CN221559519U - Automatic punching machine for square tubes - Google Patents

Abstract

The utility model discloses an automatic square pipe punching machine, which comprises a frame, wherein a feeding device, a supporting and moving device, a material moving device and two clamping and punching devices are arranged on a workbench surface of the frame, the feeding device, the supporting and moving device and the material moving device are sequentially arranged along the Y direction, and the two clamping and punching devices are symmetrically arranged on the left side and the right side of the supporting and moving device along the X direction; the clamping and punching device comprises a square tube positioning mechanism and a punching mechanism arranged on the square tube positioning mechanism, wherein the positioning mechanism is arranged on the workbench surface in a sliding manner along the X direction, and the punching mechanism punches a square tube along the Z direction and the Y direction. This piercing press adopts the duplex position, carries out multiaspect processing to the side pipe both sides simultaneously, and it is more reliable to punch a hole more, and efficiency is higher.

Description

Automatic punching machine for square tubes

Technical Field

The utility model belongs to the technical field of mechanical equipment, and particularly relates to an automatic square pipe punching machine.

Background

The punching is performed on various raw materials such as pipes and steel plates, the traditional punching is performed on a single hole, a common punch press or a bench drill is used for punching one hole and then the pipe is moved to perform the next hole, and the mode of hole-by-hole processing is obvious when the pipe needing double-side punching is processed, so that the processing efficiency is low and the manual operation workload is high.

The Chinese patent with the publication number of CN208772270U discloses a numerical control square pipe punching machine, which comprises a frame, and a square pipe feeding mechanism, a punching mechanism and a square pipe feeding and discharging mechanism which are sequentially arranged on the frame from front to back; the punching mechanism comprises a female die and a male die arranged right above the female die; a first cavity matched with the male die is formed in the center of the female die; the male die is connected with a second driving device for driving the male die to slide up and down, and a material ejection rod which slides up and down is arranged in the male die; the punching device comprises a punch and a square tube clamping mechanism, wherein a lifting spring is arranged between the punch and the lifting rod and drives the lifting rod to slide downwards, the square tube to be punched is conveyed into the square tube clamping mechanism through an unpowered roller conveying device to clamp the square tube, and a first driving device drives the square tube clamping mechanism and the square tube to move backwards in a stepping manner through a sliding plate, so that a plurality of holes with intervals are punched on the square tube by the punching mechanism in sequence. When the numerical control square pipe punching machine is used for processing square pipe type pipes needing double-sided punching, the numerical control square pipe punching machine can also only punch one hole and then process the other hole, so that the problem of low processing efficiency is also solved.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the automatic square pipe punching machine, double-station processing is carried out on two sides of a square pipe simultaneously, punching is faster and more reliable, and efficiency is higher.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the automatic square pipe punching machine comprises a frame, wherein a feeding device, a supporting and moving device, a material moving device and two clamping and punching devices are arranged on a working table surface of the frame, the feeding device, the supporting and moving device and the material moving device are sequentially arranged along the Y direction, and the two clamping and punching devices are symmetrically arranged on the left side and the right side of the supporting and moving device along the X direction; the clamping and punching device comprises a square tube positioning mechanism and a punching mechanism arranged on the positioning mechanism, wherein the square tube positioning mechanism is arranged on the workbench surface in a sliding manner along the X direction, and the punching mechanism punches a square tube along the Z direction and the Y direction.

Further, the feeding device comprises a first bracket which is slidably arranged on the workbench surface along the X direction, a hopper which is arranged on the first bracket, and a vibrating cylinder which is connected with the hopper, wherein the bottom surface of the hopper is inclined, and the lower part of the lowest part of the bottom surface of the hopper is correspondingly supported with the moving device.

Further, the supporting and moving device comprises a pushing mechanism slidably mounted on the workbench surface along the Y direction, and a first station and a second station which are distributed along the Y direction.

Further, the material moving device comprises a Y-direction moving mechanism which is slidably arranged on the workbench surface along the Y direction and two Z-direction clamping mechanisms which are symmetrically arranged on the Y-direction moving mechanism, and the Z-direction clamping mechanisms can clamp square tubes along the Z-direction lifting.

Further, the Y-direction moving mechanism comprises a second bracket, a Y-direction transverse moving cylinder and a second Y-direction guide rail pair, the second bracket arranged on the workbench surface is provided with the Y-direction transverse moving cylinder and the second Y-direction guide rail pair, the Y-direction transverse moving cylinder is connected with a slide block of the second Y-direction guide rail pair, and the Z-direction clamping mechanism is arranged on the slide block of the second Y-direction guide rail pair.

Still further, Z is to pressing from both sides material mechanism and is included second bottom plate, curb plate, Z to lift cylinder, along two finger cylinders of Y orientation distribution, installs the second bottom plate side on Y to moving mechanism and is equipped with the curb plate, installs Z to lift cylinder on the curb plate and be connected with finger cylinder.

Further, the square tube positioning mechanism comprises a second X-direction guide rail pair, an X-direction push-pull air cylinder, a third bottom plate arranged on the second X-direction guide rail pair, two square tube fixing assemblies and two square tube ejection assemblies which are arranged in parallel, wherein the second X-direction guide rail pair, the X-direction push-pull air cylinder and the second X-direction guide rail pair are arranged on the workbench surface, the X-direction push-pull air cylinder is connected with the third bottom plate, the square tube fixing assemblies and the square tube ejection assemblies are respectively arranged on the third bottom plate and the workbench surface, and the punching mechanism is arranged on the third bottom plate.

Further, the square tube fixing assembly comprises a fixing seat and a fixing core rod arranged on the fixing seat; the square tube ejection assembly comprises a base arranged on the working table surface and two ejector rods fixed on the base, wherein the ejector rods are parallel to the fixed core rod, the two ejector rods are distributed on the outer side of the fixed core rod in a diagonal way, and the ejector rods penetrate through the fixed seat; the fixed core rod stretches into the square pipe when being far away from the ejector rod along the X direction, and the ejector rod ejects out of the square pipe when being close to the ejector rod along the X direction.

Furthermore, the square tube fixing assembly further comprises a guide block provided with a limit groove, the fixed seat and the guide block are distributed along the X direction, and the fixed core rod passes through the limit groove; the ejector rod sequentially passes through the fixing seat and the limiting groove.

Further, one of the two fixed core rods is provided with a Y-direction through hole through which the punch of the punching mechanism passes, and the other is provided with a Z-direction through hole through which the punch of the punching mechanism passes.

Still further, punching mechanism includes along horizontal hydraulic cylinder, horizontal drift of Y orientation and along vertical hydraulic cylinder, the vertical drift of Z orientation setting, the telescopic link and the horizontal drift of horizontal hydraulic cylinder are connected, the telescopic link and the vertical drift of vertical hydraulic cylinder are connected.

By adopting the technical scheme of the utility model, the beneficial effects of the utility model are as follows: two symmetrical clamping and punching devices are arranged at two ends of the square tube, so that punching operation can be performed on the left side and the right side of a single square tube simultaneously, and double-station design is realized, so that each clamping and punching device can realize multi-face punching processing of the square tube; the single clamping and punching device can realize punching operation of two sides of the square tube; the feeding device is used for vibrating and conveying the raw material square tubes, and the position of the feeding device on the workbench can be adjusted to adapt to square tubes with different lengths; the support moving device and the material moving device are matched with each other to move the square tube; the fixed core rods of the square tube fixing assemblies accurately position and fix two sides of the two square tubes by arranging parallel fixed core rods and ejector rod matching in each clamping and punching device, so that punching operation is conveniently carried out on the same side of the two square tubes by the punching mechanism; ejecting the perforated square tube by using an ejector rod in the square tube ejection assembly; the whole punching machine is complete in function and high in automation degree.

Drawings

FIG. 1 is a schematic view of an automatic square tube punching machine;

FIG. 2 is a perspective view of an automatic square tube punching machine;

FIG. 3 is a top view of an automatic square tube punching machine;

FIG. 4 is a schematic view of a square tube automatic punching machine dismantling and material moving device;

FIG. 5 is a perspective view of the transfer device;

FIG. 6 is a partial schematic view of a support mobile device;

FIG. 7 is an overall schematic of a clip punching apparatus;

FIG. 8 is a schematic view of the support movement device at an angle after removal from the cradle;

Fig. 9 is another angular schematic view of the support mobile device after it has been moved out of the cradle.

In the figure: the device comprises a frame 1, a workbench surface 11, a blanking opening 12, a blanking baffle 13, a mounting hole 14 and a waste opening 15; 2a feeding device, 21 a first bracket, 22 a hopper, 23 a vibrating cylinder, 24 a baffle plate and 25 a first X-shaped guide rail pair; 3 supporting and moving devices, a 3a pushing mechanism, a 31Y-direction pushing cylinder, a 32 first Y-direction guide rail pair, a 33 first bottom plate, a 34 first station, a 35 second station, a 36 supporting plate, a 37 pushing plate and a 38 gravity overturning block; the device comprises a4 material moving device, a4 aY-direction moving mechanism, a 4b Z material clamping mechanism, a 41 second bracket, a 42Y-direction transverse cylinder, a 43 second Y-direction guide rail pair, a 44 second bottom plate, a 45 side plate, a 46Z-direction lifting cylinder and a 47 finger cylinder; 5 clamping and punching devices, a 5a square tube positioning mechanism, a 51 second X-direction guide rail pair, a 52X-direction push-pull cylinder, a 53 third bottom plate, a 6a square tube fixing assembly, a 61 fixing seat, a 62 fixing core rod, a 63 guide block, a 631 limiting groove, a 64 positioning block, a 7a square tube ejection assembly, a 71 base, 711 oblong holes and 72 ejector rods; the device comprises an 8 punching mechanism, a 81 transverse hydraulic cylinder, a 82 transverse punch, a 83 third Y-shaped guide rail pair, a 84 longitudinal hydraulic cylinder, a 85 longitudinal punch, a 86 bracket, a 861 bar hole, a 862 fixed hole, a 87 channel conversion block and a 88 fixed block; 9 square tubes.

Detailed Description

The specific embodiments of the specific scheme of the utility model are further described with reference to the accompanying drawings, so that the technical scheme is clearer and more obvious.

As shown in fig. 1-9, this embodiment provides an automatic square tube punching machine, which comprises a frame 1, wherein a feeding device 2, a supporting and moving device 3, a material moving device 4 and two clamping and punching devices 5 are arranged on a working table 11 of the frame 1, the feeding device 2, the supporting and moving device 3 and the material moving device 4 are sequentially arranged along the Y direction, square tubes 9 are arranged in the feeding device 2, the supporting and moving device 3 moves a single square tube 9 in the feeding device 2 to a corresponding processing position of the clamping and punching devices 5 along the Y direction, the material moving device 4 is used for moving the square tubes 9, and finally after the clamping and punching devices 5 process and punch holes, the material moving device 4 sends the processed square tubes 9 out of the frame 1; the two clamping and punching devices 5 are symmetrically arranged on the left side and the right side of the supporting and moving device 3 along the X direction, correspond to the left side and the right side of the square tube 9, and simultaneously perform punching operation on the left side and the right side of the square tube. The clamping and punching device 5 in this embodiment includes a square tube positioning mechanism 5a and a punching mechanism 8 disposed on the square tube positioning mechanism 5a, the square tube positioning mechanism 5a is slidably disposed on the table top 11 along the X direction, and the punching mechanism 7 performs punching operation on the square tube along the Z direction and the Y direction.

The feeding device 2 comprises a first bracket 21 which is slidably arranged on the working table 11 along the X direction, a hopper 22 which is arranged on the first bracket 21, and a vibrating cylinder 23 which is connected with the hopper 22, wherein the bottom surface of the hopper 22 is inclined, and the lower part of the lowest part of the bottom surface of the hopper 22 correspondingly supports the moving device 3. The feeding device 2 is bilaterally symmetrical, the left end and the right end of the square tube are correspondingly positioned at two sides of the hopper 22 respectively, the first bracket 21 is provided with a longitudinal baffle 24 corresponding to the front of the bottom surface of the hopper 22, the hopper 22 is vibrated by the vibrating cylinder 23, the square tubes 9 in the hopper 22 slide along the bottom surface under the action of gravity and fall into the position between the hopper 22 and the baffle 24, a plurality of square tubes 9 are longitudinally stacked, a plurality of square tubes 9 are stacked above the square tubes 9 as shown in fig. 2, the first square tube falls on the supporting and moving device 3, and the second square tubes and the square tubes which are longitudinally stacked after sliding are blocked by the baffle 24. The first support 21 is arranged on the workbench surface 11 along the first X-direction guide rail pair 25, and the position of the first support 21 is adjusted, so that the width of the hopper can be adapted to the processing requirements of square pipes with different lengths.

The supporting and moving device 3 comprises a pushing mechanism 3a slidably mounted on the workbench 11 along the Y direction, a first station 34 and a second station 35 distributed along the Y direction, wherein the first station 34 and the second station 35 are positioned on the workbench 11 and are positioned at the front ends of two symmetrical supporting plates 36 along the Y direction. Because of the plurality of vertically stacked square tubes in the feeding device 2, the pushing mechanism 3a pushes the square tube 9 at the bottom to the first station 34, the clamping and punching device 5 performs Z-direction punching, the moving device 4 moves the square tube to the second station 35 to perform Y-direction punching, and then the square tube with the Z-direction and Y-direction punching completed is moved out of the frame 1.

The blanking port 12 is arranged at the rear side of the second station 35 on the frame 1, the length of the blanking port 12 is arranged along the X direction, a blanking baffle 13 is obliquely arranged below the corresponding blanking port 12, and square tubes after punching operation directly move to the blanking port 12 through the material moving device 4 and fall into the rear side of the frame 1 through the blanking baffle 13.

Since the square tubes are positioned between the hopper 22 and the baffle 24, only the first brackets 21 support the left and right ends of the square tubes, and the rear ends of the support plates 36 extend below the hopper 22 to support the middle portions of the vertically stacked square tubes for lifting the supporting force.

The pushing mechanism 3a in the supporting and moving device 3 comprises a Y-direction pushing cylinder 31, a first Y-direction guide rail pair 32, a first bottom plate 33 and two pushing plates 37 arranged on the left side and the right side of the first bottom plate 33, wherein the Y-direction pushing cylinder 31 and the first Y-direction guide rail pair 32 are arranged on the working table 11, the Y-direction pushing cylinder 31 is connected with the first bottom plate 33 arranged on a sliding block of the first Y-direction guide rail pair 32, and the pushing plates 37 push square tubes at the bottom to move forwards to the first station 34, as shown in fig. 6. The pushing plate 37 is rotatably connected with a gravity overturning block 38 through a pin shaft, an arc-shaped groove is formed in the lower portion of the gravity overturning block, a limit column extending into the arc-shaped groove is arranged on the pushing plate 37, and when the upper side of the gravity overturning block is stressed, the rotating angle of the gravity overturning block around the pin shaft is limited by the arc-shaped groove. When the first bottom plate 33 and the sliding block are driven by the Y-direction pushing cylinder 31 to move in the Y-direction from the lower side of the hopper 22 to the first station 34, the upper side of the gravity overturning block 38 rotates around the square pipe after touching the square pipe, and the square pipe is positioned in a notch at the front side of the pushing plate 37, and the pushing square pipe is continuously moved until the square pipe reaches the first station 34.

The material moving device 4 comprises a Y-direction moving mechanism 4a which is slidably arranged on the workbench surface 11 along the Y direction and two Z-direction clamping mechanisms 4b which are symmetrically arranged on the Y-direction moving mechanism, wherein the Z-direction clamping mechanisms 4b can lift and clamp the fetching tube 9 along the Z direction.

The Y-direction moving mechanism 4a in the material moving device 4 comprises a second bracket 41, a Y-direction traversing cylinder 42 and a second Y-direction guide rail pair 43, the second bracket 41 mounted on the workbench 11 is provided with the Y-direction traversing cylinder 42 and the second Y-direction guide rail pair 43, the Y-direction traversing cylinder 42 is connected with a slide block (specifically, a second bottom plate 44 on the slide block) of the second Y-direction guide rail pair 43, and the Z-direction material clamping mechanism 4b is mounted on the slide block of the second Y-direction guide rail pair 43. The Z-direction clamping mechanism 4b comprises a second bottom plate 44, a side plate 45, a Z-direction lifting cylinder 46 and two finger cylinders 47 distributed along the Y-direction, wherein the side surface of the second bottom plate 44 arranged on the sliding block of the second Y-direction guide rail pair 43 is provided with the side plate 45, and the Z-direction lifting cylinder 46 arranged on the side plate 45 is connected with the finger cylinders 47. The telescopic rod of the Y-direction transverse moving air cylinder 42 stretches and stretches to drive the second bottom plate 44 and the Z-direction clamping mechanism 4b on the second bottom plate to move along the Y direction, the telescopic rod of the Z-direction lifting air cylinder stretches and stretches to drive the finger air cylinder 47 to lift, the square tube is clamped by the finger air cylinder 47, and the square tube is moved to the first station, the second station or moved out of the working table 11.

The square tube positioning mechanism 5a in the clamping and punching device 5 comprises a second X-direction guide rail pair 51, an X-direction push-pull air cylinder 52, a third bottom plate 53, two square tube fixing assemblies 6a and two square tube ejection assemblies 7a, wherein the second X-direction guide rail pair 51 and the X-direction push-pull air cylinder 52 are installed on the workbench 11, the third bottom plate 53 and the two square tube fixing assemblies 6a are installed on a sliding block of the second X-direction guide rail pair, the X-direction push-pull air cylinder 52 is connected with the third bottom plate 53, the square tube fixing assemblies 6a and the square tube ejection assemblies 7a are respectively arranged on the third bottom plate 53 and the workbench 11, and the punching mechanism 8 is installed on the third bottom plate 53. The square tube fixing assembly 6a and the square tube ejection assembly 7a are respectively arranged in two and correspond to the first station 34 and the second station 35.

The square tube fixing assembly 6a comprises a fixing seat, a fixing core rod 62 arranged on the fixing seat 61 and a guide block 63 provided with a limiting groove, wherein the fixing core rod is used for extending into the square tube to fix the axial direction of the square tube.

The square tube ejection assembly 7a comprises a base 71 arranged on the working table 11 and two ejector rods 72 fixed on the base, the ejector rods 72 are parallel to the fixed core rods 62, the two ejector rods 72 are distributed on the outer side of the fixed core rods 62 in a diagonal manner, and the ejector rods 72 penetrate through the fixed seat 61; the fixed core rod stretches into the square pipe when being far away from the ejector rod along the X direction, and the ejector rod ejects out of the square pipe when being close to the ejector rod along the X direction.

Inside cavity of square pipe, fixed plug size shape and the inside adaptation of square pipe, two ejector pins correspond two angles on the square pipe diagonal, and stretch into in the square pipe when fixed plug uses, when fixed plug slides along X to one side and withdraws from the square pipe and drive square pipe, on the ejector pin can withstand square pipe orificial two angles, square pipe is by withstand the ejector pin reverse withstand, the square pipe is taken by fixed plug when moving away the core problem of removal has effectively been avoided.

The square tube fixing assembly 6a further comprises a guide block 63 provided with a limit groove, the fixed seat 61 and the guide block 63 are distributed along the X direction, and the fixed core rod 62 passes through the limit groove 631; the ejector rod 72 sequentially passes through the fixing seat 61 and the limiting groove 631.

In order to reduce the accuracy of vibration in the X direction of the square tube during punching, the square tube fixing assembly may further be provided with a positioning block 64, wherein the fixing seat 61, the guiding block 63 and the positioning block 64 are distributed along the X direction, and pass through the front end of the fixing core rod 62 of the fixing seat 61 and simultaneously pass through the limiting groove 631 and the positioning block 64; the ejector rod 72 sequentially passes through the fixing seat 61, the limiting groove 631 and the positioning block 64.

Two fixed mandrels 62 are provided, one with a Y-directional through-hole for the transverse punch 82 of the punching mechanism to pass through, and the other with a Z-directional through-hole for the longitudinal punch 85 of the punching mechanism to pass through. The workbench surface 11 is provided with a waste material port 15, the third bottom plate 53 is provided with a downward waste material discharge port, and scraps and waste materials generated after square pipe punching fall below the frame 1 through the waste material discharge port and the waste material port 15. Due to the transverse processing, the transverse punch 82 is provided with a channel conversion block 87 at one side far away from the transverse punch 82 in order to enable the scraps to fall into the scraps mouth in a longitudinal direction, the channel conversion block 87 is provided with a longitudinal through hole which is communicated with the Y-direction through hole, and scraps in the Y-direction through hole enter the longitudinal through hole and then fall into the scraps mouth through the scraps discharge hole, as shown in fig. 9.

The punching mechanism 8 comprises a transverse hydraulic cylinder 81, a transverse punch 82 along the Y direction, a longitudinal hydraulic cylinder 84 and a longitudinal punch 85 along the Z direction, wherein a telescopic rod of the transverse hydraulic cylinder 81 is connected with the transverse punch 82, and a telescopic rod of the longitudinal hydraulic cylinder 84 is connected with the longitudinal punch 85. The transverse hydraulic cylinder 81 is fixed above by a bracket 86 installed on the third bottom plate 53, a strip-shaped hole 861 for the telescopic rod of the transverse hydraulic cylinder 81 to pass through is formed in the bracket 86, and a row of fixing holes 862 arranged along the X direction are also formed for the fastener to install and fix the transverse hydraulic cylinder 81. By the design, the specific installation position of the transverse hydraulic cylinder 81 can be adjusted according to actual production requirements on any fixed hole 862 which can be installed.

According to the actual processing requirement, a plurality of longitudinal punches 85 can be arranged, so that a plurality of punching holes on the same surface of the square tube are realized.

The punching mechanism 8 further comprises a third Y-direction guide rail pair 83 and a fixed block 88, the third Y-direction guide rail pair 83 is arranged on the third bottom plate 53, the fixed block 88 is arranged on the sliding block of the third Y-direction guide rail pair 83, and the telescopic rod, the fixed block 84 and the transverse punch 82 of the transverse hydraulic cylinder 81 are sequentially connected. The telescopic rod of the transverse hydraulic oil cylinder 81 stretches out and draws back to drive the fixed block 84 to slide on the guide rail of the third Y-shaped guide rail pair 83, and then the driven transverse punch 82 penetrates through the square pipe 9 and the Y-shaped through holes of the fixed core rod 62 to finish punching the square pipe 9.

In order to improve flexibility, the square tube automatic punching machine is provided with a plurality of rows of mounting holes 14 along the X direction on the working table surface 11, and the square tube automatic punching machine is used for mounting and adjusting the positions of the base 71 and the X-direction push-pull cylinder 52 and adapting to the square tube machining requirements of different lengths through mounting holes of the base 71 or the X-direction push-pull cylinder 52 at different positions.

The working principle of the punching machine is as follows:

(1) The square tubes 9 are arranged on the feeding device 2, two ends of each square tube are positioned on the left and right of the hopper 22, the bottom surface of the hopper 22 is inclined, a longitudinal blanking baffle 13 is arranged in front of the bottom surface, the square tubes 9 slide down and fall down under the vibration feeding of the vibration cylinder and the gravity of the square tubes 9, the first square tube 9 falls onto the rear ends of two support plates 36 supporting the moving device 3, as shown in fig. 2, the first square tube is arranged, the front end of the falling second square tube is blocked by the blanking baffle 13, and the square tubes are continuously stacked longitudinally until the stacking height reaches the lowest position of the bottom surface of the hopper 22;

(2) The pushing mechanism 3a in the supporting and moving device 3 pushes the first square tube 9 at the bottommost part forwards until the first station 34, clamps the punching device 5 to move in the X direction, the fixed core rod 62 of the first square tube fixing assembly 6a stretches into the first square tube, then the punching mechanism 8 performs Z-direction punching operation, namely, the upper surface of the square tube is punched, after punching, the ejector rod 72 of the first square tube ejection assembly 7a is moved in the X direction to push against the diagonal line of the square tube, and the fixed core rod 62 is separated from the first square tube;

(3) The material moving device 4 moves along the Y direction, moves a first square tube on the first station 34 to the second station 35, and supports the moving device 3 to push the second square tube at the bottommost part to the first station; the first square tube is fixed by the second square tube fixing assembly 6a, then the Y-direction punching operation of the punching mechanism 8 is carried out, at the moment, the first square tube fixing assembly 6a is used for fixing the second square tube, the punching mechanism 8 is used for carrying out Z-direction punching operation on the second square tube, after the completion, the square tube is ejected by the square tube ejection assembly 7a, the processed first square tube is moved out of the work table 11 from the blanking opening 12 by one finger cylinder 47 of the material moving device 4, meanwhile, the second square tube is placed on the second station by the other finger cylinder 47, and then the second square tube is subjected to Y-direction punching operation by the punching mechanism 8, and is also moved out of the blanking opening 12 after the completion;

(4) And repeating the process, and sequentially carrying out multi-face punching on the later-stage square tubes until the punching operation is completed on all the square tubes in the feeding device 2.

Note that the above is only a preferred embodiment of the present utility model and the technical principle applied. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.

Claims (10)

1. The automatic square pipe punching machine is characterized by comprising a frame, wherein a feeding device, a supporting and moving device, a material moving device and two clamping and punching devices are arranged on a workbench surface of the frame, the feeding device, the supporting and moving device and the material moving device are sequentially arranged along the Y direction, and the two clamping and punching devices are symmetrically arranged on the left side and the right side of the supporting and moving device along the X direction; the clamping and punching device comprises a square tube positioning mechanism and a punching mechanism arranged on the square tube positioning mechanism, wherein the square tube positioning mechanism is arranged on the workbench surface in a sliding manner along the X direction, and the punching mechanism punches a square tube along the Z direction and the Y direction.

2. The automatic square tube punching machine according to claim 1, wherein the feeding device comprises a first bracket slidably installed on the working table surface along the X direction, a hopper installed on the first bracket, and a vibrating cylinder connected with the hopper, the bottom surface of the hopper is inclined, and the lower part of the lowest part of the bottom surface of the hopper correspondingly supports the moving device.

3. The automatic square tube punching machine according to claim 1, wherein the supporting and moving device comprises a pushing mechanism slidably mounted on the working table in the Y direction, and a first station and a second station distributed in the Y direction.

4. The automatic square tube punching machine according to claim 1, wherein the material moving device comprises a Y-direction moving mechanism which is slidably arranged on the workbench surface along the Y direction and two Z-direction clamping mechanisms which are symmetrically arranged on the Y-direction moving mechanism, and the Z-direction clamping mechanisms can clamp the square tubes along the Z-direction lifting.

5. The automatic square pipe punching machine according to claim 4, wherein the Y-direction moving mechanism comprises a second bracket, a Y-direction traversing cylinder and a second Y-direction guide rail pair, the second bracket arranged on the workbench surface is provided with the Y-direction traversing cylinder and the second Y-direction guide rail pair, the Y-direction traversing cylinder is connected with a slide block of the second Y-direction guide rail pair, and the Z-direction clamping mechanism is arranged on the slide block of the second Y-direction guide rail pair;

Or the Z-direction clamping mechanism comprises a second bottom plate, a side plate, Z-direction lifting cylinders and two finger cylinders distributed along the Y direction, wherein the side surface of the second bottom plate arranged on the Y-direction moving mechanism is provided with the side plate, and the Z-direction lifting cylinders arranged on the side plate are connected with the finger cylinders.

6. The automatic square tube punching machine according to claim 1, wherein the square tube positioning mechanism comprises a second X-direction guide rail pair arranged on the workbench surface, an X-direction push-pull air cylinder, a third bottom plate arranged on the second X-direction guide rail pair, two square tube fixing assemblies and two square tube ejection assemblies which are arranged in parallel, the X-direction push-pull air cylinder is connected with the third bottom plate, the square tube fixing assemblies and the square tube ejection assemblies are respectively arranged on the third bottom plate and the workbench surface, and the punching mechanism is arranged on the third bottom plate.

7. The automatic square tube punching machine according to claim 6, wherein the square tube fixing assembly comprises a fixing base and a fixing core rod arranged on the fixing base;

The square tube ejection assembly comprises a base arranged on the working table surface and two ejector rods fixed on the base, wherein the ejector rods are parallel to the fixed core rod, the two ejector rods are distributed on the outer side of the fixed core rod in a diagonal way, and the ejector rods penetrate through the fixed seat; the fixed core rod stretches into the square pipe when being far away from the ejector rod along the X direction, and the ejector rod ejects out of the square pipe when being close to the ejector rod along the X direction.

8. The automatic square pipe punching machine according to claim 7, wherein the square pipe fixing assembly further comprises guide blocks provided with limiting grooves, the fixing seats and the guide blocks are distributed along the X direction, and the fixing core rods penetrate through the limiting grooves; the ejector rod sequentially passes through the fixing seat and the limiting groove.

9. An automatic square pipe punching machine according to claim 7 or 8, characterized in that one of the two fixed core rods is provided with a Y-direction through hole for the punch of the punching mechanism to pass through, and the other is provided with a Z-direction through hole for the punch of the punching mechanism to pass through.

10. The automatic square pipe punching machine according to claim 9, wherein the punching mechanism comprises a transverse hydraulic cylinder and a transverse punch in the Y direction, and a longitudinal hydraulic cylinder and a longitudinal punch arranged in the Z direction, a telescopic rod of the transverse hydraulic cylinder is connected with the transverse punch, and a telescopic rod of the longitudinal hydraulic cylinder is connected with the longitudinal punch.