Auxiliary device for pipe bending machine

Abstract

The utility model relates to an auxiliary device for a pipe bender, which comprises a handle, a winding disc fixedly mounted on the handle and a guide disc arranged on the winding disc, a pressing handle is rotatably connected to the winding disc, a bending die matched with the guide disc is arranged on the lower end face of the pressing handle, a positioning and clamping mechanism is further arranged on the handle, and the positioning and clamping mechanism is connected with the pressing handle. The positioning and clamping mechanism comprises a first driving part, a second driving part arranged on the first driving part and a clamping part arranged on the second driving part, the first driving part is used for driving the second driving part to move in the horizontal direction, and the second driving part is used for driving the positioning and clamping mechanism to move in the vertical direction. The clamping piece comprises an installation disc and a clamp arranged on the installation disc. By means of the auxiliary device for the pipe bending machine, when the pipe bending machine bends the pipe, clamping of the pipe is more stable, and therefore it is guaranteed that the part which does not need to be pressed is in the horizontal state in the bending process.

Description

Technical Field

[0001] The utility model relates to the field of bent pipes, and specifically to an auxiliary device for a pipe bender. Background Art

[0002] There are various types of pipe benders. Pipe benders that complete pipe cutting through hydraulic pressure or electricity generally belong to semi-automatic or automatic pipe benders, and pipe benders that complete pipe cutting manually are generally called manual pipe benders. Manual pipe benders have the characteristics of being easy to carry, low in price, and simple in structure. Classified according to the pipe bending ability and bending range of manual pipes, they include ordinary pipe benders and micro pipe benders. A micro pipe bender is a device used to bend very small-sized pipes, such as copper micro pipes, aluminum micro pipes, etc. The sizes of such pipes are very small, and using a micro pipe bender can complete the bending of pipes very conveniently and quickly.

[0003] Existing micro pipe benders generally consist of a pressing handle, a bending die, and a guiding disc. The pipe is placed between the bending die and the guiding groove of the guiding disc. By pressing the pressing handle, the bending die is driven to rotate or press down to complete the bending of the pipe. However, when bending the pipe, it is necessary to ensure that the unbent part of the pipe is in a horizontal state, that is, it is perpendicular to the radial direction of the guiding groove. This is to prevent the part of the pipe that needs to be pressed down by the bending die from not contacting the bending die due to the inclination of the pipe, resulting in the failure of pipe bending. In the prior art, the way to solve the above problem is to hold the pipe by hand to prevent it from rotating. However, holding the pipe by hand to prevent it from rotating is not stable enough. Moreover, when using a micro pipe bender, in most cases, it is also necessary to hold the handle firmly with one hand and use the other hand to press down the pressing handle. At this time, the pipe cannot be held by hand. To solve the above problems, an auxiliary device for a pipe bender is proposed. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an auxiliary device for a pipe bender to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An auxiliary device for a pipe bender includes a handle, a rotating disc fixedly installed on the handle, and a guiding disc arranged on the rotating disc. A pressing handle is rotatably connected to the rotating disc. A bending die matching the guiding disc is arranged on the lower end surface of the pressing handle. A positioning and clamping mechanism is also arranged on the handle. The positioning and clamping mechanism includes a first driving member, a second driving member arranged on the first driving member, and a clamping member arranged on the second driving member. The first driving member is used to drive the second driving member to move in the horizontal direction, and the second driving member is used to drive the positioning and clamping mechanism to move in the vertical direction;

[0007] The clamping member includes a mounting disk and a fixture disposed on the mounting disk. The fixture is provided with a clamping hole opposite to the guiding disk. The fixture is used for clamping a pipe to ensure that the pipe maintains a horizontal state on the guiding disk during bending.

[0008] Further, the first driving member includes a base, a first lead screw mounted on the base, a first knob connected to one end of the first lead screw, and a first moving seat threadedly connected to the first lead screw. The first lead screw is used for driving the first moving seat to move along the length direction of the first lead screw.

[0009] Further, the second driving member includes a mounting frame. The mounting frame is disposed on the upper end surface of the first moving seat and moves along with the movement of the first moving seat.

[0010] Further, the second driving member further includes a second lead screw disposed on the mounting frame. A second moving seat is threadedly connected to the second lead screw, and a connecting seat is detachably connected to the second moving seat.

[0011] Further, the clamping member further includes an extension plate. The extension plate is disposed on the connecting seat and is used for connecting the mounting disk and the second moving seat, and for ensuring that the fixture extends beyond the mounting frame in the vertical direction.

[0012] Further, a plurality of guiding grooves are disposed on the guiding disk. The clamping hole is used for clamping a pipe and for maintaining the pipe on one side of the guiding groove in a horizontal state.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The provided positioning and clamping mechanism can clamp the pipe more stably during the bending of the pipe bender, so as to ensure that the part that does not need to be pressed is in a horizontal state during the bending process, and can also clamp pipes of various sizes. Description of the Drawings

[0014] Figure 1 It is a schematic structural view of the auxiliary device for a pipe bender.

[0015] Figure 2 It is an exploded view of the positioning and clamping mechanism of the auxiliary device for a pipe bender.

[0016] Figure 3 It is a side view of the clamping member of the auxiliary device for a pipe bender.

[0017] In the figure: 1. Handle; 2. Pressing handle; 3. Rotating disk; 4. Rotating shaft; 5. Bending die; 6. Guide disk; 7. Positioning and clamping mechanism; 71. First lead screw; 72. First knob; 73. First moving seat; 74. Mounting bracket; 75. Second lead screw; 76. Second knob; 77. Second moving seat; 78. Connecting seat; 79. Extension plate; 710. Mounting plate; 711. Iris disk; 712. Base; 713. Arc blade; 714. Rotating handle; 715. Positioning plate. Detailed implementation manners

[0018] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the drawings denote elements having the same or similar functions. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0019] The special term "exemplary" here means "serving as an example, an embodiment or an illustration". Any embodiment described as "exemplary" here does not have to be construed as superior to or better than other embodiments.

[0020] In addition, for better illustration of the present application, numerous specific details are given in the following detailed embodiments. Those skilled in the art should understand that the present application can also be implemented without some specific details. In some instances, methods, means and elements well known to those skilled in the art are not described in detail so as to highlight the gist of the present application.

[0021] Example 1, please refer to Figures 1 to 3 As shown in the structure, in the embodiment of the present utility model, an auxiliary device for a pipe bender includes a handle 1, a rotating disk 3 fixedly installed on the handle 1, and a guide disk 6 arranged on the rotating disk 3. A pressing handle 2 is rotatably connected to the rotating disk 3. A bending die 5 matching the guide disk 6 is arranged on the lower end surface of the pressing handle 2. A positioning and clamping mechanism 7 is also arranged on the handle 1. The positioning and clamping mechanism 7 includes a first driving member, a second driving member arranged on the first driving member, and a clamping member arranged on the second driving member. The first driving member is used to drive the second driving member to move in the horizontal direction, and the second driving member is used to drive the positioning and clamping mechanism 7 to move in the vertical direction;

[0022] The clamping member includes a mounting plate 710 and a clamp arranged on the mounting plate 710. A clamping hole opposite to the guide disk 6 is arranged on the clamp. The clamp is used to clamp the pipe to ensure that the pipe maintains a horizontal state on the guide disk 6 during bending.

[0023] In this embodiment, the winding disk 3 is arranged on the handle 1 by means of screw connection. A rotating shaft 4 is arranged on the winding disk 3, and the pressing handle 2 is rotatably connected to the rotating shaft 4. The bending die 5 is installed below the pressing handle 2 by means of screw connection. The guiding disk 6, which is also arranged on the winding disk 3, is located below the bending die 5, and the two are arranged oppositely. When bending a pipe, the pipe is placed between the guiding disk 6 and the bending die 5. By pressing down the pressing handle 2, the pressing handle 2 rotates, applying a radial pressure to the pipe, thereby completing the bending of the pipe.

[0024] Further, the first driving member includes a base 712, a first lead screw 71 mounted on the base 712, a first knob 72 connected to one end of the first lead screw 71, and a first moving seat 73 threadedly connected to the first lead screw 71. The first lead screw 71 is used to drive the first moving seat 73 to move along the length direction of the first lead screw 71.

[0025] In this embodiment, the base 712 is integrally formed on the end face of the handle 1, on one side of the guiding disk 6. A placement groove is formed on the base 712, and the first lead screw 71 is mounted in the placement groove. A through hole for the first lead screw 71 to pass through is also formed on the base 712. The first lead screw 71 passes through the through hole and is connected to the first knob 72. A bearing is arranged at the through hole, and the first lead screw 71 is key-connected to the bearing. One end of the first lead screw 71 away from the first knob 72 is rotatably connected to the base 712 through a bearing.

[0026] Further, the second driving member includes a mounting bracket 74. The mounting bracket 74 is arranged on the upper end face of the first moving seat 73, and the mounting bracket 74 moves along with the movement of the first moving seat 73.

[0027] Further, the second driving member further includes a second lead screw 75 arranged on the mounting bracket 74. A second moving seat 77 is threadedly connected to the second lead screw 75, and a connecting seat 78 is detachably connected to the second moving seat 77.

[0028] In this embodiment, a second knob 76 is connected to one end of the second lead screw 75. An empty groove is formed on the mounting bracket 74, and the second knob 76 is located in the empty groove, facilitating the rotation of the second knob 76. In addition, the second driving member is similar to the first driving member, and both drive the movement of the nut seat through the rotation of the lead screw, which will not be elaborated here.

[0029] Further, the clamping member further includes an extension plate 79. The extension plate 79 is arranged on the connecting seat 78. The extension plate 79 is used to connect the mounting disk 710 and the second moving seat 77, and is used to ensure that the fixture extends beyond the mounting bracket 74 in the vertical direction.

[0030] Further, a plurality of guiding grooves are arranged on the guiding disk 6. The clamping holes are used to clamp the pipe and to keep the pipe located on one side of the guiding grooves in a horizontal state.

[0031] In this embodiment, an exemplary fixture is proposed, which is an iris mechanism and includes an iris disk 711, a plurality of arc-shaped blades 713, a cam, and a turning handle 714. When the turning handle 714 rotates, it will drive the cam to rotate, thereby driving the plurality of arc-shaped blades 713 to rotate. When the plurality of arc-shaped blades 713 are opened, a through hole is formed in the middle part of each arc-shaped blade 713, which is the clamping hole. As the arc-shaped blades 713 rotate, the size of the clamping hole continuously changes. According to the sizes of a plurality of guide grooves, among a large number of sizes of clamping holes, a clamping hole with the same size as the guide groove is selected. A positioning plate 715 is arranged on the mounting plate 710, and a first positioning hole is arranged on the positioning plate 715. A second positioning hole opposite to the first positioning hole is opened on the turning handle 714. According to the number of sizes of the selected clamping holes, the same number of positioning plates 715 are arranged. The positioning plate 715 at a certain position is opposite to a clamping hole of a certain size. When clamping a pipe with a clamping hole of a certain size, the turning handle 714 is rotated to the corresponding positioning plate 715, and a bolt is screwed into the first fixing hole and the second fixing hole so that the turning handle 714 cannot rotate. Before bending the pipe, the pipe is passed through the clamping hole and placed on the guide groove, and the turning handle 714 is rotated until the pipe is clamped. The turning handle 714 and the corresponding positioning plate 715 at this time are fixedly connected by bolts. At this time, when the pipe is bent, the pipe will not tilt.

[0032] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0033] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An auxiliary device for a pipe bender, comprising a handle, a winding disk fixedly mounted on the handle, and a guiding disk arranged on the winding disk. A pressing handle is rotatably connected to the winding disk, and a bending die matching the guiding disk is arranged on the lower end surface of the pressing handle, characterized in that, A positioning and clamping mechanism is further provided on the handle. The positioning and clamping mechanism includes a first driving member, a second driving member provided on the first driving member, and a clamping member provided on the second driving member. The first driving member is used to drive the second driving member to move in the horizontal direction, and the second driving member is used to drive the positioning and clamping mechanism to move in the vertical direction; The clamping member includes a mounting disc and a clamp provided on the mounting disc. A clamping hole opposite to the guiding disc is provided on the clamp. The clamp is used to clamp the pipe to ensure that the pipe maintains a horizontal state on the guiding disc during bending.

2. The auxiliary device for a pipe bender according to claim 1, characterized in that, The first driving member includes a base, a first lead screw mounted on the base, a first knob connected to one end of the first lead screw, and a first moving seat threadedly connected to the first lead screw. The first lead screw is used to drive the first moving seat to move along the length direction of the first lead screw.

3. The auxiliary device for a pipe bender according to claim 2, characterized in that, The second driving member includes a mounting frame. The mounting frame is provided on the upper end surface of the first moving seat, and the mounting frame moves along with the movement of the first moving seat.

4. An auxiliary device for a pipe bender according to claim 3, characterized in that, The second driving member further includes a second lead screw provided on the mounting frame. A second moving seat is threadedly connected to the second lead screw, and a connecting seat is detachably connected to the second moving seat.

5. The auxiliary device for a pipe bender according to claim 4, wherein The clamping member further includes an extension plate. The extension plate is provided on the connecting seat. The extension plate is used to connect the mounting disc and the second moving seat, and is used to ensure that the clamp extends beyond the mounting frame in the vertical direction.

6. The auxiliary device for a pipe bender according to claim 5, wherein, A plurality of guiding grooves are provided on the guiding disc. The clamping hole is used to clamp the pipe and is used to maintain the pipe on one side of the guiding groove in the clamping hole in a horizontal state.

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