CN220690319U - Electric and pneumatic torque wrench calibrating device - Google Patents

Abstract

The utility model discloses an electric and pneumatic torque wrench calibrating device, which comprises a base, a bolt simulator vertically arranged on the base, a torque measuring instrument coaxially connected to the bolt simulator, and a positioning and fastening mechanism for enabling electric and pneumatic torque wrenches to be calibrated to be stably fixed on the torque measuring instrument, wherein the positioning and fastening mechanism comprises a pair of linear precise guide rails, a pair of counter-force arm levers and a wrench clamping assembly, the pair of linear precise guide rails are transversely arranged on the base and symmetrically positioned on two sides of the bolt simulator, the pair of counter-force arm levers are vertically connected to sliding blocks of the linear precise guide rails in a one-to-one correspondence manner, and the wrench clamping assembly is connected between the pair of counter-force arm levers in a lifting manner and is vertically opened and closed. The utility model solves the technical problem of how to calibrate the electric and pneumatic torque plate conveniently, conveniently and accurately, and has the advantages of convenient and labor-saving operation, low labor intensity of workers, accurate and reliable calibration result and the like.

Description

Electric and pneumatic torque wrench calibrating device

Technical Field

The utility model relates to the technical field of electric and pneumatic torque wrench calibration, in particular to an electric and pneumatic torque wrench calibration device.

Background

The electric and pneumatic torque wrench is an intelligent assembly tool, and has the advantages of convenient operation, labor saving operation and settable torque, so that the electric and pneumatic torque wrench is widely applied to the assembly fields of wind power, nuclear power, industry and the like. During use, whether the actual output torque of the electric and pneumatic torque wrench is within the allowable range of the set torque will directly affect the assembly quality, which makes it necessary to perform periodic calibration on the electric and pneumatic torque wrench according to JJF1610-2017, electric and pneumatic torque wrench calibration standard, to ensure the assembly quality. However, the existing electric and pneumatic torque wrench calibrating device lacks a mechanism for stabilizing the level of the electric or pneumatic torque wrench on the torque measuring instrument, and the level of the electric or pneumatic torque wrench is maintained to be stable by manual holding in the calibrating process, so that the electric or pneumatic torque wrench calibrating device not only causes inconvenient and laborious operation and high manual labor intensity, but also is influenced by human factors and reaction force generated when the electric or pneumatic torque wrench works in the calibrating process, the manual holding is difficult to ensure the stable level of the electric or pneumatic torque wrench, and the electric or pneumatic torque wrench is easy to be different from the torque sensor and the bolt simulator, so that the accuracy and the reliability of a calibrating result are low.

Disclosure of Invention

Therefore, the technical problem to be solved by the utility model is how to calibrate the electric and pneumatic torque plate conveniently, laborsaving and accurately.

In order to solve the technical problems, the utility model provides an electric and pneumatic torque wrench calibrating device, which comprises a base, a bolt simulator vertically arranged on the base, a torque measuring instrument coaxially connected on the bolt simulator, and a positioning and fastening mechanism for enabling an electric or pneumatic torque wrench to be calibrated to be horizontally stabilized on the torque measuring instrument, wherein the positioning and fastening mechanism comprises a pair of linear precise guide rails, a pair of counter-force arm levers and a wrench clamping assembly, the pair of linear precise guide rails are transversely arranged on the base and symmetrically positioned on two sides of the bolt simulator, the pair of counter-force arm levers are vertically connected on sliding blocks of the linear precise guide rails in a one-to-one correspondence manner, and the wrench clamping assembly is connected between the pair of counter-force arm levers in a lifting manner and is vertically opened and closed.

In one embodiment of the utility model, the wrench clamping assembly comprises an upper clamping plate, a lower clamping plate and four fastening bolts, wherein both ends of the upper clamping plate and the lower clamping plate are correspondingly sleeved on the counter-force arm rods in a sliding manner, a plurality of first bolt holes which correspond to each other and are matched with the fastening bolts are formed in a side-by-side manner on one surface of the counter-force arm rods facing the bolt simulator in the vertical direction, a group of second bolt holes which are matched with the first bolt holes are correspondingly formed in both ends of the upper clamping plate and the lower clamping plate, and the upper clamping plate and the second bolt holes in the required fastening positions are horizontally fastened on the counter-force arm rods through the matching of the four fastening bolts with the first bolt holes in the second bolt holes and the required fastening positions.

In one embodiment of the utility model, the bolt simulator and the torque measuring instrument are detachably connected through a sleeve, and the bolt simulator is detachably fixed on the base through a clamping seat matched with the bolt simulator.

In one embodiment of the utility model, the clamping seat comprises a clamping seat body and a groove embedded in the top surface of the clamping seat body, wherein the groove is matched with the bottom surface of the bolt simulator, and four corners of the clamping seat body are provided with threaded connection holes.

Compared with the prior art, the technical scheme of the utility model has the following advantages:

1. according to the utility model, the positioning and fastening mechanism capable of enabling the electric or pneumatic torque wrench to be calibrated to be horizontally stable on the torque measuring instrument is arranged, so that the defect of maintaining the horizontal stability by means of manual holding is avoided, the labor intensity is greatly reduced, the convenience of operation is improved, and the accuracy and the reliability of a calibration result are ensured.

2. According to the utility model, the bolt simulator is detachably connected with the torque measuring instrument and the base through the sleeve and the clamping seat matched with the bolt simulator, so that the matched bolt simulator can be replaced according to different measuring ranges and types of electric or pneumatic torque wrenches to be calibrated, thereby realizing the calibration of the electric or pneumatic torque wrench fixed wrenches with different measuring ranges and different types, and greatly improving the application range and universality of the device.

Drawings

In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings, in which

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the present utility model in use;

FIG. 3 is a schematic view of a card holder according to the present utility model;

description of the specification reference numerals: 1. the device comprises a base, a bolt simulator, a torque measuring instrument, a positioning and fastening mechanism, a linear precise guide rail, a counter-force arm lever, a spanner clamping assembly, a sleeve, a clamping seat and a clamping seat.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.

With respect to the foregoing and other features, aspects and advantages of the utility model, they will become apparent from the following detailed description of the embodiments, which proceeds with reference to the accompanying drawings. The directional terms mentioned in the following embodiments are, for example: upper, lower, left, right, front or rear, etc., are merely references to the directions of the drawings. Thus, directional terminology is used for the purpose of illustration and is not intended to be limiting of the utility model, and furthermore, like reference numerals refer to like elements throughout the embodiments.

Referring to fig. 1, 2 and 3, an electric and pneumatic torque wrench calibrating apparatus includes a base 1, a bolt simulator 2 vertically disposed on the base 1, a torque meter 3 coaxially connected to the bolt simulator 2, and a positioning and fastening mechanism 4 for stabilizing an electric and pneumatic torque wrench to be calibrated horizontally on the torque meter 3, wherein the positioning and fastening mechanism 4 includes a pair of linear precise guide rails 41, a pair of reaction arm rods 42 and a wrench clamping assembly 43, the pair of linear precise guide rails 41 are transversely mounted on the base 1 and symmetrically disposed on two sides of the bolt simulator 2, the pair of reaction arm rods 42 are vertically connected to a slider of the linear precise guide rails 41 in a one-to-one correspondence manner, and the wrench clamping assembly 43 is connected between the pair of reaction arm rods 42 in a liftable manner and is vertically opened and closed. So set up, so long as the work end of waiting to calibrate electric or pneumatic torque wrench is coaxial with torque measuring apparatu 3 earlier in the time of calibration, then, the slider of control sharp precision guideway 41 drives counter-force arm 42 and moves towards bolt simulator 2 direction, move to make counter-force arm 42 fall in the handle fastening position that makes waiting to calibrate electric or pneumatic torque wrench keep horizontal, then fasten the slider of sharp precision guideway, then, the handle of waiting to calibrate electric or pneumatic torque wrench on the spanner clamping assembly 43 clamping fastening position on the counter-force arm 42 is controlled, finally, according to JJF1610-2017 "electric, pneumatic torque wrench calibration Specification" requirement, carry out the following operation repeatedly 10 times: and the electric or pneumatic torque wrench to be calibrated is started to return to zero after reaching full range, and the display value on the torque measuring instrument 3 is read, so that the electric or pneumatic torque wrench is conveniently, laborsaving and accurately calibrated.

The wrench clamping assembly 43 comprises an upper clamping plate, a lower clamping plate and four fastening bolts, the two ends of the upper clamping plate and the two ends of the lower clamping plate are respectively sleeved on the counter-force arm rods 42 in a corresponding sliding mode, a pair of counter-force arm rods 42 face one face of the bolt simulator 2, a plurality of first bolt holes which correspond to each other and are matched with the fastening bolts are formed in parallel in the vertical direction, a set of second bolt holes which are matched with the first bolt holes are respectively formed in the two ends of the upper clamping plate and the two ends of the lower clamping plate in a corresponding mode, and the upper clamping plate and the lower clamping plate are horizontally fastened on the counter-force arm rods 42 in a matching mode of the first bolt holes in the second bolt and the required fastening positions through the four fastening bolts.

The bolt simulator 2 and the torque measuring instrument 3 are detachably connected through a sleeve 5, the bolt simulator 2 is detachably fixed on the base 1 through a clamping seat 6 matched with the bolt simulator 2, and particularly as shown in fig. 3, the clamping seat 6 comprises a clamping seat 6 body and grooves embedded in the top surface of the clamping seat 6 body, the grooves are matched with the bottom surface of the bolt simulator 2, and threaded connection holes are formed in four corners of the clamping seat 6 body. By the arrangement, when the fixed torque wrench of the electric or pneumatic torque wrench with different measuring ranges and different types is required, the corresponding bolt simulator 2 is replaced, so that the fixed torque wrench of the electric or pneumatic torque wrench with different measuring ranges and different types can be calibrated, and the application range and the universality of the device are greatly improved.

In the description of the embodiments of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" should 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 utility model will be understood in specific cases by those of ordinary skill in the art.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present utility model will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present utility model.

Claims (4)

1. The utility model provides an electronic and pneumatic torque wrench calibrating device, includes base, vertical locating bolt simulator and coaxial coupling on the base are in torque measuring apparatu on the bolt simulator, its characterized in that still includes and is used for making to wait to calibrate electronic or pneumatic torque wrench level and stabilize location fastening mechanism on the torque measuring apparatu, location fastening mechanism includes a pair of sharp precision rail, a pair of counter-force armed lever and spanner clamping assembly, a pair of sharp precision rail transversely installs on the base and the symmetry is located the both sides of bolt simulator, a pair of counter-force armed lever one-to-one vertical connection is in on the slider of sharp precision rail, spanner clamping assembly liftable ground is connected a pair of between the counter-force armed lever and along vertical opening and shutting.

2. The electric and pneumatic torque wrench calibrating device according to claim 1, wherein the wrench clamping assembly comprises an upper clamping plate, a lower clamping plate and four fastening bolts, both ends of the upper clamping plate and the lower clamping plate are correspondingly sleeved on the counter-force arm rods in a sliding manner, a plurality of first bolt holes which correspond to each other and are matched with the fastening bolts are vertically arranged on one surface of the counter-force arm rods facing the bolt simulator side by side, both ends of the upper clamping plate and the lower clamping plate are correspondingly provided with a group of second bolt holes matched with the first bolt holes, and the upper clamping plate and the lower clamping plate are horizontally fastened on the counter-force arm rods through the matching of the four fastening bolts with the second bolts and the first bolt holes in required fastening positions.

3. The electric and pneumatic torque wrench calibration device according to claim 1, wherein said bolt simulator and said torque meter are detachably connected by a sleeve, said bolt simulator being detachably secured to said base by a cartridge adapted thereto.

4. The electric and pneumatic torque wrench calibrating device according to claim 3, wherein said clamping seat comprises a clamping seat body and a groove embedded in the top surface of said clamping seat body, said groove is matched with the bottom surface of said bolt simulator, and four corners of said clamping seat body are provided with threaded connection holes.