CN214558798U

CN214558798U - Tubular workpiece clamp for automobile welding

Info

Publication number: CN214558798U
Application number: CN202120955926.1U
Authority: CN
Inventors: 张飞干; 蒋娟红
Original assignee: Bengbu Qianyan Mechanical Equipment Co ltd
Current assignee: Bengbu Qianyan Mechanical Equipment Co ltd
Priority date: 2021-05-07
Filing date: 2021-05-07
Publication date: 2021-11-02
Anticipated expiration: 2031-05-07

Abstract

The utility model discloses a tubulose work piece holder for automobile welding, which comprises a base, base upper end one side sliding connection has first fixed plate, one side fixedly connected with second fixed plate of first fixed plate is kept away from to the base upper end, the side that first fixed plate is close to the second fixed plate is provided with hydraulic chuck, the hydraulic chuck side is provided with rotary driving mechanism, the base upper end is connected with the sleeve through the bearing, be provided with drive arrangement on the sleeve, sleeve female connection has the lead screw, the fixed clamp of lead screw upper end fixedly connected with. This kind of tubular workpiece anchor clamps is used in car welding can utilize first motor to drive hydraulic chuck rotatory to it realizes rotatoryly to drive the work piece, can rotate according to the welding needs, avoids appearing the welding dead angle, improves the welding effect, makes things convenient for the staff operation.

Description

Tubular workpiece clamp for automobile welding

Technical Field

The utility model relates to an automobile welding technical field specifically is a tubulose work piece holder is used in car welding.

Background

In the production process of an automobile, a plurality of tubular workpieces need to be welded, such as an air inlet pipe, a filter bin, a tail pipe and the like, when the tubular workpieces are welded, a welding fixture needs to be utilized, and because the tubular workpieces are in a round tubular shape, a common fixture is not easy to tightly clamp, when the tubular workpieces are welded, the fixture needs to be specially designed for the tubular workpieces, but the sizes of all the tubular workpieces are different, the clamping sizes of most of the fixtures are fixed, the application range of the fixture is limited, the cost is increased, in addition, the tubular workpieces can be required to rotate for 360 degrees during welding, the common fixture is difficult to flexibly rotate, the welding is caused to have dead angles, and the welding strength is insufficient. Therefore, the tubular workpiece clamp for automobile welding is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tubulose work piece holder is used in car welding to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a tubular workpiece clamp for automobile welding comprises a base, wherein a first fixing plate is connected to one side of the upper end of the base in a sliding manner, a second fixing plate is fixedly connected to one side, far away from the first fixing plate, of the upper end of the base, a fixing groove is formed in the side face, close to the first fixing plate, of the second fixing plate, an air cylinder is fixedly connected to the upper end of the base, a piston rod is arranged on the side face of the air cylinder, the end portion of the piston rod is fixedly connected to the side face, far away from the second fixing plate, of the first fixing plate, a hydraulic chuck is arranged on the side face, close to the second fixing plate, a hydraulic driving mechanism is arranged inside the hydraulic chuck, a through hole is formed in the middle of the hydraulic chuck, clamping jaws are arranged on the hydraulic chuck, at least three clamping jaws are arranged in a ring shape, an arc-shaped clamping plate is fixedly connected to the end portions of the clamping jaws, a rotary driving mechanism is arranged on the side face of the hydraulic chuck, the base upper end is connected with the sleeve through the bearing, the sleeve sets up to at least two, be provided with drive arrangement on the sleeve, sleeve internal thread connection has the lead screw, the fixed clamp of lead screw upper end fixedly connected with, be provided with rotatory auxiliary device on the fixed clamp inner wall.

Preferably, a sliding groove is formed in one side of the upper end of the base, a sliding block is fixedly connected to the bottom end of the first fixing plate, and the sliding block is connected in the sliding groove in a sliding mode.

Preferably, rotary driving mechanism includes backup pad, first motor and pivot, backup pad fixed connection keeps away from the side of second fixed plate at first fixed plate, first motor fixed connection is in the backup pad upper end, first motor side transmission is connected with the pivot, the pivot runs through first fixed plate setting and tip and passes through coupling mechanism and hydraulic chuck fixed connection.

Preferably, the driving device comprises a second motor, a transmission shaft, a first bevel gear, a second bevel gear and a belt, the second motor is fixedly connected to the upper end of the base, the transmission shaft is connected to the side face of the second motor in a transmission mode, the first bevel gear is arranged at the end of the transmission shaft, the second bevel gear is arranged at the bottom of the sleeve, the first bevel gear and the second bevel gear are meshed with each other, and the belt is arranged between the adjacent sleeves.

Preferably, rotatory auxiliary device includes recess, connecting axle and cylinder, fixed clamp is the arc, be provided with the recess of a plurality of equidistant range on the fixed clamp inner wall, it is provided with the connecting axle to run through in the recess, it is connected with the cylinder to rotate on the connecting axle, the cylinder is provided with a plurality of and equidistant range.

Preferably, a rubber pad is arranged on the inner wall of the fixing groove.

Compared with the prior art, the beneficial effects of the utility model are that: the tubular workpiece clamp for automobile welding drives the first fixing plate to move through the cylinder, so that the distance between the first fixing plate and the second fixing plate is changed to adapt to workpieces of different sizes, the application range of the clamp is improved, one end of the tubular workpiece penetrates through a through hole of the hydraulic chuck, one end of the workpiece is clamped by a clamping jaw of the hydraulic chuck, the other end of the workpiece is fixed by a fixing groove on the second fixing plate, the two ends of the workpiece are clamped, the workpiece is more stable, in addition, when the workpiece needs to rotate, the hydraulic chuck is driven to rotate by the first motor, the workpiece is driven to rotate, the workpiece can rotate according to welding needs, welding dead angles are avoided, in addition, the change of the height of a fixing clamp is realized by the thread fit of a sleeve and a screw rod, the fixing clamp is enabled to adapt to workpieces of different sizes while supporting the bottom of the tubular workpiece, improve the welding effect, make things convenient for the staff operation.

Drawings

Fig. 1 is a front sectional view of the present invention;

FIG. 2 is a side view of the hydraulic chuck of the present invention;

fig. 3 is a schematic perspective view of the fixing clip of the present invention.

In the figure: the device comprises a base 1, a first fixing plate 2, a sliding groove 3, a sliding block 4, a cylinder 5, a piston rod 6, a second fixing plate 7, a fixing groove 8, a hydraulic chuck 9, a through hole 10, a jaw 11, an arc-shaped clamping plate 12, a rotary driving mechanism 13, a supporting plate 14, a first motor 15, a rotating shaft 16, a sleeve 17, a screw rod 18, a driving device 19, a second motor 20, a transmission shaft 21, a first bevel gear 22, a second bevel gear 23, a belt 24, a fixing clamp 25, a rotary auxiliary device 26, a groove 27, a connecting shaft 28 and a roller 29.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a tubular workpiece clamp for automobile welding comprises a base 1, wherein a first fixing plate 2 is connected to one side of the upper end of the base 1 in a sliding mode, a second fixing plate 7 is fixedly connected to one side, far away from the first fixing plate 2, of the upper end of the base 1, and the first fixing plate 2 can be driven to slide on the upper end of the base 1 by a sliding structure at the bottom of the first fixing plate 2, so that the distance between the first fixing plate 2 and the second fixing plate 7 is changed, and the tubular workpiece clamp is suitable for workpieces with different lengths;

a fixing groove 8 is formed in the side face, close to the first fixing plate 2, of the second fixing plate 7, one end of a tubular workpiece can be clamped in the fixing groove 8, one end of the tubular workpiece is supported, the stability is improved, the welding precision is improved, a buffer device can be arranged in the fixing groove 8, the phenomenon that the end part of the workpiece is damaged due to friction between the end part of the workpiece and the side wall of the fixing groove 8 is avoided, when the end part of the workpiece needs to be machined, the end part of the workpiece does not need to be clamped in the fixing groove 8, the position, relative to the second fixing plate 7, of the first fixing plate 2 is adjusted through the air cylinder 5, the end part of the workpiece is exposed outside, and the end part can be machined conveniently;

the upper end of the base 1 is fixedly connected with an air cylinder 5, the side surface of the air cylinder 5 is provided with a piston rod 6, the end part of the piston rod 6 is fixedly connected with the side surface of the first fixing plate 2 far away from the second fixing plate 7, and the air cylinder 5 can drive the piston rod 6 to drive the first fixing plate 2 to horizontally move, so that the distance between the first fixing plate 2 and the second fixing plate 7 is changed;

a hydraulic chuck 9 is arranged on the side surface, close to the second fixing plate 7, of the first fixing plate 2, a hydraulic driving mechanism is arranged inside the hydraulic chuck 9, a through hole 10 is formed in the middle of the hydraulic chuck 9, clamping jaws 11 are arranged on the hydraulic chuck 9, the clamping jaws 11 are at least three and are arranged in a ring shape, arc-shaped clamping plates 12 are fixedly connected to the end portions of the clamping jaws 11, one end of a tubular workpiece is placed in the through hole 10, and the hydraulic driving mechanism in the hydraulic chuck 9 can drive the clamping jaws 11 to synchronously move towards the direction close to the center of a circle or away from the center of a circle, so that the arc-shaped clamping plates 12 clamp the tubular workpiece in the through hole 10 or loosen the tubular workpiece;

the side surface of the hydraulic chuck 9 is provided with a rotary driving mechanism 13, and the rotary driving mechanism 13 is fixedly connected with the side surface of the hydraulic chuck 9 through a connecting device, so that the hydraulic chuck 9 is driven to rotate, a tubular workpiece can be driven to rotate according to welding requirements, and the welding precision is improved;

the upper end of the base 1 is connected with at least two sleeves 17 through a bearing, the sleeves 17 are provided with driving devices 19, the sleeves 17 are internally connected with screw rods 18 in a threaded manner, the upper ends of the screw rods 18 are fixedly connected with fixing clamps 25, and the screw rods 18 are provided with limiting devices, so that when the sleeves 17 rotate, the screw rods 18 can only move up and down in the vertical direction, the driving devices 19 can drive the sleeves 17 to rotate, the screw rods 18 move up or down, the height of the fixing clamps 25 is changed, the clamping device is suitable for workpieces with different sizes, until the fixing clamps 25 abut against the bottoms of the workpieces, the bottoms of the workpieces are supported, and the clamping stability of the clamping device is improved;

the rotation assisting means 26 is provided on the inner wall of the fixed yoke 25, and when the workpiece is rotated by the rotation driving mechanism 13, the rotation assisting means 26 in the fixed yoke 25 can reduce the friction between the workpiece and the fixed yoke 25, thereby facilitating the rotation of the workpiece.

When the clamping device is used, one end of a workpiece is inserted into the through hole 10 on the hydraulic chuck 9, a hydraulic driving structure in the hydraulic chuck 9 is started, the clamping jaws 11 move towards the direction close to the center of a circle until the arc-shaped clamping plates 12 clamp and fix the end of the workpiece, then the driving device 19 is used for driving the sleeve 17 to rotate, the lead screw 18 moves upwards or downwards, the height of the fixed clamp 25 is changed until the fixed clamp 25 abuts against the bottom of the workpiece, the bottom of the workpiece is supported, the clamping stability of the workpiece is improved, if the end of the workpiece needs to be welded, the cylinder 5 is used for driving the piston rod 6 to drive the first fixing plate 2 to be away from the second fixing plate 7, the end of the workpiece is exposed outside, the end is convenient to be machined, if the side face of the workpiece needs to be machined, the cylinder 5 is used for driving the piston rod 6 to drive the first fixing plate 2 to be close to the second fixing plate 7, make the other end joint of work piece in fixed slot 8, realize the both ends centre gripping to the work piece, weld again, in welding process, if the rotatory tubulose work piece of needs, then start rotation driving mechanism 13, utilize rotation driving mechanism 13 to drive hydraulic chuck 9 rotatory to realize the rotation of work piece, rotatory auxiliary device 26 in the fixed clamp 25 can reduce the frictional force between work piece and the fixed clamp 25 simultaneously, and the work piece of being convenient for is rotatory.

Further, 1 upper end one side of base is provided with

spout

3, 2 bottom fixedly connected with sliders 4 of first fixed plate, and slider 4 sliding connection is in spout 3, and slider 4 and spout 3 mutually support, play spacing guide effect to the removal of first fixed plate 2.

Further, the rotation driving mechanism 13 includes a supporting plate 14, a first motor 15 and a rotating shaft 16, the supporting plate 14 is fixedly connected to the side of the first fixing plate 2 far from the second fixing plate 7, the first motor 15 is fixedly connected to the upper end of the supporting plate 14, the rotating shaft 16 is connected to the side of the first motor 15 in a transmission manner, the rotating shaft 16 penetrates through the first fixing plate 2 and the end of the rotating shaft is fixedly connected to the hydraulic chuck 9 through a connecting mechanism, the first motor 15 is a speed reducing motor capable of rotating forward and backward, the rotating shaft 16 is fixedly connected to the side of the hydraulic chuck 9 through a power line external power supply and a control switch, and the connecting point of the connecting mechanism and the hydraulic chuck 9 can be arranged at the edge of the hydraulic chuck 9 to avoid hindering the clamping of the workpiece, meanwhile, the connecting points can be arranged in a plurality and annular arrangement, so as to improve the stability of the rotation of the hydraulic chuck 9, the first motor 15 drives the rotating shaft 16 to rotate, under the action of the connecting mechanism, the hydraulic chuck 9 is driven to rotate.

Further, the driving device 19 includes a second motor 20, a transmission shaft 21, a first bevel gear 22, a second bevel gear 23 and a belt 24, the second motor 20 is fixedly connected to the upper end of the base 1, the transmission shaft 21 is in transmission connection with the side surface of the second motor 20, the end portion of the transmission shaft 21 is provided with the first bevel gear 22, the bottom of one of the sleeves 17 is provided with the second bevel gear 23, the first bevel gear 22 and the second bevel gear 23 are arranged in a meshed manner, the belt 24 is arranged between adjacent sleeves 17, the second motor 20 is a forward and reverse rotation speed reduction motor, the transmission shaft 21 is driven to rotate by the second motor 20 through a power line external power supply and a control switch, the sleeves 17 are driven to rotate under the meshing effect of the first bevel gear 22 and the second bevel gear 23, and the multiple sleeves 17 are simultaneously rotated under the effect of the belt 24.

Further, rotatory auxiliary device 26 includes recess 27, connecting axle 28 and cylinder 29, fixed clamp 25 is the arc, be provided with the recess 27 of a plurality of equidistant range on the fixed clamp 25 inner wall, run through being provided with connecting axle 28 in the recess 27, it is connected with cylinder 29 to rotate on the connecting axle 28, cylinder 29 is provided with a plurality of and equidistant range, when the work piece is in fixed clamp 25 internal rotation, cylinder 29 with the work piece contact rotates on connecting axle 28, turn into rolling friction with sliding friction, because rolling friction coefficient is little, thereby realize reducing frictional force's purpose, it is rotatory to be convenient for the work piece.

Furthermore, a rubber pad is arranged on the inner wall of the fixed groove 8, so that the workpiece is prevented from being rubbed with the fixed groove 8, and the workpiece is prevented from being damaged.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a tubular work piece holder for automobile welding, includes base (1), its characterized in that: the device is characterized in that a first fixing plate (2) is slidably connected to one side of the upper end of a base (1), a second fixing plate (7) is fixedly connected to one side, away from the first fixing plate (2), of the upper end of the base (1), a fixing groove (8) is formed in the side, close to the first fixing plate (2), of the second fixing plate (7), an air cylinder (5) is fixedly connected to the upper end of the base (1), a piston rod (6) is arranged on the side of the air cylinder (5), the end of the piston rod (6) is fixedly connected to the side, away from the second fixing plate (7), of the first fixing plate (2), a hydraulic chuck (9) is arranged on the side, close to the second fixing plate (7), of the first fixing plate (2), a hydraulic driving mechanism is arranged inside the hydraulic chuck (9), a through hole (10) is formed in the middle of the hydraulic chuck (9), and a clamping jaw (11) is arranged on the hydraulic chuck (9), jack catch (11) are at least three and are the annular and arrange, jack catch (11) tip fixedly connected with arc cardboard (12), hydraulic chuck (9) side is provided with rotary driving mechanism (13), base (1) upper end is connected with sleeve (17) through the bearing, sleeve (17) set up to at least two, be provided with drive arrangement (19) on sleeve (17), sleeve (17) internal connection has lead screw (18), clamp (25) are fixed to lead screw (18) upper end fixedly connected with, be provided with rotatory auxiliary device (26) on fixed clamp (25) inner wall.

2. The tubular workpiece holder for automobile welding as set forth in claim 1, wherein: base (1) upper end one side is provided with spout (3), first fixed plate (2) bottom fixedly connected with slider (4), slider (4) sliding connection is in spout (3).

3. The tubular workpiece holder for automobile welding as set forth in claim 1, wherein: rotary driving mechanism (13) include backup pad (14), first motor (15) and pivot (16), the side of second fixed plate (7) is kept away from in backup pad (14) fixed connection at first fixed plate (2), first motor (15) fixed connection is in backup pad (14) upper end, first motor (15) side transmission is connected with pivot (16), pivot (16) run through first fixed plate (2) and set up and the tip passes through coupling mechanism and hydraulic chuck (9) fixed connection.

4. The tubular workpiece holder for automobile welding as set forth in claim 1, wherein: the driving device (19) comprises a second motor (20), a transmission shaft (21), a first bevel gear (22), a second bevel gear (23) and a belt (24), the second motor (20) is fixedly connected to the upper end of the base (1), the transmission shaft (21) is connected to the side face of the second motor (20) in a transmission mode, the first bevel gear (22) is arranged at the end of the transmission shaft (21), the second bevel gear (23) is arranged at the bottom of the sleeve (17), the first bevel gear (22) and the second bevel gear (23) are arranged in a meshed mode, and the belt (24) is arranged between the adjacent sleeves (17).

5. The tubular workpiece holder for automobile welding as set forth in claim 1, wherein: rotatory auxiliary device (26) include recess (27), connecting axle (28) and cylinder (29), fixed clamp (25) are the arc, be provided with recess (27) that a plurality of equidistant range were arranged on fixed clamp (25) inner wall, run through being provided with connecting axle (28) in recess (27), it is connected with cylinder (29) to rotate on connecting axle (28), cylinder (29) are provided with a plurality of and equidistant range.

6. The tubular workpiece holder for automobile welding as set forth in claim 1, wherein: and a rubber pad is arranged on the inner wall of the fixed groove (8).