Convenient overturning tool for multi-pose assembly of workpiece

Abstract

The convenient overturning tool comprises an aluminum profile frame (2), and two overturning devices (1) are symmetrically installed at the top of the aluminum profile frame (2); the turnover device (1) comprises two fixed handles (4), a fixed supporting plate (6), a rotating shaft (7), a supporting seat (12), a positioning ball (9) and an indexing pin (10). The structure of a traditional assembly tool is optimized, and the assembly requirements of various workpieces can be expanded and met; according to the assembling tool, an operator only needs to carry out convenient operation of shifting and rotating the workpiece and drawing and rotating the indexing pin, multi-direction and multi-pose conversion assembling of the complex workpiece can be completed, the tool adjusting time is saved, the assembling operation procedure is optimized, and the operation efficiency can be effectively improved; the adopted supporting limiting and positioning locking elements are compact and simple in structure, convenient to assemble and low in requirement for use site conditions, and the whole tool equipment is stable and reliable in function and low in failure rate.

Description

Technical Field

[0001] The present invention relates to a convenient turning tool for assembling workpieces in multiple postures, which is mainly used in the fields of aerospace and automobile production and assembly, realizes the function of transforming the assembly orientation of workpieces, and meets the requirements of assembling complex workpieces in multiple postures. Background Art

[0002] In traditional assembly operations, assembly tools are mostly used to assemble workpieces in a fixed position. However, aerospace products have diverse structures and complex assembly characteristics. The workpiece orientation and posture need to be adjusted to facilitate assembly operations by operators, which places higher requirements on the adjustability and ease of operation of assembly tools. In response to the multi-position flip assembly needs of complex workpieces, existing tooling in the industry is often designed based on pneumatic and electric components, and the flipping and positioning functions of the workpiece are realized through actuators such as swing cylinders, linear cylinders (with connecting rods), and motors. However, in order to control electrical actuators, power, air source, and electrical circuit control components are required. The overall tooling structure is complex and has high requirements for site conditions. Traditional mechanical flip tooling often uses parts such as latches and blocks to fix the workpiece. Operators need to frequently align latch holes or take and place blocks, and the operation is relatively cumbersome. Summary of the invention

[0003] The present invention aims to optimize the traditional assembly tooling structure. In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0004] A convenient turning tool for assembling a workpiece in multiple positions, comprising an aluminum profile frame (2), on the top of which two turning devices (1) are symmetrically mounted, the aluminum profile frame (2) being connected at the bottom, and a space is reserved in the middle for turning the workpiece;

[0005] The turning device (1) comprises two fixed handles (4), a fixed support plate (6), a rotating shaft (7), a supporting seat (12), a positioning bead (9) and an indexing pin (10);

[0006] The fixed handle (4) is connected to the fixed support plate (6) via a thread, the workpiece to be assembled is mounted on the fixed support plate (6), and the fixed handle (4) is rotated to press and clamp the workpiece to be assembled.

[0007] The fixed support plate (6) is connected to the rotating shaft (7) via a connecting screw (5);

[0008] The rotating shaft (7) passes through the oil-free bushing (8) and is rotatably connected to the support seat (12). A plurality of "V"-shaped grooves and pin holes are distributed on the rotating shaft (7);

[0009] The support seat (12) is connected to the aluminum profile frame (2) via a profile connector (3);

[0010] The positioning bead (9) is installed on the side of the support seat (12) through a thread;

[0011] The indexing pin (10) is mounted on the top of the support seat (12) via threads.

[0012] As a preferred embodiment, the rear end of the rotating shaft (7) is provided with a shaft shoulder and a thread, and the rotating shaft (7) is loosened and fixed by means of a double round nut (11) to prevent axial movement.

[0013] As a preferred embodiment, there are two oil-free bushings (8), which are respectively fixed to the two ends of the support seat (12) by connecting screws.

[0014] As a preferred embodiment, the rotating shaft (7) has four "V"-shaped grooves and four pin holes, which are evenly distributed in the axial position of the cylindrical surface of the rotating shaft (7).

[0015] As a preferred embodiment, the tip steel ball of the positioning bead (9) has a certain amount of expansion and contraction under the action of the spring, and can be inserted into the "V"-shaped groove provided on the surface of the rotating shaft (7), thereby realizing accurate positioning of the workpiece.

[0016] As a preferred embodiment, the indexing pin (10) has a spring structure and can be extended and retracted as required, so as to lock or unlock the position of the rotating shaft (7) when assembling the workpiece.

[0017] The present invention has the following advantages:

[0018] 1. The present invention optimizes the traditional assembly tooling structure to realize the multi-position assembly function of the workpiece, and has certain expansibility and adaptability. For complex workpieces with diverse structures, the rotation indexing of the rotating shaft can be refined to expand the assembly requirements of various workpieces;

[0019] 2. In terms of operation, the present invention only requires the operator to perform convenient operations such as turning the workpiece and pulling the rotary indexing pin to complete the multi-directional and multi-posture conversion assembly of complex workpieces, saving tooling adjustment time, optimizing assembly operation procedures, and effectively improving operating efficiency;

[0020] 3. The support limit and positioning locking elements used in the present invention are compact and simple in structure, easy to assemble, and have low requirements on the conditions of the use site. The overall tooling equipment functions stably and reliably, and has a low failure rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a stereogram of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the turning device of the present invention.

[0024] In the figure, 1- flip device, 2- aluminum profile frame, 3- profile connector, 4- fixed handle, 5- connecting screw, 6- fixed support plate, 7- rotating shaft, 8- oil-free bushing, 9- positioning bead, 10- indexing pin, 11- round nut, 12- supporting seat. DETAILED DESCRIPTION

[0025] Combine the following Figure 1-Figure 3 , the present invention is described in detail.

[0026] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] Embodiment 1:

[0028] A convenient turning tool for multi-position assembly of workpieces, comprising: an aluminum profile frame 2, on the top of which two turning devices 1 are symmetrically mounted, the aluminum profile frame 2 is connected at the bottom, and a space is reserved in the middle for turning the workpiece;

[0029] The flipping device 1 comprises two fixed handles 4, a fixed support plate 6, a rotating shaft 7, a supporting seat 12, a positioning bead 9 and an indexing pin 10;

[0030] The fixed handle 4 is connected to the fixed support plate 6 through a thread, the workpiece to be assembled is mounted on the fixed support plate 6, and the fixed handle 4 is rotated to clamp the workpiece to be assembled.

[0031] The fixed support plate 6 is connected to the rotating shaft 7 via connecting screws 5;

[0032] The rotating shaft 7 passes through the oil-free bushing 8 and is rotatably connected to the support seat 12. A plurality of "V"-shaped grooves and pin holes are distributed on the rotating shaft 7;

[0033] The support seat 12 is connected to the aluminum profile frame 2 through the profile connector 3;

[0034] The positioning beads 9 are installed on the side of the support seat 12 through threads;

[0035] The indexing pin 10 is mounted on the top of the support seat 12 by means of threads.

[0036] The tail of the rotating shaft 7 is provided with a shoulder and a thread, and the rotating shaft 7 is loosened and fixed by a double round nut 11 to prevent axial movement. There are two oil-free bushings 8, which are respectively fixed at both ends of the support seat 12 by connecting screws. There are four "V"-shaped grooves and four pin holes on the rotating shaft 7, which are evenly distributed in the axial position of the cylindrical surface of the rotating shaft 7. The tip steel ball of the positioning bead 9 has a certain amount of expansion and contraction under the action of the spring, and can be stuck in the "V"-shaped groove set on the surface of the rotating shaft 7 to achieve precise positioning of the workpiece. The indexing pin 10 has a spring structure and can be expanded and contracted as needed to lock or unlock the position of the rotating shaft 7 when the workpiece is assembled.

[0037] Embodiment 2:

[0038] A convenient turning tool for multi-position assembly of workpieces, the operation steps are as follows:

[0039] 1. Adjust the flip device to a horizontal position, place the workpiece to be assembled on the fixed support plate 6, connect the fixed handle 4 and the fixed support plate 6 by threads, rotate the fixed handle 4 to tighten and clamp the workpiece to be assembled, and assemble the workpiece in its initial position.

[0040] 2. The weight load is transferred from the fixed support plate 6 to the rotating shaft 7, the oil-free bushing 8, the support seat 12, and finally to the aluminum alloy profile frame 2.

[0041] 3. When changing the assembly posture of the workpiece, the operator turns the workpiece, the turning device shaft 7 is fixed to the fixed support plate 6 by the connecting screw 5, and the workpiece rotates with the fixed support plate 6 and the shaft 7.

[0042] 4. The rotating shaft 7 is supported circumferentially by the oil-free bushing 8, and the friction contact surface is lubricated by the solid lubricant in its hole. The axial shoulder of the rotating shaft 7 is connected by two round nuts 11 through threads to provide axial fixation to prevent circumferential movement during rotation.

[0043] 5. When the workpiece rotates, the support seat 12 is fixed with a positioning bead 9 and an indexing pin 10 by threaded installation. The steel ball at the tip of the positioning bead 9 rolls on the cylindrical surface of the rotating shaft 7, the spring of the indexing pin 10 contracts, and the pin is lifted and does not contact the rotating shaft 7.

[0044] 6. When the operator rotates the workpiece to the assembly position, the tip of the positioning bead 9 is inserted into the "V"-shaped groove on the cylindrical surface of the rotating shaft 7, and resistance appears during flipping. The operator stops flipping and the workpiece is converted to the assembly position.

[0045] 7. The operator pulls the rotary indexing pin 10, the spring extends, and the pin shaft is inserted into the corresponding pin hole of the rotating shaft 7 to fix the rotating shaft 7. The assembled workpiece cannot be further turned along the horizontal axis, and the workpiece is assembled in this position.

[0046] 8. When assembling in the next posture, pull out the rotating indexing pin 10, compress the spring and lift it up, separate the pin shaft from the pin hole, overcome the resistance of the steel ball at the tip of the positioning bead 9 and continue to rotate the workpiece until the steel ball is stuck in the next "V"-shaped groove, locate the next assembly position, and assemble. Repeat the operation until the workpiece is assembled in all directions and postures.

[0047] The present invention is not limited to the above-mentioned specific embodiments, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. A convenient turning tool for multi-position assembly of workpieces, characterized by: It comprises an aluminum profile frame (2), on the top of which two turning devices (1) are symmetrically mounted; The turning device (1) comprises two fixed handles (4), a fixed support plate (6), a rotating shaft (7), a supporting seat (12), a positioning bead (9) and an indexing pin (10); The fixed handle (4) is connected to the fixed support plate (6) via threads; The fixed support plate (6) is connected to the rotating shaft (7) via a connecting screw (5); The rotating shaft (7) passes through the oil-free bushing (8) and is rotatably connected to the support seat (12). A plurality of "V"-shaped grooves and pin holes are distributed on the rotating shaft (7); The support seat (12) is connected to the aluminum profile frame (2) via a profile connector (3); The positioning bead (9) is installed on the side of the support seat (12) through a thread; The indexing pin (10) is mounted on the top of the support seat (12) via threads.

2. A convenient turning tool for multi-position assembly of workpieces according to claim 1, characterized in that: The rear end of the rotating shaft (7) is provided with a shaft shoulder and a thread, and the rotating shaft (7) is adjusted by means of a double round nut (11).

3. The convenient turning tool for multi-position assembly of workpieces according to claim 1, characterized in that: There are two oil-free bushings (8), which are respectively fixed at two ends of the support seat (12) by connecting screws.

4. The convenient turning tool for multi-position assembly of workpieces according to claim 1, characterized in that: The rotating shaft (7) has four "V"-shaped grooves and four pin holes, which are evenly distributed in the axial position of the cylindrical surface of the rotating shaft (7).

5. The convenient turning tool for multi-position assembly of workpieces according to claim 1, characterized in that: The tip steel ball of the positioning ball (9) is inserted into a "V"-shaped groove arranged on the surface of the rotating shaft (7).

6. The convenient turning tool for multi-position assembly of workpieces according to claim 1, characterized in that The indexing pin (10) has a spring structure to lock or unlock the position of the rotating shaft (7) when the workpiece is assembled.

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