Anti-deformation device for heat treatment of splayed part
By designing a heat treatment and deformation prevention device for aviation products, the limiting mechanism and pull rod are used to form a T-shaped reinforcement, the problem of dimensional deformation of the eight-shaped parts during the heat treatment process is solved, and the stability and dimensional control effect of the structure are achieved .
Patent Information
- Application Number
- CN202323392698.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-12
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2033-12-12
AI Technical Summary
During the heat treatment process, the eight-shaped parts in aviation products are prone to thermal expansion and contraction, resulting in volume changes, resulting in larger sizes. There are great risks in traditional mechanical methods to correct and it is difficult to effectively prevent deformation.
A heat treatment and deformation prevention device including a first limiting mechanism and a second limiting mechanism is designed. Through the combination of the connecting rod and the limiting member, the internal and external deformation of the eight-shaped part is restricted, and a T-shaped reinforcement is formed by using a tie rod and a connecting rod. Ensure the structure is secure in the vertical direction and prevents dimensional changes.
Effectively prevent the dimensional changes of eight-shaped parts during heat treatment, improve the processing stability and pass rate of dimensional control, simple structure and convenient operation, and significantly reduce deformation risks after installation.
Smart Images
Figure CN222294132U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a heat treatment anti-deformation device for an eight-shaped part, belonging to the technical field of heat treatment processing. Background Art
[0002] like Figure 1-Figure 2 As shown, the figure-eight part described in the utility model is a commonly used part in aviation products. The figure-eight part 9 includes a figure-eight leg 94, an ear plate 92 is provided on the left and right sides of the top of the figure-eight leg 94, and an ear plate hole is opened at the center position of the ear plate 92, and a semicircular ear plate 93 is provided on the left and right sides of the bottom end of the figure-eight leg 94, and the left and right figures-eight legs 94 are connected by a connecting reinforcement rib 91 provided in the middle of the two figure-eight legs.
[0003] In the production process of aviation products, it is necessary to heat treat the figure-eight parts. Since the center of gravity of the structural parts is unevenly distributed and the shape is complex, volume changes and structural transformations due to thermal expansion and contraction will occur during the heat treatment process. The change in volume caused by the tolerance between the old and new parts causes the size of the figure-eight structure to become larger after heat treatment, the figure-eight legs to open, and the key dimensions to be seriously out of tolerance and unable to be processed. There are great risks in using a press to correct it using traditional mechanical methods. Due to the existence of phase change, thermal stress, and structural stress during the heat treatment process, deformation is very likely to occur in the heat treatment process, and heat treatment deformation of figure-eight structural parts is inevitable. Traditional anti-deformation ideas do not play a good role for this type of structure. Utility Model Content
[0004] The utility model aims to provide a heat treatment anti-deformation device for an eight-shaped part, so as to solve the technical problem that the eight-shaped structural parts are easy to be deformed during the heat treatment process.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A device for preventing deformation of a figure-eight part during heat treatment, comprising a first limiting mechanism for preventing deformation of the top of the figure-eight part and a second limiting mechanism for preventing deformation of the bottom of the figure-eight part; the first limiting mechanism and the second limiting mechanism both comprise a connecting rod, the connecting rod being provided with a first limiting member for preventing the figure-eight part from deforming inwards and a second limiting member for preventing the figure-eight part from deforming outwards; in a working state, the first limiting member is arranged on the inner side of the figure-eight part, and the second limiting member is arranged on the outer side of the figure-eight part; a fastener for limiting the position of the second limiting member is arranged on the side of the second limiting member away from the figure-eight part; a pull rod is arranged in the middle of the connecting rod of the second limiting mechanism, and in a working state, the upper end of the pull rod is hung on the connecting reinforcement rib on the upper part of the figure-eight part, and the lower end of the pull rod is fixed to the connecting rod by a nut.
[0007] Therefore, the utility model of the heat treatment anti-deformation device for the figure-eight part of the utility model supports the ear plate at the top of the figure-eight part through the first limiting piece on the first limiting mechanism. The shape of the first limiting piece is fixed, and the relative position with the connecting rod is fixed, which can prevent the top of the figure-eight part from deforming inward; the second limiting piece is arranged on the outside of the figure-eight part, and under the restriction of the fastener, it can prevent the top of the figure-eight part from deforming outward; the upper end of the pull rod is hung on the connecting reinforcement rib on the upper part of the figure-eight part, and the lower end is fixed with the position of the connecting rod, and cooperates with the connecting rod to form a T-structure, so that the entire figure-eight part structure is pulled by the middle pull rod in the vertical direction to ensure vertical firmness.
[0008] According to the embodiments of the present invention, the present invention can be further optimized. The following is the technical solution formed after optimization:
[0009] Specifically, the first limiting member in the first limiting mechanism is a limiting cylinder, the limiting cylinder is sleeved on the connecting rod, and both ends of the limiting cylinder extend to the inner side walls of the left and right ear plates of the eight-shaped part respectively.
[0010] Specifically, the second limiting member in the first limiting mechanism is a T-shaped bushing sleeved on the connecting rod.
[0011] Specifically, the first limiting member in the second limiting mechanism is an inner limiting plate fixedly arranged on the connecting rod, and the inner limiting plate is fixedly arranged at the left and right ends of the connecting rod, and the distance between the left and right inner limiting plates is the standard distance at the bottom of the splayed legs of the splayed parts.
[0012] Specifically, the second limiting member in the second limiting mechanism is an outer blocking piece sleeved on the connecting rod.
[0013] Specifically, the fastener is threadedly connected to the connecting rod.
[0014] Specifically, the upper end of the pull rod is provided with a hook for hanging on the upper connecting reinforcement rib of the figure-eight part.
[0015] Specifically, a through hole is opened in the middle of the connecting rod in the second limiting mechanism, the lower end of the pull rod passes through the through hole, and a nut is arranged at the lower end of the pull rod.
[0016] Compared with the prior art, the beneficial effects of the utility model are:
[0017] 1) The utility model of the heat treatment anti-deformation device for the eight-shaped parts limits the inner and outer sides of the top and bottom of the eight-shaped parts, and forms a T-shaped reinforcement between the pull rod and the connecting rod, so that the upper and lower ends of the eight-shaped legs are connected to each other to form an integral structure to ensure the upper limit of the horizontal and vertical directions of the two sides of the eight-shaped parts, ensure the structure is firm, and avoid dimensional changes. It is convenient to disassemble, and the anti-deformation effect is obvious after installation, and the heat treatment deformation control has a high one-time pass rate.
[0018] 2) The utility model has a simple structure and is easy to operate. It can effectively prevent the size of the figure-eight parts from changing during heat treatment. The coordinated use of the entire device ensures that the figure-eight structure can be stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the front view structure of the eight-shaped part in the background technology of the utility model;
[0020] Figure 2 It is a side view structural diagram of an eight-shaped part in the background technology of the utility model;
[0021] Figure 3 It is a schematic diagram of the working state structure of the utility model;
[0022] Figure 4 It is a structural schematic diagram of the first limiting mechanism of the utility model;
[0023] Figure 5 It is a structural schematic diagram of the second limiting mechanism of the utility model;
[0024] Figure 6 It is a structural schematic diagram of the limit cylinder of the utility model;
[0025] Figure 7 It is a structural schematic diagram of the T-type bushing of the utility model;
[0026] Figure 8 It is a structural schematic diagram of the inner baffle of the utility model;
[0027] Fig. 9 It is a structural schematic diagram of the pull rod of the utility model.
[0028] In the figure
[0029] 1-first limiting mechanism; 2-second limiting mechanism; 3-connecting rod; 31-through hole; 4-first limiting member; 41-limiting cylinder; 42-inner baffle; 5-second limiting member; 51-T-type bushing; 52-outer baffle; 6-fastener; 7-pull rod; 71-bend hook; 8-nut; 9-figure eight part; 91-connecting reinforcement rib; 92-ear plate; 93-semicircular ear plate; 94-figure eight leg. DETAILED DESCRIPTION
[0030] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict. For the convenience of description, if the words "upper", "lower", "left" and "right" appear in the following text, they only indicate that the upper, lower, left and right directions are consistent with the drawings themselves, and do not limit the structure.
[0031] like Figure 3 As shown, the anti-deformation device for heat treatment of figure-eight parts in this embodiment includes a first limiting mechanism 1 for preventing the top of the figure-eight part from deforming and a second limiting mechanism 2 for preventing the bottom of the figure-eight part 9 from deforming; the first limiting mechanism 1 and the second limiting mechanism 2 both include a connecting rod 3, and the connecting rod 3 is provided with a first limiting member 4 for preventing the figure-eight part 9 from deforming inwardly and a second limiting member 5 for preventing the figure-eight part from deforming outwardly.
[0032] like Figure 4 As shown, the first limiting member 4 in the first limiting mechanism 1 is a limiting tube 41, which is sleeved on the connecting rod 3, and the two ends of the limiting tube 41 extend to the inner side walls of the left and right ear plates 92 of the figure-eight part 9 respectively; the first limiting member 4 in the second limiting mechanism 2 is an inner baffle 42 fixedly arranged on the connecting rod 3, and the inner baffle 42 is fixedly arranged at the left and right ends of the connecting rod 3, and the distance between the two inner baffles 42 on the left and right is the standard distance at the bottom of the figure-eight legs 94 of the figure-eight part.
[0033] In the working state, the first limiting member 4 is arranged on the inner side of the figure-eight part 9 and connected with the inner side of the figure-eight part 9 , and the second limiting member 5 is arranged on the outer side of the figure-eight part 9 .
[0034] like Figure 5 As shown, a fastener 6 for limiting the position of the second limiter 5 is provided on the side of the second limiter 5 away from the eight-shaped part 9; the second limiter 5 in the first limiter mechanism 1 is a T-shaped bushing 51 sleeved on the connecting rod 3; the second limiter 5 in the second limiter mechanism 2 is an outer stopper 52 sleeved on the connecting rod 3. The fastener 6 is threadedly connected to the connecting rod 3.
[0035] A pull rod 7 is provided in the middle of the connecting rod 3 of the second limiting mechanism 2. When in working state, the upper end of the pull rod 7 is hung on the connecting reinforcement rib 91 on the upper part of the figure-eight part 9. The upper end of the pull rod 7 is provided with a hook 71 for hanging on the connecting reinforcement rib 91 on the upper part of the figure-eight part 9. A through hole 31 is opened in the middle of the connecting rod 3 in the second limiting mechanism 2. The lower end of the pull rod 7 passes through the through hole 31, and a nut 8 is provided at the lower end of the pull rod 7.
[0036] The connecting rod 3 passes through the two ear plates 92 at the upper ends of the splayed legs, and a limiting cylinder 41 is installed on the connecting rod 3 in the middle of the ear plates 92; a bushing 51 is installed outside the ear plates 92 of the splayed legs, and the bushing 51 passes through the connecting rod 3 and is fastened with a fastener 6, and the fastener 6 is a nut to ensure that the upper end of the splayed leg neither opens outwards nor contracts inwards. The bushing 51 is preferably a T-shaped bushing.
[0037] like Figure 4-Figure 9 As shown, an inner stopper 42 is welded on the connecting rod 3 in the second limiting mechanism 2 to ensure that the whole is firm after welding. A through hole 31 is opened in the middle of the connecting rod 3 for the pull rod 7 to pass through, and both ends are threaded. The thread is preferably a coarse thread to prevent the nut combined with the thread from being too tight to be disassembled after heat treatment.
[0038] The inner stopper 42 on the connecting rod 3 in the second limiting mechanism 2 blocks the inner side of the lower end of the splayed leg 94 to prevent the splayed leg 94 from shrinking inwards. The pull rod 5 passes through the through hole 31 to ensure the stability of the device in the vertical direction.
[0039] The outer stopper 52 blocks the outer side of the lower end of the splayed leg to prevent the splayed leg from opening outwards. The connecting rod 3 is installed on the semicircular ear plate 93 at the lower end of the splayed leg, and the fastening nut 6 is installed outside to limit the horizontal direction of the lower end of the splayed structure to ensure that the size neither opens outwards nor shrinks inwards.
[0040] The pull rod 7 is used to pass through the through hole 31 in the middle of the connecting rod 3. The hook 71 of the upper end of the pull rod is hung on the connecting reinforcement rib 91, and the other end is provided with a threaded mounting hook pull rod nut 8. The entire structure is pulled by the middle connecting reinforcement rib 91 in the vertical direction to ensure vertical stability. It cooperates with the connecting rod 3 in the second limiting mechanism 2 to form a T-shaped structure.
[0041] Taking advantage of the characteristics of the figure eight structure, T-shaped reinforcement and two clamps and one top are used in the middle of the entire figure eight leg to connect the upper and lower ends of the figure eight leg to form an integral structure to ensure the upper limit of the horizontal and vertical directions on both sides of the figure eight, ensure the structure is firm and avoid dimensional changes. The upper end of the figure eight leg uses two clamps and one top, combined with the inner stopper, to ensure the distance between the figures eight, neither opening nor shrinking; the lower end of the figure eight leg uses the connecting reinforcement rib in the middle of the figure eight part to use T-shaped reinforcement to ensure the upper limit of the horizontal and vertical directions of the lower end of the figure eight leg to avoid dimensional changes. The coordinated use of the entire device ensures that the figure eight structure can be stable and reliable, and thus ensures that the dimensions of each part meet the requirements.
[0042] The contents explained in the above embodiments should be understood as these embodiments are only used to more clearly illustrate the present invention, and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art fall within the scope defined by the claims attached to this application.
Claims
1. A device for preventing deformation of figure eight parts during heat treatment, characterized in that: The invention comprises a first limiting mechanism (1) for preventing the top of the figure-eight part from deforming, and a second limiting mechanism (2) for preventing the bottom of the figure-eight part (9) from deforming; the first limiting mechanism (1) and the second limiting mechanism (2) both comprise a connecting rod (3), and the connecting rod (3) is provided with a first limiting member (4) for preventing the figure-eight part (9) from deforming inwards, and a second limiting member (5) for preventing the figure-eight part from deforming outwards; in a working state, the first limiting member (4) is arranged on the inner side of the figure-eight part (9) and is connected to the inner side of the figure-eight part (9), and the second limiting member (5) is arranged on the outer side of the figure-eight part (9); A fastener (6) for limiting the position of the second limiting member (5) is provided on a side of the second limiting member (5) away from the figure-eight-shaped member (9); A pull rod (7) is provided in the middle of the connecting rod (3) of the second limiting mechanism (2); in the working state, the upper end of the pull rod (7) is hung on the connecting reinforcement rib (91) on the upper part of the figure-eight part (9), and the lower end of the pull rod (7) is fixed to the connecting rod (3) by a nut (8).
2. The device for preventing deformation of figure eight parts during heat treatment according to claim 1, characterized in that: The first limiting member (4) in the first limiting mechanism (1) is a limiting cylinder (41), the limiting cylinder (41) being sleeved on the connecting rod (3), and the two ends of the limiting cylinder (41) respectively extending to the inner side walls of the left and right ear plates (92) of the figure-eight part (9).
3. The device for preventing deformation of figure eight parts during heat treatment according to claim 1, characterized in that: The second limiting member (5) in the first limiting mechanism (1) is a T-shaped bushing (51) sleeved on the connecting rod (3).
4. The device for preventing deformation of figure-eight parts during heat treatment according to claim 1, characterized in that: The first limiting member (4) in the second limiting mechanism (2) is an inner limiting piece (42) fixedly arranged on the connecting rod (3), the inner limiting piece (42) being fixedly arranged at the left and right ends of the connecting rod (3), and the distance between the left and right inner limiting pieces (42) being the standard distance at the bottom of the splayed legs (94) of the splayed parts.
5. The device for preventing deformation of figure-eight parts during heat treatment according to claim 1, characterized in that: The second limiting member (5) in the second limiting mechanism (2) is an outer blocking piece (52) sleeved on the connecting rod (3).
6. The device for preventing deformation of a splayed part during heat treatment according to any one of claims 1 to 5, characterized in that: The fastener (6) is threadedly connected to the connecting rod (3).
7. The device for preventing deformation of figure-eight parts during heat treatment according to claim 1, characterized in that: The upper end of the pull rod (7) is provided with a hook (71) for hanging on the upper connecting reinforcement rib (91) of the figure-eight part (9).
8. The device for preventing deformation of figure eight parts during heat treatment according to claim 1, characterized in that: A through hole (31) is formed in the middle of the connecting rod (3) in the second limiting mechanism (2), the lower end of the pull rod (7) passes through the through hole (31), and a nut (8) is provided at the lower end of the pull rod (7).