CN117288588B - Spring performance detection device for cushion body - Google Patents
Spring performance detection device for cushion body Download PDFInfo
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- CN117288588B CN117288588B CN202311584741.4A CN202311584741A CN117288588B CN 117288588 B CN117288588 B CN 117288588B CN 202311584741 A CN202311584741 A CN 202311584741A CN 117288588 B CN117288588 B CN 117288588B
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- 238000001514 detection method Methods 0.000 title claims abstract description 29
- 238000007906 compression Methods 0.000 claims abstract description 31
- 230000006835 compression Effects 0.000 claims abstract description 28
- 230000001360 synchronised effect Effects 0.000 claims abstract description 19
- 238000005452 bending Methods 0.000 claims abstract description 6
- 238000012669 compression test Methods 0.000 claims abstract description 4
- 238000009864 tensile test Methods 0.000 claims abstract description 4
- 230000001681 protective effect Effects 0.000 claims description 26
- 230000005540 biological transmission Effects 0.000 claims description 23
- 238000001125 extrusion Methods 0.000 claims description 11
- 238000003825 pressing Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 13
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
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- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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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
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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Abstract
The invention discloses a spring performance detection device for a cushion body, which relates to the technical field of spring detection and comprises a C-shaped shell and a lifting compression structure, wherein a protection structure is arranged in the C-shaped shell and is used for breaking and flying protection during a spring tensile test and spring bending limit during the spring compression test; the protection structure comprises two driving belts, a rotating rod, a lifting rotary drum, an upper reciprocating screw rod, an upper end protection sleeve, a synchronous wheel, a lower reciprocating screw rod and a lower end protection sleeve. According to the invention, the protection structure is arranged, so that the lower end protection sleeve and the upper end protection sleeve are moved out when the compression resistance and the tensile resistance of the spring are tested, the periphery of the spring is shielded and protected, the spring is prevented from bending or twisting deflection in the compression resistance testing process, and the accuracy of measurement data is improved; meanwhile, the spring is prevented from being broken in the tensile detection process, other components of the device are damaged due to impact, and the safety coefficient of the detection process is improved.
Description
Technical Field
The invention relates to the technical field of spring detection, in particular to a spring performance detection device for a cushion body.
Background
The cushion body spring is an elastic component which is applied to household articles such as mattresses, sofa cushions and the like and is used for adjusting the elasticity of the cushion body. The spring mainly plays roles of buffering, absorbing shock and impact, storing and outputting energy in the elastic deformation and elastic recovery process of the cushion body. Because this type of spring is directly applied to the life and is concerned with user's safety in utilization and experience impression, consequently need detect main performance indexes such as tensile, the resistance to compression of spring when the production of spring is selected, just can make the pad body that the preparation obtained not only durable, still have suitable elasticity index to promote the use experience of finished product.
When the compression resistance detection is carried out on the spring, the spring is easy to bend and move in the continuous compression process, so that the pressure born by the spring is uneven, and the accuracy of a detection result is affected; in the tensile detection process, the spring is easy to break suddenly due to continuous stretching, and the broken spring can strike other structures of the device, so that the device is damaged, and the detection personnel are injured even more.
Disclosure of Invention
The invention aims at: in order to solve the problems that in the detection process, the detection result is influenced due to the fact that a compression spring is easy to bend and move, and the device is damaged due to breakage caused by the fact that an extension spring is broken, and potential safety hazards are brought, the spring performance detection device for the cushion body is provided.
In order to achieve the above purpose, the present invention provides the following technical solutions: the spring performance detection device for the cushion body comprises a C-shaped shell, wherein a placing groove for placing a detected spring is formed in the bottom surface of the inner side of the C-shaped shell, a lifting compression structure is arranged on the top surface of the inner side of the C-shaped shell, and the lifting compression structure is used for extruding the spring; the lifting compression structure comprises a servo motor fixedly arranged at the top end of the inside of the C-shaped shell, two transmission rods symmetrically connected with the C-shaped shell in a rotating mode, a threaded screw rod fixedly connected with the bottom end of the transmission rod, and a movable plate with the end part in threaded connection with the outer wall of the threaded screw rod, wherein the threaded screw rod is connected with the inside of the bottom end of the C-shaped shell in a rotating mode; the inside of C type shell is provided with protection architecture, protection architecture is used for breaking and collapsing and fly the protection when spring tensile test and carries out the spring bending spacing when spring compression test.
As still further aspects of the invention: the protection structure comprises two driving belts, a rotating rod, a lifting rotary drum, an upper reciprocating screw rod, an upper end protection sleeve, a synchronous wheel, a lower reciprocating screw rod and a lower end protection sleeve; the rotating rod is rotatably connected to the top end of the inner side of the C-shaped shell, and one driving belt is sleeved on the outer side of the bottom end of one driving rod and the outer side of the top end of the rotating rod; the lifting rotary drum is connected to the outer wall of the rotary rod in a sliding manner, the upper reciprocating screw rod is fixedly connected to the bottom end of the lifting rotary drum, and the upper end protecting sleeve is sleeved on the outer wall of the upper reciprocating screw rod and is connected to the inside of the movable plate in a sliding manner; the lower reciprocating screw rod is rotationally connected to the inner bottom surface of the C-shaped shell, the synchronous wheel is fixedly connected to the bottom end of one threaded screw rod and the outer side of the lower reciprocating screw rod, the other transmission belt is sleeved on the outer sides of the two synchronous wheels, and the lower end protective sleeve is sleeved on the outer wall of the lower reciprocating screw rod and is slidably connected to the inner part of the C-shaped shell; the bottom of upper end protective sheath and the top of lower extreme protective sheath protect or spacing through fashioned arc.
As still further aspects of the invention: the lifting compression structure further comprises a synchronous belt, a pressure sensor and an extrusion plate; one end of each synchronous belt is sleeved on the outer wall of the output shaft of the servo motor, the other end of each synchronous belt is sleeved on the outer walls of the tops of the two transmission rods, the pressure sensor is fixedly arranged at the bottom end of the movable plate, and the extruding plate is fixedly connected to the bottom end of the pressure sensor.
As still further aspects of the invention: the top of the placing groove is provided with a fixed plate, the fixed plate is fixedly arranged on the bottom surface of the inner side of the C-shaped shell through a bolt, the length of the fixed plate is smaller than the inner diameter length of the lower end protective sleeve, and the placing groove is consistent with the axis of the extrusion plate; the bottom of the extrusion plate is provided with a spring wire clamping block, the inside of the spring wire clamping block is provided with an inserting hole, and the diameter of the inserting hole is equal to the diameter of a spring wire of a detected spring; the fixed plate, the spring wire clamping block and the jack are matched with each other and used for fixedly mounting the detected spring.
As still further aspects of the invention: an infrared distance meter is arranged on one side of the movable plate and used for measuring the moving length of the movable plate; one end of the C-shaped shell is provided with a controller, and the controller is used for controlling the opening and closing of each electric component in the C-shaped shell; the controller is electrically connected with the servo motor, the pressure sensor and the infrared range finder through signal wires.
As still further aspects of the invention: and an internal thread matched with the thread on the outer wall of the threaded screw rod is formed in the movable plate.
As still further aspects of the invention: the arc plates of the upper end protective sleeve and the lower end protective sleeve are distributed in a staggered mode, and slots matched with the arc plates of the upper end protective sleeve and the lower end protective sleeve are formed in the bottom surface of the movable plate and the inner bottom surface of the C-shaped shell.
As still further aspects of the invention: when the movable plate is positioned at the initial position, the upper end protecting sleeve and the lower end protecting sleeve are respectively positioned at the top of the upper reciprocating screw rod reciprocating groove and the bottom of the lower reciprocating screw rod reciprocating groove, and the number of single-stroke screw thread turns of the upper reciprocating screw rod and the lower reciprocating screw rod is larger than half of the total screw thread turns of the screw thread screw rod.
As still further aspects of the invention: the bottom of dwang is located the inboard shaping of lift rotary drum and has spacing slider, the inboard shaping of lift rotary drum has the spacing spout that supplies spacing slider to slide from top to bottom, the length of dwang bottom to the inboard bottom surface of lift rotary drum is greater than the distance length that the fly leaf moved when being stretched limit length by the test spring.
As still further aspects of the invention: when the movable plate is in the initial position, the length of the distance between the bottom surface of the extrusion plate and the inner bottom surface of the C-shaped shell is equal to the height of the detected spring, and the arc-shaped plate end surfaces of the upper end protective sleeve and the lower end protective sleeve are respectively kept flush with the bottom surface of the movable plate and the inner bottom surface of the C-shaped shell.
Compared with the prior art, the invention has the beneficial effects that:
through setting up the protective structure, when carrying out resistance to compression and tensile inspection to the spring, its lower extreme protective sheath, upper end protective sheath all can shift out, shelter from, protect the periphery of spring in this way to avoid the spring to take place to turn around or torsion skew in resistance to compression testing process, improve the accuracy of measured data; meanwhile, the spring is prevented from being broken in the tensile detection process, other components of the device are damaged due to impact, and the safety coefficient of the detection process is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the C-shaped housing of the present invention;
FIG. 3 is a schematic view of the device of the present invention after removal of the movable plate;
FIG. 4 is a schematic view showing the internal structure of the C-shaped housing of the present invention;
FIG. 5 is a schematic diagram of the connection structure of the servo motor, the transmission rod, the threaded screw rod and the movable plate of the lifting compression structure of the invention;
FIG. 6 is a schematic structural view of the protection structure of the present invention;
fig. 7 is a schematic structural view of the movable plate of the present invention.
In the figure: 1. a C-shaped housing; 2. lifting and compressing structure; 201. a servo motor; 202. a transmission rod; 203. a synchronous belt; 204. a threaded screw rod; 205. a movable plate; 206. a pressure sensor; 207. an extrusion plate; 3. a placement groove; 4. a protective structure; 401. a transmission belt; 402. a rotating lever; 403. lifting the rotary drum; 404. a reciprocating screw rod is arranged on the upper part; 405. an upper protective sleeve; 406. a synchronizing wheel; 407. a lower reciprocating screw rod; 408. a lower end protective sleeve; 5. a fixing plate; 6. a spring wire clamping block; 7. a jack; 8. an infrared range finder; 9. and a controller.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "configured" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. Hereinafter, an embodiment of the present invention will be described in accordance with its entire structure.
Referring to fig. 1 to 7, in an embodiment of the present invention, a device for detecting performance of a spring for a cushion body includes a C-shaped housing 1, a placement groove 3 for placing a detected spring is provided on an inner bottom surface of the C-shaped housing 1, and a lifting compression structure 2 is provided on an inner top surface of the C-shaped housing 1, where the lifting compression structure 2 is used for extruding or stretching the spring.
The lifting compression structure 2 comprises a servo motor 201 fixedly arranged at the top end of the inside of the C-shaped shell 1, two transmission rods 202 symmetrically connected to the C-shaped shell 1 in a rotating mode, a threaded screw rod 204 fixedly connected to the bottom end of the transmission rods 202, a movable plate 205 with the end portion in threaded connection with the outer wall of the threaded screw rod 204, the threaded screw rod 204 is connected to the inside of the bottom end of the C-shaped shell 1 in a rotating mode, and internal threads matched with the threads of the outer wall of the threaded screw rod 204 are formed in the movable plate 205.
The inside of C shell 1 is provided with protection architecture 4, and protection architecture 4 is used for breaking and collapsing protection when spring tensile test and carries out the spring bending spacing when spring compression test.
The protection structure 4 comprises two driving belts 401, a rotating rod 402, a lifting rotary drum 403, an upper reciprocating screw rod 404, an upper end protection sleeve 405, a synchronizing wheel 406, a lower reciprocating screw rod 407 and a lower end protection sleeve 408; the rotating rod 402 is rotatably connected to the top end of the inner side of the C-shaped shell 1, and a transmission belt 401 is sleeved outside the bottom end of one transmission rod 202 and outside the top end of the rotating rod 402; the lifting rotary drum 403 is slidably connected to the outer wall of the rotary rod 402, the upper reciprocating screw rod 404 is fixedly connected to the bottom end of the lifting rotary drum 403, and the upper end protecting sleeve 405 is sleeved on the outer wall of the upper reciprocating screw rod 404 and is slidably connected to the inside of the movable plate 205; the lower reciprocating screw rod 407 is rotatably connected to the inner bottom surface of the C-shaped shell 1, the synchronizing wheel 406 is fixedly connected to the bottom end of one threaded screw rod 204 and the outer side of the lower reciprocating screw rod 407, the other transmission belt 401 is sleeved on the outer sides of the two synchronizing wheels 406, and the lower end protection sleeve 408 is sleeved on the outer wall of the lower reciprocating screw rod 407 and is slidably connected to the inner part of the C-shaped shell 1.
The bottom of the upper protective sheath 405 and the top of the lower protective sheath 408 are protected or limited by the molded arcuate plate.
The lifting compression structure 2 further comprises a synchronous belt 203, a pressure sensor 206 and a squeeze plate 207; one end of the two synchronous belts 203 is sleeved on the outer wall of the output shaft of the servo motor 201, the other end of the two synchronous belts are sleeved on the outer walls of the top ends of the two transmission rods 202 respectively, the pressure sensor 206 is fixedly arranged at the bottom end of the movable plate 205, and the extrusion plate 207 is fixedly connected to the bottom end of the pressure sensor 206.
The top of standing groove 3 is provided with fixed plate 5, and fixed plate 5 passes through the inboard bottom surface of bolt fixed mounting at C type shell 1, and the length of fixed plate 5 is less than the internal diameter length of lower extreme protective sheath 408, and standing groove 3 is unanimous with the axle center of stripper plate 207.
The spring wire fixture block 6 is installed to the bottom of stripper plate 207, and jack 7 has been seted up to the inside of spring wire fixture block 6, and the diameter of jack 7 equals the spring wire diameter of spring being detected. The fixing plate 5, the spring wire clamping block 6 and the insertion hole 7 are matched with each other to fixedly install the spring to be detected.
An infrared distance meter 8 is installed on one side of the movable plate 205, and the infrared distance meter 8 is used for measuring the moving length of the movable plate; one end of the C-shaped shell 1 is provided with a controller 9, and the controller 9 is used for controlling the opening and closing of each electric component in the C-shaped shell 1. The controller 9 is electrically connected with the servo motor 201, the pressure sensor 206 and the infrared range finder 8 through signal lines.
When the movable plate 205 is at the initial position, the distance between the bottom surface of the pressing plate 207 and the inner bottom surface of the C-shaped casing 1 is equal to the height of the detected spring, and the arc-shaped plate end surfaces of the upper end protecting sleeve 405 and the lower end protecting sleeve 408 are respectively kept flush with the bottom surface of the movable plate 205 and the inner bottom surface of the C-shaped casing 1.
In this embodiment: when the pressing plate 207 is located at the highest position, the distance between the bottom surface of the pressing plate 207 and the top surface of the placement table 3 is longer than the limit length of the spring tension to be detected. When the device detects the performance of the spring for the cushion body, the spring wire at the top end of the detected spring is inserted into the inner jack of the spring wire clamping block 6, and the detected spring is rotated to enable the spring wire at the top end of the detected spring to be in close contact with the bottom surface of the extrusion plate 207; through rotatory bolt, make fixed plate 5 become flexible, place the bottom of being detected the spring behind the inside of standing groove 3, rotatory bolt makes fixed plate 5 will be detected the spring fixed to it is fixed to accomplish the both ends of being detected the spring.
When the compression resistance is detected, the servo motor 201 is started by the controller 9, so that the output shaft of the servo motor 201 drives the two synchronous belts 203 to rotate, the synchronous belts 203 drive the transmission rod 202 to rotate, the threaded screw rod 204 connected with the bottom end of the transmission rod 202 rotates, the movable plate 205 is driven to move downwards, and the extrusion plate 207 is driven to move downwards.
In this process, the transmission rod 202 drives the rotation rod 402 and the lower reciprocating screw 407 to rotate respectively through the transmission of the two transmission belts 401, wherein the rotation rod 402 drives the lifting rotary drum 403 to rotate, and the lifting rotary drum 403 drives the upper reciprocating screw 404 to rotate, so that the upper end protecting sleeve 405 moves downwards and protrudes below the movable plate 205.
The lower reciprocating screw 407 rotates to drive the lower end protecting sleeve 408 to move upwards, so that when the spring is extruded and detected, the upper end protecting sleeve 405 and the lower end protecting sleeve 408 move out to limit the periphery of the spring, thereby avoiding the deviation of the detected spring in the compression process and effectively improving the detection accuracy (it is required to supplement the explanation that the upper end protecting sleeve and the lower end protecting sleeve are wrapped by the detected spring when the extruding plate 207 compresses the detected spring to a set position).
Then the servo motor 201 rotates reversely to drive the extrusion plate 207 to move upwards, so that the detected spring is reset, the compression process is carried out for a plurality of times, and the collected data are transmitted to the controller 9 for processing through the pressure sensor 206 and the infrared range finder 8, so that the compression resistance data of the spring are obtained.
When the tensile property is detected, the servo motor 201 is started by the controller 9 to move the extruding plate 207 upwards (the rotation direction of the servo motor 201, the threaded screw rod 204, the upper reciprocating screw rod 404 and the lower reciprocating screw rod 407 is opposite to the rotation direction during the compression resistance detection), the spring to be detected is pulled by the spring wire clamping block 6, and in the process, the upper end protecting sleeve 405 and the lower end protecting sleeve 408 are at the initial positions, so that when the upper reciprocating screw rod 404 and the lower reciprocating screw rod 407 reversely rotate, the operation states of the upper end protecting sleeve 405 and the lower end protecting sleeve 408 are the same as the operation states during the compression resistance detection, namely, the upper end protecting sleeve 405 moves downwards and the lower end protecting sleeve 408 moves upwards, so that the periphery of the spring to be detected can be shielded, and the broken part of the spring to be detected is prevented from damaging other components in the device.
Through the structure, the compression resistance and the tensile property of the spring can be detected, and meanwhile, the bending displacement of the spring in the compression resistance detection process is avoided through the protection effect of the upper end protection sleeve 405 and the lower end protection sleeve 408, so that the accuracy of measurement data is improved; and the damage or injury to detection personnel of other components of the device caused by the breakage of the spring in the tensile detection process can be avoided.
Referring to fig. 4 to 7, the arc plates of the upper protective sleeve 405 and the lower protective sleeve 408 are distributed in a staggered manner, and slots matching with the arc plates of the upper protective sleeve 405 and the lower protective sleeve 408 are formed on the bottom surface of the movable plate 205 and the inner bottom surface of the C-shaped casing 1.
In this embodiment: when the structure detects compression resistance, the upper end protecting sleeve 405 and the lower end protecting sleeve 408 can do reciprocating movement without mutual interference, so that the detected spring is limited.
Referring to fig. 5 to 7, when the movable plate 205 is at the initial position, the upper end protecting sleeve 405 and the lower end protecting sleeve 408 are respectively positioned at the top of the reciprocating groove of the upper reciprocating screw rod 404 and the bottom of the reciprocating groove of the lower reciprocating screw rod 407, and the number of single-stroke screw thread turns of the upper reciprocating screw rod 404 and the lower reciprocating screw rod 407 is greater than half of the total screw thread turns of the screw thread screw rod 204.
In this embodiment: with this structure, when the movable plate 205 moves down to the lowest end or up to the topmost end from the initial position, the upper end protecting sleeve 405 and the lower end protecting sleeve 408 do not move to the lowest end of the upper reciprocating screw 404 and the topmost end of the lower reciprocating screw 407, i.e. the upper end protecting sleeve 405 and the lower end protecting sleeve 408 remain in a unidirectional movement state during the upward or downward movement of the movable plate 205.
Referring to fig. 4 to 7, a limit sliding block is formed at the bottom of the rotating rod 402 on the inner side of the lifting drum 403, a limit sliding groove for the limit sliding block to slide up and down is formed at the inner side of the lifting drum 403, and the length from the bottom end of the rotating rod 402 to the bottom surface of the inner side of the lifting drum 403 is greater than the moving distance of the movable plate 205 when the detected spring stretches to the limit length.
In this embodiment: through the mutually supporting of spacing spout and spacing slider, at the in-process that lift rotary drum 403 reciprocated along with fly leaf 205, dwang 402 can drive lift rotary drum 403 and carry out synchronous rotation, and the lift stroke that lift rotary drum 403 provided can satisfy the detection stroke change by the detection spring.
The foregoing description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical solution of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (9)
1. The utility model provides a spring performance detection device for pad body, includes C type shell (1), standing groove (3) that are used for placing the spring that detects are offered to the inboard bottom surface of C type shell (1), its characterized in that, the inside top surface of C type shell (1) is provided with lift compression structure (2), lift compression structure (2) are used for extrudeing the spring; the lifting compression structure (2) comprises a servo motor (201) fixedly arranged at the top end of the inside of the C-shaped shell (1), two transmission rods (202) symmetrically connected with the C-shaped shell (1) in a rotating mode, a threaded screw rod (204) fixedly connected with the bottom end of the transmission rod (202), and a movable plate (205) with the end portion in threaded connection with the outer wall of the threaded screw rod (204), wherein the threaded screw rod (204) is connected with the inside of the bottom end of the C-shaped shell (1) in a rotating mode; the C-shaped shell (1) is internally provided with a protection structure (4), and the protection structure (4) is used for carrying out fracture and collapse protection during a spring tensile test and carrying out spring bending limit during a spring compression test;
the protection structure (4) comprises two transmission belts (401), a rotating rod (402), a lifting rotary drum (403), an upper reciprocating screw rod (404), an upper end protection sleeve (405), a synchronizing wheel (406), a lower reciprocating screw rod (407) and a lower end protection sleeve (408); the rotating rod (402) is rotatably connected to the top end of the inner side of the C-shaped shell (1), and one driving belt (401) is sleeved on the outer side of the bottom end of one driving rod (202) and the outer side of the top end of the rotating rod (402); the lifting rotary cylinder (403) is connected to the outer wall of the rotary rod (402) in a sliding manner, the upper reciprocating screw rod (404) is fixedly connected to the bottom end of the lifting rotary cylinder (403), and the upper end protecting sleeve (405) is sleeved on the outer wall of the upper reciprocating screw rod (404) and is connected to the inside of the movable plate (205) in a sliding manner; the lower reciprocating screw rods (407) are rotatably connected to the inner bottom surface of the C-shaped shell (1), the synchronous wheels (406) are fixedly connected to the bottom end of one threaded screw rod (204) and the outer side of the lower reciprocating screw rod (407), the other transmission belt (401) is sleeved on the outer sides of the two synchronous wheels (406), and the lower end protection sleeve (408) is sleeved on the outer wall of the lower reciprocating screw rod (407) and is slidably connected to the inner part of the C-shaped shell (1); the bottom of upper end protective sheath (405) and the top of lower end protective sheath (408) are protected or spacing through fashioned arc.
2. The spring performance detection device for a cushion body according to claim 1, wherein the lifting compression structure (2) further comprises a synchronous belt (203), a pressure sensor (206) and a squeeze plate (207); one end of each of the two synchronous belts (203) is sleeved on the outer wall of the output shaft of the servo motor (201) and the other end of each of the two synchronous belts is sleeved on the outer walls of the tops of the two transmission rods (202), the pressure sensor (206) is fixedly arranged at the bottom end of the movable plate (205), and the extrusion plate (207) is fixedly connected to the bottom end of the pressure sensor (206).
3. The device for detecting the performance of the cushion body spring according to claim 2, wherein a fixing plate (5) is arranged at the top of the placing groove (3), the fixing plate (5) is fixedly arranged on the inner bottom surface of the C-shaped shell (1) through bolts, the length of the fixing plate (5) is smaller than the inner diameter length of the lower end protective sleeve (408), and the placing groove (3) is consistent with the axle center of the extruding plate (207); a spring wire clamping block (6) is arranged at the bottom of the extrusion plate (207), an inserting hole (7) is formed in the spring wire clamping block (6), and the diameter of the inserting hole (7) is equal to that of a spring wire of a detected spring; the fixing plate (5), the spring wire clamping block (6) and the jack (7) are matched with each other and used for fixedly mounting the detected spring.
4. The device for detecting the performance of the spring for the cushion body according to claim 1, wherein an infrared range finder (8) is arranged on one side of the movable plate (205), and the infrared range finder (8) is used for measuring the moving length of the movable plate; one end of the C-shaped shell (1) is provided with a controller (9), and the controller (9) is used for controlling the opening and closing of each electric component in the C-shaped shell (1); the controller (9) is electrically connected with the servo motor (201), the pressure sensor (206) and the infrared range finder (8) through signal lines.
5. The device for detecting the performance of the spring for the cushion body according to claim 1, wherein the movable plate (205) is internally formed with an internal thread matched with the external wall thread of the threaded screw rod (204).
6. The device for detecting the performance of the cushion body spring according to claim 1, wherein the arc plates of the upper end protection sleeve (405) and the lower end protection sleeve (408) are distributed in a staggered manner, and slots matched with the arc plates of the upper end protection sleeve (405) and the lower end protection sleeve (408) are formed on the bottom surface of the movable plate (205) and the inner bottom surface of the C-shaped shell (1).
7. The device for detecting the performance of the cushion spring according to claim 1, wherein when the movable plate (205) is located at the initial position, the upper end protecting sleeve (405) and the lower end protecting sleeve (408) are respectively located at the top of the upper reciprocating screw (404) reciprocating groove and the bottom of the lower reciprocating screw (407) reciprocating groove, and the number of single-stroke screw thread turns of the upper reciprocating screw (404) and the lower reciprocating screw (407) is greater than half of the total screw thread turns of the screw thread screws (204).
8. The device for detecting the performance of the cushion spring according to claim 1, wherein the bottom of the rotating rod (402) is located inside the lifting rotary drum (403) and is provided with a limiting sliding block, the inside of the lifting rotary drum (403) is provided with a limiting sliding groove for the limiting sliding block to slide up and down, and the length from the bottom end of the rotating rod (402) to the bottom surface of the inside of the lifting rotary drum (403) is greater than the moving distance length of the movable plate (205) when the detected spring stretches to the limiting length.
9. The spring performance detection device for a cushion body according to claim 7, wherein when the movable plate (205) is in the initial position, the distance between the bottom surface of the pressing plate (207) and the inner bottom surface of the C-shaped housing (1) is equal to the height of the detected spring, and the arc plate end surfaces of the upper end protection sleeve (405) and the lower end protection sleeve (408) are respectively kept flush with the bottom surface of the movable plate (205) and the inner bottom surface of the C-shaped housing (1).
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| CN117760669B (en) * | 2024-02-20 | 2024-05-28 | 厦门立洲精密科技股份有限公司 | Detection device for high-strength spring elastic coefficient |
| CN118392425B (en) * | 2024-06-28 | 2024-09-24 | 厦门立洲精密科技股份有限公司 | Spring fixing seat of fine-tuning spring tension detection device |
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