Device for riveting PIN from top to bottom

Abstract

The utility model discloses a device for riveting PINs from top to bottom, which enables the PINs to be reliably and automatically fed and ensures the production efficiency. The utility model relates to a material belt continuous interval riveting device which is used for continuous interval riveting operation of material belts and comprises an edge-deviated feeder which comprises a stock bin and a conveying material channel, PINs are placed in the stock bin, and the edge-deviated feeder feeds the PINs in the stock bin into a PIN conveying track of the conveying material channel in sequence; the switching table is provided with a first PIN slide way, a PIN pushing air cylinder and a material blowing air channel, and the PIN pushing air cylinder drives the PINs to move from the feeding station to the discharging station along an output port of the first PIN slide way; the upper surface of the PIN feeding workbench comprises a second PIN slide way and PIN feeding air channels on the two sides. The stamping part comprises an upper punch assembly and a lower die assembly, the upper punch assembly comprises a punch press stamping knife and a riveting punch, and the riveting punch is connected with the punch press stamping knife and is arranged in a downward protruding mode.

Description

Technical Field

[0001] The invention relates to the technical field of PIN assembly, in particular to a device for riveting a PIN from top to bottom. Background Art

[0002] When assembling a mechanical structure, it is necessary to rivet PINs at intervals on the surface of a long strip of material. The existing technology requires manual feeding of PINs one by one. During actual assembly, material shortage is prone to occur, which leads to the need for subsequent rework or scrapping of the material strip. Therefore, it is necessary to develop a riveting device that automatically feeds PINs. Summary of the invention

[0003] In view of the above problems, the present invention provides a PIN riveting device from top to bottom, which enables reliable and automatic PIN feeding and ensures production efficiency.

[0004] A top-down riveting PIN device, which is used for continuous interval riveting of material strips, is characterized in that it includes:

[0005] An offset feeder includes a silo and a conveying channel. PINs are placed in the silo. The offset feeder sequentially feeds the PINs in the silo into a PIN conveying track of the conveying channel.

[0006] A switching table is provided with a first PIN slideway, a PIN pushing cylinder, and a blowing air channel, wherein the PIN pushing cylinder drives the PIN to move from the loading station to the unloading station along the output port of the first PIN slideway;

[0007] A PIN delivery workbench, the upper surface of which includes a second PIN slideway and PIN delivery air channels on both sides, PIN delivery air channels are respectively arranged on both sides of the second PIN slideway, each group of PIN delivery air channels is connected to the second PIN slideway through a plurality of groups of oblique channels, each group of PIN delivery air channels is connected to an external air source, the end of the PIN delivery workbench corresponding to the second slideway is a PIN placing station, and the PIN delivery workbench is provided with rivet PIN sliders on both sides corresponding to the PIN placing station, the cavity formed by the combination of the rivet PIN sliders on both sides is used for positioning and placing the PIN, and the rivet PIN sliders on both sides are respectively provided with linear springs on the outside, and the rivet PIN sliders on each side are embedded in the corresponding linear moving groove;

[0008] and a stamping part, which includes an upper punch assembly and a lower die assembly, wherein the upper punch assembly includes a punch cutter and a riveting punch, wherein the riveting punch is connected to the punch cutter and arranged convexly, and the lower die assembly includes a lower die seat, wherein a material belt conveying channel is arranged on the lower die seat, and a lower die riveting insert is arranged on the material belt conveying channel corresponding to the riveting punch directly below the riveting punch;

[0009] The output end of the conveying channel is connected to the first PIN slideway;

[0010] The feeding end of the PIN feeding workbench extends to the switching table, and the conveying interval between the PIN feeding workbench and the output end of the first PIN slide is the distance of one PIN, and the conveying interval is the PIN feeding switching channel. The PIN pushing cylinder pushes the PIN along the PIN feeding switching channel to move to the small material station, and the end of the blowing air channel away from the second PIN slide is externally connected to a blowing device, and the blowing air channel blows the PIN at the feeding station into the second PIN slide and moves toward the PIN placing station.

[0011] It is further characterized by:

[0012] The facing surfaces of the rivet PIN sliders on both sides are guiding inclined surfaces that expand from bottom to top. The riveting punch punches downward to drive the PIN to move toward each other and then push the rivet PIN sliders on both sides to move to both sides. When the punching is completed, the riveting punch retracts upward, and the rivet PIN sliders on both sides are reset under the drive of the linear spring to position the next PIN.

[0013] The piston end of the push pin cylinder is provided with a push head, and the width of the push head is arranged in the shape of the conveying interval to ensure that the linear movement of the push head is stable and reliable;

[0014] The blowing air channel and the second PIN slide are arranged at intervals on the same straight line to ensure that the PIN at the unloading station can be reliably blown into the feeding end of the second PIN slide.

[0015] After the present invention is adopted, the PIN enters the first PIN slideway after being screened by the offset feeder and entering the conveying material channel, and then the PIN advances along the first PIN slideway. When a single PIN slides into the loading station at the output port of the first PIN slideway, due to the distance limitation, the loading station is in a saturated state, and the PIN pushing cylinder pushes the PIN to move along the PIN feeding switching material channel to the feeding station (the PIN pushing cylinder is reset after a set interval after being sent), and then the blowing air channel blows the PIN into the second PIN slideway, and the PIN is blown to the PIN placing station along the second slideway through the PIN feeding air channel and the oblique channel. The cavity formed by the combination of the riveting PIN sliders on both sides is used to position and place the PIN, and then after the material belt steps into place and stops, the punching knife drives the riveting punch to press down, thereby making the riveting PIN slider expand outward on both sides, and the PIN is driven by the riveting punch to press down into the corresponding position of the material belt, and then the riveting punch rises, and the riveting PIN sliders on both sides are reset, and then the PIN feeding, material belt feeding, and stamping and riveting actions are repeated; it enables the PIN to be reliably and automatically fed, and ensures production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the main structure of the present invention;

[0017] Figure 2 for Figure 1 A partial enlarged schematic diagram of

[0018] Figure 3 It is a schematic diagram of the top view structure of the present invention;

[0019] Figure 4 for Figure 3 A partial enlarged schematic diagram

[0020] The names corresponding to the serial numbers in the figure are as follows:

[0021] Offset feeder 10, silo 11, conveying channel 12, switching table 20, first PIN slide 21, PIN pushing cylinder 22, pushing head 221, blowing air channel 23, loading station 201, unloading station 202, PIN 30, PIN feeding worktable 40, second PIN slide 41, PIN feeding air channel 42, oblique channel 43, joint 44, PIN placing station 401, rivet PIN slider 50, cavity 51, guide slope 501, linear spring 60, stamping part 70, upper punch assembly 80, punching knife 81, riveting punch 82, lower lower die assembly 90, lower die seat 91, material belt conveying channel 92, lower die riveting insert 93, PIN feeding switching channel 100, material belt 110. DETAILED DESCRIPTION

[0022] A PIN riveting device from top to bottom, which is used for continuous interval riveting operation of material strip 110, see Figure 1-Figure 4 , which includes an offset feeder 10, a switching table 20, a PIN feeding table 40, and a stamping part 70;

[0023] The offset feeder 10 includes a silo 11 and a conveying channel 12. PINs are placed in the silo 10. The offset feeder 10 sequentially feeds the PINs in the silo 11 into the PIN conveying track of the conveying channel 12.

[0024] The switch table 20 is provided with a first PIN slideway 21, a PIN push cylinder 22, and a blowing airway 23. The PIN push cylinder 23 drives the PIN 30 to move from the loading station 201 to the unloading station 202 along the output port of the first PIN slideway 21;

[0025] The upper surface of the PIN delivery workbench 40 includes a second PIN slideway 41 and PIN delivery air channels 42 on both sides. The PIN delivery air channels 42 are respectively arranged on both sides of the second PIN slideway 41. Each group of PIN delivery air channels 42 is connected to the second PIN slideway 41 through a plurality of groups of oblique channels 43. The oblique channels 43 transport the PINs toward the rear. Each group of PIN delivery air channels 42 is connected to an external air source through a joint 44. The end of the PIN delivery workbench 40 corresponding to the second PIN slideway 41 is a PIN placement station 401. The PIN delivery workbench 40 is provided with rivet PIN sliders 50 at both sides of the PIN delivery workbench 40 corresponding to the PIN placement station 401. The cavity 51 formed by the combination of the rivet PIN sliders 50 on both sides is used to position and place the PIN 30, and the rivet PIN sliders 50 on both sides are respectively provided with linear springs 60. The rivet PIN sliders 50 on each side are embedded in the corresponding linear moving groove (which is an existing mature technology and not shown in the figure).

[0026] The stamping part 70 includes an upper punch assembly 80 and a lower die assembly 90. The upper punch assembly 80 includes a punch cutter 81 and a riveting punch 82. The riveting punch 82 is connected to the punch cutter 81 and is arranged convexly downward. The lower die assembly 90 includes a lower die seat 91. A material belt conveying channel 92 is provided on the lower die seat 91. A lower die riveting insert 93 is provided on the material belt conveying channel 92 corresponding to the riveting punch 82 directly below the riveting punch 82.

[0027] The output end of the conveying channel 12 is connected to the first PIN slideway 21;

[0028] The feeding end of the PIN feeding workbench 40 extends to the switching table 20, and the conveying interval between the PIN feeding workbench 40 and the output end of the first PIN slide 21 is the distance of one PIN, and the conveying interval is the PIN feeding switching channel 100. The PIN pushing cylinder 22 pushes the PIN 30 along the PIN feeding switching channel 100 to the unloading station 202. The end of the blowing air channel 23 away from the second PIN slide 41 is externally connected to a blowing device. The blowing air channel 23 blows the PIN 30 at the unloading station 202 into the second PIN slide 41 and moves toward the PIN placing station 401.

[0029] In a specific implementation, the facing surfaces of the rivet PIN sliders 50 on both sides are guiding inclined surfaces 501 expanding from bottom to top, and the riveting punch 82 punches downward to drive the PIN 30 to move downward in parallel, thereby pushing the rivet PIN sliders 50 on both sides to move to both sides. After the punching is completed, the riveting punch 82 retracts upward, and the rivet PIN sliders 50 on both sides are reset under the drive of the linear spring 60 to position the next PIN 30;

[0030] The piston end of the push pin cylinder 22 is provided with a push head 221, and the width of the push head 221 is arranged in the shape of the conveying interval to ensure that the linear movement of the push head 221 is stable and reliable;

[0031] The blowing air channel 23 and the second PIN slideway 41 are arranged at intervals on the same straight line to ensure that the PIN at the unloading station can be reliably blown into the feeding end of the second PIN slideway 41.

[0032] Its working principle is as follows: after the PIN is screened by the offset feeder and enters the PIN conveying track, it enters the first PIN slideway, and then the PIN moves along the first PIN slideway. When a single PIN slides into the loading station at the output port of the first PIN slideway, the loading station is in a saturated state due to the distance limitation. The PIN push cylinder pushes the PIN along the PIN switching channel to move to the feeding station (the PIN push cylinder resets after the set interval after it is sent). Then the blowing air channel blows the PIN into the second PIN slideway, and the PIN is pushed through the PIN feeding air channel and the oblique channel. It is blown along the second slide to the PIN placing station. The cavity formed by the combination of the rivet PIN sliders on both sides is used to position and place the PIN. After the material strip steps into place and stops, the punch cutter of the punch press drives the riveting punch to press down, thereby making the rivet PIN slider expand outward on both sides. The PIN is driven by the riveting punch to press down into the corresponding position of the material strip. After that, the riveting punch rises, and the rivet PIN sliders on both sides are reset. Then the PIN feeding, material strip feeding, and stamping and riveting actions are repeated. Through the continuous conveying of the material strip and the single PIN feeding, the PIN can be reliably and automatically fed, ensuring production efficiency.

[0033] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0034] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A top-down riveting PIN device, which is used for continuous interval riveting of material strips, characterized in that: It includes: An offset feeder includes a silo and a conveying channel. PINs are placed in the silo. The offset feeder sequentially feeds the PINs in the silo into a PIN conveying track of the conveying channel. A switching table is provided with a first PIN slideway, a PIN pushing cylinder, and a blowing air channel, wherein the PIN pushing cylinder drives the PIN to move from the loading station to the unloading station along the output port of the first PIN slideway; A PIN delivery workbench, the upper surface of which includes a second PIN slideway and PIN delivery air channels on both sides, PIN delivery air channels are respectively arranged on both sides of the second PIN slideway, each group of PIN delivery air channels is connected to the second PIN slideway through a plurality of groups of oblique channels, each group of PIN delivery air channels is connected to an external air source, the end of the PIN delivery workbench corresponding to the second slideway is a PIN placing station, and the PIN delivery workbench is provided with rivet PIN sliders on both sides corresponding to the PIN placing station, the cavity formed by the combination of the rivet PIN sliders on both sides is used for positioning and placing the PIN, and the rivet PIN sliders on both sides are respectively provided with linear springs on the outside, and the rivet PIN sliders on each side are embedded in the corresponding linear moving groove; and a stamping part, which includes an upper punch assembly and a lower die assembly, wherein the upper punch assembly includes a punch cutter and a riveting punch, wherein the riveting punch is connected to the punch cutter and arranged convexly, and the lower die assembly includes a lower die seat, wherein a material belt conveying channel is arranged on the lower die seat, and a lower die riveting insert is arranged on the material belt conveying channel corresponding to the riveting punch directly below the riveting punch; The output end of the conveying channel is connected to the first PIN slideway; The feeding end of the PIN feeding workbench extends to the switching table, and the conveying interval between the PIN feeding workbench and the output end of the first PIN slide is the distance of one PIN, and the conveying interval is the PIN feeding switching channel. The PIN pushing cylinder pushes the PIN along the PIN feeding switching channel to move to the small material station, and the end of the blowing air channel away from the second PIN slide is externally connected to a blowing device, and the blowing air channel blows the PIN at the feeding station into the second PIN slide and moves toward the PIN placing station.

2. The top-down PIN riveting device according to claim 1, characterized in that: The facing surfaces of the rivet PIN sliders on both sides are guiding inclined surfaces that expand from bottom to top. The riveting punch punches downward to drive the PIN to face each other and then push the rivet PIN sliders on both sides to move to both sides. When the punching is completed, the riveting punch retracts upward, and the rivet PIN sliders on both sides are reset under the drive of the linear spring to position the next PIN.

3. The top-down PIN riveting device according to claim 1, characterized in that: The piston end of the push pin cylinder is provided with a push head, and the width of the push head is arranged in the shape of the conveying interval.

4. The top-down PIN riveting device according to claim 1, characterized in that: The blowing air channel and the second PIN slideway are arranged at intervals on the same straight line.

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