CN217122446U

CN217122446U - Chuck limit structure for internal expanding clamp

Info

Publication number: CN217122446U
Application number: CN202220462453.6U
Authority: CN
Inventors: 曲子彧; 曲政
Original assignee: Kulaite Tianjin Precision Machinery Co ltd
Current assignee: Kulaite Tianjin Precision Machinery Co ltd
Priority date: 2022-03-04
Filing date: 2022-03-04
Publication date: 2022-08-05
Anticipated expiration: 2032-03-04

Abstract

The utility model discloses a chuck limiting structure for an internal expanding clamp, which comprises a chuck plate, a chuck, a limiting mechanism and a sleeve protection mechanism, wherein the limiting mechanism consists of a lantern ring, a proximity sensor, a mounting disc, a screw hole A, a screw hole B and a fastening bolt, the lantern ring is sleeved outside the chuck, the proximity sensor is arranged on the inner wall of a ring body of the lantern ring, the limiting mechanism is arranged between the chuck plate and the chuck, after the lantern ring is jointed with the chuck plate by the mounting disc, the screw hole A of the mounting disc is communicated with the screw hole B on the surface of the chuck plate, the fastening bolt is screwed into the screw hole A and the screw hole B for screwing and locking, the mounting disc is fixed on the surface of the chuck plate, when the outward opening range of the chuck plate is overlarge, the outer wall of the chuck plate is contacted with the proximity sensor on the inner wall of the lantern ring, the proximity sensor can be connected with a signal end of a controller to enable the controller to limit the follow-up opening of the chuck plate after receiving signals, thereby preventing the chuck from rubbing against the chuck.

Description

Chuck limit structure for internal expanding clamp

Technical Field

The utility model relates to a mechanical fixture technical field, in particular to chuck limit structure for internal expanding anchor clamps.

Background

The jig is a device for fixing a processing object to a correct position for receiving construction or inspection in a machine manufacturing process, and is also called a jig (qi a/j ǜ). In a broad sense, any device used to quickly, conveniently and safely mount a workpiece at any stage in a process may be referred to as a jig. The fixture generally comprises a positioning element (for determining the correct position of a workpiece in the fixture), a clamping device, a tool setting guide element (for determining the relative position of the tool and the workpiece or guiding the direction of the tool), an indexing device (for enabling the workpiece to complete the processing of a plurality of stations in one-time installation, including a rotary indexing device and a linear movement indexing device), a connecting element, a fixture body (a fixture base), and the like.

Patent number CN201020149477.3 discloses a protective structure for an inner expansion clamp chuck, which relates to a mechanical clamp, the existing inner expansion clamp chuck lacks protective measures and can damage the inner expansion clamp chuck, the utility model is that a protective ferrule is sleeved outside the inner expansion clamp chuck with a pull rod penetrating through an axial inner hole; an annular groove is arranged on the inner wall of the further protective ferrule, and a rubber ring which can contact the outer wall of the internal expansion chuck is arranged in the annular groove. When the pull rod is empty-pulled, the protective sleeve ring has a limiting effect on the inner expansion chuck, so that the inner expansion chuck is prevented from being damaged due to excessive expansion; when the inner expansion chuck is tensioned by the pull rod and expanded, the rubber ring is extruded on the outer wall of the inner expansion chuck to generate deformation, the flexible protection effect is achieved, and the precision of the clamp is not affected.

1. The inner expanding clamp in the prior art can open a chuck to clamp a workpiece or a prop when in work, the outer side of the chuck of the inner expanding clamp is lack of a good limiting mechanism, so that the inner wall of the clamp is easy to rub when the chuck is excessively expanded, and the clamp is easy to rub and damage when the clamp is used for a long time.

2. The inner expanding clamp in the prior art can open a chuck to clamp a workpiece or a prop when in work, the outer side of the inner expanding clamp lacks a better sheathing mechanism, and the inner expanding clamp is easy to be corroded by external liquid when being installed and not used at a machine tool.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides an internal expanding is chuck limit structure for anchor clamps can effectively solve the problem among the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an internal expanding is chuck limit structure for anchor clamps, includes (holding) chuck and chuck, still includes stop gear and cover and protects the mechanism, stop gear comprises the lantern ring, proximity sensor, mounting disc, screw A, screw B and gim peg, the lantern ring has been cup jointed in the outside of chuck, and the ring body inner wall of the lantern ring installs proximity sensor, the bottom fixedly connected with mounting disc of the lantern ring, and the surface of mounting disc has seted up screw A, screw B has been seted up on the (holding) chuck surface of screw A below, and the screw thread has connect the gim peg soon between screw A and the screw B, cover and protect the mechanism and comprise outer sleeve, inner skleeve, cock post and strip arris.

Furthermore, an inner sleeve is arranged in the outer sleeve in a protruding mode, a plug column is arranged in the middle of the inner sleeve in a protruding mode, and ribs are arranged on the inner wall surfaces of the outer sleeve and the inner sleeve in a protruding mode.

Further, a clamping head is arranged in the middle of the clamping disc.

Furthermore, the inner diameter of the lantern ring is larger than the outer diameter of the chuck, and a gap is reserved between the lantern ring and the chuck; a gap is reserved after the larger ring body of the lantern ring is sleeved outside the chuck for opening the chuck.

Furthermore, the structure of the mounting disc is an annular disc body, and a hole is formed in the middle of the mounting disc; the annular disc body of the mounting disc is provided with a hole for the chuck to open outwards.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses a be provided with stop gear between (holding) chuck and chuck, the lantern ring is with the help of mounting disc and (holding) chuck laminating back, the screw A of mounting disc and the surperficial screw B drill way intercommunication of (holding) chuck, use fastening bolt screw in screw A and screw B to connect the locking soon this moment in, the surface at the (holding) chuck is fixed to the mounting disc this moment, when the chuck of (holding) chuck outwards opens the range too big, the proximity sensor of the outer wall contact lantern ring inner wall department of chuck, proximity sensor can connection director's signal end provides the signal this moment, make the controller receive can restrict the follow-up of chuck and open after the signal, thereby prevent chuck friction (holding) chuck.

2. The utility model discloses a be equipped with the cover and protect mechanism, when the (holding) chuck was installed in lathe department, can be with the outer endotheca in the outside of (holding) chuck, the inside inner skleeve of outer skleeve then overlaps in the chuck outside this moment, and the stopper post in the inner skleeve then can imbed the middle part downthehole body of chuck, outer skleeve and inner skleeve inner wall all have a arris protruding increase friction force simultaneously, cover this moment and protect the mechanism and can overlap in the outside of (holding) chuck and protect, prevent that (holding) chuck and chuck from receiving corrosive liquids's contact and damaging.

Drawings

Fig. 1 is the overall structure schematic diagram of the chuck limiting structure for the internal expanding fixture of the present invention.

Fig. 2 is an exploded view of the limiting mechanism of the chuck limiting structure for the internal expanding clamp of the present invention.

Fig. 3 is a schematic view of the structure of the sheathing mechanism of the chuck limiting structure for the internal expanding fixture of the present invention.

In the figure: 1. a chuck; 2. a chuck; 3. a limiting mechanism; 301. a collar; 302. a proximity sensor; 303. mounting a disc; 304. a screw hole A; 305. a screw hole B; 306. fastening bolts; 4. a sheathing mechanism; 401. an outer sleeve; 402. an inner sleeve; 403. a plug; 404. and (6) strip edges.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-3, a chuck limiting structure for an internal expanding clamp includes a chuck 1 and a chuck 2, and further includes a limiting mechanism 3 and a sheath mechanism 4, where the limiting mechanism 3 includes a collar 301, a proximity sensor 302, a mounting disc 303, a screw hole a304, a screw hole B305 and a fastening bolt 306, the collar 301 is sleeved on the outer side of the chuck 2, the proximity sensor 302 is installed on the inner wall of the collar 301, the mounting disc 303 is fixedly connected to the bottom end of the collar 301, the screw hole a304 is formed on the surface of the mounting disc 303, the screw hole B305 is formed on the surface of the chuck 1 below the screw hole a304, the fastening bolt 306 is screwed between the screw hole a304 and the screw hole B305, and the sheath mechanism 4 includes an outer sleeve 401, an inner sleeve 402, a plug 403 and a strip rib 404.

Wherein, an inner sleeve 402 protrudes from the inner part of the outer sleeve 401, a plug 403 protrudes from the middle part of the inner sleeve 402, and ribs 404 protrude from the inner wall surfaces of the outer sleeve 401 and the inner sleeve 402.

Wherein, the middle part of the chuck 1 is provided with a clamping head 2.

The inner diameter of the lantern ring 301 is larger than the outer diameter of the chuck 2, and a gap is reserved between the lantern ring 301 and the chuck 2; the larger ring body of the lantern ring 301 is sleeved outside the chuck 2, and a gap is left for opening the chuck 2.

The structure of the mounting disc 303 is an annular disc body, and a hole is formed in the middle of the mounting disc 303; the annular disc body of the mounting disc 303 is provided with a hole for the chuck 2 to open outwards.

It should be noted that, the utility model relates to a chuck limit structure for internal expanding clamp, a limit mechanism 3 is arranged between a chuck 1 and a chuck 2, after a sleeve ring 301 is attached to the chuck 1 by means of a mounting disc 303, a screw hole A304 of the mounting disc 303 is communicated with a screw hole B305 on the surface of the chuck 1, at this time, a fastening bolt 306 is used to screw in the screw hole A304 and the screw hole B305 for screwing and locking, at this time, the mounting disc 303 is fixed on the surface of the chuck 1, when the outward opening range of the chuck 2 of the chuck 1 is too large, the outer wall of the chuck 2 contacts with a proximity sensor 302 on the inner wall of the sleeve ring 301, at this time, the proximity sensor 302 can be connected with a signal end of a controller to provide signals, so that the controller can limit the subsequent opening of the chuck 2 after receiving the signals, thereby preventing the chuck 2 from rubbing the chuck 1, through being provided with a sleeve protection mechanism 4, when the chuck 1 is installed at a machine tool, the outer sleeve 401 can be sleeved on the outer side of the chuck 1, at the moment, the inner sleeve 402 in the outer sleeve 401 is sleeved outside the chuck 2, the plug 403 in the inner sleeve 402 can be embedded into the middle hole body of the chuck 2, and simultaneously, the inner walls of the outer sleeve 401 and the inner sleeve 402 are provided with ribs 404 to increase friction force, and the sheathing mechanism 4 can be sheathed outside the chuck 1 and the chuck 2 to prevent the chuck 1 and the chuck 2 from being damaged due to contact of corrosive liquid.

The utility model relates to a chuck spacing structure for an internal expanding clamp, which comprises a chuck 1 and a chuck plate; 2. a chuck; 3. a limiting mechanism; 301. a collar; 302. a proximity sensor; 303. mounting a disc; 304. a screw hole A; 305. a screw hole B; 306. fastening bolts; 4. a sheathing mechanism; 401. an outer sleeve; 402. an inner sleeve; 403. a plug; 404. the ribs and elements are standard parts or elements known to those skilled in the art, and their structure and principle are known to those skilled in the art through technical manuals or through routine experimentation.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an internal expanding is chuck limit structure for anchor clamps, includes (holding) chuck (1) and chuck (2), its characterized in that: still include stop gear (3) and cover and protect mechanism (4), stop gear (3) comprise lantern ring (301), proximity sensor (302), mounting disc (303), screw A (304), screw B (305) and fastening bolt (306), lantern ring (301) has been cup jointed in the outside of chuck (2), and the ring inner wall of lantern ring (301) installs proximity sensor (302), the bottom fixedly connected with mounting disc (303) of lantern ring (301), and the surface of mounting disc (303) has seted up screw A (304), screw B (305) have been seted up on chuck (1) surface of screw A (304) below, and screw thread has connect fastening bolt (306) soon between screw A (304) and screw B (305), cover and protect mechanism (4) to comprise outer sleeve (401), inner sleeve (402), stopper post (403) and strip arris (404).

2. The chuck limit structure for the internal expanding clamp according to claim 1, wherein: an inner sleeve (402) protrudes from the inner part of the outer sleeve (401), a plug column (403) protrudes from the middle part of the inner sleeve (402), and ribs (404) protrude from the inner wall surfaces of the outer sleeve (401) and the inner sleeve (402).

3. The chuck limit structure for the internal expanding clamp according to claim 1, wherein: the middle part of the chuck (1) is provided with a chuck (2).

4. The chuck limit structure for the internal expanding clamp according to claim 1, wherein: the inner diameter of the lantern ring (301) is larger than the outer diameter of the chuck (2), and a gap is reserved between the lantern ring (301) and the chuck (2).

5. The chuck limit structure for the internal expanding clamp according to claim 1, wherein: the structure of the mounting disc (303) is an annular disc body, and a hole is formed in the middle of the mounting disc (303).