WO2020093259A1 - Combined central support for laser cutting pipe - Google Patents

Abstract

Disclosed is a combined central support for laser cutting a pipe. The central support comprises a four-claw combined support main body (1) and a large through hole gear transmission assembly (2) which are mutually connected. The four-claw combined support main body comprises four perpendicular single-claw support assemblies (3) arranged in such a manner that every two are opposite one another, wherein each single-claw support assembly is connected with a pulley clamping assembly (4), and the single-claw support assembly is used for driving the corresponding pulley clamping assembly to move. The single-claw support assemblies comprise a power mechanism (5), a tapered wedge mechanism (7) and a displacement transmission mechanism (8), wherein the power mechanism is connected with the tapered wedge mechanism by means of screw rod and nut assemblies (6); the tapered wedge mechanism comprises a tapered wedge connecting block (71), a translation guide rail (72), a translation sliding block (73), a skewing guide rail (74), a skewing sliding block (75) and a skewing adapter plate (76); and the displacement transmission mechanism comprises a perpendicular clamping block (81) and a dovetail moving upper plate (84). The central support is simple in structure, easy to manufacture, good in terms of sealing and dust-proof performances, and low in usage cost.

Description

Combined laser tube cutting center bracket Technical field

The invention relates to the field of laser cutting, in particular to a combined laser tube cutting center bracket, which is mainly used for clamping a rotating pipe to perform laser cutting.

Background technique

The current tube cutting center bracket mainly includes a mounting base plate, a servo motor, a clamping device, a controller, and a large through-hole bearing. Among them, the servo motor and the large through-hole bearing are fixed on the mounting base plate. When in use, the large through-hole bearing has teeth outside The ring is connected with the servo motor, and the servo motor drives the large through-hole bearing toothed outer ring to rotate through gear transmission, thereby driving the printed circuit board, clamping device, controller and clamped pipe on the large through-hole bearing toothed outer ring Spin.

The clamping device has 2 sets of 4 clamping support plates, each clamping support plate slides on the corresponding linear guide rail slider, and the linear stepper motor is connected to the clamping support plate by the corresponding screw rod. Control the movement of the linear stepper motor to achieve the clamping and positioning of the pipe fittings.

In actual use, there are the following three problems:

1. The clamping force of the clamping device of the clamping device comes from the linear stepper motor. Due to the limitations of the current technical level and the volume of the center bracket, the clamping force of the clamping tube produced by the linear stepper motor is too small to satisfy the clamping Requirements for heavier pipe fittings.

2. Due to occasional equipment failure or human reasons, the single-end rotation or sagging of the pipe fittings will produce a large reverse force on the clamping device, and these large reverse forces will eventually be transmitted to the linear stepping through the screw The motor often leads to damage of the linear stepper motor, and the maintenance is complicated and the cost is high.

3. Due to the limitation of the structure and volume of the center bracket, the linear guide slides, screw nuts and other moving parts in the clamping device have a low degree of sealing, and a large amount of dust, water, and oil stains generated during the laser cutting process easily penetrate into these moving parts Moreover, it is difficult to clean up, which seriously reduces the service life of the center bracket.

Summary of the invention

In view of the defects in the prior art, the object of the present invention is to provide a combined laser tube cutting center bracket, which has the characteristics of simple structure, easy manufacturing, good sealing and dustproof, and low use cost.

To achieve the above objectives, the technical solutions adopted by the present invention are:

A combined laser tube cutting center bracket includes a four-jaw combined bracket body and a large through-hole gear transmission component connected to each other. The four-jaw combined bracket body includes four vertical, two-to-one opposed single-jaw bracket components, four The single-jaw bracket assemblies are arranged opposite to each other, and each single-jaw bracket assembly is connected to a pulley clamping assembly, and the single-jaw bracket assembly is used to drive the corresponding pulley clamping assembly to move;

The single-jaw bracket assembly includes a power mechanism, an inclined wedge mechanism and a displacement transmission mechanism; the power mechanism and the inclined wedge mechanism are connected by a screw nut assembly; the inclined wedge mechanism and the displacement transmission mechanism are connected by a vertical clamping block;

The inclined wedge mechanism includes an inclined wedge connecting block, a translation guide rail, a translation slider, an inclined guide rail, an inclined slider, and an inclined adapter plate; the displacement transmission mechanism includes a vertical clamping block and a dovetail moving upper plate;

In the inclined wedge mechanism: the translation guide rail and the translation slider are a pair of standard linear motion components, the inclined guide rail and the inclined slider are another pair of standard linear motion components; the end of the inclined wedge connecting block and the screw nut assembly Connected, the translation slider is fixed on the surface of the inclined wedge connecting block parallel to the axial direction of the screw nut assembly, the translation guide rail is axially parallel to the screw nut assembly, the translation guide rail is fixed on the mounting seat; the inclined guide rail is fixed on the inclined wedge The side of the connecting block, and the side of the inclined wedge connecting block forms a certain angle with the axial direction of the screw nut assembly, and the inclined shift adapter plate is fixed on the inclined shift slider;

In the displacement transmission mechanism, the dovetail moving upper plate and the dovetail fixed lower plate are a pair of linear motion components whose movement direction is parallel to the radial direction of the screw nut assembly; one end of the vertical clamping block is fixed on the top of the inclined shift adapter plate , The other end is connected with the dovetail mobile upper plate;

The power mechanism drives the inclined wedge connecting block of the inclined wedge mechanism to move along the axial direction of the screw nut assembly through the screw nut assembly, and drives the inclined movement guide rail to move at an angle with the axial direction of the screw nut assembly, thereby generating The radial movement component of the screw nut assembly drives the tilting slider, the tilting adapter plate, the vertical clamping block, and the dovetail moving upper plate to move along the radial direction of the screw nut assembly.

Based on the above technical solution, the displacement transmission mechanism further includes a dovetail fixed lower plate, the dovetail fixed lower plate is fixed on the mounting seat, restricting the movement of the matched dovetail upper plate can only move in the radial direction of the screw nut assembly; The pulley clamping assembly is fixed on the dovetail moving upper plate, which is driven by the dovetail moving upper plate to move in the radial direction of the screw nut assembly to achieve clamping / unclamping of the pipe.

On the basis of the above technical solution, the dovetail fixed lower plate is provided with a connecting groove, and the top of the vertical clamping plate passes through the connecting groove and is connected with the dovetail moving upper plate.

Based on the above technical solution, the dovetail moving upper plate is provided with a reverse groove, and a pressure sensor is provided on the vertical clamping block. The pressure sensor is inserted into the reverse groove together with the upper end of the vertical clamping block to clamp The clamping force of the pipe is transmitted to the pressure sensor through the pulley clamping assembly and the dovetail moving upper plate, and the pressure sensor displays the corresponding clamping pressure.

On the basis of the above technical solution, the single-jaw bracket assembly further includes a mounting base, the power mechanism, the inclined wedge mechanism and the displacement transmission mechanism are all installed inside the mounting base, and the four mounting bases are connected end to end.

Based on the above technical solution, the displacement transmission mechanism further includes a displacement sensing mechanism for sensing the displacement of the tilting slider, the displacement sensing mechanism includes a displacement sensor lever and a displacement sensor housing, the The displacement sensor pull rod is fixed on the oblique displacement adapter plate, and the displacement sensor housing is fixed on the mounting base.

On the basis of the above technical solution, the four-jaw combination bracket main body further includes a housing cover plate, which covers the upper part of the four-jaw combination bracket main body and is composed of four sealing covers matching the mounting seat.

On the basis of the above technical solution, a controller assembly is provided on the cover plate of the housing for controlling all working processes of the main body of the four-jaw combination bracket.

Based on the above technical solution, the four-jaw combination bracket body further includes a brush conductive ring assembly, the brush conductive ring assembly is fixed to the lower portion of the four-jaw combination bracket body, and the four-jaw combination bracket body is provided by the brush electrode assembly Electric energy and operation control signal, the brush electrode assembly is fixed on the bottom plate.

Based on the above technical solution, a laser ranging assembly is provided on the brush electrode assembly, and the laser ranging assembly is controlled by the controller assembly, and is used to monitor the clamping deviation of the rotating pipe.

Compared with the prior art, the advantages of the present invention are:

(1) The combined laser tube cutting center bracket of the present invention, the main body of the four-jaw combined bracket includes four sequentially connected single-jaw bracket assemblies, and the corresponding pulley clamping assembly is driven by the single-jaw bracket assembly to achieve clamping and loosening The single-jaw bracket assembly includes a power mechanism, an inclined wedge mechanism and a displacement transmission mechanism; the power mechanism drives the inclined wedge connection block of the inclined wedge mechanism to move along the axial direction of the screw nut assembly, driving the inclined movement guide rail to be integrated with the axial direction of the screw shaft The direction of the included angle moves to produce a radial movement component of the screw nut assembly, which drives the oblique movement slider, the oblique movement adapter plate, the vertical clamping block, and the dovetail moving upper plate to move in the radial direction of the screw nut assembly. Rotate the moving direction by 90 degrees, according to the principle of inclined plane, choose the angle between the inclined guide rail and the axial direction of the screw nut assembly to realize the enlargement of the clamping force and meet the requirements of clamping heavier pipe fittings; use the inclined wedge mechanism The clamping force is amplified, which has the advantages of simple structure, small size and simple adjustment.

(2) The combined laser tube cutting center bracket of the present invention, the power mechanism realizes the amplification of the clamping force of the pipe fitting through the inclined wedge mechanism, so the reaction force generated by the pipe fitting on the power mechanism is correspondingly reduced by the inclined wedge mechanism, reducing the power The reaction force of the mechanism protects the valuable power mechanism from accidental equipment failure or man-made damage.

(2) The combined laser tube cutting center bracket of the present invention, the power mechanism, the inclined wedge mechanism and the displacement transmission mechanism are all installed inside the mounting base, and the four mounting bases are connected end to end, and the shell cover plate covers the main body of the four-jaw combined bracket It is composed of four sealing caps matching the mounting seat, which makes the center bracket have better sealing performance, can prevent contaminants such as dust, oil and water from entering the bracket, thereby extending the service life of the center bracket and reducing the cost of use .

BRIEF DESCRIPTION

1 is a schematic structural view of a combined laser tube cutting center bracket in an embodiment of the present invention;

Figure 2 is an exploded view of Figure 1;

3 is a schematic structural view of the main body of the four-jaw combination bracket in the embodiment of the present invention;

Figure 4 is an exploded view of Figure 3;

5 is an exploded view of a single-jaw bracket assembly according to an embodiment of the present invention;

6 is a partial structural diagram of a single-jaw bracket assembly according to an embodiment of the present invention;

7 is a top view of FIG. 6;

Figure 8 is a schematic diagram of the structure of the dovetail moving upper plate;

9 is a schematic structural view of a brush conductive ring assembly.

In the picture: 1- four-jaw combined bracket body, 2- large through-hole gear transmission assembly, 3- single-jaw bracket assembly, 4- pulley clamping assembly, 5- power mechanism, 6-screw nut assembly, 7- inclined wedge mechanism , 71-inclined wedge connecting block, 72-translation rail, 73-translation slide, 74-inclined guide rail, 75-inclined slide, 76-inclined adapter plate, 8-displacement transmission mechanism, 81-vertical clamp Tight block, 82-pressure sensor, 83-dovetail fixed lower plate, 84-dovetail moving upper plate, 85-reverse groove, 9-displacement sensing mechanism, 10-displacement sensor lever, 11-displacement sensor housing, 12- Connection slot, 13-mounting seat, 14-housing cover plate, 15-sealing cover, 16-base plate, 17-dust cover, 18-brush electrode assembly, 19-laser ranging assembly, 20-brush conductive ring assembly , 201-brush printed board, 202-brush large conductive ring, 203-brush middle conductive ring, 204-brush small conductive ring, 205-brush pad, 21-controller assembly, 22-large through hole Bearing, 23-large through hole bearing with toothed outer ring.

detailed description

The present invention will be further described in detail below with reference to the drawings and embodiments.

As shown in FIGS. 1 and 2, an embodiment of the present invention provides a combined laser tube cutting center bracket, including a four-jaw combination bracket body 1, a large through-hole gear transmission assembly 2 and a bottom plate 16, a large through-hole gear transmission assembly 2 The hole bearing 22 is provided on the bottom plate 16, the four-jaw combination bracket main body 1 and the large through hole bearing toothed outer ring 23 of the large through hole gear transmission assembly 2 are connected to each other, and the bottom plate 16 is provided with a brush electrode assembly 18 and a laser ranging assembly 19和 dust cover 17.

The large through-hole gear transmission assembly 2 further includes a transmission mechanism that drives the large through-hole bearing toothed outer ring 23 to rotate, including a motor, a reducer, a coupling, and a driving gear that cooperate with each other, wherein the driving gear and the large through-hole bearing toothed outer ring 23 Engagement, when the large through-hole bearing toothed outer ring 23 rotates, it can drive the four-jaw combination bracket main body 1 and the clamped pipe member provided on the large through-hole bearing toothed outer ring 23 to rotate synchronously.

As shown in FIGS. 3 and 4, the four-jaw combined bracket body 1 includes a brush conductive ring assembly 20, a controller assembly 21, and four sequentially connected single-jaw bracket assemblies 3. The four single-jaw bracket assemblies 3 pass through the brushes The conductive ring assembly 20 is connected to the large through-hole bearing toothed outer ring 23 of the large through-hole gear transmission assembly 2, and the controller assembly 21 is used to control the operation of the four single-jaw bracket assemblies 3.

As shown in FIG. 9, in this embodiment, the brush conductive ring assembly 20 includes a brush printed board 201, and a brush large conductive ring 202 and a conductive ring 203 in the brush are sequentially arranged on the brush printed board 201 from outside to inside 、 Brush small conductive ring 204 and brush pad 205.

As shown in FIGS. 5, 6 and 7, the four single-jaw bracket assemblies 3 are arranged opposite to each other, and the four single-jaw bracket assemblies 3 are connected by a screw to form an integral body of an outer circle and an inner circle, and each single-jaw bracket assembly 3 They are all connected to a pulley clamping assembly 4, and the single-jaw bracket assembly 3 is used to drive the corresponding pulley clamping assembly 4 to move. In the present invention, the four pulley clamping assemblies 4 are arranged opposite to each other, of which two pulley clamps The holding assembly 4 realizes the clamping in the X direction, and the other two sliding clamping assemblies 4 realize the clamping in the Y direction.

The single-jaw bracket assembly 3 includes a power mechanism 5, an inclined wedge mechanism 7 and a displacement transmission mechanism 8; the power mechanism 5 and the inclined wedge mechanism 7 are connected by a screw nut assembly 6, and the power mechanism 5, the inclined wedge mechanism 7 and the displacement transmission mechanism 8 are all It is installed inside the mounting base 13 and the four mounting bases 13 are connected end to end. The center bracket of this embodiment further includes a housing cover plate 14 which covers the four-jaw combination bracket main body 1 and is composed of four sealing covers 15 matching the mounting seat 13. In this embodiment, the power mechanism 5 is the motor.

In the inclined wedge mechanism 7, the translation guide 72 and the translation slider 73 are a pair of standard linear motion components, and the inclined guide 74 and the inclined slider 75 are another pair of standard linear motion components.

The end of the inclined wedge connecting block 71 is connected to the screw nut assembly 6, the translation guide 72 is axially parallel to the screw nut assembly 6, the translation guide 72 is fixed on the mounting base 13, and the translation slider 73 is fixed on the inclined wedge connecting block 71 is parallel to the axial surface of the screw nut assembly 6, the side is fixed with an inclined guide rail 74, and the side of the inclined wedge connection block 71 forms a certain angle with the axial direction of the screw nut assembly 6, the inclined movement adapter plate 76 passes The tilting slider 75 is connected to the tilting guide rail 74, and the dovetail moving upper plate 84 is connected to the top of the tilting adapter plate 76 through a vertical clamping block 81.

In the displacement transmission mechanism 8: the dovetail moving upper plate 84 and the dovetail fixed lower plate 83 are a pair of linear motion components, the moving direction of which is parallel to the radial direction of the screw nut assembly 6; one end of the vertical clamping block 81 is fixed at an oblique shift adapter The top of the plate 76 and the other end are connected to the dovetail moving upper plate 84.

The power mechanism 5 drives the inclined wedge connecting block 71 of the inclined wedge mechanism 7 to move along the axial direction of the screw nut assembly 6, and drives the inclined guide rail 74 to move at an angle with the axial direction of the screw nut assembly 6, thereby generating The radial movement component of the screw nut assembly 6 drives the tilting slider 75, the tilting adapter plate 76, the vertical clamping block 81, and the dovetail moving upper plate 84 to move along the radial direction of the screw nut assembly 6 Rotated 90 degrees. The angle between the edge of the inclined guide rail 74 and the screw 6 can be adjusted according to the actual situation, and then the power of converting the axial movement of the screw nut assembly 6 into the radial movement is amplified to achieve the purpose of clamping the heavy pipe.

The pulley clamping assembly 4 is connected to the displacement transmission mechanism 8 through the dovetail moving upper plate 84 and the dovetail fixed lower plate 83. The dovetail fixed lower plate 83 is provided with a connecting groove 12, and the top of the vertical clamping block 81 passes through the connecting groove 12 and the dovetail The moving upper plate 84 is connected, and when the vertical clamping block 81 moves with the obliquely moving adapter plate 76, the dovetail moving upper plate 84 can slide on the dovetail fixed lower plate 83, and the sliding direction is in accordance with the movement of the obliquely moving slider 75 The direction is the same, and the displacement of the slide is the same as the displacement of the tilt slider 75.

As shown in FIG. 8, in the embodiment of the present invention, a reverse groove 85 is formed in the middle of the dovetail moving upper plate 84, and a pressure sensor 82 is provided on the vertical clamping block 81, and the pressure sensor 82 follows the upper end of the vertical clamping block 81 Inserted into the reverse groove 85 together, the clamping force for clamping the workpiece is transmitted to the pressure sensor 82 through the pulley clamping assembly 4, the dovetail moving upper plate 84, and the pressure sensor 82 can measure the clamping pressure of the pipe.

The single-jaw bracket assembly 3 further includes a displacement sensing mechanism 9 for sensing the displacement of the tilting slider 75, the setting direction is consistent with the radial direction of the screw nut assembly 6, and the displacement sensing mechanism 9 includes a displacement sensor housing connected to each other 11 and the displacement sensor pull rod 10, the displacement sensor housing 11 is fixed on the mounting base 13, and the displacement sensor pull rod 10 is fixed on the inclined shift adapter plate 76.

Since the controller assembly 21 can receive and display the data of the displacement sensing mechanism 9 and the pressure sensor 82 in real time, and thus can obtain the contact condition of each single-jaw bracket assembly 3 with the pipe, the worker can obtain the current pipe fittings through the controller assembly 21 in real time Clamped state. The controller component 21 has a built-in special control program, which automatically controls the movement of the four power mechanisms 5 according to the current actual position of the four single-jaw bracket components 3 and the actual value of the clamping force, and drives the corresponding screw nut component 6 to move back and forth, thereby driving The corresponding single-jaw bracket assembly 3 completes the clamping and loosening actions required for cutting the pipe.

The present invention is not limited to the above-mentioned embodiments. For those of ordinary skill in the art, without departing from the principles of the present invention, several improvements and retouches can be made. These improvements and retouches are also regarded as the protection of the present invention Within range. The contents that are not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims (10)

A combined laser tube cutting center bracket includes a four-jaw combined bracket body (1) and a large through-hole gear transmission assembly (2) formed by interconnection, characterized in that the four-jaw combined bracket body (1) includes four Vertical, two-to-one opposed single-jaw bracket assemblies (3), four single-jaw bracket assemblies (3) are arranged opposite to each other, each single-jaw bracket assembly (3) is connected to a pulley clamping assembly (4), The single-jaw bracket assembly (3) is used to drive the corresponding pulley clamping assembly (4) to move; The single-jaw bracket assembly (3) includes a power mechanism (5), an inclined wedge mechanism (7) and a displacement transmission mechanism (8); the power mechanism (5) and the inclined wedge mechanism (7) pass a screw nut assembly ( 6) Connection; the inclined wedge mechanism (7) and the displacement transmission mechanism (8) are connected by a vertical clamping block (81); The inclined wedge mechanism (7) includes an inclined wedge connecting block (71), a translation guide (72), a translation slider (73), an inclined guide (74), an inclined slider (75), and an inclined adapter plate (76); the displacement transmission mechanism (8) includes a vertical clamping block (81) and a dovetail moving upper plate (84); In the inclined wedge mechanism (7): the translation guide rail (72) and the translation slider (73) are a pair of standard linear motion components, and the inclined guide rail (74) and the inclined slider (75) are another pair of standard straight lines Movement component; the end of the inclined wedge connecting block (71) is connected with the screw nut assembly (6), and the translation slide (73) is fixed on the inclined wedge connecting block (71) and the screw nut assembly (6) axially parallel On the surface, the translation guide (72) and the screw nut assembly (6) are axially parallel, the translation guide (72) is fixed on the mounting seat (13); the inclined guide (74) is fixed on the inclined wedge connecting block (71) The side of the inclined wedge connecting block (71) and the axis of the screw nut assembly (6) form a certain angle, and the inclined shift adapter plate (76) is fixed on the inclined shift slider (75); In the displacement transmission mechanism (8): the dovetail moving upper plate (84) and the dovetail fixed lower plate (83) are a pair of linear motion components whose direction of motion is parallel to the radial direction of the screw nut assembly (6); the vertical clamp One end of the tightening block (81) is fixed on the top of the inclined shift adapter plate (76), and the other end is connected to the dovetail moving upper plate (84); The power mechanism (5) drives the inclined wedge connecting block (71) of the inclined wedge mechanism (7) through the screw nut assembly (6) to move along the axial direction of the screw nut assembly (6), driving the inclined guide rail (74) Move in the direction of an angle with the axial direction of the screw nut assembly (6), thereby generating a radial movement component of the screw nut assembly (6), driving the oblique movement slider (75), oblique movement adapter plate (76) ), The vertical clamping block (81), the dovetail moving upper plate (84) move in the radial direction of the screw nut assembly (6). The combined laser tube cutting center bracket according to claim 1, wherein the displacement transmission mechanism (8) further includes a dovetail fixed lower plate (83), and the dovetail fixed lower plate (83) is fixed on the mounting seat (13), the upper plate (84) which restricts the movement of the dovetail paired with it can only move in the radial direction of the screw nut assembly (6); the pulley clamping assembly (4) is fixed on the upper plate (84) of the dovetail movement , The upper plate (84) is moved by the dovetail to move along the radial direction of the screw nut assembly (6), and the clamping / unclamping of the pipe is realized. A combined laser tube cutting center bracket according to claim 2, characterized in that: the dovetail fixed lower plate (83) is provided with a connecting groove (12), and the top of the vertical clamping plate (81) It is connected with the dovetail moving upper plate (84) through the connecting groove (12). The combined laser tube cutting center bracket according to claim 1, characterized in that: the dovetail moving upper plate (84) is provided with a reverse groove (85), and a vertical clamping block (81) is provided with a The pressure sensor (82) is inserted into the reverse groove (85) together with the upper end of the vertical clamping block (81), and the clamping force of the clamping pipe is moved by the pulley clamping assembly (4) and the dovetail The upper plate (84) is transferred to the pressure sensor (82), and the pressure sensor (82) displays the corresponding clamping pressure. The combined laser tube cutting center bracket according to claim 1, characterized in that the single-jaw bracket assembly (3) further includes a mounting seat (13), the power mechanism (5), and the inclined wedge mechanism (7) and the displacement transmission mechanism (8) are installed inside the mounting base (13), and the four mounting bases (13) are connected end to end. The combined laser tube cutting center bracket according to claim 5, characterized in that: the displacement transmission mechanism (8) further includes a displacement sensing mechanism (9), which is used to sense the oblique movement slider ( 75) Displacement; the displacement sensing mechanism (9) includes a displacement sensor lever (10) and a displacement sensor housing (11), the displacement sensor lever (10) is fixed on the inclined shift adapter plate (73), so The displacement sensor housing (11) is fixed on the mounting seat (13). The combined laser tube cutting center bracket according to claim 1, characterized in that: the main body (1) of the four-jaw combined bracket further includes a housing cover plate (14), and the housing cover plate (14) is covered with The upper part of the four-claw combined bracket body (1) is composed of four sealing covers (15) matching the mounting seat (13). A combined laser tube cutting center bracket according to claim 7, characterized in that: a controller assembly (21) is provided on the housing cover plate (14) for controlling the four-jaw combination bracket body (1) All the working process. A combined laser tube cutting center bracket according to claim 1, characterized in that the four-jaw combined bracket body (1) further comprises a brush conductive ring assembly (20), and the brush conductive ring assembly (20) It is fixed on the lower part of the main body (1) of the four-jaw combination bracket, and provides power and operation control signals to the main body (1) of the four-jaw combination bracket through the brush electrode assembly (18). on. A combined laser tube cutting center bracket according to claim 9, characterized in that: the brush electrode assembly (18) is provided with a laser ranging assembly (19), and the laser ranging assembly (19) is controlled by The controller (21) is used to monitor the clamping deviation of the rotating pipe.

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