Clamping and fixing base for vertical machining center

Abstract

The utility model belongs to the technical field of machining centers, and particularly relates to a clamping fixing base for a vertical machining center, which comprises a machining center body, a fixing base and a workbench, the fixing base is mounted at the top of the machining center body, the workbench is mounted at the top of the fixing base, and an auxiliary device is arranged at the top of the fixing base. The auxiliary device comprises a damping unit and a clamping unit, the damping unit is arranged on the top of the fixed base, and the clamping unit is arranged on the top of the workbench. According to the clamping and fixing base for the vertical machining center, by arranging the damping unit, when a workpiece vibrates during machining, a workbench extrudes a connecting plate to push a connecting block to extrude a spring and a damping rod, so that vibration of the workbench and the workpiece is reduced, and then the machining precision is improved; the problems that in the workpiece machining process of a machining center proposed in the background technology, vibration generated during machining cannot be absorbed, and therefore the machining precision of workpieces and the service life of equipment are affected are solved.

Description

Technical Field

[0001] This utility model relates to the field of machining center technology, specifically to a clamping and fixing base for a vertical machining center. Background Technology

[0002] The clamping and fixing base of a vertical machining center is an important mechanical component, mainly used to stabilize and fix the workpiece during the machining process to ensure machining accuracy and efficiency. The fixing base used in vertical machining centers is usually made of high-strength materials, such as cast iron or steel, with good wear resistance and vibration resistance. Its design should be able to withstand the weight of the workpiece and provide sufficient friction to fix the workpiece.

[0003] When existing devices clamp and fix workpieces using two sets of clamping plates, they cannot clamp and fix workpieces with irregular outer contours. Furthermore, if there is oil, rust, or other impurities on the surface of the workpiece, the clamping plates will slip or fail to make sufficient contact, resulting in the workpiece not being firmly fixed to the clamping plates.

[0004] As disclosed in CN221495166U, a clamping and fixing base for a vertical machining center can be set on the base. Multiple clamping components can be set on the base, and the clamping components are composed of mounting base, T-shaped insert A, adjusting screw, pressure rod, adjusting block and support block and other components. The installation position and angle of the pressure rod can be adjusted in multiple directions according to the workpiece of different size and shape, so as to be able to fix workpieces of various sizes and shapes. The entire clamping component can be easily assembled and disassembled on the base without changing the original base structure of the vertical machining center, and has high applicability.

[0005] However, this device cannot absorb the vibrations generated during the machining process in the machining center, which affects the machining accuracy of the workpiece and the life of the equipment.

[0006] Therefore, we urgently need to provide a clamping and fixing base for vertical machining centers. Utility Model Content

[0007] The purpose of this utility model is to provide a clamping and fixing base for a vertical machining center, so as to solve the problem mentioned in the background art that the machining center cannot absorb the vibration generated during the machining process, thereby affecting the machining accuracy of the workpiece and the life of the equipment.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a clamping and fixing base for a vertical machining center, comprising a machining center body, a fixing base, and a worktable. The fixing base is installed on the top of the machining center body, and the worktable is installed on the top of the fixing base. An auxiliary device is provided on the top of the fixing base, and the auxiliary device includes a shock-absorbing unit and a clamping unit.

[0009] The shock absorption unit is located on the top of the fixed base, and the clamping unit is located on the top of the workbench.

[0010] The damping unit includes a fixed block, a spring, a damping rod, a connecting block, a connecting plate, a bracket, and a protrusion. The fixed block is fixedly installed around the top of the fixed base. The spring is fixedly installed on one side of the two adjacent fixed blocks. The damping rod is installed inside the spring. The connecting block is fixedly installed at the end of the spring away from the fixed block. One end of the connecting plate is rotatably connected to the outside of the connecting block. The bracket is fixedly installed around the bottom of the workbench. The protrusion is fixedly installed inside the connecting block.

[0011] Preferably, the end of the connecting plate away from the connecting block is rotatably connected to the bracket. When the machining center body processes the workpiece on the top of the worktable, the worktable presses the connecting plate to push the connecting block to press the spring and damping rod, thereby reducing the vibration of the worktable and improving the machining accuracy of the workpiece.

[0012] Preferably, the outer and inner surfaces of the fixed base are provided with limiting grooves, and the protrusion is slidably connected in the limiting grooves, thereby limiting the movement of the connecting block through the limiting grooves.

[0013] Preferably, the clamping unit includes a mounting plate, a first threaded rod, a limiting rod, a movable plate, a support frame, a second threaded rod, and a pressure plate. The mounting plate is fixedly installed around the top of the worktable. The first threaded rod is rotatably connected to the inside of the two front mounting plates. The limiting rod is fixedly installed on one side of the two rear mounting plates adjacent to each other. The movable plate is installed outside the first threaded rod and the limiting rod and is symmetrically distributed on the left and right sides of the worktable. The support frame is fixedly installed on the top of the movable plate. The second threaded rod is threadedly connected to the inside of the support frame. The pressure plate is fixedly installed at the bottom of the second threaded rod.

[0014] Preferably, the outer surface of the threaded rod has external threads in opposite directions on both sides, and the connection between the movable plate and the threaded rod has an internal thread. The movable plate is threaded to the outside of the threaded rod. By rotating the threaded rod and threading it to the movable plate, the two movable plates can move along the limiting rod. The distance between the two movable plates can be adjusted to clamp workpieces of different sizes.

[0015] Preferably, a rubber pad is installed at the bottom of the pressure plate to prevent scratches on the workpiece surface when the pressure plate clamps the workpiece, thereby improving the workpiece processing quality.

[0016] Preferably, the fixed base has weight-reducing grooves on both the front and rear sides to reduce the weight of the fixed base.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This vertical machining center uses a clamping and fixing base. By setting up a vibration damping unit, when the workpiece vibrates during machining, the worktable squeezes the connecting plate to push the connecting block to squeeze the spring and damping rod, thereby reducing the vibration of the worktable and the workpiece, and thus improving the machining accuracy. This solves the problem in the background technology that the machining center cannot absorb the vibration generated during the machining process, which affects the machining accuracy of the workpiece and the life of the equipment.

[0019] 2. This vertical machining center uses a clamping and fixing base. By setting up a clamping unit, the rotating threaded rod is threadedly connected to the moving plate, thereby causing the left and right moving plates to move along the limit rod. The distance between the two moving plates can be adjusted to clamp workpieces of different sizes. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the connection between the fixed base and the workbench of this utility model;

[0022] Figure 3 This is an exploded view of the shock absorption unit structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the connecting block structure of this utility model.

[0024] In the diagram: 1. Machining center body; 2. Fixed base; 3. Worktable; 401. Fixing block; 402. Spring; 403. Damping rod; 404. Connecting block; 405. Connecting plate; 406. Bracket; 407. Protrusion; 501. Mounting plate; 502. Threaded rod one; 503. Limiting rod; 504. Moving plate; 505. Support frame; 506. Threaded rod two; 507. Pressure plate. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1-4 This utility model provides a technical solution:

[0027] Example 1:

[0028] A clamping and fixing base for a vertical machining center includes a machining center body 1, a fixing base 2, and a worktable 3. The fixing base 2 is installed on the top of the machining center body 1, and the worktable 3 is installed on the top of the fixing base 2. An auxiliary device is provided on the top of the fixing base 2, which includes a shock absorption unit and a clamping unit.

[0029] The shock absorption unit is located on the top of the fixed base 2, and the clamping unit is located on the top of the worktable 3.

[0030] The damping unit includes a fixed block 401, a spring 402, a damping rod 403, a connecting block 404, a connecting plate 405, a bracket 406, and a protrusion 407. The fixed blocks 401 are fixedly installed around the top of the fixed base 2. The spring 402 is fixedly installed on one side adjacent to the two fixed blocks 401. The damping rod 403 is installed inside the spring 402. The connecting block 404 is fixedly installed at the end of the spring 402 away from the fixed block 401. One end of the connecting plate 405 is rotatably connected to the outside of the connecting block 404. The end of the connecting plate 405 away from the connecting block 404 is connected to... The bracket 406 is rotatably connected. When the machining center body 1 processes the workpiece on the top of the worktable 3, the worktable 3 presses the connecting plate 405 to push the connecting block 404 to compress the spring 402 and the damping rod 403, thereby reducing the vibration of the worktable 3 and improving the machining accuracy of the workpiece. The bracket 406 is fixedly installed around the bottom of the worktable 3, and the protrusion 407 is fixedly installed inside the connecting block 404. The outer and inner surfaces of the fixed base 2 are provided with limit grooves, and the protrusion 407 is slidably connected in the limit grooves. The limit grooves limit the movement of the connecting block 404.

[0031] Example 2: Based on Example 1: The clamping unit includes a mounting plate 501, a threaded rod 502, a limiting rod 503, a moving plate 504, a support frame 505, a threaded rod 506, and a pressure plate 507. The mounting plate 501 is fixedly installed around the top of the workbench 3. The threaded rod 502 is rotatably connected to the interior of the two front mounting plates 501. The outer surface of the threaded rod 502 has external threads in opposite directions on the left and right sides. The moving plate 504 has an internal thread at the connection with the threaded rod 502, and the moving plate 504 is threaded to the outside of the threaded rod 502. By rotating the threaded rod 502 and the moving plate 504, the two moving plates 504 move along the limiting rod 503. The distance between the two movable plates 504 can be adjusted to clamp workpieces of different sizes. The limiting rod 503 is fixedly installed on the adjacent side of the two rear mounting plates 501. The limiting rod 503 limits the movement of the movable plate 504. The movable plate 504 is installed on the outside of the threaded rod 1 502 and the limiting rod 503 and is symmetrically distributed on the left and right sides of the worktable 3. The support frame 505 is fixedly installed on the top of the movable plate 504. The threaded rod 2 506 is threadedly connected to the inside of the support frame 505. The pressure plate 507 is fixedly installed on the bottom of the threaded rod 2 506. The bottom of the pressure plate 507 is equipped with a rubber pad. The rubber pad prevents the pressure plate 507 from scratching the surface of the workpiece when clamping the workpiece, thereby improving the workpiece processing quality.

[0032] Example 3: Based on Example 1: Weight reduction grooves are provided on the front and rear sides of the fixed base 2 to reduce the weight of the fixed base 2.

[0033] In use, the workpiece to be processed is placed on top of the worktable 3. Then, the threaded rod 502 is rotated and threaded to the moving plate 504, so that the two moving plates 504 on the left and right move along the limit rod 503 to the appropriate position. Then, the threaded rod 506 is rotated and threaded to the support frame 505, so that the pressure plate 507 moves down and abuts against the top of the workpiece, clamping the workpiece. Then, the workpiece is processed by the machining center body 1. When the workpiece vibrates during processing, the worktable 3 presses the connecting plate 405 to push the connecting block 404 to press the spring 402 and the damping rod 403, thereby reducing the vibration of the worktable 3 and the workpiece, and thus improving the processing accuracy.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A clamping and fixing base for a vertical machining center, comprising a machining center body (1), a fixing base (2) and a worktable (3), the fixing base (2) is installed on the top of the machining center body (1), and the worktable (3) is installed on the top of the fixing base (2), characterized in that: The top of the fixed base (2) is provided with an auxiliary device, which comprises a damping unit and a clamping unit; The damping unit is arranged on the top of the fixed base (2), and the clamping unit is arranged on the top of the workbench (3); The damping unit comprises a fixed block (401), a spring (402), a damping rod (403), a connecting block (404), a connecting plate (405), a bracket (406) and a protruding block (407), the fixed block (401) is fixedly installed on the top of the fixed base (2) around, the spring (402) is fixedly installed on the side adjacent to the left and right two fixed blocks (401), the damping rod (403) is installed on the inner side of the spring (402), the connecting block (404) is fixedly installed on the end of the spring (402) away from the fixed block (401), one end of the connecting plate (405) is rotatably connected to the outer side of the connecting block (404), the bracket (406) is fixedly installed on the bottom of the workbench (3) around, and the protruding block (407) is fixedly installed on the inner side of the connecting block (404).

2. The clamping and fixing base for vertical machining center according to claim 1, characterized in that: One end of the connecting plate (405) away from the connecting block (404) is rotatably connected with the bracket (406).

3. The clamping and fixing base for vertical machining center according to claim 1, characterized in that: The outer surface and the inner surface of the fixed base (2) are provided with limiting grooves, and the protruding block (407) is slidably connected in the limiting grooves.

4. The clamping and fixing base for vertical machining center according to claim 1, characterized in that: The clamping unit comprises an installation plate (501), a threaded rod one (502), a limiting rod (503), a moving plate (504), a support frame (505), a threaded rod two (506) and a pressing plate (507), the installation plate (501) is fixedly installed on the top of the workbench (3) around, the threaded rod one (502) is rotatably connected inside the front left and right two installation plates (501), the limiting rod (503) is fixedly installed on the side adjacent to the rear two installation plates (501), the moving plate (504) is installed on the outer side of the threaded rod one (502) and the limiting rod (503) and is symmetrically distributed on the left and right sides of the workbench (3), the support frame (505) is fixedly installed on the top of the moving plate (504), the threaded rod two (506) is screwedly connected inside the support frame (505), and the pressing plate (507) is fixedly installed on the bottom of the threaded rod two (506).

5. The clamping and fixing base for vertical machining center according to claim 4, characterized in that: The outer surface of the threaded rod one (502) is provided with opposite external threads on the left and right sides, and the moving plate (504) is provided with internal threads at the connection with the threaded rod one (502), and the moving plate (504) is screwedly connected on the outer side of the threaded rod one (502).

6. The clamping and fixing base for vertical machining center according to claim 4, characterized in that: The bottom of the pressing plate (507) is provided with a rubber pad.

7. The clamping and fixing base for vertical machining center according to claim 1, characterized in that: The front and rear sides of the fixed base (2) are provided with weight reduction grooves.

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