Machine collision protection device for main shaft of machining center
By designing a protective cover that is easy to install and remove, and a collision sensing system, the problems of cumbersome installation and removal and insufficient drill bit protection in existing devices have been solved, thereby improving work efficiency and drill bit life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-03-27
AI Technical Summary
Existing spindle protection devices for machining centers are cumbersome to install and remove and are not convenient for protecting drill bits, resulting in low work efficiency and shortened drill bit life.
A spindle impact protection device was designed, comprising a protective cover, a rotating ring, a snap-fit rod, and an impact intensity sensor. The device covers the drill bit through a convenient assembly and disassembly structure and a protective cover, and stops the machining center from operation by combining impact sensing.
The protective cover allows for easy installation and removal, improving work efficiency. It also extends the service life of the drill bit by covering it, preventing damage from external forces.
Smart Images

Figure CN224043271U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of machining center, especially a machining center spindle rammer protection device. BACKGROUND
[0002] Through searching Chinese patent, the announcement number is: CN219436781U, a spindle protection device belongs to motor spindle technical field, including motor, the motor output is provided with spindle, the motor front end is fixedly connected with four groups of protection device, the protection device includes connecting rod, the connecting rod one end is fixedly connected with motor front end. The utility model has the advantages that four spindle protection devices can be fixed on the motor front end cover plate through fixing bolts, so that they are located in the four directions of the spindle, ensuring that the pressure measuring head of the protection device is located on the outer surface of the spindle.
[0003] The existing protection device is inconvenient to assemble and disassemble, and generally the protection device and the machining center are fixed and installed through multiple bolts, so tools are needed to assemble and disassemble it, the assembly and disassembly process is relatively cumbersome, increasing the workload and reducing the assembly and disassembly efficiency, which is inconvenient to use. Utility model content
[0004] The utility model discloses a machining center spindle rammer protection device, which has the advantages of convenient assembly and disassembly and protection of the drill bit.
[0005] The utility model discloses a machining center main shaft ram protection device, including the machining center, the bottom installation of machining center has the main shaft, the bottom installation of main shaft has the drill bit, the bottom of machining center is connected with the fixed base, and the main shaft is located in the inside of fixed base, the surface sliding sleeve of fixed base has the protection cover, the surface rotation sleeve of fixed base has the first rotation ring, the inner wall of first rotation ring is connected with the triangular block, the surface sliding connection of triangular block has the slide, and the spring is established between the one end of slide and the inner wall of fixed base, the surface of slide is connected with the clamping rod, the inner wall of protection cover has seted up the clamping groove, and the one end clamping groove is connected with the clamping rod.
[0006] Adopt above-mentioned technical scheme, through rotating the first rotation ring and make the triangular block rotate, the triangular block rotates and makes the slide drive the clamping rod to move, and the clamping rod moves and makes the clamping rod and the clamping groove separate, and the mode of taking off the protection cover can reach the purpose of convenient installation and removal, reduces the work load, and improves work efficiency.
[0007] The utility model further sets up: the inner wall sliding sleeve of protection cover has telescopic cover, the surface rotation sleeve of protection cover has the second rotation ring, the inner wall fixed sleeve of second rotation ring has the gear ring, and the inner wall rotation connection of gear ring and protection cover, the inner wall of gear ring is engaged with the gear, the axle center of gear is fixed and is connected with the screw rod, and the inner wall rotation sleeve of screw rod and protection cover, and the inner wall screw connection of screw rod and telescopic cover.
[0008] Adopt above-mentioned technical scheme, when not using, rotating the second rotation ring and make the gear ring rotate, the gear ring rotates and drives the gear to rotate, the gear rotates and drives the screw rod to rotate, and the screw rod rotates and makes telescopic cover move downwards, and the mode of protection cover of telescopic cover covers the drill bit can reach the purpose of the drill bit protection, guarantees the safety of drill bit, and improves the service life of drill bit.
[0009] The utility model further sets up: the surface of telescopic cover is connected with the sliding block, the surface sliding connection of sliding block has the sliding slot, and the inner wall of protection cover is seted up sliding slot.
[0010] Adopt above-mentioned technical scheme, through setting up sliding block and sliding slot, prevent telescopic cover from slipping off, and improve stability.
[0011] The utility model further sets up: the surface of first rotation ring and second rotation ring is seted up antiskid line.
[0012] Adopt above-mentioned technical scheme, through setting up antiskid line, prevent hand slip, and convenient operation.
[0013] The utility model further sets up: the one end of clamping rod is wedge-shaped.
[0014] The end of the clamping rod is wedge-shaped, facilitating installation of the protective cover.
[0015] The inner wall of the protective cover is fixedly sleeved with a rubber pad.
[0016] The rubber pad is arranged to protect the main shaft and improve the protection effect.
[0017] The inner wall of the protective cover is fixedly sleeved with a rubber pad.
[0018] The impact intensity sensor is arranged to stop the machining center from running when impact occurs and to stop the loss in time.
[0019] The end of the slide rod is arc-shaped.
[0020] The end of the slide rod is arc-shaped, preventing the slide rod from being stuck and improving the stability.
[0021] The utility model has the advantages of the following beneficial effects:
[0022] 1. The utility model discloses a mode that the triangular block is rotated by rotating the first rotary ring, the triangular block is rotated and drives the slide rod to drive the clamping rod to move, the clamping rod moves and makes the clamping rod and the clamping groove disengage from the clamping, and the protective cover is removed, which can achieve the purpose of convenient installation and removal, reduces the work load and improves the work efficiency.
[0023] 2. The utility model discloses a mode that when not being used, the gear ring is rotated by rotating the second rotary ring, the gear ring is rotated and drives the gear to rotate, the gear rotates and drives the screw rod to rotate, the screw rod rotates and makes the telescopic cover move downwards, and the telescopic cover covers the drill bit and protects the mode, which can achieve the purpose of protecting the drill bit, ensures the safety of the drill bit and improves the service life of the drill bit. DRAWINGS
[0024] Figure 1 It is the structure perspective drawing of the utility model;
[0025] Figure 2 It is the structure section view of the utility model;
[0026] Figure 3 It is the local structure bottom view section view of the utility model;
[0027] Figure 4 It is the local structure top view section view of the utility model;
[0028] Figure 5 It is the structure of the utility model Figure 2 A place structure enlarged view in the utility model;
[0029] Figure 6 is the utility model Figure 2 structure amplification view of B place in the middle.
[0030] Reference signs: 1, machining center;2, main shaft;3, fixed seat;4, protective cover;5, first rotating ring;6, triangular block;7, slide bar;8, spring;9, clamping rod;10, clamping groove;11, telescopic cover;12, second rotating ring;13, gear ring;14, gear;15, screw;16, sliding block;17, sliding groove;18, anti-skid pattern;19, rubber pad;20, collision intensity sensor;21, drill bit. DETAILED DESCRIPTION
[0031] The utility model will be further explained in detail below in combination with the drawings.
[0032] Example 1:
[0033] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5 , a machining center main shaft impact machine protection device, including machining center 1, the bottom of machining center 1 is installed with main shaft 2, the bottom of main shaft 2 is installed with drill bit 21, the bottom of machining center 1 is bolted with fixed seat 3, and main shaft 2 is located in the inside of fixed seat 3, the surface of fixed seat 3 is slidably connected with protective cover 4, the surface of fixed seat 3 is rotatably connected with first rotating ring 5, the inner wall of first rotating ring 5 is bolted with triangular block 6, the surface of triangular block 6 is slidably connected with slide bar 7, the spring 8 is arranged between the inner wall of fixed seat 3 and one end of slide bar 7, the surface of slide bar 7 is bolted with clamping rod 9, the inner wall of protective cover 4 is provided with clamping groove 10, and one end of clamping groove 10 is clamped with clamping rod 9, by rotating first rotating ring 5, triangular block 6 is rotated, triangular block 6 drives slide bar 7 to drive clamping rod 9 to move, clamping rod 9 moves to make clamping rod 9 and clamping groove 10 disengage, the mode of taking down protective cover 4 can achieve the purpose of being convenient to assemble and disassemble, reduces the work load, and improves the work efficiency.
[0034] Reference Figure 5 , one end of clamping rod 9 is wedge-shaped, by setting one end of clamping rod 9 to be wedge-shaped, it is convenient to install protective cover 4.
[0035] Reference Figure 2 and Figure 4 , the inner wall of protective cover 4 is fixedly connected with rubber pad 19, by setting rubber pad 19, main shaft 2 is protected, and the protection effect is improved.
[0036] Reference Figure 2 and Figure 4The inner wall of the protective cover 4 is bolted with a collision intensity sensor 20. By setting the collision intensity sensor 20, the machining center 1 will stop running when an impact occurs, thus preventing damage in time.
[0037] refer to Figure 3 and Figure 5 One end of the slide rod 7 is arc-shaped. By setting one end of the slide rod 7 to be arc-shaped, the slide rod 7 is prevented from getting stuck, thus improving stability.
[0038] Example 2:
[0039] refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 The inner wall of the protective cover 4 is slidably fitted with a telescopic cover 11. The surface of the protective cover 4 is rotatably fitted with a second rotating ring 12. The inner wall of the second rotating ring 12 is fixedly fitted with a toothed ring 13, and the toothed ring 13 is rotatably connected to the inner wall of the protective cover 4. The inner wall of the toothed ring 13 is meshed with a gear 14. The shaft of the gear 14 is fixedly fitted with a screw 15, and the screw 15 is rotatably fitted to the inner wall of the protective cover 4. The screw 15 is threadedly connected to the inner wall of the telescopic cover 11. When not in use, rotating the second rotating ring 12 causes the toothed ring 13 to rotate. The rotation of the toothed ring 13 drives the gear 14 to rotate. The rotation of the gear 14 drives the screw 15 to rotate. The rotation of the screw 15 causes the telescopic cover 11 to move downward, so that the telescopic cover 11 covers and protects the drill bit 21. This achieves the purpose of protecting the drill bit 21, ensuring the safety of the drill bit 21, and improving the service life of the drill bit 21.
[0040] refer to Figure 6 A slider 16 is bolted to the surface of the telescopic cover 11, and a groove 17 is slidably connected to the surface of the slider 16. The groove 17 is opened on the inner wall of the protective cover 4. By setting the slider 16 and the groove 17, the telescopic cover 11 is prevented from slipping and the stability is improved.
[0041] refer to Figure 3 and Figure 4 The surfaces of the first rotating ring 5 and the second rotating ring 12 are provided with anti-slip textures 18. By setting the anti-slip textures 18, the hands are prevented from slipping and the operation is made easier.
[0042] Brief description of use: the spindle 2 is protected by the protective cover 4, when impact occurs, the protective cover 4 is first collided, the protective cover 4 is impacted to trigger the collision intensity sensor 20, the collision intensity sensor 20 transmits the collision signal to the control center of the machining center 1, the machining center 1 is stopped running, so as to achieve the purpose of protecting the spindle 2; rotate the first rotating ring 5, the first rotating ring 5 rotates to drive the triangular block 6 to rotate, the triangular block 6 rotates to drive the sliding rod 7 to move, the sliding rod 7 moves to drive the clamping rod 9 to move, the clamping rod 9 moves to make the clamping rod 9 and the clamping groove 10 disengage, the protective cover 4 is taken off, when installing, the protective cover 4 is installed on the fixed seat 3, the sliding rod 7 drives the clamping rod 9 and the clamping groove 10 to be clamped under the action of the spring 8, the protective cover 4 is fixed, so as to achieve the purpose of convenient installation and disassembly; when not in use, rotate the second rotating ring 12, the second rotating ring 12 drives the gear ring 13 to rotate, the gear ring 13 rotates to drive the gear 14 to rotate, the gear 14 rotates to drive the screw 15 to rotate, the screw 15 rotates to make the telescopic cover 11 move downward, the telescopic cover 11 moves downward to cover the drill bit 21 to protect, when in use, the second rotating ring 12 is reversely rotated, the telescopic cover 11 moves upward, the telescopic cover 11 moves upward to expose the drill bit 21, so as to achieve the purpose of protecting the drill bit 21.
[0043] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model. Those skilled in the art can make modifications without creative contribution according to the needs after reading the specification, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.
Claims
1. A machining center spindle ram protector device comprising a machining center (1), characterized in that, The bottom of the machining center (1) is provided with a main shaft (2), the bottom of the main shaft (2) is provided with a drill bit (21), the bottom of the machining center (1) is provided with a fixed seat (3), and the main shaft (2) is located in the fixed seat (3), the surface of the fixed seat (3) is slidably sleeved with a protective cover (4), the surface of the fixed seat (3) is rotatably sleeved with a first rotating ring (5), the inner wall of the first rotating ring (5) is provided with a triangular block (6), the surface of the triangular block (6) is slidably connected with a sliding rod (7), the spring (8) is arranged between one end of the sliding rod (7) and the inner wall of the fixed seat (3), the surface of the sliding rod (7) is provided with a clamping rod (9), the inner wall of the protective cover (4) is provided with a clamping groove (10), and one end of the clamping groove (10) is clamped with the clamping rod (9).
2. A spindle knock protector for a machining center according to claim 1, characterized in that, The inner wall of the protective cover (4) is slidably sleeved with a telescopic cover (11), the surface of the protective cover (4) is rotatably sleeved with a second rotating ring (12), the inner wall of the second rotating ring (12) is fixedly sleeved with a gear ring (13), and the gear ring (13) is rotatably connected with the inner wall of the protective cover (4), the inner wall of the gear ring (13) is engaged with a gear (14), the shaft center of the gear (14) is fixedly sleeved with a screw rod (15), and the screw rod (15) is rotatably sleeved with the inner wall of the protective cover (4), and the screw rod (15) is threadedly connected with the inner wall of the telescopic cover (11).
3. A spindle knock protector for a machining center according to claim 2, characterized in that, The surface of the telescopic cover (11) is provided with a sliding block (16), the surface of the sliding block (16) is slidably connected with a sliding groove (17), and the sliding groove (17) is arranged in the inner wall of the protective cover (4).
4. A spindle knock protector for a machining center according to claim 2, characterized in that, The surface of the first rotating ring (5) and the second rotating ring (12) is provided with an anti-skid pattern (18).
5. A spindle knock protector for a machining center according to claim 1, characterized in that, One end of the clamping rod (9) is wedge-shaped.
6. A spindle knock protector for a machining center according to claim 1, characterized in that, The inner wall of the protective cover (4) is fixedly sleeved with a rubber pad (19).
7. A spindle knock protector for a machining center according to claim 1, characterized in that, The inner wall of the protective cover (4) is provided with a collision intensity sensor (20).
8. A spindle knock protector for a machining center according to claim 1, characterized in that, One end of the sliding rod (7) is arc-shaped.
Citation Information
Patent Citations
Main shaft protection device
CN219436781U