TWM484473U - Improved chuck structure of file machine - Google Patents

Description

Improvement of chuck structure of boring machine

This creation is a kind of improvement of the chuck structure of the boring machine, especially one which makes the chuck move back and forth to be more stable and keeps no deflection.

As shown in FIG. 1 , the casing 10 is provided with a transmission seat 11 having a first gear 113 at its upper end and a rotatable linkage shaft 111 at its lower end. The lower end of the linkage shaft 111 is provided. The transmission device 1 is locked and integrated with the casing 10 by a tightening collar 112. The transmission device 1 is provided with a sleeve 2 and integrally coupled with the linkage shaft 111. A crank rotation seat 12 is provided with a second gear at a lower end thereof. 122 and the vertical shaft 121, the second gear 122 and the first gear 113 are connected with a transmission belt 13 . The vertical shaft 121 pivots the bearing 14 and is assembled to the casing 10 so that the crank rotating base 12 rotates with the vertical shaft 121 as an axis. The eccentric oscillating head 123 with the connecting rod 15 is disposed at the upper end of the crank rotating base 12, and rotates synchronously with the crank rotating base 12; a chuck 17 can be provided with a trowel 3 at one end and a fixing sleeve 16 at the other end. The fixing sleeve 16 is provided with one end of the connecting rod 15 and is screwed integrally with the collet 17; a lubricating sleeve 18 is sleeved between the casing 10 and the collet 17, and the nut 19 is screwed to the casing 10 to make the casing 10 The chuck 17 and the lubrication sleeve 18 are combined and positioned in the casing 10; by the above configuration, when the transmission device 1 rotates, the sleeve 2 drives the connection The moving shaft 111 rotates the first gear 113 at the same time, and the first gear 113 drives the second gear 122 with the belt 13 to rotate the crank rotating seat 12, so that the eccentric swinging head 123 moves in a circular motion to drive the connecting rod 15 and the clip. The head 17 is formed to reciprocate back and forth, and the boring tool 3 is driven to honing the object to be processed, and the lubricating sleeve 18 is added to ensure that the chuck 17 can smoothly move back and forth, and the lubricating sleeve 18 can be slid back and forth in the chuck 17 When reciprocating, it is standardized to maintain a linear action; however, the above structure actually has the following disadvantages:

(1) The spherical head 151 at the front end of the connecting rod 15 is coupled to the collet 17. When the boring machine is used, the deflection angle of the collet 17 often occurs, and the boring tool 3 also changes the angle, which affects the boring tool 3 Angle and depth, the user needs to operate the boring machine according to experience, and adjust the angle of the boring tool 3 at the right time, which is extremely troublesome and inconvenient.

(2) In order to provide a linear back-and-forth track with a good sliding of the chuck 17, the lubricating sleeve 18 (usually made of copper or wool felt) has a lubricating effect and avoids frictional high heat generation, and it is necessary to add supplementary lubricating oil, however, copper The lubricating sleeve 18 has a better linear effect, but is easy to generate high temperature due to a large friction area. The lubricating sleeve 18 of the wool felt is not easy to generate high heat, but cannot provide a stable track retaining effect of the chuck 17, and the chuck is caused. 17 can not maintain a stable linear back and forth movement.

The reason is that, in view of the above-mentioned many shortcomings, the creator has made detailed research and accumulated many years of experience in the development and manufacturing of hand tools related industries in order to make the boring machine chucks not deflect the angle and provide stable effects. The creation of creation.

The main purpose of this creation is to solve the above problems, and to provide a stable linear sliding of the chuck of the boring machine without causing angular deflection and difficulty in generating high heat. The main technology and purpose are as follows: the main purpose of the creation is to the casing 10 and A bushing 32 is disposed between the chucks 30. The bushing 32 is internally provided with a sliding slot 321 . The outside of the clamping head 30 is provided with a slot 301. The sliding slot 321 and the slot 301 have a rolling member 31. The rolling of the member 31 enables the chuck 30 to be reciprocally linearly reciprocated. The rolling member 31 contacts the sliding groove 321 and the groove 301 in a point shape, so as to reduce friction when the chuck 30 and the bushing 32 slide relative to each other, so as not to generate high heat. The effect.

Another object of the present invention is to provide a flange 322 at one end of the bushing 32. The flange 322 is locked by the nut 33 and fixed to the casing 10 so that the bushing 32 cannot be rotated, because the rolling member 31 It is restricted to be accommodated between the sliding groove 321 and the groove 301, so that the chuck 30 can not be rotated, thereby ensuring the effect that the chuck 30 slides linearly and reciprocally without deflection.

A further object of the present invention is to provide a pushing block 35 and an elastic member 34 between the collet 30 and the fixing sleeve 16, so that the spherical head 151 of the connecting rod 15 elastically abuts against the top pushing block 35, thereby honing the object by the boring tool 3 When there is an elastic force, it is easy to control the processing details, and the object has a more exquisite effect; when the boring tool 3 pushes forward and obstructs, the connecting rod 15 can also push the elastic member 34 to push and extend without the connecting rod. 15 can not be pushed to make the crank rotating seat 12 jam and stop rotating, to achieve the practical effect of protecting the transmission 1 component.

1‧‧‧Transmission

2‧‧‧ bushings

3‧‧‧锉

10‧‧‧Chassis

102‧‧‧ External thread

11‧‧‧ Transmission seat

112‧‧‧Forcing collar

113‧‧‧First gear

12‧‧‧Crank Rotating Seat

121‧‧‧ vertical axis

122‧‧‧second gear

123‧‧‧Swing head

13‧‧‧ drive belt

15‧‧‧ Connecting rod

151‧‧‧ spherical head

16‧‧‧fixed sleeve

161‧‧‧ External thread

17, 30‧‧‧ chucks

18‧‧‧Lubricating sleeve

19, 33‧‧‧ nuts

301‧‧‧ slots

302‧‧‧ internal thread

31‧‧‧Rolling parts

32‧‧‧ bushing

321‧‧‧ chute

322‧‧‧Flange

331‧‧‧ internal thread

34‧‧‧Flexible parts

35‧‧‧Top push block

Figure 1 is a side cross-sectional view of the prior art

Figure 2 is an exploded view of the creation

Figure 3 is a combined perspective view of the creation

Figure 4 is a side cross-sectional view of the collet retracted

Figure 5 is a side cross-sectional view of the creation of the collet

In order to make the reviewer have a better understanding of the creation, a preferred embodiment is shown in conjunction with the drawings, as detailed below: please refer to Figures 2, 3 and 4, which are provided outside the front end of the casing 10 of the boring machine. The nut 33 and the inner portion have a retractable connecting rod 15 having a spherical head 151 and sleeved with a fixing sleeve 16 having an external thread 161 and screwed by a nut 33 to have a screw The chuck 30 of the tooth 302 forms a connecting rod 15 to drive the collet 30 to reciprocate back and forth; wherein the casing 10 and the collet 30 are provided with a bushing 32, and the inner ring is provided with a sliding slot 321 , the outer portion of the collet 30 The ring groove 301 corresponds to the sliding groove 321 . The sliding groove 321 has a rolling member 31 between the groove 301 and the groove 301. One end of the bushing 32 is provided with a flange 322 which is locked and fixed by the nut 33. The sleeve 10 is prevented from rotating on the casing 10, and the rolling member 31 is restricted from being accommodated between the sliding groove 321 and the groove 301, so that the chuck 30 cannot be rotated, and the chuck 30 can be rolled by the rolling member 31. The rolling member 31 has a point-like contact with the sliding groove 321 and the groove 301 to reduce friction when the chuck 30 and the bushing 32 slide relative to each other. Achieve no effect of heat. In addition, the collet 30 is formed in a hollow shape, and an pushing block 35 and an elastic member 36 are disposed between the fixing sleeve 16 and the elastic head 36 of the connecting rod 15 to elastically abut the top pushing block 35, thereby the boring tool 3 is actuated When the obstacle is blocked, the connecting rod 15 can also be pushed forward without the buckle 15 being unable to push and extend, so that the crank rotating seat 12 is locked and stopped, thereby achieving the practical effect of protecting the transmission device 1 and reducing noise.

The composition of this creation, the details are as follows: As shown in Figures 2 to 5, the chuck 30 of the present invention is hollow and has an internal thread 302. When assembled, the chuck 30 is first threaded through the set of nuts 33, and then sequentially arranged. The elastic member 34 and the pushing block 35 are inserted into the hollow tube of the chuck 30, and then a plurality of rolling members 31 are placed in the groove 301 at the outer ring surface of the chuck 30, and the sliding groove 321 of the bushing 32 is aligned with the clip. The slots 301 of the head 30 are worn together so that the rolling member 31 is interposed between the sliding slot 321 and the slot 301 without falling, and the components are assembled into the front housing 10 and the chuck 30 is inside. Screw 302 and fixing sleeve 16 The outer thread 161 is screwed, and the flange 322 of the bushing 32 is positioned at the insertion opening. Then, the screw 331 of the nut 33 is screwed to the outer thread 102 of the casing 10, and the flange 322 of the bushing 32 is closed. The locking and locking of the casing 10 ensure that the bushing 32 is stable and not loose. The ball head 151 of the connecting rod 15 is assembled with the fixing sleeve 16 and abuts against the pushing block 35 to interlock the collet 30 and the file 3; therefore, The sliding groove 321 is firmly positioned, so that the rolling member 31 can only roll back and forth and cannot be rotated and displaced, so that the chuck 30 can be reciprocated in a straight line, thereby ensuring that the file 3 does not deflect the angle and achieve more precise processing.

In addition, the rolling element 31 of the present invention is made of a metal material, which has good rigidity and can be set to be spherical or cylindrical, and can be rolled by a point contact or a line contact between the sliding groove 321 and the groove 301. Reduce the friction area to achieve the practical effect of not generating high heat.

Referring to FIG. 4, when the connecting rod 15 is retracted backward, the spherical head 151 is assembled to the through hole of the fixing sleeve 16 to pull back the collet 30, and the plurality of rolling members 16 are linearly arranged to roll in the sliding slot 321 Between the slots 301, in addition to keeping the collet 30 undeflected, the linearly arranged plurality of rolling members 16 can also reduce the effect of the shaking of the collet 30; see Figure 5, when the connecting rod 15 is pushed forward, The spherical head 151 abuts against the pushing block 35. At the same time, the elastic member 34 is pressed to generate an elastic force. The elastic member 34 is a spring. When the elastic force of the elastic member 34 is greater than the inertial force of the chuck 30, the movable clamp is movable. The head 30 advances, so that the boring tool 3 can have a cushioning elastic force and is more compliant, which can make the object more delicate and beautiful when honing; if the boring tool 3 is hindered, the connecting rod 15 can also smoothly advance forward. The pushing block 35 is pressed to cause the elastic member 34 to change in length without causing the crank rotating seat 12 to be locked and not rotated, thereby achieving the practical effect of protecting the mechanism of the transmission device 1 and reducing noise.

As can be seen from the above, this creation has the following functions and advantages:

(1) The flange 322 of the bushing 32 is tightly locked by the nut 33 without being rotated, thereby ensuring that the collet 30 can form a linear track to slide, and the pliers 30 and the file 3 are not deflected.

(2) The rolling member 31 is in point contact or line contact rolling with the groove 301 and the sliding groove 321 , and is not rubbed back and forth by surface contact, thereby reducing the friction area and not generating high heat.

(3) The connecting rod 15 abuts against the pushing block 35 and the elastic member 34, so that the connecting rod 15 has a cushioning elastic force when being pushed out, thereby achieving the effects of protecting the mechanism, reducing noise, and making the object more compliant and beautiful.

However, the above-mentioned ones are only preferred embodiments of the present invention, and are not intended to limit the features of the present creation. The re-creation of the technical means and creation principles related to the creation is still the creative equivalent of the creation. .

In summary, the structure of this creation does have excellent practicality and enhanced efficiency. It is in line with the provisions of the Patent Law, and it is submitted in accordance with the law.

10‧‧‧Chassis

102‧‧‧ External thread

11‧‧‧ Transmission seat

112‧‧‧Forcing collar

113‧‧‧First gear

12‧‧‧Crank Rotating Seat

122‧‧‧second gear

123‧‧‧Swing head

13‧‧‧ drive belt

15‧‧‧ Connecting rod

151‧‧‧ spherical head

16‧‧‧fixed sleeve

161‧‧‧ External thread

30‧‧‧ chuck

301‧‧‧ slots

302‧‧‧ internal thread

31‧‧‧Rolling parts

32‧‧‧ bushing

321‧‧‧ chute

322‧‧‧Flange

33‧‧‧ nuts

331‧‧‧ internal thread

34‧‧‧Flexible parts

35‧‧‧Top push block

Claims (5)

The utility model relates to an improvement of a chuck structure of a boring machine, wherein a nut is arranged outside the front end of the casing of the boring machine and a retractable connecting rod is arranged inside, the connecting rod has a spherical head and is sleeved with a fixing sleeve, and the fixing sleeve has an external thread And screwing a chuck with an internal thread to form a connecting rod to drive the collet to reciprocate back and forth; characterized in that: a bushing is arranged between the casing and the collet, and the inner ring of the bushing is provided with a slip a groove, the outer ring of the chuck is provided with a groove corresponding to the sliding groove, and the rolling groove has a rolling member between the groove; and the rolling of the rolling member enables the clamping head to stably reciprocate linearly. The chuck structure of the boring machine according to claim 1, wherein the front end of the bushing is provided with a flange which is locked by a nut and fixed to the casing. The chuck structure of the boring machine according to claim 1 is improved, wherein the chuck is provided in a hollow shape, and an pushing block and an elastic member are arranged between the fixing sleeve and the elastic head of the connecting rod. Top push block. The chuck structure of the rake machine according to claim 1, wherein the rolling member is a sphere or a cylinder. The chuck structure of the boring machine according to claim 1 is improved, wherein the elastic member is a spring.