Quick locking device of mechanical welding hand

Abstract

The utility model relates to the technical field of welding hand locking, and discloses a quick locking device of a mechanical welding hand, which comprises a mechanical connecting seat, a mounting hole is arranged in the mechanical connecting seat, a connecting sleeve is arranged in the mounting hole, a welding hand main body penetrates through the connecting sleeve, and a locking device is arranged in the welding hand main body. And the two ends of the welding hand main body extend out of the mechanical connecting seat. The welding hand main body is upwards inserted into the mounting hole, the positioning block is automatically pushed under the effect of a chamfer, the position of the connecting sleeve is preliminarily locked under the attraction between the first magnetic block and the second magnetic block, and then the positioning block is automatically inserted into the positioning groove under the elastic effect of the spring, so that the welding hand is convenient to use. And under the special structure of the positioning block, the connecting sleeve is locked, so that the welding hand main body is mounted and locked, and the whole operation is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of welding hand locking, in particular to a quick locking device for a mechanical welding hand. Background Art

[0002] A welding robot is an industrial robot that performs welding (including cutting and spraying). It is mainly composed of a freely movable robotic arm controlled by programming and a welding clamp at the end. It uses the flexibility of the robotic arm to achieve automatic welding operations on workpieces.

[0003] Chinese patent authorization announcement number CN217597142U discloses a quick locking device for a mechanical welding hand, including a connector, the bottom end of the connector is movably connected to a welding head body, the top of the welding head body is fixedly connected to an insert block, the top of the insert block penetrates the inner cavity of the connector, and both sides of the inner cavity of the connector are provided with a limit mechanism. The quick locking device of the mechanical welding hand has the advantages of convenient disassembly and assembly, simple operation, and can complete the disassembly and assembly operation without the aid of auxiliary tools, thereby achieving the effect of saving time and labor, improving the maintenance efficiency, and thus improving the practicality of the mechanical welding hand. The above-mentioned prior art solution has the following shortcomings: in this structure, the L-shaped plate is hooked on the T-shaped groove to achieve the docking effect of the welding head body, but in this structure, during the entire installation process, it is necessary to insert the insert block upward, and use the pull of the knob and the action of the knob to achieve the final installation locking effect, and the overall operation steps are not concise enough, so there is a certain room for improvement. Summary of the invention

[0004] The purpose of the utility model is to provide a quick locking device for a mechanical welding hand, so as to solve the problem that the quick locking device for a mechanical welding hand proposed in the above background technology has a general problem in terms of the convenience of locking operation.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quick locking device for a mechanical welding hand, comprising a mechanical connection seat, a mounting hole is opened inside the mechanical connection seat, and a connecting sleeve is installed inside the mounting hole, a welding hand body is penetrated inside the connecting sleeve, and both ends of the welding hand body extend to the outside of the mechanical connection seat, and an automatic locking mechanism is evenly connected between the outside of the connecting sleeve and the mechanical connection seat to achieve locking and fixing of the mechanical connection seat, and the automatic locking mechanism is evenly distributed in a cross shape inside the mechanical connection seat, and the automatic locking mechanism includes an opening A cavity is provided on one side of the interior of the mechanical connecting seat, and a spring is installed inside the cavity, a movable plate is installed at one end of the spring, a positioning block is installed on one side of the movable plate, a positioning groove is correspondingly provided on the outside of the connecting sleeve on one side of the positioning block, one side of the positioning block penetrates the welding hand body and extends to the inside of the positioning groove, a chamfer is provided on the outer edge of the top of the connecting sleeve, a sleeve plate is sleeved on the bottom end of the connecting sleeve, and limiting blocks are installed on both sides of the top of the sleeve plate, a limiting groove is correspondingly provided at the bottom end of the mechanical connecting seat above the limiting block, and the top of the limiting block extends to the inside of the limiting groove.

[0006] Preferably, the cross section of the positioning block is a right-angled trapezoid, the inclined surface of the positioning block faces the connecting sleeve, and the inclined surface of the positioning block is inclined downward from the inside to the outside.

[0007] Preferably, the cross-section of the mounting hole is an inverted T-shape, the inner diameter of the mounting hole is matched with the outer diameter of the connecting sleeve, and the welding hand body forms a rotating structure through the cooperation of the mounting hole with the connecting sleeve and the mechanical connecting seat.

[0008] Preferably, a second magnetic block is installed at the top of the limiting block, a first magnetic block is installed at the top of the limiting groove, and the first magnetic block and the second magnetic block attract each other.

[0009] Preferably, an annular groove is provided on the outer side of the top of the mechanical connection seat, a pull rope is installed on the side of the movable plate close to the spring, and one end of the pull rope extends to the inside of the annular groove, and a rotating traction mechanism is provided at the top of the mechanical connection seat to facilitate pulling the pull rope.

[0010] Preferably, the rotating traction mechanism includes a rotating ring installed on the top of the mechanical connecting seat, and a connecting groove is opened on the inner side of the rotating ring, a fixing ring is installed inside the connecting groove, and the bottom end of the fixing ring is welded to the top of the mechanical connecting seat, and connecting rods are evenly welded to the bottom end of the rotating ring, and the bottom ends of the connecting rods extend to the inside of the annular groove and are connected to one end of the pull rope.

[0011] Preferably, the cross-section of the fixed ring is an inverted L-shape, and the rotating ring forms a rotating structure through the cooperation with the fixed ring and the mechanical connecting seat through the connecting groove. The rotating ring is located directly above the annular groove, and the thickness of the rotating ring is greater than the thickness of the annular groove.

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

[0013] (1) The welding hand body is inserted upward into the interior of the mounting hole, and the chamfer is used to facilitate the self-pushing of the positioning block, and the attraction between the first magnetic block and the second magnetic block is used to achieve the preliminary locking of the position of the connecting sleeve. Then, under the elastic action of the spring, the positioning block is automatically inserted into the interior of the positioning groove, and the connecting sleeve is locked under the special structure of the positioning block, thereby achieving the installation locking of the welding hand body. The overall operation is simple and convenient, and the cooperation of multiple positioning blocks is used to achieve multi-directional locking around the connecting sleeve, so as to improve the stability of the connection between the welding hand body and the mechanical connecting seat;

[0014] (2) By rotating the rotating ring, the connecting rod pulls the pull rope, so that the movable plate moves outward, so that the positioning block can be separated from the positioning groove, so that the connecting sleeve and the mounting hole can be separated and disassembled. In addition, since the rotating ring is placed on the top of the mechanical connecting seat, it will not affect the welding between the mechanical connecting seat and the mechanical arm, and will not contact the mechanical arm. Therefore, it is not easy to accidentally touch the rotating ring during the operation of the entire mechanical welding hand, thereby ensuring the stability of the welding hand body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the connecting sleeve of the utility model;

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the rotating traction mechanism of the utility model;

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the positioning block of the utility model.

[0020] Explanation of the reference numerals in the figure: 1. Mechanical connecting seat; 2. Mounting hole; 3. Welding hand body; 4. Connecting sleeve; 5. Automatic locking mechanism; 501. Cavity; 502. Spring; 503. Positioning groove; 504. Movable plate; 505. Positioning block; 6. Chamfer; 7. Annular groove; 8. Pull rope; 9. Rotating traction mechanism; 901. Rotating ring; 902. Connecting groove; 903. Fixed ring; 904. Connecting rod; 10. Sleeve plate; 11. Limiting groove; 12. First magnetic block; 13. Second magnetic block; 14. Limiting block. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of 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.

[0022] See also Figure 1-Figure 4 , the utility model provides an embodiment: a quick locking device for a mechanical welding hand, comprising a mechanical connecting seat 1;

[0023] An annular groove 7 is provided on the outer side of the top of the mechanical connection seat 1, a pull rope 8 is installed on the side of the movable plate 504 close to the spring 502, and one end of the pull rope 8 extends to the inside of the annular groove 7, and a rotating traction mechanism 9 is provided on the top of the mechanical connection seat 1 to facilitate pulling the pull rope 8;

[0024] The rotating traction mechanism 9 includes a rotating ring 901 installed on the top of the mechanical connection seat 1, and a connecting groove 902 is opened on the inner side of the rotating ring 901, a fixing ring 903 is installed inside the connecting groove 902, and the bottom end of the fixing ring 903 is welded to the top of the mechanical connection seat 1, and the bottom end of the rotating ring 901 is evenly welded with a connecting rod 904, and the bottom end of the connecting rod 904 extends to the inside of the annular groove 7 and is connected to one end of the pull rope 8;

[0025] The cross section of the fixed ring 903 is an inverted L-shape. The rotating ring 901 forms a rotating structure through the cooperation of the connecting groove 902 with the fixed ring 903 and the mechanical connecting seat 1. The rotating ring 901 is located directly above the annular groove 7, and the thickness of the rotating ring 901 is greater than the thickness of the annular groove 7.

[0026] Specifically, Figure 1 , Figure 3 and Figure 4As shown, when in use, the rotating ring 901 is used to pull the pull rope 8 to produce a lateral movement, so that the pull rope 8 pulls the positioning block 505 to move outward, so as to separate the connecting sleeve 4 from the mounting hole 2, thereby disassembling the welding hand body 3. Since the rotating ring 901 is located at the top of the mechanical connecting seat 1, there is no direct contact between it and the mechanical arm, thereby avoiding the influence of the movement of the mechanical arm on the rotating ring 901, and then ensuring the stability of the welding hand body 3;

[0027] A mounting hole 2 is provided inside the mechanical connection seat 1;

[0028] The cross section of the mounting hole 2 is an inverted T-shape, the inner diameter of the mounting hole 2 is adapted to the outer diameter of the connecting sleeve 4, and the welding hand body 3 forms a rotating structure through the matching of the mounting hole 2 and the connecting sleeve 4 and the mechanical connecting seat 1;

[0029] Specifically, Figure 1 As shown, when in use, the mounting hole 2 and the sleeve plate 10 are used to limit the connection sleeve 4 so that the connection sleeve 4 is kept inside the mounting hole 2 to connect with the mechanical connection seat 1;

[0030] A connecting sleeve 4 is installed inside the mounting hole 2, a welding hand body 3 is penetrated inside the connecting sleeve 4, and both ends of the welding hand body 3 extend to the outside of the mechanical connection seat 1, and an automatic locking mechanism 5 is evenly connected between the outside of the connecting sleeve 4 and the mechanical connection seat 1 to achieve locking and fixing of the mechanical connection seat 1, and the automatic locking mechanism 5 is evenly distributed in a cross shape inside the mechanical connection seat 1, and the automatic locking mechanism 5 includes a cavity 501 opened on one side of the inside of the mechanical connection seat 1, and a spring 502 is installed inside the cavity 501, a movable plate 504 is installed at one end of the spring 502, and a positioning block 505 is installed on one side of the movable plate 504;

[0031] The cross section of the positioning block 505 is a right-angle trapezoid, the inclined surface of the positioning block 505 faces the connecting sleeve 4, and the inclined surface of the positioning block 505 is inclined downward from the inside to the outside;

[0032] Specifically, Figure 1 , Figure 2 and Figure 4 As shown, when in use, the positioning block 505 and the chamfer 6 cooperate to enable the connection sleeve 4 to push the positioning block 505 by itself during the upward movement, and then when the connection sleeve 4 is rotated and adjusted, the positioning block 505 can be automatically inserted into the corresponding positioning groove 503 to achieve the locking effect of the connection sleeve 4;

[0033] A positioning groove 503 is correspondingly provided on the outside of the connecting sleeve 4 on one side of the positioning block 505. One side of the positioning block 505 penetrates the welding hand body 3 and extends to the inside of the positioning groove 503. A chamfer 6 is provided on the outer edge of the top of the connecting sleeve 4. A sleeve plate 10 is sleeved on the bottom end of the connecting sleeve 4, and both sides of the top of the sleeve plate 10 are installed with limit blocks 14. A limit groove 11 is correspondingly provided on the bottom end of the mechanical connecting seat 1 above the limit block 14, and the top of the limit block 14 extends to the inside of the limit groove 11.

[0034] A second magnetic block 13 is installed at the top of the limiting block 14, and a first magnetic block 12 is installed at the top of the limiting groove 11, and the first magnetic block 12 and the second magnetic block 13 attract each other;

[0035] Specifically, Figure 1 , Figure 2 As shown, when in use, the first magnetic block 12 and the second magnetic block 13 are attracted to each other so as to improve the contact tightness between the sleeve plate 10 and the bottom end of the mechanical connection seat 1, so that the first magnetic block 12 generates an upward traction force on the sleeve plate 10 to achieve preliminary limiting of the welding hand body 3.

[0036] Working principle: When the utility model is used, firstly, the welding hand body 3 is inserted upward into the interior of the mounting hole 2, so that the connecting sleeve 4 is fitted with the inner wall of the mounting hole 2, and the chamfer 6 contacts the positioning block 505 during the upward movement, and the chamfer 6 uses the inclined surface of the positioning block 505 to push the positioning block 505 into the interior of the cavity 501, so that the connecting sleeve 4 can completely enter the interior of the mounting hole 2;

[0037] Secondly, the welding hand body 3 is slightly rotated to make the position of the limit block 14 correspond to the position of the limit groove 11, and the attraction between the first magnetic block 12 and the second magnetic block 13 is used to make the second magnetic block 13 completely inserted into the interior of the limit groove 11, so as to achieve the preliminary locking of the welding hand body 3, and at the same time, the position of the positioning groove 503 and the positioning block 505 are made to correspond, and the elastic effect of the spring 502 is used to push the movable plate 504, so that the movable plate 504 pushes the positioning block 505 to insert into the interior of the positioning groove 503, so that the positioning block 505 locks the connecting sleeve 4, so that the connecting sleeve 4 is fixed in the mounting hole 2, that is, the rapid docking and locking effect between the welding hand body 3 and the mechanical connecting seat 1 is achieved;

[0038] Finally, when the welding hand body 3 needs to be disassembled, the rotating ring 901 is rotated to rotate along the outside of the fixed ring 903, so that the connecting rod 904 moves inside the annular groove 7, and the bottom end of the connecting rod 904 pulls the pull rope 8 to move. Due to the inconvenient length of the pull rope 8, the other end of the pull rope 8 pulls the connecting rod 904 to move outward, compressing the connecting groove 902, and then realizing the distribution of 905 and the fixed ring 903, and pulling the welding hand body 3 downward with force to separate the first magnetic block 12 from the second magnetic block 13, thereby separating the connecting sleeve 4 from the mounting hole 2, and realizing the disassembly operation of the welding hand body 3.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A quick locking device for a mechanical welding hand, comprising a mechanical connection seat (1), characterized in that: The mechanical connection seat (1) is provided with a mounting hole (2) inside, and a connecting sleeve (4) is installed inside the mounting hole (2); a welding hand body (3) is passed through the inside of the connecting sleeve (4), and both ends of the welding hand body (3) extend to the outside of the mechanical connection seat (1); an automatic locking mechanism (5) is evenly connected between the outside of the connecting sleeve (4) and the mechanical connection seat (1) to achieve locking and fixing of the mechanical connection seat (1); the automatic locking mechanism (5) is evenly distributed in a cross shape inside the mechanical connection seat (1); the automatic locking mechanism (5) comprises a cavity (501) provided on one side inside the mechanical connection seat (1); a spring (502) is installed inside the cavity (501); the spring (502) is connected to the mechanical connection seat (1) and the mechanical connection seat (1) is locked. A movable plate (504) is installed at one end of the movable plate (504), a positioning block (505) is installed on one side of the movable plate (504), a positioning groove (503) is correspondingly provided on the outside of the connecting sleeve (4) on one side of the positioning block (505), one side of the positioning block (505) penetrates the welding hand body (3) and extends to the inside of the positioning groove (503), a chamfer (6) is provided on the outer edge of the top of the connecting sleeve (4), a sleeve plate (10) is sleeved on the bottom end of the connecting sleeve (4), and limiting blocks (14) are installed on both sides of the top of the sleeve plate (10), a limiting groove (11) is correspondingly provided on the bottom end of the mechanical connecting seat (1) above the limiting block (14), and the top of the limiting block (14) extends to the inside of the limiting groove (11).

2. A quick locking device for a mechanical welding hand according to claim 1, characterized in that: The cross section of the positioning block (505) is in the form of a right-angled trapezoid, the inclined surface of the positioning block (505) faces the connecting sleeve (4), and the inclined surface of the positioning block (505) slopes downward from the inside to the outside.

3. The quick locking device for a mechanical welding hand according to claim 1, characterized in that: The cross section of the mounting hole (2) is an inverted T-shape, the inner diameter of the mounting hole (2) is matched with the outer diameter of the connecting sleeve (4), and the welding hand body (3) forms a rotating structure through the cooperation of the mounting hole (2) and the connecting sleeve (4) and the mechanical connecting seat (1).

4. The quick locking device for a mechanical welding hand according to claim 1, characterized in that: A second magnetic block (13) is installed at the top of the limiting block (14), a first magnetic block (12) is installed at the top of the limiting groove (11), and the first magnetic block (12) and the second magnetic block (13) attract each other.

5. The quick locking device for a mechanical welding hand according to claim 1, characterized in that: An annular groove (7) is provided on the outer side of the top of the mechanical connection seat (1); a pull rope (8) is installed on the side of the movable plate (504) close to the spring (502), and one end of the pull rope (8) extends to the inside of the annular groove (7); and a rotating traction mechanism (9) is provided at the top of the mechanical connection seat (1) to facilitate pulling the pull rope (8).

6. A quick locking device for a mechanical welding hand according to claim 5, characterized in that: The rotating traction mechanism (9) comprises a rotating ring (901) mounted on the top of the mechanical connection seat (1), and a connecting groove (902) is provided on the inner side of the rotating ring (901), a fixing ring (903) is installed inside the connecting groove (902), and the bottom end of the fixing ring (903) is welded to the top of the mechanical connection seat (1), and connecting rods (904) are uniformly welded to the bottom end of the rotating ring (901), and the bottom ends of the connecting rods (904) extend to the inside of the annular groove (7) and are connected to one end of the pull rope (8).

7. A quick locking device for a mechanical welding hand according to claim 6, characterized in that: The cross section of the fixed ring (903) is an inverted L-shape. The rotating ring (901) forms a rotating structure through the cooperation of the connecting groove (902) with the fixed ring (903) and the mechanical connecting seat (1). The rotating ring (901) is located directly above the annular groove (7), and the thickness of the rotating ring (901) is greater than the thickness of the annular groove (7).

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