A tooling for detecting the straightness of pedal tooth profiles

Abstract

The present invention discloses a tooling for detecting the straightness of a pedal tooth profile, comprising a base, a connecting plate and a detection tooth plate; the connecting plate is arranged above the base and is slidably connected to the base along a first direction; tooth parts are arranged on the bottom surface of the detection tooth plate in an arrangement along a second direction; each of the tooth parts extends along the first direction; the detection tooth plate is divided into at least two independent units along the second direction; there is an assembly state between each group of the independent units and the connecting plate; in the assembly state, the independent units are detachably arranged on the connecting plate, and the independent units are combined with each other to form the detection tooth plate. The tooling of the present invention can detect the straightness of the pedal tooth profile to ensure that the straightness of the tooth profile of the produced pedal reaches the design standard.

Description

Technical Field

[0001] The present invention relates to the technical field of escalators, and particularly to a tooling for detecting the straightness of the tooth profile of a step board. Background Art

[0002] For the manufacturers of the steps of escalators, the step boards of various specifications are one of the most prominent components. Generally, the manufacturing process of the step board is carried out under the working of a punching press. The forming quality of the step board is affected by many factors, such as die wear, changes in the hardness of materials, and worker operation. And the standard of the straightness of each tooth profile on the step board is very important because it will directly affect the later operation of the step. The tooth profile of the step is to pass through the comb tooth plate on the front edge plate of the elevator. If the straightness of the tooth profile of the step does not meet the standard, it will get stuck with the rack of the comb tooth plate, resulting in unsmooth operation of the step and safety problems. At present, during the on-site commissioning of escalators, it is found that due to the problem of the poor straightness of the tooth profile of the step, the on-site commissioning is unqualified. Therefore, it is necessary to quickly research and develop a special tooling for measuring the straightness of the tooth profile of the step to check the step to ensure that the straightness of the tooth profile of the produced step fully meets the standard. Summary of the Invention

[0003] Aiming at the above existing technical problems, the object of the present invention is to propose a tooling for detecting the straightness of the tooth profile of a step board to ensure that the straightness of the tooth profile of the produced step board reaches the design standard.

[0004] The technical solution of the present invention is realized as follows: A tooling for detecting the straightness of the tooth profile of a step board includes a base, a connecting plate, and a detection tooth plate;

[0005] The connecting plate is arranged above the base and is slidably connected to the base along a first direction;

[0006] Tooth parts are arranged on the bottom surface of the detection tooth plate along a second direction; each tooth part extends along the first direction; the detection tooth plate is divided into at least two independent units along the second direction;

[0007] Each group of the independent units and the connecting plate have an assembled state; in the assembled state, the independent units are detachably arranged on the connecting plate, and the independent units are combined with each other to form the detection tooth plate.

[0008] Furthermore, the first direction is in a horizontal plane; the second direction is a direction perpendicular to the first direction in a horizontal plane; the third direction is in a vertical plane.

[0009] Further, the tooling includes a locking member; in the assembled state, the independent unit is inserted into the connecting plate in the first direction, and the independent unit is locked to the connecting plate in the third direction by the locking member.

[0010] Further, a connecting member is provided above each group of the independent units; the connecting member extends in the first direction; a plugging gap is formed between the connecting member and the independent unit; the first end of the connecting member in the first direction is connected to the independent unit; the second end of the connecting member in the first direction forms a free end; in the assembled state, the connecting plate is located in the plugging gap in a clearance fit manner.

[0011] Further, the locking member is a bolt; each group of the independent units is provided with a threaded hole; a through hole corresponding to the threaded hole is provided on the connecting plate; in the assembled state, the through hole and the threaded hole correspond to each other in the third direction.

[0012] Further, a limiting post for defining the position of the pedal is provided on the base; the limiting posts are distributed on the base corresponding to the positions of the mounting holes on the pedal; the outer diameter of the upper end of the limiting post is smaller than the aperture of the mounting hole on the pedal.

[0013] Further, the lower end of the limiting post is threadedly connected to the base.

[0014] Due to the application of the above technical solutions, the present invention has the following advantages compared with the prior art:

[0015] 1. By the combined use of the detection tooth plate and the connecting plate in the present invention, the detection tooth plate can move back and forth along a predetermined direction under the drive of the connecting plate. The tooth part of the detection tooth plate is adapted to the tooth-shaped groove formed between the teeth of the pedal with a standard size. If the tooth part fully moves between the tooth-shaped grooves of the pedal to be detected, it indicates that the straightness of the tooth shape of the pedal meets the design standard. On the contrary, if the tooth part of the detection tooth plate gets stuck when moving between the tooth-shaped grooves of the pedal to be detected, it indicates that the straightness of the tooth shape of the pedal does not meet the design standard and rework is required. In the above way, the detection of the straightness of the tooth shape of the pedal can be realized, which can effectively improve the qualified rate of pedal production and meet the requirements of later on-site assembly and debugging.

[0016] 2. The present invention divides the detection tooth plate into several groups of independent units, eliminating the problem of large processing difficulty caused by the too long length of the detection tooth plate. In addition, one or several groups of independent units can be replaced separately to meet the detection requirements for the straightness of the tooth shapes at different positions on the pedal.

[0017] 3. The present invention utilizes connectors to facilitate assembly. During assembly, the individual units are pre-connected to the connecting plate using the connectors, ensuring that the threaded holes on the individual units align with the through holes on the connecting plate. The individual units are then secured to the connecting plate using locking members. This eliminates the need for multiple people to coordinate and install the individual units, making assembly and disassembly convenient and effectively meeting the need for replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The technical solution of the present invention will be further described below with reference to the accompanying drawings:

[0019] Figure 1 A schematic diagram of the three-dimensional structure of a pedal in the prior art;

[0020] Figure 2 for Figure 1 A magnified view of point A in the figure;

[0021] Figure 3 It is a schematic diagram of the overall structure of the tooling of the present invention;

[0022] Figure 4 for Figure 3 Schematic diagram of the main view structure;

[0023] Figure 5 for Figure 4 Schematic diagram of the three-dimensional structure of the independent unit;

[0024] Figure 6 This is a schematic diagram of the three-dimensional structure of the tooling of the present invention when testing a pedal;

[0025] Figure 7 for Figure 6 Enlarged view of point B in FIG.

[0026] Figure 8 for Figure 6 Schematic diagram of the main view structure;

[0027] Figure 9 for Figure 8 The enlarged view of point D in the figure;

[0028] Figure 10 This is a schematic diagram of the overall structure of the tooling of the present invention when a connecting piece is added;

[0029] Figure 11 for Figure 10 Schematic diagram of the three-dimensional structure of the independent units and connectors;

[0030] Figure 12 for Figure 11 A schematic diagram of the rear view structure of FIG.

[0031] Figure 13 Schematic diagram of the three-dimensional structure of the limiting column of the present invention;

[0032] Wherein: 1. Base; 2. Connecting plate; 21. Through hole; 3. Detection tooth plate; 31. Tooth part; 4. Independent unit; 41. Threaded hole; 5. Limit post; 6. Limit block; 7. Pedal; 71. Tooth shape; 72. Mounting hole; 8. Connecting piece; 81. Handle. Specific implementation mode

[0033] The following will elaborate on the preferred embodiments of the present invention in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0034] As Figure 3-9 shown, a tool for detecting the straightness of the tooth shape of a pedal described in the present invention includes a base 1, a connecting plate 2, and a detection tooth plate 3. The connecting plate 2 is installed above the base 1 and is slidably connected to the base 1 in a first direction. The specific connection method between the connecting plate 2 and the base 1 is that guide rails are installed on the left and right sides of the top surface of the base 1, and the guide rails extend in the front-rear direction. Sliders are installed on the guide rails in a sliding fit manner, and both ends of the connecting plate 2 are installed on the sliders on both sides, so that the connecting plate 2 can move back and forth in the front-rear direction.

[0035] As Figure 1 , 2 shown, the pedal 7 in the prior art is shown. Tooth shapes 71 are arranged and processed along the width direction of the pedal surface of the pedal 7. Tooth-shaped grooves are formed between adjacent tooth shapes 71. Tooth parts 31 are arranged and processed along a second direction on the bottom surface of the above-mentioned detection tooth plate 3. Each tooth part 31 extends in the first direction. The tooth part 31 is adapted to the tooth-shaped groove of the pedal 7 with a standard size. The detection tooth plate 3 is detachably installed on the connecting plate, and a set spacing is formed between the tooth part 31 and the upper surface of the base 1. In this embodiment, the detection tooth plate 3 is installed on the connecting plate 2 by means of bolt connection.

[0036] As Figure 8 , 9 shown, place the pedal 7 on the base 1 and adjust the position of the pedal 7 so that the tooth part 31 can correspond to the tooth-shaped groove on the pedal 7. Push the detection tooth plate 3 to move back and forth in a predetermined direction. If the tooth part 31 fully moves between the tooth-shaped grooves of the pedal 7 to be detected, it indicates that the straightness of the tooth shape 71 of the pedal 7 meets the design standard. On the contrary, if the tooth part 31 on the detection tooth plate 3 gets stuck when moving between the tooth-shaped grooves of the pedal 7 to be detected, it indicates that the straightness of the tooth shape 71 of the pedal 7 does not meet the design standard and needs to be reworked.

[0037] The detection tooth plate 3 is divided into at least two independent units 4 along the second direction. Preferably, it is divided into three independent units 4. Each independent unit 4 can be processed separately by processing means in the prior art. The design size, processing accuracy of each independent unit 4 are determined according to actual requirements. There is an assembled state between each group of independent units 4 and the connecting plate 2. In the assembled state, the independent unit 4 is detachably mounted on the connecting plate 2, and the independent units 4 are combined with each other to form the detection tooth plate 3.

[0038] Specifically, in the above-mentioned assembled state, the independent unit 4 is inserted into the connecting plate 2 along the first direction, and the independent unit 4 is locked on the connecting plate 2 in the third direction (vertical direction) by a locking member. After the insertion fit, the independent unit 4 is located below the connecting plate 2. The above-mentioned locking member is preferably a bolt, and threaded holes 41 are processed on the top surface of each group of independent units 4. Through holes 21 corresponding to the threaded holes 41 are processed on the connecting plate 2. In the aforementioned assembled state, the through holes 21 and the threaded holes 41 are vertically aligned. Insert the bolt into the through hole 21 and the threaded hole 41 to lock the independent unit 4 on the connecting plate 2.

[0039] In this embodiment, a connecting member 8 is installed corresponding to each independent unit 4. The connecting member 8 is installed above the independent unit 4 and extends along the first direction (front-back direction). A plugging gap is formed between the connecting member 8 and the independent unit 4. The first end of the connecting member 8 in the first direction is connected to the independent unit 4 by welding or bolting. The second end of the connecting member 8 in the first direction forms a free end. In the mating state, the independent unit 4 is inserted onto the connecting plate 2 from the direction of the second end of the connecting member 8, and the connecting plate 2 enters the plugging gap in a clearance fit manner, so as to install the independent unit 4 onto the connecting plate 2. A handle 81 is installed on the connecting member 8 to facilitate lifting and moving the independent unit 4.

[0040] The independent unit 4 is pre-connected to the connecting plate 2 through the connecting member 8 so that the threaded holes 41 on the independent unit 4 are aligned with the through holes 21 on the connecting plate 2, and then the independent unit 4 is locked to the connecting plate 2 by a locking member. The above operation method can install the independent unit on the connecting plate without the cooperation of multiple people, and the independent unit is convenient to disassemble and install, effectively meeting the replacement requirements of the independent unit.

[0041] The third direction in this embodiment is the vertical direction. The aforementioned first direction is in a horizontal plane, and the first direction in this embodiment is the front-back direction. The second direction is the direction perpendicular to the first direction in a horizontal plane, and the second direction in this embodiment is the left-right direction.

[0042] Such as Figure 3 、 6As shown in FIGS. 7 and 13, in order to accurately position the pedal 7 on the base 1, a limit post 5 for limiting the position of the pedal 7 is installed on the base 1. The limit posts 5 are distributed on the base 1 corresponding to the positions of the mounting holes 72 on the pedal 7. In this embodiment, there are four groups of limit posts 6 arranged on the base 1. The outer diameter of the upper end of the limit post 5 is smaller than the aperture of the mounting hole 72 on the pedal 7. The mounting hole 72 on the pedal 7 is sleeved on the upper end of the corresponding limit post 5, thereby realizing the positioning of the pedal 7. The mounting hole 72 and the upper end of the limit post 5 are connected in a clearance fit manner. The lower end of the limit post 5 is threadedly connected to the base 1, so that the limit post 5 can be replaced according to the actual situation.

[0043] The above are only embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A tooling for detecting the straightness of the pedal tooth profile, comprising a base, a connecting plate and a detecting tooth plate; characterized in that: The connecting plate is arranged above the base and is slidably connected to the base along a first direction; Tooth portions are arranged on the bottom surface of the detecting tooth plate along a second direction; each tooth portion extends along the first direction; the detecting tooth plate is divided into at least two independent units along the second direction; There is an assembling state between each group of the independent units and the connecting plate; in the assembling state, the independent units are detachably arranged on the connecting plate, and the independent units are combined with each other to form the detecting tooth plate; The tooling includes a locking member; in the assembling state, the independent units are inserted into the connecting plate along the first direction, and the independent units are locked on the connecting plate in a third direction through the locking member; A connecting member is arranged above each group of the independent units; the connecting member extends along the first direction; a plugging gap is formed between the connecting member and the independent unit; the first end of the connecting member in the first direction is connected to the independent unit; the second end of the connecting member in the first direction forms a free end; in the assembling state, the connecting plate is located in the plugging gap in a clearance fit manner; The first direction is in a horizontal plane; the second direction is a direction perpendicular to the first direction in a horizontal plane; the third direction is in a vertical plane.

2. The tooling for detecting the straightness of the pedal tooth profile according to claim 1, characterized in that: The locking member is a bolt; a threaded hole is arranged on each group of the independent units; a through hole corresponding to the threaded hole is arranged on the connecting plate; in the assembling state, the through hole and the threaded hole correspond to each other in the third direction.

3. The tooling for detecting the straightness of the pedal tooth profile according to claim 1, characterized in that: Limit columns for defining the position of the pedal are arranged on the base; the limit columns are distributed on the base corresponding to the positions of the mounting holes on the pedal; the outer diameter of the upper end of the limit column is smaller than the aperture of the mounting hole on the pedal.

4. The tooling for detecting the straightness of the pedal tooth profile according to claim 3, wherein: The lower end of the limit column is threadedly connected to the base.

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