Turning auxiliary device with dual-positioning function

Abstract

The invention discloses a turning auxiliary device with a dual positioning function, and relates to the technical field of turning auxiliary devices, the turning auxiliary device comprises a turning workbench and an auxiliary frame, the top end of the turning workbench is connected with the auxiliary frame, the turning workbench is provided with a movable groove, and the bottom end of the auxiliary frame is connected with a displacement block. According to the turning auxiliary device with the dual-positioning function, a hollow pipe to be turned is connected to the outer side of an inner limiting mechanism in a sleeving mode, a linkage motor is driven to drive a crankshaft to rotate, then a lead screw rotates, a threaded block is in threaded connection with the lead screw, the threaded block horizontally moves on the lead screw and moves towards one side of a sleeving block, and turning is achieved. According to the self-feeding material guiding mechanism, the hinge arm is straightened outwards and is matched with the supporting arm and the inner positioning plate to push the inner positioning plate to move outwards, the two sets of self-feeding material guiding mechanisms can abut against the inner wall of the hollow pipe fitting through the arc-shaped design of the end face of the inner positioning plate, preliminary limiting is achieved, and operation is convenient and fast.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of turning auxiliary devices, in particular to a turning auxiliary device with double positioning functions. BACKGROUND

[0002] With the rapid development of modern mechanical manufacturing industry, high-precision and high-efficiency turning machining has become an important requirement of the industry. In the process of turning machining of pipe fittings, the pipe fittings are cut by rotating cutters to achieve the required shape and size. The positioning accuracy is one of the key factors affecting the machining quality. The traditional turning auxiliary device usually only has a single positioning function and cannot meet the high-precision positioning requirements in the machining of complex workpieces. Therefore, it is an urgent requirement in the industry to develop a turning auxiliary device with double positioning functions, which is of great significance to improve machining precision, reduce production cost and enhance enterprise competitiveness. A turning auxiliary device with publication number CN106475578A comprises a support seat, an adjusting rod, a first transmission device, a driven rod, a second transmission device, a locking device and a workbench. The first transmission device comprises a first motor, a first rotating shaft and a first transmission rod. The second transmission device comprises a driven tray, a clamping device, a second rotating shaft, a second motor and a second transmission rod. The structure of the application is reasonable and low in cost, can reduce the turning position deviation caused by the movement of the turning tool, reduce the rate of defective products, speed up the turning speed and improve the turning efficiency. In the process of turning machining, in order to ensure the machining precision of workpieces and ensure the production efficiency, the auxiliary device is needed to assist in positioning and clamping the workpieces to be turned. The above prior art uses a clamping device to clamp multiple workpieces, but does not introduce and improve the clamping device. In actual use, the workpiece is directly inserted into the round hole of the clamping device for auxiliary positioning. However, the auxiliary positioning method of the workpiece is single. On the one hand, the single clamping method cannot realize comprehensive and stable auxiliary positioning of the workpiece. In addition, the first motor needs to be driven to rotate the driven rod to adjust the turning machining position during use. A certain centrifugal force is generated during rotation, which causes the workpiece to deviate from the position, reduces the turning precision and quality of the workpiece, and also increases the time and labor cost due to the lack of comprehensive auxiliary positioning and the need for frequent manual adjustment of the workpiece position, thereby reducing the turning quality of the workpiece. On the other hand, the fixed positioning device cannot better adapt to workpieces of different specifications, reducing the application range and flexibility of the device. Therefore, corresponding improvement is needed. A sample turning auxiliary device with publication number CN115213441A belongs to the technical field of tool fixtures, and includes a fixed sleeve and a movable sleeve. The fixed sleeve is in the shape of a stepped shaft and includes a fixed section and an expansion section that are connected. The fixed section is matched with a fixed chuck at one end of a lathe. The outer diameter of the expansion section is larger than that of the fixed section to form a positioning step surface. A clamping cavity coaxial with the fixed section is formed at the end of the expansion section away from the fixed section to clamp a small sample to be processed. A plurality of expansion slots are formed in the circumferential direction of the clamping cavity, and the expansion slots extend from the end of the expansion section away from the fixed section towards the fixed section. One end of the movable sleeve is matched with a movable chuck at the other end of the lathe, and the other end is provided with a positioning cavity coaxial therewith to clamp the small sample to be processed. A plurality of fastening screw holes are formed in the circumferential direction of the positioning cavity, and a fastening screw is threadedly connected in the fastening screw hole to lock the small sample to be processed. The present application solves the clamping problem of small samples during turning, and is simple to operate. The above prior art uses a small sample to be processed inserted into the movable sleeve, and uses a fastening screw to lock it, but the operation is cumbersome and requires the use of external tools to tighten or loosen the bolt, reducing the workpiece clamping efficiency. Therefore, corresponding improvements are needed. SUMMARY

[0003] The present application aims to provide a turning auxiliary device with double positioning function to solve the problem of single function and poor fixing effect of the existing turning auxiliary device in the background art.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a turning auxiliary device with double positioning function, comprising a turning workbench and an auxiliary frame, the top end of the turning workbench is connected with the auxiliary frame, the turning workbench is provided with a movable groove, the bottom end of the auxiliary frame is connected with a displacement block, the displacement block moves in the movable groove, and the auxiliary frame and the turning workbench are in movable connection; Further comprising: One side of the auxiliary frame is connected with a rotary motor, one end of the rotary motor is connected with a rotary shaft, one end of the rotary shaft is connected with a drive box, the inside of the drive box is provided with a double positioning drive assembly, one side of the drive box is provided with a first positioning assembly, and the first positioning assembly includes an inner limiting mechanism; The inner limiting mechanism comprises a lead screw, one end of the lead screw is connected with a connecting column, the outer side of the lead screw is threadedly sleeved with a threaded block, the outer sides of the two ends of the connecting column are respectively sleeved with a sleeving block and an auxiliary block, the interiors of the sleeving block and the auxiliary block are penetrated with a supporting column, one end of the supporting column is penetrated with the threaded block and fixedly connected with one side of the driving box, the two sides of the threaded block are movably connected with hinged arms, the two sides of the sleeving block are movably connected with supporting arms, the two sides of the auxiliary block are movably connected with connecting arms, one end of the connecting arm, the supporting arm and the hinged arm is movably connected with an inner positioning plate, and the end portions of the inner positioning plate are arc-shaped. The outer side of the driving box is provided with a second positioning assembly, and the second positioning assembly comprises an outer limiting mechanism.

[0005] Further, the threaded block is threadedly connected with the lead screw, the threaded block moves horizontally on the lead screw, the supporting column is provided with two groups for limiting and supporting the connecting column and the auxiliary block.

[0006] Further, the outer limiting mechanism comprises a driven rotating shaft, one end of the driven rotating shaft is connected with an auxiliary rotating shaft, the outer side of the auxiliary rotating shaft is sleeved with a first embracing clamping arm, one side of the driving box on one side of the auxiliary rotating shaft is connected with a transition rotating shaft, a lateral belt wheel assembly is connected between the auxiliary rotating shaft and the transition rotating shaft, and one end of the transition rotating shaft is connected with a direction adjusting member. The lateral belt wheel assembly comprises a transmission wheel, a linkage wheel and a driving belt, the transmission wheel is sleeved on one end of the auxiliary rotating shaft, the linkage wheel is sleeved on one end of the transition rotating shaft, and the driving belt is connected between the transmission wheel and the linkage wheel.

[0007] Further, the direction adjusting member comprises a main gear sleeved on one end of the transition rotating shaft, one side of the main gear is engaged with a driven gear, the interior of the driven gear is penetrated with a linkage shaft, the outer side of the linkage shaft is sleeved with a second embracing clamping arm, one side of the second embracing clamping arm and the first embracing clamping arm is connected with an inner limiting block, and the inner limiting block is made of rubber. The auxiliary rotating shaft and the transition rotating shaft have the same direction, the transition rotating shaft and the linkage shaft have opposite directions, and the linkage shaft and the auxiliary rotating shaft have opposite directions.

[0008] Further, the double-positioning driving assembly comprises a linkage motor arranged in the driving box, one end of the linkage motor is connected with a motor shaft, one end of the motor shaft is connected with one end of the lead screw, the interior of the driving box below the motor shaft is connected with a driven rotating shaft, a longitudinal belt wheel assembly is connected between the driven rotating shaft and the motor shaft, and the motor shaft and the longitudinal belt wheel assembly are synchronously driven. The longitudinal pulley assembly comprises two sets of pulleys and a transmission belt, the two sets of pulleys are respectively sleeved on the machine shaft and the driven rotating shaft, and the pulleys are connected through the transmission belt.

[0009] Further, the inside of the turning workbench is provided with an internal cavity, and the inside of the internal cavity is provided with a self-feeding guide mechanism, the self-feeding guide mechanism comprises a driving motor, and the driving motor is arranged in the internal cavity, one end of the driving motor is connected with a driving shaft, and the outer sides of the two ends of the driving shaft are sleeved with feeding gears, the top ends of the feeding gears are engaged with feeding tooth plates, the feeding tooth plates are connected with a connecting plate, and the bottom end of the connecting plate is connected with a supporting block, one end of the supporting block is connected with the inner wall of the internal cavity, and the top end of the connecting plate is connected with the bottom end of the displacement block.

[0010] Further, the feeding tooth plate moves horizontally, so that the connecting plate slides horizontally on the supporting block, and the supporting block and the connecting plate are slidingly connected.

[0011] Further, the two ends of the driving box are connected with guide columns, one side of the auxiliary frame is provided with a guide groove with a ring-shaped cross section, the groove width of the guide groove and the outer diameter of the guide column are matched with each other, and the guide column moves in a circular motion in the guide groove.

[0012] Compared with the prior art, the turning auxiliary device with double positioning function can perform double positioning on the inside and outside of the turning piece to assist the turning of the workpiece, improve the stability of the turning of the workpiece, and has an automatic feeding function to replace manual feeding, which saves manual labor on one hand and avoids manual injury on the other hand. 1. The hollow pipe to be turned is sleeved on the outside of the inner limiting mechanism, the driving linkage motor drives the machine shaft to rotate, the screw rod moves in a rotating motion, the threaded block moves in a horizontal motion on the screw rod through the threaded connection between the threaded block and the screw rod, the threaded block moves to one side of the sleeving block, the articulated arm extends outward, and the supporting arm and the inner positioning plate push the inner positioning plate to move outward, the end face of the inner positioning plate is designed in an arc shape, the two self-feeding guide mechanisms can press and support the inner wall of the hollow pipe, preliminary limiting is realized, the operation is convenient, the hollow pipe can maintain a fixed position and posture during machining, machining errors caused by vibration or unnecessary movement are reduced, and the turning precision is improved. The cooperation of the longitudinal pulley assembly in the rotating process of the linkage motor makes the driven shaft rotate synchronously, further drives the auxiliary shaft to rotate, the auxiliary shaft cooperates with the transverse pulley assembly to make the transition shaft rotate synchronously, further drives the main gear to rotate, and the main gear and the driven gear are meshed with each other, so that the first ring clamping arm and the second ring clamping arm rotate reversely to realize clamping, that is, the two arms embrace the outer periphery of the hollow pipe, until the two groups of inner limiting blocks are attached to the outer wall of the hollow pipe, the hollow pipe is externally clamped, the inner and outer double limiting of the hollow pipe to be turned is realized, the auxiliary positioning effect of the hollow pipe is further enhanced, the hollow pipe turning is more stable, the precision is higher, and the double positioning can be realized by operating only one linkage motor, so that the operation is convenient, the automation degree is high, and the use cost is effectively saved. 2. The driving motor drives the driving shaft to rotate, and drives two groups of feed gears to rotate synchronously, the mutual meshing of the feed gears and the feeding tooth plate can make the feeding tooth plate and the connecting plate move horizontally, and the connecting plate slides on the supporting block, the supporting block is used for limiting and guiding the movement of the connecting plate and the feeding tooth plate, the displacement block slides in the inner part of the movable groove, the auxiliary frame moves horizontally, so that the hollow pipe after positioning is automatically fed, instead of manual feeding, the labor operation demand is effectively reduced, the worker dependence is reduced, the labor cost is reduced, the self-feeding is more accurate, the error caused by human factors is reduced, and the worker contacts the turning part on the turning machine, so that the accident risk is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a three-dimensional structure schematic view of the present application; Figure 2 It is a three-dimensional structure schematic view of the inner limiting mechanism of the present application; Figure 3 It is a three-dimensional structure schematic view of the outer limiting mechanism of the present application; Figure 4 It is a three-dimensional structure schematic view of the turning workbench section of the present application; Figure 5 It is a three-dimensional structure schematic view of the self-feeding guide mechanism of the present application; Figure 6 It is a three-dimensional structure schematic view of the auxiliary frame and the guide groove of the present application; Figure 7 It is a three-dimensional structure schematic view of the driving box section of the present application; Figure 8 It is a three-dimensional structure schematic view of the second ring clamping arm and the transverse pulley assembly of the present application.

[0014] In the figure: 1, turning workbench; 101, movable groove; 2, auxiliary frame; 201, guide groove; 3, rotating motor; 4, rotating shaft; 5, drive box; 6, guide column; 7, inner limiting mechanism; 701, screw rod; 702, connecting column; 703, threaded block; 704, sleeving block; 705, auxiliary block; 706, supporting column; 707, hinged arm; 708, supporting arm; 709, connecting arm; 710, inner positioning plate; 8, outer limiting mechanism; 801, driven rotating shaft; 802, auxiliary rotating shaft; 803, transition rotating shaft; 804, linkage shaft; 805, first ring clamping arm; 806, second ring clamping arm; 807, transverse pulley assembly; 808, main gear; 809, driven gear; 810, inner limiting block; 9, built-in cavity; 10, self-feeding material guiding mechanism; 1001, driving motor; 1002, driving shaft; 1003, feeding gear; 1004, feeding toothed plate; 1005, supporting block; 1006, connecting plate; 11, linkage motor; 1101, machine shaft; 12, longitudinal pulley assembly; 13, displacement block. DETAILED DESCRIPTION

[0015] All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor fall within the scope of protection of the present application.

[0016] As Figures 1-8 The present application provides the following technical solutions: Embodiment one In order to solve the problem that the existing turning auxiliary device has a single way and poor effect when assisting in positioning the hollow pipe during turning, the following technical solutions are disclosed, for details, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7 , Figure 8The utility model provides a kind of auxiliary frame for lathe, including turning table 1, auxiliary frame 2, the top of turning table 1 is connected with auxiliary frame 2, and the top of turning table 1 is provided with movable slot 101, the bottom of auxiliary frame 2 is connected with displacement block 13, displacement block 13 moves in movable slot 101, auxiliary frame 2 and turning table 1 form movable connection, further include: one side of auxiliary frame 2 is connected with rotating motor 3, and one end of rotating motor 3 is connected with rotating shaft 4, one end of rotating shaft 4 is connected with drive box 5, both ends of one side of drive box 5 are connected with guide column 6, one side of auxiliary frame 2 is provided with the guide slot 201 of cross section annular, the groove width of guide slot 201 and the outer diameter of guide column 6 are mutually matched, guide column 6 does circular movement in guide slot 201, the inside of drive box 5 is provided with double positioning drive assembly, double positioning drive assembly includes linkage motor 11 being arranged in the inside of drive box 5, and one end of linkage motor 11 is connected with machine shaft 1101, one end of machine shaft 1101 is connected with screw rod 701, the inside of drive box 5 below machine shaft 1101 is connected with driven shaft 801, and driven shaft 801 and machine shaft 1101 are connected with longitudinal pulley assembly 12 between, machine shaft 1101 and longitudinal pulley assembly 12 are synchronously driven, wherein, longitudinal pulley assembly 12 includes two sets of pulley and transmission belt, two sets of pulley are respectively sleeved on machine shaft 1101 and driven shaft 801, and are connected by transmission belt between pulley, one side of drive box 5 is provided with first positioning assembly, and first positioning assembly includes inner limiting mechanism 7, wherein, inner limiting mechanism 7 includes screw rod 701, screw rod 701 is provided with one side of drive box 5, one end of screw rod 701 is connected with connecting column 702, the outside of screw rod 701 is threadedly sleeved with screw block 703, both ends of the outside of connecting column 702 are respectively sleeved with sleeve block 704 and auxiliary block 705, the inside of sleeve block 704 and auxiliary block 705 is penetrated with support column 706, and one end of support column 706 is penetrated with screw block 703 and is fixedly connected with one side of drive box 5, both sides of screw block 703 are movably connected with hinged arm 707, both sides of sleeve block 704 are movably connected with support arm 708, both sides of auxiliary block 705 are movably connected with connecting arm 709, and one end of connecting arm 709, support arm 708, hinged arm 707 is movably connected with inner positioning plate 710, the end of inner positioning plate 710 is arc-shaped, screw block 703 is threadedly connected with screw rod 701, screw block 703 does horizontal motion on screw rod 701, support column 706 is provided with two groups, for the limiting support of connecting column 702, auxiliary block 705, the outside of drive box 5 is provided with second positioning assembly, and second positioning assembly includes outer limiting mechanism 8, outer limiting mechanism 8 includes driven shaft 801, and driven shaft 801 is provided with one side of drive box 5, one end of driven shaft 801 is connected with auxiliary shaft 802, and the outside of auxiliary shaft 802 is sleeved with first embracing clamping arm 805, one side of auxiliary shaft 802 one side of drive box 5 is connected with transition shaft 803,A transverse pulley assembly 807 connects the auxiliary shaft 802 and the transition shaft 803. One end of the transition shaft 803 is connected to an adjusting member. The transverse pulley assembly 807 includes a drive pulley, a linkage pulley, and a drive belt. The drive pulley is sleeved on one end of the auxiliary shaft 802, and the linkage pulley is sleeved on one end of the transition shaft 803. A drive belt connects the drive pulley and the linkage pulley. The adjusting member includes a main gear 808 sleeved on one end of the transition shaft 803, and one side of the main gear 808 meshes with a pulley... The driven gear 809 has a drive shaft 804 running through its interior. A second clamping arm 806 is sleeved on the outer side of the drive shaft 804. Both the second clamping arm 806 and the first clamping arm 805 have inner limit blocks 810 connected to one side. The inner limit blocks 810 are made of rubber. The auxiliary rotating shaft 802 and the transition rotating shaft 803 rotate in the same direction, while the transition rotating shaft 803 and the drive shaft 804 rotate in opposite directions. Therefore, the drive shaft 804 and the auxiliary rotating shaft 802 rotate in opposite directions. In this embodiment, the hollow tube to be machined is fitted onto the outside of the inner limiting mechanism 7. The drive motor 11 rotates the machine shaft 1101, causing the lead screw 701 to rotate. The threaded block 703, connected to the lead screw 701, moves horizontally on the lead screw 701, moving it towards the side of the sleeve block 704. This causes the hinge arm 707 to extend outwards, and in conjunction with the support arm 708 and the inner positioning plate 710, pushes the inner positioning plate 710 outwards. The arc-shaped design of the end face of the inner positioning plate 710 allows the two sets of self-feeding guide mechanisms 10 to press against the inner wall of the hollow tube, achieving initial limiting. The operation is convenient. During this process, the longitudinal pulley assembly 12 allows the driven shaft 801 to rotate synchronously, further driving the auxiliary shaft 802 to rotate. The auxiliary shaft 802, in conjunction with the transverse pulley assembly 807, causes the transition shaft 803 to rotate synchronously, further transitioning the rotation... Shaft 803 drives the main gear 808 to rotate. The main gear 808 and the driven gear 809 mesh with each other. Even if the driven gear 809 and the linkage shaft 804 rotate in opposite directions, the first ring clamping arm 805 and the second ring clamping arm 806 will rotate in opposite directions to achieve clamping. That is, the two will encircle the hollow tube until the two sets of inner limit blocks 810 are in contact with the outer wall of the hollow tube, clamping it externally. This achieves double internal and external limiting of the hollow tube to be turned, which can further enhance the auxiliary positioning effect of the hollow tube, making the turning of the hollow tube more stable and more accurate. Then, the rotary motor 3 drives the rotary shaft 4 to rotate, which in turn drives the drive box 5 and the clamped hollow tube to rotate, so as to complete the convenient and efficient turning of the hollow tube. During this process, the guide post 6 will rotate synchronously in the guide groove 201 to limit and guide the rotation of the drive box 5, so as to ensure the stability of the rotation of the drive box 5.

[0017] Example 2

[0018] The embodiment is different from embodiment one. The self-feeding guide mechanism 10 is arranged, so that the hollow pipe to be turned can be automatically fed, replacing manual feeding, so that the hollow pipe feeding is more stable and accurate. Therefore, the following technical scheme is disclosed. For details, please refer to Figure 1 , Figure 4 , Figure 5 The inside of the turning workbench 1 is provided with a built-in cavity 9, and the inside of the built-in cavity 9 is provided with a self-feeding guide mechanism 10. The self-feeding guide mechanism 10 includes a driving motor 1001, and the driving motor 1001 is arranged inside the built-in cavity 9. One end of the driving motor 1001 is connected with a driving shaft 1002, and the outer sides of both ends of the driving shaft 1002 are sleeved with feeding gears 1003. The top ends of the feeding gears 1003 are engaged with feeding toothed plates 1004. The feeding toothed plates 1004 are connected with a connecting plate 1006, and the bottom end of the connecting plate 1006 is connected with a supporting block 1005. One end of the supporting block 1005 is connected with the inner wall of the built-in cavity 9. The top end of the connecting plate 1006 is connected with the bottom end of a displacement block 13. The feeding toothed plates 1004 move horizontally, so that the connecting plate 1006 slides horizontally on the supporting block 1005. The supporting block 1005 is slidingly connected with the connecting plate 1006. In use, the driving motor 1001 drives the driving shaft 1002 to rotate, and drives the two groups of feeding gears 1003 to rotate synchronously. The mutual meshing action of the feeding gears 1003 and the feeding toothed plates 1004 can make the feeding toothed plates 1004 and the connecting plate 1006 move horizontally, and make the connecting plate 1006 slide on the supporting block 1005. The supporting block 1005 limits and guides the movement of the connecting plate 1006 and the feeding toothed plates 1004, further drives the displacement block 13 to slide in the active groove 101, and makes the auxiliary frame 2 move horizontally. Thus, the hollow pipe after positioning can be automatically fed, replacing manual feeding, effectively reducing the need for manual operation. The hollow pipe after positioning is pushed to the turning part, realizing turning of the hollow pipe at different positions, and being convenient and efficient to operate.

[0019] It should be understood that the terms "center", "longitudinal", "transverse", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like refer to the orientation or positional relationship shown in the drawings, which are simplified descriptions for the convenience of describing the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the scope of protection of the present application. The standard parts used in the present application can be purchased from the market, and the special-shaped parts can be ordered according to the description and drawings. The specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art. The mechanical parts and equipment adopt the conventional type in the prior art. The circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0020] The content not described in detail in the specification belongs to the prior art known to those skilled in the art. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements for part of the technical features, as long as they are within the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made shall be included in the protection scope of the present application.

Claims

1. A turning auxiliary device with double positioning function, comprising a turning workbench (1), an auxiliary frame (2), the top end of the turning workbench (1) is connected with the auxiliary frame (2), the turning workbench (1) is provided with a movable slot (101), the bottom end of the auxiliary frame (2) is connected with a displacement block (13), the displacement block (13) moves in the movable slot (101), the auxiliary frame (2) and the turning workbench (1) constitute a movable connection; characterized in that Further comprising: One side of the auxiliary frame (2) is connected with a rotary motor (3), one end of the rotary motor (3) is connected with a rotary shaft (4), one end of the rotary shaft (4) is connected with a drive box (5), the inside of the drive box (5) is provided with a double positioning drive assembly, one side of the drive box (5) is provided with a first positioning assembly, and the first positioning assembly comprises an inner limiting mechanism (7); Wherein, the inner limiting mechanism (7) comprises a lead screw (701), the lead screw (701) is arranged on one side of the drive box (5), one end of the lead screw (701) is connected with a connecting column (702), the outer side of the lead screw (701) is threadedly sleeved with a threaded block (703), the outer sides of the two ends of the connecting column (702) are respectively sleeved with a sleeving block (704) and an auxiliary block (705), the inside of the sleeving block (704) and the auxiliary block (705) penetrates a supporting column (706), one end of the supporting column (706) penetrates the threaded block (703) and is fixedly connected with one side of the drive box (5), the two sides of the threaded block (703) are movably connected with a hinged arm (707), the two sides of the sleeving block (704) are movably connected with a supporting arm (708), the two sides of the auxiliary block (705) are movably connected with a connecting arm (709), and one end of the connecting arm (709), the supporting arm (708) and the hinged arm (707) are movably connected with an inner positioning plate (710), the end portions of the inner positioning plate (710) are arc-shaped; The outside of the drive box (5) is provided with a second positioning assembly, and the second positioning assembly comprises an outer limiting mechanism (8).

2. The turning auxiliary device with double positioning function according to claim 1, characterized in that: The threaded block (703) and the lead screw (701) are threadedly connected, the threaded block (703) moves horizontally on the lead screw (701), the supporting column (706) is provided with two groups for limiting and supporting the connecting column (702) and the auxiliary block (705).

3. The turning auxiliary device with double positioning function according to claim 1, characterized in that: The outer limiting mechanism (8) comprises a driven rotating shaft (801), and the driven rotating shaft (801) is arranged on one side of the drive box (5), one end of the driven rotating shaft (801) is connected with an auxiliary rotating shaft (802), the outer side of the auxiliary rotating shaft (802) is sleeved with a first embracing clamping arm (805), one side of the drive box (5) on one side of the auxiliary rotating shaft (802) is connected with a transition rotating shaft (803), a lateral belt pulley assembly (807) is connected between the auxiliary rotating shaft (802) and the transition rotating shaft (803), one end of the transition rotating shaft (803) is connected with a direction adjusting member; The transverse belt wheel assembly (807) comprises a transmission wheel, a linkage wheel and a driving belt, the transmission wheel is sleeved on one end of the auxiliary rotating shaft (802), the linkage wheel is sleeved on one end of the transition rotating shaft (803), and the transmission wheel and the linkage wheel are connected by the driving belt.

4. The turning auxiliary device with double positioning function according to claim 3, characterized in that: The direction adjusting member comprises a main gear (808) sleeved on one end of the transition rotating shaft (803), one side of the main gear (808) is engaged with a driven gear (809), the inside of the driven gear (809) penetrates the linkage shaft (804), the outside of the linkage shaft (804) is sleeved with a second embracing clamping arm (806), one side of the second embracing clamping arm (806) and the first embracing clamping arm (805) is connected with an inner limiting block (810), and the inner limiting block (810) is made of rubber. The auxiliary rotating shaft (802) and the transition rotating shaft (803) have the same direction, the transition rotating shaft (803) and the linkage shaft (804) have opposite directions, and the linkage shaft (804) and the auxiliary rotating shaft (802) have opposite directions.

5. The turning auxiliary device with double positioning function according to claim 1, characterized in that: The double-positioning driving assembly comprises a linkage motor (11) arranged in the driving box (5), one end of the linkage motor (11) is connected with a motor shaft (1101), one end of the motor shaft (1101) is connected with one end of the screw rod (701), the inside of the driving box (5) below the motor shaft (1101) is connected with a driven rotating shaft (801), and the driven rotating shaft (801) and the motor shaft (1101) are connected with a longitudinal belt wheel assembly (12), and the motor shaft (1101) and the longitudinal belt wheel assembly (12) are synchronously driven. The longitudinal belt wheel assembly (12) comprises two groups of belt pulleys and a transmission belt, the two groups of belt pulleys are sleeved on the motor shaft (1101) and the driven rotating shaft (801) respectively, and the belt pulleys are connected by the transmission belt.

6. The turning auxiliary device with double positioning function according to claim 1, characterized in that: The turning workbench (1) is internally provided with an embedded cavity (9), and the embedded cavity (9) is internally provided with a self-feeding material guiding mechanism (10). The self-feeding material guiding mechanism (10) comprises a driving motor (1001), and the driving motor (1001) is arranged in the embedded cavity (9). One end of the driving motor (1001) is connected with a driving shaft (1002), and the two ends of the driving shaft (1002) are sleeved with feeding gears (1003) on the outside. The top ends of the feeding gears (1003) are engaged with feeding toothed plates (1004), the feeding toothed plates (1004) are connected with a connecting plate (1006), and the bottom end of the connecting plate (1006) is connected with a supporting block (1005). One end of the supporting block (1005) is connected with the inner wall of the embedded cavity (9), and the top end of the connecting plate (1006) is connected with the bottom end of a displacement block (13).

7. The turning auxiliary device with double positioning function according to claim 6, characterized in that: The feeding toothed plates (1004) move horizontally, so that the connecting plate (1006) slides horizontally on the supporting block (1005), and the supporting block (1005) and the connecting plate (1006) are slidingly connected.

8. The turning auxiliary device with double positioning function according to claim 1, characterized in that: The drive box (5) one side both ends are connected with guide column (6), the side of the auxiliary frame (2) is provided with the guide groove (201) of cross section annular, the groove width of the guide groove (201) and the outer diameter of guide column (6) are mutually matched, the guide column (6) does circular movement in guide groove (201).

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