CN221020733U - Machining clamp for cavity type cast parts - Google Patents

Abstract

The utility model discloses a machining fixture for cavity casting parts, which comprises a working table plate, wherein a connecting shaft is rotatably arranged at the center of the working table plate, a supporting plate is fixedly arranged at the top of the connecting shaft, a driving assembly is arranged below the working table plate, a plurality of clamping mechanisms are uniformly arranged on the supporting plate, each clamping mechanism comprises a hollow sleeve fixedly arranged on the working table plate, a double-rotation screw is longitudinally rotatably arranged in each hollow sleeve, moving blocks are in threaded connection with the upper side and the lower side of each double-rotation screw, two connecting seats I are integrally arranged on each moving block, and two clamping plates are arranged on the outer side of each hollow sleeve. The clamping mechanism is arranged, the rotation of the double-rotation-direction screw is realized by rotating the hand wheel, the outward spreading of the two clamping plates is realized by the opposite movement of the two moving blocks on the double-rotation-direction screw, so that the clamping of the cavity casting parts is realized from inside, and the driving assembly is arranged, and the processing efficiency of the parts can be improved.

Description

Machining clamp for cavity type cast parts

Technical Field

The utility model relates to the technical field of mechanical clamps, in particular to a machining clamp for cavity casting parts.

Background

After the machine parts are formed, a series of subsequent processes, such as polishing, anti-corrosion and rust-proof spraying, inspection and detection, are required, and the device for fixing the machining object in the correct position to receive the construction or the detection during the manufacturing process is generally called a fixture.

Chinese patent publication No. CN107756274a discloses a part fixing device, which is beneficial to uniformity of stress of each point on the clamping surface, stability of relative position of the fixed clamping block and the movable clamping block, and long service life. However, the applicant believes that the above technique has the following drawbacks: the technology clamps large cavity parts from the outside, so that the inner wall of the parts cannot be clamped, and the fixing effect of the parts is poor. The present device was invented by studying the above problems.

Disclosure of utility model

In order to overcome the defects in the prior art, the utility model provides a machining clamp for a cavity casting part, which solves the problem that the clamping of the inner wall of the part cannot be realized due to the fact that the clamping is carried out from the outside when the large cavity part is clamped in the prior art.

In order to achieve the above object, the present utility model provides the following technical solutions: the utility model provides a die cavity class cast spare part machining anchor clamps, includes the work platen, work platen central point puts and rotates installs the connecting axle, connecting axle top fixed mounting has the layer board, work platen below is provided with drive assembly, evenly be provided with a plurality of fixture on the layer board, fixture includes fixed mounting the cavity sleeve on the work platen, vertically rotate in the cavity sleeve and install the bispin to the screw rod, bispin is to screw rod top fixed mounting has the hand wheel, bispin is to equal threaded connection in both sides about the screw rod has the movable block, an organic whole is provided with two connecting seat one on the movable block, the cavity sleeve outside is provided with two splint, the inboard upper and lower both ends of splint are all fixed mounting has connecting seat two, connecting seat one with movable mounting has the connecting rod between the connecting seat two.

Optionally, two backing plates are fixedly installed on the connecting shaft, and the two backing plates are respectively arranged above and below the working table plate, wherein the backing plate arranged on the upper layer is contacted with the top of the working table plate, and the backing plate arranged on the lower layer is contacted with the bottom of the working table plate.

Optionally, the driving assembly comprises a gear ring fixedly installed on the connecting shaft, a frame is fixedly installed at the bottom of the working table plate, a motor is fixedly installed on the frame, and a gear meshed and connected with the gear ring is fixedly installed on an output shaft of the motor.

Optionally, an included angle between the two connecting seats I arranged on the same moving block is 180 degrees, and an included angle between the two clamping plates arranged on the outer side of the hollow sleeve is 180 degrees.

Optionally, two through grooves are formed in the hollow sleeve, the two through grooves are symmetrically arranged, the width of each through groove is equal to the width of the corresponding connecting seat I, and the connecting seat I penetrates through the corresponding through groove.

Compared with the prior art, the utility model has the beneficial effects that:

1. The clamping mechanism is arranged on the machining clamp for the cavity casting parts, the rotation of the double-rotation-direction screw is realized by rotating the hand wheel, and the outward spreading of the two clamping plates is realized by utilizing the opposite movement of the two moving blocks on the double-rotation-direction screw, so that the clamping of the cavity casting parts is realized from the inside, the structural design is reasonable, and the use is convenient;

2. The die cavity type casting part machining fixture is provided with a driving assembly, a motor is used as a power element, the rotation of the supporting plate, the clamping mechanism and the die cavity type casting part in the clamping state is realized under the connection effect of the gear ring and the gear, the operation staff can conveniently process the part at multiple positions on the premise of not moving the operation staff, and the processing efficiency is improved.

Drawings

For a clearer description of embodiments of the present utility model or technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic view of the overall structure provided by the present utility model;

FIG. 2 is a front view of the overall structure provided by the present utility model;

FIG. 3 is a schematic view of the installation of the coupling, pallet and shim plate provided by the present utility model;

Fig. 4 is a schematic structural diagram of a clamping mechanism provided by the present utility model.

Reference numerals illustrate:

1. A work platen; 2. a connecting shaft; 3. a supporting plate; 4. a drive assembly; 401. a gear ring; 402. a frame; 403. a motor; 404. a gear; 5. a backing plate; 6. a clamping mechanism; 601. a hollow sleeve; 602. a double-flighted screw; 603. a hand wheel; 604. a moving block; 605. a first connecting seat; 606. a clamping plate; 607. a second connecting seat; 608. a connecting rod; 609. and (5) through grooves.

Detailed Description

Other advantages and advantages of the present utility model will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The present application will be further described in detail below with reference to the drawings and detailed description for the purpose of enabling those skilled in the art to better understand the aspects of the present application.

Referring to fig. 1-3, the machining fixture for the cavity type cast parts of the embodiment comprises a working table plate 1, wherein supporting legs are fixedly arranged at four corners of the bottom of the working table plate 1 and used for guaranteeing stability of the device in use. The connecting shaft 2 is rotatably arranged at the center of the working table plate 1, two base plates 5 are fixedly arranged on the connecting shaft 2, the two base plates 5 are respectively arranged above and below the working table plate 1, wherein the base plate 5 arranged on the upper layer is contacted with the top of the working table plate 1, the base plate 5 arranged on the lower layer is contacted with the bottom of the working table plate 1, and the limit of the connecting shaft 2 in the rotation process is realized by arranging the base plates 5.

Referring to fig. 1 and 2, a driving component 4 is arranged below a working platform plate 1, the driving component 4 comprises a gear ring 401 fixedly installed on a connecting shaft 2, a frame 402 is fixedly installed at the bottom of the working platform plate 1, a motor 403 is fixedly installed on the frame 402, a gear 404 in meshed connection with the gear ring 401 is fixedly installed on an output shaft of the motor 403, an operator connects the motor 403 with an external power supply in the use process, the motor 403 is started, the gear 404 is driven to rotate by an output shaft of the motor 403, and the gear 404 is in meshed connection with the gear ring 401, so that the gear ring 401 synchronously rotates, and rotation of the connecting shaft 2 is realized.

Referring to fig. 1-4, a supporting plate 3 is fixedly installed on the top of the connecting shaft 2, and a plurality of clamping mechanisms 6 are uniformly arranged on the supporting plate 3, specifically, three clamping mechanisms 6 are arranged in the embodiment, and an included angle between two adjacent clamping mechanisms 6 is 120 °. The clamping mechanism 6 comprises a hollow sleeve 601 fixedly arranged on the working table plate 1, a double-rotation-direction screw 602 is longitudinally arranged in the hollow sleeve 601 in a rotating mode, a hand wheel 603 is fixedly arranged at the top of the double-rotation-direction screw 602, and rotation of the double-rotation-direction screw 602 can be achieved by rotating the hand wheel 603 when the double-rotation-direction screw 602 is used. The upper side and the lower side of the double-rotation-direction screw 602 are both in threaded connection with the movable blocks 604, the two movable blocks 604 are symmetrically arranged up and down by taking the horizontal central surface of the double-rotation-direction screw 602 as a symmetrical surface, two first connecting seats 605 are integrally arranged on the movable blocks 604, an included angle between the two first connecting seats 605 arranged on the same movable block 604 is 180 degrees, the two first connecting seats 605 are symmetrically arranged, two clamping plates 606 are arranged outside the hollow sleeve 601, an included angle between the two clamping plates 606 arranged outside the hollow sleeve 601 is 180 degrees, the two clamping plates 606 are symmetrically arranged, the two connecting seats 607 are fixedly arranged at the upper end and the lower end of the inner side of the clamping plate 606, in the same clamping mechanism 6, the positions of the four first connecting seats 605 are in one-to-one correspondence with the positions of the four second connecting seats 607, and a connecting rod 608 is movably arranged between the first connecting seats 605 and the second connecting seats 607.

Referring to fig. 4, two through grooves 609 are formed in the hollow sleeve 601, the two through grooves 609 are symmetrically arranged, the width of each through groove 609 is equal to that of the corresponding connecting seat 605, and the connecting seat 605 passes through the corresponding through groove 609, so that the limiting of the connecting seat 605 is realized, namely, the limiting of the moving block 604 is realized, and in the process of rotating the double-rotation-direction screw 602, the moving block 604 in threaded connection with the double-rotation-direction screw 602 longitudinally moves.

When the clamping mechanism is used, an operator places a cavity type casting part outside the clamping mechanism 6, then the operator rotates the hand wheel 603, the hand wheel 603 drives the double-rotation-direction screw 602 to rotate, in the process of rotating the double-rotation-direction screw 602, two moving blocks 604 which are in threaded connection with each other move in opposite directions, clamping plates 606 on two sides are outwards spread under the connecting action of the connecting rod 608, clamping of the cavity type casting part is realized from inside, in the processing process, in order to improve the processing efficiency, the operator can start the motor 403, and under the meshing connection of the gear ring 401 and the gear 404, the rotation of the supporting plate 3, the clamping mechanism 6 and the cavity type casting part in the clamping state can be realized, so that the operator can conveniently process the part in multiple positions on the premise of not moving the operator.

Finally: the foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims (5)

1. The utility model provides a die cavity class cast spare part machining anchor clamps, its characterized in that, including work platen (1), work platen (1) central point puts and rotates installs connecting axle (2), connecting axle (2) top fixed mounting has layer board (3), work platen (1) below is provided with drive assembly (4), evenly be provided with a plurality of fixture (6) on layer board (3), fixture (6) are including fixed mounting hollow sleeve (601) on work platen (1), vertically rotate in hollow sleeve (601) and install double-rotation to screw rod (602), double-rotation is to screw rod (602) top fixed mounting has hand wheel (603), equal threaded connection in both sides has movable block (604) about double-rotation to screw rod (602), an organic whole is provided with two connecting seat one (605) on movable block (604), the hollow sleeve (601) outside is provided with two splint (606), the inboard upper and lower both ends of splint (606) are all fixed mounting connecting seat two (607), connecting seat one (607) and two connecting seat two (605) are installed between.

2. A die cavity type cast component machining fixture as claimed in claim 1, wherein: two base plates (5) are fixedly installed on the connecting shaft (2), the two base plates (5) are respectively arranged above and below the working table plate (1), wherein the base plate (5) arranged on the upper layer is contacted with the top of the working table plate (1), and the base plate (5) arranged on the lower layer is contacted with the bottom of the working table plate (1).

3. A die cavity type cast component machining fixture as claimed in claim 1, wherein: the driving assembly (4) comprises a gear ring (401) fixedly installed on the connecting shaft (2), a rack (402) is fixedly installed at the bottom of the working table plate (1), a motor (403) is fixedly installed on the rack (402), and a gear (404) meshed and connected with the gear ring (401) is fixedly installed on an output shaft of the motor (403).

4. A die cavity type cast component machining fixture as claimed in claim 1, wherein: the included angle between the two connecting seats (605) arranged on the same moving block (604) is 180 degrees, and the included angle between the two clamping plates (606) arranged on the outer side of the hollow sleeve (601) is 180 degrees.

5. A die cavity type cast component machining fixture as claimed in claim 1, wherein: two through grooves (609) are formed in the hollow sleeve (601), the two through grooves (609) are symmetrically arranged, the width of each through groove (609) is equal to the width of the corresponding connecting seat (605), and the corresponding connecting seat (605) penetrates through the corresponding through groove (609).