CN111113070B - Tool for turning drill bit clamp of rock drill - Google Patents
Tool for turning drill bit clamp of rock drill Download PDFInfo
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- CN111113070B CN111113070B CN201911372985.XA CN201911372985A CN111113070B CN 111113070 B CN111113070 B CN 111113070B CN 201911372985 A CN201911372985 A CN 201911372985A CN 111113070 B CN111113070 B CN 111113070B
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- 239000011435 rock Substances 0.000 title claims abstract description 30
- 238000003825 pressing Methods 0.000 claims abstract description 81
- 238000007667 floating Methods 0.000 claims abstract description 40
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 238000005219 brazing Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000005553 drilling Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000007123 defense Effects 0.000 description 2
- 238000005495 investment casting Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a tool for turning a drill rod clamp of a rock drill, which comprises a clamp body and a rotatable clamping part which is detachably arranged on the clamp body, wherein the drill rod clamp is fixed on the rotatable clamping part; the rotatable clamping part comprises a rotating support frame, a positioning plate, a floating positioning column assembly, a pressing mechanism, a rotating shaft and a movable pushing pin assembly, and the clamp body comprises a flange plate and a support frame perpendicular to the plane of one side of the flange plate. The tool for turning the drill rod clamp of the rock drill has the advantages that the rotatable clamping part is utilized to drive the drill rod clamp to rotate integrally, the surfaces to be machined on the two sides of the drill rod clamp are machined respectively, two sets of tools are not needed, inaccuracy caused by repeated clamping and positioning of blank surfaces is avoided, machining precision is guaranteed, and production efficiency is improved.
Description
Technical Field
The invention relates to a tool for turning a drill rod clamp of a rock drill, and belongs to the technical field of process equipment for machining.
Background
The yT23 rock drill is a high-efficiency air-leg rock drill, mainly used for rock drilling operation in mining roadway tunneling, is also an important tool in railway, water conservancy construction and national defense stone engineering, can perform wet rock drilling on medium-hard and hard rocks, and can drill horizontal and inclined blast holes.
The drill rod card that this design relates to is irregular in shape, and the blank is mostly forging or precision casting spare, and both sides have short cylinder and terminal surface to need processing, because of short cylinder is than short, and the short cylindrical center of part barycenter skew is more, and direct clamping is not very safe, and if adopt direct clamping turning, the position error of blank can not eliminate. Special turning tools need to be designed for the purpose.
Disclosure of Invention
The invention aims to provide a tool for turning a drill rod clamp of a rock drill, wherein the rotatable clamping part is utilized to drive the drill rod clamp to integrally rotate 180 degrees, the surfaces to be processed on the two sides of the drill rod clamp are respectively cut and processed, two sets of tools are not needed, the inaccuracy caused by repeated clamping and positioning by using a blank surface is avoided, the processing precision is ensured, and the production efficiency is improved.
The technical scheme adopted by the invention is as follows: a tool for turning a drill rod clamp of a rock drill comprises a clamp body and a rotatable clamping part which is detachably arranged on the clamp body, wherein the drill rod clamp is fixed on the rotatable clamping part;
the rotatable clamping part comprises a rotating support frame, a positioning plate, a floating positioning column assembly, a pressing mechanism, a rotating shaft and a movable push pin assembly, the rotating support frame is L-shaped, the rotating support frame is detachably arranged on the clamp body, the positioning plate is arranged at one end of the rotating support frame, a space for installing a drill rod clamp is formed between the positioning plate and the rotating support frame, the movable push pin assembly is arranged on the positioning plate and used for ensuring the position between the rotatable clamping part and the clamp body, and the floating positioning column assembly and the pressing mechanism are arranged on the rotating support frame and used for positioning and pressing the drill rod clamp;
the rotary support frame is composed of a rectangular rotary support plate in a horizontal state and a rectangular upright post vertically fixed with the rotary support plate, the upper end of a rotary shaft is inserted into a central round hole in the central position of the rotary support plate, and the lower end of the rotary shaft is inserted into the clamp body and rotates; the upper end of the cuboid-shaped upright post is provided with an inclined pressing plate sliding groove, the left side of the pressing plate sliding groove is higher than the right side of the pressing plate sliding groove, and the groove wall of the pressing plate sliding groove on the cuboid-shaped upright post is provided with a first notch; a sinking groove is formed in the rectangular upright column right below the high end of the pressing plate sliding groove, two through holes are arranged in parallel on the bottom of the sinking groove, the axes of the two through holes are distributed up and down, and guide sleeves are embedded in the two through holes; a guide through hole is formed in the plate at one end, far away from the cuboid-shaped upright post, of the rotating support plate, and a base plate for placing the end face of the drill rod clamp on the rotating support plate is arranged on the rotating support plate;
the locating plate is L-shaped and comprises a horizontal plate in a horizontal state and a vertical plate in a vertical state, and the locating plate is arranged on the rotary support
The plate is arranged on the plate at one end of the plate far away from the cuboid-shaped upright post; the vertical plate of the positioning plate is close to the cuboid-shaped upright post, and the base plate is positioned between the positioning plate and the cuboid-shaped upright post;
the movable push pin assembly is vertically arranged on a transverse plate of the positioning plate and comprises a taper pin, a sleeve-shaped spring seat, a spring and an elastic check ring, the sleeve-shaped spring seat is a sleeve-shaped thin-walled part, the sleeve-shaped spring seat is vertically arranged in a screw hole in the transverse plate through a thread pair, the taper pin is inserted into the sleeve-shaped spring seat, the lower part of the taper pin penetrates through a guide through hole in the rotating support plate, the spring is sleeved on the taper pin, the upper end of the spring is propped against the inner end face of the top of the sleeve-shaped spring seat, the lower end of the spring is limited by the elastic check ring, and the elastic check ring is clamped in a clamping groove in the taper pin;
the floating positioning column assembly comprises a floating positioning column, two cylinders and two pressure springs, the two cylinders are respectively arranged in the two guide sleeves in a sliding mode, the two pressure springs are respectively sleeved on the two cylinders, the free ends of the two cylinders are fixedly provided with the floating positioning column, the floating positioning column is vertically arranged, and the floating positioning column is located on the inner side of the rectangular stand column and is clamped with one end of the backing plate;
the pressing mechanism comprises a movable platen, a pressing screw and a pressing block, the movable platen is inserted into a sliding groove of the pressing plate, the pressing screw is vertically arranged at one end of the movable platen, the pressing screw is connected with the movable platen through a thread pair, the pressing block is arranged at the end part of the pressing screw, the floating pressing working surface of the pressing block is an arc surface, and the pressing block is positioned on the inner side of the cuboid-shaped stand column;
the clamp body comprises a flange plate and a support frame perpendicular to the plane of one side of the flange plate, the support frame consists of an L-shaped support plate and a rectangular platform, one end of the support plate is connected with the platform, and the other end of the support plate is fixed with the plane of one side of the flange plate; the middle part of the platform is provided with a central hole, the platform is provided with two arc-shaped open slots, the two arc-shaped open slots are centered on the axis of the central hole and positioned at two sides of the central hole, and the two arc-shaped open slots are positioned on the same circumference; two conical pits are arranged on the platform, the positions of the two conical pits correspond to the positions of the conical pins on the rotatable clamping part, after the rotatable clamping part is arranged on the rotatable supporting frame, the lower ends of the conical pins are positioned in one conical pit, and after the rotatable clamping part rotates 180 degrees, the lower ends of the conical pins are positioned in the other conical pit;
the rotating shaft in the rotatable clamping part is inserted into the central hole in the middle of the platform, and the rotating support plate of the rotating support frame is detachably connected with the L-shaped support plate.
Preferably, the central hole is internally embedded with a wear-resistant bushing, and the inner diameter of the wear-resistant bushing is in sliding fit with the rotating shaft of the rotatable clamping part.
Preferably, the rotating shaft in the rotatable clamping part is inserted into the wear-resistant bushing, and the tail end of the rotating shaft is provided with a gasket and a nut.
Preferably, the guide sleeve is embedded in the guide through hole on the rotary supporting plate, and the lower part of the taper pin penetrates through the guide sleeve.
Preferably, the floating positioning column is a semi-cylinder, the arc surface of the floating positioning column points to the vertical plate of the positioning plate, a section of guide cone is arranged on the upper end surface of the floating positioning column, and a second notch for clamping the base plate is formed in the lower end of the floating positioning column.
Preferably, the lower end of the taper pin is provided with a conical surface, and the size and the taper of the taper pit are matched with the conical surface at the lower end of the taper pin.
Preferably, the rotating support plate of the rotating support frame is locked with the L-shaped support plate through two locking screws and two arc-shaped open grooves, and the groove widths of the arc-shaped open grooves are matched with the locking screws.
The invention has the beneficial effects that:
1. this frock is used in rock drill bore bit card turning utilizes rotatable clamping part to drive the whole rotation degree of bore bit card, carries out cutting process respectively to the pending processing face of bore bit card both sides, need not use two sets of frocks, has also avoided using the blank face to carry out the inaccuracy that clamping location caused repeatedly, has guaranteed the machining precision, has improved production efficiency.
2. According to the tool for turning the drill rod clamp of the rock drill, the movable pressing plate can slide in the pressing plate sliding groove, so that the rapid pressing or loosening is realized, and the mounting efficiency is improved.
3. The tool for turning the drill rod clamp of the rock drill is characterized in that a rotating support plate forming a rotating support frame and a rectangular upright post at one end are integrally made, so that the tool is firm in structure, safe and reliable.
Drawings
Fig. 1 is a general view of a rock drill chuck turning tool.
Fig. 2 is a schematic view of the clamp body.
Fig. 3 is a schematic view of the support stand.
Fig. 4 is a schematic view of a rotatable clamping portion.
Fig. 5 is a sectional view of the rotatable clamp portion.
Fig. 6 is a schematic view of the rotary support frame (in the figure, a rectangular parallelepiped pillar is cut).
FIG. 7 is a drawing of the components of a prior art drill bit.
Detailed Description
The technical solution of the present invention is described in detail below, but the scope 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 7 and the detailed description.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The yT23 rock drill is a high-efficiency air-leg rock drill, mainly used for rock drilling operation in mining roadway tunneling, is also an important tool in railway, water conservancy construction and national defense stone engineering, can perform wet rock drilling on medium-hard and hard rocks, and can drill horizontal and inclined blast holes.
As shown in fig. 7, the shape of the drill clamp 300 related to the design is irregular, wherein the left processing surface 310, the right processing surface 320, the back surface 330, the end surface 340, the arc groove 350 and the arc surface 360 are arranged on the blank, the blank is mostly a forged piece or a precision casting piece, short cylinders and end surfaces are arranged on two sides of the blank and need to be processed, the short cylinders are shorter, the centers of the short cylinders with part mass center offset are more, direct clamping is not safe, and the position error of the blank cannot be eliminated if the direct clamping turning is adopted.
As shown in fig. 1, the tool for turning the drill bit of the rock drill in the present embodiment includes a clamp body 100 and a rotatable clamping portion 200 detachably mounted on the clamp body 100, and a drill bit 300 is fixed on the rotatable clamping portion 200. The rotary support frame 210 is L-shaped, the rotary support frame 210 is detachably mounted on the fixture body 100, the positioning plate 220 is mounted at one end of the rotary support frame 210, a space for mounting the drill rod clamp 300 is formed between the positioning plate 220 and the rotary support frame 210, the movable push pin assembly 260 is arranged on the positioning plate 220 and used for ensuring the position between the rotatable clamping part 200 and the fixture body 100, and the floating positioning column assembly 230 and the pressing mechanism 240 are arranged on the rotary support frame 210 and used for positioning and pressing the drill rod clamp 300.
As shown in fig. 2 and 3, the clamp body 100 includes a flange 110 and a support 120 perpendicular to a plane of one side of the flange 110, the support 120 is composed of an L-shaped support plate 121 and a rectangular platform 122, one end of the support plate 121 is connected to the platform 122, and the other end of the support plate 121 is fixed to the plane of one side of the flange 110 by bolts.
As shown in fig. 3, a central hole is formed in the middle of the platform 122, a wear-resistant bushing 123 is embedded in the central hole, and the inner diameter of the wear-resistant bushing 123 is in sliding fit with the rotating shaft 250 of the rotatable clamping portion 200. The rotating shaft 250 in the rotatable clamping portion 200 is inserted into the wear-resistant bushing 123, and the end of the rotating shaft 250 is provided with a washer 252 and a nut 253.
As shown in fig. 3, two arc-shaped opening slots 124 are formed in the platform 122, the two arc-shaped opening slots 124 are centered on the axis of the central hole and located at two sides of the central hole, and the two arc-shaped opening slots 124 are located on the same circumference. Because the rotating shaft 250 in the rotatable clamping part 200 is inserted into the central hole in the middle of the platform 122, the rotating support plate 211 of the rotating support frame 210 and the L-shaped support plate 121 are locked by two locking screws 272 and two arc-shaped open slots 124, and the slot width of the arc-shaped open slots 124 is matched with the locking screws 272.
As shown in fig. 3, two conical pits 125 are provided on the platform 122, the positions of the two conical pits 125 correspond to the positions of the conical pins 261 on the rotatable clamping portion 200, after the rotatable clamping portion 200 is mounted on the rotatable supporting frame 210, the lower ends of the conical pins 261 are located in one conical pit 125, and after the rotatable clamping portion 200 is rotated 180 degrees, the lower ends of the conical pins 261 are located in the other conical pit 125; the lower end of the taper pin 261 is provided with a tapered surface 266, and the size and taper of the taper pit 125 are matched with the tapered surface 266 at the lower end of the taper pin 261.
As shown in fig. 4, 5 and 6, the rotatable clamping portion 200 includes a rotatable support bracket 210, a positioning plate 220, a floating positioning post assembly 230, a pressing mechanism 240, a rotating shaft 250 and a movable push pin assembly 260.
As shown in fig. 6, the rotating support frame 210 is composed of a rotating support plate 211 in a rectangular parallelepiped shape in a horizontal state and a rectangular parallelepiped pillar 214 fixed perpendicular to the rotating support plate 211, the upper end of the rotating shaft 250 is inserted into a center circular hole 212 at the center position of the rotating support plate 211, and the lower end of the rotating shaft 250 is inserted into the clamp body 100 and rotates; the entire rotatable clamping portion 200 is rotatably mounted in the wear-resistant bushing 123 at the middle of the rectangular platform 122 on the supporting frame 120 through the rotating shaft 251. The end of the rotating shaft 250 is provided with a washer 252 and a nut 253, and the rotating support plate 211 of the rotating support frame 210 and the L-shaped support plate 121 are locked by two locking screws 272 and two arc-shaped open slots 124, and the slot width of the arc-shaped open slots 124 is matched with the locking screws 272.
As shown in fig. 6, the upper end of the rectangular parallelepiped pillar 214 is provided with an inclined pressing plate sliding slot 217, the pressing plate sliding slot 217 is high at the left and low at the right, and the movable pressing plate 241 can slide in the pressing plate sliding slot. A first notch 218 is arranged on the groove wall of the pressing plate sliding groove 217 on the cuboid upright post 214; the first notch 218 is used to accommodate the compression screw 242 when the movable platen 241 is pushed backward. A sunken groove 215 is formed in the rectangular parallelepiped-shaped upright post 214 just below the high end of the pressing plate sliding groove 217, and the sunken groove 215 is used for accommodating a compression spring 234 of the floating positioning post 231. Two through holes are arranged in parallel on the bottom of the sinking groove 215, the axes of the two through holes are distributed up and down, and guide sleeves 216 are embedded in the two through holes; two cylinders 232 on the floating spud assembly 230 may be a close sliding fit within the guide sleeve 216.
As shown in fig. 6, the rotation support plate 211 is provided with a guide through hole 213 on a plate away from one end of the rectangular parallelepiped-shaped pillar 214, and a backing plate 271 for placing an end face 340 of the brazing sheet 300 thereon is provided on the rotation support plate 211.
As shown in fig. 4 and 5, the positioning plate 220 is L-shaped and is composed of a horizontal plate in a horizontal state and a vertical plate in a vertical state, and the positioning plate 220 is installed on a plate at one end of the rotating support plate 211 away from the rectangular upright post 214; the vertical plate of the positioning plate 220 is close to the rectangular parallelepiped pillar 214, and the backing plate 271 is located between the positioning plate 220 and the rectangular parallelepiped pillar 214.
As shown in fig. 4 and 5, the movable push pin assembly 260 is vertically disposed on the horizontal plate of the positioning plate 220, the movable push pin assembly 260 includes a taper pin 261, a sleeve-shaped spring seat 262, a spring 263 and a circlip 264, the sleeve-shaped spring seat 262 is a sleeve-shaped thin-walled member, the sleeve-shaped spring seat 262 is vertically mounted in a screw hole on the horizontal plate through a screw pair, the taper pin 261 is inserted into the sleeve-shaped spring seat 262, the lower portion of the taper pin 261 penetrates through the guide through hole 213 on the rotating support plate 211, a guide sleeve 265 is embedded in the guide through hole 213 on the rotating support plate 211, and the lower portion of the taper pin 261 penetrates through the guide sleeve 265. The lower end of the taper pin 261 is provided with a tapered surface 266, and the size and taper of the taper pit 125 are matched with the tapered surface 266 at the lower end of the taper pin 261. The spring 263 is sleeved on the taper pin 261, the upper end of the spring 263 is pressed against the inner end face of the top of the sleeve-shaped spring seat 262, the lower end of the spring 263 is limited by the elastic retainer ring 264, and the elastic retainer ring 264 is clamped in the clamping groove on the taper pin 261.
As shown in fig. 4 and 5, the floating positioning column assembly 230 includes a floating positioning column 231, two cylinders 232 and two compression springs 234, the two cylinders 232 are respectively slidably disposed in the two guide sleeves 216, the two compression springs 234 are respectively sleeved on the two cylinders 232, the free ends of the two cylinders 232 are both fixed with the floating positioning column 231, the floating positioning column 231 is vertically disposed, and the floating positioning column 231 is located at the inner side of the rectangular pillar 214 and is engaged with one end of the backing plate 271.
As shown in fig. 5, the floating positioning column 231 is a semi-cylinder, the arc surface of the floating positioning column 231 points to the vertical plate of the positioning plate 220, a section of guiding cone is disposed on the upper end surface of the floating positioning column 231, and the lower end of the floating positioning column 231 is provided with a second notch for engaging with the base plate 271.
As shown in fig. 5, the pressing mechanism 240 includes a movable pressing plate 241, a pressing screw 242 and a pressing block 243, the movable pressing plate 241 is inserted into the pressing plate sliding slot 217, the pressing screw 242 is vertically disposed at one end of the movable pressing plate 241, the pressing screw 242 and the movable pressing plate 241 are connected through a screw pair, the pressing block 243 is mounted at an end of the pressing screw 242, a floating pressing surface of the pressing block 243 is an arc surface, and the pressing block 243 is located inside the rectangular parallelepiped-shaped column 214. The movable platen 241 can slide in the platen sliding groove to realize rapid pressing or loosening, and the installation efficiency is improved.
The working process of the tool for turning the drill rod clamp of the rock drill in the embodiment is as follows:
the pressing screw 241 of the pressing mechanism 240 is loosened, the movable press plate 241 is retreated to the limit position, the pressing screw 241 is retreated into the notch 218 of the rotating support frame 210, the processed part is taken out, another drill rod clamp 300 to be added is placed in the fixture, the back surface 330 of the drill rod clamp leans against the positioning plate 220, the end surface 340 of the drill rod clamp is placed on the backing plate 271, and the floating positioning column 231 abuts against the arc groove 350 of the drill rod clamp. The movable pressing plate 241 moves towards the middle of the clamp, the pressing screw 241 of the pressing mechanism 240 is screwed tightly, the arc-shaped surface of the pressing block 243 is pressed at the position of the arc surface 360 of the drill clamp, the lathe is started, and the short cylinder and the end surface which are positioned at the outer side are turned. And stopping the lathe spindle after the machining is finished. The locking screw 272 is loosened, the tapered pin 261 is pulled out, and the rotatable clamping portion 200 is rotated 180 degrees until the tapered surface 266 at the lower end of the tapered pin 261 enters the tapered recess 125 on the support bracket 120. The locking screw 272 is tightened. And continuously starting the lathe, and turning the short cylinder and the end face on the other side of the drill rod. And stopping the lathe spindle after the machining is finished. The pressing screw of the pressing mechanism is loosened, the movable pressing plate 241 is retreated to the extreme position, the pressing screw is retreated into the first notch 218 of the rotating support frame, the processed part is taken out, and another to-be-brazed card is placed in the clamp … …. The above actions are repeated.
Where not otherwise indicated herein or enabled by the prior art, it will be appreciated that modifications and variations may be resorted to without departing from the scope of the invention as set forth in the appended claims.
Claims (7)
1. The utility model provides a frock is used in turning of rock drill bore card which characterized in that: comprises a clamp body (100) and a rotatable clamping part (200) which is detachably arranged on the clamp body (100), wherein a brazing clamp (300) is fixed on the rotatable clamping part (200);
the rotatable clamping part (200) comprises a rotating support frame (210), a positioning plate (220), a floating positioning column assembly (230), a pressing mechanism (240), a rotating shaft (250) and a movable pushing pin assembly (260), wherein the rotating support frame (210) is L-shaped, the rotating support frame (210) is detachably arranged on the clamp body (100), the positioning plate (220) is arranged at one end of the rotating support frame (210), a space for installing the drill clamp (300) is formed between the positioning plate (220) and the rotating support frame (210), the movable pushing pin assembly (260) is arranged on the positioning plate (220) and used for ensuring the position between the rotatable clamping part (200) and the clamp body (100), and the floating positioning column assembly (230) and the pressing mechanism (240) are arranged on the rotating support frame (210) and used for positioning and pressing the drill clamp (300);
the rotating support frame (210) is composed of a rotating support plate (211) in a cuboid shape in a horizontal state and a cuboid-shaped upright post (214) vertically fixed with the rotating support plate (211), the upper end of a rotating shaft (250) is inserted into a central round hole (212) in the central position of the rotating support plate (211), and the lower end of the rotating shaft (250) is inserted into the fixture body (100) and rotates; the upper end of the cuboid-shaped upright post (214) is provided with an inclined pressing plate sliding groove (217), and the pressing plate sliding groove (217) is high at the left and low at the right; a first notch (218) is arranged on the groove wall of the pressing plate sliding groove (217) on the cuboid-shaped upright post (214); a sinking groove (215) is formed in the rectangular upright post (214) right below the high end of the pressing plate sliding groove (217), two through holes are arranged in parallel at the bottom of the sinking groove (215), the axes of the two through holes are distributed up and down, and guide sleeves (216) are embedded in the two through holes; a guide through hole (213) is arranged on a plate at one end of the rotating support plate (211) far away from the cuboid-shaped upright post (214), and a backing plate (271) for placing the end surface (340) of the brazing clip (300) is arranged on the rotating support plate (211);
the positioning plate (220) is L-shaped and consists of a horizontal plate in a horizontal state and a vertical plate in a vertical state, and the positioning plate (220) is arranged on a plate at one end of the rotating supporting plate (211) far away from the cuboid-shaped upright post (214); the vertical plate of the positioning plate (220) is close to the cuboid-shaped upright post (214), and the backing plate (271) is positioned between the positioning plate (220) and the cuboid-shaped upright post (214);
the movable push-pin assembly (260) is vertically arranged on a transverse plate of the positioning plate (220), the movable push-pin assembly (260) comprises a taper pin (261), a sleeve-shaped spring seat (262), a spring (263) and an elastic retainer ring (264), the sleeve-shaped spring seat (262) is a sleeve-shaped thin-walled part, the sleeve-shaped spring seat (262) is vertically arranged in a screw hole in the transverse plate through a thread pair, the taper pin (261) is inserted into the sleeve-shaped spring seat (262), the lower part of the taper pin (261) penetrates through a guide through hole (213) in the rotating support plate (211), the spring (263) is sleeved on the taper pin (261), the upper end of the spring (263) is propped against the inner end face of the top of the sleeve-shaped spring seat (262), the lower end of the spring (263) is limited by the elastic retainer ring (264), and the elastic retainer ring (264) is clamped in a clamping groove in the taper pin (261);
the floating positioning column assembly (230) comprises a floating positioning column (231), two cylinders (232) and two pressure springs (234), the two cylinders (232) are arranged in two guide sleeves (216) in a sliding mode respectively, the two pressure springs (234) are sleeved on the two cylinders (232) respectively, the free ends of the two cylinders (232) are fixedly provided with the floating positioning column (231), the floating positioning column (231) is vertically arranged, and the floating positioning column (231) is located on the inner side of the rectangular upright column (214) and is clamped with one end of the backing plate (271);
the pressing mechanism (240) comprises a movable pressing plate (241), a pressing screw (242) and a pressing block (243), the movable pressing plate (241) is inserted into the pressing plate sliding groove (217), the pressing screw (242) is vertically arranged at one end of the movable pressing plate (241), the pressing screw (242) is connected with the movable pressing plate (241) through a thread pair, the pressing block (243) is installed at the end part of the pressing screw (242), the floating pressing working surface of the pressing block (243) is an arc-shaped surface, and the pressing block (243) is located on the inner side of the cuboid-shaped upright column (214);
the clamp body (100) comprises a flange plate (110) and a support frame (120) perpendicular to the plane of one side of the flange plate (110), the support frame (120) is composed of an L-shaped support plate (121) and a cuboid platform (122), one end of the support plate (121) is connected with the platform (122), and the other end of the support plate (121) is fixed with the plane of one side of the flange plate (110); the middle part of the platform (122) is provided with a central hole, the platform (122) is provided with two arc-shaped open grooves (124), the two arc-shaped open grooves (124) take the axis of the central hole as the center and are positioned at two sides of the central hole, and the two arc-shaped open grooves (124) are positioned on the same circumference; two conical pits (125) are arranged on the platform (122), the positions of the two conical pits (125) correspond to the positions of the conical pins (261) on the rotatable clamping part (200), after the rotatable clamping part (200) is installed on the rotatable supporting frame (210), the lower ends of the conical pins (261) are positioned in one conical pit (125), and after the rotatable clamping part (200) rotates 180 degrees, the lower ends of the conical pins (261) are positioned in the other conical pit (125);
a rotating shaft (250) in the rotatable clamping part (200) is inserted into a central hole in the middle of the platform (122), and a rotating support plate (211) of the rotating support frame (210) is detachably connected with an L-shaped support plate (121).
2. The rock drill chuck turning tool according to claim 1, characterized in that a wear-resistant bushing (123) is embedded in the central hole, and the inner diameter of the wear-resistant bushing (123) is in sliding fit with a rotating shaft (250) of the rotatable clamping part (200).
3. The rock drill chuck turning tool according to claim 2, characterized in that the rotating shaft (250) in the rotatable clamping part (200) is inserted into the wear-resistant bushing (123), and the end of the rotating shaft (250) is provided with a gasket (252) and a nut (253).
4. The rock drill chuck turning tool according to claim 1, characterized in that a guide sleeve (265) is embedded in the guide through hole (213) of the rotary support plate (211), and the lower part of the taper pin (261) penetrates through the guide sleeve (265).
5. The tool for the drill rod chuck turning of the rock drill according to claim 1, wherein the floating positioning column (231) is a semi-cylinder, the arc surface of the floating positioning column (231) points to the vertical plate of the positioning plate (220), a section of guide cone is arranged on the upper end surface of the floating positioning column (231), and the lower end of the floating positioning column (231) is provided with a second notch for clamping the base plate (271).
6. The rock drill rod turning tool according to claim 1, characterized in that the lower end of the conical pin (261) is provided with a conical surface (266), and the size and the taper of the conical pit (125) are matched with the conical surface (266) at the lower end of the conical pin (261).
7. The tool for rock drill rod chuck turning according to claim 1, characterized in that the rotating support plate (211) of the rotating support frame (210) and the L-shaped support plate (121) are locked by two locking screws (272) and two arc-shaped open grooves (124), and the width of the arc-shaped open grooves (124) is matched with the width of the locking screws (272).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911372985.XA CN111113070B (en) | 2019-12-27 | 2019-12-27 | Tool for turning drill bit clamp of rock drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911372985.XA CN111113070B (en) | 2019-12-27 | 2019-12-27 | Tool for turning drill bit clamp of rock drill |
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| Publication Number | Publication Date |
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| CN111113070A CN111113070A (en) | 2020-05-08 |
| CN111113070B true CN111113070B (en) | 2021-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911372985.XA Active CN111113070B (en) | 2019-12-27 | 2019-12-27 | Tool for turning drill bit clamp of rock drill |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114434177B (en) * | 2022-02-22 | 2024-04-30 | 西安石油大学 | Four-axis milling clamp for piston cylinder shell |
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