Dual-drive electrically-controlled closed-loop mechanism

Abstract

The utility model discloses a dual-drive electrically-controlled closed loop mechanism, which comprises two groups of bases which are arranged at an interval, and further comprises a power part, a connecting piece and a fitting part. The number of the power parts is two, the two power parts are installed on the two bases correspondingly and arranged oppositely, each power part comprises a power source, a transmission mechanism in driving connection with the power source and a lifting seat arranged on the transmission mechanism and driven by the transmission mechanism to do lifting motion, and the two lifting seats are arranged oppositely. The power part is also provided with a photoelectric sensing system and a grating sensing system; two ends of the connecting piece are respectively connected to the two lifting seats; the attaching part is fixed to the lower end of the connecting piece. A traditional single-drive closed-loop mechanism is replaced by the dual-drive electrically-controlled closed-loop mechanism, and the attaching force of the attaching part is improved through the dual-drive electrically-controlled closed-loop mechanism. A photoelectric sensing system and a grating sensing system are arranged on the power part, so that high-precision accurate positioning of the laminating part can be realized, and the laminating precision is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to 3C industry sticking field, concretely relates to a double drive electric control's closed loop mechanism. BACKGROUND

[0002] The structure of the prior art product is single servo motor + screw rod guide rail + photoelectric sensor control sticking plate Z direction movement, and the sticking is carried out.

[0003] When large-size products are stuck, the sticking plate is generally large, and the long cantilever of the single motor drive will cause insufficient rigidity of the mechanism, thereby affecting the sticking precision. In the scene where the sticking force is large, the single motor drive mechanism will be deformed due to the too high jacking force. The single drive electric control generally uses a screw rod and a photoelectric sensor to control the position, and the position precision is not high.

[0004] Therefore, it is necessary to improve the existing closed loop mechanism. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies in the prior art, the utility model solves the technical problem to provide a double drive electric control closed loop mechanism. The purpose of designing the closed loop mechanism is to use double drive to improve the position precision and thereby improve the sticking precision.

[0006] To solve the above technical problems, the utility model realizes the following scheme: a double drive electric control closed loop mechanism of the utility model, comprising two groups of bases arranged at a distance, the closed loop mechanism further comprises:

[0007] A power part is provided, the two groups of power parts are respectively installed on the two groups of bases and are oppositely arranged, the power part comprises a power source, a transmission mechanism drivingly connected with the power source, and a lifting seat provided on the transmission mechanism and driven by the transmission mechanism to make lifting action, the two lifting seats are oppositely arranged, the power part is further provided with a photoelectric sensing system and a grating sensing system;

[0008] A connecting piece is connected to the two lifting seats at both ends;

[0009] A sticking part is fixed to the lower end of the connecting piece.

[0010] Further, the base is a rigid base.

[0011] Further, the rigid base is a marble base.

[0012] Further, the power part further comprises a bottom plate fixed to the side surface of the base, the bottom plate has double rows of guide rails arranged in the Z-axis direction, and the guide rails are slidably connected with sliding blocks.

[0013] Further, the power source comprises a servo motor, a speed reducer in driving connection with the servo motor, and the speed reducer is fixed to the bottom plate through a speed reducer mounting base.

[0014] Further, the transmission mechanism comprises:

[0015] a coupling connected with the driving end of the speed reducer;

[0016] a ball screw, a first end of the ball screw being connected with the coupling and sleeved with a bearing at a position close to the coupling, the bearing being fixed to the bottom plate through a bearing seat, and a second end of the ball screw being fixed to the bottom plate through a bearing with a seat;

[0017] a screw nut screwed with the ball screw;

[0018] a lifting seat fixed with the screw nut and connected with the sliding block.

[0019] Further, an anti-collision ring is mounted at an end of the screw nut towards the bearing with a seat, the anti-collision ring being sleeved outside the ball screw and moving synchronously with the bearing with a seat.

[0020] Further, the photoelectric sensing system comprises: a photoelectric sensor mounted at a first side edge of the bottom plate, and correspondingly, a sensing sheet capable of passing through a slot of the photoelectric sensor is mounted at a first side of the lifting seat.

[0021] Further, the grating sensing system comprises: a grating ruler mounted at a second side edge of the bottom plate, and correspondingly, a grating sensor capable of reading the position of the grating ruler is mounted at a second side of the lifting seat.

[0022] Compared with the prior art, the utility model has the beneficial effects that:

[0023] 1. The utility model adopts a double-drive electric control closed loop mechanism to replace a traditional single-drive closed loop mechanism, and the double-drive electric control closed loop mechanism improves the adhesion force of the adhesion part.

[0024] 2. The utility model further provides photoelectric sensing systems and grating sensing systems in the power part, and high-precision accurate positioning of the adhesion part can be realized, and the adhesion precision is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a closed loop mechanism structure diagram of the utility model.

[0026] Figure 2 It is a power part structure diagram of the utility model.

[0027] The labels in the drawings are: base 1, fitting part 2, connecting piece 3, servo motor 4, speed reducer 5, shaft coupling 6, speed reducer mounting seat 7, bearing seat 8, guide rail 9, screw nut 10, anti-collision ring 11, ball screw 12, bearing with seat 13, grating sensor 14, induction sheet 15, lifting seat 16, grating sensor mounting piece 17, photoelectric sensor 18, bottom plate 19. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, so that the advantages and characteristics of the present application can be more easily understood by those skilled in the art, and the protection scope of the present application can be more clearly and definitely defined. Obviously, the described embodiments of the present application are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as there is no conflict between them.

[0030] Embodiment 1: The specific structure of the present application is as follows:

[0031] Please refer to the drawings Figures 1-2 The present application discloses a double-drive electric control closed-loop mechanism, which comprises two groups of bases 1 arranged at a distance, wherein the base 1 is a rigid base, specifically a marble base. Compared with the traditional metal shell column, the marble base has low cost and high rigidity.

[0032] The closed-loop mechanism further comprises a power part, a connecting piece 3 and a fitting part 2.

[0033] The power part is provided in two groups, and the two groups of power parts are respectively installed on the two groups of bases 1 and oppositely arranged, the power part comprises a power source, a transmission mechanism drivingly connected with the power source, and a lifting seat 16 provided on the transmission mechanism and driven by the transmission mechanism to make lifting action, the two lifting seats 16 are oppositely arranged, and the power part is further provided with a photoelectric sensing system and a grating sensing system.

[0034] The connecting piece 3 is respectively connected to the two lifting seats 16 at both ends, the connecting seat 3 follows the lifting seat 16 to make lifting action, and the connecting seat 3 is provided in a hollow structure.

[0035] The fitting part 2 is fixed to the lower end of the connecting piece 3, and the fitting part 2 is connected to the lower end of the connecting piece 3 through bolts and nuts. The fitting part 2 follows the connecting piece 3 to make synchronous lifting action.

[0036] As Figure 2 shown, the power part further includes a bottom plate 19 fixed to the side of the base 1, the bottom plate 19 has double rows and Z-axis arranged guide rails 9, the guide rails 9 are slidably connected with sliding blocks;

[0037] The power source includes a servo motor 4, and a speed reducer 5 drivingly connected with the servo motor 4, and the speed reducer 5 is fixed to the bottom plate 9 through a speed reducer mounting seat 7.

[0038] The transmission mechanism comprises:

[0039] A shaft coupling 6 is connected with the driving end of the speed reducer 5;

[0040] A ball screw 12, a first end of the ball screw 12 is connected with the shaft coupling 6 and sleeved with a bearing at a position close to the shaft coupling 6, the bearing is fixed to the bottom plate 9 through a bearing seat 8, and a second end of the ball screw 12 is fixed to the bottom plate 9 through a bearing with seat 13;

[0041] A screw nut 10 is screwed with the ball screw 12;

[0042] A lifting seat 16 is fixed with the screw nut 10 and further connected with the sliding block.

[0043] The screw nut 10 is provided with an anti-collision ring 11 at an end close to the bearing with seat 13, the anti-collision ring 11 is sleeved on the ball screw 12 and moves synchronously with the bearing with seat 13.

[0044] The structure of the photoelectric sensing system is that a photoelectric sensor 18 is installed on the first side edge of the bottom plate 9, and correspondingly, a sensing sheet 15 capable of passing through the slot of the photoelectric sensor 18 is installed on the first side of the lifting seat 16. When the sensing sheet 15 passes through the slot of the photoelectric sensor 18, the position of the lifting seat 16 can be sensed.

[0045] The structure of the grating sensing system is that a grating ruler is installed on the second side edge of the bottom plate 9, and correspondingly, a grating sensor 14 capable of reading the position of the grating ruler is installed on the second side of the lifting seat 16. The grating sensor 14 is fixed to the corner of the lifting seat 16 through a grating sensor mounting piece 17. The grating ruler can be read by the grating sensor 14. The grating sensing system can accurately sense the moving distance of the lifting seat 16, and the control system can accurately control the working time of the servo motor 4.

[0046] Embodiment 2:

[0047] The working process of the closed-loop mechanism is as follows:

[0048] Two servo motors 4 are synchronously started, drive the speed reducer 5 to work, the driving end of the speed reducer 5 drives the coupling 6 to rotate, the coupling 6 drives the ball screw 12 to rotate, the ball screw 12 drives the screw nut 10 to lift, the screw nut 10 drives the lifting seat 16 to lift, the lifting seat 16 drives the connecting piece 3 to lift, and the connecting piece 3 drives the lamination part 2 to lift to realize the lamination purpose.

[0049] In conclusion, the utility model discloses a double drive electric control closed loop mechanism instead of traditional single drive closed loop mechanism, and the double drive electric control closed loop mechanism improves the lamination force of the lamination part.The utility model also sets up photoelectric sensing system and grating sensing system in the power part, can realize high-precision accurate positioning of the lamination part, and improves the lamination precision.

[0050] The above-mentioned is only the preferred implementation mode of the utility model, and does not limit the patent range of the utility model, and equivalent structure or equivalent flow conversion of the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, are all included in the patent protection range of the utility model.

Claims

1. A double drive electrically controlled closed loop mechanism comprising two groups of bases (1) arranged at a distance, characterized in that, The closed-loop mechanism further comprises: a power unit, which is provided in two groups, and is respectively installed on the two groups of bases (1) and oppositely arranged, the power unit comprises a power source, a transmission mechanism drivingly connected with the power source, and a lifting seat (16) provided on the transmission mechanism and driven by the transmission mechanism to perform lifting action, the two lifting seats (16) are oppositely arranged, the power unit is further provided with an optical-electricity sensing system and an optical grating sensing system; a connecting piece (3) connected to the two lifting seats (16) at both ends respectively; a fitting part (2) fixed to the lower end of the connecting piece (3).

2. A dual drive electrically controlled closed loop mechanism according to claim 1, wherein, The base (1) is a rigid base.

3. A dual drive electrically controlled closed loop mechanism according to claim 2, wherein, The rigid base is a marble base.

4. A dual drive electrically controlled closed loop mechanism according to claim 1, wherein, The power unit further comprises a bottom plate (19) fixed to the side surface of the base (1), the bottom plate (19) has double rows of guide rails (9) arranged in the Z-axis direction, and the guide rails (9) are slidably connected with sliding blocks.

5. A dual drive electrically controlled closed loop mechanism according to claim 4, wherein, The power source comprises a servo motor (4) and a speed reducer (5) drivingly connected with the servo motor (4), and the speed reducer (5) is fixed to the bottom plate (9) through a speed reducer mounting seat (7).

6. A dual drive electrically controlled closed loop mechanism according to claim 5, wherein, The transmission mechanism comprises: a shaft coupling (6) connected with the driving end of the speed reducer (5); a ball screw (12), a bearing is sleeved on the first end of the ball screw (12) and close to the shaft coupling (6), the bearing is fixed to the bottom plate (9) through a bearing seat (8), and the second end of the ball screw (12) is fixed to the bottom plate (9) through a bearing with seat (13); a screw nut (10) screwed with the ball screw (12); a lifting seat (16) fixed with the screw nut (10) and connected with the sliding block.

7. A dual drive electrically controlled closed loop mechanism according to claim 6, wherein, The screw nut (10) is provided with an anti-collision ring (11) at one end close to the bearing with seat (13), the anti-collision ring (11) is sleeved on the ball screw (12) and moves synchronously with the bearing with seat (13).

8. A dual drive electrically controlled closed loop mechanism according to claim 6, wherein, The structure of the optical-electricity sensing system is that an optical-electricity sensor (18) is installed on the first side edge of the bottom plate (9), and correspondingly, an induction sheet capable of passing through the slot of the optical-electricity sensor (18) is installed on the first side of the lifting seat (16).

9. A dual drive electrically controlled closed loop mechanism according to claim 6, wherein, The structure of the optical grating sensing system is that an optical grating ruler is installed on the second side edge of the bottom plate (9), and correspondingly, an optical grating sensor (14) capable of reading the position of the optical grating ruler is installed on the second side of the lifting seat (16).

Images