Fixing and positioning device for special-shaped pipe welding

Abstract

The utility model discloses a fixing and positioning device for welding special-shaped pipes. The fixing and positioning device is characterized by comprising an operation table, a rotating frame, a servo motor, a placing seat, a mounting frame, a speed reducing motor and the like, a welding mechanical arm for welding a workpiece is arranged on the operation table, a rotating frame is rotationally connected to the operation table, the rotating frame is of a hollow structure so that the welding mechanical arm can weld the workpiece conveniently, the rotating frame is driven by a servo motor to rotate, and a plurality of containing bases are connected to the rotating frame; the device has the advantages that the gear motor drives the driving disc and the pressing plate to rotate clockwise, the driving disc drives the gear ring to rotate through the convex block, so that the second gear and the third gear drive the rack to move, the supporting strip firstly moves to the position below the workpiece, then the pressing plate continues to rotate to press the workpiece, and the stability of the workpiece pressing process is guaranteed; the workpiece is stably fixed through cooperation of the pressing plate and the supporting strip, and operation is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding technical field especially relates to a fixed positioning device for special-shaped pipe welding. BACKGROUND

[0002] In industrial production, special-shaped pipes need accurate fixing and positioning during the welding process due to their unique shape and structure to ensure the accuracy and stability of welding. However, traditional fixed positioning devices often cannot meet the special needs of special-shaped pipes, resulting in deviations and deformations during the welding process, which affects the quality and production efficiency of products.

[0003] Traditional fixed positioning devices often use two-end clamping or front-back and left-right clamping. This fixing method may be effective for regular-shaped pipes, but for special-shaped pipes, due to their complex and variable shapes, a single fixing method is difficult to achieve comprehensive and stable fixing effect. Currently, for the fixing of special-shaped pipes, a clamp similar to a vice is generally used, which is relatively cumbersome to operate, and during clamping, the special-shaped pipes are prone to displacement, affecting the welding effect. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a fixed positioning device for special-shaped pipe welding that is easy to operate and stable during clamping.

[0005] The technical scheme adopted by the utility model to solve the above technical problem is as follows: a fixed positioning device for special-shaped pipe welding, comprising an operation table, a rotating frame, a servo motor, a placing seat, a mounting frame, a reduction motor, a pressing plate and a supporting mechanism, a welding mechanical arm for welding workpieces is arranged on the operation table, the rotating frame is rotatably connected to the operation table, the rotating frame is a hollow structure to facilitate welding of the workpieces by the welding mechanical arm, the rotating frame is driven to rotate by the servo motor, a plurality of placing seats are connected to the rotating frame, the placing seats are used to place workpieces, the operation table is connected to the mounting frame, the mounting frame is provided with a reduction motor, a pressing plate is connected to the output shaft of the reduction motor, the pressing plate is in the shape of F, the mounting frame is provided with a supporting mechanism, and the supporting mechanism can support the workpieces.

[0006] The further preferred scheme of the utility model is: the support mechanism includes driving disc, gear ring, transmission assembly, second gear, third gear, rack and limiting plate, the output shaft end part of speed reducer is connected with driving disc, gear ring is rotatably connected on the upper portion of mounting frame, driving disc and gear ring are driven through transmission assembly, the lower portion of mounting frame is rotatably connected with second gear, second gear is engaged with gear ring, third gear is connected on second gear, the lower portion of mounting frame is slidably connected with support strip, workpiece is fixed through the cooperation of support strip and pressing plate, rack is connected on support strip, rack is engaged with third gear, two limiting plates are connected on support strip, and two limiting plates are located at both sides of mounting frame respectively.

[0007] The further preferred scheme of the utility model is: transmission assembly includes compression spring and protruding block, recess is uniformly and interval arranged on the inner side of gear ring, protruding block is slidably connected on the outer side of driving disc, protruding block cooperates with recess, and compression spring is connected between protruding block and driving disc.

[0008] The further preferred scheme of the utility model is: still including reset spring and buffer plate, buffer plate is slidably connected on both end portions of pressing plate, and reset spring is connected between buffer plate and pressing plate.

[0009] The further preferred scheme of the utility model is: still including protective pad, protective pad is connected on the bottom of buffer plate, protective pad plays a protective role to workpiece, and prevents rigid contact when buffer plate contacts workpiece.

[0010] The further preferred scheme of the utility model is: still including roller, roller is rotatably arranged on the bottom of support strip, and the friction between support strip and mounting frame is reduced through roller, so that support strip moves smoothly.

[0011] The further preferred scheme of the utility model is: still including dustproof cover plate, dustproof cover plate is installed on the outer side of driving disc, protruding block and recess are located in dustproof cover plate, dustproof cover plate can block dust, and prevent dust from entering the space between driving disc and gear ring and affecting the movement performance of protruding block.

[0012] The further preferred scheme of the utility model is: still including protective cover, protective cover is installed on the upper portion of mounting frame, gear ring, second gear and third gear are located in protective cover, protective cover plays a protective role, prevents foreign matter from falling and affecting the transmission between gear ring, second gear and third gear, and can also prevent the operation personnel from being injured due to accident during transmission.

[0013] Compared with the prior art, the utility model has the advantages of placing the workpiece in the placing seat on the rotating frame, then driving disc and pressing plate are rotated clockwise through the reduction motor, driving disc rotates through the lug to drive gear ring, gear bar is moved through the second gear and the third gear, support bar moves to the rotating frame direction, support bar will not move under the limiting effect of the limiting plate after moving to the position below the workpiece, then pressing plate continues to rotate and presses above the workpiece, so, support bar moves to the position below the workpiece first, then pressing plate presses the workpiece, guarantee the stability of workpiece pressing process, and the cooperation of pressing plate and support bar realizes the stable fixing of workpiece, and the operation is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model will be further described in detail below in combination with the drawings and preferred embodiments, but the person skilled in the art will appreciate that these drawings are only drawn for the purpose of explaining the preferred embodiments, and therefore should not be regarded as a limitation on the scope of the utility model. In addition, unless specifically indicated, the drawings only schematically show the composition or structure of the described object conceptually and can contain exaggerated display, and the drawings are not necessarily drawn to scale.

[0015] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0016] Figure 2 It is the position structure schematic diagram of the utility model mounting frame and rotating frame;

[0017] Figure 3 It is the connecting structure schematic diagram of the utility model support bar, limiting plate, gear bar;

[0018] Figure 4 It is the connecting structure schematic diagram of the utility model pressing plate, return spring, buffer plate;

[0019] Figure 5 It is the utility model Figure 4 It is the enlarged view of A in the utility model.

[0020] In the drawing: 1, operation platform, 101, welding mechanical arm, 2, rotating frame, 201, servo motor, 202, placing seat, 3, workpiece, 4, mounting frame, 5, reduction motor, 6, pressing plate, 7, driving disc, 71, gear ring, 72, recess, 73, compression spring, 74, lug, 8, second gear, 9, third gear, 10, support bar, 11, limiting plate, 111, gear bar, 12, return spring, 13, buffer plate, 14, protection pad, 15, roller, 16, dust cover, 17, protection cover. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0022] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0023] This embodiment mainly describes the structure of the fixed positioning device, as follows:

[0024] A fixing and positioning device for welding irregularly shaped pipes, such as Figures 1-3 As shown, the device includes an operating table 1, a rotating frame 2, a servo motor 201, a placement seat 202, a mounting frame 4, a geared motor 5, a pressure plate 6, and a support mechanism. The operating table 1 is equipped with a welding robotic arm 101 for welding workpieces 3. The rotating frame 2 is rotatably connected to the operating table 1. The rotating frame 2 has a hollow structure to facilitate welding of workpieces 3 by the welding robotic arm 101. The rotating frame 2 is driven to rotate by the servo motor 201. Multiple placement seats 202 are connected to the rotating frame 2 for placing workpieces 3. The operating table 1 is connected to the mounting frame 4, and a geared motor 5 is mounted on the mounting frame 4. A pressure plate 6, which is F-shaped, is connected to the output shaft of the geared motor 5. A support mechanism is provided on the mounting frame 4 to support the workpieces 3.

[0025] like Figures 2-5 As shown, the support mechanism includes a drive disk 7, a gear ring 71, a compression spring 73, a protrusion 74, a second gear 8, a third gear 9, a rack 111, and a limiting plate 11. The output shaft end of the reduction motor 5 is connected to the drive disk 7. The upper part of the mounting frame 4 is rotatably connected to the gear ring 71. Grooves 72 are evenly spaced on the inner side of the gear ring 71. The outer side of the drive disk 7 is slidably connected to the protrusion 74, which cooperates with the grooves 72. A compression spring 73 is connected between the protrusion 74 and the drive disk 7. The lower part of the mounting frame 4 is rotatably connected to the second gear 8, which meshes with the gear ring 71. The third gear 9 is connected to the second gear 8. The lower part of the mounting frame 4 is slidably connected to the support bar 10. The support bar 10 cooperates with the pressure plate 6 to fix the workpiece 3. The support bar 10 is connected to the rack 111, which meshes with the third gear 9. Two limiting plates 11 are connected to the support bar 10, and the two limiting plates 11 are located on both sides of the mounting frame 4.

[0026] like Figure 4As shown, it also includes a reset spring 12, a buffer plate 13 and a protective pad 14, the two ends of the pressing plate 6 are slidingly connected with the buffer plate 13, the buffer plate 13 is connected with the pressing plate 6 through the reset spring 12, the bottom of the buffer plate 13 is connected with the protective pad 14, the protective pad 14 plays a protective role on the workpiece 3, preventing rigid contact when the buffer plate 13 contacts the workpiece 3.

[0027] As shown in Figure 4 As shown, it also includes a roller 15, the bottom of the support strip 10 is rotatably provided with the roller 15, the friction between the support strip 10 and the mounting frame 4 is reduced through the roller 15, so that the support strip 10 moves smoothly.

[0028] As shown in Figure 2 As shown, it also includes a dust cover 16, the outer side of the driving disc 7 is provided with the dust cover 16, the protrusion 74 and the groove 72 are located in the dust cover 16, the dust cover 16 can block dust, preventing dust from entering the space between the driving disc 7 and the gear ring 71 to affect the movement performance of the protrusion 74.

[0029] As shown in Figure 1 As shown, it also includes a protective cover 17, the upper part of the mounting frame 4 is provided with the protective cover 17, the gear ring 71, the second gear 8 and the third gear 9 are located in the protective cover 17, the protective cover 17 plays a protective role, preventing foreign matter from falling into to affect the transmission between the gear ring 71, the second gear 8 and the third gear 9, and preventing accidental injury to the operator during transmission.

[0030] In use, the workpieces 3 are placed on the respective placing seats 202, and the positions to be welded between the workpieces 3 are in contact; then the speed reducer motor 5 drives the pressing plate 6 and the driving disc 7 to rotate clockwise by 90 degrees, the driving disc 7 drives the gear ring 71 to rotate clockwise through the cooperation of the protrusion 74 and the groove 72, thereby driving the second gear 8 to rotate counterclockwise, and the third gear 9 rotates counterclockwise accordingly, and the third gear 9 drives the support strip 10 to move towards the rotary frame 2 through the rack 111, so that the support strip 10 is located below the workpiece 3, and when the left limiting plate 11 contacts the mounting frame 4, the support strip 10 cannot continue to move towards the rotary frame 2 at this time, that is, the gear ring 71 cannot continue to rotate clockwise, and the driving disc 7 will continue to rotate, so the protrusion 74 will slide in the groove 72, and under the action of the compression spring 73, the protrusion 74 moves adaptively on the driving disc 7, and the pressing plate 6 is pressed above the workpiece 3 after rotating clockwise by 90 degrees, in this way, the second gear 8 is driven to rotate by the gear ring 71, so that the support strip 10 is first moved below the workpiece 3, and then the pressing plate 6 presses the workpiece 3, ensuring the stability of the pressing process of the workpiece 3, and the workpiece 3 is stably fixed through the cooperation of the pressing plate 6 and the support strip 10, and the operation is convenient, at this time, the workpiece 3 can be welded by the welding mechanical arm 101;

[0031] After the welding is completed, the deceleration motor 5 is started to drive the driving disc 7 and the pressing plate 6 to rotate counterclockwise by 90 degrees to reset, the driving disc 7 drives the gear ring 71 to rotate counterclockwise through the protrusion 74, so as to drive the rack 111 to move through the second gear 8 and the third gear 9, and then drive the support strip 10 to move away from the rotating frame 2, after the limiting plate 11 on the right side contacts the mounting frame 4, the support strip 10 stops moving, at this time, the driving disc 7 rotates relative to the gear ring 71, and the protrusion 74 slides in the groove 72; then, the servo motor 201 is started to drive the rotating frame 2 to rotate counterclockwise, so that the workpiece 3 after welding faces forward, facilitating the operator to take out, or directly through the control servo motor 201 drives the rotating frame 2 to rotate counterclockwise by 180 degrees, so that the rotating frame 2 drives the workpiece 3 to rotate by 180 degrees and then directly falls on the operation table 1, and then the operator collects, and then controls the servo motor 201 to drive the rotating frame 2 to rotate to reset, so as to perform the welding process of the next workpiece 3.

[0032] In the description of the utility model, it is necessary to explain that the terms "upper", "lower", "front", "rear", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the utility model product is used, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0033] The above describes in detail the fixing and positioning device for the special-shaped pipe welding, the principle and implementation mode of the utility model are described by applying specific examples in the text, and the above embodiment is only used to help understand the utility model and core idea. It should be pointed out that for ordinary skilled persons in the technical field, without departing from the principle of the utility model, the utility model can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the utility model claims.

Claims

1. A fixing and positioning device for welding irregularly shaped pipes, characterized in that: The device includes an operating table (1), a rotating frame (2), a servo motor (201), a placement seat (202), a mounting frame (4), a geared motor (5), a pressure plate (6), and a support mechanism. The operating table (1) is equipped with a welding robotic arm (101) for welding workpieces (3). The operating table (1) is rotatably connected to the rotating frame (2), which has a hollow structure. The rotating frame (2) is driven to rotate by the servo motor (201). Multiple placement seats (202) are connected to the rotating frame (2), which are used to place workpieces (3). The operating table (1) is connected to the mounting frame (4), which is equipped with a geared motor (5). The output shaft of the geared motor (5) is connected to the pressure plate (6), which is F-shaped. The mounting frame (4) is equipped with a support mechanism that can support the workpieces (3).

2. The fixing and positioning device for welding irregularly shaped pipes according to claim 1, characterized in that: The support mechanism includes a drive disc (7), a gear ring (71), a transmission assembly, a second gear (8), a third gear (9), a rack (111), and a limiting plate (11). The output shaft of the geared motor (5) is connected to the drive disc (7). The gear ring (71) is rotatably connected to the upper part of the mounting bracket (4). The drive disc (7) and the gear ring (71) are driven by the transmission assembly. The lower part of the mounting bracket (4) is rotatably connected to the second gear (8). The second gear (8) and the gear ring (9) are connected by the transmission assembly. The ring (71) meshes, the second gear (8) is connected to the third gear (9), the lower part of the mounting frame (4) is slidably connected to the support bar (10), the support bar (10) cooperates with the pressure plate (6) to fix the workpiece (3), the support bar (10) is connected to the rack (111), the rack (111) meshes with the third gear (9), the support bar (10) is connected to two limiting plates (11), the two limiting plates (11) are located on both sides of the mounting frame (4).

3. The fixing and positioning device for welding irregularly shaped pipes according to claim 2, characterized in that: The transmission assembly includes a compression spring (73) and a protrusion (74). The inner side of the gear ring (71) is provided with grooves (72) at even intervals. The outer side of the drive disk (7) is slidably connected to the protrusion (74). The protrusion (74) cooperates with the groove (72). The compression spring (73) is connected between the protrusion (74) and the drive disk (7).

4. The fixing and positioning device for welding irregularly shaped pipes according to claim 3, characterized in that: It also includes a return spring (12) and a buffer plate (13). The two ends of the pressure plate (6) are slidably connected to the buffer plate (13), and the return spring (12) is connected between the buffer plate (13) and the pressure plate (6).

5. A fixing and positioning device for welding irregularly shaped pipes according to claim 4, characterized in that: It also includes a protective pad (14), and the bottom of the buffer plate (13) is connected to the protective pad (14).

6. The fixing and positioning device for welding irregularly shaped pipes according to claim 5, characterized in that: It also includes a roller (15), and the bottom of the support bar (10) is rotatably equipped with a roller (15).

7. A fixing and positioning device for welding irregularly shaped pipes according to claim 6, characterized in that: It also includes a dust cover (16), with a dust cover (16) installed on the outside of the drive disc (7), and the protrusion (74) and groove (72) located inside the dust cover (16).

8. The fixing and positioning device for welding irregularly shaped pipes according to claim 7, characterized in that: It also includes a protective cover (17). The upper part of the mounting bracket (4) is equipped with a protective cover (17), and the gear ring (71), the second gear (8), and the third gear (9) are all located inside the protective cover (17).

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