Special fixture for coating multi-axle frame on automobile assembly line

Abstract

The utility model discloses a special fixture for coating a multi-axle frame on an automobile assembly line, which relates to the technical field of frame coating and comprises a fixed base and a worktable, the worktable is arranged above the fixed base, baffles are fixedly mounted on two sides of the upper surface of the worktable, a moving component is arranged on the upper surface of the fixed base, and a fixture component is arranged on the upper surface of the worktable. According to the utility model, the plurality of mounting tables are arranged on one side of the outer surface of the baffle plate, the triangular clamping heads are arranged on the two sides of the mounting tables, after the frame is placed above the placing plate, the plurality of triangular clamping heads can be operated to fixedly clamp the frame, the air cylinder is arranged above the baffle plate, and the output end of the air cylinder pushes the telescopic column to move; the telescopic column drives the upper top plate to descend to limit the fixed frame, the frame clamping stability is improved, the moving assembly is arranged and installed below the workbench, the workbench can move transversely and longitudinally by operating the moving assembly, the position of the clamped frame is adjusted, and the frame can be machined conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of frame coating technology, concretely relates to a special fixture for automobile assembly line coating multi-axle frame. BACKGROUND

[0002] The automobile assembly line coating multi-axle frame special fixture of the utility model is characterized by the following: the special fixture for automobile assembly line coating multi-axle frame is composed of a fixed base, a workbench, a plurality of rear positioning columns, a plurality of shaft positioning and pressing blocks, a front positioning and pressing assembly, a right side baffle, a left side positioning and pressing assembly, a plurality of movable assemblies and a plurality of fixture assemblies.

[0003] The existing frame fixture is mostly built by traditional welding, which is complicated and time-consuming and labor-consuming in operation, cannot guarantee the fastening of the clamping fixture, causes the frame to be severely deformed due to residual stress, and increases the manufacturing cost.

[0004] The automobile assembly line coating multi-axle frame special fixture disclosed by Chinese patent CN203992941U includes a bottom plate, a plurality of rear positioning columns, a plurality of shaft positioning and pressing blocks, a front positioning and pressing assembly, a right side baffle, and a left side positioning and pressing assembly.

[0005] The above device is inconvenient to place the frame before clamping, needs to align the frame with the corresponding positioning position, is inconvenient to operate, and is inconvenient to adjust the position of the frame during machining operation after clamping, which affects the machining efficiency.

[0006] Therefore, the automobile assembly line coating multi-axle frame special fixture is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0007] The utility model discloses a special fixture for automobile assembly line coating multi-axle frame.

[0008] The utility model discloses a special fixture for automobile assembly line coating multi-axle frame.

[0009] A special fixture for automobile assembly line coating multi-axle frame includes a fixed base and a workbench, the workbench is arranged above the fixed base, the workbench upper surface both sides are fixedly installed with the baffle, the fixed base upper surface is provided with the movable assembly, and the workbench upper surface is provided with the fixture assembly.

[0010] Further, the moving assembly comprises a first fixed column fixedly installed on the upper surface of the fixed base, a first installation slot is formed on the upper surface of the first fixed column, a first driving motor is fixedly installed on one side of the outer surface of the first fixed column, a first threaded column is rotatably installed on the inner wall of the first installation slot, the output end of the first driving motor is connected with one end of the first threaded column, a first moving block is engaged with the outer surface of the first threaded column, a first connecting column is fixedly installed on the upper surface of the first moving block, a second fixed column is fixedly installed on the upper surface of the first connecting column, a second installation slot is formed on the upper surface of the second fixed column, a second threaded column is rotatably installed on the inner wall of the second installation slot, a second driving motor is fixedly installed on one side of the outer surface of the second fixed column, the output end of the second driving motor is connected with one end of the second threaded column, a second moving block is engaged with the outer surface of the second threaded column, a second connecting column is fixedly installed on the upper surface of the second moving block, and the upper surface of the second connecting column is fixedly connected with the bottom surface of the workbench.

[0011] Further, the clamp assembly comprises a clamping module and a limiting module, the clamping module comprises an installation table fixedly installed on one side of the outer surface of the baffle, a fixed block is movably installed on the inner bottom surface of the installation table, a hole is formed in one side of the outer surface of the fixed block, a threaded rod is installed in the hole, a fixed cylinder is fixedly installed on the surface of one end of the threaded rod, a handle is fixedly connected with one end surface of the fixed cylinder, a first rotating shaft is rotatably installed on one side of the outer surface of the fixed block, a connecting plate is fixedly connected with the outer surface of the first rotating shaft, a connecting arm is rotatably connected with one end surface of the connecting plate, a second rotating shaft is fixedly installed on one side of the upper surface of the connecting arm, the second rotating shaft is rotatably connected between the bottom surface of the second rotating shaft and the upper surface of the installation table, a third rotating shaft is rotatably installed on one end of the connecting arm, a triangular clamping head is fixedly connected with the outer surface of the third rotating shaft, a fourth rotating shaft is rotatably installed on one side of the upper surface of the triangular clamping head, a supporting plate is fixedly connected with the outer surface of the fourth rotating shaft, a fifth rotating shaft is fixedly connected with the bottom surface of the supporting plate, and the fifth rotating shaft is rotatably connected with the upper surface of the installation table.

[0012] Further, the limiting module comprises a concave seat fixedly installed on the upper surface of the baffle, a gas cylinder is fixedly installed on the upper surface of the concave seat, a telescopic column is connected with the output end of the gas cylinder, an upper top plate is fixedly installed on the bottom surface of the telescopic column, a limiting plate is fixedly installed on one side of the outer surface of the baffle, and a placement plate is fixedly installed on the upper surface of the workbench.

[0013] Further, the installation tables are equally spaced and sequentially distributed on the outer surface of the baffle, holes are sequentially formed in one side of the outer surface of the baffle, and one end of the threaded rod passes through the holes and is fixedly connected with the end surface of the fixed cylinder.

[0014] Further, the first fixed column is symmetrically distributed on the upper surface of the fixed base, a hole is penetrated through the inner wall of the first mounting groove, the first threaded column is connected with the output end of the first driving motor through the hole, the second fixed column is symmetrically distributed on the upper surface of the first connecting column, a hole is penetrated through the inner wall of the second mounting groove, and the second threaded column is connected with the output end of the second driving motor through the hole.

[0015] The utility model discloses the beneficial effects are as follows:

[0016] The utility model discloses, set up a plurality of installation platform in the baffle outer surface one side, install the triangle clamping head in installation platform both sides, after the frame is placed above the placing plate, the operation multiple triangle clamping head can be fixed and clamped to the frame, set up the cylinder above the baffle, the operation cylinder makes the output end of cylinder push telescopic column and remove, and telescopic column drives the upper top plate to descend and carries out the location treatment to the fixed frame, improves the stability of frame clamping, through setting up the movement subassembly, movement subassembly installs below the work table, and the operation movement subassembly can realize the transverse and longitudinal movement of work table, and the position of clamped frame is adjusted, and it is convenient to process the frame. ACCURACY OF DRAWINGS

[0017] Figure 1 It is the first visual angle structure schematic drawing of the utility model,

[0018] Figure 2 It is the movement subassembly structure schematic drawing of the utility model,

[0019] Figure 3 It is the clamp subassembly structure schematic drawing of the utility model,

[0020] Figure 4 It is the clamping module structure schematic drawing of the utility model.

[0021] Reference numerals: 1. Fixed base; 2. Worktable; 3. Moving assembly; 301. Fixed post No. 1; 302. Mounting slot No. 1; 303. Drive motor No. 1; 304. Threaded post No. 1; 305. Moving block No. 1; 306. Connecting post No. 1; 307. Fixed post No. 2; 308. Mounting slot No. 2; 309. Drive motor No. 2; 310. Threaded post No. 2; 311. Moving block No. 2; 312. Connecting post No. 2; 4. Fixture assembly; 401. Baffle; 40 2. Limiting plate; 403. Concave seat; 404. Cylinder; 405. Telescopic column; 406. Top plate; 407. Placement plate; 408. Mounting platform; 409. Fixing block; 410. No. 1 rotating shaft; 411. Threaded rod; 412. Fixing cylinder; 413. Handle; 414. Connecting plate; 415. Connecting arm; 416. No. 2 rotating shaft; 417. No. 3 rotating shaft; 418. Triangular clamping head; 419. No. 4 rotating shaft; 420. Support plate; 421. No. 5 rotating shaft. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0026] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. 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. Therefore, they should not be construed as limitations on this utility model.

[0027] like Figures 1-4 As shown, a special fixture for multi-axis vehicle frames used in automotive assembly line painting includes a fixed base 1 and a worktable 2. The worktable 2 is positioned above the fixed base 1, and baffles 401 are fixedly installed on both sides of the upper surface of the worktable 2. A moving component 3 is provided on the upper surface of the fixed base 1, and a clamping component 4 is provided on the upper surface of the worktable 2. After the vehicle frame is placed on the worktable 2, the clamping component 4 is operated to clamp and limit the vehicle frame. After the vehicle frame is fixed, the moving component 3 is operated to adjust the position of the vehicle frame, thereby adjusting its spraying position and improving spraying efficiency.

[0028] The movable component 3 includes a first fixed post 301 fixedly mounted on the upper surface of the fixed base 1. A first mounting groove 302 is formed on the upper surface of the first fixed post 301. A first drive motor 303 is fixedly mounted on one side of the outer surface of the first fixed post 301. A first threaded post 304 is rotatably mounted on the inner wall of the first mounting groove 302. The output end of the first drive motor 303 is connected to one end of the first threaded post 304. A first moving block 305 engages with the outer surface of the first threaded post 304. A first connecting post 306 is fixedly mounted on the upper surface of the first moving block 305. A second fixed post 307 is fixedly mounted on the upper surface of the first connecting post 306. A second mounting groove 308 is formed on the upper surface of the second fixed post 307. A second threaded post 310 is rotatably mounted on the inner wall of the second mounting groove 308. A second fixed post 310 is fixedly mounted on one side of the outer surface of the second fixed post 307. There is a second drive motor 309, and the output end of the second drive motor 309 is connected to one end of the second threaded post 310. The outer surface of the second threaded post 310 is engaged with the second moving block 311. The upper surface of the second moving block 311 is fixedly installed with the second connecting post 312. The upper surface of the second connecting post 312 is fixedly connected to the bottom surface of the worktable 2. When the first threaded post 304 rotates, it drives the first moving block 305 installed on its outer surface to move. The movement of the first moving block 305 drives the first connecting post 306 and the second fixed post 307 to move, thereby adjusting the lateral position of the worktable 2. When the second threaded post 310 rotates, it drives the second moving block 311 installed on its outer surface to move. The movement of the second moving block 311 drives the second connecting post 312 and the worktable 2 to move, thereby adjusting the longitudinal position of the worktable 2 for better spraying.

[0029] The clamping assembly 4 includes a clamping module and a limiting module. The clamping module includes a mounting platform 408 fixedly installed on one side of the outer surface of the baffle 401. A fixing block 409 is movably installed on the inner bottom surface of the mounting platform 408, and a hole is passed through one side of the outer surface of the fixing block 409. A threaded rod 411 is installed inside the hole. A fixing cylinder 412 is fixedly installed on one end surface of the threaded rod 411. A handle 413 is fixedly connected to one end surface of the fixing cylinder 412. A first rotating shaft 410 is rotatably installed on one side of the outer surface of the fixing block 409. A connecting plate 414 is fixedly connected to the outer surface of the first rotating shaft 410. A connecting arm 415 is rotatably connected to one end surface of the connecting plate 414. A second rotating shaft 416 is fixedly installed on one side of the upper surface of the connecting arm 415. The connecting arm 415 is rotatably connected to the upper surface of the mounting platform 408. A third rotating shaft 417 is rotatably mounted on one end of the connecting arm 415. A triangular clamping head 418 is fixedly connected to the outer surface of the third rotating shaft 417. A fourth rotating shaft 419 is rotatably mounted on one side of the upper surface of the triangular clamping head 418. A support plate 420 is fixedly connected to the outer surface of the fourth rotating shaft 419. A fifth rotating shaft 421 is fixedly connected to the bottom surface of the support plate 420, and the bottom surface of the fifth rotating shaft 421 is rotatably connected to the upper surface of the mounting platform 408. A clamping module is set up to clamp the frame placed on the placement plate 407. The triangular clamping heads 418, which are arranged sequentially on one side of the outer surface of the baffle 401, rotate in opposite directions to clamp the frame. Multiple sets of triangular clamping heads 418 improve the clamping stability of the frame.

[0030] The limiting module includes a concave seat 403 fixedly installed on the upper surface of the baffle 401, a cylinder 404 fixedly installed on the upper surface of the concave seat 403, a telescopic column 405 connected to the output end of the cylinder 404, an upper top plate 406 fixedly installed on the bottom surface of the telescopic column 405, a limiting plate 402 fixedly installed on one side of the outer surface of the baffle 401, and a placement plate 407 fixedly installed on the upper surface of the worktable 2. When the cylinder 404 is operated, the output end of the cylinder 404 pushes the telescopic column 405 down, and the telescopic column 405 drives the upper top plate 406 down, so that the bottom surface of the upper top plate 406 contacts the upper part of the outer surface of the frame, thereby limiting the frame above after it is fixedly clamped and improving the stability of the frame.

[0031] Mounting platforms 408 are evenly spaced and sequentially distributed on the outer surface of baffle 401. Holes are sequentially passed through one side of the outer surface of baffle 401. One end of threaded rod 411 passes through the hole and is fixedly connected to one end of fixed cylinder 412. By setting multiple mounting platforms 408, multiple sets of triangular clamping heads 418 can clamp the frame, improving the clamping effect. The holes on one side of the outer surface of baffle 401 facilitate the direct rotation of fixed cylinder 412 and threaded rod 411 when the handle 413 is turned, thereby adjusting the clamping force of triangular clamping heads 418.

[0032] The first fixing post 301 is symmetrically distributed on both sides of the upper surface of the fixing base 1. The inner wall of the first mounting groove 302 has a through hole on one side. One end of the first threaded post 304 passes through the hole and is connected to the output end of the first drive motor 303. The second fixing post 307 is symmetrically distributed on both sides of the upper surface of the first connecting post 306. The inner wall of the second mounting groove 308 has a through hole on one side. One end of the second threaded post 310 passes through the hole and is connected to the output end of the second drive motor 309.

[0033] In summary, this multi-axis chassis-specific fixture for automotive assembly line painting places the chassis above the placement plate 407, with the other side of the chassis contacting the limiting plate 402 for positioning. Rotating the handle 413 sequentially causes the fixed cylinder 412 to rotate, which in turn rotates the threaded rod 411. This causes the fixing block 409 mounted on the outer surface of the threaded rod 411 to slide. As the fixing block 409 moves closer to the baffle 401, it pulls the first rotating shaft 410 and connecting plate 414 on both sides to rotate. The connecting plate 414 then causes the connecting arm 415 to rotate on the outer surface of the second rotating shaft 416. The two connecting arms 415 rotate towards each other, driving the triangular clamping head 418 to rotate via the third rotating shaft 417. This causes the inner side of the triangular clamping head 418 to contact the chassis and clamp it securely. After the chassis is clamped above the placement plate 407, the cylinder 404 is operated. The output end of the cylinder 404 pushes the telescopic column 405 to descend. The telescopic column 405 drives the upper top plate 406 to descend, so that the bottom surface of the upper top plate 406 contacts the upper part of the outer surface of the frame, thereby limiting the frame after clamping. During spraying, the power of the first drive motor 303 is turned on, and the output end of the first drive motor 303 drives the first threaded column 304 to rotate, causing the first moving block 305, which is engaged with the outer surface of the first threaded column 304, to move. The first moving block 305 drives the first connecting column 306 and the second fixed column 307, which are fixedly connected to the upper surface, to move laterally, adjusting the lateral spraying position. The power of the second drive motor 309 is turned on, and the output end of the second drive motor 309 drives the second threaded column 310 to rotate, causing the second moving block 311, which is engaged with the outer surface of the second threaded column 310, to move. The second moving block 311 drives the second connecting column 312 to move, thereby enabling the second connecting column 312 to drive the worktable 2 to move longitudinally, adjusting the longitudinal position of the spraying.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A special fixture for multi-axis vehicle frames used in automotive assembly line painting, comprising a fixed base (1) and a worktable (2), wherein the worktable (2) is disposed above the fixed base (1), and baffles (401) are fixedly installed on both sides of the upper surface of the worktable (2), characterized in that: The fixed base (1) is provided with a moving component (3) on its upper surface, and the workbench (2) is provided with a clamping component (4) on its upper surface.

2. The special fixture for multi-axle vehicle frames used in automotive assembly line painting according to claim 1, characterized in that: The moving component (3) includes a first fixed post (301) fixedly installed on the upper surface of the fixed base (1). A first mounting groove (302) is formed on the upper surface of the first fixed post (301). A first drive motor (303) is fixedly installed on one side of the outer surface of the first fixed post (301). A first threaded post (304) is rotatably installed on the inner wall of the first mounting groove (302). The output end of the first drive motor (303) is connected to one end of the first threaded post (304). A first moving block (305) meshes with the outer surface of the first threaded post (304). A first connecting post (306) is fixedly installed on the upper surface of the first moving block (305). 6) A second fixed column (307) is fixedly installed on the upper surface. A second mounting groove (308) is opened on the upper surface of the second fixed column (307). A second threaded column (310) is rotatably installed on the inner wall of the second mounting groove (308). A second drive motor (309) is fixedly installed on one side of the outer surface of the second fixed column (307). The output end of the second drive motor (309) is connected to one end of the second threaded column (310). A second moving block (311) is engaged on the outer surface of the second threaded column (310). A second connecting column (312) is fixedly installed on the upper surface of the second moving block (311). The upper surface of the second connecting column (312) is fixedly connected to the bottom surface of the workbench (2).

3. The special fixture for multi-axle vehicle frames used in automotive assembly line painting according to claim 1, characterized in that: The clamping assembly (4) includes a clamping module and a limiting module. The clamping module includes a mounting platform (408) fixedly installed on one side of the outer surface of the baffle (401). A fixing block (409) is movably installed on the inner bottom surface of the mounting platform (408), and a hole is penetrating one side of the outer surface of the fixing block (409). A threaded rod (411) is installed inside the hole. A fixing cylinder (412) is fixedly installed on one end surface of the threaded rod (411), and a handle (413) is fixedly connected to one end surface of the fixing cylinder (412). A first rotating shaft (410) is rotatably installed on one side of the outer surface of the fixing block (409), and a connecting plate (414) is fixedly connected to the outer surface of the first rotating shaft (410). One end of the connecting plate (414) is... A connecting arm (415) is rotatably connected to the surface. A second rotating shaft (416) is fixedly installed on one side of the upper surface of the connecting arm (415), and the bottom surface of the second rotating shaft (416) is rotatably connected to the upper surface of the mounting platform (408). A third rotating shaft (417) is rotatably installed at one end of the connecting arm (415). A triangular clamping head (418) is fixedly connected to the outer surface of the third rotating shaft (417). A fourth rotating shaft (419) is rotatably installed on one side of the upper surface of the triangular clamping head (418). A support plate (420) is fixedly connected to the outer surface of the fourth rotating shaft (419). A fifth rotating shaft (421) is fixedly connected to the bottom surface of the support plate (420), and the bottom surface of the fifth rotating shaft (421) is rotatably connected to the upper surface of the mounting platform (408).

4. A special fixture for multi-axle vehicle frames used in automotive assembly line painting according to claim 3, characterized in that: The limiting module includes a concave seat (403) fixedly installed on the upper surface of the baffle (401), a cylinder (404) fixedly installed on the upper surface of the concave seat (403), a telescopic column (405) connected to the output end of the cylinder (404), an upper top plate (406) fixedly installed on the bottom surface of the telescopic column (405), a limiting plate (402) fixedly installed on one side of the outer surface of the baffle (401), and a placement plate (407) fixedly installed on the upper surface of the workbench (2).

5. A special fixture for multi-axle vehicle frames used in automotive assembly line painting according to claim 3, characterized in that: The mounting platforms (408) are distributed at equal intervals on the outer surface of the baffle (401). Holes are sequentially passed through one side of the outer surface of the baffle (401). One end of the threaded rod (411) passes through the hole and is fixedly connected to one end of the fixed cylinder (412).

6. A special fixture for multi-axle vehicle frames used in automotive assembly line painting according to claim 2, characterized in that: The first fixing post (301) is symmetrically distributed on both sides of the upper surface of the fixing base (1). The inner wall of the first mounting groove (302) has a through hole on one side. One end of the first threaded post (304) passes through the hole and is connected to the output end of the first drive motor (303). The second fixing post (307) is symmetrically distributed on both sides of the upper surface of the first connecting post (306). The inner wall of the second mounting groove (308) has a through hole on one side. One end of the second threaded post (310) passes through the hole and is connected to the output end of the second drive motor (309).

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