阅读说明：本技术 一种高效稳定的防盗门加工用门框切角机 (High-efficient stable door frame cornering machine for burglary-resisting door processing ) 是由 李文友 孙超 于 2021-06-21 设计创作，主要内容包括：本发明涉及门框加工设备技术领域,提出了一种高效稳定的防盗门加工用门框切角机,包括上料机构、切角机构、夹持机构和出料机构,切角机构用于在待切料上切出45°夹角,切角机构具有冲压头和支撑台,支撑台开设有豁口,夹持机构包括传输带置于豁口内；承载台为多个；夹持件为两组且分别设于承载台的两侧,两组夹持件对称设置,夹持件具有可沿竖直方向移动的模头,相对的两个模头可相互靠近或远离；挡板设于支撑台上且用于使两个相对的模头相互靠近；压板设于支撑台上且可沿竖直方向移动,压板用于将待切料压在支撑台上。通过上述技术方案,解决了现有技术中切角机不能自动化加工且仅能针对一个规格的管材进行切角加工的问题。(The invention relates to the technical field of door frame processing equipment, and provides an efficient and stable door frame corner cutting machine for processing a security door, which comprises a feeding mechanism, a corner cutting mechanism, a clamping mechanism and a discharging mechanism, wherein the corner cutting mechanism is used for cutting a 45-degree included angle on a material to be cut, the corner cutting mechanism is provided with a punching head and a supporting table, the supporting table is provided with a notch, and the clamping mechanism comprises a transmission belt arranged in the notch; the number of the bearing tables is multiple; the two groups of clamping pieces are respectively arranged at two sides of the bearing table, the two groups of clamping pieces are symmetrically arranged, the clamping pieces are provided with die heads capable of moving along the vertical direction, and the two opposite die heads can be close to or far away from each other; the baffle is arranged on the support table and is used for enabling the two opposite die heads to be close to each other; the clamp plate is arranged on the supporting platform and can move in the vertical direction, and the clamp plate is used for pressing the material to be cut on the supporting platform. Through above-mentioned technical scheme, the problem of prior art intermediate corner cut machine automated processing can not and only can carry out corner cut processing to the tubular product of a specification has been solved.)

1. The utility model provides a high-efficient stable door frame cornering machine for burglary-resisting door processing, includes feed mechanism (19), corner cut mechanism, fixture and discharge mechanism (20), feed mechanism (19) are used for sending into waiting to cut the material on the fixture, fixture is used for the centre gripping and propelling movement wait to cut the material, corner cut mechanism is used for cutting 45 contained angles on waiting to cut the material, discharge mechanism (20) are used for transporting the material that cuts, corner cut mechanism has punching press head (21) that can follow vertical direction and horizontal square motion respectively, its characterized in that, corner cut mechanism still has supporting bench (1) and flush plate (23), flush plate (23) are located on punching press head (21), the opening has been seted up to supporting bench (1), fixture includes:

the conveying belt (2) is arranged in the notch and can do circular discontinuous motion;

the carrying tables (3) are arranged on the conveying belt (2) at intervals, and the carrying tables (3) are used for being in contact with materials;

the two groups of clamping pieces (4) are arranged on two sides of the bearing table (3) respectively, the two groups of clamping pieces (4) are symmetrically arranged, each clamping piece (4) is provided with a die head (5) capable of moving along the vertical direction, each die head (5) is provided with a 45-degree shaped groove, and the two opposite die heads (5) can be close to or far away from each other;

a baffle (6) arranged on the support table (1) and used for enabling the two opposite die heads (5) to approach each other; and

the pressing plate (7) is arranged on the supporting table (1) and can move along the vertical direction, and the pressing plate (7) is used for pressing the material to be cut on the supporting table (1);

the clamping pieces (4) push the pressing plate (7) to ascend so as to avoid the clamping pieces (4), and the pressing plate (7) is in contact with materials when being located between the two clamping pieces (4) side by side.

2. The doorframe corner cutting machine for the processing of an efficient and stable anti-theft door as claimed in claim 1, wherein the die head (5) is provided with a first inclined surface (22), the surface of the pressure plate (7) contacting with the material is provided with a first round angle, and the first inclined surface (22) is contacted with the first round angle to realize that the die head (5) pushes the pressure plate (7) to ascend.

3. The efficient and stable door frame chamfering machine for the burglar-proof door according to claim 2, wherein the clamping mechanism further comprises:

the concave plate (8) is arranged on the support table (1), the concave plate is provided with supporting legs, the supporting legs are in contact with the support table (1), and two ends of the pressing plate (7) are respectively in sliding connection with the two supporting legs;

one end of the first spring (9) is connected with the pressing plate (7), the other end of the first spring is connected with the middle of the concave plate (8), and the axis of the first spring (9) is in the vertical direction.

4. The efficient and stable doorframe corner cutting machine for burglar-proof door working as claimed in claim 1, wherein said clamp (4) further comprises:

the base (10) is provided with a side plate and a bottom plate, the side plate is arranged on the bottom plate, and the bottom plate is arranged on the conveying belt (2);

the horizontal sliding plate (11) is arranged on the bottom plate in a sliding mode, the sliding direction of the horizontal sliding plate is perpendicular to the moving direction of the conveying belt (2) on the same plane, and the horizontal sliding plate (11) is provided with a storage groove;

one end of the second spring (12) is connected with the horizontal sliding plate (11), and the other end of the second spring is connected with the side plate;

the vertical sliding plate (13) is arranged in the object placing groove in a sliding mode along the vertical direction and is connected with the die head (5);

and the third spring (14) is arranged in the object placing groove, one end of the third spring is connected with the bottom wall of the object placing groove, and the other end of the third spring is connected with the vertical sliding plate (13).

5. The efficient and stable door frame corner cutting machine for the processing of the anti-theft door as claimed in claim 4, wherein the bottom plate is provided with a sliding groove, the end of the horizontal sliding plate (11) is provided with a protrusion (15), the protrusion (15) is arranged in the sliding groove in a penetrating manner, and the horizontal sliding plate (11) is in sliding connection with the bottom plate by means of the protrusion (15) and the sliding groove.

6. The efficient and stable doorframe corner cutting machine for the processing of the anti-theft door as claimed in claim 5, wherein the baffles (6) have a straight line part and two arc parts, the two arc parts are symmetrically arranged at the two ends of the straight line part, the baffles (6) are symmetrically arranged, and the two baffles (6) can be relatively close to or far away from each other.

7. The efficient and stable doorframe corner cutting machine for burglar-proof door machining according to claim 6, further comprising an adjusting member, wherein the adjusting member comprises:

the support plate (16) is arranged on the support table (1), and the support rod is provided with a threaded hole;

and the ejector rod (17) penetrates through the threaded hole, the ejector end of the ejector rod is in contact with the baffle (6), and the ejector rod (17) is used for enabling the two baffles (6) to be close to each other.

8. The high-efficiency stable door frame corner cutting machine for the processing of the anti-theft door as claimed in claim 1, further comprising a material collecting box (18), wherein the material collecting box (18) is arranged in the notch and is used for collecting cut waste materials.

Technical Field

The invention relates to the technical field of door frame processing equipment, in particular to a high-efficiency and stable door frame corner cutting machine for processing an anti-theft door.

Background

The anti-theft door is called anti-theft safety door, and has anti-theft and safety performance. The door frame for the anti-theft door is a frame formed by bending a pipe and welding, and in the prior art, the door frame is formed by cutting a transverse door frame and a vertical door frame which are to be cut by a cutting machine at a 45-degree cutting angle, so that the transverse door frame and the vertical door frame form a 90-degree door frame angle after being combined. However, the angle cutting machine is not automated, and can only cut the angle of a pipe with one specification. Therefore, the conventional corner cutting machine not only has low corner cutting efficiency, but also cannot cut corners of pipes with different specifications, so that an automatic corner cutting machine suitable for multiple specifications is needed.

Disclosure of Invention

The invention provides an efficient and stable door frame corner cutting machine for machining a security door, and solves the problems that in the prior art, a corner cutting machine cannot perform automatic machining and can only perform corner cutting machining on a pipe with one specification.

The technical scheme of the invention is as follows: the utility model provides a high-efficient stable door frame cornering machine for burglary-resisting door processing, includes feed mechanism, corner cut mechanism, fixture and discharge mechanism, feed mechanism is used for sending into waiting to expect the cutting material on the fixture, fixture is used for centre gripping and propelling movement wait to expect the cutting material, corner cut mechanism is used for cutting 45 contained angles on waiting to expect the cutting material, discharge mechanism is used for transporting the material of cutting, corner cut mechanism has the punching press head that can follow vertical direction and horizontal square motion respectively, corner cut mechanism still has a brace table and flush plate, flush plate is located on the punching press head, a brace table has seted up the opening, fixture includes:

the conveying belt is arranged in the notch and can do circular discontinuous motion;

the bearing tables are arranged on the conveying belt at intervals and are used for contacting with materials;

the two groups of clamping pieces are symmetrically arranged, each clamping piece is provided with a die head capable of moving along the vertical direction, each die head is provided with a 45-degree groove, and the two opposite die heads can be close to or far away from each other;

the baffle is arranged on the support table and is used for enabling the two opposite die heads to approach each other; and

the pressing plate is arranged on the supporting table and can move along the vertical direction, and the pressing plate is used for pressing the material to be cut on the supporting table;

the clamping piece pushes the pressing plate to ascend so as to avoid the clamping piece, and the pressing plate is in contact with the material when being located between the two clamping pieces side by side.

As a further technical scheme, the die head is provided with a first inclined surface, the surface, contacting with the material, of the pressing plate is provided with a first fillet, and the first inclined surface is contacted with the first fillet so as to realize that the die head pushes the pressing plate to ascend.

As a further technical solution, the clamping mechanism further includes:

the concave plate is arranged on the support table and provided with supporting legs, the supporting legs are in contact with the support table, and two ends of the pressing plate are respectively in sliding connection with the two supporting legs;

one end of the first spring is connected with the pressing plate, the other end of the first spring is connected with the middle of the concave plate, and the axis of the first spring is in the vertical direction.

As a further aspect, the holder further includes:

the base is provided with a side plate and a bottom plate, the side plate is arranged on the bottom plate, and the bottom plate is arranged on the transmission belt;

the horizontal sliding plate is arranged on the bottom plate in a sliding mode, the sliding direction of the horizontal sliding plate is perpendicular to the moving direction of the conveying belt on the same plane, and the horizontal sliding plate is provided with a storage groove;

one end of the second spring is connected with the horizontal sliding plate, and the other end of the second spring is connected with the side plate;

the vertical sliding plate is arranged in the object placing groove in a sliding mode along the vertical direction and is connected with the die head;

the third spring is arranged in the object placing groove, one end of the third spring is connected with the bottom wall of the object placing groove, and the other end of the third spring is connected with the vertical sliding plate.

As a further technical scheme, the bottom plate is provided with a sliding groove, the end part of the horizontal sliding plate is provided with a protrusion, the protrusion penetrates through the sliding groove, and the horizontal sliding plate is in sliding connection with the bottom plate by means of the protrusion and the sliding groove.

As a further technical scheme, the baffle has a straight line portion and two arc portions, the two arc portions are symmetrically arranged at two ends of the straight line portion, the two baffles are symmetrically arranged, and the two baffles can be relatively close to or far away from each other.

As a further technical solution, the apparatus further includes an adjustment member, the adjustment member including:

the support plate is arranged on the support table, and the support rod is provided with a threaded hole;

and the ejector rod penetrates through the threaded hole, the ejector end of the ejector rod is in contact with the baffle, and the ejector rod is used for enabling the two baffles to be close to each other.

As a further technical scheme, the waste material collecting box is further included and is arranged in the notch and used for collecting the sheared waste materials.

The working principle and the beneficial effects of the invention are as follows: compared with the prior art, the feeding mechanism is used for placing the pipe materials to be cut into the clamping mechanism and the corner cutting mechanism for corner punching, the discharging mechanism is used for moving the pipe materials with the corner punching completed, the clamping mechanism is used for clamping the pipe materials to facilitate the corner punching, the corner cutting mechanism is used for punching the pipe materials into corners, the corner cutting machine is provided with a punching head, a supporting table and a flushing plate, the clamping mechanism comprises a transmission belt, a bearing table, clamping pieces, a baffle plate and a pressing plate, the transmission belt is arranged in the gap and can do discontinuous motion, the bearing table is arranged on the transmission belt at a plurality of intervals, the bearing table is used for supporting the materials, the clamping pieces are arranged on the transmission belt and are positioned at two sides of the bearing table, the two groups of clamping pieces are symmetrically arranged and can be close to and far away from each other, the top of the clamping pieces is provided with die heads which can lift along the vertical direction, and the die heads are also symmetrically arranged, the die head is provided with a 45-degree groove, the die head is relatively far away or close to the die head by virtue of the clamping pieces, the baffle is arranged on the support table, the two groups of clamping pieces are fixed on the conveying belt and can run along the conveying belt, the baffle can force the clamping pieces to be close to or away from each other, the press plate is arranged on the support table and can lift along the vertical direction, the press plate is used for pressing the pipe on the support table, and when the die head is in contact with the press plate in the moving process, the die head pushes the press plate to enable the press plate to be avoided, so that the die head passes through; because the conveying belts move at intervals, each group of die heads can stop at a designated position to enable the stamping heads to stamp angles, the leveling plates can descend along with the stamping heads in the descending process of the stamping heads, the leveling plates are in contact with the die heads to enable the die heads to have a fixed position in the vertical direction, and the distance between the two die heads is adjustable, so that the door frame corner cutting machine can stamp pipes of different specifications at an angle of 45 degrees.

Drawings

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

FIG. 1 is a schematic structural diagram of a high-efficiency and stable door frame corner cutting machine for processing a security door, provided by the invention;

FIG. 2 is an isometric view of the engagement of the clamping mechanism and the chamfering mechanism of the present invention;

FIG. 3 is a right side view of FIG. 2;

FIG. 4 is an isometric illustration of FIG. 2 with the leveling plate, adjustment member and pressure plate hidden;

FIG. 5 is a right side view of FIG. 4;

FIG. 6 is an isometric illustration of FIG. 4 with the clamp, carrier and conveyor hidden;

FIG. 7 is a schematic view of the structure of the mating part of the holder, the conveyor belt, the die head and the carrier table in the present invention;

FIG. 8 is a schematic view of the structure of the clamping member of the present invention;

FIG. 9 is an exploded view of FIG. 8;

FIG. 10 is a schematic view of the construction of the baffle of the present invention;

in the figure:

1. supporting table, 2, transmission band, 3, plummer, 4, holder, 5, die head, 6, baffle, 7, clamp plate, 8, concave type board, 9, first spring, 10, base, 11, horizontal slide, 12, second spring, 13, vertical slide, 14, third spring, 15, arch, 16, extension board, 17, ejector pin, 18, collecting box, 19, feed mechanism, 20, discharge mechanism, 21, punching press head, 22, first inclined plane, 23, flush plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any inventive step, are intended to be within the scope of the present invention.

As shown in fig. 1-2, this embodiment provides a high-efficient stable door frame cornering machine for processing of burglary-resisting door, including feed mechanism 19, corner cut mechanism, fixture and discharge mechanism 20, feed mechanism 19 is used for sending into fixture with waiting to cut the material on, fixture is used for the centre gripping and pushes away waiting to cut the material, corner cut mechanism is used for cutting 45 contained angles on waiting to cut the material, discharge mechanism 20 is used for transporting the material that cuts, corner cut mechanism has the punching press head 21 that can follow vertical direction and horizontal square motion respectively, corner cut mechanism still has brace table 1 and flush plate 23, flush plate 23 locates on punching press head 21, brace table 1 has seted up the opening, fixture includes:

the conveying belt 2 is arranged in the notch and can do circular discontinuous motion;

the bearing tables 3 are arranged on the conveying belt 2 at intervals, and the bearing tables 3 are used for contacting with materials;

the two groups of clamping pieces 4 are respectively arranged on two sides of the bearing table 3, the two groups of clamping pieces 4 are symmetrically arranged, the clamping pieces 4 are provided with die heads 5 capable of moving along the vertical direction, the die heads 5 are provided with 45-degree shaped grooves, and the two opposite die heads 5 can be close to or far away from each other;

a baffle 6 provided on the support table 1 and used for making the two opposing die heads 5 approach each other; and

the pressing plate 7 is arranged on the supporting table 1 and can move in the vertical direction, and the pressing plate 7 is used for pressing the material to be cut on the supporting table 1;

wherein, holder 4 pushes up clamp plate 7 and rises in order to dodge holder 4, and clamp plate 7 contacts with the material when being located between two holder 4 side by side.

In this embodiment, the feeding mechanism 19 is used for placing the tube to be cut into the clamping mechanism and the corner cutting mechanism for corner punching, the discharging mechanism 20 is used for moving the tube with the corner punching completed, the clamping mechanism is used for clamping the tube so as to facilitate corner punching, the corner cutting mechanism is used for corner punching, the corner cutting machine is provided with a punching head 21, a supporting platform 1 and a leveling plate 23, the clamping mechanism comprises a transmission belt 2, a bearing platform 3, clamping pieces 4, a baffle 6 and a pressing plate 7, the transmission belt 2 is arranged in a gap and can perform intermittent motion, the bearing platform 3 is provided with a plurality of transmission belts 2 with the same interval, the bearing platform 3 is used for supporting the material, the clamping pieces 4 are arranged on the transmission belts 2 and located at two sides of the bearing platform 3, the two groups of clamping pieces 4 are symmetrically arranged and can be close to and far away from each other, the top of the clamping pieces 4 is provided with a die head 5 capable of lifting along the vertical direction, the die heads 5 are also symmetrically arranged, the die heads 5 are provided with 45-degree type grooves, the die heads 5 are relatively far away or close to each other by virtue of the clamping pieces 4, the baffle 6 is arranged on the support table 1, the two groups of clamping pieces 4 are fixed on the transmission belt 2 and can run along the transmission belt 2, the baffle 6 can force the clamping pieces 4 to be close to or away from each other, the pressing plate 7 is arranged on the support table 1 and can lift along the vertical direction, the pressing plate 7 is used for pressing the pipe on the support table 1, and when the die heads 5 are in contact with the pressing plate 7 in the movement process, the die heads 5 push the pressing plate 7 to enable the pressing plate 7 to be avoided, so that the die heads 5 pass through; because the conveying belts 2 move at intervals, each group of die heads 5 stops at a designated position to enable the stamping heads 21 to perform stamping and angulation, the leveling plates 23 descend along with the stamping heads 21 in the descending process of the stamping heads 21, the leveling plates 23 are in contact with the die heads 5 to enable the die heads 5 to have a fixed position in the vertical direction, and the distance between the two die heads 5 is adjustable, so that the door frame cornering machine can perform 45-degree stamping forming on pipes of different specifications.

The working principle of the invention is as follows: the feeding mechanism 19 transfers the pipe to be processed to the clamping mechanism, the clamping mechanism clamps the pipe firstly, then the corner cutting mechanism presses the pipe to form an angle, after the processing is completed, the clamping mechanism releases the pipe and then transfers the pipe to the discharging mechanism 20, and the discharging mechanism 20 sends the processed pipe out. Due to the arrangement of the baffle 6, the pipe is well clamped by the clamping piece 4 before the angle of attack, and the pipe is released after the angle of attack is completed and transported for a certain distance, so that the automatic angle of attack of the pipe can be realized as long as the speed ratio of the punching head 21 and the transmission belt 2 is set.

As shown in fig. 3 to 4, further, this embodiment also proposes that the die head 5 has a first inclined surface 22, the surface of the press plate 7 contacting with the material has a first rounded corner, and the first inclined surface 22 contacts with the first rounded corner to realize that the die head 5 pushes the press plate 7 to ascend.

In this embodiment, in order to enable the pressing plate 7 to stably avoid the die head 5, the first inclined plane 22 is disposed on the die head 5, the pressing plate 7 is provided with a first fillet, the lowest point of the first inclined plane 22 is lower than the lowest point of the pressing plate 7, and when the die head 5 contacts the pressing plate 7, the first fillet contacts the first inclined plane 22 first, so that the die head 5 can easily push the pressing plate 7.

As shown in fig. 3 to 4, further, the present embodiment further proposes that the clamping mechanism further includes:

the concave plate 8 is arranged on the support table 1 and provided with supporting legs, the supporting legs are in contact with the support table 1, and two ends of the pressing plate 7 are respectively in sliding connection with the two supporting legs;

one end of the first spring 9 is connected with the pressing plate 7, the other end of the first spring is connected with the middle part of the concave plate 8, and the axis of the first spring 9 is along the vertical direction.

In this embodiment, in order to realize the passive lift of clamp plate 7 in vertical direction, concave plate 8 and first spring 9 have still been set up among the fixture, concave plate 8 sets up on brace table 1, the both ends of concave plate 8 are the landing leg, the landing leg is fixed to be set up on brace table 1, the both ends and the landing leg sliding connection of clamp plate 7, first spring 9 sets up the middle part at clamp plate 7 and concave plate 8, clamp plate 7 neither can break away from concave plate 8 like this, also can adjust in order to realize compressing tightly tubular product and dodging die head 5 on vertical position.

In this embodiment, a plurality of first springs 9 may be provided, and the plurality of first springs 9 may be uniformly provided between the pressing plate 7 and the concave plate 8, so that the restoring forces received by the pressing plate 7 are equalized.

As shown in fig. 3 to 4, further, the present embodiment proposes that the holder 4 further includes:

the base 10 is provided with a side plate and a bottom plate, the side plate is arranged on the bottom plate, and the bottom plate is arranged on the conveying belt 2;

the horizontal sliding plate 11 is arranged on the bottom plate in a sliding mode, the sliding direction of the horizontal sliding plate is perpendicular to the moving direction of the conveying belt 2 on the same plane, and the horizontal sliding plate 11 is provided with a storage groove;

one end of the second spring 12 is connected with the horizontal sliding plate 11, and the other end is connected with the side plate;

the vertical sliding plate 13 is arranged in the object placing groove in a sliding mode along the vertical direction and is connected with the die head 5;

and the third spring 14 is arranged in the storage groove, one end of the third spring is connected with the bottom wall of the storage groove, and the other end of the third spring is connected with the vertical sliding plate 13.

In this embodiment, the holder 4 further includes a base 10, a horizontal sliding plate 11, a second spring 12, a vertical sliding plate 13 and a third spring 14, the base 10 includes a side plate and a bottom plate, the side plate is disposed on the bottom plate, the bottom plate is disposed on the conveyor belt 2, the horizontal sliding plate 11 is slidably disposed on the bottom plate, the second spring 12 is disposed between the bottom plate and the horizontal sliding plate 11, the second spring 12 cooperates with the pressing plate 7 to move the horizontal sliding plate 11 on the bottom plate, the horizontal sliding plate 11 is provided with a storage slot, the vertical sliding plate 13 is slidably disposed in the storage slot along a vertical direction, the third spring 14 is disposed in the storage slot, two ends of the third spring 14 are respectively connected to the bottom wall of the storage slot and the vertical sliding plate 13, so that the vertical sliding plate 13 can be prevented from coming off from the storage slot, and the die head 5 is disposed on the storage slot; the movement of the horizontal slides 11 on the base plate enables the two sets of dies 5 to move towards and away from each other, and the movement of the vertical slides 13 on the horizontal slides 11 enables the dies 5 to move in the vertical direction.

As shown in fig. 3 to 4, further, in this embodiment, a sliding groove is formed in the bottom plate, a protrusion 15 is disposed at an end of the horizontal sliding plate 11, the protrusion 15 is inserted into the sliding groove, and the horizontal sliding plate 11 is slidably connected to the bottom plate by the protrusion 15 and the sliding groove.

In this embodiment, in order to ensure that the horizontal sliding of the horizontal sliding plate 11 on the bottom plate is guiding, a sliding groove may be formed on the bottom plate, a protrusion 15 is disposed at an end of the horizontal sliding plate 11 contacting the bottom plate, the protrusion 15 is inserted into the sliding groove, and the horizontal sliding plate 11 realizes guiding sliding on the bottom plate by means of the protrusion 15 and the sliding groove.

As shown in fig. 3 to 4, further, in the present embodiment, the baffle 6 has two straight portions and two arc portions, the two arc portions are symmetrically disposed at two ends of the straight portion, the two baffles 6 are symmetrically disposed, and the two baffles 6 can be relatively close to or far from each other.

In this embodiment, baffle 6 has straight line portion and arc portion, and the arc portion is two and the symmetry sets up the both ends in straight line portion, and baffle 6 is two and the symmetry sets up on a supporting bench 1, and the distance between two baffles 6 can be adjusted relatively, because the interval between two baffles 6 is adjustable, consequently can realize that two holders 4 relative distance is adjustable, and then can the centre gripping tubular product of different specifications.

As shown in fig. 3 to 4, further, the present embodiment further proposes to further include an adjusting member, where the adjusting member includes:

the support plate 16 is arranged on the support table 1, and the support rod is provided with a threaded hole;

and the ejector rod 17 penetrates through the threaded hole, the ejector end of the ejector rod is in contact with the baffle 6, and the ejector rod 17 is used for enabling the two baffles 6 to be close to each other.

In this embodiment, the adjusting part includes extension board 16 and ejector pin 17, extension board 16 sets up on a supporting bench 1 and set up threaded hole, ejector pin 17 wears to establish in the threaded hole, ejector pin 17 and extension board 16 threaded connection, ejector pin 17's ejector end and baffle 6 rotate to be connected, ejector pin 17's ejector end and baffle 6 can be dismantled and be connected, ejector pin 17 makes baffle 6 remove on a supporting bench 1, the adjusting part is two and sets up with two baffle 6 one-to-one, in order to guarantee that the focus of tubular product is on the focus of plummer 3 all the time, need adjust two ejector pin 17 simultaneously.

In this embodiment, in order to ensure that the baffle 6 moves guided on the support table 1, a guide groove may be provided in the support table 1, and a part of the baffle 6 may slide in the guide groove.

As shown in fig. 3 to 4, further, the present embodiment further proposes to further include a material collecting box 18, where the material collecting box 18 is disposed in the opening and is used for collecting the sheared waste material.

In this embodiment, in order to collect the waste material of the pipe, the material collecting box 18 may be provided at the notch of the support table 1, and the waste material coming from the corner may drop into the material collecting box 18.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.