Spring detection jig

Abstract

A spring detection jig comprises a jig body and a detection device, a plurality of positioning grooves are formed in the jig body at equal intervals, the positioning grooves comprise a first positioning groove set, a second positioning groove set, a third positioning groove and a fourth positioning groove, the third positioning groove is formed in the middle of the jig body, and the fourth positioning groove is formed in the middle of the jig body. First positioning groove sets are symmetrically formed in the two sides of the third positioning groove, second positioning groove sets are formed in the sides, not adjacent to the third positioning groove, of the first positioning groove sets at intervals, the first positioning groove sets are formed in the sides, away from the third positioning groove, of the second positioning groove sets, and a special coating is arranged on the surface of the jig body. The special coating is used for being matched with a detection device to detect the shape of the spring, and the detection device is formed by assembling a workbench, a support, a colorimeter and a conveying belt. Through the colorimeter and the special coating on the surface of the jig body, whether the shape of the spring meets the requirement or not can be detected, manual naked eye recognition is not needed any more, and the recognition efficiency and the long-time recognition accuracy are greatly improved.

Description

Technical Field

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

[0002] A spring is a mechanical part that uses elasticity to work. Parts made of elastic materials deform under external force and return to their original shape after the external force is removed. They are also called "springs". When existing springs are produced, they need to be sampled and tested to ensure product quality. Existing testing devices mostly rely on manual testing, which has low operating efficiency, and the accuracy of the test will fluctuate to a certain extent according to the fatigue level of the tester. When the testing working environment is dim, the test effect will also be reduced, thereby reducing the work efficiency of the test.

[0003] At present, a Chinese patent with the authorization announcement number CN219914830U discloses a jig for spring appearance detection, which relates to the technical field of spring appearance detection. The jig for spring appearance detection includes a first bracket, a second bracket is arranged on one side of the first bracket, a slide groove is provided inside the first bracket and the second bracket, a slider is slidably installed in the slide groove, a workbench is arranged between the first bracket and the second bracket, the outer walls of both sides of the workbench and the slider are fixedly connected, a detector is fixedly installed on the top of the workbench, an adjustment mechanism is arranged below the workbench, a mounting seat is fixedly installed on the top of the workbench, and an auxiliary mechanism is arranged above the workbench. The utility model can adjust the overall height of the workbench, which is suitable for workers with different heights to operate, thereby reducing the use limitations, improving the worker's comfort from the side, and is suitable for the detection of springs of different lengths, and has a good use effect.

[0004] The above-mentioned prior art solution has the following defects: the device relies on manual inspection of the spring appearance. Although it is assisted by a detection fixture, the inspection result is still subjective to a certain extent. Different inspectors may obtain different results. At the same time, fatigue and visual errors will affect the accuracy of the inspection. Utility Model Content

[0005] The purpose of the utility model is to provide a spring detection jig to solve the problems existing in the above-mentioned prior art.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A spring detection jig, comprising a jig body and a detection device, characterized in that: a plurality of positioning grooves are arranged at equal intervals on the jig body, the positioning grooves include a first positioning groove group, a second positioning groove group, a third positioning groove and a fourth positioning groove, the third positioning groove is arranged in the middle of the jig body, the first positioning groove group is symmetrically arranged on both sides of the third positioning groove, the second positioning groove group is arranged at intervals on the side of the first positioning groove group not adjacent to the third positioning groove, and the first positioning groove group is arranged on the side of the second positioning groove group away from the third positioning groove;

[0008] The first positioning groove group includes a first positioning boss, a first receiving groove and a first positioning through groove, the first receiving groove is provided with first positioning through grooves on both sides, and the first receiving groove is provided with a first positioning boss;

[0009] The second positioning groove group includes a second positioning boss, a second receiving groove and a second positioning through groove, the second receiving groove is provided with a second positioning through groove on one side close to the third receiving groove, and the second receiving groove is provided with a second positioning boss;

[0010] The fourth positioning groove is symmetrically arranged on both sides of the third positioning groove and the second positioning groove group;

[0011] The fixture body, the first positioning boss and the second positioning boss are evenly spaced and provided with a plurality of wire grooves;

[0012] A plurality of guide pillars are arranged at equal intervals on the fixture body, a plurality of threaded holes are symmetrically arranged on the left and right edges of the fixture, and a special coating is arranged on the surface of the fixture body, and the special coating is used to cooperate with the detection device to detect the shape of the spring;

[0013] The detection device is assembled from a workbench, a bracket, a colorimeter and a conveyor belt.

[0014] By adopting the above technical solution, the color difference between the colored coating on the spring and the colored coating on the surface of the fixture can be detected with the help of a colorimeter, and the specific shape difference of the spring can be detected based on the difference in color. The detection itself does not require manual identification. The data uploaded by the colorimeter will be analyzed, and then qualified and unqualified products will be obtained on the screen. The batch and data will be displayed on the screen. The inspector only needs to set the spring on the fixture and put the fixture on the conveyor belt.

[0015] In a further embodiment, a bracket is fixedly connected to the top of the workbench, and a plurality of colorimeter are detachably mounted on the bottom of the bracket, and the colorimeter are arranged above the conveyor belt at equal intervals.

[0016] By adopting the above technical solution, the colorimeter and the spring to be tested can be kept vertical to obtain a better field of view for testing.

[0017] In a further embodiment, a plurality of magnets are arranged at equal intervals on the conveyor belt, the magnets are fixedly connected to the conveyor belt, a receiving groove is arranged at the bottom of the jig body, and a magnetic attraction device is embedded in the receiving groove.

[0018] By adopting the above technical solution, the jig may slip or shift in position during transportation on the conveyor belt, which is not conducive to the colorimeter detecting and transmitting data back. However, through the cooperation of the magnet and the magnetic attraction device, the jig body can be fixed and will not move at will during the detection process.

[0019] In a further embodiment, a bracket is provided on one side of the workbench, the bracket is fixedly connected to the workbench, a tray is rotatably mounted on the bracket, and a touch screen is provided on the tray.

[0020] By adopting the above technical solution, the touch screen can simply process the data, and the position of the touch screen can be adjusted by rotating the installed tray, making the use process of the inspection personnel more comfortable and simple.

[0021] In a further embodiment, an emergency stop button is provided at a middle position on one side of the workbench, a start button is provided on one side of the emergency stop button, and a stop button is provided on the other side of the emergency stop button.

[0022] By adopting the above technical solution, the start and stop buttons are used to control the conveyor belt. Under normal circumstances, they do not need to be touched or adjusted. The running speed of the conveyor belt is sufficient to remove defective products. When an accident occurs, it is necessary to immediately press the emergency stop button to avoid further damage.

[0023] In a further embodiment, a plurality of lighting lamps are arranged at equal intervals on the bracket.

[0024] By adopting the above technical solution, the lighting lamp is mainly used to provide sufficient light on the conveyor belt, so that the colorimeter can more clearly and accurately distinguish whether there are any parts of the appearance of the spring that do not meet the requirements.

[0025] In summary, the utility model has the following beneficial effects:

[0026] 1. Through the setting of colorimeter and special coating, the color difference between the inspection fixture on the conveyor belt and the spring body can be checked by the colorimeter set on the bracket, so as to not rely on human eye recognition. The machine can quickly compare the difference between the shape of the spring to be inspected and the shape of the normal spring, and display and record the relevant data through the touch screen. While greatly improving the inspection efficiency, it also improves the inspection accuracy because it will not get tired as quickly as the human eye;

[0027] 2. The magnetic device can cooperate with the magnet on the conveyor belt to prevent the detection fixture from being displaced due to accidental touch or other reasons during transportation on the conveyor belt, thereby affecting the detection results of the colorimeter, and playing the role of quickly locating the detection fixture and fixing the detection fixture;

[0028] 3. The setting of lighting can assist the colorimeter. Since the lighting conditions in the production environment vary, the test results may fluctuate. By setting multiple lighting lamps, the items on the entire conveyor belt can be illuminated, which can enhance the detection effect and improve the accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0030] Figure 2 This is a schematic diagram of the structure of the front side of the detection fixture of the utility model;

[0031] Figure 3 It is a structural schematic diagram used to reflect the back side of the detection fixture in the utility model.

[0032] In the figure, 1. fixture body; 11. guide column; 12. threaded hole; 13. magnetic device; 2. detection device; 21. workbench; 22. bracket; 23. colorimeter; 24. conveyor belt; 25. lighting lamp; 3. first positioning boss; 4. first accommodating groove; 5. first positioning through groove; 6. second positioning boss; 7. second accommodating groove; 8. second positioning through groove; 9. third positioning groove; 10. fourth positioning groove. DETAILED DESCRIPTION

[0033] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0034] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the attached Figure 1 In the description of this specification, the words "bottom" and "top", "inside" and "outside" refer to directions toward or away from a particular component geometry, respectively. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this specification, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0035] Example:

[0036] like Figure 1-2As shown, a spring detection fixture includes a fixture body 1 and a detection device 2. The fixture body 1 is evenly spaced with a plurality of positioning grooves, the positioning grooves include a first positioning groove group, a second positioning groove group, a third positioning groove 9 and a fourth positioning groove 10. The third positioning groove 9 is arranged in the middle position of the fixture body 1. The first positioning groove group is symmetrically arranged on both sides of the third positioning groove 9. The second positioning groove group is arranged at intervals on the side of the first positioning groove group not adjacent to the third positioning groove 9. The first positioning groove group is arranged on the side away from the third positioning groove 9. The first positioning groove group includes a first positioning boss 3, a first receiving groove 4 and a first positioning through groove 5. The first receiving groove 4 is provided with a first positioning through groove 5 on both sides. The first receiving groove 4 is provided with a first positioning boss 3. The second positioning groove group includes a second positioning boss 6, a second receiving groove 7 and a second positioning through groove 8. The second receiving groove 7 is close to the third receiving groove. A second positioning through groove 8 is arranged on the side, a second positioning boss 6 is arranged in the second accommodating groove 7, and the fourth positioning groove 10 is symmetrically arranged on both sides of the third positioning groove 9 and the second positioning groove group. A plurality of wire grooves are evenly spaced on the fixture body 1, the first positioning boss 3 and the second positioning boss 6. A plurality of guide pillars 11 are evenly spaced on the fixture body 1. A plurality of threaded holes 12 are symmetrically arranged on the left and right edges of the fixture. A special coating is arranged on the surface of the fixture body 1. The special coating is used to cooperate with the detection device 2 to detect the shape of the spring. The shape of the detection fixture itself is relatively long, and multiple special-shaped springs can be accommodated at one time. At the same time, it can also better adapt to the detection device. A detachable positioning boss is arranged in the accommodating groove on the detection fixture, and the positioning boss is evenly spaced with multiple wire grooves like the fixture body. These wire grooves facilitate the control terminal to judge whether the detection fixture moves horizontally on the conveyor belt through the colorimeter.

[0037] like Figure 1-3As shown, the detection device 2 is assembled by a workbench 21, a bracket 22, a colorimeter 23 and a conveyor belt 24. The top of the workbench 21 is fixedly connected with the bracket 22, and a plurality of colorimeter 23 is detachably installed at the bottom of the bracket 22. The colorimeter 23 is evenly spaced above the conveyor belt 24. A bracket 22 is arranged on one side of the workbench 21, and a plurality of illuminators 25 are evenly spaced on the bracket 22. The bracket 22 is fixedly connected to the workbench 21, and a tray is rotatably installed on the bracket 22, and a touch screen is arranged on the tray. An emergency stop button is arranged in the middle position of one side of the workbench 21, a start button is arranged on one side of the emergency stop button, and a stop button is arranged on the other side of the emergency stop button. A plurality of magnets are evenly spaced on the conveyor belt 24, and the magnets are connected to the conveyor belt 2 4 is fixedly connected, a receiving groove is provided at the bottom of the fixture body 1, and a magnetic attraction device 13 is embedded in the receiving groove. The detection device 2 mainly relies on the colorimeter 23 to detect the color difference between the surface of the spring body and the surface of the detection fixture. This detection method is efficient and stable, and can effectively avoid fatigue caused by repetitive work and inaccurate detection results. The lighting lamp 25 can improve the lighting environment so that the detection result of the colorimeter 23 will not produce errors and fluctuations due to lighting. The operator only needs to place the spring body on the fixture and then set the fixture on the conveyor belt 24. The total number of springs to be tested, the batches tested per minute, the yield rate and other information can be checked on the touch screen, and the inspection data within a period of time can also be reviewed.

[0038] Specific implementation process: A magnetic device 13 is provided at the bottom of the detection jig. After the spring body is set in the positioning groove on the detection jig, the detection jig is placed on the magnet of the conveyor belt 24. The magnetic device 13 is embedded in the bottom of the detection jig and will not affect the flatness of the detection jig. The detection can be started by pressing the start button. A colorimeter 23 and a lighting lamp 25 are installed on the bracket 22 just above the conveyor belt 24. The lighting lamp 25 is mainly because the lighting conditions in the factory environment are different in brightness. The light of the lighting lamp 25 can play a role of supplementary light to avoid the detection results. Errors and fluctuations, the colorimeter 23 determines whether the shape of the spring body meets the requirements through the difference in color. The color of the spring body is different from the color of the surface of the detection fixture. The surface of the detection fixture is also coated with a special colored coating to facilitate the detection of the colorimeter 23. The test results will be input into the touch screen next to it for easy viewing at any time. When defective products appear, the light color of the lighting lamp 25 will also change, and through the coordination between different lighting lamps 25, the red light will move with the defective product until the operator removes the detection fixture and then returns to white.

[0039] In the embodiments disclosed in the present invention, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connect" can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the embodiments disclosed in the present invention can be understood according to specific circumstances.

[0040] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A spring testing jig, comprising a jig body (1) and a testing device (2), characterized in that: The fixture body (1) is provided with a plurality of positioning grooves at equal intervals, the positioning grooves comprising a first positioning groove group, a second positioning groove group, a third positioning groove (9) and a fourth positioning groove (10), the third positioning groove (9) being provided at a middle position of the fixture body (1), the first positioning groove group being symmetrically provided on both sides of the third positioning groove (9), the second positioning groove group being provided at intervals on the side of the first positioning groove group not adjacent to the third positioning groove (9), and the first positioning groove group being provided on the side of the second positioning groove group away from the third positioning groove (9); The first positioning groove group comprises a first positioning boss (3), a first receiving groove (4) and a first positioning through groove (5); the first receiving groove (4) is provided with first positioning through grooves (5) on both sides; and the first receiving groove (4) is provided with a first positioning boss (3); The second positioning groove group comprises a second positioning boss (6), a second receiving groove (7) and a second positioning through groove (8); the second receiving groove (7) is provided with a second positioning through groove (8) on a side close to the third receiving groove; and the second positioning boss (6) is provided in the second receiving groove (7); The fourth positioning groove (10) is symmetrically arranged on both sides of the third positioning groove (9) and the second positioning groove group; A plurality of wire grooves are evenly spaced on the fixture body (1), the first positioning boss (3) and the second positioning boss (6); A plurality of guide pillars (11) are arranged at equal intervals on the jig body (1), a plurality of threaded holes (12) are symmetrically arranged at the left and right edges of the jig, and a special coating is arranged on the surface of the jig body (1), and the special coating is used to cooperate with the detection device (2) to detect the shape of the spring; The detection device (2) is assembled from a workbench (21), a bracket (22), a colorimeter (23) and a conveyor belt (24).

2. A spring testing jig according to claim 1, characterized in that: A bracket (22) is fixedly connected to the top of the workbench (21), and a plurality of colorimeter (23) are detachably mounted on the bottom of the bracket (22), and the colorimeter (23) is arranged above the conveyor belt (24) at equal intervals.

3. A spring testing fixture according to claim 2, characterized in that: A plurality of magnets are arranged at equal intervals on the conveyor belt (24), and the magnets are fixedly connected to the conveyor belt (24). A receiving groove is arranged at the bottom of the jig body (1), and a magnetic attraction device (13) is embedded in the receiving groove.

4. A spring testing jig according to claim 2, characterized in that: A bracket (22) is provided on one side of the workbench (21), the bracket (22) is fixedly connected to the workbench (21), a tray is rotatably mounted on the bracket (22), and a touch screen is provided on the tray.

5. A spring testing jig according to claim 4, characterized in that: An emergency stop button is arranged in the middle of one side of the workbench (21), a start button is arranged on one side of the emergency stop button, and a stop button is arranged on the other side of the emergency stop button.

6. A spring testing jig according to claim 2, characterized in that: A plurality of lighting lamps (25) are arranged at equal intervals on the bracket (22).

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