Five-axis linkage numerical control polishing machine tool for aluminum profile production and machining

Abstract

The invention belongs to the technical field of profile polishing, and particularly discloses an aluminum profile production and machining five-axis linkage numerical control polishing machine tool which comprises an outer frame, a first rotating shaft and a plurality of second rotating shafts, the first rotating shaft and the second rotating shafts are located in the outer frame, a power device for controlling the first rotating shaft is arranged in the outer frame, and a plurality of polishing rollers are arranged on the surface of the first rotating shaft. A mounting table is fixed to the tops of the second rotating shafts, the multiple polishing rollers correspond to the multiple second rotating shafts one to one, the top of the mounting table clamps a profile through a limiting part, and the power device enables the polishing rollers to polish the profile. Through cooperation of the rotating gear and the teeth, the rotating frame utilizes the vertical rod and the push rod to enable the frame to drive the profile to rotate, the elastic force of the elastic piece enables the annular surface of the frame to be attached to the top face of the mounting table all the time, and the profile is turned over in a rotating mode; and the first rotating shaft can conveniently drive the polishing roller to polish the top surface and the bottom surface of the profile.

Description

Technical Field

[0001] The present invention belongs to the technical field of profile polishing, and particularly relates to a five-axis linkage numerical control polishing machine tool for the production and processing of aluminum profiles. Background Art

[0002] In the field of profile processing, a five-axis linkage numerical control machine tool is a high-precision machine tool, generally used for processing some workpieces with relatively complex shapes.

[0003] In the production and processing of aluminum profiles, it is necessary to polish the surfaces of some aluminum profiles. The traditional method is that after the front side of the profile is polished, the profile needs to be manually flipped, and then the five-axis linkage numerical control machine tool polishes the reverse side. However, workers are prone to get injured during the flipping process.

[0004] Therefore, it is necessary to invent a five-axis linkage numerical control polishing machine tool for the production and processing of aluminum profiles to solve the above problems. Summary of the Invention

[0005] In view of the above problems, the present invention provides a five-axis linkage numerical control polishing machine tool for the production and processing of aluminum profiles to solve the problems raised in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solution: A five-axis linkage numerical control polishing machine tool for the production and processing of aluminum profiles, including an outer frame, a first rotating shaft and a plurality of second rotating shafts inside the outer frame. A power device for controlling the first rotating shaft is arranged inside the outer frame. A plurality of polishing rollers are arranged on the surface of the first rotating shaft. An installation table is fixed on the top of the second rotating shaft. The plurality of polishing rollers correspond to the plurality of second rotating shafts one by one. The profile is clamped on the top of the installation table by a limiting component. The power device enables the polishing rollers to polish the profile.

[0007] The limiting component includes a frame, a push rod, a vertical rod and a rotating frame.

[0008] Two frames are relatively located at both ends of the profile. The end of the profile is fitted and inserted into the inner side of the frame. The push rod is fixedly installed at the center of the outer side of the frame. And the vertical rod is fixedly installed at the outer end of the push rod. A sliding groove corresponding to the vertical rod is arranged on the circumferential outer side of the rotating frame. A spring piece is arranged inside the sliding groove. The vertical rod is connected to the inner side of the sliding groove by the spring piece. A limiting sleeve is sleeved on the surface of the push rod. A rotating component for adjusting the frame is arranged on the limiting sleeve.

[0009] Further, a ring edge is arranged on the outer side of the limiting sleeve, and a ring groove is arranged on the circumferential outer side of the ring edge. The inner side of the rotating frame is rotationally sleeved on the outside of the ring groove by an inner ring strip.

[0010] Further, the spring piece is in a stretched state, and the elastic force of the spring piece enables the push rod to drive the frame to buckle at the end of the profile through the vertical rod.

[0011] Further, the limiting component further includes a pressure rod, a sleeve, a side ring and a spring;

[0012] Sleeves are fixedly arranged on both sides of the outer side surface of the frame. The pressure rod is inserted into the interior of the sleeve, and the inner end of the pressure rod extends into the inner part of the frame. The side surface of the side ring is connected to the pressure rod by a connecting rod, and the inner side surface of the side ring is connected to the outer side surface of the frame by a spring. The elastic force of the spring makes the inner end of the pressure rod fit against the end surface of the profile.

[0013] Further, a screw rod is spirally penetrated through the center of the side ring, and the spring is sleeved on the surface of the screw rod. The elastic force of the spring makes the inner end of the screw rod fit against the outer side surface of the frame.

[0014] Further, the rotating component includes a gear and a motor;

[0015] The motor is installed on the top of the limiting sleeve at the left side part, and the gear is in transmission connection with the output end of the motor. A plurality of tooth teeth arranged in a ring are provided on the circumferential outer side surface of the rotating frame, and the rotating frame is meshed with the gear by means of the plurality of tooth teeth.

[0016] Further, the rotating component further includes a moving rod and an elastic member;

[0017] Convex blocks are fixedly arranged at the centers of both side surfaces of the installation table. The moving rod vertically penetrates through the convex blocks. The top end of the moving rod is connected to the bottom of the limiting sleeve, and a circular plate is fixedly arranged at the bottom end of the moving rod. The elastic member is sleeved on the surface of the moving rod. The top end of the elastic member is connected to the bottom surface of the convex block, and the bottom end of the elastic member is connected to the top surface of the circular plate.

[0018] Further, the elastic member is in a compressed state. The elastic force of the elastic member makes the limiting sleeve at the top end of the moving rod placed on the top surface of the convex block, and the two frames are horizontally placed on the top of the installation table.

[0019] The technical effects and advantages of the present invention:

[0020] 1. In the present invention, the cooperation of the rotating gear and the tooth teeth enables the rotating frame to drive the profile to rotate through the vertical rod and the push rod. The elastic force of the elastic member makes the annular surface of the frame always fit against the top surface of the installation table. The profile is turned over by rotation, which is convenient for the first rotating shaft to drive the polishing roller to polish the top surface and the bottom surface of the profile.

[0021] 2. In the present invention, the elastic force of the elastic sheet makes the vertical rod and the push rod drive the frame to approach the profile until the inner part of the frame is buckled at the end of the profile, and profiles with different lengths can be limited between the two frames.

[0022] 3. In the present invention, the elastic force of the spring is applied to the profile through the pressure rod, and the elastic force of the spring is utilized to improve the clamping effect on the profile. When the screw rod is spirally inserted into the center of the side ring until the inner end of the screw rod fits against the outer side surface of the frame, the stability of the profile between the two frames is improved, and the end of the profile is prevented from moving inside the inner part of the frame. Brief Description of the Drawings

[0023] Figure 1 is an overall view of a five-axis linkage numerically controlled polishing machine for aluminum profile production and processing according to an embodiment of the present invention;

[0024] Figure 2 is a schematic diagram of clamping a profile on the top of an installation table using a limiting component according to an embodiment of the present invention;

[0025] Figure 3 is an overall schematic diagram of the limiting component according to an embodiment of the present invention;

[0026] Figure 4 is a schematic diagram of a rotating frame sleeved on the surface of an annular groove using an inner annular bar according to an embodiment of the present invention;

[0027] Figure 5 is a three-dimensional sectional schematic diagram of a frame according to an embodiment of the present invention;

[0028] In the figure: 1. Outer frame; 2. First rotating shaft; 3. Second rotating shaft; 4. Polishing roller; 5. Installation table; 6. Profile; 7. Frame; 8. Push rod; 9. Vertical rod; 10. Rotating frame; 11. Elastic sheet; 12. Limiting sleeve; 13. Annular groove; 14. Pressing rod; 15. Sleeve; 16. Side ring; 17. Spring; 18. Screw; 19. Gear; 20. Motor; 21. Teeth; 22. Moving rod; 23. Elastic member. Detailed Embodiment

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0030] The present invention provides a five-axis linkage numerically controlled polishing machine for aluminum profile production and processing, as Figures 1 to 4As shown in the figure, it includes an outer frame 1, a first rotating shaft 2 and a plurality of second rotating shafts 3 inside the outer frame 1. A power device for controlling the first rotating shaft 2 is arranged inside the outer frame 1. A plurality of polishing rollers 4 are arranged on the surface of the first rotating shaft 2. An installation table 5 is fixed at the top of the second rotating shaft 3. The plurality of polishing rollers 4 correspond to the plurality of second rotating shafts 3 one by one. The profile 6 is clamped by a limiting component on the top of the installation table 5. The power device enables the polishing rollers 4 to polish the profile 6. Taking the left-right direction of the top surface of the installation table 5 as the X-axis, the front-back direction of the top surface of the installation table 5 as the Y-axis, and the vertical direction perpendicular to the installation table 5 as the Z-axis. Among them, the power device is set as a common component in the prior art. The power device enables the first rotating shaft 2 to move inside the outer frame 1. At this time, the first rotating shaft 2 drives the plurality of polishing rollers 4 to move synchronously. And the power device enables the first rotating shaft 2 and the plurality of second rotating shafts 3 to rotate inside the outer frame 1, so as to complete five-axis linkage. The rotating second rotating shaft 3 uses the installation table 5 to rotate the profile 6. The power device enables the first rotating shaft 2 to drive the polishing rollers 4 to approach the profile 6. At this time, the rotating polishing rollers 4 polish the profile 6.

[0031] The limiting component includes a frame 7, a push rod 8, a vertical rod 9, and a rotating frame 10; two frames 7 are relatively located at both ends of the profile 6. The end of the profile 6 is cooperatively inserted into the inner side of the frame 7. The push rod 8 is fixedly installed at the center of the outer side of the frame 7. And the vertical rod 9 is fixedly installed at the outer end of the push rod 8. A sliding groove corresponding to the vertical rod 9 is arranged on the circumferential outer side surface of the rotating frame 10. A spring piece 11 is arranged inside the sliding groove. The vertical rod 9 is connected to the inner side of the sliding groove by the spring piece 11. A limiting sleeve 12 is sleeved on the surface of the push rod 8. A rotating component for adjusting the frame 7 is arranged on the limiting sleeve 12. The spring piece 11 is in a stretched state. The elastic force of the spring piece 11 enables the push rod 8 to drive the frame 7 to buckle at the end of the profile 6 through the vertical rod 9. Pull the frame 7 to move. At this time, the two frames 7 move away from each other. The moving frame 7 drives the vertical rod 9 to move synchronously through the push rod 8. The vertical rod 9 pulls the spring piece 11 during the process of sliding inside the sliding groove. Until the distance between the two frames 7 is greater than the length of the profile 6, place the profile 6 to be polished on the top of the installation table 5. Release the pulling force applied to the frame 7. The elastic force of the spring piece 11 enables the vertical rod 9 and the push rod 8 to drive the frame 7 to approach the profile 6 until the inner side of the frame 7 buckles at the end of the profile 6. Profiles 6 of different lengths can be limited between the two frames 7. At this time, the two frames 7 complete the limitation of the profile 6, which is convenient for the polishing rollers 4 to polish the profile 6.

[0032] In Figure 2 , Figure 3 and Figure 5In the figure, the limiting components also include a pressure rod 14, a sleeve 15, a side ring 16 and a spring 17; sleeves 15 are fixed on both sides of the outer side of the frame 7, the pressure rod 14 is inserted into the sleeve 15, and the inner end of the pressure rod 14 extends into the inner side of the frame 7, the side of the side ring 16 is connected to the pressure rod 14 by a connecting rod, the surface of the sleeve 15 is provided with a side groove corresponding to the connecting rod, the inner side of the side ring 16 is connected to the outer side of the frame 7 by a spring 17, and the elastic force of the spring 17 makes the inner end of the pressure rod 14 fit with the end face of the profile 6. The elastic force of the spring sheet 11 makes the two frames 7 cooperate to clamp the profile 6. Due to the elastic force of the spring 17, the side ring 16 drives the inner end of the pressure rod 14 to enter the inner part of the frame 7. When the frame 7 drives the pressure rod 14 to contact the profile 6, the reaction force of the profile 6 on the pressure rod 14 causes the pressure rod 14 to move inside the sleeve 15, and the connecting rod slides inside the side groove. The pressure rod 14 uses the connecting rod to drive the side ring 16 away from the frame 7. The side ring 16 away from the frame 7 pulls the spring 17. At this time, the elastic force of the spring 17 is applied to the profile 6 through the pressure rod 14, and the elastic force of the spring 17 is used to improve the clamping effect on the profile 6.

[0033] The center of the side ring 16 is spirally penetrated by a screw rod 18, and a spring 17 is sleeved on the surface of the screw rod 18. The elastic force of the spring 17 makes the inner end of the screw rod 18 fit with the outer side of the frame 7. After the elastic force of the spring 17 is applied to the profile 6 through the pressure rod 14, the screw rod 18 is spirally penetrated through the center of the side ring 16. The spiral effect of the rotating screw rod 18 and the side ring 16 makes the screw rod 18 move at the center of the side ring 16 until the inner end of the screw rod 18 fits with the outer side of the frame 7, thereby improving the stability of the profile 6 between the two frames 7 and preventing the end of the profile 6 from moving inside the frame 7.

[0034] exist Figures 2 to 4 In the embodiment, the rotating parts include a gear 19 and a motor 20; the motor 20 is installed on the top of the limiting sleeve 12 on the left side, and the gear 19 is connected to the output end of the motor 20 in a transmission manner. A plurality of teeth 21 arranged in an annular manner are provided on the outer side of the circumference of the rotating frame 10, and the rotating frame 10 meshes with the gear 19 by using the plurality of teeth 21. The outer side of the limiting sleeve 12 is provided with a ring edge, and the outer side of the circumference of the ring edge is provided with a ring groove 13, and the inner side of the rotating frame 10 is rotatably sleeved on the outer side of the ring groove 13 by using an inner ring strip. After the polishing roller 4 polishes the top surface of the profile 6, the power device causes the first rotating shaft 2 to drive the polishing roller 4 away from the profile 6, starts the motor 20, and the output end of the motor 20 causes the gear 19 to rotate. Since the rotating frame 10 is sleeved on the surface of the annular groove 13 using the inner ring strip, the rotating gear 19 cooperates with the teeth 21 to cause the rotating frame 10 to rotate on the outside of the annular groove 13 of the ring edge using the inner ring strip. The rotating rotating frame 10 drives the push rod 8 to rotate at the center of the limiting sleeve 12 using the vertical rod 9. The rotating push rod 8 uses the frame 7 and the limiting component to rotate the profile 6. The profile 6 is turned over by rotation, which facilitates the power device to cause the first rotating shaft 2 to drive the polishing roller 4 to polish the bottom surface of the profile 6.

[0035] The rotating member further includes a moving rod 22 and an elastic member 23; bumps are fixed at the centers of both side surfaces of the mounting table 5. The moving rod 22 vertically penetrates through the bumps. The top end of the moving rod 22 is connected to the bottom of the limiting sleeve 12. A circular plate is fixed at the bottom end of the moving rod 22. The elastic member 23 is sleeved on the surface of the moving rod 22. The top end of the elastic member 23 is connected to the bottom surface of the bump, and the bottom end of the elastic member 23 is connected to the top surface of the circular plate. The elastic member 23 is in a compressed state. The elastic force of the elastic member 23 causes the limiting sleeve 12 at the top end of the moving rod 22 to be placed on the top surface of the bump, and the two frame bodies 7 are horizontally placed on the top of the mounting table 5. When the frame body 7 rotates, the pressure of the end face of the frame body 7 on the top surface of the mounting table 5 causes the push rod 8 to move upward. Since the two moving rods 22 are vertically arranged, the upward-moving push rod 8 drives the moving rod 22 to move vertically upward by using the limiting sleeve 12. The upward-moving moving rod 22 cooperates with the circular plate to squeeze the elastic member 23 on the surface of the moving rod 22. The elastic force of the elastic member 23 is used to prevent the frame body 7 and the profile 6 from rotating too fast. The elastic force of the elastic member 23 causes the annular surface of the frame body 7 to always fit with the top surface of the mounting table 5 until the rotating frame body 7 is vertically arranged, and then the continuously rotating frame body 7 gradually tilts. At this time, the elastic force of the elastic member 23 causes the moving rod 22 to drive the limiting sleeve 12 to move downward until the frame body 7 is horizontally placed, and the turning-over process of the profile 6 is completed.

[0036] The working principle of the present invention:

[0037] Refer to Figures 1 to 5 As shown, pull the frame body 7 to move. At this time, the two frame bodies 7 move away from each other. The moving frame body 7 drives the vertical rod 9 to move synchronously by using the push rod 8. When the vertical rod 9 slides inside the chute, the elastic piece 11 is pulled. Until the distance between the two frame bodies 7 is greater than the length of the profile 6, place the profile 6 to be polished on the top of the mounting table 5, and release the pulling force applied to the frame body 7. The elastic force of the elastic piece 11 causes the vertical rod 9 and the push rod 8 to drive the frame body 7 to approach the profile 6 until the inner part of the frame body 7 is buckled at the end of the profile 6. Profiles 6 of different lengths can be limited between the two frame bodies 7. At this time, the two frame bodies 7 complete the limitation of the profile 6.

[0038] When the frame 7 drives the pressing rod 14 to contact the profile 6, the reaction force of the profile 6 on the pressing rod 14 causes the pressing rod 14 to move inside the sleeve 15. The connecting rod slides inside the side groove, and the pressing rod 14 drives the side ring 16 away from the frame 7 by means of the connecting rod. The side ring 16 away from the frame 7 pulls the spring 17. At this time, the elastic force of the spring 17 is applied to the profile 6 through the pressing rod 14, and the clamping effect on the profile 6 is improved by using the elastic force of the spring 17. After the elastic force of the spring 17 is applied to the profile 6 through the pressing rod 14, the screw rod 18 is spirally penetrated through the center of the side ring 16. The spiral effect of the rotating screw rod 18 and the side ring 16 causes the screw rod 18 to move at the center of the side ring 16 until the inner end of the screw rod 18 fits against the outer surface of the frame 7, improving the stability of the profile 6 between the two frames 7 and preventing the end of the profile 6 from moving inside the inner part of the frame 7.

[0039] The power device causes the first rotating shaft 2 to move inside the outer frame 1. At this time, the first rotating shaft 2 drives a plurality of polishing rollers 4 to move synchronously, and the power device causes the first rotating shaft 2 and a plurality of second rotating shafts 3 to rotate inside the outer frame 1, thus completing five-axis linkage. The rotating second rotating shaft 3 causes the profile 6 to rotate by means of the mounting table 5. The power device causes the first rotating shaft 2 to drive the polishing roller 4 close to the profile 6. At this time, the rotating polishing roller 4 polishes the profile 6.

[0040] After the polishing roller 4 polishes the top surface of the profile 6, the power device causes the first rotating shaft 2 to drive the polishing roller 4 away from the profile 6. The motor 20 is started. The output end of the motor 20 causes the gear 19 to rotate. Since the rotating frame 10 is sleeved on the surface of the ring groove 13 by means of the inner ring strip, the rotation of the gear 19 in cooperation with the teeth 21 causes the rotating frame 10 to rotate outside the ring groove 13 on the ring edge by means of the inner ring strip. The rotating frame 10 drives the push rod 8 to rotate at the center of the limiting sleeve 12 by means of the vertical rod 9. The rotating push rod 8 causes the profile 6 to rotate by means of the frame 7 and the limiting component.

[0041] When the frame 7 rotates, the pressure of the end face of the frame 7 on the top surface of the mounting table 5 causes the push rod 8 to move upward. Since the two moving rods 22 are arranged vertically, the upward moving push rod 8 drives the moving rod 22 to move vertically upward by means of the limiting sleeve 12. The upward moving moving rod 22 cooperates with the circular plate to squeeze the elastic member 23 on the surface of the moving rod 22. The elastic force of the elastic member 23 is used to prevent the frame 7 and the profile 6 from rotating too fast. The elastic force of the elastic member 23 causes the annular surface of the frame 7 to always fit against the top surface of the mounting table 5 until the rotating frame 7 is vertically arranged. Then, the continuously rotating frame 7 gradually tilts. At this time, the elastic force of the elastic member 23 causes the moving rod 22 to drive the limiting sleeve 12 to move downward until the frame 7 is horizontally placed, completing the turning process of the profile 6.

[0042] The profile 6 is turned over by rotation, which facilitates the power device to cause the first rotating shaft 2 to drive the polishing roller 4 to polish the bottom surface of the profile 6.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it.

Claims

1. A five-axis linkage numerically controlled polishing machine tool for aluminum profile production and processing, comprising an outer frame (1), a first rotating shaft (2) and a plurality of second rotating shafts (3) inside the outer frame (1), and a power device for controlling the first rotating shaft (2) is arranged inside the outer frame (1), characterized in that: A plurality of polishing rollers (4) are arranged on the surface of the first rotating shaft (2). An installation table (5) is fixed at the top of the second rotating shaft (3). The plurality of polishing rollers (4) correspond to the plurality of second rotating shafts (3) one by one. The profile (6) is clamped by a limiting component at the top of the installation table (5). A power device enables the polishing rollers (4) to polish the profile (6). The limiting component includes a frame (7), a push rod (8), a vertical rod (9), and a rotating frame (10). Two frames (7) are opposite to each other at both ends of the profile (6). The end of the profile (6) is fitted and inserted into the inner side of the frame (7). The push rod (8) is fixedly installed at the center of the outer side of the frame (7). And the vertical rod (9) is fixedly installed at the outer end of the push rod (8). A chute corresponding to the vertical rod (9) is arranged on the circumferential outer side of the rotating frame (10). A spring piece (11) is arranged inside the chute. The vertical rod (9) is connected to the inner side of the chute by the spring piece (11). A limiting sleeve (12) is sleeved on the surface of the push rod (8). A rotating component for adjusting the frame (7) is arranged on the limiting sleeve (12).

2. The five-axis linkage numerically controlled polishing machine tool for aluminum profile production and processing according to claim 1, characterized in that: A ring edge is arranged on the outer side of the limiting sleeve (12). And a ring groove (13) is arranged on the circumferential outer side of the ring edge. The inner side of the rotating frame (10) is rotationally sleeved on the outer side of the ring groove (13) by an inner ring strip.

3. The five-axis linkage numerically controlled polishing machine tool for aluminum profile production and processing according to claim 1, characterized in that: The spring piece (11) is in a stretched state. The elastic force of the spring piece (11) enables the push rod (8) to drive the frame (7) to be buckled at the end of the profile (6) through the vertical rod (9).

4. The five-axis linkage numerically controlled polishing machine tool for aluminum profile production and processing according to claim 1, characterized in that: The limiting component further includes a pressure rod (14), a sleeve (15), a side ring (16), and a spring (17). Sleeves (15) are fixedly installed on both sides of the outer side of the frame (7). The pressure rod (14) is inserted into the sleeve (15). And the inner end of the pressure rod (14) extends into the inner side of the frame (7). The side ring (16) is connected to the pressure rod (14) by a connecting rod on the side. The inner side of the side ring (16) is connected to the outer side of the frame (7) by a spring (17). The elastic force of the spring (17) enables the inner end of the pressure rod (14) to be in contact with the end face of the profile (6).

5. The five-axis linkage numerically controlled polishing machine tool for aluminum profile production and processing according to claim 4, characterized in that: A screw rod (18) is spirally penetrated through the center of the side ring (16). The spring (17) is sleeved on the surface of the screw rod (18). The elastic force of the spring (17) enables the inner end of the screw rod (18) to be in contact with the outer side of the frame (7).

6. The five-axis linkage numerically controlled polishing machine tool for aluminum profile production and processing according to claim 2, characterized in that: The rotating component includes a gear (19) and a motor (20). The motor (20) is installed on the top of the defining sleeve (12) on the left side, and the gear (19) is in transmission connection with the output end of the motor (20). A plurality of annularly arranged teeth (21) are provided on the circumferential outer side surface of the rotating frame (10), and the rotating frame (10) is engaged with the gear (19) by means of the plurality of teeth (21).

7. The five-axis linkage numerical control polishing machine for aluminum profile production and processing according to claim 6, wherein: The rotating member further includes a moving rod (22) and an elastic member (23); Lugs are fixed at the centers of both side surfaces of the mounting table (5). The moving rod (22) vertically penetrates through the lugs. The top end of the moving rod (22) is connected to the bottom of the defining sleeve (12). A circular plate is fixed at the bottom end of the moving rod (22). The elastic member (23) is sleeved on the surface of the moving rod (22). The top end of the elastic member (23) is connected to the bottom surface of the lug, and the bottom end of the elastic member (23) is connected to the top surface of the circular plate.

8. The five-axis linkage numerical control polishing machine for aluminum profile production and processing according to claim 7, wherein: The elastic member (23) is in a compressed state, and the elastic force of the elastic member (23) causes the defining sleeve (12) at the top end of the moving rod (22) to be placed on the top surface of the lug, and the two frame frames (7) are horizontally placed on the top of the mounting table (5).

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