Ancient building wood structure surface loss repairing device and method

Abstract

The invention discloses an ancient building wood structure surface loss repairing device and method, and relates to the technical field of ancient building wood structure surface loss repairing devices. An ancient building wood structure surface loss repairing device comprises a hoop assembly arranged on a column in a sleeving mode. Through the highly integrated design, a to-be-repaired cylinder is wrapped with the hoop assembly, the hooping assembly is provided with the punching alignment plate, the alignment groove in the punching alignment plate is used for aligning the missing position of the cylinder, then the missing position is punched through a tool, after punching is completed, wood blocks of the same shape are hammered into punched holes, and the punching alignment plate is arranged on the hooping assembly; the punched holes are tamped; the hoop assembly is driven to rotate on the column body, the protruding part of the wood block is cut through the cutter, the surface of the filled wood block and the surface of the column body are made to be flat, then the repairing part is polished through the polishing abrasive paper, and therefore through the integrated design, multiple operations can be completed at a time, and repairing of the ancient building wood is more convenient.

Description

Technical Field

[0001] The invention belongs to the technical field of devices for repairing surface defects of ancient wooden structures, and in particular, relates to a device for repairing surface defects of ancient wooden structures. Background Art

[0002] At present, there are many ancient buildings, and they are very old. The commonly used columns in ancient buildings will have missing surfaces after long-term use, so the missing parts need to be repaired. The current repair method is to chisel the missing parts into regular inverted trapezoidal depressions, and then wedge wooden blocks into the inverted trapezoidal depressions to fill the chiseled holes, and then trim the wooden blocks so that the inserted wooden blocks are flush with the surface of the columns. Therefore, the repair process is more troublesome, and there is currently a lack of special equipment. For this reason, a surface missing modification device for ancient wooden structures is proposed. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a device for repairing surface defects of ancient building wooden structures that can overcome the above problems or at least partially solve the above problems.

[0004] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: a device for repairing surface defects of ancient wooden structures, comprising: a hoop assembly mounted on a column, the hoop assembly being detachably connected to a perforated alignment plate, the perforated alignment plate being provided with an alignment groove for locating defects on the column; a cutter mounted on the hoop assembly, for cutting protrusions on the column when the hoop assembly is driven to rotate on the column; a filling groove being provided on the inner wall of the hoop assembly, sandpaper being installed in the filling groove, for sanding the protrusions on the column when the hoop assembly is driven to rotate, and when the hoop assembly rotates, the surface of the column is sanded by the sandpaper.

[0005] Preferably, the clamp assembly includes a main arc body, a first arc body, and a second arc body. The first arc body and the second arc body are respectively rotatably connected to the main arc body. The circumference of the main arc body is half of the circumference of the clamp assembly, and the circumference of the first arc body and the second arc body are respectively one-quarter of the circumference of the main arc body.

[0006] Preferably, ribs are fixedly connected to the first arc member and the second arc member, and the two ribs are locked and connected by bolts.

[0007] Preferably, a groove is provided on the main arc body, the groove runs through the main arc body, installation grooves are respectively provided on the main arc body on both sides of the groove, and the chiseled holes are aligned with the supporting feet on both sides of the plate corresponding to the installation grooves; a positioning column is fixedly connected in the installation groove, and a positioning hole corresponding to the positioning column is provided on the supporting foot; the filling groove is provided on the main arc body, the first arc body, and the second arc body.

[0008] Furthermore, a rotating shaft is fixedly connected to the main arc member located on one side of the groove, a clamping rod is rotatably connected to the rotating shaft, a clamping groove is provided on the clamping rod, and the clamping groove is located on the positioning column by rotating the clamping rod to limit and fix the hole alignment plate.

[0009] Preferably, knife mounting grooves are provided on the main arc members located on both sides of the slot, and the cutter is installed in the knife mounting grooves, with the cutting edge of the cutter facing the slot.

[0010] Preferably, a threaded sleeve is symmetrically fixedly connected in the tool mounting groove, and openings corresponding to the threaded sleeve are symmetrically opened on the cutter, and the threaded sleeve and the cutter are locked and connected via a locking screw.

[0011] Furthermore, the top surfaces of the main arc body, the first arc body, and the second arc body are fixedly connected with an outer gear ring, and the bottom surfaces of the main arc body, the first arc body, and the second arc body are fixedly connected with a lower bottom ring; it also includes a box connected to the outer gear ring and the lower bottom ring, a motor is installed in the box, a first gear is fixedly connected to the output end of the motor, and a second gear is rotatably connected to the box, the first gear and the second gear are meshed with each other, and the second gear is meshed with the outer gear ring.

[0012] Preferably, annular grooves are provided on the top surface of the outer gear ring and the bottom surface of the lower bottom ring, and two groups of slide grooves are symmetrically provided on the box body, and an upper clamping plate and a lower clamping plate are respectively slidably connected in the two symmetrical groups of slide grooves, and sliders are fixedly connected on the bottom surface of the upper clamping plate and the surface of the lower clamping plate, and the sliders slide in the annular grooves, and a bidirectional screw rod is symmetrically rotatably connected in the box body, and the adjacent upper and lower clamping plates are threadedly connected to the bidirectional screw rod, and the two bidirectional screw rods are fixedly connected with synchronous wheels, and the two synchronous wheels are connected by a synchronous belt to drive the upper and lower clamping plates to move away from or approach each other.

[0013] A method for repairing a missing part on the surface of an ancient wooden structure, comprising the aforementioned device for repairing a missing part on the surface of an ancient wooden structure, comprises the following steps:

[0014] S1. Wrap the clamp assembly on the column to be repaired, and arrange a perforated alignment plate on the clamp assembly, use the alignment groove on the perforated alignment plate to align with the missing part on the column, and then use a tool to perforate the missing part;

[0015] S2. After the hole is chiseled, hammer a wooden block of the same shape into the hole to fill it up;

[0016] S3. After hammering the wood block into the chisel hole, install the cutter on the clamp assembly, drive the clamp assembly to rotate on the column, and use the cutter to cut the protruding part of the wood block so that the surface of the filled wood block is flush with the surface of the column. Then install the sandpaper in the filling slot, drive the clamp assembly to rotate, and use the sandpaper to grind the repaired part.

[0017] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art: the present invention uses a highly integrated design, uses a clamp assembly to wrap around the column to be repaired, and provides a drilling alignment plate on the clamp assembly, uses the alignment groove on the drilling alignment plate to align with the missing part on the column, and then drills the missing part by using a tool. After drilling, a wooden block of the same shape is hammered into the drilled hole to fill the drilled hole;

[0018] The drilling alignment plate provided in the device can align the missing part well, which provides guidance when drilling holes manually, avoiding the holes being skewed or having irregular shapes;

[0019] After the wooden block is hammered into the chiseled hole, the cutter is installed on the clamp assembly, and the clamp assembly is driven to rotate on the column, and the protruding part of the wooden block is cut with the cutter, so that the surface of the filled wooden block is flush with the surface of the column, and then the sandpaper is installed in the filling slot, and the clamp assembly is driven to rotate and the repaired part is polished with the sandpaper. Therefore, the device can complete multiple operations at one time through its integrated design, making the repair of ancient building wood more convenient.

[0020] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In the attached picture:

[0022] Figure 1 A schematic diagram of the three-dimensional structure of a device for repairing surface defects of an ancient building wooden structure proposed by the present invention;

[0023] Figure 2 A schematic diagram of the structure of a handle of a device for repairing surface defects of an ancient building wooden structure proposed by the present invention;

[0024] Figure 3 This is a schematic structural diagram of an alignment groove of a device for repairing surface defects of an ancient building wooden structure proposed by the present invention;

[0025] Figure 4This is a schematic structural diagram of a main arc body of a device for repairing surface defects of an ancient building wooden structure proposed by the present invention;

[0026] Figure 5 This is a schematic structural diagram of an outer gear ring and a lower bottom ring of a device for repairing surface defects of an ancient wooden structure proposed by the present invention;

[0027] Figure 6 This is a schematic structural diagram of a first arc-shaped member and a second arc-shaped member of a device for repairing surface defects of an ancient building wooden structure proposed by the present invention;

[0028] Figure 7 The present invention provides a device for repairing surface defects of ancient wooden structures. Figure 6 The structural diagram at A in the middle;

[0029] Figure 8 This is a schematic structural diagram of ribs and bolts of a device for repairing surface defects of an ancient building wooden structure proposed by the present invention.

[0030] In the figure: 1. column; 11. main arc body; 111. slot; 112. mounting slot; 113. drilling alignment plate; 114. support foot; 115. alignment slot; 116. positioning column; 117. rotating shaft; 118. clamping rod; 119. clamping slot; 12. first arc body; 13. second arc body; 14. rib plate; 15. bolt; 16. filling slot; 17. knife slot; 171. threaded sleeve; 172. cutter; 173. locking screw; 2. box body; 20. upper clamping plate; 200. slide slot; 21. lower clamping plate; 22. two-way screw rod; 23. synchronous wheel; 24. synchronous belt; 25. slider; 26. motor; 261. first gear; 262. second gear; 263. outer gear ring; 264. annular groove; 265. lower bottom ring; 3. handle. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0032] The following is combined with Figure 1 -Attached Figure 8 , describes in detail the technical solutions provided by each embodiment of the present invention.

[0033] Example 1: Reference Figure 1-Figure 8, a surface defect repair device for an ancient wooden structure, comprising: a hoop assembly sleeved on a column 1, a perforated alignment plate 113 detachably connected to the hoop assembly, an alignment groove 115 provided on the perforated alignment plate 113, for locating defects on the column 1; a cutter 172, mounted on the hoop assembly, for cutting protrusions on the column 1 when the hoop assembly is driven to rotate on the column 1; a filling groove 16, opened on the inner wall of the hoop assembly, a grinding sandpaper is installed in the filling groove 16, for grinding the protrusions on the column 1 when the hoop assembly is driven to rotate, and when the hoop assembly rotates, the surface of the column 1 is polished by the grinding sandpaper;

[0034] The device is designed to be highly integrated. The hoop assembly is wrapped around the column 1 to be repaired. A drilling alignment plate 113 is provided on the hoop assembly. The alignment groove 115 on the drilling alignment plate 113 is used to align the missing part on the column 1. Then, a tool is used to drill a hole in the missing part. The shape of the drilling hole is recommended to be an inverted trapezoid. After drilling, a wooden block of the same shape is hammered into the drilling hole to fill the hole.

[0035] The drilling alignment plate 113 provided in the present device can be well aligned with the missing part, which provides guidance when drilling manually, and avoids the drilling of crooked holes or irregular holes;

[0036] After the wooden block is hammered into the chiseled hole, the cutter 172 is installed on the clamp assembly, and the clamp assembly is driven to rotate on the column 1, and the protruding part of the wooden block is cut by the cutter 172, so that the surface of the filled wooden block is flush with the surface of the column 1, and then the sandpaper is installed in the filling groove 16, and the clamp assembly is driven to rotate, and the repaired part is polished with the sandpaper. Therefore, the device can complete multiple operations at one time through its integrated design, making the repair of ancient building wood more convenient.

[0037] Example 2: Reference Figure 1 , Figure 5 , Figure 8 , a device for repairing missing parts on the surface of an ancient wooden structure, which is basically the same as Example 1, and further, the hoop assembly includes a main arc body 11, a first arc body 12, and a second arc body 13, the first arc body 12 and the second arc body 13 are respectively rotatably connected to the main arc body 11, the circumference of the main arc body 11 is half of the circumference of the hoop assembly, and the circumferences of the first arc body 12 and the second arc body 13 are respectively one-fourth of the circumference of the main arc body 11;

[0038] By rotating the first arc member 12 and the second arc member 13 on the main arc member 11, the clamp assembly can be unfolded and conveniently mounted on the column 1;

[0039] The first arc member 12 and the second arc member 13 are both fixedly connected with ribs 14, and the two ribs 14 are locked and connected by bolts 15, and the first arc member 12 and the second arc member 13 are locked by bolts 15, so that the first arc member 12, the second arc member 13 and the main arc member 11 are embraced on the column 1.

[0040] Example 3: Reference Figure 1 , Figure 3 , Figure 5 , Figure 7 , Figure 8 , a device for repairing missing parts on the surface of an ancient wooden structure, which is basically the same as the second embodiment, and further, a slot 111 is provided on the main arc body 11, the slot 111 runs through the main arc body 11, and mounting slots 112 are provided on the main arc body 11 on both sides of the slot 111, and the supporting legs 114 on both sides of the alignment plate 113 are drilled to correspond to the mounting slots 112; a positioning column 116 is fixedly connected in the mounting slot 112, and a positioning hole corresponding to the positioning column 116 is provided on the supporting leg 114; a filling slot 16 is provided on the main arc body 11, the first arc body 12, and the second arc body 13;

[0041] A portion of the punching alignment plate 113 is placed in the slot 111, and the support leg 114 on the punching alignment plate 113 is located in the mounting slot 112. The support leg 114 is provided with a positioning hole, and the positioning hole is inserted into the positioning column 116, thereby realizing the installation of the punching alignment plate 113.

[0042] A rotating shaft 117 is fixedly connected to the main arc member 11 located on one side of the slot 111, and a clamping rod 118 is rotatably connected to the rotating shaft 117. A clamping groove 119 is formed on the clamping rod 118. The clamping groove 119 is located on the positioning column 116 by rotating the clamping rod 118, so as to limit and fix the drilling alignment plate 113;

[0043] By rotating the clamping rod 118 , the clamping groove 119 enters the positioning column 116 , thereby fixing the perforated alignment plate 113 to prevent it from falling out of the slot 111 during use.

[0044] Reference Figure 7 A knife mounting groove 17 is provided on the main arc body 11 located on both sides of the groove 111, and a cutter 172 is installed in the knife mounting groove 17, and the cutting edge of the cutter 172 faces the groove 111. The knife mounting groove 17 can facilitate the installation of the cutter 172 and make the cutting edge of the cutter 172 align with the groove 111, so that when the clamp assembly rotates, the cutter 172 can cut the wood block.

[0045] A threaded sleeve 171 is symmetrically fixedly connected in the knife groove 17, and openings corresponding to the threaded sleeve 171 are symmetrically opened on the cutter 172. The threaded sleeve 171 and the cutter 172 are locked and connected by a locking screw 173. By screwing the locking screw 173 on the threaded sleeve 171, the cutter 172 can be easily fixed to prevent the cutter 172 from shaking when cutting the wood block.

[0046] Example 4: Reference Figure 5 , Figure 6 , Figure 8 , a device for repairing missing parts on the surface of an ancient wooden structure, which is basically the same as Example 3, and further includes: the top surfaces of the main arc body 11, the first arc body 12, and the second arc body 13 are all fixedly connected with an outer gear ring 263, and the bottom surfaces of the main arc body 11, the first arc body 12, and the second arc body 13 are all fixedly connected with a lower bottom ring 265; it also includes a box body 2 connected to the outer gear ring 263 and the lower bottom ring 265, a motor 26 is installed in the box body 2, a first gear 261 is fixedly connected to the output end of the motor 26, and a second gear 262 is rotatably connected to the box body 2, the first gear 261 and the second gear 262 are meshed, and the second gear 262 is meshed with the outer gear ring 263;

[0047] The top surface of the outer gear ring 263 and the bottom surface of the lower bottom ring 265 are both provided with an annular groove 264. Two groups of slide grooves 200 are symmetrically provided on the box body 2. The upper clamping plate 20 and the lower clamping plate 21 are respectively slidably connected in the two symmetrical slide grooves 200. The bottom surface of the upper clamping plate 20 and the surface of the lower clamping plate 21 are both fixedly connected with a slider 25. The slider 25 slides in the annular groove 264. The box body 2 is symmetrically rotatably connected with a bidirectional screw rod 22. The adjacent upper clamping plate 20 and the lower clamping plate 21 are threadedly connected to the bidirectional screw rod 22. The two bidirectional screw rods 22 are both fixedly connected with a synchronous wheel 23. The two synchronous wheels 23 are connected by a synchronous belt 24 to drive the upper clamping plate 20 and the lower clamping plate 21 to move away from or approach each other.

[0048] By rotating one of the two-way screw rods 22, the other two-way screw rod 22 can be driven to rotate through the synchronous belt 24. At this time, the upper clamping plate 20 and the lower clamping plate 21 threadedly connected to the two-way screw rod 22 can approach each other at the same time, so that the sliders 25 on the upper clamping plate 20 and the lower clamping plate 21 enter the annular groove 264 of the outer gear ring 263 and the lower bottom ring 265, and the second gear 262 is meshed with the outer gear ring 263. At this time, by starting the motor 26, the motor 26 rotates the clamp assembly, which facilitates the driving of the clamp assembly to rotate;

[0049] A handle 3 is installed on the box body 2, and the handle 3 can be used to easily grasp and hold the box body 2.

[0050] A method for repairing a defect on the surface of an ancient wooden structure, comprising a device for repairing a defect on the surface of an ancient wooden structure, comprising the following steps:

[0051] S1, wrapping the clamp assembly on the column 1 to be repaired, and setting a perforated alignment plate 113 on the clamp assembly, using the alignment groove 115 on the perforated alignment plate 113 to align with the missing part on the column 1, and then perforating the missing part by using a tool;

[0052] S2. After the hole is chiseled, hammer a wooden block of the same shape into the hole to fill it up;

[0053] S3. After the wood block is hammered into the chisel hole, the cutter 172 is installed on the clamp assembly, and the clamp assembly is driven to rotate on the column 1. The protruding part of the wood block is cut with the cutter 172 so that the surface of the filled wood block is flush with the surface of the column 1. Then, the sandpaper is installed in the filling slot 16, and the clamp assembly is driven to rotate and the repaired part is polished with the sandpaper.

[0054] The present invention uses a highly integrated design, uses a clamp assembly to wrap around the column 1 to be repaired, and sets a drilling alignment plate 113 on the clamp assembly, uses the alignment groove 115 on the drilling alignment plate 113 to align with the missing part on the column 1, and then drills the missing part with a tool. The shape of the drilled hole is recommended to be an inverted trapezoid. After the drilling is completed, a wooden block of the same shape is hammered into the drilled hole to fill the drilled hole.

[0055] The drilling alignment plate 113 provided in the present device can be well aligned with the missing part, which provides guidance when drilling manually, and avoids the drilling of crooked holes or irregular holes;

[0056] After the wooden block is hammered into the chiseled hole, the cutter 172 is installed on the clamp assembly, and the clamp assembly is driven to rotate on the column 1, and the protruding part of the wooden block is cut by the cutter 172, so that the surface of the filled wooden block is flush with the surface of the column 1, and then the sandpaper is installed in the filling groove 16, and the clamp assembly is driven to rotate, and the repaired part is polished with the sandpaper. Therefore, the device can complete multiple operations at one time through its integrated design, making the repair of ancient building wood more convenient.

[0057] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with the present invention can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. A device for repairing surface defects of ancient wooden structures, characterized in that: include: A hoop assembly sleeved on the column (1), the hoop assembly being detachably connected to a perforated alignment plate (113), the perforated alignment plate (113) being provided with an alignment groove (115) for locating a defect on the column (1); A cutter (172) is mounted on the clamp assembly and is used to cut protrusions on the column (1) when the clamp assembly is driven to rotate on the column (1); A filling groove (16) is provided on the inner wall of the clamp assembly. A grinding sandpaper is installed in the filling groove (16) for grinding the protrusions on the column (1) when the clamp assembly is driven to rotate. When the clamp assembly rotates, the surface of the column (1) is grinded by the grinding sandpaper.

2. The device for repairing surface defects of ancient wooden structures according to claim 1, characterized in that: The clamp assembly comprises a main arc member (11), a first arc member (12), and a second arc member (13); the first arc member (12) and the second arc member (13) are respectively rotatably connected to the main arc member (11); the circumference of the main arc member (11) is half of the circumference of the clamp assembly; and the circumferences of the first arc member (12) and the second arc member (13) are respectively one-fourth of the circumference of the main arc member (11).

3. The device for repairing surface defects of ancient wooden structures according to claim 2, characterized in that: The first arc member (12) and the second arc member (13) are both fixedly connected with rib plates (14), and the two rib plates (14) are locked and connected by bolts (15).

4. The device for repairing surface defects of ancient wooden structures according to claim 3, characterized in that: The main arc body (11) is provided with a slot (111), the slot (111) runs through the main arc body (11), the main arc body (11) on both sides of the slot (111) are provided with mounting slots (112), and the supporting legs (114) on both sides of the chiseled hole alignment plate (113) correspond to the mounting slots (112); A positioning column (116) is fixedly connected in the installation groove (112), and a positioning hole corresponding to the positioning column (116) is formed on the support foot (114); The loading groove (16) is provided on the main arc body (11), the first arc body (12), and the second arc body (13).

5. The device for repairing surface defects of ancient wooden structures according to claim 4, characterized in that: A rotating shaft (117) is fixedly connected to the main arc member (11) located on one side of the slot (111), a clamping rod (118) is rotatably connected to the rotating shaft (117), and a clamping groove (119) is provided on the clamping rod (118). By rotating the clamping rod (118), the clamping groove (119) is located on the positioning column (116), so that the drilling alignment plate (113) is limited and fixed.

6. The device for repairing surface defects of ancient wooden structures according to claim 4, characterized in that: The main arc body (11) located on both sides of the slot (111) is provided with a knife mounting groove (17), the cutter (172) is installed in the knife mounting groove (17), and the cutting edge of the cutter (172) faces the slot (111).

7. The device for repairing surface defects of ancient wooden structures according to claim 6, characterized in that: A threaded sleeve (171) is symmetrically fixedly connected in the knife mounting groove (17), and an opening corresponding to the threaded sleeve (171) is symmetrically opened on the cutter (172). The threaded sleeve (171) and the cutter (172) are locked and connected via a locking screw (173).

8. The device for repairing surface defects of ancient wooden structures according to claim 3, characterized in that: The top surfaces of the main arc body (11), the first arc body (12), and the second arc body (13) are all fixedly connected with an outer gear ring (263), and the bottom surfaces of the main arc body (11), the first arc body (12), and the second arc body (13) are all fixedly connected with a lower bottom ring (265); It also comprises a housing (2) connected to the outer gear ring (263) and the lower bottom ring (265), a motor (26) being installed in the housing (2), a first gear (261) being fixedly connected to the output end of the motor (26), a second gear (262) being rotatably connected to the housing (2), the first gear (261) and the second gear (262) being meshed with each other, and the second gear (262) being meshed with the outer gear ring (263).

9. The device for repairing surface defects of ancient wooden structures according to claim 8, characterized in that: The top surface of the outer gear ring (263) and the bottom surface of the lower bottom ring (265) are both provided with an annular groove (264); the box body (2) is symmetrically provided with two groups of slide grooves (200); an upper clamping plate (20) and a lower clamping plate (21) are respectively slidably connected in the two symmetrical groups of slide grooves (200); a slider (25) is fixedly connected on the bottom surface of the upper clamping plate (20) and the surface of the lower clamping plate (21); the slider (25) slides in the annular groove (264); a bidirectional screw rod (22) is symmetrically rotatably connected in the box body (2); adjacent upper clamping plates (20) and lower clamping plates (21) are threadedly connected to the bidirectional screw rod (22); two bidirectional screw rods (22) are fixedly connected with synchronous wheels (23); the two synchronous wheels (23) are connected by a synchronous belt (24) to drive the upper clamping plate (20) and the lower clamping plate (21) to move away from or approach each other.

10. A method for repairing a defect on the surface of an ancient wooden structure, comprising the device for repairing a defect on the surface of an ancient wooden structure as claimed in claim 9, characterized in that: The following steps are involved: S1, wrapping the clamp assembly on the column (1) to be repaired, and providing a perforated alignment plate (113) on the clamp assembly, using the alignment groove (115) on the perforated alignment plate (113) to align with the missing part on the column (1), and then perforating the missing part by using a tool; S2. After the hole is chiseled, hammer a wooden block of the same shape into the hole to fill it up; S3. After the wood block is hammered into the chisel hole, the cutter (172) is installed on the clamp assembly, and the clamp assembly is driven to rotate on the column (1). The protruding part of the wood block is cut by the cutter (172), so that the surface of the filled wood block is flush with the surface of the column (1). Then, the sandpaper is installed in the filling groove (16), and the clamp assembly is driven to rotate, and the repaired part is polished by the sandpaper.

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