Multi-station turntable mechanism for automatic edge strip folding machine for scissor foot inner and outer frames

Abstract

The invention relates to the related technical field of machine tools, in particular to a multi-station rotary table mechanism for an automatic edge strip folding machine for scissor foot inner and outer frames, which comprises a rack, a multi-station rotary table mechanism and a transplanting and breaking mechanism, the multi-station rotary table mechanism comprises a rotating shaft, a rotary table, a product bearing disc and a rotary table position sensor; the rotating shaft is rotationally installed on a rack of the automatic edge strip folding machine for the scissor foot inner and outer frames and driven by a stepping motor on the rack, the rotating disc is fixedly installed on the rotating shaft, the product bearing disc is fixedly installed on the rotating disc and used for machining parts to be machined, and the rotating disc position sensor is fixedly installed on the rotating disc. By arranging the multi-station rotary table mechanism composed of the rotating shaft, the rotary table, the product bearing discs and the rotary table position sensors, products on other product bearing discs can be synchronously machined in the feeding and discharging process of a single product bearing disc through the rotary table and the product bearing discs, and therefore the machining efficiency of equipment is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field related to machine tools, and in particular to a multi-station turntable mechanism for an automatic folding machine for inner and outer frames of scissor feet. Background Art

[0002] The scissor foot structure is a keyboard design in which the keycap is connected to the keyboard base through an "X"-shaped bracket. This structure makes the keys more stable and the force is evenly distributed when they are subjected to force. The inner and outer frames of the keyboard scissor foot are plastic products made of POM or glass fiber by injection molding machines. After injection molding, the excess edge materials need to be broken off; The existing Chinese patent document with announcement number CN217668055U discloses a clamping workbench for bright edge processing of a laptop keyboard shell, which includes a support plate, and fixing frames are respectively arranged on both sides of the lower end of the support plate; a bottom mold is arranged on the upper end of the support plate, and a pressing plate is movably arranged above the bottom mold, and the pressing plate is a magnetic metal plate. The laptop keyboard shell to be processed is located between the bottom mold and the pressing plate and is placed on the upper surface of the bottom mold. A guide rod is arranged on the bottom mold, and a first guide hole for the guide rod to pass through is arranged on the laptop keyboard shell to be processed; an electromagnetic guide block is arranged on the bottom mold, and a magnetic cylinder is installed at the bottom of the support plate, and the magnetic cylinder passes through the support plate and is connected to the electromagnetic guide block; However, its loading and unloading method is a front-to-back reciprocating loading method, which will cause the processing module of the machine tool to be in a paused state during the manual loading and unloading process, thereby resulting in low actual working efficiency of the machine tool processing module, and thus causing the overall processing efficiency of the equipment to be low. For this reason, the present invention proposes a multi-station turntable mechanism for an automatic folding strip machine for inner and outer frames of scissors feet to solve the above problems. Summary of the invention

[0003] The object of the present invention is to provide a multi-station turntable mechanism for an automatic folding machine for inner and outer frames of scissor legs, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a multi-station turntable mechanism for an automatic folding machine for inner and outer frames of scissor legs, comprising: A rotating shaft, the rotating shaft is rotatably mounted on a frame of the scissor leg inner and outer frame automatic folding strip machine, and the rotating shaft is driven by a stepping motor on the frame; A turntable, wherein the turntable is fixedly mounted on a rotating shaft; A product tray, which is fixedly mounted on the turntable and is used to process the parts to be processed; The turntable position sensor is fixedly mounted on the turntable and is used to monitor the angle of the turntable.

[0005] Preferably, a bearing ring is integrally formed on the side wall of the rotating shaft, and a bearing tube is integrally formed at the center hole position of the turntable, the bearing tube is sleeved on the rotating shaft, and the bearing tube is mounted on the bearing ring, a center groove is opened at the center position of the rotating shaft, a primary rod insertion hole and an installation groove are opened on the side wall of the center groove, the installation groove is arranged corresponding to the primary rod insertion hole, and a rotating hole is opened on the side wall of the installation groove, and a secondary rod insertion hole is opened on the side wall of the bearing tube, and the primary rod insertion hole is opened on the side wall, and the primary rod insertion hole is arranged to be aligned with the secondary rod insertion hole.

[0006] Preferably, a rotating rod is provided in the installation groove, and a rotating ball is integrally formed on the upper side of the rotating rod, and the rotating ball is rotatably set in the rotating hole, and an insertion rod is integrally formed on the lower side end of the rotating rod, and the insertion rod is an arc-shaped round rod, and the curvature value of the insertion rod matches the curvature value of the primary insertion rod hole and the secondary insertion rod hole, and the insertion rod is movably inserted into the primary insertion rod hole and the secondary insertion rod hole, and a spring groove is opened on the side of the rotating rod, and a support spring is fixedly glued to the bottom of the spring groove, and the outer end of the support spring is against the installation groove.

[0007] Preferably, a load-bearing column is movably installed in the center groove, the lower side end of the load-bearing column is an inverted truncated cone structure, and a screw hole is opened on the load-bearing column, and a bolt hole is opened at the bottom of the center groove, and the screw hole and the bolt hole are arranged correspondingly. A positioning bolt is installed in the screw hole, and the screw of the positioning bolt is screwed into the bolt hole. When the positioning bolt is actually tightened, the load-bearing column moves to the lower end, and at this time, the insertion rod is subjected to force, and the end of the insertion rod passes through the first-level insertion rod hole.

[0008] Preferably, an upper spring connecting ring is integrally formed on the side wall of the force-bearing column, and a lower spring connecting ring is integrally formed on the side wall of the center groove. A return spring is sleeved on the force-bearing column, and the upper and lower ends of the return spring are respectively set to abut against the upper spring connecting ring and the lower spring connecting ring. When the return spring is in a reset state, the support spring is in a reset state, and at this time, the insertion rod is disengaged from the primary insertion rod hole.

[0009] Preferably, the product support plate is composed of a chassis, a support plate body and a positioning seat combination, the support plate body is fixedly mounted on the chassis, the positioning seat is integrally formed with the lower surface of the chassis, and a positioning groove is provided on the positioning seat, the turntable is provided with a positioning seat groove, the positioning seat is plugged into the positioning seat groove, and a push rod seat is fixedly mounted on the lower surface of the turntable through a connecting seat, the push rod seat is a square tube structure, and a push rod is movably mounted in the inner cavity of the push rod seat, a push rod head is integrally formed on the outer end of the push rod, the cross-section of the positioning groove is an isosceles trapezoid, the size of the push rod head matches the size of the positioning groove, and when the positioning bolt is actually tightened, the insertion rod pushes the push rod, and at this time, the push rod head is completely inserted into the positioning groove.

[0010] Preferably, a primary tension spring connecting ring is fixedly welded on the side wall of the push rod seat, and a secondary tension spring connecting ring is fixedly welded on the side wall of the push rod. The primary tension spring connecting ring and the secondary tension spring connecting ring are connected by a tension spring. When the tension spring is in a reset state, the push rod head is completely detached from the positioning groove.

[0011] Preferably, an alignment seat is integrally formed on the upper surface of the bearing ring, and an alignment groove is provided on the lower side of the bearing tube. When the alignment seat is embedded in the alignment groove, the primary rod insertion hole and the secondary rod insertion hole are aligned with each other.

[0012] Preferably, a guide groove is provided on the side wall of the central groove, and a guide protrusion is integrally formed on the outer side wall of the upper spring connecting ring. The guide protrusion is aligned with the guide groove and is movably arranged in the guide groove.

[0013] Preferably, a receiving plate body snap-in groove is provided on the chassis, a countersunk screw groove is provided on the lower surface of the chassis, a screw hole is provided on the receiving plate body, the countersunk screw groove and the screw hole are aligned with each other, and the receiving plate body is fixed to the chassis by a positioning screw, and when the chassis is actually installed and the positioning screw is actually tightened, the nut of the positioning screw is set against the surface of the turntable.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting a multi-station turntable mechanism composed of a rotating shaft, a turntable, a product tray and a turntable position sensor, a single product tray can be used to process products on other product trays simultaneously during loading and unloading, thereby effectively improving the processing efficiency of the equipment; 2. A load-bearing ring is arranged on the side wall of the rotating shaft, a load-bearing tube is arranged at the position of the center hole of the turntable, a first-level plug-in rod hole and a mounting groove are opened on the side wall of the center groove of the rotating shaft, a second-level plug-in rod hole is opened on the side wall of the load-bearing tube, a force-bearing column is arranged in the center groove, and the product receiving plate is arranged to be composed of a chassis, a receiving plate body and a positioning seat, a positioning groove is opened on the positioning seat, and a push rod is movably installed on the push rod seat on the lower surface of the turntable, so that the force-bearing column is forced to move downward by tightening the positioning bolt, so that the plug-in rod is forced to pass through the first-level plug-in rod hole, so as to position the turntable, and the push rod is pushed by the plug rod so that the push rod head at the end of the push rod is embedded in the positioning groove, so as to form a synchronous positioning effect on the product receiving plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2It is a schematic diagram of the lower side of the turntable of the present invention; Figure 3 for Figure 2 A schematic diagram of the structure enlargement in the middle; Figure 4 It is a half-section view of the present invention; Figure 5 for Figure 4 A magnified schematic diagram of the structure at B in the middle; Figure 6 for Figure 4 A magnified schematic diagram of the structure at C in the middle; Figure 7 for Figure 4 A magnified schematic diagram of the structure at D in the middle; Figure 8 A half-section view of the retaining plate of the product of the present invention; Fig. 9 for Figure 8 The enlarged schematic diagram of the structure at E in the middle; Fig.10 This is a schematic diagram of the rotating shaft structure of the present invention; Fig.11 This is a schematic diagram of the distribution of the force-bearing columns and the rotating rods of the present invention; Fig.12 It is a schematic diagram of the structure of the load-bearing column of the present invention; Fig.13 It is a schematic diagram of the structure of the rotating rod of the present invention; Fig.14 This is a schematic diagram of the chassis structure of the present invention; Fig.15 It is a schematic diagram of the structure of the retaining plate body of the present invention.

[0016] In the figure: shaft 1, turntable 2, product carrier plate 3, turntable position sensor 4, bearing ring 5, bearing tube 6, center groove 7, primary plug rod hole 8, mounting groove 9, rotating hole 10, secondary plug rod hole 11, connecting seat 12, push rod seat 13, push rod 14, primary tension spring connecting ring 15, secondary tension spring connecting ring 16, tension spring 17, chassis 18, carrier plate body 19, positioning seat 20, positioning groove 21, rotating rod 22, rotating ball 23, plug rod 24, supporting spring 25, force column 26, upper spring connecting ring 27, lower spring connecting ring 28, reset spring 29, screw hole 30, positioning bolt 31, alignment seat 32, guide groove 33, guide protrusion 34, carrier plate body clamping groove 35, countersunk screw groove 36, positioning screw 37. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-15 The present invention provides the following three preferred embodiments: Embodiment 1: A multi-station turntable mechanism for an automatic folding strip machine for inner and outer frames of scissors feet, comprising a rotating shaft 1, a turntable 2, a product tray 3 and a turntable position sensor 4. The rotating shaft 1 is rotatably mounted on the frame of the automatic folding strip machine for inner and outer frames of scissors feet, and the rotating shaft 1 is driven by a stepper motor on the frame, the turntable 2 is fixedly mounted on the rotating shaft 1, the product tray 3 is fixedly mounted on the turntable 2, and the product tray 3 is used to process the parts to be processed, the turntable position sensor 4 is fixedly mounted on the turntable 2, and the turntable position sensor 4 is used to monitor the angle of the turntable 2, by setting a multi-station turntable mechanism composed of the rotating shaft 1, the turntable 2, the product tray 3 and the turntable position sensor 4, so that the turntable 2 and multiple product trays 3 can be used to achieve that a single product tray 3 can synchronously process products on other product trays 3 during the loading and unloading process, thereby effectively improving the processing efficiency of the equipment.

[0019] Example 2: Please refer to Figure 2-7 and Figure 10-13On the basis of the first embodiment, a bearing ring 5 is integrally formed on the side wall of the rotating shaft 1, and a bearing tube 6 is integrally formed at the center hole position of the rotating disk 2. The bearing tube 6 is sleeved on the rotating shaft 1, and the bearing tube 6 is mounted on the bearing ring 5. A central groove 7 is opened at the center position of the rotating shaft 1, and a primary rod insertion hole 8 and a mounting groove 9 are opened on the side wall of the central groove 7. The mounting groove 9 is arranged corresponding to the primary rod insertion hole 8, and a rotating hole 10 is opened on the side wall of the mounting groove 9. A secondary rod insertion hole 11 is opened on the side wall of the bearing tube 6, and the primary rod insertion hole 8 and the secondary rod insertion hole 8 are arranged in a corresponding manner. The rod holes 11 are aligned, a rotating rod 22 is arranged in the mounting groove 9, a rotating ball 23 is integrally formed on the upper side of the rotating rod 22, and the rotating ball 23 is rotatably arranged in the rotating hole 10, and a rod 24 is integrally formed on the lower side of the rotating rod 22, and the rod 24 is an arc-shaped round rod, and the curvature value of the rod 24 matches the curvature value of the primary rod hole 8 and the secondary rod hole 11, and the rod 24 is movably inserted in the primary rod hole 8 and the secondary rod hole 11, and a spring groove is opened on the side of the rotating rod 22, and the bottom of the spring groove is fixed A support spring 25 is glued, and the outer end of the support spring 25 is against the installation groove 9. A force column 26 is movably installed in the center groove 7. The lower side end of the force column 26 is an inverted truncated cone structure, and a screw hole 30 is opened on the force column 26. A bolt hole is opened at the bottom of the center groove 7. The screw hole 30 and the bolt hole are correspondingly arranged. A positioning bolt 31 is installed in the screw hole 30. The screw of the positioning bolt 31 is screwed into the bolt hole. When the positioning bolt 31 is actually tightened, the force column 26 moves to the lower end, and at this time , the insertion rod 24 is subjected to force, and the end of the insertion rod 24 passes through the primary insertion rod hole 8, an upper spring connecting ring 27 is integrally formed on the side wall of the force-bearing column 26, and a lower spring connecting ring 28 is integrally formed on the side wall of the center groove 7. A return spring 29 is sleeved on the force-bearing column 26, and the upper and lower ends of the return spring 29 are respectively set against the upper spring connecting ring 27 and the lower spring connecting ring 28. When the return spring 29 is in the reset state, the support spring 25 is in the reset state, and at this time, the insertion rod 24 is detached from the primary insertion rod hole 8.

[0020] The product tray 3 is composed of a chassis 18, a tray body 19 and a positioning seat 20. The tray body 19 is fixedly installed on the chassis 18. The positioning seat 20 is integrally formed with the lower surface of the chassis 18, and a positioning groove 21 is provided on the positioning seat 20. A positioning seat groove is provided on the turntable 2, and the positioning seat 20 is plugged into the positioning seat groove. A push rod seat 13 is fixedly installed on the lower surface of the turntable 2 through a connecting seat 12. The push rod seat 13 is a square tube structure, and a push rod 14 is movably installed in the inner cavity of the push rod seat 13. A push rod head is integrally formed at the outer end of the push rod 14. The cross-section of the positioning groove 21 is an isosceles trapezoid. The size of the push rod head matches the size of the positioning groove 21. When the positioning bolt 31 is actually tightened, the insert rod 24 pushes the push rod 14, and at this time, the push rod head is completely inserted into the positioning groove 21.

[0021] A primary tension spring connecting ring 15 is fixedly welded on the side wall of the push rod seat 13, and a secondary tension spring connecting ring 16 is fixedly welded on the side wall of the push rod 14. The primary tension spring connecting ring 15 and the secondary tension spring connecting ring 16 are connected by a tension spring 17. When the tension spring 17 is in the reset state, the push rod head is completely separated from the positioning groove 21. By arranging a bearing ring 5 on the side wall of the rotating shaft 1, and arranging a bearing tube 6 at the position of the center hole of the turntable 2, and opening a primary rod insertion hole 8 and a mounting groove 9 on the side wall of the center groove 7 of the rotating shaft 1, and opening a secondary rod insertion hole 11 on the side wall of the bearing tube 6, and arranging The force-bearing column 26 is configured to be composed of a chassis 18, a plate body 19 and a positioning seat 20, and a positioning groove 21 is opened on the positioning seat 20, and a push rod 14 is movably installed on the push rod seat 13 on the lower surface of the turntable 2, so that the force-bearing column 26 is forced to move downward by tightening the positioning bolt 31, so that the insertion rod 24 is forced to pass through the end of the insertion rod 24 through the primary insertion rod hole 8, thereby positioning the turntable 2, and the push rod 14 is pushed by the insertion rod 24, so that the push rod head at the end of the push rod 14 is embedded in the positioning groove 21, so as to form a synchronous positioning effect on the product holding plate 3.

[0022] Example 3: Please refer to Figure 8-10 and Figure 14-15 On the basis of the second embodiment, an alignment seat 32 is integrally formed on the upper surface of the carrying ring 5, and an alignment groove is opened on the lower side of the carrying tube 6. When the alignment seat 32 is embedded in the alignment groove, the primary rod insertion hole 8 and the secondary rod insertion hole 11 are relatively aligned. Through the setting of the alignment seat 32 and the alignment groove, it is convenient for the staff to align the primary rod insertion hole 8 and the secondary rod insertion hole 11.

[0023] A guide groove 33 is formed on the side wall of the central groove 7 , and a guide protrusion 34 is integrally formed on the outer side wall of the upper spring connecting ring 27 . The guide protrusion 34 is aligned with the guide groove 33 , and the guide protrusion 34 is movably disposed in the guide groove 33 .

[0024] A receiving plate body engaging groove 35 is provided on the chassis 18, a countersunk screw groove 36 is provided on the lower surface of the chassis 18, a screw hole 35 is provided on the receiving plate body 19, the countersunk screw groove 36 is aligned with the screw hole 35, and the receiving plate body 19 is fixed to the chassis 18 by a positioning screw 37. When the chassis 18 is actually installed and the positioning screw 37 is actually tightened, the nut of the positioning screw 37 is set against the surface of the turntable 2, and the turntable 2 forms a supporting effect on the nut of the positioning screw 37 to prevent the positioning screw 37 from loosening, so that when the staff inspects the equipment, they only need to check the positioning bolt 31, thereby improving the daily inspection efficiency of the equipment.

[0025] Although the above describes the illustrative specific implementation methods of the present application so that technicians in this technical field can understand the present application, the present application is not limited to the scope of the specific implementation methods. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations using the concept of the present application are protected.

Claims

1. A multi-station turntable mechanism for an automatic folding machine for inner and outer frames of scissor feet, comprising: A rotating shaft (1), the rotating shaft (1) being rotatably mounted on a frame of a scissor-leg inner and outer frame automatic folding strip machine, and the rotating shaft (1) being driven by a stepping motor on the frame; A rotating disk (2), wherein the rotating disk (2) is fixedly mounted on the rotating shaft (1); A product receiving tray (3), wherein the product receiving tray (3) is fixedly mounted on the turntable (2), and the product receiving tray (3) is used to process the parts to be processed; A turntable position sensor (4), wherein the turntable position sensor (4) is fixedly mounted on the turntable (2), and the turntable position sensor (4) is used to monitor the angle of the turntable (2).

2. According to claim 1, a multi-station turntable mechanism for an automatic folding machine for inner and outer frames of scissor legs, characterized in that: A bearing ring (5) is integrally formed on the side wall of the rotating shaft (1), and a bearing tube (6) is integrally formed at the center hole position of the rotating disk (2); the bearing tube (6) is sleeved on the rotating shaft (1), and the bearing tube (6) is mounted on the bearing ring (5); a center groove (7) is provided at the center position of the rotating shaft (1); a primary rod insertion hole (8) and a mounting groove (9) are provided on the side wall of the central groove (7); the mounting groove (9) is arranged corresponding to the primary rod insertion hole (8), and a rotating hole (10) is provided on the side wall of the mounting groove (9); a secondary rod insertion hole (11) is provided on the side wall of the bearing tube (6); the primary rod insertion hole (8) is arranged in alignment with the secondary rod insertion hole (11).

3. According to claim 2, a multi-station turntable mechanism for an automatic folding machine for inner and outer frames of scissor legs is characterized by: A rotating rod (22) is arranged in the installation groove (9), and a rotating ball (23) is integrally formed on the upper side of the rotating rod (22), and the rotating ball (23) is rotatably arranged in the rotating hole (10). An insertion rod (24) is integrally formed on the lower side of the rotating rod (22), and the insertion rod (24) is an arc-shaped round rod, and the curvature value of the insertion rod (24) matches the curvature value of the primary insertion rod hole (8) and the secondary insertion rod hole (11), and the insertion rod (24) is movably inserted into the primary insertion rod hole (8) and the secondary insertion rod hole (11). A spring groove is opened on the side of the rotating rod (22), and a support spring (25) is fixedly glued to the bottom of the spring groove, and the outer end of the support spring (25) abuts against the installation groove (9).

4. According to claim 3, a multi-station turntable mechanism for an automatic folding machine for inner and outer frames of scissor legs is characterized by: A load-bearing column (26) is movably installed in the central groove (7), the lower side end of the load-bearing column (26) is an inverted truncated cone structure, and a screw hole (30) is opened on the load-bearing column (26), and a bolt hole is opened at the bottom of the central groove (7). The screw hole (30) and the bolt hole are arranged correspondingly, and a positioning bolt (31) is installed in the screw hole (30). The screw of the positioning bolt (31) is screwed into the bolt hole, and when the positioning bolt (31) is actually tightened, the load-bearing column (26) moves to the lower end, and at this time, the insertion rod (24) is subjected to force, and the end of the insertion rod (24) passes through the primary insertion rod hole (8).

5. The multi-station turntable mechanism for the automatic folding machine of the inner and outer frames of the scissor legs according to claim 4 is characterized by: An upper spring connecting ring (27) is integrally formed on the side wall of the force-bearing column (26), and a lower spring connecting ring (28) is integrally formed on the side wall of the central groove (7). A return spring (29) is sleeved on the force-bearing column (26), and the upper and lower ends of the return spring (29) are respectively arranged to abut against the upper spring connecting ring (27) and the lower spring connecting ring (28). When the return spring (29) is in a return state, the support spring (25) is in a return state, and at this time, the insertion rod (24) is disengaged from the primary insertion rod hole (8).

6. The multi-station turntable mechanism for the automatic folding machine for inner and outer frames of scissor legs according to claim 5, characterized in that: The product tray (3) is composed of a base plate (18), a tray body (19) and a positioning seat (20), wherein the tray body (19) is fixedly mounted on the base plate (18), the positioning seat (20) is integrally formed with the lower surface of the base plate (18), and a positioning groove (21) is provided on the positioning seat (20), the rotating disk (2) is provided with a positioning seat groove, the positioning seat (20) is plugged into the positioning seat groove, and the lower surface of the rotating disk (2) is fixedly mounted via the connecting seat (12). A push rod seat (13) is provided, the push rod seat (13) being a square tube structure, and a push rod (14) is movably installed in the inner cavity of the push rod seat (13), a push rod head is integrally formed at the outer end of the push rod (14), the cross section of the positioning groove (21) is an isosceles trapezoid, the size of the push rod head matches the size of the positioning groove (21), and when the positioning bolt (31) is actually tightened, the insertion rod (24) pushes the push rod (14), and at this time, the push rod head is completely inserted into the positioning groove (21).

7. The multi-station turntable mechanism for the automatic folding machine for inner and outer frames of scissor legs according to claim 6, characterized in that: A primary tension spring connecting ring (15) is fixedly welded on the side wall of the push rod seat (13), and a secondary tension spring connecting ring (16) is fixedly welded on the side wall of the push rod (14). The primary tension spring connecting ring (15) and the secondary tension spring connecting ring (16) are connected via a tension spring (17). When the tension spring (17) is in a reset state, the push rod head is completely detached from the positioning groove (21).

8. The multi-station turntable mechanism for the automatic folding machine of the inner and outer frames of the scissor legs according to claim 7 is characterized by: The upper surface of the bearing ring (5) is integrally formed with an alignment seat (32), and the lower side of the bearing tube (6) is provided with an alignment groove. When the alignment seat (32) is embedded in the alignment groove, the primary rod insertion hole (8) and the secondary rod insertion hole (11) are arranged to be aligned with each other.

9. The multi-station turntable mechanism for the automatic folding machine of the inner and outer frames of the scissor legs according to claim 8, characterized in that: A guide groove (33) is formed on the side wall of the central groove (7), and a guide protrusion (34) is integrally formed on the outer side wall of the upper spring connecting ring (27). The guide protrusion (34) is aligned with the guide groove (33), and the guide protrusion (34) is movably arranged in the guide groove (33).

10. A multi-station turntable mechanism for an automatic folding machine for inner and outer frames of scissor legs according to claim 9, characterized in that: The chassis (18) is provided with a receiving plate body clamping groove (35), the lower surface of the chassis (18) is provided with a countersunk screw groove (36), the receiving plate body (19) is provided with a screw hole (35), the countersunk screw groove (36) is aligned with the screw hole (35), and the receiving plate body (19) is fixed to the chassis (18) by a positioning screw (37), and when the chassis (18) is actually installed and the positioning screw (37) is actually tightened, the nut of the positioning screw (37) is set against the surface of the turntable (2).

Images