CN213437263U

CN213437263U - High machining precision drilling machine

Info

Publication number: CN213437263U
Application number: CN202022586906.XU
Authority: CN
Inventors: 张诗政; 时述敬; 李光辉
Original assignee: Wendeng Hualong Industrial Co ltd
Current assignee: Wendeng Hualong Industrial Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-06-15
Anticipated expiration: 2030-11-10

Abstract

The application relates to a high-machining-precision drilling machine which comprises a workbench provided with a cutter assembly, wherein a drill bit is arranged on the cutter assembly; the workbench is connected with a plurality of support frames in a sliding manner, the sliding direction of the support frames is vertical to the direction of the drill bit, and the workbench is provided with a driving assembly for driving the support frames to slide; each supporting frame is provided with a group of clamping assemblies, each group of clamping assemblies comprises a first air cylinder positioned in the supporting frame, a first connecting rod respectively hinged with a cylinder seat and a piston rod of the first air cylinder, a second connecting rod hinged with the first connecting rod, and a clamping plate fixedly connected with the second connecting rod; the two first connecting rods are hinged with the support frame, the two clamping plates slide oppositely along the upper surface of the support frame, and the sliding directions are parallel to the direction of the drill bit; first V type groove has all been seted up to the opposite side of two splint, and the tank bottom in first V type groove is mutually perpendicular with the direction of drill bit. This application can improve the stability fixed to tubular workpiece, improves drilling precision and quality.

Description

High machining precision drilling machine

Technical Field

The application relates to the field of drilling machines, in particular to a high-machining-precision drilling machine.

Background

The drilling machine is a machine tool which mainly uses a drill bit to process holes on a workpiece, usually, the drill bit rotates to move mainly, the drill bit moves axially to move in a feeding mode, and the drilling machine is simple in structure, relatively low in processing precision and capable of drilling through holes, blind holes and the like. In the machining process, a workpiece is fixed, the cutter moves, the center of the cutter is aligned with the center of the hole, and the cutter rotates (moves mainly).

The related art can refer to the utility model patent with the publication number of CN209681199U, which discloses a horizontal drilling machine convenient for cleaning scraps, comprising a base, a workbench and a fixed plate are arranged above the base, the fixed plate is arranged at one side of the workbench, the front surface wall of the fixed plate is provided with a support plate, a fixed block is arranged above the base, a motor is arranged above the fixed block, a connecting block is arranged above the motor, an electric telescopic rod is arranged below the support plate, a rubber block is arranged below the electric telescopic rod, the drilling machine is provided with a power switch, the electric telescopic rod, the connecting block, the rubber block and the fixed block, the fixed block plays the role of fixing the motor, a user can start the electric telescopic rod through the power switch, the electric telescopic rod drives the rubber block to extrude in the connecting block above the motor, the motor is firmer, no looseness can occur, and the problem that the motor fixing effect, the problem of motor looseness is easily caused.

In view of the above-mentioned related art, when the horizontal drilling machine is used to drill a tubular workpiece, the operator needs to press the tubular workpiece with hands after placing the tubular workpiece on the worktable, and the stability of fixing the tubular workpiece is poor, which may result in a reduction in the accuracy of drilling, thereby deteriorating the quality of drilling.

SUMMERY OF THE UTILITY MODEL

In order to improve to the fixed stability of tubular workpiece, improve drilling accuracy and quality, this application provides a high machining precision drilling machine.

The application provides a high machining precision drilling machine adopts following technical scheme:

a drilling machine with high machining precision comprises a workbench, wherein a cutter assembly is arranged on the workbench, and a drill bit is arranged on the cutter assembly; the drill bit is arranged on the drill bit, the workbench is connected with a plurality of supporting frames in a sliding manner, the sliding direction of the supporting frames is perpendicular to the direction of the drill bit, and the workbench is provided with a driving assembly for driving the supporting frames to slide; each supporting frame is provided with a group of clamping assemblies, each group of clamping assemblies comprises a first air cylinder positioned in the supporting frame, a first connecting rod respectively hinged with a cylinder seat and a piston rod of the first air cylinder, a second connecting rod hinged with the first connecting rod, and a clamping plate fixedly connected with the second connecting rod; the two first connecting rods are hinged with the support frame, the two clamping plates slide oppositely along the upper surface of the support frame, and the sliding directions are parallel to the direction of the drill bit; first V type groove has all been seted up to the opposite side of two splint, and the tank bottom in first V type groove is mutually perpendicular with the direction of drill bit.

By adopting the technical scheme, the driving assembly is started, according to the length of the tubular workpiece, after the position of the support frame on the workbench is adjusted, an operator holds the tubular workpiece and places the tubular workpiece in the middle position of the two clamping plates of the group of clamping assemblies, the first air cylinder of the group of clamping assemblies is started, the piston rod of the first air cylinder extends, the two first connecting rods of the group of clamping assemblies rotate along the hinged point of the support frame, the two clamping plates of the group of clamping assemblies slide oppositely along the upper surface of the support frame until the first V-shaped grooves on the opposite sides of the two clamping plates clamp the tubular workpiece tightly, then the clamping process of other groups of clamping assemblies is carried out according to the operation, the tubular workpiece can be drilled through the drill bit on the cutter assembly, so that the stability of fixing the tubular workpiece is improved, and the drilling precision and quality are improved.

Optionally, the clamping assembly further includes a third connecting rod fixedly connected to the first connecting rod, a fourth connecting rod hinged to the third connecting rod, a sliding rod fixedly disposed inside the supporting frame, and a sleeve slidably connected to the outside of the sliding rod; the third connecting rod is positioned at the lower part of the hinged end of the first connecting rod and the supporting frame, and the fourth connecting rod is hinged at the outer side of the sleeve.

By adopting the technical scheme, the first cylinder is started, the piston rod of the first cylinder extends, the two first connecting rods rotate along the hinge point of the support frame, meanwhile, the first connecting rods drive the third connecting rods to rotate, so that one ends of the third connecting rods, far away from the first connecting rods, move downwards, the third connecting rods drive the fourth connecting rods to rotate and move downwards, and the fourth connecting rods drive the sleeves to slide downwards along the sliding rods; simultaneously, two splint slide in opposite directions along the upper surface of support frame, and until the first V type groove on two splint opposite sides presss from both sides the tubulose work piece tightly, make this clamping assembly have self-centering's effect to can realize the clamping process to tubulose work piece fast, and the clamping-force is stable, is favorable to improving the precision and the quality of drilling.

Optionally, the bottom of the connecting rod is bent towards the inside of the support frame.

Through adopting above-mentioned technical scheme, the bottom of connecting rod is crooked can shorten the movement distance of splint towards the inside of support frame, can realize pressing from both sides tight location to tubular workpiece fast to improve work efficiency.

Optionally, the support frame is equipped with two altogether, clamping component is equipped with two sets ofly altogether and is located the sharp both sides in drill bit place respectively, drive assembly includes two second cylinders, and two second cylinders are located one side that two support frames deviate from mutually respectively, and the jar seat of two second cylinders all with workstation fixed connection, the piston rod of two second cylinders respectively with two support frame fixed connection.

By adopting the technical scheme, the clamping assemblies on the two sides of the straight line where the drill bit is positioned can clamp the two ends of the tubular workpiece, so that the stress of the tubular workpiece during drilling is more balanced and stable; the two second cylinders can be used for positioning the two support frames, and then the two groups of clamping assemblies can be positioned.

Optionally, the opposite side of the drill bit on the workbench is provided with a tightening assembly, the tightening assembly comprises a fixing plate fixedly arranged on the workbench, a screw rod in threaded connection with the fixing plate, and a tightening plate rotationally connected with one end of the screw rod facing the drill bit, and the screw rod and the drill bit are parallel to each other.

By adopting the technical scheme, after the tubular workpiece is fixedly clamped by the clamping assembly, the screw rod is screwed, so that the screw rod drives the abutting plate to move towards the drill bit until the abutting plate and the tubular workpiece are abutted against each other, and then the drill bit is adopted to drill the tubular workpiece; in the drilling process, the drill bit can produce circumferential acting force on the tubular workpiece, the abutting plate can play a certain limiting role on the tubular workpiece, the tubular workpiece is prevented from being bent and deformed, and the drilling precision and quality are guaranteed.

Optionally, a second V-shaped groove is formed in one surface, facing the drill bit, of the abutting plate, and the shape and size of the second V-shaped groove are completely the same as those of the first V-shaped groove; and when the direction of the groove bottom of the second V-shaped groove is vertical to that of the drill bit, the groove bottom of the second V-shaped groove and the groove bottom of the first V-shaped groove are positioned on the same horizontal plane.

By adopting the technical scheme, after the tubular workpiece is fixedly clamped by the clamping assembly, the screw rod is screwed, the screw rod drives the abutting plate to move towards the drill bit, when the abutting plate is close to the tubular workpiece, the abutting plate is rotated by hand, the groove bottom of the second V-shaped groove is perpendicular to the direction of the drill bit until the abutting plate is abutted against the tubular workpiece, and then the drill bit can be used for drilling the tubular workpiece; the supporting plate is provided with a second V-shaped groove, the groove bottom of the second V-shaped groove and the groove bottom of the first V-shaped groove are located on the same horizontal plane, so that the second V-shaped groove and the first V-shaped groove can jointly play a role in fixing the tubular workpiece, the fixing effect is better, and the drilling precision and quality are higher.

Optionally, a hole corresponding to the position of the drill bit is formed in the second V-shaped groove, and the diameter of the hole is not smaller than that of the drill bit.

By adopting the technical scheme, when the through hole is required to be processed on the tubular workpiece, the drill bit can enter the hole channel formed in the second V-shaped groove because the diameter of the hole channel is not smaller than that of the drill bit, so that the through hole can be conveniently processed on the tubular workpiece, and the through hole cannot be processed on the tubular workpiece.

Optionally, a rotating hand wheel is fixedly arranged at one end of the screw rod, which is far away from the abutting plate.

By adopting the technical scheme, the contact area between the screw and the hand is greatly increased by rotating the hand wheel, so that an operator can conveniently rotate the screw to adjust the position of the abutting plate.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the driving assembly drives the supporting frame to realize the movement process of the clamping assembly, so that the two clamping plates of the clamping assembly slide oppositely along the upper surface of the supporting frame until the tubular workpiece is clamped by the first V-shaped grooves on the opposite sides of the two clamping plates, and the tubular workpiece can be drilled by the drill bit on the cutter assembly, thereby improving the stability of fixing the tubular workpiece and improving the drilling precision and quality;

2. the first connecting rod drives the third connecting rod to rotate, one end of the third connecting rod, far away from the first connecting rod, moves downwards, the third connecting rod drives the fourth connecting rod to rotate and move downwards, and the fourth connecting rod drives the sleeve to slide downwards along the sliding rod; meanwhile, the two clamping plates slide oppositely along the upper surface of the support frame until the first V-shaped grooves on the opposite sides of the two clamping plates clamp the tubular workpiece, so that the clamping assembly has an automatic centering effect, the clamping process of the tubular workpiece can be quickly realized, the clamping force is stable, and the precision and the quality of drilling are favorably improved;

3. through the arrangement that the second V-shaped groove is formed in the abutting plate and the groove bottom of the second V-shaped groove and the groove bottom of the first V-shaped groove are located on the same horizontal plane, the second V-shaped groove and the first V-shaped groove can jointly play a role in fixing the tubular workpiece, the fixing effect is better, and therefore the drilling precision and the drilling quality are higher.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

FIG. 3 is a schematic view of the construction of the highlighted clamp assembly.

Description of reference numerals: 1. a work table; 2. a cutter assembly; 21. a drill bit; 3. a support frame; 4. a drive assembly; 41. a second cylinder; 5. a clamping assembly; 51. a first cylinder; 52. a first connecting rod; 53. a second connecting rod; 54. a splint; 541. a first V-shaped groove; 55. a third connecting rod; 56. a fourth connecting rod; 57. a slide bar; 58. a sleeve; 6. a propping component; 61. a fixing plate; 62. a screw; 63. a propping plate; 631. a second V-shaped groove; 632. a duct; 7. the hand wheel is rotated.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses high machining precision drilling machine. Referring to fig. 1 and 2, the drilling machine includes a worktable 1, a tool assembly 2 is disposed on the worktable 1, and a drill 21 for drilling a tubular workpiece is disposed on the tool assembly 2. The worktable 1 is connected with two supporting frames 3 in a sliding way and respectively positioned at two sides of the straight line where the drill bit 21 is positioned. The sliding direction of the support frame 3 is perpendicular to the direction of the drill bit 21, and the workbench 1 is provided with a driving component 4 for driving the support frame 3 to slide, so that the sliding process of the support frame 3 is realized. Each support frame 3 is provided with a group of clamping components 5, so that two ends of the tubular workpiece are clamped through the two groups of clamping components 5. The opposite side of drill bit 21 is equipped with on workstation 1 and supports tight subassembly 6, can play limiting displacement to tubular workpiece, improves the stability fixed to tubular workpiece, and then improves the precision and the quality of drilling.

Referring to fig. 1, the driving assembly 4 includes two second cylinders 41, and the two second cylinders 41 are respectively and fixedly disposed on the sides of the two support frames 3 facing away from each other. And, the cylinder seat of two second cylinders 41 all with workstation 1 fixed connection, the piston rod of two second cylinders 41 respectively with two support frame 3 fixed connection to realize that second cylinder 41 drives support frame 3 and moves along the upper surface of workstation 1, realize the direction mutually perpendicular of the direction of motion of support frame 3 and drill bit 21, finally realize pressing from both sides tightly tubular workpiece of different length through two sets of clamping components 5.

Referring to fig. 1 and 3, each set of clamping assemblies 5 includes a first cylinder 51 located inside the supporting frame 3, a first connecting rod 52 hinged to a cylinder base and a piston rod of the first cylinder 51, respectively, a second connecting rod 53 hinged to an end of the first connecting rod 52 far away from the first cylinder 51, and a clamping plate 54 fixedly connected to an end of the second connecting rod 53 far away from the first connecting rod 52.

Referring to fig. 1 and 3, the middle portions of the two first connecting rods 52 are hinged to the supporting frame 3, and the two clamping plates 54 slide along the upper surface of the supporting frame 3 in opposite directions, and the sliding directions are parallel to the direction of the drill bit 21. When the piston rod of the first cylinder 51 extends, the two first connecting rods 52 are driven to rotate along the hinge point of the supporting frame 3, so that the two clamping plates 54 can slide along the upper surface of the supporting frame 3 in opposite directions.

Referring to fig. 1 and 3, the opposite sides of the two clamping plates 54 are both provided with first V-shaped grooves 541, the groove bottoms of the first V-shaped grooves 541 are perpendicular to the direction of the drill 21, and when the two clamping plates 54 slide to the first V-shaped grooves 541 on the opposite sides of the two clamping plates 54 in opposite directions to clamp the tubular workpiece, the clamping process of the clamping plates 54 on the tubular workpiece can be realized.

Referring to fig. 1 and 3, the clamping assembly 5 further includes a third connecting rod 55 fixedly connected to the first connecting rod 52, a fourth connecting rod 56 hinged to an end of the third connecting rod 55 away from the first connecting rod 52, a sliding rod 57 fixedly disposed inside the supporting frame 3, and a sleeve 58 slidably connected to an outer portion of the sliding rod 57.

Referring to fig. 1 and 3, the third connecting rod 55 is located at the lower portion of the hinged end of the first connecting rod 52 and the supporting frame 3, the fourth connecting rod 56 is hinged to the outside of the sleeve 58, and the two fourth connecting rods 56 are located at the opposite sides of the sleeve 58 in the circumferential direction, so that the third connecting rod 55 can rotate together with the first connecting rod 52. Meanwhile, one end of the third connecting rod 55, which is far away from the first connecting rod 52, and the fourth connecting rod 56 move downwards, so that the sleeve 58 slides downwards along the sliding rod 57, the two clamping plates 54 slide oppositely on the support frame 3 until the first V-shaped grooves 541 in the two clamping plates 54 clamp the tubular workpiece, the purpose of automatic centering is achieved, and the stability of clamping the tubular workpiece is improved.

Referring to fig. 1 and 3, in order to shorten the moving distance of the clamping plate 54, the bottom of each connecting rod is bent towards the inside of the supporting frame 3, so that the clamping and positioning process of the tubular workpiece is conveniently and quickly realized.

Referring to fig. 1 and 2, the tightening assembly 6 includes a fixing plate 61 fixed on the working table 1, a screw 62 in threaded connection with the fixing plate 61, and a tightening plate 63 rotatably connected with one end of the screw 62 facing the drill 21. The fixing plate 61 is located on the opposite side of the drill bit 21 on the workbench 1, the screw 62 is parallel to the drill bit 21, and the rotating hand wheel 7 is fixedly arranged at one end of the screw 62 far away from the abutting plate 63. The rotating hand wheel 7 is screwed to rotate the screw rod 62, so that the abutting plate 63 can be driven to move towards the drill bit 21, and the abutting plate 63 and the tubular workpiece can be abutted to each other.

Referring to fig. 2, in order to improve the limiting effect of the tightening plate 63 on the tubular workpiece, a second V-shaped groove 631 is formed in a surface of the tightening plate 63 facing the drill 21, and the shape and size of the second V-shaped groove 631 are completely the same as those of the first V-shaped groove 541. When the abutting plate 63 approaches the tubular workpiece, the abutting plate 63 is rotated; and when the direction of the groove bottom of the second V-shaped groove 631 is perpendicular to the direction of the drill 21, the groove bottom of the second V-shaped groove 631 and the groove bottom of the first V-shaped groove 541 are located on the same horizontal plane, so as to further fix the tubular workpiece by the abutting plate 63.

Referring to fig. 2, the second V-shaped groove 631 is provided with a hole 632 corresponding to the drill bit 21, and the diameter of the hole 632 is larger than that of the drill bit 21, so that the drill bit 21 can enter the hole 632 of the second V-shaped groove 631, thereby facilitating the processing of a through hole in a tubular workpiece.

The implementation principle of the high-machining-precision drilling machine in the embodiment of the application is as follows: firstly, starting the second air cylinder 41, adjusting the position of the support frame 3 on the workbench 1 according to the length of the tubular workpiece, and then holding the tubular workpiece by an operator and placing the tubular workpiece at the middle position of the two clamping plates 54 of one group of clamping assemblies 5; then, the first air cylinder 51 of the group of clamping assemblies 5 is started, the piston rod of the first air cylinder 51 extends, so that the two first connecting rods 52 of the group of clamping assemblies 5 rotate along the hinge point of the support frame 3, meanwhile, the first connecting rod 52 drives the third connecting rod 55 to rotate, so that one end of the third connecting rod 55, which is far away from the first connecting rod 52, moves downwards, the third connecting rod 55 drives the fourth connecting rod 56 to rotate and move downwards, and the fourth connecting rod 56 drives the sleeve 58 to slide downwards along the sliding rod 57; meanwhile, the two clamping plates 54 slide oppositely along the upper surface of the support frame 3 until the first V-shaped grooves 541 on the opposite sides of the two clamping plates 54 clamp the tubular workpiece; then, the clamping process of the other set of clamping assemblies 5 is carried out according to the above operation; finally, the rotating hand wheel 7 is screwed to rotate the screw rod 62, the abutting plate 63 is driven to move towards the drill bit 21, when the abutting plate 63 is close to the tubular workpiece, the abutting plate 63 is rotated by hand, the groove bottom of the second V-shaped groove 631 is perpendicular to the direction of the drill bit 21 until the abutting plate 63 is abutted to the tubular workpiece, and the drill bit 21 can be used for drilling the tubular workpiece.

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. The utility model provides a high machining precision drilling machine, includes workstation (1), be equipped with cutter unit (2) on workstation (1), be equipped with drill bit (21) on cutter unit (2), its characterized in that: the drill bit drilling machine is characterized in that the workbench (1) is connected with a plurality of support frames (3) in a sliding mode, the sliding direction of the support frames (3) is perpendicular to the direction of the drill bit (21), and a driving assembly (4) for driving the support frames (3) to slide is arranged on the workbench (1); each supporting frame (3) is provided with a group of clamping assemblies (5), each group of clamping assemblies (5) comprises a first air cylinder (51) positioned inside the supporting frame (3), a first connecting rod (52) respectively hinged with a cylinder seat and a piston rod of the first air cylinder (51), a second connecting rod (53) hinged with the first connecting rod (52), and a clamping plate (54) fixedly connected with the second connecting rod (53); the two first connecting rods (52) are hinged with the support frame (3), the two clamping plates (54) slide oppositely along the upper surface of the support frame (3), and the sliding directions are parallel to the direction of the drill bit (21); the opposite sides of the two clamping plates (54) are respectively provided with a first V-shaped groove (541), and the groove bottoms of the first V-shaped grooves (541) are perpendicular to the direction of the drill bit (21).

2. The high-machining-precision drilling machine according to claim 1, wherein: the clamping assembly (5) further comprises a third connecting rod (55) fixedly connected with the first connecting rod (52), a fourth connecting rod (56) hinged with the third connecting rod (55), a sliding rod (57) fixedly arranged in the support frame (3), and a sleeve (58) connected to the outer part of the sliding rod (57) in a sliding manner; the third connecting rod (55) is positioned at the lower part of the hinged end of the first connecting rod (52) and the support frame (3), and the fourth connecting rod (56) is hinged at the outer side of the sleeve (58).

3. The high-machining-precision drilling machine according to claim 2, wherein: the bottom of the connecting rod is bent towards the inside of the supporting frame (3).

4. The high-machining-precision drilling machine according to claim 3, wherein: clamping component (5) are equipped with two sets ofly altogether and are located the both sides of drill bit (21) place straight line respectively, support frame (3) are equipped with two altogether, drive assembly (4) include two second cylinders (41), and one side that two support frames (3) deviate from mutually is located respectively to two second cylinders (41), and the jar seat of two second cylinders (41) all with workstation (1) fixed connection, the piston rod of two second cylinders (41) respectively with two support frames (3) fixed connection.

5. The high-machining-precision drilling machine according to claim 1, wherein: the opposite side of drill bit (21) is equipped with on workstation (1) and supports tight subassembly (6), support tight subassembly (6) including set firmly fixed plate (61) on workstation (1), screw rod (62) with fixed plate (61) threaded connection to and with screw rod (62) towards the tight board (63) of supporting of the one end rotation connection of drill bit (21), screw rod (62) are parallel to each other with the direction of drill bit (21).

6. The high-machining-precision drilling machine according to claim 5, wherein: one surface of the abutting plate (63) facing the drill bit (21) is provided with a second V-shaped groove (631), and the shape and the size of the second V-shaped groove (631) are completely the same as those of the first V-shaped groove (541); when the direction of the groove bottom of the second V-shaped groove (631) is perpendicular to the direction of the drill bit (21), the groove bottom of the second V-shaped groove (631) and the groove bottom of the first V-shaped groove (541) are positioned on the same horizontal plane.

7. The high-machining-precision drilling machine according to claim 6, wherein: the second V-shaped groove (631) is provided with a pore canal (632) corresponding to the position of the drill bit (21), and the diameter of the pore canal (632) is not less than that of the drill bit (21).

8. The high-machining-precision drilling machine according to claim 6, wherein: and a rotating hand wheel (7) is fixedly arranged at one end of the screw rod (62) far away from the abutting plate (63).