A support frame for angular contact ball bearings of machine tools
By incorporating adjustment and lifting mechanisms, the problems of damage and cumbersome operation caused by the need for hammering to adjust traditional bearing support frames are solved. This enables precise fine-tuning and height adjustment, improving installation accuracy and convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU CRONOS SPECIAL BEARING MFG
- Filing Date
- 2025-08-11
- Publication Date
- 2026-06-23
AI Technical Summary
Traditional bearing support frames require frequent tapping and adjustment during installation, which can damage the bottom of the support frame and the base, affecting adjustment accuracy and making the operation cumbersome.
The bearing support frame is finely adjusted by rotating the adjusting bolt and the convex ring in conjunction with the limit plate, and the height is adjusted by the lifting mechanism to avoid damage from impacts and simplify operation.
It enables precise fine-tuning and height adjustment of the bearing support frame, improves installation accuracy and ease of operation, avoids damage from knocking, and simplifies the adjustment process.
Smart Images

Figure CN224396952U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of bearing support brackets, and in particular relates to a support bracket for angular contact ball bearings used in machine tools. Background Technology
[0002] Bearing support frames are commonly used to fix and support bearings. They have a wide range of applications in machine tools, where bearings are typically connected to lead screws, and the bearing support frame provides support for the bearing.
[0003] Traditional bearing support brackets require adjustment during installation because the bearing needs to be connected to the lead screw. This adjustment ensures the stability of the lead screw after installation. Since high precision is required during adjustment, traditional methods often involve tapping. This method can easily damage the bottom of the support bracket and the base, affecting the adjustment accuracy. Furthermore, it requires frequent tapping adjustments, making the operation cumbersome and inefficient. Utility Model Content
[0004] The purpose of this utility model is to provide a support frame for angular contact ball bearings used in machine tools. By setting an adjustment mechanism, specifically, after positioning the bearing support frame on the base, and then locking the limiting plate onto the adjusting bolt, rotating the adjusting bolt will cause the limiting plate to engage with the convex ring, pulling the fixing block to move. The bearing support frame will then move accordingly, allowing for fine-tuning of its left and right positions. This method allows for more precise adjustment without the need for tapping, avoiding damage from tapping. Furthermore, this adjustment method is simpler and more convenient, solving the problem that traditional bearing support frames typically require tapping for adjustment, which can easily damage the bottom of the support frame and the base, affecting the adjustment accuracy, and requires frequent and cumbersome tapping adjustments.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model relates to a support bracket for an angular contact ball bearing used in machine tools, comprising a base, a bearing support bracket positioned on the top of the base, a fixing block 1 fixedly connected to the right side of the bearing support bracket, the fixing block 1 having a mating groove inside, and further comprising:
[0007] An adjusting mechanism is located on the right side of the bearing support frame. The adjusting mechanism includes a second fixing block fixedly connected to the top of the base. An adjusting bolt is threadedly connected inside the second fixing block. A protruding ring is fixedly connected to the outer end of the first adjusting bolt. A limiting plate is provided on the side of the first adjusting bolt facing the first fixing block. A mating hole is opened on the left side of the first adjusting bolt. A mating ring is fixedly connected to the right side of the limiting plate. A locking screw is inserted inside the limiting plate.
[0008] The lifting mechanism is provided in two sets, which are respectively located on the front and back of the base. The lifting mechanism is used to adjust the height of the bearing support frame.
[0009] The left end of the adjusting bolt extends into the mating groove on the fixing block, and the base is used to connect and fix with the machine tool.
[0010] Furthermore, the right side of the limiting plate is connected to the mating hole on the left side of the adjusting bolt through the mating ring, the locking screw is threadedly connected to the adjusting bolt, and the convex ring cooperates with the limiting plate to clamp and fix the fixing block. The limiting plate is detachable, so that the adjusting bolt will not affect the bearing support frame when the bearing support frame is installed.
[0011] Furthermore, two positioning blocks are fixedly connected to the top of the base, two positioning grooves are opened at the bottom of the bearing support frame, and slots are opened at all four corners of the bearing support frame. Two trapezoidal blocks are fixedly connected to the bottom of the bearing support frame. The bearing support frame is positioned on the base, and the trapezoidal blocks at the bottom of the bearing support frame are inserted into the inner grooves. At the same time, the bottom of the bearing support frame will be inserted into the positioning blocks through the positioning grooves, thereby positioning the bearing support frame. Then, bolts are inserted into the slots and the bolts are threaded to the base.
[0012] The bearing support frame is connected to a positioning block at its bottom via a positioning groove, and the positioning block is used to position and install the bearing support frame.
[0013] Furthermore, the lifting mechanism includes an inner groove inside the base, a push block slidably connected inside the inner groove, a limit groove being formed on the side of the push block away from the bearing support frame, an adjusting bolt two being rotatably connected in the limit groove on the push block, and a convex shaft being fixedly connected to the side of the adjusting bolt two facing the push block; when the adjusting bolt two rotates, it will drive the push block to move smoothly forward or backward through the convex shaft. Since the outer side of the push block is in contact with the inner groove, the push block can move in a straight line.
[0014] The second adjusting bolt passes through the base and extends to the outside, and the second adjusting bolt is threadedly connected to the base.
[0015] Furthermore, the outer side of the push block is slidably connected to the inner wall of the inner groove, the bottom of the trapezoidal block facing the push block is set with an inclined surface, the top of the push block is in contact with the inclined surface on the trapezoidal block, the convex shaft is rotatably connected in the limiting groove, and the convex shaft is used to limit the adjusting bolt two on the push block; when the push block contacts the trapezoidal block and pushes the trapezoidal block, the trapezoidal block will tilt upwards, and drive the bearing support frame to tilt upwards together, thereby adjusting the height of the bearing support frame.
[0016] Furthermore, the trapezoidal block is inserted into the base through the inner groove. After the trapezoidal block enters the inner groove, there is space between the left and right sides of the trapezoidal block and the inner wall of the inner groove. Since there is space between the left and right sides of the trapezoidal block and the inner wall of the inner groove, the bearing support frame can be moved smoothly when adjusting the left and right positions of the bearing support frame.
[0017] This utility model has the following beneficial effects:
[0018] This utility model features an adjustment mechanism. Specifically, after positioning the bearing support frame on the base, the limiting plate is locked onto the adjusting bolt. Rotating the adjusting bolt causes the limiting plate to engage with the convex ring, pulling the fixing block to move. The bearing support frame then moves accordingly, allowing for fine-tuning of the left and right positions. This method provides more precise adjustment without the need for tapping, thus avoiding damage from tapping. Furthermore, this adjustment method is simpler and more convenient to operate.
[0019] This utility model incorporates a lifting mechanism. Specifically, a wrench rotates the second adjusting bolt, which in turn drives a push block forward or backward via a convex shaft. When the push block pushes the trapezoidal block, the trapezoidal block tilts upward, causing the bearing support frame to tilt upward as well, thereby adjusting the height of the bearing support frame. This allows for multi-directional adjustment, resulting in higher precision during subsequent screw installation. Furthermore, this method enables more flexible adjustment of the bearing support frame's position.
[0020] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0023] Figure 2 This is a schematic diagram of the top structure of the base of this utility model;
[0024] Figure 3 This is a schematic diagram of the overall structure of the adjusting bolt of this utility model;
[0025] Figure 4 This is a schematic diagram of the bottom structure of the bearing support frame of this utility model;
[0026] Figure 5 This is a schematic diagram of the overall structure of the pusher block of this utility model.
[0027] The attached diagram lists the components represented by each number as follows:
[0028] 1. Base; 11. Bearing support frame; 111. Groove; 112. Fixing block one; 113. Connecting groove; 114. Trapezoidal block; 115. Positioning groove; 12. Positioning block; 2. Adjusting mechanism; 21. Fixing block two; 22. Adjusting bolt one; 221. Connecting hole; 23. Convex ring; 24. Limiting plate; 241. Connecting ring; 242. Locking screw; 3. Lifting mechanism; 31. Inner groove; 32. Push block; 33. Limiting groove; 34. Adjusting bolt two; 35. Convex shaft. Detailed Implementation
[0029] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0030] Please see Figures 1-5 As shown, this utility model is a support frame for an angular contact ball bearing used in machine tools, including a base 1, a bearing support frame 11 positioned on the top of the base 1, a fixing block 112 fixedly connected to the right side of the bearing support frame 11, and a mating groove 113 formed inside the fixing block 112, and also including:
[0031] Adjustment mechanism 2 is located on the right side of bearing support frame 11. Adjustment mechanism 2 includes a fixing block 21 fixedly connected to the top of base 1. An adjusting bolt 22 is threaded inside the fixing block 21. A protruding ring 23 is fixedly connected to the outer end of the adjusting bolt 22. A limiting plate 24 is provided on the side of the adjusting bolt 22 facing the fixing block 112. A mating hole 221 is opened on the left side of the adjusting bolt 22. A mating ring 241 is fixedly connected to the right side of the limiting plate 24. A locking screw 242 is inserted inside the limiting plate 24. After positioning the bearing support frame 11 on base 1, and then locking the limiting plate 24 onto the adjusting bolt 22, rotating the adjusting bolt 22... The limiting plate 24, in conjunction with the convex ring 23, pulls the fixed block 112 to move, causing the bearing support frame 11 to move accordingly. This allows for fine-tuning of the left and right positions, providing more precise adjustment without the need for tapping, thus avoiding damage. Furthermore, this adjustment method is simpler and more convenient. The lifting mechanism 3, consisting of two sets located on the front and back of the base 1, is used to adjust the height of the bearing support frame 11. The left end of the adjusting bolt 22 extends into the mating groove 113 on the fixed block 112. The base 1 is used for connection and fixation to the machine tool. The right side of the limiting plate 24 connects to the left side of the adjusting bolt 22 via the mating ring 241. The mating hole 221 is inserted, the locking screw 242 is threadedly connected to the adjusting bolt 22, and the convex ring 23 cooperates with the limiting plate 24 to clamp and fix the fixing block 112; two positioning blocks 12 are fixedly connected to the top of the base 1, two positioning grooves 115 are opened at the bottom of the bearing support frame 11, and slots 111 are opened at the four corners of the bearing support frame 11. Two trapezoidal blocks 114 are fixedly connected to the bottom of the bearing support frame 11; the bottom of the bearing support frame 11 is inserted into the positioning block 12 through the positioning groove 115, and the positioning block 12 is used to position and install the bearing support frame 11; the lifting mechanism 3 includes an inner groove 31 opened inside the base 1, and a push block 32 is slidably connected inside the inner groove 31. A limiting groove 33 is opened on the side of the push block 32 away from the bearing support frame 11. An adjusting bolt 34 is rotatably connected to the limiting groove 33 on the push block 32. A convex shaft 35 is fixedly connected to the side of the adjusting bolt 34 facing the push block 32. When the adjusting bolt 34 is rotated by a wrench, the adjusting bolt 34 will drive the push block 32 to move forward or backward through the convex shaft 35. When the push block 32 pushes the trapezoidal block 114, the trapezoidal block 114 will tilt upward, and drive the bearing support frame 11 to tilt upward as well, thereby adjusting the height of the bearing support frame 11. This can meet the adjustment in multiple directions, making the subsequent screw installation more accurate. This method can also adjust the position of the bearing support frame 11 more flexibly. The adjusting bolt 34 passes through the base 1 and extends to the outside. The adjusting bolt 34 is threadedly connected to the base 1.The outer side of the push block 32 is slidably connected to the inner wall of the inner groove 31. The bottom of the trapezoidal block 114 facing the push block 32 is inclined, and the top of the push block 32 contacts the inclined surface on the trapezoidal block 114. The convex shaft 35 is rotatably connected in the limiting groove 33, and the convex shaft 35 is used to restrict the adjusting bolt 34 on the push block 32. The trapezoidal block 114 is inserted into the base 1 through the inner groove 31. After the trapezoidal block 114 enters the inner groove 31, there is space between the left and right sides of the trapezoidal block 114 and the inner wall of the inner groove 31.
[0032] One specific application of this embodiment is:
[0033] In use, first install the bearing in the bearing support frame 11, then position the bearing support frame 11 on the base 1, and insert the trapezoidal block 114 at the bottom of the bearing support frame 11 into the inner groove 31. Space is left between the left and right sides of the trapezoidal block 114 and the inner groove 31. Simultaneously, the bottom of the bearing support frame 11 will connect with the positioning block 12 through the positioning groove 115, thus positioning the bearing support frame 11. After the bearing support frame 11 is placed, insert the bolt into the groove 111 and thread the bolt to the base 1. At this point, do not... Fix the bearing support bracket 11, then use a wrench to turn the adjusting bolt 22 clockwise so that the end of the adjusting bolt 22 is inserted into the mating groove 113 on the fixing block 112. Next, insert the limiting plate 24 into the mating hole 221 on the adjusting bolt 22 through the mating ring 241. Then, insert the locking screw 242 into the limiting plate 24 and thread it into the adjusting bolt 22. Tighten the locking screw 242 with a wrench. The limiting plate 24 will then cooperate with the convex ring 23 and lock and fix it to the fixing block 112. Finally, install the lead screw. Inside the bearing, by adjusting the level of the lead screw using a dial indicator, the operator can rotate the adjusting bolt 22. The adjusting bolt 22, through the convex ring 23 and the limiting plate 24, will move the fixing block 112, which in turn moves the bearing support frame 11. This allows for fine-tuning of the left and right positions of the bearing support frame 11, improving adjustment accuracy. Furthermore, by rotating the adjusting bolt 34 with a wrench, the adjusting bolt 34 will move the push block 32 forward or backward through the convex shaft 35. At this time, when the push block 32... When the trapezoidal block 114 is pushed, it will tilt upwards, causing the bearing support frame 11 to tilt upwards as well, thereby adjusting the height of the bearing support frame 11. Fine adjustments can be made by rotating the adjusting bolt 34 to different positions. When the push block 32 does not push the trapezoidal block 114, the bearing support frame 11 will move downwards. This method, through multi-functional adjustment, can make the bearing support frame 11 more accurate during installation. After the adjustment is completed, the bolt in the slot 111 is tightened to fix the bearing support frame 11.
[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A support frame for an angular contact ball bearing used in a machine tool, comprising a base (1), wherein a bearing support frame (11) is positioned on the top of the base (1), and a fixing block (112) is fixedly connected to the right side of the bearing support frame (11), wherein a mating groove (113) is provided inside the fixing block (112), characterized in that, further include: Adjustment mechanism (2), the adjustment mechanism (2) is located on the right side of bearing support frame (11), the adjustment mechanism (2) includes a fixing block two (21) fixedly connected to the top of base (1), the fixing block two (21) is internally threaded with an adjusting bolt one (22), the outer end of the adjusting bolt one (22) is fixedly connected with a convex ring (23), the adjusting bolt one (22) is provided with a limiting plate (24) on the side facing the fixing block one (112), the adjusting bolt one (22) is provided with a docking hole (221) on the left side, the limiting plate (24) is fixedly connected with a docking ring (241) on the right side, and a locking screw (242) is inserted into the limiting plate (24); and Lifting mechanism (3), there are two sets of lifting mechanism (3), the two sets of lifting mechanism (3) are respectively set on the front and back of the base (1), and the lifting mechanism (3) is used to adjust the height of the bearing support frame (11); The left end of the adjusting bolt (22) extends into the mating groove (113) on the fixing block (112), and the base (1) is used to connect and fix with the machine tool.
2. The support frame for an angular contact ball bearing for a machine tool according to claim 1, characterized in that, The right side of the limiting plate (24) is connected to the left side of the adjusting bolt (22) via the docking ring (241), the locking screw (242) is threadedly connected to the adjusting bolt (22), and the convex ring (23) cooperates with the limiting plate (24) to clamp and fix the fixing block (112).
3. A support frame for an angular contact ball bearing in a machine tool according to claim 2, characterized in that, The base (1) has two positioning blocks (12) fixedly connected to the top, the bearing support frame (11) has two positioning grooves (115) at the bottom, the bearing support frame (11) has slots (111) at all four corners, and the bearing support frame (11) has two trapezoidal blocks (114) fixedly connected to the bottom. The bearing support frame (11) is connected to the positioning block (12) at its bottom via a positioning groove (115), and the positioning block (12) is used to position and install the bearing support frame (11).
4. A support frame for an angular contact ball bearing in a machine tool according to claim 3, characterized in that, The lifting mechanism (3) includes an inner groove (31) opened inside the base (1), a push block (32) is slidably connected inside the inner groove (31), a limit groove (33) is opened on the side of the push block (32) away from the bearing support frame (11), an adjusting bolt (34) is rotatably connected in the limit groove (33) on the push block (32), and a convex shaft (35) is fixedly connected on the side of the adjusting bolt (34) facing the push block (32). The second adjusting bolt (34) passes through the base (1) and extends to the outside, and the second adjusting bolt (34) is threadedly connected to the base (1).
5. A support frame for an angular contact ball bearing in a machine tool according to claim 4, characterized in that, The outer side of the push block (32) is slidably connected to the inner wall of the inner groove (31), the bottom of the trapezoidal block (114) facing the push block (32) is set with an inclined surface, and the top of the push block (32) is in contact with the inclined surface on the trapezoidal block (114).
6. A support frame for an angular contact ball bearing in a machine tool according to claim 5, characterized in that, The trapezoidal block (114) is inserted into the base (1) through the inner groove (31). After the trapezoidal block (114) enters the inner groove (31), there is space between the left and right sides of the trapezoidal block (114) and the inner wall of the inner groove (31).
7. A support frame for an angular contact ball bearing in a machine tool according to claim 6, characterized in that, The convex shaft (35) is rotatably connected in the limiting groove (33), and the convex shaft (35) is used to restrict the adjusting bolt (34) on the push block (32).