Device for processing bearing hole of box body

Abstract

The utility model belongs to the technical field of machining, and particularly discloses a device for machining a bearing hole of a box body, which comprises a base, a left transverse feeding part, a middle longitudinal feeding part and a right transverse feeding part are arranged on the base, and the box body is arranged on the middle longitudinal feeding part. The left transverse feeding part and the right transverse feeding part are each provided with a cutting assembly, and the cutting assemblies are used for machining bearing holes in the two sides of the box. By means of the left transverse feeding part and the right transverse feeding part, the two sets of symmetrically-arranged cutting assemblies can be synchronously close to or away from the box body, bearing holes in the two sides of the box body are machined at the same time, the multiple bearing holes in the two sides of the box body can be machined at a time due to the fact that the boring rods are symmetrically arranged, and machining efficiency is improved. And the machining efficiency of the bearing hole is greatly improved. The two sets of cutting assemblies are symmetrically arranged on the two sides of the box body in advance and can only move transversely without generating longitudinal displacement, and the coaxial precision of symmetrical bearing holes in the two sides of the box body can be guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing technology, specifically relating to a device for processing bearing holes in a housing. Background Technology

[0002] PM series gearboxes are common gearboxes, available in 8 different sizes ranging from 250mm to 1000mm. Each size has 9 speed ratios and 9 assembly types, which can meet various installation needs of users and are widely used in various industries.

[0003] In existing technologies, each bearing hole on the PM series gearbox is usually machined individually using a boring machine. This is not only time-consuming and inefficient, but also cannot guarantee the coaxial accuracy requirements of paired bearing holes. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology and solve the problems existing in the existing technology, this utility model provides a device for processing bearing holes in a housing.

[0005] This utility model is achieved through the following technical solution.

[0006] This utility model provides a device for machining bearing holes in a housing, including a base, on which a left transverse feed section, a middle longitudinal feed section, and a right transverse feed section are provided. A housing is provided on the middle longitudinal feed section. Cutting components are provided on both the left and right transverse feed sections. The cutting component on the left is used for machining the bearing hole on the left side of the housing, and the cutting component on the right is used for machining the bearing hole on the right side of the housing.

[0007] As a further improvement to the above solution, the cutting assembly includes a housing, on which the cutting assembly includes at least three parallel boring bars, the central axes of the at least three boring bars being located on the same horizontal plane, a first transmission wheel being provided at the end of at least one boring bar away from the housing, a drive motor being provided corresponding to the first transmission wheel, the drive motor being used to drive the first transmission wheel to rotate, a second transmission wheel being provided on each of the at least three boring bars, a transition wheel shaft being provided between adjacent two transmission wheels, and a reversing wheel being provided on the transition wheel shaft that can be driven and connected to the corresponding two second transmission wheels.

[0008] As a further improvement to the above solution, five boring bars are provided, namely a first boring bar, a second boring bar, a third boring bar, a fourth boring bar, and a fifth boring bar. The center distance between the first boring bar and the second boring bar is 100mm, the center distance between the second boring bar and the third boring bar is 100mm, the center distance between the third boring bar and the fourth boring bar is 150mm, and the center distance between the fourth boring bar and the fifth boring bar is 150mm.

[0009] As a further improvement to the above solution, a first transmission wheel is provided at the end of the first boring bar and / or the fourth boring bar away from the housing.

[0010] As a further improvement to the above solution, the left transverse feed unit includes a left transverse lead screw and a left moving table mounted on the base. A first reduction motor is externally connected to the left end of the left transverse lead screw. The left transverse lead screw is located below the left moving table. The left transverse lead screw is connected to a first lead screw nut mounted at the bottom of the left moving table. The chassis on the left side is mounted on the left moving table.

[0011] As a further improvement to the above solution, the longitudinal feed unit includes a longitudinal lead screw and a longitudinal moving table mounted on the base. One end of the longitudinal lead screw is externally connected to a second reduction motor. The longitudinal lead screw is located below the longitudinal moving table and is connected to a second lead screw nut mounted at the bottom of the longitudinal moving table. The machine housing on the right side is mounted on the longitudinal moving table.

[0012] As a further improvement to the above solution, the right transverse feed unit includes a right transverse lead screw and a right moving table mounted on the base. A third reduction motor is externally connected to the right end of the right transverse lead screw. The right transverse lead screw is located below the right moving table. The right transverse lead screw is connected to a third lead screw nut mounted at the bottom of the right moving table. The housing is mounted on the right moving table.

[0013] As a further improvement to the above solution, a height adjustment pad is provided on the longitudinal moving platform, and the housing is mounted on the height adjustment pad.

[0014] As a further improvement to the above solution, a boring head is detachably installed on the end of the boring bar facing the housing.

[0015] The beneficial effects of this utility model are:

[0016] 1. In this utility model, the left transverse feed section and the right transverse feed section enable two symmetrically arranged cutting components to move closer to or further away from the housing at the same time, and process the bearing holes on both sides of the housing simultaneously. At the same time, the symmetrical arrangement of multiple boring bars enables multiple bearing holes on both sides of the housing to be processed at one time, which greatly improves the processing efficiency of bearing holes.

[0017] 2. In this utility model, the two sets of cutting components are symmetrically pre-positioned on both sides of the housing. They will only move laterally under the action of the left and right transverse feed parts, and will not produce longitudinal displacement, thus ensuring the coaxial accuracy of the symmetrical bearing holes on both sides of the housing.

[0018] 3. In this utility model, this device can not only freely perform conventional single bearing hole processing, but also process various box bodies with different center distance specifications by setting multiple boring bars. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the cutting assembly in this utility model;

[0021] Figure 3 This is a schematic diagram showing the positional relationship between the boring bar and the transition wheel shaft in this utility model;

[0022] Figure 4 This is a schematic diagram showing the positional relationship between the second transmission wheel and the reversing wheel in this utility model;

[0023] Figure 5 This is a transmission path diagram for processing the A250 specification box in this utility model;

[0024] Figure 6 This is a transmission path diagram for processing the A350 specification box in this utility model;

[0025] Figure 7 This is a transmission path diagram for processing the A400 specification box in this utility model;

[0026] Figure 8 This is a transmission path diagram for processing the A500 specification box in this utility model.

[0027] In the diagram: 1. Base; 2. Housing; 3. Cutting assembly; 4. Chassis; 5. Boring bar; 501. First boring bar; 502. Second boring bar; 503. Third boring bar; 504. Fourth boring bar; 505. Fifth boring bar; 6. First transmission wheel; 7. Second transmission wheel; 8. Transition wheel shaft; 9. Reversing wheel; 10. Left transverse lead screw; 11. Left moving table; 12. Longitudinal lead screw; 13. Longitudinal moving table; 14. Right transverse lead screw; 15. Right moving table; 16. Height adjustment pad; 17. Boring head. Detailed Implementation

[0028] To further illustrate the technical solution of this utility model, the following description is provided in conjunction with the accompanying drawings and embodiments.

[0029] like Figures 1 to 8 As shown, an apparatus for machining bearing holes in a housing includes a base 1, on which a left transverse feed section, a middle longitudinal feed section, and a right transverse feed section are provided. A housing 2 is provided on the middle longitudinal feed section. Cutting components 3 are provided on both the left and right transverse feed sections. The left cutting component 3 is used for machining the bearing hole on the left side of the housing 2, and the right cutting component 3 is used for machining the bearing hole on the right side of the housing 2.

[0030] Specifically, there are two sets of cutting components 3, which are symmetrically arranged on both sides of the housing 2. The left transverse feed unit can control the left cutting component 3 to move to the right to cut the bearing hole on the left side of the housing 2, and the right transverse feed unit can control the right cutting component 3 to move to the left to cut the bearing hole on the right side of the housing 2. The two can move synchronously.

[0031] Furthermore, in some embodiments, the cutting assembly 3 includes a housing 4, on which at least three parallel boring bars 5 are mounted. The central axes of the at least three boring bars 5 are located on the same horizontal plane. At least one boring bar 5 has a first transmission wheel 6 at its end away from the housing 2. A drive motor is provided corresponding to the first transmission wheel 6. The drive motor is used to drive the first transmission wheel 6 to rotate. Each of the at least three boring bars 5 is provided with a second transmission wheel 7. A transition wheel shaft 8 is provided between two adjacent transmission wheels. A reversing wheel 9 is provided on the transition wheel shaft 8 and can be connected to the corresponding two second transmission wheels 7.

[0032] Specifically, the boring bar 5 and the transition wheel shaft 8 are rotatably mounted on the housing 2 without producing horizontal displacement.

[0033] Furthermore, in some embodiments, the transition wheel shaft 8 is located below two adjacent boring bars 5.

[0034] Furthermore, in some embodiments, there are three boring bars 5, and the center distance between the three boring bars 5 corresponds to the specifications of eight PM series models, namely PM250, PM350, PM400, PM500, PM650, PM750, PM850 and PM1000.

[0035] Furthermore, in some embodiments, five boring bars 5 are provided, namely a first boring bar 501, a second boring bar 502, a third boring bar 503, a fourth boring bar 504, and a fifth boring bar 505. The center distance between the first boring bar 501 and the second boring bar 502 is 100mm, the center distance between the second boring bar 502 and the third boring bar 503 is 100mm, the center distance between the third boring bar 503 and the fourth boring bar 504 is 150mm, and the center distance between the fourth boring bar 504 and the fifth boring bar 505 is 150mm.

[0036] Specifically, four transition wheel shafts 8 are provided for the five boring bars, namely the first transition wheel shaft, the second transition wheel shaft, the third transition wheel shaft, and the fourth transition wheel shaft. The first transition wheel shaft is located between the first boring bar 501 and the second boring bar 502, the second transition wheel shaft is located between the second boring bar 502 and the third boring bar 503, the third transition wheel shaft is located between the third boring bar 503 and the fourth boring bar 504, and the fourth transition wheel shaft is located between the fourth boring bar 504 and the fifth boring bar 505.

[0037] Furthermore, when there are five boring bars 5, the first boring bar 501 and / or the fourth boring bar 504 are provided with a first transmission wheel 6 at the end away from the housing 2.

[0038] Furthermore, in some embodiments, the first transmission wheel 6 is a pulley.

[0039] Furthermore, in some embodiments, the left transverse feed unit includes a left transverse lead screw 10 and a left moving table 11 disposed on the base 1. A first reduction motor is externally connected to the left end of the left transverse lead screw 10. The left transverse lead screw 10 is located below the left moving table 11. The left transverse lead screw 10 is connected to a first lead screw nut disposed at the bottom of the left moving table 11. The left side housing 4 is disposed on the left moving table 11.

[0040] Furthermore, in some embodiments, the longitudinal feed unit includes a longitudinal lead screw 12 and a longitudinal moving table 13 disposed on the base 1. One end of the longitudinal lead screw 12 is externally connected to a second reduction motor. The longitudinal lead screw 12 is located below the longitudinal moving table 13. The longitudinal lead screw 12 is connected to a second lead screw nut disposed at the bottom of the longitudinal moving table 13. The right-side housing 4 is disposed on the longitudinal moving table 13.

[0041] Furthermore, in some embodiments, the right transverse feed unit includes a right transverse lead screw 14 and a right moving table 15 disposed on the base 1. A third reduction motor is externally connected to the right end of the right transverse lead screw 14. The right transverse lead screw 14 is located below the right moving table 15. The right transverse lead screw 14 is connected to a third lead screw nut disposed at the bottom of the right moving table 15. The housing 2 is disposed on the right moving table 15.

[0042] Furthermore, in some embodiments, the bottom of the left moving stage 11, the longitudinal moving stage 13, and the right moving stage 15 are each provided with two guide rails, and the base 1 is provided with guide grooves that can match the guide rails.

[0043] Furthermore, in some embodiments, one of the two guide rails at the bottom of the left moving stage 11, the longitudinal moving stage 13, and the right moving stage 15 has a rectangular cross-section, while the other guide rail has a triangular cross-section.

[0044] Furthermore, in some embodiments, a height adjustment bracket 16 is provided on the longitudinal moving stage 13, and the housing 2 is disposed on the height adjustment bracket 16.

[0045] Specifically, the height of the height adjustment pad 16 is set according to the different models of the gearbox. During processing, it is ensured that each bearing hole and its corresponding boring bar are on the same central axis.

[0046] Furthermore, in some implementations, the gearbox center height + shim height = boring bar 5 center height is followed. For example, when the boring bar 5 center height = 300, the PM250 gearbox center height is 160 and the shim height is 140; the PM350 gearbox center height is 200 and the shim height is 100; the PM400 gearbox center height is 250 and the shim height is 50; and the PM500 gearbox center height is 300, requiring no shim.

[0047] Furthermore, in some embodiments, the boring bar 5 is detachably mounted with a boring head 17 at the end facing the housing 2.

[0048] Furthermore, in some embodiments, the thickness of each boring bar 5 and the size of the corresponding boring head 17 may be different, and the specific dimensions may be adjusted according to the size of the bearing hole to be processed.

[0049] Specifically, when the boring bar 5 is set to five, this device has four working modes, which correspond to the machining of bearing holes in housing 2 of four specifications: PM250, PM350, PM400, and PM500, respectively.

[0050] Specifically, when machining the PM250 housing 2, boring heads 17 are installed on the second boring bar 502, the third boring bar 503, and the fourth boring bar 504, while the other two boring bars are not equipped with boring heads 17. During machining, the drive motor drives the first transmission wheel 6 to rotate. The first transmission wheel 6 is installed on the outer end of the fourth boring bar 504. The first transmission wheel 6 drives the fourth boring bar 504 to rotate. The fourth boring bar 504 drives the third boring bar 503 to rotate synchronously through the third transition wheel shaft. The third boring bar 503 drives the second boring bar 502 to rotate synchronously through the second transition wheel shaft.

[0051] Specifically, when machining the PM350 housing 2, boring heads 17 are installed on the first boring bar 501, the third boring bar 503, and the fourth boring bar 504, while the other two boring bars are not equipped with boring heads 17. During machining, the drive motor drives the first transmission wheel 6 to rotate. The first transmission wheel 6 is installed on the outer end of the fourth boring bar 504. The first transmission wheel 6 drives the fourth boring bar 504 to rotate. The fourth boring bar 504 drives the first boring bar 501 to rotate synchronously through the third transition wheel shaft, the third boring bar 503, the second transition wheel shaft, the second boring bar 502, and the first transition wheel shaft connected in sequence.

[0052] Specifically, when machining the PM400 housing 2, boring heads 17 are installed on the second boring bar 502, the fourth boring bar 504, and the fifth boring bar 505, while the other two boring bars are not equipped with boring heads 17. During machining, the drive motor drives the first transmission wheel 6 to rotate. The first transmission wheel 6 is installed on the outer end of the fourth boring bar 504. The first transmission wheel 6 drives the fourth boring bar 504 to rotate. The fourth boring bar 504 drives the second boring bar 502 to rotate synchronously through the third transition wheel shaft, the third boring bar 503, and the second transition wheel shaft connected in sequence. The fourth transition wheel shaft drives the fifth boring bar 505 to rotate synchronously.

[0053] Specifically, when machining the PM500 housing 2, boring heads 17 are installed on the first boring bar 501, the third boring bar 503, and the fifth boring bar 505, while the other two boring bars are not equipped with boring heads 17. During machining, the drive motor drives the first transmission wheel 6 to rotate. The first transmission wheel 6 is installed on the outer end of the first boring bar 501. The first transmission wheel 6 drives the first boring bar 501 to rotate. The first boring bar 501 drives the third boring bar 503 to rotate synchronously through the first transition wheel shaft, the second boring bar 502, and the second transition wheel shaft connected in sequence. The third boring bar 503 drives the fifth boring bar 505 to rotate synchronously through the third transition wheel shaft, the fourth boring bar 504, and the fourth transition wheel shaft connected in sequence.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all changes falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.

[0055] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An apparatus for machining a bearing bore of a box, characterized by: The utility model provides a cutting assembly and a box body machining device, and the cutting assembly comprises a machine box, at least three parallelly arranged boring bars are installed on the machine box, the central axes of the at least three boring bars are located on the same horizontal plane, at least one end of at least one boring bar is provided with a first transmission wheel, a driving motor is arranged corresponding to the first transmission wheel, the driving motor is used for driving the first transmission wheel to rotate, a second transmission wheel is arranged on each of the at least three boring bars, a transition wheel shaft is arranged between two adjacent transmission wheels, and a reversing wheel that can be in transmission connection with the corresponding two second transmission wheels is arranged on the transition wheel shaft.

2. An apparatus for machining a bearing hole in a box, according to claim 1, characterized in that: The boring bar is provided with five boring bars, namely a first boring bar (501), a second boring bar (502), a third boring bar (503), a fourth boring bar (504) and a fifth boring bar (505), the central distance between the first boring bar (501) and the second boring bar (502) is 100 mm, the central distance between the second boring bar (502) and the third boring bar (503) is 100 mm, the central distance between the third boring bar (503) and the fourth boring bar (504) is 150 mm, and the central distance between the fourth boring bar (504) and the fifth boring bar (505) is 150 mm.

3. An apparatus for machining a bearing hole in a box, according to claim 2, characterized in that: The first boring bar (501) and / or the fourth boring bar (504) are provided with the first transmission wheel (6) at one end away from the box body (2).

4. An apparatus for machining a bearing hole in a box, according to claim 3, characterized in that: The left transverse feeding part comprises a left transverse lead screw (10) and a left moving table (11) arranged on the base (1), a first speed reducer motor is arranged at one end of the left transverse lead screw (10) in the left direction, the left transverse lead screw (10) is located below the left moving table (11), the left transverse lead screw (10) is connected with a first lead screw nut arranged at the bottom of the left moving table (11), and the left machine box (4) is arranged on the left moving table (11).

5. An apparatus for machining a bearing bore of a box, according to claim 2, wherein: The middle longitudinal feeding part comprises a longitudinal lead screw (12) and a longitudinal moving table (13) arranged on the base (1), a second speed reducer motor is arranged at one end of the longitudinal lead screw (12), the longitudinal lead screw (12) is located below the longitudinal moving table (13), the longitudinal lead screw (12) is connected with a second lead screw nut arranged at the bottom of the longitudinal moving table (13), and the right machine box (4) is arranged on the longitudinal moving table (13).

6. An apparatus for machining a bearing bore of a box, according to claim 2, wherein: ​ 7. An apparatus for machining a bearing bore of a box, according to claim 1, wherein: The right transverse feeding part comprises a right transverse screw rod (14) and a right moving table (15) arranged on the base (1), the right transverse screw rod (14) is provided with a third speed reducer motor at the right end, the right transverse screw rod (14) is located below the right moving table (15), the right transverse screw rod (14) is connected with a third screw rod nut arranged at the bottom of the right moving table (15), and the box body (2) is arranged on the right moving table (15).

8. An apparatus for machining a bearing bore of a box, according to claim 6, wherein: The longitudinal moving table (13) is provided with a height adjusting pad frame (16), and the box body (2) is arranged on the height adjusting pad frame (16).

9. An apparatus for machining a bearing bore of a box, according to claim 2, wherein: The boring bar (5) is detachably provided with a boring cutter head (17) at one end facing the box body (2).

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