Jig applied to rubber core assembly
By designing a fixture that includes a riveting bevel block and a movable spring, the problem of inaccurate assembly of the PIN needle and the connecting rubber core is solved. Accurate riveting can be achieved even in the case of errors, thereby improving the accuracy and efficiency of assembly.
Patent Information
- Application Number
- CN202510975220.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-15
- Publication Date
- 2025-09-09
AI Technical Summary
In the prior art, during the assembly process of the PIN pin and the connecting rubber core, if the PIN pin is not inserted into the rubber core pinhole according to the depth standard, the connecting rubber core is prone to deflection or falling, resulting in inaccurate assembly.
A jig for rubber core assembly was designed, including a jig frame, an assembly base, a riveting drive component and a riveting head. Components such as a riveting bevel, a movable spring and a negative pressure joint were used. The movable space and elastic force of the bevel were adjusted to ensure that the connected rubber core could be accurately riveted to the PIN pin even in the case of error.
It effectively reduces the risk of the connecting rubber core deflecting or falling off during the riveting process, and improves the accuracy and efficiency of assembly.
Smart Images
Figure CN120613626A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of connector production equipment, and in particular to a jig used for rubber core assembly. Background Art
[0002] A connector is a common automotive electrical connection component, often used to securely connect the wires of one electrical device to the socket of another. The connector consists of a connecting shell, a pin 1, and a connecting rubber core 2. The pin 1 conducts current, and the connecting rubber core 2 secures the pin 1 to the connecting shell.
[0003] Reference Figure 1 and Figure 2 The connecting rubber core 2 is made of an insulating, elastic material such as rubber or silicone. A core hole 21 is formed through the connecting rubber core 2 to accommodate the PIN 1, allowing it to be securely mounted to the connecting housing through the elastic connecting rubber core 2. The top and bottom of the PIN 1 are respectively provided with a top raised portion 11 and a bottom raised portion 12. Both the top raised portion 11 and the bottom raised portion 12 have larger diameters than the rest of the PIN 1 and are chamfered, making it easier for the PIN 1 to insert into the core hole 21.
[0004] In existing technologies, the PIN pin 1 and the connecting rubber core 2 must be manufactured or purchased separately, and then the connecting rubber core 2 is assembled to the PIN pin 1. During the assembly of the rubber core, a worker must align one end of the PIN pin 1 with the rubber core pinhole 21 of the connecting rubber core 2 until further insertion becomes difficult due to resistance within the rubber core pinhole 21. The worker then transfers the PIN pin 1 and connecting rubber core 2 to an assembly jig, which allows the PIN pin 1 to be inserted into the connecting rubber core 2 to the desired depth.
[0005] The assembly jig includes an assembly base, a riveting head and a riveting driving component. The assembly base is provided with a pinhole for accommodating the end of the PIN needle 1 away from the connecting rubber core 2. The riveting driving component is used to make the riveting head press tightly against the end of the connecting rubber core 2 away from the PIN needle 1 in the vertical direction.
[0006] When using the assembly jig, the worker first needs to insert the end of the PIN needle 1 away from the connecting rubber core 2 into the placement pin hole of the assembly base, and then use the riveting drive component to make the riveting head fit tightly against the end of the connecting rubber core 2 away from the PIN needle 1, thereby overcoming the friction between the PIN needle 1 and the connecting rubber core 2, so that the connecting rubber core 2 moves downward along the vertical axis and rivets the connecting rubber core 2, so that the PIN needle 1 is inserted into the rubber core pin hole 21 according to the required depth standard, and the connecting rubber core 2 is firmly assembled to the PIN needle 1.
[0007] In the aforementioned related art, after the end of the PIN pin 1, away from the connecting rubber core 2, is inserted into the placement pinhole, the connecting rubber core 2 is positioned on top of the PIN pin 1. If the worker fails to insert the PIN pin 1 into the rubber core pinhole 21 according to the required depth, the connecting rubber core 2 may be deflected or even fall off under the action of the riveting head, resulting in the connecting rubber core 2 not being properly assembled with the PIN pin 1. Summary of the Invention
[0008] In order to ensure that the connecting rubber core can still be accurately assembled to the PIN pin when the PIN pin is not inserted into the rubber core pinhole of the connecting rubber core according to the depth standard, the present application provides a jig for assembling the rubber core.
[0009] The present application provides a jig for rubber core assembly using the following technical solutions: A jig for assembling a rubber core, comprising a jig frame, an assembly base, a riveting drive, and a riveting head. The assembly base and the riveting drive are both mounted on the jig frame. The assembly base is used to fix a PIN pin that is plugged into the rubber core. The riveting drive is used to move the riveting head toward or away from the assembly base in a vertical direction. The riveting head includes a riveting sleeve, a riveting bevel block and a movable spring; The riveting sleeve is provided with a limiting inclined hole and a movable chamber, wherein the limiting inclined hole is located at the bottom of the movable chamber and is connected to the movable chamber; the inner diameter of the movable chamber is larger than the top inner diameter of the limiting inclined hole, and the top inner diameter of the limiting inclined hole is larger than the bottom inner diameter; the riveting oblique block is located inside the riveting sleeve, the top diameter of the riveting oblique block is larger than the bottom diameter, and the shape of the riveting oblique block is adapted to the shape of the limiting inclined hole; The riveting oblique block is provided with a riveting rubber core hole and a guide pin hole. The riveting rubber core hole is located at the bottom of the guide pin hole and is connected to the guide pin hole. The top of the riveting rubber core hole is adapted to connect the rubber core, and the guide pin hole is adapted to the PIN pin. The two ends of the movable spring are respectively installed on the riveting sleeve and the riveting oblique block, and the movable spring is normally compressed.
[0010] By adopting the above technical solution, when the PIN needle is not inserted into the rubber core pinhole according to the depth standard, or the PIN needle and the connecting rubber core are not aligned with the rivet head, so that the rivet head does not accurately rivet the connecting rubber core to the PIN needle along the vertical axis direction during the riveting process, the connecting rubber core will collide with the bottom of the riveting bevel block, or the PIN needle will collide with the bottom hole of the guide pin hole, thereby causing the riveting bevel block to overcome the elastic force of the movable spring and detach from the inner wall of the limiting inclined hole, so that the riveting bevel block has enough active space to swing, which is conducive to reducing the impact on the connecting rubber core and making the connecting rubber core easier to slide into the inside of the riveting rubber core hole, so that even if the connecting rubber core and the PIN needle are not accurately set in the vertical direction, they can still be riveted relatively accurately along the vertical axis direction.
[0011] On the premise of ensuring the above applicability, when the PIN needle and the connecting rubber core are aligned with the riveting head within the error range, the riveting bevel block is always tightly fitted into the limiting inclined hole under the elastic force of the movable spring, so that the riveting bevel block is not easy to shake under the external force disturbance of the worker, which is conducive to reducing the occurrence of the riveting bevel block deviating from the vertical axis when entering the riveting rubber core hole, thereby ensuring the accuracy of riveting.
[0012] Optionally, the bottom inner diameter of the riveted rubber core hole is larger than the top inner diameter.
[0013] By adopting the above technical solution, when the error of the connecting rubber core is large, the riveting rubber core hole with a larger inner diameter can more easily guide the connecting rubber core to the top of the riveting rubber core hole, making the connecting rubber core less likely to deflect or fall off during the riveting process.
[0014] Optionally, a slant block positioning hole is provided inside the riveting sleeve, and the slant block positioning hole is located at the top of the active chamber and is connected to the active chamber; A slope block positioning portion is provided on the top of the riveted slope block, and the slope block positioning portion can be inserted and adapted to the slope block positioning hole along the vertical direction.
[0015] By adopting the above technical solution, when the connecting rubber core is riveted and assembled, the inclined block positioning part is inserted into the inclined block positioning hole, and the riveting sleeve is tightly fitted into the inclined block positioning part of the riveted inclined block through the inner wall of the inclined block positioning hole, so that the riveted inclined block is not easy to be offset when it is riveted against the connecting rubber core.
[0016] Optionally, the assembly base is provided with a plug-in placement column, the plug-in placement column is penetrated by a pin hole, and the pin hole is used to accommodate a PIN needle and is adapted to the PIN needle; The assembly base is equipped with a negative pressure connector, which is used to generate negative pressure and is connected to the placement pinhole.
[0017] By adopting the above technical solution, after the PIN pin with the connecting rubber core is inserted into the placement pin hole, the negative pressure joint generates negative pressure, so that the PIN pin is adsorbed and fixed to the assembly base, so that the PIN pin is not easy to tilt at a large angle under the action of the riveting head, which is conducive to ensuring that the PIN pin and the connecting rubber core are aligned with the riveting head.
[0018] Optionally, the material for placing the plug-in column is rubber.
[0019] By adopting the above technical solution, it is helpful to reduce the wear of the PIN pin when the PIN pin is inserted into the pin hole.
[0020] Optionally, the top opening for placing the pinhole is chamfered.
[0021] By adopting the above technical solution, it is convenient for workers to insert the PIN needle into the pinhole in the actual operation process.
[0022] Optionally, the assembly base slides in a horizontal direction to fit on the fixture frame.
[0023] By adopting the above technical solution, it is convenient for workers to slide the assembly base in front of themselves to operate when fixing the PIN pin with the connecting rubber core on the assembly base, reducing the obstruction of the fixture frame, thereby facilitating the workers' operation.
[0024] Optionally, the jig frame is installed with a base stopper, and when the PIN pin fixed to the assembly base is aligned with the riveting head along the vertical axis, the assembly base fits against the base stopper.
[0025] By adopting the above technical solution, after the worker fixes the PIN pin with the connecting rubber core on the assembly base, the assembly base is pushed and pulled to reset until it fits against the base block, which helps to reduce the situation where the team leader pushes and pulls the base insufficiently or excessively, causing the PIN pin and the connecting rubber core to be misaligned with the rivet head.
[0026] Optionally, the jig frame slides in the vertical direction and is equipped with a vertical slide, the riveting head is installed on the vertical slide, the riveting drive component is a cylinder, the cylinder body of the riveting drive component is installed on the jig frame, and the piston rod of the riveting drive component is installed on the vertical slide in the vertical direction.
[0027] The adoption of the above technical solution is conducive to ensuring the stability of the riveting head when it moves in the vertical direction.
[0028] Optionally, the assembly base can fix a plurality of PIN pins plugged with a connecting rubber core, and the riveting heads are provided with a plurality of rivet pressing heads respectively used for riveting each PIN pin plugged with the assembly base.
[0029] By adopting the above technical solution, it is convenient to rivet a plurality of connecting rubber cores and PIN needles within one riveting work cycle, thereby helping to improve the working efficiency of workers.
[0030] In summary, this application includes at least one of the following beneficial technical effects: 1. When the PIN needle is not inserted into the pinhole of the rubber core according to the depth standard, or the PIN needle and the connecting rubber core are not aligned with the riveting head, so that the riveting head does not accurately rivet the connecting rubber core onto the PIN needle along the vertical axis during the riveting process, the connecting rubber core will collide with the bottom of the riveting inclined block, or the PIN will collide with the bottom opening of the guide pin hole, thereby causing the riveting inclined block to overcome the elastic force of the movable spring and break away from the inner wall of the limiting inclined hole, so that the riveting inclined block has enough space to swing, thereby alleviating the impact on the connecting rubber core and making it easier for the connecting rubber core to slide into the inside of the riveting rubber core hole. Even if the connecting rubber core and the PIN needle are not accurately arranged in the vertical direction, they can still be riveted relatively accurately along the vertical axis. On the premise of ensuring the above applicability, when the PIN needle and the connecting rubber core are aligned with the riveting head within the error range, the riveting bevel block is always tightly fitted in the limit inclined hole under the elastic force of the movable spring, so that the riveting bevel block is not easy to shake under the external force disturbance of the worker, which is conducive to reducing the occurrence of the riveting bevel block deviating from the vertical axis when entering the riveting rubber core hole, thereby ensuring the accuracy of riveting; 2. When the error of the connecting rubber core is large, the riveting rubber core hole with a larger inner diameter is easier to guide the connecting rubber core to the top of the riveting rubber core hole, making the connecting rubber core less likely to deflect or fall off during the riveting process; 3. When the connecting rubber core is riveted and assembled, the inclined block positioning part is inserted into the inclined block positioning hole, and the riveting sleeve is tightly fitted into the inclined block positioning part of the riveting inclined block through the inner wall of the inclined block positioning hole, so that the riveting inclined block is not easy to deviate when it is riveted against the connecting rubber core. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] Figure 1 This is a schematic diagram of the cooperation between the PIN needle and the connecting rubber core in the background technology of this application.
[0032] Figure 2 This is an exploded diagram of a PIN needle and a connecting rubber core in the background technology of this application.
[0033] Figure 3 This is the first overall schematic diagram of the overall structure of the embodiment of the present application.
[0034] Figure 4 This is a second overall schematic diagram of the overall structure of an embodiment of the present application.
[0035] Figure 5It is an overall schematic diagram of the assembled base according to an embodiment of the present application.
[0036] Figure 6 This is an overall schematic diagram of the placement of the plug-in column in the embodiment of the present application.
[0037] Figure 7 It is an overall schematic diagram of the riveted joint according to the embodiment of the present application.
[0038] Figure 8 It is a cross-sectional schematic diagram of the riveted joint according to an embodiment of the present application.
[0039] Figure 9 It is a schematic diagram of the coordination between the inclined block positioning portion and the inclined block positioning hole in an embodiment of the present application.
[0040] Figure 10 This is a schematic diagram of the implementation of the riveting head of the embodiment of the present application to assemble the PIN pin and the connecting rubber core by riveting.
[0041] Explanation of the reference numerals: 1. PIN needle; 11. Top raised portion; 12. Bottom raised portion; 2. Connecting rubber core; 21. Rubber core pinhole; 3. Jig frame; 31. Vertical slide; 32. Base block; 4. Assembly base; 401. Riveting positioning hole; 41. Placement of plug-in column; 411. Placement of pinhole; 42. Negative pressure joint; 5. Riveting drive component; 6. Riveting head; 61. Riveting sleeve; 611. Movable chamber; 612. Limiting inclined hole; 613. Inclined block positioning hole; 62. Riveting inclined block; 621. Riveting rubber core hole; 622. Guide pinhole; 623. Inclined block positioning portion; 63. Movable spring. DETAILED DESCRIPTION
[0042] The following is combined with Figure 1-10 This application is described in further detail.
[0043] The embodiment of the present application discloses a jig for assembling a rubber core. Figure 3 The jig used for rubber core assembly includes: a jig frame 3, an assembly base 4, a riveting drive part 5 and a riveting head 6.
[0044] The assembly base 4 is located at the bottom of the jig frame 3, and the assembly base 4 slides horizontally to fit the jig frame 3, so that the assembly base 4 can slide out according to the needs of the worker, reducing the situation where the jig frame 3 hinders the worker's hand operation.
[0045] Reference Figure 4 and Figure 5Several plug-in posts 41 are fixedly mounted on the top of the assembly base 4. These posts 41 are arranged in a straight line along the horizontal direction, and their distribution direction is perpendicular to the sliding direction of the assembly base 4. The posts 41 are made of elastic rubber to prevent them from scratching the PIN pins 1.
[0046] Reference Figure 6 The placement plug post 41 has a pinhole 411 extending through its height. Pinhole 411 is used to accommodate and fits snugly against the inner wall of the pinhole 411, ensuring secure insertion of the pin. Furthermore, the top opening of the pinhole 411 is chamfered, partially enlarging the top opening. This facilitates insertion of the pin and provides support via the raised bottom portion.
[0047] Reference Figure 5 The assembly base 4 is fixedly mounted with a plurality of negative pressure connectors 42, and the plurality of negative pressure connectors 42 are located on the side of the assembly base 4 facing away from the workers. The plurality of negative pressure connectors 42 are respectively connected to the placement pinholes 411 of the placement plug-in columns 41, so that airflow can be transported between the negative pressure connectors 42 and the corresponding placement pinholes 411. Each negative pressure connector 42 is connected to a negative pressure generating device through a plurality of hoses (not shown in the figure) and a combination valve (not shown in the figure) that can regulate the on and off of the plurality of hoses. Negative pressure can be generated at the corresponding negative pressure connectors 42 and the placement pinholes 411, thereby preventing the PIN pin 1 plugged into the placement pinhole 411 from shaking under the action of external forces, which helps to ensure the stable installation of the PIN pin 1.
[0048] Reference Figure 3 , a vertical slide 31 is provided on the top of the assembly base 4, and the vertical slide 31 slides vertically to fit with the fixture frame 3, and the vertical slide 31 specifically slides vertically with the fixture frame 3 through two guide rods on the top. Figure 4 The riveting drive member 5 is of the type of a cylinder, and the cylinder body of the riveting drive member 5 is fixedly mounted on the top of the jig frame 3, and the piston rod of the riveting drive member 5 is fixedly mounted on the vertical slide 31 along the vertical direction, so that the vertical slide 31 can be driven to approach or move away from the assembly base 4 in the vertical direction by the riveting drive member 5 connected to the air pump (not shown in the figure).
[0049] Reference Figure 3, there are a plurality of riveting heads 6, and the plurality of riveting heads 6 are fixedly mounted on the bottom of the vertical slide 31, so that the riveting driving member 5 drives each riveting head 6 to approach or move away from the assembly base 4 in the vertical direction. The plurality of riveting heads 6 are distributed in a straight line, and the plurality of riveting heads 6 correspond to each placement plug-in column 41, so that after the riveting heads 6 are aligned with the placement plug-in column 41 along the vertical axis, the PIN pins 1 plugged into each placement plug-in column 41 mounted on the assembly base 4 are riveted. In addition, referring to Figure 4 A base stopper 32 is also fixedly installed at the bottom of the jig frame 3. The base stopper 32 is located on the side of the assembly base 4 facing away from the worker. After the PIN pin 1 on the plug-in column 41 is plugged in and aligned with the riveting head 6 along the vertical axis, the bottom of the assembly base 4 facing away from the worker will fit into the base stopper 32, making it easier for the PIN pin 1 to align with the riveting head 6, which is beneficial to reduce the occurrence of excessive slippage of the assembly base 4.
[0050] Reference Figure 7 and Figure 8 The riveting head 6 includes a riveting sleeve 61, a riveting bevel block 62 and a movable spring 63. The riveting sleeve 61 is cylindrical and is used to fix the riveting head 6 to the vertical slide 31. A cylindrical movable chamber 611 is provided inside the riveting sleeve 61, and a truncated cone-shaped limiting inclined hole 612 is provided at the bottom of the riveting sleeve 61. The limiting inclined hole 612 is located at the bottom of the movable chamber 611, and the limiting inclined hole 612 is coaxial with the movable chamber 611. The inner diameter of the top of the limiting inclined hole 612 is larger than the inner diameter of the bottom, and the top of the limiting inclined hole 612 is connected to the movable chamber 611. The inner diameter of the movable chamber 611 is larger than the inner diameter of the top of the limiting inclined hole 612.
[0051] The riveting bevel block 62 is located inside the riveting sleeve 61, and the riveting bevel block 62 is in a truncated cone shape that matches the limiting inclined hole 612, so that the riveting bevel block 62 can fit tightly against the inner wall of the limiting inclined hole 612. The movable spring 63 is located at the top of the riveting bevel block 62, and the two ends of the movable spring 63 are fixedly mounted on the inner wall of the movable chamber 611 and the riveting bevel block 62, respectively. The movable spring 63 is normally compressed, so that the riveting bevel block 62 is normally tightly fitted against the inner wall of the limiting inclined hole 612 under the elastic force of the movable spring 63. Figure 9 When the elastic force of the movable spring 63 is overcome and the riveting bevel block 62 gradually approaches the top of the riveting sleeve 61, the distance between the riveting bevel block 62 and the limiting inclined hole 612 will gradually increase, thereby allowing the riveting bevel block 62 to gradually obtain a larger movable space for swinging, which is conducive to the riveting bevel block 62 to self-adapt and reduce the impact according to the riveting state of the connecting rubber core 2 and the PIN needle 1.
[0052] A riveting rubber core hole 621 is formed through the bottom of the riveting oblique block 62. The top of the riveting rubber core hole 621 is adapted to the connecting rubber core 2 sleeved on the PIN pin 1, so that after the connecting rubber core 2 enters the top of the riveting rubber core hole 621, the top of the riveting rubber core hole 621 can be close to the connecting rubber core 2, which helps to reduce the occurrence of bending, deflection or falling of the connecting rubber core 2 when the top inner wall of the riveting rubber core hole 621 is riveted and tightly fitted with the connecting rubber core 2. The bottom inner diameter of the riveting rubber core hole 621 is larger than the top inner diameter, so that the bottom specification of the riveting rubber core hole 621 is larger than the specification of the connecting rubber core 2, which helps the connecting rubber core 2 to smoothly enter the top of the riveting rubber core hole 621 from the bottom of the riveting rubber core hole 621, and reduces the occurrence of the connecting rubber core 2 pressing against the bottom of the riveting oblique block 62 and not entering the riveting rubber core hole 621.
[0053] A guide pin hole 622 is formed through the top of the cambered block 62 and communicates with the cambered rubber core hole 621. Furthermore, when the cambered block 62 is tightly fitted into the retaining hole 612, the guide pin hole 622 becomes coaxial with the retaining hole 612. The guide pin hole 622 aligns with the PIN 1, ensuring that once inserted, the inner wall of the guide pin hole 622 lies flush against the PIN 1, preventing it from moving.
[0054] Reference Figure 8 The interior of the riveting sleeve 61 is also provided with an inclined block positioning hole 613. The inclined block positioning hole 613 is cylindrical and coaxial with the active chamber 611. Moreover, the inclined block positioning hole 613 is located at the top of the active chamber 611 and is connected to the active chamber 611. The top of the riveting inclined block 62 is coaxially provided with an inclined block positioning portion 623. The inclined block positioning portion 623 can be inserted and adapted to the inclined block positioning hole 613 in the vertical direction, so that the riveting inclined block 62 can always remain on the vertical axis when the connecting rubber core 2 is riveted and assembled.
[0055] Reference Figure 10 The top of the assembly base 4 is provided with a plurality of riveting positioning holes 401. These riveting positioning holes 401 are arranged in a straight line and are coaxially arranged with the placement pin holes 411 of the respective insertion posts 41. The riveting positioning holes 401 are pluggably adapted to the riveting sleeve 61, making it easier to align the vertical axis when the inclined block positioning portion 623 is pluggably engaged with the inclined block positioning hole 613 and the connecting rubber core 2 is riveted and assembled using the riveting sleeve 61.
[0056] The implementation principle of a jig used for rubber core assembly in the embodiment of the present application is as follows: After sliding out the assembly base 4, a worker inserts the top end of the PIN 1 into the connecting rubber core 2, then inserts the bottom end of the PIN 1 into the placement hole 411. The PIN 1 inserted into the placement hole 411 is attracted by the negative pressure generated by the negative pressure connector 42, firmly erecting the PIN 1. Finally, the assembly base 4 is slid back into place until it abuts against the base stop 32, aligning the PIN 1 with the rivet head 6 along its vertical axis.
[0057] After the PIN needle 1 and the connecting rubber core 2 are installed in place, the riveting driving member 5 extends the piston rod, so that the riveting head 6 moves downward along the vertical axis close to the assembly base 4.
[0058] When the connecting rubber core 2 is skewed due to installation errors by workers, the top of the connecting rubber core 2 will directly slide into the interior of the riveted rubber core with a larger inner diameter, or it will press against the bottom of the riveted bevel block 62 and push up the riveted bevel block 62. When the riveted bevel block 62 is pushed up, the gap between the outer wall of the riveted bevel block 62 and the inner wall of the limiting inclined hole 612 gradually increases, and the elastic force of the movable spring 63 also gradually increases, allowing the riveted bevel block 62 to have more room to swing to adapt to the posture of the connecting rubber core 2, reducing the impact on the connecting rubber core 2. At the same time, as the elastic force of the movable spring 63 increases, the pressure exerted by the riveted bevel block 62 on the connecting rubber core 2 also gradually increases, ultimately making it easier for the connecting rubber core 2 to slide into the bottom of the riveted rubber core hole 621 due to the elastic force of the movable spring 63 and the swing of the riveted bevel block 62. Moreover, after the connecting rubber core 2 slides into the riveting rubber core hole 621 , the riveting inclined block 62 will reset and press against the limiting inclined hole 612 , making it easier for the connecting rubber core 2 to remain on the vertical axis during the riveting process.
[0059] After the connecting rubber core 2 enters the riveting rubber core hole 621, it will gradually move to the top of the riveting rubber core hole 621. Since the top of the riveting rubber core hole 621 is close to the connecting rubber core 2, the connecting rubber core 2 is not easy to bend, shake or fall. In addition, after the connecting rubber core 2 contacts the top inner wall of the riveting rubber core hole 621, the top inner wall of the riveting rubber core hole 621 is riveted against the connecting rubber core 2, and the connecting rubber core 2 pushes the inclined block positioning portion 623 of the riveting inclined block 62 to insert into the inclined block positioning hole 613, so that the connecting rubber core 2 is gradually pressed into the PIN pin 1 by the riveting sleeve 61 under the protection of the riveting rubber core hole 621.
[0060] When the top of the PIN pin 1 is exposed from the connecting rubber core 2, it will directly enter the guide pin hole 622 or collide with the top inner wall of the riveting rubber core hole 621. When the guide pin hole 622 collides with the top inner wall of the riveting rubber core hole 621, the riveting block 62 and the movable spring 63 will also adjust accordingly, which will not be further described here.
[0061] Therefore, when the PIN pin 1 and / or the connecting rubber core 2 are not accurately aligned with the rivet head 6 along the vertical axis, the rivet bevel 62 can adapt to a larger error, so that when the PIN pin 1 is not inserted into the rubber core pin hole 21 of the connecting rubber core 2 according to the depth standard, the connecting rubber core 2 can still be accurately assembled to the PIN pin 1.
[0062] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. A jig for assembling a rubber core, characterized by: The invention comprises a fixture frame (3), an assembly base (4), a riveting drive (5) and a riveting head (6), wherein the assembly base (4) and the riveting drive (5) are both mounted on the fixture frame (3), the assembly base (4) is used to fix a PIN pin (1) plugged with a connecting rubber core (2), and the riveting drive (5) is used to move the riveting head (6) closer to or farther away from the assembly base (4) in a vertical direction; The riveting head (6) comprises a riveting sleeve (61), a riveting bevel block (62) and a movable spring (63); The riveting sleeve (61) is provided with a limiting inclined hole (612) and an active chamber (611), wherein the limiting inclined hole (612) is located at the bottom of the active chamber (611) and is connected to the active chamber (611); the inner diameter of the active chamber (611) is larger than the top inner diameter of the limiting inclined hole (612), and the top inner diameter of the limiting inclined hole (612) is larger than the bottom inner diameter; the riveting oblique block (62) is located inside the riveting sleeve (61), the top diameter of the riveting oblique block (62) is larger than the bottom diameter, and the shape of the riveting oblique block (62) is adapted to the shape of the limiting inclined hole (612); The riveting oblique block (62) is provided with a riveting rubber core hole (621) and a guide pin hole (622); the riveting rubber core hole (621) is located at the bottom of the guide pin hole (622) and is connected to the guide pin hole (622); the top of the riveting rubber core hole (621) is adapted to the connecting rubber core (2), and the guide pin hole (622) is adapted to the PIN pin (1); The two ends of the movable spring (63) are respectively mounted on the riveting sleeve (61) and the riveting bevel block (62), and the movable spring (63) is normally compressed.
2. The jig for rubber core assembly according to claim 1, characterized in that: The bottom inner diameter of the riveted rubber core hole (621) is larger than the top inner diameter.
3. The jig for rubber core assembly according to claim 2, characterized in that: The interior of the riveting sleeve (61) is provided with an inclined block positioning hole (613), and the inclined block positioning hole (613) is located at the top of the active chamber (611) and is connected to the active chamber (611); A slope block positioning portion (623) is provided on the top of the riveted slope block (62), and the slope block positioning portion (623) can be plugged and adapted to the slope block positioning hole (613) in a vertical direction.
4. The jig for rubber core assembly according to claim 1, characterized in that: The assembly base (4) is provided with a placement plug-in column (41), and the placement plug-in column (41) is provided with a placement pin hole (411) extending therethrough, and the placement pin hole (411) is used to accommodate a PIN needle (1) and is adapted to fit the PIN needle (1); The assembly base (4) is installed with a negative pressure connector (42), and the negative pressure connector (42) is used to generate negative pressure and is connected to the placement needle hole (411).
5. The jig for rubber core assembly according to claim 4, characterized in that: The material for placing the plug-in column (41) is rubber.
6. The jig for rubber core assembly according to claim 4, characterized in that: The top opening of the needle hole (411) is chamfered.
7. The jig for rubber core assembly according to claim 1, characterized in that: The assembly base (4) slides in a horizontal direction and fits into the fixture frame (3).
8. The jig for rubber core assembly according to claim 7, characterized in that: The jig frame (3) is installed with a base stopper (32), and when the PIN pin (1) fixed to the assembly base (4) is aligned with the riveting head (6) along the vertical axis, the assembly base (4) fits against the base stopper (32).
9. The jig for rubber core assembly according to claim 1, characterized in that: The jig frame (3) is slidably engaged with a vertical slide seat (31) in a vertical direction, the riveting head (6) is mounted on the vertical slide seat (31), the riveting driving member (5) is a cylinder, the cylinder body of the riveting driving member (5) is mounted on the jig frame (3), and the piston rod of the riveting driving member (5) is mounted on the vertical slide seat (31) in a vertical direction.
10. The jig for rubber core assembly according to claim 1, characterized in that: The assembly base (4) can fix a plurality of PIN pins (1) plugged in with the connection rubber core (2), and the riveting head (6) is provided with a plurality of rivet pressing heads respectively used for riveting each PIN pin (1) plugged in with the assembly base (4).