CN218964626U - Automatic screw locking machine - Google Patents
Automatic screw locking machine Download PDFInfo
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- CN218964626U CN218964626U CN202222423142.1U CN202222423142U CN218964626U CN 218964626 U CN218964626 U CN 218964626U CN 202222423142 U CN202222423142 U CN 202222423142U CN 218964626 U CN218964626 U CN 218964626U
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Abstract
The utility model discloses an automatic screw locking machine which comprises a screw feeding mechanism, a screw locking mechanism and an electric control mechanism, wherein the screw locking mechanism is arranged on a mechanical arm, and a screwdriver head is arranged on the screw locking mechanism; the screw feeding mechanism is provided with a screw clamping mechanism which comprises a left clamping arm and a right clamping arm, wherein the two clamping arms are positioned on two sides of a screw which is conveyed to the forefront end, and the two clamping arms are respectively connected with a clamping cylinder so that the clamping arms can move relatively to clamp the screw. According to the utility model, the screw feeding mechanism is provided with the screw clamping mechanism to clamp the screw fed to the outer side, and then the screw feeding mechanism is matched with the screwdriver head with the magnet to perform the screw sucking operation. The screw driver can prevent the problem of inaccurate screw alignment caused by the fact that the screw driver is driven to rotate when the screw driver rotates, so that the alignment speed of the screw and the inner hole of the screw driver can be increased, the speed of sucking the screw is accelerated, the screw driver can prevent the screw from being sucked in a virtual manner, and the screw driver can not be damaged when the screw is locked due to unstable suction.
Description
Technical Field
The utility model relates to the technical field of mechanical equipment, in particular to equipment for automatically installing screws.
Background
Screws are widely used in many products, such as horns, and conventionally, manual screws are generally used for locking the products. Because of low manual operation efficiency, non-uniform screw tightening force and high labor intensity, some automatic screw locking devices are invented, and generally comprise a screw feeding mechanism, a screw locking mechanism for loading a screwdriver head, an electric control mechanism and the like, wherein the screwdriver head is arranged on the screw locking mechanism to realize rotatability, and the screw locking mechanism is arranged on a movable mechanical arm or a multi-axis robot. The screw is placed in the screw feeding mechanism, the screw feeding mechanism is used for feeding the screw to the material taking position according to a specific gesture sequence, and then the screwdriver head is used for moving to the material taking position to absorb the screw. In order to conveniently absorb the screw, a screwdriver head with a magnet inside is generally used, the screw is absorbed through the magnetic force of the magnet and then is sent to a workpiece to be automatically screwed and locked, so that the working efficiency is greatly improved, and the screwing force is kept uniform. However, the problem is that the outer hexagonal screw is widely used in many products at present, the screw can be sucked after being aligned with the inner hexagonal hole of the screwdriver head when sucking, and the screwdriver head rotates to realize the alignment with the outer hexagonal screw, but due to the friction effect, the screwdriver head can often drive the screw to rotate when rotating, so that the alignment efficiency is low, and the working efficiency of installing the screw is severely restricted. In addition, sometimes the screw is only partially embedded into the inner hexagonal hole of the screwdriver head, namely, the screw is sucked in a virtual manner, and in this case, the outer hexagonal structure of the screw is easily damaged when the screw is screwed, so that the screw is damaged or even scrapped.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides the automatic screw locking machine which has more reasonable structural design, higher working efficiency and quicker and more accurate screw suction.
In order to solve the technical problems, the utility model adopts the following technical scheme: an automatic screw locking machine comprises a screw feeding mechanism, a screw locking mechanism and an electric control mechanism, wherein the screw locking mechanism is arranged on a mechanical arm (such as a four-axis robot and the like) to form a movable structure; install the screwdriver head that is used for absorbing the screw on the lock screw mechanism, absorb the screw of being sent out by screw feeding mechanism, its characterized in that by screwdriver head: the screw feeding mechanism is provided with a screw clamping mechanism which comprises a left clamping arm and a right clamping arm, wherein the two clamping arms are positioned at two sides of a screw which is conveyed to the forefront end, and the two clamping arms are respectively connected with a clamping cylinder so that the clamping arms can move relatively to form a structure capable of clamping the forefront screw.
Further, the two clamping arms are symmetrically arranged on the two mounting seats, the mounting seats are connected with push-pull arms, the push-pull arms are connected with push-pull seats, the push-pull seats are connected with clamping cylinders, and the clamping cylinders are arranged on the fixing seats of the screw feeding mechanism; the push-pull seat is pushed by the clamping cylinder, the push-pull arm is pushed by the push-pull seat, the installation seat is pushed by the push-pull arm, and the installation seat drives the clamping arm to clamp the forefront screw.
Further, a rotatable screw separating seat is arranged at the position aligned with the screw on the screw feeding mechanism, and four screw grooves are symmetrically arranged at the edge positions of the screw separating seat; the clamping arms are arranged at positions close to the screw separating seat, and when any screw on the screw separating seat rotates to be aligned with a gap between the clamping arms, the clamping cylinder starts clamping operation on the screw. Of course, the scheme of the screw separating seat can be directly applied to the prior art.
Further, a fixed groove is arranged on the fixed pipe of the screw locking mechanism, and a ball hole is arranged in the fixed groove; the quick-mounting ring is clamped into the fixing groove, and the balls are mounted in the ball holes, so that the structure of quick-changing screwdriver head of the screw locking mechanism is formed.
Further, a notch is formed in the side wall of the quick-mounting ring to enable the quick-mounting ring to have an elastic structure, a positioning hole is formed in the position, aligned with the ball, of the quick-mounting ring, and the ball is embedded into a part of the positioning hole.
Further, a clamping groove is formed in the position, opposite to the ball, of the outer side wall of the upper portion of the batch head, and after the batch head is installed in the fixing pipe, the ball is clamped into the clamping groove to fix the batch head, so that the batch head can be replaced conveniently according to the requirements.
Further, a magnet is arranged in a hole in the lower part of the screwdriver head for sucking the screw, when the screw separating seat rotates the last screw to the outermost end, the locking cylinder is started to push the two clamping arms towards the middle, so that the clamping arms clamp the screw rod part of the screw, and the screw is ensured not to rotate. At the moment, the screwdriver head is moved to the position above the clamped screw through the mechanical arm, and the screw locking mechanism controls the screwdriver head to descend to be close to the screw and simultaneously rotates the screwdriver head. When the screwdriver head rotates to the position that the inner hexagonal hole of the screwdriver head is aligned with the outer hexagonal hole of the screw, the screw is attracted by the magnet and enters the inner hexagonal hole of the screwdriver head, and then is sent to a workpiece by the mechanical arm to perform screw locking operation.
Preferably, the hole of the screwdriver head for sucking the screw is an inner hexagonal hole and can be specially used for locking an outer hexagonal screw. Of course, alternative heads of other shapes may be used, such as triangular-shaped inner holes, cross-shaped heads, and the like.
According to the utility model, the screw feeding mechanism is provided with the screw clamping mechanism to clamp the screw fed to the outer side, and then the screw feeding mechanism is matched with the screwdriver head with the magnet to perform the screw sucking operation. The screw driver can prevent the problem of inaccurate alignment of the screw caused by the fact that the screw driver is driven to rotate when the screw driver rotates, so that the alignment speed of the screw and the inner hole of the screw driver can be increased, the speed of sucking the screw can be accelerated, the screw driver can prevent the screw driver from being sucked in a virtual manner, and the screw driver can be prevented from being damaged when the screw driver is locked due to unstable suction, and the screw driver is particularly suitable for the operation of locking the outer hexagon screw.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a block diagram of a screw feed mechanism;
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is a block diagram of a screw locking mechanism;
fig. 5 is a partially exploded view of the screw locking mechanism.
In the figure, 1 is a screw feeding mechanism, 11 is a screw feeding box, 12 is a screw separating seat, 121 is a screw groove, 13 is a fixed seat, 14 is a clamping cylinder, 15 is a clamping arm, 16 is a mounting seat, 17 is a push-pull arm, 18 is a push-pull seat, 2 is a screw locking mechanism, 21 is a fixed pipe, 22 is a fixed groove, 23 is a ball hole, 24 is a quick-mounting ring, 25 is a positioning hole, 26 is a ball, 3 is a batch head, 31 is a clamping groove, 4 is a replacement batch head, 5 is a screw, 6 is a mechanical arm, 7 is an electric control mechanism, and 8 is a workpiece.
Detailed Description
In this embodiment, referring to fig. 1 to 5, the automatic screw locking machine includes a screw feeding mechanism 1, a screw locking mechanism 2 and an electric control mechanism 7, where the screw locking mechanism 2 is mounted on a mechanical arm 6 to form a movable structure; the screw locking mechanism 2 is provided with a screwdriver head 3 for sucking the screw 5, and the screwdriver head 3 sucks the screw 5 sent out by the screw feeding mechanism 1; the screw feeding mechanism 1 is provided with a screw clamping mechanism which comprises a left clamping arm 15 and a right clamping arm 15, wherein the two clamping arms 15 are positioned at two sides of the screw 5 sent to the forefront end, and the two clamping arms 15 are respectively connected with a clamping cylinder 14 so that the clamping arms 15 can move relatively to clamp the forefront screw 5.
The two clamping arms 15 are symmetrically arranged on the two mounting seats 16, the mounting seats 16 are connected with push-pull arms 17, the push-pull arms 17 are connected with push-pull seats 18, the push-pull seats 18 are connected with clamping cylinders 14, and the clamping cylinders 14 are arranged on the fixed seat 13 of the screw feeding mechanism 1; the push-pull seat 18 is pushed by the clamping cylinder 14, the push-pull arm 17 is pushed by the push-pull seat 18, the mounting seat 16 is pushed by the push-pull arm 17, and the mounting seat 16 drives the clamping arm 15 to clamp the forefront screw 5.
A rotatable screw separating seat 12 is arranged on the screw feeding mechanism 1 in a position aligned with the screw 5, and four screw grooves 121 are symmetrically arranged at the edge positions of the screw separating seat 12; the clamping arm 15 is arranged at a position close to the screw separating seat 12, screws are placed in the screw feeding box 11 of the screw feeding mechanism 1 in advance, and the screws 5 are discharged by the screw feeding mechanism 1 in order and then fed out, and enter the screw grooves 121 one by one. When any screw 5 (i.e., the outermost side) to which the screw holder 12 is rotated is aligned with the gap between the clamping arms 15, the clamping cylinder 14 starts the clamping operation of that screw 5. Of course, the solution of the screw separating seat 12 can be directly applied to the prior art.
A fixed groove 22 is arranged on a fixed pipe 21 of the screw locking mechanism 2, and a ball hole 23 is arranged in the fixed groove 22; the quick-mounting ring 24 is clamped in the fixing groove 22, and the balls 26 are arranged in the ball holes 23, so that the screw locking mechanism 2 is provided with the structure for quickly replacing the screwdriver head 3.
The side wall of the quick-mounting ring 24 is provided with a notch to enable the quick-mounting ring 24 to form an elastic structure, a positioning hole 25 is further formed in the quick-mounting ring 24 and aligned with the ball 26, and the ball 26 is embedded into a part of the positioning hole 25 to realize positioning and prevent random rolling.
The clamping groove 31 is formed in the position, opposite to the ball 26, on the outer side wall of the upper portion of the batch head 3, and after the batch head 3 is installed in the fixing pipe 21, the ball 26 is clamped into the clamping groove 31 to fix the batch head 3, so that the batch head 4 with different shapes can be replaced conveniently according to requirements.
A magnet (not shown) is arranged in a hole in the lower part of the screwdriver head 3 for sucking the screw 5, when the screw separating seat 12 rotates the screw 5 to the outermost end, the locking cylinder 14 is started to push the two clamping arms 15 towards the middle, so that the clamping arms 15 clamp the screw rod part of the screw 5, and the screw 5 is ensured not to rotate. At this time, the screwdriver bit 3 is moved above the clamped screw 5 by the mechanical arm 6, and the screw locking mechanism 2 controls the screwdriver bit 3 to descend to be close to the screw 5, and simultaneously rotates the screwdriver bit 3. When the screwdriver bit 3 is rotated to align the inner hexagonal hole of the screwdriver bit with the outer hexagonal hole of the screw 5, the screw 5 is attracted by the magnet and enters the inner hexagonal hole of the screwdriver bit 3, and then the screwdriver bit is sent to the workpiece 8 by the mechanical arm 6 for screwing operation.
The hole of the screwdriver head 3 for sucking the screw 5 is an inner hexagonal hole and can be specially used for locking an outer hexagonal screw. Of course, alternative heads 4 of other shapes may be used, such as triangular inner holes, cross-shaped heads, etc.
The foregoing detailed description of the utility model has been presented for purposes of illustration and description, but is not intended to limit the scope of the utility model, i.e., the utility model is not limited to the details shown and described.
Claims (8)
1. An automatic screw locking machine comprises a screw feeding mechanism, a screw locking mechanism and an electric control mechanism, wherein the screw locking mechanism is arranged on a mechanical arm to form a movable structure; install the screwdriver head that is used for absorbing the screw on the lock screw mechanism, absorb the screw of being sent out by screw feeding mechanism, its characterized in that by screwdriver head: the screw feeding mechanism is provided with a screw clamping mechanism which comprises a left clamping arm and a right clamping arm, wherein the two clamping arms are positioned at two sides of a screw which is conveyed to the forefront end, and the two clamping arms are respectively connected with a clamping cylinder so that the clamping arms can move relatively to form a structure capable of clamping the forefront screw.
2. The automatic screw locking machine according to claim 1, wherein: the two clamping arms are symmetrically arranged on the two mounting seats, the mounting seats are connected with push-pull arms, the push-pull arms are connected with push-pull seats, the push-pull seats are connected with clamping cylinders, and the clamping cylinders are arranged on the fixing seats of the screw feeding mechanism; the push-pull seat is pushed by the clamping cylinder, the push-pull arm is pushed by the push-pull seat, the installation seat is pushed by the push-pull arm, and the installation seat drives the clamping arm to clamp the forefront screw.
3. The automatic screw locking machine according to claim 2, wherein: a rotatable screw separating seat is arranged at the position aligned with the screw on the screw feeding mechanism, and four screw grooves are symmetrically arranged at the edge positions of the screw separating seat; the clamping arm is arranged at a position close to the screw separating seat.
4. The automatic screw locking machine according to claim 1, wherein: a fixed groove is formed in a fixed pipe of the screw locking mechanism, and a ball hole is formed in the fixed groove; the quick-mounting ring is clamped into the fixing groove, and the balls are mounted in the ball holes, so that the structure of quick-changing screwdriver head of the screw locking mechanism is formed.
5. The automatic screw locking machine according to claim 4, wherein: the side wall of the quick-mounting ring is provided with a notch so that the quick-mounting ring has an elastic structure, a positioning hole is further formed in the position, aligned with the ball, of the quick-mounting ring, and the ball is embedded into a part of the positioning hole.
6. The automatic screw locking machine according to claim 4, wherein: the outer side wall of the upper part of the batch head is provided with a clamping groove at a position opposite to the ball, and after the batch head is arranged in the fixing pipe, the ball is clamped into the clamping groove to fix the batch head.
7. The automatic screw locking machine according to claim 1, wherein: a magnet is arranged in a hole used for sucking the screw at the lower part of the screwdriver head.
8. The automatic screw locking machine according to claim 7, wherein: the hole of the screwdriver head for sucking the screw is an inner hexagonal hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222423142.1U CN218964626U (en) | 2022-09-09 | 2022-09-09 | Automatic screw locking machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222423142.1U CN218964626U (en) | 2022-09-09 | 2022-09-09 | Automatic screw locking machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218964626U true CN218964626U (en) | 2023-05-05 |
Family
ID=86152099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222423142.1U Active CN218964626U (en) | 2022-09-09 | 2022-09-09 | Automatic screw locking machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218964626U (en) |
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2022
- 2022-09-09 CN CN202222423142.1U patent/CN218964626U/en active Active
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