An automatic riveting device for an optical fiber connector terminal and its usage method

Abstract

The present invention relates to the field of automatic riveting technology, specifically to an automatic riveting device for optical fiber connector terminals and a method for using the same, comprising: a support seat, and a lower mold and a fixed rod arranged on the support seat, the fixed rod is provided with a workbench, and the workbench is provided with a fixed plate; a lifting assembly is provided on the fixed plate, the lifting assembly includes a movable plate, and an upper mold is provided on the movable plate; a bidirectional driving mechanism is provided on the workbench and connected to the lifting assembly, the movable plate is provided with a riveting pulling mechanism connected to the bidirectional driving mechanism, the riveting pulling mechanism includes a symmetrically arranged card plate, and the bidirectional driving mechanism can control the card plate to perform a riveting extrusion action on the connector through the riveting pulling mechanism when the upper mold abuts against the lower mold, and the riveting strength is tested by providing a pulling force to the connector terminal after the riveting is completed.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic riveting, in particular to an automatic riveting device for optical fiber connector terminals and a use method thereof. Background Art

[0002] Fiber optic connectors typically consist of a pin, connector body, optical cable, and connection device. During the assembly process, to ensure a secure connection between the connector and the optical cable and prevent the cable from loosening or falling off during use, the cable's reinforcement member or internal protective sheath is riveted to the connector body.

[0003] When riveting the connector body and the internal protective sleeve, pressure is usually applied and the internal support mold is used to make the two produce coordinated plastic deformation until they fit the surface of the internal support mold.

[0004] During the riveting process, different specifications of connector bodies and internal protective sleeves require different pressures. Therefore, the riveting pressure can be adjusted by pneumatic or hydraulic means to ensure a firm riveting. However, due to the continuous adjustment of the riveting pressure, the pressure reference will continue to change, and the riveting may still not be in place, resulting in inconsistent riveting strength. After the riveting is completed, it is impossible to intuitively judge the defect of false rivets. This leads to the problem that the optical fiber may become loose between the connector body and the internal protective sleeve due to external force during subsequent use. Summary of the Invention

[0005] The object of the present invention is to provide an automatic riveting device for optical fiber connector terminals and a method for using the same, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An automatic riveting device for optical fiber connector terminals, comprising:

[0008] A support base, and a lower mold and a fixing rod arranged on the support base, a workbench arranged on the fixing rod, and a fixing plate arranged on the workbench;

[0009] Also includes:

[0010] A lifting assembly is arranged on the fixed plate, the lifting assembly includes a movable plate, and the movable plate is provided with an upper mold;

[0011] A bidirectional driving mechanism is arranged on the workbench and connected to the lifting assembly. A riveting pulling mechanism connected to the bidirectional driving mechanism is arranged on the movable plate. The riveting pulling mechanism includes symmetrically arranged card plates. The bidirectional driving mechanism can control the card plates to perform riveting extrusion action on the connector through the riveting pulling mechanism when the upper mold abuts against the lower mold.

[0012] As a further solution of the present invention: the lifting assembly includes a first cylinder arranged on the fixed plate, a push plate is provided at the telescopic end of the first cylinder, a support column is provided on the push plate for sliding connection with the movable plate, a fixing ring is provided at the end of the support column for abutting the movable plate, a first spring is sleeved on the support column, and the two ends of the first spring are respectively abutted against the push plate and the movable plate.

[0013] As a further solution of the present invention: the bidirectional drive mechanism includes a support rod arranged on the workbench, a spiral groove is provided on the circumferential outer wall of the support rod, a rotating sleeve is rotatably installed on the push plate and slides axially along the support rod, and the inner wall of the rotating sleeve is provided with a first limit block that slides in engagement with the spiral groove.

[0014] As a further solution of the present invention: the bidirectional driving mechanism further includes a hollow rod which slides axially along the rotating sleeve and is rotationally connected to the movable plate, and a rotating disk is provided on the hollow rod.

[0015] As a further embodiment of the present invention, the riveting pulling mechanism includes guide grooves formed on the side walls of the rotating disk and arranged symmetrically, the movable plate is provided with symmetrically arranged sliding grooves, a sliding block is slidably installed in the sliding groove, and a limiting column is provided on the side wall of the sliding block to slide and engage with the guide groove;

[0016] It also includes a translation component arranged on the sliding block and used for driving the card plate to move in the horizontal direction.

[0017] As a further solution of the present invention: the translation assembly includes a fixed sleeve arranged on the sliding block, a movable rod is slidably installed in the fixed sleeve, and a guide plate is provided at the end of the movable rod.

[0018] As a further solution of the present invention: the translation assembly also includes a support plate arranged on the guide plate, a guide rod and a second cylinder are provided on the support plate, a movable sleeve is slidably installed on the guide rod, and the movable sleeve and the second cylinder are fixedly connected to the clamping plate.

[0019] As a further solution of the present invention: a guide column is provided on the sliding block, a second spring is sleeved on the guide column, and two ends of the second spring are respectively in contact with the guide plate and the guide column.

[0020] As a further solution of the present invention: a second cylinder is provided on the guide plate, and a limit plate is provided at the telescopic end of the second cylinder, which is fixedly connected to the movable rod and can slide axially along the guide column, and the limit plate abuts against the fixed sleeve.

[0021] A method for using an automatic riveting device for an optical fiber connector terminal comprises the following steps:

[0022] Step 1: Place the connector part to be riveted on the lower mold;

[0023] Step 2: Under the action of the lifting assembly, the upper mold is driven to move toward the lower mold through the movable plate, and the movement of the bidirectional drive mechanism is controlled under the action of the lifting assembly;

[0024] Step 3: When the upper mold and the lower mold are in contact, the position of the movable plate no longer changes. Under the action of the bidirectional driving mechanism, the riveting pulling mechanism is controlled to move, thereby controlling the clamping plate to perform the riveting action on the connector component.

[0025] Step 4: After the riveting is completed, the lifting assembly controls the upper mold to reset, and under the action of the clamping plate, a simulated pulling force is provided to the connector component to test the riveting results.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The present application can automatically apply a simulated pulling force to the riveted product after the riveting is completed to test the riveting strength and ensure that the connector shell and the internal protective sleeve are firmly riveted. Specifically, the upper mold and the lower mold can be controlled to cooperate with each other through the lifting assembly to form a riveted internal support mold. The movement of the riveting pulling mechanism can be controlled by the two-way driving mechanism, and when the upper mold and the lower mold are abutted, the two clamping plates are controlled to move toward each other to perform the riveting action on the connector shell and the internal protective sleeve, ensuring that the connector shell and the internal protective sleeve produce coordinated plastic deformation until their contours achieve full surface fit with the upper mold and the lower mold. During the resetting process of the lifting assembly, the axial pulling force is provided to the connector shell through the cooperation of the two-way driving mechanism and the riveting pulling mechanism to test the riveting strength.

[0028] The connector housing and the internal protective sleeve can be riveted to each other through the telescopic action of the first cylinder. After the riveting is completed, the riveting strength test is automatically performed, thereby simplifying the subsequent required testing steps and optimizing the entire riveting process.

[0029] Through the cooperation of the guide groove and the limit column, it is possible to control the movement of the card plate in the direction of approaching each other when the upper mold and the lower mold abut against each other, so as to perform the riveting action on the connector shell and the internal protective cover. When the riveting is completed, the distance between the two card plates can be controlled to remain unchanged, so that during the resetting process of the upper mold, a pulling force is applied to the connector shell through the card plate, effectively identifying the false riveting defect, and automatically controlling the separation of the card plate and the connector shell after the inspection is completed to avoid the problem of damage to qualified parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The figure is a structural diagram of an embodiment of an automatic riveting device for optical fiber connector terminals.

[0031] Figure 2 This is a structural schematic diagram from another angle of an embodiment of an automatic riveting device for optical fiber connector terminals.

[0032] Figure 3 for Figure 2 A magnified schematic diagram of the structure at point A.

[0033] Figure 4 This is a schematic diagram of the connection relationship between a lifting assembly, part of a bidirectional drive mechanism, and part of a riveting pulling mechanism in an embodiment of an automatic riveting device for optical fiber connector terminals.

[0034] Figure 5 for Figure 4 Schematic diagram of the structure from another angle.

[0035] Figure 6 This is a schematic diagram of a partially half-section structure of an embodiment of an automatic riveting device for optical fiber connector terminals.

[0036] Figure 7 The figure is a structural diagram of a riveting pulling mechanism in one embodiment of an automatic riveting device for optical fiber connector terminals.

[0037] Figure 8 This is a schematic diagram of the exploded structure of part of the lifting assembly and part of the bidirectional drive mechanism in one embodiment of an automatic riveting device for optical fiber connector terminals.

[0038] Figure 9 This is a structural schematic diagram of a rotating disk and a riveting pulling mechanism in one embodiment of an automatic riveting device for optical fiber connector terminals.

[0039] Figure 10 for Figure 9 A magnified schematic diagram of the structure at point B.

[0040] Figure 11 This is a schematic diagram of the exploded structure of a riveting pulling mechanism in one embodiment of an automatic riveting device for optical fiber connector terminals.

[0041] In the figure: 1, support base; 2, lower mold; 3, fixed rod; 4, workbench; 5, fixed plate; 6, support rod; 601, spiral groove; 7, first cylinder; 8, push plate; 9, support column; 10, movable plate; 1001, slide; 11, first spring; 12, rotating sleeve; 1201, straight groove; 13, first limit block; 14, hollow rod; 15, second limit block; 16, rotating disk; 1601, first Annular groove; 1602, first inclined groove; 1603, second annular groove; 1604, second inclined groove; 17, upper mold; 18, sliding block; 19, limiting column; 20, fixed sleeve; 21, movable rod; 22, guide plate; 23, support plate; 24, guide rod; 25, movable sleeve; 26, clamping plate; 27, second cylinder; 28, third cylinder; 29, limiting plate; 30, guide column; 31, second spring. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0044] See also Figures 1 to 11 In an embodiment of the present invention, an automatic riveting device for an optical fiber connector terminal includes:

[0045] A support base 1, and a lower mold 2 and a fixing rod 3 arranged on the support base 1, a workbench 4 is arranged on the fixing rod 3, and a fixing plate 5 is arranged on the workbench 4;

[0046] Also includes:

[0047] A lifting assembly is provided on the fixed plate 5, the lifting assembly includes a movable plate 10, and an upper mold 17 is provided on the movable plate 10;

[0048] A bidirectional driving mechanism is arranged on the workbench 4 and connected to the lifting assembly. A riveting pulling mechanism connected to the bidirectional driving mechanism is provided on the movable plate 10. The riveting pulling mechanism includes a symmetrically arranged card plate 26. The bidirectional driving mechanism can control the card plate 26 to perform a riveting extrusion action on the connector through the riveting pulling mechanism when the upper mold 17 abuts against the lower mold 2.

[0049] Specifically, when riveting the connector terminals, the connector shell and the internal protective sleeve are usually riveted to each other. The inner wall size of the internal protective sleeve is equivalent to the rectangular column size of the upper mold 17 and the lower mold 2. The connector shell is also set in a rectangular column before riveting and can be fitted on the internal protective sleeve. Therefore, after the two are fitted together, they can be placed on the lower mold 2 and fixed to the internal protective sleeve by a pneumatic clamp (not shown in the figure). At this time, under the action of the lifting assembly, the upper mold 17 is controlled to move toward the lower mold 2 through the movable plate 10. At the same time, the lifting assembly also drives the two-way driving mechanism to move. When the upper mold 17 is inserted into the internal protective sleeve and abuts against the lower mold 2, the movable plate 10 no longer moves. At this time, the lifting assembly continues to control the movement of the two-way driving mechanism, thereby driving the riveting pulling mechanism to move, so that the two clamps 26 move in the direction of approaching each other. When the clamps 26 abut against the connector shell, Under the action of the extrusion pressure of the card plate 26, the connector shell and the internal protective sleeve are concave and deformed inward until they are fully fitted with the upper mold 17 and the lower mold 2. When the riveting is completed, under the action of the lifting assembly, the upper mold 17 is controlled to reset by the movable plate 10. At the same time, under the action of the two-way driving mechanism, the card plate 26 and the connector shell are always in a fit state through the riveting pulling mechanism to provide a certain pulling force to the connector shell, thereby testing the riveting strength of the connector shell and the internal protective sleeve. When the pulling force reaches a certain value, it means that the riveting strength meets the required requirements. Under the action of the two-way driving mechanism, the two card plates 26 are controlled by the riveting pulling mechanism to move away from each other until the card plates 26 are reset. Among them, the pneumatic clamp is set on the same horizontal plane as the lower mold 2, which is used to provide lateral clamping of the internal protective sleeve to ensure that the internal protective sleeve always remains in a fixed state when the connector shell is subjected to pulling force.

[0050] Preferably, by providing a pulling force after the riveting is completed, it is possible to timely detect whether the riveting strength of the connector shell and the internal protective sleeve meets the required requirements. At the same time, after the riveting strength test meets the required requirements, the automatic control card 26 is separated from the connector shell, which can prevent the problem of deformation and separation caused by external force during subsequent use due to low riveting strength, and ensure that the connector shell will not be damaged due to excessive pulling force.

[0051] See also Figure 1 、 Figure 2 、 Figure 4-Figure 6 The lifting assembly includes a first cylinder 7 arranged on the fixed plate 5, a push plate 8 is provided at the telescopic end of the first cylinder 7, a support column 9 is provided on the push plate 8 for sliding connection with the movable plate 10, and a fixing ring is provided at the end of the support column 9 for abutting against the movable plate 10, and a first spring 11 is sleeved on the support column 9, and the two ends of the first spring 11 are respectively abutted against the push plate 8 and the movable plate 10.

[0052] In detail, before riveting, the first spring 11 is in a compressed state, so that the distance between the movable plate 10 and the push plate 8 is the largest, and the movable plate 10 is in contact with the fixed ring. Under the action of the first cylinder 7, the push plate 8 and the movable plate 10 are controlled to be at the end of the stroke away from the lower mold 2. At this time, the upper mold 17 and the lower mold 2 are in a separated state. When it is necessary to rivet the connector shell and the internal protective sleeve, the first cylinder 7 works and drives the push plate 8 to move toward the lower mold 2, thereby controlling the synchronous movement of the movable plate 10 through the support column 9, so that the upper mold 17 moves toward the lower mold 2. When the upper mold 17 is in contact with the lower mold 2, the upper mold 17 and the lower mold 2 are combined with each other to form the internal support mold required for riveting, so as to ensure that subsequent riveting can proceed smoothly.

[0053] See also Figure 1 、 Figure 2 、 Figure 4-Figure 6 、 Figures 8-10 The bidirectional driving mechanism includes a support rod 6 arranged on the workbench 4, and a spiral groove 601 is opened on the outer wall of the support rod 6. A rotating sleeve 12 is rotatably installed on the push plate 8 and slides axially along the support rod 6. The inner wall of the rotating sleeve 12 is provided with a first limit block 13 that slides in engagement with the spiral groove 601. The bidirectional driving mechanism also includes a hollow rod 14 that slides axially along the rotating sleeve 12 and is rotatably connected to the movable plate 10, and a rotating disk 16 is provided on the hollow rod 14.

[0054] See also Figure 1-Figure 7 、 Figure 9 、 Figure 11The riveting pulling mechanism includes a guide groove formed on the side wall of the rotating disk 16 and symmetrically arranged, and a symmetrically arranged slide groove 1001 is opened on the movable plate 10, and a sliding block 18 is slidably installed in the slide groove 1001, and the side wall of the sliding block 18 is provided with a limit column 19 that slides and engages with the guide groove; it also includes a translation component arranged on the sliding block 18 for driving the card plate 26 to move in the horizontal direction, and the translation component includes a fixed sleeve 20 arranged on the sliding block 18, a movable rod 21 is slidably installed in the fixed sleeve 20, and a guide plate 22 is provided at the end of the movable rod 21. The translation component also includes a support plate 23 provided on the guide plate 22, a guide rod 24 and a second cylinder 27 are provided on the support plate 23, and a movable sleeve 25 is slidably installed on the guide rod 24, and the movable sleeve 25 and the second cylinder 27 are fixedly connected to the card plate 26.

[0055] A guide column 30 is provided on the sliding block 18, and a second spring 31 is sleeved on the guide column 30. The two ends of the second spring 31 are respectively in contact with the guide plate 22 and the guide column 30. A second cylinder 27 is provided on the guide plate 22. The telescopic end of the second cylinder 27 is provided with a limit plate 29 fixedly connected to the movable rod 21 and capable of axially sliding along the guide column 30. The limit plate 29 is in contact with the fixed sleeve 20.

[0056] See also Figure 9 、 Figure 10It should be noted that the guide groove can be divided into four sections, namely the first annular groove 1601, the first inclined groove 1602, the second annular groove 1603, and the second inclined groove 1604. The first annular groove 1601 and the second annular groove 1603 are arranged in an arc shape, and the center of the arc is coaxial with the rotation center position of the rotating disk 16. One end of the first inclined groove 1602 is connected to one end of the first annular groove 1601, and the other end is connected to the second annular groove 1603. One end of the second inclined groove 1604 is connected to one end of the second annular groove 1603, and the other end is connected to the first annular groove 1601. The rotating sleeve 12 is formed with a straight groove 1201 along its axial direction. The inner wall of the hollow rod 14 is provided with a second limit block 15 that is slidably engaged with the straight groove 1201. In the initial state, in the first cylinder 7, the push plate 8 and the rotating sleeve 12 are located at the end of the stroke away from the lower mold 2, and under the action of the first spring 11, the distance between the movable plate 10 and the push plate 8 is maximized. Therefore, the first limit block 13 is located at the end of the stroke of the spiral groove 601 away from the lower mold 2 side, the second limit block 15 is located at the end of the stroke of the straight groove 1201 toward the lower mold 2 side, and the limit column 19 is located at the end of the stroke of the first annular groove 1601 away from the first inclined groove 1602 side, so that the distance between the two sliding blocks 18 is maximized, so that the two clamping plates 26 are located at the end of the stroke in the direction away from each other, and the second spring 31 is in a compressed state to control the movable rod 21 to be located at the end of the stroke inserted into the fixed sleeve 20 through the guide plate 22, so that the distance between the clamping plate 26 and the sliding block 18 is minimized.

[0057] Among them, before riveting, the second cylinder 27 can be controlled to work according to the required riveting pressure to adjust the distance between the card plate 26 and the support plate 23 to ensure that the riveting pressure applied by the card plate 26 meets the required requirements. If the size of the connector shell and the internal protective sleeve changes, the riveting strength needs to be changed, and the corresponding specifications of the upper mold 17 and the lower mold 2 also need to be changed, and the position where the card plate 26 needs to apply pressure also needs to be changed. Therefore, when the size of the connector shell and the internal protective sleeve increases, the required riveting strength increases, and the corresponding specifications of the upper mold 17 and the lower mold 2 also increase, and the required distance between the card plate 26 and the sliding block 18 Increase, under the action of the third cylinder 28, the limit plate 29 is pushed to move. Since the limit plate 29 is in contact with the fixed sleeve 20, the third cylinder 28 will drive the guide plate 22 to move to control the movable rod 21 to move in the direction away from the fixed sleeve 20 and compress the second spring 31. The compression amount of the second spring 31 increases, which means that the pulling force that can be provided to the card plate 26 during the riveting strength test is increased, so as to adjust the pressure position applied by the card plate 26 according to the size of the connector shell and the internal protective sleeve, and adaptively adjust the pulling force provided by the card plate 26 during the riveting strength test after the riveting is completed.

[0058] When it is necessary to rivet the connector shell and the internal protective sleeve, under the action of the first cylinder 7, the push plate 8 and the rotating sleeve 12 are controlled to move along the axial direction of the support rod 6 and move toward the lower mold 2. Under the action of the first spring 11, the movable plate 10 moves synchronously with the push plate 8, and the rotating sleeve 12 also drives the first limit block 13 to move. Under the action of the first limit block 13 and the spiral groove 601, the rotating sleeve 12 rotates, thereby controlling the rotation of the hollow rod 14 through the straight groove 1201 and the second limit block 15 to control the rotation of the rotating disk 16, and the rotating disk 16 also drives the guide groove to move.

[0059] Subsequently, under the action of the guide groove, the limiting column 19 moves relative to the rotating disk 16 and slides along the first annular groove 1601. Since the sliding block 18 is not subjected to horizontal force, when the limiting column 19 moves to the connection position between the first annular groove 1601 and the second inclined groove 1604, the limiting column 19 will not disengage from the first annular groove 1601 and enter the second inclined groove 1604. As the rotating disk 16 continues to rotate, the limiting column 19 will cross the second inclined groove 1604 and continue to slide along the first annular groove 1601. When the upper mold 17 moves to the abutment position with the lower mold 2, the position of the movable plate 10 no longer changes. During this process, since the limiting column 19 always slides along the first annular groove 1601, the position of the sliding block 18 will not change, ensuring that the distance between the two clamping plates 26 remains unchanged.

[0060] At this time, the push plate 8 continues to move toward the lower mold 2 and compresses the first spring 11. The push plate 8 also drives the rotating sleeve 12 to continue to move, so that the size of the mutual fit between the hollow rod 14 and the rotating sleeve 12 increases, and under the action of the first limit block 13 and the spiral groove 601, the rotating sleeve 12 continues to rotate, so as to drive the rotating disk 16 to continue to rotate through the hollow rod 14, so that the limit column 19 continues to slide along the first annular groove 1601. When the limit column 19 moves to the position where the first annular groove 1601 is connected to the first inclined groove 1602, the limit column 19 will disengage from the first annular groove 1601 and enter the first inclined groove 1602, so that the two sliding blocks 18 move in the direction of approaching each other, and the sliding block 18 will also drive the fixed sleeve 20 and the movable rod 2 1 moves to drive the guide plate 22 and the support plate 23. Under the action of the support plate 23, the two clamping plates 26 are controlled by the second cylinder 27 to move toward each other. When the clamping plates 26 abut against the connector housing, the contact pressure is gradually applied to promote the coordinated plastic deformation of the connector housing and the internal protective sleeve until their contours are fully fitted with the upper mold 17 and the lower mold 2. The limiting post 19 just leaves the first oblique groove 1602 and enters the second annular groove 1603. The distance between the two clamping plates 26 reaches the minimum. The limiting post 19 continues to slide in the second annular groove 1603 to keep the position of the clamping plates 26 unchanged, so as to maintain the pressure applied to the connector housing and prevent the connector housing from rebounding due to elastic deformation, which may lead to riveting failure.

[0061] Furthermore, when the riveting is completed, under the action of the lifting assembly, the rotating sleeve 12 is controlled to move toward the initial position, and under the action of the first limit block 13 and the spiral groove 601, the rotating sleeve 12 is rotated toward the initial angle, so that the rotating disk 16 is rotated toward the initial angle. Therefore, the limit column 19 will slide relatively along the second annular groove 1603. When the limit column 19 moves to the position where the second annular groove 1603 is connected to the first inclined groove 1602, since the sliding block 18 is not subjected to the horizontal force at this time, the limit column 19 will cross the first inclined groove 1602 and continue to slide along the second annular groove 1603 to ensure that the distance between the two clamping plates 26 does not change. During this process, the first spring 11 is elastically released to control the upper mold 17 to always maintain a fit with the lower mold 2 through the movable plate 10 until the distance between the movable plate 10 and the push plate 8 reaches At maximum, the movable plate 10 will move synchronously with the push plate 8. Since the card plate 26 and the connector housing are in contact with each other, the height of the card plate 26 in the vertical direction will not change, and the guide column 30 moves synchronously with the sliding block 18. Therefore, the size of the fixed sleeve 20 and the movable rod 21 fitting together is reduced, and the compression amount of the second spring 31 gradually increases. Under the action of the card plate 26, a pulling force is provided to the connector housing to test the riveting strength. If the connector housing is not riveted in place, when subjected to the pulling force, the connector housing will be deformed and separated from the internal protective sleeve. If the connector housing is riveted in place, when the pulling force reaches the set value, it means that the riveting strength is qualified, and the limit column 19 just breaks away from the second annular groove 1603 and enters the second inclined groove 1604, so that the two sliding blocks 18 move in a direction away from each other to separate the card plate 26 from the connector housing.

[0062] Preferably, the connector housing and the internal protective sleeve can be riveted to each other by the telescopic action of the first cylinder 7, and the riveting strength test is automatically performed after the riveting is completed, thereby simplifying the subsequent required testing steps and optimizing the entire riveting process;

[0063] Through the cooperation of the guide groove and the limit column 19, when the upper mold 17 and the lower mold 2 abut against each other, the control card plate 26 can be moved in the direction of approaching each other to perform the riveting action on the connector shell and the internal protective sleeve. When the riveting is completed, the distance between the two card plates 26 can be controlled to remain unchanged, so that during the resetting process of the upper mold 17, a pulling force is applied to the connector shell through the card plate 26, effectively identifying the false riveting defect, and automatically controlling the card plate 26 to separate from the connector shell after the inspection is completed to avoid the problem of damage to qualified parts.

[0064] A method for using an automatic riveting device for an optical fiber connector terminal comprises the following steps:

[0065] Step 1: Put the connector part to be riveted on the lower mold 2;

[0066] Step 2: Under the action of the lifting assembly, the upper mold 17 is driven to move toward the lower mold 2 through the movable plate 10, and the movement of the bidirectional drive mechanism is controlled under the action of the lifting assembly;

[0067] Step 3: When the upper mold 17 abuts the lower mold 2, the position of the movable plate 10 no longer changes. Under the action of the bidirectional driving mechanism, the riveting pulling mechanism is controlled to move, thereby controlling the clamping plate 26 to perform the riveting action on the connector component.

[0068] Step 4: After the riveting is completed, the lifting assembly controls the upper mold 17 to reset, and under the action of the clamping plate 26, a simulated pulling force is provided to the connector component to test the riveting result.

[0069] 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 embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0070] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An automatic riveting device for optical fiber connector terminals, comprising: A support base, and a lower mold and a fixing rod arranged on the support base, a workbench arranged on the fixing rod, and a fixing plate arranged on the workbench; It is characterized by further comprising: A lifting assembly is arranged on the fixed plate, the lifting assembly includes a movable plate, and the movable plate is provided with an upper mold; A bidirectional driving mechanism is provided on the workbench and connected to the lifting assembly. A riveting pulling mechanism connected to the bidirectional driving mechanism is provided on the movable plate. The riveting pulling mechanism includes symmetrically arranged clamping plates. When the upper mold and the lower mold abut, the bidirectional driving mechanism can control the clamping plates to perform a riveting and extruding action on the connector through the riveting pulling mechanism. The lifting assembly includes a first cylinder provided on a fixed plate, a push plate provided at the telescopic end of the first cylinder, a support column provided on the push plate and slidably connected to the movable plate, a fixed ring provided at the end of the support column and abutting against the movable plate, a first spring sleeved on the support column, and two ends of the first spring abutting against the push plate and the movable plate respectively; The bidirectional drive mechanism includes a support rod arranged on the workbench, a spiral groove is provided on the outer wall of the support rod, a rotating sleeve is rotatably mounted on the push plate and slides along the axial direction of the support rod, and a first limit block is provided on the inner wall of the rotating sleeve and slides in engagement with the spiral groove; The bidirectional driving mechanism further comprises a hollow rod which slides axially along the rotating sleeve and is rotatably connected to the movable plate, wherein a rotating disk is provided on the hollow rod; The riveting pulling mechanism includes a guide groove formed on the side wall of the rotating disk and symmetrically arranged, a sliding groove is opened on the movable plate, a sliding block is slidably installed in the sliding groove, and a limiting column is provided on the side wall of the sliding block to slide and engage with the guide groove; It also includes a translation component provided on the sliding block for driving the card plate to move in the horizontal direction; The translation assembly comprises a fixed sleeve arranged on the sliding block, a movable rod is slidably installed in the fixed sleeve, and a guide plate is arranged at the end of the movable rod.

2. The automatic riveting device for optical fiber connector terminals according to claim 1, characterized in that: The translation assembly also includes a support plate arranged on the guide plate, a guide rod and a second cylinder are provided on the support plate, a movable sleeve is slidably mounted on the guide rod, and the movable sleeve and the second cylinder are fixedly connected to the clamping plate.

3. The automatic riveting device for optical fiber connector terminals according to claim 1, characterized in that: The sliding block is provided with a guide column, the guide column is sleeved with a second spring, and two ends of the second spring are respectively in contact with the guide plate and the guide column.

4. The automatic riveting device for optical fiber connector terminals according to claim 3, characterized in that: The guide plate is provided with a second cylinder, and the telescopic end of the second cylinder is provided with a limit plate fixedly connected to the movable rod and capable of sliding axially along the guide column, and the limit plate abuts against the fixed sleeve.

5. A method for using an automatic riveting device for an optical fiber connector terminal, using the automatic riveting device for an optical fiber connector terminal according to any one of claims 1 to 4, characterized in that: The following steps are involved: Step 1: Place the connector part to be riveted on the lower mold; Step 2: Under the action of the lifting assembly, the upper mold is driven to move toward the lower mold through the movable plate, and the movement of the bidirectional drive mechanism is controlled under the action of the lifting assembly; Step 3: When the upper mold and the lower mold are in contact, the position of the movable plate no longer changes. Under the action of the bidirectional driving mechanism, the riveting pulling mechanism is controlled to move, thereby controlling the clamping plate to perform the riveting action on the connector component. Step 4: After the riveting is completed, the lifting assembly controls the upper mold to reset, and under the action of the clamping plate, a simulated pulling force is provided to the connector component to test the riveting results.

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