CN113125185A - Chair frame detection device and detection method - Google Patents
Chair frame detection device and detection method Download PDFInfo
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- CN113125185A CN113125185A CN202110446077.1A CN202110446077A CN113125185A CN 113125185 A CN113125185 A CN 113125185A CN 202110446077 A CN202110446077 A CN 202110446077A CN 113125185 A CN113125185 A CN 113125185A
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- 238000001514 detection method Methods 0.000 title claims abstract description 153
- 230000003287 optical effect Effects 0.000 claims abstract description 14
- 230000000712 assembly Effects 0.000 claims description 30
- 238000000429 assembly Methods 0.000 claims description 30
- 238000003825 pressing Methods 0.000 claims description 21
- 238000012360 testing method Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 230000002159 abnormal effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/001—Testing of furniture, e.g. seats or mattresses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/007—Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing
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- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a chair frame detection device and a detection method, which comprises a detection bottom plate, wherein a detection frame is fixedly arranged at the top of the detection bottom plate, a rotating shaft assembly is rotatably connected to one side of the detection frame, a power assembly for driving the rotating shaft assembly to rotate is arranged at one side of the top of the detection bottom plate, the rotating shaft assembly comprises an optical shaft and a screw rod, the top end of the optical shaft is fixedly connected with the bottom end of the screw rod, and a screw rod nut is in threaded connection with the screw rod. Large error and low precision.
Description
Technical Field
The invention belongs to the technical field of office chairs, and particularly relates to a chair frame detection device and a detection method.
Background
An office chair refers to various chairs which are convenient for work in daily work and social activities. Office chairs are classified into a narrow office chair and a generalized office chair, the narrow office chair refers to a backrest chair on which a person sits when working on a desktop in a sitting posture, and the generalized office chair is all chairs used in offices and comprises a large office chair, a middle office chair, a guest-meeting chair, a staff chair, a conference chair, a visitor chair, a training chair and the like.
At present, in the field of office chair production and manufacturing, after each component of a chair is assembled on a simple production line, the stability of the chair needs to be detected, at present, a detector often tests the stability of the chair at a simple detection station to see whether the chair is stable or not and whether abnormal sound exists or not, the detection method is low in efficiency, human factors are large, standardized detection cannot be achieved, products cannot be detected according to the strength of industrial standards, and therefore the product quality fluctuation is often large.
According to the other method, the test equipment can only apply loading force to the test piece in the vertical direction, can not provide loading force in the horizontal direction, and can not provide loading force in the horizontal direction. Therefore, a chair frame detection device and a detection method are provided to solve the problems in the prior art.
Disclosure of Invention
The invention aims to provide a chair frame detection device and a detection method, and the chair frame detection device and the detection method can be used for detecting the stability of an office chair in both the vertical direction and the horizontal direction by arranging a power assembly, a vertical detection assembly and a horizontal detection assembly in a matched manner, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the following technical scheme: a chair frame detection device and a detection method comprise a detection bottom plate, wherein a detection frame is fixedly arranged at the top of the detection bottom plate, a rotating shaft assembly is rotatably connected to one side of the detection frame, a power assembly for driving the rotating shaft assembly to rotate is arranged at one side of the top of the detection bottom plate, the rotating shaft assembly comprises an optical shaft and a lead screw, the top end of the optical shaft is fixedly connected with the bottom end of the lead screw, a lead screw nut is in threaded connection with the lead screw, a guide block is fixedly sleeved outside the lead screw nut, a vertical detection assembly is arranged at one side of the guide block, the vertical detection assembly comprises a cross beam and pressure assemblies, one end of the cross beam penetrates through the detection frame and is fixedly connected with the guide block, the other end of the cross beam is slidably connected to one side of the detection frame, the pressure assemblies are arranged, the horizontal detection assembly comprises a hydraulic cylinder and a pressure assembly, the hydraulic cylinder is fixedly installed at the top of the detection bottom plate, and the other group of the pressure assembly is fixedly installed at the output rod end of the hydraulic cylinder.
Preferably, the power assembly comprises a connecting plate, a motor and a connecting shaft, the connecting plate is fixedly installed on one side of the top of the detection bottom plate, the connecting plate and the detection bottom plate are vertically arranged, the motor is fixedly installed on one side of the connecting plate, and one end of the connecting shaft is fixedly connected to the output shaft end of the motor.
Preferably, the power assembly further comprises a first bevel gear and a second bevel gear, the other end of the connecting shaft is fixedly sleeved with the first bevel gear, the optical axis is externally arranged with the second bevel gear fixedly sleeved, and the first bevel gear and the second bevel gear are meshed with each other.
Preferably, the two sets of pressure components respectively comprise a pressing block, an infrared alignment device, a pressure rod, a pressure sensor and a pressing plate, the infrared alignment device is fixedly installed on one side of the pressing block, one end of the pressure rod is fixedly installed on one side of the pressing block, the other end of the pressure rod is fixedly connected with the pressing plate, and the pressure sensor is installed between the pressure rod and the pressing plate.
Preferably, the other end of the cross beam is fixedly connected with a sliding block, a sliding groove is formed in one side of the detection frame, the sliding block is connected to the inside of the sliding groove in a sliding mode, a through groove is also formed in one side of the detection frame, and the other group of the pressure rods penetrates through the inside of the through groove.
Preferably, a detection groove is formed in the middle position of the top of the detection bottom plate, clamping assemblies are arranged in the detection groove, the clamping assemblies are arranged into two groups, and the two groups of clamping assemblies are respectively arranged on two sides in the detection groove.
Preferably, the two sets of clamping components all include screw rod and clamp splice, screw rod one end is run through in detecting groove and clamp splice fixed connection, screw rod threaded connection is inside detecting the bottom plate.
Preferably, the centre gripping subassembly still includes the handle, it leads to the groove to detect the screw thread seted up on the bottom plate lateral wall, the screw rod other end runs through in the logical groove of screw thread and handle fixed connection.
A method for detecting a chair frame detection device according to the above description, comprising the steps of:
s1, placing the office chair to be detected in the detection groove, and clamping and positioning the office chair by using two groups of clamping components;
s2, positioning through an infrared alignment device, adjusting the positions of the two groups of clamping assemblies and the vertical detection assemblies, and ensuring that a pressing plate of the vertical detection assembly is vertically arranged above the office chair;
s3, positioning through an infrared alignment device, adjusting the positions of the two groups of clamping components and the horizontal detection components, and ensuring that a pressure plate of the horizontal detection components is horizontally arranged on the side face of the office chair;
s4, starting a vertical detection assembly and a horizontal detection assembly to detect the stability of the office chair;
and S5, after the test is finished, adjusting the two groups of clamping assemblies to enable the two groups of clamping assemblies not to clamp the office chair any more, and taking out the office chair.
The invention has the technical effects and advantages that: compared with the prior art, the chair frame detection device and the detection method provided by the invention have the following advantages:
1. the power assembly, the vertical detection assembly and the horizontal detection assembly are matched for use, so that the stability of the office chair in the vertical direction and the horizontal direction can be detected, the acting force of the motor is stable, the screw rod and the screw rod nut are matched, the structure is reasonable, the detection data are standardized, the detection efficiency is high, the accuracy is high, the detection quality is stable, and the phenomena of unstable air pressure, large error and low accuracy of an air cylinder caused by the detection of the air cylinder are avoided;
2. through setting up detection tank and two sets of centre gripping subassemblies cooperation and using, carry out the centre gripping location to the office chair through two sets of centre gripping subassemblies, the detection accuracy nature that has further improved avoids office chair to appear rocking in the testing process, has caused the phenomenon that detection error is big.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a schematic structural view of a front view of the present invention;
FIG. 3 is an enlarged schematic view of FIG. 1 at A;
FIG. 4 is a perspective view of the clamping assembly of the present invention;
FIG. 5 is a schematic structural diagram of the process of the present invention.
In the figure: 1. detecting the bottom plate; 101. a detection tank; 2. a detection frame; 3. a power assembly; 4. a connecting plate; 5. a motor; 6. a connecting shaft; 7. a first bevel gear; 8. a second bevel gear; 9. a rotating shaft assembly; 901. an optical axis; 902. a screw rod; 10. a feed screw nut; 1001. a guide block; 11. a vertical detection assembly; 12. a cross beam; 13. a pressure assembly; 1301. briquetting; 1302. an infrared contraposition device; 1303. a pressure lever; 1304. a pressure sensor; 1305. pressing a plate; 14. a level detection assembly; 1401. a hydraulic cylinder; 15. a clamping assembly; 1501. a screw; 1502. a handle; 1503. and (5) clamping blocks.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a technical scheme as shown in figures 1-5: a chair frame detection device and a detection method comprise a detection bottom plate 1, wherein a detection frame 2 is fixedly arranged at the top of the detection bottom plate 1, a rotating shaft assembly 9 is rotatably connected to one side of the detection frame 2, a power assembly 3 for driving the rotating shaft assembly 9 to rotate is arranged at one side of the top of the detection bottom plate 1, the rotating shaft assembly 9 comprises an optical shaft 901 and a lead screw 902, the top end of the optical shaft 901 is fixedly connected with the bottom end of the lead screw 902, a lead screw nut 10 is connected onto the lead screw 902 in a threaded manner, a guide block 1001 is fixedly sleeved outside the lead screw nut 10, a vertical detection assembly 11 is arranged at one side of the guide block 1001, the vertical detection assembly 11 comprises a cross beam 12 and a pressure assembly 13, one end of the cross beam 12 penetrates through the detection frame 2 to be fixedly connected with the guide block 1001, the other end of the cross, a through groove is also formed in one side of the detection frame 2, the other group of pressure rods 1303 penetrate through the through groove, and a structure that the sliding groove is matched with the sliding block is formed, so that the cross beam 12 can slide more smoothly;
the pressure assemblies 13 are arranged into two groups, one group of pressure assemblies 13 is fixedly arranged at the bottom of the cross beam 12, one side of the top of the detection bottom plate 1 is provided with a horizontal detection assembly 14, the horizontal detection assembly 14 comprises a hydraulic cylinder 1401 and the pressure assemblies 13, the hydraulic cylinder 1401 is fixedly arranged at the top of the detection bottom plate 1, and the other group of pressure assemblies 13 is fixedly arranged at the output rod end of the hydraulic cylinder 1401; the two groups of pressure assemblies 13 respectively comprise a pressing block 1301, an infrared alignment device 1302, a pressure rod 1303, a pressure sensor 1304 and a pressing plate 1305, wherein the infrared alignment device 1302 is fixedly installed on one side of the pressing block 1301, one end of the pressure rod 1303 is fixedly installed on one side of the pressing block 1301, the other end of the pressure rod 1303 is fixedly connected with the pressing plate 1305, the pressure sensor 1304 is installed between the pressure rod 1303 and the pressing plate 1305, the pressing plate 1305 of the vertical detection assembly 11 is vertically arranged above the office chair through the infrared alignment device 1302, and the pressing plate 1305 of the horizontal detection assembly 14 is horizontally arranged on the side face of the office chair;
the power assembly 3 comprises a connecting plate 4, a motor 5 and a connecting shaft 6, the connecting plate 4 is fixedly arranged on one side of the top of the detection bottom plate 1, the connecting plate 4 and the detection bottom plate 1 are vertically arranged, the motor 5 is fixedly arranged on one side of the connecting plate 4, one end of the connecting shaft 6 is fixedly connected with the output shaft end of the motor 5, the power assembly 3 also comprises a first bevel gear 7 and a second bevel gear 8, the first bevel gear 7 is fixedly sleeved on the other end of the connecting shaft 6, the second bevel gear 8 is fixedly sleeved outside the optical axis 901, the first bevel gear 7 and the second bevel gear 8 are mutually meshed and connected, the motor 5 for driving the rotating shaft assembly 9 is started, and the motor 5 works to drive the, thereby driving the first bevel gear 7 to rotate, and the second bevel gear 8 and the optical axis 901 rotate due to the meshed connection between the first bevel gear 7 and the second bevel gear 8; the acting force of the motor 5 is stable, and the lead screw 902 and the lead screw nut 10 are matched, so that the structure is reasonable, the detection data are standardized, the detection efficiency is high, the accuracy is high, the detection quality is stable, and the phenomena of unstable air pressure, large error and low accuracy of an air cylinder caused by air cylinder detection are avoided;
detect 1 top position placed in the middle of the bottom plate and seted up and detect groove 101, detect and be provided with centre gripping subassembly 15 in the groove 101, centre gripping subassembly 15 sets up to two sets of, and two sets of centre gripping subassemblies 15 set up respectively in detecting groove 101 both sides, set up two sets of centre gripping subassemblies 15 and carry out the centre gripping location to the office chair, the detection accuracy nature that has further improved.
The two groups of clamping assemblies 15 respectively comprise a screw 1501 and a clamping block 1503, one end of the screw 1501 penetrates through the detection groove 101 and is fixedly connected with the clamping block 1503, the screw 1501 is in threaded connection with the inside of the detection bottom plate 1, the clamping assembly 15 further comprises a handle 1502, a threaded through groove is formed in the side wall of the detection bottom plate 1, and the other end of the screw 1501 penetrates through the threaded through groove and is fixedly connected with the handle 1502; the handle 1502 is held, the two groups of screw rods 1501 are rotated until the two groups of clamping blocks 1503 are contacted with the chair legs of the office chair, the rotation is stopped, meanwhile, the clamping blocks 1503 limit the chair legs of the office chair, the detection accuracy is further improved, and the phenomenon that the office chair shakes to cause large detection errors in the detection process is avoided.
A method for detecting a chair frame detection device according to the above description, comprising the steps of:
s1, placing the office chair to be detected in the detection groove, and clamping and positioning the office chair by using two groups of clamping components;
s2, positioning through an infrared alignment device, adjusting the positions of the two groups of clamping assemblies and the vertical detection assemblies, and ensuring that a pressing plate of the vertical detection assembly is vertically arranged above the office chair;
s3, positioning through an infrared alignment device, adjusting the positions of the two groups of clamping components and the horizontal detection components, and ensuring that a pressure plate of the horizontal detection components is horizontally arranged on the side face of the office chair;
s4, starting a vertical detection assembly and a horizontal detection assembly to detect the stability of the office chair;
and S5, after the test is finished, adjusting the two groups of clamping assemblies to enable the two groups of clamping assemblies not to clamp the office chair any more, and taking out the office chair.
When the detection device is used, an office chair to be detected is placed in the detection groove 101, the handle 1502 is held, the two groups of screw rods 1501 are rotated until the two groups of clamping blocks 1503 are contacted with chair legs of the office chair, the rotation is stopped, and meanwhile, the clamping blocks 1503 limit the chair legs of the office chair; the infrared alignment device 1302 is set as an infrared laser sighting device, the infrared alignment device 1302 ensures that the pressing plate 1305 of the vertical detection component 11 is vertically arranged above the office chair, the pressing plate 1305 of the horizontal detection component 14 is horizontally arranged on the side surface of the office chair, then, simultaneously, the motor 5 of the driving rotating shaft component 9 is started, the motor 5 works to drive the connecting shaft 6 to rotate, so as to drive the first bevel gear 7 to rotate, because the first bevel gear 7 and the second bevel gear 8 are meshed with each other and connected, the second bevel gear 8 and the optical axis 901 rotate, the lead screw 902 rotates, the lead screw nut 10 drives the guide block 1001 and the crossbeam 12 of the vertical detection component 11 to move downwards until the pressing plate 1305 of the vertical detection component 11 presses the chair seat of the office chair and gradually increases the pressure, the pressure sensor 1304 can timely transmit a pressure data signal to an external control computer, when the pressure data reaches a preset value and the chair seat does not generate abnormal samples, the product is qualified, otherwise, when the pressure data signal does not reach the preset pressure data or the chair seat generates abnormal samples when the pressure data signal reaches the preset pressure data, the product is unqualified and does not pass; remove and start hydraulic cylinder 1401, the back of the chair of office chair is pushed down to the clamp plate 1305 of horizontal detection subassembly 14, and progressively stabilize and increase pressure, pressure sensor 1304 can be in good time with pressure data signal transmission to external control computer, when pressure data reaches preset numerical value and the back of the chair does not produce the abnormal appearance, the product is qualified to pass through, otherwise, when pressure data signal is not to preset pressure data, or the back of the chair produces the abnormal appearance when reaching pressure data, then the product is unqualified, not pass through, because motor 5's effort is comparatively stable, adopt lead screw 902 and screw-nut 10 cooperation again, moreover, the steam generator is rational in infrastructure, the detection data is standardized, and detection efficiency is high, the precision is high, the detection quality is stable, avoid using the cylinder to detect, cause cylinder atmospheric pressure unstable, the error is great, the phenomenon.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (9)
1. A chair frame detection device and a detection method comprise a detection bottom plate (1), and are characterized in that: the detection device is characterized in that a detection frame (2) is fixedly installed at the top of the detection bottom plate (1), a rotating shaft assembly (9) is rotatably connected to one side of the detection frame (2), a power assembly (3) for driving the rotating shaft assembly (9) to rotate is installed at one side of the top of the detection bottom plate (1), the rotating shaft assembly (9) comprises an optical shaft (901) and a lead screw (902), the top end of the optical shaft (901) is fixedly connected with the bottom end of the lead screw (902), a lead screw nut (10) is connected to the lead screw (902) in a threaded manner, a guide block (1001) is fixedly sleeved outside the lead screw nut (10), a vertical detection assembly (11) is arranged at one side of the guide block (1001), the vertical detection assembly (11) comprises a cross beam (12) and a pressure assembly (13), one end of the cross beam (12) penetrates through the detection frame (2) and is fixedly connected with the guide, the detection device is characterized in that the pressure assemblies (13) are arranged into two groups, one group of pressure assemblies (13) are fixedly arranged at the bottom of the cross beam (12), a horizontal detection assembly (14) is arranged on one side of the top of the detection bottom plate (1), the horizontal detection assembly (14) comprises a hydraulic cylinder (1401) and the pressure assemblies (13), the hydraulic cylinder (1401) is connected to the top of the detection bottom plate (1) in a sliding mode, and the other group of pressure assemblies (13) are fixedly arranged at the output rod end of the hydraulic cylinder (1401).
2. The chair frame detection device according to claim 1, wherein: power component (3) are including connecting plate (4), motor (5) and connecting axle (6), connecting plate (4) fixed mounting is in detecting bottom plate (1) top one side, be perpendicular setting between connecting plate (4) and the detection bottom plate (1), motor (5) fixed mounting is in connecting plate (4) one side, connecting axle (6) one end fixed connection is in the output shaft end of motor (5).
3. The chair frame detection device according to claim 2, wherein: the power assembly (3) further comprises a first bevel gear (7) and a second bevel gear (8), the other end of the connecting shaft (6) is fixedly sleeved with the first bevel gear (7), the optical axis (901) is fixedly sleeved with the second bevel gear (8) in an external mode, and the first bevel gear (7) and the second bevel gear (8) are connected in a meshed mode.
4. The chair frame detection device according to claim 1, wherein: two sets of pressure components (13) all include briquetting (1301), infrared aligning device (1302), pressure pole (1303), pressure sensor (1304) and clamp plate (1305), infrared aligning device (1302) fixed mounting is in briquetting (1301) one side, pressure pole (1303) one end fixed mounting is in briquetting (1301) one side, the other end and the clamp plate (1305) fixed connection of pressure pole (1303), pressure sensor (1304) are installed between pressure pole (1303) and clamp plate (1305).
5. The chair frame detection device according to claim 4, wherein: the other end fixedly connected with slider of crossbeam (12), the spout has been seted up to test rack (2) one side, slider sliding connection is inside the spout, logical groove has also been seted up to test rack (2) one side, and another group pressure pole (1303) run through inside leading to the groove.
6. The chair frame detection device according to claim 1, wherein: the detection device is characterized in that a detection groove (101) is formed in the center of the top of the detection bottom plate (1), clamping assemblies (15) are arranged in the detection groove (101), the clamping assemblies (15) are arranged into two groups, and the clamping assemblies (15) are arranged on two sides in the detection groove (101) respectively.
7. The chair frame detection device according to claim 6, wherein: two sets of centre gripping subassembly (15) all include screw rod (1501) and clamp splice (1503), screw rod (1501) one end is run through in detecting groove (101) and clamp splice (1503) fixed connection, screw rod (1501) threaded connection is inside detecting bottom plate (1).
8. The chair frame detection device according to claim 7, wherein: the clamping assembly (15) further comprises a handle (1502), a threaded through groove is formed in the side wall of the detection bottom plate (1), and the other end of the screw rod (1501) penetrates through the threaded through groove and is fixedly connected with the handle (1502).
9. A method for detecting a chair frame detecting device according to any one of claims 1 to 8, comprising the steps of:
s1, placing the office chair to be detected in the detection groove, and clamping and positioning the office chair by using two groups of clamping components;
s2, positioning through an infrared alignment device, adjusting the positions of the two groups of clamping assemblies and the vertical detection assemblies, and ensuring that a pressing plate of the vertical detection assembly is vertically arranged above the office chair;
s3, positioning through an infrared alignment device, adjusting the positions of the two groups of clamping components and the horizontal detection components, and ensuring that a pressure plate of the horizontal detection components is horizontally arranged on the side face of the office chair;
s4, starting a vertical detection assembly and a horizontal detection assembly to detect the stability of the office chair;
and S5, after the test is finished, adjusting the two groups of clamping assemblies to enable the two groups of clamping assemblies not to clamp the office chair any more, and taking out the office chair.
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| CN202110446077.1A CN113125185A (en) | 2021-04-25 | 2021-04-25 | Chair frame detection device and detection method |
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| CN202110446077.1A CN113125185A (en) | 2021-04-25 | 2021-04-25 | Chair frame detection device and detection method |
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