Robot screw locking equipment

Abstract

The utility model provides robot screw locking equipment, and relates to the technical field of screw locking equipment, a screw locking mechanism comprises a main body mounting rod, an I-shaped support and a screwing driving shaft, a steering motor is mounted at the bottom of the main body mounting rod, and a rotating disc is fixed at the bottom of a rotating shaft of the steering motor; an opening in the top end of the vertical discharging pipe extends upwards and penetrates through the turntable; the I-shaped support is fixed below the bottom of the main body mounting rod, the I-shaped support is jointly composed of a horizontal supporting rod, a vertical supporting feeding pipe and a positioning shaft sleeve, the vertical supporting feeding pipe and the positioning shaft sleeve are symmetrically welded to the two ends of the horizontal supporting rod, and a screwing driving shaft is rotationally installed on the positioning shaft sleeve in a penetrating mode. The vertical discharging pipe and the vertical supporting feeding pipe are installed in a split mode, in the using process, the vertical discharging pipe can be rotationally arranged at the bottom of the vertical supporting feeding pipe and is in direct butt joint communication with the vertical supporting feeding pipe to convey and discharge screws, a discharging channel is straight and smooth, Y-shaped bending does not exist, and the probability that the screws are clamped and blocked can be greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of screw locking equipment, in particular to a robot screw locking equipment. Background Art

[0002] The screw locking robot is an intelligent locking device that can automatically tighten fine screws. Compared with traditional automatic screw locking machines, the biggest advantage of this device is its accuracy. It can be widely used in electronics, medical, aviation and other fields to improve production efficiency and quality.

[0003] Existing screw locking equipment such as Figure 6 As shown, the upper feed pipe is mostly welded and connected to the vertical feed pipe at an angle, and the feed pipe and the vertical feed pipe are in a Y-shaped structure as a whole. As a result, when conveying longer screws from the feed pipe to the vertical feed pipe, the screws are easily stuck in the Y-shaped connecting part between the feed pipe and the vertical feed pipe and cannot be discharged normally, affecting the normal and effective use of the equipment. Utility Model Content

[0004] In view of this, the utility model provides a robot screw locking device to solve the problem that the feed pipe is often fixed and connected with the vertical feed pipe by oblique welding, which causes the screws to be easily stuck in the Y-shaped connecting part between the feed pipe and the vertical feed pipe and cannot be fed normally, thus affecting the normal and effective use of the equipment.

[0005] The technical solution proposed by the utility model is: a robot screw locking device, specifically comprising a multi-axis robot, wherein a screw locking mechanism is installed at the head end of the multi-axis robot mechanical arm;

[0006] The screw locking mechanism includes a main body mounting rod, an I-shaped bracket and a screw driving shaft. A steering motor is installed at the bottom of the main body mounting rod. A turntable is fixed at the bottom of the steering motor shaft, and a vertical feed pipe is welded at the outer circumference of the turntable. The top opening of the vertical feed pipe extends upward and penetrates the turntable. The I-shaped bracket is fixed below the bottom of the main body mounting rod. The I-shaped bracket is composed of a horizontal support rod and a vertical support feed pipe and a positioning sleeve symmetrically welded at both ends of the horizontal support rod, wherein the screw driving shaft is rotatably installed on the positioning sleeve.

[0007] The steering motor is used for rotating and driving the vertical feeding pipe to switch alternately between the vertical supporting feeding pipe and the positioning shaft sleeve.

[0008] Furthermore,

[0009] An arc-shaped mounting plate is welded to the top end of the main body mounting rod, and the arc-shaped mounting plate is fixedly connected to the head end of the multi-axis robot mechanical arm by screw locking.

[0010] Furthermore,

[0011] A U-shaped connecting frame is welded to the bottom of the main body mounting rod, and the bottom end of the U-shaped connecting frame is welded and fixed to the I-shaped bracket.

[0012] Furthermore,

[0013] An electric push rod is fixedly mounted on the positioning sleeve, a tightening motor is invertedly mounted on the top end of the telescopic rod of the electric push rod, and a rotating shaft of the tightening motor is axially connected with a screwing drive shaft for transmission.

[0014] Furthermore,

[0015] Two semicircular limiting sleeves are symmetrically rotated and installed at the bottom of the vertical feeding pipe, and a conical stopper is welded in the bottom opening of the two semicircular limiting sleeves.

[0016] Furthermore,

[0017] The bottom part of the vertical feeding tube is symmetrically welded with two horizontal mounting plates, the rotating shafts of the two semicircular limiting sleeves are correspondingly penetrated and rotated with the two end parts of the two horizontal mounting plates, and one end of the rotating shaft of the two semicircular limiting sleeves is provided with a reset coil spring.

[0018] Furthermore,

[0019] A positioning sleeve is welded on the end of the two semicircular limit sleeve rotating shafts away from the reset coil spring, and a positioning square rod is welded on the horizontal mounting plate close to the side of the positioning sleeve, and a positioning insert frame is installed on the positioning square rod through spring pushing and sliding;

[0020] The positioning sleeve is provided with a hexagonal insertion hole.

[0021] Furthermore,

[0022] The positioning frame is in a U-shaped structure, and the head end of the positioning frame is in a hexagonal structure. The head end of the positioning frame is correspondingly plugged and matched with the two positioning sleeves.

[0023] Furthermore,

[0024] An L-shaped stress-bearing rod is welded at the middle position of the top of the positioning insert frame, and the top end of the L-shaped stress-bearing rod is an oblique section structure;

[0025] A vertical slide groove is provided on the circumferential outer wall of the vertical feed pipe, and the oblique section of the head end of the L-shaped force-bearing rod is inserted and matched with the vertical slide groove;

[0026] When the screw driving shaft slides downward, it comes into contact with the oblique section of the L-shaped force-bearing rod protruding from the inner side of the vertical feeding pipe.

[0027] The utility model provides a robot screw locking device, which has the following beneficial effects:

[0028] The vertical discharge pipe and the vertical support feeding pipe of the utility model are installed separately, and the vertical discharge pipe is rotatably installed. When in use, the vertical discharge pipe can be rotatably placed at the bottom of the vertical support feeding pipe and directly connected with the vertical support feeding pipe to carry out conveying and discharge of screws. Compared with the existing technology of obliquely welding and integrating the discharge pipe and the feeding pipe, the discharge channel is straight and smooth without Y-shaped bends, which can greatly reduce the probability of screw jamming and blocking, and help to ensure the normal and effective use of the equipment as a whole.

[0029] In addition, when the steering motor and the driving turntable drive the vertical discharge pipe to rotate and switch, the positioning frame can implement a rigid and stable plug-in fixation on the two semicircular limit sleeves, avoiding the two semicircular limit sleeves simply relying on the elastic positioning of two reset springs, which are insufficient in elasticity and thrown away by the centrifugal force of rotation, causing the screws inside to be lost, which helps to ensure the normal implementation of the equipment locking operation.

[0030] In addition, through the guiding principle of the oblique section structure at the front end of the L-shaped force-bearing rod and used in conjunction with the spring on the positioning square rod, when the driving shaft is rotated to slide up and down and tighten the locking screw, the L-shaped force-bearing rod and the positioning frame can be pushed and driven to move forward and backward, and the two semicircular limit sleeves can be automatically pulled in and out and tightened. This saves the trouble of manually positioning and loosening the two semicircular limit sleeves before and after each locking operation. The operation is simple and time-saving, and it can also avoid the need to configure an automatic pulling in and tightening drive device for the positioning frame, which helps to reduce the overall manufacturing cost of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0032] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0033] In the attached picture:

[0034] Figure 1 The overall structure schematic diagram of the utility model is shown;

[0035] Figure 2 The schematic diagram of the bottom structure of the turntable of the utility model is shown;

[0036] Figure 3 The top structure diagram of the turntable of the utility model is shown;

[0037] Figure 4 A schematic diagram of a half-section structure of a turntable of the utility model is shown;

[0038] Figure 5 A schematic diagram of the positioning frame of the utility model in a disassembled state is shown;

[0039] Figure 6 A schematic diagram of the prior art is shown;

[0040] Reference numerals list

[0041] 1. Multi-axis robot;

[0042] 2. Main body mounting rod; 201. U-shaped connecting frame; 202. Arc-shaped mounting plate;

[0043] 3. Semicircular limiting sleeve; 301. Positioning sleeve; 302. Conical stopper;

[0044] 4. Positioning frame; 401. L-shaped stress rod;

[0045] 5. Steering motor; 501. Turntable; 502. Vertical feeding pipe; 503. Horizontal mounting plate; 504. Positioning square rod;

[0046] 6. I-shaped bracket; 601. Vertical support feeding pipe; 602. Positioning sleeve;

[0047] 7. Electric push rod;

[0048] 8. Twist the drive shaft;

[0049] 9. Tighten the motor. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0051] Example 1, please refer to Figures 1 to 5 :

[0052] The utility model proposes a robot screw locking device, comprising a multi-axis robot 1, wherein a screw locking mechanism is installed at the head end of the mechanical arm of the multi-axis robot 1;

[0053] Among them, the screw locking mechanism includes a main mounting rod 2, an I-shaped bracket 6 and a screwing drive shaft 8, a steering motor 5 is installed at the bottom of the main mounting rod 2, a turntable 501 is fixed at the bottom of the rotating shaft of the steering motor 5, and a vertical feed pipe 502 is welded at the outer circumference of the turntable 501, and the top opening of the vertical feed pipe 502 extends upward through the turntable 501; the I-shaped bracket 6 is fixed at the bottom of the main mounting rod 2, and the I-shaped bracket 6 is composed of a horizontal support rod and a vertical support feed pipe 601 and a positioning sleeve 602 symmetrically welded at both ends of the horizontal support rod, wherein the screwing drive shaft 8 is rotatably installed on the positioning sleeve 602, and the vertical support feed pipe 601 is connected to an external system for pneumatic feeding of screws;

[0054] The steering motor 5 is used to rotate and drive the vertical feeding pipe 502 to alternately switch between the vertical support feeding pipe 601 and the positioning sleeve 602. The steering motor 5 is a servo motor or a stepper motor that can accurately control the rotation angle. The steering motor 5 rotates 180 degrees each time. When the vertical feeding pipe 502 is connected to the vertical support feeding pipe 601, the vertical support feeding pipe 601 can slide the screws conveyed therein downward and discharge them into the vertical feeding pipe 502; when the vertical feeding pipe 502 is connected to the positioning sleeve 602, the vertical feeding pipe 502 can align the screws discharged therein with the screwing drive shaft 8, so that the screwing drive shaft 8 can push downward and screw drive;

[0055] The vertical discharge pipe 502 of the utility model is installed separately from the vertical support feeding pipe 601, and the vertical discharge pipe 502 is rotatably installed. When in use, the vertical discharge pipe 502 can be rotatably placed at the bottom of the vertical support feeding pipe 601 and directly connected with the vertical support feeding pipe 601 to carry out conveying and discharge of screws. Compared with the existing technology of tilting the discharge pipe and the feeding pipe for integrated installation by welding, the discharge channel is straight and smooth without Y-shaped bends, which can greatly reduce the probability of screw jamming and blocking, and help to ensure the normal and effective use of the equipment as a whole.

[0056] Preferably,

[0057] An arc-shaped mounting plate 202 is welded to the top end of the main mounting rod 2 , and the arc-shaped mounting plate 202 is fixedly connected to the head end of the mechanical arm of the multi-axis robot 1 by screw locking.

[0058] Preferably,

[0059] A U-shaped connecting frame 201 is welded to the bottom of the main body mounting rod 2 , and the bottom end of the U-shaped connecting frame 201 is welded and fixed to the I-shaped bracket 6 .

[0060] Preferably,

[0061] An electric push rod 7 is fixedly mounted on the positioning sleeve 602, and a tightening motor 9 is inverted on the top of the telescopic rod of the electric push rod 7. The rotating shaft of the tightening motor 9 is axially connected to the screwing drive shaft 8 for transmission. The electric push rod 7 is used to drive the screwing drive shaft 8 to slide up and down.

[0062] Preferably,

[0063] Two semicircular limiting sleeves 3 are symmetrically installed at the bottom of the vertical feeding tube 502, and a conical stopper 302 is welded in the bottom opening of the two semicircular limiting sleeves 3. After the screws are fed into the vertical feeding tube 502, they will slide down between the two semicircular limiting sleeves 3 due to gravity.

[0064] Preferably,

[0065] Two horizontal mounting plates 503 are symmetrically welded to the bottom side of the vertical discharge pipe 502, and the rotating shafts of the two semicircular limit sleeves 3 correspond to the two end parts of the two horizontal mounting plates 503 and rotate through them, and one end of the rotating shafts of the two semicircular limit sleeves 3 is provided with a reset spring. Under normal circumstances, the reset spring is used to push the two semicircular limit sleeves 3 to be positioned in a closed state, and when the two semicircular limit sleeves 3 are pushed closed, the two conical stops 302 are used to limit the screw blocks in the two semicircular limit sleeves 3 for the screwing drive shaft 8 to slide down and lock.

[0066] Based on the first embodiment, the second embodiment:

[0067] Preferably,

[0068] A positioning sleeve 301 is welded on the end of the rotating shaft of the two semicircular limit sleeves 3 away from the reset coil spring, and a positioning square rod 504 is welded on the horizontal mounting plate 503 close to the side of the positioning sleeve 301, and a positioning insert frame 4 is installed on the positioning square rod 504 through spring pushing and sliding;

[0069] The positioning sleeve 301 is provided with a hexagonal insertion hole.

[0070] Preferably,

[0071] The positioning frame 4 is in the shape of a U-shaped structure, and the head end portion of the positioning frame 4 is in a hexagonal structure. The head end portion of the positioning frame 4 corresponds to the two positioning sleeves 301 for plugging and matching. When the steering motor 5 and the driving turntable 501 drive the vertical discharge pipe 502 to rotate and switch, the positioning frame 4 can implement a rigid and stable plug-in fixation on the two semicircular limit sleeves 3, avoiding the two semicircular limit sleeves 3 simply relying on the elastic positioning of two reset coil springs, which are insufficient in elasticity and thrown away by the centrifugal force of rotation, causing the screws inside to be lost due to leakage, which helps to ensure the normal implementation of the equipment locking operation.

[0072] Preferably,

[0073] An L-shaped stress-bearing rod 401 is welded at the middle position of the top of the positioning frame 4, and the top end of the L-shaped stress-bearing rod 401 is an oblique section structure;

[0074] A vertical slide groove is provided on the circumferential outer wall of the vertical feed pipe 502, and the oblique section of the head end of the L-shaped force-bearing rod 401 penetrates and plugs into the vertical slide groove;

[0075] When the driving shaft 8 is screwed and slides downward, it comes into contact with the oblique section of the L-shaped force-bearing rod 401 that protrudes from the inner side of the vertical discharge tube 502. Through the guiding principle of the oblique section structure at the head end of the L-shaped force-bearing rod 401 and used in conjunction with the spring on the positioning square rod 504, when the driving shaft 8 slides up and down and tightens the locking screw, it can also push and drive the L-shaped force-bearing rod 401 and the positioning frame 4 to move forward and backward, and automatically insert and tighten the two semicircular limit sleeves 3. This saves the trouble of manually positioning and loosening the two semicircular limit sleeves 3 before and after each locking operation. The operation is simple and time-saving, and it can also avoid the need to configure an automatic insertion and tightening drive device for the positioning frame 4, which helps to reduce the overall manufacturing cost of the equipment.

[0076] Working principle: when in use, firstly, the steering motor 5 transfers the vertical feeding tube 502 to the bottom of the vertical support feeding tube 601 and aligns and communicates with the vertical support feeding tube 601, receives the screws delivered from the vertical support feeding tube 601, and then the steering motor 5 transfers the vertical feeding tube 502 and the screws inside it to the bottom of the positioning sleeve 602 and aligns and communicates with the vertical support feeding tube 601, then starts the electric push rod 7 and the tightening motor 9, the electric push rod 7 is used to drive the screwing drive shaft 8 to slide down, the tightening motor 9 is used to drive the screwing drive shaft 8 to rotate, as the screwing drive shaft 8 continues to descend, it will contact with the screw and push the screw out of the two semicircular limit sleeves 3, after the screw is pushed out, it will abut against the threaded hole on the workpiece to be screwed and locked, after the locking is completed, the electric push rod 7 drives the screwing drive shaft 8 to slide upward and reset;

[0077] Under normal circumstances, the reset coil spring is used to push the two semicircular limit sleeves 3 to a closed state, and when the two semicircular limit sleeves 3 are pushed closed, the two conical stops 302 are used to limit the screw block in the two semicircular limit sleeves 3 for the screw drive shaft 8 to slide down and tighten.

[0078] In this article, there are a few points to note:

[0079] 1. The drawings of the embodiments of the present utility model only involve structures related to the embodiments of the present utility model, and other structures can refer to the usual design.

[0080] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to obtain new embodiments.

[0081] The above are only specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A robot screw locking device, comprising: A multi-axis robot (1), wherein a screw locking mechanism is installed at the head end of the mechanical arm of the multi-axis robot (1); The invention is characterized in that the screw locking mechanism comprises a main mounting rod (2), an I-shaped bracket (6) and a screw driving shaft (8); a steering motor (5) is installed at the bottom of the main mounting rod (2); a turntable (501) is fixed at the bottom of the rotating shaft of the steering motor (5); a vertical feed pipe (502) is welded at the outer circumference of the turntable (501); the top opening of the vertical feed pipe (502) extends upward and passes through the turntable (501); the I-shaped bracket (6) is fixed below the bottom of the main mounting rod (2); the I-shaped bracket (6) is composed of a horizontal support rod and a vertical feed pipe (601) and a positioning sleeve (602) symmetrically welded to both ends of the horizontal support rod, wherein the screw driving shaft (8) is rotatably installed on the positioning sleeve (602); The steering motor (5) is used to rotate and drive the vertical feed pipe (502) to alternately switch between the vertical support feed pipe (601) and the positioning sleeve (602).

2. A robot screw locking device according to claim 1, characterized in that: An arc-shaped mounting plate (202) is welded to the top end of the main body mounting rod (2), and the arc-shaped mounting plate (202) is fixedly connected to the head end of the mechanical arm of the multi-axis robot (1) by screw locking.

3. The robot screw locking device according to claim 1, characterized in that: A U-shaped connecting frame (201) is welded to the bottom of the main body mounting rod (2), and the bottom end of the U-shaped connecting frame (201) is welded and fixed to the I-shaped bracket (6).

4. The robot screw locking device according to claim 1, characterized in that: An electric push rod (7) is fixedly mounted on the positioning sleeve (602), a tightening motor (9) is invertedly mounted on the top end of the telescopic rod of the electric push rod (7), and the rotating shaft of the tightening motor (9) is axially connected to the screwing drive shaft (8) for transmission.

5. The robot screw locking device according to claim 1, characterized in that: Two semicircular limiting sleeves (3) are symmetrically mounted on the bottom of the vertical discharge pipe (502), and a conical stopper (302) is welded to the bottom opening of each of the two semicircular limiting sleeves (3).

6. The robot screw locking device according to claim 5, characterized in that: Two horizontal mounting plates (503) are symmetrically welded to the bottom side of the vertical discharge pipe (502), and the rotating shafts of the two semicircular limiting sleeves (3) are correspondingly rotated through the two end portions of the two horizontal mounting plates (503), and one end of the rotating shaft of the two semicircular limiting sleeves (3) is sleeved with a reset coil spring.

7. The robot screw locking device according to claim 6, characterized in that: A positioning sleeve (301) is welded to the end of the rotating shaft of the two semicircular limiting sleeves (3) away from the reset coil spring, and a positioning square rod (504) is welded to the horizontal mounting plate (503) on the side close to the positioning sleeve (301), and a positioning insert frame (4) is installed on the positioning square rod (504) by pushing and sliding with a spring; The positioning sleeve (301) is provided with a hexagonal socket.

8. The robot screw locking device according to claim 7, characterized in that: The positioning insert frame (4) is in a U-shaped structure, and the head end portion of the positioning insert frame (4) is in a hexagonal structure. The head end portion of the positioning insert frame (4) is correspondingly plugged into and matched with the two positioning sleeves (301).

9. The robot screw locking device according to claim 8, characterized in that: An L-shaped stress-bearing rod (401) is welded to the middle position of the top of the positioning insert frame (4), and the top end of the L-shaped stress-bearing rod (401) is an oblique cross-section structure; A vertical slide groove is provided on the circumferential outer wall of the vertical discharge pipe (502), and the oblique section of the head end of the L-shaped force-bearing rod (401) is inserted and engaged with the vertical slide groove; When the screw drive shaft (8) slides downward, it comes into contact with the oblique section of the L-shaped force-bearing rod (401) that protrudes from the inner side of the vertical discharge pipe (502).

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