CN209773176U - Metal rectangular pipe blanking machine stable in operation - Google Patents

Abstract

The utility model discloses a metal rectangular tube blanking machine with stable operation, which comprises a female die and a blanking knife, wherein the female die is provided with a first supporting surface and a second supporting surface which are perpendicular to each other, the first supporting surface is connected with the second supporting surface and is used for abutting two adjacent side surfaces of the metal rectangular tube, and the female die is also provided with a groove for the insertion of the blanking knife and the discharge of blanking and material breakage; the punching knife is obliquely arranged relative to the first supporting surface, and the front end of the punching knife is provided with a first cutting edge and a second cutting edge which are intersected with each other and form an outwardly convex cutting edge point; the punching cutter is connected with the driving mechanism so as to move towards the workpiece; the punching machine further comprises a locking mechanism, and the locking mechanism is used for locking the punching knife to enable the punching knife to feed in a preset direction. The method has the advantages of high stability, good safety and high processing efficiency.

Description

Metal rectangular pipe blanking machine stable in operation

Technical Field

The utility model relates to a metal processing field especially relates to the stable metal rectangular tube clicker of operation.

Background

In the metal processing field, need cut tubular product many times, in fields such as building, auto-parts, often need use the metal rectangular pipe, the rectangular pipe product that rectangular pipe manufacture factory leaves the factory is all longer, however in practical application, probably needs the length of different specifications, and traditional cutting method is cut through the saw, and its efficiency is lower. The punching efficiency is much higher than that of sawing, but in practice, because the rectangular tube is of a hollow structure, if the punching process is adopted for segmenting, the technical problem that the product is easy to deform must be solved. How to design a blanking structure with high efficiency is a technical problem to be solved urgently for the field.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a metal rectangular tube clicker that operates stably solves the low technical problem of production machining efficiency among the prior art, can realize processing the rectangular tube of different specifications on one set of equipment.

In order to realize the utility model discloses an aim, the technical scheme who adopts is:

The metal rectangular pipe blanking machine stable in operation comprises a female die and a blanking knife, wherein the female die is provided with a first supporting surface and a second supporting surface which are perpendicular to each other, the first supporting surface and the second supporting surface are connected and used for abutting against two adjacent side surfaces of a metal rectangular pipe, and the female die is also provided with a groove for the insertion of the blanking knife and the discharge of blanking broken materials; the punching knife is obliquely arranged relative to the first supporting surface, and the front end of the punching knife is provided with a first cutting edge and a second cutting edge which are intersected with each other and form an outwardly convex cutting edge point; the punching cutter is connected with the driving mechanism so as to move towards the workpiece; the punching machine further comprises a locking mechanism, and the locking mechanism is used for locking the punching knife to enable the punching knife to feed in a preset direction.

Preferably, the cutting device further comprises a feed direction adjusting mechanism for driving the punching cutter to move so that the cutting edge can be aligned to the edge angle direction corresponding to the cross section of different workpieces; the feed direction adjusting mechanism is characterized by further comprising a wedging locking mechanism, wherein the wedging locking mechanism comprises an active wedge block driven by a second driving mechanism and a passive wedge block fixedly arranged on the feed direction adjusting mechanism, and the feed direction adjusting mechanism is pushed tightly through the matching of inclined planes arranged on the active wedge block and the passive wedge block in the process that the active wedge block moves towards the direction close to the passive wedge block.

Preferably, the cylinder body of the power cylinder is fixedly connected with an adjusting seat, the adjusting nut is fixedly installed on the adjusting seat, and the driven wedge block is fixedly installed on the adjusting seat and is fixedly connected with the cylinder body of the power cylinder.

Preferably, the adjusting seat is provided with two passive wedges symmetrically distributed on two sides of the cylinder body of the power cylinder, and the number of the active wedges is two.

Preferably, the second driving mechanism comprises a wedging cylinder or a wedging oil cylinder, and a piston rod of the wedging cylinder or the wedging oil cylinder is connected with the driven wedge block to drive the driven wedge block to move.

Preferably, the included angle between the first cutting edge and the second cutting edge is 120 degrees +/-10 degrees, and the included angle between the feeding direction of the punching knife and the first supporting surface is 45 degrees +/-10 degrees.

Preferably, the die further comprises a frame, the die and the motor are mounted on the frame, and an output shaft of the motor is connected with the screw rod through a coupler.

Preferably, the hydraulic clamping device further comprises a rack, the wedging air cylinder or the wedging oil cylinder is mounted on the rack, an adjusting slide rail is arranged on the rack, and when the adjusting nut moves, the adjusting seat drives the power cylinder to slide along the adjusting slide rail; and a wedging sliding groove or a wedging sliding rail for guiding the driving wedge block is also arranged on the machine frame.

Preferably, the blanking knife is detachably mounted on the blanking knife holder, and the blanking knife holder is fixedly connected with the piston rod of the power cylinder.

Preferably, the length of the first supporting surface along the horizontal direction is greater than the height of the second supporting surface along the vertical direction, so that the support device is suitable for rectangular pipes of different specifications; and an arc chamfer is arranged at the intersection of the first supporting surface and the second supporting surface.

The utility model discloses a technical scheme's technological effect is: the metal rectangular pipe blanking machine capable of running stably comprises a female die and a blanking cutter, wherein the female die is provided with a first supporting surface and a second supporting surface which are perpendicular to each other, the first supporting surface and the second supporting surface are connected and used for abutting two adjacent side surfaces of a metal rectangular pipe, and the female die is further provided with a groove for the insertion of the blanking cutter and the discharge of blanking broken materials; the punching knife is obliquely arranged relative to the first supporting surface, and the front end of the punching knife is provided with a first cutting edge and a second cutting edge which are intersected with each other and form an outwardly convex cutting edge point; the punching cutter is connected with the driving mechanism so as to move towards the workpiece; the punching machine further comprises a locking mechanism, and the locking mechanism is used for locking the punching knife to enable the punching knife to feed in a preset direction. When the metal rectangular pipe is placed on the female die, two adjacent side faces of the metal rectangular pipe are respectively abutted to the first supporting face and the second supporting face to form stable support, and the blanking force and the supporting force are opposite in direction in the contact process of the two side faces of the metal rectangular pipe and the blanking knife, so that a fracture formed by blanking on the two side faces can be guaranteed not to deform; the two unsupported side faces of the metal pipe are in contact with the blanking knife, the blanking knife is obliquely arranged, and a certain included angle is formed between the first cutting edge and the second cutting edge of the blanking knife, so that only a very small part of cutting force applied to the workpiece by the cutting edges is perpendicular to the side faces of the metal rectangular pipe in the process of contacting and blanking the surfaces of the workpiece corresponding to the first cutting edge and the second cutting edge, the pipe wall of the metal rectangular pipe cannot be subjected to plastic deformation due to the part of cutting force, most of the cutting force is along the direction of the pipe wall of the metal rectangular pipe, and therefore, a fracture formed after the whole metal rectangular pipe is cut is flat and smooth, and the blanking effect is good. Moreover, through setting up wedging locking mechanical system, avoid causing feed direction guiding mechanism's unstability because of the vibration that the blanking produced, can effectively prevent that the blanking sword from producing the skew in the course of working and causing the problem that the defective rate is high.

Drawings

The invention will be further described with reference to the accompanying drawings.

Fig. 1 is one of the schematic diagrams of the blanking principle of embodiment 1 of the present invention.

Fig. 2 is a second schematic view of the blanking principle of embodiment 1 of the present invention.

Fig. 3 is a third schematic view of the blanking principle of embodiment 1 of the present invention.

Fig. 4 is a schematic perspective view of a blanking principle according to embodiment 1 of the present invention.

Fig. 5 is a schematic view of the square rectangular tube blanking device according to embodiment 1 of the present invention.

Fig. 6 is a schematic view of the rectangular tube blanking device according to embodiment 1 of the present invention.

3 fig. 3 7 3 is 3 a 3 schematic 3 sectional 3 view 3 taken 3 along 3 the 3 direction 3 a 3- 3 a 3 in 3 fig. 3 5 3. 3

Fig. 8 is a schematic view of the feed direction of the present invention when blanking square rectangular pipes and rectangular pipes.

Fig. 9 is a schematic view of the assembly structure of the present invention.

Fig. 10 is a perspective view of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

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

Referring to fig. 1-10, a metal rectangular tube blanking machine with stable operation is shown, which is used for being installed on a blanking machine and used for blanking, cutting and segmenting metal rectangular tubes, the rectangular tubes are also called square tubes, the cross sections of the rectangular tubes are square or rectangular hollow structures, and the commercially available rectangular tubes have standard specifications and can be selected according to actual requirements. Generally, the rectangular tube is made of a metal material, such as cast iron, stainless steel, an alloy material, and the like, and the rectangular tube has a wide application range and generally needs to be cut in order to meet the use requirements.

In this embodiment, a female die 1 and a blanking knife 2 are arranged on the metal rectangular tube segmental blanking machine, the female die 1 is provided with a first supporting surface 102 along the horizontal direction and a second supporting surface 101 along the vertical direction, the first supporting surface 102 is connected with the second supporting surface 101 and is used for abutting against two adjacent side surfaces 302 and 301 of the metal rectangular tube 3, and the female die 1 is further provided with a groove 103 for the insertion of the blanking knife 2 and for discharging blanking scraps; the punching knife 2 is obliquely arranged relative to the first supporting surface 102, and the front end of the punching knife 2 is provided with a first cutting edge 201 and a second cutting edge 202 which are intersected and form an outwardly convex cutting edge 203. In blanking die, the die is generally fixed, and terrace die or drift are movable the utility model discloses in, the part that is blanked is the waste material, and the part that leaves is the product. In order to save material, excessive waste should be prevented, and the use of thinner cutting blades does not require a more powerful drive. Therefore, in the present embodiment, the thickness of the punching blade is about 10 mm.

Of course, in the present invention, as long as the first supporting surface 102 and the second supporting surface 101 are ensured to be perpendicular, they may be arranged in other directions, and it is not necessary to ensure the horizontal direction and the vertical direction. In order to tightly push the workpiece, a pushing pressure cylinder 4A for pushing is further shown in this embodiment, the workpiece is pushed or released by stretching and contracting a piston rod of the pushing pressure cylinder 4A, specifically, a pushing head 4A-1 is arranged at the front end of the pushing pressure cylinder 4A, when the pushing pressure cylinder 4A is in operation, the pushing head 4A-1 pushes against the workpiece, and the pushing pressure is applied by the pushing pressure cylinder 4A, of course, the pushing pressure can be pushed in other manners, such as by thread fit, or by a lever principle. For intelligent control, a pressure cylinder is preferably used. In order to better control the feeding direction of the punching knife, a punching knife guiding device 7A is arranged above the female die 1 and comprises a sliding guiding groove 7A-1 for clamping the punching knife.

The utility model discloses in, first holding surface 102 and second holding surface 101 can the integrated design, and die 1 structure as an organic whole promptly, but the technology of processing groove under this kind of condition is comparatively complicated, and for convenient processing, first holding surface 102 and second holding surface 101 can also be the components of a whole that can function independently design, can set up the trench like this on two detached parts, and the die that forms an organic whole is fixed with two parts again, and it can to guarantee that groove position matches. In this embodiment, a split design is preferred.

The utility model discloses in, in order to realize the blanking better, the notch position of groove 103 is provided with the die sword on die 1, specifically, be equipped with first die sword 6A on the first holding surface 102, be provided with second die sword 5A on the second holding surface, first die sword 6A is installed on die 1 with the form of panel with second die sword 5A, both all use in pairs, specifically, can connect and fix through the bolt, also be convenient for change.

further, the blanking blade 2 has a straight section 204 connected to the cutting tip 203, the straight section 204 being in the shape of a straight line, the notch of the groove 103 intersecting the first support surface 102 and the second support surface 101 being a straight notch cooperating with the straight section.

Further, the included angle between the first cutting edge 201 and the second cutting edge 202 is 120 ° ± 10 °, in the present invention, the preferred angle is 120 °.

Further, the included angle range between the blanking blade 2 and the first supporting surface 102 is 45 ° ± 10 °, in the present invention, the preferred angle is 45 °.

Further, the width of the flat mouth is slightly larger than the thickness of the flat section 204 of the punch 2 in the mounting direction of the workpiece 3.

Further, the length of the first supporting surface 102 in the horizontal direction is greater than the height of the second supporting surface 101 in the vertical direction, so that more slots can be reserved in the first supporting surface 102 to adapt to rectangular pipes of different specifications, for example, when the rectangular pipes are rectangular pipes, only the longer side edge needs to be in contact with the first supporting surface 102, and the shorter side edge needs to be in contact with the second supporting surface 101.

Further, the intersection of the first supporting surface 102 and the second supporting surface 101 is provided with a circular arc chamfer.

Further, the rear end of the cutting blade 2 is connected to a power unit, for example, by a cylinder drive.

The utility model discloses in, knife tip 203 of blanking sword 2 is in the in-process of advancing, the very first time and the exposed apex angle contact of rectangular pipe.

In the utility model, when the metal rectangular tube 3 is placed on the die 1, two adjacent side faces 302 and 301 of the metal rectangular tube are respectively abutted against the first supporting face 102 and the second supporting face 101 to form stable support in the horizontal direction and the vertical direction, and the direction of the blanking force is opposite to that of the supporting force in the process of contacting the two side faces of the metal rectangular tube 3 with the blanking knife 2, so that the fracture formed by blanking on the two side faces can be ensured not to deform; in the process of contacting the two unsupported side surfaces of the metal tube 3 with the blanking knife, because the blanking knife is obliquely arranged, and a certain included angle is formed between the first cutting edge 201 and the second cutting edge 202 of the blanking knife 2, as shown in fig. 2, in the process of contacting and blanking the surfaces of the corresponding workpieces by the first cutting edge 201 and the second cutting edge 202, only a very small part of cutting force applied to the workpieces by the cutting edges is perpendicular to the side surfaces of the metal rectangular tube, and the part of force can not cause plastic deformation of the tube wall of the metal rectangular tube, and most of the cutting force is along the tube wall direction of the metal rectangular tube, so that fractures formed after the whole metal rectangular tube is cut are flat and smooth, the blanking effect is good, and the production efficiency is high.

In this embodiment, the rectangular tube is a square tube, and the same applies when a rectangular tube is used. In order to adapt to rectangular pipes with different specifications, the mounting structure of the punching knife needs to be reasonably designed, on one hand, the feeding and retracting of the cutting knife needs to be realized, and on the other hand, the adjustment of the feeding direction needs to be realized so as to match the rectangular pipes with different heights. Referring to fig. 5 to 8, the punching blade 2 is connected to a driving mechanism so as to be movable toward the workpiece 3; the cutting device also comprises a feeding direction adjusting mechanism which is used for driving the punching knife 2 to move in a translation mode, and the direction in which the feeding direction adjusting mechanism drives the punching knife 2 to move in a translation mode is approximately perpendicular to the direction in which the driving mechanism drives the punching knife 2 to feed or withdraw.

Further, the driving mechanism includes a power cylinder 150, and the feed direction adjusting mechanism includes a motor 50; the punching knife 2 is rigidly connected with a piston rod 160 of the power cylinder 150, an output shaft 501 of the motor 50 is connected with a screw rod 10 which can synchronously rotate with the motor, an adjusting nut 80 is arranged on the screw rod 10, and the adjusting nut 80 is fixedly connected with a cylinder body of the power cylinder 150.

Further, the die comprises a frame 20, the die 1 and the motor 50 are mounted on the frame 20, and an output shaft 501 of the motor 50 is connected with the screw rod 10 through a coupling 40.

Further, an adjusting seat 70 is fixedly connected to the cylinder body of the power cylinder 150, and the adjusting nut 80 is fixedly mounted on the adjusting seat 70.

Further, an adjusting slide rail 60 is disposed on the frame 20, and when the adjusting nut 80 moves, the adjusting seat 70 drives the power cylinder 150 to slide along the adjusting slide rail 60.

In the present invention, the power cylinder 150 is a cylinder or a hydraulic cylinder, and the motor 50 is a servo motor or a stepping motor.

Further, the blanking blade 2 is detachably mounted on the blanking blade holder 120, and the blanking blade holder 120 is fixedly connected with the piston rod of the power cylinder 150. Specifically, a die cutter mounting plate 130 is fixedly mounted on the die cutter holder 120 through a bolt, the die cutter mounting plate 130 can be detached through the bolt, the die cutter 2 is tightly clamped and mounted between the die cutter mounting plate 130 and the die cutter holder 120, and when the die cutter 2 needs to be replaced, the bolt is only required to be detached. For supporting and guiding, a punch holder slide rail 140 is further provided, and the punch holder 120 is installed in cooperation with the punch holder slide rail 140.

In addition, because the utility model discloses set up feed direction guiding mechanism, consequently can process to the rectangular tube of different specifications, as shown in fig. 8, when the direction of feed of punching cutter was followed the direction feed that S1 instructed, can blanking specification be 60mm x 60mm 'S rectangular tube, when the direction of feed of punching cutter was followed the direction feed that S2 instructed, can blanking specification be 60mm x 30 mm' S rectangular tube. Of course, the size of the grooves 103 on the first supporting surface 102 and the second supporting surface 101 can be adjusted according to actual needs, so that more specifications of rectangular tubes can be adapted. Therefore, the equipment adaptability is good, and the efficiency of the exchange work is high.

In order to prevent the relative movement between the adjusting nut 80 and the lead screw 10 caused by vibration during the blanking process, the adjusting nut 80 drives the power cylinder 150 to move, so that the processing quality is unstable due to the wrong feeding direction. Therefore, the utility model discloses further show a wedging locking mechanism for locking feed direction guiding mechanism, refer to fig. 9 and show, this wedging locking mechanism includes the initiative voussoir 200 by second actuating mechanism driven to and set firmly passive voussoir 300 on feed direction guiding mechanism, move the in-process towards the direction that is close to passive voussoir 300 at initiative voussoir 200, thereby cooperate with feed direction guiding mechanism top tightly through the inclined plane that sets up on initiative voussoir 200 and the passive voussoir 300.

Specifically, the cylinder body of the power cylinder 150 is fixedly connected with the adjusting seat 70, the adjusting nut 80 is fixedly installed on the adjusting seat 70, and the passive wedge 300 is fixedly installed on the adjusting seat 70 so as to be fixedly connected with the cylinder body of the power cylinder 150, but of course, the passive wedge 300 may also be directly fixedly connected with the cylinder body of the power cylinder 150, but in this case, the structure of the cylinder body needs to be reasonably designed so as to have enough installation positions. Since the power cylinder is generally a standard component, the adjustment seat is more reasonable.

In order to ensure the stability, the adjusting seat 70 is provided with two passive wedges 300 symmetrically distributed on two sides of the cylinder body of the power cylinder 150, and the two active wedges 200 are respectively arranged on the frame 20, and the distance between the two active wedges 200 is fixed along the direction perpendicular to the blanking feed direction; when rectangular pipes of different specifications are punched, the distance between the two driving wedges 200 is different along the feeding and retracting direction of the punch, because the position of the punch 2 needs to be adjusted by the feeding direction adjusting mechanism when rectangular pipes of different specifications are punched, and the position of the power cylinder 150 relative to the frame 20 changes, so that the inclined surfaces of the driving wedges 200 and the driven wedges 300 have a sufficient length.

The utility model discloses in, second actuating mechanism includes wedging cylinder or wedging hydro-cylinder, preferably adopts the hydro-cylinder, connects passive voussoir 200 in order to drive its removal through the piston rod of wedging hydro-cylinder 100.

The wedging oil cylinder 200 is installed on the frame 20, and the frame 20 is further provided with a wedging sliding groove 400 for guiding the driving wedge 200, and of course, the wedging sliding groove 400 may be replaced by a wedging sliding rail.

The working principle of the utility model is that, the piston rod 160 of the power cylinder 150 drives the punch 2 to feed or retract, thereby the motor 50 drives the power cylinder 150 through the lead screw 10 and the adjusting nut 10 and the punch 2 to move to adjust the feed direction, thereby the wedging oil cylinder 100 extrudes the passive wedge block 300 through the driving active wedge block 200 to tightly push the adjusting seat 70. Before punching, the punching knife 2 is driven to a position close to the workpiece 3 by the piston rod 160 of the power cylinder 150, the electric motor 50 adjusts the punching knife 2 to align the blade edge 203 thereof with the round angle of the workpiece 3, and the adjusting seat 70 is further locked by the wedging oil cylinder 100, so that the punching operation can be started. The inclined plane cooperation between the driving wedge block 200 and the driven wedge block 300 has good self-locking performance, greatly improves the stability of equipment, and prevents potential safety hazards in the system pressure reduction or power-off period.

The utility model discloses in, for control motor, power cylinder and wedging hydro-cylinder, still include the control module unit not shown in the figure, the control module unit can be singlechip, PLC or other computer control system, however, this part is as prior art, does not detailed here again.

In the description herein, references to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, and it is not to be understood that the specific embodiments of the present invention are limited to these descriptions. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement.

Claims (10)

1. Move stable metal rectangular pipe clicker, its characterized in that: the blanking device comprises a female die and a blanking knife, wherein the female die is provided with a first supporting surface and a second supporting surface which are vertical to each other, the first supporting surface and the second supporting surface are connected and used for abutting against two adjacent side surfaces of a metal rectangular pipe, and the female die is also provided with a groove for the insertion of the blanking knife and the discharge of blanking broken materials; the punching knife is obliquely arranged relative to the first supporting surface, and the front end of the punching knife is provided with a first cutting edge and a second cutting edge which are intersected with each other and form an outwardly convex cutting edge point; the punching cutter is connected with the driving mechanism so as to move towards the workpiece; the punching machine further comprises a locking mechanism, and the locking mechanism is used for locking the punching knife to enable the punching knife to feed in a preset direction.

2. The metal rectangular tube blanking machine stable in operation according to claim 1, characterized in that: the cutting device also comprises a feed direction adjusting mechanism which is used for driving the punching cutter to move so that the cutting edge can be aligned to the edge angle direction corresponding to the cross sections of different workpieces; the feed direction adjusting mechanism is characterized by further comprising a wedging locking mechanism, wherein the wedging locking mechanism comprises an active wedge block driven by a second driving mechanism and a passive wedge block fixedly arranged on the feed direction adjusting mechanism, and the feed direction adjusting mechanism is pushed tightly through the matching of inclined planes arranged on the active wedge block and the passive wedge block in the process that the active wedge block moves towards the direction close to the passive wedge block.

3. The metal rectangular tube blanking machine stable in operation according to claim 2, characterized in that: the driving mechanism comprises a power cylinder, and the feed direction adjusting mechanism comprises a motor; the punching and cutting knife is rigidly connected with a piston rod of the power cylinder, an output shaft of the motor is connected with a screw rod capable of synchronously rotating with the motor, an adjusting nut is installed on the screw rod, the adjusting nut is fixedly connected with a cylinder body of the power cylinder, and the driven wedge block is fixedly connected with the cylinder body of the power cylinder.

4. A metal rectangular tube blanking machine stable in operation according to claim 3, characterized in that: the adjusting device comprises a power cylinder, a driven wedge block, an adjusting nut, an adjusting seat, a driven wedge block and a driven wedge block, wherein the power cylinder is fixedly connected with the power cylinder body through the adjusting seat, the adjusting nut is fixedly installed on the adjusting seat, and the driven wedge block is fixedly installed on the adjusting seat and is fixedly connected with the power cylinder body.

5. The operationally stable metallic rectangular tube clicker of claim 4, wherein: the adjusting seat is provided with two passive wedge blocks which are symmetrically distributed on two sides of the cylinder body of the power cylinder, and the number of the active wedge blocks is two.

6. A metal rectangular tube blanking machine according to any one of claims 2-5, characterized in that: the second driving mechanism comprises a wedging air cylinder or a wedging oil cylinder, and a piston rod of the wedging air cylinder or the wedging oil cylinder is connected with the driven wedge block to drive the driven wedge block to move.

7. The operationally stable metallic rectangular tube clicker of claim 6, wherein: the included angle range between the first cutting edge and the second cutting edge is 120 degrees +/-10 degrees, and the included angle range between the feeding direction of the punching knife and the first supporting surface is 45 degrees +/-10 degrees.

8. A metal rectangular tube blanking machine according to any one of claims 3-4, characterized in that: the die and the motor are installed on the frame, and an output shaft of the motor is connected with the lead screw through a coupler.

9. The operationally stable metallic rectangular tube clicker of claim 5, wherein: the wedge-caulking cylinder or the wedge-caulking oil cylinder is arranged on the rack, an adjusting slide rail is arranged on the rack, and when the adjusting nut moves, the power cylinder is driven by the adjusting seat to slide along the adjusting slide rail; and a wedging sliding groove or a wedging sliding rail for guiding the driving wedge block is also arranged on the machine frame.

10. A metal rectangular tube blanking machine according to any one of claims 3-5, characterized in that: the punching cutter is detachably arranged on the punching cutter seat, and the punching cutter seat is fixedly connected with a piston rod of the power cylinder.