Mold shell grabbing device for aircraft engine blade precision casting furnace

Abstract

The utility model discloses a mold shell grabbing device for an aircraft engine blade precision casting furnace, which comprises a clamping cylinder, a connecting seat fixedly arranged on the back of the clamping cylinder, a first clamping jaw fixedly arranged on a first clamping arm of the clamping cylinder, and a second clamping jaw fixedly arranged on a second clamping arm of the clamping cylinder, the first clamping jaw is provided with a first arc-shaped part used for clamping the first side of the upper ring of the mold shell, the inner side wall of the first arc-shaped part is provided with a first arc-shaped groove allowing the first side of the upper ring of the mold shell to be embedded, and the second clamping jaw is provided with a second arc-shaped part used for clamping the second side of the upper ring of the mold shell. The inner side wall of the second arc-shaped part is provided with a second arc-shaped groove allowing the second side of the upper ring of the mold shell to be embedded therein.

Description

Technical Field

[0001] The utility model relates to a mold shell grabbing device, and more specifically, to a mold shell grabbing device used in a precision casting furnace for aircraft engine blades. Background Art

[0002] The main function of the precision casting furnace for aeroengine blades is to melt the alloy steel bars, pour them into a special mold shell, and cool and solidify them into blades. The mold shell is designed with casting flow channels and blade molding cavities, and the molten metal is cooled and solidified to form blades. The mold shell is mainly composed of a pouring port, a mold shell upper ring, a blade cavity, and a base. The mold shell is made of alumina, which is characterized by high temperature resistance, but is relatively brittle and easy to break.

[0003] In the precision casting furnace for aeroengine blades, after the molten metal is poured into the mold shell, it is necessary to manually use a fork to fork out the mold shell, and then fork a new mold shell into the casting furnace. The manual fork only needs to be inserted into the gap between the mold shell upper ring and the blade cavity to lift the mold shell and realize the manual transfer of the mold shell. However, the manual forking method has low production efficiency and heavy operating burden on workers. Therefore, it is urgent to design a mold shell grabbing device that is easy to install on the robot arm. Utility Model Content

[0004] In view of the above-mentioned defects of the prior art, the utility model provides a mold shell grabbing device for an aero-engine blade precision casting furnace.

[0005] The technical solution adopted by the utility model to solve its technical problems is: constructing a mold shell grasping device for an aircraft engine blade precision casting furnace, the grasping device includes a clamping cylinder, a connecting seat fixedly arranged on the back of the clamping cylinder, a first clamping jaw fixedly arranged on the first clamping arm of the clamping cylinder, and a second clamping jaw fixedly arranged on the second clamping arm of the clamping cylinder, the first clamping jaw is provided with a first arc-shaped portion for clamping a first side of an upper ring of the mold shell, the inner side wall of the first arc-shaped portion is provided with a first arc-shaped groove for embedding the first side of the upper ring of the mold shell, the second clamping jaw is provided with a second arc-shaped portion for clamping the second side of the upper ring of the mold shell, and the inner side wall of the second arc-shaped portion is provided with a second arc-shaped groove for embedding the second side of the upper ring of the mold shell.

[0006] In the mold shell grasping device for an aircraft engine blade precision casting furnace described in the utility model, the first clamping claw also includes a first connecting portion fixedly connected to the first arc-shaped portion, the first connecting portion is provided with a first connecting hole, and the first clamping arm is provided with a second connecting hole at a position corresponding to the first connecting hole;

[0007] The second clamping jaw also includes a second connecting portion fixedly connected to the second arc-shaped portion, a third connecting hole is provided on the second connecting portion, and a fourth connecting hole is provided on the second clamping arm at a position corresponding to the third connecting hole.

[0008] In the mold shell grasping device for an aero-engine blade precision casting furnace described in the utility model, the connecting seat includes an annular connecting portion, a first connecting block fixedly arranged on a first side of the annular connecting portion, and a second connecting block fixedly arranged on a second side of the annular connecting portion, the first connecting block is provided with a plurality of fifth connecting holes, the second connecting block is provided with a plurality of sixth connecting holes, a center hole is provided in the middle of the annular connecting portion, and the annular connecting portion is provided with a plurality of seventh connecting holes.

[0009] In the mold shell grasping device for an aero-engine blade precision casting furnace described in the utility model, the grasping device also includes a pressure sensor arranged in the clamping cylinder for detecting the output force of the clamping cylinder, and a controller arranged outside the clamping cylinder, electrically connected to the pressure sensor and used to control the output force of the clamping cylinder.

[0010] The mold shell grasping device for a precision casting furnace for aircraft engine blades of the utility model has the following beneficial effects: when the mold shell grasping device of the utility model is used, the grasping device is fixedly mounted on the mechanical arm through the connecting seat as a whole. When the mold shell needs to be clamped, the mechanical arm is controlled to drive the first clamping jaw and the second clamping jaw of the clamping device to align with the two sides of the mold shell respectively, and the first clamping jaw and the second clamping jaw of the clamping cylinder are controlled to move toward each other until the first side of the upper ring of the mold shell is completely embedded in the first arc-shaped groove, and the second side of the upper ring of the mold shell is completely embedded in the second arc-shaped groove, so that the first clamping jaw and the second clamping jaw completely clamp the upper ring of the mold shell. Then the mechanical arm is controlled to drive the grasping device to move to realize the grasping of the mold shell. In the present application, by setting the first arc-shaped groove and the second arc-shaped groove, the clamping is realized by relying on the cooperation of the first arc-shaped groove, the second arc-shaped groove and the upper ring of the mold shell, so that the position of the mold shell will not move during the transfer process, and the grasping is stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0012] Figure 1 This is a schematic diagram of the structure of the mold shell grabbing device used in the precision casting furnace of aircraft engine blades in the open state of the utility model;

[0013] Figure 2 The utility model is a schematic diagram of the clamping state structure of the mold shell grasping device used in the precision casting furnace of the aero-engine blade. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0015] like Figure 1 , 2As shown, in the first embodiment of the mold shell grasping device for an aero-engine blade precision casting furnace of the utility model, the grasping device 10 includes a clamping cylinder 11, a connecting seat 12 fixedly arranged on the back of the clamping cylinder 11, a first clamping jaw 15 fixedly arranged on the first clamping arm 13 of the clamping cylinder 11, and a second clamping jaw 16 fixedly arranged on the second clamping arm 14 of the clamping cylinder 11, the first clamping jaw 15 is provided with a first arc-shaped portion for clamping the first side of the mold shell upper ring 31, and the inner side wall of the first arc-shaped portion is provided with a first arc-shaped groove 17 for the first side of the mold shell upper ring 31 to be embedded, the second clamping jaw 16 is provided with a second arc-shaped portion for clamping the second side of the mold shell upper ring 31, and the inner side wall of the second arc-shaped portion is provided with a second arc-shaped groove 18 for the second side of the mold shell upper ring 31 to be embedded.

[0016] When using the mold shell grasping device of the utility model, the grasping device 10 is fixedly installed on the mechanical arm through the connecting seat 12 as a whole. When the mold shell needs to be clamped, the mechanical arm is controlled to drive the first clamping jaw 15 and the second clamping jaw 16 of the clamping device to align with the two sides of the mold shell respectively, and the first clamping jaw 15 and the second clamping jaw 16 of the clamping cylinder 11 are controlled to move toward each other until the first side of the mold shell upper ring 31 is completely embedded in the first arc groove 17, and the second side of the mold shell upper ring 31 is completely embedded in the second arc groove 18, so that the first clamping jaw 15 and the second clamping jaw 16 completely clamp the mold shell upper ring 31. Then the mechanical arm is controlled to drive the grasping device 10 to move to realize the grasping of the mold shell. In the present application, by setting the first arc groove 17 and the second arc groove 18, the clamping is realized by relying on the cooperation of the first arc groove 17, the second arc groove 18 and the mold shell upper ring 31, so that the mold shell position will not move during the transfer process, and the grasping is stable and reliable.

[0017] In this embodiment, the first clamping jaw 15 further includes a first connecting portion 19 fixedly connected to the first arc-shaped portion. The first connecting portion 19 is provided with a first connecting hole 21 . The first clamping arm 13 is provided with a second connecting hole 22 at a position corresponding to the first connecting hole 21 .

[0018] The second clamping jaw 16 further includes a second connecting portion 20 fixedly connected to the second arc-shaped portion. A third connecting hole 23 is defined on the second connecting portion 20 . A fourth connecting hole is defined on the second clamping arm 14 at a position corresponding to the third connecting hole 23 .

[0019] The first connection hole 21 and the second connection hole 22 are used to fix the first connection part 19 and the first clamp arm 13 through bolts and nuts, and the third connection hole 23 and the fourth connection hole are used to fix the second connection part 20 and the second clamp arm 14 through bolts and nuts.

[0020] Furthermore, the connecting seat 12 includes an annular connecting portion 24, a first connecting block 25 fixed to the first side of the annular connecting portion 24, and a second connecting block 26 fixed to the second side of the annular connecting portion 24. The first connecting block 25 is provided with a plurality of fifth connecting holes 27, the second connecting block 26 is provided with a plurality of sixth connecting holes 28, a center hole 29 is provided in the middle of the annular connecting portion 24, and the annular connecting portion 24 is provided with a plurality of seventh connecting holes 30.

[0021] Preferably, the connection base 12 can be fixedly connected to the back of the grab cylinder through the fifth connection hole 27 and the sixth connection hole 28, and the connection base 12 can be fixedly connected to the robot arm through the seventh connection hole 30 and the center hole 29.

[0022] Furthermore, in order to accurately control the output force of the clamping cylinder 11 to clamp the upper ring 31 of the mold shell, and prevent the mold shell from being damaged or not being clamped tightly, the gripping device 10 also includes a pressure sensor disposed in the clamping cylinder 11 for detecting the output force of the clamping cylinder 11, and a controller disposed outside the clamping cylinder 11 and electrically connected to the pressure sensor and used to control the output force of the clamping cylinder 11.

[0023] In the process of the clamping cylinder 11 gradually clamping the mold shell upper ring 31, the pressure sensor detects the output force of the clamping cylinder 11 and feeds the output force back to the controller, and the controller further accurately controls the output force of the clamping cylinder 11.

[0024] In addition, in the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", "stacked" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A mold shell grabbing device for an aircraft engine blade precision casting furnace, characterized in that: The gripping device includes a clamping cylinder, a connecting seat fixed on the back of the clamping cylinder, a first clamping jaw fixed on the first clamping arm of the clamping cylinder, and a second clamping jaw fixed on the second clamping arm of the clamping cylinder. The first clamping jaw is provided with a first arc-shaped portion for clamping the first side of the upper ring of the mold shell, and the inner side wall of the first arc-shaped portion is provided with a first arc-shaped groove for the first side of the upper ring of the mold shell to be embedded. The second clamping jaw is provided with a second arc-shaped portion for clamping the second side of the upper ring of the mold shell, and the inner side wall of the second arc-shaped portion is provided with a second arc-shaped groove for the second side of the upper ring of the mold shell to be embedded.

2. The mold shell grabbing device for an aircraft engine blade precision casting furnace according to claim 1 is characterized in that: The first clamping jaw further includes a first connecting portion fixedly connected to the first arc-shaped portion, the first connecting portion is provided with a first connecting hole, and the first clamping arm is provided with a second connecting hole at a position corresponding to the first connecting hole; The second clamping jaw further includes a second connecting portion fixedly connected to the second arc-shaped portion, a third connecting hole is provided on the second connecting portion, and a fourth connecting hole is provided on the second clamping arm at a position corresponding to the third connecting hole.

3. The mold shell grabbing device for an aircraft engine blade precision casting furnace according to claim 1 is characterized in that: The connecting seat includes an annular connecting portion, a first connecting block fixed to a first side of the annular connecting portion, and a second connecting block fixed to a second side of the annular connecting portion. The first connecting block is provided with a plurality of fifth connecting holes, the second connecting block is provided with a plurality of sixth connecting holes, a center hole is provided in the middle of the annular connecting portion, and the annular connecting portion is provided with a plurality of seventh connecting holes.

4. The mold shell grabbing device for an aircraft engine blade precision casting furnace according to claim 1 is characterized in that: The gripping device further includes a pressure sensor disposed in the gripping cylinder for detecting the output force of the gripping cylinder, and a controller disposed outside the gripping cylinder and electrically connected to the pressure sensor for controlling the output force of the gripping cylinder.

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