CN220372612U

CN220372612U - Automatic screw tightening special machine

Info

Publication number: CN220372612U
Application number: CN202321843769.0U
Authority: CN
Inventors: 任海涛; 张斌; 王学胜; 蔡云华
Original assignee: SHANGHAI SOLID STAINLESS STEEL PRODUCTS CO Ltd
Current assignee: SHANGHAI SOLID STAINLESS STEEL PRODUCTS CO Ltd
Priority date: 2023-07-13
Filing date: 2023-07-13
Publication date: 2024-01-23
Anticipated expiration: 2033-07-13

Abstract

The utility model discloses a special automatic screw screwing machine, which comprises: the mechanical arm and the conveying line; the conveying line is used for conveying the second part; the manipulator set up in one side of transfer chain, be provided with on the manipulator and be used for snatching the fixture of second part, be provided with pneumatic screwdriver on the manipulator, fixture snatch the second part and put on the first part, then through pneumatic screwdriver absorbs the screw and accomplish the action of screwing. The special automatic screw screwing machine can realize a full-automatic screw screwing process and is high in efficiency.

Description

Automatic screw tightening special machine

Technical Field

The utility model relates to the technical field of product screw assembly, in particular to a special automatic screw screwing machine.

Background

As shown in fig. 1 and 2, the product is assembled by a first part, such as a kettle body 101, and a second part, such as an annular ring 102, through screws 103, and in the prior art, no automatic screwing structure for the product is assembled manually, so that the working efficiency is low, and the production is affected.

Disclosure of Invention

Aiming at the problems in the prior art, the special automatic screw screwing machine is provided.

The specific technical scheme is as follows:

an automatic screw tightening special machine for grabbing screws and assembling a first part and a second part, mainly comprising: the mechanical arm and the conveying line;

the conveying line is used for conveying the second part;

the manipulator set up in one side of transfer chain, be provided with on the manipulator and be used for snatching the fixture of second part, be provided with pneumatic screwdriver on the manipulator, fixture snatch the second part and put on the first part, then through pneumatic screwdriver absorbs the screw and accomplish the action of screwing.

The special automatic screw screwing machine is characterized in that the clamping mechanism comprises a clamping jaw cylinder arranged on the mechanical arm and clamping jaws arranged on the clamping jaw cylinder.

In the automatic screw tightening special machine, the automatic screw tightening special machine further has the characteristic that the mechanical arm is provided with a lifting seat plate, the clamping jaw air cylinder is arranged on the seat plate, the clamping jaw faces the conveying line, and the pneumatic screwdriver is arranged on one side of the seat plate.

In the automatic screw driving special machine, the special machine is characterized in that a screw driver is arranged on the seat plate, the screw driver is in driving connection with the pneumatic screw driver, a guide rail is further arranged on the seat plate, and the pneumatic screw driver is in sliding connection with the guide rail through a sliding block.

The automatic screw tightening special machine is characterized in that the conveying line comprises a support, a conveying driving piece, a transmission assembly and a jig plate, wherein the conveying driving piece and the transmission assembly are arranged on the support, the conveying driving piece is in driving connection with the transmission assembly, and the jig plate is provided with a plurality of parallel arrays and is arranged on the transmission assembly.

The automatic screw tightening special machine is characterized in that the transmission assembly comprises a first transmission shaft, a second transmission shaft, a first gear, a second gear and a first chain, wherein the first transmission shaft and the second transmission shaft are arranged at two opposite ends of the length of the support, the first gears are arranged at two ends, the first gears are arranged on the first transmission shaft, the second gears are arranged at two ends, the second gears are arranged on the second transmission shaft, the conveying driving piece is in driving connection with the first transmission shaft, the first chain is arranged at two ends, which are positioned at the same side of the support, of the first gear and the second gear, the first chain is in driving connection, and the jig frame is arranged on the two first chains.

In the automatic screw driving special machine, the transmission assembly further comprises a third gear, the third gear is in transmission connection with the first gear through a second chain, and the conveying driving piece is in driving connection with the third gear.

The automatic screw tightening machine is characterized in that a clamping mechanism is arranged on the other side of the conveying line, the clamping mechanism comprises a lifting driving piece, a telescopic driving piece is arranged at the output end of the lifting driving piece, a clamp is arranged at the output end of the telescopic driving piece and used for clamping a second part arranged on the jig plate, and a position sensor is arranged at the position of the support corresponding to the clamp.

The automatic screw tightening machine is characterized by further comprising a screw tightening station, wherein the screw tightening station is arranged on the outer side of the conveying line and is close to the mechanical arm, and the screw tightening station is used for placing the first part.

In the above-mentioned special machine for automatically screwing screws, the mechanical arm is arranged on a movable rack, and the rack is also provided with a screw supply structure.

The technical scheme has the positive effects that:

according to the special automatic screw screwing machine provided by the utility model, the clamping mechanism is used for grabbing the second part placed on the conveying line and placing the second part on the first part, the pneumatic screwdriver is used for sucking the screw and then placing the screw at the designated position and completing the screw screwing action, the mechanical arm can realize the displacement and lifting requirements in the whole process, the full-automatic screw screwing process can be realized, and the efficiency is high.

Drawings

FIG. 1 is a schematic view of a first part according to the present utility model;

FIG. 2 is a schematic structural view of a product according to the present utility model;

fig. 3 is a schematic view of a first direction structure of a special automatic screwing machine according to a first embodiment of the present utility model;

FIG. 4 is a schematic view of a portion of the structure of FIG. 3;

fig. 5 is a schematic diagram of a second direction structure of the special automatic screw tightening machine according to the first embodiment of the present utility model;

fig. 6 is a schematic view of a third directional structure of the automatic screw tightening machine according to the first embodiment of the present utility model;

fig. 7 is a schematic structural diagram of a special automatic screw tightening machine according to a second embodiment of the present utility model;

FIG. 8 is a schematic view of a first direction structure of a mechanical arm, a clamping mechanism and a pneumatic screwdriver provided by the utility model;

fig. 9 is a schematic diagram of a second direction structure of the mechanical arm, the clamping mechanism and the pneumatic screwdriver provided by the utility model.

In the accompanying drawings: 101. a kettle body; 102. an annular ring; 103. a screw; 210. a mechanical arm; 211. a lifting rod; 220. a conveying line; 2202. a second conveyor line; 221. a bracket; 2211. a cross beam; 2212. a position sensor; 222. a conveying driving member; 2231. a first drive shaft; 2232. a second drive shaft; 2233. a first gear; 2234. a second gear; 2235. a first chain; 2236. a third gear; 2237. a second chain; 224. a jig plate; 225. a jig; 230. a clamping mechanism; 231. a clamping jaw cylinder; 232. a clamping jaw; 240. a pneumatic screwdriver; 250. a seat plate; 251. a first plate; 252. a second plate; 253. a guide rail; 254. a slide block; 255. a mounting plate; 256. a base; 260. a driver for a screwdriver; 270. a clamping mechanism; 271. a lifting driving member; 272. a telescopic driving member; 273. a clamp; 280. a first conveyor line; 290. a stand; 291. a screw supply structure; a. and a screw screwing station.

Detailed Description

The present utility model will be further described in detail below with reference to examples, which are provided to illustrate the objects, technical solutions and advantages of the present utility model. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

The numbering of components herein, such as "first," "second," etc., is used merely to distinguish between the described objects and does not have any sequential or technical meaning. The terms "coupled" and "connected," as used herein, are intended to encompass both direct and indirect coupling (coupling), unless otherwise indicated. In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

Referring to fig. 3 to 9, an automatic screw machine for gripping a screw 103 and assembling a first part such as a can body 101 and a second part such as an annular ring 102 is disclosed, comprising: a robot arm 210 and a conveyor line 220;

the conveyor line 220 is used to convey a second part, such as the annular ring 102;

the mechanical arm 210 is disposed on one side of the conveying line 220, a clamping mechanism 230 for grabbing a second part such as the annular ring 102 is disposed on the mechanical arm 210, a pneumatic screwdriver 240 is disposed on the mechanical arm 210, the clamping mechanism 230 grabs the second part such as the annular ring 102 and puts the second part on the first part such as the kettle body 101, and then the pneumatic screwdriver 240 sucks the screw 103 and completes screwing action.

Specifically, the gripping mechanism 230 includes a gripper cylinder 231 provided on the robot arm 210 and a gripper 232 provided on the gripper cylinder 231.

Preferably, in the present embodiment, the mechanical arm 210 is provided with a lifting seat plate 250, the clamping jaw cylinder 231 is mounted on the seat plate 250, the clamping jaw 232 faces the conveying line 220, and the pneumatic screwdriver 240 is disposed on one side of the seat plate 250. The seat plate 250 is an L-shaped structure, and includes a first plate 251 and a second plate 252, where the first plate 251 and the second plate 252 are perpendicular to each other to form an L-shaped structure, as shown in fig. 3 to 9, the first plate 251 is horizontally placed, the second plate 252 is vertically placed, the clamping jaw cylinder 231 is disposed below the first plate 251, the clamping jaw 232 is disposed below the clamping jaw cylinder 231, and the air-operated screwdriver 240 is disposed on a side of the second plate 252 facing away from the first plate 251. Further, a driver 260 is disposed on the seat plate 250, the driver 260 is in driving connection with the air-operated driver 240, a guide rail 253 is disposed on the seat plate 250, and the air-operated driver 240 is slidably connected with the guide rail 253 through a slider 254. Wherein, the guide rail 253 is disposed on one side of the second plate 252 facing away from the first plate 251, the guide rail 253 is disposed along a vertical direction, the screwdriver driver 260 may be an air cylinder, a hydraulic cylinder or an electric cylinder, the screwdriver driver 260 is disposed on one side of the second plate 252 facing away from the first plate 251, the screwdriver driver 260 is disposed above the guide rail 253, a mounting plate 255 is disposed above the second plate 252, the screwdriver driver 260 is disposed on the mounting plate 255 in a penetrating manner, a seat 256 is disposed on the slider 254, and the air screwdriver 240 is disposed on the seat 256 in a penetrating manner. Alternatively, the pneumatic screwdriver 240 is prior art and may be purchased directly, e.g., in one particular embodiment, the pneumatic screwdriver 240 is a good helper brand pneumatic screwdriver, such as good helper ASA-BS6800. Optionally, in this embodiment, the first plate 251 is mounted on a lifting rod 211 as shown in fig. 3 to 9, the lifting rod 211 is a structure of the mechanical arm 210, the mechanical arm 210 is made of FANUCRobotSR-6iA, and the mechanical arm 210 can drive the clamping mechanism 230 mounted on the mechanical arm 210 to translate, lift or rotate with the air-operated screwdriver 240, so as to realize position conversion. Alternatively, in other embodiments, a driving member such as a cylinder for driving the seat plate 250 up and down may be provided.

The conveying line 220 comprises a bracket 221, a conveying driving piece 222, a transmission component and a jig plate 224, wherein the conveying driving piece 222 and the transmission component are arranged on the bracket 221, the conveying driving piece 222 is in driving connection with the transmission component, and the jig plate 224 is provided with a plurality of parallel arrays arranged on the transmission component.

The transmission assembly comprises a first transmission shaft 2231, a second transmission shaft 2232, first gears 2233, second gears 2234 and first chains 2235, wherein the first transmission shaft 2231 and the second transmission shaft 2232 are arranged at two opposite ends of the length of the support 221, two first gears 2233 are arranged on the first transmission shaft 2231, two second gears 2234 are arranged on the second transmission shaft 2232, a conveying driving piece 222 is in driving connection with the first transmission shaft 2231, two first chains 2235 are arranged, and the first gears 2233 and the second gears 2234 which are positioned on the same side of the support 221 are in driving connection through a first chain 2235, and the jig plate 224 is erected on the two first chains 2235.

Specifically, the bracket 221 is integrally a frame structure, and has two parallel cross beams 2211, a first transmission shaft 2231 and a second transmission shaft 2232 movably penetrate through the two cross beams 2211, and a first gear 2233 and a second gear 2234 are disposed between the two cross beams 2211 and are respectively disposed near the cross beams 2211 on the corresponding sides.

Further, a jig 225 is disposed on the jig plate 224, and the jig 225 may be a cylindrical member for mounting a second part, such as an annular ring 102, for example, the annular ring 102, and a plurality of annular rings 102 are sequentially sleeved on the jig 225 for clamping by the clamping jaws 232.

Optionally, in the present embodiment, the transmission assembly further includes a third gear 2236, the third gear 2236 is drivingly connected to the first gear 2233 through a second chain 2237, and the conveying drive 222 is drivingly connected to the third gear 2236. Optionally, the transport drive 222 is a motor. The motor may be directly in driving connection with the first transmission shaft 2231, and the third gear 2236 may be provided to enable space shifting, e.g., to give way to the following clamping mechanism 270.

The other side of the conveyor line 220 is provided with a clamping mechanism 270, the clamping mechanism 270 comprises a lifting driving member 271, an output end of the lifting driving member 271 is provided with a telescopic driving member 272, a clamp 273 is arranged at the tail end of the telescopic driving member 272, the clamp 273 is used for clamping a second part placed on the jig plate 224, such as an annular ring 102, and a position sensor 2212 is arranged at a position of the bracket 221 corresponding to the clamp 273. Optionally, two position sensors 2212 are provided, one on each of the two cross beams 2211, in particular in the vicinity of the clamping mechanism 270. Alternatively, the elevation driving member 271 may be an air cylinder, a hydraulic cylinder, or an electric cylinder. Optionally, in this embodiment, the clamp 273 includes two claws that form a U-shaped claw, and optionally, in other embodiments, the clamp 273 includes a dual-rod dual-shaft dual-directional cylinder (including two protruding ends) and claws disposed on the two protruding ends of the dual-rod dual-shaft dual-directional cylinder, where the two claws can be clamped or unclamped by the two protruding ends, and the two claws form a U-shaped structure with the dual-rod dual-shaft dual-directional cylinder. The double-rod double-shaft bidirectional cylinder can adopt STMB series double-rod double-shaft bidirectional sliding table cylinder 25-25/50/75/100/200 or CXSWM CXSW10x20/25/32-10-20-50-100 double-connection double-output guide rod baffle sliding table. The clamp 273 may also be configured similarly to the clamping mechanism 230 described above, including a jaw cylinder 231 and a jaw 232.

Further, the kettle further comprises a screwing station a, wherein the screwing station is arranged on the outer side of the conveying line 220, the screwing station is arranged close to the mechanical arm 210, and the screwing station a is used for placing a first part such as the kettle body 101. Alternatively, in a specific embodiment, the screwing station a may be a fixed workbench, or a two conveying lines for conveying the second part, for example, the annular ring 102 may be used, where, for distinguishing, the conveying line for conveying the second part, for example, the annular ring 102 is referred to as a second conveying line 2202, the conveying line for conveying the first part, for example, the kettle body 101 is referred to as a first conveying line 280, and the first conveying line 280 may specifically refer to the second conveying line 2202, which is not described herein, where the first conveying line 280 is disposed at an end of the second conveying line 2202 and the mechanical arm 210, so that the mechanical arm 210 and the second conveying line 2202 are both sufficiently close to the first conveying line 280, and the clamping mechanism 270 is disposed at a side close to the first conveying line 280. The first conveying line 280 is provided with a plurality of stations in an array, and the station for screwing the screw, which is transmitted below the mechanical arm 210, is a screw screwing station a.

Optionally, the robot 210 is disposed on a movable stage 290, and the stage 290 is further provided with screw feeding structures 291. Wherein, the stand 290 below sets up stabilizer blade and pulley, and the stabilizer blade is used for leveling, and the pulley is used for the removal of stand 290. Alternatively, the screw feed arrangement 291 is of prior art and can be purchased directly, for example as a helper brand screw collator ASA-AT1030TC. Optionally, in the present embodiment, the support 221 is also disposed on the stand 290, and optionally, in the present embodiment, the stand 290 has a height of a table top at one end of the mechanical arm 210 disposed thereon that is higher than a height of a table top at one end of the stand 290 disposed thereon that is disposed thereon the support 221, and the screw feeding structure 291 is disposed near the mechanical arm 210. In other embodiments, the stand 290 and the stand 221 may be separately disposed, where the stand 290 is movably disposed, and the stand 221 is not disposed on the stand 290 but is disposed outside the stand 290, and the stand 290 and the stand are independent structures and can be moved to accommodate more scene requirements.

According to the special automatic screw screwing machine provided by the utility model, the clamping mechanism 230 is used for grabbing a second part such as the annular ring 102 placed on the conveying line 220 and placing the second part such as the kettle body 101, the pneumatic screwdriver 240 is used for sucking the screw 103 and placing the screw 103 at a specified position to complete the screw 103 screwing action, the mechanical arm 210 can realize the displacement and lifting requirements in the whole process, the full-automatic screw 103 screwing process can be realized, and the efficiency is high.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. An automatic screw tightening special machine for grabbing a screw and assembling a first part and a second part, comprising: the mechanical arm and the conveying line;

the conveying line is used for conveying the second part;

2. The automatic screw tightening machine according to claim 1, wherein the clamping mechanism comprises a clamping jaw cylinder arranged on the mechanical arm and a clamping jaw arranged on the clamping jaw cylinder.

3. The automatic screw tightening machine according to claim 2, wherein the mechanical arm is provided with a lifting seat plate, the clamping jaw cylinder is arranged on the seat plate, the clamping jaw faces the conveying line, and the pneumatic screwdriver is arranged on one side of the seat plate.

4. The automatic screw driving special machine according to claim 3, wherein a screw driver is arranged on the seat plate, the screw driver is in driving connection with the pneumatic screw driver, a guide rail is further arranged on the seat plate, and the pneumatic screw driver is in sliding connection with the guide rail through a sliding block.

5. The automatic screw tightening machine according to claim 1, wherein the conveying line comprises a bracket, a conveying driving member, a transmission assembly and a jig plate, the conveying driving member and the transmission assembly are arranged on the bracket, the conveying driving member is in driving connection with the transmission assembly, and the jig plate is provided with a plurality of parallel arrays and is arranged on the transmission assembly.

6. The automatic screw tightening machine according to claim 5, wherein the transmission assembly comprises a first transmission shaft, a second transmission shaft, a first gear, a second gear and a first chain, the first transmission shaft and the second transmission shaft are arranged at two opposite ends of the length of the support, the two first gears are arranged on the first transmission shaft, the two second gears are arranged on the second transmission shaft, the conveying driving piece is in driving connection with the first transmission shaft, the first chain is arranged with two, the first gears and the second gears on the same side of the support are in driving connection through one first chain, and the jig frame is arranged on the two first chains.

7. The automatic screw driving special machine according to claim 6, wherein the transmission assembly further comprises a third gear, the third gear is in transmission connection with the first gear through a second chain, and the conveying driving piece is in driving connection with the third gear.

8. The automatic screw tightening machine according to claim 5, wherein a clamping mechanism is arranged on the other side of the conveying line, the clamping mechanism comprises a lifting driving piece, a telescopic driving piece is arranged at the output end of the lifting driving piece, a clamp is arranged at the output end of the telescopic driving piece and used for clamping a second part arranged on the jig plate, and a position sensor is arranged at the position of the support corresponding to the clamp.

9. The automatic screw machine according to any one of claims 1 to 8, further comprising a screw station provided outside the conveyor line, the screw station being provided close to the mechanical arm, the screw station being for placing the first part.

10. The automatic screw machine according to any one of claims 1 to 8, wherein the robot arm is provided on a movable stage, and the stage is further provided with screw supply structure.