RU2254986C1 - Device for assembly of items made out of nonmetallic materials - Google Patents

Abstract

FIELD: devices for assembly of nonmetallic items.

SUBSTANCE: the invention is pertaining to the field of devices for assembling of items made out of nonmetallic materials, which may be used for adhesion of the items consisting of an internal skeleton and several billets of a shell with a seni-cylindrical surface linked to the skeleton. The device contains a frame, on which there are supports for installation of the components of the being assembled items and units mounted for contraction of the assembled components and a drive. The device is supplied with the mounted on the frame on its turning shafts rollers placed in two parallel rows. The turning shafts are made with the eccentrically located working surfaces and are mounted with a capability of synchronous movement of the rollers in height by a mounted on the shafts hinged lever-rod unit. The units for contraction of the assembled components are made in the form of the pressing side frames with an arc-shaped working surface, a tool of movement of the pressing side frames and the pressing bars. The tool of movement of the pressing bars is made in the form of the turning shafts, each of which linked with the pressing bar by the hinge- crank-and-bar unit. In the result the invention ensures simplification of the device design and the technological process of assembly.

EFFECT: the invention ensures simplification of the device design and the technological process of assembly.

3 cl, 4 dwg

Description

The assembly device is intended for gluing an article consisting of an inner frame and several shell blanks with a semi-cylindrical surface connected to the frame, made, for example, according to application No. 2002124081 (025527).

The frame contains a pair of longitudinal parallel ribs interconnected by transverse arcuate ribs and made of non-metallic materials based on wood. The frame ribs after assembly using glue with shell blanks function as stiffeners of the product.

A device for assembling products from non-metallic materials (for assembling wooden frames) is known, comprising a frame on which supports for mounting parts of the assembled product are fixed and assemblies for compressing the assembled parts are mounted, and a drive (SU 844317 A1, B 27 M 3/18, published 07/07/1981).

The known device cannot be used without significant changes for the assembly of products whose surface is arched, for example semi-cylindrical, and occupying a large production area in length. In addition, the nodes of the nodes for compression of the assembled parts do not provide the necessary compression over the entire contact surface, which is necessary when gluing thin-walled parts, that is, the known device is operable only for the assembly of wooden frames.

The essence of the invention lies in the fact that the device containing the frame on which the supports are mounted for mounting parts of the assembled product and the assemblies are mounted for compressing the assembled parts and the drive of the movable elements of the said assemblies are made with the following differences.

The difference is that the device is equipped with rollers mounted on the frame on the rotary axes. The rollers are placed in two parallel rows, the rotary axes of the rollers are made with eccentrically arranged working surfaces and are mounted with the possibility of synchronous movement of the rollers in height by means of a hinged lever-rod assembly (mechanism).

The nodes for compressing the assembled parts are made in the form of clamping sidewalls with an arched working surface, the movement mechanism of which is made in the form of a screw pair mounted on the frame with a movable housing pivotally connected to the clamping sidewalls by means of a pair of rods and a pair of two-arm angular levers.

The nodes for compressing the assembled parts, including the clamping rulers, are mounted on the frame with the ability to move the rulers in the guides of the mechanism, which is made in the form of rotary shafts, each of which is connected to the clamping ruler by a hinged crank-rod assembly.

In this case, the frame is made with the necessary supports, in which the mentioned two-arm angular levers and rotary shafts are mounted, respectively.

Figure 1 shows the proposed device, General view (view of the assembly);

figure 2 is a section aa in figure 1;

figure 3 is a section bB in figure 1;

figure 4 - section bb in figure 3.

The device comprises a frame 1 mounted on the base, on which U-shaped racks 2 are spaced apart along the longitudinal axis of the assembled product, interconnected by beams 3 fixed to them. Under the racks, supports 4 and 5 are fixed to the frame 6 for mounting the product on them. The frame is made of longitudinal ribs 7, on which, with a certain “step” determined by the length of the shell blank 8, transverse (arched) ribs 9 are fixed. The ribs 7 and 9 are glued together of several layers of wood veneer and assembled with a semicylindrical outer and inner surface.

The supports 5 are made with a semi-cylindrical convex surface, which in the working position is in contact with the inner surface of the transverse ribs 9. The supports 5 are interconnected by supporting beams 10 fixed on them, the working surface of which coincides with the inner cylindrical surface of the longitudinal ribs 7 of the frame.

On the supports 11 fixed to the frame, rollers 12 are mounted, the axes 13 of which are made with the eccentricity of the cylindrical surfaces mating with the supports and rollers. This provides the necessary movement of the rollers in height when turning the axes lever-rod mechanism 14.

For gluing the longitudinal ribs 7 of the frame with the blanks of the shell, the device is equipped with two clamping lines 15, bearing a wooden block 16 fixed on them, the working surface of which coincides with the outer cylindrical surface of the product. Rulers are mounted in guides 17 fixed to the beams 3 and can be moved in a horizontal plane. The rulers are placed symmetrically to the longitudinal axis of the device, the opposite of the product and are equipped with a lever, crank-rod mechanism 18 for moving and force interaction of the rulers with the product.

The mechanism comprises two rotary shafts 20 mounted on supports 3 fixed to the beams 3, each of which is equipped with a pair of cranks 21 mounted on the ends of the shaft. The cranks are pivotally connected to the rulers by rods 22. To rotate the shafts, a two-arm lever 23 is fixed on each of them, the lower shoulders of which pivotally interconnected by a rod 24, and on the upper shoulder of each lever is fixed load 25.

The rotation of the shafts between the working and non-working positions is carried out within an angle of approximately 90 degrees. At the same time, so that the rulers move towards one another (during the working stroke), the cranks of one of the shafts occupy a position above the horizontal diametrical plane, and the other under it with an angle spaced from the general horizontal diametrical plane of the shafts in the working position, - (10-15 ) degrees of rotation for each shaft.

For gluing the end sections of the shell blanks with transverse ribs of the frame, the device is equipped with two nodes 26 mounted on racks 2. Each of the nodes contains a pair of sidewalls 27 with a gasket 28 mounted on a concave working surface, which in the working position cover the semi-cylindrical surface of the product on both sides of the vertical planes of symmetry in an arc, approximately 80 degrees. The sidewalls are articulated with lever-rod assemblies mounted on each rack with the possibility of small radial movement of both sidewalls. The movement and compression of the parts of the product by the sidewalls is carried out by a mechanism using a screw 29 mounted in a support 30 on a rack 2 and placed in a vertical plane of symmetry of the device. The housing 31 articulated with a screw is pivotally connected to a pair of inclined rods 32, each of which is pivotally connected to the shoulder of the angular, two-shouldered lever 33. The angular lever mounted to rotate on a support fixed to the strut 34, is pivotally connected to the aforementioned sidewall 27 by the other shoulder.

To ensure vertical, translational (without rotation) movement of the housing 31 on the rack 2 is fixed to the guide plate 35 with a cutout for placement in it of one of the rods 32.

To implement simultaneous, synchronous movement of the rollers 12 in height, when translating them into working and inoperative position, the device is equipped with a hinged, lever-rod mechanism 14, made as follows.

At the ends of the axes 13, one-arm levers 36 are fixed, which are equally oriented relative to the diametrical plane of the “placement” of the eccentricity. The levers are pivotally interconnected by rods 37, the length of which (between the hinges) is made equal to the distance between the supports 11. This ensures synchronous movement of the rollers in height when the levers are rotated.

For the kinematic connection of the axes located on both sides of the longitudinal axis of the device, one pair of axles 38 carrying the rollers is made with cranks 39 fixed on them, which restore coaxiality. The axes 38 are interconnected by means of couplings 40 by a connecting shaft 41.

On the accommodation side of the operating personnel, on the axis 38, a lever-handle 42 is fixed that carries a load 43 mounted on the lever (for holding the rollers in the upper working position). The levers 36 (and 42) during operation of the mechanism rotate between the stops fixed on the frame (not shown) within an angle of 90-100 degrees.

To orient the product along the longitudinal axis of symmetry of the device (to prevent distortions when moving) on the supports 44 fixed to the frame, bearing vertically located axes, rollers 45 are mounted that interact with the product at the locations of the longitudinal ribs 7 of the frame.

The operation of the device during assembly of the product is carried out as follows.

In the initial non-working position, the sidewalls are in the upper position, the rulers 15 are pushed away from the supports 5 by turning the shafts with cranks 5 to the extreme position, and the frame is mounted on rollers that are raised by turning the axes 13, and the necessary clearance is provided between the inner surfaces of the frame ribs and the working surfaces of the supports 5 .

After applying glue to the glued surfaces of the carcass, a blank of the shell is installed on it and the product is moved to the working position for pressing the glued parts of the carcass and the shell. After lowering the rollers 12, the inner surfaces of the frame are located (in contact) on the working surfaces of the supports 5. By rotating the screws, the sides are lowered onto the bonded sections of the shell and, with further rotation, the pressure of these surfaces is necessary according to the technological regime. Then, by turning both shafts with cranks fixed to them at an angle of approximately 90 degrees, the rulers are moved to the working position. In this position, the upper shoulders of the levers with weights 25 are located approximately horizontally, and the cranks are located at an angle of 10-15 degrees to the horizontal diametrical plane of the shafts and rulers moving guides. In this position, the greatest clamping force of the rulers on the glued areas of the product from the action of loads 25 is provided.

After exposure according to the technological regime, the power mechanisms 18 and 26 are brought into an inoperative position, the product is lifted using the mechanism 14, and the product is moved along the rollers by the size of the arrangement of transverse ribs 9 of the frame. Previously, after applying glue to the next section of the frame to be glued to the shell blank, the next blank is laid on it until the ends come into contact with the previously installed one. After moving the product into the working area, work continues on gluing the frame with the blanks of the shell, as described above.

The pressing (compressing) units included in the device can be used separately in various devices. For example, a unit containing sidewalls with a concave working surface can be used in devices for the manufacture of wood veneer blanks of transverse arcuate ribs 9 of the frame, and a node with clamping rulers and a crank-rod mechanism in devices for manufacturing blanks of longitudinal ribs 7 of the frame.

The unit with clamping rulers can be used at furniture factories in devices for gluing strips of veneer to the edges of furniture plates, where the energy of compressed air is used to clamp the rulers. Replacing the mechanism with a pneumatic drive by the proposed mechanism will reduce energy costs in one of the operations for the manufacture of cabinet furniture.

Claims (3)

1. A device for assembling products from non-metallic materials, comprising a frame on which supports are mounted to install parts of the assembled product and assemblies are mounted to compress the assembled parts, and a drive, characterized in that it is equipped with rollers mounted on a frame on rotary axes, arranged in two parallel to the row, for moving the product during its assembly, the rotary axes are made with eccentrically located working surfaces and are mounted with the possibility of synchronous movement of the rollers in height in the middle of a hinged lever-rod assembly mounted on the axes, the nodes for compressing the assembled parts are made in the form of clamping sides with an arcuate working surface, a mechanism for moving the clamping sidewalls and clamping rulers mounted in guides with the ability to move from the drive, while the mechanism for moving the clamping sidewalls is made in in the form of a screw pair mounted on the frame with a movable housing pivotally connected to the clamping sides by means of a pair of rods and a pair of two-arm angular levers, and a mechanic gp displacement nip lines is designed as a rotary shaft, each of which is connected to the pressure line of the hinge rod-crank assembly. 2. The device according to claim 1, characterized in that the rotary axes of one pair of rollers placed in two parallel rows are kinematically connected to each other by a shaft and cranks restoring alignment. 3. The device according to claim 1, characterized in that the cranks of the rotary shaft of one of the clamping lines occupy a position above the horizontal diametrical plane of the rotary shaft, and the cranks of the rotary shaft of the other ruler occupy a position above the horizontal diametrical plane, at least one of the rotary shafts made with a load-carrying lever to create a clamping force of the rulers.

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