Spacing cooperation adjusting device for numerical control gantry milling machine

Abstract

The application belongs to the technical field of milling machines, in particular to a distance cooperation adjusting device for a numerical control gantry milling machine, which comprises a machine tool, a multi-stage telescopic mechanism, a machining table, a machine tool and a machine frame, a multi-axis mobile milling mechanism is movably installed on the machine frame, a distance adjusting mechanism is movably installed on both sides of the machining table, a machining block is placed above the machining table, the machining block is directly below the milling cutter of the multi-axis mobile milling mechanism, after the machining block is moved to the initial milling position by the machining table, the deflection test mechanism performs deflection test, if it is tested that the two sides of the machining block are not in the vertical state, that is, the positioning and conveying are deviated, the abutting clamping block which is always in the vertical state will move close to the corresponding deflection test mechanism direction, the deflection test mechanism after rotation returns to the original vertical state, then through the cooperation of the multi-axis movement of the multi-axis mobile milling mechanism and the displacement of the machining table, the milling cutter of the multi-axis mobile milling mechanism completes the machining of the machining block.

Description

Technical Field

[0001] This invention belongs to the field of milling machines, specifically a spacing adjustment device for a CNC gantry milling machine. Background Technology

[0002] A gantry milling machine is a large CNC machine tool equipped with a gantry frame structure and a horizontal long bed. Its general machining process includes conveying the machining block to the milling machine table, accurately adjusting the spatial position of the milling cutter through a multi-axis linkage system, and then performing milling machining on planes, grooves or complex surfaces to finally complete the high-precision forming and manufacturing of the workpiece.

[0003] A patent document with announcement number CN217529336U discloses a fixed gantry milling machine, including a base plate, a gantry frame and a lifting mechanism. A movable plate is provided on the lifting mechanism, and a milling cutter is provided at the bottom of the movable plate. A spacing adjustment mechanism is provided at the top of the base plate directly below the milling cutter. A tooling fixture is provided at the top of the spacing adjustment mechanism. A second slide groove is opened at the top of the tooling fixture, and a second threaded rod is rotatably installed on the front and rear inner walls of the second slide groove.

[0004] In traditional milling processes, the machining block is first positioned and transported to the machining table of a gantry milling machine, and then machined using a milling cutter. During this process, when the machining block is positioned and transported on the machining table, there may be deviations in the transport position accuracy. Furthermore, the lack of secondary positioning can lead to reduced machining accuracy and the occurrence of defective machining blocks, resulting in reduced milling efficiency.

[0005] Therefore, the present invention provides a spacing adjustment device for CNC gantry milling machines to solve the problems mentioned in the background art. Summary of the Invention

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: A spacing adjustment device for a CNC gantry milling machine, comprising a machine tool and a multi-stage telescopic mechanism and a machining table movably mounted above the machine tool. A frame is mounted above the machine tool, and a multi-axis moving milling mechanism is movably mounted on the frame. Spacing adjustment mechanisms are movably mounted on both sides of the machining table. A machining block is placed above the machining table, and the machining block is located directly below the milling cutter of the multi-axis moving milling mechanism. The spacing adjustment mechanism includes L-shaped sliding blocks slidably mounted on both sides of the processing table. A stop clamping block and a deflection testing mechanism are movably mounted on the side of the L-shaped sliding block facing the processing table. The stop clamping block is located in the middle of the deflection testing mechanism and the L-shaped sliding block. The strip surface of the deflection testing mechanism rotates to fit tightly against the outside of the processing block. A sensor for testing the rotation angle of the strip surface of the deflection testing mechanism is set inside the deflection testing mechanism.

[0007] Preferably, multiple fixed platforms are also fixedly installed on both sides of the processing table, and multiple sliding grooves are also provided on both sides of the processing table. The fixed platforms are provided with telescopic structures inside, and the telescopic structures are located inside the sliding grooves to drive the spacing adjustment mechanism to move.

[0008] Preferably, the deflection testing mechanism includes a limiting frame and a deflection component rotatably installed within the limiting frame, and a positioning component is also installed above the limiting frame.

[0009] Preferably, the bottom end of the L-shaped sliding block is fixedly installed on both sides of the processing table, and a telescopic component is fixedly installed on one side above the L-shaped sliding block. The other end of the telescopic component is fixedly connected to the side of the limiting frame.

[0010] Preferably, the deflecting component includes a rotating bar rotatably mounted inside the limiting frame and a strip fixedly mounted on the side of the rotating bar.

[0011] Preferably, the rotating strip has a through-hole rotating groove, and multiple connectors are fixedly installed on the side of the rotating strip, with one end of each connector being fixedly connected to the side of the strip.

[0012] Preferably, a rotating shaft is rotatably mounted inside the limiting frame, and the rotating shaft is fixedly mounted inside the rotating groove.

[0013] Preferably, a positioning groove is provided at the uppermost end of the rotating shaft, and a rotation angle test piece is installed below the positioning groove. The rotation angle test piece is fixedly installed inside the upper end of the rotating shaft.

[0014] Preferably, the upper end of the limiting frame has a through groove, the upper end of the rotating shaft is rotatably mounted inside the through groove, and the positioning groove is located inside the through groove.

[0015] Preferably, the positioning component includes a fixed cylinder fixedly installed above the limiting frame and a push motor fixedly installed above the fixed cylinder. A lifting block is installed inside the fixed cylinder, and an insert is installed below it, with the insert corresponding to the positioning groove.

[0016] The beneficial effects of this invention are as follows: 1. The present invention discloses a spacing adjustment device for a CNC gantry milling machine. After the machining block is moved to the initial milling position by the machining table, the deflection test mechanism performs a deflection test. If the test shows that the two sides of the machining block are not in a vertical state, that is, the positioning and conveying are offset, the abutment clamping block, which is always in a vertical state, will move closer to the direction of the corresponding deflection test mechanism. After the abutment rotation, the deflection test mechanism returns to the original vertical state. That is, the opposite movement of the two abutment clamping blocks will cause the machining block to be squeezed and clamped, thereby positioning the machining block a second time. Then, with the cooperation of the multi-axis movement of the multi-axis moving milling mechanism and the displacement of the machining table, the milling cutter of the multi-axis moving milling mechanism completes the machining of the machining block.

[0017] 2. The spacing adjustment device for a CNC gantry milling machine described in this invention, after the positioning machining block is clamped by two abutting clamping blocks, the abutting clamping blocks will push the corresponding deflection test mechanism back to the vertical state. At this time, the electric drive pushes the motor to make the lifting block and the insert strip descend, allowing the insert strip to be inserted into the interior of the positioning groove, positioning the vertical state of the deflection test mechanism. Then, the initial position of the deflection test mechanism and the abutting clamping blocks is returned to the initial position, ready for the next offset test and secondary positioning. Attached Figure Description

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] Figure 1 This is a three-dimensional view of the entire invention; Figure 2 This is a three-dimensional schematic diagram of the processing table in this invention; Figure 3 This is a three-dimensional schematic diagram of the spacing adjustment mechanism in this invention; Figure 4 This is a three-dimensional schematic diagram of the first state of the deflection testing mechanism in this invention; Figure 5 This is a three-dimensional schematic diagram of the second state of the deflection testing mechanism in this invention; Figure 6 This is a three-dimensional schematic diagram of the deflection component in this invention; Figure 7 This is a three-dimensional schematic diagram of the positioning component in this invention.

[0020] In the diagram: 1. Machine tool; 2. Multi-stage telescopic mechanism; 3. Machining table; 31. Fixed table; 32. Sliding groove; 4. Frame; 5. Multi-axis moving milling mechanism; 6. Spacing adjustment mechanism; 7. Deflection testing mechanism; 71. Limit frame; 711. Rotating shaft; 712. Through groove; 7111. Positioning groove; 7112. Rotation angle test piece; 72. Deflection piece; 721. Rotating bar; 7211. Rotating groove; 7212. Connecting piece; 722. Adhesive strip; 73. Positioning piece; 731. Fixed cylinder; 732. Drive motor; 733. Lifting block; 734. Embedded strip; 8. Abutment clamping block; 9. L-shaped sliding block; 91. Telescopic piece. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0022] Example 1: As Figures 1-3 As shown, a spacing adjustment device for a CNC gantry milling machine according to an embodiment of the present invention includes a machine tool 1, a multi-stage telescopic mechanism 2 and a machining table 3 movably mounted on the machine tool 1, a frame 4 mounted on the machine tool 1, a multi-axis moving milling mechanism 5 movably mounted on the frame 4, spacing adjustment mechanisms 6 movably mounted on both sides of the machining table 3, and a machining block placed on the top of the machining table 3, the machining block being directly below the milling cutter of the multi-axis moving milling mechanism 5; The spacing adjustment mechanism 6 includes L-shaped sliding blocks 9 slidably mounted on both sides of the processing table 3. A stop clamping block 8 and a deflection testing mechanism 7 are movably mounted on the side of the L-shaped sliding block 9 facing the processing table 3. The stop clamping block 8 is located in the middle of the deflection testing mechanism 7 and the L-shaped sliding block 9. The strip surface of the deflection testing mechanism 7 rotates to fit tightly against the outside of the processing block. A sensor for testing the rotation angle of the strip surface of the deflection testing mechanism 7 is set inside the deflection testing mechanism 7.

[0023] Specifically, in this device, when milling is required, the multi-stage telescopic mechanism 2 is in a retracted state. At this time, the machining block can be positioned and transported to the top of the machining table 3. Subsequently, the multi-stage telescopic mechanism 2 extends, thereby driving the machining table 3 and the machining block to the required milling position. At this time, the multi-axis movement of the multi-axis moving milling mechanism 5 and the displacement of the machining table 3 cooperate with each other, so that the milling cutter of the multi-axis moving milling mechanism 5 can process different positions of the machining block above the machining table 3. After the machining table 3 drives the machining block to the initial milling position, the two deflection testing mechanisms 7 on both sides of the machining table 3 move towards the machining block between them until the strip surface of the deflection testing mechanism 7 rotates and sticks to the outside of the machining block. In the initial state, the strip surface of the deflection testing mechanism 7 is in a vertical state. If the deflection testing machine After the strip surface of the deflection testing mechanism 7 is pressed against the outside of the processing block, it rotates, that is, the strip surface of the deflection testing mechanism 7 rotates from a vertical state. This rotation is sensed by the sensor. In this case, it means that the two sides of the processing block are not in a vertical state, that is, the positioning and conveying are offset, which will affect the milling accuracy of the subsequent processing block. In this device, at this time, the abutment clamping block 8, which is always in a vertical state, moves closer to the corresponding deflection testing mechanism 7. After the abutment rotation, the deflection testing mechanism 7 returns to its original vertical state. That is, the opposite movement of the two abutment clamping blocks 8 will squeeze and clamp the processing block, thereby positioning the processing block a second time. Then, with the cooperation of the multi-axis movement of the multi-axis moving milling mechanism 5 and the displacement of the processing table 3, the milling cutter of the multi-axis moving milling mechanism 5 completes the processing of the processing block.

[0024] like Figures 2-6 As shown, multiple fixed platforms 31 are also fixedly installed on both sides of the processing table 3, and multiple sliding grooves 32 are also provided on both sides of the processing table 3. The fixed platform 31 is equipped with a telescopic structure inside, and the telescopic structure is located inside the sliding groove 32 to drive the spacing adjustment mechanism 6 to move.

[0025] The deflection testing mechanism 7 includes a limit frame 71 and a deflection component 72 rotatably installed within the limit frame 71. A positioning component 73 is also installed above the limit frame 71.

[0026] The bottom end of the L-shaped sliding block 9 is fixedly installed on both sides of the processing table 3. A telescopic component 91 is fixedly installed on one side above the L-shaped sliding block 9, and the other end of the telescopic component 91 is fixedly connected to the side of the limiting frame 71.

[0027] The deflector 72 includes a rotating bar 721 rotatably mounted inside the limit frame 71 and a strip 722 fixedly mounted on the side of the rotating bar 721.

[0028] The rotating bar 721 has a through-hole rotating groove 7211, and multiple connectors 7212 are fixedly installed on the side of the rotating bar 721. One end of the multiple connectors 7212 is fixedly connected to the side of the strip 722.

[0029] The limiting frame 71 has a rotating shaft 711 rotatably mounted inside it, and the rotating shaft 711 is fixedly installed inside the rotating groove 7211.

[0030] Specifically, after the multi-stage telescopic mechanism 2 extends and retracts, causing the processing table 3 and the processing block above it to move, the processing block will be in the initial processing position. At this time, the processing block is positioned between the two spacing adjustment mechanisms 6, and the two spacing adjustment mechanisms 6 are on the same axis as the center of the processing block. The electric drive causes the telescopic component 91 to extend, thereby driving the deflection test mechanism 7 to move until the deflection component 72 contacts the outer side of the processing block. When the deflection component 72 is in close contact with the outer side of the processing block, it rotates, that is, the deflection component 72 and the limiting frame 71 rotate around the rotation axis 711. The center rotates, and the sensor detects the rotation angle of the deflection component 72 and the limiting frame 71, indicating that there is a deviation in the positioning and conveying of the processing block, which may affect the subsequent milling process. Then, by driving the telescopic connection structure between the abutment clamping block 8 and the L-shaped sliding block 9, the abutment clamping block 8 moves to push the limiting frame 71 back to the vertical state. That is, under the clamping of the two abutment clamping blocks 8 moving towards each other, the two deflection test mechanisms 7 and the processing block therein are clamped and positioned, and the processing block is repositioned to prevent errors in the subsequent milling process.

[0031] Example 2: Figures 6-7 As shown in the first embodiment, another embodiment of the present invention is as follows: a positioning groove 7111 is provided at the uppermost end of the rotating shaft 711, and a rotation angle test piece 7112 is installed below the positioning groove 7111. The rotation angle test piece 7112 is fixedly installed inside the upper end of the rotating shaft 711.

[0032] The upper end of the limiting frame 71 has a through groove 712, the upper end of the rotating shaft 711 is rotatably installed inside the through groove 712, and the positioning groove 7111 is located inside the through groove 712.

[0033] The positioning component 73 includes a fixed cylinder 731 fixedly installed above the limiting frame 71 and a push motor 732 fixedly installed above the fixed cylinder 731. A lifting block 733 is installed inside the fixed cylinder 731, and an insert 734 is installed below the 7333. The insert 734 corresponds to the positioning groove 7111.

[0034] Specifically, when the deflection testing mechanism 7 rotates around the rotating shaft 711, it causes the rotating shaft 711 to rotate inside the through groove 712. At this time, the insert 734 is above the positioning groove 7111. The rotation angle testing piece 7112 will sense the rotation and detect that the processing block being positioned and conveyed has a positional offset. This necessitates the subsequent clamping and positioning work of the two opposing clamping blocks 8. After the rotating shaft 711 rotates, the positioning groove 7111 will also be driven to rotate, that is, the insert 734 and the positioning groove 7111... 11 is not in the corresponding vertical state, indicating that the deflection test mechanism 7 is not in the vertical state. After the two abutting clamping blocks 8 clamp the positioning processing block, the abutting clamping blocks 8 will push the corresponding deflection test mechanism 7 back to the vertical state. At this time, the electric drive push motor 732 causes the lifting block 733 and the insert 734 to descend, allowing the insert 734 to be inserted into the positioning groove 7111 to position the vertical state of the deflection test mechanism 7. Then, the initial position of the deflection test mechanism 7 and the abutting clamping block 8 is restored, ready for the next offset test and secondary positioning.

[0035] Working Principle: In this device, when milling is required, the multi-stage telescopic mechanism 2 is in a retracted state, at which time the machining block can be positioned and transported to the top of the machining table 3. Subsequently, the multi-stage telescopic mechanism 2 extends, thereby driving the machining table 3 and the machining block to the required milling position. At this time, the multi-axis movement of the multi-axis moving milling mechanism 5 and the displacement of the machining table 3 cooperate with each other, so that the milling cutter of the multi-axis moving milling mechanism 5 can process different positions of the machining block above the machining table 3. After the machining table 3 drives the machining block to the initial milling position, the two deflection testing mechanisms 7 on both sides of the machining table 3 move towards the machining block between them until the deflection test... The strip surface of mechanism 7 rotates and adheres tightly to the outside of the machining block. Initially, the strip surface of the deflection testing mechanism 7 is in a vertical state. If the strip surface of the deflection testing mechanism 7 rotates after adhering to the outside of the machining block, that is, the strip surface of the deflection testing mechanism 7 rotates from a vertical state, this rotation is sensed by the sensor. In this case, it indicates that the two sides of the machining block are not in a vertical state, that is, the positioning and conveying have been offset, which will affect the milling accuracy of the subsequent machining block. In this device, at this time, the abutment clamping block 8, which is always in a vertical state, will move closer to the corresponding deflection testing mechanism 7. After the abutment rotation, the deflection testing mechanism 7 returns to its original vertical state. The opposing movement of the two abutting clamping blocks 8 will cause the processing block to be squeezed and clamped, thereby positioning the processing block a second time. Then, with the cooperation of the multi-axis movement of the multi-axis moving milling mechanism 5 and the displacement of the processing table 3, the milling cutter of the multi-axis moving milling mechanism 5 completes the processing of the processing block. When the deflection testing mechanism 7 rotates around the rotating shaft 711, it will drive the rotating shaft 711 to rotate inside the through groove 712. At this time, the insert 734 is above the positioning groove 7111. The rotation angle testing piece 7112 will sense the rotation and detect that the position of the positioning and conveying processing block is offset. Therefore, the two abutting clamping blocks 8 need to move towards each other. During the clamping and positioning process, when the rotating shaft 711 rotates, the positioning groove 7111 will also be driven to rotate, meaning that the insert 734 and the positioning groove 7111 are not in a vertically corresponding state, indicating that the deflection test mechanism 7 is not in a vertical state. After the two abutting clamping blocks 8 clamp the positioning processing block, the abutting clamping blocks 8 will push the corresponding deflection test mechanism 7 back to the vertical state. At this time, the electric drive push motor 732 causes the lifting block 733 and the insert 734 to descend, allowing the insert 734 to be inserted into the positioning groove 7111, positioning the deflection test mechanism 7 in a vertical state. Then, the deflection test mechanism 7 and the abutting clamping blocks 8 return to their initial positions, ready for the next offset test and secondary positioning.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spacing adjustment device for a CNC gantry milling machine, comprising a machine tool (1) and a multi-stage telescopic mechanism (2) and a machining table (3) movably mounted above the machine tool (1), wherein a frame (4) is mounted above the machine tool (1), and a multi-axis moving milling mechanism (5) is movably mounted on the frame (4), characterized in that: The processing table (3) is movably equipped with a spacing adjustment mechanism (6) on both sides. A processing block is placed on top of the processing table (3), and the processing block is located directly below the milling cutter of the multi-axis moving milling mechanism (5). The spacing adjustment mechanism (6) includes L-shaped sliding blocks (9) that are slidably installed on both sides of the processing table (3). The L-shaped sliding blocks (9) are movably installed with a retaining block (8) and a deflection test mechanism (7) on the side facing the processing table (3). The retaining block (8) is located in the middle of the deflection test mechanism (7) and the L-shaped sliding block (9). The strip surface of the deflection test mechanism (7) rotates to fit against the outside of the processing block. The interior of the deflection test mechanism (7) is equipped with a sensor for testing the rotation angle of the strip surface of the deflection test mechanism (7).

2. The spacing adjustment device for a CNC gantry milling machine according to claim 1, characterized in that: Multiple fixed platforms (31) are also fixedly installed on both sides of the processing table (3). Multiple sliding grooves (32) are also provided on both sides of the processing table (3). A telescopic structure is provided inside the fixed platform (31). The telescopic structure is located inside the sliding groove (32) and is used to drive the spacing adjustment mechanism (6) to move.

3. The spacing adjustment device for a CNC gantry milling machine according to claim 1, characterized in that: The deflection testing mechanism (7) includes a limiting frame (71) and a deflection component (72) rotatably installed in the limiting frame (71). A positioning component (73) is also installed above the limiting frame (71).

4. The spacing adjustment device for a CNC gantry milling machine according to claim 3, characterized in that: The bottom end of the L-shaped sliding block (9) is fixedly installed on both sides of the processing table (3), and a telescopic component (91) is fixedly installed on the upper side of the L-shaped sliding block (9). The other end of the telescopic component (91) is fixedly connected to the side of the limiting frame (71).

5. A spacing adjustment device for a CNC gantry milling machine according to claim 3, characterized in that: The deflector (72) includes a rotating bar (721) rotatably mounted inside the limiting frame (71) and a strip (722) fixedly mounted on the side of the rotating bar (721).

6. The spacing adjustment device for a CNC gantry milling machine according to claim 5, characterized in that: The rotating bar (721) has a through-hole rotating groove (7211) inside. Multiple connectors (7212) are fixedly installed on the side of the rotating bar (721), and one end of the multiple connectors (7212) is fixedly connected to the side of the strip (722).

7. A spacing adjustment device for a CNC gantry milling machine according to claim 6, characterized in that: The limiting frame (71) is rotatably mounted with a rotating shaft (711), which is fixedly installed inside the rotating groove (7211).

8. A spacing adjustment device for a CNC gantry milling machine according to claim 7, characterized in that: The uppermost end of the rotating shaft (711) is provided with a positioning groove (7111), and a rotation angle test piece (7112) is installed below the positioning groove (7111). The rotation angle test piece (7112) is fixedly installed inside the upper end of the rotating shaft (711).

9. A spacing adjustment device for a CNC gantry milling machine according to claim 8, characterized in that: The upper end of the limiting frame (71) has a through groove (712) that extends through it. The upper end of the rotating shaft (711) is rotatably installed inside the through groove (712). The positioning groove (7111) is located inside the through groove (712).

10. A spacing adjustment device for a CNC gantry milling machine according to claim 9, characterized in that: The positioning component (73) includes a fixed cylinder (731) fixedly installed above the limiting frame (71) and a push motor (732) fixedly installed above the fixed cylinder (731). A lifting block (733) is installed inside the fixed cylinder (731) and an insert (734) is installed below the (7333). The insert (734) corresponds to the positioning groove (7111).

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