Spring length detection device

Abstract

The utility model provides a spring length detection device, which relates to the technical field of spring length detection and comprises a detection table, a turntable rotationally connected to one side of the top of the detection table, a plurality of positioning sleeves mounted on the outer ring of the top of the turntable, a detection assembly arranged on the detection table, and a rotating assembly used for detecting the length of a spring and arranged at the bottom of the turntable, the power is provided for the turntable to rotate. According to the spring length detection device, the length of the spring can be conveniently and rapidly detected through the detection assembly, the problems of low manual measurement speed and low detection work efficiency are solved, the spring is positioned and detected, the spring is prevented from shaking and shifting, the spring length detection accuracy is improved, and the rotating assembly can conveniently drive the rotating disc and the positioning sleeve to rotate to change positions. In the detection process, power is provided for the spring to rotate, the detection speed of the spring is increased, and the detection of the large production amount of the spring can be dealt with.

Description

Technical Field

[0001] The utility model relates to the technical field of spring length detection, in particular to a spring length detection device. Background Art

[0002] A spring is an elastic element that can store energy and return to its original shape after releasing the energy. It is usually made of metal wire or metal sheet and has a certain elastic modulus and toughness. Springs are widely used in various projects and equipment, such as mechanical equipment, automobiles, bridges, construction, aerospace and other fields. It can be used to store and release energy, absorb vibration and impact, adjust force and position, etc. In the production process of springs, it is necessary to detect the length of the spring to facilitate the classification and placement of springs of the same length. The existing detection methods generally include: ruler measurement, tape measure measurement, vernier caliper measurement, and laser rangefinder measurement. When detecting the length of the spring, it is generally measured manually. Due to the large amount of spring production, the manual measurement method is not only slow, but also reduces the work efficiency of spring detection. In addition, during the manual measurement process, the spring is prone to shaking and shifting, resulting in errors in the length detection of the spring, which will still cause springs of different lengths to be mixed together. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a spring length detection device, which solves the problem that the existing manual measurement method is not only slow, which reduces the working efficiency of spring detection, but also the spring is easy to shake and shift during the manual measurement process, resulting in errors in the spring length detection, and still causes the problem of springs of different lengths being mixed together.

[0004] The technical problem to be solved by the utility model is achieved by adopting the following technical solutions:

[0005] A spring length detection device comprises: a detection platform, a turntable rotatably connected to one side of the top of the detection platform, a plurality of positioning sleeves installed on the outer ring of the top of the turntable, a detection component arranged on the detection platform for detecting the length of the spring, and a rotating component arranged at the bottom of the turntable for providing power to rotate the turntable.

[0006] Preferably, the detection assembly includes: a fixed rod installed on the outside of the turntable, a left clamping plate installed on one side of the top of the fixed rod, a matching right clamping plate installed on one side of the left clamping plate, an over-diameter exclusion sleeve installed between the left clamping plate and the right clamping plate, and the over-diameter exclusion sleeve is located at the top of the positioning sleeve, a proximity switch sensor installed at the bottom end of the positioning sleeve, a fixed frame installed on the outside of the turntable, a detection probe fixedly installed on the outside of the fixed frame, and a length inspection machine fixedly installed on one side of the back of the detection table.

[0007] Preferably, the rotating assembly includes: a servo motor fixedly mounted on one side of the bottom of the detection platform, the driving end of the servo motor is connected to a motor shaft, a driving gear is installed on the outer end of the motor shaft, a rotating rod is installed on the bottom of the turntable, a transmission gear engaged with the driving gear is installed on the bottom of the rotating rod, a rotating hole is opened on the top of the detection platform, and one end of the rotating rod passes through the rotating hole and is fixedly connected to the turntable.

[0008] Preferably, a fixing plate is fixedly installed on one side of the top of the detection platform close to the turntable, and a limiting groove is provided on the top of the fixing plate.

[0009] Preferably, two arc grooves are provided on the inner sides of the left clamping plate and the right clamping plate, two screw holes a are provided on the inner side of the left clamping plate and the outer side of the right clamping plate, fixing screws are threadedly connected to the two screw holes a, a plurality of screw holes b are provided on the outer ring of the top of the turntable, and a threaded head is welded on the bottom end of the positioning sleeve and is threadedly connected to the screw holes b.

[0010] Preferably, an electric control box is fixedly installed on one side of the bottom of the detection table close to the servo motor, a controller is fixedly installed on the outside of the electric control box, and the electric control box is electrically connected to the controller, the servo motor, the proximity switch sensor, the detection probe and the inspection machine through wires.

[0011] Preferably, a sorting box is placed on one side of the bottom end of the back side of the testing table, two partitions are fixedly installed inside the sorting box, and the two partitions divide the interior of the sorting box into a qualified chamber, an upper difference chamber and a lower difference chamber, and grooves are provided on the outside of the sorting box at relative positions to the qualified chamber, the upper difference chamber and the lower difference chamber.

[0012] The beneficial effects of the utility model are:

[0013] (1) The detection component of the utility model facilitates the rapid detection of the length of the spring, solves the problems of slow manual measurement and low detection efficiency, detects the positioning of the spring, prevents the spring from shaking and shifting, and improves the accuracy of the spring length detection.

[0014] (2) The rotating assembly of the utility model can easily drive the turntable and the positioning sleeve to rotate and change their positions. During the detection process, the spring is provided with power to rotate, which speeds up the detection speed of the spring, thereby being able to cope with the detection of large spring production volumes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is an overall cross-sectional schematic diagram of the utility model.

[0017] Figure 3 For the utility model Figure 2 Enlarged schematic diagram at point A in the middle.

[0018] Figure 4 This is a schematic diagram of the connection between the turntable, the turnbar and the servo motor of the utility model.

[0019] Figure 5 It is a schematic diagram of the disassembly structure of the positioning sleeve and the turntable of the utility model.

[0020] Figure 6 It is a schematic diagram of the split structure of the left and right splints of the utility model.

[0021] Figure 7 This is a schematic diagram of the structure of the sorting box of the utility model.

[0022] Figure 1-Figure 7 In: 1. Inspection table; 101. Turntable; 102. Positioning sleeve; 103. Fixing rod; 104. Left clamping plate; 105. Right clamping plate; 106. Over-diameter exclusion sleeve; 107. Proximity switch sensor; 108. Fixing bracket; 109. Inspection probe; 110. Length inspection machine; 2. Fixing plate; 201. Limiting groove; 3. Servo motor; 301. Motor shaft; 302. Driving gear; 303. Rotating rod; 304. Transmission gear; 305. Rotating hole; 4. Arc groove; 401. Screw hole a; 402. Fixing screw; 5. Screw hole b; 6. Threaded head; 7. Electric control box; 701. Controller; 8. Sorting box; 801. Partition; 802. Groove. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making any creative work shall fall within the scope of protection of the present application.

[0024] The present application is described in detail below with reference to the accompanying drawings and specific implementation methods.

[0025] Example

[0026] like Figure 1-Figure 7 As shown, a spring length detection device includes: a detection platform 1, a turntable 101 rotatably connected to one side of the top of the detection platform 1, a plurality of positioning sleeves 102 installed on the outer ring of the top of the turntable 101, a detection component arranged on the detection platform 1, used for detecting the length of the spring, and a rotating component arranged at the bottom of the turntable 101, used for providing power to rotate the turntable 101.

[0027] Among them, the detection component includes: a fixed rod 103 installed on the outside of the turntable 101, a left clamping plate 104 is installed on one side of the top of the fixed rod 103, a matching right clamping plate 105 is installed on one side of the left clamping plate 104, an over-diameter exclusion sleeve 106 installed between the left clamping plate 104 and the right clamping plate 105, and the over-diameter exclusion sleeve 106 is located at the top of the positioning sleeve 102, a proximity switch sensor 107 installed at the bottom end of the positioning sleeve 102, a fixed frame 108 installed on the outside of the turntable 101, a detection probe 109 is fixedly installed on the outside of the fixed frame 108, and a length inspection machine 110 is fixedly installed on one side of the back of the detection table 1.

[0028] When the over-diameter exclusion sleeve 106 is used, the fixed rod 103 and the over-diameter exclusion sleeve 106 are clamped respectively through the arc groove 4 on the inner side of the left clamping plate 104 and the right clamping plate 105, and the left clamping plate 104 and the right clamping plate 105 are connected to the fixed rod 103, and the over-diameter exclusion sleeve 106 is clamped and placed on the top of the positioning sleeve 102, so that the over-diameter exclusion sleeve 106 and the positioning sleeve 102 are aligned, and a fixing frame 108 and a detection probe 109 are installed on the other side of the turntable 101, so that the over-diameter exclusion sleeve 106 and the detection probe 109 are aligned. The measuring probes 109 are arranged in an oblique position. When the length of the spring is detected, the length inspection machine 110 is composed of a display screen, an induction indicator light, a good indicator light, an overlength indicator light, a deviation indicator light, a control button, an adjustment button and a plug. The detection length of the spring is set on the length inspection machine 110 to facilitate detection and comparison. The spring is placed in the over-diameter exclusion sleeve 106. If the spring diameter is larger than the inner diameter of the over-diameter exclusion sleeve 106, the spring cannot be placed in the over-diameter exclusion sleeve 106, indicating that the spring is unqualified.

[0029] When the spring diameter is less than or equal to the inner diameter of the over-diameter exclusion sleeve 106, the spring can be placed inside the over-diameter exclusion sleeve 106, that is, the spring falls from the over-diameter exclusion sleeve 106 to the bottom end of the positioning sleeve 102, so that the spring leaves the over-diameter exclusion sleeve 106 and does not contact the over-diameter exclusion sleeve 106. At this time, the bottom end of the spring contacts the proximity switch sensor 107, and the proximity switch sensor 107 sends the sensed information to the controller 701. After receiving the information, the controller 701 starts the servo motor 3, that is, the servo motor 3 drives the rotating rod 303 to drive the turntable 101 to rotate clockwise by 30°, so that the turntable 101 drives the positioning sleeve 102 and the spring to move to the bottom of the detection probe 109, and the servo motor 3 stops working. A signal transmitter is installed on the outside of the servo motor 3, and the signal transmitter is connected to the detection probe 109 through the signal line It is connected to the plug on the outside of the length inspection machine 110. At this time, the servo motor 3 sends a signal to the length inspection machine 110. After receiving the signal, the length inspection machine 110 starts the detection probe 109. The bottom of the detection probe 109 emits an infrared laser to the bottom end of the positioning sleeve 102. After the infrared laser is reflected, the length of the spring is measured. When the good product indicator light is on, it means that the measured spring length is consistent with the set length, that is, it is a qualified product. When the overlength indicator light is on, it means that the measured spring length is longer than the set length, that is, it is an upper difference product. When the deviation indicator light is on, it means that the measured spring length is shorter than the set length, that is, it is a lower difference product. It is convenient to quickly detect the length of the spring, solve the problems of slow manual measurement and low detection efficiency, detect the spring positioning, prevent the spring from shaking and shifting, and improve the accuracy of spring length detection.

[0030] The model of the proximity switch sensor 107 may be A3212EuA-T, and its working principle is as follows: the proximity switch sensor 107 utilizes the principle of electromagnetic induction. When a conductor (such as a metal sheet) approaches the proximity switch, a current is generated in the conductor due to electromagnetic induction. The change in the current is detected by the proximity switch and triggers the switch action. This type of proximity switch usually includes a primary coil and a secondary coil. After the primary coil is energized, an electromagnetic field is generated in the secondary coil. When a metal object approaches, a current is induced in the secondary coil, thereby changing the magnetic field of the secondary coil, thereby causing the switch to operate. The proximity switch sensor 107 is a mature conventional technology in this technical field, and this solution does not improve the circuit or program of the proximity switch sensor 107. The circuit and signal connection method between the proximity switch sensor 107 and the controller 701 also belongs to the public conventional technology, so the circuit and signal connection relationship will not be repeated.

[0031] A fixing plate 2 is fixedly installed on one side of the top of the testing platform 1 close to the turntable 101 , and a limiting groove 201 is provided on the top of the fixing plate 2 .

[0032] When the spring diameter is larger than the inner diameter of the over-diameter exclusion sleeve 106 and the spring cannot be placed inside the over-diameter exclusion sleeve 106, it means that the spring is an unqualified product. The spring is placed in the limiting groove 201 to prevent the spring from rolling from the test bench 1 to the ground, so as to facilitate the collection and processing of unqualified products.

[0033] Among them, two arc grooves 4 are opened on the inner side of the left clamping plate 104 and the right clamping plate 105, two screw holes a401 are opened on the inner side of the left clamping plate 104 and the outer side of the right clamping plate 105, and the two screw holes a401 are internally threadedly connected with fixing screws 402, a plurality of screw holes b5 are opened on the outer ring of the top of the turntable 101, and a threaded head 6 threadedly connected with the screw hole b5 is welded at the bottom end of the positioning sleeve 102.

[0034] When the over-diameter exclusion sleeve 106 is in use, it is clamped and installed by the left clamping plate 104 and the right clamping plate 105, and the fixing screw 402 is screwed from the screw hole a401 on the outside of the right clamping plate 105 into the screw hole a401 on the inside of the left clamping plate 104, so that the left clamping plate 104 and the right clamping plate 105 are firmly installed. When the positioning sleeve 102 is in use, the threaded head 6 at the bottom end is screwed into the screw hole b5, so that the positioning sleeve 102 is fixed on the turntable 101. When it is necessary to measure springs of different sizes, the over-diameter exclusion sleeve 106 and the positioning sleeve 102 can be flexibly disassembled, and over-diameter exclusion sleeves 106 and positioning sleeves 102 of different sizes can be replaced.

[0035] Among them, a sorting box 8 is placed on one side of the bottom end of the back side of the detection table 1, and two partitions 801 are fixedly installed inside the sorting box 8, and the two partitions 801 divide the inside of the sorting box 8 into a qualified chamber, an upper difference chamber and a lower difference chamber, and grooves 802 are opened at the relative positions of the outer side of the sorting box 8 and the qualified chamber, the upper difference chamber and the lower difference chamber.

[0036] When the sorting box 8 is in use, qualified label plates, upper difference label plates and lower difference label plates are affixed to the corresponding grooves 802 on the outside of the qualified cavity, the upper difference cavity and the lower difference cavity, so that workers can put the tested springs into the corresponding cavities, that is, qualified products are put into the qualified cavity, upper difference products are put into the upper difference cavity, and lower difference products are put into the lower difference cavity, which is convenient for classifying and placing the springs.

[0037] Among them, the rotating component includes: a servo motor 3 fixedly installed on one side of the bottom of the detection platform 1, the driving end of the servo motor 3 is connected to the motor shaft 301, the outer end of the motor shaft 301 is installed with a driving gear 302, a rotating rod 303 installed at the bottom of the turntable 101, the bottom end of the rotating rod 303 is installed with a transmission gear 304 that is meshed with the driving gear 302, a rotating hole 305 is opened at the top of the detection platform 1, and one end of the rotating rod 303 passes through the rotating hole 305 and is fixedly connected to the turntable 101.

[0038] After the controller 701 receives the information and starts the servo motor 3, the servo motor 3 drives the motor shaft 301 and the driving gear 302 to rotate, and the driving gear 302 and the transmission gear 304 engage with each other and rotate, that is, the rotating rod 303 and the turntable 101 are driven to rotate 30° clockwise, so that the turntable 101 drives the positioning sleeve 102 and the spring to move to the bottom of the detection probe 109, and the servo motor 3 stops working, which is convenient for the length detection of the spring inside the positioning sleeve 102. During the detection process, the spring is provided with power to rotate, which speeds up the detection speed of the spring, and thus can cope with the detection of multiple spring production. The rotating rod 303 is located inside the rotating hole 305 to avoid wear between the detection table 1.

[0039] After the length of the spring is tested, the length inspection machine 110 sends a signal to the controller 701. After receiving the signal, the controller 701 starts the servo motor 3 again. The servo motor 3 drives the motor shaft 301 and the driving gear 302 to rotate. The driving gear 302 and the transmission gear 304 engage with each other and rotate, which drives the rotating rod 303 and the turntable 101 to rotate clockwise by another 30°, so that the spring moves out from the bottom of the detection probe 109. The worker can observe that the good product indicator light, the overlength indicator light or the deviation indicator light on the length inspection machine 110 are on, so as to facilitate the placement of the spring into the corresponding qualified cavity, the upper difference cavity and the lower difference cavity.

[0040] Among them, an electric control box 7 is fixedly installed on one side of the bottom of the detection table 1 near the servo motor 3, and a controller 701 is fixedly installed on the outside of the electric control box 7, and the electric control box 7 is electrically connected to the controller 701, the servo motor 3, the proximity switch sensor 107, the detection probe 109 and the inspection machine 110 through wires. When the controller 701, the servo motor 3, the proximity switch sensor 107, the detection probe 109 and the inspection machine 110 are in use, they are respectively connected to the electric control box 7 through wires for power-on use, and the signal transmitter on the outside of the controller 701 and the servo motor 3 is connected to the plug on the outside of the inspection machine 110 through a signal line for electrical signal connection, so that signals can be sent and received for control use, and the control program involved in the utility model can be implemented by those skilled in the art according to the same or similar principles in the prior art, and this part is not the innovation of the utility model.

[0041] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0042] The above is a detailed introduction to a spring length detection device provided in an embodiment of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of ​​the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A spring length detection device, characterized in that: include: Testing station (1); Rotating a turntable (101) connected to one side of the top of the detection platform (1); A plurality of positioning sleeves (102) mounted on the outer ring of the top of the rotating disk (101); A detection component arranged on the detection platform (1) and used for detecting the length of the spring; A rotating assembly arranged at the bottom of the rotating disk (101) is used to provide power for the rotating disk (101) to rotate.

2. The spring length detection device according to claim 1, characterized in that: The detection component comprises: A fixing rod (103) is installed on the outside of the rotating disk (101), a left clamping plate (104) is installed on one side of the top of the fixing rod (103), and a matching right clamping plate (105) is installed on one side of the left clamping plate (104); An over-diameter exclusion sleeve (106) installed between the left clamping plate (104) and the right clamping plate (105), wherein the over-diameter exclusion sleeve (106) is located on the top of the positioning sleeve (102); A proximity switch sensor (107) installed at the bottom end of the positioning sleeve (102); A fixing frame (108) is mounted on the outside of the rotating disk (101), a detection probe (109) is fixedly mounted on the outside of the fixing frame (108), and a length inspection machine (110) is fixedly mounted on one side of the back of the detection platform (1).

3. The spring length detection device according to claim 2, characterized in that: The rotating assembly comprises: A servo motor (3) fixedly mounted on one side of the bottom of the detection platform (1), wherein the driving end of the servo motor (3) is connected to a motor shaft (301), and a driving gear (302) is mounted on the outer end of the motor shaft (301); A rotating rod (303) mounted at the bottom of the rotating disk (101), wherein a transmission gear (304) engaged with the driving gear (302) is mounted at the bottom end of the rotating rod (303); A rotating hole (305) is provided on the top of the detection platform (1), and one end of the rotating rod (303) passes through the rotating hole (305) and is fixedly connected to the rotating disk (101).

4. The spring length detection device according to claim 1, characterized in that: A fixing plate (2) is fixedly mounted on one side of the top of the detection platform (1) close to the rotating disk (101), and a limiting groove (201) is provided on the top of the fixing plate (2).

5. The spring length detection device according to claim 2, characterized in that: The left clamping plate (104) and the right clamping plate (105) are provided with two arc-shaped grooves (4) on their inner sides, and the left clamping plate (104) and the right clamping plate (105) are provided with two screw holes a (401) on their inner sides. The two screw holes a (401) are internally threadedly connected with fixing screws (402). The top outer ring of the turntable (101) is provided with a plurality of screw holes b (5). The bottom end of the positioning sleeve (102) is welded with a threaded head (6) threadedly connected with the screw holes b (5).

6. The spring length detection device according to claim 3, characterized in that: An electric control box (7) is fixedly mounted on one side of the bottom of the detection table (1) near the servo motor (3), a controller (701) is fixedly mounted on the outside of the electric control box (7), and the electric control box (7) is electrically connected to the controller (701), the servo motor (3), the proximity switch sensor (107), the detection probe (109) and the length inspection machine (110) through electric wires.

7. The spring length detection device according to claim 1, characterized in that: A sorting box (8) is placed on one side of the bottom end of the back side of the detection table (1), two partitions (801) are fixedly installed inside the sorting box (8), and the two partitions (801) divide the inside of the sorting box (8) into a qualified chamber, an upper difference chamber and a lower difference chamber, and grooves (802) are provided on the outside of the sorting box (8) at positions relative to the qualified chamber, the upper difference chamber and the lower difference chamber.

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