CN216398062U - Double-roller clamping claw and integrated front clamp - Google Patents
Double-roller clamping claw and integrated front clamp Download PDFInfo
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- CN216398062U CN216398062U CN202123035726.3U CN202123035726U CN216398062U CN 216398062 U CN216398062 U CN 216398062U CN 202123035726 U CN202123035726 U CN 202123035726U CN 216398062 U CN216398062 U CN 216398062U
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Abstract
The utility model discloses a double-roller clamping jaw and an integrated front clamp, wherein the double-roller clamping jaw comprises a fixed rear seat and a movable front seat adjustably mounted at one end of the fixed rear seat, and an adjustable double-roller structure is arranged at one end, far away from the fixed rear seat, of the movable front seat; and the fixed rear seat is provided with a fastener suitable for installing the fixed rear seat on the chuck. The adjustable pipe clamping device adopts the fixed rear seat and the movable front seat which are connected in an adjustable manner to replace the traditional integral type jaw seat, so that the distance between the jaw and the center of the chuck can be still adjusted after the jaw moves in place, the pipe is ensured to be positioned at the rotating center of the chuck, and the clamping precision is further ensured; meanwhile, the double-roller structure is adjustable, so that two rollers are prevented from appearing on different clamping surfaces, and the clamping precision is further improved.
Description
Technical Field
The utility model relates to the technical field of chucks, in particular to a double-roller chuck jaw and an integrated front clamp.
Background
The cutting of the pipe is an indispensable process in the manufacturing process of the pipe fittings, the processing of pipe materials and section bars made of various metal materials is widely realized by adopting a professional laser pipe cutting machine or a plate pipe integrated machine. The pipe cutting machine cuts the long-strip-shaped pipe into pipe fittings with required length in a segmented mode according to actual requirements; the pipe needs to be clamped and fixed before being cut so as to avoid cutting deviation caused by the movement of the position of the pipe when a cutting execution part cuts the pipe; the chuck clamping force stability, reliability, workpiece machining precision and the machinability of various pipes and profiles are of particular interest in the market.
Machining errors can occur in the clamping part of the front chuck under general conditions, so that the clamping jaw and the pipe are clamped under the condition that the pipe is not at the rotation center of the chuck, and the clamping precision cannot be guaranteed. In addition, in order to increase the clamping points, the clamping parts of some chucks adopt a double-roller structure, but in practical application, the upper and lower rollers of the double-roller clamping jaw are not on the same clamping surface, so that the clamping precision is low, and the debugging is difficult.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a double-roller clamping claw and an integrated front clamp aiming at the defects in the prior art, which can ensure that a pipe is positioned at the rotation center of a clamping chuck and two rollers are arranged on the same clamping surface, and improve the clamping precision.
The technical scheme for realizing the aim of the utility model is as follows:
a double-roller clamping claw comprises a fixed rear seat and a movable front seat adjustably mounted at one end of the fixed rear seat, wherein an adjustable double-roller structure is arranged at one end, far away from the fixed rear seat, of the movable front seat; and the fixed rear seat is provided with a fastener suitable for installing the fixed rear seat on the chuck.
Furthermore, a front seat end surface coarse adjustment mechanism and a front seat end surface fine adjustment mechanism are arranged between the fixed rear seat and the movable front seat; the one end of fixed back seat is equipped with the first U type installation department of opening orientation activity front stall, the top of first U type installation department is equipped with first through-hole, the bottom of first U type installation department is equipped with first screw hole, the one end that the activity front stall is close to fixed back seat is equipped with the second through-hole, be equipped with in the first through-hole and be suitable for passing the second through-hole and twist the first downthehole first screw of screw, the internal diameter of first through-hole is greater than the maximum external diameter of first screw, the internal diameter of second through-hole is greater than the internal diameter of first screw hole.
Furthermore, the front seat end surface coarse adjustment mechanism comprises a first adjusting screw which is arranged at the other end of the fixed rear seat and is abutted with the end part, close to the fixed rear seat, of the movable front seat.
Furthermore, the front seat end surface fine adjustment mechanism comprises an eccentric shaft nail which is arranged on the first U-shaped installation part and connected with the movable front seat.
Furthermore, a set screw which is abutted against the eccentric shaft nail is arranged on the side edge of the movable front seat.
Further, the one end that fixed back seat was kept away from to the activity front stall is equipped with activity front stall integrated into one piece and alignment about being distributed second U type installation department and third U type installation department, two roller structures are including the lower roller components of adjustable installation at the last roller components of second U type installation department and fixed mounting at third U type installation department.
Furthermore, waist-shaped holes are formed in two ends of the second U-shaped mounting portion, the pin shaft of the upper roller assembly is inserted into the waist-shaped holes, and second adjusting screws which are abutted to the pin shaft of the upper roller assembly are respectively arranged at two ends of the waist-shaped holes along the vertical direction of the upper roller assembly.
Furthermore, the contact surface between the pin shaft of the upper roller assembly and the second adjusting screw is a plane.
Further, the upper end of the double-roller structure is higher than or lower than the upper surface of the fixed rear seat, and the lower end of the double-roller structure is lower than the lower surface of the fixed rear seat.
An integrated front clamp comprises a base and a rotating body which is arranged on the base and rotates around the rotating body, wherein a plurality of sliding blocks are uniformly distributed at the front end of the rotating body along the circumferential direction, and the double-roller clamping jaws are fixedly arranged on the sliding blocks; and a driving device suitable for driving the sliding block to move along the radial direction of the chuck is arranged in the rotating body.
By adopting the technical scheme, the utility model has the following beneficial effects:
(1) the adjustable pipe clamping device adopts the fixed rear seat and the movable front seat which are connected in an adjustable manner to replace the traditional integral type jaw seat, so that the distance between the jaw and the center of the chuck can be still adjusted after the jaw moves in place, the pipe is ensured to be positioned at the rotating center of the chuck, and the clamping precision is further ensured; meanwhile, the double-roller structure is adjustable, so that two rollers are prevented from appearing on different clamping surfaces, and the clamping precision is further improved.
(2) According to the utility model, the movable front seat is conveniently installed in a matching manner by arranging the first U-shaped installation part, the fixed front seat and the movable rear seat are connected by the first screw, and the inner diameter of the second through hole through which the first screw penetrates is larger than that of the first threaded hole into which the first screw is screwed, so that the distance between the movable front seat and the fixed rear seat is adjustable, and the position of the movable front seat is accurately controlled by arranging the front seat end surface coarse adjustment mechanism and the front seat end surface fine adjustment mechanism, thereby ensuring the clamping accuracy.
(3) The front seat end surface coarse adjustment mechanism adopts the first adjusting screw with the end part abutting against the movable front seat, and the movable front seat is pushed to move along the length direction by rotating the first adjusting screw, so that the adjustment function is realized.
(4) The front seat end surface fine adjustment mechanism adopts the eccentric shaft nail, and the front seat is driven to move along the length direction or the width direction by rotating the eccentric shaft nail, so that the fine adjustment function is further realized.
(5) The side edge of the movable front seat is also provided with the set screw, and the eccentric shaft nail is locked by screwing the set screw, so that the eccentric shaft nail is prevented from falling off, and the clamping precision is further ensured.
(6) The upper roller assembly of the double-roller mechanism is adjustably arranged on the second U-shaped mounting part, and the upper roller and the lower roller can be ensured to be positioned on the same clamping surface by adjusting the position of the upper roller assembly, so that the clamping precision is low.
(7) The second U-shaped mounting part is provided with the waist-shaped hole, the pin shaft of the upper roller assembly is inserted into the waist-shaped hole, and the position of the pin shaft is adjusted by arranging the second adjusting screw, so that the position of the upper roller assembly is adjustable and convenient to adjust.
(8) The contact surface of the pin shaft of the upper roller assembly and the second adjusting screw is a plane, so that the contact area is increased, the adjustment is facilitated, and the mounting firmness of the upper roller assembly is improved.
(9) The upper end of the double-roller structure is higher or lower than the upper surface of the fixed rear seat, and the clamping jaws with two structures are provided, so that different clamping requirements are met; the lower extreme is less than the lower surface of fixed back seat for the jack catch is installed on the chuck back, and the gyro wheel that is located the downside is in the chuck, thereby reduces the tails of centre gripping, practices thrift tubular product.
(10) The integrated front clamp is provided with the double-roller clamping jaw with the adjustable clamping end face, when the clamping jaw moves to the position under the action of the driving device, the position of the clamping end face of the clamping jaw can be still adjusted, so that the tube is prevented from being clamped eccentrically, the double-roller structure can be adjusted, the upper clamping point and the lower clamping point are located on the same clamping plane, and the clamping precision is guaranteed.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the present disclosure taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a perspective view of embodiment 1;
FIG. 2 is a top view of embodiment 1;
FIG. 3 is a bottom view of embodiment 1;
FIG. 4 is a rear view of embodiment 1;
FIG. 5 is a left side view of embodiment 1;
FIG. 6 is a perspective view of a movable front seat according to embodiment 1;
FIG. 7 is a perspective view of embodiment 2;
fig. 8 is a perspective view of embodiment 3.
The reference numbers in the drawings are:
the device comprises a fixed rear seat 1, a first U-shaped mounting part 1-1, a first through hole 1-1-1, a first threaded hole 1-1-2, a movable front seat 2, a second through hole 2-1, a second U-shaped mounting part 2-2, a kidney-shaped hole 2-2-1, a third U-shaped mounting part 2-3, a double-roller structure 3, an upper roller assembly 3-1, a lower roller assembly 3-2, a fastening piece 4, a second screw 4-1, a front seat end surface coarse adjustment mechanism 5, a first adjusting screw 5-1, a front seat end surface fine adjustment mechanism 6, an eccentric shaft screw 6-1, a set screw 6-2, a first screw 7 and a second adjusting screw 8;
Detailed Description
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
(example 1)
The double-roller jaw as shown in fig. 1 to 6 comprises a fixed rear seat 1, a movable front seat 2, a double-roller structure 3 and a fastener 4. The movable front seat 2 is adjustably installed at the right end of the fixed rear seat 1, the double-roller structure 3 is adjustably installed at the right end of the movable front seat 2, the fastening piece 4 comprises two second screws 4-1 which penetrate through the fixed rear seat from top to bottom, and the fixed rear seat 1 is installed on the chuck through the second screws 4-1. In the embodiment, the fixed rear seat 1 and the movable front seat 2 which are connected in an adjustable manner are adopted to replace a traditional integral type jaw seat, so that after a jaw moves in place, the distance between the jaw and the center of a chuck can be adjusted, the pipe is ensured to be positioned at the rotating center of the chuck, and the clamping precision is further ensured; meanwhile, the double-roller structure is adjustable, so that two rollers are prevented from appearing on different clamping surfaces, and the clamping precision is further improved.
Specifically, a front seat end surface coarse adjustment mechanism 5 and a front seat end surface fine adjustment mechanism 6 are arranged between the fixed rear seat 1 and the movable front seat 2. The right end of the fixed rear seat 1 is provided with a first U-shaped mounting part 1-1 with an opening facing the right, the top of the first U-shaped mounting part 1-1 is provided with a first through hole 1-1-1, the bottom of the first U-shaped mounting part is provided with a first threaded hole 1-1-2, the left end of the movable front seat 2 is provided with a second through hole 2-1, the first through hole 2-1 is internally provided with a first screw 7 which penetrates through the second through hole 2-1 and is screwed into the first threaded hole 1-1-2, wherein the inner diameter of the first through hole 2-1 is larger than the maximum outer diameter of the first screw 7, and the inner diameter of the second through hole 2-1 is larger than the inner diameter of the first threaded hole 1-1-2, so that the distance between the movable front seat 2 and the fixed rear seat 1 is adjustable. The front seat end surface coarse adjustment mechanism 5 comprises two first adjusting screws 5-1 which are arranged at the left end of the fixed rear seat 1 and are abutted with the end part of the left end of the movable front seat 1, and the movable front seat 2 is pushed to move rightwards by rotating the first adjusting screws 5-1, so that the adjustment function is realized. The front seat end surface fine adjustment mechanism 6 comprises an eccentric shaft nail 6-1 which is arranged on the first U-shaped installation part 1-1 and connected with the movable front seat 2, and the front seat is driven to move along the left-right direction or the front-back direction by rotating the eccentric shaft nail 6-1, so that the fine adjustment function is further realized. In order to prevent the eccentric shaft nail 6-1 from falling off, a set screw 6-2 which is abutted against the eccentric shaft nail 6-1 is arranged on the rear side of the movable front seat 2, so that the eccentric shaft nail 6-1 is locked, and the clamping precision is further ensured.
One end of the movable front seat 2 far away from the fixed rear seat 1 is provided with a second U-shaped mounting part 2-2 and a third U-shaped mounting part 2-3 which are integrally formed with the movable front seat 2 and are distributed in an up-down alignment manner, the double-roller structure 3 comprises an upper roller assembly 3-1 and a lower roller assembly 3-2, and the lower roller assembly 3-2 is fixedly mounted on the third U-shaped mounting part 2-3. Waist-shaped holes 2-2-1 are formed in two ends of the second U-shaped mounting portion 2-2, a pin shaft of the upper roller assembly 3-1 is inserted into the waist-shaped holes 2-2-1, and second adjusting screws 8 which are abutted to the pin shaft of the upper roller assembly 3-1 are respectively arranged at two ends of the waist-shaped holes 2-2-1 in the vertical direction of the upper roller assembly 3-1. The position of the upper roller assembly 3-1 is adjusted by adjusting the second adjusting screw 8, so that the upper and lower roller assemblies are ensured to be positioned on the same clamping surface, and the clamping precision is improved. In addition, the contact surface between the pin shaft of the upper roller assembly 3-1 and the second adjusting screw 8 is a plane, so that the contact area between the pin shaft and the second adjusting screw is increased, the adjustment is facilitated, and the installation firmness of the upper roller assembly 3-1 is improved. The upper and lower rollers of the conventional double-roller claw are arranged outside the chuck, so that the length of the cut tailing of the pipe is long, in the embodiment, the upper roller assembly 3-1 is higher than the upper surface of the fixed rear seat 1, and the lower roller assembly 3-2 is lower than the lower surface of the fixed rear seat 1, so that after the claw is installed on the chuck, the lower roller assembly 3-2 is positioned in the chuck, the clamped tailing is reduced, and the pipe is saved.
(example 2)
As shown in fig. 7, the structure of this embodiment is similar to that of embodiment 1, except that the upper roller assembly 3-1 is lower than the upper surface of the fixed rear seat 1, so that after the jaws are mounted on the chuck, the whole double-roller structure 3 is located in the chuck, thereby further reducing the clamped tailings and saving the pipe.
(example 3)
As shown in fig. 8, the integrated front card includes a base 10 and a rotating body 20 disposed on the base 10 and rotating around itself, four sliding blocks 30 are uniformly distributed at the front end of the rotating body 20 along the circumferential direction, wherein two symmetrically disposed sliding blocks 30 are fixedly mounted with a double-roller jaw having the same structure as that of embodiment 1, and the other two sliding blocks 30 are fixedly mounted with a double-roller jaw having the same structure as that of embodiment 2; the interior of the rotating body 20 is provided with a driving means for driving the sliding block 30 to move along the radial direction of the chuck, thereby realizing the clamping action of the double-roller jaw. When the double-roller clamping jaw moves to the position under the action of the driving device, the clamping end surface position of the clamping jaw can be still adjusted, so that the eccentricity of the clamping of the pipe is avoided, the double-roller structure can be adjusted, the upper clamping point and the lower clamping point are located on the same clamping plane, and the clamping precision is guaranteed.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a two roller jack catches which characterized in that: the adjustable double-roller mechanism comprises a fixed rear seat (1) and a movable front seat (2) adjustably mounted at one end of the fixed rear seat (1), wherein an adjustable double-roller structure (3) is arranged at one end, far away from the fixed rear seat (1), of the movable front seat (2); and a fastener (4) suitable for installing the fixed rear seat (1) on the chuck is arranged on the fixed rear seat (1).
2. A dual roller jaw according to claim 1 wherein: a front seat end surface coarse adjusting mechanism (5) and a front seat end surface fine adjusting mechanism (6) are arranged between the fixed rear seat (1) and the movable front seat (2); one end of the fixed rear seat (1) is provided with a first U-shaped mounting part (1-1) with an opening facing the movable front seat (2), the top of the first U-shaped mounting part (1-1) is provided with a first through hole (1-1-1), the bottom of the first U-shaped mounting part (1-1) is provided with a first threaded hole (1-1-2), one end of the movable front seat (2) close to the fixed rear seat (1) is provided with a second through hole (2-1), a first screw (7) which is suitable for passing through the second through hole (2-1) and screwing into the first threaded hole (1-1-2) is arranged in the first through hole (1-1-1), the inner diameter of the first through hole (1-1-1) is larger than the maximum outer diameter of the first screw (7), the inner diameter of the second through hole (2-1) is larger than that of the first threaded hole (1-1-2).
3. A dual roller jaw according to claim 2 wherein: the front seat end surface coarse adjustment mechanism (5) comprises a first adjusting screw (5-1) which is arranged at the other end of the fixed rear seat (1) and is abutted against the end part, close to the fixed rear seat (1), of the movable front seat (2).
4. A dual roller jaw according to claim 2 wherein: the front seat end surface fine adjustment mechanism (6) comprises an eccentric shaft nail (6-1) which is arranged on the first U-shaped installation part (1-1) and connected with the movable front seat (2).
5. A dual roller jaw according to claim 4 wherein: and a set screw (6-2) which is abutted against the eccentric shaft nail (6-1) is arranged on the side edge of the movable front seat (2).
6. A dual roller jaw according to claim 1 wherein: one end of the movable front seat (2) far away from the fixed rear seat (1) is provided with a second U-shaped installation part (2-2) and a third U-shaped installation part (2-3) which are integrally formed with the movable front seat (2) and are aligned and distributed from top to bottom, and the double-roller structure (3) comprises an upper roller assembly (3-1) adjustably installed on the second U-shaped installation part (2-2) and a lower roller assembly (3-2) fixedly installed on the third U-shaped installation part (2-3).
7. A dual roller jaw according to claim 6 wherein: waist-shaped holes (2-2-1) are formed in two ends of the second U-shaped mounting portion (2-2), pin shafts of the upper roller assemblies (3-1) are inserted into the waist-shaped holes (2-2-1), and second adjusting screws (8) which are abutted to the pin shafts of the upper roller assemblies (3-1) are respectively arranged at two ends of the waist-shaped holes (2-2-1) in the vertical direction of the upper roller assemblies (3-1).
8. A dual roller jaw according to claim 7 wherein: the surface of the pin shaft of the upper roller assembly (3-1) in contact with the second adjusting screw (8) is a plane.
9. A dual roller jaw according to claim 1 wherein: the upper end of the double-roller structure (3) is higher than or lower than the upper surface of the fixed rear seat (1), and the lower end of the double-roller structure (3) is lower than the lower surface of the fixed rear seat (1).
10. An integral front card, characterized in that: the double-roller jaw type clamping device comprises a base (10) and a rotating body (20) which is arranged on the base (10) and rotates around the rotating body, wherein a plurality of sliding blocks (30) are uniformly distributed at the front end of the rotating body (20) along the circumferential direction, and the double-roller jaw type clamping device as claimed in any one of claims 1 to 9 is fixedly arranged on each sliding block (30); the interior of the rotating body (20) is provided with a driving device which is suitable for driving the sliding block (30) to move along the radial direction of the chuck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123035726.3U CN216398062U (en) | 2021-12-06 | 2021-12-06 | Double-roller clamping claw and integrated front clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123035726.3U CN216398062U (en) | 2021-12-06 | 2021-12-06 | Double-roller clamping claw and integrated front clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216398062U true CN216398062U (en) | 2022-04-29 |
Family
ID=81305814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123035726.3U Active CN216398062U (en) | 2021-12-06 | 2021-12-06 | Double-roller clamping claw and integrated front clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216398062U (en) |
-
2021
- 2021-12-06 CN CN202123035726.3U patent/CN216398062U/en active Active
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