Anti-drift spindle positioning device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FREEWON CHINA CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-21
Smart Images

Figure CN224526531U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of processing equipment technology, specifically to a spindle positioning device for preventing offset. Background Technology
[0002] Spindle positioning devices are key components in machining, automated assembly, and precision testing. Their core function is to ensure that the spindle maintains high-precision positioning during high-speed rotation, avoiding offset problems caused by vibration or external force interference. The anti-offset design is directly related to machining accuracy, equipment life and production efficiency.
[0003] In the machining process, when the spindle is in working condition, its core task is to perform stable and continuous rotation. Most existing spindles are only positioned and fixed by bearings. However, due to the wear of the bearings during long-term use, the spindle is prone to some deviation during operation, which in turn causes the workpiece to deviate. During workpiece processing, this can easily lead to a decrease in the accuracy of workpiece processing, thereby affecting the quality of processing. Utility Model Content
[0004] The purpose of this invention is to provide a spindle positioning device to prevent offset, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A spindle positioning device for preventing offset includes: a first mounting shell, a second mounting shell mounted on the top surface of the first mounting shell, a spindle rotatably mounted on the inner walls of the first and second mounting shells via bearing seats, a clamping assembly mounted on one end of the spindle, a power assembly mounted on the top surface of the second mounting shell, and the power assembly being drively connected to the spindle; and further includes:
[0007] The limiting mechanism is located inside the mounting housing. The limiting mechanism includes a fixed sleeve that is fixedly installed on the outer wall of the spindle. A limiting wheel and a T-block are provided on the outside of the fixed sleeve. The limiting mechanism is used to limit the spindle.
[0008] The anti-deviation mechanism is located inside the mounting housing. The anti-deviation mechanism includes a fixed block that is fixedly installed on the side of the T-shaped block. Ball bearings are rolled on the side of the fixed block. The anti-deviation mechanism is used to prevent the spindle from deviating.
[0009] Preferably, a fixing plate is fixedly installed on the inner wall of the mounting shell, a through hole is opened on the side of the fixing plate, a round tube is fixedly installed on the side of the fixing plate, and an adjusting disc is rotatably installed on the outer wall of the round tube through a bearing seat.
[0010] Preferably, multiple connecting sleeves are fixedly installed on the outer wall of the adjusting plate, two sets of threaded holes are opened on the side of the fixing plate, the connecting sleeves are fixed to the threaded holes by bolts, and three arc-shaped grooves are opened through the side of the adjusting plate.
[0011] Preferably, the other side of the fixing plate has three T-shaped grooves, and three T-shaped blocks and three limiting wheels are provided. The outer walls of the three T-shaped blocks are slidably connected to the inner walls of the three T-shaped grooves respectively.
[0012] Preferably, the inner walls of the three T-shaped grooves are respectively provided with sliding grooves, and the sides of the three T-shaped blocks are respectively fixedly installed with adjusting rods, and the outer walls of the three adjusting rods are respectively slidably connected to the inner walls of the three sliding grooves and the inner walls of the three arc-shaped grooves.
[0013] Preferably, hinge blocks are fixedly installed on the sides of the three T-shaped blocks, and the inner walls of the three hinge blocks are rotatably connected to the inner walls of the three limit wheels through rotating shafts. The outer wall of the fixed sleeve is provided with a groove, and the outer walls of the three limit wheels are tumbledly connected to the inner wall of the groove.
[0014] Preferably, multiple fixing blocks and balls are provided, with the multiple fixing blocks located on both sides of the fixing sleeve.
[0015] Preferably, anti-deviation grooves are provided on both sides of the fixing sleeve, and notches are provided on the inner walls of the anti-deviation grooves. The ball bearings are in rolling connection with the inner walls of the anti-deviation grooves and the inner walls of the notches, and the side of the fixing block is in sliding connection with the side of the fixing sleeve.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] This utility model involves rotating an adjusting disc and a connecting sleeve by a certain angle and fixing them with bolts. The arc groove on the adjusting disc drives the adjusting rod and the T-shaped block to move. The T-shaped block drives the hinge block and the limiting wheel to move. Multiple limiting wheels contact the inner wall of the groove on the fixed sleeve and limit it, thereby limiting the spindle. When the bearing wears, the limiting wheel further limits the spindle, making it less likely for the spindle to deviate. This ensures the accuracy and quality of the machining process when processing the workpiece.
[0018] When the T-shaped blocks move closer together, they drive the fixed block and the ball to move. The fixed block limits and prevents deviation on both sides of the fixed sleeve, while the ball rolls on the inner wall of the anti-deviation groove and further limits and prevents deviation of the fixed sleeve, thereby further limiting and preventing deviation of the spindle, ensuring that the spindle is not prone to deviation and improving the accuracy of the spindle in machining the workpiece. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0020] Figure 2 This is a three-dimensional cross-sectional view of the present invention;
[0021] Figure 3 This is a three-dimensional structural diagram of the main shaft of this utility model;
[0022] Figure 4 This is an exploded three-dimensional view of the T-shaped block of this utility model;
[0023] Figure 5 This is a three-dimensional structural diagram of the adjustment disc of this utility model.
[0024] In the picture:
[0025] 1. Mounting housing one; 101. Mounting housing two; 102. Spindle; 103. Clamping assembly; 104. Power assembly;
[0026] 2. Limiting mechanism; 201. Fixing plate; 202. Through hole; 203. Round tube; 204. Adjusting plate; 205. Arc groove; 206. Connecting sleeve; 207. Threaded hole; 208. T-slot; 209. Slide groove; 210. T-block; 211. Adjusting rod; 212. Hinge block; 213. Limiting wheel; 214. Fixing sleeve; 215. Groove body; 3. Anti-deviation mechanism; 301. Anti-deviation groove; 302. Notch; 303. Fixing block; 304. Ball bearing. Detailed Implementation
[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0028] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.
[0029] like Figures 1-5 As shown, this application provides a spindle positioning device to prevent offset, including: a mounting shell 1, a mounting shell 2 101 mounted on the top surface of the mounting shell 1, a spindle 102 rotatably mounted on the inner walls of the mounting shell 1 and the mounting shell 2 101 via bearing seats, a clamping assembly 103 mounted on one end of the spindle 102, a power assembly 104 mounted on the top surface of the mounting shell 2 101, and the power assembly 104 being drively connected to the spindle 102, and further including:
[0030] Limiting mechanism 2 is located inside the mounting shell 1. The limiting mechanism 2 includes a fixed sleeve 214 fixedly installed on the outer wall of the spindle 102. A limiting wheel 213 and a T-block 210 are provided on the outside of the fixed sleeve 214. The limiting mechanism 2 is used to limit the spindle 102.
[0031] Specifically, such as Figures 1-5As shown, a fixing plate 201 is fixedly installed on the inner wall of the mounting shell 1. A through hole 202 is opened on the side of the fixing plate 201. A round tube 203 is fixedly installed on the side of the fixing plate 201. An adjusting plate 204 is rotatably installed on the outer wall of the round tube 203 through a bearing seat.
[0032] In this embodiment: An adjusting disc 204 is rotatably mounted on the outer wall of the circular tube 203 via a bearing seat, so that the adjusting disc 204 can rotate.
[0033] Specifically, such as Figures 1-5 As shown, multiple connecting sleeves 206 are fixedly installed on the outer wall of the adjusting plate 204. Two sets of threaded holes 207 are opened on the side of the fixing plate 201. The connecting sleeves 206 are fixed to the threaded holes 207 by bolts. Three arc-shaped grooves 205 are opened through the side of the adjusting plate 204.
[0034] In this embodiment: the connecting sleeve 206 and the threaded hole 207 allow the adjusting disc 204 to be rotated and then fixed.
[0035] Specifically, such as Figures 1-5 As shown, three T-shaped grooves 208 are provided on the other side of the fixing plate 201. Three T-shaped blocks 210 and three limiting wheels 213 are provided. The outer walls of the three T-shaped blocks 210 are slidably connected to the inner walls of the three T-shaped grooves 208 respectively.
[0036] In this embodiment, the T-shaped block 210 is limited by the T-shaped groove 208, so that the T-shaped block 210 moves more stably.
[0037] Specifically, such as Figures 1-5 As shown, the inner walls of the three T-shaped grooves 208 are respectively provided with sliding grooves 209, and the sides of the three T-shaped blocks 210 are respectively fixedly installed with adjusting rods 211. The outer walls of the three adjusting rods 211 are slidably connected to the inner walls of the three sliding grooves 209 and the inner walls of the three arc-shaped grooves 205.
[0038] In this embodiment, the arc-shaped groove 205 can drive the adjusting rod 211 and the T-shaped block 210 to move.
[0039] Specifically, such as Figures 1-5 As shown, hinge blocks 212 are fixedly installed on the sides of the three T-shaped blocks 210 respectively. The inner walls of the three hinge blocks 212 are rotatably connected to the inner walls of the three limit wheels 213 through rotating shafts. The outer wall of the fixed sleeve 214 is provided with a groove 215, and the outer walls of the three limit wheels 213 are tumbledly connected to the inner walls of the groove 215.
[0040] In this embodiment: the fixed sleeve 214 is limited by the limiting wheel 213, thereby further limiting the spindle 102.
[0041] Anti-deviation mechanism 3 is located inside the mounting housing 1. Anti-deviation mechanism 3 includes a fixing block 303 fixedly installed on the side of T-shaped block 210. Ball bearings 304 are rolled on the side of fixing block 303. Anti-deviation mechanism 3 is used to prevent spindle 102 from deviating.
[0042] Specifically, such as Figures 1-5 As shown, multiple fixing blocks 303 and ball bearings 304 are provided, with multiple fixing blocks 303 located on both sides of the fixing sleeve 214 respectively.
[0043] In this embodiment, the fixing block 303 limits the movement of both sides of the fixing sleeve 214.
[0044] Specifically, such as Figures 1-5 As shown, anti-deviation grooves 301 are respectively opened on both sides of the fixed sleeve 214, and notches 302 are opened on the inner wall of the anti-deviation grooves 301. The ball 304 is in rolling connection with the inner wall of the anti-deviation grooves 301 and the inner wall of the notches 302. The side of the fixed block 303 is in sliding connection with the side of the fixed sleeve 214.
[0045] In this embodiment: the ball bearing 304 and the anti-deviation groove 301 are provided so that the ball bearing 304 further limits and prevents deviation of the fixed sleeve 214.
[0046] Specifically, this solution involves rotating the adjusting disc 204 and connecting sleeve 206 by a certain angle and fixing them with bolts. The arc-shaped groove 205 on the adjusting disc 204 drives the adjusting rod 211 and T-block 210 to move. The T-block 210 then drives the hinge block 212 and limiting wheels 213 to move. Multiple limiting wheels 213 contact the inner wall of the groove 215 on the fixed sleeve 214 and limit its movement, thereby limiting the spindle 102. When the bearing wears, the limiting wheels 213 further limit the spindle 102. This design prevents the spindle 102 from shifting, ensuring the accuracy and quality of workpiece machining. When the T-blocks 210 approach each other, they drive the fixed block 303 and the ball bearings 304 to move. The fixed block 303 limits and prevents deviation on both sides of the fixed sleeve 214, while the ball bearings 304 roll on the inner wall of the anti-deviation groove 301 and further limit and prevent deviation on the fixed sleeve 214. This further limits and prevents deviation of the spindle 102, ensuring that the spindle 102 is not prone to shifting and improving the accuracy of workpiece machining by the spindle 102.
[0047] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary; within the framework of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this invention as described above, which are not provided in the details for the sake of brevity.
[0048] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A spindle positioning device for preventing offset, comprising: Mounting housing one (1), mounting housing two (101) is mounted on the top surface of mounting housing one (1), a main shaft (102) is rotatably mounted on the inner walls of mounting housing one (1) and mounting housing two (101) through bearing seats, a clamping assembly (103) is mounted on one end of the main shaft (102), a power assembly (104) is mounted on the top surface of mounting housing two (101), and the power assembly (104) is connected to the main shaft (102) for transmission. The feature is that it further includes: The limiting mechanism (2) is disposed inside the mounting shell (1). The limiting mechanism (2) includes a fixed sleeve (214) fixedly installed on the outer wall of the main shaft (102). A limiting wheel (213) and a T-block (210) are provided on the outer side of the fixed sleeve (214). The limiting mechanism (2) is used to limit the main shaft (102). Anti-deviation mechanism (3) is provided inside the mounting shell (1). The anti-deviation mechanism (3) includes a fixing block (303) fixedly installed on the side of the T-shaped block (210). A ball bearing (304) is rolled on the side of the fixing block (303). The anti-deviation mechanism (3) is used to prevent the spindle (102) from deviating.
2. The anti-offset spindle positioning device according to claim 1, characterized in that, A fixing plate (201) is fixedly installed on the inner wall of the mounting shell (1). A through hole (202) is opened on the side of the fixing plate (201). A round tube (203) is fixedly installed on the side of the fixing plate (201). An adjusting plate (204) is rotatably installed on the outer wall of the round tube (203) through a bearing seat.
3. The anti-offset spindle positioning device according to claim 2, characterized in that, Multiple connecting sleeves (206) are fixedly installed on the outer wall of the adjusting plate (204). Two sets of threaded holes (207) are opened on the side of the fixing plate (201). The connecting sleeves (206) are fixed to the threaded holes (207) by bolts. Three arc-shaped grooves (205) are opened through the side of the adjusting plate (204).
4. The anti-offset spindle positioning device according to claim 3, characterized in that, The fixing plate (201) has three T-shaped grooves (208) on its other side. There are three T-shaped blocks (210) and three limiting wheels (213). The outer walls of the three T-shaped blocks (210) are slidably connected to the inner walls of the three T-shaped grooves (208).
5. The anti-offset spindle positioning device according to claim 4, characterized in that, The inner walls of the three T-shaped grooves (208) are respectively provided with sliding grooves (209), and the sides of the three T-shaped blocks (210) are respectively fixedly installed with adjusting rods (211). The outer walls of the three adjusting rods (211) are slidably connected to the inner walls of the three sliding grooves (209) and the inner walls of the three arc-shaped grooves (205).
6. The anti-offset spindle positioning device according to claim 5, characterized in that, The three T-shaped blocks (210) are respectively fixedly installed with hinge blocks (212) on their sides. The inner walls of the three hinge blocks (212) are rotatably connected to the inner walls of the three limiting wheels (213) through rotating shafts. The outer wall of the fixed sleeve (214) is provided with a groove (215). The outer walls of the three limiting wheels (213) are tumbledly connected to the inner walls of the groove (215).
7. The anti-offset spindle positioning device according to claim 1, characterized in that, Multiple fixing blocks (303) and ball bearings (304) are provided, and the multiple fixing blocks (303) are respectively located on both sides of the fixing sleeve (214).
8. The anti-offset spindle positioning device according to claim 7, characterized in that, The fixed sleeve (214) has anti-deviation grooves (301) on both sides, and a notch (302) is provided on the inner wall of the anti-deviation groove (301). The ball (304) is in rolling connection with the inner wall of the anti-deviation groove (301) and the inner wall of the notch (302). The side of the fixed block (303) is in sliding connection with the side of the fixed sleeve (214).