Movable clamping structure

Abstract

The utility model discloses a movable clamping structure which comprises a machine frame, a horizontal moving mechanism is installed on the machine frame, a lifting mechanism is installed on the horizontal moving mechanism in a sliding mode, a working table is installed on the top of the lifting mechanism, a rotating motor is arranged on the working table, the rotating motor is connected with a rotating shaft, and the rotating shaft is connected with the lifting mechanism. A clamping mechanism is fixed to the end, opposite to the rotating motor, of the rotating shaft, a clamping part is arranged on the side, opposite to the rotating shaft, of the clamping mechanism, a silencer pipe fitting is clamped by the clamping part of the clamping mechanism, a positioning structure is further arranged on the working table, a U-shaped groove is formed in the positioning structure, and the silencer pipe fitting is clamped by the U-shaped groove. And the peripheral side of the silencer pipe fitting is in contact with the interior of the U-shaped groove for positioning. Horizontal and vertical movement and automatic rotating clamping of the silencer are achieved through all the air cylinders and the rotating electric mechanism, and welding efficiency and precision are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to muffler processing device technical field, specifically a movable clamping structure. BACKGROUND

[0002] The automobile muffler is as the important part of the automobile tail, and its structure design has the remarkable influence to the vehicle running noise. The long tubular design is generally adopted, and the end needs to be welded and fixed with the steel wire velvet ring. Since the muffler pipe piece end needs to be welded in four points respectively 90 degrees even division, therefore the traditional fixed clamp cannot satisfy the quick, efficient welding operation demand.

[0003] The widely used muffler welding mould in the market at present mainly adopts the mechanical structure to fix the muffler pipe piece, and cannot directly move or rotate the operation of the muffler pipe piece in the clamping process. This leads to the operation to manually loosen the clamp, find the next welding point and re-clamp, and the operation is complicated, the efficiency is low, and the artificial cost is aggravated.

[0004] The artificial operation mode is inefficient, and the welding time is long. In addition, the welding point position of the prior art is easy to deviate. The operation is complicated, needs repeated positioning and clamping, also affects the deformation of the muffling pipe, causes the quality problem of damage.

[0005] Therefore, it is necessary to provide a movable clamping structure for the muffler pipe piece, which can directly rotate and move the muffler pipe piece in the clamping state, improve the welding efficiency and reduce the artificial cost. UTILITY MODEL CONTENTS

[0006] The utility model provides a movable clamping structure to solve the problems in the above background art.

[0007] In order to realize the above purpose, the utility model adopts the following technical scheme:

[0008] A movable clamping structure, including the frame, the frame is installed with horizontal movement mechanism, the horizontal movement mechanism is installed with lifting mechanism on the sliding, the lifting mechanism top is installed with the workbench, the workbench is equipped with a rotating motor, the rotating motor is connected with the rotating shaft, the rotating shaft opposite one end of rotating motor is fixed with clamping mechanism, the clamping mechanism opposite one side is clamping part, the clamping part of clamping mechanism clamps the muffler pipe piece, the workbench is also equipped with positioning structure, and the positioning structure is equipped with U-shaped groove, and the outer circumferential side of the muffler pipe piece is in contact with the U-shaped groove and is positioned.

[0009] Preferably, the horizontal moving mechanism comprises a pushing cylinder installed in the middle of the upper part of the frame, two slide rails are symmetrically installed on the upper part of the frame on both sides of the pushing cylinder, and two sliding blocks are slidably installed on the two slide rails.

[0010] Preferably, the lifting mechanism comprises a moving table connected and installed on the top of the sliding block, the bottom of the moving table is provided with a connecting plate, the extension end of the pushing cylinder is fixedly connected with the connecting plate, a plurality of lifting cylinders are arranged on the top of the moving table, and the workbench is installed and connected with the extension end of the top of the lifting cylinders. The pushing cylinder pushes and pulls the connecting plate, thereby driving the moving table to move horizontally along the slide rail, the lifting cylinder drives the workbench to move vertically, thereby realizing the position adjustment of the muffler pipe clamped by the clamping mechanism in the vertical and horizontal directions.

[0011] Preferably, two bearing seats are arranged on the workbench, the rotating shaft is movably installed on the bearing seats, a transmission wheel one is fixedly arranged on the rotating shaft between the two bearing seats, the rotating motor is installed on the workbench on one side of the transmission wheel one, a transmission wheel two is fixedly arranged on the output shaft of the rotating motor, and a transmission belt is connected between the transmission wheel one and the transmission wheel two. The rotating motor drives the rotating shaft to rotate through the transmission belt, thereby driving the clamping mechanism and the muffler pipe to rotate.

[0012] Preferably, the clamping mechanism comprises a pneumatic clamp jaw, the pneumatic clamp jaw is provided with two oppositely arranged clamping ends, clamping blocks are arranged on the opposite sides of the two clamping ends, a connecting block one is arranged on the side of the pneumatic clamp jaw opposite to the clamping blocks, a connecting block two is arranged on the end of the rotating shaft close to the pneumatic clamp jaw, and the connecting block one and the connecting block two are threadedly fixedly connected. The pneumatic clamp jaw is also known as a finger air cylinder, which is a mature technology and will not be described here.

[0013] Preferably, the opposite sides of the two clamping blocks are provided with arc-shaped grooves, and the radii of the two arc-shaped grooves are matched with the radius of the outer circumferential surface of the muffler pipe. The clamping blocks and the pneumatic clamp jaw are detachably connected through bolts, and different radii of the clamping blocks are replaced, thereby adapting to different diameters of the muffler pipes for clamping.

[0014] Preferably, a pad is arranged on the side of the pneumatic clamp jaw opposite to the connecting block one, the pad is provided with a mounting hole on the side facing the muffler pipe, a fixing block is mounted in the mounting hole, and the fixing block is connected with the end of the muffler pipe in a butt joint mode. The pad serves to position the end of the muffler pipe facing the clamping mechanism, the fixing block is fixedly mounted with the pad through bolts, and different diameters of the fixing blocks can be replaced to position and connect different diameters of the muffler pipes.

[0015] Preferably, the positioning structure comprises a plurality of supporting frames mounted on the workbench, the U-shaped groove is located in the middle of the supporting frame, a plurality of threaded holes are arranged on the U-shaped groove, and a positioning wheel is detachably mounted on the threaded hole.

[0016] Preferably, the outer side of the positioning wheel is provided with a rubber layer, and the bottom of the rack is provided with a roller at the four corners. The positioning wheel is used for positioning the position of the welded end of the muffler pipe, and can rotate with the positioning wheel when the muffler pipe rotates, preventing the outer side of the muffler pipe from directly contacting and rotating with the supporting frame, causing scratches on the outer side of the muffler pipe. The size of the positioning wheel can be replaced according to the size of the muffler pipe, thereby adapting to the positioning of muffler pipes of different sizes. The roller facilitates the movement of the device as a whole.

[0017] Compared with the prior art, the muffler pipe automatic rotating and clamping device has the following beneficial effects:

[0018] The utility model discloses a push -and -pull work of air cylinder drives slider movement on slide rail to realize the horizontal movement of muffler pipe, and the vertical movement of workbench is driven through the extension of lifting cylinder to realize the vertical adjustment of muffler pipe. Meanwhile, the cooperation of rotating motor and rotating shaft makes the muffler pipe can rotate after being clamped, and the operator can conveniently position the welding point, avoids the complicated operation of traditional fixed -type clamp that needs manual to loosen the clamp and adjust the position, thereby reduce the artificial cost, improve the welding efficiency.

[0019] Through setting up rotating motor, rotating shaft, clamping mechanism and positioning structure, the effect of automatic rotating and clamping of muffler pipe is realized. The rotating motor can drive the rotating shaft to rotate, and the clamping mechanism can rotate with the rotating shaft. The muffler pipe is fixed on the workbench through the clamping part, and the outer periphery of the muffler pipe is in contact with the U-shaped groove to realize accurate positioning. The positioning wheel of corresponding size is installed to adapt to muffler pipes of different sizes, and solve the problems of low efficiency and low precision of manual clamping and rotating. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the whole structure schematic diagram of the utility model;

[0021] Figure 2 It is the horizontal moving mechanism and lifting mechanism structure schematic diagram of the utility model;

[0022] Figure 3 It is the workbench top each device structure schematic diagram of the utility model;

[0023] Figure 4 It is the schematic view of the clamping mechanism structure of the utility model;

[0024] Figure 5 It is the schematic view of the cushion block and the fixed block of the utility model;

[0025] Figure 6 It is the schematic view of the positioning structure of the utility model;

[0026] Figure 7 It is the schematic view of the muffler pipe and the steel wire loop of the utility model;

[0027] 1, workbench;2, rotating motor;3, rotating shaft;4, clamping mechanism;5, muffler pipe;6, steel wire loop;7, positioning structure;8, U-shaped groove;9, bearing seat;10, transmission wheel one;11, transmission wheel two;12, transmission belt;13, connecting block one;14, pneumatic clamping jaw;15, clamping end;16, clamping block;17, cushion block;18, fixed block;19, support frame;20, positioning wheel;21, mounting port;22, arc-shaped groove;23, rack;24, moving table;25, push air cylinder;26, slide rail;27, sliding block;28, lifting air cylinder;29, connecting plate;30, roller;31, horizontal movement mechanism;32, lifting mechanism. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0029] Referring to Figures 1-7 A movable clamping structure, including rack 23, the rack 23 is installed with horizontal movement mechanism 31, the horizontal movement mechanism 31 is slidably installed with lifting mechanism 32, the lifting mechanism 32 top is installed with workbench 1, the workbench 1 is equipped with rotating motor 2, the rotating motor 2 is connected with rotating shaft 3, the rotating shaft 3 opposite rotating motor 2 one end is fixed with clamping mechanism 4, the clamping mechanism 4 opposite rotating shaft 3 one side is clamping part, the clamping mechanism 4 clamping part clamps muffler pipe 5, the workbench 1 is also equipped with positioning structure 7, and the positioning structure 7 is equipped with U-shaped groove 8, and the outer periphery side of muffler pipe 5 is in contact with U-shaped groove 8 and is positioned.

[0030] The horizontal moving mechanism 31 comprises a pushing cylinder 25 installed at the middle position of the upper part of the frame 23, two slide rails 26 symmetrically installed on the upper part of the frame 23 at the two sides of the pushing cylinder 25, and two sliding blocks 27 slidably installed on the two slide rails 26. The extending direction of the pushing cylinder 25 is the same as the sliding direction of the sliding blocks 27.

[0031] The lifting mechanism 32 comprises a moving table 24 connected and installed at the top of the sliding blocks 27, a connecting plate 29 arranged at the bottom of the moving table 24, and the extending end of the pushing cylinder 25 fixedly connected with the connecting plate 29, a plurality of lifting cylinders 28 arranged at the top of the moving table 24, and the extending end of the lifting cylinders 28 fixedly connected with the workbench 1. The pushing cylinder 25 pushes and pulls the connecting plate 29, thereby driving the moving table 24 to move horizontally along the slide rails 26, the lifting cylinders 28 drive the workbench 1 to move vertically, thereby realizing the position adjustment of the muffler pipe 5 held by the clamping mechanism 4 in the vertical and horizontal directions.

[0032] The workbench 1 is provided with two bearing seats 9, the rotating shaft 3 is movably installed on the bearing seats 9, a transmission wheel one 10 is fixedly arranged on the rotating shaft 3 between the two bearing seats 9, the rotating motor 2 is installed on the workbench 1 at one side of the transmission wheel one 10, a transmission wheel two 11 is fixedly arranged on the output shaft of the rotating motor 2, and a transmission belt 12 is connected between the transmission wheel one 10 and the transmission wheel two 11. The rotating motor 2 drives the rotating shaft 3 to rotate through the transmission belt 12, thereby driving the clamping mechanism and the muffler pipe 5 to rotate.

[0033] The clamping mechanism 4 comprises a pneumatic clamping jaw 14, the pneumatic clamping jaw 14 is provided with two oppositely arranged clamping ends 15, the opposite sides of the two clamping ends 15 are both provided with clamping blocks 16, the side opposite to the clamping blocks 16 of the pneumatic clamping jaw 14 is provided with a connecting block one 13, one end of the rotating shaft 3 close to the pneumatic clamping jaw 14 is provided with a connecting block two, and the connecting block one 13 is threadedly fixedly connected with the connecting block two. The pneumatic clamping jaw 14 is also known as a finger air cylinder, which is a mature technology and will not be described here.

[0034] The opposite sides of the two clamping blocks 16 are both provided with arc-shaped grooves 22, the radii of the two arc-shaped grooves 22 are matched with the radius of the outer circumferential surface of the muffler pipe 5. The clamping blocks 16 are detachably connected with the pneumatic clamping jaw 14 through bolts, different radii of the clamping blocks 16 are replaced, thereby adapting to the clamping of muffler pipes 5 with different diameters.

[0035] The pneumatic clamping jaw 14 is provided with a pad 17 opposite to one side of the connecting block 13, the pad 17 is provided with a mounting port 21 towards one side of the muffler pipe 5, the mounting port 21 is mounted with a fixing block 18, and the fixing block 18 is connected with the end of the muffler pipe 5 in a butt joint mode. The fixing block 18 is fixedly mounted with the pad 17 through bolts, and different fixing blocks 18 with different diameters can be used to position and connect the muffler pipes 5 with different diameters.

[0036] The positioning structure 7 comprises a plurality of supporting frames 19 mounted on the workbench 1, the U-shaped grooves 8 are located at the middle positions of the supporting frames 19, the U-shaped grooves 8 are provided with a plurality of threaded holes, and positioning wheels 20 are detachably mounted on the threaded holes. The supporting frames 19 are arranged in a same straight line in front and back, and the muffler pipes 5 are placed in the U-shaped grooves 8 in the same straight line. The supporting frames 19 serve as supports and prevent the muffler pipes 5 from being deviated in position during machining.

[0037] The outer side of the positioning wheel 20 is provided with a rubber layer. The positioning wheel 20 is used for positioning the welding end of the muffler pipe 5, and can rotate with the muffler pipe 5 when the muffler pipe 5 rotates, so that the outer side of the muffler pipe 5 is prevented from being directly contacted with the supporting frame 19 and rotated, and the outer side of the muffler pipe 5 is prevented from being scratched. The size of the positioning wheel 20 can be replaced according to the size of the muffler pipe 5, so that the positioning wheel 20 can be adapted to muffler pipes 5 with different sizes.

[0038] In use, the muffler pipe 5 is placed on the supporting frame 19, the positioning wheel 20 positions the welding end of the muffler pipe 5, the other end of the muffler pipe 5 is connected and mounted on the fixing block 18, the pneumatic clamping jaw 14 clamps the end of the muffler pipe 5, the muffler pipe 5 is clamped and positioned, the steel wool ring 6 is connected to the welding end of the muffler pipe 5, the first point is welded, the rotating motor 2 is started, the transmission belt 12, the transmission wheel one 10 and the transmission wheel two 11 drive the rotating shaft 3 to rotate, and then drive the clamping mechanism 4 and the muffler pipe 5 clamped by the clamping mechanism 4 to rotate by 90°, the second point is welded, the workbench 1 on the slide rail 26 is pushed and pulled by the pushing cylinder 25 during the welding, the muffler pipe 5 on the clamping mechanism is moved in the horizontal direction, the workbench 1 is lifted by the lifting cylinder 28, and the muffler pipe 5 is moved in the vertical direction. The above operations are repeated, and the four-point welding of the muffler pipe 5 and the steel wool ring 6 is completed.

[0039] Wherein, the device of the application plays a positioning role for the muffler pipe 5 and the steel wire wool ring 6, and the additional fixing welding head is not shown in the figure, which is not further refined here, and belongs to the prior art spot welding structure, the fixing and movement of the muffler pipe 5 and the steel wire wool ring 6 are realized by the moving structure of the application, and the butt welding of the fixed spot welding head is realized.

[0040] The utility model discloses a through each cylinder and rotary motor 2 structure realizes the horizontal and vertical movement and automatic rotation clamping of muffler pipe 5, improves the welding efficiency and precision.

[0041] For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0042] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A mobile clamping structure, characterized by: The utility model provides a kind of silencer pipe fitting rotating mechanism, including horizontal moving mechanism (31), it is characterized in that, lifting mechanism (32) is slidably installed on the horizontal moving mechanism (31), workbench (1) is installed on the top of lifting mechanism (32), workbench (1) is equipped with a rotating motor (2), rotating motor (2) is connected with rotating shaft (3), rotating shaft (3) is fixed with clamping mechanism (4) on the end opposite to rotating motor (2), the side opposite to clamping mechanism (4) of rotating shaft (3) is clamping part, the clamping part of clamping mechanism (4) clamps silencer pipe fitting (5), workbench (1) is also equipped with positioning structure (7), and U-shaped groove (8) is equipped on the positioning structure (7), and the periphery side of silencer pipe fitting (5) is in contact with U-shaped groove (8) and is positioned.

2. The mobile clamping structure according to claim 1, wherein The horizontal moving mechanism (31) includes a push cylinder (25) installed at the middle of the upper part of the rack (23), two slide rails (26) are symmetrically installed on the rack (23) on both sides of the push cylinder (25), and two slide blocks (27) are slidably installed on the two slide rails (26).

3. The mobile clamping structure according to claim 2, wherein The lifting mechanism (32) includes a moving platform (24) connected and installed on the top of the slide block (27), the moving platform (24) is provided with a connecting plate (29) at the bottom, and the telescopic end of the push cylinder (25) is fixedly connected with the connecting plate (29), a plurality of lifting cylinders (28) are arranged on the top of the moving platform (24), and the workbench (1) is installed and connected with the telescopic end on the top of the lifting cylinders (28).

4. The mobile clamping structure according to claim 3, wherein The workbench (1) is provided with two bearing seats (9), the rotating shaft (3) is movably installed on the bearing seat (9), a transmission wheel one (10) is fixed on the rotating shaft (3) between the two bearing seats (9), the rotating motor (2) is installed on the workbench (1) on one side of the transmission wheel one (10), a transmission wheel two (11) is fixed on the output shaft of the rotating motor (2), and the transmission belt (12) is connected between the transmission wheel one (10) and the transmission wheel two (11).

5. The mobile clamping structure according to claim 4, wherein The clamping mechanism (4) includes a pneumatic clamp jaw (14), the pneumatic clamp jaw (14) is provided with two opposite clamping ends (15), the opposite sides of the two clamping ends (15) are provided with clamping blocks (16), the side opposite to the clamping blocks (16) of the pneumatic clamp jaw (14) is provided with a connecting block one (13), one end of the rotating shaft (3) close to the pneumatic clamp jaw (14) is provided with a connecting block two, and the connecting block one (13) and the connecting block two are threadedly fixedly connected.

6. The mobile clamping structure according to claim 5, wherein The opposite sides of the two clamping blocks (16) are provided with arc grooves (22), and the radii of the two arc grooves (22) are matched with the radius of the outer circumferential surface of the silencer pipe fitting (5).

7. The mobile clamping structure according to claim 6, wherein The side opposite to the connecting block one (13) of the pneumatic clamp jaw (14) is provided with a pad (17), the side of the pad (17) facing the silencer pipe fitting (5) is provided with a mounting port (21), a fixed block (18) is mounted in the mounting port (21), and the fixed block (18) is connected with the end of the silencer pipe fitting (5).

8. The mobile clamping structure according to claim 7, wherein The positioning structure (7) comprises a plurality of supporting frames (19) mounted on the workbench (1), the U-shaped groove (8) is located at the middle position of the supporting frame (19), a plurality of threaded holes are arranged on the U-shaped groove (8), and a positioning wheel (20) is detachably mounted on the threaded hole.

9. The mobile clamping structure according to claim 8, wherein The outer side of the positioning wheel (20) is provided with a rubber layer, and the bottom of the rack (23) is provided with a plurality of rollers (30).

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