Frame type large numerical control four roller strong spinning machine roller seat frame body and manufacturing method thereof

Abstract

The frame type large numerical control four-wheel strong spinning machine wheel seat frame body and manufacturing method thereof belong to the technical field of spinning machines, and aim to solve the problems of machining difficulty, transportation difficulty and assembly difficulty existing in the prior art. The invention comprises a wheel seat upper frame body, a wheel seat lower frame body, a connecting positioning body connecting the wheel seat upper frame body and the wheel seat lower frame body, and horizontal sliding bodies respectively slidingly matched with the wheel seat upper frame body and the wheel seat lower frame body; the end faces of the wheel seat upper frame body and the wheel seat lower frame body are in contact, and are positioned and connected through connecting positioning pins and connecting positioning keys; the connected end faces of the wheel seat upper frame body and the wheel seat lower frame body are fixedly connected through high-strength screws; the corresponding inner side faces and outer side faces of the two end portions respectively connected by the wheel seat upper frame body and the wheel seat lower frame body are fixedly connected with the guard plates through fixing pins; and the wheel seat upper frame body and the wheel seat lower frame body connect the upper frame body action cavity and the lower frame body action cavity to form a spinning action hole penetrating the whole.

Description

Technical Field

[0001] This invention belongs to the field of spinning machine technology, specifically relating to a frame-type large CNC four-rotor heavy-duty spinning machine and its manufacturing method. Background Technology

[0002] Spin forming is a plastic forming method that uses a spinning tool to apply pressure to a rotating blank, causing continuous localized plastic deformation to form a rotating part. It plays an important role in precision metal machining fields such as aerospace and military industries. The equipment used in the spin forming process is called a spinning machine. According to the bed structure, it can be divided into vertical spinning machines and horizontal spinning machines. According to the number of spinning wheels, it can be divided into single-spindle, double-spindle, triple-spindle, quadruple-spindle, and ball-bearing spinning machines. Among them, double-spindle and triple-spindle spinning machines are more common. In a vertical four-spindle spinning machine, the four spinning wheels can be evenly distributed around the spindle. Compared with double-spindle and triple-spindle spinning machines, the pressure on the workpiece is more uniform, resulting in higher product manufacturing precision.

[0003] Due to the large size and weight of large vertical four-wheel spinning machines, and the high precision requirements for machining, higher requirements are also placed on the spinning wheel base frame. The existing enclosed spinning wheel base frame of large four-wheel spinning machines is too large, making the design and machining of the existing overall structure difficult, and it is also difficult to transport and assemble. Summary of the Invention

[0004] The purpose of this invention is to propose a frame-type large-scale CNC four-wheel high-power spinning machine spinner base and its manufacturing method, thereby solving the problems of processing difficulties, transportation difficulties, and assembly difficulties existing in the prior art.

[0005] To achieve the above objectives, the frame-type large CNC four-rotor heavy-duty spinning machine of the present invention includes a rotating wheel seat upper frame, a rotating wheel seat lower frame, a connecting positioning body that connects the rotating wheel seat upper frame and the rotating wheel seat lower frame, and transverse sliding bodies that slide in cooperation with the rotating wheel seat upper frame and the rotating wheel seat lower frame respectively.

[0006] The upper frame of the rotating wheel seat is a U-shaped frame structure, with the middle serving as the working cavity of the upper frame. The bottom diagonal of the U-shaped frame structure is provided with upper frame sliding grooves, and two transverse sliding bodies slide in cooperation with the two upper frame sliding grooves respectively.

[0007] The lower frame of the rotating wheel seat is a U-shaped frame structure, with the middle serving as the working cavity of the lower frame. The bottom diagonal of the U-shaped frame structure is provided with a lower frame slide groove, and the other two transverse slide bodies slide in cooperation with the two lower frame slide grooves respectively.

[0008] The connecting positioning body includes a connecting positioning pin, a connecting positioning key, a protective plate, a fixing pin, and high-strength screws;

[0009] The end faces of the upper and lower frames of the spinning wheel base are in contact and are positioned and connected by a connecting positioning pin and a connecting positioning key. The connecting end faces of the upper and lower frames of the spinning wheel base are fixed by high-strength screws. The inner and outer sides of the two ends of the upper and lower frames of the spinning wheel base are respectively fixedly connected with guard plates by fixing pins. The upper and lower frames of the spinning wheel base form a spinning action hole that runs through the whole.

[0010] The upper frame of the rotating wheel seat has a positioning groove and a threaded hole on each of the two end faces of the U-shaped frame structure. The inner and outer sides of the U-shaped frame structure that are perpendicular to the end faces are evenly provided with a number of pin holes.

[0011] The U-shaped frame structure of the lower frame of the rotating wheel seat is provided with a lower frame positioning groove and a lower frame threaded hole on each of the two end faces. The inner and outer sides of the U-shaped frame structure that are perpendicular to the end faces are provided with a plurality of lower frame pin holes at the end of the end face of the U-shaped frame structure.

[0012] The connecting positioning pin and the connecting positioning key are located in the positioning grooves of the upper frame and the lower frame, which are arranged opposite to each other; the high-strength screw is threadedly connected to the threaded holes of the upper frame and the lower frame, which are arranged opposite to each other; the fixing pin passes through the guard plate and engages with the upper frame pin hole on the upper frame or the lower frame pin hole on the lower frame.

[0013] The high-strength screw is an M36 high-strength screw.

[0014] The manufacturing method of the frame body of a large-scale CNC four-wheel spinning heavy-duty spinning machine includes the following steps:

[0015] Step 1: Complete the welding of the upper frame and the lower frame of the rotating wheel base respectively;

[0016] Step 2: Stress-relief annealing is performed on the upper and lower frames of the rotating wheel seat, which are obtained by welding respectively, and then they are machined to the required dimensions.

[0017] Step 3: Position the upper frame of the rotating wheel base and the lower frame of the rotating wheel base obtained in Step 2 using two connecting positioning pins and two connecting positioning keys;

[0018] Step 4: Secure the contact surfaces of the upper frame and lower frame of the rotating wheel base with high-strength screws to obtain the connecting body;

[0019] Step 5: Machin the entire connector obtained in Step 4 to the required dimensions;

[0020] Step 6: Install a protective plate on the side of the upper frame of the swivel base that is perpendicular to the contact surface between the upper frame and the lower frame of the swivel base;

[0021] Step 7: Remove the guard plate from the upper frame and lower frame of the rotating wheel base, and disassemble the connecting body formed by the upper frame and lower frame of the rotating wheel base;

[0022] Step 8: Assemble the upper frame and lower frame of the rotating wheel seat separately. Install the slide body and the rotating wheel seat in the upper frame slide groove of the upper frame and the lower frame slide groove of the lower frame of the rotating wheel seat respectively to obtain the assembled upper frame and lower frame of the rotating wheel seat.

[0023] Step 9: Assemble the upper and lower frames of the rotating wheel seat obtained in Step 8 according to the methods in Step 3, Step 4 and Step 6 to obtain a closed rotating wheel seat frame.

[0024] The high-strength screws mentioned in step four are M36 high-strength screws, and there are 72 of them.

[0025] The guard plate mentioned in step six is ​​installed on the upper frame and lower frame of the rotating wheel seat by fixing pins.

[0026] The beneficial effects of this invention are as follows: The frame-type large-scale CNC four-wheel high-power spinning machine's spinning wheel seat frame and its manufacturing method solve the problems of difficult processing, transportation, and assembly of enclosed spinning wheel seat frames while ensuring the overall rigidity of the enclosed spinning wheel seat frame. This transforms the reaction force acting on the spinning wheel seat frame into the system's internal force, significantly reducing deformation of the spinning wheel seat frame, increasing the overall rigidity of the large spinning equipment, improving the operational accuracy of the large spinning equipment, and thus enhancing the accuracy of large-diameter shell forming. This invention adopts a modular design for the enclosed spinning wheel seat frame, facilitating processing, transportation, and assembly. The upper and lower spinning wheel seat frames are machined separately, ensuring the machining accuracy of each unit. A connecting device is designed to rigidly connect the upper and lower spinning wheel seat frames, providing convenient disassembly. This invention solves the problems of difficult processing, transportation, and assembly of enclosed spinning wheel base frames due to their weight and dimensions, shortens the manufacturing cycle, reduces manufacturing costs, improves the overall rigidity of the equipment, and effectively enhances the spinning quality of large-diameter spinning shells. Attached Figure Description

[0027] Figure 1 This is a right view of the upper frame structure of the spinning wheel seat in the frame-type large CNC four-spinning wheel high-power spinning machine of the present invention;

[0028] Figure 2 for Figure 1 AA section view;

[0029] Figure 3This is a top view of the upper frame structure of the spinning wheel seat in the frame-type large CNC four-spinning wheel high-power spinning machine of the present invention;

[0030] Figure 4 This is a right view of the lower frame structure of the frame-type large CNC four-rotor high-power spinning machine of the present invention.

[0031] Figure 5 for Figure 4 AA section view;

[0032] Figure 6 This is a top view of the lower frame structure of the frame-type large CNC four-rotor high-power spinning machine of the present invention;

[0033] Figure 7 This is a right view of the connection structure between the upper frame and the lower frame of the spinning wheel seat in the frame-type large CNC four-spinning-wheel heavy-duty spinning machine of the present invention;

[0034] Figure 8 for Figure 7 AA section view;

[0035] Figure 9 This is a diagram of the upper frame of the spinning wheel seat in the frame-type large CNC four-spindle high-power spinning machine of the present invention;

[0036] Figure 10 This is a diagram of the lower frame of the spinning wheel seat in the frame-type large CNC four-spindle high-power spinning machine of the present invention;

[0037] Figure 11 This is an assembly drawing of the frame-type large CNC four-wheel high-power spinning machine's spinning wheel base frame of the present invention;

[0038] Among them: 1. Upper frame of the rotating wheel seat, 101. Positioning groove of the upper frame, 102. Threaded hole of the upper frame, 103. Pin hole of the upper frame, 104. Slide groove of the upper frame, 105. Working cavity of the upper frame; 2. Lower frame of the rotating wheel seat, 201. Positioning groove of the lower frame, 202. Threaded hole of the lower frame, 203. Pin hole of the lower frame, 204. Slide groove of the lower frame, 205. Working cavity of the lower frame; 3. Transverse slide body; 4. Connecting positioning body, 401. Connecting positioning pin, 402. Connecting positioning key, 403. High-strength screw, 404. Protective plate, 405. Fixing pin. Detailed Implementation

[0039] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0040] See Figures 1-11The frame-type large CNC four-rotor heavy spinning machine of the present invention includes a rotating base upper frame 1, a rotating base lower frame 2, a connecting positioning body 4 connecting the rotating base upper frame 1 and the rotating base lower frame 2, and a transverse sliding body 3 that slides in cooperation with the rotating base upper frame 1 and the rotating base lower frame 2 respectively.

[0041] The upper frame 1 of the rotating wheel seat is a U-shaped frame structure, with the middle serving as the upper frame working cavity 105. The bottom diagonal of the U-shaped frame structure is provided with upper frame sliding grooves 104, and the two transverse sliding bodies 3 are respectively slidably engaged with the two upper frame sliding grooves 104.

[0042] The lower frame 2 of the rotating wheel seat is a U-shaped frame structure, with the middle serving as the working cavity 205 of the lower frame. The lower frame slide groove 204 is provided at the diagonal bottom of the U-shaped frame structure, and the other two transverse slide bodies 3 are respectively slidably engaged with the two lower frame slide grooves 204.

[0043] The connecting positioning body 4 includes a connecting positioning pin 401, a connecting positioning key 402, a protective plate 404, a fixing pin 405, and a high-strength screw 403.

[0044] The end faces of the upper frame 1 and the lower frame 2 of the spinning wheel seat are in contact and are positioned and connected by a connecting positioning pin 401 and a connecting positioning key 402. The end faces of the upper frame 1 and the lower frame 2 of the spinning wheel seat are connected and fixed by high-strength screws 403. The inner and outer sides of the two ends of the upper frame 1 and the lower frame 2 of the spinning wheel seat are respectively fixedly connected to guard plates 404 by fixing pins 405. The upper frame 1 and the lower frame 2 of the spinning wheel seat are connected to form a spinning action hole that runs through the whole.

[0045] The upper frame of the rotating base 1 has a positioning groove 101 and a threaded hole 102 on each end face of the U-shaped frame structure. The inner and outer sides of the U-shaped frame structure that are perpendicular to the end face are provided with a plurality of pin holes 103.

[0046] The U-shaped frame structure of the lower frame 2 of the rotating wheel seat is provided with a lower frame positioning groove 201 and a lower frame threaded hole 202 on each of the two end faces. The inner and outer sides of the U-shaped frame structure that are perpendicular to the end face are provided with a plurality of lower frame pin holes 203.

[0047] The connecting positioning pin 401 and the connecting positioning key are located in the upper frame positioning groove 101 and the lower frame positioning groove 201, which are arranged opposite to each other; the high-strength screw 403 is threadedly connected to the upper frame threaded hole 102 and the lower frame threaded hole 202, which are arranged opposite to each other on the upper frame 1 and the lower frame 2 of the rotating wheel seat; the fixing pin 405 passes through the guard plate 404 and engages with the upper frame pin hole 103 on the upper frame 1 or the lower frame pin hole 203 on the lower frame 2 of the rotating wheel seat.

[0048] The high-strength screw 403 is an M36 high-strength screw 403.

[0049] The manufacturing method of the frame body of a large-scale CNC four-wheel spinning heavy-duty spinning machine includes the following steps:

[0050] Step 1: Complete the welding of the upper frame 1 and the lower frame 2 of the rotating wheel seat respectively;

[0051] Step 2: Stress-relief annealing is performed on the upper frame 1 and lower frame 2 of the rotating wheel seat, which are obtained by welding respectively, and they are then machined to the required dimensions.

[0052] Step 3: Position the upper frame 1 and lower frame 2 of the rotating wheel base obtained in Step 2 using two connecting positioning pins 401 and two connecting positioning keys 402;

[0053] Step 4: Secure the contact surfaces of the upper frame 1 and the lower frame 2 of the rotating wheel base with high-strength screws 403 to obtain the connecting body;

[0054] Step 5: Machin the entire connector obtained in Step 4 to the required dimensions;

[0055] Step 6: Install a protective plate 404 on the side perpendicular to the contact surface between the upper frame 1 and the lower frame 2 of the rotating wheel seat to enhance its overall rigidity;

[0056] Step 7: Remove the guard plate 404 from the upper frame 1 and the lower frame 2 of the rotating wheel seat, and disassemble the connecting body formed by the upper frame 1 and the lower frame 2 of the rotating wheel seat;

[0057] Step 8: Assemble the upper frame 1 and the lower frame 2 of the rotating wheel seat respectively. Install the slide body and the rotating wheel seat in the upper frame slide groove 104 of the upper frame 1 and the lower frame slide groove 204 of the lower frame 2 of the rotating wheel seat respectively to obtain the assembled upper frame 1 and lower frame 2 of the rotating wheel seat.

[0058] Step 9: Assemble the upper frame 1 and lower frame 2 of the rotary seat obtained in Step 8 according to the methods in Step 3, Step 4 and Step 6 to obtain a closed rotary seat frame.

[0059] The high-strength screws 403 mentioned in step four are M36 high-strength screws 403, and the quantity is 72.

[0060] The guard plate 404 mentioned in step six is ​​installed on the upper frame 1 and the lower frame 2 of the rotating wheel seat by fixing pin 405.

Claims

1. A method for manufacturing the frame of a large-scale CNC four-wheel high-power spinning machine, characterized in that, The frame of the frame-type large CNC four-rotor heavy spinning machine includes an upper frame (1), a lower frame (2), a connecting positioning body (4) that connects the upper frame (1) and the lower frame (2), and a transverse sliding body (3) that slides in cooperation with the upper frame (1) and the lower frame (2) respectively. The upper frame (1) of the rotating wheel seat is a U-shaped frame structure, with the middle serving as the upper frame working cavity (105). The upper frame slide groove (104) is provided at the bottom diagonal of the U-shaped frame structure, and the two transverse slide bodies (3) are respectively in sliding cooperation with the two upper frame slide grooves (104). The lower frame (2) of the rotating wheel seat is a U-shaped frame structure, with the middle serving as the working cavity (205) of the lower frame. The lower frame slide groove (204) is provided at the diagonal bottom of the U-shaped frame structure. The other two transverse slide bodies (3) are respectively in sliding cooperation with the two lower frame slide grooves (204). The connecting positioning body (4) includes a connecting positioning pin (401), a connecting positioning key (402), a guard plate (404), a fixing pin (405), and a high-strength screw (403). The end faces of the upper frame (1) and the lower frame (2) of the spinning wheel seat are in contact and are positioned and connected by a connecting positioning pin (401) and a connecting positioning key (402). The end faces of the upper frame (1) and the lower frame (2) of the spinning wheel seat are connected and fixed by high-strength screws (403). The inner and outer sides of the two ends of the upper frame (1) and the lower frame (2) of the spinning wheel seat are respectively fixedly connected with guard plates (404) by fixing pins (405). The upper frame (1) and the lower frame (2) of the spinning wheel seat are connected to the upper frame working cavity (105) and the lower frame working cavity (205) to form a spinning working hole that runs through the whole. The production method includes the following steps: Step 1: Complete the welding of the upper frame (1) and the lower frame (2) of the rotating wheel seat respectively; Step 2: Stress-relief annealing is performed on the upper frame (1) and lower frame (2) of the rotating wheel seat obtained by welding, and they are then machined to the required dimensions. Step 3: Position the upper frame (1) of the rotating wheel seat (2) obtained in Step 2 using two connecting positioning pins (401) and two connecting positioning keys (402); Step 4: Secure the contact surfaces of the upper frame (1) and lower frame (2) of the rotating wheel seat with high-strength screws (403) to obtain the connecting body; Step 5: Machin the entire connector obtained in Step 4 to the required dimensions; Step 6: Install a guard plate (404) on the side perpendicular to the contact surface between the upper frame (1) and the lower frame (2) of the swivel base. Step 7: Remove the guard plate (404) from the upper frame (1) and lower frame (2) of the rotating wheel seat, and disassemble the connecting body formed by the upper frame (1) and lower frame (2) of the rotating wheel seat; Step 8: Assemble the upper frame (1) and lower frame (2) of the rotating wheel seat respectively. Install the slide body and the rotating wheel seat in the upper frame slide groove (104) of the upper frame (1) and the lower frame slide groove (204) of the lower frame (2) of the rotating wheel seat respectively to obtain the assembled upper frame (1) and lower frame (2) of the rotating wheel seat. Step 9: Assemble the upper frame (1) and lower frame (2) of the rotary seat obtained in Step 8 according to the methods in Step 3, Step 4 and Step 6 to obtain a closed rotary seat frame.

2. The manufacturing method according to claim 1, characterized in that, The high-strength screws (403) mentioned in step four are M36 high-strength screws (403), and there are 72 of them.

3. The manufacturing method according to claim 1, characterized in that, The guard plate (404) mentioned in step six is ​​installed on the upper frame (1) and lower frame (2) of the rotating wheel seat by fixing pin (405).

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