CN211248411U

CN211248411U - High-precision continuous machining drilling machine

Info

Publication number: CN211248411U
Application number: CN201922327763.8U
Authority: CN
Inventors: 张明明; 张小涛
Original assignee: Wuxi Aierxin Precision Machinery Manufacturing Co ltd
Current assignee: Wuxi Aierxin Precision Machinery Manufacturing Co ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-08-14
Anticipated expiration: 2029-12-20

Abstract

The utility model relates to a high-precision continuous processing drilling machine, which comprises two rotating shafts positioned below a drill bit, wherein two annular conveyor belts which are parallel to each other are sleeved on the two rotating shafts together, one rotating shaft is connected with a power source which periodically generates driving force, and the conveying direction of the conveyor belts is vertical to the axial direction of the rotating shafts; the movable plates are distributed at equal intervals along the length direction of the conveyor belts, two ends of each movable plate are respectively movably connected to the two conveyor belts, and a clamping component for clamping a workpiece to be processed is arranged on the side, away from the conveyor belts, of each movable plate; the clamping assembly comprises a positioning plate, a clamping plate and an elastic resetting assembly; two ends of the positioning plate are respectively provided with a stop block positioned at one side of the positioning plate facing the clamping plate; the workbench is arranged on the rack and used for supporting the movable plate during drilling; and the driving mechanism is used for generating driving force to drive the clamping plate to be close to the positioning plate along the length direction of the movable plate. The utility model discloses have the high-efficient and high advantage of drilling precision of batch drilling processing.

Description

High-precision continuous machining drilling machine

Technical Field

The utility model belongs to the technical field of the technique of machine tool and specifically relates to a high accuracy continuous processing drilling machine is related to.

Background

When an existing drilling machine carries out drilling machining, a workpiece needs to be fixed on a workbench through a clamp, and then the drilling machining is carried out through adjusting the position of the workbench or through a moving drill bit.

The prior chinese patent with publication number CN200963699Y discloses a drilling machine, which comprises a base, a support connected with the base in a matching manner, a main spindle box connected with the support in a matching manner, and a workbench approximately arranged in the middle of the support, wherein a driving mechanism for driving a drill bit to feed is arranged in the main spindle box. The vertical direction is provided with a sliding structure, the space is large, the horizontal direction is provided with a moving mechanism, so that the workbench can be adjusted in the vertical and horizontal directions, and the hand wheel is also provided with scale marks, so that the accurate positioning during the porous operation can be realized.

However, the above prior art solutions have the following drawbacks: during drilling, the relative position of the workpiece and the drill needs to be adjusted depending on the experience of an operator. When parts or workpieces are drilled in batches, the workpiece position and the drill bit relative position which are adjusted at each time are difficult to be ensured to be consistent, and certain deviation exists in the drilling position on the parts which are produced in batches. There is a need for an improved existing drill press to improve the accuracy of batch drilling operations.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a high-accuracy continuous processing drilling machine that batch drilling processing is high-efficient and the precision is high.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a high-precision continuous processing drilling machine comprises a frame, a main spindle box and a drill bit arranged in the main spindle box and driven by a driving mechanism in the main spindle box;

the drilling machine is characterized by further comprising two rotating shafts arranged on the side surface of the rack and located below the drill bit, wherein two annular conveying belts which are parallel to each other are sleeved on the two rotating shafts together, the tail end of one rotating shaft is connected with a power source for periodically generating driving force, and the conveying direction of each conveying belt is perpendicular to the axial direction of the rotating shaft;

the movable plates are distributed at equal intervals along the length direction of the conveyor belts, two ends of each movable plate are respectively movably connected with the two conveyor belts, and a clamping component for clamping a workpiece to be processed is arranged on the side, away from the conveyor belts, of each movable plate; the clamping assembly comprises a positioning plate fixed on the movable plate, a clamping plate arranged in parallel with the positioning plate and an elastic resetting assembly used for driving the clamping plate to be far away from the positioning plate along the length direction of the movable plate; the two ends of the positioning plate are respectively provided with a blocking block, and the blocking blocks are arranged on one side of the positioning plate facing the clamping plate;

the workbench is arranged on the machine frame and used for supporting the movable plate during drilling;

and the driving mechanism is used for generating driving force to drive the clamping plate to be close to the positioning plate along the length direction of the movable plate.

Through adopting above-mentioned technical scheme, will treat that the work piece of processing is placed between locating plate and splint for the work piece is tentatively fixed. The power source periodically generates driving force to drive the conveyor belt to move, so that the movable plate is driven to move. The interval that the power supply produces drive power rationally sets up can make when stopping the drive at every turn, the fly leaf just removes under the drill bit. At the moment, the movable plate is attached to the top surface of the workbench, and the clamping plate and the positioning plate can be driven to be close to each other under the action of the driving mechanism, so that the workpiece is fastened. And then, drilling the workpiece by using the drill. After drilling is completed, the driving mechanism releases the pushing acting force on the clamping plate, the clamping plate is far away from the positioning plate under the action of the elastic reset assembly, and the workpiece is loosened. The power source continues to drive the conveyor belt to move, the workpiece which completes drilling is conveyed along with the movable plate to be far away from the machining position, and the subsequent workpiece to be drilled moves along with the movable plate to be under the drill bit. During processing, the workpiece to be processed and the workpiece to be processed are continuously placed on the movable plate at one end of the conveying direction, and the other end of the workpiece is continuously lifted off to complete processing, so that batch drilling processing can be efficiently carried out, and the relative position of the workpiece and the drill bit is adjusted without depending on human experience, so that the drilling precision of the workpiece produced in batch is greatly increased.

Furthermore, the elastic reset assembly comprises a fixed plate arranged on the movable plate, at least two movable rods arranged through the fixed plate, an elastic piece sleeved on the movable rods and a pushing plate used for transmitting the driving force generated by the driving mechanism, wherein one end of the movable plate is connected to the clamping plate, and the other end of the movable plate is connected to the pushing plate; the pushing plate and the clamping plate are respectively positioned on two sides of the fixed plate, and the elastic piece is arranged between the fixed plate and the pushing plate.

Through adopting above-mentioned technical scheme, actuating mechanism produces thrust and promotes to pushing away the push pedal and remove to being close to the locating plate direction, and it moves fly leaf and splint removal to push away the board to make splint and locating plate cooperation press from both sides tight work piece.

Furthermore, each movable plate is provided with two groups of clamping assemblies, each group of clamping assemblies is provided with an actuating mechanism, and the spindle box is provided with two drill bits which correspond to the clamping assemblies one by one in position.

Through adopting above-mentioned technical scheme, can fix two work pieces simultaneously on the same fly leaf for can accomplish the drilling processing to two work pieces simultaneously, further promote batch drilling machining efficiency.

Furthermore, the movable plate is provided with a yielding hole for the drill bit to insert during drilling.

Through adopting above-mentioned technical scheme, when boring and establishing the through-hole, the drill bit runs through and inserts to stepping down downthehole behind the work piece, can play the guard action to the drill bit, also can avoid the drill bit to touch the fly leaf of stereoplasm and shake, has improved the drilling precision.

Further, order about the mechanism and include the actuating cylinder that drives that sets up along parallel movable rod axis direction, the expansion end that drives actuating cylinder is provided with promotion portion.

Through adopting above-mentioned technical scheme, drive actuating cylinder and install and control easily, pushing part removes when producing thrust, and the pushing part that removes orders about and supports the push plate and remove thereupon, and then makes splint press from both sides tight work piece, accomplishes the centre gripping fixed to the work piece.

Furthermore, the pushing part is a pushing plate arranged at the movable end of the driving cylinder.

Through adopting above-mentioned technical scheme, the slurcam can increase and support the area of contact between the pushing ram, has disperseed to support the pressure that the pushing ram received, does benefit to the protection on the one hand and supports the pushing ram, and on the other hand also makes to support that the pushing ram atress is even, splint remove steadily.

Furthermore, installation blocks are arranged on the conveyor belt and the movable plate, and a rotating pin penetrates between the installation blocks at the joint of the conveyor belt and the movable plate along the length direction of the movable plate.

Through adopting above-mentioned technical scheme, the fly leaf can be along with the conveyer belt steady movement, can smoothly walk around the pivot.

Further, the power source is a stepping motor.

By adopting the technical scheme, parameters can be reasonably set, timing starting is realized, the moving distance of the driving conveyor belt is equal to the distance between the two movable plates each time, and after one movable plate is moved away, the follow-up movable plate is accurately conveyed to the position right below the drill bit.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the workpiece is fixed on the movable plates, the movable plates are driven by the conveying belt intermittently to move to the position under the drill bit in sequence, and then drilling processing is completed, so that the drilling processing is efficient, the relative position of the workpiece and the drill bit does not need to be adjusted manually, and the batch drilling processing efficiency and the drilling processing accuracy are greatly improved;

2. the positioning plate, the clamping plate, the elastic reset assembly and the driving mechanism are matched with each other, so that stable clamping and positioning of a workpiece can be realized, and the drilling machining precision is improved;

3. be equipped with two sets of centre gripping subassemblies on the fly leaf, the headstock is equipped with two drill bits simultaneously, can accomplish the drilling processing of two work pieces simultaneously, has further promoted machining efficiency.

Drawings

FIG. 1 is a schematic structural diagram of a high-precision continuous machining drilling machine in the embodiment;

FIG. 2 is a side view of the high precision continuous machining drill press of the embodiment;

FIG. 3 is an exploded view of the high precision continuous machining drill press of the embodiment;

FIG. 4 is an enlarged view of portion A of FIG. 3;

fig. 5 is a sectional view of the high-precision continuous working drill press in the embodiment.

In the figure, 1, a frame; 2. a main spindle box; 21. a drill bit; 3. a rotating shaft; 4. a conveyor belt; 5. a movable plate; 51. Positioning a plate; 511. a blocking block; 52. a splint; 53. a fixing plate; 54. pushing the plate; 55. a movable rod; 56. an elastic member; 57. a hole of abdication; 58. mounting blocks; 59. a rotation pin; 6. a driving cylinder; 61. a push plate; 62. a mounting seat; 7. a stepping motor; 8. a work table; 81. a support frame; 82. side dams.

Detailed Description

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

A high-precision continuous machining drilling machine is disclosed, and referring to fig. 1 and 2, the drilling machine comprises a machine frame 1, a main spindle box 2 arranged on the machine frame 1 and a drill bit 21 arranged on the main spindle box 2, and a driving mechanism used for providing driving force for feeding the drill bit 21 is arranged in the main spindle box 2. In the present embodiment, two drill bits 21 are provided, and two workpieces can be drilled simultaneously.

Referring to fig. 1 and 2, two rotating shafts 3 are disposed on the side surface of the frame 1 below the drill bit 21, and the axial direction of the rotating shafts 3 is perpendicular to the side surface of the frame 1 and perpendicular to the axial direction of the drill bit 21. Three supporting frames 81 are arranged on the frame 1 at equal intervals along the direction perpendicular to the axis of the rotating shaft 3, and the supporting frames 81 are arranged below the rotating shaft 3. A side baffle 82 parallel to the side of the frame 1 is fixed on the supporting frame 81. One end of the rotating shaft 3 is rotatably connected to the frame 1, and the other end is rotatably connected to the side shield 82. The side baffle 82 is provided with a stepping motor 7 on one side departing from the frame 1, and the driving end of the stepping motor 7 is in belt transmission with one rotating shaft 3. The parameters of the stepping motor 7 are reasonably set, so that the stepping motor 7 can be periodically started, and the conveyor belt 4 is driven to move by the same distance every time.

Referring to fig. 1 and 2, two endless belts 4 are sleeved on the two shafts 3, and in this embodiment, the belts 4 are rubber belts. The conveying direction of the two conveying belts 4 is perpendicular to the axial direction of the rotating shaft 3 and the drill bit 21, one conveying belt 4 is arranged close to the side baffle 82, and the other conveying belt 4 is arranged close to the rack 1. A plurality of movable plates 5 are arranged on the conveyor belt 4 along the direction parallel to the axis of the rotating shaft 3, the movable plates 5 are distributed at equal intervals along the length direction of the conveyor belt 4, and a clamping assembly used for fixing a workpiece is arranged on one side, away from the conveyor belt 4, of each movable plate 5.

Referring to fig. 3 and 4, two ends of the movable plate 5 are movably connected with the two conveyor belts 4, the movable plate 5 and the conveyor belts 4 are both provided with mounting blocks 58, and a pressing and rotating pin 59 penetrates between the mounting blocks 58 at corresponding positions. The axial direction of the rotating pin 59 is parallel to the axial direction of the rotating shaft 3, and the mounting block 58 on the movable plate 5 is located at the middle point of the short side of the movable plate 5, so that the movable plate 5 can rotate around the rotating pin 59 in a small range, and the movable plate 5 can easily bypass the rotating shaft 3 when the conveyor belt 4 runs.

Referring to fig. 3 and 4, the clamping assembly includes a positioning plate 51 disposed along the width direction of the movable plate 5 and a clamping plate 52 disposed parallel to the positioning plate 51, the positioning plate 51 is provided at both ends thereof with blocking blocks 511, and the blocking blocks 511 are disposed at a side of the positioning plate 51 facing the clamping plate 52. The two blocks 511 and the positioning plate 51 together form a U-shape that opens toward the clamping plate 52. The positioning plate 51, the stop block 511 and the clamping plate 52 together form a clamping position for clamping a workpiece, and two sets of clamping assemblies are arranged on each movable plate 5 in the embodiment. The two groups of clamping components are distributed in a mirror symmetry mode by taking the symmetrical center line of the long edge of the movable plate 5 as a symmetry axis. The distance between the two clamping assemblies is equal to the distance between the two drills 21, and when the movable plate 5 moves below the drills 21, the two clamping assemblies correspond to the drills 21 one by one.

Referring to fig. 3 and 4, in order to maintain stability of the workpiece during drilling, an actuating mechanism is provided on both the frame 1 and the side guards 82. The actuating mechanism comprises a driving cylinder 6 and a mounting seat 62 for mounting the driving cylinder 6, wherein the axial direction of the driving cylinder 6 is perpendicular to the axial direction of the drill bit 21. The driving end of the driving cylinder 6 is provided with a push plate 61 for transmitting the pushing force generated by the driving cylinder 6. The connecting line between the driving cylinder 6 on the frame 1 and the driving cylinder 6 on the side baffle 82 is parallel to the rotating shaft 3.

Referring to fig. 3 and 4, the movable plate 5 is further provided with an elastic restoring assembly including a fixed plate 53 disposed on the movable plate 5 in a width direction of the movable plate 5. The clamping plates 52 are located between the positioning plate 51 and the fixing plate 53, and each clamping plate 52 is provided with two movable rods 55 penetrating through the fixing plate 53. The two movable rods 55 on the same clamping plate 52 are connected with a pushing plate 54 at the ends far away from the clamping plate 52. The movable rod 55 is further sleeved with an elastic member 56, and in this embodiment, the elastic member 56 is a compression spring disposed between the fixed plate 53 and the pushing plate 54. When the movable plate 5 moves to a position where the two driving cylinders 6 are connected, the driving cylinders 6 generate thrust, and the pushing plate 61 moves to be attached to the pushing plate 54, so as to push the pushing plate 54 to move; the elastic piece 56 is compressed, and the clamping plate 52 is close to the positioning plate 51, so that the workpiece is clamped and fastened, the workpiece is not easy to loosen and deviate in the drilling process, and the drilling accuracy is improved. When the driving cylinder 6 releases the pushing force, the elastic member 56 is restored, so that the clamping plate 52 releases the workpiece.

Referring to fig. 4 and 5, a workbench 8 is further inserted between the two conveyor belts 4, one end of the workbench 8 is connected to the side surface of the frame 1, and the other end is connected to the side baffle 82. During drilling, the movable plate 5 which is moved to the position of the workbench 8 is attached to the top surface of the workbench 8, and the workbench 8 can support the movable plate 5 during drilling. In order to prevent the drill 21 from being damaged by touching the movable plate 5 when the drill 21 is fed, a circular relief hole 57 is formed at a position where the workpiece is fixed on the movable plate 5. When the through hole is opened, the drill bit 21 is inserted into the abdicating hole 57 after drilling through the workpiece, so that the drill bit 21 can be protected from being damaged. Correspondingly, the working table 8 is also provided with a waist-shaped abdicating hole 57 which can play a role in protecting the drill bit 21 on one hand and is beneficial to discharging metal scraps generated by drilling on the other hand.

The implementation principle of the embodiment is as follows:

setting control parameters of the stepping motor 7 so that the conveyor belt 4 is driven to move by a distance equal to the distance between two adjacent movable plates 5 by a single time; the opening stepping motor 7 drives the conveyor belt 4 to drive the movable plate 5 to intermittently move, and a workpiece is placed on the movable plate 5 by using the gap between the movable plate 5 and the movable plate 5, so that the workpiece is clamped between the positioning plate 51 and the corresponding clamping plate 52. When the conveyor belt 4 moves to drive the movable plate 5 to move to the position of the connecting line of the two driving cylinders 6, namely right below the drill bit 21, the driving cylinders 6 generate thrust to drive the pushing plate 61 to press the pushing plate 54; the pushing plate 54 moves to drive the movable plate 5 and the clamping plate 52 to move, the elastic member 56 is compressed, and the clamping plate 52 clamps the workpiece. The spindle box 2 works to drive the drill bit 21 to feed to finish drilling; at the moment, the workbench 8 plays a role in supporting the movable plate 5, the clamping plate 52 is matched with the positioning plate 51 to clamp the workpiece, and drilling is accurate; the receding holes 57 on the movable plate 5 and the workbench 8 can be used for inserting the drill 21, so that the drill 21 can be protected, and the discharge of drilling debris is facilitated. After completing one drilling, the stepping motor 7 drives the conveyor belt 4 to continue to operate, the workpiece completing the drilling moves to deviate from the original position along with the movable plate 5, and the workpiece to be processed moves to the position below the drill 21 along with the movable plate 5. The continuous drilling machining can be realized through the circulation, the drilling positions are highly consistent at each time, the machining efficiency of batch drilling machining is improved, the accuracy of drilling holes in parts drilled in batches is improved, and the batch drilling machining deviation is greatly reduced.

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. The utility model provides a high accuracy continuous processing drilling machine, includes frame (1), headstock (2) and sets up in headstock (2) drill bit (21) by actuating mechanism driven in headstock (2), its characterized in that: the drilling machine is characterized by further comprising two rotating shafts (3) which are arranged on the side face of the rack (1) and located below the drill bit (21), wherein two annular conveying belts (4) which are parallel to each other are sleeved on the two rotating shafts (3) together, the tail end of one rotating shaft (3) is connected with a power source which periodically generates driving force, and the conveying direction of each conveying belt (4) is perpendicular to the axial direction of the corresponding rotating shaft (3); the movable plates (5) are arranged along the direction perpendicular to the conveying direction of the conveying belts (4), the movable plates (5) are distributed at equal intervals along the length direction of the conveying belts (4), two ends of each movable plate are respectively movably connected to the two conveying belts (4), and a clamping component for clamping a workpiece to be processed is arranged on the side, away from the conveying belts, of each movable plate (5); the clamping assembly comprises a positioning plate (51) fixed on the movable plate (5), a clamping plate (52) arranged in parallel to the positioning plate (51) and an elastic resetting assembly used for driving the clamping plate (52) to be far away from the positioning plate (51) along the length direction of the movable plate (5); two ends of the positioning plate (51) are respectively provided with a blocking block (511), and the blocking blocks (511) are arranged on one side, facing the clamping plate (52), of the positioning plate (51); and a workbench (8) arranged on the frame (1) and used for supporting the movable plate (5) during drilling; and an actuating mechanism for generating an urging force to actuate the clamping plate (52) to approach the positioning plate (51) along the length direction of the movable plate (5).

2. The high-precision continuous working drill press according to claim 1, wherein: the elastic reset assembly comprises a fixed plate (53) arranged on the movable plate (5), at least two movable rods (55) arranged through the fixed plate (53), an elastic piece (56) sleeved on the movable rods (55) and a pushing plate (54) used for transmitting the driving force generated by the driving mechanism, wherein one end of the movable plate (5) is connected to the clamping plate (52) and the other end is connected to the pushing plate (54); the pushing plate (54) and the clamping plate (52) are respectively positioned on two sides of the fixing plate (53), and the elastic piece (56) is arranged between the fixing plate (53) and the pushing plate (54).

3. The high-precision continuous working drill press according to claim 2, wherein: each movable plate (5) is provided with two groups of clamping assemblies, each group of clamping assemblies is provided with an actuating mechanism, and the spindle box (2) is provided with two drill bits (21) which correspond to the clamping assemblies one by one.

4. The high-precision continuous working drill press according to claim 2, wherein: the movable plate (5) is provided with a yielding hole (57) for inserting the drill bit (21) during drilling.

5. The high-precision continuous working drill press according to claim 2, wherein: the actuating mechanism comprises a driving cylinder (6) arranged along the axis direction of the parallel movable rod (55), and a pushing part is arranged at the movable end of the driving cylinder (6).

6. The high precision continuous process drill press of claim 5, wherein: the pushing part is a pushing plate (61) arranged at the movable end of the driving cylinder (6).

7. The high-precision continuous working drill press according to claim 1, wherein: the conveyor belt (4) and the movable plate (5) are both provided with mounting blocks (58), and rotating pins (59) penetrate through the mounting blocks (58) at the joint of the conveyor belt (4) and the movable plate (5) along the length direction of the movable plate (5).

8. The high-precision continuous working drill press according to claim 1, wherein: the power source is a stepping motor (7).