CN210024520U - Workpiece fixing clamp for axial deep hole rotary drilling - Google Patents
Workpiece fixing clamp for axial deep hole rotary drilling Download PDFInfo
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- CN210024520U CN210024520U CN201920778115.1U CN201920778115U CN210024520U CN 210024520 U CN210024520 U CN 210024520U CN 201920778115 U CN201920778115 U CN 201920778115U CN 210024520 U CN210024520 U CN 210024520U
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- deep hole
- axial deep
- drilling
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- 238000005553 drilling Methods 0.000 title claims abstract description 39
- 238000003825 pressing Methods 0.000 claims description 27
- 230000007246 mechanism Effects 0.000 claims description 15
- 230000001681 protective effect Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 4
- 238000012797 qualification Methods 0.000 abstract description 5
- 230000035515 penetration Effects 0.000 abstract description 3
- 238000012545 processing Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- Drilling And Boring (AREA)
Abstract
The utility model discloses a work piece mounting fixture of axial deep hole rotation drilling, the technical problem of solution: the technical problem that the axial deep hole drilling tool is applicable to drilling of axial deep holes in the cylinder wall of an inner cylinder body of a hand-held pneumatic tool air pick in the prior art and applicable to a workpiece fixing clamp used on a drilling machine is solved. According to the technical scheme, the workpiece fixing clamp for axial deep hole rotary drilling comprises a rotating unit and a clamping unit, wherein the clamping unit is arranged on the rotating unit. The advantages are that: the workpiece fixing clamp for the rotary drilling of the axial deep hole enables the cylinder body to rotate at a low speed around the axis center of the processed hole while the drill bit of the main shaft of the drilling machine drills the axial deep hole at a high speed in a rotary manner, so that the axis of the drilled hole is not easy to incline to cause wall penetration, and the qualification rate is improved.
Description
Technical Field
The utility model relates to a tooling equipment for machining specifically is the drilling of the axial deep hole that is located on the cylinder body section of thick bamboo wall to on the cylinder body in the cylinder body to hand-held type pneumatic tool pneumatic pick.
Background
The rock drilling equipment is mainly used for breaking soft ores, breaking firm or cement buildings, mining clay and the like, and is mainly a pneumatic rock drilling tool. The cylinder body related to the design is one of main parts of the hand-held pneumatic tool air pick. The part is a cylinder body part, and has multiple processing procedures, wherein the axial deep hole on the cylinder wall of the cylinder body is processed on a drilling machine, and the cylinder wall is thin and is easy to penetrate through the wall during processing to cause scrapping. In order to improve the qualification rate of finished products, it is necessary to design a practical tool for processing the axial deep hole of the cylinder body.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that lack among the prior art to mention among the background art and be applicable to the drilling to the axial deep hole on hand-held type pneumatic tool pneumatic pick inner cylinder body section of thick bamboo wall and be applicable to the work piece mounting fixture's that uses on the drilling machine technical problem.
The utility model adopts the technical proposal that: a workpiece fixing clamp for axial deep hole rotary drilling comprises a rotating unit and a clamping unit, wherein the clamping unit is arranged on the rotating unit;
the rotating unit comprises a fixed seat, a rotating shaft and a driving mechanism, the rotating shaft is perpendicular to the fixed seat, and the driving mechanism is arranged on the fixed seat and drives the rotating shaft; the fixing seat comprises a base and a hollow upright post, the base is horizontally arranged, and the hollow upright post is perpendicular to the base and is fixedly connected with the base; the rotating shaft is a stepped shaft and comprises a lower rotating shaft section and an upper disc-shaped shaft shoulder section, the rotating shaft section is rotatably arranged in the hollow upright column, and a positioning column is convexly arranged at the central position of the end surface of the disc-shaped shaft shoulder section; the driving mechanism comprises a motor, a driving gear and a driven gear, the motor is fixed on the upper end face of the hollow upright post through a motor support, a motor shaft of the motor is vertical, the driving gear is arranged on the motor shaft of the motor and is meshed with the driven gear, the driven gear is sleeved in the positioning post and is fixed on the end face of the disc-shaped shaft shoulder section, and the ratio of the number of teeth of the driving gear to the number of teeth of the driven gear is less than 1;
the clamping unit comprises an installation platform and a clamping device, the clamping device is arranged on the installation platform,
the mounting platform comprises a chassis, an upright post and two V-shaped blocks, the chassis is in a disc shape, and a chassis center circular hole matched with the positioning post for centering is formed in the center of the chassis; the chassis is connected with a driven gear; the upright post is eccentrically and vertically arranged on the upper end surface of the chassis, the surface of the upright post facing to the central line of the chassis is defined as a back surface, and the surface far away from the central line of the chassis is defined as a front surface; a guide rail is arranged on the back surface of the upright column along the length direction of the upright column, and the upright column is symmetrically arranged by taking the guide rail as a symmetrical plane; the two V-shaped blocks are vertically arranged on the back surface of the upright post, and both the two V-shaped blocks are in sliding fit with the guide rail; an interval is arranged between the two V-shaped blocks, ear plates extend from the edges of the two sides of the back surface of the upright post, and the two ear plates are positioned at the edges of the two sides of the back surface of the upright post between the two V-shaped blocks;
the clamping device comprises a screw rod, hinged supports, a pressing plate, a floating V-shaped pressing block, a pull rod hinged support and a pull rod, wherein the screw rod and the pull rod hinged support are respectively and vertically arranged on the two lug plates; the floating V-shaped pressing block is arranged on the pressing plate in a floating mode through a pin.
Will the utility model discloses a work piece mounting fixture is whole arrange drilling machine workstation in, adjusts drilling machine main shaft central point and puts or adjustment frock position, makes drilling machine main shaft center and slewing mechanism's centre of rotation coincidence, when the high-speed rotary drill axial deep hole of drilling machine main shaft drill bit, makes the cylinder body rotate around the axis center low-speed of being processed the hole, makes the drilling hole axis be difficult for crooked and cause the wall of wearing, has improved the qualification rate.
To the utility model discloses technical scheme's preferred, the stand cross-section is "U" type, and the stand back is towards the central line on chassis.
Right the utility model discloses technical scheme's preferred, set up the arc wall along clamp plate length direction indent on the clamp plate back, the evagination sets up the arc lug of packing into in the arc wall on the unsteady "V" shape briquetting, and the arc lug on the unsteady "V" shape briquetting is packed into in the arc wall of clamp plate and through the pin joint.
It is right the utility model discloses technical scheme's preferred, set up round protection apron around driven gear, protection apron is ring shape to fix on the driven gear up end, turn over a formation round apron baffle downwards at the edge of ring shape protection apron.
The utility model has the advantages that:
the workpiece fixing clamp for the rotary drilling of the axial deep hole enables the cylinder body to rotate at a low speed around the axis center of the processed hole while the drill bit of the main shaft of the drilling machine drills the axial deep hole at a high speed in a rotary manner, so that the axis of the drilled hole is not easy to incline to cause wall penetration, and the qualification rate is improved.
Drawings
Fig. 1 is a general view of a work holding jig for axial deep hole rotary drilling (a drill and a workpiece to be machined are shown schematically).
Fig. 2 is a schematic view of the rotary unit (with the hollow upright and driven gear partially cut away).
Fig. 3 is a schematic view of the clamping unit (illustrating the drill and the member to be machined).
Fig. 4 is a state diagram of fig. 3 in which the member to be processed is removed.
Fig. 5 is a sectional view of the cylinder.
Detailed Description
The technical solution of the present invention is explained in detail below, but the scope of protection of the present invention is not limited to the embodiments.
In order to make the disclosure of the present invention more comprehensible, the following description is further made in conjunction with fig. 1 to 5 and the detailed description.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
As shown in fig. 5, the cylinder is one of the main components of a hand-held pneumatic tool pick. The part is a cylinder part, and has a plurality of processing procedures, wherein 301 is an outer cylindrical surface of a cylinder, 302 is a deep hole in fig. 5.
The axial deep hole 302 on the cylinder wall is made on a drilling machine, and the cylinder wall is thin and is easy to penetrate through the wall during processing to cause scrapping. In order to improve the qualification rate of finished products, it is necessary to design a proper cylinder body axial deep hole machining tool.
As shown in fig. 1, the workpiece fixing clamp for axial deep hole rotary drilling of the present embodiment includes a rotating unit 100 and a clamping unit 200, wherein the clamping unit 200 is disposed on the rotating unit 100.
The clamp of the present embodiment is used by placing the whole clamp on a drilling machine table, placing the base 111 of the clamp rotating unit 100 directly on the drilling machine table, and pressing the base 111 with a pressing plate (it is a conventional technique to press the base 111 with a pressing plate). The center position of the drilling machine spindle is adjusted or the position of the tool is adjusted, so that the center of the drilling machine spindle coincides with the rotation center of the rotating mechanism 100, the lengthened drill bit 230 is installed, the cylinder body 300 rotates at a low speed around the axis center of the processed hole while the axial deep hole is drilled in the high-speed rotary drilling of the drilling machine spindle drill, the axis of the drilled hole is not prone to being inclined, so that the wall penetrating is caused, and the qualified rate is improved.
As shown in fig. 1 and 2, the rotating unit 100 includes a holder 110, a rotating shaft disposed perpendicular to the holder 110, and a driving mechanism disposed on the holder 110 and driving the rotating shaft.
As shown in fig. 2, the fixing base 110 includes a base 111 and a hollow upright 112, the base 111 is disposed horizontally, the hollow upright 112 is disposed perpendicular to the base 111 and is fixedly connected to the base 111, and the hollow upright 112 is disposed at a central position of the base 111.
As shown in fig. 2, the rotating shaft is a stepped shaft, and includes a lower rotating shaft section 121 and an upper disc-shaped shoulder section 122, the rotating shaft section 121 is rotatably disposed in the hollow upright column 112, the rotating shaft section 121 is rotatably connected with the inner hole of the hollow upright column 112 through two bearings 131, and the two bearings 131 are respectively disposed at the upper end and the lower end of the rotating shaft section 121. The disc-shaped shoulder section 122 is for fixedly mounting the driven gear 144 within the drive mechanism 140. A positioning column 123 is convexly arranged at the center of the end surface of the disc-shaped shaft shoulder section 122, and the positioning column 123 is used for centering the driven gear 144 and a chassis 211 in the clamping unit 200.
As shown in fig. 2, the driving mechanism includes a motor 142, a driving gear 143 and a driven gear 144, the motor 142 is fixed on the upper end face of the hollow upright column 112 through a motor bracket 141, a motor shaft of the motor 142 is vertical, the driving gear 143 is disposed on the motor shaft of the motor 142, the driving gear 143 is meshed with the driven gear 144, the driven gear 144 is sleeved in the positioning column 123 and fixed on the end face of the disc-shaped shoulder section 122, a ratio of the number of teeth of the driving gear 143 to the number of teeth of the driven gear 144 is smaller than 1, the driving gear 143 and the driven gear 144 constitute a speed reduction mechanism, the motor 142 drives the driving gear 143 to rotate rapidly.
As shown in fig. 1, in the clamp of the present embodiment, a ring of protective cover plate 150 is disposed around the driven gear 144, the protective cover plate 150 is in a ring shape and fixed on the upper end surface of the driven gear 144, and the edge of the ring-shaped protective cover plate is turned downward to form a ring of cover plate baffle.
As shown in fig. 1, 3 and 4, the chucking unit 200 is provided on the rotating unit 100.
As shown in fig. 3 and 4, the clamping unit 200 includes a mounting platform 210 and a clamping device disposed on the mounting platform 210.
As shown in fig. 3 and 4, the mounting platform 210 includes a chassis 211, a column 212 and two V-shaped blocks 215, the chassis 211 is disc-shaped, and a chassis center circular hole matched with the positioning column 123 for centering is formed in the center of the chassis 211; the base plate 211 is connected to the driven gear 144 by bolts. The upright post 212 is eccentrically and vertically arranged on the upper end surface of the chassis 211, the surface of the upright post 212 facing to the center line of the chassis 211 is defined as a back surface, and the surface far away from the center line of the chassis 211 is defined as a front surface; a guide rail 213 is arranged on the back surface of the upright 212 along the length direction of the upright 212, and the upright 212 is symmetrically arranged by taking the guide rail 213 as a symmetrical plane; the two V-shaped blocks 215 are arranged on the back surface of the upright post 212 up and down, and the notches formed on the two V-shaped blocks 215 are matched with the guide rail 213 on the back surface of the upright post 212 in a sliding way, so that the position of the central surface of the two V-shaped blocks 215 can be determined conveniently.
As shown in fig. 3 and 4, a space is provided between the two V-shaped blocks 215, ear plates 214 are extended from both side edges of the back surface of the pillar 212, the two ear plates 214 are located at both side edges of the back surface of the pillar 212 between the two V-shaped blocks 215, and the two ear plates 214 are used for fixing the clamping device.
As shown in fig. 4, the cross-section of the upright 212 is "U" shaped, with the back of the upright 212 facing the centerline of the chassis 211.
As shown in fig. 3 and 4, the clamping device includes a screw 221, a hinged support 222, a pressing plate 223, a floating "V" shaped pressing block 224, a pull rod hinged support 226 and a pull rod 227, the screw 221 and the pull rod hinged support 226 are respectively vertically arranged on the two ear plates 214, the hinged support 222 is arranged at the free end of the screw 221, one end of the pull rod 227 is hinged to the free end of the pull rod hinged support 226, one end of the pressing plate 223 is hinged to the hinged support 222, the other end of the pressing plate 223 is provided with a "U" shaped notch, and the "U" shaped notch is inserted into the pull rod 227 and locked by a flange nut; a floating "V" shaped press block 224 is floatingly disposed on a press plate 223 by a pin 225.
As shown in FIG. 4, an arc-shaped groove is concavely arranged on the back surface of the pressing plate 223 along the length direction of the pressing plate 223, an arc-shaped convex block arranged in the arc-shaped groove is convexly arranged on the floating V-shaped pressing block 224, and the arc-shaped convex block on the floating V-shaped pressing block 224 is arranged in the arc-shaped groove of the pressing plate 223 and connected through a pin 225.
The application process of the clamp of the embodiment is as follows:
the whole of the jig is placed on a drill press table, the base 111 of the jig rotation unit 100 is directly placed on the drill press table, and the base 111 is pressed by a pressing plate (it is a conventional technique to press the base 111 by a pressing plate). The center position of the drilling machine spindle is adjusted or the position of the tool is adjusted to enable the center of the drilling machine spindle to be overlapped with the rotation center of the rotating mechanism 100, and the lengthened drill bit 230 is installed.
The flange nut on the tie rod 227 is loosened and the tie rod 227 is pushed outward, opening the press plate 223 with the floating "V" press block 224 to the other side. With cylinder body 300 dress in the anchor clamps, specifically be: the threaded end of the cylinder body 300 faces downwards, the outer cylindrical surface of the cylinder body 300 is directly placed on the two V-shaped blocks 215, the pressing plate 223 and the pull rod 227 are closed, and the flange nut is screwed.
The motor 142 of the driving mechanism 140 is started, the motor 142 drives the whole fixture and the cylinder 300 to integrally rotate at a low speed, the main shaft of the machine tool is started and intermittently fed and discharges chips, and cooling liquid is additionally added to refrigerate the drill bit. And stopping the main shaft of the machine tool after reaching the proper depth, stopping the motor of the rotating mechanism, replacing the cylinder 300 workpiece, and repeating the operations.
The clamp of the embodiment enables the cylinder body to rotate at a low speed around the axis center of the processed hole when the drill bit of the main shaft of the drilling machine drills the axial deep hole in a high-speed rotary mode, so that the axis of the drilled hole is not prone to being inclined to cause wall penetration, and the qualified rate is improved.
Where not otherwise indicated herein, it will be appreciated that the invention is not limited to or by the prior art, but is capable of modifications and variations as will be apparent to those skilled in the art, and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (4)
1. The utility model provides a work piece mounting fixture of axial deep hole rotation drilling which characterized in that: the clamping device comprises a rotating unit (100) and a clamping unit (200), wherein the clamping unit (200) is arranged on the rotating unit (100);
the rotating unit (100) comprises a fixed seat (110), a rotating shaft and a driving mechanism, wherein the rotating shaft is perpendicular to the fixed seat (110), and the driving mechanism is arranged on the fixed seat (110) and drives the rotating shaft; the fixing seat (110) comprises a base (111) and a hollow upright post (112), the base (111) is horizontally arranged, and the hollow upright post (112) is perpendicular to the base (111) and is fixedly connected with the base (111); the rotating shaft is a stepped shaft and comprises a lower rotating shaft section (121) and an upper disc-shaped shaft shoulder section (122), the rotating shaft section (121) is rotatably arranged in the hollow upright column (112), and a positioning column (123) is convexly arranged at the center of the end surface of the disc-shaped shaft shoulder section (122); the driving mechanism comprises a motor (142), a driving gear (143) and a driven gear (144), the motor (142) is fixed on the upper end face of the hollow upright post (112) through a motor support (141), a motor shaft of the motor (142) is vertical, the driving gear (143) is arranged on the motor shaft of the motor (142), the driving gear (143) is meshed with the driven gear (144), the driven gear (144) is sleeved into a positioning column (123) and fixed on the end face of a disc-shaped shaft shoulder section (122), and the ratio of the number of teeth of the driving gear (143) to the number of teeth of the driven gear (144) is smaller than 1;
the clamping unit (200) comprises an installation platform (210) and a clamping device, the clamping device is arranged on the installation platform (210),
the mounting platform (210) comprises a base plate (211), an upright post (212) and two V-shaped blocks (215), the base plate (211) is disc-shaped, and a base plate central circular hole matched with the positioning post (123) for centering is formed in the central position of the base plate (211); the chassis (211) is connected with a driven gear (144); the upright post (212) is eccentrically and vertically arranged on the upper end surface of the chassis (211), the surface of the upright post (212) facing to the central line of the chassis (211) is defined as a back surface, and the surface far away from the central line of the chassis (211) is defined as a front surface; a guide rail (213) is arranged on the back surface of the upright post (212) along the length direction of the upright post (212), and the upright post (212) is symmetrically arranged by taking the guide rail (213) as a symmetrical plane; the two V-shaped blocks (215) are arranged on the back surface of the upright post (212) up and down, and the two V-shaped blocks (215) are in sliding fit with the guide rail (213); intervals are arranged between the two V-shaped blocks (215), ear plates (214) are arranged at the two side edges of the back surface of the upright post (212) in an extending way, and the two ear plates (214) are positioned at the two side edges of the back surface of the upright post (212) between the two V-shaped blocks (215);
the clamping device comprises a screw rod (221), a hinged support (222), a pressing plate (223), a floating V-shaped pressing block (224), a pull rod hinged support (226) and a pull rod (227), wherein the screw rod (221) and the pull rod hinged support (226) are respectively and vertically arranged on the two lug plates (214), the hinged support (222) is arranged at the free end part of the screw rod (221), one end of the pull rod (227) is hinged with the free end of the pull rod hinged support (226), one end of the pressing plate (223) is hinged with the hinged support (222), the other end part of the pressing plate (223) is provided with a U-shaped notch, and the U-shaped notch is inserted into the pull rod (227) and locked through a flange nut; the floating V-shaped pressing block (224) is arranged on the pressing plate (223) in a floating mode through a pin (225).
2. The workpiece fixing clamp for axial deep hole rotary drilling according to claim 1, wherein the cross section of the column (212) is "U" shaped, and the back surface of the column (212) faces the center line of the chassis (211).
3. The workpiece fixing clamp for axial deep hole rotary drilling according to claim 1, wherein an arc-shaped groove is concavely arranged on the back surface of the pressure plate (223) along the length direction of the pressure plate (223), an arc-shaped convex block which is arranged in the arc-shaped groove is convexly arranged on the floating V-shaped pressing block (224), and the arc-shaped convex block on the floating V-shaped pressing block (224) is arranged in the arc-shaped groove of the pressure plate (223) and is connected with the arc-shaped groove through a pin (225).
4. The workpiece fixing clamp for the axial deep hole rotary drilling is characterized in that a ring of protective cover plate (150) is arranged around the outer periphery of the driven gear (144), the protective cover plate (150) is in a ring shape and is fixed on the upper end face of the driven gear (144), and the edge of the ring-shaped protective cover plate is turned downwards to form a ring of cover plate baffle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920778115.1U CN210024520U (en) | 2019-05-28 | 2019-05-28 | Workpiece fixing clamp for axial deep hole rotary drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920778115.1U CN210024520U (en) | 2019-05-28 | 2019-05-28 | Workpiece fixing clamp for axial deep hole rotary drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210024520U true CN210024520U (en) | 2020-02-07 |
Family
ID=69344686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920778115.1U Active CN210024520U (en) | 2019-05-28 | 2019-05-28 | Workpiece fixing clamp for axial deep hole rotary drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210024520U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110142623A (en) * | 2019-05-28 | 2019-08-20 | 南京信息职业技术学院 | Workpiece fixing clamp for axial deep hole rotary drilling |
-
2019
- 2019-05-28 CN CN201920778115.1U patent/CN210024520U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110142623A (en) * | 2019-05-28 | 2019-08-20 | 南京信息职业技术学院 | Workpiece fixing clamp for axial deep hole rotary drilling |
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