Ultra-deep hole bottom press fitting spring mechanism

Abstract

The utility model relates to an ultra-deep hole bottom press-fitting spring mechanism which comprises a large top plate and a large bottom plate which are vertically spaced and parallel, outer plates are installed on three peripheral faces of the large top plate and the large bottom plate through fasteners respectively, and a protection plate is installed above the fourth face through a fastener. A standard air cylinder is fixed to the upper surface of the large top plate, the output end of the standard air cylinder penetrates through the large top plate and then is connected with a spring press-in assembly, guide columns are installed at the four corners of the spring press-in assembly respectively, and each guide column is fixed between the large top plate and the large bottom plate. The spring press-in assembly is driven to move up and down along the guide column; a tool is fixedly installed on the upper surface of the large bottom plate, and a workpiece is placed on the tool in a matched mode. By means of mutual cooperation among the air cylinders, the tool, the spring press-in assembly, the spring press-in mechanism and other components, simultaneous press-fitting work of four reset springs of a workpiece can be conveniently completed, installation is accurate and in place, the working efficiency is high, and the product quality is good.

Description

Technical Field

[0001] The utility model relates to the technical field of spring pressing devices, in particular to a spring pressing mechanism at the bottom of an ultra-deep hole. Background Art

[0002] In the process of automobile part production, there are usually process parts that need to install springs. For example, in the middle key assembly of an automobile steering wheel, a return spring needs to be installed, and this spring is located in a deep hole of a plastic part. At present, in the prior art, operators need to manually install this return spring, with low work efficiency, and there are also phenomena of missing installation and not being installed in place by manual assembly, which will lead to product instability and affect the use of the product. Summary of the Utility Model

[0003] The applicant of the present utility model aims at the above-mentioned shortcomings in the existing production technology, and provides a spring pressing mechanism at the bottom of an ultra-deep hole with a reasonable structure, so as to conveniently complete the installation of the return spring, and even in a deep hole, it can be conveniently completed, greatly improving the work efficiency and ensuring the stability of the product.

[0004] The technical solution adopted by the present utility model is as follows:

[0005] A spring pressing mechanism at the bottom of an ultra-deep hole includes a large top plate and a large bottom plate that are parallel and spaced apart vertically. Three outer surfaces of the large top plate and the large bottom plate are respectively installed with outer plates through fasteners, and a protective plate is installed above the fourth surface through fasteners; a standard cylinder is fixed on the upper surface of the large top plate, and the output end of the standard cylinder passes through the large top plate and is connected to a spring pressing assembly. Guide columns are respectively installed at four corners of the spring pressing assembly, and each guide column is fixed between the large top plate and the large bottom plate. The standard cylinder drives the spring pressing assembly to move up and down along the guide columns; a tooling is fixedly installed on the upper surface of the large bottom plate, and a workpiece is placed on the tooling in a matching manner.

[0006] As a further improvement of the above technical solution:

[0007] The spring pressing assembly corresponds to the position where the spring needs to be installed on the tooling.

[0008] The structure of the spring pressing assembly is as follows: it includes a sliding plate. The middle position of the top surface of the sliding plate is fixed to the output end of the standard cylinder. The middle position of the bottom surface of the sliding plate is fixed with a pushing cylinder. The output end of the pushing cylinder is fixed with a pressing plate through a joint. A lower connecting plate is arranged below the pressing plate. Support rods are respectively installed at four corners between the lower connecting plate and the sliding plate. Spring pressing mechanisms are respectively installed at four corners of the pressing plate. Each spring pressing mechanism passes through the lower connecting plate, and a return spring to be installed is sleeved below each spring pressing mechanism.

[0009] Round holes are respectively formed at four corners of the sliding plate, and guide columns pass through the round holes.

[0010] The structure of a single spring pressing mechanism is as follows: it includes a positioning shaft fixed to the bottom surface of the lower connecting plate. The center of the positioning shaft is penetrated, and a pulling shaft is installed. The pulling shaft passes through the lower connecting plate and is connected to a pressing plate. At the same time, a sensor is installed on the positioning shaft beside the pulling shaft. A convex platform is provided at the bottom of the positioning shaft, a return spring is sleeved outside the convex platform, and a pair of symmetric clamping blocks are installed at the bottoms of the convex platform and the pulling shaft through a pin shaft.

[0011] The clamping block has a bent structure.

[0012] When the clamping blocks open, they clamp the return spring; when the clamping blocks close, the return spring is free.

[0013] The height of the protection plate is less than the height of the outer plate.

[0014] Safety light curtains are respectively arranged at the front two-side positions of the large bottom plate.

[0015] The beneficial effects of the present utility model are as follows:

[0016] The structure of the present utility model is compact and reasonable, and the operation is convenient. Through the mutual cooperation of various components such as cylinders, toolings, spring pressing assemblies and spring pressing mechanisms, the simultaneous pressing work of four return springs of the workpiece can be conveniently completed, the installation is accurate and in place, the work efficiency is high, and the product quality is excellent.

[0017] The products processed by using the present utility model can ensure that the product qualification rate reaches one-thousandth.

[0018] The present utility model can also meet the requirements of batch production. Together with automatic equipment, the installation work of the return spring can be automatically completed, the overall assembly efficiency is high, the installation is accurate, and the product stability is good. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the present utility model.

[0020] Figure 2 It is a schematic structural diagram of the present utility model (the protection plate is omitted).

[0021] Figure 3 It is a front view of the present utility model.

[0022] Figure 4 It is Figure 3 a full sectional view along the A-A section in

[0023] Figure 5 It is a schematic structural diagram of the spring pressing assembly of the present utility model.

[0024] Figure 6 It is the front view of the utility model spring pressing-in component.

[0025] Figure 7 It is the structural schematic diagram of the utility model spring pressing-in mechanism.

[0026] Figure 8 It is the exploded view of the utility model spring pressing-in mechanism.

[0027] Figure 9 It is the front view of the utility model spring pressing-in mechanism.

[0028] Figure 10 It is Figure 9 the full sectional view along the B-B section in

[0029] Wherein: 1. Standard cylinder; 2. Protection plate; 3. Outer plate; 4. Spring pressing-in component; 5. Workpiece; 6. Tooling; 7. Large bottom plate; 8. Safety light curtain; 9. Guide post; 10. Large top plate; 11. Return spring;

[0030] 401. Slide plate; 402. Thrust cylinder; 403. Support rod; 404. Lower connecting plate; 405. Spring pressing-in mechanism; 406. Connector; 407. Pressure plate;

[0031] 40501. Sensor; 40502. Pulling shaft; 40503. Positioning shaft; 40504. Clamping block; 40505. Boss; 40506. Pin shaft. Specific implementation mode

[0032] The following combines with the attached drawings to illustrate the specific implementation mode of the present utility model.

[0033] As Figures 1 - 10 shown, the ultra-deep hole bottom spring pressing-in mechanism of this embodiment includes a large top plate 10 and a large bottom plate 7 that are parallel at intervals up and down. Three peripheral surfaces of the large top plate 10 and the large bottom plate 7 are respectively installed with outer plates 3 through fasteners, and a protection plate 2 is installed above the fourth surface through fasteners; a standard cylinder 1 is fixed on the upper surface of the large top plate 10. The output end of the standard cylinder 1 passes through the large top plate 10 and then connects to the spring pressing-in component 4. Guide posts 9 are respectively installed at the four corners of the spring pressing-in component 4. Each guide post 9 is fixed between the large top plate 10 and the large bottom plate 7. The function of the standard cylinder 1 is to drive the spring pressing-in component 4 to move up and down along the guide posts 9; a tooling 6 is fixedly installed on the upper surface of the large bottom plate 7, and a workpiece 5 is placed on the tooling 6 in a matching manner.

[0034] The spring pressing-in component 4 corresponds to the position on the tooling 6 where the spring needs to be installed.

[0035] The structure of the spring pressing-in assembly 4 is as follows: It includes a sliding plate 401. The middle position of the top surface of the sliding plate 401 is fixed to the output end of the standard cylinder 1. The middle position of the bottom surface of the sliding plate 401 is fixed with a pushing cylinder 402. The output end of the pushing cylinder 402 is fixed with a pressing plate 407 through a joint 406. A lower connecting plate 404 is arranged below the pressing plate 407. Support rods 403 are respectively installed at the four corners between the lower connecting plate 404 and the sliding plate 401. Spring pressing-in mechanisms 405 are respectively installed at the four corners of the pressing plate 407. Each spring pressing-in mechanism 405 passes through the lower connecting plate 404, and a reset spring 11 to be installed is sleeved below each spring pressing-in mechanism 405.

[0036] Round holes are respectively opened at the four corners of the sliding plate 401, and guide posts 9 pass through the round holes.

[0037] The structure of each spring pressing-in mechanism 405 is as follows: It includes a positioning shaft 40503 fixed to the bottom surface of the lower connecting plate 404. The center of the positioning shaft 40503 is penetrated, and a pulling shaft 40502 is installed. The pulling shaft 40502 passes through the lower connecting plate 404 and is connected to the pressing plate 407. At the same time, a sensor 40501 is installed at the position where the positioning shaft 40503 beside the pulling shaft 40502 exits. A boss 40505 is arranged at the bottom of the positioning shaft 40503. The reset spring 11 is sleeved outside the boss 40505. A pair of symmetric clamping blocks 40504 are simultaneously installed at the bottoms of the boss 40505 and the pulling shaft 40502 through a pin shaft 40506.

[0038] The clamping block 40504 has a bent structure.

[0039] When the clamping block 40504 opens, it clamps the reset spring 11; when the clamping block 40504 closes, the reset spring 11 is free.

[0040] The height of the protection plate 2 is less than the height of the outer plate 3.

[0041] Safety light curtains 8 are respectively arranged at the front two-side positions of the large bottom plate 7.

[0042] During the actual working process:

[0043] First, place the product (in this embodiment, it is the workpiece 5, that is, the middle key assembly of the automotive steering wheel) at the fixed tooling 6 position, and then manually insert the reset spring 11 into the spring pressing-in mechanism 405, adjust the positions of the four reset springs 11, and detect each reset spring 11 (the detection mechanism is not shown in the figure and is not the object to be protected by this application).

[0044] Then manually start the device. The push cylinder 402 in the spring pressing component 4 extends. Through the action of the joint 406 and the pressing plate 407, the pulling shaft 40502 in the spring pressing mechanism 405 is driven to extend downward. Then, through the action of the pin shaft 40506, the two symmetrical clamping blocks 40504 swing and make an opening movement. The clamping blocks 40504 open from the spring pitch clearance position to clamp the spring.

[0045] Then the standard cylinder 1 works, driving the entire spring pressing component 4 to descend until the return spring 11 is placed at the set position in the deep cavity of the workpiece 5.

[0046] Finally, control the push cylinder 402 in the spring pressing component 4 to retract. Through the action of the joint 406 and the pressing plate 407, the pulling shaft 40502 in the spring pressing mechanism 405 is driven to retract upward, so that the two symmetrical clamping blocks 40504 swing and make a closing movement. After closing, the clamping blocks 40504 withdraw from the return spring 11, that is, the return spring 11 is installed in place.

[0047] The whole installation process is simple and convenient, only requiring simple actions of the cylinder.

[0048] The above description is an explanation of the present invention, not a limitation of the invention. The scope defined by the present invention can be seen in the claims. Any form of modification can be made within the protection scope of the present invention.

Claims

1. A spring mechanism for bottom press-fitting in ultra-deep holes, characterized in that: It includes a large top plate (10) and a large bottom plate (7) that are parallel and spaced vertically. The three peripheral faces of the large top plate (10) and the large bottom plate (7) are respectively installed with outer plates (3) through fasteners, and a protective plate (2) is installed above the fourth face through fasteners; A standard cylinder (1) is fixed on the upper surface of the large top plate (10). The output end of the standard cylinder (1) passes through the large top plate (10) and is connected to a spring pressing assembly (4). Guide columns (9) are respectively installed at the four corners of the spring pressing assembly (4). Each guide column (9) is fixed between the large top plate (10) and the large bottom plate (7). The function of the standard cylinder (1) is to drive the spring pressing assembly (4) to move up and down along the guide columns (9); A tooling (6) is fixedly installed on the upper surface of the large bottom plate (7), and a workpiece (5) is placed on the tooling (6) in a mating manner.

2. The super-deep hole bottom press-fitting spring mechanism according to claim 1, characterized in that: The spring pressing assembly (4) corresponds to the positions on the tooling (6) where springs need to be installed.

3. The super-deep hole bottom press-fitting spring mechanism according to claim 1, characterized in that: The structure of the spring pressing assembly (4) is as follows: It includes a sliding plate (401). The middle position of the top surface of the sliding plate (401) is fixed to the output end of the standard cylinder (1). The middle position of the bottom surface of the sliding plate (401) is fixed with a pushing cylinder (402). The output end of the pushing cylinder (402) is fixed with a pressing plate (407) through a joint (406). A lower connecting plate (404) is arranged below the pressing plate (407). Support rods (403) are respectively installed at the four corners between the lower connecting plate (404) and the sliding plate (401). Spring pressing mechanisms (405) are respectively installed at the four corners of the pressing plate (407). Each spring pressing mechanism (405) passes through the lower connecting plate (404), and a reset spring (11) to be installed is sleeved below each spring pressing mechanism (405).

4. The super-deep hole bottom press-fitting spring mechanism according to claim 3, characterized in that: Round holes are respectively opened at the four corners of the sliding plate (401), and the guide columns (9) pass through the round holes.

5. The super-deep hole bottom press-fitting spring mechanism according to claim 3, characterized in that: The structure of each spring pressing mechanism (405) is as follows: It includes a positioning shaft (40503) fixed to the bottom surface of the lower connecting plate (404). The center of the positioning shaft (40503) is penetrated, and a pulling shaft (40502) is installed. The pulling shaft (40502) passes through the lower connecting plate (404) and is connected to the pressing plate (407). At the same time, a sensor (40501) is installed at the position where the positioning shaft (40503) beside the pulling shaft (40502) exits. A convex platform (40505) is arranged at the bottom of the positioning shaft (40503). The reset spring (11) is sleeved outside the convex platform (40505). A pair of symmetric clamping blocks (40504) are simultaneously installed at the bottoms of the convex platform (40505) and the pulling shaft (40502) through a pin shaft (40506).

6. The super-deep hole bottom press-fitting spring mechanism according to claim 5, wherein: The clamping block (40504) has a bent structure.

7. The super-deep hole bottom press-fitting spring mechanism according to claim 5, characterized in that: When the clamping block (40504) opens, it clamps the reset spring (11); when the clamping block (40504) closes, the reset spring (11) is free.

8. The super-deep hole bottom press-fitting spring mechanism according to claim 1, characterized in that: The height of the protective plate (2) is less than the height of the outer plate (3).

9. The super-deep hole bottom press-fitting spring mechanism according to claim 1, characterized in that: Safety light curtains (8) are respectively arranged at the front two sides of the large bottom plate (7).

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