CN214602085U

CN214602085U - Drilling machine

Info

Publication number: CN214602085U
Application number: CN202120864489.2U
Authority: CN
Inventors: 杨志达
Original assignee: Xiamen Yongchengxin Mechanical Products Co ltd
Current assignee: Xiamen Yongchengxin Mechanical Products Co ltd
Priority date: 2021-04-25
Filing date: 2021-04-25
Publication date: 2021-11-05
Anticipated expiration: 2031-04-25

Abstract

The application discloses a drilling machine, which relates to the technical field of drilling machines and solves the problem of reduced machining precision of workpieces; the bottom of the three-jaw chuck is fixedly connected with a mounting plate; the four corners of the base are provided with through holes, and the four corners of the mounting plate are provided with locking bolts and fastening plates; the diameter of the locking bolt is smaller than that of the through hole, and the diameter of the bolt head of the locking bolt is larger than that of the through hole; the locking bolt penetrates through the through hole and the mounting plate and is in threaded connection with the fastening plate; the base is provided with the abutting blocks at intervals on the peripheral side of the mounting plate and a driving piece for driving the abutting blocks to move towards the central axis of the three-jaw chuck. The application can improve the machining precision of the workpiece.

Description

Drilling machine

Technical Field

The application relates to the technical field of drilling machines, in particular to a drilling machine.

Background

The drilling machine is a universal machine tool with wide application, and can perform machining operations such as drilling, reaming and the like on parts.

Referring to fig. 3, a drill press includes a bed 1, a drill 2 mounted on the bed 1, a three-jaw chuck 3 located below the drill 2 for holding a workpiece, and a base 4 for fixing the three-jaw chuck 3. The bottom of the three-jaw chuck 3 is fixedly connected with a mounting plate 5. Four edges of the mounting plate 5 pass through the mounting plate and the base through bolts and are connected with nuts, and the mounting plate 5 is fixed on the base 4. The workpiece is clamped and fixed on the three-jaw chuck 3, and then the workpiece can be processed through the drill bit 2.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the three-jaw chuck is installed, after the central axis of the three-jaw chuck is aligned to the central axis of the drill bit, the mounting plate is easy to shift through the bolt and nut fixing process, namely, the central axis of the three-jaw chuck and the central axis of the drill bit shift, and the precision of a processed workpiece is reduced.

SUMMERY OF THE UTILITY MODEL

In order to improve the machining precision of work piece, this application provides a drilling machine.

The application provides a drilling machine adopts following technical scheme:

a drilling machine comprises a bed body, a drill bit arranged on the bed body, a three-jaw chuck arranged on the bed body and used for clamping a workpiece, and a base for fixing the three-jaw chuck; the bottom of the three-jaw chuck is fixedly connected with a mounting plate; the four corners of the base are provided with through holes, and the four corners of the mounting plate are provided with locking bolts and fastening plates; the diameter of the locking bolt is smaller than that of the through hole, and the diameter of the bolt head of the locking bolt is larger than that of the through hole; the locking bolt penetrates through the through hole and the mounting plate and is in threaded connection with the fastening plate; the base is provided with the piece that supports in the week side interval of mounting panel to and the driving piece of the motion of drive support piece towards three-jaw chuck axis.

By adopting the technical scheme, when the mounting plate is fixed, the mounting plate is moved to the position that the central axis of the three-jaw chuck is aligned with the central axis of the drill bit, and then the abutting block is abutted against the peripheral side of the mounting plate through the driving piece, so that the mounting plate is positioned and fixed; then, after passing through the through hole and the mounting plate, the locking bolt is in threaded connection with the fastening plate to fix the mounting plate; therefore, the possibility of deviation of the mounting plate during mounting can be effectively reduced, and the processing quality of the workpiece is improved.

Optionally, the driving part comprises a threaded seat and a screw rod, the threaded seat is arranged on the base, the screw rod is horizontally connected to the threaded seat in a threaded manner, and one end, close to the mounting plate, of the screw rod is rotatably connected with the abutting block.

Through adopting above-mentioned technical scheme, drive screw rotates, can make to support tight piece and support tightly on the lateral wall of mounting panel.

Optionally, one end of the screw rod, which is far away from the abutting block, is provided with a rotating disc.

By adopting the technical scheme, the screw rod can be conveniently driven to rotate by hands through the arrangement of the rotating disc.

Optionally, guide grooves are formed in the base in a one-to-one correspondence to the abutting blocks, the length direction of each guide groove is the same as the axial direction of the corresponding screw, and the bottoms of the abutting blocks slide in the guide grooves.

Through adopting above-mentioned technical scheme, because the screw rod rotates for a long time and uses the back, the screw rod probably takes place wearing and tearing with the screw thread on the screw thread seat, through the setting of guide way, can reduce the screw rod and rotate the in-process, its axis takes place the inclined possibility for the axis of three-jaw chuck.

Optionally, the width of the notch of the guide groove is smaller than the width of the groove bottom, and the bottoms of the abutting blocks are attached to the groove wall of the guide groove in a sliding mode.

Through adopting above-mentioned technical scheme, the notch width of guide way is less than the tank bottom width for the piece that supports can not take place the skew in vertical, and then keeps the screw rod to rotate the in-process, and the screw rod is in the horizontality all the time.

Optionally, a round hole is formed in the center of the base, and one end of the guide groove is communicated with the round hole.

Through adopting above-mentioned technical scheme, the setting of round hole is convenient for with the bottom slidable mounting to the guide way in of the tight piece that supports.

Optionally, the abutting block is rotatably connected with the screw rod through a bearing.

Through adopting above-mentioned technical scheme, the tip of screw rod passes through the bearing and is connected with supporting tight piece for the screw rod is driving smoothly and is supporting tight piece and moving along its axial.

Optionally, the fastening plate is placed on the upper end face of the mounting plate, and the locking bolt penetrates through the through hole from bottom to top and then is in threaded connection with the fastening plate.

By adopting the technical scheme, the fastening plate is placed on the upper end surface of the mounting plate, so that the locking bolt can conveniently penetrate through the through hole and the mounting plate from bottom to top and then is in threaded connection with the fastening plate; if the mounting plate is located the base lower extreme face, then when locking the mounting plate, still need additionally hold the mounting plate, lock fixedly again.

In summary, the present application includes at least one of the following benefits:

1. when the mounting plate is fixed, the mounting plate is moved to the position that the central axis of the three-jaw chuck is aligned with the central axis of the drill bit, and then the abutting block is abutted to the periphery of the mounting plate through the driving piece; after passing through the through hole and the mounting plate, the locking bolt is in threaded connection with the fastening plate to fix the mounting plate; therefore, the possibility of deviation of the mounting plate during installation can be effectively reduced, and the processing quality of the workpiece is improved;

2. the setting of guide way can reduce the condition that the axis of screw rod takes place the skew for the lateral wall of supporting the piece can closely laminate on the lateral wall of mounting panel.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is an exploded view of the mounting plate, three-jaw chuck and base in this embodiment;

fig. 3 is a schematic structural diagram of a drilling machine in the related art.

Description of reference numerals: 1. a bed body; 2. a drill bit; 3. a three-jaw chuck; 4. a base; 41. perforating; 42. a guide groove; 43. a circular hole; 5. mounting a plate; 6. locking the bolt; 7. a fastening plate; 8. a propping block; 9. a drive member; 91. a threaded seat; 92. a screw; 921. rotating the disc; 922. and a bearing.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses a drilling machine. Referring to fig. 1, the drilling machine includes a bed 1, a drill 2 mounted on the bed 1, a three-jaw chuck 3 mounted on the bed 1 for clamping a workpiece, and a base 4 for fixing the three-jaw chuck 3.

Referring to fig. 1 and 2, a mounting plate 5 having a rectangular cross section is welded and fixed to the bottom of the three-jaw chuck 3. Four corners of the mounting plate 5 are provided with locking bolts 6 and fastening plates 7. Four corners of the base 4 are vertically provided with through holes 41. The diameter of the thread section of the locking bolt 6 is smaller than the diameter of the through hole 41, and the diameter of the bolt head of the locking bolt 6 is larger than the diameter of the through hole 41. The fastening plate 7 is placed on the upper end face of the mounting plate 5, and the locking bolt 6 penetrates through the through hole 41 and the mounting plate 5 from bottom to top to be conveniently in threaded connection with the fastening plate 7, so that the mounting plate 5 is fixedly mounted on the base 4. Through the setting of mounting plate 7, increase the area of contact of mounting plate 7 and mounting panel 5, improve stability.

Referring to fig. 1 and 2, in the process of fixing the mounting plate 5 by the locking bolt 6, the mounting plate 5 is prevented from being displaced. The base 4 is provided with a supporting block 8 at four sides of the mounting plate 5 and a driving member 9 for driving the supporting block 8 to support the mounting plate 5.

Referring to fig. 2, the driving member 9 includes a threaded seat 91 and a threaded rod 92, the threaded seat 91 is welded and fixed on the base 4; the screw 92 is screwed to the screw seat 91, and the axis of the screw 92 is perpendicular to the central axis of the three-jaw chuck 3. One end of the screw 92 is rotatably connected to the abutting block 8 through a bearing 922, and the other end of the screw passes through the threaded seat 91 and is welded with the rotating disc 921. Through the tight piece 8 of supporting of week side to the tight of mounting panel 5 for the axis of three-jaw chuck 3 can aim at the axis in drill bit 2, thereby makes locking bolt 6 at the in-process of fixed mounting panel 5, and the condition that the skew takes place can be reduced to mounting panel 5, and then improves the processingquality of work piece.

Referring to fig. 2, further, after a long period of use, the screw 92 may be loosened from the screw seat 91 due to abrasion of the thread between the screw 92 and the screw seat 91, and the axis of the screw 92 may be deviated from the central axis of the three-jaw chuck 3 during rotation. Therefore, the base 4 is provided with guide grooves 42 corresponding to the abutting blocks 8 one by one. The length direction of the guide groove 42 is the same as the axial direction of the screw 92, and the bottom of the abutting block 8 correspondingly slides in the guide groove 42, so that the screw 92 can drive the abutting block 8 to stably move.

Referring to fig. 2, the guide groove 42 has a dovetail groove structure with a width of the groove opening smaller than the width of the groove bottom. The bottom of the abutting block 8 is correspondingly attached to the groove wall of the guide groove 42 in a sliding manner, so that the abutting block 8 cannot deviate in the vertical direction. Round hole 43 has been seted up in the center department of base 4 through, and the one end of guide way 42 extends to round hole 43 inner wall to in installing the bottom one-to-one of tight piece 8 to the guide way 42.

The implementation principle of a drilling machine in the embodiment of the application is as follows:

when the mounting plate 5 is fixed, the rotating disc 921 is driven to drive the screw 92 to rotate, so that the abutting block 8 abuts against the mounting plate 5, and the three-jaw chuck 3 is adjusted, so that the central axis of the three-jaw chuck is aligned to the central axis of the drill bit 2; the rotating disc 921 is driven to rotate continuously, so that the abutting block 8 abuts against the mounting plate 5 stably. After the mounting plate 5 is positioned, the mounting plate 5 passes through the through holes 41 and the mounting plate 5 one by one through the locking bolts 6 and is in threaded connection with the fastening plate 7, and the mounting plate 5 is stably mounted on the base 4.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A drilling machine comprises a bed body (1), a drill bit (2) arranged on the bed body (1), a three-jaw chuck (3) arranged on the bed body (1) and used for clamping a workpiece, and a base (4) for fixing the three-jaw chuck (3); the bottom of the three-jaw chuck (3) is fixedly connected with a mounting plate (5); the method is characterized in that: the four corners of the base (4) are provided with through holes (41), and the four corners of the mounting plate (5) are provided with locking bolts (6) and fastening plates (7); the diameter of the locking bolt (6) is smaller than that of the through hole (41), and the diameter of the bolt head of the locking bolt (6) is larger than that of the through hole (41); the locking bolt (6) penetrates through the through hole (41) and the mounting plate (5) and then is in threaded connection with the fastening plate (7); the base (4) is provided with the abutting block (8) at the interval of the circumferential side of the mounting plate (5) and drives the abutting block (8) to move towards the driving piece (9) of the central axis of the three-jaw chuck (3).

2. A drill press as claimed in claim 1, wherein: the driving piece (9) comprises a threaded seat (91) and a screw rod (92), the threaded seat (91) is arranged on the base (4), the screw rod (92) is horizontally connected to the threaded seat (91) in a threaded mode, and one end, close to the mounting plate (5), of the screw rod (92) is rotatably connected with the abutting block (8).

3. A drill press as claimed in claim 2, wherein: and a rotating disc (921) is arranged at one end of the screw rod (92) far away from the abutting block (8).

4. A drill press as claimed in claim 2, wherein: guide grooves (42) are formed in the base (4) in a one-to-one correspondence mode with the abutting blocks (8), the length direction of each guide groove (42) is the same as the axial direction of the corresponding screw (92), and the bottoms of the abutting blocks (8) slide in the guide grooves (42).

5. The drill press of claim 4, wherein: the width of the notch of the guide groove (42) is smaller than that of the groove bottom, and the bottom of the abutting block (8) is attached to the groove wall of the guide groove (42) in a sliding mode.

6. The drill press of claim 5, wherein: a round hole (43) is formed in the center of the base (4), and one end of the guide groove (42) is communicated with the round hole (43).

7. A drill press as claimed in claim 2, wherein: the abutting block (8) is rotatably connected with the screw (92) through a bearing (922).

8. A drill press as claimed in claim 1, wherein: the fastening plate (7) is placed on the upper end face of the mounting plate (5), and the locking bolt (6) penetrates through the through hole (41) from bottom to top and is in threaded connection with the fastening plate (7) after passing through the mounting plate (5).