Horizontal three-axis positioner

Abstract

The utility model provides a horizontal three-axis positioner which comprises a bottom plate. The turntable unit is mounted on the bottom plate and is internally provided with a turntable motor for driving to rotate; the middle beam unit is installed on the rotary table unit, the middle beam unit and the rotary table unit are coaxially arranged, and the middle beam unit is in an H shape and symmetrically arranged and comprises a middle beam located in the middle and cross beams on the two sides of the middle beam. The overturning units are installed at the two ends of the cross beam. The two ends of the clamp frame are connected between the overturning units on the two sides of the pair of cross beams through hanging plate units correspondingly, and the clamp frame is parallel to the middle beam. The rotary table unit is used for achieving stable rotation of the clamp installed on the clamp frame in the horizontal direction, meanwhile, the turnover unit is combined for achieving rotation of the clamp in the vertical direction, and the hanging plate unit and the middle beam unit are matched, so that stable position adjustment of a heavy product can be achieved; and improvement of welding efficiency and welding quality is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of automated machinery, in particular to the technical field of welding positioners, in particular to a horizontal three-axis positioner. Background Art

[0002] Conventional horizontal three-axis positioners are mainly used in situations where workpieces need to be processed or welded at multiple angles, such as in welding workstations, spraying production lines, and assembly production lines, to ensure the control of the rotation and position of the workpiece for easy machining.

[0003] However, for automobile front fenders, frame products and tubular products, due to their heavy weight and long structure length, the conventional structure connection strength is insufficient, resulting in the inability to stably realize the rotation and movement of the above products. For the welding process, the angle accuracy cannot be guaranteed, so the applicability is not high. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a horizontal three-axis positioner to solve the difficulties of the prior art.

[0005] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides a horizontal three-axis positioner, comprising:

[0006] Bottom plate 1;

[0007] A turntable unit, the turntable unit is mounted on the bottom plate 1 and has a built-in turntable motor to drive the turntable unit to rotate;

[0008] A center beam unit, the center beam unit is mounted on the turntable unit, the two are coaxially arranged, the center beam unit is arranged in an H shape and symmetrically, including a center beam 7 located in the middle and cross beams 8 on both sides of the center beam 7;

[0009] A turning unit, which is installed on both ends of the crossbeam 8;

[0010] The clamp frame 2 has two ends connected between the flip units on both sides of a pair of the cross beams 8 through hanging plate units, and the clamp frame 2 is arranged parallel to the middle beam 7.

[0011] According to a preferred embodiment, the turntable unit comprises:

[0012] A bottom plate connecting plate 3, wherein the bottom plate connecting plate 3 is mounted on the bottom plate 1 by bolts;

[0013] A turntable bearing 4, the outer ring of which is mounted on the bottom plate connecting plate 3;

[0014] The center beam connecting plate 5 is arranged on the turntable bearing 4 and connected with the inner ring of the turntable bearing 4 by bolts. The center beam connecting plate 5 is also connected with the center beam unit by bolts.

[0015] According to a preferred solution, a through hole is provided in the middle beam connecting plate 5 for passing the turntable motor, so that the turntable motor can drive the inner ring of the turntable bearing 4 to rotate.

[0016] According to a preferred embodiment, the middle beam unit includes:

[0017] A connecting flange seat 6, wherein the connecting flange seat 6 is connected to the middle beam connecting plate 5 via a bottom flange, and a cavity for accommodating the turntable motor is formed inside;

[0018] A middle beam 7, wherein the middle beam 7 is extended along two opposite sides of the connecting flange seat 6;

[0019] Cross beams 8, each of which is integrally welded and arranged on a side of the middle beam 7 away from the connecting flange seat 6, and the cross beams 8 are arranged perpendicular to the middle beam 7;

[0020] The middle beam 7 and the cross beam 8 , as well as the connecting flange seat 6 and the middle beam 7 are fastened and connected by reinforcing ribs 9 .

[0021] According to a preferred solution, a top cover 10 is further provided on the top of the connecting flange seat 6 corresponding to the installation of the turntable motor.

[0022] According to a preferred solution, the cross beam 8 is hollow inside.

[0023] According to the preferred solution, a protective bracket 11 is installed on the outer side of the cross beam 8 away from the center beam 7, and a protective plate 12 is provided on the top of the connecting flange seat 6 and the center beam 7 and is located on the central axis of the center beam unit.

[0024] According to a preferred embodiment, a line connecting a pair of the protective brackets 11 forms a circular structure.

[0025] According to a preferred embodiment, the turning unit includes a driving end mounted on the cross beam 8 on one side, and a driven end mounted on the cross beam 8 on the opposite side;

[0026] The driving end comprises:

[0027] A housing 13, wherein the housing 13 is mounted on and connected to the crossbeam 8;

[0028] A flip motor 14, wherein the flip motor 14 is disposed in the housing 13;

[0029] A reducer 15, the reducer 15 is mounted on the flip motor 14 through a motor connection flange 16, and is disposed through the housing 13;

[0030] The cross beam connecting flange 17 has a T-shaped cross section, a through hole is formed in the middle for passing through and installing the reducer 15, and the annular side surface is concave to form a structure for clamping and installing on the housing 13;

[0031] The hanging plate connecting flange 18 is installed on the end surface of the reducer 15 close to the clamp frame 2.

[0032] According to a preferred solution, a gasket 19 is further provided between the cross beam connecting flange 17 and the housing 13 .

[0033] According to a preferred embodiment, the hanging plate unit comprises:

[0034] A hanging plate 20, the hanging plate 20 is L-shaped, including a horizontal end and a vertical end, the vertical end is mounted on the hanging plate connecting flange 18 by bolts, and the horizontal end extends toward the fixture frame 2;

[0035] A backing plate 21, which is horizontally mounted on the horizontal end of the hanging plate 20 by bolts and supported on the bottom of the fixture frame 2;

[0036] During installation, the bolts pass through the horizontal end of the hanging plate 20 and the backing plate 21 to be fastened to the clamp frame 2 .

[0037] According to a preferred embodiment, reinforcing ribs are installed between the horizontal end and the vertical end of the hanging plate 20 .

[0038] According to a preferred embodiment, quick-connect connectors 23 are installed around the clamp frame 2 via L-shaped brackets 22 .

[0039] The utility model utilizes a turntable unit to realize stable horizontal rotation of the clamp installed on the clamp frame, and at the same time combines with a flip unit to realize vertical rotation of the clamp. In conjunction with the hanging plate unit and the middle beam unit, stable position adjustment of heavier products can be achieved, which is beneficial to improving welding efficiency and welding quality.

[0040] The best embodiment of the present invention will be described in more detail below in conjunction with the accompanying drawings so that the features and advantages of the present invention can be easily understood. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 The display is a three-dimensional structural schematic diagram of the utility model;

[0042] Figure 2 Shown is an enlarged three-dimensional structural schematic diagram of a turntable unit in the present utility model;

[0043] Figure 3 Shown is an enlarged three-dimensional structural schematic diagram of the center beam unit in the present utility model;

[0044] Figure 4 Shown is an enlarged schematic diagram of the three-dimensional structure of the flip unit in the present utility model;

[0045] Figure 5 Shown is an enlarged three-dimensional structural schematic diagram of the driving end in the utility model;

[0046] Figure 6 Shown is an enlarged three-dimensional structural schematic diagram of the hanging plate unit in the present utility model;

[0047] Figure 7 Display as Figure 1 A magnified schematic diagram of the local structure;

[0048] Description of symbols

[0049] 1. Bottom plate; 2. Clamp frame; 3. Bottom plate connecting plate; 4. Turntable bearing; 5. Middle beam connecting plate; 6. Connecting flange seat; 7. Middle beam; 8. Cross beam; 9. Reinforcement ribs; 10. Top cover; 11. Protective bracket; 12. Protective plate; 13. Casing; 14. Flip motor; 15. Reducer; 16. Motor connecting flange; 17. Cross beam connecting flange; 18. Hanging plate connecting flange; 19. Gasket; 20. Hanging plate; 21. Pad; 22. L-shaped bracket; 23. Quick-plug connector. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solution and advantages of the technical solution of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described in conjunction with the drawings of the specific embodiments of the utility model. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the described 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.

[0051] Compared with the embodiments shown in the drawings, feasible implementations within the scope of protection of the present invention may have fewer components, other components not shown in the drawings, different components, differently arranged components, or differently connected components, etc. In addition, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0052] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons with ordinary skills in the field to which the utility model belongs. The words "first", "second" and similar words used in the specification and claims of the utility model patent application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not necessarily indicate quantity restrictions. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0053] The utility model provides a horizontal three-axis positioner for use in an automated welding workstation. The utility model does not limit the types of automotive parts, but the structure of the horizontal three-axis positioner is particularly suitable for automated welding robots to weld automotive front fenders, frame products and tubular products.

[0054] In general, the horizontal three-axis positioner proposed in the present invention mainly includes a base plate 1, a turntable unit, a middle beam unit, a flip unit and a fixture frame 2. Figure 1 , which shows the arrangement relationship of the base plate 1, the turntable unit, the middle beam unit, the flip unit and the fixture frame 2.

[0055] In order to achieve the purpose of carrying 500kg-level automobile parts in the positioner, the problem in the background technology that the front fenders, frame products and tubular products of automobiles are heavy in weight and long in structure, and the connection strength of conventional structures is insufficient, resulting in the inability to stably realize the rotation and movement of the above products. For the welding process, the accuracy of the angle cannot be guaranteed, so the applicability is not high. For this reason, in the technical solution provided in this embodiment, a turntable unit is used to realize the stable horizontal rotation of the clamp installed on the clamp frame 2, and at the same time, the flip unit is combined to realize the vertical rotation of the clamp, and in conjunction with the hanging plate unit and the middle beam unit, the stable position adjustment of the heavier products can be realized, which is beneficial to the improvement of welding efficiency and welding quality.

[0056] like Figure 1As shown, the turntable unit is installed on the base plate 1, and the built-in turntable motor drives the self-rotation. The middle beam unit is installed on the turntable unit. The two are coaxially arranged and rotate with the rotation of the turntable motor. The middle beam unit is arranged in an H shape and symmetrically, including a middle beam 7 located in the middle and cross beams 8 on both sides of the middle beam 7. Flipping units are installed on both ends of the cross beam 8. Both ends of the fixture frame 2 for installing the fixture are respectively connected between the flipping units on both sides of a pair of cross beams 8 through hanging plate units. The fixture frame 2 is arranged parallel to the middle beam 7 to achieve a stable support effect, thereby providing a guarantee for flipping in the subsequent welding process.

[0057] As mentioned above, in order to ensure that the center beam unit drives the fixture to rotate stably and without shaking, a turntable unit is installed on the base plate 1, and the turntable unit includes a base plate connecting plate 3, a turntable bearing 4 and a center beam connecting plate 5, wherein the base plate connecting plate 3 is installed on the base plate 1 by bolts, and the center beam connecting plate 5 is connected to the center beam unit by bolts, and the turntable bearing 4 is arranged between the base plate connecting plate 3 and the center beam connecting plate 5, wherein the outer ring of the turntable bearing 4 is installed on the base plate connecting plate 3, and the center beam connecting plate 5 is bolted to the inner ring of the turntable bearing 4. Due to the iterative installation of the base plate connecting plate 3, the turntable bearing 4 and the center beam connecting plate 5, the outer diameter gradually decreases, and the structures cooperate with each other to provide a stable basic platform; during rotation, since a through hole is opened in the center beam connecting plate 5 to pass through the turntable motor, it is convenient for the turntable motor to drive the inner ring of the turntable bearing 4 to rotate.

[0058] On this basis, the present embodiment further provides a center beam unit for supporting the clamp and a clamp frame 2 for supporting the installation of the clamp. Considering that the clamp needs to be flipped horizontally and vertically, the structure of the center beam unit is symmetrical. First, a connecting flange seat 6 is provided, which is connected to the center beam connecting plate 5 through a bottom flange, and a cavity for accommodating the turntable motor is formed inside. Next, the cross beams 8 are welded integrally on the side of the center beam 7 away from the connecting flange seat 6, and the cross beam 8 is arranged perpendicular to the center beam 7. Secondly, between the center beam 7 and the cross beam 8, the connecting flange seat 6 and the center beam 7 are fastened by reinforcing ribs 9 to achieve a stable connection state, thereby minimizing the instability caused by the imbalance on both sides.

[0059] In addition, in order to facilitate the inspection and installation of the turntable motor, a top cover 10 is provided at the top of the connecting flange seat 6 corresponding to the installation of the turntable motor; at the same time, the hollow setting inside the cross beam 8 can minimize the load-bearing caused by the frame structure, achieve a lightweight effect, and will not affect the stability of the overall structure.

[0060] It should be specifically explained that the flip unit includes a driving end installed on one side of the beam 8, and a driven end installed on the opposite side of the beam 8. The vertical rotation of the fixture structure is completed by the flip unit, wherein the driving end is connected to the beam 8 through a circle of flanges on the housing 13, ensuring a stable connection with the beam 8. Secondly, the reducer 15 in the housing 13 and the flip motor 14 are connected through the motor connecting flange 16, achieving a strong connection between the two; next, the cross-beam connecting flange 17 has a T-shaped cross section, with a through hole formed in the middle to pass through and install the reducer 15, and the annular side is concave to form The structure installed on the casing 13 is used to ensure that the relative connection structure between the reducer 15 and the flip motor 14 and the casing 13 will not loosen or fall off during operation. At the same time, a gasket 19 is arranged between the beam connecting flange 17 and the casing 13, which can play a certain buffering role and reduce the pressure caused by the driving force of the flip motor 14; finally, a hanging plate connecting flange 18 is installed on the end face of the reducer 15 close to the clamp frame 2, which also provides an installation position for the installation of the hanging plate unit, avoiding direct connection with the beam connecting flange 17, thereby reducing the pressure on the beam connecting flange 17.

[0061] The hanging plate unit mentioned above is arranged for the matching clamp frame 2. Since the clamp frame 2 is a long strip structure, it is usually formed by a combination of square steels. Therefore, a pile of hanging plate units are provided and are respectively located on both sides of the clamp frame 2 for connection and support. Specifically, the hanging plate 20 is L-shaped, including a horizontal end and a vertical end. Reinforcing ribs are installed between the horizontal end and the vertical end of the hanging plate 20. The vertical end is installed on the hanging plate connecting flange 18 by bolts, and the flange structure is used to achieve a firm connection of the hanging plate 20. Secondly, the horizontal end extends toward the clamp frame 2, and a pad 21 is installed on the horizontal end by bolts. During installation, the bolts pass through the horizontal end of the hanging plate 20 and the pad 21 and are fastened to the clamp frame 2. After installation, the pad 21 and the horizontal end of the hanging plate 20 are located at the bottom of the clamp frame 2, which does not affect the installation of the clamp and can also achieve the load-bearing effect.

[0062] Preferably, quick-insert connectors 23 are installed around the clamp frame 2 through L-shaped brackets 22, which facilitates quick disassembly and assembly of products during welding at the workstation, effectively improving production speed.

[0063] like Figure 1As shown, a protective bracket 11 is installed on the outer side of the cross beam 8 away from the middle beam 7. The connection line of a pair of protective brackets 11 forms a circular structure, which can not only play a counterweight role, but also further improve the stability and service life of the protective bracket, and can also create a certain distance between the equipment and surrounding equipment and operators to improve safety performance; in addition, a protective plate 12 is provided on the top of the flange seat 6 and the middle beam 7, and is located on the central axis of the middle beam unit, which can avoid the influence of impurities such as sparks generated during welding between relative clamps during welding.

[0064] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A horizontal three-axis positioner, characterized in that: include: Bottom plate (1); A turntable unit, the turntable unit being mounted on the bottom plate (1) and having a built-in turntable motor driving the turntable unit to rotate; A center beam unit, the center beam unit is mounted on the turntable unit, the two are coaxially arranged, the center beam unit is arranged in an H shape and is symmetrically arranged, including a center beam (7) located in the middle and cross beams (8) on both sides of the center beam (7); A turning unit, wherein the turning unit is installed on both ends of the crossbeam (8); A clamp frame (2), wherein both ends of the clamp frame (2) are connected between the flip units on both sides of a pair of cross beams (8) through hanging plate units respectively, and the clamp frame (2) is arranged parallel to the middle beam (7).

2. The horizontal three-axis positioner according to claim 1, characterized in that: The turntable unit comprises: A bottom plate connecting plate (3), wherein the bottom plate connecting plate (3) is mounted on the bottom plate (1) by means of bolts; A turntable bearing (4), the outer ring of the turntable bearing (4) being mounted on the bottom plate connecting plate (3); A center beam connecting plate (5), wherein the center beam connecting plate (5) is arranged on a turntable bearing (4) and is bolted to an inner ring of the turntable bearing (4); the center beam connecting plate (5) is also bolted to a center beam unit.

3. The horizontal three-axis positioner according to claim 2, characterized in that: The middle beam unit comprises: A connecting flange seat (6), wherein the connecting flange seat (6) is connected to the middle beam connecting plate (5) via a bottom flange, and a cavity for accommodating the turntable motor is formed inside the connecting flange seat (6); A middle beam (7), wherein the middle beam (7) is extended along two opposite sides of the connecting flange seat (6); Cross beams (8), the cross beams (8) are respectively integrally welded and arranged on a side of the middle beam (7) away from the connecting flange seat (6), and the cross beams (8) are arranged perpendicular to the middle beam (7); The middle beam (7) and the cross beam (8), as well as the connecting flange seat (6) and the middle beam (7) are fastened and connected via reinforcing ribs (9).

4. The horizontal three-axis positioner according to claim 3, characterized in that: A protective bracket (11) is installed on the outer side of the cross beam (8) away from the middle beam (7), and a protective plate (12) is arranged on the top of the connecting flange seat (6) and the middle beam (7) and is located on the central axis of the middle beam unit.

5. The horizontal three-axis positioner according to claim 4, characterized in that: The turning unit comprises a driving end mounted on a cross beam (8) on one side, and a driven end mounted on the cross beam (8) on the opposite side; The driving end comprises: A casing (13), wherein the casing (13) is mounted on and connected to the crossbeam (8); A turning motor (14), wherein the turning motor (14) is arranged in the housing (13); A reducer (15), the reducer (15) is mounted on the flip motor (14) through a motor connection flange (16) and is disposed through the housing (13); A cross-beam connecting flange (17), wherein the cross-beam connecting flange (17) has a T-shaped cross section, a through hole is formed in the middle for passing through and installing the reducer (15), and an annular side surface is concave to form a structure for being clamped and installed on the housing (13); A hanging plate connecting flange (18) is installed on the end surface of the reducer (15) close to the clamp frame (2).

6. The horizontal three-axis positioner according to claim 5, characterized in that: The hanging plate unit comprises: A hanging plate (20), the hanging plate (20) is L-shaped and comprises a horizontal end and a vertical end, the vertical end is mounted on the hanging plate connecting flange (18) by means of bolts, and the horizontal end extends toward the fixture frame (2); A backing plate (21), the backing plate (21) is horizontally mounted on the horizontal end of the hanging plate (20) by means of bolts and supported on the bottom of the clamp frame (2); During installation, the bolts pass through the horizontal end of the hanging plate (20) and the backing plate (21) and are fastened to the clamp frame (2).

7. The horizontal three-axis positioner according to claim 6, characterized in that: Quick-connect connectors (23) are installed around the clamp frame (2) via L-shaped brackets (22).

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