Milling and boring tool for main bearing cap

Abstract

The utility model belongs to the technical field of machining tools, and particularly relates to a main bearing cover milling and boring machining tool which comprises a first installation disc and a second installation disc which are arranged in parallel at a certain interval, a bridge plate is fixedly connected between the first installation disc and the second installation disc, and two supporting plates are fixedly connected to the bridge plate. A first pressing device is arranged between the two supporting plates, the sides, away from each other, of the two supporting plates are each provided with a second pressing device, the two second pressing devices are symmetrically arranged, the sides, away from the bridge plate, of the two supporting plates are each slidably connected with a positioning block, and two limiting devices and two adjusting assemblies are arranged in the bridge plate. According to the main bearing cover positioning device, through reasonable design, the problem that the positioning position of a special-shaped piece is difficult to select is solved, and the main bearing cover is accurately positioned and stably fixed.

Description

Technical Field

[0001] This utility model belongs to the field of machining tooling technology, and in particular relates to a milling and boring tooling for main bearing caps. Background Technology

[0002] After precision boring the semi-circular hole inside the main bearing cover, precision milling is required on its side and boring of the mounting holes inside. How to securely fix it according to the structural characteristics of the main bearing cover is a problem that needs to be solved. In particular, the two mounting holes are symmetrically arranged on both sides of the semi-circular hole. If they cannot be accurately positioned, it will affect the machining accuracy of the boring and may even cause the product to be scrapped. Utility Model Content

[0003] The main technical problem to be solved by this utility model is to provide a milling and boring tooling for main bearing caps that has a reasonable structure, accurate positioning, reliable fixation, and high working efficiency.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] A milling and boring tooling for a main bearing cover includes a first mounting plate and a second mounting plate arranged in parallel at a certain distance. A bridge plate is fixed between the first mounting plate and the second mounting plate. Two support plates are fixed on the bridge plate. A first clamping device is provided between the two support plates. A second clamping device is provided on the side of the two support plates that is far away from each other. The two second clamping devices are symmetrically arranged. A positioning block is slidably connected on the side of the two support plates that is far away from the bridge plate. Two limiting devices and two adjusting components are provided inside the bridge plate. The adjusting components are used to drive the corresponding positioning blocks to move closer to or away from the limiting devices.

[0006] The adjustment assembly includes a slider, a sliding hole is provided in the bridge plate, the slider is slidably installed in the sliding hole, the slider is fixedly connected to the positioning block, and an adjustment rod is rotatably connected in the bridge plate, the adjustment rod is threadedly connected to the slider;

[0007] The limiting device includes two limiting components, which are respectively located on both sides of the adjusting rod;

[0008] The limiting assembly includes a first hydraulic cylinder, which is fixedly installed inside the bridge plate, and a first swing block is provided on the piston rod of the first hydraulic cylinder.

[0009] Further optimization: The cross-sectional shape of the positioning block is triangular, and the positioning block is equipped with two positioning parts arranged symmetrically.

[0010] Further optimization: The first clamping device includes a pad block, which is fixedly connected to the bridge plate. A rotary cylinder is fixedly installed on the bridge plate, and a pressure plate is fixedly connected to the piston rod of the rotary cylinder.

[0011] Further optimization: First clamping blocks are fixedly connected to both ends of the pressure plate.

[0012] Further optimization: The second clamping device includes a second hydraulic cylinder, which is fixedly mounted on the bridge plate, and a second swing block is provided on the piston rod of the second hydraulic cylinder.

[0013] Further optimization: A second clamping block is fixedly connected to the end of the second swing block away from the second oil cylinder.

[0014] Further optimization: Two fixing blocks are fixedly connected to the side of the bridge plate near the first swing block, and anti-misalignment pins are fixedly connected to both fixing blocks.

[0015] This utility model overcomes the difficulty of selecting and positioning irregularly shaped parts through rational design, accurately positioning and firmly fixing the main bearing cover; the anti-misalignment pin prevents the main bearing cover from being placed backwards; the first mounting plate is connected to the output end of the rotary table, and the second mounting plate is fixedly connected to the tailstock of the machine tool. The rotation of the rotary table drives the tooling to rotate, which facilitates milling and boring of the reference surface and mounting holes of the main bearing cover, improves work efficiency, and reduces the scrap rate.

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure from another perspective of an embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the positioning block and adjustment component in an embodiment of the present invention;

[0020] Figure 4 This is a cross-sectional structural diagram of an embodiment of the present utility model;

[0021] Figure 5 This is a cross-sectional view of the adjustment device position in an embodiment of the present invention;

[0022] Figure 6This is a schematic diagram of the main bearing cover in an embodiment of the present invention. In the figure: 1-First mounting plate; 2-Second mounting plate; 3-Bridge plate; 301-Sliding hole; 4-Support plate; 5-Positioning block; 501-Positioning part; 6-Limiting device; 601-First hydraulic cylinder; 602-First swing block; 7-Adjusting assembly; 701-Adjusting rod; 702-Slider; 8-First pressing device; 801-Pad; 802-Corner hydraulic cylinder; 803-Pressure plate; 804-First clamping block; 9-Second pressing device; 901-Second hydraulic cylinder; 902-Second swing block; 903-Second clamping block; 10-Fixing block; 11-Anti-misalignment pin; 12-Main bearing cover; 1201-Semi-circular hole; 1202-End; 1203-Boss. Detailed Implementation

[0023] like Figure 1-6 As shown, a milling and boring fixture for a main bearing cover includes a first mounting plate 1 and a second mounting plate 2 arranged in parallel at a certain distance. A bridge plate 3 is fixed between the first mounting plate 1 and the second mounting plate 2. Two support plates 4 for placing the main bearing cover 12 are fixed on the bridge plate 3. A first clamping device 8 is provided between the two support plates 4. A second clamping device 9 is provided on the side of the two support plates 4 that is far away from each other. The two second clamping devices 9 are arranged symmetrically. A positioning block 5 is slidably connected on the side of the two support plates 4 that is far away from the bridge plate 3. Two limiting devices 6 and two adjusting components 7 are provided in the bridge plate 3. The limiting devices 6 and their corresponding positioning blocks 5 work together to limit the position of the main bearing cover 12. The adjusting components 7 are used to drive their corresponding positioning blocks 5 to move closer to or away from the limiting devices 6.

[0024] With this design, the main bearing cover 12 is first placed on the support plate 4, then the limiting device 6 is activated, and the position of the positioning block 5 is adjusted by the adjusting component 7 so that it cooperates with the limiting device 6 to achieve accurate positioning of the main bearing cover 12. Then the first pressing device 8 and the second pressing device 9 are activated to firmly fix the main bearing cover 12 on the tooling.

[0025] The adjustment assembly 7 includes a slider 702. A sliding hole 301 is provided in the bridge plate 3. The slider 702 is slidably installed in the sliding hole 301. One end of the slider 702 near the positioning block 5 passes through the support plate 4 and is fixedly connected to the positioning block 5. A through hole corresponding to the sliding hole 301 is provided on the support plate 4.

[0026] An adjusting rod 701 is rotatably connected inside the bridge plate 3, and the adjusting rod 701 is threadedly connected to the slider 702.

[0027] With this design, rotating the adjusting rod 701 can adjust the positioning block 5 to be closer to the limiting device 6. The positioning block 5 cooperates with the limiting device 6 to achieve accurate positioning of the main bearing cover 12.

[0028] The positioning block 5 has a triangular cross-sectional shape and is provided with two positioning parts 501 arranged symmetrically.

[0029] With this design, the two symmetrically arranged positioning parts 501 contact the semi-circular hole 1201 of the main bearing cover 12, which facilitates accurate positioning of the main bearing cover 12.

[0030] The cross-sectional shape of the adjusting rod 701 is "T" shaped.

[0031] The limiting device 6 includes two limiting components, which are respectively located on both sides of the adjusting rod 701.

[0032] The limiting assembly includes a first hydraulic cylinder 601, which is fixedly installed inside the bridge plate 3. A first swing block 602 is provided on the piston rod of the first hydraulic cylinder 601.

[0033] With this design, the first hydraulic cylinder 601 is activated, driving the first swing block 602 to swing and approach the end 1202 of the main bearing cover 12, and achieving accurate positioning of the main bearing cover 12 with the positioning block 5.

[0034] The first pressing device 8 includes a pad 801, which is fixedly connected to the bridge plate 3. A rotary cylinder 802 is fixedly installed on the bridge plate 3, and a pressure plate 803 is fixedly connected to the piston rod of the rotary cylinder 802.

[0035] The pressure plate 803 is fixed with a first clamping block 804 near both ends.

[0036] The second pressing device 9 includes a second hydraulic cylinder 901, which is fixedly mounted on the bridge plate 3. A second swing block 902 is provided on the piston rod of the second hydraulic cylinder 901.

[0037] The second swing block 902 is fixedly connected to the end away from the second oil cylinder 901 by the second clamping block 903.

[0038] With this design, the angle cylinder 802 drives the pressure plate 803 to rotate 90° and move downward, and the second cylinder 901 drives the second swing block 902 to swing, thereby achieving stable fixation of the main bearing cover 12.

[0039] Two fixing blocks 10 are fixedly connected to the side of the bridge plate 3 near the first swing block 602. Each fixing block 10 is fixedly connected with an anti-misalignment pin 11. The anti-misalignment pin 11 is set to correspond with the main bearing cover 12 and avoids the boss 1203 of the main bearing cover 12.

[0040] With this design, when the main bearing cover 12 is placed backwards, the anti-misalignment pin 11 will press against the boss 1203, and the anti-misalignment pin 11 plays a role in preventing the main bearing cover 12 from being placed backwards.

[0041] In use, the main bearing cover 12 is first fixed on the tooling. The first mounting plate 1 is connected to the output end of the rotary table, and the second mounting plate 2 is fixedly connected to the tailstock of the machining center. The rotary table is a driving device on the machining center that drives the workpiece to rotate in the horizontal direction, which is existing technology.

[0042] The rotary table rotates, causing the tooling to rotate, facilitating milling and boring of the reference surface and mounting holes of the main bearing cover 12. For those skilled in the art, any changes, modifications, substitutions, and variations made to the embodiments without departing from the principles and spirit of this invention, based on the teachings of this invention, still fall within the protection scope of this invention.

Claims

1. A milling and boring fixture for a main bearing cover, comprising a first mounting plate (1) and a second mounting plate (2) arranged in parallel at a certain distance, wherein a bridge plate (3) is fixedly connected between the first mounting plate (1) and the second mounting plate (2), characterized in that: Two support plates (4) are fixedly connected to the bridge plate (3). A first pressing device (8) is provided between the two support plates (4). A second pressing device (9) is provided on the side of the two support plates (4) that is far away from each other. The two second pressing devices (9) are arranged symmetrically. A positioning block (5) is slidably connected on the side of the two support plates (4) that is far away from the bridge plate (3). Two limiting devices (6) and two adjusting components (7) are provided inside the bridge plate (3). The adjusting components (7) are used to drive the corresponding positioning block (5) to move closer to or away from the limiting device (6). The adjustment assembly (7) includes a slider (702), a sliding hole (301) is provided in the bridge plate (3), the slider (702) is slidably installed in the sliding hole (301), the slider (702) is fixedly connected to the positioning block (5), and an adjustment rod (701) is rotatably connected in the bridge plate (3), the adjustment rod (701) is threadedly connected to the slider (702); The limiting device (6) includes two limiting components, which are respectively located on both sides of the adjusting rod (701); The limiting component includes a first hydraulic cylinder (601), which is fixedly installed inside the bridge plate (3). A first swing block (602) is provided on the piston rod of the first hydraulic cylinder (601).

2. The milling and boring fixture for main bearing caps according to claim 1, characterized in that: The positioning block (5) has a triangular cross-sectional shape and is provided with two positioning parts (501) arranged symmetrically.

3. The milling and boring fixture for main bearing caps according to claim 1, characterized in that: The first pressing device (8) includes a pad (801), which is fixedly connected to the bridge plate (3). A rotary cylinder (802) is fixedly installed on the bridge plate (3), and a pressure plate (803) is fixedly connected to the piston rod of the rotary cylinder (802).

4. The milling and boring fixture for a main bearing cap according to claim 3, characterized in that: The pressure plate (803) is fixed with a first clamping block (804) near both ends.

5. The milling and boring fixture for a main bearing cap according to claim 1, characterized in that: The second pressing device (9) includes a second oil cylinder (901), which is fixedly installed on the bridge plate (3). A second swing block (902) is provided on the piston rod of the second oil cylinder (901).

6. The milling and boring fixture for a main bearing cap according to claim 5, characterized in that: The second swing block (902) is fixedly connected to a second clamping block (903) at the end away from the second oil cylinder (901).

7. The milling and boring fixture for main bearing caps according to claim 1, characterized in that: Two fixing blocks (10) are fixedly connected to the side of the bridge plate (3) near the first swing block (602), and anti-misalignment pins (11) are fixedly connected to both fixing blocks (10).

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