A special-purpose vehicle welding and assembly lifting platform tooling

Abstract

This utility model discloses a special vehicle welding and assembly lifting platform fixture, including a scissor lift bracket, guardrail, steps, and a drive device. The scissor lift bracket includes a base plate, a top plate, and at least one set of scissor arms disposed between the base plate and the top plate. The scissor arms assembly includes an inner scissor arm and an outer scissor arm that are arranged in a cross configuration. The upper end of the inner scissor arm is hinged to an upper slider, and the lower end of the inner scissor arm is hinged to a lower fixed seat. The upper end of the outer scissor arm is hinged to an upper fixed seat, and the lower end of the outer scissor arm is hinged to a lower slider. The drive device includes hydraulic cylinders that correspond one-to-one with the scissor arms. The cylinder body is hinged to a lower rotating plate, and the other end of the lower rotating plate is hinged to the lower end of the outer scissor arm. The piston rod of the hydraulic cylinder is hinged to an upper rotating plate, and the other end of the upper rotating plate is hinged to a position slightly above the middle of the inner scissor arm. The guardrail is disposed on the top plate. The steps are disposed on the side of the top plate.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing technology, specifically a special vehicle welding and assembly lifting platform tooling. Background Technology

[0002] The original equipment manufacturer (OEM) welding assembly line uses a ladder-type mobile trolley as an auxiliary tooling for operators to move between the vehicle and the assembly compartment. This trolley is equipped with four casters for easy positioning. However, this solution has the following drawbacks:

[0003] 1. Insufficient stability and risk of movement: All four casters must be securely locked during use. Otherwise, uneven ground or uneven force applied by personnel can easily cause the vehicle to move unexpectedly, posing a serious safety hazard.

[0004] 2. High risk of overturning: The vehicle has a tall and narrow structure, which makes it unstable and extremely risky of overturning.

[0005] 3. Adaptability defects: When manufacturing large or small vans, the existing height of the vehicle cannot meet the operational requirements, which seriously restricts the efficiency of the production process. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a special vehicle welding and assembly lifting platform tooling, which is easy to use, improves production efficiency, has good stability and high safety.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a special vehicle welding and assembly lifting platform fixture, including a scissor lift bracket, and further including guardrails, steps, and a drive device; the scissor lift bracket includes a base plate, a top plate, and at least one set of scissor arms arranged between the base plate and the top plate, the scissor arm assembly including an inner scissor arm and an outer scissor arm arranged in a cross configuration; the bottom of the top plate is provided with an upper fixed seat and an upper guide rail, and an upper slider is slidably arranged on the upper guide rail; the base plate is provided with a lower fixed seat and a lower guide rail, and a lower slider is slidably arranged on the lower guide rail; the inner scissor arm... The upper end of the fork arm is hinged to the upper slider, and the lower end of the inner scissor arm is hinged to the lower fixed seat; the upper end of the outer scissor arm is hinged to the upper fixed seat, and the lower end of the outer scissor arm is hinged to the lower slider; the driving device includes hydraulic cylinders corresponding to the scissor arm assemblies, the cylinder body of the hydraulic cylinder is hinged to a lower rotating plate, and the other end of the lower rotating plate is hinged to the lower end of the outer scissor arm; the piston rod of the hydraulic cylinder is hinged to an upper rotating plate, and the other end of the upper rotating plate is hinged to a position slightly above the middle of the inner scissor arm; the guardrail is installed on the top plate; the steps are installed on the side of the top plate.

[0008] A further improvement is made in that: a door frame is provided at the position corresponding to the guardrail and the step, and a door panel is provided inside the door frame. One side of the door panel is hinged to the door frame by a hinge, and a positioning block is provided on the other side of the door panel; a locking pin is rotatably provided at the position opposite to the positioning block of the door frame.

[0009] A further improvement is that the drive device includes a hydraulic pump and a motor; one end of the hydraulic pump is connected to the oil tank assembly, and the other end of the hydraulic pump is connected to each oil cylinder through a hydraulic oil pipe; the motor is used to drive the hydraulic pump.

[0010] A further improvement is that: two oil cylinders are provided, and each oil cylinder is equipped with an explosion-proof valve; the two oil cylinders are connected to the hydraulic pump via a three-way valve.

[0011] A further improvement is that a first hydraulic valve, a second hydraulic valve, and a pressure gauge are sequentially installed on the hydraulic oil pipe between the hydraulic pump and the tee.

[0012] A further improvement is that the step is a fixed structure, including a fixed pedal, with inclined columns at both ends of the fixed pedal, and the upper end of the inclined columns is fixedly connected to the side of the top plate.

[0013] A further improvement is made in that: the step is a movable structure, including two fixed supports, two connecting rods, two bent arms, a spring, and a movable pedal; the two fixed supports are respectively fixedly connected to the side of the top plate, and a reinforcing rod is connected between the two fixed supports; the rear ends of the movable pedal are respectively provided with raised connecting arms; one end of the connecting rod is hinged to the rear end of the fixed support, and the other end of the connecting rod is hinged to the rear end of the connecting arm; the upper end of the bent arm is hinged to the front end of the fixed support, and the lower end of the bent arm is hinged to the front end of the connecting arm; a first positioning pin is provided at the rear end of the fixed support, a second positioning pin is provided in the middle of the connecting rod, and both ends of the spring are respectively connected to the first positioning pin and the second positioning pin.

[0014] A further improvement is that the base plate is provided with support rod assemblies that correspond one-to-one with the scissor arm assemblies.

[0015] A further improvement is that a lifting alarm is installed at each end of the top plate.

[0016] A further improvement is that a foot-operated lifting switch is installed inside the guardrail.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. In this utility model, the scissor lift support includes a base plate, a top plate, and at least one set of scissor arms disposed between the base plate and the top plate. The base plate allows the lifting platform to be placed stably next to the production line, and the safety issue is solved in conjunction with the guardrail. The hydraulic cylinder enables the working platform to move up and down, solving the problem of insufficient height.

[0019] 2. In this utility model, the guardrail is equipped with a gate for easy access, and a foot-operated lifting switch is installed inside the guardrail. A lifting operation alarm is also installed on the side to ensure production safety.

[0020] 3. In this utility model, the movable step has a simple structure and can be flipped and used manually, making it easy to operate. Attached Figure Description

[0021] Figure 1 This is a front view of the special vehicle welding and assembly lifting platform tooling in Embodiment 1 of this utility model;

[0022] Figure 2 for Figure 1 The left view;

[0023] Figure 3 This is a front view of the scissor lift bracket in Embodiment 1 of this utility model;

[0024] Figure 4 This is a front view of the scissor lift bracket after it has been lowered in Embodiment 1 of this utility model;

[0025] Figure 5 This is a schematic diagram of the driving device in Embodiment 1 of this utility model;

[0026] Figure 6 This is a front view of the door in Embodiment 1 of this utility model;

[0027] Figure 7 This is a front view of the fixed step in Embodiment 1 of this utility model;

[0028] Figure 8 for Figure 7 The left view;

[0029] Figure 9 This is a schematic diagram of the movable step structure in Embodiment 2 of this utility model.

[0030] Figure label:

[0031] 1-Scissor lift bracket; 101-Base plate; 102-Top plate; 103-Lower fixed seat; 104-Lower guide rail; 105-Lower slider; 106-Upper fixed seat; 107-Upper guide rail; 108-Upper slider; 109-Inner scissor lift arm; 110-Outer scissor lift arm; 111-Support rod assembly; 112-Lifting alarm;

[0032] 2-Drive unit; 201-Hydraulic cylinder; 202-Upper rotating plate; 203-Lower rotating plate; 204-Oil tank assembly; 205-Hydraulic pump; 206-Motor; 207-T-way valve; 208-First hydraulic valve; 209-Second hydraulic valve; 210-Pressure gauge;

[0033] 3-Guardrail; 31-Door frame; 32-Door panel; 33-Hinge; 34-Positioning block; 35-Locking pin;

[0034] 4-Step; 401-Fixed pedal; 402-Angled column; 411-Reinforcing rod; 412-Fixed bracket; 413-Moving pedal; 414-Connecting arm; 415-Bending arm; 416-Connecting rod; 417-First positioning pin; 418-Second positioning pin; 419-Spring. Detailed Implementation

[0035] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0036] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0038] The following description, in conjunction with the accompanying drawings, further illustrates specific embodiments of the present invention, making the technical solution and beneficial effects of the present invention clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention. Example

[0039] See Figure 1 and Figure 2 As shown, this utility model embodiment provides a special vehicle welding and assembly lifting platform tooling, including a scissor lift bracket 1, a guardrail 3, steps 4 and a drive device 2.

[0040] See Figure 3and Figure 4 As shown, the scissor lift bracket 1 includes a base plate 101, a top plate 102, and at least one set of scissor arms disposed between the base plate 101 and the top plate 102. The scissor arm assembly includes an inner scissor arm 109 and an outer scissor arm 110 arranged in a cross configuration. The bottom of the top plate 102 is provided with an upper fixing seat 106 and an upper guide rail 107, and an upper slider 108 is slidably disposed on the upper guide rail 107. The base plate 101 is provided with a lower fixing seat 103 and a lower… The guide rail 104 has a lower slider 105 slidably mounted on it. The upper end of the inner scissor arm 109 is hinged to the upper slider 108, and the lower end of the inner scissor arm 109 is hinged to the lower fixed seat 103. The upper end of the outer scissor arm 110 is hinged to the upper fixed seat 106, and the lower end of the outer scissor arm 110 is hinged to the lower slider 105. Specifically, the base plate 101 is provided with support rod assemblies 111 corresponding to the scissor arm assemblies. Lifting alarms 112 are respectively installed at both ends of the top plate 102.

[0041] See Figure 3 and Figure 5 As shown, the drive unit 2 includes hydraulic cylinders 201 corresponding to the scissor arm assemblies. The cylinder body of each hydraulic cylinder 201 is hinged to a lower rotating plate 203, and the other end of the lower rotating plate 203 is hinged to the lower end of the outer scissor arm 110. The piston rod of each hydraulic cylinder 201 is hinged to an upper rotating plate 202, and the other end of the upper rotating plate 202 is hinged to a position slightly above the middle of the inner scissor arm 109. Specifically, the drive unit 2 includes a hydraulic pump 205 and a motor 206. One end of the hydraulic pump 205 is connected to the oil tank assembly 204, and the other end of the hydraulic pump 205 is connected to each hydraulic cylinder 201 via hydraulic oil pipes. The motor 206 drives the hydraulic pump 205. Two hydraulic cylinders 201 are provided, and each hydraulic cylinder 201 is equipped with an explosion-proof valve. The two hydraulic cylinders 201 are connected to the hydraulic pump 205 via a three-way valve 207. A first hydraulic valve 208, a second hydraulic valve 209, and a pressure gauge 210 are sequentially installed on the hydraulic oil pipe between the hydraulic pump 205 and the three-way valve 207.

[0042] Guardrail 3 is installed on the top plate 102; see Figure 6 As shown, a door frame 31 is provided at the position corresponding to the step 4 of the guardrail 3. A door panel 32 is provided inside the door frame 31. One side of the door panel 32 is hinged to the door frame 31 by a hinge 33, and a positioning block 34 is provided on the other side of the door panel 32. A locking pin 35 is rotatably provided at the position opposite to the positioning block 34 of the door frame 31. Specifically, a foot-operated lifting switch is provided inside the guardrail 3.

[0043] Step 4 is located on the side of the top plate 102. See also Figure 7 and Figure 8 As shown, in this embodiment, the step 4 is a fixed structure, including a fixed pedal 401. The two ends of the fixed pedal 401 are respectively provided with inclined columns 402, and the upper end of the inclined columns 402 is fixedly connected to the side of the top plate 102. Example

[0044] See Figure 9 As shown, the structure of this embodiment is basically the same as that of Embodiment 1. The difference is that in this embodiment, the step 4 is a movable structure, including two fixed supports 412, two connecting rods 416, two bent arms 415, a spring 419, and a movable pedal 413. The two fixed supports 412 are fixedly connected to the side of the top plate 102, and a reinforcing rod 411 is connected between the two fixed supports 412. The rear ends of the movable pedal 413 are respectively provided with raised connecting arms 414. One end of the connecting rod 416 is hinged to the rear end of the fixed support 412, and the other end of the connecting rod 416 is hinged to the rear end of the connecting arm 414. The upper end of the bent arm 415 is hinged to the front end of the fixed support 412, and the lower end of the bent arm 415 is hinged to the front end of the connecting arm 414. The rear end of the fixed support 412 is provided with a first positioning pin 417, the middle part of the connecting rod 416 is provided with a second positioning pin 418, and the two ends of the spring 419 are respectively connected to the first positioning pin 417 and the second positioning pin 418.

[0045] In the description of this specification, references to terms such as "an embodiment," "preferred," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. Illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] Based on the above description of the structure and principle, those skilled in the art should understand that this utility model is not limited to the specific embodiments described above. Improvements and substitutions based on this utility model using techniques known in the art all fall within the protection scope of this utility model and should be defined by the claims.

Claims

1. A special vehicle welding and assembly lifting platform tooling, including a scissor lift bracket (1), characterized in that: It also includes guardrails (3), steps (4) and drive unit (2); The scissor lift bracket (1) includes a base plate (101), a top plate (102), and at least one set of scissor arms disposed between the base plate (101) and the top plate (102). The scissor arms assembly includes an inner scissor arm (109) and an outer scissor arm (110) arranged in a cross configuration. The bottom of the top plate (102) is provided with an upper fixing seat (106) and an upper guide rail (107), and the upper guide rail (107) is slidably provided with an upper slider (108). The base plate (101) 1) A lower fixed seat (103) and a lower guide rail (104) are provided on the upper part, and a lower slider (105) is slidably provided on the lower guide rail (104); the upper end of the inner scissor arm (109) is hinged to the upper slider (108), and the lower end of the inner scissor arm (109) is hinged to the lower fixed seat (103); the upper end of the outer scissor arm (110) is hinged to the upper fixed seat (106), and the lower end of the outer scissor arm (110) is hinged to the lower slider (105); The drive device (2) includes a hydraulic cylinder (201) corresponding to each scissor arm assembly. The cylinder body of the hydraulic cylinder (201) is hinged to a lower rotating plate (203), and the other end of the lower rotating plate (203) is hinged to the lower end of the outer scissor arm (110). The piston rod of the hydraulic cylinder (201) is hinged to an upper rotating plate (202), and the other end of the upper rotating plate (202) is hinged to the upper part of the middle of the inner scissor arm (109). The guardrail (3) is installed on the top plate (102); The step (4) is located on the side of the top plate (102).

2. The special vehicle welding and assembly lifting platform tooling according to claim 1, characterized in that: A door frame (31) is provided at the position corresponding to the guardrail (3) and the step (4). A door panel (32) is provided inside the door frame (31). One side of the door panel (32) is hinged to the door frame (31) by a hinge (33), and a positioning block (34) is provided on the other side of the door panel (32). A locking pin (35) is rotatably provided at the position opposite to the positioning block (34) of the door frame (31).

3. The special vehicle welding and assembly lifting platform tooling according to claim 1, characterized in that: The drive device (2) includes a hydraulic pump (205) and a motor (206); one end of the hydraulic pump (205) is connected to the oil tank assembly (204), and the other end of the hydraulic pump (205) is connected to each oil cylinder (201) through a hydraulic oil pipe; the motor (206) is used to drive the hydraulic pump (205).

4. The special vehicle welding and assembly lifting platform tooling according to claim 3, characterized in that: There are two oil cylinders (201), and each oil cylinder (201) is equipped with an explosion-proof valve; the two oil cylinders (201) are connected to the hydraulic pump (205) through a three-way valve (207).

5. The special vehicle welding and assembly lifting platform tooling according to claim 4, characterized in that: A first hydraulic valve (208), a second hydraulic valve (209), and a pressure gauge (210) are sequentially installed on the hydraulic oil pipe between the hydraulic pump (205) and the tee (207).

6. The special vehicle welding and assembly lifting platform tooling according to claim 1, characterized in that: The step (4) is a fixed structure, including a fixed pedal (401). The two ends of the fixed pedal (401) are respectively provided with inclined columns (402), and the upper end of the inclined column (402) is fixedly connected to the side of the top plate (102).

7. The special vehicle welding and assembly lifting platform tooling according to claim 1, characterized in that: The step (4) is a movable structure, including two fixed supports (412), two connecting rods (416), two bent arms (415), a spring (419), and a movable pedal (413); the two fixed supports (412) are fixedly connected to the sides of the top plate (102), and a reinforcing rod (411) is connected between the two fixed supports (412); the rear ends of the movable pedal (413) are respectively provided with raised connecting arms (414); one end of the connecting rod (416) is connected to the rear end of the fixed support (412). The connecting rod (416) is hinged at one end, and the other end of the connecting rod (416) is hinged to the rear end of the connecting arm (414); the upper end of the bent arm (415) is hinged to the front end of the fixed bracket (412), and the lower end of the bent arm (415) is hinged to the front end of the connecting arm (414); the rear end of the fixed bracket (412) is provided with a first positioning pin (417), and the middle part of the connecting rod (416) is provided with a second positioning pin (418); the two ends of the spring (419) are respectively connected to the first positioning pin (417) and the second positioning pin (418).

8. The special vehicle welding and assembly lifting platform tooling according to claim 1, characterized in that: The base plate (101) is provided with a support rod assembly (111) that corresponds one-to-one with the scissor arm assembly.

9. The special vehicle welding and assembly lifting platform tooling according to claim 1, characterized in that: The top plate (102) is equipped with lifting alarm devices (112) at both ends.

10. The special vehicle welding and assembly lifting platform tooling according to claim 1, characterized in that: The guardrail (3) is equipped with a foot-operated lifting switch.

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