A vertical machining center bed

Abstract

The application discloses a vertical machining center bed body and belongs to the field of machining center bed bodies. The vertical machining center bed body comprises a supporting seat and an anchor bolt. An installation groove for installing and fixing the anchor bolt is embedded on the outer surface of the supporting seat. The upper end of the anchor bolt penetrates into the inner side of the installation groove. A locking sleeve is threadedly connected to the outer surface of the anchor bolt. A limiting assembly is arranged on the inner side of the anchor bolt. The limiting assembly is used for limiting the locking sleeve and the anchor bolt. The upper side of the locking sleeve is in contact with a pressing sleeve. When the pressing sleeve and the locking sleeve are loose, the pressing sleeve is extruded by a pressing rod, so that the friction between the pressing sleeve and the locking sleeve is increased, the connection between the locking sleeve and the anchor bolt is more compact, the pressing sleeve and the locking sleeve can be re-pressed and fixed, the further loosening of the locking sleeve can be further prevented, and the stability of the installation and connection of the supporting seat is ensured.

Description

Technical Field

[0001] This invention relates to the field of machining center beds, and more specifically, to a vertical machining center bed. Background Technology

[0002] A machining center is a high-efficiency automated machine tool composed of mechanical equipment and a CNC system, suitable for machining complex parts. Its main structure includes a base component, a spindle component, a CNC system, and a tool changing system. The base component is the basic structure of the machining center, which mainly consists of three parts: the bed, the worktable, and the column. The base component must not only bear the static load of the machining center, but also the dynamic load generated during cutting.

[0003] When installing existing vertical machining center beds, bolts are usually pre-embedded in the ground first, and then the vertical machining center bed is installed and fixed by bolts and nuts. For example, in the prior art, Chinese patent with publication number CN210967835U discloses a vertical machining center bed that uses threaded columns and threaded sleeves to support and fix the vertical machining center bed, and at the same time can adjust the level of the vertical machining center bed.

[0004] In existing technologies, to prevent loosening between the screw and nut, anti-loosening nuts or double nuts are typically used to connect the bolts with threads, thus reducing the probability of bolt loosening. However, vertical machining center beds generate vibrations at a certain frequency during operation, especially when the spindle starts or stops. During this process, tool wear or imbalance can further intensify the vibration of the vertical machining center bed. When the vertical machining center bed vibrates, the vibration is transmitted to the screw and nut. Over time, even with anti-loosening nuts or double nuts, the nut may still loosen or even fall off under certain frequency vibrations. Loose nuts not only increase the instability of the vertical machining center bed but also increase the danger of its operation. Summary of the Invention

[0005] To address the problems existing in the prior art, the present invention aims to provide a vertical machining center bed that, by setting up a pressing component, can compress the pressing sleeve when the pressing sleeve and locking sleeve become loose, thereby increasing the friction between the pressing sleeve and locking sleeve and making the connection between the locking sleeve and the anchor bolt tighter. This can effectively re-tighten and fix the pressing sleeve and locking sleeve, and further prevent the locking sleeve from loosening further, thus ensuring the stability of the support base installation connection.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A vertical machining center bed includes a support base and anchor bolts. The outer surface of the support base is embedded with an installation groove for installing and fixing the anchor bolts. The upper end of the anchor bolt extends through the inner side of the installation groove. A locking sleeve is threaded onto the outer surface of the anchor bolt. A limit component is provided on the inner side of the anchor bolt. The limit component is used to limit the engagement of the locking sleeve and the anchor bolt.

[0008] The upper side of the locking sleeve is in contact with the pressing sleeve, and the upper surface of the pressing sleeve is provided with a clamping assembly. The clamping assembly includes a guide groove formed on the upper side of the pressing sleeve, a friction block slidably connected to the inner surface of the guide groove, the friction block being in contact with the outer surface of the anchor bolt, and the clamping assembly being used to clamp and fix the anchor bolt.

[0009] An anti-detachment component is provided on the upper side of the clamping sleeve. The anti-detachment component includes a notch opened on the outer surface of the clamping sleeve. A pressure rod is slidably attached to the outer surface of the upper end of the clamping sleeve. The anti-detachment component is used to prevent the clamping sleeve from loosening and falling off.

[0010] Furthermore, the support base has an embedded through hole on its inner side, the upper end of the through hole extending to the inner side of the mounting groove. There are four sets of mounting grooves, and adjacent sets are symmetrically distributed. The outer surface of the upper end of the mounting groove is arc-shaped. The lower end of the anchor bolt is fixed to the ground by pouring concrete.

[0011] Furthermore, the outer surface of the anchor bolt is provided with a washer, the washer is circular, the washer is located between the support base and the ground and is in close contact with the support base and the ground surface, the number of anchor bolts is four sets and they are symmetrically distributed, and a connecting seat is fixedly connected to the upper outer surface of the support base.

[0012] Furthermore, a guide tube is embedded inside the anchor bolt, and a guide block is fixedly connected to the inner surface of the guide tube. The guide block is annular, and a connecting rod is slidably connected to the middle of the guide block. A pressure plate is fixedly connected to the upper end of the connecting rod, and a magnet is magnetically connected to the outer surface of the upper end of the pressure plate. The upper end of the magnet is fixedly connected to the upper surface of the inner surface of the mounting groove, and an elastic plate is fixedly connected to the lower end of the connecting rod. The elastic plate has a U-shaped structure.

[0013] Furthermore, a guide channel is provided on the inner side of the anchor bolt, and the left and right ends of the guide channel extend to the inner side of the support base. The guide channel is perpendicular to the guide tube. A limit rod is slidably connected to the inner side of the guide channel. There are two sets of limit rods, which are symmetrically distributed from left to right. The left and right ends of the elastic plate are fixedly connected to the limit rods respectively. A spring is fixedly connected between the two sets of limit rods.

[0014] Furthermore, the upper surface of the anchor bolt is conical, the inner surface of the guide groove is spirally connected to a spiral sleeve, the lower outer surface of the spiral sleeve is rotatably connected to a friction block, the number of friction blocks is several groups and they are distributed in a ring array, the cross-section of the friction block is trapezoidal, the guide groove is annular, a stop block is provided between the spiral sleeve and the anchor bolt, the stop block is in close contact with the spiral sleeve and the anchor bolt respectively, and the upper outer surface of the friction block is in close contact with the stop block.

[0015] Furthermore, an extrusion assembly is provided on the inner side of the support base. The extrusion assembly includes a first cavity embedded in the inner side of the support base. The first cavity is cylindrical. A movable sleeve is slidably connected to the inner surface of the first cavity. A support rod is rotatably connected to the rear end of the inner surface of the first cavity. The support rod extends through to the outer side of the support base and is rotatably connected to the support base.

[0016] Furthermore, a rotating component is fixedly connected to the front end of the support rod, and a slot is formed on the outer surface of the front end of the rotating component. The support rod passes through both ends of the movable sleeve and is connected to the movable sleeve by a spiral drive. A top block is fixedly connected to the outer surface of the rear end of the movable sleeve, and the top block is conical.

[0017] Furthermore, the anti-detachment component also includes a second cavity embedded in the inner side of the support base. The lower end of the second cavity extends through to the inner side of the mounting groove. The first cavity and the second cavity are perpendicularly distributed. A pressure rod is slidably connected to the inner surface of the second cavity. The lower end of the pressure rod is arc-shaped, and the upper end of the pressure rod is in contact with the outer surface of the top block.

[0018] Furthermore, the notch is arc-shaped, and there are several groups of notches arranged in a ring array. The upper outer surface of the locking sleeve is provided with a slot, which is semi-cylindrical and is arranged in several groups in a ring array.

[0019] Compared with the prior art, the advantages of this invention are:

[0020] (1) This solution sets up a squeezing component. When the squeezing sleeve and the locking sleeve become loose, the squeezing sleeve is squeezed by the squeezing rod, which increases the friction between the squeezing sleeve and the locking sleeve and makes the connection between the locking sleeve and the anchor bolt tighter. This can achieve the effect of re-squeezing and fixing the squeezing sleeve and the locking sleeve, and can also further prevent the locking sleeve from loosening, thereby ensuring the stability of the support base installation connection.

[0021] (2) By setting up anti-loosening components, this solution can lock and limit the locking sleeve and the pressing sleeve in time by means of pressure rod when the locking sleeve and the pressing sleeve become loose, thereby reducing the probability of the locking sleeve and the pressing sleeve continuing to loosen, and thus effectively improving the stability of the vertical machining center bed during operation.

[0022] (3) By setting a limiting component, the two sets of limiting rods will slide to the inside of the support seat under the elastic thrust, so that the limiting rods can lock and limit the support seat and the anchor bolt, preventing further loosening between the support seat and the anchor bolt, thus playing a certain anti-loosening effect between the anchor bolt and the support seat. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0025] Figure 3 This is a top view of the overall structure of the present invention;

[0026] Figure 4 For the present invention Figure 3 Sectional view along line AA;

[0027] Figure 5 For the present invention Figure 3 Sectional view of the structure along the BB direction;

[0028] Figure 6 For the present invention Figure 2 Cross-sectional view of the structure along the CC direction;

[0029] Figure 7 For the present invention Figure 4 Enlarged view of point D;

[0030] Figure 8 For the present invention Figure 4 Enlarged view of point E in the middle;

[0031] Figure 9 For the present invention Figure 5 Enlarged diagram of point F in the middle.

[0032] Explanation of the labels in the diagram:

[0033] 11. Support base; 12. Connecting base; 13. Flooring; 14. Mounting groove; 15. Washer; 17. Anchor bolt;

[0034] Limiting components; 18. Limiting rod; 19. Guide channel; 20. Conduit; 21. Connecting rod; 22. Elastic plate; 23. Spring; 24. Guide block; 25. Pressure plate;

[0035] Clamping assembly; 26. Locking sleeve; 27. Slot; 28. Pressing sleeve; 29. ​​Notch; 30. Friction block;

[0036] Extrusion assembly; 31. Spiral sleeve; 32. Stop block; 33. First cavity; 34. Movable sleeve;

[0037] 35. Anti-detachment component; 36. Rotating component; 37. Top block; 38. Second cavity; 39. Pressure rod; 40. Guide groove; 41. Support rod; 42. Through hole; 43. Magnet. Detailed Implementation

[0038] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0039] Please see Figures 1 to 9 A vertical machining center bed includes a support base 11 and an anchor bolt 17. The outer surface of the support base 11 is embedded with an installation groove 14 for installing and fixing the anchor bolt 17. The upper end of the anchor bolt 17 extends through the inner side of the installation groove 14. A locking sleeve 26 is threadedly connected to the outer surface of the anchor bolt 17. A limit component is provided on the inner side of the anchor bolt 17. The limit component is used to limit the engagement of the locking sleeve 26 with the anchor bolt.

[0040] The upper side of the locking sleeve 26 is in contact with the pressing sleeve 28. The upper surface of the pressing sleeve 28 is provided with a clamping assembly. The clamping assembly includes a guide groove 39 formed on the upper side of the pressing sleeve 28, and a friction block 30 slidably connected to the inner surface of the guide groove 39. The friction block 30 is in contact with the outer surface of the anchor bolt 17. The clamping assembly is used to clamp and fix the anchor bolt 17.

[0041] An anti-detachment component is provided on the upper side of the clamping sleeve 28. The anti-detachment component includes a notch 29 formed on the outer surface of the clamping sleeve 28. A pressure rod 38 is slidably attached to the outer surface of the upper end of the clamping sleeve 28. The anti-detachment component is used to prevent the locking sleeve 26 from loosening and falling off.

[0042] By adopting the above technical solution, the bed of the machining center plays a fixed support role for the machining center. Before the machining center is installed, positioning anchor bolts 17 need to be installed in the floor 13. Then, the bed of the machining center is fixed by locking sleeve 26 in conjunction with anchor bolts 17. The bed can tightly clamp the anchor bolts 17 through the clamping component. The anti-loosening component can reduce the probability of locking sleeve 26 loosening due to bed vibration. The limiting component can lock and limit locking sleeve 26 when it is accidentally loosened, thereby preventing locking sleeve 26 from falling further.

[0043] like Figure 1 , Figure 3, Figure 4 and Figure 7 As shown, the support base 11 has an embedded through hole 41, the upper end of the through hole 41 extends to the inner side of the mounting groove 14, the number of mounting grooves 14 is four sets and the adjacent two sets are symmetrically distributed, the upper outer surface of the mounting groove 14 is arc-shaped, and the lower end of the anchor bolt 17 is fixed by pouring with the ground 13.

[0044] An anchor bolt 17 has a washer 15 on its outer surface. The washer 15 is circular and is located between the support base 11 and the ground 13, and is in close contact with the surfaces of the support base 11 and the ground 13. There are four sets of anchor bolts 17, which are symmetrically distributed. A connecting seat 12 is fixedly connected to the upper outer surface of the support base 11.

[0045] By adopting the above technical solution, a support base 11 for mounting and fixing the machining center is fixedly connected to the lower end of the main body. Four sets of mounting grooves 14 are embedded in the surface of the support base 11 for fixing the support base 11. The mounting grooves 14 are embedded inside the support base 11, reducing the space occupied by the support base 11. Furthermore, the upper surface of the mounting grooves 14 adopts an arc-shaped structure, which can better decompose and transfer the force on the upper side of the mounting grooves 14. When hoisting the machining center bed, washers 15 are first fitted onto the outside of the four sets of anchor bolts 17, and the levelness of the four sets of washers 15 is corrected so that the upper surfaces of the four sets of washers 15 are at the same horizontal height. Simultaneously, the washers 15 can provide a certain buffering and shock absorption effect when the machining center vibrates. Moreover, by contacting the ground surface 13 with the washers 15, the contact area between the support base 11 and the ground surface 13 can be reduced, thereby lowering the ground surface area. The unevenness affects the installation accuracy of the machining center. The support base 11 is then hoisted onto the upper side of the anchor bolt 17, aligning the anchor bolt 17 with the through hole 41. The support base 11 is then slowly lowered so that the upper part of the anchor bolt 17 passes through the through hole 41 and enters the mounting groove 14. The position of the support base 11 is then adjusted and calibrated. Next, the locking sleeve 26 is tightened on the upper side of the anchor bolt 17. The lower end of the locking sleeve 26, through its threaded connection with the anchor bolt 17, fits tightly against the lower surface of the mounting groove 14, thus locking and fixing the support base 11 through the anchor bolt 17 and the locking sleeve 26. A pressure sleeve 28 is provided on the upper side of the locking sleeve 26. The pressure sleeve 28 is fitted outside the anchor bolt 17, with its lower end contacting the surface of the locking sleeve 26. The pressure sleeve 28 compresses the locking sleeve 26, reducing the chance of the locking sleeve 26 loosening, thereby improving the installation firmness of the support base 11 and ensuring the working stability of the vertical machining center bed.

[0046] like Figure 4 , Figure 7 and Figure 8As shown, a guide tube 20 is embedded in the inner side of the anchor bolt 17. A guide block 24 is fixedly connected to the inner surface of the guide tube 20. The guide block 24 is annular. A connecting rod 21 is slidably connected to the middle of the guide block 24. A pressure plate 25 is fixedly connected to the upper end of the connecting rod 21. A magnet 42 is magnetically connected to the outer surface of the upper end of the pressure plate 25. The upper end of the magnet 42 is fixedly connected to the upper side of the inner surface of the mounting groove 14. An elastic plate 22 is fixedly connected to the lower end of the connecting rod 21. The elastic plate 22 has a U-shaped structure.

[0047] The anchor bolt 17 has a guide channel 19 on its inner side. The left and right ends of the guide channel 19 extend to the inner side of the support base 11. The guide channel 19 is perpendicular to the guide tube 20. The guide channel 19 is slidably connected to a limiting rod 18. There are two sets of limiting rods 18, which are symmetrically distributed from left to right. The left and right ends of the elastic plate 22 are fixedly connected to the limiting rods 18 respectively. A spring 23 is fixedly connected between the two sets of limiting rods 18.

[0048] By adopting the above technical solution, after the support base 11 is installed in place, in the initial state, the magnet 42 inside the mounting groove 14 magnetically attracts and fixes the pressure plate 25, thereby fixing and supporting the tie rod through the pressure plate 25. The anchor bolt 17 has a guide tube 20 inside, and the guide block 24 inside the guide tube 20 slides and guides the tie rod. The tie rod supports the elastic plate 22, so that the elastic plate 22 is inside the guide tube 20 and remains in a bent state. The two sets of limiting rods 18 are inside the guide channel 19 under the elastic force of the elastic plate 22, and at the same time, they compress the spring 23 between the two sets of limiting rods 18. When the locking sleeve 26 and the pressing sleeve 28 on the surface of the anchor bolt 17 loosen unexpectedly, the support base 11 and the anchor bolt 17 will also loosen, thereby making the support base 11 and the anchor bolt 17 loosen. There will be relative movement between the anchor bolts 17. When the machining center vibrates during the machining process, the distance between the pressure plate 25 and the support seat 11 will also change. When the tension between the pressure plate 25 and the magnet 42 is greater than the magnetic attraction, the pressure plate 25 will disengage from the magnet 42. At this time, under the elastic force of the elastic plate 22 and the spring 23, the bending arc of the elastic plate 22 will gradually decrease. The two sets of limiting rods 18 will slide along the guide channel 19 to the inside of the support seat 11 under the pushing force of the elastic plate 22. By setting the limiting component, the limiting rods 18 can lock and limit the support seat 11 and the anchor bolt 17, preventing further loosening between the support seat 11 and the anchor bolt 17, thereby playing a certain anti-loosening effect between the anchor bolt 17 and the support seat 11.

[0049] like Figure 4 and Figure 8As shown, the upper surface of the anchor bolt 17 is conical, the inner surface of the guide groove 39 is spirally connected to the spiral sleeve 31, the lower outer surface of the spiral sleeve 31 is rotatably connected to the friction block 30, the number of friction blocks 30 is several groups and they are distributed in a ring array, the cross section of the friction block 30 is trapezoidal, the guide groove 39 is annular, a stop block 32 is provided between the spiral sleeve 31 and the anchor bolt 17, the stop block 32 is in contact with the spiral sleeve 31 and the anchor bolt 17 respectively, and the upper outer surface of the friction block 30 is in contact with the stop block 32.

[0050] By adopting the above technical solution, after the locking sleeve 26 is installed in place, the clamping sleeve 28 is fitted onto the outside of the anchor bolt 17. Then, the spiral sleeve 31 inside the guide groove 39 is rotated. The spiral sleeve 31, connected to the clamping sleeve 28 by a spiral drive, moves downward synchronously during rotation. During the movement of the spiral sleeve 31, the friction block 30 moves downward synchronously. As the annularly distributed friction block 30 continues to move downward, the friction block 30 gradually adheres to the surface of the anchor bolt 17 and clamps the anchor bolt 17. Since the surface of the anchor bolt 17 is conical, the locking sleeve 26 can be squeezed by the gravity and extrusion force of the clamping sleeve 28, thereby making the connection between the locking sleeve 26 and the anchor bolt 17 more secure and providing a good anti-loosening effect for the locking sleeve 26. The stop block 32, located inside the guide groove 39, can provide rotational support for the spiral sleeve 31, making the rotation of the spiral sleeve 31 more stable, and also indirectly increasing the friction between the clamping sleeve 28 and the anchor bolt 17.

[0051] like Figure 5 , Figure 6 and Figure 9 As shown, a compression assembly is provided on the inner side of the support base 11. The compression assembly includes a first cavity 33 embedded in the inner side of the support base 11. The first cavity 33 is cylindrical. A movable sleeve 34 is slidably connected to the inner surface of the first cavity 33. A support rod 40 is rotatably connected to the rear end of the inner surface of the cavity. The support rod 40 extends to the outer side of the support base 11 and is rotatably connected to the support base 11.

[0052] The front end of the support rod 40 is fixedly connected to a rotating component 35. A slot is formed on the outer surface of the front end of the rotating component 35. The support rod 40 passes through both ends of the movable sleeve 34 and is screw-driven to the movable sleeve 34. A top block 36 is fixedly connected to the outer surface of the rear end of the movable sleeve 34. The top block 36 is conical.

[0053] By adopting the above technical solution, when the operator finds that the locking sleeve 26 and the pressing sleeve 28 are loose during operation, the operator can use a screwdriver to turn the rotating part 35. The rotating part 35 has a slot on its surface to better engage with the screwdriver. During the rotation of the rotating part 35, it will drive the support rod 40 to rotate synchronously. The movable sleeve 34 is connected to the support rod 40 by a screw drive. As the support rod 40 rotates, the movable sleeve 34 will slide along the inside of the first cavity 33. During the movement of the movable sleeve 34, it will drive the top block 36 to move synchronously. The top block 36 is conical and will contact the upper surface of the pressure rod 38 during the movement. During the movement of the top block 36, it will exert pressure on the pressure rod 38. 8. The pressure rod 38 is pressed down along the second cavity 37, and the lower end of the pressure rod 38 is arc-shaped and fits tightly against the surface of the clamping sleeve 28. As the pressure rod 38 is pressed down, the pressure applied by the pressure rod 38 to the clamping sleeve 28 will increase accordingly. Similarly, the pressure applied by the clamping sleeve 28 to the locking sleeve 26 will also increase accordingly, thereby increasing the friction between the clamping sleeve 28 and the locking sleeve 26. This makes the connection between the locking sleeve 26 and the anchor bolt 17 tighter, thus enabling the clamping sleeve 28 and the locking sleeve 26 to be re-tightened and fixed. At the same time, it can further prevent the locking sleeve 26 from loosening further, thereby ensuring the stability of the support base 11 installation connection.

[0054] like Figure 4 , Figure 5 , Figure 6 and Figure 9 As shown, the anti-detachment component also includes a second cavity 37 embedded in the inner side of the support base 11. The lower end of the second cavity 37 extends through to the inner side of the mounting groove 14. The first cavity 33 is perpendicularly distributed to the second cavity 37. A pressure rod 38 is slidably connected to the inner surface of the second cavity 37. The lower end of the pressure rod 38 is arc-shaped, and the upper end of the pressure rod 38 is in contact with the outer surface of the top block 36.

[0055] The notch 29 is arc-shaped, and there are several groups of notches 29 arranged in a ring array. The upper outer surface of the locking sleeve 26 is provided with a slot 27, which is semi-cylindrical and is arranged in several groups in a ring array.

[0056] By adopting the above technical solution, when the locking sleeve 26 and the pressing sleeve 28 become unexpectedly loose, the pressing sleeve 28 will move relative to the pressing rod 38. Since the pressing sleeve 28 has annularly arrayed notches 29 on its surface, as the pressing sleeve 28 continues to loosen, when the notches 29 on the surface of the pressing sleeve 28 move to the underside of the pressing rod 38, the pressing sleeve 28 will disengage from the pressing rod 38. Compression bar 38 Slide downwards along the second cavity 37, at this time Compression bar 38The lower end slides into the groove 27 on the surface of the locking sleeve 26, where the groove 27 engages and limits the lower end of the pressure rod 38. The pressure rod 38 can engage and limit the locking sleeve 26 through the groove 27, thus preventing further rotation of the locking sleeve 26. The annular distribution of the groove 27 greatly increases the friction between the locking sleeve 26 and the pressure sleeve 28, thereby reducing the probability of relative movement between them. The lower end of the pressure rod 38 engages into the groove 27. After the inner side is 7, the middle part of the pressure rod 38 will be in the groove on the surface of the clamping sleeve 28. The arc-shaped groove can further prevent the rotation of the clamping sleeve 28. By setting the anti-loosening component, when the locking sleeve 26 and the clamping sleeve 28 become loose, the pressure rod 38 can lock and limit the locking sleeve 26 and the clamping sleeve 28 in time, thereby reducing the probability of the locking sleeve 26 and the clamping sleeve 28 continuing to loosen, and thus effectively improving the stability of the vertical machining center bed during operation.

[0057] Instructions for use: When hoisting the machining center bed, the upper part of the anchor bolt 17 passes through the through hole 41 and enters the mounting groove 14. The anchor bolt 17, in conjunction with the locking sleeve 26, locks and fixes the support base 11. The clamping sleeve 28 is fitted on the outside of the anchor bolt 17, with its lower end in contact with the surface of the locking sleeve 26. The clamping sleeve 28 compresses the locking sleeve 26. After the locking sleeve 26 is installed in place, the spiral sleeve 31 will drive the friction block 30 to move downwards synchronously during its movement. As the annularly distributed friction blocks 30 continue to move downwards, the friction blocks 30 will gradually adhere to the surface of the anchor bolt 17 and clamp the anchor bolt 17. When the locking sleeve 26 and the clamping sleeve 28 show signs of loosening, the top block 36 will compress the pressure rod 38 during its movement, thereby compressing the pressure rod. As rod 38 moves downward along the second cavity 37, the pressure exerted by rod 38 on clamping sleeve 28 increases accordingly. Similarly, the pressure exerted by clamping sleeve 28 on locking sleeve 26 also increases, making the connection between locking sleeve 26 and anchor bolt 17 tighter. When locking sleeve 26 and clamping sleeve 28 become loose unexpectedly, rod 38 promptly locks and limits locking sleeve 26 and clamping sleeve 28, preventing them from loosening further. At the same time, two sets of limiting rods 18 slide along guide channel 19 to the inside of support seat 11 under the thrust of elastic plate 22. By setting limiting components, limiting rods 18 engage and limit the connection between support seat 11 and anchor bolt 17, preventing further loosening between support seat 11 and anchor bolt 17.

[0058] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A vertical machining center bed comprising a support seat (11) and an anchor bolt (17), characterized in that: The outer surface of the support base (11) is embedded with an installation slot (14) for installing and fixing the anchor bolt (17), the upper end of the anchor bolt (17) penetrates into the inner side of the installation slot (14), the outer surface of the anchor bolt (17) is threadedly connected with a locking sleeve (26), the inner side of the anchor bolt (17) is provided with a limiting assembly for limiting the locking sleeve (26) and the anchor rod; The upper side of the locking sleeve (26) is in contact with a compression sleeve (28), the upper surface of the compression sleeve (28) is provided with a clamping assembly, the clamping assembly comprises a guide groove (39) opened on the upper side of the compression sleeve (28), a friction block (30) is slidably connected to the inner surface of the guide groove (39), the friction block (30) is in contact with the outer surface of the anchor bolt (17), and the clamping assembly is used for clamping and fixing the anchor bolt (17); The upper side of the compression sleeve (28) is provided with an anti-falling assembly, the anti-falling assembly comprises a notch (29) opened on the outer surface of the compression sleeve (28), the outer surface of the upper end of the compression sleeve (28) is in sliding contact with a pressing rod (38), and the anti-falling assembly is used to prevent the locking sleeve (26) from falling off; The inner side of the support base (11) is provided with an extrusion assembly, the extrusion assembly comprises a first cavity (33) embedded in the inner side of the support base (11), the first cavity (33) is cylindrical, the inner surface of the first cavity (33) is slidably connected with a movable sleeve (34), and the inner surface of the first cavity (33) is rotatably connected with a support rod (40) at the rear end, the support rod (40) penetrates to the outer side of the support base (11) and is rotatably connected with the support base (11); The front end of the support rod (40) is fixedly connected with a rotating piece (35), the front end of the rotating piece (35) is provided with a one-shaped notch, the support rod (40) penetrates through the front and rear ends of the movable sleeve (34) and is screw transmission connected with the movable sleeve (34), the rear end of the movable sleeve (34) is fixedly connected with a top block (36), and the top block (36) is conical; The anti-falling assembly further comprises a second cavity (37) embedded in the inner side of the support base (11), the lower end of the second cavity (37) penetrates into the inner side of the installation slot (14), the first cavity (33) and the second cavity (37) are vertically distributed, the inner surface of the second cavity (37) is slidably connected with a pressing rod (38), the lower end of the pressing rod (38) is arc-shaped, and the upper end of the pressing rod (38) is in contact with the outer surface of the top block (36); The notch (29) is arc-shaped, the number of the notch (29) is several groups and is arranged in a ring array, the upper end of the locking sleeve (26) is provided with a clamping groove (27), the clamping groove (27) is semicylindrical, and the number of the clamping groove (27) is several groups and is arranged in a ring array.

2. A vertical machining center bed according to claim 1, characterized in that: The support seat (11) is embedded with a through hole (41) on the inner side, the upper end of the through hole (41) penetrates into the inner side of the mounting groove (14), the number of the mounting groove (14) is four groups and the adjacent two groups are symmetrically distributed, the upper end of the outer surface of the mounting groove (14) is arc-shaped, and the lower end of the anchor bolt (17) is fixed with the ground floor (13).

3. A vertical machining center bed according to claim 2, characterized in that: The outer surface of the anchor bolt (17) is provided with a gasket (15), the gasket (15) is circular, the gasket (15) is located between the support seat (11) and the ground floor (13) and is in surface contact with the support seat (11) and the ground floor (13), the number of the anchor bolt (17) is four groups and is symmetrically distributed, and the upper end of the outer surface of the support seat (11) is fixedly connected with the connecting seat (12).

4. A vertical machining center bed according to claim 3, characterized in that: The inner side of the anchor bolt (17) is embedded with a catheter (20), the inner surface of the catheter (20) is fixedly connected with a guide block (24), the guide block (24) is circular, the middle part of the guide block (24) is slidingly connected with a connecting rod (21), the upper end of the connecting rod (21) is fixedly connected with a pressing plate (25), the upper end of the outer surface of the pressing plate (25) is magnetically connected with a magnet (42), the upper end of the magnet (42) is fixedly connected with the inner surface of the upper side of the mounting groove (14), the lower end of the connecting rod (21) is fixedly connected with an elastic plate (22), and the elastic plate (22) is in a U-shaped structure.

5. A vertical machining center bed according to claim 4, characterized in that: The inner side of the anchor bolt (17) is provided with a guide channel (19), the left and right ends of the guide channel (19) penetrate into the inner side of the support seat (11), the guide channel (19) is vertically distributed with the catheter (20), the inner side of the guide channel (19) is slidingly connected with a limiting rod (18), the number of the limiting rod (18) is two groups and is symmetrically distributed left and right, the left and right ends of the elastic plate (22) are fixedly connected with the limiting rod (18), and the two groups of limiting rods (18) are fixedly connected with a spring (23) therebetween.

6. A vertical machining center bed according to claim 5, characterized in that: The outer surface of the anchor bolt (17) is conical on the upper side, the inner surface of the guide groove (39) is helically rotatably connected with a spiral sleeve (31), the lower end of the outer surface of the spiral sleeve (31) is rotatably connected with a friction block (30), the number of the friction block (30) is several groups and is annularly arrayed, the cross section of the friction block (30) is in a trapezoidal structure, the guide groove (39) is circular, a stop block (32) is arranged between the spiral sleeve (31) and the anchor bolt (17), the stop block (32) is in surface contact with the spiral sleeve (31) and the anchor bolt (17) respectively, and the upper end of the outer surface of the friction block (30) is in surface contact with the stop block (32).

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