CN220311823U

CN220311823U - Inner core perforating device

Info

Publication number: CN220311823U
Application number: CN202321608165.8U
Authority: CN
Inventors: 赵恩亮; 刘晓; 潘杰
Original assignee: Jiangyin Machine Building Co ltd
Current assignee: Jiangyin Machine Building Co ltd
Priority date: 2023-06-21
Filing date: 2023-06-21
Publication date: 2024-01-09
Anticipated expiration: 2033-06-21

Abstract

The utility model discloses an inner core punching device which comprises a support, a drill bit assembly and an inner core mould, wherein the drill bit assembly is arranged on the support in a sliding manner along the up-down and front-back directions, the inner core mould is matched with the inner core and used for placing the inner core, the inner core mould is arranged on the support in a sliding manner along the left-right directions, a punching core head is arranged on the inner core, and the drill bit assembly can move relative to the support to enable the drill bit assembly to be aligned with the punching core head. The inner core punching device can ensure that the inner core punching operation can be efficiently and safely carried out, and has the advantages of simple structure, convenient use, accurate positioning and low cost.

Description

Inner core perforating device

Technical Field

The utility model relates to the technical field of press shell inner cores, in particular to an inner core punching device.

Background

The inner cavity structure of the turbocharger type product is complex, the inner core cannot be emptied through a die in general, the inner core of the inner cavity is wrapped by molten iron during casting, high-temperature molten iron can rapidly heat the inner core to generate a large amount of gas, and when the air pressure exceeds the surface tension of the molten iron, the gas enters the molten iron to finally generate air hole defects in the casting. Through a large number of experiments, the core head of the inner core is perforated to open up an exhaust channel, so that the gas can be exhausted along the exhaust channel after the gas is emitted from the inner core, the defect of air holes caused by the gas emitted from the inner core of the inner cavity is basically overcome, and the perforation of the inner core gradually becomes the key for producing the product.

In the prior art, the inner core is punched manually by a worker through an electric hand drill. The punching mode is characterized by small size of the inner core, high punching difficulty and easy damage of the inner core. In addition, when punching, the workman needs to hold the inner core in one hand, and the hand holds the electric hand drill and punches, and this has great potential safety hazard.

Disclosure of Invention

The utility model aims to provide an inner core punching device which is convenient to operate, high in efficiency and high in safety, aiming at the problems in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the inner core punching device comprises a support, a drill bit assembly and an inner core clamping fixture, wherein the drill bit assembly can be arranged on the support in a sliding mode along the up-down and front-back directions, the inner core clamping fixture is matched with the inner core and used for placing the inner core, the inner core clamping fixture can be arranged on the support in a sliding mode along the left-right directions, a punching core head is arranged on the inner core, and the drill bit assembly can move relative to the support to enable the drill bit assembly to be aligned with the punching core head;

the drill bit assembly comprises a fixed seat, a rotating seat and a drill bit, wherein the rotating seat is rotatably arranged on the fixed seat, the drill bit is arranged on the rotating seat, and the fixed seat can be arranged on the bracket in a sliding manner along the up-down and front-back directions;

the punching device further comprises a second guide rail extending along the front-back direction and a third guide rail extending along the up-down direction, the fixed seat is matched with the second guide rail and can be arranged on the second guide rail in a sliding manner along the length extending direction of the second guide rail, the third guide rail is fixedly arranged on the bracket, and the second guide rail can be arranged on the third guide rail in a sliding manner along the length extending direction of the third guide rail;

the punching device further comprises a first fixing beam which is matched with the third guide rail and can be arranged on the third guide rail in a sliding mode along the length extending direction of the third guide rail, the second guide rail is fixedly arranged on the first fixing beam, the first fixing beam is located on one side of the upper side and the lower side of the drill bit assembly, the punching device further comprises a second fixing beam which is arranged on the other side of the drill bit assembly and used for fixing the drill bit assembly, the second fixing beam is matched with the third guide rail and can be arranged on the third guide rail in a sliding mode along the length extending direction of the third guide rail, and the punching device further comprises a locking assembly which locks the positions of the first fixing beam and the second fixing beam respectively.

Preferably, the punching device further comprises a limiting member for limiting the left-right sliding of the inner core mold, and the limiting member is disposed on the support in a position adjustable along the sliding direction of the inner core mold.

Preferably, the support is provided with a first guide rail extending in the left-right direction, and the inner core clamping fixture is matched with the first guide rail and can be slidably arranged on the first guide rail along the length extending direction of the first guide rail.

Further, the first guide rails are respectively arranged on the front side and the rear side of the support, the inner core clamping fixture is arranged between the first guide rails on the front side and the rear side, and the first guide rails on the two sides extend obliquely from bottom to top to the outer side of the support.

Further, the first guide rail is inclined at an angle of 5 to 10 ° with respect to the vertical plane.

Preferably, the drill bit is detachably arranged on the rotary seat.

Preferably, the middle part of the support is provided with an opening penetrating through the upper end face and the lower end face of the support, and the inner core clamping fixture can be arranged in the opening in a sliding manner along the left-right direction.

Preferably, sand discharging holes penetrating through the upper end face and the lower end face of the inner core mould are formed in the inner core mould.

Preferably, the drill bit assemblies are provided with a plurality of groups, and the drill bit assemblies are respectively arranged on the same side and/or different sides of the left side and the right side of the bracket.

Preferably, a gap is provided between the core mould and the core, the gap being no more than 0.2mm.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages: the inner core punching device can ensure that the inner core punching operation can be efficiently and safely carried out, and has the advantages of simple structure, convenient use, accurate positioning and low cost.

Drawings

Fig. 1 is one of perspective views (unidirectional single hole) of the core punching device of the present embodiment;

FIG. 2 is a second perspective view of the core drilling apparatus according to the present embodiment (unidirectional single hole);

fig. 3 is a schematic top view of the core drilling apparatus of the present embodiment;

fig. 4 is a schematic perspective view (bi-directional punching) of the core punching device of the present embodiment.

Wherein: 1. a bracket; 11. a first guide rail; 12. a second guide rail; 13. opening holes; 2. an inner core mould; 21. a sand discharge hole; 3. a drill bit assembly; 31. a fixing seat; 32. a rotating seat; 33. a drill bit; 4. a first fixed beam; 41. a second guide rail; 5. a second fixed beam; 6. a locking assembly; 7. a limiting piece; 100. an inner core; 101. and (5) punching the core print.

Detailed Description

For better understanding of the present utility model, the objects, technical solutions and advantages thereof will be more clearly understood by those skilled in the art, and the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. It should be noted that the implementation manner not shown or described in the drawings is a manner known to those of ordinary skill in the art. Additionally, although examples of parameters including particular values may be provided herein, it should be appreciated that the parameters need not be exactly equal to the corresponding values, but may be approximated to the corresponding values within acceptable error margins or design constraints. It will be apparent that the described embodiments are merely some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, in the description and claims, are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, article, or device that comprises a list of steps or elements is not necessarily limited to those steps or elements that are expressly listed or inherent to such process, method, article, or device.

In the description of the present utility model, reference is made to the directions of "front", "rear", "left", "right", "up", "down", etc. as shown in fig. 3, the left direction in the drawing is "left", the right direction in the drawing is "right", the upper direction in the drawing is "rear", the lower direction in the drawing is "front", the directions perpendicular to the viewing angle in the drawing are "up" and "down", and the above directions are defined only for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element to be referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the utility model.

As shown in fig. 1 to 4, the core perforating device of the present utility model comprises a bracket 1, a core mold 2 and a drill bit assembly 3.

The inner core mould 2 is used for placing the inner core 100, the inner core mould 2 is matched with the structure of the inner core 100, and the inner core mould 2 can be provided with multiple cores according to different inner cores 100, so that the punching device can be suitable for punching multiple cores 100, the universality of the punching device can be improved, and the cost can be reduced.

The clearance between the inner core mould 2 and the inner core 100 is not more than 0.2mm, so that the inner core 100 is ensured to be stably fixed on the inner core mould 2, and meanwhile, the inner core 100 and the inner core mould 2 are convenient to assemble and disassemble.

The core mold 2 is slidably provided on the bracket 1 in the left-right direction. Specifically, the bracket 1 is fixedly provided with a first guide rail 11 extending in the left-right direction, and the core mold 2 is matched with the first guide rail 11 and is slidably disposed on the first guide rail 11 along the length extending direction of the first guide rail 11. When the inner core mould 2 slides leftwards or rightwards to perform punching operation, the sliding stability of the inner core mould 2 relative to the first guide rail 11 can be improved through the matching of the inner core mould 2 and the first guide rail 11, so that the punching accuracy is improved.

In this embodiment, the first guide rails 11 are respectively disposed on the front and rear sides of the support 1, and the core mold 2 is disposed between the first guide rails 11 on the front and rear sides. The first guide rail 11 on each side extends obliquely from the lower side up to the outside of the bracket 1. The first rail 11 is preferably inclined at an angle of 5 to 10 ° to the vertical. Thus, the inner core clamping fixture 2 can be conveniently disassembled and assembled, and the inner core clamping fixture 2 can be quickly disassembled from the first guide rail 11, and the different inner core clamping fixtures 2 can be quickly replaced and installed so as to punch different inner cores 100.

The drill bit assembly 3 can be slidably arranged on the bracket 1 along the up-down direction and the front-back direction, the core 100 is provided with a punching core head 101, and the drill bit assembly 3 can move relative to the bracket 1 along the up-down direction and/or the front-back direction to adjust the position, so that the drill bit assembly 3 can be aligned with the punching core head 101 for punching operation.

Specifically, the drill bit assembly 3 includes a fixed seat 31, a rotary seat 32, and a drill bit 33. The holder 31 is slidably provided on the bracket 1 in the up-down direction and the front-back direction, the rotary seat 32 is rotatably provided on the holder 31, the drill 33 is fixedly provided on the rotary seat 32, and the drill 33 is preferably coaxially provided with the rotary seat 32. The rotary base 32 drives the drill bit 33 to rotate when the drilling operation is performed through the drill bit assembly 3.

Preferably, the drill bit 33 is detachably provided on the rotary base 32 so that the perforation diameter can be controlled by exchanging the drill bit 33.

The rotary seat 32 can be driven to rotate relative to the fixed seat 31 in a pneumatic or electric mode, and the rotating speed of the rotary seat 32 can be adjusted, so that the punching requirements of different inner cores 100 can be met.

The punching device further comprises a second guide rail 41 and a third guide rail 12. The second rail 41 extends in the front-rear direction, and the third rail 12 extends in the up-down direction. The fixing base 31 is matched with the second guide rail 41, and the fixing base 31 is slidably disposed on the second guide rail 41 along the length extending direction of the second guide rail 41. The third rail 12 is fixedly provided on the bracket 1, and the second rail 41 is slidably provided on the third rail 12 along a length extending direction of the third rail 12.

When the second guide rail 41 slides up and down relative to the third guide rail 12, the fixing seat 31, the rotating seat 32 and the drill bit 33 are driven to slide up and down synchronously. When the fixed seat 31 slides back and forth relative to the second guide rail 41, the rotary seat 32 and the drill bit 33 are driven to slide synchronously along the same direction. In this way, movement of the drill bit assembly 3 may be guided and limited so that the drill bit assembly 3 can be moved into alignment with the core print 101.

In this embodiment, the punching device further includes a first fixing beam 4, the first fixing beam 4 is matched with the third guide rail 12, the first fixing beam 4 is slidably disposed on the third guide rail 12 along the length extending direction of the third guide rail 12, and the second guide rail 41 is disposed on the first fixing beam 4.

The first fixing beam 4 is located at one of the upper and lower sides of the fixing base 31, the punching device further comprises a second fixing beam 5, the second fixing beam 5 is located at the other of the upper and lower sides of the fixing base 31, the second fixing beam 5 is also matched with the third guide rail 12, the second fixing beam 5 can be slidably arranged on the third guide rail 12 along the length extending direction of the third guide rail 12, and the position of the fixing base 31 can be locked by making the second fixing beam 5 slide up and down, so that punching operation can be performed.

The punching device further comprises a locking assembly 6, by means of which locking assembly 6 the position of the first fixing beam 4 and the second fixing beam 5 on the third guide rail 12 is locked.

The punching device further comprises a limiting piece 7, wherein the limiting piece 7 is used for limiting the left and right sliding of the inner core mould 2, so that the moving distance of the inner core mould 2 can be limited in the punching operation, and the punching depth of the inner core 100 can be controlled. The stopper 7 is provided on the bracket 1 so as to be positionally adjustable in the sliding direction of the core mold 2. In this embodiment, the limiting member 7 is an adjusting screw.

The middle part of support 1 is provided with the trompil 13 that runs through the upper and lower both ends face of support 1, and first guide rail 11 is located on the both sides wall of trompil 13 respectively, and inner core mould 2 can set up in this trompil 13 along the left and right sides ground with sliding. The inner core mould 2 is provided with sand discharge holes 21 penetrating through the upper end face and the lower end face of the inner core mould 2. By the arrangement, most of crushed sand generated by punching can be discharged to the outside of the punching device.

The drill bit assemblies 3 may be provided with a plurality of groups, and each drill bit assembly 3 may be disposed on the same side and/or different sides of the left and right sides of the stand 1 according to punching requirements. Thus, the core 100 is installed once, so that all punching operations of the core 100 can be realized, and the punching efficiency of the core 100 can be improved.

When the drill bit assemblies 3 are disposed on the same side of the left and right sides of the holder 1, the holders 31 of different drill bit assemblies 3 are slidably disposed on the same second rail 41, as shown in fig. 4. When the heights of the holes punched in the core 100 are the same, each drill bit assembly 3 can perform the punching operation at the same time, and the punching efficiency can be further improved.

When the drill bit assembly 3 is disposed on different sides of the left and right sides of the support 1, the second guide rail 41 and the third guide rail 12 may be disposed on the left and right sides of the support 1 at the same time, so as to guide and limit the movement of the drill bit assembly 3, and the limiting member 7 is correspondingly disposed on the left and right sides of the support 1, so as to limit the movement distance of the core mold 2, thereby controlling the punching depth of the core 100, as shown in fig. 4.

The working process of the punching device is as follows:

(1) The core mold 2 is replaced according to the type of product, and the core 100 is put into the core mold 2.

(2) The rotary holder 32 is mounted on the fixed holder 31, and the corresponding drill 33 is mounted on the rotary holder 32 according to the diameter of the core print 100.

(3) The first fixing beam 41 is slid up and down according to the height of the punching core 101 to adjust the height of the first fixing beam 41 so that the height of the drill bit 33 coincides with the height of the center of the punching core 101, and the locking assembly 6 is operated to lock the position of the first fixing beam 4.

(4) The position of the drill bit assembly 3 is adjusted by sliding the drill bit assembly 3 forward and backward according to the position of the boring core head 101 in the forward and backward direction so that the drill bit 33 is aligned with the center of the boring core head 101 in the forward and backward direction.

(5) The second fixed beam 5 is slid up and down to adjust the height of the second fixed beam 5, and the locking assembly 6 is operated to lock the position of the second fixed beam 5, thereby locking the position of the fixed seat 31.

(6) The position of the stopper 7 is adjusted according to the length of the core print 101 so that the drill 33 can be driven to a desired depth.

(7) The rotary seat 32 drives the drill bit 33 to rotate at a high speed for punching operation, and the inner core mould 2 is pushed to the direction close to the drill bit 33 in the punching process until the inner core mould 2 abuts against the limiting piece 7, so that the punching operation of the current inner core 100 is completed.

After the punching operation is completed, the core mold 2 is pushed away from the drill 33 to replace the core mold 2 and the core 100, and steps (1) to (7) are repeated to complete the punching operation of the second core 100, and so on.

The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the content of the present utility model and to implement the same, but are not intended to limit the scope of the present utility model, and all equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.

Claims

1. An inner core perforating device, its characterized in that: the drilling device comprises a bracket, a drill bit assembly and an inner core clamping fixture, wherein the drill bit assembly can be arranged on the bracket in a sliding manner along the up-down and front-back directions, the inner core clamping fixture is matched with the inner core and used for placing the inner core, the inner core clamping fixture can be arranged on the bracket in a sliding manner along the left-right directions, a punching core head is arranged on the inner core, and the drill bit assembly can move relative to the bracket to enable the drill bit assembly to be aligned with the punching core head;

2. The core drilling apparatus of claim 1, wherein: the punching device further comprises a limiting part used for limiting the left-right sliding of the inner core clamping fixture, and the limiting part can be arranged on the support in a position-adjusting manner along the sliding direction of the inner core clamping fixture.

3. The core drilling apparatus of claim 1, wherein: the support is provided with a first guide rail extending along the left-right direction, and the inner core clamping fixture is matched with the first guide rail and can be slidably arranged on the first guide rail along the length extending direction of the first guide rail.

4. A core perforating apparatus as recited in claim 3 wherein: the first guide rails are respectively arranged on the front side and the rear side of the support, the inner core clamping fixture is arranged between the first guide rails on the front side and the rear side, and the first guide rails on the two sides extend obliquely from the lower side to the outer side of the support.

5. The core drilling apparatus of claim 4, wherein: the first guide rail is inclined at an angle of 5-10 degrees relative to the vertical plane.

6. The core drilling apparatus of claim 1, wherein: the drill bit is detachably arranged on the rotary seat.

7. The core drilling apparatus of claim 1, wherein: the middle part of support is provided with the trompil that runs through the support upper and lower both ends face, the inner core mould can be followed left and right sides and slided and set up in the trompil.

8. The core drilling apparatus of claim 1, wherein: the inner core mould is provided with sand discharging holes penetrating through the upper end face and the lower end face of the inner core mould.

9. The core drilling apparatus of claim 1, wherein: the drill bit assembly is provided with a plurality of groups, and the drill bit assembly is respectively arranged on the same side and/or different sides of the left side and the right side of the bracket.

10. The core drilling apparatus of claim 1, wherein: and a gap is formed between the inner core mould and the inner core, and the gap is not more than 0.2mm.