Multi-axis linkage four-axis flower milling machine and tool automatic calibration equipment

Abstract

The invention relates to the technical field of workpiece adjustment, in particular to a multi-axis linkage four-axis flower milling machine and tool automatic calibration device which comprises a base, two supporting blocks, a supporting frame, a supporting assembly, a swing block, a sliding plate, an alignment assembly, a screw rod and a pressing piece. The supporting frames are connected to the upper side of the supporting block, the two supporting assemblies are connected to the back sides of the two supporting frames correspondingly, the swing block is connected between the two supporting frames, the sliding plate is connected to the upper side of the swing block, the alignment assemblies are connected to the two sides of the sliding plate, and the screws are connected to the lower sides of the supporting frames. According to the pattern block alignment device, the alignment assembly is connected with the threaded hole of the pattern block, so that new positioning faces used for locking the pattern block in the left-right direction are formed on the two sides of the positioning block, the center position of the positioning block is adjusted through movement of the pressing plate, and then the purpose of pattern block alignment is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of workpiece adjustment, and particularly to a four-axis milling machine with multi-axis linkage and a tooling automatic calibration device. Background Art

[0002] A four-axis milling machine is a milling processing device that can perform high-precision processing on workpieces and is often used for end milling of the pattern blocks of flexible molds. Since the structures and sizes of the pattern blocks (except for the pattern surfaces) in the same mold are the same, when machining the end faces of the pattern blocks, in order to improve the milling speed, an automatic calibration device is used to quickly position the pattern blocks.

[0003] The automatic calibration device drives two clamping plates to contact one end face of the pattern block from the left and right sides of the pattern block, and after contact, move closer to the middle until the two clamping plates respectively contact the two ends of the pattern block, thereby positioning the central position of the pattern block in the left-right direction. After determining the positions of the two ends of the pattern block in the left-right direction, the positions of the pattern block in the front-back direction are locked. At this time, the clamping plates on the left and right sides are moved away to facilitate the milling processing of the two ends of the pattern block. The milling of the end face of the pattern block is not only carried out during production but also during maintenance (after the pattern block is used for a long time, cracks will occur on its end face due to pressure, which will affect the production quality. In order to repair the end face of the pattern block, incremental maintenance of the pattern block will be carried out, that is, repair by welding, and milling will be carried out after maintenance to restore the size of the pattern block). However, the increment generated during the incremental maintenance of the pattern block is affected by the size and depth of the crack, resulting in different increments on both sides of the pattern block. During the process of calibrating the central position of the pattern block in the left-right direction from both sides, the central position of the pattern block in the left-right direction is prone to deviate to the side with less increment, resulting in low calibration accuracy of the pattern block and thus affecting subsequent processing.

[0004] In response to the above problems, some solutions have been proposed in the prior art. For example, by reducing the clamping area on both sides to avoid the area of incremental maintenance. However, reducing the clamping area will increase the pressure on both ends of the pattern block. When machining a pattern block with a bimetallic composite structure, the pattern surface of the pattern block is made of aluminum alloy material for easy demolding. Since the hardness of the aluminum alloy material is relatively low, reducing the clamping area will increase the clamping pressure, and the relatively large clamping pressure is likely to cause damage to the aluminum alloy area, affecting the use of the pattern block. Reducing the clamping force will result in a poor alignment effect and affect the processing accuracy.

[0005] Therefore, a four-axis milling machine with multi-axis linkage and a tooling automatic calibration device are proposed. Summary of the Invention

[0006] The object of the present invention is to provide a four-axis milling and grooving machine with multi-axis linkage and a tooling automatic calibration device, which solves the problem of inconvenient self-positioning caused by inconsistent increments at both ends of the grooved block after incremental repair. By connecting the alignment component to the threaded holes on the surface of the grooved block, the left-right direction of the grooved block is locked, and the positioning blocks extended additionally by the swing block are used to replace the left and right surfaces of the grooved block. By moving the pressing plate, the left and right surfaces of the positioning block are adjusted, thereby achieving the purpose of adjusting the center position of the grooved block in the left-right direction.

[0007] To achieve the above object, the present invention provides the following technical solutions: A tooling automatic calibration device for processing grooved blocks with threaded holes, comprising a base, support blocks, a support frame, a support component, a swing block, a slide plate, an alignment component, a screw rod, and pressing members. The two support blocks are respectively connected to the front and rear sides of the upper surface of the base, the support frame is connected to the upper side of the support blocks, the two support components are respectively connected to the opposite sides of the two support frames, the swing block is connected between the two support frames, the slide plate is connected to the upper side of the swing block, the alignment component is connected to both sides of the slide plate, the screw rod is connected to the lower side of the support frame, and the two pressing members are connected to both ends of the screw rod, and the pressing members are located on the opposite sides of the support blocks. When the support component is pressed, the slide plate drives the alignment component to fit on the outer arc surface of the grooved block. When the swing block drives the slide plate to rotate to a specified angle, the alignment component is docked with the threaded hole. When the screw rod rotates, the pressing member drives the swing block to rotate to a specified angle and then locks the grooved block.

[0008] Through the above solution, since incremental repairs have been carried out on the two end faces of the grooved block, when performing alignment, the left and right end faces of the grooved block cannot be used as the reference points. Therefore, the alignment component is arranged on the bottom surface of the grooved block and can be connected to the threaded holes on the bottom surface of the grooved block. Since the grooved blocks of the flexible mold are divided into equal parts and have the same structure except for the grooved surface, the positions of the threaded holes opened on the back surface of the grooved block are the same. By positioning the positions of the two threaded holes through the alignment component, a reference point in the left-right direction of the grooved block is formed. Therefore, by adjusting the position of the alignment component through the swing block, precise control of the position of the grooved block can be achieved, thereby reducing the calibration process of the grooved block and improving production efficiency.

[0009] Preferably, the support component includes a support plate, a push spring, and a communication pipe. The support plate is slidably connected to the inner cavity of the support frame. The left and right sides of the support plate are vertical. The push spring is connected between the support frame and the support plate. The two ends of the communication pipe are respectively connected to the inner cavities of the support frame and the swing block. When the slide plate is not in contact with the grooved block, the upper surface of the support plate protrudes from the upper surface of the support frame.

[0010] Through the above solution, both ends of the connecting pipe are respectively connected to the inner cavities of the support frame and the swing block. Thus, the gas in the inner cavity of the support block can flow into the inner cavity of the swing block. Therefore, when the pattern block is in contact with the support plate and the alignment component is not docked with the threaded hole, the sliding plate has not been lifted in place yet, and a distance is maintained between the lower arc surface of the pattern block and the upper arc surface of the sliding plate. This reduces the friction when the sliding plate rotates, facilitating the docking of the alignment component with the pattern block.

[0011] Preferably, the curvature of the upper arc surface of the support plate is the same as that of the lower arc surface of the pattern block, and longitudinal stripes are provided at the top of the support plate.

[0012] Through the above solution, the provision of the longitudinal stripes effectively increases the resistance when the pattern block moves left and right, facilitating the sliding plate to drive the alignment component to rotate.

[0013] Preferably, a positioning block is connected to the lower end of the swing block, and the distance values on the left and right sides of the positioning block are equal to the distance values on the left and right sides of the support block.

[0014] Through the above solution, the position of the positioning block can be positioned by the left and right sides of the support block, effectively improving the accuracy when calibrating the position of the pattern block.

[0015] Preferably, the alignment component includes a positioning post, a motor, a mounting frame, a gear set, a spline block, a spline shaft, an adjusting member, and a switch. The positioning post is connected to the sliding plate, the motor is connected to the lower side of the sliding plate, the mounting frame is connected to the lower side of the outer surface of the motor, the input end of the gear set is connected to the output end of the motor, the spline block is connected to the mounting frame, and the lower end of the spline block is connected to the output end of the gear set. The spline shaft is key-connected to the upper side of the spline block. An adjusting member is connected to one side of the support frame close to the swing block, and a switch is connected to the inner cavity of the support frame. The switch is electrically connected to the motor. The top of the positioning post protrudes above the upper surface of the sliding plate, and a chamfer is provided at the top of the positioning post. Horizontal stripes are provided on the upper arc surface of the support frame.

[0016] Through the above solution, for the convenience of assembling the pattern block, the threaded holes on the surface of the flexible mold are chamfered to guide the connection position of the screws during assembly. The top of the positioning post protrudes above the upper surface of the sliding plate, and the positioning post is docked with the chamfer. On the one hand, this facilitates the limitation of the swing block when the swing block drives the alignment component to position the threaded hole. On the other hand, the setting that the top of the positioning post protrudes above the sliding plate makes the back surface of the pattern block contact the positioning post instead of the sliding plate when the positioning post is not docked with the threaded hole, effectively reducing the resistance when the swing block moves.

[0017] Preferably, threads are provided on the outer surface of the spline shaft. The spline shaft is threadedly connected to the positioning post and is also threadedly connected to the threaded hole.

[0018] Through the above solution, the provision of two spline columns realizes the positioning and locking of the pattern block, thereby effectively ensuring the accuracy when calibrating the pattern block.

[0019] Preferably, the pressing member includes a pressing plate, a base plate and a push plate, the pressing plate is connected to the screw, the base plate is connected to the left and right sides of the front pressing plate, the push plate is connected to the rear side of the base plate, the angle between the push plate and the base plate is an obtuse angle, and the minimum distance between the two base plates is equal to the distance between the left and right sides of the positioning block.

[0020] Through the above scheme, the distance between the two substrates is equal to the distance between the left and right sides of the positioning block. Then, by moving the substrate, the position of the positioning block can be adjusted so that the positioning block moves between the two substrates, thereby achieving precise alignment of the positioning block.

[0021] Preferably, when the two base plates are respectively fitted with the positioning blocks on the left and right, there is a gap between the pressure plate and the pattern block, and the adjusting member includes a through hole, a support spring and a piston. The through hole is opened on the side of the support block close to the swing block, the support spring is connected in the through hole, and the piston is connected to the side of the support spring close to the swing block. When the positioning block is in a vertical shape, the through hole is connected to the inner cavity of the swing block.

[0022] Through the above scheme, the volume of gas in the swing block and the support frame can be changed, so that when the swing block rotates, part of the gas is accommodated in the through hole, and the total volume of gas in its inner cavity is smaller. After the spline column moves up, the support plate moves down and separates from the pattern block, thereby achieving the purpose of reducing the friction when the pattern block rotates.

[0023] A four-axis milling machine capable of multi-axis linkage includes any one of the above-mentioned tooling automatic calibration devices, and also includes a four-axis machine tool, a chuck and a collar, wherein the chuck is connected to the rear side of the four-axis machine tool, the collar is connected to the front side of the chuck, a positioning strip is connected to the inner wall of the collar, the base is arranged between the two positioning strips, and the base is connected to the collar by screws.

[0024] Through the above solution, the base is arranged between the two positioning strips, thereby facilitating the positioning of the base, and is connected by screws, thereby facilitating disassembly.

[0025] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention solves the problem of inconvenience in positioning the pattern block due to inconsistent increments at both ends of the pattern block after incremental maintenance of the pattern block, which in turn causes low maintenance efficiency. The alignment component is attached to the lower arc surface of the pattern block for connection with the threaded hole of the pattern block, thereby locking the pattern block, and the swing block is extended with an additional positioning block to replace the left and right surfaces of the pattern block. By moving the pressing piece, the push plate calibrates the center position of the positioning block, thereby realizing the center calibration of the pattern block. At the same time, the backward movement of the push plate will fit the pattern block and lock the pattern block, thereby realizing the locking of the pattern block.

[0026] 2. By setting a supporting component, the positioning column protrudes from the upper arc surface of the skateboard, so that when the alignment component is not aligned with the pattern block, there is a gap between the skateboard and the pattern block, thereby avoiding contact between the pattern block and the skateboard to reduce the friction when the swing block rotates, thereby achieving the purpose of facilitating the adjustment of the position of the alignment component to improve the alignment efficiency. On the other hand, the reduction in the upward movement distance of the skateboard reduces the available volume of the inner cavity of the swing block, thereby making the top surface of the support plate protrude from the supporting frame, so as to increase the static friction between the pattern block and the support plate through the longitudinal stripes on the upper surface of the support plate, thereby avoiding the movement of the pattern block during alignment to effectively ensure the alignment efficiency.

[0027] 3. By setting the alignment component, when the alignment component is aligned with the pattern block, the motor will drive the spline column to rotate. On the one hand, the rotation of the spline column realizes the locking of the pattern block and the skateboard, which makes it easy to adjust the position of the pattern block through the support frame. On the other hand, the upward movement of the spline column expands the volume of the inner cavity of the swing block. Since the pattern block and the skateboard are locked, the volume of the inner cavity of the swing block tends to increase, and then the gas flows into the inner cavity of the swing block, causing the support plate to move downward, and the support plate moves downward and separates from the pattern block. The pattern block falls in the horizontal stripes on the surface of the support frame, thereby reducing the resistance of the pattern block when it rotates left and right, which is convenient for the calibration and adjustment of the pattern block. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the tooling automatic calibration device of the present invention; Figure 2 It is a structural schematic diagram of the support component part of the present invention; Figure 3 It is a structural schematic diagram of the alignment component part of the present invention; Figure 4 It is a structural schematic diagram of the pressing part of the present invention; Figure 5 For the present invention Figure 3 A is an enlarged schematic diagram; Figure 6 It is a schematic diagram of the state of the tread block of the present invention when it is placed; Figure 7 It is a schematic diagram of the state of the swing block of the present invention when it rotates; Figure 8 This is a schematic structural diagram of the four-axis milling and grooving machine of the present invention.

[0029] In the figure: 1, base; 2, support block; 3, support frame; 4, support assembly; 401, support plate; 402, push spring; 403, connecting pipe; 5, swing block; 501, positioning block; 6, sliding plate; 7, alignment assembly; 701, positioning column; 702, motor; 703, mounting bracket; 704, gear set; 705, spline block; 706, spline column; 707, adjusting part; 7071, through hole; 7072, support spring; 7073, piston; 708, switch; 8, screw; 9, pressing part; 901, pressing plate; 902, base plate; 903, push plate; 10, four-axis machine tool; 11, chuck; 12, collar; 1201, positioning strip. Specific embodiments

[0030] Next, in combination with the accompanying drawings of the embodiments of the present invention, the technical solutions of the embodiments of the present invention will be clearly and completely described to make its working state and structural features more detailed. Obviously, the described embodiments are only partial embodiments of the present invention, not complete embodiments. Based on the embodiments of the present invention, other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figures 1 to 7 , the present invention provides a tooling automatic calibration device, and the technical solution is as follows: Specifically, please refer to Figures 1 to 7, A tooling automatic calibration device is used for the positioning operation of tread blocks. Two threaded holes are provided on the lower arc surface of the tread block. The tread blocks in the movable die are evenly divided, and except for the tread surface, the structures of each tread block are basically the same. Therefore, by positioning the positions of the two threaded holes, the adjustment of the tread block in the left-right direction can be realized, thereby reducing the tool setting process and improving the processing efficiency. A convex surface is provided on the lower arc surface of the tread block, and the convex surface is arc-shaped. The threaded holes are opened on the convex surface of the tread block. The tooling automatic calibration device includes a base 1, support blocks 2, a support frame 3, a support assembly 4, a swing block 5, a slide plate 6, an alignment assembly 7, a screw rod 8, and a pressing member 9. The two support blocks 2 are respectively fixedly connected to the front and rear sides of the upper surface of the base 1. The support frame 3 is fixedly connected to the upper side of the support block 2. The convex surface of the tread block is clamped between the two support frames 3. The front-back direction of the tread block is limited by the support frames 3. The two support assemblies 4 are respectively connected to the opposite sides of the two support frames 3. The swing block 5 is connected between the two support frames 3. The swing block 5 is arc-shaped, and the swing block 5 can rotate along the center of the swing block 5 between the support frames 3. The back surface of the tread block is arc-shaped, and when the tread block is attached to the upper side of the swing block 5, the center of the tread block and the center of the swing block 5 are on the same axis. The slide plate 6 is connected to the upper side of the swing block 5. The slide plate 6 is arc-shaped, and the upper arc surface of the slide plate 6 is adaptively attached to the convex surface of the tread block. The alignment assembly 7 is connected to both sides of the slide plate 6. The screw rod 8 is connected to the lower side of the support frame 3. The surface of the screw rod 8 is a double-thread, and the two threads have opposite helix directions. The two pressing members 9 are connected to both ends of the screw rod 8, and the pressing members 9 are located on the opposite sides of the support block 2. When the screw rod 8 rotates, it can drive the two pressing members 9 to move towards and away from each other. When the support assembly 4 is pressed, the slide plate 6 drives the alignment assembly 7 to fit against the outer arc surface of the tread block. When the swing block 5 drives the slide plate 6 to rotate to a specified angle, the alignment assembly 7 is docked with the threaded holes. When the screw rod 8 rotates, the pressing member 9 drives the swing block 5 to rotate to a specified angle and then locks the tread block.

[0032] By setting the alignment assembly 7, the alignment assembly 7 is arranged on the bottom surface of the tread block and can locate the two threaded holes on the bottom surface of the tread block. By locking the two threaded holes, the adjustment of the tread block in the left-right direction is realized, and then the position of the tread block in the left-right direction is locked. At the same time, the setting of the pressing member 9 can lock the position of the tread block in the front-back direction. Thus, the precise control of the position of the tread block is achieved, the calibration process of the tread block is reduced, and the production efficiency is improved.

[0033] As an implementation manner of the present invention, refer to Figure 2 , Figure 3 , Figure 6 and Figure 7, the support assembly 4 includes a support plate 401, a push spring 402, and a connecting pipe 403. The support plate 401 is slidably connected to the inner cavity of the support frame 3. The left and right sides of the support plate 401 are vertical. The push spring 402 is connected between the support frame 3 and the support plate 401. The two ends of the connecting pipe 403 are respectively connected to the inner cavities of the support frame 3 and the swing block 5. When the sliding plate 6 is not in contact with the tread block, the upper surface of the support plate 401 protrudes from the upper surface of the support frame 3. The upper arc surface of the support plate 401 has the same curvature as the lower arc surface of the tread block. The upper arc surface of the support plate 401 is adapted to fit the lower arc surface of the tread block. Longitudinal stripes are provided on the upper side of the support plate 401, which can effectively increase the friction between the support plate 401 and the tread block. A positioning block 501 is connected to the lower end of the swing block 5. The distance value between the left and right sides of the positioning block 501 is equal to the distance value between the left and right sides of the support block 2.

[0034] By providing the support assembly 4, the connecting pipe 403 connects the inner cavity of the support frame 3 with the inner cavity of the swing block 5, and gas is filled in the inner cavities of the support and the swing block 5. The volume of the gas is fixed. At the same time, in the initial state, the push spring 402 pushes the support plate 401 upward. At this time, the connecting pipe 403 extracts the gas in the inner cavity of the swing block 5, causing the sliding plate 6 to move downward. When positioning the tread block, the tread block first presses on the support plate 401, causing the support plate 401 to move downward, thereby promoting the gas to flow into the inner cavity of the swing block 5, causing the sliding plate 6 to move upward, and then pushing the alignment assembly 7 to fit against the rear side of the tread block. When aligning the tread block, the alignment assembly 7 fits against the rear side of the tread block and rotates with the swing block 5. At this time, the tread block is placed on the surface of the support plate 401. The longitudinal stripes provided on the surface of the support plate 401 can effectively increase the friction between the tread block and the support plate 401, thereby preventing the tread block from sliding.

[0035] As an implementation manner of the present invention, referring to Figure 3 , Figure 4 , Figure 6 and Figure 7, the alignment component 7 includes a positioning column 701, a motor 702, a mounting frame 703, a gear set 704, a spline block 705, a spline column 706, an adjusting member 707 and a switch 708, the positioning column 701 is connected to the slide plate 6, the motor 702 is connected to the lower side of the slide plate 6, the mounting frame 703 is connected to the lower side of the outer surface of the motor 702, the input end of the gear set 704 is connected to the output end of the motor 702, when the slide plate 6 moves down to the limit position, the gear set 704 does not contact the bottom wall of the inner cavity of the swing block 5, the spline block 705 is connected to the mounting frame 703, and the lower end of the spline block 705 is connected to the output end of the gear set 704, the spline block 705 can be driven to rotate by the motor 702, and the spline column 706 is key-connected to the spline block 705. On the upper side of the key block 705, the rotation of the spline block 705 can drive the spline column 706 to rotate. An adjusting piece 707 is connected to the side of the support frame 3 close to the swing block 5. A switch 708 is connected to the inner cavity of the support frame 3. The switch 708 is electrically connected to the motor 702. When the support plate 401 moves down to the specified position, it will contact the switch 708 to start the motor 702. The top of the positioning column 701 protrudes from the upper surface of the skateboard 6. The position of the positioning column 701 corresponds to the position of the threaded hole. The top of the positioning column 701 is provided with a chamfer to facilitate positioning with the threaded hole. The upper arc surface of the support frame 3 is provided with transverse stripes to reduce the friction between the pattern block and the support frame 3, so as to facilitate the rotation of the pattern block and adjust the left and right position of the pattern block.

[0036] By setting the alignment component 7, when the positioning column 701 is not connected to the threaded hole, the setting of the positioning column 701 allows a gap to exist between the skateboard 6 and the pattern block, thereby avoiding contact between the pattern block and the skateboard 6, reducing the contact area between the pattern block, the alignment component 7 and the skateboard 6, and reducing the resistance of the swing block 5 when driving the skateboard 6 to move. On the other hand, the available volume of the inner cavity of the swing block 5 is reduced, so that the top surface of the support plate 401 protrudes from the support frame 3, and the pattern block contacts the support plate 401. The longitudinal stripes on the surface of the support plate 401 can effectively increase the resistance of the pattern block during rotation, thereby avoiding the low efficiency of positioning the threaded hole due to the movement of the pattern block when adjusting the alignment component 7.

[0037] As an embodiment of the present invention, refer to Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7, the outer surface of the spline column 706 is provided with threads. The spline column 706 is threadedly connected to the positioning column 701 and the threaded hole. There is a chamfer on the upper side of the spline column 706. When docking with the threaded hole, the chamfer will first enter the threaded hole, reducing the movement of the spline block in the left and right directions and facilitating the docking of the spline column and the threaded hole. The thread size on the surface of the spline column 706 is adapted to the thread size of the threaded hole. The pressing part 9 includes a pressing plate 901, a base plate 902 and a pushing plate 903. The pressing plate 901 is connected to the screw 8. When the screw 8 rotates, it can drive the pressing plate 901 to move. The base plate 902 is connected to the left and right sides of the front pressing plate 901. The pushing plate 903 is connected to the rear side of the base plate 902. The angle between the pushing plate 903 and the base plate 902 is obtuse. When the pressing plate 901 moves backward, it will drive the base plate 902 and the pushing plate 903 to move. When the positioning block 501 is inclined, the backward movement of the pushing plate 903 will press the positioning block 501 to reset to a vertical state. The minimum distance value between the two base plates 902 is equal to the distance value on the left and right sides of the positioning block 501. The adjacent sides of the two base plates 902 can simultaneously contact the left and right sides of the positioning block 501 and the left and right sides of the support block 2 to lock the positioning block 501. There is a gap between the pressing plate 901 and the spline block when the two base plates 902 are respectively in close contact with the left and right sides of the positioning block 501, facilitating the adaptation of spline blocks of different sizes. The adjusting part 707 includes a through hole 7071, a support spring 7072 and a piston 7073. The through hole 7071 is opened on the side of the support block 2 close to the swing block 5. The support spring 7072 is connected in the through hole 7071. The piston 7073 is connected to the side of the support spring 7072 close to the swing block 5. When the positioning block 501 is vertical, the through hole 7071 is communicated with the inner cavity of the swing block 5.

[0038] By setting the adjusting part 707, in the initial state, that is, when the positioning block 501 is vertical and the alignment assembly 7 is not connected to the threaded hole, at this time the through hole 7071 is communicated with the swing block 5. After placing the spline block, a part of the gas in the swing block 5 will flow into the through hole 7071 under pressure. At this time, the piston 7073 is far away from the positioning block 501. When rotating the swing block 5 to position the spline block with the alignment assembly 7, the through hole 7071 is cut off from the inner cavity of the swing block 5. At this time, compared with the initial state, the total amount of gas in the inner cavity of the support frame 3 and the inner cavity of the swing block 5 is reduced by a part. As the swing block 5 rotates, the alignment assembly 7 is docked with the spline block. At this time, the sliding plate 6 moves upward, and the supporting plate 401 moves further downward. When the sliding plate 6 is in close contact with the convex surface of the spline block, the upper arc surface of the supporting plate 401 is in close contact with the upper arc surface of the support frame 3. When the spline column 706 rotates and moves upward, the volume of the inner cavity of the swing block 5 increases. At the same time, due to the connection between the spline column 706 and the threaded hole, the sliding plate 6 is closely attached to the lower side of the spline block. The increased volume will generate a suction force on the inner cavity of the support frame 3, causing the supporting plate 401 to move downward and separate from the spline block, thereby reducing the friction force when the spline block moves and facilitating the movement of the spline block.

[0039] Please refer to Figures 1 to 8 , a four-axis milling machine capable of multi-axis linkage, which includes any one of the above-mentioned tooling automatic calibration devices, and also includes a four-axis machine tool 10, a chuck 11 and a collar 12. The chuck 11 is connected to the rear side of the four-axis machine tool 10, the collar 12 is connected to the front side of the chuck 11, a positioning strip 1201 is connected to the inner wall of the collar 12, the base 1 is arranged between the two positioning strips 1201, and the base 1 is connected to the collar 12 by screws.

[0040] By setting the collar 12, the processing angle of the pattern block is adjusted, and the processable space of the four-axis machine tool 10 is increased. Through the setting of screws, it is convenient to replace different tooling automatic calibration devices. The processing position of the four-axis machine tool 10 is adjusted according to the size of the pattern block, so that the four-axis machine tool 10 can realize milling by moving back and forth to contact the side wall of the pattern block.

[0041] In the present invention, by connecting the alignment component 7 to the threaded hole on the surface of the pattern block, the left and right directions of the pattern block are locked, and the flat left and right surfaces of the positioning block 501 extended additionally by the swing block 5 are used to replace the left and right surfaces of the pattern block, so as to facilitate the positioning of the left and right centers of the pattern block. Then, by moving the pressing member 9, the left and right sides of the swing block 5 are locked first, and then the front and rear sides of the pattern block are locked, thereby realizing the calibration of the pattern block; Before working, the tooling automatic calibration device is locked by screws, the chuck 11 drives the tooling automatic calibration device to rotate, so that the central axis of the tooling automatic calibration device is vertically downward, and at the same time, the four-axis machine tool 10 adjusts the processing position; Place the pattern block on the support frame 3. The convex surface of the pattern block is located between the two support frames 3. The pattern block can only move left and right. When the pattern block is placed on the support frame 3, it will press the support plate 401 to move downward. The downward movement of the support plate 401 pushes the gas to flow into the inner cavity of the swing block 5, and makes the slide plate 6 move upward. The upward movement of the slide plate 6 drives the alignment component 7 to fit on the convex surface of the pattern block. Since the positioning column 701 protrudes from the upper arc surface of the slide plate 6, furthermore, the positioning column 701 fits on the convex surface and there is a gap between the slide plate 6 and the convex surface. At the same time, when the positioning block 501 is vertical, the through hole 7071 communicates with the swing block 5, and part of the gas flows into the through hole 7071; Determine the left and right sides of the tread block, and push the swing block 5 to rotate. Since only the positioning post 701 contacts the tread block, the contact area is small, resulting in a small frictional force. Therefore, the resistance for the swing block 5 to drive the alignment assembly 7 to rotate is small. When the positioning post 701 moves to the threaded hole, the gas pushes the positioning post 701 to move upward through the slide plate 6 and engage with the threaded hole. The inner cavity of the swing block 5 expands, the support plate 401 moves downward to contact the switch 708 to start the motor 702. The motor 702 drives the spline shaft 706 to rotate through the gear set 704 and the spline block 705. The spline shaft 706 is threadedly connected to the positioning post 701. Thus, the spline shaft 706 moves upward, rotates and moves upward to connect with the threaded hole, achieving relative fixation between the tread block and the swing block 5. At the same time, during the upward movement of the spline shaft 706, the volume it occupies in the inner cavity of the swing block 5 decreases, and thus the volume of the inner cavity of the swing block 5 increases. Due to the relative fixation between the tread block and the swing block 5, the increased volume causes the gas to flow into the inner cavity of the swing block 5. Then, the support plate 401 moves downward and separates from the tread block. At this time, the tread block contacts the arc surface of the support frame 3, and the horizontal stripes on the arc surface of the support frame 3 effectively reduce the frictional force when the tread block moves during the calibration of the left and right center positions of the tread block; Calibrate the tread block. Rotate the screw 8. The screw 8 drives the push plate 903 to move backward through the pressure plate 901 and the base plate 902. The backward movement of the push plate 903 squeezes the inclination positioning block 501, causing the positioning block 501 to reset. When the positioning block 501 returns to the vertical state, the base plate 902 simultaneously fits on both sides of the support block 2 and the positioning block 501, thereby locking the angle of the positioning block 501. At the same time, the through hole 7071 communicates with the swing block 5, and the support spring 7072 will push the gas to flow back into the inner cavity of the swing block 5 through the piston 7073. The support plate 401 moves upward to fit with the tread block, and the screw 8 drives the pressure plate 901 to move backward to fit with the front and back of the tread block, locking the front and back positions of the tread block.

[0042] Although the embodiments of the present invention have been described, for those of ordinary skill in the art, changes and modifications can be made to the embodiments based on the understanding of the principles and spirit of the present invention to obtain other effects. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic tooling calibration device for the processing of tread blocks with threaded holes, characterized in that: It includes a base (1), a support block (2), a support frame (3), a support assembly (4), a swing block (5), a slide plate (6), an alignment assembly (7), a screw (8) and a pressing member (9). The two support blocks (2) are respectively connected to the front and rear sides of the upper surface of the base (1). The support frame (3) is connected to the upper side of the support block (2). The two support assemblies (4) are respectively connected to the opposite sides of the two support frames (3). The swing block (5) is connected between the two support frames (3). The slide plate (6) is connected to the upper side of the swing block (5). The alignment assembly (7) is connected to both sides of the slide plate (6). The screw (8) is connected to the lower side of the support frame (3). The two pressing members (9) are connected to both ends of the screw (8). When the support assembly (4) is pressed, the slide plate (6) drives the alignment assembly (7) to fit against the outer arc surface of the tread block. When the swing block (5) drives the slide plate (6) to rotate to a specified angle, the alignment assembly (7) is docked with the threaded hole. When the screw (8) rotates, the pressing member (9) drives the swing block (5) to rotate to a specified angle and then locks the tread block.

2. An automatic calibration device for tooling according to claim 1, characterized in that: The support assembly (4) includes a support plate (401), a push spring (402) and a connecting pipe (403). The support plate (401) is slidably connected to the inner cavity of the support frame (3). The left and right sides of the support plate (401) are vertical. The push spring (402) is connected between the support frame (3) and the support plate (401). The two ends of the connecting pipe (403) are respectively connected to the inner cavities of the support frame (3) and the swing block (5). When the slide plate (6) is not in contact with the tread block, the upper surface of the support plate (401) protrudes from the upper surface of the support frame (3).

3. An automatic tooling calibration device according to claim 2, characterized in that: The upper arc surface of the support plate (401) has the same curvature as the lower arc surface of the tread block. Longitudinal stripes are provided on the upper side of the support plate (401).

4. An automatic tooling calibration device according to claim 3, characterized in that: A positioning block (501) is connected to the lower end of the swing block (5), and the distance between the left and right sides of the positioning block (501) is equal to the distance between the left and right sides of the support block (2).

5. An automatic calibration device for tooling according to claim 3, characterized in that: The alignment component (7) includes a positioning post (701), a motor (702), a mounting bracket (703), a gear set (704), a spline block (705), a spline shaft (706), an adjusting member (707), and a switch (708). The positioning post (701) is connected to the sliding plate (6), the motor (702) is connected to the lower side of the sliding plate (6), the mounting bracket (703) is connected to the lower side of the outer surface of the motor (702), the input end of the gear set (704) is connected to the output end of the motor (702), the spline block (705) is connected to the mounting bracket (703), and the lower end of the spline block (705) is connected to the output end of the gear set (704). The spline shaft (706) is key-connected to the upper side of the spline block (705). An adjusting member (707) is connected to one side of the support frame (3) close to the swing block (5), and a switch (708) is connected to the inner cavity of the support frame (3). The switch (708) is electrically connected to the motor (702). The top of the positioning post (701) protrudes above the upper surface of the sliding plate (6), and a chamfer is provided at the top of the positioning post (701). Horizontal stripes are provided on the upper arc surface of the support frame (3).

6. An automatic calibration device for tooling according to claim 5, characterized in that: Threads are provided on the outer surface of the spline shaft (706). The spline shaft (706) is threadedly connected to the positioning post (701) and is also threadedly connected to a threaded hole.

7. An automatic calibration device for a tooling, as claimed in claim 5, wherein: The pressing member (9) includes a pressing plate (901), a base plate (902), and a pushing plate (903). The pressing plate (901) is connected to the screw rod (8), the base plate (902) is connected to the left and right sides of the front pressing plate (901), the pushing plate (903) is connected to the rear side of the base plate (902), and the angle between the pushing plate (903) and the base plate (902) is obtuse. The minimum distance value between the two base plates (902) is equal to the distance value between the left and right sides of the positioning block (501).

8. An automatic tooling calibration device according to claim 7, characterized in that: There is a gap between the pressing plate (901) and the pattern block when the two base plates (902) are respectively in contact with the left and right sides of the positioning block (501). The adjusting member (707) includes a through hole (7071), a support spring (7072), and a piston (7073). The through hole (7071) is provided on one side of the support block (2) close to the swing block (5), the support spring (7072) is connected in the through hole (7071), and the piston (7073) is connected to the side of the support spring (7072) close to the swing block (5). When the positioning block (501) is vertical, the through hole (7071) communicates with the inner cavity of the swing block (5).

9. A four-axis milling and grooving machine capable of multi-axis linkage, comprising a tooling automatic calibration device according to any one of claims 1-8 above, characterized in that: It further includes a four-axis machine tool (10), a chuck (11), and a collar (12). The chuck (11) is connected to the rear side of the four-axis machine tool (10), the collar (12) is connected to the front side of the chuck (11), a positioning strip (1201) is connected to the inner wall of the collar (12), the base (1) is arranged between the two positioning strips (1201), and the base (1) is connected to the collar (12) by screws.

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