Rounding machine for paired welding of iron-wood plate frameworks

Abstract

An iron wood plate framework paired welding rounding machine comprises a rounding machine rack and a plurality of outer ring rounding devices. Any outer ring rounding device comprises a rounding bracket, a radial action driving mechanism and a power device; the power device is connected with the radial action driving mechanism and drives the radial action driving mechanism to do radial linear motion along an operation plane, the rounding support is connected to the radial action driving mechanism, the top of the rounding support is an outer ring placing plane, and the outer side of the outer ring placing plane is an outer ring limiting mechanism; the radial action driving mechanism of each outer ring rounding device is connected with the same power device through a power distribution mechanism; the power device is a gear motor, and the radial action driving mechanism is a lead screw device. The gear motor is connected with and drives a screw rod of one screw rod device, which is called as a driving screw rod, and the screw rods of the other screw rod devices are called as driven screw rods; according to the structure of the power distribution mechanism, the front ends of the lead screws are connected with the same bevel gears, the bevel gears are matched with one another, and the driving lead screw rotates to drive the driven lead screw to rotate through the bevel gears.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of positioning, clamping, rounding and loosening integrated rounding machine, specifically a kind of iron wood disc skeleton pair welding rounding machine. BACKGROUND

[0002] With the rapid development of China's electric power, communication industry, cable demand is also increasing, and now iron wood disc skeleton is manually welded in pair welding stage, and the labor intensity is large, the operation is complex, and the positioning accuracy is basically relied on feeling, resulting in low welding strength.

[0003] In the welding process, the position accuracy of each workpiece is particularly important, in the traditional manual operation process, the outer ring and other workpieces are made of angle steel, and the strength is large, after the bending machine, although the general shape is circular, but after the transfer process, the workpiece shape will be deformed under the action of structural stress, causing the butt gap to be too large. Usually manual adjustment is used, and the main problem is that the stress of each part of the outer ring is uneven, and the rounding degree after adjustment is not high.

[0004] The term of iron wood disc is explained as follows: Figure 5 As shown in the iron wood disc skeleton, the skeleton is welded by outer ring 101 and middle steamer frame 102, after installing wood plate on the surface of the skeleton, finally iron wood disc is obtained. Because the structure of the steamer frame is similar to the steamer frame used for cooking, the frame structure made of concentric shaft core 103 and inner ring 104, and a plurality of radial spokes 105 welded together is named as "steamer frame". The outer ring 101 is welded to the outer edge of the steamer frame, and the shaft core 103 and the inner ring 104 are concentric. According to the diameter of the iron wood disc, the inner ring can be omitted or one or more concentric rings with different diameters can be used. SUMMARY

[0005] In order to solve the above problems existing in the prior art, the utility model provides an iron wood disc skeleton pair welding rounding machine, which comprises a rounding machine rack and a plurality of outer ring rounding devices.

[0006] Any outer ring rounding device comprises a rounding support, a radial action driving mechanism and a power device. The power device connects and drives the radial action driving mechanism to move radially along the working plane. The rounding support is connected to the radial action driving mechanism. The top of the rounding support 4 is an outer ring placing plane, and the outer side of the outer ring placing plane is connected to an outer ring limiting mechanism.

[0007] The radial action driving mechanisms of each outer ring rounding device are connected to the same power device through a power distribution mechanism, and each radial action driving mechanism acts synchronously.

[0008] The power device is a reduction motor, and the radial action driving mechanism is a screw rod device; the axes of the screw rods of each screw rod device are parallel to the working plane and are uniformly distributed around the center O; the reduction motor is connected to drive the screw rod of one screw rod device, which is referred to as a driving screw rod, and the screw rods of the other screw rod devices are referred to as driven screw rods;

[0009] The power distribution mechanism is structured in that the front ends of the screw rods are all connected to the same bevel gears, the bevel gears are matched with each other, the driving screw rod is rotated to drive the driven screw rods to rotate through the bevel gears, and the nuts on the screw rods are synchronously close to or away from the center O.

[0010] Further, the structure of the steamer rack positioning device includes a top pin telescopic cylinder and a top pin matched with the hollow shaft core; the piston rod of the top pin telescopic cylinder installed on the working plane is vertically upward, the top end of the piston rod is connected to the top pin, and the axes of the piston rod and the top pin are both vertically through the center O of the working plane. This structure makes the position of the steamer rack in the middle of the outer ring, and the two are concentric.

[0011] Further, the structure of the steamer rack positioning device includes a top pin telescopic cylinder and a top pin matched with the hollow shaft core; the piston rod of the top pin telescopic cylinder installed on the working plane is vertically upward, the top end of the piston rod is connected to the top pin, and the axes of the piston rod and the top pin are both vertically through the center O of the working plane. This structure makes the position of the steamer rack in the middle of the outer ring, and the two are concentric.

[0012] The piston rod of the down-pressing cylinder is perpendicular to the working plane, and the top of the piston rod is connected to the pressing block; the cylinder body of the down-pressing cylinder is connected to the cylinder support; the linear direction of the linear guide rail is the radial direction of the working plane, and the cylinder support is slidingly connected to the linear guide rail; the axis direction of the piston rod of the position cylinder is the radial direction of the working plane, and the piston rod of the position cylinder is connected to the cylinder support. This structure makes the spoke of the steamer rack and the welding position of the outer ring fit, so that the welding strength of the two is guaranteed.

[0013] Specifically, the end of the pressing block is rotationally connected to the upper part of the cylinder support, the front end of the pressing block points to the center O, and the rotation axis l is parallel to the tangential direction of the working plane.

[0014] The top end of the piston rod of the down-pressing cylinder is rotationally connected to the rear part of the pressing block, and the rotation axis l’ is parallel to the rotation axis l . Under this structure, in the normal state, the down-pressing cylinder is lifted, and the pressing block is in a vertical state. When it is necessary to press the workpiece, the down-pressing cylinder is pressed down, and the pressing block is in a horizontal state, and the front part of the pressing block presses the workpiece. The length direction of the pressing block is a straight line passing through the center O, and the length direction is the radial direction. Under this structure, whenever the iron wood disc skeleton frame is welded, the pressing block is vertically arranged to complete the separation of the workpiece and the feeding of the next round, without large-scale and high-frequency adjustment of the radial position of the cylinder support.

[0015] Specifically, the structure of the outer ring limiting mechanism is that a whole circle cylinder is connected to the outer ring placement plane, the front end of the piston rod of the whole circle cylinder is connected to a backing plate, the piston rod moves in a radial straight line along the working plane, and the piston rod of the whole circle cylinder faces the center O. Under this structure, the change of the gauge of the processed workpiece can be accurately completed through the fine adjustment of the whole circle cylinder.

[0016] Further, a gear box is also included, each bevel gear is in the gear box, the front part (i.e. the part without external thread) of each lead screw passes into the gear box from the side wall of the gear box, and there is a shaft seal between the lead screw and the side wall of the gear box, the gear box is filled with lubricating grease, the gear box is installed at the middle position of the surface of the working plane, and the top center telescopic cylinder is installed on the top surface of the gear box. Since the working frequency of each gear is high, this structure can better lubricate the gears and avoid welding sparks from splashing onto the lubricating grease.

[0017] In engineering practice, the power distribution mechanism:

[0018] For an even number of lead screw devices, the mutual cooperation mode of each bevel gear is that the bevel gears of each adjacent lead screw can be directly meshed, the thread directions of the adjacent lead screws are opposite, and are right-handed thread and left-handed thread respectively, the thread directions of the corresponding nuts are matched with the lead screws, so that the nuts on each lead screw are ensured to be synchronously advanced and retreated.

[0019] For an odd number of lead screw devices, the mutual cooperation mode of each bevel gear is that a common bevel gear (with a diameter large enough to accommodate each bevel gear to mesh therewith) is additionally provided, the common bevel gear is parallel to the working plane and the rotation axis of the common bevel gear passes through the center O, and each bevel gear on the lead screw is meshed with the common bevel gear, so that: the rotation of the driving lead screw drives the common bevel gear to rotate through the bevel gear, and in turn drives the corresponding driven lead screw to rotate through other bevel gears. Under this structure, the thread directions of each lead screw are the same. This structure is also applicable to an even number of lead screw devices.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] 1. The utility model discloses convenient operation, and manual positioning and fixing of steamer frame of operator are not needed, and labor intensity is reduced.

[0022] 2. The whole circle mechanism can realize the whole circle of the outer ring and the positioning and fixing of the steamer frame, improve the mechanization level of iron disc making, and help paired welding of iron disc skeletons. DRAWINGS

[0023] Figure 1 It is a structure schematic view (use state) of the whole circle machine of the embodiment;

[0024] Figure 2 It is a front view (use state) of the whole circle machine of the embodiment;

[0025] Figure 3 is a left view (A-A section view in Figure 2 );

[0026] Figure 4 is a top view (in use) of the present embodiment of the whole circle machine;

[0027] Figure 5 is a schematic diagram of the framework of the ironwood plate;

[0028] In the figure: outer ring 101, steamer rack 102, shaft core 103, inner ring 104, spoke 105, whole circle machine frame 1, bearing seat 2, nut seat 3, whole circle support 4, U-shaped support 5, whole circle cylinder 6, pad 7, connecting plate 8 of whole circle support and nut seat, driven lead screw 9, nut 10, bevel gear 11, speed reducer motor 12, driving lead screw 13, position cylinder 14, cylinder support 16, pressing cylinder 17, linear guide rail 18, slider 19 between cylinder support and linear guide rail, working plane 20, pressing block 21, gear box 22, support 23 of center guide plate, center telescopic cylinder 24, center guide plate 25, center 26, sliding sleeve seat 27, sliding sleeve 28. DETAILED DESCRIPTION

[0029] The present scheme is further described in conjunction with the accompanying drawings and specific embodiments.

[0030] Please refer to Figures 1-4 , the present embodiment of the pair of ironwood plate framework welding whole circle machine, including whole circle machine frame 1 and a plurality of outer ring whole circle device; a plurality of outer ring whole circle device is evenly distributed around the center O of the working plane 20 of the whole circle machine frame 1;

[0031] Any outer ring whole circle device includes whole circle support 4, radial action driving mechanism and power device; the power device is connected and drives the radial action driving mechanism to move along the working plane in radial straight line, the whole circle support 4 is connected on the radial action driving mechanism, the outer ring placing plane is on the top of the whole circle support 4, and the outer ring limiting mechanism is connected outside the outer ring placing plane;

[0032] The radial action driving mechanism of each outer ring whole circle device is connected with the same power device through power distribution mechanism, and each radial action driving mechanism acts synchronously;

[0033] The power device is a speed reducer motor 12, and the radial action driving mechanism is a lead screw device; the shaft line of the lead screw of each lead screw device is parallel to the working plane and is evenly distributed around the center O; the speed reducer motor 12 is connected to drive the lead screw of one lead screw device, and this lead screw is called driving lead screw 13, and the lead screw of the other lead screw device is called driven lead screw 9;

[0034] Specifically, the two ends of the screw rod of the screw rod device are connected in the sliding groove through the bearing seat 2, the screw rod is connected with the nut 10, the nut 10 is connected with the nut seat 3, the nut seat 3 slides along the sliding groove, and the whole round support 4 is connected with the nut seat 3 through the connecting plate 8 of the whole round support and the nut seat.

[0035] Further referring to Figure 3 , the structure of the power distribution mechanism is that the front ends of the screw rods are all connected with the same bevel gears 11, the bevel gears 11 are matched with each other, the driving screw rod rotates to drive the driven screw rod to rotate through the bevel gear, and then the nuts 10 on the screw rods are synchronously close to or away from the center O.

[0036] Further referring to Figure 3 , in this example,

[0037] Further comprising a steamer rack positioning device, which comprises a top pin telescopic cylinder 24 and a top pin 26 matched with the hollow of the shaft core 103; the piston rod of the top pin telescopic cylinder 24 installed on the operation plane vertically points upward, and the top end of the piston rod is connected with the top pin; the axis of the piston rod and the top pin both vertically penetrates the center O of the operation plane.

[0038] Further comprising a plurality of steamer rack positioning and fixing devices uniformly distributed around the center O of the operation plane; any steamer rack positioning and fixing device comprises a pressing block 21, a pressing cylinder 17, a cylinder support 16, a linear guide rail 18 and a position cylinder 14;

[0039] The piston rod of the pressing cylinder 17 is perpendicular to the operation plane, and the top of the piston rod is connected with the pressing block 21; the cylinder body of the pressing cylinder 17 is connected with the cylinder support 16; the linear direction of the linear guide rail 18 is the radial direction of the operation plane, and the cylinder support 16 is slidingly connected with the linear guide rail 18; the axis direction of the piston rod of the position cylinder 14 is the radial direction of the operation plane, and the piston rod of the position cylinder 14 is connected with the cylinder support 16.

[0040] The end of the pressing block 21 is rotationally connected with the upper part of the cylinder support 16, the front end of the pressing block 21 points to the center O, and the rotation axis l is parallel to the tangential direction of the operation plane;

[0041] The top end of the piston rod of the pressing cylinder 17 is rotationally connected with the rear part of the pressing block 21, and the rotation axis l’ is parallel to the rotation axis l .

[0042] Further comprising a gear box 22, and each bevel gear 11 is in the gear box 22; the front part of each screw rod penetrates into the gear box from the side wall of the gear box, and there is a shaft seal between the screw rod and the side wall of the gear box; the gear box 22 is filled with lubricating grease;

[0043] The gear box 22 is installed in the middle of the working plane surface; the top telescopic cylinder 24 is installed on the top surface of the gear box 22. In the engineering implementation, the top guiding plate 25 with guiding holes is connected to the top surface of the gear box 22 through the support 23 of the top guiding plate, and the top telescopic cylinder 24 is in the hollow formed by the structure.

[0044] In this example, the structure of the outer ring limiting mechanism is that a full-circle cylinder 6 is connected to the outer ring installation plane, the front end of the piston rod of the full-circle cylinder 6 is connected to a pad 7, and the piston rod moves in a radial straight line along the working plane, and the piston rod of the full-circle cylinder 6 faces the center O. Specifically, a U-shaped support 5 is connected to the outer ring installation plane, the open end of the U-shaped support faces the center O of the working plane, the cylinder body of the full-circle cylinder 6 is installed at the closed end of the U-shaped support, and the pad 7 moves in a radial straight line between the open end and the closed end of the U-shaped support.

[0045] In this example, there are 8 sets of outer ring full-circle devices and 3 sets of steamer rack positioning and fixing devices. Referring to the drawings, the principle of the full-circle machine is as follows:

[0046] When the outer ring 101 falls on the full-circle support 4, the reduction motor 12 drives the driving screw rod 13 to rotate;

[0047] Then the driving screw rod 13 drives the bevel gear 11 to rotate, ensuring that all screw rods (including the driven screw rod 9 and the driving screw rod 12) can rotate synchronously, thereby driving the nut 10 to move towards the center;

[0048] The nut seat 3 installed on the nut 10 simultaneously drives the full-circle support 4 to move towards the center;

[0049] Finally, the outer ring 101 completes the full-circle work under the extrusion of each full-circle support 4.

[0050] In the actual processing process, since there are many types of ironwood disc pieces, the full-circle cylinder 6 installed on the U-shaped support 5 drives the pad 7 to adjust and change the radius of the workpiece installation area, thereby simplifying the rule change (changing different specifications of processing workpieces);

[0051] Steamer rack positioning device: when the outer ring 101 completes the full-circle, the top telescopic cylinder 24 drives the top pin 26 to slide out in the sliding sleeve 28 fixed in the sliding sleeve seat 27; the steamer rack 102 is placed against the top pin 26, and automatically centers to complete the fine positioning of the steamer rack under the action of gravity;

[0052] Steamer rack fixing device: when the steamer rack 102 completes the positioning, the pressing block 21 is pressed against the steamer rack 102 under the drive of the pressing cylinder 17, thereby completing the fixation of the steamer rack.

[0053] In the processing, because of the iron wood disc type is more, installed in the cylinder support 16 on the lower pressure cylinder 17, in the position cylinder 14 drive under, make the lower pressure cylinder 17 along the linear guide 18 linear direction (radial) movement, complete the change rule.

[0054] The operation process of the whole round machine is:

[0055] The whole round support 4 contacts the outer circle 101, the torque increases, reaches the set value, the deceleration motor 12 stops,

[0056] At the same time, the top center telescopic cylinder 24 extends the top center 26, and the steamer rack 102 center (specifically the cylindrical hollow of the mandrel 103) is placed against the top center 26, and the steamer rack 102 slides down along the top center 26 under the action of gravity, completing the centering;

[0057] Then, the lower pressure cylinder 17 presses and fixes the steamer rack 102 with the pressing block 21. After the subsequent pairing and welding work is completed, the lower pressure cylinder 17 releases the steamer rack 102 with the pressing block 21, and the top center telescopic cylinder 24 retracts the top center 26,

[0058] Then, the deceleration motor 12 starts, and the 8 whole round supports 4 move away from the center O. At this time, the iron wood disc skeleton composed of the steamer rack 102 and the outer ring 101 is separated from the whole round machine, and then the iron wood disc skeleton can be removed.

[0059] The whole round machine can realize dynamic positioning, clamping, rounding and loosening of the iron wood disc during pairing and welding, has the characteristics of accurate positioning and firm fixing, improves the mechanization degree of the process, reduces the labor intensity of the operator, improves the safety, and helps the pairing and welding of the iron wood disc skeleton.

Claims

1. A machine for butt welding of a frame of a wooden wheel, characterized in that The device comprises a whole circle machine frame and a plurality of outer ring whole circle devices; the plurality of outer ring whole circle devices are evenly distributed around the center O of the working plane of the whole circle machine frame; Any outer ring whole circle device comprises a whole circle support, a radial action driving mechanism and a power device; the power device connects and drives the radial action driving mechanism to move linearly in the radial direction of the working plane, and the whole circle support is connected to the radial action driving mechanism; an outer ring placing plane is arranged on the top of the whole circle support, and an outer ring limiting mechanism is connected to the outer side of the outer ring placing plane; The radial action driving mechanisms of the plurality of outer ring whole circle devices are connected to the same power device through a power distribution mechanism, and the radial action driving mechanisms are synchronously driven; The power device is a speed reducer motor, and the radial action driving mechanism is a lead screw device; the axes of the lead screws of the plurality of lead screw devices are parallel to the working plane and are evenly distributed around the center O; the speed reducer motor is connected to drive the lead screw of one lead screw device, which is referred to as a driving lead screw, and the lead screws of the other lead screw devices are referred to as driven lead screws; The power distribution mechanism comprises: the front ends of the lead screws are connected to the same bevel gears, the bevel gears are matched with each other, the driving lead screw is driven to rotate through the bevel gears to drive the driven lead screws to rotate, and the nuts on the lead screws are synchronously driven to move towards or away from the center O.

2. The iron wood disc skeleton pair welding rounder according to claim 1, characterized in that The device further comprises a steamer rack positioning device, which comprises: a center top extension cylinder and a center top for matching the hollow shaft core; the piston rod of the center top extension cylinder is vertically upwardly arranged on the working plane, the center top is connected to the top end of the piston rod, and the axes of the piston rod and the center top are both perpendicular to the center O of the working plane.

3. The iron wood disc skeleton pair welding rounder according to claim 1 or 2, characterized in that The device further comprises a plurality of steamer rack positioning and fixing devices which are evenly distributed around the center O of the working plane; any steamer rack positioning and fixing device comprises: a pressing block, a pressing cylinder, a cylinder support, a linear guide rail and a position cylinder; The piston rod of the pressing cylinder is perpendicular to the working plane, and the pressing block is connected to the top of the piston rod; the cylinder body of the pressing cylinder is connected to the cylinder support; the linear guide rail is arranged in the radial direction of the working plane, and the cylinder support is slidably connected to the linear guide rail; the piston rod of the position cylinder is arranged in the radial direction of the working plane, and the piston rod of the position cylinder is connected to the cylinder support.

4. The iron wood disc skeleton pair welding rounder according to claim 3, characterized in that The end of the pressing block is rotatably connected to the upper part of the cylinder support, and the front end of the pressing block points to the center O, and the rotation axis is parallel to the working plane l tangential to the working plane; The top end of the piston rod of the lower pressure cylinder is pivotally connected to the rear part of the pressure block, the pivot axis l’ being parallel to the pivot axis l of the upper pressure cylinder.

5. The iron wood disc skeleton pair welding rounder of claim 1, characterized in that The outer ring limiting mechanism comprises: a whole circle cylinder is connected to the outer ring placing plane, a pad plate is connected to the front end of the piston rod of the whole circle cylinder, the piston rod moves linearly in the radial direction of the working plane, and the piston rod of the whole circle cylinder faces the center O.

6. The iron wood disc skeleton pair welding rounder of claim 1, characterized in that The device further comprises a gear box, and the bevel gears are arranged in the gear box; the front parts of the lead screws are arranged in the gear box through the side walls of the gear box, and the lead screws are sealed with the side walls of the gear box; the gear box is filled with lubricating grease; The gear box is arranged at the middle position of the surface of the working plane; and the center top extension cylinder is arranged on the top surface of the gear box.

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