Cement-based composite material civil air defense door machining tool and machining process thereof

Abstract

The invention discloses a cement-based composite material civil air defense door machining tool and a machining process thereof, and belongs to the technical field of civil air defense door manufacturing equipment.The cement-based composite material civil air defense door machining tool and the machining process thereof have the advantages that the position of a framework is accurately fixed through a positioning tool, and the error problem caused by manual positioning and fixing is avoided; and the overall structure and performance of the civil defense door are improved. According to the civil air defense door produced through the civil air defense door machining tool made of the cement-based composite material and the machining technology of the civil air defense door machining tool, the back rib plate is formed on the back of the civil air defense door panel, the performance of the civil air defense door is met, meanwhile, the weight of the civil air defense door is reduced, and the installation difficulty and the requirement for a building foundation structure are lowered. The machining process is simple and efficient, automatic production is easy to achieve, and the machining efficiency and quality of the civil air defense door are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of civil air defense door manufacturing equipment, and in particular relates to a cement-based composite material civil air defense door processing tool and a processing technology thereof. Background Art

[0002] As an important part of modern civil defense projects, the quality and performance of cement-based composite civil defense doors are directly related to the protection effect. However, there are some problems that need to be solved in the existing cement-based composite civil defense door processing technology.

[0003] In the frame installation process, the existing technology usually relies on manual positioning and fixing of the frame. This method is not only inefficient, but also prone to inaccurate frame installation positions due to human operation errors, thus affecting the overall structure and performance of the civil air defense door. In addition, inaccurate frame positioning may also lead to problems such as uneven material distribution and insufficient door strength during the subsequent pouring process.

[0004] During the pouring process, the existing technology usually adopts the method of full pouring. Although this method is simple to operate, it will cause the civil air defense door to be too heavy, which not only increases the difficulty of installation, but also puts higher requirements on the basic structure of the building. Heavy civil air defense doors require more powerful lifting equipment during the installation process, which increases construction costs and safety hazards. At the same time, overweight civil air defense doors may also cause additional pressure on the load-bearing structure of the building, affecting the stability and safety of the building.

[0005] Therefore, it is particularly important to develop a tooling and processing technology that can solve the above problems and improve the processing efficiency and quality of civil air defense doors. Summary of the invention

[0006] In view of the deficiencies in the above-mentioned background technology, the present invention aims to provide a cement-based composite material civil air defense door processing tooling and a processing technology thereof, which solves the problems of inaccurate skeleton positioning and excessive weight of cement-based composite material civil air defense door in the prior art cement-based composite material civil air defense door processing technology.

[0007] In order to achieve the above-mentioned invention object, the technical solution adopted by the present invention is as follows: a cement-based composite material civil air defense door processing tool is provided, the cement-based composite material civil air defense door comprises a door leaf, the door leaf comprises a panel and a back rib plate arranged on the back of the panel, the preparation materials of the panel and the back rib plate are both cement-based composite materials, the back rib plate is in a rectangular grid shape, and a rectangular grid-shaped skeleton is arranged inside the back rib plate; The processing tooling includes a casting tooling and a positioning tooling, and the casting tooling includes a support base, a casting frame and a molding assembly; the casting frame is arranged on the upper end surface of the support base and is circumferentially closed, and the area between the upper end surface of the support base and the inner walls of the casting frame is the panel casting area, and the panel is formed by casting cement-based composite materials into the panel casting area and solidifying the cement-based composite materials; the area between the back of the panel and the inner walls of the casting frame is the back rib casting area; the molding assembly includes a first fixing frame located at the top of the casting frame, and a plurality of convex molds are evenly spaced on the first fixing frame, and the gap between two adjacent convex molds matches the size of the back ribs; The positioning tooling includes a second fixing frame, on which a plurality of positioning clips for connecting the frame are arranged, and the second fixing frame places the frame in the back rib casting area through the plurality of positioning clips; by pouring the cement-based composite material into the back rib casting area, the first fixing frame drives the plurality of punches to be pressed down to a preset depth, and the back rib is formed after the cement-based composite material is solidified.

[0008] Furthermore, as a specific shape and connection method of each punch, each punch is a hollow columnar structure with an opening at the top and a sealed bottom; each punch is fixedly connected to the lower end surface of the first fixing frame through a connecting seat.

[0009] Furthermore, as a specific setting method of the first fixed frame, the first fixed frame includes multiple cross beams and longitudinal beams, and the multiple cross beams and longitudinal beams are criss-cross connected in a rectangular grid shape; a connecting seat is provided on the lower end surface of the intersection of the cross beams and the longitudinal beams, and each connecting seat includes a connecting plate, which is fixedly connected to the lower end surface of the intersection of the cross beams and the longitudinal beams, and the lower end surface of the connecting plate is provided with multiple connecting rods, and the bottom ends of the multiple connecting rods are extended into the interior of the punch and fixedly connected thereto; a connecting ear plate for connecting to the pressing device is provided at the four corners of the top of the first fixed frame.

[0010] Furthermore, a plurality of positioning and guiding components are arranged between the first fixing frame and the casting frame, and each of the positioning components includes a first mounting seat and a second mounting seat, the first mounting seat is arranged on the outer side wall of the first fixing frame, and a guide cylinder is vertically arranged on the first mounting seat; the second mounting seat is arranged on the outer side wall of the casting frame, the position of the second mounting seat matches the position of the first mounting seat, and a guide rod is vertically arranged on the second mounting seat and slides with the guide cylinder.

[0011] Furthermore, the second fixing frame is connected with a plurality of positioning cylinders through a plurality of brackets, and the plurality of positioning cylinders are fixedly connected to the frame, and each positioning cylinder is horizontally arranged and the outer end is located outside the frame; each bracket includes a support, and the end of the support is detachably connected with a connecting positioning mandrel, and the connecting positioning mandrel is slidably arranged inside the positioning cylinder; A plurality of positioning holes and a plurality of positioning shafts are arranged on the side walls around the casting frame. The plurality of positioning holes and positioning shafts are in a one-to-one matching relationship with a plurality of positioning tubes. The outer wall of the positioning tube is located in the positioning hole, and each positioning shaft passes through the positioning hole and is located in the positioning tube.

[0012] This solution also provides a processing technology for cement-based composite material civil air defense door processing tooling, which includes: Step 1: Prepare the frame according to the size and shape of the civil air defense door; Step 2, mixing the cement-based composite material and the reinforcing fiber in proportion to form a fluid casting material; Step 3: quantitatively inject the casting material into the panel casting area, and form the panel after the casting material solidifies; Step 4, fix the frame to the multiple positioning clips on the second fixing frame, place the frame on the panel by hoisting the second fixing frame and position the frame; after the frame is positioned, remove the positioning tooling; Step 5: quantitatively inject the casting material into the casting area of ​​the back rib plate, and the downward pressing device presses the forming mold into the casting material until the casting material rises to a preset height and then stops; Step 6: After the pouring material solidifies to form the back ribs, remove the support base, pouring frame and molding components to form the door leaf; Step 7: Place the door leaf in a steam curing tank for steam curing until it reaches a predetermined strength; Step 8: Install the locking mechanism, hinge mechanism and closed beam mechanism on the maintained door leaf, and fix them to the door frame to form a cement-based composite material civil air defense door.

[0013] Further, in step 4, the step of positioning the skeleton includes: Step 4.1, clamping a plurality of positioning clips on the second fixing frame on the frame and engaging the positioning mandrel with the positioning cylinder; Step 4.2: Use the hoisting equipment to hoist the second fixed frame and hoist the frame into the back rib casting area; Step 4.3, remove the support and the positioning mandrel, and move the frame so that the outer end of the positioning cylinder is located in the positioning hole; Step 4.4: After inserting the positioning shaft into the positioning tube through the positioning hole and removing multiple positioning clips, the positioning of the frame is completed.

[0014] Further, in step 7, the curing conditions of the steam curing tank include curing at a temperature range of 20°C to 60°C and a relative humidity of not less than 90% for at least 24 hours.

[0015] The beneficial effects of the present invention are as follows: a cement-based composite material civil air defense door processing tool and its processing technology in the present invention accurately fixes the position of the skeleton through the positioning tool, avoids the error problem caused by manual positioning and fixing, and improves the overall structure and performance of the civil air defense door. The civil air defense door produced by the cement-based composite material civil air defense door processing tool and its processing technology in this scheme forms a back rib on the back of the civil air defense door panel, which not only meets the performance of the civil air defense door, but also reduces the weight of the civil air defense door, reduces the difficulty of installation and the requirements for the building's infrastructure. The processing technology is simple and efficient, and it is easy to realize automated production, which improves the processing efficiency and quality of the civil air defense door. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the casting tooling.

[0017] Figure 2 Schematic diagram of the three-dimensional structure of the positioning tool fixing skeleton.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the panel within the casting frame.

[0019] Figure 4 This is a schematic diagram of the structure of the back rib within the casting frame.

[0020] Figure 5 This is a schematic diagram of the structure of the cement-based composite material civil defense door leaf.

[0021] Among them, 1. panel; 2. back rib; 3. frame; 4. casting tool; 41. support base; 42. casting frame; 43. molding assembly; 431. first fixed frame; 432. punch; 44. connecting seat; 441. connecting plate; 442. connecting rod; 45. connecting ear plate; 5. panel casting area; 6. back rib casting area; 7. positioning tool; 71. second fixed frame; 72. positioning clamp; 8. positioning guide assembly; 81. first mounting seat; 82. second mounting seat; 83. guide cylinder; 84. guide rod; 9. positioning cylinder; 10. support; 11. positioning mandrel; 12. positioning hole; 13. positioning shaft. DETAILED DESCRIPTION

[0022] The specific implementation modes of the present invention are described below so that those skilled in the art can understand the present invention. However, it should be clear that the present invention is not limited to the scope of the specific implementation modes. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the attached claims, these changes are obvious, and all inventions and creations utilizing the concept of the present invention are protected.

[0023] The present invention provides a cement-based composite material civil air defense door processing tooling, such as Figure 2 and 5 As shown, the cement-based composite civil air defense door includes a door leaf, which includes a panel 1 and a back rib 2 arranged on the back of the panel 1. The preparation materials of the panel 1 and the back rib 2 are both cement-based composite materials. The back rib 2 is in a rectangular grid shape, and a frame 3 in the shape of a rectangular grid is arranged inside the back rib 2.

[0024] The processing tooling includes a casting tooling 4 and a positioning tooling 7. Specifically, Figure 1 , Figure 3 and Figure 4 As shown, the casting tool 4 includes a supporting base 41, a casting frame 42 and a molding component 43; the casting frame 42 is arranged on the upper end surface of the supporting base 41 and is circumferentially closed, the area between the upper end surface of the supporting base 41 and the inner walls around the casting frame 42 is the panel casting area 5, and the panel 1 is formed by casting the cement-based composite material into the panel casting area 5 and solidifying it; the area between the back side of the panel 1 and the inner walls around the casting frame 42 is the back rib casting area 6; the molding component 43 includes a first fixing frame 431 located at the top of the casting frame 42, and a plurality of convex molds 432 are evenly spaced on the first fixing frame 431, and the gap between two adjacent convex molds 432 matches the size of the back rib 2.

[0025] like Figure 2 As shown, the positioning tool 7 includes a second fixing frame 71, on which a plurality of positioning clips 72 for connecting the skeleton 3 are arranged. The second fixing frame 71 places the skeleton 3 in the back rib casting area 6 through the plurality of positioning clips 72; by pouring the cement-based composite material into the back rib casting area 6, the first fixing frame 431 drives the plurality of punches 432 to be pressed down to a preset depth, and the back rib 2 is formed after the cement-based composite material is solidified.

[0026] Specifically, each of the male molds 432 is a hollow columnar structure with an open top and a sealed bottom; each of the male molds 432 is fixedly connected to the lower end surface of the first fixing frame 431 via a connecting seat 44 .

[0027] Specifically, the first fixing frame 431 includes a plurality of transverse beams and longitudinal beams, and the plurality of transverse beams and longitudinal beams are crisscrossed and connected in a rectangular grid shape; a connecting seat 44 is provided on the lower end surface of the intersection of the transverse beams and the longitudinal beams, and each connecting seat 44 includes a connecting plate 441, and the connecting plate 441 is fixedly connected to the lower end surface of the intersection of the transverse beams and the longitudinal beams, and a plurality of connecting rods 442 are provided on the lower end surface of the connecting plate 441, and the bottom ends of the plurality of connecting rods 442 are extended into the interior of the punch 432 and fixedly connected thereto; a connecting ear plate 45 for connecting to a pressing device is provided at each of the four corners of the top of the first fixing frame 431.

[0028] A plurality of positioning guide assemblies 8 are arranged between the first fixing frame 431 and the casting frame 42, and each of the positioning assemblies includes a first mounting seat 81 and a second mounting seat 82. The first mounting seat 81 is arranged on the outer side wall of the first fixing frame 431, and a guide cylinder 83 is vertically arranged on the first mounting seat 81; the second mounting seat 82 is arranged on the outer side wall of the casting frame 42, and the position of the second mounting seat 82 matches the position of the first mounting seat 81, and a guide rod 84 is vertically arranged on the second mounting seat 82 and slides with the guide cylinder 83.

[0029] The second fixing frame 71 is connected with a plurality of positioning cylinders 9 through a plurality of brackets. The plurality of positioning cylinders 9 are fixedly connected to the frame 3. Each positioning cylinder 9 is horizontally arranged and the outer end is located outside the frame 3. Each bracket includes a support 10. The end of the support 10 is detachably connected with a connecting positioning mandrel 11. The connecting positioning mandrel 11 is slidably arranged inside the positioning cylinder 9. When the frame 3 is fixed on the second fixing frame 71, a plurality of positioning clips 72 are clamped on the frame 3. The positioning mandrel 11 cooperates with the positioning cylinder 9 to realize the positioning of the frame 3, prevent the frame 3 from being skewed, and accurately fix the position of the frame 3 on the second fixing frame 71.

[0030] A plurality of positioning holes 12 and a plurality of positioning shafts 13 are arranged on the surrounding side walls of the casting frame 42. The plurality of positioning holes 12 and the positioning shafts 13 are in a one-to-one matching relationship with the plurality of positioning tubes 9. The outer wall of the positioning tube 9 is located in the positioning hole 12, and each positioning shaft 13 passes through the positioning hole 12 and is located in the positioning tube 9. After the skeleton 3 is accurately positioned on the second fixing frame 71, the skeleton 3 also needs to be accurately positioned in the back rib casting area 6. By positioning the outer end of the positioning tube 9 in the positioning hole 12, the accurate positioning of the skeleton 3 in the back rib casting area 6 is achieved. Then, by inserting the positioning shaft 13 into the positioning tube 9 through the positioning hole 12, the skeleton 3 is prevented from moving in the back rib casting area 6, thereby improving the forming quality of the back rib 2.

[0031] This solution also provides a processing technology for cement-based composite material civil air defense door processing tooling, which includes: Step 1: Prepare the frame 3 according to the size and shape of the civil air defense door.

[0032] Step 2: Mix the cement-based composite material and the reinforcing fiber in proportion to form a fluid casting material. In this solution, the cement-based composite material can be the ultra-high performance composite material in the existing invention patent - CN118619606B.

[0033] Step 3, quantitatively injecting casting materials into the panel casting area 5, and forming the panel 1 after the casting materials solidify; Step 4, the skeleton 3 is fixedly connected to the plurality of positioning clips 72 on the second fixing frame 71, and the skeleton 3 is placed on the panel 1 by hoisting the second fixing frame and the skeleton 3 is positioned; after the skeleton 3 is positioned, the positioning tool 7 is removed; Step 5, quantitatively inject the casting material into the casting area 6 of the back rib, and the pressing device presses the forming mold into the casting material until the casting material rises to a preset height and stops. The entire casting process of the back rib 2 is controllable, reducing quality defects. The pressing device can use a driving element such as a hydraulic cylinder. At the same time, when the pressing device drives the first fixing frame 431 and the multiple punches 432 to press and move downward, the guide cylinder 83 cooperates with the guide rod 84 to play a guiding role, avoiding the first fixing frame 431 and the multiple punches 432 from being skewed, improving the position accuracy of the punches 432 and improving the final forming accuracy of the back rib 2.

[0034] Step 6: After the casting material solidifies to form the back rib 2, the support base 41, the casting frame 42 and the forming assembly 43 are removed to form a door leaf.

[0035] Step 7: Place the door leaf in a steam curing tank for steam curing until it reaches a predetermined strength.

[0036] Step 8: Install the locking mechanism, hinge mechanism and closed beam mechanism on the maintained door leaf, and fix them to the door frame to form a cement-based composite material civil air defense door.

[0037] Further, in step 4, the step of positioning the skeleton 3 includes: Step 4.1, clamp the plurality of positioning clips 72 on the second fixing frame 71 on the frame 3 and match the positioning mandrel 11 with the positioning cylinder 9; Step 4.2, use the hoisting equipment to hoist the second fixing frame 71 to hoist the frame 3 into the back rib casting area 6; Step 4.3, remove the support 10 and the positioning mandrel 11, and move the frame 3 so that the outer end of the positioning cylinder 9 is located in the positioning hole 12; Step 4.4: After the positioning shaft 13 is inserted into the positioning tube 9 through the positioning hole 12 and the plurality of positioning clips 72 are removed, the positioning work of the frame 3 is completed.

[0038] Further, in step 7, in step 7, the curing conditions of the steam curing tank include curing for at least 48 hours at a temperature range of 85°C to 90°C and a relative humidity of not less than 90%.

[0039] The processing technology of the above-mentioned cement-based composite material civil air defense door processing tooling can conveniently produce civil air defense doors of various shapes and sizes to meet the needs of different civil air defense projects.

[0040] In summary, the cement-based composite material civil air defense door processing tooling and its processing technology in the present invention accurately fixes the position of the skeleton 3 through the positioning tooling 7, avoids the error problem caused by manual positioning and fixing, and improves the overall structure and performance of the civil air defense door. The civil air defense door produced by the cement-based composite material civil air defense door processing tooling and its processing technology in this scheme forms a back rib 2 on the back of the civil air defense door panel 1, which not only meets the performance of the civil air defense door, but also reduces the weight of the civil air defense door, reduces the difficulty of installation and the requirements for the basic structure of the building. The processing technology is simple and efficient, and it is easy to realize automated production, which improves the processing efficiency and quality of the civil air defense door.

Claims

1. A cement-based composite material civil air defense door processing tool, characterized in that: The cement-based composite civil air defense door comprises a door leaf, the door leaf comprises a panel and a back rib plate arranged on the back of the panel, the panel and the back rib plate are both made of cement-based composite materials, the back rib plate is in a rectangular grid shape, and a frame in a rectangular grid shape is arranged inside the back rib plate; The processing tooling includes a casting tooling and a positioning tooling, and the casting tooling includes a support base, a casting frame and a molding assembly; the casting frame is arranged on the upper end surface of the support base and is circumferentially closed, and the area between the upper end surface of the support base and the inner walls of the casting frame is the panel casting area, and the panel is formed by casting cement-based composite materials into the panel casting area and solidifying the cement-based composite materials; the area between the back of the panel and the inner walls of the casting frame is the back rib casting area; the molding assembly includes a first fixing frame located at the top of the casting frame, and a plurality of convex molds are evenly spaced on the first fixing frame, and the gap between two adjacent convex molds matches the size of the back ribs; The positioning tooling includes a second fixing frame, on which a plurality of positioning clips for connecting the frame are arranged, and the second fixing frame places the frame in the back rib casting area through the plurality of positioning clips; by pouring the cement-based composite material into the back rib casting area, the first fixing frame drives the plurality of punches to be pressed down to a preset depth, and the back rib is formed after the cement-based composite material is solidified.

2. The cement-based composite material civil air defense door processing tooling according to claim 1 is characterized in that: Each of the male molds is a hollow columnar structure with an open top and a sealed bottom; each of the male molds is fixedly connected to the lower end surface of the first fixing frame via a connecting seat.

3. The cement-based composite material civil air defense door processing tooling according to claim 2 is characterized in that: The first fixing frame includes a plurality of transverse beams and longitudinal beams, and the plurality of transverse beams and longitudinal beams are crisscrossed and connected in a rectangular grid shape; a connecting seat is provided on the lower end surface of the intersection of the transverse beams and the longitudinal beams, and each connecting seat includes a connecting plate, and the connecting plate is fixedly connected to the lower end surface of the intersection of the transverse beams and the longitudinal beams, and a plurality of connecting rods are provided on the lower end surface of the connecting plate, and the bottom ends of the plurality of connecting rods are extended into the interior of the punch and fixedly connected thereto; a connecting ear plate for connecting to the pressing device is provided at the four corners of the top of the first fixing frame.

4. The cement-based composite material civil air defense door processing tooling according to claim 1 is characterized in that: A plurality of positioning and guiding components are arranged between the first fixing frame and the casting frame, and each of the positioning components includes a first mounting seat and a second mounting seat, the first mounting seat is arranged on the outer side wall of the first fixing frame, and a guide cylinder is vertically arranged on the first mounting seat; the second mounting seat is arranged on the outer side wall of the casting frame, the position of the second mounting seat matches the position of the first mounting seat, and a guide rod that slides with the guide cylinder is vertically arranged on the second mounting seat.

5. The cement-based composite material civil air defense door processing tooling according to claim 1 is characterized in that: The second fixing frame is connected with a plurality of positioning cylinders through a plurality of brackets, and the plurality of positioning cylinders are fixedly connected to the frame, and each positioning cylinder is horizontally arranged with the outer end thereof being located outside the frame; each bracket comprises a support, and the end of the support is detachably connected with a connecting positioning mandrel, and the connecting positioning mandrel is slidably arranged inside the positioning cylinder; A plurality of positioning holes and a plurality of positioning shafts are arranged on the side walls around the casting frame. The plurality of positioning holes and positioning shafts are in a one-to-one matching relationship with a plurality of positioning tubes. The outer wall of the positioning tube is located in the positioning hole, and each positioning shaft passes through the positioning hole and is located in the positioning tube.

6. A processing technology for the cement-based composite material civil air defense door processing tooling according to any one of claims 1 to 5, characterized in that: include: Step 1: Prepare the frame according to the size and shape of the civil air defense door; Step 2, mixing the cement-based composite material and the reinforcing fiber in proportion to form a fluid casting material; Step 3: quantitatively inject the casting material into the panel casting area, and form the panel after the casting material solidifies; Step 4, fix the frame to the multiple positioning clips on the second fixing frame, place the frame on the panel by hoisting the second fixing frame and position the frame; after the frame is positioned, remove the positioning tooling; Step 5: quantitatively inject the casting material into the casting area of ​​the back rib plate, and the downward pressing device presses the forming mold into the casting material until the casting material rises to a preset height and then stops; Step 6: After the pouring material solidifies to form the back ribs, remove the support base, pouring frame and molding components to form the door leaf; Step 7: Place the door leaf in a steam curing tank for steam curing until it reaches a predetermined strength; Step 8: Install the locking mechanism, hinge mechanism and closed beam mechanism on the maintained door leaf, and fix them to the door frame to form a cement-based composite material civil air defense door.

7. The processing technology of the cement-based composite material civil air defense door processing tooling according to claim 6 is characterized in that: In step 4, the steps of positioning the skeleton include: Step 4.1, clamping a plurality of positioning clips on the second fixing frame on the frame and engaging the positioning mandrel with the positioning cylinder; Step 4.2: Use the hoisting equipment to hoist the second fixed frame and hoist the frame into the back rib casting area; Step 4.3, remove the support and the positioning mandrel, and move the frame so that the outer end of the positioning cylinder is located in the positioning hole; Step 4.4: After inserting the positioning shaft into the positioning tube through the positioning hole and removing multiple positioning clips, the positioning of the frame is completed.

8. The processing technology of the cement-based composite material civil air defense door processing tooling according to claim 6 is characterized in that: In step 7, the curing conditions of the steam curing tank include curing at a temperature range of 85° C. to 90° C. and a relative humidity of not less than 90% for at least 48 hours.

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