Cutting clamp for casting complex cast tree

Abstract

The utility model discloses a cutting clamp for casting a complex cast tree, which comprises a shell, and a sliding cavity is arranged in the shell; the clamping mechanism comprises a two-way threaded rod rotationally connected between the inner walls of the right two sides of the sliding cavity, the two threaded ends of the two-way threaded rod are both in threaded connection with sliding blocks, a sliding groove is formed in the inner bottom of the sliding cavity, the lower end of each sliding block is fixedly connected with a connecting strip, the lower end of each connecting strip penetrates through the sliding groove, and the two ends of the two-way threaded rod are fixedly connected with the sliding grooves. And a rotating shaft is arranged on each connecting strip in a penetrating mode, each rotating shaft is rotationally connected with the corresponding connecting strip through a bearing, the opposite ends of the two rotating shafts are fixedly connected with rotating discs, and the opposite sides of the two rotating discs are each provided with four clamping pieces. When the cutting clamp is used, relative movement of the clamping parts is used in cooperation with the changeable clamping pieces, so that the overall adaptability is further improved, and the supporting stability is higher in cooperation with use of the supporting mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of tree casting clamps, in particular to a cutting clamp for casting complex trees. Background Art

[0002] In the investment casting production tree process, the tree is generally divided into three types: straight runner type (vertical group), cross runner type (horizontal group), and combined type (compound die head group tree). For vertical and horizontal tree, automatic / semi-automatic cutting machines can be used to separate the castings from the tree after casting. The automatic / semi-automatic cutting machines currently on the market require the use of a clamp.

[0003] The utility model patent, publication number CN220881463U, discloses a fixture for cutting complex investment casting trees. The fixture comprises a fixing device and a clamping device, the clamping device comprising a first clamping arm and a second clamping arm. The fixing device is provided with a transmission device for controlling the distance between the first clamping arm and the second clamping arm, and a drive device for driving the transmission device. By providing a clamping device for fixing the tree to be cut, the distance between the first clamping arm and the second clamping arm in the clamping device can be adjusted according to the size and type of the tree. This eliminates the need to manufacture specialized fixtures for complex and different tree types, thus saving manufacturing costs, improving the versatility and utilization of the fixture, and enhancing cutting efficiency.

[0004] However, although the above device can adjust the distance between the first clamping arm and the second clamping arm, it cannot change the clamping member of the clamping part, resulting in that it is still difficult to adapt to different casting trees in actual use, resulting in actual adaptability still needs to be improved. Utility Model Content

[0005] The purpose of the present utility model is to solve the shortcomings existing in the prior art and to propose a cutting clamp for casting complex cast trees. When in use, the cutting clamp utilizes the relative movement of the clamping part and cooperates with the changeable clamping parts to further improve the overall adaptability, and cooperates with the use of the support mechanism to make the support more stable.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] The axle up and down groove at two ends embeds respectively in two guide rails up and down of being made up of the groove on the attachment piece, and the tooth on the attachment piece is meshed with tooth on upper sprocket wheel, the lower sprocket. The lower sprocket. The lower sprocket. The two guide rails are meshed with tooth on upper sprocket.

[0008] Preferably, the thread directions of the two threaded ends of the bidirectional threaded rod are opposite.

[0009] Preferably, the two sliding blocks are both slidably connected to the inner wall of the sliding cavity.

[0010] Preferably, the two connecting strips are fixedly connected to the opposite sides with connecting blocks, the lower ends of the two connecting blocks are provided with cylindrical grooves, the two cylindrical grooves are provided with sliding columns that can slide up and down, the upper ends of the two sliding columns are elastically connected to the inner top of the corresponding cylindrical grooves through springs, and the right sides of the two sliding columns are fixedly connected with handles.

[0011] Preferably, each of the rotating shafts is provided with insertion holes at the top and bottom and at the front and back.

[0012] Preferably, the support mechanism includes L-shaped bars fixedly connected to the opposite sides of the two connecting bars, the vertical parts of the two L-shaped bars are penetrated by screws, each of the screws is threadedly connected to the corresponding L-shaped bar, and the opposite ends of the two screws are fixedly connected to a movable plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. Different clamping parts can be replaced by simple toggling and turning operations, which enhances the adaptability and flexibility of the clamping device and meets the needs of diverse workpiece clamping.

[0015] 2. During the clamping process, the design of the abutment plate can effectively share the reaction force generated during clamping, avoiding the reaction force directly acting on the rotating shaft and its internal bearings, reducing the risk of eccentric force on the bearings, thereby extending the service life of the equipment and improving the stability and safety of the clamping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a cutting fixture for casting complex cast trees proposed by the present invention;

[0017] Figure 2 for Figure 1 Schematic cross-sectional view of ;

[0018] Figure 3 for Figure 2 Enlarged view of point A.

[0019] In the figure: 1 housing, 2 connecting strip, 3 rotating shaft, 4 rotating disk, 5 clamping member, 6 screw, 7 moving disk, 8 sliding cavity, 9 bidirectional threaded rod, 10 slider, 11 slide groove, 12 mounting groove, 13 driving motor, 14 L-shaped strip, 15 connecting block, 16 columnar groove, 17 spring, 18 sliding column, 19 handle, 20 socket. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Reference Figure 1-Figure 3 , a cutting fixture for casting complex cast trees, comprising a shell 1, wherein a sliding cavity 8 is provided in the shell 1;

[0022] Among them, it also includes a clamping mechanism, which includes a bidirectional threaded rod 9 rotatably connected between the inner walls on the right sides of the sliding cavity 8, the two threaded ends of the bidirectional threaded rod 9 have opposite thread directions, and the two threaded ends of the bidirectional threaded rod 9 are threadedly connected to a slider 10, and a slide groove 11 is provided at the inner bottom of the sliding cavity 8. The two sliders 10 are slidably connected to the inner wall of the sliding cavity 8, and the lower end of each slider 10 is fixedly connected to a connecting bar 2, and the lower end of each connecting bar 2 passes through the slide groove 11, and each connecting bar 2 is penetrated by a rotating shaft 3, and each rotating shaft 3 is rotatably connected to the connecting bar 2 through a bearing, and the opposite ends of the two rotating shafts 3 are fixedly connected to a rotating disk 4, and four clamping members 5 are installed on the opposite sides of the two rotating disks 4, and the clamping members 5 on each rotating disk 4 are different (the figure is only a pictorial effect and does not represent the actual structure);

[0023] Among them, it also includes a driving mechanism, which is used to drive the bidirectional threaded rod 9 to rotate. The driving mechanism includes a mounting slot 12 opened on the right side of the housing 1. A driving motor 13 is installed in the mounting slot 12. The output shaft of the driving motor 13 extends into the sliding cavity 8 and is fixedly connected to the right end of the bidirectional threaded rod 9. The driving motor 13 here adopts a servo motor that can change the rotation direction;

[0024] Among them, the opposite sides of the two connecting strips 2 are fixedly connected with connecting blocks 15, the lower ends of the two connecting blocks 15 are provided with cylindrical grooves 16, and the two cylindrical grooves 16 are provided with sliding columns 18 that can slide up and down. The upper ends of the two sliding columns 18 are elastically connected to the inner top of the corresponding cylindrical grooves 16 through springs 17. The right sides of the two sliding columns 18 are fixedly connected with pull handles 19. Each rotating shaft 3 is penetrated by a socket 20 in the upper and lower directions and the front and back directions.

[0025] It also includes a support mechanism, which is used to improve the overall service life. The support mechanism includes L-shaped bars 14 fixedly connected to the opposite sides of the two connecting bars 2. The vertical parts of the two L-shaped bars 14 are penetrated by screws 6. Each screw 6 is threadedly connected to the corresponding L-shaped bar 14, and the opposite ends of the two screws 6 are fixedly connected to the movable plates 7.

[0026] In the present invention, the two clamping members 5 at the bottom are used for clamping each time. When the staff starts the driving motor 13, the bidirectional threaded rod 9 can be driven to rotate. The rotation of the bidirectional threaded rod 9 will drive the two sliders 10 to move relative to each other, thereby driving the corresponding two clamping members 5 to move relative to each other through the connecting bar 2, the rotating shaft 3 and the rotating disk 4 to achieve clamping limit. When a different clamp needs to be used, the sliding post 18 can be first moved up to leave the socket 20, and then the rotating disk 4 can be rotated to allow the required clamping member 5 to rotate to the bottom, and then the sliding post 18 can be released. Under the elastic action of the spring 17, the sliding post 18 is inserted into the corresponding socket 20 again to complete the limit, and the adjustment on the other side can be carried out in the same way.

[0027] In addition, it should be noted that when clamping, the screw 6 can also be twisted to rotate, so that the abutment plate 7 moves and contacts the corresponding rotating plate 4. At this time, the reaction force during clamping will be shared by the abutment plate 7, avoiding the reaction force directly acting on the rotating shaft 3 through the rotating plate 4, causing the internal bearing to be eccentrically stressed, affecting its service life.

[0028] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cutting fixture for casting complex casting trees, characterized in that, include: A housing (1), wherein a sliding cavity (8) is provided in the housing (1); A clamping mechanism, wherein the clamping mechanism includes a bidirectional threaded rod (9) rotatably connected between the inner walls on the right sides of the sliding cavity (8), the two threaded ends of the bidirectional threaded rod (9) are threadedly connected to a slider (10), the inner bottom of the sliding cavity (8) is provided with a slide groove (11), the lower end of each slider (10) is fixedly connected to a connecting bar (2), the lower end of each connecting bar (2) passes through the slide groove (11), each connecting bar (2) is provided with a rotating shaft (3), each rotating shaft (3) is rotatably connected to the connecting bar (2) through a bearing, the opposite ends of the two rotating shafts (3) are fixedly connected to a rotating disk (4), and four clamping members (5) are installed on the opposite sides of the two rotating disks (4); A driving mechanism, the driving mechanism is used to drive the bidirectional threaded rod (9) to rotate, the driving mechanism includes a mounting groove (12) provided on the right side of the housing (1), a driving motor (13) is installed in the mounting groove (12), an output shaft of the driving motor (13) extends into the sliding cavity (8) and is fixedly connected to the right end of the bidirectional threaded rod (9); The supporting mechanism is used to increase the overall service life.

2. A cutting fixture for casting complex casting trees according to claim 1, characterized in that: The two threaded ends of the bidirectional threaded rod (9) have opposite thread directions.

3. A cutting fixture for casting complex casting trees according to claim 1, characterized in that: The two sliders (10) are both slidably connected to the inner wall of the sliding cavity (8).

4. A cutting fixture for casting complex casting trees according to claim 1, characterized in that: The two connecting strips (2) are fixedly connected to the opposite sides with connecting blocks (15), the lower ends of the two connecting blocks (15) are provided with columnar grooves (16), and the two columnar grooves (16) are provided with sliding columns (18) that can slide up and down. The upper ends of the two sliding columns (18) are elastically connected to the inner top of the corresponding columnar groove (16) through springs (17), and the right sides of the two sliding columns (18) are fixedly connected with a pull handle (19).

5. A cutting fixture for casting complex casting trees according to claim 4, characterized in that: Each of the rotating shafts (3) is provided with a socket (20) extending vertically and frontally.

6. A cutting fixture for casting complex casting trees according to claim 1, characterized in that: The support mechanism comprises L-shaped bars (14) respectively fixedly connected to opposite sides of the two connecting bars (2), the vertical portions of the two L-shaped bars (14) are both provided with screw rods (6), each of the screw rods (6) is threadedly connected to the corresponding L-shaped bar (14), and the opposite ends of the two screw rods (6) are both fixedly connected to abutment plates (7).

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