Riveting system for riveting PCI elastic piece and PCI fixing frame

Abstract

The invention provides a riveting system for riveting a PCI elastic piece and a PCI fixing frame, which comprises a base, a riveting lower die, a riveting upper die, an automatic material distributing device and a taking and placing mechanism, and is characterized in that the riveting lower die is arranged on the base; the riveting upper die is connected with the driving end of the press machine and located above the riveting lower die, and the riveting upper die is provided with a riveting punch. The automatic material distributing device is used for enabling the single PCI elastic pieces to fall into the position to be riveted. The taking and placing mechanism is arranged on the base and used for grabbing the automatic distributing device so that the automatic distributing device can be grabbed away from the position to be riveted after the automatic distributing device completes the blanking action of the single PCI elastic pieces, and an operation space is provided for the riveting punch to extrude the protrusion. The PCI elastic piece and PCI fixing frame alignment riveting device solves the problems that in the prior art, alignment riveting between a PCI elastic piece and a PCI fixing frame can only be achieved through cooperation of manual operation of an operator and extrusion of a press, the automation degree is low, the production efficiency is low, continuous production cannot be achieved, and consequently the overall efficiency is low.

Description

Technical Field

[0001] The present invention relates to the field of computer technology, and in particular to a riveting system for riveting a PCI spring sheet and a PCI fixing frame. Background Art

[0002] With the development of the Internet and big data, the use of servers is increasing, and the use of server chassis is becoming more and more extensive. Due to the large size and weight of the server chassis, and the need to place a large number of circuit boards inside the server chassis, the internal structural design of the server chassis becomes particularly important. The internal structural design of the server chassis is not only related to the structural stability of the server chassis, but also to the heat dissipation efficiency of the server chassis. The complexity of the internal structural design of the server chassis is also extremely large, and the types of structural parts inside the server chassis are also increasing.

[0003] There are many kinds of structural parts inside the server chassis. In the prior art, the PCI spring clip inside the server chassis is fixed by riveting two small round holes on the PCI spring clip with a protrusion of a sheet metal material on a PCI fixing frame. An operator manually takes the PCI spring clip and places the PCI spring clip on the PCI fixing frame, and manually aligns the two small round holes on the PCI spring clip with the protrusion on the PCI fixing frame, and then uses a press to squeeze the protrusion on the PCI fixing frame to complete the riveting operation.

[0004] However, since the external dimensions of the PCI spring are 22mm×6mm×0.3mm, that is, the PCI spring as a whole is a very light and small part, the operator needs to manually operate and squeeze with a press to achieve the alignment and riveting between the PCI spring and the PCI fixing frame. The degree of automation is low, and the production efficiency is low, and continuous production cannot be achieved, resulting in low overall efficiency. Summary of the invention

[0005] The main purpose of the present invention is to provide a riveting system for riveting a PCI spring piece and a PCI fixing frame, so as to solve the problem in the prior art that the operator has to manually operate and press the PCI spring piece to achieve the alignment riveting between the PCI spring piece and the PCI fixing frame, the degree of automation is low, the production efficiency is low, and continuous production cannot be achieved, resulting in low overall efficiency.

[0006] In order to achieve the above-mentioned purpose, the present invention provides a riveting system for riveting a PCI spring piece and a PCI fixing frame, comprising a base, a riveting lower die, a riveting upper die, an automatic material dividing device and a pick-and-place mechanism, wherein the riveting lower die is arranged on the base, and the riveting lower die has a supporting surface, and the supporting surface is used to carry the PCI fixing frame; the riveting upper die is connected to the driving end of the press and is located above the riveting lower die, and the riveting upper die has a riveting punch on the side facing the riveting lower die, and the riveting punch is used to squeeze the protrusion on the PCI fixing frame to increase the diameter of the protrusion and make it interfere with the riveting hole on the PCI spring piece. Cooperation; the automatic material dividing device has a storage cavity and an inlet and an outlet connected to the storage cavity, the storage cavity is used to store a plurality of stacked PCI springs, the outlet is used to align with the position to be riveted on the PCI fixing frame, and drop the single PCI spring located at the bottom of the plurality of stacked PCI springs into the position to be riveted; the pick-and-place mechanism is arranged on the base, the pick-and-place mechanism is used to grab the automatic material dividing device, so as to grab the automatic material dividing device away from the position to be riveted after the automatic material dividing device completes the dropping action of the single PCI spring, so as to provide an operating space for the riveting punch to extrude the protrusion.

[0007] In an exemplary embodiment, there are multiple automatic material dividing devices, and the riveting system further includes a first placement table and a second placement table. The first placement table is arranged on a base and is located downstream of the riveting lower die. The first placement table is used to place the automatic material dividing device that has completed the blanking action; the second placement table is arranged on the base and is located downstream of the first placement table. The second placement table is used to place the automatic material dividing device that is in a fully loaded state among the multiple automatic material dividing devices; wherein the riveting lower die, the first placement table, and the second placement table are all located on the moving path of the pick-and-place mechanism, and the pick-and-place mechanism is used to place the completed The automatic material dividing device that has completed the blanking action is grabbed by the riveting lower die and placed on the first placement table, and the pick-and-place mechanism is used to grab the automatic material dividing device on the first placement table again and place it on the PCI fixing frame to be riveted after completing the riveting operation of the PCI fixing frame and the PCI spring piece, so as to continue to blank the single PCI spring piece; when all the PCI spring pieces in the storage cavity of the automatic material dividing device have completed the blanking operation, the pick-and-place mechanism is used to grab the automatic material dividing device in a fully loaded state on the second placement table to the PCI fixing frame to be riveted for blanking operation.

[0008] In an exemplary embodiment, a first height H1 of the first placement table on the base, a second height H2 of the second placement table on the base, and a third height H3 of the riveting lower die on the base satisfy: H1 = H2 = H3.

[0009] In an exemplary embodiment, the riveting upper die includes a supporting top plate, a punch fixing plate and a riveting punch, wherein the supporting top plate has a first assembly hole, the supporting top plate is connected to the driving end through the first assembly hole; the punch fixing plate is connected to the supporting top plate; the first end of the riveting punch is connected to the punch fixing plate, and the second end of the riveting punch is used for extruding the protrusion.

[0010] In an exemplary embodiment, the riveting upper die also includes a punch stop plate and a fastener, wherein the punch stop plate has a second assembly hole and a third assembly hole, the punch stop plate is connected to the support top plate through the second assembly hole, and the punch fixing plate has a fourth assembly hole at a position opposite to the third assembly hole; the fastener passes through the third assembly hole and the fourth assembly hole to connect the punch stop plate and the punch fixing plate; wherein a fifth assembly hole is also provided on the punch fixing plate, and the riveting punch includes a connected assembly column section and a force rod section, and the cross-sectional area of ​​the cross-section of the assembly column section is larger than the cross-sectional area of ​​the cross-sectional area of ​​the force rod section, so that at least the assembly column section is located at the fifth assembly hole, and the end face of the assembly column section away from one end of the force rod section abuts against the surface of the punch stop plate facing the punch fixing plate, and the end of the force rod section away from the assembly column section is used for extruding the protrusion.

[0011] In one exemplary embodiment, a cross-sectional area of ​​a hole cross section of the third fitting hole is greater than a cross-sectional area of ​​a hole cross section of the fourth fitting hole.

[0012] In an exemplary embodiment, in the thickness direction of the supporting top plate, the outer contour line of the punch fixing plate coincides with the outer contour line of the punch stop plate, and the outer contour line of the supporting top plate is located outside the outer contour line of the punch stop plate.

[0013] In an exemplary embodiment, the PCI fixing frame has multiple groups of protrusion groups, each protrusion group has two protrusions, the automatic material dividing device blanks multiple PCI spring pieces at a time, the multiple PCI spring pieces correspond one-to-one to the multiple groups of protrusion groups, and the two rivet holes on each PCI spring piece are used to cooperate with the two protrusions in a group of protrusion groups; the riveting upper mold has multiple groups of riveting punch groups, the multiple groups of riveting punch groups correspond one-to-one to the multiple PCI spring pieces, and each riveting punch group includes two riveting punches, so that the two riveting punches in a group of riveting punch groups correspond to squeezing the two protrusions in a group of protrusion groups.

[0014] In an exemplary embodiment, the riveting upper die also includes an elastic rubber block, and there are multiple elastic rubber blocks, which correspond one by one to multiple groups of riveting punch groups. Each elastic rubber block is provided with two avoidance holes, and the two avoidance holes penetrate the two side end faces of the elastic rubber block in the thickness direction; the elastic rubber block is sleeved on two riveting punches in a group of riveting punch groups through the two avoidance holes, and the surface of the elastic rubber block on one side facing away from the punch fixing plate is higher than the riveting punch setting, so that before the riveting punch squeezes the protrusion and during the process of the riveting punch squeezing the protrusion, the elastic rubber block provides a clamping force for the PCI spring piece to prevent the PCI spring piece from being squeezed and deformed.

[0015] In an exemplary embodiment, the pick-and-place mechanism includes a robotic arm and a robotic hand, wherein the robotic arm is rotatably disposed on a base; the robotic hand is pivotally connected to one end of the robotic arm away from the base, and the end of the robotic hand away from the robotic arm has two clamping blocks, forming a clamping space between the two clamping blocks, and the two clamping blocks can move toward and away from each other to adjust the size of the clamping space.

[0016] By applying the technical solution of the present invention, a riveting system for riveting a PCI spring piece and a PCI fixing frame is provided, comprising a base, a riveting lower die, a riveting upper die, an automatic material dividing device and a pick-and-place mechanism, wherein the riveting lower die is arranged on the base, and the riveting lower die has a supporting surface, and the supporting surface is used to carry the PCI fixing frame; the riveting upper die is connected to the driving end of the press and is located above the riveting lower die, and the riveting upper die has a riveting punch on one side facing the riveting lower die, and the riveting punch is used to squeeze the protrusion on the PCI fixing frame to increase the diameter of the protrusion and make it interference fit with the riveting hole on the PCI spring piece The automatic material dividing device has a storage cavity and an inlet and an outlet communicated with the storage cavity, the storage cavity is used to store a plurality of stacked PCI springs, the outlet is used to align with the position to be riveted on the PCI fixing frame, and drop the single PCI spring at the bottom of the plurality of stacked PCI springs into the position to be riveted; the pick-and-place mechanism is arranged on the base, the pick-and-place mechanism is used to grab the automatic material dividing device, so as to grab the automatic material dividing device away from the position to be riveted after the automatic material dividing device completes the dropping action of the single PCI spring, so as to provide an operating space for the riveting punch to extrude the protrusion.

[0017] The riveting punch of the riveting upper die of the present application squeezes the protrusion on the PCI fixing frame, thereby increasing the diameter of the protrusion and making it interference fit with the rivet hole on the PCI spring sheet, thereby finally realizing the riveting of the PCI spring sheet and the PCI fixing frame; in addition, the automatic material dividing device can drop the single PCI spring sheet located at the bottom of the multiple stacked PCI spring sheets in the storage cavity into the position to be riveted, without the need for manual placement by the operator, thereby ensuring the placement accuracy of the PCI spring sheet; further, the picking and placing mechanism can grab the automatic material dividing device away from the position to be riveted after the automatic material dividing device completes the dropping action of the single PCI spring sheet, thereby providing operating space for the riveting punch to squeeze the protrusion, thereby ensuring the reliability of the riveting punch to squeeze the protrusion, and after completing the riveting operation of the PCI spring sheet and the PCI fixing frame, the picking and placing mechanism can grab the automatic material dividing device again and place it on the next PCI fixing frame that needs to be riveted, so as to repeat this cycle, thereby ensuring that the riveting system can operate continuously, thereby greatly improving the riveting efficiency of the riveting system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 A schematic structural diagram of a riveting system according to an optional embodiment of the present invention is shown;

[0020] Figure 2 Shows Figure 1 A schematic diagram of the structure of the riveting system in which the automatic material dividing device, the riveting upper die and the riveting lower die are omitted;

[0021] Figure 3 Shows Figure 1 A schematic diagram of the structure of the riveting upper die of the riveting system;

[0022] Figure 4 Shows Figure 3 A schematic diagram of the exploded structure of the riveting upper die of the riveting system;

[0023] Figure 5 Shows Figure 2 A schematic diagram of the structure when the PCI fixing frame and the PCI spring are in a riveted state;

[0024] Figure 6 Shows Figure 5 A schematic diagram of the structure when the PCI fixing frame and the PCI spring are in a separated state;

[0025] Figure 7 Shows Figure 1 Schematic diagram of the structure of the automatic material dividing device of the riveting system.

[0026] The above drawings include the following reference numerals:

[0027] 1. PCI fixing bracket; 101. protrusion; 2. PCI spring; 201. riveting hole;

[0028] 10. Base; 11. Bottom plate; 12. Heightening block; 13. Workbench;

[0029] 20. Rivet the lower die;

[0030] 30. Riveting upper die; 31. Riveting punch; 311. Assembly column section; 312. Force rod section; 32. Support top plate; 321. First assembly hole; 33. Punch fixing plate; 331. Fourth assembly hole; 332. Fifth assembly hole; 34. Punch stop plate; 341. Second assembly hole; 342. Third assembly hole; 35. Elastic rubber block; 351. Avoidance hole;

[0031] 40. Automatic material distribution device; 41. Discharge port;

[0032] 50. Pick-and-place mechanism; 51. Robotic arm; 52. Robotic hand; 521. Clamping block;

[0033] 60. First placement table; 70. Second placement table. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] In order to solve the problem in the prior art that the alignment and riveting between the PCI spring piece and the PCI fixing frame can only be achieved by operators manually operating in conjunction with a press, the degree of automation is low, the production efficiency is low, and continuous production cannot be achieved, resulting in overall low efficiency, the present invention provides a riveting system for riveting the PCI spring piece and the PCI fixing frame.

[0036] like Figures 1 to 7As shown, a riveting system for riveting a PCI spring and a PCI fixing frame comprises a base 10, a riveting lower die 20, a riveting upper die 30, an automatic material dividing device 40 and a pick-and-place mechanism 50, wherein the riveting lower die 20 is arranged on the base 10, and the riveting lower die 20 has a supporting surface, and the supporting surface is used to carry the PCI fixing frame 1; the riveting upper die 30 is connected to the driving end of the press and is located above the riveting lower die 20, and the riveting upper die 30 has a riveting punch 31 on the side facing the riveting lower die 20, and the riveting punch 31 is used to squeeze the protrusion 101 on the PCI fixing frame 1 to increase the diameter of the protrusion 101 and make it interference fit with the riveting hole 201 on the PCI spring 2. The automatic material dividing device 40 has a storage cavity and an inlet and an outlet 41 connected to the storage cavity, the storage cavity is used to store a plurality of stacked PCI springs 2, the outlet 41 is used to align with the position to be riveted on the PCI fixing frame 1, and drop the single PCI spring 2 located at the bottom of the plurality of stacked PCI springs 2 into the position to be riveted; the pick-up and placement mechanism 50 is arranged on the base 10, and the pick-up and placement mechanism 50 is used to grab the automatic material dividing device 40, so as to grab the automatic material dividing device 40 away from the position to be riveted after the automatic material dividing device 40 completes the dropping action of the single PCI spring 2, so as to provide an operating space for the riveting punch 31 to extrude the protrusion 101.

[0037] The riveting punch 31 of the riveting upper die 30 of the present application squeezes the protrusion 101 on the PCI fixing frame 1, thereby increasing the diameter of the protrusion 101 and making it interfere with the riveting hole 201 on the PCI spring piece 2, and finally realizing the riveting of the PCI spring piece 2 and the PCI fixing frame 1; in addition, the automatic material dividing device 40 can drop the single PCI spring piece 2 at the bottom of the multiple stacked PCI spring pieces 2 in the storage cavity into the position to be riveted, without the need for manual placement by the operator, thereby ensuring the placement accuracy of the PCI spring piece 2; further, the pick-up and placement mechanism 50 can After the automatic material dividing device 40 completes the blanking action of the single-piece PCI spring piece 2, the automatic material dividing device 40 is grabbed away from the position to be riveted, thereby providing an operating space for the riveting punch 31 to extrude the protrusion 101, ensuring the reliability of the riveting punch 31 extruding the protrusion 101. After completing the riveting operation of the PCI spring piece 2 and the PCI fixing frame 1, the pick-up and placement mechanism 50 can grab the automatic material dividing device 40 again and place it on the next PCI fixing frame 1 that needs to be riveted, so as to repeat the cycle, thereby ensuring that the riveting system can operate continuously, greatly improving the riveting efficiency of the riveting system.

[0038] It should be noted that in the present application, in order to ensure the riveting continuity of the riveting system, preferably, there are multiple automatic material dividing devices 40, and the riveting system further includes a first placement table 60 and a second placement table 70, wherein the first placement table 60 is arranged on the base 10 and is located downstream of the riveting lower die 20, and the first placement table 60 is used to place the automatic material dividing device 40 that completes the blanking action; the second placement table 70 is arranged on the base 10 and is located downstream of the first placement table 60, and the second placement table 70 is used to place the automatic material dividing device 40 in a fully loaded state among the multiple automatic material dividing devices 40; wherein the riveting lower die 20, the first placement table 60, and the second placement table 70 are all located on the pick-up and placement mechanism 5 0, the pick-and-place mechanism 50 is used to grab the automatic material distributor 40 that has completed the blanking action from the riveting lower die 20 to the first placement table 60, and the pick-and-place mechanism 50 is used to grab the automatic material distributor 40 on the first placement table 60 again and place it on the PCI fixing frame 1 to be riveted after completing the riveting operation of the PCI fixing frame 1 and the PCI spring piece 2, so as to continue to blank the single PCI spring piece 2; when all PCI spring pieces 2 in the storage cavity of the automatic material distributor 40 have completed the blanking operation, the pick-and-place mechanism 50 is used to grab the automatic material distributor 40 in a fully loaded state on the second placement table 70 to the PCI fixing frame 1 to be riveted for blanking. In this way, it is ensured that the riveting system can continue to perform the riveting operation uninterruptedly, which is conducive to improving the riveting efficiency of the riveting system.

[0039] It should be noted that in the present application, the first height H1 of the first placement table 60 on the base 10, the second height H2 of the second placement table 70 on the base 10, and the third height H3 of the riveting lower die 20 on the base 10 satisfy: H1=H2=H3. In this way, by optimizing the first height H1, the second height H2, and the third height H3, it is ensured that when the pick-up and place mechanism 50 grabs the automatic material dividing device 40 that has completed the blanking action from the riveting lower die 20 to the first placement table 60, it only needs to grab the automatic material dividing device 40 and then translate and rotate it to the first placement table 60, without any rising or falling action, thereby further improving the pick-up and place efficiency of the pick-up and place mechanism 50. Similarly, the automatic material dividing device 40 in a fully loaded state on the second placement table 70 is grabbed to the PCI fixing frame 1 to be riveted for blanking. During the material operation, the same translation and rotation can be used. In this process, the operator can remove the used automatic material dividing device 40 on the first placement table 60 in advance to facilitate the translation and rotation of the pick-and-place mechanism 50. Alternatively, when the operator does not remove the used automatic material dividing device 40 on the first placement table 60, the pick-and-place mechanism 50 can also generate an upward movement or the manipulator 52 of the pick-and-place mechanism 50 can rotate upward to complete the automatic material dividing device 40 in a fully loaded state on the second placement table 70 to be grabbed to the PCI fixing frame 1 to be riveted for blanking operation.

[0040] like Figure 3 and Figure 4 As shown, the riveting upper die 30 includes a supporting top plate 32, a punch fixing plate 33 and a riveting punch 31, wherein the supporting top plate 32 has a first assembly hole 321, and the supporting top plate 32 is connected to the driving end through the first assembly hole 321; the punch fixing plate 33 is connected to the supporting top plate 32; the first end of the riveting punch 31 is connected to the punch fixing plate 33, and the second end of the riveting punch 31 is used to squeeze the protrusion 101. In this way, by setting the riveting upper die 30 to include the supporting top plate 32, the punch fixing plate 33 and the riveting punch 31, the connection reliability of the riveting upper die 30 and the driving end of the press is ensured, as well as the connection reliability between the supporting top plate 32 and the punch fixing plate 33, and the stamping reliability of the riveting punch 31 are ensured.

[0041] like Figure 3 and Figure 4 As shown, the riveting upper die 30 also includes a punch stop plate 34 and a fastener, wherein the punch stop plate 34 has a second assembly hole 341 and a third assembly hole 342, the punch stop plate 34 is connected to the support top plate 32 through the second assembly hole 341, and the punch fixing plate 33 has a fourth assembly hole 331 at a position opposite to the third assembly hole 342; the fastener passes through the third assembly hole 342 and the fourth assembly hole 331 to connect the punch stop plate 34 and the punch fixing plate 33; wherein the punch fixing plate 33 is also provided with a There is a fifth assembly hole 332, and the riveting punch 31 includes an assembly column section 311 and a force rod section 312 connected to each other, and the cross-sectional area of ​​the cross section of the assembly column section 311 is larger than the cross-sectional area of ​​the cross section of the force rod section 312, so that at least the assembly column section 311 is located at the fifth assembly hole 332, and the end surface of the assembly column section 311 away from the force rod section 312 is in contact with the surface of the punch stop plate 34 facing the punch fixing plate 33, and the end of the force rod section 312 away from the assembly column section 311 is used to squeeze the protrusion 101. In this way, the arrangement of the punch stop plate 34, when the riveting punch 31 squeezes the protrusion 101, the punch stop plate 34 prevents the riveting punch 31 from retreating due to squeezing.

[0042] like Figure 4 As shown, the cross-sectional area of ​​the third assembly hole 342 is greater than the cross-sectional area of ​​the fourth assembly hole 331. In this way, the head of the fastener can be hidden in the third assembly hole 342, ensuring that the punch stop plate 34 can be fitted with the support top plate 32.

[0043] like Figure 3 and Figure 4As shown, in the thickness direction of the support top plate 32, the outer contour line of the punch fixing plate 33 coincides with the outer contour line of the punch stop plate 34, and the outer contour line of the support top plate 32 is located outside the outer contour line of the punch stop plate 34. In this way, the reliability of the connection between the riveting upper die 30 and the driving end of the press through the support top plate 32 is ensured.

[0044] like Figures 1 to 7 As shown, the PCI fixing frame 1 has multiple groups of protrusion groups, each of which has two protrusions 101, and the automatic material distribution device 40 blanks multiple PCI springs 2 at a time, and the multiple PCI springs 2 correspond to the multiple groups of protrusion groups one by one, and the two riveting holes 201 on each PCI spring 2 are used to cooperate with the two protrusions 101 in a group of protrusion groups; the riveting upper die 30 has multiple groups of riveting punch groups, and the multiple groups of riveting punch groups correspond to the multiple PCI springs 2 one by one, and each riveting punch group includes two riveting punches 31, so that the two riveting punches 31 in a group of riveting punch groups correspond to the two protrusions 101 in a group of protrusion groups. In this way, it is ensured that the riveting system provided by the present application can complete the riveting reliability of a PCI fixing frame 1 and four PCI springs at one time, and the riveting efficiency of the riveting system is greatly improved.

[0045] like Figure 3 and Figure 4 As shown, the riveting upper die 30 also includes an elastic rubber block 35, and there are multiple elastic rubber blocks 35, and the multiple elastic rubber blocks 35 correspond one-to-one to the multiple groups of riveting punch groups. Each elastic rubber block 35 is provided with two avoidance holes 351, and the two avoidance holes 351 penetrate the two side end faces of the elastic rubber block 35 in the thickness direction; the elastic rubber block 35 is sleeved on two riveting punches 31 in a group of riveting punch groups through the two avoidance holes 351, and the surface of the side of the elastic rubber block 35 away from the punch fixing plate 33 is higher than the riveting punch 31, so that before the riveting punch 31 squeezes the protrusion 101, and in the process of the riveting punch 31 squeezing the protrusion 101, the elastic rubber block 35 provides a clamping force for the PCI spring piece 2 to prevent the PCI spring piece 2 from being squeezed and deformed. In this way, the setting of the elastic rubber block 35 provides a pressing force for the PCI spring piece 2 before the riveting punch 31 squeezes the protrusion 101 and during the process of the riveting punch 31 squeezing the protrusion 101, thereby helping to prevent the PCI spring piece 2 from being squeezed and deformed.

[0046] It should be noted that, in the present application, the outer contour of the elastic rubber block 35 matches the outer contour of the PCI spring 2. In this way, the elastic rubber block 35 can exert force on the PCI spring 2 reliably, thereby ensuring that the deformation of the PCI spring 2 is as small as possible.

[0047] like Figure 1 and Figure 2As shown, the pick-and-place mechanism 50 includes a mechanical arm 51 and a manipulator 52, wherein the mechanical arm 51 is rotatably arranged on the base 10; the manipulator 52 is pivotally connected to the end of the mechanical arm 51 away from the base 10, and the end of the manipulator 52 away from the mechanical arm 51 has two clamping blocks 521, and a clamping space is formed between the two clamping blocks 521, and the two clamping blocks 521 can move toward and away from each other to adjust the size of the clamping space. In this way, by setting the pick-and-place mechanism 50 to include a mechanical arm 51 and a manipulator 52, the mechanical arm 51 can rotate in multiple directions, and the manipulator 52 can rotate in the vertical direction, thereby raising the height of the two clamping blocks 521.

[0048] Optionally, the robotic arm 51 includes a four-axis rotation joint and a plurality of connecting rods, so that the robotic arm 51 can rotate in multiple directions.

[0049] Optionally, the robot 52 includes a plurality of connecting rods and two clamping blocks 521 , and the automatic material dividing device 40 is clamped and released by sliding the two clamping blocks 521 on the track.

[0050] It should be noted that, in the present application, the automatic material dividing device 40 includes a storage module, a pushing module and a material dividing module, wherein the storage module has a storage cavity and an inlet and a first interface connected to the storage cavity, and the storage cavity is used to store a plurality of stacked PCI springs 2; the pushing module is elastically connected to the storage module, and the pushing module has an ejector structure, the ejector structure extends into the storage cavity from the inlet, and passes through the riveting holes 201 on each PCI spring 2 in turn, so that a plurality of PCI springs 2 are connected in series to the ejector structure; the material dividing module has a material dividing trough and a second interface and a discharge port 41 connected to the material dividing trough, and the material dividing module and the storage module are away from the pushing module. One side of the material dividing module is slidably connected, and the sliding direction of the material dividing module is perpendicular to the pushing direction of the pushing module, so that the material dividing module has a first position in which the second docking interface is aligned with the first docking interface, and the material dividing module has a second position in which the second docking interface is misaligned with the first docking interface; wherein, when the material dividing module is in the first position, a single PCI spring piece 2 located at the bottom of the multiple PCI spring pieces 2 in the storage cavity falls into the material dividing trough under the action of its own gravity; when the material dividing module is in the second position, the ejector pin structure passes through the first docking interface and extends into the material dividing trough through the second docking interface, so as to push the PCI spring piece 2 fallen into the material dividing trough from the discharge port 41 to the riveting station.

[0051] like Figure 1 As shown, the base 10 includes a bottom plate 11, a raising block 12, and a workbench 13. The bottom plate 11 is located at the bottom, the raising block 12 is vertically arranged on the bottom plate 11, the workbench 13 is supported and arranged on the raising block 12, the riveting lower mold 20, the first placement table 60, and the second placement table 70 are all arranged on the workbench 13, and the pick-and-place mechanism 50 is arranged on the bottom plate 11.

[0052] The riveting punch 31 of the riveting upper die 30 of the present application squeezes the protrusion 101 on the PCI fixing frame 1, thereby increasing the diameter of the protrusion 101 and making it interfere with the riveting hole 201 on the PCI spring piece 2, and finally realizing the riveting of the PCI spring piece 2 and the PCI fixing frame 1; in addition, the automatic material dividing device 40 can drop the single PCI spring piece 2 at the bottom of the multiple stacked PCI spring pieces 2 in the storage cavity into the position to be riveted, without the need for manual placement by the operator, thereby ensuring the placement accuracy of the PCI spring piece 2; further, the pick-up and placement mechanism 50 can After the automatic material dividing device 40 completes the blanking action of the single-piece PCI spring piece 2, the automatic material dividing device 40 is grabbed away from the position to be riveted, thereby providing an operating space for the riveting punch 31 to extrude the protrusion 101, ensuring the reliability of the riveting punch 31 extruding the protrusion 101. After completing the riveting operation of the PCI spring piece 2 and the PCI fixing frame 1, the pick-up and placement mechanism 50 can grab the automatic material dividing device 40 again and place it on the next PCI fixing frame 1 that needs to be riveted, so as to repeat the cycle, thereby ensuring that the riveting system can operate continuously, greatly improving the riveting efficiency of the riveting system.

[0053] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0054] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0055] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0056] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0057] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A riveting system for riveting a PCI spring and a PCI fixing frame, characterized in that: include: Base (10); A riveting lower die (20), the riveting lower die (20) being arranged on the base (10), the riveting lower die (20) having a supporting surface, the supporting surface being used to bear the PCI fixing frame (1); A riveting upper die (30), the riveting upper die (30) being connected to the driving end of the press and being located above the riveting lower die (20), the riveting upper die (30) having a riveting punch (31) on the side facing the riveting lower die (20), the riveting punch (31) being used to squeeze the protrusion (101) on the PCI fixing frame (1) to increase the diameter of the protrusion (101) and make it interference fit with the riveting hole (201) on the PCI spring sheet (2); An automatic material distribution device (40), the automatic material distribution device (40) comprising a storage cavity and an inlet and an outlet (41) communicated with the storage cavity, the storage cavity being used to store a plurality of stacked PCI spring sheets (2), the outlet (41) being used to align with a position to be riveted on the PCI fixing frame (1), and to drop a single PCI spring sheet (2) located at the bottom of the plurality of stacked PCI spring sheets (2) into the position to be riveted; A pick-and-place mechanism (50) is arranged on the base (10), and the pick-and-place mechanism (50) is used to grab the automatic material dividing device (40) so that after the automatic material dividing device (40) completes the blanking action of the single PCI spring sheet (2), the automatic material dividing device (40) is grabbed away from the riveting position to provide an operating space for the riveting punch (31) to squeeze the protrusion (101).

2. The riveting system according to claim 1, characterized in that: The automatic material dividing device (40) is multiple, and the riveting system further includes: A first placement platform (60), the first placement platform (60) being arranged on the base (10) and located downstream of the riveting lower die (20), the first placement platform (60) being used to place the automatic material dividing device (40) that has completed the blanking action; a second placement table (70), the second placement table (70) being arranged on the base (10) and located downstream of the first placement table (60), the second placement table (70) being used to place the automatic material distributing devices (40) in a fully loaded state among the plurality of the automatic material distributing devices (40); The riveting lower die (20), the first placement table (60), and the second placement table (70) are all located on the moving path of the pick-and-place mechanism (50); the pick-and-place mechanism (50) is used to grab the automatic material dividing device (40) that has completed the blanking action from the riveting lower die (20) to the first placement table (60); and the pick-and-place mechanism (50) is used to grab the automatic material dividing device (40) on the first placement table (60) again and place it on the PCI fixing frame (1) to be riveted after completing the riveting operation of the PCI fixing frame (1) and the PCI spring sheet (2), so as to continue the blanking of the single PCI spring sheet (2); When all the PCI spring pieces (2) in the storage cavity of the automatic material distributing device (40) have completed the blanking operation, the pick-up and placement mechanism (50) is used to grab the automatic material distributing device (40) in a fully loaded state on the second placement table (70) to the PCI fixing frame (1) to be riveted for blanking operation.

3. The riveting system according to claim 2, characterized in that: A first height H1 of the first placement platform (60) on the base (10), a second height H2 of the second placement platform (70) on the base (10), and a third height H3 of the riveting lower die (20) on the base (10) satisfy the following: H1=H2=H3.

4. The riveting system according to claim 1, characterized in that: The riveting upper die (30) comprises: A supporting top plate (32), wherein the supporting top plate (32) has a first assembly hole (321), and the supporting top plate (32) is connected to the driving end through the first assembly hole (321); A punch fixing plate (33), wherein the punch fixing plate (33) is connected to the supporting top plate (32); The riveting punch (31), the first end of the riveting punch (31) is connected to the punch fixing plate (33), and the second end of the riveting punch (31) is used to squeeze the protrusion (101).

5. The riveting system according to claim 4, characterized in that: The riveting upper die (30) further comprises: a punch stop plate (34), the punch stop plate (34) having a second assembly hole (341) and a third assembly hole (342), the punch stop plate (34) being connected to the support top plate (32) via the second assembly hole (341), and the punch fixing plate (33) having a fourth assembly hole (331) at a position opposite to the third assembly hole (342); A fastener, the fastener passing through the third assembly hole (342) and the fourth assembly hole (331) to connect the punch stop plate (34) and the punch fixing plate (33); The punch fixing plate (33) is also provided with a fifth assembly hole (332), the riveting punch (31) comprises an assembly column section (311) and a force rod section (312) connected to each other, and the cross-sectional area of ​​the cross section of the assembly column section (311) is larger than the cross-sectional area of ​​the cross section of the force rod section (312), so that at least the assembly column section (311) is located at the fifth assembly hole (332), the end surface of the assembly column section (311) away from the force rod section (312) is in contact with the surface of the punch stop plate (34) facing the punch fixing plate (33), and the end of the force rod section (312) away from the assembly column section (311) is used to squeeze the protrusion (101).

6. The riveting system according to claim 5, characterized in that: The cross-sectional area of ​​the hole cross section of the third assembly hole (342) is greater than the cross-sectional area of ​​the hole cross section of the fourth assembly hole (331).

7. The riveting system according to claim 5, characterized in that: In the thickness direction of the support top plate (32), the outer contour line of the punch fixing plate (33) coincides with the outer contour line of the punch stop plate (34), and the outer contour line of the support top plate (32) is located outside the outer contour line of the punch stop plate (34).

8. The riveting system according to claim 5, characterized in that: The PCI fixing frame (1) has a plurality of protrusion groups, each of the protrusion groups has two protrusions (101), the automatic material distribution device (40) blanks a plurality of the PCI spring sheets (2) at a time, the plurality of the PCI spring sheets (2) correspond one to one with the plurality of the protrusion groups, and the two riveting holes (201) on each of the PCI spring sheets (2) are used to cooperate with the two protrusions (101) in one group of the protrusion groups; The riveting upper die (30) has a plurality of riveting punch groups, the plurality of riveting punch groups corresponding one-to-one to the plurality of PCI spring sheets (2), and each of the riveting punch groups includes two riveting punches (31), so that the two riveting punches (31) in one group of the riveting punch groups correspond to the two protrusions (101) in one group of the protrusion groups.

9. The riveting system according to claim 8, characterized in that: The riveting upper die (30) further comprises: Elastic rubber blocks (35), the elastic rubber blocks (35) are multiple, the multiple elastic rubber blocks (35) correspond one-to-one to the multiple groups of riveting punch groups, each of the elastic rubber blocks (35) is provided with two avoidance holes (351), and the two avoidance holes (351) penetrate the two side end surfaces of the elastic rubber block (35) in the thickness direction; The elastic rubber block (35) is sleeved on two of the riveting punches (31) in a group of the riveting punch groups through the two avoidance holes (351), and a surface of the elastic rubber block (35) on one side facing away from the punch fixing plate (33) is arranged higher than the riveting punch (31), so that before the riveting punch (31) squeezes the protrusion (101) and during the process of the riveting punch (31) squeezing the protrusion (101), the elastic rubber block (35) provides a pressing force for the PCI spring sheet (2) to prevent the PCI spring sheet (2) from being squeezed and deformed.

10. The riveting system according to claim 1, characterized in that: The pick-and-place mechanism (50) comprises: A mechanical arm (51), the mechanical arm (51) being rotatably arranged on the base (10); A manipulator (52), the manipulator (52) being pivotally connected to one end of the manipulator arm (51) away from the base (10), and the manipulator (52) having two clamping blocks (521) at one end away from the manipulator arm (51), a clamping space being formed between the two clamping blocks (521), and the two clamping blocks (521) being able to move toward and away from each other to adjust the size of the clamping space.

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