CN217019321U

CN217019321U - Screw lock attaches frock and robotic arm who contains it

Info

Publication number: CN217019321U
Application number: CN202220027642.0U
Authority: CN
Inventors: 王啸; 占俊峰; 王芹
Original assignee: Suzhou Tomas Robot Group Co ltd
Current assignee: Suzhou Tomas Robot Group Co ltd
Priority date: 2022-01-06
Filing date: 2022-01-06
Publication date: 2022-07-22
Anticipated expiration: 2032-01-06

Abstract

The utility model discloses a screw locking tool and a mechanical arm comprising the same, wherein the tool comprises a connecting plate and a fixing clamp arranged on the connecting plate, the fixing clamp comprises a lifting device, the lifting device comprises a first-stage lifting plate and a second-stage lifting plate, and the first-stage lifting plate is driven by a first lifting driving piece to move up and down along the connecting plate. The second grade lifter plate reciprocates along the one-level lifter plate under the effect of the second lifting driving piece, and the second lifting driving piece is fixed on the one-level lifter plate and can move synchronously with the one-level lifter plate. Fixing device, fixing device fix on the second grade lifter plate, and fixing device is used for fixed electricity to criticize, and electricity is criticized and fixing device can dismantle the connection. Can carry out accurate removal to the electricity wholesale, improve the lock silk precision.

Description

Screw lock attaches frock and robotic arm who contains it

Technical Field

The utility model relates to the field of robot workstations, in particular to a screw locking tool and a mechanical arm comprising the same.

Background

In the assembly process of mechanical, electrical and electrical products, screw locking operation is often required on a substrate. The traditional mode is to use a manual screwdriver for locking screws, however, the inefficient manual operation mode cannot meet the requirements of modern mass production and mechanical automation, and therefore, screw machines are developed. In order to enlarge the working range of the screw locking machine, a plurality of screw locking machines can be combined with a multi-shaft mechanical arm, the working range of the mechanical arm is large, and the requirements of material taking, blanking and screw locking at different positions of different working tables can be met. The screw machine is heavier, and the mechanical arm needs to accurately push the screw machine towards a workpiece after reaching a working position. And the screw machine often needs to be maintained or changed, and the quick replacement of the screw machine can also greatly improve the working efficiency.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model aims to provide a screw locking tool which can accurately move a screwdriver and improve the screw locking precision.

In order to achieve the above purposes, the utility model adopts the technical scheme that: a screw locking tool comprises a connecting plate and a fixing clamp arranged on the connecting plate, wherein the fixing clamp comprises

The lifting device comprises a primary lifting plate and a secondary lifting plate, wherein the primary lifting plate is driven by a first lifting driving piece to move up and down along the connecting plate; the second lifting plate moves up and down along the first lifting plate under the action of the first lifting driving piece, and the second lifting driving piece is fixed on the first lifting plate and can move synchronously with the first lifting plate;

and the fixing device is fixed on the second-stage lifting plate and used for fixing the electric screwdriver, and the electric screwdriver is detachably connected with the fixing device.

The utility model has the beneficial effects that: on the one hand, elevating gear carries out the two-stage drive through first lift driving piece and second lift driving piece, is fixed with the second grade lifter plate that the electricity was criticized and can highly carry out accurate location, improves the lock silk precision. On the other hand, the screwdriver and the fixing device can be detachably connected, so that the screwdriver is convenient to replace and maintain.

Further, the fixing device comprises a fixing seat, two clamping plates and a quick clamp assembly, wherein the fixing seat is fixed on the second-level lifting plate, one ends of the two clamping plates are hinged to the fixing seat respectively, the other ends of the two clamping plates are fixed through the quick clamp assembly, and a fixing groove for fixing the electric screwdriver is defined between the two clamping plates and the fixing seat. When two splint keep away from each other and open, put into the electricity wholesale, when splint pass through the active grab subassembly fixed, press from both sides tight electricity wholesale. The hinged clamping plate is matched with the quick clamp assembly, so that the screwdriver can be quickly fixed.

Further say, the active grab subassembly is including fixing one first pincers seat on the splint, be provided with the pothook on the first pincers seat, another be provided with the second pincers seat on the splint, it has the handle to articulate on the second pincers seat, it has the locking lever that can block into the pothook to articulate on the handle. The handle is pressed down, and the pothook is gone into to the locking lever card, and is fixed with two splint, presss from both sides tight electricity and criticizes, stirs the handle upwards, and the locking lever follows the pothook roll-off, and two splint can swing and keep away from, loosen the electricity and criticize, make things convenient for the electricity to criticize and take off. The structure of quick clamp subassembly can two splint of quick fixation, convenient and fast.

Further say, the end that the fixing base is close to splint is seted up and is criticized the arc breach that the outer wall matches with the electricity, two all set up the arc wall that the outer wall matches with the electricity on the opposite face of splint. The electric screwdriver enters from the arc-shaped notch and abuts against the arc-shaped notch, and then when the two clamping plates are fixed, the electric screwdriver is fixed.

Further say, the locking lever includes two parallel arrangement's body of rod portion, the one end that the handle was kept away from to the body of rod portion is connected with the joint portion of perpendicular body of rod portion jointly, joint portion matches with the pothook, the other end of body of rod portion is connected with jointly and wears to establish the articulated portion in the handle, articulated portion and handle rotate to be connected. The lock rod is in a square structure and is integrally formed, so that the lock rod is conveniently matched with the clamping hook.

Furthermore, the first driving part is a first air cylinder, a cylinder body of the first air cylinder is fixed on the first-stage lifting plate, and a telescopic shaft of the first air cylinder is fixedly connected with the connecting plate; the second driving piece is driven by a second cylinder, the cylinder body of the second cylinder is fixed on the first-stage lifting plate, and the telescopic shaft of the second cylinder is connected with the second-stage lifting plate. The first cylinder and the second cylinder are simple in structure and can directly drive the first-stage lifting plate and the second-stage lifting plate to lift.

Further say, the equal threaded connection of telescopic shaft of first cylinder and second cylinder has the joint, connect including connecting portion and the butt portion that is located the connecting portion lower extreme, butt portion and connecting portion form the ladder structure, all set up the spacing groove that matches with the ladder structure shape on one-level lifter plate and the second grade lifter plate, connecting portion upwards pass the spacing groove and are connected with the telescopic shaft of first cylinder or second cylinder. The joint is matched with the limiting groove, the joint can be directly inserted into the limiting groove from the side wall of the first-level lifting plate or the second-level lifting plate, and the abutting part can push the first-level lifting plate or the second-level lifting plate to move.

Further, one side, close to the first-stage lifting plate, of the connecting plate is provided with first sliding rails for the sliding of the first-stage lifting plate, and the first sliding rails are symmetrically arranged on two sides of the first cylinder; one side of the first-level lifting plate, which is close to the second-level lifting plate, is provided with a second sliding rail for the second-level lifting plate to slide, and the second sliding rails are symmetrically arranged on two sides of the second cylinder. The setting of first slide rail and second slide rail has improved the mobility stability of one-level lifter plate and second grade lifter plate.

Further, an electric screwdriver head positioned at the lower end of the second-level lifting plate is fixed on the first-level lifting plate.

The utility model further provides a mechanical arm which can accurately move the screwdriver, and the precision of locking the screwdriver is improved.

In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides a mechanical arm, includes the manipulator body, the end of manipulator body is fixed with the fixed plate, be provided with at least one screw lock on the fixed plate and attach the frock, the screw lock attaches the frock and attaches the frock for above-mentioned screw lock.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is a side view of one embodiment of the present invention;

FIG. 3 is a cross-sectional view of one embodiment of the present invention;

fig. 4 is a schematic perspective view of a lifting device according to an embodiment of the present invention;

FIG. 5 is a schematic perspective view of a fixing device according to an embodiment of the present invention;

fig. 6 is a schematic perspective view of an embodiment of the present invention.

In the figure:

1. a connecting plate; 11. a first slide rail; 2. a lifting device; 21. a first-level lifting plate; 211. a second slide rail; 22. a secondary lifting plate; 221. a limiting groove; 23. a first cylinder; 24. a second cylinder; 25. a joint; 3. a fixing device; 31. a fixed seat; 32. a splint; 33. a quick clamp assembly; 331. a first caliper mount; 332. a hook; 333. a second caliper seat; 334. a handle; 335. a lock lever; 34. a fixing groove; 4. electric screwdriver; 5. an electric screwdriver bit; 6. a manipulator body; 61. and (7) fixing the plate.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the present invention more comprehensible to those skilled in the art, and will thus provide a clear and concise definition of the scope of the present invention.

Referring to the attached drawing 1, the screw locking tool comprises a connecting plate 1 and a fixing clamp arranged on the connecting plate 1, the fixing clamp comprises a lifting device 2 and a fixing device 3, the lifting device 2 is arranged on the connecting plate 1 and pushes the fixing device 3 to lift, and the fixing device 3 is used for placing an electric screwdriver 4. The screwdriver 4 is a power tool for tightening and loosening screw caps.

Referring to fig. 2 and 3, the lifting device 2 includes a primary lifting plate 21 and a secondary lifting plate 22, wherein the primary lifting plate 21 is moved up and down along the connecting plate 1 by a first lifting driving member. The second lifting plate 22 moves up and down along the first lifting plate 21 under the driving of the second lifting driving piece, and the second lifting driving piece is fixed on the first lifting plate 21 and synchronously lifted up and down with the first lifting plate 21 and can drive the second lifting plate 22 to move up and down. Elevating gear 2 carries out the two-stage drive through first lift driving piece and second lift driving piece, is fixed with second grade lifter plate 22 that the electricity criticized 4 can carry out accurate location in the height, improves the lock silk precision. On one hand, the first driving part and the second driving part can be linked to move the electric screwdriver 4 downwards to the processing position, and on the other hand, when the electric screwdriver 4 is used for punching, the electric screwdriver 4 can be pushed to move downwards in a precise and accurate mode in the rotating process of the electric screwdriver 4.

In one embodiment, the first lifting driving member is a first cylinder 23, a cylinder body of the first cylinder 23 is fixed on the first-stage lifting plate 21, and a telescopic shaft of the first cylinder 23 is fixedly connected with the connecting plate 1. The second lifting driving piece is a second air cylinder 24, the cylinder body of the second air cylinder 24 is fixed on the first-stage lifting plate 21, and the telescopic shaft of the second air cylinder 24 is connected with the second-stage lifting plate 22.

Referring to fig. 4, the telescopic shafts of the first cylinder 23 and the second cylinder 24 are each threadedly connected with a joint 25, and the joint 25 includes a connecting portion and an abutting portion at a lower end of the connecting portion, and the abutting portion and the connecting portion form a stepped structure. The connecting part is in threaded connection with the telescopic shaft of the first cylinder 23/the second cylinder 24, and the abutting part and the connecting part are of one of a cylindrical structure, a cuboid structure and a triangular prism structure. Limiting grooves 221 matched with the shapes of the stepped structures are formed in the first-stage lifting plate 21 and the second-stage lifting plate 22, and the limiting grooves 221 penetrate through the first-stage lifting plate 21/the second-stage lifting plate 22 in the direction perpendicular to the moving direction of the first-stage lifting plate 21/the second-stage lifting plate 22. The connecting part passes through the limiting groove 221 upwards and is connected with the telescopic shaft of the first air cylinder 23 or the second air cylinder 24. The joint 25 is matched with the limit groove 221, the joint 25 can be directly inserted into the limit groove 221 from the side wall of the first-stage lifting plate 21 or the second-stage lifting plate 22, and the abutting part can push the first-stage lifting plate 21 or the second-stage lifting plate 22 to move.

In an embodiment, the first lifting driving member may be a first lead screw lifting assembly, the first lead screw lifting assembly is fixed on the connecting plate 1, and the output end is fixedly connected with the first-stage lifting plate 21. The second lifting driving piece is a second screw rod lifting assembly, the second lifting screw rod assembly is fixed on the first-level lifting plate 21, and the output shaft is fixedly connected with the second-level lifting plate 22. The first screw rod lifting assembly and the second lifting assembly are identical in structure and respectively comprise a screw rod and a motor for driving the screw rod to rotate, and the screw rod is in threaded connection with a nut seat fixedly connected with the first-stage lifting plate 21/the second-stage lifting plate 22.

In order to improve the stability that one-level lifter plate 21 and second grade lifter plate 22 reciprocated, one side that connecting plate 1 is close to one-level lifter plate 21 is provided with the gliding first slide rail 11 of confession one-level lifter plate 21, and first slide rail 11 symmetry sets up in first cylinder 23 both sides, is fixed with on the one-level lifter plate 21 to follow the gliding first slider of first slide rail 11. One side that one-level lifter plate 21 is close to second lifter plate 22 is provided with the gliding second slide rail 211 of confession second lifter plate 22, and second slide rail 211 symmetry sets up in second cylinder 24 both sides, is fixed with the gliding second slider of second slide rail 211 on the second lifter plate 22. The arrangement of the first slide rail 11 and the second slide rail 211 improves the moving stability of the first-level lifting plate 21 and the second-level lifting plate 22.

Referring to fig. 1, the fixing device 3 is fixed on the second-stage lifting plate 22, the fixing device 3 is used for fixing the electric screwdriver 4, and the electric screwdriver 4 is detachably connected with the fixing device 3. The electric screwdriver 4 and the fixing device 3 are detachably connected, so that the electric screwdriver 4 is convenient to replace and maintain.

Referring to fig. 5, the fixing device 3 includes a fixing base 31, two clamping plates 32 and a quick clamp assembly 33. Wherein fixing base 31 is fixed on second grade lifter plate 22, and two splint 32's one end is articulated with fixing base 31 respectively, and the other end is the free end, and accessible quick-operation clamp subassembly 33 is fixed. The two clamping plates 32 and the fixed seat 31 define a fixing groove 34 for fixing the electric screwdriver 4 therebetween. The end of the fixed seat 31 close to the clamping plate 32 is provided with an arc notch matched with the outer wall of the electric screwdriver 4, and the opposite surfaces of the two clamping plates 32 are provided with arc grooves matched with the outer wall of the electric screwdriver 4. The electric screwdriver 4 enters from the arc-shaped gap and abuts against the arc-shaped gap, and then when the two clamping plates 32 are fixed, the electric screwdriver 4 is fixed. When the two clamping plates 32 are opened away from each other, the electric screwdriver 4 is put in, and when the clamping plates 32 are fixed through the quick clamp assembly 33, the electric screwdriver 4 is clamped. The hinged clamp plate 32 and the quick clamp assembly 33 cooperate to quickly secure the electric screwdriver 4.

The quick clamp assembly 33 includes a first base 331 fixed to one of the clamping plates 32, and the first base 331 is provided with a hook 332, and the hook 332 is L-shaped. The other clamping plate 32 is provided with a second clamp seat 333, the second clamp seat 333 is hinged with a handle 334, and the handle 334 is hinged with a lock rod 335 which can be clamped into the hook 332. The handle 334 is pressed downwards, the lock rod 335 is clamped into the clamping hooks 332, the two clamping plates 32 are fixed, the electric screwdriver 4 is clamped, the handle 334 is pulled upwards, the lock rod 335 slides out of the clamping hooks 332, the two clamping plates 32 can swing away, the electric screwdriver 4 is loosened, and the electric screwdriver 4 can be conveniently taken down. The structure of the quick clamp assembly 33 can quickly fix the two clamping plates 32, and is convenient and quick.

The lock rod 335 is in a square structure and is integrally formed, so that the lock rod can be conveniently matched with the hook 332. The lock rod 335 includes two rod portions arranged in parallel, one end of the rod portion far away from the handle 334 is connected with a clamping portion of the vertical rod portion together, the clamping portion is matched with the clamping hook 332, the other end of the rod portion is connected with a hinge portion penetrating through the handle 334 together, and the hinge portion is connected with the handle 334 in a rotating manner.

In order to facilitate the pressing of the handle 334, a pressing portion is disposed at one end of the handle 334 away from the second caliper seat 333, and anti-slip threads are disposed on the pressing portion. The hinge point of the lock lever 335 and the handle 334 is located between the hinge points of the pressing portion, the lock lever 335 and the second caliper seat 333.

The primary lifting plate 21 is also fixed with an electric screwdriver head 5 positioned at the lower end of the secondary lifting plate 22. The electric screwdriver head 5 is of a three-way structure and comprises a vertical channel and a feeding channel communicated with the vertical channel, the feeding channel is connected with an external screw feeding mechanism (such as a vibrating disc), screws are directly sucked into the feeding channel in an air suction mode and enter the vertical channel through the feeding channel, the end part of the electric screwdriver 4 extends into the vertical channel, the screws can be locked, and automatic operation of locking the screws is realized

Referring to fig. 6, in an embodiment, a robot arm is provided, and the robot arm includes a robot body 6, a fixing plate 61 is fixed at a distal end of the robot body 6, and at least one screw locking tool is disposed on the fixing plate 61, and the screw locking tool is the screw locking tool.

The above embodiments are provided only for illustrating the technical idea and features of the present invention, and the purpose of the present invention is to provide those skilled in the art with understanding and implementing the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.

Claims

1. The utility model provides a screw lock attaches frock which characterized in that: comprises a connecting plate and a fixing clamp arranged on the connecting plate, wherein the fixing clamp comprises

The lifting device comprises a primary lifting plate and a secondary lifting plate, wherein the primary lifting plate is driven by a first lifting driving piece to move up and down along the connecting plate; the second lifting plate moves up and down along the first lifting plate under the action of a second lifting driving piece, and the second lifting driving piece is fixed on the first lifting plate and can move synchronously with the first lifting plate;

2. The screw locking frock of claim 1, characterized in that: the fixing device comprises a fixing seat, two clamping plates and a quick clamp assembly, wherein the fixing seat is fixed on the second-level lifting plate, one ends of the clamping plates are hinged to the fixing seat respectively, the other ends of the clamping plates are fixed through the quick clamp assembly, and a fixing groove for fixing the screwdriver is formed between the clamping plates and the fixing seat in a limiting mode.

3. The screw locking frock of claim 2, characterized in that: the rapid clamp assembly comprises a first clamp seat fixed on the clamping plate, a clamping hook is arranged on the first clamp seat, a second clamp seat is arranged on the clamping plate, a handle is hinged on the second clamp seat, and a locking rod capable of being clamped into the clamping hook is hinged on the handle.

4. The screw locking frock of claim 2, characterized in that: the end of the fixing seat close to the clamping plate is provided with an arc-shaped notch matched with the electric screwdriver outer wall, and the opposite surface of the clamping plate is provided with an arc-shaped groove matched with the electric screwdriver outer wall.

5. The screw locking frock of claim 3, characterized in that: the locking lever includes two parallel arrangement's the body portion of rod, the one end that the handle was kept away from to the body portion of rod is connected with the joint portion of perpendicular body portion jointly, joint portion matches with the pothook, the other end of body portion of rod is connected with the articulated portion of wearing to establish in the handle jointly, articulated portion and handle rotate to be connected.

6. The screw locking frock of claim 1, characterized in that: the first lifting driving piece is a first air cylinder, a cylinder body of the first air cylinder is fixed on the first-stage lifting plate, and a telescopic shaft of the first air cylinder is fixedly connected with the connecting plate; the second lifting driving piece is a second air cylinder, the cylinder body of the second air cylinder is fixed on the first-stage lifting plate, and the telescopic shaft of the second air cylinder is connected with the second-stage lifting plate.

7. The screw locking frock of claim 6, characterized in that: the equal threaded connection of telescopic shaft of first cylinder and second cylinder has the joint, connect including connecting portion and the butt portion that is located connecting portion lower extreme, butt portion and connecting portion form the stair structure, all set up the spacing groove that matches with the stair structure shape on one-level lifter plate and the second grade lifter plate, connecting portion upwards pass the spacing groove and are connected with the telescopic shaft of first cylinder or second cylinder.

8. The screw locking frock of claim 1, characterized in that: one side of the connecting plate, which is close to the first-stage lifting plate, is provided with first sliding rails for the first-stage lifting plate to slide, and the first sliding rails are symmetrically arranged on two sides of the first cylinder; one side of the first-level lifting plate, which is close to the second-level lifting plate, is provided with a second sliding rail for the second-level lifting plate to slide, and the second sliding rails are symmetrically arranged on two sides of the second cylinder.

9. The screw lock attaches frock of any one of claims 1-8, its characterized in that: and the first-stage lifting plate is also fixedly provided with an electric screwdriver head positioned at the lower end of the second-stage lifting plate.

10. A robot arm, characterized in that: the mechanical arm comprises a mechanical arm body, wherein a fixing plate is fixed at the tail end of the mechanical arm body, at least one screw locking tool is arranged on the fixing plate, and the screw locking tool is the screw locking tool according to any one of claims 1-9.