Pin press fitting device

Abstract

A PIN needle press-fitting device comprises a press structure, which is slidingly installed on a seat body of the device and slides in a first direction; a driving structure, which is in transmission connection with the press structure and is used to drive the press structure to slide in the first direction; a positioning seat, which is fixedly installed on the seat body and is used to position a connector shell so that the axial direction of a mounting hole of the PIN needle to be mounted on the connector shell is consistent with the first direction; and a guide seat, which is provided with a guide hole matched with the outer diameter of the PIN needle; wherein, after the guide seat is assembled with the connector shell, the guide seat is located between the positioning seat and the press structure, the guide hole is coaxial with the mounting hole, one end of the PIN needle is inserted into the guide hole, the other end of the PIN needle is located outside the guide seat, the driving structure drives the press structure to move and then applies pressure to the PIN needle, the PIN needle is driven to move into the mounting hole, and the PIN needle is press-fitted in the mounting hole, so that the assembled PIN needle is prevented from being inclined and the surface of the PIN needle is prevented from being damaged, and the assembly quality of the connector is improved.

Description

Technical Field

[0001] This utility model relates to the field of PIN assembly technology, and in particular to a PIN pressing device. Background Technology

[0002] Connectors, also called plugs, are used to connect and transmit current or signals in electronic devices. A connector consists of a housing and pins. The housing is typically injection molded and has mounting holes for the pins. During connector assembly, the pin tip is usually placed manually into the mounting hole, and then manually tapped with a tool to press the pin into the mounting hole, ensuring a tight fit between the pin and the hole.

[0003] During the installation of the aforementioned pins, pin tilting and surface damage frequently occur, leading to unstable connector assembly quality. Utility Model Content

[0004] In response to the shortcomings of the existing production technology, the applicant provides a PIN pin pressing device to avoid PIN pin tilting and surface damage after assembly, thereby improving the assembly quality of the connector.

[0005] The technical solution adopted in this utility model is as follows: A PIN pin press-fit device, comprising, A ballast structure is slidably mounted on the base of the device, and the sliding direction of the ballast structure is a first direction; A drive structure is connected to the ballast structure in a transmission manner and is used to drive the ballast structure to slide along a first direction; The positioning seat is fixedly installed on the base body and is used to position and place the connector housing so that the axial direction of the mounting hole of the PIN pin to be installed on the connector housing is consistent with the first direction. The guide seat is provided with a guide hole, which matches the outer diameter of the PIN pin; In this process, after the guide seat is assembled with the connector housing, the guide seat is located between the positioning seat and the ballast structure. The guide hole and the mounting hole are coaxial. One end of the PIN pin is inserted into the guide hole, and the other end of the PIN pin is located outside the guide seat. The driving structure drives the ballast structure to move and contact the PIN pin, and then applies pressure to the PIN pin, driving the PIN pin to move into the mounting hole and pressing the PIN pin into the mounting hole.

[0006] As a further improvement to the above technical solution: The ballast structure includes a ballast body fixedly connected to the moving end of the drive structure. The ballast body is slidably mounted on the base. The sliding direction of the ballast body is a first direction. A pressure head corresponding to the PIN pin is fixedly mounted on the ballast body. The pressure head is used to contact the PIN pin and apply pressure to the PIN pin.

[0007] The ballast body is provided with a through hole, the axial direction of which is consistent with the first direction. The device also includes an auxiliary clamp, which comprises: A guide post is inserted into the through hole and slides in the through hole; A claw assembly is fixed to one end of the guide post. The claw assembly is located between the ballast body and the guide seat. The claw assembly is used for detachable connection with the guide seat. The first elastic element has one end connected to the ballast body and the other end connected to the claw assembly; A limiting member is fixed to the other end of the guide post and located on the side of the ballast body away from the claw assembly, so that the first elastic member is in a compressed state. During the movement of the pressure head toward the PIN needle, before contact with the PIN needle, the claw assembly contacts and is detachably connected to the guide seat. The claw assembly is limited by the guide seat. During the process of the pressure head contacting and moving with the PIN needle, the first elastic element is compressed. As the pressure head moves away from the PIN pin, the first elastic element recovers, the limiting element contacts the ballast body, and the claw assembly and guide seat move away from the connector housing along the first direction.

[0008] The structure of the claw assembly includes: The fixture base plate is fixedly connected to the guide post; A pair of limiting portions are fixedly disposed on the fixture base plate at intervals along a second direction, the second direction being perpendicular to the first direction; A pair of L-shaped hooks are located between two limiting parts, spaced apart and opposite to each other along the second direction. Each L-shaped hook is hinged to the clamp base plate. The L-shaped hook is provided with a first inclined surface, and the guide seat is provided with a second inclined surface corresponding to the first inclined surface. The second elastic element is disposed between the adjacent limiting part and the L-shaped hook, so that the two L-shaped hooks have a tendency to swing relative to each other; During the process of the claw assembly moving toward the guide seat and contacting the guide seat, the first inclined surface and the second inclined surface contact each other, driving the L-shaped hooks to swing away from each other until the hook part of the L-shaped hook passes the second inclined surface, after which the two L-shaped hooks swing relative to each other, limiting the guide seat between the L-shaped hook and the clamp base plate along the first direction.

[0009] The positioning seat includes: The base, fixed to the seat body, limits the connector housing from one side of the connector housing in the first direction, and is used to bear the pressure applied to the connector housing by the ballast structure; A positioning structure is provided on the base, and the positioning structure matches the connector housing structure to limit the connector housing from a direction perpendicular to the first direction; Multiple stop arms are rotatably mounted on the base. When the end of the stop arm contacts the connector housing, it limits the connector housing from the other side of the connector housing in the first direction.

[0010] The guide seat includes a block-shaped body, on which a first positioning hole is provided, and on which a first positioning pin is provided corresponding to the first positioning hole. The first positioning hole and the first positioning pin are fitted together so that the guide hole and the mounting hole are coaxial.

[0011] The ballast structure has a second positioning pin, and the positioning seat has a second positioning hole corresponding to the second positioning pin; The base is provided with a positioning clamp for detachably connecting the positioning seat to the base and aligning the second positioning pin and the second positioning hole.

[0012] The drive structure is a push-pull quick elbow clamp, and the end of the moving rod of the quick elbow clamp is fixedly connected to the ballast structure.

[0013] The device further includes a limiting structure, which includes a limiting head fixedly connected to the ballast structure and a first contact portion fixedly installed on the base. When the limiting head contacts the first contact portion, the ballast structure stops moving toward the connector housing.

[0014] The limit head is a differential head.

[0015] The beneficial effects of this utility model are as follows: This utility model has a compact and reasonable structure and is easy to operate. By setting a pressure structure that moves along the first direction and a positioning seat that makes the axial direction of the mounting hole on the connector housing consistent with the first direction, the direction of the pressing force is ensured to be along the axial direction of the mounting hole. Combined with the guide hole on the matching guide seat that is coaxial with the mounting hole, the PIN pin is guided during the movement, which further ensures that the PIN pin moves along the first direction during the movement, avoids the PIN pin tilting and surface damage after assembly, and improves the assembly quality of the connector.

[0016] This utility model also has the following advantages: (1) Set an independent pressure head to contact the PIN pin, so that the pressure structure can avoid other parts of the connector housing. It can also be designed independently according to the number and length of the PIN pin, so that the same stroke drive structure can be used to drive multiple PIN pins for pressing.

[0017] (2) By sliding the through hole and the guide post, the maximum distance between the claw assembly and the ballast body is limited by the limiting component. Combined with the first elastic component, the elastic connection between the ballast body and the claw assembly is realized. When the claw assembly contacts the guide seat, the pressure of the ballast body on the guide seat is unloaded, and the claw assembly is connected to the guide seat. After the PIN pin is pressed, the ballast structure is moved away from the connector housing, so that the guide seat is simultaneously separated from the connector housing and the PIN pin.

[0018] (3) The claw assembly is designed as an L-shaped hook and guide seat engaging connection structure. An inclined surface is set on the L-shaped hook and the guide seat to convert the movement of the claw assembly and the guide seat along the first direction into the swing of the L-shaped hook. The L-shaped hook can be opened during the contact movement of the claw assembly and the guide seat. The L-shaped hook is reset by using a second elastic element, so that the auxiliary clamp can be automatically and detachably connected to the guide seat during the movement along the first direction, thereby improving the ease of operation of the device.

[0019] (4) A positioning structure and a stop arm are set on the positioning seat to limit the connector housing from multiple directions, ensuring that the mounting hole and the guide hole of the connector housing are coaxial. After the PIN pin is crimped, the stop guide seat moves away from the PIN pin along with the pressure structure to prevent the connector housing from moving with the guide seat, reducing the operator's extra operation of separating the guide seat and the PIN pin, and improving the convenience of operation.

[0020] (5) The second positioning pin and the second positioning hole are respectively set on the ballast structure and the positioning seat to be inserted during the pressing process. They can not only serve as the positioning structure during the device debugging process, but also as the detection component during the device use process, so as to ensure the accuracy of the positioning seat position and thus ensure the pressing quality.

[0021] (6) The push-pull type quick elbow clamp is used as the driving structure. The manual drive handle swings to drive the moving rod to move. The operation is simple and the device cost is low.

[0022] (7) A limiting head and a first contact part are provided on the ballast structure and the base to limit the displacement of the ballast structure relative to the connector housing, so as to ensure that the installation height of the PIN pin is consistent each time the PIN pin is pressed, thereby improving the assembly quality of the connector.

[0023] (8) Using a micrometer head as a limit head can finely adjust the pressing depth of the PIN pin and ensure the pressing quality of the PIN pin. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model (after assembling the guide seat and connector housing).

[0025] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0026] Figure 3 for Figure 1 Exploded view of the local structure in the state.

[0027] Figure 4 This is a schematic diagram of the positioning seat and positioning clamp of this utility model.

[0028] Figure 5 This is a schematic diagram of the structure of the guide seat, PIN pin and connector housing of this utility model.

[0029] Figure 6 This is a schematic diagram of the PIN pin pressing process of this utility model. Figure 1 (When the claw assembly and guide seat are connected).

[0030] Figure 7 for Figure 6 Partial section view in state Figure 1 .

[0031] Figure 8 for Figure 6 Partial section view in state Figure 2 .

[0032] Figure 9 This is an exploded view of the structure of the auxiliary clamp of this utility model.

[0033] Figure 10 This is a schematic diagram of the PIN pin pressing process of this utility model. Figure 2 (After the PIN needle and the pressure head come into contact).

[0034] Figure 11 for Figure 10 A partial sectional view of the current state.

[0035] Figure 12 This is a schematic diagram showing the state after the guide seat and positioning seat are separated after the PIN pins are pressed into place according to this utility model.

[0036] in: 1. Driving structure; 2. Ballast structure; 21. Ballast body; 22. Pressure head; 23. Second locating pin; 3. Cover; 4. Auxiliary clamp; 41. First elastic element; 42. Guide post; 421. Limiting element; 43. Claw assembly; 431. L-shaped hook; 432. Second elastic element; 433. Limiting part; 434. Clamp base plate; 435. First inclined surface; 5. Guide seat; 51. Guide hole; 52. First positioning hole; 53. Block body; 54. Second inclined surface; 6. Positioning seat; 61. Base; 62. Stop arm; 621. End; 63. Second positioning hole; 64. First positioning pin; 65. Positioning structure; 7. Base; 71. Positioning clamp; 711. U-shaped limiting frame; 712. Bolt; 713. Bolt hole; 72. Support plate; 81. Pin; 82. Connector housing; 83. Mounting hole; 91. Limit head; 92. First contact part; 93. Buffer; 94. Second contact part. Detailed Implementation

[0037] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0038] Example 1: like Figures 1-3 As shown, the PIN pin pressing device of this embodiment includes a pressing structure 2, a driving structure 1, a positioning seat 6, and a guide seat 5.

[0039] Ballast structure 2 is slidably mounted on the base 7 of the device, and the sliding direction of ballast structure 2 is the first direction; The drive structure 1 is connected to the ballast structure 2 in a transmission manner, and is used to drive the ballast structure 2 to slide along the first direction; The positioning seat 6 is fixedly installed on the seat body 7 and is used to position and place the connector housing 82 so that the axial direction of the mounting hole 83 of the PIN pin 81 to be installed on the connector housing 82 is consistent with the first direction. The guide seat 5 is provided with a guide hole 51, which matches the outer diameter of the PIN pin 81; After the guide seat 5 is assembled with the connector housing 82, the guide seat 5 is located between the positioning seat 6 and the ballast structure 2. The guide hole 51 is coaxial with the mounting hole 83. One end of the PIN pin 81 is inserted into the guide hole 51, and the other end of the PIN pin 81 is located outside the guide seat 5. The drive structure 1 drives the ballast structure 2 to move and contact the PIN pin 81, and then applies pressure to the PIN pin 81, driving the PIN pin 81 to move into the mounting hole 83, and pressing the PIN pin 81 into the mounting hole 83.

[0040] Specifically, such as Figure 1As shown, a slider is installed on the ballast structure 2, and a guide rail is installed on the support plate 72 fixedly connected to the base 7. The length direction of the guide rail is consistent with the first direction, and the slider is fitted with the guide rail. The drive structure 1 can be of various forms, as long as it can apply force to the ballast structure 2 along the first direction; for example... Figure 5 As shown, the length of the PIN pin is L, the length of the mounting hole 83 is H1, the length of the guide hole 51 is H2, and H1+H2 is less than L.

[0041] By setting a ballast structure 2 that moves along the first direction and a positioning seat 6 that aligns the mounting hole 83 on the connector housing 82 with the first direction, the directionality of the pressing force is ensured to be along the axial direction of the mounting hole 83. Combined with the guide hole 51 on the matching guide seat 5 that is coaxial with the mounting hole 83, the PIN pin 81 is guided during the movement, further ensuring that the PIN pin 81 moves along the first direction during the movement, avoiding tilting of the PIN pin after assembly and surface damage, and improving the assembly quality of the connector.

[0042] like Figures 1-3 As shown, the ballast structure 2 includes a ballast body 21 fixedly connected to the moving end of the drive structure 1. The ballast body 21 is slidably mounted on the base 7. The sliding direction of the ballast body 21 is the first direction. A pressure head 22 corresponding to the PIN needle 81 is fixedly mounted on the ballast body 21. The pressure head 22 is used to contact the PIN needle 81 and apply pressure to the PIN needle 81.

[0043] A pressure head 22 is separately provided on the ballast body 21 for each PIN pin 81. The pressure head 22 corresponds to the PIN pin 81, meaning that the axes of the pressure head 22 and the PIN pin 81 coincide, ensuring uniform contact between the pressure head 22 and the PIN pin 81. Providing an independent pressure head 22 for contact with the PIN pin 81 allows the ballast structure 2 to avoid obstructing other parts of the connector housing 82. It can also be independently designed according to the number and length of the PIN pins 81, facilitating the use of a drive structure 1 with the same stroke to press multiple PIN pins 81 together. Figure 2 , Figure 5 As shown.

[0044] Example 2: Based on Example 1, such as Figure 2 , Figures 5-8 As shown, Figures 10-11 As shown, the PIN pin pressing device of this embodiment has a through hole on the press body 21, the axis of the through hole is consistent with the first direction, and the device also includes an auxiliary clamp 4, which includes a guide post 42, a claw assembly 43, a first elastic member 41 and a limiting member 421.

[0045] Guide post 42 is inserted into the through hole and slides with the through hole; The claw assembly 43 is fixed at one end of the guide post 42. The claw assembly 43 is located between the ballast body 21 and the guide seat 5. The claw assembly 43 is used to be detachably connected to the guide seat 5. The first elastic element 41 is connected at one end to the ballast body 21 and at the other end to the claw assembly 43; The limiting member 421 is fixed to the other end of the guide post 42 and is located on the side of the ballast body 21 away from the claw assembly 43, so that the first elastic member 41 is in a compressed state. During the process of the pressure head 22 moving toward the PIN needle 81, before contacting the PIN needle 81, the claw assembly 43 contacts and is detachably connected to the guide seat 5. The claw assembly 43 is limited by the guide seat 5. During the process of the pressure head 22 contacting and moving toward the PIN needle 81, the first elastic element 41 is compressed. As the pressure head 22 moves away from the PIN pin 81, the first elastic element 41 recovers, the limiting element 421 contacts the ballast body 21, and the claw assembly 43 and the guide seat 5 move away from the connector housing 82 along the first direction.

[0046] Specifically, the sliding fit between the through hole and the guide post 42 is used to realize the relative movement of the claw assembly 43 and the ballast body 21 along the first direction; the limiting member 421 limits the maximum distance between the claw assembly 43 and the ballast body 21; the first elastic member 41 is a compression spring sleeved on the outside of the guide post 42, with the compression direction consistent with the first direction, and the length that the compression spring can be compressed after the claw assembly 43 contacts the guide seat 5 should be greater than or equal to the insertion depth of the PIN pin 81.

[0047] The sliding fit between the through hole and the guide post 42, the limiting member 421 restricts the maximum distance between the claw assembly 43 and the ballast body 21, and the first elastic member 41 achieves an elastic connection between the ballast body 21 and the claw assembly 43. When the claw assembly 43 contacts the guide seat 5, the pressure of the ballast body 21 on the guide seat 5 is unloaded, and the claw assembly 43 is connected to the guide seat 5. After the PIN pin 81 is pressed, the ballast structure 2 is moved away from the connector housing 82, and the guide seat 5 is simultaneously disengaged from the connector housing 82 and the PIN pin 81.

[0048] In another embodiment, such as Figures 6-9 As shown, the structure of the claw assembly 43 includes a clamping base plate 434, a pair of limiting parts 433, a pair of L-shaped hooks 431, and a second elastic member 432.

[0049] The fixture base plate 434 is fixedly connected to the guide post 42; A pair of limiting portions 433 are fixedly disposed on the fixture base plate 434 at intervals along a second direction, the second direction being perpendicular to the first direction; A pair of L-shaped hooks 431 are located between two limiting parts 433, spaced apart and arranged opposite to each other along the second direction. Each L-shaped hook 431 is hinged to the clamp base plate 434. A first inclined surface 435 is provided on the L-shaped hook 431, and a second inclined surface 54 corresponding to the first inclined surface 435 is provided on the guide seat 5. The second elastic element 432 is disposed between the adjacent limiting part 433 and the L-shaped hook 431, so that the two L-shaped hooks 431 have a tendency to swing relative to each other. During the process of the claw assembly 43 moving toward the guide seat 5 and contacting the guide seat 5, the first inclined surface 435 and the second inclined surface 54 contact each other, driving the L-shaped hooks 431 to swing away from each other until the hook part of the L-shaped hook 431 passes the second inclined surface 54, after which the two L-shaped hooks 431 swing relative to each other, limiting the guide seat 5 between the L-shaped hooks 431 and the clamp base plate 434 along the first direction.

[0050] Specifically, the first inclined surface 435 is located at the end face of the hook portion of the L-shaped hook 431. When the first inclined surface 435 contacts the second inclined surface 54 and drives the L-shaped hook 431 to swing away from each other, the second elastic element 432 is further compressed. After the hook portion of the L-shaped hook 431 passes the second inclined surface 54, under the elastic force of the second elastic element 432, the two L-shaped hooks 431 swing relative to each other. The second elastic element 432 is a compression spring. Figure 7 As shown, the L-shaped hook 431 is in the state of hooking the guide seat 5. At this time, the distance between the hook parts of the two L-shaped hooks 431 is the smallest, the compression degree of the second elastic member 432 is the smallest, and the end of the L-shaped hook 431 away from the hook part is limited by the clamp base plate 434. Without other external forces, the L-shaped hook 431 is in a stable posture and can stably limit the guide seat 5 between the clamp base plate 434 and the hook part of the L-shaped hook 431 along the first straight direction. Preferably, the first direction is vertical.

[0051] In this embodiment of the PIN pin pressing device, when the claw assembly 43 and the guide seat 5 move away from the connector housing 82 along the first direction, as... Figure 12 As shown, after the guide seat 5 is manually moved along a third direction perpendicular to the first and second directions, the guide seat 5 separates from the claw assembly 43.

[0052] The claw assembly 43 is designed as an L-shaped hook 431 that engages with the guide seat 5. An inclined surface is provided on the L-shaped hook 431 and the guide seat 5, which converts the movement of the claw assembly 43 and the guide seat 5 along the first direction into the swing of the L-shaped hook 431. The L-shaped hook 431 can be opened during the contact movement between the claw assembly 43 and the guide seat 5. The second elastic element 432 drives the L-shaped hook 431 to reset, so that the auxiliary clamp 4 can be automatically and detachably connected to the guide seat 5 during the movement along the first direction, thereby improving the ease of operation of the device.

[0053] Example 3: Based on the above embodiments, the PIN pin pressing device of this embodiment, such as Figure 4 As shown, the positioning seat 6 includes a base 61, a positioning structure 65, and a stop arm 62.

[0054] The base 61 is fixed to the seat 7 and limits the connector housing 82 from one side of the connector housing 82 in the first direction, so as to bear the pressure applied to the connector housing 82 by the ballast structure 2. A positioning structure 65 is provided on the base 61. The positioning structure 65 is structurally matched with the connector housing 82 and limits the connector housing 82 from a direction perpendicular to the first direction. Multiple stop arms 62 are rotatably mounted on the base 61. When the end 621 of the stop arm 62 contacts the connector housing 82, it limits the connector housing 82 from the other side of the connector housing 82 in the first direction.

[0055] Specifically, such as Figure 4 As shown, the specific structure of the positioning structure 65 is related to the structure of the connector housing 82. It limits the connector housing 82 from a direction perpendicular to the first direction to ensure that the mounting hole 83 on the connector housing 82 is aligned with the pressure head 22. The stop arm 62 presses the connector housing 82 onto the base 61. There are at least two stop arms 62 to ensure that the connector housing 82 does not separate from the base 61 due to the friction between the guide hole 51 and the PIN pin when the guide seat 5 separates from the connector housing 82.

[0056] Positioning structure 65 and stop arm 62 are set on positioning seat 6 to limit the connector housing 82 from multiple directions, ensuring that the mounting hole 83 of connector housing 82 is coaxial with guide hole 51. After the PIN pin 81 is crimped, the stop guide seat 5 moves away from the PIN pin along with the pressure structure 2 to prevent connector housing 82 from moving with the guide seat 5, reducing the operator's extra operation of separating guide seat 5 from PIN pin 81 and improving the convenience of operation.

[0057] like Figures 3-5 As shown, the guide seat 5 includes a block body 53, on which a first positioning hole 52 is provided. The positioning seat 6 has a first positioning pin 64 corresponding to the first positioning hole 52. The first positioning hole 52 and the first positioning pin 64 are fitted together so that the guide hole 51 is coaxial with the mounting hole 83.

[0058] Specifically, such as Figure 5As shown, the guide hole 51 is integrally formed on the block body 53; the first positioning hole 52 is fitted with the first positioning pin 64 so that after the guide seat 5 and the positioning seat 6 are fitted, the guide seat 5 and the connector housing 82 can be positioned and fitted, and the guide hole 51 and the mounting hole 83 are coaxial; there are two first positioning holes 52, which are set along the second direction, and there are two corresponding first positioning pins 64 on the positioning seat 6, which are a round pin and a diamond pin, respectively, to eliminate over-positioning and facilitate the positioning and installation of the guide seat 5.

[0059] like Figure 3 , Figure 4 , Figure 8 , Figure 11 As shown, the ballast structure 2 has a second positioning pin 23, and the positioning seat 6 has a second positioning hole 63 corresponding to the second positioning pin 23. The base 7 is provided with a positioning clamp 71, which is used to detachably connect the positioning seat 6 to the base 7 and make the second positioning pin 23 and the second positioning hole 63 face each other.

[0060] Specifically, during the movement of the ballast structure 2 toward the positioning seat 6, when the clamping base plate 434 of the claw assembly 43 contacts the guide seat 5, the end of the second positioning pin 23 contacts the end of the second positioning hole 63, such as... Figure 8 As shown, during the pressing process of the pressure head 22 of the ballast structure 2 continuing to move toward the PIN pin 81 and contacting the pressing device, the second positioning pin 23 continues to move toward the second positioning hole 63, as... Figure 11 As shown; there are two second positioning holes 63, each located at the center of the rotation axis of the stop arm 62, and there are two corresponding second positioning pins 23, both of which are circular pins.

[0061] The insertion and engagement of the second positioning pin 23 and the second positioning hole 63 is mainly used for the positioning and installation of the positioning seat 6 on the base 7 during the debugging stage of the PIN pin pressing device, ensuring the coaxiality of the PIN pin 81 and the pressing head 22. After the second positioning pin 23 and the second positioning hole 63 are inserted, the positioning fixture 71 can be used to detachably fix the positioning seat 6 on the base 7. In addition, during the use of the device, the second positioning pin 23 and the second positioning hole 63 will be inserted once for each pressing operation. The wear degree of the second positioning hole 63 can also be used to judge whether the position of the positioning seat 6 has deviated during the use of the device.

[0062] The second positioning pin 23 and the second positioning hole 63 are respectively set on the ballast structure 2 and the positioning seat 6 for insertion during the pressing process. They can not only serve as positioning structures during the device debugging process, but also as detection components during the device use process, ensuring the accuracy of the position of the positioning seat 6, thereby ensuring the pressing quality.

[0063] In a specific manner, such as Figure 4As shown, the positioning fixture 71 includes a pair of U-shaped limiting frames 711 arranged opposite to each other. The U-shaped limiting frames 711 are fixedly installed on the base 7. The positioning seat 6 is located in the rectangular frame formed by the two U-shaped limiting frames 711. The U-shaped limiting frames 711 are provided with a plurality of bolt holes 713 along the second direction and the third direction. Bolts 712 are installed in the bolt holes 713 (only one bolt 712 is shown in the figure). The end of the bolt 712 contacts the outer peripheral surface of the positioning seat 6. The position of the positioning seat 6 in the rectangular frame along the second direction and the third direction is adjusted by adjusting the length of the end of the bolt 712 extending into the rectangular frame, thereby making the second positioning pin 23 and the second positioning hole 63 face each other.

[0064] In a specific manner, such as Figure 1 As shown, the drive structure 1 is a push-pull quick elbow clamp, and the end of the moving rod of the quick elbow clamp is fixedly connected to the ballast structure 2.

[0065] The push-pull type quick elbow clamp is used as the drive structure 1. The handle is manually driven to swing, which drives the moving rod to move. The operation is simple and the device cost is low.

[0066] like Figure 1 As shown, the PIN pin pressing device of this embodiment also includes a limiting structure. The limiting structure includes a limiting head 91 fixedly connected to the pressure structure 2 and a first contact portion 92 fixedly installed on the base 7. When the limiting head 91 contacts the first contact portion 92, the pressure structure 2 stops moving toward the connector housing 82.

[0067] A limiting head 91 and a first contact portion 92 are provided on the ballast structure 2 and the base 7 to limit the displacement of the ballast structure 2 relative to the connector housing 82, ensuring that the installation height of the PIN pins is consistent each time they are pressed in, thereby improving the assembly quality of the connector.

[0068] Normally, both the first contact portion 92 and the limiting head 91 are rigid components. To avoid excessive impact force when the first contact portion 92 suddenly contacts the limiting head 91, a buffer 93 is provided on the ballast structure 2, and a second contact portion 94 is provided on the base 7. During the contact process between the second contact portion 94 and the buffer 93, the second contact portion 94 has a buffering and deceleration effect on the ballast structure 2, reducing the speed and impact noise generated when the limiting head 91 contacts the first contact portion 92. The buffer 93 can be of model ACA0806. Both the first contact portion 92 and the second contact portion 94 are cylindrical.

[0069] In one specific embodiment, the limiting head 91 is a micrometer head. Specifically, the micrometer head is protected by a housing 3, which is fixedly mounted on the ballast structure 2. The micrometer head is model CMHN13, brand Misumi, and can finely adjust the position of the end of the limiting head 91. It has a self-locking function, provides high locking force, and can prevent loosening due to vibration.

[0070] Using a micrometer head as a limit head 91 allows for precise adjustment of the PIN insertion depth, ensuring the PIN insertion quality.

[0071] The working process of the pressing device in this embodiment is as follows: Step 1: Place the connector housing 82 on the positioning seat 6 and mate it with the positioning structure 65 on the positioning seat 6.

[0072] Step 2: Rotate the stop arms 62 located on both sides of the connector housing 82 so that the ends 621 of the stop arms 62 press against the connector housing 82, thus fixing the connector housing 82 onto the positioning seat 6.

[0073] Step 3: Align the positioning structure 65 of the guide seat 5 with the first positioning pin 64 on the positioning seat 6, and position the guide seat 5 on the positioning seat 6, so that the guide hole 51 is coaxial with the mounting hole 83. Figure 1 , Figure 2 As shown.

[0074] Step 4: Use tweezers to pick up the PIN pin 81 and place it into the designated guide hole 51, such as... Figure 1 , Figure 2 As shown.

[0075] Step 5: Press down the handle of the quick-release elbow clamp. During the pressing down of the handle, the ballast body 21 moves towards the guide seat 5. After the claw assembly 43 contacts the guide seat 5, it connects to the guide seat 5 through the L-shaped hook 431. Figure 6 , Figure 7 As shown; The ballast body 21 continues to move toward the guide seat 5. After the clamp base plate 434 contacts the guide seat 5, the first elastic member 41 is further compressed, and the limiting member 421 moves away from the ballast body 21. At the same time, the pressure head 22 approaches and contacts the PIN pin 81, applying pressure to the PIN pin until the first contact portion 92 and the limiting head 91 contact each other, and the PIN pin pressing is completed. Figure 10 , Figure 11 As shown.

[0076] Step Six: Lift the handle of the quick-release elbow clamp to move the ballast body 21 away from the connector housing 82. After the first elastic element 41 returns to its original position, the limiting element 421 contacts the ballast body 21. As the quick-release elbow clamp is lifted, the ballast body 21 moves the guide seat 5 away from the connector housing 82, separating the guide seat 5 from the PIN pin 81. Figure 12 As shown.

[0077] Step 7: After stopping the operation of the quick-release elbow clamp, remove the guide seat 5 from the claw assembly 43 along the third direction, and remove the connector housing 82 with the press-fit PIN pin 81 from the positioning seat 6.

[0078] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A PIN pin pressing device, characterized in that: include, Ballast structure (2) is slidably mounted on the base (7) of the device, and the sliding direction of the ballast structure (2) is the first direction; The driving structure (1) is connected to the ballast structure (2) for driving the ballast structure (2) to slide along the first direction; The positioning seat (6) is fixedly installed on the seat body (7) and is used to position and place the connector housing (82) so that the axial direction of the mounting hole (83) of the PIN pin (81) to be installed on the connector housing (82) is consistent with the first direction; The guide seat (5) is provided with a guide hole (51), the guide hole (51) matching the outer diameter of the PIN pin (81); After the guide seat (5) is fitted with the connector housing (82), the guide seat (5) is located between the positioning seat (6) and the ballast structure (2). The guide hole (51) is coaxial with the mounting hole (83). One end of the PIN pin (81) is inserted into the guide hole (51), and the other end of the PIN pin (81) is located outside the guide seat (5). The driving structure (1) drives the ballast structure (2) to move and contact the PIN pin (81) and applies pressure to the PIN pin (81), driving the PIN pin (81) to move into the mounting hole (83) and press the PIN pin (81) into the mounting hole (83).

2. The PIN pin pressing device as described in claim 1, characterized in that: The ballast structure (2) includes a ballast body (21) fixedly connected to the moving end of the drive structure (1). The ballast body (21) is slidably mounted on the seat (7). The sliding direction of the ballast body (21) is a first direction. A pressure head (22) corresponding to the PIN needle (81) is fixedly mounted on the ballast body (21). The pressure head (22) is used to contact the PIN needle (81) and apply pressure to the PIN needle (81).

3. The PIN pin pressing device as described in claim 2, characterized in that: The ballast body (21) is provided with a through hole, the axial direction of which is consistent with the first direction. The device also includes an auxiliary clamp (4), which includes: The guide post (42) is inserted into the through hole and slides in the through hole; The claw assembly (43) is fixed at one end of the guide post (42). The claw assembly (43) is located between the ballast body (21) and the guide seat (5). The claw assembly (43) is used to detachably connect with the guide seat (5). The first elastic element (41) is connected at one end to the ballast body (21) and at the other end to the claw assembly (43); The limiting member (421) is fixed to the other end of the guide post (42) and located on the side of the ballast body (21) away from the claw assembly (43), so that the first elastic member (41) is in a compressed state; During the movement of the pressure head (22) toward the PIN needle (81), before contacting the PIN needle (81), the claw assembly (43) contacts and is detachably connected to the guide seat (5). The claw assembly (43) is limited by the guide seat (5). During the contact and movement of the pressure head (22) with the PIN needle (81), the first elastic element (41) is compressed. As the pressure head (22) moves away from the PIN pin (81), the first elastic element (41) recovers, the limiting element (421) contacts the ballast body (21), and the claw assembly (43) moves away from the connector housing (82) along the first direction together with the guide seat (5).

4. The PIN pin pressing device as described in claim 3, characterized in that: The structure of the claw assembly (43) includes: The clamp base plate (434) is fixedly connected to the guide post (42); A pair of limiting portions (433) are fixedly disposed on the clamp base plate (434) at intervals along a second direction, the second direction being perpendicular to the first direction; A pair of L-shaped hooks (431) are located between two limiting parts (433), spaced apart and opposite to each other along the second direction. Each L-shaped hook (431) is hinged to the clamp base plate (434). The L-shaped hook (431) is provided with a first inclined surface (435), and the guide seat (5) is provided with a second inclined surface (54) corresponding to the first inclined surface (435). The second elastic element (432) is disposed between the adjacent limiting part (433) and the L-shaped hook (431), so that the two L-shaped hooks (431) have a tendency to swing relative to each other; During the process of the claw assembly (43) moving toward the guide seat (5) and contacting the guide seat (5), the first inclined surface (435) and the second inclined surface (54) contact each other, driving the L-shaped hooks (431) to swing away from each other until the hook part of the L-shaped hook (431) passes the second inclined surface (54) and then the two L-shaped hooks (431) swing relative to each other, limiting the guide seat (5) between the L-shaped hooks (431) and the clamp base plate (434) along the first direction.

5. The PIN pin pressing device as described in claim 3, characterized in that: The positioning seat (6) includes: The base (61) is fixed to the seat (7) and limits the connector housing (82) from one side of the connector housing (82) in the first direction, and is used to bear the pressure applied to the connector housing (82) by the ballast structure (2); A positioning structure (65) is provided on the base (61). The positioning structure (65) is structurally matched with the connector housing (82) and limits the connector housing (82) from a direction perpendicular to the first direction. Multiple stop arms (62) are rotatably mounted on the base (61). When the end (621) of the stop arm (62) contacts the connector housing (82), it limits the connector housing (82) from the other side of the connector housing (82) in the first direction.

6. The PIN pin pressing device as described in any one of claims 1-5, characterized in that: The guide seat (5) includes a block body (53), the block body (53) is provided with a first positioning hole (52), and the positioning seat (6) has a first positioning pin (64) corresponding to the first positioning hole (52). The first positioning hole (52) and the first positioning pin (64) are fitted together so that the guide hole (51) and the mounting hole (83) are coaxial.

7. The PIN pin pressing device as described in any one of claims 1-5, characterized in that: The ballast structure (2) has a second positioning pin (23), and the positioning seat (6) has a second positioning hole (63) corresponding to the second positioning pin (23). The base (7) is provided with a positioning clamp (71) for detachably connecting the positioning seat (6) to the base (7) and making the second positioning pin (23) and the second positioning hole (63) face each other.

8. The PIN pin pressing device as described in any one of claims 1-5, characterized in that: The drive structure (1) is a push-pull quick elbow clamp, and the end of the moving rod of the quick elbow clamp is fixedly connected to the ballast structure (2).

9. The PIN pin pressing device as described in any one of claims 1-5, characterized in that: The device further includes a limiting structure, which includes a limiting head (91) fixedly connected to the ballast structure (2) and a first contact portion (92) fixedly installed on the base (7). When the limiting head (91) contacts the first contact portion (92), the ballast structure (2) stops moving toward the connector housing (82).

10. The PIN pin pressing device as described in claim 9, characterized in that: The limit head (91) is a differential head.

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