Escalator comb tooth pedal assembling device

Abstract

The escalator comb tooth pedal assembling device is applied to the field of assembling machinery and comprises a positioning mechanism and a feeding mechanism, the positioning mechanism is arranged below a conveying mechanism, the conveying mechanism is used for conveying pedals, and the feeding mechanism is fixed to the upper portion of the conveying mechanism through an XZ-axis linear module. Through cooperation of the positioning mechanism and the feeding mechanism, automatic assembling operation of the comb plate and the pedal is achieved, automatic assembling positioning and automatic assembling locking actions can be achieved, the assembling efficiency is high, the market prospect is achieved, and the automatic assembling device is suitable for application and popularization.

Description

Technical Field

[0001] The present application relates to the field of assembly machinery, and in particular to an escalator comb pedal assembly device. Background Art

[0002] The comb plate is located at the entrances and exits at both ends, and is a component that meshes with the steps, pedals or moving walkway tape to facilitate the transition of passengers. The ends of the comb plate are mostly processed into rounded comb teeth, and the shape should ensure that the risk of foot pinching between the steps, pedals or tapes is minimized. The supporting structure should be adjustable to ensure correct meshing and proper rigidity. Since the comb plate is easily damaged by the impact of foreign objects, in order to facilitate the economic replacement of the comb plate, the split comb plate is mostly assembled on the elevator pedal. Since the split comb plate has many connection nodes with the elevator pedal, the manual assembly method is inefficient during assembly. Therefore, an escalator comb pedal assembly device is proposed to solve the above problems. Summary of the invention

[0003] The purpose of the present application is to solve the technical problem that when assembling multiple comb plates on the existing pedals, they need to be installed one by one, resulting in low assembly efficiency. Compared with the prior art, an escalator comb pedal assembly device is provided, including a positioning mechanism and a feeding mechanism, the positioning mechanism is arranged below the transmission mechanism, the transmission mechanism is used to transport the pedals, the feeding mechanism is fixed above the transmission mechanism through an XZ axis linear module, and the feeding mechanism is used to provide comb plates for the pedals and assemble the pedals and the comb plates by screws.

[0004] Furthermore, the pedal is equipped with multiple groups of comb plates, a lower assembly groove is provided on one side of the pedal, an upper assembly groove corresponding to the lower assembly groove is provided on one side of the comb plate, comb teeth are provided on the other side of the comb plate, and screw holes are provided on the opposite sides of the comb plate and the pedal.

[0005] Furthermore, the feeding mechanism includes a feeding pedal, a pneumatic clamp is provided on one side of the feeding pedal, the pneumatic clamp is used to clamp the comb teeth, and a chuck is provided on the other side of the feeding pedal, the chuck is used to clamp the screw holes of the comb plate.

[0006] Furthermore, the chucks are grouped in pairs, and a main slide is provided on the loading pedal. The main slide reciprocates in the vertical direction. The upper and lower sides of the main slide are symmetrically slidably connected with spacing adjustment plates. The two groups of spacing adjustment plates reciprocate relative to each other in the horizontal direction, and the two chucks in the same group are respectively fixed on the spacing adjustment plates on the upper and lower sides of the main slide.

[0007] Furthermore, the top of the main slide is also connected to a secondary slide in a vertically reciprocating sliding manner, and the secondary slide is provided with an electric screwdriver corresponding to the chuck; A through slot is provided on one side opposite to the two clamps in the same group for the output end of the electric screwdriver to pass through.

[0008] Furthermore, a feed trough is provided on the feeding pedal, and the feed trough corresponds to the chuck. The chuck is provided with a material guide groove on one side of the bottom of the through groove, and the chuck is provided with a limit groove on the other side of the bottom of the through groove. The material guide groove and the feed trough are both straight groove structures with a cross-section corresponding to the cross-section of the screw, and the limit groove is an annular groove structure with a cross-section corresponding to the cross-section of the screw, and the input end of the material guide groove is arranged opposite to the output end of the feed trough.

[0009] Furthermore, a baffle is provided on the side of the main slide opposite to the feed trough, and a feed notch corresponding to the output end of the feed trough is provided at the bottom of the baffle. The feed trough is filled with a plurality of screws, and the screws in the feed trough are pushed close to the baffle by a spring structure.

[0010] Furthermore, when the two groups of chucks are relatively close to a minimum distance, the bottom end contours of the two groups of chucks are smaller than the screw hole contour.

[0011] Furthermore, the positioning mechanism includes a positioning pedal fixed on the transmission mechanism frame, the positioning pedal is connected to a lifting plate in a reciprocating sliding manner in a vertical direction, and a positioning pin corresponding to the screw hole is fixed on the lifting plate.

[0012] Furthermore, the transmission mechanism is provided with a plurality of conveyor belts, the screw holes of the pedal and the comb plate are arranged between adjacent conveyor belt gaps, and a magnetic block is provided at the top end of the positioning pin.

[0013] Compared with the prior art, the advantages of this application are: The present application realizes the automated assembly of the comb plate and the pedal through the cooperation of the positioning mechanism and the feeding mechanism, can realize automatic assembly positioning and automatic assembly locking actions, has high assembly efficiency, has market prospects, and is suitable for promotion and application.

[0014] Other features and advantages of the present invention will be described in the following description, and part of them will become obvious from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them: Figure 1It is a schematic diagram of the structure of the pedal and comb plate proposed in this application; Figure 2 It is a structural schematic diagram when the feeding mechanism proposed in this application is not aligned with the positioning mechanism; Figure 3 It is a structural schematic diagram of the feeding mechanism and the positioning mechanism proposed in this application when they are aligned; Figure 4 It is a front structural schematic diagram of the feeding mechanism proposed in this application; Figure 5 It is a schematic diagram of the bottom structure of the feeding mechanism proposed in this application; Figure 6 It is a partial structural schematic diagram of the positioning mechanism proposed in this application; Figure 7 It is a schematic diagram of the structure of the spacing adjustment plate and the chuck proposed in this application; Figure 8 It is a schematic diagram of the structure of the chuck proposed in this application; Fig. 9 It is a schematic diagram of the use state of the chuck proposed in this application; Fig.10 This is a schematic diagram of the structure of the main slide and loading pedal proposed in this application; Fig.11 This is a schematic diagram of the cross-sectional structure of the feed trough proposed in this application. Fig.12 It is a schematic diagram of the state when the feeding mechanism proposed in this application clamps the comb plate to the top of the positioning mechanism; Fig.13 It is a schematic diagram of the state when the comb plate of the feeding mechanism proposed in this application is loosened to the top of the positioning mechanism; Fig.14 This is a schematic diagram of the state of the feeding mechanism proposed in this application when conveying screws.

[0016] Description of the numbers in the figure: Pedal 1, lower assembly groove 11, comb plate 2, upper assembly groove 21, comb teeth 22, screws 3, transmission mechanism 4, positioning mechanism 5, positioning pedal 51, lifting plate 52, positioning pin 521, feeding mechanism 6, feeding pedal 61, pneumatic clamp 611, feeding trough 612, main slide 62, baffle 621, feeding notch 622, auxiliary slide 63, electric screwdriver 631, spacing adjustment plate 64, chuck 7, through groove 71, limit groove 72, guide groove 73. DETAILED DESCRIPTION

[0017] The embodiments will be combined with the drawings in the specification to clearly and completely describe the technical solution of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making any creative work shall fall within the scope of protection of the present application.

[0018] The escalator comb-tooth pedal assembly device of the present invention is mainly applied to the technical problem that when assembling a plurality of comb-tooth plates 2 on the existing pedal 1, the pedal 1 needs to be installed one by one, resulting in low assembly efficiency.

[0019] Please refer to Figure 1 - Fig.14 As shown, Figure 1 It is a structural schematic diagram of a pedal and a comb plate, wherein a plurality of comb plates 2 are assembled on a pedal 1, a lower assembly groove 11 is provided on one side of the pedal 1, an upper assembly groove 21 corresponding to the lower assembly groove 11 is provided on one side of the comb plate 2, comb teeth 22 are provided on the other side of the comb plate 2, and screw holes are provided on the opposite sides of the comb plate 2 and the pedal 1. The above are all prior arts and will not be described in detail here.

[0020] An escalator comb pedal assembly device includes a positioning mechanism 5 and a feeding mechanism 6, wherein the positioning mechanism 5 is arranged below a transmission mechanism 4, the transmission mechanism 4 is used to convey a pedal 1, the feeding mechanism 6 is fixed above the transmission mechanism 4 through an XZ axis linear module, and the feeding mechanism 6 is used to provide a comb plate 2 for the pedal 1 and assemble the pedal 1 and the comb plate 2 through screws 3.

[0021] See also Figure 4 - Figure 6 The feeding mechanism 6 includes a feeding pedal 61, one side of the feeding pedal 61 is provided with a pneumatic clamp 611, the pneumatic clamp 611 is used to clamp the comb teeth 22, and the other side of the feeding pedal 61 is provided with a chuck 7, the chuck 7 is used to clamp the screw holes of the comb plate 2.

[0022] For details, please refer to Figure 7 - Fig. 9 The chucks 7 are grouped in pairs, and a main slide 62 is provided on the loading pedal 61. The main slide 62 is driven by a cylinder to reciprocate in the vertical direction. The upper and lower sides of the main slide 62 are symmetrically slidably connected with spacing adjustment plates 64. The two groups of spacing adjustment plates 64 reciprocate relative to each other in the horizontal direction. The two groups of spacing adjustment plates 64 are driven by a cylinder to perform relative displacement. The two chucks 7 in the same group are respectively fixed on the spacing adjustment plates 64 on the upper and lower sides of the main slide 62.

[0023] When the two groups of clamps 7 are relatively close to a minimum distance, the bottom end contours of the two groups of clamps 7 are smaller than the screw hole contour.

[0024] See also Figure 6The positioning mechanism 5 includes a positioning pedal 51 fixed on the frame of the transmission mechanism 4. The positioning pedal 51 is connected to a lifting plate 52 in a reciprocating sliding manner in the vertical direction. A positioning pin 521 corresponding to the screw hole is fixed on the lifting plate 52. It should be noted that the downward movement of the lifting plate 52 is driven by the Z-axis linear module, and the upward movement of the lifting plate 52 is driven by the spring force. A distance sensor (not shown in the figure) for detecting the displacement distance of the lifting plate 52 is also provided between the lifting plate 52 and the positioning pedal 51.

[0025] See also Figure 2 - Figure 3 To facilitate the upward movement of the positioning pin 521 , the transmission mechanism 4 is provided with multiple sets of conveyor belts, the screw holes of the pedal 1 and the comb plate 2 are arranged between the adjacent conveyor belt gaps, and a magnetic block is provided at the top of the positioning pin 521 .

[0026] See also Fig.12 When the feeding mechanism 6 needs to clamp multiple groups of comb tooth plates 2, the XZ axis linear module drives the feeding mechanism 6 to move above the comb tooth plate 2 and move downward, and the bottom end profile of the two groups of chucks 7 is reduced by the relative proximity of the spacing adjustment plate 64, and the chucks 7 are moved downward and inserted into the screw holes of the comb tooth plate 2 under the drive of the main slide 62. At this time, the two groups of chucks 7 are relatively far away from each other, and the pneumatic clamping jaws 611 are used to tighten and clamp the comb teeth 22, so that multiple groups of comb tooth plates 2 can be clamped synchronously for displacement, and the screw holes of the comb tooth plate 2 are kept coaxial with the positioning pin 521.

[0027] When the XZ axis linear module drives the feeding mechanism 6 and the comb plate 2 clamped by the feeding mechanism 6 to move to the top of the transmission mechanism 4, the bottom surface of the comb plate 2 is kept flush with the bottom surface of the pedal 1 transported by the transmission mechanism 4. In order to keep the left and right position of the pedal 1 transported by the transmission mechanism 4, a baffle (not shown in the figure) is also provided on the transmission mechanism 4. Since the bottom surface of the comb plate 2 is flush with the bottom surface of the pedal 1, the left and right positions of the pedal 1 are fixed. Therefore, when the pedal 1 is transported to the comb plate 2, the lower assembly groove 11 is aligned with the upper assembly groove 21. At this time, the screw holes of the pedal 1 and the comb plate 2 coincide, and the locating pin 521 is moved upward through the screw hole of the pedal 1 by the spring force. Since the screw hole of the comb plate 2 is coaxially arranged with the locating pin 521, after the locating pin 521 passes through the screw hole of the pedal 1, the positioning action before the assembly of the pedal 1 and the comb plate 2 can be completed, which effectively improves the accuracy of assembly.

[0028] See also Figure 4 The top of the main slide 62 is also connected to a secondary slide 63 for reciprocating sliding in the vertical direction. The secondary slide 63 is provided with an electric screwdriver 631 corresponding to the chuck 7. The opposite side of the two chucks 7 in the same group is provided with a through groove 71 for the output end of the electric screwdriver 631 to pass through.

[0029] See also Fig.13When it is necessary to provide screws 3 for the electric screwdriver 631, the chuck 7 is relatively close and disengaged from the screw hole of the comb plate 2 by the upward movement of the main slide 62. It should be noted that during the upward movement of the chuck 7, the positioning pin 521 automatically follows the chuck 7 to move upward synchronously using the spring force, so that the positioning pin 521 passes through the screw holes of the pedal 1 and the comb plate 2 at the same time, and cooperates with the action of the pneumatic clamp 611 to clamp the comb teeth 22, and continues to provide stable positioning and clamping for the comb plate 2 and the pedal 1.

[0030] See also Fig.10 - Fig.11 A feeding trough 612 is also provided on the feeding pedal 61, and the feeding trough 612 corresponds to the chuck 7. The chuck 7 is provided with a material guide groove 73 on one side of the bottom of the through groove 71, and the chuck 7 is provided with a limiting groove 72 on the other side of the bottom of the through groove 71. The material guide groove 73 and the feeding trough 612 are both straight groove structures whose cross-sections correspond to the cross-sections of the screw 3, and the limiting groove 72 is an annular groove structure whose cross-sections correspond to the cross-sections of the screw 3. The input end of the material guide groove 73 is arranged opposite to the output end of the feeding trough 612.

[0031] It should be noted that, in this embodiment, a baffle 621 is further provided on the side of the main slide 62 opposite to the feed trough 612, and a feed notch 622 corresponding to the output end of the feed trough 612 is provided at the bottom of the baffle 621, and the feed trough 612 is filled with a plurality of screws 3, and the screws 3 in the feed trough 612 are pushed close to the baffle 621 by a spring structure.

[0032] See also Fig.11 and Fig.14 When it is necessary to provide screws 3 for the electric screwdriver 631, the main slide 62 drives the chuck 7 to move upward. When the chuck 7 is separated from the screw hole of the comb plate 2, the two groups of chucks 7 are moved away from each other, so that the limit groove 72 and the guide groove 73 maintain the groove width corresponding to the feed groove 612. Since the upward movement of the main slide 62 synchronously drives the baffle plate 621 to move upward, when the feed notch 622 of the baffle plate 621 coincides with the feed groove 612, the screw 3 in the feed groove 612 is pushed to the guide groove 73 by the thrust of the spring structure. In the limit groove 72, the chuck 7 is driven downward by the main slide 62 again. During the downward movement, the baffle 621 closes the port of the feed groove 612, so that the screw 3 in the feed groove 612 is no longer fed outward. At the same time, the auxiliary slide 63 drives the electric screwdriver 631 to move downward. When the output end of the electric screwdriver 631 reaches the top of the screw 3, the electric screwdriver 631 starts at a low speed and keeps the electric screwdriver 631 moving downward, so that the output end of the electric screwdriver 631 can reach a matching state with the cross groove at the top of the screw 3 under low-speed rotation. It should be noted that after the screw 3 enters the limiting groove 72, the bottom end of the screw 3 is lower than the bottom end of the chuck 7. Therefore, when the chuck 7 moves down to the top of the screw hole of the comb plate 2, the two sets of chucks 7 cannot pass through the screw hole due to the outward expansion, and the exposed bottom end of the screw 3 is just stuck in the screw hole of the comb plate 2, and the low-speed rotation of the electric screwdriver 631 is used to complete the initial locking of the screw 3 in the screw hole of the comb plate 2. At this time, the chuck 7 is moved away from the outward expansion, so that the screw 3 is released from the restriction of the limiting groove 72. Under the premise that the downward movement of the main slide 62 is limited, the auxiliary slide 63 drives the electric screwdriver 631 to continue to move downward, and cooperates with the rapid start of the electric screwdriver 631 to drive the screw 3 to be screwed into the screw holes of the comb plate 2 and the pedal 1 in turn to complete the assembly and locking action.

[0033] Since a magnetic block is provided at the top of the locating pin 521, when the bottom end of the screw 3 moves down to the screw hole of the comb plate 2, the magnetic force of the magnetic block can be used to provide an adsorption guide for the screw 3, so as to maintain the alignment accuracy of the screw 3 when it moves downward. Meanwhile, during the screwing-in process of the screw 3, the locating pin 521 is pressed and continues to move downward. The downward movement of the locating pin 521 is detected by the distance sensor, so the screwing-in amount of the screw 3 can be detected. When the screwing-in amount of the screw 3 reaches the designed value, the distance sensor feeds back a signal to the electric screwdriver 631 to stop it from rotating. At this time, the positioning mechanism 5 and the feeding mechanism 6 are reset in turn, and the assembled comb plate 2 and pedal 1 are transmitted forward by the transmission mechanism 4, and the positioning mechanism 5 and the feeding mechanism 6 then perform a cycle operation.

[0034] The present application realizes the automated assembly of the comb plate 2 and the pedal 1 through the cooperation of the positioning mechanism 5 and the feeding mechanism 6, and can realize automatic assembly positioning and automatic assembly locking actions. It has high assembly efficiency, has market prospects, and is suitable for promotion and application.

[0035] The above is only the best implementation method adopted by this application in combination with current actual needs, but the protection scope of this application is not limited to this.

Claims

1. An escalator comb pedal assembly device, comprising a positioning mechanism (5) and a feeding mechanism (6), characterized in that: The positioning mechanism (5) is arranged below the transmission mechanism (4), the transmission mechanism (4) is used to transport the pedal (1), the feeding mechanism (6) is fixed above the transmission mechanism (4) via an XZ axis linear module, and the feeding mechanism (6) is used to provide a comb plate (2) for the pedal (1) and assemble the pedal (1) and the comb plate (2) via screws (3).

2. The escalator comb pedal assembly device according to claim 1, characterized in that: The pedal (1) is equipped with a plurality of comb tooth plates (2), one side of the pedal (1) is provided with a lower assembly groove (11), one side of the comb tooth plate (2) is provided with an upper assembly groove (21) corresponding to the lower assembly groove (11), the other side of the comb tooth plate (2) is provided with comb teeth (22), and the sides of the comb tooth plate (2) and the pedal (1) opposite to each other are both provided with screw holes.

3. The escalator comb pedal assembly device according to claim 2, characterized in that: The feeding mechanism (6) comprises a feeding pedal (61), one side of the feeding pedal (61) is provided with a pneumatic clamp (611), the pneumatic clamp (611) is used to clamp the comb teeth (22), and the other side of the feeding pedal (61) is provided with a chuck (7), the chuck (7) is used to clamp the screw holes of the comb tooth plate (2).

4. The escalator comb pedal assembly device according to claim 3, characterized in that: The chucks (7) are arranged in pairs relative to each other as a group. A main slide (62) is provided on the feeding pedal (61). The main slide (62) reciprocates in the vertical direction. The upper and lower sides of the main slide (62) are symmetrically slidably connected with spacing adjustment plates (64). The two groups of spacing adjustment plates (64) reciprocate relative to each other in the horizontal direction. The two chucks (7) in the same group are respectively fixed on the spacing adjustment plates (64) on the upper and lower sides of the main slide (62).

5. The escalator comb pedal assembly device according to claim 4, characterized in that: The top of the main slide (62) is also connected to a secondary slide (63) in a reciprocating sliding manner in the vertical direction, and the secondary slide (63) is provided with an electric screwdriver (631) corresponding to the chuck (7); A through slot (71) is provided on the opposite side of the two clamps (7) in the same group to facilitate the passage of the output end of the electric screwdriver (631).

6. The escalator comb pedal assembly device according to claim 5, characterized in that: The loading pedal (61) is also provided with a feed trough (612), the feed trough (612) corresponding to the chuck (7), the chuck (7) is provided with a material guide trough (73) on one side of the bottom of the through slot (71), the chuck (7) is provided with a limit slot (72) on the other side of the bottom of the through slot (71), the material guide trough (73) and the feed trough (612) are both straight trough structures with a cross section corresponding to the cross section of the screw (3), the limit slot (72) is an annular trough structure with a cross section corresponding to the cross section of the screw (3), and the input end of the material guide trough (73) is arranged opposite to the output end of the feed trough (612).

7. The escalator comb pedal assembly device according to claim 6, characterized in that: A baffle (621) is further provided on the side of the main slide (62) opposite to the feed trough (612); a feed notch (622) corresponding to the output end of the feed trough (612) is provided at the bottom of the baffle (621); a plurality of screws (3) are filled in the feed trough (612); and the screws (3) in the feed trough (612) are pushed toward the baffle (621) by a spring structure.

8. The escalator comb pedal assembly device according to claim 7, characterized in that: When the two groups of chucks (7) are relatively close to each other to a minimum distance, the bottom end contours of the two groups of chucks (7) are smaller than the screw hole contours.

9. The escalator comb pedal assembly device according to claim 8, characterized in that: The positioning mechanism (5) comprises a positioning pedal (51) fixed on a frame of the transmission mechanism (4); the positioning pedal (51) is connected to a lifting plate (52) in a reciprocating sliding manner in a vertical direction; and a positioning pin (521) corresponding to the screw hole is fixed on the lifting plate (52).

10. The escalator comb pedal assembly device according to claim 9, characterized in that: The transmission mechanism (4) is provided with a plurality of conveyor belts, the screw holes of the pedal (1) and the comb plate (2) are arranged between adjacent conveyor belt gaps, and a magnetic block is arranged at the top end of the positioning pin (521).

Images