CN114908313A - Get and put convenient plasma spraying and use work piece holder - Google Patents

Abstract

The invention relates to the related technical field of plasma spraying, in particular to a workpiece clamp for plasma spraying which is convenient to pick and place, comprising a fixing seat for carrying, a protective cover is provided on the upper cover of the fixing seat, and a lateral clamping component is installed on the fixing seat. The longitudinal clamping assembly includes a movable plate, a fixed pressure plate and a lifting mechanism, and the fixed pressure plate is rotatably connected to the bottom of the movable plate; the present invention clamps the workpiece in the horizontal direction through the transverse clamping assembly, and the longitudinal clamping assembly clamps the workpiece. It is clamped in the vertical direction, with good tightness and not easy to loosen. The arrangement of the first spring and the second spring can realize the clamping of workpieces of different sizes and facilitate the clamping of workpieces. At the same time, the rotatable lateral clamping assembly is used. It can realize the uniform spraying of the workpiece, and the spraying effect is better.

Description

A workpiece fixture for plasma spraying with convenient pick and place

technical field

The invention relates to the related technical field of plasma spraying, in particular to a workpiece fixture for plasma spraying which is convenient to pick and place.

Background technique

Plasma spraying refers to a technology of material surface strengthening and surface modification, which can make the substrate surface have the properties of wear resistance, corrosion resistance, high temperature oxidation resistance, electrical insulation, heat insulation, radiation protection, wear reduction and sealing. It is widely used, and when the workpiece is plasma sprayed, a corresponding workpiece fixture needs to be used to fix the sprayed fixture.

However, the commonly used workpiece fixtures for plasma spraying still have the following shortcomings:

1. The existing workpiece fixture for plasma spraying is inconvenient to fix and clamp workpieces of different sizes during actual use, and the clamping is not well tightened, which is prone to loosening, and the use scene of the fixture is limited. It is inconvenient to take the workpiece;

2. The existing workpiece fixture for plasma spraying requires a spray gun to spray around the workpiece after clamping the workpiece. The spraying effect is not uniform, and the surrounding environment is easily polluted during spraying;

3. In the existing workpiece fixture for plasma spraying, a large amount of dust and impurities are easily accumulated on the outer surface of the clamping part for a long time, and it is inconvenient to install, fix, disassemble and clean the part that clamps the workpiece.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is: in order to overcome the problems of low universality, poor clamping effect and looseness of the workpiece fixture for plasma spraying in the prior art, a workpiece for plasma spraying that is easy to pick and place is provided. Fixtures.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions: a workpiece fixture for plasma spraying that is convenient to pick and place, including a fixed seat for carrying, and a protective cover is provided on the top of the fixed seat, which can prevent the workpiece to a certain extent. In order to reduce the pollution to the surrounding environment, a transverse clamping component and a longitudinal clamping component are installed on the fixed seat;

A U-shaped connecting plate is fixed on the side wall of the protective cover, and a plurality of connecting grooves with limiting function are spaced apart from the middle part of the connecting plate;

The lateral clamping assembly is rotatably connected with the fixed seat, and the lateral clamping assembly includes a support plate on which the workpiece is placed. Several vertical plates are fixed on the support plate, and the plurality of vertical plates are located at the edge of the support plate and can be left behind. There is enough space to accommodate larger size workpieces. Each vertical plate is slidably connected with a hollow fixed clamp block. Several fixed clamp blocks can clamp the workpiece more stably. A first spring is installed inside the fixed clamp block. , one end of the spring is in contact with the inner wall of the end of the fixed clamping block close to the workpiece, and the other end is in contact with the vertical plate, and several fixed clamping blocks are enclosed into a space for the workpiece to be placed to clamp the workpiece; first pull the fixed clamping block outwards When the first spring is compressed and deformed, the workpiece is then placed on the support plate, and then the fixed clamping block is released, the first spring is reset, and the fixed clamping block clamps the workpiece and limits the workpiece and can realize the lateral direction of workpieces of different sizes. clamp;

The longitudinal clamping assembly includes a movable plate, a fixed pressure plate and a lifting mechanism, the fixed pressure plate is rotatably connected to the bottom of the movable plate, the lifting mechanism drives the fixed pressure plate to move up and down, and the fixed pressure plate and the support plate longitudinally clamp the workpiece; The mechanism includes a movable block fixedly connected with the movable plate, the movable block is provided with a partition, and the partition divides the movable block into two cavities, wherein one cavity is slidably connected with the connecting plate, and the other cavity is fixed with a A horizontal installation column, a second spring is sleeved on the installation column and a U-shaped limit block is slidably connected, the limit block is inserted into the connecting groove, and one end of the second spring is in contact with the inner wall of the end of the movable block away from the protective cover , the other end is in contact with the limit block; when the workpiece is laterally clamped, the limit block is pulled outward to disengage it from the connecting groove, so that relative sliding between the movable block and the connecting plate can occur, and the second spring is compressed, causing Deformation, move the movable block up and down to drive the fixed pressure plate to rise and fall to realize the longitudinal clamping of the workpiece, and then release the limit block, the second spring resets, and the limit block is inserted into the corresponding connecting groove to fix the movable block, thereby playing a role in the fixed pressure plate. The effect of fixing is that the lifting mechanism can drive the fixed pressure plate to limit the workpieces of different lengths and sizes, which has high practicability.

When the horizontal and vertical clamping are completed, the driving mechanism drives the horizontal clamping assembly to rotate, thereby driving the workpiece on it to rotate, and the fixed pressure plate pressed on the workpiece rotates accordingly. The plate is in a static state to ensure the stability of the fixed platen. When the workpiece rotates, just move the spray gun up and down to uniformly spray the workpiece.

The above technical solution clamps the workpiece in the horizontal direction through the transverse clamping assembly, and clamps the workpiece in the vertical direction by the longitudinal clamping assembly, which has good tightness and is not easy to loosen. The arrangement of the first spring and the second spring can be adjusted. It can realize the clamping of workpieces of different sizes and facilitate the clamping of the workpieces. At the same time, the rotatable lateral clamping components can be used to achieve uniform spraying of the workpieces, and the spraying effect is better.

Further, there are several transverse clamping assemblies, movable plates and fixed pressing plates, and the three are in one-to-one correspondence, so that simultaneous spraying of several workpieces can be realized to improve work efficiency.

Further, several movable plates are connected by a cross bar, there are two of the connecting plates and the lifting mechanism, and the two are in one-to-one correspondence, and the two connecting plates are symmetrically distributed on the two side walls of the protective cover. The two ends are respectively fixedly connected with the movable blocks at both ends, and when the movable blocks drive the cross bar to move up and down, several movable plates on it move synchronously, thereby improving the clamping efficiency.

Further, two symmetrically distributed auxiliary sleeves are fixed at one end of the fixed clamping block away from the workpiece, each auxiliary sleeve is provided with a connecting column inside, each connecting column is fixed with a connecting sleeve, and the two connecting columns are One of the connecting columns connects the fixed clamping block and the vertical plate, and the auxiliary sleeve is located between the vertical plate and the connecting sleeve, and the other connecting column connects the clamping block and the supporting plate, and the auxiliary sleeve is located between the supporting plate and the connecting sleeve; when clamping the workpiece, First, rotate the two connecting sleeves to separate the two connecting columns from the vertical plate and the support plate, then pull the fixed clamp outward to place the workpiece on the support plate, and then release the fixed clamp to make it in the first spring. The workpiece is clamped under the action, and finally the two connecting sleeves are rotated to fix the two connecting columns with the vertical plate and the supporting plate respectively, so as to prevent loosening between the fixed clamping block and the vertical plate, so as to achieve a better clamping effect on the workpiece. .

Further, a number of vertical fixing rods are fixed inside the protective cover, the fixing rods pass through the movable plate and are slidably connected with the movable plate, and the vertical fixing rods can play a guiding role, so that the movable plate drives the fixed pressure plate in the vertical direction movement to clamp the workpiece.

Further, a T-shaped fixing plate is fixed at the bottom of each supporting plate through a fixing column, a fixing sleeve is fixed on the fixing column and an auxiliary plate is slidably connected, the auxiliary plate is located between the fixing sleeve and the fixing plate, and the two auxiliary plates are connected by connecting rings. After spraying, rotate the fixing sleeve to disengage the fixing plate from the supporting plate, so that the supporting plate can be detached, which is convenient for disassembly and cleaning of the supporting plate, and prevents a large amount of dust and impurities from adhering to the outer surface of the supporting plate after long-term use.

Further, each fixed plate is connected with a pulley, several pulleys are connected by connecting belts, the output end of the driving mechanism is drivingly connected with one of the pulleys, the driving mechanism is a driving mechanism, and the motor drives the pulley connected with it to rotate, The pulley drives the other pulleys to rotate synchronously by connecting the belt, thereby driving a plurality of transverse clamping assemblies to rotate synchronously to realize synchronous spraying of multiple workpieces thereon, thereby improving work efficiency.

Further, a pull ring is installed at one end of the fixed clamping block away from the workpiece, and the fixed clamping block can be easily pulled through the pull ring.

The beneficial effects of the present invention are: the horizontal direction of the workpiece is clamped by the transverse clamping assembly, and the vertical direction of the workpiece is clamped by the longitudinal clamping assembly, the tightness is good, and the first spring is not easy to loosen. The arrangement of the second spring can realize the clamping of workpieces of different sizes and facilitate the clamping of the workpieces, and at the same time, the use of the rotatable lateral clamping components can realize the uniform spraying of the workpieces, and the spraying effect is good.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the front view of the present invention;

FIG. 2 is a schematic structural diagram of the connection between the fixing seat, the protective cover and the connecting plate of the present invention;

3 is a schematic structural diagram of the connection between the supporting plate, the fixing plate and the lateral clamping assembly of the present invention;

Fig. 4 is the top view of the connection between the support plate, the vertical plate and the fixed clamping block of the present invention;

Fig. 5 is the enlarged schematic diagram of the structure at place A in Fig. 1 of the present invention;

6 is a schematic structural diagram of the connection between the fixed clamping block, the auxiliary sleeve and the connecting sleeve according to the present invention;

FIG. 7 is a schematic cross-sectional view of the connection between the fixing plate and the connecting ring of the present invention;

Figure 8 is a schematic cross-sectional view of the connection between the movable plate and the fixed pressing plate of the present invention;

FIG. 9 is a schematic cross-sectional view of the connection between the movable block and the limit block according to the present invention.

In the picture:

1. Fixed seat; 2. Bracket; 3. Drive mechanism; 4. Protective cover; 5. Connecting plate; 6. Connecting groove; 7. Supporting plate; 8. Fixed plate; 9. Pulley; 10. Connecting belt; 11. Fixing column; 12. Auxiliary plate; 13. Connecting ring; 14. Fixing sleeve; 15. Transverse clamping assembly; 16. Fixing clamp block; 17. First spring; 18. Pull ring; 19. Auxiliary sleeve; Column; 21, connecting sleeve; 22, vertical plate; 23, fixed rod; 24, movable plate; 25, fixed pressure plate; 26, cross bar; 27, movable block; 28, installation column; 29, second spring; 30, limit block.

Detailed ways

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, and only illustrate the basic structure of the present invention in a schematic way, so they only show the structures related to the present invention, and the directions and references (eg, up, down, left, right, etc.) may only be Used to aid in the description of features in the drawings. Therefore, the following detailed description is not to be taken in a limiting sense, and the scope of the claimed subject matter is defined solely by the appended claims and their equivalents.

Example 1:

As shown in FIGS. 1 to 9 , the present invention is a workpiece fixture for plasma spraying that is convenient to pick and place, including a fixing base 1 for carrying, and a protective cover 4 is provided above the fixing base 1, which can be used to a certain extent. In order to prevent and reduce the pollution to the surrounding environment, the fixing base 1 is provided with a transverse clamping assembly 15 and a longitudinal clamping assembly;

A U-shaped connecting plate 5 is fixed on the side wall of the protective cover 4, and a plurality of connecting grooves 6 with limiting function are spaced in the middle part of the connecting plate 5;

The lateral clamping assembly 15 is rotatably connected with the fixing base 1. The lateral clamping assembly 15 includes a support plate 7, and the workpiece is placed on the support plate 7. A plurality of vertical plates 22 are fixed on the support plate 7. There is enough space at the edge of the support plate 7 to accommodate larger-sized workpieces. Each vertical plate 22 is slidably connected with a hollow fixed clamp block 16, and several fixed clamp blocks 16 can more stably clamp the workpiece. , a first spring 17 is installed inside the fixed clamping block 16. One end of the spring is in contact with the inner wall of the end of the fixed clamping block 16 close to the workpiece, and the other end is in contact with the vertical plate 22. The fixed clamping block 16 is far away from the workpiece. A pull ring 18 is installed at one end, and the fixed clamp block 16 can be easily pulled through the pull ring 18; when the fixed clamp block 16 is first pulled outward, the first spring 17 is compressed and deformed, and then the workpiece can be placed on the support plate 7, and then Loosen the fixed clamp block 16, the first spring 17 is reset, and the fixed clamp block 16 clamps the workpiece in position;

The longitudinal clamping assembly includes a movable plate 24, a fixed pressure plate 25 and a lifting mechanism. The fixed pressure plate 25 is rotatably connected to the bottom of the movable plate 24. The lifting mechanism drives the fixed pressure plate 25 to move up and down. Longitudinal clamping; the lifting mechanism includes a movable block 27 that is fixedly connected to the movable plate 24, a partition is arranged inside the movable block 27, and the partition divides the movable block 27 into two cavities, one of which is connected to the The plate 5 is slidably connected, and a horizontal mounting post 28 is fixed inside the other cavity. The mounting post 28 is sleeved with a second spring 29 and is slidably connected with a U-shaped limit block 30, which is inserted into the connection slot 6, One end of the second spring 29 is in contact with the inner wall of the end of the movable block 27 away from the protective cover 4, and the other end is in contact with the limit block 30; when the workpiece is laterally clamped, the limit block 30 is pulled outward to connect it with The groove 6 is disengaged so that the movable block 27 and the connecting plate 5 can slide relative to each other. At the same time, the second spring 29 is compressed and deformed. The movable block 27 is moved up and down to drive the fixed pressure plate 25 to rise and fall to realize the longitudinal clamping of the workpiece and press the workpiece. After tightening, loosen the limit block 30, the second spring 29 is reset, and the limit block 30 is inserted into the corresponding connecting slot 6 to fix the movable block 27, thereby having a fixed effect on the fixed pressure plate 25, and the lifting mechanism can drive the fixed pressure plate 25 It has high practicability to limit workpieces of different lengths and sizes.

After the horizontal and vertical clamping are completed, the driving mechanism 3 drives the lateral clamping assembly 15 to rotate, thereby driving the workpiece on it to rotate, and the fixed pressure plate 25 pressed on the workpiece rotates accordingly. The movable plate 24 is in a static state to ensure the stability of the fixed pressure plate 25. When the workpiece rotates, it is only necessary to move the spray gun up and down to achieve uniform spraying on the workpiece.

There are several transverse clamping assemblies 15 , movable plates 24 and fixed pressing plates 25 , and the three are in one-to-one correspondence, so that simultaneous spraying of several workpieces can be achieved to improve work efficiency.

A plurality of movable plates 24 are connected by a cross bar 26, there are two connecting plates 5 and the lifting mechanism, and the two are in one-to-one correspondence, and the two connecting plates 5 are symmetrically distributed on the two side walls of the protective cover 4, so Both ends of the crossbar 26 are fixedly connected to the movable blocks 27 at both ends respectively. When the movable block 27 drives the crossbar 26 to move up and down, several movable plates 24 on it move synchronously, thereby improving the clamping efficiency.

Two symmetrically distributed auxiliary sleeves 19 are fixed at one end of the fixed clamping block 16 away from the workpiece, each auxiliary sleeve 19 is provided with a connecting column 20, and each connecting column 20 is fixed with a connecting sleeve 21. One of the connecting columns 20 of the columns 20 connects the fixed clamping block 16 and the vertical plate 22 and the auxiliary sleeve 19 is located between the vertical plate 22 and the connecting sleeve 21 , and the other connecting column 20 connects the clamping block and the supporting plate 7 and the auxiliary sleeve 19 is located between the vertical plate 22 and the connecting sleeve 21 . Between the support plate 7 and the connecting sleeve 21; when clamping the workpiece, first rotate the two connecting sleeves 21 to separate the two connecting columns 20 from the vertical plate 22 and the support plate 7 respectively, and then pull the fixed clamp block 16 outward to remove the The workpiece is placed on the support plate 7, and then the fixed clamping block 16 is released to clamp the workpiece under the action of the first spring 17, and finally the two connecting sleeves 21 are rotated so that the two connecting columns 20 are respectively on the vertical plate 22 and the workpiece. The support plate 7 is fixed to prevent loosening between the fixed clamping block 16 and the vertical plate 22, so as to achieve a better clamping effect on the workpiece.

Several vertical fixing rods 23 are fixed inside the protective cover 4 . The fixing rods 23 pass through the movable plate 24 and are slidably connected with the movable plate 24 . The vertical fixing rods 23 can play a guiding role, so that the movable plate 24 drives the fixed pressure plate. 25 moves in the vertical direction to clamp the workpiece.

A T-shaped fixing plate 8 is fixed on the bottom of each support plate 7 through a fixing column 11 , and a fixing sleeve 14 is fixed on the fixing column 11 and is slidably connected with an auxiliary plate 12 , and the auxiliary plate 12 is located between the fixing sleeve 14 and the fixing plate 8 . In between, the two auxiliary boards 12 are connected by a connecting ring 13 . After spraying, the fixing sleeve 14 is rotated to disengage the fixing plate 8 from the supporting plate 7, thereby realizing the disassembly of the supporting plate 7, facilitating the disassembly and cleaning of the supporting plate 7, and preventing the outer surface of the supporting plate 7 from being used for a long time. Lots of dust and impurities.

Each fixing plate 8 is connected with a pulley 9, a plurality of pulleys 9 are connected by a connecting belt 10, the output end of the driving mechanism 3 is drivingly connected with one of the pulleys 9, the driving mechanism 3 is a deceleration motor, and the motor is fixed by the bracket 2 On the fixed base 1, the motor drives the pulley 9 connected to it to rotate, and the pulley 9 drives the other pulleys 9 to rotate synchronously through the connecting belt 10, thereby driving a plurality of transverse clamping assemblies 15 to rotate synchronously to realize the synchronization of multiple workpieces thereon. Spraying to improve work efficiency.

The working principle of the present invention and the use flow:

Lateral clamping: first pull the fixed clamp block 16 outward, the first spring 17 is compressed and deformed, then the workpiece is placed on the support plate 7, and then the fixed clamp block 16 is released, the first spring 17 is reset, and the fixed clamp block 16 Clamp the workpiece to the limit;

Longitudinal clamping: After the workpiece is clamped laterally, pull the stop block 30 outward to disengage it from the connecting groove 6 so that the movable block 27 and the connecting plate 5 can slide relative to each other, and at the same time the second spring 29 is compressed, resulting in Deformation, move the movable block 27 up and down to drive the fixed pressure plate 25 up and down to realize the longitudinal clamping of the workpiece, and then release the limit block 30 , and the limit block 30 is inserted into the corresponding connecting groove 6 .

Rotation: After the horizontal and vertical clamping are completed, the driving mechanism 3 drives the horizontal clamping assembly 15 to rotate, thereby driving the workpiece on it to rotate, and the fixed pressure plate 25 pressed on the workpiece rotates accordingly to ensure the clamping effect. Moving the spray gun can achieve uniform spraying on the workpiece.

The above ideal embodiment according to the present invention is enlightenment, and through the above description, relevant personnel can make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the contents in the specification, and the technical scope must be determined according to the scope of the claims.

Claims (8)

1. The utility model provides a get and put convenient work piece holder for plasma spraying which characterized in that: the device comprises a fixed seat (1) for bearing, wherein a protective cover (4) is covered above the fixed seat (1), and a transverse clamping assembly (15) and a longitudinal clamping assembly are arranged on the fixed seat (1);

a connecting plate (5) is fixed on the side wall of the protective cover (4), and a plurality of connecting grooves (6) with limiting function are formed in the middle of the connecting plate (5) at intervals;

the transverse clamping assembly (15) is rotatably connected with the fixing seat (1), the transverse clamping assembly (15) comprises a supporting plate (7), a plurality of vertical plates (22) are fixed on the supporting plate (7), each vertical plate (22) is connected with a hollow fixed clamping block (16) in a sliding mode, a first spring (17) is installed inside each fixed clamping block (16), one end of each spring abuts against the inner wall of one end, close to a workpiece, of each fixed clamping block (16), and the other end of each spring abuts against the corresponding vertical plate (22);

vertical centre gripping subassembly includes fly leaf (24), holding plate (25) and elevating system, holding plate (25) rotate to be connected in fly leaf (24) bottom, elevating system include with fly leaf (24) fixed connection's movable block (27), movable block (27) sliding connection is on connecting plate (5), and movable block (27) inside is fixed with horizontal installation post (28), and the cover is equipped with second spring (29) and sliding connection has U-shaped stopper (30) on erection column (28), stopper (30) insert spread groove (6), the inner wall of the one end of protection casing (4) is kept away from with movable block (27) to the one end of second spring (29) offsets, and the other end offsets with stopper (30).

2. The workpiece clamp for plasma spraying, which is convenient to take and place, according to claim 1, is characterized in that: the transverse clamping assembly (15), the movable plate (24) and the fixed pressing plate (25) are all provided with a plurality of parts which are in one-to-one correspondence.

3. The workpiece clamp for plasma spraying, which is convenient to take and place, according to claim 2, is characterized in that: a plurality of fly leafs (24) are connected through a horizontal pole (26), connecting plate (5) and elevating system all have two and both one-to-one, and two connecting plate (5) symmetric distribution are on two lateral walls of protection casing (4), horizontal pole (26) both ends respectively with movable block (27) fixed connection at both ends.

4. The workpiece clamp for plasma spraying, which is convenient to take and place, according to claim 1, is characterized in that: the one end that work piece was kept away from in fixed clamp splice (16) is fixed with two symmetric distribution's auxiliary sleeve (19), every auxiliary sleeve (19) inside all is equipped with spliced pole (20), all be fixed with adapter sleeve (21) on every spliced pole (20), one of them spliced pole (20) in two spliced poles (20) is connected fixed clamp splice (16) and riser (22) and auxiliary sleeve (19) and is located between riser (22) and adapter sleeve (21), another spliced pole (20) is connected fixed clamp splice (16) and backup pad (7) and auxiliary sleeve (19) and is located between backup pad (7) and adapter sleeve (21).

5. The workpiece clamp for plasma spraying, which is convenient to take and place, according to claim 2, is characterized in that: a plurality of vertical fixing rods (23) are fixed inside the protective cover (4), and the fixing rods (23) penetrate through the movable plate (24) and are connected with the movable plate (24) in a sliding mode.

6. The workpiece clamp for plasma spraying, which is convenient to take and place, according to claim 2, is characterized in that: a T-shaped fixing plate (8) is fixed at the bottom of each supporting plate (7) through a fixing column (11), a fixing sleeve (14) is fixed on each fixing column (11) and is connected with an auxiliary plate (12) in a sliding mode, the auxiliary plate (12) is located between the fixing sleeve (14) and the fixing plate (8), and the two auxiliary plates (12) are connected through a connecting ring (13).

7. The workpiece clamp for plasma spraying convenient to pick and place as claimed in claim 6, wherein: each fixing plate (8) is connected with a belt pulley (9), a plurality of belt pulleys (9) are connected through a connecting belt (10), and the output end of the driving mechanism (3) is in transmission connection with one of the belt pulleys (9).

8. The workpiece clamp for plasma spraying, which is convenient to take and place, according to claim 1, is characterized in that: and one end of each fixed clamping block (16) far away from the workpiece is provided with a pull ring (18).

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