Spring parallelism detection device

Abstract

The utility model discloses a spring parallelism detection device, comprising a blanking mechanism used for automatically blanking a spring; the detection mechanism is arranged below the discharging end of the discharging mechanism, the detection mechanism comprises a detection part, the detection part comprises a first plate and a second plate which are oppositely arranged, and the first plate and the second plate form a channel for a spring to pass through. According to the scheme, a sampling detection mode can be replaced to detect all products of the spring, and the risk that defective products flow out is reduced.

Description

Technical Field

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

[0002] A spring is a mechanical part made of elastic material that works by using elasticity. It deforms under the action of external force and returns to its original shape after the external force is removed. Springs are generally made of spring steel. There are many types of springs. According to their shapes, they mainly include helical springs, scroll springs, leaf springs, special-shaped springs, etc.

[0003] like Figure 1 A spring shown includes a first end 110 and a second end 120 relative to each other, wherein the parallelism of the first end 110 and the second end 120 affects the installation and working performance of the spring, and is a key controlled dimension. In order to prevent springs with poor parallelism at both ends from flowing out to customers, spring manufacturers usually need to test this dimension. The traditional detection method is regular and fixed-point sampling. Specifically, quality inspectors take a certain amount of samples at a specified time, and then use optical detectors and other equipment to test the parallelism of the springs. Due to the low detection efficiency of optical detectors, personnel cannot test a large number of products in a short period of time. Therefore, the number of samples taken by quality inspectors is usually not large, which leads to large errors in the sampling test results, and then leads to a greater risk of defective products flowing out. Utility Model Content

[0004] In order to overcome the defects in the prior art, an embodiment of the utility model provides a spring parallelism detection device, which can replace the sampling detection method to detect all spring products and reduce the risk of defective products flowing out.

[0005] The present application embodiment discloses: a spring parallelism detection device, comprising:

[0006] Unloading mechanism, used for automatically unloading springs;

[0007] The detection mechanism is arranged below the discharge end of the feeding mechanism, and the detection mechanism includes a detection part, and the detection part includes a first plate and a second plate arranged opposite to each other, and the first plate and the second plate constitute a channel for the spring to pass through.

[0008] Specifically, the unloading mechanism includes a vibration plate and an unloading guide rail connected to the vibration plate, and the detection mechanism is arranged below one end of the unloading guide rail away from the vibration plate.

[0009] Specifically, a flipping unloading mechanism is provided at one end of the unloading guide rail away from the vibration plate, and the flipping unloading mechanism includes a first driving unit connected to the unloading guide rail, a rotating shaft connected to the output shaft of the first driving unit, and a flap connected to the rotating shaft, and when the flap is in a horizontal position, it can cover the feed port of the channel.

[0010] Specifically, the end of the unloading guide rail facing away from the vibration plate is connected to a limit cylinder and a proximity switch. The proximity switch is located above the flap and is used to detect whether there is a spring above the flap. The limit cylinder is used to limit or release the limit of the spring close to the flap after receiving the signal from the proximity switch.

[0011] Specifically, the detection mechanism further includes a feeding portion, which is connected to one end of the detection portion close to the unloading mechanism, and the feeding portion is larger at the top and smaller at the bottom.

[0012] Specifically, the spring parallelism detection device further includes a second driving unit for driving the detection mechanism to move in a horizontal direction, and the detection portion is connected to an output shaft of the second driving unit.

[0013] Specifically, the detection part also includes a third plate and an elastic connecting member, the first plate is connected to the output shaft of the second driving unit, the third plate is fixedly connected to the first plate, and the second plate is located between the first plate and the third plate and is connected to the third plate through the elastic connecting member.

[0014] Specifically, the second driving unit is a linear cylinder, both ends of the second plate are provided with protrusions, and both sides of the cylinder body of the linear cylinder are provided with ejection parts for abutting against the protrusions.

[0015] The utility model has at least the following beneficial effects:

[0016] 1. The spring parallelism detection device of this embodiment forms a channel through the first plate and the second plate arranged relatively to each other. The channel has a detection width for clamping the spring. When the parallelism of the two ends of the spring is qualified, the spring can flow out to the good product material box through the channel. When the parallelism of the two ends of the spring is unqualified, the spring cannot flow to the good product material box through the channel. Therefore, the bad spring can be screened out. This device can quickly detect the parallelism of the two ends of the spring, so it can replace the existing sampling detection method to detect all products of the spring, greatly reducing the risk of bad products flowing out.

[0017] 2. The detection device of this embodiment can automatically discharge the detected defective products, which is helpful to save manpower.

[0018] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the structure of the spring in the embodiment of the utility model;

[0021] Figure 2 It is a structural schematic diagram of a spring parallelism detection device from one viewing angle in an embodiment of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the spring parallelism detection device from another perspective in an embodiment of the utility model;

[0023] Figure 4 is a cross-sectional view of a spring parallelism detection device in an embodiment of the utility model;

[0024] Figure 5 It is a structural schematic diagram of the detection mechanism in the embodiment of the utility model.

[0025] The figure markings of the above drawings are: 1. unloading guide rail; 21. detection part; 211. first plate; 212. second plate; 2121. raised part; 213. third plate; 214. fourth plate; 22. feeding part; 31. rotating shaft; 32. first driving unit; 33. flap; 4. limiting cylinder; 5. bracket; 6. second driving unit; 61. ejection part; 110. first end; 120. second end. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "fixed", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0028] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above", "below" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0029] In the description of this embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application.

[0030] In addition, the terms "first", "second", etc. are only used to distinguish in description and have no special meaning.

[0031] The spring parallelism detection device of this embodiment can be used for Figure 1 The spring shown is subjected to parallelism detection. Specifically, the spring comprises a first end 110 and a second end 120 opposite to each other, and the device is used to quickly detect the parallelism of the first end 110 and the second end 120.

[0032] Combination Figures 2 to 4As shown, the spring parallelism detection device of this embodiment mainly includes a feeding mechanism and a detection mechanism. Among them, the feeding mechanism is used to automatically feed the spring to be tested into the detection mechanism, and the detection mechanism is arranged below the discharge end of the feeding mechanism. The detection mechanism includes a detection part 21, and the detection part 21 includes a first plate 211 and a second plate 212 arranged opposite to each other. The first plate 211 and the second plate 212 together constitute a channel for the spring to pass through. The channel has a detection width (or, there is a detection distance between the first plate 211 and the second plate 212), and the detection width (detection distance) is equal to the maximum distance between the first end 110 and the second end 120 of the qualified spring. Of course, the device can also include a good material box (not shown in the figure) arranged below the channel of the detection part 21.

[0033] By adopting the above scheme, the spring parallelism detection device of this embodiment forms a channel through the first plate 211 and the second plate 212 arranged relatively to each other, and the channel has a detection width for clamping the spring. When the parallelism of the two ends of the spring is qualified, the spring can flow out to the good product material box through the channel. When the parallelism of the two ends of the spring is unqualified, the spring cannot flow to the good product material box through the channel, so the bad spring can be screened out. This device can quickly detect the parallelism of the two ends of the spring, so it can replace the existing sampling detection method to detect all products of the spring, greatly reducing the risk of bad products flowing out.

[0034] like Figure 2 As shown, the unloading mechanism of this embodiment includes a vibrating plate (not shown) and an unloading guide rail 1 connected to the vibrating plate. Specifically, the feeding end of the unloading guide rail 1 is connected to the vibrating plate, and the end (discharging end) away from the vibrating plate is connected to the detection mechanism below.

[0035] like Figure 3 and Figure 4 As shown, the discharge end of the material discharge guide rail 1 is also provided with a flipping material discharge mechanism, which includes a first driving unit 32, a rotating shaft 31 and a flap 33. Among them, the first driving unit 32 is fixedly connected to the material discharge guide rail 1, the rotating shaft 31 is connected to the output shaft of the first driving unit 32, and the flap 33 is connected to the rotating shaft 31. The first driving unit 32 can drive the rotating shaft 31 to rotate, thereby driving the flap 33 to flip. The flap 33 is located above the detection part 21 of the detection mechanism. When the flap 33 is rotated to a horizontal state, the flap 33 can cover the feed port of the channel of the detection part 21 to prevent the spring from entering the channel of the detection part 21. When the flap 33 is rotated away from the horizontal position, as the tilt angle of the flap 33 becomes larger and larger, the spring can fall into the channel of the detection part 21.

[0036] Furthermore, if Figure 4As shown, the discharge end of the unloading guide rail 1 is also provided with a limit cylinder 4 and a proximity switch (not shown in the figure), and the proximity switch can be installed on the bracket 5 and located above the flap 33. Of course, the detection device of this embodiment also includes an electric control module electrically connected to each cylinder and the proximity switch. The proximity switch is used to detect whether there is a spring above the flap 33 and transmit the signal to the electric control module, and the electric control module controls the output shaft of the limit cylinder 4 to extend and retract according to the received signal. Specifically, when the proximity switch detects that there is a spring on the flap 33, the output shaft of the limit cylinder 4 extends to extend into the spring closest to the flap 33 to limit it, so as to prevent the spring from continuing to run onto the flap 33; when the proximity switch detects that there is no spring on the flap 33 (for example, the previous spring has fallen into the detection mechanism), the output shaft of the limit cylinder 4 retracts to release the limit of the spring closest to the flap 33, so that it runs onto the flap 33. The above scheme can ensure that the spring can fall into the channel of the detection part 21 in an orderly manner, and avoid the stacking of the springs in the channel to affect the detection effect.

[0037] like Figure 5 As shown, the detection mechanism of this embodiment also includes a feeding portion 22, which is connected to one end of the detection portion 21 close to the unloading guide rail 1. The feeding portion 22 is larger at the top and smaller at the bottom, which facilitates the feeding of the spring in the detection mechanism.

[0038] like Figure 2 As shown, the detection device of this embodiment further includes a second driving unit 6 for driving the detection mechanism to move in the horizontal direction, and the detection part 21 of the detection mechanism is connected to the output shaft of the second driving unit 6. With the above solution, when the detection part 21 detects that the spring is a defective product, the second driving unit 6 can drive the detection part 21 to move in the horizontal direction, so that the detection part 21 is misaligned with the good product material box, so as to facilitate the removal of the defective products in the detection part 21.

[0039] like Figure 2 and Figure 5As shown, the detection unit 21 also includes a third plate 213, a fourth plate 214 and an elastic connector (not shown in the figure). Among them, the first plate 211 is connected to the output shaft of the second drive unit 6, the third plate 213 is fixedly connected to the first plate 211, the second plate 212 is located between the first plate 211 and the third plate 213 and is connected to the third plate 213 through an elastic connector, and the fourth plate 214 is arranged between the first plate 211 and the second plate 212 so that the above-mentioned channel is formed between the first plate 211 and the second plate 212. Further, the second drive unit 6 is a linear cylinder, and a protrusion 2121 is respectively provided at both ends of the second plate 212, and an ejection portion 61 is respectively provided on both sides of the cylinder body of the linear cylinder, and the two ejection portions 61 are used to abut against the two protrusions 2121 in a one-to-one correspondence. By adopting the above scheme, when the detection mechanism detects a defective product (the spring cannot pass through the channel of the detection part 21), the linear cylinder drives the detection part 21 to move horizontally, and when the output shaft of the linear cylinder retracts to the point where the protrusion 2121 of the second plate 212 abuts against the ejection part 61 of the cylinder body, the elastic connecting member between the second plate 212 and the third plate 213 is compressed, and the distance between the second plate 212 and the first plate 211 becomes larger, that is, the channel becomes wider, and at this time, the spring can fall downward (into the defective product box), and since the detection mechanism has been misaligned with the good product box, there is no need to worry that the defective product will fall into the good product box; when the linear cylinder drives the detection mechanism to reset (moves toward the bottom of the unloading guide rail 1), the protrusion 2121 separates from the ejection part 61, and at the same time, the elastic connecting member rebounds to push the second plate 212 toward the first plate 211, so that the distance between the second plate 212 and the first plate 211 is restored to the detection distance, that is, the width of the channel is restored to the detection width.

[0040] The present invention uses specific embodiments to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A spring parallelism detection device, characterized in that: include: Unloading mechanism, used for automatically unloading springs; The detection mechanism is arranged below the discharge end of the feeding mechanism, and the detection mechanism includes a detection part, and the detection part includes a first plate and a second plate arranged opposite to each other, and the first plate and the second plate constitute a channel for the spring to pass through.

2. The spring parallelism detection device according to claim 1, characterized in that: The unloading mechanism comprises a vibration plate and an unloading guide rail connected to the vibration plate, and the detection mechanism is arranged below one end of the unloading guide rail away from the vibration plate.

3. The spring parallelism detection device according to claim 2, characterized in that: A flipping unloading mechanism is provided at one end of the unloading guide rail away from the vibration plate, and the flipping unloading mechanism includes a first driving unit connected to the unloading guide rail, a rotating shaft connected to the output shaft of the first driving unit, and a flap connected to the rotating shaft, and when the flap is in a horizontal position, it can cover the feed port of the channel.

4. The spring parallelism detection device according to claim 3, characterized in that: The end of the unloading guide rail facing away from the vibration plate is connected to a limit cylinder and a proximity switch. The proximity switch is located above the flap and is used to detect whether there is a spring above the flap. The limit cylinder is used to limit or release the limit of the spring close to the flap after receiving the signal from the proximity switch.

5. The spring parallelism detection device according to claim 1, characterized in that: The detection mechanism also includes a feeding portion, which is connected to one end of the detection portion close to the unloading mechanism, and the feeding portion is larger at the top and smaller at the bottom.

6. The spring parallelism detection device according to claim 5, characterized in that: The spring parallelism detection device further comprises a second driving unit for driving the detection mechanism to move in a horizontal direction, and the detection part is connected to an output shaft of the second driving unit.

7. The spring parallelism detection device according to claim 6, characterized in that: The detection part also includes a third plate and an elastic connecting member, the first plate is connected to the output shaft of the second driving unit, the third plate is fixedly connected to the first plate, and the second plate is located between the first plate and the third plate and is connected to the third plate through the elastic connecting member.

8. The spring parallelism detection device according to claim 7, characterized in that: The second driving unit is a linear cylinder, and protrusions are respectively provided at both ends of the second plate, and ejection parts for abutting against the protrusions are respectively provided at both sides of the cylinder body of the linear cylinder.

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