CN215846801U - Nut locking auxiliary fixtures - Google Patents
Nut locking auxiliary fixtures Download PDFInfo
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- CN215846801U CN215846801U CN202122237429.0U CN202122237429U CN215846801U CN 215846801 U CN215846801 U CN 215846801U CN 202122237429 U CN202122237429 U CN 202122237429U CN 215846801 U CN215846801 U CN 215846801U
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- nut
- rod
- ejector pin
- positioning base
- nut locking
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Abstract
The utility model discloses a nut locking auxiliary tool which comprises a positioning base, a power mechanism and at least one ejector rod assembly, wherein the power mechanism is connected with the positioning base so as to drive the positioning base to move towards a direction close to or far away from a product needing to lock a nut; the ejector pin subassembly includes cavity and can not pass the ejector pin of nut, can pass the positive pole of leading of nut to and the elastic component that resets, and the ejector pin sets up on the location base along the moving direction of location base, but leads positive pole axial motion ground and wear to locate in the ejector pin, and leads positive pole and realize elastic expansion through the elastic component that resets, and the one end that makes to lead positive pole and be used for leading the nut can stretch out outside the ejector pin or income ejector pin. The nut locking device can automatically transport the nut in place and guide the nut, so that the phenomenon that the nut is turned over in the locking process to cause that a screw cannot be locked in is avoided.
Description
Technical Field
The utility model relates to a tool, in particular to a nut locking auxiliary tool.
Background
During assembly, the product often requires nuts, bolts (or bolts) to fixedly connect the separate components of the product together by the locking fit of the nuts and bolts. The traditional locking mode of nuts and screws is a manual locking mode, and the defects of low working efficiency, poor locking effect and the like exist. For this reason, the prior art has appeared an apparatus for automatically locking a screw and a nut, which can replace the manual work to automatically lock the screw and the nut together, thereby improving the assembly efficiency of the product. However, the following disadvantages exist with this automated screw and nut locking approach: the nut is easy to stand up in the jacking process, so that the screw cannot be locked in.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problems in the prior art, the utility model provides an auxiliary nut locking tool.
The technical scheme adopted by the utility model for solving the technical problems is as follows: a nut locking auxiliary tool comprises a positioning base, a power mechanism and at least one ejector rod assembly, wherein the power mechanism is connected with the positioning base so as to drive the positioning base to move towards a direction close to or far away from a product needing to lock a nut; the ejector pin subassembly includes cavity and can not pass the ejector pin of nut, can pass leading positive pole and the elastic component that resets of nut, and the ejector pin sets up on the location base along the moving direction of location base, but leads positive pole axial motion ground and wear to locate in the ejector pin, and leads positive pole and realize elastic expansion through the elastic component that resets, makes the one end that leads positive pole and be used for leading the nut can stretch out outside the ejector pin or take in the ejector pin.
The detector is arranged on the positioning base, or the detector is arranged on a mounting seat fixed on the positioning base; the detector sends out a signal when the guide rod is received in a designated position.
Furthermore, the detector is a photoelectric switch, the other end of the guide rod is provided with a detection rod, the detection rod extends out of the back face of the positioning base, the side wall of the detection rod is provided with a light transmission groove, and when the light transmission groove reaches a detection point of the photoelectric switch, the photoelectric switch sends a signal.
Furthermore, the ejector pin is provided with a first limiting part, the guide rod is provided with a second limiting part, and two ends of the reset elastic piece are respectively limited in the first limiting part and the second limiting part.
Further, the ejector rod comprises an inner rod and an outer rod, the inner rod and the outer rod are fixedly sleeved together, the guide rod penetrates through the inner rod, and the inner rod is provided with the first limiting part; the reset elastic piece is an extension spring and is sleeved outside the inner rod; the distance between the first limiting part and one end, used for guiding the nut, of the guide rod is smaller than the distance between the second limiting part and one end, used for guiding the nut, of the guide rod.
Furthermore, the inner rod comprises a first rod body and a second rod body, one end of the first rod body is located outside the outer rod, the second rod body is located inside the outer rod, and the first limiting portion is arranged on the second rod body.
Furthermore, the first limiting part is a step surface, and one end of the extension spring abuts against the step surface; the second limiting part is a necking part, and the other end of the extension spring is radially shrunk and sleeved on the necking part.
Furthermore, the power mechanism is an air cylinder, and a piston rod of the air cylinder is connected with the positioning base.
Furthermore, the positioning base is provided with a positioning structure for positioning the product.
Furthermore, the positioning structure is a positioning groove which can enable the product to be partially embedded.
Compared with the prior art, the utility model has the following beneficial effects:
1. the nut locking device comprises the positioning base, the power mechanism and the ejector rod assembly, and can automatically transport the nut in place and guide the nut, so that the phenomenon that the nut is turned over in the locking process to cause that a screw cannot be locked in is avoided.
2. The detector is arranged, so that the locking depth of the screw is detected by detecting the retraction stroke of the guide rod, and the phenomenon that the screw and the nut are not locked in place is avoided. In addition, compared with the mode of using torque force detection in the prior art, the detection mode of the utility model has high detection precision and can not generate false detection (the existing torque force detection mode can cause torque force to reach when the screw and the nut are in wrong teeth, but the actual screw and the nut are not locked in place).
3. The arrangement of the positioning structure enables the nut to be accurately delivered to the position of a product where the nut needs to be locked.
The utility model is further explained in detail with the accompanying drawings and the embodiments; however, the nut locking auxiliary tool of the present invention is not limited to the embodiment.
Drawings
FIG. 1 is a first perspective view of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a cross-sectional view of the present invention;
FIG. 4 is an enlarged schematic view of portion A of FIG. 3;
FIG. 5 is an enlarged schematic view of portion B of FIG. 3;
the device comprises a positioning base 1, a positioning base 2, a top rod 21, an outer rod 22, a first rod body 23, a second rod body 231, a step surface 3, a guide rod 31, a necking part 4, a tension spring 5, a photoelectric switch 6, a mounting seat 7, a cylinder 8, a detection rod 81, a light-transmitting groove 9, a jackscrew 10, a nut 20 and a screw.
Detailed Description
Referring to fig. 1 to 5, the nut locking auxiliary tool of the present invention includes a positioning base 1, a power mechanism and at least one ejector rod assembly, wherein the power mechanism is connected to the positioning base 1 to drive the positioning base 1 to move toward or away from a product requiring nut locking. The number of the jack assemblies is specifically two, but is not limited thereto. The ejector pin subassembly includes cavity and can not pass ejector pin 2 of nut, can pass leading positive pole 3 and the elastic component that resets of nut, and ejector pin 2 sets up on location base 1 along the direction of movement of location base 1, but leads positive pole 3 and wear to locate in ejector pin 2 with axial motion, and leads positive pole 3 and realize elastic expansion through the elastic component that resets, makes the one end that leads positive pole 3 to be used for leading the nut can stretch out the ejector pin 2 outward or in the income ejector pin 2. The moving direction of the positioning base 1 is specifically, but not limited to, the up-down direction.
In this embodiment, the present invention further includes a detector for detecting the retraction stroke of the guide rod 3, the detector is disposed on a mounting seat fixed to the positioning base 1; the detector sends out a signal when the guide rod 3 is received in a designated position. The detector is specifically a photoelectric switch 5, the other end of the guide rod 3 of the photoelectric switch 5 is provided with a detection rod 8, the detection rod 8 extends out of the back of the positioning base 1, the side wall of the detection rod 8 is provided with a light transmission groove 81, and when the light transmission groove 81 reaches a detection point of the photoelectric switch 5, the photoelectric switch 5 sends a signal. The detection rod 8 is a hollow rod body, and the other end of the guide rod 3 is inserted into the detection rod 8 and locked by a jackscrew 9. The width of the light-transmitting groove 81 is about 0.3 mm. In other embodiments, the detector is a displacement sensor or the like.
In this embodiment, the top rod 2 is provided with a first limiting portion, the guide rod is provided with a second limiting portion, and two ends of the reset elastic member are respectively limited by the first limiting portion and the second limiting portion. The ejector rod 2 comprises an inner rod and an outer rod 21, the inner rod and the outer rod 21 are fixedly sleeved together, the outer rod 21 is fixed on the positioning base 1, the guide rod 3 penetrates through the inner rod, and the inner rod is provided with the first limiting part. The reset elastic piece is an extension spring 4 and is sleeved outside the inner rod; the distance between the first limiting part and one end, used for guiding the nut, of the guide rod 3 is smaller than the distance between the second limiting part and one end, used for guiding the nut, of the guide rod 3. The first limiting part is specifically a step surface 231, and one end of the extension spring 4 abuts against the step surface 231; the second limiting part is a necking part 31, and the other end of the extension spring 4 is radially shrunk and sleeved on the necking part 31. In other embodiments, the return elastic element is a compression spring, the distance between the first limiting portion and the end of the guide rod for guiding the nut is greater than the distance between the second limiting portion and the end of the guide rod for guiding the nut, the first limiting portion and the second limiting portion preferably have oppositely arranged step surfaces, and two ends of the compression spring respectively abut against the two step surfaces.
In this embodiment, for the convenience of installation, the inner rod includes a first rod 22 and a second rod 22 that are distributed along the axial direction of the inner rod, one end of the first rod 22 is located outside the outer rod 21, and the second rod 22 is located inside the outer rod 21 and is provided with the second limiting portion (i.e., the step surface 231). In other embodiments, the inner rod is an integrally formed part.
In this embodiment, the power mechanism is an air cylinder 7, and a piston rod of the air cylinder 7 is connected to the positioning base 1. The cylinder 7 is embodied as a double rod cylinder, but is not limited thereto. The cylinder 7 may be fixed to a fixing base (not shown). In other embodiments, the power mechanism is a hydraulic cylinder or an electric push rod.
In this embodiment, the positioning base 1 is provided with a positioning structure for positioning the product, and the positioning structure is specifically, but not limited to, a positioning groove (not shown in the drawings) for partially embedding the product.
When the nut locking auxiliary tool works, firstly, the nut 10 is sleeved at one end of the guide rod 3, which is exposed, then, the air cylinder 7 is started, the air cylinder 7 drives the positioning base 1 and each ejector rod assembly on the positioning base to move upwards to face the direction of a product, when the product is locally embedded into the positioning groove of the positioning base 1, the positioning base 1 moves in place, and at the moment, the nut 10 sleeved outside the guide rod 3 is accurately conveyed to the position of the product, which needs to lock the nut; then, the automation equipment starts to lock the screw 20, the threaded rod of the screw 20 penetrates through the corresponding part of the product and is inserted into the nut 10 for locking, in the locking process, the tail end of the screw 20 contacts the guide rod 3 and causes the guide rod 3 to descend, so that one end, sleeved with the nut 10, of the rod 3 is gradually retracted into the ejector rod 2, the extension spring 4 is extended along with the descending of the guide rod 3, the detection rod 8 and the light transmission groove 81 on the detection rod also descend, when the screw 20 reaches the preset locking depth, the light transmission groove 81 just reaches the detection point of the photoelectric switch 5, and the photoelectric switch 5 sends a signal to a controller of the automation equipment to enable the controller to judge the state that the nut 10 is locked in place. After the nut 10 is locked, the air cylinder 7 drives the positioning base 1 and each ejector rod assembly on the positioning base to move reversely, the extension spring 4 resets, one end of the pilot rod 3 used for pilot nut is exposed, and preparation is made for next pilot nut.
The nut locking auxiliary tool disclosed by the utility model is matched with automation equipment for locking screws and nuts, can realize the functions of jacking the nuts, guiding the nuts and carrying out locking detection, realizes three functions on one mechanism, can optimize space and simultaneously improves efficiency.
The above embodiments are only used to further illustrate the nut locking auxiliary tool of the present invention, but the present invention is not limited to the embodiments, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention fall within the protection scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a nut locking auxiliary fixtures which characterized in that: the nut locking mechanism comprises a positioning base, a power mechanism and at least one ejector rod assembly, wherein the power mechanism is connected with the positioning base so as to drive the positioning base to move towards the direction close to or far away from a product needing to lock a nut; the ejector pin subassembly includes cavity and can not pass the ejector pin of nut, can pass the positive pole of leading of nut to and the elastic component that resets, and the ejector pin sets up on the location base along the moving direction of location base, but leads positive pole axial motion ground and wear to locate in the ejector pin, and leads positive pole and realize elastic expansion through the elastic component that resets, and the one end that makes to lead positive pole and be used for leading the nut can stretch out outside the ejector pin or income ejector pin.
2. The nut locking auxiliary tool according to claim 1, characterized in that: the detector is arranged on the positioning base, or the detector is arranged on a mounting seat fixed on the positioning base; the detector sends out a signal when the guide rod is received in a designated position.
3. The nut locking auxiliary tool according to claim 2, characterized in that: the detector is a photoelectric switch, the other end of the guide rod is provided with a detection rod, the detection rod extends out of the back face of the positioning base, the side wall of the detection rod is provided with a light transmission groove, and when the light transmission groove reaches a detection point of the photoelectric switch, the photoelectric switch sends a signal.
4. The nut locking auxiliary tool according to claim 1, characterized in that: the ejector pin is provided with a first limiting part, the guide rod is provided with a second limiting part, and two ends of the reset elastic piece are limited in the first limiting part and the second limiting part respectively.
5. The nut locking auxiliary tool according to claim 4, characterized in that: the ejector rod comprises an inner rod and an outer rod, the inner rod and the outer rod are fixedly sleeved together, the guide rod penetrates through the inner rod, and the inner rod is provided with the first limiting part; the reset elastic piece is an extension spring and is sleeved outside the inner rod; the distance between the first limiting part and one end, used for guiding the nut, of the guide rod is smaller than the distance between the second limiting part and one end, used for guiding the nut, of the guide rod.
6. The nut locking auxiliary tool according to claim 5, characterized in that: the inner rod comprises a first rod body and a second rod body, one end of the first rod body is located outside the outer rod, the second rod body is located inside the outer rod, and the first limiting portion is arranged on the second rod body.
7. The nut locking auxiliary tool according to claim 5 or 6, characterized in that: the first limiting part is a step surface, and one end of the extension spring abuts against the step surface; the second limiting part is a necking part, and the other end of the extension spring is radially shrunk and sleeved on the necking part.
8. The nut locking auxiliary tool according to claim 1, characterized in that: the power mechanism is an air cylinder, and a piston rod of the air cylinder is connected with the positioning base.
9. The nut locking auxiliary tool according to claim 1, characterized in that: the positioning base is provided with a positioning structure for positioning the product.
10. The nut locking auxiliary tool according to claim 9, characterized in that: the positioning structure is a positioning groove which can enable the product to be partially embedded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122237429.0U CN215846801U (en) | 2021-09-15 | 2021-09-15 | Nut locking auxiliary fixtures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122237429.0U CN215846801U (en) | 2021-09-15 | 2021-09-15 | Nut locking auxiliary fixtures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215846801U true CN215846801U (en) | 2022-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122237429.0U Active CN215846801U (en) | 2021-09-15 | 2021-09-15 | Nut locking auxiliary fixtures |
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| Country | Link |
|---|---|
| CN (1) | CN215846801U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116810353A (en) * | 2023-01-12 | 2023-09-29 | 嘉善卡固电气设备股份有限公司 | Motor locking machine and processing method thereof |
-
2021
- 2021-09-15 CN CN202122237429.0U patent/CN215846801U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116810353A (en) * | 2023-01-12 | 2023-09-29 | 嘉善卡固电气设备股份有限公司 | Motor locking machine and processing method thereof |
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