Spring contraction mechanism

Abstract

The invention provides a spring contraction mechanism which enables the contraction deformation posture of a special-shaped spring to be stable and reliable and ensures the quality of a subsequently assembled product. The device comprises a vertical mounting seat; connecting a spring platform; a lower jacking mechanism; and an upper guide shrink chamber; the spring receiving platform is fixedly arranged in the middle of the vertical mounting seat in the height direction, a spring placing hole and a spring feeding track are arranged on the spring receiving platform, the spring is placed in the spring placing hole along the spring feeding track, a lower jacking mechanism is arranged under the spring placing hole, and a lower jacking mechanism is arranged under the lower jacking mechanism. An upper guiding shrinkage cavity is formed over the spring containing holes, the lower jacking mechanism circularly jacks the springs fed into the spring containing holes one by one into the upper guiding shrinkage cavity in a reciprocating mode, and the top of the upper guiding shrinkage cavity is open.

Description

Technical Field

[0001] This invention relates to the technical field of spring assembly, specifically to spring retraction mechanisms. Background Technology

[0002] The irregularly shaped spring includes two downward-convex free ends and at least one coil body. In the existing technology, the coil body of the irregularly shaped spring is manually clamped during assembly. Then, the downward-convex free ends are aligned with the corresponding mounting holes of the workpiece, and the coil body is lowered into the mounting cavity of the workpiece. In the existing technology, the irregularly shaped spring, which is originally naturally outward-expanding, is contracted by manual compression. However, in the process of manual compression, spring deformation or incomplete contraction is inevitable. Therefore, it is necessary to continue to develop a mechanism that can ensure the reliable contraction and deformation of the irregularly shaped spring. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a spring retraction mechanism that ensures the stable and reliable retraction deformation of irregularly shaped springs, thereby guaranteeing the quality of subsequently assembled products.

[0004] The spring retraction mechanism is characterized in that it comprises: Vertical mounting base; Connect to the spring platform; Lower lifting mechanism; And the upper guide contraction cavity; The vertical mounting base has a spring receiving platform fixed at its center in the height direction. The spring receiving platform is provided with a spring placement hole and a spring feeding track. The spring is placed in the spring placement hole along the spring feeding track. A lower lifting mechanism is provided directly below the spring placement hole, and an upper guide shrinking cavity is provided directly above the spring placement hole. The lower lifting mechanism cyclically lifts the springs fed into the spring placement hole one by one into the upper guide shrinking cavity. The upper guide shrinking cavity has an opening at the top.

[0005] Its further features are: The spring placement hole is arranged in a shape that mimics the uncontracted state of the spring in the standard posture. The upper part of the vertical mounting base is provided with an upper guide block, and the upper guide block is provided with an upper guide shrinkage cavity that runs through the height direction. The upper guide shrinkage cavity includes a lower large-diameter cavity, a middle guide shrinkage cavity, and an upper small-diameter cavity, which ensures that the spring coil is reliably shrinked. The top of the upper guide block is also provided with an upwardly protruding positioning post, which is used to reliably correspond to the spring receiving and transfer mechanism. A lower lifting mechanism is fixed below the spring placement hole on the spring receiving platform. The lower lifting mechanism includes a lifting cylinder and a lifting column. The lifting cylinder is fixed to the vertical mounting base through a connecting plate. The piston end of the lifting cylinder is fixed to the lifting column. The lifting column is used to drive the spring to move from bottom to top. The top of the lifting column includes a contour head, which is shaped to mimic the shape of the upper small-diameter cavity. The contour head has an inwardly recessed clearance groove corresponding to the lower convex free end, which allows the spring to be lifted in a standard posture. The thickness of the spring receiving platform corresponds to the position of the spring placement hole, and a guide hole for the copying head is provided. When the copying head is not in operation, it is placed in the guide hole for the copying head, so that the copying head can operate stably and reliably. The upper surface of the spring receiving platform is provided with a stop protrusion corresponding to the outer side of the spring placement hole. The stop protrusion ensures that the spring is accurately and reliably delivered to the position of the spring placement hole along the spring feeding track.

[0006] When the spring is placed in the spring placement hole, the lifting mechanism drives the contour head to move the spring along the upper guide contraction cavity to obtain the standard contraction posture. Then, it is stably received by the subsequent mechanism at the top and transferred and installed on the corresponding product. This makes the contraction deformation posture of the irregular spring stable and reliable, ensuring the quality of the subsequently assembled products. Attached Figure Description

[0007] Figure 1 This is a perspective view of the present invention (the contouring head is located at the top of the upper guide contraction cavity); Figure 2 This is a side view of the present invention; Figure 3 This is a cross-sectional view of the present invention; The names corresponding to the serial numbers in the diagram are as follows: Vertical mounting base 10, spring receiving platform 20, spring placement hole 21, spring feeding track 22, contour head guide hole 23, lower lifting mechanism 30, lifting cylinder 31, lifting column 32, connecting plate 33, contour head 34, concave relief groove 341, upper guide shrinkage cavity 40, lower large diameter cavity 41, middle guide shrinkage cavity 42, upper small diameter cavity 43, upper guide block 50, upper convex positioning post 51, stop protrusion 60. Detailed Implementation

[0008] Spring retraction mechanism, see Figures 1-3 It includes a vertical mounting base 10, a spring-loaded platform 20, a lower lifting mechanism 30, and an upper guide contraction cavity 40; A spring receiving platform 20 is fixed in the middle of the vertical mounting base 10 in the height direction. The spring receiving platform 20 is provided with a spring placement hole 21 and a spring feeding track 22. The spring is placed in the spring placement hole 21 along the spring feeding track 22. A lower lifting mechanism 30 is provided directly below the spring placement hole 21. An upper guide shrinking cavity 40 is provided directly above the spring placement hole 21. The lower lifting mechanism 30 cyclically lifts the springs that are fed into the spring placement hole 21 one by one into the upper guide shrinking cavity 40. The upper guide shrinking cavity 40 has an opening at the top.

[0009] In a specific embodiment, the spring placement hole 21 is arranged in a shape that mimics the uncontracted state of a spring in a standard posture. The upper part of the vertical mounting base 10 is provided with an upper guide block 50, and the upper guide block 50 is provided with an upper guide shrinkage cavity 40 that runs through the height direction. The upper guide shrinkage cavity 40 includes a lower large-diameter cavity 41, a middle guide shrinkage cavity 42, and an upper small-diameter cavity 43, which ensures that the spring coil is reliably shrinked. The top of the upper guide block 50 is also provided with an upper protruding positioning post 51, which is used to reliably correspond to the spring receiving and transfer mechanism. A lower lifting mechanism 30 is fixedly provided below the spring placement hole 21 on the spring platform 20. The lower lifting mechanism 30 includes a lifting cylinder 31 and a lifting column 32. The lifting cylinder 31 is fixedly connected to the vertical mounting base 10 through a connecting plate 33. The piston end of the lifting cylinder 31 is fixedly connected to the lifting column 32. The lifting column 32 is used to drive the spring to move from bottom to top. The top of the lifting column 32 includes a contour head 34, which is contoured to the shape of the upper small-diameter cavity 43. The contour head 34 is provided with an inward relief groove 341 corresponding to the lower convex free end, which allows the spring to be lifted in a standard posture. The thickness of the spring platform 20 corresponds to the position of the spring placement hole 21 and a guide hole 23 for the copying head is provided. When the copying head 34 is not working, it is placed in the guide hole 23, so that the copying head 34 can operate stably and reliably. The upper surface of the spring receiving platform 20 is provided with a stop protrusion 60 corresponding to the outer side of the spring placement hole 21. The stop protrusion 60 ensures that the spring is accurately and reliably delivered to the position of the spring placement hole 21 along the spring feeding track 22.

[0010] Its working principle is as follows: When the spring is placed in the spring placement hole 21 along the spring feeding track 22, the lifting cylinder 31 drives the contour head 34 to move the spring along the upper guide shrinkage cavity 40 to obtain the standard shrinkage posture. Then, it is stably received by the subsequent mechanism at the top and transferred and installed on the corresponding product. This makes the shrinkage deformation posture of the irregular spring stable and reliable, ensuring the quality of the products assembled later.

[0011] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0012] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A spring retraction mechanism, characterized in that... It includes: Vertical mounting base; Connect to the spring platform; Lower lifting mechanism; And the upper guide contraction cavity; The vertical mounting base has a spring receiving platform fixed at its center in the height direction. The spring receiving platform is provided with a spring placement hole and a spring feeding track. The spring is placed in the spring placement hole along the spring feeding track. A lower lifting mechanism is provided directly below the spring placement hole, and an upper guide shrinking cavity is provided directly above the spring placement hole. The lower lifting mechanism cyclically lifts the springs fed into the spring placement hole one by one into the upper guide shrinking cavity. The upper guide shrinking cavity has an opening at the top.

2. The spring retraction mechanism according to claim 1, characterized in that: The spring placement hole is arranged to mimic the shape of the uncontracted spring in the standard posture.

3. The spring retraction mechanism according to claim 2, characterized in that: The vertical mounting base is provided with an upper guide block at its upper part, and the upper guide block is provided with an upper guide contraction cavity that extends through the height direction. The upper guide contraction cavity includes a lower large-diameter cavity, a middle guide contraction cavity, and an upper small-diameter cavity.

4. The spring retraction mechanism according to claim 3, characterized in that: The top of the upper guide block is also provided with an upwardly protruding positioning post, which is used to reliably correspond to the spring receiving and transfer mechanism.

5. The spring retraction mechanism according to claim 3, characterized in that: A lower lifting mechanism is fixed below the spring placement hole on the spring receiving platform. The lower lifting mechanism includes a lifting cylinder and a lifting column. The lifting cylinder is fixed to the vertical mounting base through a connecting plate. The piston end of the lifting cylinder is fixed to the lifting column. The lifting column is used to drive the spring to move from bottom to top.

6. The spring retraction mechanism according to claim 5, characterized in that: The top of the lifting column includes a contour head, which is shaped to mimic the shape of the upper small-diameter cavity, and the contour head is provided with an inwardly recessed clearance groove corresponding to the lower convex free end.

7. The spring retraction mechanism according to claim 6, characterized in that: The thickness of the spring receiving platform corresponds to the position of the spring placement hole, and a guide hole for the copying head is provided. The copying head is placed in the guide hole when not in operation.

8. The spring retraction mechanism according to claim 7, characterized in that: The top of the lifting column includes a contour head, which is shaped to mimic the shape of the upper small-diameter cavity, and the contour head is provided with an inwardly recessed clearance groove corresponding to the lower convex free end.

9. The spring retraction mechanism according to claim 1, characterized in that: The upper surface of the spring receiving platform is provided with a stop protrusion corresponding to the outer side of the spring placement hole.

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