Jaw sliding block guide rail elastic connecting structure of aluminum alloy plate tension stretcher

Abstract

An elastic connecting structure of a jaw sliding block guide rail of an aluminum alloy plate tension stretcher comprises a jaw base plate and a jaw guide rail, the jaw base plate and the jaw guide rail are connected through a bolt and a nut, and an elastic buffering element is arranged between the nut and the jaw base plate. When an aluminum alloy plate is subjected to tensile fracture in the working process of the tension stretcher and the jaw guide rail is impacted, the elastic element is elastically deformed to absorb impact energy borne by the jaw guide rail, so that the bolt is prevented from being fractured, or the jaw guide rail and the jaw base plate are prevented from being structurally damaged, and the working reliability of the tension stretcher is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the stress treatment equipment of aviation level aluminium alloy plate, concretely relates to a kind of aluminium alloy plate tension stretcher jaw sliding block guide rail elastic connection structure. BACKGROUND

[0002] Aluminium alloy thick plate will produce larger residual stress in rolling, quenching and other production processes, and excessive residual stress will cause deformation in material processing process, and even scrap. Aviation level aluminium alloy plate needs to adopt pre-stretching process to reduce the residual stress of plate in production process, and tension stretcher is the major key equipment to complete this process, and the specific structure of tension stretcher can refer to two papers of "Analysis and Optimization of Structural Strength of Ten-thousand-ton Aviation Tension Stretcher" and "12000-ton Aviation Level Aluminium Alloy Plate Tension Stretcher Equipment"; in tension stretcher, the jaw combination of fixed end head and movable end head is the key component for clamping aluminium alloy thick plate;The jaw combination includes jaw base plate, jaw guide rail, jaw sliding block, jaw tooth plate and jaw tooth plate wedge, the jaw guide rail is fixedly connected with the jaw base plate, the jaw sliding block is slidably connected with the jaw guide rail, and the jaw tooth plate is fixedly connected with the jaw sliding block by the jaw tooth plate wedge;The jaw sliding block moves along the obliquely arranged jaw guide rail, drives the jaw tooth plate to move in up-down direction, and clamps or releases aluminium alloy plate.

[0003] In the working process of jaw combination, aluminium alloy plate is clamped by jaw tooth plate, tension is applied to aluminium alloy plate, and residual stress of aviation level aluminium alloy plate in production process is eliminated;Since the tension applied to aluminium alloy plate by tension stretcher is huge, there is a risk of rupture of aluminium alloy plate in stress relief stretching process, when aluminium alloy plate is ruptured, the jaw sliding block will slide horizontally at extremely high instantaneous moving speed to the both ends of tension stretcher, and since the jaw guide rail is obliquely arranged, the horizontal sliding of jaw sliding block at extremely high instantaneous moving speed will generate huge tension impact on the obliquely arranged guide rail, the huge tension impact will cause damage to jaw guide rail, jaw base plate or the connecting structure of jaw guide rail and jaw base plate, so that once aluminium alloy plate is ruptured during the working of tension stretcher, the jaw combination needs to be replaced and repaired, thereby greatly reducing the working reliability of tension stretcher. UTILITY MODEL CONTENTS

[0004] In order to overcome the deficiencies in the background art, the utility model discloses an aluminium alloy plate tension stretcher jaw sliding block guide rail elastic connection structure, which is used to solve the problem of damage to the jaw guide rail, the jaw base plate or the connecting structure of the jaw guide rail and the jaw base plate when aluminium alloy plate is ruptured during the working process of the tension stretcher, and improve the working reliability of the tension stretcher.

[0005] In order to realize the utility model purposes, the utility model adopts the following technical scheme: a kind of aluminium alloy plate tension stretcher jaw slide block guide rail elastic connection structure, including jaw base plate, jaw guide rail, jaw guide rail is elastically connected on jaw base plate.

[0006] Further, the jaw base plate and the jaw guide rail are connected by bolts and nuts, and an elastic element is arranged between the nut and the jaw base plate; when the jaw guide rail is subjected to an impact, the elastic element is elastically deformed to absorb the impact energy received by the jaw guide rail, thereby preventing the bolts from breaking or the jaw guide rail and the jaw base plate from being structurally damaged.

[0007] Further, a plurality of jaw guide rail fixing grooves are uniformly arranged on the jaw base plate, and the jaw guide rail is arranged in the guide rail fixing groove.

[0008] Further, the nut is a common hexagonal nut or a special-shaped nut.

[0009] Further, when the jaw base plate is connected with the jaw guide rail, a gap is provided between the nut head of the hexagonal nut or the special-shaped nut and the jaw base plate.

[0010] Further, the bolt is a hexagonal internal bolt or a hexagonal external bolt.

[0011] Further, the elastic element is made of metal or non-metal.

[0012] Further, the elastic element made of metal is a butterfly spring or a spring, and the elastic element made of non-metal is a polyurethane round tube or a silicone rubber round tube.

[0013] Due to the adoption of the above technical scheme, the utility model has the following beneficial effects: the utility model discloses an aluminium alloy plate tension stretcher jaw slide block guide rail elastic connection structure, which includes a jaw base plate and a jaw guide rail, the jaw base plate and the jaw guide rail are connected by bolts and nuts, and an elastic buffer element is arranged between the nut and the jaw base plate; when the aluminium alloy plate is stretched and broken during the operation of the tension stretcher, the elastic element is elastically deformed to absorb the impact energy received by the jaw guide rail, thereby preventing the bolts from breaking or the jaw guide rail and the jaw base plate from being structurally damaged, and the working reliability of the tension stretcher is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a jaw combination cross-sectional structure schematic diagram;

[0015] Figure 2 is a jaw slide block guide rail elastic connection structure appearance schematic diagram of embodiment one Figure 1 ;

[0016] Figure 3Figure 1 is a schematic view of the appearance of the jaw base plate of Example One Figure 2 ;

[0017] Figure 4 Figure 1 is a schematic view of the appearance of the jaw base plate of Example One Figure 1 ;

[0018] Figure 2 Figure 1 is a schematic view of the appearance of the jaw base plate of Example One Figure 6 ;

[0019] Figure 1 Figure 1 is a schematic view of the appearance of the jaw base plate of Example One Figure 7 ;

[0020] Figure 8 Figure 1 is a schematic view of the appearance of the jaw base plate of Example One

[0021] Figure 9 Figure 1 is a schematic view of the appearance of the jaw base plate of Example One

[0022] Figure 10 Figure 1 is a schematic view of the appearance of the jaw base plate of Example One

[0023] Figure 11 Figure 1 is a schematic view of the appearance of the jaw base plate of Example One

[0024] Figure 12 Figure 1 is a schematic view of the appearance of the jaw base plate of Example One

[0025] Figure 13 Figure 1 is a schematic view of the appearance of the jaw base plate of Example One

[0026] Figure 14 Figure 1 is a schematic view of the appearance of the jaw base plate of Example One

[0027] Figure 1 Figure 1 is a schematic view of the appearance of the jaw base plate of Example One

[0028] Figure 1 is a schematic view of the appearance of the jaw base plate of Example One DETAILED DESCRIPTION

[0029] The utility model can be explained in detail through the following examples, the purpose of the utility model is to protect all technical improvements within the scope of the utility model.

[0030] See the instruction manual appendix Figure 1 This diagram shows a cross-sectional view of an existing jaw assembly for an aluminum alloy sheet tension stretching machine. The jaw assembly includes a jaw base plate 1, jaw guide rails 2, jaw sliders 5, jaw jaw plates 6, and jaw plate wedges 7. The jaw guide rails 2 and jaw base plate 1 are bolted together, the jaw sliders 5 are slidably connected to the jaw guide rails 2, and the jaw plates 6 are fixedly connected to the jaw sliders 5 via the jaw plate wedges 7. During operation, the jaw sliders 5 slide along the jaw guide rails 2 at an angle, causing the jaw plates 6 to move up and down, clamping or releasing the aluminum alloy sheet. (See attached instruction manual.) Figure 2 For example, the existing jaw assembly has the following problem: During the operation of the tension stretching machine, once the aluminum alloy sheet breaks, the jaw slider 5 will slide horizontally to the left at an extremely high instantaneous speed. Since the jaw guide rail 2 is inclined, the extremely high instantaneous speed of the jaw slider will generate a huge tensile force F impact on the inclined jaw guide rail 2. This huge tensile force F impact will cause structural damage to the jaw guide rail 2 and the jaw base plate 1, or breakage of the connecting bolts between the jaw guide rail 2 and the jaw base plate 1, thereby affecting the working reliability of the tension stretching machine.

[0031] To address the aforementioned issues, this utility model discloses an elastic connection structure for the jaw slider guide rail of an aluminum alloy sheet tension stretching machine. Through the elastic connection between the jaw guide rail 2 and the jaw base plate 1, the enormous impact force borne by the jaw guide rail 2 when the aluminum alloy sheet breaks is absorbed, thereby improving the working reliability of the tension stretching machine.

[0032] Example 1, see appendix to the instruction manual. Figure 4 , 3 :

[0033] The elastic connection structure of the jaw slider guide rail of the aluminum alloy sheet tension stretching machine includes jaw base plate 1 and jaw guide rail 2; see the attached instruction manual. Figure 6 , 5 The jaw base plate 1 is plate-shaped, with several jaw guide rail fixing grooves 1.1 arranged in an array on one side of the plate surface. Several through jaw guide rail fixing holes 1.2 are evenly distributed at the bottom of each jaw guide rail fixing groove 1.1. The jaw guide rail fixing holes 1.2 are stepped holes. Additionally, the jaw base plate 1 is also provided with through jaw assembly fixing holes 1.3 arranged in an array for fixing the jaw base plate 1 to the fixed end head and movable end head of the tension stretching machine. (See attached instruction manual.) Figure 7 The jaw guide rail 2 is a dovetail guide rail with a rectangular connecting section at the bottom. Several through jaw guide rail holes 2.1 are evenly distributed along the length of the guide rail. The jaw guide rail holes 2.1 are stepped holes, with the larger end of the stepped hole being a round hole. (See the attached instruction manual.) Figures 9-12 , 8: When the jaw guide rail 2 is connected with the jaw base plate 1, the rectangular connecting section at the bottom of the jaw guide rail 2 is arranged in the jaw guide rail fixing groove 1.1 of the jaw base plate 1, and is connected through an outer hexagonal nut and an inner hexagonal bolt, wherein a spring is arranged in the large-diameter hole of the stepped hole of the jaw guide rail fixing hole 1.2, the spring is pre-pressed through the outer hexagonal nut, provides a pre-stress for the elastic connection between the jaw base plate 1 and the jaw guide rail 2, and a gap H of 3-10 mm is arranged between the outer hexagonal nut and the adjacent surface of the jaw base plate 1; after the jaw base plate 1 and the jaw guide rail 2 are assembled, the jaw base plate 1 is fixedly connected with the fixed-end machine head and the movable-end machine head through the jaw combination fixing hole 1.3 on the jaw base plate 1, the outer hexagonal nut is arranged in the pre-set hexagonal hole in the fixed-end machine head and the movable-end machine head, and the outer hexagonal nut is prevented from rotating; during the maintenance of the tension stretcher, the locking inner hexagonal bolt is adjusted through a torque wrench, and the pre-stress of the elastic connection between the jaw base plate 1 and the jaw guide rail 2 is prevented from decreasing.

[0034] During the working process of the tension stretcher, once the aluminum alloy plate is broken and the jaw guide rail 2 is subjected to a huge impact tension F, the huge impact tension F will pull the jaw guide rail 2 to displace, because the gap H is arranged between the outer hexagonal nut and the adjacent surface of the jaw base plate 1, and the spring 4 is compressed and deformed during the displacement of the jaw guide rail 2, so that the huge impact energy is absorbed, and the structural damage of the jaw guide rail 2 and the jaw base plate 1 or the breakage of the inner hexagonal bolt is prevented.

[0035] Embodiment two, refer to the attached Figure 13 :

[0036] Compared with embodiment one, the outer hexagonal nut is replaced by a special-shaped nut 3, and the spring is replaced by a plurality of groups of butterfly spring sheets; wherein the special-shaped nut 3 comprises a nut body 3.1 and a special-shaped nut head 3.2, the special-shaped nut head 3.2 can be square, rectangular or hexagonal, and is rectangular in this embodiment; when the jaw base plate 1 is fixedly connected with the fixed-end machine head and the movable-end machine head, the rectangular special-shaped nut head 3.2 is arranged in the pre-set rectangular hole in the fixed-end machine head and the movable-end machine head, and the special-shaped nut 3 is prevented from rotating; during the connection between the jaw base plate 1 and the jaw guide rail 2, the nut body 3.1 and the plurality of groups of butterfly spring sheets are arranged in the large-diameter hole of the stepped hole of the jaw guide rail fixing hole 1.2, the plurality of groups of butterfly spring sheets are pre-pressed through the special-shaped nut 3, and a gap H is arranged between the special-shaped nut head 3.2 and the adjacent surface of the jaw base plate 1; in this embodiment, the plurality of groups of butterfly spring sheets can provide greater pre-stress for the elastic connection between the jaw base plate 1 and the jaw guide rail 2, and absorb greater impact energy; the nut body 3.1 arranged in the large hole of the jaw guide rail fixing hole 1.2 plays a guiding role, and can improve the stability during the displacement of the jaw guide rail 2.

[0037] Embodiment three, refer to the attached ​ ,14 :

[0038] In this embodiment, the large-diameter hole end of the jaw guide hole 2.1 of the jaw guide rail 2 is a hexagonal hole, so the inner hexagonal bolt is replaced by an outer hexagonal bolt, the head of the outer hexagonal bolt cooperates with the hexagonal hole of the jaw guide hole 2.1, and rotation of the outer hexagonal bolt during work is prevented; in addition, in this embodiment, the elastic element 4 is a polyurethane tube or a silicone rubber tube; when the jaw base plate 1 is connected with the jaw guide rail 2, the nut body 3.1, the polyurethane tube or the silicone rubber tube is arranged in the large-diameter hole of the stepped hole of the jaw guide rail fixing hole 1.2, the polyurethane tube or the silicone rubber tube is pre-pressed through the special-shaped nut 3, and a gap H is arranged between the special-shaped nut head 3.2 and the adjacent surface of the jaw base plate 1; when the jaw base plate 1 is fixedly connected with the fixed-end machine head and the movable-end machine head, the rectangular special-shaped nut head 3.2 is arranged in the rectangular hole pre-set in the fixed-end machine head and the movable-end machine head, and rotation of the special-shaped nut 3 is prevented; in this embodiment, since the special-shaped nut head 3.2 and the outer hexagonal bolt are both limited from rotating, the pre-pressing of the polyurethane tube can be prevented from being reduced due to rotation of the special-shaped nut head 3.2 or the outer hexagonal bolt during work of the jaw combination, so that the workload of daily maintenance of the jaw combination is reduced; in addition, the polyurethane tube or the silicone rubber tube is used as the elastic element 4, compared with using a plurality of groups of butterfly spring pieces, the problem of incorrect direction of the butterfly spring pieces during assembly does not occur, and abnormal pre-tightening force caused by incorrect direction of the butterfly spring pieces is avoided.

[0039] The part not described in the utility model is prior art.

Claims

1. A tension stretcher of an aluminum alloy sheet machine jaw slider guide rail elastic connection structure, characterized by: The tongs base plate (1) and the tongs guide rail (2) are connected by bolts and nuts, and an elastic element (4) is arranged between the nut and the tongs base plate (1).

2. The aluminum alloy plate tension leveller jaw slide rail elastic connection structure according to claim 1, characterized in that: When the tongs guide rail (2) is impacted, the elastic element (4) is elastically deformed to absorb the impact energy of the tongs guide rail (2), thereby avoiding the breakage of the bolt or the structural damage of the tongs guide rail (2) and the tongs base plate (1).

3. The aluminum alloy plate tension leveller jaw slide rail elastic connection structure according to claim 1, characterized in that: The tongs base plate (1) is uniformly provided with a plurality of tongs guide rail fixing grooves (1.1), and the tongs guide rail (2) is arranged in the guide rail fixing groove (1.1).

4. The aluminum alloy plate tension leveller jaw slide rail elastic connection structure according to claim 2, characterized in that: The nut is a common hexagonal nut or a special-shaped nut (3); the special-shaped nut (3) comprises a nut body (3.1) and a special-shaped nut head (3.2), and the special-shaped nut head (3.2) is a square, a rectangle or a hexagon.

5. The aluminum alloy plate tension leveller jaw slide rail elastic connection structure according to claim 4, characterized in that: When the tongs base plate (1) is connected with the tongs guide rail (2), a gap is arranged between the nut head of the hexagonal nut or the special-shaped nut (3) and the tongs base plate (1).

6. The aluminum alloy plate tension leveller jaw slide rail elastic connection structure according to claim 2, characterized in that: The bolt is a hexagonal internal bolt or a hexagonal external bolt.

7. The aluminum alloy plate tension leveller jaw slide rail elastic connection structure according to claim 2, characterized in that: The elastic element (4) is made of metal or non-metal.

8. The aluminum alloy plate tension leveller jaw slide rail elastic connection structure according to claim 7, characterized in that: The elastic element (4) made of metal is a butterfly spring or a spring; and the elastic element (4) made of non-metal is a polyurethane round tube or a silicone rubber round tube.

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