A precision mechanical part cutting device

Abstract

The present application relates to the technical field of mechanical parts processing, and specifically relates to a precision mechanical part cutting device, which comprises a containing box, L-shaped vertical columns are fixed at both ends of the containing box, a clamping mechanism is fixed between the two L-shaped vertical columns, the clamping mechanism comprises two inclined positioning blocks, a fixed crossbeam is fixed between one end of the two positioning blocks, screw rods are rotatably connected to both ends of the fixed crossbeam, and a movable crossbeam is screw-connected between the two screw rods. In the present application, a plurality of pipes are inclinedly arranged between the fixed crossbeam and the movable crossbeam, the bottom end of the pipe contacts the mesh hole on the supporting plate, the electric push rod, the supporting plate and the rectangular frame provided with the laser cutting head are synchronously inclined, the inclination of the supporting plate causes the pipe to be inclined, the inclination of the rectangular frame causes the laser cutting head to be synchronously inclined with the pipe, the synchronous movement of the two laser cutting heads facilitates the cutting of the two ends of the pipe into mutually parallel inclined surfaces, and the efficiency of the pipe end surface cutting is improved.

Description

Technical Field

[0001] This invention relates to the field of mechanical parts processing technology, and specifically to a precision mechanical parts cutting processing device. Background Technology

[0002] In industrial applications, it is often necessary to weld metal tubes into different shapes. For example, the two ends of a square tube are cut into bevels, and then three cut square tubes are welded end to end to form a tripod (refer to the instruction manual). Figure 9 Furthermore, during the cutting of metal pipe ends, it is sometimes necessary to cut both ends of the pipe into parallel bevels. However, in the existing technology, when laser cutting heads are generally used to cut the ends of pipes, it is not easy to cut the ends of multiple pipes at the same time. Cutting the end face of the pipes into bevels one by one results in poor cutting efficiency. In addition, different types of pipes have different dimensions, and metal chips and dust are generated during the cutting process. Therefore, it is necessary to design a cutting processing device that can cut both ends of pipes at the same time, is applicable to pipes of different sizes, and can absorb cutting dust and chips. Summary of the Invention

[0003] To overcome the aforementioned technical problems, the present invention aims to provide a precision mechanical parts cutting and processing device. This device involves arranging multiple tubes at an angle between a fixed crossbeam and a movable crossbeam, with the bottom end of each tube contacting a mesh on a support plate. An electric push rod moves the support plate and a rectangular frame equipped with a laser cutting head in a synchronized tilting motion. The tilting of the support plate causes the tubes to tilt, and the tilting of the rectangular frame causes the laser cutting head to tilt synchronously with the tubes. The synchronized movement of the two laser cutting heads facilitates the cutting of the two ends of the tubes into parallel bevels. One laser cutting head can be used to cut one end of the tube, and then the other laser cutting head can be used after the support plate rotates and tilts in the opposite direction. This achieves the cutting of non-parallel bevels at both ends of the tube. Furthermore, the square tube can be replaced with a round tube, a square column, or a cylindrical tube for cutting, thus enabling simultaneous parallel bevel cutting of the two ends of multiple tubes, which improves the efficiency of tube end face cutting.

[0004] The objective of this invention can be achieved through the following technical solutions:

[0005] A precision machining device for mechanical parts includes a receiving box with L-shaped columns fixed at both ends. A clamping mechanism is fixed between the two L-shaped columns, comprising two inclined positioning blocks. A fixed crossbeam is fixed between one end of each positioning block. Screws are rotatably connected to both ends of the fixed crossbeam, and a movable crossbeam is screwed between the two screws. Two support columns are fixed to the inner bottom surface of the receiving box, and a support plate is rotatably connected between the tops of the two support columns. A second support column is fixed to the inner bottom surface of the receiving box, and a cutting mechanism is rotatably connected to the top of the second support column. The cutting mechanism includes a rectangular frame rotatably connected to the second support column. A lead screw is rotatably connected inside the rectangular frame, and a moving block is screwed to the outside of the lead screw. Electric push rods are fixed to the top and bottom surfaces of the moving block. A laser cutting head is fixed to the output end of the electric push rod. A transmission rod is driven between the rectangular frame and the support plate. A driving mechanism for driving the transmission rod is fixed to the inner bottom surface of the receiving box.

[0006] Furthermore, the driving mechanism includes a guide plate fixedly connected to the inner bottom surface of the receiving box. The guide plate is arranged at an angle, and a movable seat is rolledly connected inside the guide plate. An electric push rod three is fixedly mounted on the top surface of the movable seat, and the output end of the electric push rod three is fixedly connected to the bottom surface of the transmission rod.

[0007] Furthermore, both ends of the movable seat are rotatably connected to rollers, a servo motor for driving the rollers to rotate is fixed inside the movable seat, and a limiting plate that is slidably connected to the guide plate is fixed on both sides of the movable seat.

[0008] Furthermore, the top end of the transmission rod is rotatably connected to the rectangular frame, the bottom end of the transmission rod is fixed with a connecting shaft, and the connecting shaft is rotatably connected to the support plate.

[0009] Furthermore, the tray has a rectangular suction cavity inside, a mesh opening on the top surface of the tray that communicates with the rectangular suction cavity, and connecting pipes that communicate with the rectangular suction cavity are fixed at both ends of the tray. The connecting pipes are connected to an external vacuum cleaner via a flexible hose. A stop block is detachably fixed on one side of the tray.

[0010] Furthermore, the tops of both the first and second support columns are bent, the tray and the rectangular frame are tilted, a section of the rectangular frame is fixed with a second motor, and the output end of the second motor is fixedly connected to a lead screw.

[0011] Furthermore, both ends of the fixed crossbeam are fixedly connected to the corresponding L-shaped columns, and motors are fixed to the outer sides of both ends of the fixed crossbeam. The output end of the motors is fixedly connected to the corresponding screws.

[0012] Furthermore, an electric push rod is embedded and fixed inside the positioning block, and a circular plate is fixed to the output end of the electric push rod.

[0013] Furthermore, both ends of the receiving box can be detachably fixed with door panels, the bottom of the receiving box is fixed with two support legs, the inner bottom surface of the receiving box is inclined, and a vibration motor is fixed at the bottom of the receiving box.

[0014] The beneficial effects of this invention are:

[0015] 1. By inserting multiple square tubes between the fixed and movable crossbeams, with the bottom surface of the square tubes abutting the top surface of the square support plate, the output end of electric push rod one moves the circular plate towards the direction tubes, confining the multiple square tubes within the space between the fixed crossbeam, movable crossbeam, and circular plate. The output end of electric push rod three moves the transmission rod upwards, and the top of the transmission rod pushes the rectangular frame to rotate and tilt on support column one. The transmission rod, through the connecting shaft, causes the support plate to rotate and tilt on support column one (refer to the instruction manual). Figure 1-2 In this system, the rectangular frame and the support plate rotate at the same angle. Multiple square tubes are arranged at an angle on the support plate. Motor 1 drives a screw to rotate, moving the movable crossbeam towards the fixed crossbeam. The fixed and movable crossbeams then work together to fix the adjusted square tubes. The output end of electric push rod 2 moves the laser cutting head to the desired cutting height on the tube. Then, motor 2 drives a lead screw to rotate, causing a moving block to move along the rectangular frame with the two electric push rods 2. This causes the laser cutting head to move synchronously along the rectangular frame to cut the ends of the tubes. The synchronous movement of the two laser cutting heads results in multiple tubes having the same bevel at both ends (refer to the instruction manual). Figure 8 In addition to A), the square tube can be replaced with a round tube or a square column or a round column, which can also be cut, thereby realizing the parallel bevel cutting of the two ends of multiple pipe fittings at the same time, which is beneficial to improving the efficiency of pipe fitting end face cutting.

[0016] 2. By activating one of the laser cutting heads, only the top of the pipe is cut into a bevel. At this time, the support plate rotates to a straight position. Refer to the instruction manual for the status of the pipe on the support plate. Figure 8 Then, the output end of the electric actuator retracts, causing the support plate and rectangular frame to rotate and tilt in the opposite direction. Similarly, the laser cutting head at the top of the rectangular frame moves along the rectangular frame to perform a reverse secondary cut on the already cut end face of the pipe fitting, thus cutting one end of the pipe fitting into a triangular tip (refer to the instruction manual). Figure 8 (C) By cutting the pipe fitting into state B as described above, after the pallet rotates and tilts in the opposite direction, the laser cutting head at the bottom of the rectangular frame cuts separately, thereby causing the bottom end of the pipe fitting to be obliquely cut in the opposite direction to the inclined surface at the top of the pipe fitting, achieving a non-parallel oblique cut at both ends of the pipe fitting (refer to the instruction manual). Figure 8In addition, during the process of cutting the B-state pipe into the D-state pipe, the laser cutting heads at the top and bottom of the rectangular frame can move synchronously to cut the bottom of the B-state pipe into a bevel while simultaneously cutting the top of the pipe into a triangular tip (refer to the instruction manual). Figure 8 (E) This is beneficial to improving the efficiency of functional cutting and diversified cutting in this application;

[0017] 3. By providing a rectangular suction chamber inside the pallet and a mesh opening on the top surface of the pallet that communicates with the rectangular suction chamber, an external vacuum cleaner draws air into the rectangular suction chamber, which in turn causes the mesh opening to draw air from the bottom of the pipe. During the cutting process, some debris and dust from the top of the pipe are drawn into the mesh opening from the hollow part of the pipe itself. Debris and dust from the bottom of the pipe can also be drawn into the mesh opening, which helps to ensure a clean and tidy cutting environment. Furthermore, the pallet, clamping mechanism, and cutting mechanism in this application are all in an inclined state, which allows the pipe on the pallet to be cut in an inclined state, making it easy for the cut waste to fall directly back into the collection box for collection.

[0018] 4. The motor drives the screw to rotate, allowing the movable crossbeam to move outside the fixed crossbeam, thus adjusting the gap between the fixed and movable crossbeams. The output end of the electric push rod can move the circular plate into the space between the fixed and movable crossbeams, making it easier to place pipes of different sizes and quantities in the space between the fixed and movable crossbeams for cutting operations. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1-2 This is a schematic diagram of the overall structure of the present invention, showing multiple square tubes placed on it from different perspectives.

[0021] Figure 3 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the receiving box and clamping mechanism in this invention;

[0023] Figure 5 This is a schematic diagram of the clamping mechanism in this invention;

[0024] Figure 6 This is a schematic diagram of the pallet, cutting mechanism, and transmission rod structure in this invention;

[0025] Figure 7 This is a schematic diagram of the drive mechanism structure in this invention;

[0026] Figure 8 This is a schematic diagram of various structural states in which the end face of the square tube is cut into an oblique surface in this invention;

[0027] Figure 9 This is a schematic diagram of the structure of the square tube after cutting and welding into a tripod end in this invention.

[0028] In the diagram: 100, receiving box; 110, L-shaped column; 120, support column one; 130, support column two; 200, clamping mechanism; 210, positioning block; 211, electric push rod one; 220, fixed crossbeam; 221, motor one; 230, screw; 240, movable crossbeam; 300, pallet; 310, stop block; 400, cutting mechanism; 410, rectangular frame; 411, motor two; 420, lead screw; 430, electric push rod two; 440, laser cutting head; 500, transmission rod; 510, connecting shaft; 600, drive mechanism; 610, guide plate; 620, movable seat; 621, roller; 622, limit plate; 630, electric push rod three. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figure 1-9 As shown, a precision machining device for mechanical parts includes a receiving box 100. L-shaped columns 110 are fixed at both ends of the receiving box 100. A clamping mechanism 200 is fixed between the two L-shaped columns 110. The clamping mechanism 200 includes two inclined positioning blocks 210. A fixed crossbeam 220 is fixed between one end of the two positioning blocks 210. Screws 230 are rotatably connected to both ends of the fixed crossbeam 220. A movable crossbeam 240 is screwed between the two screws 230. Two support columns 120 are fixed to the inner bottom surface of the receiving box 100. A support plate 300 is rotatably connected between the tops of the two support columns 120. A second support column 130 is fixed to the inner bottom surface of the container 100. A cutting mechanism 400 is rotatably connected to the top of the second support column 130. The cutting mechanism 400 includes a rectangular frame 410 rotatably connected to the second support column 130. A lead screw 420 is rotatably connected inside the rectangular frame 410. A moving block is screwed to the outside of the lead screw 420. An electric push rod 430 is fixed to both the top and bottom surfaces of the moving block. A laser cutting head 440 is fixed to the output end of the electric push rod 430. A transmission rod 500 is connected between the rectangular frame 410 and the tray 300. A drive mechanism 600 for driving the transmission rod 500 to move is fixed to the inner bottom surface of the container 100.

[0031] The drive mechanism 600 includes a guide plate 610 fixedly connected to the inner bottom surface of the receiving box 100. The guide plate 610 is arranged at an angle, and a movable seat 620 is rolled inside the guide plate 610. An electric push rod 630 is fixedly mounted on the top surface of the movable seat 620. The output end of the electric push rod 630 is fixedly connected to the bottom surface of the transmission rod 500. The angled arrangement of the guide plate 610 facilitates the tilting of the entire drive mechanism 600, adapting to the rotation of the driving rectangular frame 410 and the pallet 300. The movable seat 620 can rotate on the guide plate 610. The internal rolling adaptation electric push rod 630 moves laterally as it pushes the rectangular frame 410 and the support plate 300 to rotate; both ends of the movable seat 620 are rotatably connected to rollers 621, and a servo motor for driving the rollers 621 to rotate is fixed inside the movable seat 620. Both sides of the movable seat 620 are fixed with limiting plates 622 that are slidably connected to the guide plate 610, so that the movable seat 620 can move along the guide plate 610 to allow the electric push rod 630 to push the transmission rod 500 at different positions.

[0032] The top end of the transmission rod 500 is rotatably connected to the rectangular frame 410, and the bottom of the transmission rod 500 is fixed with a connecting shaft 510. The connecting shaft 510 is rotatably connected to the support plate 300, so that the transmission rod 500 can rotate and tilt synchronously with the rectangular frame 410 and the support plate 300. A rectangular suction cavity is opened inside the support plate 300, and a mesh opening communicating with the rectangular suction cavity is opened on the top surface of the support plate 300. Connecting pipes communicating with the rectangular suction cavity are fixed at both ends of the support plate 300. The connecting pipes are connected and fixed to an external vacuum cleaner through a flexible hose. A stop block 310 is detachably fixed on one side of the support plate 300, so that the support plate 300 can rotate and tilt synchronously with the rectangular frame 410 and the support plate 300. The mesh hole draws airflow into the interior of the pipe, causing smoke and debris to be absorbed and collected, ensuring a clean and tidy working environment. The tops of support column 120 and support column 2130 are both bent, and the support plate 300 and rectangular frame 410 are both tilted. A section of rectangular frame 410 is fixed with motor 2 411. The output end of motor 2 411 is fixedly connected to lead screw 420. Motor 2 411 rotates the lead screw 420 in both directions, allowing the moving block to move back and forth along the lead screw 420, thereby enabling the laser cutting head 440 to move to different positions outside the rectangular frame 410 for cutting.

[0033] Both ends of the fixed crossbeam 220 are fixedly connected to the corresponding L-shaped columns 110. Motors 221 are fixed to the outer sides of both ends of the fixed crossbeam 220. The output end of each motor 221 is fixedly connected to a corresponding screw 230. The motor 221 rotates the screw 230, allowing the movable crossbeam 240 to move outside the fixed crossbeam 220, thus adjusting the gap between the fixed crossbeam 220 and the movable crossbeam 240. This facilitates the placement of pipes of different sizes and quantities for cutting operations within the space between the fixed crossbeam 220 and the movable crossbeam 240. The inner... An electric push rod 211 is embedded and fixed in the part. A circular plate is fixed to the output end of the electric push rod 211. The electric push rod 211, along with the circular plate, restricts the tilt of the pipe from the side. Door panels are detachably fixed to both ends of the receiving box 100. Two support legs are fixed to the bottom of the receiving box 100. The inner bottom surface of the receiving box 100 is inclined. A vibration motor is fixed to the bottom of the receiving box 100. The door panels can be removed to facilitate cleaning of the debris inside the receiving box 100. The inclined surface facilitates the vibration of the receiving box 100 with the vibration motor, so that the waste can be collected inside the receiving box 100.

[0034] Working principle: In use, when both ends of a square tube need to be cut into parallel bevels, multiple tube fittings are inserted between the fixed crossbeam 220 and the movable crossbeam 240, with the bottom end of the fittings abutting the surface of the support plate 300. The output end of the electric push rod 211 moves the circular plate towards the direction of the tube, confining the multiple square tubes in the space between the fixed crossbeam 220, the movable crossbeam 240, and the circular plate, preventing longitudinal skewing of the multiple tube fittings. Then, the electric push rod 630 moves the transmission rod 500 upwards, and the top of the transmission rod 500 pushes the rectangular frame 410 to rotate and tilt on the support column 120. The transmission rod 500, through the connecting shaft 510, causes the support plate 300 to rotate and tilt on the support column 120 (refer to the instruction manual). Figure 1-2 In this process, the rectangular frame 410 and the support plate 300 rotate at the same angle. Multiple square tubes are arranged at an angle on the support plate 300. Then, motor 221 drives screw 230 to rotate, causing the movable crossbeam 240 to move towards the fixed crossbeam 220. This allows the fixed crossbeam 220 and the movable crossbeam 240 to cooperate in fixing the multiple square tubes after adjustment. The output end of electric push rod 430 moves the laser cutting head 440 to the required cutting height on the tube. Then, motor 411 drives lead screw 420 to rotate, causing the moving block to move along the rectangular frame 410 with the two electric push rods 430. This causes the laser cutting head 440 to move synchronously along the rectangular frame 410 to cut the ends of the tubes. The synchronous movement of the two laser cutting heads 440 will cut the ends of multiple tubes into the same bevel (refer to the instruction manual). Figure 8In step A), during the cutting process, an external vacuum cleaner draws airflow into the rectangular suction chamber, which in turn causes the mesh to draw airflow from the bottom of the pipe. During the cutting process, some debris and dust from the top of the pipe are drawn into the mesh through the hollow structure of the pipe itself. Debris and dust from the bottom of the pipe can also be drawn into the mesh, which helps to ensure a clean and tidy cutting environment. When it is necessary to cut the two ends of the pipe into bevels facing different directions, the pipe is then cut into the shape specified in the instruction manual. Figure 8 During state A, the laser cutting head 440 at the bottom of the rectangular frame 410 does not work. The laser cutting head 440 at the top of the rectangular frame 410 cuts the top of the pipe separately, as per the instruction manual. Figure 8 In state B of the pipe fitting, the movable crossbeam 240 is slightly moved away from the fixed crossbeam 220, so that the gap between the movable crossbeam 240 and the fixed crossbeam 220 is sufficient for the pipe fitting to move up and down. At this time, the output end of the electric push rod 630 retracts, causing the support plate 300 and the rectangular frame 410 to rotate and tilt in the opposite direction. Then, the laser cutting head 440 at the bottom of the rectangular frame 410 moves to cut the bottom end of the pipe fitting into a bevel, as per the instruction manual. Figure 8 State D of the central pipe fitting.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The above description is merely an example and illustration of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

Claims

1. A precision machining device for machined mechanical parts, comprising a receiving box (100), characterized in that, Both ends of the receiving box (100) are fixed with L-shaped columns (110), and a clamping mechanism (200) is fixed between the two L-shaped columns (110). The clamping mechanism (200) includes two inclined positioning blocks (210). An electric push rod (211) is embedded and fixed inside the positioning block (210). A circular plate is fixed at the output end of the electric push rod (211). A fixed crossbeam (220) is fixed between one end of the two positioning blocks (210). Both ends of the fixed crossbeam (220) are rotatably connected with screws (230). A movable crossbeam (240) is screwed between the two screws (230). Two support columns (120) are fixed on the inner bottom surface of the receiving box (100). A tray (300) is rotatably connected between the tops of the two support columns (120). A support column (130) is fixed on the inner bottom surface of the receiving box (100). A cutting mechanism (400) is rotatably connected to the top of the second (130). The cutting mechanism (400) includes a rectangular frame (410) rotatably connected to the second support column (130). A lead screw (420) is rotatably connected inside the rectangular frame (410). A moving block is screwed to the outside of the lead screw (420). An electric push rod (430) is fixed to the top and bottom surfaces of the moving block. A laser cutting head (440) is fixed to the output end of the electric push rod (430). A transmission rod (500) is connected between the rectangular frame (410) and the tray (300). The top of the transmission rod (500) is rotatably connected to the rectangular frame (410). A connecting shaft (510) is fixed to the bottom of the transmission rod (500). The connecting shaft (510) is rotatably connected to the tray (300). A driving mechanism (600) for driving the transmission rod (500) to move is fixed to the inner bottom surface of the receiving box (100). The top ends of both support column one (120) and support column two (130) are bent. Both the tray (300) and the rectangular frame (410) are tilted. One end of the rectangular frame (410) is fixed with motor two (411). The output end of motor two (411) is fixedly connected to lead screw (420). The drive mechanism (600) includes a guide plate (610) fixedly connected to the inner bottom surface of the receiving box (100). The guide plate (610) is tilted. A movable seat (620) is rolled inside the guide plate (610). An electric push rod three (630) is fixed on the top surface of the movable seat (620). The output end of the electric push rod three (630) is fixedly connected to the bottom surface of the transmission rod (500).

2. The precision machining device for mechanical parts according to claim 1, characterized in that, Rollers (621) are rotatably connected to both ends of the movable seat (620). A servo motor for driving the rollers (621) to rotate is fixed inside the movable seat (620). Limiting plates (622) that are slidably connected to the guide plate (610) are fixed on both sides of the movable seat (620).

3. The precision machining device for mechanical parts according to claim 1, characterized in that, The tray (300) has a rectangular suction cavity inside. The top surface of the tray (300) has a mesh that communicates with the rectangular suction cavity. Both ends of the tray (300) are fixed with connecting pipes that communicate with the rectangular suction cavity. The connecting pipes are connected to an external vacuum cleaner through a hose. A stop block (310) is detachably fixed on one side of the tray (300).

4. The precision machining device for mechanical parts according to claim 1, characterized in that, The two ends of the fixed crossbeam (220) are respectively fixedly connected to the corresponding L-shaped column (110). The outer sides of both ends of the fixed crossbeam (220) are fixed with motor one (221). The output end of the motor one (221) is fixedly connected to the corresponding screw (230).

5. A precision machining device for mechanical parts according to claim 1, characterized in that, Both ends of the receiving box (100) are detachably fixed with door panels. The bottom of the receiving box (100) is fixed with two support legs. The inner bottom surface of the receiving box (100) is inclined. The bottom of the receiving box (100) is fixed with a vibration motor.

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