A multi-vehicle platform switching hoist switching station for an automobile body

Abstract

The present application relates to a kind of automobile body multi-vehicle platform switching spreader switching station, for the flexible switching of spreader, comprising: lifting base, can be up and down lifting movement;Floating tray frame, movably installed on the lifting base, and can move in plane along the lifting base;Righting mechanism, installed on the floating tray frame, for positioning the position of spreader;Self-adapting pin pulling mechanism, installed on the upper portion of the floating tray frame, and can be moved up and down, for the positioning pin of spreader when leg switching is inserted and pulled;And lever mechanism, for the rotating arm of the spreader is switched by poking. Compared with prior art, the present application can eliminate the influence caused by too large stop position error of spreader, reduce damage to external spreader and prolong the service life of its own structure, and can adapt to the situation that the stop position of spreader is poor.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automotive production automation conveying equipment, in particular to a multi-model platform switching hoist switching station for automobile bodies. BACKGROUND

[0002] At present, in the logistics transportation of automobile factories, fixed leg structures are generally used, and it is difficult to achieve flexible switching of model platforms for production. Even if switching is used for production, manual or semi-automatic switching is mostly used. Due to the relatively large switching structure of the hoist, the posture of the hoist cannot be adapted, and external force is forcibly applied to the hoist to correct the position of the hoist to complete the switching work. This has a certain damage to the hoist and the scissor fork of the lifting part, and the corresponding switching mechanism is also subjected to a relatively large external force, which leads to unreliable long-term operation and increases the maintenance cost. SUMMARY

[0003] The purpose of the present application is to provide a multi-model platform switching hoist switching station for automobile bodies to solve the problems of manual switching errors, economic losses and low efficiency under high rhythm.

[0004] The purpose of the present application is achieved by the following technical solutions:

[0005] A multi-model platform switching hoist switching station for automobile bodies is used for flexible switching of hoists, comprising:

[0006] A lifting base capable of moving up and down;

[0007] A floating tray frame movably installed on the lifting base and capable of moving in a plane along the lifting base;

[0008] A righting mechanism installed on the floating tray frame for positioning the position of the hoist;

[0009] An adaptive pin pulling mechanism installed on the upper part of the floating tray frame for inserting and pulling the positioning pin of the hoist during switching of the hoist; and

[0010] A lever mechanism for pushing and switching the rotating arm of the hoist.

[0011] Further, the lifting base is an L-shaped support welded by square steel pipes, a main lifting cylinder is connected to the upper part of the lifting base for driving the lifting movement thereof, and the two sides of the lifting base are connected with external support frames through slide rail block pairs to realize stable up and down movement.

[0012] Further, the floating tray frame is installed on the lifting base through bidirectional double linear guides.

[0013] Further, the lifting base is provided with an x-direction zero-return mechanism for returning the floating tray carrier to the original position along the lifting direction of the lifting tool, and a y-direction spring centering mechanism perpendicular to the x-direction;

[0014] The x-direction zero-return mechanism comprises an x-direction positioning rod and an x-direction zero-return guide rod cylinder, the positioning rod is fixedly arranged on the floating tray carrier, and the x-direction zero-return guide rod cylinder is arranged on the lifting base, the x-direction zero-return guide rod cylinder clamps the x-direction positioning rod to complete the x-direction zero-return of the floating tray carrier.

[0015] The y-direction spring centering mechanism comprises a pair of spring centering devices arranged on the lifting base, a y-direction positioning rod is arranged between the spring centering devices, the y-direction positioning rod is fixedly arranged on the floating tray carrier, and the spring centering devices abut against the y-direction positioning rod to complete the y-direction zero-return of the floating tray carrier.

[0016] Further, the righting mechanism comprises a righting cylinder and a swing arm, the swing arm is a curved rod, one end of the swing arm is hingedly connected to the floating tray carrier, and the other end of the swing arm is provided with a roller, the righting cylinder is hingedly connected to the middle curved part of the swing arm through the telescopic shaft,

[0017] When the telescopic shaft of the righting cylinder is telescopically moved, the swing arm swings, and the roller at the end of the swing arm is attached to the lifting tool, so that the position of the lifting tool is used to coarsely position the floating tray carrier.

[0018] Further, the righting mechanism comprises an x-direction righting mechanism along the lifting direction of the lifting tool, when the righting mechanism is attached to the lifting tool, the platform will float with the position of the lifting tool to eliminate the influence of the too large stop position error of the lifting tool.

[0019] Further, the lever mechanism comprises a swing cylinder, a rotating arm and a lever, the rotating arm is horizontally arranged on the floating tray carrier, one end of the rotating arm is hingedly connected to the floating tray carrier through a mounting seat, the lever is vertically arranged on the other end of the rotating arm and can rotate, the telescopic shaft of the swing cylinder is hingedly connected to the middle part of the rotating arm, when the telescopic shaft of the swing cylinder is telescopically moved, the rotating arm rotates, and the lever is used to shift and switch the rotating arm of the lifting tool.

[0020] Further, the self-adaptive pin pulling mechanism comprises:

[0021] a vertical mounting frame vertically arranged on the floating tray carrier;

[0022] a vertical sliding frame vertically and slidably arranged on the vertical mounting frame;

[0023] a horizontal moving sliding frame horizontally and slidably arranged at the lower end of the vertical sliding frame; and

[0024] The pin pulling assembly is installed at the lower end of the horizontal moving slide, and comprises a pressing wheel, a pin pulling plate and a pin pressing plate.

[0025] Further, a back pressure cylinder is arranged on the floating tray frame away from the side of the spreader, and the back pressure cylinder is composed of a guide rod cylinder, which provides a relatively small back pressure to prevent the floating tray frame from moving excessively and causing inaccurate positioning.

[0026] Further, a main positioning pin is arranged on the floating tray frame and matched with the positioning hole of the spreader, and the main positioning pin is inserted into the positioning hole when the spreader reaches the predetermined position of the switching station.

[0027] Further, an ultrasonic sensor is arranged on the floating tray frame for sensing the position of the rotating arm of the spreader, and the ultrasonic sensor is compared with the vehicle type in the system when the spreader reaches the predetermined position of the switching station, and the lever mechanism is operated to the switching position if switching needs to be performed.

[0028] The spreader switching station is matched with the spreader, and the specific working process is as follows:

[0029] (1) Righting: the homing spreader is moved to the switching station and hovers at the switching station, and the righting mechanism on the switching station starts to work, the righting cylinder of the righting mechanism is actuated to drive the swing arm with the roller to abut against the spreader arm, the position of the spreader is used to coarsely position the tray, and the floating tray frame is finely adjusted, and then the righting mechanism is homed;

[0030] (2) Detection comparison and positioning: the lifting base drives the floating tray frame to move upward, the main positioning pin on the floating tray frame is inserted into the positioning hole of the spreader, and the ultrasonic sensor on the floating tray frame senses the matched vehicle type of the spreader and compares it with the vehicle type in the system, if the vehicle types are consistent, the release is performed, and if the vehicle types are inconsistent, step (3) is performed;

[0031] (3) Pin pulling: if switching needs to be performed, the self-adapting pin pulling mechanism is then moved downward to pull out the positioning pin of the spreader;

[0032] (4) Levering and swinging the arm: the lever mechanism is operated to the switching position to lever and switch the rotating arm of the spreader;

[0033] (5) Pin inserting: the self-adapting pin pulling mechanism inserts the positioning pin, and the floating tray frame is homed.

[0034] Compared with the prior art, the present application can eliminate the influence of too large lifting appliance parking position error, reduce damage to external lifting appliances and prolong the service life of the structure itself, can adapt to the case of poor lifting appliance parking position, and has great adaptability in x, y and z directions. The present application overcomes the large influence on external structure in the prior art, provides a lifting appliance switching station for automobile body multi-model platform switching with stable operation and flexible adaptation to lifting appliance parking position. According to the vehicle model in the system, whether the current empty lifting appliance switchable leg is in the matching gear is detected by a sensor, and a release passing or operation switching instruction is executed. The present application has simple structure, stable and reliable operation. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 is a front view structural schematic diagram of the device of the present application;

[0036] Figure 2 is a top view structural schematic diagram of the device of the present application;

[0037] Figure 3 is a side view structural schematic diagram of the device of the present application;

[0038] Figure 4 is a partial enlarged structural schematic diagram of Figure 2 ;

[0039] Figure 5 is a structural schematic diagram of the spring centering device of the present application. DETAILED DESCRIPTION

[0040] The present application will be described in detail below in combination with the drawings and specific embodiments.

[0041] Referring to Figures 1-4 , a lifting appliance switching station for automobile body multi-model platform switching is used for flexible switching of lifting appliances, comprising:

[0042] a lifting base 1 capable of up-down lifting movement;

[0043] a floating tray frame 2 movably mounted on the lifting base 1 and capable of moving in a plane along the lifting base 1;

[0044] a righting mechanism 4 mounted on the floating tray frame 2 for positioning the position of the lifting appliance;

[0045] a self-adaptive pin pulling mechanism 3 mounted on the upper part of the floating tray frame 2 for inserting and pulling the positioning pin of the lifting appliance during switching of the lifting appliance; and

[0046] a lever mechanism 5 for pushing and switching the rotating arm of the lifting appliance.

[0047] The switching station is symmetrically arranged, specifically, the lifting base 1 is an L-shaped support welded by square steel pipes, a main lifting cylinder 6 is connected to the upper part of the lifting base 1 for driving the lifting movement of the lifting base 1, and the two sides of the lifting base 1 are connected with external support frames through slide rail and block pairs to realize stable up and down movement.

[0048] The floating tray frame 2 is installed on the lifting base 1 through bidirectional double linear guide rails, and the lifting base 1 is provided with an x-direction zero-return mechanism for returning the floating tray frame 2 to the original position along the moving direction of the lifting tool, and a y-direction spring centering mechanism perpendicular to the x-direction; the x-direction zero-return mechanism comprises an x-direction positioning rod 9 and an x-direction return guide rod cylinder 10, the positioning rod 9 is fixedly arranged on the floating tray frame 2, and the x-direction return guide rod cylinder 10 is arranged on the lifting base 1, the x-direction return guide rod cylinder 10 clamps the x-direction positioning rod 9 to complete the x-direction return of the floating tray frame 2; the y-direction spring centering mechanism comprises a pair of spring centering devices 11 arranged on the lifting base 1, a y-direction positioning rod 12 is arranged between the spring centering devices 11, the y-direction positioning rod 12 is fixedly arranged on the floating tray frame 2, and the spring centering devices 11 abut against the y-direction positioning rod 12 to complete the y-direction return of the floating tray frame 2; through the arrangement of the x-direction zero-return mechanism and the y-direction spring centering mechanism, the influence of the too large stop error of the lifting tool is eliminated, and accumulated error will be generated when the floating tray is switched to different lifting tools next time, so the spring centering device needs to be used to eliminate the accumulated error, as shown in Figure 5 the drawing, the spring centering device has small volume, adjustable force and adjustable position, the centering force is set in the range of 22kg-30kg, and the zero-return mechanism uses a guide rod cylinder to reduce the volume and realize the zero-return function after the tray is floated.

[0049] The righting mechanism 4 comprises a righting cylinder 401 and a swing arm 402, the swing arm 402 is a curved rod, one end of the swing arm 402 is hinged to the floating tray frame 2, and the other end of the swing arm 402 is provided with a roller, the telescopic shaft of the righting cylinder 401 is hinged to the middle curved part of the swing arm, and the swing arm swings when the telescopic shaft of the righting cylinder 401 extends and retracts, the roller at the end of the swing arm is attached to the lifting tool to position and right the lifting tool, and the righting mechanism comprises an x-direction righting mechanism along the moving direction of the lifting tool.

[0050] The shifting lever mechanism 5 comprises a swing cylinder 501, a rotating arm 502 and a shifting lever 503, the rotating arm 502 is horizontally installed on the floating tray frame 2, one end of the rotating arm 502 is hinged to the floating tray frame 2 through a mounting seat, the shifting lever 503 is vertically installed on the other end of the rotating arm 502 and can rotate, the telescopic shaft of the swing cylinder 501 is hinged to the middle part of the rotating arm 502, and the rotating arm 502 rotates when the telescopic shaft of the swing cylinder 501 extends and retracts, and the rotating arm 502 drives and shifts the rotating arm of the lifting tool through the shifting lever 503.

[0051] The adaptive pin pulling mechanism 3 comprises a vertical mounting frame 303 vertically mounted on the floating tray frame, a vertical sliding frame 304 slidably mounted on the vertical mounting frame, a horizontal moving sliding frame 301 horizontally slidably mounted on the lower end of the vertical sliding frame, and a pin pulling assembly 302 mounted on the lower end of the horizontal moving sliding frame 301, comprising a pressing wheel, a pin pulling plate and a pin pressing plate, the pin pulling plate is a plug-in plate structure with a V-shaped opening and can pull out the positioning pin on the spreader, the pin pressing plate is arranged on the upper part of the pin pulling plate, and the pressing wheel is arranged on the side of the pin pulling plate and the pin pressing plate and is used for accurately determining the displacement of the pin pulling plate and the pin pressing plate. In addition, a plurality of displacement sensors are arranged on the pin pulling assembly.

[0052] The floating tray frame 2 is provided with a back pressure cylinder 7 on the side away from the spreader, the back pressure cylinder 7 is composed of a guide rod cylinder, the floating tray frame 2 is provided with an ultrasonic sensor 13 for sensing the position of the rotating arm of the spreader, and the floating tray frame 2 is provided with a main positioning pin 8 matched with the positioning hole of the spreader.

[0053] The spreader switching station is used in cooperation with the spreader, and the specific working process is as follows:

[0054] 1. Righting: The homing spreader moves to the switching station and hovers at the switching station, the righting mechanism on the switching station starts to work, the righting cylinder of the righting mechanism acts, the swing arm with the roller is abutted against the spreader support leg, the position of the spreader is used to coarsely position the floating tray frame, after the floating tray frame is finely adjusted, the righting mechanism is homed;

[0055] 2. Detection comparison and positioning: The lifting base drives the floating tray frame to move upward, the main positioning pin on the floating tray frame is inserted into the positioning hole of the spreader, at the same time, the ultrasonic sensor on the floating tray frame senses the matched vehicle model of the spreader and compares with the vehicle model in the system, if the vehicle model is consistent, the release is executed, if not, step 3 is executed;

[0056] 3. Pin pulling: if the switching needs to be executed, the adaptive pin pulling mechanism is lowered to pull out the positioning pin of the spreader;

[0057] 4. Swing arm turning: the lever mechanism is operated to the switching position to turn and switch the rotating arm of the spreader;

[0058] 5. Pin insertion: the adaptive pin pulling mechanism is inserted into the positioning pin, and the floating tray frame is homed.

[0059] The above description of the embodiments is for the purpose of facilitating the understanding and use of the invention by those skilled in the art. Those skilled in the art can easily make various modifications to the embodiments and apply the general principles described herein to other embodiments without creative labor. Therefore, the present application is not limited to the above embodiments, and the improvements and modifications made by those skilled in the art without departing from the scope of the present application should be within the scope of protection of the present application.

Claims

1. A multi-vehicle platform switching spreader switching station for flexible switching of a spreader, characterized in that, The utility model relates to a lifting device for lifting and switching spreader, which comprises: a lifting base (1) capable of moving up and down; a floating tray frame (2) movably installed on the lifting base (1) and capable of moving in a plane along the lifting base (1); a righting mechanism (4) installed on the floating tray frame (2) for positioning the position of a spreader; an adaptive pin pulling mechanism (3) installed on the upper part of the floating tray frame (2) for inserting and pulling the positioning pin of the spreader during switching of the spreader; the adaptive pin pulling mechanism (3) comprises: a vertical mounting bracket (303) vertically mounted on the floating tray frame; a vertical sliding bracket (304) vertically and slidably mounted on the vertical mounting bracket; a horizontal moving sliding bracket (301) horizontally and slidably mounted on the lower end of the vertical sliding bracket; and a pin pulling assembly (302) installed on the lower end of the horizontal moving sliding bracket, comprising a pressure wheel, a pin pulling plate and a pin pressing plate; the pin pulling plate is a plug-in plate structure with a V-shaped opening and is capable of pulling out the positioning pin on the spreader, the pin pressing plate is arranged on the upper part of the pin pulling plate, and the pressure wheel is arranged on the side of the pin pulling plate and the pin pressing plate; a lever mechanism (5) for pushing and switching the rotating arm of the spreader; the lever mechanism (5) comprises a swing cylinder (501), a rotating arm (502) and a lever (503); the rotating arm (502) is horizontally mounted on the floating tray frame (2) and is hingedly connected to the floating tray frame (2) through a mounting seat at one end; the lever (503) is vertically and rotatably mounted on the other end of the rotating arm (502); the extension shaft of the swing cylinder (501) is hingedly connected to the middle part of the rotating arm (502); when the extension shaft of the swing cylinder (501) is extended or retracted, the rotating arm (502) is rotated, and the rotating arm of the spreader is pushed and switched through the lever (503); the floating tray frame (2) is installed on the lifting base (1) through a bidirectional double linear guide rail; the lifting base (1) is provided with an x-direction zero-return mechanism for returning the floating tray frame (2) to the original position along the moving direction of the spreader and a y-direction spring centering mechanism perpendicular to the x-direction; the x-direction zero-return mechanism comprises an x-direction positioning rod (9) and an x-direction return guide rod cylinder (10); the positioning rod (9) is fixedly arranged on the floating tray frame (2); the x-direction return guide rod cylinder (10) is arranged on the lifting base (1); the x-direction return guide rod cylinder (10) clamps the x-direction positioning rod (9) to complete the x-direction return of the floating tray frame (2); the y-direction spring centering mechanism comprises a pair of spring centering devices (11) arranged on the lifting base (1); a y-direction positioning rod (12) is arranged between the spring centering devices (11); the y-direction positioning rod (12) is fixedly arranged on the floating tray frame (2); the spring centering devices (11) abut against the y-direction positioning rod (12) to complete the y-direction return of the floating tray frame (2).

2. The multi-vehicle platform switching spreader switching station of claim 1, wherein, The lifting base (1) is an L-shaped support welded by square steel pipes, a main lifting cylinder (6) is connected to the upper part of the lifting base (1) for driving the lifting movement, and the two sides of the lifting base (1) are connected with external support frames through slide rail block pairs to realize stable up-down movement.

3. The multi-vehicle platform switching spreader switching station of claim 1, wherein, The righting mechanism (4) comprises a righting cylinder (401) and a swing arm (402), the swing arm (402) is a curved rod, one end of which is hinged to the floating tray frame (2), and the other end is provided with a roller, and the righting cylinder (401) is hinged to the middle curved part of the swing arm at the end of the telescopic shaft, When the telescopic shaft of the righting cylinder is telescopically moved, the swing arm is swung, the roller at the end of the swing arm is attached to the lifting tool, and the position of the lifting tool is used to coarsely position the floating tray frame (2).

4. The multi-vehicle platform switching spreader switching station of claim 3, wherein, The righting mechanism comprises an x-direction righting mechanism along the moving direction of the lifting tool.

5. The multi-vehicle platform switching spreader switching station of claim 1, wherein, A back pressure cylinder (7) is arranged on the floating tray frame (2) on the side far from the lifting tool, the back pressure cylinder (7) is composed of a guide rod cylinder, and the floating tray frame (2) is provided with an ultrasonic sensor (13) for sensing the position of the rotating arm of the lifting tool.

6. The multi-vehicle platform switching spreader switching station of claim 1, wherein, The floating tray frame (2) is provided with a main positioning pin (8) matched with the positioning hole of the lifting tool.

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