0045] S6, rotating the auxiliary clamping assembly of the auxiliary four-axis jig to a 180-degree position to release the workpiece, and completing the machining.

[0046] In use, the piston rod of the main electric cylinder 12 is extended, the main pressure rod 17 is pressed on the main pressure plate 13, the main pressure plate 13 is rotated around the axis of the main support shaft 18 as the center, the end of the main pressure plate 13 close to the auxiliary stand 4 is opened, the material is placed in the opened main pressure plate 13, the piston rod of the main electric cylinder 12 is retracted, the main pressure plate 13 is reset under the action of the torsion spring, the main pressure block 14 tightly presses the material on the main support 11, the mechanical hand drives the air blower to blow air above the material deposition surface to clean the deposition surface; then the main motor 2 is started to drive the main support 11 to rotate, the auxiliary motor 3 is started to drive the auxiliary support 10 to rotate, the piston rod of the auxiliary electric cylinder 15 is pulled back to open the end of the auxiliary pressure block 8 close to the main support 11, with the rotation of the main support 11 and the auxiliary support 10, the other end of the material is rotated to the position between the auxiliary pressure block 8 and the support rod 9, the piston rod of the auxiliary electric cylinder 15 is extended to tightly press the other end of the material on the support rod 9 by the auxiliary pressure block 8, the main pressure block 14 releases the material, the auxiliary motor 3 continues to rotate, the mechanical hand drives the air blower to continuously blow air for cleaning, the material moves above the material receiving basket 6, the auxiliary pressure block 8 releases the material, the material falls into the material receiving basket 6, and the machining is completed.

[0047] Working principle is summarized as follows:

[0048] The jig completes the clamping and cleaning operation of the workpiece through the cooperative work of the main four-axis jig and the auxiliary four-axis jig. The piston rod of the main electric cylinder 12 pushes the main pressing rod 17 to press the main pressing plate 13, so that the main pressing plate 13 rotates to clamp one end of the workpiece. The auxiliary clamping assembly is used to clamp the other end of the workpiece, so as to ensure that the workpiece remains stable during clamping. The manipulator and the blower and suction device cooperate to ensure the cleaning effect on the settling surface of the workpiece.

[0049] Working principle of the main clamping assembly:

[0050] The piston rod of the main electric cylinder 12 extends and pushes the main pressing rod 17, so that the main pressing plate 13 rotates around the main support shaft 18.

[0051] The main pressing plate 13 clamps one end of the workpiece with the main support shaft 18 as the rotation center, and opens at the end close to the auxiliary stand 4 to form a clamping space.

[0052] The torsion spring provides a restoring force during clamping to ensure that the main pressing plate 13 can return to the initial state after clamping is completed, locking one end of the workpiece.

[0053] The workpiece is located in the main pressing plate 13, and the blower and suction device driven by the manipulator blows air to clean the settling surface.

[0054] Working principle of the auxiliary clamping assembly:

[0055] The piston rod of the auxiliary electric cylinder 15 retracts, so that the auxiliary pressing block 8 opens to the side of the main support 11, allowing the workpiece to rotate to the position between the auxiliary pressing block 8 and the support rod 9.

[0056] With the rotation of the main support 11 and the auxiliary support 10, the other end of the workpiece is positioned between the auxiliary pressing block 8 and the support rod 9.

[0057] The auxiliary pressing block 8 clamps the other end of the workpiece inward to ensure that the workpiece remains stable during the entire clamping process.

[0058] The main pressing block 14 releases one end of the workpiece, so that the auxiliary clamping assembly is responsible for pressing the other end of the workpiece.

[0059] Cleaning process of the manipulator and the blower and suction device:

[0060] During the clamping of the workpiece, the blower and suction device carried by the manipulator continuously blows air to clean the dust or impurities on the settling surface of the workpiece.

[0061] The blowing action ensures the cleaning effect of the surface of the workpiece and optimizes the subsequent processing quality.

[0062] Material movement and handling of the receiving basket 6:

[0063] The main motor 2 and the auxiliary motor 3 respectively drive the main support 11 and the auxiliary support 10 to rotate.

[0064] As the workpiece is transferred from the main support 11 to the position of the auxiliary support 10, the auxiliary pressing block 8 is loosened, and the workpiece slides into the receiving basket 6, completing the clamping and cleaning operations.

[0065] The receiving basket 6 is arranged below the auxiliary support 10 to collect completed workpieces, optimizing the material handling process.

[0066] The role of the multiple clamping assembly configuration:

[0067] The array distribution of the main clamping assembly and the interval arrangement of the auxiliary clamping assembly effectively improve the stability and uniformity of the workpiece clamping.

[0068] Through the synergistic effect of multiple clamping points and assemblies, it ensures that the workpiece can be accurately clamped at different positions, achieving high-efficiency cleaning effect.

Claims

1. A CNC dual four-axis machining fixture, characterized in that, include: The base (5) is provided with a work surface (7); The main four-axis fixture includes a main frame (1), a main support (11), a main motor (2), and a main clamping assembly; the main frame (1) is fixed on the base (5); the main support (11) is rotatably mounted on the main frame (1); the main motor (2) is fixed on the main frame (1), and the output shaft of the main motor (2) is connected to the main support (11); the main clamping assembly is mounted on the main support (11) and is used to clamp one end of the workpiece; the main clamping assembly includes a main pressure plate (13), a main support shaft (18), a main electric cylinder (12), a main pressure rod (17), and a main pressure plate. Block (14); The main support shaft (18) is rotatably mounted on the main support (11); A torsion spring is mounted on the main support shaft (18), and one end of the torsion spring is fixedly connected to the main support (11); The main pressure plate (13) is fixed on the main support shaft (18); The main pressure block (14) is fixed on the main pressure plate (13) at one end near the auxiliary support (4); The main electric cylinder (12) is fixed on the main support (11), and the piston rod of the main electric cylinder (12) is set towards the main pressure plate (13); The main pressure rod (17) is vertically fixed on the piston rod of the main electric cylinder (12); The auxiliary four-axis fixture includes an auxiliary frame (4), an auxiliary support (10), an auxiliary motor (3), and an auxiliary clamping assembly. The auxiliary frame (4) is fixed on the base (5) and is arranged parallel to and spaced apart from the main frame (1). The auxiliary support (10) is rotatably mounted on the auxiliary frame (4). The auxiliary motor (3) is fixed on the auxiliary frame (4), and the output shaft of the auxiliary motor (3) is connected to the auxiliary support (10). The auxiliary clamping assembly is mounted on the auxiliary support (10) and is used for clamping the workpiece. One end is clamped; the auxiliary clamping assembly includes a support rod (9), an auxiliary electric cylinder (15), a column (16), a pull rod (19), and an auxiliary pressure block (8); the support rod (9) is fixed on the auxiliary bracket (10); the auxiliary electric cylinder (15) and the column (16) are fixed on the support rod (9); the upper end of the pull rod (19) is hinged to the auxiliary pressure block (8), and the lower end is hinged to the column (16); the piston rod of the auxiliary electric cylinder (15) is hinged to the auxiliary pressure block (8).

2. The CNC dual four-axis machining fixture as described in claim 1, characterized in that, Multiple main clamping assemblies are configured; the multiple main clamping assemblies are distributed in an array at intervals along the length direction of the main support (11).

3. The CNC dual four-axis machining fixture as described in claim 1, characterized in that, Multiple auxiliary pressure blocks (8) are configured, and the multiple auxiliary pressure blocks (8) are distributed in an array at intervals along the length direction of the support rod (9); the auxiliary electric cylinder (15), the column (16), and the pull rod (19) are configured with multiple auxiliary pressure blocks (8).

4. A CNC dual four-axis machining fixture as described in any one of claims 1 to 3, characterized in that, Multiple receiving baskets (6) are provided on the workbench (7); the receiving baskets (6) are placed below the auxiliary support (10).

5. The machining method of a CNC dual four-axis machining fixture as described in claim 1, characterized in that, Includes the following steps: S1. The workpiece is clamped and fixed by the main clamping assembly of the main four-axis fixture; the first process structural surface of the workpiece is machined. S2. Rotate the auxiliary clamping assembly of the auxiliary four-axis fixture to a 90-degree horizontal position; S3. Rotate the main clamping assembly of the main four-axis fixture to the -90 degree horizontal plane position, and mate the workpiece with the auxiliary clamping assembly and clamp it in place. S4. The main clamping assembly and the auxiliary clamping assembly twist each other, and the workpiece is separated from the main clamping assembly and transferred to the auxiliary clamping assembly. S5. The auxiliary clamping assembly of the auxiliary four-axis fixture is rotated to the 0-degree position to process the second process structural surface of the workpiece. S6. The auxiliary clamping assembly of the auxiliary four-axis fixture rotates to 180 degrees to release the workpiece and complete the machining.

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