CN211249614U

CN211249614U - Elastic deburring cutter handle for castings

Info

Publication number: CN211249614U
Application number: CN201922328421.8U
Authority: CN
Inventors: 李宝义
Original assignee: Milling Shanghai Cutting Technology Co ltd
Current assignee: Milling Shanghai Cutting Technology Co ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-08-14
Anticipated expiration: 2029-12-23

Abstract

The utility model provides a foundry goods elasticity burring handle of a knife, including handle of a knife body, spring, leading round pin and dabber, the handle of a knife body includes anterior segment and back end, is equipped with the holding chamber in the anterior segment, is equipped with the tube hole in the back end, and in the tube hole was located to the spring, this internal solid fixed ring of dabber that still is equipped with of handle of a knife, the solid fixed ring of dabber is equipped with the guide hole in the guide section and locates the section of placing of holding intracavity including the guide section that stretches into in the tube hole, leads the round pin and locates in the guide hole, the spring front end cup joint in on leading the round pin, be equipped with the slip chamber in placing the section, be equipped with the axial bead along circumference on the inner wall in slip chamber, the dabber includes the center pin and locates the gear of center pin one end, gear face and the. By adopting the structure, when polishing, the cutter arranged on the central shaft can automatically retract when the part is higher than the cutter, and automatically extends out when the part is lower, so that the effect of automatically removing the burrs of the part is realized.

Description

Elastic deburring cutter handle for castings

Technical Field

The utility model relates to a cutter field, concretely relates to foundry goods elasticity burring handle of a knife.

Background

The theoretical metal liquid state forming of casting shaping is often called as casting, the history of the casting shaping technology is long, the application field is wide, burrs are often generated in the casting finish machining process, the burrs need to be removed after machining is completed, the contour size of the casting is difficult to accurately control, the height of the edge of a part is high, automatic programming deburring cannot be realized, burrs are often removed by adopting a manual scraper, the labor cost is high, the efficiency is low, the consistency of the size of a deburring surface is poor, and the attractiveness is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a novel foundry goods elasticity burring handle of a knife is provided establishes elastic construction in, makes the cutter stretch out in the part is low is automatic, exceeds automatic withdrawal at the part, realizes the effect of automatic removal part burr.

The utility model discloses a this technical problem is solved to following mode: the utility model provides a foundry goods elasticity burring handle of a knife, includes handle of a knife body, spring, leads positive round pin and dabber, its characterized in that: the improved screwdriver handle comprises a screwdriver handle body and is characterized in that the screwdriver handle body comprises a front section and a rear section, a containing cavity is formed in the front section, a tube hole is formed in the rear section, a spring is arranged in the tube hole, a mandrel fixing ring capable of rotating along with the screwdriver handle body is further arranged in the screwdriver handle body, the mandrel fixing ring comprises a guide section extending into the tube hole and a placing section arranged in the containing cavity, a guide hole is formed in the guide section, a guide pin is arranged in the guide hole, the front end of the spring is sleeved on the guide pin, a sliding cavity is formed in the placing section, an axial convex edge is arranged on the inner wall of the sliding cavity along the circumferential direction, the mandrel comprises a central shaft and a gear arranged at one end of the central shaft, the gear surface of the gear is meshed with the axial convex edge, the rear end surface of the gear abuts against the guide.

During the use, at dabber head installation cutter, dabber, the solid fixed ring of dabber rotate along with handle of a knife body together, polish the foundry goods, through the elastic construction who establishes in the handle of a knife body, make the cutter can stretch out automatically in the part low, and the automatic withdrawal is gone out to the part height, realizes the effect of automatic removal part burr.

As an embodiment of the utility model, be equipped with the through-hole in intercommunication holding chamber on the handle of a knife body outer wall, be equipped with the locating hole on the outer wall of section of placing, the handle of a knife body with the solid fixed ring of dabber is through passing the through-hole inserts bolt fastening in the locating hole. Therefore, the knife handle body and the mandrel fixing ring are fixed.

As a preferred embodiment of the present invention, the inner wall of the tube hole has a thread, and the adjusting screw is screwed into the tube hole from the rear end of the tube hole and abuts against the spring. By adopting the structure, the tightness of the spring can be controlled by adjusting the screwing depth of the adjusting screw, so that the stroke of the mandrel is controlled, and the mandrel is suitable for castings with different surface roughness.

As a preferred embodiment of the utility model, the anterior segment is uncovered with the preceding terminal surface of placing the section, install sealed lid on the uncovered terminal surface of anterior segment, sealed covering is equipped with the shaft hole, the center pin is followed stretch out in the shaft hole.

As a preferred embodiment of the utility model, be equipped with the ladder groove of arranging around the shaft hole on the rear end face of sealed lid, the ladder inslot is equipped with the bearing housing, be equipped with the circumference recess on the center pin, be equipped with slide bearing in the circumference recess. The outer end face of the sliding bearing is abutted against the inner wall of the bearing sleeve. By adopting the structure, the sliding of the mandrel is smoother, the shaking of the mandrel is reduced, and the processing precision is improved.

As a preferred embodiment of the present invention, a gasket is disposed on the rear end surface of the bearing housing. The existence of this gasket can play the effect of buffering, avoids leading to structural damage because of dabber and bearing housing take place the rigidity collision.

More than synthesizing, the utility model has the advantages of simple structure, the installation is swift simple and convenient, the commonality can be good, need not change current production facility and production line, can perfectly replace artifical burring, reduces the production cost of labor, improves production efficiency.

Drawings

The present invention will be further explained with reference to the following drawings:

fig. 1 is a side sectional view of the present invention;

FIG. 2 is an exploded view of the present invention;

wherein: 100-adjusting screw, 101-spring, 102-guide pin, 200-handle body, 201-front section, 202-rear section, 203-pipe hole, 204-accommodating cavity, 205-through hole, 300-mandrel fixing ring, 301-guide section, 302-placing section, 303-guide hole, 304-sliding cavity, 305-axial convex ridge, 306-positioning hole, 307-bolt, 400-mandrel, 401-central shaft, 402-gear, 403-circumferential groove, 404-sliding bearing, 500-sealing cover, 501-shaft hole, 502-stepped groove, 503-bearing sleeve and 504-gasket.

Detailed Description

The invention is further illustrated below by means of specific examples:

as shown in fig. 1 and 2, the elastic deburring tool holder for castings comprises an adjusting screw 100, a spring 101, a guide pin 102, a tool holder body 200, a mandrel fixing ring 300, a mandrel 400, a gasket 504, a bearing sleeve 503, a sliding bearing 404 and a sealing cover 500.

The tool holder body 200 includes a front section 201 and a rear section 202 connected in sequence from front to back, the front section 201 and the rear section 202 are both cylindrical, and the diameter of the front section 201 is greater than that of the rear section 202. The rear section 202 has a tube hole 203 therein, the front section 201 has a cylindrical open receiving cavity 204 therein, and the tube hole 203 and the receiving cavity 204 are communicated with each other. The outer wall of the tool holder body 200 is further provided with a through hole 205 communicated with the accommodating cavity 204.

The mandrel fixing ring 300 is disposed in the accommodating cavity 204 and is composed of a cylindrical guiding section 301 and a placing section 302. The guide section 301 has a guide hole 303 therein. The placing section 302 is provided with an open sliding cavity 304 communicated with the guide hole, and the inner wall of the sliding cavity 304 is circumferentially provided with a plurality of axial ribs 305. The outer end face of the placing section 302 is also provided with a positioning hole 306.

The guiding section 301 extends into the tube hole 203, and the placing section 302 is disposed in the accommodating cavity 204 and is matched and abutted against the inner wall of the accommodating cavity 204. The mandrel fixing ring 300 and the tool holder body 200 are fixed to each other by bolts 307 which sequentially pass through the through holes 205 and the positioning holes 306. So that the spindle fixing ring 300 can rotate together with the shank body 200.

The inner wall of the pipe hole 203 is provided with a thread, the adjusting screw 100 is screwed into the pipe hole 203 from the rear end of the pipe hole 203 through the thread, the spring 101 is arranged in the pipe hole 203, the rear end of the spring is abutted against the adjusting screw 100, the front end of the spring is sleeved on the pilot pin 102, and the pilot pin 102 extends into the pilot hole 303 and can slide in the pilot hole.

The mandrel comprises a central shaft 401 and a gear 402 connected with one end of the central shaft 401, the mandrel 400 is arranged in the sliding cavity 304, the rear end face of the gear 402 is abutted against the guide pin 102, and the gear face is meshed with the axial convex rib 305.

The sealing cover 500 is installed on the open end face of the front section 202 of the tool shank body 200, a shaft hole 501 is formed in the sealing cover 500, and a stepped groove 502 arranged around the shaft hole 501 is formed in the rear end face of the sealing cover 500. A bearing sleeve 503 is disposed in the stepped groove 502, and a spacer 504 is attached to a rear end surface of the bearing sleeve 503.

The central shaft 401 of the mandrel 400 extends out of the shaft hole 501 of the sealing cover 500, the central shaft 401 is provided with a circumferential groove 403, the sliding bearing 404 is embedded in the circumferential groove 403, and the outer end surface of the sliding bearing 404 is abutted against the inner wall of the bearing sleeve 503. By adopting the structure, the sliding of the mandrel 400 is smoother, the shaking of the mandrel 400 is reduced, and the processing precision is improved. The existence of the spacer 504 can play a role of buffering, and damage caused by rigid collision of the mandrel 400 and the bearing sleeve 503 is avoided.

More exactly the utility model discloses an overall structure during the use, at dabber 400 head installation cutter, dabber 400, the solid fixed ring 300 of dabber rotate along with handle of a knife body 200 together, and the cutter of relieving the tool is polished the foundry goods, through the elastic construction who establishes in handle of a knife body 200, makes the cutter can stretch out in the part low is automatic, exceeds automatic withdrawal at the part, realizes the effect of automatic removal part burr.

In addition, the utility model can also match the castings with different surface roughness by adjusting the screwing-in depth of the adjusting screw 100, the larger the screwing-in depth of the adjusting screw 100 is, the tighter the elasticity of the spring 101 is, the shorter the stroke range for realizing deburring is, and the casting with smaller surface roughness is suitable; the larger the screwing-in depth of the adjusting screw is, the looser the spring 101 is, and the wider the stroke range for realizing deburring is; the method is suitable for castings with large surface roughness. Thereby improving the general-purpose performance and optimizing the deburring effect.

However, those skilled in the art should realize that the above embodiments are only for illustrative purposes and are not to be used as limitations of the present invention, and that changes and modifications to the above embodiments are intended to fall within the scope of the appended claims, as long as they fall within the true spirit of the present invention.

Claims

1. The utility model provides a foundry goods elasticity burring handle of a knife, includes handle of a knife body (200), spring (101), leads positive round pin (102) and dabber (400), its characterized in that: the knife handle comprises a knife handle body (200) and a knife handle body, wherein the knife handle body (200) comprises a front section (201) and a rear section (202), an accommodating cavity (204) is formed in the front section (201), a tube hole (203) is formed in the rear section (202), a spring (101) is arranged in the tube hole (203), a mandrel fixing ring (300) capable of rotating along with the knife handle body (200) is further arranged in the knife handle body (200), the mandrel fixing ring (300) comprises a guide section (301) extending into the tube hole (203) and a placing section (302) arranged in the accommodating cavity (204), a guide hole (303) is formed in the guide section (301), a guide pin (102) is arranged in the guide hole (303), the front end of the spring (101) is sleeved on the guide pin (102), a sliding cavity (304) is formed in the placing section (302), and an axial convex rib (305) is formed in the inner wall of the sliding cavity (304) along the circumferential direction, the mandrel (400) comprises a central shaft (401) and a gear (402) arranged at one end of the central shaft (401), the gear surface of the gear (402) is meshed with the axial rib (305), the rear end surface of the gear (402) is abutted against the guide pin (102), and the central shaft (401) extends out of the tool holder body (200).

2. The casting elastic deburring tool shank of claim 1, characterized in that: the outer wall of the knife handle body (200) is provided with a through hole (205) communicated with the accommodating cavity (204), the outer wall of the placing section (302) is provided with a positioning hole (306), and the knife handle body (200) and the mandrel (400) fixing ring are fixed through a bolt (307) penetrating through the through hole (205) and inserted into the positioning hole (306).

3. The casting elastic deburring tool shank of claim 1, characterized in that: the inner wall of the pipe hole (203) is provided with threads, and the adjusting screw (100) is screwed into the pipe hole (203) from the rear end of the pipe hole (203) through the threads and is abutted against the spring (101).

4. The casting elastic deburring tool shank of claim 1, characterized in that: anterior segment (201) and the preceding terminal surface of placing section (302) are uncovered, install sealed lid (500) on the uncovered terminal surface of anterior segment (201), be equipped with shaft hole (501) on sealed lid (500), center pin (401) are followed stretch out in shaft hole (501).

5. The casting elastic deburring tool shank of claim 4, characterized in that: be equipped with on the rear end face of sealed lid (500) around ladder groove (502) that shaft hole (501) were arranged, be equipped with bearing housing (503) in ladder groove (502), be equipped with circumference recess (403) on center pin (401), be equipped with slide bearing (404) in circumference recess (403), the outer terminal surface of slide bearing (404) with the inner wall of bearing housing (503) offsets.

6. The casting elastic deburring tool shank of claim 5, characterized in that: and a gasket (504) is arranged on the rear end face of the bearing sleeve (503).