CN221019792U - Tool for drilling inclined holes - Google Patents
Tool for drilling inclined holes Download PDFInfo
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- CN221019792U CN221019792U CN202323057823.1U CN202323057823U CN221019792U CN 221019792 U CN221019792 U CN 221019792U CN 202323057823 U CN202323057823 U CN 202323057823U CN 221019792 U CN221019792 U CN 221019792U
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- bottom plate
- screw rod
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- cushion block
- shaft
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- 238000005553 drilling Methods 0.000 title claims abstract description 27
- 238000003825 pressing Methods 0.000 claims description 43
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 230000007246 mechanism Effects 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- Drilling And Boring (AREA)
Abstract
The utility model discloses a tool for drilling inclined holes, which comprises a bottom plate and an adjustable cushion block; the bottom plate is a rectangular plate body, and two ends of the rectangular plate body are respectively provided with a sine shaft; at least two positioning pins are arranged at the position, close to one end, of the bottom plate; the bottom plate is also provided with a plurality of positioning screw holes; the adjustable cushion blocks are arranged in a plurality and positioned below one of the sine shafts, and comprise a fixed base, a fixed screw rod, a movable screw rod and a screw rod sleeve; a cushion block is horizontally arranged at the upper end of the movable screw rod, and the cushion block is attached to the sine shaft. The utility model has the advantages of convenient clamping and high positioning precision, not only improves the production efficiency, but also can improve the accuracy of inclined hole drilling.
Description
Technical Field
The utility model relates to the field of machining, in particular to a tool for drilling inclined holes.
Background
In machining, a conventional drilling machine, such as a radial drilling machine Z3050x16/1, has a rotation axis (a working axis, i.e., an axis of a drill bit) perpendicular to a table surface, and typically has a drilling hole perpendicular to a bottom surface of a part positioning surface, and it is difficult to drill an inclined hole (a hole having an included angle with respect to a perpendicular line of the bottom surface of the part positioning surface). At present, the inclined hole is drilled by positioning the side surface and the rotary bottom surface of a part by using an arm plate or a support and the like, and then fixing the part for drilling after the included angle is aligned, but the method is troublesome in clamping and low in efficiency, and the accuracy of positioning the included angle is low, so that the accuracy of drilling the inclined hole is low.
Disclosure of utility model
Aiming at the defects in the prior art, the utility model aims to solve the problems of troublesome drilling, low efficiency, poor positioning accuracy and low drilling accuracy of inclined holes, and provides a tool for drilling the inclined holes, which has the advantages of convenient clamping and high (included angle) positioning accuracy, thereby improving the production efficiency and the drilling accuracy of the inclined holes.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: a frock for boring inclined hole, its characterized in that: comprises a bottom plate and an adjustable cushion block; the bottom plate is a rectangular plate body, two sine shafts are respectively arranged at two ends of the rectangular plate body, are mutually parallel and perpendicular to the length direction of the bottom plate, and protrude out of the lower side of the bottom plate; at least two positioning pins are arranged at the position, close to one end, of the bottom plate, and the positioning pins protrude out of the upper side surface of the bottom plate; the locating pins are distributed along the width direction of the bottom plate and are positioned on the same straight line, and the straight line where the locating pins are positioned is parallel to the axial lead of the sine shaft; the bottom plate is also provided with a plurality of positioning screw holes;
The adjustable cushion blocks are arranged in a plurality and positioned below one of the sine shafts, and comprise a fixed base, a fixed screw rod, a movable screw rod and a screw rod sleeve; the upper end face and the lower end of the fixed base are both positioned on a horizontal plane; the fixed screw rod is vertically arranged on the fixed base, and the lower end of the fixed screw rod is fixedly connected with the fixed base; the lower end of the screw rod sleeve is sleeved into the fixed screw rod from the upper end of the fixed screw rod and is in threaded fit connection with the fixed screw rod; the lower end of the movable screw rod extends into the screw rod sleeve from the upper end of the screw rod sleeve and is in threaded fit connection with the screw rod sleeve; a cushion block is horizontally arranged at the upper end of the movable screw rod, and the cushion block is attached to the sine shaft.
Further, the lower side of the bottom plate is provided with an arc-shaped groove penetrating through two sides of the bottom plate at the position corresponding to the two sine shafts respectively, the radius of a circle where the arc-shaped groove is positioned is consistent with the radius of the sine shaft, the depth of the two arc-shaped grooves is consistent, and the depth of the two arc-shaped grooves is smaller than or equal to the radius of the sine shaft; the two sine shafts are positioned in the corresponding circular arc grooves and are fixedly connected with the bottom plate through bolts.
Further, a plurality of connecting grooves are formed in one end, close to the adjustable cushion block, of the bottom plate, corresponding to the adjustable cushion block, the connecting grooves are opposite to the sine shafts and penetrate through the upper side and the lower side of the bottom plate, and the two sides of the connecting grooves extend to the outer sides of the two sides of the sine shafts respectively; a shaft sleeve in an inverted U shape is arranged above the cushion block, the shaft sleeve is sleeved into the sine shaft from the upper side of the sine shaft, and the height of the shaft sleeve is smaller than or equal to the diameter of the sine shaft; the two ends of the shaft sleeve are fixedly connected with the cushion block through bolts penetrating through the cushion block from bottom to top respectively.
Further, a plurality of lightening holes are also arranged on the bottom plate.
Further, at least one pressing plate groove is respectively arranged at two ends of the bottom plate, and penetrates through the upper side and the lower side of the bottom plate and the end parts of the adjacent bottom plates.
Further, the device also comprises a plurality of compression mechanisms distributed at two ends of the bottom plate, wherein each compression mechanism comprises an upright post, a compression bolt and a pressing plate of a telescopic structure; the pressing plate is provided with a through hole, and the lower end of the pressing bolt penetrates through the through hole from top to bottom and is used for being connected with a machine tool; one end of the pressing plate is fixedly connected with the upright post, and the other end of the pressing plate can extend into a pressing plate groove at the end part of the bottom plate.
Further, the stand includes cylinder and column cover, the column cover is established in the cylinder upper end to link to each other with cylinder screw thread cooperation, and the upper end and the clamp plate fixed connection of column cover.
Further, the lower side of the pressing plate is further vertically provided with a limiting plate, and the limiting plate is positioned on one side of the compression screw, which is away from the upright post, and is close to the end part of the pressing plate.
Compared with the prior art, the utility model has the following advantages: the whole tool is simple in structure, convenient to manufacture and low in manufacturing cost; the tool is convenient to clamp and operate during clamping and positioning, and high in angle positioning precision, so that the traditional common equipment can rapidly drill inclined holes, the production efficiency is improved, the accuracy of drilling the inclined holes is improved, and meanwhile, the production cost is reduced.
Drawings
Fig. 1 is a schematic structural diagram of the tool.
Fig. 2 is a cross-sectional view of the tool.
Fig. 3 is a state diagram of a component processing using the tool.
Fig. 4 is a state diagram of another part processing by using the tool.
In the figure: 1-bottom plate, 2-sine shaft, 3-locating pin, 4-locating screw hole, 5-fixed base, 6-fixed screw rod, 7-movable screw rod, 8-screw rod sleeve, 9-cushion block, 10-lightening hole, 11-pressing plate groove, 12-upright post, 13-pressing bolt, 14-pressing plate and 15-part to be processed.
Detailed Description
The utility model will be further described with reference to the drawings and examples.
Examples: referring to fig. 1 and 2, a tool for drilling inclined holes comprises a bottom plate 1 and an adjustable cushion block. The bottom plate 1 is a rectangular plate body with a certain thickness, the upper side surface and the lower side surface of the bottom plate 1 are both planes and are parallel to each other, and when the bottom plate 1 is horizontally arranged, the upper side surface and the lower side surface of the bottom plate are both positioned on a horizontal plane. Two ends of the rectangular plate body are respectively provided with a sine shaft 2, the two sine shafts 2 are mutually parallel and perpendicular to the length direction of the bottom plate 1, and the sine shaft 2 protrudes out of the lower side of the bottom plate 1. In implementation, the lower side of the base plate 1 is provided with an arc-shaped groove penetrating through two sides of the base plate 1 at positions corresponding to the two sine shafts 2, the radius of a circle where the arc-shaped groove is located is identical to that of the sine shaft 2, and the depths of the two arc-shaped grooves are identical and smaller than or equal to that of the sine shaft 2. The two sine shafts 2 are positioned in the corresponding circular arc grooves and are fixedly connected with the bottom plate 1 through bolts. In this way, the sine shaft 2 can be mounted and fixed more preferably.
At least two positioning pins 3 are arranged at the position, close to one end, of the bottom plate 1, and the positioning pins 3 protrude out of the upper side surface of the bottom plate 1 and are perpendicular to the upper side surface of the bottom plate 1; the positioning device is used for positioning the part 15 to be processed, and positioning can be realized by attaching one side of the part 15 to be processed with the positioning column during positioning. The positioning pins 3 are distributed along the width direction of the bottom plate 1 and positioned on the same straight line, and the straight line where the positioning pins 3 are positioned is parallel to the axis of the sine shaft 2. The bottom plate 1 is also provided with a plurality of positioning screw holes 4 for connecting and fixing the part 15 to be processed or installing and fixing the pressing plate device so as to clamp and fix the part 15 to be processed through the pressing plate device. A plurality of lightening holes 10 are also formed on the bottom plate 1 to lighten the weight of the whole fixture.
The adjustable cushion blocks are multiple and are positioned below one of the sinusoidal shafts 2, and the adjustable cushion blocks comprise a fixed base 5, a fixed screw rod 6, a movable screw rod 7 and a screw rod sleeve 8. The upper end face and the lower end of the fixed base 5 are both positioned on a horizontal plane; the fixed screw rod 6 is vertically arranged on the fixed base 5, and the lower end of the fixed screw rod is fixedly connected with the fixed base 5. The lower end of the screw rod sleeve 8 is sleeved into the fixed screw rod 6 from the upper end of the fixed screw rod 6 and is in threaded fit connection with the fixed screw rod 6; the lower end of the movable screw rod 7 extends into the screw rod sleeve 8 from the upper end of the screw rod sleeve 8 and is connected with the screw rod sleeve 8 in a threaded fit manner. A cushion block 9 is horizontally arranged at the upper end of the movable screw rod 7, and the cushion block 9 is attached to the sine shaft 2.
In the concrete implementation, one end of the bottom plate 1, which is close to the adjustable cushion block, is also provided with a plurality of connecting grooves corresponding to the adjustable cushion block, the positions of the connecting grooves are opposite to the sine shaft 2 and penetrate through the upper side and the lower side of the bottom plate 1, and the two sides of the connecting grooves respectively extend to the outer sides of the two sides of the sine shaft 2. A shaft sleeve in an inverted U shape is arranged above the cushion block 9, the shaft sleeve is sleeved into the sine shaft 2 from the upper side of the sine shaft 2, and the height of the shaft sleeve is smaller than or equal to the diameter of the sine shaft 2; the two ends of the shaft sleeve are fixedly connected with the cushion block 9 through bolts penetrating through the cushion block 9 from bottom to top respectively. In this way, the rotation and fixation between the adjustable cushion block and the sine shaft 2 can be realized through the adjusting bolt, so that the support stability of the bottom plate 1 is better.
In implementation, at least one pressing plate groove 11 is respectively arranged at two ends of the bottom plate 1, and the pressing plate groove 11 penetrates through the upper side and the lower side of the bottom plate 1 and penetrates through the end parts of the adjacent bottom plates 1; like this, be convenient for compress tightly fixed whole frock when using.
In a specific real-time process, the device further comprises a plurality of pressing mechanisms distributed at two ends of the bottom plate 1, wherein the pressing mechanisms comprise upright posts 12, pressing bolts 13 and pressing plates 14 of telescopic structures. The pressing plate 14 has a through hole therein, through which the lower end of the pressing bolt 13 passes from top to bottom for connection with a machine tool. One end of the pressing plate 14 is fixedly connected with the upright post 12, and the other end can be penetrated into the pressing plate groove 11 at the end part of the bottom plate 1. The upright post 12 comprises a column body and a column sleeve, wherein the column sleeve is sleeved at the upper end of the column body and is connected with the column body in a threaded fit manner, and the upper end of the column sleeve is fixedly connected with the pressing plate 14; the height of the upright posts 12 is convenient to adjust, and the supporting stability is improved. The lower side of the pressing plate 14 is also vertically provided with a limiting plate which is positioned on one side of the compression screw, which is away from the upright post 12, and is close to the end part of the pressing plate 14; like this, can realize the location of frock in bottom plate 1 length direction, further improve the stability when whole frock uses.
In this scheme, the axle center distance L of sinusoidal axle 2 is the fixed value, and in the course of working, through adjusting adjustable cushion, makes its height be H, and at this moment, wait to process the inclined hole angle of part 15 and be a, according to the trigonometric function principle: h=sin a° L; thus, the height H of the adjusting cushion block 9 is calculated according to the angle of the inclined hole of the part 15 to be processed, and the height of the adjusting cushion block 9 is adjusted to be processed. If the fixed value of the axial center distance L of the tool is 500mm and the angle a of the inclined hole of the part is 30 degrees, the combined height of the cushion blocks 9 is H=sin 30 degrees 500= mm, after the part 15 to be machined is fixed on the bottom plate 1, the height of the cushion blocks 9 is adjusted to 250 mm, and at the moment, the inclined hole of the part 15 to be machined is 30 degrees perpendicular to the working table surface of the equipment (consistent with the movement direction of the drill bit), and drilling can be carried out.
The clamping operation is convenient when the tool is used for clamping and positioning, and the angle positioning precision is high, so that the traditional common equipment can rapidly drill the inclined hole, the production efficiency is improved, the accuracy of drilling the inclined hole is improved, and the production cost is reduced.
The specific processing process comprises the following steps:
As an example: referring to fig. 3, taking the processing of a die inclined guide pillar hole as an example, a certain product part (material ABS) is produced by an injection die (injection molding), a typical inclined guide pillar and inclined slide block core-pulling demolding mechanism is arranged in a die inclusion, and a 21-degree inclined guide pillar hole is formed by combining a fixed die plate, a die cavity plate and an inclined slide block. H=Si21 DEG x (500+/-0.02) = 179.18, the H size of the adjustable cushion block is adjusted to be 179.18 +/-0.05, the adjustable cushion block is padded under the pressing sine shaft, a universal pressing plate, a bolt and a sizing block of equipment (radial drilling machine Z3050x 16/1) are used for pressing (pressing plate groove) and are fixed on a working table of the equipment, and at the moment, the included angle (calculated theoretical value) between a tool and the working table of the equipment is 21+/-0.0054 DEG, so that the precision requirement of the inclination is completely met. And lifting the die, placing the die on a tooling table surface, positioning by a positioning pin, and aligning the center of the drilling hole by aligning the inclined guide pillar hole perpendicular to the equipment table surface (consistent with the movement direction of the drill bit).
As another example: referring to fig. 4, taking the inclined hole processing of batch parts as an example, for the inclined holes of batch middle and small parts to be processed, a clamping vice can be placed on a tooling table top and positioned by a pair of positioning pins, and the clamping vice is fixed and pressed by using all M16 threaded holes on the tooling table top and universal pressing plates, bolts and sizing blocks of equipment. According to the same angle adjustment principle (h=sin a° x 500) as described above, the pad height H value required for the inclined hole is calculated. The vice clamping parts are accurately positioned, parts can be quickly replaced and clamped, and the production efficiency of batch parts is improved.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the technical solution, and those skilled in the art should understand that modifications and equivalents may be made to the technical solution of the present utility model without departing from the spirit and scope of the present utility model, and all such modifications and equivalents are included in the scope of the claims.
Claims (8)
1. A frock for boring inclined hole, its characterized in that: comprises a bottom plate and an adjustable cushion block; the bottom plate is a rectangular plate body, two sine shafts are respectively arranged at two ends of the rectangular plate body, are mutually parallel and perpendicular to the length direction of the bottom plate, and protrude out of the lower side of the bottom plate; at least two positioning pins are arranged at the position, close to one end, of the bottom plate, and the positioning pins protrude out of the upper side surface of the bottom plate; the locating pins are distributed along the width direction of the bottom plate and are positioned on the same straight line, and the straight line where the locating pins are positioned is parallel to the axial lead of the sine shaft; the bottom plate is also provided with a plurality of positioning screw holes;
The adjustable cushion blocks are arranged in a plurality and positioned below one of the sine shafts, and comprise a fixed base, a fixed screw rod, a movable screw rod and a screw rod sleeve; the upper end face and the lower end of the fixed base are both positioned on a horizontal plane; the fixed screw rod is vertically arranged on the fixed base, and the lower end of the fixed screw rod is fixedly connected with the fixed base; the lower end of the screw rod sleeve is sleeved into the fixed screw rod from the upper end of the fixed screw rod and is in threaded fit connection with the fixed screw rod; the lower end of the movable screw rod extends into the screw rod sleeve from the upper end of the screw rod sleeve and is in threaded fit connection with the screw rod sleeve; a cushion block is horizontally arranged at the upper end of the movable screw rod, and the cushion block is attached to the sine shaft.
2. The tooling for drilling an inclined hole according to claim 1, wherein: the lower side of the bottom plate is provided with an arc-shaped groove penetrating through two sides of the bottom plate at positions corresponding to the two sine shafts respectively, the radius of a circle where the arc-shaped groove is positioned is consistent with that of the sine shaft, and the depths of the two arc-shaped grooves are consistent and smaller than or equal to that of the sine shafts; the two sine shafts are positioned in the corresponding circular arc grooves and are fixedly connected with the bottom plate through bolts.
3. The tooling for drilling an inclined hole according to claim 1, wherein: the bottom plate is close to one end of the adjustable cushion block, a plurality of connecting grooves are formed in the corresponding adjustable cushion block, the positions of the connecting grooves are opposite to the sine shafts and penetrate through the upper side and the lower side of the bottom plate, and the two sides of the connecting grooves extend to the outer sides of the two sides of the sine shafts respectively; a shaft sleeve in an inverted U shape is arranged above the cushion block, the shaft sleeve is sleeved into the sine shaft from the upper side of the sine shaft, and the height of the shaft sleeve is smaller than or equal to the diameter of the sine shaft; the two ends of the shaft sleeve are fixedly connected with the cushion block through bolts penetrating through the cushion block from bottom to top respectively.
4. The tooling for drilling an inclined hole according to claim 1, wherein: the bottom plate is also provided with a plurality of lightening holes.
5. The tooling for drilling an inclined hole according to claim 1, wherein: at least one pressing plate groove is respectively arranged at two ends of the bottom plate, and penetrates through the upper side and the lower side of the bottom plate and the end parts of the adjacent bottom plates.
6. The tooling for drilling an inclined hole according to claim 5, wherein: the device also comprises a plurality of compression mechanisms distributed at two ends of the bottom plate, wherein the compression mechanisms comprise upright posts of a telescopic structure, compression bolts and pressing plates; the pressing plate is provided with a through hole, and the lower end of the pressing bolt penetrates through the through hole from top to bottom and is used for being connected with a machine tool; one end of the pressing plate is fixedly connected with the upright post, and the other end of the pressing plate can extend into a pressing plate groove at the end part of the bottom plate.
7. The tooling for drilling an inclined hole according to claim 6, wherein: the stand includes cylinder and column cover, the column cover is established in the cylinder upper end to link to each other with cylinder screw-thread fit, and the upper end and the clamp plate fixed connection of column cover.
8. The tooling for drilling an inclined hole according to claim 6, wherein: the pressing plate is characterized in that a limiting plate is further vertically arranged on the lower side of the pressing plate, is located on one side, deviating from the upright post, of the pressing screw and is close to the end portion of the pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323057823.1U CN221019792U (en) | 2023-11-13 | 2023-11-13 | Tool for drilling inclined holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323057823.1U CN221019792U (en) | 2023-11-13 | 2023-11-13 | Tool for drilling inclined holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221019792U true CN221019792U (en) | 2024-05-28 |
Family
ID=91172690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323057823.1U Active CN221019792U (en) | 2023-11-13 | 2023-11-13 | Tool for drilling inclined holes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221019792U (en) |
-
2023
- 2023-11-13 CN CN202323057823.1U patent/CN221019792U/en active Active
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