Connector housing collar blind insertion assembly device

Abstract

This invention discloses a blind-fit assembly device for connector housing retaining rings, including a pressing assembly and a housing positioning assembly. The pressing assembly includes a gantry, a pressing shaft, a pressing cylinder, and a retaining claw assembly. The housing positioning assembly includes a base plate, a positioning cylinder, and a positioning sleeve. The gantry is mounted on the base plate, and the pressing shaft and the positioning sleeve are coaxially arranged. A locking assembly is provided between the pressing shaft and the pressing cylinder. When the locking assembly is locked, the pressing shaft drives the pressing cylinder to move downward. When the locking assembly is unlocked, the pressing shaft and the pressing cylinder can move relatively independently. The beneficial effects of this invention are: the locking assembly between the pressing shaft and the pressing cylinder, when the locking assembly is locked, the pressing shaft drives the pressing cylinder downward, completing the retaining ring retraction, and the balls of the retaining claw assembly overcome the elastic force of the top pressure spring, the balls pass over the protrusion, and the mounting plate enters the pressing cylinder, causing the elastic claw to move upward and disengage from the mounting sleeve. After the locking assembly is locked, the pressing shaft continues to move downward, so that the retaining ring is pressed into place in one step, greatly improving production efficiency.

Description

Technical Field

[0001] This invention relates to blind fitting assembly of retaining rings, and more particularly to a device for blind fitting assembly of retaining rings for connector housings. Background Technology

[0002] Under current technology, the assembly of the connector housing's retaining ring relies entirely on the operator's skill. The left hand holds the product housing, then the spring, retaining ring, and retaining ring are inserted sequentially. The right hand uses a pressure cylinder to press the retaining ring, and a shaped tool is used to compress the spring and retract the retaining ring, pressing it into the retaining ring groove at the limiting position, completing the product assembly. This technique requires the operator to work with both hands simultaneously and in coordination. The spring also provides a reaction force, increasing the difficulty. Furthermore, the left hand must retract the retaining ring at the appropriate position, making the operation challenging. A slight mistake can lead to repeated attempts. After pressing, the plating at the end of the finished product is scratched, exposing the substrate and resulting in scrap. The assembly process is also time-consuming (10 minutes per unit) and poses a risk of injury to the operator. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a connector housing retaining ring blind mating assembly device.

[0004] The objective of this invention is achieved through the following technical solution: A connector housing retainer ring blind mating assembly device, comprising a pressing assembly and a housing positioning assembly; the pressing assembly includes a gantry frame, a pressing shaft, a pressing cylinder, and a claw assembly; the claw assembly includes a mounting plate and a cover plate; a connecting cylinder is provided at the bottom of the mounting plate; the bottom of the connecting cylinder has several spaced slots arranged from bottom to top; at least two mounting grooves are evenly distributed on the same circumference at the top of the mounting plate; a limiting hole is provided on the outer side wall of the mounting groove, the limiting hole extends radially outward and penetrates the outer side wall of the mounting plate; a ball bearing and a pressure spring are installed in the mounting groove; one end of the pressure spring abuts against the inner wall of the mounting groove, and the other end of the pressure spring presses against the ball bearing, with part of the ball bearing protruding from the limiting hole; the cover plate is installed on the top of the mounting plate; a limiting cylinder is installed on the top of the crossbeam of the gantry frame, and a compression spring is installed in the limiting cylinder; the bottom of the pressing shaft passes through the pressing cylinder in sequence. The system comprises a claw assembly, a compression spring, and a crossbeam. A raised rib is formed on the inner bottom wall of the pressure cylinder, with the circumference diameter of the inner wall matching the outer diameter of the mounting plate. The lower wall of the raised rib has a guide slope. The outer diameter of the mounting plate is larger than the inner diameter of the limiting cylinder. The housing positioning assembly includes a base plate, a positioning cylinder, and a positioning sleeve. The positioning cylinder is mounted on the base plate. The bottom of the housing is fitted inside the positioning cylinder, and the top of the housing is fitted inside the positioning sleeve. The diameter of the central through hole of the positioning sleeve matches the diameter of the central through hole of the housing. A tapered hole is formed at the top of the positioning sleeve, with an opening diameter larger than the diameter of the retaining ring and a tail diameter smaller than the diameter of the retaining ring. The gantry frame is mounted on the base plate, and the pressure shaft and positioning sleeve are coaxially arranged. A locking assembly is provided between the pressure shaft and the pressure cylinder. When the locking assembly is locked, the pressure shaft drives the pressure cylinder to move downwards. When the locking assembly is unlocked, the pressure shaft and pressure cylinder can move relatively independently.

[0005] Optionally, the number of protrusions corresponds to the number of mounting slots of the claw assembly, and a clearance notch is formed between two adjacent protrusions to allow the ball to pass through.

[0006] Optionally, the locking assembly includes a limiting block and a relief groove. The top of the pressure cylinder has several relief grooves, which are spaced apart on the circumference. The pressure shaft has a limiting block corresponding to the relief groove. When the limiting block is located in the corresponding relief groove, the pressure cylinder and the pressure shaft are unlocked.

[0007] Optionally, a raised hemisphere is provided at the bottom of the pressure shaft, and the hemisphere and the top of the pressure shaft form a limiting step.

[0008] Optionally, the bottom of the central through hole of the positioning sleeve is a radially outward-expanding mounting hole, and the top of the housing is fitted into the mounting hole.

[0009] Optionally, a groove is provided on the base plate in the radial direction, and the bottom of the positioning cylinder is slidably fitted in the groove.

[0010] Optionally, a sliding limiter is axially installed at the bottom of the positioning cylinder, and a sliding hole matching the sliding limiter is opened at the bottom of the slide groove.

[0011] Optionally, the sliding limiter is a screw, and a receiving groove is provided at the bottom of the base plate. The head of the screw is located in the receiving groove, and the sliding hole matches the shank of the screw.

[0012] Optionally, a radially extending handle is mounted on the side wall of the positioning cylinder.

[0013] Optionally, the radial extension direction of the handle is consistent with the radial extension direction of the slide.

[0014] Optionally, a shock-absorbing pad is installed at the top of the inner cavity of the pressure cylinder.

[0015] The present invention has the following advantages:

[0016] 1. The connector housing retaining ring blind insertion assembly device of the present invention greatly reduces the difficulty of operation and fundamentally solves the risk of injury caused by the elastic potential energy of the product itself.

[0017] 2. During the assembly process, the base material and plating of the parts will not be damaged, thus improving the quality problem of scratching the base material and plating.

[0018] 3. The original tooling took about 10 minutes to press a retaining ring into place, while this device only takes about 15 seconds, which greatly improves efficiency.

[0019] 4. A locking assembly is installed between the pressure shaft and the pressure cylinder. When the pressure shaft moves downward, it drives the pressure cylinder downward, thereby completing the retraction of the retaining ring. This allows the retaining ring to be located in the center hole of the mounting sleeve. Then, the balls of the claw assembly overcome the elastic force of the top pressure spring, causing the balls to pass over the protrusion. Under the action of the compression spring, the mounting plate enters the pressure cylinder, causing the elastic claw to move upward and disengage from the mounting sleeve. This unlocks the connection between the pressure shaft and the pressure cylinder, and the pressure shaft continues to move downward, thus enabling the retaining ring to be press-fitted in one step, significantly improving production efficiency. Attached Figure Description

[0020] Figure 1 A schematic diagram of a connector housing retaining ring blind mating assembly device;

[0021] Figure 2 A cross-sectional schematic diagram of a connector housing retaining ring blind mating assembly device;

[0022] Figure 3 This is a schematic diagram of the downward pressure assembly;

[0023] Figure 4 This is a structural schematic diagram of the housing positioning assembly;

[0024] Figure 5This is a schematic diagram of the claw assembly.

[0025] Figure 6 This is a cross-sectional view of the chuck assembly;

[0026] Figure 7 This is a schematic diagram showing the installation of the ball bearing and the compression spring in the mounting groove.

[0027] Figure 8 This is a schematic diagram of the pressure cylinder structure;

[0028] Figure 9 This is a cross-sectional view of the positioning sleeve.

[0029] Figure 10 This is a structural schematic diagram of the base plate;

[0030] In the diagram, 1-pressure shaft, 2-pressure cylinder, 3-claw assembly, 4-limiting cylinder, 5-compression spring, 6-positioning sleeve, 7-positioning cylinder, 8-base plate, 9-handle, 10-slide groove, 11-sliding limit component, 12-crossbeam, 13-sliding hole, 14-protruding ridge, 15-avoidance notch, 16-guide slope, 17-anti-slip texture, 18-gantry frame, 19-limiting block, 31-mounting plate, 32-mounting groove, 33-top pressure spring, 34-ball bearing, 35-connecting cylinder, 36-elastic claw, 37-through hole, 38-cover plate, 51-clamping ring, 52-washer, 53-clamping groove, 54-shell, 61-conical hole, 62-mounting hole. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in this invention can be combined with each other.

[0034] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0035] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0036] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0037] like Figure 1 and Figure 2 As shown, a blind-fit assembly device for a connector housing 54 and a retaining ring 51 includes a pressing component and a housing positioning component. The housing positioning component is mainly used to install the housing 54, so that the position of the housing 54 can be kept stable during installation of the retaining ring 51. The pressing component first squeezes the retaining ring 51, causing the retaining ring 51 to retract inward, and then pushes the retaining ring 51 downward within the housing 54, and finally makes the retaining ring 51 lock into the retaining groove 53 of the housing 54. The specific details are described in detail with reference to the structure of the pressing component and the housing positioning component.

[0038] In this embodiment, as Figure 3 As shown, the pressing assembly includes a gantry frame 18, a pressure shaft 1, a pressure cylinder 2, and a claw assembly 3, as follows: Figure 6 , Figure 7 and Figure 8As shown, the claw assembly 3 includes a mounting plate 31 and a cover plate 38. A connecting cylinder 35 is provided at the bottom of the mounting plate 31. Preferably, the mounting plate 31 is a circular plate. The bottom of the connecting cylinder 35 has several spaced slots from bottom to top, thus forming an elastic claw 36 at the bottom of the connecting cylinder 35. Furthermore, the slots are evenly distributed on the same circumference. When the elastic claw 36 is subjected to a radially inward force, the elastic claw 36 will retract inward, and when the external force disappears, the elastic claw 36 can return to its original position. In this embodiment, at least two mounting grooves 32 are evenly distributed on the same circumference at the top of the mounting plate 31. Preferably, there are four mounting grooves 32, that is, the four mounting grooves 32 are arranged in a cross shape. A limiting hole is provided on the side wall of the outer side of the mounting groove 32. The limiting hole extends radially outward and penetrates the outer side wall of the mounting plate 31. A ball bearing 34 is installed in the mounting groove 32. A top pressure spring 33 is installed, with one end abutting against the inner wall of the mounting groove 32 and the other end pressing against the ball bearing 34. Part of the ball bearing 34 protrudes from the limiting hole. A cover plate 38 is installed on top of the mounting plate 31. Preferably, the cover plate 38 and the mounting plate 31 are locked together by locking screws. During installation, the cover plate 38 is opened, and then the top pressure spring 33 and the ball bearing 34 are installed in the mounting groove 32. The ball bearing 34 is pressed tightly against the limiting hole under the action of the top pressure spring 33. In this embodiment, the depth of the limiting hole is not deep. When the ball bearing 34 is pressed against the limiting hole, part of the ball bearing 34 protrudes from the limiting hole. However, when the ball bearing 34 is subjected to a radially inward force that can overcome the elastic force of the top pressure spring 33, the ball bearing 34 will retract inward, thus hiding the ball bearing 34 inside the mounting plate 31. After installation, the cover plate 38 and the mounting plate 31 are locked together.

[0039] In this embodiment, as Figure 1 and 2As shown, the gantry frame 18 mainly serves a supporting function. A limiting cylinder 4 is installed on the top of the crossbeam 12 of the gantry frame 18. A compression spring 5 is installed inside the limiting cylinder 4. Preferably, the limiting cylinder 4 and the crossbeam 12 are integrally formed. The bottom of the pressure shaft 1 passes through the pressure cylinder 2, the claw assembly 3, the compression spring 5 and the crossbeam 12 in sequence. A protruding rib 14 is provided on the inner side wall of the bottom of the pressure cylinder 2. The circumference diameter of the inner side wall of the protruding rib 14 matches the outer diameter of the mounting plate 31. The lower side wall of the protruding rib 14 has a guide slope 16. The outer diameter of the mounting plate 31 is larger than the inner diameter of the limiting cylinder 4.During installation, the compression spring 5 is first placed inside the limiting cylinder 4. When the compression spring 5 is subjected to an axial downward force, it is compressed. The limiting cylinder 4 also restricts the compression spring 5, ensuring the reliability of its compression. Then, the bottom of the pressure shaft 1 passes sequentially through the pressure cylinder 2, the claw assembly 3, the compression spring 5, and the crossbeam 12. That is, the pressure cylinder 2 has a central hole, the cover plate 38 and the mounting plate 31 also have central holes, and the crossbeam 12 also has a hole. These holes are all coaxially arranged. In this embodiment, a locking assembly is provided between the pressure shaft 1 and the pressure cylinder 2. When the locking assembly is tightened... When the pressure shaft 1 moves the pressure cylinder 2 downwards, the pressure shaft 1 and the pressure cylinder 2 can move relatively independently after the locking assembly is unlocked. Therefore, in the initial stage of use, the pressure shaft 1 and the pressure cylinder 2 are in a locked state. Applying downward pressure to the pressure shaft 1 causes the pressure shaft 1 to move the pressure cylinder 2 downwards, which in turn causes the claw assembly 3 to move downwards. At this time, the radial inward external force on the ball 34 is very small, so the position of the ball 34 is almost still. Therefore, the downward movement of the pressure cylinder 2 can drive the claw assembly 3 to move downwards. When the mounting plate 31 abuts against the bottom of the limiting cylinder 4, the compression spring 5 is at its maximum compression. The compression spring 5 will exert an axial force on the mounting plate 31. The force exerted on the roller 34 is such that when the mounting plate 31 abuts against the bottom of the limiting cylinder 4, as the pressure shaft 1 continues to press down, the ball 34 is subjected to a radially inward force, which can overcome the elastic force of the top pressure spring 33, thereby causing the ball 34 to move along the guide slope 16 of the protrusion 14. When the ball 34 enters the limiting hole, the claw assembly 3 moves upward rapidly under the action of the compression spring 5 and quickly moves to the top of the inner cavity of the pressure cylinder 2. The operator can judge by listening to the impact sound of the claw assembly 3 and the pressure cylinder 2. In this embodiment, a shock-absorbing pad is installed at the top of the inner cavity of the pressure cylinder 2. Preferably, the shock-absorbing pad is a rubber pad, which can ensure that the ball 34 is in a radially inward force and can overcome the elastic force of the top pressure spring 33. The impact between the claw assembly 3 and the pressure cylinder 2 does not cause damage. Therefore, after the impact, the first stage of the downward movement of the lower pressure shaft 1 is completed. At this time, the retaining ring 51 retracts inward, and then the pressure shaft 1 is unlocked from the pressure cylinder 2. The pressure shaft 1 can then continue to move downward. As the pressure shaft 1 continues to move downward, it pushes the retaining ring 51 downward. When the retaining ring 51 moves to the retaining groove 53 of the housing 54, it is locked in the retaining groove 53 under the action of its elastic force, thus completing the assembly of the retaining ring 51 and the housing 54. Whether the retaining ring 51 is locked in the retaining groove 53 can be determined by the impact sound of the retaining ring 51 striking the retaining groove 53.

[0040] In this embodiment, as Figure 1 and Figure 2 As shown, the housing positioning assembly includes a base plate 8, a positioning cylinder 7, and a positioning sleeve 6. The positioning cylinder 7 is mounted on the base plate 8. The bottom of the housing 54 is fitted inside the positioning cylinder 7, and the top of the housing 54 is fitted inside the positioning sleeve. The diameter of the central through hole of the positioning sleeve 6 matches the diameter of the central through hole of the housing 54. Figure 9 As shown, the top of the positioning sleeve 6 is provided with a tapered hole 61. The opening diameter of the tapered hole 61 is larger than the diameter of the retaining ring 51, and the tail diameter of the tapered hole 61 is smaller than the diameter of the retaining ring 51. The gantry frame 18 is installed on the base plate 8, and the pressure shaft 1 is coaxially arranged with the positioning sleeve 6. During installation, after the housing positioning assembly and the pressing assembly are installed, the spring and washer 52 are inserted into the positioning sleeve 6 in sequence, and then the retaining ring 51 is placed into the tapered hole 61. Then the pressing assembly moves down and locks the retaining ring 51 into the retaining groove 53.

[0041] In this embodiment, the number of protrusions 14 corresponds to the number of mounting slots 32 of the claw assembly 3, and a clearance notch 15 is formed between two adjacent protrusions 14 to allow the ball 34 to pass through. Preferably, there are four mounting slots 32, so there are also four protrusions 14. When the ball 34 passes through the guide ramp 16 and enters the inner cavity of the pressure cylinder 2, the pressure cylinder 2 is rotated so that the ball 34 is aligned with the clearance notch 15, thereby removing the mounting plate 31 from the pressure cylinder 2.

[0042] In this embodiment, as Figure 1 and Figure 3 As shown, the locking assembly includes a limiting block 19 and a relief groove. The top of the pressure cylinder 2 is provided with several relief grooves, which are spaced apart on the circumference. The pressure shaft 1 is provided with a limiting block 19 corresponding to the relief groove. When the limiting block 19 is located in the corresponding relief groove, the pressure cylinder 2 is unlocked from the pressure shaft 1. That is, when the limiting block 19 is misaligned with the relief groove, when the pressure shaft 1 moves downward, the limiting block 19 abuts against the top of the pressure cylinder 2, thereby driving the pressure cylinder 2 to move downward. When the limiting block 19 is aligned with the relief groove, the limiting block 19 can pass through the relief groove. At this time, the pressure shaft 1 can continue to move downward, while the pressure cylinder 2 will not move downward with the pressure shaft 1. In this embodiment, in order to facilitate the unlocking of the locking assembly, anti-slip texture 17 is provided on the outer wall of the pressure cylinder 2. Therefore, the operator can easily rotate the pressure cylinder 2 to make the limiting block 19 aligned with the relief groove.

[0043] In this embodiment, as Figure 2 As shown, a protruding hemisphere is provided at the bottom of the pressure shaft 1. The hemisphere and the top of the pressure shaft 1 form a limiting step. Preferably, the diameter of the hemisphere is larger than the diameter of the inner ring of the washer 52. Therefore, when the pressure shaft 1 moves downward, after the hemisphere abuts against the washer 52, it will drive the washer 52 downward, thereby compressing the spring. In addition, the pressure shaft 1 will also drive the retaining ring 51 downward during the downward movement. The retaining ring 51 and the washer 52 do not contact each other during the initial downward movement. After the retaining ring 51 enters the retaining groove 53, after the pressure shaft 1 moves upward, the washer 52 moves upward under the action of the elastic restoring force of the spring and abuts against the retaining ring 51.

[0044] In this embodiment, as Figure 9As shown, the bottom of the central through hole of the positioning sleeve 6 is a radially outward-expanding mounting hole 62. The top of the housing 54 is fitted into the mounting hole 62, which facilitates the assembly of the housing 54 and the positioning sleeve 6. Moreover, the coaxiality of the housing 54 and the positioning sleeve 6 can be guaranteed through the fit between the housing 54 and the mounting hole 62.

[0045] In this embodiment, due to the presence of the gantry frame 18, and because the mounting sleeve and mounting cylinder are located below the crossbeam 12 when the retaining ring 51 is installed, the installation of the housing 54, mounting sleeve, mounting cylinder, retaining ring 51, washer 52, and spring is inconvenient. Therefore, in this embodiment, as... Figure 10 As shown, a groove 10 is provided on the base plate 8 in the radial direction. The bottom of the positioning cylinder 7 is slidably fitted in the groove 10. The positioning cylinder 7 can slide in the groove 10, thereby offsetting the position of the positioning cylinder 7 from that of the gantry frame 18, which facilitates the assembly of various parts. Furthermore, in order to improve the straightness of the movement of the positioning cylinder 7 and to ensure the coaxiality of the positioning cylinder 7 and the pressure shaft 1, a sliding limiter 11 is axially installed at the bottom of the positioning cylinder 7. A sliding hole 13 matching the sliding limiter 11 is provided at the bottom of the groove 10. Through the cooperation of the sliding limiter 11 and the sliding hole 13, the positioning cylinder 7 can only move in a straight line. Moreover, when the sliding limiter 11 is in contact with the side wall of the sliding hole 13 below the crossbeam 12, the positioning cylinder 7 is just coaxial with the pressure shaft 1, which makes the use of the housing positioning assembly extremely convenient.

[0046] In this embodiment, preferably, the sliding limiting member 11 is a screw. The bottom of the base plate 8 is provided with a receiving groove. The head of the screw is located in the receiving groove, and the sliding hole 13 matches the shank of the screw. When the screw is installed, the head of the screw should be as close as possible to the bottom of the receiving groove, but the head of the screw should not be in contact with the bottom of the receiving groove. This ensures that the positioning cylinder 7 can move while always moving under the restriction of the sliding groove 10.

[0047] In this embodiment, as Figure 1 As shown, a radially extending handle 9 is installed on the side wall of the positioning cylinder 7. The radial extension direction of the handle 9 is consistent with the radial extension direction of the slide groove. By pushing and pulling the handle 9, the positioning cylinder 7 can move within the slide groove 10, thus making the positioning cylinder 7 easy to move.

[0048] The working process of this invention is as follows: First, assemble the housing positioning assembly and the pressing assembly. Then, insert the spring and washer 52 into the positioning sleeve 6 in sequence. Next, insert the retaining ring 51 into the tapered hole 61 and apply downward pressure to the pressure shaft 1. The pressure shaft 1 then drives the pressure cylinder 2 to move downward, thereby driving the claw assembly 3 to move downward. At this time, the radial inward external force on the ball 34 is very small, so the position of the ball 34 is almost still. Therefore, the downward movement of the pressure cylinder 2 can drive the claw assembly 3 to move downward. During the downward movement of the claw assembly 3, the retaining ring 51 is pushed downward. When the retaining ring 51 moves downward, it contracts inward under the action of the tapered hole 61, thereby generating an elastic restoring force. When the retaining ring 51 enters the center hole of the mounting sleeve, the mounting plate 31 then... The bottom of the limiting cylinder 4 abuts against the roller. Furthermore, during the downward movement of the elastic claw 36, due to the presence of the tapered hole 61, the elastic claw 36 will also contract inward. In use, to prevent the elastic claw 36 from gripping the pressure shaft 1, the wall thickness of the elastic claw 36 can be made thinner, but its structural strength will be affected. Therefore, preferably, an upward slope is provided on the inner wall of the elastic claw 36, ensuring the structural strength of the elastic claw 36 while preventing it from gripping the pressure shaft 1. When the mounting plate 31 abuts against the bottom of the limiting cylinder 4, the compression spring 5 is at its maximum compression. The compression spring 5 will exert an axial upward force on the mounting plate 31. Moreover, when the mounting plate 31 abuts against the bottom of the limiting cylinder 4, as the pressure shaft 1 continues to press down, the ball 34 is subjected to radial force. The inward force overcomes the elasticity of the top spring 33, causing the ball 34 to move along the guide slope 16 of the protrusion 14. After the ball 34 enters the limiting hole, the claw assembly 3 moves upward rapidly under the action of the compression spring 5 and quickly moves to the top of the inner cavity of the pressure cylinder 2. The operator can judge by listening to the impact sound of the claw assembly 3 and the pressure cylinder 2. After the claw assembly 3 and the pressure cylinder 2 collide, the first stage of the downward movement of the lower pressure shaft 1 is completed. At this time, the retaining ring 51 retracts inward and enters the center hole of the mounting sleeve. Then the pressure shaft 1 and the pressure cylinder 2 are unlocked. Then the pressure shaft 1 continues to move downward. The hemisphere first contacts the washer 52 and then pushes the washer 52 downward. As the pressure shaft 1 continues to move downward, the pressure shaft... The limiting step on 1 pushes the retaining ring 51 downward. When the retaining ring 51 moves to the retaining groove 53 position of the housing 54, the retaining ring 51 is locked in the retaining groove 53 under the action of its elastic force, thereby completing the assembly of the retaining ring 51 and the housing 54. Whether the retaining ring 51 is locked in the retaining groove 53 can be determined by the impact sound of the retaining ring 51 and the retaining groove 53. Then the pressure shaft 1 moves upward, and the washer 52 is pressed against the washer 52 under the action of the spring. In this embodiment, the washer 52 has a constriction and a tapered surface. When the washer 52 abuts against the retaining ring 51, the constriction of the washer 52 is located inside the retaining ring 51, and the retaining ring 51 is fitted on the tapered surface. That is to say, when the washer 52 is locked in the retaining groove 53, at this time, the inner diameter of the washer 52 is smaller than the diameter of the central hole of the housing 54.

[0049] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A connector housing retaining ring blind mating assembly device, characterized in that: Includes a pressure-down assembly and a housing positioning assembly; The pressing assembly includes a gantry frame, a pressure shaft, a pressure cylinder, and a claw assembly. The claw assembly includes a mounting plate and a cover plate. A connecting cylinder is located at the bottom of the mounting plate, and the bottom of the connecting cylinder has several spaced slots arranged from bottom to top. At least two mounting slots evenly distributed on the same circumference are located at the top of the mounting plate. A limiting hole is formed on the outer sidewall of each mounting slot, extending radially outward and penetrating the outer sidewall of the mounting plate. A ball bearing and a top-pressure spring are installed inside the mounting slot. One end of the top-pressure spring abuts against the inner wall of the mounting slot. The other end presses against the ball, and part of the ball protrudes from the limiting hole. The cover plate is installed on the top of the mounting plate. A limiting cylinder is installed on the top of the crossbeam of the gantry frame. A compression spring is installed inside the limiting cylinder. The compression spring is fitted on the outside of the connecting cylinder. The bottom of the pressure shaft passes through the pressure cylinder, the claw assembly, the compression spring, and the crossbeam in sequence. A protruding ridge is provided on the inner side wall of the bottom of the pressure cylinder. The circumference diameter of the inner side wall of the protruding ridge matches the outer diameter of the mounting plate. The lower side wall of the protruding ridge has a guide slope. The outer diameter of the mounting plate is larger than the inner diameter of the limiting cylinder. The housing positioning assembly includes a base plate, a positioning cylinder, and a positioning sleeve. The positioning cylinder is installed on the base plate. The bottom of the housing is fitted inside the positioning cylinder, and the top of the housing is fitted inside the positioning sleeve. The diameter of the central through hole of the positioning sleeve matches the diameter of the central through hole of the housing. A tapered hole is provided at the top of the positioning sleeve. The opening diameter of the tapered hole is larger than the diameter of the retaining ring, and the tail diameter of the tapered hole is smaller than the diameter of the retaining ring. The gantry frame is mounted on the base plate, and the pressure shaft is coaxially arranged with the positioning sleeve; A locking assembly is provided between the pressure shaft and the pressure cylinder. When the locking assembly is locked, the pressure shaft drives the pressure cylinder to move downward. When the locking assembly is unlocked, the pressure shaft and the pressure cylinder can move relatively independently.

2. The connector housing retaining ring blind mating assembly device according to claim 1, characterized in that: The number of the protruding ridges corresponds to the number of the mounting slots of the claw assembly, and a clearance notch is formed between two adjacent protruding ridges to allow the ball to pass through.

3. The connector housing retaining ring blind mating assembly device according to claim 2, characterized in that: The locking assembly includes a limiting block and a relief groove. The top of the pressure cylinder has several relief grooves, which are spaced apart on the circumference. The pressure shaft has a limiting block corresponding to the relief groove. When the limiting block is located in the corresponding relief groove, the pressure cylinder is unlocked from the pressure shaft.

4. The connector housing retaining ring blind mating assembly device according to claim 1, characterized in that: The bottom of the pressure shaft is provided with a protruding hemisphere, which forms a limiting step with the top of the pressure shaft.

5. A connector housing retaining ring blind mating assembly device according to any one of claims 1 to 4, characterized in that: The bottom of the central through hole of the positioning sleeve is a radially outward-expanding mounting hole, and the top of the housing is fitted into the mounting hole.

6. A connector housing retaining ring blind mating assembly device according to any one of claims 1 to 4, characterized in that: A groove is formed on the base plate in the radial direction, and the bottom of the positioning cylinder is slidably fitted in the groove.

7. The connector housing retaining ring blind mating assembly device according to claim 6, characterized in that: The bottom of the positioning cylinder is axially mounted with a sliding limiting component, and the bottom of the sliding groove is provided with a sliding hole that matches the sliding limiting component.

8. The connector housing retaining ring blind mating assembly device according to claim 7, characterized in that: The sliding limiting component is a screw, and the bottom of the base plate has a receiving groove. The head of the screw is located in the receiving groove, and the sliding hole matches the shank of the screw.

9. A connector housing retaining ring blind mating assembly device according to claim 8, characterized in that: A handle extending radially is installed on the side wall of the positioning cylinder, and the radial extension direction of the handle is consistent with the radial extension direction of the slide groove.

10. A connector housing retaining ring blind mating assembly device according to claim 1, characterized in that: A shock-absorbing pad is installed at the top of the inner cavity of the pressure cylinder.

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