Welding device for machining parts of numerical control machine tool

Abstract

The invention discloses a welding device for numerical control machine tool part machining, and relates to the technical field of part welding machining, the welding device comprises a rack, a mounting frame, a hydraulic cylinder and a lifting plate, the bottom end of the lifting plate is connected with a transverse moving mechanism, a welding mechanism is arranged at the bottom end of the transverse moving mechanism, and supporting frames are symmetrically welded to the top end of the rack. By means of the overturning mechanism, 180-degree rapid and accurate overturning of the supporting frame on parts is achieved, after welding is completed, automatic discharging is completed through the inertia force and gravity action in the overturning process and cooperation of the overturning mechanism and the discharging groove, scratches and positioning errors caused by manual intervention are eliminated, and the welding efficiency is improved; rapid separation of the clamping plate and the clamping groove is achieved through the anti-moving mechanism, so that obstruction to overturning of the part is prevented, rapid clamping of the clamping plate and the clamping groove is achieved after overturning of the part is completed, rigid locking of the supporting shaft in the non-overturning stage can be achieved, tiny displacement caused by high-frequency vibration in the welding process is resisted, and the welding quality is improved. And the welding precision is ensured.

Description

Technical Field

[0001] This invention relates to the field of component welding technology, specifically a welding device for CNC machine tool component processing. Background Technology

[0002] Welding equipment refers to the equipment required to realize the welding process. Welding equipment includes welding machines, welding process equipment and welding auxiliary tools. The main types of welding equipment are electric welding machines, flame welding equipment and other welding equipment. In the process of processing some CNC machine tool parts, welding equipment is required for welding and fixing.

[0003] According to CN116604242A, an industrial welding robot for plate welding includes a U-shaped worktable. A first support plate is fixed to one side of the worktable, and a second support plate is fixed to the side of the first support plate facing the worktable. A slot is opened on the second support plate, and a movable component is slidably installed in the slot. A transmission component is slidably installed in the movable component, and a welding head is fixed to the end of the transmission component. A fourth transmission rod passes through a through slot opened on the transmission component, and limiters are rotatably installed on both sides of the fourth transmission rod.

[0004] Regarding the aforementioned solutions, although the worm gear transmission can achieve the flipping operation, the high-frequency vibration generated during the welding process makes the shaft, which lacks a rigid locking mechanism, prone to slight deflection displacement, thus affecting the welding accuracy of the parts. Furthermore, the parts still need to be manually removed after welding, increasing the risk of burns. Summary of the Invention

[0005] The purpose of this invention is to provide a welding device for machining CNC machine tool parts, so as to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a welding device for machining CNC machine tool parts, comprising a frame, a mounting frame, a hydraulic cylinder and a lifting plate, the bottom end of the lifting plate being connected to a transverse mechanism, the bottom end of the transverse mechanism being provided with a welding mechanism for welding parts, the top end of the frame being symmetrically welded with support frames, and each of the two support frames being provided with a positioning mechanism on the side close to each other. The support frame is internally provided with a flipping mechanism for automatic unloading of parts. The flipping mechanism includes a toothed plate frame symmetrically welded to the surface of the lifting plate and a support shaft connected to the support frame through a bearing. The surface of the support shaft is located inside the toothed plate and is fitted with a ratchet that forms a locking structure with the inclined block. The rear end of the frame is provided with a feeding chute for parts to pass through; The inner side of the support frame is provided with an anti-shift mechanism to suppress minor deviations. The anti-shift mechanism includes helical tooth blocks welded at equal intervals to the front end of the tooth plate frame and a rotating shaft rotatably connected inside the support frame. A disc for driving the lateral movement of the card plate is fixed at the end of the rotating shaft away from the helical gear. The surface of the support shaft is symmetrically provided with slots that form a locking structure with the card plate.

[0007] Preferably, one end of the support shaft is welded to the support frame, and the rear end of the toothed plate frame is engaged with a toothed disc sleeved on the outside of the support shaft. The toothed disc is used to drive the ratchet to rotate, and the ratchet is used to make the support shaft rotate synchronously.

[0008] Preferably, a slidable locking block is slidably connected to one side of the inside of the gear disc to enable the gear disc and ratchet to move synchronously. A symmetrically arranged support spring is connected between the slid locking block and the gear disc, and the support spring is used to realize the automatic reset of the slid locking block.

[0009] Preferably, the front end of the helical tooth block is engaged with a helical gear that is slidably connected to the surface of the rotating shaft so as to make the rotating shaft rotate. A locking rod is welded to the surface of the annular disk, and a locking frame that forms a locking structure with the locking rod is welded to one side of the tooth plate frame. When the locking frame and the locking rod are engaged, they are used to limit the rotation of the shaft.

[0010] Preferably, a torsion spring for automatically resetting the rotating shaft is connected between the disc and the support frame. A limiting plate for supporting and guiding the card plate is welded to one side of the support frame, and a card plate is slidably connected inside the limiting plate. A linkage plate is rotatably connected between the card plate and the disc so that the card plate moves with the disc. The card plate and the card slot cooperate to achieve rigid locking of the support shaft.

[0011] Preferably, the surface of the rotating shaft is symmetrically provided with support bars, and the inner side of the helical gear is symmetrically provided with support grooves that form a sliding structure with the support bars. The surface of the rotating shaft is welded with an annular disk, and a telescopic spring for resetting the helical gear is connected between the annular disk and the helical gear.

[0012] Preferably, the frame has an internal cavity communicating with the feeding trough, and a movable collection box is provided at the bottom of the inner side of the frame.

[0013] Preferably, the mounting bracket is welded to the top of the frame, and the hydraulic cylinder is installed through the top of the mounting bracket to drive the lifting plate to rise and fall. The bottom end of the hydraulic cylinder is equipped with a lifting plate that is slidably connected to the mounting bracket, and the lifting plate is used to stably support the transverse movement mechanism. The top of the mounting bracket is provided with guide cylinders at both the front and rear ends of the hydraulic cylinder, and the guide cylinders are slidably connected with guide rods welded to the lifting plate.

[0014] Preferably, the welding mechanism includes a welding torch mounted at the bottom of the transverse mechanism and a welding machine body mounted at the rear end of the mounting frame, and a welding cable is connected between the welding torch and the welding machine body.

[0015] Preferably, the positioning mechanism is used to stably support the component. The positioning mechanism includes a support frame movably connected to the support frame, and an electric push rod for driving the positioning frame to rise and fall is installed through the top of the support frame. The bottom end of the electric push rod is provided with a positioning frame slidably connected to the support frame. The positioning frame cooperates with the support frame to clamp and position the component. The rear end of the support frame is welded with a stop rod for abutting against the component. The positioning frame includes a positioning plate and rods symmetrically welded to the top of the positioning plate, and the rods are slidably connected to the support frame.

[0016] Compared with the prior art, the beneficial effects of the present invention are: This welding device for CNC machine tool parts processing uses a hydraulic cylinder to drive the lifting plate's upward and reset motion, which in turn drives a flipping mechanism and an anti-shifting mechanism. The flipping mechanism enables the support frame to quickly and accurately flip the parts 180° for multi-sided welding. It also utilizes the inertia and gravity during the flipping process to automatically unload the parts, eliminating the risk of burns, scratches, and positioning errors caused by manual intervention. The synchronously driven anti-shifting mechanism uses a dynamic locking mechanism with a clamping plate and slot to form a rigid support lock during the non-flipping phase, effectively suppressing micro-displacement caused by high-frequency vibration and ensuring welding accuracy. The integrated design of the single hydraulic system improves energy efficiency and reduces structural space compared to traditional multi-drive solutions, avoiding multi-system coordination errors and comprehensively improving welding efficiency and safety. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram from a first perspective of the present invention; Figure 2 This is a three-dimensional structural diagram from a second perspective of the present invention; Figure 3 This is a three-dimensional structural diagram of the present invention in its non-operating state; Figure 4 This is a three-dimensional structural diagram of the flipping mechanism and the anti-displacement mechanism of the present invention; Figure 5 This is a three-dimensional structural diagram of the flipping mechanism of the present invention; Figure 6 This is a three-dimensional structural diagram of the ratchet and support shaft of the present invention; Figure 7 This is a partial three-dimensional cross-sectional structural diagram of the flipping mechanism of the present invention; Figure 8 This is a three-dimensional structural diagram of the anti-displacement mechanism of the present invention; Figure 9 This is an exploded perspective view of the helical gear disk and rotating shaft of the present invention; Figure 10 This is a three-dimensional structural diagram of the present invention with the card plate and card slot separated. Figure 11This is a three-dimensional structural diagram of the card holder and card rod in the engaged state of the present invention; Figure 12 This is a three-dimensional structural diagram of the positioning mechanism of the present invention; Figure 13 This is a schematic diagram of the main structure of the present invention.

[0018] In the diagram: 1. Frame; 2. Mounting bracket; 3. Hydraulic cylinder; 4. Lifting plate; 5. Lateral movement mechanism; 6. Welding mechanism; 601. Welding torch; 602. Welding cable; 603. Welding machine body; 7. Tilting mechanism; 701. Toothed plate frame; 702. Toothed disc; 703. Angled locking block; 704. Support spring; 705. Ratchet; 706. Support shaft; 8. Anti-slip mechanism; 801. Angled toothed block; 802. 803. Helical gear; 804. Telescopic spring; 805. Annular disc; 806. Rotating shaft; 807. Torsion spring; 808. Disc; 809. Linkage plate; 810. Card slot; 811. Card rod; 812. Card frame; 813. Limiting plate; 9. Positioning mechanism; 901. Support frame; 902. Electric push rod; 903. Positioning frame; 904. Abutment rod; 10. Discharge chute; 11. Support frame. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-4 and Figure 12 , Figure 13 The present invention provides a technical solution: a welding device for processing CNC machine tool parts, including a frame 1, a mounting frame 2 welded to the top of the frame 1, a hydraulic cylinder 3 for driving the lifting plate 4 to rise and fall through the top of the mounting frame 2, a lifting plate 4 slidably connected to the mounting frame 2 installed at the bottom of the hydraulic cylinder 3, the lifting plate 4 for stably supporting the transverse movement mechanism 5, the bottom of the lifting plate 4 being connected to the transverse movement mechanism 5, a welding mechanism 6 being provided at the bottom of the transverse movement mechanism 5 to realize the welding of parts, and support frames 11 symmetrically welded to the top of the frame 1, and a positioning mechanism 9 for stably supporting parts being provided on the side of the two support frames 11 that are close to each other; Specifically, the positioning mechanism 9 is used to support and position the components after docking. At this time, the hydraulic cylinder 3 is activated, which drives the lifting plate 4 and the welding mechanism 6 to move down to the designated position. Then, the welding mechanism 6 can be used to weld the components. At the same time, the welding gun 601 is moved laterally by the transverse mechanism 5 to achieve full welding on one side.

[0021] exist Figures 1-8 and Figure 10 , Figure 12 , Figure 13 In the middle: The support frame 11 is internally provided with a flipping mechanism 7 for turning over the parts. The flipping mechanism 7 includes a toothed plate frame 701 symmetrically welded to the surface of the lifting plate 4 and a support shaft 706 connected to the support frame 11 through a bearing. One end of the support shaft 706 is welded to the support frame 901. The rear end of the toothed plate frame 701 is engaged with a toothed disc 702 sleeved on the outside of the support shaft 706. The toothed disc 702 is used to drive the ratchet 705 to rotate. The surface of the support shaft 706 is located inside the toothed disc 702 and is fitted with a ratchet 705 that forms a locking structure with the inclined block 703 so that the support shaft 706 rotates synchronously.

[0022] Specifically, the hydraulic cylinder 3 drives the lifting plate 4 to rise and reset. When the clamping plate 809 separates from the clamping slot 810 and the toothed plate meshes with the toothed disc 702, the toothed disc 702 is meshed with the toothed plate frame 701, and the clamping block is engaged with the ratchet 705 under the action of the support spring 704. This causes the toothed disc 702, ratchet 705, and support shaft 706 to rotate synchronously, thereby causing the support frame 901 to drive the parts to rotate quickly and accurately by 180° to achieve multi-sided welding. After welding is completed, the positioning frame 903 is separated from the parts, and the automatic unloading is completed by using the inertial force and gravity during the rotation process and the cooperation with the unloading groove 10. The above method not only avoids the workpiece scratches and positioning deviations that may be caused by traditional manual turning, but also improves the operating efficiency of the equipment. At the same time, it completely avoids the risk of manual contact with high-temperature welded parts, saving labor costs and improving safety.

[0023] exist Figure 7 In the middle: A slidable locking block 703 is slidably connected to one side inside the gear disk 702 to make the gear disk 702 and the ratchet 705 move synchronously. A symmetrically arranged support spring 704 is connected between the slid locking block 703 and the gear disk 702. The support spring 704 is used to realize the automatic reset of the slid locking block 703.

[0024] Specifically, since the inclined block 703 and the gear plate 702 are elastically connected through the support spring 704, when the hydraulic cylinder 3 drives the lifting plate 4 and the gear plate to move downward, the gear plate 702 drives the inclined block 703 to rotate around the ratchet 705, so that the ratchet 705 and the support shaft 706 are in a stationary state.

[0025] exist Figures 1-3 In the middle: The rear end of the frame 1 is provided with a feeding groove 10 for parts to pass through, and the inside of the frame 1 is provided with a cavity communicating with the feeding groove 10. A movable collection box is provided at the bottom of the inner side of the frame 1.

[0026] Specifically, when the parts are flipped and unloaded, the parts are guided by the unloading chute 10 so that the parts can slide off.

[0027] exist Figures 1-5 , Figures 8-11 and Figure 13 In the middle: The inner side of the support frame 11 is provided with an anti-displacement mechanism 8 for suppressing small deflection displacement. The anti-displacement mechanism 8 includes helical tooth blocks 801 welded at equal intervals to the front end of the tooth plate frame 701 and a rotating shaft 805 rotatably connected inside the support frame 11. The front end of the helical tooth blocks 801 is meshed with a helical gear 802 slidably connected to the surface of the rotating shaft 805 so that the rotating shaft 805 can rotate. A locking rod 811 is welded to the surface of the annular disk 804. A locking frame 812 is welded to one side of the tooth plate frame 701 to form a locking structure with the locking rod 811. When the locking frame 812 is locked with the locking rod 811, it is used to limit the rotation of the rotating shaft 805.

[0028] Specifically, during the process of the hydraulic cylinder 3 driving the lifting plate 4 to rise and reset, the toothed plate frame 701 and the helical tooth block 801 move upward synchronously, so that the helical tooth block 801 meshes with the helical gear 802. Since the helical tooth block 801 and the helical gear 802 are meshed and connected, the helical gear 802, the rotating shaft 805 and the disc 807 rotate clockwise synchronously. When the helical tooth block 801 and the helical gear 802 separate, the clamp 812 and the clamp rod 811 engage. When the toothed plate frame 701 continues to move upward, the clamp plate 809 and the clamp groove 810 are kept separated through the cooperation of the clamp 812 and the clamp rod 811.

[0029] exist Figures 1-6 , Figures 8-11 and Figure 13 In the middle section: A disc 807 for driving the lateral movement of the clamping plate 809 is fixedly connected to one end of the rotating shaft 805 away from the helical gear 802. A torsion spring 806 for automatically resetting the rotating shaft 805 is connected between the disc 807 and the support frame 11. A limiting plate 813 for supporting and guiding the clamping plate 809 is welded to one side of the support frame 11. The clamping plate 809 is slidably connected inside the limiting plate 813. A linkage plate 808 is rotatably connected between the clamping plate 809 and the disc 807 so that the clamping plate 809 moves with the disc 807. The surface of the support shaft 706 is symmetrically provided with a locking groove 810 that forms a locking structure with the clamping plate 809. The clamping plate 809 and the locking groove 810 cooperate to achieve rigid locking of the support shaft 706.

[0030] Specifically, when the disc 807 rotates clockwise, the clamping plate 809 is linked to the disc 807 through the linkage plate 808 and slidably connected to the support frame 11 through the limiting plate 813. This causes the linkage plate 808 to drive the clamping plate 809 out of the slot 810, preventing obstruction to the flipping operation of the parts. After the parts are precisely flipped 180°, the clamping frame 812 separates from the clamping rod 811. Since the disc 807 and the support frame 11 are elastically connected through the torsion spring 806, the rotating shaft 805 and the disc 807 are quickly and automatically reset under the action of the torsion spring 806, and the clamping plate 809 engages with the slot 810. This is used to achieve rigid locking of the support shaft 706 during the non-flipping stage, so as to resist the small deflection displacement caused by high-frequency vibration during the welding process, and ensure welding accuracy. In addition, the single hydraulic cylinder 3 drive combined with mechanical locking reduces the energy consumption of continuous pressure holding by multiple drive schemes. The lifting plate 4 is driven by the hydraulic cylinder 3 to move upward and reset, which in turn drives the anti-slip mechanism 8 and the flipping mechanism 7. Compared with the drive scheme with multiple drive components, the single drive component reduces the overall energy consumption, improves the structural compactness by reducing the number of drive components, eliminates the interference risk caused by the cross wiring of multiple systems, and can also eliminate the coordination error of multiple drive components.

[0031] exist Figure 4 and Figures 8-11 In the middle: support bars are symmetrically arranged on the surface of the rotating shaft 805, and support grooves that form a sliding structure with the support bars are symmetrically opened on the inner side of the helical gear 802. An annular disk 804 is welded on the surface of the rotating shaft 805, and a telescopic spring 803 for resetting the helical gear 802 is connected between the annular disk 804 and the helical gear 802.

[0032] Specifically, since the helical gear 802 is slidably connected to the rotating shaft 805 through the support bar and the support groove, and is elastically connected to the annular disk 804 through the telescopic spring 803, the helical gear 802 makes a reciprocating motion away from and close to the helical gear block 801 during the vertical downward movement of the helical gear block 801, so that the helical gear 802 and the rotating shaft 805 are in a non-rotating state.

[0033] exist Figures 1-3 and Figure 13 In the middle: The top of the mounting bracket 2 is provided with guide cylinders at both the front and rear ends of the hydraulic cylinder 3, and the guide cylinders are slidably connected to guide rods welded to the lifting plate 4.

[0034] Specifically, the guide cylinder and guide rod work together to provide auxiliary support and guidance for the lifting plate 4, so that the lifting plate 4 can only move longitudinally.

[0035] exist Figures 1-3 and Figure 13In the middle: the welding mechanism 6 includes a welding torch 601 installed at the bottom of the transverse mechanism 5 and a welding machine body 603 installed at the rear end of the mounting frame 2. A welding cable 602 is connected between the welding torch 601 and the welding machine body 603.

[0036] Specifically, after the welding torch 601 is lowered to the designated position, the welding machine body 603 is started, so that the welding torch 601 can be used to weld the parts. At the same time, the welding torch 601 is moved laterally by the transverse mechanism 5 to achieve full welding on one side.

[0037] exist Figures 1-6 and Figure 10 , Figure 12 , Figure 13 In the middle: the positioning mechanism 9 includes a support frame 901 that is movably connected to the support frame 11. An electric push rod 902 for driving the positioning frame 903 to rise and fall is installed through the top of the support frame 901. The bottom end of the electric push rod 902 is provided with a positioning frame 903 that is slidably connected to the support frame 901. The positioning frame 903 cooperates with the support frame 901 to clamp and position the parts. The rear end of the support frame 901 is welded with a stop rod 904 for abutting against the parts. The positioning frame 903 includes a positioning plate and rods symmetrically welded to the top of the positioning plate, and the rods are slidably connected to the support frame 901.

[0038] Specifically, the two parts to be welded are placed horizontally inside the support frame 901 and stopped when the ends of the parts abut against the abutment rod 904. At this time, the electric push rod 902 is controlled to work and extend, so that the positioning frame 903 moves vertically downward and cooperates with the support frame 901 to position and align the parts, thereby improving stability and ensuring welding accuracy.

[0039] exist Figures 1-3 In the middle: The rear end of the frame 1 is located below the unloading chute 10 and a conveyor belt can be installed as needed to transport the parts after unloading.

[0040] Specifically, the conveyor belt facilitates the transport of discharged components, improving ease of use.

[0041] Two parts to be welded are placed horizontally in the support frame 901. The welding stops when the ends of the parts abut against the abutment rod 904. At this time, the electric push rod 902 is controlled to work and extend, so that the positioning frame 903 moves vertically down and cooperates with the support frame 901 to position and align the parts. Then, the hydraulic cylinder 3 is started, which drives the lifting plate 4 and the welding gun 601 to move down to the designated position. The welding machine body 603 is started, so that the welding gun 601 can be used to weld the parts. At the same time, the welding gun 601 is moved laterally by the transverse movement mechanism 5 to achieve full welding on one side. After single-sided welding is completed, hydraulic cylinder 3 drives lifting plate 4 to rise and reset. During this process, gear plate frame 701 and helical gear block 801 move upward synchronously, causing helical gear block 801 to mesh with helical gear 802. Through the meshing action of helical gear block 801 and helical gear 802, helical gear 802, rotating shaft 805 and disc 807 rotate clockwise synchronously. Through the linkage action of clamping plate 809 and disc 807, linkage plate 808 drives clamping plate 809 to disengage from clamping slot 810. When helical gear block 801 separates from helical gear 802, clamping frame 812 engages with clamping rod 811, and gear plate frame 701 and gear... When the disc 702 engages and the toothed plate frame 701 continues to move upward, the cooperation between the clamp bracket 812 and the clamp rod 811 keeps the clamp plate 809 separated from the clamp slot 810. Through the meshing action of the toothed disc 702 and the toothed plate frame 701 and the engagement action of the clamp block and the ratchet 705, the toothed disc 702, the ratchet 705 and the support shaft 706 rotate synchronously, thereby causing the support frame 901 to drive the parts to rotate precisely 180°. At this time, the clamp bracket 812 and the clamp rod 811 separate, so that the rotating shaft 805 and the disc 807 quickly and automatically reset under the action of the torsion spring 806 and engage the clamp plate 809 with the clamp slot 810. Then, the hydraulic cylinder 3 drives the lifting plate 4 and welding gun 601 to move down to the designated position again, and the welding gun 601 and the transverse mechanism 5 cooperate to achieve full welding on the other side of the parts. After the welding is completed, the hydraulic cylinder 3 drives the lifting plate 4 to rise and reset, and at the same time, the electric push rod 902 works and retracts, so that the positioning frame 903 separates from the parts. In this process, the automatic unloading of parts is completed by using the inertial force and gravity during the flipping process and the cooperation with the unloading trough 10. Electrical equipment (including but not limited to motors, electric actuators, etc.) is safely powered by an external power source and controlled by a control box. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0042] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A welding device for machining parts of numerical control machine tools, comprising a rack (1), a mounting frame (2), a hydraulic cylinder (3) and a lifting plate (4), the bottom end of the lifting plate (4) is connected with a transverse movement mechanism (5), the bottom end of the transverse movement mechanism (5) is provided with a welding mechanism (6) for welding parts, the top end of the rack (1) is symmetrically welded with a support frame (11), and the side of the two support frames (11) close to each other is provided with a positioning mechanism (9); characterized in that: a turnover mechanism (7) for realizing automatic unloading of parts is arranged through the inside of the support frame (11), the turnover mechanism (7) comprises a toothed plate frame (701) symmetrically welded on the surface of the lifting plate (4) and a support shaft (706) connected with the support frame (11) through a bearing, and a ratchet wheel (705) in engagement structure with an inclined clamping block (703) is arranged on the surface of the support shaft (706) on the inner side of the toothed disc (702); a discharging groove (10) for parts to pass through is formed in the rear end of the rack (1); a shift prevention mechanism (8) for inhibiting slight deviation is arranged through the inside of the support frame (11), the shift prevention mechanism (8) comprises an inclined tooth block (801) equidistantly welded at the front end of the toothed plate frame (701) and a rotating shaft (805) rotatably connected in the inside of the support frame (11), and a disc (807) for driving the transverse movement of a clamping plate (809) is fixed at the end of the rotating shaft (805) away from the inclined tooth gear (802), and the surface of the support shaft (706) is symmetrically provided with a clamping groove (810) in engagement structure with the clamping plate (809).

2. The welding device for machining parts of a numerically controlled machine tool according to claim 1, characterized in that: One end of the support shaft (706) is welded with a supporting frame (901), the rear end of the toothed plate frame (701) is engaged with a toothed disc (702) arranged on the outer side of the support shaft (706), and the toothed disc (702) is used to drive the rotation of the ratchet wheel (705), and the ratchet wheel (705) is used to make the support shaft (706) rotate synchronously.

3. The welding device for machining parts of a numerically controlled machine tool according to claim 2, characterized in that: An inclined clamping block (703) for making the toothed disc (702) and the ratchet wheel (705) move synchronously is slidably connected on one side of the inside of the toothed disc (702), supporting springs (704) symmetrically arranged between the inclined clamping block (703) and the toothed disc (702) are connected, and the supporting springs (704) are used to realize the automatic reset of the inclined clamping block (703).

4. The welding device for machining parts of a numerically controlled machine tool according to claim 1, characterized in that: An inclined tooth gear (802) slidably connected on the surface of the rotating shaft (805) is engaged with the front end of the inclined tooth block (801), so as to make the rotating shaft (805) rotate, a clamping rod (811) is welded on the surface of the annular disc (804), a clamping frame (812) in engagement structure with the clamping rod (811) is welded on one side of the toothed plate frame (701), and when the clamping frame (812) and the clamping rod (811) are engaged, the rotating shaft (805) is limited.

5. The welding device for machining parts of a numerically controlled machine tool according to claim 1, characterized in that: A torsional spring (806) for automatically resetting the rotating shaft (805) is connected between the disc (807) and the support frame (11), one side of the support frame (11) is welded with a limiting plate (813) for supporting and guiding the clamping plate (809), the inside of the limiting plate (813) is slidably connected with the clamping plate (809), the clamping plate (809) is rotatably connected with the linkage plate (808) between the disc (807), so that the clamping plate (809) moves with the disc (807), and the clamping plate (809) cooperates with the clamping groove (810) to rigidly lock the support shaft (706).

6. The welding device for machining parts of a numerically controlled machine tool according to claim 4, characterized in that: Supporting strips are symmetrically arranged on the surface of the rotating shaft (805), supporting grooves are symmetrically formed in the inner side of the bevel gear (802) and form a sliding structure with the supporting strips, and the surface of the rotating shaft (805) is welded with an annular disc (804), and the annular disc (804) is connected with the bevel gear (802) and the elastic spring (803) for resetting the bevel gear (802).

7. The welding device for machining parts of a numerically controlled machine tool according to claim 1, characterized in that: The inside of the rack (1) is provided with a cavity communicating with the blanking groove (10), and the bottom end of the inner side of the rack (1) is provided with a movable collection box.

8. The welding device for machining parts of a numerically controlled machine tool according to claim 1, characterized in that: The mounting frame (2) is welded to the top end of the rack (1), the hydraulic cylinder (3) penetrates the top end of the mounting frame (2) and is used to drive the lifting plate (4) to lift, the bottom end of the hydraulic cylinder (3) is provided with the lifting plate (4) which is slidably connected with the mounting frame (2), and the lifting plate (4) is used to stably support the horizontal moving mechanism (5); the top end of the mounting frame (2) is provided with guide cylinders penetrating the front and rear ends of the hydraulic cylinder (3), and the guide cylinders are slidably connected with guide rods which are welded to the lifting plate (4).

9. The welding device for machining parts of a numerically controlled machine tool according to claim 1, characterized in that: The welding mechanism (6) comprises a welding gun (601) mounted at the bottom end of the horizontal moving mechanism (5) and a welding machine body (603) mounted at the rear end of the mounting frame (2), and the welding gun (601) and the welding machine body (603) are connected with a welding cable (602).

10. The welding device for machining parts of a numerically controlled machine tool according to claim 1, characterized in that: The positioning mechanism (9) is used for stably supporting the parts, and the positioning mechanism (9) comprises a supporting frame (11) movably connected with a supporting frame (901), and the top end of the supporting frame (901) is provided with an electric push rod (902) for driving the positioning frame (903) to lift, the bottom end of the electric push rod (902) is provided with the positioning frame (903) which is slidably connected with the supporting frame (901), the positioning frame (903) cooperates with the supporting frame (901) to realize clamping and positioning of the parts, and the rear end of the supporting frame (901) is welded with a resisting rod (904) for abutting against the parts; the positioning frame (903) comprises a positioning plate and rod bodies symmetrically welded to the top end of the positioning plate, and the rod bodies are slidably connected with the supporting frame (901).

Images