CN-121972610-A - Cylinder cover core setting clamp

CN121972610ACN 121972610 ACN121972610 ACN 121972610ACN-121972610-A

Abstract

The application discloses a cylinder cover core setting fixture which comprises a hanging plate, a sand core component and a first limiting component, wherein a first mounting hole vertically penetrating through the sand core component is formed in the position, close to the side part, of the sand core component, the first limiting component comprises a hanging column, a plurality of limiting blocks, a transmission component and a driving source, the hanging column is vertically arranged at the bottom end of the hanging plate, the limiting blocks are radially and slidably arranged in the hanging column, the transmission component is arranged in the hanging column, the output end of the transmission component is matched with the limiting blocks, and the input end of the transmission component is matched with the driving source. The sand core assembly lifting fixture has the beneficial effects that the first mounting hole penetrating through the side part of the sand core assembly is utilized, the lifting column is designed to penetrate through the hole, the driving source drives the transmission assembly to enable the limiting block to radially extend out and support the sand core assembly, the sand core assembly lifting fixing mode is realized, the clamping structures do not need to be arranged on the left side and the right side of the sand core assembly in an extending mode, the transverse space of the fixture is effectively saved, and the damage risk of the sand core assembly in the lifting process is greatly reduced.

Inventors

WU ZHIDONG
WANG LINMIN
PENG JIANMING
YAO CHENGHUAN
LI YANPING
ZHAO QIMIN
LIN PAN
SHENG ZEJIAN

Assignees

象山同家模具制造有限公司

Dates

Publication Date: 20260505
Application Date: 20260325

Claims (10)

1. The utility model provides a core anchor clamps under cylinder cap which characterized in that includes: A hanger plate; A sand core component, a first mounting hole vertically penetrating and arranged near the side part of the sand core component, and The first limiting assembly comprises a hanging column, a plurality of limiting blocks, a transmission assembly and a driving source, wherein the hanging column is vertically arranged at the bottom end of the hanging plate, the limiting blocks are radially arranged in the hanging column in a sliding manner, the transmission assembly is arranged in the hanging column, the output end of the transmission assembly is matched with the limiting blocks, and the input end of the transmission assembly is matched with the driving source; And then, the driving source is suitable for driving the limiting block to slide and extend out of the hanging column through the transmission assembly so as to enable the limiting block to prop against the sand core assembly, and further bearing of the sand core assembly in the vertical direction is achieved.
2. The cylinder cover core setting clamp as set forth in claim 1, wherein the transmission assembly comprises a piston block, wherein the piston block is arranged in the cavity of the suspension post in a sealed vertical sliding manner, and the limiting block is matched with the elastic piece and is further suitable for being retracted into the suspension post under the action of elastic force; when the lifting is carried out, the driving source is suitable for driving the piston block to move downwards through pressure medium, and then the piston block is suitable for driving the limiting block to extend in a sliding mode through wedge-shaped extrusion fit.
3. The cylinder head core setting fixture as claimed in claim 2, wherein the outer side of the limiting block is provided with a clamping groove, the elastic piece is an annular spring, and the annular spring is sleeved on the periphery of the hanging column and is clamped into the clamping groove, so that elastic installation of a plurality of limiting blocks is realized.
4. The cylinder cover core setting fixture of claim 1, wherein the transmission assembly comprises a piston block and a plurality of connecting rods, the piston block is arranged in a cavity of the suspension post in a sealed vertical sliding manner, and two ends of each connecting rod are respectively hinged with the piston block and the corresponding limiting block; when the lifting is carried out, the driving source is suitable for driving the piston block to move downwards through pressure medium, so that the limiting block slides and stretches out under the pushing of the connecting rod.
5. The cylinder head core setting fixture as claimed in claim 4, wherein the connecting rod is parallel or collinear with the axis of the limiting block after the limiting block is fully extended.
6. The cylinder head core setting fixture as set forth in any one of claims 2-5, wherein the sand core assembly is provided with a second mounting hole, the second mounting hole is positioned right below the first mounting hole, and the diameter of the first mounting hole is larger than that of the second mounting hole; the cylinder cover core setting clamp further comprises a second limiting assembly, the second limiting assembly comprises a limiting rod and an elastic cylinder, the limiting rod is arranged at the bottom end of the hanging column, the elastic cylinder is sleeved outside the limiting rod, and the inside of the elastic cylinder is communicated with the lower end of the cavity through a runner inside the limiting rod; When the sand core assembly is hoisted, the piston block moves downwards and drives the elastic cylinder to expand and prop against the second mounting hole through pressure medium, so that the sand core assembly is limited.
7. The cylinder cover core setting fixture as set forth in claim 6, wherein the sand core assembly top is provided with a plurality of second mounting holes arranged vertically near the side, the cylinder cover core setting fixture further comprises a second limiting assembly, the second limiting assembly comprises a plurality of limiting rods and a plurality of elastic cylinders, the limiting rods are vertically arranged at the bottom ends of the hanging plates, and the elastic cylinders are sleeved outside the corresponding limiting rods and are connected and matched with the driving source; when the sand core assembly is hoisted, the driving source drives the elastic cylinder to expand and prop against the second mounting hole through pressure medium, and therefore limiting of the sand core assembly is achieved.
8. The cylinder head core setting fixture as set forth in claim 7, wherein the elastic tube has outer transverse and longitudinal staggered anti-slip ribs for increasing the friction between the elastic tube and the inner wall of the second mounting hole.
9. The cylinder head core setting fixture of claim 1, wherein the number of the limiting blocks is four or five, and the limiting blocks are uniformly distributed along the circumferential direction of the hanging column.
10. The cylinder head core setting clamp as set forth in claim 6, wherein the limiting rod is detachably mounted and matched with the bottom end of the hanging column, the runner comprises a first groove body and a second groove body, the first groove body is arranged at the axis of the limiting rod and is communicated with the cavity, the second groove body is arranged outside the limiting rod and is communicated with the second groove body, and the elastic cylinder is coated on the outer portion of the groove body, so that pressure medium can enter the elastic cylinder through the first groove body and the second groove body.

Description

Cylinder cover core setting clamp Technical Field The application relates to the technical field of sand casting, in particular to a cylinder cover core setting clamp. Background Sand casting is a casting process for producing castings by using clay bonded sand as a molding material, and mainly comprises three types of clay green sand, dry sand and surface dry sand. As shown in fig. 2, the sand core assembly for sand casting molding of the cylinder cover of the automobile is formed by combining a plurality of sand cores with different shapes and functions, such as an air inlet sand core, an air outlet sand core, a water jacket sand core, an oil passage sand core and the like. In sand casting, it is necessary to place the sand core assembly in a designated position, i.e., the core setting process. In the core setting process, a clamp is needed, as shown in fig. 1, the existing clamp clamps the sand core assembly in a four-side clamping mode, and the clamping assembly comprises an air cylinder and a clamping plate on the left side and the right side, so that the side face of the sand core assembly is tightly abutted and fixed. Therefore, a certain action space is required to be provided for the clamping assembly in the left-right direction, and the inner space of the mould for placing the sand core assembly is limited, so that the clamping assembly is easy to collide and interfere with the inner wall of the mould during action, and the sand core assembly is damaged. Therefore, how to improve the existing clamp to overcome the above problems is a problem to be solved by those skilled in the art. Disclosure of Invention One of the purposes of the application is to provide a cylinder cover core setting clamp. The cylinder cover core setting fixture comprises a hanging plate, a sand core component and a first limiting component, wherein a first mounting hole vertically penetrating through the sand core component is formed in the position, close to the side, of the sand core component, the first limiting component comprises a hanging column, a plurality of limiting blocks, a transmission component and a driving source, the hanging column is vertically arranged at the bottom end of the hanging plate, the limiting blocks are arranged in the hanging column in a sliding mode along the radial direction, the transmission component is arranged in the hanging column, the output end of the transmission component is matched with the limiting blocks, the input end of the transmission component is matched with the driving source, the hanging column is suitable for moving downwards and penetrating through the first mounting hole when being hoisted, and then the driving source is suitable for driving the limiting blocks to slide and stretch out of the hanging column through the transmission component so that the limiting blocks are propped against the sand core component, and further supporting of the sand core component in the vertical direction is achieved. The transmission assembly comprises a piston block, wherein the piston block is arranged in a cavity of the hanging column in a sealed vertical sliding mode, the limiting block is matched with the elastic piece, the limiting block is further suitable for being retracted into the hanging column under the action of elastic force, and when the hanging is carried out, the driving source is suitable for driving the piston block to move downwards through pressure medium, and the piston block is further suitable for driving the limiting block to extend in a sliding mode through wedge-shaped extrusion. Preferably, the outside of stopper has the draw-in groove, the elastic component is annular spring, annular spring cover is located the davit periphery and card are gone into in the draw-in groove, and then realize a plurality of the elastic installation of stopper. Preferably, the transmission assembly comprises a piston block and a plurality of connecting rods, the piston block is arranged in the cavity of the hanging column in a sealed vertical sliding mode, two ends of each connecting rod are hinged to the piston block and the corresponding limiting block respectively, and when the hanging is carried out, the driving source is suitable for driving the piston block to move downwards through pressure medium, and then the limiting block slides and stretches out under the pushing of the connecting rods. Preferably, after the limiting block is fully extended, the connecting rod is parallel or collinear with the axis of the limiting block. Preferably, the sand core assembly is provided with a second mounting hole, the second mounting hole is positioned right below the first mounting hole, the diameter of the first mounting hole is larger than that of the second mounting hole, the cylinder cover lower core clamp further comprises a second limiting assembly, the second limiting assembly comprises a limiting rod and an elastic cylinder, the limiting rod is mounted at the bottom end of th