A machining clamp facilitating chip removal

Abstract

The application belongs to the technical field of mechanical clamps, and discloses a clamp convenient for chip removal for machining, which comprises a top bin and a fixed bin, and the fixed bin is fixedly installed on the top surface of the top bin. The blow head rotatably arranged at the center of the top surface of the top bin blows off and cleans the machining chips, effectively reducing the residual machining chips. Meanwhile, the overall structure is simple, the clamp can be integrally moved and installed, the integrity is high, the clamp is more flexible to use, no structure needs to be added around the workpiece, the machining shielding problem is effectively avoided, the convenience and the working efficiency are improved, meanwhile, in the process of clamping and moving, the inserting plates arranged at the two ends of the top surface of the sliding groove are inserted into the inserting holes arranged on the surface of the clamp block and slide against the inserting holes, so that the through opening of the sliding groove is avoided, effective chip shielding is formed, the machining chips are prevented from entering the top bin along the sliding groove, and the chip removal is further facilitated.

Description

Technical Field

[0001] This application relates to the field of mechanical clamping technology, and more specifically, to a machining clamping fixture that facilitates chip removal. Background Technology

[0002] Mechanical parts, also known as mechanical components, are the basic elements that make up machinery. They are the individual, inseparable components that make up machinery and machines. Mechanical parts are both a discipline that studies and designs the basic mechanical components in various equipment and a general term for parts and components. Mechanical fixtures are used in the process of processing parts, and most existing fixtures are clamp-type.

[0003] Metal shavings are generated during machining. Some of these shavings fall into the grooves of the clamping seat and are scattered on the fixture and fixture table. These shavings may contain sharp edges or corners, making manual cleaning difficult. The accumulation of shavings may scratch the machined surface of the workpiece, affecting the machining quality and the appearance of the product. Currently, the main method for cleaning shavings from the fixture surface is high-pressure gas purging. In practice, a purging system needs to be set up around the fixture to blow away the machining shavings from the fixture surface using high-speed airflow. However, the additional purging system around the fixture inevitably obstructs the machining head or other machining equipment, affecting the path design and increasing the complexity of machining. At the same time, there is no specific connection between the purging system and the fixture. When moving the fixture, it needs to be disassembled and reinstalled separately, resulting in weak overall integration and inflexible and inconvenient use. Further improvements can be made.

[0004] To address the aforementioned problems, this application provides a machining fixture that facilitates chip removal. Utility Model Content

[0005] The machining fixture for easy chip removal provided in this application adopts the following technical solution:

[0006] A machining fixture for easy chip removal includes a top chamber and a fixed chamber. The top chamber is fixedly installed on the top surface of the fixed chamber, and a support platform is fixedly installed at the center of the top surface of the top chamber via a column. The support platform is used to elevate the machine part, facilitating the installation and operation of the blower head. Simultaneously, the machine part is placed on the top surface of the support platform, and the projected size of the support platform is smaller than the projected size of the machine part. This allows the bottom surface of the machine part to completely cover the top surface of the support platform, effectively preventing machining chips from falling onto the top surface of the support platform. At the same time, it does not affect the clamping blocks' ability to hold and fix the sidewalls of the machine part. Clamping blocks are arranged on the outer side of the support platform, which is a common clamping structure. A blowpipe is rotatably connected through the central axis of the chamber, and a blowhead is connected to the top surface of the blowpipe via a diverter box. The diverter box is a sealed cylindrical hollow metal box used to divert airflow to the blowhead. An air supply pipe is rotatably connected to the bottom surface of the blowpipe via a rotary air connector, facilitating continuous air supply during the rotation of the blowpipe. A booster air pump is connected to the other end of the air supply pipe to deliver high-speed purge airflow. A drive motor is fixedly installed inside the fixed chamber, and a drive gear is installed at the output end of the drive motor. A driven gear is fixedly sleeved on the surface of the blowpipe, and the driven gear meshes with the drive gear, which is a common drive form.

[0007] With the above technical solution, when installing mechanical parts, the parts are placed on the top surface of the support platform, with the edges extending beyond the platform. Clamping blocks hold the surface of the mechanical parts, allowing for machining. During machining, the drive motor rotates the drive gear, which in turn rotates the driven gear and the blowpipe, causing the blower head to rotate. The blower head's air outlet direction is directly facing the top surface of the top chamber. Simultaneously, the booster air pump starts, generating a high-speed airflow. This high-speed airflow enters the blowpipe along the air supply pipe, is divided by the distribution box, and then enters the blower head to blow away and clean the machining debris that falls onto the top surface of the top chamber. The rotating blower head expands the cleaning range and improves cleaning efficiency. Furthermore, the overall structure is simple, allowing for complete movement and installation, strong integrity, and greater flexibility in use. Additionally, there is no need to add structures around the workpiece, effectively avoiding machining obstruction and improving ease of use and work efficiency.

[0008] Furthermore, the blower head is installed below the support platform and is located inside the support leg. There are four sets of support legs, and the diameter of the support legs is no more than 1cm, so as to avoid excessive obstruction of the blowing airflow and further improve the blowing efficiency. In addition, multiple sets of blowers are arranged at equal angles along the central axis of the diversion box.

[0009] Through the above technical solution, multiple sets of blowers further expand the blowing range and further improve the blowing and cleaning efficiency.

[0010] Furthermore, a hydraulic cylinder is fixedly installed on the outer wall of the top compartment, and the other end of the piston rod of the hydraulic cylinder is fixedly connected to the clamping block through a connecting groove. The connecting groove is a groove-shaped structure that is inserted into the outside of the clamping block and fixedly connected to the clamping block by fixing bolts. A sliding groove is opened on the top surface of the top compartment, and the clamping block passes through the sliding groove and slides against the sliding groove. The width of the sliding groove is equal to the thickness of the clamping block, and an insert plate is integrally opened on the top surface of both ends of the sliding groove. An insertion port is opened on the surface of the clamping block, and the insert plate is inserted into the insertion port and slides against the insertion port. The height of the insertion port is equal to the thickness of the insert plate.

[0011] Through the above technical solution, the hydraulic cylinder extends and retracts under the drive of the pump station, driving the clamping block to move inward and outward, thereby achieving the clamping and fixing of mechanical parts. During the clamping and moving process, the insert plates located at both ends of the top surface of the chute are inserted into the slots opened on the surface of the clamping block and slide against the slots, thereby preventing the chute from having a through opening, forming an effective chip shield, and thus preventing the processing chips from entering the top chamber along the chute, further facilitating chip removal.

[0012] Furthermore, the clamping blocks are distributed in four groups at equal angles along the central axis of the top compartment, and the height of the top surface of the clamping blocks is greater than the height of the top surface of the support platform. Since the projected size of the mechanical parts is larger than the projected size of the support platform, the clamping blocks can stably clamp the side wall of the mechanical parts, and the support platform will not interfere with the clamping operation of the clamping blocks.

[0013] The above technical solution improves the stability and comprehensiveness of clamping by using four sets of clamping blocks distributed at equal angles.

[0014] Furthermore, the blowpipe passes through the top surface of the top chamber and the top surface of the fixed chamber and is rotatably connected to the top surface of the top chamber and the top surface of the fixed chamber through a sealed bearing.

[0015] The above technical solution improves the stability of the blowpipe rotation and also prevents processing debris from entering the top chamber.

[0016] Furthermore, the booster air pump is installed in a fixed chamber, and an air inlet is provided on the side wall of the fixed chamber corresponding to the position of the booster air pump.

[0017] The above technical solution involves multiple sets of densely spaced air intakes, which facilitates air entering the fixed chamber and ensures the normal operation of the booster air pump.

[0018] Furthermore, a fixing plate is welded to the bottom surface of the fixed compartment, and bolt holes are provided on the surface of the fixing plate.

[0019] The above technical solution allows the bolt holes on the surface of the fixed plate to easily fix the device in the processing position, facilitating installation and disassembly.

[0020] In summary, this application includes the following beneficial technical effects:

[0021] The rotating air blower located at the center of the top surface of the top chamber blows away and cleans up machining debris, effectively reducing the residue of machining debris. At the same time, the overall structure is simple, can be moved and installed as a whole, has strong integrity, and is more flexible in use. In addition, there is no need to add structures around the workpiece, which effectively avoids the problem of machining obstruction and improves the convenience of use and work efficiency. During the clamping and moving process, the insert plates located at both ends of the top surface of the chute insert into the slots opened on the surface of the clamping block and slide against the slots, thereby preventing the chute from having a through opening and forming an effective debris shield, thus preventing machining debris from entering the top chamber along the chute and further facilitating chip removal. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this application;

[0023] Figure 2 This is the front view of this application;

[0024] Figure 3 This is a top view of this application;

[0025] Figure 4 This is a schematic diagram of the installation of the clamping block in this application.

[0026] Explanation of the labels in the diagram:

[0027] 1. Top compartment; 2. Fixed compartment; 3. Support platform; 4. Support leg; 5. Clamping block; 6. Slide groove; 7. Socket; 8. Insert plate; 9. Hydraulic cylinder; 10. Connecting groove; 11. Blowpipe; 12. Diverter box; 13. Blow head; 14. Air rotary connector; 15. Air supply pipe; 16. Booster air pump; 17. Drive motor; 18. Drive gear; 19. Driven gear; 20. Fixed plate. Detailed Implementation

[0028] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0029] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] Example:

[0032] This application discloses a machining fixture that facilitates chip removal. Please refer to [link / reference]. Figure 1 and Figure 2 It includes a top chamber 1 and a fixed chamber 2. The top chamber 1 is a circular hollow metal disc, and the fixed chamber 2 is a cylindrical metal box. The top chamber 1 is fixedly installed on the top surface of the fixed chamber 2, forming an integrated structure. A support platform 3 is fixedly installed at the center of the top surface of the top chamber 1 via a metal column. The support platform 3 is a circular or square metal platform used to elevate the mechanical parts, so that the bottom of the parts is kept at a distance from the top surface of the top chamber 1. This facilitates the installation and operation of the blower head 13 and prevents the bottom surface of the parts from directly contacting the top chamber 1, which would cause debris to accumulate.

[0033] When the mechanical parts are placed on the top surface of the support platform 3, the projected size of the support platform 3 is smaller than the projected size of the mechanical parts. This ensures that the bottom surface of the mechanical parts can completely cover the top surface of the support platform 3, effectively preventing debris generated during processing from falling onto the top surface of the support platform 3 and reducing cleaning dead corners. At the same time, this size design does not affect the clamping and fixing of the clamping blocks 5 to the side walls of the mechanical parts. Clamping blocks 5 are arranged along the circumference of the top compartment 1 on the outer side of the support platform 3. The clamping blocks 5 are arc-shaped or rectangular metal blocks used to clamp the parts, which is a common clamping structure.

[0034] A blowpipe 11, a metal cylindrical tube, is rotatably connected to the central axis of the top chamber 1 and the fixed chamber 2 via a bearing. A flow divider box 12, a sealed cylindrical hollow metal box with internal flow channels, is connected to the top surface of the blowpipe 11 via a flange. The flow divider box 12 evenly distributes the airflow delivered by the blowpipe 11 to multiple blow nozzles 13. The blow nozzles 13 are metal nozzles, evenly installed on the outside of the flow divider box 12. An air supply pipe 15 is rotatably connected to the bottom surface of the blowpipe 11 via a pneumatic rotary connector 14. The pneumatic rotary connector 14 ensures continuous airflow delivery when the blowpipe 11 rotates, preventing the air supply pipe 15 from becoming entangled. A booster air pump 16 is connected to the other end of the air supply pipe 15 via a flange, used to generate and deliver high-speed purging airflow.

[0035] Inside the fixed chamber 2, a drive motor 17 is fixedly installed by a bracket. The drive motor 17 is a geared motor, and the output end is connected to a drive gear 18 by a key. The surface of the blowpipe 11 is located inside the fixed chamber 2 and is fixedly sleeved with a driven gear 19 by a key. The driven gear 19 and the drive gear 18 mesh with each other to form a gear transmission mechanism, which is a common rotary drive form.

[0036] When installing mechanical parts, place the parts stably on the top surface of the support 3, so that the edges of the parts extend beyond the support 3; start the hydraulic cylinder 9 to move the clamping block 5 towards the part until the clamping block 5 is tightly attached to the side wall of the part, completing the clamping and fixing, and then the machining operation can be performed. During the machining process, the drive motor 17 and the booster air pump 16 are started simultaneously: the drive motor 17 drives the drive gear 18 to rotate, which meshes with the driven gear 19 and the blowpipe 11 to rotate synchronously, and the blowpipe 11 drives the flow divider box 12 and the blown head 13 to rotate around the axis of the part; the high-speed airflow generated by the booster air pump 16 enters the blowpipe 11 along the air supply pipe 15 and the air rotary connector 14, and after being divided by the flow divider box 12, it is sprayed out from each blown head 13. The airflow is directed towards the top surface of the top chamber 1, blowing the machining debris to the edge of the top chamber 1 and causing it to fall, realizing real-time chip removal.

[0037] The rotating blower head 13 can cover the entire top surface area of ​​the top chamber 1, expanding the blowing range and greatly improving the blowing efficiency. The fixture has a simple and compact overall structure and can be moved and installed as a whole through the fixed plate 20. It has strong integrity and is flexible in use. At the same time, the blowing structure is located below the part, eliminating the need to add complex parts around the workpiece, effectively avoiding obstruction of the processing tools and improving the convenience of use and work efficiency.

[0038] Please see Figure 1 and Figure 2The blower head 13 is installed below the support platform 3 and inside the support leg 4. The support leg 4 is a metal column connecting the support platform 3 and the top chamber 1. There are four sets of support legs 4. The diameter of the support leg 4 is no more than 1 cm. The slender structure can reduce the obstruction of the blowing airflow and ensure that the airflow blows the top surface of the top chamber 1 smoothly. Multiple sets of blower heads 13 are evenly arranged at equal angles along the central axis of the diversion box 12. Multiple sets of blower heads 13 spray air at the same time, which further expands the blowing coverage area, avoids the occurrence of blowing blind spots, and further improves the blowing and cleaning efficiency.

[0039] Please see Figure 1 and Figure 4 A hydraulic cylinder 9 is fixedly installed on the outer wall of the top compartment 1 via a flange. The hydraulic cylinder 9 is a double-acting hydraulic actuator, used in conjunction with a hydraulic pump station. The pump station is connected to the hydraulic cylinder 9 via a high-pressure oil pipe to provide power to the hydraulic cylinder 9. This is a common hydraulic drive method, which will not be described in detail here. The other end of the piston rod of the hydraulic cylinder 9 is fixedly connected to the clamping block 5 via a connecting groove 10. The connecting groove 10 has a U-shaped groove structure and is fitted onto the outside of the clamping block 5. The piston rod is tightly fixed to the clamping block 5 with fixing bolts, which facilitates disassembly and maintenance.

[0040] The top surface of the top compartment 1 has a radially formed groove 6, which is a long strip-shaped through hole. The clamping block 5 passes through the groove 6 and slides against the inner wall of the groove 6. The width of the groove 6 is equal to the thickness of the clamping block 5, ensuring that the clamping block 5 can slide smoothly without shaking. The top surfaces at both ends of the groove 6 are integrally formed with insert plates 8, which are rectangular metal plates. The surface of the clamping block 5 has a socket 7 corresponding to the position of the insert plate 8. The insert plate 8 is inserted into the socket 7 and slides against the inner wall of the socket 7. The height of the socket 7 is equal to the thickness of the insert plate 8, forming a sliding sealing structure.

[0041] Driven by the pump station, the hydraulic cylinder 9 extends and retracts, causing the clamping block 5 to move inward or outward along the slide groove 6, thereby clamping and fixing mechanical parts of different sizes. During the movement of the clamping block 5, the insert plate 8 is always inserted into the insertion port 7. The sliding cooperation between the two can seal the opening of the slide groove 6, preventing machining debris from entering the top chamber 1 along the slide groove 6, ensuring that the debris only stays on the top surface of the top chamber 1 and is blown out, further facilitating chip removal, and protecting the internal components of the top chamber 1 from chip contamination.

[0042] Please see Figure 1 and Figure 2 The clamping blocks 5 are distributed in four sets at equal angles along the central axis of the top chamber 1. The four sets of clamping blocks 5 clamp the parts from four directions, which can evenly distribute the clamping force, avoid the parts from deforming due to uneven force, and improve the stability and comprehensiveness of clamping. The top surface height of the clamping block 5 is greater than the top surface height of the support platform 3. Since the projected size of the mechanical parts is larger than the projected size of the support platform 3, the clamping block 5 can directly contact the side wall of the parts. The support platform 3 will not interfere with the clamping action of the clamping block 5, ensuring reliable clamping.

[0043] Please see Figure 1 and Figure 2 The blowpipe 11 passes through the center of the top surface of the top chamber 1 and the top surface of the fixed chamber 2, and is rotatably connected to the top chamber 1 and the fixed chamber 2 through a sealed bearing. The sealed bearing can reduce the frictional resistance when the blowpipe 11 rotates, improve the rotational stability, and seal the gap between the blowpipe 11 and the chamber body, preventing processing debris from entering the top chamber 1 or the fixed chamber 2 through the gap, protecting internal components such as the drive gear 18 and the driven gear 19, and extending the service life of the equipment.

[0044] Please see Figure 1 and Figure 2 The booster air pump 16 is fixedly installed inside the fixed chamber 2 by bolts, saving external installation space. The side wall of the fixed chamber 2 is densely provided with air inlets corresponding to the position of the booster air pump 16. The air inlets are circular through holes, which facilitate the smooth entry of external air into the fixed chamber 2, providing sufficient air intake for the booster air pump 16, ensuring that the booster air pump 16 can stably generate high-speed airflow and guarantee the purging effect.

[0045] Please see Figure 1 and Figure 3 The bottom surface of the fixed chamber 2 is fixedly mounted with a fixed plate 20 by welding. The fixed plate 20 is a circular metal plate with multiple bolt holes evenly distributed on its surface. When installing the fixture, the operator can fix the fixture to the machine tool worktable or other processing position by passing bolts through the bolt holes of the fixed plate 20. The installation is firm and the disassembly is convenient, which can adapt to the needs of different processing scenarios.

[0046] The implementation principle of this embodiment is as follows:

[0047] When installing the fixture, the fixture is fixed in the processing position through the bolt holes of the fixing plate 20; the mechanical parts are placed on the support platform 3, with the edge of the parts extending beyond the support platform 3; the hydraulic pump station is started, and the hydraulic cylinder 9 drives the clamping block 5 to move along the slide groove 6; the four sets of clamping blocks 5 clamp the parts from all sides; the insert plate 8 and the insertion port 7 cooperate to seal the slide groove 6 to prevent debris from entering the top chamber 1.

[0048] During processing, the drive motor 17 and the booster air pump 16 are started simultaneously: the drive motor 17 drives the blowpipe 11, the diverter box 12 and the blown head 13 to rotate through gear transmission; the high-speed airflow generated by the booster air pump 16 is ejected from the blown head 13 through the air supply pipe 15, the blowpipe 11 and the diverter box 12 to blow away the debris on the top surface of the top chamber 1. The rotating blown head 13 expands the blowing range, and the debris falls from the edge of the top chamber 1, realizing real-time chip removal.

[0049] The slender design of the four outriggers reduces airflow obstruction, the sealed bearings protect internal components, the overall structure has no machining obstruction, and the installation is flexible. It not only ensures stable clamping of parts, but also achieves efficient chip removal, improving the efficiency and cleanliness of machining.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A machining fixture for easy chip removal, comprising a top chamber (1) and a fixed chamber (2), characterized in that: The top of the fixed chamber (2) is fixedly installed with a top chamber (1), and a support platform (3) is fixedly installed at the center of the top of the top chamber (1) via a column. A clamping block (5) is arranged on the outside of the support platform (3). A blowpipe (11) is rotatably connected through the central axis of the top chamber (1) and the fixed chamber (2). A blowpipe (13) is connected through the top of the blowpipe (11) via a diverter box (12). An air supply pipe (15) is rotatably connected through the bottom of the blowpipe (11) via an air rotary connector (14). A booster air pump (16) is connected through the other end of the air supply pipe (15). A drive motor (17) is fixedly installed inside the fixed chamber (2), and a drive gear (18) is installed at the output end of the drive motor (17). A driven gear (19) is fixedly sleeved on the surface of the blowpipe (11), and the driven gear (19) meshes with the drive gear (18).

2. The machining fixture for easy chip removal according to claim 1, characterized in that: The blow head (13) is installed below the support platform (3) and is located inside the support leg (4). Multiple sets of blow heads (13) are arranged at equal angles along the central axis of the diversion box (12).

3. A machining fixture for easy chip removal according to claim 1, characterized in that: A hydraulic cylinder (9) is fixedly installed on the outer wall of the top compartment (1), and the other end of the piston rod of the hydraulic cylinder (9) is fixedly connected to the clamping block (5) through the connecting groove (10). A sliding groove (6) is opened on the top surface of the top compartment (1). The clamping block (5) passes through the sliding groove (6) and slides against the sliding groove (6). Insert plates (8) are integrally opened on the top surfaces of both ends of the sliding groove (6). An insertion port (7) is opened on the surface of the clamping block (5). The insertion plate (8) is inserted into the insertion port (7) and slides against the insertion port (7).

4. A machining fixture for easy chip removal according to claim 1, characterized in that: The clamping blocks (5) are distributed in four groups at equal angles along the central axis of the top compartment (1), and the height of the top surface of the clamping blocks (5) is greater than the height of the top surface of the support platform (3).

5. A machining fixture for easy chip removal according to claim 1, characterized in that: The blowpipe (11) passes through the top surface of the top chamber (1) and the top surface of the fixed chamber (2) and is rotatably connected to the top surface of the top chamber (1) and the top surface of the fixed chamber (2) through a sealed bearing.

6. A machining fixture for easy chip removal according to claim 1, characterized in that: The booster air pump (16) is installed in the fixed chamber (2), and the side wall of the fixed chamber (2) is provided with an air inlet corresponding to the position of the booster air pump (16).

7. A machining fixture for easy chip removal according to claim 1, characterized in that: The bottom surface of the fixed chamber (2) is welded with a fixed plate (20), and bolt holes are provided on the surface of the fixed plate (20).

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