CN111927229A - Universal process lock and mounting method thereof - Google Patents
Universal process lock and mounting method thereof Download PDFInfo
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- CN111927229A CN111927229A CN202010669522.6A CN202010669522A CN111927229A CN 111927229 A CN111927229 A CN 111927229A CN 202010669522 A CN202010669522 A CN 202010669522A CN 111927229 A CN111927229 A CN 111927229A
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
- E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
- E05C17/04—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
- E05C17/12—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod
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Abstract
The application relates to a general technical lock, which relates to the field of automobile processing and manufacturing, and is used for assisting automobile processing and comprises a strip-shaped spring steel body, wherein the middle part of the spring steel body is provided with at least one spiral structure; one end of the spring steel body is provided with a conical body which is used for being tightly matched with a door body lock hole of the automobile door, and the other end of the spring steel body is used for being inserted into a pin mounting hole of an automobile door frame lock; and after the two ends of the process lock are installed, the spiral structure is elastically deformed. The application also discloses an installation method of the process lock. The process lock and the installation method thereof are convenient to install and disassemble, high in universality, capable of meeting three procedures of welding, electrophoresis and finish paint, simple in structure and low in cost.
Description
Technical Field
The application relates to the field of automobile machining and manufacturing, in particular to a universal process lock and an installation method thereof.
Background
The technical lock is an indispensable tool in the automobile processing and manufacturing process, is mainly used for preventing the unexpected repeated opening and closing of the automobile door when the automobile door or the automobile body is processed and manufactured, and is mainly used in a welding process of a welding workshop, an electrophoresis process of a coating workshop and a finish paint process of the coating workshop. In a coating workshop, the electrophoresis process has higher requirement on the strength of a process lock, and after the vehicle door and the vehicle body are relatively fixed, the vehicle door and the vehicle body integrally enter and exit the tank body to bear the impact of various liquids in the tank body; in a welding workshop, the welding procedure has low requirement on the strength of the process lock, and the process lock is required to be as light and firm as possible; in a coating workshop, a finish paint process requires that a process lock has no scratch on a leaking part of a vehicle door; because the welding process, the electrophoresis process and the finish paint process have different emphasis points, two to three different types of process locks are required to be used in the automobile processing process, and the structure is complex and the cost is high.
Disclosure of Invention
The embodiment of the application provides a general process lock and an installation method thereof, the universality is strong, three procedures of welding, electrophoresis and finish paint can be simultaneously met, the structure is simple, and the cost is low.
In a first aspect, the present application provides a universal technological lock for assisting in automobile machining, wherein the technological lock comprises a spring steel body in a strip shape, and the middle of the spring steel body is provided with at least one spiral structure; one end of the spring steel body is provided with a conical body which is used for being tightly matched with a door lock body hole of the vehicle door, and the other end of the spring steel body is used for being inserted into a pin mounting hole of the vehicle door frame lock; and after the two ends of the process lock are installed, the spiral structure is elastically deformed.
In some embodiments, the other end of the spring steel body is provided with a positioning body, and one side of the positioning body is cut into a flat cutting surface; when the technical lock is installed, the cutting surface of the positioning body is abutted against the edge of the door frame.
In some embodiments, the cone is made of metal, the positioning body is made of a flange nut, and the cone and the positioning body are welded to the spring steel body.
In some embodiments, the spring steel body (1) has two helical structures (2) in the middle, and the axes of the two helical structures (2) are parallel. .
In some embodiments, the spring steel body has only one helical structure in the middle.
In some embodiments, the spring steel body is divided into a section a and a section B, wherein the section a is a side of the spring steel body facing the cone; the axis of the spiral structure is vertical and is respectively perpendicular to the plane of the section A and the plane of the section B.
In some embodiments, the a segment is divided into a body portion a1 segment and an end a2 segment; the section A2 is perpendicular to the section A1, and the section A2 is sleeved with the conical body; the section B is divided into a main body part section B1, a bending part section B2 and an end part section B3, the section B2 is positioned between the section B1 and the section B3, the section B2 forms obtuse angles with the sections B1 and B3 respectively, and the positioning body is mounted on the section B2.
In some embodiments, the end face of the taper is spaced from the end face of the section a 2.
In some embodiments, the helical structure has one helix.
In a second aspect, the present application provides an installation method based on the above process lock, including the following steps:
one end of the spring steel body, which corresponds to the pin mounting hole, is inserted into the pin mounting hole of the automobile door frame lock;
one end of the spring steel body, which is provided with the conical body, is pulled, so that the spiral structure is elastically deformed;
the spring steel body is provided with one end of a conical body which is inserted into the door lock body hole, and the conical body is matched with the inverted cone-shaped door lock body hole.
The beneficial effect that technical scheme that this application provided brought includes:
the embodiment of the application provides a universal process lock and an installation method thereof, wherein the process lock comprises a spring steel body, a spiral structure and a conical body, and the spiral structure in the middle of the spring steel body can generate elastic deformation; when the technical lock is used, one end of the spring steel body, which is provided with the conical body, is inserted into a door lock body hole of the vehicle door, and the conical body is tightly matched with the inverted conical door lock body hole; the other end of the spring steel body is inserted into a pin mounting hole of the doorframe lock; at the moment, the spiral structure is elastically deformed, and under the elastic action of the recovery deformation of the spiral structure, the spring steel body relatively locks the vehicle door and the vehicle frame;
the process lock simultaneously meets the requirements of three procedures of welding, electrophoresis and finish paint, the process lock fully utilizes the structures of the existing vehicle door and the vehicle frame, and the two ends of the process lock are respectively inserted into a pin mounting hole of the door frame lock and a door lock body hole of the vehicle door, so that the outer leakage part of the vehicle door is prevented from being scratched when the process lock is used; the process lock is simple in structure, mainly comprises a conical body and a spring steel body with a spiral structure, and is light in weight; the spring steel body has higher elastic modulus, the overall strength of the technical lock is high, and the car door and the door frame are firmly locked after installation.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a process lock provided in an embodiment of the present application;
fig. 2 is a schematic cut surface provided in an embodiment of the present application;
FIG. 3 is a schematic diagram illustrating a process lock according to an embodiment of the present disclosure;
FIG. 4 is a schematic view of an installation of a process lock provided in an embodiment of the present application;
FIG. 5 is a schematic view of a cone and a door lock body hole of a process lock according to an embodiment of the present application;
FIG. 6 is a schematic view of a positioning body and a door frame of a process lock according to an embodiment of the present disclosure;
FIG. 7 is a schematic view of a cutting surface of a positioning body of the process lock provided in the embodiment of the present application abutting against a door frame of a vehicle door;
reference numerals: 1. a spring steel body; 2. a helical structure; 3. a conical body; 4. a positioning body; 5. a door lock body aperture; 6. a pin mounting hole; 7. installing a gap; 20. cutting the surface; 100. and (5) locking the process.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As shown in fig. 1, in one embodiment, a universal craft lock is mainly used for assisting in machining automobiles, and the craft lock 100 includes a spring steel body 1 in a strip shape, and the spring steel body 1 has at least one spiral structure 2 in the middle. One end of the spring steel body 1 is provided with a conical body 3 which is used for being tightly matched with a door lock body hole of an automobile door, and the other end of the spring steel body 1 is used for being inserted into a pin mounting hole of an automobile door frame lock; and after the two ends of the technical lock 100 are installed, the spiral structure 2 is elastically deformed. At this time, the process lock 100 is used as a bridge for connecting a vehicle door and a door frame (the vehicle door is simply called a vehicle door, and the vehicle door frame is simply called a door frame), the elastic modulus of the spring steel body 1 is large, and the vehicle door is kept relatively fixed with the door frame under the elastic force action of the recovery deformation of the spiral structure 2.
Specifically, each automobile door is provided with three inverted cone-shaped door lock body holes 5 (see fig. 5), and the cone 3 and any one door lock body hole 5 can be used; each door frame is provided with two pin mounting holes 6 (see fig. 7), and the other end of the spring steel body 1 can be inserted into any one of the pin mounting holes 6.
In one embodiment, the other end of the spring steel body 1 is provided with a positioning body 4, and one side of the positioning body 4 is cut into a flat cutting surface 20; when the technical lock 100 is installed, the cutting surface 20 of the positioning body 4 is abutted against the door frame.
In one embodiment, the conical body 3 is made of metal, and the positioning body 4 is made of a flange nut and is also made of metal; the conical body 3 and the positioning body 4 are both welded on the spring steel body 1. The conical body 3 and the positioning body 4 are both made of metal pieces, so that the overall strength of the process lock can be improved.
In one embodiment, the middle of the spring steel body 1 has only one helix 2. In other embodiments, the middle of the spring steel body 1 has only two spiral structures 2, and the axes of the two spiral structures 2 are parallel to each other, and the two spiral structures 2 can further enhance the strength of the spring steel body 1, so that the relative positions of the door and the door frame are more stable when the technical lock 100 is used.
As shown in fig. 3, when the spring steel body 1 has a spiral structure 2, the spring steel body 1 is divided into a section a and a section B, wherein the section a is one side of the spring steel body 1 facing the conical body 3, and the section B is the other side of the spring steel body 1. The axis of the spiral structure 2 is vertical and is respectively perpendicular to the plane of the section A and the plane of the section B. When the technical lock 100 is installed between a vehicle door and a door frame, the position of the section A relative to the section B is changed, the spiral structure 2 is caused to generate elastic deformation, and the caused deformation enables the spiral of the spiral structure 2 to be enlarged without generating deformation along the axial direction of the spiral structure 2; the door and the door frame are relatively fixed under the elastic force of the spiral structure 2.
Preferably, the plane of segment a is parallel to the plane of segment B and both are perpendicular to the axis of the helix 2.
Further, the section A is divided into a main body part A1 section and an end part A2 section; the section A2 is perpendicular to the section A1, and the section A2 is sleeved with the cone 3. The section B is divided into a main body part section B1, a bending part section B2 and an end part section B3, the section B2 is positioned between the section B1 and the section B3, the section B2 forms obtuse angles with the sections B1 and B3 respectively, and the positioning body 4 is installed on the section B2. When the lock 100 is installed between the door and the door frame, the cutting surface 20 of the positioning body 4 is tightly attached to the edge of the door frame.
Preferably, the end face of the conical body 3 is at a distance from the end face of the section a 2; after the technical lock 100 is installed, the conical body 3 is matched with the door lock body hole 5, the front end of the section A2 is inserted into the door lock body hole 5, and the installation stability of the technical lock 100 can be further ensured by the aid of the arrangement.
Further, in the present embodiment, the helical structure 2 comprises only one helix. In other embodiments, the spiral structure 2 may also include more than two spirals, which may result in a better spring performance of the lock 100.
Preferably, the spring steel body 1 is made of silicon-manganese material, and the silicon-manganese material has high rigidity and strength and high elastic modulus and can generate high elastic force.
In this embodiment, spring steel body 1 adopts phi 5mm spring steel wire, and conical body 3 and locating body 4 all adopt metal construction, and the total mass of technology lock 100 is about 65g, and the quality is light, has greatly facilitated staff's transport.
In an embodiment of the present application, an installation method based on the above-mentioned process lock 100 is disclosed, which includes the following steps:
one end of the spring steel body 1 corresponding to the pin mounting hole 6 is inserted into the pin mounting hole 6 of the automobile door frame lock;
one end of the spring steel body 1, which is provided with the conical body 3, is pulled, so that the spiral structure 2 is elastically deformed;
one end of the spring steel body 1, which is provided with the conical body 3, is inserted into the door lock body hole, and the conical body 3 is matched with the inverted conical door lock body hole.
The door frame and the door are relatively fixed by the elastic force of the cone 3 of the technical lock 100. Further, after the vehicle is welded, electrophoresed or finish-painted, a worker holds one end of the spring steel body 1, which is provided with the conical body 3, pulls the spring steel body 1 to separate the conical body 3 from the door lock body hole 5, and removes the craft lock 100.
Furthermore, one end of the spring steel body 1 corresponding to the pin mounting hole 6 is provided with a positioning body 4, and one side of the positioning body 4 is cut into a flat cutting surface 20. When one end of the spring steel body 1, which is provided with the positioning body 4, is inserted into a pin mounting hole 6 of an automobile door frame lock, a certain mounting gap 7 is formed between a cutting surface 20 of the positioning body 4 and the edge of a door frame; when one end of the spring steel body 1 provided with the conical body 3 is pulled, the cutting surface 20 of the positioning body 4 is abutted against the edge of the door frame.
When spring steel body 1 has a helical structure 2, spring steel body 1 divide into A section and B section, and A section is spring steel body 1 towards one side of conical body 3, and B section is the opposite side of spring steel body 1. The axis of the spiral structure 2 is vertical and is respectively perpendicular to the plane of the section A and the plane of the section B. The A section is divided into a main body part A1 section and an end part A2 section; the section A2 is perpendicular to the section A1, and the section A2 is sleeved with the cone 3. The section B is divided into a main body part section B1, a bending part section B2 and an end part section B3, the section B2 is positioned between the section B1 and the section B3, the section B2 forms obtuse angles with the sections B1 and B3 respectively, and the positioning body 4 is installed on the section B2. Further, the obtuse angles of the B2 segment and the B1 segment, and the obtuse angles of the B2 segment and the B3 segment are different in direction (see fig. 3).
When the technical lock 100 is used, firstly, when one end of the spring steel body 1, which is provided with the positioning body 4, is inserted into the pin mounting hole 6, the section B3 is inserted into the pin mounting hole 6; when one end of the spring steel body 1, which is provided with the conical body 3, is pulled, not only the spiral structure 2 is elastically deformed, but also the transition part between the section B2 and the section B3 is also deformed, and at the moment, the cutting surface (20) of the positioning body 4 is tightly attached to the edge of the door frame. When the technical lock 100 is installed, the cutting surface (20) of the positioning body 4 is also tightly attached to the edge of the door frame.
In one embodiment, section a1 makes an angle of 164.5 degrees with section B1, section a1 makes a right angle with section a2, section B1 makes an angle of 120 degrees with section B2, and section B2 makes an angle of 130 degrees with section B3.
The embodiment of the application provides a universal process lock and an installation method thereof, wherein the process lock 100 comprises a spring steel body 1, a spiral structure 2 and a conical body 3, and the spiral structure 2 in the middle of the spring steel body 1 can generate elastic deformation; when the technical lock 100 is used, one end of the spring steel body 1, which is provided with the conical body 3, is inserted into the door lock body hole 5 of the vehicle door, and the conical body 3 is tightly matched with the inverted conical door lock body hole 5; the other end of the spring steel body 1 is inserted into a pin mounting hole 6 of the doorframe lock; at this time, the spiral structure 2 is elastically deformed, and the spring steel body 1 relatively locks the door and the door frame under the elastic force of the recovery deformation of the spiral structure 2.
The process lock 100 simultaneously meets the requirements of three procedures of welding, electrophoresis and finish paint, the process lock 100 fully utilizes the structures of the existing vehicle door and the existing door frame, two ends of the process lock 100 are respectively inserted into the pin mounting hole 6 and the door lock body hole 5, and the condition that the vehicle door is scratched to leak outside when the process lock 100 is used is avoided; the technical lock 100 is simple in structure, mainly comprises a conical body 3 and a spring steel body 1 with a spiral structure, and is light in weight; the spring steel body 1 is high in elastic modulus, the process lock 100 is large in overall rigidity and high in strength, and after the process lock 100 is installed, the spring steel body 1 relatively firmly locks a vehicle door and a door frame; the process lock has the advantages of realizing the unification of the process locks, reducing the production cost, having lower cost, being beneficial to popularization, and being convenient to carry and disassemble and capable of being repeatedly used due to simple structure and lighter weight.
The craft lock 100 ensures positioning accuracy by using the cone 3 to match with the door lock body hole 5. The spiral structure 2 of the lock 100 ensures the overall strength and adjustability of the lock 100. After the technical lock 100 is installed, the cutting surface 20 of the positioning body 4 is tightly attached to the edge of the doorframe, and surface contact is used for replacing point contact which may be generated, so that the stress of a unit area is reduced, the possibility of scratching is reduced, and even if the lock is scratched; when the door lock pin is installed subsequently, the door lock pin can be completely covered, so that the scratch of an outer leakage surface is avoided.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A universal process lock for assisting in automobile machining is characterized in that the process lock (100) comprises a spring steel body (1) in a strip shape, and the middle of the spring steel body (1) is provided with at least one spiral structure (2); one end of the spring steel body (1) is provided with a conical body (3) which is tightly matched with a door lock body hole (5) of an automobile door, and the other end of the spring steel body (1) is inserted into a pin mounting hole (6) of an automobile door frame lock; and after the two ends of the process lock (100) are installed, the spiral structure (2) is elastically deformed.
2. A universal process lock as claimed in claim 1, wherein: the other end of the spring steel body (1) is provided with a positioning body (4), and one side of the positioning body (4) is cut into a flat cutting surface (20); when the technical lock (100) is installed, the cutting surface (20) of the positioning body (4) is abutted against the edge of the door frame.
3. A universal process lock as claimed in claim 2, wherein: the conical body (3) is made of metal materials, the positioning body (4) is made of a flange nut, and the conical body (3) and the positioning body (4) are both welded on the spring steel body (1).
4. A universal process lock as claimed in claim 2, wherein: the middle part of the spring steel body (1) is provided with two spiral structures (2), and the axes of the two spiral structures (2) are parallel.
5. A universal process lock as claimed in claim 2, wherein: the middle part of the spring steel body (1) is provided with only one spiral structure (2).
6. A universal process lock as claimed in claim 5, wherein: the spring steel body (1) is divided into an A section and a B section, wherein the A section is one side of the spring steel body (1) facing the conical body (3); the axis of the spiral structure (2) is vertical and is respectively perpendicular to the plane of the section A and the plane of the section B.
7. A universal process lock as claimed in claim 6, wherein: the A section is divided into a main body part A1 section and an end part A2 section; the section A2 is perpendicular to the section A1, and the cone (3) is sleeved on the section A2; the section B is divided into a main body part section B1, a bending part section B2 and an end part section B3, the section B2 is positioned between the section B1 and the section B3, the section B2 forms obtuse angles with the sections B1 and B3 respectively, and the positioning body (4) is mounted on the section B2.
8. A universal process lock as claimed in claim 7, wherein: the end face of the conical body (3) is at a distance from the end face of the section A2.
9. A universal process lock as claimed in claim 1, wherein: the helical structure (2) has a helix.
10. A method of installing a process lock according to any one of claims 1 to 9, comprising the steps of:
one end of the spring steel body (1) corresponding to the pin mounting hole is inserted into the pin mounting hole (6) of the automobile door frame lock;
one end of the spring steel body (1) provided with the conical body (3) is pulled, so that the spiral structure (2) is elastically deformed;
the spring steel body (1) is provided with one end of the conical body (3) and is inserted into the door lock body hole, and the conical body (3) is matched with the inverted cone-shaped door lock body hole (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010669522.6A CN111927229A (en) | 2020-07-13 | 2020-07-13 | Universal process lock and mounting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010669522.6A CN111927229A (en) | 2020-07-13 | 2020-07-13 | Universal process lock and mounting method thereof |
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| Publication Number | Publication Date |
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| CN111927229A true CN111927229A (en) | 2020-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010669522.6A Pending CN111927229A (en) | 2020-07-13 | 2020-07-13 | Universal process lock and mounting method thereof |
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| CN (1) | CN111927229A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011156515A (en) * | 2010-02-03 | 2011-08-18 | Honda Motor Co Ltd | Door jig |
| CN201981278U (en) * | 2010-12-31 | 2011-09-21 | 长城汽车股份有限公司 | General fixture for car door electrophoresis of car coating |
| CN108071283A (en) * | 2016-11-18 | 2018-05-25 | 湖北方鼎科技发展有限公司 | A kind of car door spray painting technique door lock |
| CN207904394U (en) * | 2018-02-27 | 2018-09-25 | 北京现代汽车有限公司 | Vehicle door coating fixture |
| CN108728886A (en) * | 2018-07-24 | 2018-11-02 | 湖北大冶汉龙汽车有限公司 | A kind of painting dressing automobiles electrophoresis preventing car door from opening anticollision tooling |
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2020
- 2020-07-13 CN CN202010669522.6A patent/CN111927229A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011156515A (en) * | 2010-02-03 | 2011-08-18 | Honda Motor Co Ltd | Door jig |
| CN201981278U (en) * | 2010-12-31 | 2011-09-21 | 长城汽车股份有限公司 | General fixture for car door electrophoresis of car coating |
| CN108071283A (en) * | 2016-11-18 | 2018-05-25 | 湖北方鼎科技发展有限公司 | A kind of car door spray painting technique door lock |
| CN207904394U (en) * | 2018-02-27 | 2018-09-25 | 北京现代汽车有限公司 | Vehicle door coating fixture |
| CN108728886A (en) * | 2018-07-24 | 2018-11-02 | 湖北大冶汉龙汽车有限公司 | A kind of painting dressing automobiles electrophoresis preventing car door from opening anticollision tooling |
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Application publication date: 20201113 |
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