CN217833240U - Novel internal grinding machine clamp with preposed cylinder - Google Patents
Novel internal grinding machine clamp with preposed cylinder Download PDFInfo
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- CN217833240U CN217833240U CN202221714083.7U CN202221714083U CN217833240U CN 217833240 U CN217833240 U CN 217833240U CN 202221714083 U CN202221714083 U CN 202221714083U CN 217833240 U CN217833240 U CN 217833240U
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Abstract
The utility model provides a novel internal grinder fixture with a preposed cylinder, which comprises a base and a film arranged at the right end of the base, wherein the other end of the base is connected with a machine tool spindle; a guide sleeve is fixed in the base; the periphery of the guide sleeve is connected with a top sleeve in a sliding manner; a piston is fixed at the left end of the top sleeve, an air cavity is formed by the piston and the inner wall of the left end of the base, and an air port for connecting the air cavity with an external air source is arranged on the base; three clamping jaws are annularly and fixedly arranged on the film at equal intervals, and the right end face of the top sleeve is abutted against the film and corresponds to the left end part of each clamping jaw; the clamping device also comprises a retainer arranged between the clamping jaws, and the retainer is fixed on the base through a connecting seat; and the retainer is provided with clamping blocks which correspond to the clamping claws one by one. The utility model discloses novel structure, anchor clamps and cylinder integration, compact structure, easy operation, its low in manufacturing cost, sexual valence relative altitude can improve the practicality and the application universality of the internal grinding machine of numerical control.
Description
Technical Field
The utility model relates to a mechanical fixture technical field, concretely relates to novel internal grinding machine anchor clamps of leading of cylinder.
Background
An oil cylinder of the numerical control internal grinding machine is a main component for controlling the clamping and loosening of the clamp. The existing oil cylinder is arranged at the rear end of a main shaft of a headstock, a clamp is arranged at the front end of the main shaft, and the existing oil cylinder and the clamp are connected by a pull rod (as shown in figure 1). When the clamp C clamps a test piece, the oil cylinder A jacks the film through the pull rod B, so that the clamping jaws on the clamp C are opened, and loading and unloading are facilitated. The pull rod B has the following three disadvantages that the pull rod B is long in length, parts are difficult to machine, the parts are frequently scrapped, and the cost performance is low; the second is that the oil leakage phenomenon can occur after the oil cylinder is used for a period of time; the third is that the part is many and the structure is complicated, and the installation maintenance is inconvenient, and the operation is more difficult.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a novel internal grinding machine clamp with a preposed cylinder.
In order to achieve the purpose, the utility model provides a novel internal grinding machine clamp with a preposed cylinder, which comprises a base and a film arranged at the right end of the base, wherein the other end of the base is connected with a main shaft of a machine tool; a guide sleeve is fixed in the base; the periphery of the guide sleeve is connected with a top sleeve in a sliding manner; a piston is fixed at the left end of the top sleeve, an air cavity is formed by the piston and the inner wall of the left end of the base, and an air port for connecting the air cavity with an external air source is arranged on the base; three clamping jaws are annularly and fixedly arranged on the film at equal intervals, and the right end face of the top sleeve is abutted against the film and corresponds to the left end part of each clamping jaw; the clamping device is characterized by also comprising a retainer arranged between the clamping jaws, wherein the retainer is fixed on the base through a connecting seat; and the retainer is provided with clamping blocks which correspond to the clamping claws one by one.
As a preferred arrangement of the utility model, the base comprises a flange and a middle disc, and the thin film is provided with a long bolt which penetrates through the middle disc and is connected with the flange; a fixed sleeve which penetrates through the base and is fixedly connected with the guide sleeve is coaxially fixed at the left end of the connecting disc; the piston is annular and is sleeved on the fixed sleeve; a positioning shaft is fixedly connected to the left side of the fixed sleeve; the positioning shaft is matched with an inner hole of a machine tool spindle, and the flange is fixed on the machine tool spindle.
As the utility model discloses a preferred setting, be provided with a plurality of supporting axles on the base, the connecting seat passes through the bolt fastening and is in on the supporting axle.
As the preferred arrangement of the utility model, the end face bearing is installed to the connecting seat inner circle.
As the utility model discloses an it sets up to prefer, the holder comprises the arc support body three the same and separation, all be provided with on each arc support body with the fixture block of jack catch one-to-one, and each arc support body rigid coupling respectively the connecting seat.
As the utility model discloses an it sets up preferably, each all install space ring and ball on the arc support body inner circle, space ring and ball pass through the steel wire to be fixed between arc support body inner circle and connecting seat terminal surface.
As the preferred setting of the utility model, the film material is 50CrVA.
The utility model has the advantages that:
when the utility model is used for processing a test piece, an air source enters the air cavity through the air port, the piston and the ejection sleeve move rightwards together under the action of air pressure, and the ejection sleeve ejects the film to open the clamping jaw in the process of moving rightwards, so that the clamping jaw is opened, and the retainer is loosened to facilitate loading and unloading; when a workpiece is clamped, the test piece is inserted along the direction of the ball and the space ring, so that the left end face of the test piece leans against the end face bearing, then the air supply is stopped, and the clamping jaw clamps the test piece through the retainer under the action of the inherent elastic recovery of the film, thereby achieving the effects of pitch circle centering and end face positioning. The utility model discloses novel structure, anchor clamps and cylinder integration, compact structure, easy operation. The power source adopts gas rather than hydraulic oil, so that the environmental protection is strong; the manufacturing cost is low, the cost performance is high, and the practicability and the application universality of the numerical control internal grinding machine can be improved.
Drawings
FIG. 1 is a schematic diagram of a prior art internal grinder fixture;
FIG. 2 is a front view of the novel internal grinding machine clamp with a preposed cylinder of the present invention;
fig. 3 is a sectional view of the novel internal grinding machine clamp with the preposed cylinder.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for purposes of illustration only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 2 to 3, the utility model provides a novel internal grinder fixture with a preposed cylinder, which comprises a base and a film 3 arranged at the right end of the base, wherein the other end of the base is connected with a main shaft of a machine tool; a guide sleeve 13 is fixed in the base; the periphery of the guide sleeve 13 is connected with a top sleeve 14 in a sliding manner; a piston 15 is fixed at the left end of the top sleeve 14, an air cavity 12 is formed by the piston 15 and the inner wall of the left end of the base, and an air port 18 for connecting the air cavity 12 with an external air source is arranged on the base; three clamping jaws 11 are annularly arranged and fixed on the film 3 at equal intervals, and the right end face of the top sleeve 14 is abutted against the film 3 and corresponds to the left end parts of the clamping jaws 11; the clamping device further comprises a retainer 10 arranged between the clamping jaws 11, and the retainer 10 is fixed on the base through a connecting seat 5; and the retainer 10 is provided with clamping blocks 19 which are in one-to-one correspondence with the clamping jaws 11.
As a preferable configuration of the embodiment of the present invention, further, the base includes a flange 1 and an intermediate disc 2, and the thin film 3 is provided with a long bolt 20 penetrating through the intermediate disc 2 and connected to the flange 1; a fixed sleeve 16 which penetrates through the base and is fixedly connected with the guide sleeve 13 is coaxially fixed at the left end of the flange 1; the piston 15 is annular and is sleeved on the fixed sleeve 16; a positioning shaft 17 is fixedly connected to the left side of the fixing sleeve 16; the positioning shaft 17 is matched with an inner hole of a machine tool spindle, and the flange 1 is fixed on the machine tool spindle.
As the utility model discloses preferred setting, furtherly, be provided with a plurality of supporting axles 4 on the base, connecting seat 5 passes through bolt 21 to be fixed on the supporting axle 4.
As a preferable configuration of the embodiment of the present invention, further, the inner ring of the connecting seat 5 is mounted with an end face bearing 6.
As the utility model discloses the preferred setting of embodiment, furtherly, holder 10 comprises the arc support body of three the same and separation, all be provided with on each arc support body with the fixture block 19 of 11 one-to-ones of jack catch, and each arc support body rigid coupling respectively connecting seat 5.
As the utility model discloses preferred setting, furtherly, each all install spacer ring 9 and ball 8 on the arc support body inner circle, spacer ring 8 and ball 9 pass through steel wire 22 to be fixed between arc support body inner circle and connecting seat 5 terminal surface.
As the preferred setting of the utility model, the film material is 50CrVA.
The utility model discloses a theory of operation and working process:
when the test piece 7 is clamped, an air source enters the air cavity 12 through the air port 18, the piston 15 and the ejector sleeve 14 move rightwards together under the action of air pressure, the ejector sleeve 14 ejects the film 3 in the process of rightward movement, the clamping jaws 11 are opened, the retainer 10 is loosened, and loading and unloading can be facilitated; then, the test piece 7 is inserted along the direction of the ball 8 and the space ring 9, so that the left end face of the test piece 7 is leaned against the end face support 6, then the air supply is stopped, and the clamping jaws 11 clamp the test piece 7 through the retainer 10 under the inherent elastic recovery action of the film 3, thereby achieving the effects of pitch circle centering and end face positioning.
The utility model discloses novel structure, anchor clamps and cylinder integration, compact structure, easy operation. The power source adopts gas rather than hydraulic oil, so that the environmental protection is strong; the manufacturing cost is low, the cost performance is high, and the practicability and the application universality of the numerical control internal grinding machine can be improved.
Moreover, those skilled in the art will appreciate that although some embodiments described herein include some features included in other embodiments, not other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims above, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
Claims (7)
1. A novel internal grinder clamp with a preposed cylinder is characterized by comprising a base and a film arranged at the right end of the base, wherein the other end of the base is connected with a machine tool spindle; a guide sleeve is fixed in the base; the periphery of the guide sleeve is connected with a top sleeve in a sliding manner; a piston is fixed at the left end of the top sleeve, an air cavity is formed by the piston and the inner wall of the left end of the base, and an air port for connecting the air cavity with an external air source is arranged on the base; three clamping jaws are annularly and fixedly arranged on the film at equal intervals, and the right end face of the top sleeve is abutted against the film and corresponds to the left end parts of the clamping jaws; the clamping device is characterized by also comprising a retainer arranged between the clamping jaws, wherein the retainer is fixed on the base through a connecting seat; and the retainer is provided with clamping blocks which correspond to the clamping claws one by one.
2. The novel internal grinding machine clamp with the preposed cylinder as claimed in claim 1, wherein the base comprises a connecting disc and a middle disc, and the thin film is provided with a long bolt which penetrates through the middle disc and is connected with the connecting disc; a fixed sleeve which penetrates through the base and is fixedly connected with the guide sleeve is coaxially fixed at the left end of the connecting disc; the piston is annular and is sleeved on the fixed sleeve; a positioning shaft is fixedly connected to the left side of the fixed sleeve; the positioning shaft is matched with an inner hole of a machine tool spindle, and the connecting disc is fixed on the machine tool spindle.
3. The cylinder-advanced novel internal grinding machine jig as claimed in claim 1, wherein a plurality of support shafts are provided on the base, and the connecting base is fixed to the support shafts by bolts.
4. The cylinder lead new internal grinding machine clamp of claim 1, wherein the connecting seat inner ring is mounted with an end face bearing.
5. The novel internal grinding machine clamp with the preposed cylinder as claimed in claim 1, wherein the retainer consists of three identical and separated arc-shaped frame bodies, each arc-shaped frame body is provided with clamping blocks which correspond to the clamping jaws one by one, and each arc-shaped frame body is fixedly connected with the connecting seat respectively.
6. The novel internal grinding machine clamp with the preposed cylinder as claimed in claim 5, wherein a spacer ring and a ball are arranged on each arc-shaped frame body inner ring, and the spacer ring and the ball are fixed between the arc-shaped frame body inner ring and the end face of the connecting seat through steel wires.
7. The cylinder-advanced novel internal grinding machine clamp as claimed in claim 1, wherein the thin film is made of 50CrVA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221714083.7U CN217833240U (en) | 2022-07-05 | 2022-07-05 | Novel internal grinding machine clamp with preposed cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221714083.7U CN217833240U (en) | 2022-07-05 | 2022-07-05 | Novel internal grinding machine clamp with preposed cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217833240U true CN217833240U (en) | 2022-11-18 |
Family
ID=84035475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221714083.7U Active CN217833240U (en) | 2022-07-05 | 2022-07-05 | Novel internal grinding machine clamp with preposed cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217833240U (en) |
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2022
- 2022-07-05 CN CN202221714083.7U patent/CN217833240U/en active Active
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