Portal robot welding station

Abstract

The invention relates to the technical field of welding stations, in particular to a gantry robot welding station which comprises a head and tail frame positioner, a welding tool installed on the head and tail frame positioner, a movable ground rail arranged on one side and a welding robot moving on the movable ground rail, the welding robot is connected with a welding system, and the welding tool comprises a tool frame. The whole tool frame is in a rectangular shape, a plurality of moving assemblies are connected to the tool frame in a sliding mode, channel steel positioning assemblies for fixing channel steel and jacking assemblies for supporting the channel steel are distributed at the top ends of the moving assemblies, and an end face limiting assembly is perpendicularly fixed to the top end of one side of the tool frame. The two ends of the tool frame are vertically and fixedly provided with head and tail frame rotating discs connected with the head and tail frame position changing machine, and one side of the tool frame is provided with a line groove assembly for collecting lines. By adjusting the distance between the channel steel positioning assemblies, the device can adapt to the widths of different portal frames, by jacking of the jacking assemblies and increasing of the auxiliary height, the device can adapt to the heights of different types of portal frame channel steel and can adapt to different non-standard parts, and the practicability is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of welding workstations, and in particular to a gantry robot welding workstation. Background Art

[0002] The gantry robot welding workstation mainly completes the welding of the welds of the gantry structural parts. First, the handling robot grabs the workpiece and places it on the welding fixture, and then the welding robot performs welding. After welding, it is placed on the subsequent conveyor line by the handling robot for the subsequent processes.

[0003] However, there are more and more types and models of existing forklifts, and they are all non-standard. Therefore, when welding and processing the forklift gantry, a welding workstation for the inner and middle gantries with different sizes needs to be positioned to complete the welding and processing. However, due to the different types and models of the gantries used in forklifts, and even some of the gantry designs are non-standard, the existing welding workstations cannot well meet the welding and processing requirements of different types and sizes of gantries, making it difficult to meet the enterprise's requirements for gantry welding production.

[0004] Therefore, a gantry robot welding workstation is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a gantry robot welding workstation that can meet the welding requirements of different models and non-standard model forklift gantries, so as to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A gantry robot welding workstation includes a head and tail frame turntable, a welding fixture installed on the head and tail frame turntable, a moving ground rail arranged beside it, and a welding robot moving on the moving ground rail. The welding robot is connected to the welding system.

[0007] The welding fixture includes a fixture frame. The fixture frame is overall rectangular in shape. A number of moving components are slidably connected to the fixture frame. At the top of the moving components, there are a channel steel positioning component for fixing the channel steel and a jacking component for supporting the channel steel. At the top of one side of the fixture frame, an end face limiting component is vertically fixed. At both ends of the fixture frame, head and tail frame turntables connected to the head and tail frame turntable are vertically fixed. A wire groove component for collecting wires is provided on one side of the fixture frame.

[0008] Preferably, the moving component includes an I-beam slidably connected to the fixture frame. The I-beam is placed on the fixture frame. At both sides of the bottom end of the I-beam, sliding rails are fixed along the length direction of the fixture frame. At both sides of the bottom end of the fixture frame, sliding ways adapted to the sliding rails are fixed.

[0009] Preferably, a rack is fixed on one side surface of the fixture frame, and a driving member is installed at the bottom of the fixture frame. The driving member is a servo motor, and a gear meshing with the rack is fixed at the output end of the driving member.

[0010] Preferably, the channel steel positioning assembly includes a mounting base plate bolted to one side of the top end of the I-beam frame, and a lead screw structure is arranged on the mounting base plate along its length direction.

[0011] Preferably, sliding plates are symmetrically connected to the lead screw structure. On one side of the top end of the sliding plate, a clamping plate with a clamping groove is vertically fixed. On the other side of the top end of the sliding plate, a baffle is vertically fixed. A pushing block for pushing the channel steel into contact with the baffle is vertically movably connected to the baffle. On the other side of the baffle, a third cylinder is fixed. The output end of the third cylinder penetrates through the baffle and is fixed to the pushing block. A buckle capable of clamping the bottom edge of the channel steel downward is arranged inside the clamping plate.

[0012] Preferably, the jacking assembly includes support columns vertically connected to the other side of the top end of the I-beam frame. The number of support columns on each I-beam frame is four, two of which are used in cooperation and are symmetrically distributed on both sides of the top end of the I-beam frame. The tops of a group of support columns are jointly connected to a support plate.

[0013] Preferably, connecting blocks are vertically fixed to different groups of the support columns. Guide rods are vertically slidably connected to the connecting blocks. An installation plate is connected between the guide rods. A first cylinder for jacking up the installation plate is vertically fixed to the middle of the other side of the top end of the I-beam frame.

[0014] Preferably, the end face limiting assembly includes a fixed seat vertically fixed to the top end of one side of the tooling frame. A connecting plate is slidably connected to the end of the fixed seat facing the tooling frame. A pressing plate is vertically fixed to the middle of the connecting plate.

[0015] Preferably, a second cylinder for driving the linear sliding of the connecting plate is arranged in the middle of the fixed seat. A limiting plate is vertically fixed to the end of the fixed seat facing the pressing plate. Adjusting members are connected between the limiting plate and the four corners of the fixed seat. Limiting sliding plates slidably connected to the fixed seat are vertically fixed to both ends of the connecting plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the distance adjustment between the channel steel positioning assemblies in this application, it can adapt to the widths of gantry frames with different widths. Through the jacking of the jacking assembly and the auxiliary height increase, it can adapt to the heights of channel steels of different gantry frame models, and can adapt to different non-standard parts, increasing the practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1Overall structural view of the present invention; Figure 2 Structural view of the welding tooling of the present invention; Figure 3 Bottom view of the welding tooling of the present invention; Figure 4 Structural view of the moving component of the present invention; Figure 5 Structural view of the jacking component of the present invention; Figure 6 Structural view of the positioning component of the present invention; Figure 7 Structural view of the end face limiting component of the present invention; Figure 8 Left view of the end face limiting component of the present invention; Figure 9 Bottom view of the end face limiting component of the present invention.

[0019] Explanation of reference numerals in the drawings: 100, head and tailstock positioner; 200, welding tooling; 201, tooling frame; 202, moving component; 202a, I-beam frame; 202b, slide rail; 202c, slideway; 202d, driving member; 202e, gear; 202f, rack; 203, channel steel positioning component; 203a, mounting base plate; 203b, sliding plate; 203c, lead screw structure; 203d, clamping plate; 203e, buckle; 203f, baffle; 203g, pushing block; 203h, third cylinder; 204, jacking component; 204a, support column; 204b, support plate; 204c, connecting block; 204d, guide rod; 204e, mounting plate; 204f, first cylinder; 205, end face limiting component; 205a, fixed seat; 205b, connecting plate; 205c, pressing plate; 205d, second cylinder; 205e, limiting plate; 205f, adjusting member; 205g, limiting slide plate; 206, wire groove component; 207, head and tailstock turntable; 300, moving ground rail; 400, welding robot. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1 to 9 , the present invention provides a technical solution: A gantry robot welding station includes a head and tail frame positioner 100, a welding fixture 200 installed on the head and tail frame positioner 100, a mobile ground rail 300 arranged beside, and a welding robot 400 moving on the mobile ground rail 300. The welding robot 400 is connected to a welding system.

[0022] The welding fixture 200 includes a fixture frame 201. The fixture frame 201 is overall rectangular. A plurality of moving components 202 are slidably connected to the fixture frame 201. On the top ends of the moving components 202, there are a channel steel positioning component 203 for fixing the channel steel and a jacking component 204 for supporting the channel steel. On one side top end of the fixture frame 201, an end face limiting component 205 is vertically fixed. At both ends of the fixture frame 201, head and tail frame turntables 207 connected to the head and tail frame positioner 100 are vertically fixed. A wire groove component 206 for collecting wires is arranged on one side of the fixture frame 201.

[0023] Specifically, as Figures 1 - 5 shown, the moving component 202 includes an I-beam 202a slidably connected to the fixture frame 201. The I-beam 202a is mounted on the fixture frame 201. On both sides of the bottom end of the I-beam 202a, slide rails 202b are fixed along the length direction of the fixture frame 201. On both sides of the bottom end of the fixture frame 201, slide ways 202c adapted to the slide rails 202b are fixed.

[0024] A rack 202f is fixed to one side surface of the fixture frame 201. A driving member 202d is installed at the bottom of the fixture frame 201. The driving member 202d is a servo motor. The output end of the driving member 202d is fixed with a gear 202e meshing with the rack 202f. When the driving member 202d is started, the driving member 202d is a combination of a driving motor and a gearbox. The output shaft of the driving motor is in transmission with the gearbox, and the output end of the gearbox is in transmission with the gear 202e. The driving member 202d fixed on the I-beam 202a drives the gear 202e to rotate meshingly on the rack 202f, thereby driving the I-beam 202a to linearly move on the fixture frame 201. During the movement, the slide rails 202b and the slide ways 202c are slidably connected, so that the I-beam 202a stably moves on the fixture frame 201, thereby adjusting the specified positions of the moving components 202 at different positions, and further adapting to different gantry welding requirements.

[0025] Specifically, as Figure 1 、 Figure 6 shown, the channel steel positioning component 203 includes a mounting base plate 203a bolted to one side top end of the I-beam 202a. A lead screw structure 203c is arranged along the length direction of the mounting base plate 203a.

[0026] On the screw rod structure 203c, sliding plates 203b are symmetrically connected. On one side of the top end of the sliding plate 203b, a clamping plate 203d with a clamping groove is vertically fixed. On the other side of the top end of the sliding plate 203b, a baffle plate 203f is vertically fixed. A pushing block 203g in contact with the baffle plate 203f is vertically movably connected to the baffle plate 203f. On the other side of the baffle plate 203f, a third cylinder 203h is fixed. The output end of the third cylinder 203h penetrates through the baffle plate 203f and is fixed to the pushing block 203g. Inside the clamping plate 203d, a buckle 203e that can be lowered to clamp the bottom edge of the channel steel is provided. Place two channel steels correspondingly between the baffle plate 203f and the clamping plate 203d. The bottom of the channel steel is supported by the buckle 203e. The third cylinder 203h drives the pushing block 203g to push the channel steel towards the clamping plate 203d, and then the pushing block 203g cooperates with the clamping plate 203d to clamp and fix the channel steel between them. The screw rod structure 203c includes a motor fixed to the I-shaped frame 203a. The output end of the motor is fixed with a bidirectional threaded rod. The bidirectional threaded rod is actually a kind of ball screw. The midpoint of the bidirectional threaded rod is centered on the midpoint between the two sliding plates. The thread directions on both sides are opposite. The threaded rod penetrates and is threadedly connected to the two sliding plates. Then, the motor of the screw rod structure 203c drives the bidirectional threaded rod to rotate. Under the threaded connection between the sliding plate 203b and the bidirectional threaded rod, by controlling the forward and reverse rotation of the motor, under the threaded connection between the two sliding plates 203b and the bidirectional threaded rod, the distance between the two sliding plates 203b is adjusted, so as to adjust the distance between the channel steels clamped and fixed between the baffle plate 203f and the clamping plate 203d at the top of the two sliding plates 203b.

[0027] Specifically, as Figures 1 - 5 shown, the jacking assembly 204 includes support columns 204a vertically connected to the other side of the top end of the I-shaped frame 202a. The number of support columns 204a on each I-shaped frame 202a is four. Two of them are used in cooperation and are symmetrically distributed on both sides of the top end of the I-shaped frame 202a. The tops of a group of support columns 204a are jointly connected to a support plate 204b.

[0028] Connecting blocks 204c are vertically fixed to different groups of the support columns 204a. Guide rods 204d are vertically slidably connected to the connecting blocks 204c. An installation plate 204e is connected between the guide rods 204d. A first cylinder 204f that vertically fixes the installation plate 204e is vertically fixed to the middle of the other side of the top end of the I-shaped frame 202a The channel steel is placed on the support plate 204b. When the width between the channel steels cannot be placed on the support plate 204b, the first cylinder 204f drives the installation plate 204e to move upward, thereby making up for the required width for installation. And when the height of the support plate 204b is insufficient, the first cylinder 204f can drive the installation plate 204e to move upward to jack up the channel steel, increasing the practicality.

[0029] Specifically, as Figure 1 , Figures 7 - 9 shown, the end face limiting component 205 includes a fixed seat 205a vertically fixed at the top end of one side of the tooling rack 201. A connecting plate 205b is slidably connected to one end of the fixed seat 205a facing the tooling rack 201. A pressing plate 205c is vertically fixed in the middle of the connecting plate 205b.

[0030] A second cylinder 205d for driving the linear sliding of the connecting plate 205b is provided in the middle of the fixed seat 205a. A limiting plate 205e is vertically fixed at one end of the fixed seat 205a facing the pressing plate 205c. An adjusting member 205f is connected between the four corners of the limiting plate 205e and the fixed seat 205a. Limiting sliding plates 205g slidably connected to the fixed seat 205a are vertically fixed at both ends of the connecting plate 205b.

[0031] During operation, the limiting plate 205e and the pressing plate 205c are in a separated state, and the channel steel is located between the two. Then, by controlling the retraction of the second cylinder 205d, the connecting plate 205b connected to the output end of the second cylinder 205d is driven. Since the pressing plate 205c is fixed to the connecting plate 205b, the pressing plate 205c is driven to displace, thereby cooperating with the limiting plate 205e to realize the clamping and fixing of the channel steel. And in order to further ensure the linear movement of the pressing plate 205c, it is realized under the sliding connection of the limiting sliding plate 205g and the fixed seat 205a. At the same time, since the limiting plate 205e is fixed to the 205a through the adjusting member 205f, and the adjusting member 205f is a bolt, the position of the limiting plate 205e on the fixed seat 205a can be adjusted by screwing the adjusting member 205f with a tool according to the size of the channel steel when needed later to meet the production requirements.

[0032] Working principle: Start the driving member 202d. The driving member 202d is a combination of a driving motor and a gearbox. The output shaft of the driving motor is in transmission with the gearbox, and the output end of the gearbox is in transmission with the gear 202e. The driving member 202d fixed on the I-shaped frame 202a drives the gear 202e to rotate meshingly on the rack 202f, thereby driving the I-shaped frame 202a to linearly move on the tooling rack 201. During the movement, the I-shaped frame 202a is stably moved on the tooling rack 201 by using the sliding connection between the slide rail 202b and the slideway 202c, so as to adjust the specified positions of the moving components 202 at different positions, and thus adapt to different gantry welding requirements; Place two channel steels correspondingly between the baffle 203f and the clamping plate 203d. The bottom of the channel steel is supported by the buckle 203e. The third cylinder 203h drives the pushing block 203g to push the channel steel towards the clamping plate 203d. Then, the pushing block 203g cooperates with the clamping plate 203d to clamp and fix the channel steel between them. The screw rod structure 203c includes a motor fixed to the I-shaped frame 203a. A bidirectional threaded rod is fixed to the output end of the motor. The bidirectional threaded rod is actually a kind of ball screw. The midpoint of the bidirectional threaded rod is centered on the midpoint between the two sliding plates, and the thread directions on both sides are opposite. The threaded rod passes through and is threadedly connected to the two sliding plates. Then, the motor of the screw rod structure 203c drives the bidirectional threaded rod to rotate. Under the threaded connection between the sliding plate 203b and the bidirectional threaded rod, by controlling the forward and reverse rotation of the motor, under the threaded connection between the two sliding plates 203b and the bidirectional threaded rod, the distance between the two sliding plates 203b is adjusted, so as to adjust the distance between the channel steels clamped and fixed between the baffle 203f and the clamping plate 203d at the tops of the two sliding plates 203b; The channel steel is placed on the support plate 204b. When the width between the channel steels cannot be placed on the support plate 204b, the first cylinder 204f drives the mounting plate 204e to move upward, thereby making up for the width required for installation. And when the height of the support plate 204b is insufficient, the first cylinder 204f can drive the mounting plate 204e to move upward to lift the channel steel, increasing the practicability; During operation, the limit plate 205e and the pressing plate 205c are in a separated state, and the channel steel is located between them. Then, by controlling the second cylinder 205d to retract, the connecting plate 205b connected to the output end of the second cylinder 205d is driven. Since the pressing plate 205c is fixed to the connecting plate 205b, the pressing plate 205c is driven to displace, thereby cooperating with the limit plate 205e to clamp and fix the channel steel. And in order to further ensure the linear movement of the pressing plate 205c, it is realized under the sliding connection between the limit sliding plate 205g and the fixed seat 205a. At the same time, since the limit plate 205e is fixed to the 205a through the adjusting member 205f, and the adjusting member 205f is a bolt, when needed later, the position of the limit plate 205e on the fixed seat 205a can also be adjusted by turning the adjusting member 205f with a tool according to the size of the channel steel to meet the production requirements.

[0033] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A gantry robot welding station, characterized in that: It includes a headstock and tailstock positioner (100), a welding fixture (200) installed on the headstock and tailstock positioner (100), a movable ground rail (300) arranged beside, and a welding robot (400) moving on the movable ground rail (300). The welding robot (400) is connected to the welding system; The welding fixture (200) includes a fixture frame (201). The fixture frame (201) is overall rectangular. A number of moving components (202) are slidably connected to the fixture frame (201). On the top of the moving components (202), there are a channel steel positioning component (203) for fixing the channel steel and a lifting component (204) for supporting the channel steel. On one side top of the fixture frame (201), an end face limiting component (205) is vertically fixed. At both ends of the fixture frame (201), headstock and tailstock turntables (207) connected to the headstock and tailstock positioner (100) are vertically fixed. On one side of the fixture frame (201), there is a wire groove component (206) for collecting wires.

2. A gantry robot welding station according to claim 1, characterized in that: The moving component (202) includes an I-shaped frame (202a) slidably connected to the fixture frame (201). The I-shaped frame (202a) is placed on the fixture frame (201). On both sides of the bottom end of the I-shaped frame (202a), slide rails (202b) are fixed along the length direction of the fixture frame (201). On both sides of the bottom end of the fixture frame (201), slide ways (202c) adapted to the slide rails (202b) are fixed.

3. A gantry robot welding station according to claim 2, characterized in that: A rack (202f) is fixed on one side surface of the fixture frame (201). A driving member (202d) is installed at the bottom of the fixture frame (201). The driving member (202d) is a servo motor. The output end of the driving member (202d) is fixed with a gear (202e) meshing with the rack (202f).

4. A gantry robot welding station according to claim 1, characterized in that: The channel steel positioning component (203) includes a mounting base plate (203a) bolted to one side of the top end of the I-shaped frame (202a). A lead screw structure (203c) is arranged along the length direction of the mounting base plate (203a).

5. The gantry robot welding station according to claim 4, characterized in that: On the lead screw structure (203c), sliding plates (203b) are symmetrically connected. On one side of the top end of the sliding plate (203b), a clamping plate (203d) with a card slot is vertically fixed. On the other side of the top end of the sliding plate (203b), a baffle plate (203f) is vertically fixed. On the baffle plate (203f), a pushing block (203g) for pushing the channel steel into contact with the baffle plate (203f) is vertically movably connected. On the other side of the baffle plate (203f), a third cylinder (203h) is fixed. The output end of the third cylinder (203h) penetrates through the baffle plate (203f) and is fixed to the pushing block (203g). A buckle (203e) capable of clamping the bottom edge of the channel steel downward is built in the clamping plate (203d).

6. The gantry robot welding station according to claim 1, wherein: The lifting component (204) includes support columns (204a) vertically connected to the other side of the top end of the I-shaped frame (202a). The number of support columns (204a) on each I-shaped frame (202a) is four. Two of them are used in cooperation as a group and are symmetrically distributed on both sides of the top end of the I-shaped frame (202a). The tops of a group of support columns (204a) are jointly connected to a support plate (204b).

7. The gantry robot welding station according to claim 6, wherein: A connecting block (204c) is vertically fixed to each of the support columns (204a) in different groups. A guide rod (204d) is vertically and slidably connected to the connecting block (204c). An installation plate (204e) is connected between the guide rods (204d). A first air cylinder (204f) for jacking up the installation plate (204e) is vertically fixed to the middle of the other side of the top end of the I-shaped frame (202a).

8. A gantry robot welding station according to claim 1, characterized in that: The end face limiting assembly (205) includes a fixed seat (205a) vertically fixed to the top end of one side of the tooling rack (201). A connecting plate (205b) is slidably connected to one end of the fixed seat (205a) facing the tooling rack (201). A pressing plate (205c) is vertically fixed to the middle of the connecting plate (205b).

9. The gantry robot welding station according to claim 8, wherein: A second air cylinder (205d) for driving the linear sliding of the connecting plate (205b) is provided in the middle of the fixed seat (205a). A limiting plate (205e) is vertically fixed to one end of the fixed seat (205a) facing the pressing plate (205c). An adjusting member (205f) is connected between the limiting plate (205e) and the four corners of the fixed seat (205a). Limiting sliding plates (205g) slidably connected to the fixed seat (205a) are vertically fixed to both ends of the connecting plate (205b).

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