CN114985665A - a riveted head - Google Patents

Abstract

The present application relates to the technical field of riveting, in particular to a riveting head, comprising a riveting seat and a riveting head. A forming groove is formed at the end of the riveting head, and a sleeve is sleeved on the outer side of the riveting seat, and the sleeve is the same as the riveting head. An installation hole is formed through the shaft, and a needle gauge for detecting the coaxiality of the rivet head is fixed in the installation hole. In the initial state, the tip of the needle gauge is inserted into the forming groove of the rivet head, and the outer side of the sleeve is There is also a scale for measuring the inclination angle of the rivet head. Through the above scheme, the whole process does not need to use optical instruments for detection, and no need to install fixtures. It only needs to select the sleeve and needle gauge of the corresponding rivet head to achieve fast detection, which improves the detection efficiency.

Description

a riveted head

technical field

The present application relates to the technical field of riveting, and in particular, to a riveting head.

Background technique

Riveting is a very widely used connection method today, especially in the aerospace field, where a large number of riveting processes are required in the assembly process of products. Usually some are completely connected, and riveting is usually used for the assembly of parts that do not need to be disassembled later, so that the two sub-parts are riveted together.

Existing auto parts manufacturers, in the production process, mainly riveted the brake joint and the lining core. It is known that the end of the rivet head is formed with a forming groove, and different parts riveting processes have different effects on the eccentric angle of the rivet head, The requirements for coaxiality and position tolerance are different, so before each riveting, the coaxiality and positional deviation of the riveting head should be checked for compliance.

Existing optical measuring instruments are usually used for testing. It is known that a large number of positioning fixtures are required for testing with professional testing instruments, and the process of installing and dismounting positioning fixtures for each machine takes a long time. This operation method will be serious. Slow down the processing of the assembly line.

SUMMARY OF THE INVENTION

In order to improve the processing process of the assembly line, reduce the waste of time, and facilitate the rapid detection of the riveting head, the present application provides a riveting head.

A kind of riveting head provided by the application adopts the following technical scheme:

A riveting head comprises a riveting seat and a riveting head, the end of the riveting head is provided with a forming groove, the outer side of the riveting seat is sleeved with a sleeve, and the sleeve is coaxially penetrated with an installation hole, and the installation A needle gauge for detecting the coaxiality of the rivet head is fixed in the hole. In the initial state, the tip of the needle gauge is inserted into the forming groove of the rivet head, and the outer side of the sleeve is also marked with a gauge for measuring the inclination angle of the rivet head. scale.

By adopting the above technical solutions, the needle gauge can detect the concentricity of the rivet head, and at the same time, the needle gauge can achieve the effect of positioning the rivet head relative to the sleeve. Based on this, the sleeve is customized. By observing the distance between the needle gauge and the sleeve, it can be judged whether the inclination angle of the rivet head meets the processing standard. If the needle gauge can be inserted into the rivet head, it means that the size and inclination of the rivet head are correct, otherwise fine-tuning is required; the whole process does not require Using optical instruments to detect, no need to install fixtures, just select the customized sleeve and pin gauge of the corresponding rivet head to achieve fast detection, which improves the detection efficiency.

Optionally, the rivet seat includes a shaft seat formed with an installation groove, a connecting flange disposed outside the shaft seat, and a bearing shaft rotatably disposed in the shaft seat, and the installation groove is inclined along its own axis, so The outer side of the bearing shaft is coaxially sleeved with two angular contact ball bearings, the angular contact ball bearings are installed in the installation groove, a bearing washer is arranged between the two angular contact ball bearings, and the rivet head is installed At the end of the bearing shaft that protrudes out of the mounting slot.

By adopting the above technical scheme, the plane thrust ball bearing and the deep groove ball bearing in the original design are optimized into two sets of identical angular contact bearings. At the same time, the load factor is increased on the basis of the original load, on the one hand, the processing performance of the rivet head is improved, and on the other hand, the processing technology of the rivet head reduces the complex characteristics of the types of parts.

Optionally, an observation port is further opened through the outer side of the sleeve, and a transparent plate is installed in the observation port.

By adopting the above technical solution, through the observation port, it is possible to clearly see whether the needle gauge and the rivet head are inserted, and whether the needle gauge positions the rivet head, so as to ensure the accuracy of detection.

Optionally, there are several rivet heads, one end of the bearing shaft extending out of the installation groove is used to abut the rivet head, and one end of the bearing shaft extending out of the installation groove is also provided with an installation shell, the A wheel disc is rotatably connected in the installation shell, and a plurality of the rivet heads slide on the wheel disc. The several rivet heads are evenly spaced and distributed in a circle. The wheel disc is provided with an elastic piece for resetting the rivet head. A connecting component is arranged between the end of the bearing shaft and the rivet head, and an adjusting component that drives the wheel disc to rotate at a certain angle is also arranged on the mounting shell.

By adopting the above technical solution, there are several riveting heads. According to different riveting processes, the riveted forms are divided into flat type, conical type, round chord type, flanging type, outer flanging type, retracting type and so on. Different rivet heads correspond to different rivet head end shapes. According to the required requirements, the wheel disc is driven to rotate through the adjustment component, so that the corresponding rivet head is located directly under the connection component, so that it is more convenient for the end of the bearing shaft to press the corresponding rivet head in the direction. Next, realize different riveting forms.

Optionally, the elastic member is a first spring, a through hole for the vertical sliding of the rivet head is formed on the upper surface of the wheel disc, the first spring is coaxially sleeved on the outer side of the rivet head, and the One end of the first spring is fixed on the outer side of the rivet head, and the other end is fixed on the inner wall of the through hole.

By adopting the above technical solution, on the one hand, the first spring facilitates the reset of the rivet head after sliding without any abutting effect, and on the other hand makes the sliding of the rivet head more stable and difficult to escape from the through hole.

Optionally, the connecting assembly includes a first guide plate, a second guide plate fixed on one end of the rivet head facing the bearing shaft, and a latching member disposed at the end of the bearing shaft for clamping the riveting head, the first guide plate, The second guide plate is arranged symmetrically, and one end of the rivet head facing the bearing shaft is provided with a positioning groove for cooperating with the positioning member.

By adopting the above technical solution, the retaining member at the end of the bearing shaft slides along the length direction of the first guide plate and the second guide plate, so that it is more convenient for the end of the bearing shaft to press the corresponding rivet head vertically downward, so as to facilitate the Riveting operation.

Optionally, the latching member includes a ball rotatably connected to the end of the bearing shaft, a second spring for abutting the ball, a groove is formed at one end of the bearing shaft facing the rivet head, and the ball is rotatably connected to the rivet head. At the open end of the groove, one end of the second spring is fixed on the inner wall of the groove, and the other end abuts on the outside of the ball.

By adopting the above technical solution, the wheel is rotated so that the corresponding rivet head is located directly below the ball, and the ball is clamped in the groove of the corresponding rivet head, thereby restricting the free rotation of the rivet head, and at the same time, sound will be generated during the clamping process. , it is convenient for the staff to judge that the ball has been stuck in the groove.

Optionally, the adjustment assembly includes a ring gear coaxially fixed on the outer side of the wheel disc, a gear rotatably connected in the installation shell for use with the ring gear, a worm wheel rotatably connected in the installation shell, and rotatably connected in the installation shell with the gear ring. The worm gear is used in conjunction with the worm gear, and the gear and the worm gear are coaxially and fixedly connected.

By adopting the above technical solution, the worm is rotated so that the worm meshes with the worm wheel and rotates, so that the worm wheel and the gear rotate coaxially, and the gear meshes with the ring gear to rotate, thereby realizing the rotation of the wheel disc.

To sum up, the present application includes at least one of the following beneficial technical effects:

1. By setting the needle gauge and the sleeve, the whole process does not need to use optical instruments to detect, and does not need to install the fixture, just select the customized sleeve and needle gauge of the corresponding rivet head to achieve quick detection, which improves the detection efficiency.

2. The plane thrust ball bearing and deep groove ball bearing in the original design are optimized into two sets of identical angular contact bearings. At the same time, the load factor is increased on the basis of the original load, on the one hand, the processing performance of the rivet head is improved, and on the other hand, the processing technology of the rivet head reduces the complex characteristics of parts.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of the first embodiment.

FIG. 2 is a schematic diagram of the overall structure of the part of the installation shell in the second embodiment.

FIG. 3 is a schematic diagram of the internal structure of the installation shell in the second embodiment.

FIG. 4 is an exploded view of the overall structure of the adjustment assembly in the second embodiment.

Reference signs: 1, rivet seat; 2, rivet head; 3, forming groove; 4, sleeve; 5, mounting hole; 6, needle gauge; 7, shaft seat; 8, connecting flange; 9, bearing shaft; 10. Installation groove; 11. Angular contact ball bearing; 12. Bearing washer; 13. Observation port; 14. Installation shell; 15. Wheel disc; 16. Connection assembly; 17. Adjustment assembly; 18. First spring; 19. Through hole; 20, first guide plate; 21, second guide plate; 22, clamping part; 24, positioning groove; 25, ball; 26, second spring; 27, groove; 28, ring gear; 29, gear; 30, worm gear; 31, worm.

Detailed ways

The present application will be further described in detail below in conjunction with accompanying drawings 1-4.

The embodiment of the present application discloses a riveting head.

Example 1:

1 , a riveting head includes a rivet seat 1 and a rivet head 2. The end of the rivet head 2 is provided with a forming groove 3, and the outer side of the rivet seat 1 is coaxially sleeved with a sleeve 4, and the sleeve 4 is coaxially provided with a The installation hole 5, and the pin gauge 6 is fixed in the installation hole 5, and each rivet head 2 is correspondingly provided with a set of sleeve 4 and pin gauge 6, so that in the actual working condition, the pin gauge 6 is coaxially inserted in advance. In the forming groove 3 of the rivet head 2, the needle gauge 6 is used to measure the concentricity of the rivet head 2, and the distance between the needle gauge 6 and the side wall of the sleeve 4 is used to detect the inclination angle of the rivet head 2. Observe the scale marked on the outside of the sleeve 4 to judge the installation inclination of the rivet head 2. When the pin gauge 6 can be completely coaxially inserted into the forming groove 3 of the rivet head 2, it means that the installation of the rivet head 2 meets the riveting requirements. Otherwise, it does not meet the requirements, and the rivet head 2 needs to be readjusted.

Referring to Fig. 1, at the same time, in order to make it easier for the installer to observe whether the rivet head 2 is installed properly, an observation port 13 is provided through the side wall of the sleeve 4, and there are two observation ports 13, and the two observation ports 13 are arranged symmetrically. , a transparent plate is fixed in the observation port 13 , through which the staff can clearly observe the matching situation of the needle gauge 6 and the rivet head 2 .

1, the riveting seat 1 includes a shaft seat 7, a connecting flange 8 and a bearing shaft 9. One end of the shaft seat 7 is formed with a mounting groove 10, and the other end is closed. The end portion is extended, and the installation groove 10 is eccentrically arranged, so that the wall thickness of a part of the arc segment of the installation groove 10 is larger than that of the other part.

Referring to FIG. 1 , the connecting flange 8 is fixedly arranged on the end side wall of the shaft seat 7, and the bearing shaft 9 is rotatably connected in the installation groove 10. In order to ensure the stability of the rotation of the bearing shaft 9, the outer side of the bearing shaft 9 is coaxial An angular contact ball bearing 11 is provided. The angular contact ball bearing 11 combines the characteristics of a ball bearing and an angular contact bearing. The angular contact ball bearing 11 is provided with two groups. The two groups of angular contact ball bearings 11 are symmetrically arranged. The process is simplified, and the complex characteristics of assembly materials are also simplified.

1, a bearing washer 12 is provided between two angular contact ball bearings 11. The bearing washer 12 is divided into an inner washer and an outer washer, and the inner washer is coaxially arranged inside the outer washer. Since the force of the angular contact ball bearing 11 is One-way, so that it is more convenient to transmit the pressing force through the bearing shaft 9 to the part of the rivet head 2 in one direction, so as to improve the performance of riveting.

Embodiment 2:

Referring to FIGS. 1 and 2 , the difference between the second embodiment and the first embodiment is that in order to avoid frequent replacement of the riveting head 2 during the riveting process, a mounting shell 14 is provided at the end of the bearing shaft 9 extending out of the mounting groove 10 , the sleeve 4 is sleeved on the outside of the mounting shell 14 .

3 and 4, the mounting shell 14 is provided with an arc-shaped hole that facilitates a single rivet head 2 to protrude out of the mounting shell 14, the end of the bearing shaft 9 facing the rivet head 2 is located in the mounting shell 14, and the mounting shell 14 is fixed on the bearing on the end wall of the shaft 9. A wheel disc 15 is rotatably connected to the mounting shell 14. A plurality of through holes 19 are formed through the upper surface of the wheel disc 15, and the plurality of through holes 19 are evenly spaced along the circumference of the wheel disc 15. There are several rivet heads 2 and the number of through holes 19 are equal, and the shape of the end of each rivet head 2 is different. According to different riveting processes, the shape of the end of the rivet head 2 is divided into flat type, conical type , round string type, flanging type, outer flanging type, retracting type, the rivet head 2 slides vertically in the through hole 19, and the end of the bearing shaft 9 is used to squeeze the upper end of the rivet head 2.

Referring to FIG. 4 , in order to ensure the stability of the vertical sliding of the rivet head 2 and to make the rivet head 2 return to its original position after the rivet head 2 is squeezed, when the wheel disc 15 is driven to rotate, an elastic The elastic member is preferably set as a first spring 18, one end of the first spring 18 is fixed on the inner wall of the through hole 19, and the other end is fixed on the side wall of the rivet head 2.

3 and 4 , in order to facilitate the replacement of the rivet head 2 , an adjustment assembly 17 for driving the wheel disc 15 to rotate is provided on the installation shell 14 , and the adjustment assembly 17 includes a ring gear 28 , a gear 29 , a worm wheel 30 and a worm 31 , the ring gear 28 is coaxially fixed on the outer side of the wheel disc 15, the gear 29 is rotatably connected in the inner cavity of the installation shell 14, the gear 29 and the ring gear 28 are meshed with each other, the worm wheel 30 is rotatably connected in the installation shell 14, and the worm wheel 30 and the The mounting shell 14 is coaxially and fixedly connected, the worm 31 is rotatably connected in the mounting shell 14, and the worm 31 and the worm wheel 30 are meshed with each other. The wheel 15 rotates to realize the selection of the rivet head 2 .

3 and 4 , a connecting assembly 16 is also provided between the end of the bearing shaft 9 and the rivet head 2 , and the connecting assembly 16 includes a first guide plate 20 , a second guide plate 21 and a catch member disposed at the end of the bearing shaft 9 22. The first guide plate 20 and the second guide plate 21 are arranged symmetrically around the axis of the rivet head 2, the first guide plate 20 is bent downward, and the fixed part of the first guide plate 20 and the top of the rivet head 2 is in the shape of an arc , and in order to better make the end of the bearing shaft 9 squeeze the rivet head 2, a positioning groove 24 is opened at the top of the rivet head 2, and the positioning groove 24 is located between the first guide plate 20 and the second guide plate 21. The upper end is flared.

Referring to FIG. 4 , in order to make the bearing shaft 9 squeeze the rivet head 2 better, the retaining member 22 provided at the bearing end of the bearing shaft 9 includes a ball 25 and a second spring 26 , and the bearing shaft 9 opens toward one end of the rivet head 2 There is a groove 27, the second spring 26 is located in the groove 27, the ball 25 is rotatably connected to the port of the groove 27, the opening diameter of the groove 27 is smaller than the diameter of the groove 27, and the ball 25 can rotate at the port of the groove 27 , one end of the second spring 26 abuts on the inner wall of one end of the groove 27 facing the ball 25, and the other end of the second spring 26 abuts on the side wall of the ball 25, so as to drive the wheel 15 to rotate, the ball 25 moves along the Slide along the length direction of the first guide plate 20 and the second guide plate 21 until they are locked into the corresponding grooves 27 .

In the second embodiment, the implementation principle of a riveting head is as follows: according to the processing requirements in advance, the wheel disc 15 is driven to rotate, and a suitable riveting head 2 is selected until the corresponding riveting head 2 rotates to just below the end of the bearing shaft 9, and the ball 25 is clamped in the groove 27. At this time, under the action of the bearing shaft 9, the first spring 18 is compressed. In the process of head 2, take out the corresponding customized sleeve 4, set the sleeve 4 on the outside of the riveting seat 1, and observe whether the needle gauge 6 is completely coaxially inserted into the forming groove 3, and the detection can be realized. In the process of processing, the time is greatly shortened and the waste of time is reduced.

The above are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore: all equivalent changes made according to the structure, shape and principle of the present application should be covered within the scope of the present application. Inside.

Claims (8)

1. The utility model provides a rivet head, includes rivet seat (1), rivet head (2), its characterized in that: the riveting head (2) end part is provided with a forming groove (3), the outer side sleeve of the riveting seat (1) is provided with a sleeve (4), the sleeve (4) coaxially penetrates through a mounting hole (5), a needle gauge (6) used for detecting the coaxiality of the riveting head (2) is fixed in the mounting hole (5), the tip of the needle gauge (6) is inserted in the forming groove (3) of the riveting head (2) in an initial state, and scales used for measuring the inclination angle of the riveting head (2) are marked on the outer side of the sleeve (4).

2. A rivet head according to claim 1, wherein: rivet seat (1) including the shaping have axle bed (7) of mounting groove (10), set up flange (8), the rotation that sets up in axle bed (7) outside bearing axle (9) in axle bed (7), mounting groove (10) are the slope setting along self axial, the coaxial cover in outside that bears axle (9) is equipped with two angular contact ball bearing (11), angular contact ball bearing (11) are installed in mounting groove (10), two be provided with bearing washer (12) between angular contact ball bearing (11), rivet head (2) are installed and are being born the one end that axle (9) stretches out the mounting groove (10) outside.

3. A rivet head according to claim 1, wherein: the outside of sleeve (4) still runs through and has seted up observation mouth (13), install the transparent plate in observing mouth (13).

4. A rivet head according to claim 2, wherein: rivet (2) are provided with a plurality of, bear axle (9) and stretch out the outer one end of mounting groove (10) and be used for butt rivet (2), bear axle (9) and stretch out the outer one end of mounting groove (10) and still be provided with installation shell (14), installation shell (14) internal rotation is connected with rim plate (15), a plurality of rivet (2) all slides on rim plate (15), a plurality of rivet (2) interval evenly is circular distribution, be provided with the elastic component that is used for rivet (2) to reset on rim plate (15), it is provided with coupling assembling (16) to bear between axle (9) tip and the rivet (2), still be provided with on installation shell (14) and order about rim plate (15) fixed angle pivoted adjusting part (17).

5. A rivet head according to claim 4, wherein: the elastic piece is a first spring (18), a through hole (19) used for vertical sliding of the rivet head (2) is formed in the upper surface of the wheel disc (15) in a penetrating mode, the outer side of the rivet head (2) is coaxially sleeved with the first spring (18), one end of the first spring (18) is fixed to the outer side of the rivet head (2), and the other end of the first spring is fixed to the inner wall of the through hole (19).

6. A rivet head according to claim 4, wherein: coupling assembling (16) are including fixing first baffle (20), second baffle (21) that bear axle (9) one end towards rivet (2) and set up screens piece (22) that are used for joint rivet (2) bearing axle (9) tip, first baffle (20), second baffle (21) are the symmetry and set up, rivet (2) are offered towards the one end that bears axle (9) and are used for constant head tank (24) with screens piece (22) cooperation use.

7. A rivet head according to claim 6, wherein: the clamping piece (22) comprises a ball (25) rotatably connected to the end of the bearing shaft (9) and a second spring (26) used for abutting against the ball (25), a groove (27) is formed in one end, facing the rivet head (2), of the bearing shaft (9), the ball (25) is rotatably connected to the opening end of the groove (27), one end of the second spring (26) is fixed to the inner wall of the groove (27), and the other end of the second spring abuts against the outer side of the ball (25).

8. A rivet head according to claim 4, wherein: adjusting part (17) including coaxial gear ring (28), the rotation connection of fixing in rim plate (15) the outside gear ring (28), rotate gear (29), the rotation connection of using in installation shell (14) and with the cooperation of gear ring (28) worm wheel (30), rotate worm (31) of connecting in installation shell (14) and using with worm wheel (30) cooperation, gear (29) and worm wheel (30) coaxial fixed connection.

Images