Probe centering device for laser welding

Abstract

The utility model belongs to the technical field of probe centering, and discloses a probe centering device for laser welding, which comprises a cavity pipe, two arc-shaped grooves are formed outside the cavity pipe, six transmission rods are annularly arrayed on one side of two first mounting plates, limiting rods and third fixing blocks are fixedly mounted on the left sides and the right sides of two transmission blocks, and the limiting rods and the third fixing blocks are fixedly mounted on the left sides and the right sides of the two transmission blocks. Spring telescopic rods are installed at the bottoms of the four third fixing blocks, and ratchets are fixedly installed at the bottoms of the four spring telescopic rods. The three transmission rods form contraction force, a rubber pad makes contact with the surface of the probe, meanwhile, ratchets are clamped to the outer portion of a rack, a conveying block and a first fixing block are fixed, and then the probe for laser welding can be fixed into a cavity pipe, and the problems that after an existing probe centering device works for a long time, the probe frequently shakes, maintenance is trivial, and the service life of the probe is affected are solved. Not only is the economic cost of a user increased, but also the welding precision is reduced, and the product quality is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of probe centering, in particular to a probe centering device for laser welding. Background Art

[0002] Laser welding is an efficient and precise welding method that uses a high-energy-density laser beam as a heat source. It is one of the important aspects of the application of laser material processing technology. The probe centering device can fix the specific position of the probe at the center, and accurately measure and locate the workpiece to ensure that the laser beam is aligned with the correct position.

[0003] When laser welding steel pipes, the probe centering device often shakes due to long-term operation, and maintenance is relatively common, which not only increases the economic cost of users, but also reduces the accuracy of welding, thereby greatly reducing the quality of products. Therefore, a probe centering device for laser welding is proposed. Utility Model Content

[0004] In order to solve the problems raised in the above-mentioned background technology, the utility model provides a probe centering device for laser welding, which solves the problem that after the existing probe centering device works for a long time, the probe often shakes and the maintenance is relatively trivial, which not only increases the economic cost of the user, but also reduces the welding accuracy, thereby greatly reducing the quality of the product.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a probe centering device for laser welding, comprising a cavity tube, wherein two arc-shaped grooves are provided on the outside of the cavity tube, two mounting plates 1 and two mounting plates 2 are fixedly installed at the upper and lower ends of the cavity tube, racks are fixedly installed on the left and right sides of the inner walls of the two arc-shaped grooves, two transmission blocks are clamped inside the four racks, movable rings 1 are sleeved inside the two mounting plates 1, movable rings 2 are sleeved inside the two mounting plates 2, and a circular array on one side of the two mounting plates 1 There are six transmission rods, a fixed block one is fixedly installed on the top of the two movable rings one, a fixed block two is installed on one side of the two movable rings one and the two movable rings two, six limit blocks are arranged in a circular array on one side of the two movable rings one and the two movable rings two, rollers are sleeved on the bottom of the six transmission rods, rubber pads are sleeved on the outside of the six rollers, limit rods and fixed block three are fixedly installed on the left and right sides of the two transmission blocks, spring telescopic rods are installed on the bottom of the four fixed blocks three, and ratchets are fixed on the bottom of the four spring telescopic rods.

[0006] Preferably, the upper end of the transmission rod is hinged to one side of the mounting plate 1 and the mounting plate 2, and the transmission rod is movably mounted in the middle of the movable ring 1 and the movable ring 2.

[0007] Preferably, the limit blocks are hinged to the middle parts of the movable ring 1 and the movable ring 2 respectively, and the middle part of the transmission rod passes through the interior of the limit blocks.

[0008] Preferably, the two fixed blocks are connected to the two conveying blocks.

[0009] Preferably, arc grooves are formed in the middle of the four racks, and the four limiting rods are movably sleeved in the four arc grooves respectively.

[0010] Preferably, the tops of the two conveying blocks are concave-convex.

[0011] Preferably, the movable ring 1 is connected to the movable ring 2 via the fixed block 2.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model drives the fixed block to drive the movable ring 1, the movable ring 2, the fixed block 2 and the limit block to rotate respectively by pushing the transmission block, the upper end of the transmission rod rotates with the hinge of the mounting plate 1 as the central axis, and at the same time the lower end of the transmission rod drives the roller and the rubber pad to shrink inward along the limit block respectively, so that the three transmission rods form a shrinkage force and the rubber pad contacts with the probe surface, and at the same time the ratchet is clamped on the outside of the rack, and the transmission block and the fixed block are fixed, so that the laser welding probe can be fixed inside the cavity tube, avoiding the problem that the probe often shakes after the existing probe centering device works for a long time, and the maintenance is relatively trivial, which not only increases the economic cost of the user, but also reduces the accuracy of welding and greatly reduces the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall appearance of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the installation of the transmission rod of the utility model structure;

[0016] Figure 3 It is a schematic diagram of local parts of the structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the cooperation between the limit block and the transmission rod of the utility model structure;

[0018] Figure 5 It is an exploded schematic diagram of local parts of the structure of the utility model;

[0019] Figure 6 This is a schematic diagram of the ratchet installation of the utility model structure;

[0020] Figure 7 It is a schematic diagram of the structural section of the utility model.

[0021] In the figure: 1, cavity tube; 2, arc groove; 3, rack; 4, transmission block; 5, mounting plate one; 6, mounting plate two; 7, transmission rod; 8, fixed block one; 9, movable ring one; 10, movable ring two; 11, fixed block two; 12, limit block; 13, roller; 14, rubber pad; 15, limit rod; 16, fixed block three; 17, spring telescopic rod; 18, ratchet. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figures 1 to 7 As shown, the utility model provides a probe centering device for laser welding, comprising a cavity tube 1, two arc-shaped grooves 2 are arranged on the outside of the cavity tube 1, two mounting plates 1 5 and two mounting plates 2 6 are fixedly installed at the upper and lower ends of the cavity tube 1, racks 3 are fixedly installed on the left and right sides of the inner walls of the two arc-shaped grooves 2, two transmission blocks 4 are clamped inside the four racks 3, movable rings 1 9 are sleeved inside the two mounting plates 1 5, movable rings 2 10 are sleeved inside the two mounting plates 2 6, six transmission rods 7 are arranged in a circular array on one side of the two mounting plates 1 5, and two movable rings 10 are sleeved inside the two mounting plates 2 6. A fixed block 18 is fixed on the top of the moving ring 1 9, a fixed block 2 11 is installed on one side of the two movable rings 1 9 and the two movable rings 2 10, six limit blocks 12 are arranged in a circular array on one side of the two movable rings 1 9 and the two movable rings 2 10, rollers 13 are sleeved on the bottom of the six transmission rods 7, and rubber pads 14 are sleeved on the outside of the six rollers 13, limit rods 15 and fixed blocks 3 16 are fixed on the left and right sides of the two transmission blocks 4, spring telescopic rods 17 are installed on the bottom of the four fixed blocks 3 16, and ratchets 18 are fixed on the bottom of the four spring telescopic rods 17.

[0024] The above scheme is adopted: by placing the probe inside the cavity tube 1, pushing the transmission block 4 to drive the limit rod 15 to move along the arc groove opened inside the rack 3, at this time, the transmission block 4 drives the fixed block 8 and drives the movable ring 1 9, the movable ring 2 10, the fixed block 2 11 and the limit block 12 to rotate, the upper end of the transmission rod 7 rotates with the hinge as the central axis, and the lower end of the transmission rod 7 drives the roller 13 and the rubber pad 14 to shrink inward along the limit block 12, at this time, the rubber pad 14 contacts the surface of the probe, and the ratchet 18 is clamped on the outside of the rack 3, the transmission block 4 and the fixed block 8 are fixed, and the laser welding probe can be fixed inside the cavity tube 1.

[0025] like Figure 3 and Figure 4 As shown, the upper end of the transmission rod 7 is hinged to one side of the mounting plate 1 5 and the mounting plate 2 6 respectively, and the transmission rod 7 is movably installed in the middle of the movable ring 1 9 and the movable ring 2 10, the limit block 12 is hinged to the middle of the movable ring 1 9 and the movable ring 2 10 respectively, and the middle part of the transmission rod 7 passes through the interior of the limit block 12.

[0026] By adopting the above scheme, the upper ends of the three transmission rods 7 can be driven to rotate around the hinge as the central axis through the rotation of the fixed block 8, and at the same time, the lower ends of the three transmission rods 7 respectively drive the rollers 13 and the rubber pads 14 to shrink inward along the limit block 12 to contact the probe surface.

[0027] like Figure 1 and Figure 6 As shown, two fixed blocks 8 are connected to two conveying blocks 4, arc grooves are provided in the middle of four racks 3, and four limiting rods 15 are movably sleeved in the inside of the four arc grooves respectively.

[0028] By adopting the above scheme, the limiting rod 15 can be driven to move along the arc groove opened inside the rack 3 by pushing the transmission block 4, and at the same time, the transmission block 4 and the fixed block 1 8 can drive the movable ring 1 9, the movable ring 2 10, the fixed block 2 11 and the limiting block 12 to rotate.

[0029] like Figure 3 and Figure 6 As shown, the tops of the two conveying blocks 4 are concave-convex, and the movable ring 1 9 and the movable ring 2 10 are connected through the fixed block 2 11.

[0030] By adopting the above solution, the tops of the two conveying blocks 4 are concave-convex. When the user operates, the concave-convex tops of the two conveying blocks 4 can increase the friction between the hand and the conveying blocks 4.

[0031] The working principle and use process of this utility model:

[0032] Before laser welding the steel pipe, the staff first places the probe inside the cavity tube 1, and then pushes the transmission block 4 and the limit rod 15 to move along the arc groove opened inside the rack 3. At the same time, the transmission block 4 drives the fixed block 8 and drives the movable ring 9, the movable ring 10, the fixed block 11 and the limit block 12 to rotate. At this time, the upper end of the transmission rod 7 rotates with the hinge as the central axis, and at the same time, the lower end transmission rod 7 drives the roller 13 and the rubber pad 14 to shrink inward along the limit block 12. At this time, the rubber pad 14 contacts the surface of the probe. Under the principle of ratchet teeth, the ratchet teeth 18 are clamped on the outside of the rack 3, and the transmission block 4 and the fixed block 8 are fixed, so that the laser welding probe can be fixed inside the cavity tube 1.

[0033] When the probe is taken out, firstly, the spring telescopic rod 17 is compressed respectively to make the ratchet 18 separate from the surface of the rack 3, and the transmission block 4 is pushed to drive the fixing block 8 and the mounting plate 5 to reset. The upper end of the transmission rod 7 rotates and resets with the hinge of the mounting plate 5 as the central axis. At the same time, the lower end of the transmission rod 7 drives the limit block 12, the roller 13 and the rubber pad 14 to reset. At this time, the rubber pad 14 is separated from the surface of the probe, and the probe can be taken out from the inside of the cavity tube 1.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A probe centering device for laser welding, comprising a hollow tube (1), characterized in that: The cavity tube (1) is provided with two arc-shaped grooves (2) on the outside, and two mounting plates (5) and two mounting plates (6) are fixedly installed at the upper and lower ends of the cavity tube (1). Racks (3) are fixedly installed on the left and right sides of the inner walls of the two arc-shaped grooves (2). Two transmission blocks (4) are clamped inside the four racks (3). The two mounting plates (5) are sleeved with movable rings (9) inside, and the two mounting plates (6) are sleeved with movable rings (10) inside. Six transmission rods (7) are arranged in a circular array on one side of the two mounting plates (5). A fixed block (8) is fixedly installed on the top of the two movable rings (9). A fixed block two (11) is installed on one side of the movable ring one (9) and the two movable rings two (10); six limit blocks (12) are arranged in a circular array on one side of the two movable rings one (9) and the two movable rings two (10); rollers (13) are sleeved at the bottom of the six transmission rods (7); rubber pads (14) are sleeved on the outside of the six rollers (13); limit rods (15) and fixed blocks three (16) are fixedly installed on the left and right sides of the two transmission blocks (4); spring telescopic rods (17) are installed at the bottom of the four fixed blocks three (16); ratchets (18) are fixedly installed at the bottom of the four spring telescopic rods (17).

2. The probe centering device for laser welding according to claim 1, characterized in that: The upper end of the transmission rod (7) is hinged to one side of the mounting plate 1 (5) and the mounting plate 2 (6), and the transmission rod (7) is movably mounted in the middle of the movable ring 1 (9) and the movable ring 2 (10).

3. The probe centering device for laser welding according to claim 1, characterized in that: The limit block (12) is hinged to the middle parts of the movable ring 1 (9) and the movable ring 2 (10), respectively, and the middle part of the transmission rod (7) passes through the interior of the limit block (12).

4. The probe centering device for laser welding according to claim 1, characterized in that: The two fixed blocks (8) are connected to the two conveying blocks (4).

5. The probe centering device for laser welding according to claim 1, characterized in that: A circular arc groove is formed in the middle of the four racks (3), and the four limiting rods (15) are respectively movably sleeved inside the four circular arc grooves.

6. The probe centering device for laser welding according to claim 1, characterized in that: The tops of the two conveying blocks (4) are concave-convex.

7. The probe centering device for laser welding according to claim 1, characterized in that: The movable ring 1 (9) and the movable ring 2 (10) are connected via the fixed block 2 (11).

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