CN212351035U - Screw tightening mechanism - Google Patents

Screw tightening mechanism Download PDF

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Publication number
CN212351035U
CN212351035U CN202020947756.8U CN202020947756U CN212351035U CN 212351035 U CN212351035 U CN 212351035U CN 202020947756 U CN202020947756 U CN 202020947756U CN 212351035 U CN212351035 U CN 212351035U
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China
Prior art keywords
axis
suction nozzle
fixing plate
screwdriver
synchronous belt
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CN202020947756.8U
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Chinese (zh)
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雷志斌
何冰强
骆显让
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雷志斌
何冰强
骆显让
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Abstract

The utility model discloses a screw tightening mechanism, which comprises a Z-axis rail plate, a Z-axis motor, a Z-axis synchronous belt component, an upper Z-axis rail, a Z-axis slider, a suction nozzle component and an electric screwdriver component; the Z-axis motor, the Z-axis synchronous belt assembly and the upper Z-axis rail are arranged on the Z-axis rail plate; one side of the Z-axis sliding block is clamped with the Z-axis synchronous belt assembly and is slidably arranged on the upper Z-axis linear rail; the Z-axis motor drives the Z-axis synchronous belt assembly to run; the electric screwdriver component comprises an electric screwdriver, a chassis and a screwdriver fixing plate; the screwdriver fixing plate is arranged on the upper Z-axis rail, the chassis is arranged on the screwdriver fixing plate, and the electric screwdriver penetrates through a hole in the chassis and is fixed; the suction nozzle component comprises a suction nozzle and a suction nozzle fixing plate; the suction nozzle fixing plate is installed on the screwdriver fixing plate, and the suction nozzle is installed on the suction nozzle fixing plate. The utility model discloses a screw tightening mechanism can accomplish the screw tightening operation automatically, need not to rely on the manpower, saves time, laborsaving, reduction in production cost.

Description

Screw tightening mechanism
Technical Field
The utility model relates to an automation equipment technical field, in particular to screw tightening mechanism.
Background
With the development of social economy, the industrial production capacity of China is greatly improved. Most industrial products need to be fixed through screws, and generally, a product needs to be fixed through a large number of screws. However, the current screw-driving production steps are usually performed manually, but the use of manual screw-driving is time-consuming and labor-consuming, and the production cost is increasing with the increase of labor cost.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect and not enough, provide a screw tightening mechanism, can accomplish the screwing up operation of screw automatically.
The purpose of the utility model can be realized by the following technical scheme: the screw tightening mechanism comprises a Z-axis rail plate, a Z-axis motor, a Z-axis synchronous belt component, an upper Z-axis rail, a Z-axis sliding block, a suction nozzle component and an electric screwdriver component; the Z-axis motor, the Z-axis synchronous belt assembly and the upper Z-axis rail are arranged on the Z-axis rail plate; one side of the Z-axis sliding block is clamped with the Z-axis synchronous belt assembly and is slidably arranged on the upper Z-axis linear rail; the Z-axis motor drives the Z-axis synchronous belt assembly to run; the electric screwdriver component comprises an electric screwdriver, a chassis and a screwdriver fixing plate; the electric screwdriver is arranged on the Z-axis sliding block, the base frame is arranged on the screwdriver fixing plate, and the electric screwdriver penetrates through a hole in the base frame and is fixed; the suction nozzle component comprises a suction nozzle and a suction nozzle fixing plate; the suction nozzle fixing plate is installed on the screwdriver fixing plate, and the suction nozzle is installed on the suction nozzle fixing plate.
As a preferred technical scheme, the Z-axis synchronous belt assembly comprises a Z-axis main belt pulley, a Z-axis secondary belt pulley, a Z-axis synchronous belt and a Z-axis belt pulley mounting shaft; the Z-axis synchronous belt pulley is characterized in that a Z-axis belt pulley mounting shaft is mounted at one end of the Z-axis rail plate, a Z-axis motor is mounted at the other end of the Z-axis rail plate, a Z-axis main belt pulley is mounted on an output shaft of the Z-axis motor, a Z-axis auxiliary belt pulley is sleeved on the Z-axis belt pulley mounting shaft, and a Z-axis synchronous belt bypasses the Z-axis main belt pulley and the Z-axis auxiliary belt pulley to form a closed loop.
According to the preferable technical scheme, a Z-axis belt wheel adjusting block is arranged on the Z-axis belt wheel mounting shaft, a screw fixing hole is formed in the Z-axis rail plate, a long mounting hole is formed in the Z-axis belt wheel adjusting block, and the Z-axis belt wheel adjusting block is connected with the Z-axis rail plate through screws. The Z-axis belt wheel adjusting block can adjust the tightness of the Z-axis synchronous belt.
As a preferable technical solution, the Z-axis slider includes a first slider and a second slider; one side edge of the first sliding block is clamped with the Z-axis synchronous belt, and an upper stop block is arranged on the first sliding block; the screwdriver fixing plate is installed on the second sliding block, an upper guide pillar fixing block is arranged on the screwdriver fixing plate, the lower end of the upper guide pillar is fixedly connected with a lower guide pillar fixing block, and the upper end of the upper guide pillar is movably connected with the upper blocking block.
As a preferred technical scheme, a synchronous belt clamping plate and a synchronous belt pressing block are arranged on the first sliding block; the hold-in range pinch-off blades passes through screw fixed connection with first slider, the hold-in range briquetting is fixed at the side of hold-in range pinch-off blades, and the hold-in range briquetting is equipped with the tooth corresponding with Z axle hold-in range, and the one side that the hold-in range briquetting was equipped with the tooth forms Z axle synchronous belt groove with the side of hold-in range pinch-off blades.
As a preferred technical scheme, a middle pressure spring is arranged on the upper guide post, and an upper limiting glue is arranged at the top of the upper guide post. The medium-pressure spring can finish the screw screwing operation of the electric screw driver by using spring force, is favorable for controlling the screwing force and plays a stroke buffering role.
As a preferred technical scheme, a lower Z-axis rail is arranged on the screwdriver fixing plate, and a lower sliding block is arranged on the lower Z-axis rail; the suction nozzle fixing plate is arranged on the lower sliding block; the top of the suction nozzle fixing plate is provided with an upper blocking glue, the upper blocking glue is fixedly connected with the lower end of the lower guide pillar, and the upper end of the lower guide pillar is movably connected with the upper guide pillar fixing block.
As a preferred technical scheme, a lower pressure spring is arranged on the lower guide post, and middle limiting glue is arranged at the top of the lower guide post. Under the spring force effect of pressure spring down, the guide pillar can push down the suction nozzle mounting panel down, makes the screw position butt of the adsorbed screw of suction nozzle and work piece, improves the steadiness when the screw is screwed up.
As an optimal technical scheme, an upper rod is arranged at the upper end of the Z-axis rail plate, and an upper tension spring is connected with the upper rod and an upper guide post fixing block. When the electric screwdriver rises, the upper tension spring can pull the screwdriver fixing plate, so that the Z-axis motor is more labor-saving, and the service life of the Z-axis motor is prolonged.
As a preferred technical scheme, top limit glue and bottom limit glue are respectively arranged at the side edge of the upper end of the upper Z axis rail and at the position right below the upper Z axis rail; the bottom frame is provided with a lower glue stop, and the lower glue stop is provided with a lower glue stop fixing block.
Compared with the prior art, the utility model, following advantage and beneficial effect have: the screw tightening mechanism of the utility model can automatically tighten the screw on the screw hole site of the workpiece; the synchronous belt is adopted for transmission, so that the transmission efficiency is high; when the electric screwdriver is used for screwing the screw, the spring pressure is adopted to provide the feeding force, so that the control of the screwing force is facilitated, the stroke buffering effect is achieved, and the electric screwdriver cannot be damaged. The utility model discloses a screw tightening mechanism need not to rely on the manpower, saves time, laborsaving, reduction in production cost.
Drawings
Fig. 1 is a schematic side view of a screw tightening mechanism according to an embodiment of the present invention;
fig. 2 is another side view schematically illustrating the screw tightening mechanism according to the embodiment of the present invention;
fig. 3 is a cross-sectional view of a mouthpiece according to an embodiment of the present invention.
Wherein: 11: z-axis rail plate, 12: z-axis motor, 131: z-axis primary pulley, 132: z-axis secondary pulley, 133: z-axis synchronous belt, 134: z-axis pulley adjusting block, 14: upper Z-axis rail, 151: first slider, 152: second slider, 153: upper stopper, 154: upper guide post, 155: middle compression spring, 156: timing belt clamping plate, 157: synchronous belt briquetting, 158: first sensing block, 159: first sensing slot, 1510: first induction slot mounting plate, 1511: top limit glue, 1512: bottom limit glue, 1513: go up spacing glue, 161: electric screwdriver, 162: chassis, 163: screwdriver fixing plate, 164: upper guide pillar fixing block, 171: suction nozzle, 172: suction nozzle fixing plate, 173: lower Z-axis rail, 174: lower slider, 175: go up to keep off glue, 176: lower blocking glue, 177: lower block rubber fixing block, 178: lower guide post, 179: lower pressure spring, 1710: middle limit glue, 181: upper rod, 182: and an upper tension spring.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.
As shown in fig. 1 and 2, the screw tightening mechanism includes a Z-axis rail plate 11, a Z-axis motor 12, a Z-axis timing belt assembly, an upper Z-axis rail 14, a Z-axis slider, a suction nozzle assembly, and an electric screwdriver assembly.
The Z-axis motor 12, the Z-axis synchronous belt assembly and the upper Z-axis rail 14 are all installed on the Z-axis rail plate 11. The Z-axis timing belt assembly includes a Z-axis primary pulley 131, a Z-axis secondary pulley 132, a Z-axis timing belt 133, and a Z-axis pulley mounting shaft. A Z-axis pulley mounting shaft (not shown in the figure) is mounted on the Z-axis pulley adjusting block 134, the Z-axis pulley adjusting block 134 is mounted at the lower end of the Z-axis rail plate 11, the Z-axis motor 12 is mounted at the upper end of the Z-axis rail plate 11, the Z-axis primary pulley 131 is mounted on the output shaft of the Z-axis motor 12, the Z-axis secondary pulley 132 is sleeved on the Z-axis pulley mounting shaft, and the Z-axis synchronous belt 133 forms a closed loop by bypassing the Z-axis primary pulley 131 and the Z-axis secondary pulley 132. The Z-axis motor 12 drives the Z-axis main belt pulley 131 to operate, thereby driving the Z-axis synchronous belt 133 to operate. In order to adjust the tightness of the Z-axis synchronous belt 133, a Z-axis belt wheel adjusting block 134 is arranged on the Z-axis belt wheel mounting shaft, a long mounting hole is formed in the Z-axis belt wheel adjusting block 134, a screw fixing hole is formed in the Z-axis rail plate 11, and the Z-axis belt wheel adjusting block 134 is connected with the Z-axis rail plate 11 through a screw. When the tightness of the Z-axis synchronous belt 133 needs to be adjusted, the screw is loosened, the Z-axis belt wheel adjusting block 134 is pushed, and after the tightness of the Z-axis synchronous belt 133 is adjusted, the fixing screw is screwed.
The upper Z-axis rail 14 is disposed in parallel with the Z-axis timing belt 133. The Z-axis slide includes a first slide 151 and a second slide 152, and the first slide 151 and the second slide 152 are slidably mounted on the upper Z-axis rail 14. Be provided with hold-in range pinch-off blades 156 and hold-in range briquetting 157 on the first slider 151, hold-in range pinch-off blades 156 passes through screw fixed connection with first slider 151, and hold-in range briquetting 157 is fixed at hold-in range pinch-off blades 156's a side, hold-in range briquetting 157 is equipped with the tooth corresponding with Z axle hold-in range 133, the one side that hold-in range briquetting 157 was equipped with the tooth forms Z axle hold-in range groove of belt with hold-in range pinch-off blades 156. The Z-axis synchronous belt 133 can penetrate through the Z-axis synchronous belt groove, and the clamping of the synchronous belt pressing block 157 and the Z-axis synchronous belt 133 can be realized through tooth clamping. The first slider 151 is further provided with an upper stopper 153, and the upper stopper 153 is fixed to the timing belt clamping plate 156 by a screw. The screwdriver fixing plate 163 is mounted on the second slider 152, an upper guide post fixing block 164 is disposed on the screwdriver fixing plate 163, the lower end of the upper guide post 154 is fixedly connected with the lower guide post fixing block 164, and the upper end of the upper guide post 154 passes through the hole of the upper stopper 153 and is movably connected with the upper stopper 153.
In order to sense the limit movement position of the first slider 151 on the upper Z-axis rail 14, a first sensing block 158 is provided at the upper end of the timing belt clamping plate 156, and a first sensing groove 159 is provided at the upper end of the Z-axis rail plate 11. The first sensing slot 159 is mounted on a first sensing slot mounting plate 1510, and the first sensing slot mounting plate 1510 is fixedly connected to the Z-axis rail plate 11 by screws. The size of the first sensing block 158 is adapted to the size of the first sensing slot 159. When the first slider 151 slides to the upper end limit position of the upper Z-axis rail 14 in the drawing, the first sensing piece 158 is inserted into the first sensing groove 159, so that the Z-axis motor 12 can be controlled to stop or reverse by a sensor or the like.
The electric screwdriver assembly includes an electric screwdriver 161, a base frame 162, and a screwdriver fixing plate 163. A screwdriver fixing plate 163 is installed on the second slider 152, the base frame 162 is installed on the screwdriver fixing plate 163, and the electric screwdriver 161 is inserted through a hole of the base frame 162 and fixed. As the second slider 152 moves on the upper Z-axis rail 14, the power screwdriver 161 can perform up-and-down movement in the Z-axis direction.
The suction nozzle assembly includes a suction nozzle 171, a suction nozzle fixing plate 172, a lower slider 174, a lower Z-axis rail 173, and a lower guide post 178. The lower Z-axis rail 173 is mounted on the screwdriver fixing plate 163, the lower slider 174 is slidably mounted on the lower Z-axis rail 173, the suction nozzle fixing plate 172 is mounted on the lower slider 174, and the suction nozzle 171 is mounted on the suction nozzle fixing plate 172. The suction nozzle fixing plate 172 has an L-shape, and a horizontal portion of the L-shape is used for fixing the suction nozzle 171 such that the suction nozzle 171 is positioned right under the electric screw driver 161. As shown in fig. 3, a shaft hole is formed through the center of the suction nozzle 171, a screw can be sucked to the bottom of the suction nozzle 171, and the electric screwdriver 161 can be inserted into the suction nozzle 171 from the top of the suction nozzle to screw the screw. The bottom frame is provided with a lower glue stop 176, and the lower glue stop 176 is provided with a lower glue stop fixing block 177. When the nozzle fixing plate 172 moves downward, the nozzle fixing plate 172 is prevented from colliding with the bottom frame 162. An upper stop rubber 175 is arranged at the top of the suction nozzle fixing plate, a lower guide post 178 is arranged between the upper guide post fixing block 164 and the upper stop rubber 175, the lower end of the lower guide post 178 is fixedly connected with the upper stop rubber 175, and the upper end of the lower guide post 178 penetrates through a hole of the upper guide post fixing block 164 and is movably connected with the upper guide post fixing block 164. The lower guide post 178 is provided with a lower compression spring 179, the lower compression spring 179 is in a compression state, and the suction nozzle fixing plate 172 can be pressed down under the action of the spring force of the lower compression spring 179, so that the screw adsorbed by the suction nozzle 171 is abutted to the screw hole position of the workpiece, and the stability of the screw during screwing is improved. The top of the lower guide pillar 178 is provided with a middle limiting rubber 1710, and the middle limiting rubber 1710 is used for preventing the lower guide pillar 178 from colliding with the upper stop block 153.
In this embodiment, the upper guide post 154 is provided with a middle compression spring 155. When the electric screw driver 161 moves to the lowest position, the second slider 152 does not move downward any more, and the first slider 151 continues to move downward by the Z-axis motor 12, so that the middle compression spring 155 is compressed by the upper stopper 153 by a distance of about 2-3mm, and screws are screwed in by different lengths as required. The spring force generated by the compressed middle compression spring 155 pushes the electric screwdriver 161 to move downwards continuously to complete the screwing operation. Because the specifications of the screws are different and the required tightening force is different, if the belt transmission is adopted to drive the electric screwdriver 161 to complete the screw tightening operation, the electric screwdriver is likely to go down continuously after the screws are screwed in place, so that the screwdriver, the workpiece or the screws are damaged. The electric screwdriver 161 can complete the screwing operation by using the spring force, which is beneficial to the control of the screwing force and plays a stroke buffering role. An upper limit glue 1513 is installed on the top of the upper guide pillar 154, and the upper limit glue 1513 is used for preventing the upper guide pillar 154 from colliding with the first induction groove mounting plate 1510.
An upper rod 181 is further arranged at the upper end of the Z-axis rail plate 11, and an upper tension spring 182 is connected with the upper rod 181 and the upper guide post fixing block 164. The upper tension spring 182 is in a tension state, and when the electric screwdriver 161 is lifted, the upper tension spring 182 pulls the screwdriver fixing plate 163, so that the Z-axis motor 12 is more labor-saving, and the service life of the Z-axis motor 12 is prolonged.
The utility model discloses a theory of operation: the Z-axis motor 12 drives the Z-axis synchronous belt 133 to operate, so as to drive the first sliding block 151 to move downwards, the electric screw driver 161 also moves downwards under the action of gravity, when the position of the screw arrangement machine is reached, the suction nozzle 171 adsorbs screws on the arrangement machine, the screw tightening mechanism adsorbing the screws moves to the position above a workpiece and aligns with screw hole positions of the workpiece, then the Z-axis motor 12 continues to drive the first sliding block 151 to move, the middle pressure spring is compressed to the length of the required screwed screws, the electric screw driver is started, and the operation of screwing the screws is completed downwards along the Z axis under the pressure action of the middle pressure spring 155. After the screws are screwed in place, the Z-axis motor 12 drives the electric screwdriver 161 to move upward along the Z-axis, and after the workpiece is turned to another screw hole, the screw tightening mechanism completes the next screw tightening operation.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. The screw tightening mechanism is characterized by comprising a Z-axis rail plate, a Z-axis motor, a Z-axis synchronous belt component, an upper Z-axis rail, a Z-axis sliding block, a suction nozzle component and an electric screwdriver component; the Z-axis motor, the Z-axis synchronous belt assembly and the upper Z-axis rail are arranged on the Z-axis rail plate; one side of the Z-axis sliding block is clamped with the Z-axis synchronous belt assembly and is slidably arranged on the upper Z-axis linear rail; the Z-axis motor drives the Z-axis synchronous belt assembly to run;
the electric screwdriver component comprises an electric screwdriver, a chassis and a screwdriver fixing plate; the electric screwdriver is arranged on the Z-axis sliding block, the base frame is arranged on the screwdriver fixing plate, and the electric screwdriver penetrates through a hole in the base frame and is fixed;
the suction nozzle component comprises a suction nozzle and a suction nozzle fixing plate; the suction nozzle fixing plate is installed on the screwdriver fixing plate, and the suction nozzle is installed on the suction nozzle fixing plate.
2. The screw tightening mechanism according to claim 1, wherein the Z-axis synchronous belt assembly includes a Z-axis primary pulley, a Z-axis secondary pulley, a Z-axis synchronous belt, and a Z-axis pulley-mounting shaft; the Z-axis synchronous belt pulley is characterized in that a Z-axis belt pulley mounting shaft is mounted at one end of the Z-axis rail plate, a Z-axis motor is mounted at the other end of the Z-axis rail plate, a Z-axis main belt pulley is mounted on an output shaft of the Z-axis motor, a Z-axis auxiliary belt pulley is sleeved on the Z-axis belt pulley mounting shaft, and a Z-axis synchronous belt bypasses the Z-axis main belt pulley and the Z-axis auxiliary belt pulley to form a closed loop.
3. The screw tightening mechanism according to claim 2, wherein the Z-axis pulley mounting shaft is provided with a Z-axis pulley adjustment block, the Z-axis rail plate is provided with a screw fixing hole, the Z-axis pulley adjustment block is provided with an elongated mounting hole, and the Z-axis pulley adjustment block is connected with the Z-axis rail plate through a screw.
4. The screw tightening mechanism according to claim 2 or 3, wherein the Z-axis slider includes a first slider and a second slider; one side edge of the first sliding block is clamped with the Z-axis synchronous belt, and an upper stop block is arranged on the first sliding block; the screwdriver fixing plate is installed on the second sliding block, an upper guide pillar fixing block is arranged on the screwdriver fixing plate, the lower end of the upper guide pillar is fixedly connected with a lower guide pillar fixing block, and the upper end of the upper guide pillar is movably connected with the upper blocking block.
5. The screw tightening mechanism according to claim 4, wherein a timing belt clamping plate and a timing belt pressing block are provided on the first slider; the hold-in range pinch-off blades passes through screw fixed connection with first slider, the hold-in range briquetting is fixed at the side of hold-in range pinch-off blades, and the hold-in range briquetting is equipped with the tooth corresponding with Z axle hold-in range, and the one side that the hold-in range briquetting was equipped with the tooth forms Z axle synchronous belt groove with the side of hold-in range pinch-off blades.
6. The screw tightening mechanism according to claim 4, wherein a middle compression spring is provided on the upper guide post, and an upper limit glue is provided on a top of the upper guide post.
7. The screw tightening mechanism according to claim 4, wherein a lower Z-axis rail is provided on the screwdriver fixing plate, and a lower slider is provided on the lower Z-axis rail; the suction nozzle fixing plate is arranged on the lower sliding block; the top of the suction nozzle fixing plate is provided with an upper blocking glue, the upper blocking glue is fixedly connected with the lower end of the lower guide pillar, and the upper end of the lower guide pillar is movably connected with the upper guide pillar fixing block.
8. The screw tightening mechanism according to claim 7, wherein a lower compression spring is provided on the lower guide post, and a middle stopper is provided on a top of the lower guide post.
9. The screw tightening mechanism according to claim 4, wherein an upper rod is provided at an upper end of the Z-axis rail plate, and an upper tension spring connects the upper rod and the upper guide post fixing block.
10. The screw tightening mechanism according to claim 1, wherein a top limit glue and a bottom limit glue are respectively provided at an upper end side and a right lower end of the upper Z-axis rail; the bottom frame is provided with a lower glue stop, and the lower glue stop is provided with a lower glue stop fixing block.
CN202020947756.8U 2020-05-29 2020-05-29 Screw tightening mechanism Active CN212351035U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020947756.8U CN212351035U (en) 2020-05-29 2020-05-29 Screw tightening mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020947756.8U CN212351035U (en) 2020-05-29 2020-05-29 Screw tightening mechanism

Publications (1)

Publication Number Publication Date
CN212351035U true CN212351035U (en) 2021-01-15

Family

ID=74156030

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020947756.8U Active CN212351035U (en) 2020-05-29 2020-05-29 Screw tightening mechanism

Country Status (1)

Country Link
CN (1) CN212351035U (en)

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