CN202318208U - Dismounting device of grinding work fixture - Google Patents
Dismounting device of grinding work fixture Download PDFInfo
- Publication number
- CN202318208U CN202318208U CN2011204759766U CN201120475976U CN202318208U CN 202318208 U CN202318208 U CN 202318208U CN 2011204759766 U CN2011204759766 U CN 2011204759766U CN 201120475976 U CN201120475976 U CN 201120475976U CN 202318208 U CN202318208 U CN 202318208U
- Authority
- CN
- China
- Prior art keywords
- pull rod
- positioning baffle
- shaft core
- pull bar
- positioning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a dismounting device of a grinding work fixture, which comprises a pull rod, a positioning baffle, a locking nut and an impact ring, wherein an external thread is arranged on one end of the pull rod, a small cylinder with the diameter of less than the diameter of other parts of the pull rod is arranged on the other end of the pull rod, and an external thread is arranged on the small cylinder; the positioning baffle is provided with a center hole, and the positioning baffle is sleeved on the small cylinder of the pull rod; the locking nut is rotatably sleeved on the small cylinder and compacts the positioning baffle, and the impact ring is sleeved on the pull rod and is in clearance fit with the pull rod. When the dismounting device of the grinding work fixture is used, one end of the pull rod is screwed in an internal thread hole of a positioning shaft core, the impact ring is pulled to be in close to the positioning shaft core, and then is pushed with force to knock the positioning baffle, the positioning baffle pulls the positioning shaft core through the pull rod due to the impact force to leftwards move, and the positioning shaft core gradually quits from an inner hole of a hollow shaft under the condition of continuously impacting the positioning baffle by the impact ring. The dismounting device and the positioning shaft core can be repeatedly used, thus the processing cost is lowered.
Description
Technical field
The utility model relates to a kind of anchor clamps provision for disengagement, relates in particular to the provision for disengagement of a kind of grinding frock clamp.
Background technology
Often need the hollow axial workpiece of processing in the machine-building.The demanding hollow axial workpiece work in-process of dimensional accuracy and roughness need pass through grinding and could accomplish.Because the general wall thickness dimension of hollow axial workpiece is less, the clamping difficulty, and deform easily.In order to guarantee to process the part that adheres to specification, often need design hollow axial workpiece is fixed on the mill machining tool fixture on the grinding machine centre of location hole.
The mill machining tool fixture mainly adopts two locating shaft cores, and the outer face of locating shaft core is provided with center positioning hole along center line.Use in the time of to grind machining tool fixture, at first in the two ends of hollow shaft part to be ground, squeeze into the locating shaft core with similar instruments such as iron hammers respectively, then the center positioning hole of locating shaft core is fixed through the top on the grinding machine.
After hollow shaft is by grinding, need the locating shaft core in this hollow shaft two ends endoporus is taken out.In the prior art, often be employed in the outside welding steel of locating shaft core, be welded with the block that supplies iron hammer to beat on the steel plate, with the provision for disengagement of the steel plate of welding and baffle plate as processing tool.The operator exerts oneself beats baffle plate, and baffle plate outwards withdraws from the stressed locating shaft core that is connected with steel plate that drives down.Above-mentioned employing welding steel and block; And beat the mode that block withdraws from the locating shaft core and mainly have following defective: when dismantling this locating shaft core; Need welding steel and block on the locating shaft core; Steel plate and baffle plate and locating shaft core connect as one, and have both made the locating shaft core not reuse, and cause processing cost to increase again.
The utility model content
To the above-mentioned weak point that exists in the prior art, the utility model provides a kind of locating shaft core that can make to obtain reusing the grinding frock clamp provision for disengagement that can cut down finished cost again.
The purpose of the utility model is achieved in that the provision for disengagement of grinding frock clamp, comprises pull bar, positioning baffle, locking nut and bump ring; One end of said pull bar is provided with external screw thread, and the other end of pull bar is the small column of diameter less than pull bar remainder diameter, and said small column is provided with external screw thread; Said positioning baffle has a centre bore, and positioning baffle is enclosed within on the small column of pull bar through this centre bore; Said locking nut rotation set is on small column and compress positioning baffle, said bump ring set on pull bar and with the pull bar matched in clearance.
As a kind of preferred version of the utility model, the cross section of said bump ring is an oval structure.
The beneficial effect of the utility model is: when using this grinding frock clamp provision for disengagement; Only need an end of pull bar is screwed in the internal thread hole of locating shaft core; To clash into ring earlier and move near the locating shaft core, and enforce bump hoop positioning baffle bump then, the impact that positioning baffle receives is moved to the left through pull bar pulling locating shaft core; Along with the bump positioning baffle that the bump ring does not stop, the locating shaft core withdraws from the endoporus of hollow shaft gradually.This device and locating shaft core are reusable, have reduced processing cost again.
Description of drawings
Fig. 1 is the structural representation of grinding frock clamp provision for disengagement.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done to describe in further detail.
As shown in Figure 1, the provision for disengagement of grinding frock clamp comprises pull bar 1, positioning baffle 2, locking nut 3 and bump ring 4.One end of pull bar 1 is provided with external screw thread, and the other end of pull bar 1 is the small column 5 of diameter less than pull bar 1 remainder diameter, and small column 5 is provided with external screw thread.Positioning baffle 2 has a centre bore, and positioning baffle 2 is enclosed within on the small column 5 of pull bar 1 through this centre bore.Locking nut 3 rotation sets are on small column 5 and compress positioning baffle 2, bump ring 4 be enclosed within on the pull bar 1 and with pull bar 1 matched in clearance.
In the present embodiment, the cross section of bump ring 4 is an oval structure, when being bump ring 4 these positioning baffles 2 of bump of oval structure through this cross section, can avoid causing positioning baffle 2 and bump ring 4 to damage because of the corner angle of part with bump ring 4 bumps.
When using this grinding frock clamp provision for disengagement; At first the right-hand member with pull bar 1 screws in the internal thread hole of the locating shaft core 7 in the hollow shaft 6 one end axis holes, will clash into ring 4 again and be enclosed within on the pull bar 1, and positioning baffle 2 is enclosed within on the small column 5 of pull bar 1; Make this positioning baffle 2 lean against the step side of small column 5 and pull bar 1 formation; At last with locking nut 3 rotation sets on the small column 5 of pull bar 1, and the locking nut 3 of inwardly screwing makes locking nut 3 compress positioning baffle 2.When the locating shaft core 7 of dismounting in the hollow shaft 6; To clash into ring 4 earlier moves near locating shaft core 7; Enforce bump ring 4 then to positioning baffle 2 bumps; The impact that positioning baffle 2 receives is moved to the left through pull bar 1 pulling locating shaft core 7, and along with the bump positioning baffle 2 that bump ring 4 does not stop, locating shaft core 7 withdraws from the endoporus of hollow shaft 6 gradually.
Explanation is at last; Above embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Although with reference to preferred embodiment the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model; And not breaking away from the aim and the scope of the utility model technical scheme, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (2)
1. grinding frock clamp provision for disengagement is characterized in that: comprise pull bar (1), positioning baffle (2), locking nut (3) and bump ring (4); One end of said pull bar (1) is provided with external screw thread, and the other end of pull bar (1) is the small column (5) of diameter less than pull bar (1) remainder diameter, and said small column (5) is provided with external screw thread; Said positioning baffle (2) has a centre bore, and positioning baffle (2) is enclosed within on the small column (5) of pull bar (1) through this centre bore; Positioning baffle (2) is gone up and compressed to said locking nut (3) rotation set at small column (5), said bump ring (4) be enclosed within that pull bar (1) is gone up and with pull bar (1) matched in clearance.
2. grinding frock clamp according to claim 1 provision for disengagement is characterized in that: the cross section of said bump ring (4) is an oval structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204759766U CN202318208U (en) | 2011-11-25 | 2011-11-25 | Dismounting device of grinding work fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204759766U CN202318208U (en) | 2011-11-25 | 2011-11-25 | Dismounting device of grinding work fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202318208U true CN202318208U (en) | 2012-07-11 |
Family
ID=46430205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204759766U Expired - Fee Related CN202318208U (en) | 2011-11-25 | 2011-11-25 | Dismounting device of grinding work fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202318208U (en) |
-
2011
- 2011-11-25 CN CN2011204759766U patent/CN202318208U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20131125 |