Positioning clamp for turning inner hole of casting

Abstract

The utility model discloses a positioning fixture for casting inner hole turning, and relates to the technical field of casting fixtures, the positioning fixture comprises a positioning shell and a plurality of positioning plates, every two adjacent positioning shells are fixedly connected, a casting body is inserted into each arc-shaped clamping groove, a cover plate is arranged above the plurality of positioning shells together, and the cover plate is fixedly connected with the positioning shells. And each positioning plate is arranged below the cover plate, and each rectangular clamping groove is matched with the top of the corresponding casting body. According to the casting mold, the multiple positioning shells and the multiple positioning plates are arranged, the bottoms of the casting bodies are inserted into the arc-shaped clamping grooves in the corresponding positioning shells, the corresponding positioning plates can be pushed to move through the multiple moving mechanisms, and then the tops of the casting bodies can be smoothly clamped into the rectangular clamping grooves in the side walls of the corresponding positioning plates; therefore, the multiple casting bodies can be fixed, operation is easy, and the positioning efficiency of the casting bodies can be improved.

Description

Technical Field

[0001] This utility model relates to the field of casting fixture technology, specifically to a positioning fixture for turning the inner hole of a casting. Background Technology

[0002] Fixtures are process devices used to quickly secure workpieces during machining, ensuring that machine tools, cutting tools, and workpieces maintain the correct relative positions. Fixtures are indispensable components in machining, and fixture technology is developing towards high precision, high efficiency, modularity, combination, versatility, and economy.

[0003] In the process of developing this application, the applicant discovered that although existing positioning fixtures for turning the inner hole of castings can clamp and fix the casting body during use, they usually use multiple bolts to lock the fixture in order to fix the casting body, which makes the positioning operation more troublesome and makes it difficult to position multiple fixtures together, and also makes it difficult to improve the positioning efficiency of the casting. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that the operation of casting fixtures in the prior art is relatively troublesome and it is difficult to improve the positioning efficiency of castings, and to propose a positioning fixture for turning the inner hole of castings.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A positioning fixture for turning the inner hole of a casting includes a positioning shell and multiple positioning plates. Each pair of adjacent positioning shells is fixedly connected. Each positioning shell has an arc-shaped groove on its inner wall, and a casting body is inserted into each arc-shaped groove. A cover plate is commonly provided above the multiple positioning shells. Each positioning plate is located below the cover plate. Each positioning plate has a rectangular groove on its side wall, and each rectangular groove matches the top of the corresponding casting body. A flipping mechanism is provided on the top of one of the positioning shells, and the cover plate matches the flipping mechanism. Multiple moving mechanisms are provided on the side wall of the cover plate, and each positioning plate matches a corresponding moving mechanism.

[0007] Preferably, the flipping mechanism includes two fixed plates and a rotating rod. The two fixed plates are fixedly disposed on the top of the corresponding positioning shell. The two ends of the rotating rod are respectively fixedly connected to the corresponding fixed plates. The cover plate is rotatably sleeved on the rod wall of the rotating rod.

[0008] Preferably, each of the moving mechanisms includes a first screw and a turntable. The first screw is threaded onto the side wall of the cover plate. Each of the positioning plates has a groove on its side wall. One end of the first screw is inserted into the corresponding groove, and the other end of the first screw is fixedly connected to the turntable.

[0009] Preferably, a first mounting plate is fixedly provided on the side wall of the cover plate, and a second mounting plate is fixedly provided on the side wall of one of the positioning shells. A second screw is movably sleeved inside the first mounting plate, and one end of the second screw is threaded into the inside of the second mounting plate.

[0010] Preferably, the side wall of the cover plate is provided with multiple receiving grooves, and the inner wall of each receiving groove is fixedly provided with two telescopic rods, and the other end of each telescopic rod is fixedly connected to the corresponding positioning plate.

[0011] Preferably, each of the positioning shells is a stainless steel shell.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0013] This invention uses multiple positioning shells and multiple positioning plates to insert the bottom of the casting body into the arc-shaped slot inside the corresponding positioning shell. Multiple moving mechanisms can push the corresponding positioning plate to move, so that the top of the casting body can be smoothly engaged in the rectangular slot on the side wall of the corresponding positioning plate. This can fix multiple casting bodies, which is not only simple to operate, but also improves the positioning efficiency of the casting body.

[0014] This utility model, through the setting of a flipping mechanism, includes two fixed plates and a rotating rod, which rotates the cover plate to fit onto the rod wall. The cover plate is flipped so that it can rotate on the rod wall, thus allowing the cover plate to smoothly cover the top of multiple positioning shells.

[0015] This utility model, through the setting of multiple moving mechanisms, each of which includes a first screw and a turntable, rotates the turntable to drive the first screw to rotate, so that the first screw can be smoothly inserted into the interior of the corresponding groove, thereby enabling multiple positioning plates to move smoothly and thus positioning multiple casting bodies. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is the front view of the present invention;

[0018] Figure 2 For the present utility model Figure 1 A schematic diagram of the cross-sectional structure;

[0019] Figure 3 For the present utility model Figure 2 Enlarged view of part A.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Positioning shell; 2. Positioning plate; 3. Arc-shaped groove; 4. Casting body; 5. Cover plate; 6. Rectangular groove; 7. Fixing plate; 8. Rotating rod; 9. First screw; 10. Turntable; 11. First mounting plate; 12. Second mounting plate; 13. Second screw; 14. Receiving groove; 15. Telescopic rod. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0023] This utility model discloses a positioning fixture for turning the inner hole of a casting.

[0024] This utility model provides, for example Figure 1-3 The positioning fixture shown includes a positioning shell 1 and multiple positioning plates 2. Each pair of adjacent positioning shells 1 are fixedly connected. Each positioning shell 1 has an arc-shaped groove 3 on its inner wall, and a casting body 4 is inserted into the interior of each arc-shaped groove 3. A cover plate 5 is provided on the top of the multiple positioning shells 1. Each positioning plate 2 is located below the cover plate 5. Each positioning plate 2 has a rectangular groove 6 on its side wall, and each rectangular groove 6 matches the top of the corresponding casting body 4. A flipping mechanism is provided on the top of one of the positioning shells 1, and the cover plate 5 matches the flipping mechanism. Multiple moving mechanisms are provided on the side wall of the cover plate 5, and each positioning plate 2 matches the corresponding moving mechanism. By using the multiple positioning shells 1 and multiple positioning plates 2, multiple casting bodies 4 can be fixed, which not only simplifies the operation but also improves the positioning efficiency of the casting bodies 4.

[0025] To ensure that the cover plate 5 can smoothly cover the tops of the multiple positioning shells 1, such as Figure 1-3 As shown, the flipping mechanism includes two fixed plates 7 and a rotating rod 8. The two fixed plates 7 are fixedly set on the top of the corresponding positioning shell 1. The two ends of the rotating rod 8 are fixedly connected to the corresponding fixed plates 7 respectively. The cover plate 5 is rotatably sleeved on the rod wall of the rotating rod 8. By using the flipping mechanism, it can be ensured that the cover plate 5 can smoothly cover the top of multiple positioning shells 1.

[0026] In order to ensure that multiple positioning plates 2 can move smoothly, and thus position multiple casting bodies 4, such as... Figure 1-3As shown, each moving mechanism includes a first screw 9 and a turntable 10. The first screw 9 is threaded onto the side wall of the cover plate 5. Each positioning plate 2 has a groove on its side wall. One end of the first screw 9 is inserted into the corresponding groove, and the other end of the first screw 9 is fixedly connected to the turntable 10. By using the moving mechanism, multiple positioning plates 2 can be moved smoothly, thereby positioning multiple casting bodies 4.

[0027] In order to secure the cover plate 5 and ensure that it is stably fixed above the multiple positioning shells 1, such as... Figure 1-3 As shown, a first mounting plate 11 is fixedly installed on the side wall of the cover plate 5, and a second mounting plate 12 is fixedly installed on the side wall of one of the positioning shells 1. A second screw 13 is movably sleeved inside the first mounting plate 11. One end of the second screw 13 is threaded into the inside of the second mounting plate 12. By using the second screw 13, the cover plate 5 can be fixed, ensuring that the cover plate 5 can be fixedly and stably installed above the multiple positioning shells 1.

[0028] In order to connect multiple positioning plates 2 and ensure that the multiple positioning plates 2 can move stably, such as Figure 1-3 As shown, the side wall of the cover plate 5 is provided with multiple receiving slots 14. Each receiving slot 14 has two telescopic rods 15 fixedly installed on its inner wall. The other end of each telescopic rod 15 is fixedly connected to the corresponding positioning plate 2. By using the telescopic rods 15, multiple positioning plates 2 can be connected, and multiple positioning plates 2 can be moved stably.

[0029] Finally, in order to reduce the weight of the positioning shell 1 and decrease the production cost of the positioning fixture, such as... Figure 1-3 As shown, each positioning shell 1 is made of stainless steel, which reduces the weight of the positioning shell 1 and the production cost of the positioning fixture.

[0030] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A positioning fixture for turning the inner hole of a casting, comprising a positioning shell (1) and a plurality of positioning plates (2), characterized in that, Each pair of adjacent positioning shells (1) are fixedly connected. Each positioning shell (1) has an arc-shaped slot (3) on its inner wall. Each arc-shaped slot (3) has a casting body (4) inserted inside. A cover plate (5) is provided on the top of multiple positioning shells (1). Each positioning plate (2) is located below the cover plate (5). Each positioning plate (2) has a rectangular slot (6) on its side wall. Each rectangular slot (6) matches the top of the corresponding casting body (4). One of the positioning shells (1) has a flipping mechanism on its top. The cover plate (5) matches the flipping mechanism. The side wall of the cover plate (5) has multiple moving mechanisms. Each positioning plate (2) matches the corresponding moving mechanism.

2. The positioning fixture for turning the inner hole of a casting according to claim 1, characterized in that, The flipping mechanism includes two fixed plates (7) and a rotating rod (8). The two fixed plates (7) are fixedly installed on the top of the corresponding positioning shell (1). The two ends of the rotating rod (8) are fixedly connected to the corresponding fixed plates (7). The cover plate (5) is rotatably sleeved on the rod wall of the rotating rod (8).

3. A positioning fixture for turning the inner hole of a casting according to claim 1, characterized in that, Each of the moving mechanisms includes a first screw (9) and a turntable (10). The first screw (9) is threaded onto the side wall of the cover plate (5). Each of the positioning plates (2) has a groove on its side wall. One end of the first screw (9) is inserted into the corresponding groove, and the other end of the first screw (9) is fixedly connected to the turntable (10).

4. A positioning fixture for turning the inner hole of a casting according to claim 1, characterized in that, The cover plate (5) is fixedly provided with a first mounting plate (11) on its side wall, and one of the positioning shells (1) is fixedly provided with a second mounting plate (12) on its side wall. The first mounting plate (11) is movably sleeved with a second screw (13), and one end of the second screw (13) is threaded into the interior of the second mounting plate (12).

5. A positioning fixture for turning the inner hole of a casting according to claim 1, characterized in that, The cover plate (5) has multiple receiving slots (14) on its side wall. Each receiving slot (14) has two telescopic rods (15) fixedly installed on its inner wall. The other end of each telescopic rod (15) is fixedly connected to the corresponding positioning plate (2).

6. A positioning fixture for turning the inner hole of a casting according to claim 1, characterized in that, Each of the positioning shells (1) is a stainless steel shell.

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