CN210243353U

CN210243353U - A pliers torsion test device

Info

Publication number: CN210243353U
Application number: CN201921064456.9U
Authority: CN
Inventors: Xiaojie Jia; 贾晓杰; Yifan Wang; 王一凡; Pei Wang; 王沛; Yabing Liu; 刘亚兵; Yuanyuan Chen; 陈媛媛; Qiang Zhou; 周强; Quan Liu; 刘权
Original assignee: Henan Province Quality and Technical Supervision Bureau
Current assignee: Henan Province Quality and Technical Supervision Bureau
Priority date: 2019-07-09
Filing date: 2019-07-09
Publication date: 2020-04-03
Anticipated expiration: 2029-07-09

Abstract

The utility model discloses a pliers torsion test device, belonging to the technical field of product quality detection and metering calibration test, comprising a cabinet, wherein the top of the cabinet is a working platform, and a bending resistance test piece clamping component, a pliers handle supporting component, a pliers pressure mechanism and a pliers torsion mechanism are assembled on the working platform; the bending-resistant test piece clamping assembly and the pliers handle supporting assembly of the pliers fixing mechanism are quickly and conveniently assembled and disassembled with the working platform, the distance between the bending-resistant test piece clamping assembly and the pliers handle supporting assembly is flexibly adjusted, so that the bending-resistant test piece clamping assembly and the pliers handle supporting assembly can be suitable for tests of pliers of different types and specifications, and the bending-resistant test piece clamping assembly and the pliers handle supporting assembly can be mutually combined for; through mutually supporting the use between pliers fixed establishment, pliers pressure mechanism and the pliers torsion mechanism, realized a pliers torsion test device.

Description

Pliers torsion test device

Technical Field

The utility model belongs to the technical field of product quality detects, measurement calibration test, in particular to pliers torsion test device.

Background

For the test tests of the clamp-twist pliers, the shearing pliers and the clamp-twist shearing pliers, the state establishes a standard GB/T6291-2013 test method for the clamp-twist pliers and the shearing pliers, in the method, except for the test methods of the surfaces, the gaps of the cutting edges, the gaps of the mouth tops, the hardness of the clamping surfaces, the hardness of the cutting edges and the like of the pliers, the test methods of the bending strength test, the shearing performance test and the torsion test of the pliers are mainly specified, however, the specific test devices are not uniformly specified in the standard.

The patent literature on forceps testing is mainly: the Chinese patent application No. CN201810025659.0 discloses a hydraulic clamp fatigue test stand, Chinese patent application No. CN201510371340.X, discloses a main body frame for a clamp test stand, Chinese patent application No. CN201821697434.1, discloses a clamp multifunctional detection simple test stand and the like, and the technical schemes disclosed above are not designed according to the requirements of national standard GB/T6291 and 2013 & lt & gt test method & gt of clamp and twist clamp, so that special test detection equipment for performing torsion test on the clamp is absent, the quality detection and calibration test efficiency of the clamp is low, and the working efficiency is affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pliers torsion test device; the technical scheme adopted for achieving the purpose is as follows:

a clamp torsion testing device comprises a cabinet, wherein the top of the cabinet is provided with a working platform, and a bending-resistant test piece clamping assembly, a clamp handle supporting assembly, a clamp pressure mechanism and a clamp torsion mechanism are assembled on the working platform;

the bending-resistant test piece clamping assembly comprises a clamping support arm fixedly connected to the working platform, and a clamping seat for clamping a bending-resistant test piece is fixed at the upper end of the clamping support arm; the pliers handle supporting assembly comprises a supporting seat fixedly connected to the working platform, and a lifting supporting table is arranged at the top of the supporting seat;

the forceps pressure mechanism comprises a supporting bent arm fixedly connected to the working platform, a servo electric cylinder with a piston rod vertically arranged downwards is fixed at the top end of the supporting bent arm, a forceps pressure head is fixed at the tail end of the piston rod, and a pressure sensor is arranged between the forceps pressure head and the tail end of the piston rod;

the pliers torsion mechanism comprises a guide rail seat fixedly connected to the working platform, a guide rail arranged in the left-right direction is fixed on the guide rail seat, a sliding plate is connected onto the guide rail in a sliding manner, a worm gear mechanism is fixed on the sliding plate, an output shaft of the worm gear mechanism points to the direction of the pliers handle supporting assembly, a torsion sensor is mounted at the tail end of the output shaft of the worm gear mechanism, and a pliers torsion head is mounted at the tail end of the output shaft of the torsion sensor; the bottom of the sliding plate is provided with a threaded hole arranged along the left-right direction, the guide rail seat is rotatably connected with a power screw rod penetrating through the threaded hole, and the right end of the power screw rod is provided with a manual rotating wheel.

Further, the array is equipped with a plurality of installation screw holes on work platform, both sides all are equipped with the engaging lug around centre gripping support arm bottom and supporting seat bottom both sides around, are equipped with the rectangular shape through-hole of level on the engaging lug, are equipped with fixing bolt in the rectangular shape through-hole of level, fixing bolt and installation screw hole threaded connection, fixing bolt's bolt cap is greater than the width of the rectangular shape through-hole of level, and the rectangular shape through-hole of level sets up along left right direction.

Further, be equipped with vertical rectangular shape through-hole on the grip slipper, be equipped with fixing bolt in vertical rectangular shape through-hole, fixing bolt and centre gripping support arm upper end threaded connection, fixing bolt's bolt cap is greater than the width of vertical rectangular shape through-hole, and vertical rectangular shape through-hole sets up along vertical direction.

Furthermore, the pliers pressure head includes the pressure head seat of fixed connection at the piston rod end, is equipped with two supplementary arms that keep off on the pressure head seat side by side, and when the pliers pressure head downstream pressed the pliers handle, the pliers handle was located between two supplementary arms that keep off.

Furthermore, the pliers wrench head comprises a wrench head seat fixed at the tail end of the output shaft of the torque sensor, two blocking claws are arranged on the wrench head seat side by side, and when the pliers wrench head moves to the pliers handle, the pliers handle is located between the two blocking claws.

The utility model discloses the beneficial effect who has does: (1) the bending-resistant test piece clamping assembly and the pliers handle supporting assembly of the pliers fixing mechanism are quickly and conveniently assembled and disassembled with the working platform, the distance between the bending-resistant test piece clamping assembly and the pliers handle supporting assembly is flexibly adjusted, so that the bending-resistant test piece clamping assembly and the pliers handle supporting assembly can be suitable for tests of pliers of different types and specifications, and the bending-resistant test piece clamping assembly and the pliers handle supporting assembly can be mutually combined for;

(2) the arrangement of the horizontal strip-shaped through holes at the bottoms of the bending-resistant test piece clamping assembly and the pliers handle supporting assembly realizes the adjustment of the left and right positions of the horizontal strip-shaped through holes, so that the detection is more accurate;

(3) the upper and lower positions of the clamping seat and the supporting platform are flexibly adjusted, so that the fixation of the pliers with different models and specifications can be met;

(4) the servo electric cylinder and the pressure sensor of the pliers pressure mechanism are arranged, so that the pressure value and the displacement value, namely the stress value and the deformation quantity of the pliers, can be accurately measured;

(5) the power screw rod is manually rotated in the pliers torsion mechanism, so that the pliers torsion head is conveniently driven to move left and right, and the handles of the pliers are quickly and accurately clamped;

(6) the arrangement of the worm gear mechanism in the pliers torsion mechanism has large output torsion, so that the pliers torsion stress is ensured to meet the standard requirement; meanwhile, the torque sensor is arranged to realize the accurate measurement of the torque value of the handle of the pliers;

(7) through mutually supporting the use between pliers fixed establishment, pliers pressure mechanism and the pliers torsion mechanism, realized a pliers torsion test device.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a perspective view of the upper portion of the cabinet of FIG. 1;

FIG. 3 is a perspective view of the forceps holding mechanism;

fig. 4 is a perspective view of the torque mechanism of the pliers.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1 and 2, the present invention includes a cabinet 3, a working platform 4 is arranged on the top of the cabinet 3, and a pliers fixing mechanism 6, a pliers pressure mechanism 8 and a pliers torsion mechanism 9 are assembled on the working platform 4;

as shown in fig. 3, the forceps fixing mechanism 6 comprises a bending-resistant test strip clamping component and a forceps handle supporting component in sequence from left to right, the bending-resistant test strip clamping component comprises a clamping supporting arm 614 fixedly connected to the working platform 4, and a clamping seat 62 for clamping a bending-resistant test strip is fixed at the upper end of the clamping supporting arm 614; the pliers handle supporting assembly comprises a supporting seat 68 fixedly connected to the working platform 4, and a lifting supporting table 66 is arranged at the top of the supporting seat 68;

as shown in fig. 1 and fig. 2, the forceps pressure mechanism 8 includes a support curved arm 81 fixedly connected to the working platform 4, a servo electric cylinder 83 with a piston rod vertically arranged downwards is fixed at the top end of the support curved arm 81, a forceps pressure head 86 is fixed at the end of the piston rod through a coupling 84, and a pressure sensor 85 is arranged between the forceps pressure head 86 and the end of the piston rod;

as shown in fig. 4, the forceps torsion mechanism 9 includes a guide rail seat 98 fixedly connected to the working platform 4, a guide rail 910 arranged along the left-right direction is fixed on the guide rail seat 98, a sliding plate 99 is slidably connected to the guide rail 910, a worm gear mechanism 96 is fixed on the sliding plate 99, an output shaft 93 of the worm gear mechanism 96 points to the direction of the forceps handle support assembly, a torsion sensor 912 is installed at the tail end of the output shaft 93 of the worm gear mechanism 96, i.e. the torsion sensor 912 is coaxially connected with an input shaft of the torsion sensor 912, and a forceps torsion head 91 is installed on an output shaft of the torsion sensor 912; a threaded hole is formed in the bottom of the sliding plate 99 in the left-right direction, a power screw 911 is rotatably connected to the rail base 98 and penetrates through the threaded hole, and a manual rotation wheel 97 is provided at the right end of the power screw 911.

As shown in fig. 1 and 2, a plurality of mounting screw holes 5 are arranged on the working platform 4 in an array manner, engaging lugs are arranged on the front side and the rear side of the bottom of the clamping support arm 614 and the front side and the rear side of the bottom of the support seat 68, horizontal long-strip-shaped through

holes

613, 611, 69 are correspondingly arranged on the engaging lugs, fixing bolts are assembled in the horizontal long-strip-shaped through

holes

613, 69, the fixing bolts are in threaded connection with the mounting screw holes 5, bolt caps of the fixing bolts are larger than the horizontal long-strip-shaped through

holes

613, 69, the horizontal long-strip-shaped through

holes

613, 69 are arranged in the left-right direction, and fine adjustment in the left-right direction can be carried out on the bending-resistant.

Be equipped with vertical rectangular shape through-hole on holder 62, be equipped with fixing bolt 61 in vertical rectangular shape through-hole, fixing bolt 61 and centre gripping support arm 614 upper end threaded connection, fixing bolt 61's bolt cap is greater than the width of vertical rectangular shape through-hole, and vertical rectangular shape through-hole sets up along vertical direction to can carry out the fine setting of direction from top to bottom to holder 62.

In order to ensure that the pliers pressure head 86 does not have dislocation and stable force application when applying pressure to the pliers handle, the tail end of the pliers pressure head 86 is provided with an arc-shaped inner groove, and the pliers handle is positioned in the arc-shaped inner groove; or other structures are adopted instead, for example, the pliers pressure head comprises a pressure head seat fixedly connected to the tail end of the piston rod, two auxiliary blocking arms are arranged on the pressure head seat side by side, and when the pliers pressure head moves downwards to press the pliers handle, the pliers handle is positioned between the two auxiliary blocking arms.

The wrench head 91 of the pliers comprises a torque head seat 913 fixed at the end of the output shaft of the torque sensor 912, and two claws 914 are arranged on the torque head seat 913 side by side, and when the wrench head 91 of the pliers moves towards the handle of the pliers, the handle 914 of the pliers is located between the two claws.

A bearing block 92 is fixed to the slide plate 99, and a bearing for supporting the output shaft 93 of the torque sensor 96 is fixed to the bearing block 92.

As shown in fig. 1, a storage chamber is provided in the cabinet 3, a storage chamber door 1 is provided on the cabinet 3, and adjusting legs 2 are provided at the bottom of four corners of the cabinet 3.

The utility model discloses when carrying out torsion test:

fixing the bending-resistant test piece clamping component and the pliers handle supporting component of the pliers fixing mechanism 6 on the working platform 4, inserting a torsion test piece into the clamping seat 62, wherein the selection of the torsion test piece meets the requirement of test specification, then adjusting the left and right positions of the bending-resistant test piece clamping component and the pliers handle supporting component according to the type, the size and the specification of a pliers to be tested, adjusting the height of the clamping seat 62 and the supporting platform 66 to ensure that the jaw of the pliers 7 clamps the torsion test piece, and the lower handle of the pliers 7 is supported on the supporting platform 66, wherein the lifting adjustment of the supporting platform 66 can be realized by adopting various existing technologies, exerting pressure after the pliers are fixed, rotating the manual rotating wheel 97 to drive the power screw 911 to rotate so as to drive the sliding plate 99 and the parts to move leftwards, the pliers twisting head 91 clamps two handles, and then inputting a control signal to the servo electric cylinder 83 through a control data line 82, the servo electric cylinder 83 actuates the piston rod to drive the forceps pressure head 86 to press the forceps handle, and 50% of the bending strength load specified in the corresponding product standard is applied to the forceps handle;

finally, a control signal is input to the servo motor 95 through the control data line 94, the servo motor 95 drives the worm gear mechanism 96 to work, the output shaft 93 applies a torsion value specified in the corresponding product standard to the forceps handle in the clockwise direction and the anticlockwise direction, and whether the torsion angle meets the specified value in the corresponding product standard is judged.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: it is to be understood that modifications may be made to the above-described arrangements in the embodiments or equivalents may be substituted for some of the features of the embodiments, but such modifications or substitutions do not depart from the spirit and scope of the present invention.

Claims

1. a pliers torsion test device, is characterized in that, comprises cabinet, and the top of described cabinet is working platform, is equipped with bending-resistant test piece clamping assembly, pliers handle support assembly, pliers pressure mechanism and pliers torsion mechanism on the working platform ;

The bending-resistant test piece clamping assembly includes a clamping support arm that is fixedly connected to the working platform, and a clamping seat for clamping the bending-resistant test piece is fixed on the upper end of the clamping support arm; the pliers handle support assembly includes A support base fixedly connected to the working platform, and a lifting support platform is arranged on the top of the support base;

The pliers pressing mechanism includes a supporting curved arm that is fixedly connected to the working platform, a servo electric cylinder with a piston rod vertically downward is fixed at the top of the supporting curved arm, a pliers indenter is fixed at the end of the piston rod, and the pliers press There is a pressure sensor between the head and the end of the piston rod;

The pliers torsion mechanism includes a guide rail seat fixedly connected to the working platform, on the guide rail seat a guide rail arranged in the left and right directions is fixed, a sliding plate is slidably connected on the guide rail, and a worm gear and worm mechanism is fixed on the sliding plate. The output shaft of the mechanism points to the direction of the pliers handle support assembly, and a torsion sensor is installed at the end of the output shaft of the worm gear and worm mechanism, and a pliers torsion head is installed at the end of the output shaft of the torque sensor; the bottom of the sliding plate is provided with threaded holes arranged in the left and right directions, and the guide seat is provided with threaded holes in the left and right directions. The upper rotatable connection is provided with a power lead screw arranged through the threaded hole, and a manual rotating wheel is arranged on the right end of the power lead screw.

2. The pliers torsion test device according to claim 1 is characterized in that, a plurality of mounting threaded holes are arranged in an array on the working platform, and both front and rear sides of the bottom of the clamping support arm and the front and rear sides of the bottom of the support base are provided with a plurality of mounting threaded holes. The connecting lug is provided with a horizontal elongated through hole on the connecting lug, a fixing bolt is assembled in the horizontal elongated through hole, the fixing bolt is threadedly connected with the installation threaded hole, and the bolt cap of the fixing bolt is larger than the horizontal elongated through hole width, and the horizontal elongated through holes are arranged in the left-right direction.

3. The forceps torsion test device according to claim 2, characterized in that, a vertical elongated through hole is provided on the clamping seat, a fixing bolt is assembled in the vertical elongated through hole, and the fixing bolt is The upper end of the clamping support arm is threadedly connected, the cap of the fixing bolt is larger than the width of the vertical elongated through hole, and the vertical elongated through hole is arranged along the vertical direction.

4. The forceps torsion test device according to any one of claims 1 to 3, wherein the forceps indenter comprises an indenter seat fixedly connected to the end of the piston rod, and two indenters are arranged side by side on the indenter seat Auxiliary stop arm, the plier handle is located between the two auxiliary stop arms when the pliers indenter moves downward and presses against the plier handle.

5 . The forceps torsion test device according to claim 4 , wherein the torsion head of the forceps comprises a torsion head seat fixed on the end of the output shaft of the torque sensor, and two blocking claws are arranged side by side on the torsion head seat. During movement, the pliers handle is located between the two pawls.