Automatic screw locking device and automatic screw locking machine

Abstract

The present invention discloses an automatic screw locking device and an automatic screw locking machine, which relate to the field of screw locking technology. The automatic screw locking device comprises a three-axis driving mechanism, a screw locking mechanism and a transmission positioning device. Driven by the three-axis driving mechanism, the screw locking mechanism can reciprocate along a first preset direction, a second preset direction and a third preset direction which are perpendicular to each other. The screw locking mechanism is constructed to have a normal state and an adsorption state. The transmission mechanism is constructed to move the part to be locked along the second preset direction. When the part to be locked reaches a predetermined position, the lifting mechanism lifts the part to be locked and separates it from the transmission mechanism, and the screw locking mechanism performs locking.

Description

Technical Field

[0001] The present invention relates to the technical field of screw locking, and in particular to an automatic screw locking device and an automatic screw locking machine. Background Art

[0002] With the maturity of mechanical technology, the introduction of automated machinery into production lines has become a major trend to significantly reduce labor costs.

[0003] The existing screw locking machines have low production efficiency and are unable to lock parts to be locked in different environments. Summary of the invention

[0004] The first object of the present invention is to provide an automatic screw locking device, which can accurately position and lock the parts to be locked, and can effectively lock the parts to be locked in different environments.

[0005] The second object of the present invention is to provide an automatic screw locking machine, which has the above-mentioned automatic screw locking device. Through the automatic screw locking machine, the parts to be locked can be accurately positioned and locked, and the parts to be locked in different environments can be effectively locked.

[0006] The embodiment of the present invention is achieved as follows:

[0007] An automatic screw locking device, comprising:

[0008] Three-axis driving mechanism;

[0009] A screw locking mechanism, the screw locking mechanism is in driving connection with the three-axis driving mechanism, and the screw locking mechanism can reciprocate along a first preset direction, a second preset direction and a third preset direction which are perpendicular to each other under the drive of the three-axis driving mechanism;

[0010] The screw locking mechanism comprises a chronological bird mouth, a driving member, an electric screwdriver and a vacuum adsorption device. The chronological bird mouth and the electric screwdriver are respectively connected to the driving member by transmission. The chronological bird mouth and the electric screwdriver are respectively driven by the driving member to reciprocate along a third preset direction. The vacuum adsorption device is connected to the chronological bird mouth.

[0011] The screw locking mechanism is constructed to have two working states:

[0012] In the normal state, the sled beak moves in the third preset direction under the drive of the driving member and approaches the part to be locked, and the electric screwdriver moves in the third preset direction under the drive of the driving member and pushes out the screw in the sled beak and locks it with the part to be locked;

[0013] In the adsorption state, the shunting bird mouth generates negative pressure under the action of the vacuum adsorption device and adsorbs the part to be locked to the shunting bird mouth, and the electric screwdriver pushes out the screws in the shunting bird mouth and locks it with the part to be locked;

[0014] The conveying and positioning device has a conveying mechanism and a lifting mechanism. The conveying mechanism is constructed to move the part to be locked along a second preset direction. When the part to be locked reaches a predetermined position, the lifting mechanism lifts the part to be locked and separates it from the conveying mechanism, and the screw locking mechanism performs locking.

[0015] The inventor found that when locking a workpiece, the environment in which the workpiece is located is different, and the ordinary locking method cannot meet the needs, resulting in the locking nail failure of the workpiece. For example, when locking and installing the filter cover, there are raised electronic devices on the filter cover, and the screw locking space near it and the screw locking space on the waterproof edge of the cover is small. If the ordinary locking method is used, when locking under the locking mechanism, the screw posture is not vertical and the coaxiality with the screw bit is not good, resulting in failure to lock.

[0016] To this end, the inventor has designed the above-mentioned automatic screw locking device, which can accurately position and lock the parts to be locked, and can effectively lock the parts to be locked in different environments. The automatic screw locking device includes a three-axis driving mechanism, a screw locking mechanism, and a conveying and positioning device. Among them, the screw locking mechanism can reciprocate along the first preset direction, the second preset direction, and the third preset direction that are perpendicular to each other under the drive of the three-axis driving mechanism, thereby effectively locking each screw hole in the effective working plane. Through the conveying mechanism in the conveying and positioning device, the parts to be locked are conveyed by the conveying and positioning device, and the lifting mechanism of the conveying and positioning device, so that the parts to be locked are locked to the preset locking position by the screw locking mechanism. In order to overcome different locking environments, the screw locking mechanism has two locking working states: normal state and adsorption state. Among them, the screw locking mechanism has a chronological bird's beak, a driving member, an electric screwdriver, and a vacuum adsorption device. The normal state is: when the locking environment is good and meets the ordinary locking method, the aligning bird's mouth moves in the third preset direction under the drive of the driving member and approaches the part to be locked. The electric screwdriver moves in the third preset direction under the drive of the driving member and pushes out the screw in the aligning bird's mouth and locks it with the part to be locked. The adsorption state is: when the locking environment is not good, the locking space is small, the screw posture is not vertical, and the coaxiality with the screwdriver head is not good, for example, when the filter cover is installed on the waterproof edge of the cover, the aligning bird's mouth generates negative pressure under the action of the vacuum adsorption device and adsorbs the part to be locked to the aligning bird's mouth. The electric screwdriver pushes out the screw in the aligning bird's mouth and locks it with the part to be locked. The automatic screw locking device can accurately position and lock the part to be locked, and can effectively lock the parts to be locked in different environments.

[0017] In one embodiment of the present invention:

[0018] The three-axis driving mechanism includes a first driving part, a second driving part and a third driving part;

[0019] The first driving portion extends along a first preset direction, the second driving portion extends along a second preset direction, and the third driving portion extends along a third preset direction;

[0020] The first driving part is slidably connected to the second driving part, and the second driving part is configured to be able to reciprocate along the extension direction of the first driving part;

[0021] The second driving part is slidably connected to the third driving part, and the third driving part is configured to reciprocate along the second driving part in the extension direction of the second driving part;

[0022] The third driving part has a sliding device, and the sliding device is configured to reciprocate along the extension direction of the third driving part;

[0023] The screw locking mechanism is connected with the sliding device.

[0024] In one embodiment of the present invention:

[0025] The first driving part is a first mechanical arm, the first mechanical arm extends along a first preset direction, and the first mechanical arm has a first sliding member that reciprocates along the first preset direction;

[0026] The second driving part is a second mechanical arm, the second mechanical arm extends along a second preset direction, and the second mechanical arm has a second sliding member that reciprocates along the second preset direction;

[0027] The third driving part is a third mechanical arm, and the third mechanical arm extends along a second preset direction;

[0028] The second mechanical arm is disposed on the first sliding member and moves along with the first sliding member;

[0029] The third mechanical arm is arranged on the second sliding member and moves along with the second sliding member.

[0030] In one embodiment of the present invention:

[0031] The screw locking mechanism includes a fixing seat, a positioning bird mouth, a driving member, an electric screwdriver and a vacuum adsorption device;

[0032] The fixing seat is transmission-connected with the screw locking mechanism;

[0033] The electric screwdriver and the aligning bird mouth are slidably arranged on the fixing seat along a third preset direction, and the aligning bird mouth is close to the transmission positioning device;

[0034] The driving parts include electric screwdriver driving parts and bird beak driving parts;

[0035] The electric screwdriver driving member drives the electric screwdriver to move along a third preset direction, and the screwdriver rod of the electric screwdriver is coaxial with the opening of the shunting bird beak;

[0036] The bird's beak driving member drives the sequential bird's beak to move along a third preset direction.

[0037] In one embodiment of the present invention:

[0038] The fixing seat is provided with a guide rod along a third preset direction, and the electric screwdriver and the sequence bird mouth are slidably arranged on the guide rod along the third preset direction.

[0039] In one embodiment of the present invention:

[0040] The electric screwdriver driving part and the bird beak driving part are cylinders respectively arranged on the fixed seat;

[0041] The piston rods of the two cylinders are respectively connected with the electric screwdriver and the sequence bird's mouth for transmission.

[0042] In one embodiment of the present invention:

[0043] The vacuum adsorption device includes a vacuum tube, a vacuum tube pushing device and a negative pressure device;

[0044] The vacuum tube is located between the shunting bird beak and the electric screwdriver. The vacuum tube is in transmission connection with the vacuum tube driving device and moves along a third preset direction under the driving of the vacuum tube driving device. The negative pressure device is connected to the vacuum tube.

[0045] When the screw locking mechanism is in the adsorption state, the vacuum tube passes through the opening of the slewing beak to adsorb the part to be locked.

[0046] In one embodiment of the present invention:

[0047] The conveying and positioning device also includes a proximity sensor, which is arranged at a predetermined position. When the part to be locked arrives at the predetermined position, the proximity sensor is triggered and fed back to the lifting mechanism, and the lifting mechanism works.

[0048] In one embodiment of the present invention:

[0049] The conveying and positioning device also includes a clamping mechanism, which is located between the predetermined position and the lifting mechanism;

[0050] When the lifting mechanism works, the clamping mechanism clamps the parts to be locked.

[0051] An automatic screw locking machine, the automatic screw locking machine comprising an electrical cabinet base, a gantry frame, an equipment housing protective cover and any one of the above automatic screw locking devices;

[0052] The gantry frame is arranged on the base of the electrical cabinet, the three-axis driving mechanism is arranged on the gantry frame, and the transmission positioning device is arranged on the base of the electrical cabinet;

[0053] The equipment housing protective cover is arranged on the edge of the electrical cabinet base.

[0054] The technical solution of the present invention has at least the following beneficial effects:

[0055] The present invention provides an automatic screw locking device, which can accurately position and lock a part to be locked, and can effectively lock the part to be locked in different environments.

[0056] The present invention provides an automatic screw locking machine, which has the above-mentioned automatic screw locking device. The automatic screw locking machine can accurately position and lock the parts to be locked, and effectively lock the parts to be locked in different environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0058] Figure 1 This is a schematic diagram of the structure of the automatic screw locking machine in Embodiment 1 of the present invention at a first viewing angle;

[0059] Figure 2 It is a structural schematic diagram of the automatic screw locking machine in Example 1 of the present invention at a second viewing angle;

[0060] Figure 3 It is a structural schematic diagram of the three-axis driving mechanism and the screw locking mechanism in Example 1 of the present invention;

[0061] Figure 4 It is a structural schematic diagram of the screw locking mechanism in Embodiment 1 of the present invention at a first viewing angle;

[0062] Figure 5 is a structural schematic diagram of the screw locking mechanism in Embodiment 1 of the present invention at a second viewing angle;

[0063] Figure 6 It is a structural schematic diagram of the screw locking mechanism in the adsorption state in the embodiment 1 of the present invention;

[0064] Figure 7 It is a structural schematic diagram of the screw locking mechanism in the normal state in the first embodiment of the present invention;

[0065] Figure 8 It is a schematic diagram of the structure of the transmission positioning device in Example 1 of the present invention.

[0066] Icons: 10-automatic screw locking device; 11-three-axis driving mechanism; 12-screw locking mechanism; 12a-electric screwdriver driving member; 12b-bird beak driving member; 13-transmission and positioning device; 20-automatic screw locking machine; 21-electric cabinet base; 22-gantry frame; 23-equipment housing protective cover; 80-vacuum tube; 80a-adsorption hole; 81-vacuum tube pushing device; 90-screw insertion hole; 111-first driving part; 112-second driving part; 113-third driving part; 114-guide base; 120-sequential bird beak; 120a-bird beak seat; 120b-multi-petal seriation bird beak; 121-electric screwdriver; 122-fixed seat; 123-guide rod; 130-transmission mechanism; 131-lifting mechanism; 132-proximity sensor; 133-pressing mechanism; 1200-bird beak slider; 1210-electric screwdriver slider. DETAILED DESCRIPTION

[0067] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0068] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0069] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0070] In the description of the present invention, it should be noted that the terms "inside", "below", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0071] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0072] In the present invention, unless otherwise clearly specified and limited, a first feature being above or below a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being above, above, and above a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being below, below, and below a second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0073] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0074] Example 1

[0075] The present embodiment provides an automatic screw locking device 10, which can accurately position and lock the parts to be locked, and can effectively lock the parts to be locked in different environments.

[0076] It should be noted that the present embodiment further provides an automatic screw locking machine 20 , wherein the automatic screw locking device 10 is included in the automatic screw locking machine 20 .

[0077] Please refer to Figure 1 , Figure 1 The specific structure of the automatic screw locking machine 20 in this embodiment is shown at a first viewing angle.

[0078] The automatic screw locking machine 20 includes an electrical cabinet base 21 , a gantry frame 22 , an equipment housing protective cover 23 and an automatic screw locking device 10 .

[0079] For explanation, please refer to Figure 2 , Figure 2 The specific structure of the automatic screw locking machine 20 in this embodiment is shown at a second viewing angle. Figure 2 In the figure, the device housing protective cover 23 is cancelled, and the automatic screw locking device 10 can be clearly displayed.

[0080] The automatic screw locking device 10 includes a three-axis driving mechanism 11 , a screw locking mechanism 12 and a conveying and positioning device 13 .

[0081] The gantry frame 22 is arranged on the electrical cabinet base 21 , the three-axis driving mechanism 11 is arranged on the gantry frame 22 , the transmission positioning device 13 is arranged on the electrical cabinet base 21 , and the equipment housing protective cover 23 is arranged on the edge of the electrical cabinet base 21 .

[0082] The screw locking mechanism 12 is in transmission connection with the three-axis driving mechanism 11. Driven by the three-axis driving mechanism 11, the screw locking mechanism 12 can reciprocate along the first preset direction, the second preset direction and the third preset direction which are perpendicular to each other. Figure 2 In the figure, the first preset direction, the second preset direction and the third preset direction are marked with arrows.

[0083] The screw locking mechanism 12 comprises a cam 120, a driving member, an electric screwdriver 121 and a vacuum adsorption device. The cam 120 and the electric screwdriver 121 are respectively connected to the driving member in a transmission manner. The cam 120 and the electric screwdriver 121 are respectively driven by the driving member to reciprocate along a third preset direction. The vacuum adsorption device is connected to the cam 120. The various structures of the screw locking mechanism 12 are explained in detail below.

[0084] In order to ensure that the screw locking mechanism 12 can be locked smoothly in different environments, the screw locking mechanism 12 is constructed to have two working states:

[0085] Normal state: the aligning bird beak 120 moves in the third preset direction under the drive of the driving member and approaches the part to be locked, and the electric screwdriver 121 moves in the third preset direction under the drive of the driving member and pushes out the screw in the aligning bird beak 120 and locks it with the part to be locked;

[0086] Adsorption state: the aligning bird beak 120 generates negative pressure under the action of the vacuum adsorption device and adsorbs the part to be locked to the aligning bird beak 120, and the electric screwdriver 121 pushes out the screws in the aligning bird beak 120 and locks it with the part to be locked.

[0087] To realize automatic transportation, the conveying and positioning device 13 has a conveying mechanism 130 and a lifting mechanism 131 (the conveying mechanism 130 and the lifting mechanism 131 are arranged in a Figure 8 The conveying mechanism 130 is constructed to move the piece to be locked along a second preset direction. When the piece to be locked reaches a predetermined position, the lifting mechanism 131 lifts the piece to be locked and separates it from the conveying mechanism 130, and the screw locking mechanism 12 performs locking.

[0088] Specifically, please refer to Figure 3 , Figure 3 The specific structures of the three-axis driving mechanism 11 and the screw locking mechanism 12 are shown.

[0089] The three-axis driving mechanism 11 includes a first driving unit 111 , a second driving unit 112 and a third driving unit 113 .

[0090] The first driving part 111 extends along the first preset direction, the second driving part 112 extends along the second preset direction, and the third driving part 113 extends along the third preset direction. The first driving part 111 is slidably connected to the second driving part 112, and the second driving part 112 is constructed to be able to reciprocate along the extension direction of the first driving part 111. The second driving part 112 is slidably connected to the third driving part 113, and the third driving part 113 is constructed to be able to reciprocate along the extension direction of the second driving part 112. The third driving part 113 has a sliding device, and the sliding device is constructed to be able to reciprocate along the extension direction of the third driving part 113. The sliding device is constructed to be connected to the screw locking mechanism 12.

[0091] Specifically, in this embodiment, the first driving part 111 is a first mechanical arm, the first mechanical arm extends along a first preset direction, and the first mechanical arm has a first sliding member that reciprocates along the first preset direction. The second driving part 112 is a second mechanical arm, the second mechanical arm extends along a second preset direction, and the second mechanical arm has a second sliding member that reciprocates along the second preset direction. The third driving part 113 is a third mechanical arm, and the third mechanical arm extends along the second preset direction. The second mechanical arm is arranged on the first sliding member and moves with the first sliding member. The third mechanical arm is arranged on the second sliding member and moves with the second sliding member.

[0092] It should be noted that the first sliding member is slidably disposed on the first mechanical arm;

[0093] It should be noted that the robot arm has a driving component for driving the sliding member with which it is provided to slide. For example, the first robot arm is also provided with a first rolling driving device, which is in transmission connection with the first sliding member, and the first rolling driving device drives the first sliding member to reciprocate along a first preset direction. The second sliding member is slidably provided on the second robot arm. The second robot arm is also provided with a second rolling driving device, which is in transmission connection with the second sliding member, and the second rolling driving device drives the second sliding member to reciprocate along a second preset direction.

[0094] In this embodiment, the third driving part 113 has a linear driving device, which is in transmission connection with the sliding device, and the linear driving device drives the sliding device to reciprocate along the third preset direction. In this embodiment, the linear driving device is a cylinder, and the piston rod of the cylinder is in transmission connection with the sliding device.

[0095] It should be noted that, in order to improve the stability of the screw locking mechanism 12, the three-axis driving mechanism 11 is further provided with a guide base 114. The guide base 114 extends along a first preset direction, the guide base 114 and the first driving part 111 are arranged at intervals, and the second driving part 112 is slidably connected to the guide base 114 and the first driving part 111 at opposite ends along the second preset direction.

[0096] Please refer to Figure 4 and Figure 5 , Figure 4 The specific structure of the screw locking mechanism 12 in this embodiment at a first viewing angle is shown. Figure 5 The specific structure of the screw locking mechanism 12 in this embodiment at a second viewing angle is shown.

[0097] The screw locking mechanism 12 includes a fixing seat 122 , a positioning bird beak 120 , a driving member, an electric screwdriver 121 and a vacuum adsorption device.

[0098] The fixing seat 122 extends along a third preset direction, and the alignment bird beak 120 and the electric screwdriver 121 are slidably disposed on the fixing seat 122 along the preset direction.

[0099] The fixing base 122 has a first end and a second end opposite to each other along a predetermined direction.

[0100] The electric screwdriver 121 and the chronological bird's beak 120 are sequentially arranged on the fixing seat 122 along a third preset direction, the electric screwdriver 121 is close to the first end, and the chronological bird's beak 120 is close to the second end, the driving member includes an electric screwdriver driving member 12a and a bird's beak driving member 12b, the electric screwdriver driving member 12a is arranged on the fixing seat 122 and close to the first end, the bird's beak driving member 12b is arranged on the fixing seat 122 and close to the second end, the electric screwdriver driving member 12a drives the electric screwdriver 121 to move along the third preset direction, the screw rod of the electric screwdriver 121 is coaxial with the opening of the chronological bird's beak 120, and the bird's beak driving member 12b drives the chronological bird's beak 120 to move along the third preset direction.

[0101] The fixing seat 122 is provided with a guide rod 123 along the third preset direction, and the electric screwdriver 121 and the aligning bird beak 120 are slidably provided on the guide rod 123 along the third preset direction. Specifically, the guide rod 123 is provided with an electric screwdriver slider 1210 and a bird beak slider 1200 at intervals along the third preset direction, the electric screwdriver slider 1210 and the bird beak slider 1200 are slidably provided on the guide rod 123, and the electric screwdriver 121 is detachably mounted on the electric screwdriver slider 1210. The aligning bird beak 120 is provided on the bird beak slider 1200.

[0102] Specifically, please refer to Figure 4 and Figure 5The aligning bird beak 120 includes a bird beak seat 120a and a multi-petal aligning bird beak 120b. The bird beak seat 120a and the multi-petal aligning bird beak 120b are connected in sequence along a third preset direction and their internal cavities are interconnected. The bird beak seat 120a is slidably connected to the fixing seat 122 through a bird beak slider 1200 and is drivingly connected to the bird beak driving member 12b. A screw insertion hole 90 is provided on the end face of the bird beak seat 120a away from the fixing seat 122. The screw insertion hole 90 is used to insert a screw for locking.

[0103] The vacuum adsorption device includes a vacuum tube 80, a vacuum tube pushing device 81 and a negative pressure device (not shown in the figure).

[0104] The vacuum tube 80 is located between the aligning bird beak 120 and the electric screwdriver 121 . The vacuum tube 80 is transmission-connected to the vacuum tube driving device 81 and moves along a third preset direction under the push of the vacuum tube driving device 81 . The negative pressure device is connected to the vacuum tube 80 .

[0105] Please refer to Figure 6 , Figure 6 The specific structure of the screw locking mechanism 12 in this embodiment is shown in the adsorption state. When the screw locking mechanism 12 is in the adsorption state, the vacuum tube 80 penetrates the opening of the aligning bird beak 120 to adsorb the part to be locked. For the convenience of comparison, Figure 7 The specific structure of the screw locking mechanism 12 in this embodiment is shown in a normal state.

[0106] The vacuum tube pushing device 81 includes a pushing cylinder arranged on a fixed seat 122 and a pushing seat arranged on the end face of the piston shaft of the pushing cylinder. The pushing seat is connected to the vacuum tube 80. An adsorption hole 80a connected to the vacuum tube 80 is provided on the end face of the pushing seat. The negative pressure device is connected to the adsorption hole 80a and provides negative pressure through the negative pressure device, so that the vacuum tube 80 generates a vacuum degree of 30-60KPa, thereby being able to adsorb the parts to be locked.

[0107] Please refer to Figure 8 , Figure 8 The specific structure of the transmission positioning device 13 in this embodiment is shown.

[0108] In this embodiment, the conveying and positioning device 13 includes a conveying mechanism 130 , a lifting mechanism 131 , a proximity sensor 132 and a pressing mechanism 133 .

[0109] The conveying mechanism 130 is a belt conveying mechanism arranged along the second preset direction, and the belt transmission end has two conveying belts laid at intervals. The lifting mechanism 131 and the proximity sensor 132 are arranged between the two conveying belts laid at intervals. Specifically, the proximity sensor 132 is arranged at a predetermined position. When the piece to be locked arrives at the predetermined position, the proximity sensor 132 is triggered and fed back to the lifting mechanism 131, and the lifting mechanism 131 works. The clamping mechanism 133 is located between the predetermined position and the lifting mechanism 131. When the lifting mechanism 131 works, the clamping mechanism 133 clamps the piece to be locked.

[0110] The inventor found that when locking a workpiece, the environment in which the workpiece is located is different, and the ordinary locking method cannot meet the needs, resulting in the locking nail failure of the workpiece. For example, when locking and installing the filter cover, there are raised electronic devices on the filter cover, and the screw locking space near it and the screw locking space on the waterproof edge of the cover is small. If the ordinary locking method is used, when locking under the locking mechanism, the screw posture is not vertical and the coaxiality with the screw bit is not good, resulting in failure to lock.

[0111] To this end, the inventor has designed the above-mentioned automatic screw locking device 10, which can accurately position and lock the parts to be locked, and can effectively lock the parts to be locked in different environments. The automatic screw locking device 10 includes a three-axis driving mechanism 11, a screw locking mechanism 12, and a transmission and positioning device 13. Among them, the screw locking mechanism 12 can reciprocate along the first preset direction, the second preset direction, and the third preset direction that are perpendicular to each other under the drive of the three-axis driving mechanism 11, thereby effectively locking each screw hole in the working plane. Through the transmission mechanism 130 in the transmission and positioning device 13, the parts to be locked are transported by the transmission and positioning device 13, and the lifting mechanism 131 of the transmission and positioning device 13, so that the parts to be locked are locked to the preset locking position by the screw locking mechanism 12. In order to overcome different locking environments, the screw locking mechanism 12 has two locking working states: normal state and adsorption state. The screw locking mechanism 12 has a chronological bird mouth 120, a driving member, an electric screwdriver 121 and a vacuum adsorption device. The normal state is: when the locking environment is good and meets the ordinary locking method, the chronological bird mouth 120 moves in the third preset direction under the drive of the driving member and approaches the part to be locked, and the electric screwdriver 121 moves in the third preset direction under the drive of the driving member and pushes out the screw in the chronological bird mouth 120 and locks it with the part to be locked. The adsorption state is: when the locking environment is not good, the locking space is small, the screw posture is not vertical, and the coaxiality with the screwdriver head is not good, for example, when the waterproof edge of the cover plate is locked on the filter cover plate, the chronological bird mouth 120 generates negative pressure under the action of the vacuum adsorption device and adsorbs the part to be locked to the chronological bird mouth 120, and the electric screwdriver 121 pushes out the screw in the chronological bird mouth 120 and locks it with the part to be locked. The automatic screw locking device 10 can accurately position and lock the parts to be locked, and can effectively lock the parts to be locked in different environments.

[0112] The automatic screw locking machine 20 has the automatic screw locking device 10 , through which the parts to be locked can be accurately positioned and locked, and the parts to be locked in different environments can be effectively locked.

[0113] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic screw locking device, It is characterized in that include: Three-axis driving mechanism; A screw locking mechanism, wherein the screw locking mechanism is in driving connection with the three-axis driving mechanism, and the screw locking mechanism can reciprocate along a first preset direction, a second preset direction, and a third preset direction which are perpendicular to each other under the drive of the three-axis driving mechanism; The screw locking mechanism comprises a chronological bird's mouth, a driving member, an electric screwdriver and a vacuum adsorption device. The chronological bird's mouth and the electric screwdriver are respectively connected to the driving member by transmission. The chronological bird's mouth and the electric screwdriver are respectively driven by the driving member to reciprocate along the third preset direction. The vacuum adsorption device is connected to the chronological bird's mouth. The screw locking mechanism is constructed to have two working states: In the normal state, the chronotype bird's beak moves in the third preset direction and approaches the part to be locked under the drive of the driving member, and the electric screwdriver moves in the third preset direction under the drive of the driving member and pushes out the screw in the chronotype bird's beak and locks it with the part to be locked; In the adsorption state, the aligning bird's mouth generates negative pressure under the action of the vacuum adsorption device and adsorbs the part to be locked to the aligning bird's mouth, and the electric screwdriver pushes out the screw in the aligning bird's mouth and locks the part to be locked; A conveying and positioning device, wherein the conveying and positioning device has a conveying mechanism and a lifting mechanism, wherein the conveying mechanism is configured to move the piece to be locked along the second preset direction, and when the piece to be locked reaches a predetermined position, the lifting mechanism lifts the piece to be locked and separates it from the conveying mechanism, and the screw locking mechanism performs locking; Wherein, the vacuum adsorption device comprises a vacuum tube, a vacuum tube driving device and a negative pressure device; the vacuum tube is located between the aligning bird mouth and the electric screwdriver, the vacuum tube is transmission-connected with the vacuum tube driving device and moves along the third preset direction under the push of the vacuum tube driving device, the negative pressure device is connected with the vacuum tube, so that the vacuum tube generates a vacuum degree of 30-60KPa; when the screw locking mechanism is in the adsorption state, the vacuum tube passes through the opening of the aligning bird mouth to adsorb the part to be locked; The chronological bird's beak includes a bird's beak seat and a multi-petal chronological bird's beak. The bird's beak seat and the multi-petal chronological bird's beak are connected in sequence along the third preset direction and their internal cavities are interconnected. A screw insertion hole is provided on the end face of the bird's beak seat, and the screw insertion hole is used to insert a screw for locking.

2. The automatic screw locking device according to claim 1, Features: The three-axis driving mechanism includes a first driving part, a second driving part and a third driving part; The first driving portion extends along the first preset direction, the second driving portion extends along the second preset direction, and the third driving portion extends along the third preset direction; The first driving part is slidably connected to the second driving part, and the second driving part is configured to be able to reciprocate along the extension direction of the first driving part; The second driving part is slidably connected to the third driving part, and the third driving part is configured to reciprocate along the second driving part in the extending direction of the second driving part; The third driving part has a sliding device, and the sliding device is configured to reciprocate along the extension direction of the third driving part; The screw locking mechanism is connected to the sliding device.

3. The automatic screw locking device according to claim 2, Features: The first driving part is a first mechanical arm, the first mechanical arm extends along the first preset direction, and the first mechanical arm has a first sliding member that reciprocates along the first preset direction; The second driving part is a second mechanical arm, the second mechanical arm extends along the second preset direction, and the second mechanical arm has a second sliding member that reciprocates along the second preset direction; The third driving part is a third mechanical arm, and the third mechanical arm extends along the second preset direction; The second mechanical arm is disposed on the first sliding member and moves following the first sliding member; The third mechanical arm is disposed on the second sliding member and moves following the second sliding member.

4. The automatic screw locking device according to claim 1, Features: The screw locking mechanism comprises a fixing seat, the aligning bird beak, the driving member, the electric screwdriver and the vacuum adsorption device; The fixing seat is transmission-connected with the screw locking mechanism; The electric screwdriver and the chronological bird beak are slidably arranged on the fixing seat along the third preset direction, and the chronological bird beak is close to the conveying and positioning device; The driving member includes an electric screwdriver driving member and a bird beak driving member; The electric screwdriver driving member drives the electric screwdriver to move along the third preset direction, and the screw rod of the electric screwdriver is coaxial with the opening of the spur bird mouth; The bird's beak driving member drives the chronological bird's beak to move along the third preset direction.

5. The automatic screw locking device according to claim 4, Features: The fixing seat is provided with a guide rod along the third preset direction, and the electric screwdriver and the sequence bird mouth are slidably arranged on the guide rod along the third preset direction.

6. The automatic screw locking device according to claim 5, Features: The electric screwdriver driving member and the bird beak driving member are cylinders respectively arranged on the fixing seat; The piston rods of the two cylinders are respectively connected to the electric screwdriver and the sequence bird's beak in transmission.

7. The automatic screw locking device according to claim 1, Features: The conveying and positioning device further comprises a proximity sensor, which is arranged at the predetermined position. When the part to be locked reaches the predetermined position, the proximity sensor is triggered and fed back to the lifting mechanism, and the lifting mechanism works.

8. The automatic screw locking device according to claim 1, Features: The conveying and positioning device further comprises a clamping mechanism, wherein the clamping mechanism is located between the predetermined position and the lifting mechanism; When the lifting mechanism works, the clamping mechanism clamps the part to be locked.

9. An automatic screw locking machine, Features: The automatic screw locking machine comprises an electrical cabinet base, a gantry frame, an equipment housing protective cover and any one of the automatic screw locking devices of claims 1 to 8; The gantry frame is arranged on the base of the electrical cabinet, the three-axis driving mechanism is arranged on the gantry frame, and the transmission positioning device is arranged on the base of the electrical cabinet; The equipment housing protective cover is arranged on the edge of the electrical cabinet base.

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