Main shaft and auxiliary shaft assembly milling key groove machining device

By designing a main and auxiliary shaft assembly for milling keyways that integrates a water storage tank and a one-way valve, the rotation of the milling cutter and the water supply are integrated, solving the problems of equipment size and power cost in the existing technology, and improving processing efficiency and quality.

CN224011302UActive Publication Date: 2026-03-20CHONGQING EAST EUROPE MASCH MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

Existing keyway machining equipment requires water spraying for cooling and chip removal when the milling cutter rotates at high speed, which increases the size of the equipment and the cost of electricity.

Method used

A keyway milling device using a main and auxiliary spindle assembly is employed. It utilizes a water tank and a one-way valve system, and a drive motor is used to realize the rotation of the milling cutter and water supply, automatically cooling and removing chips.

Benefits of technology

It reduces equipment size, lowers electricity costs, and improves the quality of processed surfaces.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224011302U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of machining equipment, in particular to a main shaft and auxiliary shaft assembly milling key groove machining device which comprises a table body, a rotating rod is fixedly installed on an output shaft of a driving motor, and a milling cutter is fixedly installed at the bottom end of the rotating rod. A reciprocating thread is formed in the surface of the rotating rod, the rotating rod is sleeved with a sliding block in a threaded mode, a piston rod is fixedly installed on the lower surface of the sliding block, a vertical rod is fixedly installed on the lower surface of a shell of the driving motor through a connecting part, a water tank is formed in the upper surface of the vertical rod, and the piston rod is vertically and slidably inserted into the water tank in a sealed mode; the bottom end of the vertical rod fixedly communicates with a water outlet pipe, a placement plate is fixedly installed on the surface of the connecting block, a water storage tank is fixedly installed on the upper surface of the placement plate, and the vertical rod communicates with the water storage tank through a water inlet pipe. The effects of controlling the milling cutter to rotate and supplying water can be achieved at the same time only through one driving motor, the equipment size is reduced, and meanwhile the electric power cost is reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical processing equipment technical field especially relates to a main and auxiliary shaft assembly milling keyway processing device. BACKGROUND

[0002] In the mechanical manufacturing field, the main and auxiliary shaft assembly as the key transmission component of various mechanical equipment needs to set the keyway on its surface through the processing device in the production process, and the keyway processing quality directly influences the overall performance and stability of the equipment.

[0003] The existing keyway processing device still needs to cool the milling cutter through water spraying, remove the cutting chips and improve the processing surface quality when the milling cutter rotates at high speed to process the keyway of the main and auxiliary shaft assembly, but needs to be equipped with an independent power driven device for water supply, which not only increases the equipment size, but also increases the power cost. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of main and auxiliary shaft assembly milling keyway processing devices to solve the following shortcomings in prior art, the existing keyway processing device still needs to cool the milling cutter through water spraying, remove the cutting chips and improve the processing surface quality when the milling cutter rotates at high speed to process the keyway of the main and auxiliary shaft assembly, but needs to be equipped with an independent power driven device for water supply, which not only increases the equipment size, but also increases the power cost.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] A kind of main and auxiliary shaft assembly milling keyway processing device, including table body, the upper surface of the table body is fixedly installed with installation cover, three-jaw chuck is fixedly installed in the inner wall of the installation cover, the upper surface of the installation cover is fixedly installed with electric telescopic handle, the drive shaft of the electric telescopic handle is fixedly installed with connecting block, the upper surface of the installation cover is horizontally provided with sliding mouth, the connecting block is slidably configured in sliding mouth, and bottom end is fixedly installed with lifting cylinder, the drive shaft of the lifting cylinder is fixedly installed with driving motor, the output shaft of the driving motor is fixedly installed with rotary rod, the bottom end of the rotary rod is fixedly installed with milling cutter;

[0007] Reciprocal thread is provided on the surface of the rotary rod, and the rotary rod is threadedly sleeved with sliding block, the lower surface of the sliding block is fixedly installed with piston rod, the lower surface of the shell of the driving motor is fixedly installed with vertical rod through connecting part, the upper surface of the vertical rod is provided with water tank, the piston rod is vertically slidably and sealingly inserted in the water tank, the bottom end of the vertical rod is fixedly connected with water outlet pipe, the surface of the connecting block is fixedly installed with placement plate, the upper surface of the placement plate is fixedly installed with water storage tank, the vertical rod is connected with the water storage tank through water inlet pipe, one-way valve is arranged in the water outlet pipe and the water inlet pipe.

[0008] Preferably, a plurality of rolling balls are rolled and embedded on the lower surface of the mounting plate, and the rolling balls are in rolling contact with the mounting cover.

[0009] Preferably, the connecting component includes a mounting ring fixedly sleeved on the vertical rod and a connecting rod fixedly installed on the outer ring wall of the mounting ring, one end of the connecting rod being fixedly connected to the housing surface of the drive motor.

[0010] Preferably, the one-way valve in the outlet pipe is directed from inside the water tank to the outside, and the one-way valve in the inlet pipe is directed from inside the water storage tank to inside the water tank.

[0011] Preferably, the surface of the platform is provided with a groove, a collection box is slidably inserted in the groove, the upper surface of the platform is provided with a water inlet, and a water guide block with a right-angled triangular cross section is fixedly installed on the upper surface of the platform, with the bottom end of the inclined surface of the water guide block facing the water inlet.

[0012] Preferably, a filter screen is fixedly installed inside the collection box, and the filter screen is used for solid-liquid separation.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] As the drive motor rotates the milling cutter, water in the water tank is automatically sprayed out from the outlet pipe and applied to the surface of the milling cutter. This achieves the effects of cooling the milling cutter, removing chips, and improving the surface quality of the machined material. Only one drive motor is needed to simultaneously control the rotation of the milling cutter and the water supply, reducing the size of the equipment and the cost of electricity. Attached Figure Description

[0015] Figure 1 This is a front perspective view of a main and auxiliary shaft assembly keyway milling device proposed in this utility model;

[0016] Figure 2 This is a top-view three-dimensional structural diagram of a main and auxiliary shaft assembly keyway milling device proposed in this utility model;

[0017] Figure 3 for Figure 1 Enlarged view of the structure at point A in the middle;

[0018] Figure 4 for Figure 2 Enlarged view of the structure at point B in the middle.

[0019] In the diagram: 1. Body, 2. Mounting cover, 3. Electric telescopic rod, 4. Connecting block, 5. Slide port, 6. Lifting cylinder, 7. Drive motor, 8. Rotating rod, 9. Milling cutter, 10. Filter screen, 11. Slider, 12. Piston rod, 13. Vertical rod, 14. Water outlet pipe, 15. Water storage tank, 16. Water inlet pipe, 17. Three-jaw chuck, 18. Mounting ring, 19. Collection box, 20. Water inlet, 21. Water guide block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0021] The terms such as "upper", "lower", "left", "right", "middle" and "one" cited in the utility model are only for the convenience of clear description, rather than for limiting the scope of the utility model, and the change or adjustment of the relative relationship is also regarded as the scope of the utility model without substantial change of the technical content.

[0022] Referring to Figures 1-4 A kind of main and auxiliary shaft assembly milling keyway processing device, including table body 1, the upper surface of table body 1 is fixedly installed with installation cover 2, three-jaw chuck 17 is fixedly installed in installation cover 2 inner wall, three-jaw chuck 17 is used to quickly fixed main and auxiliary shaft assembly, the upper surface of installation cover 2 is fixedly installed with electric telescopic handle 3, the drive shaft of electric telescopic handle 3 is fixedly installed with connecting block 4, the upper surface of installation cover 2 is horizontally provided with sliding mouth 5, connecting block 4 is slidably configured in sliding mouth 5, and bottom end is fixedly installed with lifting cylinder 6, the drive shaft of lifting cylinder 6 is fixedly installed with driving motor 7, the output shaft of driving motor 7 is fixedly installed with rotating rod 8, the bottom end of rotating rod 8 is fixedly installed with milling cutter 9, and the surface of installation cover 2 is symmetrically rotatably installed with machine door.

[0023] The surface of rotating rod 8 is provided with reciprocating thread, and the sliding block 11 is threadedly connected to the rotating rod 8, the lower surface of the sliding block 11 is fixedly installed with the piston rod 12, the lower surface of the shell of the driving motor 7 is fixedly installed with the vertical rod 13 through the connecting component, the connecting component includes the mounting ring 18 fixedly sleeved on the vertical rod 13 and the connecting rod fixedly installed on the outer ring wall of the mounting ring 18, one end of the connecting rod is fixedly connected with the surface of the shell of the driving motor 7, the upper surface of the vertical rod 13 is provided with a water tank, the piston rod 12 is vertically and sealingly inserted into the water tank, the bottom end of the water outlet pipe 14 is fixedly communicated with the bottom end of the water outlet pipe 14, the bottom end of the water outlet pipe 14 is towards the milling cutter 9, the surface of the connecting block 4 is fixedly installed with the mounting plate, the upper surface of the mounting plate is fixedly installed with the water storage tank 15, the vertical rod 13 is communicated with the water storage tank 15 through the water inlet pipe 16, the water outlet pipe 14 and the water inlet pipe 16 are both provided with a one-way valve, the conduction direction of the one-way valve in the water outlet pipe 14 is from the water tank to the outside, and the conduction direction of the one-way valve in the water inlet pipe 16 is from the water storage tank 15 to the water tank.

[0024] Firstly, the main and auxiliary shaft assembly is fixed by the three-jaw chuck 17, and the axis of the fixed main and auxiliary shaft assembly is located directly below the milling cutter 9, then the two machine doors are closed, the electric telescopic rod 3 is started, the connecting block 4 controls the lifting cylinder 6, the driving motor 7, the milling cutter 9 and the water storage tank 15 to move horizontally until the milling cutter 9 moves to the appropriate machining position, then the driving motor 7 is started to control the rotating rod 8 and the milling cutter 9 to rotate at high speed, and the lifting cylinder 6 is started to control the driving motor 7 to control the rotating rod 8 and the milling cutter 9 to move vertically, so that the bottom end of the milling cutter 9 abuts against the main and auxiliary shaft assembly and performs rotary slotting work.

[0025] In this process, the sliding block 11 sleeved on the rotating rod 8 moves vertically in the water tank with the piston rod 12, the space volume between the bottom end of the piston rod 12 and the bottom of the water tank changes from small to large and then from large to small, when the space volume becomes large, the pressure decreases, the water in the water storage tank 15 enters the water tank from the water inlet pipe 16, and when the space volume becomes small, the pressure increases, the water in the water tank is sprayed from the water outlet pipe 14 and acts on the surface of the milling cutter 9, so as to cool the milling cutter 9, remove the cutting chips and improve the machining surface quality.

[0026] The lower surface of the mounting plate is rollingly embedded with a plurality of rolling balls, the rolling balls are in rolling contact with the mounting cover 2, and the plurality of rolling balls can support the mounting plate and the water storage tank 15.

[0027] The surface of the table body 1 is provided with a sliding groove, the collecting box 19 is slidingly inserted into the sliding groove, the upper surface of the table body 1 is provided with a water inlet 20, the upper surface of the table body 1 is fixedly installed with a water guide block 21 with a right-angled triangle longitudinal section, and the inclined surface bottom end of the water guide block 21 faces the water inlet 20.

[0028] The water sprayed from the water outlet pipe 14 and the waste chips generated in the slotting process fall on the surface of the water guide block 21 under the action of gravity, slide down the inclined surface of the water guide block 21 and enter the collecting box 19 from the water inlet 20, so as to automatically collect the waste water and waste chips.

[0029] The collecting box 19 is fixedly installed with a filter screen 10, the filter screen 10 is used for solid-liquid separation, the filter screen 10 can block the waste chips, and the water can fall into the bottom of the collecting box 19 through the filter screen 10, so as to facilitate subsequent manual treatment of the waste chips and waste water.

[0030] In the utility model, when the driving motor 7 rotates with the milling cutter 9, the water in the water storage tank 15 is automatically sprayed from the water outlet pipe 14 and acts on the surface of the milling cutter 9, so as to cool the milling cutter 9, remove the cutting chips and improve the machining surface quality, only one driving motor 7 can achieve the effects of controlling the rotation of the milling cutter 9 and water supply, the equipment size is reduced, and the power cost is reduced.

[0031] In the utility model, unless another explicit stipulation and limitation, the terms "mount", "link", "connect", "fix" and so on terms should do the broad sense understanding.

[0032] The above described, only for the preferable specific implementation mode of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the technical field according to the utility model technical scheme and the utility model concept of the utility model disclosed in the technical range of the utility model, equivalent replacement or change, all should be covered in the protection scope of the utility model.

Claims

1. A milling device for keyway machining of a main and auxiliary shaft assembly, comprising a platform (1), characterized in that, A mounting cover (2) is fixedly installed on the upper surface of the platform (1). A three-jaw chuck (17) is fixedly installed on the inner wall of the mounting cover (2). An electric telescopic rod (3) is fixedly installed on the upper surface of the mounting cover (2). A connecting block (4) is fixedly installed on the drive shaft of the electric telescopic rod (3). A sliding opening (5) is horizontally opened on the upper surface of the mounting cover (2). The connecting block (4) is slidably arranged in the sliding opening (5) and a lifting cylinder (6) is fixedly installed at its bottom end. A drive motor (7) is fixedly installed on the drive shaft of the lifting cylinder (6). A rotating rod (8) is fixedly installed on the output shaft of the drive motor (7). A milling cutter (9) is fixedly installed at the bottom end of the rotating rod (8). The rotating rod (8) has a reciprocating thread on its surface, and a slider (11) is threaded onto the rotating rod (8). A piston rod (12) is fixedly installed on the lower surface of the slider (11). A vertical rod (13) is fixedly installed on the lower surface of the housing of the drive motor (7) through a connecting component. A water groove is opened on the upper surface of the vertical rod (13). The piston rod (12) is vertically slidably and sealed in the water groove. A water outlet pipe (14) is fixedly connected to the bottom end of the vertical rod (13). A mounting plate is fixedly installed on the surface of the connecting block (4). A water storage tank (15) is fixedly installed on the upper surface of the mounting plate. The vertical rod (13) is connected to the water storage tank (15) through a water inlet pipe (16). A one-way valve is provided in both the water outlet pipe (14) and the water inlet pipe (16).

2. The main and auxiliary shaft assembly keyway milling device according to claim 1, characterized in that, The lower surface of the mounting plate is provided with a plurality of rolling balls, which are in rolling contact with the mounting cover (2).

3. The main and auxiliary shaft assembly keyway milling device according to claim 1, characterized in that, The connecting component includes a mounting ring (18) fixedly sleeved on the vertical rod (13) and a connecting rod fixedly installed on the outer ring wall of the mounting ring (18). One end of the connecting rod is fixedly connected to the housing surface of the drive motor (7).

4. The main and auxiliary shaft assembly keyway milling device according to claim 1, characterized in that, The one-way valve in the outlet pipe (14) is open from inside the water tank to the outside, and the one-way valve in the inlet pipe (16) is open from inside the water storage tank (15) to inside the water tank.

5. The main and auxiliary shaft assembly keyway milling device according to claim 1, characterized in that, The surface of the platform (1) is provided with a groove, and a collection box (19) is slidably inserted in the groove. The upper surface of the platform (1) is provided with a water inlet (20). A water guide block (21) with a right-angled triangle longitudinal section is fixedly installed on the upper surface of the platform (1). The bottom end of the inclined surface of the water guide block (21) faces the water inlet (20).

6. The main and auxiliary shaft assembly keyway milling device according to claim 5, characterized in that, A filter screen (10) is fixedly installed inside the collection box (19), and the filter screen (10) is used for solid-liquid separation.