CN217452988U - Device for machining positioning hole on machine and machining system - Google Patents

Abstract

The utility model discloses a device and system of processing for at processing locating hole belongs to machining technical field, and it includes that corresponding key seat, elastic component and the round pin body that sets up on the anchor clamps bottom plate top surface utilize the key seat to go up ladder through-hole and the spacing bellied corresponding setting of round pin body tip, can guarantee that the tip of round pin body stretches out the key seat all the time when the round pin body does not receive axial force to can compress the elastic component and break away from the locating hole when the round pin body receives the axial butt effect. The utility model discloses a device for at processing locating hole, its simple structure sets up portably, can effectively simplify the product to the positioning process of locating hole in the machine location course of working, satisfies the location demand in the course of working of each position of product, guarantees the quality and the efficiency of processing, simplifies the anchor clamps structure that the product adds man-hour, satisfies the application demand under the different conditions, has better practical value and application prospect.

Description

Device for machining positioning hole on machine and machining system

Technical Field

The utility model belongs to the technical field of machining, concretely relates to a device and system of processing for at processing locating hole.

Background

In the field of machining, when a component is machined, a reference hole is often required to be machined. At present, aiming at the processing of a reference hole, the conventional method is to firstly adopt a blank hole core-pulling hole for positioning, process two fine positioning holes, then use the processed fine positioning holes for positioning at another station, and process a blank hole for positioning in reverse.

Although the above-described machining method can meet the machining requirements of the reference hole to a certain extent, the number of machining processes is large, the overall machining efficiency is low, and the machining cycle is increased and the machining cost is increased.

In order to solve the above problems, it is a common practice in the industry to design an active pin pulling structure as shown in fig. 3, when other parts are machined, the hole for positioning is continuously in a positioning state, when the positioning hole needs to be machined, the positioning pin is withdrawn, and after machining, the positioning pin is extended out for positioning again. The scheme generally needs to install an oil cylinder (or an air cylinder) on the back of a clamp bottom plate by adopting a fixed seat, install a conical spring pin assembly on the front of the clamp bottom plate by adopting a pin seat, drill a through hole on the clamp bottom plate, and connect an ejector rod of the oil cylinder (or the air cylinder) with a pin body through a connecting rod through the through hole. When the pin body is used for positioning, the top rod of the oil cylinder (or the air cylinder) is at an extending position; when a positioning hole needs to be machined, the oil cylinder (or air cylinder) ejector rod retracts to drive the pin body to retract, the pin body retracts from the positioning hole at the moment, the cutter descends to enter the hole to be machined, after machining is finished, the oil cylinder (or air cylinder) acts, the ejector rod extends out, and the conical spring pin enters the machined positioning hole to be positioned.

Obviously, even though the above scheme can simplify the process of locating hole processing to a certain extent, its technical scheme is comparatively complicated on the whole, the requirement to control accuracy is extremely high, has very big setting and application limitation.

SUMMERY OF THE UTILITY MODEL

To the above defect of prior art or improve in the demand one or more, the utility model provides a device and system of processing for at the processing locating hole can simplify locating hole positioner's structure by a wide margin, simplifies the setting of device and supporting facility.

In order to achieve the above objects, one aspect of the present invention provides an apparatus for machining a positioning hole, including a pin seat disposed on a top surface of a bottom plate of a jig;

a through hole with the axis vertical to the top surface of the clamp bottom plate is formed in the middle of the pin seat, and a pin body and an elastic piece are coaxially arranged in the through hole; the through hole is a stepped hole, the inner diameter of one end, close to the clamp bottom plate, of the through hole is larger than that of the other end of the through hole, and an annular step is formed in the through hole;

the pin body is coaxially embedded in the through hole, one end of the pin body extends out of the through hole to be used for embedding and positioning a positioning hole in a product to be processed, and a limiting bulge for abutting and limiting at the annular step is formed at the other end of the pin body; the two ends of the elastic piece are respectively abutted against the end part of the pin body and the top surface of the clamp bottom plate and used for tightly abutting the limiting bulge at the annular step when the pin body is not subjected to axial acting force and axially compressing the pin body when the pin body is subjected to the axial acting force.

As a further improvement, the top surface of the clamp bottom plate corresponds the blind hole has been seted up to the elastic member, be used for the elastic member deviates from the position of establishing of inlaying of round pin body one end.

As a further improvement of the utility model, the elastic member is a spring.

As a further improvement of the utility model, the pin body extends out the tip of the pin seat is a round head or a flat head with a round corner arranged at the periphery.

As a further improvement of the utility model, the pin body extends out of the periphery of the pin seat and is arranged into an arc or a conical structure.

As a further improvement of the utility model, the key seat deviates from the one end of anchor clamps bottom plate is toper or frustum structure.

As a further improvement of the present invention, the pin seat is connected to the clamp bottom plate through a plurality of connecting members.

In another aspect of the present invention, a processing system for processing a positioning hole on a machine tool is provided; the device comprises the device for machining the positioning hole;

the positioning device also comprises a processing cutter for processing the positioning hole;

the processing tool comprises a handle part and a cutting part which are coaxially arranged, and a tool ejection part is arranged at one end of the cutting part, which is far away from the handle part, and is used for ejecting the pin body from the positioning hole by the tool ejection part when the processing tool processes the positioning hole.

The above-described improved technical features may be combined with each other as long as they do not conflict with each other.

Generally, through the utility model above technical scheme who conceives compares with prior art, the beneficial effect who has includes:

(1) the utility model discloses a device for processing locating hole on machine, it includes the key seat, elastic component and the round pin body that correspond to set up on the anchor clamps bottom plate top surface, utilizes the corresponding setting of ladder through-hole and the spacing arch of round pin body tip on the key seat, can guarantee that the tip of round pin body stretches out the key seat all the time when the round pin body does not receive axial force effect to can compress the elastic component and break away from the locating hole when the round pin body receives axial butt effect; the matching arrangement of the device is utilized, not only can the positioning before the positioning hole is processed be realized, but also the passive avoidance during processing can be realized, an additional driving mechanism is not required to be independently arranged, the structural form of the device is simplified, and the application under different setting conditions is met.

(2) The utility model discloses a device for at machining locating hole, it sets up the blind hole, sets up the tip of the round pin body into the button head, sets up the top of key seat into toper or frustum shape through corresponding the elastic component on the anchor clamps bottom plate, can realize fast that the round pin body produces the interference with other positions of product in the locating process to the location of locating hole, guarantees the location accuracy in the product course of working.

(3) The utility model discloses a system of processing for at processing locating hole, it passes through locating hole positioner and processing cutter's correspondence setting for the ejecting portion of its tip can be continuously with the ejecting locating hole of round pin body when processing cutter processing locating hole, when guaranteeing locating hole processing accuracy, has reduced the initiative drive part to round pin body setting, has simplified the initiative drive process to the round pin body among the processing locating hole process, has promoted the efficiency and the precision of locating hole processing.

(4) The utility model discloses a device for at processing locating hole, its simple structure sets up portably, can effectively simplify the product and to the positioning process of locating hole in the location course of working, satisfies the location demand in the course of working of each position of product, guarantees the quality and the efficiency of processing, simplifies the fixture structure that the product adds man-hour, satisfies the application demand under the different conditions, has better practical value and application prospect.

Drawings

Fig. 1 is a schematic structural diagram of an apparatus for machining a positioning hole according to an embodiment of the present invention;

fig. 2 is a schematic view of a tool structure of an apparatus for machining a positioning hole according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a prior art apparatus for machining pilot holes;

in all the figures, the same reference numerals denote the same features, in particular:

1. a drive mechanism; 2. a fixed seat; 3. a clamp base plate; 4. a connecting rod; 5. a spring; 6. a mounting seat; 7. a pin body; 8. a pin boss; 9. processing a cutter; 901. a cutter ejection part; 902. a cutting edge; 903. a handle; 10. an elastic member.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Example (b):

for the prior art solution as shown in fig. 3, it is an active pin pulling structure, and includes a driving mechanism 1 correspondingly disposed on a bottom plate 3 of a clamp, a fixed seat 2, a connecting rod 4, a spring 5, a mounting seat 6, and a pin body 7. When the cutter processes other parts, the driving mechanism 1 (such as an oil cylinder or an air cylinder) controls the connecting rod 4 to be at the extending position, and at the moment, the positioning hole is continuously positioned by the pin body 7; when a positioning hole needs to be machined, the driving mechanism 1 controls the connecting rod 4 to retract, the pin body 7 is driven to retract, the pin body 7 retracts from the positioning hole at the moment, the machining tool 9 descends and machines in the hole, after machining is completed, the driving mechanism 1 moves, the connecting rod 4 extends out, and the pin body 7 enters the machined positioning hole for positioning.

In contrast, in the preferred embodiment, the apparatus for machining the pilot hole is shown in fig. 1, and includes a pin seat 8 disposed on the top surface of the jig base plate 3 in a mating manner, and a pin body 7 and a resilient member 10 disposed in the pin seat 8.

Specifically, the pin seat 8 in the preferred embodiment is fixedly attached to the top surface of the clamp base plate 3, which is the side of the clamp base plate facing the product to be machined. In a preferred embodiment, the connection of the pin bosses 8 to the clamp base plate 3 is achieved by a plurality of connections, such as bolted connections, screwed connections, etc.

Meanwhile, a through hole is formed in the middle of the pin base 8 and is used for coaxially arranging a combined structure of the pin body 7 and the elastic piece 10, the pin base 8 is connected with the clamp bottom plate 3 enough, the axis of the through hole is perpendicular to the top surface of the clamp bottom plate 3, and the pin body 7 extends in the axial direction along the vertical direction after being correspondingly arranged on the clamp bottom plate 3.

Further, the pin seat 8 in the preferred embodiment is a stepped hole, the inner diameter of which at one end close to the clamp bottom plate 3 is larger than that of the other end, and an annular step structure is formed inside; correspondingly, one end of the pin body 7 is provided with an annular limiting bulge, so that the pin body 7 can extend out of the pin seat 8 from one end after penetrating through the through hole and is limited at the annular step by the annular bulge at the other end, and the problem that the end of the pin body 7 extends out too long to influence the normal work of the machining tool 9 is avoided.

In more detail, the elastic member 10 in the preferred embodiment is disposed in the through hole, and one end of the elastic member abuts against the end of the pin body 7, and the other end abuts against the top surface of the clamp base plate 3, and can be compressed axially along the through hole when the pin body 7 is subjected to an axial force, so that the end of the pin body 7 matching with the positioning hole can be retracted into the pin seat 8, thereby avoiding the interference of the pin body 7 with the positioning hole when the machining tool 9 machines the positioning hole.

Preferably, the resilient member 10 is preferably a spring as shown in fig. 1, which is arranged coaxially with the pin body 7. In order to realize the positioning of one end of the spring, in a preferred embodiment, a blind hole is formed at the top of the clamp bottom plate 3, so that one end of the spring, which is far away from the pin body 7, can be embedded in the blind hole for positioning. Of course, besides the above-mentioned spring, the elastic member in the preferred embodiment may be provided in other forms, such as a rubber elastic member or other elastic structures capable of realizing compression deformation and recovery.

Further preferably, the end of the pin body 7 extending out of the pin seat 8 is a relatively flat round head or a flat head with a round corner at the periphery, so that the pin is pressed when the cutter descends in the machining process. Meanwhile, the end part of the pin body 7 in the preferred embodiment is provided with an arc-shaped or conical structure, so that the quick positioning of the end part of the pin body 7 and the product positioning hole is facilitated.

Furthermore, as shown in fig. 1, it is easy to see that the end of the pin base 8 facing away from the clamp base plate 3 is provided with a conical or frustum structure for reducing the interference of the pin base 8 with the bottom of the product to be processed.

In another aspect of the present invention, there is also provided a processing system for machining positioning hole device based on the above, which includes a processing device in addition to the above device, and the processing tool 9 of the processing device is as shown in fig. 2.

Wherein the machining tool 9 comprises a cutting portion and an ejector portion, the cutting portion being the same as a conventional cutting tool, such as a cutting edge 902 shown in fig. 2; accordingly, a tool ejector 901 is provided at the end of the cutting portion facing away from the shank 903, and has an outer diameter smaller than that of the cutting edge 902, and is further preferably a round head, a flat head, or a cylindrical structure with rounded corners at the outer periphery of the end portion, for aligning and pressing down the pin body 7 when machining a pilot hole.

In actual use, the elastic member 10 is in a semi-compression state when the pin body 7 is used for positioning, and the pin body 7 is used for positioning in an unprocessed positioning hole; when the positioning hole needs to be machined, the machining tool 9 descends and extends into the positioning hole, the tool ejection part 901 presses the top of the pin body 7, the pin body 7 descends synchronously along with the descending of the machining tool 9 during cutting, the machining tool 9 ascends and retreats when machining is completed, the pin body 7 ascends together with the machining tool 9 under the action of the elastic piece 10, and when the machining tool 9 exits from the positioning hole, the pin body 7 also returns to the machined positioning hole synchronously for re-positioning.

The utility model provides a device for at processing locating hole, its simple structure sets up portably, can effectively simplify the product to the positioning process of locating hole in the machine location course of working, satisfies the location demand in the course of working of each position of product, guarantees the quality and the efficiency of processing, simplifies the anchor clamps structure that the product adds man-hour, satisfies the application demand under the different conditions, has better practical value and application prospect.

It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

Claims (8)

1. A device for machining positioning holes is characterized in that,

comprises a pin seat arranged on the top surface of a bottom plate of the clamp;

a through hole with the axis vertical to the top surface of the clamp bottom plate is formed in the middle of the pin seat, and a pin body and an elastic piece are coaxially arranged in the through hole; the through hole is a stepped hole, the inner diameter of one end, close to the clamp bottom plate, of the through hole is larger than that of the other end of the through hole, and an annular step is formed in the through hole;

the pin body is coaxially embedded in the through hole, one end of the pin body extends out of the through hole to be used for embedding and positioning a positioning hole in a product to be processed, and a limiting bulge for abutting and limiting at the annular step is formed at the other end of the pin body; the two ends of the elastic piece are respectively abutted against the end part of the pin body and the top surface of the clamp bottom plate and used for tightly abutting the limiting bulge at the annular step when the pin body is not subjected to axial acting force and axially compressing the pin body when the pin body is subjected to the axial acting force.

2. The device for machining the positioning hole as claimed in claim 1, wherein a blind hole is formed in the top surface of the bottom plate of the clamp corresponding to the elastic member for positioning the elastic member away from the end of the pin body.

3. The apparatus for machining a locating hole as defined in claim 1 or 2, wherein the resilient member is a spring.

4. The apparatus of claim 1, wherein the end of the pin body extending out of the pin base is round or flat with round corners at the periphery.

5. The apparatus for machining a locating hole as defined in claim 4, wherein the periphery of the pin body extending out of the pin base is provided with an arc or a conical structure.

6. An apparatus for machining locating holes as defined in claim 1, 2, 4 or 5, wherein the end of the pin base facing away from the base plate of the jig is of a tapered or frustoconical configuration.

7. The apparatus for machining locating holes in accordance with claim 1, 2, 4 or 5, wherein the pin base is connected to the jig base plate by a plurality of connecting members.

8. A machining system for machining a locating hole on a machine; the device is characterized by comprising the device for machining the positioning hole in any one of claims 1 to 7;

the positioning hole machining tool is used for machining the positioning hole;

the processing tool comprises a handle part and a cutting part which are coaxially arranged, and a tool ejection part is arranged at one end of the cutting part, which is far away from the handle part, and is used for ejecting the pin body from the positioning hole by the tool ejection part when the processing tool processes the positioning hole.

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