A subway car windshield processing tool and method

Abstract

The present invention discloses a subway car windshield processing tool, comprising a base, characterized in that a milling station, a first mounting hole processing station, a first mounting groove processing station, a second mounting hole processing station, an air avoidance space processing station, a second mounting groove processing station and a third mounting hole processing station are sequentially arranged on the base, a vacuum adsorption device is arranged on the milling station, the first mounting hole processing station comprises a first supporting mechanism and a self-clamping device installed on the first supporting mechanism, the second mounting groove processing station comprises a second supporting mechanism and a clamping mechanism, the second supporting mechanism comprises a bracket, an anti-vibration device is arranged on the bracket, the difference between the second mounting groove processing station and the third mounting hole processing station is that the third mounting hole processing station is provided with an overflow device, the problems of low production efficiency, low qualified rate and unstable quality of windshield processing are solved, and a subway track windshield processing method is also provided.

Description

Technical Field

[0001] The invention belongs to the field of rail transit vehicle component processing, and in particular relates to a subway carriage windshield processing tool and method. Background Art

[0002] In recent years, the rail transit industry has grown rapidly, and the demand has increased. Correspondingly, the supply of components required for rail transit has also increased. The supply of interior windshields for rail transit has also increased, and higher requirements have been placed on supply speed and quality.

[0003] In order to avoid discomfort to passengers sitting next to the doors due to air convection when opening and closing the doors, a windshield is installed on one end of the seats next to the doors of subway vehicles. A connecting component, namely a windshield, needs to be provided between the seats, the windshield and the vehicle body. At the same time, a handrail is installed at one end of the windshield, and the upper end of the handrail is connected to the roof frame.

[0004] There is currently no tooling or continuous process for processing windshields on subway rail transit vehicles. Traditional casting processing still requires polishing of each surface after casting, which has a complicated process, a low pass rate, and poor quality consistency. The existing technology also uses manual positioning and then uses a milling cutter to mill out the corresponding structure. Whether it is manual operation or casting processing, the production efficiency is low, and it is not easy to control locally, resulting in increased production costs.

[0005] In view of this, this patent application is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a subway car windshield processing tooling to solve the problems of low production efficiency, low pass rate and unstable quality in the windshield processing process. Another purpose of the present invention is a subway car windshield processing method.

[0007] To solve the above problems, the technical solution adopted by the present invention is: a subway track windshield processing tool, including a base, on which a milling station, a first mounting hole processing station, a first mounting groove processing station, a second mounting hole processing station, an air avoidance space processing station, a second mounting groove processing station and a third mounting hole processing station are sequentially arranged, and a vacuum adsorption device is arranged on the milling station, the first mounting hole processing station includes a first supporting mechanism and a self-clamping device installed on the first supporting mechanism, the second mounting groove processing station includes a second supporting mechanism and a clamping mechanism, the second supporting mechanism includes a bracket, and an anti-vibration device is arranged on the bracket, and the difference between the second mounting groove processing station and the third mounting hole processing station is that an overflow device is arranged on the third mounting hole processing station.

[0008] The milling station includes a first base plate and a plurality of vertical clamping mechanisms and a plurality of horizontal clamping mechanisms arranged on the base plate. The horizontal clamping mechanism includes a rotating cylinder and a support platform arranged on one side of the rotating cylinder. A rotating arm is arranged on the rotating cylinder, and the rotating cylinder is connected to the center of the rotating arm.

[0009] The first mounting hole processing station includes a second bottom plate, a positioning groove is set on the bottom plate, positioning protrusions are set at both ends of the positioning groove, a triangular support plate is set on one side of the groove, and a tightening cylinder is set on the other side. A buffer mechanism is set between the cylinder tightening mechanism and the product to prevent the cylinder tightening mechanism from causing damage to the product

[0010] The self-clamping device includes a clamping protrusion and a clamping return frame arranged at the end of the triangular support plate. The clamping return frame and the clamping protrusion are arranged in coordination with each other. The vertical matching surface of the clamping return frame and the triangular support plate is inclined at an angle of 91°. The product is clamped during the downward pressing process of the clamping return block.

[0011] The installation groove processing station, the second installation hole processing station and the air avoidance space processing station all include a vise and positioning base plates arranged on both sides of the vise.

[0012] The bracket includes a limit frame and a clamping frame, the limit frame and the clamping frame are grouped in pairs, two second positioning base plates and a U-shaped clamping frame are arranged between the limit frame and the clamping frame, and the anti-vibration device includes a V-shaped groove and a V-shaped block arranged on the clamping frame.

[0013] The overflow device comprises a positioning protrusion, which is arranged on one of the positioning base plates. The positioning base plate on which the positioning protrusion is arranged is provided with an overflow hole, and the positioning protrusion is connected to the overflow hole by a through hole.

[0014] A method for processing a subway track windshield comprises the following steps:

[0015] (1) The aluminum blank is placed on the milling station, and the aluminum blank is positioned and clamped by the vertical clamping mechanism and the horizontal clamping mechanism on the milling station, and then the various surfaces of the aluminum blank are milled flat by the milling cutter to facilitate subsequent processing and positioning. At the same time, the handrail mounting part is processed from the aluminum blank by the milling cutter, and the clamping position is automatically switched as the processing position changes during the processing, so as to ensure the stability of the product during the processing, and at the same time avoid interference and collision between the clamping mechanism and the processing tool;

[0016] (2) The aluminum blank processed in step (1) is transferred to the first mounting hole processing station, positioned and clamped by the first mounting hole processing station, and locked by a self-clamping device to process a first mounting hole connected to the side wall panel;

[0017] (3) The aluminum blank processed in step (2) is sequentially transferred to the mounting groove processing station, the second mounting hole processing station and the air avoidance space processing station to process the mounting groove for the windshield glass, the second mounting hole for the seat and the air avoidance space, wherein the air avoidance space is used to reduce weight and is the space required for parts during installation, thereby preparing a prototype of the windshield;

[0018] (4) The windshield prototype processed in step (3) is transferred to the second installation groove processing station, the windshield prototype is placed on the second positioning base plate between the brackets, the windshield prototype is clamped and positioned by the limit frame and the clamping frame, and then the second installation groove for installing the handrail is milled out by a milling cutter;

[0019] (5) The windshield prototype processed in step (4) is transferred to the second mounting groove processing station. The positioning method is the same as that in step (4). The difference is that the second mounting groove processed in step (4) is clamped on the positioning protrusion. The purpose of this step is to process the third mounting hole for installing the handrail in the second mounting groove and to ensure that the hole processed in the previous process is coaxial with the hole processed in this process. After processing, the windshield is obtained.

[0020] The cutting chips processed in the step (5) flow out through the through holes and overflow holes of the positioning protrusion and the positioning base plate, thereby preventing blockage that affects the processing accuracy and avoiding tool breakage caused by chip accumulation.

[0021] The beneficial effects of the present invention are:

[0022] 1. The present invention discloses a processing tool for a subway car windshield, which includes seven consecutive workstations, and continuously processes from aluminum blanks to forming. Each workstation is provided with a dedicated tool for the part to be processed, so as to achieve accurate positioning of the product, aiming to improve the processing and manufacturing efficiency and processing quality of the windshield. The design of each workstation satisfies the needs of product fixing, clamping and accurate positioning, greatly saves manual operation time, improves the effective utilization rate of processing equipment, and ensures the consistency of processing efficiency and quality of each component.

[0023] 2. The present invention provides a subway car windshield processing tool. The milling station is provided with a vacuum adsorption device, a horizontal clamping mechanism and a vertical clamping mechanism. The clamping function is exerted through the alternating transformation of the horizontal clamping cylinder and the vertical clamping mechanism to accurately position the aluminum blank. Together with the vacuum adsorption device, the firmness and flexibility during the processing are ensured, and the automatic switching of the pressing-relaxing-processing links is realized, thereby improving the processing efficiency while ensuring the processing quality.

[0024] 3. The present invention provides a subway car windshield processing tool, in which a positioning groove is provided on the first bottom plate of the first mounting hole processing station, and the workpiece to be processed is placed on the positioning groove, and the bottom end of the product is clamped by a triangular support plate and a tightening cylinder. At the same time, the upper end of the triangular support plate clamps the upper end of the workpiece to be processed by a self-clamping device to avoid movement during the processing, and further avoid the upper end of the workpiece from being offset during the locking process due to unidirectional force.

[0025] 4. The clamping frame of the present invention is provided with a V-shaped groove to ensure that the clamping frame has a certain elasticity. When the clamping cylinder drives the upper U-shaped clamping frame to clamp, the clamping protrusion on the clamping frame can be ensured to be in close contact with the windshield plate to play a clamping role.

[0026] 5. The present invention provides a subway car windshield processing tooling, in which a V-shaped anti-vibration block is arranged on one side of the clamping frame. When cutting the mounting hole, it plays a buffering role for the clamping frame, and further plays an anti-vibration role, thereby ensuring the stability of the workpiece to be processed during processing.

[0027] 6. An overflow device is arranged on the third mounting hole processing station of the present invention, and the overflow device includes a second positioning protrusion, and the second positioning protrusion is integrally formed with the positioning base plate. A through hole is arranged in the positioning protrusion and the positioning base plate, and an overflow hole is arranged on one side of the positioning base plate. The through hole is communicated with the overflow hole. The second positioning protrusion positions the processed mounting hole. When cutting, a large amount of cutting debris is generated. The cutting debris enters the through hole along the upper end of the second positioning protrusion, and further flows out along the overflow hole to prevent the hole from being too deep. The debris generated during the processing cannot be discharged at the upper end of the hole, causing blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the milling station structure;

[0030] Figure 3 This is a structural diagram of the first mounting hole processing station;

[0031] Figure 4 This is a structural diagram of the first mounting groove processing station;

[0032] Figure 5 It is a structural schematic diagram of the second installation groove processing station;

[0033] Figure 6 yes Figure 5 A is a schematic diagram of the enlarged structure of the middle part;

[0034] Figure 7 This is a structural diagram of the third mounting hole processing station.

[0035] in:

[0036] 1-Milling station, 101-First base plate, 102-Horizontal clamping mechanism, 103-Vertical clamping mechanism, 131-Rotating cylinder, 132-Supporting platform, 133-Rotating arm, 104-Vacuum adsorption hole, 2-First mounting hole processing station, 201-Tightening cylinder, 202-Self-tightening device, 221-Tightening protrusion, 222-Tightening return frame, 203-Second base plate, 231-Location groove, 232-First positioning protrusion, 204-Triangular support plate, 3-First mounting groove processing station, 301-Pen vise, 302-Second base plate, 303-Location block, 304-Moveable block, 4-Second mounting hole processing station , 5-avoiding space processing station, 6-second mounting groove processing station, 601-support mechanism, 611-limiting frame, 612-clamping frame, 602-clamping mechanism, 621-U-type clamping block, 622-clamping cylinder, 603-positioning base plate, 604-anti-vibration device, 641-V-type groove, 642-V-type anti-vibration block, 7-third mounting hole processing station, 8-base, 9-overflow device, 901-second positioning protrusion, 902-overflow hole, 903-through hole, 10-first mounting hole, 11-first mounting groove, 12-second mounting hole, 13-avoiding space, 14-second mounting groove, 15-third mounting hole. DETAILED DESCRIPTION

[0037] In order to clearly illustrate the technical features of this solution, this solution is described below through specific implementation methods and in conjunction with the accompanying drawings.

[0038] As shown in 1-7, a subway car windshield processing tool includes a base 8, characterized in that a milling station 1, a first mounting hole processing station 2, a first mounting groove processing station 3, a second mounting hole processing station 4, an air avoidance space processing station 5, a second mounting groove processing station 6 and a third mounting hole processing station 7 are sequentially arranged on the base.

[0039] Specifically, the aluminum blank for the windshield is placed in the milling station 1. After being milled at the milling station 1, it is sequentially processed through the first mounting hole processing station 2, the first mounting groove processing station 3, the second mounting hole processing station 4, the air avoidance space processing station 5, the second mounting groove processing station 6 and the second mounting groove processing station 7 to obtain bolt holes and the first mounting holes for side wall panel installation, the first mounting groove for windshield installation, the second mounting hole for seat installation, the air avoidance space, the second mounting groove for armrest installation and the third mounting hole located in the second mounting groove.

[0040] The milling station 1 is provided with a vacuum adsorption device, which includes a first base plate 101 and a plurality of horizontal clamping mechanisms 102 and a plurality of vertical clamping mechanisms 103 arranged on the first base plate 101. The vacuum adsorption device includes a plurality of vacuum adsorption holes 104 arranged on the first base plate 101; the vertical clamping mechanism 103 includes a rotating cylinder 131 and a support platform 132 arranged on one side of the rotating cylinder 131, a rotating arm 133 is arranged on the rotating cylinder 131, and the rotating cylinder 131 is connected to the center of the rotating arm 132. When in use, the support platform 132 and the aluminum billet are separated on both sides of the rotating cylinder 131. When the vertical clamping mechanism 103 is used to clamp the aluminum billet, one end of the rotating arm 132 clamps the aluminum billet, and the other end is placed on the support platform to ensure the stability of the rotating arm 133 and further ensure the clamping degree of the aluminum billet.

[0041] Specifically, the aluminum billet is placed on the first bottom plate 101. Since the first bottom plate 101 is provided with a plurality of vacuum adsorption holes, the stability of the aluminum billet during processing can be ensured through the vacuum adsorption holes. The horizontal clamping mechanism 103 and the vertical clamping mechanism 102 work alternately to ensure the stability of the aluminum billet when milling different parts of the aluminum billet.

[0042] The first mounting hole processing station 2 includes a first supporting mechanism and a self-clamping device 202 installed on the first supporting mechanism. The first supporting mechanism includes a second bottom plate 203. A positioning groove 231 is provided on the bottom plate 203. First positioning protrusions 232 are provided at both ends of the positioning groove 231. A triangular supporting plate 204 is provided on one side of the groove 231, and a tightening cylinder 201 is provided on the other side. The self-clamping device 202 includes a clamping protrusion 221 and a clamping return frame 222 provided at the end of the triangular supporting plate 204. The clamping return frame 222 is provided in cooperation with the clamping protrusion 221.

[0043] Specifically, the windshield to be processed is placed vertically on the positioning groove 231, and the first positioning protrusion 232 plays the first positioning role for the windshield to be processed. The clamping protrusion 221 and the windshield to be processed are matched with zero clearance, and the tightening cylinder 201 clamps the windshield from one side of the bottom. At the same time, the self-clamping device 202 locks the windshield to be processed on the triangular support plate 204 to avoid the displacement of the workpiece to be processed during the processing.

[0044] The first installation groove processing station 3 includes a vise 301 and a second bottom plate 302 arranged on both sides of the vise 301. The vise 301 is provided with a movable block 304, and the second bottom plate is provided with a positioning block 303. The movable block of the vise 301 is used to fix the workpiece to be processed on the vise, and the positioning block 303 is used to achieve positioning, thereby further ensuring the stability of the workpiece to be processed. The purpose of this station is to process the installation groove of the windshield.

[0045] The second mounting hole processing station 4 and the empty space processing station 5 are similar in structure to the first mounting groove processing station 3. The model of the vise and the position of the positioning block are adjusted according to different processing purposes and the shape of the workpiece to be processed, which will not be described in detail here.

[0046] The second mounting groove processing station 6 includes a supporting mechanism 601 and a clamping mechanism 602. The second supporting mechanism 601 includes a bracket and a positioning base plate 603. A slot 631 is arranged on the positioning base plate 603. A clamping block 632 is arranged at the end of the slot 631. Observation windows 633 are formed between the clamping blocks 632 and between the clamping blocks 632 and the positioning base plate 603, so that the fit between the workpiece to be processed and the positioning base plate 603 can be observed at any time.

[0047] The bracket includes a limit frame 611 and a clamping frame 612, and the limit frame 611 and the clamping frame 612 are grouped in pairs. The clamping mechanism 602 includes a U-shaped clamping frame 621 and a clamping cylinder 622. The positioning base plate 603 is arranged between the limit frame 611 and the clamping frame 612. The U-shaped clamping frame 621 is arranged at the upper ends of the limit frame 611 and the clamping frame 612. The limit frame 611 and the clamping frame 612 are both provided with a mounting portion 623 and a mounting protrusion 624. The clamping cylinder 622 is installed on the mounting portion 623. The U-shaped clamping frame 621 is sleeved on the mounting protrusion 624 and can rotate along the mounting protrusion 624. Specifically, the clamping cylinder 622 drives the U-shaped clamping frame 621 to tighten the upper part of the workpiece to be processed through the U-shaped clamping frame 621.

[0048] An anti-vibration device 604 is arranged on the clamping frame 612, and the anti-vibration device 604 includes a V-shaped groove 641 and a V-shaped anti-vibration block 642 arranged on the clamping frame 612. The V-shaped groove 641 is arranged to ensure that the clamping frame 612 has a certain elastic margin, so as to ensure that when a U-shaped clamping frame is used, the clamping frame 612 and the limit frame 611 can clamp the workpiece to be processed. The V-shaped anti-vibration block 642 is arranged on the V-shaped groove 641 to prevent vibration during processing and increase the stability of processing.

[0049] The difference between the second mounting groove processing station 6 and the third mounting hole processing station 7 is that the third mounting hole processing station 7 is provided with an overflow device 9 .

[0050] The overflow device 9 includes a second positioning protrusion 901, which is arranged on one of the positioning bottom plates, and an overflow hole 902 is arranged on the positioning bottom plate on which the second positioning protrusion 901 is arranged, and the second positioning protrusion 901 and the overflow hole 902 are connected by a through hole 903. The cutting debris generated by the cutting process of the mounting hole flows into the through hole 903 from the end of the second positioning protrusion 901 and is discharged through the overflow hole 902, so as to prevent the cutting debris from accumulating, causing blockage and affecting the cutting process.

[0051] A method for processing a subway track windshield, characterized in that it comprises the following steps:

[0052] (1) The aluminum blank is placed on the milling station 1, and the aluminum blank is positioned and clamped by the vertical clamping mechanism 103 and the horizontal clamping mechanism 103 on the milling station 1, and then each surface of the aluminum blank is milled flat by a milling cutter to facilitate subsequent processing and positioning. At the same time, the aluminum blank is processed into a handrail mounting portion by the milling cutter;

[0053] (2) The aluminum blank processed in step (1) is transferred to the first mounting hole processing station 2, positioned and clamped by the first mounting hole processing station 2, and locked by the self-clamping device 202, so as to process the first mounting hole 10 connected to the side wall panel;

[0054] (3) The aluminum blank processed in step (2) is sequentially transferred to the first mounting groove processing station 3, the second mounting hole processing station 4 and the air-avoiding space processing station 5, and the first mounting groove 11 for mounting the windshield glass, the second mounting hole 12 for mounting the seat and the air-avoiding space 13 are processed, wherein the air-avoiding space 13 is used for weight reduction and as a space required for components during installation, and a prototype of the windshield is prepared;

[0055] (4) The windshield prototype processed in step (3) is transferred to the second installation groove processing station 6, and the windshield prototype is placed on the positioning base plate between the brackets. The windshield prototype is clamped and positioned by the limiting frame 611 and the clamping frame 612, and then the second installation groove 14 for installing the handrail is milled out by a milling cutter;

[0056] (5) The windshield prototype processed in step (4) is transferred to the second mounting groove processing station 7. The positioning method is the same as that in step (4). The difference is that the second mounting groove processed in step (4) is clamped on the positioning protrusion. The purpose of this step is to process the third mounting hole 15 for installing the handrail in the second mounting groove 14. After processing, the windshield is obtained.

[0057] The above description is only a preferred embodiment of the present invention. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A subway car windshield processing tool, including a base, characterized in that: The base is provided with a milling station, a first mounting hole processing station, a first mounting groove processing station, a second mounting hole processing station, an air avoidance space processing station, a second mounting groove processing station and a third mounting hole processing station in sequence, the milling station is provided with a vacuum adsorption device, the first mounting hole processing station includes a first supporting mechanism and a self-clamping device installed on the first supporting mechanism, the second mounting groove processing station includes a second supporting mechanism and a clamping mechanism, the second supporting mechanism includes a bracket, and an anti-vibration device is provided on the bracket, the difference between the second mounting groove processing station and the third mounting hole processing station is that the third mounting hole processing station is provided with an overflow device; The milling station includes a first base plate and a plurality of vertical clamping mechanisms and a plurality of horizontal clamping mechanisms arranged on the base plate, the vertical clamping mechanism includes a rotary cylinder and a support platform arranged on one side of the rotary cylinder, a rotary arm is arranged on the rotary cylinder, and the rotary cylinder is connected to the center of the rotary arm; The first mounting hole processing station comprises a second bottom plate, a positioning groove is arranged on the second bottom plate, first positioning protrusions are arranged at both ends of the positioning groove, a triangular support plate is arranged on one side of the positioning groove, and a tightening cylinder is arranged on the other side; The self-clamping device comprises a clamping protrusion and a clamping return frame arranged at the end of the triangular support plate, and the clamping return frame is arranged in cooperation with the clamping protrusion; The first mounting groove processing station, the second mounting hole processing station and the air avoidance space processing station all include a vise and a first positioning base plate arranged on both sides of the vise; The bracket includes a limit frame and a clamping frame, wherein the limit frame and the clamping frame are grouped in pairs, two second positioning base plates and a U-shaped clamping frame are arranged between the limit frame and the clamping frame, and the anti-vibration device includes a V-shaped groove and a V-shaped anti-vibration block arranged on the clamping frame; The overflow device comprises a second positioning protrusion, which is arranged on one of the positioning base plates. The positioning base plate on which the positioning protrusion is arranged is provided with an overflow hole, and the second positioning protrusion is connected to the overflow hole by a through hole.

2. A method for processing a subway track windshield, characterized in that: The use of a subway car windshield processing tool as claimed in claim 1 comprises the following steps: Place the aluminum blank on the milling station, position and clamp the aluminum blank through the vertical clamping mechanism and horizontal clamping mechanism on the milling station, and then use the milling cutter to mill each surface of the aluminum blank to facilitate subsequent processing and positioning. At the same time, use the milling cutter to process the handrail installation part of the aluminum blank; Step (1) The processed aluminum blank is transferred to the first mounting hole processing station, positioned and clamped by the first mounting hole processing station, and locked by a self-clamping device to process a first mounting hole connected to the side wall panel; The aluminum blank processed in step (2) is sequentially transferred to the installation groove processing station, the second installation hole processing station and the air avoidance space processing station to process the installation groove for the windshield glass, the second installation hole for the seat and the air avoidance space, wherein the air avoidance space is used for weight reduction and as the space required for the components during installation, thereby preparing a prototype of the windshield; The windshield prototype processed in step (3) is transferred to the second installation groove processing station, the windshield prototype is placed on the second positioning base plate between the brackets, the windshield prototype is clamped and positioned by the limit frame and the clamping frame, and then the second installation groove for installing the handrail is milled out by a milling cutter; The windshield prototype processed in step (4) is transferred to the second mounting groove processing station. The positioning method is the same as that in step (4). The difference is that the second mounting groove processed in step (4) is clamped on the positioning protrusion. The purpose of this step is to process a third mounting hole for installing the handrail in the second mounting groove. After processing, the windshield is obtained.

3. A subway track windshield processing method as claimed in claim 2, characterized in that: The cutting fluid processed in step (5) flows out through the through hole and overflow hole of the second positioning protrusion and the positioning base plate to prevent blockage that affects the processing accuracy.

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