Railway vehicle metal door frame assembling device and using method thereof

Abstract

The invention discloses a railway vehicle metal door frame assembling device and a using method thereof, and relates to the technical field of railway vehicle assembling. The track mechanism is used for driving the assembly table to move, and the moving direction of the assembly table corresponds to and is perpendicular to the mounting position of the vehicle body door; a rotation control mechanism used for adjusting the placing angle of the door frame on the assembling table is arranged on the assembling table; when the door frame is turned over by 180 degrees through the rotation control mechanism, the position of the door frame placed on the assembly table before and after turning over is not changed. By arranging the rotating control mechanism, when the door frame is overturned forwards and backwards, the position of the door frame placed on the assembly table before and after overturning is not changed, the clamp for positioning and clamping the front face of the door frame can still directly position and clamp the back face of the door frame, at the moment, no clamp needs to be additionally arranged or the position of the clamp needs to be adjusted, and positioning and clamping convenience is improved; and the door frame assembling efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of rail vehicle assembly, and in particular to a rail vehicle metal door frame assembly device and a use method thereof. Background Art

[0002] Metal doors are important components used to separate the interior and exterior spaces of rail vehicles, ensuring the safety and comfort of passengers and cargo. Metal door frames of rail vehicles are key metal structures that support and fix the doors.

[0003] In the prior art, when assembling a metal door frame, it is necessary to first combine the door frame, door panel, glass and its accessories into a whole. Since the door frame of a rail vehicle is heavy and large in size, it is usually installed in alignment with the vehicle body using a lifting device, and then the position is precisely adjusted.

[0004] However, the following problems still exist in the process of assembling the above-mentioned rail vehicle door frame:

[0005] (1) During the door frame assembly process, the door frame is generally positioned on the assembly table. After one side is assembled, the door frame needs to be flipped over to assemble the other side. This assembly method is relatively cumbersome and usually requires lifting equipment to assist in flipping. To ensure that the door frame is not damaged, multiple people are required to slowly flip the door frame, which affects the assembly effect.

[0006] (2) When the door frame is installed on the vehicle body and precise adjustments are made, the process becomes particularly complicated and labor-intensive due to the high weight and large volume of the door frame. For example, when the parts connecting the side of the door frame to the vehicle body are misaligned and the door frame needs to be adjusted, the use of a hoisting method can easily cause the door frame to shake, making it difficult to achieve precise control, thus affecting the fine adjustment of the door frame position. Summary of the invention

[0007] In order to overcome the above-mentioned technical problems, the purpose of the present invention is to provide a rail vehicle metal door frame assembly device and a method of using the same, so as to solve the problems proposed in the above-mentioned background technology of using lifting equipment to assemble and install rail vehicle metal door frames, which have the disadvantages of complicated operation, low assembly efficiency and difficulty in adjusting the door frame position.

[0008] The purpose of the present invention can be achieved through the following technical solutions:

[0009] A rail vehicle metal door frame assembly device comprises an assembly table with a track mechanism; the track mechanism is used to drive the assembly table to move, and the moving direction of the assembly table corresponds to and is perpendicular to the installation position of the vehicle body door; the assembly table is provided with a rotation control mechanism for adjusting the placement angle of the door frame on the assembly table; when the rotation control mechanism flips the door frame 180 degrees, the position of the door frame placed on the assembly table before and after the flip remains unchanged;

[0010] A clamp is arranged on the assembly table; the clamp is used to position and clamp the door frame placed on the assembly table on the front or back side.

[0011] Preferably, the rotation control mechanism includes a rotating mechanism, a positioning mechanism and a lifting mechanism; the lifting mechanism is installed on the assembly table, and the output end of the lifting mechanism is connected to the rotating mechanism; the lifting mechanism is used to drive the rotating mechanism to lift and lower; the positioning mechanism is arranged on the rotating mechanism, and the positioning mechanism is used to fix the door frame to the rotating mechanism; the rotating mechanism is used to drive the door frame to rotate to adapt to assembly methods at different angles.

[0012] Preferably, the rotating mechanism includes a first driving mechanism and a guiding mechanism; the first driving mechanism is arranged above the assembly table, and the guiding mechanism is installed on the first driving mechanism; the first driving mechanism is used to drive the door frame to rotate, and the guiding mechanism is used to provide guidance for the rotation of the first driving mechanism, so that the door frame slides during the rotation process, thereby making the front and back sides of the door frame placed in the same position on the assembly table.

[0013] Preferably, the first driving mechanism comprises a first motor, a chain, a second sprocket, a first mounting plate and a pair of first sprockets; a mounting frame is provided above the assembly table, the output end of the lifting mechanism is connected to the mounting frame, the first motor is installed on the mounting frame, the pair of first sprockets are rotatably connected to the mounting frame, the chain is tensioned on a pair of first sprockets, the second sprocket is provided on the mounting frame, the second sprocket is provided above the chain, and the second sprocket is meshed with the chain, and the first mounting plate is fixedly provided on the second sprocket; the positioning mechanism is installed on the first mounting plate;

[0014] A support plate is provided on the mounting frame; the support plate is used to provide support for the transmission of the chain.

[0015] Preferably, the guide mechanism includes a rotating rod, a connecting shaft and a slider; one end of the rotating rod is rotatably connected to the mounting frame via a pin, the other end of the rotating rod is rotatably connected to the first mounting plate via a pin, the connecting shaft is coaxially rotatably connected to the second sprocket, the slider is arranged on the connecting shaft, a slide groove parallel to the length direction of the chain is opened on the mounting frame, and the slider is slidably connected to the slide groove; when the chain drives the second sprocket to rotate, it drives the first mounting plate to rotate, and the first mounting plate drives the rotating rod to rotate, and through the rotation of the rotating rod, the first mounting plate is pulled to move, so as to drive the slider to slide in the slide groove.

[0016] Preferably, the positioning mechanism includes a suction cup, an air pump and a connecting pipe; the suction cup is arranged on the first mounting plate, the air pump is installed on the first mounting plate, and the air pump and the suction cup are connected through a connecting pipe.

[0017] Preferably, the lifting mechanism comprises a first hydraulic cylinder; the first hydraulic cylinder is installed on the assembly table, and the output end of the first hydraulic cylinder is connected to the mounting frame;

[0018] A guide shaft is arranged on the assembly table, and the mounting frame is slidably connected to the guide shaft, and the axis of the output shaft of the first hydraulic cylinder is arranged parallel to the axis of the guide shaft.

[0019] Preferably, the rotation control mechanism also includes a second driving mechanism; the second driving mechanism is used to drive the door frame and the vehicle body to move closer or farther away; the second driving mechanism includes a second hydraulic cylinder, a second mounting plate and a telescopic tube; the second hydraulic cylinder is mounted on the first mounting plate, the second mounting plate is fixed to the output end of the second hydraulic cylinder, the suction cup is mounted on the second mounting plate, and the connecting tube and the suction cup are connected through the telescopic tube.

[0020] Preferably, the rail vehicle metal door frame assembly device further comprises a door frame support mechanism disposed on the assembly table; the door frame support mechanism comprises a slide seat, a clamping block and a third driving mechanism; the slide seat is slidably connected to the assembly table, and the sliding direction of the slide seat is parallel to the sliding direction of the slider, the clamping block is rotatably connected to the slide seat through a pin shaft, and when the front or back side of the door frame is placed on the assembly table, the axis of the pin shaft on the clamping block coincides with the axis of the second sprocket; the third driving mechanism is installed on the assembly table, and the output end of the third driving mechanism is connected to the slide seat; the third driving mechanism is used to drive the slide seat to slide;

[0021] The third driving mechanism includes a second motor and a screw, the second motor is installed on the assembly table, the screw is rotatably connected to the assembly table, and the output end of the second motor is coaxially connected to the screw; the slide seat is threadedly sleeved on the screw; when the screw rotates, the screw is used to drive the slide seat to move along the axial direction of the screw.

[0022] A method for using a rail vehicle metal door frame assembly device comprises the following steps:

[0023] Step 1: Front assembly positioning: Place the front of the door frame on the assembly table and use the clamp to position and clamp the assembly table; then the staff will assemble the front of the door frame;

[0024] Step 2: Side assembly positioning: The door frame is driven to rotate to a suitable angle through the rotary control mechanism, and the door frame is auxiliary supported by the door frame support mechanism during the rotation of the rotary control mechanism; then the staff installs the corresponding parts on the side of the door frame;

[0025] Step 3: Rear side assembly positioning: The door frame is driven to continue rotating by the rotary control mechanism, so that the door frame is rotated to the reverse side and placed on the assembly table, and then the assembly table is positioned and clamped by the clamp; then the staff assembles the reverse side of the door frame;

[0026] Step 4: Assemble and position the door frame and the vehicle body: drive the door frame to rotate in the opposite direction through the rotation control mechanism so that the door frame is in a vertical state, and then drive the assembly table to approach the vehicle body through the track mechanism. When the assembly table cannot move any closer, the second drive mechanism drives the door frame to continue to approach the vehicle body so that the door frame and the vehicle body are assembled vertically.

[0027] Beneficial effects of the present invention:

[0028] 1. By setting a rotating control mechanism, when the door frame is turned over, the position of the door frame placed on the assembly table before and after the turning remains unchanged. The clamp used to position and clamp the front side of the door frame can still directly position and clamp the back side of the door frame. At this time, there is no need to set up another clamp or adjust the position of the clamp, which improves the convenience of positioning and clamping, thereby improving the efficiency of door frame assembly; the door frame can be positioned at a suitable angle through the rotating control mechanism, which is convenient for adapting to the installation height that the staff is accustomed to, and the door frame is installed on the side, which improves the comfort of the staff in assembling the door frame, thereby improving the convenience of assembly; the structural setting that the door frame remains unchanged before and after the turning is realized by the rotating control mechanism, which reduces the space occupation of the entire device and provides more space for other assembly processes in the rail vehicle assembly;

[0029] 2. By setting up a door frame support mechanism, when the rotary control mechanism drives the door frame to flip, the door frame support mechanism can maintain the bottom support clamping of the door frame to improve the stability of the door frame when it rotates; and share part of the pressure for the rotary control mechanism to prevent the rotary control mechanism from being damaged by excessive force; and when the door frame is rotated to an inclined position, the clamp block provides effective support, which can improve the stability of the door frame in the inclined state, and is conducive to the next step of assembling the side of the door frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below in conjunction with the accompanying drawings.

[0031] Figure 1 It is a schematic diagram of the overall first-person perspective three-dimensional structure of the door frame of the present invention when it is placed frontally;

[0032] Figure 2 is a schematic diagram of the overall second-view three-dimensional structure of the door frame of the present invention when placed frontally;

[0033] Figure 3 It is a schematic diagram of the overall first-person perspective three-dimensional structure when the door frame of the present invention is placed on the reverse side;

[0034] Figure 4It is a schematic diagram of the overall second-viewing perspective three-dimensional structure when the door frame of the present invention is placed on the reverse side;

[0035] Figure 5 It is a three-dimensional enlarged structural schematic diagram of the rotating mechanism, the positioning mechanism and the second driving mechanism of the present invention;

[0036] Figure 6 It is a partially cutaway three-dimensional enlarged structural schematic diagram of the rotating mechanism of the present invention;

[0037] Figure 7 It is a three-dimensional enlarged structural schematic diagram of the first driving mechanism of the present invention;

[0038] Figure 8 It is a three-dimensional enlarged structural schematic diagram of the first mounting plate of the present invention;

[0039] Fig. 9 It is a flow chart of the method of the present invention.

[0040] In the figure: 1, assembly table; 2, track mechanism; 3, rotation control mechanism; 31, rotation mechanism; 311, first drive mechanism; 3111, first motor; 3112, first sprocket; 3113, chain; 3114, second sprocket; 3115, first mounting plate; 3116, rotating rod; 312, guide mechanism; 3121, connecting shaft; 3122, slider; 3123, slide groove; 313, support plate; 32, positioning mechanism; 321, suction cup; 322, air pump; 323, connecting pipe; 33, lifting mechanism; 331, first hydraulic cylinder; 332, guide shaft; 34, second drive mechanism; 341, second hydraulic cylinder; 342, second mounting plate; 343, telescopic tube; 4, door frame support mechanism; 41, slide seat; 42, clamping block; 43, third drive mechanism; 431, second motor; 432, screw rod. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] like Figure 1-8 As shown, a rail vehicle metal door frame assembly device, such as Figure 1-4As shown, it includes an assembly table 1 with a track mechanism 2; the track mechanism 2 is used to drive the assembly table 1 to move, and the moving direction of the assembly table 1 corresponds to and is perpendicular to the installation position of the vehicle body door; the assembly table 1 is provided with a rotation control mechanism 3 for adjusting the placement angle of the door frame on the assembly table 1; when the rotation control mechanism 3 flips the door frame 180°, the position of the door frame placed on the assembly table 1 before and after the flip remains unchanged; the assembly table 1 is provided with a clamp; the clamp is used to position and clamp the door frame placed on the front or back side of the assembly table 1; it can be understood that the clamp is a prior art and is not shown in the figure and will not be described in detail.

[0043] It should be noted that when the front side of the door frame is placed on the assembly table 1, multiple clamps can be set to position and clamp the side of the door frame, and the clamps can improve the stability of the door frame placement, making it easier for workers to assemble the door frame; when the door frame is turned over by the rotating control mechanism 3 so that the back side of the door frame is placed on the assembly table 1, since the position of the door frame on the assembly table 1 remains unchanged at this time, the clamps used to position and clamp the front side of the door frame can still directly position and clamp the back side of the door frame, and there is no need to set up additional clamps or adjust the position of the clamps, thereby improving the convenience of positioning and clamping, and thus improving the efficiency of door frame assembly;

[0044] In the process of flipping the front and back of the door frame by the rotating control mechanism 3, the door frame can be positioned at a suitable angle, so that the installation position of the side parts of the door frame is adapted to the installation habits of the staff, which is convenient for quick installation of the side of the door frame, improves the comfort of the staff in assembling the door frame, and thus improves the convenience of assembly;

[0045] Since the assembly of the metal door frame of the rail vehicle is only one process in the final assembly of the rail vehicle, the structural setting of the door frame remaining in the same position before and after flipping is achieved through the rotation control mechanism 3, which reduces the space occupied by the entire device and provides more space for other assembly processes in the final assembly of the rail vehicle.

[0046] like Figure 1-4 As shown, the rotation control mechanism 3 includes a rotating mechanism 31, a positioning mechanism 32 and a lifting mechanism 33; the lifting mechanism 33 is installed on the assembly table 1, and the output end of the lifting mechanism 33 is connected to the rotating mechanism 31; the lifting mechanism 33 is used to drive the rotating mechanism 31 to rise and fall; the positioning mechanism 32 is arranged on the rotating mechanism 31, and the positioning mechanism 32 is used to fix the door frame to the rotating mechanism 31; the rotating mechanism 31 is used to drive the door frame to rotate to adapt to assembly methods of different angles.

[0047] It should be noted that after the front assembly of the door frame is completed, the clamp releases the positioning clamp of the door frame, and then drives the positioning mechanism 32 to descend and contact the door frame through the lifting mechanism 33, and the door frame is adsorbed and positioned by the positioning mechanism 32, and then the door frame is driven to flip through the rotating mechanism 31, thereby achieving the purpose of controlling the flipping of the door frame, replacing the existing lifting structure, improving the stability of the door frame when flipping, and allowing the door frame to stay at a certain flipping angle, which is convenient for the assembly of the side components of the door frame.

[0048] like Figure 2 and Figure 5-6 As shown, the rotating mechanism 31 includes a first driving mechanism 311 and a guiding mechanism 312; the first driving mechanism 311 is arranged above the assembly table 1, and the guiding mechanism 312 is installed on the first driving mechanism 311; the first driving mechanism 311 is used to drive the door frame to rotate, and the guiding mechanism 312 is used to provide guidance for the rotation of the first driving mechanism 311, so that the door frame slides during the rotation process, thereby making the front and back sides of the door frame placed in the same position on the assembly table 1.

[0049] It should be noted that the door frame is driven to rotate by the first driving mechanism 311, and during the rotation of the door frame, the door frame is driven to translate by the guide mechanism 312, so that the door frame is in the same position after flipping 180° as before flipping, and thus the assembly table 1 only needs to be set to be slightly larger than the size of the door frame; and it is convenient for the clamp to quickly position and clamp the door frame before and after flipping, thereby improving ease of use.

[0050] like Figure 5-7 As shown, the first driving mechanism 311 includes a first motor 3111, a chain 3113, a second sprocket 3114, a first mounting plate 3115 and a pair of first sprockets 3112; a mounting frame is provided above the assembly table 1, the output end of the lifting mechanism 33 is connected to the mounting frame, the first motor 3111 is installed on the mounting frame, the pair of first sprockets 3112 are rotatably connected to the mounting frame, the chain 3113 is tensioned on the pair of first sprockets 3112, the second sprocket 3114 is provided on the mounting frame, and the second sprocket 3115 is provided on the mounting frame. 114 is arranged above the chain 3113, and the second sprocket 3114 is meshed with the chain 3113, and the first mounting plate 3115 is fixed to the second sprocket 3114; the positioning mechanism 32 is installed on the first mounting plate 3115; a support plate 313 is arranged on the mounting frame; the support plate 313 is used to provide support for the transmission of the chain 3113; it can be understood that through the setting of the support plate 313, a certain support is provided for the transmission of the chain 3113 to prevent the chain 3113 from being loosened due to excessive force.

[0051] It should be noted that the first sprocket 3112 is driven to rotate by the first motor 3111, and with the cooperation of another first sprocket 3112, the chain 3113 is driven to transmit, and the multifunctional second sprocket 3114 is driven to rotate by the chain 3113, and the first mounting plate 3115 is driven to rotate by the second sprocket 3114, thereby driving the door frame on the positioning mechanism 32 to rotate.

[0052] like Figure 5-7 As shown, the guide mechanism 312 includes a rotating rod 3116, a connecting shaft 3121 and a slider 3122; one end of the rotating rod 3116 is rotatably connected to the mounting frame through a pin shaft, and the other end of the rotating rod 3116 is rotatably connected to the first mounting plate 3115 through a pin shaft, the connecting shaft 3121 is coaxially rotatably connected to the second sprocket 3114, the slider 3122 is arranged on the connecting shaft 3121, and a slide groove 3123 parallel to the length direction of the chain 3113 is opened on the mounting frame, and the slider 3122 is slidably connected to the slide groove 3123; when the chain 3113 drives the second sprocket 3114 to rotate, it drives the first mounting plate 3115 to rotate, and the first mounting plate 3115 drives the rotating rod 3116 to rotate, and through the rotation of the rotating rod 3116, the first mounting plate 3115 is pulled to move, so as to drive the slider 3122 to slide in the slide groove 3123.

[0053] It should be noted that when the first mounting plate 3115 is rotated by the first driving mechanism 311, the guide mechanism 312 is driven to move; that is, the rotation of the first mounting plate 3115 drives the rotating rod 3116 to rotate, and then the first mounting plate 3115 is pulled to move by the rotating rod 3116, so that under the guidance of the first sprocket 3112 and the slide groove 3123, the first mounting plate 3115 rotates and translates at the same time, and then drives the door frame to rotate and translate at the same time, so that after the door frame is flipped 180°, the position of the door frame before and after the flipping remains unchanged relative to the assembly table 1.

[0054] like Figure 8 As shown, the positioning mechanism 32 (such as Figure 1 As shown) includes a suction cup 321, an air pump 322 and a connecting pipe 323; the suction cup 321 is arranged on the first mounting plate 3115, the air pump 322 is installed on the first mounting plate 3115, and the air pump 322 and the suction cup 321 are connected through the connecting pipe 323.

[0055] It should be noted that when it is necessary to drive the door frame to flip, the suction cup 321 on the first mounting plate 3115 is first driven to move through the lifting mechanism 33 so that the suction cup 321 contacts the door frame, and then the air pump 322 is started to suck the air in the suction cup 321 through the connecting pipe 323, thereby generating negative pressure in the suction cup 321 to achieve the suction of the door frame; in order to improve the stability of the door frame when flipping, multiple suction cups 321 can be provided.

[0056] like Figure 2 and Figure 4 As shown, it can be understood that the present application does not limit the specific structure and installation method of the lifting mechanism 33, and only a feasible specific scheme is provided below; the lifting mechanism 33 includes a first hydraulic cylinder 331; the first hydraulic cylinder 331 is installed on the assembly table 1, and the output end of the first hydraulic cylinder 331 is connected to the mounting frame; a guide shaft 332 is provided on the assembly table 1, and the mounting frame is slidably connected to the guide shaft 332, and the axis of the output shaft of the first hydraulic cylinder 331 is arranged parallel to the axis of the guide shaft 332.

[0057] It should be noted that the first hydraulic cylinder 331 is used to drive the mounting frame to rise and fall, and the guide shaft 332 is used to improve the stability of the mounting frame during the rising and falling process; the lifting mechanism 33 can drive the positioning mechanism 32 to absorb and lift the door frame, so as to place the door frame on the assembly table 1 for positioning and assembly.

[0058] like Figure 1 and Figure 8 As shown, the rotation control mechanism 3 includes a second drive mechanism 34; it can be understood that the present application does not limit the specific structure and installation method of the second drive mechanism 34, and only a feasible specific scheme is provided below; the second drive mechanism 34 is used to drive the door frame and the vehicle body to move closer or farther away; the second drive mechanism 34 includes a second hydraulic cylinder 341, a second mounting plate 342 and a telescopic tube 343; the second hydraulic cylinder 341 is installed on the first mounting plate 3115, the second mounting plate 342 is fixed to the output end of the second hydraulic cylinder 341, the suction cup 321 is installed on the second mounting plate 342, and the connecting pipe 323 is connected to the suction cup 321 through the telescopic tube 343.

[0059] It should be noted that, after the assembly of the door body is completed, when the metal door needs to be assembled with the vehicle body, the door frame is driven to a vertical state by the rotating control mechanism 3, and then the door frame is driven to approach the vehicle body by the track mechanism 2. When the assembly table 1 prevents the door frame from continuing to be installed in alignment with the vehicle body, the second driving mechanism 34 can push the door frame to continue to move, so as to position the door frame in alignment with the vehicle body; specifically, the second mounting plate 342 is driven to move by the second hydraulic cylinder 341, and the suction cup 321 is driven to move by the second mounting plate 342, thereby driving the door frame to approach the vehicle body. Since the connecting pipe 323 and the suction cup 321 are connected by the telescopic pipe 343, it can ensure that the suction cup 321 is effectively adsorbed and the door frame is driven to move, thereby driving the door frame to be installed in alignment with the vehicle body;

[0060] During the installation of the door frame on the vehicle body, the inclination angle between the door frame and the vehicle body can be adjusted by the rotating control mechanism 3, the distance between the door frame and the vehicle body can be adjusted by the second driving mechanism 34, and the upper and lower height distances between the door frame and the vehicle body can be adjusted by the lifting mechanism 33, thereby improving the convenience of assembling the door frame and the vehicle body and improving the assembly efficiency.

[0061] like Figure 1 and Figure 3 As shown, the rail vehicle metal door frame assembly device also includes a door frame support mechanism 4 arranged on the assembly platform 1; the door frame support mechanism 4 includes a slide 41, a clamping block 42 and a third driving mechanism 43; the slide 41 is slidably connected to the assembly platform 1, and the sliding direction of the slide 41 is consistent with the sliding block 3122 (as shown in FIG. Figure 6 The sliding direction of the door frame is parallel to that of the first sprocket 3114, the clamping block 42 is rotatably connected to the sliding seat 41 through a pin shaft, and when the front or back side of the door frame is placed on the assembly table 1, the axis of the pin shaft on the clamping block 42 coincides with the axis of the second sprocket 3114; the third driving mechanism 43 is installed on the assembly table 1, and the output end of the third driving mechanism 43 is connected to the sliding seat 41; the third driving mechanism 43 is used to drive the sliding seat 41 to slide.

[0062] It should be noted that the side of the door frame is clamped and positioned by the clamping block 42; when the rotating control mechanism 3 drives the door frame to flip, the height of the door frame is controlled by the lifting mechanism 33, and the clamping block 42 is driven to move by the third driving mechanism 43, so that the clamping block 42 is passively rotated on the slide 41, and the door frame is always supported by the clamping block 42 during the rotation process, so as to improve the stability of the door frame during rotation; and to share part of the pressure for the rotating control mechanism 3 to prevent the rotating control mechanism 3 from being damaged by excessive force; and when the door frame is rotated to a tilted position, the clamping block 42 provides effective support, which can improve the stability of the door frame in the tilted state, and is conducive to the next step of assembling the side of the door frame.

[0063] like Figure 1 and Figure 3 As shown, it can be understood that the present application does not limit the specific structure and installation method of the third driving mechanism 43, and only a feasible specific scheme is provided below; the third driving mechanism 43 includes a second motor 431 and a screw rod 432, the second motor 431 is installed on the assembly table 1, the screw rod 432 is rotatably connected to the assembly table 1, and the output end of the second motor 431 is coaxially connected to the screw rod 432; the slide 41 is threadedly sleeved on the screw rod 432; when the screw rod 432 rotates, the screw rod 432 is used to drive the slide 41 to move along the axial direction of the screw rod 432.

[0064] It should be noted that the second motor 431 drives the screw rod 432 to rotate, and the screw rod 432 drives the slide 41 to move, and then drives the clamping block 42 to move, so that during the door frame flipping process, the clamping block 42 maintains a clamping state with the door frame.

[0065] like Figure 1-9 As shown, a method for using a rail vehicle metal door frame assembly device comprises the following steps:

[0066] Step 1: Front assembly positioning: Place the front of the door frame on the assembly table 1, and use a clamp to position and clamp the assembly table 1; then the staff assembles the front of the door frame;

[0067] Step 2: Side assembly positioning: The door frame is driven to rotate to a suitable angle by the rotation control mechanism 3, and the door frame is auxiliary supported by the door frame support mechanism 4 during the rotation of the rotation control mechanism 3; then the staff installs the corresponding parts on the side of the door frame;

[0068] Step 3: Rear side assembly positioning: The door frame is driven to continue rotating by the rotary control mechanism 3, so that the door frame is rotated to the rear side and placed on the assembly table 1, and then the assembly table 1 is positioned and clamped by the clamp; then the staff assembles the rear side of the door frame;

[0069] Step 4: Assemble and position the door frame and the vehicle body: drive the door frame to rotate in the opposite direction through the rotation control mechanism 3 so that the door frame is in a vertical state, and then drive the assembly platform 1 to approach the vehicle body through the track mechanism 2. When the assembly platform 1 cannot move any closer, the second drive mechanism 34 drives the door frame to continue to approach the vehicle body so that the door frame and the vehicle body are assembled vertically.

[0070] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0071] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0072] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A rail vehicle metal door frame assembly device, comprising an assembly platform (1) with a track mechanism (2); the track mechanism (2) is used to drive the assembly platform (1) to move, and the moving direction of the assembly platform (1) corresponds to and is perpendicular to the installation position of the vehicle body door; characterized in that: The assembly table (1) is provided with a rotation control mechanism (3) for adjusting the angle at which the door frame is placed on the assembly table (1); when the rotation control mechanism (3) flips the door frame 180 degrees, the position of the door frame placed on the assembly table (1) remains unchanged before and after the flip; A clamp is provided on the assembly table (1); the clamp is used to position and clamp a door frame placed on the front or back side of the assembly table (1).

2. A rail vehicle metal door frame assembly device according to claim 1, characterized in that: The rotation control mechanism (3) comprises a rotating mechanism (31), a positioning mechanism (32) and a lifting mechanism (33); the lifting mechanism (33) is installed on the assembly platform (1), and the output end of the lifting mechanism (33) is connected to the rotating mechanism (31); the lifting mechanism (33) is used to drive the rotating mechanism (31) to move up and down; the positioning mechanism (32) is arranged on the rotating mechanism (31), and the positioning mechanism (32) is used to fix the door frame to the rotating mechanism (31); the rotating mechanism (31) is used to drive the door frame to rotate to adapt to assembly methods with different angles.

3. A rail vehicle metal door frame assembly device according to claim 2, characterized in that: The rotating mechanism (31) comprises a first driving mechanism (311) and a guiding mechanism (312); the first driving mechanism (311) is arranged above the assembly table (1), and the guiding mechanism (312) is installed on the first driving mechanism (311); the first driving mechanism (311) is used to drive the door frame to rotate, and the guiding mechanism (312) is used to provide guidance for the rotation of the first driving mechanism (311), so that the door frame slides during the rotation process, thereby making the front and back sides of the door frame placed in the same position on the assembly table (1).

4. A rail vehicle metal door frame assembly device according to claim 3, characterized in that: The first driving mechanism (311) comprises a first motor (3111), a chain (3113), a second sprocket (3114), a first mounting plate (3115) and a pair of first sprockets (3112); a mounting frame is arranged above the assembly platform (1); an output end of the lifting mechanism (33) is connected to the mounting frame; the first motor (3111) is mounted on the mounting frame; a pair of first sprockets (3112) are rotatably connected to the mounting frame; the chain (3113) is tensioned on a pair of first sprockets (3112); the second sprocket (3114) is arranged on the mounting frame; the second sprocket (3114) is arranged above the chain (3113), and the second sprocket (3114) is meshed with the chain (3113); the first mounting plate (3115) is fixed to the second sprocket (3114); the positioning mechanism (32) is mounted on the first mounting plate (3115); A support plate (313) is provided on the mounting frame; the support plate (313) is used to provide support for the transmission of the chain (3113).

5. A rail vehicle metal door frame assembly device according to claim 4, characterized in that: The guide mechanism (312) comprises a rotating rod (3116), a connecting shaft (3121) and a slider (3122); one end of the rotating rod (3116) is rotatably connected to the mounting frame via a pin, the other end of the rotating rod (3116) is rotatably connected to the first mounting plate (3115) via a pin, the connecting shaft (3121) is coaxially rotatably connected to the second sprocket (3114), the slider (3122) is arranged on the connecting shaft (3121), and the mounting frame is provided with a The chain (3113) is parallel to the slide groove (3123) in the length direction, and the slider (3122) is slidably connected to the slide groove (3123); when the chain (3113) drives the second sprocket (3114) to rotate, the first mounting plate (3115) is driven to rotate, and the first mounting plate (3115) drives the rotating rod (3116) to rotate. Through the rotation of the rotating rod (3116), the first mounting plate (3115) is pulled to move, so as to drive the slider (3122) to slide in the slide groove (3123).

6. A rail vehicle metal door frame assembly device according to claim 4, characterized in that: The positioning mechanism (32) comprises a suction cup (321), an air pump (322) and a connecting pipe (323); the suction cup (321) is arranged on a first mounting plate (3115), the air pump (322) is installed on the first mounting plate (3115), and the air pump (322) and the suction cup (321) are connected via a connecting pipe (323).

7. A rail vehicle metal door frame assembly device according to claim 4, characterized in that: The lifting mechanism (33) comprises a first hydraulic cylinder (331); the first hydraulic cylinder (331) is installed on the assembly table (1), and the output end of the first hydraulic cylinder (331) is connected to the mounting frame; A guide shaft (332) is provided on the assembly table (1), and the mounting frame is slidably connected to the guide shaft (332), and the axis of the output shaft of the first hydraulic cylinder (331) is arranged parallel to the axis of the guide shaft (332).

8. The rail vehicle metal door frame assembly device according to claim 6, characterized in that: The rotation control mechanism (3) further comprises a second driving mechanism (34); the second driving mechanism (34) is used for driving the door frame to move closer to or farther from the vehicle body; the second driving mechanism (34) comprises a second hydraulic cylinder (341), a second mounting plate (342) and a telescopic tube (343); the second hydraulic cylinder (341) is mounted on the first mounting plate (3115), the second mounting plate (342) is fixed to the output end of the second hydraulic cylinder (341), the suction cup (321) is mounted on the second mounting plate (342), and the connecting tube (323) is connected to the suction cup (321) via the telescopic tube (343).

9. A rail vehicle metal door frame assembly device according to claim 8, characterized in that: The rail vehicle metal door frame assembly device also includes a door frame support mechanism (4) arranged on the assembly platform (1); the door frame support mechanism (4) includes a slide seat (41), a clamping block (42) and a third driving mechanism (43); the slide seat (41) is slidably connected to the assembly platform (1), and the sliding direction of the slide seat (41) is parallel to the sliding direction of the slider (3122); the clamping block (42) is rotatably connected to the slide seat (41) through a pin shaft, and when the front or back side of the door frame is placed on the assembly platform (1), the axis of the pin shaft on the clamping block (42) coincides with the axis of the second sprocket (3114); the third driving mechanism (43) is installed on the assembly platform (1), and the output end of the third driving mechanism (43) is connected to the slide seat (41); the third driving mechanism (43) is used to drive the slide seat (41) to slide; The third driving mechanism (43) comprises a second motor (431) and a screw rod (432); the second motor (431) is mounted on the assembly platform (1); the screw rod (432) is rotatably connected to the assembly platform (1); and the output end of the second motor (431) is coaxially connected to the screw rod (432); the slide seat (41) is threadedly sleeved on the screw rod (432); when the screw rod (432) rotates, the screw rod (432) is used to drive the slide seat (41) to move along the axial direction of the screw rod (432).

10. A method for using a rail vehicle metal door frame assembly device according to any one of claims 8 to 9, characterized in that: The following steps are involved: Step 1: front assembly positioning: place the front of the door frame on the assembly table (1), and use a clamp to position and clamp the assembly table (1); then the staff assembles the front of the door frame; Step 2: side assembly and positioning: the door frame is driven to rotate to a suitable angle by the rotation control mechanism (3), and the door frame is auxiliary supported by the door frame support mechanism (4) during the rotation of the rotation control mechanism (3); then the staff installs the corresponding parts on the side of the door frame; Step 3: Rear side assembly positioning: The door frame is driven to continue rotating by the rotation control mechanism (3), so that the door frame is rotated to the rear side and placed on the assembly table (1), and then the assembly table (1) is positioned and clamped by a clamp; then the staff assembles the rear side of the door frame; Step 4: Assembling and positioning the door frame and the vehicle body: the door frame is driven to rotate in the opposite direction by the rotary control mechanism (3) so that the door frame is in a vertical state, and then the assembly platform (1) is driven to approach the vehicle body by the track mechanism (2). When the assembly platform (1) cannot move any closer, the door frame is driven to continue to approach the vehicle body by the second drive mechanism (34), so that the door frame and the vehicle body are assembled in a vertically aligned position.

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