Clamp for pin sintering
By designing a fixture for pin sintering, the pin positioning and fixing is achieved using limit holes and movable limit parts, the problem of pins being difficult to parallel in the production process of multi-pin plug structures is solved, and the limit guidance accuracy is improved and the defect rate is reduced.
Patent Information
- Application Number
- CN202422370018.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-26
AI Technical Summary
During the production process of multi-pin plug structure, it is difficult to keep the pins parallel to each other, resulting in low limit guidance accuracy and increasing the defect rate.
A fixture for pin sintering is designed, including a first clamping tool, and the pin positioning and fixing of the pin is achieved by providing a limiting hole on the first and second limiting parts and using a movable third limiting part to push the pin to contact the limiting hole wall.
It effectively solves the problem that the multi-pin plug structure is difficult to parallel between the pins during the production process, improves the limit guidance accuracy, and reduces the defect rate.
Smart Images
Figure CN223141273U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of clamping tooling, and particularly to a fixture for pin sintering. Background Art
[0002] Currently, in electronic devices, there is a multi-pin plug structure. During the production process of the multi-pin plug structure, the pins need to be abutted against the base, and then a heating device is used to heat the abutting part of the pins and the base to complete the connection between the pins and the base.
[0003] Among them, before heating, the pins need to be kept parallel to each other. Generally, a guiding member with guiding holes is used to guide the pins. However, to ensure that the pins can be inserted into the guiding holes, the diameter of the guiding holes should be at least slightly larger than the diameter of the pins, which results in low limiting and guiding accuracy of the guiding member for the pins and easily increases the defective rate of the multi-pin plug structure. Utility Model Content
[0004] In order to solve the problem that it is difficult to make the pins parallel to each other during the production process of the multi-pin plug structure, this application provides a fixture for pin sintering.
[0005] The fixture for pin sintering provided by this application adopts the following technical solutions:
[0006] A fixture for pin sintering includes a first clamping tooling, and the first clamping tooling includes a first limiting member, a second limiting member, and a third limiting member;
[0007] The first limiting member is provided with a first limiting hole, the second limiting member is provided with a second limiting hole, and the first limiting hole and the second limiting hole are used for the pins to pass through;
[0008] The third limiting member is arranged between the first limiting member and the second limiting member and is used to abut against one side of the pin, so that the other side of the pin abuts against the side walls of the first limiting hole and the second limiting hole.
[0009] Optionally, the third limiting member is provided with a third limiting hole for the pin to pass through, and the hole wall of the third limiting hole is used to abut against the pin.
[0010] Optionally, the first limiting member is provided with at least one group of first limiting hole groups, each first limiting hole group includes a plurality of the first limiting holes, and there is a corresponding third limiting hole for each of the plurality of first limiting holes in the same first limiting hole group. The pins passing through the plurality of first limiting holes in the same first limiting hole group can all pass out through the corresponding third limiting hole.
[0011] Optionally, the fixture for pin sintering further includes:
[0012] A locking member having a locked state and an unlocked state;
[0013] In the locked state, the locking member is used to lock at least one of the first limiting member and the second limiting member with the third limiting member;
[0014] In the unlocked state, the third limiting member is movable relative to the first limiting member and the second limiting member.
[0015] Optionally, the fixture for pin sintering further includes an elastic member, which is respectively connected to the second limiting member and the third limiting member, and the elastic member is used to drive the third limiting member to move.
[0016] Optionally, the fixture for pin sintering further includes a fourth limiting member, the fourth limiting member is arranged on the second limiting member, the third limiting member is provided with a first limiting portion, and the first limiting portion cooperates with the fourth limiting member in limiting manner.
[0017] Optionally, the fixture for pin sintering further includes: a second clamping fixture;
[0018] The second clamping tool comprises:
[0019] A base, used to support the base matched with the pin;
[0020] A fifth limiting member is connected to the base and is at least partially located on a side of the base facing away from the base.
[0021] Optionally, the fixture for pin sintering further includes:
[0022] A positioning member, wherein the first limiting member and the second limiting member are connected via the positioning member, and the second clamping jig is provided with a positioning portion that matches the positioning member.
[0023] Optionally, the positioning member passes through the third limiting member, and two second limiting portions are provided on the positioning member, and the two second limiting portions are respectively abutted against two opposite sides of the third limiting member.
[0024] The present application respectively provides a first limiting hole and a second limiting hole for the pins to pass through on the first limiting member and the second limiting member, thereby being able to perform preliminary limiting on multiple pins, and further push the pins to move by the movable second limiting member until the pins abut against the hole walls of the first limiting hole and the second limiting hole, thereby completing the positioning and fixing of the pins, and effectively solving the problem that it is difficult to achieve mutual parallelism between pins in a multi-pin plug structure during the production process. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a schematic three - dimensional structure diagram of the fixture for pin sintering provided by this application.
[0026] Figure 2 It is a schematic structure diagram of the first clamping jig of the fixture for pin sintering provided by this application.
[0027] Figure 3 provided by this application Figure 2 An enlarged schematic diagram of the position A in
[0028] Figure 4 It is a schematic partial structure diagram of the fixture for pin sintering provided by this application.
[0029] Figure 5 provided by this application Figure 4 An enlarged schematic diagram of the position B in
[0030] Figure 6 It is a schematic structure diagram of the second clamping jig of the fixture for pin sintering provided by this application.
[0031] Explanation of reference numerals:
[0032] 1. First clamping jig; 11. First limiting member; 111. First limiting hole; 12. Second limiting member; 121. Second limiting hole; 13. Third limiting member; 131. Third limiting hole; 132. First limiting portion;
[0033] 2. Second clamping jig; 21. Base; 211. Positioning portion; 22. Fifth limiting member;
[0034] 3. Locking member; 4. Fourth limiting member;
[0035] 5. Positioning member; 51. Second limiting portion;
[0036] 200. Pin;
[0037] 300. Base. Detailed implementation manners
[0038] The following further elaborates on this application in conjunction with the attached Figures 1 to 6 drawings for a more detailed description.
[0039] As Figures 1 to 3 shown, an embodiment of this application discloses a fixture for pin sintering, including a first clamping jig 1, which includes a first limiting member 11, a second limiting member 12, and a third limiting member 13;
[0040] The first limiting member 11 is provided with a first limiting hole 111, and the second limiting member 12 is provided with a second limiting hole 121. The first limiting hole 111 and the second limiting hole 121 are used for the pin 200 to pass through;
[0041] The third limiting member 13 is arranged between the first limiting member 11 and the second limiting member 12 and is used to abut against one side of the pin 200, so that the other side of the pin 200 abuts against the side walls of the first limiting hole 111 and the second limiting hole 121.
[0042] Specifically, the number of the first limiting holes 111 and the second limiting holes 121 is multiple. The positions of the first limiting holes 111 and the second limiting holes 121 correspond one by one, and any first limiting hole 111 and its corresponding second limiting hole 121 are coaxially arranged, so that the first limiting hole 111 and its corresponding second limiting hole 121 allow the same pin 200 to pass through. During the fixing process of the pin 200, first pass the pin 200 through the first limiting hole 111 and the second limiting hole 121 corresponding to the first limiting hole 111, so that the first limiting hole 111 and the second limiting hole 121 can preliminarily limit the pin 200.
[0043] The third limiting member 13 can move relative to the first limiting member 11 and the second limiting member 12. When the pin 200 is being passed through, the third limiting member 13 does not contact the pin 200. After the pin 200 is passed through, the third limiting member 13 can move closer to the pin 200 passed through the first limiting hole 111 and the second limiting hole 121, and drive the pin 200 to move until the pin 200 abuts against the hole walls of the first limiting hole 111 and the second limiting hole 121, so as to complete the positioning and fixing of the pin 200.
[0044] Wherein, the sizes of the first limiting hole 111 and the second limiting hole 121 are larger than the cross-sectional size of the pin 200, which is convenient for passing through the pin 200 and subsequent movement of the pin 200. For example, both the first limiting hole 111 and the second limiting hole 121 can be strip-shaped holes, and the width of the short side of the strip-shaped hole satisfies that the pin 200 passed through the first limiting hole 111 and the second limiting hole 121 cannot move along the short side direction of the strip-shaped hole. When the third limiting member 13 moves, it can drive the pin 200 passed through the first limiting hole 111 and the second limiting hole 121 to move along the long side direction of the first limiting hole 111 and the second limiting hole 121.
[0045] In the embodiments of the present application, by respectively providing a first limiting hole 111 and a second limiting hole 121 for the pins 200 to pass through on the first limiting member 11 and the second limiting member 12, the plurality of pins 200 can be preliminarily limited. Further, the second limiting member 12 that can move is used to push the pins 200 to move until the pins 200 abut against the hole walls of the first limiting hole 111 and the second limiting hole 121, thereby completing the positioning and fixing of the pins 200, effectively solving the problem that it is difficult to make the pins parallel to each other during the production process of the multi-pin plug structure.
[0046] As Figures 2 to 3 shown, in some embodiments, a third limiting hole 131 for the pins 200 to pass through is provided on the third limiting member 13, and the hole wall of the third limiting hole 131 is used to abut against the pins 200.
[0047] Specifically, the number of the third limiting holes 131 can be one or more, and there is a corresponding third limiting hole 131 between any group of corresponding first limiting holes 111 and second limiting holes 121, so that the pins 200 passing through the corresponding first limiting holes 111 and second limiting holes 121 in a group can pass through the corresponding third limiting holes 131, and further the third limiting holes 131 can play a role in positioning and preliminary limiting the pins 200.
[0048] The size of the third limiting hole 131 is larger than the cross-sectional size of the pins 200, and when the pins 200 are passing through, the hole wall of the third limiting hole 131 does not contact the pins 200. When the third limiting member 13 moves, the hole wall of the third limiting hole 131 drives the pins 200 to move until the pins 200 abut against the hole walls of the first limiting hole 111 and the second limiting hole 121.
[0049] Compared with the method of using the edge of the third limiting member 13 to push the pins 200 to move, in this embodiment, by providing the third limiting holes 131 on the third limiting member 13 and using the hole walls of the third limiting holes 131 to push the pins 200 to move, it helps to reduce the material consumption of the third limiting member 13. Further, by providing a plurality of third limiting holes 131 on the third limiting member 13, the third limiting member 13 in this embodiment can drive a plurality of pins 200 to move simultaneously, and further fix more pins 200 simultaneously.
[0050] As Figures 2 to 3 shown, in some embodiments, at least one group of first limiting hole groups is provided on the first limiting member 11. Each first limiting hole group includes a plurality of first limiting holes 111, and there is the same third limiting hole 131 corresponding to each of the plurality of first limiting holes 111 in the first limiting hole group. The pins 200 passing through the plurality of first limiting holes 111 in the same first limiting hole group can all pass through the corresponding third limiting holes 131.
[0051] Specifically, since the positions of the first limiting holes 111 and the second limiting holes 121 correspond one by one, the second limiting member 12 is provided with a second limiting hole group corresponding to the first limiting hole group one by one. The second limiting hole group includes a plurality of second limiting holes 121 corresponding to the plurality of first limiting holes 111 in the corresponding first limiting hole group one by one. In this embodiment, the shape and size of the third limiting hole 131 satisfy that the pins 200 passing through the plurality of first limiting holes 111 in the same first limiting hole group can all pass through the corresponding third limiting hole 131, and the plurality of pins 200 passing through are respectively inserted into the plurality of second limiting holes 121 one by one.
[0052] For example, the third limiting hole 131 can be a strip-shaped hole. The arrangement direction of the plurality of first limiting holes 111 in the first limiting hole group is parallel to the long side direction of the third limiting hole 131, and the arrangement direction of the plurality of second limiting holes 121 in the second limiting hole group is parallel to the arrangement direction of the plurality of first limiting holes 111 in the corresponding first limiting hole group.
[0053] The third limiting member 13 can move along the short side direction of the third limiting hole 131, so that one long side hole wall of the third limiting hole 131 can simultaneously push the plurality of pins 200 to move. This helps to reduce the number of openings of the third limiting hole 131 and reduce the production cost of the third limiting member 13.
[0054] As Figure 1 shown, in some embodiments, the first limiting member 11, the second limiting member 12, and the third limiting member 13 are all plate bodies, which have the advantages of being convenient for production preparation and opening holes. Among them, the first limiting member 11, the second limiting member 12, and the third limiting member 13 are parallel to each other.
[0055] As Figure 1 and Figure 4 shown, in some embodiments, the fixture for pin sintering further includes a locking member 3. The locking member 3 has a locking state and an unlocking state. In the locking state, the locking member 3 is used to lock at least one of the first limiting member 11 and the second limiting member 12 with the third limiting member 13. In the unlocking state, the third limiting member 13 can move relative to the first limiting member 11 and the second limiting member 12.
[0056] Specifically, the locking member 3 can be a movable pin. In the locking state, the movable pin penetrates through the first limiting member 11, the second limiting member 12, and the third limiting member 13 and locks the three, which is convenient for inserting the pins 200 into the first limiting holes 111, the third limiting holes 131, and the second limiting holes 121 in sequence. By pulling out the movable pin, the locking of the third limiting member 13 is released, so that the third limiting member 13 can move relative to the first limiting member 11 and the second limiting member 12 under the action of an external force, and further drive the pins 200 to move.
[0057] In some embodiments, the fixture for pin sintering further includes an elastic member (not shown in the figure), the elastic member is respectively connected to the second limiting member 12 and the third limiting member 13, and the elastic member is used to drive the third limiting member 13 to move.
[0058] Specifically, the elastic member can be a component such as a spring. The two ends of the spring are respectively connected to the second limiting member 12 and the third limiting member 13. When the third limiting member 13 is in the first state, the spring is in a state of being compressed or stretched for energy storage. The locking member 3 can be used to lock the third limiting member 13, so that the spring maintains the state of being compressed or stretched for energy storage. After the pin 200 is inserted, by releasing the locking of the third limiting member 13 by the locking member 3, the third limiting member 13 moves under the action of the restoring force of the spring, and the fixing of the pin 200 is completed.
[0059] As Figures 4 to 5 shown, in some embodiments, the fixture for pin sintering further includes a fourth limiting member 4. The fourth limiting member 4 is arranged on the second limiting member 12, and a first limiting portion 132 is arranged on the third limiting member 13. The first limiting portion 132 is in limiting cooperation with the fourth limiting member 4.
[0060] Specifically, the fourth limiting member 4 can be a limiting pin, and the first limiting portion 132 can be a strip-shaped limiting hole. The limiting pin at least partially extends into the inside of the first limiting portion 132. Through the limiting action between the limiting pin and the strip-shaped limiting hole, the moving direction of the third limiting member 13 is limited. In this embodiment, the elastic member spring can be arranged in the first limiting portion 132, and the arrangement direction of the elastic member is parallel to the long side direction of the first limiting portion 132. One end of the elastic member is connected to the inner wall of the first limiting portion 132, and the other end is connected to the fourth limiting member 4 to ensure that the telescopic direction of the elastic member is along the long side direction of the first limiting portion 132.
[0061] As Figure 1 and Figure 6 shown, in some embodiments, the fixture for pin sintering further includes a second clamping jig 2. The second clamping jig 2 includes a base 21 and a fifth limiting member 22. The base 21 is used to support the base 300 that cooperates with the pin 200; the fifth limiting member 22 is connected to the base 21 and at least partially located on the side of the base 300 away from the base 21.
[0062] Specifically, a receiving groove is provided on the base 21, and the base 300 is placed in the receiving groove. The fifth limiting member 22 can be a pressing block, and the pressing block can be detachably connected to the base 21 through components such as bolts. After the base 300 is placed inside the receiving groove, by installing the pressing block and making the pressing block at least partially located on the side of the base 300 away from the bottom of the receiving groove, the limiting of the base 300 is completed. Optionally, the pressing block at least partially abuts against the side of the base 300 away from the bottom of the receiving groove.
[0063] After the pin 200 is fixed, by assembling the first clamping fixture 1 and the second clamping fixture 2, the pin 200 fixed on the first clamping fixture 1 can be brought into contact with the base 300 fixed on the second clamping fixture 2. Finally, the pin 200 and the base 300 are sintered and fixed by a heating device.
[0064] As Figures 4 to 5 shown, in some embodiments, the fixture for pin sintering further includes a positioning member 5. The first limiting member 11 and the second limiting member 12 are connected by the positioning member 5, and a positioning portion 211 matching the positioning member 5 is provided on the second clamping fixture 2.
[0065] Specifically, the positioning member 5 can be a positioning pin that penetrates through the first limiting member 11 and the second limiting member 12. The positioning portion 211 can be a positioning hole provided on the base 21. After the pin 200 is clamped and fixed, by inserting the positioning member 5 into the corresponding positioning portion 211, the positioning and assembly between the first clamping fixture 1 and the second clamping fixture 2 can be quickly completed.
[0066] As Figures 4 to 5 shown, in some embodiments, the positioning member 5 penetrates through the third limiting member 13, and two second limiting portions 51 are provided on the positioning member 5, and the two second limiting portions 51 are respectively in contact with opposite sides of the third limiting member 13.
[0067] Specifically, the third limiting member 13 is provided with a through hole for the positioning member 5 to pass through, and the size of the through hole is larger than the size of the positioning member 5, so that even if the positioning member 5 penetrates through the third limiting member 13, the third limiting member 13 still has a certain amount of movement space to clamp and fix the pin 200 by moving.
[0068] The second limiting portion 51 can be a limiting protrusion, and the third limiting member 13 is limited by the limiting protrusion, so as to ensure that a proper distance is always maintained between the third limiting member 13, the first limiting member 11, and the second limiting member 12. Preferably, the distance between the third limiting member 13 and the first limiting member 11 is equal to the distance between the third limiting member 13 and the second limiting member 12, so that when the third limiting member 13 pushes the pin to move into contact with the hole walls of the first limiting hole 111 and the second limiting hole 121, the pressure received by the first limiting hole 111 is substantially equal to the pressure received by the second limiting hole 121.
Claims
1. A fixture for pin sintering, characterized in that: include: A first clamping fixture (1) comprising a first limiting member (11), a second limiting member (12) and a third limiting member (13); The first limiting member (11) is provided with a first limiting hole (111), and the second limiting member (12) is provided with a second limiting hole (121), wherein the first limiting hole (111) and the second limiting hole (121) are used for the pin (200) to pass through; The third limiting member (13) is arranged between the first limiting member (11) and the second limiting member (12), and is used to abut against one side of the pin (200), so that the other side of the pin (200) abuts against the side walls of the first limiting hole (111) and the second limiting hole (121).
2. The jig for pin sintering according to claim 1, characterized in that: The third limiting member (13) is provided with a third limiting hole (131) for the pin (200) to pass through, and the hole wall of the third limiting hole (131) is used to abut against the pin (200).
3. The jig for pin sintering according to claim 2, characterized in that: The first limiting member (11) is provided with at least one group of first limiting holes, the first limiting hole group comprising a plurality of the first limiting holes (111), the plurality of the first limiting holes (111) in the first limiting hole group all having the same third limiting hole (131) corresponding thereto, and the pins (200) passing through the plurality of the first limiting holes (111) in the same first limiting hole group can all pass through the corresponding third limiting holes (131).
4. The jig for pin sintering according to claim 1, wherein: The fixture for pin sintering also includes: A locking member (3) having a locked state and an unlocked state; In the locked state, the locking member (3) is used to lock at least one of the first limiting member (11) and the second limiting member (12) with the third limiting member (13); In the unlocked state, the third limiting member (13) is movable relative to the first limiting member (11) and the second limiting member (12).
5. The jig for pin sintering according to claim 1, wherein: The clamp for pin sintering further comprises an elastic member, which is respectively connected to the second limiting member (12) and the third limiting member (13), and the elastic member is used to drive the third limiting member (13) to move.
6. The jig for pin sintering according to claim 1, characterized in that: The clamp for pin sintering further comprises a fourth limiting member (4), wherein the fourth limiting member (4) is arranged on the second limiting member (12), and the third limiting member (13) is provided with a first limiting portion (132), wherein the first limiting portion (132) cooperates with the fourth limiting member (4) in limiting manner.
7. The jig for pin sintering according to claim 1, wherein: The fixture for pin sintering further comprises: a second clamping fixture (2); The second clamping tool (2) comprises: A base (21) for supporting a base (300) that matches the pin (200); A fifth limiting member (22) is connected to the base (21) and is at least partially located on a side of the base (300) facing away from the base (21).
8. The jig for pin sintering according to claim 7, wherein: The fixture for pin sintering also includes: A positioning member (5), wherein the first limiting member (11) and the second limiting member (12) are connected via the positioning member (5), and the second clamping jig (2) is provided with a positioning portion (211) that matches the positioning member (5).
9. The jig for pin sintering according to claim 8, wherein: The positioning member (5) penetrates through the third limiting member (13), and two second limiting portions (51) are provided on the positioning member (5), and the two second limiting portions (51) are respectively abutted against opposite sides of the third limiting member (13).