A casting hole repair device

Abstract

The present invention provides a casting hole repair device, belonging to the technical field of casting hole repair, which includes a bottom box, a first driving component, a second driving component, a limiting column and a positioning component. A bracket is fixedly arranged on the upper part of the bottom box, a through hole is opened on the top wall of the bottom box, the positioning component is installed on the inner wall of the bracket and is used for fixing the casting to be repaired on the upper surface of the bottom box. The first driving component, the second driving component and the limiting column are arranged inside the bottom box, and the first driving component is used for driving the limiting column to move up and down. Compared with the prior art, in the embodiment of the present invention, through the rotational limiting effect of the limiting column inside the casting hole, the rapid repair of the casting hole can be realized, and the hole wall of the repaired casting hole is smooth and flat, without the need for further mechanical processing of the hole wall of the casting hole, thus improving the repair efficiency of the casting hole.

Description

Technical Field

[0001] The present invention belongs to the technical field of casting hole repair, and specifically relates to a casting hole repair device. Background Art

[0002] Currently, as the main accessories of large equipment, casting parts usually form casting holes through which bolts can pass on the casting by means of a core structure during the casting process. During the subsequent installation process of the casting, the casting is installed and fixed by passing an external bolt through the casting hole and cooperating with a nut.

[0003] With the long-term operation of the equipment, the working vibration of the equipment is likely to cause the vibration of the casting. When the casting vibrates, it will cause mutual friction between the hole wall of the casting hole and the bolt, resulting in wear and cracks on the hole wall of the casting hole. Therefore, it is necessary to repair the casting hole regularly. Most traditional repair methods are to weld the hole wall of the casting hole by welding. However, the solder formed during the welding process cannot be accurately controlled, and the solder will form protrusions on the hole wall of the casting hole, resulting in the size of the repaired casting hole not meeting the requirements. Therefore, after welding the hole wall of the casting hole, a series of machining means such as grinding or boring are required for the solder on the hole wall of the casting hole, which will make the repair process of the casting hole more cumbersome and is not conducive to the high-efficiency repair of the casting hole. Summary of the Invention

[0004] Aiming at the deficiencies of the above-mentioned prior art, the technical problem to be solved by the embodiments of the present invention is to provide a casting hole repair device.

[0005] To solve the above technical problems, the present invention provides the following technical solutions:

[0006] A casting hole repair device includes a bottom box, a first driving component, a second driving component, a limiting column, and a positioning component.

[0007] A bracket is fixedly arranged on the upper part of the bottom box, and a through hole is opened on the top wall of the bottom box.

[0008] The positioning component is installed on the inner wall of the bracket and is used to fix the casting to be repaired on the upper surface of the bottom box.

[0009] The first driving component, the second driving component, and the limiting column are arranged inside the bottom box.

[0010] The first driving component is used to drive the limiting column to move up and down. When the limiting column moves upward, the upper end of the limiting column can be driven to penetrate out of the through hole and pass through the inside of the casting hole.

[0011] After the limiting column passes through the inside of the casting hole, the second driving component is used to drive the limiting column to rotate.

[0012] As a further improvement of the present invention: the first driving assembly includes a first oil cylinder and a first lifting plate,

[0013] The first oil cylinder is fixedly arranged on the inner top wall of the bottom box, the first lifting plate is arranged at the output end of the first oil cylinder and is controlled by the first oil cylinder to move up and down, and the limiting column penetrates through the first lifting plate and is rotatably connected with the first lifting plate.

[0014] The second driving assembly includes a transmission gear, a driving gear and a motor.

[0015] The motor is fixedly installed on the upper part of the lifting plate, the transmission gear is fixedly arranged on the outside of the limiting column, and the driving gear is arranged at the output end of the motor and meshes with the transmission gear.

[0016] As a further improvement of the present invention: the positioning assembly includes a plurality of positioning bolts and a plurality of support plates.

[0017] A plurality of the support plates are respectively fixedly arranged on the inner wall of the bracket, and a group of the positioning bolts are threadedly arranged on each group of the support plates.

[0018] As a further improvement of the present invention: a bottom sealing ring plate is also fixedly arranged on the outside of the limiting column, and the diameter of the bottom sealing ring plate is larger than the diameter of the casting hole.

[0019] As a further improvement of the present invention: a top sealing assembly is also arranged inside the bracket. After the molten metal solder fills the gap between the casting hole and the limiting column, the top sealing assembly is used to seal the casting hole from the top of the casting hole.

[0020] As a further improvement of the present invention: the top sealing assembly includes a top sealing ring plate, a second lifting plate, a second oil cylinder, a guiding sleeve and a guiding rod.

[0021] The guiding rod and the second oil cylinder are fixedly arranged on the inner top wall of the bracket, the guiding sleeve is movably sleeved on the lower end of the guiding rod, the second lifting plate is fixedly arranged on the outside of the guiding sleeve, the output end of the second oil cylinder is connected with the second lifting plate, and the top sealing ring plate is fixedly arranged on the outside of the guiding sleeve.

[0022] As a further improvement of the present invention: a cooling assembly is also arranged inside the bottom box. After the molten metal solder fills the gap between the casting hole and the limiting column, the cooling assembly is used to cool the molten metal solder.

[0023] As a further improvement of the present invention: an inlet channel and a plurality of return channels are provided inside the limit post, the inlet channel and the plurality of return channels extend to the upper surface of the limit post at the upper end and to the lower surface of the limit post at the lower end, and cooling water is contained inside the bottom box.

[0024] The cooling assembly includes a water pump, an output pipe, a first water delivery pipe and a second water delivery pipe.

[0025] The water pump is fixedly installed at the inner bottom of the bottom box, the bottom end of the first water delivery pipe is fixedly connected to the inner bottom wall of the bottom box, the upper end is movably sleeved outside the second water delivery pipe, the upper end of the second water delivery pipe is fixedly connected to the lower end of the limit post, the second water delivery pipe is communicated with the inlet channel, and one end of the output pipe is connected to the water pump and the other end is communicated with the first water delivery pipe.

[0026] As a further improvement of the present invention: the diameter of the limit post is the same as the diameter of the cast hole after repair.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] In the embodiment of the present invention, when repairing the cast hole, the cast to be repaired can be placed on the upper part of the bottom box, and then the position of the cast is adjusted so that the cast hole is correspondingly communicated with the through hole. Then, the cast is fixed by the positioning assembly. Subsequently, the first driving assembly is used to drive the limit post to move upward so that the upper end of the limit post sequentially passes through the through hole and the cast hole. Finally, the second driving assembly is used to drive the limit post to rotate inside the cast hole, and the molten metal solder is filled into the gap between the cast hole and the limit post manually. After the molten metal solder cools and solidifies, the first driving assembly is used to drive the limit post to move downward so that the limit post is removed from the cast hole, thereby completing the repair operation of the cast hole. In the above process, when the molten metal solder is filled into the gap between the cast hole and the limit post, since the limit post is always in a rotating state, the molten metal solder cannot form a welding effect on the limit post during cooling and solidification. Instead, under the rotation of the limit post, it can polish the hole wall of the repaired cast hole, making the hole wall of the repaired cast hole smooth and flat. Furthermore, there is no need for further machining of the hole wall of the cast hole. Compared with the prior art, through the rotational limiting effect of the limit post inside the cast hole, the rapid repair of the cast hole can be realized, and the hole wall of the repaired cast hole is smooth and flat, without the need for further machining of the hole wall of the cast hole, improving the repair efficiency of the cast hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Structural schematic of a cast hole repair device Figure 1 ;

[0030] Figure 2 Schematic structure of a casting hole repair device Figure 2 ;

[0031] Figure 3 is Figure 1 the enlarged schematic view of area A in

[0032] Figure 4 is Figure 2 the enlarged schematic view of area B in

[0033] In the figure: 10 - bottom box, 101 - through hole, 20 - bracket, 30 - cooling assembly, 301 - water pump, 302 - output pipe, 303 - first water delivery pipe, 304 - second water delivery pipe, 40 - first driving assembly, 401 - first oil cylinder, 402 - first lifting plate, 50 - second driving assembly, 501 - transmission gear, 502 - driving gear, 503 - motor, 60 - limit post, 601 - bottom sealing ring plate, 602 - water inlet channel, 603 - water return channel, 70 - top sealing assembly, 701 - top sealing ring plate, 702 - second lifting plate, 703 - second oil cylinder, 704 - guide sleeve, 705 - guide rod, 80 - positioning assembly, 801 - positioning bolt, 802 - support plate. Detailed implementation manners

[0034] The technical solutions of the present application will be further described in detail below in conjunction with the specific implementation manners.

[0035] The embodiments of the present application are described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0036] Please refer to Figure 1 and Figure 2 , this embodiment provides a casting hole repair device, including a bottom box 10, a first driving assembly 40, a second driving assembly 50, a limit post 60 and a positioning assembly 80. A bracket 20 is fixedly arranged on the upper part of the bottom box 10. A through hole 101 is opened on the top wall of the bottom box 10. The positioning assembly 80 is installed on the inner wall of the bracket 20 and is used to fix the casting to be repaired on the upper surface of the bottom box 10. The first driving assembly 40, the second driving assembly 50 and the limit post 60 are arranged inside the bottom box 10. The first driving assembly 40 is used to drive the limit post 60 to move up and down. When the limit post 60 moves upward, the upper end of the limit post 60 can be driven to pass through the through hole 10 and pass through the inside of the casting hole. After the limit post 60 passes through the inside of the casting hole, the second driving assembly 50 is used to drive the limit post 60 to rotate.

[0037] When repairing the casting hole, the casting to be repaired can be placed on the upper part of the bottom box 10. Subsequently, the position of the casting is adjusted so that the casting hole corresponds to and communicates with the through hole 101. Then, the positioning component 80 is used to fix the casting. Subsequently, the first driving component 40 drives the limiting column 60 to move upward, so that the upper end of the limiting column 60 sequentially passes through the through hole 101 and the casting hole. Finally, the second driving component 50 drives the limiting column 60 to rotate inside the casting hole, and cooperates with manual operation to fill the molten metal solder into the gap between the casting hole and the limiting column 60. After the molten metal solder cools and solidifies, the first driving component 40 drives the limiting column 60 to move downward, so that the limiting column 60 is removed from the inside of the casting hole, thereby completing the repair operation of the casting hole. In the above process, when the molten metal solder is filled into the gap between the casting hole and the limiting column 60, since the limiting column 60 is always in a rotating state, the molten metal solder cannot form a welding effect on the limiting column 60 when it cools and solidifies. Instead, under the rotation of the limiting column 60, a polishing effect can be produced on the hole wall of the repaired casting hole, making the hole wall of the repaired casting hole smooth and flat, and thus further mechanical processing of the hole wall of the casting hole is not required.

[0038] Please refer to Figure 1 and Figure 2 As shown in, in one embodiment, the first driving component 40 includes a first oil cylinder 401 and a first lifting plate 402. The first oil cylinder 401 is fixedly arranged on the top wall inside the bottom box 10. The first lifting plate 402 is arranged at the output end of the first oil cylinder 401 and is controlled by the first oil cylinder 401 to move up and down. The limiting column 60 passes through the first lifting plate 401 and is rotatably connected to the first lifting plate 401. The second driving component 50 includes a transmission gear 501, a driving gear 502 and a motor 503. The motor 503 is fixedly installed on the upper part of the lifting plate 402. The transmission gear 501 is fixedly arranged outside the limiting column 60. The driving gear 502 is arranged at the output end of the motor 503 and meshes with the transmission gear 501.

[0039] After the casting is fixed on the upper part of the bottom box 10 by the positioning component 80, the first lifting plate 402 can be driven by the first oil cylinder 401 to move upward, thereby driving the limit post 60, the transmission gear 501, the driving gear 502 and the motor 503 to move upward as a whole. When the upper end of the limit post 60 passes through the through hole 101 and the casting hole in sequence, the motor 503 drives the driving gear 502 to rotate, and then drives the limit post 60 to rotate through the meshing action of the driving gear 502 and the transmission gear 501. Subsequently, the molten metal solder is filled into the gap between the casting hole and the limit post 60. After the molten metal solder cools and solidifies, the first oil cylinder 401 drives the first lifting plate 402 to move downward, thereby driving the limit post 60, the transmission gear 501, the driving gear 502 and the motor 503 to move downward as a whole, so that the limit post 60 is removed from the inside of the casting hole, thus completing the repair of the casting hole.

[0040] Please refer to Figure 1 , in one embodiment, the positioning component 80 includes a plurality of positioning bolts 801 and a plurality of support plates 802. The plurality of support plates 802 are respectively fixedly arranged on the inner wall of the bracket 20, and a group of the positioning bolts 801 are threadedly arranged on each group of the support plates 802.

[0041] After placing the casting to be repaired on the upper part of the bottom box 10 and the casting hole is correspondingly communicated with the through hole 101, a plurality of positioning bolts 801 can be sequentially screwed, so that the plurality of positioning bolts 801 are sequentially screwed downward relative to the support plates 802, thereby jacking the casting to the upper surface of the bottom box 10 to realize the fixation of the casting.

[0042] Please refer to Figure 3 , in one embodiment, a bottom sealing ring plate 601 is further fixedly arranged on the outside of the limit post 60, and the diameter of the bottom sealing ring plate 601 is larger than the diameter of the casting hole.

[0043] When the upper end of the limit post 60 passes through the through hole 101 and the casting hole in sequence, the bottom sealing ring plate 601 can be attached to the bottom of the casting, thereby supporting and sealing the molten metal solder filled into the gap between the casting hole and the limit post 60, and further preventing the molten metal solder from leaking from the lower part of the gap between the casting hole and the limit post 60, so as to improve the repair effect of the casting hole.

[0044] Please refer to Figure 1 , in one embodiment, a top sealing component 70 is further arranged inside the bracket 20. After the molten metal solder is filled into the gap between the casting hole and the limit post 60, the top sealing component 70 is used to seal the casting hole from the top of the casting hole, thereby preventing the molten metal solder from oozing out from the top of the casting hole under the rotation action of the limit post 60.

[0045] Please refer to Figure 1, in one embodiment, the top sealing assembly 70 includes a top sealing ring plate 701, a second lifting plate 702, a second oil cylinder 703, a guide sleeve 704 and a guide rod 705. The guide rod 705 and the second oil cylinder 704 are fixedly arranged on the inner top wall of the bracket 20. The guide sleeve 704 is movably sleeved on the lower end of the guide rod 705. The second lifting plate 702 is fixedly arranged outside the guide sleeve 704. The output end of the second oil cylinder 704 is connected to the second lifting plate 702. The top sealing ring plate 701 is fixedly arranged outside the guide sleeve 704.

[0046] After the molten metal solder is filled into the gap between the casting hole and the limiting post 60, the second oil cylinder 703 drives the second lifting plate 702 to move downward, and then drives the guide sleeve 704 and the top sealing ring plate 701 to move downward. When the guide sleeve 704 moves downward, it can be sleeved outside the limiting post 60. When the top sealing ring plate 701 moves downward, it can fit on the upper surface of the casting hole, thereby sealing the upper part of the gap between the casting hole and the limiting post 60 to prevent the molten metal solder from seeping out from the top of the casting hole under the rotation of the limiting post 60 and improving the repair effect of the casting hole.

[0047] Please refer to Figure 1 , in one embodiment, a cooling assembly 30 is further arranged inside the bottom box 10. After the molten metal solder is filled into the gap between the casting hole and the limiting post 60, the cooling assembly 30 is used to cool the molten metal solder, thereby shortening the cooling time of the molten metal solder and improving the repair efficiency of the casting hole.

[0048] Please refer to Figure 1 、 Figure 3 and Figure 4 , in one embodiment, a water inlet channel 602 and a plurality of water return channels 603 are opened inside the limiting post 60. The water inlet channel 602 and the upper ends of the plurality of water return channels 603 extend to the upper surface of the limiting post 60, and the lower ends extend to the lower surface of the limiting post 60. Cooling water is contained inside the bottom box 10. The cooling assembly 30 includes a water pump 301, an output pipe 302, a first water delivery pipe 303 and a second water delivery pipe 304. The water pump 301 is fixedly installed at the inner bottom of the bottom box 10. The bottom end of the first water delivery pipe 303 is fixedly connected to the inner bottom wall of the bottom box 10, and the upper end is movably sleeved outside the second water delivery pipe 304. The upper end of the second water delivery pipe 304 is fixedly connected to the lower end of the limiting post 60. The second water delivery pipe 304 is communicated with the water inlet channel 602. One end of the output pipe 302 is connected to the water pump 301, and the other end is communicated with the first water delivery pipe 303.

[0049] After the guiding sleeve 704 is sleeved on the limiting post 60 and the top sealing ring plate 701 fits on the upper surface of the casting, the cooling water inside the bottom box 10 is pumped through the water pump 301 from the output pipe 302, the first water delivery pipe 303 and the second water delivery pipe 304 into the water inlet channel 602. When cooling, it can enter the guiding sleeve 704 after being output from the upper end of the water inlet channel 602, and then flow back into the bottom box 10 through a plurality of water return channels 603. During this process, the cooling water can cool the molten metal solder in the gap between the casting hole and the limiting post 60 through the limiting post 60, so that the molten metal solder is quickly cooled and solidified, thereby shortening the cooling time of the molten metal solder and improving the repair efficiency of the casting hole.

[0050] In one embodiment, the diameter of the limiting post 60 is the same as the diameter of the repaired casting hole, so that after the limiting post 60 is removed from the casting hole, the diameter of the casting hole formed after the molten metal solder is solidified is the casting hole that meets the dimensional requirements.

[0051] In the embodiment of the present invention, when repairing the casting hole, the casting to be repaired can be placed on the upper part of the bottom box 10, and then the position of the casting is adjusted so that the casting hole corresponds and communicates with the through hole 101. Then, the positioning assembly 80 is used to fix the casting. Subsequently, the first driving assembly 40 drives the limiting post 60 to move upward, so that the upper end of the limiting post 60 sequentially passes through the through hole 101 and the casting hole. Finally, the second driving assembly 50 drives the limiting post 60 to rotate inside the casting hole, and the molten metal solder is filled into the gap between the casting hole and the limiting post 60 manually. After the molten metal solder is cooled and solidified, the first driving assembly 40 drives the limiting post 60 to move downward, so that the limiting post 60 is removed from the casting hole, thereby completing the repair operation of the casting hole; during the above process, when the molten metal solder is filled into the gap between the casting hole and the limiting post 60, since the limiting post 60 is always in a rotating state, the molten metal solder cannot form a welding effect on the limiting post 60 when it is cooled and solidified. Instead, under the rotating action of the limiting post 60, it can polish the hole wall of the repaired casting hole, making the hole wall of the repaired casting hole smooth and flat. Furthermore, there is no need to perform further machining on the hole wall of the casting hole. Compared with the prior art, through the rotational limiting action of the limiting post 60 inside the casting hole, the casting hole can be quickly repaired, and the hole wall of the repaired casting hole is smooth and flat, without the need to perform further machining on the hole wall of the casting hole, improving the repair efficiency of the casting hole.

[0052] The above has described the preferred embodiments of the present application in detail, but the present application is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the present application.

Claims

1. A casting hole repair device, characterized in that, It includes a bottom box, a first driving component, a second driving component, a limiting post and a positioning component. A bracket is fixedly arranged on the upper part of the bottom box, and a through hole is formed in the top wall of the bottom box. The positioning component is installed on the inner wall of the bracket and is used to fix the casting to be repaired on the upper surface of the bottom box. The first driving component, the second driving component and the limiting post are arranged inside the bottom box. The first driving component is used to drive the limiting post to move up and down. When the limiting post moves upward, the upper end of the limiting post can be driven to pass through the through hole and pass through the inside of the casting hole. After the limiting post passes through the inside of the casting hole, the second driving component is used to drive the limiting post to rotate. A bottom sealing ring plate is also fixedly arranged on the outside of the limiting post, and the diameter of the bottom sealing ring plate is larger than the diameter of the casting hole. A top sealing component is also arranged inside the bracket. After the molten metal solder fills the gap between the casting hole and the limiting post, the top sealing component is used to seal the casting hole from the top of the casting hole. The top sealing component includes a top sealing ring plate, a second lifting plate, a second oil cylinder, a guiding sleeve and a guiding rod. The guiding rod and the second oil cylinder are fixedly arranged on the inner top wall of the bracket. The guiding sleeve is movably sleeved on the lower end of the guiding rod. The second lifting plate is fixedly arranged on the outside of the guiding sleeve. The output end of the second oil cylinder is connected to the second lifting plate. The top sealing ring plate is fixedly arranged on the outside of the guiding sleeve. A cooling component is also arranged inside the bottom box. After the molten metal solder fills the gap between the casting hole and the limiting post, the cooling component is used to cool the molten metal solder. A water inlet channel and a plurality of water return channels are formed inside the limiting post. The water inlet channel and the plurality of water return channels extend to the upper surface of the limiting post at the upper end and extend to the lower surface of the limiting post at the lower end. Cooling water is contained inside the bottom box. The cooling component includes a water pump, an output pipe, a first water delivery pipe and a second water delivery pipe. The water pump is fixedly installed on the inner bottom of the bottom box. The bottom end of the first water delivery pipe is fixedly connected to the inner bottom wall of the bottom box, and the upper end is movably sleeved on the outside of the second water delivery pipe. The upper end of the second water delivery pipe is fixedly connected to the lower end of the limiting post. The second water delivery pipe is communicated with the water inlet channel. One end of the output pipe is connected to the water pump, and the other end is communicated with the first water delivery pipe.

2. The casting hole repair device according to claim 1, characterized in that, The first driving component includes a first oil cylinder and a first lifting plate. The first oil cylinder is fixedly arranged on the inner top wall of the bottom box. The first lifting plate is arranged at the output end of the first oil cylinder and is controlled by the first oil cylinder to move up and down. The limiting post penetrates through the first lifting plate and is rotatably connected to the first lifting plate. The second driving component includes a transmission gear, a driving gear and a motor. The motor is fixedly installed on the upper part of the lifting plate. The transmission gear is fixedly arranged on the outside of the limiting post. The driving gear is arranged at the output end of the motor and meshes with the transmission gear.

3. The casting hole repair device according to claim 1, wherein The positioning component includes a plurality of positioning bolts and a plurality of support plates. A plurality of the support plates are respectively fixedly arranged on the inner wall of the bracket, and a set of the positioning bolts are threadedly arranged on each set of the support plates.

4. A casting hole repair device according to claim 1, characterized in that, The diameter of the limiting post is the same as the diameter of the hole of the cast part after repair.

Images