Quick-change trolley positioning device

Abstract

The utility model provides a quick-change trolley positioning device which is characterized in that two concave positioning mechanisms are arranged at the upper end of a main bottom plate in a bilateral symmetry mode, two convex positioning mechanisms are arranged on the inner sides of the concave positioning mechanisms in a bilateral symmetry mode, and each concave positioning mechanism comprises a large angle seat and a concave limiting block; the air cylinder positioning and clamping mechanisms are arranged between the concave positioning mechanism and the convex positioning mechanism in a bilateral symmetry mode, the convex positioning mechanism comprises a connecting block, the connecting block is fixedly connected with the convex positioning mechanism in a matched mode through a concave-convex structure, and two manual valves are arranged on the outer side of the concave positioning mechanism. The two manual valves control air inlet and air outlet of the pressing arm air cylinder and the positioning pin air cylinder respectively, during air inlet, the positioning pin stretches out to be positioned with a pin hole block of the concave positioning mechanism, the pressing arm clamps the pin hole block, and fixed positioning is achieved. During exhausting, the positioning pin descends, the pressing arm is opened, and the quick-change trolley can be pushed out for replacement; the quick-change trolley is exquisite in design and simple and convenient in processing flow, and the quick-change trolley is quick in switching operation.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle production and manufacturing, in particular to a quick-change trolley positioning device. Background Art

[0002] In the automotive manufacturing industry, the welding of automotive parts is an extremely critical part of the production process. The application of spot welding robots improves production efficiency and welding quality.

[0003] In actual operation, due to the wide variety of automobiles and the different shapes of parts required for each model, parts of different shapes need to be frequently replaced for welding during the processing process. In order to ensure the precise position of the welding part, high positional accuracy is required for the parts to be welded.

[0004] To improve efficiency, it is currently common to install casters at the bottom of the fixture that loads parts, so that the fixture can be quickly moved and parts can be replaced. However, factors such as the degree of wear of the caster tires and the flatness of the ground may affect the height of the fixture, which in turn has an adverse effect on the positional accuracy of the welding part. In this case, some parts may be scrapped due to substandard welding quality, resulting in a decrease in the overall yield rate. Summary of the invention

[0005] The utility model aims to provide a quick-change trolley positioning device.

[0006] In order to achieve the above purpose, the technical solution of the utility model is:

[0007] A quick-change trolley positioning device, characterized in that it comprises a concave positioning mechanism, a cylinder positioning clamping mechanism, a convex positioning mechanism and a main bottom plate, two concave positioning mechanisms are symmetrically arranged at the upper end of the main bottom plate, two convex positioning mechanisms are symmetrically arranged at the rear side of the concave positioning mechanism, and two cylinder positioning clamping mechanisms are symmetrically arranged between the concave positioning mechanism and the convex positioning mechanism.

[0008] The convex positioning mechanism comprises a connecting block, the connecting block is fixedly connected to the convex positioning mechanism through a concave-convex structure, an adapter plate is fixedly provided at the front end of the connecting block, and a pin hole block is fixedly provided at the front end of the adapter plate.

[0009] The cylinder positioning clamping mechanism comprises a pressure arm, a pressure arm connecting block, a positioning pin, a pressure arm cylinder, a positioning pin cylinder and a block column. The pressure arm connecting block, the pressure arm cylinder, the positioning pin cylinder and the block column are fixed on the main base plate. The pressure arm is rotatably connected to the cylinder shaft of the pressure arm cylinder. The cylinder shaft of the pressure arm cylinder controls the pressure arm to rotate around the pressure arm connecting block. The positioning pin is fixedly connected to the cylinder shaft of the positioning pin cylinder. The positioning pin cylinder controls the positioning pin to move up and down. A block is fixedly provided on the upper end of the block column. The pressure arm and the block respectively limit the upper and lower ends of the pin hole block. The positioning pin passes through the pin hole block and the block up and down.

[0010] Two manual valves are arranged on the outer side of the concave positioning mechanism, and the two manual valves respectively control the air intake and exhaust of the pressure arm cylinder and the positioning pin cylinder.

[0011] Furthermore, a wire groove is provided between the two concave positioning mechanisms, and the wire groove is installed at the upper end of the main base plate along the left-right direction, and the wire groove is located at the front side of the cylinder positioning clamping mechanism.

[0012] Furthermore, the pressure arm connecting block, the pressure arm cylinder, the positioning pin cylinder and the stopper column are all fixed on the bottom plate angle seat, and the bottom plate angle seat is fixedly connected to the main bottom plate.

[0013] Furthermore, protective covers are provided on the outer sides of the pressure arm cylinder and the positioning pin cylinder.

[0014] Furthermore, the connecting block is installed on the quick-change trolley, and L-shaped adjustment blocks are provided at the lower ends of both sides of the connecting block. By adding or reducing gaskets to the adapter plate and the adjustment block, the convex positioning mechanism can be adjusted in three dimensions.

[0015] The utility model controls the air intake and exhaust of the cylinder positioning clamping mechanism through a manual valve. When air is taken in, the positioning pin extends out and is positioned with the pin hole block of the concave positioning mechanism, and the pressure arm clamps the pin hole block to achieve fixed positioning; when air is exhausted, the positioning pin descends, and the pressure arm opens, so that the quick-change trolley can be pushed out for replacement.

[0016] The utility model has exquisite design, simple processing flow and rapid switching operation of the quick-change trolley. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the convex positioning mechanism of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the concave positioning mechanism of the utility model;

[0020] Figure 4It is a structural schematic diagram of the cylinder positioning clamping mechanism of the utility model.

[0021] Reference numerals:

[0022] 1 concave positioning mechanism, 2 cylinder positioning clamping mechanism, 3 convex positioning mechanism, 4 manual valve, 5 main base plate,

[0023] 6 wire slot, 7 V-type limit block, 8 connection block, 9 adapter plate, 10 pin hole block, 11 adjustment block,

[0024] 12 concave limit block, 13 large angle seat, 14 pressure arm, 15 pressure arm connecting block, 16 positioning pin,

[0025] 17 arm pressure cylinder, 18 positioning pin cylinder, 19 shield, 20 bottom plate angle seat, 21 stopper, 22 stopper column. DETAILED DESCRIPTION

[0026] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The utility model discloses a quick-change trolley positioning device, such as Figure 1 As shown, it includes a concave positioning mechanism 1, a cylinder positioning clamping mechanism 2, a convex positioning mechanism 3 and a main base plate 5. Two concave positioning mechanisms 1 are symmetrically arranged at the upper end of the main base plate 5, two convex positioning mechanisms 3 are symmetrically arranged at the rear side of the concave positioning mechanism 1, and two cylinder positioning clamping mechanisms 2 are symmetrically arranged between the concave positioning mechanism 1 and the convex positioning mechanism 3.

[0028] like Figure 3 As shown, the concave positioning mechanism 1 includes a large angle seat 13 and a concave limit block 12. The large angle seat 13 is fixedly connected to the main base plate 5. The concave limit block 12 is fixed to the rear side of the upper end of the large angle seat 13. A wire groove 6 is provided between the two concave positioning mechanisms 1. The wire groove 6 is installed on the upper end of the main base plate 5 along the left and right directions. The cylinder positioning and clamping mechanism 2 is symmetrically arranged on the rear side of the wire groove 6. The wire groove 6 is used for routing various air pipes and electrical wires.

[0029] like Figure 2As shown, the convex positioning mechanism 3 includes a V-shaped limit block 7, which is installed at the upper end of one side of the connecting block 8. The V-shaped limit block 7 is fixedly connected with the concave limit block 12. An adapter plate 9 is fixedly provided on the other side of the connecting block 8, and a pin hole block 10 is fixedly provided on the adapter plate 9. When in use, the connecting block 8 is installed on the quick-change trolley, and L-shaped adjustment blocks 11 are provided at the lower ends of both sides of the connecting block 8. By adding or reducing gaskets to the adapter plate 9 and the adjustment block 11, three-dimensional adjustment of the convex positioning mechanism 3 on the quick-change trolley can be achieved.

[0030] like Figure 4 As shown, the cylinder positioning and clamping mechanism 2 includes a pressing arm 14, a pressing arm connecting block 15, a locating pin 16, a pressing arm cylinder 17, a locating pin cylinder 18 and a block column 22. The pressing arm connecting block 15, the pressing arm cylinder 17, the locating pin cylinder 18 and the block column 22 are fixed on the main base plate 5. The pressing arm 14 is rotatably connected to the cylinder shaft of the pressing arm cylinder 17. The cylinder shaft of the pressing arm cylinder 17 controls the pressing arm 14 to rotate around the pressing arm connecting block 15. The locating pin 16 is fixedly connected to the cylinder shaft of the locating pin cylinder 18. The locating pin cylinder 18 controls the locating pin 16 to move up and down. A block 21 is fixedly provided on the upper end of the block column 22. The pressing arm 14 and the block 21 respectively limit the upper and lower ends of the pin hole block 10. The locating pin 16 passes through the pin hole block 10 and the block 21 up and down.

[0031] The pressure arm connecting block 15, the pressure arm cylinder 17, the positioning pin cylinder 18 and the stopper column 22 are all fixed on the base plate angle seat 20, and the base plate angle seat 20 is fixedly connected to the main base plate 5. A protective cover 19 is provided on the outside of the pressure arm cylinder 17 and the positioning pin cylinder 18 to prevent collision due to misoperation.

[0032] Two manual valves 4 are provided on the outer side of the concave positioning mechanism 1, one manual valve 4 controls the air intake of the pressure arm cylinder 17 and the positioning pin cylinder 18, and the other manual valve 4 controls the exhaust of the pressure arm cylinder 17 and the positioning pin cylinder 18. When air is taken in, the cylinder shaft of the positioning pin cylinder 18 is pushed out, so that the positioning pin 16 extends out and is positioned with the pin hole block 10, and the cylinder shaft of the pressure arm cylinder 17 is pushed out, and the pressure arm 14 rotates clockwise to press the upper end of the pin hole block 10 to achieve fixed positioning;

[0033] When exhausting, the cylinder shafts of the positioning pin cylinder 18 and the pressure arm cylinder 17 are all retracted, the positioning pin 16 is lowered, and the pressure arm 14 is rotated counterclockwise to open, and the quick-change trolley can be pushed out for replacement.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A quick-change trolley positioning device, characterized in that: The invention comprises a concave positioning mechanism (1), a cylinder positioning clamping mechanism (2), a convex positioning mechanism (3) and a main base plate (5), wherein two concave positioning mechanisms (1) are symmetrically arranged at the upper end of the main base plate (5), two convex positioning mechanisms (3) are symmetrically arranged at the rear side of the concave positioning mechanism (1), and two cylinder positioning clamping mechanisms (2) are symmetrically arranged between the concave positioning mechanism (1) and the convex positioning mechanism (3). The convex positioning mechanism (3) comprises a connecting block (8), the connecting block (8) being fixedly connected to the convex positioning mechanism (3) by means of a concave-convex structure, an adapter plate (9) being fixedly provided at the front end of the connecting block (8), and a pin hole block (10) being fixedly provided at the front end of the adapter plate (9). The cylinder positioning clamping mechanism (2) comprises a pressure arm (14), a pressure arm connecting block (15), a positioning pin (16), a pressure arm cylinder (17), a positioning pin cylinder (18) and a stopper column (22); the pressure arm connecting block (15), the pressure arm cylinder (17), the positioning pin cylinder (18) and the stopper column (22) are fixed on the main base plate (5); the pressure arm (14) is rotatably connected to the cylinder shaft of the pressure arm cylinder (17); the cylinder shaft of the pressure arm cylinder (17) The pressure arm (14) is controlled to rotate around the pressure arm connecting block (15); the positioning pin (16) is fixedly connected to the cylinder shaft of the positioning pin cylinder (18); the positioning pin cylinder (18) controls the positioning pin (16) to move up and down; a stopper (21) is fixedly provided at the upper end of the stopper column (22); the pressure arm (14) and the stopper (21) respectively limit the upper end and the lower end of the pin hole block (10); the positioning pin (16) passes through the pin hole block (10) and the stopper (21) from top to bottom; Two manual valves (4) are provided on the outer side of the concave positioning mechanism (1), and the two manual valves (4) respectively control the air intake and exhaust of the pressure arm cylinder (17) and the positioning pin cylinder (18).

2. The quick-change trolley positioning device according to claim 1, characterized in that: The concave positioning mechanism (1) comprises a large angle seat (13) and a concave stop block (12); the large angle seat (13) is fixedly connected to the main base plate (5); the concave stop block (12) is fixed to the rear side of the upper end of the large angle seat (13); a V-shaped stop block (7) is provided at the upper end of one side of the connecting block (8); the V-shaped stop block (7) is fixedly connected to the concave stop block (12) in cooperation.

3. The quick-change trolley positioning device according to claim 2, characterized in that: A wire groove (6) is provided between the two concave positioning mechanisms (1), the wire groove (6) being installed at the upper end of the main base plate (5) in the left-right direction, and the wire groove (6) being located at the front side of the cylinder positioning clamping mechanism (2).

4. The quick-change trolley positioning device according to claim 1, characterized in that: The pressure arm connecting block (15), the pressure arm cylinder (17), the positioning pin cylinder (18) and the stopper column (22) are all fixed on the bottom plate angle seat (20), and the bottom plate angle seat (20) is fixedly connected to the main bottom plate (5).

5. The quick-change trolley positioning device according to claim 1, characterized in that: Protective covers (19) are provided on the outer sides of the pressure arm cylinder (17) and the positioning pin cylinder (18).

6. The quick-change trolley positioning device according to claim 1, characterized in that: The connecting block (8) is mounted on a quick-change trolley, and L-shaped adjustment blocks (11) are provided at the lower ends of both sides of the connecting block (8). By adding or removing gaskets to the adapter plate (9) and the adjustment block (11), the convex positioning mechanism (3) can be adjusted in three dimensions.

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