A device for expanding inner hole of titanium forging

Abstract

The utility model discloses a device for expanding the inner hole of a titanium forging, including a bottom plate and a mounting plate, a lifting assembly is provided between the bottom plate and the mounting plate, an expanding assembly is provided at the bottom of the mounting plate, a placing assembly is provided at the middle position of the upper part of the bottom plate, a titanium forging body is sleeved on the placing assembly, and the bottom of the expanding assembly expands the titanium forging body through the inner side wall of the placing assembly. The utility model, through the expanding assembly, can adjust the circumference size according to the expansion demand of the titanium forging when in use, and then when the lifting assembly drives the expanding assembly to move downward through the mounting plate, the expanding assembly squeezes the placing assembly, so that the placing assembly moves in a direction away from the center of the circle, thereby expanding the inner diameter of the titanium forging, and when the titanium forging is expanded, the placing assembly is always attached to the inner side wall of the titanium forging, thereby improving the expansion efficiency of the titanium forging, and further improving the tolerance rate of the expansion of the titanium forging.

Description

Technical Field

[0001] The utility model relates to the technical field of titanium forging processing, in particular to a titanium forging inner hole diameter expanding device. Background Art

[0002] Titanium forgings are products that are made by forging titanium materials into the desired shape under high temperature and high pressure. Titanium forgings have the advantages of low density, high strength and corrosion resistance, and are widely used in aviation, aerospace, medical, automotive and other fields.

[0003] According to the Chinese patent announcement number: CN115430770A, a titanium forging inner hole expansion device includes a workbench, a push assembly is installed on the workbench, an expansion mechanism is installed on the push assembly, a fixed seat is symmetrically arranged on the upper end surface of the workbench on one side of the expansion mechanism, a moving column is slidably installed on the fixed seat, a rebound component is sleeved on the outer side of the moving column, a clamping seat is installed on the movable end of the moving column, a baffle is arranged on one side of the clamping seat, and a movable groove is opened on the other side of the clamping seat on the workbench, an elastic member is installed in the movable groove, and a blocking block is arranged on the movable part of the elastic member to be slidably connected with the movable groove. A titanium ring is installed in two clamping seats, and during the installation process, the front and rear moving columns are driven to slide on the fixed seat, and the elastic force of the rebound component clamps the titanium ring, and the baffle and the blocking block are located on both sides of it to limit it, and the push assembly drives the expansion mechanism to move, so that the expansion head expands the titanium ring, and when the expansion head enters the titanium ring, the blocking block is pressed downward, the elastic member is compressed, and the titanium ring is pressed on the baffle to complete the expansion. However, when using the above device, the expanding head needs to be precisely aligned with the port of the titanium forging. When there is some deviation, the expanding head is likely to squeeze the port of the titanium forging, causing defects in the titanium forging. Moreover, when in use, when the hardness of the titanium forging is poor, the expanding head moves inside the titanium forging, and the titanium forging as a whole is likely to bend, thereby affecting the expansion effect.

[0004] Therefore, when using the above-mentioned device, higher precision of the expansion head and the titanium forging port and protection of the titanium forging during expansion are required. Therefore, when using the above-mentioned device, the tolerance rate for the expansion of the titanium forging is relatively low. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a titanium forging inner hole diameter expansion device, which realizes the purpose of expanding the inner diameter of the titanium forging through the mutual cooperation of a lifting component, an expanding component and a placing component.

[0006] In order to achieve the above object, the utility model is implemented through the following technical solutions:

[0007] A device for expanding the inner hole of a titanium forging comprises a base plate and a mounting plate, wherein a lifting assembly is provided between the base plate and the mounting plate, an expanding assembly is provided at the bottom of the mounting plate, a placing assembly is provided at the middle position of the upper part of the base plate, a titanium forging body is sleeved on the placing assembly, and the bottom of the expanding assembly expands the titanium forging body through the inner side wall of the placing assembly.

[0008] More preferably, the diameter expansion assembly comprises:

[0009] The driving motor is fixedly connected at the middle position of the bottom of the mounting plate.

[0010] The mounting block is threadedly connected to the power output end of the drive motor.

[0011] The fixing rods are in multiple groups and are fixedly installed at the bottom edge of the mounting plate at equal intervals along the circumferential direction.

[0012] There are multiple movable rods, which are hingedly mounted on the mounting block at equal intervals along the circumferential direction.

[0013] The expansion plate is hinged to the top ends of the fixed rod and the movable rod.

[0014] Further preferably, the bottom end of the fixed rod passes through the interior of the movable rod and extends to the inner wall of the expansion plate, and a groove matching the movable trajectory corresponding to the position of the fixed rod is provided inside the movable rod.

[0015] More preferably, the placement component includes:

[0016] There are multiple movable plates, which are slidably connected to the bottom plate at equal intervals along the circumferential direction.

[0017] The auxiliary plate is fixedly connected to one end of the movable plate, and the installation direction of the auxiliary plate and the installation direction of the movable plate are perpendicular to each other.

[0018] The fixed block is fixed on the movable plate, and the upper part of the fixed block extends to the upper part of the bottom plate.

[0019] There are multiple springs, which are fixed together inside the fixing block and the bottom plate.

[0020] Further preferably, a slide groove adapted to a movable track corresponding to the position of the fixed block is provided on the bottom plate.

[0021] Further preferably, the plurality of auxiliary plates together form a cylindrical shape, and opposite sides of the tops of the plurality of auxiliary plates are provided with inclined surfaces facing the center of the circle.

[0022] Compared with the prior art, the utility model has the following advantages: through the arrangement of the expansion component, the circumference size can be adjusted according to the expansion demand of the titanium forging during use, and then when the lifting component drives the expansion component downward through the mounting plate, the expansion component squeezes the placement component to make the placement component move away from the center of the circle, thereby expanding the inner diameter of the titanium forging, thereby reducing the required precision during the expansion, improving the expansion effect of the titanium forging, and when the titanium forging is expanded, the placement component is always attached to the inner wall of the titanium forging, thereby improving the expansion efficiency of the titanium forging, and further improving the tolerance of the expansion of the titanium forging. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of this embodiment;

[0024] Figure 2 is a schematic structural diagram of the diameter expansion assembly of this embodiment;

[0025] Figure 3 is a schematic diagram of the structure of the placement component of this embodiment;

[0026] Figure 4 Schematic diagram of the spring installation structure of this embodiment.

[0027] Figure numerals: 1. Base plate; 2. Lifting assembly; 3. Mounting plate; 4. Expansion assembly; 41. Driving motor; 42. Mounting block; 43. Fixed rod; 44. Movable rod; 45. Expansion plate; 5. Placement assembly; 51. Movable plate; 52. Auxiliary plate; 53. Fixed block; 54. Spring; 6. Titanium forging body. DETAILED DESCRIPTION

[0028] A device for expanding the inner hole of a titanium forging disclosed in the prior art includes a workbench, a push assembly is installed on the workbench, an expansion mechanism is installed on the push assembly, a fixed seat is symmetrically arranged on the upper end surface of the workbench on one side of the expansion mechanism, a moving column is slidably installed on the fixed seat, a rebound component is sleeved on the outer side of the moving column, a clamping seat is installed on the movable end of the moving column, a baffle is arranged on one side of the clamping seat, and a movable groove is opened on the other side of the clamping seat on the workbench, an elastic member is installed in the movable groove, and a blocking block is arranged on the movable part of the elastic member to be slidably connected with the movable groove. A titanium ring is installed in two clamping seats, and during the installation process, the front and rear moving columns are driven to slide on the fixed seat, and the elastic force of the rebound component clamps the titanium ring, and the baffle and the blocking block are located on both sides of it to limit it, and the push assembly drives the expansion mechanism to move, so that the expansion head expands the titanium ring, and when the expansion head enters the titanium ring, the blocking block is pressed downward, the elastic member is compressed, and the titanium ring is pressed against the baffle to complete the expansion. However, when using the above device, the expanding head needs to be precisely aligned with the port of the titanium forging. When there is some deviation, the expanding head is likely to squeeze the port of the titanium forging, causing defects in the titanium forging. Moreover, when in use, when the hardness of the titanium forging is poor, the expanding head moves inside the titanium forging, and the titanium forging as a whole is likely to bend, thereby affecting the expansion effect.

[0029] Therefore, when using the above-mentioned device, higher precision of the expansion head and the titanium forging port and protection of the titanium forging during expansion are required. Therefore, when using the above-mentioned device, the tolerance rate for the expansion of the titanium forging is relatively low.

[0030] In response to the above technical problems, this application has made the following designs and ideas: In order to solve the problems existing in the prior art, it is envisaged that a conical mechanism with an adjustable circumference size can have a better internal control effect of expanding the titanium forgings than the expanding head in the prior art, and at the same time, a certain auxiliary structure is set to achieve the purpose of protecting the titanium forgings during the expansion process.

[0031] The following is combined with Figures 1 to 4 The utility model is further introduced in detail.

[0032] A titanium forging inner hole expansion device, such as Figure 1 As shown, it includes a base plate 1 and a mounting plate 3, and a lifting component 2 is commonly arranged between the base plate 1 and the mounting plate 3. Specifically, the lifting component 2 can be a cylinder or an electric lifting rod, or can be other components that can be used for lifting. Further, the lifting component 2 is three electric lifting rods, and the present application does not make too many restrictions on this. An expansion component 4 is arranged at the bottom of the mounting plate 3. Specifically, the shape of the expansion component 4 is a cone with the vertex facing downward. Further, the vertex position of the conical expansion component 4 is adjustable. A placement component 5 is arranged at the middle position of the upper part of the base plate 1, and a titanium forging body 6 is sleeved on the placement component 5. The bottom of the expansion component 4 expands the titanium forging body 6 through the inner wall of the placement component 5.

[0033] By setting up the expansion component 4, when in use, the circumference size can be adjusted according to the expansion demand of the titanium forging, and then when the lifting component 2 drives the expansion component 4 to move downward through the mounting plate 3, the expansion component 4 squeezes the placement component 5, causing the placement component 5 to move away from the center of the circle, thereby expanding the inner diameter of the titanium forging, thereby reducing the required precision during the expansion, and improving the expansion effect of the titanium forging; and when the titanium forging is expanded, the placement component 5 is always attached to the inner wall of the titanium forging, thereby improving the expansion efficiency of the titanium forging, and further improving the tolerance of the expansion of the titanium forging.

[0034] Specifically, Figure 1 and Figure 2 As shown, the expansion assembly 4 includes:

[0035] The driving motor 41 is fixedly connected to the middle position of the bottom of the mounting plate 3. Furthermore, the driving motor 41 is externally connected to a control panel and a power source.

[0036] The mounting block 42 is threadedly connected to the power output end of the driving motor 41. Specifically, the power output end of the driving motor 41 is a screw rod, and the mounting block 42 is threadedly connected to the screw rod. Further, when the driving motor 41 starts to drive the screw rod to rotate, the mounting block 42 moves on the screw rod.

[0037] The fixing rods 43 , which are twelve in number, are fixedly mounted at the bottom edge of the mounting plate 3 at equal intervals along the circumferential direction. Furthermore, the mounting direction of the fixing rods 43 is perpendicular to the bottom of the mounting plate 3 .

[0038] There are twelve movable rods 44 , which are hingedly mounted on the mounting block 42 at equal intervals along the circumferential direction. Furthermore, the mounting positions of the fixed rods 43 and the movable rods 44 correspond to each other.

[0039] The diameter expansion plate 45 is hinged to the top ends of the fixed rod 43 and the movable rod 44 .

[0040] Furthermore, when the titanium forged part is expanded, the inclination angle of the expansion plate 45 can be adjusted according to the expansion requirements. Specifically, when the drive motor 41 is started to drive the screw to rotate, the mounting block 42 moves on the screw, so that the mounting block 42 drives the expansion plate 45 to move through the movable rod 44, and then the expansion plate 45 rotates with the bottom end of the fixed rod 43 as the fulcrum, thereby changing the distance between the bottom ends of the expansion plates 45.

[0041] Specifically, Figure 1 As shown, the bottom end of the fixed rod 43 passes through the interior of the movable rod 44 and extends to the inner wall of the expansion plate 45. The movable rod 44 is provided with a slot adapted to the movable track corresponding to the position of the fixed rod 43.

[0042] Specifically, Figure 1 , Figure 3 and Figure 4 As shown, the placement component 5 includes:

[0043] There are twelve movable plates 51 , which are slidably connected to the bottom plate 1 at equal intervals along the circumferential direction. Furthermore, the number of the movable plates 51 is equal to the number of the diameter-expanding plates 45 .

[0044] The auxiliary plate 52 is fixedly connected to one end of the movable plate 51 , and the installation direction of the auxiliary plate 52 and the installation direction of the movable plate 51 are perpendicular to each other.

[0045] The fixing block 53 is fixed on the movable plate 51 , and the upper portion of the fixing block 53 extends to the upper portion of the bottom plate 1 .

[0046] There are multiple springs 54 , which are fixed together to the fixing block 53 and the inside of the base plate 1 .

[0047] Furthermore, when the titanium forging is expanded, it is sleeved on the outer ring part of multiple auxiliary plates 52, and at the same time, the expansion plate 45 moves downward, and the expansion plate 45 is attached to the inner wall of the auxiliary plate 52. Then, during the downward movement of the expansion plate 45, the titanium forging is driven to move around through the auxiliary plate 52 to achieve the purpose of expansion.

[0048] Specifically, Figure 1 As shown, a slide groove adapted to the movable track corresponding to the position of the fixed block 53 is provided on the bottom plate 1, so as to improve the stability of the movement of the auxiliary plate 52 when the auxiliary plate 52 moves.

[0049] Specifically, Figure 3 As described above, the multiple auxiliary plates 52 together form a cylindrical shape, and the opposite sides of the tops of the multiple auxiliary plates 52 are provided with inclined surfaces facing the center of the circle. Furthermore, when the expansion plate 45 is attached to the inner wall of the auxiliary plate 52, the expansion plate 45 does not directly contact the inner wall of the titanium forging, thereby improving the expansion effect of the titanium forging.

[0050] How it works

[0051] Before use, the titanium forging is placed on a plurality of auxiliary plates 52, and the angle of the expansion plate 45 is adjusted according to the expansion specification. Specifically, when the driving motor 41 is started to drive the screw to rotate, the mounting block 42 moves on the screw, so that the mounting block 42 drives the expansion plate 45 to move through the movable rod 44, and then the expansion plate 45 rotates with the bottom end of the fixed rod 43 as a fulcrum, thereby changing the distance between the bottom ends of the expansion plates 45. At this time, the lifting component 2 is started, and the lifting component 2 drives the expansion plate 45 to move downward through the mounting plate 3, so that the expansion plate 45 contacts the inner wall of the auxiliary plate 52. When the lifting component 2 continues to move downward The expansion plate 45 drives multiple auxiliary plates 52 to diffuse away from the center of the circle, and then the multiple auxiliary plates 52 drive the titanium forging to achieve the purpose of expansion, and the multiple auxiliary plates 52 drive the fixed block 53 to move when moving, so that the spring 54 contracts. When the titanium forging is expanded, the driving motor 41 drives the expansion plate 45 to move in the opposite direction through the mounting block 42, so that the expansion plate 45 rotates in the opposite direction, and the expansion plate 45 is parallel to the inner wall of the titanium forging. At the same time, the lifting assembly 2 drives the expansion plate 45 to move upward through the mounting plate 3 to take the expanded titanium forging, and the auxiliary plate 52 and the fixed block 53 return to their original state under the reaction force of the spring 54.

[0052] This specific embodiment is merely an explanation of the utility model, and it is not a limitation of the utility model. After reading this specification, those skilled in the art can make non-creative modifications to the embodiment as needed, but as long as it is within the protection scope of the utility model, it is protected by the patent law.

Claims

1. A titanium forging inner hole expansion device, comprising a base plate (1) and a mounting plate (3), characterized in that: A lifting assembly (2) is provided between the base plate (1) and the mounting plate (3); a diameter expansion assembly (4) is provided at the bottom of the mounting plate (3); a placement assembly (5) is provided at the middle position of the upper part of the base plate (1); a titanium forging body (6) is sleeved on the placement assembly (5); and the bottom of the diameter expansion assembly (4) performs a diameter expansion operation on the titanium forging body (6) through the inner side wall of the placement assembly (5).

2. The titanium forging inner hole expansion device according to claim 1, characterized in that: The diameter expansion assembly (4) comprises: A driving motor (41) is fixedly connected to the middle position of the bottom of the mounting plate (3); A mounting block (42) threadedly connected to a power output end of the drive motor (41); A plurality of fixed rods (43) are fixedly mounted at the bottom edge of the mounting plate (3) at equal intervals along the circumferential direction; A plurality of movable rods (44) are hingedly mounted on the mounting block (42) at equal intervals along the circumferential direction; The diameter expansion plate (45) is hingedly connected to the top ends of the fixed rod (43) and the movable rod (44).

3. The titanium forging inner hole expansion device according to claim 2, characterized in that: The bottom end of the fixed rod (43) passes through the interior of the movable rod (44) and extends to the inner wall of the diameter expansion plate (45); a slot is provided inside the movable rod (44) and matches the movable track corresponding to the position of the fixed rod (43).

4. The titanium forging inner hole expansion device according to claim 1, characterized in that: The placement component (5) comprises: There are multiple movable plates (51) which are slidably connected to the bottom plate (1) at equal intervals along the circumferential direction; An auxiliary plate (52) is fixedly connected to one end of the movable plate (51), and the installation direction of the auxiliary plate (52) and the installation direction of the movable plate (51) are perpendicular to each other; A fixed block (53) is fixed on the movable plate (51), and the upper part of the fixed block (53) extends to the upper part of the bottom plate (1); There are multiple springs (54) which are fixed together inside the fixing block (53) and the bottom plate (1).

5. The titanium forging inner hole expansion device according to claim 4, characterized in that: The bottom plate (1) is provided with a sliding groove adapted to a movable track corresponding to the position of the fixed block (53).

6. The titanium forging inner hole expansion device according to claim 5, characterized in that: The plurality of auxiliary plates (52) together form a cylindrical shape, and opposite sides of the tops of the plurality of auxiliary plates (52) are each provided with an inclined surface facing the center of the circle.

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