A fixture tool for a milling machine

Abstract

The utility model relates to milling machine clamp technical field discloses a kind of milling machine clamps frock, including milling machine body, the side of milling machine body is provided with workpiece pneumatic clamp seat, both sides of the workpiece pneumatic clamp seat are fixedly connected with gas tank, the top of the gas tank is fixedly connected with hinge seat, the outer wall of the hinge seat is hinged with driving arm, the top of the driving arm is hinged with clamp head, one side surface of the gas tank is provided with pneumatic cylinder, the output end of the pneumatic cylinder is fixedly connected with telescopic link.The utility model has following advantages and effects: realize the automatic cleaning of positioning surface between each time clamping clearance, completely eliminate the clamping error caused by chip residue, significantly improve the size consistency and product qualification rate of batch processing, save the step of frequent use of external air gun manual cleaning by operator, shorten auxiliary time, improve machine tool effective utilization rate.

Description

Technical Field

[0001] This utility model relates to the field of milling machine fixture technology, and in particular to a fixture for milling machines. Background Technology

[0002] In the field of machining, milling machines are a widely used key piece of equipment. Their machining accuracy and efficiency largely depend on the performance of the fixtures and tooling. Pneumatic fixtures play an important role in modern milling due to their advantages such as fast clamping speed, labor-saving operation, and ease of automation.

[0003] Currently, the common countermeasures in the workshop mainly rely on operators using manual air guns (commonly known as "air guns") to clean the equipment before clamping.

[0004] This method has obvious drawbacks. It relies heavily on the operator's self-awareness and sense of responsibility, and is easily overlooked in fast-paced or fatigued operations. Manual operation increases non-processing auxiliary time and reduces overall production efficiency. The independent air gun equipment occupies extra space, and its pipeline is also prone to interference with the moving parts of the machine tool. Utility Model Content

[0005] The purpose of this invention is to provide a milling machine fixture that can accurately blow away chips from key contact areas, fundamentally eliminating chip interference and ensuring consistent machining accuracy.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a milling machine fixture, including a milling machine body, a workpiece pneumatic fixture seat is provided on one side of the milling machine body, air boxes are fixedly connected to both sides of the workpiece pneumatic fixture seat, a hinge seat is fixedly connected to the top of the air box, a drive arm is hinged to the outer wall of the hinge seat, a fixture head is hinged to the top of the drive arm, the drive arm is hinged to the middle of the fixture head, a cylinder is fixedly connected to one side of the air box, a telescopic rod is fixedly connected to the output end of the cylinder, the top of the telescopic rod is hinged to one end of the fixture head, an air pump is fixedly connected to the inner wall of the air box, an air supply pipe is fixedly connected to the output end of the air pump, a distributor pipe is fixedly connected to the top of the air supply pipe, and a nozzle is fixedly connected to the top of the distributor pipe.

[0007] Furthermore, an air inlet is provided at the bottom of the air box, and a protective net is fixedly connected to the inner wall of the air inlet.

[0008] Furthermore, an anti-slip pad is fixedly connected to the bottom of the clamp head, and the outer wall of the anti-slip pad is coated with a wear-resistant coating.

[0009] Furthermore, a bracket is fixedly connected to one side of the air box, and the inner wall of the bracket is fixedly connected to the cylinder.

[0010] Furthermore, a milling head is provided on the top of the milling machine body, and a vertical feed transmission device for the milling head is provided on the top of the milling head.

[0011] Furthermore, a deburring device is provided on one side of the milling machine body, and a hinge groove is provided at one end of the fixture head.

[0012] Furthermore, the number of nozzles is multiple, and the multiple nozzles are distributed at equal intervals.

[0013] Furthermore, an extension tube is fixedly connected to the top of the diverter tube, and an inclined nozzle is fixedly connected to the top of the extension tube.

[0014] Furthermore, the number of the inclined nozzles is multiple, and the inclined nozzles are the same size as the nozzles.

[0015] Furthermore, a tool magazine is provided on the top of the milling machine body, and a cable-carrying device is provided on one side of the bottom of the milling machine body.

[0016] By adopting the above technical solutions, the tool magazine and cable routing device can improve the overall functionality of the machine tool.

[0017] The beneficial effects of this utility model are: 1. In use, this utility model achieves automatic cleaning of the positioning surface during each clamping interval through the linkage of cylinder action and chip blowing function, completely eliminating clamping errors caused by chip residue, significantly improving the dimensional consistency and product qualification rate of batch processing, eliminating the need for operators to frequently use external air guns for manual cleaning, shortening auxiliary time, and improving the effective utilization rate of machine tools. It is particularly suitable for automated production lines, avoiding the possibility of operators bringing their hands close to the dangerous area of ​​the fixture due to manual cleaning, and also preventing the risk of chips flying into the eyes. Continuous automatic cleaning can prevent chips from accumulating near the sliding parts of precision fixtures such as hinges and cylinder rods, reducing the wear, jamming and failure rate of the fixture itself, extending the service life of the fixture, and reducing maintenance costs.

[0018] 2. When in use, this utility model integrates the air pump, pipeline, and nozzle into the air box of the fixture seat or nearby. The layout is reasonable, does not occupy extra space, avoids interference from external pipelines, and is both aesthetically pleasing and safe. By setting nozzles at different angles and positions, such as direct spray nozzles and inclined nozzles, an effective airflow combination can be formed to achieve all-round, dead-angle-free cleaning of complex fixture structures, such as multiple positioning pins and irregular support surfaces. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the pneumatic clamping seat structure for the workpiece of this utility model; Figure 3 This is a schematic diagram of the tool magazine structure of this utility model; Figure 4 This is a schematic diagram of the gas box structure of this utility model.

[0021] In the diagram, 1. Milling machine body; 2. Workpiece pneumatic fixture holder; 3. Air box; 4. Hinge seat; 5. Drive arm; 6. Fixture head; 7. Cylinder; 8. Telescopic rod; 9. Air pump; 10. Air supply pipe; 11. Diverter pipe; 12. Nozzle; 13. Protective net; 14. Anti-slip mat; 15. Support; 16. Milling head; 17. Vertical feed transmission device; 18. Deburring device; 19. Hinge groove; 20. Extension tube; 21. Inclined nozzle; 22. Tool magazine; 23. Cable transfer device. Detailed Implementation

[0022] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0023] Reference Figure 1-4This utility model provides a milling machine fixture, including a milling machine body 1. A pneumatic workpiece clamping seat 2 is fixedly installed on one side of the worktable of the milling machine body 1 by bolts or other means. The clamping seat 2 forms the basic platform of the entire fixture. A sealed air box 3 is fixedly connected to each of the left and right sides of the pneumatic workpiece clamping seat 2. A hinge seat 4 is welded and fixed to the top of the air box 3. The middle part of the drive arm 5 is hinged to the hinge seat 4 via a pin, forming a lever fulcrum. The top of the drive arm 5 is also hinged to a clamping head 6, with the top of the drive arm 5 hinged to the middle of the clamping head 6. The driving part includes a cylinder 7 and a telescopic rod 8. The cylinder 7 is firmly installed on the outer side of the air box 3 via a bracket 15. The piston rod of the cylinder 7, i.e., the end of the telescopic rod 8, is hinged to the lower power arm of the clamping head 6. When the cylinder 7 is vented and pushes the telescopic rod 8 to extend, the clamping head 6 is driven to rotate around the top of the drive arm 5 as a fulcrum, thereby clamping the workpiece. When the telescopic rod 8 retracts, the clamp head 6 lifts and releases the workpiece. An air pump 9 is fixedly installed on the inner wall of the air box 3. An air supply pipe 10 is fixedly connected to the output end of the air pump 9. A branch pipe 11 is fixedly connected to the top of the air supply pipe 10, and a nozzle 12 is fixedly connected to the top of the branch pipe 11. Specifically, the branch pipe 11 can be designed as a main pipe, arranged along the length of the clamp seat.

[0024] Furthermore, such as Figure 4 As shown, the bottom of the air box 3 has an air inlet, and the inner wall of the air inlet is fixedly connected to a protective net 13, which is used to filter the intake air and prevent large particles of debris from entering the air pump 9.

[0025] Furthermore, such as Figure 4 As shown, an anti-slip pad 14 is fixedly connected to the bottom of the clamp head 6. The outer wall of the anti-slip pad 14 is coated with a wear-resistant coating. The anti-slip pad 14 is installed on the bottom of the clamp head 6 to increase friction and protect the workpiece.

[0026] Furthermore, there are multiple nozzles 12, which are equidistantly distributed.

[0027] Specifically, multiple nozzles 12 are fixedly connected to the diversion pipe 11 according to the distribution of the fixture positioning points. The nozzles 12 are equidistant or distributed as needed. Specifically, the nozzles 12 have vertically upward nozzles and are mainly used for cleaning the fixture head 6.

[0028] Furthermore, such as Figure 4 As shown, to optimize the cleaning effect, an extension pipe 20 is fixedly connected to the top of the diversion pipe 11, and an inclined nozzle 21 is installed at the top of the extension pipe 20, which is specifically used for cleaning the processing table surface of the fixture seat. Specifically, the number of inclined nozzles 21 is set to multiple, and the size of the inclined nozzles 21 is the same as the size of the nozzle 12.

[0029] Regarding the implementation of the linkage function, in this embodiment, the linkage between cylinder 7 and air pump 9 is achieved through an external PLC or pneumatic-electric control unit (not shown in the figure), but this is a common choice for those skilled in the art. The input signal of this control unit receives the "release / clamp" command from the milling machine CNC system or an independent operation button, and its output signal controls the solenoid valve driving cylinder 7 on one side and the start and stop of air pump 9 on the other.

[0030] Furthermore, a milling head 16 and a vertical feed transmission device 17 can be installed on the milling machine body 1 for machining, and the raising and lowering of the milling head 16 can be controlled by the vertical feed transmission device 17.

[0031] Specifically, such as Figure 2 As shown, the vertical feed transmission device 17 is configured as a servo motor and a linear module. The milling head 16 is connected to the linear module, and the servo motor controls the raising and lowering of the milling head 16 through the linear module.

[0032] Furthermore, to improve process integration, a deburring device 18 can be installed on one side of the machine tool for online processing of the machined workpiece. Specifically, such as... Figure 3 As shown, the deburring device 18 includes a drive motor and a grinding disc. The grinding disc is fixedly connected to the end of the drive motor's shaft. The drive motor drives the grinding disc to rotate, bringing the workpiece into contact with the rotating grinding disc to achieve the deburring operation. Specifically, as shown... Figure 3 As shown, the top of the milling machine body 1 can also be equipped with a tool magazine 22, and the bottom can be equipped with a cable tray 23 to improve the overall function of the machine tool. One end of the clamping head 6 is provided with a hinge groove 19 located at the bottom of the clamping head 6, and the top of the telescopic rod 8 is allowed to extend into and hinge.

[0033] In this invention, when the operator or the automation program issues a "release" command, the control unit first or simultaneously sends a start signal to the circuit of the air pump 9, and the air pump 9 starts working. High-pressure airflow is instantly ejected from all nozzles 12 and the tilting nozzle 21. The control unit switches the reversing valve of the cylinder 7, causing the telescopic rod 8 to retract and the clamping head 6 to lift. At this time, the high-speed airflow blows precisely onto the clamping surface of the newly exposed clamping head 6 and the positioning surface of the clamping seat 2 after the workpiece has been removed. The blowing can continue for a preset time, such as 2-5 seconds, which can be set by the controller to ensure that the chips are completely blown away. After the blowing time is over, the control unit automatically shuts off the air pump 9, and the system enters the waiting clamping state. When the operator issues a "clamp" command, the control unit only controls the reversing valve of the cylinder 7 to actuate, causing the telescopic rod 8 to extend and drive the clamping head 6 to clamp the workpiece. During this process, the air pump 9 does not start to avoid interfering with the placement of the workpiece or causing chip splashing and contamination.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixture for a milling machine, comprising a milling machine body, characterized in that: A workpiece pneumatic fixture seat is provided on one side of the milling machine body. Air boxes are fixedly connected to both sides of the workpiece pneumatic fixture seat. A hinge seat is fixedly connected to the top of the air box. A drive arm is hinged to the outer wall of the hinge seat. A fixture head is hinged to the top of the drive arm. The drive arm is hinged to the middle of the fixture head. A cylinder is fixedly connected to one side of the air box. A telescopic rod is fixedly connected to the output end of the cylinder. The top of the telescopic rod is hinged to one end of the fixture head. An air pump is fixedly connected to the inner wall of the air box. An air supply pipe is fixedly connected to the output end of the air pump. A distributor pipe is fixedly connected to the top of the air supply pipe. A nozzle is fixedly connected to the top of the distributor pipe.

2. The milling machine fixture according to claim 1, characterized in that: An air inlet is provided at the bottom of the air box, and a protective net is fixedly connected to the inner wall of the air inlet.

3. A milling machine fixture according to claim 1, characterized in that: An anti-slip pad is fixedly connected to the bottom of the clamp head, and the outer wall of the anti-slip pad is coated with a wear-resistant coating.

4. A milling machine fixture according to claim 1, characterized in that: A bracket is fixedly connected to one side of the air box, and the inner wall of the bracket is fixedly connected to the cylinder.

5. A milling machine fixture according to claim 1, characterized in that: A milling head is provided on the top of the milling machine body, and a vertical feed transmission device for the milling head is provided on the top of the milling head.

6. A milling machine fixture according to claim 1, characterized in that: A deburring device is provided on one side of the milling machine body, and a hinge groove is provided at one end of the fixture head.

7. A milling machine fixture according to claim 1, characterized in that: The number of nozzles is multiple, and the multiple nozzles are distributed at equal intervals.

8. A milling machine fixture according to claim 1, characterized in that: An extension tube is fixedly connected to the top of the diverter tube, and an inclined nozzle is fixedly connected to the top of the extension tube.

9. A milling machine fixture according to claim 8, characterized in that: The number of inclined nozzles is multiple, and the inclined nozzles are the same size as the nozzles.

10. A milling machine fixture according to claim 1, characterized in that: The top of the milling machine body is equipped with a tool magazine, and one side of the bottom of the milling machine body is equipped with a cable pulling device.

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