WO2020056636A1

WO2020056636A1 - Automatic assembling machine and assembling method for clock base and bottom cover of clock

Info

Publication number: WO2020056636A1
Application number: PCT/CN2018/106528
Authority: WO
Inventors: 张克来; 罗建东
Original assignee: 天王电子（深圳）有限公司
Priority date: 2018-09-19
Filing date: 2018-09-19
Publication date: 2020-03-26

Abstract

An automatic assembling machine for a clock base and a bottom cover of a clock, comprising a machine frame (10); a workpiece positioning device (20) disposed on the machine frame (10) and used for placing a clock base and bottom cover to be assembled; a lifting mechanism (30) disposed on the machine frame (10); a first driving mechanism (40) disposed on the machine frame (10) and used for driving the lifting mechanism (30) to make linear up and down movements; a rotating mechanism (50) disposed on the lifting mechanism (30) and used for driving the bottom cover to rotate so that the bottom cover is screwed on the clock base; and a second driving mechanism (60) disposed on the lifting mechanism (30) and used for driving the rotating mechanism (50) to rotate. Also provided is an assembling method for the clock base and the bottom cover. The present automatic assembling machine and assembling method achieve automated operation, effectively improve product assembly efficiency and assembly quality, and avoid the problems in existing technology of inaccurate alignment, time-consuming alignment and low efficiency caused by means of manual assembly.

Description

Automatic assembly machine and assembly method for watch seat and bottom cover

Technical field

This solution belongs to the technical field of timepieces, and more specifically, it relates to an automatic assembling machine and assembling method for a watch base and a bottom cover of a timepiece.

Background technique

At present, the assembly of the base and the bottom cover of a clock (such as a watch) is mainly performed by a worker using a two-point clamp to align the slot on the bottom cover, and then press and rotate. Although it is possible to achieve a certain degree of tightening and fixing between the base and the bottom cover, the manual assembly method is easy to cause inaccurate alignment, which will cause the bottom cover to be abraded, which will affect the appearance of the product; and the alignment is time-consuming and inefficient In addition, workers tighten by hand, which is prone to inconsistent tightening force. When the tightening force is insufficient, the bottom cover cannot be completely sealed, and the clock cannot be waterproof, which causes serious consequences.

technical problem

The purpose of this solution is to provide an automatic assembling machine and assembling method for a watch base and a bottom cover of a timepiece, so as to solve the inaccurate alignment and alignment of the watch base and the bottom cover of the prior art due to manual assembly. Time-consuming and inefficient technical issues.

Technical solutions

In order to achieve the above purpose, the technical solution adopted in this solution is to provide an automatic assembling machine for a watch base and a bottom cover of the timepiece, which is used for assembling the bottom cover of the timepiece on the timepiece base; including:

frame;

A workpiece positioning device, which is arranged on the frame and used for placing a table base and a bottom cover to be assembled;

A lifting mechanism provided on the frame;

A first driving mechanism, which is arranged on the frame and is used for driving the lifting mechanism to move up and down linearly;

A rotation mechanism provided on the lifting mechanism and used for driving the bottom cover to rotate so that the bottom cover is screwed on the watch base; and,

A second driving mechanism is disposed on the lifting mechanism and is used to drive the rotating mechanism to rotate.

Further, the rotating mechanism includes a suction head for contacting the bottom cover, a vacuum device for generating a negative pressure to the suction head to suck the bottom cover, and a rotation device provided on the lifting mechanism. And a driving shaft for driving the suction head to rotate so that the suction head drives the bottom cover to rotate;

Wherein, the vacuum device includes a dynamic seal support seat provided on the frame and an air pipe joint provided on the dynamic seal support seat and used to connect with a vacuum generator, the dynamic seal support seat has an internal cavity, The tracheal joint is in communication with the internal cavity; the transmission shaft passes through the internal cavity and both ends of the transmission shaft protrude out of the dynamic seal support seat, and one end of the transmission shaft is in contact with the second The driving mechanism is connected, and the other end of the transmission shaft is sleeved with the suction head; the transmission shaft is provided with an axial air hole and a radial air hole for communication or isolation with the inner cavity, and the axial air hole In communication with the radial air hole, an internal hole is provided on the suction head, and the internal hole is in communication with the axial air hole.

Further, the vacuum device further includes two dynamic seal rings respectively disposed at two ends of the inner cavity and used to seal the inner cavity, and each of the dynamic seal rings is sleeved outside the transmission shaft, and The transmission shaft is rotatably disposed relative to the dynamic seal ring.

Further, the second driving mechanism includes a first motor and a first coupling, the first motor is disposed on the lifting mechanism, and an output shaft of the first motor is connected with the first coupling through the first coupling The transmission shaft is connected.

Further, the lifting mechanism includes a mounting base plate provided on the rack, a screw rod fixing base provided on the mounting base plate, a screw rod rotatingly mounted on the screw rod fixing base, and provided on the screw rod. A screw rod nut on the screw rod and a fixed plate connected and fixed to the screw rod nut, the first driving mechanism is drivingly connected to the screw rod to drive the screw rod to rotate, the rotating mechanism and the second The driving mechanism is disposed on the fixing plate.

Further, the lifting mechanism further includes a guide rail and a guide rail slider, the guide rail is mounted on the mounting base plate and the guide rail is arranged in parallel with the screw rod, and the guide rail slider is slidably mounted on the guide rail, And the guide rail slider is connected and fixed with the fixing plate.

Further, the first driving mechanism includes a second motor, a driving gear, a driven gear, and a second coupling. The driving gear is disposed on an output shaft of the second motor. The driving wheel is meshed, and the screw rod and the driven gear are drivingly connected through the second coupling.

Further, an upper limit switch, a lower limit switch, and a variable speed switch are provided on the mounting base plate, the upper limit switch is disposed at the top of the mounting base plate, and the lower limit switch is disposed at the bottom end of the mounting base plate. The variable speed switch is disposed between the upper limit switch and the lower limit switch.

Further, the workpiece positioning device includes a mounting plate, two baffles, a double-rotation screw, two clamping members, and an adjusting nut, and the two baffles are respectively disposed at two ends of the mounting plate. The two ends of the double-rotation screw are rotatably disposed on the two baffles, respectively, and the two ends of the double-rotation screw are respectively provided with screw segments with opposite rotation directions, and the two clamping members and two The threaded section is screwed together, and the adjusting nut is disposed at one end of the double-rotation nut and is used to drive the double-rotation nut to rotate to make the two clamping members close to each other or away from each other.

Another object of this solution is to provide an assembly method for an assembly machine for a watch base and a bottom cover of a timepiece, including the following steps:

A. The table base and the bottom cover to be assembled are placed on the workpiece positioning device for positioning;

B. Start the first driving mechanism to drive the lifting mechanism to descend until the rotating mechanism is in contact with the bottom cover;

C. The second driving mechanism is activated to drive the rotation mechanism to rotate, and the rotation mechanism drives the bottom cover to rotate so that the bottom cover is screwed onto the watch base.

Beneficial effect

The automatic assembly machine and assembly method of the watch base and bottom cover provided by this solution have the beneficial effect that, compared with the prior art, this solution uses a workpiece positioning device to place the watch base and bottom cover to be assembled, and The first driving mechanism drives the lifting mechanism to descend so that the rotating mechanism contacts the bottom cover, and uses the second driving mechanism to drive the rotating mechanism to rotate so that the rotating mechanism drives the bottom cover to rotate, and then the bottom cover is screwed onto the table base. During the operation, automatic operation is realized, which effectively improves the product assembly efficiency, and avoids the problems of inaccurate alignment, time-consuming and low efficiency caused by manual assembly in the existing technology. In addition, this solution can be based on actual needs Set the tightening torque, so that the tightening torque of the bottom cover can be kept consistent, and the assembly quality is effectively improved.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly explain the technical solutions in the embodiments of the present solution, the drawings used in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for this solution. For some embodiments, for those of ordinary skill in the art, other drawings can be obtained according to these drawings without paying creative labor.

1 is a schematic structural diagram of an automatic assembling machine for a watch seat and a bottom cover of a timepiece according to an embodiment of the present invention;

FIG. 2 is a partially enlarged schematic view at C in FIG. 1; FIG.

FIG. 3 is a partially enlarged schematic view at D in FIG. 1; FIG.

FIG. 4 is a partially enlarged schematic diagram at F in FIG. 1; FIG.

5 is a sectional structural view taken along line A-A in FIG. 1;

FIG. 6 is a partially enlarged schematic diagram at G in FIG. 5; FIG.

Figure 7 is a sectional structural view along line B-B in Figure 1;

FIG. 8 is a schematic flowchart of an assembly method of a watch seat and a bottom cover of a timepiece according to an embodiment of the present invention.

Among them, each reference numeral in the figure:

10-frame; 11-chassis; 12-touch screen; 13-base; 14-support frame; 20- workpiece positioning device; 21- mounting plate; 22- baffle; 221- second radial bearing; 23- double Turning screw; 24-clamping member; 25-adjusting nut; 26-guide block; 30-lifting mechanism; 31-mounting base plate; 311-upper limit switch; 312-lower limit switch; 313-variable switch; 32-wire Rod fixing seat; 33-screw; 34-screw nut; 35-fixing plate; 36-rail; 37-rail slider; 40-first drive mechanism; 41-second motor; 42-active gear; 43- Driven gear; 44-second coupling; 45-second motor support; 50-rotating mechanism; 51-suction head; 511-internal hole; 512-chuck; 513-clamping block; 52-vacuum device; 521-dynamic seal support; 5211-inner cavity; 522-trachea joint; 523-dynamic seal ring; 53-drive shaft; 531-axial air hole; 532-radial air hole; 54-drive shaft support; 541-cone Roller bearing; 542-first radial bearing; 543-bearing retaining ring; 60-second drive mechanism; 61-first motor; 62-first coupling; 63-first motor support base.

Embodiments of the invention

In order to make the technical problems, technical solutions, and beneficial effects to be more clearly understood by the solution, the solution will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the solution, and are not used to limit the solution.

It should be noted that when an element is called “fixed to” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as “first” and “second” may explicitly or implicitly include one or more of the features. In the description of this solution, the meaning of "multiple" is two or more, unless it is specifically and specifically defined otherwise.

In the description of this solution, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", " The orientations or positional relationships indicated by “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, etc. are based on the orientations or positional relationships shown in the drawings, and are for convenience only Describing this solution and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on this solution.

In the description of this solution, it should be noted that the terms "installation", "connected", and "connected" should be understood in a broad sense, unless explicitly stated and limited otherwise. For example, they can be fixed or removable Connected or integrated; it can be mechanical or electrical; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this solution can be understood according to specific situations.

Please refer to FIG. 1 to FIG. 7 together. Now, the automatic assembly machine for the table seat and the bottom cover of the timepiece provided by this solution will be described. An automatic assembling machine for a watch base and a bottom cover for mounting a watch bottom cover on a watch base; including a frame 10, a workpiece positioning device 20, a lifting mechanism 30, a first driving mechanism 40, and a rotating mechanism 50 And second driving mechanism 60. The workpiece positioning device 20 is disposed on the frame 10 and is used to place a table base and a bottom cover to be assembled. The lifting mechanism 30 is disposed on the frame 10 and moves linearly up and down relative to the frame 10. The first driving mechanism 40 is disposed on the frame 10 and is used to drive the lifting mechanism 30 to move up and down linearly. The rotating mechanism 50 is disposed on the lifting mechanism 30 and is used to drive the bottom cover to rotate so that the bottom cover is screwed on the watch base. The second driving mechanism 60 is disposed on the lifting mechanism 30 and is used to drive the rotation mechanism 50 to rotate.

Compared with the prior art, an automatic assembling machine for a watch base and a bottom cover provided by this solution is provided with a workpiece positioning device 20 for placing the watch base and the bottom cover to be assembled, and the first driving mechanism 40 The lifting mechanism 30 is driven to lower so that the rotation mechanism 50 contacts the bottom cover, and the second driving mechanism 60 is used to drive the rotation mechanism 50 to rotate so that the rotation mechanism 50 drives the bottom cover to rotate, and then the bottom cover is screwed on the table base, During the operation, automatic operation is realized, which effectively improves the product assembly efficiency, and avoids the problems of inaccurate alignment, time-consuming and low efficiency caused by manual assembly in the existing technology. In addition, this solution can be based on actual needs Set the tightening torque, so that the tightening torque of the bottom cover can be kept consistent, and the assembly quality is effectively improved.

Further, please refer to FIG. 1 to FIG. 3 together. As a specific implementation of the automatic assembly machine for the watch base and the bottom cover of the timepiece provided in this solution, the rotating mechanism 50 includes a suction head 51 for contacting the bottom cover. A vacuum device 52 for generating a negative pressure to the suction head 51 to suck the bottom cover, and a transmission shaft 53 which is arranged on the lifting mechanism 30 and drives the suction head 51 to rotate so that the suction head 51 drives the bottom cover to rotate. The vacuum device 52 includes a dynamic seal support base 521 provided on the frame 10 and an air pipe joint 522 provided on the dynamic seal support base 521 and used to connect with a vacuum generator (not shown). The dynamic seal support seat 521 has an inner cavity 5211, and the trachea joint 522 communicates with the inner cavity 5211. The transmission shaft 53 passes through the inner cavity 5211 and both ends of the transmission shaft 53 extend out of the dynamic seal support seat 521. One end of the transmission shaft 53 is connected to the second driving mechanism 60, and the other end of the transmission shaft 53 is sleeved with a suction head 51. The transmission shaft 53 is provided with an axial air hole 531 and a radial air hole 532 for communication or isolation with the internal cavity 5211. The axial air hole 531 extends in the axial direction of the transmission shaft 53 and the radial air hole 532 extends along the transmission shaft 53. Extending in the radial direction. The axial air hole 531 is in communication with the radial air hole 532. The suction head 51 is provided with an inner hole 511, and the inner hole 511 is in communication with the axial air hole 531. Among them, when the suction head 51 is lowered to contact the bottom cover, the radial air hole 532 is located in the inner cavity 5211 at this time, so that the inner hole 511 communicates with the air pipe joint 522, and the vacuum is generated by the vacuum generator, so that the suction head 51 can be made. A negative pressure is generated inside, so that a large friction force is generated so that the bottom cover can be firmly abutted on the lower surface of the suction head 51 and can rotate with the rotation of the suction head 51, thereby tightening the bottom cover and the table base. When the transmission shaft 53 rises, the radial air hole 532 and the inner cavity 5211 are staggered from each other, so that the inner hole 511 and the air pipe joint 522 are disconnected from each other. At this time, the suction head 51 has no friction effect on the bottom cover. Preferably, the suction head 51 may be a rubber suction head 51, which can effectively protect the bottom cover and avoid scratching the bottom cover.

Further, please refer to FIG. 1 to FIG. 3 together. As a specific embodiment of the automatic assembly machine for the watch seat and the bottom cover of the timepiece provided in this solution, the vacuum device 52 further includes two Both ends of the dynamic seal ring 523 are used to seal the inner cavity 5211. Each of the dynamic seal rings 523 is sleeved outside the transmission shaft 53, and the transmission shaft 53 is rotatably disposed relative to the dynamic seal ring 523. The dynamic sealing ring 523 can effectively seal the inner cavity 5211 and avoid the situation that the inner cavity 5211 cannot be sealed due to the gap between the inner cavity 5211 and the transmission shaft 53.

Further, please refer to FIG. 1 to FIG. 3 together. As a specific implementation of the automatic assembly machine for the watch seat and the bottom cover of the clock provided in this solution, the suction head 51 passes between the chuck 512 and the clamping block 513. It is fixed to the bottom end of the transmission shaft 53 in cooperation with fixing, and the chuck 512 and the clamping block 513 are detachably connected, which can facilitate the replacement of the suction head 51 according to actual needs.

Further, please refer to FIG. 1 to FIG. 3 together. As a specific implementation of the automatic assembly machine for the watch seat and the bottom cover of the timepiece provided in this solution, the rotation mechanism 50 further includes a drive shaft support base 54 and a drive shaft support. The seat 54 is disposed on the lifting mechanism 30, and the transmission shaft 53 is rotatably mounted on the transmission shaft support seat 54. Specifically, in this embodiment, a tapered roller bearing 541 and a first radial bearing 542 are provided in order from the bottom to the top of the transmission shaft support seat 54, and a bearing retaining ring 543 is provided on the upper side of the first radial bearing 542. The top end of the transmission shaft 53 passes through the tapered roller bearing 541, the first radial bearing 542, the bearing retaining ring 543, and is connected to the second driving mechanism 60 in this order.

Further, please refer to FIG. 1 to FIG. 3 together. As a specific implementation of the automatic assembly machine for the watch seat and the bottom cover of the timepiece provided by this solution, the second driving mechanism 60 includes a first motor 61 and a first coupling. The shaft 62 and the first motor 61 are disposed on the lifting mechanism 30. The output shaft of the first motor 61 is connected to the transmission shaft 53 through the first coupling 62. The rotation of the first motor 61 drives the transmission shaft 53 to rotate, thereby realizing the rotation of the suction head 51. Specifically, in this embodiment, the second driving mechanism 60 further includes a first motor support base 63, the first motor support base 63 is disposed on the lifting mechanism 30, and the first motor 61 is fixed on the first motor support base 63. It should be noted that the setting manner of the second driving mechanism 60 is not limited to this. For example, in other preferred embodiments of this solution, the second driving mechanism 60 may also be an air cylinder, and the straight line of the air cylinder may be straightened by a rack and pinion. The motion is converted into a rotational motion of the transmission shaft 53.

Further, please refer to FIG. 1 to FIG. 2 together. As a specific embodiment of the automatic assembly machine for the watch seat and the bottom cover of the timepiece provided by the present solution, the lifting mechanism 30 includes a mounting base plate 31 provided on the frame 10 , A screw rod fixing base 32 provided on the mounting base 31, a screw rod 33 rotatingly mounted on the screw rod fixing base 32, a screw rod nut 34 provided on the screw rod 33, and a fixing plate connected and fixed to the screw rod nut 34 35. The first driving mechanism 40 is drivingly connected to the screw rod 33 to drive the screw rod 33 to rotate. The rotating mechanism 50 and the second driving mechanism 60 are disposed on the fixed plate 35. When the bottom cover needs to be assembled on the watch base, first, the first driving mechanism 40 drives the screw rod 33 to rotate, and the fixing plate 35 is lowered as the screw nut 34 is lowered, thereby driving the rotation mechanism 50 to descend until the rotation mechanism 50 and The bottom cover contacts; then, the second driving mechanism 60 is used to drive the rotation mechanism 50 to rotate, so that the rotation mechanism 50 drives the bottom cover to rotate, and the bottom cover is screwed on the table base. Specifically, in this embodiment, the dynamic seal support seat 521 is mounted on the mounting base plate 31, the drive shaft support seat 54 and the first motor 61 support seat are provided on the fixed plate 35, and the drive shaft support seat 54 is provided on the fixed plate. At the lower end of 35, a support base for the first motor 61 is provided at the upper end of the fixing plate 35.

Further, please refer to FIG. 1 to FIG. 2 together. As a specific embodiment of the automatic assembly machine for the watch seat and the bottom cover of the timepiece provided by the present solution, the lifting mechanism 30 further includes a guide rail 36 and a guide rail slider 37, and a guide rail. 36 is mounted on the mounting base 31 and the guide rail 36 is arranged in parallel with the screw rod 33. The guide rail slider 37 is slidably mounted on the guide rail 36, and the guide rail slider 37 is fixed to the fixed plate 35. The cooperation between the guide rail 36 and the guide rail slider 37 The arrangement can make the fixing plate 35 achieve smoother lifting and avoid shaking.

Further, please refer to FIG. 1 to FIG. 2 together. As a specific implementation of the automatic assembly machine for the watch seat and the bottom cover of the timepiece provided by the present solution, the first driving mechanism 40 includes a second motor 41 and a driving gear 42 The driven gear 43 and the second coupling 44, the driving gear 42 is disposed on the output shaft of the second motor 41, the driven gear 43 meshes with the driving wheel, and the screw rod 33 and the driven gear 43 pass through the second coupling 44 drive connection. Through the cooperation of the driving gear 42 and the driven gear 43, the rotational motion of the second motor 41 can be converted into the rotational motion of the lead screw 33. Specifically, in this embodiment, the driving gear 42 and the driven gear 43 are tapered, and the direction can be changed, so that space can be used more effectively and the volume can be reduced. Preferably, the first driving mechanism 40 further includes a second motor support base 45, the second motor support base 45 is disposed on the frame 10, and the second motor 41 is fixed on the second motor support base 45. It should be noted that the setting manner of the first driving mechanism 40 is not limited to this. For example, in other preferred embodiments of the present solution, the first driving mechanism 40 may also be a cylinder, and the piston rod and the rotation mechanism of the cylinder 50 is directly connected, thereby driving the rotation mechanism 50 to rise and fall.

Further, please refer to FIG. 1, FIG. 2 and FIG. 7 together. As a specific implementation of the automatic assembly machine for the watch seat and the bottom cover of the timepiece provided in this solution, an upper limit switch 311, Lower limit switch 312 and shift switch 313. The upper limit switch 311 is disposed at the top of the mounting base 31. The lower limit switch 312 is disposed at the bottom of the mounting base 31. The shift switch 313 is disposed between the upper limit switch 311 and the lower limit switch 312. . The automatic assembly machine for the watch base and the bottom cover of the timepiece further includes a control system (not shown), and the upper limit switch 311, the lower limit switch 312 and the shift switch 313 are respectively connected to the control system. The upper limit switch 311 is used to limit the highest position where the fixed plate 35 is raised, and the lower limit switch 312 is used to limit the lowest position where the fixed plate 35 is lowered. The shift switch 313 is used to sense that the fixed plate 35 is lowered to a position where the shift switch 313 is located. When the fixed plate 35 rises to the position of the upper limit switch 311, the upper limit switch 311 sends a signal to the control system, and the control system sends a stop command to the first driving mechanism 40, thereby closing the first driving mechanism 40 to control the fixed plate 35 stops rising. When the fixed plate 35 is lowered to the position of the lower limit switch 312, the lower limit switch 312 sends a signal to the control system, and the control system sends a stop command to the first driving mechanism 40, thereby closing the first driving mechanism 40 to control the fixed plate 35 stopped falling. The setting of the upper limit switch 311 and the lower limit switch 312 can effectively protect the fixed plate 35 and avoid damage to the fixed plate 35 caused by excessive movement. When the fixed plate 35 is lowered to the position of the variable speed switch 313, the variable speed switch 313 sends a signal to the control system, and the control system sends a speed reduction command to the first driving mechanism 40 to reduce the lowering speed of the fixed plate 35, and at the same time The control system sends a start command to the second driving mechanism 60 to drive the rotating mechanism 50 to rotate, and at the same time controls the vacuum generator to start for vacuuming operation.

Further, please refer to FIG. 4, FIG. 5, and FIG. 6 together. As a specific implementation of the automatic assembly machine for the watch seat and the bottom cover of the timepiece provided in this solution, the workpiece positioning device 20 includes a mounting plate 21, two The baffle plate 22, the double-rotation screw 23, the two clamping members 24, and the adjusting nut 25. The two baffle plates 22 are respectively disposed at both ends of the mounting plate 21, and the two ends of the double-rotation screw 23 are respectively disposed at two ends. On the two baffles 22, two ends of the double-rotation screw 23 are respectively provided with screw segments with opposite rotation directions (not shown in the figure), two clamping members 24 are respectively screwed with the two screw segments, and an adjusting nut 25 is provided at One end of the double-turn nut is used for driving the double-turn nut to rotate to make the two clamping members 24 close to each other or away from each other. By rotating the adjusting nut 25, the double-rotating screw 23 is rotated, and the two clamping members 24 are brought close to each other to clamp the table base and the bottom cover, or the adjusting nut 25 is rotated reversely, so that the double-rotating screw 23 is reversely rotated. , And make the two clamping members 24 away from each other to loosen the base and the bottom cover. Preferably, the double-rotation screw 23 is respectively mounted on the two baffles 22 through two second radial bearings 221.

Further, please refer to FIG. 4, FIG. 5, and FIG. 6 together. As a specific embodiment of the automatic assembly machine for the watch seat and the bottom cover of the timepiece provided in this solution, the workpiece positioning device 20 further includes two guide blocks 26. The two guide blocks 26 are installed on the mounting plate 21 and located on both sides of the clamping member 24, so that the clamping member 24 can play a guiding role. Specifically, the cross-sectional shape of the clamping member 24 is T-shaped, and two sides of the clamping member 24 abut against the upper surfaces of the two guide blocks 26, respectively.

Further, please refer to FIG. 1 together. As a specific embodiment of the automatic assembly machine for the watch seat and the bottom cover of the timepiece provided by this solution, an organic case 11 is installed on the outside of the frame 10 to provide a protective effect. A touch screen 12 is installed on the casing 11, and a user can set related parameters through the touch screen 12, and the operation is very simple and convenient.

Further, please refer to FIG. 1 together. As a specific implementation of the automatic assembly machine for the watch seat and the bottom cover of the timepiece provided in this solution, the frame 10 includes a base 13 and a support frame 14 provided on the base 13, The workpiece positioning device 20 is mounted on the base 13, and the lifting mechanism 30 and the first driving mechanism 40 are both disposed on the support frame 14.

The working process of the automatic assembly machine of the watch seat and the bottom cover provided by this solution is as follows:

When the bottom cover needs to be assembled on the table base, first, the table base and the bottom cover are clamped and positioned by using the workpiece positioning device 20;

Secondly, start the second motor 41 so that the second motor 41 rotates in the forward direction, and drives the screw 33 to rotate rapidly through the driving gear 42 and the driven gear 43 to drive the screw nut 34 down. At this time, the fixing plate 35 follows the screw. The nut 34 is lowered, so that the transmission shaft 53 mounted on the fixed plate 35 is lowered. When the fixed plate 35 is lowered to the shift switch 313, the second motor 41 is rotated in a slow forward direction, and the fixed plate 35 is lowered slowly. Start the first motor 61, so that the transmission shaft 53 rotates in a positive direction, thereby driving the suction head 51 to rotate in a positive direction, and at the same time, the vacuum generator is started, and the vacuum is evacuated through the air pipe joint 522;

Then, when the suction head 51 is in contact with the bottom cover, the radial air hole 532 is located in the inner cavity 5211 at this time, so that the inner hole 511 communicates with the air pipe joint 522, so that the inside of the suction head 51 generates a negative pressure due to a vacuum, thereby generating The large friction force enables the bottom cover to be firmly attached to the lower surface of the suction head 51 and can rotate with the rotation of the suction head 51, thereby tightening the bottom cover and the table base.

Finally, when the tightening torque of the suction head 51 reaches the preset tightening torque, the vacuum generator is turned off, the first motor 61 stops rotating, and the second motor 41 rotates in the reverse direction to move the suction head 51 upward to disengage the bottom cover; When the fixing plate 35 is raised to the upper limit switch 311, the second motor 41 stops rotating, and the assembled bottom cover and the table base can be taken out.

Referring to FIG. 8, this solution also provides a method for assembling a watch seat and a bottom cover, which includes the following steps:

S10. The table base and the bottom cover to be assembled are placed on the workpiece positioning device for positioning.

S20. Start the first driving mechanism to drive the lifting mechanism to descend until the rotating mechanism contacts the bottom cover.

S30. Start the second driving mechanism to drive the rotation mechanism to rotate, and the rotation mechanism drives the bottom cover to rotate so that the bottom cover is screwed on the table base.

The above are only the preferred embodiments of the solution, and are not intended to limit the solution. Any modification, equivalent replacement, and improvement made within the spirit and principles of the solution shall be included in the protection of the solution. Within range.

Claims

An automatic assembling machine for a watch's base and bottom cover is used to assemble the bottom of the watch to the watch's base; its features are:

frame;

A workpiece positioning device, which is arranged on the frame and used for placing a table base and a bottom cover to be assembled;

A lifting mechanism provided on the frame;

A first driving mechanism, which is arranged on the frame and is used for driving the lifting mechanism to move up and down linearly;

A rotation mechanism provided on the lifting mechanism and used for driving the bottom cover to rotate so that the bottom cover is screwed on the watch base; and,

A second driving mechanism is disposed on the lifting mechanism and is used to drive the rotating mechanism to rotate.
The automatic assembling machine for a watch seat and a bottom cover according to claim 1, wherein the rotation mechanism includes a suction head for contacting the bottom cover, and a negative pressure for the suction head to generate. A vacuum device for sucking the bottom cover firmly, and a transmission shaft which is arranged on the lifting mechanism and is used for driving the suction head to rotate so that the suction head drives the bottom cover to rotate;

Wherein, the vacuum device includes a dynamic seal support seat provided on the frame and an air pipe joint provided on the dynamic seal support seat and used to connect with a vacuum generator, the dynamic seal support seat has an internal cavity, The tracheal joint is in communication with the internal cavity; the transmission shaft passes through the internal cavity and both ends of the transmission shaft protrude out of the dynamic seal support seat, and one end of the transmission shaft is in contact with the second The driving mechanism is connected, and the other end of the transmission shaft is sleeved with the suction head; the transmission shaft is provided with an axial air hole and a radial air hole for communication or isolation with the inner cavity, and the axial air hole In communication with the radial air hole, an internal hole is provided on the suction head, and the internal hole is in communication with the axial air hole.
The automatic assembling machine for a watch seat and a bottom cover according to claim 2, wherein the vacuum device further comprises two movements respectively disposed at two ends of the inner cavity and used to seal the inner cavity. Sealing rings, each of the dynamic sealing rings is sleeved outside the transmission shaft, and the transmission shaft is rotatably disposed relative to the dynamic seal ring.
The automatic assembling machine for a watch seat and a bottom cover according to claim 2, wherein the second driving mechanism comprises a first motor and a first coupling, and the first motor is disposed on the lift On the mechanism, the output shaft of the first motor is connected to the transmission shaft through the first coupling.
The automatic assembling machine for a watch seat and a bottom cover according to claim 1, wherein the lifting mechanism comprises a mounting base plate provided on the rack, and a screw rod fixed on the mounting base plate. A base, a lead screw rotatably mounted on the lead screw fixing base, a lead screw nut provided on the lead screw, and a fixed plate connected and fixed to the lead screw nut, the first driving mechanism and the lead wire A rod transmission is connected to drive the lead screw to rotate, and the rotating mechanism and the second driving mechanism are disposed on the fixed plate.
The automatic assembly machine for a watch seat and a bottom cover according to claim 5, wherein the lifting mechanism further comprises a guide rail and a guide rail slider, the guide rail is mounted on the mounting base plate, and the guide rail and the The screw rods are arranged in parallel, the guide rail slider is slidably mounted on the guide rail, and the guide rail slider and the fixing plate are connected and fixed.
The automatic assembling machine for a watch seat and a bottom cover according to claim 5, wherein the first driving mechanism includes a second motor, a driving gear, a driven gear, and a second coupling, and the driving A gear is disposed on the output shaft of the second motor, the driven gear meshes with the driving wheel, and the lead screw and the driven gear are drivingly connected through the second coupling.
The automatic assembling machine for a watch seat and a bottom cover according to claim 5, wherein the mounting base plate is provided with an upper limit switch, a lower limit switch, and a shift switch, and the upper limit switch is provided on the mounting base. A top end of the mounting base plate, the lower limit switch is disposed at the bottom end of the mounting base plate, and the shift switch is disposed between the upper limit switch and the lower limit switch.
The automatic assembling machine for a watch seat and a bottom cover according to any one of claims 1 to 8, wherein the workpiece positioning device includes a mounting plate, two baffles, a double-turn screw, and two clamps The holder and the adjusting nut, the two baffles are respectively disposed at two ends of the mounting plate, and the two ends of the double-rotation screw are respectively rotatably provided on the two baffles, and the double-rotation The two ends of the screw are respectively provided with screw segments with opposite rotation directions, the two clamping members are screwed with the two screw segments, respectively, and the adjusting nut is disposed at one end of the double rotation nut and is used for driving the The double-turn nut rotates to make the two clamping members close to each other or away from each other.
The method for assembling an assembly machine for a watch base and a bottom cover of a timepiece according to any one of claims 1 to 9, further comprising the following steps:

A. The table base and the bottom cover to be assembled are placed on the workpiece positioning device for positioning;

B. Start the first driving mechanism to drive the lifting mechanism to descend until the rotating mechanism is in contact with the bottom cover;

C. The second driving mechanism is activated to drive the rotation mechanism to rotate, and the rotation mechanism drives the bottom cover to rotate so that the bottom cover is screwed onto the watch base.