High-nickel material exhaust pipe annealing anti-deformation support tool

Abstract

The utility model discloses a kind of high-nickel material exhaust pipe annealing anti-deformation support tool, belong to thin-walled structure annealing tool technical field, for quickly supporting exhaust pipe, including pillow block, support component and locknut, wherein, the clamping of positioning shaft has several hinged hoops, hinged hoop is connected with corresponding support component, to play the role of limiting to fixed support component, and the end of positioning shaft is threadedly connected with locknut, the end of locknut is abutted with adjacent support component, and because several support components head-to-head abut. Wherein, the top of support is rotatably provided with positioning shaft, several support components are sleeved on positioning shaft, when rotating locknut, several support components can be synchronously pushed to expand synchronously, in turn make single support component expand and abut with exhaust pipe inner wall, prevent exhaust pipe from appearing deformation. The utility model has the advantage of fast installation speed compared with prior art, can be adapted to various inner diameter thin-walled structure pipe fittings.

Description

Technical Field

[0001] This utility model relates to the technical field of thin-walled structure annealing fixtures, specifically to a high-nickel material exhaust pipe annealing anti-deformation support fixture. Background Technology

[0002] When manufacturing exhaust pipes made of high-nickel materials, it is necessary to minimize negative weight due to the thin-walled, low-rigidity structure of the exhaust pipe. According to overall requirements, annealing is required after welding the metal exhaust pipe to ensure the internal forming quality of the weld.

[0003] During this process, the external parts will shrink and deform during welding, and the welding stress and cylinder spinning stress will be released outward during shell annealing, which will cause the shell cylinder to deform, ultimately resulting in the metal shell cylinder roundness failing to meet the product precision requirements.

[0004] The existing process mainly uses stress-relief annealing before annealing and sand filling in the tube during annealing to prevent workpiece deformation. However, this method requires a long heat treatment time because the sand absorbs a lot of heat, resulting in significant pollution and slow workpiece clamping speed. In view of this, the applicant proposes a tooling to prevent annealing deformation, which can not only achieve rapid clamping but also effectively shorten the heat treatment process time. Utility Model Content

[0005] To address this issue, this invention provides a high-nickel material exhaust pipe annealing and deformation prevention support fixture, which solves the problems of slow clamping speed and long heat treatment time caused by the existing sand-filled support method for the pipe wall workpiece.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model discloses a high-nickel material exhaust pipe annealing and deformation-resistant support fixture for quickly supporting the exhaust pipe, comprising:

[0008] The pillow block has a bracket attached to its top, and a positioning shaft is rotatably provided on the top of the bracket;

[0009] Several supporting components are fitted end to end onto the positioning shaft, and several hinged clamps are evenly engaged on the positioning shaft along the axial direction.

[0010] The anti-loosening nut has its end abutting and fixed to the support member, and is adapted to push several of the support members to unfold synchronously, with each support member abutting against the inner wall of the exhaust pipe after unfolding.

[0011] Furthermore, the positioning shaft includes a mounting shaft, a slot, and a self-locking thread. The anti-loosening nut and the self-locking thread form a threaded pair. The self-locking thread is located at the tail of the mounting shaft. Several slots are evenly distributed on the outside of the mounting shaft. A hinge clamp is engaged with each slot. The hinge clamp is hinged with several of the supporting components.

[0012] Furthermore, the support member includes:

[0013] The support rod has its tail end hinged to the guard plate and its middle part hinged to one end of the connecting rod. The other end of the connecting rod is hinged to the hinge hoop.

[0014] The outer side of the sliding sleeve is hinged to the other end of the support rod, and the sliding sleeve is slidably sleeved on the mounting shaft.

[0015] Furthermore, the sliding sleeve includes a first hinge position, a sleeve body, and a sliding groove. The sleeve body is slidably sleeved on the mounting shaft, and a plurality of the sliding grooves are provided on the outer side of the sleeve body along the circumferential direction.

[0016] The hinged hoop passes through the slide groove and is hinged to the other end of the connecting rod. The end of the slide groove is provided with a first hinge position, which is hinged to the first end of the support rod.

[0017] Furthermore, the hinge clamp includes a second hinge position and a sleeve clamp, the sleeve clamp is engaged in the slot, and a plurality of second hinge positions are provided on the outside of the sleeve clamp, with each second hinge position passing through the corresponding slide groove and hinged to the other end of the connecting rod.

[0018] Furthermore, the bracket includes an integrally molded frame and a rotary joint. Two rotary joints are installed at both ends of the support rod, and two integrally molded frames are rotatably mounted on the rotary joints. The bottom of the integrally molded frame is snapped and fixed to the pillow block.

[0019] Furthermore, the pillow block is made of cast iron and has multiple limiting grooves.

[0020] This utility model has the following advantages:

[0021] This utility model discloses a high-nickel material exhaust pipe annealing anti-deformation support fixture. It mainly uses multiple support components continuously installed on the positioning shaft. These support components unfold inside the exhaust pipe and abut against the inner wall of the exhaust pipe, thereby avoiding the deformation of thin-walled pipe components due to stress during heat treatment. Compared with the prior art, which uses sand filling to fix the workpiece, the support fixture proposed in this utility model can be quickly unfolded and fixed, and is more flexible in use. It also avoids the sand filling absorbing heat and improves the efficiency of heat treatment. Attached Figure Description

[0022] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0023] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0024] Figure 1 A three-dimensional view of the high-nickel material exhaust pipe annealing anti-deformation support fixture provided for this utility model;

[0025] Figure 2 A three-dimensional view of the supporting tooling assembly provided by this utility model;

[0026] Figure 3 A perspective view of the supporting component provided by this utility model;

[0027] Figure 4 A perspective view of the sliding sleeve provided for this utility model;

[0028] Figure 5 A perspective view of the positioning shaft provided by this utility model;

[0029] Figure 6 A perspective view of the protective plate provided for this utility model;

[0030] In the diagram: 1 Pillow block; 2 Bracket; 21 Integrated frame; 22 Rotary joint; 3 Support component; 31 Support rod; 32 Connecting rod; 33 Sliding sleeve; 331 First hinge position; 332 Sleeve body; 333 Slide groove; 34 Protective plate; 4 Exhaust pipe; 5 Anti-loosening nut; 6 Positioning shaft; 61 Mounting shaft; 62 Slot; 63 Self-locking thread; 7 Hinge clamp; 71 Second hinge position; 72 Sleeve clamp. Detailed Implementation

[0031] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] Please refer to this as well. Figures 1-6 This utility model discloses a high-nickel material exhaust pipe annealing anti-deformation support fixture for quickly supporting the exhaust pipe. It includes a support block 1, support members 3, and anti-loosening nuts 5. A positioning shaft 6 is rotatably mounted on the top of the support block 2. Several support members 3 are sleeved on the positioning shaft 6, connected end-to-end, and can unfold within the exhaust pipe 4 to support the exhaust pipe 4 and prevent deformation. Several hinge clamps 7 are engaged with the positioning shaft 6, each hinge clamp being fixedly hinged to its corresponding support member 3, thus limiting the position of the fixed support member 3. Furthermore, since the end of the positioning shaft 6 is threaded with an anti-loosening nut 5, the end of the anti-loosening nut 5 abuts against the adjacent support member 3. Because the several support members 3 abut end-to-end on the positioning shaft 6, rotating the anti-loosening nut 5 simultaneously pushes the several support members to unfold, allowing each unfolded support member 3 to abut against the inner wall of the exhaust pipe 4.

[0033] In some embodiments, such as Figure 1 The bottom of the support 2 is provided with a pillow block 1, which is made of cast iron and has good heat resistance and stability. The pillow block 1 is provided with multiple limiting grooves, which abut against the integrally formed frame 21 to limit the support 2. The support 2 includes an integrally formed frame 21 and a rotary joint 22. Two rotary joints 22 are installed at both ends of the support rod 31. Two integrally formed frames 21 are rotatably mounted on the rotary joints 22. The bottom of the integrally formed frame 21 is snapped and fixed to the pillow block 1. In this embodiment, the two integrally formed frames 21 and the rotary joints 22 form a scissor mechanism, and the pillow block 1 is used to adjust the posture of the support 2. By embedding the integrally formed frame 21 into different limiting grooves, the height of the support 2 can be adjusted.

[0034] In one specific embodiment disclosed in this utility model, such as Figure 5 The positioning shaft 6 includes a mounting shaft 61, a slot 62, and a self-locking thread 63. The anti-loosening nut 5 and the self-locking thread 63 form a threaded pair. Rotating the anti-loosening nut 5 allows it to be screwed in to push the support member 3. The self-locking thread 63 is located at the tail of the mounting shaft 61. Several slots 62 are evenly distributed on the outside of the mounting shaft 61. A hinge clamp 7 is engaged in the slots 62, and the hinge clamp 7 is hinged to several support members 3.

[0035] In this embodiment, optionally, the mounting shaft 61 is formed by connecting several identical short shafts end to end, and can be disassembled. The connection position is on the slot 62, which facilitates tooling storage and allows for free assembly according to the length of the exhaust pipe 4.

[0036] In some embodiments, such as Figure 3 The hinge 7 includes a second hinge position 71 and a sleeve 72. The sleeve 72 is engaged within the slot 62, and several second hinge positions 71 are provided on the outside of the sleeve 72. Each second hinge position 71 passes through a corresponding slide groove 333 and is hinged to the other end of the connecting rod 32. In this embodiment, the second hinge position 71 and the corresponding slide groove 333 form a guide pair, which is used to drive the support member 3z to unfold.

[0037] Based on the previous embodiment, such as Figure 6 The support member 3 includes a support rod 31 and a sliding sleeve 33. The tail end of the support rod 31 is hinged to the guard plate 34, and the middle part is hinged to one end of the connecting rod 32. The other end of the connecting rod 32 is hinged to the second hinge position 71 of the hinge hoop 7. The other end of the support rod 31 is hinged to the outside of the sliding sleeve 33, and the sliding sleeve 33 is slidably fitted on the mounting shaft 61.

[0038] In this embodiment, the sliding sleeve 33 includes a first hinge position 331, a sleeve body 332, and a sliding groove 333. The sleeve body 332 is slidably provided on the mounting shaft 61. A plurality of sliding grooves 333 are provided on the outer side of the sleeve body 332 along the circumferential direction. The hinge clamp 7 passes through the sliding groove 333 and is hinged to the other end of the connecting rod 32. The end of the sliding groove 333 is provided with a first hinge position 331, which is hinged to the first end of the support rod 31. When the sleeve body 332 slides along the mounting shaft 61, the support rod 31 can be extended outward, thereby driving the guard plate 34 to abut against the inner wall of the exhaust pipe 4.

[0039] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A high-nickel material exhaust pipe annealing and deformation-resistant support fixture, used for quickly supporting the exhaust pipe (4), characterized in that, include: The pillow block (1) has a bracket (2) attached to its top, and a positioning shaft (6) is rotatably provided on the top of the bracket (2). Supporting components (3), in several quantities, are sleeved on the positioning shaft (6) end to end. The positioning shaft (6) is uniformly clamped with several hinged hoops (7) along the axial direction. The anti-loosening nut (5) is fixed at its end to the support member (3) and is adapted to push several of the support members (3) to unfold synchronously. After unfolding, a single support member (3) abuts against the inner wall of the exhaust pipe (4).

2. The high-nickel material exhaust pipe annealing anti-deformation support fixture as described in claim 1, characterized in that, The positioning shaft (6) includes a mounting shaft (61), a slot (62), and a self-locking thread (63). The anti-loosening nut (5) and the self-locking thread (63) form a threaded pair. The self-locking thread (63) is located at the tail of the mounting shaft (61). Several slots (62) are evenly arranged on the outside of the mounting shaft (61). A single slot (62) is fitted with a hinge clamp (7). The hinge clamp (7) is hinged to several support members (3).

3. The high-nickel material exhaust pipe annealing anti-deformation support fixture as described in claim 2, characterized in that, The supporting member (3) includes: The support rod (31) is hinged at its tail end to the guard plate (34) and at its middle end to one end of the connecting rod (32). The other end of the connecting rod (32) is hinged to the hinge hoop (7). The sliding sleeve (33) is hinged to the other end of the support rod (31) on the outside, and the sliding sleeve (33) is slidably sleeved on the mounting shaft (61).

4. The high-nickel material exhaust pipe annealing anti-deformation support fixture as described in claim 3, characterized in that, The sliding sleeve (33) includes a first hinge position (331), a sleeve body (332) and a sliding groove (333). The sleeve body (332) is slidably sleeved on the mounting shaft (61). A plurality of sliding grooves (333) are provided on the outside of the sleeve body (332) along the circumferential direction. The hinge hoop (7) passes through the slide groove (333) and is hinged to the other end of the connecting rod (32). The end of the slide groove (333) is provided with a first hinge position (331), which is hinged to the first end of the support rod (31).

5. The high-nickel material exhaust pipe annealing anti-deformation support fixture as described in claim 4, characterized in that, The hinge clamp (7) includes a second hinge position (71) and a sleeve (72). The sleeve (72) is engaged in the slot (62). A plurality of second hinge positions (71) are provided on the outside of the sleeve (72). A single second hinge position (71) passes through the corresponding slide groove (333) and is hinged to the other end of the connecting rod (32).

6. The high-nickel material exhaust pipe annealing anti-deformation support fixture as described in claim 5, characterized in that, The bracket (2) includes an integrally molded frame (21) and a rotary joint (22). Two rotary joints (22) are installed at both ends of the support rod (31). Two integrally molded frames (21) are rotatably arranged on the rotary joints (22). The bottom of the integrally molded frame (21) is snapped and fixed on the pillow block (1).

7. The high-nickel material exhaust pipe annealing anti-deformation support fixture as described in claim 1, characterized in that, The pillow block (1) is made of cast iron and has multiple limiting grooves.

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