Cable winding and unwinding device suitable for robot welding machine trolley

Abstract

The invention discloses a cable take-up and pay-off device suitable for a robot welding machine trolley, and relates to the technical field of cable take-up and pay-off machines. Comprising a shell, a middle roller weldment arranged in the shell and used for winding a cable and a gas path pipeline, a movable wire guide wheel mechanism arranged in the shell and used for guiding the cable and the gas path pipeline, a first driving mechanism driving the middle roller weldment to rotate and a second driving mechanism driving the movable wire guide wheel mechanism to work. The wire outlet device is reasonable in design and has the advantages of being compact in structure, small in size and attractive in appearance, the wire outlet direction is vertically 45 degrees, and friction generated when a cable makes contact with the ground is effectively reduced; the problem that the working range of a welding vehicle is limited by the lengths of cables and air pipes can be effectively solved, and a series of potential safety hazards possibly caused by cable mopping are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of cable retracting and releasing machines, and more specifically to the technical field of cable retracting and releasing devices suitable for robot welding machine trolleys. Background Art

[0002] In recent years, with the continuous development of intelligent manufacturing technology, welding robots have been widely used in various industries due to their high efficiency and high quality, which has promoted the improvement of welding technology. However, due to the limitation of cables, existing welding robots are only suitable for fixed welding and short-distance mobile welding.

[0003] Specifically, most existing welding vehicles use electric motors as their power source, and welding machines and other equipment all require external power supply. However, when the welding vehicle moves, the cables will drag on the ground, causing a series of safety hazards. In addition to the power supply, network cables, air pipes, etc. are also required.

[0004] Therefore, it is of practical significance to design a cable retracting and releasing device suitable for a robot welding machine trolley. Summary of the invention

[0005] The purpose of the present invention is to solve the above technical problems and provide a cable retracting device suitable for a robot welding machine trolley.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0007] The present invention provides a cable retracting and releasing device suitable for a robot welding machine trolley, comprising a shell, an intermediate roller weldment arranged in the shell for winding cables and air pipelines, a movable wire wheel mechanism arranged in the shell for guiding the cables and the air pipelines, a first driving mechanism for driving the intermediate roller weldment to rotate, and a second driving mechanism for driving the movable wire wheel mechanism to work.

[0008] In one embodiment, the first driving mechanism includes a servo motor, a reducer, a reducer mounting plate and a chain, the output end of the servo motor is connected to the reducer, the reducer is mounted on the reducer mounting plate, the reducer mounting plate is connected to the outer casing, one end of the chain bypasses the reducer, and the other end bypasses one end of the intermediate roller weldment.

[0009] Specifically, the servo motor controls the forward and reverse rotation and rotation angle of the intermediate roller weldment according to the direction and distance of the welding vehicle; the reducer increases the rotation torque of the drum; and the chain is used for the transmission of the reducer and the intermediate roller weldment.

[0010] In one embodiment, the first driving mechanism further includes a reducer adjustment seat plate, which is installed between the reducer mounting plate and the housing and is used to adjust the reducer mounting position and tension the chain.

[0011] Specifically, the reducer mounting plate and the reducer adjusting seat plate are fixed by bolts; the reducer adjusting seat plate is used to adjust the installation position of the reducer and tighten the chain.

[0012] In one embodiment, the movable wire wheel mechanism includes two fixed seat plates installed on both sides of the outer shell, a reciprocating screw with two ends installed on the corresponding two fixed seat plates through external spherical bearings with seats, a reciprocating screw slider slidably sleeved on the reciprocating screw, and a wire wheel fixed on the reciprocating screw slider. The cable and the air pipeline are combined and exported through the wire wheel, and the second driving mechanism drives the reciprocating screw to rotate.

[0013] Specifically, the outer spherical bearing with seat fixes the reciprocating screw; the optical axis supports the linear bearing to slide left and right;

[0014] The fixed seat plate is used to fix the outer spherical bearing with seat; when the reciprocating screw rotates, the reciprocating screw slider drives the wire wheel to slide left and right to arrange the wire.

[0015] In one embodiment, it also includes a deviation correction mechanism located between the two fixed seat plates to prevent the reciprocating screw slider from rotating.

[0016] In one embodiment, the correction mechanism includes two sets of guide rod assemblies with the same structure, each guide rod assembly includes an optical axis fixed between two fixed seat plates and a linear bearing slidably mounted on the optical axis, and the linear bearing is fixed on a reciprocating screw slider.

[0017] In one embodiment, the second driving mechanism is a second driving chain, one end of the second driving chain is wound around a segment of the intermediate roller weldment, and the other end of the second driving chain is wound around the reciprocating screw rod.

[0018] Specifically: when the welding vehicle moves forward, the servo motor receives the signal and drives the chain to rotate the intermediate roller weldment to release the cable. At the same time, the other end of the intermediate roller is also driven by the second drive chain to make the reciprocating screw and the intermediate roller weldment rotate in the same direction, and then the reciprocating screw slider slides back and forth along the screw axis.

[0019] In one embodiment, the middle roller weldment includes a middle roller, a left roller mounting member and a right roller mounting member, and the left and right ends of the middle roller are respectively fixed to the left roller mounting member and the right roller mounting member through flanges.

[0020] In one embodiment, the left side mounting member of the drum includes an electric end shaft mounted on the left end of the housing by bolts, and an electric slip ring arranged on the electric end shaft by an electric slip ring fixing flange for conducting the cable and preventing the cable from being entangled.

[0021] In one embodiment, the right side mounting part of the drum includes an air circuit end shaft, an air circuit end flange, a bearing gasket, a slip ring adapter, an air slip ring and an air pipe joint which are arranged in sequence, the right end of the air circuit end shaft is fixed to the right end of the outer shell, the left end of the air circuit end shaft is connected to the air circuit end flange, the bearing gasket connects the air circuit end flange and the slip ring adapter, the slip ring adapter is connected to the air slip ring, and the air pipe joint is arranged on the air slip ring.

[0022] Working principle: First, place the cable retracting device on the welding vehicle and fix it through the bolt holes under the outer shell; wind the cable around the middle roller weldment, connect one end of the cable to the electric slip ring on the left, and lead the other end out from the wire pulley; wind the air pipe around the middle roller weldment, connect one end of the air pipe to the air slip ring on the right, and lead the other end out from the wire pulley.

[0023] The beneficial effects of the present invention are as follows:

[0024] 1. The present invention has reasonable design, compact structure, small size, beautiful appearance, and the cable outlet direction is vertical 45°, which effectively reduces the friction when the cable contacts the ground;

[0025] 2. The present invention can effectively solve the problem that the working range of the welding vehicle is limited by the length of the cable and the air pipe, and also avoid a series of safety hazards that may be caused by the cable dragging on the ground;

[0026] 3. The present invention uses programmed control to release the wire in forward direction and retract the wire in backward direction, automatically arrange the wire, and the length of the wire released and retracted is controlled according to the walking distance. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the external contour structure of the present invention;

[0028] Figure 2 yes Figure 1 Schematic diagram of a partially disassembled structure;

[0029] Figure 3 yes Figure 2 A directional view of

[0030] Figure markings: 1-housing, 2-servo motor, 3-reducer adjustment seat plate, 4-reducer, 5-reducer mounting plate, 6-chain, 7-wire pulley, 8-outer spherical bearing with seat, 9-optical axis, 10-fixed seat plate, 11-reciprocating screw slider, 12-reciprocating screw, 13-linear bearing, 14-intermediate roller weldment, 15-electric slip ring, 16-electric slip ring fixing flange, 17-electric end shaft, 18-air pipe joint, 19-air slip ring, 20-slip ring adapter, 21-bearing gasket, 22-air path end flange, 23-air path end shaft. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] 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 invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0034] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] Example 1

[0036] like Figures 1 to 3 As shown, this embodiment provides a cable retracting device suitable for a robot welding machine trolley, including a shell 1, an intermediate roller weldment 14 arranged in the shell 1 for winding cables and air pipelines, a movable wire wheel mechanism arranged in the shell 1 for guiding cables and air pipelines, a first driving mechanism for driving the intermediate roller weldment 14 to rotate, and a second driving mechanism for driving the movable wire wheel mechanism to work.

[0037] The first driving mechanism includes a servo motor 2, a reducer 4, a reducer mounting plate 5 and a chain 6. The output end of the servo motor 2 is connected to the reducer 4, the reducer 4 is mounted on the reducer mounting plate 5, the reducer mounting plate 5 is connected to the housing 1, and one end of the chain 6 bypasses the reducer 4, and the other end bypasses one end of the intermediate roller weldment 14.

[0038] Specifically, the servo motor 2 controls the forward and reverse rotation and the rotation angle of the intermediate roller weldment 14 according to the traveling direction and distance of the welding vehicle; the reducer 4 increases the rotating torque of the drum; and the chain 6 is used for the transmission of the reducer 4 and the intermediate roller weldment 14.

[0039] Example 2

[0040] like Figures 1 to 3 As shown, this embodiment provides a cable retracting device suitable for a robot welding machine trolley, including a shell 1, an intermediate roller weldment 14 arranged in the shell 1 for winding cables and air pipelines, a movable wire wheel mechanism arranged in the shell 1 for guiding cables and air pipelines, a first driving mechanism for driving the intermediate roller weldment 14 to rotate, and a second driving mechanism for driving the movable wire wheel mechanism to work.

[0041] The first driving mechanism includes a servo motor 2, a reducer 4, a reducer mounting plate 5 and a chain 6. The output end of the servo motor 2 is connected to the reducer 4, the reducer 4 is mounted on the reducer mounting plate 5, the reducer mounting plate 5 is connected to the housing 1, and one end of the chain 6 bypasses the reducer 4, and the other end bypasses one end of the intermediate roller weldment 14.

[0042] The first driving mechanism also includes a reducer adjustment seat plate 3 , which is installed between the reducer mounting plate 5 and the housing 1 and is used to adjust the installation position of the reducer 4 and tighten the chain 6 .

[0043] Specifically, the reducer mounting plate 5 is fixed to the reducer adjustment base plate 3 by bolts; the reducer adjustment base plate 3 is used to adjust the installation position of the reducer 4 and tighten the chain 6.

[0044] Example 3

[0045] This embodiment is further optimized on the basis of Embodiment 1 or Embodiment 2, specifically:

[0046] The movable wire wheel mechanism includes two fixed seat plates 10 installed on both sides of the shell 1, a reciprocating screw 12 with two ends installed on the corresponding two fixed seat plates 10 through outer spherical bearings 8 with seats, a reciprocating screw slider 11 slidably sleeved on the reciprocating screw 12, and a wire wheel 7 fixed on the reciprocating screw slider 11. The cable and the air pipeline are combined and led out through the wire wheel 7, and the second driving mechanism drives the reciprocating screw 12 to rotate.

[0047] Specifically, the outer spherical bearing 8 with a seat fixes the reciprocating screw 12; the optical axis 9 supports the linear bearing 13 to slide left and right;

[0048] The fixed seat plate 10 is used to fix the outer spherical bearing 8 with a seat; when the reciprocating screw 12 rotates, the reciprocating screw slider 11 drives the wire wheel 7 to slide left and right to arrange the wire.

[0049] Example 4

[0050] This embodiment is further optimized on the basis of embodiment 3, specifically:

[0051] It also includes a deviation correction mechanism located between the two fixed seat plates 10 to prevent the reciprocating screw slider 11 from rotating.

[0052] The deviation correction mechanism includes two groups of guide rod assemblies with the same structure. Each guide rod assembly includes an optical axis 9 fixed between two fixed seat plates 10 and a linear bearing 13 slidably sleeved on the optical axis 9. The linear bearing 13 is fixed on the reciprocating screw slider 11.

[0053] The second driving mechanism is a second driving chain, one end of which is wound around a section of the intermediate roller weldment 14 , and the other end of which is wound around the reciprocating screw rod 12 .

[0054] Specifically: when the welding vehicle moves forward, the servo motor 2 receives a signal and drives the chain 6 to rotate the intermediate roller weldment 14 to release the cable. At the same time, the other end of the intermediate roller is also driven by the second drive chain to make the reciprocating screw 12 and the intermediate roller weldment 14 rotate in the same direction, and then the reciprocating screw slider 11 slides back and forth along the screw axis.

[0055] Example 5

[0056] This embodiment is further optimized on the basis of embodiment 4, specifically:

[0057] The middle roller weldment 14 comprises a middle roller, a roller left side mounting part and a roller right side mounting part, and the left and right ends of the middle roller are respectively fixed on the roller left side mounting part and the roller right side mounting part through flanges.

[0058] The left side mounting part of the drum includes an electric end shaft 17 mounted on the left end of the housing 1 by bolts, and an electric slip ring 15 arranged on the electric end shaft 17 by an electric slip ring fixing flange 16 for conducting the cable and preventing the cable from being entangled.

[0059] The right side mounting part of the drum includes an air circuit end shaft 23, an air circuit end flange 22, a bearing washer 21, a slip ring adapter 20, an air slip ring 19 and an air pipe joint 18 which are arranged in sequence. The right end of the air circuit end shaft 23 is fixed to the right end of the outer shell 1, the left end of the air circuit end shaft 23 is connected to the air circuit end flange 22, the bearing washer 21 connects the air circuit end flange 22 and the slip ring adapter 20, the slip ring adapter 20 is connected to the air slip ring 19, and the air pipe joint 18 is arranged on the air slip ring 19.

[0060] Working principle: first, place the cable retracting device on the welding vehicle and fix it through the bolt holes at the bottom of the outer shell 1; wind the cable around the middle roller weldment 14, connect one end of the cable to the electric slip ring 15 on the left, and lead the other end out from the wire pulley 7; wind the air pipe around the middle roller weldment 14, connect one end of the air pipe to the air slip ring 19 on the right, and lead the other end out from the wire pulley 7.

Claims

1. A cable retracting device suitable for a robot welding machine trolley, characterized in that: The invention comprises a housing (1), an intermediate roller weldment (14) arranged in the housing (1) for winding cables and gas pipelines, a movable wire wheel mechanism arranged in the housing (1) for guiding cables and gas pipelines, a first driving mechanism for driving the intermediate roller weldment (14) to rotate, and a second driving mechanism for driving the movable wire wheel mechanism to work.

2. A cable retracting device suitable for a robot welding machine trolley according to claim 1, characterized in that: The first driving mechanism comprises a servo motor (2), a reducer (4), a reducer mounting plate (5) and a chain (6); the output end of the servo motor (2) is connected to the reducer (4); the reducer (4) is mounted on the reducer mounting plate (5); the reducer mounting plate (5) is connected to the housing (1); one end of the chain (6) bypasses the reducer (4) and the other end bypasses one end of the intermediate roller weldment (14).

3. A cable retracting device suitable for a robot welding machine trolley according to claim 2, characterized in that: The first driving mechanism also includes a reducer adjustment seat plate (3), which is installed between the reducer mounting plate (5) and the housing (1) and is used to adjust the installation position of the reducer (4) and tighten the chain (6).

4. The cable retracting device for a robot welding machine trolley according to claim 1, characterized in that: The movable wire wheel mechanism comprises two fixed seat plates (10) mounted on both sides of the housing (1), a reciprocating screw (12) whose two ends are mounted on the corresponding two fixed seat plates (10) through seated outer spherical bearings (8), a reciprocating screw slider (11) slidably sleeved on the reciprocating screw (12), and a wire wheel (7) fixed on the reciprocating screw slider (11); the cable and the air pipeline are combined and led out through the wire wheel (7), and the second driving mechanism drives the reciprocating screw (12) to rotate.

5. A cable retracting device suitable for a robot welding machine trolley according to claim 4, characterized in that: It also includes a deviation correction mechanism located between the two fixed seat plates (10) to prevent the reciprocating screw slider (11) from rotating.

6. A cable retracting device suitable for a robot welding machine trolley according to claim 5, characterized in that: The deviation correction mechanism comprises two groups of guide rod assemblies with the same structure, each of the guide rod assemblies comprises an optical axis (9) fixed between two fixed seat plates (10) and a linear bearing (13) slidably mounted on the optical axis (9), and the linear bearing (13) is fixed on the reciprocating screw slider (11).

7. A cable retracting device suitable for a robot welding machine trolley according to claim 4, characterized in that: The second driving mechanism is a second driving chain, one end of the second driving chain is wound around a section of the intermediate roller weldment (14), and the other end of the second driving chain is wound around the reciprocating screw rod (12).

8. The cable retracting device for a robot welding machine trolley according to claim 1, characterized in that: The intermediate roller weldment (14) comprises an intermediate roller, a roller left side mounting part and a roller right side mounting part, and the left and right ends of the intermediate roller are respectively fixed to the roller left side mounting part and the roller right side mounting part through flanges.

9. A cable retracting device suitable for a robot welding machine trolley according to claim 8, characterized in that: The left side mounting member of the drum comprises an electric end shaft (17) mounted on the left end of the housing (1) by means of bolts, and an electric slip ring (15) arranged on the electric end shaft (17) by means of an electric slip ring fixing flange (16) for conducting electricity to the cable and preventing the cable from being entangled.

10. A cable retracting device suitable for a robot welding machine trolley according to claim 8, characterized in that: The right side mounting member of the drum comprises an air circuit end shaft (23), an air circuit end flange (22), a bearing washer (21), a slip ring adapter (20), an air slip ring (19) and an air pipe joint (18) which are arranged in sequence; the right end of the air circuit end shaft (23) is fixed to the right end of the housing (1); the left end of the air circuit end shaft (23) is connected to the air circuit end flange (22); the bearing washer (21) connects the air circuit end flange (22) and the slip ring adapter (20); the slip ring adapter (20) is connected to the air slip ring (19); and the air pipe joint (18) is arranged on the air slip ring (19).

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