Mandrel structure of spring millstone
The core shaft structure with adjustable fixing rings and tubes addresses the inflexibility of existing spring grinding discs by allowing customizable height adjustments, improving adaptability for diverse grinding applications.
Patent Information
- Application Number
- CN202420823235.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-19
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-19
AI Technical Summary
The existing spring grinding discs lack adjustable height mechanisms, limiting their versatility and adaptability to different grinding needs.
A core shaft structure with adjustable fixing rings and tubes, utilizing fixing screws and locking nuts to adjust the height of the spring grinding disc, allowing for customizable height adjustments through interchangeable adjusting tubes.
Enables precise height adjustments of the spring grinding disc, enhancing its adaptability to various grinding tasks by accommodating different spring sizes and shapes.
Smart Images
Figure CN222200131U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of spring grinding discs, in particular to a core shaft structure of a spring grinding disc. Background Art
[0002] The spring grinding disc is a fixed part used for spring grinding. The existing spring grinding disc comprises a circular grinding disc body, and a plurality of grinding sleeve inner holes for springs to be placed are arranged on the circular grinding disc body.
[0003] In the prior art, there is a grinding disc and grinding sleeve combination device for fixing a spring, as proposed in patent application number "CN201721114553.5", which includes: a grinding disc, which includes an inner disc, an outer disc, a first pin hole, a second pin hole, a fixing ring, a first annular hole, a second annular hole, and a third annular hole, and the fixing ring is on the inner side of the third annular hole.
[0004] The center of the existing spring grinding disc is provided with an opening, which is directly connected to the external fixing component as the core shaft. However, the length of the fixing component in the center of the existing spring grinding disc cannot be adjusted in the vertical direction, and the height of the spring grinding disc cannot be adjusted accordingly. Utility Model Content
[0005] The utility model aims to provide a mandrel structure of a spring grinding disc to solve the problems raised in the above background technology.
[0006] The purpose of the utility model can be achieved through the following technical solutions:
[0007] A core shaft structure of a spring grinding disc comprises a central shaft, on which a spring grinding disc is mounted, a first fixing ring is fixedly connected to the bottom of the central shaft, a second fixing ring is arranged below the first fixing ring, a plurality of adjusting tubes are arranged between the first fixing ring and the second fixing ring, and positioning rings are fixedly connected to both ends of the adjusting tubes.
[0008] The bottom of the first fixing ring and the top of the second fixing ring are both provided with annular positioning grooves and fixing holes in an annular array, the positioning ring and the annular positioning groove are adapted to each other, a fixing screw is provided at the bottom of the second fixing ring, a locking nut is provided above the first fixing ring, the top of the fixing screw passes through the second fixing ring, the adjusting tube and the first fixing ring in sequence and is threadedly connected to the locking nut, so as to fix the first fixing ring and the second fixing ring together.
[0009] Preferably, a load-bearing ring is fixedly connected to the outer surface of the central shaft and located below the spring grinding disc, and a first elastic gasket is fixedly connected to the top of the load-bearing ring.
[0010] Preferably, the bearing ring is provided with clamping holes in an annular array, and the bottom of the spring grinding disc is fixedly connected with clamping shafts in an annular array, and the clamping shafts and the clamping holes are matched.
[0011] Preferably, a clamping ring is sleeved on the outer surface of the central shaft and located above the spring grinding disc, a second elastic gasket is fixedly connected to the bottom of the clamping ring, and positioning slots are opened on both sides of the clamping ring.
[0012] Preferably, a cavity is opened in the central axis, a reset spring is fixedly connected in the cavity, both ends of the reset spring are fixedly connected with clamping plates, the top of the clamping plate is inclined, and the clamping plate and the positioning bayonet are adapted to each other.
[0013] Preferably, the top of the clamping ring is fixedly connected with a positioning connecting plate, the top of the central axis is provided with a positioning pressing groove used in conjunction with the positioning connecting plate, and a fixing bolt is provided at the center of the top of the positioning connecting plate.
[0014] Beneficial effects of the utility model:
[0015] The utility model arranges an adjusting tube between the first fixing ring and the second fixing ring, and uses a fixing screw rod in conjunction with a locking nut to fix the first fixing ring, the second fixing ring and the adjusting tube together. At the same time, by replacing adjusting tubes of different heights, the height of the second fixing ring can be adjusted, and the height of the central axis and the spring grinding disc installed on the central axis can be further adjusted. The height of the spring grinding disc can be adjusted according to actual needs. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 This utility model Figure 1 The structural diagram of the bottom of the middle spring grinding disc;
[0019] Figure 3 This utility model Figure 2 A schematic diagram of the connection between the first fixing ring and the second fixing ring;
[0020] Figure 4 This utility model Figure 1 Schematic diagram of the structure of the middle clamping ring;
[0021] Figure 5 This utility model Figure 4 A schematic diagram of the structure of the bottom of the first elastic washer;
[0022] Figure 6 This utility model Figure 1 Cross-sectional view of the middle clamping ring.
[0023] The reference numerals in the figures are as follows:
[0024] 1. Center shaft, 2. Spring grinding disc, 3. First fixing ring, 4. Second fixing ring, 5. Adjusting tube, 6. Positioning ring, 7. Annular positioning groove, 8. Fixing hole, 9. Fixing screw, 10. Locking nut, 11. Loading ring, 12. First elastic washer, 13. Clamping hole, 14. Clamping shaft, 15. Pressure ring, 16. Second elastic washer, 17. Positioning bayonet, 18. Cavity, 19. Reset spring, 20. Clamping plate, 21. Positioning connecting plate, 22. Positioning pressure groove, 23. Fixing bolt. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] A core shaft structure of a spring grinding disc comprises a central shaft 1, on which a spring grinding disc 2 is mounted, a first fixing ring 3 is fixedly connected to the bottom of the central shaft 1, a second fixing ring 4 is arranged below the first fixing ring 3, a plurality of adjusting tubes 5 are arranged between the first fixing ring 3 and the second fixing ring 4, and positioning rings 6 are fixedly connected to both ends of the adjusting tubes 5.
[0027] The bottom of the first fixing ring 3 and the top of the second fixing ring 4 are both provided with annular positioning grooves 7 and fixing holes 8 in an annular array, the positioning ring 6 and the annular positioning groove 7 are adapted to each other, a fixing screw 9 is provided at the bottom of the second fixing ring 4, and a locking nut 10 is provided above the first fixing ring 3. The top of the fixing screw 9 passes through the second fixing ring 4, the adjusting tube 5 and the first fixing ring 3 in sequence and is threadedly connected with the locking nut 10, so as to fix the first fixing ring 3 and the second fixing ring 4 together.
[0028] like Figure 1 and Figure 2 The bottom of the second fixing ring 4 can be fixed to an external mechanism. After the second fixing ring 4 is fixed, it is in a horizontal state, so that the first fixing ring 3 and the spring grinding disc 2 can both remain horizontal. The spring grinding disc 2 is a prior art, and is provided with a grinding sleeve. The core shaft of the spring grinding disc is composed of a central axis 1 located at the center of the spring grinding disc 2, a clamping ring 15 and a bearing ring 11 for installing the spring grinding disc 2, and the first fixing ring 3, the second fixing ring 4 and the adjusting tube 5.
[0029] The numbers of the annular positioning grooves 7 and the fixing holes 8 , the number of the adjusting tubes 5 , the number of the fixing screws 9 and the number of the locking nuts 10 on the first fixing ring 3 and the second fixing ring 4 are all consistent.
[0030] A load-bearing ring 11 is fixedly connected to the outer surface of the central shaft 1 and is located below the spring grinding disc 2 , and a first elastic washer 12 is fixedly connected to the top of the load-bearing ring 11 .
[0031] like Figure 2 The bearing ring 11 provides bearing for the spring grinding disc 2 from the bottom.
[0032] The bearing ring 11 is provided with clamping holes 13 in an annular array, and the bottom of the spring grinding disc 2 is fixedly connected with clamping shafts 14 in an annular array, and the clamping shafts 14 are adapted to the clamping holes 13.
[0033] like Figure 2 and Figure 5 When the spring grinding disc 2 is located on the bearing ring 11 , the clamping shaft 14 passes through the clamping hole 13 , which can prevent the central shaft 1 and the spring grinding disc 2 from rotating relative to each other.
[0034] A clamping ring 15 is sleeved on the outer surface of the central shaft 1 and located above the spring grinding disc 2 . A second elastic washer 16 is fixedly connected to the bottom of the clamping ring 15 . Positioning bayonet holes 17 are provided on both sides of the clamping ring 15 .
[0035] like Figure 1 , Figure 2 , Figure 4 and Figure 5 When the spring grinding disc 2 is mounted on the central shaft 1 , the first elastic washer 12 and the second elastic washer 16 serve as contact surfaces between the bearing ring 11 and the clamping ring 15 and the spring grinding disc 2 , respectively, and can provide elastic protection for the vibration of the spring grinding disc 2 .
[0036] The central shaft 1 is provided with a cavity 18 , in which a return spring 19 is fixedly connected. Both ends of the return spring 19 are fixedly connected with clamping plates 20 . The top of the clamping plate 20 is inclined, and the clamping plate 20 is matched with the positioning bayonet 17 .
[0037] like Figure 1 , Figure 4 , Figure 5 and Figure 6When installing the spring grinding disc 2, the top of the central axis 1 passes through the center of the spring grinding disc 2, and then the clamping ring 15 is moved downward, and the clamping ring 15 is sleeved on the central axis 1. The downward movement of the clamping ring 15 will squeeze the inclined surface of the clamping plate 20, and the clamping plate 20 will be pressed into the cavity 18. When the clamping ring 15 presses the spring grinding disc 2, the reset spring 19 extends and pushes the clamping plate 20, and the clamping plate 20 passes through the positioning bayonet 17 to clamp the clamping plate 20 to complete the installation of the spring grinding disc 2. Conversely, the clamping plate 20 is pushed into the cavity 18, and the clamping ring 15 can be moved up to remove the clamping ring 15, and then moved up to remove the spring grinding disc 2 from the central axis 1.
[0038] A positioning connecting plate 21 is fixedly connected to the top of the clamping ring 15 , a positioning pressing groove 22 used in conjunction with the positioning connecting plate 21 is provided on the top of the central shaft 1 , and a fixing bolt 23 is provided at the center of the top of the positioning connecting plate 21 .
[0039] like Figure 1 and Figure 4 By using the positioning connecting plate 21 to fit into the positioning groove 22, the positioning bayonet 17 and the clamping plate 20 can be quickly aligned, while preventing relative rotation between the clamping ring 15 and the center shaft 1. The positioning connecting plate 21 is then fixed with the fixing bolts 23, so that the clamping ring 15 can be better clamped on top of the spring grinding disc 2.
[0040] The working principle of the mandrel structure of a spring grinding disc provided by the utility model is as follows:
[0041] Align the positioning rings 6 at both ends of the adjusting tube 5 with the annular positioning grooves 7 on the first fixing ring 3 and the second fixing ring 4, and then close the first fixing ring 3 and the second fixing ring 4 so that the positioning rings 6 at both ends of the adjusting tube 5 are inserted into the annular positioning grooves 7. At this time, the fixing screw 9 can be passed from the bottom of the second fixing ring 4 through the fixing hole 8 and the adjusting tube 5, and then threadedly connected to the locking nut 10 above the first fixing ring 3, so as to fix the first fixing ring 3 and the second fixing ring 4 together. The height of the adjusting tube 5 is the distance between the first fixing ring 3 and the second fixing ring 4;
[0042] On the contrary, by separating the fixing screw 9 and the locking nut 10, the fixing screw 9 can be pulled out from the bottom, and the adjusting tube 5 of different heights can be replaced and installed between the first fixing ring 3 and the second fixing ring 4. Since the second fixing ring 4 is fixed to the external mechanism, the height change of the adjusting tube 5 will correspond to the height change of the first fixing ring 3, and the height of the central axis 1 and the spring grinding disc 2 installed thereon will change accordingly.
[0043] Compared with the related art, the mandrel structure of a spring grinding disc provided by the utility model has the following advantages:
[0044] Beneficial effects:
[0045] The utility model arranges an adjusting tube 5 between the first fixing ring 3 and the second fixing ring 4, and uses a fixing screw 9 to cooperate with a locking nut 1 to fix the first fixing ring 3, the second fixing ring 4 and the adjusting tube 5 together. At the same time, by replacing the adjusting tubes 5 of different heights, the height of the second fixing ring 4 can be adjusted, and the height of the central shaft 1 and the spring grinding disc 2 installed on the central shaft 1 can be further adjusted. The height of the spring grinding disc 2 can be adjusted according to actual needs.
[0046] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.
Claims
1. A core shaft structure of a spring grinding disc, comprising a central shaft (1), characterized in that: A spring grinding disc (2) is mounted on the central shaft (1); a first fixing ring (3) is fixedly connected to the bottom of the central shaft (1); a second fixing ring (4) is arranged below the first fixing ring (3); a plurality of adjusting tubes (5) are arranged between the first fixing ring (3) and the second fixing ring (4); and positioning rings (6) are fixedly connected to both ends of the adjusting tubes (5); The bottom of the first fixing ring (3) and the top of the second fixing ring (4) are both provided with annular positioning grooves (7) and fixing holes (8) in an annular array, the positioning ring (6) and the annular positioning grooves (7) are matched with each other, a fixing screw (9) is provided at the bottom of the second fixing ring (4), and a locking nut (10) is provided above the first fixing ring (3), the top of the fixing screw (9) passes through the second fixing ring (4), the adjusting tube (5) and the first fixing ring (3) in sequence and is threadedly connected to the locking nut (10), so as to fix the first fixing ring (3) and the second fixing ring (4) together.
2. The mandrel structure of a spring grinding disc according to claim 1, characterized in that: A load-bearing ring (11) is fixedly connected to the outer surface of the central shaft (1) and located below the spring grinding disc (2), and a first elastic washer (12) is fixedly connected to the top of the load-bearing ring (11).
3. The mandrel structure of a spring grinding disc according to claim 2, characterized in that: The bearing ring (11) is provided with clamping holes (13) in an annular array, and the bottom of the spring grinding disc (2) is fixedly connected with clamping shafts (14) in an annular array, and the clamping shafts (14) and the clamping holes (13) are matched.
4. The mandrel structure of a spring grinding disc according to claim 1, characterized in that: A clamping ring (15) is sleeved on the outer surface of the central shaft (1) and located above the spring grinding disc (2); a second elastic washer (16) is fixedly connected to the bottom of the clamping ring (15); and positioning bayonet holes (17) are provided on both sides of the clamping ring (15).
5. The mandrel structure of a spring grinding disc according to claim 4, characterized in that: The central shaft (1) is provided with a cavity (18), a return spring (19) is fixedly connected in the cavity (18), both ends of the return spring (19) are fixedly connected with a clamping plate (20), the top of the clamping plate (20) is inclined, and the clamping plate (20) and the positioning bayonet (17) are matched.
6. The mandrel structure of a spring grinding disc according to claim 5, characterized in that: The top of the clamping ring (15) is fixedly connected with a positioning connecting plate (21), the top of the central shaft (1) is provided with a positioning pressing groove (22) used in conjunction with the positioning connecting plate (21), and a fixing bolt (23) is arranged at the center of the top of the positioning connecting plate (21).