CN220136823U

CN220136823U - Tension detection device

Info

Publication number: CN220136823U
Application number: CN202321429765.8U
Authority: CN
Inventors: 甘航
Original assignee: Weber Spring Technology Suzhou Co ltd
Current assignee: Weber Spring Technology Suzhou Co ltd
Priority date: 2023-06-07
Filing date: 2023-06-07
Publication date: 2023-12-05
Anticipated expiration: 2033-06-07

Abstract

The utility model discloses a tension detection device which comprises an inspection platform, wherein a fixed traction plate is fixedly arranged on the inspection platform, a movable traction plate is slidably arranged on the inspection platform, a reciprocating driving mechanism is arranged in the inspection platform, the movable traction plate is driven to linearly reciprocate by the reciprocating driving mechanism, the reciprocating driving mechanism comprises a servo motor, a rotating disc and a transmission connecting rod, the servo motor is fixedly arranged at the lower side of the inspection platform, the rotating disc is fixedly connected with a power shaft of the servo motor, the end part of the transmission connecting rod is eccentrically and rotationally connected with the rotating disc, and the movable traction plate is driven to linearly reciprocate by the transmission connecting rod. The device is through setting up reciprocating drive mechanism, utilizes servo motor drive rotary disk at uniform velocity to rotate, and the transmission of passing drive connecting rod drives movable pulling plate and installs certain frequency and do reciprocating rectilinear motion, and the detection of compression is done to the spring that awaits measuring, makes this tension detection device have the function of detecting and draw and press fatigue performance, and it is more convenient to use.

Description

Tension detection device

Technical Field

The utility model relates to the technical field of tension detection, in particular to a tension detection device.

Background

After processing and preparation, the spring need detect its elastic tension and draw and press fatigue performance, and the spring tension testing machine that uses commonly used, among the prior art, application publication number CN210664850U, the tensile force detection device is used in spring production, including spring tension detector main part, lifting unit is installed to the front end of spring tension detector main part, the slider is installed to lifting unit's front end, the detector is installed to the front end of the inside of slider, the connecting chain is installed to the intermediate position of the below of detector, go up spacing regulating block is installed to the both sides of the below of fixing base. The lower hanging rings and the lower limit adjusting blocks are respectively arranged at the middle part and the two sides of the lower fixing seat, the lower limit adjusting blocks are connected with the lower fixing seat through the second fastening nuts, and the lower limit adjusting blocks at the two sides can be adjusted towards the middle part through the second fastening nuts, so that the area of the lower fixing seat is enlarged or reduced, the spring fixing device is suitable for springs with different sizes, the springs with hooks can be installed and detected through the lower hanging rings, and the spring fixing device is suitable for springs with various shapes.

However, in the practical application process, the existing detection device still has some defects, particularly, the existing detection device cannot carry out pulling and pressing fatigue performance on the existing detection device due to the lack of a reciprocating automatic traction and stretching mechanism, so that the detection items are single, and inconvenience is brought to use.

Disclosure of Invention

The present utility model is directed to a tension detecting device, which solves the above-mentioned problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a pulling force detection device, includes the test platform, fixed mounting has fixed traction plate on the test platform, slidable mounting has movable traction plate on the test platform, and test platform internally mounted has reciprocating drive mechanism, drives movable traction plate through reciprocating drive mechanism and come and go rectilinear motion.

The side screw thread of fixed traction plate is installed the screw thread and is adjusted the pole, and the tip of screw thread regulation pole rotates and is connected with first linkage block, the side slidable mounting of activity traction plate has the guide bar, and the both ends of guide bar are fixedly connected with second connecting block and bearing plate respectively, are provided with pressure sensor between activity traction plate and the bearing plate, and the go-between is all installed to the equal screw thread in opposite faces of first linkage block and second connecting block.

The reciprocating driving mechanism comprises a servo motor, a rotary disk and a transmission connecting rod, wherein the servo motor is fixedly arranged on the lower side of the inspection platform, the rotary disk is fixedly connected with a power shaft of the servo motor, the end part of the transmission connecting rod is eccentrically and rotatably connected with the rotary disk, and the transmission connecting rod drives the movable traction plate to reciprocate in a linear motion.

Preferably, the upper surface of inspection platform has seted up the installation spout, and installation spout internal fixation has two parallel arrangement's slip joint axle, the surface sliding mounting of slip joint axle has the mount pad, movable traction plate fixed mounting is on the mount pad, the one end that the rotary disk was kept away from to the drive connecting rod rotates with the mount pad to be connected.

Preferably, the upper surface of the detection platform is embedded with a grating scale, the lower surface of the mounting seat is embedded with a displacement sensor, and the displacement sensor slides along the surface of the grating scale.

Preferably, the upper surface of the rotary disk is provided with a guide groove, a threaded screw rod is rotatably mounted in the guide groove, a sliding sleeve is sleeved on the surface of the threaded screw rod in a threaded manner, the sliding sleeve slides along the guide groove, the surface of the sliding sleeve is fixedly connected with a connecting pin rod, and the end part of the transmission connecting rod is rotationally connected with the connecting pin rod.

Preferably, the end part of the threaded screw rod extends to the outer edge of the rotary disc along the radial direction, and is fixedly connected with a plug sleeve, an inner hole of the plug sleeve is in a hexagonal structure, a locking bolt is installed on the lower surface of the rotary disc in a threaded manner, and the threaded end of the locking bolt is tightly pressed on the surface of the plug sleeve.

Preferably, the rocking handle is fixedly installed at the end of the threaded adjusting rod, the locking nut is installed on the surface thread of the threaded adjusting rod, the surface of the guide rod is sleeved with the reset spring, and two ends of the reset spring are respectively abutted against the opposite surfaces of the second connecting block and the fixed traction plate.

Advantageous effects

The utility model provides a tension detection device, which has the following beneficial effects:

1. the tension detection device is characterized in that the fixed traction plate and the movable traction plate are arranged, the spring to be detected is arranged between the fixed traction plate and the movable traction plate, and the movable traction plate is driven by the reciprocating driving mechanism to approach or separate from the fixed traction plate, so that the effect of detecting tension is achieved.

2. According to the tension detection device, the reciprocating driving mechanism is arranged, the rotating disc is driven by the servo motor to rotate at a constant speed, the movable traction plate is driven to mount a certain frequency to do reciprocating linear motion through the transmission of the transmission connecting rod, and the compression and stretching detection is carried out on the spring to be detected, so that the tension detection device has the function of detecting the tension and compression fatigue performance, and is more convenient to use.

Drawings

FIG. 1 is a schematic view of the present utility model in a front cross-section;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;

fig. 3 is a schematic view showing the rotation of the rotary disk (top view) according to the present utility model.

In the figure: the device comprises a test platform 1, a fixed traction plate 2, a movable traction plate 3, a threaded adjusting rod 4, a first connecting block 5, a guide rod 6, a second connecting block 7, a bearing plate 8, a pressure sensor 9, a connecting ring 10, a servo motor 11, a rotating disk 12, a transmission connecting rod 13, a sliding connecting shaft 14, a mounting seat 15, a grating scale 16, a threaded screw rod 17, a sliding sleeve 18, a connecting pin rod 19, a plugging sleeve 20, a locking bolt 21, a rocking handle 22, a locking nut 23 and a track line 24.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution: the utility model provides a pulling force detection device, includes test platform 1, and fixed traction plate 2 is fixed to last fixed mounting of test platform 1, and slidable mounting has movable traction plate 3 on the test platform 1, and test platform 1 internally mounted has reciprocating drive mechanism, drives movable traction plate 3 round trip rectilinear motion through reciprocating drive mechanism.

Specifically, the upper surface of test platform 1 has seted up the installation spout, and fixed mounting has two parallel arrangement's slip joint axle 14 in the installation spout, and the surface sliding mounting of slip joint axle 14 has mount pad 15, and movable haulage plate 3 fixed mounting is on mount pad 15, and the one end that rotary disk 12 was kept away from to drive connecting rod 13 rotates with mount pad 15 to be connected, and test platform's upper surface inlays and has been equipped with grating scale 16, and the lower surface of mount pad 15 has inlayed displacement sensor, and displacement sensor slides along grating scale 16's surface, can detect the relative displacement of movable haulage plate 3 through displacement sensor.

The side screw thread of fixed traction plate 2 is installed threaded regulation pole 4, threaded regulation pole 4's tip rotates and is connected with first connecting block 5, threaded regulation pole 4's tip fixed mounting has rocking handle 22, threaded regulation pole 4's surface screw thread installs lock nut 23, movable traction plate 3's side slidable mounting has guide bar 6, guide bar 6's both ends fixedly connected with second connecting block 7 and bearing plate 8 respectively, guide bar 6's surface cover is equipped with reset spring, reset spring's both ends are supported respectively and are tightly at the opposite face of second connecting block 7 and fixed traction plate 2, be provided with pressure sensor 9 between movable traction plate 3 and the bearing plate 8, pressure sensor 9 can detect the size of pulling force value, the equal screw thread of opposite face of first connecting block 5 and second connecting block 7 is installed go-between 10, through rotating threaded regulation pole 4, adjustable movable traction plate 3 and fixed traction plate 2's interval, in order to adapt to the length of different products of waiting to detect.

The reciprocating driving mechanism comprises a servo motor 11, a rotary disk 12 and a transmission connecting rod 13, wherein the servo motor 11 is fixedly arranged on the lower side of the inspection platform 1, the rotary disk 12 is fixedly connected with a power shaft of the servo motor 11, the end part of the transmission connecting rod 13 is eccentrically and rotatably connected with the rotary disk 12, and the movable traction plate 3 is driven to reciprocate in a linear manner through the transmission connecting rod 13, as shown in fig. 3.

The upper surface of the rotary disk 12 is provided with a guide groove, a threaded screw rod 17 is rotatably mounted in the guide groove, a sliding sleeve 18 is sleeved on the surface of the threaded screw rod 17 in a threaded manner, the sliding sleeve 18 slides along the guide groove, a connecting pin rod 19 is fixedly connected to the surface of the sliding sleeve 18, and the end part of the transmission connecting rod 13 is rotatably connected with the connecting pin rod 19.

The end of the threaded screw rod 17 extends to the outer edge of the rotary disk 12 along the radial direction, and is fixedly connected with a plug sleeve 20, an inner hole of the plug sleeve 20 is of a hexagonal structure, a locking bolt 21 is installed on the lower surface of the rotary disk 12 in a threaded mode, the threaded end of the locking bolt 21 is pressed on the surface of the plug sleeve 20, the plug sleeve 20 is rotated by a wrench, the sliding sleeve 18 is driven to move through rotation of the threaded screw rod 17, the movement radius of the connecting pin rod 19, namely the radius of a track line 24 in fig. 3, is adjusted, and therefore the reciprocating displacement distance of the movable traction plate 3 is adjusted, and the stretching distance of the device can be adjusted according to requirements in the process of detecting tension and compression fatigue performance.

In the use process, a spring to be detected (shown by a dotted line in fig. 1) is arranged on the connecting rings 10 at two sides, the movable traction plate 3 is far away from the fixed traction plate 2, the spring to be detected is stretched, and tension measurement data are detected through the pressure sensor 9 and the displacement sensor.

This tension detection device, through setting up fixed traction plate 2 and activity traction plate 3, the spring that will wait to detect is installed between the two, utilize reciprocating drive mechanism to drive activity traction plate 3 and be close to or keep away from fixed traction plate 2, thereby reach the tensile effect of inspection, through setting up reciprocating drive mechanism, utilize its servo motor 11 to drive rotary disk 12 at uniform velocity rotation, through the transmission of transmission connecting rod 13, drive activity traction plate 3 and install certain frequency and do reciprocating rectilinear motion, wait to survey the spring and compress, tensile detection, make this tension detection device have the function that detects the tension fatigue property, it is more convenient to use.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a pulling force detection device, includes test platform (1), its characterized in that: the inspection platform (1) is fixedly provided with a fixed traction plate (2), the inspection platform (1) is slidably provided with a movable traction plate (3), the inspection platform (1) is internally provided with a reciprocating driving mechanism, and the movable traction plate (3) is driven to linearly reciprocate through the reciprocating driving mechanism;

the device is characterized in that a thread adjusting rod (4) is arranged on the side surface of the fixed traction plate (2) in a threaded manner, a first connecting block (5) is rotatably connected to the end part of the thread adjusting rod (4), a guide rod (6) is slidably arranged on the side surface of the movable traction plate (3), a second connecting block (7) and a bearing plate (8) are fixedly connected to the two ends of the guide rod (6) respectively, a pressure sensor (9) is arranged between the movable traction plate (3) and the bearing plate (8), and a connecting ring (10) is arranged on the opposite surfaces of the first connecting block (5) and the second connecting block (7) in a threaded manner;

the reciprocating driving mechanism comprises a servo motor (11), a rotating disc (12) and a transmission connecting rod (13), wherein the servo motor (11) is fixedly arranged on the lower side of the inspection platform (1), the rotating disc (12) is fixedly connected with a power shaft of the servo motor (11), the end part of the transmission connecting rod (13) is eccentrically and rotatably connected with the rotating disc (12), and the movable traction plate (3) is driven to reciprocate in a linear mode through the transmission connecting rod (13).

2. A tension testing apparatus as recited in claim 1, wherein: the upper surface of inspection platform (1) has seted up the installation spout, and fixed mounting has two parallel arrangement's slip connecting axle (14) in the installation spout, the surface sliding mounting of slip connecting axle (14) has mount pad (15), movable haulage plate (3) fixed mounting is on mount pad (15), the one end that rotary disk (12) was kept away from to transmission connecting rod (13) rotates with mount pad (15) to be connected.

3. A tension testing apparatus as recited in claim 2, wherein: the upper surface of inspection platform inlays and is equipped with grating scale (16), and the lower surface of mount pad (15) inlays and is equipped with displacement sensor, displacement sensor slides along the surface of grating scale (16).

4. A tension testing apparatus according to any one of claims 1-3, wherein: the upper surface of rotary disk (12) has seted up the guide way, and screw thread lead screw (17) are installed to the guide way internal rotation, and the surface thread cover of screw thread lead screw (17) is equipped with sliding sleeve (18), sliding sleeve (18) slide along the guide way, and the fixed surface of sliding sleeve (18) is connected with connecting pin (19), and the tip and the rotation of connecting pin (19) of transmission connecting rod (13) are connected.

5. The tension testing apparatus of claim 4, wherein: the end of the threaded screw rod (17) extends to the outer edge of the rotary disc (12) along the radial direction, and is fixedly connected with a plug sleeve (20), an inner hole of the plug sleeve (20) is of a hexagonal structure, a locking bolt (21) is mounted on the lower surface of the rotary disc (12) in a threaded mode, and the threaded end of the locking bolt (21) is pressed on the surface of the plug sleeve (20).

6. The tension testing apparatus of claim 5, wherein: the end part of the screw thread adjusting rod (4) is fixedly provided with a rocking handle (22), the surface thread of the screw thread adjusting rod (4) is provided with a locking nut (23), the surface of the guide rod (6) is sleeved with a reset spring, and two ends of the reset spring are respectively abutted against the opposite surfaces of the second connecting block (7) and the fixed traction plate (2).