RU2192329C2 - Manual tool for riveting - Google Patents

Abstract

FIELD: machine engineering, possibly assembling production line with single-side access. SUBSTANCE: in body of tool there are mounted: adaptor with opening for rivet rod and clamping device with lengthwise duct for discharging waste of riveting process. Clamping device may perform reciprocation motion and it has through openings for placing movable wedges. Said wedges have at one side notches for clamping rod of rivet and at other side - arms for engaging with mechanical regulator having rotatable handle. Rotating motion of regulator are converted by means of threaded connection to translatory motion of wedges of clamping device. On tool body handles are jointly mounted for transferring axial effort to rivet rod; additional hinged handle is mounted on clamping device. EFFECT: lowered efforts for overcoming breaking of rivet rod. 3 cl, 5 dwg

Description

 The invention relates to the field of engineering and can find application in the assembly industry for riveting with one-way access.

 Known tools for manual riveting with one-way access, comprising a housing, a front sleeve with a nozzle for receiving the rivet rod, a chuck located in the front sleeve with a nozzle and connected to a rod equipped with a discharge channel for the rivet parts to be separated during the operation, made with the possibility reciprocating movement, and two pivotally mounted on the side surface of the lever housing for moving the rod and transmitting axial force to the rod when it breaks during riveting (see A.S. SSR 350562 of Cl. B 21 J 15/38).

 This design of the hand tool has limited use due to the inability to use rivets of different diameters.

 Closest to the technical essence of the invention is a manual tool for riveting with one-way access, comprising a housing, a nozzle with a hole for the rivet shaft, a clamping device with a longitudinal exhaust channel for waste during riveting, mounted with the possibility of reciprocating movement, and pivotally mounted handles for transmitting axial force rivets to the rod (RU 2096123 C1, 11.20.1997, B 21 J 15/38).

 The lever system of the hand tool of the design described above, although it simplifies the riveting process itself, however, requires significant physical effort to implement it. In addition, it is not distinguished by its compactness. The technical problem to which the invention is directed is to eliminate these drawbacks. Its advantage is that when performing similar functions, the design can significantly reduce physical efforts to overcome the resistance to rupture of the rivet rod. And compact dimensions increase the comfort of its use, ensuring work in cramped conditions. To solve this problem, a manual riveting tool with one-way access includes a housing, a nozzle with a hole for the rivet shaft, a mechanical regulator with a rotary handle, a clamping device with a longitudinal discharge channel for waste separated during riveting, made with through holes with movable wedges placed in them having at one end of the notch for clamping the rivet rods, and at the other end - shoulders for interaction with a mechanical regulator, the rotational movement of which is from the handle The threads in one direction or another are converted into the translational movement of the wedges through the threaded connection of the clamping device and the mechanical regulator. Handles are mounted pivotally on the housing for transmitting axial force rivets to the shaft.

 The tool is equipped with a folding handle pivotally mounted on the clamping device.

 The clamping device is connected to the housing by means of a threaded connection with the possibility of reciprocating movement relative to the housing when one of the main handles is rotated relative to the hinged handle.

The invention is illustrated by graphic materials, where:
figure 1 shows a General view of a hand tool for riveting;
figure 2 shows a hand tool in the process of installing it on the protruding rod of the rivet with divorced wedges;
figure 3 shows the tool in the stage of clamping the rivet rod with wedges;
figure 4 shows a tool in the stage of detachment of the rivet rod;
figure 5 - section aa in figure 1.

 The manual tool for riveting (Fig. 1) contains a housing 1, a fixed nozzle 2 mounted on the working end surface of the housing 1 to protect the surface (Fig. 2) of the product 3 from scoring and other damage, with an opening 4 for receiving the rivet rod 5, mechanical controller 6 with a rotary handle 7, a clamping device 8 with a longitudinal outlet channel 9 for detachable parts of rivets during riveting, with through holes and movable wedges 10 in them. The wedges 10 are provided at one end with notches 11 for gripping the rod 5, and at the other end, with shoulders 12 for interacting with the shoulder 13 of the mechanical regulator 6 using springs 14. The regulator 6 is an elongated cylinder and has a hole on the inner surface of which a threaded section 15 is cut , which serves to connect with the clamping device 8 and transmit to the wedges 10 translational motion during rotation of the handle 7. The controller 6 is also provided with a channel 16 in communication with the outlet channel 9 of the clamping device 8 and windows 17 for outputting the compartment part of the rods 5 rivets from the working area to the outside.

 The tool body 1 is provided with a pair of hinged hinged handles 18 (FIGS. 1 and 5) mounted diametrically opposite to each other, and an additional hinged hinged handle 19 is mounted on the clamping device. Using these handles, the clamping device 8 interacts with the tool body 1 to create an axial the force required to break the rod 5 in the riveting process through a screw drive 20 housing - clamping device.

 The work of the proposed hand tool for riveting is as follows. By turning the handle 7, for example, counterclockwise (Fig. 1 and 2), the regulator 6 moves along the helical gear 15 to the right, and its shoulder 13, interacting with the shoulders 12 of the wedges 10, makes them also move to the right, stretching the springs 14. At the same time, the ends wedges 10 with notches 11 expand to capture the protruding portion of the rivet rod 5.

 When the handle 7 is rotated clockwise (Figs. 1 and 3), the regulator 6 is screwed onto the body of the clamping device 8. The bead 13 does not exert pressure on the shoulders 11, the springs 14 are compressed, the wedges 10 are moved to the leftmost position and with their working part with notches 11 compress the rivet rod 5.

 Next, the hinges of the handles 18 and 19 (FIGS. 4 and 5) are folded to a position perpendicular to the axis of the tool, and holding the handle 19 of the clamping device 8, they begin to turn one of the handles 18 relative to the fixed handle 19. In this case, the tool body 1 begins to turn relative to the clamping device 8 through a threaded gear 20, transmitting axial force to the rivet rod 5. The handle 18 is rotated until the rivet rod 5 is completely detached.

 The separated part of the stud 5 of the rivet is removed through the channels 9, 16 and the window 17 of the regulator 6 from the working area to the outside.

 The use of screw connections in the design of a riveting tool with one-sided access to create traction axial forces on the rivet rod to break it gives a big gain in strength in overcoming the gap forces in comparison with the known similar lever type hand tools.

Claims (3)

 1. Hand tool for riveting with one-way access, comprising a housing, a nozzle with a hole for the rivet rod, a clamping device with a longitudinal exhaust channel for waste during riveting, mounted with the possibility of reciprocating movement, and pivotally mounted handles for transmitting axial force to the rivet rod characterized in that it is equipped with a mechanical regulator with a rotary handle, and the clamping device is made with through holes with movable wedges in them, on the one hand GOVERNMENTAL notches for clamping the rivet shank and, on the other hand - the shoulders to interact with the mechanical regulator configured to convert its rotational motion from the rotary handle by a threaded connection in the forward movement of the wedges of the clamping device.  2. The tool according to claim 1, characterized in that it is equipped with a folding handle pivotally mounted on the clamping device.  3. The tool according to p. 2, characterized in that the clamping device is connected to the housing by means of a threaded connection with the possibility of reciprocating movement relative to the housing while rotating one of the main handles relative to the hinged handle.

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