CN216802615U

CN216802615U - Pipe clamp

Info

Publication number: CN216802615U
Application number: CN202123023231.9U
Authority: CN
Inventors: 王帅; 温华栋; 潘艺友; 吴岗; 王英贺; 曹佳宁; 田龙; 王学文
Original assignee: SHENYANG MACHINE TOOL (GROUP) CO Ltd
Current assignee: General Technology Group Shenyang Machine Tool Co Ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-06-24
Anticipated expiration: 2031-12-03

Abstract

A pipe clamp, comprising: the middle of the top of the clamp body is provided with a groove; the clamping jaws are arranged in the grooves and used for clamping the pipe; the pair of swing rods are oppositely arranged, are rotatably connected in the clamp body and are positioned at one end of the pair of clamping jaws which are deviated from each other; the inclined block is arranged between the bottoms of the pair of swing rods; the pair of elastic components are arranged on one side of the bottoms of the pair of swing rods, which are deviated from each other; the driving piece drives the inclined block to lift so as to drive the pair of swing rods to rotate inwards or outwards and enable the pair of clamping jaws to approach or depart from each other. The pipe clamp provided by the utility model has the advantages that the pair of clamping jaws can clamp pipes with different outer diameters by matching the swing rod and the inclined block, the corresponding increase of a spindle box and a chuck of a machine tool caused by the increase of the specification of the pipes is avoided, and the processing difficulty and cost caused by the increase of the spindle box and the chuck are reduced.

Description

Pipe clamp

Technical Field

The utility model belongs to the technical field of pipe machining, and particularly relates to a pipe clamp.

Background

The machining of the pipe is usually realized through a machine tool, the clamping of a machine tool chuck is carried out in a conventional machining mode, but the machine tool chuck and a spindle box are increased along with the increase of the specification of the pipe due to the fact that the specification of the pipe is very large and long, and manufacturing difficulty and cost are increased. Therefore, a pipe clamp is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pipe clamp to solve the problem that a machine tool chuck and a spindle box are enlarged due to pipe specification replacement.

In order to achieve the above object, the present invention provides a pipe clamp including:

the middle of the top of the clamp body is provided with a groove;

the pair of clamping jaws are arranged in the groove and used for clamping a pipe;

the pair of swing rods is oppositely arranged, is rotatably connected in the clamp body and is positioned at one end of the pair of clamping jaws which deviates from each other;

the inclined block is arranged between the bottoms of the pair of swing rods;

the pair of elastic components are arranged on one side of the bottoms of the pair of swing rods, which is deviated from the bottom;

the driving piece drives the inclined block to lift so as to drive the swing rods to rotate inwards or outwards, and the clamping jaws are close to or far away from each other.

Preferably, the clamp further comprises a pair of guide pin shafts, the top of the clamp body is provided with shaft holes penetrating through the side walls of the groove along the horizontal direction, the pair of guide pin shafts are respectively inserted into the shaft holes on the two sides of the groove, and two ends of each guide pin shaft are respectively connected to one clamping jaw and one swing rod;

the pair of swing rods can drive the pair of guide pin shafts to move oppositely or oppositely along the horizontal direction in a rotating mode, and therefore the clamping jaws are driven to be close to or far away from.

Preferably, a pair of the surface that the jack catch deviates from mutually is equipped with the constant head tank, the constant head tank is along the perpendicular to the axial setting of guide pin axle, and a pair of the surface that the guide pin axle is relative is equipped with along the arch of radial setting, protruding joint in the constant head tank.

Preferably, the outer wall of the guide pin shaft is provided with a guide key groove arranged along the axial direction, and the guide key groove is connected with the clamp body in a sliding mode through a guide key.

Preferably, the guide pin shaft is provided with a swing rod groove which is arranged along the radial direction, and the top end of the swing rod is inserted into the swing rod groove;

the pair of side walls opposite to the swing rod groove comprise a vertical part and inclined parts connected to two ends of the vertical part, the inclined parts incline towards the clamping jaws, and the top end of the swing rod is in contact with the vertical part.

Preferably, a pair of the jaws are provided with arcuate portions on opposite surfaces thereof for gripping the outer periphery of the pipe.

Preferably, the clamp further comprises a pair of fixing pins and a pair of roller assemblies, and the middle part of each swing rod is connected to the clamp body through one fixing pin;

the roller assembly comprises a roller shaft and rollers sleeved on the roller shaft, a roller groove is formed in the bottom end of the swing rod, a pair of roller grooves of the swing rod are arranged oppositely, each roller shaft is connected to the side wall of one roller groove, and the pair of rollers are respectively in contact with the two sides of the inclined block.

Preferably, the elastic assembly comprises spring sleeves, springs and a gland, guide holes are formed in two sides of the fixture body, one end of each spring sleeve is inserted into one guide hole, the other end of each spring sleeve is in contact with the side face, deviating from the roller groove, of the bottom end of the swing rod, the spring is inserted into one end of each spring sleeve, and the gland is connected to the side wall of the fixture body to seal the guide holes and the spring sleeves.

Preferably, the top of the inclined block comprises two inclined planes which are oppositely arranged and inclined upwards, and the bottom end of each swing rod is respectively contacted with one inclined plane;

the driving piece comprises an oil cylinder and an oil cylinder seat, the top of the oil cylinder seat is provided with a guide sleeve,

the oil cylinder seat is connected to the bottom of the fixture body, the guide sleeve extends into the fixture body, and the bottom of the inclined block is connected in the guide sleeve in a sliding manner;

the oil cylinder is connected to the oil cylinder base, the extending end of the oil cylinder is connected to the bottom of the inclined block, the extending end of the oil cylinder extends out or retracts to drive the inclined block to lift, so that the bottom ends of the pair of swing rods slide along the inclined plane to be far away or close, and the top end of the swing rod drives the pair of clamping jaws to be close to or far away.

Preferably, the fixture further comprises a cover plate, wherein at least one of the top end surface and the four side surfaces of the fixture body is provided with an access opening, and the cover plate covers the access opening.

The utility model relates to a pipe clamp, which has the beneficial effects that: the swing rod and the inclined block are matched to enable the pair of clamping jaws to clamp pipes with different outer diameters, so that the situation that the size of the pipe is increased to cause the corresponding increase of a spindle box and a chuck of a machine tool is avoided, and the processing difficulty and cost of the spindle box and the chuck caused by the increase are reduced.

Additional features and advantages of the utility model will be set forth in the detailed description which follows.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.

FIG. 1 shows a schematic structural view of a pipe clamp of an exemplary embodiment of the present invention;

FIG. 2 shows an exploded view of a pipe clamp of an exemplary embodiment of the present invention;

FIG. 3 is a schematic view showing a pair of jaws in close proximity during use of a pipe clamp according to an exemplary embodiment of the present invention;

figure 4 shows a schematic view of a pair of jaws in use of a pipe clamp according to an exemplary embodiment of the present invention.

Description of reference numerals:

1. the device comprises a first cover plate, a second cover plate, a clamp body, a groove 21, a shaft hole 22, a guide hole 23, a fixing pin hole 24, a claw 3, a positioning groove 31, a guide pin shaft 4, a protrusion 41, a swing rod groove 42, a guide key groove 43, a guide key 5, a guide key, a swing rod 6, a roller groove 61, a second cover plate 7, a gland 8, a spring sleeve 9, a spring 91, a roller shaft 10, a roller 11, an inclined block 12, an oil cylinder 13, an oil cylinder seat 14, a guide sleeve 141, a third cover plate 15 and a fixing pin 16.

Detailed Description

Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

In order to solve the problems in the prior art, as shown in fig. 1 to 4, the present invention provides a pipe clamp, including:

the middle of the top of the clamp body 2 is provided with a groove 21;

the pair of clamping jaws 3 are arranged in the groove 21 and used for clamping a pipe;

the pair of swing rods 6 are oppositely arranged, are rotatably connected in the clamp body 2 and are positioned at one ends, deviating from the pair of clamping jaws 3, of the pair of swing rods 6;

the inclined block 12 is arranged between the bottoms of the pair of swing rods 6;

the pair of elastic components are arranged on one side of the bottoms of the pair of swing rods 6, which is deviated from the bottom;

and the driving piece drives the inclined block 12 to ascend and descend so as to drive the pair of swing rods 6 to rotate inwards or outwards to enable the pair of claws 3 to approach or separate from each other.

The pipe clamp provided by the utility model has the advantages that the pair of clamping jaws 3 can clamp pipes with different outer diameters by matching the swing rod 6 and the inclined block 12, the corresponding increase of a spindle box and a chuck of a machine tool caused by the increase of the specification of the pipes is avoided, and the processing difficulty and cost caused by the increase of the spindle box and the chuck are reduced.

As the preferred scheme, the fixture body 2 is a rectangular body or a nearly rectangular body, the interior of the fixture body is hollow, and the fixture body is convenient for placing various parts, such as the swing rod 6 and the like. The fixture body 2 comprises a top end face, a bottom end face, a pair of oppositely arranged first side faces and a pair of oppositely arranged second side faces, and the area of each second side face is larger than that of each first side face. The groove 21 is recessed downward from the top end surface of the clamp body 2 and penetrates through the pair of first side surfaces.

The pipe clamp further comprises a pair of guide pin shafts 4, the top of the clamp body 2 is provided with a shaft hole 22 penetrating through the side wall of the groove 21 along the horizontal direction, the pair of guide pin shafts 4 are respectively inserted into the shaft holes 22 on the two sides of the groove 21, and the two ends of each guide pin shaft 4 are respectively connected to one clamping jaw 3 and one swing rod 6;

the pair of swing rods 6 can drive the pair of guide pin shafts 4 to move oppositely or back to back along the horizontal direction, so that the clamping jaws 3 are driven to approach or leave.

A shaft hole 22 for installing guide pin axle 4 sets up along the horizontal direction, and runs through a pair of second side, and guide pin axle 4's outer wall is equipped with along the direction keyway 43 of axial setting, and direction keyway 43 passes through 5 sliding connection of guide key in the anchor clamps body 2, and shaft hole 22 inner wall is equipped with the spout promptly, and 5 joints of guide key are in the spout, and guide pin axle 4's guide keyway 43 can slide for guide key 5.

The opposite surfaces of the pair of clamping jaws 3 are provided with arc-shaped parts for clamping the periphery of a pipe. The pair of clamping jaws 3 are oppositely arranged, and the center line of the pipe clamped by the pair of clamping jaws 3 is arranged along the direction vertical to the guide pin shaft 4.

The surfaces of the pair of claws 3 which are deviated from each other are provided with positioning grooves 31, the positioning grooves 31 are arranged along the axial direction which is vertical to the guide pin shafts 4, the surfaces of the pair of guide pin shafts 4 which are opposite to each other are provided with bulges 41 which are arranged along the radial direction, and the bulges 41 are clamped in the positioning grooves 31.

The guide pin shaft 4 is provided with a swing rod groove 42 which is arranged along the radial direction, and the top end of the swing rod 42 is inserted in the swing rod groove 42;

the opposite side walls of the pair of swing link grooves 42 include a vertical portion and inclined portions connected to both ends of the vertical portion, the inclined portions being inclined toward the jaw 3, and the top end of the swing link 6 being in contact with the vertical portion. The inclined portion makes the swing link groove 42 vertical on one side of the cross section parallel to the axial direction of the guide pin shaft 4, and the upper and lower ends of the other side are inclined and expanded so as to avoid the space required when the swing link 6 rotates.

As a preferred scheme, the swing rod groove 42 penetrates through the guide pin shaft 4, and the top end of the swing rod 6 is connected in the swing rod groove 42 and can drive the guide pin shaft 4 to reciprocate along the horizontal direction.

The pipe clamp further comprises a pair of fixing pins 16 and a pair of roller assemblies, and the middle part of each swing rod 6 is connected to the clamp body 2 through one fixing pin 16;

the roller assembly comprises roller shafts 10 and rollers 11 sleeved on the roller shafts 10, roller grooves 61 are formed in the bottom ends of the swing rods 6, the roller grooves 61 of the pair of swing rods 6 are arranged oppositely, each roller shaft 10 is connected to the side wall of one roller groove 61, and the pair of rollers 11 are respectively contacted with the two sides of the inclined block 12.

The swing rod 6 comprises a first connecting arm and a second connecting arm which are connected with each other, a first included angle is formed between the first connecting arm and the second connecting arm, the first connecting arm is inserted into the swing rod groove 42, the swing rod groove 42 is shaped to avoid a space required by the swing rod 6 during rotation, the second connecting arm is connected to the clamp body through the fixing pin 16, and the roller groove 61 is formed in the bottom of the second connecting arm. And a second included angle is formed between the first connecting arm and the axial direction of the guide pin shaft 4, and when the swing rod 6 rotates, the second included angle changes along with the rotation direction of the swing rod 6.

The roller shaft 10 is arranged along the horizontal direction perpendicular to the axial direction of the guide pin shaft 4, two ends of the roller shaft are respectively connected to the side walls of the roller groove 61, and the roller 11 is rotatably connected to the roller shaft 10 so as to reduce the friction force between the roller shaft and the inclined block.

The second side surface of the fixture body 2 is provided with a pair of fixing pin holes 24, and the fixing pin 16 is inserted into the fixing pin holes 24 to fix the swing rod 6, so that the swing rod 6 rotates by taking the fixing pin 16 as a rotation center when sliding along the inclined block 12.

The elastic assembly comprises spring sleeves 9, springs and a gland 8, guide holes 23 are formed in two sides of the fixture body 2, one end of each spring sleeve 9 is inserted into one guide hole 23, the other end of each spring sleeve 9 is in contact with the side face, deviating from the roller groove 61, of the bottom end of the swing rod 6, the spring 91 is inserted into one end of each spring sleeve 9, and the gland 8 is connected to the side wall of the fixture body 2 to close the guide holes 23 and the spring sleeves 9. The end part of the spring sleeve 9 facing one end of the swing rod 6 is arc-shaped, the spring 91 is arranged in the spring sleeve 9 and sealed in the spring sleeve 9 through the gland 8 to provide restoring force, when the inclined block 12 slides downwards, the distance between the pair of swing rods 6 is reduced, the pair of spring sleeves 9 move towards each other under the action of the spring 91 to push the pair of swing rods 6 to rotate outwards, and therefore the pair of claws 3 are far away to release the pipe. The guide hole 23 serves to guide the movement of the spring housing 9.

The top of the inclined block 12 comprises two inclined planes which are oppositely arranged and inclined upwards, and the bottom end of each swing rod 1 is respectively contacted with one inclined plane;

the driving part comprises an oil cylinder 13 and an oil cylinder seat 14, a guide sleeve 141 is arranged at the top of the oil cylinder seat 14,

the oil cylinder seat 14 is connected to the bottom of the fixture body 2, the guide sleeve 141 extends into the fixture body 2, and the bottom of the inclined block 12 is connected in the guide sleeve 141 in a sliding manner;

the oil cylinder 13 is arranged along the vertical direction, the oil cylinder 13 is connected to the oil cylinder base 14, the extending end of the oil cylinder 13 is connected to the bottom of the inclined block 12, the extending end of the oil cylinder 13 extends out or retracts to drive the inclined block 12 to lift so as to drive the bottom ends of the pair of swing rods 6 to slide along the inclined plane to be far away or close, and therefore the top ends of the swing rods 6 drive the pair of clamping jaws 3 to be close to or far away so as to clamp or loosen a pipe. The two inclined surfaces of the inclined block 12 enable the inclined block 12 to form a structure with a narrow top and a wide bottom in the axial direction parallel to the guide pin shaft 4.

The pipe clamp further comprises a cover plate, wherein an access hole is formed in at least one of the top end face and the four side faces of the clamp body 2, and the cover plate covers the access hole.

In other embodiments of the present invention, the driving element may also be a motor that drives the incline block 12 to move up and down in cooperation with a lead screw transmission or the like.

As a preferred scheme, the top surface of the clamp body 2 is provided with a pair of first access holes, the first access holes are positioned above the guide pin shafts 4 and are connected to the clamp body 2 through first cover plates 1 by bolts so as to cover the first access holes; a second access hole is formed in the first side face of the fixture body 2, corresponds to the swing rod 6, and is connected to the fixture body 2 through a second cover plate 7 through bolts to cover the second access hole; and a third access hole is formed in the second side surface of the clamp body 2, corresponds to the swing rod 6 and is connected to the clamp body 2 through a third cover plate 15 through a bolt so as to cover the third access hole. Each access hole is used for installing each spare part, also can overhaul each part in the anchor clamps body 2, connects in anchor clamps body 2 through the apron and carries out the shutoff.

The utility model relates to a pipe clamp, which uses the mechanical actions of an oil cylinder 13, an inclined block 12, a swing rod 6 and guide pin shafts 4 to convert the stroke of the oil cylinder 13 in the vertical direction into the centering motion of the two guide pin shafts 4, wherein the oil cylinder 13 is connected with the inclined block 12, the inclined block 12 is connected between rollers 10 of a pair of swing rods 6 in a sliding way, the swing rods 6 can do relative rotary motion around a fixed pin 16 so as to drive the guide pin shafts 4 to slide along the horizontal direction, the lifting position of the inclined block 12 is controlled by the movement of the oil cylinder 13, and the top ends of the pair of swing rods 6 are close to or far away from each other under the action of a spring 91, so as to drive a claw 3 connected with the guide pin shafts 4 to clamp or loosen, and the specific process is as follows:

as shown in fig. 3, when the oil cylinder 13 drives the swash block 12 to ascend, the swash block 12 extends out of the guide sleeve 141 of the oil cylinder base 14, because the bottom of the swash block 12 is wide, the horizontal position of the rollers 11 at the bottoms of the pair of swing rods 6 is far away from the center of the swash block 12, the pair of swing rods 6 rotate inwards around the fixing pins 16 respectively, at this time, the second included angle between the swing rods 6 and the guide pins 4 is increased, the top ends of the pair of swing rods 6 approach each other, and the pair of guide pins 4 are driven to approach each other, so that the clamp is clamped.

As shown in fig. 4, when the oil cylinder 13 drives the swash block 12 to descend, the swash block 12 retracts into the guide sleeve 141 of the oil cylinder base 14, because the top of the swash block 12 is narrow, the distance between the horizontal position of the roller 11 at the bottom of the swing rod 6 and the center of the swash block 12 is short, the pair of swing rods 6 respectively rotate outwards around the fixing pin 16, at this time, the second included angle between the swing rod 6 and the guide pin shaft 4 is reduced, the top ends of the pair of swing rods 6 are far away from each other, the pair of guide pin shafts 4 are driven to be far away, and the clamp is loosened.

The processing of the pipe is usually realized by a machine tool, the conventional processing mode is clamping by a chuck of the machine tool, but because the specification of the pipe is very large and long, the chuck and the main spindle box of the machine tool are increased along with the increase of the specification of the pipe, so that the manufacturing difficulty and the cost are increased, on one device, the pipe clamp can be used for clamping a pipe (matched with a pipe thread special auxiliary machine) singly or simultaneously, or even a plurality of pipe clamps can be used for correspondingly processing the pipe, the machining can be realized by matching with a facing head to machine the excircle or pipe thread of a pipe, or matching with a saw blade or a cut-off knife to cut off and discharge the pipe, so that the phenomenon that the size of the pipe is increased to cause the corresponding increase of a spindle box and a chuck of a machine tool is avoided, the clamping space is changed from the spindle box into a lathe bed with larger space, and the machining difficulty and cost of the spindle box and the chuck caused by the increase are reduced.

Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A pipe clamp, comprising:

the clamp comprises a clamp body (2), wherein a groove (21) is formed in the middle of the top of the clamp body (2);

the pair of clamping jaws (3) are arranged in the groove (21) and used for clamping a pipe;

the pair of swing rods (6) are oppositely arranged, are rotatably connected in the clamp body (2), and are positioned at one ends, deviating from each other, of the pair of clamping jaws (3);

the inclined block (12) is arranged between the bottoms of the pair of swing rods (6);

the pair of elastic components are arranged on one side of the bottoms of the pair of swing rods (6) which is deviated from each other;

the driving piece drives the inclined block (12) to lift so as to drive the pair of swing rods (6) to rotate inwards or outwards, and the pair of clamping jaws (3) are close to or far away from each other.

2. The pipe clamp as claimed in claim 1, further comprising a pair of guide pins (4), wherein a shaft hole (22) penetrating through the side wall of the groove (21) along the horizontal direction is formed in the top of the clamp body (2), the pair of guide pins (4) are respectively inserted into the shaft holes (22) on two sides of the groove (21), and two ends of each guide pin (4) are respectively connected to one of the clamping jaws (3) and one of the swing rods (6);

the pair of swing rods (6) can drive the pair of guide pin shafts (4) to move oppositely or oppositely along the horizontal direction in a rotating mode, and therefore the clamping jaws (3) are driven to be close to or far away from.

3. The pipe clamp according to claim 2, characterized in that a pair of said jaws (3) are provided with positioning grooves (31) on surfaces facing away from each other, said positioning grooves (31) are arranged in an axial direction perpendicular to said guide pins (4), a pair of said guide pins (4) are provided with protrusions (41) arranged in a radial direction on surfaces facing each other, and said protrusions (41) are engaged in said positioning grooves (31).

4. The pipe clamp according to claim 2, characterized in that the outer wall of the guide pin shaft (4) is provided with a guide key groove (43) arranged along the axial direction, and the guide key groove (43) is slidably connected to the clamp body (2) through a guide key (5).

5. The pipe clamp as claimed in claim 3, wherein the guide pin shaft (4) is provided with a swing rod groove (42) arranged along the radial direction, and the top end of the swing rod (6) is inserted into the swing rod groove (42);

the side walls opposite to the pair of swing rod grooves (42) comprise vertical parts and inclined parts connected to two ends of the vertical parts, the inclined parts incline towards the clamping jaws (3), and the top ends of the swing rods (6) are in contact with the vertical parts.

6. A pipe clamp according to claim 1, characterized in that a pair of said jaws (3) are provided with arcuate portions on opposite surfaces for gripping the outer circumference of the pipe.

7. The pipe clamp according to claim 1, further comprising a pair of fixing pins (16) and a pair of roller assemblies, wherein the middle part of each swing link (6) is connected to the clamp body (2) through one fixing pin (16);

the roller assembly comprises a roller shaft (10) and rollers (11) sleeved on the roller shaft (10), roller grooves (61) are formed in the bottom end of the swing rod (6), the roller grooves (61) of the swing rod (6) are arranged oppositely, each roller shaft (10) is connected to one side wall of each roller groove (61), and the rollers (11) are in contact with the two sides of the inclined block (12) respectively.

8. The pipe clamp according to claim 7, characterized in that the elastic component comprises a spring sleeve (9), a spring (91) and a pressing cover (8), guide holes (23) are formed in two sides of the clamp body (2), one end of each spring sleeve (9) is inserted into one guide hole (23), the other end of each spring sleeve is in contact with the side face, deviating from the roller groove (61), of the bottom end of the swing rod (6), the spring (91) is inserted into the end of the spring sleeve (9), and the pressing cover (8) is connected to the side wall of the clamp body (2) to close the guide holes (23) and the spring sleeve (9).

9. The pipe clamp according to claim 1, characterized in that the top of the sloping block (12) comprises two oppositely arranged and upwardly sloping slopes, and the bottom end of each pendulum rod (6) is in contact with one of the slopes;

the driving piece comprises an oil cylinder (13) and an oil cylinder seat (14), a guide sleeve (141) is arranged at the top of the oil cylinder seat (14),

the oil cylinder seat (14) is connected to the bottom of the clamp body (2), the guide sleeve (141) extends into the clamp body (2), and the bottom of the inclined block (12) is connected into the guide sleeve (141) in a sliding manner;

the oil cylinder (13) is connected to the oil cylinder base (14), the extending end of the oil cylinder (13) is connected to the bottom of the inclined block (12), the extending end of the oil cylinder (13) extends out or retracts to drive the inclined block (12) to lift so as to drive the bottom ends of the pair of swing rods (6) to slide along the inclined plane to be far away or close, and therefore the top ends of the swing rods (6) drive the pair of clamping jaws (3) to be close to or far away.

10. The pipe clamp according to claim 1, further comprising a cover plate, wherein at least one of the top end surface and the four side surfaces of the clamp body (2) is provided with an access opening, and the cover plate covers the access opening.