CN215726666U

CN215726666U - Pneumatic executive device for rigidity test

Info

Publication number: CN215726666U
Application number: CN202122234425.7U
Authority: CN
Inventors: 黄为; 吴峻峰
Original assignee: Wuhan Yuanwei Intelligent Technology Co ltd
Current assignee: Wuhan Yuanwei Intelligent Technology Co ltd
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2022-02-01
Anticipated expiration: 2031-09-15

Abstract

The utility model discloses a pneumatic execution device for rigidity test, which comprises an execution cylinder, a rigidity measuring mechanism and a cylinder fixing assembly, wherein the rigidity measuring mechanism is fixedly riveted at the telescopic end of the execution cylinder through a rivet, and the cylinder fixing assembly for fixedly installing the execution cylinder is arranged at the bottom of the execution cylinder. According to the utility model, through the sliding seat, the fixed sleeve and the buffer spring in the fixed sleeve, the action stress instantaneously acting on the pressure sensor is buffered during measurement, so that the extruded stress uniformly acts on the pressure sensor, the pressure sensor is effectively prevented from being damaged due to excessive instantaneous stress and the tested result is influenced, the abutting contacts with different shapes are arranged on the abutting heads to adapt to objects with different shapes, the degree of engagement when the abutting contacts with the objects is promoted, the execution cylinder can rotate to debug the position on the rotating disc, the test requirements of different parts can be conveniently adapted, and the accuracy of the test result is ensured.

Description

Pneumatic executive device for rigidity test

Technical Field

The utility model relates to the technical field of building material testing, in particular to a pneumatic execution device for rigidity testing.

Background

A large amount of steel materials such as various steel bars, steel plates, section steel and the like are generally used in places such as construction sites, the strength of the building steel materials refers to the capacity of resisting breakage of the materials under the action of external force, the strength of the building steel materials is an important index which must be detected when the materials are used, the steel materials can be used after the mechanical properties of the steel materials are qualified, but the existing testing device has the following problems in the use process:

1) adopt the driving piece directly to contradict its pressure sensor on the object that is detected, often easily damaged pressure sensor by the great stress of effect in the twinkling of an eye to great stress in the twinkling of an eye influences the result of test easily.

2) The over-weighing pressure sensor can not be well fit on the surface of an object to be tested, the accuracy of the test is influenced, the device is not convenient to debug again after being fixed and stable in the test process, and the device is not convenient to use and operate.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pneumatic executive device for rigidity test and a pronunciation trainer, and aims to solve the problems that a pressure sensor of the conventional test device provided by the background technology is easy to damage, cannot be well abutted and matched with the surface of a tested object, and is inconvenient to debug after being fixed.

In order to achieve the purpose, the utility model provides the following technical scheme: a pneumatic execution device for rigidity testing comprises an execution cylinder, wherein a rigidity measuring mechanism is fixedly riveted at the telescopic end of the execution cylinder through a rivet, and a cylinder fixing component for fixedly installing the execution cylinder is arranged at the bottom of the execution cylinder;

the rigidity measuring mechanism comprises a pressure sensor for measuring pressure data and a displacement sensor for executing displacement of a telescopic end of the air cylinder, the pressure sensor is connected in the fixed sleeve in a sliding mode through a sliding seat, and a contact seat for fixing a first abutting contact is inserted into a first fixed seat on the other side of the pressure sensor;

the cylinder fixing assembly comprises a rotating disc used for adjusting the execution cylinder and supporting legs used for fixing, a sliding seat used for connecting the execution cylinder is connected in a sliding mode in a second sliding groove formed in the surface of the rotating disc, and the supporting legs are connected to the bottom of a base of the fixed rotating disc in an inserting mode.

In order to buffer the instant stress borne by the pressure sensor, as a preferred choice of the utility model, a first chute used for matching with the first slider on the outer wall of the sliding seat is arranged on the inner wall of the fixed sleeve, one end of the fixed sleeve is in threaded connection with a threaded connection ring at the top of the connection seat, a shaft pin seat used for matching with the telescopic end of the execution cylinder is fixedly connected on the connection seat, a buffer spring is arranged in a cavity in the fixed sleeve, one end of the buffer spring is abutted against the connection seat, the other end of the buffer spring is abutted against the sliding seat, and an insertion groove used for inserting the contact seat is integrally arranged on the first fixing seat fixedly connected with the other side of the pressure sensor on the sliding seat.

In order to stably mount the whole actuating device on a frame body for supporting and fixing, as a preferable mode of the utility model, the threaded rod arranged at the middle position of the rotating disc is connected with a sleeve penetrating through the rotating disc and the base in a sliding mode, the top end of the threaded rod is connected with a limiting hook in a rotating mode, the bottom end of the threaded rod penetrates through the upper thread of the sleeve and is connected with a fastening nut, the second sliding groove in the surface of the rotating disc is connected with the second sliding block in a sliding mode, the top of the sliding seat is fixedly connected with a second fixed seat used for connecting the actuating cylinder, the supporting leg at the bottom of the base is inserted into the insertion hole at the bottom of the base, and the bottom end of the supporting leg is fixedly connected with a connecting foot.

Compared with the prior art, the utility model has the beneficial effects that:

1) through the sliding seat and the fixed sleeve which are arranged in the rigidity measuring mechanism and the buffer spring inside the rigidity measuring mechanism, the action stress acted on the pressure sensor in the moment is buffered when the rigidity measuring mechanism is used for measuring, so that the extruded stress is uniformly acted on the pressure sensor, the phenomenon that the pressure sensor is damaged by overlarge stress in the moment and the tested result is influenced is effectively avoided, and the accuracy of the tested result is ensured.

2) Conflict through the grafting mode that sets up on the rigidity measurement mechanism is contradicted by the test object on, utilize the butt contact that sets up different shapes on the conflict to adapt to the object of different appearances, promote the degree of agreeing with when conflicting with the object, guarantee stable contact, promote the accuracy of test, support leg through on the rolling disc cooperation base is with stable the fixing on supplementary support body of whole device, ensure stable installation and use, and the actuating cylinder can rotate the debugging position on the rolling disc, be convenient for adapt to the test demand at different positions, promote the convenience of using, convenient to use operates.

Drawings

FIG. 1 is a schematic structural diagram of embodiment 1 of the present invention;

fig. 2 is a schematic structural view of a cylinder fixing assembly according to embodiment 1 of the present invention;

fig. 3 is a schematic structural view of a rigidity measuring mechanism according to embodiment 1 of the present invention;

FIG. 4 is a schematic structural view of a contact block in embodiment 2 of the present invention;

fig. 5 is a schematic structural diagram of a contact block in embodiment 3 of the present invention.

In the figure: 1. an actuating cylinder; 2. a stiffness measuring mechanism; 201. a pressure sensor; 202. a sliding seat; 2021. a first slider; 203. fixing a sleeve; 2031. a first chute; 204. a buffer spring; 205. a connecting seat; 2051. a threaded connection ring; 2052. a shaft pin seat; 206. a displacement sensor; 207. a first fixed seat; 2071. inserting grooves; 208. a contact seat; 2081. a first abutment contact; 2082. a second abutment contact; 2083. a third abutment contact; 3. a cylinder fixing assembly; 301. a base; 302. rotating the disc; 3021. a second chute; 303. a slide base; 3031. a second slider; 3032. a second fixed seat; 304. a limiting hook; 3041. a threaded rod; 3042. fastening a nut; 3043. a sleeve; 305. supporting legs; 3051. a connecting pin.

Detailed Description

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 given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-3, a pneumatic actuator for rigidity testing includes an actuating cylinder 1, a rigidity measuring mechanism 2 is riveted to a telescopic end of the actuating cylinder 1 through a rivet, and a cylinder fixing assembly 3 for fixedly mounting the actuating cylinder 1 is disposed at a bottom of the actuating cylinder 1;

wherein the rigidity measuring mechanism 2, the rigidity measuring mechanism 2 includes a pressure sensor 201 for measuring pressure data and a displacement sensor 206 for executing displacement of a telescopic end of the cylinder 1, the pressure sensor 201 is connected in a fixed sleeve 203 through a sliding seat 202 in a sliding manner, a contact seat 208 for fixing a first abutting contact 2081 is inserted in a first fixed seat 207 on the other side of the pressure sensor 201, a first abutting contact 2081 is used for abutting between the pressure sensor 201 and an object to be tested, the pressure sensor 201 is prevented from directly contacting the object to be tested, the arrangement of an inner concave notch on the first abutting contact 2081 is convenient for better fitting with a cylindrical object to be tested, the radian of the inner concave notch is arranged according to the actual radian outside the object to be tested, the influence of external factors on the pressure sensor 201 is reduced, and the sliding seat 202 and the fixed sleeve 203 are mutually matched and slide, ensuring that the pressure sensor 201 slides when subjected to the instant stress, and buffering the influence of the instant stress on the pressure sensor 201;

the cylinder fixing component 3, the cylinder fixing component 3 includes a rotating disc 302 for adjusting the actuating cylinder 1 and supporting legs 305 for fixing, a sliding seat 303 for connecting the actuating cylinder 1 is connected in a sliding way in a second sliding groove 3021 formed in the surface of the rotating disc 302, the supporting legs 305 are inserted into the bottom of a base 301 for fixing the rotating disc 302, the rotating disc 302 can ensure that the actuating cylinder 1 rotates at the top thereof to adjust the position of a telescopic end, the base 301 at the bottom of the rotating disc 302 is matched with the supporting legs 305 to be used together to ensure that the whole device is stably installed and fixed on a supporting frame body for assisting the device to use, and safe use is ensured.

In the embodiment, as shown in fig. 3, a first sliding groove 2031 for matching with the first sliding block 2021 on the outer wall of the sliding seat 202 is formed on the inner wall of the fixing sleeve 203, one end of the fixing sleeve 203 is screwed on the threaded connection ring 2051 on the top of the connection seat 205, a shaft pin seat 2052 for matching with the telescopic end of the actuating cylinder 1 is fixedly connected on the connection seat 205, a buffer spring 204 is installed in the cavity inside the fixing sleeve 203, one end of the buffer spring 204 abuts on the connection seat 205, and the other end abuts on the sliding seat 202, an insertion groove 2071 for inserting the contact seat 208 is integrally formed on the first fixing seat 207 fixedly connected on the other side of the pressure sensor 201 on the sliding seat 202, the buffer spring 204 arranged inside the fixing sleeve 203 ensures that the sliding seat 202 is reset after sliding in the fixing sleeve 203, and ensures that the pressing force can stably and uniformly act on the pressure sensor 201, meanwhile, the shaft pin seat 2052 is also utilized to stably connect the whole rigidity measuring mechanism 2 to the telescopic end of the actuating cylinder 1, so that the stable connection between the shaft pin seat and the actuating cylinder is ensured, the contact seat 208 for abutting against a tested object is installed on the first fixing seat 207 in an inserting manner, the contact seat 208 can be quickly disassembled and assembled, and the replacement and the use are convenient.

In this embodiment, as shown in fig. 2, a threaded rod 3041 disposed at the middle position of the rotating disc 302 is slidably connected to a sleeve 3043 penetrating through the rotating disc 302 and the base 301, the top end of the threaded rod 3041 is rotatably connected with a limit hook 304, the lower end of the threaded rod 3041 is connected with a fastening nut 3042 through the upper thread of the sleeve 3043, a second sliding chute 3021 on the surface of the rotating disc 302 is slidably connected with a second sliding block 3031 at the bottom of the sliding base 303, a second fixed seat 3032 for connecting with the actuating cylinder 1 is fixedly connected to the top of the sliding base 303, a supporting leg 305 at the bottom of the base 301 is inserted into an insertion hole at the bottom of the base 301, a connecting pin 3051 is fixedly connected to the bottom end of the supporting leg 305305, the limit hook 304 is hung on the actuating cylinder 1, the fastening nut 3042 is rotated to drive the threaded rod 3041 to move the limit hook 304 downwards in the sleeve 3043, so as to fix the actuating cylinder 1 on the rotating disc 302, and complete the fixation after the adjustment of the actuating cylinder 1, the second runner 3021 on the turn disc 302 facilitates ensuring that the actuating cylinder 1 can slide on it to adjust the position, while the entire device is stably and fixedly mounted on an auxiliary mount by means of the support legs 305 at the bottom of the base 301.

Specifically, in the using process, the whole device is fixed on a support frame body at the using position by using a connecting foot 3051 on a supporting leg 305 at the bottom of a base 301, an execution cylinder 1 is rotated to a proper position on a rotating disc 302 according to actual requirements, then a contact seat 208 for testing is inserted into a first fixing seat 207, the execution cylinder 1 runs to drive a rigidity measuring mechanism 2 to move and tightly abuts against a tested object, a displacement sensor 206 measures the displacement in the moving process, the pressure sensor 201 and the displacement sensor 206 transmit measured data to a processor at the background together to process the data, and the result is displayed on a display, so that a tester can conveniently check the data.

Example 2

Referring to fig. 4, as another embodiment of the present invention, in the first comparative example, a second abutting contact 2082 is fixedly connected to a side of the contact seat 208 away from the first fixing seat 207, and the second abutting contact 2082 is arranged in an arc shape protruding outward, so as to be better fit to a test object with an arc groove body whose outer portion is concave inward, and to be convenient for performing a rigidity test on the test object with the arc groove body which is concave inward.

Example 3

Referring to fig. 5, as another embodiment of the present invention, in the first comparative example, a third abutting contact 2083 is fixedly connected to a side of the contact seat 208 away from the first fixing seat 207, and the third abutting contact 2083 is disposed in a convex rhombus shape, so as to be better fitted to a test object with an arc groove body whose outer portion is concave inward, and to be convenient for performing a rigidity test on the test object with the concave rhombus groove body.

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 various changes, modifications, equivalents, and improvements may be made without departing from the spirit and scope of the utility model.

Claims

1. A pneumatic executive device for rigidity test is characterized in that: the device comprises an execution cylinder, wherein a rigidity measuring mechanism is fixedly riveted at the telescopic end of the execution cylinder through a rivet, and a cylinder fixing component for fixedly installing the execution cylinder is arranged at the bottom of the execution cylinder;

2. A pneumatic actuator for stiffness testing according to claim 1, wherein: a first sliding groove used for being matched with the first sliding block on the outer wall of the sliding seat is formed in the inner wall of the fixed sleeve, and the first sliding block is connected with the first sliding groove in a sliding mode.

3. A pneumatic actuator for stiffness testing according to claim 2, wherein: one end threaded connection of fixed cover is on the screw thread go-between at connecting seat top, and fixedly connected with is used for cooperating the axle key seat of carrying out the flexible end of cylinder on the connecting seat.

4. A pneumatic actuator for stiffness testing according to claim 1, wherein: and a buffer spring is arranged in the cavity inside the fixed sleeve, one end of the buffer spring is abutted against the connecting seat, and the other end of the buffer spring is abutted against the sliding seat.

5. A pneumatic actuator for stiffness testing according to claim 1, wherein: and the first fixed seat fixedly connected with the other side of the pressure sensor on the sliding seat is integrally provided with an inserting groove for inserting the contact seat.

6. A pneumatic actuator for stiffness testing according to claim 1, wherein: the threaded rod sliding connection who settles in rolling disc intermediate position department is on the sleeve pipe that runs through rolling disc and base, and the top of threaded rod rotates and is connected with spacing hook to threaded rod bottom is passed sheathed tube last threaded connection and is had fastening nut.

7. The pneumatic actuator for rigidity testing according to claim 6, wherein: the top of threaded rod is connected with the lower surface of spacing hook through the bearing frame rotation, and sets up the external screw thread that is used for cooperating fastening nut on the threaded rod.

8. A pneumatic actuator for stiffness testing according to claim 1, wherein: the second sliding groove in the surface of the rotating disc is connected with the second sliding block at the bottom of the sliding seat in a sliding mode, the top of the sliding seat is fixedly connected with a second fixing seat used for being connected with an execution cylinder, the supporting legs at the bottom of the base are inserted into the insertion holes at the bottom of the base, and the bottom ends of the supporting legs are fixedly connected with connecting feet.

9. A pneumatic actuator for stiffness testing according to claim 1, wherein: and one side of the contact seat, which is far away from the first fixed seat, is fixedly connected with a second butting contact.

10. A pneumatic actuator for stiffness testing according to any one of claims 1-9, wherein: and one side of the contact seat, which is far away from the first fixed seat, is fixedly connected with a third butting contact.