Clamp for groove milling of bearing fixing seat
By designing a clamping and holding mechanism for the composite fixture, the problem of insufficient clamping force in existing bearing mounting fixtures is solved, improving machining accuracy and stability, and making it suitable for milling grooves in bearing mounting seats.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-17
AI Technical Summary
The existing bearing mounting fixtures have a single clamping method, resulting in insufficient clamping force, which affects machining accuracy and stability.
A composite clamping fixture was designed, comprising a side plate, a base, a clamping mechanism, a locking assembly, and a clamping mechanism. The clamping mechanism secures the upper and lower parts of the bearing seat, while the clamping mechanism further reinforces the middle part, thereby improving clamping stability.
This method enables multi-point fixation of the bearing housing, improving machining accuracy and stability, and ensuring the smooth progress of milling.
Smart Images

Figure CN223997875U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bearing mounting base processing technology, specifically to a fixture for milling grooves in bearing mounting bases. Background Technology
[0002] Bearing mounts are characterized by their compact structure, flexible rotation, and convenient maintenance. Where there is a bearing, there must be a support point. The inner support point of the bearing is the shaft, and the outer support is the bearing mount. When machining bearing mounts, it is necessary to mill grooves on their surface.
[0003] Milling machine fixtures are mainly used for machining planes, grooves, splines, and various shaped surfaces on parts, and are among the most commonly used fixtures. They mainly consist of a positioning device, a clamping device, a fixture body, connecting elements, and a tool setting element. During milling, the cutting force is relatively large, and the cutting is intermittent, resulting in significant vibration. Therefore, milling machine fixtures require a large clamping force, and the fixtures themselves must have high rigidity and strength.
[0004] Current bearing housing fixtures employ a single clamping method, typically consisting of a support and a clamping part. This results in insufficient clamping force, leading to low stability and affecting the machining accuracy of the bearing housing. Therefore, there is an urgent need to design a fixture for milling bearing housing grooves to solve these problems. Utility Model Content
[0005] The purpose of this invention is to provide a fixture for milling grooves in bearing mounting seats, so as to solve the above-mentioned shortcomings in the prior art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A fixture for milling grooves in bearing mounting seats includes a side plate, an integral base is fixedly installed below the side plate, and a bearing seat is installed above the base;
[0008] A clamping mechanism is fixedly provided on one side of the top of the side plate, and the clamping mechanism is used at least for fixing the upper part of the bearing seat;
[0009] A locking assembly is installed above the base, the locking assembly being used at least for securing the underside of the bearing housing;
[0010] One side of the side plate is provided with a clamping mechanism that slides up and down, and the clamping mechanism is used at least for fixing the middle part of the bearing seat.
[0011] Preferably, a sliding hole is provided in the middle of the side plate, and the clamping mechanism is slidably inserted into the sliding hole.
[0012] Preferably, the clamping mechanism includes a base and a guide frame fixed to the side wall of the side plate, wherein the guide frame is located below the base;
[0013] A clamping block is slidably inserted inside the guide frame. A connecting seat is provided on the top of the clamping block. A lead screw is rotatably inserted inside the top of the connecting seat. The lead screw is threadedly connected to a threaded hole inside the base.
[0014] Preferably, the clamping block consists of two symmetrically distributed clamping blocks, and the side view shape of the clamping blocks is a right triangle.
[0015] Preferably, the locking assembly includes a sliding groove on the top outer wall of the base and a positioning groove on one side outer wall of the base. A slider is inserted into the sliding groove, and a guide post protruding above the sliding groove is fixedly installed on the top outer wall of the slider. A locking bolt located inside the positioning groove is also inserted into one side of the slider.
[0016] Preferably, the clamping mechanism includes a liner, and sleeves are provided on both sides of the top of the liner. A worm gear is rotatably inserted into the inside of the sleeve. A worm wheel is provided on both sides of the worm gear. A synchronously rotating transmission arm is provided on the top of the worm wheel. A clamping arm is fixedly installed at the end of the transmission arm.
[0017] Preferably, a support shaft is provided in the middle of the worm gear, and the bottom end of the support shaft is provided on the upper surface of the liner.
[0018] Preferably, the two clamping arms are symmetrically distributed, and the two clamping arms open and close simultaneously, with the clamping arms located inside the shaft hole of the bearing seat.
[0019] In the above technical solution, the bearing fixing seat milling groove fixture provided by this utility model has the following beneficial effects:
[0020] The clamping mechanism used can stably clamp the upper part of the bearing housing;
[0021] The locking mechanism can be used to limit and fix the bottom of the bearing housing;
[0022] Furthermore, the clamping mechanism can further reinforce and fix the middle part of the bearing housing, improving the stability of the bearing housing clamping and making it easier to perform milling on the bearing housing. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0024] Figure 1 This is a schematic diagram of an angle structure for an embodiment of a bearing mounting seat milling fixture according to the present invention.
[0025] Figure 2 This is another structural schematic diagram of an embodiment of a bearing mounting seat milling fixture according to the present invention.
[0026] Figure 3 This is a front view structural schematic diagram of an embodiment of a bearing fixing seat milling fixture according to the present invention.
[0027] Figure 4 This is a schematic diagram of the clamping mechanism provided in an embodiment of a bearing fixing seat milling fixture of the present invention.
[0028] Figure 5 This is a schematic diagram of the locking assembly structure provided in an embodiment of a bearing fixing seat milling fixture of the present invention.
[0029] Figure 6 This is a schematic diagram of the clamping mechanism provided in an embodiment of a bearing mounting seat milling fixture of the present invention.
[0030] 1. Side plate; 11. Sliding hole; 2. Base; 3. Bearing seat; 4. Clamping mechanism; 41. Base; 42. Guide frame; 43. Connecting seat; 44. Clamping block; 45. Lead screw; 5. Locking assembly; 51. Slide groove; 52. Positioning groove; 53. Slider; 54. Guide post; 55. Locking bolt; 6. Clamping mechanism; 61. Liner; 62. Sleeve; 63. Worm; 64. Worm wheel; 65. Transmission arm; 66. Clamping arm. Detailed Implementation
[0031] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0032] like Figure 1-6 As shown in the figure, a bearing mounting seat milling fixture provided by this utility model includes a side plate 1, an integral base 2 fixedly installed below the side plate 1, and a bearing seat 3 installed above the base 2; a clamping mechanism 4 is fixedly provided on one side of the top of the side plate 1, the clamping mechanism 4 is used to fix at least the upper part of the bearing seat 3; a locking component 5 is installed above the base 2, the locking component 5 is used to fix at least the lower part of the bearing seat 3; and a clamping mechanism 6 that slides up and down is provided on one side of the side plate 1, the clamping mechanism 6 is used to fix at least the middle part of the bearing seat 3.
[0033] In this embodiment, a side plate 1 is included;
[0034] Specifically, a sliding hole 11 is provided in the middle of the side plate 1, the clamping mechanism 6 is slidably inserted into the sliding hole 11, and the liner 61 is slidably inserted into the sliding hole 11, so that the clamping mechanism 6 can move up and down to achieve fixed clamping of bearing seats 3 of different specifications.
[0035] In this embodiment, an integral base 2 is fixedly installed below the side plate 1, and a bearing seat 3 is installed above the base 2.
[0036] In this embodiment, a pressing mechanism 4 is fixedly provided on the top side of the side plate 1. The pressing mechanism 4 is used at least for fixing the upper part of the bearing seat 3.
[0037] Specifically, the clamping mechanism 4 includes a base 41 and a guide frame 42 fixed on the side wall of the side plate 1. The guide frame 42 is located below the base 41, and the base 41 and the guide frame 42 can be welded to the side wall of the side plate 1.
[0038] Specifically, a clamping block 44 is slidably inserted inside the guide frame 42, and a connecting seat 43 is provided on the top of the clamping block 44. A lead screw 45 is rotatably inserted inside the top of the connecting seat 43. The lead screw 45 is threadedly connected to the threaded hole inside the base 41. The operator uses a tool to put on the top of the lead screw 45, so that the lead screw 45 rotates. The connecting seat 43 can rotate, thereby driving the clamping block 44 to move down inside the guide frame 42, so as to clamp and fix the top of the bearing seat 3.
[0039] Specifically, the clamping block 44 consists of two symmetrically distributed clamping blocks. The side view of the clamping blocks is a right-angled triangle. The two clamping blocks are exactly stuck on the circular surface of the top of the bearing seat 3, so as to clamp and fix the top of the bearing seat 3.
[0040] In this embodiment, a locking component 5 is installed above the base 2, and the locking component 5 is used at least for fixing the underside of the bearing seat 3;
[0041] Specifically, the locking assembly 5 includes a slide groove 51 on the top outer wall of the base 2 and a positioning groove 52 on one side outer wall of the base 2. A slider 53 is inserted into the slide groove 51. A guide post 54 protruding above the slide groove 51 is fixedly installed on the top outer wall of the slider 53. A locking bolt 55 located inside the positioning groove 52 is inserted into one side of the slider 53. According to the size of the bearing seat 3, by loosening the locking bolt 55, the slider 53 can slide freely inside the slide groove 51. The guide post 54 is inserted into the bolt hole of the bearing seat 3, and then the locking bolt 55 is fixed, so that the slider 53 is fixed inside the slide groove 51, thereby realizing the fixation of the bottom of the bearing seat 3 by the locking assembly 5.
[0042] In this embodiment, a clamping mechanism 6 that slides up and down is provided on one side of the side plate 1. The clamping mechanism 6 is used at least to fix the middle part of the bearing seat 3.
[0043] Specifically, the clamping mechanism 6 includes a bushing 61, with sleeves 62 on both sides of the top of the bushing 61. A worm gear 63 is rotatably inserted into the sleeve 62, and worm wheels 64 are provided on both sides of the worm gear 63. A synchronously rotating transmission arm 65 is provided on the top of the worm wheel 64, and a clamping arm 66 is fixedly installed at the end of the transmission arm 65. After the clamping mechanism 4 and the locking assembly 5 have finished fixing the bearing seat 3, the operator uses a tool to rotate the worm gear 63. The worm gear 63 drives the two worm wheels 64 to rotate simultaneously, which allows the two clamping arms 66 to open and close. When the two clamping arms 66 open in the shaft hole inside the bearing seat 3, they achieve fixed clamping of the middle part of the bearing seat 3, further improving the stability of clamping the bearing seat 3.
[0044] Specifically, a support shaft is provided in the middle of the worm gear 64, and the bottom end of the support shaft is provided on the upper surface of the liner 61. The worm gear 64 rotates on the support shaft.
[0045] Specifically, the two clamping arms 66 are symmetrically distributed, and the two clamping arms 66 open and close at the same time. The clamping arms 66 are located inside the shaft hole of the bearing seat 3, and the clamping and release of the shaft hole inside the bearing seat 3 are achieved by using the two clamping arms 66.
[0046] Working steps: 1. The operator installs the bearing housing 3 on the locking assembly 5, inserts the guide post 54 on the slider 53 into the bolt mounting hole of the bearing housing 3, and locks the slider 53 with the locking bolt 55.
[0047] Second, by moving the pressing mechanism 4, the pressing block 44 bears pressure from the top of the bearing seat 3, ensuring the stability of the top of the bearing seat 3.
[0048] Third, the clamping mechanism 6 is operated so that the two clamping arms 66 of the clamping mechanism 6 are clamped and fixed inside the shaft hole of the bearing seat 3, so that one side of the bearing seat 3 is exposed by the clamp. The milling machine is used to perform milling groove machining on the side of the bearing seat 3, which further strengthens the fixed clamping of the bearing seat 3 and ensures the stability of the bearing seat 3 during processing.
[0049] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A jig for milling a groove of a bearing fixing seat, comprising a side plate (1), characterized in that, The lower part of the side plate (1) is fixedly installed with a base (2) of integral structure, and the upper part of the base (2) is installed with a bearing seat (3); The upper part of the side plate (1) is fixedly provided with a pressing mechanism (4) on one side, and the pressing mechanism (4) is used for fixing at least the upper part of the bearing seat (3); The upper part of the base (2) is installed with a locking assembly (5), and the locking assembly (5) is used for fixing at least the lower part of the bearing seat (3); One side of the side plate (1) is provided with a clamping mechanism (6) sliding up and down, and the clamping mechanism (6) is used for fixing at least the middle part of the bearing seat (3).
2. The bearing block slotting jig according to claim 1, wherein The middle part of the side plate (1) is provided with a sliding hole (11), and the clamping mechanism (6) is slidingly inserted into the sliding hole (11).
3. The bearing block fixture of claim 1, wherein: The pressing mechanism (4) comprises a base (41) fixed on the side wall of the side plate (1) and a guide frame (42) below the base (41). The inside of the guide frame (42) is slidingly inserted with a pressing block (44), the top of the pressing block (44) is provided with a connecting seat (43), the top end of the connecting seat (43) is rotatably inserted with a lead screw (45), and the lead screw (45) is threadedly connected with the threaded hole in the inside of the base (41).
4. The bearing block fixture of claim 3, wherein: The pressing block (44) is composed of two symmetrical pressing blocks, and the side view shape of the pressing block is a right triangle.
5. The bearing block fixture of claim 1, wherein: The locking assembly (5) comprises a sliding groove (51) provided on the top outer wall of the base (2) and a positioning groove (52) provided on the side outer wall of the base (2), the inside of the sliding groove (51) is inserted with a sliding block (53), the top outer wall of the sliding block (53) is fixedly installed with a guide column (54) protruding above the sliding groove (51), and the side of the sliding block (53) is additionally inserted with a locking bolt (55) in the inside of the positioning groove (52).
6. The bearing block fixture of claim 1, wherein: The clamping mechanism (6) comprises a lining block (61), the top of the lining block (61) is provided with a sleeve (62) on both sides, the inside of the sleeve (62) is rotatably inserted with a worm (63), both sides of the worm (63) are provided with a worm wheel (64), the top of the worm wheel (64) is provided with a transmission arm (65) rotating synchronously, and the end of the transmission arm (65) is fixedly installed with a clamping arm (66).
7. The bearing block fixture of claim 6, wherein: The middle part of the worm wheel (64) is provided with a support shaft, and the bottom end of the support shaft is arranged on the upper surface of the lining block (61).
8. The bearing block fixture of claim 6, wherein: The two clamping arms (66) are symmetrically distributed, the two clamping arms (66) are opened and closed at the same time, and the clamping arms (66) are located in the shaft hole of the bearing seat (3).