CN116944403A - Blind rivet mounting tool - Google Patents
Blind rivet mounting tool Download PDFInfo
- Publication number
- CN116944403A CN116944403A CN202210390644.0A CN202210390644A CN116944403A CN 116944403 A CN116944403 A CN 116944403A CN 202210390644 A CN202210390644 A CN 202210390644A CN 116944403 A CN116944403 A CN 116944403A
- Authority
- CN
- China
- Prior art keywords
- clamping
- gripping
- block
- teeth
- setting tool
- 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.)
- Pending
Links
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 229910001182 Mo alloy Inorganic materials 0.000 claims description 3
- HWSFXRVYHOGTFX-UHFFFAOYSA-N [C].[Mo].[Ni].[Cr] Chemical compound [C].[Mo].[Ni].[Cr] HWSFXRVYHOGTFX-UHFFFAOYSA-N 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 7
- 238000003754 machining Methods 0.000 abstract description 6
- 238000010008 shearing Methods 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 9
- 208000035874 Excoriation Diseases 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 5
- 238000013459 approach Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- OGSYQYXYGXIQFH-UHFFFAOYSA-N chromium molybdenum nickel Chemical compound [Cr].[Ni].[Mo] OGSYQYXYGXIQFH-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/02—Riveting procedures
- B21J15/04—Riveting hollow rivets mechanically
- B21J15/043—Riveting hollow rivets mechanically by pulling a mandrel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/10—Riveting machines
- B21J15/105—Portable riveters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/10—Riveting machines
- B21J15/16—Drives for riveting machines; Transmission means therefor
- B21J15/26—Drives for riveting machines; Transmission means therefor operated by rotary drive, e.g. by electric motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/10—Riveting machines
- B21J15/30—Particular elements, e.g. supports; Suspension equipment specially adapted for portable riveters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/10—Riveting machines
- B21J15/30—Particular elements, e.g. supports; Suspension equipment specially adapted for portable riveters
- B21J15/32—Devices for inserting or holding rivets in position with or without feeding arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/10—Riveting machines
- B21J15/30—Particular elements, e.g. supports; Suspension equipment specially adapted for portable riveters
- B21J15/32—Devices for inserting or holding rivets in position with or without feeding arrangements
- B21J15/34—Devices for inserting or holding rivets in position with or without feeding arrangements for installing multiple-type tubular rivets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/38—Accessories for use in connection with riveting, e.g. pliers for upsetting; Hand tools for riveting
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
The invention provides a blind rivet mounting tool, which comprises a shell, a driving unit, a pulling unit, a clamping unit and a nose part, wherein the driving unit, the pulling unit, the clamping unit and the nose part are contained in the shell, the clamping unit comprises a plurality of clamping blocks which are sequentially arranged at an angle around the pulling direction, the inner side of the clamping block facing to a rivet core bar comprises a plurality of clamping teeth, the clamping teeth positioned at the front section of the clamping block are at least partially removed in advance, the stress concentration or shearing force is formed by the fact that the core bar of the blind rivet is not always completely parallel to an axis R and the unequal acting force caused by actual machining tolerance or design in the pulling riveting process, the service life of the clamping block is prolonged, and the repair rate of the rivet mounting tool is greatly reduced.
Description
Technical Field
The present invention relates to a fastening device, and more particularly, to a blind rivet (blind rivet) setting tool.
Background
Blind rivet setting tools are commonly used for setting fastening blind rivet fasteners, such as blind rivets, blind rivet nuts, etc. The installation and fastening process of blind rivets is known.
Referring to fig. 1 and 2, a blind rivet gun as disclosed in chinese patent application CN110834060a is suitable for installing a blind rivet 9 (shown in fig. 1), and comprises a housing 2, a driving unit 3, a pulling unit 4, a clamping unit 5, a nose part 6, and a sensing unit 7. The pulling unit 4 comprises a screw 42 extending along the second axis R2 and a connecting piece 43 connected to the screw 42. The clamping unit 5 comprises a clamping sleeve 51 connected to the connecting member 43, a plurality of clamping blocks 52 arranged in an angular sequence about the second axis R2, a central rod 53, a clamping spring 54, and a stop member 55. The clamping sleeve 51 has a surrounding wall 511 and a clamping opening 512 defined by the surrounding wall 511. The clamping block 52 is disposed in the surrounding wall 511 and adjacent to the clamping opening 512. The clamping spring 54 can generate an elastic force so that the central rod 53 is constantly held against the clamping block 52. The clamping block 52 can pass through the clamping opening 512 when being abutted by the central rod 53 and can move towards the second axis R2 to clamp the blind rivet 9. The gripping block 52 has a plurality of gripping teeth or ribs on its interior that are constructed and arranged to promote engagement with a mandrel (not shown).
When approaching the end position (as shown in fig. 2), the clamping spring 54 pushes against the head 531 of the central rod 53, so that the head 531 pushes against the clamping block 52, and the clamping block 52 moves toward the clamping opening 512 and passes through the clamping sleeve 51 from the clamping opening 512. When the clamping block 52 is pushed by the head 531 to move toward the clamping opening 512, the clamping block 52 gradually approaches the second axis R2, so that the blind rivet 9 can be clamped.
However, the back of the clamping block 52 is supported in a surface contact manner on the clamping sleeve 51 near the end position. When the blind rivet fastener is installed, a part of the pulling force generated is used to form the closing head of the blind rivet fastener, and another part of the pulling force is used to generate the clamping force by means of which the clamping block 52 bears against the mandrel. As a result, the clamping teeth of the inside of the clamping block 52 for engaging the mandrel are subjected to a relatively large pressure, in particular, the clamping teeth corresponding to the front end position of the clamping sleeve 51, which is subjected to the greatest load, and therefore, it often occurs that the clamping teeth of the inside of the clamping block 52 are rapidly worn or broken, resulting in an improper use of the installation tool.
Disclosure of Invention
The invention aims to provide a blind rivet installation tool which can effectively solve the problem that the installation tool cannot be normally used due to damage or abrasion of clamping teeth in a clamping block of a clamping unit, and reduce the repair rate of the installation tool.
According to one embodiment of the invention, a blind rivet setting tool comprises a housing, a drive unit accommodated in the housing, a pulling unit, a clamping unit and a nose part, wherein the clamping unit comprises a clamping sleeve connected to the pulling unit, a plurality of clamping blocks and a clamping spring, the clamping blocks are sequentially arranged at an angle around the pulling direction, the clamping sleeve is provided with a surrounding wall and a clamping opening defined by the surrounding wall, the back of the clamping block is abutted against the inner wall of the surrounding wall, the inner side of the clamping block facing to a rivet core rod comprises a plurality of clamping teeth for improving the clamping of the clamping block to the rivet core rod, the clamping spring is configured to enable the clamping block to move between an initial position and a final position in the clamping sleeve, when the clamping block is located at the final position, the front section of the clamping block protrudes out of the clamping opening, the rear section of the clamping block is kept in the clamping sleeve, and the clamping teeth located at the front section of the clamping block are removed in advance at least partially.
According to a preferred embodiment of the invention, the gripping teeth of the front section of the gripping block are removed entirely.
According to another preferred embodiment of the invention, the gripping teeth of the front section of the gripping block are partially removed, the gripping teeth of the front section of the gripping block having a tooth height which is smaller than the tooth height of the gripping teeth of the rear section of the gripping block.
According to a further preferred embodiment of the invention, the gripping teeth on the front section of the gripping block, which are closest to the gripping opening, are at least partially or completely removed in the end position of the gripping block.
Preferably, the clamping teeth are ribs which are arranged uniformly on the clamping block substantially in the pulling direction, the ribs comprising a top edge which is substantially perpendicular to the centre line of the core rod, and a first side surface which extends from the top edge towards the clamping tooth root at a first angle to the pulling direction towards the driving unit and a second side surface which extends from the top edge towards the clamping tooth root at a second angle to the pulling direction towards the nose portion.
More preferably, the first side and the second side form smoothly transitioned rounded corners at the root portion of the gripping teeth.
More preferably, the first angle is greater than the second angle.
The top edge of the clamping teeth of the rear section of the clamping block is at least partially in surface contact with the outer peripheral surface of the core rod.
According to the embodiment of the invention, the clamping block is made of medium-carbon nickel-chromium-molybdenum alloy steel with the nickel content of about 1.6-2.0%.
According to the embodiment of the invention, the clamping block is subjected to heat treatment, the depth of a hardening layer is 0.5-0.8mm, and the surface hardness is not less than HV680
When the blind rivet mounting tool is used for rivet mounting operation, the core bar of the blind rivet is clamped by the clamping block, and when the blind rivet mounting tool is in a final position, the front section of the clamping block protrudes out of the clamping opening, and the front section of the clamping block can play a role in avoiding air by removing the clamping teeth of the front section of the clamping block in advance at least partially, so that stress concentration or shearing force formed by unequal acting forces caused by actual machining tolerance or design in the pulling riveting process of the clamping sleeve and the blind rivet on the front section of the clamping block is reduced or removed, thereby avoiding early abrasion or fracture of the clamping teeth on the inner side of the clamping block, prolonging the service life of the clamping block, and greatly reducing the repair rate of the rivet mounting tool.
Drawings
The embodiments will be better understood from the following detailed description when read with the accompanying drawings. It is emphasized that the various features are not necessarily drawn to scale. In fact, the dimensions may be arbitrarily increased or decreased for clarity of discussion. In the drawings, like reference numerals refer to like elements.
FIG. 1 is a schematic cross-sectional view of a prior art rivet setting tool in an initial position;
FIG. 2 is a schematic cross-sectional view of the prior art rivet setting tool shown in FIG. 1 in an end position;
FIG. 3 is a partially exploded perspective view of one embodiment of the rivet setting tool of the present invention;
FIG. 4 is a schematic partial cross-sectional view of one embodiment of the rivet setting tool shown in FIG. 3 in its initial position;
FIG. 5 is a schematic partial cross-sectional view of one embodiment of the rivet setting tool shown in FIG. 3 in its end position;
FIG. 6 is a schematic view of the gripping block of the rivet setting tool of one embodiment of the invention;
FIG. 7 is a schematic perspective view of a gripping block of the rivet setting tool of the embodiment shown in FIG. 6;
FIG. 8 is an enlarged partial schematic view of the gripping block of the rivet setting tool of the illustrated embodiment shown in FIG. 7;
FIG. 9 is a schematic perspective view of a gripping block of a rivet setting tool, according to another embodiment of the invention;
FIG. 10 is a schematic perspective view of a gripping block of a rivet setting tool, according to yet another embodiment of the invention.
Detailed Description
Next, a rivet setting tool according to the present invention will be described with reference to fig. 3 to 10.
Referring to fig. 3 to 5, an embodiment of the blind rivet setting tool of the present invention is adapted for setting a blind rivet 7. The blind rivet setting tool 1 comprises a housing 2, a drive unit 3 accommodated in the housing, a pulling unit 4, a clamping unit 5 and a nose 6. The pulling unit 4, the gripping unit 4 and the nose 6 define an axis R extending in the pulling direction.
The clamping unit 5 comprises a clamping sleeve 50 connected to the pulling unit 4, a plurality of clamping blocks 51 and clamping springs 54 which are sequentially arranged at an angle around the pulling direction, the clamping sleeve 50 is provided with a surrounding wall 52 and a clamping opening 53 defined by the surrounding wall 52, the back of the clamping block 51 is abutted against the inner wall of the surrounding wall 52, and the inner side of the clamping block 51 facing the rivet core rod 8 comprises a plurality of clamping teeth 55 for improving the clamping of the clamping block 51 on the rivet core rod. Preferably, the clamping teeth 55 are ribs which are uniformly distributed on the clamping block along the pulling direction. The clamping spring 54 is configured to enable the clamping block 51 to move within the clamping sleeve 50 between an initial position and a final position. When the clamping block 51 is in its end position, as shown in fig. 4, the front section 511 of the clamping block protrudes from the clamping opening 53, while the rear section 512 of the clamping block remains in the clamping sleeve 50.
Referring to fig. 3, the clamping sleeve 50 is adjacent to the nose 6 when the clamping unit of the rivet setting tool of the present invention is in its initial position. The clamping block 51 abuts against one end of the nose portion 6 without passing through the clamping sleeve 51 from the clamping opening 32. The clamping blocks 51 are located in a clamping space enclosed by the surrounding wall 52 and are spaced apart radially from the axis R, so that the core pin 8 of the blind rivet 7 can be inserted between the clamping blocks 51 through the axial bore of the nose 6. The rear side of the clamp block 52 compresses the clamp spring 54 against a center rod 56. In the initial position, the clamping teeth 55 on the inner side of the clamping block 51 exert no clamping force on the core rod 8 in the radial direction.
The gripping sleeve 50 can be moved along the axis R by the screw of the pulling unit and reaches this end position. Near this end position (as shown in fig. 5), the clamping spring 54 pushes against the head of the central rod 56, which in turn pushes the central rod 56 against the clamping block 51, so that the clamping block 51 moves in the direction of the clamping opening 53 and protrudes from the clamping opening 53 through the clamping sleeve 50. When the clamping block 51 is pushed by the central rod 56 to move in the direction of the clamping opening 53, the clamping block 51 gradually approaches the axis R as the aperture of the surrounding wall 52 gradually decreases to the clamping opening 53, and the clamping teeth 55 at least partially contact and clamp the stem of the blind rivet. In the approach end position, the back of the clamping block 51 is supported in a surface-contact manner on the inner wall of the surrounding wall 52 of the clamping sleeve 50. When the blind rivet fastener is installed, the pulling direction is as shown in fig. 5, a part of the pulling force generated being used to form the closing head of the blind rivet 7, and another part of the pulling force being used to generate a clamping force by means of which the clamping block 51 bears against the mandrel 8 of the blind rivet 7. The core rod 8 of the blind rivet 7 is gripped and pulled back and finally broken and riveted to the plate.
Referring to fig. 5, the clamping unit 5 of the rivet setting tool is in its end position, the front section 511 of the clamping block 51 protrudes from the clamping opening 53, and the rear section 512 of the clamping block is held in the clamping sleeve 50. Ideally, the inner side of the front section 511 and the inner side of the rear section 512 should be completely parallel to the axis R, i.e., the front section 511 and the rear section 512 should apply a uniform clamping force to the circumferential surface of the core rod 8 in the end position, regardless of the initial position or the end position of the clamping block 51. However, since the stem 8 of the blind rivet 7 is not always perfectly parallel to the axis R during the rivet pulling, and errors may occur during the machining or assembly process, and wear of the material, the front section 511 of the clamping block protruding from the clamping opening 53 will have a higher clamping force in the radial direction, in particular the critical clamping tooth 551 closest to the clamping opening 53, both being subjected to a radial clamping force and to a pulling force in the pulling direction. Thus, the gripping teeth of the front section 511 of the gripping block, and in particular the critical gripping teeth 551 nearest the gripping mouth 53, are most susceptible to wear or breakage. In order to avoid the abrasion or breakage of the clamping teeth, the rivet setting tool of the present invention removes the clamping teeth located at the front section of the clamping block in advance at least partially to play a role of clearance for reducing or removing stress concentration or shearing force caused by the clamping sleeve 50 and the core bar of the blind rivet not always being completely parallel to the axis R during the blind rivet due to unequal forces caused by actual machining tolerances or design.
According to a preferred embodiment of the invention, referring to fig. 6 and 7, the gripping teeth of the front section 511 of the gripping block 51 are removed entirely, for example by grinding off the gripping teeth of the front section, so that the inner side of the front section 511 of the gripping block 51 is substantially planar or curved substantially parallel to a part of the circumference of the core rod 8. Since the rear section 512 of the clamping block 51 is still in the clamping sleeve 50 and the thickness of the rear section 512 in the radial direction is also higher than the front section 511, the rear section 512 has a higher tensile strength, and the clamping teeth on the inner side of the rear section 512 are also sufficient to ensure that the mandrel of the rivet is clamped during the rivet pulling process. The advantage of completely grinding off the clamping teeth of the front section is that the processing technology is simple and the pulling force required by the blind rivet in the installation engineering is not affected.
Referring to fig. 4 to 7, the clamping teeth 55 are ribs uniformly distributed on the clamping block 51 substantially along the pulling direction. Preferably, as shown in fig. 7 and 8, the rib includes a top edge 550 substantially perpendicular to a center line of the core pin, and a first side 551 extending from the top edge 550 toward the root of the gripping tooth at a first angle a with the pulling direction and a second side 552 extending from the top edge 550 toward the root of the gripping tooth at a second angle b with the pulling direction. More preferably, the first angle a is greater than the second angle b, such that the clamping teeth 55 are easily inserted into a core bar to increase force and reduce wear. More preferably, the first side 551 and the second side 552 form smoothly transitioned rounded corners at the root of the gripping teeth to reduce the risk of breakage. More preferably, the top edges 550 of the gripping teeth of the rear section of the gripping block are in surface contact with at least part of the outer circumferential surface of the core rod 8. Therefore, the top edge 550 is not a ridge line, but a slightly gentle curved surface, and when the top edge 550 is clamped on the outer circumferential surface of the core rod, the top edge 550 and the surface of the core rod form at least partial surface contact, so that the clamping teeth are less likely to be broken, and the abrasion degree of the top edge 550 is reduced.
Referring to fig. 9, according to another embodiment of the present invention, unlike the previous embodiment, the clamping teeth of the front section 511 of the clamping block 51 are not completely removed, but the clamping teeth of the front section 511 of the clamping block 51 are partially removed. As shown in fig. 9, the tooth heights of the clamping teeth of the front section 511 of the clamping block 51 are smaller than the tooth heights of the clamping teeth of the rear section 512 of the clamping block 51. In this way, the stress concentration or shearing forces due to unequal forces caused by the fact that the mandrel 8 of the blind rivet is not always perfectly parallel to the axis R and the actual machining tolerances or designs are avoided, the number of clamping teeth is maintained, and the forces distributed to each clamping tooth during the blind riveting process are more balanced.
According to a further preferred embodiment of the invention, as shown in fig. 10, in contrast to the previously shown embodiment, only the clamping teeth on the front section of the clamping block, which are closest to the clamping opening 513, are removed here, or are partially or completely removed. In the same way, the scheme of the embodiment not only avoids the stress concentration or shearing force caused by the fact that the core rod of the self-plugging rivet is not always completely parallel to the axis R and unequal acting force caused by actual machining tolerance or design, but also maintains the number of the clamping teeth, and is beneficial to more balanced stress of the clamping teeth in the riveting process. Moreover, as only one tooth closest to the clamping opening is removed, the abrasion resistance of the whole clamping block is higher, and the service life is longer.
In addition, in order to further improve the wear resistance of the gripping block and reduce the possibility of breakage of the gripping teeth, according to an embodiment of the present invention, the gripping block is made of a medium carbon nickel chromium molybdenum alloy steel having a nickel content of about 1.6-2.0%, for example, with the brand: SNCM439/SNCM447/SNCM431 steel. The steel is alloy steel containing higher proportion of nickel, can improve the strength and toughness of the alloy steel, and has good wear resistance. Meanwhile, the wear resistance of the clamping block can be greatly improved by carrying out proper heat treatment on the clamping block, for example, the depth of a hardening layer of the clamping block is 0.5-0.8mm after heat treatment, and the surface hardness is not less than HV680.
In summary, according to the blind rivet installation tool disclosed by the invention, by improving the structure of the clamping block and/or selecting more proper materials and processing technology, the rivet installation tool disclosed by the invention can be used for installing 70000 blind rivets without breaking clamping teeth, so that the repair rate of the installation tool is greatly reduced.
As previously mentioned, although in the description exemplary embodiments of the invention have been described with reference to the accompanying drawings, the invention is not limited to the above-described specific embodiments, but many other embodiments are possible, the scope of which should be defined by the claims and their equivalents.
Claims (10)
1. The utility model provides a rivet setting tool, includes the casing, hold in drive unit in the casing, pulling unit, clamping unit and nose, the clamping unit including connect in the clamping sleeve of pulling unit, a plurality of around pulling direction angle arrangement's grip block, and clamping spring, the clamping sleeve has around the wall, and by around the centre gripping mouth that the wall bound, the back of grip block support in around the inner wall of wall, the grip block includes a plurality of clamping teeth towards the inboard of rivet core bar for improve the grip of grip block to the rivet core bar, clamping spring is constructed so that the grip block can be in the internal initial position of clamping sleeve and end position are moved, when the grip block is located its end position, the anterior segment of grip block outstanding in the centre gripping mouth, the back end of grip block keeps in the clamping sleeve, its characterized in that, the clamping tooth that is located the anterior segment of grip block is got rid of by at least part in advance.
2. A rivet setting tool as defined in claim 1, wherein the gripping teeth of the front section of the gripping block are removed entirely.
3. A rivet setting tool as defined in claim 1, characterized in that the gripping teeth of the front section of the gripping block are partially removed, the gripping teeth of the front section of the gripping block having a tooth height that is smaller than the gripping teeth of the rear section of the gripping block.
4. A rivet setting tool as claimed in claim 1, in which, in the end position of the gripping block, the gripping teeth on the front section of the gripping block nearest the gripping mouth are at least partially or completely removed.
5. A rivet setting tool according to any one of claims 1 to 4, in which the gripping teeth are ribs arranged uniformly substantially in the pulling direction of the gripping block, the ribs comprising a top edge substantially perpendicular to the centre line of the core bar, and a first side towards the drive unit extending from the top edge at a first angle to the pulling direction towards the gripping tooth root and a second side towards the nose extending from the top edge at a second angle to the pulling direction towards the gripping tooth root.
6. A rivet setting tool as defined in claim 5, wherein the first side and the second side form smoothly transitioned fillets at the root of the gripping teeth.
7. The rivet setting tool of claim 5, wherein the first angle is greater than the second angle.
8. A rivet setting tool as defined in claim 5, characterized in that the top edges of the gripping teeth of the rear section of the gripping block are in surface contact with at least part of the outer peripheral surface of the core pin.
9. A rivet setting tool as claimed in any one of claims 1 to 8, in which the gripping block is made of medium carbon nickel chromium molybdenum alloy steel having a nickel content of about 1.6 to 2.0%.
10. A rivet setting tool as claimed in claim 9, characterized in that the gripping block is heat treated to a hardened depth of 0.5-0.8mm, the surface hardness not being less than HV680.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210390644.0A CN116944403A (en) | 2022-04-14 | 2022-04-14 | Blind rivet mounting tool |
| PCT/EP2023/058885 WO2023198537A1 (en) | 2022-04-14 | 2023-04-04 | Setting tool for blind rivet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210390644.0A CN116944403A (en) | 2022-04-14 | 2022-04-14 | Blind rivet mounting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116944403A true CN116944403A (en) | 2023-10-27 |
Family
ID=86227035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210390644.0A Pending CN116944403A (en) | 2022-04-14 | 2022-04-14 | Blind rivet mounting tool |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN116944403A (en) |
| WO (1) | WO2023198537A1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS532229B2 (en) * | 1973-04-10 | 1978-01-26 | ||
| US4936134A (en) * | 1989-08-11 | 1990-06-26 | Emhart Industries, Inc. | Rivet-setting tools and gripping jaws therefor |
| US7832074B2 (en) * | 2006-05-25 | 2010-11-16 | Gm Global Technology Operations, Inc. | Method for installation of blind rivets |
| CN110834060A (en) | 2018-08-15 | 2020-02-25 | 朝程工业股份有限公司 | Electric rivet gun |
-
2022
- 2022-04-14 CN CN202210390644.0A patent/CN116944403A/en active Pending
-
2023
- 2023-04-04 WO PCT/EP2023/058885 patent/WO2023198537A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023198537A1 (en) | 2023-10-19 |
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