Nut drilling equipment

Abstract

The present invention relates to the technical field of nut processing, and in particular to a nut drilling device, comprising a processing table, the top of which is rotatably connected to a mounting disk, a first motor is fixedly mounted on the top surface inside the processing table, an output shaft of the first motor passes through the processing table and extends to the top of the processing table and is fixedly connected to the bottom axis of the mounting disk, a mounting ring is fixedly connected to the side of the mounting disk, and a plurality of rectangular grooves are provided on the top of the mounting ring in a circular array; the present invention absorbs and collects material chips during the process of drilling holes and threading the nuts, thereby achieving early separation of the nuts and material chips, reducing subsequent steps of separating the nuts and material chips, and facilitating improving the processing efficiency of the nuts.

Description

Technical Field

[0001] The invention relates to the technical field of nut processing, and in particular to a nut drilling device. Background Art

[0002] Nuts are parts that tightly connect mechanical equipment. They are threadedly connected to bolts through the inner threads. Only nuts and bolts of the same specifications can be connected together. The working principle of nuts is to use the friction between the nuts and bolts for self-locking; however, the reliability of this self-locking will be reduced under dynamic loads; in some important occasions, we will take some anti-loosening measures to ensure the reliability of nut locking.

[0003] The prior art discloses some patent documents related to the field of nut processing technology. A Chinese invention patent with publication number CN112893918B discloses a rotary drilling machine with automatic discharging for embedded nut processing, including a support plate, a first motor fixedly connected between the front and back sides of the inner wall of the second support frame, and a rotating disk fixedly connected to the output end of the first motor, a placement groove being provided on the edge of the rotating disk, and limit grooves connected to the placement grooves being provided on both sides of the rotating disk.

[0004] The prior art usually achieves continuous drilling and unloading of nuts by opening a plurality of placement grooves on the surface of a rotating disk and rotating the rotating disk. When the nuts are processed, a large amount of drilling chips will be generated during the drilling process. If the drilling chips are not processed in time and accumulate in the placement grooves, the drilling effect of the nuts will be affected. Moreover, when the nuts are rotated and unloaded, the generated drilling chips will be dumped out together with the nuts, thereby increasing the subsequent separation steps of the nuts and the chips, affecting the processing efficiency of the nuts. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a nut drilling device.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: a nut drilling device, comprising a processing table, the top of the processing table is rotatably connected to a mounting plate, a first motor is fixedly installed on the top surface inside the processing table, the output shaft of the first motor passes through the processing table and extends to the top of the processing table and is fixedly connected to the bottom axis of the mounting plate, and a mounting ring is fixedly connected to the side of the mounting plate;

[0007] The top of the mounting ring is provided with a plurality of rectangular grooves in a circumferential array, the bottom of the mounting ring is provided with a plurality of through holes in a circumferential array, the through holes are respectively connected with the corresponding rectangular grooves, a first support seat is fixedly connected to the side of the processing table, a first mounting plate is fixedly connected to the top of the first support seat, a drill is provided on one side of the first mounting plate, a threaded drill bit is fixedly connected to the output end of the drill bit, and a boring drill bit is fixedly connected to the bottom end of the threaded drill bit;

[0008] A vertical lifting mechanism is connected between the first mounting plate and the drilling rig, a nut positioning mechanism is connected between the first supporting seat and the mounting ring, a chip adsorption mechanism is connected to the drilling rig, and a discharge mechanism is connected to the side of the processing table.

[0009] Preferably, the nut positioning mechanism includes two first arc-shaped strips and multiple groups of clamping blocks, the number of the clamping blocks in each group is two, and the clamping blocks in each group are respectively arranged inside the corresponding rectangular grooves, and the adjacent sides of the two clamping blocks in the same group are provided with clamping inclined surfaces, and the two sides of the rectangular grooves are provided with strip grooves, and the insides of the strip grooves are provided with limit pins, and the tops of the strip grooves are fixedly connected with blocking strips, and the two sides of the clamping blocks are fixedly connected with connecting rings, and the connecting rings are respectively slidably inserted on the corresponding limit pins, and the surfaces of the limit pins are sleeved with first springs, The two ends of the first spring are respectively fixedly connected to the corresponding connecting rings, two movable grooves are provided at both ends of the bottom of the rectangular groove, the bottom of the clamping block is fixedly connected with a U-shaped bar, the two ends of the U-shaped bar are respectively located inside the corresponding movable grooves, the bottom of the U-shaped bar is located below the mounting ring, the bottom of the U-shaped bar is fixedly connected with a first circular pin, the two first arc-shaped bars are fixedly connected to the top of the first support seat, the two first arc-shaped bars are coaxially arranged with the mounting ring, and the two ends of the adjacent sides of the two first arc-shaped bars are provided with guiding inclined surfaces.

[0010] Preferably, the vertical lifting mechanism includes a slide rail and a mounting block, the slide rail is fixedly connected to one side of the first mounting plate, the mounting block is fixedly connected to one side of the drilling rig, a slide groove is provided on one side of the mounting block, the slide rail and the slide groove are slidably connected, a first hydraulic cylinder is fixedly installed on one side of the first mounting plate, and the piston shaft of the first hydraulic cylinder is fixedly connected to the bottom of the mounting block.

[0011] Preferably, the material chip adsorption mechanism includes a fixed shell and a connecting tube, the fixed shell is fixedly connected to the bottom of the drilling rig, the internal sliding sleeve of the fixed shell is provided with a movable ring, the movable ring is located above the mounting ring, both sides of the fixed shell and the movable ring are fixedly connected with fixed plates, and the corresponding two fixed plates are fixedly connected with a gas spring, the fixed shell is fixedly installed with a first vacuum cleaner, the air inlet end of the first vacuum cleaner is fixedly connected to the fixed shell, the connecting tube is fixedly connected to the top of the first support seat, the connecting tube is located below the mounting ring, the second vacuum cleaner is fixedly installed inside the first support seat, the air inlet end of the second vacuum cleaner passes through the first support seat and extends to the top of the first support seat and is fixedly connected to the bottom of the connecting tube, and the movable ring and the connecting tube are both connected with a rolling contact mechanism.

[0012] Preferably, the rolling contact mechanism includes a plurality of support blocks, and the plurality of support blocks are respectively fixedly connected to the movable ring and one end of the connecting tube close to the mounting ring, and the support blocks are each provided with a spherical groove, and balls are rollingly connected inside the spherical groove, and the balls are in contact with the surface of the mounting ring.

[0013] Preferably, the unloading mechanism includes a second supporting seat, the second supporting seat is fixedly connected to the side of the processing table, the top of the second supporting seat is fixedly connected to the second mounting plate, the second mounting plate is provided with a connecting groove, the interior of the connecting groove is slidably connected with a sliding block, a second hydraulic cylinder is fixedly installed on one side of the second mounting plate, the piston shaft of the second hydraulic cylinder is fixedly connected to the bottom of the sliding block, a connecting plate is provided on one side of the sliding block, two first connecting pins are fixedly connected to the connecting plate, the first connecting pins are slidably inserted on the sliding block, a second motor is fixedly installed on the top of the connecting plate, the output shaft of the second motor passes through the connecting plate and extends to the bottom of the connecting plate and is fixedly connected with a threaded pin, a U-shaped guide strip is provided at the bottom of the connecting plate, and a give way strip is provided on the U-shaped guide strip The second circular pins are respectively connected to the connecting plate and the connecting plate, and the second circular pins are respectively located in the corresponding guide frames, and the guide frames include an inclined section and a vertical section, and the vertical section is located above the mounting ring, and one side of the second mounting plate is fixedly connected to a material receiving shell, and the material receiving shell is located below the inclined section.

[0014] Preferably, a plug-in strip is fixedly connected to one side of the second mounting plate, two third connecting pins are slidably inserted on the plug-in strip, the top ends of the two third connecting pins are commonly fixedly connected to the mounting strip, the top of the mounting strip is fixedly connected to a second arc strip, the two second arc strips are coaxially arranged with the mounting ring, both ends of the adjacent sides of the two second arc strips are provided with guiding inclined surfaces, the third connecting pins are both sleeved with a third spring, the two ends of the third spring are respectively fixedly connected to the mounting strip and the plug-in strip, and one side of the connecting plate is fixedly connected to an extrusion strip, and the extrusion strip is located above the mounting strip.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The chips generated during nut processing are adsorbed and collected by the chip adsorption mechanism to reduce the impact of the chips on the nut processing process. Then, the drill is returned to the initial position by the vertical lifting mechanism, and the mounting ring drives the nut to continue to rotate. Finally, the nut is taken out from the corresponding rectangular groove and collected by the unloading mechanism, thereby realizing continuous processing of the nut. In addition, the chips are adsorbed and collected during the process of drilling and threading the nut, thereby realizing early separation of the nut and the chips, reducing the subsequent separation steps of the nut and the chips, and helping to improve the processing efficiency of the nut.

[0017] 2. Through the guiding effect of the guiding inclined surface on the first arc-shaped bar, the two first circular pins are moved to the adjacent side of the two first arc-shaped bars, so that the two U-shaped bars are close to each other along the movable groove, and the two clamping blocks are driven to approach each other. The connecting rings on both sides of the clamping blocks move synchronously and squeeze the first spring to produce compression deformation. When the two clamping blocks are close to each other, the clamping inclined surfaces on the adjacent side of the two clamping blocks continue to limit the side of the nut, so that the nut is clamped and fixed when it moves to the bottom of the drilling rig, thereby improving the stability during the processing.

[0018] 3. By connecting the first vacuum cleaner and the fixed shell, the chips generated by the boring drill bit when drilling a hole on the nut surface are adsorbed and collected by the negative pressure generated by the first vacuum cleaner. When the boring drill bit drills through the nut and moves toward the inside of the connecting tube along the through hole, the chips that penetrate the nut and fall downward enter the inside of the connecting tube along the through hole and are adsorbed and collected by the second vacuum cleaner, thereby effectively collecting the chips generated during drilling and threading, and reducing the impact of scattered chips on nut processing.

[0019] 4. During the return process, the threaded pin takes the nut away from the rectangular groove through the threaded connection and is located above the material receiving shell. Finally, the output shaft of the second motor rotates in the opposite direction and the U-shaped guide bar limits the rotation of the nut, so that the nut is detached from the threaded pin under the action of the thread and finally falls into the material receiving shell for collection. The threaded pin and the processed nut are threadedly connected and unloaded and collected. During the unloading process, the threaded hole inside the nut is tested and connected, which reduces the subsequent test steps and improves the efficiency of nut processing.

[0020] 5. When the threaded pin is threadedly connected with the threaded hole on the nut and the connecting plate continues to move downward, one end of the extrusion strip on the connecting plate squeezes the mounting strip, so that the mounting strip drives the two third connecting pins to move downward along the sliding connection of the plug-in strip, and squeezes the third spring to produce compression deformation, so that the second arc strip moves downward synchronously with the mounting strip and releases the guiding and limiting effect on the first circular pin, so that the two clamping blocks are separated from the clamping and limiting effect on the nut, ensuring that the nut can be separated from the rectangular groove along with the threaded pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a first structural schematic diagram of the present invention;

[0022] Figure 2 For the present invention Figure 1 A schematic diagram of the structure enlargement at point A;

[0023] Figure 3 For the present invention Figure 1 A schematic diagram of the structure at B in FIG.

[0024] Figure 4 For the present invention Figure 1 A schematic diagram of the structure at position C in FIG.

[0025] Figure 5 It is a second structural schematic diagram of the present invention;

[0026] Figure 6 For the present invention Figure 5 A schematic diagram of the structure at D in FIG.

[0027] Figure 7 For the present invention Figure 5 A schematic diagram of the structure at position E in FIG.

[0028] Figure 8 For the present invention Figure 7 A magnified schematic diagram of the structure at F in FIG.

[0029] Fig. 9 It is a third structural schematic diagram of the present invention;

[0030] Fig.10 For the present invention Fig. 9 A schematic diagram of the structure at G in FIG.

[0031] Fig.11 For the present invention Fig. 9 A schematic diagram of the structure at H in FIG.

[0032] Fig.12 It is a schematic diagram of the mounting ring structure of the present invention;

[0033] Fig.13 For the present invention Fig.12 A schematic diagram of the structure at position I in FIG.

[0034] Fig.14 It is a schematic diagram of the matching structure of the clamping block, the U-shaped bar and the first circular pin of the present invention;

[0035] Fig.15 It is a schematic diagram of the matching structure of the drilling machine, threaded drill bit and boring drill bit of the present invention (the fixed housing and the movable ring are cut);

[0036] Fig.16 For the present invention Fig.15 Schematic diagram of the enlarged structure at position J in FIG.

[0037] In the figure: 1, processing table; 2, mounting plate; 3, first motor; 4, mounting ring; 5, rectangular groove; 6, through hole; 7, first support seat; 8, first mounting plate; 9, drilling machine; 10, threaded drill bit; 11, boring drill bit; 12, first arc strip; 13, clamping block; 14, strip groove; 15, limit pin; 16, shielding strip; 17, connecting ring; 18, first spring; 19, movable groove; 20, U-shaped strip; 21, first circular pin; 22, slide rail; 23, mounting block; 24, slide groove; 25, first hydraulic cylinder; 26, fixed shell; 27, connecting tube; 28, movable ring; 29, fixed plate; 30, gas spring; 31, first vacuum cleaner; 32 , second vacuum cleaner; 33, support block; 34, spherical groove; 35, ball; 36, second support seat; 37, second mounting plate; 38, connecting groove; 39, slider; 40, second hydraulic cylinder; 41, connecting plate; 42, first connecting pin; 43, second motor; 44, threaded pin; 45, U-shaped guide strip; 46, clearance hole; 47, fixing strip; 48, second connecting pin; 49, second spring; 50, second circular pin; 51, guide frame; 5101, inclined section; 5102, vertical section; 52, material receiving shell; 53, plug-in strip; 54, third connecting pin; 55, mounting strip; 56, second arc strip; 57, third spring; 58, extrusion strip. DETAILED DESCRIPTION

[0038] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0039] like Figures 1 to 16 A nut drilling device shown in the figure comprises a processing table 1, a mounting plate 2 is rotatably connected to the top of the processing table 1, a first motor 3 is fixedly installed on the top surface inside the processing table 1, an output shaft of the first motor 3 passes through the processing table 1 and extends to the top of the processing table 1 and is fixedly connected to the bottom axis of the mounting plate 2, and a mounting ring 4 is fixedly connected to the side of the mounting plate 2;

[0040] The top of the mounting ring 4 is provided with a plurality of rectangular grooves 5 in a circumferential array, and the bottom of the mounting ring 4 is provided with a plurality of through holes 6 in a circumferential array, and the through holes 6 are respectively connected with the corresponding rectangular grooves 5. A first support seat 7 is fixedly connected to the side of the processing table 1, and a first mounting plate 8 is fixedly connected to the top of the first support seat 7. A drill 9 is arranged on one side of the first mounting plate 8, and a threaded drill bit 10 is fixedly connected to the output end of the drill 9, and a boring drill bit 11 is fixedly connected to the bottom end of the threaded drill bit 10;

[0041] A vertical lifting mechanism is connected between the first mounting plate 8 and the drilling machine 9, a nut positioning mechanism is connected between the first support seat 7 and the mounting ring 4, a chip adsorption mechanism is connected to the drilling machine 9, and a discharge mechanism is connected to the side of the processing table 1; when working, the prior art usually achieves continuous drilling and unloading of nuts by opening a plurality of placement grooves on the surface of the rotating disk, and realizes continuous drilling and unloading of nuts by rotating the rotating disk. When processing the nuts, a large amount of drilling chips will be generated during the drilling process. If the drilling chips are not processed in time and accumulate in the placement grooves, the drilling effect of the nuts will be affected, and when the nuts are rotated and unloaded, the generated drilling chips will be dumped out together with the nuts, thereby increasing the subsequent separation steps of the nuts and chips, affecting the processing efficiency of the nuts; the technical solution can solve the above problems, and the specific working method is as follows: the nuts to be processed are placed in the rectangular groove 5 corresponding to the top of the mounting ring 4 in sequence, and the mounting disk 2 is driven by the output shaft of the first motor 3 to perform periodic intermittent rotation, thereby driving the mounting ring 4 to rotate synchronously, and when the nuts to be processed rotate to the bottom of the drilling machine 9 with the mounting ring 4 The nut under the drill 9 is clamped and positioned by the nut positioning mechanism, and the drill 9 is moved vertically downward by the vertical lifting mechanism. The output end of the drill 9 drives the threaded drill bit 10 and the boring drill bit 11 to rotate. The boring drill bit 11 rotates and drills the nut when it contacts the top of the nut, and after penetrating the nut, the threaded drill bit 10 continues to open threads on the inner wall of the aperture, so that a connecting thread is generated on the surface of the hole wall drilled on the nut. In the process of processing the nut, the drill 9 adsorbs and collects the chips generated during the nut processing by the chip adsorption mechanism, reducing the influence of the chips on the nut processing process. Then, the drill 9 returns to the initial position by the vertical lifting mechanism, and then the mounting ring 4 drives the nut to continue to rotate. Finally, the nut is taken out from the corresponding rectangular groove 5 and collected by the unloading mechanism, thereby realizing continuous processing of the nut, and in the process of drilling and threading the nut, the chips are adsorbed and collected, thereby realizing early separation of the nut and the chips, reducing the subsequent separation steps of the nut and the chips, which is conducive to improving the processing efficiency of the nut.

[0042] As a further implementation scheme of the present invention, the nut positioning mechanism includes two first arc-shaped strips 12 and multiple groups of clamping blocks 13, each group of clamping blocks 13 has two, each group of clamping blocks 13 is respectively arranged inside the corresponding rectangular groove 5, and the adjacent sides of the two clamping blocks 13 in the same group are provided with clamping inclined surfaces, both sides of the rectangular groove 5 are provided with strip grooves 14, and the inside of the strip grooves 14 are provided with limit pins 15, and the tops of the strip grooves 14 are fixedly connected with shielding strips 16, and both sides of the clamping blocks 13 are fixedly connected with connecting rings 17, and the connecting rings 17 are respectively slidably inserted in On the corresponding limit pin 15, the surface of the limit pin 15 is sleeved with a first spring 18, and the two ends of the first spring 18 are respectively fixedly connected to the corresponding connecting ring 17. Two movable grooves 19 are provided at both ends of the bottom of the rectangular groove 5. The bottom of the clamping block 13 is fixedly connected with a U-shaped bar 20, and the two ends of the U-shaped bar 20 are respectively located inside the corresponding movable groove 19. The bottom of the U-shaped bar 20 is located below the mounting ring 4. The bottom of the U-shaped bar 20 is fixedly connected with a first circular pin 21. The two first arc-shaped bars 12 are fixedly connected to the top of the first support seat 7. The two first arcs The U-shaped strip 12 is coaxially arranged with the mounting ring 4, and both ends of the adjacent sides of the two first arc-shaped strips 12 are provided with guiding inclined surfaces; when working, the nut to be processed is placed inside the rectangular groove 5, and the nut is located between the two clamping blocks 13, and the connecting rings 17 at both ends are squeezed by the elastic action of the first spring 18, so that the two clamping blocks 13 are separated from each other, and when the corresponding rectangular groove 5 rotates toward the bottom of the drilling rig 9, the first circular pins 21 at the bottom of the two U-shaped strips 20 contact and squeeze with one end of the corresponding first arc-shaped strip 12 during the rotation process, and through the first arc-shaped strip 12 on the The guiding effect of the guiding slope causes the two first circular pins 21 to move to the adjacent side of the two first arc-shaped strips 12, so that the two U-shaped strips 20 are close to each other along the movable groove 19, and drive the two clamping blocks 13 to approach each other, and the connecting rings 17 on both sides of the clamping blocks 13 move synchronously and squeeze the first spring 18 to produce compression deformation. When the two clamping blocks 13 are close to each other, the clamping slopes on the adjacent side of the two clamping blocks 13 continue to limit the clamping of the side of the nut, so that the nut is clamped and fixed when it moves to the bottom of the drilling rig 9, thereby improving the stability during the processing.

[0043] As a further implementation scheme of the present invention, the vertical lifting mechanism includes a slide rail 22 and a mounting block 23. The slide rail 22 is fixedly connected to one side of the first mounting plate 8, and the mounting block 23 is fixedly connected to one side of the drilling rig 9. A slide groove 24 is provided on one side of the mounting block 23. The slide rail 22 and the slide groove 24 are slidably connected. A first hydraulic cylinder 25 is fixedly installed on one side of the first mounting plate 8, and the piston shaft of the first hydraulic cylinder 25 is fixedly connected to the bottom of the mounting block 23. When working, the piston shaft of the first hydraulic cylinder 25 moves vertically downward, driving the mounting block 23 to move downward. The mounting block 23 is limited in movement through the sliding connection between the slide rail 22 and the slide groove 24, and the drilling rig 9 moves downward synchronously with the mounting block 23. When the piston shaft of the first hydraulic cylinder 25 moves in the opposite direction, the drilling rig 9 moves upward vertically synchronously.

[0044] As a further embodiment of the present invention, the chip adsorption mechanism includes a fixed shell 26 and a connecting tube 27. The fixed shell 26 is fixedly connected to the bottom of the drilling rig 9. The internal sliding sleeve of the fixed shell 26 is provided with a movable ring 28. The movable ring 28 is located above the mounting ring 4. Both sides of the fixed shell 26 and the movable ring 28 are fixedly connected with fixed plates 29. A gas spring 30 is fixedly connected between the corresponding two fixed plates 29. A first dust collector 31 is fixedly installed on the fixed shell 26. The air inlet end of the first dust collector 31 is fixedly connected to the fixed shell 26. The connecting tube 27 is fixedly connected to the top of the first support seat 7. The connecting tube 27 is located below the mounting ring 4. A second dust collector 32 is fixedly installed inside the first support seat 7. The air inlet end of the second dust collector 32 passes through the first support seat 7 and extends to the top of the first support seat 7 and is fixedly connected to the bottom of the connecting tube 27. The movable ring 28 and the connecting tube 27 are both connected with rolling couplings. When the nut to be processed rotates to the bottom of the drill 9, the drill 9 moves vertically downward and drills the nut through the boring drill bit 11. During the downward movement of the drill 9, the fixed shell 26 moves downward synchronously, causing the movable ring 28 to move relatively toward the inside of the fixed shell 26, and synchronously squeezes the gas spring 30 to generate compression, so that the movable ring 28 makes way as the drill 9 moves. Through the connection between the first vacuum cleaner 31 and the fixed shell 26, the chips generated by the boring drill bit 11 drilling the nut surface are adsorbed and collected by the negative pressure generated by the first vacuum cleaner 31. When the boring drill bit 11 drills through the nut and moves along the through hole 6 to the inside of the connecting tube 27, the chips that penetrate the nut and fall downward enter the inside of the connecting tube 27 along the through hole 6 and are adsorbed and collected by the second vacuum cleaner 32, thereby effectively collecting the chips generated during drilling and threading, and reducing the impact of chip scattering on nut processing.

[0045] As a further implementation scheme of the present invention, the rolling contact mechanism includes a plurality of support blocks 33, and the plurality of support blocks 33 are respectively fixedly connected to the movable ring 28 and one end of the connecting tube 27 close to the mounting ring 4, and a spherical groove 34 is opened on the support block 33, and a ball 35 is rollingly connected inside the spherical groove 34, and the ball 35 is in contact with the surface of the mounting ring 4; when working, the ball 35 contacts the mounting ring 4, and during the rotation of the mounting ring 4, the friction generated during the contact process is reduced through the rolling action of the ball 35 and the contact surface, and air is introduced into the interior through the gap between the ball 35 and the movable ring 28 and one end of the connecting tube 27, so as to ensure that continuous air intake during the chip adsorption process generates a negative pressure adsorption effect.

[0046] As a further embodiment of the present invention, the unloading mechanism includes a second support seat 36, which is fixedly connected to the side of the processing table 1, and a second mounting plate 37 is fixedly connected to the top of the second support seat 36. A connecting groove 38 is provided on the second mounting plate 37, and a slider 39 is slidably connected inside the connecting groove 38. A second hydraulic cylinder 40 is fixedly installed on one side of the second mounting plate 37, and the piston shaft of the second hydraulic cylinder 40 is fixedly connected to the bottom of the slider 39. A connecting plate 41 is provided on one side of the slider 39, and two first connecting pins 42 are fixedly connected to the connecting plate 41. The first connecting pins 42 are slidably inserted on the slider 39, and a second motor 43 is fixedly installed on the top of the connecting plate 41. The output shaft of the second motor 43 passes through the connecting plate 41 and extends to the bottom of the connecting plate 41 and is fixedly connected to a threaded pin 44, and a U-shaped guide strip 45 is provided below the connecting plate 41. The U-shaped guide strip 45 is provided with a guide pin for allowing The U-shaped guide strip 45 is fixedly connected to the positioning hole 46, and one end of the threaded pin 44 extends along the positioning hole 46 to the inside of the U-shaped guide strip 45. Both sides of the U-shaped guide strip 45 are fixedly connected with a fixing strip 47. The top of the fixing strip 47 is fixedly connected with a second connecting pin 48. The second connecting pin 48 is slidably inserted on the connecting plate 41. A second spring 49 is sleeved on the second connecting pin 48. The two ends of the second spring 49 are respectively fixedly connected to the connecting plate 41 and the corresponding fixing strip 47. Both sides of the connecting plate 41 are fixedly connected with a second circular pin 50. One side of the second mounting plate 37 close to the mounting ring 4 is fixedly connected with two guide frames 51. The second circular pin 50 is respectively located in the corresponding guide frames 51. The guide frame 51 includes an inclined section 5101 and a vertical section 5102. The vertical section 5102 is located above the mounting ring 4. One side of the second mounting plate 37 is fixedly connected with a material receiving shell 52, and the material receiving shell 52 is located below the inclined section 5101.During operation, after the nut is drilled and threaded, as the mounting ring 4 rotates to one side of the second mounting plate 37, the piston shaft of the second hydraulic cylinder 40 drives the slider 39 to move vertically downward along the connecting groove 38, and the slider 39 drives the connecting plate 41 to move downward synchronously through the first connecting pin 42. During the downward movement of the connecting plate 41, the second circular pins 50 on both sides first move along the inclined section 5101 of the guide frame 51, so that the connecting plate 41 moves laterally toward the mounting ring 4 during the downward movement, and during the lateral movement of the connecting plate 41, the second connecting pin 48 moves along the sliding insertion part of the slider 39. When the second circular pin 50 moves along the inclined section 5101 to the vertical section 5102, the connecting plate 41 is located directly above the corresponding nut, and when the second circular pin 50 moves vertically downward along the vertical section 5102, the two ends of the U-shaped guide strip 45 first move into the rectangular groove 5 and limit the two parallel sides of the nut, and then the connecting plate 41 continues to move downward so that one end of the threaded pin 44 is threaded toward the inside of the nut. The threaded pin 44 moves in the hole, and the output shaft of the second motor 43 drives the threaded pin 44 to rotate, so that the threaded pin 44 and the threaded hole inside the nut are threadedly connected. When the threaded pin 44 moves downward, the fixed bars 47 on both sides of the U-shaped guide bar 45 drive the second connecting pin 48 to move along the sliding plug-in part of the connecting plate 41, and squeeze the second spring 49 to produce compression deformation, so that the U-shaped guide bar 45 gives way, and then the piston shaft of the second hydraulic cylinder 40 moves in the opposite direction, so that the connecting plate 41 returns to the initial position. During the return process, the threaded pin 44 takes the nut away from the rectangular groove 5 through the threaded connection effect, and is located above the material receiving housing 52. Finally, the output shaft of the second motor 43 rotates in the opposite direction, and the nut is restricted from rotating through the U-shaped guide bar 45, so that the nut is separated from the threaded pin 44 under the action of the thread, and finally falls into the inside of the material receiving housing 52 for collection, and the threaded connection between the threaded pin 44 and the processed nut is carried out for unloading and collection. During the unloading process, the threaded hole inside the nut is tested and connected, which reduces the subsequent test steps and improves the efficiency of nut processing. ;

[0047] As a further implementation scheme of the present invention, a plug-in strip 53 is fixedly connected to one side of the second mounting plate 37, and two third connecting pins 54 are slidably inserted on the plug-in strip 53. The top ends of the two third connecting pins 54 are commonly fixedly connected to a mounting strip 55, and a second arc-shaped strip 56 is fixedly connected to the top of the mounting strip 55. The two second arc-shaped strips 56 are coaxially arranged with the mounting ring 4, and both ends of the adjacent sides of the two second arc-shaped strips 56 are provided with guiding inclined surfaces. The third connecting pins 54 are sleeved with third springs 57, and the two ends of the third springs 57 are respectively fixedly connected to the mounting strip 55 and the plug-in strip 53. One side of the connecting plate 41 is fixedly connected to an extrusion strip 58, and the extrusion strip 58 is located above the mounting strip 55. During operation, when the two first circular pins 21 move to the adjacent side of the two second arc-shaped strips 56, the nuts are clamped and positioned by the two clamping blocks 13, and the U-shaped guide strip 45 is When moving into the rectangular groove 5, both ends of the U-shaped guide strip 45 are located between the two clamping blocks 13, and the first circular pin 21 is guided and limited by the second arc strip 56 to ensure that the nut is located at the center position of the rectangular groove 5, so that the threaded pin 44 and the threaded hole on the nut are accurately connected. When the threaded pin 44 is threadedly connected with the threaded hole on the nut and continues to move downward on the connecting plate 41, one end of the extrusion strip 58 on the connecting plate 41 squeezes the mounting strip 55, so that the mounting strip 55 drives the two third connecting pins 54 to move downward along the sliding connection of the plug-in strip 53, and squeezes the third spring 57 to produce compression deformation, so that the second arc strip 56 moves downward synchronously with the mounting strip 55 and releases the guiding and limiting effect on the first circular pin 21, so that the two clamping blocks 13 are separated from the clamping and limiting effect on the nut, ensuring that the nut can be separated from the rectangular groove 5 along with the threaded pin 44.

[0048] Working principle of the present invention:

[0049] The nuts to be processed are sequentially placed in the rectangular groove 5 corresponding to the top of the mounting ring 4, and the mounting plate 2 is driven to rotate periodically and intermittently through the output shaft of the first motor 3, thereby driving the mounting ring 4 to rotate synchronously. When the nut to be processed rotates to the bottom of the drill 9 along with the mounting ring 4, the nut under the drill 9 is clamped and positioned by the action of the nut positioning mechanism, and the drill 9 is moved vertically downward by the action of the vertical lifting mechanism. The output end of the drill 9 drives the threaded drill bit 10 and the boring drill bit 11 to rotate. The boring drill bit 11 rotates and drills the nut when it contacts the top of the nut, and after penetrating the nut, the threaded drill bit 10 continues to open threads on the inner wall of the aperture, so that the nut is drilled. A connecting thread is produced on the surface of the hole wall. During the process of machining the nut, the drill 9 absorbs and collects the chips generated during the machining of the nut through the chip adsorption mechanism, thereby reducing the influence of the chips on the machining process of the nut. Then, the drill 9 returns to the initial position through the action of the vertical lifting mechanism, and then the mounting ring 4 drives the nut to continue to rotate. Finally, the nut is taken out from the corresponding rectangular groove 5 and collected through the action of the unloading mechanism, thereby realizing continuous machining of the nut. In addition, in the process of drilling and threading the nut, the chips are adsorbed and collected, thereby realizing early separation of the nut and the chips, reducing the subsequent separation steps of the nut and the chips, and being beneficial to improving the machining efficiency of the nut.

[0050] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may have various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention to be protected, and the scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A nut drilling device, comprising a processing table (1), characterized in that: The top of the processing table (1) is rotatably connected to a mounting plate (2); a first motor (3) is fixedly mounted on the top surface of the processing table (1); an output shaft of the first motor (3) passes through the processing table (1) and extends to the top of the processing table (1) and is then fixedly connected to the bottom axis of the mounting plate (2); a mounting ring (4) is fixedly connected to the side of the mounting plate (2); The top of the mounting ring (4) is provided with a plurality of rectangular grooves (5) in a circumferential array, the bottom of the mounting ring (4) is provided with a plurality of through holes (6) in a circumferential array, the through holes (6) are respectively connected to the corresponding rectangular grooves (5), a first support seat (7) is fixedly connected to the side of the processing table (1), a first mounting plate (8) is fixedly connected to the top of the first support seat (7), a drilling machine (9) is arranged on one side of the first mounting plate (8), a threaded drill bit (10) is fixedly connected to the output end of the drilling machine (9), and a boring drill bit (11) is fixedly connected to the bottom end of the threaded drill bit (10); A vertical lifting mechanism is connected between the first mounting plate (8) and the drilling machine (9), a nut positioning mechanism is connected between the first support seat (7) and the mounting ring (4), a chip adsorption mechanism is connected to the drilling machine (9), and a discharge mechanism is connected to the side of the processing table (1); The nut positioning mechanism comprises two first arc-shaped strips (12) and a plurality of groups of clamping blocks (13), each group of the clamping blocks (13) comprises two clamping blocks (13), each group of the clamping blocks (13) is respectively arranged inside the corresponding rectangular groove (5), and the adjacent sides of the two clamping blocks (13) in the same group are provided with clamping inclined surfaces, both sides of the rectangular groove (5) are provided with strip grooves (14), the inside of the strip grooves (14) are provided with limit pins (15), the tops of the strip grooves (14) are fixedly connected with shielding strips (16), both sides of the clamping blocks (13) are fixedly connected with connecting rings (17), the connecting rings (17) are respectively slidably inserted on the corresponding limit pins (15), and the surfaces of the limit pins (15) are sleeved with first springs (18). , the two ends of the first spring (18) are respectively fixedly connected to the corresponding connecting ring (17), the two ends of the bottom of the rectangular groove (5) are provided with two movable grooves (19), the bottom of the clamping block (13) is fixedly connected with a U-shaped bar (20), the two ends of the U-shaped bar (20) are respectively located inside the corresponding movable groove (19), the bottom of the U-shaped bar (20) is located below the mounting ring (4), the bottom of the U-shaped bar (20) is fixedly connected with a first circular pin (21), the two first arc-shaped bars (12) are fixedly connected to the top of the first support seat (7), the two first arc-shaped bars (12) are coaxially arranged with the mounting ring (4), and the two ends of the adjacent sides of the two first arc-shaped bars (12) are provided with guiding inclined surfaces; The unloading mechanism comprises a second support seat (36), the second support seat (36) is fixedly connected to the side of the processing table (1), the top of the second support seat (36) is fixedly connected to a second mounting plate (37), the second mounting plate (37) is provided with a connecting groove (38), the interior of the connecting groove (38) is slidably connected to a slider (39), a second hydraulic cylinder (40) is fixedly mounted on one side of the second mounting plate (37), the piston shaft of the second hydraulic cylinder (40) is fixedly connected to the bottom of the slider (39), and one side of the slider (39) is provided with a A connecting plate (41) is provided, and two first connecting pins (42) are fixedly connected to the connecting plate (41), and the first connecting pins (42) are slidably inserted on the sliding block (39). A second motor (43) is fixedly installed on the top of the connecting plate (41), and an output shaft of the second motor (43) passes through the connecting plate (41) and extends to the bottom of the connecting plate (41) and is fixedly connected to a threaded pin (44). A U-shaped guide bar (45) is provided below the connecting plate (41), and a clearance hole (46) is opened on the U-shaped guide bar (45). The threaded pin (44) is fixedly connected to the connecting plate (41). One end of the U-shaped guide bar (44) extends along the clearance hole (46) to the inside of the U-shaped guide bar (45), and both sides of the U-shaped guide bar (45) are fixedly connected with a fixing bar (47), and the top of the fixing bar (47) is fixedly connected with a second connecting pin (48), and the second connecting pin (48) is slidably inserted on the connecting plate (41), and a second spring (49) is sleeved on the second connecting pin (48), and both ends of the second spring (49) are fixedly connected to the connecting plate (41) and the corresponding fixing bar (47), and both sides of the connecting plate (41) are fixedly connected to the fixing bar (47). A second circular pin (50) is fixedly connected thereto; two guide frames (51) are fixedly connected to one side of the second mounting plate (37) close to the mounting ring (4); the second circular pins (50) are respectively located inside the corresponding guide frames (51); the guide frames (51) comprise an inclined section (5101) and a vertical section (5102); the vertical section (5102) is located above the mounting ring (4); a material receiving shell (52) is fixedly connected to one side of the second mounting plate (37); the material receiving shell (52) is located below the inclined section (5101).

2. A nut drilling device according to claim 1, characterized in that: The vertical lifting mechanism comprises a slide rail (22) and a mounting block (23); the slide rail (22) is fixedly connected to one side of the first mounting plate (8); the mounting block (23) is fixedly connected to one side of the drilling rig (9); a slide groove (24) is provided on one side of the mounting block (23); the slide rail (22) and the slide groove (24) are slidably connected; a first hydraulic cylinder (25) is fixedly mounted on one side of the first mounting plate (8); and a piston shaft of the first hydraulic cylinder (25) is fixedly connected to the bottom of the mounting block (23).

3. A nut drilling device according to claim 1, characterized in that: The chip suction mechanism comprises a fixed shell (26) and a connecting tube (27); the fixed shell (26) is fixedly connected to the bottom of the drilling rig (9); an internal sliding sleeve of the fixed shell (26) is provided with a movable ring (28); the movable ring (28) is located above the mounting ring (4); both sides of the fixed shell (26) and the movable ring (28) are fixedly connected to fixed plates (29); a gas spring (30) is fixedly connected between the two corresponding fixed plates (29); a first dust collector (31) is fixedly installed on the fixed shell (26); and the first dust collector (31) is fixedly mounted on the fixed shell (26). The air inlet end of the dust collector (31) is fixedly connected to the fixed shell (26), the connecting tube (27) is fixedly connected to the top of the first support seat (7), the connecting tube (27) is located below the mounting ring (4), a second dust collector (32) is fixedly installed inside the first support seat (7), the air inlet end of the second dust collector (32) passes through the first support seat (7) and extends to the top of the first support seat (7) and is fixedly connected to the bottom of the connecting tube (27), and the movable ring (28) and the connecting tube (27) are both connected to a rolling contact mechanism.

4. A nut drilling device according to claim 3, characterized in that: The rolling contact mechanism comprises a plurality of support blocks (33), wherein the plurality of support blocks (33) are respectively fixedly connected to the movable ring (28) and one end of the connecting tube (27) close to the mounting ring (4), and each of the support blocks (33) is provided with a spherical groove (34), and a ball (35) is rollingly connected inside the spherical groove (34), and each of the balls (35) is in contact with the surface of the mounting ring (4).

5. A nut drilling device according to claim 4, characterized in that: A plug-in strip (53) is fixedly connected to one side of the second mounting plate (37), two third connecting pins (54) are slidably inserted on the plug-in strip (53), the top ends of the two third connecting pins (54) are fixedly connected to a mounting strip (55), the top of the mounting strip (55) is fixedly connected to a second arc strip (56), the two second arc strips (56) are coaxially arranged with the mounting ring (4), both ends of the adjacent sides of the two second arc strips (56) are provided with guiding inclined surfaces, the third connecting pins (54) are sleeved with a third spring (57), the two ends of the third spring (57) are respectively fixedly connected to the mounting strip (55) and the plug-in strip (53), and one side of the connecting plate (41) is fixedly connected to an extrusion strip (58), the extrusion strip (58) is located above the mounting strip (55).

Images