CN112774903B

CN112774903B - Clamp and spraying device

Info

Publication number: CN112774903B
Application number: CN202011628274.7A
Authority: CN
Inventors: 谢迎春; 黄仁忠; 张科杰; 曾良; 王高民; 孙文; 兰海明; 王岳亮; 邓畅光
Original assignee: Institute of New Materials of Guangdong Academy of Sciences
Current assignee: Institute of New Materials of Guangdong Academy of Sciences
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-11-30
Anticipated expiration: 2040-12-31
Also published as: CN112774903A

Abstract

The invention provides a clamp and a spraying device, and relates to the technical field of clamps. The clamp comprises a fixed arm, a movable arm, an elastic piece, a first pressing claw, a second pressing claw and the like, pressure is applied to a pressing end of the movable arm, the pressing end of the movable arm is close to the fixed arm, the clamping end of the movable arm is far away from the clamping end of the fixed arm, the elastic piece extends, a flat plate waits for a clamped object to be clamped on the first pressing claw and the second pressing claw, and clamping force is applied by the elastic piece to enable the clamped object to be stably clamped between the first pressing claw and the second pressing claw. The clamp has the advantages of convenient operation, high clamping efficiency and good clamping stability, and is suitable for cold (hot) spraying of a flat plate full plane. The spraying device comprises the clamp, can conveniently and quickly clamp the flat plate stably, is convenient to operate, and is suitable for popularization and application.

Description

Clamp and spraying device

Technical Field

The invention relates to the technical field of clamps, in particular to a clamp and a spraying device.

Background

In the cold (hot) spraying industry, the common problem of the cold (hot) spraying industry is that the flat plate needs to be sprayed in a full plane, and how to quickly and firmly clamp the flat plate. The flat plate is divided into two types of magnetic conduction and non-magnetic conduction, and the flat plate with magnetic conduction performance generally adopts back strong magnetic adsorption or adopts a groove clamp. Specifically, the flat plate is placed in the groove, the lower edge of the flat plate is attached to the lower edge of the groove, threads are tapped on the upper edge of the groove, and the upper edge of the flat plate is pressed by a screw to play a role in fixing the flat plate. The flat plate of non-magnetic conduction then can adopt above-mentioned recess anchor clamps to fix, and is fixed convenient and fast with strong magnetic adsorption to the flat plate of magnetic conduction. The flat plate which is not magnetic conductive is fixed by the groove clamp, so that the clamping is relatively complex, the flat plate cannot be well attached to the bottom surface of the groove due to the action of torque when the screw is fastened, the adjustment is required to be carried out back and forth, and the clamping efficiency is low.

Therefore, the clamp is designed and manufactured to be suitable for non-magnetic and magnetic conduction flat plate full-plane cold (hot) spraying, and has urgent need in the production process of the cold (hot) spraying industry.

Disclosure of Invention

The invention aims to provide a clamp which is used for clamping a flat plate waiting to be clamped more firmly and quickly and is simple to operate.

Another object of the present invention is to provide a spraying apparatus, which can conveniently and rapidly clamp a plate to be sprayed, and is convenient to operate, and suitable for cold (hot) spraying in all planes.

The invention is realized by the following steps:

the invention provides a clamp, which comprises a fixed arm, a movable arm and an elastic piece, wherein the fixed arm is provided with a clamping end, a fixed end opposite to the clamping end and a first rotating connection point positioned between the clamping end and the fixed end;

one end of the elastic piece is connected between a first rotating connection point and a clamping end of the fixed arm, the other end of the elastic piece is connected between a second rotating connection point and a clamping end of the movable arm, the clamping end of the fixed arm is connected with a first pressing claw used for clamping an object to be clamped, and the clamping end of the movable arm is connected with a second pressing claw matched with the first pressing claw.

Further, in a preferred embodiment of the present invention, the present invention further includes an opening adjusting plate, the first pressing claw is fixed to a plate surface of one end of the opening adjusting plate, the opening adjusting plate is provided with a connecting groove for adjusting the connecting point, and the clamping end of the fixing arm is provided with a first connecting hole matched with the connecting groove, so that the plate surface of the other end of the opening adjusting plate is detachably connected to the clamping end of the fixing arm.

Further, in a preferred embodiment of the present invention, the present invention further includes a connecting block, the connecting block is fixed to the clamping end of the fixing arm, and a second connecting hole matched with the connecting groove of the opening adjusting plate is disposed on the connecting block, so that the connecting member sequentially passes through the connecting groove, the second connecting hole and the first connecting hole to lock the position of the opening adjusting plate.

Further, in a preferred embodiment of the present invention, the opening adjusting plate is provided with a connecting protrusion, the connecting block is provided with a connecting groove matching with the connecting protrusion, the connecting groove is located on the connecting protrusion and penetrates through the plate surface of the opening adjusting plate, and the second connecting hole on the connecting block is located in the connecting groove.

Further, in a preferred embodiment of the present invention, the first pressing claw is provided with a first groove for clamping the flat plate, and the second pressing claw is provided with a second groove matched with the first groove.

Further, in a preferred embodiment of the present invention, the first pressing claw is provided with a first protection sleeve matching with the shape of the first pressing claw, and the second pressing claw is provided with a second protection sleeve matching with the shape of the second pressing claw.

Further, in a preferred embodiment of the present invention, the fixing device further includes a fixing base for fixing a position, and the fixing base is connected to the fixing end of the fixing arm.

Further, in a preferred embodiment of the present invention, the fixing base is provided with a fixing hole for connecting with other devices.

Further, in a preferred embodiment of the present invention, a protection plate disposed around the elastic member is attached to the fixing arm.

The invention also provides a spraying device which comprises the clamp.

The invention has the beneficial effects that: according to the clamp obtained through the design, the pressure is applied to the pressure applying end of the movable arm, so that the pressure applying end of the movable arm is close to the fixed arm, the clamping end of the movable arm is far away from the clamping end of the fixed arm, the elastic piece extends, a flat plate object to be clamped is clamped on the first pressing claw and the second pressing claw, and the elastic piece is used for applying clamping force to enable the object to be clamped to be stably clamped between the first pressing claw and the second pressing claw. The clamp has the advantages of convenient operation, high clamping efficiency and good clamping stability, and is suitable for cold (hot) spraying of a flat plate full plane.

The spraying device provided by the invention comprises the clamp, can conveniently and quickly clamp the flat plate stably, is convenient to operate, and is suitable for popularization and application.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a first perspective view of a clamp according to an embodiment of the present invention;

FIG. 2 is a second perspective view of a clamp according to an embodiment of the present invention;

FIG. 3 is a schematic view of the aperture-adjusting plate of FIG. 1;

fig. 4 is a schematic view of the connection block of fig. 1.

Icon: 100-clamp; 001-hinge pin; 002-struts for extension springs; 003-strut for extension spring; 004-connecting hole; 005-connecting hole; 110-a movable arm; 111-pressure applying end; 112-a second rotational attachment site; 113-a clamping end; 120-a fixed arm; 121-fixed end; 122-first rotational ligation site; 123-a clamping end; 130-a fixed seat; 140-an elastic member; 150-opening adjusting plate; 151-connecting groove; 152-a connecting projection; 160-connecting block; 161-second connection hole; 162-connecting groove; 171-a first protective sheath; 172-a second protective sheath; 181-first pressing claw; 182-a second pressing claw; 183-first groove; 184-a second groove; 190-protective plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "thickness", "upper", "lower", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 and 2, an embodiment of the present invention provides a clamp 100, which includes a fixed arm 120, a movable arm 110, a fixed seat 130, an elastic member 140, a first pressing claw 181, and a second pressing claw 182, wherein the fixed seat 130 fixes the position of the whole clamp 100 during use, the movable arm 110 is pressed, and then the distance between the first pressing claw 181 and the second pressing claw 182 is adjusted to be suitable for the size of a plate waiting clamp, and the elastic member 140 provides a clamping force to firmly clamp the plate.

Specifically, the fixed arm 120 has a clamping end 123, a fixed end 121 opposite to the clamping end 123, and a first rotation connection point 122 between the clamping end 123 and the fixed end 121, the movable arm 110 has a clamping end 113, a pressing end 111 opposite to the clamping end 113, and a second rotation connection point 112 between the clamping end 113 and the pressing end 111, and the fixed arm 120 and the movable arm 110 are rotatably connected through the first rotation connection point 122 and the second rotation connection point 112. The specific rotation connection mode is not limited, and a hinge mode can be adopted, and a hinge pin 001 is arranged to realize flexible movement of the movable arm 110.

Further, one end of the elastic member 140 is connected between the first rotation connection point 122 and the clamping end 123 of the fixed arm 120, the other end of the elastic member 140 is connected between the second rotation connection point 112 and the clamping end 113 of the movable arm 110, the clamping end 123 of the fixed arm 120 is connected with a first pressing claw 181 for clamping an object to be clamped, and the clamping end 113 of the movable arm 110 is connected with a second pressing claw 182 which is matched with the first pressing claw 181.

It should be noted that, the clamp 100 makes the pressing end of the movable arm 110 close to the fixed arm 120 by applying pressure on the pressing end of the movable arm 110, makes the clamping end of the movable arm 110 far from the clamping end of the fixed arm 120, and makes the elastic member 140 extend to clamp the plate object to be clamped on the first pressing claw 181 and the second pressing claw 182, and makes the object to be clamped firmly clamped between the first pressing claw 181 and the second pressing claw 182 by applying clamping force by the elastic member 140. The clamp has the advantages of convenient operation, high clamping efficiency and good clamping stability, and is suitable for cold (hot) spraying of a flat plate full plane.

Specifically, the elastic member 140 may be a general extension spring, and the elastic member 140 may be screwed into the movable arm 110 through the extension spring support 002 and screwed into the fixed arm 120 through the extension spring support 003, and both ends of the extension spring may be hooked in holes of the extension spring support 002 and the extension spring support 003, respectively. After clamping the plate, the plate may be firmly clamped using an extension spring to provide a spring force.

In the preferred embodiment of the present invention, the protection plate 190 is connected to the fixing arm 120 and disposed around the elastic member 140, and the protection plate 190 may be shaped like a cylinder to surround the elastic member 140, so as to protect the elastic member during use. Specifically, the protection plate 190 is fixed to the fixing arm 120 with a low-headed hexagon socket head bolt.

Specifically, the fixing base 130 is connected to the fixed end 121 of the fixing arm 120, and as shown in the figure, the fixing arm 120 is inserted into a square hole of the fixing base 130 and locked by an inner hexagonal bolt. Preferably, the fixing base 130 is provided with a fixing hole connected with other equipment, so that the fixing base 130 can be fixed on other equipment by a fixing member such as a bolt, and the whole clamp 100 is stable in position.

Further, a first groove 183 for clamping the flat plate is arranged on the first pressing claw 181, and a second groove 184 matched with the first groove 183 is arranged on the second pressing claw 182. After the gripping ends of the stationary arm 120 and the moveable arm 110 are opened, the platform snaps into the first recess 183 and the second recess 184. The first and

second grooves

183 and 184 may be symmetrical in shape to more firmly fix the flat plate. Preferably, the first and

second grooves

183 and 184 may have inclined end surfaces, and the top surface of one end groove protrudes to more firmly hold the flat panel.

In the preferred embodiment of the present invention, the first pressing claw 181 is provided with a first protection sleeve 171 matching with the shape of the first pressing claw 181, and the second pressing claw 182 is provided with a second protection sleeve 172 matching with the shape of the second pressing claw 182. The first protective sleeve 171 and the second protective sleeve 172 can protect the two pressing claws in the spraying process, so that spraying materials are prevented from being sputtered onto the pressing claws, and the use of the pressing claws is prevented from being influenced due to the difficulty in cleaning. The first protective cover 171 and the second protective cover 172 are made of a material that can be easily cleaned after the sprayed material is sprayed, so that the first protective cover and the second protective cover can be reused after being refreshed.

In a preferred embodiment of the present invention, referring to fig. 1 and fig. 3, the clamp 100 further includes an opening adjustment plate 150, the first pressing claw 181 is fixed on a plate surface of one end of the opening adjustment plate 150, the opening adjustment plate 150 is provided with a connection groove 151 for adjusting a connection point, and the clamping end 123 of the fixing arm 120 is provided with a first connection hole matched with the connection groove 151, so that the plate surface of the other end of the opening adjustment plate 150 is detachably connected with the clamping end of the fixing arm 120. The length of the connection groove 151 is larger than the diameter of the first connection hole so that the aperture-adjusting plate 150 is fixed after passing through the connection groove 151 and the first connection hole by a fixing member such as a bolt after being moved to a proper position. When the position of the opening adjusting plate 150 needs to be adjusted again, the bolt is removed and moved to the proper connection position again, so that the distance between the first pressing claw 181 and the second pressing claw 182 is adapted to the size of the flat plate.

In a preferred embodiment of the present invention, referring to fig. 1, 3 and 4, the clamp 100 further includes a connecting block 160, the connecting block 160 is fixed to the clamping end 123 of the fixing arm 120, and a second connecting hole 161 is formed in the connecting block 160 and is matched with the connecting groove 151 of the opening adjustment plate 150, so that the connecting block passes through the connecting groove 151, the second connecting hole 161 and the first connecting hole in sequence to lock the position of the opening adjustment plate 150. Through further setting up connecting block 160, because it is fixed in on fixed arm 120 through fixed modes such as bolt itself, after the connecting piece passes connecting groove 151, second connecting hole 161 and first connecting hole back in proper order with opening regulating plate 150's position locking, can make opening regulating plate 150's position more firm, prevent further displacement from appearing, influence the spraying effect.

Specifically, the connection block 160 is fixed to the fixing arm 120 with a low head hexagon socket head cap screw and a flat washer, and the opening adjustment plate 150 is fixed to the connection block 160 with a low head hexagon socket head cap screw and a flat washer. The first pressing claw 181 is fixed to the opening adjustment plate 150 by a fastening screw, and the second pressing claw 182 is fixed to the movable arm 110 by a fastening screw.

Further, a connecting protrusion 152 is disposed on the opening adjustment plate 150, a connecting groove 162 matched with the connecting protrusion 152 is disposed on the connecting block 160, the connecting groove 151 is disposed on the connecting protrusion 152 and penetrates through the plate surface of the opening adjustment plate 150, and a second connecting hole 161 on the connecting block 160 is disposed in the connecting groove 162. The coupling protrusion 152 and the coupling groove 162 are engaged to limit the displacement of the opening adjustment plate 150.

Specifically, the opening adjusting plate 150 fixes the first pressing claw 181 through the connecting hole 005, the connecting block 160 is fixed to the clamping end 123 of the fixing arm 120 through the connecting hole 004, and other parts such as a gasket, a screw, etc. are not numbered one by one.

Specifically, the connection block 160 may be made of engineering plastic; the movable arm 110, the fixed arm 120 and the fixed seat 130 may be made of aluminum material; the opening adjusting plate 150, the first pressing claw 181, the second pressing claw 182, and the protection plate 190 may be made of steel, but are not limited thereto.

Note that the overall size range of the clamp: the length is 50-200mm, the width is 50-200mm, and the thickness is 2-15 mm. The size and the width of the clamping plate can be further expanded by increasing the length of the opening adjusting plate 150 and the widths of the first pressing claw 181 and the second pressing claw 182; the size and thickness range of the clamping plate can be further expanded by increasing the step width of the first pressing claw 181 and the second pressing claw 182; the clamping force can be increased by increasing the diameter of the elastic member 140. Based on the strength and rigidity of the clamp 100, the range of clamping the flat plate can be only moderately and infinitely enlarged as required, and the clamping is ensured to be firm so as to avoid sliding in the spraying process.

The spraying device provided by the invention comprises the clamp, and can also comprise other components for cold spraying or thermal spraying, such as a spray gun and the like, so as to form a complete spraying device.

In summary, the present invention provides a clamp, which applies pressure to a pressure applying end of a movable arm to make the pressure applying end of the movable arm close to a fixed arm, a clamping end of the movable arm is far from a clamping end of the fixed arm, an elastic member extends to clamp a flat object to be clamped on a first pressing claw and a second pressing claw, and the elastic member applies clamping force to clamp the object to be clamped between the first pressing claw and the second pressing claw. The clamp has the advantages of convenient operation, high clamping efficiency and good clamping stability, and is suitable for cold (hot) spraying of a flat plate full plane.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A clamp, comprising a fixed arm, a movable arm and an elastic element, wherein the fixed arm is provided with a clamping end, a fixed end opposite to the clamping end and a first rotating connection point between the clamping end and the fixed end, the movable arm is provided with a clamping end, a pressing end opposite to the clamping end and a second rotating connection point between the clamping end and the pressing end, and the fixed arm and the movable arm are rotatably connected through the first rotating connection point and the second rotating connection point;

one end of the elastic piece is connected between the first rotating connection point and the clamping end of the fixed arm, the other end of the elastic piece is connected between the second rotating connection point and the clamping end of the movable arm, the clamping end of the fixed arm is connected with a first pressing claw for clamping an object to be clamped, and the clamping end of the movable arm is connected with a second pressing claw matched with the first pressing claw;

the clamping end of the fixing arm is provided with a first connecting hole matched with the connecting groove, so that the other end plate surface of the opening adjusting plate is detachably connected with the clamping end of the fixing arm;

still include the connecting block, the connecting block is fixed in the fixed arm the exposed core, be provided with on the connecting block with on the opening regulating plate spread groove matched with second connecting hole to make the connecting piece pass in proper order the spread groove the second connecting hole with will behind the first connecting hole the position locking of opening regulating plate.

2. The clamp according to claim 1, wherein the opening adjustment plate is provided with a connection protrusion, the connection block is provided with a connection groove matched with the connection protrusion, the connection groove is located on the connection protrusion and penetrates through the plate surface of the opening adjustment plate, and the second connection hole on the connection block is located in the connection groove.

3. The clamp according to claim 1, wherein the first pressing claw is provided with a first groove for clamping a flat plate, and the second pressing claw is provided with a second groove matched with the first groove.

4. The clamp according to claim 3, wherein the first pressing claw is provided with a first protective sleeve matching with the shape of the first pressing claw, and the second pressing claw is provided with a second protective sleeve matching with the shape of the second pressing claw.

5. The clamp of claim 1, further comprising an anchor block for securing a position, the anchor block being attached to the fixed end of the fixed arm.

6. The clamp according to claim 5, wherein the fixing base is provided with a fixing hole for connecting with other equipment.

7. The clamp of claim 1, wherein a protective plate is attached to the securing arm and positioned around the resilient member.

8. A spray device comprising a clamp according to any one of claims 1 to 7.