Spring and cantilever plate mounting tool

Abstract

The application discloses a spring and a spring mounting tool, comprising a limiting assembly and a calibration assembly, the limiting assembly and the calibration assembly are respectively located on both sides of the spring axis, the limiting assembly limits the axis position of the spring, the calibration assembly comprises a power part and a transmission head, the power part drives the transmission head to rotate, the transmission head is in abutment with one end of the spring in the axial direction, and drives the spring to rotate along the axis under the driving of the power part. The application limits the spring through the limiting assembly and the calibration assembly, and drives the transmission head to rotate through the power part to drive the spring to rotate, the rotation process of the transmission head can calibrate the spring to control the assembly angle and position of the spring, solves the poor contact problem caused by the assembly angle deviation of the spring in the prior art, and improves the assembly consistency and reliability.

Description

Technical Field

[0001] This application relates to the field of spring installation technology, and in particular to an installation fixture for a spring and a rocker. Background Technology

[0002] In switch products consisting of springs and rockers, the assembly process of springs and rockers is mostly done manually or semi-automatically. It only requires inserting the spring into the mounting position on the rocker and flowing into the next process. However, because the ring structure of the spring can rotate at a certain angle based on the rocker at the mounting position, the assembly state of the spring on the rocker may vary. There is a risk that the end of the spring may come into contact with the rocker surface, which may cause the switch product to fail to conduct electricity during use, thus affecting the smooth use of the product. Utility Model Content

[0003] In view of this, the purpose of this application is to provide an installation fixture for springs and rocker plates, so as to reduce the risk of poor contact during the installation of springs and rocker plates and improve the consistency of spring assembly.

[0004] To achieve the above objectives, this application provides the following technical solution:

[0005] A spring and rocker mounting fixture includes a limiting component and a calibration component. The limiting component and the calibration component are located on opposite sides of the spring along its axial direction. The limiting component limits the axial position of the spring. The calibration component includes a power unit and a transmission head. The power unit drives the transmission head to rotate. The transmission head abuts against one end of the spring along its axial direction and, driven by the power unit, causes the spring to rotate along its axis.

[0006] Preferably, in the above-mentioned installation fixture for the spring and rocker, the transmission head is provided with a locking groove that can engage the end of the spring and abut against and drive the spring to rotate.

[0007] Preferably, in the above-mentioned mounting fixture for the spring and rocker, the transmission head further includes a protrusion that can extend axially into the annular region of the spring, and the snap-fit ​​groove is disposed on the outer periphery of the protrusion.

[0008] Preferably, in the above-mentioned spring and rocker mounting fixture, the transmission head includes at least a calibration position and an installation position. The transmission head abuts against the end of the spring at the calibration position and simulates the contact state between the end of the spring and the rocker. The transmission head rotates from the calibration position by a preset angle to the installation position, and the transmission head remains in contact with the end of the spring during the process of rotating from the calibration position to the installation position.

[0009] Preferably, in the above-mentioned installation fixture for the spring and rocker, the preset angle is 45°-135°.

[0010] Preferably, in the above-mentioned installation fixture for the spring and rocker, after the transmission head contacts one side of the spring along the axial direction, it rotates one revolution in the direction toward the installation position to achieve abutment and engagement with the spring.

[0011] Preferably, in the above-mentioned installation fixture for the spring and rocker, the transmission head maintains the calibration position in contact with the spring, and the limiting component or manual operation drives the spring to rotate until the end is in contact with the transmission head.

[0012] Preferably, in the above-mentioned installation fixture for the spring and rocker, the limiting component includes a limiting block with a stepped configuration along the axial direction, at least one step of the limiting block extending into the annular region of the spring, and the outer diameter of the limiting block is larger than the outer diameter of the spring.

[0013] Preferably, in the above-mentioned installation fixture for the spring and rocker, the limiting component extends into the stepped structure within the annular region of the spring and abuts against the inner wall of the spring.

[0014] Preferably, in the above-described mounting fixture for the spring and rocker, at least one of the limiting component and the calibration component is capable of axial telescopic movement.

[0015] As can be seen from the above technical solution, the spring and rocker mounting fixture provided in this disclosure includes a limiting component and a calibration component, which can limit the spring from both sides of the spring axis, specifically limiting the axial position of the spring to prevent radial movement, so that the spring remains in a stable position on the fixture; at the same time, the calibration component is provided with a power unit and a transmission head. The transmission head abuts against the end position of the spring axis on one side, while the power unit drives the transmission head to rotate, so as to drive the spring to perform circumferential rotation along its axis. Before the spring is assembled on the rocker, the power unit drives the transmission head to rotate to abut and calibrate the end of the spring, and further drives the spring to rotate, so as to automatically and accurately control the assembly angle between the spring and the reference position, and assemble the spring and rocker based on the assembly angle, so that the end of the spring axis on one side maintains sufficient distance and angle with the side of the rocker, thereby reducing the contact problems caused by spring assembly angle deviation in the prior art, and improving the consistency of spring installation angle in batch products, thus stabilizing the assembly quality of the products. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the mounting fixture for the spring and rocker and the fit structure of the spring according to an embodiment of the present disclosure;

[0018] Figure 2 This is a schematic diagram of the mating structure between the transmission head and one end of the spring;

[0019] Figure 3 This is a schematic diagram of the assembly structure of the adjusted spring on the rocker.

[0020] Figure 4 This is a schematic diagram of the installation fixture for the spring and rocker before they are combined with the spring.

[0021] in:

[0022] 10-Limiting component; 110-Limiting block; 20-Calibration component; 210-Power unit; 220-Transmission head; 2210-Snap-fit ​​groove; 2220-Protrusion; 30-Spring; 40-Rocker. Detailed Implementation

[0023] The core of this application is to disclose an installation fixture for springs and rocker plates, so as to reduce the risk of poor contact during the installation of springs and rocker plates and improve the consistency of spring assembly.

[0024] To enable those skilled in the art to better understand the present application, embodiments of the present application will be described below with reference to the accompanying drawings. Furthermore, the embodiments shown below do not limit the scope of the utility model described in the claims. Additionally, the complete content of the structures represented in the following embodiments is not limited to those necessary for the solution of the utility model described in the claims.

[0025] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this embodiment of the present disclosure provides an installation fixture for a spring and a rocker. Specifically, the installation fixture for the spring and the rocker mainly includes a limiting component 10 and a calibration component 20. The limiting component 10 and the calibration component 20 can limit and lock the spring 30 from both sides of the spring 30 axially upward, so that the spring 30 can maintain a stable position on the fixture provided in this embodiment of the present disclosure and reduce the assembly angle deviation caused by its radial movement.

[0026] Specifically, in some embodiments of this disclosure, the limiting component 10 limits the spring 30 by snapping or clamping to limit one side of the spring 30, thereby reducing the risk of radial movement of the spring 30; while the calibration component 20 includes a power unit 210 and a transmission head 220. The power unit 210 can drive the transmission head 220 to rotate, and the transmission head 220 can abut against one end of the spring 30 in the axial direction. Specifically, the transmission head 220 can abut against one free end of the annular continuous structure of the spring 30, and the abutment method can be planar contact or groove contact, so that the transmission head 220 can drive the spring 30 to rotate along its axis under the drive of the power unit 210.

[0027] Based on this, the spring and rocker installation fixture provided in this embodiment can ensure accurate axial positioning of the spring 30 through the limiting component 10, and through the calibration component 20, control the rotation angle of the spring 30 so that the distance and angle between the end of the spring 30 and the rocker 40 meet the predetermined requirements. Compared with the manual or automated direct assembly process, this fixture can standardize the assembly angle of the spring 30, avoid electrical failures caused by poor contact, and improve the consistency of the spring 30 installation angle during the assembly of batch products, thereby improving the uniformity of the finished product quality.

[0028] Furthermore, in the spring and rocker mounting fixture provided in the embodiments of this disclosure, the stable contact and transmission between the transmission head 220 and one end of the spring 30 are the basis for adjusting the angle of the spring 30. In some embodiments of this disclosure, the transmission head 220 is provided with a locking groove 2210 that can engage the end of the spring 30 and abut against and drive the spring 30 to rotate. The specific structure of the locking groove 2210 can be an embedded structure such as a V-groove or a U-groove, so that the end of the spring 30 can be embedded and its size matches the end of the spring 30 to ensure stable engagement; similarly, the specific structure of the locking groove 2210 can also be an L-shaped groove to form a block on the rotation path of the spring 30, and achieve engagement of the spring 30 through abutment.

[0029] Based on the above structure, when the power unit 210 drives the transmission head 220 to rotate, the contact surface between the side wall of the snap-fit ​​groove 2210 and the end of the spring 30 generates a pushing effect, causing the spring 30 to rotate synchronously around its axis, thereby realizing the automatic adjustment of the angle of the spring 30. To further optimize the above technical solution, the transmission head 220 is also provided with a protrusion 2220. The protrusion 2220 can extend axially into the annular area of ​​the spring 30. It is preferably configured as a columnar structure, and its outer diameter is smaller than the inner diameter of the spring 30 to achieve clearance fit. The extension action pre-positions the transmission head 220 and maintains its relative position with the spring 30. The locking groove 2210 is opened on the outer peripheral wall of the protrusion 2220. When the protrusion 2220 extends into the inner ring of the spring 30 and rotates, the locking groove 2210 can smoothly abut one end of the spring 30. This allows the transmission head 220 to further limit the axial movement of the spring 30 while driving it to rotate, thereby reducing the risk of spring 30 offset or abnormal deformation during rotation. This ensures the coaxiality of the spring 30 axis and the rotation axis of the transmission head 220 during calibration and improves the rotation adjustment accuracy of the spring 30. It should be noted that the end of the protrusion 2220 is provided with a guide slope to facilitate the insertion of the inner ring of the spring 30.

[0030] Furthermore, in the spring and rocker installation fixture provided in this embodiment, in order to further improve the adjustment accuracy and intelligence, the transmission head 220 passes through at least a calibration position and an installation position during the motion driven by the power unit 210. Specifically, the transmission head 220 keeps in contact with the end of the spring 30 at the calibration position, and the transmission head 220 calibrates the spring 30 at the calibration position to confirm the basic state of the spring 30 before adjusting the angle of the spring 30, so as to facilitate the quantification of subsequent angle adjustment. It should also be noted that, preferably, the transmission head 220 simulates the contact state between the end of the spring 30 and the rocker 40 at the calibration position, that is, the assembly angle adjustment of the spring 30 is based on the contact state between the end of the spring 30 and the rocker 40. The installation position is the endpoint of the angle adjustment of the spring 30 after the transmission head 220 rotates by a preset angle based on the calibration position. It should be noted that during the rotation of the transmission head 220 from the calibration position to the installation position, it maintains contact with the end of the spring 30 to ensure that the rotation angle of the spring 30 is consistent with the rotation angle of the transmission head 220, thereby improving the accuracy of the angle adjustment process. Furthermore, it should be noted that the transmission head 220 can be driven by a servo motor or a stepper motor to achieve precise angle control and rotation speed adjustment.

[0031] It should be noted that by setting the calibration position and installation position of the transmission head 220, the spring 30 can be basically calibrated and the preset angle can be adjusted. At the same time, the automation of the spring 30 angle adjustment can be improved by the drive of the power unit 210, eliminating the need for manual assembly and reducing adjustment costs.

[0032] Based on the above embodiments, a preset angle, i.e., the angle through which the transmission head 220 rotates from the calibration position to the installation position, is 45°-135°. This limits the rotation range of the transmission head 220 from the calibration position to the installation position. It should be noted that this angle range can specifically be 60°, 90°, or 120°. This preset angle can precisely control the relative position of the spring 30 end and the rocker 40 contact surface. In the calibration position, the transmission head 220 simulates the contact surface state of the rocker 40, ensuring the initial position of the spring 30 end is correct. During rotation, it maintains a contact state to avoid positional deviation. Finally, when reaching the installation position, the spring 30 end and the actual contact surface of the rocker 40 achieve the designed fit. Furthermore, within the aforementioned preset angle range, the spring 30 has a sufficient engagement angle with the side of the rocker 40 in both clockwise and counterclockwise rotation, thus avoiding poor contact caused by the spring 30 contacting the side of the rocker 40 during disordered rotation in both directions.

[0033] Furthermore, before adjusting the angle of the spring 30, the transmission head 220 needs to accurately align with the end of the spring 30, which can be achieved manually or automatically. Specifically, in some embodiments of this disclosure, after contacting one axial end of the spring 30, the transmission head 220 rotates one full turn in the direction toward the installation position to achieve abutment and engagement with the spring 30. It should be noted that since the end of the spring 30 cannot directly abut against the transmission head 220, if the transmission head 220 is directly adjusted to the preset angle, the spring 30 cannot rotate from the initial position to the preset angle. Therefore, after the transmission head 220 contacts one side of the spring 30 along its axis, the transmission head 220 and the spring 30 are in a cooperative relationship. At this time, the transmission head 220 rotates one revolution to correct the circumferential position deviation of the spring 30. During the complete 360° rotation of the transmission head 220, the transmission head 220 can smoothly abut against the free end of the spring 30. During one revolution, the spring 30 and the transmission head 220 are driven to the calibration position while maintaining contact. This allows the spring 30 and the transmission head 220 to rotate synchronously by the same angle during the subsequent adjustment to the installation position.

[0034] In other embodiments of this disclosure, in order to achieve the contact between the transmission head 220 and the spring 30 at the calibration position, the spring 30 can be rotated along its axis by the limiting component 10 provided on the other side of the spring 30 so as to contact and cooperate with the transmission head 220, or the operator can manually rotate the spring 30 until its end is fully in contact with the transmission head 220, which has a certain production flexibility, that is, the contact and cooperation method between the spring 30 and the transmission head 220 can be selected according to the actual working conditions.

[0035] Furthermore, in some embodiments of this disclosure, the limiting component 10 disposed on one side of the spring 30 includes a limiting block 110 with a stepped configuration along the axial direction, so as to achieve axial positioning of the spring 30 through a multi-stage stepped structure. Specifically, at least one stage of the stepped structure of the limiting block 110 extends into the annular region of the spring 30, and can be clearance-fitted or contact-fitted with the inner wall of the spring 30. At the same time, the outer diameter of the limiting block 110 is larger than the outer diameter of the spring 30, so as to abut against the axial side of the spring 30. The above structure achieves both radial and axial positioning of the spring 30 through the stepped limiting block 110. That is, the structure of the limiting block 110 extending into the inner ring of the spring 30 prevents radial displacement, while the setting of the outer diameter of the limiting block 110 avoids axial movement of the spring 30. Compared with the planar structure, the stepped limiting block 110 can adapt to the spring 30 under different compression states and maintain the stable coaxiality of the spring 30 during angle adjustment.

[0036] It should also be noted that the stepped structure of the preferred limiting component 10 extending into the annular area of ​​the spring 30 abuts against the inner wall of the spring 30 to achieve precise axial positioning of the spring 30, so that the spring 30 cannot move radially based on the limiting block 110, thus avoiding errors caused by uneven force or positional deviation of the spring 30 during the adjustment process.

[0037] Furthermore, after the spring 30 has achieved angle adjustment, it is directly clamped by downstream structures such as grippers at the current angle reference and moved to the assembly process with the rocker 40 for installation, so that the spring 30 maintains its relative position and angle with the rocker 40.

[0038] Furthermore, it should be noted that in the spring and rocker installation fixture provided in this embodiment, at least one of the limiting component 10 and the calibration component 20 can move axially, and the axial movement can be achieved by a cylinder, hydraulic cylinder, electric push rod, or lead screw and nut mechanism. During the angle adjustment of the spring 30, the axial movement of the limiting component 10 or the calibration component 20 can quickly complete the position adjustment without disassembling the fixture, and can accommodate springs 30 of different lengths. The limiting component 10 and the calibration component 20 compress the spring 30 from both sides, so that the free end of the spring 30 can smoothly abut against the transmission head 220, avoiding the problem of axial movement of the spring 30 caused by excessive distance between the limiting component 10 and the calibration component 20, and optimizing the accuracy of the spring 30 adjustment process.

[0039] The terms "first," "second," "left side," and "right side," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units may not be defined in the listed steps or units, but may include steps or units not listed.

[0040] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fixture for installing a spring and a rocker, characterized in that, The device includes a limiting component and a calibration component, which are located on opposite sides of the spring along its axial direction. The limiting component limits the axial position of the spring, and the calibration component includes a power unit and a transmission head. The power unit drives the transmission head to rotate, and the transmission head abuts against one end of the spring along its axial direction and, driven by the power unit, causes the spring to rotate along its axis.

2. The mounting fixture for the spring and rocker as described in claim 1, characterized in that, The transmission head is provided with an end that can engage the spring and abut against a groove that drives the spring to rotate.

3. The mounting fixture for the spring and rocker as described in claim 2, characterized in that, The transmission head also includes a protrusion that can extend axially into the annular region of the spring, and the snap-fit ​​groove is disposed on the outer periphery of the protrusion.

4. The mounting fixture for the spring and rocker as described in claim 1, characterized in that, The transmission head includes at least a calibration position and an installation position. The transmission head abuts against the end of the spring at the calibration position and simulates the contact state between the end of the spring and the rocker. The transmission head rotates from the calibration position by a preset angle to the installation position, and the transmission head remains in contact with the end of the spring during the process of rotating from the calibration position to the installation position.

5. The mounting fixture for the spring and rocker as described in claim 4, characterized in that, The preset angle is 45°-135°.

6. The mounting fixture for the spring and rocker as described in claim 4, characterized in that, The transmission head contacts one side of the spring along its axial direction and rotates one revolution in the direction toward the installation position to engage with the spring.

7. The mounting fixture for the spring and rocker as described in claim 4, characterized in that, The transmission head maintains the calibration position in contact with the spring, and the limiting component or manual operation rotates the spring until its end abuts against the transmission head.

8. The mounting fixture for the spring and rocker as described in claim 1, characterized in that, The limiting component includes a limiting block with a stepped configuration along the axial direction, at least one step of the limiting block extending into the annular region of the spring, and the outer diameter of the limiting block is larger than the outer diameter of the spring.

9. The mounting fixture for the spring and rocker as described in claim 8, characterized in that, The limiting component extends into the stepped structure within the annular region of the spring and abuts against the inner wall of the spring.

10. The mounting fixture for the spring and rocker as described in any one of claims 1-9, characterized in that, At least one of the limiting component and the calibration component is capable of axial telescopic movement.

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