A device for testing the spring force value in a tool

Abstract

This invention provides a device for testing the spring force within a tooling fixture. It is fitted onto an extrusion fixture, on which a push rod is slidably mounted. The push rod pushes against magnets, causing them to adhere to each other. An elastic element is connected to the push rod, which uses its elastic force to drive the push rod, keeping it in a state of pushing against the magnets. The device includes a push head, a mounting base, and a pressure sensor. The push head is mounted on the mounting base, which allows relative displacement between itself and the extrusion fixture. After this relative displacement, the push head pushes against the push rod, causing the elastic element to elastically deform. The pressure sensor is positioned between the push head and the mounting base to measure the elastic force exerted by the elastic element on the push head through the push rod. The device allows for measuring the elastic force of the elastic element within the extrusion fixture without removing it from the fixture, enabling convenient and on-the-spot testing.

Description

Technical Field

[0001] This utility model relates to the field of spring testing technology, and in particular to a device for testing the force value of springs within a tooling fixture. Background Technology

[0002] In the actual production process of Heilbeck magnetic components, repulsive forces are generated during assembly due to the different polarities of the magnets. Therefore, specific extrusion fixtures are needed to assist in assembly. Specifically, the extrusion fixture is equipped with push rods to push the magnets, such as... Figure 1 As shown, the thickness of the adhesive layer of the component is ensured by the length of the push rod inserted into the fixture, thereby meeting the requirements of shear force. The fixture has a reference surface, and the push rod has a push rod reference surface. In order to ensure the assembly accuracy of the Heilbeck magnetic component, a spring buffer needs to be added to the rear end of the push rod to ensure that when force is applied to the rear end, the reference surface of the push rod and the reference surface of the fixture can fit together, thereby ensuring the insertion length of the push rod.

[0003] Because the Heilbeck magnetic components generate a repulsive force, the spring force must be greater than the repulsive force of the magnetic components in order to ensure that the push rod can overcome the repulsive force of the magnetic components. However, the problem is that the spring may fail under long-term stress, which will affect the control of the adhesive layer thickness. Therefore, it is necessary to check the spring in the extrusion tooling regularly to ensure that it is within the qualified range.

[0004] However, since the spring is inside the extrusion fixture, the existing technology generally involves disassembling the spring to measure the spring force, which is time-consuming and inefficient, and not convenient for real-time measurement, thus leading to this case. Utility Model Content

[0005] The purpose of this utility model is to provide a device for testing the spring force value inside the tooling. The technical problem to be solved is to provide a device that can measure the elastic force of the elastic component inside the extrusion tooling without disassembling the extrusion tooling.

[0006] To achieve the above objectives, the solution of this utility model is as follows: a device for testing the spring force value inside the tooling, which is fitted on the extrusion tooling. A push rod is slidably arranged on the extrusion tooling. The push rod is used to push against the magnet, so that the magnets stick together. An elastic element is connected to the push rod. The elastic element is used to elastically drive the push rod so that the push rod is in the state of pushing against the magnet. The device includes a push head, a mounting base and a pressure sensor.

[0007] The pusher is mounted on the mounting base, and the mounting base and the extrusion tool can be displaced relative to each other. After the relative displacement, the pusher can push against the push rod, causing the elastic element to undergo elastic deformation.

[0008] A pressure sensor is positioned between the pusher head and the mounting base to measure the elastic force exerted on the pusher head by the elastic element through the push rod.

[0009] Furthermore, a pressure sensor is used to measure the elastic force of the elastic element when the pusher pushes against the push rod and slides to a predetermined position.

[0010] Furthermore, there are multiple push rods, which are arranged parallel to each other along the first horizontal direction and are used to push against different magnets. The extrusion fixture can slide along the first horizontal direction so that when the extrusion fixture slides to different positions, the different push rods on the extrusion fixture are facing the push head.

[0011] Furthermore, it also includes a first linear module, on which a first drive motor is provided. The first drive motor is connected to the extrusion fixture and is used to drive the extrusion fixture to slide along a first horizontal direction.

[0012] Furthermore, the mounting base slides relative to the extrusion fixture, moving closer to or further away from the extrusion fixture, so that when it moves closer, the mounting base drives the push head to push against the push rod. The sliding direction of the push rod is a second horizontal direction, which is perpendicular to the first horizontal direction. The sliding direction of the mounting base is consistent with the sliding direction of the push rod.

[0013] Furthermore, it also includes a second linear module, on which a second drive motor is provided. The second drive motor is connected to the mounting base and is used to drive the mounting base to slide relative to the extrusion tooling in a second horizontal direction.

[0014] Furthermore, it also includes a carrier box with a placement groove formed on the top side of the carrier box for the extrusion tooling to be inserted downwards, and the carrier box and the mounting base can be displaced relative to each other.

[0015] Furthermore, a mounting plate is provided on the mounting base, which extends longitudinally. The pressure sensor is installed on the side of the mounting base facing the extrusion fixture, with one end connected to the mounting base and the other end connected to the pusher, so that the pusher faces the extrusion fixture.

[0016] Furthermore, the elastic element is a compression spring, which is located at the end of the push rod away from the push head. After the push head pushes against the push rod, the elastic element is compressed.

[0017] Furthermore, it also includes a controller, which controls the relative displacement between the mounting base and the extrusion tooling, allowing the push rod to slide to a predetermined position.

[0018] The beneficial effects of this utility model after adopting the above solution are as follows: the mounting base and the extrusion fixture can be relatively displaced, the pusher is mounted on the mounting base, and the pusher can move relatively with the mounting base and the extrusion fixture. After the relative displacement, the pusher can push against the top rod, causing the elastic element to undergo elastic deformation. The pressure sensor is set between the pusher and the mounting base, so that the force on the pusher can be transmitted to the pressure sensor. When the pusher pushes against the top rod and slides, causing the elastic element to undergo elastic deformation, the pressure sensor can measure the elastic force of the elastic element acting on the pusher through the top rod. It is not necessary to remove the elastic element from the extrusion fixture, and it can be detected in real time, making it convenient to use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the top rod and the fixture of this utility model.

[0020] Figure 2 This is a schematic diagram of the structure of the extrusion tooling and fixture of this utility model.

[0021] Figure 3 This is a cross-sectional structural diagram of the extrusion tooling embedded in the carrier box of this utility model.

[0022] Figure 4 This is a three-dimensional structural diagram of the present invention.

[0023] Figure 5 This is a top view of the present invention.

[0024] Figure 6 This is a three-dimensional structural diagram of the present invention without the embedded extrusion tooling.

[0025] Label Explanation:

[0026] 100-Extrusion fixture, 200-Jig, 300-Magnet, 101-Push rod, 102-Elastic element, 1-Push head, 2-Mounting base, 3-Pressure sensor, 4-First linear module, 5-Carrier box, 6-Second linear module, 7-Worktable, 8-Display screen, 201-Magnet slot, 202-Reference surface, 1011-Abutting surface, 41-First drive motor, 42-First slide rail, 51-Placement slot, 61-Second drive motor, 62-Second slide rail. Detailed Implementation

[0027] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Unless otherwise expressly defined, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" in the claims, description, and accompanying drawings of this utility model is merely for the convenience of describing the utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as limiting the specific protection scope of this utility model.

[0029] like Figures 1 to 6 As shown, this utility model provides a device for testing the spring force value inside a tooling fixture. It is used in conjunction with a pressing tooling 100. A push rod 101 is slidably disposed on the pressing tooling 100. The push rod 101 is used to push against a magnet 300, so that the magnets 300 adhere to each other. An elastic element 102 is connected to the push rod 101. The elastic element 102 is used to elastically drive the push rod 101, so that the push rod 101 is in a state of pushing against the magnet 300. When the push rod 101 slides, the elastic element 102 undergoes elastic deformation. The elastic element 102 can be a sheet, a spring, etc., without specific limitations, as long as it can elastically support the push rod 101.

[0030] The testing equipment includes a pusher 1, a mounting base 2, and a pressure sensor 3. The pusher 1 is mounted on the mounting base 2, and the mounting base 2 and the extrusion fixture 100 can be displaced relative to each other. After the relative displacement, the pusher 1 can push against the push rod 101, causing the push rod 101 to drive the elastic element 102 to undergo elastic deformation. Specifically, the displacement can be relative to the extrusion fixture 100, relative to the extrusion fixture 100, or relative to the mounting base 2, or mutual displacement between the mounting base 2 and the extrusion fixture 100; there are no specific limitations. After the relative displacement, the pusher 1 can push against the push rod 101, causing the push rod 101 to drive the elastic element 102 to undergo elastic deformation. The mounting base 2 and the extrusion fixture 100 are brought close together, causing the pusher head 1 to push against the push rod 101. The pressure sensor 3 is set between the pusher head 1 and the mounting base 2 to measure the elastic force of the elastic element 102 acting on the pusher head 1 through the push rod 101 when the pusher head 1 pushes against the push rod 101. Specifically, when the pusher head 1 slides against the push rod 101, causing the elastic element 102 to elastically deform, the elastic force of the elastic element 102 acting on the push rod 101 can be transmitted to the pressure sensor 3 in sequence through the push rod 101 and the pusher head, and measured by the pressure sensor 3.

[0031] In this specific embodiment, the elastic element 102 is a compression spring. The elastic element 102 is disposed at the end of the push rod 101 away from the push head 1. After the push head 1 pushes against the push rod 101 and slides, the elastic element 102 is compressed. The pressure sensor 3 is used to measure the elastic force of the elastic element 102 when the push head 1 pushes against the push rod 101 and slides to a predetermined position. Specifically, the extrusion fixture 100 is used in conjunction with the jig 200. The jig 200 is provided with a magnet groove 201. Several magnets 300 are placed sequentially in the magnet groove 201 along its extension direction. The extension direction of the push rod 101 is consistent with the extension direction of the magnet groove 201. Figure 1 As shown, the outer side of the fixture 200 facing the extrusion tool 100 is the reference surface 202. The push rod 101 forms an abutment surface 1011 facing the fixture 200. When the extrusion tool 100 and the fixture 200 are engaged, the abutment surface 1011 abuts against the reference surface 202. The push rod 101 is inserted into the magnet slot 201. The compression spring is used to drive the push rod 101 with elastic force, so that the abutment surface 1011 of the push rod 101 abuts against the reference surface 202 of the fixture 200. This maintains the push rod 101 pushing against the magnet 300, so that the magnets 300 stick together. The testing principle of the pressure sensor 3 is: through the push head 1 pushing... When the push rod 101 slides to a predetermined position by a predetermined stroke, the pressure sensor 3 measures the spring force of the compression spring. For example, when the predetermined stroke is 5mm, the standard value of the spring force is 15N. If the actual measured spring force is greater than 15N, it indicates that the compression spring is effective. If the actual measured spring force is less than 15N, it indicates that the compression spring is ineffective and needs to be replaced. Of course, in other embodiments, the movement distance of the push rod 101 can also be tested by applying a predetermined pressure through the push head 1, thereby determining whether the elastic element 102 is ineffective. Those skilled in the art can design according to specific circumstances.

[0032] Key points combined Figure 1-3As shown, there are multiple push rods 101, which are arranged parallel to each other along a first horizontal direction and are used to push against different magnets. The extrusion fixture 100 can slide along the first horizontal direction so that when the extrusion fixture 100 slides to different positions, different push rods 101 on the extrusion fixture 100 are opposite to the push head 1, so that the push head 1 can push against different push rods 101. Furthermore, the mounting base 2 slides relative to the extrusion fixture 100, moving closer to or away from the extrusion fixture 100, so that when it moves closer, the mounting base... 2. The push head 1 pushes against the top rod 101, so that the push head 1 can push against different top rods 101 to measure the elastic force of each elastic element 102. The first horizontal direction is defined as the Y direction and the second horizontal direction is defined as the X direction. Preferably, the sliding direction of the top rod 101 is the second horizontal direction, which is perpendicular to the first horizontal direction. The sliding direction of the mounting base 2 is consistent with the sliding direction of the top rod 101, so that the thrust generated by the push head 1 when pushing down the top rod 101 and the elastic force generated by the elastic element 102 are in the same straight line.

[0033] Key points combined Figure 4-5 As shown, the system includes a worktable 7, a first linear module 4, and a second linear module 6 mounted on the worktable 7. The first linear module 4 is equipped with a first drive motor 41, which is connected to an extrusion fixture 100 and drives the extrusion fixture 100 to slide along a first horizontal direction. Specifically, the first linear module 4 also includes a first slide rail 42 extending along the first horizontal direction. The first drive motor 41 is located at one end of the first slide rail 42 and is electrically connected to an external power source to drive the extrusion fixture 100 to slide along the extension direction of the first slide rail 42. The second linear module 6 is equipped with a second drive motor 61, which is connected to a mounting base 2 and drives the mounting base 2 to slide relative to the extrusion fixture 100. Specifically, the second linear module 6 also includes a second slide rail 62, with the second drive motor 61 located at one end of the second slide rail 62. The second drive motor 61 is electrically connected to both an external power source and the mounting base 2 to drive the mounting base 2 to slide.

[0034] It also includes a display screen 8, which is electrically connected to the pressure sensor 3 and is used to display the measured elastic force of the elastic element 102.

[0035] To facilitate the inspection of multiple extrusion fixtures 100, a support box 5 is also included with a placement groove 51 formed on the top side. The placement groove 51 is used for the extrusion fixture 100 to be embedded. The support box 5 is slidably fitted on the first slide rail 42. The first drive motor 41 is electrically connected to the support box 5 to drive the support box 5 to move the extrusion fixture 100 along the first horizontal direction. Measurement can be performed simply by embedding the extrusion fixture 100 into the support box 5, which facilitates the sequential inspection of multiple extrusion fixtures 100.

[0036] Key points combined Figure 6As shown, a mounting plate 21 is provided on the mounting base 2. The mounting plate 21 extends longitudinally. The pressure sensor 3 is installed on the side of the mounting plate 21 facing the extrusion fixture 100. The side of the pressure sensor 3 away from the mounting plate 21 is connected to the push head 1, so that the push head 1 faces the extrusion fixture 100. When the push head 1 drives the push rod 1 to slide, the push head 1 can simultaneously transmit the elastic force of the elastic element 102 acting on it through the push rod 101 to the pressure sensor 3.

[0037] In a specific embodiment, a controller (not shown in the figure) is also included. The controller is used to control the relative displacement between the mounting base 2 and the extrusion tool 100, so that the push rod 101 can slide to a predetermined position. The controller can be an existing PLC controller for controlling the movement of linear modules, without specific limitations.

[0038] The above description is only a preferred embodiment of this utility model and is not intended to limit the design of this case. All equivalent changes made based on the key design of this case shall fall within the protection scope of this case.

Claims

1. A device for testing the spring force value inside a tooling, fitted onto a pressing tooling (100), wherein a push rod (101) is slidably disposed on the pressing tooling (100), the push rod (101) is used to push against a magnet (300), causing the magnets (300) to adhere to each other, and an elastic element (102) is connected to the push rod (101), the elastic element (102) is used to elastically drive the push rod (101), so that the push rod (101) is in a state of holding the push against the magnet (300), characterized in that: Includes push head (1), mounting base (2) and pressure sensor (3); The pusher (1) is mounted on the mounting base (2). The mounting base (2) and the extrusion tool (100) can be displaced relative to each other. After the relative displacement, the pusher (1) can push against the push rod (101) to cause the elastic element (102) to undergo elastic deformation. The pressure sensor (3) is set between the push head (1) and the mounting base (2) to measure the elastic force of the elastic element (102) acting on the push head (1) through the push rod (101).

2. The device for testing the spring force value within the tooling as described in claim 1, characterized in that: The pressure sensor (3) is used to measure the elastic force of the elastic element (102) when the pusher (1) pushes against the push rod (101) and slides to a predetermined position.

3. The device for testing the spring force value within the tooling as described in claim 1, characterized in that: The number of push rods (101) is multiple, and the multiple push rods (101) are arranged parallel to each other along the first horizontal direction, respectively used to push against different magnets (300). The extrusion fixture (100) can slide along the first horizontal direction so that when the extrusion fixture (100) slides to different positions, the different push rods (101) on the extrusion fixture (100) are directly opposite the push head (1).

4. The device for testing the spring force value within the tooling as described in claim 3, characterized in that: It also includes a first linear module (4), on which a first drive motor (41) is provided. The first drive motor (41) is connected to the extrusion fixture (100) and is used to drive the extrusion fixture (100) to slide along the first horizontal direction.

5. The device for testing the spring force value within the tooling as described in claim 3, characterized in that: The mounting base (2) slides relative to the extrusion fixture (100), moving closer to or away from the extrusion fixture (100), so that when it moves closer, the mounting base (2) drives the push head (1) to push against the top rod (101). The sliding direction of the top rod (101) is the second horizontal direction, which is perpendicular to the first horizontal direction. The sliding direction of the mounting base (2) is consistent with the sliding direction of the top rod (101).

6. The device for testing the spring force value within the tooling as described in claim 5, characterized in that: It also includes a second linear module (6), on which a second drive motor (61) is provided. The second drive motor (61) is connected to the mounting base (2) and is used to drive the mounting base (2) to slide relative to the extrusion fixture (100) in the second horizontal direction.

7. The device for testing the spring force value within the tooling as described in claim 1, characterized in that: It also includes a carrier box (5), with a placement groove (51) formed on the top side of the carrier box (5). The placement groove (51) is used for the extrusion tool (100) to be inserted downwards, and the carrier box (5) and the mounting base (2) can be displaced relative to each other.

8. The device for testing the spring force value within the tooling as described in claim 1, characterized in that: The mounting base (2) is provided with a mounting plate (21) which extends longitudinally. The pressure sensor (3) is installed on the side of the mounting base (2) facing the extrusion fixture (100). One end of the sensor is connected to the mounting base (2) and the other end is connected to the pusher (1), so that the pusher (1) faces the extrusion fixture (100).

9. The device for testing the spring force value within the tooling as described in claim 1, characterized in that: The elastic element (102) is a compression spring. The elastic element (102) is located at the end of the push rod (101) away from the push head (1). After the push head (1) pushes against the push rod (101), the elastic element (102) is compressed.

10. The device for testing the spring force value within the tooling as described in claim 2, characterized in that: It also includes a controller for controlling the relative displacement between the mounting base (2) and the extrusion tool (100) so that the push rod (101) can slide to a predetermined position.

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