Clamping assembly for large casting machining

Abstract

The clamping assembly for large casting machining comprises a bottom plate, a top frame, a lifting carrier plate and a turntable bearing, metal hollow pipes are longitudinally installed on the left rear side and the right front side of the upper end of the bottom plate, sliding sleeves are sleeved on the annular side faces of the two metal hollow pipes, and bearing seats are installed on the left front side and the right rear side of the lower end of the top frame. Motor mounting seats are mounted on the left front side and the right rear side of the upper end of the bottom plate, forward and reverse rotation motors are mounted in the two motor mounting seats, and ball screws are longitudinally mounted at the upper ends of the two motor mounting seats. In order to solve the problems that in the prior art, a lifting and rotating type moving structure needs to move back and forth around the large casting and is troublesome, position adjustment of the large casting is achieved, workers can conveniently conduct machining operation on all positions of the large casting in situ, and the workload of the workers is effectively relieved.

Description

Technical Field

[0001] The utility model relates to a clamping assembly for large casting processing, belonging to the technical field of casting processing. Background Art

[0002] Castings are metal shaped objects obtained by various casting methods, that is, the smelted liquid metal is poured into a pre-prepared mold by pouring, injection, suction or other casting methods, and then cooled and polished to obtain objects with a certain shape, size and performance. During the processing of castings, they need to be fixed by clamping devices.

[0003] Patent No.: CN210677916U, mentions a quick clamping fixture for large castings, which drives the cylinder, push plate, clamping rod and clamping block to cooperate with each other, so that the staff can clamp the large castings to be processed. By setting a positioning mechanism on the workbench, the staff can fix the relative position between the large casting and the workbench, thereby reducing the tool setting process. However, during the processing of large castings, milling, drilling and other processing are usually required on different surfaces and positions. The device can only fix it. When the staff processes it, it needs to move back and forth around the large casting, which is more troublesome. Now there is an urgent need for a clamping assembly for large casting processing to solve the above-mentioned problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a clamping assembly for processing large castings to solve the problems raised in the above-mentioned background technology. The utility model has a reasonable structure and good practicality. A lifting and rotating mobile structure is designed to achieve position adjustment of large castings, which can facilitate workers to perform processing operations on various parts of large castings in situ and effectively reduce their workload.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a clamping assembly for large casting processing, including a bottom plate, a top frame, a lifting carrier plate and a turntable bearing, a metal hollow tube is longitudinally installed on the left rear side of the upper end and the right front side of the upper end of the bottom plate, and the two annular side surfaces of the metal hollow tube are sleeved with sliding sleeves, a bearing seat is installed on the left front side of the lower end and the right rear side of the lower end of the top frame, a motor mounting seat is installed on the left front side of the upper end and the right rear side of the upper end of the bottom plate, a forward and reverse motor is installed inside the two motor mounting seats, and a roller is longitudinally installed on the upper ends of the two motor mounting seats Ball screw, the two annular side surfaces of the ball screws are both covered with screw nut tubes, the lifting carrier is horizontally fixed between the two screw nut tubes and the two sliding sleeves, an internal fixing plate is installed at the lower end of the lifting carrier, and a reduction motor is longitudinally installed at the upper end of the internal fixing plate, the outer ring of the turntable bearing is horizontally installed on the upper end of the lifting carrier through a plurality of bolts, a bearing seat is horizontally fixed inside the inner ring of the turntable bearing, a plurality of welding plates are welded at equal angles on the outer ring of the turntable bearing, small telescopic rods are longitudinally installed inside the plurality of welding plates, and clamping plates are installed at the movable ends of the plurality of small telescopic rods.

[0006] Furthermore, the upper ends of the two ball screws are respectively installed in the inner rings of the two bearing seats, and the lower ends of the two ball screws are respectively connected to the two forward and reverse motors.

[0007] Furthermore, the upper ends of the two metal hollow tubes are fixed to the top frame.

[0008] Furthermore, the shaft end of the reduction motor is transmission-connected to the bearing seat.

[0009] Furthermore, a fixing block is fixed to the upper left end of the outer ring of the turntable bearing, a latch is longitudinally inserted at the other end of the fixing block, and a plurality of positioning holes are opened at equal angles on the upper edge of the bearing seat.

[0010] Furthermore, the latch is movably inserted into one of the positioning holes.

[0011] The beneficial effects of the utility model: the utility model is a clamping assembly for processing large castings. Because the utility model adds a metal hollow tube, a sliding sleeve, a ball screw, a screw nut tube, a forward and reverse motor, a lifting carrier plate, an internal fixed plate, a turntable bearing, a reduction motor, a bearing seat, a welding sheet, a small telescopic rod and a clamping plate, our design improvement and actual use have shown that the device has good practicality. A lifting and rotating mobile structure is designed to realize the position adjustment of large castings, which can facilitate the staff to perform processing operations on various parts of the large castings on the spot, effectively reducing their workload. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0013] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a clamping assembly for large casting processing according to the utility model;

[0014] Figure 2 This is a schematic diagram of the connection of a bearing seat of a clamping assembly for large casting processing according to the utility model;

[0015] Figure 3 It is an enlarged schematic diagram of a latch of a clamping assembly for machining large castings of the utility model;

[0016] In the figure: 1-bottom plate, 2-metal hollow tube, 3-sliding sleeve, 4-top frame, 5-bearing seat, 6-ball screw, 7-screw nut tube, 8-motor mounting seat, 9-forward and reverse motor, 10-lifting carrier plate, 11-internal fixing plate, 12-turntable bearing, 13-reduction motor, 14-bearing seat, 15-positioning hole, 16-fixing block, 17-pin, 18-welding sheet, 19-small telescopic rod, 20-clamping plate. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] See also Figure 1-Figure 3The utility model provides a technical solution: a clamping assembly for large casting processing, including a bottom plate 1, a top frame 4, a lifting carrier plate 10 and a turntable bearing 12, a metal hollow tube 2 is longitudinally installed on the left rear side and the right front side of the upper end of the bottom plate 1, and the two metal hollow tubes 2 are sleeved with a sliding sleeve 3 on the annular side, a bearing seat 5 is installed on the left front side and the right rear side of the lower end of the top frame 4, a motor mounting seat 8 is installed on the left front side and the right rear side of the upper end of the bottom plate 1, and a forward and reverse motor 9 is installed inside the two motor mounting seats 8, a ball screw 6 is longitudinally installed on the upper end of the two motor mounting seats 8, and the two ball screws 6 are sleeved with a screw nut barrel 7 on the annular side, and the lifting carrier plate 10 is horizontally fixed on the two Between the screw nut tube 7 and the two sliding sleeves 3, an internal fixing plate 11 is installed at the lower end of the lifting carrier plate 10, and a reduction motor 13 is longitudinally installed at the upper end of the internal fixing plate 11. The outer ring of the turntable bearing 12 is horizontally installed on the upper end of the lifting carrier plate 10 through a plurality of bolts, and a bearing seat 14 is horizontally fixed inside the inner ring of the turntable bearing 12. A plurality of welding plates 18 are welded at equal angles on the outer ring of the turntable bearing 12, and small telescopic rods 19 are longitudinally installed inside the plurality of welding plates 18. A clamping plate 20 is installed at the movable end of the plurality of small telescopic rods 19. This design solves the problem that the original device can only fix it, and when the staff processes it, it needs to move back and forth around the large casting, which is more troublesome.

[0019] As the first embodiment of the utility model: the upper ends of the two ball screws 6 are respectively installed in the inner rings of the two bearing seats 5, and the lower ends of the two ball screws 6 are respectively connected to the two forward and reverse motors 9 for transmission. The two added forward and reverse motors 9 can drive the two ball screws 6 to rotate in situ, and the upper ends of the two metal hollow tubes 2 are fixed to the top frame 4. The two added metal hollow tubes 2 and the top frame 4 facilitate the stable installation of the lifting carrier plate 10.

[0020] The shaft end of the reduction motor 13 is in transmission connection with the bearing seat 14, and the added reduction motor 13 can drive the bearing seat 14 to rotate at a low speed. A fixing block 16 is fixed to the upper left end of the outer ring of the turntable bearing 12, and a latch 17 is longitudinally inserted at the other end of the fixing block 16. A plurality of positioning holes 15 are provided at equal angles on the upper edge of the bearing seat 14, and the latch 17 is movably inserted into one of the positioning holes 15. By movably inserting the latch 17 into one of the positioning holes 15, the bearing seat 14 can be limited, and the inner ring of the turntable bearing 12 can be prevented from rotating by itself.

[0021] As a second embodiment of the utility model: when a large casting needs to be clamped, it is placed on the upper end of the bearing seat 14, and then a plurality of small telescopic rods 19 are started, and the movable ends of the plurality of small telescopic rods 19 will drive the plurality of clamping plates 20 to move downward until the plurality of clamping plates 20 clamp and tighten the large casting (at this time, the latch 17 is movably inserted in one of the positioning holes 15), and then the processing personnel processes the large casting; at the same time, two forward and reverse motors 9 are started in the same direction, and the two forward and reverse motors 9 will drive the two ball screws 6 to rotate in the same direction, and the two screw nut barrels 7 will be mobilized to move upward through the screw principle, and the lifting carrier 10 will be driven upward (at this time, the two sliding sleeves 3 will also be in the two metal hollow tubes 2 annular side moves up), thereby changing the height of the large casting; pull the pin 17 out of one of the positioning holes 15, then control the multiple small telescopic rods 19 to retract slightly, so that the multiple clamping plates 20 return to the initial position, and then start the reduction motor 13, the reduction motor 13 will drive the bearing seat 14 and the inner ring of the turntable bearing 12 to rotate, thereby causing the large casting to be driven to rotate, and then start the multiple small telescopic rods 19, the active ends of the multiple small telescopic rods 19 drive the multiple clamping plates 20 to move downward until the multiple clamping plates 20 re-clamp the large casting, and then insert the pin 17 into one of the positioning holes 15 again, at this time the processing personnel can process the remaining positions of the large casting at the original location.

[0022] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0023] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A clamping assembly for large casting processing, comprising a bottom plate (1), a top frame (4), a lifting plate (10) and a turntable bearing (12), characterized in that: A metal hollow tube (2) is longitudinally mounted on the left rear side and the right front side of the upper end of the bottom plate (1), and a sliding sleeve (3) is sleeved on the annular side surfaces of the two metal hollow tubes (2); a bearing seat (5) is mounted on the left front side and the right rear side of the lower end of the top frame (4); A motor mounting seat (8) is installed on the left front side and the right rear side of the upper end of the base plate (1), a forward and reverse motor (9) is installed inside the two motor mounting seats (8), a ball screw (6) is longitudinally installed on the upper ends of the two motor mounting seats (8), and the annular side surfaces of the two ball screws (6) are sleeved with a screw nut tube (7); The lifting carrier (10) is horizontally fixed between two screw nut tubes (7) and two sliding sleeves (3); an internal fixing plate (11) is installed at the lower end of the lifting carrier (10); a reduction motor (13) is longitudinally installed at the upper end of the internal fixing plate (11); the outer ring of the turntable bearing (12) is horizontally installed on the upper end of the lifting carrier (10) by a plurality of bolts; a bearing seat (14) is horizontally fixed inside the inner ring of the turntable bearing (12); a plurality of welding plates (18) are welded at equal angles on the outer ring of the turntable bearing (12); small telescopic rods (19) are longitudinally installed inside the plurality of welding plates (18); and clamping plates (20) are installed at the movable ends of the plurality of small telescopic rods (19).

2. A clamping assembly for large casting processing according to claim 1, characterized in that: The upper ends of the two ball screws (6) are respectively mounted in the inner rings of the two bearing seats (5), and the lower ends of the two ball screws (6) are respectively connected to the two forward and reverse motors (9) for transmission.

3. The clamping assembly for large casting processing according to claim 1, characterized in that: The upper ends of the two metal hollow tubes (2) are fixed to the top frame (4).

4. The clamping assembly for large casting processing according to claim 1, characterized in that: The shaft end of the reduction motor (13) is transmission-connected to the bearing seat (14).

5. The clamping assembly for large casting processing according to claim 1, characterized in that: A fixing block (16) is fixed to the upper left end of the outer ring of the turntable bearing (12), a latch (17) is longitudinally inserted at the other end of the fixing block (16), and a plurality of positioning holes (15) are formed at equal angles on the upper edge of the bearing seat (14).

6. A clamping assembly for large casting processing according to claim 5, characterized in that: The latch pin (17) is movably inserted into one of the positioning holes (15).

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