CN210908893U - Tightening device for rivet screw assembling machine - Google Patents

Abstract

A tightening device for a rivet screw assembling machine comprises a fourth mounting base; the upper spring seat and the lower spring seat are vertically opposite and horizontally arranged; the spring positioning column is vertically fixed at the lower end of the upper spring seat; the second lifting cylinder is vertically arranged and fixedly connected with the lower spring seat; the first compression spring is sleeved on the spring positioning column and a piston rod of the second lifting cylinder, and the upper end and the lower end of the first compression spring are abutted against the upper spring seat and the lower spring seat one by one; a linear guide rail vertically fixed on the fourth mounting seat; a second carriage; a vertical main shaft rotatably provided on the second carriage; the second rotating motor is fixedly arranged on the second sliding frame and is in transmission connection with the vertical main shaft through a belt; and a clamping nozzle coaxially fixed at the lower end of the vertical main shaft. The pre-tightened rivet nut and the pre-tightened rivet screw can be finally tightened according to the preset number of turns.

Description

Tightening device for rivet screw assembling machine

Technical Field

The utility model relates to a rivet screw production technical field, concretely relates to a screw up device for rivet screw kludge.

Background

In the automobile production process, a large number of rivet pulling screws are used and are assembled manually at present. The manual work is when will drawing the screw rod of riveting, drawing the equipment of riveting the nut and being drawn the screw of riveting, and the unable accurate control cooperation number of turns can cause the product qualification rate to hang down to make the product reprocess. In addition, mechanical mechanisms of automobiles are complex and changeable, so that manual operation has certain danger during assembly, and danger can be brought to life safety of workers.

Therefore, there is a need for a blind rivet screw assembling machine capable of automatically assembling blind rivet screws, thereby improving efficiency and product stability during blind rivet screw assembling.

The riveting device comprises a nut feeding device, a screw rod feeding device, a pre-tightening device, a riveting nut, a riveting screw rod and a blanking device, wherein the nut feeding device is arranged on a multi-station disc, the nut feeding device is arranged on the nut feeding device, the riveting screw rod is arranged in the nut feeding device in an downward mode, the pre-tightening device and the tightening device are used for preliminarily and finally tightening the riveting nut and the riveting screw rod, and the blanking device is used for rotationally blanking the riveting screw after the riveting screw is shifted outwards along the radial direction.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a screw up device for rivet pulling screw kludge, make it will rivet the nut and screw up with the rivet pulling screw rod.

The utility model provides a technical scheme that technical problem adopted is: a tightening device for a blind rivet screw assembly machine, comprising:

a fourth mounting seat;

the upper spring seat and the lower spring seat are vertically opposite and horizontally arranged, and the lower spring seat is fixedly connected to the fourth mounting seat;

the spring positioning column is vertically fixed at the lower end of the upper spring seat;

the second lifting cylinder is vertically arranged and fixedly connected with the lower spring seat, and is vertically penetrated upwards through the corresponding lower spring seat and then fixedly connected with the spring positioning column;

the first compression spring is sleeved on the spring positioning column and the piston rod of the second lifting cylinder, and the upper end and the lower end of the first compression spring are abutted to the upper spring seat and the lower spring seat one by one;

a linear guide rail vertically fixed on the fourth mounting seat;

a second carriage slidably disposed on the linear guide;

a vertical main shaft rotatably provided on the second carriage;

the second rotating motor is fixedly arranged on the second sliding frame and is in transmission connection with the vertical main shaft through a belt;

and a clamping nozzle coaxially fixed at the lower end of the vertical main shaft.

Preferably, the clamping nozzle comprises a vertically arranged cylinder body and a plurality of elastic sheets which are formed by downward protruding of the lower end of the cylinder body and are circumferentially spaced, and the plurality of elastic sheets form a guide cone which gradually expands downward.

The utility model discloses a screw up device can carry out final tightening according to predetermineeing the number of turns with the rivet nut that draws through screwing up in advance with the rivet screw rod.

Drawings

Fig. 1 is an elevation view of a rivet screw assembling machine according to a preferred embodiment of the present invention;

fig. 2 is a top view of a rivet screw assembling machine according to a preferred embodiment of the present invention;

fig. 3 is a partial structural elevation view of a blind rivet screw assembling machine according to a preferred embodiment of the present invention;

FIG. 4 is an elevational view of a clasping apparatus in accordance with a preferred embodiment of the present invention;

FIG. 5 is an elevational view of a portion of a clasping apparatus in accordance with a preferred embodiment of the present invention;

fig. 6 is a schematic view of the position relationship between the holding device and the driving mechanism in the holding state according to a preferred embodiment of the present invention;

FIG. 7 is a schematic view of the position of the driving mechanism when the clasping device of the preferred embodiment of the present invention is in the open state;

fig. 8 is an elevation view of a nut feeding device according to a preferred embodiment of the present invention;

fig. 9 is an elevation view of a screw feeder according to a preferred embodiment of the present invention;

fig. 10 is an elevation view of a second guide block according to a preferred embodiment of the present invention;

fig. 11 is a schematic view of a pre-tightening device according to a preferred embodiment of the present invention, and corresponding clasping device and driving mechanism when pre-tightening;

fig. 12 is a schematic view showing a positional relationship between a tightening device and a corresponding clasping device and a driving mechanism according to a preferred embodiment of the present invention;

FIG. 13 is an elevational view of a preferred embodiment of the invention;

fig. 14 is a schematic diagram of a position relationship between the pre-blanking device and the corresponding holding device and driving mechanism according to a preferred embodiment of the present invention;

fig. 15 is a schematic view of a position relationship between the discharging device and the corresponding holding device and driving mechanism according to a preferred embodiment of the present invention;

fig. 16 is an elevation view of a blanking device according to a preferred embodiment of the present invention;

fig. 17 is a side view of a part of the blanking device according to a preferred embodiment of the present invention;

description of reference numerals:

01. mounting a table top; 02. a circular turntable; 03. a cam divider; 04. pulling and riveting the nut; 05. pulling and riveting the screw rod; 1. a nut feeding device; 11. a first vibrating feeding tray; 12. a first chute; 13. a first mounting seat; 14. a first base plate; 15. a first material guide block; 15a, a first longitudinal straight groove; 15b, a first transverse straight groove; 16. a first linear guide rail; 17. a first push rod; 18. a first slider; 19. the first push rod drives the cylinder; 2. a screw feeding device; 20. a transfer block; 21. a second vibration feeding tray; 22. a second chute; 23. a second mounting seat; 24. a second base plate; 25. a second material guide block; 25a, a second transverse straight groove; 25b, material leakage holes; 25c, a push rod abdicating hole; 26. a second linear guide; 27. a second push rod; 27a, a push rod fixing block; 28. stirring the material sheet; 29. the second push rod drives the cylinder; 3. a pre-tightening device; 30. a third mounting seat; 31. a first carriage; 32. a third linear guide rail; 33. a transfer rack; 34. a first lifting cylinder; 35. a finger cylinder mounting bracket; 36. a first C-shaped finger cylinder; 37. a pneumatic clamping jaw; 38. a clamping block; 39. a first rotating electrical machine; 4. tightening the device; 40. a first compression spring; 41. a fourth mounting seat; 42. a second lifting cylinder; 43. a spring lower seat; 44. a spring upper seat; 45. a linear guide rail; 46. a second carriage; 47. a vertical main shaft; 48. a second rotating electrical machine; 49. a clamping nozzle; 49a, a cylinder body; 49b, a spring plate; 5. a pre-blanking device; 51. a fifth mounting seat; 52. a first pneumatic sliding table; 53. a sliding table; 54. a second pneumatic slide table; 55. dialing a strip; 56. a sliding table; 6. a blanking device; 60a, a second C-shaped finger cylinder; 60b, clamping strips; 60c, a pneumatic clamping jaw; 61. a vertical plate; 62. a horizontal top plate; 63. a rotating cylinder; 64. a vertical slide plate; 65. a cylinder mounting seat; 67. a material poking rod; 68a, a blanking linear cylinder; 68b, a connecting strip adapter; 68c, a connecting strip; 68d, a linear guide rail; 69. a material poking cylinder; 69a, a hinged support; 7. a holding device; 70. a second compression spring; 70a, a spring fixing seat; 71. a seat plate; 72. a nut support block; 72a, a holding trough; 72b, open slots; 73. pressing a flange; 73a, a positioning part; 74. a nut holding block; 75. an L-shaped connecting block; 76. a cam; 77. a screw stop block; 78. a slider; 79. a horizontal slide rail; 8. a drive mechanism; 81. a jacking plate mounting seat; 82. a lifting guide rail; 83. a jacking plate; 83a, a jacking inclined plane; 84. jacking a cylinder; 85. a connecting member.

Detailed Description

The technical solution of the present invention will be clearly and completely described with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention will be further explained with reference to the accompanying drawings.

Please refer to fig. 1-3.

The utility model discloses a rivet screw kludge, it includes mounting table face 01 and circular carousel 02. The circular turntable 02 is arranged on the mounting table 01 in an intermittently rotatable manner, for example, by means of a cam divider 03. The utility model discloses a circular carousel 02 is six station carousels, under cam wheel splitter 03's drive promptly, and mounting table surface 01 uses every rotation angle to be 60.

Six stations of a nut feeding station, a screw feeding station, a pre-tightening station, a pre-blanking station and a blanking station which are spaced by 60 degrees are sequentially formed around the mounting table surface 01 along the rotation direction of the mounting table surface, and the six stations are correspondingly provided with a nut feeding device 1, a screw feeding device 2, a pre-tightening device 3, a tightening device 4, a pre-blanking device 5 and a blanking device 6. And a holding device 7 is correspondingly arranged on each station and is used for holding the rivet nut in the direction vertical to the radial direction of the circular turntable 02.

Please refer to fig. 4-5.

The holding device 7 comprises a nut bearing block 72, and the upper end of the nut bearing block 72 is downwards sunken to form a holding groove 72 a. One end of the radial inner side of the material holding groove 72a is concave to form an arc-shaped positioning part 73a, and the other end extends outwards to the surface of the nut supporting block 72 along the radial direction of the circular turntable 02. The bottom of the material holding groove 72a is provided with an open groove 72b for yielding the rivet screw 05.

The holding device 7 further comprises a flange pressing sheet 73, a seat plate 71, a horizontal sliding rail 79 and two sliding blocks 78. The seat plate 71 is fixed to the circular turntable 02. The flange pressing piece 73 is horizontally fixed to the nut receiver 72, and covers the positioning portion 73a at one end portion toward the outer side in the radial direction, which is used for downwardly restraining the flange of the blind rivet nut 04.

The horizontal slide rail 79 is disposed on the seat plate 71 and perpendicular to the radial direction of the circular turntable 02. The two sliders 78 are slidably disposed on horizontal slide rails 79. The two sliding blocks 78 are respectively and fixedly connected with a nut holding block 74 and a screw stop block 77, a concave holding part is formed at one opposite end of the two nut holding blocks 74, and a concave limiting part is formed at one opposite end of the screw stop block 77.

The utility model discloses an among the holding device, the silo 72a that holds that forms on the nut bearing piece 72 for hold rivet nut 04. In actual work, when the rivet nut 04 needs to be loaded, the nut loading device can convey the rivet nut 04 to the positioning portion 73a along the radial direction of the circular turntable inwards for positioning, and the flange pressing sheet 73 can enable the rivet nut 04 to be in alignment in the positioning process.

Please refer to fig. 6-7.

The utility model discloses in, specifically drive two sliders 78 through actuating mechanism 8 and keep away from mutually to drive two sliders 78 through two second compression springs 70 and move in opposite directions and then will rivet nut 04 and embrace tightly.

Wherein the second compression spring 70 is arranged in parallel with the horizontal slide rail 79. Two ends of the horizontal slide rail 79 are respectively provided with a spring fixing seat 70 a. One ends of the two second compression springs 70 are fixed to the two spring fixing seats 70a in a one-to-one correspondence, and the other ends are fixed to the nut holding blocks 74 on the corresponding sides.

The drive mechanism 8 includes a vertically disposed lift plate 83. Both ends of the upper end of the lift plate 83 are inclined downward with respect to the middle portion to form two lift slopes 83 a. The cam lifter plate 83 is slidably disposed on a lifter plate mount 81. The jacking plate mounting seat 81 is fixedly connected with the mounting table surface 01. A lift cylinder 84 drives the lift plate 83 up and down along a lift rail 82. The jacking cylinder 84 is fixedly arranged on the jacking plate mounting seat 81, and the lifting guide rail 82 is vertically fixed on the jacking plate mounting seat 81. The jacking plate 83 is fixedly connected to the piston rod of the jacking cylinder 84 through a connecting member 85, and the jacking cylinder 84 is fixedly secured to the jacking plate mounting seat 81.

Two cams 76 are rotatably disposed on the two L-shaped connecting blocks 75 in a one-to-one correspondence. The two L-shaped connecting blocks 75 are fixed to the two sliders 78 in one-to-one correspondence. The two cams 76 are located right above the two jacking inclined surfaces 83a in a one-to-one correspondence, and the axial direction of the cams 76 is perpendicular to the jacking plate 83.

After the circular turntable rotates by 60 degrees, the jacking cylinder 84 drives the jacking plate 83 to ascend, the two jacking inclined surfaces 83a respectively drive the two sliding blocks 78 to move away (open), and the two nut holding blocks 74 and the two screw rod stop blocks 77 also move away along with the two jacking inclined surfaces, until the state shown in fig. 7 is reached. That is, the holding device 7 is opened, and at this time, the blind rivet nut 04, the blind rivet screw 05 and the assembly thereof can be loaded and unloaded.

After the feeding and discharging operations of the corresponding stations are completed, the jacking cylinder 84 drives the jacking plate 83 to descend, at this time, under the action of the restoring force of the second compression spring 70, the two sliding blocks 78 return to the embracing state, and the two nut embracing blocks 74 embrace the rivet nuts 04 thereon. The screw stoppers 77 come close together at the same time to guide the blind rivet screw 05 inserted from above to be directed downward toward the blind rivet nut 04.

Please refer to fig. 8.

The utility model discloses a nut loading attachment 1 includes that charging tray 11, first mount pad 13, first bottom plate 14, first guide block 15, first push rod 17 and first push rod drive actuating cylinder 19 on the first vibration.

Wherein, the first mounting base 13 is fixedly connected with the mounting table-board 01. The first base plate 14 is horizontally fixed to the first mount base 13. The first material guiding block 15 is fixed on one end of the first bottom plate 14 close to the circular turntable 02.

The upper end of the first material guiding block 15 is recessed downwards to form an L-shaped first material guiding groove. The first material guide groove is formed by connecting a first transverse straight groove 15b and a first longitudinal straight groove 15 a. The discharge hole of the first vibrating feeding tray 11 is communicated with one end of the first transverse straight groove 15b far away from the first longitudinal straight groove 15a through a first chute 12. One end of the first longitudinal straight groove 15a far away from the first transverse straight groove 15b is rightly close to the corresponding material holding groove 72 a.

A first linear guide 16 is fixedly arranged on the first base plate 14. A first slider 18 is movably disposed on the first linear guide 16 by a first push rod driving cylinder 19. The first push rod 17 is disposed in a radial direction of the circular turntable 02. The first linear guide 16 extends in the same direction as the first push rod 17, and one end of the first push rod 17 extends into the first longitudinal straight groove 15a in the same direction.

The utility model discloses in, rivet nut 04 is followed and is slided to first horizontal straight flute 15b back in proper order behind first swift current silo 12 in first vibration feeding tray 11, thereby send into holding silo 72a of holding device 7 of nut material loading station department inwards along circular turntable 02 by first push rod 17 and accomplish material loading and location to location portion 73 a.

Please refer to fig. 9-10.

The utility model discloses a screw rod loading attachment 2 includes that the second vibrates feeding tray 21, second mount pad 23, second bottom plate 24, second guide block 25, second push rod and drives actuating cylinder 29 and two second push rods 27.

The second mounting base 23 is fixedly connected with the mounting table-board 01. The second base plate 24 is horizontally fixed to the second mount 23. A second material guiding block 25 is fixed on one end of the second bottom plate 24 close to the circular turntable 02.

The upper end of the second guide block 25 is recessed downward to form an L-shaped second guide chute (not labeled). The second material guiding groove is formed by connecting a second transverse straight groove 25a and a second longitudinal straight groove (not marked). The discharge hole of the second vibrating feeding tray 21 is communicated with one end of the second transverse straight groove 25a far away from the second longitudinal straight groove through a second chute 22. The bottom of the end of the second longitudinal straight groove far from the second transverse straight groove 25a is provided with a material leaking hole 25b, and the material leaking hole 25b is located above the corresponding positioning portion 73 a.

The second base plate 24 is fixedly provided with a second linear guide rail 26, and a second slider (not labeled) is movably arranged on the second linear guide rail 26 under the driving of a second push rod driving cylinder 29. The second push rod 27 is disposed along a radial direction of the circular turntable 02, and the second linear guide 26 extends in the same direction as the two second push rods 27. The second material guiding block 25 is correspondingly provided with a push rod abdicating hole 25c for abdicating the second push rod 27. The two second push rods 27 are arranged opposite to each other one above the other and one end of each of the two second push rods is communicated with the second longitudinal straight groove.

The second sliding block is also fixedly provided with a material stirring sheet 28 which is horizontally arranged, and the material stirring sheet 28 is fixedly connected with the second sliding block. The material stirring sheet 28 is provided with a positioning open slot (not marked) towards the rear side edge of the second vibrating feeding tray 21, and the positioning open slot is higher than the close end of the second chute 22. The positioning open slot is matched with the outer diameter of the nut of the rivet screw 05.

The second slider is fixedly connected with a transfer block 20, the second push rod 27 is fixed on a push rod fixing block 27a, and the push rod fixing block 27a is fixedly connected with the second slider through the transfer block 20.

The utility model discloses in, rivet screw rod 05 in the second vibration feeding tray 21 through second swift current silo 22 slide to the horizontal straight flute 25a of second in, then second push rod 27 and plectrum 28 drive under the drive of cylinder 29 at the second push rod, will rivet screw rod 05 along the vertical straight flute of second and push away to hourglass material hole 25b department after, from hourglass material hole 25b fall to the material loading in advance on the holding device rivet screw rod 04. Wherein, when the rivet screw 05 is loaded, one end of the rod head faces downwards. When pushing the material, the two second push rods 27 abut against the rod portions of the rivet screw 05, and the material pushing sheet 28 pushes the nut of the rivet screw 05, so that the rivet screw 05 can be kept in a vertical posture and vertically loaded into the corresponding rivet nut 04 when being loaded.

Please refer to fig. 11.

The utility model discloses a screw up device 3 in advance includes that third mount pad 30, third linear guide 32, first balladeur train 31, first lift cylinder 34, switching frame 33, first rotating electrical machines 39, finger cylinder mounting bracket 35, first C type point cylinder 36 and two clamp splices 38.

Wherein, the third mounting seat 30 is fixedly arranged on the mounting table-board 01. A third linear guide 32 is vertically fixed to the third mount 30. The first carriage 31 is provided on the third linear guide 32 to be slidable up and down. The first elevating cylinder 34 is fixedly installed on the third installation base 30. The piston rod of the first lifting cylinder 34 is fixedly connected with the first carriage 31 through the adapter bracket 33. The first rotating motor 39 is fixedly disposed on the first carriage 31, and a motor shaft thereof is fixedly connected to the finger cylinder mounting frame 35. A first C-shaped finger cylinder 36 is fixedly mounted on the finger cylinder mounting bracket 35. Two pneumatic jaws 37 of a first C-shaped finger cylinder 36 are moved relative to each other in the horizontal direction and each has a clamp block 38 fixed thereto.

The utility model discloses a device 3 screws up in advance, clasps the back by the nut of clasping device 7 clasps the piece 74, will insert the nut of riveting screw rod 05 in the rivet nut 04 and the pole portion of neighbouring through two clamp splice 38 and press from both sides tightly simultaneously, rotates certain angle under the drive of first rotating electrical machines 39 then to accomplish and screw up in advance.

Please refer to fig. 12-13.

The tightening device 4 includes a fourth mounting seat 41, an upper spring seat 44, a lower spring seat 43, a spring positioning column (not shown), a second lift cylinder 42, a first compression spring 40, a linear guide rail 45, a second carriage 46, a vertical spindle 47, a second rotating motor 48, and a clamping mouth 49.

Wherein, the fourth mounting seat 41 is fixedly arranged on the mounting table-board 01. The upper spring seat 44 and the lower spring seat 43 are vertically opposite and horizontally arranged. The lower spring seat 43 is fixedly connected with the fourth mounting seat 41. The spring location post is vertically fixed to the lower end of the upper spring seat 44.

The second lifting cylinder 42 is vertically arranged and fixedly connected with the lower spring seat 43. The second lifting cylinder 42 vertically penetrates the corresponding lower spring seat 43 upwards and then is fixedly connected with the spring positioning column. The first compression spring 40 is sleeved on the spring positioning column and the piston rod of the second lifting cylinder 42. The upper and lower ends of the first compression spring 40 are abutted against the upper spring seat 44 and the lower spring seat 43 one by one.

The linear guide 45 is vertically fixed to the fourth mount 41. The second carriage 46 is slidably disposed on the linear guide 45. A vertical spindle 47 is rotatably arranged on the second carriage 46. The second rotating motor 48 is fixedly provided on the second carriage 46. The second rotary motor 48 is drivingly connected to the vertical spindle 47 via a belt (not labeled). A jaw 49 is coaxially fixed to the lower end of the vertical main shaft 47.

The nozzle 49 includes a cylinder 49a vertically disposed and a plurality of elastic pieces 49b formed by downwardly protruding the lower end of the cylinder 49a at intervals in the circumferential direction. The plurality of spring pieces 49b form a guide cone which gradually expands downwards. The clamping mouth 49 can be pressed downwards by the elastic sheet to pull the nut of the riveting screw 04 to generate a tightening force, and meanwhile, the workpiece is prevented from being easily damaged due to complete locking when thread matching is mishandled.

The utility model discloses a screw up device 4 is being screwed up after in advance at rivet nut 04 and rivet screw rod 05, moves down and pushes down on rivet screw rod 05's nut through second lift cylinder 42 drive clamping jaw 49, thereby rethread second rotating electrical machines 48 drive rivet screw rod 05 makes its final tightening for rivet nut 04 rotates predetermined angle (the number of turns promptly).

Please refer to FIG. 14. The utility model discloses a unloader 5 includes the strip 55 of dialling of fifth mount pad 51, first pneumatic slip table 52, the pneumatic slip table 54 of second and vertical setting in advance. The fifth mounting seat 51 is fixedly arranged on the mounting table-board 01. The cylinder body of the first pneumatic sliding table 52 is vertically arranged and fixed on the fifth mounting seat 51. The cylinder body of the second pneumatic sliding table 54 is disposed and fixed on the sliding table 53 of the first pneumatic sliding table 52 in the radial direction of the circular turntable 02. The upper end of the dial 55 is fixed to a slide table 56 of the second pneumatic slide table 54.

The pre-blanking device 5 is mainly used for outwards shifting the finally assembled rivet screw for a certain distance along the radial direction of the circular turntable, so that the interference between a flange of the rivet nut and a flange pressing sheet during subsequent blanking is avoided.

Please refer to fig. 15-17.

The utility model discloses a unloader 6 includes two risers 61, a horizontal roof 62, a unloading sharp cylinder 68a, two linear guide 68d, two vertical slides 64, a connecting strip 68C, a revolving cylinder 63, a horizontal main shaft (not shown), a connecting strip adapter 68b, a second C type finger cylinder 60a and two holding strip 60 b.

Wherein, the two standing plates 61 are fixed on the mounting table-board 01 and are arranged oppositely. The two ends of the horizontal top plate 62 are fixed on the upper ends of the two vertical plates 61 in a one-to-one correspondence. The blanking linear cylinder 68a is arranged along the radial direction of the circular turntable 02 and fixed at the upper end of the horizontal top plate 62.

The two linear guide rails 68d are fixedly arranged at the lower end of the horizontal top plate 62 and are arranged in parallel with the blanking linear cylinder 68 a. The two vertical sliding plates 64 are correspondingly and slidably arranged on the two linear guide rails 68 d. The two vertical sliding plates 64 are arranged oppositely. The connecting bar 68c is fixedly connected with the piston rod of the blanking linear cylinder 68a through the connecting bar adapter 68 b. The horizontal top plate 62 is provided with a yielding slot hole for yielding the connecting bar along the radial movement. The connecting strip 68c is downwardly passed through the offset slot hole and then fixedly connected with the two vertical sliding plates 64. The rotary cylinder 63 is fixedly arranged on one of the vertical slides 64. One end of the horizontal main shaft is rotatably arranged on the other vertical sliding plate 64, and the other end is fixed on a piston rod of the rotary cylinder 63. The horizontal main shaft is arranged perpendicular to the blanking linear cylinder 68 a.

A second C-finger cylinder 60a is vertically fixed to the horizontal main shaft by a cylinder mount 65. A clamping strip 60b is fixed on each of the two pneumatic clamping jaws 60C of the second C-shaped finger cylinder 60 a. The two holding strips 60b are arranged towards the circular turntable 02.

In other embodiments, it is preferable that the blanking device 6 further includes a material ejecting mechanism (not labeled) including: a material shifting cylinder 69, a hinged support 69a and a material shifting rod 67. The material poking cylinder 69 is hinged at the upper end of the horizontal top plate 62. A hinge mount 69a is fixed to an end of the horizontal top plate 62 remote from the circular turntable 02. The material shifting rod 67 is positioned on the side of the material shifting cylinder 69 far away from the circular turntable 02. The middle part of the kick-out lever 67 is hinged on the hinge mount 69 a. One end of the kick-off lever 67 is hinged to a piston rod of the kick-off cylinder 69. The movement track of the other end of the kick-off bar 67 is clamped between the rotation tracks of the two holding strips 60b rotating along with the horizontal main shaft.

The utility model discloses a dial material mechanism, it can be with the assembly of the rivet nut 04 after the equipment and rivet screw rod 05 from two holding strip 60b from dialling down, can shift to on other manipulators or conveyer afterwards to next production processes.

The utility model discloses a rivet screw kludge has designed a device of holding for fastening rivet nut to through the nut loading attachment dress rivet nut, through screw rod loading attachment court rivet nut in to the dress down rivet screw rod, carry out tentatively, finally screw up through screwing up the device in advance, screwing up the device respectively to rivet nut and rivet screw rod, will rivet the screw through unloader in advance and radially stir the back outwards, carry out rotatory unloading by unloader. The structure is exquisite, the practicability is strong, the assembling efficiency can be greatly improved, and the number of matching turns between the rivet nut and the rivet screw can be kept stable.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Other parts not described in detail in the present invention belong to the prior art, and are not described herein again.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (2)

1. Tightening device for a blind rivet screw assembly machine, characterized in that said tightening device (4) comprises:

a fourth mounting seat (41);

the upper spring seat (44) and the lower spring seat (43) are vertically opposite and horizontally arranged, and the lower spring seat is fixedly connected to the fourth mounting seat (41);

the spring positioning column is vertically fixed at the lower end of the upper spring seat (44);

the second lifting cylinder (42) is vertically arranged and fixedly connected with the lower spring seat (43), and the second lifting cylinder (42) vertically penetrates the corresponding lower spring seat (43) upwards and is then fixedly connected with the spring positioning column;

the first compression spring (40) is sleeved on the spring positioning column and a piston rod of the second lifting cylinder (42), and the upper end and the lower end of the first compression spring (40) are abutted to the upper spring seat (44) and the lower spring seat (43) one by one;

a linear guide rail (45) vertically fixed to the fourth mounting base (41);

a second carriage (46) slidably disposed on the linear guide (45);

a vertical spindle (47) rotatably arranged on the second carriage (46);

a second rotating motor (48) fixedly arranged on the second carriage (46), wherein the second rotating motor (48) is in transmission connection with the vertical spindle (47) through a belt;

and a clamping nozzle (49) coaxially fixed at the lower end of the vertical main shaft (47).

2. The tightening device for a blind rivet screw assembling machine according to claim 1, wherein the clamping mouth (49) comprises a vertically arranged cylinder (49a) and a plurality of elastic sheets (49b) which are formed by downwardly protruding the lower end of the cylinder (49a) at intervals in the circumferential direction, and the plurality of elastic sheets (49b) form a guide cone which is gradually enlarged downwards.

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