CN115921753A

CN115921753A - Spin riveting pressure head mechanism and contact spin riveting device

Info

Publication number: CN115921753A
Application number: CN202211560827.9A
Authority: CN
Inventors: 张法根; 金水根; 李雅美
Original assignee: Shaoxing Xuheng Electric Co ltd
Current assignee: Shaoxing Xuheng Electric Co ltd
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-04-07
Anticipated expiration: 2042-12-07
Also published as: CN115921753B

Abstract

The invention discloses a spin riveting pressure head mechanism, which has the technical scheme that: the riveting head assembly comprises a riveting head and a riveting head assembly, wherein the riveting head assembly comprises a riveting head, and the riveting head extends out of an opening at the lower end of the sleeve; the upper end of the spin riveting head assembly is rotatably connected in the sleeve through a support shaft, the upper end of the spin riveting head assembly can swing obliquely, and the lower end of the riveting head is located above the riveting seat all the time in the swing adjusting process of the spin riveting assembly. The invention can realize the adjustment of the riveting angle of the riveting head, and ensure that the riveting head can always be in the position opposite to the position of the riveting piece after adjustment, thereby ensuring the normal and stable riveting of riveting equipment.

Description

Spin riveting pressure head mechanism and contact spin riveting device

Technical Field

The invention relates to the technical field of riveting equipment, in particular to a spin riveting head mechanism and a contact spin riveting device with the same.

Background

The rotary riveting machine can rivet objects by using riveting parts, and the rotary riveting machine is compact in structure, stable in performance and convenient and safe to operate. The riveting machine mainly completes assembly by rotation and pressure, for example, in electronic switches such as temperature controller switches, contacts in the electronic switches are usually made of silver or copper materials, riveting equipment is often needed for riveting, and spin riveting equipment is generally adopted for processing.

In the riveting process of the spin riveting machine, the riveting angle is often required to be adjusted according to different riveting requirements, namely, riveting heads with different angles are selected; different riveting stress can be formed between the upper surfaces of the riveting parts through different inclined states of the lower end surfaces of the riveting heads, selection can be performed according to different riveting requirements, different transverse inclined component forces can be generated in the riveting process, and different states can be formed on the upper end surfaces of the riveting parts.

Present riveting equipment if need carry out the regulation of riveting angle, need adopt the riveting head of changing different inclinations usually, realize the adjustment through the riveting head that is equipped with in advance, but this kind of mode is adjusted and is had great limitation, only can prepare according to some specific angles, can't carry out free adjustment. Therefore, some related technicians begin to research the adjusting technology of the riveting head to directly adjust the angle of the riveting head, generally adopting a rotating shaft adjusting mode, that is, a rotating shaft is arranged at the upper end of the riveting head to form a rotating connection structure, and further, the rotating shaft adjusting mode can form corresponding deflection adjustment on the lower end surface of the riveting head to form a corresponding riveting angle, as shown in fig. 9.

This kind of regulative mode, though can adjust the angle of riveting head, at the riveting head rotation regulation in-process, the lower terminal surface of riveting head will produce the removal of certain distance in the horizontal direction, forms offset a, leads to the unable just riveting position to original of lower terminal surface of riveting head, leads to the unable normal riveting of equipment. The position of the workpiece needs to be adjusted adaptively again, the general riveting equipment can be simply adjusted, and if the automatic conveying equipment is involved, equipment such as a rail for conveying materials needs to be adjusted, so that the angle adjustment operation of the riveting equipment is not facilitated.

Therefore, a new solution is needed to solve this problem.

Disclosure of Invention

The invention aims to solve the problems and provides a spin riveting head mechanism which can realize the adjustment of the riveting angle of a riveting head, ensure that the riveting head can always be in a position opposite to the position of a riveting piece after adjustment, and ensure the normal and stable riveting of riveting equipment.

The technical purpose of the invention is realized by the following technical scheme: a spin riveting head mechanism comprises a sleeve and a spin riveting head assembly inside the sleeve, wherein the spin riveting head assembly comprises a riveting head, and the riveting head extends out of an opening at the lower end of the sleeve; the upper end of the spin riveting head assembly is rotatably connected in the sleeve through the supporting shaft and can swing obliquely, and the lower end of the riveting head is always located above the riveting seat in the swing adjusting process of the spin riveting assembly.

The riveting head assembly further comprises a first connecting rod and a second connecting rod, the middles of the first connecting rod and the second connecting rod are rotatably connected through a rotating shaft, the upper end of the first connecting rod is rotatably connected through a supporting shaft, and the lower end of the second connecting rod is provided with a riveting head; the distance between the axis of the rotating shaft and the axis of the supporting shaft is consistent with the distance between the axis of the rotating shaft and the middle position of the lower end of the riveting head.

The invention is further arranged in such a way that the lower end of the first connecting rod is rotatably connected with a first linkage block through a first linkage shaft, the upper end of the second connecting rod is rotatably connected with a second linkage block through a second linkage shaft, and the distances between the rotating shaft and the first linkage shaft and between the rotating shaft and the second linkage shaft are consistent; the first linkage block and the second linkage block are connected through a linkage seat, the linkage seat can be transversely adjusted, and the first linkage shaft and the second linkage shaft are kept in the vertical opposite positions.

The invention is further provided that the lower end of the linkage seat is provided with a first linkage groove, and the first linkage block is connected in the first linkage groove in a sliding manner and can realize up-and-down sliding adjustment; the upper end of the linkage seat is provided with a second linkage groove, and the second linkage groove is connected in the second linkage groove in a sliding manner and can realize up-and-down sliding adjustment; the linkage seat can drive the first connecting rod and the second connecting rod to rotate and swing through transverse adjustment.

The invention is further arranged in such a way that the corresponding positions of the first connecting rod and the second connecting rod are provided with linkage grooves, the linkage grooves are arc-shaped and are coaxial with the rotating shaft, and the width of the linkage grooves is mutually adapted to the outer diameter of the linkage shaft, so that the linkage grooves are used for guiding the swinging and sliding of the linkage shaft and limiting the swinging amplitude.

The invention is further arranged in such a way that the linkage seat is elastically supported by a limit spring in two directions corresponding to the transverse movement, and two ends of the limit spring are respectively propped between the linkage seat and the inner wall of the sleeve.

The linkage seat is further provided with a first screw hole on each of two sides of the sleeve corresponding to the transverse moving direction of the linkage seat, the first screw hole is in threaded connection with a first screw rod, one end of the first screw rod extends out of the sleeve, the other end of the first screw rod abuts against the outer side of the linkage seat, and the linkage seat is fixed through the abutting of the first screw rods on the two sides.

The invention is further arranged in that one end of the screw rod, which extends into the sleeve, is fixedly connected with a butting block, one side of the butting block, which faces the linkage seat, is a butting plane, the exterior of the linkage block is also provided with a matched butting plane, and the two butting planes are butted to realize the positioning of the linkage seat.

The invention is further provided that two sides corresponding to the linkage seat in the sleeve are supported by the pressing block, and the pressing block is connected with the inner wall of the sleeve in a vertical sliding manner through the sliding chute; the pressing block is in a wedge shape with a large upper part and a small lower part and is provided with a first inclined surface inclining towards the direction of the linkage seat; the upper parts of the two sides of the linkage seat are provided with a second inclined plane which is matched with the first inclined plane in a pressing way; the first inclined plane and the second inclined plane are mutually abutted and attached, and the abutting block can be adjusted up and down so as to realize transverse adjustment of the linkage block.

The invention is further provided with a screw hole II formed in the upper end of the pressing block, a screw rod II is connected with the screw hole II through internal threads, and the upper end of the screw rod II penetrates through the sleeve and is connected with the sleeve in a sliding manner; a supporting spring is elastically connected between the pressing block and the upper wall of the sleeve; the upper part of the sleeve is provided with a lifting disc capable of being adjusted in a lifting way, and the lower part of the lifting disc is rotatably connected with the upper end of the second screw rod through a rotating seat; the upper part of the lifting disc is rotatably supported with a lifting block through a rotary guide slider, and the lifting block is driven to lift through a lifting rod.

The invention also provides a spin riveting device which comprises a riveting seat, a lifting seat, a rotary driver, a lifting driver and the spin riveting head mechanism, wherein the lifting seat is arranged above the riveting seat through the lifting driver, the rotary driver is arranged on the lifting seat, the rotary driver is provided with a spin riveting shaft arranged downwards, and the spin riveting head mechanism is arranged at the lower end of the spin riveting shaft.

The rotary riveting device further comprises a lifting rod, the lifting rod is installed on the lifting seat, the lower end of the lifting rod can be adjusted in an up-and-down lifting mode, and the lifting seat is installed at the lower end of the lifting rod and can be adjusted in an up-and-down lifting mode through the lifting rod.

In conclusion, the invention has the following beneficial effects:

the adjustable rotary riveting head structure can realize the adjustment of the riveting angle of the riveting head, and in the adjustment process, through the mutual linkage and cooperation of the linkage assembly and the connecting rod, in the riveting head deflection adjustment process, the riveting head can be ensured to be always in the position right opposite to the position of the riveting piece after adjustment, so that the normal and stable riveting of riveting equipment is ensured.

Drawings

FIG. 1 is a first schematic structural view of a spin riveting head mechanism according to the present invention;

FIG. 2 is a perspective view of the spin head assembly of the present invention;

FIG. 3 is a cross-sectional view of the spin head assembly of the present invention;

FIG. 4 is a second structural view of a spin riveting head mechanism according to the present invention;

FIG. 5 is a schematic structural diagram of a first connecting rod of the present invention;

FIG. 6 is another schematic structural view of a spin rivet head mechanism of the present invention;

FIG. 7 is a schematic structural view of a spin-riveting apparatus according to the present invention;

FIG. 8 is a schematic view of the spin head assembly of the present invention;

FIG. 9 is a schematic view of a prior art direct rotation adjustment rivet head.

Reference numerals: 1. a sleeve; 2. a supporting base; 3. spin riveting the assembly; 4. riveting and pressing heads; 5. an opening; 6. a first connecting rod; 7. a support shaft; 8. a second connecting rod; 9. a rotating shaft; 10. a linkage seat; 11. a linkage shaft; 12. a linkage block; 13. a linkage groove; 14. a limiting block; 15. a limiting groove; 16. a limiting spring; 17. a first screw hole; 18. a first screw rod; 19. a resisting block; 20. pressing the plane; 21. a through groove; 22. a first nut; 23. a second nut; 24. an arc-shaped slot; 25. riveting the shaft in a rotating manner; 26. a pressing block; 27. a chute; 28. a second screw hole; 29. a second screw; 30. a first inclined plane; 31. a second inclined plane; 32. a support spring; 33. a lifting plate; 34. a rotating base; 35. a lifting block; 36. a rotary transducer slide; 37. a lifting seat; 38. riveting and pressing the base; 39. a lifting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment discloses a spin riveting head mechanism, as shown in fig. 1-3, which includes a sleeve 1 and a spin riveting head assembly supported by the sleeve 1, the spin riveting head assembly is installed inside the sleeve 1, the spin riveting head assembly includes a riveting head 4, and the riveting head 4 can extend out from an opening 5 at the lower end of the sleeve 1. The upper end of the sleeve 1 can be connected with a spin riveting shaft 25, the spin riveting shaft 25 rotates to drive a spin riveting pressure head mechanism to rotate, and spin riveting processing can be carried out through a spin riveting head.

The upper end of the spin riveting head assembly is rotatably connected into the sleeve 1 through a support shaft 7 and can realize inclined swing; in the swing adjusting process of the spin riveting assembly 3, the lower end of the riveting head 4 can be adjusted in an inclined mode, and then the riveting angle of the riveting head 4 can be adjusted. Set up the linkage subassembly in the middle of this spin riveting head subassembly, can realize riveting 4 horizontal direction's regulation, and then realize that 4 lower extremes of riveting head are located riveting seat 38 top all the time, can keep riveting 4 lower extreme central points to put and keep the position inconvenient in the horizontal direction.

This spin riveting head subassembly still includes connecting rod 6 and connecting rod two 8, and the centre of connecting rod 6 and connecting rod two 8 is rotated through pivot 9 and is connected, forms X-shaped structure, and specifically, the mounted position of pivot 9 is in the half section under connecting rod 6, and the length of two sections is about 2 about from top to bottom: 1, the installation position of the rotating shaft 9 is arranged at the upper half end of the second connecting rod 8, and the lengths of the upper section and the lower section are about 1:2, as shown in fig. 2 and 3. The upper end of the first connecting rod 6 is rotatably connected through a support shaft 7, the lower end of the second connecting rod 8 is provided with a riveting head 4, and the distance between the axis of the rotating shaft 9 and the axis of the support shaft 7 is kept to be consistent with the distance between the axis of the rotating shaft 9 and the middle position of the lower end of the riveting head 4. The lower end of the first connecting rod 6 is rotatably connected with a first linkage block 12 through a first linkage shaft 11, the upper end of the second connecting rod 8 is rotatably connected with a second linkage block 12 through a second linkage shaft 11, and the distance between the rotating shaft 9 and the first linkage shaft 11 is consistent with that between the rotating shaft 9 and the second linkage shaft 11. The first linkage block 12 and the second linkage block 12 are connected through a linkage assembly, the linkage assembly comprises the linkage block 12, the linkage seat 10 can be transversely adjusted, and the first linkage shaft 11 and the second linkage shaft 11 are kept in the vertical opposite positions. In the process of transversely adjusting the linkage seat 10, the first linkage shaft 11 and the second linkage shaft 11 can be synchronously and transversely adjusted, so that the two linkage shafts 11 can be driven to move, the two linkage shafts 11 are kept at the opposite upper and lower positions, and the center position of the lower end of the riveting head 4 at the lower end of the connecting rod II 8 and the support shaft 7 are kept at the opposite upper and lower positions. Furthermore, in the adjusting process, the riveting head 4 can be always positioned right above the riveting seat 38, and the situation that the riveting head 4 is offset is avoided. The specific adjustment principle of the spin head assembly is shown in fig. 8.

In order to achieve smooth adjustment between the linkage base 10 and the linkage block 12, a mutual sliding connection structure may be formed between the linkage base 10 and the linkage block 12. As shown in fig. 3, a first linkage groove 13 is formed at the lower end of the linkage base 10, and the first linkage block 12 is slidably connected in the first linkage groove 13 and can be adjusted to slide up and down; the upper end of the linkage seat 10 is provided with a second linkage groove 13, and the second linkage groove 13 is slidably connected in the second linkage groove 13 and can realize up-and-down sliding adjustment. The first connecting rod 6 and the second connecting rod 8 can be driven to rotate and swing through the linkage seat 10 through transverse adjustment, and in the transverse adjustment process of the linkage seat 10, the linkage block 12 is adjusted in the linkage groove 13 in an adaptive sliding mode, so that the linkage seat 10 and the first connecting rod 6 and the second connecting rod 8 can be kept in swing adjustment. The lower extreme of connecting rod 6 is in the swing in-process towards one side direction, and the lower extreme of connecting rod two 8 will swing towards opposite side direction, and the both sides direction swing in-process will realize the ascending position compensation of transverse direction, and then can realize maintaining the lower extreme central point of riveting head 4 and put in a position all the time, and riveting head 4 only realizes the regulation of inclination, does not produce the beat of transverse position, can be all the time just to the top of riveting seat 38, guarantees that riveting head 4 is located directly over the riveting piece in the slope adjustment process.

As shown in fig. 5, in order to maintain the stability of the rotational swing between the first connecting rod 6 and the second connecting rod 8, an arc-shaped groove 24 may be formed in the middle of the first connecting rod 6, the arc-shaped groove 24 is of an arc-shaped structure, the axis of the arc-shaped groove 24 is coaxial with the rotating shaft 9, and the end of the second linking shaft 11 may extend into the arc-shaped groove 24, so that the first connecting rod 6 and the second connecting rod 8 may slide relative to each other for limiting, and further maintain the rotational motion of the first connecting rod 6 and the second connecting rod 8. In addition, an arc-shaped groove 24 can be formed in the middle of the second connecting rod 8, the arc-shaped groove 24 is of an arc-shaped structure, the axis of the arc-shaped groove 24 is coaxially arranged with the rotating shaft 9, and the end part of the first linkage shaft 11 can extend into the arc-shaped groove 24, so that the mutual sliding limiting of the first linkage shaft and the arc-shaped groove can be realized. The swinging motion of the first connecting rod 6 and the second connecting rod 8 can be further guided and stabilized through the linkage of the two groups of arc-shaped grooves 24 and the end parts of the two linkage shafts 11.

The width of the corresponding arc-shaped groove 24 is adapted to the outer diameter of the linkage shaft 11, so that the end of the linkage shaft 11 can be embedded into the arc-shaped groove 24, the linkage shaft 11 can be matched to guide sliding, the arc-shaped groove 24 in an arc state can limit the swing amplitude of the linkage shaft 11, and the action stability of the linkage structure is kept.

In order to keep the riveting head 4 at the lower ends of the support shaft 7 and the connecting rod 8 of the connecting rod I6 in a vertical position, the linkage seat 10 needs to be kept in a vertical state during the transverse movement process, and a transverse scissor-fork-shaped structure is formed.

As shown in fig. 1, in two directions of the linkage base 10 corresponding to the lateral movement, namely, the left and right side positions, the two ends of the limiting spring 16 are elastically supported by the limiting spring 16, respectively, and are pressed between the linkage base 10 and the inner wall of the sleeve 1, so that the linkage base 10 can be elastically maintained by the spring, and the linkage base 10 can be basically kept in a relatively stable state. Furthermore, screw holes 17 are respectively formed in the left and right sides of the sleeve 1, i.e. the two sides in the direction corresponding to the transverse movement of the linkage seat 10, screw rods 18 are connected to the screw holes 17 in a threaded manner, the linkage seat 10 can be respectively positioned by the two screw rods 18, and the transverse position of the linkage seat 10 can be adjusted by adjusting the position of the screw rods 18.

Specifically, one end of the first screw 18 extends out of the sleeve 1, so that the rotation adjustment is convenient; the other end of the first screw 18 abuts against the outer side of the linkage seat 10. In order to maintain the abutting stability between the first screw 18 and the linkage block 12, an abutting block 19 is fixedly connected to one end of the first screw 18 extending into the sleeve 1, an abutting plane 20 is arranged on one side of the abutting block 19 facing the linkage seat 10, an adaptive abutting plane 20 is also formed outside the linkage block 12, and the abutting area between the first screw 18 and the linkage seat 10 can be increased by abutting the two abutting planes 20, so that the stability of the linkage seat 10 in a locking state is improved, and the stability of the linkage seat 10 and the whole spin-riveting head assembly can be maintained.

As shown in fig. 4, in order to further limit and stabilize the linkage structure, through grooves 21 may be formed on two other side walls of the sleeve 1, the through grooves 21 are in an arc shape, and the support shaft 7 is taken as an axis, and two end positions of the rotating shaft 9 respectively penetrate through the support shaft 7, so that two ends of the support shaft 7 can penetrate through the sleeve 1. The outer diameter of the rotating shaft 9 and the width of the through groove 21 are matched with each other, so that the rotating shaft 9 can deflect in the through groove 21. And a first nut 22 and a second nut 23 are respectively connected with two ends of the rotating shaft 9. When the components such as the first connecting rod 6 and the like need to be adjusted, the nut can be detached. After the adjustment is completed, the position of the lower end face of the riveting head 4 is determined, the two nuts can be screwed, and then the rotating shaft 9 and the outer wall of the sleeve 1 are fixed, so that the linkage seat 10 and each part can be further stabilized and limited, and the stability in the riveting process is ensured.

A limiting block 14 can be arranged between the inside of the linkage seat 10 and the rotating shaft 9 to further guide the movement of the linkage seat 10, a limiting groove 15 with a transverse trend is formed in the middle of the linkage seat 10, the limiting block 14 is sleeved on the periphery of the rotating shaft 9, transverse sliding guide can be generated between the limiting block 14 and the limiting groove 15, and then the position stability between the linkage seat 10 and the first connecting rod 6 and the second connecting rod 8 is ensured.

On the basis of the above embodiment, the adjusting structure of the spin rivet head assembly can be further optimized, as shown in fig. 6, two sides of the sleeve 1 corresponding to the linkage seat 10 are supported by the pressing blocks 26, and the pressing blocks 26 are located at the position obliquely above the linkage seat 10. The sliding grooves 27 are formed in the two side walls of the sleeve 1, and the pressing block 26 is connected with the inner wall of the sleeve 1 in a vertical sliding mode through the sliding grooves 27, so that the adjusting action stability of the pressing block 26 can be maintained. The pressing block 26 is wedge-shaped with a large upper part and a small lower part, one side facing the inside of the sleeve 1 is a plane, and one side inclined towards the direction of the linkage seat 10 is an inclined plane one 30. And the upper parts of the two sides of the linkage seat 10 are formed with a second inclined surface 31, and the first inclined surface 30 and the second inclined surface 31 are mutually matched, pressed in parallel and mutually attached.

By adjusting the height of the two pressing blocks 26, the two inclined planes are pressed and matched with each other, so that the transverse direction of the linkage block 12 can be adjusted, and the position of the lower end face of the pressing head at the lower end of the rotary riveting head assembly can be adjusted to be basically free from deviation. In addition, the first inclined surface 30 and the second inclined surface 31 are kept in mutual abutting joint in the adjusting process, and the vertical state of the linkage block 12 can be kept.

The upper end of the pressing block 26 is provided with a screw hole II 28, the screw hole II 28 is connected with a screw rod II 29 in a threaded manner, the screw rod II 29 is vertically arranged upwards, the upper end of the screw rod II penetrates upwards and extends out of the sleeve 1 and is in sliding connection with the sleeve 1, no screw thread is arranged at the penetrating position of the screw rod II 29, and therefore smooth sliding between the screw rod II 29 and the sleeve 1 can be maintained. A supporting spring 32 is elastically connected between the pressing block 26 and the upper wall of the sleeve 1, and the pressing block 26 can be pressed downwards by the supporting spring 32, so as to ensure that the pressing block 26 and the linkage base 10 are kept in a mutually stable pressing state.

The lifting disc 33 is arranged at the end of the sleeve 1 and can be adjusted in a lifting mode, the lifting disc 33 is of an annular structure, the spin riveting shaft 25 can penetrate through the middle of the lifting disc 33, the rotary seat 34 is arranged at the position, corresponding to the second screw rod 29, of the lower portion of the lifting disc 33, the upper end of the second screw rod 29 extends into the rotary seat 34 and can be rotatably connected with the rotary seat 34, an axial limiting state is formed inside the rotary seat 34 and the upper end of the second screw rod 29, and only rotary adjustment can be conducted between the rotary seat and the upper end of the second screw rod 29. Furthermore, the relative position height of the pressing block 26 at the lower end of the second screw 29 can be adjusted by rotating the second adjusting screw 29.

The lifting block 35 is rotatably supported on the upper portion of the lifting plate 33 by a rotary guide 36, and the rotary guide 36 may be a thrust bearing or a sliding guide washer, so as to reduce friction between the lifting block 35 and the lifting plate 33.

The lifting rod 39 can be installed on the lifting seat 37 of the spin riveting device, an air cylinder or an electric push rod can be adopted, the lifting rod 39 is provided with a telescopic end facing to the lifting block 35, the lifting rod is connected with the lifting block 35, the lifting action of the lifting rod 39 is used for driving the lifting block 35 to lift, downward pressure is generated on the lifting disc 33, downward pressure is generated on the screw rod II 29, the two pressing blocks 26 are pressed down, and therefore the linkage seat 10 and the whole spin riveting head assembly are maintained in a stable state through the downward pressure.

The two pressing blocks 26 are driven and adjusted by adopting screws and an external driving structure, the adjusting modes of the two screws I18 in the embodiment can be mutually independent in the adjusting process, and the two screws I18 can be unscrewed before the pressing blocks 26 are used for adjusting, and then the pressing blocks 26 are used for adjusting.

In adjusting riveting head 4, thereby realize through the screw rod that the screw thread regulation corresponds, in adjustment process, can adopt angle measurement's instrument in advance, adjust the inclination of the lower terminal surface of riveting head 4, adjust to suitable position, then lock again, ensure angle modulation's accuracy. Or, corresponding indication marks can be drawn on the corresponding screw, and the inclination angle of the riveting head 4 can be determined through the corresponding marks, so that the angle adjustment of the riveting head 4 can be conveniently determined.

Further, the angle of the riveting head 4 can be adjusted during the riveting process through the lifting rod 39. First, the lifting block 35 is lifted by the lifting rod 39, and no downward pressure is generated on the pressing block 26. The linkage block 12 is only maintained at a stable state position under the action of the two groups of springs, the linkage block 12 is located at a middle position, the riveting head 4 is in a vertical state, and plane pressing can be carried out on the riveting piece. Then, the lifting rod 39 drives the lifting block 35 to press down, downward pressure is generated on the abutting block 26, the linkage block 12 is driven to move transversely, and therefore the inclined plane position of the riveting head 4 generates inclined deflection, and the riveting angle is adjusted. That is, when beginning riveting, earlier through relative pressure for the riveting position flattens, and then through the riveting face of slope, the pressure that makes the riveting piece of riveting position can be even forms more stable smooth riveting surface.

The embodiment also discloses a spin riveting device, as shown in fig. 7, which includes a riveting base 38, a lifting base 37, a rotary driver, a lifting driver and the spin riveting head mechanism in the above embodiments, where the lifting base 37 is installed above the riveting base 38 through the lifting driver, the rotary driver is installed on the lifting base 37, the rotary driver has a spin riveting shaft 25 disposed downward, and the spin riveting head mechanism is installed at the lower end of the spin riveting shaft 25.

Further, according to a specific configuration, a lift rod 39 may be provided, the lift rod 39 may be attached to the lift base 37, the lower end of the lift rod 39 may be vertically adjusted, and the lift base 37 may be attached to the lower end of the lift rod 39 and may be vertically adjusted by the lift rod 39.

The end face of the riveting head 4 at the lower end of the spin riveting device can be adjusted, and after the riveting head 4 tilts and swings, the position of the lower end face of the riveting head 4 can be ensured to be always right above the riveting position of the riveting seat 38, so that the situation that the riveting head 4 generates horizontal position deviation along with the swinging can be avoided.

By adopting the structure of the riveting head 4 capable of deflecting, the riveting head can be suitable for riveting work in various environments and requirements, and can be suitable for processing various parts such as riveting connection of workpieces, riveting installation of electrical contacts and the like.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. The spin riveting head mechanism is characterized by comprising a sleeve (1) and a spin riveting head assembly inside the sleeve (1), wherein the spin riveting head assembly comprises a riveting head (4), and the riveting head (4) extends out of an opening (5) at the lower end of the sleeve (1); the upper end of the spin riveting head assembly is rotatably connected into the sleeve (1) through the supporting shaft (7) and can swing obliquely, and the lower end of the riveting head (4) is always positioned above the riveting seat (38) in the swing adjusting process of the spin riveting assembly (3).

2. The spin riveting head mechanism according to claim 1, characterized in that the spin riveting head assembly further comprises a first connecting rod (6) and a second connecting rod (8), the middle parts of the first connecting rod (6) and the second connecting rod (8) are rotatably connected through a rotating shaft (9), the upper end of the first connecting rod (6) is rotatably connected through a supporting shaft (7), and the lower end of the second connecting rod (8) is provided with the riveting head (4); the distance between the axis of the rotating shaft (9) and the axis of the supporting shaft (7) is consistent with the distance between the axis of the rotating shaft (9) and the middle position of the lower end of the riveting head (4).

3. The spin riveting head mechanism according to claim 2, characterized in that the lower end of the first connecting rod (6) is rotatably connected with a first linkage block (12) through a first linkage shaft (11), the upper end of the second connecting rod (8) is rotatably connected with a second linkage block (12) through a second linkage shaft (11), and the distance between the rotating shaft (9) and the first linkage shaft (11) and the distance between the rotating shaft and the second linkage shaft (11) are consistent; the first linkage block (12) and the second linkage block (12) are connected through a linkage seat (10), the linkage seat (10) can be transversely adjusted, and the first linkage shaft (11) and the second linkage shaft (11) are kept in vertically opposite positions.

4. The spin riveting head mechanism according to claim 3, characterized in that the lower end of the linkage seat (10) is provided with a first linkage groove (13), and the first linkage block (12) is slidably connected in the first linkage groove (13) and can realize up-and-down sliding adjustment; a second linkage groove (13) is formed in the upper end of the linkage seat (10), and the second linkage groove (13) is connected in the second linkage groove (13) in a sliding mode and can be adjusted in a vertical sliding mode; the linkage seat (10) can drive the first connecting rod (6) and the second connecting rod (8) to rotate and swing through transverse adjustment.

And linkage grooves (13) are formed in corresponding positions of the first connecting rod (6) and the second connecting rod (8), the linkage grooves (13) are arc-shaped and are arranged coaxially with the rotating shaft (9), and the width of each linkage groove (13) is adapted to the outer diameter of the linkage shaft (11) so as to guide the swinging and sliding of the linkage shaft (11) and limit the swinging amplitude.

5. A spin head mechanism according to claim 3, characterized in that the linkage seat (10) is elastically supported by a limiting spring (16) corresponding to two directions of lateral movement, and two ends of the limiting spring (16) respectively press against the linkage seat (10) and the inner wall of the sleeve (1).

6. The spin riveting head mechanism according to claim 3, wherein screw holes I (17) are respectively formed in two sides of the sleeve (1) corresponding to the transverse moving direction of the linkage seat (10), a screw rod I (18) is connected to the screw holes I (17) in a threaded manner, one end of the screw rod I (18) extends out of the sleeve (1), the other end of the screw rod I (18) abuts against the outer side of the linkage seat (10), and the linkage seat (10) is fixed by the abutting of the screw rods I (18) on the two sides.

7. The spin riveting head mechanism according to claim 6, characterized in that one end of the first screw (18) extending into the sleeve (1) is fixedly connected with a pressing block (19), one side of the pressing block (19) facing the linkage seat (10) is a pressing plane (20), the exterior of the linkage block (12) is also provided with an adaptive pressing plane (20), and the two pressing planes (20) are pressed against each other to realize the positioning of the linkage seat (10).

8. The spin riveting head mechanism according to claim 3, characterized in that two sides of the sleeve (1) corresponding to the linkage seat (10) are supported by a pressing block (26), and the pressing block (26) is connected with the inner wall of the sleeve (1) in a vertical sliding way through a sliding groove (27); the pressing block (26) is in a wedge shape with a large upper part and a small lower part and is provided with a first inclined surface (30) inclined towards the direction of the linkage seat (10); the upper parts of the two sides of the linkage seat (10) are provided with a second inclined surface (31) which is matched with the first inclined surface (30) in a pressing way; the first inclined plane (30) and the second inclined plane (31) are mutually abutted and jointed, and the abutting block (26) can be adjusted up and down so as to realize the transverse adjustment of the linkage block (12).

9. The spin riveting head mechanism according to claim 8, wherein the upper end of the pressing block (26) is provided with a second screw hole (28), the second screw hole (28) is internally connected with a second screw rod (29), and the upper end of the second screw rod (29) penetrates through the sleeve (1) and is connected with the sleeve (1) in a sliding manner; a supporting spring (32) is elastically connected between the pressing block (26) and the upper wall of the sleeve (1); the upper part of the sleeve (1) is provided with a lifting disc (33) which can be adjusted in a lifting way, and the lower part of the lifting disc (33) is rotatably connected with the upper end of the second screw rod (29) through a rotating seat (34); the upper part of the lifting disc (33) rotatably supports a lifting block (35) through a rotary guide slider (36), and the lifting block (35) is driven to lift through a lifting rod (39).

10. A spin riveting apparatus, comprising a riveting base (38), a lifting base (37), a rotary driver, a lifting driver and a spin riveting head mechanism according to any one of claims 1-9, wherein the lifting base (37) is mounted above the riveting base (38) through the lifting driver, the rotary driver is mounted on the lifting base (37), the rotary driver has a spin riveting shaft (25) arranged downwards, and the spin riveting head mechanism is mounted at the lower end of the spin riveting shaft (25).