CN207832052U - A kind of buckle steel tape zero-bit calibrating installation - Google Patents

Abstract

The utility model relates to a zero-position verification device for a steel tape with a hook, which comprises a verification platform, a fixed platform, a pressing mechanism, an image acquisition mechanism, a fixed pulley and a weight. The steel tape with a hook to be tested is placed on the verification platform, and One end of it is fixed on the fixed platform, and the other end passes through the fixed pulley and is connected with the weight. The fixed pulley is installed at the tail of the verification platform, and the pressing mechanism is installed on the verification platform to realize the fixing of the hooked steel tape. The image acquisition mechanism is located Verify one side of the platform and slide along it. There is a standard scale line on the verification platform. The image acquisition mechanism slides along the verification platform to collect the image between each distance on the hooked steel tape to be tested and the standard scale line. . The utility model has the advantages of simple structure, convenient operation and high verification efficiency.

Description

A zero-position verification device for steel tape with hook

technical field

The utility model relates to the technical field of measurement verification, in particular to a zero-position verification device for a steel tape with a hook.

Background technique

Steel tape is a commonly used measuring tool in industrial and mining enterprises and institutions. During the production process of steel tape, there will be errors in the marking of the scale, and the larger the measuring range of the steel tape, the greater the error will be. Especially for steel tapes with a measuring range of more than 5m, the error of scale marking has affected the measurement results of steel tapes. Therefore, the verification of steel tapes is a necessary requirement for the production of steel tapes or the use of steel tapes. It is also a standard for checking whether steel tapes are qualified. The existing conventional verification device uses clamping screws to clamp the tested and standard steel tapes. The zero point of the tested steel tape usually uses a spring clamping device, but sometimes it pops up; The zero position error reading is performed manually, which not only has slow verification speed and low efficiency, but also has errors in the verification.

Utility model content

The technical problem to be solved by the utility model is to provide a zero-position verification device for a steel tape with a hook, which is simple in structure, convenient in operation and high in verification efficiency.

The utility model is a zero-position verification device for a hooked steel tape, comprising a verification platform, a fixed platform, a pressing mechanism, an image acquisition mechanism, a fixed pulley and weights, and the fixed platform includes a first platform and a The second platform, the first platform is placed in the through groove of the verification platform, the verification platform realizes contact with the second platform by sliding relative to the first platform, and the second platform is provided with a fixing groove , one end of the hooked steel tape is clamped in the fixed groove, and the other end passes through the fixed pulley and is connected with the weight. The fixed pulley is installed at the tail of the verification platform, and the pressing mechanism is installed on the verification platform. The tightening mechanism includes a fixed bracket, a rotating shaft, an armature bracket, an armature and an electromagnet. A groove is provided on the verification platform directly below the hooked steel tape, the electromagnet is placed in the groove, and the fixed bracket is placed in the groove. On one side of the groove, the armature is installed on the armature bracket, and the armature bracket rotates relative to the fixed bracket through the rotating shaft to realize the adsorption and separation of the armature and the electromagnet. The rotating shaft is installed on the fixed bracket, and the image acquisition mechanism is located at Test one side of the platform and slide along it;

It also includes a controller and a display screen, and the verification platform, the pressing mechanism, the image acquisition mechanism and the display screen are respectively electrically connected with the controller.

The utility model relates to a zero-position verification device for a steel tape with a hook, wherein slide grooves are arranged on both sides of the first platform, and second slide rails matching the slide grooves are arranged on the inner wall of the verification platform.

The utility model relates to a zero-position verification device for a hooked steel tape, wherein the height of the second platform is the same as that of the verification platform.

The utility model relates to a zero-position verification device for a steel tape with a hook, wherein the first platform and the second platform are integrally formed.

The utility model is a zero-position verification device for a hooked steel tape, wherein the image acquisition mechanism includes a sliding seat, a rotating rod, a first bracket, a second bracket and a camera, and the rotating rod is vertically installed on the sliding seat. One end of the first bracket is horizontally installed on the top of the rotating rod, the other end of the first bracket is movably connected with the second bracket, and the camera is installed on the second bracket and is located directly above the hooked steel tape measure.

The utility model relates to a zero-position verification device for a steel tape with a hook, wherein a first slide rail is provided on one side of the verification platform, and the slide seat is matched and installed with the first slide rail.

The utility model relates to a zero-position verification device for a hooked steel tape, wherein the camera adopts a CCD camera.

The utility model relates to a zero-position verification device for a hooked steel tape, wherein the axis of the fixed pulley and the axis of the verification platform are on the same horizontal line.

The utility model relates to a zero-position verification device for a hooked steel tape, wherein the verification platform is provided with a standard scale line.

Compared with the prior art, the utility model has the advantages and beneficial effects as follows: ① The utility model realizes automatic collection of image information by adopting an image acquisition mechanism, and transmits the image information to the controller, and calculates the zero position through the controller The error is displayed on the display screen, and then it is judged whether the steel tape with hook is qualified, which greatly improves the verification accuracy and verification speed. ②The utility model adopts a pressing mechanism to realize the fixation of the hooked steel tape to be tested, prevent its axis from deviating from the axis of the verification platform, and affect the accuracy of the verification. Fixation for quick and straight fixation to increase operating speed. ③ The verification platform of the utility model makes the zero scale on the steel tape with hook to be tested correspond to the zero scale on the standard scale line by sliding relative to the first platform, so as to facilitate the subsequent verification of the steel tape with hook to be tested and ensure Test accuracy.

Below in conjunction with accompanying drawing, a kind of steel measuring tape with hook zero position verification device of the present utility model will be further described.

Description of drawings

Fig. 1 is a perspective view of a zero-position verification device for a steel tape with a hook of the present invention;

Fig. 2 is a top view of a zero-position verification device for a hooked steel tape of the present invention;

Fig. 3 is a structural diagram of a fixed platform in a zero-position verification device for a hooked steel tape of the present invention;

Fig. 4 is a structural diagram of the pressing mechanism in a zero-position verification device for a hooked steel tape of the present invention;

Fig. 5 is an installation structure diagram of an image acquisition mechanism in a zero-position verification device for a hooked steel tape of the present invention;

Among them: 1. Verification platform; 101, first slide rail; 102, groove; 2, fixed platform; 201, first platform; 202, second platform; 203, fixed groove; 204, chute; 3, hook Steel tape measure; 4, pressing mechanism; 401, fixed bracket; 402, rotating shaft; 403, armature bracket; 404, armature; 405, electromagnet; 5, image acquisition mechanism; 501, sliding seat; 502, rotating rod; 503, The first bracket; 504, the second bracket; 505, the camera; 6, the fixed pulley; 7, the weight; 8, the standard scale line.

Detailed ways

As shown in Fig. 1 and Fig. 2, a kind of hooked steel tape zero verification device of the utility model comprises a verification platform 1, a fixed platform 2, a pressing mechanism 4, an image acquisition mechanism 5, a fixed pulley 6 and a weight 7, Put the hooked steel tape measure 3 to be tested on the verification platform 1, and fix one end of it on the fixed platform 2, and the other end passes through the fixed pulley 6 and connects with the weight 7, and the fixed pulley 6 is installed at the tail of the verification platform 1, wherein , the axis of the fixed pulley 6 and the axis of the verification platform 1 are on the same horizontal line, so that the axis of the hooked steel tape 3 to be tested coincides with the axis of the verification platform 1, thereby ensuring the detection accuracy. The pressing mechanism 4 is installed on the verification platform 1 On the platform 1, the hooked steel tape 3 is fixed to prevent its axis from deviating from the axis of the verification platform 1, which will affect the accuracy of the verification. The image acquisition mechanism 5 is located on one side of the verification platform 1 and slides along it. On the verification platform 1 A standard scale line 8 is provided, and the image acquisition mechanism 5 slides along the verification platform 1 to collect images between each distance on the hooked steel tape 3 to be tested and the standard scale line 8 .

It also includes a controller and a display screen, the verification platform 1, the pressing mechanism 4, the image acquisition mechanism 5 and the display screen are electrically connected to the controller respectively, the image acquisition mechanism 5 transmits the image information to the controller, and the zero position error is calculated by the controller And through the display screen display, and then determine whether the hooked steel tape 3 to be tested is qualified.

As shown in Figure 3, the fixed platform 2 includes a first platform 201 and a second platform 202 placed at its end, the first platform 201 and the second platform 202 are integrally formed, and the first platform 201 is placed on the verification platform 1 In the through groove, the two sides of the first platform 201 are provided with chute 204, and the inner wall of the verification platform 1 is provided with a second slide rail matched with the chute 204, the verification platform 1 slides relative to the first platform 201, and the second The height of the second platform 202 is the same as that of the verification platform 1, so that the second platform 202 has a position-limiting effect on the verification platform 1. The second platform 202 is provided with a fixing groove 203, and one end of the hooked steel tape 3 is clamped on the fixed In the groove 203. The verification platform 1 slides relative to the first platform 201 so that the zero scale on the hooked steel tape 3 to be tested corresponds to the zero scale on the standard scale line 8, so as to facilitate subsequent verification of the hooked steel tape 3 to be tested.

As shown in Figure 4, the pressing mechanism 4 includes a fixed bracket 401, a rotating shaft 402, an armature 404, a bracket 403, an armature 404 and an electromagnet 405, and a groove 102 is provided on the testing platform 1 directly below the hooked steel tape measure 3 to be tested. , the electromagnet 405 is placed in the groove 102, the fixed bracket 401 is placed on one side of the groove 102, the armature 404 is installed on the armature 404 bracket 403, and the armature 404 bracket 403 rotates relative to the fixed bracket 401 through the rotating shaft 402 to realize the armature 404 and the electromagnetic Adsorption and separation of the iron 405, the rotating shaft 402 is installed on the fixed bracket 401, so as to realize the fixation of the hooked steel tape measure 3 to be measured.

As shown in Figure 5, the image acquisition mechanism 5 comprises a sliding seat 501, a rotating rod 502, a first support 503, a second support 504 and a camera 505, and one side of the verification platform 1 is provided with a first slide rail 101, and the sliding seat 501 and The first slide rail 101 is suitable for installation, the rotating rod 502 is installed vertically on the sliding seat 501, one end of the first bracket 503 is horizontally installed on the top of the rotating rod 502, and the other end of the first bracket 503 is flexibly connected with the second bracket 504 , the camera 505 is installed on the second bracket 504, and the camera 505 adopts a CCD camera 505. The image acquisition mechanism 5 slides along the first slide rail 101 through the sliding seat 501 to make it slide to the position requiring verification, and through the horizontal rotation of the rotating shaft 402 and the rotation of the second bracket 504 relative to the first bracket 503, the camera 505 is positioned at the position. It needs to be directly above the calibration scale. At the same time, the setting of the rotating shaft 402, the first bracket 503 and the second bracket 504 structure can make the image acquisition mechanism 5 realize the adjustment of the camera 505 within a certain range under the condition that the sliding seat 501 does not move. .

Working principle: the utility model first places the hooked steel tape measure 3 to be tested on the verification platform 1, one end of which is clamped in the fixing groove 203, the other end passes through the fixed pulley 6 and is tightened by the weight 7, and then The controller controls the sliding of the verification platform 1 relative to the first platform 201, so that the zero scale of the hooked steel tape 3 to be tested corresponds to the position of the standard scale, and is verified by the image acquisition mechanism 5. After the zero position corresponds, it is controlled by the controller The pressing mechanism 4 fixes and compresses the hooked steel tape 3 to be tested; then the image acquisition mechanism 5 translates along the first slide rail 101 under the control of the controller, and performs image acquisition for each distance of the hooked steel tape 3 to be measured, And the image information is transmitted to the controller, and the zero position error is calculated by the controller and displayed on the display screen, so as to determine whether the steel tape with hook 3 to be tested is qualified or not.

The above-mentioned embodiments are only described to the preferred implementation of the utility model, and are not limited to the scope of the utility model. Various modifications and improvements made should fall within the scope of protection determined by the claims of the utility model.

Claims (9)

1. a kind of buckle steel tape zero-bit calibrating installation, it is characterised in that：Including detecting platform, fixed platform, hold-down mechanism, figure As collecting mechanism, fixed pulley and counterweight, the fixed platform includes the first platform and is placed in the second platform of its end, and described the One platform is placed in the straight slot of the detecting platform, and the detecting platform is realized and the second platform by opposite first platform sliding Abutting, second platform is equipped with fixing groove, and one end of buckle steel tape is connected in fixing groove, and the other end is by fixed sliding It takes turns and is connect with counterweight, the fixed pulley is mounted on the tail portion of detecting platform, and the hold-down mechanism is mounted on detecting platform, institute It includes fixing bracket, shaft, armature bracket, armature and electromagnet to state hold-down mechanism, is located at buckle coil of strip on the detecting platform Ruler is arranged right below groove, and the electromagnet is placed in groove, and the fixing bracket is placed in the side of groove, the armature peace On armature bracket, the armature bracket is relatively fixed the absorption of holder pivots realization armature and electromagnet by shaft and divides From the shaft is mounted on fixing bracket, and described image collecting mechanism is located at the side of detecting platform and along its sliding；

Further include controller and display screen, detecting platform, hold-down mechanism, image acquisition mechanism and display screen respectively with control Device is electrically connected.

2. a kind of buckle steel tape zero-bit calibrating installation according to claim 1, it is characterised in that：First platform Both sides are equipped with sliding slot, and the inner wall of the detecting platform is equipped with the second sliding rail compatible with sliding slot.

3. a kind of buckle steel tape zero-bit calibrating installation according to claim 1, it is characterised in that：Second platform Height is identical as the height of detecting platform.

4. a kind of buckle steel tape zero-bit calibrating installation according to claim 1-3 any one, it is characterised in that：It is described First platform is an integral molding structure with the second platform.

5. a kind of buckle steel tape zero-bit calibrating installation according to claim 1, it is characterised in that：Described image harvester Structure includes slide, rotating bar, first support, second support and camera, and the rotating bar is vertically installed on slide, and described One end of one holder is transversely mounted on the top of rotating bar, and the other end of the first support is flexibly connected with second support, institute Camera installation is stated on the secondary support bracket and positioned at the surface of buckle steel tape.

6. a kind of buckle steel tape zero-bit calibrating installation according to claim 5, it is characterised in that：The detecting platform Side is equipped with the first sliding rail, and the slide is adapted to installation with the first sliding rail.

7. a kind of buckle steel tape zero-bit calibrating installation according to claim 5, it is characterised in that：The camera uses CCD camera.

8. a kind of buckle steel tape zero-bit calibrating installation according to claim 1, it is characterised in that：The axis of the fixed pulley The axis of the heart and detecting platform is in the same horizontal line.

9. a kind of buckle steel tape zero-bit calibrating installation according to claim 1, it is characterised in that：On the detecting platform Equipped with master scale line.