CN209919382U - Clamp capable of automatically positioning and ensuring coaxiality - Google Patents
Clamp capable of automatically positioning and ensuring coaxiality Download PDFInfo
- Publication number
- CN209919382U CN209919382U CN201920785043.3U CN201920785043U CN209919382U CN 209919382 U CN209919382 U CN 209919382U CN 201920785043 U CN201920785043 U CN 201920785043U CN 209919382 U CN209919382 U CN 209919382U
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- spring
- steel ball
- positioning
- hole
- mounting block
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Abstract
The utility model discloses an automatic anchor clamps of axiality are guaranteed in location, its structure includes pedestal, positioning bolt, spring location part, spring and steel ball, the pedestal is equipped with two positioning bolt, positioning bolt's screw rod free end extends to the pedestal outside, and pedestal center department is equipped with the communicating centre bore in both ends, be equipped with spring location part, spring and steel ball in the centre bore, centre bore one end is arranged in to the steel ball, spring one end is supported and is leaned on the steel ball, and the other end is connected with spring location part. The steel ball is arranged in the center hole of the seat body, the steel ball is extruded through the spring, the long shaft can be automatically centered when being installed, the turning at two ends of the long shaft of 3m is realized through one-time clamping, the coaxiality of the long shaft is ensured, and the machining precision is improved.
Description
Technical Field
The utility model relates to an anchor clamps, specific automatic anchor clamps of axiality are guaranteed in location that says so.
Background
At present, a series of double horizontal shaft stirring main machines (1 m) are on the market2To 9m2) The shaft end sealing form is basically the end surface sealing of a floating seal ring structure, and the coaxiality of the two ends of the stirring long shaft of the main rotating part matched with the shaft end sealing form is not less than 0.06 mm. And common numerical control equipment is mostly three-jaw chuck clamping work piece, through turning around turning both ends, therefore the axiality at major axis both ends receives equipment condition restriction, and problem has appeared in equipment, and the axiality will be influenced, has caused very big hidden danger for the work piece quality.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an automatic anchor clamps of axiality are guaranteed in location mainly solves the problem that can't guarantee the axiality when present major axis processing both ends. The fixture can realize automatic centering during long shaft installation, realizes one-time clamping and turning of two ends of a long shaft, and improves working efficiency while quality is guaranteed.
The utility model provides a technical scheme that its technical problem adopted is: the fixture for ensuring coaxiality through automatic positioning structurally comprises a base body, positioning bolts, a spring positioning component, a spring and a steel ball, wherein the base body is provided with the two positioning bolts, the free ends of screws of the positioning bolts extend to the outside of the base body, the center of the base body is provided with a center hole with two communicated ends, the spring positioning component, the spring and the steel ball are arranged in the center hole, the steel ball is arranged at one end of the center hole, one end of the spring abuts against the steel ball, and the other end of the spring is connected with the spring positioning.
Furthermore, the spring positioning part comprises an installation block and a spring fixing rod, wherein the installation block is arranged at one end of the spring fixing rod and is cylindrical, external threads are arranged on the outer circumference of the installation block, and a groove convenient to install is formed in the center of the end face of the free end of the installation block.
Further, the center hole is composed of a threaded hole, a unthreaded hole and a limiting hole, the threaded hole is in threaded fit with the external thread of the mounting block, the diameters of the threaded hole and the unthreaded hole are larger than the diameter of the steel ball, and the diameter of the limiting hole is smaller than the diameter of the steel ball.
Furthermore, the spring is a pressure spring capable of bearing 0.3MPa of pre-pressure.
Furthermore, two positioning bolts are arranged on the seat body and are respectively arranged on two sides of a center hole of the seat body, and the extending free ends of the positioning bolts are connected with two screw holes which are processed in advance on the long shaft in a matching manner.
The utility model has the advantages that:
1. the utility model discloses an anchor clamps are through setting up the steel ball in the current seat body centre bore, through spring extrusion steel ball, but self-centering when the major axis installation, and the both ends turning of 3m major axis has been realized to a clamping, has guaranteed the axiality that the major axis adds, has improved the machining precision.
2. This anchor clamps has installed location screw thread and location steel ball in advance on the pedestal, carries out major axis processing man-hour, need not to install once more, and easy operation has reduced numerical control equipment self requirement, when guaranteeing the quality, has improved efficiency.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a partial schematic view of FIG. 1;
FIG. 4 is a schematic view of the spring positioning member and the spring assembly;
fig. 5 is a use state diagram.
In the figure:
the device comprises a positioning bolt 1, a spring positioning part 2, a mounting block 21, a groove 211, a spring fixing rod 22, a spring 3, a steel ball 4, a seat body 5, a long shaft 6, a central hole 7, a threaded hole 71, a unthreaded hole 72 and a limiting hole 73.
Detailed Description
The following detailed description will be made of the fixture for ensuring coaxiality by automatic positioning according to the present invention with reference to the accompanying drawings.
As shown in fig. 1 to 4, the utility model discloses an automatic anchor clamps of axiality are guaranteed in location, its structure includes pedestal 5, positioning bolt 1, spring positioning part 2, spring 3 and steel ball 4, pedestal 5 is equipped with two positioning bolt 1, and positioning bolt 1 has guaranteed the position degree of major axis installation. The free end of the screw rod of the positioning bolt 1 extends to the outside of the seat body 5, and the part extending to the outside is matched with a threaded hole which is processed in advance by the long shaft 6, so that the position degree of the long shaft 6 is ensured. The center of the seat body 5 is provided with a center hole 7 with two communicated ends, a spring positioning component 2, a spring 3 and a steel ball 4 are arranged in the center hole 7, the steel ball 4 is arranged at one end of the center hole 7, one end of the spring 3 abuts against the steel ball 4, and the other end of the spring is connected with the spring positioning component 2.
As shown in fig. 3 and 4, the spring positioning member 2 is composed of a mounting block 21 and a spring fixing rod 22, wherein one end of the spring fixing rod 22 is provided with the mounting block 21, the mounting block 21 is cylindrical, the outer circumference of the mounting block is provided with an external thread, and the center of the free end face of the mounting block 21 is provided with a groove 211 for facilitating mounting. When the spring positioning component 2 is installed, the tool is matched with the groove 211 on the end surface of the installation block 21, and the tool is rotated to drive the spring positioning component 2 to move to a certain depth in the central hole of the seat body.
As shown in fig. 3, the central hole 7 is composed of a threaded hole 71, a unthreaded hole 72 and a limiting hole 73, the threaded hole 71 is in threaded fit with the external thread of the mounting block 21, the diameters of the threaded hole and the unthreaded hole are larger than the diameter of the steel ball 4, and the diameter of the limiting hole 73 is smaller than the diameter of the steel ball. One end of the unthreaded hole is provided with a threaded hole, the other end of the unthreaded hole is provided with a limiting hole, the steel ball 4 passes through the threaded hole, the unthreaded hole and the limiting hole in sequence when being arranged in the central hole 7, the smooth arrangement of the steel ball in the central hole is ensured because the diameters of the threaded hole and the unthreaded hole are larger than the diameter of the steel ball, and the limiting hole with the diameter smaller than the steel ball is arranged at the tail end of the unthreaded hole, so that the steel ball is.
The spring 3 is a pressure spring capable of bearing 0.3Mpa pre-pressure, so that the pressure generated by friction when the long shaft is installed can be borne, and meanwhile, the steel ball 4 can be compressed, so that the steel ball 4 is compressed into the central hole, and automatic centering is realized.
As shown in fig. 5, two positioning bolts 1 are arranged on the seat body 5, the two positioning bolts 1 are respectively arranged on two sides of the central hole of the seat body, and the extended free ends of the positioning bolts 1 are connected with two threaded holes which are processed in advance on the long shaft in a matching manner.
When one end of a long shaft 6 required to be processed is required to be drilled with a central hole according to requirements, two threaded holes required to be guaranteed by position degree are drilled and are matched with the positioning bolt 1 for installation. Firstly, a steel ball 4 is embedded into a central hole 7 of a seat body, a spring 3 is sleeved on a spring fixing rod of a spring positioning component in advance, an installation block 21 of the spring positioning component is in threaded fit with the central hole of the seat body 5, the spring positioning component is rotated by utilizing a groove on the end face of the installation block through a tool, the spring is extruded when the spring positioning component rotates, and the steel ball is pressed by the spring. When the spring positioning part 2 rotates to a certain depth, a pre-pressure of more than or equal to 0.3Mpa can be applied to the steel ball to compress the steel ball. Therefore, when the clamp is clamped on the long shaft, the center hole can provide a guiding function for the pre-pressed steel ball, and the steel ball is automatically adjusted, aligned and pressed into the center hole to realize automatic centering.
The utility model discloses an anchor clamps are through setting up the steel ball in the current seat body centre bore, through spring extrusion steel ball, but self-centering when the major axis installation, and the both ends turning of 3m major axis has been realized to a clamping, has guaranteed the axiality that the major axis adds, has improved the machining precision.
The foregoing is merely illustrative of some of the principles of the present invention and the description is not intended to limit the invention to the specific constructions and applications shown, so that all modifications and equivalents that may be utilized are within the scope of the invention.
Other technical features than those described in the specification are known to those skilled in the art.
Claims (5)
1. The fixture capable of automatically positioning and ensuring the coaxiality is characterized by comprising a base body, positioning bolts, a spring positioning component, a spring and a steel ball, wherein the base body is provided with the two positioning bolts, the free ends of screws of the positioning bolts extend to the outside of the base body, the center of the base body is provided with a center hole with two communicated ends, the spring positioning component, the spring and the steel ball are arranged in the center hole, the steel ball is arranged at one end of the center hole, one end of the spring abuts against the steel ball, and the other end of the spring is connected.
2. The jig for automatically positioning and ensuring coaxiality as claimed in claim 1, wherein the spring positioning member is composed of a mounting block and a spring fixing rod, the mounting block is provided with a mounting block at one end, the mounting block is cylindrical, the outer circumference of the mounting block is provided with an external thread, and a groove for facilitating mounting is provided at the center of the end face of the free end of the mounting block.
3. The fixture for ensuring coaxiality through automatic positioning according to claim 1, wherein the central hole is composed of a threaded hole, a unthreaded hole and a limiting hole, the threaded hole is in threaded fit with the external thread of the mounting block, the diameters of the threaded hole and the unthreaded hole are larger than the diameter of the steel ball, and the diameter of the limiting hole is smaller than the diameter of the steel ball.
4. The jig for automatically positioning ensuring coaxiality as claimed in claim 1 or 2, wherein the spring is a compression spring capable of withstanding a pre-pressure of 0.3 Mpa.
5. The automatic positioning and coaxiality ensuring clamp according to claim 1, wherein the base body is provided with two positioning bolts, the two positioning bolts are respectively arranged on two sides of a central hole of the base body, and free ends of the extending positioning bolts are matched and connected with two threaded holes which are pre-processed on the long shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920785043.3U CN209919382U (en) | 2019-05-28 | 2019-05-28 | Clamp capable of automatically positioning and ensuring coaxiality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920785043.3U CN209919382U (en) | 2019-05-28 | 2019-05-28 | Clamp capable of automatically positioning and ensuring coaxiality |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209919382U true CN209919382U (en) | 2020-01-10 |
Family
ID=69092174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920785043.3U Expired - Fee Related CN209919382U (en) | 2019-05-28 | 2019-05-28 | Clamp capable of automatically positioning and ensuring coaxiality |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209919382U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692482A (en) * | 2020-06-19 | 2020-09-22 | 中国电子科技集团公司第二十九研究所 | Mechanical limiting mechanism of rotary table with limited rotation angle range reaching +/-360 degrees |
| CN113295130A (en) * | 2021-05-20 | 2021-08-24 | 杭州电子科技大学 | Automatic centering mechanism for detecting pneumatic plug gauge |
-
2019
- 2019-05-28 CN CN201920785043.3U patent/CN209919382U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692482A (en) * | 2020-06-19 | 2020-09-22 | 中国电子科技集团公司第二十九研究所 | Mechanical limiting mechanism of rotary table with limited rotation angle range reaching +/-360 degrees |
| CN113295130A (en) * | 2021-05-20 | 2021-08-24 | 杭州电子科技大学 | Automatic centering mechanism for detecting pneumatic plug gauge |
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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: 20200110 Termination date: 20200528 |