FR2738514A1 - Thread=cutting attachment for cutting or stamping press - Google Patents
Thread=cutting attachment for cutting or stamping press Download PDFInfo
- Publication number
- FR2738514A1 FR2738514A1 FR9510741A FR9510741A FR2738514A1 FR 2738514 A1 FR2738514 A1 FR 2738514A1 FR 9510741 A FR9510741 A FR 9510741A FR 9510741 A FR9510741 A FR 9510741A FR 2738514 A1 FR2738514 A1 FR 2738514A1
- Authority
- FR
- France
- Prior art keywords
- gear
- cutting
- tap holder
- transmission mechanism
- press
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G3/00—Arrangements or accessories for enabling machine tools not specially designed only for thread cutting to be used for this purpose, e.g. arrangements for reversing the working spindle
- B23G3/005—Arrangements or accessories for enabling machine tools not specially designed only for thread cutting to be used for this purpose, e.g. arrangements for reversing the working spindle for enabling presses to be used for thread cutting
Abstract
Description
DISPOSITIF DE TARAUDAGE SUR PRESSE
La présente invention se rapporte à un dispositif automatique de taraudage sur presse, par exemple, sur presse à découper ou à emboutir.PRESS TAPPING DEVICE
The present invention relates to an automatic tapping device on a press, for example, on a cutting or stamping press.
On connaît déjà ce genre de dispositif et notamment oeux divulgués par les documents antérieurs EP 0 192 586, FR 2 495 979,
FR 2 317 992, FR 1 444 213, ou encore US 2 715 233, US 3 162 873.This type of device is already known and in particular the eyes disclosed by the prior documents EP 0 192 586, FR 2 495 979,
FR 2 317 992, FR 1 444 213, or US 2 715 233, US 3 162 873.
Tous les dispositifs antérieurs présentent un certain nombre d'inconvénients et notamment celui d'avoir une construction complexe, coûteuse et peu fiable. All the prior devices have a certain number of drawbacks, in particular that of having a complex, expensive and unreliable construction.
La présente invention propose un nouveau dispositif de taraudage sur presse dont le mouvement de rotation du ou des taraud(s) ainsi que son déplacement vertical selon son axe est obtenu par une cinématique uniquement basée sur une coopération de pignons et de système vis-écrou. The present invention provides a new tapping device on a press whose rotational movement of the tap (s) as well as its vertical displacement along its axis is obtained by kinematics solely based on a cooperation of pinions and screw-nut system.
D'autres caractéristiques et avantages de l'invention se dégageront de la description qui va suivre en regard des dessins annexés qui ne sont donnés qu'à titre d'exemples non limitatifs. Other characteristics and advantages of the invention will emerge from the description which follows with reference to the appended drawings which are given only by way of nonlimiting examples.
La figure 1 est une vue d'ensemble en coupes verticale et transversale du dispositif de l'invention. Figure 1 is an overall view in vertical and transverse sections of the device of the invention.
La figure 2 est une demie vue de dessus. Figure 2 is a half view from above.
II s'agit d'un dispositif de taraudage sur presse qui est apte à constituer, par exemple, un des éléments de travail d'un "outil à suivre" fixé sur cette presse et effectuant, sur des épreuves successives fixées sur une même bande, diverses autres opérations de découpe, d'emboutissage, etc. It is a tapping device on a press which is capable of constituting, for example, one of the working elements of a "tool to be followed" fixed on this press and performing, on successive tests fixed on the same strip. , various other cutting operations, stamping, etc.
En espèce, ce taraudeur a pour mission de tarauder un orifice qui est déjà pratiqué dans une plaque de tôle. In this case, this tapper has the mission of tapping an orifice which is already made in a sheet metal plate.
le dispositif de taraudage se compose de deux parties qui sont mobiles l'une par rapport à l'autre:
- un bloc principal (1) qui est monté sur le plateau inférieur fixe de la presse, et qui est donc lui-même fixe en position. Extérieurement, oe bloc (1) se présente sous la forme d'un carter étanche dont l'espace intérieur est, à l'instar d'un boîte à vitesses, rempli d'huile lubrifiante,
- une vis patronne (2) d'axe perpendiculaire aux plateaux de la presse, ayant pour fonction de transformer le mouvement de descente ou de montée de ce plateau supérieur mobile en un mouvement de rotation, respectivement dans un sens ou dans l'autre, d'un écrou rotatif (3) qui est monté sur deux paliers de roulement et qui est monté fixe en translation dans le bloc (1).the tapping device consists of two parts which are movable relative to each other:
- A main block (1) which is mounted on the fixed lower plate of the press, and which is therefore itself fixed in position. Externally, the block (1) is in the form of a sealed casing, the interior space of which, like a gearbox, is filled with lubricating oil,
a patron screw (2) with an axis perpendicular to the press plates, having the function of transforming the downward or upward movement of this movable upper plate into a rotational movement, respectively in one direction or the other, a rotary nut (3) which is mounted on two rolling bearings and which is mounted fixed in translation in the block (1).
Par ailleurs, à l'autre extrémité du bloc principal, il est prévu un porte-taraud (4) disposé pivotant autour de son axe vertical et mobile en translation verticale selon ce même axe. Furthermore, at the other end of the main block, a tap holder (4) is provided which is pivotally pivoted about its vertical axis and movable in vertical translation along this same axis.
le dispositif comprend des moyens cinématiques permettant à chaque descente du coulisseau de presse de provoquer la rotation du taraud ou de le déplacer en translation vers le bas selon un déplacement axial correspondant à la valeur d'un pas pour chaque tour effectué par ledit taraud. Selon l'invention, ces moyens cinématiques sont constitués essentiellement par des pignons. Ainsi, l'écrou rotatif (3) comprend un premier pignon (5a) entraînant un deuxième pignon (5b) entraînant un troisième pignon (5c) associé en rotation avec un quatrième pignon (5d) qui engrène avec un cinquième pignon (5e), associé en rotation à un sixième pignon (5f) et un septième pignon (5g). le sixième pignon (5f) entraînant un septième pignon (5g) provoquant la rotation du porte-taraud. the device comprises kinematic means allowing each descent of the press slide to cause the rotation of the tap or to move it in translation downwards according to an axial displacement corresponding to the value of one step for each revolution carried out by said tap. According to the invention, these kinematic means consist essentially of pinions. Thus, the rotary nut (3) comprises a first pinion (5a) driving a second pinion (5b) driving a third pinion (5c) associated in rotation with a fourth pinion (5d) which meshes with a fifth pinion (5e), associated in rotation with a sixth pinion (5f) and a seventh pinion (5g). the sixth pinion (5f) driving a seventh pinion (5g) causing the rotation of the tap holder.
Par ailleurs, le sixième pignon est aussi associé à un huitième pignon (5h) qui engrène avec un neuvième pignon (5i) dont le pivotement provoque le déplacement axial du porte-taraud. Furthermore, the sixth pinion is also associated with an eighth pinion (5h) which meshes with a ninth pinion (5i) whose pivoting causes the axial movement of the tap holder.
Bien entendu, l'invention n'est pas limitée aux modes de réalisation décrits et représentés à titre d'exemples, mais elle comprend aussi tous les équivalents techniques ainsi que leurs combinaisons. Of course, the invention is not limited to the embodiments described and shown by way of examples, but it also includes all the technical equivalents and their combinations.
Claims (1)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9510741A FR2738514A1 (en) | 1995-09-11 | 1995-09-11 | Thread=cutting attachment for cutting or stamping press |
| FR9512200A FR2738515B1 (en) | 1995-09-11 | 1995-10-13 | PRESS TAPPING DEVICE |
| DE1996607707 DE69607707T2 (en) | 1995-09-11 | 1996-09-05 | Tapping tool used in a press |
| EP19960410094 EP0761358B1 (en) | 1995-09-11 | 1996-09-05 | Tapping tool used on a press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9510741A FR2738514A1 (en) | 1995-09-11 | 1995-09-11 | Thread=cutting attachment for cutting or stamping press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2738514A1 true FR2738514A1 (en) | 1997-03-14 |
Family
ID=9482515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9510741A Pending FR2738514A1 (en) | 1995-09-11 | 1995-09-11 | Thread=cutting attachment for cutting or stamping press |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2738514A1 (en) |
-
1995
- 1995-09-11 FR FR9510741A patent/FR2738514A1/en active Pending
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