Support multiple model compression sleeve tooling

By designing multi-model screw insert fittings, the high efficiency, precision, and flexibility of snap ring closing are achieved, solving the problems of high labor intensity, low precision, and severe tool wear in traditional screw insert assembly. It is suitable for precision assembly in the aerospace and military industries.

CN224390424UActive Publication Date: 2026-06-23SUZHOU TALENT MICROWAVE INC

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU TALENT MICROWAVE INC
Filing Date
2025-04-16
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Traditional screw assembly processes suffer from high labor intensity, difficulty in ensuring precision, severe tool wear, low production efficiency, and high product scratch rate.

Method used

The tooling uses a variety of fittings, including a lower mold base, lower template, slide plate, sliding slot, side plate, fixed slot, baffle, pressure plate, tie rod, quick clamp, punch, positioning pin, extension rod, pad, snap ring, and threaded sleeve. It achieves efficient and precise snap ring closing through precise positioning and flexible adjustment.

Benefits of technology

It improves the accuracy and efficiency of snap ring closing, extends tool life, and reduces operator fatigue, making it suitable for small-batch, multi-variety precision assembly needs in aerospace, military, and other fields.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses support multiple model dress pressure screw bush tool, including lower mould base, lower mould board, sliding slot board, N type sliding clamp, side plate, N type fixed clamp, baffle, pressure plate, pull rod, quick fixture, punch, positioning pin, lengthening rod, clasp spring, screw bush, the lower mould base is used for fixedly installed lower mould board and side plate, is installed to the equipment with punch through screw, the lower mould board, fixedly installs sliding slot board, fixed clamp, pressure plate part, dress pressure screw bush tool will clasp spring close mouth, close mouth's clasp spring is loaded into screw bush groove, and punch is pressed on and is assembled to screw bush, the utility model discloses satisfy the need of different model products, can quickly replace corresponding clasp spring close mouth structure and combined gasket plate subassembly, perfect solution traditional tooling " one machine one use " the limitation, realizes a set of tooling adaptation multiple model product's flexible production demand.
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Description

Technical Field

[0001] This utility model belongs to the technical field of fastener installation equipment, specifically relating to a tooling that supports the installation of multiple types of pressure threaded sleeves. Background Technology

[0002] In the field of mechanical assembly, especially connector assembly, it is necessary to install the nut (also known as a sleeving insert) and the outer conductor of the connector together. Traditional sleeving insert assembly processes commonly use a snap ring clamping technique. A snap ring is an important fastener, mainly used to fix the axial position of components and prevent axial movement on shafts or within holes. Currently, the main method is to use pliers for snap ring clamping, but this method has significant technical drawbacks. First, the operation requires applying considerable external force, resulting in high labor intensity and easy operator fatigue. Second, due to the lack of a precise positioning structure, the clamping accuracy is difficult to guarantee, often resulting in incomplete clamping and requiring repeated operations. More seriously, the entire assembly process must maintain a clamped state continuously; once it loosens, it needs to be re-clamped, severely impacting assembly efficiency.

[0003] Traditional processes still have significant quality problems. The jaws of pliers come into direct contact with the product, making them prone to surface scratches and resulting in a high defect rate. At the same time, the tools wear out quickly, and key components have a short lifespan, requiring replacement on average after only 5,000 operations. In actual production, tool damage due to improper operation is common, which not only increases production costs but may also cause production interruptions. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides a tooling that supports multiple types of press-fit threaded sleeves, which has the advantage of increasing the service life by 30% compared to traditional threaded sleeve tooling.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: It includes a lower mold base, a lower template, a sliding groove plate, a sliding locking position, a side plate, a fixed locking position, a baffle plate, a pressure plate, a pull rod, a quick clamp, a punch, a positioning pin, an extension rod, a pad, a retaining spring, and a threaded sleeve. The lower mold base is used to fix and install the lower template and the side plate, which are then installed onto a device with a punch using screws. The lower template fixes and installs the sliding groove plate, the fixed locking position, the pressure plate, the positioning pin, and the pad. The sliding groove plate restricts the sliding locking position, preventing it from deviating from its track. It merges with the fixed locking position to form a circle that closes the retaining spring, allowing it to be inserted into the threaded sleeve groove. The sliding locking position is a semi-circle that closes the retaining spring. The side plate is mainly used to install and fix the quick clamp. The fixing position is another semicircle that closes the snap ring. The baffle is used to block the product when assembling the threaded sleeve. The pressure plate blocks the sliding position, preventing it from dislodging from the slide plate. The pull rod hooks the sliding position, allowing it to slide back and forth within the slide plate. The quick clamp provides power for the sliding position to slide in the slide. The punch is used to press the product onto the threaded sleeve on the installation equipment. The positioning pin precisely positions the lower template and slide plate together. The extension rod easily closes the snap ring. The pad is used to adjust the height of various product models, achieving flexibility and versatility.

[0006] Preferably, the lower template and the slide plate are precisely positioned by positioning pins to form an integral unit, allowing for quick replacement of the retaining spring closing structure and pad.

[0007] Preferably, the snap ring position has a positioning system to prevent repeated closing.

[0008] Preferably, the slide plate can prevent the sliding position from deviating from the track.

[0009] Preferably, the pad includes two types: NMD type pad and SMA type pad.

[0010] Preferably, the sliding locking position includes an N-type sliding locking position and an SMA-type sliding locking position.

[0011] Preferably, the fixing slot includes an N-type fixing slot and an SMA-type fixing slot.

[0012] Preferably, the sliding locking position and the fixed locking position are combined to form a circle that closes the snap ring.

[0013] Preferably, the baffle can block the product when assembling the screw sleeve.

[0014] Preferably, the punch presses the product assembly threaded sleeve onto the installation equipment.

[0015] Preferably, the pull rod hooks onto the sliding stop, allowing the sliding stop to slide back and forth within the slide plate.

[0016] Preferably, the extension rod allows the retaining spring to be easily closed.

[0017] Preferably, the quick clamp provides power for the sliding slot to slide in the groove.

[0018] Preferably, the flexible universal type of the screw sleeve tooling is SMA type, N type, or NMD type.

[0019] Preferably, the pad can be adjusted to adjust the height of various product models.

[0020] Compared with existing technologies, this utility model uses flexible fitting screw sleeves of different models for assembly, which enables quick replacement of corresponding shrink circlip structural parts and pads. It also uses a circle formed by sliding and fixed locking positions for closing, which improves the accuracy of closing, ensures the integrity of the product, extends the service life of the circlip closing part, and reduces the force required for closing. At the same time, the pads can be used to adjust the height of various product models, making it particularly suitable for the small-batch, multi-variety precision assembly needs in aerospace, military and other fields.

[0021] Furthermore, the lower template and the slide plate are precisely positioned together by positioning pins to form an integral unit, allowing for quick replacement of the retaining spring closing structure and pad, reducing single-piece operation time, achieving repeatable positioning accuracy and rapid changeover within 2 minutes. The retaining spring position has a positioning system to prevent multiple closings, improving closing accuracy and extending the service life of the retaining spring.

[0022] Furthermore, the sliding plate can limit the sliding position from deviating from the track, ensuring that the sliding position is stable within the deviation range and effectively preventing positional shift during the closing process; the sliding position and the fixed position are combined into a circle, reducing the roundness error of the snap ring closing, improving the closing success rate, and solving the problems of elliptical deformation and repeated clamping that exist in traditional manual closing.

[0023] Furthermore, the baffle can block the product during the assembly of the threaded sleeve, effectively preventing product displacement, improving positioning accuracy, preventing pressing splashes, and reducing the surface scratch rate of the product; the punch presses the product assembly threaded sleeve on the installation equipment, which can reduce the single-piece pressing cycle and improve efficiency by 3 times compared with the traditional impact assembly method; the pull rod hooks the sliding position, allowing the sliding position to slide back and forth in the slide plate, realizing labor-saving operation and millimeter-level motion control in the closing process of the snap ring, improving the closing operation efficiency.

[0024] Furthermore, the extended rod allows the retaining ring to be easily closed, improving work efficiency. The quick clamp provides power for the sliding position to slide in the groove, which not only improves the efficiency of retaining ring closure and reduces operator fatigue, but also completely avoids the problem of uneven force caused by traditional manual operation, and its service life is more than 10 times that of traditional clamps.

[0025] Furthermore, the pad can be adjusted to adjust the height of various product models, reducing the changeover adjustment time from the traditional 15 minutes to 2 minutes. Practical applications show that the pad system improves tooling versatility by 300%, increases changeover efficiency by 10 times, and completely eliminates the cumulative error problem caused by traditional pad adjustments. After a 25Mrad dose radiation test, its mechanical properties still maintain more than 95% of the initial value.

[0026] Furthermore, the pads include two types: NMD type pads and SMA type pads; the sliding positions include N type sliding positions and SMA type sliding positions; and the fixed positions include N type fixed positions and SMA type fixed positions.

[0027] The beneficial effects of this utility model are:

[0028] To meet the needs of different product models, the corresponding snap ring closing structure and combination pad assembly can be quickly replaced, perfectly solving the limitation of traditional tooling being "one machine, one use" and realizing flexible production needs that allow one set of tooling to adapt to multiple product models. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the N-type press-fit screw sleeve tooling of this utility model embodiment;

[0030] Figure 2 This is a schematic diagram of the NMD type press-fit screw sleeve tooling according to an embodiment of this utility model;

[0031] Figure 3 This is a schematic diagram of the SMA type press-fit screw sleeve tooling according to an embodiment of this utility model;

[0032] Figure 4 This is a schematic diagram of the side plate of an embodiment of this utility model;

[0033] Figure 5 This is a schematic diagram of the punch in an embodiment of the present invention;

[0034] Figure 6 This is a schematic diagram of the baffle in an embodiment of the present utility model;

[0035] Figure 7 This is a schematic diagram of the fixed card position according to an embodiment of this utility model;

[0036] Figure 8 This is a schematic diagram of the slide plate according to an embodiment of the present utility model;

[0037] Figure 9 This is a schematic diagram of the sliding locking position according to an embodiment of the present invention;

[0038] Figure 10 This is a schematic diagram of the extension rod according to an embodiment of the present invention;

[0039] Figure 11 This is a schematic diagram of the quick clamp according to an embodiment of the present invention;

[0040] Figure 12 This is a schematic diagram of the pull rod according to an embodiment of the present utility model;

[0041] Figure 13 This is a schematic diagram of the template in an embodiment of this utility model;

[0042] Figure 14 This is a schematic diagram of the lower mold base according to an embodiment of the present utility model;

[0043] Figure 15 This is a schematic diagram of the pressure plate in an embodiment of this utility model;

[0044] Figure 16 This is a schematic diagram of the SMA type pad according to an embodiment of the present invention;

[0045] Figure 17 This is a schematic diagram of the SMA fixing according to an embodiment of the present invention;

[0046] Figure 18 This is a schematic diagram of the SMA sliding according to an embodiment of the present invention;

[0047] Figure 19 This is a schematic diagram of the NMD type pad according to an embodiment of the present invention.

[0048] Among them, 1-mold base, 2-lower template, 3-sliding plate, 4-sliding slot, 41-N-type sliding slot, 42-SMA-type sliding slot, 5-side plate, 6-fixed slot, 61-N-type fixed slot, 62-SMA-type fixed slot, 7-baffle, 8-pressure plate, 9-pull rod, 10-quick clamp, 11-punch, 12-positioning pin, 13-extension rod, 14-pad, 141-NMD-type pad, 142-SMA-type pad, 15-circlip, 16-screw sleeve. Detailed Implementation

[0049] The present invention will be further explained and described below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0050] Example 1: N-type pressure sleeve mounting fixture

[0051] This utility model embodiment provides a tooling that supports N-type compression sleeve installation. See [link / reference] Figure 1The assembly includes a lower mold base 1, a lower template 2, a sliding plate 3, an N-type sliding catch 41, a side plate 5, an N-type fixed catch 61, a baffle 7, a pressure plate 8, a pull rod 9, a quick clamp 10, a punch 11, a positioning pin 12, an extension rod 13, a retaining spring 15, and a screw sleeve 16. The lower mold base 1 is used to fix and install the lower template 2 and the side plate 5, which are installed onto the equipment with the punch 11 by screws. The lower template 2 is used to fix and install the sliding plate 3, the fixed catch 6, and the pressure plate 8. The sliding catch 4 is a component of the retaining spring 15, which is a semicircle in this example. The fixed catch 6 is another component of the retaining spring 15, which is also a semicircle in this example. The sliding plate 3 is used to restrict the sliding catch 4, preventing it from deviating from its track, and engages with the fixed catch 6. The retaining ring 15 is closed into a circle and then inserted into the groove of the threaded sleeve 16. The side plate 6 is mainly used to install and fix the quick clamp 10. The baffle 7 is used to block the product when assembling the threaded sleeve 16. The product in this embodiment is a connector, and the connector model can be SMA, N, or NMD. The pressure plate 8 blocks the sliding position 4 so that the sliding position 4 does not leave the position in the slide plate 3. The pull rod 9 hooks the sliding position 4 so that the sliding position 4 can slide back and forth in the slide plate 3. The quick clamp 10 can quickly clamp the sliding position 4 and provide power for the sliding position 4 to slide in the slide. The sliding position and the quick clamp are connected together so that the closing can be achieved, which is similar to the principle of using pliers.

[0052] The punch 11, installed on the equipment, presses the product assembly sleeve 16. Its function is to use pressure to press the product sleeve 16 and the outer conductor together, with the snap ring in the middle playing a role in preventing it from falling off.

[0053] The lower template 2 and the slide plate 3 are precisely positioned by the positioning pin 12 and then integrated. The extension rod 13 can easily close the snap ring 15. Therefore, the snap ring in this embodiment is called snap ring 15. Preferably, the slide plate 3 can limit the sliding position from deviating from the track, which can ensure that the sliding position 4 is stable within the deviation range and effectively prevent positional deviation during the closing process. The sliding position 4 and the fixed position 6 are combined into a circle, which reduces the roundness error of the snap ring 15 and improves the closing success rate. It solves the problems of elliptical deformation and repeated clamping that exist in traditional manual closing.

[0054] Preferably, the baffle 5 can block the product during the assembly of the threaded sleeve 16, effectively preventing product displacement, improving positioning accuracy, preventing pressing splashes, and reducing the surface scratch rate of the product; the punch 11 presses the product onto the threaded sleeve 16 on the installation equipment, which can reduce the single-piece pressing cycle and improve efficiency by 3 times compared with the traditional impact assembly method. The pull rod 9 hooks the sliding locking position 4, allowing the sliding locking position 4 to slide back and forth in the slide plate 3, realizing labor-saving operation and millimeter-level motion control in the closing process of the retaining spring 15, and improving the closing operation efficiency.

[0055] One end of the quick clamp 10 is connected to the extension rod 13, and the other end is connected to the sliding clamp 4. The quick clamp 10 is an existing tool on the market. The quick clamp produced by Dongguan Kemei Environmental Protection Equipment Co., Ltd. in this embodiment is used to convert the rotational torque of the extension rod 13 into power to move the sliding clamp 4.

[0056] The quick clamp 10, in conjunction with the long rod 13, enables the snap ring 15 to close easily, improving work efficiency. The quick clamp 10 provides power for the sliding slot 4 to slide in the groove, which not only improves the closing efficiency of the snap ring 15 and reduces operator fatigue, but also completely avoids the problem of uneven force caused by traditional manual operation, and its service life is more than 10 times that of traditional clamps.

[0057] Example 2: NMD model pressure sleeve installation fixture

[0058] This embodiment is based on Embodiment 1, see [link to Embodiment 1]. Figure 2 The addition of pad 14 is used to adjust the height of various product models. In this embodiment, NMD type pad 141 is used, which can make the retaining ring of the threaded sleeve 16 and the retaining ring of the outer conductor of the connector (mounted on the product) have the same height.

[0059] The pad 14 can adjust the height of various product models, reducing changeover adjustment time from the traditional 15 minutes to 2 minutes. Practical application shows that the pad 14 system improves tooling versatility by 300%, increases changeover efficiency by 10 times, and completely eliminates the cumulative error problem caused by traditional pad adjustments. After a 25Mrad radiation test, its mechanical properties still retain more than 95% of their initial values.

[0060] Example 3: SMA type pressure sleeve installation fixture

[0061] This embodiment is based on Embodiment 1, see [link to Embodiment 1]. Figure 3 According to the SMA model, the N-type sliding slot 41 is replaced with the SMA-type sliding slot 42, and the N-type fixed slot 61 is replaced with the SMA-type fixed slot 62. A pad 14 is added. In this embodiment, the SMA-type pad 142 is used, which can make the snap ring 15 of the screw sleeve 16 and the fixed position of the outer conductor of the connector consistent, achieving flexibility and versatility.

[0062] The workflow of the press-fit threaded sleeve tool is as follows: The operator first installs the corresponding model of the lower template 2 and pad plate 14 assembly on the lower mold base, and ensures the positioning accuracy by using the positioning pin 12. The snap ring 15 is placed between the fixed clamping position 6 and the sliding clamping position 4 guided by the slide plate 3. The operator rotates the extension rod 13 to make the quick clamp 10 integrated in the side plate 5 drive the sliding clamping position 4 to complete the precision closing.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. Supports multi-model press-fit screw sleeve tooling, characterized in that, The lower mold base (1) includes a lower mold base (1), a lower mold plate (2), a slide plate (3), a sliding slot (4), a side plate (5), a fixed slot (6), a baffle (7), a pressure plate (8), a pull rod (9), a quick clamp (10), an extension rod (13), a pad (14), a snap ring (15), and a screw sleeve (16). The lower mold base (1) is used to fix the lower mold plate (2) and the side plate (5) to the punch (11) by screws. The lower mold plate (2) is fixedly installed with the slide plate (3), the fixed slot (6), and the pressure plate (8). The screw sleeve tooling closes the snap ring (15), and the closed snap ring (15) is inserted into the groove of the screw sleeve (16). The product is pressed onto the screw sleeve (16) on the punch (11).

2. The tooling for supporting multiple types of press-fit threaded sleeves according to claim 1, characterized in that, It also includes a pad (14) for adjusting the height of various different models of products to achieve flexibility and universality. The flexible universal models include SMA type, N type, and NMD type. The lower template (2) and the slide plate (3) are precisely positioned by the positioning pin (12) to form an integral unit. The closing structure of the snap ring (15) and the pad (14) can be quickly replaced. The closing snap ring position is precisely positioned so that the snap ring (15) will not be closed repeatedly.

3. The tooling for supporting multiple types of press-fit threaded sleeves according to claim 2, characterized in that, The slide plate (3) is used to limit the sliding position (4) so ​​that the sliding position (4) does not deviate from the track. The pad (14) includes: NMD type pad (141) and SMA type pad (142).

4. The tooling for supporting multiple types of press-fit threaded sleeves according to claim 3, characterized in that, The sliding locking position (4) includes an N-type sliding locking position (41) and an SMA-type sliding locking position (42), and the fixed locking position (6) includes an N-type fixed locking position (61) and an SMA-type fixed locking position (62). The sliding locking position (4) and the fixed locking position (6) are combined into a circle to close the spring clip (15).

5. The tooling for supporting multiple types of press-fit threaded sleeves according to claim 3, characterized in that, The side plate (5) is mainly used to install and fix the quick clamp (10). One end of the quick clamp (10) is connected to the extension rod (13), and the other end is connected to the sliding slot (4). Its function is to convert the rotational torque of the extension rod (13) into power to move the sliding slot (4).

6. The tooling for supporting multiple types of press-fit threaded sleeves according to claim 3, characterized in that, The baffle (7) is used to block the product when assembling the screw sleeve (16).

7. The tooling for supporting multiple types of press-fit threaded sleeves according to claim 3, characterized in that, The pressure plate (8) blocks the sliding position (4) so ​​that the sliding position (4) does not disengage from the position inside the slide plate (3).

8. The tooling for supporting multiple types of press-fit threaded sleeves according to claim 3, characterized in that, The pull rod (9) hooks onto the sliding latch (4), allowing the sliding latch (4) to slide back and forth inside the slide plate (3).

9. The tooling for supporting multiple types of press-fit threaded sleeves according to claim 3, characterized in that, The quick clamp (10) provides power for the sliding slot (4) to slide in the groove, and the punch (11) presses the product assembly sleeve (16) on the mounting device.

10. The tooling for supporting multiple types of press-fit threaded sleeves according to claim 3, characterized in that, The extension rod (13) can easily close the snap ring (15).