Performance detection device for spring production

Abstract

The utility model provides a performance detection device for spring production, which relates to the technical field of spring detection and comprises a detection table, a fixed locking mechanism is arranged in the detection table and comprises a rotating rod, the lower end of the rotating rod is rotatably connected with the inner bottom wall of the detection table through a bearing, and a worm gear is fixedly sleeved outside the rotating rod. Through the fixing and locking mechanism, the arc-shaped clamping block clamps the spring by using worm gear and worm transmission and an inclined groove structure and rotating the hand wheel, the self-locking characteristic of the worm gear and worm prevents fixing looseness caused by the reactive force of the spring, the spring is stably fixed, and it is ensured that detection is conducted smoothly. The pressure sensor accurately records the pressure value when the spring is fractured, the laser range finder accurately measures the deformation distance of the spring, accurate data is provided for evaluating the performance of the spring, the protective cylinder can effectively prevent fragments from splashing when the spring is fractured, the safety of operators is guaranteed, and the effect that surrounding equipment is not damaged is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to spring detection technical field especially relates to a performance detection device for spring production. BACKGROUND

[0002] Spring is a kind of mechanical parts that works by elasticity, and the parts made of elastic material are deformed under the action of external force, and restore to original shape after removing the external force, generally made of spring steel, after spring production, before use, it must pass through strict test to put into use, under the premise that performance does not reach the requirement, under the large load, spring is easy to break, therefore, it needs to carry out load detection, and the spring is easy to slide off the lower end under the action of pressure during detection, which affects the detection efficiency.

[0003] For example, a spring load detection device for spring production (publication number: CN217211909U) is disclosed in Chinese patent documents, which is placed between the plurality of fixed plates, the hand wheel is rotated, the transmission gear and the transmission tooth plate are connected through the meshing connection, the transmission tooth plate is driven, the transmission groove and the transmission column drive the plurality of transmission sliding blocks, clamping rods and fixed plates along the sliding groove to slide to the spring center direction and self-positioning fixed clamping of the spring, so that the device can fix and clamp and load detection of the spring of various diameters.

[0004] However, the spring will bear great pressure during detection, according to the principle that force is mutual, the lower end will exert strong counterforce to the outside. The counterforce will be transmitted to the transmission sliding block through the fixed plate, and then act on the transmission tooth plate, when the counterforce of the lower end of the spring reaches a certain degree, the transmission tooth plate will be forced to reverse, at this time, the fixed plate loses the fixed clamping effect on the bottom of the spring, and the spring is easy to separate during detection, which will first cause the detection process to be interrupted, and the spring needs to be adjusted and fixed again, which seriously affects the detection efficiency, secondly, during the separation of the spring, the data recorded by the detection equipment will deviate or be wrong, which cannot accurately reflect the performance of the spring under normal load, and then greatly affects the accuracy of the detection result. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcomings in the prior art, and the current spring is easy to separate during detection, which not only affects the detection efficiency, but also affects the accuracy of the detection result.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a performance detection device for spring production, including detection table, the inside of detection table is provided with fixed locking mechanism, and fixed locking mechanism includes rotating lever, the lower extreme of rotating lever is connected with the inner bottom wall rotation of detection table through bearing,

[0008] The outer fixed sleeve of rotating lever has a worm gear, the upper end of rotating lever is fixedly connected with a driving disc, the upper end of driving disc is provided with an inclined slot in the form of annular array, the rear inner wall of detection table is rotatably connected with a worm through a bearing, the outer surface of worm is engaged with the tooth surface of worm gear, one end of worm penetrates through the front surface of detection table and is fixedly connected with a hand wheel,

[0009] The upper side of detection table is provided with detection mechanism.

[0010] Preferably, the upper end of the detection table is provided with a travel slot in the form of annular array, the inner wall of the travel slot is slidably connected with a moving block, and the lower end of the moving block is fixedly connected with a slide rod.

[0011] Preferably, the outer surface of the slide rod is slidably connected with the inner wall of the inclined slot, one side of the moving block is fixedly connected with an extension block, one end of the extension block is fixedly connected with an arc-shaped clamping block, and the upper end of the detection table is fixedly connected with a placement table.

[0012] Preferably, the detection mechanism includes a fixed support, both ends of the fixed support are fixedly connected with the upper end of the detection table, and the inner wall of the upper end of the fixed support is slidably connected with symmetrically distributed guide rods.

[0013] Preferably, the lower end of each of the two guide rods is fixedly connected with a protective cylinder, the outer surface of the protective cylinder is provided with an observation window, and the lower end of the protective cylinder is provided with an avoidance slot in the form of annular array.

[0014] Preferably, the inner wall of the protective cylinder is provided with symmetrically distributed guide sliding grooves, the inner wall of each guide sliding groove is slidably connected with a guide sliding block, the opposite surfaces of the two guide sliding blocks are fixedly connected with lifting blocks, and the lower end of each lifting block is fixedly installed with a pressure sensor.

[0015] Preferably, the lower end of the pressure sensor is fixedly connected with a pressing block, the lower end of the pressing block is provided with a protective slot, the inner top wall of the protective slot is fixedly installed with a laser range finder, the upper end of the fixed support is fixedly installed with a hydraulic cylinder, and one end of the piston rod of the hydraulic cylinder penetrates through the protective cylinder and is fixedly connected with the upper end of the lifting block.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] In this invention, a locking mechanism is used to clamp the spring by rotating a handwheel through a worm gear transmission and a slanted groove structure. The self-locking characteristic of the worm gear prevents the spring's reaction force from causing the fixation to loosen, thus stabilizing the spring and ensuring smooth testing. Furthermore, a pressure sensor accurately records the pressure value when the spring breaks, and a laser rangefinder accurately measures the spring's deformation distance, providing accurate data for evaluating the spring's performance. The protective sleeve effectively prevents fragments from flying when the spring breaks, ensuring the safety of operators and preventing damage to surrounding equipment. Attached Figure Description

[0018] Figure 1 A schematic diagram of the main structure of a performance testing device for spring production provided by this utility model;

[0019] Figure 2 A perspective view of the drive disc structure of a performance testing device for spring production provided by this utility model;

[0020] Figure 3 A three-dimensional view of the testing platform structure of a performance testing device for spring production provided by this utility model;

[0021] Figure 4 A perspective view of the protective cylinder structure of a performance testing device for spring production provided by this utility model;

[0022] Figure 5 An exploded view of the pressure block structure of a performance testing device for spring production provided by this utility model.

[0023] Legend: 1. Testing table; 2. Rotating rod; 21. Worm gear; 22. Drive disc; 23. Inclined groove; 24. Worm; 25. Handwheel; 26. Stroke groove; 27. Moving block; 28. Slide rod; 29. ​​Extension block; 210. Arc-shaped clamping block; 211. Placement table; 3. Fixed bracket; 31. Guide rod; 32. Protective cylinder; 33. Observation window; 34. Clearance groove; 35. Guide slide groove; 36. Guide slider; 37. Lifting block; 38. Pressure sensor; 39. Pressure block; 310. Protective groove; 311. Laser rangefinder; 312. Hydraulic cylinder. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Example

[0029] like Figures 1-5 As shown, this utility model provides a technical solution: a performance testing device for spring production, including a testing platform 1. The testing platform 1 carries a fixing and locking mechanism and a testing mechanism. The fixing and locking mechanism is used to securely fix the spring, while the testing mechanism is responsible for testing the performance of the spring.

[0030] The testing platform 1 is made of sturdy metal material, which has good strength and stability. It is equipped with a fixed locking mechanism. The lower end of the rotating rod 2 is rotatably connected to the inner bottom wall of the testing platform 1 through a high-precision bearing. This connection method can ensure that the rotating rod 2 rotates smoothly and stably. One end of the worm gear 24 is rotatably connected to the rear inner wall of the testing platform 1 through a bearing, and the other end passes through to the front of the testing platform 1 and is fixedly connected to the handwheel 25 by welding or keying.

[0031] The upper end of the testing table 1 is provided with stroke grooves 26 arranged in a ring array by machining. The inner wall of the stroke grooves 26 is connected to the moving block 27 by sliding fit. The lower end of the moving block 27 is fixedly connected with a slide rod 28 by welding or bolting. The upper end of the testing table 1 is also fixedly connected with a placement platform 211 by welding or bolting for placing the spring to be tested.

[0032] The outside of the rotating rod 2 is fixedly sleeved with a worm gear 21 by interference fit or key connection. The upper end of the rotating rod 2 is fixedly connected with a drive disk 22 by welding or key connection. The upper end of the drive disk 22 is machined to have inclined grooves 23 distributed in a ring array. The outer surface of the worm 24 and the tooth surface of the worm gear 21 are precisely meshed to achieve reliable meshing. This worm gear transmission has self-locking characteristics.

[0033] The outer surface of the slide bar 28 is connected to the inner wall of the inclined groove 23 by a sliding fit. One side of the moving block 27 is fixedly connected to the extension block 29 by welding or bolting. One end of the extension block 29 is fixedly connected to the arc-shaped clamping block 210 by welding or bolting. The arc-shaped clamping block 210 is used to clamp the spring.

[0034] The fixed bracket 3 is made of high-strength metal. Its two ends are fixedly connected to the upper end of the test bench 1 by welding or bolting. The upper inner wall of the fixed bracket 3 is connected to the guide rod 31 by sliding sleeve. The lower end of the guide rod 31 is fixedly connected to the protective cylinder 32 by welding or bolting.

[0035] The protective cylinder 32 is made of a sturdy and transparent protective material. Its exterior is fixed by adhesive or slots and has an observation window 33 for easy observation of the internal situation by the operator. The lower end of the protective cylinder 32 is machined to have a circular array of clearance grooves 34. The clearance grooves 34 do not affect the operation of the arc-shaped clamping block 210. The inner wall of the protective cylinder 32 is machined to have symmetrically distributed guide grooves 35. The inner wall of the guide grooves 35 is connected to the guide slider 36 by sliding fit. The surface of the guide slider 36 is fixed to the lifting block 37 by welding or bolt connection.

[0036] A pressure sensor 38 is installed at the lower end of the lifting block 37 by means of screws or adhesive. A pressure block 39 is fixedly connected at the lower end of the pressure sensor 38 by means of welding or bolts. A protective groove 310 is machined at the lower end of the pressure block 39. A laser rangefinder 311 is installed on the inner top wall of the protective groove 310 by means of screws or adhesive. A hydraulic cylinder 312 is installed at the upper end of the fixed bracket 3 by means of screws. One end of the piston rod of the hydraulic cylinder 312 passes through the protective cylinder 32 and is fixedly connected to the upper end of the lifting block 37 by means of welding or bolts.

[0037] The working process of this utility model:

[0038] Step 1: Before testing the spring performance, place the spring on the placement platform 211. The operator turns the handwheel 25, which drives the worm 24 to rotate. Since the worm 24 is precisely meshed with the worm wheel 21, the rotation of the worm 24 causes the worm wheel 21 to drive the rotating rod 2 and the drive disk 22 to rotate. The inclined groove 23 on the drive disk 22 slides with the slide rod 28, pushing the slide rod 28, the moving block 27, the extension block 29 and the arc-shaped clamping block 210 to move. The arc-shaped clamping block 210 gradually approaches and clamps the lower outer part of the spring. The self-locking characteristics of the worm wheel 21 and the worm 24 ensure that the fixed structure will not loosen due to the reaction force of the spring when the spring is under force, thereby achieving stable fixation of the spring.

[0039] Step two: After the spring is fixed, start the hydraulic cylinder 312. The piston rod of the hydraulic cylinder 312 first pushes the protective cylinder 32 down along the guide rod 31 until the protective cylinder 32 completely covers the spring, protecting it and preventing fragments from flying when the spring breaks. Continue operating the hydraulic cylinder 312, and the piston rod pushes the lifting block 37 down along the guide groove 35. The pressure block 39 gradually contacts the spring and applies pressure. During this process, the pressure sensor 38 monitors the pressure value in real time, and the laser rangefinder 311 measures the deformation distance of the spring in real time. When the spring breaks, the pressure sensor 38 records the pressure value at this time, and the laser rangefinder 311 records the deformation distance of the spring. The operator can observe the state of the spring through the observation window 33. After the test is completed, the piston rod of the hydraulic cylinder 312 retracts, first driving the lifting block 37 to rise, then driving the protective cylinder 32 to rise, and finally removing the spring.

[0040] Although embodiments of the present invention 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 to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A performance testing device for spring production, comprising a testing table (1), characterized in that: The testing platform (1) is equipped with a fixing and locking mechanism, which includes a rotating rod (2). The lower end of the rotating rod (2) is rotatably connected to the inner bottom wall of the testing platform (1) through a bearing. The rotating rod (2) is fixedly sleeved with a worm gear (21), and the upper end of the rotating rod (2) is fixedly connected with a drive disk (22). The upper end of the drive disk (22) is provided with inclined grooves (23) arranged in a ring array. The rear inner wall of the detection table (1) is rotatably connected with a worm (24) through a bearing. The outer surface of the worm (24) meshes with the tooth surface of the worm gear (21). One end of the worm (24) extends through to the front of the detection table (1) and is fixedly connected with a handwheel (25). A testing mechanism is provided above the testing station (1).

2. The performance testing device for spring production according to claim 1, characterized in that: The upper end of the testing platform (1) is provided with stroke grooves (26) arranged in a ring array. The inner wall of the stroke grooves (26) is slidably connected to a moving block (27), and the lower end of the moving block (27) is fixedly connected to a slide rod (28).

3. The performance testing device for spring production according to claim 2, characterized in that: The outer surface of the slide bar (28) is slidably connected to the inner wall of the inclined groove (23). An extension block (29) is fixedly connected to one side of the moving block (27). An arc-shaped clamping block (210) is fixedly connected to one end of the extension block (29). A placement platform (211) is fixedly connected to the upper end of the detection table (1).

4. The performance testing device for spring production according to claim 1, characterized in that: The testing mechanism includes a fixed bracket (3), both ends of which are fixedly connected to the upper end of the testing table (1). The upper inner wall of the fixed bracket (3) is slidably fitted with guide rods (31) that are symmetrically distributed.

5. The performance testing device for spring production according to claim 4, characterized in that: The lower ends of the two guide rods (31) are fixedly connected to protective cylinders (32), and the outer side of the protective cylinders (32) is provided with observation windows (33). The lower end of the protective cylinders (32) is provided with clearance grooves (34) arranged in a ring array.

6. The performance testing device for spring production according to claim 5, characterized in that: The inner wall of the protective cylinder (32) is provided with symmetrically distributed guide grooves (35). The inner wall of the guide grooves (35) is slidably connected with guide sliders (36). Lifting blocks (37) are fixedly connected to the opposing surfaces of the two guide sliders (36). A pressure sensor (38) is fixedly installed at the lower end of the lifting block (37).

7. The performance testing device for spring production according to claim 6, characterized in that: The lower end of the pressure sensor (38) is fixedly connected to a pressure block (39), and the lower end of the pressure block (39) is provided with a protective groove (310). A laser rangefinder (311) is fixedly installed on the inner top wall of the protective groove (310). A hydraulic cylinder (312) is fixedly installed on the upper end of the fixed bracket (3). One end of the piston rod of the hydraulic cylinder (312) passes through the protective cylinder (32) and is fixedly connected to the upper end of the lifting block (37).

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