CN212793939U

CN212793939U - Clamping tool for machining superfine drill bit

Info

Publication number: CN212793939U
Application number: CN202021854933.4U
Authority: CN
Inventors: 陈相国
Original assignee: Qingdao Qiangsheng Machinery Co ltd
Current assignee: Qingdao Qiangsheng Machinery Co ltd
Priority date: 2020-08-30
Filing date: 2020-08-30
Publication date: 2021-03-26
Anticipated expiration: 2030-08-30

Abstract

The utility model discloses a processing clamping instrument for superfine drill bit, which comprises a base, the top of base rotationally is provided with the circular shape workstation, and the upper surface of workstation still is provided with the support ring, wears to be equipped with a plurality of bracing pieces on the support ring lateral wall, still is provided with guiding mechanism in the support ring, and guiding mechanism is used for adjusting the size that the bracing piece stretches out the outer length of support ring, and the surface of base still is provided with the backup pad, rotationally is provided with the card that is used for holding the drill chuck in the through-hole in the backup pad and holds the mechanism, and the outside of holding the mechanism is provided with and is used for driving. The utility model discloses a clamping instrument can realize treating the continuous processing of processing drill bit, has improved work efficiency to reduce workman's intensity of labour, in addition through the design to actuating mechanism, can realize that the drill bit chuck drives the intermittent type formula of treating the processing drill bit rotatory, can satisfy the demand of different processing methods such as cutting, polishing and polishing, improved the suitability of this clamping instrument.

Description

Clamping tool for machining superfine drill bit

Technical Field

The utility model relates to an ultra-fine drill bit processing technology field especially relates to a clamping instrument for processing ultra-fine drill bit.

Background

The process of superfine drill bit processing often involves cutting, many processes such as polishing and polishing, often in the current course of working be that the workman manually grips the drill bit and carry out various processing, greatly increased workman's intensity of labour, and if the drill bit accident collapses absolutely then probably causes certain injury to the operation workman in the in-process of processing, current clamping instrument also is only to a process, when carrying out different man-hour, then often need use different clamping instrument, need dismantle the drill bit from the instrument and install again on other clamping instrument, if involve and adjust the complexity that can further increase clamping work well, consequently, this kind of clamping work suitability is low also can further influence machining efficiency and machining precision.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model discloses a semi-automatic clamping tool for processing superfine drill bits with strong applicability, which reduces the labor intensity of workers, and comprises a base, a circular workbench is rotatably arranged above the base, a support ring is fixedly arranged above the workbench, a plurality of first through holes are arranged on the support ring along the radial direction of the workbench, the first through holes are arranged along the axis circumference of the workbench, a plurality of support rods are also arranged on the upper surface of the workbench, a support boss is arranged at one end of each support rod, which is far away from the support boss, extends out of the first through hole and is arranged towards the direction far away from the center of the workbench, the support rods can slide and move in the first through holes, and a drill bit chuck is sleeved at one end of each support rod, which extends out of the support ring, the utility model discloses a drill chuck, including support ring, bracing piece, support ring, guiding mechanism, supporting plate, bracing piece, the inboard of support ring still is provided with guiding mechanism, guiding mechanism is used for adjusting the bracing piece stretches out the size of the outer length of support ring, the surface of base still is provided with the backup pad, be provided with the second through-hole in the backup pad, the bracing piece can the sliding movement in the second through-hole, rotationally be provided with in the second through-hole and be used for the card to hold the mechanism is held to the card of drill chuck, the outside of.

As the utility model discloses technical scheme's an alternative, guiding mechanism includes that a plurality of fixes the inboard adjustment spring of support ring, the bracing piece is worn to establish the inside of adjustment spring, the adjustment spring is kept away from the one end of support ring with support boss fixed connection, guiding mechanism still includes the adjustment cam, the centre bore of adjustment cam is worn to establish on the central axostylus axostyle, the outside and a plurality of the support boss of bracing piece are inconsistent, but the central axostylus axostyle is intermittent type under the external drive rotates.

As the utility model discloses technical scheme's an alternative, be in on the workstation the position that the central axostylus axostyle corresponds is provided with the third through-hole, the central axostylus axostyle passes the third through-hole orientation the base sets up, be provided with in the base and be used for the drive the first motor of central axostylus axostyle pivoted, the workstation is rotationally established on the central axostylus axostyle, still be provided with the drive in the base workstation pivoted second motor, the fixed first gear that is provided with on the output shaft of second motor, be provided with annular rack on the lateral surface of workstation, first gear with annular rack toothing.

As the utility model discloses technical scheme's an alternative, be provided with the support frame on the base, the support frame sets up the top of adjustment cam, on the support frame with the central pin corresponding position is provided with the fourth through-hole, the central pin is upwards worn out the fourth through-hole, still be provided with on the support frame and be used for the drive the central pin pivoted first motor, be provided with in the base and be used for the drive workstation pivoted second motor, the output shaft of second motor passes through the center pin department of workstation set up the third through-hole with workstation fixed connection.

As the utility model discloses technical scheme's an alternative, card is held the mechanism and is in including rotationally setting up card in the second through-hole is held the ring, the inboard edge of holding the ring is held the axial circumference arrangement of holding the ring has a plurality of cards to hold the strip, drill chuck's outer wall with card is held the strip and is provided with a plurality of cards and hold the groove, drill chuck's inner wall is provided with a plurality of spacing grooves, on the bracing piece with the spacing groove correspondence is provided with a plurality of spacing strips, card is held the mechanism and still includes elastic buckle, elastic buckle sets up drill chuck's outside, still be provided with on drill chuck's the lateral wall and be used for holding elastic buckle's buckle groove.

As the utility model discloses technical scheme's an alternative, actuating mechanism includes that fixed cover establishes the ratchet in the card is held the ring outside, one side of ratchet is provided with the drive pawl, the drive pawl rotationally sets up an angle department at the drive set-square, another angle department of drive set-square rotationally is connected with crank rocker mechanism's rocker, crank rocker mechanism's crank rotationally sets up in the backup pad, the crank is kept away from one side of rocker is connected with the outside drive device in order to realize the drive to the ratchet, the third angle of drive set-square pass through the connecting piece with the backup pad is articulated to be connected, the ratchet is kept away from still be provided with the brake pawl in the backup pad of drive pawl one side.

As the utility model discloses technical scheme's an alternative, the upper portion of base still is provided with a plurality of supporting rollers, supporting roller includes the mount and rotates the wheel, the mount is fixed the base orientation the one side of workstation, it erects to rotate the wheel rotatable on the mount, rotate the wheel with the workstation orientation the one side of base is inconsistent.

The utility model has the advantages that:

the utility model discloses a clamping instrument that processing superfine drill bit was used, can cup joint a plurality of drill bit chucks that are equipped with and wait to process the drill bit on a plurality of bracing pieces respectively at the in-process of in-service use, through processing beat and guiding mechanism beat, the coordination between the workstation rotates, can realize waiting to process the continuous processing of drill bit, the work efficiency is improved, and workman's intensity of labour has been reduced, in addition through the design to actuating mechanism, can realize that the drill bit chuck drives the intermittent type formula rotation of waiting to process the drill bit, can satisfy the cutting, the demand of different processing methods such as polishing and polishing, the suitability of this clamping instrument has been improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.

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

Fig. 3 is a schematic structural view of a drill chuck according to embodiment 1 of the present invention.

Fig. 4 is a schematic view of a state where the drill chuck is held by the holding mechanism according to the novel embodiment 1.

Fig. 5 is a partially enlarged view of B in fig. 4.

Fig. 6 is a left side view of the structure schematic diagram of embodiment 1 of the present invention.

Fig. 7 is a partial enlarged view at C in fig. 6.

Fig. 8 is a schematic structural view of embodiment 2 of the present invention.

Reference numerals:

10-a base; 11-a support plate; 112-support rollers; 121-a fixing frame; 122-a rotating wheel; 13-a support frame; 20-a workbench; 21-a support ring; 22-a first gear; 23-ring rack; 30-a support bar; 31-a support boss; 32-a limit bar; 40-a drill chuck; 41-a holding groove; 42-a limit groove; 43-a snap groove; 50-an adjustment mechanism; 51-an adjustment spring; 52-adjusting the cam; 53-central shaft; 60-a catch mechanism; 61-a retaining ring; 611-holding strip; 62-elastic buckle; 70-a drive mechanism; 71-ratchet wheel; 72-a drive pawl; 73-driving the set square; 74-crank and rocker mechanism; 741-rocker; 742-a crank; 75-a brake pawl; 80-drill bit to be processed.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the description of the embodiments, the terms "disposed," "connected," and the like are to be construed broadly unless otherwise explicitly specified or limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; either directly or through an intervening medium, or through internal communication between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

In the case of the example 1, the following examples are given,

as shown in fig. 1 and fig. 2, the utility model discloses a clamping tool for processing ultra-fine drill bits, which comprises a base 10, a circular worktable 20 is rotatably arranged above the base 10, a supporting ring 21 is fixedly arranged above the worktable 20, a plurality of first through holes are arranged on the supporting ring along the radial direction of the worktable, the plurality of first through holes are arranged along the axis circumference of the worktable 20, a plurality of supporting rods 30 are further arranged on the upper surface of the worktable 20, a supporting boss 31 is arranged at one end of each supporting rod 30, which is far away from the supporting boss 31, extends out of the first through hole and is arranged towards the direction far away from the center of the worktable 20, the supporting rods 30 can slide and move in the first through holes, a drill chuck 40 is sleeved at one end of each supporting rod 30, which extends out of the supporting ring 21, an adjusting mechanism 50 is further arranged on the inner side of the supporting ring 21, the adjusting, the surface of the base 10 is further provided with a supporting plate 11, the supporting plate 11 is provided with a second through hole, the supporting rod 30 can slide and move in the second through hole, a clamping mechanism 60 for clamping the drill chuck 40 is rotatably arranged in the second through hole, and a driving mechanism 70 for driving the clamping mechanism 60 to rotate is arranged outside the clamping mechanism 60.

The drill bit 80 to be processed is fixed in the drill bit chuck 40, the drill bit chuck on which the drill bit 80 to be processed is fixed is sleeved on the support rod 30, the support rod 30 is driven by the workbench 20 to rotate towards the direction of the support plate 11, when the support rod 30 and the second through hole rotate to the same axis, the rotation is stopped, at this time, the drill bit chuck 40 with the drill bit 70 to be processed, which is sleeved on the support rod 30, extends to the outside of the support ring 21 to the second through hole under the action of the adjusting mechanism 50 and further extends out of the clamping mechanism 60 and the driving mechanism 70, after the support rod extends to the processing position, the support rod 30 retracts under the action of the adjusting mechanism 50, the drill bit chuck 40 is fixed in the clamping mechanism 60, the drill bit 70 to be processed can be processed at multiple angles by rotating under the driving of the driving mechanism 70, after the processing is completed, the drill bit chuck 40 can be, and then the drill bit after being processed is taken out, the drill bit 80 to be processed is arranged in the drill bit chuck 40 and then is sleeved on the supporting rod 30 again, so that the continuous processing can be realized, and the production efficiency is improved.

The adjustment of the length of the support rod 30 extending out of the support ring 21 can be in various forms, for example, each support rod 30 can be fixed on the top of a piston rod driven by a cylinder, and the like, and the drill chuck 40 sleeved on the top of the support rod 30 can be fed into the clamping mechanism 60 no matter what form is adopted, so as to realize the processing of the drill 70 to be processed, the adjustment mechanism 50 provided by the scheme comprises a plurality of adjustment springs 51 fixed on the inner side of the support ring 21, the support rod 30 is arranged inside the adjustment springs 51 in a penetrating manner, one end of the adjustment springs 51 far away from the support ring 21 is fixedly connected with the support bosses 31, the adjustment mechanism further comprises an adjustment cam 52, a central hole of the adjustment cam 52 is arranged on the central shaft rod 53 in a penetrating manner, the outer side of the adjustment cam 52 is abutted against the support bosses 31 of the plurality of support rods 30, the central shaft rod 53 can rotate intermittently under, the support rod 30 can reciprocate in the second through hole under the action of the adjusting cam 52 and the adjusting spring 51, so that the support rod 30 sends the drill chuck 40 into the clamping mechanism 50, the adjusting cam 52 is continuously rotated, the support rod 30 without the drill chuck 40 returns under the action of the adjusting spring 51, and the drill chuck 40 with the drill 80 to be processed is continuously sleeved in the next working position along with the rotation of the workbench 20.

The central shaft rod 53 can rotate intermittently under external drive, the rotation of the workbench 20 is asynchronous with the rotation of the central shaft rod 53, in practical operation, various drive modes can be selected, even the mode of manually rotating the workbench 20 can be used for realizing that the workbench drives the support rod 30 to move, in the embodiment, a third through hole is arranged on the workbench 20 at the position corresponding to the central shaft rod 53, the central shaft rod 53 passes through the third through hole and is arranged towards the base 10, a first motor for driving the central shaft rod 53 to rotate is arranged in the base 10, the workbench 20 can be rotatably sleeved on the central shaft rod 53 and can be realized by a bearing and the like, the workbench 20 can rotate relative to the central shaft rod 53 to realize asynchronous rotation of the workbench 20 and the central shaft rod 53, a second motor for driving the workbench 20 to rotate is also arranged in the base 10, a first gear 22 is fixedly arranged on an output shaft of the second motor, an annular rack 23 is arranged on the outer side surface of the workbench, and the first gear 22 is meshed with the annular rack 23 to drive the workbench 20.

The retaining mechanism 60 is provided to fix the drill chuck 40, one of which is to prevent the drill chuck 40 from being brought back by the support rod 30 retracting, and the other is to fix the drill chuck 40 during the processing process to prevent the drill chuck 40 from rotating, in the present embodiment, as shown in fig. 3 to 5, the retaining mechanism 60 includes a retaining ring 61 rotatably disposed in the second through hole, a plurality of retaining strips 611 are disposed on an inner side of the retaining ring 61 along an axial circumference of the retaining ring, a plurality of retaining grooves 41 are disposed on an outer wall of the drill chuck 40 corresponding to the retaining strips, a plurality of limiting grooves 42 are disposed on an inner wall of the drill chuck 40, a plurality of limiting strips 32 are disposed on the support rod 30 corresponding to the limiting grooves 42, during the actual operation process, the drill chuck 40 is sleeved on the support rod 30, so that the limiting strips 32 are retained in the limiting grooves 42, when the drill chuck 40 is pushed into the retaining mechanism 60, the corresponding holding bars 611 are exactly aligned with the holding grooves 41, so that the drill chuck 40 can be accurately positioned, the rotation of the drill chuck 40 in the holding mechanism 60 is limited by the holding bars 611 and the holding grooves 41, the holding mechanism 60 further comprises an elastic buckle 62, the elastic buckle 62 is arranged outside the drill chuck 40, and the outer side wall of the drill chuck is further provided with a buckle groove 43 for accommodating the elastic buckle.

The driving mechanism 70 is arranged to make the chuck mechanism 60 drive the drill chuck 40 to rotate to realize the processing of the full angle of the circumference of the drill 80 to be processed, in the actual operation, especially in the grinding process, the processing of the full angle of the circumference is realized by manually rotating the drill chuck 40, and the rotation of the chuck mechanism 60 can also be realized by using a transmission member such as a gear, etc., in this embodiment, the driving mechanism 70 includes a ratchet wheel 71 fixedly sleeved outside the chuck ring 61, one side of the ratchet wheel 71 is provided with a driving pawl 72, the driving pawl 72 is rotatably arranged at one corner of a driving triangular plate 73, the other corner of the driving triangular plate 73 is rotatably connected with a rocker 741 of a crank-rocker mechanism 74, a crank 742 of the crank-rocker mechanism 74 is rotatably arranged on the supporting plate 11, one side of the crank 742, which is far away from the rocker 741, is connected with an external driving, the third angle of the driving triangle 73 is hinged with the support plate 11 through a connecting piece, and a braking pawl 75 is further arranged on the support plate 11 at the side of the ratchet wheel 71 far away from the driving pawl 72. The external driving device can select a motor and other mechanisms capable of realizing driving, and a person skilled in the art can select the motor according to actual requirements, so that details are not repeated here, and under the driving of external driving, the cooperation of the driving pawl 72, the ratchet wheel 71 and the braking pawl 75 can realize full-angle intermittent rotation of the drill bit 80 to be processed, so that the requirements of different processing modes such as cutting, grinding and polishing can be met.

In order to ensure the stability of the workbench 20 during the rotation process, as shown in fig. 6 and 7, a plurality of supporting rollers 12 are further disposed on the upper portion of the base 10, each supporting roller includes a fixed frame 121 and a rotating wheel 122, the fixed frame 121 is fixed on a surface of the base 10 facing the workbench 20, the rotating wheel 122 is rotatably mounted on the fixed frame 121, and the rotating wheel 122 abuts against a surface of the workbench 20 facing the base 10.

In the case of the example 2, the following examples are given,

as shown in fig. 8, the present embodiment is different from embodiment 1 only in the driving manner of the central shaft 53 and the worktable 10, in the present embodiment, the supporting frame 13 is disposed on the base 10, the supporting frame 13 is disposed above the adjustment cam 52, the supporting frame 13 is disposed with a fourth through hole 131 at a position corresponding to the central shaft 53, the central shaft penetrates upward through the fourth through hole 131, at this time, a first click for driving the central shaft 53 to rotate is disposed on the supporting frame 13, a second motor for driving the worktable 20 to rotate is disposed in the base 10, and an output shaft of the second motor is fixedly connected to the third through hole provided at the central axis of the worktable 10, so as to realize direct driving of the worktable 10. The remaining connection manner and operation principle in this embodiment are the same as those in embodiment 1, and are not described herein again.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization of those skilled in the art; when the technical solutions are contradictory or cannot be combined, the combination of the technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

Claims

1. A clamping tool for machining superfine drill bits is characterized by comprising a base, wherein a circular workbench is rotatably arranged above the base, a support ring is fixedly arranged above the workbench, a plurality of first through holes are radially formed in the support ring along the workbench and are distributed along the axis circumference of the workbench, a plurality of support rods are further arranged on the upper surface of the workbench, a support boss is arranged at one end of each support rod, far away from the support boss, extends out of the first through hole and faces the direction far away from the center of the workbench, the support rods can slide in the first through holes, a drill bit chuck is sleeved at one end, extending out of the support ring, of each support rod, an adjusting mechanism is further arranged on the inner side of the support ring and used for adjusting the length of the support rods, extending out of the support ring, the drill chuck clamping device is characterized in that a supporting plate is further arranged on the surface of the base, a second through hole is formed in the supporting plate, the supporting rod can slide in the second through hole, a clamping mechanism used for clamping the drill chuck is rotatably arranged in the second through hole, and a driving mechanism used for driving the clamping mechanism to rotate is arranged outside the clamping mechanism.

2. The clamping tool for machining the ultra-fine drill bit as claimed in claim 1, wherein the adjusting mechanism comprises a plurality of adjusting springs fixed on the inner side of the support ring, the support rods are arranged inside the adjusting springs in a penetrating manner, one end of each adjusting spring, far away from the support ring, is fixedly connected with the support bosses, the adjusting mechanism further comprises an adjusting cam, a central hole of the adjusting cam is arranged on a central shaft rod in a penetrating manner, the outer side of the adjusting cam is abutted against the support bosses of the plurality of support rods, and the central shaft rod can rotate intermittently under external driving.

3. The clamping tool for machining the ultrafine drill according to claim 2, wherein a third through hole is formed in the workbench at a position corresponding to the central shaft rod, the central shaft rod penetrates through the third through hole and is arranged towards the base, a first motor for driving the central shaft rod to rotate is arranged in the base, the workbench is rotatably sleeved on the central shaft rod, a second motor for driving the workbench to rotate is further arranged in the base, a first gear is fixedly arranged on an output shaft of the second motor, an annular rack is arranged on an outer side surface of the workbench, and the first gear is meshed with the annular rack.

4. The clamping tool for machining the superfine drill bit as claimed in claim 2, wherein the base is provided with a support frame, the support frame is arranged above the adjusting cam, a fourth through hole is formed in the support frame at a position corresponding to the central shaft, the central shaft penetrates upwards out of the fourth through hole, the support frame is further provided with a first motor for driving the central shaft to rotate, the base is internally provided with a second motor for driving the workbench to rotate, and an output shaft of the second motor is fixedly connected with the workbench through a third through hole formed in the central shaft of the workbench.

5. The clamping tool for machining the ultrafine drill according to claim 1, wherein the clamping mechanism comprises a clamping ring rotatably disposed in the second through hole, a plurality of clamping bars are disposed on an inner side of the clamping ring along an axial circumference of the clamping ring, a plurality of clamping grooves are disposed on an outer wall of the drill chuck corresponding to the clamping bars, a plurality of limiting grooves are disposed on an inner wall of the drill chuck, a plurality of limiting bars are disposed on the support rod corresponding to the limiting grooves, the clamping mechanism further comprises an elastic buckle disposed outside the drill chuck, and a buckle groove for accommodating the elastic buckle is disposed on an outer side wall of the drill chuck.

6. The clamping tool for machining the superfine drill bit as claimed in claim 5, wherein the driving mechanism comprises a ratchet wheel fixedly sleeved on the outer side of the clamping ring, a driving pawl is arranged on one side of the ratchet wheel, the driving pawl is rotatably arranged at one corner of the driving triangular plate, the other corner of the driving triangular plate is rotatably connected with a rocker of a crank-rocker mechanism, a crank of the crank-rocker mechanism is rotatably arranged on the supporting plate, one side of the crank, which is far away from the rocker, is connected with an external driving device to drive the ratchet wheel, a third corner of the driving triangular plate is hinged with the supporting plate through a connecting piece, and a braking pawl is further arranged on the supporting plate, which is far away from the driving pawl.

7. The clamping tool for machining the ultrafine drill bit according to claim 1, wherein a plurality of supporting rollers are further arranged on the upper portion of the base, each supporting roller comprises a fixing frame and a rotating wheel, the fixing frame is fixed on one surface, facing the workbench, of the base, the rotating wheels are rotatably erected on the fixing frames, and the rotating wheels are abutted to one surface, facing the base, of the workbench.