Numerical control arc-shaped steel rail pressing tool

Abstract

The utility model discloses a numerical control arc-shaped steel rail pressing tool which comprises a controller and a working table, an oil cylinder and a supporting die are arranged on the working table, a rear baffle is installed on the supporting die, a touch switch is installed on the rear baffle, the touch switch is triggered and transmits electric signals to the controller, and the controller controls the oil cylinder to contract through a circuit. The supporting mold and the rear baffle are adjustably installed through a coarse adjusting structure. The coarse adjusting structure comprises clamping racks, the clamping racks are installed on the top of the supporting mold and the top of the workbench, and the rear baffle can be embedded into clamping grooves of the clamping racks to form limiting. According to the numerical control arc-shaped steel rail pressing tool, the steel rail is pressed through the oil cylinder, the pressing triggering touch switch is triggered and transmitted to the controller through an electric signal, the controller controls the oil cylinder to contract through a circuit, one-time pressing operation is completed, operation is easy and convenient, the bending degree and automatic improvement are controlled at low cost, the bending degree is controlled uniformly, and the improvement cost is low.

Description

Technical Field

[0001] The utility model relates to arc-shaped metal part processing equipment, in particular to a numerically controlled arc-shaped steel rail pressing tool. Background Art

[0002] Rails are the main components of railway tracks. Their function is to guide the wheels of locomotives and vehicles forward, bear the huge pressure of the wheels, and transfer it to the sleepers. The rails must provide the wheels with a continuous, smooth and least-resistance rolling surface. In electrified railways or automatic block sections, rails can also serve as track circuits.

[0003] With the development of society, various transportation equipment such as shuttle buses and rail cars have become common. In order to meet the needs of workshop routes, turns are set up and the rails need to be bent in a relatively curved shape. Pressing and bending rails is a conventional means of producing curved rails, but due to its low degree of automation and the difficulty in controlling the pressing curvature, it is difficult to adapt to modern production. For this reason, technical improvements are made to the existing curved rail pressing equipment to improve its degree of automation and the calibration of the pressing curvature control. Utility Model Content

[0004] The utility model aims to provide a numerically controlled arc rail pressing tool to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The CNC arc rail pressing tool comprises a controller and a workbench. A cylinder and a supporting mold are arranged on the workbench. A rear baffle is installed on the supporting mold. A touch switch is installed on the rear baffle. The touch switch is triggered and transmitted to the controller through an electrical signal. The controller controls the cylinder to retract through a circuit.

[0007] As a further solution of the utility model: the support mold and the rear baffle are adjustable by a coarse adjustment structure;

[0008] The coarse adjustment structure includes a card rack, and the top of the supporting mold and the top of the workbench are both equipped with card racks, and the rear baffle can be embedded in the card slot of the card rack to form a limit.

[0009] As a further solution of the utility model: a through groove is provided in the rear baffle, the supporting mold and the card rack pass through the through groove, the rear baffle is lifted out of the card rack's card groove, and is clamped into the card rack's card groove under the action of gravity.

[0010] As a further solution of the utility model: the rear baffle and the touch switch are adjustable by a fine adjustment structure;

[0011] The fine adjustment structure includes a switch box, a sleeve, a sliding shaft and a screw rod. The touch switch is installed in the switch box. A switch slot is opened on the rear baffle. The switch box can slide horizontally in the switch slot. At least two sliding shafts are installed on the rear baffle. The switch box is provided with a sleeve that can slide on the outside of the sliding shaft. A nut is fixed between the two sliding shafts. The switch box is rotatably installed with a screw rod threadedly connected to the nut through a bearing.

[0012] As a further solution of the utility model: the position of the touch switch and the moving stroke of the oil cylinder are on the same axis.

[0013] As a further solution of the utility model: a push-back device located below the rear baffle is installed on the top of the workbench;

[0014] The push-back device includes a limit seat, a stroke shaft, a spring, a slide tube and a push plate. Two parallel stroke shafts are installed on the top of the workbench through the limit seat, a slidable slide tube is installed on the outside of the stroke shaft, a push plate is installed between the two slide tubes, and a spring is installed on the outside of the stroke shaft between the limit seat and the slide tube.

[0015] As a further solution of the utility model: rollers supporting the rails are installed on the top of the workbench.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The CNC arc rail pressing tool presses the rail through the oil cylinder. The pressing trigger touch switch triggers the transmission of electrical signals to the controller. The controller controls the cylinder to contract through the circuit to complete a pressing operation. The operation is simple and convenient, and the bending degree and automation improvement are controlled at low cost. The bending degree control is unified and the transformation cost is low.

[0018] 2. The CNC arc rail pressing tooling can quickly adjust the trigger distance of the touch switch through the coarse adjustment structure, control the pressing stroke, and realize pressing operations with different arcs. Although the coarse adjustment structure is convenient to adjust, its accuracy is insufficient. Therefore, a fine adjustment structure is set for precise adjustment.

[0019] 3. When the CNC arc rail pressing tool is used to press the segmented rails, the curvature of the rails bends into the supporting mold, causing the supporting mold to block the movement of the rails during material cutting. For this purpose, a push-back device is provided to push the rails out of the supporting mold when the cylinder retracts. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a CNC arc rail pressing tool;

[0021] Figure 2 This is a right view of the structure of a CNC curved rail pressing tool;

[0022] Figure 3 It is a structural schematic diagram of a coarse adjustment structure in a CNC arc rail pressing tool;

[0023] Figure 4 The figure is a schematic diagram of the structure of a push-back device in a CNC arc rail pressing tool.

[0024] In the figure: 1. workbench; 2. oil cylinder; 3. supporting mold; 4. rack; 5. rear baffle; 6. touch switch; 7. fine adjustment structure; 701. switch box; 702. sleeve; 703. slide shaft; 704. screw rod; 8. push back device; 801. limit seat; 802. travel shaft; 803. spring; 804. slide tube; 805. push plate; 9. roller. DETAILED DESCRIPTION

[0025] See also Figures 1 to 4 In the embodiment of the utility model, the arc-controlled rail pressing tooling includes a controller and a workbench 1, an oil cylinder 2 and a supporting mold 3 are arranged on the workbench 1, a rear baffle 5 is installed on the supporting mold 3, and a touch switch 6 is installed on the rear baffle 5. The touch switch 6 is triggered and transmitted to the controller through an electrical signal, and the controller controls the oil cylinder 2 to contract through a circuit. The controller and the touch switch 6 are prior art and are not described in detail here. The present application pushes the top mold through the oil cylinder 2 so that the top mold and the supporting mold 3 clamp the rail, the supporting mold 3 supports both ends of the rail, and the top mold contacts the middle of the rail. Under the continuous pressure of the oil cylinder 2, the top mold bends the rail into an arc. After the rail is bent and touches the touch switch 6, the touch switch 6 is triggered and transmitted to the controller through an electrical signal. The controller controls the oil cylinder 2 to contract through the circuit to complete a pressing operation. The operation is simple and convenient, and its bending degree and automation improvement are controlled at low cost, the bending degree control is unified, and the transformation cost is low.

[0026] In a preferred embodiment, the supporting mold 3 and the rear baffle 5 are adjustably mounted via a coarse adjustment structure;

[0027] The coarse adjustment structure includes a card rack 4. The card rack 4 is installed on the top of the supporting mold 3 and the top of the workbench 1. The rear baffle 5 can be embedded in the card slot of the card rack 4 to form a limit. For processing rails with different curvatures, the pressing stroke is different. For this purpose, a coarse adjustment structure is set. The rear baffle 5 is embedded in the card slot of the card rack 4 at different distances, so that the distance between the rail and the rear baffle 5 becomes longer, and the stroke length of the pressing drive will also become longer, so that rails with larger curvatures can be pressed, thereby achieving the purpose of controlling the curvature of the pressed rails.

[0028] In a preferred embodiment, a through groove is opened in the rear baffle 5, and the supporting mold 3 and the card rack 4 pass through the through groove. The rear baffle 5 is lifted up to disengage from the card rack 4's card slot, and is snapped into the card rack 4's card slot under the action of gravity. The distance adjustment of the rear baffle 5 needs to keep the rear baffle 5 vertical to avoid tilting to cause collision or trigger obstacles.

[0029] In a preferred embodiment, the tailgate 5 and the touch switch 6 are adjustably mounted via a fine adjustment structure 7;

[0030] The fine adjustment structure 7 includes a switch box 701, a sleeve 702, a sliding shaft 703 and a screw rod 704. The touch switch 6 is installed in the switch box 701. A switch slot is opened on the rear baffle 5. The switch box 701 can slide horizontally in the switch slot. At least two sliding shafts 703 are installed on the rear baffle 5. The switch box 701 is provided with a sleeve 702 that can slide on the outside of the sliding shaft 703. A nut is fixed between the two sliding shafts 703. The switch box 701 is rotatably installed with a screw rod 704 threadedly connected to the nut through a bearing. The position of the touch switch 6 and the moving stroke of the cylinder 2 are on the same axis. The adjustment distance of the coarse adjustment structure is limited by the distance of the card slot, and the minimum adjustment interval is more than 3 cm. As a result, it is impossible to finely control the adjustment distance. For this reason, a fine adjustment structure 7 is provided. The fine adjustment structure 7 enables the switch box 701 to move horizontally through the rotation of the screw rod 704, thereby compensating for the error of the card slot distance adjustment and realizing fine adjustment control.

[0031] In a preferred embodiment, a push-back device 8 located below the rear baffle 5 is installed on the top of the workbench 1;

[0032] The push-back device 8 includes a limit seat 801, a travel shaft 802, a spring 803, a slide tube 804 and a push plate 805. Two travel shafts 802 parallel to each other are installed on the top of the workbench 1 through the limit seat 801. A slidable slide tube 804 is installed on the outer side of the travel shaft 802. A push plate 805 is installed between the two slide tubes 804. A spring 803 located between the limit seat 801 and the slide tube 804 is installed on the outer side of the travel shaft 802. A roller 9 supporting the rail is installed on the top of the workbench 1. When processing a single section of curved rail, the design of roller 9 is more convenient and labor-saving when unloading. However, when the rail is pressed into an arc shape, the arc surface is blocked by the supporting mold 3 during unloading, which makes unloading difficult. For this reason, a push-back device 8 is installed. During the pressing process, the rail compresses the spring 803. After the pressing is completed, the cylinder 2 contracts and the spring 803 rebounds, pushing the rail out of the blocking range of the supporting mold 3. The unloading of the roller 9 is smoother. The number of rollers 9 is multiple, which can be set according to the length of the rail to meet the transportation requirements of the rail.

[0033] It should be noted that the above embodiments all belong to the same utility model concept, and the description of each embodiment has its own focus. For matters that are not described in detail in some embodiments, reference can be made to the description in other embodiments.

[0034] The above-mentioned embodiments only express the implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A CNC arc rail pressing tool, comprising a controller and a workbench (1), wherein an oil cylinder (2) and a supporting mold (3) are arranged on the workbench (1), characterized in that: The supporting mold (3) is provided with a rear baffle (5), and a touch switch (6) is provided on the rear baffle (5). When the touch switch (6) is triggered, an electrical signal is transmitted to a controller, and the controller controls the oil cylinder (2) to retract through an electric circuit.

2. The CNC curved rail pressing tool according to claim 1, characterized in that: The support mold (3) and the rear baffle (5) are adjustably mounted via a coarse adjustment structure; The coarse adjustment structure comprises a rack (4), and the top of the supporting mold (3) and the top of the workbench (1) are both provided with the rack (4), and the rear baffle (5) can be embedded in the slot of the rack (4) to form a limit position.

3. The CNC curved rail pressing tool according to claim 2, characterized in that: The rear baffle (5) is provided with a through groove, and the supporting mold (3) and the clamping rack (4) pass through the through groove. The rear baffle (5) is lifted up to be separated from the clamping groove of the clamping rack (4), and is clamped into the clamping groove of the clamping rack (4) under the action of gravity.

4. The CNC curved rail pressing tool according to any one of claims 1 to 3, characterized in that: The rear baffle (5) and the touch switch (6) are adjustably mounted via a fine adjustment structure (7); The fine adjustment structure (7) comprises a switch box (701), a sleeve (702), a sliding shaft (703) and a screw rod (704); the touch switch (6) is installed in the switch box (701); a switch slot is provided on the rear baffle (5); the switch box (701) can slide horizontally in the switch slot; at least two sliding shafts (703) are installed on the rear baffle (5); the switch box (701) is provided with a sleeve (702) that can slide on the outside of the sliding shaft (703); a nut is fixed between the two sliding shafts (703); and the switch box (701) is rotatably installed with a screw rod (704) threadedly connected to the nut via a bearing.

5. The CNC curved rail pressing tool according to claim 1, characterized in that: The position of the touch switch (6) and the moving stroke of the oil cylinder (2) are located on the same axis.

6. The CNC curved rail pressing tool according to claim 1, characterized in that: A push-back device (8) located below the rear baffle (5) is installed on the top of the workbench (1); The push-back device (8) comprises a limit seat (801), a travel shaft (802), a spring (803), a slide tube (804) and a push plate (805); two travel shafts (802) parallel to each other are installed on the top of the workbench (1) through the limit seat (801); a slidable slide tube (804) is installed on the outside of the travel shaft (802); a push plate (805) is installed between the two slide tubes (804); and a spring (803) located between the limit seat (801) and the slide tube (804) is installed on the outside of the travel shaft (802).

7. The CNC curved rail pressing tool according to claim 1, characterized in that: Rollers (9) for supporting rails are installed on the top of the workbench (1).

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