Detection device

Abstract

The utility model discloses a detection device which comprises a fixing assembly, a pressing rod assembly and a detection assembly, the fixing assembly is provided with a station used for placing a product to be detected, the pressing rod assembly is located above the station, and the detection assembly is fixed above the pressing rod assembly; the pressing rod assembly can move downwards and make contact with the to-be-detected product, the pressing rod assembly can also move upwards, and when the pressing rod assembly moves upwards to make contact with the detection assembly, the to-be-detected product is a defective product. During detection, if the detection assembly does not send out a signal, it is proved that the to-be-detected product is a good product, and otherwise, if the detection assembly sends out a signal, it is proved that the to-be-detected product is a defective product. According to the detection device provided by the utility model, through cooperation among the fixing assembly, the pressing rod assembly and the detection assembly, semi-finished products with poor inclination of the to-be-detected products can be effectively detected, the detection process is automatic and high in efficiency, and the reject ratio index caused by inclination of the to-be-detected products and the later customer complaint amount are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of capacitor assembly and relates to a detection device. Background Art

[0002] During the assembly of the semi-finished capacitor core, the equipment needs to insert the core into the rubber plug and press the core with a pressure rod to make the core fit the rubber plug. However, since there are leads on the core, the core may be tilted when it is inserted into the rubber plug, which may cause the core to contact the aluminum shell when it is installed into the aluminum shell, causing a short circuit in the product.

[0003] The traditional way to detect whether the core is tilted when it is inserted into the plug is to use an X-ray machine to transmit the product after the core is inserted into the shell. This method is inefficient and time-consuming. Of course, the traditional method can also use an assembly machine to detect the condition of the core entering the plug, but the assembly machine's detection device for the plug can only detect whether there is a plug, but cannot detect the unfavorable condition of the plug tilting. Utility Model Content

[0004] In view of this, the utility model provides a detection device to solve the technical problems that the traditional equipment cannot detect whether the core is tilted when entering the rubber plug and the detection efficiency through the X-ray machine is low.

[0005] In order to solve the above problem, according to one aspect of the present application, an embodiment of the present utility model provides a detection device, the detection device comprises a fixing assembly, a pressure rod assembly and a detection assembly, the fixing assembly has a station for placing a product to be detected, the pressure rod assembly is located above the station, and the detection assembly is fixed above the pressure rod assembly;

[0006] The pressure rod assembly can move downward and contact the product to be inspected, and the pressure rod assembly can also move upward. When it moves upward to contact the inspection assembly, the product to be inspected is a defective product.

[0007] In some embodiments, the pressure rod assembly includes a pressure rod body, a fixing block and an elastic member, the fixing block is sleeved on the pressure rod body, the pressure rod body has a pressure rod head at one end facing the fixing assembly, and the elastic member is sleeved on the pressure rod body and located between the pressure rod head and the fixing block.

[0008] In some embodiments, the pressure rod head is a trumpet-shaped structure, and the end with a larger cross-sectional area faces the fixing assembly.

[0009] In some embodiments, the elastic member is a spring.

[0010] In some embodiments, the fixing assembly includes a fixing body, a fixing plate is disposed at an edge of the fixing body, and the workstation is opened on the fixing plate.

[0011] In some embodiments, a plurality of the fixing plates are provided, and the plurality of the fixing plates are evenly distributed along the edge of the fixing body; and each of the fixing plates is provided with the work station.

[0012] In some embodiments, the fixed body is a turntable, and each rotation of the turntable can cause the next workstation adjacent to the current workstation to be located below the pressure rod assembly.

[0013] In some embodiments, the detection assembly includes a detection copper head and a detection board. When the detection copper head contacts the top of the pressure rod assembly, the detection circuit on the detection board is turned on.

[0014] In some embodiments, when the pressure rod assembly is in an initial state, the distance between the top of the pressure rod assembly and the lower end of the detection assembly is: when the product to be detected is a defective product, the minimum height of the tilt of the product to be detected.

[0015] In some embodiments, a limit platform is provided in the workstation for preventing the product to be inspected from moving downward.

[0016] Compared with the prior art, the detection device of the utility model has at least the following beneficial effects:

[0017] The detection device provided by the utility model comprises a fixing component, a pressure rod component and a detection component, wherein the fixing component has a work station for placing the product to be detected, the pressure rod component is located above the work station, and the detection component is fixed above the pressure rod component; the pressure rod component can move downward and contact the product to be detected, and the pressure rod component can also move upward, and when it moves upward to contact the detection component, the product to be detected is a defective product.

[0018] For better explanation, it is assumed that the above-mentioned product to be detected is a capacitor core. During the detection, if the capacitor core is a good product, the rubber plug is in close contact with the core body and there is no tilt. At this time, after the pressure rod assembly moves downward and contacts the top of the capacitor core, it will move upward. Because the capacitor core is a good product, its height is not enough, so the distance that the pressure rod assembly moves upward is limited, and it will not contact the detection component. At this time, the detection component will not send a signal, which proves that the capacitor core is a good product. If the capacitor core is a defective product, the rubber plug is tilted relative to the core body. At this time, after the pressure rod assembly moves downward and contacts the top of the capacitor core, it will move upward. Because the capacitor core is a defective product, its height is high, so the pressure rod assembly will contact the detection component after moving upward. At this time, the detection component sends a signal, which proves that the capacitor core is a defective product. That is to say, in the process of detecting the capacitor core, if the detection component does not send a signal, it proves that the capacitor core is a good product, otherwise if the detection component sends a signal, it proves that the capacitor core is a defective product.

[0019] The detection device provided by the utility model can effectively detect semi-finished products with poor tilt of the products to be detected through the cooperation between the fixing component, the pressure rod component and the detection component. The detection process is automated and efficient, which reduces the defect rate index of the products to be detected due to the tilt and the number of subsequent customer complaints, and can also improve the production efficiency of the products to be detected.

[0020] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are 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.

[0022] Figure 1 It is a structural schematic diagram of a capacitor core in a detection device provided in an embodiment of the utility model, when the product to be detected is a capacitor core and the capacitor core is a good product;

[0023] Figure 2 It is a structural schematic diagram of a capacitor core in a detection device provided in an embodiment of the utility model, when the product to be detected is a capacitor core and the capacitor core is a defective product;

[0024] Figure 3 It is a structural schematic diagram of a detection device provided by an embodiment of the utility model;

[0025] Figure 4 It is a matching diagram of a pressure rod assembly and a detection assembly in a detection device provided by an embodiment of the utility model when the product to be detected is a good product;

[0026] Figure 5 It is a matching diagram of a pressure rod assembly and a detection assembly in a detection device provided by an embodiment of the utility model when the product to be detected is a defective product;

[0027] Figure 6 It is an exploded view of a detection device provided by an embodiment of the utility model;

[0028] Figure 7 It is a structural schematic diagram of a fixing plate in a detection device provided in an embodiment of the utility model;

[0029] Figure 8 It is a structural schematic diagram of an elastic member in a detection device provided in an embodiment of the utility model.

[0030] in:

[0031] 1. Fixing assembly; 11. Workstation; 12. Fixing body; 13. Fixing plate;

[0032] 2. Pressure rod assembly; 21. Pressure rod body; 22. Fixed block; 23. Elastic member; 24. Pressure rod head;

[0033] 3. Detection components;

[0034] 4. Product to be tested; 41. Core body; 42. Rubber plug; 43. Lead wire. DETAILED DESCRIPTION

[0035] In order to further explain the technical means and effects adopted by the utility model to achieve the predetermined utility model purpose, the specific implementation methods, structures, features and effects of the utility model application are described in detail below in conjunction with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures, or characteristics in one or more embodiments may be combined in any suitable form.

[0036] In the description of the present invention, it should be clarified that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence; the terms "vertical", "lateral", "longitudinal", "front", "rear", "left", "right", "up", "down", "horizontal", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention, and do not mean that the referred device or element must have a specific direction or position, and therefore cannot be understood as a limitation on the present invention.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] This embodiment provides a detection device, such as Figure 1-Figure 8 As shown, the detection device includes a fixing assembly 1, a pressure rod assembly 2 and a detection assembly 3, the fixing assembly 1 has a station 11 for placing a product 4 to be detected, the pressure rod assembly 2 is located above the station 11, and the detection assembly 3 is fixed above the pressure rod assembly 2;

[0039] The pressure rod assembly 2 can move downward and contact the product to be detected 4. The pressure rod assembly 2 can also move upward. When it moves upward to contact the detection assembly 3, the product to be detected 4 is a defective product.

[0040] For better explanation, it is assumed that the product 4 to be tested is a capacitor core. Figure 1 As shown in FIG. 1 , the capacitor core includes a core body 41, a rubber plug 42 and a lead 43. Under normal circumstances, the rubber plug 42 should be arranged close to the core body 41. However, during the assembly of the capacitor core, the rubber plug 42 may be tilted due to the presence of the lead 43. Figure 2 shown.

[0041] More specifically, in this embodiment, the detection assembly 3 , the pressure rod assembly 2 and the workstation 11 are arranged in sequence from top to bottom, wherein the capacitor core is inserted in the workstation 11 .

[0042] In this embodiment, the workstation 11 on the fixing component 1 is used to fix the product to be detected 4; the pressure rod component 2 is used to sense the height of the product to be detected 4 by pressing down. If the product to be detected 4 is tilted, it is higher, and the sensed height is reflected through the detection component 3.

[0043] During the inspection, if the capacitor core is good, the rubber plug 42 is in close contact with the core body 41 without tilting. At this time, after the pressure rod assembly 2 moves downward and contacts the top of the capacitor core, it will move upward. Because the capacitor core is good, its height is not enough, so the pressure rod assembly 2 moves upward. The distance is limited and it will not contact the detection assembly 3. Figure 4 As shown, at this time, the detection component 3 does not send out a signal, which proves that the capacitor core is a good product.

[0044] If the capacitor core is defective, the rubber plug 42 is tilted relative to the core body 41. At this time, after the pressure rod assembly 2 moves downward and contacts the top of the capacitor core, it will move upward. Because the capacitor core is defective and has a high height, the pressure rod assembly 2 will contact the detection assembly 3 after moving upward. Figure 5 As shown, at this time, the detection component 3 sends a signal, proving that the capacitor core is a defective product.

[0045] That is to say, in the process of detecting the capacitor core, if the detection component 3 does not send out a signal, it proves that the capacitor core is a good product. On the contrary, if the detection component 3 sends out a signal, it proves that the capacitor core is a defective product.

[0046] The detection device provided in this embodiment can effectively detect semi-finished products to be detected with poor tilt through the cooperation between the fixing component 1, the pressure rod component 2 and the detection component 3. The detection process is automated and efficient, which reduces the defective rate index of the product to be detected 4 due to the tilt and the number of subsequent customer complaints, and can also improve the production efficiency of the product to be detected 4.

[0047] In a specific embodiment, Figure 3 As shown, the pressure rod assembly 2 includes a pressure rod body 21, a fixing block 22 and an elastic member 23. The fixing block 22 is sleeved on the pressure rod body 21. The pressure rod body 21 has a pressure rod head 24 at one end facing the fixing assembly 1. The elastic member 23 is sleeved on the pressure rod body 21 and is located between the pressure rod head 24 and the fixing block 22.

[0048] Specifically, the general outline of the pressure rod body 21 is a columnar structure with a certain height, and the fixing block 22 is also a columnar structure, but the diameter of the cross section of the fixing block 22 is larger, and it can be sleeved on the pressure rod body 21. A detection component 3 is arranged above one end of the pressure rod body 21, and a pressure rod head 24 is arranged at the other end of the pressure rod body 21. In the specific working process, the fixing block 22 can slide up and down along the pressure rod body 21.

[0049] When the product 4 to be detected is tested, the fixed block 22 slides downward along the pressure rod body 21, and the elastic member 23 is compressed at this time, and the pressure rod assembly 2 moves downward as a whole. When the pressure rod head 24 at the bottom of the pressure rod assembly 2 touches the product 4 to be detected, it will generate a reaction force and then move upward. When the product 4 to be detected is a good product, its height is not enough, so the reaction force generated by the pressure rod assembly 2 due to the downward movement is not enough, resulting in a limited upward movement distance, and it will not contact the detection component 3. At this time, the detection component 3 will not send a signal, which proves that the product 4 to be detected is a good product. When the product 4 to be detected is a defective product, its height is high, so the reaction force generated by the pressure rod assembly 2 due to the downward movement is large, resulting in a sufficient upward movement distance to contact the detection component 3. At this time, the detection component 3 sends a signal, proving that the product 4 to be detected is a defective product.

[0050] Of course, during the upward movement of the pressure rod assembly 2, the fixing block 22 also moves upward, and the elastic member 23 is released and returns to the initial state.

[0051] In a specific embodiment, the pressure rod head 24 is a trumpet-shaped structure, and the end with a larger cross-sectional area faces the fixing assembly 1 .

[0052] More specifically, the pressure rod head 24 and the pressure rod body 21 are integrally formed, the pressure rod head 24 is a trumpet-shaped structure, and its end with a larger cross-sectional area faces the fixed component 1, so that during the detection process, the contact area between the pressure rod head 24 and the product to be detected 4 is larger, which can ensure the accuracy of the detection and avoid the technical problem that the contact area between the pressure rod head 24 and the product to be detected 4 is too small, resulting in the inability to generate reaction force and low detection accuracy.

[0053] Of course, in order to protect the pressure rod head 24 from causing wear to the product to be inspected 4, the pressure rod head 24 can be made of some relatively soft and elastic materials, for example, the pressure rod head 24 is made of rubber.

[0054] In a specific embodiment, Figure 8 As shown, the elastic member 23 is a spring.

[0055] A spring is a mechanical part that uses elasticity to work. A part made of elastic material deforms under external force and returns to its original shape after the external force is removed. In this embodiment, the spring is sleeved on the pressure rod body 21 and is located between the pressure rod head 24 and the fixing block 22.

[0056] When the fixing block 22 moves downward, the spring is compressed and deformed. When the fixing block 22 stops applying pressure to the spring, the spring returns to its original shape to prepare for the next detection.

[0057] In addition, the power for the fixed block 22 to move downward is provided by a first driving unit, for example, the first driving unit may include a cylinder, the output end of the cylinder is connected to a connecting plate, the connecting plate is connected to the fixed block 22, the cylinder can move up and down, and the connecting plate drives the fixed block 22 to move along the pressure rod body 21. Of course, the first driving unit may also be other structures.

[0058] In a specific embodiment, the fixing assembly 1 includes a fixing body 12 , a fixing plate 13 is disposed at an edge of the fixing body 12 , and the workstation 11 is opened on the fixing plate 13 .

[0059] Specifically, because the capacitor core has a long lead 43, in order to avoid damage to the lead 43 during the detection process, sufficient space must be provided for the lead 43. In this embodiment, the fixing plate 13 is arranged at the edge of the fixing body 12 and extends out of the fixing body 12, and the station 11 is opened on the portion extending out of the fixing body 12. In other words, the fixing plate 13 includes a first part and a second part. Of course, the first part and the second part are integrally formed. Here, it is only for better explanation that it is divided into the first part and the second part, wherein the first part is fixed at the edge of the fixing body 12, the second part extends out of the fixing body 12, and the station 11 is a through hole arranged on the second part.

[0060] In the specific detection process, the lead wire 43 of the capacitor core passes through the fixing hole, and the rubber plug 42 of the capacitor core, or part of the rubber plug 42, or part of the rubber plug 42 and the core body 41 are located in the fixing hole to fix the capacitor core. The lead wire 43 is located below the station 11, and there is a large space below the station 11, and no parts are set, so as to avoid damage to the lead wire 43.

[0061] In a specific embodiment, a plurality of the fixing plates 13 are provided, and the plurality of the fixing plates 13 are evenly distributed along the edge of the fixing body 12 ; and each of the fixing plates 13 is provided with the work station 11 .

[0062] Specifically, in the present embodiment, a plurality of fixed plates 13 are provided, which are evenly distributed along the edge of the fixed body 12, and a work station 11 is provided on each fixed plate 13. In this way, in the initial loading stage (placing the product 4 to be inspected on the work station 11), multiple products 4 to be inspected can be placed at the same time, thereby improving the efficiency of the inspection.

[0063] In addition, the material discharge can be achieved by a robot or by other means, which are not specifically limited here.

[0064] In a specific embodiment, the fixed body 12 is a turntable, and each time the turntable rotates, the next workstation 11 adjacent to the current workstation 11 can be located below the pressure rod assembly 2 .

[0065] Specifically, the fixed body 12 is a turntable, and its general outline is circular. A circle of fixed plates 13 is arranged at the edge of the circle, and each fixed plate 13 has a work station 11, such as Figure 3 and Figure 6 As shown, eight fixing plates 13 are arranged on the edge of the turntable, corresponding to the eight workstations 11 .

[0066] In order to realize the rotation of the turntable in this embodiment, a second driving unit is arranged below the turntable. The second driving unit includes a cam and a gear. The cam and the gear can realize the intermittent rotation of the turntable after cooperation.

[0067] Assume that eight fixed plates 13 are set at the edge of the turntable. Along the clockwise direction, the workstations 11 on the eight fixed plates 13 are respectively the first workstation, the second workstation, the third workstation, the fourth workstation, the fifth workstation, the sixth workstation, the seventh workstation and the eighth workstation; in the initial state, the first workstation is located directly below the pressure rod assembly 2. Under the action of the second driving unit, the turntable rotates, and the second workstation is located directly below the pressure rod assembly 2. The turntable rotates again, and the third workstation is located directly below the pressure rod assembly 2. This method is repeated until the eighth workstation is located directly below the pressure rod assembly 2. After that, the turntable continues to rotate, and the first workstation is located directly below the pressure rod assembly 2.

[0068] In a specific embodiment, the detection assembly 3 includes a detection copper head and a detection board. When the detection copper head contacts the top of the pressure rod assembly 2, the detection circuit on the detection board is turned on.

[0069] Specifically, there is a detection circuit on the detection board, which includes a 24V power supply. Using the principle of 24V conduction, a 24V circuit is connected to the detection copper head, and a 0V circuit is connected to the pressure rod assembly 2. When the detection copper head contacts the top of the pressure rod assembly 2, the circuit is turned on, causing the relay signal to be energized, thereby determining it as a defective product and putting it into a defective product box.

[0070] In a specific embodiment, when the pressure rod assembly 2 is in an initial state, the distance between the top of the pressure rod assembly 2 and the lower end of the detection assembly 3 is: when the product to be detected 4 is a defective product, the minimum height of the tilt of the product to be detected 4.

[0071] The spring is installed between the pressure rod head 24 and the fixed block 22. When the pressure rod head 24 is pressed down to contact the product to be inspected 4, the pressure rod body 21 will move upward, and the distance between the top of the detection component 3 and the pressure rod component 2 is the minimum distance for the defective product to be tilted. Therefore, whether the pressure rod component 2 contacts the detection component 3 can be used to determine whether the product to be inspected 4 is a defective product.

[0072] In a specific embodiment, a limit platform is provided in the workstation 11 for preventing the product to be inspected 4 from moving downward.

[0073] In the specific detection process, in order to prevent the product 4 to be detected from moving downward in the work station 11, a limit platform is set in the work station 11. The through-hole structure of the work station 11, and the limit platform is a circle of protrusions opened in the through-hole structure. The limit platform does not affect the lead 43 passing through the through-hole, but it can prevent the plug 42 from moving downward along the through-hole.

[0074] The detection device provided in this embodiment can detect whether the rubber plug 42 of the capacitor core is tilted, and a detection copper head is added above the pressure rod assembly 2. When the capacitor core is a good product, the top of the pressure rod assembly 2 does not touch the detection copper head. When it is a defective product, because the pressure rod body 21 corresponding to the defective product and the good product has a different distance when moving, the defective product will be farther than the good product. Therefore, by comparing the moving distances of the pressure rod body 21 corresponding to the good product and the defective product, the position of the detection copper head is adjusted in advance so that the top of the pressure rod body 21 corresponding to the defective product can just touch the detection copper head, and when the top of the pressure rod body 21 touches the detection copper head, the detection copper head and the pressure rod body 21 are connected, and a signal is sent to the relay to enable its equipment to put the defective product with the tilted capacitor core into the defective product box. If there is no contact with the detection copper head, it means that the product is a good product.

[0075] In addition, this embodiment also provides a capacitor core manufacturing line, which includes the above-mentioned detection device.

[0076] In summary, it is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous technical features can be freely combined and superimposed.

[0077] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A detection device, characterized in that: The detection device comprises a fixing assembly, a pressure rod assembly and a detection assembly, wherein the fixing assembly has a station for placing the product to be detected, the pressure rod assembly is located above the station, and the detection assembly is fixed above the pressure rod assembly; The pressure rod assembly can move downward and contact the product to be inspected, and the pressure rod assembly can also move upward. When it moves upward to contact the inspection assembly, the product to be inspected is a defective product.

2. The detection device according to claim 1, characterized in that: The pressure rod assembly includes a pressure rod body, a fixing block and an elastic member. The fixing block is sleeved on the pressure rod body. The pressure rod body has a pressure rod head at one end facing the fixing assembly. The elastic member is sleeved on the pressure rod body and is located between the pressure rod head and the fixing block.

3. The detection device according to claim 2, characterized in that: The pressure rod head is a trumpet-shaped structure, and the end with a larger cross-sectional area faces the fixing assembly.

4. The detection device according to claim 2, characterized in that: The elastic member is a spring.

5. The detection device according to claim 1, characterized in that: The fixing assembly comprises a fixing body, a fixing plate is arranged at the edge of the fixing body, and the workstation is opened on the fixing plate.

6. The detection device according to claim 5, characterized in that: A plurality of the fixing plates are provided, and the plurality of the fixing plates are evenly distributed along the edge of the fixing body; and each of the fixing plates is provided with the working station.

7. The detection device according to claim 6, characterized in that: The fixed body is a turntable, and each time the turntable rotates once, the next workstation adjacent to the current workstation can be located below the pressure rod assembly.

8. The detection device according to claim 1, characterized in that: The detection assembly comprises a detection copper head and a detection board. When the detection copper head contacts the top of the pressure rod assembly, the detection circuit on the detection board is turned on.

9. The detection device according to claim 1 or 8, characterized in that: When the pressure rod assembly is in an initial state, the distance between the top of the pressure rod assembly and the lower end of the detection assembly is: when the product to be detected is a defective product, the minimum height of the tilt of the product to be detected.

10. The detection device according to claim 1, characterized in that: A limit platform is provided in the workstation for preventing the product to be inspected from moving downward.

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