CN218725962U

CN218725962U - Quick clamping and positioning device for extensometer

Info

Publication number: CN218725962U
Application number: CN202222870490.3U
Authority: CN
Inventors: 刘小波; 刘建立; 廖国新; 仲光楠; 许文帅
Original assignee: Lianhengguangke Suzhou Intelligent Technology Co ltd
Current assignee: Lianhengguangke Suzhou Intelligent Technology Co ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-03-24
Anticipated expiration: 2032-10-28

Abstract

The application provides a rapid clamping and positioning device for an extensometer, and belongs to the technical field of extensometer tooling. The rapid clamping and positioning device for the extensometer comprises a lifting assembly and a turnover assembly. The lifting assembly comprises a mounting seat and a lifting seat, the lifting seat is arranged on the mounting seat, the overturning assembly comprises a rotating frame, a supporting rod, a center post and a holder, the rotating frame is rotatably connected with the lifting seat, the rotating frame and the holder are fixedly connected with a pair of the supporting rod, two pairs of the supporting rod are movably inserted into the center post, and two pairs of the supporting rod are vertically arranged. In this application, lifting unit utilizes the direct independent altitude mixture control that carries on of lift seat, and the upset subassembly utilizes the branch pole to adjust the extensometer in the position of horizontal direction to the grafting degree of center pillar, recycles the deflection of revolving rack can be quick be close to the extensometer and leave the test body, can not influence the location coordinate, and overall structure is light simple, and the extensometer of being convenient for uses.

Description

Extensometer quick clamping positioner

Technical Field

The application relates to the technical field of extensometer tooling, in particular to a rapid clamping and positioning device for an extensometer.

Background

The low-cycle fatigue test mostly adopts strain control, the height and the angle of the extensometer are required to be accurately determined, the controlled displacement is directly related to the length of a gauge length, but generally does not exceed 0.1mm, how the extensometer is tightly attached to a test piece, and the more accurate realization of the strain control is a crucial link in the low-cycle fatigue test. In the test process, the extensometer needs to be fixed on a testing machine in advance through the supporting device, and then the testing end of the extensometer is clamped on a testing body, so that the conventional supporting device is inconvenient to adjust.

To this end, chinese patent application No. CN201620732334.2 discloses a device for fixing extensometer, this scheme mainly adopts the magnetic base to fix the whole device on ferromagnetic objects, and then realizes the adjustment of the height and angle of the extensometer by adjusting the height of the wing-shaped fastener and rotating the diagonal rod, thereby realizing the accurate fixation of the extensometer, improving the measurement precision of the test, having the advantages of simple structure, convenient assembly, and accurate positioning, and being capable of realizing the fixation of extensometers of different types.

However, in the process of implementing the technical solution in the embodiment of the present application, the inventors of the present application find that the above-mentioned technology has at least the following technical problems:

above-mentioned scheme also is the fixed mode of present commonly used extensometer, but the regulation of this type of mode every time all can influence the position of extensometer in the space, can influence the horizontally coordinate when adjusting the height promptly, it is comparatively troublesome to adjust, and when using at every turn with use the back, all need loosen magnetic base or loosen adjusting screw, so that the extensometer leaves the test body, just so disturbed original location, need relocate when using again, just can make the accurate clamping of extensometer on the test body.

SUMMERY OF THE UTILITY MODEL

In order to make up for the above deficiencies, the application provides a rapid clamping and positioning device for an extensometer, aiming at improving the problems mentioned in the background art.

The application provides a rapid clamping and positioning device for an extensometer, which comprises a lifting assembly and a turnover assembly.

The lifting assembly comprises a mounting seat and a lifting seat, the lifting seat is arranged on the mounting seat, the overturning assembly comprises a rotating frame, a supporting rod, a center post and a holder, the rotating frame is rotatably connected with the lifting seat, the rotating frame and the holder are fixedly connected with a pair of the supporting rod, two pairs of the supporting rod are movably inserted into the center post, and two pairs of the supporting rod are vertically arranged.

Furthermore, the mounting base comprises a base and a guide rail, and the guide rail is fixedly connected with two ends of the base.

Furthermore, the lifting seat comprises a screw rod and a screw block, the screw block is slidably connected with the inner wall of the base, the screw rod is rotatably connected with the base, and the screw rod is in threaded connection with the screw block.

Furthermore, a hand wheel is fixedly connected to the top end of the screw rod.

Furthermore, the lifting seat further comprises a sliding block, the sliding block is connected with the guide rail in a sliding mode, and the sliding block is fixedly connected with the screw block.

Furthermore, the rotating frame comprises a rod frame and a screw, the rod frame is rotatably connected with the sliding block, and the screw penetrates through and is screwed with the rod frame.

Furthermore, a taper hole matched with the screw is formed in the sliding block.

Furthermore, a supporting block is fixedly connected between each pair of the supporting rods.

Compared with the prior art, the beneficial effect of this application: lifting unit utilizes the direct independent altitude mixture control that carries on of lift seat, and the upset subassembly utilizes the fulcrum bar to adjust the extensometer in the position of horizontal direction to the grafting degree of center pillar, and the deflection of recycling revolving rack can be quick be close to the extensometer and leave the test body, can not influence the location coordinate, and overall structure is light simple, and the extensometer of being convenient for uses.

Drawings

In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a schematic structural view of a rapid clamping and positioning device for an extensometer provided by an embodiment of the application;

FIG. 2 is a schematic structural diagram of a lift assembly according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a flip assembly according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a connection relationship between a slider and a screw block according to an embodiment of the present application.

In the figure: 100-a lifting assembly; 110-a mount; 111-a base; 112-a guide rail; 120-a lifting seat; 121-a screw rod; 122-a screw block; 123-a handwheel; 124-a slide block; 200-a flip assembly; 210-a rotating frame; 211-pole frame; 212-a screw; 220-a strut; 230-a center pillar; 240-tripod head; 250-supporting block.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

Referring to fig. 1, the present application provides a rapid mounting and positioning device for an extensometer, which includes a lifting assembly 100 and a turning assembly 200.

Wherein, lifting unit 100 utilizes the direct independent altitude mixture control that carries on of lift seat 120, and upset subassembly 200 utilizes branch 220 to adjust the extensometer in the position of horizontal direction to the grafting degree of middle post 230, recycles the deflection of revolving rack 210 and can be quick be close to the extensometer and leave the test body, can not influence the location coordinate, and overall structure is light simple, and the extensometer of being convenient for uses.

Referring to fig. 1-4, the lifting assembly 100 includes a mounting base 110 and a lifting base 120, the lifting base 120 is disposed on the mounting base 110, the turning assembly 200 includes a rotating frame 210, a supporting rod 220, a center post 230 and a pan-tilt 240, the rotating frame 210 is rotatably connected to the lifting base 120, a pair of supporting rods 220 are fixedly connected to the rotating frame 210 and the pan-tilt 240, two pairs of supporting rods 220 are movably inserted into the center post 230, and two pairs of supporting rods 220 are vertically disposed. Here, the mounting base 110 is installed on an external testing machine, the extensometer is installed on the cloud deck 240, the height of the extensometer can be adjusted through the lifting base 120, the plugging degree of two pairs of mutually perpendicular supporting rods 220 and the central column 230 is adjusted, the position of the extensometer in the horizontal direction is adjusted, thereby the extensometer can be conveniently and quickly adjusted in the previous position, when in use, only the rotating frame 210 needs to be rotated to move the extensometer to a tested object, it needs to be explained that, when testing different structures on the testing machine, the change in the horizontal direction is very small, and the change in the height range is large, therefore, the height of the extensometer can be directly adjusted through the lifting base 120, which is convenient and fast, in conclusion, the lifting assembly 100 utilizes the lifting base 120 to directly and independently adjust the height, the overturning assembly 200 utilizes the plugging degree of the supporting rods 220 to the central column 230 to adjust the position of the extensometer in the horizontal direction, and then utilizes the deflection of the rotating frame 210 to quickly approach and leave a testing body, the positioning coordinate cannot be influenced, the whole structure is light and simple, and convenient for the use of the extensometer.

Referring to fig. 2, the mounting base 110 includes a base 111 and a guide rail 112, and the guide rail 112 is fixedly connected to two ends of the base 111. Here, the base 111 is mounted on the testing machine, and the guide rail 112 is used to provide a moving track restriction for the elevating base 120.

Referring to fig. 2-3, the lifting base 120 includes a screw rod 121 and a screw block 122, the screw block 122 is slidably connected to the inner wall of the base 111, the screw rod 121 is rotatably connected to the base 111, and the screw rod 121 is screwed to the screw block 122. The top end of the screw rod 121 is fixedly connected with a hand wheel 123. The lifting seat 120 further comprises a sliding block 124, the sliding block 124 is connected with the guide rail 112 in a sliding manner, and the sliding block 124 is fixedly connected with the screw block 122. Here, the lead screw 121 is rotated by the hand wheel 123, so as to drive the screw block 122 to move up and down, the screw block 122 further drives the outer slide block 124 to move up and down, and the slide block 124 obtains a stable moving track through the guide rail 112.

Referring to fig. 1-4, the rotating frame 210 includes a rod frame 211 and a screw 212, the rod frame 211 is rotatably connected to the sliding block 124, and the screw 212 is screwed through the rod frame 211. The sliding block 124 is provided with a taper hole matched with the screw 212. Here, when the bar frame 211 rotates, in the taper hole that corresponds through screw 212 screw in, carry out position locking, the taper hole then is favorable to closely matching with screw 212 point, prevents that the extensometer from rocking, and in this embodiment, the taper hole is provided with threely, corresponds 0 degree respectively, 90 degrees and 180 degrees, and the revolving rack 210 location that deflects fast of being convenient for, and screw 212 head is provided with plastics and screws up the cap, is convenient for hand and twists the operation.

Referring to fig. 1-4, a support block 250 is fixedly connected between each pair of support rods 220. Here, the supporting block 250 is provided at the middle position of each pair of the supporting rods 220 to increase the strength of the supporting rods 220 and provide a stable support for the extensometer, and in this embodiment, all the structures are formed in such a manner that the structure itself is slit and opened for the connection and fixation of the supporting rods 220, the supporting rods 220 are inserted and then the slits are tightly closed by the screws 212 to clamp the supporting rods 220, so that the insertion depth of the supporting rods 220 and the center posts 230 can be freely adjusted, and the outer ends of the supporting rods 220 are provided with stoppers to prevent the supporting rods 220 from being inadvertently separated from the center posts 230 during the adjustment.

The working principle of the rapid clamping and positioning device for the extensometer is as follows: the mounting seat 110 is mounted on an external testing machine, the extensometer is mounted on a holder 240, a lead screw 121 is rotated through a hand wheel 123, and then a screw block 122 is driven to move up and down, the screw block 122 drives a slider 124 on the outer side to move up and down again, so as to adjust the height of the extensometer, in the embodiment, all structures are fixed to the connection of a support rod 220, the structure is slotted and perforated, the support rod 220 is inserted, then a bolt 212 is utilized to be slotted tightly and further clamp the support rod 220, therefore, the insertion depth of the support rod 220 and a center column 230 can be adjusted freely, so as to adjust the position of the extensometer in the horizontal direction, therefore, the extensometer can be adjusted in the previous position conveniently, when in use, only the bolt 212 needs to be loosened to rotate a rotating frame 210 to move the extensometer to a tested object, then the bolt 212 is in the conical hole, so that the positioning can be performed quickly, when different structures are tested on the testing machine, the horizontal range is changed very little, and the change is large in the height range, so that the extensometer can be adjusted directly through the lifting seat 120, the height of the extensometer can be adjusted directly, the height of the extensometer can be adjusted conveniently, and the integral, the extensometer can be adjusted easily and the height of the test object can be adjusted by using the lifting seat 120, and the extensometer can be adjusted easily, and the height of the test object can be adjusted easily, and the extensometer can be adjusted by using the lifting seat 120, and the height of the extensometer can be adjusted easily, and the height of the height adjusting device can be adjusted by simple and the height adjusting device, and the height adjusting device can be adjusted by using a simple plug-positioning device.

It should be noted that the specific model specifications of the guide rail 112, the screw rod 121, the hand wheel 123, the support rod 220 and the screw 212 need to be determined by type selection according to the actual specification of the device, and the specific type selection calculation method adopts the prior art, so detailed description is omitted.

The above embodiments are merely examples of the present application and are not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. The rapid clamping and positioning device for the extensometer is characterized by comprising

The lifting assembly (100) comprises a mounting base (110) and a lifting base (120), and the lifting base (120) is arranged on the mounting base (110);

upset subassembly (200), upset subassembly (200) including revolving rack (210), branch (220), center pillar (230) and cloud platform (240), revolving rack (210) with lift seat (120) rotate to be connected, revolving rack (210) with all fixedly connected with on cloud platform (240) is a pair of branch (220), two pairs branch (220) activity peg graft in center pillar (230), two pairs branch (220) set up perpendicularly.

2. The extensometer quick-clamping positioning device of claim 1, wherein the mounting seat (110) comprises a base (111) and a guide rail (112), and the guide rail (112) is fixedly connected with two ends of the base (111).

3. The extensometer quick-clamping positioning device according to claim 2, characterized in that the lifting seat (120) comprises a screw rod (121) and a screw block (122), the screw block (122) is connected with the inner wall of the base (111) in a sliding manner, the screw rod (121) is connected with the base (111) in a rotating manner, and the screw rod (121) is in threaded connection with the screw block (122).

4. The extensometer quick-clamping and positioning device of claim 3 wherein a hand wheel (123) is fixedly connected to the top end of the screw rod (121).

5. The extensometer quick-clamping positioning device of claim 4 wherein the lifting seat (120) further includes a sliding block (124), the sliding block (124) is slidably connected with the guide rail (112), and the sliding block (124) is fixedly connected with the screw block (122).

6. The extensometer quick-clamping positioning device of claim 5, wherein the rotating frame (210) comprises a rod frame (211) and a screw (212), the rod frame (211) is rotatably connected with the sliding block (124), and the screw (212) is in threaded connection with the rod frame (211).

7. The extensometer quick-clamping and positioning device of claim 6, wherein the slide block (124) is provided with a taper hole matched with the screw (212).

8. The extensometer quick-clamping and positioning device of claim 7 wherein a support block (250) is fixedly connected between each pair of the support rods (220).