阅读说明：本技术 弯管打孔设备和打孔方法 (Bent pipe punching equipment and punching method ) 是由 林姚辰 林伟明 宫志民 郑剑 杜佳富 黄文胜 周青锋 徐斌 陈滨 于 2021-07-30 设计创作，主要内容包括：本发明公开了一种弯管打孔设备和打孔方法,包括工作台、轮模座、转盘、打孔器、用于驱动转盘转动的驱动机构和多个用于管件固定的快速夹,转盘转动设置在工作台上方,打孔器固定在转盘上,轮模座左侧面为圆弧面,圆弧面方便弯管定位,转盘转动带动打孔器围绕轮模座左侧圆弧面的轴线转动；打孔时,将打孔器固定在转盘上；然后通过快速夹将弯管固定在轮模座的前侧或后侧；接着驱动转盘将打孔器移动至要求位置；最后驱动打孔器在弯管上开孔。通过转盘带动打孔器转动的方式,使得打孔器和管件处于同一操作平面上,使打孔的过程更加稳定,多次转动转盘可以保证各个孔之间位置的一致性；通过上述方法可以方便快捷的实现在弯管上打孔。(The invention discloses a bent pipe punching device and a punching method, and the bent pipe punching device comprises a workbench, a wheel die holder, a rotary table, a puncher, a driving mechanism for driving the rotary table to rotate and a plurality of quick clamps for fixing a pipe fitting, wherein the rotary table is rotatably arranged above the workbench, the puncher is fixed on the rotary table, the left side surface of the wheel die holder is an arc surface which is convenient for bent pipe positioning, and the rotary table rotates to drive the puncher to rotate around the axis of the arc surface on the left side of the wheel die holder; when punching, fixing the puncher on the turntable; then the bent pipe is fixed on the front side or the rear side of the wheel die holder through a quick clamp; then, driving the turntable to move the puncher to a required position; and finally, driving the puncher to open a hole on the bent pipe. The hole puncher and the pipe fitting are positioned on the same operation plane in a mode that the rotary table drives the hole puncher to rotate, so that the hole punching process is more stable, and the position consistency among holes can be ensured by rotating the rotary table for many times; the method can conveniently and quickly realize punching on the bent pipe.)

1. A bent pipe punching method is characterized in that: the pipe punching machine comprises a workbench (1), a wheel die holder (4), a turntable (3), a puncher (7) for pipe punching, a driving mechanism (2) for driving the turntable (3) to rotate and a plurality of quick clamps (6) for fixing the pipe, wherein the turntable (3) is rotatably arranged above the workbench (1), the puncher (7) is fixed on the turntable (3), the left side surface of the wheel die holder (4) is an arc surface, the driving mechanism (2) drives the turntable (3) to drive the puncher (7) to rotate around the axis of the arc surface on the left side of the wheel die holder (4), and a bent pipe can be fixed on the front side or the rear side of the wheel die holder (4) by the plurality of quick clamps (6); the punching step of the bent pipe comprises the following steps:

step 1): fixing the puncher (7) on the turntable;

step 2): the bent pipe is fixed on the front side or the rear side of the wheel die holder (4) through the quick clamp (6);

step 3): the driving mechanism (2) drives the turntable (3) to move the puncher (7) to a required position;

step 4): driving a puncher (7) to open a hole on the bent pipe;

step 5): and repeating the step 3) and the step 4) until the punching is finished.

2. A bent pipe punching apparatus to which the bent pipe punching method according to claim 1 is applied, characterized in that: install main shaft (8) on workstation (1), carousel (3) rotate to be installed on main shaft (8), and wheel die holder (4) detachable fixed mounting has seted up two adjustment tank (31) on carousel (3) on main shaft (8), and two adjustment tank (31) symmetry set up in main shaft (8) both sides, and hole puncher (7) are fixed in arbitrary one adjustment tank (31) through a locking screw.

3. The elbow punching apparatus according to claim 2, wherein: the puncher (7) comprises an installation seat (71) and a punching head (79), the installation seat (71) is fixed in any one of the adjusting grooves (31) through a first locking screw, and the punching head (79) is arranged above the installation seat (71) in a sliding mode.

4. The elbow punching apparatus according to claim 3, wherein: the punching head (79) points to the axis of the arc-shaped surface of the wheel die holder (4).

5. The elbow punching apparatus according to claim 2, wherein: a plurality of threaded holes (311) are formed in the adjusting groove (31), and when the distance between the wheel die holder (4) and the puncher (7) needs to be adjusted, the puncher (7) can be fixed to the threaded holes (311) in different positions through the first locking screw.

6. The elbow punching apparatus according to claim 2, wherein: actuating mechanism (2) include lead screw (23), two transmission arms (28) and two slider (26), two transmission arms (28) one end articulate in carousel (3) bottom, the pin joint of two transmission arms (28) and carousel (3) is located main shaft (8) both sides, two transmission arms (28) other end articulate respectively on two slider (26), the screw on lead screw (23) divide into two sections and each other is anti-thread, thereby lead screw (23) rotate two slider (26) of drive and are close to each other or keep away from each other.

7. The elbow punching apparatus according to claim 6, wherein: both transmission arms (28) are bent arms.

8. The elbow punching apparatus according to claim 6, wherein: the hinged parts of the two transmission arms (28) and the rotary table (3) are respectively positioned below the two adjusting grooves (31).

9. The elbow punching apparatus according to claim 8, wherein: the distance between the hinged parts of the two transmission arms (28) and the rotary table (3) and the main shaft (8) is the same.

10. The elbow punching apparatus according to claim 2, wherein: an index plate (35) with an angle mark is fixedly installed on the workbench (1), the index plate (35) is arc-shaped, and the rotary disc (3) is positioned on the inner side of the index plate (35).

Technical Field

The invention relates to the field of manual punches, in particular to elbow punching equipment and a punching method.

Background

Currently, when a hole is formed in the elbow, the hole forming position is usually marked on the elbow, and then the pipe after marking is taken to the drill floor for hole forming processing. The method is time-consuming and labor-consuming, and has lower working efficiency; meanwhile, a certain error exists in the manual punctuation. When punching, because manual operation often can beat the inclined hole, influence follow-up return bend's use. If the pipe is bent after punching, the position, size and shape of the hole can be changed due to the action of tension in the pipe bending process. Patent document No. CN204686093U discloses a pipe punching device, belonging to the field of pipe tools. It has solved the inconvenient problem of current trompil sword. This pipe perforating device includes the fixing base, the fixing base includes the left side board, right side board and roof, still include the handle of a knife, the handle of a knife tip is equipped with the tool bit, the roof has the locating hole, the handle of a knife passes the locating hole and makes the tool bit arrange in the fixing base in, the locating hole both sides still are equipped with bar hole one and bar hole two, still include bolt one and bolt two, bolt one and bolt two press from both sides tightly on bar hole one and bar hole two through with the nut spiro union, still spiro union has reference column one and reference column two in bolt one and the bolt two respectively, be connected with locating piece one and locating piece two on reference column one and the reference column two respectively, left side board and right side board spiro union have adjusting bolt respectively, and left side board and right side board are connected with left clamp splice and right clamp splice through adjusting bolt respectively, left clamp splice and right clamp splice have the indent arcwall face that sets up mutually respectively. The tube openings mentioned in the above patents can only be used to perforate straight tubes, and for tubes with bends, especially true bends with multiple orientations and multiple angles, can not be perforated.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide a punching apparatus and a punching method for a bent pipe, which can punch holes on a side surface of a pipe member bent at a plurality of places.

In order to achieve the purpose, the invention adopts the following technical scheme: a punching method for a bent pipe comprises a workbench, a wheel die holder, a rotary table, a puncher for punching the pipe fitting, a driving mechanism for driving the rotary table to rotate and a plurality of quick clamps for fixing the pipe fitting, wherein the rotary table is rotatably arranged above the workbench, the puncher is fixed on the rotary table, the left side surface of the wheel die holder is an arc surface, the driving mechanism drives the rotary table to drive the puncher to rotate around the axis of the arc surface on the left side of the wheel die holder, and the bent pipe can be fixed on the front side or the rear side of the wheel die holder by the plurality of quick clamps; the punching step of the bent pipe comprises the following steps:

step 1): fixing the puncher on the turntable;

step 2): the bent pipe is fixed on the front side or the rear side of the wheel die holder through the quick clamp;

step 3): the driving mechanism drives the turntable to move the puncher to a required position;

step 4): driving the puncher to open a hole on the bent pipe;

step 5): and repeating the step 3) and the step 4) until the punching is finished.

The main shaft is installed on the workbench, the rotary table is rotatably installed on the main shaft, the wheel die base is detachably and fixedly installed on the main shaft, two adjusting grooves are formed in the rotary table, the two adjusting grooves are symmetrically formed in two sides of the main shaft, and the puncher is fixed in any one adjusting groove through the first locking screw. Like this for equipment is more stable, and two transfer grooves are convenient to be adjusted the hole puncher, make things convenient for subsequent with trading and maintenance.

As preferred, seted up the adjustment tank on the carousel, the hole puncher includes mount pad and punching head, and the head that punches slides and sets up in the mount pad top, and during the installation hole puncher, the mount pad is fixed in the adjustment tank through first locking screw.

Preferably, the perforating head is directed towards the axis of the arc-shaped face of the wheel die holder. Thus, the consistency of all the pore diameters is ensured,

preferably, a plurality of threaded holes are formed in the adjusting groove, and when the distance between the die holder and the puncher needs to be adjusted, the puncher or the roller is fixed at the threaded holes in other positions through the first locking screw. Thus, the distance between the die holder and the puncher can be adjusted.

Preferably, the driving mechanism comprises a screw rod, two transmission arms and two sliding blocks, one ends of the two transmission arms are hinged to the bottom of the rotary table, hinged points of the two transmission arms and the rotary table are located on two sides of the main shaft, the other ends of the two transmission arms are hinged to the two sliding blocks respectively, threads on the screw rod are divided into two sections and are mutually reverse threads, and the screw rod rotates to drive the two sliding blocks to be close to or away from each other. Therefore, the rotating angle of the rotary disc can be accurately controlled through the screw rod, and the hole distance between every two holes is guaranteed.

Preferably, both transmission arms are bent arms. In this way, the range of rotation of the turntable can be increased.

Preferably, the joints of the two transmission arms and the rotary table are respectively positioned below the two adjusting grooves. In this way, the stability of the device is improved.

Preferably, the workbench is fixedly arranged on the main shaft, the turntable is rotatably arranged on the main shaft, and the two transmission arms are hinged with the turntable at the same distance from the main shaft. In this way, the stability of the device is improved.

Preferably, the workbench is fixedly provided with an index plate with an angle mark, the index plate is arc-shaped, and the rotary plate is positioned on the inner side of the index plate. So set up, can more audio-visual definite current return bend angle to and confirm the contained angle between the hole of pipe fitting, guarantee the hole site precision.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the arc-shaped surface of the left side seat of the wheel die is conveniently matched with the bending section of the bent pipe, and the bent pipe can be fixed more quickly through a plurality of quick clamps; the hole puncher and the pipe fitting are positioned on the same operation plane in a mode that the rotary table drives the hole puncher to rotate, so that the hole punching process is more stable, and the position consistency among holes can be ensured by rotating the rotary table for many times; the method can conveniently and quickly realize punching on the bent pipe.

Drawings

FIG. 1 is a first schematic view of a process for bending a pipe;

FIG. 2 is a second schematic view of a process for bending a pipe;

FIG. 3 is a third schematic view of a process for bending a pipe;

FIG. 4 is a fourth schematic view of a process for bending a pipe fitting;

FIG. 5 is a schematic view of the drive mechanism removed;

FIG. 6 is a cross-sectional view taken at A-A of FIG. 5;

FIG. 7 is a schematic view of a connection structure of the die holder, the turntable and the roller;

FIG. 8 is a schematic view of the die holder and the roller removed;

FIG. 9 is a schematic view of the driving mechanism;

FIG. 10 is a schematic view of a bent pipe;

FIG. 11 is a schematic view of a wheel form base;

FIG. 12 is a first schematic view of a elbow punching process;

FIG. 13 is a second schematic diagram of a elbow punching process;

fig. 14 is a schematic structural view of the punch.

Reference numerals: 1. a work table; 11. a working panel; 12. a support frame; 2. a drive mechanism; 21. a first bearing housing; 22. a second bearing housing; 23. a screw rod; 24. a handle; 25. a feed nut; 251. a linear bearing; 26. a slider; 27. a guide bar; 28. a drive arm; 281. a first hinge shaft; 282. a second hinge shaft; 29. a graphite copper sleeve; 3. a turntable; 31. an adjustment groove; 311. a threaded hole; 32. an adjusting plate; 321. a limiting hole; 33. a roller shaft; 34. a third locking screw; 35. an index plate; 36. a gland; 4. a wheel die holder; 41. a first forming groove; 42. fixing grooves; 43. an installation part; 44. a second positioning hole; 5. a roller; 51. a printer; 52. a first hinge plate; 53. a second hinge plate; 54. a third hinge plate; 55. an operating lever; 56. (ii) a 57. A guide plate; 58. a connecting member; 59. printing a die head; 6. quickly clamping; 7. a hole puncher; 71. a mounting seat; 72. a first hinge plate; 73. a guide plate; 74. a second hinge plate; 75. an operating lever; 76. a third hinge plate; 77. a connecting member; 78. a chuck; 79. punching a hole head; 8. a main shaft; 81. a connecting bond; 82. a first lock nut; 83. a second lock nut; 84. a third lock nut; 85. a bearing compression ring; 86. a first bearing; 87. a second bearing; 88. a second locking screw; 10. a pipe fitting; 101. a first straight line segment; 102. a first curved section; 103. a second straight line segment; 104. a second curved section; 105. a third straight line segment; 106. a third curved section; 107. the fourth straight line segment.

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 or similar 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 illustrative and intended to be illustrative of the invention and are not to be construed as limiting the 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", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered 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, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. 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.

Example 1

As shown in fig. 1-4, a multidirectional multi-angle pipe fitting bending equipment, comprises a workbench 1, a roller 5, a wheel die holder 4, a turntable 3, a driving mechanism 2 for driving the turntable 3 to rotate and a plurality of quick clamps 6 for clamping the pipe fitting 10 tightly, fix the pipe fitting 10 on the front side or the rear side of the arc-shaped end of the wheel die holder 4 through the quick clamps 6, the turntable 3 rotates and is installed above the workbench 1, the wheel die holder 4 is fixedly installed above the workbench 1, the wheel die holder 4 is located above the turntable 3, the roller 5 rotates and is installed above the turntable 3, the turntable 3 drives the roller 5 to rotate around the axis of the arc-shaped end of the wheel die holder 4. The working strip 1 comprises a working panel 11 and a support frame 12, and the support frame 11 is fixedly connected to the bottom plate of the working panel 11.

As shown in fig. 11, the left end of the wheel die holder 4 is a semicircular arc surface, a first forming groove 41 that is recessed inward is provided on the arc surface on the left side of the wheel die holder 4, and a cross-sectional notch of the first forming groove 41 is arc-shaped; fixing grooves 42 which are formed by sinking inwards are respectively formed in the front side surface and the rear side surface of the wheel die holder 4, the section gaps of the two fixing grooves 42 are arc-shaped, the section gaps of the first forming groove 41 and the fixing grooves 42 are the same, the two fixing grooves 42 extend towards the left direction and the right direction and penetrate through the wheel die holder 4, and the two fixing grooves 42 are respectively communicated with the front end and the rear end of the first forming groove 41; all there is installation department 43 protruding on two terminal surfaces in the front and back of wheel die holder 4, and the installation department is located fixed slot 42 top, and a plurality of quick-operation pieces 6 are symmetry fixed mounting respectively at two installation departments 43 tops. The outer circumference of the roller 5 is provided with a second forming groove which is inwards concave, and the section gap of the second forming groove is the same as that of the first forming groove 41.

Before pipe bending, the pipe 10 is inserted between the wheel die holder 4 and the roller 5, after the bending position of the pipe 10 is determined, the pipe 10 is fixed at the fixing groove 42 of the wheel die holder 4 through the quick clamp 6. The structure of the quick clamp 6 can refer to patent documents such as a quick chuck disclosed in CN204843937U and an adjustable quick clamp disclosed in CN 104625996A. In the embodiment, the quick clamp 6 comprises a clamp seat, a pressing handle, a connecting plate, a pressing plate and a pressing head, wherein the clamp seat is fixed at the top of the mounting part, the pressing handle is hinged on the clamp seat, the pressing plate is hinged at one end of the pressing handle, two ends of the connecting plate are respectively hinged with the pressing handle and the pressing plate, and the pressing head is fixed on the pressing plate; when the pipe fitting 10 is fixed, the pressing handle is pressed downwards, so that the pressing plate drives the pressing head to press the pipe fitting 10 between the wheel die seat 4 and the pressing head, and meanwhile, the angle of the pressing plate is locked by the connecting plate; after the pipe fitting is formed, the pressing handle is reversely lifted, so that the pressing plate and the pressing head are driven to act, and the pipe fitting 10 is released.

In this embodiment, as shown in fig. 5 to 8, the apparatus further includes a main shaft 8, a bottom of the main shaft 8 is fixedly mounted on the working panel 11, the turntable 3 is rotatably mounted on the main shaft 8, an axis of the turntable 3 coincides with an axis of the main shaft 8, the main shaft 8 is coaxial with a circular arc surface on a left side of the wheel mold base 4, the wheel mold base 4 is fixedly mounted on the main shaft 8, and the turntable 3 is located below the wheel mold base 4. The main shaft 8 is a stepped shaft, the diameter of the middle part of the main shaft 8 is larger than the diameters of the upper end and the lower end, the main shaft 8 is provided with three shaft shoulders, the sections of the upper side and the lower side of the main shaft 8 are fixedly connected with connecting keys 81, and a convex first positioning hole is formed in the working panel 11; when the main shaft 8 is fixed, the bottom section of the main shaft 8 is inserted into and penetrates through the first positioning hole, the connecting key 81 positioned on the lower side is inserted into the first positioning hole, the shaft shoulder positioned on the lower side of the main shaft 8 is abutted against the top of the working panel 11, and the main shaft 8 is fixed on the working panel 11 through the first locking nut 82; the first lock nut 82 is screwed to the main shaft 8, and the main shaft 8 is fixed to the work panel 11 by screwing the first lock nut 82 from bottom to top. The rotary disc 3 is rotatably mounted: the turntable 3 is rotatably connected with the main shaft 8 through the first bearing 86, the first bearing 86 is installed at a shaft shoulder position in the middle of the main shaft 8, the shaft shoulder of the main shaft 8 is abutted to the bottom of an inner ring of the first bearing 86, the main shaft 8 is sleeved with the bearing compression ring 85, the main shaft 8 is connected with the third locking nut 84 through threads, the bearing compression ring 85 is located between the turntable 3 and the third locking nut 84, and the bearing compression ring 85 is used for limiting axial movement of the turntable 3.

And (3) fixedly mounting the wheel die holder 4: a second positioning hole 44 is formed in the wheel die holder 4, the second positioning hole 44 comprises a through hole and a key groove, the through hole penetrates through the wheel die holder 4, the key groove is formed in the bottom of the wheel die holder 4, the key groove is communicated with the through hole, and a second locking nut 83 is arranged at the top section of the main shaft 8 in a threaded connection mode; the wheel die holder 4 is fixedly arranged on the main shaft 8 through a second locking nut 83 and a connecting key 81, when the wheel die holder 4 is arranged, the wheel die holder 4 is arranged on the main shaft 8 from bottom to top, the main shaft 8 penetrates through a through hole of the second positioning hole 44, the connecting key 81 fixed on the upper side section of the main shaft 8 is inserted into a key groove of the second positioning hole 44 from bottom to top, and a shaft shoulder on the upper side of the main shaft 8 is used for supporting the wheel die holder 4; be equipped with second lock nut 83 on the top section of main shaft 8, second lock nut 83 and main shaft 8 threaded connection, second lock nut 83 is located wheel die holder 4 upside, so fixes wheel die holder 4 on main shaft 8 through second lock nut 83. With the arrangement, the disassembly, assembly and maintenance of the equipment and the replacement of parts are facilitated through the structures such as the nut and the connecting key 81; the pipe fitting die holder 4 is suitable for processing pipe fittings 10 with various specifications in a mode of replacing the die holder. The axis of the main shaft 8 coincides with the axis of the circular arc surface at the left end of the wheel die holder 4. A key groove is formed in the bottom of the wheel die holder 4 and is communicated with the second positioning hole 44, a section, with a connecting key 81, on the upper side of the main shaft 8 is inserted into and penetrates through the second positioning hole 44, the connecting key 81 on the upper side is inserted into the key groove, and the top of the connecting key 81 is abutted against the top of the key groove, so that the wheel die holder 4 is supported on the main shaft 8 and the rotation of the main shaft 8 is limited; the top of the main shaft 8 is connected with a second locking nut 83 in a threaded manner, and the second locking nut 83 is rotated to compress the top of the wheel die holder 4, so that the wheel die holder 4 is fixed on the main shaft 8. According to the arrangement, the spindle 8 is used for limiting the radial movement of the wheel die holder 4, the connecting key 81 and the second locking nut 83 are used for limiting the axial movement of the wheel die holder 4, and the connecting piece is used for limiting the rotation of the wheel die holder 4; meanwhile, through the structures such as the nut and the connecting key 81, the disassembly, the assembly and the maintenance of the equipment and the replacement of parts are facilitated; the method is suitable for processing the pipe fittings 10 with various calibers by replacing the wheel die holder 4. The wheel die holder 4 is fixedly arranged on the main shaft 8, and the axis of the main shaft 8 is superposed with the axis of the arc surface on the left side of the wheel die holder 4. The equipment structure is simplified, so that the installation and the processing are more convenient.

In this embodiment, the top of the turntable 3 is provided with two adjusting grooves 31, the two adjusting grooves 31 are symmetrically arranged, the apparatus further includes an adjusting plate 32, and the adjusting plate 32 is fixed in any one of the adjusting grooves 31 through a first locking screw; the bottom surfaces of the two adjusting grooves 31 are respectively provided with a plurality of threaded holes 311 matched with the first locking screws, so that the distance between the adjusting plate 32 and the wheel die holder 4 can be adjusted in a large range by connecting the first locking screws with the threaded holes 311 at different positions; a limiting hole 321 is formed in the adjusting plate 32, the limiting hole 321 is a stepped hole, the limiting hole 321 penetrates through the adjusting plate 32 from top to bottom, a threaded part of the first locking screw penetrates through the limiting hole 321 to be connected with the threaded hole 311 in the turntable 3, and during locking, the head of the first locking screw is only required to be tightly abutted against the stepped surface of the limiting hole 321, so that the position of the adjusting plate 32 is fixed; before the adjusting plate 32 is completely fixed, the adjusting plate 32 can be moved in a small range, so that the distance between the wheel die holder 4 and the adjusting plate 32 is more accurate; the moving range of the adjusting plate 32 is about the length of the limiting hole 321; furthermore, there are two limiting holes 321, the adjusting plate 32 is fixed on the turntable 3 by two first locking screws, and the roller shaft 33 is located between the two limiting holes 321. When the roller 5 is installed: the roller 5 is rotatably arranged on the roller shaft 33, and the roller shaft 33 is fixed on the adjusting plate 32 through a second locking screw 88; the adjusting plate 32 is provided with a counter bore, the counter bore penetrates through the adjusting plate 32 from bottom to top, and the second locking screw 88 penetrates through the counter bore from bottom to top and is in threaded connection with the roller shaft 33; the roller shaft 33 is a step shaft, the diameter of the bottom of the roller shaft 33 is larger, the roller 5 is rotatably mounted on the roller shaft 33 through two second bearings 87, the two second bearings 87 are arranged in the vertical direction, the inner ring of the second bearing 87 positioned at the lower side is abutted against the shaft shoulder of the roller shaft 33, the top of the roller shaft 33 is provided with a third locking screw 34 in a threaded connection manner, the threaded section of the third locking screw 34 is sleeved with a gland 36, the gland 36 is abutted against the inner ring of the second bearing 87 positioned at the upper side, the third locking screw 34 is screwed, the head of the third locking screw 34 is abutted against the gland, and the roller 5 is further mounted on the roller shaft 33,

in the present embodiment, as shown in fig. 9, the driving mechanism 2 includes a screw 23, two transmission arms 28, and two sliders 26; the lead screw 23 is positive and negative tooth lead screw, the lead screw 23 rotates and sets up in the operating panel 11 top, the lead screw 23 is used for driving two sliders 26 left and right sides direction removal, but two sliders 26's moving direction is opposite, two driving arms 28 articulate respectively at two sliders 26's top through two second articulated shafts 282 with one end, two driving arms 28's the other end articulates in the bottom of carousel 3 through two first articulated shafts 281, two first articulated shafts 281 are located the adjustment tank 31 below respectively with carousel 3 articulated position, distance between two first articulated shafts 281 and the main shaft 8 is the same. The apparatus further comprises a first bearing housing 21, a second bearing housing 22, two feed nuts 25, two guide rods and two linear bearings; the first bearing seat 21 and the second bearing seat 22 are fixedly installed on the top end face of the working panel 11, the first bearing seat 21 is located on the left side of the second bearing seat 22, graphite copper sleeves 29 are installed on the first bearing seat 21 and the second bearing seat 22 respectively, the screw rod 23 is installed on the first bearing seat 21 and the second bearing seat 22 through 29 rotation by two graphites, the two graphite copper sleeves 29 are installed on the first bearing seat 21 and the second bearing seat 22 respectively, the screw rod 23 extends through the second bearing seat 22 rightwards, and a handle 24 is fixedly installed at the right end of the screw rod 23; the thread section of the screw rod 23 is positioned between the first bearing seat 21 and the second bearing seat 22, the thread on the screw rod 23 is divided into two sections, and the two sections of threads are mutually reverse threads; the two feeding nuts 25 are respectively arranged on the two sections of threads of the screw rod 23, and the two feeding nuts 25 are arranged in the left-right direction; the two guide rods 27 are respectively arranged at the front side and the rear side of the screw 23, the right end of the guide rod 27 at the rear side is fixed on the feeding nut 25 at the right side, the guide rod 27 at the rear side extends through the feeding nut 25 at the left side leftwards, the guide rod 27 at the rear side is in sliding connection with the feeding nut at the left side through one linear bearing 251, the left end of the guide rod 27 at the front side is fixedly connected with the feeding nut 25 at the left side, the guide rod 27 at the front side extends through the feeding nut 25 at the right side rightwards, and the guide rod 27 at the front side is in sliding connection with the feeding nut 25 at the right side through the other linear bearing 251. Two slide blocks 26 are located between the two feed nuts 25, the two slide blocks 26 being fixed to two guide rods 27, respectively. Furthermore, the two driving arms 28 are both bent arms, so that the rotation angle of the rotary plate 3 can be increased. When the driving turntable 3 rotates: the hand handle 24 further drives the screw rod 23 to rotate, the screw rod 23 rotates to drive the two feeding nuts 25 to approach or separate from each other, the two feeding nuts 25 respectively drive the two sliding blocks 26 to move together with the guide rod 27, the two sliding blocks 26 drive the two transmission arms 28 to act, and the two transmission arms 28 drive the turntable 3 to rotate through the first hinge rod 281; when the two feed nuts 25 are close to each other, the apparatus is viewed from above, and the rotary table 3 is rotated forward; when the two feed nuts 25 are distanced from each other, the carousel 3 is inverted, looking down on the apparatus.

In this embodiment, the rotary table further comprises an indexing disc 35 with an angle mark, the indexing disc 35 is arc-shaped, and the rotary table 3 is located on the inner side of the indexing disc 35. The indexing disk 35 is at the same height as the rotating disk 3.

In daily life and work, bent pipes with multiple directions and multiple bending angles are often encountered, planes of bending positions of the bent pipes are occasionally parallel to each other, but most planes of the bent pipes have certain included angles. In the present embodiment, as shown in fig. 10, the bent pipe 10 includes a first straight line segment 101, a second straight line segment 103, a third straight line segment 105, and a fourth straight line segment 107; the first straight line section 101 is vertically erected, the bottom of the first straight line section 101 is connected with a second straight line section 103 through a first bent section 102, the second straight line section 103 points to the right, the other end of the second straight line section 103 is connected with a third straight line section 105 through a second bent section 104, the third straight line section 105 points to the right front, the other end of the third straight line section 105 is connected with a fourth straight line section 107 through a third bent section 106, and the fourth straight line section 107 points to the right; the same plane where the center lines of the first straight line segment 101, the first bent segment 102 and the second straight line segment 103 are located is a first plane; the same plane where the center lines of the second straight line section 103, the second bending section 104 and the third straight line section 105 are located is a second plane, and the same plane where the center lines of the third straight line section 105, the third bending section 106 and the fourth straight line section 107 are located is a third plane; the first plane, the second plane and the third plane are not parallel to each other and any two planes have included angles.

Taking the pipe 10 described in this embodiment as an example, the bending process of the pipe 10 is as follows: as shown in fig. 1 and 2, when the pipe 10 is bent for the first time, the pipe 10 is inserted between the roller 5 and the die holder 4, and after the bending position of the pipe 10 is determined, the pipe 10 is fixed on the die holder 4 by using the quick clamp 6; the driving mechanism 2 drives the turntable 3 to rotate clockwise, the turntable 3 rotates to drive the roller 5 to move around the main shaft 8, the roller 5 pushes the pipe 10 when moving, the pipe 10 is bent backwards along the left end of the wheel die seat 4, and the pipe 10 is bent for the first time; when the bending angle is reached, the rotary disc 3 is driven to rotate anticlockwise, so that the roller 5 is reset, the quick clamp 6 is opened to take out the pipe fitting 10 which is bent for one time, the first straight line segment 101 and the first bending segment 102 are molded, and a first plane where the first straight line segment 101, the first bending segment 102 and the second straight line segment 103 are located is determined according to the center lines of the first straight line segment 101, the first bending segment 102 and the second straight line segment 103; as shown in fig. 3, when the pipe 10 is bent for the second time, the adjusting plate 32 is removed from the current adjusting groove 31, the adjusting plate 32 is installed in another adjusting groove 31 together with the roller 5, the pipe 10 is rotated to point the first straight line 101 upward, the rest positions of the pipe 10 are inserted into the gap between the roller 5 and the rear side of the wheel die holder 4, the position of the second bending section 104 is determined, fixing the pipe 10 by using the quick clamp 6, driving the turntable 3 to rotate clockwise, driving the roller 5 to move by the turntable 3, pushing the pipe 10 by the roller 5 to bend forward gradually along the left end of the wheel die seat 4, after the bending requirement is met, the driving turntable 3 rotates anticlockwise to reset the roller 5, the quick clamp 6 is opened, the pipe fitting 10 after the second bending is taken out, at the moment, the second straight line section 103 and the second bending section 104 are formed, determining a second plane of the second straight line section 103, the second bending section 104 and the third straight line section 105 according to the central lines of the second straight line section, the second bending section and the third straight line section; as shown in fig. 4, when the pipe 10 is bent for the third time, the adjusting plate 32 and the roller 5 are removed from the current adjusting groove 31, and the pipe 10 is installed in another adjusting groove 31, and then the remaining section of the pipe 10 is inserted into the gap between the die holder 4 and the roller 5, after the position of the third bending section 106 is determined, the pipe 10 is fixed on the die holder 4 by using the quick clamp 6, the rotary disc 3 is driven to rotate counterclockwise, the rotary disc 3 drives the roller 5 to move, the roller 5 pushes the pipe 10 to bend backward from the left side of the die holder 4, the rotary disc 3 is driven to rotate clockwise after the bending requirement is met, the roller 5 is reset, the quick clamp 6 is opened, the pipe 10 is taken out, the third plane where the pipe 10 is located is driven according to the center lines of the third straight line section 105, the third bending section 106, and the fourth straight line section 107, and at this time, the pipe 10 completes multidirectional and multi-angle bending molding on the same device.

Example 2

As shown in fig. 12 to 14, a punching apparatus based on the pipe bending apparatus of embodiment 1 includes a punch 7, the punch 7 is fixedly installed in any one of the adjustment grooves 31 by a first locking screw; the puncher 7 comprises a mounting seat 71 and a punching head 79 for opening forming, the mounting seat 71 is in sliding fit with the adjusting groove 31, a plurality of locking holes are formed in the mounting seat 71, and first locking screws penetrate through the locking holes to be connected with threaded holes in the adjusting groove 31, so that the puncher 7 is fixed in the adjusting groove; when the position of the puncher 7 needs to be adjusted, the puncher 71 is fixed at the thread groove 311 at other positions through a first locking screw; perforating head 79 is slidably disposed above mount 71, with perforating head 79 pointing toward the axis of spindle 8. So set up, the interval between adjustable hole puncher 7 and the wheel die seat 4 is changed the wheel die seat of different specifications, is convenient for handle the pipe fitting of different specifications. Further, a guide plate 73 and a first hinge plate 72 are fixedly mounted at the top of the mounting seat 71, the guide plate 73 is located between the first hinge plate 73 and the wheel die holder 4, a second hinge plate 74 is hinged to the first hinge plate 72, one end of the second hinge plate 74 is fixedly connected with an operating rod 75, the operating rod 75 tilts upwards in an initial state, the other end of the second hinge plate 74 is hinged to a third hinge plate 76, the third hinge plate 76 is located between the second hinge plate 74 and the guide plate 73, the other end of the third hinge plate 76 is hinged to a connecting piece 77, the connecting piece 77 penetrates through the guide plate 73 and is in sliding fit with the guide plate, and a drilling head 79 is fixedly mounted at the other end of the connecting piece 77. Preferably, a chuck 78 for holding and fixing the drilling head 79 is attached to the connecting member 77, and as a specific mechanism of the chuck 78, patent documents such as a drill chuck of an electric drill of publication No. CN211564618U and a drill chuck of publication No. CN206811191U can be referred. Preferably, the punch head 79 is wedge-shaped or tapered due to the open end. The punching process of the punching head 79 is as follows: the operating rod 75 is pressed downwards, the operating rod 75 drives the second hinge plate 74 to rotate around a hinge point of the second hinge plate 74 and the first hinge plate 72, the other end of the second hinge plate 74 drives the third hinge plate 76 to move towards one side of the wheel die base 4 and tilt upwards, the third hinge plate 76 pushes the connecting piece 77 to approach the wheel die base 4, the connecting piece 77 drives the clamping head 78 to approach the wheel die base 4, the clamping head 78 drives the punching head 79 to approach the wheel die base 4, and the punching head 79 abuts against a pipe and holes are formed in the pipe.

In other embodiments, the connector 77 is a motor, the chuck 78 is mounted on the output end of the motor, the chuck head is a drill, and the drill is mounted on the chuck 78.

In other embodiments, the connecting member 77 is a power push rod fixed on the mounting seat, the clamping head 78 is installed at the extending end of the power push rod, and the clamping head 78 clamps the fixed punching head 79.

Example 3.

The method for punching the bent pipe in the embodiment 2 comprises the following steps:

step 1): fixing the puncher 7 on the rotary table 3;

step 2): the elbow is fixed on the front side or the rear side of the wheel die holder 4 through the quick clamp 6;

step 3): the driving mechanism 2 drives the turntable to move the puncher 7 to a required position; the swing handle 24 drives the screw rod 23 to rotate, the screw rod 23 drives the feed nut 25 to move relatively, the feed nut 25 drives the two sliding blocks 26 to move relatively through the guide rod 27, the two sliding blocks 26 drive the turntable 3 to rotate through the transmission arm 28, and the turntable 3 drives the puncher 7 to move for a proper angle and then stops the screw rod 23 to rotate.

Step 4): driving the puncher 7 to open a hole on the bent pipe; the operating rod 75 is pressed downwards, the operating rod 75 drives the second hinge plate 74 to rotate around a hinge point of the second hinge plate 74 and the first hinge plate 72, the other end of the second hinge plate 74 drives the third hinge plate 76 to move towards one side of the wheel die base 4 and tilt upwards, the third hinge plate 76 pushes the connecting piece 77 to approach the wheel die base 4, the connecting piece 77 drives the clamping head 78 to approach the wheel die base 4, the clamping head 78 drives the punching head 79 to approach the wheel die base 4, and the punching head 79 abuts against a pipe and holes are formed in the pipe.

Step 5): and repeating the step 2) and the step 3) until the punching is finished.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., 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.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.