Tool anti-falling mechanism

Abstract

The utility model relates to a tool anti-falling mechanism which comprises a fixed machine frame and an anti-falling assembly, one end of the anti-falling assembly is movably arranged on the fixed machine frame, the other end of the anti-falling assembly is connected with a tool, and the anti-falling assembly comprises a lock plate, a swing arm, an air cylinder, a first connecting support and a second connecting support, the lock plate is fixed on the fixed rack, one end of the swing arm is rotatably connected with the first connecting support, the other end of the swing arm is movably clamped with the lock plate, one end of the air cylinder is rotatably connected with the second connecting support, and the other end of the air cylinder is in driving connection with the middle section of the swing arm. Compared with the prior art, the anti-falling assembly locking tool which is simple in structure and convenient and rapid in action has the advantages of being reliable in locking, convenient to maintain in the later period, low in cost and the like.

Description

Technical Field

[0001] The utility model relates to the field of locking devices, in particular to a tool anti-falling mechanism. Background Technique

[0002] At present, the integration of the automotive body-in-white welding production line is getting higher and higher. Usually, multiple models of body-in-white need to be produced on one production line. Due to the large differences in the shapes of these different models of body-in-white, it is necessary to use handling robots to carry and switch the moving tooling to achieve the matching of the moving tooling and the body-in-white. During the welding process, the moving tooling needs to be positioned and locked.

[0003] At present, most of the locking mechanisms for moving workpieces contain a large number of parts, and the locking structure is cumbersome, which increases the cost of the clamping and anti-falling structure. Moreover, the complex structure leads to an increase in the failure rate of the mechanism, making the later maintenance of the mechanism cumbersome and difficult, and reducing the reliability of the device locking.

[0004] Therefore, it is necessary to provide a tool anti-falling mechanism with a simple overall structure, convenient for later maintenance, low cost, and high locking stability for the tooling. Content of the Utility Model

[0005] The purpose of the utility model is to overcome the defects existing in the above-mentioned prior art.

[0006] The purpose of the utility model can be realized by the following technical solutions:

[0007] A tool anti-falling mechanism includes a fixed frame and an anti-falling component. One end of the anti-falling component is movably arranged on the fixed frame, and the other end is connected to the tooling. The anti-falling component includes a lock plate, a swing arm, a cylinder, and a first connecting support and a second connecting support arranged side by side on the tooling;

[0008] The lock plate is fixed on the fixed frame. One end of the swing arm is rotatably connected to the first connecting support, and the other end is movably clamped with the lock plate. One end of the cylinder is rotatably connected to the second connecting support, and the other end is drivingly connected to the middle section of the swing arm.

[0009] Preferably, the swing arm includes a first connecting plate and a second connecting plate arranged in parallel. A roller and a first pin are arranged between the first connecting plate and the second connecting plate;

[0010] The first pin sequentially passes through the first connecting plate, the roller, and the second connecting plate. The roller is rotatably connected to the first pin. The lock plate is provided with a lock port matching the shape of the roller, and the roller is movably connected to the lock port.

[0011] Preferably, the inner side of the lock port includes a tangent segment, an arc segment, and a chamfer segment connected in sequence;

[0012] The tangent segment is tangent to the arc segment and connects the upper end of the arc segment. The chamfered segment connects the lower end of the arc segment, and the upper end face of the chamfered segment is higher than the lower end face of the arc segment.

[0013] Preferably, a connecting head is provided at the front end of the telescopic rod of the cylinder. One end of the connecting head is threadedly connected to the telescopic rod, and the other end is provided with a through hole. A second pin is further provided between the first connecting plate and the second connecting plate. The second pin passes through the through hole of the connecting head, and the connecting head is rotatably connected to the swing arm. The second pin is located at the middle position of the swing arm.

[0014] Preferably, the locking plate includes a welding plate and a clamping plate. The welding plate is welded to the fixed frame, and the clamping plate is detachably fixed to the welding plate.

[0015] Preferably, the clamping plate is bolted to the welding plate.

[0016] Preferably, the clamping plate is of an L-shaped structure. One end of the clamping plate is connected to the welding plate, and the locking port is located at the other end of the clamping plate.

[0017] Preferably, the first connecting support includes a first connecting member and a first support which are connected to each other;

[0018] The first connecting member is fixed to the tooling, the first support is located at the upper end of the first connecting member, a third pin is provided on the first support, and the swing arm is rotatably fixed to the first support through the third pin.

[0019] Preferably, the second connecting support includes a second connecting member and a second support which are connected to each other;

[0020] The second connecting member is fixed to the tooling, the second support is located at the upper end of the second connecting member, and the cylinder is rotatably fixed to the second support.

[0021] Preferably, a connecting ear is provided at the end of the cylinder. A U-shaped support groove and a fourth pin are provided on the second support. The connecting ear is located in the U-shaped support groove, and the connecting ear is rotatably connected to the second support through the fourth pin.

[0022] Compared with the prior art, the utility model has the following advantages:

[0023] (1) In this solution, the lower ends of the first connecting support and the second connecting support are fixed to the tooling, and the two connecting supports are arranged side by side. When the tooling is processed, the tooling is locked. When the cylinder acts, the telescopic rod drives the swing arm to rotate around the axis of the first connecting support until the other end of the swing arm is clamped with the locking plate, completing the locking of the workpiece; after the tooling processing is completed, the telescopic rod of the cylinder drives the swing arm to rotate, disengaging from the locking plate, canceling the locking, and the tooling can be moved.

[0024] It is connected to the tooling through the first connecting support and the second connecting support arranged side by side, and the swing arm arranged on the first connecting support is driven to rotate by the cylinder arranged on the second connecting support, so that the other end of the swing arm is movably clamped with the lock plate on the fixed frame, and then the tooling is fixed on the fixed frame to realize the locking of the tooling. The structure of this anti-falling mechanism is simple, and connection can be realized by cylinder drive, with simple operation. The rotating swing arm is used for clamping, and with the cooperation of double connecting supports, the tooling has high stability and reliability after being locked, is convenient for later maintenance and repair, and reduces the cost of the anti-falling mechanism.

[0025] (2) In this solution, a rotatable roller is arranged at one end of the swing arm, and a lock port matching the shape of the roller is arranged on the lock plate. Inside the lock port, a tangent segment, an arc segment and a chamfer segment are connected in sequence; the tangent segment is tangent to the arc segment and connects the upper end of the arc segment, the chamfer segment connects the lower end of the arc segment, and the upper end face of the chamfer segment is higher than the lower end face of the arc segment; this limits the upper end of the opening of the lock port, and the lower chamfer facilitates the roller to enter the lock port, which is convenient for the roller to slide in and at the same time avoids the risk of the roller sliding out due to misoperation. Description of the Drawings

[0026] Figure 1 is a schematic structural diagram of the anti-falling mechanism provided by the present invention;

[0027] Figure 2 is a schematic structural diagram of the anti-falling component provided by the present invention;

[0028] Figure 3 is a schematic structural diagram of the anti-falling mechanism being locked provided by the present invention;

[0029] Figure 4 is a schematic structural diagram of the anti-falling mechanism being loosened provided by the present invention;

[0030] In the figure: 1, fixed frame; 2, anti-falling component; 3, tooling; 21, lock plate; 22, swing arm; 23, cylinder; 24, first connecting support; 25, second connecting support; 26, roller; 27, first pin; 28, second pin; 211, lock port; 212, tangent segment; 213, arc segment; 214, chamfer segment; 215, welding plate; 216, clamping plate; 221, first connecting plate; 222, second connecting plate; 231, connecting head; 232, connecting ear; 241, first connecting piece; 242, first support; 243, third pin; 251, second connecting piece; 252, second support; 253, fourth pin Detailed Embodiments

[0031] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. Components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0033] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0034] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is customarily placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0035] It should be noted that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality" means two or more unless otherwise specifically defined.

[0036] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0037] Embodiment 1

[0038] As Figure 1As shown in the figure, this embodiment provides a tool anti-falling mechanism, which includes a fixed frame 1 and an anti-falling component 2. One end of the anti-falling component 2 is movably arranged on the fixed frame 1, and the other end is connected to the tool 3. The anti-falling component 2 includes a lock plate 21, a swing arm 22, a cylinder 23, and a first connection support 24 and a second connection support 25 arranged side by side on the tool 3.

[0039] The lock plate 21 is fixed on the fixed frame 1. One end of the swing arm 22 is rotatably connected to the first connection support 24, and the other end is movably clamped with the lock plate 21. One end of the cylinder 23 is rotatably connected to the second connection support 25, and the other end is drivingly connected to the middle section of the swing arm 22.

[0040] Working principle: Fix the lower ends of the first connection support 24 and the second connection support 25 on the tool 3, and arrange the two connection supports side by side. When machining the tool, lock the tool. The cylinder 23 acts to drive the telescopic rod to drive the swing arm 22 to rotate around the axis of the first connection support 24 until the other end of the swing arm 22 is clamped with the lock plate 21, completing the locking of the workpiece. After the machining of the tool 3 is completed, the telescopic rod of the cylinder 23 drives the swing arm 22 to rotate, disengaging from the lock plate 21, canceling the locking, and the tool can be moved.

[0041] As Figure 3 and Figure 4 shown, the first connection support 24 and the second connection support 25 arranged side by side are connected to the tool 3, and the cylinder 23 arranged on the second connection support 25 drives the swing arm 22 arranged on the first connection support 24 to rotate, so that the other end of the swing arm 22 is movably clamped with the lock plate 21 on the fixed frame 1, thereby fixing the tool 3 on the fixed frame 1 and realizing the locking of the tool 3. The structure of this anti-falling mechanism is simple. Connection can be achieved by cylinder drive, and the operation is simple. The rotating swing arm 22 is used for clamping, and with the double connection supports, the stability of the tool after locking is high and reliable, and later maintenance is convenient, reducing the cost of the anti-falling mechanism.

[0042] Preferred embodiment, as Figure 2 shown, the swing arm 22 includes a first connecting plate 221 and a second connecting plate 222 arranged in parallel. A roller 26 and a first pin 27 are arranged between the first connecting plate 221 and the second connecting plate 222.

[0043] The first pin 27 sequentially passes through the first connecting plate 221, the roller 26 and the second connecting plate 222. The roller 26 is rotatably connected to the first pin 27. The lock plate 21 is provided with a lock port 211 matching the shape of the roller 26, and the roller 26 is movably connected to the lock port 211.

[0044] Specifically, the inner side of the locking port 211 includes a tangent segment 212, an arc segment 213, and a chamfer segment 214 that are connected in sequence; the tangent segment 212 is tangent to the arc segment 213 and connects to the upper end of the arc segment 213, the chamfer segment 214 connects to the lower end of the arc segment 213, and the upper end surface of the chamfer segment 214 is higher than the lower end surface of the arc segment 213.

[0045] A rotatable roller is provided at one end of the swing arm, and a locking port that matches the shape of the roller is provided on the locking plate. The inner side of the locking port is provided with a tangent segment, an arc segment, and a chamfer segment that are connected in sequence; the tangent segment is tangent to the arc segment and connects to the upper end of the arc segment, the chamfer segment connects to the lower end of the arc segment, and the upper end surface of the chamfer segment is higher than the lower end surface of the arc segment; the upper end of the opening of the locking port is limited, and the lower end is chamfered to facilitate the roller to enter the locking port, facilitating the roller to slide in while avoiding the danger of the roller sliding out due to misoperation.

[0046] A connecting head 231 is provided at the front end of the telescopic rod of the air cylinder 23. One end of the connecting head 231 is threadedly connected to the telescopic rod, and the other end is provided with a through hole. A second pin 28 is also provided between the first connecting plate 221 and the second connecting plate 222. The second pin 28 passes through the through hole of the connecting head 231, and the connecting head 231 is rotatably connected to the swing arm 22. The second pin 28 is located at the middle position of the swing arm 22.

[0047] The locking plate 21 includes a welding plate 215 and a clamping plate 216. The welding plate 215 is welded to the fixed frame 1, and the clamping plate 216 is detachably fixed to the welding plate 215. The clamping plate 216 is bolted to the welding plate 215. The clamping plate 216 is an L-shaped structure. One end of the clamping plate 216 is connected to the welding plate 215, and the locking port 211 is located at the other end of the clamping plate 216. Here, there is no specific requirement for the shape of the locking plate 21, and it can also be a T-shaped structure, mainly to facilitate the setting of the locking port and bolt fixation to the welding plate 215.

[0048] Specifically, the first connecting support 24 includes a first connecting member 241 and a first support 242 that are connected to each other;

[0049] The first connecting member 241 is fixed to the tooling 3, the first support 242 is located above the first connecting member 241, and a third pin 243 is provided on the first support 242. The swing arm 22 is rotatably fixed to the first support 242 through the third pin 243.

[0050] Among them, the second connecting support 25 includes a second connecting member 251 and a second support 252 which are connected to each other; the second connecting member 251 is fixed on the tooling 3, the second support 252 is located at the upper end of the second connecting member 251, and the air cylinder 23 is rotatably fixed on the second support 252. A connecting ear 232 is provided at the end of the air cylinder 23, a U-shaped support groove and a fourth shaft pin 253 are provided on the second support 252, the connecting ear 232 is located in the U-shaped support groove, and the connecting ear 232 is rotatably connected to the second support 252 through the fourth shaft pin 253.

[0051] The welding plate is welded to the fixed frame, the locking plate is connected to the welding plate with screws, the first connecting member and the second connecting member are fixed to the tooling, and the first support and the second support are installed at the other end. The telescopic air cylinder is installed on the air cylinder support with the air cylinder connecting ear and the shaft pin, so that the telescopic air cylinder can move around the shaft. The piston rod of the air cylinder is connected to the middle of the swing arm with the air cylinder joint, realizing the function of driving the swing arm to move by the telescopic movement of the air cylinder. One end of the swing arm is installed with a roller with a shaft pin, and the other end is installed on the support with a shaft pin. Using a simple link mechanism, the movement of the air cylinder piston drives the swing arm to move, so that the roller slides in and out of the locking opening of the locking plate.

[0052] It can be applied to the locking after most workpieces are in place, can prevent the connecting parts from falling off due to loosening, ensure that the tooling components will not be displaced during the operation process, and make the production and manufacturing process more stable and safer. Although the locking mechanism itself may require a certain cost, its brought stability, safety and reliability can reduce the costs of maintenance and replacement, and has better cost-effectiveness in the long run.

[0053] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations according to the concept of the present invention without creative work. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art shall be within the protection scope determined by the claims.

Claims

1. A tool anti-fall mechanism, comprising a fixed frame (1) and an anti-fall component (2), wherein one end of the anti-fall component (2) is movably arranged on the fixed frame (1), and the other end is connected to the tool (3), characterized in that: The anti-falling assembly (2) comprises a locking plate (21), a swing arm (22), a cylinder (23), and a first connecting support (24) and a second connecting support (25) arranged side by side on the tooling (3); The locking plate (21) is fixed on the fixed frame (1); one end of the swing arm (22) is rotatably connected to the first connecting support (24), and the other end is movably connected to the locking plate (21); one end of the cylinder (23) is rotatably connected to the second connecting support (25), and the other end is drivingly connected to the middle section of the swing arm (22).

2. A tooling anti-falling mechanism according to claim 1, characterized in that: The swing arm (22) comprises a first connecting plate (221) and a second connecting plate (222) which are arranged in parallel, and a roller (26) and a first shaft pin (27) are arranged between the first connecting plate (221) and the second connecting plate (222); The first axle pin (27) passes through the first connecting plate (221), the roller (26) and the second connecting plate (222) in sequence; the roller (26) is rotatably connected to the first axle pin (27); a locking opening (211) matching the shape of the roller (26) is provided on the locking plate (21); and the roller (26) is movably connected to the locking opening (211).

3. A tooling anti-falling mechanism according to claim 2, characterized in that: The inner side of the locking opening (211) comprises a tangent segment (212), an arc segment (213) and a chamfered segment (214) which are connected in sequence; The tangent segment (212) is tangent to the arc segment (213) and is connected to the upper end of the arc segment (213); the chamfered segment (214) is connected to the lower end of the arc segment (213); and the upper end surface of the chamfered segment (214) is higher than the lower end surface of the arc segment (213).

4. The tooling anti-falling mechanism according to claim 2, characterized in that: A connecting head (231) is provided at the front end of the telescopic rod of the cylinder (23); one end of the connecting head (231) is threadedly connected to the telescopic rod, and the other end is provided with a through hole; a second shaft pin (28) is also provided between the first connecting plate (221) and the second connecting plate (222); the second shaft pin (28) passes through the through hole of the connecting head (231); the connecting head (231) can be rotatably connected to the swing arm (22); and the second shaft pin (28) is located in the middle of the swing arm (22).

5. The tooling anti-falling mechanism according to claim 2, characterized in that: The locking plate (21) comprises a welding plate (215) and a clamping plate (216); the welding plate (215) is welded to the fixed frame (1); and the clamping plate (216) is detachably fixed to the welding plate (215).

6. A tooling anti-falling mechanism according to claim 5, characterized in that: The clamping plate (216) is bolted to the welding plate (215).

7. The tooling anti-falling mechanism according to claim 5, characterized in that: The clamping plate (216) is an L-shaped structure, one end of the clamping plate (216) is connected to the welding plate (215), and the locking opening (211) is located at the other end of the clamping plate (216).

8. The tooling anti-falling mechanism according to claim 1, characterized in that: The first connecting support (24) comprises a first connecting member (241) and a first support (242) connected to each other; The first connecting member (241) is fixed on the tooling (3); the first support (242) is located at the upper end of the first connecting member (241); a third shaft pin (243) is provided on the first support (242); and the swing arm (22) is rotatably fixed on the first support (242) via the third shaft pin (243).

9. The tooling anti-falling mechanism according to claim 1, characterized in that: The second connecting support (25) comprises a second connecting member (251) and a second support (252) which are connected to each other; The second connecting member (251) is fixed on the tooling (3), the second support (252) is located at the upper end of the second connecting member (251), and the cylinder (23) is rotatably fixed on the second support (252).

10. The tooling anti-falling mechanism according to claim 9, characterized in that: A connecting ear (232) is provided at the end of the cylinder (23), a U-shaped supporting groove and a fourth shaft pin (253) are provided on the second support (252), the connecting ear (232) is located in the U-shaped supporting groove, and the connecting ear (232) is rotatably connected to the second support (252) via the fourth shaft pin (253).

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