Machine tool adjusting sizing block
By designing a detachable support platform and lifting column structure, the problems of limited adjustment range of machine tool leveling irons and easy damage to the support platform were solved, achieving low-cost replacement and high-precision adjustment, and expanding the scope of application.
Patent Information
- Application Number
- CN202520550260.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-03-27
AI Technical Summary
The existing machine tool leveling pads have a limited range of support adjustment, and the fixed support structure is prone to damage, resulting in limited installation environment and high replacement costs.
Design a machine tool adjusting pad including a pad housing, a lifting column, and a detachable support platform. The lifting column and the detachable support platform are detachably connected by long bolts. The detachable support platform structure, combined with a wedge block and screw adjustment system, enables height adjustment and precise positioning.
The system allows for the replacement of detachable support platforms, reducing replacement costs, expanding the adjustment range, and improving adjustment accuracy and flexibility of use.
Smart Images

Figure CN223740486U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shim technology, specifically to a machine tool adjustment shim. Background Technology
[0002] Adjustable shims are tools used for supporting and leveling machine tools. They typically adjust the vertical height of the inclined blocks by adjusting their horizontal position, thus leveling the machine tool. However, due to the high precision requirements of machine tool installation, existing shims have limited adjustment ranges, restricting their installation and use in certain environments. Furthermore, the fixed support structure of the shims, which directly contacts and bears the machine tool's vibrations, can lead to damage or deformation over time, necessitating complete replacement of the entire shim, which is costly. Utility Model Content
[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a machine tool adjustment pad to solve the shortcomings of the prior art.
[0004] The purpose of this utility model is achieved through the following technical solution: a machine tool adjusting shim, including a shim housing, a lifting column and a detachable support platform, wherein the lifting column is slidably installed on the shim housing, and a support window for the lifting column to pass through is provided on the top of the shim housing, and the detachable support platform is detachably connected to the lifting column by long bolts.
[0005] Furthermore, a rectangular groove is provided at the bottom of the detachable support platform, and a through hole is provided on the side wall of the detachable support platform, the through hole communicating with the rectangular groove. A threaded hole is provided on the inner wall of the rectangular groove, the threaded hole being coaxially arranged with the through hole. A connecting hole is provided through the side wall of the lifting column. When the top of the lifting column is fitted into the rectangular groove, the long bolt passes through the through hole and the connecting hole in sequence, and the threaded bolt is fitted into the threaded hole.
[0006] Furthermore, a positioning groove is provided on the top of the pad housing around the support window. When the bottom of the detachable support platform is fitted into the positioning groove, the rectangular groove is located on the lifting path of the lifting column.
[0007] Furthermore, the side wall of the pad housing is provided with a positioning groove, the positioning groove is connected to the positioning slot, the positioning groove passes through the top of the pad housing, and the bottom of the detachable support platform is fixed with a positioning strip. When the detachable support platform is located in the positioning slot and the positioning strip is located in the positioning groove, the lifting column can be adapted to the rectangular slot.
[0008] Furthermore, a driving cavity is provided inside the pad housing, and the support window is connected to the driving cavity. An upper wedge block and a lower wedge block are matched vertically inside the driving cavity. The inclined surface of the upper wedge block matches the inclined surface of the lower wedge block. The end of the lifting column away from the detachable support platform is connected to the upper wedge block, and the lower wedge block has a degree of freedom to move in the horizontal direction.
[0009] Furthermore, a screw is horizontally arranged inside the drive cavity, the screw is rotatably connected to the pad housing, and the lower wedge block is threadedly fitted onto the screw, with both sides of the lower wedge block contacting the sidewall of the pad housing.
[0010] Furthermore, one end of the screw protrudes from the housing of the pad and is fixedly connected to an adjusting nut.
[0011] The beneficial effects of this utility model are:
[0012] The detachable support platform uses a detachable connection, which makes it easy to replace the detachable support platform without replacing the entire shim, thus reducing costs. At the same time, it can install detachable support platforms of corresponding thickness according to the usage environment, increasing the adjustment range of the shim and making it widely applicable. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the internal structure of a machine tool adjusting pad according to the present invention;
[0014] Figure 2 This is a schematic diagram of the internal structure of a detachable support platform in a machine tool adjusting pad according to the present invention;
[0015] In the diagram, 1-shield housing, 2-lifting column, 3-detachable support platform, 4-support window, 5-long bolt, 6-rectangular groove, 7-through hole, 8-threaded hole, 9-connecting hole, 10-positioning groove, 11-positioning slide, 12-positioning strip, 13-drive cavity, 14-upper wedge block, 15-lower wedge block, 16-screw, 18-adjusting nut. Detailed Implementation
[0016] Example 1
[0017] like Figure 1 and Figure 2As shown, a machine tool adjusting shim includes a shim housing 1, a lifting column 2, and a detachable support platform 3. The lifting column 2 is slidably mounted on the shim housing 1. The top of the shim housing 1 has a support window 4 through which the lifting column 2 passes. The detachable support platform 3 is detachably connected to the lifting column 2 by long bolts 5. The detachable support platform 3 can be removed and replaced by removing the long bolts 5. When the detachable support platform 3 is deformed or damaged, only the detachable support platform 3 needs to be replaced, which reduces costs. Furthermore, when the lifting range of the shim cannot meet the usage requirements, the detachable support platform 3 with a larger thickness can be replaced to meet the support requirements and improve the adjustment range of the shim. Its application range is wide.
[0018] Example 2
[0019] Based on Example 1, such as Figure 1 and Figure 2 As shown, a drive cavity 13 is provided inside the pad housing 1, and a support window 4 connects to the drive cavity 13. An upper wedge block 14 and a lower wedge block 15 are matched vertically inside the drive cavity 13. The inclined surface of the upper wedge block 14 matches the inclined surface of the lower wedge block 15. The end of the lifting column 2 away from the detachable support platform 3 is connected to the upper wedge block 14. The lower wedge block 15 has the freedom to move in the horizontal direction. A screw 16 is horizontally provided inside the drive cavity 13. The screw 16 is rotatably connected to the pad housing 1, and the lower wedge block 15 is threaded onto the screw 16. Both sides of the lower wedge block 15 are in contact with the pad. On the side wall of housing 1, one end of screw 16 passes through the pad housing 1 and is fixedly connected to adjusting nut 18. In use, the machine tool is lifted by jack, and adjusting nut 18 is turned by wrench, which drives screw 16 to rotate, causing lower wedge block 15 to move linearly along the axis of screw 16. This causes lower wedge block 15 to lift upper wedge block 14, or causes upper wedge block 14 to move downward under its own weight, thereby causing upper wedge block 14 to drive lifting column 2 to move up and down to adjust the height of detachable support platform 3. Adjustment is carried out by screw and nut pair, which has high adjustment accuracy.
[0020] Example 3
[0021] Based on Example 2, such as Figure 1As shown, the bottom of the detachable support platform 3 has a rectangular groove 6, and the side wall of the detachable support platform 3 has a through hole 7 that connects to the rectangular groove 6. The inner wall of the rectangular groove 6 has a threaded hole 8 that is coaxial with the through hole 7. The side wall of the lifting column 2 has a connecting hole 9 that extends through it. When the top of the lifting column 2 is fitted into the rectangular groove 6, the long bolt 5 passes through the through hole 7 and the connecting hole 9 in sequence and is threaded into the threaded hole 8. When installing the detachable support platform 3, the detachable support platform 3 is aligned with the lifting column 2 so that the top of the lifting column 2 is fitted into the rectangular groove 6. Then, the long bolt 5 is inserted from the side of the detachable support platform 3. The tail of the long bolt 5 passes through the through hole 7 and the connecting hole 9 is threaded into the threaded hole 8, thus completing the connection between the detachable support platform 3 and the lifting column 2. At the same time, the installation position is set on the side, which allows the detachable support platform 3 to be replaced in a small space. In the later replacement, the detachable support platform 3 can be replaced and installed without removing the shim.
[0022] Example 4
[0023] Based on Example 3, such as Figure 1 As shown, a positioning groove 10 is provided on the top of the pad housing 1 around the support window 4. When the bottom of the detachable support platform 3 is fitted into the positioning groove 10, the rectangular groove 6 is located on the lifting path of the lifting column 2. A positioning slide groove 11 is provided on the side wall of the pad housing 1, which connects to the positioning groove 10 and passes through the top of the pad housing 1. A positioning strip 12 is fixed to the bottom of the detachable support platform 3. When the detachable support platform 3 is located in the positioning groove 10 and the positioning strip 12 is located in the positioning slide groove 11, the lifting column 2 can be fitted into the rectangular groove 6. In order for the lifting column 2 to be fitted into the rectangular groove 6, the through hole 7 and the connecting hole are connected. The 9-axis design incorporates a positioning groove 10 and a positioning slide 11. When installing the detachable support platform 3, the positioning strip 12 slides into the positioning slide 11 to achieve radial positioning of the detachable support platform 3. Simultaneously, the detachable support platform 3 is positioned within the positioning groove 10 to achieve axial positioning, thus accurately positioning the installation position of the detachable support platform 3. Then, the lifting column 2 moves upward and inserts into the rectangular groove 6, causing the lifting column 2 to lift the detachable support platform 3, indicating that the lifting column 2 is fitted into the rectangular groove 6. At this time, the through hole 7 and the connecting hole 9 are in a coaxial position. Finally, the long bolt 5 is installed to connect the detachable support platform 3 and the lifting column 2.
Claims
1. A machine tool adjustment shim, characterized by, Including the iron shell (1), the lifting column (2) and the detachable support table (3), the lifting column (2) is slidably installed on the iron shell (1), the top of the iron shell (1) is provided with a support window (4) for the lifting column (2) to pass out, and the detachable support table (3) is detachably connected with the lifting column (2) through long bolts (5).
2. A machine tool adjustment shim according to claim 1, characterised in that, The bottom of the detachable support table (3) is provided with a rectangular groove (6), the sidewall of the detachable support table (3) is provided with a through hole (7), the through hole (7) is communicated with the rectangular groove (6), the inner wall of the rectangular groove (6) is provided with a threaded hole (8), the threaded hole (8) is coaxially arranged with the through hole (7), the sidewall of the lifting column (2) is provided with a connecting hole (9), when the top of the lifting column (2) is adapted in the rectangular groove (6), the long bolt (5) is sequentially threaded through the through hole (7), the connecting hole (9) and is adapted in the threaded hole (8).
3. A machine tool adjustment shim according to claim 2, characterised in that, The top of the iron shell (1) is provided with a positioning groove (10) around the support window (4), when the bottom of the detachable support table (3) is adapted in the positioning groove (10), the rectangular groove (6) is located on the lifting path of the lifting column (2).
4. A machine tool adjustment shim according to claim 3, characterised in that, The sidewall of the iron shell (1) is provided with a positioning sliding groove (11), the positioning sliding groove (11) is communicated with the positioning groove (10), the positioning sliding groove (11) passes through the top of the iron shell (1), the bottom of the detachable support table (3) is fixedly provided with a positioning strip (12), when the detachable support table (3) is located in the positioning groove (10) and the positioning strip (12) is located in the positioning sliding groove (11), the lifting column (2) can be adapted in the rectangular groove (6).
5. The machine tool adjustment shim of claim 1, wherein, The iron shell (1) is provided with a driving cavity (13), the support window (4) is communicated with the driving cavity (13), the driving cavity (13) is provided with an upper wedge block (14) and a lower wedge block (15) matched in up and down directions, the slope of the upper wedge block (14) is matched with the slope of the lower wedge block (15), one end of the lifting column (2) away from the detachable support table (3) is connected with the upper wedge block (14), and the lower wedge block (15) has a freedom degree of moving along the horizontal direction.
6. A machine tool adjustment shim according to claim 5, wherein, The driving cavity (13) is horizontally provided with a screw rod (16), the screw rod (16) is rotationally connected with the iron shell (1), the lower wedge block (15) is threadedly sleeved on the screw rod (16), and the sidewalls of the iron shell (1) are contacted by the two sides of the lower wedge block (15).
7. A machine tool adjustment shim according to claim 6, characterised in that, One end of the screw rod (16) passes out of the iron shell (1) and is fixedly connected with an adjusting nut (18).