Workpiece rotating and positioning device for automatic resin welding machine

Abstract

The utility model discloses a workpiece rotating and positioning device for an automatic resin welding machine. The workpiece rotating and positioning device comprises an X-axis driving mechanism, a rotating mechanism and a terrace type positioning workbench. The X-axis driving mechanism comprises a mounting frame, an X-axis driving motor, an X-axis transmission screw rod and X-axis sliding rails, the two X-axis sliding rails are symmetrically fixed to the two sides of the mounting frame, one end of the X-axis transmission screw rod is connected with the power output end of the X-axis driving motor, and the other end of the X-axis transmission screw rod is rotatably mounted on an X-axis transmission screw rod support; the rotating mechanism comprises a pneumatic rotating seat and a rotating seat bottom plate, the pneumatic rotating seat is mounted on the rotating seat bottom plate, a nut seat for mounting an X-direction lead screw nut is arranged in the center of the back of the rotating seat bottom plate, and a plurality of sliding blocks are symmetrically arranged on the two sides of the nut seat; and the bottom of the terrace type positioning workbench is fixed on the pneumatic rotating seat. By means of the mode, welding blind areas can be eliminated, and the requirement for accurate positioning of spatial positions during welding is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automation equipment, in particular to a workpiece rotating positioning device for resin automatic welding machine. BACKGROUND

[0002] The resin welding machine is a device that heats and melts resin welding rods or welding pieces by hot air and then welds them. Currently, the plastic hot air welding machine is generally held by the on-site personnel for welding work. This working method is limited by the quality of the operators on the one hand, and the welding quality is not uniform and stable. Especially when welding some large products, the defects generated in the process will obviously increase. On the other hand, as the overall efficiency of the production line improves, individual welding cannot match the production speed of the entire production line. Therefore, in order to improve the overall production efficiency and the stability of the product welding quality, a special automatic resin welding equipment needs to be designed. The automatic resin welding equipment needs to be able to automatically adjust the workpiece form during work, so as to eliminate the welding blind area and meet the requirement of precise positioning. However, the existing terrace type positioning workbench is applied to manual welding environment and cannot meet the actual needs of automation. SUMMARY

[0003] The technical problem solved by the utility model is to provide a workpiece rotating positioning device for resin automatic welding machine, which can meet the requirements of automatic welding equipment, eliminate the welding blind area, and improve the positioning accuracy.

[0004] To solve the above technical problems, the utility model adopts one technical scheme, which provides a workpiece rotating positioning device for a resin automatic welding machine, the workpiece rotating positioning device is installed on the base of the resin automatic welding machine, and the workpiece rotating positioning device comprises an X-axis driving mechanism, a rotating mechanism and a terrace type positioning workbench.

[0005] In a preferred embodiment of the utility model, the terrace type positioning workbench is provided with a positioning groove in the middle of the table top, a plurality of positioning steps are arranged in the positioning groove, each set of positioning steps can adapt to a workpiece of a size, and a workpiece inductor is installed on each set of positioning steps. The workpiece inductor has two types, one is a trigger type inductor, and the other is a photoelectric inductor; the two types of inductors are arranged on the two sides of the Y-direction center line of the positioning groove. A plurality of lateral stabilizing structures are symmetrically arranged on the two sides of the X-direction center line of the positioning groove. Each lateral stabilizing structure comprises a top plate, a top pin and two T-shaped sliding grooves, the two T-shaped sliding grooves are arranged perpendicularly to the groove wall of the positioning groove, screw nuts are symmetrically installed at the two ends of the top plate to be clamped into connecting bolts of the T-shaped sliding grooves, a positioning bolt hole is arranged vertically above the middle of the top plate, at least one positioning bottom hole is arranged on the table top of the terrace type positioning workbench, a screw rod of the positioning bolt is arranged through the positioning bolt hole and abuts against the corresponding positioning bottom hole, top pin holes parallel to the table top are symmetrically arranged on the two sides of the positioning bolt hole, and a top pin is installed in each top pin hole; the top pin and the top pin hole are connected through a threaded structure.

[0006] In a preferred embodiment of the utility model, two foldable iron screens are installed on the mounting frame, the two foldable iron screens are respectively installed on the two sides of the rotating seat bottom plate, one side of each foldable iron screen is connected to the rotating seat bottom plate, the other side is connected to the frame of the mounting frame, and the X-axis driving mechanism is entirely covered.

[0007] In a preferable embodiment of the utility model, two tow chain grooves are symmetrically arranged in the mounting frame, and the tow chain grooves are fixed to the inner side of the X-axis sliding rail.

[0008] The utility model discloses the beneficial effect is: the utility model is according to the need of resin automatic welding process and provides a kind of special device, so that workpiece is placed in the utility model can reciprocate on the X-axis of base plate simultaneously also can carry out rotary motion according to need, so that eliminate welding blind area, meet the accurate positioning requirement of space position when welding gun welding, in combination with the Z-axis drive mechanism and Y-axis drive mechanism on welding gun. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is the overhead structure schematic diagram of a preferable embodiment of the utility model;

[0010] Figure 2 It is Figure 1 The overhead structure diagram shown removes the structure schematic diagram of terraced type positioning workbench rear structure;

[0011] Figure 3 It is the bottom view structure schematic diagram of a preferable embodiment of the utility model;

[0012] Figure 4 It is the structure schematic diagram of the terraced type positioning workbench;

[0013] Figure 5 It is the local structure enlarged schematic diagram of the terraced type positioning workbench shown;

[0014] Figure 6 It is the structure schematic diagram of the rotary mechanism shown;

[0015] Figure 7 It is the back structure schematic diagram of the rotary mechanism shown;

[0016] The marks of each component in the drawing are as follows:

[0017] 1.X-axis motor, 2.X-axis transmission screw, 3.X-axis transmission screw support, 4.X-axis sliding rail, 5.sliding block, 6.nut seat, 7.X-direction screw nut, 8.rotary seat bottom plate, 9.terraced type positioning workbench, 10.pneumatic

[0018] rotary seat, 11.foldable iron screen, 12.tow chain groove;

[0019] 901.positioning groove, 902.T-shaped sliding groove, 903.top plate, 904.thumb pin, 905.connection bolt, 906.positioning bolt, 907.positioning bottom hole, 908.trigger type inductor, 909.photocell inductor. DETAILED DESCRIPTION

[0020] The advantages and features of the present application can be more easily understood by those skilled in the art, and the protection scope of the present application can be more clearly defined, by the preferred embodiments of the present application in combination with the accompanying drawings.

[0021] Please refer to Figures 1 to 7 The present application embodiment comprises:

[0022] A workpiece rotating positioning device for a resin automatic welding machine, the workpiece rotating positioning device is installed on the base of the resin automatic welding machine, and the workpiece rotating positioning device comprises an X-axis driving mechanism, a rotating mechanism and a terrace type positioning workbench 9; the X-axis driving mechanism comprises a mounting frame, an X-axis driving motor 1, an X-axis transmission screw 2 and X-axis sliding rails 4, the mounting frame is installed at the middle position of the base along the direction of the X-axis, the X-axis driving motor 1, the X-axis transmission screw 2 and the X-axis sliding rails 4 are all arranged in the mounting frame, the X-axis sliding rails 4 are two in total and are symmetrically fixed on the two sides of the mounting frame, the X-axis driving motor 1 is fixed on one end of the mounting frame, one end of the X-axis transmission screw 2 is connected with the power output end of the X-axis driving motor 1, and the other end is rotatably installed on the X-axis transmission screw support 3 arranged at the corresponding position of the base, the rotating mechanism comprises a pneumatic rotating seat 10 and a rotating seat bottom plate 8, the pneumatic rotating seat 10 is installed on the rotating seat bottom plate 8, a nut seat 6 is arranged at the back central position of the rotating seat bottom plate 8, an X-direction lead screw nut 7 matched with the rod body of the X-axis transmission screw 2 is fixedly installed in the middle of the nut seat 6, four sliding blocks 5 matched with the two X-axis sliding rails 4 are symmetrically arranged on the two sides of the nut seat 6, and the terrace type positioning workbench 9 is fixedly arranged at the bottom of the pneumatic rotating seat 10. In this way, the terrace type positioning workbench can rotate and adjust the welding posture while moving linearly along the X-axis reciprocatingly according to the actual requirements of the welding machine, and together with the Y-axis driving and Z-axis driving of the welding machine, the dead angle in the welding process is almost eliminated.

[0023] The middle of the terrace type positioning workbench 9 is provided with a positioning groove 901, and a plurality of positioning steps are arranged in the positioning groove 901. Each set of positioning steps can accommodate a workpiece of one size. A workpiece sensor is installed on each set of positioning steps. The workpiece sensor has two types, one is a trigger type sensor 908, and the other is a photoelectric sensor 909. The two types of sensors are respectively arranged on both sides of the Y direction middle line of the positioning groove. In this way, the positioning groove 901 can simultaneously meet the welding requirements of multiple workpieces of different specifications. Moreover, after each type of workpiece is loaded into the positioning groove 901, the corresponding workpiece sensor will be triggered, and the computer of the welding device will confirm the workpiece model according to the signal and then output the corresponding welding program. The workpiece sensor is divided into two types, and the workpiece can be confirmed by two different signal sources, thereby avoiding the problem of missed reporting caused by damage to a single signal source. The X direction middle line of the positioning groove 901 is symmetrically provided with six lateral stability structures. Each lateral stability structure includes a top plate 903, a top pin 904, and two T-shaped sliding grooves 902. The two T-shaped sliding grooves 902 are perpendicular to the two side walls of the positioning groove 901. The top plate 903 is symmetrically provided with a screw nut at both ends, which can be clamped into the connecting bolt 905 of the T-shaped sliding groove 902. A positioning bolt hole is arranged in the middle of the top plate 903. Two positioning bottom holes 907 are arranged on the surface of the terrace type positioning workbench 9 along the movement track of the positioning bolt. The screw rod of the positioning bolt 906 passes through the positioning bolt hole and abuts against the corresponding positioning bottom hole according to the distance from the workpiece 1. The top pin holes on both sides of the positioning bolt hole are symmetrically arranged in parallel with the surface of the terrace type positioning workbench 9. A top pin 904 is arranged in each top pin hole. The top pin 904 and the top pin hole are connected through a threaded structure. In this way, during actual operation, the bottom of the workpiece is first placed in the positioning groove 901, and then each top plate 903 is moved along the track formed by the corresponding T-shaped sliding groove 902 to the position above the corresponding positioning bottom hole according to the shape of the workpiece. Then, according to the size of the workpiece, the positioning bolt 906 is screwed into the corresponding positioning bottom hole 907, and the connecting bolts 905 on both sides are tightened. Finally, the top pin 904 on each top plate 903 is rotated to press the workpiece on both sides. In this way, the workpiece can be adjusted in position and attitude according to the welding requirements without accidental shaking and falling, which significantly improves the stability during automatic welding.

[0024] The mounting frame is provided with two foldable iron screens 11, which are respectively arranged on both sides of the rotating seat bottom plate 8. Each foldable iron screen 11 is connected to one side of the rotating seat bottom plate 8 and the other side of the frame of the mounting frame, covering the X axis driving mechanism. In this way, the welding slag falling during the welding process will not fall on the X axis track 4 and the X axis transmission screw rod 2, which can effectively prevent the welding slag from affecting the running stability of the entire X axis driving mechanism.

[0025] Two symmetrical tow chain grooves 12 are also arranged in the mounting frame, and the tow chain grooves are fixed to the inner side of the X-axis sliding rail 4. The tow chain during movement can be placed in the tow chain grooves to prevent the tow chain from being damaged by dragging on the ground.

[0026] The above is only an embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. A workpiece rotating positioning device for a resin automatic welding machine, said workpiece rotating positioning device being mounted on a base of said resin automatic welding machine, characterized by, The workpiece rotating positioning device comprises an X-axis driving mechanism, a rotating mechanism and a terrace type positioning workbench. The X-axis driving mechanism comprises a mounting frame, an X-axis driving motor, an X-axis transmission screw rod and X-axis slide rails, the mounting frame is installed at the middle position of the base along the direction of the X-axis, the X-axis driving motor, the X-axis transmission screw rod and the X-axis slide rails are arranged in the mounting frame, the X-axis slide rails are two in total and are symmetrically fixed at the two sides of the mounting frame, the X-axis driving motor is fixed at one end of the mounting frame, one end of the X-axis transmission screw rod is connected with the power output end of the X-axis driving motor, and the other end is rotatably installed on the X-axis transmission screw rod support arranged at the corresponding position of the base, the rotating mechanism comprises a pneumatic rotating seat and a rotating seat bottom plate, the pneumatic rotating seat is installed on the rotating seat bottom plate, a nut seat is arranged at the back central position of the rotating seat bottom plate, an X-direction lead screw nut matched with the rod body of the X-axis transmission screw rod is fixedly installed in the middle of the nut seat, a plurality of slide blocks matched with the two X-axis slide rails are symmetrically arranged at the two sides of the nut seat, and the terrace type positioning workbench is fixed at the bottom of the pneumatic rotating seat.

2. The workpiece rotating positioning device for a resin automatic welding machine according to claim 1, characterized by, A positioning groove is arranged in the middle of the tabletop of the terrace type positioning workbench, a plurality of positioning steps are arranged in the positioning groove, each group of positioning steps can adapt to a workpiece of one size, and a workpiece inductor is installed on each group of positioning steps.

3. The workpiece rotating positioning device for a resin automatic welding machine according to claim 2, wherein The workpiece inductors are two in total, one is a trigger type inductor, and the other is a photoelectric inductor, and the two inductors are arranged at the two sides of the Y-direction middle line of the positioning groove.

4. The workpiece rotating positioning device for a resin automatic welding machine according to claim 2, wherein A plurality of lateral stabilizing structures are symmetrically arranged at the two sides of the X-direction middle line of the positioning groove.

5. The workpiece rotating positioning device for a resin automatic welding machine according to claim 4, wherein Each lateral stabilizing structure comprises a top plate, a top pin and two T-shaped sliding grooves, the two T-shaped sliding grooves are arranged perpendicularly to the groove wall of the positioning groove, screw nuts are symmetrically installed at the two ends of the top plate, the screw nuts can be clamped into the connecting bolts of the T-shaped sliding grooves, a positioning bolt hole is arranged above the middle of the top plate, at least one positioning bottom hole is arranged on the tabletop of the terrace type positioning workbench, the screw rod of the positioning bolt is arranged through the positioning bolt hole and abuts against the corresponding positioning bottom hole, top pin holes parallel to the tabletop are symmetrically arranged at the two sides of the positioning bolt hole, a top pin is installed in each top pin hole, and the top pin and the top pin hole are connected through a threaded structure.

6. The workpiece rotational positioning device for a resin automatic welder according to claim 1, characterized by, Two foldable iron screens are installed on the mounting frame, the two foldable iron screens are respectively installed at the two sides of the rotating seat bottom plate, one side of each foldable iron screen is connected to the rotating seat bottom plate, the other side is connected to the frame of the mounting frame, and the X-axis driving mechanism is completely covered.

7. The workpiece rotating positioning device for a resin automatic welding machine according to claim 1, wherein Two drag chain grooves are symmetrically arranged in the mounting frame, and the drag chain grooves are fixed to the inner sides of the X-axis slide rails.

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