Damping base of numerical control machine tool
By designing a vibration damping base for CNC machine tools that includes a load-bearing ring and auxiliary support components, the difficulty of requiring external equipment to be disassembled and installed in the existing technology has been solved, and a convenient disassembly and replacement process has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI CHANGYUE MASCH EQUIP CO LTD
- Filing Date
- 2025-04-18
- Publication Date
- 2026-04-28
AI Technical Summary
The existing CNC machine tool vibration damping base requires the use of lifting or hoisting equipment for disassembly and assembly, making replacement inconvenient.
A shock-absorbing base assembly was designed, comprising a load-bearing ring, a shock-absorbing rubber body, and a polygonal cap. Combined with an auxiliary support assembly, it provides support through the concave support seat contacting the ground, enabling convenient disassembly without the need for external equipment.
It enables easy disassembly and replacement of the shock-absorbing base, improving operational efficiency and reducing reliance on external equipment.
Smart Images

Figure CN224168767U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vibration damping device technology, specifically a vibration damping base for a CNC machine tool. Background Technology
[0002] Vibration damping pads (also known as anti-vibration pads, shock-absorbing pads, or vibration-damping pads) are vibration damping components used for the installation of mechanical equipment. They are mainly used to absorb vibration, isolate noise, adjust level, and protect equipment and foundation structures. They are widely used in the field of CNC machine tools. Vibration damping pads are usually made of high-damping materials (such as rubber, polyurethane, cork, or special polymer materials). When these materials are subjected to vibration, internal molecular friction occurs, converting mechanical energy into heat energy and dissipating it, thereby reducing vibration transmission.
[0003] Existing vibration damping bases require lifting or hoisting equipment to separate the machine tool from the ground when installed on the bottom of a CNC machine tool, thus providing space for the installation of the vibration damping base. Consequently, when the vibration damping base needs to be replaced later, the same lifting or hoisting equipment is required for disassembly and replacement, making the process inconvenient. Therefore, to facilitate the convenient replacement of the vibration damping base, a vibration damping base for CNC machine tools is provided. Utility Model Content
[0004] The purpose of this utility model is to provide a vibration damping base for CNC machine tools in order to solve the problems mentioned above.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a vibration damping base for a CNC machine tool, comprising a vibration damping base assembly consisting of a load-bearing ring, a vibration damping rubber body, and a polygonal cap. The vibration damping rubber body is fixed to the inner side of the load-bearing ring and protrudes to the bottom of the load-bearing ring. The polygonal cap is fixed to the top of the load-bearing ring. An installation assembly is provided on the outer side of the top of the load-bearing ring. The installation assembly is used to connect and assemble the load-bearing ring with the CNC machine tool. An auxiliary support assembly is provided on the inner side of the installation assembly. When the auxiliary support assembly protrudes downward to the bottom of the installation assembly and contacts the ground, it is used to provide support for the disassembly of the vibration damping base assembly.
[0006] The mounting assembly includes a concave seat, a solid screw barrel, a through hole, a screw, a washer, and a mounting nut;
[0007] The solid screw is fixed to the top of the inner wall of the concave seat, and the through hole is opened at the top of the concave seat and communicates with the inner cavity of the concave seat;
[0008] The shock-absorbing base assembly also includes a threaded sleeve, which is threadedly connected to the outside of a solid screw cylinder, and the bottom of the threaded sleeve is threadedly connected to a load-bearing ring.
[0009] The screw is threaded to the inside of the solid screw barrel and passes through the through hole and the reserved mounting hole of the CNC machine tool. The gasket and mounting nut are sequentially sleeved on the outside of the screw from the top of the screw and the mounting nut is threaded to the screw and tightened, which is used to realize the connection and assembly of the vibration damping base assembly and the CNC machine tool.
[0010] As a further embodiment of this utility model: the auxiliary support assembly includes a concave support base, a screw hole, an adjusting bolt, and an inclined guide block;
[0011] The concave seat has symmetrical inclined guide grooves on both sides. The inclined guide blocks are symmetrically fixed on both sides of the concave support seat. The concave support seat is slidably connected to the inner side of the concave seat, and the inclined guide blocks are slidably connected to the inclined guide grooves. The screw holes are opened inside both sides of the concave support seat and penetrate through both ends of the outer side of the concave support seat. The adjusting bolts are threaded into the screw holes and penetrate through the screw holes to fit against the inner wall end face of the concave seat.
[0012] Tightening the adjusting bolt moves it inward toward the concave seat, providing pressure for the concave support seat to move downward and to fit against the ground, thus providing support for the disassembly of the shock-absorbing base assembly.
[0013] As a further improvement of this utility model: two sets of screw holes and adjusting bolts are symmetrically arranged, and multiple sets of inclined guide blocks and inclined guide grooves are arranged on the same side.
[0014] As a further improvement of this utility model: a positioning hole is provided at the rear end of the concave seat. When the concave support seat is at its highest position, a screw hole is aligned with the positioning hole. An adjusting bolt is inserted into the positioning hole to lock the position of the concave support seat.
[0015] As a further improvement of this utility model: a clamping nut is threadedly connected to the outer side of the solid screw sleeve, and the clamping nut is tightly fitted to the top of the threaded sleeve.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] By setting up auxiliary support components, when it is necessary to disassemble and replace the vibration damping base components, the concave support seat moves down to contact the ground to provide support for the CNC lathe. This allows for convenient disassembly of the vibration damping base components without the need for external lifting or hoisting devices, making the overall replacement operation more convenient and efficient. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the rear-end view structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the structure of this utility model from a downward viewing angle;
[0021] Figure 4 This is a disassembled schematic diagram of the shock-absorbing base assembly of this utility model;
[0022] Figure 5 This is a disassembled schematic diagram of the auxiliary support component of this utility model.
[0023] In the diagram: 1. Vibration damping base assembly; 101. Load-bearing ring; 102. Vibration damping rubber body; 103. Polygonal cap; 104. Threaded sleeve; 105. Compression nut; 2. Mounting assembly; 201. Concave seat; 202. Solid screw; 203. Through hole; 204. Inclined guide groove; 205. Positioning hole; 206. Screw; 207. Washer; 208. Mounting nut; 3. Auxiliary support assembly; 301. Concave support seat; 302. Screw hole; 303. Adjusting bolt; 304. Inclined guide block. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figures 1-5 In this embodiment of the present invention, a shock-absorbing base for a CNC machine tool includes a shock-absorbing base assembly 1 consisting of a load-bearing ring plate 101, a shock-absorbing rubber body 102, and a polygonal cap 103. The shock-absorbing rubber body 102 is fixed to the inner side of the load-bearing ring plate 101 and protrudes to the bottom of the load-bearing ring plate 101. The polygonal cap 103 is fixed to the top of the load-bearing ring plate 101. An installation assembly 2 is provided on the outer side of the top of the load-bearing ring plate 101. The installation assembly 2 is used to connect and assemble the load-bearing ring plate 101 with the CNC machine tool. An auxiliary support assembly 3 is provided on the inner side of the installation assembly 2. When the auxiliary support assembly 3 moves down and protrudes to the bottom of the installation assembly 2 and contacts the ground, it is used to provide support for the disassembly of the shock-absorbing base assembly 1.
[0026] Mounting assembly 2 includes a concave seat 201, a solid screw barrel 202, a through hole 203, a screw 206, a washer 207, and a mounting nut 208;
[0027] The solid screw cylinder 202 is fixed to the top of the inner wall of the concave seat 201, and the through hole 203 is opened at the top of the concave seat 201 and communicates with the inner cavity of the concave seat 201;
[0028] The shock-absorbing base assembly 1 also includes a threaded sleeve 104, which is threadedly connected to the outside of the solid screw cylinder 202, and the bottom of the threaded sleeve 104 is threadedly connected to the load-bearing ring 101.
[0029] The screw 206 is threaded to the inner side of the solid screw barrel 202 and passes through the through hole 203 and the reserved mounting hole of the CNC machine tool. The gasket 207 and the mounting nut 208 are sequentially sleeved from the top of the screw 206 to the outside of the screw 206 and the mounting nut 208 is threaded to the screw 206 and tightened, which is used to realize the connection and assembly of the shock-absorbing base assembly 1 and the CNC machine tool.
[0030] The auxiliary support assembly 3 includes a concave support base 301, a screw hole 302, an adjusting bolt 303, and an inclined guide block 304;
[0031] Inclined guide grooves 204 are symmetrically provided on both sides of the concave seat 201. Inclined guide blocks 304 are symmetrically fixed on both sides of the concave support seat 301. The concave support seat 301 is slidably connected to the inner side of the concave seat 201, and the inclined guide blocks 304 are limited and slidably connected to the inclined guide grooves 204. Screw holes 302 are opened inside both sides of the concave support seat 301 and penetrate through both ends of the outer side of the concave support seat 301. Adjusting bolts 303 are threadedly connected to screw holes 302 and penetrate through screw holes 302 to fit against the inner wall end face of the concave seat 201.
[0032] Tightening the adjusting bolt 303 moves the adjusting bolt 303 toward the inside of the concave seat 201, providing a compressive force for the downward movement of the concave support seat 301. The downward movement of the concave support seat 301 to fit against the ground provides support for the disassembly of the shock-absorbing base assembly 1.
[0033] The outer side of the solid screw sleeve 202 is also threaded with a clamping nut 105, which fits tightly against the top of the threaded sleeve 104.
[0034] In this embodiment, it should be noted that when installing the vibration damping base assembly 1 on the CNC machine tool for the first time, the CNC machine tool needs to be lifted by a lifting device or hoisting device, just like the traditional installation operation. Then, the concave seat 201 is placed on the bottom of the CNC machine tool, and the screw 206 is passed through the mounting hole and through hole 203 of the CNC machine tool from top to bottom to the inside of the fixing screw 202. The screw 206 is then threadedly connected to the fixing screw 202 and tightened. After that, the washer 207 and the mounting nut 208 are sequentially sleeved on the outside of the screw 206, and the mounting nut 208 is then threaded onto the screw. The screw connection of rod 206 completes the installation of the shock-absorbing component 1. Then, the CNC machine tool is slowly lowered, with its shock-absorbing rubber body 102 contacting the ground, while the bottom of the concave seat 201 does not contact the ground. During the subsequent operation of the CNC lathe, the shock-absorbing rubber body 102 is used to perform shock absorption on the CNC lathe. (It should be noted that when the concave seat 201 is installed, the shock-absorbing base component 1 and the mounting seat 201 are pre-assembled and fixed. In addition, the shock-absorbing structure composed of the load-bearing ring plate 101 and the shock-absorbing rubber body 102 is the same as the principle of the existing shock-absorbing pad structure on the market. Therefore, it will not be described in detail here.)
[0035] When replacing or maintaining the shock absorber base assembly 1 in the later stages, no external lifting or hoisting device is required. It can be supported only by the auxiliary support assembly 3. The operation method is as follows:
[0036] The adjusting bolt 303 is turned by a tool, causing it to move inward toward the concave seat 201. The adjusting bolt 303 presses against the inner wall end face of the concave seat 201. This pressing force is transmitted to the concave support 301, causing it to move toward the front end. At the same time, under the mutual guidance of the inclined guide block 304 and the inclined guide groove 204, the concave support 301 moves downward as it moves. That is, the movement trajectory of the concave support 301 is inclined downward. Finally, the bottom of the concave support 301 protrudes from the concave seat 201 and comes into contact with and adheres to the ground.
[0037] Next, the clamping nut 105 is loosened and moved to the highest position to release the clamping on the threaded sleeve 104. Then, the threaded sleeve 104 is turned with a tool to move the threaded sleeve 104 upward along the outer wall of the fixed screw cylinder 202, and drive the load-bearing ring 101 and the shock-absorbing rubber body 102 to move upward as a whole. Finally, the bottom of the shock-absorbing rubber body 102 is separated from the ground and has height space. At this time, the concave support seat 301 provides support for the CNC machine tool.
[0038] Then, a tool is used to limit the threaded sleeve 104, and another tool is used to screw the polygonal cap 103, so that the load-bearing ring 101 and the threaded sleeve 104 are loosened and separated. This causes the load-bearing ring 101 and the shock-absorbing rubber body 102 to move down as a whole and separate from the threaded sleeve 104, thus completing the disassembly operation of the load-bearing ring 101 and the shock-absorbing rubber body 102.
[0039] Afterwards, take out the new load-bearing ring 101 and the shock-absorbing rubber body 102, and perform the reverse operation according to the above steps. The overall operation is simple and convenient.
[0040] Please refer to this carefully. Figures 1-4 Two sets of screw holes 302 and adjusting bolts 303 are symmetrically arranged, and multiple sets of inclined guide blocks 304 and inclined guide grooves 204 are located on the same side.
[0041] The concave seat 201 has a positioning hole 205 at its rear end. When the concave support 301 is at its highest position, a screw hole 302 is aligned with the positioning hole 205. An adjusting bolt 303 is inserted into the positioning hole 205 to lock the position of the concave support 301.
[0042] In this embodiment: when the concave support 301 is at its highest point, the position of the concave support 301 is locked by inserting the adjusting bolt 303 into the positioning hole 205. When it is necessary to move the concave support 301 downward, the adjusting bolt 303 corresponding to the positioning hole 205 is first turned in the opposite direction to move it outward and separate it from the positioning hole 205. Then, the other adjusting bolt 303 is turned in the forward direction. After the concave support 301 contacts the ground, the adjusting bolt 303 corresponding to the positioning hole 205 is turned in the forward direction again to make it also fit against the inner wall end face of the concave support 301.
[0043] Thus, through the structural cooperation of two sets of adjusting bolts 303 and multiple sets of inclined guide blocks 304 and inclined guide grooves 204, the support stability of the concave support seat 301 can be effectively improved, ensuring the safety and stability of the replacement operation.
[0044] 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. A vibration damping base for a CNC machine tool, comprising a vibration damping base assembly (1) consisting of a load-bearing ring disc (101), a vibration damping rubber body (102), and a polygonal cap (103), wherein the vibration damping rubber body (102) is fixed to the inner side of the load-bearing ring disc (101) and protrudes to the bottom of the load-bearing ring disc (101), and the polygonal cap (103) is fixed to the top of the load-bearing ring disc (101), characterized in that, An installation component (2) is provided on the top outer side of the load-bearing ring (101). The installation component (2) is used to connect and assemble the load-bearing ring (101) with the CNC machine tool. An auxiliary support component (3) is provided on the inner side of the installation component (2). When the auxiliary support component (3) moves down and protrudes to the bottom of the installation component (2) and contacts the ground, it is used to provide support for the disassembly of the shock-absorbing base component (1). The mounting assembly (2) includes a concave seat (201), a solid screw barrel (202), a through hole (203), a screw (206), a gasket (207), and a mounting nut (208); The solid screw cylinder (202) is fixed to the top of the inner wall of the concave seat (201), and the through hole (203) is opened at the top of the concave seat (201) and communicates with the inner cavity of the concave seat (201); The shock-absorbing base assembly (1) also includes a threaded sleeve (104), which is threadedly connected to the outside of the solid screw cylinder (202), and the bottom of the threaded sleeve (104) is threadedly connected to the load-bearing ring (101). The screw (206) is threaded to the inside of the solid screw barrel (202) and passes through the through hole (203) and the reserved mounting hole of the CNC machine tool. The gasket (207) and the mounting nut (208) are sequentially sleeved on the outside of the screw (206) from the top of the screw (206) and the mounting nut (208) is threaded to the screw (206) and tightened, so as to realize the connection and assembly of the shock-absorbing base assembly (1) and the CNC machine tool.
2. The vibration damping base for a CNC machine tool according to claim 1, characterized in that, The auxiliary support assembly (3) includes a concave support base (301), a screw hole (302), an adjusting bolt (303), and an inclined guide block (304). The concave seat (201) has symmetrical inclined guide grooves (204) on both sides. The inclined guide blocks (304) are symmetrically fixed on both sides of the concave support seat (301). The concave support seat (301) is slidably connected to the inner side of the concave seat (201), and the inclined guide blocks (304) are limited and slidably connected to the inclined guide grooves (204). The screw holes (302) are opened inside both sides of the concave support seat (301) and penetrate through both ends of the outer side of the concave support seat (301). The adjusting bolts (303) are threaded into the screw holes (302) and penetrate through the screw holes (302) to fit against the inner wall end face of the concave seat (201). Tightening the adjusting bolt (303) moves the adjusting bolt (303) toward the inside of the concave seat (201), providing a compressive force for the downward movement of the concave support seat (301), and the downward movement of the concave support seat (301) to fit against the ground provides support for the disassembly of the shock-absorbing base assembly (1).
3. The vibration damping base for a CNC machine tool according to claim 2, characterized in that, Two sets of screw holes (302) and adjusting bolts (303) are symmetrically arranged, and multiple sets of inclined guide blocks (304) and inclined guide grooves (204) are arranged on the same side.
4. The vibration damping base for a CNC machine tool according to claim 3, characterized in that, The concave seat (201) has a positioning hole (205) at its rear end. When the concave support seat (301) is at its highest position, a screw hole (302) is aligned with the positioning hole (205). An adjusting bolt (303) is inserted into the inside of the positioning hole (205) to lock the position of the concave support seat (301).
5. The vibration damping base for a CNC machine tool according to claim 1, characterized in that, The outer side of the solid screw sleeve (202) is also threaded with a clamping nut (105), which is tightly fitted to the top of the threaded sleeve (104).