Fixing clamp for shearing block machining

Abstract

The utility model discloses a stationary fixture for shearing block processing, which is applied to the technical field of shearing block processing and comprises a base, a conical table is bolted to the top of the base, a servo motor is bolted to one side of the bottom of the base, a rotating center shaft is rotatably connected to the inside of the conical table, a first turntable is welded to the bottom of the rotating center shaft, and a second turntable is welded to the bottom of the first turntable. The bottom of the first rotating disc is rotationally sleeved with a second rotating disc, and the end, close to the first rotating disc, of the second rotating disc and the output end of the servo motor are fixedly sleeved with synchronous wheels. When the inner surface and the top of the shearing block are positioned, the conical abutting blocks are synchronously driven to get close to each other, and the bottom and the surface of the shearing block are supported through trapezoidal inclined planes of the conical abutting blocks. Therefore, the top, the bottom, the inner surface and the outer surface of the shearing block are completely positioned, the stability is improved, and meanwhile the device can be suitable for fixing various shearing blocks of different specifications and models.

Description

Technical Field

[0001] This utility model belongs to the field of shear block processing technology, and specifically relates to a fixing fixture for shear block processing. Background Technology

[0002] Currently, Chinese utility model patent CN218658614U discloses a fixing fixture for processing shear blocks in a twin-screw extruder. While this patent can fully position the shear block and is applicable to fixing shear blocks of different specifications, it can only support and position the top and inner surface of the shear block, failing to simultaneously position the bottom and surface. Therefore, the fixing of the shear block is not comprehensive enough, resulting in poor stability and affecting the processing accuracy. Furthermore, this patent requires independent motor drive for positioning the inner surface and top of the shear block, which, while convenient for control, is costly and thus has low practicality. Utility Model Content

[0003] The purpose of this utility model is to provide a fixing fixture for processing shear blocks, which has the advantages of being able to completely position the shear blocks and ensure the effect of supporting and positioning the shear blocks, while reducing the manufacturing cost of the fixture.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a fixing fixture for processing shear blocks includes a base, a conical platform bolted to the top of the base, a servo motor bolted to one side of the bottom of the base, a rotating central shaft rotatably connected inside the conical platform, a first turntable welded to the bottom of the rotating central shaft, a second turntable rotatably sleeved on the bottom of the first turntable, a synchronous pulley fixedly sleeved at the end of the second turntable near the first turntable and at the output end of the servo motor, a synchronous belt being driven sleeved on the surfaces of the two synchronous pulleys, and a fastening bolt threaded through one side of the inside of the second turntable and engaging with the first turntable.

[0005] By employing the above technical solution, when positioning the inner surface and top of the shear block, the conical abutments are simultaneously moved closer together, and the trapezoidal inclined surfaces of the conical abutments support the bottom and surface of the shear block. This ensures complete positioning of the top, bottom, and inner and outer surfaces of the shear block, improving stability and making it suitable for fixing various specifications and models of shear blocks. Tightening the fastening bolts controls whether the second turntable rotates, thus supporting and positioning the shear block. This not only ensures effective support and positioning of the shear block but also requires only one motor for control, reducing the manufacturing cost of the fixing fixture.

[0006] The present invention is further configured such that: a first bevel gear is bolted to the top of the rotating central shaft; a first screw is rotatably connected inside the conical platform; a threaded sleeve is threaded onto the surface of the first screw; an inner abutment is bolted to the end of the threaded sleeve away from the first screw; and a second bevel gear meshing with the first bevel gear is bolted to the end of the first screw near the rotating central shaft.

[0007] By adopting the above technical solution, the rotation of the central shaft drives the first bevel gear to rotate and mesh with the second bevel gear, which in turn causes the first screw to rotate and engage with the threaded cylinder. This causes the threaded cylinder to push the inner abutment plate to slide outward, thereby positioning the inner surface of the shearing block.

[0008] The present invention is further configured such that: a third bevel gear is fixedly sleeved on the surface of the rotating central shaft; a second screw is provided on the top of the base and rotatably connected to the conical platform; a conical abutment is threaded onto the surface of the second screw; and a fourth bevel gear that meshes with the third bevel gear is bolted to one end of the second screw near the rotating central shaft.

[0009] By adopting the above technical solution, the rotating central shaft drives the third bevel gear to rotate, and after the third bevel gear meshes with the fourth bevel gear, it drives the second screw to rotate inside the conical platform, thereby bringing the conical blocks closer together to support and position the bottom and surface of the shear block.

[0010] The present invention is further configured such that: a limiting slider is welded to one side of the surface of the threaded cylinder and the bottom of the conical stop block, respectively, and is slidably connected to the inside of the conical platform and the base.

[0011] The above technical solution is used to limit the sliding of the threaded cylinder and the conical stop block, thereby improving sliding stability.

[0012] The present invention is further configured such that: a column is bolted to one side of the top of the base, a third screw is rotatably connected to the output end of the servo motor inside the column, a threaded sleeve is threaded onto the surface of the third screw, and a top abutment plate is bolted to the side of the threaded sleeve near the conical platform and slidably connected to the column.

[0013] Using the above technical solution, the third screw is driven to rotate by a servo motor and engage with the threaded sleeve, thereby causing the threaded sleeve to move the top abutment downwards and abut against and position the top of the shearing block.

[0014] The present invention is further configured such that mounting holes are provided on both sides of the bottom of the base.

[0015] The above technical solution facilitates the bolting and installation of the fixture by passing bolts through the mounting holes.

[0016] The present invention is further configured such that a gasket is adhered to the side of the inner abutment plate away from the threaded cylinder.

[0017] By adopting the above technical solution, the surface friction is increased, thereby improving the stability of the contact positioning.

[0018] The present invention is further configured such that a limiting piece is welded to the end of the second screw away from the central axis of rotation, which is used in conjunction with the conical stop block.

[0019] By adopting the above technical solution, the sliding of the conical stop block is limited to prevent it from sliding off the surface of the second screw.

[0020] In summary, this utility model has the following beneficial effects:

[0021] 1. By simultaneously moving the conical blocks closer together while positioning the inner surface and top of the shear block, the trapezoidal bevels of the conical blocks provide support to the bottom and surface of the shear block. This ensures complete positioning of the top, bottom, inner and outer surfaces of the shear block, improving stability and making it suitable for fixing various specifications and models of shear blocks.

[0022] 2. By tightening the fastening bolts, the second turntable is controlled to rotate the first turntable, thus supporting and positioning the shearing block. This not only ensures the effective support and positioning of the shearing block, but also reduces the manufacturing cost of the fixing fixture by requiring only one motor. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0025] Figure 3 This is a utility model Figure 2 Enlarged view of point A in the image;

[0026] Figure 4 This is a utility model Figure 2 Enlarged view of point B in the image.

[0027] Reference numerals: 1. Base; 2. Conical platform; 3. Servo motor; 4. Rotating central shaft; 5. First turntable; 6. Second turntable; 7. Synchronous pulley; 8. Synchronous belt; 9. Fastening bolt; 10. First bevel gear; 11. Second bevel gear; 12. First screw; 13. Threaded cylinder; 14. Inner abutment plate; 15. Limiting slider; 16. Third bevel gear; 17. Fourth bevel gear; 18. Second screw; 19. Conical abutment block; 20. Column; 21. Third screw; 22. Threaded sleeve; 23. Top abutment plate; 24. Mounting hole; 25. Gasket; 26. Limiting piece. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings.

[0029] Example 1:

[0030] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 A fixing fixture for processing shear blocks includes a base 1, a conical platform 2 bolted to the top of the base 1, a servo motor 3 bolted to one side of the bottom of the base 1, a rotating central shaft 4 rotatably connected inside the conical platform 2, a first turntable 5 welded to the bottom of the rotating central shaft 4, a second turntable 6 rotatably sleeved on the bottom of the first turntable 5, and synchronous pulleys 7 fixedly sleeved at the end of the second turntable 6 near the first turntable 5 and the output end of the servo motor 3, respectively. Synchronous belts 8 are driven onto the surfaces of the two synchronous pulleys 7, and a fastening bolt 9, threaded through one side of the interior of the second turntable 6 and engaging with the first turntable 5, is connected to it. Tightening the fastening bolt 9 controls whether the second turntable 6 drives the first turntable 5 to rotate, thus supporting and positioning the shear block. This not only ensures the effective support and positioning of the shear block but also requires only one motor for control, reducing the manufacturing cost of the fixing fixture.

[0031] refer to Figure 2 , Figure 3 A first bevel gear 10 is bolted to the top of the rotating central shaft 4. A first screw 12 is rotatably connected inside the conical platform 2. A threaded cylinder 13 is threaded onto the surface of the first screw 12. An inner abutment plate 14 is bolted to the end of the threaded cylinder 13 away from the first screw 12. A second bevel gear 11, which meshes with the first bevel gear 10, is bolted to the end of the first screw 12 near the rotating central shaft 4. The rotating central shaft 4 drives the first bevel gear 10 to rotate and mesh with the second bevel gear 11, causing the first screw 12 to rotate and engage with the threaded cylinder 13. This causes the threaded cylinder 13 to push the inner abutment plate 14 outward, positioning it against the inner surface of the shearing block.

[0032] refer to Figure 1 , Figure 2 A column 20 is bolted to one side of the top of the base 1. A third screw 21, bolted to the output end of a servo motor 3, is rotatably connected inside the column 20. A threaded sleeve 22 is threaded onto the surface of the third screw 21. A top abutment 23, slidably connected to the column 20, is bolted to the side of the threaded sleeve 22 closest to the conical platform 2. The servo motor 3 drives the third screw 21 to rotate and engage with the threaded sleeve 22, causing the threaded sleeve 22 to move the top abutment 23 downwards, thus positioning the top of the shearing block.

[0033] refer to Figure 1 , Figure 2Mounting holes 24 are provided on both sides of the bottom of the base 1. This allows for the bolting of the clamp by passing bolts through the mounting holes 24.

[0034] refer to Figure 1 , Figure 3 A gasket 25 is bonded to the side of the inner abutment plate 14 away from the threaded cylinder 13. This increases surface friction and improves the stability of the abutment positioning.

[0035] Brief description of the operation: First, tighten the fastening bolt 9 to abut against the bottom of the first turntable 5. Then, turn on the servo motor 3 to drive the second turntable 6 via the synchronous pulley 7 and synchronous belt 8, causing the second turntable 6 to rotate at the bottom of the first turntable 5. Next, the friction between the fastening bolt 9 and the first turntable 5 drives the rotating shaft 4 at the top of the first turntable 5 to rotate together, thereby causing the first bevel gear 10 and the second bevel gear 11 to mesh and drive each other. Then, the first screw 12 rotates and engages with the threaded cylinder 13, causing the threaded cylinder 13 to push the inner abutment plate 14 outward to abut against and position the inner surface of the shearing block. At the same time, the servo motor 3 drives the third screw 21 to rotate and engage with the threaded sleeve 22, causing the threaded sleeve 22 to move the top abutment plate 23 downward to abut against and position the top of the shearing block. Since the top abutment plate 23 is far away, after the inner abutment plate 14 abuts against the shearing block, the servo motor 3 can be stopped and the fastening bolt 9 can be loosened from the bottom of the first turntable 5. At this time, when the servo motor 3 is turned on, the second turntable 6 will rotate at the bottom of the first turntable 5 and cannot drive the first turntable 5 to rotate. Therefore, the top abutment plate 23 can move downwards alone to abut and position the top of the shearing block.

[0036] Example 2:

[0037] refer to Figure 1 , Figure 2 , Figure 4 A fixing fixture for processing shear blocks is disclosed. A third bevel gear 16 is fixedly sleeved on the surface of a rotating central shaft 4. A second screw 18, rotatably connected to a conical platform 2, is located on the top of a base 1. A conical abutment 19 is threaded onto the surface of the second screw 18. A fourth bevel gear 17, meshing with the third bevel gear 16, is bolted to one end of the second screw 18 near the rotating central shaft 4. By simultaneously moving the conical abutments 19 closer together when positioning the inner surface and top of the shear block, the trapezoidal inclined surfaces of the conical abutments 19 support the bottom and surface of the shear block. This provides complete positioning of the top, bottom, and inner and outer surfaces of the shear block, improving stability and making it suitable for fixing various specifications and models of shear blocks.

[0038] refer to Figure 2 , Figure 3One side of the threaded cylinder 13 and the bottom of the conical stop 19 are each welded with a limiting slider 15, which is slidably connected to the inside of the conical platform 2 and the base 1, respectively. This is used to limit the sliding of the threaded cylinder 13 and the conical stop 19, thereby improving sliding stability.

[0039] refer to Figure 1 , Figure 2 A limiting piece 26, which works in conjunction with the conical stop 19, is welded to the end of the second screw 18 furthest from the central axis of rotation 4. This limits the sliding of the conical stop 19 and prevents it from sliding off the surface of the second screw 18.

[0040] Brief description of the usage process: The first turntable 5 drives the central shaft 4 to rotate, which in turn drives the third bevel gear 16 to rotate. After the third bevel gear 16 meshes with the fourth bevel gear 17, it drives the second screw 18 to rotate inside the conical platform 2. Then, the second screw 18 engages with the conical abutment 19, causing the conical abutment 19 to slide on the top of the base 1. When the inner abutment plate 14 and the top abutment plate 23 abut against and position the top and inner surface of the shearing block, respectively, the trapezoidal inclined surface of the conical abutment 19 is used to bring the conical abutments 19 closer together to support and position the bottom and surface of the shearing block.

[0041] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A stationary fixture for shear block machining comprising a base (1), characterised in that: The top of the base (1) is bolted with a conical table (2), one side of the bottom of the base (1) is bolted with a servo motor (3), the inside of the conical table (2) is rotatably connected with a rotating middle shaft (4), the bottom of the rotating middle shaft (4) is welded with a first rotating disc (5), the bottom of the first rotating disc (5) is rotatably sleeved with a second rotating disc (6), one end of the second rotating disc (6) close to the first rotating disc (5) and the output end of the servo motor (3) are fixedly sleeved with a synchronous wheel (7), the surfaces of the two synchronous wheels (7) are drivingly sleeved with a synchronous belt (8), one side of the inside of the second rotating disc (6) is penetrated and threadedly connected with a fastening bolt (9) clamped with the first rotating disc (5).

2. A fixture for machining a shear block according to claim 1, characterized in that: The top of the rotating middle shaft (4) is bolted with a first bevel gear (10), the inside of the conical table (2) is rotatably connected with a first screw rod (12), the surface of the first screw rod (12) is threadedly sleeved with a threaded cylinder (13), one end of the threaded cylinder (13) away from the first screw rod (12) is bolted with an inside abutting plate (14), one end of the first screw rod (12) close to the rotating middle shaft (4) is bolted with a second bevel gear (11) engaged with the first bevel gear (10).

3. A fixture for machining a shear block according to claim 1, wherein: The surface of the rotating middle shaft (4) is fixedly sleeved with a third bevel gear (16), the top of the base (1) is provided with a second screw rod (18) rotatably connected with the conical table (2), the surface of the second screw rod (18) is threadedly sleeved with a conical abutting block (19), one end of the second screw rod (18) close to the rotating middle shaft (4) is bolted with a fourth bevel gear (17) engaged with the third bevel gear (16).

4. A fixture for machining a shear block according to claim 3, wherein: One side of the surface of the threaded cylinder (13) and the bottom of the conical abutting block (19) are welded with limiting sliding blocks (15) slidably connected with the inside of the conical table (2) and the base (1) respectively.

5. The fixture of claim 1 wherein: One side of the top of the base (1) is bolted with a stand (20), the inside of the stand (20) is rotatably connected with a third screw rod (21) bolted with the output end of the servo motor (3), the surface of the third screw rod (21) is threadedly sleeved with a threaded sleeve (22), one side of the surface of the threaded sleeve (22) close to the conical table (2) is bolted with a top abutting plate (23) slidably connected with the stand (20).

6. A fixture for machining a shear block according to claim 1, wherein: The bottom of the base (1) is provided with mounting holes (24) on both sides.

7. A fixture for machining a shear block according to claim 2, wherein: One side of the inside abutting plate (14) away from the threaded cylinder (13) is bonded with a gasket (25).

8. A fixture for machining a shear block according to claim 3, wherein: One end of the second screw rod (18) away from the rotating middle shaft (4) is welded with a limiting piece (26) used in cooperation with the conical abutting block (19).

Images