Precise punching device for gear shifting connecting rod of traction transformer

Abstract

The invention discloses a precise punching device for a gear shifting connecting rod of a traction transformer. A gear shifting connecting rod mounting device comprises a double-track sliding rail, a sliding block I, a sliding block II, a hoop I, a hoop II and a clamp tool which are fixed to a workbench. The clamp tool comprises a supporting plate, a multi-segment flange plate supporting plate, a flange plate front baffle and two flange plate rear baffles. The multi-segment flange plate supporting plate corresponds to the hoop I and the hoop II, and after the flange plate is arranged on the multi-segment flange plate supporting plate, the connecting rod of the flange plate is just located in the hoop I and the hoop II; the punching mechanism is fixed on a fixing seat of the sliding block I and comprises a base and an L-shaped drill bit supporting frame, a drill bit facing downwards is fixed at one end of the L-shaped drill bit supporting frame, and during punching, the drill bit directly faces the position, needing to be punched, of the gear shifting connecting rod; the calibration mechanism comprises a calibration supporting frame and a calibrator, and the calibrator is aligned with the drill bit during punching. The gear shifting connecting rod punching device can adapt to punching of gear shifting connecting rods with different lengths, punching position deviation is avoided, punching errors can be measured in real time, and then precise punching control is conducted.

Description

Technical Field

[0001] The invention belongs to the technical field of traction transformer shift-adjusting connecting rod manufacturing equipment, and in particular relates to a precision punching device for a traction transformer shift-adjusting connecting rod. Background Art

[0002] Traction transformers are very important power supply components in electrified railway transportation and have been widely used both at home and abroad. In order to meet the voltage stability requirements of power supply equipment, traction transformers often need to have a gear adjustment function. Through this function, the operator can operate the switch electric operating mechanism of the traction transformer according to the needs, control the position change of the round hole above the gear adjustment connecting rod, and then realize the gear adjustment of the traction transformer. Therefore, the accuracy of the position of the round hole above the gear adjustment connecting rod is the key to ensuring the voltage stability of the traction transformer.

[0003] The production of the circular hole on the shift connecting rod of the existing traction transformer adopts manual control punching. The position of the punching is determined by the position of the standard hole on the flange fixed at one end of the shift connecting rod. Since the shift connecting rod is long and has a large deadweight, multiple personnel need to cooperate with each other to complete the task during the punching process. One operator is required to support the flange at one end of the shift connecting rod to keep the flange perpendicular to the ground, another operator lifts the shift connecting rod to keep the shift connecting rod parallel to the ground, and the last operator uses a hand drill to perform the punching task at the connection between the flange and the shift connecting rod. During the processing, the position deviation caused by the punching vibration makes it impossible to guarantee the accuracy of the punching, and the accuracy of the circular hole position on the shift connecting rod is poor, which ultimately leads to the shifting accuracy of the traction transformer cannot meet the needs of industrial production. Therefore, it is particularly important to design a precision punching device for the shift connecting rod with high punching accuracy and real-time measurement of production errors. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned problems existing in the prior art and to provide a precision punching device for a traction transformer shift connecting rod. The precision punching device can adapt to the punching of shift connecting rods of different lengths, has a wide range of applications, and avoids the position deviation of the flange and the shift connecting rod caused by the punching vibration. The punching error can also be measured in real time to perform precision punching control, and the punching precision is high.

[0005] To achieve the above-mentioned purpose, the technical solution of the present invention is: a precision punching device for a traction transformer shift connecting rod, comprising a workbench, a punching mechanism, a shift connecting rod installation device and a calibration mechanism; the shift connecting rod installation device comprises a double-track slide fixed on the workbench, a slider I and a slider II slidably fixed on the double-track slide, a clamp I and a clamp II fixed at corresponding positions between sliders I and II, and a fixture; a fixing seat of the punching mechanism is fixed at the upper end of one end of slider I; the fixture comprises a support plate fixed on the workbench, a multi-segment flange support plate and a flange front baffle plate integral with the support plate, which can be rotatably Two flange rear baffles are fixed on the lower end of the multi-segment flange support plate; the multi-segment flange support plate corresponds to the clamp I and the clamp II, and after the flange of the shift-adjusting connecting rod is placed on the multi-segment flange support plate, its connecting rod is just located in the clamp I and the clamp II; the punching mechanism is fixed on the fixing seat of the slider I, which includes a base and an L-shaped drill support frame rotatably fixed on the base, and a downward drill bit is fixed at one end of the L-shaped drill support frame. When drilling, the drill bit is directly opposite to the position where the shift-adjusting connecting rod needs to be drilled; the calibration mechanism includes a calibration support frame fixed on the workbench and a calibrator fixed on the top of the calibration support frame. When drilling, the calibrator is aligned with the drill bit.

[0006] Further preferably, the double-track slide rails are two convex-shaped rails; the lower ends of the two ends of the slider I and the slider II have snap-on grooves that can be slidably and tightly assembled with the convex-shaped rails; the fixing seat of the punching mechanism is three or more bolts fixed to the upper end of one end of the slider I; the base of the punching mechanism is a mounting hole with matching bolts on the fixing seat of the punching mechanism; after the bolts are inserted into the mounting holes, they are locked and fixed by nuts. This structure is easy to disassemble, move and replace parts.

[0007] Further preferably, the L-shaped drill bit support frame of the punching mechanism includes a support shaft fixed on the base and an L-shaped sleeve shaft tightly fitted outside the support shaft and capable of sliding, the L-shaped sleeve shaft being sleeved outside the support shaft; a limiting groove along the length direction of the support shaft is opened on the support shaft; a fixing cylinder is fixed outside the L-shaped sleeve shaft, a limiting bolt is installed on the fixing cylinder, the limiting bolt is threadedly screwed on the fixing cylinder and top-connected in the limiting groove of the support shaft; a rotation controller of the drill bit is fixed to the upper end of the L-shaped sleeve shaft, and the rotation of the drill bit is controlled by a handle.

[0008] Further preferably, the supporting position of the multi-segment flange support plate is an arc-like supporting surface formed by an even number of line segments with different slopes, and two line segments symmetrically distributed perpendicular to the central axis of the arc-like supporting surface are symmetrically arranged with the same slope; the flange front baffle plate and the flange rear baffle plate are respectively distributed at the front and rear ends of the multi-segment flange support plate to clamp and fix the flange of the shifting connecting rod.

[0009] Further preferably, the calibrator of the calibration mechanism is a laser calibrator; and quick locks are provided on both the clamp I and the clamp II.

[0010] Beneficial effects of the present invention: The present invention can realize effective clamping and fixing of shifting rods of different lengths through the slider I, slider II, clamp I and clamp II of the shifting rod installation device; the flanges of different voltage levels can be limited through the fixture; the errors occurring during the punching process can be quickly determined in real time through the calibration mechanism. In summary, the present invention can effectively avoid the position deviation of the shifting rod caused by the vibration of punching through the shifting rod installation device, and can realize the refined real-time measurement and control of the error through the calibration mechanism, thereby improving the accuracy of the shifting rod punching, and can adapt to the punching of shifting rods of different lengths, with a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of the punching mechanism in the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the gear-adjusting connecting rod installation device after the clamp tooling is removed in the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the calibration mechanism in the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the fixture tooling in the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure after the clamp tooling in the present invention clamps the shift-adjusting connecting rod connecting plate. DETAILED DESCRIPTION

[0012] The present invention is further described below in conjunction with the accompanying drawings and specific implementations.

[0013] like Figures 1 to 6As shown, this embodiment includes a workbench 1, a punching mechanism 2, a shift-adjusting connecting rod installation device and a calibration mechanism 4. The workbench 1 is a horizontal workbench, and four supporting legs 11 are installed at the four corners of its lower end, and a ribbed plate 12 is fixed between the four supporting legs 11. The shift-adjusting connecting rod installation device includes a double-track slide 6 fixed on the workbench 1, a slider Ⅰ31 and a slider Ⅱ32 slidably fixed on the double-track slide 6, a clamp Ⅰ33 and a clamp Ⅱ34 fixed at corresponding positions between the slider Ⅰ31 and the slider Ⅱ32, and a fixture 5. Preferably, a quick lock is provided on the clamp Ⅰ33 and the clamp Ⅱ34. A fixing seat of the punching mechanism 2 is fixed at the upper end of one end of the slider Ⅰ31. The punching mechanism 2 is fixed on the fixed seat of the slider I 31, and includes a base 21 and an L-shaped drill support frame 22 rotatably fixed on the base 21. A drill 23 with a downward direction is fixed on one end of the L-shaped drill support frame 22. When punching, the drill 23 is directly opposite to the position where the shifting connecting rod 7 needs to be punched. Preferably, the double-track slide rail 6 is two convex-shaped tracks; the lower ends of both ends of the slider I 31 and the slider II 32 have a clamping groove that can be slidably and tightly assembled with the convex-shaped track. The fixed seat of the punching mechanism 2 is three (it can also be designed as needed) bolts 35 fixed to the upper end of one end of the slider I 31; the base 21 of the punching mechanism 2 is a mounting hole with matching bolts 35 on the fixed seat of the punching mechanism 2; after the bolts 35 are passed through the mounting holes, they are locked and fixed by nuts. The fixture 5 includes a support plate 51 fixed on the workbench 1, a multi-segment flange support plate 52 and a flange front baffle plate 53 integral with the support plate 51, and two flange rear baffle plates 54 rotatably fixed to the lower end of the multi-segment flange support plate 52 by screws 55. The multi-segment flange support plate 52 corresponds to the clamping hoop Ⅰ33 and the clamping hoop Ⅱ34. After the flange 71 of the shift-adjusting connecting rod 7 is placed on the multi-segment flange support plate 52, its connecting rod is just located in the clamping hoop Ⅰ33 and the clamping hoop Ⅱ34. Preferably, the support position of the multi-segment flange support plate 52 is an arc-shaped support surface formed by an even number of line segments with different slopes, and two line segments symmetrically distributed perpendicular to the central axis of the arc-shaped support surface are symmetrically arranged with the same slope; the flange front baffle plate 53 and the two flange rear baffle plates 54 are respectively distributed at the front and rear ends of the multi-segment flange support plate 52 to clamp and fix the flange 71 of the shift-adjusting connecting rod 7. The calibration mechanism 4 comprises a calibration support frame 41 fixed on the workbench 1 and a calibrator 42 fixed on the top of the calibration support frame 41. When drilling, the calibrator 42 is aligned with the drill bit 23. Preferably, the calibrator 42 of the calibration mechanism 4 is a laser calibrator.Preferably, the L-shaped drill bit support frame 22 of the punching mechanism includes a support shaft 221 fixed on the base 21 and an L-shaped sleeve shaft 222 that is tightly fitted outside the support shaft 221 and can slide, and the L-shaped sleeve shaft 222 is sleeved outside the support shaft 221; a limiting groove 224 along the length direction of the support shaft is opened on the support shaft 221; a fixing cylinder 25 is fixed outside the L-shaped sleeve shaft 222, and a limiting bolt 223 is installed on the fixing cylinder 25, and the limiting bolt 223 is threadedly screwed on the fixing cylinder 25 and top-connected in the limiting groove 224 of the support shaft 221; the rotation controller 24 of the drill bit 23 is fixed to the upper end of the L-shaped sleeve shaft 222, and the rotation of the drill bit 23 is controlled by a handle 241.

[0014] The working principle of this embodiment is as follows: the connecting rod of the shifting connecting rod 7 is placed in the clamps I33 and II34 of the slider I31 and the slider II32, and the distance between the slider I31 and the slider II32 is adjusted to adapt to the shifting connecting rods of different lengths. After adjustment, the connecting rod is fixed by the quick locks on the clamps I33 and II34. The flange of the shifting connecting rod is placed above the multi-segment adjustable clamp 5, and the multi-segment flange support plate 52 automatically adapts to flanges of different outer diameters and is clamped and fixed by the flange front baffle 53 and the two flange rear baffles 54. The laser projected by the calibrator 42 (in this embodiment, a laser calibrator) adjusts the position of the drill bit 23 of the punching mechanism and the circular hole on the flange; the shifting connecting rod is pushed into the flange by the sliding clamp module 3, and the drilling work is performed by the drilling machine 201 of the punching mechanism 2, during which the drilling error range in production can be determined by the laser projected by the laser calibration module 4.

[0015] Of course, the present invention has many other embodiments. Without violating the spirit and essence of the present invention, technicians familiar with the field can make corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should be regarded as improvements of equivalent technologies and belong to the protection scope of the claims of the present invention.

Claims

1. A precision punching device for a traction transformer shift connecting rod, characterized in that: The invention comprises a workbench, a punching mechanism, a shift-adjusting connecting rod installation device and a calibration mechanism; the shift-adjusting connecting rod installation device comprises a double-track slide rail fixed on the workbench, a slider I and a slider II slidably fixed on the double-track slide rail, a clamp I and a clamp II fixed at corresponding positions between the slider I and the slider II, and a fixture; a fixing seat of the punching mechanism is fixed at the upper end of one end of the slider I; the fixture comprises a support plate fixed on the workbench, a multi-segment flange support plate and a flange front baffle plate integrated with the support plate, and two flange rear baffle plates rotatably fixed at the lower end of the multi-segment flange support plate. Plate; the multi-segment flange support plate corresponds to the clamp I and the clamp II. After the flange of the shift connecting rod is placed on the multi-segment flange support plate, the connecting rod is just located in the clamp I and the clamp II; the punching mechanism is fixed on the fixing seat of the slider I, which includes a base and an L-shaped drill support frame rotatably fixed on the base, and a drill bit facing downward is fixed at one end of the L-shaped drill support frame. When drilling, the drill bit is directly opposite to the position where the shift connecting rod needs to be drilled; the calibration mechanism includes a calibration support frame fixed on the workbench and a calibrator fixed on the top of the calibration support frame. When drilling, the calibrator is aligned with the drill bit.

2. The precision punching device for the traction transformer shift connecting rod according to claim 1 is characterized in that: The double-track slide rails are two convex-shaped rails; the lower ends of both ends of the sliders I and II are provided with snap-in grooves that can be slidably and tightly assembled with the convex-shaped rails; the fixing seat of the punching mechanism is three or more bolts fixed to the upper end of one end of the slider I; the base of the punching mechanism is a mounting hole with matching bolts on the fixing seat of the punching mechanism; after the bolts are passed through the mounting holes, they are locked and fixed by nuts.

3. The precision punching device for the traction transformer shift connecting rod according to claim 1 or 2, characterized in that: The L-shaped drill support frame of the punching mechanism includes a support shaft fixed on the base and an L-shaped sleeve shaft tightly fitted outside the support shaft and capable of sliding, the L-shaped sleeve shaft is sleeved outside the support shaft; a limiting groove along the length direction of the support shaft is opened on the support shaft; a fixing cylinder is fixed outside the L-shaped sleeve shaft, and a limiting bolt is installed on the fixing cylinder, the limiting bolt is threadedly screwed on the fixing cylinder and top-connected in the limiting groove of the support shaft; a rotation controller of the drill bit is fixed on the upper end of the L-shaped sleeve shaft, and the rotation of the drill bit is controlled by a handle.

4. The precision punching device for the traction transformer shift connecting rod according to claim 3 is characterized in that: The supporting position of the multi-segment flange support plate is an arc-shaped supporting surface formed by an even number of line segments with different slopes, and is symmetrically arranged with two line segments symmetrically distributed perpendicular to the central axis of the arc-shaped supporting surface, with the same slope; the flange front baffle plate and the flange rear baffle plate are respectively distributed at the front and rear ends of the multi-segment flange support plate to clamp and fix the flange of the shifting connecting rod.

5. The precision punching device for the traction transformer shift connecting rod according to claim 4 is characterized in that: The calibrator of the calibration mechanism is a laser calibrator; both the clamp I and the clamp II are provided with quick locks.

6. The precision punching device for the traction transformer shift connecting rod according to claim 1 or 2, characterized in that: The supporting position of the multi-segment flange support plate is an arc-shaped supporting surface formed by an even number of line segments with different slopes, and is symmetrically arranged with two line segments symmetrically distributed perpendicular to the central axis of the arc-shaped supporting surface, with the same slope; the flange front baffle plate and the flange rear baffle plate are respectively distributed at the front and rear ends of the multi-segment flange support plate to clamp and fix the flange of the shifting connecting rod.

7. The precision punching device for the traction transformer shift connecting rod according to claim 6 is characterized in that: The calibrator of the calibration mechanism is a laser calibrator; both the clamp I and the clamp II are provided with quick locks.

8. The precision punching device for the traction transformer shift connecting rod according to claim 3 is characterized by: The calibrator of the calibration mechanism is a laser calibrator; both the clamp I and the clamp II are provided with quick locks.

9. The precision punching device for the traction transformer shift connecting rod according to claim 1 or 2, characterized in that: The calibrator of the calibration mechanism is a laser calibrator; both the clamp I and the clamp II are provided with quick locks.

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