Heavy fixture

Abstract

The utility model discloses a heavy fixture which comprises a mother board and a fixture daughter board, a positioning pin is arranged on the top of the mother board, the fixture daughter board is placed on the outer wall of the top of the mother board, and the fixture daughter board, a clamping air cylinder, a locking pin and a limiting sleeve are arranged, so that when the heavy fixture is used, the clamping air cylinder can be opened to enable the locking pin to slide in a pin sleeve, and then the locking pin is matched with the fixture daughter board. The locking pin inclined surface and the sub-plate inclined surface are arranged, so that the locking pin inclined surface can be matched with the sub-plate inclined surface to limit the clamp sub-plate no matter what state the clamp sub-plate is in or the clamping cylinder is interrupted in the use process, the device can stably operate when machining extra-heavy workpieces, and the clamping cylinder can be stably rotated even in an overturning state. The clamp daughter board can also be used. The heavy workpiece clamping device can stably operate when clamping a heavy workpiece, meanwhile, the jacking air cylinder, the jacking plate and the mounting plate are arranged, the jacking air cylinder can be opened to enable the jacking plate to abut against the clamp sub-plate to move, and then follow-up treatment and replacement are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a heavy-duty clamp. Background Art

[0002] At present, industrial manufacturing is becoming more and more mature. Whether in production or life, the demands for different parts are not the same, and the processing modes of parts are also different. In many manufacturing processes, it is necessary to clamp the workpiece to be processed by a fixture. Generally, the traditional clamping mechanism adopts cylinders and pressure arms to clamp the workpiece. The cylinder adopts a vertical clamping mode to clamp small and medium-sized workpieces within 100kg in a simple and reliable manner. After clamping the workpiece, other equipment is used to perform external processing on the workpiece. Different processing requirements may require the use of a variety of different equipment for processing, so the processing time is not the same, and the requirements for the clamping equipment are also high. Ensuring stable operation during the processing process is one of the prerequisites for workpiece processing.

[0003] However, when clamping large and extra-heavy workpieces, many disadvantages are exposed. Among them, the traditional clamping structure has two disadvantages of the cylinder. For workpieces weighing more than one ton, the traditional cylinder has two obvious operational defects, which often cause production work to be affected by force majeure factors. First, pneumatics generally have pipeline sealing problems, or sudden air failure, which leads to pipeline pressure relief, resulting in cylinder pressure loss, affecting safety. Second, due to limited force, to achieve the required bearing capacity, the cylinder diameter needs to be above 140, which is difficult to accommodate in the current space. This requires improvements to the structure for clamping large and extra-heavy workpieces to avoid damage to the clamping structure during actual processing, which has a greater impact on the processing results and delays production efficiency. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides a heavy-duty clamp.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A heavy-duty clamp comprises a motherboard and a clamp sub-plate. A locating pin is provided on the top of the motherboard. The clamp sub-plate is placed on the outer wall of the top of the motherboard. The clamp sub-plate cooperates with the locating pin on the top of the motherboard. A clamping cylinder is fixedly installed on the outer wall of the top of the motherboard. A locking pin is connected to the telescopic end of the clamping cylinder through a key. A pin sleeve is fixedly installed on the outer wall of the top of the motherboard.

[0007] As a further solution of the utility model: the locking pin is slidably connected to the inner side wall of the pin sleeve, and the locking pin cooperates with the clamp sub-plate.

[0008] As a further solution of the utility model: the outer side wall of the locking pin is provided with a locking pin inclined surface.

[0009] As a further solution of the utility model: the outer side wall of the clamp sub-plate is provided with a sub-plate inclined surface, and the locking pin inclined surface matches the sub-plate inclined surface.

[0010] As a further solution of the utility model: a bottom support plate is fixedly installed on the bottom outer wall of the motherboard, a mounting plate is fixedly installed between the outer walls on the opposite side of the motherboard, and a side support plate is fixedly installed on the outer side wall of the bottom support plate.

[0011] As a further solution of the utility model: a lifting cylinder is fixedly installed on the top outer wall of the mounting plate, and the telescopic end of the lifting cylinder is connected to the lifting plate through a key.

[0012] As a further solution of the utility model: the lifting plate is in contact with the fixture sub-plate.

[0013] Compared with the prior art, the utility model provides a heavy-duty clamp with the following beneficial effects:

[0014] 1. The utility model is provided with a clamp sub-plate, a clamping cylinder, a locking pin and a limit sleeve. When in use, the clamping cylinder can be opened to allow the locking pin to slide in the pin sleeve, and then cooperate with the clamp sub-plate to lock the clamp sub-plate. Even if the clamping cylinder is cut off, it will not fall off, thereby providing a stable working environment for actual workpiece production and processing and ensuring processing efficiency.

[0015] 2. The utility model is provided with a locking pin inclined surface and a sub-plate inclined surface. The locking pin inclined surface can be limited by the sub-plate inclined surface to ensure that the device can run stably and will not fall when processing extra-heavy workpieces.

[0016] 3. The utility model is provided with a lifting cylinder, a lifting plate and a mounting plate. When in use, the lifting cylinder can be opened to allow the lifting plate to move against the clamp sub-plate, thereby facilitating subsequent processing and replacement.

[0017] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a heavy-duty clamp proposed by the utility model;

[0019] Figure 2 This is a cross-sectional structural schematic diagram of a heavy-duty clamp proposed by the utility model;

[0020] Figure 3The utility model is a schematic diagram of a cross-sectional structure of a motherboard of a heavy-duty clamp.

[0021] In the figure: 1. mother plate; 2. clamping cylinder; 3. locking pin; 4. locking pin inclined surface; 5. sub-plate inclined surface; 6. fixture sub-plate; 7. pin sleeve; 8. mounting plate; 9. side support plate; 10. bottom support plate; 11. lifting cylinder; 12. lifting plate. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Example 1

[0024] A heavy-duty clamp, such as Figure 1-Figure 3 As shown, it includes a motherboard 1 and a fixture sub-board 6. A positioning pin is provided on the top of the motherboard 1. The fixture sub-board 6 is placed on the top outer wall of the motherboard 1. The fixture sub-board 6 cooperates with the positioning pin on the top of the motherboard 1. A clamping cylinder 2 is fixed to the top outer wall of the motherboard 1 by bolts. The telescopic end of the clamping cylinder 2 is connected with a locking pin 3 by a key. A pin sleeve 7 is fixed to the top outer wall of the motherboard 1 by bolts. The locking pin 3 is slidably connected to the inner side wall of the pin sleeve 7. The locking pin 3 cooperates with the fixture sub-board 6.

[0025] When in use, the clamp sub-plate 6 can be first placed on the positioning pin on the top of the motherboard 1 by the robot, and then the clamping cylinder 2 can be opened to extend the locking pin 3. When the locking pin 3 is extended, it passes through the limit of the pin sleeve 7, and the locking pin 3 slides in the pin sleeve 7, and then the locking pin 3 is engaged with the clamp sub-plate 6, so that the clamp sub-plate 6 is locked on the top of the motherboard 1. Even if the clamping cylinder 2 is cut off during flipping, it will not fall off. This provides a stable clamping environment for clamping heavy workpieces and avoids adverse effects on the processing of workpieces due to external factors.

[0026] The outer side wall of the locking pin 3 is provided with a locking pin inclined surface 4, and the outer side wall of the clamp sub-plate 6 is provided with a sub-plate inclined surface 5, and the locking pin inclined surface 4 matches with the sub-plate inclined surface 5;

[0027] When in use, the locking pin bevel 4 and the sub-plate bevel 5 are limited by the bevel, so that no matter what state the clamp sub-plate 6 is in, or if the clamping cylinder 2 is cut off during use, the locking pin bevel 4 can also limit the clamp sub-plate 6 by cooperating with the sub-plate bevel 5, thereby ensuring that the device can operate stably when processing extra-heavy workpieces.

[0028] A bottom support plate 10 is welded to the bottom outer wall of the motherboard 1, a mounting plate 8 is fixed between the outer walls on the opposite side of the motherboard 1 by bolts, a side support plate 9 is fixed to the outer side wall of the bottom support plate 10 by bolts, a lifting cylinder 11 is fixed to the top outer wall of the mounting plate 8 by bolts, and a lifting plate 12 is connected to the telescopic end of the lifting cylinder 11 by a key, and the lifting plate 12 is in contact with the fixture sub-plate 6;

[0029] After the heavy workpiece positioning and clamping is completed, the lifting cylinder 11 can be opened so that the lifting plate 12 drives the top clamp sub-plate 6 to rise, which is convenient for subsequent workpiece replacement and processing.

[0030] Working principle: When in use, the clamp sub-plate 6 can be first placed on the positioning pin on the top of the motherboard 1 through the manipulator, and then the clamping cylinder 2 can be opened to extend the locking pin 3. When the locking pin 3 is extended, it is limited by the pin sleeve 7, and the locking pin 3 slides in the pin sleeve 7, and then the locking pin 3 is engaged with the clamp sub-plate 6, so that the clamp sub-plate 6 is locked on the top of the motherboard 1. The inclined surface limit of the locking pin slope 4 and the inclined surface 5 of the sub-plate can ensure that the clamp sub-plate 6 will not fall no matter what state it is in, or even if the clamping cylinder 2 is cut off during use. After the positioning and clamping of the heavy workpiece is completed, the lifting cylinder 11 can be opened to allow the lifting plate 12 to drive the top clamp sub-plate 6 to rise, which is convenient for subsequent workpiece replacement and processing, and provides a stable clamping environment for the clamping of heavy workpieces, avoiding adverse effects on the processing of workpieces due to external factors.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A heavy-duty fixture, comprising a motherboard (1) and a fixture daughterboard (6), characterized in that: A positioning pin is provided on the top of the motherboard (1); the clamp sub-plate (6) is placed on the outer wall of the top of the motherboard (1); the clamp sub-plate (6) cooperates with the positioning pin on the top of the motherboard (1); a clamping cylinder (2) is fixedly installed on the outer wall of the top of the motherboard (1); a locking pin (3) is connected to the telescopic end of the clamping cylinder (2) via a key; and a pin sleeve (7) is fixedly installed on the outer wall of the top of the motherboard (1).

2. A heavy-duty clamp according to claim 1, characterized in that: The locking pin (3) is slidably connected to the inner side wall of the pin sleeve (7), and the locking pin (3) is matched with the clamp sub-plate (6).

3. A heavy-duty clamp according to claim 2, characterized in that: The outer side wall of the locking pin (3) is provided with a locking pin inclined surface (4).

4. A heavy-duty clamp according to claim 3, characterized in that: The outer side wall of the clamp sub-plate (6) is provided with a sub-plate inclined surface (5), and the locking pin inclined surface (4) matches the sub-plate inclined surface (5).

5. A heavy-duty clamp according to claim 1, characterized in that: A bottom support plate (10) is fixedly mounted on the bottom outer wall of the motherboard (1), a mounting plate (8) is fixedly mounted between the outer walls on the opposite side of the motherboard (1), and a side support plate (9) is fixedly mounted on the outer side wall of the bottom support plate (10).

6. A heavy-duty clamp according to claim 5, characterized in that: A lifting cylinder (11) is fixedly mounted on the top outer wall of the mounting plate (8), and a telescopic end of the lifting cylinder (11) is connected to a lifting plate (12) via a key.

7. A heavy-duty clamp according to claim 6, characterized in that: The lifting plate (12) is in contact with the fixture sub-plate (6).

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