CN209922790U - A secondary lifting mechanism for an assembly trolley - Google Patents

Abstract

The utility model relates to a secondary lifting mechanism for assembling a trolley, which comprises a bottom mounting frame, the bottom mounting frame is connected to one end of an inner scissor arm, the other end of the inner scissor arm is connected to an inner scissor arm connecting shaft, and two parts of the inner scissor arm connecting shaft are connected The end is connected to the inner scissor arm rolling wheel set, the upper installation frame is connected to one end of the outer scissor arm, the other end of the outer scissor arm is connected to the outer scissor arm connecting shaft, the two ends of the outer scissor arm connecting shaft are connected to the outer scissor arm rolling wheel set, the outer scissor arm is connected. The arm rolling wheel set is located between the lower wheel set guide plate and the bottom mounting frame, the inner scissor arm is connected to one end of the lifting link, the other end of the lifting link is fixed on the bottom mounting frame, and the lifting pulley is set on the side of the lifting link. The middle of the outer scissor arm connecting shaft is connected with one end of the fixed arm, and the bottom surface of the other end of the fixed arm is provided with a fixed claw. The utility model can not only reduce the installation space, but also increase the lifting height.

Description

A secondary lifting mechanism for an assembly trolley

technical field

The utility model relates to a secondary lifting mechanism for assembling a trolley, belonging to the technical field of lifts.

Background technique

At present, the trolley (skateboard) assembly line is the most used in the automobile final assembly line, which belongs to the ground conveying equipment. During the assembly process, workers complete the assembly of related parts on an assembly trolley. In the modern automobile interior or the completion of the assembly line, in order to improve the production efficiency of the vehicle assembly workshop, it is often necessary to lift the body to better facilitate the assembly of seats, front and rear covers, etc. for workers. The current situation is that the lifting height of the lifting mechanism is often affected by the space of the trolley, and the lifting stroke is not very large. The stroke of the lifting mechanism is mainly determined by the mechanical minimum height of the mechanism and the lifting stroke. The minimum height of the lifting mechanism is high, and the corresponding assembly trolley is also high. The trolley is too high and it is inconvenient for workers to get on and off the trolley; the jacking stroke has a great relationship with the height of the space below the trolley. The higher the lift stroke.

Due to the above reasons, the lift height of the body on our assembly trolleys tends to be greatly affected. The demand for a lifting mechanism that can not only reduce space utilization, but also raise a high height is becoming more and more urgent.

SUMMARY OF THE INVENTION

The purpose of the utility model is to provide a secondary lifting mechanism for assembling a trolley, which can solve the problem of measuring the groove position of the ultra-miniature bearing ring, and can effectively, accurately and quickly detect the groove position size of the ultra-miniature bearing ring.

According to the technical solution provided by the utility model: a secondary lifting mechanism for assembling a trolley, comprising a bottom mounting frame, the bottom mounting frame is connected to one end of the inner scissor arm, and the other end of the inner scissor arm is connected to the inner scissor arm connection The two ends of the inner scissor arm connecting shaft are connected to the inner scissor arm rolling wheel set, and the inner scissor arm rolling wheel set is located between the upper wheel set guide plate and the upper installation frame, and the upper installation frame is connected to the outer scissor arm. One end, the other end of the outer scissor arm is connected to the outer scissor arm connecting shaft, the two ends of the outer scissor arm connecting shaft are connected to the outer scissor arm rolling wheel set, and the outer scissor arm rolling wheel set is located at the lower wheel set guide plate and the Between the bottom installation frames, the inner scissor arm and the outer scissor arm are connected by an intermediate connecting shaft, a rail-lifting wheel set is installed on the inner scissor arm, and the inner scissor arm is connected to one end of the lifting link , the other end of the lifting link is fixed on the bottom mounting frame, the lifting pulley is set on the side of the lifting link, the middle of the outer scissor arm connecting shaft is connected to one end of the fixed arm, and the bottom surface of the other end of the fixed arm is set The fixing claw is adapted to the claw-type fixing pin provided on the bottom mounting frame.

As a further improvement of the present invention, the bottom mounting frame is connected to one end of the inner scissor arm through a bottom fulcrum assembly, and the bottom fulcrum assembly includes a bottom fixing block and a bottom mounting pin.

As a further improvement of the present invention, a wear-resistant guide block is installed between the inner scissor arm rolling wheel set and the upper installation frame.

As a further improvement of the present invention, the upper mounting frame is connected to one end of the outer scissor arm through an upper fulcrum assembly, and the upper fulcrum assembly includes an upper fixing block and an upper mounting pin.

As a further improvement of the present invention, a wear-resistant guide block is installed between the outer scissor arm rolling wheel set and the bottom installation frame.

As a further improvement of the present invention, the fixing claw includes a primary rail lifting fixing claw and a secondary rail lifting fixing claw, and the primary rail lifting fixing claw is located on the left side of the secondary rail lifting fixing claw.

As a further improvement of the present invention, a limit block is installed on the upper installation frame.

As a further improvement of the present invention, a maintenance rod is arranged between the bottom mounting frame and the upper mounting frame.

Compared with the prior art, the utility model has the following advantages:

1. The structure of the utility model is simple, and the lifting rail is used to lift the mechanism, which saves the cost of foundation construction.

2. The new model can not only reduce the installation space, but also increase the height.

Description of drawings

FIG. 1 is a schematic structural diagram of the utility model when it is closed.

FIG. 2 is a schematic structural diagram of the utility model when it is in a lifting state.

FIG. 3 is a schematic structural diagram of the utility model when it is in a secondary lifting state.

FIG. 4 is a schematic side view of the structure of the utility model.

FIG. 5 is a schematic structural diagram of the bottom mounting frame 1 in the present invention.

FIG. 6 is a schematic structural diagram of the middle and upper mounting frame 2 of the present invention.

FIG. 7 is a schematic structural diagram of the inner scissor arm 8 in the utility model.

FIG. 8 is a side view of FIG. 7 .

FIG. 9 is a schematic structural diagram of the middle and upper fulcrum assembly 3 of the present invention.

FIG. 10 is a side view of FIG. 9 .

FIG. 11 is a schematic structural diagram of the bottom fulcrum assembly 4 in the utility model.

FIG. 12 is a side view of FIG. 11 .

FIG. 13 is a schematic diagram of the structure of the lift connecting rod 10 in the present invention.

FIG. 14 is a schematic structural diagram of the fixing arm 11 in the present invention.

Description of reference numerals: bottom mounting frame 1, bottom fixing block mounting position 1-1, bottom wheel guide plate mounting screw hole 1-2, bottom wear-resistant guide block mounting screw hole 1-3, lifting link mounting position 1- 4. Claw type fixing pin 1-5, upper mounting frame 2, upper fixing block mounting position 2-1, upper wheel guide plate mounting screw hole 2-2, upper wear-resistant guide block mounting screw hole 2-3, upper fulcrum total 3. Upper fixing block 3-1, upper mounting pin 3-2, bottom fulcrum assembly 4, bottom fixing block 4-1, bottom mounting pin 4-2, intermediate connecting shaft 5, inner scissor arm rolling wheel set 6, Rail-lifting wheel set 7, inner scissor arm 8, bottom fixed end 8-1, rail-lifting wheel set mounting position 8-2, lifting link mounting hole 8-3, outer scissor arm 9, lifting link 10, inner Scissor arm connecting shaft 10-1, base plate mounting plate 10-2, lifting pulley 10-3, fixed arm 11, primary rail lifting fixing claw 11-1, secondary rail lifting fixing claw 11-2, outer scissor arm connecting shaft 12. Inner scissor arm connecting shaft 13, upper wheel guide plate 14, bottom wheel guide plate 15, wear-resistant guide block 16, limit block 17, primary rail lift 18, secondary rail lift 19, traveling trolley 20, external shear Arm rolling wheel set 21, maintenance rod 22.

Detailed ways

The present utility model will be further described below in conjunction with the specific drawings: as shown in accompanying drawing 1, the secondary lifting mechanism of the assembling trolley of the present utility model includes a bottom mounting frame 1, and the bottom mounting frame 1 passes through the bottom fulcrum on the left side. One end of 2 sets of inner scissor arms 8 is fixed in 4 pieces. The bottom fulcrum assembly 4 is shown in Figure 9. It consists of bottom fixing block 4-1, bottom mounting pin 4-2, bearing and fastening screw. The inner scissor arm 8 is as shown in Figure 9. As shown in Figure 7, including the bottom fixed end 8-1, the rail-lifting wheel set installation position 8-2 and the lifting link mounting hole 8-3, the bottom fixed end 8-1 of the inner scissor arm 8 passes through the bottom mounting pin 4- 2 is installed on the bottom fixing block 4-1 to realize the connection between the inner scissor arm 8 and the bottom mounting frame 1.

The other ends of the two sets of inner scissor arms 8 are connected by the inner scissor arm connecting shaft 13, and both ends of the inner scissor arm connecting shaft 13 are equipped with a set of inner scissor arm rolling wheel sets 6, and the upper wheel set guide plate 14 is connected to the upper wheel set by bolts The guide plate installation screw hole 2-2 is fixed on the right side of the upper installation frame 2, and the inner scissor arm rolling wheel set 6 is located between the upper wheel set guide plate 14 and the upper installation frame 2, and due to the limit of the bolts, it can only be placed on the upper wheel set guide plate. Roll back and forth within the lateral range between mounting screw holes 2-2. A wear-resistant guide block 16 is also installed between the inner scissor arm rolling wheel set 6 and the upper installation frame 2, and the wear-resistant guide block 16 is fixed on the upper installation frame 2 by bolting the upper wear-resistant guide block installation screw holes 2-3. It plays the role of reducing the wear of the upper mounting frame 2 .

An upper fixing block installation position 2-1 is provided on the left side of the upper mounting frame 2. As shown in FIG. 8, the upper fulcrum assembly 3 includes an upper fixing block 3-1, an upper mounting pin 3-2, a bearing, and the like. The upper fixing block 3-1 is installed on the upper fixing block installation position 2-1, and the upper mounting pin 3-2 connects one end of the outer scissor arm 9 to the upper fixing block 3-1, so as to realize the outer scissor arm 9 and the upper mounting frame 2 connections.

The other ends of the 2 sets of outer scissor arms 9 are connected by the outer scissor arm connecting shaft 12, the two ends of the outer scissor arm connecting shaft 12 are each equipped with a set of outer scissor arm rolling wheel sets 21, and the bottom wheel set guide plate 15 is connected to the bottom wheel set by bolts The guide plate mounting screw holes 1-2 are fixed on the right side of the bottom mounting frame 1, and the outer scissor arm rolling wheel set 21 is located between the bottom wheel set guide plate 15 and the bottom mounting frame 1, and due to the limit of the bolts, it can only be placed on the bottom wheel set guide plate. Roll back and forth in the lateral range between mounting screw holes 1-2. A wear-resistant guide block 16 is also installed between the outer scissor arm rolling wheel set 21 and the bottom installation frame 1, and the wear-resistant guide block 16 is fixed on the bottom installation frame 1 by bolting the bottom wear-resistant guide block installation screw holes 1-3. It plays the role of reducing the wear of the upper mounting frame 2 .

The inner scissor arm 8 and the outer scissor arm 9 are connected through an intermediate connecting shaft 5 . The rail-lifting wheel set installation positions 8-2 on the 2 sets of inner scissor arms 8 are each equipped with a rail-lifting wheel set 7.

As shown in FIG. 10 , the lift link 10 includes an inner scissor arm connecting shaft 10-1, a base plate mounting plate 10-2, and the like. The inner scissor arm 8 is installed with the inner scissor arm connecting shaft 10-1 through the lifting link mounting hole 8-3. The lifting link 10 is fixed on the bottom mounting frame 1 through the base plate mounting plate 10-2 and the bolt connection lifting link mounting position 1-4. A lifting pulley 10-3 is arranged on the side of the lifting link 10.

Two sets of fixed arms 11 are arranged in the middle of the outer scissor arm connecting shaft 12 . As shown in FIG. 11 , the bottom surface of the other end of the fixed arm 11 is provided with a fixing claw. The fixing claw includes a primary rail lifting fixing claw 11-1 and a secondary rail lifting fixing claw 11-2. The primary rail lifting fixing claw 11-1 is located in the second lifting rail. On the left side of the rail fixing claw 11-2, the fixing claw corresponds to the claw-shaped fixing pin 1-5 set on the bottom mounting frame 1. The fixing arm 11 can move to the left against the claw-shaped fixing pin 1-5, but when it moves to the left When the fixed claw is engaged with the claw-type fixed pins 1-5, the fixed arm 11 can only continue to move to the left but not to the right. A limit block 17 is also installed on the upper installation frame 2, which can keep a certain distance between the upper and lower installation frames. When the mechanism needs maintenance, the maintenance rod 22 is placed in the corresponding hole positions on the bottom mounting frame 1 and the upper mounting frame 2, and the mechanism is propped up, which is convenient for maintenance personnel to construct.

The secondary lifting mechanism of the entire assembly trolley is mounted on the traveling trolley 20 and travels with the trolley.

The specific installation and application of the utility model is as follows: As shown in FIG. 1 , in the initial state, the secondary lifting mechanism of the assembly trolley is in the closed state, and the upper installation frame 2 is limited by the limit block 17 . The lift table is in the lowest position. At this time, the inner scissor arm connecting shaft 13 is at the 2-2 position of the upper wheel guide plate installation screw hole at the right end, and the outer scissor arm connecting shaft 12 is at the right end. The bottom wheel guide plate installation screw hole 1-2 position, The fixed arm 11 installed in the middle of the outer scissor arm connecting shaft 12 is also located at the far right end of its travel range, and is farthest away from the claw-type fixed pins 1-5.

As shown in FIG. 2 , during the traveling process of the traveling trolley 20 , when the rail-lifting wheel set 7 on the inner scissor arm 8 runs to the position of the primary rail lift 18 , the front inner shear arm 8 is moved by the slope of the primary rail lift 18 . Lift up, the inner scissor arm 8 drives the outer scissor arm 9 to lift up through the intermediate connecting shaft 5 during the rising process, and the upper mounting frame 2 rises under the joint action of the inner and outer scissor arms. At this time, the inner scissor arm connecting shaft 13 is on the upper The wheel guide plate installation screw hole 2-2 is in the middle position, the outer scissor arm connecting shaft 12 is in the middle position of the lower wheel guide plate installation screw hole 1-2, and the fixed arm 11 installed in the middle of the outer scissor arm connecting shaft 12 is also located in its stroke range. At the middle end, the primary rail-lifting fixing claw 11-1 engages with the claw-type fixing pin 1-5. At this time, the upper mounting frame cannot be lowered, but can only be raised.

When the rail-lifting wheel set 7 is lifted to a certain position, the slope of the primary rail 18 cannot be raised. As shown in FIG. 3 , the lift pulley 10-3 on the lift link assembly 10 is lifted by the secondary lift rail 19 at this time. Carry out the second lift, when the second lift reaches the highest position, the inner scissor arm connecting shaft 13 is at the left position of the upper wheel guide mounting screw hole 2-2, and the outer scissor arm connecting shaft 12 is at the bottom wheel guide mounting screw hole 1 -2 On the left side, the fixed arm 11 installed in the middle of the outer scissor arm connecting shaft 12 is also located at the left end of its stroke range, and the secondary rail lifting fixing claw 11-2 engages with the claw-type fixing pin 1-5. The upper mounting frame cannot be lowered at this time.

After the assembly trolley operation is completed, lift the fixed arm 11 through the angle steel lifting rail, so that the secondary rail lifting fixing claw 11-2 on the fixed arm 11 is separated from the claw type fixing pin 1-5, and then the lifting mechanism is lowered in the reverse order. Complete a lift process.

Claims (8)

1. The utility model provides a secondary elevating system of assembly platform truck which characterized in that: the mechanism comprises a bottom mounting frame (1), wherein one end of an inner shearing arm (8) is connected with the bottom mounting frame (1), the other end of the inner shearing arm (8) is connected with an inner shearing arm connecting shaft (13), two ends of the inner shearing arm connecting shaft (13) are connected with an inner shearing arm rolling wheel set (6), the inner shearing arm rolling wheel set (6) is positioned between an upper wheel set guide plate (14) and an upper mounting frame (2), the upper mounting frame (2) is connected with one end of an outer shearing arm (9), the other end of the outer shearing arm (9) is connected with an outer shearing arm connecting shaft (12), two ends of the outer shearing arm connecting shaft (12) are connected with an outer shearing arm rolling wheel set (21), the outer shearing arm rolling wheel set (21) is positioned between a lower wheel set guide plate (15) and the bottom mounting frame (1), the inner shearing arm (8) is connected with the middle of the outer shearing arm (9) through a middle connecting shaft (5), install on interior scissor arm (8) and lift rail wheelset (7), connecting rod (10) one end is lifted in interior scissor arm (8) connection, it fixes on bottom installation frame (1) to lift connecting rod (10) other end, it sets up and lifts pulley (10-3) to lift connecting rod (10) side, outer scissor arm connecting axle (12) intermediate junction fixed arm (11) one end, fixed arm (11) other end bottom surface sets up the stationary dog, claw type fixed pin (1-5) adaptation that set up on stationary dog and bottom installation frame (1).

2. The secondary lifting mechanism of an assembly trolley according to claim 1, characterized in that: the bottom mounting frame (1) is connected with one end of an inner shear arm (8) through a bottom fulcrum assembly (4), and the bottom fulcrum assembly (4) comprises a bottom fixing block (4-1) and a bottom mounting pin (4-2).

3. The secondary lifting mechanism of an assembly trolley according to claim 1, characterized in that: and a wear-resistant guide block (16) is arranged between the inner shear arm rolling wheel set (6) and the upper mounting frame (2).

4. The secondary lifting mechanism of an assembly trolley according to claim 1, characterized in that: the upper mounting frame (2) is connected with one end of an outer shear arm (9) through an upper fulcrum assembly (3), and the upper fulcrum assembly (3) comprises an upper fixing block (3-1) and an upper mounting pin (3-2).

5. The secondary lifting mechanism of an assembly trolley according to claim 1, characterized in that: and a wear-resistant guide block (16) is arranged between the outer shear arm rolling wheel set (21) and the bottom mounting frame (1).

6. The secondary lifting mechanism of an assembly trolley according to claim 1, characterized in that: the fixed claws comprise a primary rail lifting fixed claw (11-1) and a secondary rail lifting fixed claw (11-2), and the primary rail lifting fixed claw (11-1) is positioned on the left side of the secondary rail lifting fixed claw (11-2).

7. The secondary lifting mechanism of an assembly trolley according to claim 1, characterized in that: and a limiting block (17) is arranged on the upper mounting frame (2).

8. The secondary lifting mechanism of an assembly trolley according to claim 1, characterized in that: a maintenance rod (22) is arranged between the bottom mounting frame (1) and the upper mounting frame (2).

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