Carrier capable of positioning large workpieces

Abstract

The invention discloses a carrier capable of positioning a large workpiece, and relates to the technical field of automobile assembly, the carrier comprises a movable chassis, a rotary armrest, a rotary armrest locking device and a positioning clamping device, the large workpiece is positioned by a positioning block, the large workpiece is clamped by a fixed positioning block and a rotary positioning block, and the movable chassis is pushed; according to the device, the carrying function and the assembling and positioning function are integrated, the handle is matched with a self-locking scheme, conversion of working postures of the device is achieved, meanwhile, damage and scratches of a large workpiece in the moving process can be reduced, and the working efficiency of the device is improved. The problems that the reject ratio of large workpieces is too high, and the production and manufacturing cost is increased are greatly solved, the labor intensity of workers can be reduced, and therefore the large workpiece assembling efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile assembly, and in particular to a transport vehicle capable of positioning large workpieces. Background Art

[0002] The automobile assembly production process often involves processes such as handling and assembly. The handling process refers to the process of transporting the assembled parts to the shipping vehicle or shipping equipment. When transporting and assembling large workpieces, they are often unable to reach the assembly posture when transported to the assembly location, and the posture needs to be adjusted manually. This is labor-intensive and poses a safety hazard. It is also easy to cause damage and scratches to the large workpieces.

[0003] When handling larger workpieces, existing robotic grippers require the assembly line to be stopped before they can clamp and pick up the workpieces. In addition, the large workpiece structure is wide and cannot be positioned in coordination with the assembly tooling vehicle. One operator of the robotic arm cannot take into account whether the clamps at both ends of the robotic arm are in place. In actual production, it is usually necessary to have more than two people operate the robotic arm together to handle large workpieces, which increases the cost of labor input and has low handling efficiency, and cannot meet the existing large workpiece handling needs.

[0004] The document (CN 221164852 U) discloses a multi-type workpiece conveying mechanism, which relates to the technical field of conveying mechanisms, including: a bracket, a slider is provided on the top of the bracket, a fixed bracket is provided on one side of the bracket, a connecting block is provided on one side of the bracket, and a connecting plate is provided on one side of the bracket; a positioning component provided between the bracket and the connecting plate, which is used for workpiece positioning detection; and a clamping component provided at the bottom of the connecting block and the connecting plate, which is used to clamp the workpiece. However, deviations are prone to 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. Existing handling equipment is facing more and more difficulties and urgently needs transformation and upgrading. Summary of the invention

[0005] In view of the problems existing in the prior art, the present invention conceives a transport vehicle capable of positioning large workpieces, realizes the conversion of assembly postures of large workpieces, integrates assembly positioning and transport functions, can reduce the labor intensity of personnel, and thus improve assembly efficiency.

[0006] The technical solution adopted to realize the present invention is: a transport vehicle capable of positioning large workpieces, characterized in that it comprises: a mobile chassis 1, a rotating armrest 2, a rotating armrest locking device 3 and a positioning clamping device 4, the mobile chassis 1 comprises: a universal wheel 1.1, a support frame 1.2 and a positioning block 1.3, the same universal wheels 1.1 are respectively arranged at the four corners of the bottom surface of the support frame 1.2, the support frame 1.2 is threadedly connected to the universal wheel 1.1, the same positioning blocks 1.3 are respectively arranged at the two front corners of the upper surface of the support frame 1.2, the support frame 1.2 and the positioning block 1.3 are threadedly connected to the four corners of the bottom surface of the support frame 1.2, and the same positioning blocks 1.3 are respectively arranged at the two front corners of the upper surface of the support frame 1.2. The rotating armrest 2 comprises: a handle 2.1, a rotating shaft 2.2, a support seat 2.3, a support shaft 2.4 and a support block 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 connecting line of the two identical positioning blocks 1.3. The support frame 1.2 is threadedly connected to the support seat 2.3. The two identical support seats 2.3 are fixedly connected to the support shaft 2.4. The shaft heads at both 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 They are respectively threadedly connected with the lower end of the handle 2.1, and support blocks 2.5 are respectively arranged at the two lower ends of the handle 2.1, and the axes of the two identical support seats 2.3 are parallel to the connecting line of the two identical support blocks 2.5, and the handle 2.1 is threadedly connected with the support blocks 2.5; a rotating armrest locking device 3 is arranged on the handle 2.1, and a positioning seat 3.10 of the locking device 3 is arranged on the support frame 1.2, and a hook 3.7 of the locking device 3 is hooked with the positioning seat 3.10; the positioning clamping device 4 includes: a support frame 4.1, a fixed positioning block 4.2, a rotating armrest locking device 3, and a fixed positioning block 4.3. A positioning block 4.3 and a manual clamp 4.4, a support frame 4.1 is arranged on the inner upper part of the handle 2.1, the support frame 4.1 is welded to the handle 2.1, a fixed positioning block 4.2 is arranged directly 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 arranged on the right side of the support frame 4.1, the manual clamp 4.4 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.

[0007] Furthermore, the rotating armrest 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, and the first clamping block 3.2 and the second clamping block 3.6 are connected to the handle 2.1 by bolts. A fixing seat 3.11 is arranged on the left side of the rear of the support frame 1.2, and the fixing seat 3.11 is fixedly connected to the support frame 1.2. A pull rod 3.1 is arranged inside the handle 2.1, and the pull rod 3.1 is arranged inside the handle 2.1. The rod 3.1 is hinged to the third connecting rod 3.5, one end of the first connecting rod 3.3 is hinged to the first clamping block 3.2, the second clamping block 3.6 is hinged to 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 to the third connecting rod 3.5 through a pin, and the hinge pin of the third connecting rod 3.5 is slidably connected with the long hole of the second connecting rod 3.4, the third connecting rod 3.5 is hinged to the hook 3.7, the second connecting rod 3.4 is hinged to the hook 3.7, the second clamping block 3.6 is hinged to the fourth connecting rod 3.8, the fourth connecting rod 3.8 is hinged to the fifth connecting rod 3.9, and the fifth connecting rod 3.9 is hinged to the fixed seat 3.11.

[0008] Furthermore, the universal wheel 1.1 is a Kaixin screw rod stainless steel 2-inch TPR silent universal caster.

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

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

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

[0012] Furthermore, the support frame 4.1 is welded from steel pipes.

[0013] The beneficial technical effects of the transport vehicle capable of positioning large workpieces of the present invention are as follows:

[0014] A transport vehicle capable of positioning large workpieces adopts a positioning block to position the large workpiece, a fixed positioning block and a rotating positioning block to clamp the large workpiece, and a mobile chassis is pushed. The universal wheels of the mobile chassis move to the workpiece assembly station to perform assembly operations. This device integrates the transport and assembly positioning functions, and the handle cooperates with the self-locking solution to realize the conversion of the working posture of the device. At the same time, it can reduce the damage and scratches of large workpieces during the movement process, greatly avoid the problems of excessively high unqualified rate and increased production and manufacturing costs, and can reduce the labor intensity of personnel, thereby improving assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A 3D view of a transport vehicle that can position large workpieces;

[0016] Figure 2 yes Figure 1 A magnified view in;

[0017] Figure 3 A 3D view from another angle of a transport vehicle that can locate large workpieces;

[0018] In the figure: 1. Mobile chassis, 1.1. Universal wheel, 1.2. Support frame, 1.3. Positioning block, 2. Rotating armrest, 2.1. Handle, 2.2. Rotating axis, 2.3. Support seat, 2.4. Support axis, 2.5. Support block, 3. Rotating armrest 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 is combined with Figures 1 to 3 The specific implementation manner will further describe the present invention in detail. To make the purpose, technical scheme and advantages of the implementation manner clearer, the technical scheme in the implementation manner will be clearly and completely described in combination with the embodiments of the present invention. The specific implementation manner described here is only used to explain the present invention and is not used to limit the scope of the present invention.

[0020] As attached Figure 1As shown, a transport vehicle capable of positioning large workpieces comprises: a mobile chassis 1, a rotating armrest 2, a rotating armrest locking device 3 and a positioning clamping device 4, the mobile chassis 1 comprises: a universal wheel 1.1, a support frame 1.2 and a positioning block 1.3, the same universal wheels 1.1 are respectively arranged at the four corners of the bottom surface of the support frame 1.2, the support frame 1.2 is threadedly connected with the universal wheel 1.1, the universal wheel 1.1 is a Kaixin screw rod stainless steel 2-inch TPR silent universal caster, the same positioning blocks 1.3 are respectively arranged at the two corners at the front end of the upper surface of the support frame 1.2, the support frame 1.2 is threadedly connected with the positioning block 1.3; the rotating armrest 2 comprises: a handle 2.1, a rotating shaft 2.2, a support seat 2.3, a support shaft 2.4 and a support block 2.5, two same 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 connecting line of the two identical positioning blocks 1.3, the support frame 1.2 is threadedly connected to the support seat 2.3, the two identical support seats 2.3 are fixedly connected to the support shaft 2.4, the two end shaft heads 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 ends of the handle 2.1, support blocks 2.5 are respectively arranged at the two lower ends of the handle 2.1, the axes of the two identical support seats 2.3 are parallel to the connecting line of the two identical support blocks 2.5, and the handle 2.1 is threadedly connected to the support block 2.5; a rotating armrest locking device 3 is arranged on the handle 2.1, a positioning seat 3.10 of the locking device 3 is arranged on the support frame 1.2, and a hook 3.7 of the locking device 3 is hooked with 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 arranged on the inner upper part of the handle 2.1, and the support frame 4.1 is welded to the handle 2.1. A fixed positioning block 4.2 is arranged directly in front of the support frame 4.1, and the support frame 4.1 is threadedly connected to the fixed positioning block 4.2. A manual clamp 4.4 is arranged on the right side of the support frame 4.1, and the manual clamp 4.4 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 model of the manual clamp 4.4 is 215-USS.

[0022] As attached Figure 3As shown, the rotating armrest 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, and the first clamping block 3.2 and the second clamping block 3.6 are connected to the handle 2.1 by bolts. A fixing seat 3.11 is arranged on the left side of the rear of the support frame 1.2, and the fixing seat 3.11 is fixedly connected to the support frame 1.2. A pull rod 3.1 is arranged inside the handle 2.1, and the pull rod 3.1 is hinged to the third connecting rod 3.5, one end of the first connecting rod 3.3 is hinged to the first clamping block 3.2, the second clamping block 3.6 is hinged to 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 to the third connecting rod 3.5 through a pin, and the hinge pin of the third connecting rod 3.5 is slidably connected with the long hole of the second connecting rod 3.4, the third connecting rod 3.5 is hinged to the hook 3.7, the second connecting rod 3.4 is hinged to the hook 3.7, the second clamping block 3.6 is hinged to the fourth connecting rod 3.8, the fourth connecting rod 3.8 is hinged to the fifth connecting rod 3.9, and the fifth connecting rod 3.9 is hinged to the fixing seat 3.11.

[0023] Working process of a transport vehicle capable of positioning large workpieces:

[0024] The operator pushes the handle 2.1, and the transport vehicle capable of positioning the large workpiece slides to the side of the large workpiece through the universal wheel 1.1, and lowers the manual clamp 4.4, which drives the rotating positioning block 4.3 to open, and uses the positioning block 1.3 to position the large workpiece, and presses the manual clamp 4.4, which drives the rotating positioning block 4.3, and the positioning block 4.3 and the fixed positioning block 4.2 clamp the large workpiece, and pushes the transport vehicle capable of positioning the large workpiece, so as to realize the transportation of the large workpiece and move the large workpiece to the workstation where the workpiece is assembled;

[0025] After the operator pushes the large workpiece to the workstation where the workpiece is assembled, the operator puts down the manual clamp 4.4, which drives the rotating positioning block 4.3 to open, lifts the pull rod 3.1, which drives the third connecting rod 3.5 to rotate, and the third connecting rod 3.5 drives the pin to slide in the long hole of the second connecting rod 3.4, and the second connecting rod 3.4 and the third connecting rod 3.5 move to make the hook 3.7 disengage from the positioning seat 3.10, rotate the handle 2.1, and the support block 2.5 rotates, driving the large workpiece to leave the positioning block 1.3, and 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, and the large workpiece reaches the assembly station and starts to be assembled; after the assembly is completed, the manual clamp 4.4 is pressed, and the manual clamp 4.4 drives the rotating positioning block 4.3, pushes the pull rod 3.1, and ensures that the hook 3.7 is hooked with the positioning seat 3.10, and the transport vehicle that can locate the large workpiece is reset, and the next handling work can be carried out.

[0026] The above is only a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A transport vehicle capable of positioning large workpieces, characterized in that it include: A movable chassis (1), a rotating armrest (2), a rotating armrest locking device (3) and a positioning clamping device (4), wherein the movable chassis (1) comprises: a universal wheel (1.1), a support frame (1.2) and a positioning block (1.3), wherein the same universal wheels (1.1) are respectively arranged at the four corners of the bottom surface of the support frame (1.2), the support frame (1.2) and the universal wheels (1.1) are threadedly connected, and the same positioning blocks (1.3) are respectively arranged at the two front corners of the upper surface of the support frame (1.2), and the support frame (1.2) and the positioning blocks (1.3) are threadedly connected; the rotating armrest (2) comprises: a handle (2.1), a rotating shaft (2. 2), a support seat (2.3), a support shaft (2.4) and a support block (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 connecting line of the two identical positioning blocks (1.3), the support frame (1.2) is threadedly connected to the support seat (2.3), the two identical support seats (2.3) are fixedly connected to the support shaft (2.4), the two end shaft heads 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), and the handle The two lower ends of the hand (2.1) are respectively provided with support blocks (2.5), the axes of the two identical support seats (2.3) are parallel to the connecting line of the two identical support blocks (2.5), and the handle (2.1) is threadedly connected to the support block (2.5); a rotating armrest 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), 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 hand A dynamic clamp (4.4), a support frame (4.1) is arranged 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 arranged directly 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 arranged on the right side of the support frame (4.1), the manual clamp (4.4) 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).

2. A transport vehicle capable of positioning large workpieces according to claim 1, characterized in that: The rotating armrest 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 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 connected to the handle (2.1) by bolts. A fixing seat (3.11) is arranged on the left side of the rear 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 connecting rod (3.5), one end of the first connecting rod (3.3) is hinged to the first clamping block (3.2), the second clamping block (3.6) is hinged to 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 to the third connecting rod (3.5) through a pin, and the hinge pin of the third connecting rod (3.5) is slidably connected to the long hole of the second connecting rod (3.4), the third connecting rod (3.5) is hinged to the hook (3.7), the second connecting rod (3.4) is hinged to the hook (3.7), the second clamping block (3.6) is hinged to the fourth connecting rod (3.8), the fourth connecting rod (3.8) is hinged to the fifth connecting rod (3.9), and the fifth connecting rod (3.9) is hinged to the fixed seat (3.11).

3. A transport vehicle capable of positioning large workpieces according to claim 1, characterized in that: The universal wheel (1.1) is a Kaixin screw rod stainless steel 2-inch TPR silent universal caster.

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

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

6. A transport vehicle capable of positioning large workpieces according to claim 1, characterized in that: The hook (3.7) is made of No. 45 steel.

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

Images