Safety protection mechanism and welding robot

Abstract

The utility model discloses a safety protection mechanism and a welding robot, and relates to the field of welding robots. The safety protection mechanism and the welding robot comprise a welding protection cover, and the welding protection cover comprises a conical cover shell and a fixing base fixedly arranged at the end of the conical cover shell; locking mechanisms are arranged on the two sides of the inner wall of the fixing base, and each locking mechanism comprises a pressing block, a plug pin shaft, a pinch bar and a locking spring. According to the safety protection mechanism and the welding robot, the two sets of pressing blocks are pressed inwards, so that the plug pin shaft shrinks towards the interior of the fixing base, the fixing base is installed right opposite to the welding head, a limiting sliding block is inserted into an anti-disengaging installation groove, rotation is conducted, the pressing blocks are loosened, and the plug pin shaft enters a fixing hole to be fixed; the conical housing is selected to be installed outwards or inwards according to requirements, the front end of the welding head is less shielded due to inward installation, the welding head can enter a narrow space more easily for welding operation, the welding slag gathering protection effect is better due to outward installation, and the welding slag can be effectively prevented from splashing.

Description

Technical Field

[0001] The utility model relates to the technical field of welding robots, in particular to a safety protection mechanism and a welding robot. Background Art

[0002] A welding robot is a type of intelligently controlled welding equipment, which mainly includes a robotic arm that can rotate and move in multiple dimensions and a welding head installed on the end of the robotic arm. When in use, the welding rod is installed on the welding head, and the robotic arm controls the welding head to move to the specified position, and welding is performed using the welding rod, which has high precision and low risk.

[0003] When a welding robot is in use, it can usually operate continuously. During this process, the temperature at the welding head is relatively high, and the welding slag after the welding rod melts will splash. The high temperature can easily cause high-temperature burning to the surface of the welding robot, causing the anti-rust coating on the surface of the robot arm and the welding head to fall off. For this reason, a protective cover is usually required for simple isolation to minimize the first contact between the welding slag and the welding robot and reduce damage. Currently, such protective covers are basically fixed conical covers with the cover heads facing outward. This cannot be used for internal welding of some special components. The protective cover will cause obstruction, making it impossible for the welding head to enter the interior for welding. For this reason, a safety protection mechanism and a welding robot are specially provided to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a safety protection mechanism and a welding robot, which solves the problem that the current protective covers of this type are basically fixed conical covers with the cover heads facing outwards, which cannot be used when welding inside some special components, as the protective covers will cause obstructions, making it impossible for the welding head to enter the interior for welding.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a safety protection mechanism and a welding robot, including a welding protective cover, the welding protective cover includes;

[0006] A conical cover shell and a fixing seat fixedly arranged at the end of the conical cover shell;

[0007] A locking mechanism is arranged on both sides of the inner wall of the fixing seat, and the locking mechanism comprises:

[0008] A pressing block, which is movably plugged into the outer side wall of the fixing seat;

[0009] A latch shaft, which is movably plugged into the inner wall of the fixing seat;

[0010] A pry bar is rotatably arranged inside the fixed seat, and two ends of the pry bar are movably connected to the pressing block and the latch shaft respectively;

[0011] The locking spring is arranged inside the fixing seat, and the locking spring abuts against the inner side of the pressing block.

[0012] Preferably, movable grooves are provided at both ends of the pry bar, a sliding connecting rod is fixedly connected to the inner middle part of the pressure block, the interior of the sliding connecting rod and the end of the latch shaft are rotatably connected to sliding shafts, and the two groups of sliding shafts are respectively slidably connected to the inside of the two groups of movable grooves.

[0013] Preferably, both sides of the sliding connecting rod are fixedly connected with a limit shaft, the limit shaft is movably inserted in the inner side wall of the fixing seat, and the locking spring is movably sleeved on the outer surface of the limit shaft.

[0014] Preferably, two groups of symmetrical limiting sliding blocks are fixedly provided on the inner wall of the fixing seat.

[0015] Preferably, the welding robot comprises a mechanical arm and a welding head installed at the end of the mechanical arm, the welding head is used for welding, and the welding protective cover is installed on the outer wall of the welding head.

[0016] Preferably, a fixing hole is provided on the outer surface of the welding head, and the latch shaft is movably inserted into the fixing hole.

[0017] Preferably, an anti-dropout installation groove is provided on the outer surface of the welding head, and the limiting slider is slidably connected to the inside of the anti-dropout installation groove.

[0018] The utility model discloses a safety protection mechanism and a welding robot, which have the following beneficial effects: by pressing two groups of pressure blocks inwardly, the pressure blocks drive the pry bar to rotate through the sliding shaft, and at this time the other end of the pry bar drives the latch shaft to contract toward the inside of the fixing seat, and at this time the locking spring is compressed, and then the fixing seat is installed directly opposite to the welding head, so that the limit slider is inserted into the inside of the anti-detachment installation groove, and then rotated, so that the limit slider enters the bottom of the anti-detachment installation groove, and at this time the pressure blocks are released, and under the action of the locking spring the latch shaft enters the inside of the fixing hole for fixing, so that the conical cover shell can be installed quickly and conveniently, and at the same time the conical cover shell can be installed outwardly or inwardly according to the use requirements, the inward installation makes the front end of the welding head less blocked, and it is easier to enter a narrow space for welding operations, and the outward installation has a better protection effect on the gathering of welding slag, and can effectively prevent welding slag from splashing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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 only 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.

[0020] Figure 1 This is a schematic diagram of the overall structure of the utility model in use state;

[0021] Figure 2 This is a schematic diagram of two installation methods of the welding protective cover of the utility model;

[0022] Figure 3 This is a cross-sectional view of the end structure of the welding protective cover of the utility model;

[0023] Figure 4 This is a cross-sectional view of the internal structure of the fixing seat of the utility model;

[0024] Figure 5 This is a schematic diagram of the outer surface structure of the welding head of the utility model;

[0025] Figure 6 This is a schematic diagram of the locking mechanism structure of the utility model.

[0026] In the figure: 1. welding protective cover; 11. conical cover shell; 12. fixing seat; 13. limit slider; 14. locking mechanism; 141. pressure block; 142. latch shaft; 143. pry bar; 144. movable groove; 145. limit shaft; 146. locking spring; 147. sliding link; 148. sliding shaft; 2. mechanical arm; 21. welding head; 22. fixing hole; 23. anti-drop installation groove. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments 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.

[0028] The embodiments of the present application provide a safety protection mechanism and a welding robot, thereby solving the problem that the existing protective covers of this type are basically fixed conical covers with the cover heads facing outwards, which cannot be used when welding inside some special components because the protective covers will cause obstructions, making it impossible for the welding head to enter the interior for welding.

[0029] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0030] The utility model discloses a safety protection mechanism and a welding robot.

[0031] According to the attached Figure 1-6As shown, it includes a welding shield 1, which includes a conical cover shell 11 and a fixed seat 12 fixedly arranged at the end of the conical cover shell 11; locking mechanisms 14 are arranged on both sides of the inner wall of the fixed seat 12, and the locking mechanism 14 includes a pressure block 141, a latch shaft 142, a pry bar 143 and a locking spring 146, the pressure block 141 is movably inserted on the outer wall of the fixed seat 12; the latch shaft 142 is movably inserted on the inner wall of the fixed seat 12; the pry bar 143 is rotatably arranged inside the fixed seat 12, and the two ends of the pry bar 143 are movably connected with the pressure block 141 and the latch shaft 142 respectively; the locking spring 146 is arranged inside the fixed seat 12, and the locking spring 146 is against the inner side of the pressure block 141.

[0032] Both ends of the pry rod 143 are provided with movable grooves 144, and a sliding link 147 is fixedly connected to the inner middle part of the pressing block 141. The interior of the sliding link 147 and the end of the latch shaft 142 are rotatably connected with a sliding shaft 148, and the two groups of sliding shafts 148 are respectively slidably connected to the inside of the two groups of movable grooves 144.

[0033] The two groups of pressure blocks 141 are pressed inwardly so that the pressure blocks 141 drive the pry bar 143 to rotate through the sliding shaft 148. At this time, the other end of the pry bar 143 drives the latch shaft 142 to retract into the interior of the fixing seat 12. At this time, the locking spring 146 is compressed, and the pressure blocks 141 are released. Under the action of the locking spring 146, the latch shaft 142 enters the fixing hole 22 for fixing, so as to facilitate the quick installation of the conical cover shell 11.

[0034] Both sides of the sliding link 147 are fixedly connected to the limit shaft 145, the limit shaft 145 is movably inserted into the inner wall of the fixing seat 12, and the locking spring 146 is movably sleeved on the outer surface of the limit shaft 145 to prevent the locking spring 146 from being deflected during use.

[0035] Two sets of symmetrical limiting sliding blocks 13 are fixedly arranged on the inner wall of the fixing seat 12 .

[0036] The welding robot includes a robot arm 2 and a welding head 21 installed at the end of the robot arm 2 . The welding head 21 is used for welding. The welding shield 1 is installed on the outer wall of the welding head 21 . Welding is performed by installing a welding rod on the welding head 21 .

[0037] A fixing hole 22 is provided on the outer surface of the welding head 21, and the pin shaft 142 is movably inserted into the inside of the fixing hole 22. An anti-slip installation groove 23 is provided on the outer surface of the welding head 21, and the limit slider 13 is slidably connected to the inside of the anti-slip installation groove 23. The fixing seat 12 is installed opposite to the welding head 21, so that the limit slider 13 is inserted into the inside of the anti-slip installation groove 23, and then rotated so that the limit slider 13 enters the bottom of the anti-slip installation groove 23. At this time, the pressure block 141 is released, and the pin shaft 142 enters the fixing hole 22 for fixing under the action of the locking spring 146, so that the conical cover shell 11 can be installed quickly and conveniently. The conical cover shell 11 can be installed outward or inward according to the use requirements. The inward installation makes the front end of the welding head 21 less blocked, making it easier to enter a narrow space for welding operations. The outward installation has a better protection effect on the gathering of welding slag and can effectively prevent welding slag from splashing.

[0038] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A safety protection mechanism, comprising a welding protection cover (1), characterized in that: The welding protective cover (1) comprises: A conical cover shell (11) and a fixing seat (12) fixedly arranged at the end of the conical cover shell (11); A locking mechanism (14) is arranged on both sides of the inner wall of the fixing seat (12), and the locking mechanism (14) comprises: A pressing block (141) movably plugged into an outer side wall of the fixing seat (12); A latch shaft (142) movably plugged into the inner wall of the fixing seat (12); A pry bar (143) is rotatably arranged inside the fixed seat (12), and two ends of the pry bar (143) are movably connected to the pressing block (141) and the latch shaft (142) respectively; A locking spring (146) is arranged inside the fixing seat (12), and the locking spring (146) abuts against the inner side of the pressing block (141).

2. A safety protection mechanism according to claim 1, characterized in that: Both ends of the pry bar (143) are provided with movable grooves (144), the inner middle portion of the pressure block (141) is fixedly connected with a sliding link (147), the interior of the sliding link (147) and the end of the latch shaft (142) are rotatably connected with a sliding shaft (148), and two groups of the sliding shafts (148) are respectively slidably connected to the inside of the two groups of movable grooves (144).

3. A safety protection mechanism according to claim 2, characterized in that: Both sides of the sliding connecting rod (147) are fixedly connected to a limit shaft (145), the limit shaft (145) is movably inserted into the inner wall of the fixing seat (12), and the locking spring (146) is movably sleeved on the outer surface of the limit shaft (145).

4. A safety protection mechanism according to claim 1, characterized in that: Two groups of symmetrical limiting sliding blocks (13) are fixedly arranged on the inner wall of the fixing seat (12).

5. A welding robot, comprising the safety protection mechanism according to any one of claims 1 to 4, characterized in that: The welding robot comprises a mechanical arm (2) and a welding head (21) mounted at the end of the mechanical arm (2); the welding head (21) is used for welding, and the welding protective cover (1) is mounted on the outer wall of the welding head (21).

6. A welding robot according to claim 5, characterized in that: The outer surface of the welding head (21) is provided with a fixing hole (22), and the latch shaft (142) is movably inserted into the fixing hole (22).

7. A welding robot according to claim 5, characterized in that: An anti-dropout installation groove (23) is provided on the outer surface of the welding head (21), and the limiting slider (13) is slidably connected inside the anti-dropout installation groove (23).

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