A double-ended fixture structure

Abstract

The present invention provides a double-end fixture structure, which relates to the field of laser cutting and includes a fixture device, a continuous material threaded drive rod and a carriage; the continuous material threaded drive rod is meshed and connected in a threaded through hole of the carriage; the fixture device includes a rotating shell, a baffle, a sliding cylinder, a motor bracket, a driving gear, a clamping motor, a rotating cylinder, a spring, a guide post and a clamping block; the rear side surface of the rotating shell is welded and connected with the motor bracket, the rear side surface of the motor bracket is bolted with the clamping motor, a driving gear is installed on the motor shaft of the clamping motor, and the rotating shell is welded and connected with the spring; the spring is welded with the clamping block; the outer side surface of the rotating cylinder is meshed and connected with the sliding cylinder; through the settings of the fixture device, the continuous material threaded drive rod and the carriage, the double-end stable clamping and fixing of the metal pipe fitting during laser cutting are realized, the cutting efficiency of the metal pipe fitting is improved, and the problems of unstable cutting of the metal pipe fitting and low cutting processing efficiency caused by manual pulling of the pipe fitting for continuous material in traditional laser cutting are solved.

Description

Technical Field

[0001] The present invention belongs to the field of laser cutting, and more specifically, particularly relates to a double-end fixture structure. Background Art

[0002] Laser cutting is to guide a high-power and high-density laser beam through optical components to be focused and irradiated on the surface of the workpiece to be cut and processed, so that the irradiated workpiece material can be quickly melted and ablated, thereby realizing the cutting and separation of the workpiece. At present, when using laser technology to cut metal pipe workpieces, it is necessary to manually insert and clamp the pipe workpiece on a rotatable fixture plate. The fixture plate rotates to drive the pipe workpiece to perform circular path cutting. After cutting, the cut metal pipe finished product falls into the blanking box by gravity. The fixture plate releases the remaining pipe workpiece, and then the cutting worker pulls the remaining pipe workpiece to the cutting position. The fixture plate clamps the remaining pipe again to prepare for the second cutting. It can be seen that during the cutting process of the metal pipe workpiece, only a set of fixture plates is used to clamp and fix the metal pipe. The end of the metal pipe extending out of the fixture plate is in a suspended state. When the laser cuts the metal pipe in a circular manner, the metal at the cutting position is in a molten state. The finished pipe fittings during cutting are prone to deformation under the influence of gravity, resulting in uneven cut surfaces of the pipe fittings. In addition, the process of pulling and feeding the metal pipe workpiece requires manual operation. Since the metal pipe is relatively heavy, the manual pulling process of the metal pipe is time-consuming and laborious, reducing the processing efficiency of the pipe workpiece for transposition cutting. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention provides a double-end fixture structure to solve the problems of unstable cutting of metal pipe fittings and low cutting processing efficiency caused by manual pulling and feeding of pipe fittings in traditional laser cutting.

[0004] The present invention provides a double-end fixture structure, including a bottom plate; a continuous feeding drive motor is connected to the rear side surface of the bottom plate by bolts, a continuous feeding screw drive rod is installed on the motor shaft of the continuous feeding drive motor, a discharging motor is connected to the front side surface of the bottom plate by bolts, a discharging screw drive rod is installed on the motor shaft of the discharging motor, a waste chip tray is placed on the upper side surface of the bottom plate, a base is connected to the upper side surface of the bottom plate by bolts, a flipping seat is hinged to the upper side surface of the base, a fixing frame is connected to the upper side surface of the flipping seat by bolts, and a support frame is welded to the front side surface of the fixing frame; further including a moving frame, a fixture device, a metal pipe support device and a controller; the number of the fixture devices is two groups, and the fixture device includes a rotating shell, a baffle plate, a sliding cylinder, a motor frame, a driving gear, a clamping motor, a rotating cylinder, a spring, a guide post and a clamping block; a motor frame is welded to the rear side surface of the rotating shell, a clamping motor is connected to the rear side surface of the motor frame by bolts, a driving gear is installed on the motor shaft of the clamping motor, a baffle plate is connected to the front side surface of the rotating shell by bolts, the rotating shell is welded to the guide post, and the rotating shell is welded to the spring; the spring is welded to the clamping block; a metal pipe fitting is inserted into the inner side of the rotating cylinder, and the outer side surface of the rotating cylinder is meshed with the sliding cylinder; the number of the metal pipe support devices is three groups, and the metal pipe support device includes a support plate, a roller, a bracket, a knob, a threaded rod and a sliding rod; a circular deep hole is provided on the upper side surface of the support plate, two groups of symmetrically distributed groove structures are provided on the inner side wall of the deep hole, and a support frame is welded to the lower side surface of the support plate; the top end of the sliding rod is welded to the bracket, the bracket is a groove structure, and a roller is rotatably connected to the inner side of the bracket groove; the bottom end of the threaded rod is welded to the knob; a through hole structure penetrating through the front and rear is provided on the rear side surface of the fixing frame, and the rotating shell is rotatably connected to the through hole of the fixing frame; a connecting rod is hinged to the front side surface of the fixing frame, and a slider is hinged to the bottom end of the connecting rod; a through hole penetrating through the front and rear is provided on the front side surface of the moving frame, and the rotating shell of another group of fixture devices is rotatably connected to the through hole of the moving frame, a sliding frame is connected to the lower side surface of the moving frame by bolts, support frames are welded to both the front side surface and the rear side surface of the moving frame, a circular hole groove is provided on the rear side surface of the moving frame, a through hole is provided at the bottom of the groove, and a rotating motor is connected to the bottom of the groove of the moving frame by bolts; the motor shaft of the rotating motor penetrates through the through hole at the bottom of the circular hole groove of the moving frame, and a driving gear is installed on the motor shaft of the rotating motor.

[0005] In at least some embodiments, through holes are provided at the central positions of both the front side surface and the rear side surface of the rotating shell, two groups of grooves are provided on the inner side surface of the rotating shell, an external tooth structure is provided on the outer side surface of the rotating shell, and the driving gear is meshed with the external tooth structure of the rotating shell.

[0006] In at least some embodiments, the sliding cylinder is a through cylinder structure, a threaded structure is provided on the inner side surface of the sliding cylinder, two groups of symmetrically distributed convex strip structures are provided on the outer side surface of the sliding cylinder, and the convex strip structures of the sliding cylinder are embedded in the two groups of grooves on the inner side surface of the rotating shell.

[0007] In at least some embodiments, the rotary drum is a cylindrical structure that is penetrated from front to back. The outer side surface of the rotary drum is successively provided with an external tooth structure and a thread structure from front to back. The external tooth structure of the rotary drum is meshed and connected to the outer side surface of the driving gear, and the thread structure of the rotary drum is meshed and connected to the thread structure on the inner side surface of the sliding cylinder.

[0008] In at least some embodiments, the number of the clamping blocks is four groups. The clamping blocks are distributed in an annular array around the central axis of the sliding cylinder. The clamping blocks are provided with convex columns, and the convex columns are provided with hole grooves. The guide posts are embedded in the hole grooves of the convex columns of the clamping blocks, and the guide posts are slidably connected to the clamping blocks through the hole grooves of the convex columns. The rear side surface of each group of clamping blocks is provided with an inclined surface structure, and the front end of the inner side surface of the sliding cylinder is attached to the inclined surface structure of the clamping blocks.

[0009] In at least some embodiments, the lower side surface of the sliding frame is provided with a convex block, and the front side surface of the convex block is provided with a thread through hole structure that is penetrated from front to back. The outer side surface of the continuous feeding thread driving rod is threadedly meshed and connected in the thread through hole of the convex block of the sliding frame.

[0010] In at least some embodiments, the outer side surface of the sliding rod is provided with two groups of convex strips. The convex strips of the sliding rod are embedded in the deep hole grooves of the support plate. The lower side surface of the sliding rod is provided with a thread through hole structure that is penetrated from top to bottom at the central position. The outer side surface of the threaded rod is threadedly meshed and connected in the thread through hole of the sliding rod.

[0011] In at least some embodiments, the front side surface of the slider is provided with a thread through hole that is penetrated from front to back at the central position. The outer side surface of the unloading thread driving rod is threadedly meshed and connected in the thread through hole of the slider.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. In the present invention, the threaded meshing transmission structure formed by the unloading motor driving the unloading thread driving rod at the threaded through hole of the slider enables the threaded driving rod to drive the slider to move back and forth, so that the sliding link motion mechanism formed by the hinge connection of the slider, the connecting rod, the fixing frame and the flipping seat operates. When the clamping device rotatably connected in the through hole of the fixing frame releases the metal pipe fitting, the slider pulls the fixing frame forward to flip through the connecting rod, so that the metal pipe fitting slides out from the fixing frame relying on gravity, realizing the automatic unloading work of the metal pipe fitting.

[0014] 2. In the present invention, by using the threaded meshing transmission structure formed by the continuous feeding thread driving rod and the sliding frame, the clamping device rotatably connected to the moving frame carries the remaining metal pipe fitting after cutting and moves it to be inserted into the clamping device rotatably connected in the through hole of the fixing frame, realizing the automatic continuous feeding work of the metal pipe fitting, abandoning the traditional manual pulling and continuous feeding method, saving the use of manpower, and improving the continuous cutting efficiency of the metal pipe fitting.

[0015] 3. In the present invention, a fixture device is provided. Through the threaded engagement structure between the sliding cylinder and the rotating cylinder driven by the clamping motor in the two groups of fixture devices, the sliding cylinder pushes the inclined surface of the clamping block to clamp both ends of the metal pipe fitting, achieving stable clamping and fixing of the metal pipe fitting during laser cutting and avoiding the deformation of the cutting surface caused by one end of the metal pipe fitting being suspended. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present invention.

[0017] Figure 2 is a schematic right-view structural diagram of the present invention.

[0018] Figure 3 is a schematic front-view structural diagram of the present invention.

[0019] Figure 4 is a schematic top-view structural diagram of the present invention.

[0020] Figure 5 is a schematic structural diagram of the fixture device of the present invention.

[0021] Figure 6 is a schematic rear-right-view structural diagram of the fixture device of the present invention.

[0022] Figure 7 is a schematic sectional structural diagram of the fixture device of the present invention.

[0023] Figure 8 is a schematic structural diagram of the metal pipe support device of the present invention.

[0024] Figure 9 is a schematic front-view structural diagram of the metal pipe support device of the present invention.

[0025] Figure 10 is a schematic sectional structural diagram of the metal pipe support device of the present invention.

[0026] Figure 11 is a schematic sectional structural diagram of the present invention.

[0027] Reference Signs:

[0028] 1. Bottom plate;

[0029] 2. Unloading motor;

[0030] 3. Unloading threaded drive rod;

[0031] 4. Fixed frame;

[0032] 5. Moving frame;

[0033] 6. Scrap tray;

[0034] 7. Feeding threaded drive rod;

[0035] 8. Carriage

[0036] 9. Metal pipe fitting

[0037] 10. Connecting rod

[0038] 11. Slide block

[0039] 12. Tipping seat

[0040] 13. Base

[0041] 14. Support frame

[0042] 15. Rotating motor

[0043] 16. Driving gear

[0044] 17. Clamping device; 1701. Rotating shell; 1702. Baffle; 1703. Slide cylinder; 1704. Motor frame; 1705. Driving gear; 1706. Clamping motor; 1707. Rotating cylinder; 1708. Spring; 1709. Guide post; 1710. Clamping block

[0045] 18. Feeding driving motor

[0046] 19. Metal pipe support device; 1901. Support plate; 1902. Roller; 1903. Bracket; 1904. Knob; 1905. Threaded rod; 1906. Slide rod Detailed implementation mode

[0047] The following further describes the implementation mode of the present invention in detail in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0048] Such as Figures 1-11As shown in the figure, the present invention provides a double-end fixture structure, including a bottom plate 1; a feeding drive motor 18 is connected to the rear side of the bottom plate 1 by bolts, a feeding threaded drive rod 7 is installed on the motor shaft of the feeding drive motor 18, a discharging motor 2 is connected to the front side of the bottom plate 1 by bolts, a discharging threaded drive rod 3 is installed on the motor shaft of the discharging motor 2, a waste chip tray 6 is placed on the upper side of the bottom plate 1, a base 13 is connected to the upper side of the bottom plate 1 by bolts, a turning seat 12 is hinged to the upper side of the base 13, a fixing frame 4 is connected to the upper side of the turning seat 12 by bolts, and a support frame 14 is welded to the front side of the fixing frame 4; further including a moving frame 5, a fixture device 17 and a metal pipe support device 19; the number of the fixture devices 17 is two groups, and the fixture device 17 includes a rotating shell 1701, a baffle 1702, a sliding cylinder 1703, a motor frame 1704, a driving gear 1705, a clamping motor 1706, a rotating cylinder 1707, a spring 1708, a guide post 1709 and a clamping block 1710; a motor frame 1704 is welded to the rear side of the rotating shell 1701, a clamping motor 1706 is connected to the rear side of the motor frame 1704 by bolts, a driving gear 1705 is installed on the motor shaft of the clamping motor 1706, a baffle 1702 is connected to the front side of the rotating shell 1701 by bolts, the rotating shell 1701 is welded to the guide post 1709, and the rotating shell 1701 is welded to the spring 1708; the spring 1708 is welded to the clamping block 1710; a metal pipe fitting 9 is inserted inside the rotating cylinder 1707, and the outer side of the rotating cylinder 1707 is meshed with the sliding cylinder 1703; the number of the metal pipe support devices 19 is three groups, and the metal pipe support device 19 includes a support plate 1901, a roller 1902, a bracket 1903, a knob 1904, a threaded rod 1905 and a sliding rod 1906; a circular deep hole is provided on the upper side of the support plate 1901, two groups of symmetrically distributed groove structures are provided on the inner side wall of the deep hole, and a support frame 14 is welded to the lower side of the support plate 1901; the top end of the sliding rod 1906 is welded to the bracket 1903, the bracket 1903 is a groove structure, and a roller 1902 is rotatably connected inside the groove of the bracket 1903; the bottom end of the threaded rod 1905 is welded to the knob 1904; a through hole structure penetrating through the front and rear is provided on the rear side of the fixing frame 4, and the rotating shell 1701 is rotatably connected inside the through hole of the fixing frame 4; a connecting rod 10 is hinged to the front side of the fixing frame 4, and a slider 11 is hinged to the bottom end of the connecting rod 10; a through hole penetrating through the front and rear is provided on the front side of the moving frame 5, and the rotating shell 1701 of another group of the fixture device 17 is rotatably connected inside the through hole of the moving frame 5, a sliding frame 8 is connected to the lower side of the moving frame 5 by bolts, support frames 14 are welded to both the front side and the rear side of the moving frame 5, a circular hole groove is provided on the rear side of the moving frame 5, a through hole is provided at the bottom of the groove, and a rotating motor 15 is connected to the bottom of the groove of the moving frame 5 by bolts; the motor shaft of the rotating motor 15 penetrates through the through hole at the bottom of the circular hole groove of the moving frame 5, and a driving gear 16 is installed on the motor shaft of the rotating motor 15.

[0049] In the embodiments of the present disclosure, through holes are provided at the central positions of the front and rear sides of the rotating shell 1701. Two groups of grooves are provided on the inner side surface of the rotating shell 1701, and an external tooth structure is provided on the outer side surface of the rotating shell 1701. The driving gear 16 is meshed and connected to the external tooth structure of the rotating shell 1701, so that the rotating motor 15 drives the rotating shell 1701 to rotate through the gear meshing transmission structure composed of the driving gear 16 and the external teeth of the rotating shell 1701, and the clamping device 17 drives the metal pipe fitting 9 to perform circumferential rotation cutting work.

[0050] In the embodiments of the present disclosure, the sliding cylinder 1703 is a cylinder structure that is penetrated from front to back. A threaded structure is provided on the inner side surface of the sliding cylinder 1703, and two groups of rib structures that are symmetrically distributed up and down are provided on the outer side surface of the sliding cylinder 1703. The rib structures of the sliding cylinder 1703 are embedded in the two groups of grooves on the inner side surface of the rotating shell 1701, so that the sliding cylinder 1703 slides forward and backward in a directional manner along the grooves of the rotating shell 1701.

[0051] In the embodiments of the present disclosure, the rotating cylinder 1707 is a cylinder structure that is penetrated from front to back. An external tooth structure and a threaded structure are sequentially provided on the outer side surface of the rotating cylinder 1707 from front to back. The external tooth structure of the rotating cylinder 1707 is meshed and connected to the outer side surface of the driving gear 1705, and the threaded structure of the rotating cylinder 1707 is meshed and connected to the threaded structure on the inner side surface of the sliding cylinder 1703. The driving gear 1705 drives the rotating cylinder 1707 to rotate through the external tooth structure of the rotating cylinder 1707, and the rotating cylinder 1707 drives the sliding cylinder 1703 to slide forward and backward through the threaded structure.

[0052] In the embodiments of the present disclosure, the number of clamping blocks 1710 is four groups. The clamping blocks 1710 are distributed in an annular array around the central axis of the sliding cylinder 1703. Convex columns are provided on the clamping blocks 1710, and hole grooves are provided on the convex columns. The guide posts 1709 are embedded in the hole grooves of the convex columns of the clamping blocks 1710. The guide posts 1709 and the clamping blocks 1710 are slidably connected through the hole grooves of the convex columns. A bevel structure is provided on the rear side surface of each group of clamping blocks 1710. The front end of the inner side surface of the barrel of the sliding cylinder 1703 is attached to the bevel structure of the clamping blocks 1710, so that the sliding cylinder 1703 drives the four groups of clamping blocks 1710 to slide inward or outward along the four groups of guide posts 1709 respectively in a directional manner during the forward and backward movement process, and completes the stable clamping or loosening work of the clamping blocks 1710 on the metal pipe fitting 9.

[0053] In the embodiments of the present disclosure, a convex block is provided on the lower side surface of the sliding frame 8. A threaded through hole structure that is penetrated from front to back is provided on the front side surface of the convex block. The outer side surface of the continuous feeding threaded drive rod 7 is threadedly meshed and connected in the threaded through hole of the convex block of the sliding frame 8. The continuous feeding threaded drive rod 7 drives the moving frame 5 bolted to the upper side surface of the sliding frame 8 to move forward and backward, so that the clamping device 17 rotatably connected to the moving frame 5 drives the remaining metal pipe fitting 9 after cutting to automatically feed and continue the feeding work.

[0054] In the embodiment of the present disclosure, two groups of ridges are provided on the outer side surface of the sliding rod 1906. The ridges of the sliding rod 1906 are embedded in the deep hole grooves of the support plate 1901. A threaded through-hole structure that penetrates up and down is provided at the center position of the lower side surface of the sliding rod 1906. The outer side surface of the threaded rod 1905 is threadedly engaged in the threaded through-hole of the sliding rod 1906, so that the threaded rod 1905 drives the sliding rod 1906 to move vertically up and down along the deep hole groove of the support plate 1901, and the supporting height of the roller 1902 for the metal pipe fitting 9 is changed according to the pipe diameter of the metal pipe fitting 9, so that the central axis of the metal pipe fitting 9 with different pipe diameters is flush with the central axis of the rotating cylinder 1707, avoiding that the central axis of the metal pipe fitting 9 is higher than the central axis of the rotating cylinder 1707, resulting in the four clamping blocks 1710 being unable to stably center and clamp the metal pipe fitting 9.

[0055] In the embodiment of the present disclosure, a threaded through-hole that penetrates front and back is provided at the center position of the front side surface of the slider 11. The outer side surface of the unloading threaded drive rod 3 is threadedly engaged in the threaded through-hole of the slider 11. The unloading threaded drive rod 3 drives the slider 11 to move back and forth, so that the slider 11 drives the fixed frame 4 to flip back and forth through the articulated connecting rod 10, and the clamped metal pipe fitting 9 is unloaded by flipping after being cut by the clamping device 17.

[0056] The specific usage mode and function of this embodiment are as follows:

[0057] When the present invention performs laser cutting of metal pipes, first insert the metal pipe fitting 9 into the rotating cylinders 1707 of the two fixture devices 17, and then manually turn the knob 1904 according to the diameter of the metal pipe fitting 9. The knob 1904 drives the threaded rod 1905 to rotate. The threaded rod 1905 drives the sliding rod 1906 engaged with its outer side along the deep hole groove of the support plate 1901 to move vertically up and down, so that the central axis of the metal pipe fitting 9 is aligned and coincides with the central axis of the rotating cylinder 1707. Then, the two clamping motors 1706 are started synchronously. The clamping motors 1706 drive the driving gears 1705 to rotate. Since the driving gears 1705 are engaged with the outer tooth structure of the rotating cylinders 1707, the driving gears 1705 drive the rotating cylinders 1707 to rotate. Since the threaded structure on the outer side of the rotating cylinder 1707 is engaged with the threaded structure on the inner side of the sliding cylinder 1703, the rotating cylinder 1707 drives the sliding cylinder 1703 to move forward along the groove on the inner side of the rotating shell 1701 during rotation. The front edge position of the inner side of the sliding cylinder 1703 simultaneously pushes the inclined surface structures of the four clamping blocks 1710. The four clamping blocks 1710 move inward synchronously along the guide posts 1709 until the four clamping blocks 1710 fit against the outer side of the metal pipe fitting 9, and the clamping blocks 1710 perform the clamping work on the metal pipe fitting 9. Then, the laser cutting head of the external laser cutting machine is aligned with the cutting part of the metal pipe fitting 9 for irradiation and cutting. At this time, the rotating motor 15 drives the driving gear 16 to rotate. The driving gear 16 drives the rotating shell 1701 to rotate through the outer tooth structure on the outer side of the rotating shell 1701, so that the fixture device 17 drives the clamped metal pipe fitting 9 to rotate and cut. After cutting, the unloading motor 2 drives the unloading threaded drive rod 3 to rotate. Since the thread on the outer side of the unloading threaded drive rod 3 meshes with the slider 11, the unloading threaded drive rod 3 drives the slider 11 to slide forward. The slider 11 drives the fixed frame 4 to flip forward through the connecting rod 10 hinged on its upper side. The clamping motor 1706 in the fixture device 17 rotatably connected in the through hole of the fixed frame 4 drives the driving gear 1705 to reverse. The driving gear 1705 drives the rotating cylinder 1707 to rotate. The rotating cylinder 1707 drives the sliding cylinder 1703 to slide backward. The four clamping blocks 1710 move outward along the guide posts 1709 under the pulling of the springs 1708, and the four clamping blocks 1710 release the metal pipe fitting 9. Since the fixed frame 4 is in a forward-tilted state, the cut finished metal pipe fitting 9 slides out of the fixture device 17 relying on gravity. Then, the unloading motor 2 drives the unloading threaded drive rod 3 to rotate in the reverse direction, and the slider 11 pushes the connecting rod 10 to make the fixed frame 4 return to the upright state. Then, the feeding drive motor 18 drives the feeding threaded drive rod 7 to rotate. Since the thread on the outer side of the feeding threaded drive rod 7 meshes with the threaded through hole of the sliding frame 8, the feeding threaded drive rod 7 drives the sliding frame 8 to move in the direction of the fixed frame 4, so that the remaining metal pipe fitting 9 is inserted into the fixture device 17 rotatably connected to the fixed frame 4, and the fixture device 17 rotatably connected to the fixed frame 4 clamps the remaining metal pipe fitting 9.The clamping device 17 rotatably connected to the moving frame 5 releases the remaining metal pipe fittings 9. At this time, the rollers 1902 of the metal pipe support device 19 support and hold the metal pipe fittings 9. The feeding drive motor 18 drives the feeding threaded drive rod 7 to rotate in the reverse direction. The carriage 8 carries the moving frame 5 and retracts backward. The rollers 1902 slide on the outer side surface of the metal pipe fittings 9. Finally, the clamping device 17 rotatably connected to the moving frame 5 clamps the remaining metal pipe fittings 9, and the second cutting operation of the metal pipe fittings 9 starts, completing the automatic feeding and clamping operation of the metal pipe fittings 9.

[0058] The installation methods, connection methods or setting methods of all the above components are common mechanical methods, such as welding, threaded connection, screw connection, etc. And the specific structures, models and coefficient indexes of all its components are its own technologies, and any implementation that can achieve its beneficial effects can be carried out. The above-mentioned rotating motor 15, clamping motor 1706, and feeding drive motor 18 are all common devices on the market. When purchased and used, they only need to be connected according to the operation manual purchased together to be used, so they will not be elaborated here.

[0059] The technical solution of the present invention is not limited within the scope of the embodiments of the present invention. The technical content not described in detail in the present invention is well-known technology.

Claims

1. A double-ended fixture structure, comprising a bottom plate (1); a feeding driving motor (18) is connected to the rear side surface of the bottom plate (1) by bolts, a feeding threaded driving rod (7) is installed on the motor shaft of the feeding driving motor (18), a discharging motor (2) is connected to the front side surface of the bottom plate (1) by bolts, a discharging threaded driving rod (3) is installed on the motor shaft of the discharging motor (2), a waste chip tray (6) is placed on the upper side surface of the bottom plate (1), a base (13) is connected to the upper side surface of the bottom plate (1) by bolts, a flipping seat (12) is hinged to the upper side surface of the base (13), a fixing frame (4) is connected to the upper side surface of the flipping seat (12) by bolts, and a supporting frame (14) is welded to the front side surface of the fixing frame (4); characterized in that: It also includes a moving frame (5), a fixture device (17) and a metal pipe support device (19); the number of the fixture devices (17) is two groups, and the fixture device (17) includes a rotating shell (1701), a baffle (1702), a sliding cylinder (1703), a motor frame (1704), a driving gear (1705), a clamping motor (1706), a rotating cylinder (1707), a spring (1708), a guide post (1709) and a clamping block (1710); the rear side of the rotating shell (1701) is welded and connected with the motor frame (1704), the rear side of the motor frame (1704) is bolted with the clamping motor (1706), the driving gear (1705) is installed on the motor shaft of the clamping motor (1706), the front side of the rotating shell (1701) is bolted with the baffle (1702), the rotating shell (1701) is welded and connected with the guide post (1709), and the rotating shell (1701) is welded and connected with the spring (1708); the spring (1708) is welded and connected with the clamping block (1710); a metal pipe fitting (9) is inserted inside the rotating cylinder (1707), and the outer side of the rotating cylinder (1707) is meshed and connected with the sliding cylinder (1703); the number of the metal pipe support devices (19) is three groups, and the metal pipe support device (19) includes a support plate (1901), a roller (1902), a bracket (1903), a knob (1904), a threaded rod (1905) and a sliding rod (1906); a circular deep hole is provided on the upper side of the support plate (1901), and two groups of symmetrically distributed groove structures are provided on the inner side wall of the deep hole. The lower side of the support plate (1901) is welded and connected with a support frame (14); the top end of the sliding rod (1906) is welded and connected with the bracket (1903), the bracket (1903) is a groove structure, and the roller (1902) is rotatably connected inside the groove of the bracket (1903); the bottom end of the threaded rod (1905) is welded and connected with the knob (1904); a through hole structure penetrating through the front and back is provided on the rear side of the fixed frame (4), and the rotating shell (1701) is rotatably connected inside the through hole of the fixed frame (4); the front side of the fixed frame (4) is hinged with a connecting rod (10), and the bottom end of the connecting rod (10) is hinged with a slider (11); a through hole penetrating through the front and back is provided on the front side of the moving frame (5), and the rotating shell (1701) of another group of fixture devices (17) is rotatably connected inside the through hole of the moving frame (5). The lower side of the moving frame (5) is bolted with a sliding frame (8). The front side and the rear side of the moving frame (5) are both welded and connected with a support frame (14). A circular hole groove is provided on the rear side of the moving frame (5), and a through hole is provided at the bottom of the groove. The bottom of the groove of the moving frame (5) is bolted with a rotating motor (15); the motor shaft of the rotating motor (15) penetrates through the through hole at the bottom of the circular hole groove of the moving frame (5), and the driving gear (16) is installed on the motor shaft of the rotating motor (15).

2. The double-end fixture structure according to claim 1, wherein: Through holes are provided at the center positions of the front side and the rear side of the rotating shell (1701). Two groups of grooves are provided on the inner side surface of the rotating shell (1701). An external tooth structure is provided on the outer side surface of the rotating shell (1701). The driving gear (16) is meshed and connected to the external tooth structure of the rotating shell (1701).

3. The double-end fixture structure according to claim 1, characterized in that: The sliding cylinder (1703) is a cylinder structure that penetrates through from front to back. A threaded structure is provided on the inner side surface of the sliding cylinder (1703). Two groups of rib structures that are symmetrically distributed up and down are provided on the outer side surface of the sliding cylinder (1703). The rib structures of the sliding cylinder (1703) are embedded in the two groups of grooves on the inner side surface of the rotating shell (1701).

4. The double-end fixture structure according to claim 1, characterized in that: The rotating cylinder (1707) is a cylinder structure that penetrates through from front to back. An external tooth structure and a threaded structure are successively provided on the outer side surface of the rotating cylinder (1707) from front to back. The external tooth structure of the rotating cylinder (1707) is meshed and connected to the outer side surface of the driving gear (1705). The threaded structure of the rotating cylinder (1707) is meshed and connected to the threaded structure on the inner side surface of the sliding cylinder (1703).

5. The double-end fixture structure according to claim 1, wherein: The number of the clamping blocks (1710) is four groups. The clamping blocks (1710) are distributed in an annular array around the central axis of the sliding cylinder (1703). Convex columns are provided on the clamping blocks (1710), and hole grooves are provided on the convex columns. The guide posts (1709) are embedded in the hole grooves of the convex columns of the clamping blocks (1710). The guide posts (1709) and the clamping blocks (1710) are slidably connected through the hole grooves of the convex columns. An inclined surface structure is provided on the rear side surface of each group of clamping blocks (1710). The front end of the inner side surface of the barrel of the sliding cylinder (1703) is attached to the inclined surface structure of the clamping blocks (1710).

6. The double-end fixture structure according to claim 1, wherein: A convex block is provided on the lower side surface of the sliding frame (8). A threaded through-hole structure that penetrates through from front to back is provided on the front side surface of the convex block. The outer side surface of the continuous material threaded drive rod (7) is threadedly meshed and connected in the threaded through-hole of the convex block of the sliding frame (8).

7. The double-end fixture structure according to claim 1, wherein: Two groups of ribs are provided on the outer side surface of the sliding rod (1906). The ribs of the sliding rod (1906) are embedded in the deep-hole grooves of the support plate (1901). A threaded through-hole structure that penetrates through from top to bottom is provided at the center position of the lower side surface of the sliding rod (1906). The outer side surface of the threaded rod (1905) is threadedly meshed and connected in the threaded through-hole of the sliding rod (1906).

8. The double-end fixture structure according to claim 1, characterized in that: A threaded through-hole that penetrates through from front to back is provided at the center position of the front side surface of the slider (11). The outer side surface of the unloading threaded drive rod (3) is threadedly meshed and connected in the threaded through-hole of the slider (11).

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