A pedal welding part shaping tool

Abstract

The present invention discloses a pedal welding part shaping tool, comprising a table, a shaping vertical plate, a driving assembly and a side limit assembly; the table is used to place the pedal welding part; at least one set of avoidance holes is provided on the table; the shaping vertical plate is movably arranged in the avoidance holes; the top surface of the shaping vertical plate is an arc-shaped surface convex upward; the driving assembly is used to drive the shaping vertical plate to move up and down; the side limit assembly is arranged on the table and is located on the left and right sides of the avoidance holes; the side limit assembly cooperates with the two ends of the pedal welding part to limit the displacement of the pedal welding part in the vertical direction. The present invention can solve the deformation problem of the middle position of the reinforcing rib of the pedal welding part and the welding position of the pedal surface, effectively improve the production quality of the pedal welding part, and meet the assembly requirements of the pedal welding part in the later stage.

Description

Technical Field

[0001] The invention relates to the technical field of escalators, in particular to a pedal welding piece shaping tool. Background Art

[0002] In the production process of escalator step pedals and sidewalk pedals, the most commonly used processing technology is sheet metal processing, such as punching, bending, forming, welding, etc. Figure 1 The figure shows a current pedal weldment, and the process is to weld a 0.5mm thick pedal surface 81 and three 1.5mm thick reinforcing ribs 8 into one piece by resistance welding. Although a special automatic welding machine is used, the most reasonable parameters are set, and the motion program is compiled to ensure a certain degree of welding level and firmness. However, the thickness of the two materials is relatively thin and there are many welding points, which affects the flatness of the welded pedal weldment.

[0003] Although there are currently specialized personnel for manual shaping, the flatness of the pedal welded parts is still not ideal. Research has found that the problem of unsatisfactory flatness of the pedal welded parts is mainly reflected in the middle welding point position of the pedal surface 81 (i.e., the position where the middle position of the reinforcing rib 8 is welded to the pedal surface 81). The deformation of the middle welding point position is the main factor leading to the unsatisfactory flatness of the pedal welded parts. Summary of the invention

[0004] In view of the above-mentioned technical problems, the purpose of the present invention is to propose a pedal welding part shaping tooling, which can solve the deformation problem of the welding position between the middle position of the reinforcing rib and the pedal surface, effectively improve the production quality of the pedal welding parts, and meet the assembly requirements of the later pedal welding parts.

[0005] The technical solution of the present invention is achieved as follows: a pedal welding part shaping tool, including a table, a shaping vertical plate, a driving assembly and a side limit assembly;

[0006] The table is used to place pedal welding parts; at least one set of avoidance holes is provided on the table;

[0007] The shaping upright plate is movably arranged in the avoidance hole; the top surface of the shaping upright plate is an arc-shaped surface convex upward;

[0008] The driving assembly is used to drive the shaping vertical plate to move up and down;

[0009] The side limit assembly is arranged on the table and is located on the left and right sides of the avoidance hole; the side limit assembly cooperates with the two ends of the pedal welding part to limit the displacement of the pedal welding part in the vertical direction.

[0010] Furthermore, the shaping vertical plate is arranged in the avoidance hole in a clearance fit manner.

[0011] Furthermore, the driving assembly includes a push plate and an actuator; the push plate is arranged below the table; the shaping vertical plate is connected to the push plate; the actuator is connected to the push plate and is used to drive the push plate to move up and down.

[0012] Furthermore, an adjustment assembly is provided between the push plate and the table; the adjustment assembly includes a screw, a nut and a spring; the screw is arranged vertically and is threadedly connected to the push plate; the screw has an abutting end for abutting against the table; the nut is threadedly connected to the screw for locking the screw on the push plate; the spring is distributed between the table and the push plate; the upper end of the spring is connected to the table, and the lower end is connected to the push plate.

[0013] Furthermore, the side limit assembly includes a limit block and a connecting piece; the limit block is arranged above the table top and has a set distance between it and the table top; the limit block has a first end close to the avoidance hole and a second end away from the avoidance hole; the second end of the limit block is fixedly connected to the table top through the connecting piece.

[0014] Furthermore, a padding strip is provided between the side limit assemblies on both sides of the platform; and the pedal welding part is placed on the padding strip.

[0015] Furthermore, a rear end limit assembly is provided on the platform for limiting the movement of the pedal welding part toward the rear side of the platform.

[0016] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0017] 1. The present invention uses a shaping vertical plate in cooperation with a driving assembly to drive the shaping vertical plate to move upward, so that the top of the shaping vertical plate contacts the middle welding position of the reinforcing rib in the pedal welding part, and applies pressure, thereby realizing the shaping operation of the welding position between the middle position of the reinforcing rib and the pedal surface. The top of the shaping vertical plate is designed as an upwardly convex arc surface to improve the shaping effect.

[0018] 2. The present invention can limit the upward displacement of the pedal welding part in the vertical direction by using the side limit assembly in cooperation. The side limit assembly cooperates with the shaping vertical plate to realize the shaping operation of the pedal welding part.

[0019] 3. The present invention uses an adjustment component that can adjust the compression of the spring, and further adjust the pressure applied to the middle welding position of the reinforcing rib to meet the needs of shaping operations of pedal welded parts with different degrees of deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The technical solution of the present invention is further described below in conjunction with the accompanying drawings:

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of a pedal welding part in the prior art;

[0022] Figure 2 for Figure 1 A schematic diagram of a three-dimensional structure from another perspective;

[0023] Figure 3 It is a schematic diagram of the main view structure of the present invention;

[0024] Figure 4 for Figure 3 The enlarged view of point B in the figure;

[0025] Figure 5 for Figure 3 The enlarged view of AA in the figure;

[0026] Figure 6 for Figure 5 The enlarged view of point D in the figure;

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the table and other components of the present invention;

[0028] Figure 8 It is a schematic diagram of the main view structure of the pedal welding part when it is placed on the table;

[0029] Among them: 1. Table; 11. Avoidance hole; 2. Shaping vertical plate; 21. Arc surface; 3. Actuator; 31. Push plate; 4. Limit block; 51. Connector; 5. Rear end limit assembly; 6. Heightening strip; 7. Screw; 71. Nut; 72. Spring; 8. Reinforcement rib; 81. Reinforcement rib. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described in detail below 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.

[0031] like Figure 3-6 The figure shows a pedal weldment shaping tooling according to the present invention, comprising a table 1, a shaping vertical plate 2, a driving assembly and a side limit assembly. The table is mounted on a bracket. The table 1 is used to place the pedal weldment to be shaped. At least one group of avoidance holes 11 is processed on the table 1. The number of avoidance holes 11 corresponds to the number of reinforcing ribs 8. In the present embodiment, 3 groups of avoidance holes 11 are arranged, and the avoidance holes 11 are rectangular holes, and the length direction of the avoidance holes 11 is consistent with the placement direction of the reinforcing ribs 8 of the pedal weldment. In the present embodiment, the length direction of the avoidance holes 11 is the left-right direction.

[0032] The above-mentioned shaping upright plate 2 is installed in each group of avoidance holes 11 in a clearance fit manner, so that the shaping upright plate 2 can move up and down in the avoidance holes 11. The top surface of the shaping upright plate 2 is processed into an upwardly protruding arc surface 21. The driving component is installed below the shaping upright plate 2, which is connected to the shaping upright plate 2 and is used to drive the shaping upright plate 2 to move up and down. The side limit assembly is installed on the table 1 and is located on the left and right sides of the avoidance holes 11. The side limit assembly cooperates with the two ends of the pedal weldment to limit the displacement of the pedal weldment in the vertical direction. Through the above-mentioned structural design, the pedal weldment is placed on the table 1, and the middle position of each group of reinforcing ribs 8 corresponds to the shaping upright plate 2 below. The driving assembly drives the shaping upright plate 2 to move upward, and the arc surface 21 of the shaping upright plate 2 contacts the middle position of the reinforcing rib 8 and pushes the pedal weldment upward. Limited by the side limit assembly, the pedal weldment stops moving after being lifted to a certain height. At this position, the shaping upright plate 2 applies pressure to the middle position of the reinforcing rib 8 to integrate the deformed position of the reinforcing rib 8 into a plane. The top of the shaping upright plate 2 is designed as an upwardly convex arc surface 21, which effectively releases the arc surface 21 from the middle welding position of the reinforcing rib 8, thereby improving the shaping effect.

[0033] The driving assembly includes a push plate 31 and an actuator 3. The push plate 31 is movably mounted below the table 1. The lower end of the shaping vertical plate 2 is connected to the push plate 31 by welding or bolting. The actuator 3 is connected to the push plate 31 and is used to drive the push plate 31 to move up and down. The actuator 3 in this embodiment is preferably a cylinder. One end of the piston rod of the cylinder is connected to the push plate 31 through a joint.

[0034] An adjustment assembly is installed between the push plate 31 and the table 1. The adjustment assembly includes a screw rod 7, a nut 71 and a spring 72. The screw rod 7 is arranged vertically and is threadedly connected to the push plate 2. The upper end of the screw rod 7 extends to the top of the push plate 31. The screw rod 7 has an abutting end for abutting against the table 1 (the abutting end is the top of the screw rod 7 in this embodiment). The nut 71 is threadedly connected to the screw rod 7 and is used to lock the screw rod 7 on the push plate 31. The method of locking the screw rod 7 by the nut 71 is the prior art and is not described in detail. The spring 72 is distributed between the table 1 and the push plate 31. The upper end of the spring 72 is connected to the table 1, and the lower end is connected to the push plate 31. In this embodiment, four groups of springs 72 are installed, and the springs 72 are always in a compressed state during the upward movement of the push plate 31. When the actuator 3 drives the push plate 31 to move upward, the top of the screw rod 7 can abut against the table 1, thereby limiting the push plate 31 from continuing to move upward. By screwing the screw 7, the upper and lower positions of the screw 7 on the push plate 31 can be adjusted, so that the upper limit position of the push plate 31 can be adjusted, thereby adjusting the compression amount of the spring 72. Affected by the reaction force of the spring 72, the force applied to the pedal weldment during the shaping operation can be adjusted.

[0035] The screw rod 7 mentioned above can be arranged corresponding to the spring 72 so that the spring 72 can be sleeved on the screw rod 7 .

[0036] like Figure 7 As shown, the above-mentioned side limit assembly includes a limit block 4 and a connecting member 41. The limit block 4 is installed above the table 1 and has a set distance between it and the table 1. The limit block 4 has a first end close to the avoidance hole 11 and a second end away from the avoidance hole 11. The second end of the limit block 4 is fixedly connected to the table 1 through the connecting member 41. The connecting member 41 is a strip structure, and its length extends along the front-to-back direction. Through the above-mentioned structural design, the two ends of the pedal weldment (i.e., the two ends of the reinforcing rib 8) are respectively placed under the limit block 4. When the pedal weldment is pushed upward, it is blocked by the limit block 4 and the pedal weldment will not continue to move upward. In addition, by reasonably designing the distance between the connecting members 41 on both sides, the distance is made slightly larger than the length between the two ends of the reinforcing rib 8, so that the pedal weldment can be limited from the left and right directions.

[0037] A heightening strip 6 is installed between the side limit assemblies on both sides of the table 1. The length of the heightening strip 6 extends in the front-to-back direction. Multiple groups of heightening strips 6 can be arranged on the table 1 according to actual needs. The pedal weldment is placed on the heightening strip 6. The function of the heightening strip 6 is to raise the placement position of the pedal weldment on the table 1 to facilitate the operator to place the pedal weldment to be shaped on the table 1 by hand. In the specific design, the height of the heightening strip 6 is not higher than the height of the limit block 4.

[0038] In addition, a rear end stopper assembly 5 is installed on the platform 1 for limiting the movement of the pedal welding part toward the rear side of the platform 1. The rear end stopper assembly 5 is a block structure, which blocks the pedal welding part from moving toward the rear side of the platform 1, thereby achieving the positioning of the pedal welding part.

[0039] like Figure 8 As shown, during the specific operation, the pedal welded parts welded on the automatic welding machine are placed on the padding strip 6. The two ends of the pedal welded parts enter under the limit block 4, and the pedal welded parts are pushed backward so that they are against the rear end limit assembly 5, and at the same time, the middle welding position of the reinforcing rib 8 is just below the shaping vertical plate 2. After that, the air valve is turned to drive the actuator 3 to work, the push plate 31, and the three shaping vertical plates 2 to move upward together, so that the tops of the three shaping vertical plates 2 abut against the middle position of the reinforcing rib 8 and push the pedal welded parts upward. Limited by the limit block 4, the pedal welded parts stop moving after being lifted to a certain height. At this position, the shaping vertical plate 2 applies pressure to the middle position of the reinforcing rib 8 to integrate the deformed position of the reinforcing rib 8 into a plane. The pressure applied by the shaping vertical plate 2 is adjusted by adjusting the compression amount of the spring 72. .

[0040] In this embodiment, pressure is applied to the middle welding position of the reinforcing rib 8 to achieve the shaping operation of the welding position between the middle position of the reinforcing rib 8 and the pedal surface 81. The side limit assembly and the shaping vertical plate 2 cooperate to achieve the shaping operation of the pedal welded part. The pressure applied to the middle welding position of the reinforcing rib 8 can be adjusted to meet the shaping operation requirements of different deformation degrees of the pedal welded part.

[0041] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A pedal welding part shaping tool, comprising a table, a shaping vertical plate, a driving assembly and a side limit assembly; characterized in that: The table is used to place pedal welding parts; at least one set of avoidance holes is provided on the table; The shaping upright plate is movably arranged in the avoidance hole; the top surface of the shaping upright plate is an arc-shaped surface convex upward; The driving assembly is used to drive the shaping vertical plate to move up and down; The side limit assembly is arranged on the table and is located on the left and right sides of the avoidance hole; the side limit assembly cooperates with the two ends of the pedal welding part to limit the displacement of the pedal welding part in the vertical direction; The driving assembly includes a push plate and an actuator; the push plate is arranged below the table; the shaping vertical plate is connected to the push plate; the actuator is connected to the push plate and is used to drive the push plate to move up and down; An adjustment assembly is provided between the push plate and the table; the adjustment assembly includes a screw, a nut and a spring; the screw is arranged vertically and is threadedly connected to the push plate; the screw has an abutting end for abutting against the table; the nut is threadedly connected to the screw for locking the screw on the push plate; the spring is distributed between the table and the push plate; the upper end of the spring is connected to the table, and the lower end is connected to the push plate; The side limit assembly includes a limit block and a connecting piece; the limit block is arranged above the table top and has a set distance between it and the table top; the limit block has a first end close to the avoidance hole and a second end away from the avoidance hole; the second end of the limit block is fixedly connected to the table top through the connecting piece.

2. The pedal welding part shaping tool according to claim 1, characterized in that: The shaping vertical plate is arranged in the avoidance hole in a clearance-fitting manner.

3. The pedal welding part shaping tool according to claim 1, characterized in that: A padding strip is provided between the side limit assemblies on both sides of the platform; and the pedal welding part is placed on the padding strip.

4. The pedal welding part shaping tool according to claim 1, characterized in that: The platform is provided with a rear end limit assembly for limiting the pedal welding part from moving toward the rear side of the platform.

Images