Pipe fitting auxiliary fixing mechanism for top pier pipe bending machine

Abstract

The utility model discloses a pipe fitting auxiliary fixing mechanism for a top pier pipe bending machine, and relates to the technical field of pipe fitting auxiliary fixing of the top pier pipe bending machine. The pipe fitting auxiliary fixing mechanism for the top pier pipe bending machine comprises a machining connecting base installed on the top pier pipe bending machine, a limiting mechanism used for auxiliary fixing of the top pier pipe bending machine is arranged at the top of the machining connecting base, the limiting mechanism is composed of a clamping module and an auxiliary module, the clamping module comprises a sliding block, and the sliding block is provided with a vertical plate with the middle penetrating into a protective cylinder. A limiting shell is welded to the end, close to the top pier pipe bending machine, of the protection barrel, a limiting area is formed by the limiting shell and the protection barrel, and a clamping assembly is installed in the limiting area. The linkage rod welded to the protective barrel moves along with the limiting shell through the clamping module, the clamping connecting rod integrally expands towards the circle center of the limiting shell or gets away from the circle center of the limiting shell when the protective barrel rotates, rapid adjustment can be achieved when pipe diameters with different inner diameters are introduced, and the adjusting convenience and clamping stability of the whole device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary fixing of pipe fittings for a top pier pipe bender, in particular to an auxiliary fixing mechanism for pipe fittings for a top pier pipe bender. Background Art

[0002] A pier pipe bender is a machine that bends pipes. It typically consists of a main die, a clamping die, a press guide die, a forging mechanism, a forging clamping die, and an anti-wrinkle die. During operation, the pier pipe bender clamps the pipe using the main die and clamping die. The main die rotates to bend the pipe, and the clamping die rotates synchronously with the main die. Once the pipe is bent, the clamping die separates from the main die and rotates back to its original position.

[0003] For example, the bidirectional same-R top pier bending machine mold disclosed in Chinese patent publication number CN202571013U is arranged between the upper mold and the lower mold through the middle mold, and cooperates with the upper mold and the lower mold; it also includes a retractable push rod; the push rod passes through the lower mold and the middle mold; the lower end of the push rod is fixed on the rotating body, and its upper end is fixed to the middle mold; the cross-sections of the mold cavity formed by the upper mold and the middle mold and the mold cavity formed by the middle mold and the lower mold are both closed; the top pier bending machine mold with the above structure integrates the side mold, which makes the structure of the entire mold simpler and more convenient to use and maintain.

[0004] The linkage between the middle die and the upper and lower dies completes the closed die cavity and simplifies the die design for pipe bending. However, during the process of abutting the pipe, the existing top pier pipe bending machine has a limiting effect on the tail of the pipe to the pushed pipe module. Without a corresponding auxiliary fixing mechanism, it is easy for the pipe to become disengaged during the bending process, resulting in pipe bending failure. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present invention provides a pipe auxiliary fixing mechanism for a top pier pipe bending machine, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a pipe auxiliary fixing mechanism for a top pier pipe bender, comprising a processing connection seat installed on the top pier pipe bender, a limiting mechanism for auxiliary fixing of the top pier pipe bender provided on the top of the processing connection seat, the limiting mechanism consisting of a clamping module for fixing the tail of the pipe and an auxiliary module for clamping the stepped shaft, the clamping module and the auxiliary module both being installed on the processing connection seat;

[0007] The clamping module includes a slider symmetrically arranged on the top of the processing connecting seat and threadedly connected to the screw. The other end of the connecting screw rotates on the fixed block. The slider is welded with a vertical plate with a protective tube passing through the middle. The protective tube is welded with a limiting shell at one end close to the top pier pipe bender. The limiting shell and the protective tube form a limiting area, and the clamping assembly is installed in the limiting area.

[0008] A further improvement of the technical solution of the present utility model is that: the clamping assembly includes a clamping link slidingly located in the limiting area, a hinge shaft hinged to one end of the clamping link, and a linkage rod welded to the limiting shell and limitedly connected to the clamping link, and the other end of the hinge shaft is fixedly mounted on the vertical plate;

[0009] In this embodiment, the number of clamping links used for clamping depends on the number of limiting areas;

[0010] A further improvement of the technical solution of the present utility model is that: the protective tube rotates in the through groove of the vertical plate, and a limiting shaft is provided at the end of the clamping link away from the hinge shaft, and a pipe limiting block with an arc-shaped inner end face is provided on the limiting shaft; in this process, the pipe limiting block of the clamping link will firmly clamp the pipe passed into the protective tube, and can be quickly adjusted when pipes with different inner diameters are passed in, thereby improving the convenience of adjustment of the overall device.

[0011] A further improvement of the technical solution of the present utility model is that the auxiliary module includes a bending guide rail fixedly installed on the top of the processing connection seat, and support plates for installation are symmetrically arranged on the bending guide rail. A disc seat for the middle part of the pipe fitting to pass through is provided at the bottom of the support plate, and a plurality of engaging grooves are arranged in an array on the disc seat.

[0012] A further improvement of the technical solution of the present utility model is that: a guide rod for guiding is installed in the interlocking groove, and a spring is sleeved on the guide rod, the other end of which is fixedly connected to the adjusting block, wherein the adjusting block is threadedly connected with a positioning screw for fixing the distance, and the bottom end of the positioning screw is connected to the abutment block through a bearing; due to the differences in pipe types, when the top pier pipe bending machine processes pipes with concave and convex properties such as stepped shafts, although the tail is auxiliary fixed by the cooperation of the external push rod module and the clamping module, it is often difficult to exert force on the middle part. Therefore, in response to this situation, the specific solution adopted in this embodiment is that the positioning screw determines the control of the abutment block on the abutment inner diameter of the pipe, and the guided sliding of the adjusting block in the interlocking groove determines the control of the abutment block on the abutment position of the pipe, thereby realizing the auxiliary fixing operation of the middle part of different pipe diameters.

[0013] A further improvement of the technical solution of the utility model is that: in order to prevent the adjustment block from sliding in the fitting groove due to external influences, the disk seat is provided with positioning holes arranged in a circular array, and a positioning rod passing through the adjustment block hole is passed into the positioning hole.

[0014] Beneficial effects

[0015] The utility model provides a pipe fitting auxiliary fixing mechanism for a pier pipe bender. Compared with the prior art, it has the following advantages:

[0016] 1. The top pier pipe bending machine uses a pipe auxiliary fixing mechanism. The linkage rod welded on the protective cylinder moves with the limit shell through the clamping module. The clamping rod expands or moves away from the center of the limit shell as a whole when the protective cylinder rotates, and can be quickly adjusted when different inner diameter pipes are passed in, thereby improving the convenience of adjustment of the overall device and the stability of clamping.

[0017] 2. The top pier pipe bending machine uses a pipe auxiliary fixing mechanism. The positioning screw in the auxiliary module determines the control of the abutment block on the inner diameter of the pipe. The guiding sliding of the adjustment block in the fitting groove determines the control of the abutment block on the abutment position of the pipe, thereby realizing the middle auxiliary fixing operation of different pipe diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a left view of the utility model;

[0020] Figure 3 This is an enlarged schematic diagram of the clamping module of the present invention;

[0021] Figure 4 This is a structural diagram of the auxiliary module of the utility model.

[0022] In the figure: 1. Processing the connecting seat;

[0023] 201a, slider; 201b, connecting screw; 201c, fixing block;

[0024] 202a, protective tube; 202b, vertical plate; 202c, limiting area; 202d, limiting shell;

[0025] 202c-1, clamping link; 202c-2, hinge shaft; 202c-3, linkage rod;

[0026] 202c-1a, limit shaft; 202c-1b, pipe limit block;

[0027] 301a, bending guide rail; 301b, support plate; 301c, disc seat; 301d, fitting groove;

[0028] 302a, guide rod; 302b, adjustment block; 302c, spring;

[0029] 302b-1, positioning screw; 302b-2, abutment block;

[0030] 301c-1, positioning port; 301c-2, positioning rod. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1-Figure 4 , this utility model provides three technical solutions:

[0033] Example 1:

[0034] A pipe auxiliary fixing mechanism for a top pier pipe bender includes a processing connection seat 1 installed on the top pier pipe bender. A limiting mechanism for auxiliary fixing of the top pier pipe bender is provided on the top of the processing connection seat 1. The limiting mechanism consists of a clamping module for fixing the tail of the pipe and an auxiliary module for clamping the stepped shaft. The clamping module and the auxiliary module are both installed on the processing connection seat 1.

[0035] The clamping module includes a slider 201a symmetrically arranged on the top of the processing connecting seat 1 and threadedly connected to the screw 201b, the other end of the connecting screw 201b rotates on the fixed block 201c, the slider 201a is welded with a vertical plate 202b with a protective tube 202a passing through the middle, and a limiting shell 202d is welded to one end of the protective tube 202a close to the top pier pipe bending machine. The limiting shell 202d and the protective tube 202a form a limiting area 202c, and the clamping assembly is installed in the limiting area 202c.

[0036] The clamping assembly includes a clamping link 202c-1 slidingly located in the limit area 202c, a hinge shaft 202c-2 hinged to one end of the clamping link 202c-1, and a linkage rod 202c-3 welded to the limit shell 202d and limitedly connected to the clamping link 202c-1. The other end of the hinge shaft 202c-2 is fixedly mounted on the vertical plate 202b.

[0037] In this embodiment, the number of clamping links 202c-1 used for clamping depends on the number of limiting areas 202c;

[0038] Preferably, for the control of the common clamping structure, the clamping link 202c-1 is individually connected to the corresponding stroke components such as the cylinder. In this embodiment, since the protective cylinder 202a rotates in the vertical plate 202b, the linkage rod 202c-3 welded on the protective cylinder 202a moves with the limit shell 202d during the rotation, so the linkage rod 202c-3 pushes the connected clamping link 202c-1 to rotate on the hinge shaft 202c-2. From the overall point of view, the clamping link 202c-1 expands or moves away from the center of the limit shell 202d as a whole when the protective cylinder 202a rotates.

[0039] The protective tube 202a rotates in the through groove of the vertical plate 202b, and a limit shaft 202c-1a is provided at one end of the clamping link 202c-1 away from the hinge shaft 202c-2, and a pipe limit block 202c-1b with an arc-shaped inner end surface is provided on the limit shaft 202c-1a.

[0040] In summary, during this process, the pipe limit block 202c-1b of the clamping connecting rod 202c-1 firmly clamps the pipe passing through the protective tube 202a, and can be quickly adjusted when pipes with different inner diameters are passed in, thereby improving the convenience of adjustment of the entire device.

[0041] Example 2:

[0042] Based on Example 1: the auxiliary module includes a bending guide rail 301a fixedly installed on the top of the processing connection seat 1, and a support plate 301b for installation is symmetrically arranged on the bending guide rail 301a. A disc seat 301c for the middle part of the pipe to pass through is provided at the bottom of the support plate 301b, and a plurality of interlocking grooves 301d are arranged in an array on the disc seat 301c.

[0043] A guide rod 302a for guiding is installed in the interlocking groove 301d, and a spring 302c is sleeved on the guide rod 302a, the other end of which is fixedly connected to the adjustment block 302b, wherein the adjustment block 302b is threadedly connected with a positioning screw 302b-1 for fixing the distance, and the bottom end of the positioning screw 302b-1 is connected to the abutment block 302b-2 through a bearing.

[0044] It should be noted that due to the differences in pipe types, when the top pier pipe bending machine processes pipes with convex and concave features such as stepped shafts, although the tail is assisted in fixing by the cooperation of the external push rod module and the clamping module, it is often difficult to exert force on the middle part. Therefore, in response to this situation, the specific solution adopted in this embodiment is that the positioning screw 302b-1 determines the control of the abutment inner diameter of the pipe by the abutment block 302b-2, and the guided sliding of the adjustment block 302b in the engaging groove 301d determines the control of the abutment position of the pipe by the abutment block 302b-2, thereby realizing the auxiliary fixing operation of the middle part of pipes of different diameters.

[0045] Example 3:

[0046] On the basis of Example 1 and Example 2: In order to prevent the adjustment block 302b from sliding in the interlocking groove 301d due to external influences, positioning holes 301c-1 are arranged in a circular array on the disk base 301c, and a positioning rod 301c-2 that passes through the hole groove of the adjustment block 302b is passed into the positioning hole 301c-1.

[0047] At the same time, the contents not described in detail in this specification belong to the existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used.

[0048] During use, the pipe fitting is passed through the protective tube 202a on the vertical plate 202b. At this time, the protective tube 202a is rotated according to the inner diameter of the pipe fitting. As the protective tube 202a rotates in the vertical plate 202b, the linkage rod 202c-3 welded on the protective tube 202a moves with the limit shell 202d. Therefore, the linkage rod 202c-3 pushes the connected clamping link 202c-1 to rotate on the hinge shaft 202c-2. Finally, the pipe fitting limit block 202c-1b connected to the clamping link 202c-1 is adjusted to the optimal position to complete the tail limit of the pipe fitting. Under the push of the pushed tube module, if the pipe fitting has a stepped shaft, the positioning screw 302b-1 and the sliding adjustment block 302b are rotated according to the distribution and position of the end face of the stepped shaft. Finally, after the abutment block 302b-2 completes the abutment against the outer wall of the pipe fitting, the positioning rod 301c-2 is inserted.

[0049] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0050] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipe auxiliary fixing mechanism for a top pier pipe bender, comprising a processing connection seat (1) mounted on the top pier pipe bender, characterized in that: A limiting mechanism for auxiliary fixation of the top pier pipe bender is provided on the top of the processing connection seat (1); the limiting mechanism is composed of a clamping module for fixing the tail of the pipe fitting and an auxiliary module for clamping the stepped shaft; the clamping module and the auxiliary module are both installed on the processing connection seat (1); The clamping module comprises a slider (201a) symmetrically arranged on the top of the processing connection seat (1) and threadedly connected to a screw (201b); the other end of the connecting screw (201b) rotates on a fixed block (201c); the slider (201a) is welded with a vertical plate (202b) whose middle part passes through a protective tube (202a); a limiting shell (202d) is welded to one end of the protective tube (202a) close to the top pier pipe bending machine; the limiting shell (202d) and the protective tube (202a) form a limiting area (202c); and a clamping assembly is installed in the limiting area (202c).

2. The pipe auxiliary fixing mechanism for a top pier pipe bender according to claim 1, characterized in that: The clamping assembly comprises a clamping link (202c-1) slidingly located in a limiting area (202c), a hinge shaft (202c-2) hinged to one end of the clamping link (202c-1), and a linkage rod (202c-3) welded to a limiting shell (202d) and connected to the clamping link (202c-1) in a limiting manner; the other end of the hinge shaft (202c-2) is fixedly mounted on a vertical plate (202b).

3. The pipe auxiliary fixing mechanism for a top pier pipe bender according to claim 2, characterized in that: The protective tube (202a) rotates in the through groove of the vertical plate (202b), and a limiting shaft (202c-1a) is provided at one end of the clamping link (202c-1) away from the hinge shaft (202c-2), and a pipe limiting block (202c-1b) with an arc-shaped inner end surface is provided on the limiting shaft (202c-1a).

4. The pipe auxiliary fixing mechanism for a top pier pipe bender according to claim 1, characterized in that: The auxiliary module comprises a bending guide rail (301a) fixedly mounted on the top of the processing connection seat (1); a support plate (301b) for mounting is symmetrically arranged on the bending guide rail (301a); a disc seat (301c) for the middle of the pipe fitting to pass through is arranged at the bottom of the support plate (301b); and a plurality of engaging grooves (301d) are arranged in an array on the disc seat (301c).

5. The pipe auxiliary fixing mechanism for a top pier pipe bender according to claim 4, characterized in that: A guide rod (302a) for guiding is installed in the interlocking groove (301d), and a spring (302c) is sleeved on the guide rod (302a), the other end of which is fixedly connected to the adjustment block (302b), wherein a positioning screw (302b-1) for fixing the distance is threadedly connected on the adjustment block (302b), and the bottom end of the positioning screw (302b-1) is connected to the abutment block (302b-2) via a bearing.

6. The pipe auxiliary fixing mechanism for a top pier pipe bender according to claim 5, characterized in that: Positioning openings (301c-1) are arranged in a circular array on the disc seat (301c), and positioning rods (301c-2) passing through the hole groove of the adjustment block (302b) are inserted into the positioning openings (301c-1).

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