Rotary chuck clamping jaw fully adaptive to specifications of pipes

Abstract

The utility model relates to the technical field of chuck clamping devices, in particular to a rotary chuck clamping jaw fully adaptive to pipe specifications, which comprises a base and a chuck body arranged on the base, and a pipe insertion opening is formed in the base; the sliding part is arranged on the base in a sliding mode, and the sliding part slides towards the pipe inserting opening; the clamping head is arranged on the sliding piece, the side, facing the pipe inserting opening, of the clamping head is a clamping side, and the clamping side of the clamping head is in a plane shape; the restraining pieces are arranged on the clamping head, and the restraining pieces are distributed in the circumferential direction of the pipe inserting opening. The clamping jaw has the effect of improving the applicability of the clamping jaw.

Description

Technical Field

[0001] The present application relates to the technical field of chuck clamping devices, and in particular to a rotating chuck clamping jaw that is fully adaptable to pipe specifications. Background Art

[0002] With the advancement of science and technology, more and more pipes are used in industrial production. In the processing operations such as cutting, bending or welding of pipes, in order to improve the processing quality of pipes, the pipes to be processed are clamped by clamping devices, and the pipes are cut after they are stably clamped.

[0003] In the current technology, the clamping device includes a rotating chuck and a plurality of jaws, which are slidably connected to the rotating chuck. The jaws usually slide on the rotating chuck through pneumatic transmission to achieve the clamping operation of the pipe. The existing jaws are composed of a plurality of chucks, and the clamping side of the chuck is arc-shaped. When clamping the pipe, the pipe can be tightly clamped in the clamping device, but each set of jaws can only clamp the pipe of a certain fixed diameter. If the diameter of the pipe to be processed changes, the jaws need to be replaced according to the changed diameter. The process is cumbersome, the applicability of the jaws is low, and it is not conducive to improving production efficiency. Utility Model Content

[0004] In order to improve the applicability of the clamp, the present application provides a rotary chuck clamp that is fully adaptable to pipe specifications.

[0005] The present application provides a rotating chuck jaw that is fully compatible with pipe specifications, and adopts the following technical solution:

[0006] A rotating chuck jaw that is fully compatible with pipe specifications, used for a chuck body, comprising:

[0007] A base is arranged on the chuck body, and the base is provided with a pipe insertion port;

[0008] A sliding member, slidably disposed on the base, and the sliding member slides toward the insertion port;

[0009] A chuck is arranged on the sliding member, the side of the chuck facing the insertion port is a clamping side, and the clamping side of the chuck is a plane;

[0010] A restraining member is arranged on the clamp, and the restraining member is distributed along the circumference of the insertion port.

[0011] By adopting the above technical scheme, the chuck is distributed in an open state at the tube insertion port, the tube is inserted into the tube insertion port, and the chuck is distributed on the outside of the tube. The chuck slides toward the tube on the base through pneumatic transmission. The clamping side of the chuck is in contact with the side wall of the tube, so that the chuck forms a clamping point on the tube, and the position of the tube is initially constrained and clamped, which is suitable for a variety of tube clamping operations; when the chuck clamps the tube, the constraint part is in contact with the tube, and the constraint part is distributed circumferentially on the side wall of the tube, and the moving direction of the tube is secondarily constrained, so that the tube is not easy to separate from the chuck during processing, so that the tube is clamped under the clamping action of the chuck and the constraint action of the constraint part, which is suitable for a variety of tube clamping operations, and the applicability of the clamping jaws is improved.

[0012] Optionally, the base is provided with a pressure-applying member, the pressure-applying member has an installation opening, a first locking member is inserted into the installation opening, the first locking member abuts against the pressure-applying member, the first locking member is threadedly connected to the base, and the pressure-applying member fits against the sliding member.

[0013] By adopting the above technical solution, the first locking member is inserted into the installation opening, so that the first locking member cooperates with the base thread, and the pressure-applying member moves toward the sliding member, so that the pressure-applying member and the sliding member fit together, and the sliding member slides on the base under the action of the pressure-applying member. The fit tightness between the pressure-applying member and the sliding member is adjusted by twisting the first locking member, and the sliding friction force of the sliding member on the pressure-applying member and the base is controlled, thereby facilitating the regulation of the sliding smoothness of the sliding member on the base.

[0014] Optionally, the insertion direction of the first locking member is perpendicular to the side where the pressure-applying member and the sliding member are in contact with each other.

[0015] By adopting the above technical solution, during the twisting process of the first locking member, the force applied by the pressure-applying member to the sliding member is a single-direction pressure, and the direction of the pressure is parallel to the insertion direction of the first locking member, which facilitates the adjustment of the tightness of the fit between the pressure-applying member and the sliding member.

[0016] Optionally, the pressure-applying member is provided with a liquid injection hole, the sliding member is provided with a first liquid storage tank, and the liquid injection hole is communicated with the first liquid storage tank.

[0017] By adopting the above technical solution, lubricating liquid is injected into the injection hole, and the lubricating liquid enters the first liquid storage tank through the injection hole. When the first liquid storage tank is full, the lubricating liquid penetrates into the gap between the sliding member and the pressure-applying member. When the sliding member slides, the lubricating liquid adheres between the sliding member and the pressure-applying member, thereby improving the sliding smoothness of the sliding member.

[0018] Optionally, an adjustment hole is opened on one side of the chuck, a second locking piece is inserted into the adjustment hole, the second locking piece abuts against the chuck, and the second locking piece is threadedly connected to the sliding piece.

[0019] By adopting the above technical solution, during the production process of the chuck, there is a possibility of deviation and tilt on the clamping side of the chuck. When clamping the pipe, the clamping force of the chuck on the pipe is unbalanced, which can easily cause damage to the surface of the pipe and unstable clamping. The second locking piece is inserted into the adjustment hole and then threadedly connected to the sliding piece. The second locking piece is used as a fixed point to move the chuck within the opening range of the adjustment hole. The second locking piece is turned to fix the chuck, and the clamping side of the chuck is adjusted to a suitable position to improve the clamping stability of the chuck.

[0020] Optionally, the number of the chucks is four, and the four chucks are symmetrically arranged in pairs on the horizontal axis or the vertical axis respectively.

[0021] By adopting the above technical solution, the stability of pipe clamping is increased, so that the pipe can be stably and reliably fixed on the clamping jaws during processing. When the pipe is cut, the possibility of horizontal or vertical swinging of the pipe is reduced, thereby improving the processing quality of the pipe.

[0022] Optionally, adjacent restraining members are staggered, and the clamp is provided with a clamping groove matching the adjacent restraining members.

[0023] By adopting the above technical solution, the clamping side area gradually decreases during the sliding of the chuck toward the pipe insertion port, and the adjacent restraining parts are staggered. In the process of the gradual reduction of the clamping side area, the adjacent restraining parts will not block until the restraining parts are inserted into the clamping groove, thereby expanding the range of the clamping side area of ​​the clamp, reducing the possibility of being unable to clamp small pipes, and improving the applicability of the clamp.

[0024] Optionally, the clamping side of the chuck is provided with clamping teeth.

[0025] By adopting the above technical solution, the clamping teeth clamp the pipe, which increases the friction area of ​​the pipe, reduces the possibility of the pipe slipping at the pipe insertion opening during processing, and improves the clamping stability of the clamping jaws.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. The chuck is distributed in an open state at the insertion port. The pipe is inserted into the insertion port, and the chuck is distributed on the outside of the pipe. The chuck slides toward the pipe on the base through pneumatic transmission. The clamping side of the chuck is in contact with the side wall of the pipe, so that the chuck forms a clamping point on the pipe, and the position of the pipe is initially constrained and clamped, which is suitable for a variety of pipe clamping operations; when the chuck clamps the pipe, the constraint fits the pipe, and the constraint is distributed circumferentially on the side wall of the pipe, which constrains the moving direction of the pipe for a second time, so that the pipe is not easy to separate from the chuck during processing, so that the pipe is clamped under the clamping effect of the chuck and the constraint of the constraint, which is suitable for a variety of pipe clamping operations, and improves the applicability of the clamping jaws;

[0028] 2. The first locking member is inserted into the installation opening, so that the first locking member is matched with the base thread, and the pressure-applying member moves toward the sliding member, so that the pressure-applying member and the sliding member fit together, and the sliding member slides on the base under the action of the pressure-applying member. The fitting tightness of the pressure-applying member and the sliding member is adjusted by twisting the first locking member, and the sliding friction force of the sliding member on the pressure-applying member and the base is controlled, thereby facilitating the adjustment of the sliding smoothness of the sliding member on the base;

[0029] 3. During the production process of the chuck, there is a possibility that the clamping side of the chuck may deviate and tilt. When clamping the pipe, the clamping force of the chuck on the pipe is unbalanced, which may easily cause damage to the surface of the pipe and unstable clamping. The second locking piece is inserted into the adjustment hole and then threadedly connected to the sliding piece. The second locking piece is used as a fixed point to move the chuck within the opening range of the adjustment hole. The second locking piece is turned to fix the chuck, and the clamping side of the chuck is adjusted to a suitable position to improve the clamping stability of the chuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure in the embodiment of the present application.

[0031] Figure 2 It is a structural schematic diagram of the position relationship between the sliding member and the base in the embodiment of the present application.

[0032] Figure 3 It is a diagram of the position of the connecting groove in the embodiment of the present application.

[0033] Figure 4 This is an adjustment hole position diagram in the embodiment of the present application.

[0034] Description of reference numerals:

[0035] 1. Base; 11. Insertion port; 2. Sliding member; 3. Clamp; 4. Constraint member; 5. Limit member; 6. Pressure member; 61. First locking member; 62. Liquid injection hole; 63. First liquid storage tank; 64. Liquid injection plug; 65. Connecting groove; 66. Second liquid storage tank; 7. Adjustment hole; 71. Second locking member; 8. Clamping groove; 9. Auxiliary clamping member; 91. Auxiliary clamping groove. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-4 This application is described in further detail.

[0037] The embodiment of the present application discloses a rotary chuck jaw that is fully adaptable to pipe specifications.

[0038] Reference Figure 1A rotary chuck jaw that is fully compatible with pipe specifications is used to be set on the chuck body and slide with the chuck body through a pneumatic transmission method. It includes a base 1, a sliding member 2, a chuck 3 and a restraining member 4. The base 1 is fixedly connected to the chuck body. A pipe insertion port 11 is penetrated and opened on the side of the base 1 away from the chuck body. A sliding groove is opened on the side of the base 1 where the pipe insertion port 11 is opened. The sliding member 2 is located in the sliding groove and is distributed circumferentially along the pipe insertion port 11. The sliding member 2 is slidably connected to the base 1, and the sliding member 2 slides toward the pipe insertion port 11. The chuck 3 is connected to the side of the sliding member 2 away from the base 1 The side of the chuck 3 facing the tube insertion port 11 is the clamping side, and the clamping side of the chuck 3 is planar, the length direction of the clamping side of the chuck 3 is consistent with the penetration direction of the tube insertion port 11, and a limit member 5 is provided at one end of the chuck 3 which is away from the tube insertion port 11 in the sliding direction. The limit member 5 is connected to the base 1 by screws, and the restraint member 4 is detachably connected to the clamping side of the chuck 3. The restraint member 4 is distributed circumferentially along the tube insertion port 11, and the length direction of the restraint member 4 is perpendicular to the insertion direction of the tube insertion port 11 and the sliding direction of the sliding member 2. In the present embodiment, the restraint member 4 is mounted on the clamping side of the chuck 3 by screws.

[0039] When clamping the pipe, the chuck 3 is distributed in an open state along the pipe insertion port 11, the pipe is inserted into the pipe insertion port 11, and the sliding member 2 is moved toward the pipe insertion port 11 by pneumatic transmission. The sliding of the sliding member 2 drives the chuck 3 to slide toward the end away from the pipe insertion port 11, and the chuck 3 gathers toward the pipe. The flat clamping side of the chuck 3 forms a line contact with the side wall of the pipe, and fits the side wall of the pipe to perform preliminary constraint and clamping on the pipe, which can be suitable for clamping pipes of different sizes. At the same time, the constraint member 4 fits and clamps the side of the pipe, and the constraint member 4 performs secondary constraint on the moving direction of the pipe, so that the pipe is not easy to swing or even escape from the clamp during processing, so that the pipe is clamped under the action of the chuck 3 and the constraint member 4, so that the clamp can clamp pipes of different sizes and specifications, thereby improving the applicability of the clamp.

[0040] Reference Figure 2 A pressure-applying member 6 is provided on one side of the base 1 close to the chuck 3, and the pressure-applying member 6 is symmetrically arranged on both sides of the sliding direction of the chuck 3. A mounting opening is penetrated through one side of the pressure-applying member 6 close to the base 1, and a first locking member 61 is inserted into the mounting opening. The first locking member 61 abuts against the side of the pressure-applying member 6 away from the base 1, and one end of the first locking member 61 away from the pressure-applying member 6 is threadedly connected to the base 1. The pressure-applying member 6 is inserted into the sliding groove and abuts against the groove wall of the sliding groove, and one side of the insertion end of the pressure-applying member 6 fits against the sliding member 2.

[0041] Insert the pressure-applying member 6 into the sliding groove, the pressure-applying member 6 fits with the sliding member 2, and the first locking member 61 is inserted into the installation opening and cooperates with the thread of the base 1. By twisting the first locking member 61 and the threaded connection depth of the base 1, the fit tightness of the pressure-applying member 6 and the sliding member 2 is adjusted, and the sliding friction force of the sliding member 2 on the pressure-applying member 6 and the base 1 is controlled, thereby facilitating the regulation of the sliding smoothness of the sliding member 2 on the base 1.

[0042] In order to further facilitate the regulation of the tightness of the fit between the pressure-applying member 6 and the sliding member 2, the insertion direction of the first locking member 61 is perpendicular to the side where the pressure-applying member 6 and the sliding member 2 fit together. When the first locking member 61 is tightened, the force applied by the pressure-applying member 6 on the sliding member 2 is a pressure in a single direction, which facilitates the regulation of the sliding friction force of the pressure-applying member 6 on the sliding member 2.

[0043] Reference Figure 2 and Figure 3 A liquid injection hole 62 is provided on the side of the pressure-applying member 6 away from the base 1, and a first liquid storage tank 63 is provided on the side of the sliding member 2 close to the pressure-applying member 6. The length direction of the first liquid storage tank 63 is consistent with the length direction of the sliding tank. The liquid injection hole 62 is connected to the first liquid storage tank 63, and the liquid injection hole 62 is matched with a liquid injection plug 64 for controlling the opening and closing of the liquid injection hole 62.

[0044] The injection plug 64 is separated from the injection hole 62, the injection hole 62 is opened, and the lubricating liquid is injected into the first liquid storage tank 63 through the injection hole 62. The injection plug 64 is inserted into the injection hole 62, and the injection hole 62 is closed. When the sliding member 2 slides toward the insertion port 11, the lubricating liquid in the first liquid storage tank 63 contacts the pressure-applying member 6, so that the lubricating liquid adheres to the gap between the pressure-applying member 6 and the sliding member 2, thereby improving the sliding smoothness of the sliding member 2.

[0045] To further improve the sliding smoothness of the sliding member 2 , a connecting groove 65 is provided on the groove wall of the first liquid storage groove 63 away from the groove opening, and a second liquid storage groove 66 is provided on the side of the sliding member 2 close to the base 1 , and the second liquid storage groove 66 is connected to the second liquid storage groove 66 through the connecting groove 65 .

[0046] Reference Figure 1 and Figure 4 An adjustment hole 7 is formed on one side of the chuck 3 close to the sliding member 2. The adjustment hole 7 is in the shape of a runway ellipse. A second locking member 71 is inserted into the adjustment hole 7. The second locking member 71 abuts against the side of the chuck 3 away from the sliding member 2. The end of the second locking member 71 away from the chuck 3 is threadedly connected to the sliding member 2.

[0047] The chuck 3 is placed on the side of the sliding member 2 away from the base 1, the second locking member 71 is inserted into the adjusting hole 7, and then is threadedly connected to the sliding member 2, and the second locking member 71 is used as a fixed point to enable the chuck 3 to move within the opening range of the adjusting hole 7. When the sliding direction of the chuck 3 is perpendicular to the clamping side plane of the chuck 3, the second locking member 71 is screwed to fix the chuck 3, so as to balance the clamping force of the chuck 3 on the pipe and improve the clamping stability of the chuck 3.

[0048] When clamping the pipe, in order to make the pipe evenly stressed and reduce the possibility of the pipe clamping position being offset due to uneven stress, the clamps 3 are equidistantly arranged around the pipe insertion port 11 on the base 1, so that the clamps 3 are equidistantly clamped on the pipe wall of the pipe.

[0049] There are four chucks 3, which are symmetrically arranged in pairs on the horizontal axis or the vertical axis in a cross shape. When processing the pipe, the possibility of the pipe swinging in the horizontal or vertical direction is reduced, thereby improving the processing quality of the pipe.

[0050] When the diameter of the pipe is smaller than the length of the restraint 4, when the clamping head moves the rod toward the pipe insertion port 11, the restraints 4 may collide with each other, and the size of the clamping port of the chuck 3 is limited. In order to further improve the applicability of the clamp, the restraints 4 on adjacent chucks 3 are staggered and symmetrically arranged. The restraints 4 on the chucks 3 are symmetrically arranged, and the chucks 3 are provided with clamping grooves 8 that match the adjacent restraints 4. When the diameter of the pipe is small, the restraint 4 can be inserted into the clamping grooves 8 of the adjacent chucks 3, thereby reducing the possibility of collision of the restraints 4.

[0051] An auxiliary clamping piece 9 is arranged on the clamping side of the chuck 3, and the auxiliary clamping piece 9 is located on the side of the constraint part 4 away from the base 1. The auxiliary clamping pieces 9 on adjacent chucks 3 are staggered, and the length direction of the auxiliary clamping piece 9 is parallel to the length direction of the constraint part 4. The chuck 3 is provided with an auxiliary clamping groove 91 matching the adjacent auxiliary clamping piece 9 for insertion, and the constraint part 4 and the auxiliary clamping piece 9 are spaced apart when the clamping groove 8 or the auxiliary clamping groove 91 is opened.

[0052] The possibility of reducing the clamping stability of the constraint members 4 due to the misaligned arrangement of adjacent constraint members 4 is reduced. The constraint members 4 and the auxiliary clamping members 9 clamp the pipe, thereby improving the clamping stability of the clamping jaws.

[0053] The clamping side of the chuck 3 is provided with clamping teeth, one side of the clamping teeth and the clamping side of the constraint 4 are located on the same plane, when clamping the pipe, the teeth and the constraint 4 can both be clamped against the pipe wall of the pipe, further improving the clamping stability of the clamp on the pipe.

[0054] During the pipe processing, the constraint part 4 and the auxiliary clamp 9 are in direct contact with the pipe, and the clamping sides of the constraint part 4 and the auxiliary clamp 9 are prone to wear, which leads to reduced clamping stability of the constraint part 4 and the auxiliary clamp 9. Both the constraint part 4 and the auxiliary clamp 9 are detachably connected to the chuck 3. In this embodiment, the constraint part 4 and the auxiliary clamp 9 are fixed to the chuck 3 by screws, and the constraint part 4 and the auxiliary clamp 9 can be replaced to further improve the clamping stability of the jaws.

[0055] The implementation principle of the rotary chuck jaw that is fully adaptable to pipe specifications in the embodiment of the present application is as follows: the pipe is inserted into the pipe insertion port 11, the chuck 3 slides on the base 1 and gathers toward the pipe, the flat clamping side of the chuck 3 forms a line contact with the side wall of the pipe, and fits the side wall of the pipe to perform preliminary constraint and clamping on the pipe, which can be suitable for clamping pipes of different sizes and specifications. At the same time, the constraint 4 fits and clamps the side of the pipe, and the constraint 4 performs secondary constraint on the moving direction of the pipe, so that the pipe is not easy to swing or even escape from the clamp during processing, so that the pipe is clamped under the action of the chuck 3 and the constraint 4, so that the clamp can clamp pipes of different sizes and specifications, thereby improving the applicability of the clamp.

[0056] The above are all preferred embodiments of the present application. The embodiments are only explanations of the present application and do not limit the protection scope of the present application in turn. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A rotating chuck jaw that is fully compatible with pipe specifications, used for a chuck body, characterized in that: include: A base (1) is arranged on the chuck body, and the base (1) is provided with a tube insertion port (11); A sliding member (2) is slidably disposed on the base (1), and the sliding member (2) slides toward the insertion port (11); A chuck (3) is arranged on the sliding member (2), the side of the chuck (3) facing the tube insertion port (11) being a clamping side, and the clamping side of the chuck (3) is in a planar shape; A restraining member (4) is arranged on the clamp (3), and the restraining member (4) is distributed along the circumference of the insertion port (11); The adjacent restraining members (4) are arranged in a staggered manner, and the clamping head (3) is provided with a clamping groove (8) for matching the adjacent restraining members (4).

2. A rotary chuck jaw that fully adapts to pipe specifications according to claim 1, characterized in that: The base (1) is provided with a pressure-applying member (6), the pressure-applying member (6) is provided with an installation opening, a first locking member (61) is inserted into the installation opening, the first locking member (61) abuts against the pressure-applying member (6), the first locking member (61) is threadedly connected to the base (1), and the pressure-applying member (6) is in contact with the sliding member (2).

3. The rotary chuck jaw that fully adapts to pipe specifications according to claim 2 is characterized in that: The insertion direction of the first locking member (61) is perpendicular to the side where the pressure-applying member (6) and the sliding member (2) are in contact with each other.

4. The rotary chuck jaw that fully adapts to pipe specifications according to claim 2 is characterized in that: The pressure-applying member (6) is provided with a liquid injection hole (62), the sliding member (2) is provided with a first liquid storage tank (63), and the liquid injection hole (62) is communicated with the first liquid storage tank (63).

5. The rotary chuck jaw that fully adapts to pipe specifications according to claim 1 is characterized in that: An adjustment hole (7) is provided on one side of the chuck (3), a second locking member (71) is inserted into the adjustment hole (7), the second locking member (71) abuts against the chuck (3), and the second locking member (71) is threadedly connected to the sliding member (2).

6. The rotary chuck jaw that fully adapts to pipe specifications according to claim 1 is characterized in that: The number of the clamps (3) is four, and the four clamps (3) are symmetrically arranged in pairs on a horizontal axis or a vertical axis.

7. The rotary chuck jaw that fully adapts to pipe specifications according to claim 1 is characterized in that: The clamping side of the clamping head (3) is provided with clamping teeth.

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