Simple bending machine

Abstract

The utility model discloses a simple bending machine. The simple bending machine comprises a base; the sliding assembly comprises a sliding seat and a sliding positioning mechanism, the sliding seat is in sliding connection with the base, and the sliding positioning mechanism is used for positioning the sliding seat; the rotating assembly comprises a rotating shaft, a chuck and a rotary positioning mechanism, the rotating shaft is rotationally connected with the sliding seat, the chuck is used for clamping a workpiece, and the rotary positioning mechanism is used for positioning the rotating shaft; the bending assembly comprises a fixed bending die and a movable bending die, a first bending groove is formed in the fixed bending die, the movable bending die is rotationally connected with the fixed bending die, and a second bending groove is formed in the fixed bending die. According to the simple bending machine, the workpiece is clamped and rotated through the rotating assembly, the bending position is controlled through the sliding assembly, the workpiece is bent through the bending assembly, bending can be completed manually, use is convenient, the manufacturing cost is low, the distance and the angle can be conveniently controlled according to the bending requirement, the workpiece is located and then bent, and the bending efficiency is improved. And the bending precision can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bending equipment, in particular to a simple bending machine. Background Art

[0002] Long strips of workpieces such as long tubes or long thin rods are commonly used components. Some long strips need to be bent to form a certain angle to meet the use requirements. They are often bent by bending equipment in production. Some existing bending equipment is manual bending, but there are problems such as inconvenience in use and low bending accuracy; other bending equipment is electric bending, which has high bending accuracy but high price. Therefore, those skilled in the art hope to have a simple bending machine that is easy to use, has high bending accuracy and is low cost. Utility Model Content

[0003] The main purpose of the utility model is to provide a simple bending machine, aiming to solve the technical problems in the prior art that manual bending equipment is not convenient to use and has low bending precision, while electric bending equipment is relatively expensive.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a simple bending machine, comprising:

[0005] Pedestal;

[0006] A sliding assembly, comprising a sliding seat and a sliding positioning mechanism, wherein the sliding seat is slidably connected to the base along the front-to-back direction, the sliding positioning mechanism is connected to the sliding seat and the base, the sliding positioning mechanism is used to position the front-to-back position of the sliding seat on the base, the base is provided with a length scale, and the sliding seat is provided with a length indicating portion capable of indicating the length scale;

[0007] The rotating assembly comprises a rotating shaft, a chuck and a rotating positioning mechanism, the rotating shaft is rotatably connected with the slide and axially fixed, the axial direction of the rotating shaft extends in the front-to-back direction, the chuck is arranged at the front side of the rotating shaft, the middle part of the rotating shaft is provided with a first through hole for passing a workpiece, the first through hole is coaxially arranged with the rotating shaft, the first through hole passes through the rotating shaft front and back and passes through the middle part of the chuck, the chuck is used to clamp the workpiece, the rotating positioning mechanism is connected with the slide and the rotating shaft, the rotating positioning mechanism is used to locate the rotation angle of the rotating shaft in the slide, the rear side of the rotating shaft is provided with a rotating scale, and the slide is provided with a rotating indicating portion capable of indicating the rotating scale;

[0008] A bending assembly is arranged on the front side of the base, and the bending assembly includes a fixed bending die and a movable bending die. The fixed bending die is fixedly connected to the base, and a first bending groove extending in an arc shape is provided on the outer side surface of the fixed bending die, and the head end of the first bending groove is directly opposite to the first through hole. The movable bending die is arranged on the outer side of the fixed bending die, and the movable bending die is rotatably connected to the fixed bending die. A second bending groove is provided on the inner side surface of the fixed bending die, and the first bending groove and the second bending groove together form a bending space that can accommodate the cross-section of a workpiece. An angle scale is provided on the upper side of the fixed bending die, and an angle indicating portion that can indicate the angle scale is provided on the movable bending die.

[0009] During bending, the straight long strip workpiece to be bent is inserted into the first through hole from the rear side and extends forward through the chuck, and the workpiece is clamped by the chuck, and the rotation angle of the rotating shaft and the workpiece is locked by the rotation positioning mechanism; then the sliding assembly, the rotating assembly and the workpiece are moved forward so that the end of the workpiece enters the first bending groove of the fixed bending die and the second bending groove of the movable bending die; then the required distance is moved forward according to the position on the workpiece that needs to be bent, and the moving distance can be conveniently known through the length scale and the length indicator, and the front and rear positions of the movable sliding assembly, the rotating assembly and the workpiece are locked by the sliding positioning mechanism; then the movable bending die is manually rotated, and the workpiece is deformed in the first bending groove and the second bending groove under the pressure of the movable bending die to achieve the bending of the workpiece, and the bending angle can be conveniently known through the angle scale and the angle indicator; then the sliding positioning mechanism is unlocked, and the workpiece continues to move forward to the distance of the next bending position. When it is necessary to form an angle with the previous bending position, the rotation positioning mechanism can be unlocked, and the rotating shaft and the workpiece are rotated to the required rotation angle, and the rotation angle can be conveniently known through the rotation scale and the rotation indicator.

[0010] This simple bending machine clamps and rotates the workpiece through a rotating component, controls the bending position through a sliding component, and bends the workpiece through a bending component. The bending can be completed manually, is convenient to use, has a low production cost, and can conveniently control the distance and angle according to the bending requirements, and can position the workpiece before bending, which can improve the bending accuracy.

[0011] Preferably, the base includes a slide rail, an end plate and a side plate, the slide rail and the side plate both extend in the front-to-back direction, the two end plates are respectively located at the front and rear sides of the slide rail, the front end of the slide rail and the front end of the side plate are fixed to the end plate located on the front side, the rear end of the slide rail and the rear end of the side plate are fixed to the end plate located on the rear side, the slide seat is slidably connected to the slide rail, the side plate is arranged on the left or right side of the slide rail, the sliding positioning mechanism is connected to the slide seat and the side plate, the length scale is arranged on the side plate, and the fixed bending mold is fixedly connected to the end plate located on the front side.

[0012] Preferably, the sliding positioning mechanism is a quick clamp, the quick clamp is fixed on the slide seat, and the movable jaw of the quick clamp is arranged corresponding to the position of the side plate. The structure of using the quick clamp is simple, when the movable jaw of the quick clamp is pressed on the side plate, the slide seat and the side plate are relatively fixed to realize the positioning of the slide seat, and when the movable jaw of the quick clamp is released, the slide seat can slide.

[0013] Preferably, the side panel is arranged vertically, and a horizontal plate extends from the slide to one side of the side panel, and a mounting plate and a limit plate are provided on the lower side of the horizontal plate, and the mounting plate and the limit plate are respectively arranged on the left and right sides of the side panel, and the mounting plate is arranged on the side of the side panel away from the slide, and the quick clamp is fixed on the mounting plate, and the movable clamp of the quick clamp is arranged corresponding to the position of the limit plate.

[0014] Since the side plate may be deformed when the movable jaw of the quick clamp is pressed on the side plate, the limit plate can be set to limit the deformation of the side plate when it is pressed, so as to avoid the deformation of the length scale after the side plate is deformed under pressure, which affects the precision control.

[0015] Preferably, the length scale is arranged on a side of the side plate away from the slide seat, so that it is convenient for operators to check.

[0016] Preferably, the sliding seat is provided with a second through hole running through the front and rear, the rotating shaft is rotatably connected to the second through hole, the rotation positioning mechanism includes a positioning screw hole and a positioning top screw, the positioning screw hole is provided on the sliding seat, the positioning screw hole is connected to the second through hole, the positioning top screw is threadedly connected to the positioning screw hole, and the positioning top screw can be pressed against the rotating shaft to achieve positioning.

[0017] When the positioning screw is locked, the positioning screw can be pressed against the rotating shaft, so that the rotating shaft cannot rotate, thereby realizing the rotation positioning of the rotating shaft; when the positioning screw is loosened, the positioning screw does not contact the rotating shaft, and the rotating shaft can rotate, and the structure is relatively simple.

[0018] Preferably, a scale plate is fixed to the rear end of the rotating shaft, and the rotation scale is arranged on the scale plate. The scale plate can be convenient for operators to check.

[0019] Preferably, the bending assembly also includes a tube clamping member, which is located on the rear side of the fixed bending die and the movable bending die, and the tube clamping member is connected to the fixed bending die so as to be rotatable up and down. A clamping groove with an opening facing downward is provided on the lower side of the tube clamping member, and the clamping groove is provided on the outer side of the head end of the first bending groove.

[0020] When the workpiece enters the first bending groove, the clamping piece can be rotated downward to clamp the workpiece through the clamping groove, so that the workpiece remains relatively fixed at the head end of the first bending groove, limiting the outward deformation of the workpiece during bending and improving the bending accuracy; when the bending is completed, the clamping piece can be rotated upward to open the clamping piece, so as to facilitate the removal of the workpiece.

[0021] Preferably, the movable bending die is provided with a rotating handle, and by holding the rotating handle, the movable bending die can be rotated with less effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 It is a structural schematic diagram of the utility model from another angle;

[0025] Figure 3 for Figure 1 A partial enlarged view of the middle A;

[0026] Figure 4 for Figure 2 A partial enlarged view of point C in the middle;

[0027] Figure 5 for Figure 1 A partial enlarged view of point B in the middle;

[0028] Figure 6 It is a schematic diagram of the structure of the pipe clamp in the bending assembly of the utility model when it is opened upward;

[0029] Figure 7 for Figure 2 A partial enlarged view of point D in the middle;

[0030] Figure 8 It is a structural schematic diagram of the utility model when the workpiece to be bent passes through the first through hole and enters the first bending groove;

[0031] Fig. 9 It is a schematic diagram of the local structure when the movable bending die bends the workpiece in the utility model;

[0032] Fig.10 It is a schematic diagram of the local structure when the workpiece rotates a certain angle in the utility model.

[0033] In the accompanying drawings: 11-slide rail, 12-end plate, 13-side plate, 131-length scale, 2-sliding assembly, 21-slide seat, 23-length indicator, 24-rotation indicator, 25-quick clamp, 251-movable clamp, 26-mounting plate, 27-limiting plate, 3-rotation assembly, 31-rotating shaft, 311-first through hole, 32-chuck, 33-dial, 331-rotation scale, 34-positioning top screw, 4-bending assembly, 41-fixed bending die, 411-first bending groove, 412-angle scale, 42-movable bending die, 421-second bending groove, 422-angle indicator, 43-tube clamp, 431-slot, 44-rotation handle, 5-workpiece.

[0034] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0036] It should be noted that if the embodiments of the present invention involve directional indications, such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0037] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of technical personnel in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0038] like Figures 1 to 10 As shown, a simple bending machine includes a base, a sliding component 2, a rotating component 3 and a bending component 4.

[0039] The sliding assembly 2 includes a slide 21 and a sliding positioning mechanism. The slide 21 is slidably connected to the base along the front-to-back direction. The sliding positioning mechanism is connected to the slide 21 and the base. The sliding positioning mechanism is used to position the front-to-back position of the slide 21 on the base. The base is provided with a length scale 131, and the slide 21 is provided with a length indicating portion 23 that can indicate the length scale 131.

[0040] Reference Figure 3 and Figure 4 The rotating assembly 3 includes a rotating shaft 31, a chuck 32 and a rotation positioning mechanism. The rotating shaft 31 is rotationally connected to the slide 21 and axially fixed. The axial direction of the rotating shaft 31 extends in the front-to-back direction. The chuck 32 is arranged at the front side of the rotating shaft 31. The middle part of the rotating shaft 31 is provided with a first through hole 311 for passing the workpiece 5. The first through hole 311 is coaxially arranged with the rotating shaft 31. The first through hole 311 penetrates the rotating shaft 31 and the middle part of the chuck 32 from front to back. The chuck 32 is used to clamp the workpiece 5. The rotation positioning mechanism is connected with the slide 21 and the rotating shaft 31. The rotation positioning mechanism is used to locate the rotation angle of the rotating shaft 31 in the slide 21. The rear side of the rotating shaft 31 is provided with a rotation scale 331. The slide 21 is provided with a rotation indicating portion 24 capable of indicating the rotation scale 331. The chuck 32 can adopt an existing drill chuck 32, and the clamping or loosening of multiple clamping petals can be controlled by rotation.

[0041] Reference Figures 5 to 7 The bending assembly 4 is arranged on the front side of the base, and the bending assembly 4 includes a fixed bending die 41 and a movable bending die 42. The fixed bending die 41 is fixedly connected to the base, and an arc-shaped first bending groove 411 is provided on the outer side of the fixed bending die 41. The head end of the first bending groove 411 is directly opposite to the first through hole 311 and is tangent to the first through hole 311. The movable bending die 42 is arranged on the outer side of the fixed bending die 41, and the movable bending die 42 is rotatably connected to the fixed bending die 41. A second bending groove 421 is provided on the inner side surface of the fixed bending die 41. The first bending groove 411 and the second bending groove 421 together form a bending space that can accommodate the cross-section of the workpiece 5. An angle scale 412 is provided on the upper side of the fixed bending die 41, and an angle indicating portion 422 that can indicate the angle scale 412 is provided on the movable bending die 42. During bending, the workpiece 5 is in the bending space formed by the first bending groove 411 and the second bending groove 421. As the movable bending die 42 rotates, the second bending groove 421 presses the workpiece 5 to bend, and the contact position between the second bending groove 421 and the workpiece 5 changes along the first bending groove 411, so that the workpiece 5 deforms along with the first bending groove 411. The arc-shaped extension bending radius of the first bending groove 411 determines the bending radius of the bending position of the workpiece 5, and different fixed bending dies 41 and movable bending dies 42 can be used according to different requirements.

[0042] When bending, the straight long workpiece 5 to be bent is inserted into the first through hole 311 from the rear side and extends forward through the chuck 32, and the workpiece 5 is clamped by the chuck 32, and the rotation angle of the rotating shaft 31 and the workpiece 5 is locked by the rotation positioning mechanism; then the sliding assembly 2, the rotating assembly 3 and the workpiece 5 are moved forward, so that the end of the workpiece 5 enters the first bending groove 411 of the fixed bending die 41 and the second bending groove 421 of the movable bending die 42, referring to Figure 8 ; Then, according to the position on the workpiece 5 that needs to be bent, the required distance is moved forward, and the moving distance can be easily known through the length scale 131 and the length indicator 23, and the front and rear positions of the movable sliding assembly 2, the rotating assembly 3 and the workpiece 5 are locked by the sliding positioning mechanism; then, the movable bending die 42 is manually rotated, and the workpiece 5 is deformed in the first bending groove 411 and the second bending groove 421 under the pressure of the movable bending die 42, referring to Fig. 9 , the workpiece 5 is bent, and the bending angle can be easily known through the angle scale 412 and the angle indicator 422; then the sliding positioning mechanism is unlocked, and the workpiece 5 continues to move forward to the next bending position. When it is necessary to form an angle with the previous bending position, that is, to form a three-dimensional space bending workpiece 5, the rotation positioning mechanism can be unlocked, and the rotating shaft 31 and the workpiece 5 can be rotated to the required rotation angle. Fig.10 The rotation angle can be easily known through the rotation scale 331 and the rotation indicator 24.

[0043] The simple bending machine clamps and rotates the workpiece 5 through the rotating component 3, controls the bending position through the sliding component 2, and bends the workpiece 5 through the bending component 4. The bending can be completed manually, is convenient to use, has a low manufacturing cost, and can conveniently control the distance and angle according to the bending requirements, and position the workpiece 5 before bending, which can improve the bending accuracy.

[0044] In some specific embodiments, the base includes a slide rail 11, an end plate 12 and a side plate 13. The slide rail 11 and the side plate 13 extend in the front-to-back direction. The two end plates 12 are respectively located at the front and rear sides of the slide rail 11. The front end of the slide rail 11 and the front end of the side plate 13 are fixed to the end plate 12 located at the front side. The rear end of the slide rail 11 and the rear end of the side plate 13 are fixed to the end plate 12 located at the rear side. The slide seat 21 is slidably connected to the slide rail 11. The side plate 13 is arranged on the left or right side of the slide rail 11. The sliding positioning mechanism is connected to the slide seat 21 and the side plate 13. The length scale 131 is arranged on the side plate 13. The fixed bending die 41 is fixedly connected to the end plate 12 located at the front side, which can simplify the structure of the bending machine and make it more lightweight. A slider is connected to the slide rail 11, and the slide seat 21 is fixed on the slider.

[0045] Furthermore, the sliding positioning mechanism is a quick clamp 25, which is fixed on the slide 21, and the movable clamp 251 of the quick clamp 25 is arranged corresponding to the position of the side plate 13. The quick clamp 25 is an existing commonly used clamp, and the structure of using the quick clamp 25 is simple. When the movable clamp 251 of the quick clamp 25 is pressed on the side plate 13, the slide 21 and the side plate 13 are relatively fixed to realize the positioning of the slide 21, and when the movable clamp 251 of the quick clamp 25 is released, the slide 21 can slide. In other embodiments, the sliding positioning mechanism can be a structure such as a screw or a latch.

[0046] Further, refer to Figure 4 The side plate 13 is arranged vertically, and a horizontal plate extends from the slide 21 to one side of the side plate 13. A mounting plate 26 and a limit plate 27 are provided on the lower side of the horizontal plate. The mounting plate 26 and the limit plate 27 are respectively arranged on the left and right sides of the side plate 13. The mounting plate 26 is arranged on the side of the side plate 13 away from the slide 21. The quick clamp 25 is fixed on the mounting plate 26, and the movable clamp 251 of the quick clamp 25 is arranged corresponding to the position of the limit plate 27.

[0047] Since the side plate 13 may be deformed when the movable jaw 251 of the quick clamp 25 is pressed on the side plate 13, the limiting plate 27 can be provided to limit the deformation of the side plate 13 when it is pressed, so as to prevent the length scale 131 from being deformed after the side plate 13 is deformed under pressure, thereby affecting the precision control. The mounting plate 26 or the limiting plate 27 can be used as the length indicator 23.

[0048] Furthermore, the length scale 131 is arranged on a side of the side plate 13 away from the slide seat 21. This makes it convenient for operators to check.

[0049] In some specific embodiments, a second through hole extending from front to back is provided on the slide 21, and the rotating shaft 31 is rotatably connected to the second through hole. The rotation positioning mechanism includes a positioning screw hole and a positioning top screw 34. The positioning screw hole is provided on the slide 21, and the positioning screw hole is connected to the second through hole. The positioning top screw 34 is threadedly connected to the positioning screw hole. The positioning top screw 34 can be pressed against the rotating shaft 31 to achieve positioning.

[0050] When the positioning screw 34 is locked, the positioning screw 34 can press against the shaft 31, so that the shaft 31 cannot rotate, thereby realizing the rotation positioning of the shaft 31; when the positioning screw 34 is loosened, the positioning screw 34 does not contact the shaft 31, and the shaft 31 can rotate, and the structure is relatively simple. In other embodiments, the rotation positioning mechanism can also adopt a clamping or holding structure.

[0051] In some specific embodiments, a dial 33 is fixed to the rear end of the rotating shaft 31, and a rotation scale 331 is provided on the dial 33. The workpiece 5 can pass through the middle of the dial 33, and the dial 33 can be convenient for operators to check.

[0052] In some specific embodiments, the bending assembly 4 also includes a tube clamping member 43, which is located on the rear side of the fixed bending die 41 and the movable bending die 42. The tube clamping member 43 is connected to the fixed bending die 41 so as to be rotatable up and down. A clamping groove 431 with an opening facing downward is provided on the lower side of the tube clamping member 43. The clamping groove 431 is provided on the outer side of the head end of the first bending groove 411, and the clamping groove 431 is matched with the cross-sectional shape of the workpiece 5.

[0053] When the workpiece 5 enters the first bending groove 411, the clamping member 43 can be rotated downward to clamp the workpiece 5 through the clamping groove 431, so that the workpiece 5 remains relatively fixed at the head end of the first bending groove 411, limiting the outward deformation of the workpiece 5 during bending, thereby improving the bending accuracy; when the bending is completed, the clamping member 43 can be rotated upward to open the clamping member 43, referring to Figure 6 , making it easier to remove the workpiece 5.

[0054] In some specific embodiments, a rotating handle 44 is provided on the movable bending mold 42. By holding the rotating handle 44, it is possible to save effort when rotating the movable bending mold 42.

[0055] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A simple bending machine, characterized in that: include: Pedestal; A sliding assembly (2), comprising a sliding seat (21) and a sliding positioning mechanism, wherein the sliding seat (21) is slidably connected to the base along a front-to-rear direction, the sliding positioning mechanism is connected to the sliding seat (21) and the base, the sliding positioning mechanism is used to locate the front-to-rear position of the sliding seat (21) on the base, the base is provided with a length scale (131), and the sliding seat (21) is provided with a length indicating portion (23) capable of indicating the length scale (131); A rotating assembly (3) comprises a rotating shaft (31), a chuck (32) and a rotation positioning mechanism, wherein the rotating shaft (31) is rotationally connected to the slide seat (21) and axially fixed, the axial direction of the rotating shaft (31) extends in the front-to-back direction, the chuck (32) is arranged at the front side of the rotating shaft (31), and a first through hole (311) for passing a workpiece (5) is provided in the middle of the rotating shaft (31), the first through hole (311) is coaxially arranged with the rotating shaft (31), and the first through hole (311) is ) passes through the rotating shaft (31) from front to back and passes through the middle of the chuck (32), the chuck (32) is used to clamp the workpiece (5), the rotation positioning mechanism is connected to the slide (21) and the rotating shaft (31), the rotation positioning mechanism is used to locate the rotation angle of the rotating shaft (31) in the slide (21), a rotation scale (331) is provided on the rear side of the rotating shaft (31), and a rotation indicating portion (24) capable of indicating the rotation scale (331) is provided on the slide (21); A bending assembly (4) is arranged on the front side of the base, the bending assembly (4) comprises a fixed bending die (41) and a movable bending die (42), the fixed bending die (41) is fixedly connected to the base, an outer side surface of the fixed bending die (41) is provided with a first bending groove (411) extending in an arc shape, the first end of the first bending groove (411) is directly opposite to the first through hole (311), the movable bending die (42) is arranged on the outer side of the fixed bending die (41), and the movable bending die (42) is arranged on the outer side of the fixed bending die (41). The bending die (42) is rotatably connected to the fixed bending die (41); a second bending groove (421) is provided on the inner side surface of the fixed bending die (41); the first bending groove (411) and the second bending groove (421) together form a bending space capable of accommodating the cross section of a workpiece (5); an angle scale (412) is provided on the upper side of the fixed bending die (41); and an angle indicating portion (422) capable of indicating the angle scale (412) is provided on the movable bending die (42).

2. The simple bending machine according to claim 1, characterized in that: The base comprises a slide rail (11), an end plate (12) and a side plate (13); the slide rail (11) and the side plate (13) both extend in the front-to-back direction; the two end plates (12) are respectively located at the front and rear sides of the slide rail (11); the front end of the slide rail (11) and the front end of the side plate (13) are fixed to the end plate (12) located at the front side; the rear end of the slide rail (11) and the rear end of the side plate (13) are fixed to the end plate (12) located at the rear side; the slide seat (21) is slidably connected to the slide rail (11); the side plate (13) is arranged on the left side or the right side of the slide rail (11); the sliding positioning mechanism is connected to the slide seat (21) and the side plate (13); the length scale (131) is arranged on the side plate (13); and the fixed bending mold (41) is fixedly connected to the end plate (12) located at the front side.

3. The simple bending machine according to claim 2, characterized in that: The sliding positioning mechanism is a quick clamp (25), the quick clamp (25) is fixed on the slide seat (21), and the movable clamp (251) of the quick clamp (25) is arranged corresponding to the position of the side plate (13).

4. The simple bending machine according to claim 3, characterized in that: The side plate (13) is arranged vertically, and a transverse plate extends from the slide seat (21) to one side of the side plate (13). A mounting plate (26) and a limit plate (27) are arranged on the lower side of the transverse plate. The mounting plate (26) and the limit plate (27) are arranged on the left and right sides of the side plate (13) respectively. The mounting plate (26) is arranged on the side of the side plate (13) away from the slide seat (21). The quick clamp (25) is fixed on the mounting plate (26), and the movable clamp (251) of the quick clamp (25) is arranged corresponding to the position of the limit plate (27).

5. The simple bending machine according to claim 4, characterized in that: The length scale (131) is arranged on a side of the side plate (13) away from the slide seat (21).

6. The simple bending machine according to claim 1, characterized in that: The slide seat (21) is provided with a second through hole which passes through the slide seat (21) from front to back, the rotating shaft (31) is rotatably connected in the second through hole, the rotation positioning mechanism comprises a positioning screw hole and a positioning top screw (34), the positioning screw hole is provided on the slide seat (21), the positioning screw hole is communicated with the second through hole, the positioning top screw (34) is threadedly connected with the positioning screw hole, and the positioning top screw (34) can be pressed against the rotating shaft (31) to achieve positioning.

7. The simple bending machine according to claim 1, characterized in that: A scale plate (33) is fixed to the rear end of the rotating shaft (31), and the rotating scale (331) is arranged on the scale plate (33).

8. The simple bending machine according to claim 1, characterized in that: The bending assembly (4) further comprises a pipe clamping member (43), wherein the pipe clamping member (43) is located at the rear side of the fixed bending die (41) and the movable bending die (42), and the pipe clamping member (43) is connected to the fixed bending die (41) so as to be rotatable up and down, and a clamping groove (431) is provided at the lower side of the pipe clamping member (43), and the clamping groove (431) is provided at the outer side of the head end of the first bending groove (411).

9. The simple bending machine according to claim 1, characterized in that: The movable bending die (42) is provided with a rotating handle (44).

Images