Special fixture for cylindrical grinding machine for machining shaft workpieces

Abstract

The utility model discloses a fixture special for a cylindrical grinding machine for machining shaft workpieces, and relates to the field of numerical control grinding machines. The device comprises a mounting seat body, a clamp assembly is arranged in the mounting seat body, the mounting seat body is further slidably connected with an auxiliary supporting piece, the auxiliary supporting piece comprises a supporting head, three sets of pulleys and a clamping head, the pulleys are rotationally connected into the supporting head, the clamping head is arranged above the supporting head, and the pulleys are used for making contact with the long-axis workpiece. The supporting head is used for supporting the long-axis workpiece, and the clamping head is used for clamping the milling liquid spray head. According to the device, on one hand, when a long-column-type shaft workpiece is machined, the workpiece can be supported at the middle section position through the auxiliary supporting piece, the workpiece is prevented from being bent due to stress on the two sides, meanwhile, the device can move along with movement of a grinding wheel, and a spray head fixed to a clamping connector in the device sprays milling liquid to the machining position; therefore, the nozzle can be clamped and moved without additional components.

Description

Technical Field

[0001] This utility model relates to the field of CNC grinding machine technology, specifically a special fixture for external cylindrical grinding machines used for machining shaft-type workpieces. Background Technology

[0002] Cylindrical grinding machines are used to process the outer surfaces of workpieces with cylindrical, conical, or other shaped generatrices, as well as the end faces of shaft shoulders. They are among the most widely used grinding machines, capable of machining various cylindrical and conical outer surfaces and shaft shoulder end faces. The working principle of a cylindrical grinding machine is mainly based on using a high-speed rotating grinding wheel to grind the surface of the workpiece. During grinding, the headstock and tailstock form a clamping fixture that supports and rotates the workpiece, while the grinding wheel head makes a transverse feed motion to achieve the grinding of the workpiece.

[0003] Due to the varying types and sizes of workpieces, existing basic grinding machine fixtures all have some shortcomings. For example, for a type of long cylindrical shaft workpiece, although the clamping devices on both sides can hold it tightly due to its excessive length, the stress on both sides and the extrusion of the grinding wheel can cause deformation and damage to the long shaft workpiece, resulting in poor product quality. To address these issues, this utility model provides a special fixture for external cylindrical grinding machines for machining shaft workpieces. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a special fixture for external cylindrical grinding machines used in machining shaft-type workpieces. This solves the problem that existing basic grinding machine fixtures all have some defects due to differences in workpiece type and size. For example, for a type of long cylindrical shaft workpiece, although the clamping devices on both sides can clamp it due to its excessive length, the stress on both sides and the extrusion of the grinding wheel can cause deformation and damage to the long shaft workpiece, resulting in poor product quality.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a special fixture for external cylindrical grinding machines for machining shaft-type workpieces, comprising a mounting base, a fixture assembly disposed within the mounting base, and an auxiliary support component slidably connected to the mounting base. The auxiliary support component includes a support head, pulleys, and a clamping connector. The pulleys are rotatably connected within the support head, and the clamping connector is disposed above the support head. The pulleys are arranged in three sets. The pulleys are used to contact long-shaft workpieces, the support head is used to support long-shaft workpieces, and the clamping connector is used to engage milling fluid nozzles.

[0006] Preferably, an observation glass is embedded on one side of the mounting base, a groove is provided on the side of the mounting base near the observation glass, a diversion inclined plate is fixedly connected inside the mounting base, the diversion inclined plate is used to concentrate and divert waste milling fluid, the auxiliary support is slidably connected in the groove, and the observation glass is used to see the processing status inside the mounting base.

[0007] Preferably, a telescopic cylinder is fixedly connected to one end of the mounting base, and a servo motor is fixedly connected to the other end of the mounting base. Two sets of servo motors are provided. The clamping assembly includes a rotary chuck and a displacement clamp. The rotary chuck is fixedly connected to the power output end of the servo motor, and the displacement clamp is fixedly connected to the power output end of the telescopic cylinder. The rotary chuck is used to rotate the workpiece for machining, and the displacement clamp is used to clamp the workpiece for machining.

[0008] Preferably, the auxiliary support further includes a slider, a support block, and a hanger rod, wherein the slider is slidably connected in a groove, the support block is fixedly connected to the top of the slider, the support head is fixedly connected to the outer end of the support block, the hanger rod is fixedly connected to the top of the support head, and the clamping head is fixedly connected to one side of the hanger rod.

[0009] Preferably, a slide rod is fixedly connected inside the slide groove, and a threaded rod is rotatably connected inside the slide groove. One end of the threaded rod is fixedly connected to the power output end of the servo motor, and the slider is threadedly connected to the threaded rod and slidably connected to the slide rod.

[0010] This utility model discloses a special fixture for external cylindrical grinding machines for machining shaft-type workpieces, which has the following beneficial effects: This special fixture for external cylindrical grinding machines for machining shaft-type workpieces, by setting auxiliary support members, can support the workpiece at the middle position when machining long cylindrical shaft-type workpieces, preventing the stress on both sides from causing it to bend. At the same time, it can move with the movement of the grinding wheel, so that the nozzle fixed on the internal clamping joint sprays milling fluid onto the machining area, so that the nozzle does not need to be clamped and moved by additional components. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0012] Figure 1 This is a schematic diagram of the overall front structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the overall top structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the internal structure of the mounting base of this utility model;

[0015] Figure 4This is a schematic diagram of the overall structure of the auxiliary support component of this utility model.

[0016] In the diagram: 1. Mounting base; 11. Observation glass; 12. Slide groove; 13. Servo motor; 14. Telescopic cylinder; 15. Drainage ramp; 16. Slide rod; 17. Threaded rod; 2. Clamp assembly; 21. Rotary chuck; 22. Displacement clamp; 3. Auxiliary support component; 31. Slider; 32. Support block; 33. Support head; 34. Pulley; 35. Hanging rod; 36. Snap-fit ​​connector. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] This application provides a special fixture for external cylindrical grinding machines used for machining shaft-type workpieces, solving the problem that existing basic grinding machine fixtures all have some shortcomings due to differences in workpiece type and size. For example, for a type of long cylindrical shaft workpiece, although the clamping parts on both sides can clamp it due to its excessive length, the stress on both sides and the extrusion of the grinding wheel can cause deformation and damage to the long shaft workpiece, resulting in poor product quality.

[0019] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0020] This utility model discloses a special fixture for external cylindrical grinding machines used for machining shaft-type workpieces.

[0021] According to the appendix Figure 1-4 As shown,

[0022] The system includes a mounting base 1, within which a clamping assembly 2 is installed. An auxiliary support 3 is slidably connected to the mounting base 1. The auxiliary support 3 includes a support head 33, pulleys 34, and a clamping connector 36. The pulleys 34 are rotatably connected within the support head 33, and the clamping connector 36 is positioned above the support head 33. Three sets of pulleys 34 are provided. The pulleys 34 are used to contact long-axis workpieces, the support head 33 is used to support the long-axis workpieces, and the clamping connector 36 is used to engage the milling fluid nozzle. In use, the auxiliary support 3 supports the clamped workpiece through the support head 33. When the clamping assembly 2 rotates the workpiece, the pulleys 34 rotate with the workpiece, preventing rotational friction and wear between the support head 33 and the workpiece. Simultaneously, the auxiliary support 3 slides within the mounting base 1, remaining adjacent to the grinding wheel, allowing the milling fluid nozzle engaged with the clamping connector 36 to assist in milling at the milling location, while preventing the workpiece from bending due to pressure from the grinding wheel.

[0023] An observation glass 11 is embedded on one side of the mounting base 1. A groove 12 is provided on the side of the mounting base 1 near the observation glass 11. A diversion ramp 15 is fixedly connected inside the mounting base 1. The diversion ramp 15 is used to concentrate and divert waste milling fluid. The auxiliary support 3 is slidably connected in the groove 12. The observation glass 11 is used to see the processing status inside the mounting base 1. The observation glass 11 is used to monitor the situation in the processing room during processing to prevent accidents. The diversion ramp 15 diverts the waste milling fluid to one place for centralized treatment by gravity, preventing the milling fluid from splashing in the processing room and causing cleaning difficulties.

[0024] One end of the mounting base 1 is fixedly connected to a telescopic cylinder 14, and the other end of the mounting base 1 is fixedly connected to a servo motor 13. Two sets of servo motors 13 are provided. The clamping assembly 2 includes a rotary chuck 21 and a displacement clamp 22. The rotary chuck 21 is fixedly connected to the power output end of the servo motor 13, and the displacement clamp 22 is fixedly connected to the power output end of the telescopic cylinder 14. The rotary chuck 21 is used for rotating the workpiece, and the displacement clamp 22 is used for clamping the workpiece. The auxiliary support 3 also includes a slider 31, a support block 32, and a lifting rod 35. The slider 31... The slider 31 is slidably connected in the slide groove 12. The support block 32 is fixedly connected to the top of the slider 31. The support head 33 is fixedly connected to the outer end of the support block 32. The hanger 35 is fixedly connected to the top of the support head 33. The snap-fit ​​connector 36 is fixedly connected to one side of the hanger 35. The slide rod 16 is fixedly connected in the slide groove 12. The threaded rod 17 is rotatably connected in the slide groove 12. One end of the threaded rod 17 is fixedly connected to the power output end of the servo motor 13. The slider 31 is threadedly connected to the threaded rod 17. The slider 31 is slidably connected to the slide rod 16. The slider 31 slides through the threaded rod 17.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A special fixture for external cylindrical grinding machines for machining shaft-type workpieces, comprising a mounting base (1) and a fixture assembly (2) disposed within the mounting base (1), characterized in that, An auxiliary support (3) is also slidably connected to the mounting base (1); The auxiliary support (3) includes a support head (33), a pulley (34), and a snap-fit ​​connector (36). The pulley (34) is rotatably connected inside the support head (33), and the snap-fit ​​connector (36) is located above the support head (33); Among them, the pulley (34) is provided in three sets. The pulley (34) is used to contact the long shaft workpiece, the support head (33) is used to support the long shaft workpiece, and the clamping head (36) is used to clamp the milling fluid nozzle.

2. The special fixture for external cylindrical grinding machines for machining shaft-type workpieces according to claim 1, characterized in that: An observation glass (11) is inlaid on one side of the mounting base (1), and a sliding groove (12) is provided on the side of the mounting base (1) near the observation glass (11). A drainage inclined plate (15) is fixedly connected inside the mounting base (1). The diversion ramp (15) is used to concentrate the diversion of waste milling fluid, the auxiliary support (3) is slidably connected in the groove (12), and the observation glass (11) is used to see through the processing status inside the mounting base (1).

3. The special fixture for external cylindrical grinding machines for machining shaft-type workpieces according to claim 1, characterized in that: One end of the mounting base (1) is fixedly connected to a telescopic cylinder (14), and the other end of the mounting base (1) is fixedly connected to a servo motor (13). The servo motor (13) is provided in two sets. The clamping assembly (2) includes a rotary chuck (21) and a displacement clamp (22). The rotary chuck (21) is fixedly connected to the power output end of the servo motor (13), and the displacement clamp (22) is fixedly connected to the power output end of the telescopic cylinder (14). The rotary chuck (21) is used to rotate the workpiece, and the displacement clamp (22) is used to clamp the workpiece.

4. The special fixture for external cylindrical grinding machines for machining shaft-type workpieces according to claim 2, characterized in that: The auxiliary support (3) also includes a slider (31), a support block (32), and a lifting rod (35); The slider (31) is slidably connected in the groove (12), the support block (32) is fixedly connected to the top of the slider (31), the support head (33) is fixedly connected to the outer end of the support block (32), the rod (35) is fixedly connected to the top of the support head (33), and the snap-fit ​​connector (36) is fixedly connected to one side of the rod (35).

5. A special fixture for external cylindrical grinding machines for machining shaft-type workpieces according to claim 4, characterized in that: A slide rod (16) is fixedly connected inside the slide groove (12), and a threaded rod (17) is rotatably connected inside the slide groove (12). One end of the threaded rod (17) is fixedly connected to the power output end of the servo motor (13). The slider (31) is threadedly connected to the threaded rod (17), and the slider (31) is slidably connected to the slide rod (16).

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