Positioning device of bearing bush milling equipment

Abstract

The utility model provides a positioning device of bearing bush milling equipment, which comprises a sliding table and a locking module, a guide rail is arranged on the sliding table, a sliding block is arranged on the guide rail, and a lathe bed of the milling equipment is arranged on the sliding block; the locking module comprises a fixed seat fixedly arranged on the sliding table and a fixed block fixedly arranged on the lathe bed, a threaded hole is formed in the fixed block, a U-shaped groove is formed in the fixed seat, a front wedge-shaped block and a rear wedge-shaped block are arranged in the U-shaped groove, a first inclined surface and a first positioning surface are arranged on the front wedge-shaped block, and a second inclined surface and a second positioning surface are arranged on the rear wedge-shaped block; a locking block is arranged between the first inclined face and the second inclined face and comprises a third inclined face and a fourth inclined face, the third inclined face is attached to the first inclined face, the fourth inclined face is attached to the second inclined face, a locking screw is connected into the locking block in a threaded mode, and the locking screw is matched with the threaded hole. The problems that in the prior art, a positioning device is not high in positioning stability for bearing bush milling equipment, and maintenance and replacement are difficult are solved.

Description

Technical Field

[0001] This utility model relates to the field of bearing processing equipment technology, and in particular to a positioning device for a bearing milling pin machine. Background Technology

[0002] Bearing shells are important components of automotive generators. Their function is to support the rotating crankshaft, maintain rotational accuracy, and reduce friction and wear between the shaft and the bearing.

[0003] To enable bearing milling equipment to process bearings of different sizes, the bearing mold on the milling equipment needs to be changed according to the size of the bearing to be processed during actual operation. Therefore, to facilitate the replacement of the bearing mold, the existing bearing milling equipment is usually set on a slide table. When the bearing mold needs to be replaced, the bearing milling equipment slides out of the processing station along the slide table so that the operator can replace the bearing mold on the bearing milling equipment. After the replacement is completed, the bearing milling equipment slides back to the processing station along the slide table. In order to ensure the stability of processing, a hydraulic caliper is installed on the slide table to position the bearing milling equipment. However, over time, the hydraulic pressure of the hydraulic caliper will leak, resulting in unstable positioning of the bearing milling equipment. In addition, the location of the hydraulic caliper on the slide table is relatively hidden and narrow, making the maintenance and replacement of the hydraulic caliper very difficult. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a positioning device for a bearing milling pin machine, which solves the problems of weak positioning stability of the existing positioning device for bearing milling equipment and the difficulty of maintenance and replacement.

[0005] To achieve the above and other related objectives, this utility model provides a positioning device for a bearing milling pin machine. The bearing milling machine includes a bed, and the positioning device includes a slide table with a guide rail. A slider is mounted on the guide rail and can slide relative to the guide rail. The bed is mounted on the slider. A locking module includes a fixing seat fixedly mounted on one side of the slide table and a fixing block fixedly mounted on the bottom of one end of the bed. The fixing block has a threaded hole, and the fixing seat has a U-shaped groove. A front wedge block and a rear wedge block are provided within the U-shaped groove. The front wedge block has a first... The rear wedge block has a first inclined surface and a first positioning surface. The rear wedge block has a second inclined surface and a second positioning surface. The first positioning surface is in contact with the front inner wall of the U-shaped groove, and the second positioning surface is in contact with the rear inner wall of the U-shaped groove. A locking block is provided between the first inclined surface and the second inclined surface. The locking block includes a third inclined surface and a fourth inclined surface. The third inclined surface is in contact with the first inclined surface, and the fourth inclined surface is in contact with the second inclined surface. A locking screw is internally threaded into the locking block. The locking block can restrict the locking screw from moving relative to the locking block in its axial direction. The locking screw is adapted to the threaded hole.

[0006] Furthermore, the locking module also includes a tension spring, one end of which is connected to the front wedge and the other end of which is connected to the rear wedge block.

[0007] Furthermore, the locking block is provided with a connecting hole, which includes a first hole section and a second hole section. The diameter of the first hole section is larger than the diameter of the second hole section. The inner wall of the second hole section is provided with an internal thread that matches the locking screw. The bottom of the locking screw is provided with a screwing part, which is embedded in the first hole section and has an internal hexagonal groove. The bottom of the U-shaped groove is provided with a through hole.

[0008] Furthermore, the fixing block is fixedly connected to the bed by screws.

[0009] Furthermore, the fixing base is fixedly connected to the slide by screws.

[0010] Furthermore, the guide rails are provided in two sections, and each guide rail is provided with three sliders.

[0011] As described above, the positioning device of the bearing milling pin equipment of this utility model has the following beneficial effects: the positioning device of the bearing milling equipment of this utility model has a simple structure, strong stability, and is easy to operate because it is set on the side of the slide table. The maintenance of the positioning device is also very convenient. Attached Figure Description

[0012] Figure 1The diagram shown is a structural schematic of the positioning device of the bearing milling pin equipment provided by this utility model.

[0013] Figure 2 The present invention is provided with Figure 1 Enlarged view of point A in the middle.

[0014] Figure 3 The diagram shows the connection relationship between the slide and the locking module provided by this utility model.

[0015] Figure 4 The diagram shown is an exploded view of the locking module provided by this utility model.

[0016] Figure 5 The diagram shown is a structural schematic of the locking block provided by this utility model.

[0017] Explanation of reference numerals in the attached figures

[0018] 10 slides

[0019] 11 guide rails

[0020] 12 sliders

[0021] 20 Locking Module

[0022] 21 Fixed base

[0023] 210 U-shaped groove

[0024] 211 Through Hole

[0025] 22 Fixing Blocks

[0026] 220 threaded hole

[0027] 23 Front wedge block

[0028] 231 First inclined plane

[0029] 232 First positioning surface

[0030] 24 Rear wedge block

[0031] 241 Second Incline

[0032] 242 Second positioning surface

[0033] 25 Locking Blocks

[0034] 250 connecting hole

[0035] 2501 First Hole Section

[0036] 2502 Second Hole Section

[0037] 251 Third inclined plane

[0038] 252 Fourth inclined plane

[0039] 253 Locking screw

[0040] 2531 Tightening section

[0041] 26. Tension Spring

[0042] 30 bed frames

[0043] 40 Allen wrench Detailed Implementation

[0044] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0045] In the description of this utility model, it should be noted that, unless otherwise specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] Please see Figures 1 to 5 It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Therefore, the drawings only show the components related to this utility model and are not drawn according to the actual number, shape and size of the components. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0048] This utility model provides a positioning device (hereinafter referred to as "positioning device") for a bearing milling machine, such as... Figures 1 to 5 As shown, the bearing milling equipment includes a bed 30, and the positioning device includes a slide 10 and a locking module 20. The slide 10 has a guide rail 11, and the guide rail 11 has a slider 12 that can slide relative to the guide rail 11. The bed 30 is mounted on the slider 12. The locking module 20 includes a fixing seat 21 fixedly mounted on one side of the slide 10 and a fixing block 22 fixedly mounted on the bottom of one end of the bed 30. The fixing block 22 has a threaded hole 220, and the fixing seat 21 has a U-shaped groove 210. The U-shaped groove 210 contains a front wedge block 23 and a rear wedge block 24. Specifically, the front wedge block 23 has a first inclined surface 231 and a first positioning surface 232, and the rear wedge block 24 has a second inclined surface 241 and a second positioning surface 242. A positioning surface 232 is in contact with the front inner wall of the U-shaped groove 210, and a second positioning surface 242 on the rear wedge block 24 is in contact with the rear inner wall of the U-shaped groove 210. A locking block 25 is provided between the first inclined surface 231 of the front wedge block 23 and the second inclined surface 241 of the rear wedge block 24. The locking block 25 includes a third inclined surface 251 and a fourth inclined surface 252. The third inclined surface 251 of the locking block 25 is in contact with the first inclined surface 231 on the front wedge block 23, and the fourth inclined surface 252 of the locking block 25 is in contact with the second inclined surface 241 on the rear wedge block 24. A locking screw 253 is internally threaded into the locking block 25, and the locking block 25 can restrict the locking screw 253 from moving relative to the locking block 25 in its axial direction. The locking screw 253 is adapted to the threaded hole 220 on the fixing block 22.

[0049] The beneficial effects of the positioning device of this utility model bearing milling equipment are: when in use, such as Figure 1 and Figure 2As shown, the milling machine bed 30 is in the machining position. At this time, the threaded hole 220 on the fixing block 22 at the bottom of the bed 30 corresponds vertically to the locking screw 253 on the locking module 20. By turning the locking screw 253, the top of the locking screw 253 is screwed into the threaded hole 220 on the fixing block 22. As the locking screw 253 is continuously turned, it will drive the locking block 25 to move upward. Since the third inclined surface 251 of the locking block 25 is in contact with the first inclined surface 231 on the front wedge block 23, and the fourth inclined surface 252 of the locking block 25 is in contact with the second inclined surface 241 on the rear wedge block 24, as the locking... As block 25 moves upward, the third inclined surface 251 and the fourth inclined surface 252 of the locking block 25 will press the front wedge block 23 and the rear wedge block 24 outward respectively. This causes the first positioning surface 232 of the front wedge block 23 to fit tightly against the front inner wall of the U-shaped groove 210, and the second positioning surface 242 of the rear wedge block 24 to fit tightly against the rear inner wall of the U-shaped groove 210. This increases the friction between the front wedge block 23 and the rear wedge block 24 and the fixed seat 21, thereby preventing the fixed block 22 from moving along the length of the guide rail 11, thus restricting the bed 30 from sliding along the guide rail 11, ensuring the stability of the milling equipment during processing, and thus ensuring the processing accuracy of the bearing bush. Therefore, compared with the prior art, the positioning device of the bearing bush milling equipment of this utility model has a simple structure, strong stability, and is easy to operate and maintain because it is set on the side of the slide table 10.

[0050] Specifically, as shown in Figure 1, in this embodiment, the locking module 20 is disposed on the left side of the slide table 10. Furthermore, to improve the stability of the positioning of the bed 30, as shown in Figure 1... Figure 1 As shown, in this embodiment, there are two locking modules 20.

[0051] Furthermore, to prevent the front wedge block 23 and the rear wedge block 24 from being too tightly fitted to the front and rear inner walls of the U-shaped groove 210 when the locking block 25 is loosened, and also to prevent the locking block 25 from falling between the front wedge block 23 and the rear wedge block 24, preferably, as Figure 2As shown, in this embodiment, the locking module 20 further includes a tension spring 26, one end of which is connected to the front wedge block 23, and the other end of which is connected to the rear wedge block 24. With the extension spring 26, when the locking screw 253 is turned, the locking block 25 moves downward. The locking block 25 gradually loses its squeezing force on the front wedge block 23 and the rear wedge block 24. As the locking block 25 continues to move downward, the tension of the extension spring 26 will pull the front wedge block 23 and the rear wedge block 24 to gradually move inward. That is, it pulls the front wedge block 23 away from the front inner wall of the U-shaped groove, so that the first positioning surface 232 is separated from the front inner wall of the U-shaped groove. It also pulls the rear wedge block 24 away from the rear inner wall of the U-shaped groove, so that the second positioning surface 242 is separated from the rear inner wall of the U-shaped groove. In other words, as the locking block 25 moves downward, the extension spring 26 can pull the front wedge block 23 and the rear wedge block 24 to always clamp the locking block 25, preventing the locking block 25 from falling between them.

[0052] Furthermore, such as Figure 4 and Figure 5 As shown, in this embodiment, the locking block 25 is provided with a connecting hole 250. Specifically, the connecting hole 250 includes a first hole segment 2501 and a second hole segment 2502, and the diameter of the first hole segment 2501 is larger than the diameter of the second hole segment 2502, that is, the connecting hole 250 is a countersunk hole. The inner wall of the second hole segment 2502 is provided with an internal thread that is compatible with the locking screw 253. The bottom of the locking screw 253 is provided with a screwing part 2531, which is embedded in the first hole segment 2501, and the screwing part 2531 is provided with an internal hexagonal groove. Correspondingly, a through hole 211 is provided at the bottom of the U-shaped groove 210. With this structural design, when tightening the locking screw 253, a hex wrench 40 can be passed through the through hole 211 and inserted into the internal hexagonal groove on the locking screw 253. The locking screw 253 can then be tightened by turning the hex wrench 40. The operation is simple, time-saving and labor-saving.

[0053] Specifically, in this embodiment, the fixing block 22 is fixedly connected to the bed 30 by screws, and the fixing seat 21 is also fixedly connected by the screw slide 10. The structure is simple and convenient for later disassembly and maintenance.

[0054] Furthermore, in order to improve the stability of the bed 30 moving along the slide 10, such as... Figure 3 As shown, in this embodiment, two guide rails 11 are provided on the slide table 10, and the two guide rails are arranged at intervals. Each guide rail 11 is provided with three sliders 12.

[0055] In summary, the positioning device of this utility model for bearing milling equipment has a simple structure, strong stability, and is easy to operate and maintain because it is located on the side of the slide table. Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0056] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A positioning device for a bearing shell milling apparatus, the bearing shell milling apparatus comprising a bed, characterised in that, The positioning device comprises a sliding table, a guide rail arranged on the sliding table, a sliding block arranged on the guide rail and capable of sliding relative to the guide rail, and a bed body arranged on the sliding block; The locking module comprises a fixed seat fixedly arranged on one side of the sliding table and a fixed block fixedly arranged on the bottom of one end of the bed body, a threaded hole is arranged on the fixed block, a U-shaped groove is arranged on the fixed seat, a front wedge-shaped block and a rear wedge-shaped block are arranged in the U-shaped groove, a first inclined surface and a first positioning surface are arranged on the front wedge-shaped block, a second inclined surface and a second positioning surface are arranged on the rear wedge-shaped block, the first positioning surface is in abutment with the front inner wall of the U-shaped groove, the second positioning surface is in abutment with the rear inner wall of the U-shaped groove, a locking block is arranged between the first inclined surface and the second inclined surface, the locking block comprises a third inclined surface and a fourth inclined surface, the third inclined surface is in abutment with the first inclined surface, the fourth inclined surface is in abutment with the second inclined surface, a locking screw is threadedly connected in the locking block, the locking block can restrict the locking screw from moving relative to the locking block in the axial direction of the locking block, and the locking screw is matched with the threaded hole.

2. A positioning device for a bearing shell milling apparatus as claimed in claim 1, wherein, The locking module further comprises a tension spring, one end of the tension spring is connected with the front wedge-shaped block, and the other end of the tension spring is connected with the rear wedge-shaped block.

3. A positioning device for a bearing shell milling apparatus as claimed in claim 1, wherein, A connecting hole is arranged on the locking block, the connecting hole comprises a first hole section and a second hole section, the diameter of the first hole section is greater than the diameter of the second hole section, an internal thread matched with the locking screw is arranged on the inner wall of the second hole section, a screwing portion is arranged at the bottom of the locking screw, the screwing portion is embedded in the first hole section, an internal hexagonal groove is arranged on the screwing portion, and a through hole is arranged at the bottom of the U-shaped groove.

4. The positioning device for a bearing shell milling apparatus of claim 1, wherein, The fixed block is fixedly connected with the bed body by a screw.

5. The positioning device for a bearing shell milling apparatus of claim 1 wherein, The fixed seat is fixedly connected on the sliding table by a screw.

6. A positioning device for a bearing shell milling apparatus as claimed in claim 1, wherein, The guide rail is provided with two guide rails, and three sliding blocks are arranged on each guide rail.

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