Spring tension testing device

Abstract

The utility model relates to a spring tension testing device which comprises an equipment plate, and a tension mechanism is arranged on the equipment plate. According to the spring tension testing device, the tension mechanism is arranged, firstly, a slow-speed servo motor drives a threaded rod on a bearing to stably rotate, then the threaded rod, a threaded sleeve and a movable plate generate a linkage effect while rotating, and at the moment, the movable plate can move left and right; and finally, after the interval between the movable plate and the tension inductor is changed, the spring fixed on the fixed assembly is stretched, and the tension inductor can test and record the tension of the spring at the same time, so that the mechanism ensures the stability of the tension test by moving the movable plate on the threaded rod; the condition that the spring possibly deviates and shakes when the spring is stretched can be effectively avoided, meanwhile, the accuracy of test data can be effectively guaranteed, and the practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to spring tension test technical field, concretely is a spring tension testing device. BACKGROUND

[0002] Spring tension testing device is a kind of equipment for measuring spring tension, it determines its tension characteristic by exerting force and measuring the deformation of spring, and this kind of equipment is widely used in industrial production, for ensuring the quality and performance of product, spring tension testing device can perform tensile test, compression test and bending test, obtains elongation, elongation rate, stress, strain and other test results and test data.

[0003] At present, existing spring tension testing device is various, for example, China patent No. CN202222400703.6 a kind of spring tension testing equipment, the patent includes test frame, the inside fixed connection of test frame is limit rod, the surface of limit rod is slidably connected with push frame, the side surface of push frame is fixedly connected with fixed hydraulic rod, the one end of fixed hydraulic rod is fixedly connected in test frame, the surface of limit rod is slidably connected with sliding seat, the side surface of sliding seat is fixedly connected with adjusting hydraulic rod, the one end of adjusting hydraulic rod is fixedly connected in test frame, the utility model is fixed hydraulic rod, plug-in rod, limit groove and adjusting hydraulic rod are used in cooperation, to facilitate staff to be fixed and used, to avoid the instability during fixing, leading to test, easy to produce drop, delay use effect, but the device in actual scene uses, since spring both ends are not fixed, it is easy to make spring shake and displace when being stretched, and then affect test efficiency and accuracy. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of prior art, the utility model provides a kind of spring tension testing device, with the advantage of stable test, solve the problem of poor test efficiency and accuracy of the equipment.

[0005] To realize the above-mentioned stable test purposes, the utility model provides the following technical solutions: a kind of spring tension testing device, including equipment plate, the equipment plate is provided with tension mechanism, the equipment plate and is fixedly installed with guardrail plate on the rear side of tension mechanism, the top of guardrail plate is hinged with protective cover;

[0006] The tension mechanism comprises a deceleration servo motor and a concave fixed block, the deceleration servo motor and the concave fixed block are fixedly installed on the equipment plate, a bearing is fixedly installed on the left side of the concave fixed block, a threaded rod connected with the output end of the deceleration servo motor is fixedly connected to the inner wall of the bearing, a threaded sleeve is threadedly connected to the outer wall of the threaded rod, a movable plate is fixedly connected to the outer wall of the threaded sleeve, a tension sensor is arranged above the concave fixed block, and fixed assemblies are arranged on the sensing end of the tension sensor and the side of the movable plate close to the tension sensor.

[0007] Further, two guide sliding plates extending into the guardrail plate are fixedly installed on the movable plate, and two T-shaped limiting plates extending into the equipment plate are fixedly installed on the bottom of the movable plate.

[0008] Further, two guide sliding grooves matched with the guide sliding plates are formed in the side of the guardrail plate close to the movable plate, and the inner wall of the guide sliding groove is in sliding connection with the outer wall of the guide sliding plate.

[0009] Further, two T-shaped sliding grooves matched with the T-shaped limiting plates are formed in the side of the equipment plate close to the bottom of the movable plate, and the inner wall of the T-shaped sliding groove is in sliding connection with the outer wall of the T-shaped limiting plate.

[0010] Further, one end of the threaded rod on the left side is fixedly connected with the output end of the deceleration servo motor.

[0011] Further, the two fixed assemblies are composed of a stud, a fixed sleeve and a limiting bolt.

[0012] Further, a controller is arranged on the equipment plate and in front of the deceleration servo motor.

[0013] Further, a scale is arranged on the equipment plate and in front of the tension mechanism, and a scale needle matched with the scale is fixedly installed on the front side of the movable plate.

[0014] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0015] 1. The spring tension testing device, by setting the tension mechanism, first, the slow servo motor drives the threaded rod on the bearing to produce stable rotation, then the threaded rod rotates simultaneously with the threaded sleeve and the movable plate linkage effect, at this time the movable plate can move left and right, finally when the interval between the movable plate and the tension sensor changes, the spring fixed on the fixed assembly will be stretched, at the same time the tension sensor can complete the test and record the spring tension, so that the mechanism moves the movable plate on the threaded rod to ensure the stability of the tension test, which can effectively avoid the offset and shaking of the spring when it is stretched, and also effectively guarantee the accuracy of the test data, which is very practical. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a structural front view of the utility model;

[0018] Figure 3 It is a tension mechanism schematic diagram of the utility model;

[0019] Figure 4 It is a movable plate schematic diagram of the utility model.

[0020] In the drawing: 1, equipment plate; 2, tension mechanism; 201, slow servo motor; 202, concave fixed block; 203, bearing; 204, threaded rod; 205, threaded sleeve; 206, movable plate; 207, tension sensor; 2071, guide slide plate; 2072, T-shaped limit plate; 208, fixed assembly; 3, guardrail plate; 4, protective cover; 5, controller; 6, scale needle; 7, scale. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0022] Please refer to Figures 1-4 A kind of spring tension testing device in the embodiment, including equipment plate 1, equipment plate 1 is provided with tension mechanism 2, equipment plate 1 is fixedly installed with guardrail plate 3 on the rear side of tension mechanism 2;

[0023] The tension mechanism 2 comprises a deceleration servo motor 201 and a concave fixed block 202, the deceleration servo motor 201 and the concave fixed block 202 are fixedly installed on the equipment plate 1, the left side of the concave fixed block 202 is fixedly installed with a bearing 203, the inner wall of the bearing 203 is fixedly connected with a threaded rod 204 connected with the output end of the deceleration servo motor 201, wherein the left side of the threaded rod 204 is fixedly connected with the output end of the deceleration servo motor 201, so that the deceleration servo motor 201 drives the threaded rod 204 on the bearing 203 to rotate stably, the outer wall of the threaded rod 204 is threadedly connected with a threaded sleeve 205, the outer wall of the threaded sleeve 205 is fixedly connected with a movable plate 206, and the movable plate 206 is fixedly installed with two guide sliding plates 2061 extending into the guardrail plate 3, the bottom of the movable plate 206 is fixedly installed with two T-shaped limiting plates 2062 extending into the equipment plate 1, wherein the side of the guardrail plate 3 close to the movable plate 206 is provided with two guide sliding grooves matched with the guide sliding plates 2061, and the inner wall of the guide sliding groove is slidably connected with the outer wall of the guide sliding plate 2061, and the side of the equipment plate 1 close to the bottom of the movable plate 206 is provided with two T-shaped sliding grooves matched with the T-shaped limiting plates 2062, and the inner wall of the T-shaped sliding groove is slidably connected with the outer wall of the T-shaped limiting plate 2062, then the threaded rod 204 rotates and links with the threaded sleeve 205 and the movable plate 206, at this time the movable plate 206 can move left and right, the top of the concave fixed block 202 is provided with a tension sensor 207, the sensing end of the tension sensor 207 and the side of the movable plate 206 close to the tension sensor 207 are provided with fixed assemblies 208, finally when the interval between the movable plate 206 and the tension sensor 207 changes, the spring fixed on the fixed assembly 208 is stretched, at the same time the tension sensor 207 can test and record the tension of the spring, so that the mechanism moves the movable plate 206 on the threaded rod 204 to ensure the stability of the tension test, which can effectively avoid the deviation and shaking of the spring when it is stretched, and can effectively ensure the accuracy of the test data, and has high practicability.

[0024] In the case implementation, the top end of the guardrail plate 3 is hinged with a protective cover 4, which can be used to deal with the spring breakage in tension detection to avoid injury to the staff.

[0025] In the case implementation, the two fixed assemblies 208 are composed of a stud, a fixed sleeve and a limiting bolt component, during the fixing of the spring, first move the fixed sleeve on the stud to one side to make the stud fully exposed, then sleeve the two ends of the spring on the two studs respectively, then sleeve the fixed sleeve on the stud again, and make the hole on the stud align with the hole on the fixed sleeve, finally pass the limiting bolt into the holes to complete the fixing work.

[0026] In the implementation of the case, a controller 5 is provided on the device board 1 and in front of the slow servo motor 201. The controller 5 is electrically connected to the electronic components in this patent through wires, so as to facilitate the operation of the controller 5 to control the operation of the electronic components.

[0027] In the implementation of the case, a scale 7 is provided on the equipment plate 1 and located in front of the tension mechanism 2. A scale needle 6 that matches the scale 7 is fixedly installed on the front of the movable plate 206. This design allows the staff to record the extension length of the spring more intuitively, and it is very practical.

[0028] When implementing this procedure, please follow these steps:

[0029] 1) First, fix the spring to be tested onto the two fixing components 208;

[0030] 2) Then start the tension mechanism 2, and the slow servo motor 201 will drive the threaded rod 204 on the bearing 203 to rotate stably;

[0031] 2) Then, as the threaded rod 204 rotates, it will have a linkage effect with the threaded sleeve 205 and the movable plate 206. At this time, the movable plate 206 can move left and right.

[0032] 3) Finally, when the gap between the movable plate 206 and the tension sensor 207 changes, the spring fixed on the fixed component 208 will be stretched, and at the same time the tension sensor 207 can complete the test and record of the spring tension.

[0033] In summary, this spring tension testing device, by setting up a tension mechanism 2, firstly, the slow-speed servo motor 201 drives the threaded rod 204 on the bearing 203 to rotate stably. Then, as the threaded rod 204 rotates, it creates a linkage effect with the threaded sleeve 205 and the movable plate 206. At this time, the movable plate 206 can move left and right. Finally, when the interval between the movable plate 206 and the tension sensor 207 changes, the spring fixed on the fixed component 208 will be stretched. At the same time, the tension sensor 207 can complete the test and record the tension of the spring. Thus, this mechanism ensures the stability of the tension test by moving the movable plate 206 on the threaded rod 204, which can effectively avoid the spring from shifting and shaking when stretched, and also effectively ensure the accuracy of the test data. It is highly practical and solves the problem that in actual use, since the two ends of the spring are not fixed, the spring is prone to shaking and displacement when stretched, which affects the test efficiency and accuracy.

[0034] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it is intended to be limited only by the words recited in the appended claims. The scope of the present application shall be limited only by the claims.

[0035] While the embodiments of the present application have been shown and described with respect to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application. Therefore, the scope of the application should not be limited by the embodiments, but should be defined only in accordance with the following claims and their equivalents.

Claims

1. A spring tension testing device comprising a device plate (1), characterized in that: The device plate (1) is provided with a tension mechanism (2), the rear side of the device plate (1) is fixedly provided with a guardrail plate (3), and the top end of the guardrail plate (3) is hingedly provided with a protective cover (4). The tension mechanism (2) comprises a deceleration servo motor (201) and a concave fixed block (202), the device plate (1) is fixedly provided with the deceleration servo motor (201) and the concave fixed block (202), the left side of the concave fixed block (202) is fixedly provided with a bearing (203), the inner wall of the bearing (203) is fixedly connected with a threaded rod (204) connected with the output end of the deceleration servo motor (201), the outer wall of the threaded rod (204) is threadedly connected with a threaded sleeve (205), the outer wall of the threaded sleeve (205) is fixedly connected with a movable plate (206), the upper side of the concave fixed block (202) is provided with a tension sensor (207), and the sensing end of the tension sensor (207) is provided with a fixed assembly (208) on the side close to the movable plate (206).

2. A spring tension testing device according to claim 1, wherein: The movable plate (206) is fixedly provided with two guide sliding plates (2061) extending into the guardrail plate (3), and the bottom of the movable plate (206) is fixedly provided with two T-shaped limiting plates (2062) extending into the device plate (1).

3. A spring tension testing device according to claim 2, wherein: The side of the guardrail plate (3) close to the movable plate (206) is provided with two guide sliding grooves matched with the guide sliding plates (2061), and the inner wall of the guide sliding groove is slidably connected with the outer wall of the guide sliding plate (2061).

4. A spring tension testing device as claimed in claim 2, wherein: The side of the device plate (1) close to the bottom of the movable plate (206) is provided with two T-shaped sliding grooves matched with the T-shaped limiting plates (2062), and the inner wall of the T-shaped sliding groove is slidably connected with the outer wall of the T-shaped limiting plate (2062).

5. The spring tension testing device of claim 1, wherein: The left end of the threaded rod (204) is fixedly connected with the output end of the deceleration servo motor (201).

6. A spring tension testing device as defined in claim 1, wherein: The two fixed assemblies (208) are composed of a stud, a fixed sleeve and a limiting bolt.

7. A spring tension testing device as defined in claim 1, wherein: The front side of the device plate (1) is provided with a controller (5).

8. A spring tension testing device as claimed in claim 2, wherein: The front side of the device plate (1) is provided with a scale (7), and the front side of the movable plate (206) is fixedly provided with a scale needle (6) matched with the scale (7).

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