CN211601888U - Clamping mechanism and air-float slide seat comprising same - Google Patents
Clamping mechanism and air-float slide seat comprising same Download PDFInfo
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- CN211601888U CN211601888U CN202020446765.9U CN202020446765U CN211601888U CN 211601888 U CN211601888 U CN 211601888U CN 202020446765 U CN202020446765 U CN 202020446765U CN 211601888 U CN211601888 U CN 211601888U
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Abstract
The utility model provides a clamping mechanism for preventing after the gas break vacuum adsorption slider breaks away from spigot surface, this clamping mechanism includes forward die clamping cylinder (9) and side direction die clamping cylinder (3). The air-floating slide seat comprises the clamping mechanism for preventing the vacuum adsorption slide block from being separated from the guide surface after air cut, and further comprises an extension rod (4), a measuring head (5), a measuring head clamping rod (6), a forward air-floating slide block (7), a right balance block (8) and a left air-floating slide block (10). The utility model is provided with a clamping cylinder on the opposite surface of each vacuum adsorption slide block; and communicating the positive pressure air cavity of the clamping cylinder with the positive pressure air circuit of the vacuum adsorption slide block. The structure is simple; the volume is small; the condition that the air-floating slide block is separated from the marble guide surface after air is cut off can be overcome; after the machine is started and ventilated, the air-floating slide block can be automatically adsorbed on the marble guide surface.
Description
Technical Field
The utility model relates to an air supporting formula straightness measuring apparatu that hangs down especially relates to a mechanism that is used for preventing that vacuum adsorption slider breaks away from the spigot surface behind the disconnected gas.
Background
The air-floating verticality measuring instrument uses the vacuum adsorption principle to realize precise guiding and measure. The positive air-floating slide block and the lateral air-floating slide block on the air-floating slide seat are vacuum adsorption slide blocks, positive pressure and negative pressure exist on the guide surfaces of the air-floating slide block and the lateral air-floating slide block, and when the positive pressure and the negative pressure reach a certain balance state, a stable air film can be formed between the guide surface of the air-floating slide block and the guide surface of the marble, so that the air-floating slide block is not contacted with or separated from the guide surface of the marble. The air-floating slide seat can move up and down in the vertical direction along the marble guide surface under the traction of the traction rope, so that the measuring head is driven to move up and down to realize the measurement of the precision of the measured vertical surface.
When the air path is cut off, the vacuum adsorption slide block loses adsorption force, and the traction point of the traction rope deviates from the gravity center position of the air-float slide seat, so that the moment M deflects in the positive directionIs justAnd a lateral yawing moment MSide wallUnder the action of the air-bearing slide seat, the air-bearing slide seat can lose balance, so that the forward and side air-bearing slide blocks can be separated from marble guide surfaces. This has two undesirable consequences:
dirt such as dust enters a gap between the air floatation sliding block and the marble guide surface to pollute the guide surface;
when the machine is restarted, the gap between the air-floating slide block guide surface and the marble guide surface is large, so that the air-floating slide block cannot be adsorbed onto the marble guide surface by the vacuum adsorption force, and the vacuum adsorption slide block cannot normally work.
Before starting up at every turn under this kind of condition operating personnel all must earlier air supporting slider spigot surface and marble spigot surface clean up, need push away the air supporting slide toward the marble spigot surface with the hand after ventilating moreover and just can let the air supporting slide adsorb on the marble spigot surface, the air supporting slider just can normally work.
The prior art scheme has the following defects:
when the air path is cut off, the vacuum adsorption slide block is separated from the marble guide surface due to the loss of adsorption force, so that dirt such as dust enters a gap between the air floatation slide block and the marble guide surface to pollute the guide surface;
when the machine is started, the gap between the air-floating slide block guide surface and the marble guide surface is large, so that the air-floating slide block cannot be adsorbed onto the marble guide surface by the vacuum adsorption force, and the vacuum adsorption slide block cannot normally work.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is:
after the air path is cut off, the vacuum adsorption slide block of the air-floating type verticality measuring instrument cannot be separated from the marble guide surface, and dirt such as dust is prevented from entering a gap between the air-floating slide block and the marble guide surface;
after the machine is started and the air path is connected, the forward and lateral air-floating slide blocks can automatically adsorb onto the marble guide surface, and the normal work of the air-floating slide seat is ensured.
In order to solve the problems in the prior art, the utility model provides a clamping mechanism for preventing the vacuum adsorption slide block from separating from the guide surface after the air is cut off, which comprises a positive clamping cylinder (9) and a lateral clamping cylinder;
the positive clamping cylinder comprises a positive clamping cylinder piston rod, a positive clamping cylinder body, a first pressure spring and a clamping rod; the positive pressure air cavity on the positive clamping cylinder is communicated with the positive pressure air circuit, when air is ventilated, air pressure pushes the piston rod of the positive clamping cylinder to compress the first pressure spring, the marble main body is loosened by the clamping rod, when air is cut off, the positive pressure air cavity loses pressure, the first pressure spring pushes the piston rod of the positive clamping cylinder to reset, and the marble main body is clamped by the clamping rod;
the lateral clamping cylinder comprises a clamping sheet, a lateral clamping cylinder body, a lateral clamping cylinder piston rod and a second pressure spring; the positive pressure air cavity on the lateral clamping cylinder is communicated with the positive pressure air circuit, when ventilation is carried out, air pressure pushes the piston rod of the lateral clamping cylinder to compress the second pressure spring, the marble main body is loosened by the clamping piece, when air is cut off, the positive pressure air cavity loses pressure, the second pressure spring pushes the piston rod of the lateral clamping cylinder to reset, and the clamping piece clamps the marble main body at the moment.
As a further improvement, the positive clamping cylinder piston rod and the lateral clamping cylinder piston rod are respectively provided with a sealing ring.
As a further improvement of the utility model, the malleation air cavity on positive die clamping cylinder and the side direction die clamping cylinder belongs to same positive pressure gas circuit.
An air-floating slide seat comprises the clamping mechanism for preventing the vacuum adsorption slide block from being separated from the guide surface after air cut, and further comprises a lengthening rod, a measuring head clamping rod, a forward air-floating slide block, a right-side balance block and a left-side air-floating slide block; the long rod is provided with the measuring head clamping rod, the measuring head clamping rod clamps the measuring head, the forward air floatation sliding block is connected with the left air floatation sliding block, and the forward air floatation sliding block is connected with the right balance block; a positive clamping cylinder is arranged on the left air-floating slide block, and a clamping rod of the clamping cylinder extends into a groove on the side surface of the marble main body; the right balance block is provided with a positive clamping cylinder, and a clamping rod of the clamping cylinder extends into a groove on the side surface of the marble main body; a lateral clamping cylinder is arranged on the right balance block, and a clamping sheet of the cylinder is propped against the right side surface of the marble main body;
as a further improvement of the utility model, the positive air-float slide block and the left air-float slide block are connected through a hinge.
As a further improvement, the positive air-float slide block and the right balance block are rigidly connected through screws, and the right balance block is not in contact with the right side surface of the marble main body.
As a further improvement of the utility model, the upper end and the lower end of the left air-floating slide block are respectively provided with a positive clamping cylinder.
As a further improvement of the utility model, a positive clamping cylinder is respectively arranged at the upper end and the lower end of the right balance block.
As a further improvement, the central symmetry of the right balance block is provided with two lateral clamping cylinders.
The utility model has the advantages that:
the utility model is provided with a clamping cylinder on the opposite surface of each vacuum adsorption slide block; and communicating the positive pressure air cavity of the clamping cylinder with the positive pressure air circuit of the vacuum adsorption slide block. The structure is simple; the volume is small; the condition that the air-floating slide block is separated from the marble guide surface after air is cut off can be overcome; after the machine is started and ventilated, the air-floating slide block can be automatically adsorbed on the marble guide surface.
Drawings
FIG. 1 is a schematic view of the air-floating slide carriage device of the present invention;
FIG. 2 is a schematic side deflection view of the air slide after air is turned off;
FIG. 3 is a schematic view of a positive clamping cylinder configuration;
fig. 4 is a schematic view of a lateral clamp cylinder configuration.
The names of the components in the figure are as follows:
the marble clamp comprises a marble main body 1, a traction rope 2, a lateral clamping cylinder 3, an extension bar 4, a measuring head 5, a measuring head clamping rod 6, a forward air floating slide block 7, a right balance block 8, a forward clamping cylinder 9, a left air floating slide block 10, a forward clamping cylinder piston rod 11, a forward clamping cylinder body 12, a first pressure spring 13, a clamping rod 14, a clamping piece 15, a lateral clamping cylinder body 16, a lateral clamping cylinder piston rod 17 and a second pressure spring 18.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
A clamping mechanism for preventing a vacuum adsorption slide block from being separated from a guide surface after air is cut off is characterized in that a simple automatic clamping mechanism is added on an air-floating slide seat, so that the air-floating slide block is not separated from a marble guide surface after the air-floating slide block is cut off; after the machine is started for ventilation, the clamping mechanism can be automatically loosened, so that the air-floating slide block can be automatically adsorbed on the marble guide surface and can move up and down under the traction of the traction rope.
The clamping mechanism comprises a forward clamping cylinder 9 and a lateral clamping cylinder 3.
Referring to fig. 3, the forward clamping cylinder 9 includes a forward clamping cylinder body 12, a forward clamping cylinder piston rod 11, a first pressure spring 13, a clamping rod 14 and a sealing ring on the piston rod;
referring to fig. 4, the lateral clamping cylinder 3 comprises a lateral clamping cylinder body 16, a lateral clamping cylinder piston rod 17, a second pressure spring 18, a clamping sheet 15 and a sealing ring on the piston rod;
positive pressure air cavities on the positive clamping cylinder 9 and the lateral clamping cylinder 3 are communicated with a positive pressure air path, when ventilation is carried out, air pressure pushes the piston rod to compress the spring, the marble main body is loosened by the clamping rod 14 and the clamping sheet 15, when air is cut off, the positive pressure air cavities lose pressure, the pressure spring pushes the piston rod to reset, and the clamping rod and the clamping sheet clamp the marble main body at the moment.
As shown in fig. 1, the air-floating slide seat includes a forward air-floating slider 7, a left air-floating slider 10, a right balance block 8, a forward clamping cylinder 9, a lateral clamping cylinder 3, an extension rod 4, a measuring head 5, and a measuring head clamping rod 6.
The positive air-floating slide block 7 and the left air-floating slide block 10 are connected through a hinge to adapt to the right angles of different marble main bodies; the positive air-floating slide block 7 and the right balance block 8 are rigidly connected through screws, and the right balance block 8 is not in contact with the right side surface of the marble main body and is not used as a guide.
As shown in fig. 1 and 3, the upper end and the lower end of a left air-floating slide block 10 are respectively provided with a positive clamping cylinder 9, and a clamping rod 14 of the positive clamping cylinder extends into a groove on the side surface of the marble body.
As shown in fig. 1, a right-hand counter weight 8 is provided at its upper and lower ends with a positive clamping cylinder 9, the clamping rod 14 of which extends into a groove in the side of the marble body.
As shown in fig. 1 and 4, two lateral clamping cylinders 3 are symmetrically arranged in the center of the right-side counterbalance 8, and clamping sheets 15 of the cylinders can be pressed against the right side surface of the marble body.
The positive pressure air cavity on the positive clamping cylinder 9 is communicated with the positive pressure air paths of the two vacuum adsorption sliders, when the air is cut off, the positive pressure air cavity loses pressure, the first pressure spring 13 pushes the piston rod 11 of the positive clamping cylinder to reset, the clamping rod 14 clamps the side surface of the groove on the side surface of the marble main body (as shown in figure 3), and at the moment, the clamping force of the positive clamping cylinder 9 overcomes the positive deflection moment MIs just(as shown in the front view of fig. 1) the positive air-bearing slider 7 is pulled toward the marble positive guide surface and the guide surface of the positive air-bearing slider 7 is brought into close contact with the marble positive guide surface. When the air path is ventilated, the positive pressure air path delays for a certain time relative to the negative pressure air path, and because the negative pressure acts first, the guide surface of the positive air-floating slide block 7 is tightly attached to the positive guide surface of the marble at the moment, and the guide surface of the positive air-floating slide block 7 is automatically adsorbed on the marble guide surface under the action of vacuum suction; is then justAfter the air pressing channel is connected, air pressure pushes the positive clamping cylinder piston rod 11 to compress the first pressure spring 13, at the moment, the clamping rod 14 moves forwards along with the positive clamping cylinder piston rod 11 to be separated from the side surface of the groove in the side surface of the marble main body, and meanwhile, the positive air-floating slide block 7 is in a suspension state under the combined action of positive pressure and negative pressure.
The positive pressure air cavity on the lateral clamping cylinder 3 is also communicated with the positive pressure air paths of the two vacuum adsorption sliding blocks, when the air is cut off, the positive pressure air cavity loses pressure, the second pressure spring 18 pushes the lateral clamping cylinder piston rod 17 to reset, the clamping sheet 15 clamps the right side surface of the marble main body (as shown in figure 4), and the clamping force of the lateral clamping cylinder 3 overcomes the lateral deflection moment M at the momentSide wallThe left air-bearing slider 10 is pulled to the left guide surface of the marble (as shown in fig. 2), and the guide surface of the left air-bearing slider 10 is tightly attached to the left guide surface of the marble. When the air path is ventilated, the positive pressure air path delays for a certain time relative to the negative pressure air path, and because the negative pressure acts first, the guide surface of the left air-floating slide block 10 is tightly attached to the left guide surface of the marble at the moment, and the guide surface of the left air-floating slide block 10 is automatically adsorbed on the left guide surface of the marble under the action of vacuum suction; and after the positive pressure air path is communicated, the air pressure pushes the lateral clamping cylinder piston rod 17 to compress the second pressure spring 18, at the moment, the clamping sheet 15 moves backwards along with the lateral clamping cylinder piston rod 17 to be separated from the right side surface of the marble main body, and meanwhile, the left air-floating slide block 10 is in a suspension state under the combined action of positive pressure and negative pressure.
The positive pressure air chambers on the positive clamping cylinder 9 and the lateral clamping cylinder 3 belong to the same positive pressure air path, so that the actions of the two cylinders are almost synchronous, namely almost simultaneously clamping and simultaneously releasing. Therefore, the air-floating slide seat can ensure that the guide surfaces of the forward air-floating slide block 7 and the lateral air-floating slide block 10 are tightly attached to the marble guide surface when in an air-off state, and the forward air-floating slide block 7 and the lateral air-floating slide block 10 are in a suspension state and can move up and down under the traction of the traction rope when in an air-ventilating state.
The design can be used for vacuum adsorption sliding block structures which are used in the vertical direction and the horizontal direction similarly.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (9)
1. The utility model provides a clamping mechanism for preventing after disconnected gas vacuum adsorption slider breaks away from spigot surface which characterized in that: the clamping mechanism comprises a positive clamping cylinder (9) and a lateral clamping cylinder (3);
the positive clamping cylinder (9) comprises a positive clamping cylinder piston rod (11), a positive clamping cylinder body (12), a first pressure spring (13) and a clamping rod (14); the positive pressure air cavity on the positive clamping cylinder (9) is communicated with the positive pressure air circuit, when air is ventilated, the air pressure pushes the positive clamping cylinder piston rod (11) to compress the first pressure spring (13), at the moment, the clamping rod (14) loosens the marble main body, when air is cut off, the positive pressure air cavity loses pressure, the first pressure spring (13) pushes the positive clamping cylinder piston rod (11) to reset, and at the moment, the clamping rod (14) clamps the marble main body;
the lateral clamping cylinder (3) comprises a clamping sheet (15), a lateral clamping cylinder body (16), a lateral clamping cylinder piston rod (17) and a second pressure spring (18); the positive pressure air cavity on the lateral clamping cylinder (3) is communicated with the positive pressure air circuit, when ventilation is performed, air pressure pushes the lateral clamping cylinder piston rod (17) to compress the second pressure spring (18), the marble main body is loosened by the clamping piece (15), when air is cut off, the positive pressure air cavity loses pressure, the second pressure spring (18) pushes the lateral clamping cylinder piston rod (17) to reset, and the clamping piece (15) clamps the marble main body at the moment.
2. The clamping mechanism for preventing the vacuum adsorption slider from being separated from the guide surface after the air cut-off as claimed in claim 1, wherein: the positive clamping cylinder piston rod (11) and the lateral clamping cylinder piston rod (17) are respectively provided with a sealing ring.
3. The clamping mechanism for preventing the vacuum adsorption slider from being separated from the guide surface after the air cut-off as claimed in claim 1, wherein: the positive pressure air chambers on the positive clamping cylinder (9) and the lateral clamping cylinder (3) belong to the same positive pressure air path.
4. An air-float slide carriage is characterized in that: the clamping mechanism comprises the clamping mechanism for preventing the vacuum adsorption sliding block from being separated from the guide surface after the air supply is cut off as claimed in claim 1, 2 or 3, and further comprises an extension rod (4), a measuring head (5), a measuring head clamping rod (6), a forward air-floating sliding block (7), a right-side balance block (8) and a left-side air-floating sliding block (10); the measuring head clamping rod (6) is arranged on the long rod (4), the measuring head (5) is clamped by the measuring head clamping rod (6), the forward air floatation sliding block (7) is connected with the left air floatation sliding block (10), and the forward air floatation sliding block (7) is connected with the right balance block (8); a positive clamping cylinder (9) is arranged on the left air-floating slide block (10), and a clamping rod (14) of the clamping cylinder extends into a groove on the side surface of the marble body; the right balance block (8) is provided with a positive clamping cylinder (9), and a clamping rod (14) of the clamping cylinder extends into a groove on the side surface of the marble main body; the right balance block (8) is provided with a lateral clamping cylinder (3), and a clamping sheet (15) of the cylinder is pressed against the right side surface of the marble main body.
5. The air bearing carriage of claim 4 wherein: the positive air-floating slide block (7) is connected with the left air-floating slide block (10) through a hinge.
6. The air bearing carriage of claim 4 wherein: the positive air-floating slide block (7) and the right balance block (8) are rigidly connected through screws, and the right balance block (8) is not in contact with the right side surface of the marble main body.
7. The air bearing carriage of claim 4 wherein: the upper end and the lower end of the left air-floating slide block (10) are respectively provided with a positive clamping cylinder (9).
8. The air bearing carriage of claim 4 wherein: the upper end and the lower end of the right balance block (8) are respectively provided with a positive clamping cylinder (9).
9. The air bearing carriage of claim 4 wherein: and two lateral clamping cylinders (3) are symmetrically arranged in the center of the right balance block (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020446765.9U CN211601888U (en) | 2020-03-31 | 2020-03-31 | Clamping mechanism and air-float slide seat comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020446765.9U CN211601888U (en) | 2020-03-31 | 2020-03-31 | Clamping mechanism and air-float slide seat comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211601888U true CN211601888U (en) | 2020-09-29 |
Family
ID=72583098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020446765.9U Active CN211601888U (en) | 2020-03-31 | 2020-03-31 | Clamping mechanism and air-float slide seat comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211601888U (en) |
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2020
- 2020-03-31 CN CN202020446765.9U patent/CN211601888U/en active Active
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