CN211053165U

CN211053165U - Drilling machine convenient to clamp flange

Info

Publication number: CN211053165U
Application number: CN201922129086.9U
Authority: CN
Inventors: 孟茜; 李翠
Original assignee: Zhangqiu Prius Forging Co ltd
Current assignee: Zhangqiu Prius Forging Co ltd
Priority date: 2019-11-30
Filing date: 2019-11-30
Publication date: 2020-07-21
Anticipated expiration: 2029-11-30

Abstract

The utility model discloses a drilling machine convenient to press from both sides tight flange belongs to frock technical field for the drilling machine processing, which comprises a frame, rotary platform and clamping device, clamping device includes the lead screw, at least three tight piece of clamp, connecting rod and axle sleeve, the lead screw rotates to be connected on sliding platform, and the rotary platform cover is established outside the lead screw and is connected with the lead screw rotation, press from both sides tight piece circumference array in the circumference of lead screw, and press from both sides tight piece and rotate with rotary platform along the direction in perpendicular to lead screw axle center and be connected, the one end of connecting rod is articulated with pressing from both sides tight piece, the other end of connecting rod is articulated with the outer peripheral face of axle sleeve, the inner peripheral surface of axle sleeve is provided with. Through the setting, when the flange is clamped to needs, place the flange on rotary platform earlier, later rotate the lead screw, drive through axle sleeve and connecting rod and press from both sides tight piece and slide in the direction of perpendicular to lead screw, and then press from both sides the hole of tight flange, convenient high efficiency, and need not change clamping device and can press from both sides the flange of tight different internal diameters.

Description

Drilling machine convenient to clamp flange

Technical Field

The utility model belongs to the technical field of the frock is used in the drilling machine processing, especially, relate to a drilling machine convenient to press from both sides tight flange.

Background

The drilling machine is a machine tool which mainly uses a drill to machine a hole on a workpiece. Typically the drill bit is rotated into a primary motion and the drill bit is moved axially into a feed motion. The drilling machine is simple in structure, relatively low in machining precision, capable of drilling through holes and blind holes, replacing special cutters, and capable of expanding, reaming or tapping and the like.

At present, chinese utility model patent that publication number is CN201744871U provides a adds clamping apparatus of ring flange, including the base, install central locating pin on the base, the cover is equipped with respectively on the central locating pin and takes circular open-ended clamp plate, ring flange, and the activity is articulated on one side of base has the bushing plate, and the bushing plate turns to the position hole department of ring flange and is equipped with drilling, installs drill bushing, fixed cover in the drilling. When the flange is clamped, the flange is sleeved outside the central positioning pin, then the pressing plate is sleeved outside the central positioning pin, and then the pressing plate is screwed on the central positioning shaft by using a nut so as to press the flange tightly.

Among the above-mentioned technical scheme, need when installing the flange cover establish the central locating pin outside carry out coaxial fixed to the flange, but in case the internal diameter of flange changes, just can press from both sides tight flange again by changing the central locating pin, consequently it is inconvenient to press from both sides tight flange that the diameter is different.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a be convenient for press from both sides drilling machine of tight flange when giving the flange drilling.

The utility model discloses a can realize through following technical scheme:

a drilling machine convenient for clamping a flange comprises a rack, wherein a horizontal working platform is fixedly arranged on the rack, a drill bit is arranged above the working platform and is perpendicular to the working platform, the drill bit is driven by a motor, a sliding platform is connected onto the working platform in a sliding manner, and a rotating device for rotating the flange and a clamping device for clamping the flange are arranged on the sliding platform; the rotating device comprises a rotating platform and a positioning piece, the rotating platform is rotatably arranged on the sliding platform, and the positioning piece is arranged on the sliding platform and used for positioning the rotating platform;

the clamping device comprises a lead screw, at least three clamping blocks, connecting rods and a shaft sleeve, wherein the connecting rods and the shaft sleeve are the same in number as the clamping blocks, the lead screw is rotatably connected onto the sliding platform, the rotating platform is sleeved outside the lead screw and is rotatably connected with the lead screw, the clamping blocks are circumferentially arrayed in the circumferential direction of the lead screw, the clamping blocks are slidably connected with the rotating platform in the direction perpendicular to the axis of the lead screw, one end of the connecting rod is hinged to the clamping blocks, the other end of the connecting rod is hinged to the outer peripheral face of the shaft sleeve, threads are arranged on the inner peripheral face of the shaft sleeve.

Through above-mentioned technical scheme, when the tight flange of needs clamp, place the flange on rotary platform earlier to rotary platform passes through positioning mechanism location, makes rotary platform can not take place relative rotation with sliding platform, later rotates the lead screw, drives through axle sleeve and connecting rod and presss from both sides tight piece and slide in the direction of perpendicular to lead screw, and then presss from both sides the hole of tight flange, and is convenient high-efficient, and need not change clamping device and can press from both sides the flange of tight different internal diameters.

Furthermore, the surface of the clamping block, which is abutted against the flange, is provided with anti-slip lines, and the anti-slip lines are arranged along the axis direction of the lead screw.

Through the technical scheme, because the inner hole of the flange is the arc surface, the surface of the clamping block abutted to the flange is arranged to be the arc surface, so that the stress area of the clamping block and the flange can be increased, and further

Furthermore, clamping device still includes glide machanism, and glide machanism includes T type slider and sets up the T type spout on rotary platform, and T type spout sets up along the direction of perpendicular to lead screw axle center, and T type slider slides with T type spout and is connected, presss from both sides tight piece and T type slider fixed connection.

Through the technical scheme, the clamping block can only slide relative to the rotating platform along the direction perpendicular to the axis of the screw rod, so that the phenomenon that the flange is not completely clamped due to movement in other directions when the clamping block clamps the flange is avoided.

Furthermore, the surface, far away from the T-shaped sliding groove, of the T-shaped sliding block is higher than the upper surface of the rotating platform, and the clamping block is fixedly arranged on the surface, far away from the T-shaped sliding groove, of the T-shaped sliding block.

Through above-mentioned technical scheme, the face of placing that the T type spout can regard as the flange to use is kept away from to the one side of T type slider, therefore the flange can needn 'T place again on rotary platform, so set up the lower surface that makes the flange and rotary platform's upper surface and leave the space, make things convenient for flange processing through-hole.

Furthermore, the connecting rod and the clamping block and the connecting rod and the shaft sleeve are hinged through bolt pairs.

Through above-mentioned technical scheme, when pressing from both sides tight piece, connecting rod or axle sleeve and need change the maintenance, can press from both sides tight piece, connecting rod and axle sleeve and unpack apart alone respectively and lift off, be convenient for change the maintenance.

Furthermore, a rotating mechanism used for rotating the lead screw is arranged on the lead screw, the rotating mechanism comprises a rocker, the rocker is connected with the lead screw, and the rocker is arranged between the rotating platform and the sliding platform.

Through above-mentioned technical scheme, rotate the rocker and can rotate the lead screw, make operating personnel more laborsaving, set up the rocker between rotary platform and sliding platform, can avoid rocker and flange to interfere, the frock of the flange of being convenient for is tight.

Furthermore, the rotating mechanism also comprises a bidirectional locking component, the bidirectional locking component comprises a bidirectional ratchet wheel, a first pawl, a first spring, a second pawl, a second spring and a poke rod, wherein the bidirectional ratchet wheel is coaxially and fixedly connected on the screw rod, one end of the first pawl is hinged with the rocker, the other end of the first pawl is meshed with the bidirectional ratchet wheel, one end of the first spring is fixedly connected with the rocker, the other end of the first spring is fixedly connected with the first pawl, one end of the second pawl is hinged with the rocker, the other end of the second pawl is meshed with the bidirectional ratchet wheel, one end of the second spring is fixedly connected with the rocker, the other end of the second spring is fixedly connected with the second pawl, the first pawl and the second pawl are symmetrically arranged at two sides of the rocker, the center of the poke rod is hinged on the rocker, and the center of the poke rod is arranged on the symmetrical line of the first pawl and the second pawl, and the two ends of the poke rod are respectively abutted against the first pawl and the second pawl.

Through the technical scheme, the poke rod is rotated in the forward direction, the first pawl is meshed with the bidirectional ratchet wheel, the second pawl is separated from the bidirectional ratchet wheel, the screw rod can only rotate in the forward direction at the moment, the poke rod is rotated in the reverse direction, the second pawl is meshed with the bidirectional ratchet wheel, the first pawl is separated from the bidirectional ratchet wheel, the screw rod can only rotate in the reverse direction at the moment, and therefore when the clamping block needs to be clamped or loosened, the poke rod only needs to be poked to the opposite position, and then the rocker is continuously swung, so that a worker can operate more conveniently.

Further, slewing mechanism still includes control lever and control line, and the length of control lever is the same with the poker rod, and the center of control lever articulates in the handheld one end of rocker, and the center setting of control lever is on the line of symmetry of first pawl and second pawl, and the both ends of control lever pass through the control line respectively with the both ends of poker rod and link to each other, and the control line is fixed connection with control lever and poker rod, makes poker rod, control line and control rod form parallelogram.

Through the technical scheme, because the rocker is arranged below the rotary platform, an operator cannot conveniently stir the poking rod, the control rod is hinged to one end of the rocker, the two ends of the control rod and the two ends of the poking rod are respectively connected through the two control lines to form a parallelogram, and the poking rod can be rotated at the same angle by rotating the control rod according to the principle of the parallelogram, so that the operation of the worker is facilitated.

Further, the rocker setting is hollow pipe, and two-way locking Assembly, control line and control lever all set up in the rocker, and coaxial articulated with the control lever has handheld portion on the outer wall of rocker.

Through above-mentioned technical scheme, because the drilling machine can produce a large amount of iron fillings when using, so set up both can avoid the dead two-way locking Assembly of iron fillings card, also can avoid iron fillings to draw off the control line, improved slewing mechanism's interference killing feature.

To sum up, with current technical contrast, the beneficial effects of the utility model are as follows:

1. through the setting of clamping device, make the workman needn't change the tight clamp that different internal diameter flanges can be accomplished to the part on the clamping device again, the commonality is good and practical convenient.

2. Through keeping away from the one side of T type spout with T type slider and setting up to be higher than rotary platform's upper surface, when pressing from both sides tight flange, the flange can be placed on T type slider, and the lower surface of flange just so forms the clearance with rotary platform's upper surface, and the drill bit of being convenient for passes the flange.

3. Through slewing mechanism's setting, the operation workman that makes only need constantly swing the rocker in certain angle and can accomplish the clamp of flange or dismantle, and the operation is convenient high-efficient, has improved production efficiency.

Drawings

FIG. 1 is a schematic partial sectional view of the present embodiment;

FIG. 2 is an enlarged view of a portion of A in FIG. 1;

FIG. 3 is a partial sectional view of the present embodiment, illustrating the position and shape of the rocker;

fig. 4 is a partially sectional schematic view of the rotating mechanism in the present embodiment.

Reference numerals: 1. a frame; 11. a working platform; 12. a drill bit; 13. a sliding platform; 14. a rotating device; 141. rotating the platform; 142. a positioning member; 2. a clamping device; 21. a lead screw; 22. a clamping block; 23. a connecting rod; 24. a shaft sleeve; 25. a sliding mechanism; 251. a T-shaped slider; 252. a T-shaped chute; 3. a rotating mechanism; 31. a rocker; 32. a bi-directional locking assembly; 321. a bidirectional ratchet wheel; 322. a first pawl; 323. a first spring; 324. a second pawl; 325. a second spring; 326. a poke rod; 33. a control line; 34. a control lever; 35. a hand-held portion.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the present embodiment provides a drilling machine convenient for clamping a flange, including frame 1, integrated into one piece or welded work platform 11 on frame 1, be provided with drill bit 12 above work platform 11 and perpendicular to work platform 11, drill bit 12 passes through motor drive. The working platform 11 is provided with a sliding platform 13, and the sliding platform 13 is connected with the upper surface of the working platform 11 in a sliding manner along a direction perpendicular to the drill bit 12.

The sliding platform 13 is provided with a rotating device 14 for rotating the flange and a clamping device 2 for clamping the flange. The rotating device 14 includes a rotating platform 141 and a positioning member 142, the rotating platform 141 is a cylindrical platform, and the rotating platform 141 is rotatably connected to the sliding platform 13 along its own axis. Teeth are uniformly arranged on the peripheral surface of the rotating platform 141, the positioning piece 142 is a positioning tooth, the positioning tooth is hinged on the sliding platform 13, and the positioning tooth is meshed with the rotating platform 141.

Referring to fig. 2, the clamping device 2 includes a screw 21, at least three clamping blocks 22, and connecting rods 23 and a shaft sleeve 24, the number of the clamping blocks 22 is the same, the lower end of the screw 21 is rotatably connected to the sliding platform 13, and the rotating platform 141 is coaxially sleeved outside the screw 21 and rotatably connected to the screw 21. The clamping blocks 22 are uniformly arranged along the axis of the screw 21, and the clamping blocks 22 are connected with the rotating platform 141 in a sliding manner along the direction perpendicular to the axis of the screw 21.

The rotary platform 141 is uniformly provided with T-shaped sliding grooves 252 with the same number as the clamping blocks 22 towards the screw 21, and T-shaped sliding blocks 251 are connected in the T-shaped sliding grooves 252 in a sliding manner along the length direction of the T-shaped sliding grooves 252. The upper surface of the T-shaped slider is higher than the upper surface of the rotary platform 141, the clamping block is welded on the upper surface of the T-shaped slider 251, or the T-shaped slider 251 and the clamping block 22 are integrally formed. In order to increase the friction force between the clamping block 22 and the flange, the surface of the clamping block 22, which is abutted to the flange, is provided with anti-slip threads, and the anti-slip threads are vertically arranged because the inner circumferential surface of the flange is circular. In this embodiment, the number of the clamping blocks 22, the number of the connecting rods 23, the number of the T-shaped sliding blocks 251 and the number of the T-shaped sliding grooves 252 are all three.

One end of the connecting rod 23 is hinged with the clamping block 22 through a bolt pair, and the other end of the connecting rod 23 is also hinged with the outer peripheral surface of the shaft sleeve 24 through a bolt pair. The inner peripheral surface of the sleeve 24 is provided with a screw thread, and the sleeve 24 is screwed to the screw shaft 21.

Referring to fig. 3 and 4, in order to facilitate the operation of the worker to rotate the screw 21, the rotating mechanism 3 is disposed on the screw 21, the rotating mechanism 3 includes a rocker 31, the rocker 31 is rotatably connected to the screw 21, and the rocker 31 is disposed between the sliding platform 13 and the rotating platform 141, so as to prevent the rocker 31 from affecting the installation of the flange.

The turning mechanism 3 further comprises a bidirectional locking assembly 32. The bi-directional locking assembly 32 includes a bi-directional ratchet 321, a first pawl 322, a first spring 323, a second pawl 324, a second spring 325 and a tap lever 326.

Wherein the bidirectional ratchet 321 is coaxially welded on the screw 21 or integrally formed with the screw 21, one end of the first pawl 322 is hinged with the rocker 31, and the other end of the first pawl 322 is engaged with the bidirectional ratchet 321. One end of the first spring 323 is fixedly connected with the rocker 31, and the other end of the first spring 323 is fixedly connected with the first pawl 322.

One end of the second pawl 324 is hinged with the rocker 31, the other end of the second pawl 324 is meshed with the bidirectional ratchet 321, one end of a second spring 325 is fixedly connected with the rocker 31, and the other end of the second spring 325 is fixedly connected with the second pawl 324. The first pawl 322 and the second pawl 324 are symmetrically disposed on opposite sides of a central axis of the rocker 31.

The center of the tap lever 326 is hinged to the rocker 31, and the center of the tap lever 326 is disposed on the line of symmetry of the first pawl 322 and the second pawl 324. Both ends of the tap lever 326 abut against the first pawl 322 and the second pawl 324, respectively.

Since the bi-directional locking assembly 32 is disposed below the rotary platform 141, it is inconvenient for a worker to break the tap lever 326, and for this reason, the turning mechanism 3 is further provided with the control line 33 and the control lever 34. The control rod 34 and the toggle rod 326 have the same length, the center of the control rod 34 is hinged on the symmetrical line of the first pawl 322 and the second pawl 324, and the two ends of the control rod 34 and the toggle rod 326 are respectively connected through the control line 33, so that the control rod 34, the toggle rod 326 and the control line 33 form a parallelogram. As can be seen from the parallelogram rule, rotating the lever 34 causes the tap lever 326 to rotate at the same angle as the lever 34.

Since the drill press can generate a lot of scrap iron during drilling, the rotating mechanism 3 can be disabled if the scrap iron clamps the two-way locking assembly 32 or cuts off the control line 33. To this end, the rocker 31 is provided as a hollow tube, and the reversible locking assembly 32, the control line 33 and the control lever 34 are all provided within the rocker 31. The lever 34 and the hinge axis of the rocker 31 pass through the rocker 31, and a handle 35 is fixedly connected to one end of the hinge axis extending out of the rocker 31 by a pin, and rotating the handle 35 corresponds to rotating the lever 34. So set up except handheld portion 35, other spare parts of slewing mechanism 3 have all set up in rocker 31, make slewing mechanism 3 avoid iron fillings to influence, have improved slewing mechanism 3's interference killing feature.

The implementation principle of the embodiment is as follows:

when the flange needs to be clamped, the positioning piece 142 is firstly engaged with the rotating platform 141 by rotating the positioning piece 142, then the flange is placed on the upper surface of the T-shaped sliding block 251, then the handheld part 35 is pulled off, the lead screw 21 is rotated by swinging the rocker 31, and then the clamping block 22 is enabled to clamp the flange plate;

when the rotating platform 141 needs to be rotated, the positioning piece 142 is rotated to separate the positioning piece 142 from the rotating platform 141, and then the rocker 31 is pulled off to rotate the rotating platform 141 together with the screw 21;

when the flange plate needs to be dismounted, the rotating platform 141 is positioned through the positioning mechanism, the hand-held part 35 is reversely pulled, the screw rod 21 can only reversely rotate when the rocker 31 is pulled, and the clamping block 22 is enabled to clamp the flange plate.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A drilling machine convenient for clamping a flange comprises a rack (1), wherein a horizontal working platform (11) is fixedly arranged on the rack (1), a drill bit (12) is arranged above the working platform (11) and is perpendicular to the working platform (11), the drill bit (12) is driven by a motor, a sliding platform (13) is connected onto the working platform (11) in a sliding manner, and a rotating device (14) for rotating the flange and a clamping device (2) for clamping the flange are arranged on the sliding platform (13); the rotating device (14) comprises a rotating platform (141) and a positioning piece (142), the rotating platform (141) is rotatably arranged on the sliding platform (13), and the positioning piece (142) is arranged on the sliding platform (13) and is used for positioning the rotating platform (141);

clamping device (2) include lead screw (21), at least three press from both sides tight piece (22), and press from both sides the connecting rod (23) and a axle sleeve (24) that tight piece (22) quantity is the same, lead screw (21) rotate to be connected on sliding platform (13), and rotary platform (141) cover is established outside lead screw (21) and is rotated with lead screw (21) and be connected, press from both sides tight piece (22) circumference array in the circumference of lead screw (21), and press from both sides tight piece (22) along the direction of perpendicular to lead screw (21) axle center with rotary platform (141) sliding connection, the one end of connecting rod (23) is articulated with pressing from both sides tight piece (22), the other end of connecting rod (23) is articulated with the outer peripheral face of axle sleeve (24), the inner peripheral surface of axle sleeve (24) is provided with the screw thread, and axle sleeve (24) and lead.

2. The drilling machine convenient for clamping the flange is characterized in that the surface of the clamping block (22) abutted to the flange is provided with anti-slip threads, and the anti-slip threads are arranged along the direction of the axis of the screw rod (21).

3. The drilling machine convenient for clamping the flange is characterized in that the clamping device (2) further comprises a sliding mechanism (25), the sliding mechanism (25) comprises a T-shaped sliding block (251) and a T-shaped sliding groove (252) formed in the rotating platform (141), the T-shaped sliding groove (252) is arranged in the direction perpendicular to the axis of the lead screw (21), the T-shaped sliding block (251) is connected with the T-shaped sliding groove (252) in a sliding mode, and the clamping block (22) is fixedly connected with the T-shaped sliding block (251).

4. The drilling machine convenient for clamping the flange is characterized in that one surface, far away from the T-shaped sliding groove (252), of the T-shaped sliding block (251) is higher than the upper surface of the rotating platform (141), and the clamping block (22) is fixedly arranged on one surface, far away from the T-shaped sliding groove (252), of the T-shaped sliding block (251).

5. The drilling machine for clamping the flange conveniently according to claim 4, characterized in that the connecting rod (23) and the clamping block (22) and the connecting rod (23) and the shaft sleeve (24) are hinged by using bolt pairs.

6. The drilling machine convenient for clamping the flange is characterized in that a rotating mechanism (3) used for rotating the lead screw (21) is arranged on the lead screw (21), the rotating mechanism (3) comprises a rocker (31), the rocker (31) is connected with the lead screw (21), and the rocker (31) is arranged between the rotating platform (141) and the sliding platform (13).

7. The drilling machine convenient for clamping the flange is characterized in that the rotating mechanism (3) further comprises a bidirectional locking assembly (32), the bidirectional locking assembly (32) comprises a bidirectional ratchet wheel (321), a first pawl (322), a first spring (323), a second pawl (324), a second spring (325) and a poke rod (326), wherein the bidirectional ratchet wheel (321) is coaxially and fixedly connected to the lead screw (21), one end of the first pawl (322) is hinged to the rocker (31), the other end of the first pawl (322) is meshed with the bidirectional ratchet wheel (321), one end of the first spring (323) is fixedly connected to the rocker (31), the other end of the first spring (323) is fixedly connected to the first pawl (322), one end of the second pawl (324) is hinged to the rocker (31), and the other end of the second pawl (324) is meshed with the bidirectional ratchet wheel (321), one end of a second spring (325) is fixedly connected with the rocker (31), the other end of the second spring (325) is fixedly connected with a second pawl (324), the first pawl (322) and the second pawl (324) are symmetrically arranged on two sides of the rocker (31), the center of the poking rod (326) is hinged on the rocker (31), the center of the poking rod (326) is arranged on a symmetrical line of the first pawl (322) and the second pawl (324), and two ends of the poking rod (326) are respectively abutted to the first pawl (322) and the second pawl (324).

8. The drilling machine convenient for clamping the flange is characterized in that the rotating mechanism (3) further comprises a control rod (34) and a control line (33), the length of the control rod (34) is the same as that of the poking rod (326), the center of the control rod (34) is hinged to one end of the rocker (31) held by a hand, the center of the control rod (34) is arranged on a symmetrical line of the first pawl (322) and the second pawl (324), two ends of the control rod (34) are respectively connected with two ends of the poking rod (326) through the control line (33), and the control line (33), the control rod (34) and the poking rod (326) are fixedly connected, so that the poking rod (326), the control line (33) and the control rod (34) form a parallelogram.

9. The drilling machine convenient for clamping the flange is characterized in that the rocker (31) is provided with a hollow pipe, the bidirectional locking assembly (32), the control line (33) and the control rod (34) are all arranged in the rocker (31), and a handheld part (35) is coaxially hinged on the outer wall of the rocker (31) and the control rod (34).