Tool capable of clamping and heating stringer

Abstract

The utility model discloses a tool capable of clamping and heating a stringer, and belongs to the technical field of composite material part forming. The tool comprises a frame, a heating pad, an end positioning clamping plate, a turnover mechanism and two clamping jaws. The two clamping jaws are detachably fixed to an upper cross beam of the turnover mechanism in a bilateral symmetry mode, the heating pad is detachably fixed to the top ends of the two clamping jaws and located above the upper cross beam, the lower end of the end positioning clamping plate is fixedly connected with one end of the upper cross beam, and the two ends of the turnover mechanism are detachably and fixedly connected with the top ends of the left side wall and the right side wall of the frame. The whole body is of a frame type structure, the clamping jaw is arranged on the upper portion, the overturning shafts are arranged on the two sides of the frame, the end positioning clamping plate is fixedly installed on the upper cross beam of the overturning mechanism, the overall structure is simple, the manufacturing and maintaining cost is low, the tool positioning precision is high, the functions of positioning, heating and the like can be completed at the same time, and the glue joint positioning problem of a part stringer is solved. By means of the tool, rapid positioning of the stringer can be achieved, the production period is shortened, and the production qualification rate is increased.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of composite material part forming, and particularly relates to a long string clamping and heating tool. BACKGROUND

[0002] In the aviation industry, composite materials have become an important choice for aircraft structural materials due to their excellent properties such as light weight, high strength, corrosion resistance, and fatigue resistance. In particular, composite T-shaped string stiffened wall panels have important significance for improving the performance and economy of aircraft due to their application in key parts such as aircraft wings. However, positioning the T-shaped string is a key factor affecting production efficiency and product quality during the manufacturing process of composite T-shaped string stiffened wall panels.

[0003] Traditional composite T-shaped string positioning is achieved using a T-shaped string positioning tool. The design and structure of the T-shaped string positioning tool mainly use a clamping plate with a positioner. This design has many shortcomings: first, the structure is relatively complex, resulting in high manufacturing and maintenance costs for the tool, and low tool precision; second, the operation process is cumbersome, requiring a large amount of manpower and time, reducing production efficiency; and third, the single function of the tool results in poor production flexibility. These factors collectively result in low production pass rates, long production cycles, and high production costs.

[0004] With the increasing demand for composite components in the aviation industry and the continuous compression of production time nodes, traditional tool design has been difficult to meet the needs of modern production. Therefore, there is an urgent need to develop a new type of long string clamping and heating tool to improve production efficiency, reduce production costs, and shorten production cycles. SUMMARY

[0005] The utility model aims at solving the above-mentioned problems existing in the prior art and provides a long string clamping and heating tool.

[0006] The long string clamping and heating tool of the utility model can achieve rapid positioning and heating of the long string, thereby improving the automation and intelligent level of the production process.

[0007] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0008] A long string clamping and heating tool, comprising a frame, a heating pad, an end positioning clamping plate, a turnover mechanism, and two clamping jaws; the two clamping jaws are symmetrically and detachably fixed to the upper crossbeam of the turnover mechanism, the top ends of the two clamping jaws are detachably fixed with the heating pad, the heating pad is located above the upper crossbeam, the lower end of the end positioning clamping plate is fixedly connected to one end of the upper crossbeam, and the two ends of the turnover mechanism are detachably fixedly connected to the top ends of the left and right side walls of the frame.

[0009] Further, the frame comprises a base and left and right side walls; the left and right side walls are respectively fixed on the left and right sides of the upper end of the base, and the top ends of the left and right side walls are respectively provided with a turnover shaft connecting interface.

[0010] Further, the left and right side walls of the frame are respectively provided with a lifting ring at the corresponding positions.

[0011] Further, the two clamping jaw structures are the same and each comprises an edge strip open angle side moving block, an edge strip closed angle side fixed block, a gas cylinder, a pressure sensor, a linear slide rail, a connecting plate, a connecting seat, an electric cylinder, two elastic components and two guide columns; the linear slide rail is fixed on the upper end of the edge strip closed angle side fixed block, the edge strip open angle side moving block is slidably connected with the linear slide rail, a clamping opening is formed between the edge strip closed angle side fixed block and the edge strip open angle side moving block, one end of each of the two elastic components is fixedly connected with the bottom surface of the edge strip closed angle side fixed block, the other end of each of the two elastic components is fixedly connected with the top surface of the connecting plate, the cylinder body of the electric cylinder is fixedly connected with the connecting seat, the connecting seat is detachably fixedly connected with the upper cross beam, the cylinder rod of the electric cylinder is slidably connected through the connecting seat and fixedly connected with the connecting plate, the two guide columns are symmetrically arranged and the lower ends thereof are fixedly connected with the side wall of the cylinder body of the electric cylinder, the upper ends of the two guide columns are slidably connected through the connecting plate and fixedly connected with the bottom surface of the edge strip closed angle side fixed block, and the two elastic components are sleeved outside the corresponding guide columns; the gas cylinder is fixed on the edge strip closed angle side fixed block, the cylinder rod of the gas cylinder is fixedly connected with the edge strip open angle side moving block; the pressure sensor is arranged close to the edge strip at the lower end of the edge strip closed angle side fixed block.

[0012] Further, the heating pad is composed of a silica gel pad and a resistance wire arranged inside the silica gel pad.

[0013] Further, the resistance wire is connected with a temperature control probe, the temperature control probe is connected with an intelligent digital display temperature controller, and the intelligent digital display temperature controller is connected with the resistance wire.

[0014] Further, the two elastic components are each a rectangular spring, and the two rectangular springs are sleeved outside the corresponding guide columns.

[0015] Further, a one-way check valve is arranged on the gas cylinder connecting pipeline.

[0016] Further, the end positioning clamping plate comprises a clamping plate and a connecting corner seat; the lower end of the clamping plate is fixedly connected with the top surface of the connecting corner seat, the connecting corner seat is fixedly connected with the upper cross beam, and a longeron end positioning protrusion is arranged on the clamping plate.

[0017] Further, the turnover mechanism comprises a hand wheel, an upper cross beam, two bearing seats and two turnover shafts; the two bearing seats are respectively detachably fixedly installed in the turnover shaft connecting interfaces at the top ends of the left and right side walls of the frame, the two bearing seats are coaxially arranged, the two turnover shafts are rotatably connected with the two bearing seats, the two turnover shafts are fixedly connected with the two ends of the upper cross beam, and the two turnover shafts are coaxially arranged, and one end of one of the two turnover shafts is fixedly provided with the hand wheel.

[0018] The utility model discloses relative to prior art's beneficial effect is: the utility model discloses whole frame type structure is set up to the upper part of clamping jaw, and the frame both sides are set over -turning shaft, and the upper crossbeam of over -turning mechanism is fixed installation end head position card, and the whole structure is simple, and the manufacturing and maintenance cost are lower, and the tool positioning precision is high, and can complete positioning and heating simultaneously and so on Function, solved the part long string gluing positioning problem. Utilize the tool of the utility model can realize to long string quick positioning, and reduced production cycle, improved production qualified rate. In addition, the tool of the utility model still has following merits:

[0019] 1) tool designs the automation clamping jaw, only needs to place long string to the position, through the cylinder clamping positioning clamping jaw.

[0020] 2) tool adopts two electric cylinders and realizes the gluing of long string to the pressure.

[0021] 3) tool designs heating temperature control device (including heating pad, temperature control probe and intelligent digital display temperature controller), can realize the heating and temperature control of the glue film of long string edge strip surface.

[0022] 4) tool whole light, convenient to transfer uses. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the axonometric view of the tool of the utility model of long string clamping and heating;

[0024] Figure 2 It is the front view of the tool of the utility model of long string clamping and heating;

[0025] Figure 3 It is the plan view of the tool of the utility model of long string clamping and heating;

[0026] Figure 4 It is the side view of the tool of the utility model of long string clamping and heating;

[0027] Figure 5 It is the axonometric view of clamping jaw;

[0028] Figure 6 It is the front view of clamping jaw;

[0029] Figure 7 It is the plan view of clamping jaw;

[0030] Figure 8 It is the side view of clamping jaw;

[0031] Figure 9 It is the axonometric view of heating pad;

[0032] Figure 10 It is the axonometric view of end head position card.

[0033] Figure 11 is an axonometric view of the frame;

[0034] Figure 12 is a front view of the frame;

[0035] Figure 13 is a top view of the frame;

[0036] Figure 14 is a side view of the frame;

[0037] Figure 15 is a connection block diagram of the elements of the heating temperature control device.

[0038] The component names and reference numerals involved in the above figures are as follows:

[0039] Frame 01, base 011, left and right side walls 012, clamping jaws 02, edge strip opening angle side moving blocks 021, edge strip closing angle side positioning blocks 022, air cylinders 023, pressure sensors 024, linear slide rails 025, connecting plates 026, connecting seats 027, electric cylinders 028, elastic components 029, guide columns 0210, heating pads 03, end positioning clamping plates 04, clamping plates 041, connecting angle seats 042, overturning mechanisms 05, overturning shafts 051, bearing seats 052, hand wheels 053, upper cross beams 054. DETAILED DESCRIPTION

[0040] As shown in Figures 1-4 , the embodiment discloses a long string clamping and heating tool, which comprises a frame 01, a heating pad 03, an end positioning clamping plate 04, an overturning mechanism 05 and two clamping jaws 02; the two clamping jaws 02 are symmetrically detachably fixed on the upper cross beam 054 of the overturning mechanism 05, the top ends of the two clamping jaws 02 are detachably fixed with the heating pad 03, the heating pad 03 is located above the upper cross beam 054, the lower end of the end positioning clamping plate 04 is fixedly connected with one end of the upper cross beam 054, and the two ends of the overturning mechanism 05 are detachably fixedly connected with the top ends of the left and right side walls 012 of the frame 01.

[0041] The tool is provided with the heating pad 03, so that the heating of the adhesive film on the long string edge strip surface is realized, the adhesive force of the adhesive film is improved, the adhesive property of the adhesive film is improved, and therefore the production quality is improved.

[0042] Further, as shown in Figures 11-14 , the frame 01 comprises a base 011 and left and right side walls 012; the left and right side walls 012 are fixedly connected with the left and right sides of the upper end of the base 011, respectively, and the overturning shaft connecting interfaces are arranged at the corresponding positions of the top ends of the left and right side walls 012. The frame 01 not only guarantees the overall strength, but also reduces the structural weight.

[0043] Further, as shown in Figure 11As shown, the left and right side walls 012 of the frame 01 are respectively fixed with lifting rings (for transfer of the tooling) at corresponding positions. Figure 11 not shown in the figure.

[0044] Further, as shown in Figure 1 , Figures 5-8 , the two clamping jaws 02 are structurally identical and each include an edge strip open-angle side moving block 021, an edge strip closed-angle side positioning block 022, a gas cylinder 023 (a stainless steel mini gas cylinder), a pressure sensor 024, a linear slide rail 025, a connecting plate 026, a connecting seat 027, an electric cylinder 028, two elastic components 029, and two guide columns 0210; the linear slide rail 025 is fixed to the upper end of the edge strip closed-angle side positioning block 022, and the edge strip open-angle side moving block 021 is slidably connected to the linear slide rail 025 (the edge strip open-angle side moving block 021 and the edge strip closed-angle side positioning block 022 are connected and positioned by the linear slide rail 025 to ensure linear movement of the relative positions), a clamping opening is formed between the edge strip closed-angle side positioning block 022 and the edge strip open-angle side moving block 021, one end of each of the two elastic components 029 is fixedly connected to the bottom surface of the edge strip closed-angle side positioning block 022, the other end of each of the two elastic components 029 is fixedly connected to the top surface of the connecting plate 026, the cylinder body of the electric cylinder 028 is fixedly connected to the connecting seat 027, the connecting seat 027 is detachably fixedly connected to the upper cross beam 054 by bolts, the cylinder rod of the electric cylinder 028 slidably passes through the connecting seat 027 and is fixedly connected to the connecting plate 026 (an elastic component is arranged between the edge strip closed-angle side positioning block 022 and the electric cylinder 028 to adjust the pressure relative to the skin edge strip surface. The electric cylinder 028 is used to press the longeron after the wallboard tooling and the gluing positioning tooling (i.e., the tooling of the utility model) are closed), the two guide columns 0210 are symmetrically arranged and the lower ends thereof are fixedly connected to the side wall of the cylinder body of the electric cylinder 028, the upper ends of the two guide columns 0210 slidably pass through the connecting plate 026 and are fixedly connected to the bottom surface of the edge strip closed-angle side positioning block 022, and the two elastic components 029 are sleeved outside the respective corresponding guide columns 0210; the gas cylinder 023 is fixed to the edge strip closed-angle side positioning block 022, and the cylinder rod of the gas cylinder 023 is fixedly connected to the edge strip open-angle side moving block 021 (the cylinder rod of the gas cylinder 023 drives the edge strip open-angle side moving block 021 to slide on the linear slide rail 025 to realize linear movement of the edge strip open-angle side moving block 021 relative to the edge strip closed-angle side positioning block 022. The edge strip open-angle side moving block 021 and the edge strip closed-angle side positioning block 022 are connected by the linear slide rail 025 to ensure the movement accuracy of the edge strip open-angle side moving block 021); the pressure sensor 024 is arranged close to the edge strip position at the lower end of the edge strip closed-angle side positioning block 022 (used for detecting the pressure of the longeron edge strip surface during gluing, and the value of the pressure sensor 024 is transmitted in real time to a handheld movable touch screen device, which is an external device).

[0045] The edge strip open-angle side moving block 021 and the edge strip closed-angle side positioning block 022 are made of 6061-T651 aluminum plates after welding and numerical control machining.

[0046] The edge strip closing angle side positioning block 022 is L-shaped, and the edge strip opening angle side moving block 021 has two right-angled bends in opposite directions.

[0047] The edge strip closing angle side positioning block 022 is mainly used for positioning the side of the long string web plate and the edge strip, to ensure the position accuracy of the web plate axis to be ±0.5 mm.

[0048] The movement of the edge strip opening angle side moving block 021 relative to the edge strip closing angle side positioning block 022 mainly depends on the piston extension and retraction of the stainless steel mini-cylinder to drive the movement of the edge strip opening angle side moving block 021. To ensure that the movement between the edge strip opening angle side moving block 021 and the edge strip closing angle side positioning block 022 is along a straight line, a linear slide rail 025 is used to connect them to ensure their accuracy.

[0049] Further, as shown in Figure 1 , Figure 9 , the heating pad 03 is composed of a silica gel pad and a resistance wire arranged inside the silica gel pad.

[0050] The resistance wire is arranged inside the silica gel pad for heating. The resistance wire generates heat through the Joule effect. When an electric current passes through the resistance wire with resistance, the electric energy is converted into heat energy according to the Joule law, which is transferred to the silica gel pad to achieve heating.

[0051] Further, as shown in Figure 15 , the resistance wire is connected with a temperature control probe, the temperature control probe is connected with an intelligent digital display temperature controller, and the intelligent digital display temperature controller is connected with the resistance wire. The resistance wire generates heat, the temperature generated by the resistance wire is detected through the temperature control probe, and the signal is transmitted to the intelligent digital display temperature controller. The intelligent digital display temperature controller receives the signal of the temperature control probe, displays the current temperature, compares it with the set temperature, and controls the heating state of the resistance wire to maintain the set temperature range of 0-180℃. The temperature control probe and the intelligent digital display temperature controller are both purchased components.

[0052] Further, as shown in Figure 5 , Figure 6 , both of the elastic components 029 are rectangular springs, and the two rectangular springs are sleeved outside the respective guide columns 0210.

[0053] When pressurizing, the electric cylinder 028 pressurizes relative to the rectangular spring, and the elastic force generated by the compressed rectangular spring pressurizes the lower part of the clamping jaw 02. The measurement and feedback of the pressure are transmitted through the pressure sensor 024. When the pressure value reaches the required value, the electric cylinder 028 stops pressurizing the rectangular spring, realizing the constancy of the pressure.

[0054] Further, a one-way check valve is arranged on the cylinder 023 connecting pipeline. The edge strip opening angle side moving block 021 is moved to the specified position to cut off the gas, thereby preventing the cylinder 023 from unloading force and causing the longeron to fall.

[0055] Further, as shown in Figure 1 、 Figure 10 The end positioning clamping plate 04 comprises a clamping plate 041 and a connecting angle seat 042; the lower end of the clamping plate 041 is fixedly connected with the top surface of the connecting angle seat 042, the connecting angle seat 042 is fixedly connected with the upper cross beam 054, and the clamping plate 041 is provided with a longeron end positioning boss in the length direction, which is used for positioning the end of the longeron in the length direction.

[0056] The clamping plate 041 is made of 6061-T651 aluminum plate and is processed by numerical control, and the connecting angle seat 042 is used for connecting the clamping plate 041 and the upper cross beam 054.

[0057] Further, as shown in Figures 1-4 The turnover mechanism 05 comprises a hand wheel 053, an upper cross beam 054, two bearing seats 052 and two turnover shafts 051; the two bearing seats 052 are respectively detachably fixedly installed in the turnover shaft connecting interfaces at the top ends of the left and right side walls 012 of the frame 01, the two bearing seats 052 are coaxially arranged, the two turnover shafts 051 are rotationally connected with the two bearing seats 052, the two turnover shafts 051 are fixedly connected with the two ends of the upper cross beam 054, and the two turnover shafts 051 are coaxially arranged, and one end of one of the turnover shafts 051 is fixedly provided with the hand wheel 053.

[0058] The turnover mechanism 05 is mainly used for overturning the gluing positioning tool (i.e. the tool of the utility model), the turnover shaft 051 is assembled in the bearing seat 052, and the upper cross beam 054 and the components above the upper cross beam 054 of the tool are overturned by 180° by using the hand wheel 053.

[0059] The tool of the utility model is designed with automatic clamping jaws, the longeron only needs to be placed in position, the longeron is clamped in the clamping opening of the clamping jaw 02 by driving the cylinder 023. The tool is also designed with a pressing device (mainly comprising an electric cylinder 028, a connecting plate 026, two guide columns 0210 and two rectangular springs), the gluing of the longeron is realized by adopting the pressing mode of the two electric cylinders 028. The tool is provided with a heating pad 03, the heating of the rubber film of the longeron edge strip surface is realized, the product qualification rate and the production efficiency are improved, the tool is light in the whole, and the tool is convenient to transfer and use.

[0060] The process of clamping and heating the longeron by using the tool of the utility model is as follows:

[0061] Step one: preparing the longeron which is formed and has a glued film, preparing the wallboard forming tool on which the wet skin is laid and pasted, and preparing the tool (the gluing positioning tool) of the utility model which is previously debugged;

[0062] Step two: the clamping jaw 02 of the tool is placed upwards, the sliding edge strip opening angle side moving block 021 is slid, the clamping jaw 02 is opened, the stroke of electric cylinder 028 is shortened to the shortest, the long web is taken and placed in the clamping opening, and the long web end head positioning boss is used to position the long web end head; then the clamping jaw 02 close to the end head positioning clamp plate 04 one side is adhered to close the clamping jaw 02, and the other clamping jaw 02 is closed;

[0063] Step three: the heating pad 03 is placed on the upper end of the clamping jaw 02 for heating;

[0064] Step four: the hand wheel 053 is shaken, the upper cross beam 054 and the above components are turned over 180 °

[0065] Step five: the clamping positioning assembly connecting lifting appliance is hung from the tool (that is, the upper cross beam 054 and the two clamping jaws 02, the heating pad 03 and the long web are hung away);

[0066] Step six: the clamping positioning assembly is matched with the wallboard forming tool;

[0067] Step eight: the heating pad 03 is pulled out from the tool;

[0068] Step nine: the stroke of electric cylinder 028 is extended to make the long web and the skin adhere.

[0069] The tool structure is simple, the part forming process is reduced, and the production efficiency is improved; the tool has a heating function, the part production quality is improved; and the turnover mechanism structure is simple and convenient to use.

[0070] The above is only the preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme and utility model concept of the utility model, equivalent replacement or change are covered in the protection scope of the utility model.

Claims

1. A long string clampable and heatable tool, characterized by: The utility model provides a kind of heating device for the end of pipe, including frame (01), heating pad (03), end positioning card plate (04), turnover mechanism (05) and two clamping jaws (02);Two clamping jaws (02) are symmetrical and detachably fixed on the upper crossbeam (054) of turnover mechanism (05), and the top of two clamping jaws (02) is detachably fixed with heating pad (03), and heating pad (03) is located above the upper crossbeam (054), and end positioning card plate (04) is fixedly connected with one end of the upper crossbeam (054), and the top of the left and right side walls (012) of frame (01) is detachably fixedly connected with the two ends of turnover mechanism (05).

2. The tooling apparatus of claim 1, wherein: The frame (01) includes a base (011) and left and right side walls (012), and the left and right side walls (012) are fixedly connected to the left and right sides of the upper end of the base (011), respectively.

3. The tooling of claim 1 wherein: The left and right side walls (012) of the frame (01) are fixedly connected with eye rings at corresponding positions.

4. The tooling of claim 1 wherein: The two clamping jaws (02) are identical in structure and each include a rim strip open-angle side moving block (021), a rim strip closed-angle side fixed block (022), a gas cylinder (023), a pressure sensor (024), a linear slide rail (025), a connecting plate (026), a connecting seat (027), an electric cylinder (028), two elastic components (029), and two guide columns (0210). The linear slide rail (025) is fixedly connected to the upper end of the rim strip closed-angle side fixed block (022), and the rim strip open-angle side moving block (021) is slidably connected to the linear slide rail (025). A gap is formed between the rim strip closed-angle side fixed block (022) and the rim strip open-angle side moving block (021). One end of each of the two elastic components (029) is fixedly connected to the bottom surface of the rim strip closed-angle side fixed block (022), and the other end of each of the two elastic components (029) is fixedly connected to the top surface of the connecting plate (026). The cylinder body of the electric cylinder (028) is fixedly connected to the connecting seat (027), and the connecting seat (027) is detachably fixedly connected to the upper crossbeam (054). The cylinder rod of the electric cylinder (028) slides through the connecting seat (027) and is fixedly connected to the connecting plate (026). The two guide columns (0210) are symmetrically arranged and each has a lower end fixedly connected to the side wall of the cylinder body of the electric cylinder (028). The upper ends of the two guide columns (0210) slide through the connecting plate (026) and are fixedly connected to the bottom surface of the rim strip closed-angle side fixed block (022). Each of the two elastic components (029) is sleeved outside the corresponding guide column (0210). The gas cylinder (023) is fixedly connected to the rim strip closed-angle side fixed block (022), and the cylinder rod of the gas cylinder (023) is fixedly connected to the rim strip open-angle side moving block (021). The pressure sensor (024) is arranged close to the rim strip at the lower end of the rim strip closed-angle side fixed block (022).

5. The tooling of claim 1 wherein: The heating pad (03) is composed of a silica gel pad and a resistance wire arranged inside the silica gel pad.

6. The long string clampable and heatable tooling according to claim 5, characterized in that: The resistance wire is connected to a temperature control probe, the temperature control probe is connected to an intelligent digital display temperature controller, and the intelligent digital display temperature controller is connected to the resistance wire.

7. The long string clampable and heatable tooling of claim 4, wherein: Each of the two elastic components (029) is a rectangular spring, and each rectangular spring is sleeved outside the corresponding guide column (0210).

8. The long string clampable and heatable tooling of claim 4, wherein: A one-way check valve is arranged on the cylinder (023) connecting pipeline.

9. The long string clampable and heatable tooling of claim 1, wherein: The end positioning clamping plate (04) comprises a clamping plate (041) and a connecting corner base (042); the lower end of the clamping plate (041) is fixedly connected with the top surface of the connecting corner base (042), the connecting corner base (042) is fixedly connected with the upper cross beam (054), and the clamping plate (041) is provided with a longeron end positioning boss.

10. The long string clampable and heatable tooling of claim 2, wherein: The overturning mechanism (05) comprises a hand wheel (053), an upper cross beam (054), two bearing seats (052) and two overturning shafts (051); the two bearing seats (052) are respectively detachably fixedly installed in the overturning shaft connecting interfaces at the top ends of the left and right side walls (012) of the frame (01), the two bearing seats (052) are coaxially arranged, the two overturning shafts (051) are rotationally connected with the two bearing seats (052), the two overturning shafts (051) are fixedly connected with the two ends of the upper cross beam (054), and the two overturning shafts (051) are coaxially arranged, and one end of one of the overturning shafts (051) is fixedly installed with the hand wheel (053).

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