CN216815433U - Surface flatness detection device of office chair lifting shaft - Google Patents
Surface flatness detection device of office chair lifting shaft Download PDFInfo
- Publication number
- CN216815433U CN216815433U CN202220493339.XU CN202220493339U CN216815433U CN 216815433 U CN216815433 U CN 216815433U CN 202220493339 U CN202220493339 U CN 202220493339U CN 216815433 U CN216815433 U CN 216815433U
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- lifting shaft
- cylinder
- test piece
- rod
- office chair
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- 238000001514 detection method Methods 0.000 title claims abstract description 50
- 238000012360 testing method Methods 0.000 claims abstract description 60
- 238000006073 displacement reaction Methods 0.000 claims description 25
- 239000002184 metal Substances 0.000 claims description 20
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000003746 surface roughness Effects 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 2
- 238000007906 compression Methods 0.000 claims 2
- 238000003825 pressing Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 12
- 230000009191 jumping Effects 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract 1
- 230000005012 migration Effects 0.000 description 8
- 238000013508 migration Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a surface flatness detection device of an office chair lifting shaft, which comprises a control box, a gas control box, a flatness detection mechanism, a supporting mechanism, a driving box and a pressing mechanism, wherein the gas control box is electrically connected with the control box, the flatness detection mechanism, the supporting mechanism, the driving box and the pressing mechanism are all arranged on a bottom plate, the supporting mechanism and the pressing mechanism are matched for positioning a lifting shaft test piece, the driving box is used for connecting the lifting shaft test piece and driving the lifting shaft test piece to rotate, the flatness detection mechanism is used for detecting the surface flatness of the lifting shaft test piece, the pressing mechanism and the flatness detection mechanism are all connected with the gas control box through gas pipes, and the driving box, the supporting mechanism and the flatness detection mechanism are all electrically connected with the control box. The utility model not only can compress and rotate the lifting shaft test piece to prevent the lifting shaft test piece from jumping in the detection process, but also can improve the surface flatness detection precision of the lifting shaft test piece and reduce the measurement error.
Description
Technical Field
The utility model relates to a surface flatness detection device for an office chair lifting shaft.
Background
The office chair refers to various chairs which are convenient to work in daily work and social activities, a backrest chair on which a desktop is seated when the desktop works in a sitting posture, and a generalized office chair is all chairs used in offices.
Present office chair is all controlled by the lift axle at the in-process that realizes going up and down, in order to guarantee lift axle's suitability, lift axle need carry out the roughness of circumference surface to it in process of production and detect, prevents that the outer circumferential surface unevenness of lift axle from causing office chair can't realize normal raising function, seriously influences office chair's use travelling comfort.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a technical scheme of a surface flatness detection device of an office chair lifting shaft, aiming at the defects in the prior art.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a surface smoothness detection device of office chair lift axle which characterized in that: the device comprises a control box, a gas control box, a flatness detection mechanism, a support mechanism, a driving box and a pressing mechanism, wherein the gas control box is electrically connected with the control box; this detection device not only can compress tightly the rotation to the lift axle test piece, prevents that the lift axle test piece from taking place to beat in the testing process, can improve the surface smoothness detection precision of lift axle test piece moreover, reduces measuring error.
Further, roughness detection mechanism includes the measuring pole, contact displacement sensor and horizontal migration mechanism, contact displacement sensor locates the tip of measuring pole, the measuring pole is fixed in on the horizontal migration mechanism, the measuring pole passes through wire connection control box, horizontal migration mechanism can drive the measuring pole horizontal migration, make contact displacement sensor be close to the lift axle test piece and detect, improve contact displacement sensor's detection precision, contact displacement sensor can show the data information transmission that detects to the control box, the operator of being convenient for observes.
Further, the horizontal moving mechanism comprises a first cylinder, a second cylinder, a first moving plate and a second moving plate, a first slide rail is arranged on the bottom plate in parallel, the first moving plate is connected to the first slide rail in a sliding manner through a first slide block, the first cylinder is fixed on the bottom plate, the first cylinder is connected to the first moving plate through a first piston rod, a second slide rail is arranged on the top surface of the first moving plate, the second moving plate is connected to the second slide rail in a sliding manner through a second slide block, the second cylinder is fixed on the first moving plate, a boosting block is arranged on the side surface of the second moving plate, the second cylinder is connected to the boosting block through a second piston rod, the detection rod is fixedly connected to the second moving plate through a fixed block, the first cylinder can drive the first moving plate to horizontally move through the first piston rod, so that the contact type displacement sensor horizontally moves along the axial direction of the lifting rod test piece, and the detection range of the contact type displacement sensor is enlarged, the second cylinder can drive the second movable plate to move horizontally through the second piston rod, so that the contact type displacement sensor is close to or far away from the lifting shaft test piece according to the detection requirement, and the control is flexible and convenient.
Further, the supporting mechanism comprises a T-shaped block and a V-shaped block, the T-shaped block is fixed on the bottom plate, the two V-shaped blocks are symmetrically arranged on the top surface of the T-shaped block and used for supporting the lifting shaft test piece, the T-shaped block improves the stability and the reliability of installation of the V-shaped block, the V-shaped block can limit the lifting shaft test piece, the lifting shaft test piece is prevented from being deviated in the rotating process, and the detection precision is improved.
Further, hold-down mechanism includes the stand, the third cylinder, lifter plate and direction subassembly, stand and third cylinder are all located on the bottom plate, the third cylinder is located between two stands, the lifter plate passes through the direction subassembly and connects the stand, the third cylinder passes through the third piston rod and connects the direction subassembly, can drive the direction subassembly through the third piston rod through the third cylinder and remove, and then can realize the removal of lifter plate, the realization is to compressing tightly or unclamping of lift axle test piece, the stand has improved the stability and the reliability of direction subassembly during operation.
Further, the guide assembly comprises a guide rod, a cross beam, a cantilever and a fixing rod, the guide rod is vertically fixed on the top surface of the stand column, the cross beam is movably connected onto the guide rod, the cantilever is connected with the lifting plate through the fixing rod, the cross beam is connected with the cantilever through the reinforcing rod, the cross beam can move up and down along the guide rod, and then the lifting plate can be driven by the cantilever through the fixing rod to move up and down, so that the moving stability and reliability of the lifting plate are improved.
Furthermore, the top of guide arm is equipped with the dog, and the dog can carry on spacingly to the crossbeam, prevents that the crossbeam from surpassing the length of guide arm and coming off at the in-process that rises.
Furthermore, a groove is formed in the lifting plate, pressing wheels are symmetrically arranged in the groove and are connected with the lifting plate through connecting rods, the grooves are convenient for installation of the pressing wheels, the connecting rods improve the stability of connection between the pressing wheels and the lifting plate, pressing of the lifting shaft test piece can be achieved through the pressing wheels, the lifting shaft test piece is prevented from jumping in the rotating process, the contact area with the lifting shaft test piece can be reduced, and friction force is reduced.
Further, be equipped with the metal contact on the lifter plate, be equipped with the metal contact pole on the V-arrangement piece, metal contact and metal contact pole phase-match can give the third cylinder with the signal transmission when metal contact and metal contact pole mutual contact, make third cylinder stop work.
Further, the control box is provided with a display screen and control buttons.
Due to the adoption of the technical scheme, the utility model has the following beneficial effects:
1. this detection device not only can compress tightly the rotation to the lift axle test piece, prevents that the lift axle test piece from taking place to beat in the testing process, can improve the surface smoothness detection precision of lift axle test piece moreover, reduces measuring error.
2. The horizontal movement mechanism can drive the detection rod to move horizontally, so that the contact type displacement sensor is close to the lifting shaft test piece and detects, the detection precision of the contact type displacement sensor is improved, the contact type displacement sensor can transmit detected data information to the control box to display, and an operator can observe conveniently.
3. Can drive the direction subassembly through the third piston rod through the third cylinder and remove, and then can realize the removal of lifter plate, realize compressing tightly or loosening to the lift axle test piece, the stand has improved the stability and the reliability of direction subassembly during operation.
4. The crossbeam can reciprocate along the guide arm, and then can drive the lifter plate through the dead lever through the cantilever and reciprocate, has improved the stability and the reliability that the lifter plate removed.
Description of the drawings:
the utility model will be further described with reference to the accompanying drawings in which:
FIG. 1 is an effect diagram of a surface flatness detecting apparatus of an office chair lifting shaft according to the present invention;
FIG. 2 is a schematic view of the connection between the vertical column, the third cylinder, the supporting mechanism, the horizontal moving mechanism and the bottom plate according to the present invention;
fig. 3 is a schematic structural view of the lifting plate of the present invention.
In the figure: 1-a control box; 2-a pneumatic control box; 3-a bottom plate; 4-a support mechanism; 5-a first cylinder; 6-a second cylinder; 7-a horizontal moving mechanism; 8-lifting shaft test piece; 9-upright post; 10-a lifting plate; 11-a guide bar; 12-a stop block; 13-a cross beam; 14-a cantilever; 15-a reinforcing rod; 16-a fixing rod; 17-a first moving plate; 18-a first slide rail; 19-a second moving plate; 20-a second slide rail; 21-a boosting block; 22-fixed block; 23-a detection rod; 24-a contact displacement sensor; 25-T-shaped blocks; 26-V block; 27-metal contact bar; 28-a third cylinder; 29-a third piston rod; 30-a drive box; 31-a groove; 32-metal contact pads; 33-a pinch roller; 34-connecting rod.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terms first, second and the like in the description and in the claims, and in the drawings, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
As shown in fig. 1 to 3, the surface flatness detecting device for the lifting shaft of the office chair of the present invention comprises a control box 1, a pneumatic control box 2, a flatness detecting mechanism, a supporting mechanism 4, a driving box 30 and a pressing mechanism, wherein the pneumatic control box 2 is electrically connected with the control box 1, the control box 1 is provided with a display screen and a control button, and an air pump can be installed in the pneumatic control box 2 for controlling each air cylinder to work.
Flatness detection mechanism, supporting mechanism 4, drive case 30 and hold-down mechanism all locate on bottom plate 3, flatness detection mechanism is used for detecting the surface flatness of lift axle test piece 8, flatness detection mechanism includes measuring bar 23, contact displacement sensor 24 and horizontal migration mechanism 7, the tip of measuring bar 23 is located to contact displacement sensor 24, measuring bar 23 is fixed in on the horizontal migration mechanism 7, measuring bar 23 passes through wire connection control box 1, horizontal migration mechanism 7 can drive measuring bar 23 horizontal migration, make contact displacement sensor 24 be close to lift axle test piece 8 and detect, improve contact displacement sensor 24's detection precision, contact displacement sensor 24 can transmit the data information who detects to control box 1 and show, be convenient for the operator to observe.
The horizontal moving mechanism 7 comprises a first cylinder 5, a second cylinder 6, a first moving plate 17 and a second moving plate 19, a first slide rail 18 is arranged on the bottom plate 3 in parallel, the first moving plate 17 is connected to the first slide rail 18 in a sliding manner through a first slider, the first cylinder 5 is fixed on the bottom plate 3, the first cylinder 5 is connected to the first moving plate 17 through a first piston rod, a second slide rail 20 is arranged on the top surface of the first moving plate 17, the second moving plate 19 is connected to the second slide rail 20 in a sliding manner through a second slider, the second cylinder 6 is fixed on the first moving plate 17, a boosting block 21 is arranged on the side surface of the second moving plate 19, the second cylinder 6 is connected to the boosting block 21 through a second piston rod, a detection rod 23 is fixedly connected to the second moving plate 19 through a fixed block 22, the first cylinder 5 can drive the first moving plate 17 to move horizontally through the first piston rod, and further realize that the contact type displacement sensor 24 moves horizontally along the axial direction of the lifting rod test piece, the detection range of the contact displacement sensor 24 is enlarged, and the second cylinder 6 can drive the second moving plate 19 to horizontally move through the second piston rod, so that the contact displacement sensor 24 is close to or far away from the lifting shaft test piece 8 according to the detection requirement, and the control is flexible and convenient.
Supporting mechanism 4 and hold-down mechanism cooperation are used for fixing a position lifting shaft test piece 8, supporting mechanism 4 includes T-shaped piece 25 and V-arrangement piece 26, T-shaped piece 25 is fixed in on bottom plate 3, two V-arrangement piece 26 symmetries are located on the top surface of T-shaped piece 25, be used for supporting lifting shaft test piece 8, T-shaped piece 25 has improved the stability and the reliability of V-arrangement piece 26 installation, V-arrangement piece 26 can carry on spacingly to lifting shaft test piece 8, prevent that lifting shaft test piece 8 from taking place the skew at rotatory in-process, improve and detect the precision.
Hold-down mechanism includes stand 9, third cylinder 28, lifter plate 10 and direction subassembly, stand 9 and third cylinder 28 are all located on the bottom plate 3, third cylinder 28 is located between two stand 9, lifter plate 10 passes through direction subassembly and connects stand 9, third cylinder 28 connects the direction subassembly through third piston rod 29, can drive the direction subassembly through third piston rod 29 through third cylinder 28 and remove, and then can realize the removal of lifter plate 10, the realization is to compressing tightly or unclamping of lift axle test piece 8, stand 9 has improved the stability and the reliability of direction subassembly during operation. The pressing mechanism and the flatness detection mechanism are both connected with the pneumatic control box 2 through a pneumatic pipe,
the guide assembly comprises a guide rod 11, a cross beam 13, a cantilever 14 and a fixing rod 16, the guide rod 11 is vertically fixed on the top surface of the upright post 9, the cross beam 13 is movably connected onto the guide rod 11, the cantilever 14 is connected with the lifting plate 10 through the fixing rod 16, the cross beam 13 is connected with the cantilever 14 through a reinforcing rod 15, the cross beam 13 can move up and down along the guide rod 11, and then the lifting plate 10 can be driven by the cantilever 14 through the fixing rod 16 to move up and down, so that the stability and the reliability of the movement of the lifting plate 10 are improved. The top end of the guide rod 11 is provided with a stop 12, and the stop 12 can limit the cross beam 13 to prevent the cross beam 13 from falling off after exceeding the length of the guide rod 11 in the ascending process.
Be equipped with recess 31 on the lifter plate 10, the symmetry is equipped with pinch roller 33 in the recess 31, pinch roller 33 passes through connecting rod 34 and connects lifter plate 10, recess 31 is convenient for the installation of pinch roller 33, connecting rod 34 has improved the stability of being connected between pinch roller 33 and the lifter plate 10, not only can realize compressing tightly lifting shaft test piece 8 through pinch roller 33, prevent that lifting shaft test piece 8 from taking place to beat at rotatory in-process, and can reduce and lift shaft test piece 8's area of contact, reduce frictional force.
The lifting plate 10 is provided with a metal contact piece 32, the V-shaped block 26 is provided with a metal contact rod 27, the metal contact piece 32 is matched with the metal contact rod 27, and when the metal contact piece 32 is contacted with the metal contact rod 27, a signal can be transmitted to the third air cylinder 28, so that the third air cylinder 28 stops working.
When the lifting shaft test piece is actually used, a lifting shaft test piece is placed on a supporting mechanism, one end of the lifting shaft test piece is inserted into a driving box, the end portion of the lifting shaft test piece is clamped through a three-jaw chuck in the driving box, then the air control box is controlled to work through the control box, a third air cylinder drives a lifting plate to move downwards until a metal contact piece and a metal contact rod are in contact with each other, at the moment, a pressing wheel just presses the outer surface of the lifting shaft test piece, the first air cylinder and the second air cylinder are controlled to work through the air control box, a contact type displacement sensor moves to a required position, the driving box is started, the lifting shaft test piece starts to rotate, a displacement signal is converted into an electric signal through a contact type displacement sensor and is transmitted to the control box, the surface flatness of the lifting shaft test piece is obtained through the control box, and the display is displayed through a display screen.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple variations, equivalent substitutions or modifications based on the present invention to achieve substantially the same technical effects are within the scope of the present invention.
Claims (10)
1. The utility model provides a surface smoothness detection device of office chair lift axle which characterized in that: including control box, pneumatic control case, roughness detection mechanism, supporting mechanism, drive case and hold-down mechanism, the pneumatic control case with control box electric connection, roughness detection mechanism the supporting mechanism the drive case with hold-down mechanism all locates on the bottom plate, supporting mechanism with the hold-down mechanism cooperation is used for fixing a position the lift axle test piece, the drive case is used for connecting the lift axle test piece, and drives the lift axle test piece is rotatory, roughness detection mechanism is used for detecting the surface roughness of lift axle test piece, hold-down mechanism with roughness detection mechanism all connects through the gas-supply pipe the pneumatic control case, the drive case the supporting mechanism with roughness detection mechanism all with control box electric connection.
2. The apparatus for detecting the surface flatness of an office chair lifting shaft according to claim 1, wherein: the flatness detection mechanism comprises a detection rod, a contact displacement sensor and a horizontal movement mechanism, the contact displacement sensor is arranged at the end part of the detection rod, the detection rod is fixed on the horizontal movement mechanism, and the detection rod is connected with the control box through a lead.
3. The apparatus for detecting the surface flatness of an office chair lifting shaft according to claim 2, wherein: the horizontal moving mechanism comprises a first cylinder, a second cylinder, a first moving plate and a second moving plate, wherein first sliding rails are arranged on the bottom plate in parallel, the first moving plate is connected to the first sliding rails through first sliding blocks in a sliding mode, the first cylinder is fixed to the bottom plate, the first cylinder is connected to the first moving plate through a first piston rod, second sliding rails are arranged on the top surface of the first moving plate, the second moving plate is connected to the second sliding rails through second sliding blocks in a sliding mode, the second cylinder is fixed to the first moving plate, boosting blocks are arranged on the side faces of the second moving plate, the second cylinder is connected to the boosting blocks through second piston rods, and the detection rod is fixedly connected to the second moving plate through fixing blocks.
4. The apparatus for detecting the surface flatness of an office chair lifting shaft according to claim 1, wherein: the supporting mechanism comprises T-shaped blocks and V-shaped blocks, the T-shaped blocks are fixed on the bottom plate, and the two V-shaped blocks are symmetrically arranged on the top surfaces of the T-shaped blocks and used for supporting the lifting shaft test piece.
5. The apparatus for detecting surface flatness of an office chair lifting shaft according to claim 4, wherein: hold-down mechanism includes stand, third cylinder, lifter plate and direction subassembly, the stand with the third cylinder is all located on the bottom plate, the third cylinder is located two between the stand, the lifter plate passes through the direction subassembly is connected the stand, the third cylinder passes through the third piston rod and connects the direction subassembly.
6. The apparatus for detecting the surface flatness of an office chair lifting shaft according to claim 5, wherein: the guide assembly comprises a guide rod, a cross beam, a cantilever and a fixing rod, the guide rod is vertically fixed on the top surface of the stand column, the cross beam is movably connected onto the guide rod, the cantilever is connected with the lifting plate through the fixing rod, and the cross beam is connected with the cantilever through the reinforcing rod.
7. The apparatus for detecting the surface flatness of an office chair lifting shaft according to claim 6, wherein: the top end of the guide rod is provided with a stop block.
8. The apparatus for detecting the surface flatness of an office chair lifting shaft according to claim 5, wherein: the lifting plate is provided with a groove, compression wheels are symmetrically arranged in the groove, and the compression wheels are connected with the lifting plate through connecting rods.
9. The apparatus for detecting the surface flatness of an office chair lifting shaft according to claim 5, wherein: the lifting plate is provided with a metal contact piece, the V-shaped block is provided with a metal contact rod, and the metal contact piece is matched with the metal contact rod.
10. The apparatus for detecting surface flatness of an office chair lifting shaft according to claim 1, characterized in that: the control box is provided with a display screen and a control button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220493339.XU CN216815433U (en) | 2022-03-09 | 2022-03-09 | Surface flatness detection device of office chair lifting shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220493339.XU CN216815433U (en) | 2022-03-09 | 2022-03-09 | Surface flatness detection device of office chair lifting shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216815433U true CN216815433U (en) | 2022-06-24 |
Family
ID=82045910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220493339.XU Expired - Fee Related CN216815433U (en) | 2022-03-09 | 2022-03-09 | Surface flatness detection device of office chair lifting shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216815433U (en) |
-
2022
- 2022-03-09 CN CN202220493339.XU patent/CN216815433U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220624 |