Blade-replaceable positioning knife rest of corrugated pipe tapping machine

Abstract

The utility model discloses a corrugated pipe tapping machine positioning knife rest with replaceable blades, which belongs to the field of corrugated pipe tapping machine equipment and comprises a knife holder and a knife rest component. The tool apron is a rectangular block, a rectangular groove is formed in the upper end face of the tool apron, a threaded lead screw is rotationally arranged in the rectangular groove of the tool apron, and a sliding block base is arranged outside the threaded lead screw in an engaged mode. According to the corrugated pipe tapping machine positioning tool rest with the replaceable blade, one end of the corrugated pipe is borne and surrounded through the annular pipe, so that the opening end of the corrugated pipe can be integrally limited by the annular pipe, and compared with an opening mode in a reference file, the limiting seat and the annular pipe are oppositely arranged, so that the blade can be replaced conveniently; the position stability of the corrugated pipe in the cutting process can be ensured, and the cutting deviation caused by pipeline movement or shaking is avoided, so that more accurate opening treatment is realized; and in cooperation with pulling of one end of the corrugated pipe by the tapping machine and linear movement of the tool rest assembly, the corrugated pipe can be cut and opened more accurately.

Description

Technical Field

[0001] The utility model belongs to the field of bellows opening machines, and particularly relates to a positioning tool rest for a bellows opening machine with replaceable blades. Background Art

[0002] A bellows is a metal pipe with a corrugated structure, usually made of stainless steel, copper, aluminum or other metals. This pipe gets its name from its special corrugated structure, and these corrugations can increase the flexibility and pressure-bearing capacity of the pipe; bellows are usually used in various industrial applications, including pipe connections, exhaust systems, flexible ducts, heat exchangers and other occasions that need to withstand high pressure or high temperature. Due to its flexibility and pressure resistance, bellows have been widely used in the engineering and manufacturing fields.

[0003] For example, a Chinese published patent with the patent number CN212887942U points out a positioning tool rest for a bellows opening machine with replaceable blades; ordinary art blades are used in this cited document, with low cost and convenient replacement. The replacement and repair of the blades can be completed without stopping the machine, greatly improving the efficiency of the opening machine. A positioning device is installed to solve the problem of deviation during opening and turning, and improve the opening quality of the bellows;

[0004] In the actual use of the above-cited patent, although the opening of the bellows is achieved, it still has certain limitations in use, that is, the cutting edge of the blade in the positioning tool rest in this cited document is in an exposed state as a whole, and it is very easy to cause harm to the staff during assembly and use. At the same time, this tool rest lacks the overall limit and bearing of the bellows during use, and only relies on a columnar guide rod to limit the bellows. In such a cutting method, the bellows will be distorted, resulting in an asymmetric cut of the bellows, and ultimately the lengths or angles on both sides of the cut will be inconsistent, affecting subsequent use or processing. Therefore, a positioning tool rest for a bellows opening machine with replaceable blades is proposed to solve the positioning tool rest in the cited document. Summary of the Utility Model

[0005] In view of one or more of the above defects or improvement requirements in the prior art, the present utility model provides a positioning tool rest for a bellows opening machine with replaceable blades, which has the advantages of reducing the offset of the bellows during opening and being able to replace the blades, improving the opening stability of the bellows.

[0006] To achieve the above object, the present utility model provides a positioning tool rest for a bellows opening machine with replaceable blades, including a tool holder and a tool rest assembly;

[0007] The tool holder is in the shape of a rectangular block, and a rectangular groove is provided on its upper end surface. A threaded screw rod is rotatably arranged in the rectangular groove of the tool holder. A slider seat is engaged with the outer part of the threaded screw rod, and the slider seat slides in the rectangular groove of the tool holder;

[0008] The tool rest assembly includes a positioning base arranged on the slider seat. A ring seat is carried on the positioning base. A ring pipe is carried on the upper end surface of the ring seat. A blade notch is vertically formed on the outer circumferential surface of the ring pipe in the transverse direction perpendicular to the tool holder;

[0009] A guiding seat is also vertically arranged on the positioning base. A stepped plate protrudes from the side surface of the guiding seat. A positioning seat is arranged on the stepped plate. A hole is formed in the positioning seat, and a guiding rod slides in the hole. An opening blade is arranged at the bottom of the guiding rod;

[0010] A corrugated pipe is slidably arranged in the tool rest assembly.

[0011] As a further improvement of the present utility model, two positioning plates are arranged in the rectangular groove of the tool holder. Bearing parts are respectively fitted in the two positioning plates. The two ends of the threaded screw rod are rotatably matched with the bearing parts; A limiting seat is vertically arranged on the upper end surface of the tool holder. A limiting inner ring is formed in the limiting seat. The limiting seat and the tool rest assembly are arranged opposite to each other.

[0012] As a further improvement of the present utility model, one end of the threaded screw rod penetrates through one of the tool holders and is also connected with a rotating shaft handle. A rubber sleeve is sleeved on the outer part of the rotating shaft handle.

[0013] As a further improvement of the present utility model, a circular ring is formed on the side surface of the guiding seat. The center of the circular ring and the center of the ring pipe are arranged on the same horizontal line. The opening size of the circular ring is larger than the opening size of the ring pipe; The ring seat is detachably assembled on the positioning base through bolts.

[0014] As a further improvement of the present utility model, a groove is formed on the stepped plate for the opening blade to slide. A positioning bolt is threadedly connected to the positioning seat. The positioning seat is detachably arranged on the stepped plate through the positioning bolt.

[0015] As a further improvement of the present utility model, a compression spring is sleeved on the outer part of the guiding rod. The end of the guiding rod protrudes and limits the compression spring between the guiding rod and the positioning seat. The opening blade is threadedly assembled with the guiding rod.

[0016] Generally speaking, compared with the prior art, the beneficial effects of the above technical solutions conceived by the present utility model include:

[0017] The positioning tool rest of the corrugated pipe opening machine with replaceable blades of the present utility model, in actual use, through the opposite arrangement of the limiting seat and the tool rest assembly, when the corrugated pipe extends to one side of the tool rest assembly via the limiting seat, at this time, the end of the corrugated pipe is supported and surrounded by the annular pipe, so that the opening end of the corrugated pipe can be integrally limited by the annular pipe. Compared with the opening method in the cited document, through the opposite arrangement of the limiting seat and the annular pipe in this application, the position of the corrugated pipe during the cutting process can be ensured to be stable, avoiding cutting deviation caused by the movement or shaking of the pipe, thereby realizing more precise opening processing.

[0018] The positioning tool rest of the corrugated pipe opening machine with replaceable blades of the present utility model, through the limiting cooperation between the threaded lead screw and the slider seat, enables the set tool rest assembly to perform straight-line cutting and opening on the corrugated pipe on the tool holder. In actual use, with the pulling of one end of the corrugated pipe by the opening machine and the straight-line movement of the tool rest assembly, the corrugated pipe can be more accurate during cutting and opening. With the surrounding and bearing of the annular pipe and the inner limiting ring, the offset phenomenon of the cut of the corrugated pipe can be significantly reduced, improving the opening consistency. Brief Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall installation structure of the present utility model;

[0020] Figure 2 It is a schematic diagram of the installation structure of the tool rest assembly and the corrugated pipe body of the present utility model;

[0021] Figure 3 It is a schematic diagram of the overall installation structure of the tool rest assembly of the present utility model;

[0022] Figure 4 It is a schematic diagram of the installation structure of the opening blade of the present utility model on the ring seat.

[0023] In all the drawings, the same reference numerals represent the same technical features, specifically: 1, tool holder; 2, positioning plate; 3, threaded lead screw; 4, rotating shaft handle; 5, limiting seat; 6, inner limiting ring; 7, tool rest assembly; 71, positioning plate; 72, guide seat; 73, ring seat; 74, annular pipe; 75, blade notch; 76, stepped plate; 77, positioning seat; 78, positioning bolt; 79, guide rod; 710, compression spring; 711, opening blade; 712, slider seat; 8, corrugated pipe. Detailed Description of the Embodiment

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment

[0026] As shown by Figures 1-4 a positioning tool holder for a corrugated pipe opening machine with replaceable blades, comprising a tool holder 1 and a tool holder assembly 7;

[0027] The tool holder 1 is in the shape of a rectangular block, and a rectangular groove is provided on its upper end surface. A threaded screw rod 3 is rotatably arranged in the rectangular groove of the tool holder 1, and a slider seat 712 is meshed outside the threaded screw rod 3. The slider seat 712 slides in the rectangular groove of the tool holder 1;

[0028] The tool holder assembly 7 includes a positioning base 71 arranged on the slider seat 712. A ring seat 73 is carried on the positioning base 71. A ring pipe 74 is carried on the upper end surface of the ring seat 73. A blade notch 75 is vertically opened on the outer circumferential surface of the ring pipe 74 perpendicular to the transverse direction of the tool holder 1;

[0029] A guide seat 72 is also vertically arranged on the positioning base 71. A stepped plate 76 protrudes from the side of the guide seat 72. A positioning seat 77 is arranged on the stepped plate 76. A hole is provided in the positioning seat 77, and a guide rod 79 slides in the hole. An opening blade 711 is arranged at the bottom of the guide rod 79;

[0030] A corrugated pipe 8 is slidably arranged in the tool holder assembly 7.

[0031] In this embodiment, in actual use, through the setting of the limit seat 5 and the opposite setting of the tool holder assembly 7, when the corrugated pipe 8 extends to one side of the tool holder assembly 7 via the limit seat 5, at this time, one end of the corrugated pipe 8 is carried and surrounded by the ring pipe 74, so that the opening end of the corrugated pipe 8 can be integrally limited by the ring pipe 74. Compared with the opening method in the cited document, through the opposite setting of the limit seat 5 and the ring pipe 74 in this application, the position of the corrugated pipe 8 can be ensured to be stable during the cutting process, avoiding cutting deviation caused by the movement or shaking of the pipe, thereby realizing more precise opening processing;

[0032] Furthermore, through the limiting fit between the threaded lead screw 3 and the slider seat 712, the tool rest assembly 7 can perform linear cutting and opening on the bellows 8 on the tool holder 1. In actual use, in cooperation with the pulling of one end of the bellows 8 by the opening machine and the linear movement of the tool rest assembly 7, the bellows 8 can be more accurate during cutting and opening. With the surrounding and bearing of the ring tube 74 and the limiting inner ring 6, the offset phenomenon of the cut of the bellows 8 can be significantly reduced, improving the opening consistency.

[0033] Specifically, referring to Figures 1-2 , two positioning plates 2 are arranged in the rectangular groove of the tool holder 1, and bearing parts are fitted in both of the two positioning plates 2; both ends of the threaded lead screw 3 are rotationally matched with the bearing parts; a limiting seat 5 is vertically arranged on the upper end surface of the tool holder 1, a limiting inner ring 6 is opened in the limiting seat 5, and the limiting seat 5 and the tool rest assembly 7 are arranged oppositely.

[0034] In this embodiment, in actual use, through the surrounding arrangement of the limiting seat 5 and the limiting inner ring 6 on the bellows 8, in a specific embodiment, as shown in Figure 2 , when the user needs to perform opening cutting on the bellows 8, one end of the bellows 8 is passed through the limiting seat 5 and passed out from the limiting inner ring 6, and then one end of the bellows 8 to be opened is extended to one side of the tool rest assembly 7 and passed through the ring tube 74. At this time, through the cooperation of the limiting seat 5 and the ring tube 74, the bellows 8 can be prevented from deforming or moving during cutting, ensuring the quality and accuracy of the cut.

[0035] Furthermore, through the rotational cooperation of the positioning plate 2 and the bearing part, the set threaded lead screw 3 is more stable during rotation, reducing the axial load during the rotation of the threaded lead screw 3, and at the same time further improving the stability of the moving cutting of the bellows 8.

[0036] Specifically, referring to Figures 1-2 , one end of the threaded lead screw 3 penetrates through one of the tool holders 1 and is also connected with a rotating shaft handle 4, and a rubber sleeve is sleeved outside the rotating shaft handle 4.

[0037] In this embodiment, in actual use, the set rotating shaft handle 4 can be used to drive the rotation of the threaded lead screw 3, and the rubber sleeve arranged on the threaded lead screw 3 can ensure more comfort during holding. In a preferred embodiment, in cooperation with the design of the opening machine, in the preferred embodiment of the present application, the set rotating shaft handle 4 can be replaced by a motor drive.

[0038] Specifically, referring to Figures 3-4 , a circular ring is opened on the side surface of the guide seat 72, and the center of the circular ring is arranged on the same horizontal line as the center of the ring tube 74; the opening size of the ring tube 74 is larger than the opening size of the ring tube 74; the ring seat 73 is detachably assembled on the positioning base 71 through bolts.

[0039] In this embodiment, the circular ring on one side of the guiding seat 72 can be used for the corrugated pipe 8 to pass through. When cutting the corrugated pipe 8, with the pulling of an external opening machine, the opening direction of the set corrugated pipe 8 can pass through the guiding seat 72 via the ring pipe 74, thereby realizing the overall cutting opening on the outer wall of the corrugated pipe 8. At the same time, the set ring seat 73 is arranged on the positioning base 71 in a bolted assembly manner, so that when the size of the corrugated pipe 8 changes, the ring seat 73 can be disassembled and replaced. The user can prefabricate the ring seat 73 and provide different sizes of ring pipes 74 for installation.

[0040] Specifically, referring to Figures 3-4 , a groove is formed on the stepped plate 76 for the opening blade 711 to slide, and a positioning bolt 78 is threadedly connected to the positioning seat 77. The positioning seat 77 is detachably arranged on the stepped plate 76 through the positioning bolt 78.

[0041] In this embodiment, during use, the set stepped plate 76 can be used to vertically limit the opening blade 711, ensuring that the opening blade 711 is always in a straight-line cut during movement, thereby completing the precise vertical opening of the corrugated pipe 8.

[0042] Specifically, referring to Figures 3-4 , a compression spring 710 is sleeved outside the guiding rod 79. The end of the guiding rod 79 protrudes and confines the compression spring 710 between the guiding rod 79 and the positioning seat 77. The opening blade 711 is threadedly assembled with the guiding rod 79.

[0043] In this embodiment, the set compression spring 710 can be used to provide damping downward pressure to the guiding rod 79, so that the opening blade 711 can be more precise and more stable when cutting and opening the corrugated pipe 8. In a preferred embodiment, the threaded assembly between the set opening blade 711 and the guiding rod 79 can also replace the opening blade 711 with different blade sizes during use, thereby realizing the matching use for different opening requirements.

[0044] The positioning tool rest of the corrugated pipe opening machine with replaceable blades of the present utility model:

[0045] The first step: In actual use, when the user needs to cut and open the corrugated pipe 8, one end of the corrugated pipe 8 is passed through the limit seat 5 and passes out from the inner limit ring 6, and then one end of the corrugated pipe 8 to be opened is extended to one side of the tool rest assembly 7 and passed through the ring pipe 74;

[0046] Step 2: After one end of the corrugated pipe 8 passes through the annular pipe 74, at this time, due to the support of the annular pipe 74 for the corrugated pipe 8, the opening end of the corrugated pipe 8 can be integrally limited by the annular pipe 74. Subsequently, by pressing the guide rod 79, cooperating with the damping limit of the compression spring 710 on the guide rod 79, and the connection between the guide rod 79 and the opening blade 711, the opening blade 711 can move radially downward until it passes through the blade notch 75 and contacts the to-be-opened end of the corrugated pipe 8;

[0047] Step 3: After the opening blade 711 contacts the outer wall of the corrugated pipe 8, then the user presses the outside of the corrugated pipe 8 and rotates the rotating shaft handle 4. At this time, the threaded lead screw 3 connected to the rotating shaft handle 4 can rotate. When the threaded lead screw 3 rotates, limited by the rectangular groove of the tool holder 1, the slider seat 712 engaged with the outside of the threaded lead screw 3 can move linearly along the stroke range of the tool holder 1, thereby realizing the linear drive of the tool holder assembly 7. At this time, through the movement of the tool holder assembly 7, the opening blade 711 provided on the tool holder assembly 7 can linearly cut the opening end of the corrugated pipe 8, thereby realizing the linear incision of the corrugated pipe 8;

[0048] Step 4: After the corrugated pipe 8 is limited and cut by the tool holder assembly 7, at this time, the user drives the opening machine to pull the corrugated pipe 8. At this time, through the combined limit of the limit seat 5 and the annular pipe 74, the corrugated pipe 8 can be stably opened during cutting and opening, avoiding lateral flipping and twisting, thereby realizing the stable incision of the corrugated pipe 8.

[0049] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning tool holder for a corrugated pipe opening machine with replaceable blades, characterized in that; It includes a tool holder (1) and a tool rest assembly (7); The tool holder (1) is in the shape of a rectangular block, and a rectangular groove is provided on its upper end surface. A threaded lead screw (3) is rotatably arranged in the rectangular groove of the tool holder (1). An external thread of the threaded lead screw (3) is engaged with a slider seat (712), and the slider seat (712) slides in the rectangular groove of the tool holder (1); The tool rest assembly (7) includes a positioning base (71) arranged on the slider seat (712). A ring seat (73) is carried on the positioning base (71). A ring tube (74) is carried on the upper end surface of the ring seat (73). A blade notch (75) is vertically formed on the outer circumferential surface of the ring tube (74) in the transverse direction perpendicular to the tool holder (1); A guide seat (72) is also vertically arranged on the positioning base (71). A stepped plate (76) protrudes from the side surface of the guide seat (72). A positioning seat (77) is arranged on the stepped plate (76). A hole is formed in the positioning seat (77), and a guide rod (79) is slidably arranged in the hole. An opening blade (711) is arranged at the bottom of the guide rod (79); A corrugated pipe (8) is slidably arranged in the tool rest assembly (7).

2. The positioning tool rest of the bellows opening machine with replaceable blades according to claim 1, characterized in that, Two positioning plates (2) are arranged in the rectangular groove of the tool holder (1). Bearing members are respectively fitted in the two positioning plates (2). The two ends of the threaded lead screw (3) are rotatably matched with the bearing members. A limit seat (5) is vertically arranged on the upper end surface of the tool holder (1). A limit inner ring (6) is formed in the limit seat (5). The limit seat (5) and the tool rest assembly (7) are arranged opposite to each other.

3. The positioning tool rest of the corrugated pipe opening machine with replaceable blades according to claim 1, characterized in that, One end of the threaded lead screw (3) penetrates through one of the tool holders (1) and is also connected with a rotating shaft handle (4). A rubber sleeve is sleeved on the outer part of the rotating shaft handle (4).

4. The positioning tool rest of the corrugated pipe opening machine with replaceable blades according to claim 1, characterized in that, A circular ring is formed on the side surface of the guide seat (72). The center of the circular ring and the center of the ring tube (74) are arranged on the same horizontal line. The opening size of the ring tube (74) is larger than the opening size of the ring tube (74); The ring seat (73) is detachably assembled on the positioning base (71) by bolts.

5. The positioning tool rest of the corrugated pipe opening machine with replaceable blades according to claim 1, characterized in that, A groove is formed on the stepped plate (76) for the opening blade (711) to slide. A positioning bolt (78) is threadedly connected to the positioning seat (77). The positioning seat (77) is detachably arranged on the stepped plate (76) by the positioning bolt (78).

6. The positioning tool rest of the corrugated pipe opening machine with replaceable blades according to claim 1, characterized in that, A compression spring (710) is sleeved on the outer part of the guide rod (79). The end of the guide rod (79) protrudes and limits the compression spring (710) between the guide rod (79) and the positioning seat (77). The opening blade (711) is threadedly assembled with the guide rod (79).

Images