CN215392338U - Core setting clamp with novel structure - Google Patents

Abstract

The utility model discloses a lower core clamp with a novel structure, which comprises a lower core support, wherein the lower core support comprises a support arm, a support arm body is a special-shaped metal block, a first support cross beam is arranged at the middle upper part of the left end surface of the support arm, the support arm below the first support cross beam is bent leftwards by a certain angle, a transverse plate is arranged at the top of the support arm, a limiting plate is arranged on the left end surface of the transverse plate, the middle lower part of the support arm is bent leftwards to form a short hook, a lower core backing plate groove is formed in the left end surface of the support arm and above the short hook, a lower core backing plate is arranged in the lower core backing plate groove, a clamp arm is arranged below the transverse plate at the top of the support arm, the clamp arm comprises a swing plate, a swing shaft is respectively arranged on the front end surface and the rear end surface of the swing plate, and a lifting rod is arranged on the swing shaft. The base plate at the clamping end of the sand core clamping device is convenient to replace, the actual contact area is increased, the sand core is prevented from being clamped and cracked due to overlarge pressure, and the sand core can be automatically clamped.

Description

Core setting clamp with novel structure

[ technical field ] A method for producing a semiconductor device

The utility model belongs to the technical field of casting, and particularly relates to a core setting clamp with a novel structure.

[ background of the utility model ]

Casting is a manufacturing method with a long history, and in the development of modern industrial technology, casting still has an irreplaceable position in mechanical manufacturing.

The casting mould is generally formed by combining an outer sand mould and a sand core, and the sand casting still has great advantages because the molding material used for sand casting is cheap and easy to obtain, and the sand casting has low cost, simple production process and short production period compared with other casting methods. During casting, the sand core is put into an outer sand mold by the traditional manual method and a clamp is used for setting the core. The core setting clamp is generally carried out in a mode of assisting a rubber clamping surface by a steel or steel chuck, a clamping position is provided with a clamping plate bonded with rubber and the steel, and the phenomenon that the sand core is cracked or unstably clamped is easy to occur when the sand core is clamped by the structure. The clamping instability is usually caused by aging and hardening of a rubber part, the actual clamping contact surface is too small, the sand core is cracked due to overlarge pressure intensity, some clamps cannot automatically clamp the sand core, and the cost can be increased by adding auxiliary equipment such as an air cylinder and a motor.

The above background disclosure is only for the purpose of aiding understanding of the inventive concepts and solutions of the present invention, and it is not necessary for them to belong to the prior art of this patent application, and it should not be used for evaluating the novelty and inventive step of this application in the case that there is no clear evidence that the above contents are disclosed at the filing date of this patent application.

[ Utility model ] content

The utility model aims to provide a core setting clamp with a novel structure, which solves the problems that the clamping end of the existing core setting clamp is aged and inconvenient to replace, the actual contact area is too small, the sand core is easy to crack due to too large pressure, the sand core cannot be automatically clamped and the like.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a lower core anchor clamps of novel structure, includes the lower core support, the lower core support includes the support arm, the support arm body is a special-shaped metal block, the well upper portion of support arm left end face is equipped with first support crossbeam, the support arm of first support crossbeam below bends certain angle left, the top of support arm is equipped with a diaphragm, the left end face of diaphragm is equipped with a limiting plate, the well lower part of support arm is bent left and is formed the short hook, the left end face of the top of short hook, support arm has seted up lower core backing plate groove, lower core backing plate inslot is equipped with the lower core backing plate, the below of the diaphragm at support arm top is equipped with the anchor clamps arm, the anchor clamps arm includes the swing board, the front and back terminal surface of swing board is equipped with a swing axle respectively, be equipped with the lifting rod on the swing axle.

Furthermore, the number of the support arms is two, a second support cross beam is arranged at the middle upper part of the right end face of the two support arms, and a third support cross beam is arranged at the middle lower part of the right end face of the two support arms.

Furthermore, two bayonets which are symmetrically distributed are formed in the side face of the first support cross beam on the left end face of the support arm.

Furthermore, the top surface of the short hook is provided with a short hook-shaped supporting plate.

Further, the lower core backing plate groove is in a dovetail groove shape, the cross section of the lower core backing plate is also in a dovetail groove shape, and when the lower core backing plate is arranged in the lower core backing plate groove, the left end face of the lower core backing plate protrudes out of the left end face of the support arm.

Furthermore, the lower core backing plate and the supporting plate on the top surface of the short hook are made of polyurethane.

Further, the section of the swing shaft is in a shape of a circular arc on the middle left side and a trapezoid on the middle right side.

Furthermore, one end of the lifting rod is provided with a circular ring, and the shape of the inner side of the circular ring is consistent with that of the swinging shaft.

Further, the inner diameter of the ring of the lift lever is larger than the outer diameter of the swing shaft.

The utility model has the following beneficial effects:

the lower core backing plate of the clamping end of the lower core clamp and the supporting plate on the top surface of the short hook are detachable, so that when the lower core clamp is worn, the original precision can be recovered only by technical replacement, the defects of high cost and time-consuming replacement after the conventional rubber and steel are bonded are overcome, and the effect of clamping the lower core by the clamp is ensured; the lower core backing plate at the clamping end of the lower core clamp slightly protrudes out of the support arm, the lower core backing plate can expand due to the pressure when contacting with a sand core, the actual contact area is increased, the lower core backing plate can deform, so that the lower core backing plate has a buffering function when clamping the sand core, sufficient compression allowance is provided when the lower core backing plate is extruded, the sand core can be prevented from being cracked when clamping the sand core, and the integrity of the sand core is ensured; this core setting anchor clamps's anchor clamps arm can tighten up the support arm when carrying the core setting anchor clamps, can open the support arm during the below, and can not exert too big pressure, has realized the self-holding psammitolite, and protection psammitolite integrity.

[ description of the drawings ]

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a front view of the present invention;

FIG. 2 is an enlarged view of the right-middle portion of the front view of the present invention;

fig. 3 is a right side view of the present invention.

1. A core setting support; 1-1, a support arm; 1-2, a transverse plate; 1-3, a limiting plate; 1-4, short hook; 2. a clamp arm; 2-1, a swing plate; 2-2, a swing shaft; 2-3, lifting the rod; 2-4, a circular ring; 3. fixing the bolt; 4. a core backing plate is arranged; 5. a support plate; 6. a sand core; 7. a first support beam; 8. a second bracket beam; 9. a third bracket beam; 10. a connecting rod.

[ detailed description ] embodiments

The following is a detailed description of specific embodiments.

The present invention will be described in further detail with reference to specific embodiments. It should be emphasized that the following description is merely exemplary in nature and is not intended to limit the scope of the utility model or its application.

As shown in fig. 1-3, a core setting fixture with a novel structure comprises a core setting support 1, wherein the core setting support 1 comprises support arms 1-1, a body of the support arms 1-1 is a special-shaped metal block, the number of the support arms 1-1 is two, a first support beam 7 is arranged on the middle upper portion of the left end surface of the support arms 1-1, two symmetrically distributed bayonets are arranged on the side surface of the first support beam 7, fixing bolts are arranged in the bayonets and used for clamping the swing plates 2-1, a second support beam 8 is arranged on the middle upper portion of the right end surface of the two support arms 1-1, and a third support beam 9 is arranged on the middle lower portion of the right end surface of the two support arms 1-1. A support arm 1-1 below a first support beam 7 is bent leftwards at a certain angle, a transverse plate 1-2 is arranged at the top of the support arm 1-1, a limiting plate 1-3 is arranged on the left end surface of the transverse plate 1-2, the middle lower part of the support arm 1-1 is bent leftwards to form a short hook 1-4, a short hook-shaped supporting plate 5 is arranged on the top surface of the short hook 1-4, a lower core backing plate groove is arranged above the short hook 1-4 and on the left end surface of the support arm, a lower core backing plate 4 is arranged in the lower core backing plate groove, the lower core backing plate groove is in a dovetail groove shape, the lower core backing plate groove can be a large dovetail groove or a plurality of small dovetail grooves to form a large dovetail groove, the cross section of the lower core backing plate 4 is also in a dovetail groove shape, the lower core backing plate 4 can be a large dovetail groove, and the bottom surface of the lower core backing plate in contact with the lower core backing plate groove can also be a plurality of small dovetail grooves to form a large dovetail groove, the laminating of a plurality of dovetail grooves can increase frictional force, improves stability, and when lower core backing plate 4 was arranged in lower core backing plate groove, the left end face of lower core backing plate 4 protruded the left end face of support arm 1-1. The lower core backing plate 4 and the supporting plate 5 on the top surface of the short hook are made of polyurethane.

A clamp arm 2 is arranged below a transverse plate 1-2 at the top of the support arm 1-1, the clamp arm 2 comprises a swing plate 2-1, a swing shaft 2-2 is respectively arranged on the front end surface and the rear end surface of the swing plate 2-1, the section of the swing shaft 2-2 is arc-shaped on the middle left side and is trapezoidal on the middle right side, and a lifting rod 2-3 is arranged on the swing shaft. One end of the lifting rod 2-3 is provided with a circular ring 2-4, the shape of the inner side of the circular ring 2-4 is consistent with that of the swinging shaft 2-2, and the inner diameter of the circular ring 2-4 of the lifting rod 2-3 is larger than the outer diameter of the swinging shaft 2-2.

The lower core support and the clamp arms are distributed in a left-right symmetrical mode as shown in figure 1.

The use process comprises the following steps: as shown in figures 1 and 2, a lower core backing plate 4 in a lower core backing plate groove of a support arm 1-1 of a lower core support 1 and a support plate 5 on a short hook 1-4 are attached to two end surfaces of a side surface and a bottom surface of a sand core 6, then a chain ring on a swinging rod 2-3 is buckled by a driving device such as a hook, a lower core clamp is lifted, the lower core clamp moves upwards to lift the sand core 6, figure 1 shows the state that the sand core 6 is lifted by the lower core clamp, the total length of a lifting rod 2-3 of the lower core clamp is smaller than the length distance of the lower core support 1 on the left side and the right side, because the lifting rod 2-3 has the mass weight and the inner diameter of a circular ring 2-4 at one end of the lifting rod 2-3 is larger than the outer diameter of the swinging shaft 2-2, when the lifting rod 2-3 is lifted, the rod body can swing upwards by a certain angle and is put down, the rod body of the lifting rod 2-3 can swing downwards by a certain angle, according to the principle, when the lower core clamp is lifted upwards, the lifting rod 2-3 on the right side of the lower core clamp moves clockwise, the circular ring 2-4 on the lifting rod 2-3 drives the swinging shaft 2-2, the swinging plate 2-1 and the lower core support 1 to move clockwise, the lower core support 1 on the left side of the lower core clamp and the clamp arm 2 move anticlockwise oppositely, at the moment, the lower core backing plate 4 on the support arm 1-1 of the lower core clamp and the support plate 5 on the short hook 1-4 can be clamped towards the center of the sand core 6, the lower core backing plate 4 is pressed and deformed, the contact area between the lower core backing plate 4 and the sand core 6 is increased, the sand core 6 cannot be collided, the integrity of the end surface of the sand core 6 is protected, when the lower core clamp is put down, the swinging shaft 2-3 on the right side of the lower core clamp sinks due to the self gravity, the core setting fixture is driven to swing anticlockwise, the swing shaft 2-3 drives the swing shaft 2-2, the swing plate 2-1 and the core setting support 1 to swing anticlockwise, the core setting support 1 on the left side of the core setting fixture and the fixture arm 2 swing clockwise in an opposite mode, the core setting cushion plate 4 on the support arm 1-1 and the support plate 5 on the short hook 1-4 are separated from two end faces of the side face and the bottom face of the sand core 6, the core setting fixture and the sand core 6 do not have end faces in tight contact, and the core setting fixture can be moved away at the moment.

The other ends of the swing shafts 2-2 on the front and rear end surfaces of the swing plates 2-1 are respectively provided with a bearing (not shown), and the outer diameters of the bearings are provided with a connecting rod 10 for fixing the relative positions of the lower core supports 1 and the clamp arms 2 on the left and right sides of the lower core clamp.

The lower core backing plate of the clamping end and the supporting plate on the top surface of the short hook are detachable, so that when the lower core backing plate is worn, the original precision can be recovered only by technical replacement, the defects of high cost and time consumption in replacement after the conventional rubber is bonded with steel are overcome, and the effect of clamping the lower core by the clamp is ensured; the lower core backing plate at the clamping end of the lower core clamp slightly protrudes out of the support arm, the lower core backing plate can expand due to the pressure when contacting with a sand core, the actual contact area is increased, the lower core backing plate can deform, so that the lower core backing plate has a buffering function when clamping the sand core, sufficient compression allowance is provided when the lower core backing plate is extruded, the sand core can be prevented from being cracked when clamping the sand core, and the integrity of the sand core is ensured; this core setting anchor clamps's anchor clamps arm can tighten up the support arm when carrying the core setting anchor clamps, can open the support arm during the below, and can not exert too big pressure, has realized the self-holding psammitolite, and protection psammitolite integrity.

The above description should not be taken as limiting the utility model to the specific embodiments, but rather, as will be readily apparent to those skilled in the art to which the utility model pertains, numerous simplifications or substitutions may be made without departing from the spirit of the utility model, which should be construed to fall within the scope of the utility model as defined in the claims appended hereto.

Claims (9)

1. The utility model provides a core setting anchor clamps of novel structure which characterized in that: including the lower core support, the lower core support includes the support arm, the support arm body is a special-shaped metal block, the well upper portion of support arm left end face is equipped with first support crossbeam, the support arm of first support crossbeam below bends certain angle left, the top of support arm is equipped with a diaphragm, the left end face of diaphragm is equipped with a limiting plate, the well lower part of support arm bends left and forms the short hook, the left end face of the top of short hook, support arm has seted up lower core backing plate groove, the lower core backing plate inslot is equipped with the lower core backing plate, the below of the diaphragm at support arm top is equipped with anchor clamps arm, anchor clamps arm includes the swing board, the terminal surface is equipped with a swing axle respectively around the swing board, be equipped with the lifting rod on the swing axle.

2. The core setting clamp with a novel structure as claimed in claim 1, wherein: the support arms are two, a second support cross beam is arranged at the middle upper part of the right end face of the two support arms, and a third support cross beam is arranged at the middle lower part of the right end face of the two support arms.

3. The core setting clamp with a novel structure as claimed in claim 1, wherein: two bayonets which are symmetrically distributed are formed in the side face of the first support cross beam on the left end face of the support arm.

4. The core setting clamp with a novel structure as claimed in claim 1, wherein: the top surface of the short hook is provided with a short hook-shaped supporting plate.

5. The core setting clamp with a novel structure as claimed in claim 1, wherein: the lower core backing plate groove is in a dovetail groove shape, the cross section of the lower core backing plate is also in the dovetail groove shape, and when the lower core backing plate is arranged in the lower core backing plate groove, the left end face of the lower core backing plate protrudes out of the left end face of the support arm.

6. The core setting clamp with a novel structure as claimed in claim 1, wherein: the lower core backing plate and the supporting plate on the top surface of the short hook are made of polyurethane.

7. The core setting clamp with a novel structure as claimed in claim 1, wherein: the section of the swing shaft is arc-shaped at the middle left side, and is trapezoidal at the middle right side.

8. The core setting clamp with a novel structure as claimed in claim 1, wherein: one end of the lifting rod is provided with a circular ring, and the shape of the inner side of the circular ring is consistent with that of the swinging shaft.

9. The core setting clamp with a novel structure as claimed in claim 1, wherein: the inner diameter of the circular ring of the lifting rod is larger than the outer diameter of the swinging shaft.

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