Mechanical clamping jaw mechanism for double-jaw long pipe fitting

Abstract

The utility model discloses a mechanical clamping jaw mechanism for a double-jaw long pipe fitting. Relates to the field of mechanical clamping jaws. In order to solve the problems that an existing mechanical clamping jaw can only grab one point position of a long pipe fitting when grabbing the long pipe fitting, and the balance of the grabbed pipe fitting cannot be well guaranteed, the double-jaw mechanical clamping jaw mechanism for the long pipe fitting is provided. The pipe fitting mechanical clamping device comprises a connecting arm and an operating table, the top of the operating table is fixedly connected with the connecting arm, a motor and a pipe fitting mechanical clamping jaw assembly are arranged at the bottom of the operating table, an output shaft of the motor is connected with a gear, the gear is connected with a driving chain, and the pipe fitting mechanical clamping jaw assembly comprises a longitudinal support, a clamping jaw mounting plate, a clamping jaw driving mechanism and a rubber jaw. Clamping jaw installation plates are installed between the two longitudinal supports, the clamping jaw installation plates are fixedly connected with the rubber jaws, a clamping jaw driving mechanism is installed between the two clamping jaw installation plates, and the two rubber jaws horizontally slide between the two longitudinal supports through the clamping jaw driving mechanism. The long pipe fitting mechanical clamping jaw is applied to the field of long pipe fitting mechanical clamping jaws.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipe fitting clamping field, concretely relates to a double-claw long pipe fitting mechanical clamping jaw mechanism. BACKGROUND

[0002] When the mechanical clamping jaw is used to grab the pipe fitting, compared with manual handling, the mechanical clamping jaw can quickly grab the steel pipe and can work continuously for a long time, which greatly improves the production efficiency. At the same time, through accurate programming and control, the mechanical claw can place the steel pipe at the specified position with high precision.

[0003] At present, when a single-arm mechanical arm is used to grab the long pipe fitting through the mechanical clamping jaw, the pipe fitting is grabbed by single-point grabbing, that is, only one point of the pipe fitting can be grabbed, and the balance of the grabbed pipe fitting cannot be well guaranteed. Moreover, due to the long length of the long pipe fitting, the mechanical clamping jaw may cause the pipe fitting to tilt, deviate, etc. when grabbing the long pipe fitting. In the scene where the pipe fitting needs to be accurately installed, such as the butt joint of the long pipe fitting and other components in the automatic production line, the positional deviation will cause the installation to fail.

[0004] At the same time, compared with the short pipe fitting, the long pipe fitting is more likely to shake after being grabbed by the mechanical clamping jaw due to the characteristics of its length and weight distribution. This increases the risk of falling and collision during transportation or assembly. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of double-claw long pipe fitting mechanical clamping jaw mechanisms to solve the problem that existing mechanical clamping jaw can only grab one point of long pipe fitting when grabbing long pipe fitting, and the balance of the grabbed pipe fitting cannot be well guaranteed.

[0006] The technical scheme of the utility model is as follows:

[0007] A double-claw long pipe fitting mechanical clamping jaw mechanism, which comprises a connecting arm and an operating table, the top of the operating table is fixedly connected with the connecting arm, the bottom of the operating table is provided with a motor and a pipe fitting mechanical clamping jaw assembly respectively, the motor is installed on the longitudinal center line of the operating table, and the pipe fitting mechanical clamping jaw assembly is arranged on both sides of the operating table.

[0008] The output shaft of the motor is connected with a gear, a driving chain is rotatably connected to the gear, the driving chain is connected with the pipe fitting mechanical clamping jaw assembly at both ends below the operating table, and the motor drives the driving chain through the gear.

[0009] Further, the pipe fitting mechanical clamping jaw assembly comprises a longitudinal support, a clamping jaw mounting plate, a clamping jaw driving mechanism and a rubber claw.

[0010] The longitudinal support and the jaw driving mechanism are vertically connected with the bottom of the operation table respectively, the jaw mounting plates are installed between the two longitudinal supports on the same side, the longitudinal support and the jaw mounting plate are arranged in parallel, the rubber jaws are fixedly connected with the jaw mounting plates, the jaw driving mechanisms are installed between the two jaw mounting plates on the same side, and the two rubber jaws on the same side slide horizontally between the two longitudinal supports through the jaw driving mechanisms.

[0011] Further, the jaw driving mechanism comprises a threaded sleeve, a propelling screw, a sleeve bearing seat and a sprocket wheel.

[0012] The middle position of the threaded sleeve is fixedly connected with the sprocket wheel as an integral structure, the threaded sleeve is rotationally connected with the sleeve bearing seat, two propelling screws are screwed into the threaded sleeve through a threaded structure, and the threaded sleeve drives the two propelling screws on the two sides to move synchronously in rotation.

[0013] Further, the end of the propelling screw is vertically connected with the jaw mounting plate, and when the propelling screw is pushed, the rubber jaw on the jaw mounting plate is moved through the propelling screw.

[0014] Further, the wheel center of the sprocket wheel is fixedly connected with the middle position of the threaded sleeve, and the driving chain is sleeved on the sprocket wheel, and when the driving chain is driven, the sprocket wheels on the two sides of the threaded sleeve are driven to rotate.

[0015] Further, the positioning sliding rods are vertically connected between the two longitudinal supports on the same side, and the positioning sliding rods are at least two and are on the same horizontal plane.

[0016] Further, the linear bearing is installed on the jaw mounting plate, the positioning sliding rod is slidably connected in the linear bearing, and the linear bearing drives the jaw mounting plate to move when sliding on the positioning sliding rod.

[0017] Further, the mounting hole is formed in the jaw mounting plate, the bolt assembly is penetrated into the mounting hole, and the jaw mounting plate and the rubber jaw are fixedly connected through the bolt assembly.

[0018] Further, the rubber jaw is in a T-shaped structure as a whole, and the V-shaped clamping opening is formed in the longitudinal plane of the rubber jaw.

[0019] Further, the motor is fixedly connected with the motor mounting seat, and the motor mounting seat is fixed on the bottom of the operation table.

[0020] Compared with the prior art, the utility model has the following effects:

[0021] The utility model discloses a pipe mechanical gripper assembly is arranged below the operating platform symmetrically, and the long pipe can be grabbed through the structure, and the long pipe is grabbed according to the design, and the structure is simple and reliable, and synchronous action can be realized through the drive of single motor, saves electric energy, and the position of the long pipe near both ends can be grabbed, so that the long pipe is firmly grabbed, and the pertinence is strong, and the stability is balanced, and the better excellence is had.

[0022] The two pipe mechanical gripper assemblies of the utility model act on the long pipe simultaneously, can apply clamping force evenly from both sides, and reduce the shaking of the long pipe.

[0023] The detachable structure is adopted between the rubber gripper and the gripper mounting plate, the installation and replacement of the rubber gripper are convenient, the rubber material is used for the rubber gripper, V-shaped openings are formed in the rubber gripper, marks are not left on the surface of the pipe during the clamping of the long pipe, and the appearance and quality of the pipe are not affected.

[0024] When the motor drives the gear to rotate, the driving chain on the gear simultaneously drives the chain wheels on both sides to rotate, the center of the chain wheel is fixedly connected with the threaded sleeve, the threaded sleeve is driven by the chain wheel to rotate, the threaded sleeve pushes the matched push screws, the push screws on both sides are screwed into the threaded sleeve, and the push screws drive the gripper mounting plate to move synchronously when moving, so that the rubber grippers on the two gripper mounting plates are close to each other, and the long pipe is clamped. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the structural schematic diagram of the utility model;

[0026] Figure 2 It is Figure 1 A-A section view in the

[0027] Figure 3 It is Figure 1 The side view of

[0028] Figure 4 It is the connection section view of threaded sleeve and chain wheel;

[0029] Figure 5 It is the structural schematic diagram of rubber gripper;

[0030] Figure 6 It is Figure 5 The side view of

[0031] In the figure: 1, connecting arm, 2, operation table, 3, motor, 4, gear, 5, drive chain, 6, longitudinal support, 7, jaw mounting plate, 8, jaw drive mechanism, 9, rubber jaw, 10, positioning slide rod, 11, linear bearing, 12, bolt assembly, 13, motor mounting seat, 81, threaded sleeve, 82, push screw, 83, sleeve bearing seat, 84, sprocket. DETAILED DESCRIPTION

[0032] To make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, and the following embodiments are used to illustrate the utility model but not to limit the scope of the utility model.

[0033] DETAILED DESCRIPTION Figure 1 — Figure 3 In this embodiment, the double-jaw long pipe mechanical jaw mechanism of this embodiment comprises a connecting arm 1 and an operation table 2, the top of the operation table 2 is fixedly connected with the connecting arm 1, the bottom of the operation table 2 is respectively provided with a motor 3 and a pipe mechanical jaw assembly, the motor 3 is installed on the longitudinal center line of the operation table 2, and the pipe mechanical jaw assembly is arranged on both sides of the operation table 2.

[0034] The output shaft of the motor 3 is connected with a gear 4, the gear 4 is rotationally connected with a drive chain 5, the drive chain 5 is connected with the pipe mechanical jaw assemblies at both ends below the operation table 2, and the motor 3 drives the drive chain 5 through the gear 4.

[0035] The output shaft of the motor 3 drives the gear 4 to rotate, the gear 4 is connected with the drive chain 5, the drive chain 5 is connected with the sprocket 84 on the threaded sleeve 81, when the gear 4 rotates, the sprocket 84 on the threaded sleeve 81 is driven to rotate synchronously through the drive chain 5 on the gear 4, so as to drive the jaw drive mechanism 8 on the pipe mechanical jaw assembly to move, and the rubber jaw 9 is driven to move to grab the long pipe.

[0036] DETAILED DESCRIPTION Figure 1 — Figure 3 In this embodiment, the double-jaw long pipe mechanical jaw mechanism of this embodiment comprises a connecting arm 1 and an operation table 2, the top of the operation table 2 is fixedly connected with the connecting arm 1, the bottom of the operation table 2 is respectively provided with a motor 3 and a pipe mechanical jaw assembly, the motor 3 is installed on the longitudinal center line of the operation table 2, and the pipe mechanical jaw assembly is arranged on both sides of the operation table 2.

[0037] The longitudinal support 6 and the clamping jaw driving mechanism 8 are vertically connected with the bottom of the operation table 2, the clamping jaw mounting plate 7 is installed between the two longitudinal supports 6 on the same side, the longitudinal supports 6 and the clamping jaw mounting plate 7 are arranged in parallel, the rubber jaw 9 is fixedly connected with the clamping jaw mounting plate 7, the clamping jaw driving mechanism 8 is installed between the two clamping jaw mounting plates 7 on the same side, and the two rubber jaws 9 on the same side slide horizontally between the two longitudinal supports 6 through the clamping jaw driving mechanism 8.

[0038] The longitudinal support 6 is fixedly connected with the operation table 2 in an integrated manner by welding, and the longitudinal support 6 is arranged below the operation table 2 and used for mounting the clamping jaw driving mechanism 8.

[0039] Specific implementation three: combined Figure 1 — Figure 3 In this embodiment, the double-claw long pipe mechanical clamping jaw mechanism comprises a threaded sleeve 81, a propelling screw 82, a sleeve bearing seat 83 and a chain wheel 84.

[0040] The middle position of the threaded sleeve 81 is fixedly connected with the chain wheel 84 in an integrated structure, the threaded sleeve 81 is rotationally connected with the sleeve bearing seat 83, two propelling screws 82 are screwed into the threaded sleeve 81 through a threaded structure, and the threaded sleeve 81 drives the two propelling screws 82 on the two sides to move synchronously in rotation.

[0041] The chain wheel 84 is fixed on the outer pipe surface of the threaded sleeve 81 by welding, when the chain wheel 84 rotates, the threaded sleeve 81 is driven to rotate, and the propelling screw 82 is connected with the threaded sleeve 81 through a threaded structure, wherein the two propelling screws 82 on the same side are reverse threaded structures, so that when the threaded sleeve 81 rotates, the two propelling screws 82 are horizontally pushed to move by the threaded sleeve 81, thereby driving the rubber jaw 9.

[0042] Specific implementation four: combined Figure 1 — Figure 3 In this embodiment, the double-claw long pipe mechanical clamping jaw mechanism, the end of the propelling screw 82 is vertically connected with the clamping jaw mounting plate 7, and when the propelling screw 82 is pushed, the rubber jaw 9 on the clamping jaw mounting plate 7 is moved by the propelling screw 82.

[0043] The tail of the propelling screw 82 is fixed on the plate surface of the clamping jaw mounting plate 7 by welding, when the propelling screw 82 moves, the two clamping jaw mounting plates 7 on the two sides are synchronously moved by the propelling screw 82, so as to open and close the rubber jaw 9 and complete the grabbing work of the pipe.

[0044] Specific implementation five: combined Figure 4The embodiment is explained, and the double-claw long pipe mechanical clamping jaw mechanism of the embodiment is characterized in that the chain wheel 84 is fixedly connected to the middle position of the threaded sleeve 81, and the driving chain 5 is sleeved on the chain wheel 84.

[0045] The outer pipe surface of the threaded sleeve 8 is fixed on the inner ring surface of the rolling bearing on the sleeve bearing seat 83, so that the threaded sleeve 8 can rotate between the two sleeve bearing seats 83.

[0046] Specific implementation six: in combination Figure 1 Figure 3 The embodiment is explained, and the double-claw long pipe mechanical clamping jaw mechanism of the embodiment is characterized in that the positioning slide rod 10 is vertically connected between the two longitudinal supports 6 on the same side, and there are at least two positioning slide rods 10, and the two positioning slide rods 10 are on the same horizontal plane.

[0047] The positioning slide rod 10 is a solid metal rod, and the two ends of the positioning slide rod 10 are fixed on the plate surface of the longitudinal support 6. The positioning slide rod 10 plays a positioning role on the clamping jaw mounting plate 7, so that the clamping jaw mounting plate 7 can move in the horizontal direction.

[0048] Specific implementation seven: in combination Figure 1 Figure 3 The embodiment is explained, and the double-claw long pipe mechanical clamping jaw mechanism of the embodiment is characterized in that the linear bearing 11 is installed on the clamping jaw mounting plate 7, the positioning slide rod 10 is slidably connected in the linear bearing 11, and the linear bearing 11 drives the clamping jaw mounting plate 7 to move when sliding on the positioning slide rod 10.

[0049] A hole position for installing the linear bearing 11 is formed in the clamping jaw mounting plate 7, the linear bearing 11 is fixed in the hole position, the inner side of the linear bearing 11 slides on the positioning slide rod 10, and the linear bearing 11 is arranged to facilitate the sliding of the clamping jaw mounting plate 7 on the positioning slide rod 10.

[0050] Specific implementation eight: in combination Figure 1 Figure 3 The embodiment is explained, and the double-claw long pipe mechanical clamping jaw mechanism of the embodiment is characterized in that the clamping jaw mounting plate 7 is provided with a mounting hole, and the bolt assembly 12 is inserted into the mounting hole, and the clamping jaw mounting plate 7 and the rubber claw 9 are fixedly connected through the bolt assembly 12.

[0051] The clamping jaw mounting plate 7 is a rectangular plate structure, and the clamping jaw mounting plate 7 and the rubber claw 9 are conveniently installed through the bolt assembly 12. With the above structure, the installation and disassembly of the rubber claw 9 are facilitated.

[0052] Specific implementation nine: in combination Figure 5 —​​​Figure 6 The rubber claw 9 is in T-shaped structure as a whole, and a V-shaped clamping opening is formed in the longitudinal plane of the rubber claw 9.

[0053] The motor 3 is fixedly connected with the motor mounting seat 13, and the motor mounting seat 13 is fixed at the bottom of the operation table 2.

[0054] The rubber claw 9 is made of rubber material, and when the rubber claw 9 clamps the pipe, the friction force can be increased, and marks can be avoided on the surface of the pipe, and the rubber claw 9 is suitable for some stainless steel long pipes with high surface precision requirements.

[0055] Specific implementation ten: Figure 1 — Figure 6 The rubber claw 9 is in T-shaped structure as a whole, and a V-shaped clamping opening is formed in the longitudinal plane of the rubber claw 9. When the motor 3 is started, the motor 3 drives the gear 4 to rotate through the output shaft, the driving chain 5 is connected to the gear 4, and the driving chain 5 is connected to the sprocket 84 of the claw driving mechanism 8 on both sides at the same time, so that when the gear 4 drives the driving chain 5 to rotate, the driving chain 5 drives the sprocket 84 on both sides to rotate at the same time, the center of the sprocket 84 is fixedly connected with the threaded sleeve 81, the threaded sleeve 81 is rotatably provided with the advancing screw 82 on both sides, the sprocket 84 drives the threaded sleeve 81 to rotate, so that the threaded sleeve 81 pushes the advancing screw 82 matched with the threaded sleeve 81, and the advancing screw 82 on both sides is screwed into the threaded sleeve 81, the advancing screw 82 is fixedly connected with the claw mounting plate 7, and the advancing screw 82 drives the claw mounting plate 7 to move synchronously, so that when the two claw mounting plates 7 on the same side are close to each other, the rubber claws 9 on the two claw mounting plates 7 are close to each other, and the claw driving mechanism 8 on the other side is synchronously operated with the claw driving mechanism 8 on the same side, and the long pipe is clamped by the rubber claws 9 on both sides below the operation table.

[0056] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the above disclosed technical content without departing from the technical solution range of the present application, and any simple modification, equivalent replacement and improvement of the above embodiment within the technical solution range of the present application and the technical essence of the present application, within the spirit and principles of the present application, are all within the protection scope of the present application.

Claims

1. A double-claw long pipe mechanical clamping mechanism, comprising a connecting arm (1) and an operating table (2), the top of the operating table (2) is fixedly connected with the connecting arm (1), characterized in that, The bottom of the operating platform (2) is respectively provided with a motor (3) and a pipe mechanical gripper assembly, the motor (3) is installed on the longitudinal center line of the operating platform (2), and the pipe mechanical gripper assembly is arranged on both sides of the operating platform (2); The output shaft of the motor (3) is connected with a gear (4), the gear (4) is rotationally connected with a driving chain (5), the driving chain (5) is connected with the pipe mechanical gripper assembly at both ends below the operating platform (2), and the motor (3) drives the driving chain (5) through the gear (4).

2. A dual jaw long pipe mechanical gripper mechanism according to claim 1, wherein, The pipe mechanical gripper assembly comprises longitudinal supports (6), gripper mounting plates (7), gripper driving mechanisms (8) and rubber claws (9); The longitudinal supports (6) and the gripper driving mechanisms (8) are respectively connected with the bottom of the operating platform (2) perpendicularly, the gripper mounting plates (7) are installed between two longitudinal supports (6) on the same side, the longitudinal supports (6) and the gripper mounting plates (7) are arranged in parallel, the gripper mounting plates (7) are fixedly connected with the rubber claws (9), the gripper driving mechanisms (8) are installed between two gripper mounting plates (7) on the same side, and the rubber claws (9) slide horizontally between the two longitudinal supports (6) through the gripper driving mechanisms (8) on the same side.

3. A dual jaw long pipe mechanical gripper mechanism as claimed in claim 2, wherein, The gripper driving mechanism (8) comprises a threaded sleeve (81), a propelling screw (82), a sleeve bearing seat (83) and a sprocket (84); The middle position of the threaded sleeve (81) is fixedly connected with the sprocket (84) as an integral structure, the threaded sleeve (81) is rotationally connected with the sleeve bearing seat (83), two propelling screws (82) are screwed into the threaded sleeve (81) through a threaded structure, and the threaded sleeve (81) drives the two propelling screws (82) on the two sides to move synchronously in rotation.

4. A dual jaw long pipe mechanical gripper mechanism as claimed in claim 3, wherein, The end of the propelling screw (82) is connected with the gripper mounting plate (7) perpendicularly, and when the propelling screw (82) is pushed, the rubber claw (9) on the gripper mounting plate (7) is moved through the propelling screw (82).

5. A dual jaw long pipe mechanical gripper mechanism as claimed in claim 3, wherein, The wheel hub of the sprocket (84) is fixedly connected with the middle position of the threaded sleeve (81), and the sprocket (84) is sleeved with the driving chain (5), and when the driving chain (5) is driven, the sprocket (84) on the two sides of the threaded sleeve (81) is driven to rotate.

6. A dual jaw long pipe mechanical gripper mechanism as claimed in claim 2, wherein, Two positioning slide rods (10) are vertically connected between the two longitudinal supports (6) on the same side, and the positioning slide rods (10) are at least two and are on the same horizontal plane.

7. A dual jaw long pipe mechanical gripper mechanism as claimed in claim 4, wherein, A linear bearing (11) is installed on the gripper mounting plate (7), the positioning slide rod (10) is slidably connected in the linear bearing (11), and the linear bearing (11) moves the gripper mounting plate (7) when sliding on the positioning slide rod (10).

8. A dual jaw long pipe mechanical gripper mechanism as claimed in claim 7, wherein, A mounting hole is formed in the gripper mounting plate (7), a bolt assembly (12) penetrates the mounting hole, and the bolt assembly (12) fixedly connects the gripper mounting plate (7) and the rubber claw (9).

9. A dual jaw long pipe mechanical gripper mechanism as claimed in claim 8, wherein, The rubber claw (9) is in a T-shaped structure as a whole, and a V-shaped clamping opening is formed in the longitudinal plane of the rubber claw (9).

10. The dual jaw long pipe mechanical gripper mechanism of claim 1, wherein, The motor (3) is fixedly connected with a motor mounting base (13), and the motor mounting base (13) is fixed at the bottom of the operation table (2).

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