Multi-angle punching all-in-one machine for U-shaped pipe

Abstract

The utility model discloses a U-shaped pipe multi-angle punching all-in-one machine which comprises a machine frame, two machining devices are arranged on the machine frame in a bilateral symmetry mode, and the machining device on the right side can move in the X direction. The machining device comprises a vertical pipe punching mechanism and a transverse pipe punching mechanism which are arranged on the bottom plate, the vertical pipe punching mechanism comprises two X-direction punches which are bilaterally symmetrical, and a first limiting part used for fixing a vertical pipe of the U-shaped pipe is arranged between the two X-direction punches; a second limiting part used for fixing a transverse pipe of the U-shaped pipe is arranged on the rear side of the transverse pipe punching mechanism. The vertical pipe punching mechanism and the transverse pipe punching mechanism are distributed in the front-back direction and used for punching a vertical pipe and a transverse pipe of a U-shaped pipe correspondingly. By means of the U-shaped pipe multi-angle all-in-one machine, multi-angle comprehensive punching operation of a transverse pipe and a vertical pipe of a U-shaped pipe can be achieved, opposite punching of the vertical pipe is achieved, and machining operation is convenient and reliable.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical equipment, and specifically relates to a U-shaped tube multi-angle punching integrated machine. Background Art

[0002] In daily life, U-shaped tubes are often used as support parts for products such as tables and chairs. The fixation of U-shaped tubes to other parts of the product is mostly achieved by screws, so U-shaped tubes need to be punched during the production process for installing screws. The U-shaped tube consists of three parts: a horizontal tube and two vertical tubes on both sides of the horizontal tube, and all three parts need to be punched. Traditional punching equipment is mostly a single drill bit, and punching multiple holes requires a separate punching operation for each part in sequence. A Chinese patent with publication number "CN108067541A" discloses a hydraulic punching machine for U-shaped tubes. Compared with the traditional punching operation one by one, it can punch holes in the two vertical tubes of the U-shaped tube at the same time, but it cannot punch holes in the horizontal tube. As a connecting and fixing part in contact with products such as desktop boards, the horizontal tube needs to be fixed to the desktop board by screws after punching. Workers need an additional punching machine to process the horizontal tube. Therefore, the punching machine in the above patent is still not perfect. Summary of the invention

[0003] The utility model aims to provide a U-shaped tube multi-angle punching integrated machine in view of the defects of the prior art.

[0004] In order to achieve the above objectives, the utility model adopts the following technical solutions: a U-shaped tube multi-angle punching integrated machine, comprising a frame, on which two processing devices are symmetrically arranged on the left and right, and the processing device on the right can move along the X direction; the processing device comprises a vertical tube punching mechanism and a horizontal tube punching mechanism arranged on a bottom plate, the vertical tube punching mechanism comprises two X-direction punches symmetrically arranged on the left and right, and a first limiting portion for fixing the vertical tube of the U-shaped tube is arranged between the two X-direction punches; a second limiting portion for fixing the horizontal tube of the U-shaped tube is arranged on the rear side of the horizontal tube punching mechanism; the vertical tube punching mechanism and the horizontal tube punching mechanism are distributed in the front-to-back direction, and are respectively used for punching the vertical tube and the horizontal tube of the U-shaped tube.

[0005] Furthermore, the frame is provided with an X-direction displacement guide rail pair and an X-direction screw rod, and a processing device is simultaneously connected to the slider of the X-direction displacement guide rail pair and the nut of the X-direction screw rod.

[0006] Furthermore, it also includes an adjustable fixing plate, and the bottom plates of the two processing devices are detachably connected via the fixing plate.

[0007] Furthermore, the vertical tube punching mechanism includes two X-direction cylinders symmetrically distributed front to back on the outer side of the bottom plate, and two connecting plates symmetrically distributed left to right on the inner side of the bottom plate. The X-direction cylinders are connected to the outer connecting plates, and the connecting plates are movably installed on the bottom plate along the X direction. The two X-direction punches are adjustably installed along the Y direction of the two connecting plates respectively.

[0008] Furthermore, the vertical tube punching mechanism also includes two front-to-back symmetrical X-guide rail pairs, the sliders of the X-guide rail pairs are connected to the lower surface of the connecting plate, and the guide rails of the X-guide rail pairs are installed on the bottom plate.

[0009] Furthermore, the lower surface of the connecting plate is provided with an assembly groove adapted to the upper end of the slider of the X-guide rail pair.

[0010] Furthermore, the connecting plate on the outer side of any processing device is connected to the connecting plate on the inner side of another processing device via a screw.

[0011] Furthermore, the X-direction punching assembly also includes a pressure strip, which is arranged parallel to the X-direction punch and can be adjusted along the Y direction of the connecting plate.

[0012] Furthermore, the first limiting portion and the second limiting portion are provided with processing through holes for punching operations.

[0013] Furthermore, the first limiting part includes two left-right symmetrical material return blocks, the outer sides of the material return blocks are connected to a fixed seat equipped with an X-direction punch through a spring, the fixed seat is adjustably installed on the connecting plate along the Y direction, the inner side surfaces of the two material return blocks are grooved to form a first limiting groove, the second limiting part includes a positioning block adjustably installed on the bottom plate, the positioning block is provided with a second limiting groove, and the vertical tube and the horizontal tube of the U-shaped tube are placed in the first limiting groove and the second limiting groove.

[0014] Furthermore, the transverse tube punching mechanism can be adjustably installed on the front side of the upper surface of the base plate, and can be installed on the base plate at different positions and angles to process the curved section or straight section of the transverse tube.

[0015] Furthermore, the transverse tube punching mechanism includes a Y-direction oil cylinder and a Y-direction punch, and the Y-direction oil cylinder is connected to the Y-direction punch.

[0016] The beneficial effects of the utility model are as follows: the U-shaped tube multi-angle integrated machine can be used to realize comprehensive punching operations at multiple angles of the horizontal tube and vertical tube of the U-shaped tube, and the processing operation is convenient and reliable; the X-direction punches symmetrically arranged on the left and right sides of a single vertical tube can also punch the single vertical tube in opposite directions, so that the surface of the vertical tube product after punching is free of burrs; the X-direction movement adjustment of the processing device is used to adapt to the processing needs of U-shaped tubes of different widths and specifications, the first limiting part and the second limiting part are used to fix the horizontal tube and the vertical tube of the U-shaped tube, and the punching processing is performed in parts by the horizontal tube punching mechanism and the vertical tube punching mechanism, and each part can be processed simultaneously or not simultaneously; an assembly groove is arranged under the connecting plate to facilitate the installation and sliding of the slider to be more accurate and reliable, and the straight tube is limited from the top and bottom by the pressure strips arranged in parallel with the X-direction punch, so as to further increase the fixing effect of the straight tube and improve the stability of the punch during the punching operation; the horizontal tube punching mechanism is installed on the upper surface of the bottom plate at different angles to realize the effective processing of different parts of the horizontal tube, and the operator can freely adjust the processing angle and position according to the needs, which is more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional U-shaped tube multi-angle punching machine. Figure 1 ;

[0018] Figure 2 It is a three-dimensional U-shaped tube multi-angle punching machine. Figure 2 ;

[0019] Figure 3 It is a three-dimensional U-shaped tube multi-angle punching machine. Figure 3 ;

[0020] Figure 4 It is a stereoscopic picture of a U-shaped tube multi-angle punching machine without the U-shaped tube installed.

[0021] In the figure: 1 frame, 11X screw rod, 12X displacement guide rail pair, 13 fixed plate, 2 processing device, 21 bottom plate, 21a mounting hole, 3A first limit part, 3B second limit part, 31a first limit groove, 31b second limit groove, 32 stripping block, 33 positioning block, 34 lifting plate, 34aZ strip hole, 35 processing through hole, 4 horizontal tube punching mechanism, 41Y cylinder, 42Y punch, 43Y guide rail pair , 44 fixed plate, 44a strip long hole, 45 extension plate, 5 vertical tube punching mechanism, 51 connecting plate, 51aY direction long hole, 51b assembly groove, 51c outer connecting plate, 51d inner connecting plate, 52X direction cylinder, 53X direction punch, 54X guide rail pair, 55 pressure strip, 56 spring, 57 fixed seat, 6U-shaped tube, 61 horizontal tube, 61a curved section, 61b straight section, 62 vertical tube, 7 screw one, 7a screw two. DETAILED DESCRIPTION

[0022] The specific embodiments of the present invention are further described in conjunction with the accompanying drawings to make the present technical solution clearer and more understandable.

[0023] like Figure 1-4 As shown, a U-shaped tube multi-angle punching integrated machine includes a frame 1, on which two processing devices 2 are symmetrically arranged on the left and right sides, wherein the processing device 2 on the right side can move along the X direction; the processing device 2 includes a vertical tube punching mechanism 5 and a horizontal tube punching mechanism 4 arranged on the bottom plate 21, the vertical tube punching mechanism 5 includes two X-direction punches 53 symmetrically arranged on the left and right sides, and a first limiter 3A for fixing the vertical tube 62 of the U-shaped tube 6 is arranged between the two X-direction punches 53; the rear side of the horizontal tube punching mechanism 4 is provided with a second limiter 3B for fixing the horizontal tube 61 of the U-shaped tube 6; the vertical tube punching mechanism 5 and the horizontal tube punching mechanism 4 are distributed in the front-back direction, and are respectively used for punching the vertical tube 62 and the horizontal tube 61 of the U-shaped tube 6. By respectively arranging an X-direction punch 53 on the left and right sides of a single vertical tube, the opposite processing operation at the same processing position can be realized, so that the outer peripheral surface of the hole after punching is free of burrs; in actual operation, the single vertical tube can also be punched in one direction only on the left or right side according to needs.

[0024] The frame 1 is provided with an X-direction displacement guide pair 12 and an X-direction screw 11, and the bottom plate 21 of the right processing device is simultaneously connected with the slider of the X-direction displacement guide pair 12 and the nut of the X-direction screw 11. Two X-direction displacement guide pairs 12 are arranged in parallel and installed on the frame 1 along the front-to-back direction, and the front and rear sides of the processing device 2 on the right are respectively fixed with the sliders of the two X-direction displacement guide pairs 12. According to the different lengths of the transverse tube 61 of the U-shaped tube to be punched, the X-direction movement of the processing device is realized by driving the movable processing device 2 and the slider to slide on the guide rail through the X-direction screw 11, and the relative distance between the two processing devices is adjusted to fit the transverse tube size of the U-shaped tube.

[0025] The punching machine also includes an adjustable fixing plate 13, and the bottom plates 21 of the two processing devices are detachably connected through the fixing plate 13. Specifically, a plurality of through holes are opened in the fixing plate 13 along the length direction. When the processing device on the right side is moved into position, it is fixed to the two bottom plates 21 through the through holes by fasteners such as screws, so as to fix the positions of the two bottom plates and prevent displacement.

[0026] The vertical pipe punching mechanism 5 shown in this embodiment includes two X-direction oil cylinders 52 symmetrically distributed on the outside of the bottom plate 21, and two connecting plates 51 symmetrically distributed on the inside of the bottom plate 21. The X-direction oil cylinder 52 is connected to the outer connecting plate 51, and the connecting plate 51 is movably installed on the bottom plate 21 along the X direction. The X-direction punch 53 is adjustable along the Y direction of the connecting plate 51. Specifically, a Y-direction long hole 51a is opened on the connecting plate 51, and the X-direction punch 53 is adjustable in the Y direction by installing the X-direction punch 53 at different positions of the Y-direction long hole 51a, so as to adapt to the hole-opening operation of different parts of the vertical pipe 62. The X-direction oil cylinder 52 drives the connecting plate 51 and the X-direction punch 53 to move along the X direction to perform the punching operation.

[0027] The vertical tube punching mechanism 5 also includes two front-to-back symmetrical X-direction guide rail pairs 54, the sliders of the X-direction guide rail pairs 54 are connected to the lower surface of the connecting plate 51, the guide rails of the X-direction guide rail pairs 54 are installed on the bottom plate 21, and the connecting plate 51 is movable along the X direction by sliding the sliders.

[0028] The lower surface of the connecting plate 51 is provided with an assembly groove 51 b adapted to the upper end of the slider of the X-guide rail pair 54 , so that the installation of the slider and the connecting plate can be more accurate.

[0029] The connecting plate 51 on the outside of any processing device is connected to the connecting plate 51 on the inside of another processing device by screws. Figure 4 As shown, the outer connecting plate 51c in the left processing device 2 and the inner connecting plate 51d in the right processing device 2 are connected by screw rod 1 7, and the inner connecting plate 51d in the left processing device 2 and the outer connecting plate 51c in the right processing device 2 are connected by screw rod 2 7a. The X-direction movement of the connecting plates on the X-guide rail pair 54 is controlled by rotating the screw rods.

[0030] The X-direction punching assembly further includes a pressure strip 55, which is arranged parallel to the X-direction punch 53 and can be adjusted along the Y direction of the connecting plate. The pressure strip 55 and the X-direction punch 53 are installed on a fixing seat 57, and the fixing seat 57 is installed at different positions in the Y-direction long hole 51a of the connecting plate 51 to process different parts of the vertical pipe 62. Four pressure strips 55 are symmetrically arranged at four corners on the side of the fixing seat 57 of this embodiment to press the upper and lower sides of the vertical pipe 62, and the X-direction punch 53 is located in the area between the four pressure strips 55.

[0031] The first limiting part 3A and the second limiting part 3B are provided with processing through holes 35 for punching operation. The X-direction punch 53 punches the vertical pipe and the horizontal pipe through the processing through holes.

[0032] The first limiting portion 3A includes two left-right symmetrical ejection blocks 32, the ejection block 32 is provided with the processed through hole 35, the outer side surface of the ejection block 32 is connected to the fixed seat 57 equipped with the X-direction punch 53 through a spring 56, the fixed seat 57 is adjustably mounted on the connecting plate 51 along the Y direction, and the inner side surface between the two ejection blocks 58 is grooved to form a first limiting groove 31a; the second limiting portion 3B includes a positioning block 33 adjustably mounted on the bottom plate 21, the positioning block 33 is provided with a second limiting groove 31b and a processed through hole 35, and the vertical pipe 62 and the horizontal pipe 61 of the U-shaped tube are placed in the first limiting groove 31a and the second limiting groove 31b. During the punching operation, the X-axis oil cylinder drives the X-axis punch 53 and the pressure strip 55 to move toward the material return block 58, and the pressure strips 55 on the upper and lower sides of the fixed seat 57 pass through the spring 56 and the through holes on the material return block 58 to press the upper and lower sides of the vertical pipe 62 for auxiliary limiting. The spring 56 is compressed, and the X-axis punch 53 punches the vertical pipe; when the punching is completed, the X-axis oil cylinder drives the X-axis punch 53 and the pressure strip 55 away from the material return block 58, and the spring 56 is reset.

[0033] An L-shaped lifting plate 34 is set on the front side of one of the material return blocks 58. One side of the lifting plate 34 is installed on the front side of the material return block 58 at different heights by means of screws or other fasteners through the Z-direction strip hole 34a. The other side of the lifting plate 34 faces the other pushing block, and the other side is located under the vertical pipe 62 to provide auxiliary support for the vertical pipe 62.

[0034] The extension plate 45 of the transverse tube punching mechanism 5 described in this embodiment can be adjustably installed on the front side of the upper surface of the base plate 21. The extension plate 45 is installed at different positions of the base plate 21 by fasteners such as screws at different position angles to correspond to the processing of the curved section 61a or the straight section 61b of the transverse tube 61.

[0035] Specifically, the transverse tube punching mechanism 4 shown includes a Y-direction oil cylinder 41 and a Y-direction punch 42, a Y-direction guide rail pair 43, a fixed plate 44 and an extension plate 45. The Y-direction oil cylinder 41, the Y-direction punch 42 and the Y-direction guide rail pair 43 are all mounted on the fixed plate 44, and the Y-direction oil cylinder 41 is connected to the Y-direction punch 42. The top rod of the Y-direction oil cylinder 41 and the slider of the Y-direction guide rail pair 43 are fixed to the connecting seat on which the Y-direction punch 42 is installed. The Y-direction oil cylinder 41 drives the connecting seat and the slider to move, and drives the front end of the Y-direction punch 42 to move to punch the transverse tube. The extension plate 45 is installed on the bottom plate 21, and a strip-shaped long hole 44a is opened on the fixed plate 44. The fixing plate 44 is fixed to the installation holes at different positions on the extension plate 45 through the strip-shaped long hole 44a by fasteners such as screws (similarly, the extension plate 45 can also open a long round hole to be assembled and fixed with the installation holes at different positions of the bottom plate 21 by fasteners), so as to adapt to the punching requirements of different angles or positions of the transverse tube 61.

[0036] The punching machine of this embodiment is electrically connected to control the operation of various electrical components (such as X-axis cylinder, Y-axis cylinder, etc.) through a controller (such as a PLC programmable logic controller), thereby achieving precise control and completing punching processing on various parts of the U-shaped tube 6.

[0037] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A U-shaped tube multi-angle punching machine, characterized in that: The machine comprises a frame, on which two processing devices are symmetrically arranged on the left and right sides, wherein the processing device on the right side can move along the X direction; the processing device comprises a vertical tube punching mechanism and a horizontal tube punching mechanism arranged on a bottom plate, the vertical tube punching mechanism comprises two X-direction punches symmetrically arranged on the left and right sides, and a first stopper for fixing the vertical tube of the U-shaped tube is arranged between the two X-direction punches; and a second stopper for fixing the horizontal tube of the U-shaped tube is arranged at the rear side of the horizontal tube punching mechanism; The vertical tube punching mechanism and the horizontal tube punching mechanism are distributed in the front-to-back direction and are used for punching the vertical tube and the horizontal tube of the U-shaped tube respectively.

2. The U-shaped tube multi-angle punching machine according to claim 1, characterized in that: The frame is provided with an X-direction displacement guide rail pair and an X-direction screw rod, and a processing device is simultaneously connected with the slider of the X-direction displacement guide rail pair and the nut of the X-direction screw rod; Alternatively, it further comprises an adjustable fixing plate, and the bottom plates of the two processing devices are detachably connected via the fixing plate.

3. The U-shaped tube multi-angle punching machine according to claim 1, characterized in that: The vertical pipe punching mechanism includes two X-direction cylinders symmetrically distributed on the outer side of the bottom plate in front and back, and two connecting plates symmetrically distributed on the inner side of the bottom plate in left and right. The X-direction cylinders are connected to the outer connecting plates, and the connecting plates are movably installed on the bottom plate along the X direction. The two X-direction punches are adjustably installed along the Y direction of the two connecting plates respectively.

4. The U-shaped tube multi-angle punching machine according to claim 3, characterized in that: The vertical tube punching mechanism also includes two front-to-back symmetrical X-guide rail pairs, the sliders of the X-guide rail pairs are connected to the lower surface of the connecting plate, and the guide rails of the X-guide rail pairs are installed on the bottom plate.

5. The U-shaped tube multi-angle punching machine according to claim 4, characterized in that: The lower surface of the connecting plate is provided with an assembly groove adapted to the upper end of the slider of the X-guide rail pair.

6. The U-shaped tube multi-angle punching machine according to claim 3, characterized in that: The connecting plate on the outer side of any processing device is connected to the connecting plate on the inner side of another processing device through a screw rod.

7. The U-shaped tube multi-angle punching machine according to claim 1, characterized in that: The vertical tube punching mechanism also includes a pressure strip, which is arranged parallel to the X-direction punch and can be adjusted along the Y-direction of the connecting plate.

8. The U-shaped tube multi-angle punching machine according to claim 1, characterized in that: The first limiting part and the second limiting part are provided with processing through holes for punching operation.

9. The U-shaped tube multi-angle punching machine according to claim 1, characterized in that: The first limiting part includes two left-right symmetrical material return blocks, the outer sides of the material return blocks are connected to a fixed seat equipped with an X-direction punch through a spring, the fixed seat is adjustably installed on the connecting plate along the Y direction, the inner sides of the two material return blocks are grooved to form a first limiting groove, the second limiting part includes a positioning block adjustably installed on the bottom plate, the positioning block is provided with a second limiting groove, and the vertical tube and the horizontal tube of the U-shaped tube are placed in the first limiting groove and the second limiting groove.

10. The U-shaped tube multi-angle punching machine according to claim 1, characterized in that: The transverse tube punching mechanism can be adjusted and installed on the front side of the upper surface of the bottom plate, and can be installed on the bottom plate at different positions and angles to process the curved section or straight section of the transverse tube; Alternatively, the transverse tube punching mechanism comprises a Y-direction oil cylinder and a Y-direction punch, and the Y-direction oil cylinder is connected to the Y-direction punch.

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