Automatic seam searching welding robot

Abstract

The utility model relates to the technical field of welding robots, and discloses an automatic seam searching welding robot which comprises a bottom plate, a fixing seat is fixedly installed on the upper surface of the bottom plate, a welding mechanical arm is movably installed on the fixing seat, and a positioning box is fixedly installed at the position, corresponding to the welding mechanical arm, of the upper surface of the bottom plate. According to the utility model, the two groups of sliding rods, the telescopic probes and the like can alternately move up and down through the rotation of the transmission gear, and when one telescopic probe identifies a gap between two plates and moves to the position of the positioning box along with the plates, the transmission gear rotates under the driving of electric power to enable the group of telescopic probes to move upwards; one group of sliding rods, one telescopic probe and the like are driven to rotate, the other group of sliding rods, the other telescopic probe and the like are driven downwards, the other telescopic probe can recognize the gap between the second plate and the third plate, the two telescopic probes are used alternately, the gaps between the plates can be recognized continuously, and then the welding efficiency of the multiple plates is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding robot technical field especially relates to a kind of automatic seam-finding welding robots. BACKGROUND

[0002] With the rapid development of industry, welding technology plays a vital role in various fields. Traditional welding methods mainly rely on manual operation, but manual welding has many problems. For some high-precision welding tasks, manual welding often cannot meet the requirements. For example, in the fields of aerospace, automobile manufacturing, etc., the precision and quality of welding are extremely high, and even small welding defects can have a significant impact on the performance and safety of the product.

[0003] To solve the above problems, automated welding technology has gradually developed. Although some welding robots have appeared on the market, most of the existing welding robots need to be pre-set welding paths. When welding multiple plates, the welding robot cannot accurately identify the gap at the contact position of the multiple plates and weld them according to the pre-set welding path, which requires manual assistance to identify the gap during the welding process of the multiple plates, resulting in low welding efficiency. Therefore, we propose an automatic seam-finding welding robot. SUMMARY

[0004] The utility model mainly solves the technical problems existing in the prior art and provides an automatic seam-finding welding robot.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme. An automatic seam-finding welding robot includes a bottom plate, a fixed seat is fixedly installed on the upper surface of the bottom plate, a welding mechanical arm is movably installed on the fixed seat, a positioning box is fixedly installed at the corresponding position of the upper surface of the bottom plate and the welding mechanical arm, the upper surface of the positioning box is flush with the upper surface of the bottom plate, mounting brackets are fixedly installed on both sides of the fixed seat, two sliding rods are slidingly installed between the ends of the two mounting brackets, sliding grooves are formed in the bottom surfaces of the two sliding rods, sliding blocks are slidingly installed in the sliding grooves, telescopic probes are movably connected to the bottom surfaces of the sliding blocks, transmission gears are rotatably installed on the outer walls of the ends of the two mounting brackets between the two sliding rods, a plurality of tooth blocks meshing with the transmission gears are fixedly installed on the outer walls of the two ends of the two sliding rods, and an auxiliary assembly is further provided on both sides of the fixed seat.

[0006] As a preferred embodiment, the auxiliary assembly includes an extension bracket fixedly connected to the fixed seat, two fixed plates are fixedly installed on the bottom end of the extension bracket, and a squeezing cam is rotatably installed between the two fixed plates.

[0007] As preferred, the outer wall of one of the fixing plates is rotatably provided with a driven wheel at a position corresponding to the extrusion cam, and the driven wheel is fixedly connected to the center of the end of the extrusion cam, and the outer wall of the fixing plate is rotatably provided with a driving wheel engaged with the driven wheel above the driven wheel.

[0008] As preferred, the inside of the sliding groove is fixedly provided with a travel switch at a position corresponding to the positioning box, and the sliding block is used in cooperation with the travel switch.

[0009] As preferred, the upper surface of the positioning box is provided with two symmetrically arranged rectangular grooves, and the inside of each of the two rectangular grooves is slidably provided with a contact block.

[0010] As preferred, the inside of the rectangular groove is provided with a plurality of return springs below the contact block, and the two ends of each of the return springs are fixedly connected to the corresponding positions of the rectangular groove and the contact block.

[0011] As preferred, the cross section of the contact block is triangular, and the inside of the rectangular groove is provided with a plurality of pressure sensors below the contact block. Advantages

[0012] The utility model provides a kind of automatic seam welding robot. It has the following advantages:

[0013] (1) the automatic seam welding robot, by transmission gear rotation can make two groups of sliding rods and telescopic probe etc. alternately up and down activity, when one of telescopic probe identifies the gap between two plates and follows plate and moves to the position where positioning box is located, transmission gear is rotated under the drive of electricity to make this group telescopic probe move upwards, and another group of sliding rods and telescopic probe etc. are downward transmission, then another telescopic probe can identify the gap between second plate and third plate, two telescopic probes are alternately used, can continuously identify the gap between plate, to improve the efficiency of multiple plates when welding.

[0014] (2) the automatic seam welding robot, when the edge of two plates is welded, by setting extrusion cam on the both sides of fixed base can make the edge of two plates contact closely, to facilitate welding mechanical arm welding. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the description of embodiments or prior art. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other implementation drawings can be obtained without creative labor according to the provided drawings.

[0016] The structure, proportion, size and the like shown in the specification are only used to cooperate with the content disclosed in the specification, for understanding and reading by those skilled in the art, and do not have technical substantive significance, and any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model.

[0017] Figure 1 It is a whole structure schematic view of the utility model;

[0018] Figure 2 It is a whole structure front view schematic view of the utility model;

[0019] Figure 3 It is a sliding rod structure schematic view of the utility model;

[0020] Figure 4 It is a transmission gear structure installation schematic view of the utility model;

[0021] Figure 5 It is a sliding rod structure cross section schematic view of the utility model;

[0022] Figure 6 It is a contact block structure schematic view of the utility model.

[0023] Legend: 1, bottom plate; 2, fixed seat; 3, welding mechanical arm; 4, extension frame; 5, fixed plate; 6, extrusion cam; 7, driving wheel; 8, driven wheel; 9, mounting frame; 10, sliding rod; 11, transmission gear; 12, telescopic probe; 13, sliding block; 14, travel switch; 15, tooth block; 16, positioning box; 17, rectangular groove; 18, contact block. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] As Figures 1-6As shown, an automatic gap welding robot, including the bottom plate 1, the upper surface of the bottom plate 1 is fixedly installed with the fixed seat 2, the fixed seat 2 is movably installed with the welding mechanical arm 3, the upper surface of the bottom plate 1 is fixedly installed with the positioning box 16 corresponding to the welding mechanical arm 3, and the upper surface of the positioning box 16 is flush with the upper surface of the bottom plate 1, the both sides of the fixed seat 2 are fixedly installed with the mounting bracket 9, the both ends of the two mounting brackets 9 are slidably installed with the two sliding rods 10, the bottom surface of the two sliding rods 10 is provided with the sliding groove, the sliding groove is slidably installed with the sliding block 13, the bottom surface of the sliding block 13 is movably connected with the telescopic probe 12, the both ends of the two mounting brackets 9 are rotatably installed with the transmission gear 11 between the two sliding rods 10, and the both ends of the two sliding rods 10 are fixedly installed with the plurality of tooth blocks 15 on the side wall close to the transmission gear 11, and the both sides of the fixed seat 2 are further provided with the auxiliary assembly;

[0026] In use, the two plates to be welded are moved to the upper surface of the bottom plate 1 by the external transmission mechanism, when the first plate is conveyed to the bottom plate 1, the lower end of the telescopic probe 12 arranged above the first plate slides on the upper surface of the first plate, the first plate continues to slide on the bottom plate 1, when the telescopic probe 12 moves to the edge of the first plate, the lower end of the telescopic probe 12 moves downward to make the lowest point lower than the upper surface of the plate, at this time, the plate on the upper surface of the bottom plate 1 stops moving, then the second plate is conveyed to the bottom plate 1 by the external transmission mechanism, when the end of the telescopic probe 12 contacts the edges of the two plates, the two plates move synchronously with the telescopic probe 12, when the sliding block 13 connected with the telescopic probe 12 slides in the sliding groove to contact the travel switch 14, the welding mechanical arm 3 arranged at the upper end of the fixed seat 2 can weld the edges of the two plates.

[0027] As shown in the auxiliary assembly, Figure 2 The auxiliary assembly includes the extension frame 4 fixedly connected with the fixed seat 2, the bottom surface of the end of the extension frame 4 is fixedly installed with the two fixed plates 5, the two fixed plates 5 are rotatably installed with the extrusion cam 6; the end of the extrusion cam 6 is provided with the elastic pad, when the end of the extrusion cam 6 contacts the plate, the extrusion cam 6 can extrude and fix the plate by changing the inclination angle of the extrusion cam 6, or the extrusion cam 6 in rotation can push one of the plates to the other plate to extrude the two plates.

[0028] As shown in the auxiliary assembly, Figure 2As shown in the figure, the outer wall of one of the fixed plates 5 is rotatably provided with a driven wheel 8 at a position corresponding to the extrusion cam 6, and the driven wheel 8 is fixedly connected to the center of the end of the extrusion cam 6. The outer wall of the fixed plate 5 is rotatably provided above the driven wheel 8 with a driving wheel 7 engaged with the driven wheel 8. The driving wheel 7 is driven to rotate by an external motor, and the extrusion cam 6 fixedly connected to the driven wheel 8 is driven to rotate synchronously with the driving wheel 7 through the engagement between the driving wheel 7 and the driven wheel 8, thereby adjusting the extrusion cam 6.

[0029] As shown in the figure, the inside of the chute is fixedly provided with a travel switch 14 at a position corresponding to the positioning box 16, and the slide block 13 is used in cooperation with the travel switch 14. When the slide block 13 contacts the travel switch 14, the travel switch 14 can control the welding of the gap between the two plates through signal transmission. Figure 5 As shown in the figure, the upper surface of the positioning box 16 is provided with two symmetrically arranged rectangular grooves 17, and the inside of each rectangular groove 17 is slidably provided with a contact block 18. The positioning box 16 can indicate the position of the two plates during welding, and the user can adjust the position of the two plates so that the gap between the two plates is above the positioning box 16. The two contact blocks 18 can more accurately indicate the gap between the two plates.

[0030] Figure 6 As shown in the figure, the inside of the rectangular groove 17 is provided below the contact block 18 with a plurality of reset springs, and the two ends of the reset spring are fixedly connected to the corresponding positions of the rectangular groove 17 and the contact block 18. The plurality of reset springs can restore the contact block 18 to the initial position when the upper end of the contact block 18 is not under pressure.

[0031] As shown in the figure, the cross section of the contact block 18 is triangularly arranged, and the inside of the rectangular groove 17 is provided below the contact block 18 with a plurality of pressure sensors. The triangularly arranged contact block 18 can guide the plate when it moves on the upper surface of the base plate 1. When the plate is above the contact block 18, the contact block 18 can be extruded. When the two plates extrude the two contact blocks 18 respectively, the position between the two contact blocks 18 is the position of the welding gap between the two plates. Figure 6 As shown in the figure, the cross section of the contact block 18 is triangularly arranged, and the inside of the rectangular groove 17 is provided below the contact block 18 with a plurality of pressure sensors. The triangularly arranged contact block 18 can guide the plate when it moves on the upper surface of the base plate 1. When the plate is above the contact block 18, the contact block 18 can be extruded. When the two plates extrude the two contact blocks 18 respectively, the position between the two contact blocks 18 is the position of the welding gap between the two plates.

[0032] Figure 6 As shown in the figure, the cross section of the contact block 18 is triangularly arranged, and the inside of the rectangular groove 17 is provided below the contact block 18 with a plurality of pressure sensors. The triangularly arranged contact block 18 can guide the plate when it moves on the upper surface of the base plate 1. When the plate is above the contact block 18, the contact block 18 can be extruded. When the two plates extrude the two contact blocks 18 respectively, the position between the two contact blocks 18 is the position of the welding gap between the two plates.

[0033] ​​The utility model discloses a working principle: when using, the two plate materials that need to be welded are moved to the upper surface of bottom plate 1 through external transmission mechanism, when the first plate material is conveyed to the bottom plate 1, the lower end of telescopic probe 12 set up above the first plate material slides on the upper surface of the first plate material, and the first plate material continuously slides on the bottom plate 1, when telescopic probe 12 relatively moves to the edge of the first plate material, the telescopic telescopic probe 12 end downward activity makes its lower end minimum point lower than the upper surface of the plate material, at this moment, the plate material on the upper surface of bottom plate 1 stops moving, then, the second plate material is conveyed to the bottom plate 1 under the action of external transmission mechanism, when the end of telescopic probe 12 contacts the edge of the two plate materials, the two plate materials and telescopic probe 12 synchronous activity, when the sliding block 13 connected with telescopic probe 12 slides in the inside of the slide groove and contacts with travel switch 14, then the welding mechanical arm 3 set up on the upper end of fixed seat 2 can weld the edge of the two plate materials, when welding the edge of the two plate materials, the extrusion cam 6 set up on both sides of fixed seat 2 can make the edge of the two plate materials contact closely, thus facilitating welding mechanical arm 3 welding, and when using, the transmission gear 11 rotation can make two groups of sliding rods 10 and telescopic probe 12 etc. alternately up and down activity, when one of telescopic probe 12 identifies the gap between the two plate materials and moves to the position where the positioning box 16 is located, the transmission gear 11 rotates under the drive of power and makes this group telescopic probe 12 move upwards, and another group of sliding rods 10 and telescopic probe 12 etc. are driven downwards, then another telescopic probe 12 can identify the gap between the second plate material and the third plate material, two telescopic probes 12 are used alternately, and the gap between the plate materials can be continuously identified, and the efficiency of the multiple plate materials when welding is improved, then before welding mechanical arm 3 welds the two plate materials, the extrusion cam 6 set up above the first plate material can rotate to the lower end and extrude the upper end surface of the first plate material under the drive of driving wheel 7 through driven wheel 8, and the position of the first plate material is limited, wherein the end of extrusion cam 6 is provided with elastic rubber pad, and the setting of elastic rubber pad can change the rigid contact between the end of extrusion cam 6 and the plate material into elastic contact, when the first plate material is limited, by adjusting the extrusion cam 6 above the second plate material, the end of extrusion cam 6 can contact the plate material and extrude the second plate material to the direction where the first plate material is located, so that the edges of the two plate materials are extruded, when the second plate material moves to the first plate material, the edge of the first plate material is above one of the contact blocks 18, when the edge of the second plate moves to the upper side of another contact block 18, then the position of the gap between the two plate materials can be positioned.

[0034] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. An automatic gap-finding welding robot, comprising a base plate (1), a fixed seat (2) is fixedly installed on the upper surface of the base plate (1), and a welding mechanical arm (3) is movably installed on the fixed seat (2), characterized in that: The upper surface of the bottom plate (1) is fixedly installed with a positioning box (16) at the corresponding position of the welding mechanical arm (3), the upper surface of the positioning box (16) is flush with the upper surface of the bottom plate (1), the two sides of the fixed seat (2) are fixedly installed with mounting racks (9), two sliding rods (10) are slidingly installed between the ends of the two mounting racks (9), sliding grooves are formed in the bottom surfaces of the two sliding rods (10), sliding blocks (13) are slidingly installed in the sliding grooves, telescopic probes (12) are movably connected to the bottom surfaces of the sliding blocks (13), transmission gears (11) are rotatably installed on the outer walls of the ends of the two mounting racks (9) between the two sliding rods (10), a plurality of tooth blocks (15) meshing with the transmission gears (11) are fixedly installed on the outer walls of the two ends of the two sliding rods (10) close to the transmission gears (11), and auxiliary assemblies are further arranged on the two sides of the fixed seat (2).

2. A robotic automatic seam-welding machine according to claim 1, characterized in that: The auxiliary assembly comprises an extension frame (4) fixedly connected to the fixed seat (2), two fixed plates (5) fixedly installed at the bottom end of the extension frame (4), and a squeezing cam (6) rotatably installed between the two fixed plates (5).

3. A seam-finding welding robot according to claim 2, characterized in that: The outer wall of one of the fixed plates (5) is rotatably installed with a driven wheel (8) at the corresponding position of the squeezing cam (6), the driven wheel (8) is fixedly connected to the center of the end of the squeezing cam (6), and the outer wall of the fixed plate (5) is rotatably installed with a driving wheel (7) meshing with the driven wheel (8) above the driven wheel (8).

4. A seam-finding welding robot according to claim 3, characterized in that: The inside of the sliding groove is fixedly installed with a travel switch (14) at the corresponding position of the positioning box (16), and the sliding block (13) is used in cooperation with the travel switch (14).

5. A seam-finding welding robot according to claim 4, characterized in that: The upper surface of the positioning box (16) is provided with two symmetrical rectangular grooves (17), and the inside of each rectangular groove (17) is slidingly installed with a contact block (18).

6. A seam-finding welding robot according to claim 5, characterized in that: A plurality of return springs are arranged below the contact block (18) in the rectangular groove (17), and the two ends of the return spring are fixedly connected to the corresponding positions of the rectangular groove (17) and the contact block (18).

7. A seam-finding welding robot according to claim 6, characterized in that: The cross section of the contact block (18) is triangular, and a plurality of pressure sensors are arranged below the contact block (18) in the rectangular groove (17).

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