CN111660241B - Multi-head screw tightening device capable of preventing screw scratch - Google Patents
Multi-head screw tightening device capable of preventing screw scratch Download PDFInfo
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- CN111660241B CN111660241B CN202010370284.9A CN202010370284A CN111660241B CN 111660241 B CN111660241 B CN 111660241B CN 202010370284 A CN202010370284 A CN 202010370284A CN 111660241 B CN111660241 B CN 111660241B
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- 230000006835 compression Effects 0.000 claims description 17
- 238000007906 compression Methods 0.000 claims description 17
- 241000251468 Actinopterygii Species 0.000 claims description 7
- 238000009434 installation Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 244000309464 bull Species 0.000 description 3
- 238000005381 potential energy Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/02—Arrangements for handling screws or nuts
- B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
- B25B23/10—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means
- B25B23/105—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means the gripping device being an integral part of the driving bit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/02—Arrangements for handling screws or nuts
- B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
- B25B23/12—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using magnetic means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention discloses a multi-head screw tightening device capable of preventing screw scratches, which comprises a cylindrical screw and a tightening head, wherein the cylindrical screw is arranged at the lower end of the tightening head, and a hexagonal head is arranged at the upper end of the cylindrical screw.
Description
Technical Field
The invention belongs to the technical field of screw installation, and particularly relates to a multi-head screw tightening device capable of preventing a screw from being scratched.
Background
The Screw refers to a Screw (foreign name: screen), which is a tool for fastening a machine part step by utilizing the physical and mathematical principles of the inclined circular rotation and friction force of an object. Screws are a common way of speaking fasteners, daily spoken words. Screws are a common fastener and are widely used in machinery, electrical appliances and buildings. The material is generally metal or plastic, is cylindrical, and is provided with concave-convex grooves on the surface, which are called threads. In order to make the screw installation more labor-saving and convenient, the screw installation is usually assisted by a tightening head.
The existing screw mounting tightening head technology has the following problems: before installing the cylinder screw on the screw-down head, need install the hexagonal nail head of cylinder screw upper end in the pin head mounting groove of screw-down head lower extreme, and the hexagonal nail head needs the manual work to align when the installation, if the deviation appears easily causing the fish tail to the pin head surface when aligning, consequently need expend some efforts, and install the cylinder screw on the screw-down head, night often rocks because of fixed infirm to skew appears when the hexagonal nail head is installed, and the installation is easy to cause the fish tail to cylinder screw surface screw thread and cause the damage to cylinder screw top screw head by force, greatly influences the life of screw.
Disclosure of Invention
The invention aims to provide a multi-head screw tightening device for preventing a screw from being scratched, so as to solve the problems that the hexagonal screw head proposed in the background art is required to be manually aligned in a screw head mounting groove at the lower end of the tightening head, the surface of the screw head is easily scratched due to deviation, and the cylindrical screw is easy to shake after being mounted on the tightening head.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a prevent bull screw tightening device of screw fish tail, includes cylinder screw and screws up the head, cylinder screw installs the lower extreme at the screw up the head, cylinder screw's upper end is provided with the hexagonal pin head, be connected with the rotation axostylus axostyle on the upper end outer wall of screw up the head, be provided with the pin head draw-in groove on the lower extreme outer wall of screw up the head, the inside extension chamber that is provided with of screw head draw-in groove left and right sides screw up the head, the inside telescopic tube that is provided with of upper and lower both ends of extension chamber, telescopic tube's inside is provided with the stretching rod that outwards stretches out, the inboard one end of stretching rod is provided with spacing card foot, through compression spring fixed connection between spacing card foot and the telescopic tube, compression spring's left and right sides is connected with the spring rubber circle, the outside one end of stretching rod is connected with the current-conducting plate, be connected with the electro-magnet on the outside one end outer wall of current-conducting plate.
Preferably, the upper end outer wall of the conductive plate is provided with a conductive antenna, a wire groove is formed in the tightening head at the upper side of the conductive antenna, and an electromagnet on the outer wall of one end of the outer side of the conductive plate is electrically connected with an external power supply through the conductive antenna.
Preferably, the cross section of the nail head clamping groove is regular hexagon, and the hexagonal nail head fixing clamp at the upper end of the cylindrical screw is placed in the nail head clamping groove.
Preferably, two stretching chambers are respectively arranged, and the two stretching chambers and the nail head clamping groove are kept in a mutually communicated state.
Preferably, the limiting clamping foot of the inner side end of the stretching rod is fixedly clamped in the telescopic tube, and the telescopic tube, the limiting clamping foot and the circle center of the stretching rod are transversely arranged on the same straight line.
Preferably, the left end and the right end of the compression spring are fixedly embedded in the spring rubber rings, and the two spring rubber rings are respectively fixedly attached to the opposite inner walls of the telescopic sleeve and the limiting clamping foot.
Preferably, two electromagnets on the left side and the right side of the nail head clamping groove are kept in a mutually parallel state, and the lengths of the two electromagnets are the same.
Preferably, the guide clamping balls are six, the diameters of the circumferences of the six guide clamping balls are the same, and the connecting lines between the six guide clamping balls are in a regular hexagon structure.
Preferably, the outer wall of the lowest end of the nail head clamping groove and the outer wall of the lower end of the tightening head are arc-shaped smooth curved surfaces.
Compared with the prior screw tightening head technology for screw installation, the invention provides a multi-head screw tightening device for preventing screw scratches, which has the following beneficial effects:
1. According to the invention, the six guide clamping balls are uniformly arranged on the outer wall of the screwing head at the outer side of the bottom of the nail head clamping groove, and the six guide clamping balls are in a tangential state with the inner wall of the nail head clamping groove vertically, so that the screwing head can be conveniently and automatically rotated and adjusted under the action of the six guide clamping balls, the nail head clamping groove on the outer wall of the lower end of the screwing head can be approximately aligned with the hexagonal nail head, when the screwing head is pressed downwards, the hexagonal nail head is limited by blocking of the six guide clamping balls, so that the hexagonal nail head can only store a fixed angle, the hexagonal nail head can conveniently fall into the lower end of the nail head clamping groove, and the hexagonal nail head can automatically slide into the nail head clamping groove due to the smooth curved surface of the bottommost end of the nail head clamping groove and the outer wall of the lower end of the screwing head, thereby facilitating the quick falling of the hexagonal nail head, avoiding the phenomenon that the surface of a screw nail is scratched due to the fact that larger friction is generated between the screwing head and the hexagonal nail head, saving the manual fixing mode, and improving the working efficiency;
2. According to the invention, when the two electromagnets are used for fixedly clamping the hexagonal head placed in the head clamping groove in the electrified state, the compression spring in the telescopic sleeve is in a stretched state and has a certain elastic potential energy, and when the power supply is turned off to stop the screwing head, the two electromagnets in the stretching chamber lose electric energy to enable magnetic force to disappear, at the moment, the two electromagnets can be recovered inwards under the action of the elastic force of the compression spring in the telescopic sleeve and retracted into the stretching chamber, so that the screwing head is easy to take off from the cylindrical screw, the novel screwing device can effectively avoid scratch on the screw surface caused by deflection due to shaking when the cylindrical screw is installed, and the service life of the screw can be prolonged.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate and together with the embodiments of the invention and do not constitute a limitation to the invention, and in which:
FIG. 1 is a schematic diagram of a multi-head screw tightening device for preventing a screw from being scratched;
FIG. 2 is a schematic view of the internal structure of the tightening head according to the present invention;
FIG. 3 is a schematic view of the internal structure of the telescopic tube according to the present invention;
FIG. 4 is a schematic view of a tightening head connection structure according to the present invention;
in the figure: 1. a cylindrical screw; 2. hexagonal pin head; 3. tightening the head; 4. a nail head clamping groove; 5. rotating the shaft lever; 6. wire grooves; 7. a stretching chamber; 8. a conductive plate; 9. an electromagnet; 10. a telescoping tube; 11. Spring rubber rings; 12. a compression spring; 13. limiting clamping feet; 14. a stretching rod; 15. a conductive antenna; 16. Guiding the clamping ball; 17. and supporting the ejector rod.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without creative efforts, are within the protection scope of the invention.
In the description of the present invention, it should be noted that the positional or positional relation indicated by the terms such as "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the positional or positional relation shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a prevent multi-head screw tightening device of screw fish tail, including cylindrical screw 1 and tightening head 3, cylindrical screw 1 installs the lower extreme of tightening head 3, cylindrical screw 1's upper end is provided with hexagonal nail head 2, be connected with rotation axostylus axostyle 5 on tightening head 3's the upper end outer wall, be provided with nail head draw-in groove 4 on tightening head 3's the lower extreme outer wall, nail head draw-in groove 4's the bottommost and tightening head 3's lower extreme outer wall is arc smooth curved surface, can conveniently with tightening head 3 rotary adjustment under six guide clamp ball 16's effect, make it can aim at hexagonal nail head 2 to tightening head 3 under the nail head draw-in groove 4's effect, and just can be when pressing down tightening head 3, through six guide clamp ball 16's the restriction hexagonal nail head 2 can only preserve fixed angle, thereby make things convenient for hexagonal head 2 to fall into nail head draw-in groove 4's lower extreme, and because the smooth curved surface of nail head draw-in groove 4's lower extreme outer wall makes, hexagonal head 2 can be automatic to the draw-in groove 4, thereby can lead to the fact the hexagonal head 2 to the hexagonal head 1 to the damage in the cylindrical screw 1 in the side of the guide clamp ball 1, thereby the cylindrical screw 1 is placed in the side of the head 1, the cylindrical screw 1 has been avoided the hexagonal head 1 to be down the guide clamp ball 1, thereby the damage the cylindrical screw 1 is formed in the front of the head 1, and the head 1 is placed in the front of the head 1, and the head 1 is tightly down the front of the cylindrical screw 1.
The utility model provides a prevent bull screw tightening device of screw fish tail, the inside extension room 7 that is provided with of the tightening head 3 of the left and right sides including pin head draw-in groove 4, extension room 7 is provided with two respectively, keep intercommunication state between two extension rooms 7 and the pin head draw-in groove 4, make the electromagnetism 9 in two extension rooms 7 of pin head draw-in groove 4 both sides can outwards stretch out, fix the hexagonal pin head 2 clamp of placing in pin head draw-in groove 4, thereby avoid when installing cylindrical screw 1 because of rocking and appear crookedly cause the scratch to cylindrical screw 1 surface screw, influence cylindrical screw 1's continuation use, the inside telescopic tube 10 that is provided with in upper and lower both ends of extension room 7, telescopic tube 10's inside is provided with the stretching rod 14 that outwards stretches out, the inboard one end of stretching rod 14 is provided with spacing block 13, the spacing block 13 fixed block of the inboard one end of stretching rod 14 is put in telescopic tube 10, the centre of a straight line of a circle of telescopic tube 10, spacing block 13 and stretching rod 14 transversely limit stretching rod 14, it is fixed to limit stretching tube 10 through spacing block 13, make telescopic tube 10, the effect that the whole telescopic tube is formed under the telescopic tube 10, the effect that the spacing block 13 and stretching rod 14 prevent to pull tube is compressed under the whole structure of stretching tube 13.
A multi-head screw tightening device for preventing screw scratch comprises a limit clamping foot 13 and a telescopic tube 10 which are fixedly connected through a compression spring 12, the left and right ends of the compression spring 12 are connected with spring rubber rings 11, the left and right ends of the compression spring 12 are fixedly embedded in the spring rubber rings 11, the two spring rubber rings 11 are respectively fixed and attached to the opposite inner walls of the telescopic tube 10 and the limit clamping foot 13, the telescopic tube 10 and the limit clamping foot 13 are mutually connected through the compression spring 12, when a tightening head 3 is in a working state, two electromagnets 9 on the left and right sides of a nail head clamping groove 4 can generate magnetic force action to enable the two electromagnets 9 to be mutually close, at the moment, the compression spring 12 in the telescopic tube 10 is in a stretching state and has certain elastic potential energy, when the tightening head 3 stops working, the two electromagnets 9 lose electric energy to make magnetic force disappear, at the moment, the two electromagnets 9 can be recovered inwards under the action of the elastic force of the compression spring 12 in the telescopic tube 10, so that the tightening head 3 is easily taken down from the cylindrical screw 1, one end of the outer side of the stretching rod 14 is connected with the conducting plate 8, the electromagnet 9 is connected to the outer wall of one end of the outer side of the conducting plate 8, the two electromagnets 9 at the left side and the right side of the nail head clamping groove 4 are kept in a mutually parallel state, the two electromagnets 9 have the same length, the two electromagnets 9 at the left side and the right side of the nail head clamping groove 4 are symmetrically arranged, after the two electromagnets 9 are electrically connected with an external power supply through the conducting antenna 15 on the outer wall of the upper end of the conducting plate 8, electric energy can be obtained to generate strong magnetic force, so as to mutually close and clamp the hexagonal nail head 2 placed in the nail head clamping groove 4, so that the cylindrical screw 1 can be firmly fixed in the nail head clamping groove 4.
The utility model provides a prevent bull screw tightening device of screw fish tail, is connected with on the lower extreme outer wall of screwing up head 3 and supports ejector pin 17, the lower extreme of supporting ejector pin 17 is connected with direction clamp ball 16, direction clamp ball 16 is provided with six, the circumference diameter of six direction clamp balls 16 is the same, the line between six direction clamp balls 16 is regular hexagon structure, six direction clamp balls 16 evenly distributed is on the screwing up head 3 outer wall in the nail head draw-in groove 4 bottom outside, because six direction clamp balls 16 keep tangent state with the inner wall of nail head draw-in groove 4 vertically, make can be when screwing up head 3 place in the upper end of hexagonal nail head 2 in, can lead into nail head draw-in groove 4 through the spherical cambered surface of six direction clamp balls 16, thereby make hexagonal nail head 2 can accurately fall into nail head draw-in groove 4 on screwing up head 3 lower extreme outer wall, make can drive hexagonal nail head 2 through screwing up, replace manual work, avoid causing hexagonal nail head 2, be provided with feeler 15 on the upper end outer wall of conductive plate 8, the feeler 15 is provided with on the outer wall of conductive plate 8, the electric wire groove 9 is screwed up with the outside conductive plate 9 through the electric wire groove 6.
The working principle and the using flow of the invention are as follows: after the invention is installed, as the lower end of the screwing head 3 is provided with the hexagonal head 2 which is mutually matched with the upper end of the cylindrical screw 1, six guide clamping balls 16 are uniformly distributed on the outer wall of the screwing head 3 outside the bottom of the hexagonal head 4, and the screwing head 3 can be conveniently rotated and adjusted under the action of the six guide clamping balls 16 because the six guide clamping balls 16 are in a tangential state with the vertical inner wall of the screwing head 4, so that the hexagonal head 2 can be aligned with the hexagonal head 4 on the outer wall of the lower end of the screwing head 3, and the hexagonal head 2 can be only kept at a fixed angle by the blocking of the six guide clamping balls 16 when the screwing head 3 is pressed downwards, thereby facilitating the hexagonal head 2 to fall into the lower end of the hexagonal head 4, and the smooth curved surface of the bottommost end of the hexagonal head 4 and the outer wall of the lower end of the screwing head 3, the hexagonal screw head 2 can automatically slide into the screw head clamping groove 4, thereby facilitating the quick positioning of the hexagonal screw head 2, avoiding the occurrence of scratches on the screw surface caused by the larger friction between the screwing head 3 and the hexagonal screw head 2, leading the cylindrical screw 1 to be capable of placing the hexagonal screw head 2 in the screw head clamping groove 4 before installation, arranging the stretching chambers 7 communicated with the hexagonal screw head 2 at two sides of the screw head clamping groove 4, symmetrically arranging two electromagnets 9 in the stretching chamber 7, and after the two electromagnets 9 are electrically connected with an external power supply through the conductive antenna 15 on the outer wall of the upper end of the conductive plate 8, obtaining electric energy to generate strong magnetic force, thereby mutually closing and clamping the hexagonal screw head 2 placed in the screw head clamping groove 4, leading the cylindrical screw 1 to be firmly fixed in the screw head clamping groove 4, at this time, the compression spring 12 in the telescopic tube 10 is in a stretched state and has a certain elastic potential energy, the tightening head 3 is connected with the rotating motor through the rotating shaft rod 5, so that the cylindrical screw 1 can be quickly installed at a designated position, after the cylindrical screw 1 is installed, the power supply is turned off, the tightening head 3 stops working, the two electromagnets 9 in the stretching chamber 7 lose electric energy, so that magnetic force disappears, and at this time, the two electromagnets 9 can be recovered inwards under the action of the elasticity of the compression spring 12 in the telescopic tube 10 and retract into the stretching chamber 7, so that the tightening head 3 is easily taken down from the cylindrical screw 1, and the scratch on the thread surface of the cylindrical screw 1 is avoided.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a prevent multi-headed screw tightening device of screw fish tail, includes cylinder screw (1) and screws up first (3), its characterized in that: the cylindrical screw (1) is arranged at the lower end of the screwing head (3), a hexagonal pin head (2) is arranged at the upper end of the cylindrical screw (1), a rotating shaft rod (5) is connected to the outer wall of the upper end of the screwing head (3), pin head clamping grooves (4) are formed in the outer wall of the lower end of the screwing head (3), a stretching chamber (7) is formed in the screwing head (3) at the left side and the right side of the pin head clamping grooves (4), telescopic tubes (10) are arranged in the upper end and the lower end of the stretching chamber (7), a stretching rod (14) stretching outwards is arranged in the telescopic tubes (10), a limiting clamping pin (13) is arranged at one end of the inner side of each stretching rod (14), each limiting clamping pin (13) is fixedly connected with each telescopic tube (10) through a compression spring (12), a spring rubber ring (11) is connected to the left end and the right end of each compression spring (12), a conducting plate (8) is connected to one end of the outer side of each stretching rod (14), and a supporting ball (17) is connected to one end of each electromagnet (9) on the outer wall of each electromagnet (8), and the supporting end (17) is connected to the lower end of each supporting rod; the upper end outer wall of the conductive plate (8) is provided with a conductive antenna (15), a wire slot (6) is formed in the tightening head (3) at the upper side of the conductive antenna (15), and an electromagnet (9) on the outer wall of one end at the outer side of the conductive plate (8) is electrically connected with an external power supply through the conductive antenna (15); the cross section of the pin head clamping groove (4) is regular hexagon, and the hexagonal pin head (2) at the upper end of the cylindrical screw (1) is fixedly clamped in the pin head clamping groove (4).
2. A multi-start screw tightening device for preventing scoring of screws as recited in claim 1, wherein: the two stretching chambers (7) are respectively arranged, and the two stretching chambers (7) and the nail head clamping groove (4) are kept in a mutually communicated state.
3. A multi-start screw tightening device for preventing scoring of screws as recited in claim 1, wherein: the limiting clamping foot (13) at one end of the inner side of the stretching rod (14) is fixedly clamped in the telescopic tube (10), and the circle centers of the telescopic tube (10), the limiting clamping foot (13) and the stretching rod (14) are transversely arranged on the same straight line.
4. A multi-start screw tightening device for preventing scoring of screws as recited in claim 1, wherein: the left end and the right end of the compression spring (12) are fixedly embedded in the spring rubber rings (11), and the two spring rubber rings (11) are respectively fixedly attached to the opposite inner walls of the telescopic sleeve (10) and the limiting clamping foot (13).
5. A multi-start screw tightening device for preventing scoring of screws as recited in claim 1, wherein: the two electromagnets (9) on the left side and the right side of the nail head clamping groove (4) are kept in a mutually parallel state, and the lengths of the two electromagnets (9) are the same.
6. A multi-start screw tightening device for preventing scoring of screws as recited in claim 1, wherein: six guide clamping balls (16) are arranged, the diameters of the circumferences of the six guide clamping balls (16) are the same, and the connecting lines between the six guide clamping balls (16) are of a regular hexagon structure.
7. A multi-start screw tightening device for preventing scoring of screws as recited in claim 1, wherein: the lowest end of the nail head clamping groove (4) and the outer wall of the lower end of the screwing head (3) are arc-shaped smooth curved surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010370284.9A CN111660241B (en) | 2020-04-30 | 2020-04-30 | Multi-head screw tightening device capable of preventing screw scratch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010370284.9A CN111660241B (en) | 2020-04-30 | 2020-04-30 | Multi-head screw tightening device capable of preventing screw scratch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111660241A CN111660241A (en) | 2020-09-15 |
| CN111660241B true CN111660241B (en) | 2024-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010370284.9A Active CN111660241B (en) | 2020-04-30 | 2020-04-30 | Multi-head screw tightening device capable of preventing screw scratch |
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| CN (1) | CN111660241B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113134720B (en) * | 2021-04-09 | 2022-02-22 | 昆山市嘉驭汽车饰件有限公司 | Arranging device and method for automatic nailing of automobile wrapping layer |
| CN113941975B (en) * | 2021-11-11 | 2023-02-03 | 中国核动力研究设计院 | Positioning mechanism and valve stroke control mechanism adjustment auxiliary device based on positioning mechanism |
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