An electric grinding device mounted on a turret seat of a CNC lathe

Abstract

The utility model discloses a kind of electric grinding appliances mounted on CNC lathe turret seat, it is related to lathe accessory technical field, including telescopic cylinder, driving motor and connecting assembly, telescopic cylinder is fixedly connected on turret seat, the output end of telescopic cylinder is provided with driving motor, driving motor is connected with grinding head by connecting assembly, connecting assembly is detachably set on driving motor, grinding head is detachably set on connecting assembly. The connecting structure of telescopic cylinder and driving motor, let the position of grinding head and grinding pressure regulation be more efficient. Telescopic cylinder telescopic directly drives driving motor and grinding head to move, can quickly respond the change of grinding position, in combination with the grinding power provided by driving motor, the efficient cooperation of grinding action is realized, the cooperation delay between each link is reduced, and overall grinding speed is improved.

Description

Technical Field

[0001] This utility model relates to the field of lathe accessories technology, and in particular to an electric grinding tool installed on the turret of a CNC lathe. Background Technology

[0002] In the CNC lathe machining process, the cutting tool, as a key component directly involved in the cutting operation, directly affects the quality of the machined parts, production efficiency, and tool life. However, as machining time increases, the cutting tool inevitably experiences wear and dulling. If it is not ground and repaired in time, it can lead to increased surface roughness and out-of-tolerance dimensional accuracy of the machined parts, or even tool chipping or breakage, causing machining interruptions and increasing production costs.

[0003] Currently, the traditional method for grinding CNC lathe tools relies heavily on manual operation. Operators need to remove the worn tool from the turret, transport it to specialized grinding equipment for grinding, and then reinstall it on the turret for tool setting and adjustment. This method has several drawbacks: firstly, the manual disassembly, installation, and tool setting process is cumbersome and time-consuming, severely impacting the continuous operation capability of the CNC lathe and reducing production efficiency; secondly, the quality of manual grinding is greatly affected by the operator's skill level, experience, and sense of responsibility, making it difficult to guarantee the consistency and precision of the ground tool, easily leading to over- or under-grinding; furthermore, frequent manual intervention increases the risk of human error, potentially causing unnecessary damage to the tool and lathe.

[0004] In some production scenarios, fixed grinding devices have been used to grind cutting tools. However, these devices are usually installed in a fixed position and cannot be flexibly adjusted with the movement of the tool turret. They can only grind tools in specific locations, resulting in a narrow range of applications. Moreover, the pressure and feed rate during the grinding process are difficult to control precisely, leading to unsatisfactory grinding results that cannot meet the requirements of high-precision machining.

[0005] Therefore, in order to overcome the problems of low efficiency, insufficient precision, and cumbersome operation of traditional tool grinding methods, developing a device that can be directly installed on the CNC lathe turret holder and can move in coordination with the turret to achieve rapid and precise tool grinding has become an urgent technical problem to be solved in the current CNC lathe machining field. Utility Model Content

[0006] The purpose of this utility model is to overcome the defects existing in the prior art and to propose an electric grinding device that is installed on the turret of a CNC lathe.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An electric grinding tool mounted on a CNC lathe turret includes a telescopic cylinder, a drive motor, and a connecting assembly. The telescopic cylinder is fixedly connected to the turret, and the output end of the telescopic cylinder is provided with a drive motor. The drive motor is connected to a grinding head through the connecting assembly. The connecting assembly is detachably mounted on the drive motor, and the grinding head is detachably mounted on the connecting assembly.

[0009] Furthermore, the telescopic cylinder is a rodless telescopic cylinder, and a mounting base is provided at the bottom of the telescopic cylinder. The telescopic cylinder is fixedly connected to the tower base through the mounting base.

[0010] Furthermore, the output end of the telescopic cylinder is provided with a connecting rod, and the connecting assembly is detachably mounted on the connecting rod.

[0011] Furthermore, the connecting assembly includes a connecting sleeve, a spindle rotatably connected inside the connecting sleeve, an installation groove provided at the end of the spindle, the installation groove being adapted to the connecting rod, and multiple sets of positioning grooves arranged in a circular array on the outside of the installation groove on the spindle, the positioning grooves communicating with the installation groove, a steel ball being movably connected inside the positioning groove, the end of the connecting rod having a frustum structure, and a groove corresponding to the steel ball being provided at the end of the connecting rod.

[0012] Furthermore, the diameter of the positioning groove is 0.5-2mm larger than the diameter of the steel ball, allowing the steel ball to move up and down within the positioning groove. An opening is formed at the connection point between the positioning groove and the mounting groove for the steel ball to pass through, and the diameter of the opening is smaller than the diameter of the steel ball.

[0013] Furthermore, threaded grooves are provided at both ends of the inner wall of the connecting sleeve, and a first retaining ring and a second retaining ring are adapted to be connected on the threaded grooves. The mandrel is disposed between the first retaining ring and the second retaining ring, and three sets of bearings are disposed between the mandrel and the connecting sleeve. The bearings are disposed at both ends and the middle of the mandrel, and the steel balls are disposed corresponding to the bearings at the ends.

[0014] Furthermore, one end of the connecting sleeve is provided with an end cap, and an expansion sleeve is provided between the end cap and the connecting sleeve. The inner wall of the end of the connecting sleeve is a conical surface, which is adapted to the outer wall of the expansion sleeve.

[0015] Beneficial effects

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] From an overall structural perspective, the telescopic cylinder is fixedly connected to the turret base, and its output end is equipped with a drive motor. The drive motor is then connected to the grinding head via a connecting assembly. This compact and orderly connection method allows the entire tool to be stably mounted on the CNC lathe turret base. This mounting feature allows the tool to move flexibly with the turret, precisely aligning with tools in different positions without requiring additional tool position adjustments, thus expanding the grinding range and adapting to the grinding needs of various tools.

[0018] The connection structure between the telescopic cylinder and the drive motor allows for more efficient adjustment of the grinding head position and grinding pressure. The extension and retraction of the telescopic cylinder directly drives the drive motor and grinding head, enabling rapid response to changes in the grinding position. Combined with the grinding power provided by the drive motor, this achieves highly efficient coordination of the grinding actions, reduces coordination delays between various components, and improves the overall grinding speed.

[0019] The connecting assembly links the drive motor to the grinding head, ensuring stable power transmission and making grinding head replacement more convenient. When it is necessary to change grinding heads for different tools or grinding needs, the connecting assembly allows for quick operation without adjusting the drive motor or other components, reducing replacement costs and time, and enhancing the versatility and flexibility of the tool. Attached Figure Description

[0020] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0021] Figure 1 This is a schematic diagram of the overall structure of an electric grinding tool.

[0022] Figure 2 This is a schematic diagram of the internal structure of the connecting component.

[0023] Figure 3 This is a schematic diagram of the mandrel structure.

[0024] Figure 4 This is a schematic diagram of the disassembled structure of the connecting components.

[0025] In the diagram: 1. Telescopic cylinder; 2. Drive motor; 3. Connecting rod; 4. Connecting sleeve; 5. Mandrel; 6. Expansion sleeve; 7. End cap; 8. Grinding head; 9. First retaining ring; 10. Second retaining ring; 11. Bearing. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0028] Reference Figures 1-4 An electric grinding tool installed on a CNC lathe turret base includes a telescopic cylinder 1, a drive motor 2, and a connecting assembly. The telescopic cylinder 1 is fixedly connected to the turret base. The output end of the telescopic cylinder 1 is provided with the drive motor 2. The drive motor 2 is connected to the grinding head 8 through the connecting assembly. The connecting assembly is detachably mounted on the drive motor 2, and the grinding head 8 is detachably mounted on the connecting assembly.

[0029] The telescopic cylinder 1 is fixedly connected to the turret base, and its output end is equipped with a drive motor 2. The drive motor 2 is then connected to the grinding head 8 through a connecting assembly. This connection method allows the entire instrument to be stably installed on the CNC lathe turret base. It can also precisely align with grinding heads in different positions without the need for additional instrument position adjustments, thus expanding the grinding range and adapting to the grinding needs of various grinding heads.

[0030] The connection structure between the telescopic cylinder 1 and the drive motor 2 allows for more efficient adjustment of the position of the grinding head 8 and the grinding pressure. The extension and retraction of the telescopic cylinder 1 directly drives the drive motor 2 and the grinding head 8 to move, enabling rapid response to changes in the grinding position. Combined with the grinding power provided by the drive motor 2, this achieves highly efficient coordination of the grinding actions and improves the overall grinding speed.

[0031] The connecting assembly connects the drive motor 2 to the grinding head 8, ensuring stable power transmission and facilitating the replacement of the grinding head 8. When changing the grinding head 8 for different grinding needs, the connecting assembly allows for quick operation without adjusting the drive motor 2 or other components, reducing replacement costs and time and enhancing the versatility and flexibility of the tool. When the connecting assembly is worn or damaged, it can be removed from the drive motor 2 for individual replacement or repair without replacing the entire drive motor 2, significantly reducing maintenance costs. For the grinding head 8, different grinding needs may require different types and specifications. The detachable design of the grinding head 8 and the connecting assembly allows operators to quickly change the appropriate grinding head 8 according to actual processing needs without adjusting the connecting assembly and drive motor 2, further improving the efficiency of grinding head 8 replacement.

[0032] In other preferred embodiments, the telescopic cylinder 1 is a rodless telescopic cylinder 1, with a mounting base at its bottom, and the telescopic cylinder 1 is fixedly connected to the tower base via the mounting base. The biggest advantage of the rodless telescopic cylinder 1 compared to the traditional rod-type telescopic cylinder 1 is the significantly improved space utilization. It eliminates the need for piston rod extension for actuation, avoiding the piston rod occupying additional axial space during extension and retraction, thus making the entire electric grinding tool more compact.

[0033] In other preferred embodiments, the output end of the telescopic cylinder 1 is provided with a connecting rod 3, and the connecting component is detachably mounted on the connecting rod 3.

[0034] Specifically, the connecting assembly includes a connecting sleeve, a spindle 5 is rotatably connected inside the connecting sleeve, the end of the spindle 5 is provided with a mounting groove, the mounting groove is adapted to the connecting rod, and multiple sets of positioning grooves arranged in a ring array are opened on the spindle 5 outside the mounting groove. The positioning grooves are connected to the mounting grooves, and steel balls are movably connected in the positioning grooves. The end of the connecting rod is a frustum structure, and the end of the connecting rod is provided with a groove corresponding to the steel ball.

[0035] When the frustum structure of connecting rod 3 is inserted into the connecting sleeve, the steel ball abuts against the inner wall of the groove at the end of connecting rod 3. The inclined surface of the frustum structure and the steel ball work together to form a stable locking relationship, ensuring a firm connection between the connecting assembly and connecting rod 3. This effectively transmits the torque and grinding force generated by the drive motor 2 during operation, preventing relative slippage or loosening during high-speed grinding and ensuring the stability and safety of the grinding operation. Simultaneously, this structural design makes disassembly of the connecting assembly and connecting rod 3 extremely convenient. Only a certain axial force needs to be applied to overcome the locking force between the steel ball and the groove to separate the connecting assembly from the connecting rod 3, without the need for complex tools. This greatly simplifies the replacement and maintenance process of the drive motor 2 and grinding head 8, reduces equipment downtime, and improves production efficiency.

[0036] Furthermore, the rolling contact between the steel balls and the groove reduces frictional wear between components during connection and disassembly, extending the service life of the connecting rod 3 and the connecting assembly, and lowering equipment maintenance costs. The even distribution of multiple sets of steel balls also ensures more balanced stress distribution, further enhancing the reliability and durability of the connection structure.

[0037] Specifically, the diameter of the positioning groove is 1-2 mm larger than the diameter of the steel ball, allowing the steel ball to move up and down within the positioning groove. An opening is formed at the junction of the positioning groove and the mounting groove for the steel ball to pass through, and the diameter of the opening is smaller than the diameter of the steel ball. The top of the positioning groove can be configured as an arc-shaped structure that fits the outer wall of the steel ball. After being squeezed by the connecting rod, the steel ball can move away from the opening and abut against the bearing of the connecting sleeve.

[0038] Specifically, the inner wall of the connecting sleeve has threaded grooves at both ends, and a first retaining ring 9 and a second retaining ring 10 are fitted onto these grooves. The mandrel 5 is positioned between the first retaining ring 9 and the second retaining ring 10. Three sets of bearings 11 are installed between the mandrel 5 and the connecting sleeve, with the bearings located at both ends and the middle of the mandrel 5. Steel balls are correspondingly positioned to the bearings at the ends. The two sets of retaining rings restrict the position of the mandrel, preventing it from detaching from the connecting sleeve. The bearings, positioned between the connecting sleeve and the mandrel, ensure that the mandrel can rotate relative to the connecting sleeve. Under normal use, the connecting sleeve needs to be fixedly mounted on a lathe.

[0039] Specifically, an end cap 7 is provided at one end of the connecting sleeve, and an expansion sleeve 6 is provided between the end cap 7 and the connecting sleeve. The inner wall of the end of the connecting sleeve is conical and matches the outer wall of the expansion sleeve 6. The inner wall of the end of the connecting sleeve and the outer wall of the expansion sleeve 6, together with the end cap 7, form a reliable expansion and fixing structure. When the end cap 7 is tightened, the end cap 7 pushes the expansion sleeve 6 towards the conical surface. Due to the guiding effect of the conical surface, the expansion sleeve 6 will radially contract, thereby tightly holding the mating grinding head 8, achieving a firm connection. This expansion and fixing method has good self-locking properties, effectively resisting vibration and impact during grinding, preventing loosening of the connecting parts, and ensuring the stability and safety of the grinding operation.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An electric grinding tool mounted on a CNC lathe turret, characterized in that, The device includes a telescopic cylinder, a drive motor, and a connecting assembly. The telescopic cylinder is fixedly connected to the tower base, and the output end of the telescopic cylinder is equipped with a drive motor. The drive motor is connected to the grinding head through the connecting assembly, and the connecting assembly is detachably mounted on the drive motor. The grinding head is detachably mounted on the connecting assembly.

2. The electric grinding tool mounted on a CNC lathe turret as described in claim 1, characterized in that, The telescopic cylinder is a rodless telescopic cylinder, and a mounting base is provided at the bottom of the telescopic cylinder. The telescopic cylinder is fixedly connected to the tower base through the mounting base.

3. The electric grinding tool mounted on a CNC lathe turret as described in claim 1, characterized in that, The output end of the telescopic cylinder is provided with a connecting rod, and the connecting component is detachably mounted on the connecting rod.

4. The electric grinding tool mounted on a CNC lathe turret according to claim 3, characterized in that, The connecting assembly includes a connecting sleeve, a spindle rotatably connected inside the connecting sleeve, an installation groove at the end of the spindle, the installation groove being adapted to the connecting rod, and multiple sets of positioning grooves arranged in a ring array on the outside of the installation groove on the spindle, the positioning grooves communicating with the installation groove, a steel ball being movably connected inside the positioning groove, the end of the connecting rod having a frustum structure, and a groove corresponding to the steel ball being opened at the end of the connecting rod.

5. An electric grinding tool mounted on a CNC lathe turret according to claim 4, characterized in that, The diameter of the positioning groove is 0.5-2mm larger than the diameter of the steel ball, allowing the steel ball to move up and down within the positioning groove. An opening is formed at the connection point between the positioning groove and the mounting groove for the steel ball to pass through, and the diameter of the opening is smaller than the diameter of the steel ball.

6. An electric grinding tool mounted on a CNC lathe turret according to claim 4, characterized in that, The inner wall of the connecting sleeve is provided with threaded grooves at both ends, and a first retaining ring and a second retaining ring are adapted to be connected on the threaded grooves. The mandrel is disposed between the first retaining ring and the second retaining ring. Three sets of bearings are disposed between the mandrel and the connecting sleeve, with the bearings disposed at both ends and the middle of the mandrel. The steel balls are disposed corresponding to the bearings at the ends.

7. An electric grinding tool mounted on a CNC lathe turret according to claim 4, characterized in that, One end of the connecting sleeve is provided with an end cap, and an expansion sleeve is provided between the end cap and the connecting sleeve. The inner wall of the end of the connecting sleeve is a conical surface and is adapted to the outer wall of the expansion sleeve.

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