A cable tray tee and its automated welding assembly system

Abstract

The invention discloses a cable tray tee, comprising an integrated cable support frame and two bent side plates and a straight side plate welded on the outer periphery of the integrated cable support frame; each bent side plate comprises a side plate middle section and a side plate bent section a and a side plate bent section b which are symmetrically and integrally connected to two ends of the side plate middle section, and the side plate bent section a is perpendicular to the side plate bent section b; a first bridge is formed on a side away from the straight side plate between two adjacent bent side plates, and a second bridge and a third bridge are formed between the two bent side plates at both ends; a structural basis is provided for the automated assembly and welding of the cable tray tee.

Description

Technical Field

[0001] The invention belongs to the field of cable bridge manufacturing. Background Art

[0002] Cable tray tees are used at the nodes of the cable tray for diversion and confluence during cable wiring. They need to be laid in large quantities during the decoration stage of large buildings, office buildings, etc., so there is a demand for large-scale production and installation;

[0003] Among the existing bridge tee structures, the most commonly used ones are similar Figure 1 The vertical tee structure of the general structure. During the production process of the existing bridge tee structure, since the bridge tee structure itself has many components and the basic components are highly discrete, whether it is the process of bolt locking after assembly or welding forming after assembly, a large amount of manpower is required to participate in the assembly and welding work, which makes it difficult to achieve automation, thus affecting the production efficiency of the bridge tee. Summary of the invention

[0004] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a cable tray tee and an automated welding and assembly system thereof, so as to realize fully automated assembly and welding of the cable tray tee.

[0005] Technical solution: To achieve the above-mentioned purpose, a cable tray tee of the present invention comprises an integrated cable support frame and two bent side plates and a straight side plate welded on the outer periphery of the integrated cable support frame;

[0006] Each bent side panel includes a side panel middle section and a side panel bent section a and a side panel bent section b which are symmetrically connected to both ends of the side panel middle section, and the side panel bent section a is perpendicular to the side panel bent section b.

[0007] A first bridge passage is formed on a side away from the straight side plate between two adjacent bent side plates, and a second bridge passage and a third bridge passage are formed between the two ends of the straight side plate and the two bent side plates respectively.

[0008] Furthermore, the upper and lower ends of the convex side of the bent side plate are provided with a vertical flange along the contour, and the upper and lower ends of the straight side plate are provided with b vertical flange along the contour on one side close to the integrated cable support frame.

[0009] Furthermore, the integrated cable support frame includes a fold line edge a, a fold line edge b and a straight line edge which are distributed in an enclosed manner; the inner contours of the fold line edge a, the fold line edge b and the straight line edge are integrally connected to each other through a plurality of cross arms;

[0010] The a fold line edge is symmetrical with the b fold line edge, and both the a fold line edge and the b fold line edge are adapted to the convex side contour line of the bent side panel; the a fold line edge and the b fold line edge are respectively fitted to the inner side surface of the a vertical flange on the two bent side panels; the straight edge is fitted to the inner side of the b vertical flange of the straight side panel along the length direction.

[0011] Furthermore, the intersections of the contour lines of the vertical flange a and the vertical flange b with each cross arm are connected by welding.

[0012] Furthermore, an automated welding system for a cable tray tee includes a horizontal platform, a material taking trough having an inner contour consistent with an outer contour of an integrated cable support frame is arranged on the horizontal platform, and a support frame pile formed by stacking a plurality of integrated cable support frames up and down is placed flat in the material taking trough;

[0013] Among the plurality of inner edges of the contour of the material taking trough, three inner edges corresponding to the second a-folded segment, the second b-folded segment and the straight edge are respectively recorded as the first inner edge of the contour, the second inner edge of the contour and the third inner edge of the contour;

[0014] A fixed bracket is arranged above the material feeding trough, and a horizontal telescope is fixedly installed at the lower end of the fixed bracket, and the extension direction of the telescopic rod of the horizontal telescope is perpendicular to the inner edge of the third contour, and the end of the telescopic rod of the horizontal telescope is fixedly connected to a vertical motor through a motor bracket, and the lower end of the motor output shaft at the lower end of the motor is fixedly connected to a horizontal lifter support, and a number of lifters are installed on the lifter support, and a clamping unit is connected to the lower end of the lifting part of each lifter, and each clamping unit can be lowered to clamp the cross arm of an integrated cable support frame at the top of the support frame stack in the material feeding trough.

[0015] Furthermore, from a top-down perspective, the perpendicular bisectors of the inner edge of the first contour and the inner edge of the second contour are respectively recorded as the first virtual extension line and the second virtual extension line. In the initial state, the axis of the motor output shaft is at the intersection of the first virtual extension line and the second virtual extension line.

[0016] Furthermore, a pair of horizontal push rods parallel to the first virtual extension line are arranged on the horizontal platform, and the ends of the horizontal push rods are fixedly connected with folding line push strips, and the shape of the folding line push strips is adapted to the concave side profile of the bent side plate; a plurality of bent side plates are horizontally placed on the horizontal platform and are closely arrayed along the direction of the first virtual extension line;

[0017] Among the plurality of bent side panels closely arranged in an array, the concave side of a bent side panel farthest from the inner edge of the first contour is in contact with the fold line push strip.

[0018] Further, a pair of transverse guide rods parallel to the inner edge of the third profile are fixedly connected to the upper side of the horizontal platform through a fixing member;

[0019] In a top view, a linear gap having a thickness consistent with the wall thickness of the linear side plate is formed between the inner edge of the third contour and the guide rod;

[0020] A linear track is arranged parallel to one side of the guide rod away from the inner edge of the third contour, a slider is arranged on the linear track, a welding machine is fixedly connected to the top of the slider through a welding machine bracket, and the welding gun of the welding machine is vertically facing downward: in the process of displacement of the slider along the linear track, the movement trajectory of the welding gun of the welding machine is a linear trajectory.

[0021] Furthermore, it also includes a linear conveying unit, which can convey a plurality of linear side panels along the extension direction of the linear gap, so that each linear side panel is conveyed to the linear gap along the length direction.

[0022] Beneficial effect: The newly designed component units of the cable tray tee of the present invention provide a structural basis for the automated assembly and welding of the cable tray tee; and the welding assembly system of the cable tray tee in this case realizes the fully automated assembly and welding of the cable tray tee, thereby achieving the purpose of large-scale batch production. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Attached Figure 1 This is a schematic diagram of the cable tray tee structure. The upper and lower figures of this figure are upside down.

[0024] Attached Figure 2 This is a disassembly diagram of the cable tray tee;

[0025] Attached Figure 3 The structural diagram of the welding system is divided into top view and three-dimensional view;

[0026] Attached Figure 4 This is a schematic diagram for “Step 1”;

[0027] Attached Figure 5 This is a schematic diagram at the end of "Step 2";

[0028] Attached Figure 6 This is the schematic diagram at the end of "Step 3";

[0029] Attached Figure 7 This is the schematic diagram at the end of "Step 4";

[0030] Attached Figure 8 This is the schematic diagram at the end of "Step Five";

[0031] Attached Fig. 9 This is the schematic diagram at the end of "Step 6";

[0032] Attached Fig.10 This is the schematic diagram at the end of "Step 8";

[0033] Attached Fig.11This is the schematic diagram at the end of "Step 10";

[0034] Attached Fig.12 This is a schematic diagram showing the completion of "Step 11". DETAILED DESCRIPTION

[0035] The present invention will be further described below in conjunction with the accompanying drawings.

[0036] As attached Figure 1 and 2 A cable tray tee shown in the figure comprises an integrated cable support frame 5 and two bent side panels 1 and a straight side panel 2 welded on the outer periphery of the integrated cable support frame 5; each bent side panel 1 comprises a side panel middle section 1.2 and a side panel bent section a 1.1 and a side panel bent section b 1.3 symmetrically connected to both ends of the side panel middle section 1.2, and the side panel bent section a 1.1 is perpendicular to the side panel bent section b 1.3; the convex side of the overall shape of each bent side panel 1 is close to the integrated cable support frame 5; the integrated cable support frame 5 plays the role of stabilizing the structure and supporting the cables;

[0037] A first bridge 100.1 is formed between two adjacent curved side panels 1 on the side away from the straight side panel 2, and a second bridge 100.2 and a third bridge 100.3 are formed between the two ends of the straight side panel 2 and the two curved side panels 1, respectively; Figure 1 As shown in the figure below.

[0038] The upper and lower ends of the convex side of the bent side plate 1 are both provided with a vertical flange 6 along the contour, and the upper and lower ends of the straight side plate 2 are provided with a b vertical flange 7 along the contour near the one side of the integrated cable support frame 5; the integrated cable support frame 5 includes an a fold line edge 3, a b fold line edge 4 and a straight line edge 8 which are distributed in an enclosed manner; the a fold line edge 3 is composed of a continuous first a fold segment 3.1, a second a fold segment 3.2 and a third a fold segment 3.3; the b fold line edge 4 is composed of a continuous first b fold segment 4.1, a second b fold segment 4.2 and a third b fold segment 4.3; the inner contours of the a fold line edge 3, the b fold line edge 4 and the straight line edge 8 are similar. They are integrally connected to each other by a number of cross arms 9; the a fold line edge 3, the b fold line edge 4, the straight edge 8 and a number of cross arms 9 together constitute a horizontal integrated cable support frame 5; the a fold line edge 3 and the b fold line edge 4 are symmetrical, and the a fold line edge 3 and the b fold line edge 4 are both adapted to the convex side contour line of the bent side panel 1; the a fold line edge 3 and the b fold line edge 4 are respectively attached to the inner side surface of the a vertical flange 6 on the two bent side panels 1; the straight edge 8 is attached to the inner side of the b vertical flange 7 of the straight side panel 2 along the length direction; the contour lines of the a vertical flange 6 and the b vertical flange 7 and the intersection 110 of each cross arm 9 are connected by welding.

[0039] The newly designed component units of the cable tray tee of the present invention provide a structural basis for the automated assembly and welding of the cable tray tee. The specific welding system is as follows:

[0040] like Figures 3 to 12 A welding assembly system for a cable tray tee is shown, comprising a horizontal platform 12, on which is provided a material trough 15 whose inner contour is consistent with the outer contour of an integrated cable support frame 5, and in which is placed a support frame pile 5a formed by stacking a plurality of integrated cable support frames 5 up and down; among the plurality of inner contour edges of the material trough 15, three inner contour edges corresponding to the second a folded segment 3.2, the second b folded segment 4.2 and the straight edge 8 are respectively recorded as the first inner contour edge 15a, the second inner contour edge 15b and the third inner contour edge 15c.

[0041] A fixed bracket 31 is arranged above the material feeding trough 15, and the fixed bracket 31 is installed on a fixed device not shown in the figure. A horizontal telescope 27 is fixedly installed at the lower end of the fixed bracket 31, and the extension direction of the telescopic rod 26 of the horizontal telescope 27 is perpendicular to the inner edge 15c of the third contour. The end of the telescopic rod 26 of the horizontal telescope 27 is fixedly connected to the vertical motor 23 through the motor bracket 25, and the lower end of the motor output shaft 24 at the lower end of the motor 23 is fixedly connected to the horizontal lifter support 22, and a plurality of lifters 13 are installed on the lifter support 22. The lower end of the lifting part of each lifter 13 is connected to a clamping unit 14, and each clamping unit 14 can be lowered to clamp the cross arm 9 of the uppermost integrated cable support frame 5 at the support frame stack 5a in the material feeding trough 15.

[0042] From a top-down perspective, the perpendicular bisectors of the inner edge 15a of the first contour and the inner edge 15b of the second contour are respectively recorded as the first virtual extension line 35 and the second virtual extension line 34. In the initial state, the axis 33 of the motor output shaft 24 is at the intersection of the first virtual extension line 35 and the second virtual extension line 34. Based on this geometric relationship, in "step eight", the clamped integrated cable support frame 5 can rotate with the motor output shaft 24, and the b fold line edge 4 of the clamped integrated cable support frame 5 can move to coincide with the a fold line edge 3 in "step four", providing a structural basis for the welding of the second bent side panel 1.

[0043] A pair of horizontal push rods 10 parallel to the first virtual extension line 35 are arranged on the horizontal platform 12, and the ends of the horizontal push rods 10 are fixedly connected with fold line push strips 11, and the shape of the fold line push strips 11 is adapted to the concave side contour of the bent side panel 1; a plurality of bent side panels 1 arranged closely to each other in an array along the direction of the first virtual extension line 35 are horizontally placed on the horizontal platform 12; among the plurality of bent side panels 1 arranged closely to each other, the concave side of a bent side panel 1 farthest from the inner edge 15a of the first contour is in contact with the fold line push strip 11.

[0044] like Figure 3 and 4As shown, a pair of transverse guide rods 21 parallel to the inner edge 15c of the third profile are fixedly connected to the upper side of the horizontal platform 12 through a fixing member 16, and a conical guide head 21.1 is provided at one end of the guide rod 21; in a top view, a linear gap 121 having a thickness consistent with the wall thickness of the linear side plate 2 is formed between the inner edge 15c of the third profile and the guide rod 21, as shown in FIG. Figure 3 As shown; a linear track 40 is arranged parallel to the guide rod 21 on one side away from the inner edge 15c of the third contour, a slider 18 is arranged on the linear track 40, a welding machine 20 is fixedly connected to the slider 18 via a welding machine bracket 19, and the welding gun 17 of the welding machine 20 is vertically downward: in the process of the slider 18 moving along the linear track 40, the movement trajectory of the welding gun 17 of the welding machine 20 is a linear trajectory.

[0045] It also includes a linear transmission unit 130, which can transmit a plurality of linear side panels 2 along the extension direction of the linear gap 121, so that each linear side panel 2 is transmitted to the linear gap 121 along the length direction; the linear transmission unit 130 includes a plurality of roller groups 30 arranged along the extension direction of the linear gap 121, and the distance between two adjacent roller groups 30 is less than half of the length of the linear side panel 2; each roller group 30 includes a first roller 28 and a second roller 29 that can rotate actively, and the first roller 28 and the second roller 29 can roll and clamp the linear side panel 2, and the linear side panel 2 is displaced along its own length direction under the common rolling friction of the first roller 28 and the second roller 29; the plurality of linear side panels 2 that are in contact head to tail extend along the extension direction of the linear gap 121 under the constraint of the plurality of roller groups 30.

[0046] Working method:

[0047] Step 1: In the initial state, a support frame pile 5a formed by stacking a number of integrated cable support frames 5 is placed flat in the material trough 15; a number of straight side panels 2 that are in contact with each other extend in a straight line under the constraint of a number of roller groups 30; a number of bent side panels 1 that are closely arrayed along the direction of the first virtual extension line 35 are placed horizontally on the horizontal platform 12; among the several bent side panels 1 that are closely arrayed, the concave side of a bent side panel 1 that is farthest from the inner edge 15a of the first contour is in contact with the fold line push strip 11; from a top-down perspective, the axis 33 of the motor output shaft 24 is at the intersection of the first virtual extension line 35 and the second virtual extension line 34; the one of the several bent side panels 1 that are closely arrayed is farthest from the fold line push strip 11 as a bent side panel 1 to be welded;

[0048] Step 2: Control each lifter 13 to make each clamping unit 14 descend to clamp the cross arm 9 of the topmost integrated cable support frame 5 in the support frame stack 5a in the material taking trough 15, and then control each clamping unit 14 to rise, so that the topmost integrated cable support frame 5 in the support frame stack 5a rises, until the integrated cable support frame 5 rises to the middle height of the bent side plate 1 on the horizontal platform 12;

[0049] Step 3, control the horizontal push rod 10 to push, so that the plurality of bent side panels 1 close to each other in the array are pushed along the direction of the first virtual extension line 35, until a bent side panel 1 to be welded fits and contacts the outer contour of the a-fold line edge 3 of the clamped integrated cable support frame 5;

[0050] Step 4: Control each lifter 13 to raise the clamped integrated cable support frame 5, and move the a-fold line edge 3 upward to support the a-vertical flange 6 of the bent side panel 1 to be welded, and continue to rise, so that the lifted bent side panel 1 to be welded rises to a predetermined height together with the integrated cable support frame 5. At this time, the lifted bent side panel 1 to be welded is higher than the height of each bent side panel 1 placed on the horizontal platform 12;

[0051] Step 5, controlling the motor 23 to rotate the motor output shaft 24, so that the clamped integrated cable support frame 5 and the lifted bent side panel 1 to be welded rotate synchronously with the motor output shaft 24, until the b side panel bending section 1.3 of the bent side panel 1 to be welded is parallel to the straight track 40;

[0052] Then, the telescopic rod 26 of the horizontal telescopic device 27 is controlled to extend, so that the clamped integrated cable support frame 5 and the bent side panel 1 to be welded are offset as a whole along the direction of the telescopic rod 26, until, in a top-down perspective, the contour line of the a vertical flange 6 on the b side panel bent section 1.3 of the bent side panel 1 to be welded coincides with the motion trajectory of the end of the welding gun 17;

[0053] Step 6: The slider 18 moves along the linear track 40, so that the welding gun 17 of the welding machine 20 moves along the linear track direction; when the end of the welding gun 17 moves to the intersection of the contour line of the a vertical flange 6 on the b side plate bending section 1.3 and any cross arm 9, the welding gun 17 sprays welding liquid once, so that the a vertical flange 6 on the b side plate bending section 1.3 is welded to each cross arm 9, and finally the welding of the a vertical flange 6 on the b side plate bending section 1.3 of the bent side plate 1 to be welded and each cross arm 9 is completed;

[0054] Step 7, referring to the method of "Step 5" to "Step 6", complete the welding of the a side panel bending section 1.1 of the bent side panel 1 to be welded and the a vertical flange 6 on the side panel middle section 1.2 and each cross arm 9; and then make the bent side panel 1 completely welded to the integrated cable support frame 5;

[0055] Step eight, control the telescopic rod 26 of the horizontal telescopic device 27 to retract to the initial position, so that the axis 33 of the motor output shaft 24 returns to the intersection of the first virtual extension line 35 and the second virtual extension line 34, and then control the motor 23 to rotate the motor output shaft 24, so that the clamped integrated cable support frame 5 and the welded bent side plate 1 rotate synchronously with the motor output shaft 24, until the b fold line edge 4 of the clamped integrated cable support frame 5 coincides with the a fold line edge 3 in "step four";

[0056] Step nine, control each lifter 13 to make the clamped integrated cable support frame 5 drop to the middle height of the bent side plate 1 on the horizontal platform 12; at this time, the b-folded edge 4 on the integrated cable support frame 5 is just at the position of the a-folded edge 3 at the end of "step two"; at this time, the b-folded edge 4 on the integrated cable support frame 5 is equivalent to the a-folded edge 3 at the end of "step two";

[0057] Then, referring to the process of "step three" to "step seven", the second bent side plate 1 is completely welded to the side of the b-fold line edge 4 of the integrated cable support frame 5;

[0058] Step ten, control the telescopic rod 26 of the horizontal telescoping device 27 to retract to the initial position, so that the axis 33 of the motor output shaft 24 returns to the intersection of the first virtual extension line 35 and the second virtual extension line 34, and control the motor 23 to rotate the motor output shaft 24, so that the integrated cable support frame 5 welded with two bent side panels 1 rotates synchronously with the motor output shaft 24 until the straight edge 8 of the integrated cable support frame 5 is parallel to the straight track 40; then control each lifter 13 to make the clamped integrated cable support frame 5 drop to the middle height of the bent side panel 1 on the horizontal platform 12, at this time, a straight gap 121 is formed between the straight edge 8 of the integrated cable support frame 5 and a pair of transverse guide rods 21;

[0059] Step 11: The linear conveying unit 130 conveys a plurality of linear side panels 2 along the length direction, so that the first linear side panel 2 is conveyed along the length direction to the linear gap 121. At this time, the first linear side panel 2 is limited between the linear edge 8 of the integrated cable support frame 5 and a pair of transverse guide rods 21; then, each lifter 13 is controlled to raise the clamped integrated cable support frame 5, and the linear edge 8 of the integrated cable support frame 5 moves upward to the vertical flange 7 b that supports the linear side panel 2, and rises to a predetermined height;

[0060] At this time, from a top-down perspective, the contour line of the b vertical flange 7 of a piece of the straight side plate 2 to be welded coincides with the motion trajectory of the end of the welding gun 17; the control slider 18 is displaced along the straight track 40, so that the welding gun 17 of the welding machine 20 is displaced along the straight track direction; when the end of the welding gun 17 is displaced to the intersection of the contour line of the b vertical flange 7 of the straight side plate 2 and any cross arm 9, the welding gun 17 sprays out welding liquid once, so that the contour line of the b vertical flange 7 of the straight side plate 2 is welded to each cross arm 9, and finally the welding of the straight side plate 2 is completed. At this point, a complete cable tray tee structure has been automatically welded;

[0061] Step 12, control each clamping unit 14 to release, then manually or mechanically take away the cable tray tee that has been completely welded, and wait for the welding work of the next cable tray tee.

[0062] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An automated welding system for a cable tray tee, the cable tray tee comprising an integrated cable support frame (5) and two bent side panels (1) and a straight side panel (2) welded to the outer periphery of the integrated cable support frame (5); each of the bent side panels (1) comprises a side panel middle section (1.2) and a side panel bent section a (1.1) and a side panel bent section b (1.3) symmetrically connected to both ends of the side panel middle section (1.2) in an integrated manner, wherein the side panel bent section a (1.1) is perpendicular to the side panel bent section b (1.3); A first bridge frame passage (100.1) is formed on a side away from the straight side plate (2) between two adjacent bent side plates (1), and a second bridge frame passage (100.2) and a third bridge frame passage (100.3) are formed between the two ends of the straight side plate (2) and the two bent side plates (1) respectively; the upper and lower ends of the convex side of the bent side plate (1) are both provided with a vertical flange (6) along the contour, and the upper and lower ends of the straight side plate (2) are provided with a vertical flange (7) along the contour on a side close to the integrated cable support frame (5); the integrated cable support frame (5) comprises an a-fold line edge (3), a b-fold line edge (4) and a straight line edge (8) which are distributed in an enclosed manner; the a-fold line edge (3) is composed of a first continuous a-fold segment (3.1), a second a-fold segment (3.2) and a third a-fold segment (3.3); the b-fold line edge (4) is composed of a first continuous b-fold segment (4.1), a second b-fold segment (4.2) and a third b-fold segment (4.3); the inner contours of the a-fold line edge (3), the b-fold line edge (4) and the straight line edge (8) are connected to each other in an integral manner via a plurality of cross arms (9); a The fold line edge (3) and the b fold line edge (4) are symmetrical, and the a fold line edge (3) and the b fold line edge (4) are both adapted to the convex side contour line of the bent side plate (1); the a fold line edge (3) and the b fold line edge (4) are respectively fitted to the inner side surface of the a vertical flange (6) on the two bent side plates (1); the straight edge (8) is fitted to the inner side of the b vertical flange (7) of the straight side plate (2) along the length direction; the contour lines of the a vertical flange (6) and the b vertical flange (7) and the intersection (110) of each cross arm (9) are all connected by welding; Features: The automated welding system for the cable tray tee comprises a horizontal platform (12), on which a material taking trough (15) having an inner contour consistent with the outer contour of the integrated cable support frame (5) is arranged, and in which a support frame pile (5a) formed by stacking a plurality of integrated cable support frames (5) up and down is placed horizontally; Among the plurality of inner edges of the contour of the material taking trough (15), three inner edges corresponding to the second a-folded section (3.2), the second b-folded section (4.2) and the straight edge (8) are respectively recorded as the first inner edge (15a), the second inner edge (15b) and the third inner edge (15c); A fixed bracket (31) is arranged above the material taking trough (15), a horizontal telescopic device (27) is fixedly installed at the lower end of the fixed bracket (31), and the extension direction of the telescopic rod (26) of the horizontal telescopic device (27) is perpendicular to the inner edge (15c) of the third contour, and the end of the telescopic rod (26) of the horizontal telescopic device (27) is fixedly connected to a vertical motor (23) through a motor bracket (25), and the lower end of the motor output shaft (24) at the lower end of the motor (23) is fixedly connected to a horizontal lifter support (22), and a plurality of lifters (13) are installed on the lifter support (22), and the lower end of the lifting part of each lifter (13) is connected to a clamping unit (14), and each clamping unit (14) can be lowered to clamp the cross arm (9) of the one-piece integrated cable support frame (5) at the uppermost end of the support frame stack (5a) in the material taking trough (15); In a top view, the perpendicular midlines of the first contour inner edge (15a) and the second contour inner edge (15b) are respectively recorded as a first virtual extension line (35) and a second virtual extension line (34), and in an initial state, the axis (33) of the motor output shaft (24) is at the intersection of the first virtual extension line (35) and the second virtual extension line (34); A pair of horizontal push rods (10) parallel to the first virtual extension line (35) are arranged on the horizontal platform (12); the ends of the horizontal push rods (10) are fixedly connected with folding line push strips (11); the shape of the folding line push strips (11) is adapted to the concave side profile of the folding side plate (1); a plurality of folding side plates (1) are horizontally placed on the horizontal platform (12) and are closely arranged in an array along the direction of the first virtual extension line (35); Among the plurality of bent side panels (1) arranged in an array close to each other, the concave side of a bent side panel (1) which is farthest from the inner edge (15a) of the first contour is fitted with the fold line push strip (11).

2. The automatic welding system for cable tray tees according to claim 1 is characterized by: A pair of transverse guide rods (21) parallel to the inner edge (15c) of the third profile are fixedly connected to the upper side of the horizontal platform (12) via a fixing member (16); In a top view, a linear gap (121) having a thickness consistent with the wall thickness of the linear side plate (2) is formed between the inner edge (15c) of the third contour and the guide rod (21); A linear track (40) is arranged in parallel on one side of the guide rod (21) away from the inner edge (15c) of the third contour, a slider (18) is arranged on the linear track (40), a welding machine (20) is fixedly connected to the top of the slider (18) via a welding machine bracket (19), and a welding gun (17) of the welding machine (20) is vertically downward: when the slider (18) moves along the linear track (40), the movement trajectory of the welding gun (17) of the welding machine (20) is a linear trajectory.

3. The automatic welding system for cable tray tees according to claim 2 is characterized in that: It also comprises a linear conveying unit (130), which can convey a plurality of linear side panels (2) along the extension direction of the linear gap (121), so that each linear side panel (2) is conveyed to the linear gap (121) along the length direction.

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