Portable adjustable clamping device for pneumatic airfoil spraying

Abstract

The invention discloses a portable adjustable clamping device for pneumatic airfoil spraying. The portable adjustable clamping device comprises a base, a clamp and a connecting piece. Wherein the base comprises a supporting base, a support bracket and a supporting bracket; the supporting bracket is fixedly connected with the support bracket; through holes are formed in the centers of the supporting base, the support bracket and the supporting bracket; the connecting piece penetrates through the through hole to realize the connection of the supporting base, the support bracket and the supporting bracket; the clamp comprises a moving bolt, an upper clamp, a lower clamp and a rotating bolt; the supporting bracket is connected with the upper clamp through a rotating bolt; the upper clamp and the lower clamp are connected through a movable bolt; and the upper clamp and the lower clamp are locked by rotating the movable bolt, so that the workpiece to be machined is clamped.

Description

Technical Field

[0001] The invention relates to a portable adjustable clamping device for pneumatic wing surface spraying, belonging to the technical field of small pneumatic wing surface spraying. Background Art

[0002] The aerodynamic wing surface is an important part of the aerodynamic layout, which is related to the maneuverability and provides good lift. As the requirements for heat protection continue to increase, the thermal conductivity of the coating is small, which can effectively prevent the sudden heat flow from transferring to the inside. Therefore, the heat protection requirements can be met by coating the wing surface. At present, the wing surface spraying relies on the operator to spray the coating on the wing surface with a handheld spray gun. Since there is no fixed support method when spraying the wing surface, it only relies on a simple device to fix the tenon teeth, which causes the wing surface to tilt, roll over, and tip over during the spraying process, which ultimately leads to poor film quality and uneven thickness.

[0003] In view of the characteristics of wing surface products in the development stage, which are of various types, multiple structural forms, and small batches of single pieces, we should produce clamping devices that are relatively versatile, have a wide range of applications, are inexpensive, and meet the needs of safe production.

[0004] The existing clamping device has the problems of no fixed support, low applicability, and difficulty in moving. Summary of the invention

[0005] The technical problem solved by the present invention is to overcome the deficiencies of the prior art and provide a portable adjustable clamping device for aerodynamic wing surface spraying.

[0006] The technical solution of the present invention is:

[0007] The invention discloses a portable adjustable clamping device for pneumatic wing surface spraying, comprising: a base, a clamp and a connecting piece; wherein:

[0008] The base comprises a supporting base, a support bracket and a supporting bracket; the supporting bracket is fixedly connected to the support bracket; through holes are arranged at the centers of the supporting base, the support bracket and the supporting bracket; the connecting piece passes through the through holes to realize the connection between the supporting base, the support bracket and the supporting bracket;

[0009] The clamp comprises a movable bolt, an upper clamp, a lower clamp and a rotating bolt; the support bracket is connected to the upper clamp by the rotating bolt; the upper clamp and the lower clamp are connected by the movable bolt; and the upper clamp and the lower clamp are locked by rotating the movable bolt to clamp the workpiece.

[0010] Furthermore, in the above device, the support base includes a first support base and a second support base; the first support base and the second support base are coaxial; a first groove is set on the upper surface of the middle part of the first support base; a second groove is set on the lower surface of the middle part of the second support base; the first groove and the second groove match each other to achieve the fit between the first support base and the second support base.

[0011] Furthermore, in the above device, the first support base and the second support base are arc-shaped structures, and the first support base and the second support base are detachably fixed to cross along the center line of the arc-shaped structure.

[0012] Furthermore, in the above device, both the movable bolt and the rotating bolt are provided with a rotating handle.

[0013] Furthermore, in the above device, clamp rubber gaskets are adhered to the inner sides of the upper clamp and the lower clamp.

[0014] Furthermore, in the above device, the clamp also includes a first spring, a second spring and a movable bolt nut; wherein the first spring, the second spring and the movable bolt nut are all installed on the movable bolt; the first spring is located between the upper clamp and the lower clamp, and the second spring is located between the lower clamp and the movable bolt nut.

[0015] Furthermore, in the above device, the first support base and the second support base form a triangular structure with the contact surface; the distance between the two end points of the first support base and the second support base is 200 to 400 mm.

[0016] Furthermore, in the above device, the base, the clamp and the connecting parts are all made of cold-rolled steel and have a load-bearing capacity greater than 30 kg.

[0017] The beneficial effects of the present invention and the prior art are:

[0018] (1) The present invention has adjustability and can adapt to clamping of different thicknesses; the bracket is equipped with an adjustable clip and a stable base, and the base is provided with a threaded hole. The reciprocating motion of the mobile clip is achieved by rotating the movable bolt in coordination with the action of the spring. With the support of the reaction force of the spring, the stable output of the pre-tightening force of the two clips is achieved. The tenon teeth are clamped and fixed by the upper and lower clamps (this position is the clampable part of the wing, and the clamp is clamped at this position, which does not affect other subsequent operations and does not damage the apparent quality), and can adapt to wing surfaces of different thicknesses.

[0019] (2) The device of the present invention is light and suitable for various working environments. The present invention adopts a four-corner bracket structure as a whole, which can be applied to various working environments and is convenient for operators to move; operators can adjust the position, angle and posture as needed during the wing support, and the adaptability is strong.

[0020] (3) The present invention is low-cost and easy to store. There are many types of solid rocket engines, and the size and thickness of the wing blades are different. This design realizes the universalization of the wing blade spray support, effectively reduces the cost of model-specific tooling, and reduces the occupation of the work area at the production site. The tooling is easy to disassemble and store when not in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the base structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the connection structure of the support bracket, the support bracket and the base of the present invention;

[0024] Figure 4 It is a schematic diagram of the clamp structure of the present invention. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] like Figure 1 As shown, the present invention discloses a portable adjustable clamping device for aerodynamic wing surface spraying, comprising: a base, a clamp and a connecting piece; wherein,

[0027] The base comprises a supporting base, a support bracket 3 and a supporting bracket 8; the supporting bracket 8 is fixedly connected to the support bracket 3; through holes are arranged at the centers of the supporting base, the support bracket 3 and the supporting bracket 8; the connecting piece passes through the through hole to realize the connection between the supporting base, the support bracket 3 and the supporting bracket 8;

[0028] The clamp includes a movable bolt 4, an upper clamp 5, a lower clamp 6 and a rotating bolt 7; the support bracket 8 is connected to the upper clamp 5 by the rotating bolt 7; the upper clamp 5 and the lower clamp 6 are connected by the movable bolt 4; by rotating the movable bolt 4, the upper clamp 5 and the lower clamp 6 are locked to achieve clamping of the workpiece to be processed.

[0029] Preferably, the support base includes a first support base 1 and a second support base 2; the first support base 1 and the second support base 2 are coaxial; a first groove is set on the middle upper surface of the first support base 1; a second groove is set on the middle lower surface of the second support base 2; the first groove and the second groove match each other to achieve the fit between the first support base 1 and the second support base 2.

[0030] Preferably, the first support base 1 and the second support base 2 are arc-shaped structures, and the first support base 1 and the second support base 2 are detachably fixed across the center line of the arc-shaped structure.

[0031] Preferably, both the movable bolt 4 and the rotating bolt 7 are provided with a rotating handle.

[0032] Preferably, a clamp rubber gasket 11 is adhered to the inner sides of the upper clamp 5 and the lower clamp 6 .

[0033] Preferably, the clamp also includes a first spring 12, a second spring 13 and a movable bolt nut; wherein the first spring 12, the second spring 13 and the movable bolt nut are all installed on the movable bolt 4; the first spring 12 is located between the upper clamp 5 and the lower clamp 6, and the second spring 13 is located between the lower clamp 6 and the movable bolt nut.

[0034] Preferably, the first support base 1 and the second support base 2 form a triangular structure with the contact surface; the distance between the two end points of the first support base 1 and the second support base 2 is 200-400 mm.

[0035] Preferably, the base, the clamps and the connectors are all made of cold-rolled steel and have a load-bearing capacity greater than 30 kg.

[0036] Example

[0037] The portable adjustable clamping device of this embodiment is divided into two major parts: a base and a clamp; the base includes: a first supporting base, a second supporting base, a support bracket, and a supporting bracket; the clamp includes: an upper clamp, a lower clamp, upper and lower clamp rubber gaskets, a rotating bolt, a moving bolt, a first spring, a second spring, etc.

[0038] The support bracket and the support bracket are installed on the first support base and the second support base by bolts, and the four-point support increases its stability. The upper clamp is connected to the support bracket by turning the bolts, and the lower clamp is connected to the upper clamp by using the transmission bolts. The transmission bolts are installed with springs to prevent sliding and loosening. Rubber gaskets are pasted on the inner surfaces of the upper and lower clamps to prevent the product from bumping.

[0039] The following combination Figure 1 , Figure 2 , Figure 3 , Figure 4 The present invention is described in further detail.

[0040] This embodiment is a wing surface spraying clamping tool, and the portable adjustable clamping device is divided into two major parts: a base and a clamp.

[0041] The base part provides one of the main support surfaces at the bottom of the entire device. Its appearance design is similar to a triangular support to enhance the friction and stability with the placement plane. It is made of high-quality cold-rolled steel, which is lightweight and corrosion-resistant, and can withstand a certain amount of pressure and impact without deformation. The base part includes a first support base 1, a second support base 2, a support bracket 3, a support bracket 8, a countersunk bolt 9, and a locking nut 10. Figure 1 ,2 As shown, the first support base 1 and the second support base 2 are concentric, and the two bases are tightly fitted by digging grooves. The two support bases and the ground are approximately in a triangular structure to increase their stability. Figure 3 As shown, the support bracket 3 is located below the support bracket 8. A countersunk bolt 9 is inserted from the through hole at the top of the support bracket 8, passes through the support bracket 3, and passes through the concentric through holes of the first support base 1 and the second support base 2, so that the four parts of the base are connected, and then fixed and locked with a locking nut 10. The countersunk bolt and the locking nut are standard parts. The first support base 1 and the second support base 2 can form a stable triangular structure with the contact surface, ensuring that the clamping device is well balanced and stable and not easy to tip over. The distance between the two fulcrums of the first support base 1 and the second support base 2 is 300 mm, ensuring that the clamping device is small and compact, easy to move, and convenient to store.

[0042] The clamp part includes a moving bolt 4, an upper clamp 5, a lower clamp 6, a rotating bolt 7, a clamp rubber gasket 11, a spring (compression) 12, and a spring (extension) 13. Figure 1 , 3 As shown in Figure 4, the support bracket 8 is connected to the upper clamp 5 by rotating the bolt 7, so as to realize the combination of the base part and the clamp part. The upper clamp 5 is connected to the lower clamp 6 by the movable bolt 4. The double bolt structure makes the clamp part more secure. Rubber anti-skid pads are pasted on the inner sides of the upper and lower clamps to ensure that the force can be evenly applied when the wing surface is clamped and to protect the surface quality of the product. The movable bolt 4 and the rotating bolt 5 are equipped with a rotating handle, which increases the operability and the comfort of the hand. Installed on the movable bolt 4, the spring (compression) 12 is located between the nuts of the upper clamp 5 and the lower clamp 6, and the spring (extension) 13 is located between the nuts of the lower clamp 6 and the movable bolt 4. The function of these two springs is to provide preload to prevent the upper and lower clamps from sliding or loosening due to vibration or external force during use. During the initial installation, the spring is in a certain compression or extension state, and the preload generated can meet the requirements of clamping the wing surface, and when the thickness of the wing surface changes to a certain extent, the spring can adaptively adjust its expansion and contraction to ensure the stability of the clamping.

[0043] The base, fixtures and connectors are all made of cold-rolled steel, with a smooth surface and good flatness. They can withstand greater pressure and are not easily deformed. They can bear a load of 30kg and are suitable for existing wing surface operations. Their good corrosion resistance can adapt to various paint spraying environments.

[0044] Static position relationship and connection relationship:

[0045] 1. Internal connection relationship of the base: The first support base 1 and the second support base 2 are tightly fitted by digging grooves, and the two are concentrically arranged to form a stable bottom support platform. The support bracket 3 is located below the support bracket 8, and the countersunk bolt 9 is inserted from the through hole at the top of the support bracket 8, and passes through the concentric through holes of the support bracket 3, the first support base 1 and the second support base 2 in turn, and finally fixed and locked with the locking nut 10, so that the four parts of the support bracket 8, the support bracket 3, the first support base 1 and the second support base 2 are tightly connected into a whole, forming a stable four-point support structure, and there is no obvious gap or shaking between the components, which ensures the stability and rigidity of the base.

[0046] 2. Connection relationship between the base and the clamp: The support bracket 8 is connected to the upper clamp 5 by a rotating bolt 7. The rotating bolt 7 passes through the connection part on the support bracket 8 and the corresponding connection hole or connection groove on the upper clamp 5 to achieve a rotatable connection between the two, so that the upper clamp 5 can be adjusted relative to the support bracket 8. The upper clamp 5 is connected to the lower clamp 6 by a moving bolt 4. The moving bolt 4 passes through the corresponding threaded holes or through holes on the upper clamp 5 and the lower clamp 6. A spring (compression) 12 and a spring (extension) 13, as well as matching nuts and other components are installed on the moving bolt 4. By tightening the nut, the spring generates a pre-tightening force, and the upper clamp 5 and the lower clamp 6 are tightly connected together. At the same time, the wing thickness within a certain range is allowed to change, and the stability of the clamping can be maintained. Rubber anti-skid pads are pasted on the inner sides of the upper and lower clamps. When the wing surface is clamped, the rubber anti-skid pads are in close contact with the wing surface, which not only protects the wing surface but also increases the friction to prevent the wing surface from sliding.

[0047] Dynamic effect and working principle

[0048] 1. Preparation stage: After selecting a suitable use position, fully open the first support base 1 and the second support base 2 so that they are in a stable placement state. At this time, pass the countersunk bolt 9 through the corresponding through holes of the support bracket 8, the support bracket 3, the first support base 1 and the second support base 2, and then use the locking nut 10 to fix and lock them. By tightening the locking nut 10, the various components are tightly connected to form a stable base structure to ensure that the entire device will not shake or move during subsequent operations.

[0049] 2. Clamping and adjustment stage: First, measure the thickness of the tenon of the wing to be sprayed, and pre-adjust the width between the upper and lower clamps according to the measurement results. By turning the handle of the movable bolt 4, the distance between the upper clamp 5 and the lower clamp 6 is slightly larger than the thickness of the wing tenon. Then place the middle part of the wing tenon between the upper and lower clamps, and turn the handle of the movable bolt 4 again to gradually approach and clamp the upper and lower clamps to clamp the wing tenon. In this process, the spring (compression) 12 and the spring (elongation) 13 will adaptively adjust their expansion and contraction according to the change in the thickness of the wing surface, provide a stable clamping force, and prevent the wing surface from being damaged during the clamping process. At the same time, the rubber gaskets on the inner side of the upper and lower clamps are in close contact with the wing surface, protecting the surface quality of the wing surface and increasing friction to ensure that the wing surface does not slide.

[0050] 3. Angle adjustment stage: After the wing surface is clamped, the upper clamp 5 is rotated relative to the support bracket 8 by adjusting the handle of the rotating bolt 7, thereby driving the wing to be vertical or reach the required spraying angle. Since the rotating bolt 7 adopts a special bearing structure or friction reduction design, the angle adjustment process is flexible, smooth and accurate. After reaching the appropriate angle, the rotating bolt 7 is locked again, such as by tightening the matching nut or using a stop device, to ensure that the wing maintains a stable angle during the spraying process and will not be offset due to external force or vibration.

[0051] 4. Operation stage: After the wing blade is clamped and the angle is adjusted, the wing blade can be sprayed, polished, cleaned, protected, maintained and other related operations. Since the clamping device has a stable structure and is easy to operate, it can ensure the position accuracy and stability of the wing blade during the operation, thereby improving the quality of the operation. In addition, the device can adjust the angle of the clamp and the position of use at will. It can be placed on the ground or used on a workbench, which increases the convenience of the operation, reduces the workload of repeatedly turning over and lifting the wing surface, and reduces the labor intensity of the operator. In actual production applications, the device can adapt to wing blade operations of different models, different thicknesses and different needs. It can also be used for clamping and fixing other objects of similar shapes. It has wide applicability and practicality.

[0052] The working process of the present invention is as follows:

[0053] Select the use position, open the support base completely, and tighten the countersunk bolts and nuts to stabilize the overall structure. Measure the thickness of the tenon of the wing to be sprayed, pre-adjust the width between the upper and lower clamps, place the middle part of the tenon of the wing between the upper and lower clamps, and lock the upper and lower clamps by turning the handle of the moving bolt. Adjust the handle of the rotating bolt to make the wing vertical. At this time, perform a secondary locking to ensure that the wing is clamped and tightened. Then the wing can be operated as needed.

[0054] In actual production applications, the present invention can adapt to wing operations of different models, different thicknesses and different requirements, including but not limited to spraying, grinding, cleaning, protection, and maintenance, and can also be used for clamping and fixing other objects of similar shapes. The clamping device of the present invention has a simple structure and low processing and manufacturing cost. Multiple can be manufactured at the same time to achieve simultaneous spraying of single-shot four-sided winglets, ensuring that all coatings are in the same ratio in the same environment at the same time, thereby improving the spraying quality. The present invention can arbitrarily adjust the angle of the clamp and the position of use. It can be placed on the ground or used on a workbench, which increases the convenience of the operation, reduces the workload of repeatedly turning over and lifting the wing surface, and reduces the labor intensity of the operator.

[0055] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the present invention. After reading the above content, it will be apparent to those skilled in the art that various modifications and substitutions of the present invention will occur. Therefore, the protection scope of the present invention should be limited by the appended claims.

[0056] The contents not described in detail in the specification of the present invention belong to the common knowledge of the professionals in this field.

Claims

1. A portable adjustable clamping device for spraying aerodynamic airfoils, characterized in that: include: Bases, fixtures and connectors; of which, The base comprises a supporting base, a support bracket (3), and a supporting bracket (8); the supporting bracket (8) is fixedly connected to the support bracket (3); through holes are arranged at the centers of the supporting base, the support bracket (3), and the supporting bracket (8); and a connecting piece passes through the through hole to realize the connection between the supporting base, the support bracket (3), and the supporting bracket (8); The clamp comprises a movable bolt (4), an upper clamp (5), a lower clamp (6) and a rotating bolt (7); a support bracket (8) is connected to the upper clamp (5) by means of a rotating bolt (7); the upper clamp (5) and the lower clamp (6) are connected by means of a movable bolt (4); and the upper clamp (5) and the lower clamp (6) are locked by rotating the movable bolt (4) to achieve clamping of the workpiece to be processed.

2. A portable adjustable clamping device for aerodynamic airfoil spraying according to claim 1, characterized in that: The support base comprises a first support base (1) and a second support base (2); the first support base (1) and the second support base (2) are coaxial; a first groove is provided on the upper surface of the middle portion of the first support base (1); A second groove is provided on the lower surface of the middle part of the second support base (2); the first groove matches the second groove to achieve the fit between the first support base (1) and the second support base (2).

3. A portable adjustable clamping device for aerodynamic airfoil spraying according to claim 1, characterized in that: The first support base (1) and the second support base (2) are arc-shaped structures, and the first support base (1) and the second support base (2) are detachably fixed in an intersecting manner along the center line of the arc-shaped structure.

4. A portable adjustable clamping device for aerodynamic wing spraying according to claim 1, characterized in that: The movable bolt (4) and the rotating bolt (7) are both provided with rotating handles.

5. A portable adjustable clamping device for aerodynamic airfoil spraying according to claim 1, characterized in that: The inner sides of the upper clamp (5) and the lower clamp (6) are both pasted with clamp rubber gaskets (11).

6. A portable adjustable clamping device for aerodynamic airfoil spraying according to claim 2, characterized in that: The clamp also includes a first spring (12), a second spring (13) and a movable bolt nut; wherein the first spring (12), the second spring (13) and the movable bolt nut are all installed on the movable bolt (4); the first spring (12) is located between the upper clamp (5) and the lower clamp (6), and the second spring (13) is located between the lower clamp (6) and the movable bolt nut.

7. A portable adjustable clamping device for aerodynamic airfoil spraying according to claim 1, characterized in that: The first support base (1) and the second support base (2) form a triangular structure with the contact surface; the distance between the two end points of the first support base (1) and the second support base (2) is 200 to 400 mm.

8. A portable adjustable clamping device for aerodynamic airfoil spraying according to claim 1, characterized in that: The base, clamps and connectors are all made of cold-rolled steel and can bear a load of more than 30kg.

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