CN215237999U - Bolt head drilling tool - Google Patents
Bolt head drilling tool Download PDFInfo
- Publication number
- CN215237999U CN215237999U CN202121725070.5U CN202121725070U CN215237999U CN 215237999 U CN215237999 U CN 215237999U CN 202121725070 U CN202121725070 U CN 202121725070U CN 215237999 U CN215237999 U CN 215237999U
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Abstract
The utility model relates to a bolt head drilling frock, including base, radial locating piece, radial compact heap and be used for driving the radial hold-down mechanism of radial compact heap action, radial locating piece sets up on the base, the butt joint forms and holds the chamber with the hexagonal of waiting to process bolt head looks adaptation between radial locating piece and the radial tight piece of clamp, the bottom that holds the chamber is planar structure, be equipped with the vertical guiding hole that is used for processing bolt head inclined plane insurance pinhole on radial locating piece, the radial compact heap respectively. The radial pressing mechanism comprises a radial locking block and a radial pressing bolt in threaded connection with the radial locking block. The utility model discloses simple structure, convenient operation turns into the hole of perpendicular to drilling machine workstation with the bolt head for the hole on drilling machine workstation on inclined plane, can directly implement the drilling operation at the bolt head inclined plane on the drilling machine, has guaranteed the position degree and the protection drill bit in bolt head upper hole, has improved bolt head drilling precision and drill bit life.
Description
Technical Field
The utility model relates to a bolt head drilling frock belongs to fastener technical field.
Background
The bolts are referred to as industrial rice, although tiny, but by no means trivial. The bolt and the nut are both self-locking, and can not be loosened automatically when the static load and the working temperature change is not large. However, under the conditions of impact, vibration or variable load action and large working temperature change, the connection may loosen, which affects the work and even causes accidents, especially on high-tech objects such as airplanes, aeroengines, rockets and the like, and the bolt looseness prevention cannot be ignored.
The bolt anti-loosening method generally adopts three methods of friction anti-loosening, mechanical anti-loosening and thread pair damage. Wherein, the mechanical anti-loosening effect is the most obvious. The bolt head is provided with a safety pin hole, and the bolts grouped together are connected in series through the safety pin hole, so that the common mechanical anti-loosening mode is adopted, and the method is most common in the anti-loosening of the bolts in the aerospace field. The conventional shear pin hole 123 is generally located in the flat surface 121 of the hex head bolt 12 as shown in fig. 1 and 2. If the diameter of the bolt is too small, the distance between the axis of the safety pin hole and the axis of the bolt is too small, the safety pin hole is long and thin, and in order to enhance the anti-loosening effect and facilitate threading, the safety pin hole 123 is gradually designed on the inclined surface 122 of the head of the bolt in the product design, as shown in fig. 3 and 4.
The existing drilling machine cannot directly realize drilling on the inclined plane, only a sink table or a boss needs to be milled in advance when the inclined plane is drilled, and the inclined plane is machined by milling after the drilling machine drills a hole on the plane; in addition, the safety pin hole is generally a slender hole, and the drill bit is easy to break if the drill bit is not protected.
Disclosure of Invention
The utility model discloses not enough to prior art exists provides a simple structure, guarantees the drilling precision on the bolt head inclined plane, changes the drilling of the inclined plane on the drilling machine into the drilling operation of perpendicular workstation, and the operation is convenient and reliable more, can also play the bolt head drilling frock of protection drill bit.
The utility model provides an above-mentioned technical problem's technical scheme as follows: the utility model provides a bolt head drilling frock, includes base, radial locating piece, radial compact heap and is used for driving the radial hold-down mechanism of radial compact heap action, the radial locating piece sets up on the base, the butt joint forms and holds the chamber with the hexagonal of waiting to process bolt head looks adaptation between radial locating piece and the radial tight piece of clamp, the bottom that holds the chamber is planar structure, be equipped with the vertical guiding hole that is used for processing bolt head inclined plane insurance pinhole on radial locating piece, the radial compact heap respectively.
The utility model has the advantages that: simple structure, convenient operation turns into the hole of perpendicular to drilling machine workstation with the bolt head for the hole on drilling machine workstation inclined plane, can directly implement the drilling operation at the bolt head inclined plane on the drilling machine, has guaranteed the position degree and the protection drill bit in hole on the bolt head, has improved bolt head drilling accuracy and drill bit life.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Furthermore, radial hold-down mechanism includes radial latch segment and with radial latch segment threaded connection's radial clamp bolt, radial latch segment sets up on the base, radial clamp bolt's rod end passes radial latch segment and acts on radial clamp segment.
The beneficial effect who adopts above-mentioned further scheme is that, radial latch segment fixed mounting is on the base, and radial clamp bolt threaded connection is on radial latch segment, rotates radial clamp bolt, and radial clamp bolt moves in the radial direction of waiting to process the bolt, and clamp bolt's rod end acts on radial clamp segment and can promote radial clamp segment and move towards radial locating piece direction to will wait to process the bolt and press from both sides tight location.
Furthermore, the base is provided with a guide groove for guiding and limiting the radial positioning block and/or the radial pressing block.
The adoption of the further scheme has the beneficial effects that the installation position of the radial positioning block can be limited so as to ensure the positioning precision of the radial positioning block; the radial pressing block moves towards the radial positioning block under the action of the radial pressing mechanism, and the guide groove is designed to guide and limit the movement of the radial pressing block so as to ensure that
Further, the axial positioning block is used for limiting the axial direction of the bolt to be machined.
The axial positioning block can be used for positioning the head of the bolt to be machined, and the axial positioning block can be used for enabling the head of the bolt to be machined to be flush with the side faces of the positioning block and the pressing block to meet the requirement of hole position axial positioning accuracy.
Furthermore, the axial positioning block can axially move under the action of the axial locking mechanism.
The axial positioning block can be adjusted in position through the axial locking mechanism to meet the requirement of positioning accuracy of the bolt to be machined in the axial direction.
Furthermore, the axial locking mechanism comprises an axial locking block and an axial locking bolt in threaded connection with the axial locking block, the axial locking block is arranged on the base, and the rod end of the axial locking bolt penetrates through the axial locking block to act on the axial positioning block.
The beneficial effects of adopting above-mentioned further scheme are that, axial latch segment fixed mounting is on the base, and axial locking bolt threaded connection rotates axial locking bolt on the axial latch segment, and axial locking bolt moves in the axial direction of treating the processing bolt, and the rod end of locking bolt acts on the axial locating piece to promote the axial locating piece and remove towards radial locating piece direction, thereby treat the axial of processing bolt and carry out accurate location.
Furthermore, the top of the guide hole is provided with a spot facing.
The further scheme has the advantages that hole positions can be found quickly, the drill bit can be protected, drilling accuracy is improved, and the service life of the drill bit is prolonged.
Furthermore, a positioning shoulder is arranged on the base.
The beneficial effect who adopts above-mentioned further scheme is, further increased the degree of depth that holds the chamber, guaranteed the quick location and the clamping of radial locating piece and radial compact heap, and the clamping is more stable.
Further, the radial positioning block is mounted on the base through a first bolt.
Adopt above-mentioned further scheme's beneficial effect to be, realize the location installation of radial locating piece on the base through the bolt.
Further, the radial locking block is installed on the base through a second bolt.
Adopt above-mentioned further scheme's beneficial effect be, realize the location installation of radial latch segment on the base left side through the bolt.
Further, the axial locking block is installed on the base through a third bolt.
Adopt above-mentioned further scheme's beneficial effect be, realize the location installation of radial locating piece on the base front side through the bolt.
Drawings
FIG. 1 is a front view of a conventional bolt with a hole drilled in the plane of the bolt head;
FIG. 2 is a left side view of a prior art bolt head with a bore hole in the plane;
FIG. 3 is a front view of a prior art bolt with a bore hole in the bolt head bevel;
FIG. 4 is a left side view of a prior art bolt head with a bore hole in the bevel;
fig. 5 is a schematic structural view of the present invention;
fig. 6 is a partial enlarged view of the pilot hole of the present invention.
In the figure, 1, a base; 2. axial positioning blocks; 3. an axial locking block; 4. radial positioning blocks; 5. a radial compaction block; 6. a radial locking block; 7. radial compression bolts; 8. an axial locking bolt; 9. a guide hole; 10. an accommodating chamber; 11. a guide groove; 12. a bolt to be processed; 121. a plane; 122. a bevel; 123. a safety pin hole; 13. reaming a hole; 14. positioning the shoulder; 15. a first bolt; 16. a second bolt; 17. and a third bolt.
Detailed Description
The principles and features of the present invention are described below in conjunction with examples, which are set forth only to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 5 and 6, the bolt head drilling tool comprises a base 1, a radial positioning block 4, a radial pressing block 5 and a radial pressing mechanism for driving the radial pressing block to move, wherein the radial positioning block 4 is arranged on the base 1, the radial positioning block 4 and the radial clamping block 5 are butted to form a hexagonal accommodating cavity 10 matched with a bolt head to be machined, the bottom of the accommodating cavity is of a planar structure, and vertical guide holes 9 for machining bolt head inclined plane safety pin holes are respectively formed in the radial positioning block and the radial pressing block.
The radial pressing mechanism comprises a radial locking block 6 and a radial pressing bolt 7 in threaded connection with the radial locking block, the radial locking block is arranged on the base, and the rod end of the radial pressing bolt penetrates through the radial locking block to act on the radial pressing block. Radial latch segment fixed mounting is on the base, and radial clamp bolt threaded connection rotates radial clamp bolt on radial latch segment, and radial clamp bolt moves in the radial direction of treating the processing bolt, and clamp bolt's rod end acts on radial clamp segment and can promote radial clamp segment and move towards radial locating piece direction to will treat that the processing bolt presss from both sides tight location.
The base is provided with a guide groove 11 used for guiding and limiting the radial positioning block and/or the radial pressing block. The mounting position of the radial positioning block can be limited to ensure the positioning precision of the radial positioning block; the radial pressing block moves towards the radial positioning block under the action of the radial pressing mechanism, and the guide groove is designed to guide and limit the movement of the radial pressing block so as to ensure that
The axial positioning device further comprises an axial positioning block 2 used for limiting the axial direction of the bolt 12 to be machined. The radial precision of the hole position is guaranteed, the axial precision of the drilled hole is guaranteed, the head of the bolt to be machined can be positioned by the axial positioning block, and the requirement of the hole position axial positioning precision is met by enabling the bolt head to be flush with the side faces of the positioning block and the pressing block through the axial positioning block.
The axial positioning block can axially move under the action of the axial locking mechanism. The axial positioning block can adjust the position thereof through the axial locking mechanism to meet the requirement of positioning precision of the bolt to be processed in the axial direction.
The axial locking mechanism comprises an axial locking block 3 and an axial locking bolt 8 in threaded connection with the axial locking block, the axial locking block is arranged on the base, and the rod end of the axial locking bolt penetrates through the axial locking block to act on the axial positioning block. The axial locking block is fixedly installed on the base, the axial locking bolt is in threaded connection with the axial locking block, the axial locking bolt is rotated and moves in the axial direction of the bolt to be processed, the rod end of the locking bolt acts on the axial positioning block, and therefore the axial positioning block is pushed to move towards the radial positioning block, and the axial direction of the bolt to be processed is accurately positioned.
And the top of the guide hole is provided with a spot facing 13. The hole position can be found quickly, the drill bit can be protected, the drilling precision is improved, and the service life of the drill bit is prolonged.
A locating shoulder 14 is provided on the base. The depth of the accommodating cavity is further increased, rapid positioning and clamping of the radial positioning block and the radial pressing block are guaranteed, and clamping is more stable.
The radial positioning block is mounted on the base by means of a first bolt 15. The positioning and installation of the radial positioning block on the base are realized through bolts.
The radial locking block is mounted on the base by a second bolt 16. The positioning installation of the radial locking block on the left side of the base is realized through a bolt.
The axial locking block is mounted on the base by a third bolt 17. The positioning installation of the radial positioning block on the front side of the base is realized through bolts.
Meanwhile, the inclined plane drilling of bolts with different specifications can be met, and the utilization rate of bolt materials is improved.
The working process is as follows: the base is clamped on the drilling machine, and if the base can be directly clamped on the vice on the drilling machine, the clamping and positioning of the tool are realized; the axial positioning block 2 is used for axially positioning the head of the bolt, and the axial positioning of the bolt to be processed is realized by adjusting the axial locking bolt on the axial locking block 3; radial positioning piece 4 is used for confirming the radial position of bolt head, and radial latch segment 6 top hole is the screw hole, can realize radial compact heap 5's radial movement through the radial clamp bolt 7 of cooperation to satisfy the quick clamp of waiting to process the bolt, so that carry out the inclined plane drilling to the product bolt head. A U-shaped groove, namely a guide groove, is cut on the base, so that the relative position degree and the rapid positioning and clamping of the radial positioning block 4 and the radial pressing block 5 can be ensured. The existence of the guide hole and the spot facing at the top can not only quickly find the hole position but also protect the drill bit, improve the drilling precision and prolong the service life of the drill bit
By adopting the technical scheme, the hole of the bolt head, which is an inclined plane relative to the drill press workbench, can be converted into the hole vertical to the drill press workbench, so that the drilling operation can be directly implemented on the drill press, and if the distance between two opposite sides of a hexagonal structure of an accommodating cavity formed by a radial positioning block and a radial pressing block of a tool is 10mm, the tool can be used for processing a product with the opposite side size of the bolt head being 9.7-9.95 mm; the radial positioning blocks 4 and the radial pressing blocks 5 in different specifications can be replaced according to bolts to be machined in different specifications, and hexagonal accommodating cavities matched with the bolts to be machined can be formed between the radial positioning blocks and the radial pressing blocks in different specifications, so that the inclined surface drilling of the heads of the bolts in different specifications is realized, the inclined surface drilling of the bolts in different specifications is met, the utilization rate of bolt materials is improved, and the drilling precision and the service life of a drill bit are improved.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. The utility model provides a bolt head drilling frock, its characterized in that includes base, radial locating piece, radial compact heap and is used for driving the radial hold-down mechanism of radial compact heap action, radial locating piece sets up on the base, the butt joint forms and waits to process the hexagonal of bolt head looks adaptation and hold the chamber between radial locating piece and the radial tight piece of clamp, the bottom that holds the chamber is planar structure, be equipped with vertical guiding hole on radial locating piece, the radial compact heap respectively.
2. The drilling tool according to claim 1, wherein the radial pressing mechanism comprises a radial locking block and a radial pressing bolt in threaded connection with the radial locking block, the radial locking block is arranged on the base, and a rod end of the radial pressing bolt penetrates through the radial locking block and acts on the radial pressing block.
3. The drilling tool according to claim 2, wherein a guide groove for guiding and limiting the radial positioning block and/or the radial pressing block is formed in the base.
4. The drilling tool according to claim 1, 2 or 3, further comprising an axial positioning block for limiting the axial direction of the bolt to be machined.
5. The drilling tool as claimed in claim 4, wherein the axial positioning block is axially movable under the action of an axial locking mechanism.
6. The drilling tool according to claim 5, wherein the axial locking mechanism comprises an axial locking block and an axial locking bolt in threaded connection with the axial locking block, the axial locking block is arranged on the base, and a rod end of the axial locking bolt penetrates through the axial locking block and acts on the axial positioning block.
7. The drilling tool according to claim 1, wherein a spot facing is arranged at the top of the guide hole.
8. The drilling tool according to claim 4, wherein a positioning shoulder is arranged on the base.
9. The drilling tool of claim 1, wherein the radial locating block is mounted on the base by a first bolt.
10. The drilling tool of claim 2, wherein the radial locking block is mounted on the base by a second bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121725070.5U CN215237999U (en) | 2021-07-28 | 2021-07-28 | Bolt head drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121725070.5U CN215237999U (en) | 2021-07-28 | 2021-07-28 | Bolt head drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215237999U true CN215237999U (en) | 2021-12-21 |
Family
ID=79495071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121725070.5U Expired - Fee Related CN215237999U (en) | 2021-07-28 | 2021-07-28 | Bolt head drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215237999U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116689823A (en) * | 2023-07-25 | 2023-09-05 | 南通市正大电子有限公司 | Processing device for threading small holes of high-temperature alloy fastening screws |
-
2021
- 2021-07-28 CN CN202121725070.5U patent/CN215237999U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116689823A (en) * | 2023-07-25 | 2023-09-05 | 南通市正大电子有限公司 | Processing device for threading small holes of high-temperature alloy fastening screws |
| CN116689823B (en) * | 2023-07-25 | 2024-03-01 | 南通市正大电子有限公司 | Processing device for threading small holes of high-temperature alloy fastening screws |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211221 |