CN219736219U - Elbow fixing and detecting device - Google Patents

Abstract

The utility model provides a return bend is fixed and detection device, includes the base plate, be equipped with supporting component and detection component on the base plate, supporting component includes at least one bearing portion and at least one portion that compresses tightly, bearing portion detachable with the base plate is connected, bearing portion is used for supporting the return bend, compress tightly portion detachable with the base plate is connected, it is located to compress tightly portion one side of bearing portion, be used for with the return bend compress tightly to on the bearing portion, detection component with the base plate can dismantle and be connected, just detection component is located supporting component one side, detection component is used for right the return bend detects, can adjust bearing portion and the quantity of compressing tightly portion according to the specification size of return bend, has good suitability, and adjusts conveniently, and fixed efficiency is good, convenient to detect.

Description

Elbow fixing and detecting device

Technical Field

The utility model relates to the technical field of tooling jigs, in particular to a bent pipe fixing and detecting device.

Background

The bent pipe is a common part in the fields of machinery, chemical industry and the like, is mainly used for transfusion, gas transmission and the like, is widely applied to various industries, for example, an automobile tail pipe in the automobile field is one of common bent pipes, and because the specification and the shape of the bent pipe are different, the bent pipe needs to be detected before the bent pipe is put into use so as to ensure that the quality of the bent pipe meets the requirement, and in the detection process, the bent pipe needs to be fixed generally so as to ensure that the detection result is reliable, the artificial fixing is greatly influenced by manual work, the detection result is inaccurate, and because the bent pipe has more specifications, a profiling tool needs to be processed every time when detecting one bent pipe, the input cost is higher, and the economical efficiency is poor.

Disclosure of Invention

Accordingly, the present utility model is directed to a pipe bending fixing and detecting device with excellent applicability.

The utility model provides a bent pipe fixing and detecting device which comprises a substrate, wherein a supporting component and a detecting component are arranged on the substrate, the supporting component comprises at least one bearing part and at least one pressing part, the bearing part is detachably connected with the substrate, the bearing part is used for supporting a bent pipe, the pressing part is detachably connected with the substrate, the pressing part is positioned on one side of the bearing part and is used for pressing the bent pipe onto the bearing part, the detecting component is detachably connected with the substrate, the detecting component is positioned on one side of the supporting component, and the detecting component is used for detecting the bent pipe.

In an embodiment, the supporting portion includes a mounting seat and a supporting member, the supporting member with the upper end of mounting seat is connected, the supporting member passes through the mounting seat is installed to on the base plate, the supporting member upper end seted up with return bend complex holding tank, the return bend hold in the holding tank.

In an embodiment, the mounting seat upper end has seted up the mounting groove, the lower extreme of holding in the palm the piece is equipped with the connecting piece, the connecting piece with the mounting groove cooperation sets up, and holds in the mounting groove.

In an embodiment, the supporting portion further comprises at least one spacer, the spacer is mounted between the mounting base and the supporting member, a through hole is formed in the spacer, the through hole is matched with the connecting member, and the spacer is sleeved on the connecting member through the through hole.

In an embodiment, the pressing part comprises a base and a pressing piece, the pressing piece is rotatably connected with the base, the base is used for being connected with the base plate, the pressing piece is used for being in contact with the bent pipe, and pressing or releasing of the bent pipe is achieved through rotation of the pressing piece.

In an embodiment, the base comprises a first base body and a second base body, the first base body is connected with the base plate, one end of the second base body is rotatably connected with the first base body, the other end of the second base body is connected with the pressing piece, and a pressing piece groove matched with the pressing piece is formed in the second base body.

In an embodiment, the casting die includes connecting rod and pressure head, the connecting rod install in through two fastener the casting die inslot, the lower extreme of connecting rod with the pressure head is connected, two fasteners are located respectively the upper end and the lower extreme of second pedestal, the pressure head be used for with the return bend contact.

In an embodiment, the detection component includes adjustment seat and detection spare, adjustment seat with the base plate can dismantle the connection, the detection spare includes mobile jib and detects the head, detect the head with the one end coaxial coupling of mobile jib, detect the head include with the external diameter complex cavity of return bend, the cavity set up in detect the head is kept away from the one end of mobile jib, coaxial locating lever that is equipped with in the cavity, the locating lever with the close up hole cooperation of return bend, the locating lever is used for detecting the aperture and the hole depth of close up hole.

In an embodiment, the detection head further comprises a through groove communicated with the cavity, the through groove is formed in the radially outermost surface of the detection head, and the axial distance from the through groove to the main rod is smaller than the axial distance from the free end of the positioning rod to the main rod.

In an embodiment, the detection assembly comprises a support and a detection rod, the position of the support is matched with the position of the sheet of the bent pipe, the support is detachably connected with the base plate, a second connecting hole matched with the connecting hole on the sheet is formed in the support, the second connecting hole is used for detecting the position of the connecting hole, and the detection rod is used for detecting the aperture size of the connecting hole.

The utility model has the beneficial effects that:

the support assembly comprises at least one bearing part and at least one compressing part, the bent pipe is supported by the bearing part, the bent pipe is compressed on the bearing part by the compressing part, the number of the bearing part and the compressing part can be adjusted according to the specification and the size of the bent pipe, and the support assembly has good applicability;

the bearing parts are detachably arranged on the base plate, so that the bearing parts are convenient to assemble and disassemble and the number of the bearing parts is convenient to adjust; the pressing parts are detachably arranged on the base plate, so that the pressing parts are convenient to assemble and disassemble, and the number of the pressing parts is convenient to adjust;

the detection component is used for detecting parameters of the bent pipe so as to ensure that the processing quality of the bent pipe meets the requirements.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an overall structure of an embodiment of the present utility model;

FIG. 2 is another angular schematic view of the overall structure of an embodiment of the present utility model;

FIG. 3 is an exploded view of a support portion according to an embodiment of the present utility model;

FIG. 4 is a schematic structural view of a compressing portion according to an embodiment of the present utility model;

FIG. 5 is a schematic structural diagram of a detecting component according to an embodiment of the present utility model;

FIG. 6 is another schematic view of a detecting assembly according to an embodiment of the present utility model;

FIG. 7 is a partial cross-sectional view of an elbow of an embodiment of the present utility model.

In the figure:

10-a substrate; 11-a handle; 12-fixing holes;

20-a support assembly; 21-a supporting part; 211-mounting seats; 2111-mounting holes; 2112-mounting slots; 2113-first positioning holes; 212-a bracket; 2121-receiving groove; 2122-connectors; 2123-second positioning holes; 213-shims; 2131-through holes; 22-a pressing part; 221-a base; 2211-a first housing; 2212-a second housing; 2213-handle; 222-pressing piece; 2221-connecting rod; 2222-ram; 2223-fastener;

30-a detection assembly; 31-adjusting seats; 311-adjusting holes; 312-clamping piece; 313-clamping groove; 32-detecting piece; 321-a main rod; 3211-grip; 3212-clamping rod; 322-a detection head; 3221-a cavity; 3222-positioning rods; 3223-through slots; 33-support; 34-a detection rod; 35-a receiving seat; 351-receiving holes;

40-bending the pipe; 41-main hole; 42-closing-in holes; 43-sheet.

Detailed Description

Specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms described above will be understood to those of ordinary skill in the art in a specific context.

The terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," and the like are used as references to orientations or positional relationships based on the orientation or positional relationships shown in the drawings, or the orientation or positional relationships in which the inventive product is conventionally disposed in use, merely for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore are not to be construed as limiting the utility model.

The terms "first," "second," "third," and the like, are merely used for distinguishing between similar elements and not necessarily for indicating or implying a relative importance or order.

The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a list of elements does not include only those elements but may include other elements not expressly listed.

As shown in fig. 1, the elbow fixing and detecting device provided by the utility model comprises a substrate 10, wherein a supporting component 20 and a detecting component 30 are arranged on the substrate 10, the supporting component 20 comprises at least one bearing part 21 and at least one compressing part 22, the bearing part 21 is detachably arranged on the substrate 10, the bearing part 21 is used for supporting an elbow 40, the compressing part 22 is detachably arranged on the substrate 10, the compressing part 22 is positioned on one side of the bearing part 21 and is used for compressing the elbow 40 to the bearing part 21, shake or position deviation of the elbow 40 in the detecting process is prevented, so that the detecting efficiency is ensured, the detecting component 30 is detachably connected with the substrate 10, the detecting component 30 is positioned on one side of the supporting component 20, and the detecting component 30 is used for detecting the elbow 40 and ensuring that the production quality of the elbow 40 is qualified.

In one possible example, as shown in fig. 1, handles 11 are disposed at two ends of the substrate 10, and the handles 11 are disposed, so that a technician can conveniently carry the whole device, and convenience in use is increased.

In one possible example, as shown in fig. 1, at least one fixing hole 12 is formed in the substrate 10, the fixing hole 12 penetrates the substrate 10 along the up-down direction, the fixing hole 12 is used for being connected with an operation table, when the substrate 10 is placed on the operation table, the substrate 10 can be fixed on the operation table through the fixing hole 12, shake or position deviation of the whole device relative to the operation table in the fixing and detecting processes of the bent pipe 40 is prevented, the use efficiency is improved, and the fixing mode is simple and easy to operate.

Illustratively, the console is provided with openings that mate with the mounting holes 12.

The fixing holes 12 are illustratively provided as screw holes or pin holes.

Illustratively, the fixing holes 12 are opened at four end corners of the substrate 10 to ensure a fixing effect of the substrate 10.

Referring to fig. 1 and 2, the supporting portion 21 includes a mounting seat 211 and a supporting member 212, the supporting member 212 is connected with an upper end of the mounting seat 211 and is mounted on the substrate 10 through the mounting seat 211, a receiving groove 2121 matched with the bent tube 40 is formed at an upper end of the supporting member 212, and when the bent tube 40 is placed on the supporting portion 21, the bent tube 40 can be received in the receiving groove 2121.

In one possible example, the receiving groove 2121 is contoured to the elbow 40, in which case only one bearing 21 is required to support the elbow 40.

In one possible example, the mounting base 211 is provided with a mounting hole 2111, the substrate 10 is provided with a second mounting hole (not labeled in the figure) matched with the mounting hole 2111, and the bearing part 21 can be detachably mounted on the substrate 10 through the matching of the mounting hole 2111 and the second mounting hole, so that the bearing parts 21 with different specifications and numbers can be conveniently replaced according to the specification and the size of the bent pipe 40, and the operation is simple and convenient, and has good adaptability.

Illustratively, the mounting holes 2111 and the second mounting holes are provided as screw holes, and the mounting base 211 is detachably connected to the substrate 10 by screwing, so that the mounting base is convenient to assemble and disassemble.

In one possible example, the mount 211 and the bracket 212 are integrally formed.

In one possible example, as shown in fig. 3, the mounting seat 211 and the supporting member 212 are detachably connected, the upper end of the mounting seat 211 is provided with a mounting groove 2112, the lower end of the supporting member 212 is provided with a connecting member 2122, the connecting member 2122 is matched with the mounting groove 2112, and when the mounting seat 211 is connected with the supporting member 212, the connecting member 2122 is simply and conveniently mounted in the mounting groove 2112.

Illustratively, the coupler 2122 is integrally formed with the carrier 212. Illustratively, the connector 2122 and the mounting groove 2112 are interference fit.

In one possible example, as shown in fig. 3, the supporting portion 21 further includes at least one spacer 213, the spacer 213 is provided with a through hole 2131, the through hole 2131 is matched with the connecting piece 2122, the spacer 213 is located between the mounting base 211 and the supporting piece 212, the spacer 213 is sleeved on the connecting piece 2122 of the supporting piece 212 through the through hole 2131 during mounting, the height of the supporting piece 212 relative to the mounting base 211 can be adjusted through the arrangement of the spacer 213, and the angle of the supporting piece 212 relative to the mounting base 211 can be adjusted, for example, the spacer 213 with an inclined upper surface can be selected.

Illustratively, the mounting base 211 is provided with a first positioning hole 2113, the first positioning hole 2113 is communicated with the mounting groove 2112, the central axis of the first positioning hole 2113 is perpendicular to the central axis of the mounting groove 2112, the connecting piece 2122 is provided with a second positioning hole 2123, and the second positioning hole 2123 is matched with the first positioning hole 2113 to connect the connecting piece 2122 with the mounting base 211.

Illustratively, the first and second locating holes 2113 and 2123 are provided as screw holes or pin holes.

Referring to fig. 1 and 4, the pressing part 22 includes a base 221 and a pressing part 222, the pressing part 222 is rotatably connected with the base 221, the base 221 is used for being connected with the base board 10, the pressing part 222 is used for contacting with the elbow 40 and pressing the elbow 40, the pressing or releasing of the elbow 40 can be realized by adjusting the position of the pressing part 222 relative to the base 221, and the pressing part 22 is matched with the supporting part 21 to fix the elbow 40.

In one possible example, as shown in fig. 4, the base 221 includes a first base 2211 and a second base 2212, the first base 2211 is used for being connected with the substrate 10, one end of the second base 2212 is rotatably connected with the first base 2211, the other end is connected with a pressing piece 222, a pressing piece groove is formed in the second base 2212, the pressing piece groove penetrates through the second base 2212 along the up-down direction, and the pressing piece 222 is connected with the second base 2212 through the pressing piece groove.

Illustratively, the first and second housings 2211 and 2212 are vertically connected.

Illustratively, the compression element 222 is coupled perpendicular to the second housing 2212.

As shown in fig. 4, a handle 2213 is disposed on the base 221, the handle 2213 is rotatably connected with the first base 2211 and fixedly connected with the second base 2212, and a technician controls the handle 2213 to rotate the handle 2213 relative to the first base 2211, so as to drive the second base 2212 and the pressing member 222 to rotate relative to the first base 2211.

In one possible example, as shown in fig. 4, the pressing member 222 includes a connection rod 2221 and a pressing head 2222, the connection rod 2221 is installed in the pressing member groove, and the lower end of the connection rod 2221 is connected to the pressing head 222, the connection rod 2221 is fixed to the second seat 2212 by two upper and lower fastening members 2223, the two fastening members 2223 are respectively located at the upper and lower ends of the second seat 2212, and the height of the pressing member 222 with respect to the base 221 can be adjusted by adjusting the positions of the fastening members 2223, so as to improve the applicability of the pressing portion 22.

Illustratively, the connecting rod 2221 is threaded and the fastener 2223 is configured as a nut.

Illustratively, the ram 2222 is made of rubber to prevent scratching the surface of the elbow 40.

Illustratively, the pressure head 2222 is integrally formed with the connecting rod 2221, and a scratch-resistant pad is disposed at the lower end of the pressure head 2222, where the scratch-resistant pad is a rubber pad.

In some applications of the elbow 40, as shown in fig. 7, the elbow 40 includes a main hole 41 and a closing hole 42 at an end thereof, the closing hole 42 has a smaller pore size than the main hole 41, and the closing hole 42 facilitates connection of the elbow 40 with other components;

referring to fig. 1 and 5, the detecting assembly 30 includes an adjusting seat 31 and a detecting member 32, the adjusting seat 31 is detachably connected with the substrate 10, the detecting member 32 includes a main rod 321 and a detecting head 322, the detecting head 322 is connected with one end of the main rod 321, the detecting head 322 is coaxially arranged with the main rod 321, the detecting head 322 includes a cavity 3221 for accommodating the elbow 40, the cavity 3221 is arranged at one end of the detecting head 322 far away from the main rod 321, the cavity 3221 is matched with the outer diameter of the elbow 40, a positioning rod 3222 is arranged in the cavity 3221 in a protruding manner, the positioning rod 3222 is coaxially arranged with the main rod 321 and the detecting head 322, and the positioning rod 3222 is matched with the closing hole 42, when the end of the elbow 40 is accommodated in the cavity 3221, the elbow 40 is sleeved on the positioning rod 3222 through the closing hole 42, and whether the aperture size of the closing hole 42 is in compliance can be detected through the positioning rod 3222;

the detection head 322 further includes a through groove 3223 that communicates with the cavity 3221, the through groove 3223 is formed in the radially outermost surface of the detection head 322, and the axial distance from the through groove 3223 to the main rod 321 is smaller than the axial distance from the free end of the positioning rod 3222 to the main rod 321, when the elbow 40 is accommodated in the cavity 3221 and can be just sleeved on the positioning rod 3222, if one end of the elbow 40 along the axial direction can be located in the through groove 3223, the hole depth of the closing hole 42 of the elbow 40 is indicated to meet the requirements.

In one possible example, as shown in fig. 6, a grip 3211 is provided at an end of the main rod 321 remote from the detection head 322, and the grip 3211 facilitates manipulation of the main rod 321 by a technician.

The adjusting seat 31 comprises an adjusting hole 311 for installing a main rod 321, the detecting piece 32 is installed on the adjusting seat 31 through the adjusting hole 311, one side of the adjusting seat 31 is provided with a clamping piece 312, the upper end of the clamping piece 312 is provided with a clamping groove 313, the main rod 321 is convexly provided with a clamping rod 3212, the clamping rod 3212 is matched with the clamping groove 313, the detecting piece 32 is fixed on the adjusting seat 31, and the detecting piece 32 is prevented from moving relative to the adjusting seat 31 in the circumferential direction.

In one possible example, referring to fig. 1 and fig. 2, in order to facilitate connection of the bent pipe 40 with other components, the bent pipe 40 is usually welded with the sheet 43, and the sheet 43 is provided with a connection hole, so the detecting assembly 30 further includes the support 33 and the detecting rod 34, the support 33 is detachably connected with the base plate 10, the position of the support 33 is matched with the position of the sheet 43, and the support 33 is provided with a second connection hole matched with the connection hole, and the second connection hole is used for detecting whether the position of the connection hole is suitable, when the bent pipe 40 is fixed, if the sheet 43 can be just located on the support 33, the position of the sheet 43 meets the requirement, if the detecting rod 34 can pass through the connection hole to enter the second connection hole of the support 33, the position of the connection hole meets the requirement, and whether the aperture size of the connection hole is suitable can be detected by the detecting rod 34.

Illustratively, the standoffs 33 are threadably mounted to the base plate 10.

Illustratively, the check rod 34 employs a go-no-go gauge.

In one possible example, as shown in fig. 1, a receiving seat 35 is provided on the substrate 10, the receiving seat 35 is used for placing the detecting rod 34, a receiving hole 351 is formed at an upper end of the receiving seat 35, and one end of the detecting rod 34 can be placed in the receiving hole 351, so as to perform a receiving function of the detecting rod 34.

Illustratively, the receptacle 35 is mounted to the base plate 10 by a threaded connection.

The working principle of the utility model is as follows:

by arranging the support assembly 20, the support assembly 20 comprises at least one bearing part 21 and at least one compressing part 22, the bent pipe 40 is supported by the bearing part 21, the bent pipe 40 is compressed on the bearing part 21 by the compressing part 22, the number of the bearing part 21 and the compressing part 22 can be adjusted according to the specification and the size of the bent pipe 40, and the support assembly has good applicability;

the bearing parts 21 are detachably arranged on the base plate 10, so that the bearing parts 21 are convenient to assemble and disassemble and the number of the bearing parts 21 is convenient to adjust; the pressing parts 22 are detachably arranged on the substrate 10, so that the pressing parts 22 are convenient to assemble and disassemble and the number of the pressing parts 22 is convenient to adjust;

the detecting assembly 30 is used for detecting parameters of the bent pipe 40 to ensure that the processing quality of the bent pipe 40 meets the requirements.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be included in the present utility model. Accordingly, the scope of the utility model should be assessed as that of the appended claims.

Claims (10)

1. The utility model provides a return bend is fixed and detection device which characterized in that: including base plate (10), be equipped with supporting component (20) and detection component (30) on base plate (10), supporting component (20) include at least one bearing portion (21) and at least one compress tightly portion (22), bearing portion (21) detachable with base plate (10) are connected, bearing portion (21) are used for supporting return bend (40), compress tightly portion (22) detachable with base plate (10) are connected, compress tightly portion (22) are located bearing portion (21) one side is used for with return bend (40) compress tightly to on bearing portion (21), detection component (30) with base plate (10) detachable is connected, just detection component (30) are located supporting component (20) one side, detection component (30) are used for detecting return bend (40).

2. The elbow fixing and detecting device according to claim 1, wherein: the bearing part (21) comprises a mounting seat (211) and a supporting piece (212), the supporting piece (212) is connected with the upper end of the mounting seat (211), the supporting piece (212) is mounted on the substrate (10) through the mounting seat (211), a containing groove (2121) matched with the bent pipe (40) is formed in the upper end of the supporting piece (212), and the bent pipe (40) is contained in the containing groove (2121).

3. The elbow fixing and detecting device according to claim 2, wherein: the mounting seat (211) upper end has seted up mounting groove (2112), the lower extreme of holding in the palm piece (212) is equipped with connecting piece (2122), connecting piece (2122) with mounting groove (2112) cooperation sets up, and hold in mounting groove (2112).

4. The elbow fixing and detecting device according to claim 3, wherein: the bearing part (21) further comprises at least one gasket (213), the gasket (213) is installed between the installation seat (211) and the supporting piece (212), a through hole (2131) is formed in the gasket (213), the through hole (2131) is matched with the connecting piece (2122), and the gasket (213) is sleeved on the connecting piece (2122) through the through hole (2131).

5. The elbow fixing and detecting device according to claim 1, wherein: the pressing part (22) comprises a base (221) and a pressing piece (222), the pressing piece (222) is rotatably connected with the base (221), the base (221) is used for being connected with the base plate (10), the pressing piece (222) is used for being in contact with the bent pipe (40), and pressing or releasing of the bent pipe (40) is achieved through rotation of the pressing piece (222).

6. The elbow fixing and detecting device according to claim 5, wherein: the base (221) comprises a first base body (2211) and a second base body (2212), the first base body (2211) is connected with the base plate (10), one end of the second base body (2212) is rotatably connected with the first base body (2211), the other end of the second base body is connected with the pressing piece (222), and a pressing piece groove matched with the pressing piece (222) is formed in the second base body (2212).

7. The elbow fixing and detecting device according to claim 6, wherein: the casting die (222) comprises a connecting rod (2221) and a pressure head (2222), the connecting rod (2221) is installed in the casting die groove through two fasteners (2223), the lower end of the connecting rod (2221) is connected with the pressure head (2222), the two fasteners (2223) are respectively located at the upper end and the lower end of the second base body (2212), and the pressure head (2222) is used for being in contact with the bent pipe (40).

8. The elbow fixing and detecting device according to claim 1, wherein: the utility model provides a detection subassembly (30) is including adjusting seat (31) and detecting piece (32), adjust seat (31) with base plate (10) can dismantle and be connected, detect piece (32) include mobile jib (321) and detect head (322), detect head (322) with one end coaxial coupling of mobile jib (321), detect head (322) include with external diameter complex cavity (3221) of return bend (40), cavity (3221) set up in detect head (322) are kept away from one end of mobile jib (321), coaxial locating lever (3222) are equipped with in cavity (3221), locating lever (3222) with closing up hole (42) cooperation of return bend (40), locating lever (3222) are used for detecting aperture and hole depth of closing up hole (42).

9. The elbow fixing and detecting device according to claim 8, wherein: the detection head (322) further comprises a through groove (3223) communicated with the cavity (3221), the through groove (3223) is formed in the radially outermost surface of the detection head (322), and the axial distance from the through groove (3223) to the main rod (321) is smaller than the axial distance from the free end of the positioning rod (3222) to the main rod (321).

10. The elbow fixing and detecting device according to claim 1, wherein: the detection assembly (30) comprises a support (33) and a detection rod (34), the position of the support (33) is matched with the position of a sheet (43) of the bent pipe (40), the support (33) is detachably connected with the base plate (10), a second connecting hole matched with a connecting hole on the sheet (43) is formed in the support (33), the second connecting hole is used for detecting the position of the connecting hole, and the detection rod (34) is used for detecting the aperture size of the connecting hole.