CN214252908U

CN214252908U - Riveting machine for mounting clock pointer

Info

Publication number: CN214252908U
Application number: CN202120697193.6U
Authority: CN
Inventors: 陈新华
Original assignee: Zhongshan Juhe Precision Machinery Co ltd
Current assignee: Zhongshan Juhe Precision Machinery Co ltd
Priority date: 2021-04-06
Filing date: 2021-04-06
Publication date: 2021-09-21
Anticipated expiration: 2031-04-06

Abstract

An object of the utility model is to provide a clock and watch gauge needle installation is with riveter soon, including riveting the subassembly, riveting the subassembly and include motor, bent axle, gear, ring gear, ball hinge, ball seat, drift installation cover and drift. The utility model discloses a but rivet machine's drift passes through ball hinge and crankshaft connection universal activity, during the use, the location pointed end of drift inlays and inserts in the core cover, through motor drive, along the ring gear activity under eccentric bent axle drives, the drift installation cover is along the first concave spherical surface activity of ball seat simultaneously, makes the drift along the repeated swing of petal type curve to the continuity point pressure that forms the pressure point gradual change makes the core cover end outwards turn over and rolls over and form continuous smooth ball-type riveting face under the rolling of drift second concave spherical surface.

Description

Riveting machine for mounting clock pointer

Technical Field

The utility model relates to a riveting machine is used in installation of clock and watch indicator.

Background

When the watch hand of the clock is installed, the core sleeve is firstly inserted into the central hole of the dial plate, then the watch hand is sleeved on the core sleeve, and then the punch of the spin riveting machine rotates axially and moves up and down to punch, so that the core sleeve expands outwards and becomes thick to complete riveting and fixing of the watch hand. The riveting method easily causes the edge of the pressed core sleeve to be rough and unsmooth, cracks appear, the attractiveness of the clock is affected, and the flaring type riveting can even cause the core sleeve to break, so that the product quality is seriously affected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a clock and watch gauge needle installation is with riveter soon, including riveting the subassembly, riveting the subassembly and include motor, bent axle, gear, ring gear, ball hinge, ball seat, drift installation cover and drift. The crankshaft is connected with a motor shaft of the motor and is driven by the motor shaft to axially rotate; the crankshaft comprises an upper crankshaft section and a lower crankshaft section, the upper crankshaft section and a motor shaft are arranged in an eccentric shaft mode, the gear is fixedly connected to the upper crankshaft section and is arranged coaxially with the upper crankshaft section, the gear ring and the motor shaft are arranged coaxially, the outer diameter of the gear is smaller than the inner diameter of the gear ring, and the gear is driven by the rotating crankshaft to rotate along the tooth meshing of the gear ring; the lower section of the crankshaft and the upper section of the crankshaft are arranged in an eccentric shaft manner; the ball seat is coaxially arranged with the lower section of the crankshaft, the bottom of the ball seat is provided with a first concave spherical surface, and the upper end of the punch mounting sleeve is provided with a convex spherical surface; the middle part of the convex spherical surface is provided with a ball hinge accommodating groove, and the ball hinge is embedded in the ball hinge accommodating groove; the lower section of the crankshaft penetrates through the ball seat and is inserted into the ball hinge, and the convex spherical surface of the punch is driven by the lower section of the crankshaft to move along the first concave spherical surface of the ball seat; the lower extreme at the drift installation cover is installed to the drift, and the lower extreme of this drift is equipped with the concave spherical surface of second, and the center of this concave spherical surface of second is equipped with the location pointed end.

The utility model discloses a but rivet machine's drift passes through ball hinge and crankshaft connection universal activity, during the use, the location pointed end of drift inlays and inserts in the core cover, through motor drive, along the ring gear activity under eccentric bent axle drives, the drift installation cover is along the first concave spherical surface activity of ball seat simultaneously, makes the drift along the repeated swing of petal type curve to the continuity point pressure that forms the pressure point gradual change makes the core cover end outwards turn over and rolls over and form continuous smooth ball-type riveting face under the rolling of drift second concave spherical surface.

Drawings

Fig. 1 is a schematic structural view of the riveting assembly of the present invention.

Fig. 2 is a partial enlarged view of the punch according to the present invention.

Fig. 3 is an exploded view of the riveting assembly of the present invention.

Fig. 4 is a schematic structural diagram of the present invention.

Fig. 5 is a schematic view of the swing trajectory of the punch according to the present invention.

Fig. 6 is a schematic view of the hand riveting operation performed by the spin riveting machine for mounting a timepiece hand according to the present invention.

Fig. 7 is a schematic structural view of the hand riveting machine for mounting a timepiece hand according to the present invention.

Detailed Description

The application scheme is further described below with reference to the accompanying drawings:

referring to fig. 1 to 7, a riveter for mounting a timepiece hand includes a riveting unit 100, an up-and-down moving drive member 200, and a table 300. The work bench 300 is located below the riveting assembly 100. The up-and-down moving driving member 200 is connected to the riveting module 100, and is used for driving the riveting module 100 to move up and down to approach or be far away from the worktable 300. The up-and-down moving driving member 200 is a longitudinal linear module.

The rivet assembly 100 includes a motor 110, a crankshaft 120, a gear 130, a ring gear 140, a ball hinge 150, a ball seat 160, a punch mounting sleeve 170, and a punch 180.

The crankshaft 120 is coupled to and driven by a motor shaft 111 of the motor 110 through a coupling 190 to perform an axial rotational motion. The crankshaft 120 includes an upper crankshaft section 121 and a lower crankshaft section 122, the upper crankshaft section 121 and the motor shaft 111 are disposed in an eccentric manner, that is, the axis a of the motor shaft 111 and the axis C of the upper crankshaft section 121 have a certain eccentricity, which is denoted as L1, and L1 is 1 mm. The gear 130 is fixedly connected to the crankshaft upper section 121 and is coaxially arranged with the crankshaft upper section; the ring gear 140 is disposed coaxially with the motor shaft 111, i.e., the axis B of the ring gear 140 is collinear with the axis a of the motor shaft 111. The outer diameter of the gear 130 is smaller than the inner diameter of the gear ring 140, and the gear 130 is driven by the rotating crankshaft 120 to rotate in the gear ring 140 along the teeth thereof in a meshing manner.

The lower section 122 of the crankshaft and the upper section 121 of the crankshaft are arranged in an eccentric shaft manner; that is, the axis D of the lower crankshaft 122 and the axis C of the upper crankshaft 121 have a certain eccentricity, which is denoted as L2, and L2 is 1 mm. The ball seat 160 is coaxially arranged with the lower crankshaft section 122, the bottom of the ball seat 160 has a first concave spherical surface 161, and the upper end of the punch mounting sleeve 170 has a convex spherical surface 171; the convex spherical surface 170 is provided with a spherical hinge accommodating groove 172 at the middle part, and the spherical hinge 150 is embedded in the spherical hinge accommodating groove 172; the ball seat 160 has a through hole 162 formed therein, the crankshaft lower section 122 is inserted into the ball hinge 150 through the ball seat 160 via the through hole 162, and the punch mounting sleeve 170 is driven by the crankshaft lower section 122 to move the convex spherical surface 170 along the first concave spherical surface 161 of the ball seat 160.

The punch 180 is mounted at the lower end of the punch mounting sleeve 170, the lower end of the punch 180 is provided with a second concave spherical surface 181, the center of the second concave spherical surface 181 is provided with a positioning tip 182, and the positioning tip 182 is conical, as shown in fig. 2.

The punch 180 of the technical scheme is connected with the crankshaft 120 through the ball hinge 150 and can move universally, when the punch is used, the positioning tip 182 of the punch 180 is embedded in the core sleeve 401 and driven by the motor 110 to move along the gear ring 140 under the driving of the eccentric crankshaft 120, and meanwhile, the punch mounting sleeve 170 moves along the first concave spherical surface 161 of the ball seat 160, so that the punch 180 repeatedly swings along a petal-shaped curve with the curvature radius from large to small and then from small to large to form continuous point pressure with gradually changed pressure points, and the tail end of the core sleeve 401 is outwards turned and rolled to form a continuous and smooth spherical riveting surface.

As shown in fig. 5, the swing path of the punch 180 is composed of a plurality of petal-shaped curves 500, and the starting points and the end points of the petal-shaped curves 500 are converged at a central point to form a flower shape. The number of the petal-shaped curves 500 can be set by changing the magnitude of the eccentricity between the axis a of the motor shaft 111 and the axis C of the upper section 121 of the crankshaft and the magnitude of the eccentricity between the axis C of the upper section 121 of the crankshaft and the axis D of the lower section 122 of the crankshaft, and can be two, three, four, five, etc.

The ball hinge 150 includes a ball socket 152 and a ball head 151 in the ball socket 152; the outer peripheral wall of the ball seat 152 abuts against the groove wall of the ball hinge accommodating groove 172; the ball head 151 is provided with a shaft hole 153, the crankshaft lower section 122 is provided with a ball head inserting column 123, the ball head inserting column 123 is inserted in the shaft hole 153 of the ball head 151, and the ball head 151 and the ball head inserting column 123 are in movable fit up and down, so that a certain height change space is formed when the punch mounting sleeve 170 obliquely swings.

As shown in fig. 6-7, the utility model discloses a spin riveting machine working process is used in the installation of clock and watch indicator:

1. placing a dial plate 400 to be assembled with a pointer on a workbench 300, fixing the work station, inserting a core sleeve 401 into a riveting hole on the dial plate 401, and sleeving the pointer 402 on the core sleeve 401;

2. driving the riveting assembly 100 to move down close to the worktable 300 by moving the driving member 200 up and down so that the pilot tip 182 of the punch 180 is inserted into the core housing 401;

3. the starting motor 110 rotates to drive the punch 180 to swing according to a flower-shaped track, and the second concave spherical surface 181 of the punch 180 performs point pressing and rolling on the upper part of the core sleeve 401 to form an outward-folded spherical riveting surface.

The above preferred embodiments should be considered as examples of the embodiments of the present application, and technical deductions, substitutions, improvements and the like similar to, similar to or based on the embodiments of the present application should be considered as the protection scope of the present patent.

Claims

1. A riveting machine for mounting a clock pointer comprises a riveting assembly, and is characterized in that the riveting assembly comprises a motor, a crankshaft, a gear ring, a ball hinge, a ball seat, a punch mounting sleeve and a punch;

the crankshaft is connected with a motor shaft of the motor and is driven by the motor shaft to axially rotate;

the crankshaft comprises an upper crankshaft section and a lower crankshaft section, the upper crankshaft section and a motor shaft are arranged in an eccentric shaft mode, the gear is fixedly connected to the upper crankshaft section and is arranged coaxially with the upper crankshaft section, the gear ring and the motor shaft are arranged coaxially, the outer diameter of the gear is smaller than the inner diameter of the gear ring, and the gear is driven by the rotating crankshaft to rotate along the tooth meshing of the gear ring;

the lower section of the crankshaft and the upper section of the crankshaft are arranged in an eccentric shaft manner;

the ball seat is coaxially arranged with the lower section of the crankshaft, the bottom of the ball seat is provided with a first concave spherical surface, and the upper end of the punch mounting sleeve is provided with a convex spherical surface; the middle part of the convex spherical surface is provided with a ball hinge accommodating groove, and the ball hinge is embedded in the ball hinge accommodating groove; the lower section of the crankshaft penetrates through the ball seat and is inserted into the ball hinge, and the convex spherical surface of the punch is driven by the lower section of the crankshaft to move along the first concave spherical surface of the ball seat;

the lower extreme at the drift installation cover is installed to the drift, and the lower extreme of this drift is equipped with the concave spherical surface of second, and the center of this concave spherical surface of second is equipped with the location pointed end.

2. The riveter for attaching a timepiece hand according to claim 1,

the ball hinge comprises a ball head seat and a ball head in the ball head seat;

the outer peripheral wall of the ball head seat is abutted against the groove wall of the ball hinge accommodating groove;

the ball head is provided with a shaft hole, the lower section of the crankshaft is provided with a ball head inserting column, and the ball head inserting column is inserted into the shaft hole of the ball head and is in movable fit with the ball head up and down.

3. The riveter for attaching a timepiece hand according to claim 1,

the eccentricity range of the axis of the motor shaft and the axis of the upper section of the crankshaft is 0.8mm-1.2 mm;

the eccentricity range of the axial line of the upper section of the crankshaft and the axial line of the lower section of the crankshaft is 0.8mm-1.2 mm.

4. The riveter for attaching a timepiece hand according to claim 1,

the crankshaft is connected with a motor shaft of the motor through a coupler.

5. The riveter for attaching a timepiece hand according to claim 1,

the device also comprises an up-and-down moving driving piece and a workbench;

the worktable is located below the riveting component, and the up-and-down moving driving piece is connected with the riveting component and used for driving the riveting component to move up and down to be close to or far away from the worktable.