Internal spinning equipment

Abstract

The invention belongs to the field of internal spinning equipment, and provides internal spinning equipment which comprises a base, a core mold and a follow-up mechanism, the core mold is placed on the base, a clamping assembly used for fixing the core mold is arranged on the outer side of the core mold, a centering alignment assembly used for secondary positioning of a blank plate is arranged on the inner side of the core mold, and the follow-up mechanism is arranged on the rear side of a pressing plate. The pressing plate is used for driving the centering and aligning assembly to relieve the positioning force on the blank plate and then dodging and descending along with the descending of the pressing plate; the clamping assembly is arranged on the base, core molds of different specifications can be conveniently disassembled and replaced, the precision of manually aligning a blank plate and the core molds is improved by arranging the limiting assembly and the centering alignment assembly, repeated adjustment is not needed, the production efficiency is improved, and the follow-up mechanism is arranged, so that the production efficiency is improved. And the positioning force on the blank plate is automatically released before spinning, the spinning head is abdicated, manual operation is not needed, and the automation and the production efficiency of equipment are improved.

Description

Technical Field

[0001] The invention belongs to the field of internal spinning equipment, in particular to an internal spinning equipment. Background Art

[0002] Internal spinning refers to a spinning method in which the spinning die is outside the blank and the spinning tool is inside the blank during the forming process. It is to fix the flat plate or hollow blank on the die of the spinning machine, and use a spinning wheel or a driving rod to pressurize the blank from the inside to cause local plastic deformation, thereby forming a hollow rotating body part of the required shape. This process is particularly suitable for manufacturing large-diameter parts, because the core mold required at this time is easier to process and the cost is not high;

[0003] In the internal spinning equipment of the prior art, the core mold is fixed to the frame by screws and other connecting parts during the spinning process, and then the flat hollow blank is placed on the core mold. The pressure plate is driven down by a hydraulic cylinder to compact the blank. The spinning head is driven down by the hydraulic cylinder and the motor drives the spinning head to rotate, thereby pressurizing the blank from the hollow part to cause local plastic deformation.

[0004] However, the internal spinning equipment mentioned above inevitably has some disadvantages. First, when the core mold needs to be replaced according to the spinning diameter, multiple connectors need to be disassembled and then the core mold needs to be replaced, which is a cumbersome operation. Secondly, during the discharge process, the hollow circle of the embryo plate needs to be manually aligned with the center of the core mold. Manual alignment often depends on the experience and skills of the operator, and it is difficult to achieve high-precision positioning requirements, which affects the quality and precision of the finished spinning products. Manual alignment takes a certain amount of time and effort, especially in mass production. This step will significantly affect production efficiency. In addition, if the positioning is inaccurate, repeated adjustments are required, further reducing production efficiency.

[0005] To this end, those skilled in the art have proposed an internal spinning device to solve the problems raised by the background technology. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides an internal spinning device to solve the problems that the existing internal spinning devices in the prior art are inconvenient to replace the core mold, the accuracy is poor when manually aligning the embryo plate and the core mold, and the production efficiency is affected.

[0007] An internal spinning device, comprising:

[0008] The base has pillars connected to the four corners of the top, a pressing plate is slidably arranged between the four pillars, a limiting component for initial positioning of the embryo plate is movably arranged at the bottom of the pressing plate, a pressing plate is connected to the top between the four pillars, a spinning component is arranged on the pressing plate, a hydraulic cylinder a is symmetrically installed at the bottom of the pressing plate, and the output end of the hydraulic cylinder a is connected to the pressing plate;

[0009] The core mold is placed on the base, and a clamping assembly for fixing the core mold is disposed on the outer side thereof, and a centering and alignment assembly for secondary positioning of the embryo plate is disposed on the inner side thereof; and

[0010] The follower mechanism is arranged at the rear side of the pressing plate, and is used for driving the centering and positioning assembly to release the positioning force on the embryo plate and then give way and descend as the pressing plate descends.

[0011] Preferably, the limiting assembly includes a limiting column, a placing plate and a limiting partition. The four corners of the bottom of the pressure plate are connected to the limiting columns. The limiting columns are arranged in a T-shaped structure. The vertical sections between the four limiting columns are slidably connected with the placing plates. The limiting partitions are symmetrically installed on the placing plates. Multiple groups of positioning holes are linearly and equidistantly provided on both sides of the top of the placing plates. Fastening bolts threadedly connected to the corresponding positioning holes are inserted at both ends of the top of the limiting partition. An inclined material guide section is arranged at the end of the limiting partition facing the feeding.

[0012] Preferably, the spinning assembly includes a hydraulic cylinder b, a movable plate, a motor, a rotating shaft, a cross beam, a fixed sleeve and a spinning head. Hydraulic cylinders b are symmetrically installed on both sides of the bottom of the pressure plate. The movable plate is installed on the output ends of the two hydraulic cylinders b. A motor is installed on the top of the movable plate. The output end of the motor is connected to a rotating shaft. One end of the rotating shaft passes through the pressure plate and is connected to a cross beam. Two sets of fixed sleeves are symmetrically arranged on the cross beam, and a spinning head is arranged at the bottom of the two fixed sleeves.

[0013] Preferably, the clamping assembly includes a fixed ring, a gear ring, a gear plate, a gear and a manual drive part. A fixed ring located on the outside of the core mold is provided on the top of the base. The outside of the fixed ring slides through multiple sets of gear plates at equal distances in a circular pattern. The top of the fixed ring is rotatably connected to a gear ring. One side of the gear ring is meshed with multiple sets of gears at equal distances in the circumferential direction. The multiple sets of gears are rotatably connected to the top of the base, and the multiple sets of gears are respectively meshed with multiple sets of gear plates.

[0014] Preferably, the manual drive component includes a vertical axis, a worm wheel, a horizontal axis and a worm segment. A cavity is opened inside the base, and the vertical axis and the horizontal axis are rotatably arranged in the cavity. The vertical axis and the horizontal axis are cross-staggered. The top end of the vertical axis passes through the base and is connected to the central axis of the corresponding gear. The middle of the vertical axis is connected to the worm wheel. One end of the horizontal axis passes through the base and is connected to a handwheel. A worm segment is arranged in the middle of the horizontal axis, and the worm segment is meshingly connected to the worm wheel.

[0015] Preferably, the centering and positioning assembly includes a strip plate, a fixed shaft, a rotating column, a fixed disk, a triangular disk, a pull rod, a limit seat, a movable rod, an inner tension column and a manual rotating part. A groove is provided in the base, and a strip plate is slidably arranged in the groove. Fixed shafts are symmetrically arranged at both ends of the strip plate. The fixed disk is embedded in the base and connected to the fixed shaft. The middle part of the top of the strip plate is rotatably connected to the rotating column through a bearing. A manual rotating part is arranged on the rotating column. The top of the rotating column passes through the fixed disk and is connected to the triangular disk. The four end points of the top of the triangular disk are symmetrically rotatably connected to the pull rods. The limit seat is equidistantly arranged on the top of the fixed disk in a circle, and a movable rod is slidably arranged inside it. One end of the top of the movable rod is rotatably connected to the pull rod, and the other end of the top of the movable rod is connected to the inner tension column.

[0016] Preferably, the manual rotating part includes a coupling a, a main bevel gear a and a slave bevel gear, a U-shaped frame is arranged inside the groove, the U-shaped frame is relatively located above the strip plate, a coupling a is rotatably passed through the vertical end of one side of the U-shaped frame, one end of the coupling a is connected to the main bevel gear a, the other end of the coupling a passes through the base and is connected to a handle, a slave bevel gear is rotatably arranged on the horizontal section of the U-shaped frame, the slave bevel gear is meshed and connected with the main bevel gear a, and the slave bevel gear is limited and slidably connected with the rotating column.

[0017] Preferably, the outer wall of the rotating column is symmetrically provided with strip-shaped grooves, and a protrusion embedded in the strip-shaped groove is integrally formed from the inner side of the conical tooth.

[0018] Preferably, a transverse plate is connected to one side of the strip plate, and the transverse plate and the strip plate form a planar T-shaped structure. Four groups of guide columns are symmetrically arranged in a rectangular sliding pattern between the strip plate and the transverse plate. The four groups of guide columns are all arranged on the inner side of the groove, and the four groups of guide columns are all sleeved with abutment springs located below the transverse plate and the strip plate.

[0019] Preferably, the follower mechanism includes a connecting shaft b, a main bevel gear b, a toothed disc, a pressure rod and a row of gears. A connecting shaft b slides through the vertical section on the other side of the U-shaped frame. One end of the connecting shaft b is connected to the main bevel gear b, which is meshed with the slave bevel gear. The other end of the connecting shaft b passes through the base and is connected to the toothed disc. Two groups of limit frames are symmetrically arranged at the bottom of the rear side of the base, and two groups of pressure rods for applying downward pressure to the cross plate are symmetrically arranged on the rear side of the pressure plate. The two groups of pressure rods are slidably arranged with the two groups of limit frames respectively, and the two groups of pressure rods are located on both sides of the toothed disc respectively. A row of gears is arranged on the inner side of one group of pressure rods, and the row of gears is meshed with the toothed disc when descending.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention provides a clamping assembly on the base, and with the cooperation of the fixed ring, the gear ring, the gear plate and the gear, the core mold can be circumferentially clamped from the bottom of the outer side of the core mold. At the same time, a manual driving part is provided. With the cooperation of the vertical shaft, the worm wheel, the horizontal shaft and the worm segment, by turning the hand wheel, multiple groups of gear plates can be driven to move synchronously outward, thereby releasing the clamping force on the core mold, making it convenient to disassemble and replace core molds of different specifications, thereby improving the convenience and speed of operation.

[0022] 2. The present invention places the hollow embryo plate to be spun on the placement plate by setting a limiting component and a centering and alignment component, and limits the two sides of the hollow embryo plate by using a limiting partition, so that the hollow circle on the hollow embryo plate is initially aligned with the core mold, and then the handle is turned, and the handle can drive the rotating column to rotate under the cooperation of the manual driving member. When the rotating column rotates, the three inner stretching columns can be driven to move outward through the cooperation of the triangular plate, the pull rod, the limiting seat and the moving rod. During the movement, the hollow plate can be limited, so that the hollow circle on it is further aligned with the center of the core mold, thereby improving the accuracy of manual alignment of the embryo plate and the core mold, and no repeated adjustment is required, thereby improving production efficiency;

[0023] 3. The present invention is provided with a follower mechanism. Before the start of spinning, it is necessary to use a hydraulic cylinder a to drive the pressure plate to fix the embryo plate. As the pressure plate descends, it will first engage with the toothed disk through the row of teeth on the side of the pressure rod, thereby driving the three inner tension columns to synchronously reset and move under the cooperation of the connecting shaft b, the main bevel gear b, and the slave bevel gear, thereby releasing the limiting force on the hollow embryo plate. Then, as the pressure plate continues to descend, the pressure rod will press down the cross plate, so that it drives the entire centering and positioning assembly to squeeze the abutment spring and move downward, thereby automatically making way for the spinning head. No manual operation is required, thereby improving the automation and production efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a front structural diagram of the present invention;

[0025] Figure 2 It is a rear view structural diagram of the present invention;

[0026] Figure 3 It is a structural diagram of the limiting component of the present invention;

[0027] Figure 4 It is a side sectional structural diagram of the base of the present invention;

[0028] Figure 5 It is a structural diagram of the core mold split of the present invention;

[0029] Figure 6 It is a partial side sectional structural diagram of the present invention;

[0030] Figure 7 This is a structural diagram of the embryo plate of the present invention in a compressed state;

[0031] Figure 8 For the present invention Figure 7 The local top section structure diagram;

[0032] Fig. 9 For the present invention Figure 8 The enlarged structure diagram of the local part;

[0033] Fig.10 For the present invention Fig. 9 A-part enlarged structure diagram.

[0034] In the figure:

[0035] 1. Base; 2. Pillar; 3. Press plate; 4. Top plate; 5. Hydraulic cylinder a; 6. Core mold; 7. Limit column; 8. Placement plate; 9. Limit partition; 10. Positioning hole; 11. Fastening bolt; 12. Oblique guide section; 13. Hydraulic cylinder b; 14. Moving plate; 15. Motor; 16. Rotating shaft; 17. Crossbeam; 18. Fixed sleeve; 19. Spinning head; 20. Fixed ring; 21. Gear ring; 22. Gear plate; 23. Gear; 24. Vertical shaft; 25. Worm wheel; 26. Horizontal shaft; 27. Worm section; 28. Cavity; 29. ​​Handwheel ; 30. Strip plate; 31. Fixed shaft; 32. Rotating column; 33. Fixed disk; 34. Triangular disk; 35. Pull rod; 36. Limit seat; 37. Moving rod; 38. Inner column; 39. Profile groove; 40. U-shaped frame; 41. Coupling a; 42. Main bevel gear a; 43. Sub bevel gear; 44. Handle; 45. Strip groove; 46. Bump; 47. Cross plate; 48. Guide column; 49. Abutment spring; 50. Coupling b; 51. Main bevel gear b; 52. Toothed disk; 53. Press rod; 54. Row of teeth; 55. Limit frame; 56. ;. DETAILED DESCRIPTION

[0036] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0037] As attached Figure 1 To Attachment Fig.10 As shown:

[0038] The present invention provides an internal spinning device, comprising a base 1, a core mold 6 and a follower mechanism, wherein the four corners at the top of the base 1 are connected to pillars 2, a pressure plate 3 is slidably arranged between the four pillars 2, a limiting component for initial positioning of a blank is movably arranged at the bottom of the pressure plate 3, a pressure plate 4 is connected to the top between the four pillars 2, a spinning component is arranged on the pressure plate 4, a hydraulic cylinder a5 is symmetrically installed at the bottom of the pressure plate 4, the output end of the hydraulic cylinder a5 is connected to the pressure plate 3, a core mold 6 is placed on the base 1, a clamping component for fixing the core mold 6 is arranged on the outer side of the core mold 6, a centering and alignment component for secondary positioning of the blank is arranged on the inner side of the core mold 6, and a follower mechanism is arranged on the rear side of the pressure plate 3, which is used to drive the centering and alignment component to release the positioning force on the blank as the pressure plate 3 descends and then give way and descend.

[0039] refer to Figure 3 The limiting assembly includes a limiting column 7, a placement plate 8 and a limiting partition 9. The four corners at the bottom of the pressure plate 3 are connected to the limiting column 7. The limiting column 7 is set to a T-shaped structure. The vertical section between the four limiting columns 7 is slidably connected with the placement plate 8. The limiting partition 9 is symmetrically installed on the placement plate 8. Both sides of the top of the placement plate 8 are linearly and equidistantly provided with multiple groups of positioning holes 10. Both ends of the top of the limiting partition 9 are interspersed with fastening bolts 11 threadedly connected to the corresponding positioning holes 10. The end of the limiting partition 9 facing the feeding is provided with an inclined guide section 12.

[0040] Among them, both the placement plate 8 and the pressure plate 3 are provided with a through hole with a diameter larger than the outer diameter of the core mold 6. During the spinning process, the hollow embryonic plate is placed on the placement plate 8 along the two inclined guide sections 12 so that it is located between the two limiting partitions 9. When the hydraulic cylinder a5 drives the pressure plate 3 to descend, it drives the placement plate 8 to descend synchronously through the limiting column 7 until the placement plate 8 passes through the core mold 6, so that the hollow embryonic plate is aligned and placed on the core mold 6, and the pressure plate 3 continues to descend until it is fixed and pressed on the core mold 6.

[0041] Furthermore, the position of the limiting partition plate 9 can be adjusted according to the width of the embryonic plate through the cooperation of the fastening bolts 11 and the positioning holes 10.

[0042] refer to Figure 1 and Figure 2 The spinning assembly includes a hydraulic cylinder b13, a movable plate 14, a motor 15, a rotating shaft 16, a cross beam 17, a fixed sleeve 18 and a spinning head 19. The hydraulic cylinders b13 are symmetrically installed on both sides of the bottom of the pressing plate 4. The movable plate 14 is installed on the output ends of the two hydraulic cylinders b13. The motor 15 is installed on the top of the movable plate 14. The output end of the motor 15 is connected to the rotating shaft 16. One end of the rotating shaft 16 passes through the pressing plate 4 and is connected to the cross beam 17. Two sets of fixed sleeves 18 are symmetrically arranged on the cross beam 17. A spinning head 19 is arranged at the bottom of the two fixed sleeves 18.

[0043] Among them, the movable plate 14 is driven to descend by the hydraulic cylinder b13, and the movable plate 14 drives the motor 15, the rotating shaft 16 and the crossbeam 17 to descend, so that the crossbeam 17 drives the spinning head 19 to contact the hollow embryo plate. At this time, the motor 15 is started, and the motor 15 drives the crossbeam 17 to rotate through the rotating shaft 16, thereby driving the spinning head 19 to spin the hollow embryo plate from the hollow part of the hollow embryo plate, so that the hollow embryo plate produces continuous local plastic deformation, thereby forming a hollow rotating body part of the required shape.

[0044] refer to Figure 4 and Figure 8 The clamping assembly includes a fixed ring 20, a gear ring 21, a tooth plate 22, a gear 23 and a manual drive part. A fixed ring 20 located on the outside of the core mold 6 is arranged on the top of the base 1. The outer side of the fixed ring 20 is circumferentially equidistantly sliding through multiple sets of tooth plates 22. The top of the fixed ring 20 is rotatably connected with a gear ring 21. One side of the gear ring 21 is circumferentially equidistantly meshed with multiple sets of gears 23. The multiple sets of gears 23 are all rotatably connected to the top of the base 1, and the multiple sets of gears 23 are respectively meshed with the multiple sets of tooth plates 22.

[0045] Among them, one group of gears 23 is driven to rotate by a manual driving part, and the gear 23 drives the gear ring 21 to rotate. When the gear ring 21 rotates, it drives other gears 23 to rotate synchronously, that is, the synchronous rotation of multiple groups of gears 23 is realized. When multiple groups of gears 23 rotate synchronously, they will drive the end of the tooth plate 22 to fix the core mold 6.

[0046] refer to Figure 8 The manual drive member includes a vertical shaft 24, a worm wheel 25, a horizontal shaft 26 and a worm segment 27. A cavity 28 is opened inside the base 1. The vertical shaft 24 and the horizontal shaft 26 are rotatably arranged in the cavity 28. The vertical shaft 24 and the horizontal shaft 26 are arranged in a cross-staggered manner. The top of the vertical shaft 24 passes through the base 1 and is connected to the central axis of the corresponding gear 23. The middle of the vertical shaft 24 is connected to the worm wheel 25. One end of the horizontal shaft 26 passes through the base 1 and is connected to a handwheel 29. A worm segment 27 is arranged in the middle of the horizontal shaft 26, and the worm segment 27 is meshed with the worm wheel 25.

[0047] Among them, by rotating the hand wheel 29, the hand wheel 29 drives the horizontal axis 26 and the worm segment 27 to rotate, and the worm segment 27 is meshed with the worm wheel 25. The meshing force drives the vertical axis 24 to rotate. The rotation of the vertical axis 24 drives the gear 23 above it to rotate. During the rotation of the gear 23, on the one hand, it will drive the tooth plate 22 to move, and on the other hand, it will drive the gear ring 21 to rotate. The rotation of the gear ring 21 will drive other gears 23 to rotate synchronously. During the rotation of multiple gears 23, multiple tooth plates 22 will be driven to move until the ends of multiple tooth plates 22 fix the core mold 6.

[0048] refer to Figure 6 and Figure 8The centering and positioning components include a strip plate 30, a fixed shaft 31, a rotating column 32, a fixed disk 33, a triangular disk 34, a pull rod 35, a limit seat 36, a moving rod 37, an inner tension column 38 and a manual rotating part. A groove 39 is opened in the base 1, and a strip plate 30 is slidably arranged in the groove 39. Both ends of the strip plate 30 are symmetrically provided with fixed shafts 31. The fixed disk 33 is embedded in the base 1 and connected to the fixed shaft 31. The middle part of the top of the strip plate 30 is rotatably connected to the rotating column 32 through a bearing. A manual rotating part is arranged on the rotating column 32. The top of the rotating column 32 passes through the fixed disk 33 and is connected to the triangular disk 34. The four end points of the top of the triangular disk 34 are symmetrically rotatably connected with the pull rod 35. The limit seat 36 is equidistantly arranged on the top of the fixed disk 33 in a circle, and a moving rod 37 is slidably arranged inside it. One end of the top of the moving rod 37 is rotatably connected to the pull rod 35, and the other end of the top of the moving rod 37 is connected to the inner tension column 38.

[0049] Among them, the rotating column 32 is driven to rotate by a manual driving part, and the rotating column 32 drives the triangular plate 34 to rotate. During the rotation of the triangular plate 34, one end of the pull rod 35 is driven to make a circular motion, and the other end of the pull rod 35 pulls the moving rod 37 to move along the limit seat 36, so that the moving rod 37 drives the three inner tensioning columns 38 to expand outward in the circumferential direction, that is, the hollow circle of the embryo plate is tensioned and fixed from the inside.

[0050] refer to Figure 8 and Fig. 9 The manual rotating part includes a connecting shaft a41, a main bevel gear a42 and a slave bevel gear 43. A U-shaped frame 40 is arranged inside the groove 39. The U-shaped frame 40 is relatively located above the strip plate 30. A connecting shaft a41 is rotatably passed through the vertical end of one side of the U-shaped frame 40. One end of the connecting shaft a41 is connected to the main bevel gear a42. The other end of the connecting shaft a41 passes through the base 1 and is connected to a handle 44. A slave bevel gear 43 is rotatably arranged on the horizontal section of the U-shaped frame 40. The slave bevel gear 43 is meshed and connected with the main bevel gear a42, and the slave bevel gear 43 is limitedly slidably connected with the rotating column 32.

[0051] The connecting shaft a41 is rotated by the handle 44, and the connecting shaft a41 drives the main bevel gear a42 to rotate, and the main bevel gear a42 engages with the slave bevel gear 43. During the engagement process, the slave bevel gear 43 drives the rotating column 32 to rotate, thereby controlling the inner tension column 38 to tighten and fix the hollow circle of the embryo plate.

[0052] refer to Fig.10 The outer wall of the rotating column 32 is symmetrically provided with a strip groove 45 , and a protrusion 46 embedded in the strip groove 45 is integrally formed from the inner side of the bevel gear 43 .

[0053] The strip groove 45 and the protrusion 46 are configured so that the rotating column 32 can be vertically displaced relative to the secondary bevel gear 43 without affecting the limited rotation of the two, that is, the secondary bevel gear 43 and the rotating column 32 maintain a synchronous rotation state.

[0054] refer to Figure 6 and Figure 7 A horizontal plate 47 is connected to one side of the strip plate 30, and the horizontal plate 47 and the strip plate 30 form a planar T-shaped structure. Four groups of guide pillars 48 are symmetrically arranged in a rectangular sliding manner between the strip plate 30 and the horizontal plate 47. The four groups of guide pillars 48 are all arranged on the inner side of the groove 39, and the four groups of guide pillars 48 are all sleeved with abutment springs 49 located below the horizontal plate 47 and the strip plate 30.

[0055] The abutment spring 49 generates a certain elastic supporting force on the transverse plate 47 and the strip plate 30, so that the inner tension column 38 is driven to be located at a certain height. At this height, the inner tension column 38 can play a tensioning and positioning role on the hollow embryo plate.

[0056] refer to Figure 7 and Fig. 9 The follower mechanism includes a connecting shaft b50, a main bevel gear b51, a toothed disc 52, a pressure rod 53 and a row of teeth 54. The connecting shaft b50 is slidably penetrated on the vertical section on the other side of the U-shaped frame 40. One end of the connecting shaft b50 is connected to the main bevel gear b51, and the main bevel gear b51 is meshed with the slave bevel gear 43. The other end of the connecting shaft b50 passes through the base 1 and is connected to the toothed disc 52. Two groups of limiting frames 55 are symmetrically arranged at the bottom of the rear side of the base 1. Two groups of pressure rods 53 for applying a downward pressure force to the cross plate 47 are symmetrically arranged on the rear side of the pressure plate 3. The two groups of pressure rods 53 are slidably arranged with the two groups of limiting frames 55 respectively. The two groups of pressure rods 53 are respectively located on both sides of the toothed disc 52. A row of teeth 54 is arranged on the inner side of one group of pressure rods 53. The row of teeth 54 is meshed with the toothed disc 52 when descending.

[0057] When the pressure rod 53 is lowered, the bottom end of the pressure rod 53 will push the cross plate 47, so that the cross plate 47 drives the strip plate 30 to move downward along the guide column 48, and then the strip plate 30 drives the centering and positioning assembly to move downward as a whole, making way for the spinning assembly. When the spinning assembly and the pressure plate 3 move upward, the centering and positioning assembly will rise under the restoring force of the abutting spring 49, which is convenient for the subsequent processing and limiting of the embryo plate.

[0058] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An internal spinning device, characterized in that: include: A base (1) is provided with pillars (2) at four corners of the top, a pressing plate (3) is slidably arranged between the four pillars (2), a limiting component for initial positioning of the embryo plate is movably arranged at the bottom of the pressing plate (3), a pressing plate (4) is connected to the top between the four pillars (2), a spinning component is arranged on the pressing plate (4), a hydraulic cylinder a (5) is symmetrically installed at the bottom of the pressing plate (4), and the output end of the hydraulic cylinder a (5) is connected to the pressing plate (3); The core mold (6) is placed on the base (1), and a clamping assembly for fixing the core mold is disposed on its outer side, and a centering and alignment assembly for secondary positioning of the embryo plate is disposed on its inner side; and The follower mechanism is arranged on the rear side of the pressing plate (3) and is used to drive the centering and positioning assembly to release the positioning force on the embryo plate and then give way and descend as the pressing plate (3) descends.

2. The internal spinning device according to claim 1, characterized in that: The limiting assembly comprises a limiting column (7), a placement plate (8) and a limiting partition (9); the four corners at the bottom of the pressure plate (3) are connected to the limiting column (7); the limiting column (7) is arranged in a T-shaped structure; the vertical section between the four limiting columns (7) is slidably connected to the placement plate (8); the limiting partition (9) is symmetrically installed on the placement plate (8); a plurality of groups of positioning holes (10) are linearly and equidistantly provided on both sides of the top of the placement plate (8); fastening bolts (11) threadedly connected to the corresponding positioning holes (10) are inserted at both ends of the top of the limiting partition (9); and an inclined material guide section (12) is arranged at the end of the limiting partition (9) facing the feeding.

3. The internal spinning device according to claim 1, characterized in that: The spinning assembly comprises a hydraulic cylinder b (13), a movable plate (14), a motor (15), a rotating shaft (16), a cross beam (17), a fixed sleeve (18) and a spinning head (19). The hydraulic cylinders b (13) are symmetrically installed on both sides of the bottom of the pressing plate (4). The movable plate (14) is installed on the output ends of the two hydraulic cylinders b (13). The motor (15) is installed on the top of the movable plate (14). The output end of the motor (15) is connected to the rotating shaft (16). One end of the rotating shaft (16) passes through the pressing plate (4) and is connected to the cross beam (17). Two groups of fixed sleeves (18) are symmetrically arranged on the cross beam (17). The bottoms of the two fixed sleeves (18) are both provided with a spinning head (19).

4. The internal spinning device according to claim 1, characterized in that: The clamping assembly comprises a fixed ring (20), a toothed ring (21), a toothed plate (22), a gear (23) and a manual drive member. A fixed ring (20) located outside a core mold (6) is arranged on the top of the base (1). The outer side of the fixed ring (20) is circumferentially equidistantly slidably penetrated by a plurality of sets of toothed plates (22). The top of the fixed ring (20) is rotatably connected with a toothed ring (21). One side of the toothed ring (21) is circumferentially equidistantly meshed with a plurality of sets of gears (23). The plurality of sets of gears (23) are all rotatably connected to the top of the base (1). The plurality of sets of gears (23) are respectively meshed with the plurality of sets of toothed plates (22).

5. An internal spinning device as claimed in claim 4, characterized in that: The manual drive member comprises a vertical shaft (24), a worm wheel (25), a horizontal shaft (26) and a worm segment (27). A cavity (28) is provided inside the base (1). The vertical shaft (24) and the horizontal shaft (26) are rotatably arranged in the cavity (28). The vertical shaft (24) and the horizontal shaft (26) are arranged in a cross-staggered manner. The top end of the vertical shaft (24) passes through the base (1) and is connected to the middle shaft of the corresponding gear (23). The middle part of the vertical shaft (24) is connected to the worm wheel (25). One end of the horizontal shaft (26) passes through the base (1) and is connected to a hand wheel (29). The middle part of the horizontal shaft (26) is provided with a worm segment (27). The worm segment (27) is meshed and connected with the worm wheel (25).

6. The internal spinning device according to claim 1, characterized in that: The centering and alignment component comprises a strip plate (30), a fixed shaft (31), a rotating column (32), a fixed disk (33), a triangular disk (34), a pull rod (35), a limit seat (36), a moving rod (37), an inner tension column (38) and a manual rotating part. A groove (39) is provided in the base (1), and a strip plate (30) is slidably arranged in the groove (39). The fixed shafts (31) are symmetrically arranged at both ends of the strip plate (30). The fixed disk (33) is embedded in the base (1) and connected to the fixed shaft (31). The top of the strip plate (30) The middle part is rotatably connected to a rotating column (32) through a bearing, a manual rotating part is arranged on the rotating column (32), the top of the rotating column (32) passes through the fixed plate (33) and is connected to a triangular plate (34), the four end points of the top of the triangular plate (34) are symmetrically rotatably connected to a pull rod (35), a limit seat (36) is equidistantly arranged on the top of the fixed plate (33) in a circle, a moving rod (37) is slidably arranged inside the limit seat (36), one end of the top of the moving rod (37) is rotatably connected to the pull rod (35), and the other end of the top of the moving rod (37) is connected to an inner tension column (38).

7. An internal spinning device as claimed in claim 6, characterized in that: The manual rotating part comprises a connecting shaft a (41), a main bevel gear a (42) and a secondary bevel gear (43); a U-shaped frame (40) is arranged inside the groove (39); the U-shaped frame (40) is relatively located above the strip plate (30); a connecting shaft a (41) is rotatably passed through a vertical end of one side of the U-shaped frame (40); one end of the connecting shaft a (41) is connected to the main bevel gear a (42); the other end of the connecting shaft a (41) passes through the base (1) and is connected to a handle (44); a secondary bevel gear (43) is rotatably arranged on a horizontal section of the U-shaped frame (40); the secondary bevel gear (43) is meshedly connected with the main bevel gear a (42); and the secondary bevel gear (43) is limitedly slidably connected with the rotating column (32).

8. An internal spinning device as claimed in claim 7, characterized in that: The outer wall of the rotating column (32) is symmetrically provided with a strip-shaped groove (45), and a convex block (46) embedded in the strip-shaped groove (45) is integrally formed from the inner side of the cone tooth (43).

9. The internal spinning device according to claim 7, characterized in that: One side of the strip plate (30) is connected to a transverse plate (47), the transverse plate (47) and the strip plate (30) form a planar T-shaped structure, four groups of guide posts (48) are symmetrically arranged between the strip plate (30) and the transverse plate (47) in a rectangular sliding manner, the four groups of guide posts (48) are all arranged on the inner side of the groove (39), and the four groups of guide posts (48) are all sleeved with abutment springs (49) located below the transverse plate (47) and the strip plate (30).

10. The internal spinning device according to claim 7, characterized in that: The follower mechanism comprises a connecting shaft b (50), a main bevel gear b (51), a toothed disc (52), a pressure rod (53) and a row of teeth (54). The connecting shaft b (50) is slidably penetrated through the vertical section on the other side of the U-shaped frame (40). One end of the connecting shaft b (50) is connected to the main bevel gear b (51). The main bevel gear b (51) is meshedly connected with the secondary bevel gear (43). The other end of the connecting shaft b (50) passes through the base (1) and is connected to the toothed disc (52). The rear side of the base (1) is Two groups of limit frames (55) are symmetrically arranged at the bottom, and two groups of pressure rods (53) for applying downward pressure to the cross plate (47) are symmetrically arranged on the rear side of the pressure plate (3). The two groups of pressure rods (53) are respectively slidably arranged with the two groups of limit frames (55). The two groups of pressure rods (53) are respectively located on both sides of the toothed disc (52), and a row of teeth (54) is arranged on the inner side of one group of pressure rods (53). The row of teeth (54) is meshed with the toothed disc (52) when descending.

Images