Rotatable workpiece assembly tool

Abstract

The utility model provides a rotatable workpiece assembling tool, and relates to the technical field of machining, the rotatable workpiece assembling tool comprises a platen piece, a die holder and an adjusting table are arranged on the platen piece in the horizontal direction, a fixed die table and a rotating shaft which are axially aligned are arranged on the die holder and the adjusting table respectively, and a connecting shaft rod is connected between the fixed die table and the rotating shaft; compared with the prior art, the utility model has the beneficial effects that: on the basis of a rotary structure, on the basis of the mode of adjusting the assembly angle of the clamp, the connecting shaft rod arranged along the axial direction is matched with the spherical joint structure at the end part, and on the basis of the structure of realizing axial rotation by the straight shaft, the clamp is further overlapped and fixed with the fixed die tables and the rotary shaft on the two sides; according to the rotary assembly tool, a stable rotary assembly structure is provided for the assembly end of the tool through axial reinforcement of the spherical joint, the fixed die table and the rotary shaft, and compared with a traditional rotary structure, fatigue accumulation of a rotary part during continuous assembly machining is effectively avoided, and the stability and fatigue resistance of the assembly tool are improved.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and more specifically, to a rotatable workpiece assembly fixture. Background Technology

[0002] The rotating structures in existing workpiece assembly fixtures are mainly used to achieve multi-angle positioning or continuous rotation of workpieces to improve assembly efficiency and accuracy or adapt to complex process requirements. They are widely used in industries such as automobiles, electronics, aerospace and heavy machinery.

[0003] However, in most assembly scenarios, the assembly end of the tooling and the rotating structure need to be vertically connected to ensure the maximum assembly space. However, the vertical connection between the rotating structure and the rotating structure is prone to axial mechanical fatigue when subjected to vertical force, and vertical force can affect the horizontal accuracy of the rotating structure, limiting the positioning accuracy of the rotating structure during connection and assembly. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the rotating part of the existing assembly tooling is affected by the rotating structure and the vertical docking method, resulting in poor stability and fatigue resistance. In order to solve the above problems, a rotatable workpiece assembly tooling is provided.

[0005] The purpose and effect of this utility model are achieved by the following specific technical means: it includes a platform component, on which a mold base and an adjustment platform are arranged in the horizontal direction. A fixed mold platform and a rotating shaft are respectively arranged on the mold base and the adjustment platform. A connecting rod is connected between the fixed mold platform and the rotating shaft. The two ends of the connecting rod are respectively rotatably engaged with the fixed mold platform and the rotating shaft with a first spherical joint and a second spherical joint. A straight shaft is radially arranged at the rotating end of the first spherical joint and the second spherical joint.

[0006] The rotating shaft is provided with an axial transmission structure at one end relative to the connecting rod, and a motor is externally connected to the transmission structure.

[0007] A clamp is mounted on the connecting rod, and T-shaped platforms are provided on both sides of the clamp, overlapping with the fixed mold table and the rotating shaft.

[0008] Furthermore: the transmission structure includes an axially arranged connecting shaft and a toothed disc, the connecting shaft and the toothed disc being rotatably engaged, and the outer end of the connecting end of the toothed disc and the connecting shaft forming a concave axial insertion port.

[0009] A further preferred embodiment: the inner end of the connecting shaft rod and the toothed disk is provided with an axially linked concave disk component, the outer edge of the concave disk component is engaged with the inner edge of the toothed disk, and a Hall sensor is rolledly engaged between the concave disk component and the connecting end of the toothed disk.

[0010] A further preferred embodiment: a ball bearing is used for rotatable engagement between the connecting rod and the rotating shaft.

[0011] A further preferred embodiment: the connecting rod and the clamp are vertically connected.

[0012] A further preferred embodiment: the connection end between the mold base and the platform is provided with an axial sliding guide groove structure.

[0013] The beneficial effects of this utility model are:

[0014] This type of rotatable workpiece assembly fixture, based on a rotating structure to adjust the assembly angle of the fixture, uses a connecting rod arranged along the axial direction and a ball joint structure at the end to further fix the fixture to the fixed mold table and rotating shaft on both sides, as well as the axial reinforcement of the ball joint with the fixed mold table and rotating shaft, to provide a stable rotating assembly structure for the assembly end of the fixture. Compared with traditional rotating structures, it effectively avoids fatigue accumulation in the rotating part during continuous assembly processing, and improves the stability and fatigue resistance of the assembly fixture. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal planar structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the planar structure of the coupling rod of this utility model;

[0019] Figure 4 This is a schematic diagram of the planar structure of the clamp of this utility model.

[0020] Figures 1-4 In the middle: 1. Platform plate, 2. Mold base, 3. Adjustment table, 4. Rotating shaft, 5. Fixed mold table, 6. Fixture, 7. Connecting shaft, 8. First spherical joint, 9. Second spherical joint, 10. Connecting shaft, 11. Gear plate, 12. Concave plate, 13. Slotted shaft, 14. Ball bearing, 15. T-shaped table. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the following description is provided in conjunction with the accompanying drawings. Figures 1-4 The present invention will be further described in detail below with specific embodiments. The following embodiments are merely examples of implementing the present invention. It must be noted that the disclosed embodiments do not limit the scope of the present invention. On the contrary, any modifications and refinements made without departing from the scope of the present invention are within the patent protection scope of the present invention.

[0022] A rotatable workpiece assembly fixture includes a platform 1. A mold base 2 and an adjustment table 3 are arranged horizontally on the platform 1. A fixed mold base 5 and a rotating shaft 4 are respectively arranged on the mold base 2 and the adjustment table 3. A connecting rod 7 connects the fixed mold base 5 and the rotating shaft 4. A first spherical joint 8 and a second spherical joint 9 are respectively rotatably engaged with the fixed mold base 5 and the rotating shaft 4 at both ends. A cross shaft 13 is radially arranged at the rotating ends of the first spherical joint 8 and the second spherical joint 9.

[0023] The rotating shaft 4 is provided with an axial transmission structure at one end relative to the connecting rod 7, and a motor is externally connected to the transmission structure;

[0024] A clamp 6 is mounted on the connecting rod 7, and T-shaped platforms 15 are provided on both sides of the clamp 6, overlapping with the fixed mold table 5 and the rotating shaft 4.

[0025] The assembly fixture uses the table plate 1 as the assembly platform. Its fixture 6 corresponds to the size mold of the workpiece to be assembled. The specific size is determined according to the size of the workpiece to be assembled. The fixture 6 is shaped into a T-shaped structure by the T-shaped table 15. Curved surfaces that cooperate with the surfaces of the fixed mold table 5 and the rotating shaft 4 are provided on the inner edges of the T-shaped table 15 on both sides to ensure the horizontal overlap stability of the T-shaped table 15. At the same time, it can strengthen the axial load of the fixture 6. The upper surface of the fixture 6 corresponds to the clamping and fixing end of the workpiece to be assembled.

[0026] During processing, such as Figure 2 , 3 As shown, the axial rotation braking is achieved through the motor connected to the outer end of the rotating shaft 4. The connecting rod 7, which is set along the axis, is matched with the fixed mold table 5 and the rotating shaft 4 through the first spherical joint 8 and the second spherical joint 9 at both ends. Its transmission structure is axially connected to the axial surfaces of the first spherical joint 8 and the second spherical joint 9 through the straight shaft 13. During rotational assembly, the axial angle of the connecting rod 7 is changed by the coaxial linkage between the fixed mold table 5 and the rotating shaft 5, that is, the structure of the fixture 6 fixed above it is adjusted, and the workpiece on the fixture 6 is rotated and adjusted. At the same time, compared with the traditional axial rotation structure, this fixture eliminates the mechanical fatigue of the connecting rod 7 during axial movement through the transmission cooperation of the first spherical joint 8 and the second spherical joint 9. The axial force of the connecting rod 7 is balanced by the movement of the spherical joints at both ends. At the same time, it provides balanced and effective horizontal support for the vertical docking structure of the fixture 6. Combined with the overlapping structure of the T-shaped table 15, it improves the horizontal stability of the entire fixture 6 assembly structure and ensures the movement accuracy of the assembly structure during continuous rotational assembly.

[0027] Based on the above, the transmission structure includes an axially arranged connecting shaft 10 and a toothed disc 11. The connecting shaft 10 and the toothed disc 11 are rotatably engaged. The outer end of the connecting end of the toothed disc 11 and the connecting shaft 10 forms a concave axial insertion port. The transmission structure is connected to the axial insertion port by an external motor. During transmission, the rotation of the motor shaft drives the connecting shaft 10 to rotate axially in the toothed disc 11. The transmission of the second spherical joint 9 is driven by the other end of the slotted shaft 13.

[0028] Specifically, the inner end of the connecting rod 10 and the toothed disk 11 is provided with an axially linked concave disk 12. The outer edge of the concave disk 12 is engaged with the inner edge of the toothed disk 11. A Hall sensor is rolled at the connecting end of the concave disk 12 and the toothed disk 11. The assembly structure also uses a Hall sensor connected inside the concave disk 12 to sense the relative rotation number of the concave disk 12 and the toothed disk 11, so as to provide the specific rotation angle of the connecting rod 7 to the machine control terminal and support the automation of the assembly tooling.

[0029] Furthermore, a ball bearing 14 is rotatably fitted between the connecting rod 10 and the rotating shaft 4, such as... Figure 3 As shown, a ball bearing 14 is further used as a transmission support structure between the connecting rod 10 and the rotating shaft 4, providing a movable fitting end for the transmission connection end of the connecting rod 10, the slotted shaft 13, the second spherical joint 9 and the connecting rod 7, ensuring the axial stability and flexibility of the entire transmission connection end during axial transmission.

[0030] Furthermore, the connecting rod 7 and the fixture 6 are vertically connected. Based on the traditional assembly method of rotating and assembly structures, the vertical connection structure can provide sufficient assembly space for the assembly surface of the fixture 6 while ensuring axial rotation flexibility. At the same time, in conjunction with the spherical joint structure set along the axial direction of the connecting rod 7 and the T-shaped platform 15 structure on the fixture 6, the stability and strength of the entire vertical connection surface are ensured.

[0031] Furthermore, the connection end between the mold base 2 and the platform 1 is provided with an axial sliding guide groove structure, such as... Figure 1 As shown, the mold base 2 and the platform 1 can slide and adjust the distance between the mold base 2 and the adjustment table 3 by means of the guide groove provided along the axial direction, so as to adapt to different fixture size assembly requirements.

[0032] During assembly, the table plate 1 is used as the assembly platform, and its fixture 6 corresponds to the size mold of the workpiece to be assembled. The upper surface of the fixture 6 corresponds to the clamping and fixing end of the workpiece to be assembled.

[0033] During processing, the motor connected to the outer end of the connecting rod 10 performs axial rotation braking. When the connecting rod 10 brakes with the motor shaft, it will rotate relative to the toothed disc 11 and the ball bearing 14. It will also drive the second ball joint 9 to move relative to the rotating shaft 4 through the slotted shaft 13. The connecting rod 7, which is set along the axis, is specifically matched with the fixed mold table 5 and the rotating shaft 4 through the first ball joint 8 and the second ball joint 9 at both ends. During rotational assembly, the axial angle of the connecting rod 7 is changed by the coaxial linkage between the fixed mold table 5 and the rotating shaft 5, that is, the structure of the fixture 6 fixed above it is adjusted, and the workpiece on the fixture 6 is rotated and adjusted.

[0034] During the process, the rotational engagement between the concave disc 12 and the toothed disc 11 is used to obtain the rotation angle of the coaxial connecting rod 10 by the Hall sensor, providing support for the machine control terminal of the tooling.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A rotatable workpiece assembly tool, comprising: The system includes a platform (1), on which a mold base (2) and an adjustment platform (3) are arranged in the horizontal direction. A fixed mold base (5) and a rotating shaft (4) are respectively arranged on the mold base (2) and the adjustment platform (3). A connecting rod (7) is connected between the fixed mold base (5) and the rotating shaft (4). The two ends of the connecting rod (7) are respectively rotatably engaged with the fixed mold base (5) and the rotating shaft (4) with a first spherical joint (8) and a second spherical joint (9). A straight shaft (13) is radially arranged at the rotating end of the first spherical joint (8) and the second spherical joint (9). The rotating shaft (4) is provided with an axial transmission structure at one end relative to the connecting rod (7), and the transmission structure is externally connected to a motor; A clamp (6) is mounted on the connecting rod (7), and a T-shaped platform (15) is provided on both sides of the clamp (6) between the fixed mold table (5) and the rotating shaft (4).

2. The rotatable workpiece assembly tool of claim 1, wherein: The transmission structure includes an axially arranged connecting rod (10) and a toothed disc (11). The connecting rod (10) and the toothed disc (11) are rotatably engaged. The outer end of the connecting end of the toothed disc (11) and the connecting rod (10) forms a concave axial insertion port.

3. The rotatable workpiece assembly tool of claim 2, wherein: The connecting rod (10) is connected to the toothed disk (11) with an axially linked concave disk (12) at the inner end. The outer edge of the concave disk (12) is engaged with the inner edge of the toothed disk (11) and a Hall sensor is rolled at the connecting end of the concave disk (12) and the toothed disk (11).

4. The rotatable workpiece assembly tool of claim 2, wherein: The connecting rod (10) and the rotating shaft (4) are rotatably fitted with a ball bearing (14).

5. The rotatable workpiece assembly tool of claim 1, wherein: The connecting rod (7) and the clamp (6) are vertically connected.

6. The rotatable workpiece assembly tool of claim 1, wherein: The mold base (2) and the platform (1) are connected by an axial sliding guide groove structure.

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