CN112122481B

CN112122481B - Pipe fitting clamping device

Info

Publication number: CN112122481B
Application number: CN202010597514.5A
Authority: CN
Inventors: 王昭平; 王自豪; 吴一文; 蒋玉明
Original assignee: Zhejiang Fanzuo Technology Co ltd
Current assignee: Zhejiang Fanzuo Technology Co ltd
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2022-06-10
Anticipated expiration: 2040-06-28
Also published as: CN112122481A

Abstract

The invention provides a pipe fitting clamping device, and belongs to the technical field of pipe fitting machining. It has solved the centre gripping demand of current pipe fitting automated processing. The pipe fitting clamping device comprises a clamping jaw and a clamping body, wherein the clamping jaw is formed by combining a fixed part and a hinged part, a first arc-shaped opening of the fixed part and a second arc-shaped opening of the hinged part can be spliced to form a circular groove, the clamping body can concentrically rotate relative to the circular groove, the clamping body is formed by splicing two independent parts, a first splicing line is formed at the splicing position of the first arc-shaped opening and the second arc-shaped opening, a second splicing line is formed at the splicing position of the two parts, the first splicing line and the second splicing line can be superposed, bayonets are arranged at the splicing position of the parts, and two bayonets of the two parts are spliced to form a clamping hole for clamping a pipe fitting. The invention has the advantages that the clamping jaw type pipe fitting clamping device is convenient to feed and discharge and can rotate the pipe fitting.

Description

Pipe fitting clamping device

Technical Field

The invention belongs to the technical field of pipe fitting machining, relates to a pipe bender, and particularly relates to a pipe fitting clamping device.

Background

The existing handrail support of the mower is formed by processing a pipe fitting, the structure of the handrail is that two ends of the handrail are bent, flattened and punched, and the flattening angles of the two ends are different, so that the pipe fitting can be rotated to facilitate the punching and bending at different angles in the design of automatic equipment.

Disclosure of Invention

The invention aims to meet the requirement of automatic processing of the existing pipe fittings, and provides a clamping jaw type pipe fitting clamping device which is convenient to feed and discharge and can rotate the pipe fitting.

The purpose of the invention can be realized by the following technical scheme:

a pipe fitting clamping device comprises a clamping jaw and a circular clamping body arranged on the clamping jaw, wherein the clamping jaw is formed by combining a fixed part and a hinged part, the fixed part and the hinged part are respectively provided with a first arc-shaped opening and a second arc-shaped opening, the second arc-shaped opening can rotate along with the hinged part to be close to or far away from the first arc-shaped opening, the first arc-shaped opening and the second arc-shaped opening can be spliced to form a circular groove for accommodating the clamping body, the clamping body can concentrically rotate relative to the circular groove under the drive of a reversing drive mechanism, the clamping body is formed by splicing two independent subsections, the subsections are arc-shaped, a first splicing line is formed at the splicing part of the first arc-shaped opening and the second arc-shaped opening, a second splicing line is formed at the splicing part of the two subsections, a clamping station is arranged on the clamping jaw, when the clamping body rotates to the clamping station, the first splicing line is superposed with the second splicing line, a bayonet is arranged at the splicing part, the two bayonets of the two parts are spliced to form a clamping hole for clamping the pipe fitting.

The hinged part is far away from or close to the fixing part through rotating to form opening or closing of the clamping jaw, the clamping body can rotate relative to the clamping jaw when the clamping jaw is closed, so that rotation transposition of the pipe fitting can be realized, two parts which form the clamping body in a combined mode can be correspondingly separated or spliced along with the opening or closing of the clamping jaw, loading and unloading of the pipe fitting are facilitated, and loading and unloading of the pipe fitting are not affected by the length of the pipe fitting.

In a foretell pipe fitting clamping device, all be equipped with a plurality of gyro wheels in first arc mouth and the second arc mouth, a plurality of gyro wheels in same arc mouth set up along corresponding arc mouth radian direction interval in proper order, are equipped with the guide way that is used for holding the gyro wheel in the above-mentioned subsection, and the guide way cooperation is circular-arcly, and the guide way runs through the subsection along subsection radian direction. The clamping body is ensured to be concentric with the circular groove by guiding the rotation of the clamping body through the idler wheel, and the clamping body is enabled to rotate smoothly.

In the pipe clamping device, the periphery of the roller is provided with a circle of concave rolling grooves, and the inner walls of two sides of the guide groove are respectively provided with a guide strip which protrudes outwards and can be embedded in the rolling grooves in a matching manner.

In the pipe fitting clamping device, a circle of external teeth are arranged on the periphery of the clamping body, the reversing driving mechanism is a motor, and the reversing driving mechanism is in transmission connection with the external teeth through a gear assembly.

In a foretell pipe fitting clamping device, the gear assembly includes gear A, awl tooth and gear B, and gear A and above-mentioned external tooth external toothing, gear A and awl tooth are concentric to be linked firmly, and gear B and awl tooth meshing, gear B and the motor shaft of motor are concentric to be linked firmly.

In the pipe clamping device, the hinged part can rotate relative to the fixed part under the driving of a power cylinder, the hinged part is provided with a first hinged point and a second hinged point, the hinged part is hinged with the fixed part through the first hinged point, the hinged part is in transmission connection with the power cylinder through a hinged rod, and two ends of the hinged rod are respectively hinged on the second hinged point and a piston rod of the power cylinder.

In the pipe clamping device, the hinge portion is further provided with a locking structure for preventing the corresponding portion from coming off the hinge portion.

In a foretell pipe fitting clamping device, the card structure includes that one rotates the latch spare that sets up on articulated portion and acts on the elastic component on the latch spare, the latch spare is located the outside that corresponds the subsection, be equipped with on the one side of latch spare towards the subsection and can block the latch that goes up the external tooth clearance on the corresponding subsection, the latch spare has the trend of motion of leaning on to the subsection under the effect of elastic component, be equipped with an extrapolation portion on the above-mentioned fixed part, articulated portion and fixed part are close to the in-process of amalgamation, extrapolation portion can lean on the latch spare and make the latch spare rotate to keeping away from the subsection direction.

In the above pipe clamping device, the elastic member is a spring plate, one end of the spring plate abuts against the hinge portion, and the other end of the spring plate abuts against the latch member.

Compared with the prior art, the invention has the advantages that: the pipe fitting is disassembled through opening and closing of the clamping claws, the pipe fitting can not be influenced by the length of the pipe fitting, the pipe fitting can be conveniently loaded and unloaded, the pipe fitting can be rotated after being clamped, and reversing is carried out, so that the punching and bending work of different angles of the pipe fitting can be realized by matching with devices such as punching, bending and the like of a pipe bending machine, and the automation degree of equipment is greatly improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the present invention with a section removed;

FIG. 3 is a schematic view of the present invention with the hinge portion removed;

fig. 4 is a schematic diagram of a subsection.

In the figure, 1, a fixed part; 2. a clamping hole; 3. an outward pushing part; 4. a hinge portion; 5. a power cylinder; 6. a first hinge point; 7. a second hinge point; 8. a hinged lever; 9. a circular groove; 10. a roller; 11. dividing; 12. a guide groove; 13. a guide strip; 14. nesting; 15. a first splice line; 16. a second splice line; 17. an outer tooth; 18. a gear A; 19. conical teeth; 20. a gear B; 21. a latch member; 22. a spring plate; 23. and (4) clamping teeth.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 4, the pipe clamping device provided by the present invention is disposed on a frame, the frame is further provided with a bent pipe stamping device, the pipe fitting clamping device comprises a clamping jaw and a circular clamping body arranged on the clamping jaw, wherein a clamping hole 2 penetrating through the clamping body is concentrically arranged on the clamping body, a through hole which is concentric with the clamping hole 2 and penetrates through the clamping jaw is formed in the clamping jaw, the clamping jaw is formed by combining a fixing part 1 and a hinged part 4, the hinged part 4 can rotate relative to the fixing part 1 under the driving of a power cylinder 5 to form clamping jaw type opening or closing, the power cylinder 5 can be an oil cylinder or an air cylinder, a first hinged point 6 and a second hinged point 7 are arranged on the hinged part 4, the hinged part 4 is hinged with the fixing part 1 through the first hinged point 6, the hinged part 4 is in transmission connection with the power cylinder 5 through a hinged rod 8, and two ends of the hinged rod 8 are respectively hinged on the second hinged point 7 and a piston rod of the power cylinder 5;

the fixing part 1 and the hinge part 4 are respectively provided with a first arc-shaped opening and a second arc-shaped opening which are semicircular, the second arc-shaped opening can be close to or far away from the first arc-shaped opening along with the rotation of the hinge part 4, the first arc-shaped opening and the second arc-shaped opening can be spliced to form a circular groove 9 for accommodating a clamping body, the bottom surfaces of the first arc-shaped opening and the second arc-shaped opening are respectively and rotatably provided with a plurality of rollers 10, and the rollers 10 are sequentially and uniformly arranged at intervals along the circumferential direction of the circular groove 9;

the clamping body is formed by splicing two independent subsections 11, each subsection 11 is semicircular, a guide groove 12 used for containing a roller 10 is formed in each subsection 11, each guide groove 12 penetrates through each subsection 11 along the radian direction of each subsection 11, each roller 10 is concentrically provided with a circle of inwards-concave rolling grooves along the periphery, outer convex guide strips 13 are arranged on the inner walls of two sides of each guide groove 12 in a matched mode, each guide strip 13 is embedded in each rolling groove to guide the clamping body to rotate, and the clamping bodies can concentrically rotate in the circular grooves 9;

the parts 11 are provided with bayonets at the splicing positions, the two bayonets of the two parts 11 are spliced to form the clamping hole 2, the clamping hole 2 is used for clamping a pipe fitting, a detachable nesting 14 is arranged in the clamping hole 2, the nesting 14 is also formed by combining the two parts, the inner hole of the nesting 14 is matched with the outer diameter of the pipe fitting to be processed, and the pipe fitting processing with different outer diameters can be adapted by replacing the nesting 14;

a first splicing line 15 is formed at the splicing position of the first arc-shaped opening and the second arc-shaped opening, a second splicing line 16 is formed at the splicing position of the two parts 11, a clamping station is arranged on the clamping jaw, when the clamping body rotates to the clamping station, the first splicing line 15 is overlapped with the second splicing line 16, the hinged part 4 can rotate relative to the fixing part and is opened, and the loading or unloading of the pipe fitting can be operated after the hinged part is opened;

the clamping body can rotate concentrically relative to circular groove 9 under the drive of a reversing drive mechanism, the periphery of the clamping body is provided with external teeth 17, the reversing drive mechanism is connected with the external teeth 17 through a gear assembly, the reversing drive mechanism is a motor, the gear assembly comprises a gear A18, a bevel gear 19 and a gear B20, a gear A18 is externally meshed with the external teeth 17, a gear A18 and the bevel gear 19 are fixedly connected concentrically, a gear B20 is meshed with the bevel gear 19, a gear B20 is fixedly connected with a motor shaft of the motor concentrically, a motor drive gear B20 rotates, a gear B20 drives the bevel gear 19 and the gear A18 to rotate synchronously, and a gear A18 drives the clamping body to rotate.

The hinged part 4 is also provided with a clamping structure for preventing the corresponding part 11 from falling off the hinged part 4 when the hinged part 4 is opened, the clamping structure comprises a clamping tooth member 21 rotationally arranged on the hinged part 4 and an elastic member acting on the clamping tooth member 21, the elastic member is a spring piece 22, one end of the spring piece 22 abuts against the hinged part 4, the other end of the spring piece 22 abuts against the clamping tooth member 21, the clamping tooth member 21 is positioned at the outer side of the corresponding part 11, one side of the clamping tooth member 21 facing the part 11 is provided with a clamping tooth 23 capable of being clamped into a gap of an external tooth 17 on the part 11, the clamping tooth 23 is close to the lower end of the splicing part of the hinged part 4, the clamping tooth member 21 always has a movement trend close to the part 11 under the action of the spring piece 22, and the clamping tooth 23 is clamped into the gap of the external tooth 17 under the action of the spring piece 22 under the action of no other external force, so that the part 11 can be prevented from falling off the hinged part 4;

be equipped with an extrapolation portion 3 on the fixed part 1, offer on the articulated portion 4 and supply extrapolation portion 3 male breach, latch 21 one end articulates on articulated portion 4, the other end is located breach department, articulated portion 4 is close to the in-process of amalgamation with fixed part 1, extrapolation portion 3 can insert the breach and support and lean on last latch 21 and push latch 21 and make it rotate to keeping away from branch 11 direction, when first concatenation line 15 and the 16 coincidence of second concatenation line, latch 23 is deviate from in the 17 clearances of external tooth completely, the clamping body can rotate this moment.

It is to be understood that in the claims, specification of the invention, all "including … …" are to be interpreted in an open-ended sense, i.e. in a sense equivalent to "including at least … …", and not in a closed sense, i.e. in a sense not to be interpreted as "including … … only".

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. A pipe fitting clamping device is characterized by comprising a clamping jaw and a circular clamping body arranged on the clamping jaw, wherein the clamping jaw is formed by combining a fixing part (1) and a hinged part (4), the fixing part (1) and the hinged part (4) are respectively provided with a first arc-shaped opening and a second arc-shaped opening, the second arc-shaped opening can be close to or far away from the first arc-shaped opening along with the rotation of the hinged part (4), the first arc-shaped opening and the second arc-shaped opening can be spliced to form a circular groove (9) used for accommodating the clamping body, the clamping body can concentrically rotate relative to the circular groove (9) under the driving of a reversing driving mechanism, the clamping body is formed by splicing two independent subsections (11), the subsections (11) are arc-shaped, a first splicing line (15) is formed at the splicing positions of the first arc-shaped opening and the second arc-shaped opening, and a second splicing line (16) is formed at the splicing positions of the two subsections (11), the clamping jaw is provided with a clamping station, when a clamping body rotates to the clamping station, a first splicing line (15) is superposed with a second splicing line (16), a bayonet is arranged at the splicing position on a subsection (11), two bayonet splicing parts of the two subsections (11) form a clamping hole (2) for clamping a pipe fitting, a plurality of rollers (10) are arranged in a first arc-shaped opening and a second arc-shaped opening, the rollers (10) in the same arc-shaped opening are sequentially arranged at intervals along the radian direction of the corresponding arc-shaped opening, a guide groove (12) for accommodating the rollers (10) is arranged on the subsection (11), the guide groove (12) is matched to be circular arc-shaped, the guide groove (12) penetrates through the subsection (11) along the radian direction of the subsection (11), the periphery of the clamping body is provided with a circle of external teeth (17), the reversing driving mechanism is a motor, and is in transmission connection with the external teeth (17) through a gear assembly, the gear assembly comprises a gear A (18), bevel teeth (19) and a gear B (20), the gear A (18) is externally meshed with the external teeth (17), the gear A (18) and the bevel teeth (19) are concentrically and fixedly connected, the gear B (20) is meshed with the bevel teeth (19), and the gear B (20) is concentrically and fixedly connected with a motor shaft of the motor.

2. A pipe clamping device as claimed in claim 1, wherein the roller (10) is provided with a circle of concave rolling grooves on the periphery, and the inner walls of the two sides of the guide groove (12) are respectively provided with a guide strip (13) which is convex and can be embedded in the rolling grooves.

3. A pipe clamping device according to claim 1 or 2, wherein the hinge portion (4) is driven by a power cylinder (5) to rotate relative to the fixed portion (1), the hinge portion (4) is provided with a first hinge point (6) and a second hinge point (7), the hinge portion (4) is hinged to the fixed portion (1) through the first hinge point (6), the hinge portion (4) is connected with the power cylinder (5) through a hinge rod (8), and two ends of the hinge rod (8) are respectively hinged to the second hinge point (7) and a piston rod of the power cylinder (5).

4. A pipe clamping device as claimed in claim 1 or 2, wherein the hinge portion (4) is further provided with a locking structure for preventing the corresponding portion (11) from falling out of the hinge portion (4).

5. A pipe fitting holding device as claimed in claim 4, wherein the locking structure comprises a latch member (21) rotatably provided on the hinge portion (4) and an elastic member acting on the latch member (21), the latch member (21) is located outside the corresponding section (11), a latch (23) capable of being engaged in a gap between the outer teeth (17) of the corresponding section (11) is provided on a side of the latch member (21) facing the section (11), the latch member (21) has a tendency to move toward the section (11) by the elastic member, an outward pushing portion (3) is provided on the fixing portion (1), and the outward pushing portion (3) can abut against the upper latch member (21) and rotate the latch member (21) in a direction away from the section (11) in a process that the hinge portion (4) and the fixing portion (1) are close to each other.

6. A tube holding device as claimed in claim 5, wherein said elastic member is a leaf spring (22), one end of the leaf spring (22) abutting against said hinge portion (4) and the other end abutting against said ratchet member (21).