CN110314996B - Shock absorber expanding and riveting tool and method - Google Patents
Shock absorber expanding and riveting tool and method Download PDFInfo
- Publication number
- CN110314996B CN110314996B CN201910452269.6A CN201910452269A CN110314996B CN 110314996 B CN110314996 B CN 110314996B CN 201910452269 A CN201910452269 A CN 201910452269A CN 110314996 B CN110314996 B CN 110314996B
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- positioning plate
- positioning
- riveted
- riveting
- fixing frame
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
Abstract
A shock absorber expanding riveting tool and a shock absorber expanding riveting method comprise a clamping positioning frame, a base plate and an expanding riveting rod; the clamping positioning frame comprises a positioning column, a wrench, a fastening screw, a fixing frame, an upper positioning plate and a lower positioning plate; the positioning column penetrates through the upper positioning plate to be fixed on the fixing frame, the lower positioning plate is installed on the fixing frame, 1 positioning groove is respectively machined in the upper positioning plate and the lower positioning plate, the size and the depth of each positioning groove are matched with the external contour dimension of the piece to be riveted, and the coaxiality requirement of the piece to be riveted is guaranteed through the positioning grooves of the upper positioning plate and the lower positioning plate; the riveting tool comprises a lower positioning plate, a fastening screw, an upper positioning plate, a lower positioning plate and a rivet, wherein the lower positioning plate is provided with a positioning groove; and arranging the assembled components on a base plate, and sequentially passing the expansion riveting rod through the fixing frame and the round holes of the upper positioning plate from the upper part of the fixing frame downwards to implement expansion riveting on the to-be-riveted parts.
Description
Technical Field
The invention relates to a shock absorber expanding and riveting tool, which is applied to expanding and riveting of shock absorbers in the structural member assembly industry and belongs to the field of structural member assembly process equipment.
Background
At present, a damping expansion rivet does not have a special assembling and positioning tool, a to-be-riveted part is clamped tightly by means of a large pliers, then one person holds the to-be-riveted part, and the expansion rivet is formed by the one person. The method needs to be carried out by two persons, and one person cannot independently complete the expanding riveting work; the riveting device is easy to adjust in place due to the locking pliers, so that the to-be-riveted piece is not riveted tightly, and the to-be-riveted piece automatically falls off; if the pressing force of the locking pliers is too large, the surfaces of the column sleeve and the gasket are easily crushed and deformed, the phenomenon of bending is caused, and the part to be riveted is easily scrapped, so that unnecessary loss is caused.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the defects of the prior art are overcome, the shock absorber expanding riveting tool and the shock absorber expanding riveting method are overcome, the defect that the to-be-riveted piece is damaged and scrapped due to the fact that no reasonable clamping and positioning tool exists in the expanding riveting process of the to-be-riveted piece is overcome, and rapid and accurate expanding riveting of the to-be-riveted piece is achieved.
The technical solution of the invention is as follows: a shock absorber expanding riveting tool comprises a clamping positioning frame, a base plate and an expanding riveting rod;
the clamping positioning frame comprises a positioning column, a wrench, a fastening screw, a fixing frame, an upper positioning plate and a lower positioning plate; the positioning column penetrates through the upper positioning plate to be fixed on the fixing frame, the lower positioning plate is installed on the fixing frame, 1 positioning groove is respectively machined in the upper positioning plate and the lower positioning plate, the size and the depth of each positioning groove are matched with the external contour dimension of the piece to be riveted, and the coaxiality requirement of the piece to be riveted is guaranteed through the positioning grooves of the upper positioning plate and the lower positioning plate; the riveting tool comprises a lower positioning plate, a fastening screw, an upper positioning plate, a lower positioning plate and a rivet, wherein the lower positioning plate is provided with a positioning groove; and arranging the assembled components on a base plate, and sequentially passing the expansion riveting rod through the fixing frame and the round holes of the upper positioning plate from the upper part of the fixing frame downwards to implement expansion riveting on the to-be-riveted parts.
Preferably, the fastening screws are at least two and are symmetrically distributed about the round hole on the fixing frame.
Preferably, the fixing frame comprises an upper plane and a lower plane which are parallel to each other and a vertical surface at one side, wherein the upper plane is provided with round holes for expansion riveting, fastening screw holes distributed around the round holes and positioning column mounting holes, and the lower plane is provided with round holes for mounting the lower positioning plate; the vertical face is of a hollow structure, size scale marks are arranged on two sides of the vertical face, and the tightening screw is screwed according to the size scale marks, so that the size consistency of the expanding rivet can be guaranteed.
Preferably, the lower locating plate be ladder cylinder type structure, the small circle post of below ladder be used for with the lower plane of mount be connected, set up the constant head tank above the big cylinder post of ladder for the piece is treated in the installation.
Preferably, the small stepped cylinder and the circular hole in the lower plane are installed in a transition fit mode.
Preferably, the locating slot diameter size of the upper locating plate and the lower locating plate slightly is greater than the overall dimension of the piece to be riveted, when the piece to be riveted is put in, the unilateral fitting clearance is 0.05 mm-0.1 mm, the depth of the locating slot is less than the thickness of the piece to be riveted, and the diameter size of the locating slot of the upper locating plate and the diameter size of the locating slot of the lower locating plate are ensured to be consistent.
Preferably, the fixing frame on set up the mounting hole that is used for placing the spanner, the mounting hole be the through-hole, through-hole below internally mounted fixed column fixes the spanner that inserts in the through-hole, fixed column below installation end cap, during the use, directly draw the spanner afterbody of dragging, can follow it and take out in the through-hole.
Preferably, the wrench is made of nylon bars; the positioning column, the fastening screw, the fixing frame, the upper positioning plate, the lower positioning plate, the base plate and the rivet expansion rod are made of steel materials which are subjected to quenching and chemical oxidation treatment.
Preferably, the upper positioning plate and the lower positioning plate are manufactured into series of products according to different pieces to be riveted, and the positioning columns are unscrewed and screwed to replace the corresponding series of products during use.
Preferably, when the positioning column is inserted into the upper positioning plate, the unilateral clearance is 0.02-0.05 mm, and the upper positioning plate can slide up and down along the positioning column.
A method for performing shock absorber expanding riveting by using the tool is realized by the following steps:
loosening the fastening screw, sliding the upper positioning plate upwards along the positioning column, and installing the piece to be riveted into the positioning groove of the lower positioning plate;
the upper positioning plate slides downwards along the positioning column, fastening screws are sequentially screwed in a clockwise direction by 1-1.5P (thread pitch) until the fastening screws are screwed, and the assembly sizes of the four-corner pieces to be riveted are adjusted to be consistent according to scale marks in the front of the fixing frame, so that assembly of the assembly is completed;
and horizontally arranging the components on a base plate, and sequentially carrying out expanding riveting on the to-be-riveted pieces by virtue of an expanding riveting rod. After the expansion riveting is formed, the fastening screw is loosened, and the to-be-riveted part formed by the expansion riveting can be detached.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the invention, the special upper positioning plate and the special lower positioning plate are designed according to the structural characteristics of the piece to be riveted, and after the piece to be riveted is arranged, the positioning groove limits the horizontal displacement of the piece to be riveted, so that the fixing and protecting effects of the piece to be riveted are realized.
(2) When the clamping and positioning frame is assembled, the positioning column penetrates through the upper positioning plate and is arranged on the fixing frame, and the positioning groove of the upper positioning plate is concentric with the positioning groove of the lower positioning plate, so that the coaxiality requirement of a part to be riveted is ensured.
(3) After the parts to be riveted are assembled, the assembly size of the parts to be riveted is ensured to be consistent by cross adjusting the fastening screws according to the scale lines of the fixing frame, so that the consistency of the riveting size is ensured.
(4) After the piece to be riveted is assembled, the fastening screws are uniformly adjusted, so that the surfaces of the gasket and the column sleeve are uniformly stressed, the problem of part deformation caused by uneven stress is effectively solved, and the surface quality of the piece to be riveted is ensured.
Drawings
FIG. 1 is a schematic view of the overall structure of a shock absorber expansion riveting tool;
FIG. 2 is a schematic view of a clamping and positioning frame of the shock absorber expanding and riveting tool;
FIG. 3 is a schematic view of the assembly and expansion riveting of a member to be riveted;
FIG. 4 is a schematic view of a partial assembly of a member to be riveted;
FIG. 5 is a schematic view of wrench installation and fixation of the shock absorber expanding and riveting tool;
fig. 6 is a photograph showing a deformation of a part according to a conventional method.
Detailed Description
At present, the bumper shock absorber rises to rivet and need adopt two locking pliers will wait to rivet the piece and press from both sides tightly, then rises to rivet the shaping with the help of rising the riveting rod to it, and this work needs to be carried out by double operation: one person holds the piece to be riveted by hand and one person conducts expansion riveting. During clamping, the phenomenon that the piece to be riveted is not riveted tightly and automatically falls off is easily caused due to the fact that the locking pliers are not adjusted in place; if the pressing force of the locking pliers is too large, the surface of a to-be-riveted piece is easily crushed, deformed and bent, and after the phenomenon occurs, a shock absorber is easily loosened in a subsequent test of an aerospace whole machine product, so that the shock absorption effect is failed. Thereby causing the reliability of the aerospace complete machine product to be reduced.
The invention is a set of technical solutions determined by the applicant through a large number of researches and experiments aiming at the problems, and as shown in fig. 1, the shock absorber expanding and riveting tool comprises a clamping and positioning frame 1, a base plate 2 and an expanding and riveting rod 3, after the clamping and positioning frame 1 and a to-be-riveted part are assembled, the to-be-riveted part is horizontally placed on the base plate 2, and then expanding and riveting forming are carried out on the to-be-riveted part by means of the expanding and riveting rod 3.
As shown in fig. 2, the clamping and positioning frame 1 includes a positioning column 11, a wrench 12, a fastening screw 13, a fixing frame 14, an upper positioning plate 15, a lower positioning plate 16, a fixing column 17, and a plug 18. The positioning column 11 penetrates through the upper positioning plate 15 and is screwed on the fixing frame 14, the lower positioning plate 16 is installed on the fixing frame 14, 1 positioning groove is respectively processed on the upper positioning plate 15 and the lower positioning plate 16, the size and the depth of each positioning groove are matched with the external contour dimension of the piece to be riveted, and the coaxiality requirement of the piece to be riveted is ensured through the positioning grooves of the upper positioning plate and the lower positioning plate; the wrench 12 is inserted into the mounting hole of the fixing frame 14. This mounting hole is the through-hole, and through-hole below internally mounted fixed column fixes the spanner that inserts in the through-hole, and the end cap is installed to fixed column below, during the use, directly draws the spanner afterbody of dragging, can follow it and take out in the through-hole.
The backing plate 2, the expanding riveting rod 3, the fixing frame 14, the positioning column 11, the fastening screw 13, the upper positioning plate 15 and the lower positioning plate 16 are all made of steel, and after parts are machined and formed, quenching treatment and chemical oxidation treatment are carried out, so that the strength and the rigidity of the damping expanding riveting tool are improved.
The fixing frame 14 comprises an upper plane, a lower plane and a vertical plane at one side, wherein the upper plane is provided with a round hole for expansion riveting, fastening screw holes distributed around the round hole and a positioning column mounting hole, and the lower plane is provided with a round hole for mounting a lower positioning plate; the vertical face is of a hollow structure, size scale marks are arranged on two sides of the vertical face, and the fastening screws 13 are screwed according to the size scale marks, so that the size consistency of the expansion rivets can be guaranteed.
The lower locating plate is of a stepped cylindrical structure, the lower stepped small cylinder is used for being connected with the lower plane of the fixing frame, the locating groove is formed in the upper portion of the stepped large cylinder and used for installing a to-be-riveted part, and the stepped small cylinder and the lower plane are installed in a transition fit mode.
When the positioning column 11 is inserted into the upper positioning plate 15, the unilateral assembly clearance is guaranteed to be 0.02-0.05 mm, and the upper positioning plate can slide up and down along the positioning column. And the diameter size of the positioning groove of the upper positioning plate 15 and the lower positioning plate 16 is slightly larger than the overall dimension of the piece to be riveted, when the piece to be riveted is put in, the unilateral assembly clearance is 0.05 mm-0.1 mm, the depth of the positioning groove is smaller than the thickness of the piece to be riveted, and the diameter size of the positioning groove of the upper positioning plate 15 and the diameter size of the positioning groove of the lower positioning plate 16 are ensured to be consistent.
Fig. 3 is a wrench installation schematic diagram of the shock absorber expansion riveting tool. The fixing column 17 is made of a non-metal nylon bar. The fixing post 17 is inserted into the bottom hole of the bottom surface of the fixing frame 14, and then the plug 18 is screwed into the fixing frame 14 to tightly press the fixing post. The wrench is inserted into the fixing post 17 from the round hole on the fixing frame 14, and the wrench 12 is clamped by the plastic deformation of the fixing post 17. When in use, the tail part of the wrench 12 can be directly pulled and taken out.
The working principle of the invention is shown in fig. 4 and 5: loosening the fastening screws 13, sliding the upper positioning plate 15 upwards along the positioning columns 11, installing the to-be-riveted parts into the clamping and positioning frame 1, then sliding the upper positioning plate 15 downwards along the positioning columns 11, screwing the fastening screws 13 in a cross mode, adjusting the assembling sizes of the to-be-riveted parts at four corners to be consistent according to scale lines in front of the fixing frame, horizontally placing the to-be-riveted parts on the backing plate 2, and sequentially implementing expanding riveting on the to-be-riveted parts by means of the expanding riveting rods 3. After the expansion riveting is formed, the fastening screw 13 is loosened, and the to-be-riveted part formed by the expansion riveting can be detached.
With the help of the expanding riveting tool, expanding riveting work of the piece to be riveted can be independently completed by one person, and quick clamping of the piece to be riveted can be realized by sliding the upper positioning plate. The riveting tool is used for riveting the to-be-riveted part in a rising manner, the to-be-riveted part is subjected to appearance inspection and size detection, and the results are shown in the following table:
the invention has not been described in detail in part of the common general knowledge of those skilled in the art.
Claims (10)
1. A shock absorber expanding riveting tool is characterized by comprising a clamping positioning frame, a base plate and an expanding riveting rod;
the clamping positioning frame comprises a positioning column, a wrench, a fastening screw, a fixing frame, an upper positioning plate and a lower positioning plate; the positioning column penetrates through the upper positioning plate to be fixed on the fixing frame, the lower positioning plate is installed on the fixing frame, the upper positioning plate and the lower positioning plate are respectively provided with a positioning groove, the size and the depth of each positioning groove are matched with the external contour dimension of the piece to be riveted, and the coaxiality requirement of the piece to be riveted is ensured through the positioning grooves of the upper positioning plate and the lower positioning plate; the riveting tool comprises a lower positioning plate, a fastening screw, an upper positioning plate, a lower positioning plate and a rivet, wherein the lower positioning plate is provided with a positioning groove; placing the assembled components on a base plate, and performing expansion riveting on a to-be-riveted piece by a expansion riveting rod which sequentially penetrates through circular holes of the fixed frame and the upper positioning plate from the upper part of the fixed frame to the lower part;
the fixing frame comprises an upper plane, a lower plane and a vertical surface at one side, wherein the upper plane is provided with a round hole for expansion riveting, fastening screw holes distributed around the round hole and a positioning column mounting hole; the vertical face is of a hollow structure, size scale marks are arranged on two sides of the vertical face, and the fastening screw is screwed according to the size scale marks, so that the size consistency of the expanding rivet is guaranteed.
2. The shock absorber expanding riveting tool according to claim 1, characterized in that: the fastening screws are at least two and are symmetrically distributed around the round hole on the fixing frame.
3. The shock absorber expanding riveting tool according to claim 1, characterized in that: the lower positioning plate is of a stepped cylindrical structure, a lower stepped small cylinder is used for being connected with the lower plane of the fixing frame, and a positioning groove is formed above a stepped large cylinder and used for installing a part to be riveted.
4. The shock absorber expanding riveting tool according to claim 3, characterized in that: the small stepped cylinder and the circular hole in the lower plane are installed in a transition fit mode.
5. The shock absorber expanding riveting tool according to claim 1, characterized in that: the locating slot diameter size of top board and bottom plate slightly be greater than and wait to rivet a overall dimension, when waiting to rivet a piece and put into, unilateral fit-up gap is 0.05mm ~ 0.1mm, the locating slot degree of depth is less than and waits to rivet a piece thickness, and top board and bottom plate locating slot diameter size guarantee unanimity.
6. The shock absorber expanding riveting tool according to claim 1, characterized in that: the fixing frame on set up the mounting hole that is used for placing the spanner, the mounting hole be the through-hole, through-hole below internally mounted fixed column fixes the spanner that inserts in the through-hole, fixed column below installation end cap, during the use, directly draws the spanner afterbody of dragging, can follow it and take out in the through-hole.
7. The shock absorber expanding riveting tool according to claim 1 or 6, characterized in that: the wrench is made of nylon bars; the positioning column, the fastening screw, the fixing frame, the upper positioning plate, the lower positioning plate, the base plate and the rivet expansion rod are made of steel materials which are subjected to quenching and chemical oxidation treatment.
8. The shock absorber expanding riveting tool according to claim 1, characterized in that: the upper positioning plate and the lower positioning plate are manufactured into series products according to different parts to be riveted, and the positioning columns are unscrewed and screwed to replace the corresponding series products during use.
9. The shock absorber expanding riveting tool according to claim 1, characterized in that: when the positioning column is inserted into the upper positioning plate, the unilateral clearance is 0.02-0.05 mm, and the upper positioning plate can slide up and down along the positioning column.
10. A method for performing shock absorber expansion riveting by using the tool of any one of claims 1 to 9, which is characterized by comprising the following steps:
loosening the fastening screw, sliding the upper positioning plate upwards along the positioning column, and installing the piece to be riveted into the positioning groove of the lower positioning plate;
the upper positioning plate slides downwards along the positioning column, fastening screws are sequentially screwed by 1-1.5P in the clockwise direction until the fastening screws are screwed, and the assembly sizes of the four-corner pieces to be riveted are adjusted to be consistent according to the scale marks in the front of the fixing frame, so that assembly of the assembly is completed;
horizontally placing the assembly on a base plate, and performing expanding riveting on the pieces to be riveted in sequence by virtue of an expanding riveting rod; after the expansion riveting is formed, the fastening screw is loosened, and the to-be-riveted part formed by the expansion riveting can be detached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910452269.6A CN110314996B (en) | 2019-05-28 | 2019-05-28 | Shock absorber expanding and riveting tool and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910452269.6A CN110314996B (en) | 2019-05-28 | 2019-05-28 | Shock absorber expanding and riveting tool and method |
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| Publication Number | Publication Date |
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| CN110314996A CN110314996A (en) | 2019-10-11 |
| CN110314996B true CN110314996B (en) | 2021-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910452269.6A Active CN110314996B (en) | 2019-05-28 | 2019-05-28 | Shock absorber expanding and riveting tool and method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112108575B (en) * | 2020-08-14 | 2022-04-05 | 东风商用车有限公司 | Riveting limiting system and riveting limiting method for vibration damping structure of ECU (electronic control Unit) bracket |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4864713A (en) * | 1988-06-07 | 1989-09-12 | Gemcor Engineering Corp. | Method and apparatus for positioning tooling and riveting |
| CN2803570Y (en) * | 2005-06-23 | 2006-08-09 | 万向钱潮股份有限公司 | Appts. for riveting mould of viberation damper |
| CN106670793B (en) * | 2016-12-08 | 2019-02-15 | 重庆大江智防特种装备有限公司 | A kind of auxiliary device and method for the assembly of armored combat vehicle damper |
| CN106826301A (en) * | 2017-04-14 | 2017-06-13 | 扬力集团股份有限公司 | A kind of L-shaped cylindrical workpiece quick clamping tool and its end thread hole forming method |
| CN206981705U (en) * | 2017-07-20 | 2018-02-09 | 上海新朋金属制品有限公司 | A kind of frock that presses of depthkeeping degree |
| CN207915335U (en) * | 2018-02-10 | 2018-09-28 | 吴江宝胜精密五金电子有限公司 | Shaft press-fit tool |
| CN208321977U (en) * | 2018-05-28 | 2019-01-04 | 宁波继峰科技有限公司 | A kind of automotive hinge bracket rivet tooling |
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