CN110640402A - Metal plate pin adjusting assembly process - Google Patents
Metal plate pin adjusting assembly process Download PDFInfo
- Publication number
- CN110640402A CN110640402A CN201910882715.7A CN201910882715A CN110640402A CN 110640402 A CN110640402 A CN 110640402A CN 201910882715 A CN201910882715 A CN 201910882715A CN 110640402 A CN110640402 A CN 110640402A
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- CN
- China
- Prior art keywords
- metal plate
- nut column
- riveting nut
- hole
- assembly process
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
Abstract
The invention discloses a metal plate pin adjusting assembly process, which relates to the technical field of furniture and comprises the following steps: firstly, punching a metal plate; then putting the press-riveting nut column into the through hole, and then knocking the press-riveting nut column into the metal plate by using a punch; then, the adjusting foot is assembled. According to the metal plate pin-adjusting assembly process, the riveting nut column and the metal plate are riveted and fixed by the principle of extrusion and expansion between the riveting nut column and the metal plate, and the metal plate pin-adjusting assembly process has two advantages: firstly, the back surface of the metal plate is kept completely embedded and leveled, and meanwhile, the head of the riveting nut column and the plane of the plate are ensured to be smooth, so that a back surface processing flow is omitted; secondly, by using the assembly process, the threads of the rivet pressing nut column which is knocked into the metal plate are smooth, and the problem that the pins are adjusted and inclined due to the fact that the welding of the nuts is not vertical in the traditional process is solved.
Description
Technical Field
The invention relates to the technical field of furniture, in particular to a metal plate pin adjusting assembly process.
Background
The adjusting pin is often used in the furniture manufacturing process, the traditional metal plate adjusting pin assembling method usually adopts a welding nut process, and a 10 mm steel plate is drilled and tapped on the reverse side to have the defects and hidden troubles: the current situation of all existing processing drill bits is that the ground shape is a cone, so that under the condition of no perforation and no defect on the surface of a steel plate, the maximum depth is 8.5 mm, the maximum effective tapping distance is 6 mm, the actual effective tapping is about 5mm by adding production errors and a reverse chamfering process after drilling, and the most fatal defects are that the effective tapping distance is too long, and the length of a screw rod for adjusting a foot is only the same or shorter. The adjusting foot is only 4-5 mm. And the tap is easy to be damaged in the hole due to improper operation. Later-adopted drilling welded nuts indeed solve the phenomenon of unstable tooth length on the surface, but a new problem appears that the pin is inclined due to the fact that the nut welding is not vertical, the thread depth is not enough, and the pin distance is not long enough.
And if the metal sheet is perforated, the nut needs to be welded, the phenomenon that the surface of the metal sheet is uneven can occur when the nut is welded, and the problem that the pin is not vertically adjusted and the pin is obliquely installed can occur when the nut is welded.
Therefore, it is necessary to provide a metal plate leg adjusting assembly process which is time-saving and labor-saving, has stable leg adjusting installation and does not have the inclined leg adjusting condition.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a metal plate pin adjusting assembly process.
In order to achieve the above objects and other related objects, the present invention provides the following technical solutions: the utility model provides a metal sheet transfers foot assembly process, includes metal sheet, presses rivet nut and transfers the foot, its characterized in that includes following step:
the method comprises the following steps: firstly, punching a metal plate;
step two: then putting the riveting nut column into the punched hole, and knocking the riveting nut column into the metal plate by using a punch press so as to fixedly connect the riveting nut column with the metal plate;
step three: and finally, the threaded end of the adjusting pin is turned into the screw hole of the pressure riveting nut column.
The preferable technical scheme is as follows: when the metal plate is punched, the punched hole can be a through hole or a blind hole.
The preferable technical scheme is as follows: when the metal plate is punched, the size of the metal plate is processed according to the tolerance size of 0 +/-0.075 mm.
The preferable technical scheme is as follows: the tail of the pressure riveting nut column is hexagonal, the head of the pressure riveting nut column is cylindrical, and a tool withdrawal groove is formed in the joint of the tail and the head.
The preferable technical scheme is as follows: the outer diameter of the cylinder of the pressure riveting nut column is smaller than the aperture of the punched hole.
The preferable technical scheme is as follows: the length of the screw on the adjusting foot is larger than the depth of the internal thread of the pressure riveting nut column; when the punched hole is a blind hole, the depth of the blind hole is larger than the height of the pressure riveting nut column.
Due to the application of the technical scheme, compared with the prior art, the invention has the advantages that:
1. compared with the traditional welding process in which a polishing procedure is required on the back surface of the metal plate, the method adopts the press riveting nut column, so that the back surface of the metal plate is kept completely embedded, the head of the press riveting nut column is ensured to be smooth with the plane of the plate, a processing flow is omitted, and the cost is saved.
2. Compared with the traditional welding process, the riveting nut column for knocking in the metal plate has smooth threads, the problem that the welding of the nut is not vertical in the traditional process to cause the inclination of the adjusting pin is solved, and the product quality is improved.
3. Compared with the traditional welding process, the welding nut has the phenomenon of unstable shaking after being used for a period of time, the tail of the riveting nut column used in the invention is hexagonal, the head of the riveting nut column is cylindrical, a tool withdrawal groove is arranged between the head and the tail, the tail is pressed into a preset punching hole of a metal plate through a punch press to enable the periphery of the hole to generate plastic deformation, and the deformed part is squeezed into the tool withdrawal groove, so that the riveting nut column is riveted on the metal plate. The riveting nut column is stably fixed with the metal plate, is not easy to fall off and shake, and has longer service life.
Drawings
FIG. 1 is a schematic structural diagram of a metal plate punched with a through hole according to the present invention.
FIG. 2 is a front view of a metal plate of the present invention punched with blind holes.
In the above drawings, 1, a metal plate; 2. pressing and riveting the nut column; 3. a head portion; 4. a tail portion; 5. a tool withdrawal groove; 6. and adjusting feet.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.
In the description of the present application, it is to be understood that the terms "lateral," "length," "width," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner and are not to be construed as limiting the present invention.
In addition, in the present application, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integral to; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Other advantages and capabilities of the present invention will be readily apparent to those skilled in the art from the following detailed description of the embodiments of the present invention when taken in conjunction with the accompanying drawings.
Example 1: when the metal plate is punched as a through hole.
As shown in fig. 1, the invention provides a metal plate pin adjusting assembly process, which comprises the following steps: firstly, processing and punching a metal plate 1 to form a through hole, then placing a head 3 of a press riveting nut column 2 into the through hole, and knocking a tail 4 of the press riveting nut column 2 into the metal plate 1 by using a punch press so as to fixedly rivet the press riveting nut column 2 and the metal plate 1; finally, the tuning pin 6 is installed.
Example 2: when the metal plate is punched as a blind hole.
As shown in fig. 2, the assembly process for adjusting the pins of the metal plate provided by the invention comprises the following steps: firstly, processing and punching a metal plate 1 to form a blind hole, then placing the head 3 of a press riveting nut column 2 into the blind hole, and knocking the tail 4 of the press riveting nut column 2 into the metal plate 1 by using a punch press so as to fixedly rivet the press riveting nut column 2 and the metal plate 1; finally, the tuning pin 6 is installed.
The preferred embodiments are: when punching a hole, the metal plate 1 is processed according to the tolerance size of 0 +/-0.075 mm, and the assembly accuracy is guaranteed according to the unified processing standard.
The preferred embodiments are: the tail part 4 of the riveting nut column 2 is hexagonal so that the riveting nut column 2 and the metal plate 1 cannot rotate after punching of a punch press, the head part 3 of the riveting nut column 2 is cylindrical, a tool withdrawal groove 5 is formed in the joint of the head part 3 and the tail part 4, the punch press can press the tail part 4 into a preset punching hole of the metal plate 1 to enable the periphery of the hole to generate plastic deformation, and the deformed part is squeezed into the tool withdrawal groove 5 so that the riveting nut column 2 is riveted on the metal plate 1.
The preferred embodiments are: the outer diameter of the cylinder of the press riveting nut column 2 is smaller than the hole diameter of the punched hole, so that the press riveting nut column 2 can be placed into the punched hole in the metal plate 1, and smooth punching of a punching machine is ensured.
The preferred embodiments are: the length of the screw on the adjusting foot 6 is larger than the depth of the internal thread of the riveting nut column 2, so that the height in a wider range can be adjusted conveniently.
The preferred embodiments are: when the punched hole on the metal plate 1 is a blind hole, the depth of the blind hole is larger than the height of the riveting nut column 2, so that the adjustable height range of the adjusting foot 6 is larger.
Tool withdrawal grooves: in lathe machining, such as turning an inner hole and turning a thread, in order to facilitate withdrawing a tool and machining a process to the bottom of a blank, a tool withdrawal recess, called a tool withdrawal recess, is usually formed in advance at the end of a surface to be machined.
The principle of the invention is as follows: the tail of the riveting nut column placed in the punching of the metal plate through punching of the punching machine enables the periphery of the punching on the metal plate to generate plastic deformation, the deformed part is extruded into the tool withdrawal groove formed in the riveting nut column, the riveting nut column is tightly riveted on the metal plate, the effect that the nut is fixedly connected into the metal plate is achieved, and finally the threaded end of the adjusting pin is shifted into the screw hole of the riveting nut column to be adjusted to a required position.
Therefore, the invention effectively overcomes the defects existing in the prior art in a welding mode: the welding instability leads to short service life of the product; the welding of the nut is not vertical, so that the inclination of the adjusting pin is caused, and the expected use effect cannot be achieved; and the back of the metal plate needs to be polished after welding, so that the working procedures are increased. The new metal plate pin adjusting assembly process is provided by adopting a pressing rivet nut column to punch into a metal plate. The invention has the following three advantages:
1. according to the invention, the press riveting nut column is adopted, so that the back surface of the metal plate is kept to be completely embedded, the head of the press riveting nut column is ensured to be smooth with the plane of the plate, a processing flow is omitted, and the cost is saved;
2. the riveting nut column which is knocked into the metal plate has smooth threads, the problem that the welding of the nut is not vertical in the traditional process to cause the inclination of the adjusting pin is solved, and the product quality is improved;
3. according to the invention, the tail part of the riveting nut column is pressed into the preset punching hole of the metal plate through the punch press, so that the periphery of the hole generates plastic deformation, and the deformed part is extruded into the tool withdrawal groove, so that the riveting nut column is riveted on the metal plate. The riveting nut column is stably fixed with the metal plate, is not easy to fall off and shake, and has longer service life.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. The utility model provides a metal sheet transfers foot assembly process, includes metal sheet, presses rivet nut and transfers the foot, its characterized in that includes following step:
the method comprises the following steps: firstly, punching a metal plate;
step two: then putting the riveting nut column into the punched hole, and knocking the riveting nut column into the metal plate by using a punch press so as to fixedly connect the riveting nut column with the metal plate;
step three: and finally, the threaded end of the adjusting pin is turned into the screw hole of the pressure riveting nut column.
2. The process for assembling a metal plate pin according to claim 1, wherein: when the metal plate is punched, the punched hole can be a through hole or a blind hole.
3. The process for assembling a metal plate pin according to claim 1, wherein: when the metal plate is punched, the size of the metal plate is processed according to the tolerance size of 0 +/-0.075 mm.
4. The process for assembling a metal plate pin according to claim 1, wherein: the tail of the pressure riveting nut column is hexagonal, the head of the pressure riveting nut column is cylindrical, and a tool withdrawal groove is formed in the joint of the tail and the head.
5. The process for assembling a metal plate pin according to claim 1, wherein: the outer diameter of the cylinder of the pressure riveting nut column is smaller than the aperture of the punched hole.
6. The process for assembling a metal plate pin according to any one of claim 1 or claim 2, wherein: the length of the screw on the adjusting foot is larger than the depth of the internal thread of the pressure riveting nut column; when the punched hole is a blind hole, the depth of the blind hole is larger than the height of the pressure riveting nut column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910882715.7A CN110640402A (en) | 2019-09-18 | 2019-09-18 | Metal plate pin adjusting assembly process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910882715.7A CN110640402A (en) | 2019-09-18 | 2019-09-18 | Metal plate pin adjusting assembly process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110640402A true CN110640402A (en) | 2020-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910882715.7A Pending CN110640402A (en) | 2019-09-18 | 2019-09-18 | Metal plate pin adjusting assembly process |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203847538U (en) * | 2014-05-30 | 2014-09-24 | 湖南莲港紧固件有限公司 | Full-hexagonal-type riveting nut |
| CN105750829A (en) * | 2014-12-17 | 2016-07-13 | 重庆界威模具股份有限公司 | Sheet metal processing technology |
| CN106391973A (en) * | 2016-11-15 | 2017-02-15 | 江阴市勤丰金属制品有限公司 | Hot riveting forming technology and forming tooling |
| CN206918020U (en) * | 2017-06-12 | 2018-01-23 | 武汉光谷机电科技有限公司 | A kind of Self-Clinching Standoffs |
| CN108161451A (en) * | 2017-12-20 | 2018-06-15 | 昆山威特亿模具有限公司 | Punching die with pressure riveting mechanism |
-
2019
- 2019-09-18 CN CN201910882715.7A patent/CN110640402A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203847538U (en) * | 2014-05-30 | 2014-09-24 | 湖南莲港紧固件有限公司 | Full-hexagonal-type riveting nut |
| CN105750829A (en) * | 2014-12-17 | 2016-07-13 | 重庆界威模具股份有限公司 | Sheet metal processing technology |
| CN106391973A (en) * | 2016-11-15 | 2017-02-15 | 江阴市勤丰金属制品有限公司 | Hot riveting forming technology and forming tooling |
| CN206918020U (en) * | 2017-06-12 | 2018-01-23 | 武汉光谷机电科技有限公司 | A kind of Self-Clinching Standoffs |
| CN108161451A (en) * | 2017-12-20 | 2018-06-15 | 昆山威特亿模具有限公司 | Punching die with pressure riveting mechanism |
Non-Patent Citations (2)
| Title |
|---|
| 葛振杰等: "《铆螺母在机车上的应用技术》", 《电力机车与城规车辆》 * |
| 高子林: "《薄板件螺母压铆工艺及强度试验》", 《金属加工(热加工)》 * |
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Application publication date: 20200103 |