Torsion-controllable screw hitting mechanism

Abstract

The utility model discloses a controllable torsion screw hitting mechanism which comprises an installation fixing plate, a sliding groove is vertically formed in the front side of the installation fixing plate, a fixing plate is fixedly connected to the front wall of the installation fixing plate, a screw hitting air cylinder is fixedly installed at the top end of the fixing plate, and a sliding seat is fixedly connected to the bottom end of a movable rod of the screw hitting air cylinder. Limiting rods are fixedly connected to the upper inner side wall and the lower inner side wall of the sliding groove, the outer side walls of the limiting rods are slidably connected with the top ends of sliding bases in a penetrating mode, screw hitting assemblies are arranged on the sliding bases, and a direction adjusting assembly is arranged on the rear side of the mounting fixing plate. When the screw is driven, the corresponding torsion can be adjusted through the static torque sensor, the torsion change can be monitored, abnormal products are reduced, and the percent of pass is increased; through the arranged direction adjusting assembly, when a non-planar workpiece is subjected to screw driving, the screw driving assembly can be driven to freely rotate up and down and left and right, so that the screw driving direction of the large screw assembly can be flexibly and freely adjusted, and the non-planar workpiece can also be machined.

Description

Technical Field

[0001] This utility model relates to the field of torque screw driving technology, and in particular to a controllable torque screw driving mechanism. Background Technology

[0002] A screw fastening machine is a small, automated machine for fastening screws. Its operating structure can generally be divided into two parts: a feeding section and an electric screwdriver section. The feeding section is responsible for screening and providing screws, while the electric screwdriver section is responsible for picking up and fastening the screws. The emergence of screw fastening machines has both improved work efficiency and reduced the intensity of manual labor.

[0003] Modification of the screw-picking and screw-driving mechanism in automatic screw-driving equipment. Screw-driving mechanisms are commonly used on robots to pick up screws and screw them onto products. Common methods for screw-picking mechanisms include vacuum adsorption, magnetic adsorption, and air blowing.

[0004] Existing torque screw-driving mechanisms are inconvenient to adjust during use and can only drive screws onto flat surfaces, so their practicality needs to be improved. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, one of the objectives of this utility model is to provide a controllable torque screw-driving mechanism. Through the inclusion of a screw-driving cylinder, sliding seat, screw-driving assembly, limit rod, and slide groove, the torque can be adjusted via a static torque sensor during screw driving. By controlling the locking torque through the static torque sensor, torque changes can be monitored, enabling the output of maximum torque, reducing defective products, and increasing the pass rate. Furthermore, the included direction adjustment assembly allows the screw-driving assembly to rotate freely up, down, left, and right when driving screws onto non-planar workpieces, enabling flexible and free adjustment of the screw-driving direction. This also allows for the processing of non-planar workpieces, improving the practicality of the device.

[0006] One of the objectives of this utility model is achieved by the following technical solution: a controllable torque screw-driving mechanism, comprising: a mounting plate, a vertically formed sliding groove on the front side of the mounting plate, a fixed plate fixedly connected to the front wall of the mounting plate, a screw-driving cylinder fixedly mounted on the top of the fixed plate, a sliding seat fixedly connected to the bottom end of the movable rod of the screw-driving cylinder, a limit rod fixedly connected to the upper and lower inner side walls of the sliding groove, a sliding connection between the outer side wall of the limit rod and the top end of the sliding seat, a screw-driving assembly on the sliding seat, and a direction adjustment assembly on the rear side of the mounting plate;

[0007] The direction adjustment assembly includes a connecting plate and a rotating cylinder II. A rotating cylinder I is fixedly connected to the rear wall of the connecting plate. A rotating rod is fixedly connected to the side wall of the rotating cylinder II. The side wall of the rotating rod is rotatably connected to the side wall of the rotating cylinder I. A driven gear is fixedly connected to one end of the rotating rod. A servo motor I is fixedly installed at the top of the connecting plate. A master gear I is fixedly connected to the output end of the servo motor I. The side wall of the master gear I meshes with the side wall of the driven gear. An internal gear ring is fixedly connected to the rear wall of the rotating cylinder II. A sleeve is rotatably connected to the outer side wall of the internal gear ring. A fixing frame is fixedly connected to the inner side wall of the sleeve. A servo motor II is fixedly installed inside the fixing frame. A master gear II is fixedly connected to the output end of the servo motor II. The outer side wall of the master gear II meshes with the inner side wall of the internal gear ring. A mounting plate is fixedly connected to the rear wall of the internal gear ring. With its nail-driving cylinder, sliding seat, screw-driving assembly, limit rod, and slide, the device allows for adjustment of the corresponding torque during screw driving via a static torque sensor. This static torque sensor controls the locking torque and monitors torque changes, enabling the output of maximum torque, reducing defective products, and increasing the pass rate. Furthermore, the included direction adjustment assembly allows for free rotation of the screw-driving assembly in all directions when driving screws onto non-planar workpieces. This allows for flexible adjustment of the screw-driving direction, enabling the processing of non-planar workpieces and enhancing the device's practicality.

[0008] According to the controllable torque screw-driving mechanism, the screw-driving assembly includes a static torque sensor, a servo motor is mounted on the top of the static torque sensor, an elastic connecting shaft is fixedly mounted on the bottom of the static torque sensor, a bolt cutter bit is fixedly mounted on the bottom of the elastic connecting shaft, and a screw-collecting head is fixedly mounted on the bottom of the bolt cutter bit.

[0009] According to the controllable torque screw-driving mechanism, the static torque sensor is fixedly mounted on the top of the sliding seat.

[0010] A controllable torque screw-driving mechanism is provided, wherein a servo reducer is fixedly installed at the output end of the servo motor.

[0011] According to the controllable torque screw-driving mechanism, the left and right sidewalls of the sliding seat are slidably connected to the inner sidewall of the sliding groove.

[0012] According to the controllable torque screw-driving mechanism, the front sidewall of the connecting plate is fixedly connected to the rear sidewall of the mounting plate.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is a perspective view of a controllable torque screw-driving mechanism according to the present invention.

[0016] Figure 2 This is a partial view of a controllable torque screw-driving mechanism according to the present invention;

[0017] Figure 3 This is a perspective view of the screw-driving assembly of a controllable torque screw-driving mechanism according to this utility model;

[0018] Figure 4 This is a structural diagram of the direction adjustment component of a controllable torque screw-driving mechanism according to this utility model.

[0019] Legend:

[0020] 1. Mounting plate; 2. Direction adjustment assembly; 3. Mounting plate; 4. Nail-driving cylinder; 5. Sliding seat; 6. Screw-driving assembly; 7. Limiting rod; 101. Slide groove; 201. Connecting plate; 202. Servo motor one; 203. Main gear one; 204. Rotary drum one; 205. Rotary drum two; 206. Rotating rod; 207. Driven gear; 208. Internal gear ring; 209. Fixing frame; 210. Servo motor two; 211. Main gear two; 212. Sleeve; 213. Mounting plate; 601. Servo motor three; 602. Static torque sensor; 603. Flexible connecting shaft; 604. Bolt bit; 605. Nail suction head. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] Reference Figure 1-4 This utility model provides a controllable torque screw-driving mechanism, which includes: a mounting plate 1, a vertically formed sliding groove 101 on the front side of the mounting plate 1, a fixing plate 3 fixedly connected to the front wall of the mounting plate 1, a screw-driving cylinder 4 fixedly mounted on the top of the fixing plate 3, a sliding seat 5 fixedly connected to the bottom end of the movable rod of the screw-driving cylinder 4, a limit rod 7 fixedly connected to the upper and lower inner side walls of the sliding groove 101, a sliding connection between the outer side wall of the limit rod 7 and the top end of the sliding seat 5, a sliding connection between the left and right side walls of the sliding seat 5 and the inner side wall of the sliding groove 101, a screw-driving assembly 6 on the sliding seat 5, and a direction adjustment assembly 2 on the rear side of the mounting plate 1.

[0023] The direction adjustment assembly 2 includes a connecting plate 201 and a rotating cylinder 205. The front side wall of the connecting plate 201 is fixedly connected to the rear side wall of the mounting and fixing plate 1. A rotating cylinder 204 is fixedly connected to the rear wall of the connecting plate 201. A rotating rod 206 is fixedly connected to the side wall of the rotating cylinder 205. The side wall of the rotating rod 206 is rotatably connected to the side wall of the rotating cylinder 204. A driven gear 207 is fixedly connected to one end of the rotating rod 206. A servo motor 202 is fixedly installed at the top of the connecting plate 201. A main gear 207 is fixedly connected to the output end of the servo motor 202. 3. The side wall of the main gear 203 meshes with the side wall of the driven gear 207. The rear wall of the rotating cylinder 205 is fixedly connected to an internal gear ring 208. The outer side wall of the internal gear ring 208 is rotatably connected to a sleeve 212. The inner side wall of the sleeve 212 is fixedly connected to a fixing frame 209. The fixing frame 209 is fixedly installed with a servo motor 210. The output end of the servo motor 210 is fixedly connected to a main gear 211. The outer side wall of the main gear 211 meshes with the inner side wall of the internal gear ring 208. The rear wall of the internal gear ring 208 is fixedly connected to a mounting plate 213.

[0024] The screw-driving assembly 6 includes a static torque sensor 602, which is fixedly mounted on the top of the sliding seat 5. A servo motor 601 is mounted on the top of the static torque sensor 602, and a servo reducer is fixedly mounted on the output end of the servo motor 601. An elastic connecting shaft 603 is fixedly mounted on the bottom of the static torque sensor 602, and a bolt bit 604 is fixedly mounted on the bottom of the elastic connecting shaft 603. A screw-picking head 605 is fixedly mounted on the bottom of the bolt bit 604.

[0025] The automatic screw-driving mechanism, consisting of a nail-driving cylinder 4, a sliding seat 5, a screw-driving assembly 6, a limit rod 7, and a sliding groove 101, first adjusts the corresponding torque via a static torque sensor 602. Then, the servo motor 601 is started and reduced in speed by a servo reducer, driving the elastic connecting shaft 603 to rotate, which in turn drives the bolt bit 604 and the nail-collecting head 605 to rotate. Simultaneously, the nail-driving cylinder 4 drives the sliding seat 5 to slide up and down along the limit rod 7, allowing the nail-collecting head 605 to perform either screw-driving or nail-collecting operations. The automatic screw-driving mechanism picks up the screw and locks it in place via the servo motor 601, with the locking torque controlled by the static torque sensor 602. It can monitor torque changes, not only outputting maximum torque to reduce defective products and increase the pass rate; through the set direction adjustment component 2, when screwing non-planar workpieces, servo motor 1 202 drives main gear 1 203 to rotate along driven gear 207, which in turn drives screw-driving component 6 to rotate up and down to adjust the screw-driving direction. Servo motor 210 drives main gear 211 to rotate, which drives the internal gear ring 208 meshing with it to rotate, and in turn drives screw-driving component 6 to rotate left and right. This allows the screw-driving direction of screw-driving component 6 to be flexibly and freely adjusted, and can also process non-planar workpieces, improving the practicality of the device.

[0026] Working principle: During use, the corresponding torque is adjusted by the static torque sensor 602. Then, the servo motor 601 is started and decelerated by the servo reducer, which drives the elastic connecting shaft 603 to rotate, thereby driving the bolt bit 604 and the nail suction head 605 to rotate. At the same time, the nailing cylinder 4 drives the sliding seat 5 to slide up and down along the limit rod 7, so that the nail suction head 605 can be used for screw driving or nail suction operation. When driving screws on non-planar workpieces, the servo motor 202 drives the main gear 203 to rotate along the driven gear 207, which in turn drives the screw driving assembly 6 to rotate up and down to adjust the direction of screw driving. The servo motor 210 drives the main gear 211 to rotate, which drives the internal gear ring 208 that meshes with it to rotate, thereby driving the screw driving assembly 6 to rotate left and right. This allows the direction of screw driving of the screw driving assembly 6 to be flexibly and freely adjusted, and it can also process non-planar workpieces, improving the practicality of the device.

[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A controllable torque screw-driving mechanism, comprising: The mounting fixing plate (1) is characterized in that a sliding groove (101) is vertically opened on the front side of the mounting fixing plate (1), a fixing plate (3) is fixedly connected to the front wall of the mounting fixing plate (1), a nail-driving cylinder (4) is fixedly installed at the top of the fixing plate (3), a sliding seat (5) is fixedly connected to the bottom end of the movable rod of the nail-driving cylinder (4), a limit rod (7) is fixedly connected to the upper and lower inner side walls of the sliding groove (101), the outer side wall of the limit rod (7) is slidably connected to the top of the sliding seat (5), a screw-driving assembly (6) is provided on the sliding seat (5), and a direction adjustment assembly (2) is provided on the rear side of the mounting fixing plate (1). The direction adjustment assembly (2) includes a connecting plate (201) and a rotating cylinder two (205). A rotating cylinder one (204) is fixedly connected to the rear wall of the connecting plate (201). A rotating rod (206) is fixedly connected to the side wall of the rotating cylinder two (205). The side wall of the rotating rod (206) is rotatably connected to the side wall of the rotating cylinder one (204). A driven gear (207) is fixedly connected to one end of the rotating rod (206). A servo motor one (202) is fixedly installed at the top of the connecting plate (201). A main gear one (203) is fixedly connected to the output end of the servo motor one (202). The side of the main gear one (203) is fixedly connected to the output end of the servo motor one (202). The inner wall of the rotating cylinder (205) meshes with the side wall of the driven gear (207). An internal gear ring (208) is fixedly connected to the rear wall of the rotating cylinder (205). A sleeve (212) is rotatably connected to the outer side wall of the internal gear ring (208). A fixing frame (209) is fixedly connected to the inner side wall of the sleeve (212). A servo motor (210) is fixedly installed inside the fixing frame (209). A main gear (211) is fixedly connected to the output end of the servo motor (210). The outer side wall of the main gear (211) meshes with the inner side wall of the internal gear ring (208). A mounting plate (213) is fixedly connected to the rear wall of the internal gear ring (208).

2. The controllable torque screw-driving mechanism according to claim 1, characterized in that, The screw-driving assembly (6) includes a static torque sensor (602), a servo motor (601) is mounted on the top of the static torque sensor (602), an elastic connecting shaft (603) is fixedly mounted on the bottom of the static torque sensor (602), a bolt bit (604) is fixedly mounted on the bottom of the elastic connecting shaft (603), and a screw-collecting head (605) is fixedly mounted on the bottom of the bolt bit (604).

3. The controllable torque screw-driving mechanism according to claim 2, characterized in that, The static torque sensor (602) is fixedly mounted on the top of the sliding seat (5).

4. The controllable torque screw-driving mechanism according to claim 2, characterized in that, A servo reducer is fixedly installed at the output end of the servo motor three (601).

5. The controllable torque screw-driving mechanism according to claim 1, characterized in that, The left and right sidewalls of the sliding seat (5) are slidably connected to the inner sidewall of the sliding groove (101).

6. The controllable torque screw-driving mechanism according to claim 1, characterized in that, The front sidewall of the connecting plate (201) is fixedly connected to the rear sidewall of the mounting plate (1).

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