A carrier for positioning large workpieces

Abstract

The application discloses a carrier capable of positioning large workpieces and relates to the technical field of automobile assembly, which comprises a mobile chassis, a rotating handrail, a rotating handrail locking device and a positioning and clamping device. The positioning and clamping device is used for positioning large workpieces, clamping the large workpieces by fixing a positioning block and a rotating positioning block, pushing the mobile chassis, walking the universal wheels of the mobile chassis to an assembly workpiece station and performing assembly operation. The device integrates the functions of carrying and assembly positioning, adopts the scheme of handle cooperation and self-locking, realizes the conversion of the working posture of the device, can reduce the damage and scratches of the large workpieces during movement, greatly avoids the problems of excessively high unqualified rate of the large workpieces and rising production manufacturing cost, can reduce the labor intensity of personnel and thus improves the assembly efficiency of the large workpieces.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile assembly, in particular to a carrying vehicle capable of positioning large workpieces. BACKGROUND

[0002] In the automobile assembly production process, there are often handling, assembly and other processes. The handling process refers to the process of carrying the assembled parts to the delivery vehicle or delivery appliance. When handling and assembling large workpieces, the large workpieces often cannot reach the assembly posture when transported to the assembly position, and manual adjustment of the posture is required, which is labor-intensive and has safety hazards, and is also prone to damage and scratches to the large workpiece.

[0003] When handling large-sized workpieces, the existing mechanical hand needs to stop the assembly line before it can grip and take the workpiece. Moreover, the structure of large workpieces is wide and cannot be positioned with the assembly tool vehicle. One operating mechanical hand cannot ensure that the clamps at both ends of the mechanical hand are in place. In actual production, more than two people are usually required to operate the mechanical hand to handle large workpieces, resulting in an increase in labor costs and low handling efficiency, which cannot meet the existing large workpiece handling requirements.

[0004] Document (CN 221164852 U) discloses a multi-vehicle workpiece carrying mechanism, relating to the technical field of carrying mechanism, comprising: a support, a sliding block is arranged on the top of the support, a fixed support is arranged on one side of the support, a connecting block is arranged on one side of the support, and a connecting plate is arranged on one side of the support; a positioning assembly arranged between the support and the connecting plate for workpiece positioning detection; and a clamping assembly arranged between the connecting block and the bottom of the connecting plate for clamping the workpiece. However, deviation may occur when clamping the workpiece, and the position of the workpiece needs to be manually adjusted to accurately clamp the workpiece, which is troublesome and laborious. The existing handling equipment is facing more and more difficulties and needs to be upgraded. SUMMARY

[0005] The present application is aimed at the problems in the prior art and conceives a carrying vehicle capable of positioning large workpieces, which realizes the conversion of the assembly posture of large workpieces, integrates the assembly positioning and carrying functions, and can reduce the labor intensity of personnel, thereby improving the assembly efficiency.

[0006] The technical scheme adopted in the present application is: a carrier capable of positioning large workpieces, characterized in that it comprises a mobile chassis 1, a rotating handrail 2, a rotating handrail locking device 3 and a positioning clamping device 4, wherein the mobile chassis 1 comprises universal wheels 1.1, a support frame 1.2 and positioning blocks 1.3, the same universal wheels 1.1 are arranged at the four corners of the lower surface of the support frame 1.2, the support frame 1.2 is threadedly connected with the universal wheels 1.1, the same positioning blocks 1.3 are arranged at the two corners of the upper surface of the support frame 1.2, and the support frame 1.2 is threadedly connected with the positioning blocks 1.3; the rotating handrail 2 comprises handles 2.1, rotating shafts 2.2, support seats 2.3, support shafts 2.4 and support blocks 2.5, two identical support seats 2.3 are arranged at the front end of the upper surface of the support frame 1.2, the axes of the two identical support seats 2.3 are parallel to the line connecting the two identical positioning blocks 1.3, the support frame 1.2 is threadedly connected with the support seats 2.3, the two identical support seats 2.3 are fixedly connected with the support shafts 2.4, the two ends of the support shafts 2.4 are connected with the rotating shafts 2.2 through bearings, the two lower ends of the handles 2.1 are threadedly connected with the rotating shafts 2.2, and the support blocks 2.5 are arranged at the two lower ends of the handles 2.1, the axes of the two identical support seats 2.3 are parallel to the line connecting the two identical support blocks 2.5, and the handles 2.1 are threadedly connected with the support blocks 2.5; the rotating handrail locking device 3 is arranged on the handle 2.1, the positioning seat 3.10 of the locking device 3 is arranged on the support frame 1.2, and the hook 3.7 of the locking device 3 is hooked with the positioning seat 3.10; the positioning clamping device 4 comprises a support frame 4.1, a fixed positioning block 4.2, a rotating positioning block 4.3 and a manual clamp 4.4, the support frame 4.1 is arranged on the inner side of the upper part of the handle 2.1 and is welded with the handle 2.1, the fixed positioning block 4.2 is arranged in front of the support frame 4.1, the support frame 4.1 is threadedly connected with the fixed positioning block 4.2, the manual clamp 4.4 is arranged on the right side of the support frame 4.1 and is threadedly connected with the support frame 4.1, the rotating positioning block 4.3 is arranged opposite to the fixed positioning block 4.2, and the rotating arm of the rotating positioning block 4.3 is fixedly connected with the rotating arm of the manual clamp 4.4.

[0007] Further, the rotating handrail locking device 3 comprises a pull rod 3.1, a first clamping block 3.2, a first connecting rod 3.3, a second connecting rod 3.4, a third connecting rod 3.5, a second clamping block 3.6, a hook 3.7, a fourth connecting rod 3.8, a fifth connecting rod 3.9, a positioning seat 3.10 and a fixing seat 3.11, the first clamping block 3.2 and the second clamping block 3.6 are arranged on the left side of the handle 2.1 from top to bottom, the first clamping block 3.2 and the second clamping block 3.6 are connected with the handle 2.1 through bolts, the fixing seat 3.11 is arranged on the left side of the rear of the supporting frame 1.2, the fixing seat 3.11 is fixedly connected with the supporting frame 1.2, the pull rod 3.1 is arranged in the handle 2.1, the pull rod 3.1 is hinged with the third connecting rod 3.5, one end of the first connecting rod 3.3 is hinged with the first clamping block 3.2, the second clamping block 3.6 is hinged with the hook 3.7, a long hole is arranged on one end of the second connecting rod 3.4, the other end of the first connecting rod 3.3 is hinged with the third connecting rod 3.5 through a pin shaft, the pin shaft hinged with the third connecting rod 3.5 is connected with the long hole of the second connecting rod 3.4 in a sliding fit, the third connecting rod 3.5 is hinged with the hook 3.7, the second connecting rod 3.4 is hinged with the hook 3.7, the second clamping block 3.6 is hinged with the fourth connecting rod 3.8, the fourth connecting rod 3.8 is hinged with the fifth connecting rod 3.9, and the fifth connecting rod 3.9 is hinged with the fixing seat 3.11.

[0008] Further, the universal wheel 1.1 is a Kaisen screw stainless steel 2-inch TPR silent universal wheel.

[0009] Further, the manual clamp 4.4 is a model 215-USS.

[0010] Further, the positioning block 1.3 is made of 45 steel.

[0011] Further, the hook 3.7 is made of 45 steel.

[0012] Further, the supporting frame 4.1 is welded by a steel pipe.

[0013] The beneficial technical effects of the carrying vehicle capable of positioning large workpieces are embodied in that:

[0014] The carrying vehicle capable of positioning large workpieces adopts a positioning block to position a large workpiece, a fixed positioning block and a rotating positioning block to clamp the large workpiece, and a moving chassis is pushed to move the universal wheels of the moving chassis to an assembly work station to perform assembly operation. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a three-dimensional view of a carrier capable of positioning large workpieces;

[0016] Figure 2 is Figure 1 is an enlarged view of A in

[0017] Figure 3 is a three-dimensional view of a carrier capable of positioning large workpieces from another angle;

[0018] In the figure: 1. moving chassis, 1.1. universal wheel, 1.2. support frame, 1.3. positioning block, 2. rotating handrail, 2.1. handle, 2.2. rotating shaft, 2.3. support seat, 2.4. support shaft, 2.5. support block, 3. rotating handrail locking device, 3.1. pull rod, 3.2. first clamping block, 3.3. first connecting rod, 3.4. second connecting rod, 3.5. third connecting rod, 3.6. second clamping block, 3.7. hook, 3.8. fourth connecting rod, 3.9. fifth connecting rod, 3.10. positioning seat, 3.11. fixed seat, 4. positioning clamping device, 4.1. support frame, 4.2. fixed positioning block, 4.3. rotating positioning block, 4.4. manual clamp. DETAILED DESCRIPTION

[0019] The following will be described in detail in combination with the accompanying Figures 1 to 3 DETAILED DESCRIPTION, in order to make the purpose, technical scheme and advantages of the embodiments clearer, the technical scheme in the embodiments will be clearly and completely described in combination with the embodiments of the present application, the specific embodiments described herein are only used to explain the present application, and are not used to limit the scope of the present application.

[0020] As shown in the accompanying Figure 1As shown, a transport vehicle capable of positioning large workpieces includes: a mobile chassis 1, a rotating handle 2, a rotating handle locking device 3, and a positioning clamping device 4. The mobile chassis 1 includes: casters 1.1, a support frame 1.2, and positioning blocks 1.3. Identical casters 1.1 are respectively installed at the four corners of the lower surface of the support frame 1.2, and the support frame 1.2 is threadedly connected to the casters 1.1. The casters 1.1 are 2-inch TPR silent swivel casters with stainless steel screws from Kexin. Identical positioning blocks 1.3 are respectively installed at the two front corners of the upper surface of the support frame 1.2, and the support frame 1.2 is threadedly connected to the positioning blocks 1.3. The rotating handle 2 includes: a handle 2.1, a rotating shaft 2.2, a support base 2.3, a support shaft 2.4, and a support block 2.5. Two identical support bases 2.3 are installed at the front end of the upper surface of the support frame 1.2. The axes of the two identical support seats 2.3 are parallel to the line connecting the two identical positioning blocks 1.3. The support frame 1.2 is threadedly connected to the support seats 2.3. The two identical support seats 2.3 are fixedly connected to the support shaft 2.4. The two ends of the support shaft 2.4 are respectively connected to the rotating shaft 2.2 through bearings. The two identical rotating shafts 2.2 are respectively threadedly connected to the lower end of the handle 2.1. Support blocks 2.5 are respectively provided at the two lower ends of the handle 2.1. The axes of the two identical support seats 2.3 are parallel to the line connecting the two identical support blocks 2.5. The handle 2.1 is threadedly connected to the support blocks 2.5. A rotating handrail locking device 3 is provided on the handle 2.1. The positioning seat 3.10 of the locking device 3 is provided on the support frame 1.2. The hook 3.7 of the locking device 3 is hooked to the positioning seat 3.10.

[0021] As attached Figure 2 As shown, the positioning and clamping device 4 includes: a support frame 4.1, a fixed positioning block 4.2, a rotating positioning block 4.3, and a manual clamp 4.4. The support frame 4.1 is provided on the upper inner side of the handle 2.1 and is welded to the handle 2.1. The fixed positioning block 4.2 is provided in front of the support frame 4.1 and is threadedly connected to the support frame 4.1. The manual clamp 4.4 is provided on the right side of the support frame 4.1 and is threadedly connected to the support frame 4.1. The rotating positioning block 4.3 is arranged opposite to the fixed positioning block 4.2, and the rotating arm of the rotating positioning block 4.3 is fixedly connected to the rotating arm of the manual clamp 4.4. The manual clamp 4.4 is model 215-USS.

[0022] As attached Figure 3As shown, the rotating handrail locking device 3 comprises a pull rod 3.1, a first clamping block 3.2, a first connecting rod 3.3, a second connecting rod 3.4, a third connecting rod 3.5, a second clamping block 3.6, a hook 3.7, a fourth connecting rod 3.8, a fifth connecting rod 3.9, a positioning seat 3.10 and a fixed seat 3.11. The first clamping block 3.2 and the second clamping block 3.6 are arranged on the left side of the handle 2.1 from top to bottom, and are connected with the handle 2.1 by bolts. The fixed seat 3.11 is arranged on the left side of the rear of the support frame 1.2, and is fixedly connected with the support frame 1.2. The pull rod 3.1 is arranged inside the handle 2.1, and is hinged with the third connecting rod 3.5. One end of the first connecting rod 3.3 is hinged with the first clamping block 3.2. The second clamping block 3.6 is hinged with the hook 3.7. A long hole is arranged on one end of the second connecting rod 3.4. The other end of the first connecting rod 3.3 is hinged with the third connecting rod 3.5 through a pin shaft, and the hinged pin shaft of the third connecting rod 3.5 is slidingly connected with the long hole of the second connecting rod 3.4. The third connecting rod 3.5 is hinged with the hook 3.7. The second connecting rod 3.4 is hinged with the hook 3.7. The second clamping block 3.6 is hinged with the fourth connecting rod 3.8. The fourth connecting rod 3.8 is hinged with the fifth connecting rod 3.9. The fifth connecting rod 3.9 is hinged with the fixed seat 3.11.

[0023] A working process of the movable trolley for positioning large workpieces:

[0024] The operator pushes the handle 2.1, and the movable trolley for positioning large workpieces slides to the side of the large workpiece through the universal wheels 1.1. The hand-operated clamp 4.4 is lowered, and the hand-operated clamp 4.4 drives the rotating positioning block 4.3 to open. The positioning block 1.3 is used to position the large workpiece. The hand-operated clamp 4.4 is pressed, and the hand-operated clamp 4.4 drives the rotating positioning block 4.3. The positioning block 4.3 and the fixed positioning block 4.2 clamp the large workpiece. The movable trolley for positioning large workpieces is pushed, and the large workpiece is transported to the work station for assembling workpieces.

[0025] After the operator pushes the large workpiece to the work station for assembling the workpiece, the manual clamp 4.4 is released, the manual clamp 4.4 drives the rotary positioning block 4.3 to open, the pull rod 3.1 is lifted, the third connecting rod 3.5 is rotated, the third connecting rod 3.5 drives the pin shaft to slide in the long hole of the second connecting rod 3.4, the movement of the second connecting rod 3.4 and the third connecting rod 3.5 makes the hook 3.7 disengage from the positioning seat 3.10, the rotary handle 2.1 is rotated, the supporting block 2.5 is rotated, the large workpiece is driven to leave the positioning block 1.3, the fourth connecting rod 3.8 and the fifth connecting rod 3.9 ensure that the rotation angle of the vehicle is not out of position, the large workpiece reaches the assembly work station, and the assembly is started; after the assembly is completed, the manual clamp 4.4 is pressed, the manual clamp 4.4 drives the rotary positioning block 4.3, the pull rod 3.1 is pushed, and the hook 3.7 is hooked tightly with the positioning seat 3.10, so that the carrier for positioning the large workpiece is reset, and the next carrying work can be performed.

[0026] The above is only the preferred mode of the present application, and it should be noted that those skilled in the art can make several improvements and refinements without departing from the principles of the present application, and these improvements and refinements should also be considered within the scope of protection of the present application.

Claims

1. A transport vehicle capable of positioning large workpieces, characterized in that it include: The mobile chassis (1), rotating handrail (2), rotating handrail locking device (3), and positioning clamping device (4) are provided. The mobile chassis (1) includes: casters (1.1), support frame (1.2), and positioning blocks (1.3). The same casters (1.1) are respectively provided at the four corners of the bottom surface of the support frame (1.2). The support frame (1.2) is threadedly connected to the casters (1.1). The same positioning blocks (1.3) are respectively provided at the two front corners of the upper surface of the support frame (1.2). The support frame (1.2) is threadedly connected to the positioning blocks (1.3). The rotating handrail (2) includes: handle (2.1) and rotating shaft (2.3). 2) Support base (2.3), support shaft (2.4), and support block (2.5): Two identical support bases (2.3) are provided at the front end of the upper surface of the support frame (1.2). The axes of the two identical support bases (2.3) are parallel to the line connecting the two identical positioning blocks (1.3). The support frame (1.2) is threadedly connected to the support bases (2.3). The two identical support bases (2.3) are fixedly connected to the support shaft (2.4). The two ends of the support shaft (2.4) are respectively connected to the rotating shaft (2.2) through bearings. The two identical rotating shafts (2.2) are respectively threadedly connected to the lower end of the handle (2.1). Support blocks (2.5) are respectively provided at the two lower ends of the handle (2.1). The axes of the two identical support seats (2.3) are parallel to the line connecting the two identical support blocks (2.5). The handle (2.1) is threadedly connected to the support blocks (2.5). A rotating handrail locking device (3) is provided on the handle (2.1). The positioning seat (3.10) of the locking device (3) is set on the support frame (1.2). The hook (3.7) of the locking device (3) is hooked to the positioning seat (3.10). The positioning clamping device (4) includes: a support frame (4.1), a fixed positioning block (4.2), a rotating positioning block (4.3), and a handle. A movable clamp (4.4) is provided with a support frame (4.1) on the upper inner side of the handle (2.1). The support frame (4.1) is welded to the handle (2.1). A fixed positioning block (4.2) is provided in front of the support frame (4.1). The support frame (4.1) is threadedly connected to the fixed positioning block (4.2). A manual clamp (4.4) is provided on the right side of the support frame (4.1). The manual clamp (4.4) is threadedly connected to the support frame (4.1). A rotating positioning block (4.3) is arranged opposite to the fixed positioning block (4.2). The rotating arm of the rotating positioning block (4.3) is fixedly connected to the rotating arm of the manual clamp (4.4).

2. The transport vehicle for positioning large workpieces according to claim 1, characterized in that, The rotating handrail locking device (3) includes: a pull rod (3.1), a first clamping block (3.2), a first connecting rod (3.3), a second connecting rod (3.4), a third connecting rod (3.5), a second clamping block (3.6), a hook (3.7), a fourth connecting rod (3.8), a fifth connecting rod (3.9), a positioning seat (3.10), and a fixing seat (3.11). The first clamping block (3.2) and the second clamping block (3.6) are respectively arranged from top to bottom on the left side of the handle (2.1). The first clamping block (3.2) and the second clamping block (3.6) are bolted to the handle (2.1). A fixing seat (3.11) is arranged on the left rear part of the support frame (1.2). The fixing seat (3.11) is fixedly connected to the support frame (1.2). The pull rod (3.1) is arranged inside the handle (2.1). The pull rod (3.1) is hinged to the third link (3.5), one end of the first link (3.3) is hinged to the first clamping block (3.2), the second clamping block (3.6) is hinged to the hook (3.7), an elongated hole is provided at one end of the second link (3.4), the other end of the first link (3.3) is hinged to the third link (3.5) by a pin, the pin of the third link (3.5) is slidably connected to the elongated hole of the second link (3.4), the third link (3.5) is hinged to the hook (3.7), the second link (3.4) is hinged to the hook (3.7), the second clamping block (3.6) is hinged to the fourth link (3.8), the fourth link (3.8) is hinged to the fifth link (3.9), and the fifth link (3.9) is hinged to the fixed seat (3.11).

3. The transport vehicle for positioning large workpieces according to claim 1, characterized in that, The aforementioned caster wheel (1.1) is a 2-inch TPR silent caster wheel made of stainless steel with a screw rod from Kaixin.

4. The transport vehicle for positioning large workpieces according to claim 1, characterized in that, The manual clamp (4.4) mentioned is model 215-USS.

5. A transport vehicle for positioning large workpieces according to claim 1, characterized in that, The positioning block (1.3) is made of 45 steel.

6. A transport vehicle for positioning large workpieces according to claim 1, characterized in that, The hook (3.7) is made of 45 steel.

7. A transport vehicle for positioning large workpieces according to claim 1, characterized in that, The support frame (4.1) is welded from steel pipes.

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