A titanium-aluminum composite material stretching device

Abstract

The utility model relates to stretching equipment technical field especially a titanium -aluminium composite material stretching device, including frame, be equipped with a pair of the support of sliding setting on the frame, be equipped with the wedge groove on the support, be equipped with a pair of wedge clamp block in the wedge groove, the support body on the far end of two support is equipped with the drawing traction spare of removal respectively, the one end of drawing traction spare close to wedge clamp block has annular groove, the one end close to drawing traction spare on every wedge clamp block passes through a connecting piece and is connected with drawing traction spare, for a kind of stretching device, can realize to titanium -aluminium composite material and stretch, remove the stress generated in the composite process of titanium -aluminium composite material, after stretching, the crystal direction of titanium -aluminium composite material, material is consistent, can eliminate partial stress, improve the mechanical property of composite material, reduce the deformation of subsequent mechanical processing.

Description

Technical Field

[0001] This utility model relates to the field of tensile technology, and in particular to a tensile device for titanium-aluminum composite materials. Background Technology

[0002] The 3C-grade titanium-aluminum composite material is mainly developed for mobile phone side frames. Compared with steel and aluminum, titanium-aluminum composite products have advantages such as lighter weight and stronger corrosion resistance. Since titanium has a stable and dense oxide layer on its surface, the treatment technology of this oxide layer is crucial, laying a solid foundation for subsequent composite processes. This project adopts a processing technology for titanium alloy mobile phone frames, which saves materials and produces products with a good material-to-weight ratio. Multiple rolling and heat treatment processes solve the problem of difficult processing and forming of TC4 titanium alloy. Rolling forms semi-finished mobile phone frame profiles, reducing the amount of subsequent engraving and processing required to complete the mobile phone frame. The composite material bonding strength is ≥100MPa.

[0003] In modern industry, titanium alloys and aluminum alloys are widely used due to their respective superior properties. Titanium alloys possess high strength, good corrosion resistance, and high-temperature performance, while aluminum alloys have advantages such as low density and good machinability. Combining titanium alloys with aluminum alloys can leverage the strengths of both to create composite materials with even better performance, showing broad application prospects in aerospace, automotive manufacturing, shipbuilding, and other fields.

[0004] However, there are many problems in the preparation of titanium-aluminum composite materials. The existing preparation process is also insufficient in ensuring the dimensional accuracy of the composite material, reducing residual stress and improving straightness, making it difficult to meet the high-quality requirements of high-end industrial fields for titanium-aluminum composite materials. Utility Model Content

[0005] The purpose of this invention is to overcome the defects in the existing technology and provide a titanium-aluminum composite material stretching device.

[0006] To achieve the above objectives, the technical solution of this utility model is to design a titanium-aluminum composite material stretching device, including a frame, on which a pair of slidably disposed supports are provided, each support having a wedge-shaped groove, and each wedge-shaped groove having a pair of wedge-shaped clamping blocks. Each of the two supports has a movable pulling member on its support body at the far end. The end of the pulling member near the wedge-shaped clamp has an annular groove. The end of each wedge-shaped clamp near the pulling member is connected to the pulling member by a connector.

[0007] In a further preferred embodiment, the connector is L-shaped, one end of the connector is fixedly connected to the wedge-shaped clamp by screws, and the other end of the connector has a semi-circular slot that is embedded in the annular groove of the pull-out traction member, so that the connector and the pull-out traction member form a snap-fit ​​connection.

[0008] In a further preferred embodiment, the wedge-shaped groove is horizontally disposed in the middle of the support, the wedge-shaped groove penetrates the support body at the end where the two supports are close to each other, the wedge-shaped groove forms two symmetrical wedge-shaped inner groove surfaces on the support, and the wedge-shaped groove continuously widens from the end where the two supports are close to each other to the end where the two supports are far apart.

[0009] In a further preferred embodiment, each of the wedge-shaped clamping blocks has a matching wedge-shaped surface on the side near the inner groove surface of the wedge, and a planar clamping surface is formed on the back side of the wedge-shaped clamping block, and a pair of wedge-shaped clamping blocks form a pair of planar clamping surfaces.

[0010] A further preferred technical solution is that a U-shaped opening groove is formed on the support body at the upper part of the wedge groove.

[0011] In a further preferred embodiment, the support body at the lower part of the wedge-shaped groove is provided with two guide grooves. The bottom surface of each wedge-shaped clamping block is provided with a raised guide edge that cooperates with the guide groove. The top surface of each wedge-shaped clamping block is also provided with a raised guide edge. A guide block is provided in the U-shaped opening groove near each guide edge. The guide block is detachably installed in the opening groove. The guide block is provided with a raised wedge-shaped stop edge that limits and guides the wedge-shaped inner groove to the guide edge of the wedge-shaped clamping block.

[0012] A further preferred technical solution is that each of the wedge-shaped clamps is provided with a clamping plate, the clamping plate is installed on the wedge-shaped clamping block by screws, and the clamping surface of the clamping plate is provided with a rough texture.

[0013] In a further preferred embodiment, a pad is provided on the planar clamping surface of the wedge-shaped clamping block below the clamping plate, and the pad is elastically mounted on the wedge-shaped clamping block by means of a spring and a cylindrical pin.

[0014] A further preferred technical solution is that a support mechanism is provided on the frame inside the support. The support mechanism includes a support base, a detachably connected support block on the support base, and a pair of limiting arms on the support base. Each limiting arm has a tip on its inner side.

[0015] A further preferred technical solution is that a set of support rods is provided near the center between the two supports, the set of support rods are equally spaced, and the two ends of the support rods are fixed to the frame.

[0016] The advantages and beneficial effects of this utility model are as follows: It provides a stretching device that can stretch titanium-aluminum composite materials, remove the stress generated in the titanium-aluminum composite materials during the composite process, and after stretching, the crystal direction of the titanium-aluminum composite materials is consistent, which can eliminate part of the stress, improve the mechanical properties of the composite materials, and reduce the deformation in subsequent machining.

[0017] The straightness of titanium-aluminum composite materials can be improved by stretching them using a stretching device. Attached Figure Description

[0018] Figure 1 This is an axonometric view of the present invention; Figure 2 This is an isometric view of the clamping block and support mechanism of this utility model; Figure 3 This is an isometric view of the clamping plate and pad block of this utility model; In the diagram: 1. Frame; 2. Support; 3. Wedge groove; 4. Wedge clamp; 41. Guide edge; 5. Support mechanism; 51. Support base; 52. Support block; 53. Limiting arm; 54. Center; 6. Workpiece; 7. Support rod; 8. Pulling and traction component; 9. Connecting component; 10. Guide block; 101. Screw; 11. Pad; 111. Cylindrical pin; 112. Spring. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0020] Reference Figure 1-3As shown, a titanium-aluminum composite material stretching device includes a frame 1. The frame 1 has a pair of symmetrically arranged and slidable supports 2. The pair of supports 2 are driven by a first driving structure to move in directions that are either moving away from or close to each other. Each support 2 has a horizontally arranged wedge-shaped groove 3 in its middle, and the wedge-shaped groove 3 penetrates the body of the support 2 at the end where the two supports 2 are close together. Each wedge-shaped groove 3 forms two symmetrical wedge-shaped inner groove surfaces on the support 2. The wedge-shaped groove 3 continuously widens from the end where the two supports 2 are close together to the end where the two supports 2 are far apart, that is, the distance between the two wedge-shaped inner groove surfaces increases from the end where the two supports 2 are close together to the end where the two supports 2 are far apart. The end continuously widens, and a pair of wedge-shaped clamping blocks 4 are provided in the wedge-shaped groove 3. Each wedge-shaped clamping block 4 has a matching wedge-shaped surface on the side near the inner surface of the wedge-shaped groove. The back of the wedge-shaped clamping block 4 is a planar clamping surface. The pair of wedge-shaped clamping blocks 4 form a pair of planar clamping surfaces to clamp the workpiece 6. The wedge-shaped clamping blocks 4 slide with the wedge-shaped groove of the support 2 through the wedge-shaped surface, so that the distance between the pair of planar clamping surfaces can be changed from large to small to clamp the workpiece 6. The support 2 is driven to move by the first driving mechanism to stretch the workpiece 6 to eliminate internal stress. Then the distance between the pair of planar clamping surfaces is changed from small to large to release the workpiece 6 from the clamp.

[0021] To facilitate the installation of the wedge-shaped clamp 4, the material of the support 2 body at the upper part of the wedge-shaped groove 3 is removed, so that the support 2 forms a U-shaped opening groove at the upper part of the wedge-shaped groove 3. This allows the wedge-shaped clamp 4 to be directly installed in the wedge-shaped groove 3 through the U-shaped opening groove, which facilitates the installation and observation of the wedge-shaped clamp 4. The support 2 body at the lower part of the wedge-shaped groove 3 is fitted to the wedge-shaped clamp 4, providing stable support for the wedge-shaped clamp 4.

[0022] To enable the wedge-shaped clamp 4 to slide stably within the wedge-shaped groove 3, the support 2 at the lower part of the wedge-shaped groove 3 is provided with two guide grooves. Each guide groove is provided along the entire length of the inner surface of the wedge-shaped groove on the corresponding side. The bottom surface of each wedge-shaped clamp 4 is provided with a raised guide edge 41 that cooperates with the guide groove. The top surface of each wedge-shaped clamp 4 is also provided with a raised guide edge 41. A guide block 10 is provided near each guide edge 41 in the U-shaped opening groove. The guide block 10 is detachably installed in the opening groove. The guide block 10 is provided with a raised wedge-shaped stop edge that limits and guides the wedge-shaped clamp 4 to the guide edge 41 of the wedge-shaped clamp 4 with the inner surface of the wedge-shaped groove, so that the wedge-shaped clamp 4 can slide stably within the wedge-shaped groove 3.

[0023] To enable the wedge-shaped clamping block 4 to reciprocate within the wedge-shaped groove 3, a pull-out traction member 8 is provided on the body of the support 2 at the far ends of the two supports 2. The pull-out traction member 8 penetrates the body of the support 2, and has an annular groove at one end near the wedge-shaped clamping block 4. The other end of the pull-out traction member 8 is connected to the second drive mechanism. A connector 9 is connected to the pull-out traction member 8 at one end of each wedge-shaped clamping block 4 via an L-shaped connector 9. One end of the connector 9 is connected to the wedge-shaped groove 3. The clamping block 4 is fixedly connected by screws. The other end of the connector 9 has a semi-circular slot. The slot is embedded in the annular groove of the pulling and traction member 8, so that the connector 9 and the pulling and traction member 8 are engaged. In this way, when a pair of wedge-shaped clamping blocks 4 move away from each other or move closer to each other along the wedge-shaped groove 3, the connector 9 can move with the wedge-shaped clamping blocks 4, so that the slot can be inserted into the annular groove or pulled out of the annular groove, and at the same time, it can abut against both sides of the annular groove of the pulling and traction member 8 to pull the wedge-shaped clamping blocks 4.

[0024] The first drive mechanism and the second drive mechanism are any one of hydraulic cylinder, pneumatic cylinder or electric cylinder, and the first drive mechanism and the second drive mechanism are mounted on the frame.

[0025] A clamping plate 10 is provided on the planar clamping surface of each wedge-shaped clamping block 4. The clamping plate 10 is installed on the wedge-shaped clamping block 4 by screws 101. The clamping surface of the clamping plate 10 has a rough texture, which can increase the friction between the clamping plate 10 and the workpiece 6 and form a stable clamping. At the same time, the clamping plate 10 avoids direct contact between the wedge-shaped clamping block 4 and the workpiece 6, thus preventing wear and damage. Only the clamping plate 10 needs to be replaced periodically. Since the cost of the clamping plate 10 is lower than that of the wedge-shaped clamping block 4, this can reduce the production cost.

[0026] The clamping plate 10 can have vertical V-shaped grooves. These V-shaped grooves are easy to process and can form a stable clamping surface for the workpiece 6, resulting in good performance.

[0027] A pad 11 is provided on the planar clamping surface of the wedge-shaped clamping block 4 below each clamping plate 10. The pad 11 is elastically mounted on the wedge-shaped clamping block 4 by a spring 112 and a cylindrical pin 111. The pad 11 is small in size, easy to process and quench. After quenching, its mechanical properties are improved, and it has good hardness, wear resistance, and is easy to replace and maintain, thus reducing production costs. Moreover, because it is elastically mounted on the wedge-shaped clamping block 4, even when a pair of wedge-shaped clamping blocks 4 move far apart or close together, the two pads 11 always stick together under the elastic action, which can form a stable support for the workpiece 6.

[0028] A support mechanism 5 is also provided on the frame 1 inside the support 2 to support the workpiece, so that the two ends of the workpiece 6 can be kept stable before the workpiece 6 is clamped. The support mechanism 5 includes a support base 51, which is installed on the frame 1 near the support 2. The support base 51 is provided with a detachably connected support block 52. The top surface of the support block 52 contacts the bottom surface of the workpiece 6, providing vertical support for the workpiece 6. A pair of limiting arms 53 are also provided on the support base 51. The limiting arms 53 are located on both sides of the workpiece 6 and can limit the swing amplitude of the workpiece 6 in the horizontal direction. The limiting arms 53 are also provided with a tip 54, which can reduce the contact area with the workpiece 6, avoid more wear marks on the side of the workpiece 6, and at the same time limit the horizontal movement of the workpiece 6.

[0029] A set of support rods 7 is also provided near the center between the two supports 2. The set of support rods 7 are equally spaced, and the two ends of the support rods 7 are fixed on the frame 1. The set of support rods 7 supports the workpiece 6 to prevent the workpiece 6 from deforming under its own weight, thus affecting the straightness of the workpiece 6.

[0030] The titanium-aluminum composite material can be stretched using a drawing device to remove the stress generated during the composite process. After stretching, the crystal orientation of the titanium-aluminum composite material is consistent, which can eliminate some of the stress, improve the mechanical properties of the composite material, and reduce deformation in subsequent machining.

[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A titanium-aluminum composite material stretching device, comprising a frame, characterized in that, The frame is provided with a pair of sliding supports, each support is provided with a wedge-shaped groove, and each wedge-shaped groove is provided with a pair of wedge-shaped clamping blocks; Each of the two supports has a movable pulling member on its support body at the far end. The end of the pulling member near the wedge-shaped clamp has an annular groove. The end of each wedge-shaped clamp near the pulling member is connected to the pulling member by a connector.

2. The titanium-aluminum composite material stretching device according to claim 1, characterized in that, The connector is L-shaped. One end of the connector is fixedly connected to the wedge-shaped clamp by screws. The other end of the connector has a semi-circular slot that is embedded in the annular groove of the pull-out traction member, so that the connector and the pull-out traction member are engaged.

3. The titanium-aluminum composite material stretching device according to claim 1, characterized in that, The wedge-shaped groove is horizontally disposed in the middle of the support. The wedge-shaped groove penetrates the support body at the end where the two supports are close to each other. The wedge-shaped groove forms two symmetrical wedge-shaped inner groove surfaces on the support. The wedge-shaped groove continuously widens from the end where the two supports are close to each other to the end where the two supports are far apart.

4. The titanium-aluminum composite material stretching device according to claim 3, characterized in that, Each of the wedge-shaped clamping blocks has a matching wedge-shaped surface on the side near the inner groove surface of the wedge, and a planar clamping surface on the back side of the wedge-shaped clamping block, and a pair of wedge-shaped clamping blocks form a pair of planar clamping surfaces.

5. The titanium-aluminum composite material stretching device according to claim 4, characterized in that, A U-shaped opening is formed on the support body at the upper part of the wedge-shaped groove.

6. The titanium-aluminum composite material stretching device according to claim 5, characterized in that, The support body at the lower part of the wedge-shaped groove is provided with two guide grooves. The bottom surface of each wedge-shaped clamping block is provided with a raised guide edge that cooperates with the guide groove. The top surface of each wedge-shaped clamping block is also provided with a raised guide edge. A guide block is provided in the U-shaped opening groove near each guide edge. The guide block is detachably installed in the opening groove. The guide block is provided with a raised wedge-shaped stop edge that limits and guides the wedge-shaped inner groove to the guide edge of the wedge-shaped clamping block.

7. A titanium-aluminum composite material tensile device according to any one of claims 1-6, characterized in that, Each of the wedge-shaped clamps is provided with a clamping plate, which is mounted on the wedge-shaped clamping block by screws, and the clamping surface of the clamping plate is provided with a rough texture.

8. A titanium-aluminum composite material stretching device according to claim 7, characterized in that, A pad is provided on the planar clamping surface of the wedge-shaped clamping block below the clamping plate. The pad is elastically mounted on the wedge-shaped clamping block by a spring and a cylindrical pin.

9. The titanium-aluminum composite material stretching device according to claim 1, characterized in that, A support mechanism is also provided on the frame inside the support. The support mechanism includes a support base, on which a detachably connected support block is provided. A pair of limiting arms are also provided on the support base, and a tip is provided on the inner side of each limiting arm.

10. The titanium-aluminum composite material stretching device according to claim 1, characterized in that, A set of support rods is also provided near the center between the two supports. The support rods are evenly spaced and both ends of the support rods are fixed to the frame.

Images