A high-lift lifting roller bed for a car welding workshop

Abstract

The utility model relates to a kind of high-lift lifting rolling bed of automobile welding workshop, including rolling bed, its sleeve joint is on pedestal and can be displaced along the longitudinal direction of pedestal, for conveying skid;Lifting device is for lifting the rolling bed along vertical direction, including servo motor, universal coupling, gear and rack;The servo motor is installed on rolling bed and is connected with the universal coupling at its two ends, the universal coupling is connected gear at the end away from servo motor, on pedestal, its longitudinal direction is installed with the rack meshing with the gear;Locking device is installed on the rolling bed and can be horizontally moved relative to pedestal, including cylinder, guide rod and guide wheel seat;The cylinder is installed on rolling bed and its telescopic end is connected with the guide rod, on pedestal, guide wheel seat for embedding the guide rod is installed.The utility model can realize high-lift lifting movement, with reliable locking function in high position, improve the safety and reliability of equipment.

Description

Technical Field

[0001] This utility model belongs to the field of conveyor technology, and in particular relates to a high-stroke lifting roller bed in an automotive welding workshop. Background Technology

[0002] On the automotive welding production line, the roller press serves as a key conveying equipment, undertaking the task of transferring large workpieces such as body assemblies, side panels, and floors.

[0003] As automobile manufacturing moves towards greater flexibility and faster production cycles, existing roller presses exhibit the following drawbacks during use: 1. Roller presses often employ scissor-type lifting mechanisms, which have limited lifting height, making it difficult to meet the operational requirements of vehicle body welding, resulting in low welding efficiency. Furthermore, scissor-type lifting mechanisms suffer from insufficient rigidity, easily causing swaying during lifting and affecting displacement accuracy; 2. After the roller press reaches its high position, it lacks a mechanical locking device, which can easily lead to safety accidents. Those skilled in the art urgently need to solve these technical problems. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, this utility model provides a high-stroke lifting roller bed for automotive welding workshops, which can realize smooth lifting motion at high stroke, and at the same time has a reliable locking function at the high position, thereby improving the safety and reliability of the equipment.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A high-stroke lifting roller bed for an automotive welding workshop includes a base;

[0007] A roller bed, which is fitted onto the base and can move longitudinally along the base, is used to transport skids;

[0008] A lifting device for vertically raising and lowering the roller bed, comprising a servo motor, a universal coupling, gears, and a rack;

[0009] The servo motor is mounted on a roller bed and connected to the universal coupling at both ends. The end of the universal coupling away from the servo motor is connected to a gear, and a rack that meshes with the gear is mounted on the base along its longitudinal direction.

[0010] A locking device, which is mounted on the roller bed and can move horizontally relative to the base, includes a cylinder, a guide rod, and a guide wheel seat;

[0011] The cylinder is mounted on a roller bed and its telescopic end is connected to the guide rod. A guide wheel seat for fitting the guide rod is mounted on the base.

[0012] In a preferred embodiment of the present invention, a guide device is further included, which is arranged between the roller bed and the base, including a linear guide mounted on the base and parallel to the rack, and a slider mounted on the roller bed and cooperating with the linear guide.

[0013] Two parallel guide devices are installed between one side of the roller bed and the base.

[0014] In a preferred embodiment of the present invention, the gear is configured as a helical gear, and the rack is configured as a helical rack that meshes with the helical gear.

[0015] In a preferred embodiment of the present invention, the guide wheel seat is installed on the upper end of the base and includes a first guide seat, two first guide sleeves installed side by side on the first guide seat, and a first guide wheel rotatably installed in the first guide sleeve;

[0016] The first guide wheel is mounted on a pin through a copper sleeve. The pin passes through the first guide sleeve and has a notch. An insert is installed on the first guide sleeve and engages with the notch on the pin.

[0017] In a preferred embodiment of this utility model, the guide rod has a square cross-section, and a guide member is sleeved on the guide rod.

[0018] In a preferred embodiment of the present invention, the guide members are arranged in two sets in parallel along the displacement direction of the guide rod, including a second guide seat, a second guide sleeve installed on the periphery of the second guide seat, and a second guide wheel rotatably installed in the second guide sleeve;

[0019] The second guide seat has a square through groove in the middle for the guide rod to pass through, and four second guide wheels are evenly distributed around the square through groove.

[0020] In a preferred embodiment of this utility model, the guide rod is connected to the telescopic end of the cylinder through a hinge seat, and two limit switches are installed side by side on one side of the hinge seat.

[0021] Beneficial effects:

[0022] The present invention describes a high-stroke lifting roller bed for an automotive welding workshop. Through a lifting device composed of a servo motor, helical gears, and helical racks, the roller bed can achieve smooth high-stroke lifting motion, meeting the needs of automotive welding and transfer processes. The high-stroke lifting capacity enables rapid process switching, improving production flexibility and efficiency.

[0023] This invention features a reliable locking function at a high position. The design of the guide wheel seat and guide component in the locking device can guide the guide rod to be smoothly embedded, ensuring that there will be no shaking or displacement in the locked state, thus improving safety and reliability.

[0024] The longitudinal displacement function and high-stroke lifting capacity of this roller bed reduce the waiting time for welding workpieces, optimize the production process, reduce downtime, and improve production efficiency; through precise guiding and locking design, the safety and reliability of the equipment during use are improved. Attached Figure Description

[0025] Figure 1 A schematic diagram of the structure of a high-stroke lifting roller bed in an automotive welding workshop provided by this utility model;

[0026] Figure 2 A front view of a high-stroke lifting roller bed in an automotive welding workshop provided by this utility model;

[0027] Figure 3 A partial structural diagram of a high-stroke lifting roller bed in an automotive welding workshop provided by this utility model. Figure 1 ;

[0028] Figure 4 A partial structural diagram of a high-stroke lifting roller bed in an automotive welding workshop provided by this utility model. Figure 2 ;

[0029] Figure 5 A partial structural diagram of a high-stroke lifting roller bed in an automotive welding workshop provided by this utility model. Figure 3 ;

[0030] Figure 6 This is a schematic diagram of the structure of the guide wheel seat described in this utility model;

[0031] Figure 7 This is a partial structural schematic diagram of the locking device described in this utility model;

[0032] Figure 8 This is a schematic diagram of the structure of the guide component described in this utility model.

[0033] In the diagram: 1. Base;

[0034] 2 roller beds;

[0035] 3. Lifting device, 31. Servo motor, 32. Universal coupling, 33. Gear, 34. Rack;

[0036] 4 Locking device, 41 Cylinder, 42 Guide rod, 43 Guide wheel seat, 431 First guide seat, 432 First guide sleeve, 433 First guide wheel, 434 Pin, 435 Insert, 44 Guide component, 441 Second guide seat, 442 Second guide sleeve, 443 Second guide wheel, 45 Hinge seat, 46 Limit switch;

[0037] 5. Guide device, 51. Linear rail, 52. Slider. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0039] like Figure 1-5 As shown, this utility model provides a high-stroke lifting roller bed for an automotive welding workshop, including a base 1;

[0040] Roller bed 2, which is sleeved on base 1 and can move longitudinally along base 1, is used to transport skids;

[0041] The lifting device 3, which is used to lift the roller bed 2 in the vertical direction, includes a servo motor 31, a universal coupling 32, a gear 33 and a rack 34;

[0042] The aforementioned servo motor 31 is installed in the lower middle part of the roller bed 2, and the aforementioned universal coupling 32 is connected to both ends of it. The end of the aforementioned universal coupling 32 away from the servo motor 31 is connected to a gear 33, and a rack 34 that meshes with the aforementioned gear 33 is installed on the base 1 along its longitudinal direction.

[0043] Locking device 4, which is mounted on roller bed 2 and can move horizontally relative to base 1, includes cylinder 41, guide rod 42 and guide wheel seat 43;

[0044] The cylinder 41 is installed at the lower end of the roller bed 2, and its telescopic end is connected to the guide rod 42. A guide wheel seat 43 for fitting the guide rod 42 is installed on the base 1.

[0045] The working principle and beneficial effects of the above embodiments are as follows:

[0046] Work process:

[0047] Feeding: Roller bed 2 is in the upper position, and the skid belt conveys the parts to roller bed 2 at high speed;

[0048] Welding: Roller bed 2 rapidly descends to the lower station, where the welding robot welds the workpiece;

[0049] Unloading: The roller bed 2 belt rises rapidly to the upper station, and the skid belt leaves the roller bed 2.

[0050] When the roller bed 2 needs to be raised or lowered, the servo motor 31 starts and transmits power to the gear 33 through the universal coupling 32. The gear 33 meshes with the rack 34 on the base 1. As the gear 33 rotates, it moves longitudinally along the base 1, thereby driving the roller bed 2 to rise or fall in the vertical direction.

[0051] When the roller bed 2 is raised to the upper position of the base 1, the roller bed 2 is used to transport the skid. In order to improve the stability of the high-position transport skid, a locking mechanism 4 is set. Its cylinder 41 extends and retracts to push the guide rod 42 to move horizontally. The guide rod 42 is engaged with the guide wheel seat 43 on the base 1. The guide wheel seat 43 plays a guiding and supporting role, ensuring that the guide rod 42 can be accurately engaged, thereby firmly locking the roller bed 2 on the base 1, ensuring that the roller bed 2 will not shake or shift due to external force during the transport of the skid.

[0052] The servo motor 31 of this utility model drives the symmetrically arranged gears 33 through the universal coupling 32 to ensure that the two sides are subjected to synchronous force. The universal coupling 32 compensates for the installation deviation and realizes torque diversion, reducing the load on the rack 34 on one side. The gears 33 are converted into pure linear motion of the roller bed 2. With the closed-loop control of the servo motor 31, stepless speed regulation and precise stopping are realized in the lifting process.

[0053] The structure of the guide rod 42 driven by the cylinder 41 and the guide wheel seat 43 is such that when the guide rod 42 moves horizontally, it is embedded in the guide wheel seat 43 to form an interference fit, which produces a mechanical self-locking effect.

[0054] In one embodiment,

[0055] It also includes a guide device 5, which is arranged between the roller bed 2 and the base 1, including a linear guide 51 mounted on the base 1 and parallel to the rack 34, and a slider 52 mounted on the roller bed 2 and cooperating with the linear guide 51.

[0056] Two parallel guide devices 5 are installed between one side of the roller bed 2 and the base 1;

[0057] When the roller bed 2 moves longitudinally or rises and falls along the base 1, the slider 52 slides on the linear guide 51 of the guide device 5, which plays a guiding role and ensures that the roller bed 2 always maintains a stable motion trajectory during the movement.

[0058] In one embodiment,

[0059] The aforementioned gear 33 is configured as a helical gear, and the aforementioned rack 34 is configured as a helical rack that meshes with the helical gear;

[0060] The meshing angle design of helical gears and helical racks makes the transmission smoother, reduces the impact and noise during the transmission process, and is particularly suitable for the high-stroke lifting and frequent start-stop conditions of this utility model.

[0061] In one embodiment,

[0062] like Figure 6As shown, the guide wheel seat 43 is installed on the upper end of the base 1, including a first guide seat 431, two first guide sleeves 432 installed side by side on the first guide seat 431, and a first guide wheel 433 rotatably installed in the first guide sleeve 432.

[0063] The first guide wheel 433 is mounted on the pin 434 via a copper sleeve. The pin 434 passes through the first guide sleeve 432. A notch is provided on the pin 434. An insert 435 is installed on the first guide sleeve 432. The insert 435 engages with the notch to ensure that the first guide wheel 433 rotates stably within the first guide sleeve 432.

[0064] When the guide rod 42 contacts the first guide wheel 433, the first guide wheel 433 can guide the guide rod 42 to smoothly embed into the guide wheel seat 43, thereby firmly locking the roller bed 2 onto the base 1.

[0065] In one embodiment,

[0066] like Figure 7-8 As shown, the guide rod 42 has a square cross-section, and a guide member 44 is sleeved on the guide rod 42. The guide member 44 can guide the guide rod 42 to move along a predetermined straight path.

[0067] In one embodiment,

[0068] The aforementioned guide member 44 is provided in two sets in parallel along the displacement direction of the guide rod 42, including a second guide seat 441, a second guide sleeve 442 installed on the periphery of the second guide seat 441, and a second guide wheel 443 rotatably installed in the second guide sleeve 442;

[0069] The second guide seat 441 is provided with a square through slot through which the guide rod 42 passes, and four second guide wheels 443 are evenly distributed along the periphery of the square through slot.

[0070] The design of the second guide wheel 443 can reduce the direct contact between the guide rod 42 and the guide member 44, reduce wear, and extend its service life. Four second guide wheels 443 are evenly distributed along the periphery of the square through groove, providing multi-point support and further improving the stability and accuracy of the guide rod 42 during horizontal movement.

[0071] In one embodiment,

[0072] The guide rod 42 and the telescopic end of the cylinder 41 are connected by a hinge seat 45. Two limit switches 46 are installed side by side on one side of the hinge seat 45 to limit the telescopic range of the guide rod 42. When the guide rod 42 moves to the predetermined position, the limit switch 46 will be triggered to stop the telescopic movement of the cylinder 41. The limit switch 46 can ensure that the telescopic movement of the guide rod 42 is accurate.

[0073] In summary:

[0074] This utility model discloses a high-stroke lifting roller bed for automotive welding workshops. Through a lifting device composed of a servo motor, helical gears, and helical racks, the roller bed can achieve high-stroke lifting motion, meeting the needs of automotive welding and transfer processes. The high-stroke lifting capacity enables rapid process switching, improving production flexibility and efficiency.

[0075] This invention features a reliable locking function at a high position. The design of the guide wheel seat and guide component in the locking device can guide the guide rod to be smoothly embedded, ensuring that there will be no shaking or displacement in the locked state, thus improving safety and reliability.

[0076] The longitudinal displacement function and high-stroke lifting capacity of this roller bed reduce the waiting time for welding workpieces, optimize the production process, reduce downtime, and improve production efficiency; through precise guiding and locking design, the safety and reliability of the equipment during operation are improved.

[0077] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The terms "front," "back," "left," and "right" used in the text are not specific and are mainly for more intuitive illustration of the technical solution, and do not constitute a limitation. Those skilled in the art should understand that the above embodiments are only for illustrating the technical concept and features of this utility model, and their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They should not be used to limit the scope of protection of this utility model. All equivalent changes or modifications made according to the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A high-lift roll bed for a vehicle welding plant, characterized by: Including the base (1); Roller bed (2), which is fitted onto the base (1) and can move longitudinally along the base (1), is used to transport skids; The lifting device (3), which is used to lift the roller bed (2) in the vertical direction, includes a servo motor (31), a universal coupling (32), a gear (33) and a rack (34); The servo motor (31) is mounted on the roller bed (2) and the universal coupling (32) is connected to both ends of the universal coupling (32). The end of the universal coupling (32) away from the servo motor (31) is connected to a gear (33). A rack (34) that meshes with the gear (33) is mounted on the base (1) along its longitudinal direction. The locking device (4), which is mounted on the roller bed (2) and can move horizontally relative to the base (1), includes a cylinder (41), a guide rod (42) and a guide wheel seat (43); The cylinder (41) is mounted on the roller bed (2) and its telescopic end is connected to the guide rod (42). A guide wheel seat (43) for fitting the guide rod (42) is mounted on the base (1).

2. The high-stroke lifting roller bed for an automotive welding workshop according to claim 1, characterized in that: It also includes a guide device (5), which is arranged between the roller bed (2) and the base (1), including a linear guide (51) mounted on the base (1) and installed in parallel with the rack (34), and a slider (52) mounted on the roller bed (2) and cooperating with the linear guide (51). Two parallel guide devices (5) are installed between one side of the roller bed (2) and the base (1).

3. The high-lift roll bed for a car welding plant of claim 1, wherein: The gear (33) is configured as a helical gear, and the rack (34) is configured as a helical rack that meshes with the helical gear.

4. The high-lift roll bed for a car welding plant of claim 1, wherein: The guide wheel seat (43) is installed on the upper end of the base (1) and includes a first guide seat (431), two first guide sleeves (432) installed side by side on the first guide seat (431), and a first guide wheel (433) rotatably installed in the first guide sleeve (432); The first guide wheel (433) is mounted on the pin (434) via a copper sleeve. The pin (434) passes through the first guide sleeve (432). A notch is provided on the pin (434). An insert (435) is installed on the first guide sleeve (432). The insert (435) engages with the notch on the pin (434).

5. The high-lift roll bed for a car welding plant of claim 1, wherein: The guide rod (42) has a square cross-section, and a guide member (44) is sleeved on the guide rod (42).

6. The high-lift roll bed for a car welding plant of claim 5, wherein: The guide member (44) is provided in two sets in parallel along the displacement direction of the guide rod (42), including a second guide seat (441), a second guide sleeve (442) installed on the periphery of the second guide seat (441), and a second guide wheel (443) rotatably installed in the second guide sleeve (442). The second guide seat (441) has a square through groove in the middle through which the guide rod (42) passes, and four second guide wheels (443) are evenly distributed along the periphery of the square through groove.

7. The high-lift roll bed for a welding line of an automobile as set forth in claim 1, wherein: The guide rod (42) is connected to the telescopic end of the cylinder (41) through a hinge seat (45), and two limit switches (46) are installed side by side on one side of the hinge seat (45).

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