CN115008761A - Plastic pulse hot riveting mechanism - Google Patents
Plastic pulse hot riveting mechanism Download PDFInfo
- Publication number
- CN115008761A CN115008761A CN202210654196.0A CN202210654196A CN115008761A CN 115008761 A CN115008761 A CN 115008761A CN 202210654196 A CN202210654196 A CN 202210654196A CN 115008761 A CN115008761 A CN 115008761A
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- riveting
- assembly
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- 230000007246 mechanism Effects 0.000 title claims abstract description 38
- 229920003023 plastic Polymers 0.000 title claims abstract description 35
- 239000004033 plastic Substances 0.000 title claims abstract description 35
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims description 14
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 16
- RVCKCEDKBVEEHL-UHFFFAOYSA-N 2,3,4,5,6-pentachlorobenzyl alcohol Chemical compound OCC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl RVCKCEDKBVEEHL-UHFFFAOYSA-N 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000008646 thermal stress Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 13
- 238000007493 shaping process Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005491 wire drawing Methods 0.000 description 2
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
- B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
- B29C65/30—Electrical means
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention discloses a plastic pulse hot riveting mechanism, which comprises: the output end of the servo motor is connected with the servo module, and the servo module drives the tooling plate to move up and down; the servo module penetrates through and is fixed on a mechanism frame cross beam, and the lower end of the servo module is connected with an upper plate of the tooling plate; the guide assembly penetrates through and is fixed on a mechanism frame cross beam, the lower end of the guide assembly is connected with an upper plate of the tooling plate, and the tooling plate can be kept horizontal and can move up and down; the tooling plate group is formed into a frame structure with an upper plate and a lower plate, and a press riveting assembly is fixed on the bottom surface of the lower plate; the jacking assembly is formed right below the press riveting assembly and is used for jacking the product to be close to the press riveting assembly. According to the invention, by adopting a mode of combining pulse hot riveting and riveting point air cooling, the risk of influence of thermal stress of components on the PCBA due to continuous high-temperature hot air action of hot air cold riveting on the PCBA is avoided, the processing procedure is optimized, the production capacity is improved, the product forming effect is good, the tool design is simple, the forming beat is fast, and the forming quality is good.
Description
Technical Field
The invention relates to tooling equipment, in particular to a plastic pulse hot riveting mechanism.
Background
The automobile industry has developed the evolution of replacing steel with plastic, the global automobile industry at present, especially in the field of cars, the proportion of plastic in the whole automobile material is over 80%, many automobile parts are all made of plastic material shells, especially for electronic parts, the inner parts of the electronic parts are usually PCBA structures, the shells are packaged by plastic, and the common processes are assembly by processes of screwing, buckling, hot riveting and the like to form plastic parts.
The plastic part is assembled by assembling through a hot air cold riveting process mode in the prior art, the process is that hot air is used for heating a product structure riveting column through a metal pipe, plastic is subjected to high-temperature software, then a metal processing riveting head is used, the softened plastic riveting column is subjected to cold riveting and forming at normal temperature, the steps are carried out in the processing process, hot air softening treatment is carried out firstly, and then the metal head is subjected to cold riveting. The hot air temperature is generally set at the high temperature of 280 plus 320 ℃, when hot air acts on the PCBA, components on the PCBA are easily influenced by the high temperature of the hot air, the components on the PCBA have thermal stress risks, the welding quality of the components is influenced, the whole process is complex and complicated in machining procedures, the control requirements on the hot air temperature and the hot air time are high, and the adjustable process parameter window is narrow. When a plurality of and different structure riveting columns structurally appear in same product, it is higher to hot runner's design and metal riveting head frock designing requirement, often because of the unreasonable hot-blast cold quality of riveting that leads to of hot runner design is poor, like the quality requirement mushroom head, become the dune type behind the actual shaping, the flat type etc, the hot runner design is unreasonable, lead to the structure riveting column to be heated unevenly, the cold not shaping of riveting, the flash that collapses appears in the place of being heated too high, cross the riveting, plastics riveting column wire drawing scheduling problem.
By adopting the pulse hot riveting process, the temperature can be raised to 260 ℃ within 1.2 seconds by the electric pulse during actual production, and the welding quality risk caused by the influence of hot air on components on the PCBA and the influence of influence on the thermal stress of the components is effectively solved. In the original hot air cold riveting, after the plastic structure riveting column of the product is softened by hot air, the metal cold riveting is used for forming, and the process is complicated. The pulse hot riveting is directly used on the hot riveting head, the hot riveting head is directly formed, the hot riveting head is cooled quickly through air after forming, the hot riveting wire drawing problem is prevented, the process is simple, and the beat is fast. The hot-blast metal pipe that passes through of current cold riveting carries out hot plastic softening to the product, and wherein the frock pipeline is more difficult to design, and hot-blast difficult control, and last high temperature, and the heat that acts on PCBA is big, and the product shaping is poor after the cold riveting of cold riveting head, and the shaping rear surface is not smooth.
Disclosure of Invention
In this summary, a series of simplified form concepts are introduced that are simplifications of the prior art in this field, which will be described in further detail in the detailed description. This summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
The invention aims to provide a novel plastic pulse hot riveting mechanism which can directly heat a rivet head without hot air in pulse hot riveting.
In order to solve the technical problem, the invention provides a plastic pulse hot riveting mechanism, which comprises:
the output end of the servo motor 1 is connected with the servo module 2, and the servo motor drives the tooling plate to move up and down through the servo module 2;
the servo module 2 penetrates through and is fixed on a cross beam of the mechanism frame 6, and the lower end of the servo module is connected with an upper plate 4 of the tooling plate;
the guide assembly 3 penetrates through and is fixed on a cross beam of the mechanism frame 6, the lower end of the guide assembly is connected with an upper plate 4 of the tooling plate, and the tooling plate can be kept horizontal and can move up and down;
the tooling plate group is formed into a frame structure with an upper plate 4 and a lower plate 5, and a press riveting assembly 18 is fixed on the bottom surface of the lower plate 5;
and a jacking assembly 19 formed right below the press riveting assembly 18 and used for jacking the product close to the press riveting assembly 18.
Optionally, the plastic pulse hot riveting mechanism is further improved, and the plastic pulse hot riveting mechanism further comprises:
and the displacement sensor 7 is connected to the lower plate 5 of the tooling plate and is used for detecting the position change of the press riveting assembly 18 when the product is formed.
Alternatively, the plastic pulse hot riveting mechanism is further improved, the tooling plate group is formed into a rectangular frame, and the upper plate 4 and the lower plate 5 are formed into a rectangle.
Optionally, the plastic pulse hot riveting mechanism is further improved, and the mechanism frame 6 is formed into a portal frame structure;
optionally, the plastic pulse hot riveting mechanism is further improved, and the guide assembly 3 comprises:
the guide shaft sleeves are respectively fixed on the upper plates 4 of the tooling plates at the two sides of the servo module 2;
and the guide bearing penetrates through the guide shaft sleeve and can move up and down in the guide shaft sleeve.
Alternatively, the plastic impulse hot riveting mechanism is further improved, and the press riveting assembly 18 comprises:
a riveting point air cooling interface 8, wherein a hot riveting point height adjusting piece 9 is connected below the riveting point air cooling interface;
the upper end of the riveting point height adjusting piece 9 penetrates through a through hole at the upper end of the riveting point mounting base body 10 and is limited by the through hole, and the lower end of the riveting point height adjusting piece is connected with the sliding base body 13;
the sliding base body 13 is connected to the side wall of the riveting point mounting base body 10 below the riveting point height adjusting piece 9 in a sliding mode;
the elastic resetting piece 11 is sleeved on the riveting point height adjusting piece 9 between the riveting point mounting base body 10 and the sliding base body 13;
an insulating pad 14 fixed below the sliding base 13;
a hot-riveting metal block 16 fixed below the insulating pad 14;
a hot rivet head 17 fixed below the hot rivet metal block 16;
and the temperature sensor 12 is fixed on the side wall of the riveting point mounting base body 10 on the opposite side of the sliding base body 13, is used for collecting the temperature of the hot riveting head 17, and is connected with a pulse power supply through signals.
Optionally, the plastic pulse hot riveting mechanism is further improved, and the riveting point height adjusting part 9 comprises:
the lower end of the adjusting column is connected with the top of the sliding base body 13, the upper end of the adjusting column penetrates through a through hole in the upper end of the riveting point mounting base body 10, and threads are formed on the adjusting column above the limiting protrusion;
the limiting protrusion is formed on the adjusting column above the through hole;
an adjustment nut formed on the adjustment post having threads.
According to the invention, the risk of influence of thermal stress of components on the PCBA due to continuous high-temperature hot air action of hot air cold riveting on the PCBA is avoided by adopting a mode of combining pulse hot riveting and riveting point air cooling, the process flow is optimized, plastic riveting columns are softened by continuous high-temperature hot air in the prior art, then cold riveting forming is carried out by adopting a metal head, pulse heating is directly optimized, direct hot riveting forming is carried out, the process is simplified, the process beat is reduced, the production efficiency is improved, the beat is reduced to 5.8 seconds from 9.5 seconds, the production capacity is improved, the product forming effect is good, the tool design is simple, the forming beat is fast, and the forming quality is good.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification. The drawings are not necessarily to scale, however, and may not be intended to accurately reflect the precise structural or performance characteristics of any given embodiment, and should not be construed as limiting or restricting the scope of values or properties encompassed by exemplary embodiments in accordance with the invention. The invention will be described in further detail with reference to the following detailed description and accompanying drawings:
fig. 1 is a schematic view of the overall structure of the present invention.
Description of the reference numerals
The servo-module (2) is provided with a servo-module,
guide assembly 3
Upper plate 4 of tooling plate
Lower plate 5 of tooling plate
Riveting point air cooling connector 8
Hot riveting point height adjusting part 9
Rivet point mounting base 10
Temperature sensor 12
Sliding base 13
Hot riveted metal block 16
A jacking assembly 20.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and technical effects of the present invention will be fully apparent to those skilled in the art from the disclosure in the specification. The invention is capable of other embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the general spirit of the invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. The exemplary embodiments of the invention described below may be embodied in many different forms and should not be construed as limited to the specific embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the technical solutions of these exemplary embodiments to those skilled in the art.
A first embodiment;
the invention provides a plastic pulse hot riveting mechanism, which comprises:
the output end of the servo motor 1 is connected with the servo module 2, and the servo motor drives the tooling plate to move up and down through the servo module 2;
the servo module 2 penetrates through and is fixed on a cross beam of the mechanism frame 6, and the lower end of the servo module is connected with an upper plate 4 of the tooling plate;
the guide assembly 3 penetrates through and is fixed on a cross beam of the mechanism frame 6, the lower end of the guide assembly is connected with an upper plate 4 of the tooling plate, and the tooling plate can be kept horizontal and can move up and down;
the tooling plate group is formed into a frame structure with an upper plate 4 and a lower plate 5, and a press riveting assembly 18 is fixed on the bottom surface of the lower plate 5;
and a jacking assembly 19 formed right below the press riveting assembly 18 and used for jacking the product close to the press riveting assembly 18.
It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may be present. In contrast, when an element is referred to as being "directly connected" or "directly coupled" to another element, there are no intervening elements present. Like reference numerals refer to like elements throughout the drawings.
A second embodiment;
the invention provides a plastic pulse hot riveting mechanism, which comprises:
the output end of the servo motor 1 is connected with the servo module 2, and the servo motor drives the tooling plate to move up and down through the servo module 2;
the servo module 2 penetrates through and is fixed on a cross beam of the mechanism frame 6, and the lower end of the servo module is connected with an upper plate 4 of the tooling plate;
the guide assembly 3 penetrates through and is fixed on a cross beam of the mechanism frame 6, the lower end of the guide assembly is connected with an upper plate 4 of the tooling plate, and the tooling plate can be kept horizontal and can move up and down;
the tooling plate group is formed into a frame structure with an upper plate 4 and a lower plate 5, and a press riveting assembly 18 is fixed on the bottom surface of the lower plate 5;
the jacking assembly 19 is formed right below the riveting assembly 18 and is used for jacking the product to be close to the riveting assembly 18;
and the displacement sensor 7 is connected to the lower plate 5 of the tooling plate and is used for detecting the position change of the press riveting assembly 18 when the product is formed.
Wherein the tooling plate set is formed as a rectangular frame, the upper plate 4 and the lower plate 5 thereof are formed as rectangles, and the mechanism frame 6 thereof is formed as a gantry structure.
Spatially relative terms, such as "below … …," "above … …," "below," "above … …," "above," and the like, may be used herein for ease of description to describe one element or feature's spatial relationship to another element or feature as illustrated in the figures. An exemplary embodiment according to the present invention is described with reference to schematic cross-sectional views of preferred embodiments (and intermediate structures) as an exemplary embodiment. As such, variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, are to be expected. Thus, the exemplary embodiments should not be construed as limited to the particular shapes of regions illustrated herein but are to include deviations in shapes that result, for example, from manufacturing.
A third embodiment;
the invention provides a plastic pulse hot riveting mechanism, which comprises:
the output end of the servo motor 1 is connected with the servo module 2, and the servo motor drives the tooling plate to move up and down through the servo module 2;
the servo module 2 penetrates through and is fixed on a cross beam of the mechanism frame 6, and the lower end of the servo module is connected with an upper plate 4 of the tooling plate;
guide assembly 3, it passes and fixes on 6 crossbeams of mechanism frame, and the upper plate 4 of frock board is connected to its lower extreme, and it enables the frock board and keeps the level and can reciprocate simultaneously, includes:
the guide shaft sleeves are respectively fixed on the upper plates 4 of the tooling plates at the two sides of the servo module 2;
the guide bearing penetrates through the guide shaft sleeve and can move up and down in the guide shaft sleeve;
the tooling plate group is formed into a frame structure with an upper plate 4 and a lower plate 5, and a press riveting assembly 18 is fixed on the bottom surface of the lower plate 5;
the clinch assembly 18 includes: a riveting point air cooling interface 8, wherein a hot riveting point height adjusting piece 9 is connected below the riveting point air cooling interface;
the upper end of the riveting point height adjusting piece 9 penetrates through a through hole at the upper end of the riveting point mounting base body 10 and is limited by the through hole, and the lower end of the riveting point height adjusting piece is connected with the sliding base body 13;
the sliding base body 13 is connected to the side wall of the riveting point mounting base body 10 below the riveting point height adjusting piece 9 in a sliding mode;
the elastic reset piece 11, which is a spring in this embodiment, is sleeved on the rivet point height adjusting piece 9 between the rivet point mounting base 10 and the sliding base 13;
the rivet point height adjusting member 9 includes:
the lower end of the adjusting column is connected with the top of the sliding base body (13), the upper end of the adjusting column penetrates through a through hole at the upper end of the riveting point mounting base body 10, and threads are formed on the adjusting column above the limiting protrusion;
the limiting protrusion is formed on the adjusting column above the through hole;
an adjustment nut formed on the adjustment post having threads;
an insulating pad 14 fixed below the sliding base 13;
a hot-riveting metal block 16 fixed below the insulating pad 14;
a hot rivet head 17 fixed below the hot rivet metal block 16;
the temperature sensor 12 is fixed on the side wall of the riveting point mounting base body 10 on the opposite side of the sliding base body 13, is used for collecting the temperature of the hot riveting head 17, and is connected with a pulse power supply through signals;
a jacking assembly 19 formed right below the press riveting assembly 18 and used for jacking the product close to the press riveting assembly 18;
and the displacement sensor 7 is connected to the lower plate 5 of the tooling plate and is used for detecting the position change of the press riveting assembly 18 when the product is formed.
Wherein the tooling plate set is formed as a rectangular frame, the upper plate 4 and the lower plate 5 thereof are formed as rectangles, and the mechanism frame 6 thereof is formed as a gantry structure.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The present invention has been described in detail with reference to the specific embodiments and examples, but these are not intended to limit the present invention. Many variations and modifications can be made by one skilled in the art without departing from the principles of the invention, which should also be considered as the scope of the invention.
Claims (7)
1. A plastic pulse hot riveting mechanism is characterized by comprising:
the output end of the servo motor (1) is connected with the servo module (2) and drives the tooling plate to move up and down through the servo module (2);
the servo module (2) penetrates through and is fixed on a cross beam of the mechanism frame (6), and the lower end of the servo module is connected with an upper plate (4) of the tooling plate;
the guide assembly (3) penetrates through and is fixed on a cross beam of the mechanism frame (6), the lower end of the guide assembly is connected with an upper plate (4) of the tooling plate, and the guide assembly can enable the tooling plate to keep horizontal and move up and down;
the tooling plate group is formed into a frame structure with an upper plate (4) and a lower plate (5), and a press riveting assembly (18) is fixed on the bottom surface of the lower plate (5);
and the jacking assembly (19) is formed right below the press riveting assembly (18) and is used for jacking the product close to the press riveting assembly (18).
2. The plastic impulse hot riveting mechanism of claim 1, further comprising:
and the displacement sensor (7) is connected to the lower plate (5) of the tooling plate and is used for detecting the position change of the press riveting assembly (18) during product forming.
3. The plastic impulse hot riveting mechanism of claim 1, wherein: the tooling plate group is formed into a rectangular frame, and the upper plate (4) and the lower plate (5) thereof are formed into a rectangle.
4. The plastic impulse hot riveting mechanism of claim 1, wherein: the mechanism frame (6) is formed into a portal frame structure.
5. A plastic impulse hot riveting apparatus according to claim 1, characterized in that the guide assembly (3) comprises:
the guide shaft sleeves are respectively fixed on the upper plates (4) of the tooling plates at the two sides of the servo module (2);
and the guide bearing penetrates through the guide shaft sleeve and can move up and down in the guide shaft sleeve.
6. A plastic impulse hot riveting apparatus according to claim 1, characterized in that the pressure riveting assembly (18) comprises:
a riveting point air cooling interface (8), wherein a hot riveting point height adjusting piece (9) is connected below the riveting point air cooling interface;
the upper end of the riveting point height adjusting piece (9) penetrates through a through hole at the upper end of the riveting point mounting base body (10) and is limited by the through hole, and the lower end of the riveting point height adjusting piece is connected with the sliding base body (13);
the sliding base body (13) is connected to the side wall of the riveting point mounting base body (10) below the riveting point height adjusting piece (9) in a sliding mode;
the elastic resetting piece (11) is sleeved on the riveting point height adjusting piece (9) between the riveting point mounting base body (10) and the sliding base body (13);
an insulating pad (14) fixed below the sliding base (13);
a hot-riveting metal block (16) fixed below the insulating cushion block (14);
a hot rivet head (17) fixed below the hot rivet metal block (16);
and the temperature sensor (12) is fixed on the side wall of the riveting point mounting base body (10) at the opposite side of the sliding base body (13), is used for collecting the temperature of the heat riveting head (17), and is connected with a pulse power supply in a signal mode.
7. A plastic impulse hot riveting mechanism according to claim 6, characterized in that the riveting point height adjusting piece (9) comprises:
the lower end of the adjusting column is connected with the top of the sliding base body (13), the upper end of the adjusting column penetrates through a through hole at the upper end of the riveting point mounting base body (10), and threads are formed on the adjusting column above the limiting protrusion;
the limiting protrusion is formed on the adjusting column above the through hole;
an adjustment nut formed on the adjustment post having threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210654196.0A CN115008761A (en) | 2022-06-09 | 2022-06-09 | Plastic pulse hot riveting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210654196.0A CN115008761A (en) | 2022-06-09 | 2022-06-09 | Plastic pulse hot riveting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115008761A true CN115008761A (en) | 2022-09-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210654196.0A Pending CN115008761A (en) | 2022-06-09 | 2022-06-09 | Plastic pulse hot riveting mechanism |
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| Country | Link |
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| CN (1) | CN115008761A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011148261A (en) * | 2010-01-25 | 2011-08-04 | Seidensha Electronics Co Ltd | Heat caulking device, and heat caulking process |
| CN105291422A (en) * | 2014-05-30 | 2016-02-03 | 常州星宇车灯股份有限公司 | Plastic hot riveting device for automobile lamp |
| CN212219355U (en) * | 2020-03-08 | 2020-12-25 | 苏州市美好精密机械有限公司 | Pulse plastic hot riveting gun |
-
2022
- 2022-06-09 CN CN202210654196.0A patent/CN115008761A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011148261A (en) * | 2010-01-25 | 2011-08-04 | Seidensha Electronics Co Ltd | Heat caulking device, and heat caulking process |
| CN105291422A (en) * | 2014-05-30 | 2016-02-03 | 常州星宇车灯股份有限公司 | Plastic hot riveting device for automobile lamp |
| CN212219355U (en) * | 2020-03-08 | 2020-12-25 | 苏州市美好精密机械有限公司 | Pulse plastic hot riveting gun |
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