Double-cam shaft cover clamp

Abstract

The utility model discloses a double cam shaft cover clamp which comprises a daughter board clamp, an accompanying clamping device and a mother board, the mother board is provided with a first positioning column, the accompanying clamping device is provided with a first positioning groove matched with the first positioning column, the upper portion of the accompanying clamping device is provided with a second positioning column, and the daughter board clamp is connected to the second positioning column in a sleeved mode. A center pull rod is arranged in the second positioning column, a locking steel ball is arranged on the upper portion of the center pull rod, the hydraulic pump controls the locking steel ball to be pressed and released, and a groove part matched with the locking steel ball is arranged on the inner circumference of the daughter board clamp. The locking steel ball is controlled through the hydraulic pump, and when the center pull rod ascends, the locking block is pushed to move in the through hole to press the spring. And when the spring extrudes the locking steel ball, the locking steel ball extends out and enters the groove part, so that the daughter board clamp is accurately positioned and fixed. And when the central pull rod descends, the locking block is released, so that the spring is released. When external force exists, the locking steel balls can retract into the through holes, and therefore the daughter board clamp can be taken down smoothly.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a double camshaft cover clamp. Background Art

[0002] During the processing of the dual camshaft cover, the dual camshaft cover needs to be positioned. As the number of product types increases, more and more fixtures are needed for the dual camshaft cover. Since the position relationship between the fixture and other tools needs to be readjusted every time the production line changes products, switching between products will cause long downtime and affect the machine tool operating rate.

[0003] The applicant previously applied for a fixture that uses a structure of a daughter board, a mother board, and a follower. When switching products, only the daughter board needs to be replaced to meet the production adjustment of the new product fixture, thereby improving the efficiency of the machine tool. However, the pin hole positioning + manual screw locking method is often used in this fixture. During the switching process, personnel need to enter the production line and the inside of the machine tool, which is inefficient and poses a safety risk. Utility Model Content

[0004] In order to solve the above problems, the present application proposes a dual camshaft cover clamp, which adopts a hydraulic locking method to avoid the problems caused by personnel tightening screws.

[0005] A dual camshaft cover clamp comprises a sub-plate clamp, an accompanying clamp and a mother plate, the mother plate is provided with a first positioning column, the accompanying clamp is provided with a first positioning groove matching the first positioning column, a second positioning column is provided on the upper part of the accompanying clamp, the sub-plate clamp is sleeved on the second positioning column, a center pull rod is provided inside the second positioning column, a locking steel ball is provided on the upper part of the center pull rod, a hydraulic pump controls the compression and release of the locking steel ball, and a groove matching the locking steel ball is provided on the inner periphery of the sub-plate clamp.

[0006] Furthermore, the side wall of the second positioning column is in a frustum shape.

[0007] Furthermore, a sub-board positioning ring is provided on the lower surface of the sub-board fixture.

[0008] Furthermore, the lower surface of the sub-board clamp, the positioning ring and the accompanying clamp form an airtight space.

[0009] Furthermore, the pallet clamp is provided with an airtight detection passage.

[0010] The technical solution of the utility model has the following technical effects:

[0011] The locking steel ball is controlled by the hydraulic pump. When the center pull rod rises, the locking block is pushed to move in the through hole to compress the spring. When the spring squeezes the locking steel ball, the locking steel ball extends and enters the groove, thereby accurately positioning and fixing the sub-board fixture. When the center pull rod descends, the locking block is released to release the spring. When there is an external force, the locking steel ball can be retracted into the through hole, so that the sub-board fixture can be removed smoothly. The locking steel ball can be controlled by the hydraulic pump to achieve accurate positioning and fixation of the sub-board fixture. Therefore, when replacing the sub-board fixture, there is no need to manually adjust the locking and fixing. On the one hand, it avoids safety risks, and on the other hand, it improves production efficiency. In conjunction with the manipulator, fully automated fixture replacement can be achieved.

[0012] The side wall of the second positioning column is in the shape of a truncated cone. The sub-board fixture only needs to be adjusted to an approximate position to achieve the initial positioning of the sub-board positioning ring and the second positioning column during the downward movement of the sub-board fixture, which is more convenient for the operation of the robot and facilitates the automated replacement of the fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of embodiment 1.

[0014] Figure 2 It is a schematic diagram of the cross-sectional structure of the connection between the daughter board fixture and the mother board.

[0015] Figure 3 for Figure 2 Enlarged view of part A.

[0016] Daughter board clamp 1, accompanying clamp 2, motherboard 3, platform surface 33, recessed portion 32, first positioning column 31, first positioning groove 21, lower surface 24, second positioning column 22, daughter board positioning ring 12, through hole 221, locking steel ball 24, hole 222, spring 223, locking block 224, center pull rod 23, movable cavity 26, groove portion 11, airtight detection passage 4, airtight space 5. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail in combination with its embodiments below; it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. For those skilled in the art, other systems, methods and / or features of this embodiment will become apparent after reviewing the following detailed description. It is intended that all such additional systems, methods, features and advantages are included in this specification, included within the scope of the utility model, and protected by the appended claims. Additional features of the disclosed embodiments are described in detail below, and these features will be apparent from the detailed description below.

[0018] The same or similar numbers in the drawings of the embodiments of the utility model correspond to the same or similar parts; in the description of the utility model, it should be understood that if there are terms such as "upper", "lower", "left", "right" and the like indicating directions or positional relationships, they are based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the mechanism or component referred to must have a specific direction. It is constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0019] A dual camshaft cover clamp comprises a sub-plate clamp 1, a traveling clamp 2 and a mother plate 3. The mother plate 3 comprises a platform surface 33, a recessed portion 32 is provided in the middle of the platform surface 33, a first positioning column 31 is provided on the recessed portion 32, the traveling clamp 2 is provided with a first positioning groove 21 matching the first positioning column 31, when the first positioning groove 21 is inserted into the first positioning column 31, the lower surface 24 of the side of the traveling clamp 2 overlaps the platform surface 33, the size of the first positioning groove 21 is slightly larger than the first positioning column 31, when the traveling clamp overlaps the mother plate, the position of the traveling clamp 2 can be fine-tuned.

[0020] A second positioning column 22 is provided on the upper part of the traveling clamp, and the side wall of the second positioning column 22 is truncated cone-shaped. A sub-board positioning ring 12 is provided on the lower surface of the sub-board clamp 1. The sub-board clamp 1 is adjusted to the upper part of the traveling clamp 2, and the sub-board clamp 1 is slowly lowered. When the sub-board positioning ring 12 contacts the second positioning column 22, the positioning ring slides along the truncated cone-shaped side wall of the second positioning column, thereby achieving preliminary positioning of the sub-board clamp, and the sub-board clamp 1 is sleeved on the second positioning column 22.

[0021] A through hole 221 is provided on the side of the second positioning column 22, and a locking steel ball 24 is provided in the through hole 221. The diameter of the steel ball 24 is larger than the hole 222 of the through hole 221, and a part of the locking steel ball 24 extends out of the hole 222. One end of the locking steel ball 24 is connected to the spring 223, and the other end of the spring 223 is connected to the locking block 224. The spring 223 and the locking block 224 are arranged in the through hole 221, and one end of the locking block 224 extends out of the through hole 221. One end of the locking block 224 is inclined. An active cavity 26 is provided inside the second positioning column 22, and the center rod 23 is arranged in the active cavity 26 and can move in the active cavity 26. The lifting and lowering of the center rod 23 can be controlled by a hydraulic pump. The end of the center rod 23 is inclined. When the center rod 23 rises, it pushes the locking block 224 to move in the through hole 221 and compress the spring 223. The inner periphery of the sub-board clamp 1 is provided with a groove 11 matching with the locking steel ball 24. When the compression spring 223 squeezes the locking steel ball 24, the locking steel ball 24 extends out and enters the groove 11, thereby accurately positioning and fixing the sub-board clamp 1. At this time, the lower surface of the sub-board clamp 1, the positioning ring 12 and the traveling clamp 2 form an airtight space 5, and the traveling clamp is provided with an airtight detection passage 4.

[0022] When the central pull rod 23 descends, the locking block 224 is released to release the spring 223. The locking steel ball 24 can be retracted into the through hole 221 when an external force is present. Thus, the sub-board fixture 1 can be removed smoothly.

[0023] 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 dual camshaft cover clamp, characterized in that: It includes a sub-board clamp, a traveling clamp and a motherboard, the motherboard is provided with a first positioning column, the traveling clamp is provided with a first positioning groove matching the first positioning column, the upper part of the traveling clamp is provided with a second positioning column, the sub-board clamp is sleeved on the second positioning column, a center pull rod is provided inside the second positioning column, a locking steel ball is provided on the upper part of the center pull rod, a hydraulic pump controls the compression and release of the locking steel ball, and the inner periphery of the sub-board clamp is provided with a groove matching the locking steel ball.

2. The dual camshaft cover clamp according to claim 1, characterized in that: The side wall of the second positioning column is in a frustum shape.

3. The dual camshaft cover clamp according to claim 1, characterized in that: A sub-board positioning ring is provided on the lower surface of the sub-board clamp.

4. The dual camshaft cover clamp according to claim 1, characterized in that: The lower surface of the sub-board clamp, the positioning ring and the accompanying clamp form an airtight space.

5. The dual camshaft cover clamp according to claim 4, characterized in that: The traveling clamp is provided with an airtight detection passage.

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