CN104827250A - Production process for hinge plate on rear door of light truck driving cab - Google Patents
Production process for hinge plate on rear door of light truck driving cab Download PDFInfo
- Publication number
- CN104827250A CN104827250A CN201510215732.7A CN201510215732A CN104827250A CN 104827250 A CN104827250 A CN 104827250A CN 201510215732 A CN201510215732 A CN 201510215732A CN 104827250 A CN104827250 A CN 104827250A
- Authority
- CN
- China
- Prior art keywords
- light truck
- hinge plate
- cab
- door hinge
- round bar
- 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.)
- Granted
Links
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D3/00—Hinges with pins
- E05D3/02—Hinges with pins with one pin
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D5/00—Construction of single parts, e.g. the parts for attachment
- E05D5/02—Parts for attachment, e.g. flaps
- E05D5/06—Bent flaps
- E05D5/062—Bent flaps specially adapted for vehicles
Abstract
The invention discloses a production process for a hinge plate on a rear door of a light truck driving cab. The production process comprises the following steps: preparing materials, machining chamfers, bending, welding a round bar and machining the two end faces of the round bar; machining a pin shaft hole and machining two threaded holes in the round bar. The production process has the beneficial effects that the influences of resilience and thermal deformation on the product size accuracy in bending and welding processes are eliminated; the pin shaft hole is machined after the round bar is welded, so that the influence of welding on the position of the pin shaft hole is further lowered, the accuracy of a product is greatly increased, and convenience is brought to subsequent operation; the standard in a machining process is uniform, so that the accuracy is increased; the product yield is increased from 50 percent to 100 percent. The original required product inspection is changed into current casual inspection, and the casual inspection rate is 1 percent, so that time is saved, and the cost is reduced.
Description
Technical field
The present invention relates to and rush welding technology field, particularly a kind of production technology of cab of light truck rear-door hinge plate.
Background technology
As shown in Figure 1, its front end is Welding Structure to the product of general light truck rear-door hinge plate, and rear portion is cold drawing stamping parts.Its general processing technology is: → chamfering → press-bending → thread mill drilling → welding front-end shaft sleeve of getting the raw materials ready.Due to the impact of product its resilience and thermal deformation in press-bending and welding process, make product size precision very unstable.For solving the deficiency of existing technique, a kind of new technological method for processing is proposed.
Summary of the invention
For solving the deficiency of present technique, embodiments provide a kind of production technology of cab of light truck rear-door hinge plate.
Processing technology thinking of the present invention is as follows: → chamfering → press-bending of getting the raw materials ready (with location, both sides) → replace axle sleeve welding → with location, both sides with round bar, the pin hole of the constant processing front end of processing front end both ends of the surface → locate → and with the screwed hole of the pin hole of front end location processing flap.
In order to realize foregoing invention object, the invention provides a kind of production technology of cab of light truck rear-door hinge plate, comprising the following steps:
(1) get the raw materials ready: according to the size Selection cuboid steel plate of light truck rear-door hinge plate;
(2) chamfering: use plain-milling machine at each angle chamfering of steel plate;
(3) bend: steel plate is at one end bent; Adopt forcing press, in unitary mould, carry out brake forming;
(4) round bar is welded on the steel plate leading inside of press-bending;
(5) both ends of the surface of round bar are processed; Adopt Double-sided end milling, be processed into plane, round bar both ends of the surface are concordant with steel plate;
(6) on round bar, pin shaft hole is processed; Adopt broach(ing) machine or Boring machine tooling pin axis hole;
(7) two screwed holes are processed: adopt tapping machine to process two screw threads.
In described step (2) chamfering, chamfering is 1.5X45 degree.
During described step (3) is bent, with location, two of cuboid steel plate long limits during press-bending.
In described step (3), pin shaft hole diameter is 8 millimeters.
Described step (7) is processed in two screwed holes, and screwed hole is M8 screwed hole, and described two screwed holes are positioned at the centre position on the long limit of flap two, and first screwed hole distance non-bending one end edge-perpendicular distance is 13-16mm, and two screwed hole center distance are 90-100mm.
Described first screwed hole distance non-bending one end edge-perpendicular distance is 15mm, and two screwed hole center distance are 95mm.
When described step (7) processes two screwed holes, locate with pin shaft hole.
In order to better realize goal of the invention, the cab of light truck rear-door hinge plate that the present invention also provides a kind of production technology of cab of light truck rear-door hinge plate to be processed into.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is: to eliminate in press-bending and welding process resilience and thermal deformation to the impact of product size precision, first weld round bar aft-loaded airfoil and go out pin shaft hole, further reduce the impact of welding on pin shaft hole position, greatly improve the precision of product, facilitate subsequent operation.By tool locating, simultaneously by stepping up to prevent distortion, unifying datum in process, thus improve precision.Product percent of pass is increased to 100% by 50%.The every part of original product must be examined, and existing product changes sampling observation into, and sampling observation rate is 1%, saves time, and reduces costs.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment of the present invention cab of light truck rear-door hinge plate.
Fig. 2 is the front view of cuboid steel plate of getting the raw materials ready.
Fig. 3 is the top view of Fig. 2.
Fig. 4 is the schematic diagram after Fig. 2 chamfering.
Fig. 5 is the top view of Fig. 4.
Fig. 6 carries out press-bending schematic diagram in unitary mould.
Fig. 7 is schematic diagram after the press-bending of Fig. 5.
Fig. 8 is the schematic diagram that round bar is welded on the steel plate front end after press-bending
Fig. 9 is the top view after Fig. 8 round bar processing both ends of the surface.
Figure 10 is the schematic diagram of tooling pin axis hole again process both ends of the surface on the round bar of Fig. 8 after.
Figure 11 is the top view of Figure 10.
Figure 12 is with the schematic diagram of pin shaft hole location processing two screwed hole.
Wherein, Reference numeral is: 1, track; 2, alignment pin; 3, screwed hole.
Detailed description of the invention
For the problem affecting dimensional accuracy of product its resilience and thermal deformation in press-bending and welding process, the invention provides a kind of production technology of cab of light truck rear-door hinge plate, processing step comprises 1. and gets the raw materials ready.2. chamfering.3. be that positioning datum bends with both sides.4. replace axle sleeve welding with round bar.5. be positioning datum with both sides, processing front end both ends of the surface.6. locate the pin hole of constant processing front end.7. with the screwed hole of the pin hole of front end location processing flap.
Embodiment 1
See Fig. 1-12, a kind of production technology of cab of light truck rear-door hinge plate, comprises the following steps:
(1) get the raw materials ready: according to the size Selection cuboid steel plate of light truck rear-door hinge plate;
(2) chamfering: use plain-milling machine at each angle chamfering of steel plate, chamfering is 1.5X45 degree;
(3) bend: steel plate is at one end bent; Adopt forcing press, in unitary mould, carry out brake forming; With location, two of cuboid steel plate long limits during press-bending.
(4) round bar is welded on the steel plate leading inside of press-bending;
(5) both ends of the surface of round bar are processed; Adopt Double-sided end milling, be processed into plane, round bar both ends of the surface are concordant with steel plate;
(6) on round bar, pin shaft hole is processed; Adopt broach(ing) machine or Boring machine tooling pin axis hole, pin shaft hole diameter is 8 millimeters;
(7) two screwed holes are processed: adopt tapping machine to process two screw threads.Screwed hole is M8 screwed hole, and described two screwed holes are positioned at the centre position on the long limit of flap two, and first screwed hole distance non-bending one end edge-perpendicular distance is 15mm, and two screwed hole center distance are 95mm.
When processing two screwed holes, locate with pin shaft hole.Adopt the alignment pin location in frock, alignment pin can move forward and backward along track, and clamping flap, accurately locates.
Before and after process modification, flap quality versus is in table one.
Table one the inventive method and conventional machine processing method quality versus
Can find out the great Improving The Quality of Products of processing technology of the present invention by table one, improving product qualification rate, product percent of pass is increased to 100% by 50%.The every part of original product must be examined, and existing product changes sampling observation into, and sampling observation rate is 1%, has saved the time greatly, has improve efficiency, reduces cost of labor.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a production technology for cab of light truck rear-door hinge plate, comprises the following steps:
(1) get the raw materials ready: according to the size Selection cuboid steel plate of light truck rear-door hinge plate;
(2) chamfering: use plain-milling machine at each angle chamfering of steel plate;
(3) bend: steel plate is at one end bent; Adopt forcing press, in unitary mould, carry out brake forming;
(4) round bar is welded on the steel plate leading inside of press-bending;
(5) both ends of the surface of round bar are processed; Adopt Double-sided end milling, be processed into plane, round bar both ends of the surface are concordant with steel plate;
(6) on round bar, pin shaft hole is processed; Adopt broach(ing) machine or Boring machine tooling pin axis hole;
(7) two screwed holes are processed: adopt tapping machine to process two screw threads.
2. the production technology of cab of light truck rear-door hinge plate according to claim 1, is characterized in that, in described step (2) chamfering, chamfering is 1.5X45 degree.
3. the production technology of cab of light truck rear-door hinge plate according to claim 1, is characterized in that, during described step (3) is bent, with location, two of cuboid steel plate long limits during press-bending.
4. the production technology of cab of light truck rear-door hinge plate according to claim 1, is characterized in that, in described step (3), pin shaft hole diameter is 8 millimeters.
5. the production technology of cab of light truck rear-door hinge plate according to claim 1, it is characterized in that, described step (7) is processed in two screwed holes, screwed hole is M8 screwed hole, described two screwed holes are positioned at the centre position on the long limit of flap two, first screwed hole distance non-bending one end edge-perpendicular distance is 13-16mm, and two screwed hole center distance are 90-100mm.
6. the production technology of cab of light truck rear-door hinge plate according to claim 5, is characterized in that, described first screwed hole distance non-bending one end edge-perpendicular distance is 15mm, and two screwed hole center distance are 95mm.
7. the production technology of cab of light truck rear-door hinge plate according to claim 1, is characterized in that, when described step (7) processes two screwed holes, locates with pin shaft hole.
8. the cab of light truck rear-door hinge plate be processed into according to the production technology of the arbitrary described cab of light truck rear-door hinge plate of claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510215732.7A CN104827250B (en) | 2015-04-30 | 2015-04-30 | Production process for hinge plate on rear door of light truck driving cab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510215732.7A CN104827250B (en) | 2015-04-30 | 2015-04-30 | Production process for hinge plate on rear door of light truck driving cab |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104827250A true CN104827250A (en) | 2015-08-12 |
| CN104827250B CN104827250B (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510215732.7A Active CN104827250B (en) | 2015-04-30 | 2015-04-30 | Production process for hinge plate on rear door of light truck driving cab |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107962350A (en) * | 2017-11-13 | 2018-04-27 | 昆山市福玛精密钣金有限公司 | More basic point formula branch piece high accuracy processing technologys |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1602422A (en) * | 1924-07-05 | 1926-10-12 | Absolute Adjustable Hinge Comp | Process of manufacturing hinges |
| US1688955A (en) * | 1928-10-23 | Method of manueacttjailto covebied-joiktt hihg-e members | ||
| GB2004780A (en) * | 1977-10-05 | 1979-04-11 | Scharwaechter Gmbh Co Kg | Improvements in or relating to the manufacture of pivotal components for example, hinge leaves |
| CN101684705A (en) * | 2008-09-28 | 2010-03-31 | 茵科门控（珠海保税区）有限公司 | Hinge and production process thereof |
| CN103402670A (en) * | 2010-12-17 | 2013-11-20 | 小川弘士 | Method for manufacturing door hinge for automobile |
-
2015
- 2015-04-30 CN CN201510215732.7A patent/CN104827250B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1688955A (en) * | 1928-10-23 | Method of manueacttjailto covebied-joiktt hihg-e members | ||
| US1602422A (en) * | 1924-07-05 | 1926-10-12 | Absolute Adjustable Hinge Comp | Process of manufacturing hinges |
| GB2004780A (en) * | 1977-10-05 | 1979-04-11 | Scharwaechter Gmbh Co Kg | Improvements in or relating to the manufacture of pivotal components for example, hinge leaves |
| CN101684705A (en) * | 2008-09-28 | 2010-03-31 | 茵科门控（珠海保税区）有限公司 | Hinge and production process thereof |
| CN103402670A (en) * | 2010-12-17 | 2013-11-20 | 小川弘士 | Method for manufacturing door hinge for automobile |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107962350A (en) * | 2017-11-13 | 2018-04-27 | 昆山市福玛精密钣金有限公司 | More basic point formula branch piece high accuracy processing technologys |
| CN107962350B (en) * | 2017-11-13 | 2019-08-20 | 昆山市福玛精密钣金有限公司 | More basic point formula branch piece high-precision processing technologys |
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| Publication number | Publication date |
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| CN104827250B (en) | 2017-05-10 |
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