CN220463074U - Transmission right shell machining clamp - Google Patents

Abstract

The utility model provides a processing clamp for a right shell of a transmission, which comprises the following components: the device comprises a bottom plate, a first support column, a second support column, four pressing mechanisms and four supporting seats, wherein the four pressing mechanism enclosing areas are at the clamping position of the right shell of the transmission, one side of each pressing mechanism, which is close to the clamping position of the right shell of the transmission, is provided with one supporting seat, two supporting seats are fixedly arranged on the surface of the bottom plate, the other two supporting seats are respectively arranged at one end, which is far away from the bottom plate, of the first support column and one end, which is far away from the bottom plate, of the second support column, each pressing mechanism comprises a pressing surface, one end, which is far away from the bottom plate, of each supporting seat comprises a supporting surface, the pressing surfaces and the supporting surfaces respectively clamp two opposite sides of the right shell of the transmission, the inner parts of at least three supporting seats are provided with first air passages, and the first air passages are communicated with the supporting surfaces of the supporting seats. The utility model can realize the clamping of the right shell of the transmission and the rapid air detection of the clamping gesture precision, and has good application prospect.

Description

Transmission right shell machining clamp

Technical Field

The utility model relates to the technical field of machining fixtures, in particular to a transmission right shell machining fixture.

Background

The housing of the transmission is usually subjected to finish machining treatment by a numerical control machine tool, and the numerical control machine tool can control the movement track and the machining parameters of the cutter through a program which is changed in advance, so that a high-precision and high-efficiency machining process is realized.

In order to achieve good machining accuracy, the clamp matched with the numerical control machine tool is required to have good clamping accuracy and stability. The existing fixture usually adopts a clamping mechanism to match with a positioning piece so as to position and clamp a shell of a transmission, for example, chinese patent CN111685661A discloses a fixture for processing a shell of the transmission, wherein three groups of clamping mechanisms and two groups of positioning pieces are adopted, the positioning piece is used for positioning the shell, and the clamping mechanism is used for clamping the shell. However, the clamping device still has certain defects, and the main problem is that the positioning piece and the clamping mechanism are usually arranged at three points, the three supporting points support different positions to realize stable clamping, however, when a shell to be processed is inclined relative to a plane where the three supporting points are positioned, even if the three clamping mechanisms are not positioned completely and accurately, the three clamping mechanisms still can realize clamping, at the same time, workpiece processing errors can be caused, and meanwhile, due to deviation of clamping postures, workpiece vibration or movement can be caused in the subsequent machining process, so that processing accidents can be caused, the phenomenon is particularly obvious in the machining process of a right shell of the transmission, and the right shell part of the transmission comprises a shell of a part of an engine, so that the size and the weight of the right shell of the transmission are larger and heavier relative to the left shell, and accurate positioning is not easy.

Therefore, how to improve the clamping precision of the clamp and assist in quickly and effectively identifying the clamping effect is a technical problem to be solved.

Disclosure of Invention

In view of the above, the utility model provides a processing clamp for a right shell of a transmission, which aims to improve the positioning and clamping precision of the right shell of the transmission.

The technical scheme of the utility model is realized as follows: the utility model provides a transmission right shell machining clamp, which comprises: the device comprises a bottom plate, a first support column, a second support column, four pressing mechanisms and four supporting seats, wherein the two pressing mechanisms are fixedly arranged on the surface of the bottom plate on the same side of the first support column and the second support column, one end of the first support column, which is far away from the bottom plate, and one end of the second support column, which is far away from the bottom plate, are fixedly provided with one supporting seat, which is close to the clamping position of the right shell of the transmission, the four pressing mechanisms enclose the clamping position of the right shell of the transmission, one side, which is close to the clamping position of the right shell of the transmission, of each pressing mechanism, the two supporting seats are fixedly arranged on the surface of the bottom plate, the other two supporting seats are respectively arranged on one end, which is far away from the bottom plate, of the first support column and one end, which is far away from the bottom plate, of the pressing mechanisms comprise one pressing surface, the pressing surface is selectively close to the pressing surface under the driving of the pressing mechanisms, two opposite sides, which are respectively clamped on the right shell of the transmission, a first air passage is arranged inside the at least three supporting seats, and the outer surfaces of the supporting seat are communicated with the pressing surface.

In some embodiments, the compressing mechanism comprises a linear driving device, a compression bar and a connecting rod, wherein the driving end of the linear driving device is hinged with one end of the compression bar, the middle part of the compression bar is hinged with one end of the connecting rod, which is far away from the compression bar, is hinged with the bottom plate, the compression face is arranged at one end of the compression bar, which is far away from the linear driving device, and the driving end of the linear driving device reciprocates along the direction perpendicular to the plane where the bottom plate is located.

In some embodiments, the air-jet device is further included, and an air-jet device is disposed on the side face of the supporting seat provided with the first air path, and an air outlet of the air-jet device faces the abutting face.

In some embodiments, the transmission further comprises two elastic positioning pins, the two elastic positioning pins are respectively arranged on the side surfaces of the two supporting seats, two pin holes are formed in the surface of the right shell of the transmission, the positions of the two pin holes correspond to the positions of the two elastic positioning pins, and when the right shell of the transmission is clamped on the clamp, the tail ends of the two elastic positioning pins are respectively embedded into the two pin holes.

In some embodiments, the ends of the resilient locating pins are spherical.

In some embodiments, the transmission further comprises a third support column, a fourth support column and a first adjustable support, wherein the third support column and the fourth support column are arranged on the same side of the first support column and the second support column, and are fixedly arranged on the surface of the bottom plate of the clamping position of the right shell of the transmission, and the first adjustable support is fixedly arranged on the surface of the third support column and the surface of the fourth support column.

In some embodiments, at least one second adjustable support is also included, the second adjustable support being disposed on a floor surface of the transmission right housing clamping position.

In some embodiments, the transmission comprises a transmission right shell, a transmission right shell clamping position, a plurality of limiting blocks, a plurality of guide surfaces and a plurality of guide surfaces, wherein the at least three limiting blocks are fixed on the surface of the base plate, the limiting blocks are arranged along the circumferential array of the transmission right shell clamping position, a limiting surface is arranged on one side, close to the transmission right shell clamping position, of each limiting block, and a guide surface is formed on one side, far away from the base plate, of each limiting surface through chamfering treatment.

In some embodiments, the device further comprises a pressure gauge fixedly arranged on the surface of the bottom plate, wherein a second air passage is formed in the bottom plate and communicated with the first air passage, and the pressure gauge is communicated with the second air passage.

In some embodiments, the device further comprises a profiling support block, and at least one surface of the first support column and the second support column is fixedly provided with the profiling support block.

Compared with the prior art, the transmission right shell machining clamp has the following beneficial effects:

according to the transmission right shell processing clamp, the supporting surface and the first air channel are arranged on the supporting seat, the contact performance between the supporting surface and the transmission left shell to be clamped and processed can be rapidly checked by using the first air channel, and the conclusion of whether the transmission left shell is clamped and positioned can be obtained by filling the pressure gas into the first air channel and judging whether the pressure gas leaks at the supporting surface or not, so that the detection efficiency can be improved, and the detection difficulty is reduced.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an isometric view of a transmission right shell machining jig of the present utility model when clamping a transmission right shell;

FIG. 2 is an isometric view of a transmission right shell tooling fixture of the present utility model;

FIG. 3 is an isometric view of a portion of a pressing mechanism in a right shell tooling fixture of the present utility model;

FIG. 4 is a cross-sectional view of a portion of the pressing mechanism of the right shell tooling fixture of the present utility model;

FIG. 5 is an isometric view of a stop block in the transmission right shell tooling fixture of the present utility model;

fig. 6 is a cross-sectional view of the bottom plate in the transmission right shell tooling fixture of the present utility model.

In the figure: the device comprises a 1-bottom plate, a 2-first supporting column, a 3-second supporting column, a 4-pressing mechanism, a 5-supporting seat, a 6-air injection device, a 7-elastic locating pin, a 8-third supporting column, a 9-fourth supporting column, a 10-first adjustable supporting piece, a 11-second adjustable supporting piece, a 12-limiting block, a 121-limiting surface, a 122-guiding surface, a 13-pressure gauge, a 14-second air channel, a 15-profiling supporting block, a 41-pressing surface, a 42-linear driving device, a 43-pressing rod, a 44-connecting rod, a 51-supporting surface and a 52-first air channel.

Detailed Description

The following description of the embodiments of the present utility model will clearly and fully describe the technical aspects of the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which embodiments of the utility model belong. If the definitions set forth in this section are contrary to or otherwise inconsistent with the definitions set forth in the patents, patent applications, published patent applications and other publications incorporated herein by reference, the definitions set forth in this section are preferentially set forth in the definitions set forth herein.

As shown in fig. 1, in combination with fig. 2 to 6, the transmission right case machining jig of the present utility model includes: the two pressing mechanisms 4 are fixedly arranged on the surface of the bottom plate 1 on the same side of the first supporting column 2 and the second supporting column 3, one end, away from the bottom plate 1, of the first supporting column 2 and one end, away from the bottom plate 1, of the second supporting column 3 are fixedly provided with one supporting seat 5, the enclosing area of the four pressing mechanisms 4 is a transmission right shell clamping position, one side, close to the transmission right shell clamping position, of each pressing mechanism 4 is provided with one supporting seat 5, two supporting seats 5 are fixedly arranged on the surface of the bottom plate 1, the other two supporting seats 5 are respectively arranged on one end, away from the bottom plate 1, of the first supporting column 2 and one end, away from the bottom plate 1, of the second supporting column 3, the pressing mechanisms 4 comprise one pressing surface 41, one end, away from the bottom plate 1, of the supporting seats 5 comprise one supporting surface 51, the pressing surfaces 41 are selectively close to the supporting surfaces 51 under the driving of the pressing mechanisms 4, two opposite sides, opposite to the transmission right shell, of the supporting seats are respectively, the first supporting seat 52 and the outer surface 52 are communicated with the first supporting seat 5.

In the above embodiment, the positions where the first support column 2 and the second support column 3 are connected to the bottom plate 1 and the two pressing mechanisms 4 located on the bottom plate 1 are respectively displaced by four vertexes of a convex quadrilateral, and the enclosed area of the convex quadrilateral is the clamping position of the right casing of the transmission, wherein one side of the right casing of the transmission, which is close to the left casing, is abutted against the supporting seat 5 on the first support column 2 and the supporting seat 5 on the second support column 3, one end of the right casing of the transmission, which is used for installing an output shaft of an engine, is abutted against the two supporting seats 5 on the bottom plate 1, and the pressing mechanisms 4 adjacent to the supporting seats 5 are abutted against and pressed against the surface area of the right casing of the transmission, so that the abutting surface 51 and the pressing surface 41 are both abutted against the surface of the right casing of the transmission, and whether the air source leaks from the opening of the first air passage 52 on the abutting surface 51 is judged, and whether the processing clamp for the right casing of the transmission of the utility model is accurately positioned and clamped.

In some embodiments, the pressing mechanism 4 includes a linear driving device 42, a pressing rod 43 and a connecting rod 44, where the driving end of the linear driving device 42 is hinged to one end of the pressing rod 43, the middle part of the pressing rod 43 is hinged to one end of the connecting rod 44, one end of the connecting rod 44 away from the pressing rod 43 is hinged to the base plate 1, one end of the pressing rod 43 away from the linear driving device 42 is provided with a pressing surface 41, and the driving end of the linear driving device 42 reciprocates along a direction perpendicular to the plane of the base plate 1.

In the above embodiment, the linear driving device 42 may be a driving cylinder, such as a cylinder, a hydraulic cylinder, an electric cylinder, etc., where the driving end of the linear driving device 42 drives one end of the compression rod 43 to reciprocate, and under the hinging action of the connecting rod 44, the end of the compression rod 43 away from the linear driving device 42 reciprocates in the opposite direction, and the end of the compression rod 43 away from the linear driving device 42 is provided with the compression surface 41, and the compression surface selectively approaches or separates from the abutment surface 51 under the reciprocation, so as to implement selective abutment or release on the right casing of the transmission.

In some embodiments, the air injecting device 6 is further included, and one air injecting device 6 is disposed on each side of the supporting seat 5 provided with the first air path 52, and an air outlet of the air injecting device 6 is aligned with the abutting surface 51.

In the above embodiment, the air injection device 6 is used for purging and cleaning the sundries on the surface of the supporting surface 51, so as to avoid the sundries from affecting the adhesion of the supporting surface 51 and the right casing surface of the transmission.

In some embodiments, the transmission further comprises two elastic positioning pins 7, the two elastic positioning pins 7 are respectively arranged on the side surfaces of the two supporting seats 5, two pin holes are formed in the surface of the right shell of the transmission, the positions of the two pin holes correspond to the positions of the two elastic positioning pins 7, and when the left shell of the transmission is clamped on the clamp, the tail ends of the two elastic positioning pins 7 are respectively embedded into the two pin holes.

The elastic positioning pins 7 are used for more accurately positioning the position of the right casing of the transmission, and the number of the elastic positioning pins 7 is preferably two.

In some embodiments, the ends of the elastic positioning pins 7 are spherical.

In the above embodiment, the elastic positioning pin 7 at the spherical end has good alignment difficulty in positioning, good repeated positioning accuracy, and allows the left casing of the transmission to perform a certain degree of angle adjustment in positioning, and meanwhile, the elastic positioning pin of the spherical surface has good looseness prevention performance.

In some embodiments, one of the pin holes is circular and the other pin hole is oblong.

The circular pin holes are used for point positioning, and the pin holes of the oblong holes can allow dimensional errors of the right transmission case.

In some embodiments, the transmission further comprises a third support column 8, a fourth support column 9 and a first adjustable support member 10, wherein the third support column 8 and the fourth support column 9 are all arranged on the same side of the first support column 2 and the second support column 3, and are all fixedly arranged on the surface of the bottom plate 1 at the clamping position of the right shell of the transmission, and the first adjustable support member 10 is fixedly arranged on the surface of the third support column 8 and the surface of the fourth support column 9.

In the above embodiment, in order to adapt to the shape of the right transmission case, the third support column 8 and the fourth support column 9 are respectively used for performing auxiliary limiting on the cavity protruding portion of the engine rotating shaft in the right transmission case, one of the third support column 8 and the fourth support column 9 is arranged on the inner side of the protruding cavity of the engine rotating shaft, the other is arranged on the outer side, and the first adjustable support piece 10 arranged on the third support column 8 and the fourth support column 9 is respectively used for performing auxiliary jacking on the cavity from the inner side surface and the outer side, so that the positioning and clamping effect on the right transmission case is improved.

In some embodiments, at least one second adjustable support 11 is also included, the second adjustable support 11 being provided on the surface of the base plate 1 in the transmission right housing clamping position.

In the above embodiment, the second adjustable supporting member 11 is used for supporting the transmission right housing on the side close to the bottom plate 1, and the number of the second adjustable supporting members 11 may be plural.

In the above embodiment, the first adjustable support member 10 and the second adjustable support member 11 each have an adjustable support end, and the support ends selectively abut against the surface of the right casing of the transmission during adjustment, and the adjustment process may be implemented by using a structure like a cylinder or a hydraulic cylinder or an electric cylinder.

In some embodiments, the transmission further comprises at least three limiting blocks 12, the limiting blocks 12 are all fixed on the surface of the bottom plate 1, the limiting blocks 12 are arranged along a circumferential array of the clamping positions of the right shell of the transmission, a limiting surface 121 is arranged on one side, close to the clamping positions of the right shell of the transmission, of the limiting block 12, and a guiding surface 122 is formed on one side, far away from the bottom plate 1, of the limiting surface 121 through chamfering.

In the above embodiment, the limiting block 12 is used for performing coarse positioning on the right casing of the transmission, and in the positioning process, the guiding surface 122 is first contacted with the surface of the right casing of the transmission and guides, and finally the right casing of the transmission is released from the fiber surface 121, so as to achieve the purpose of coarse positioning and clamping.

In some embodiments, the device further comprises a pressure gauge 13, the pressure gauge 13 is fixedly arranged on the surface of the bottom plate 1, a second air passage 14 is formed in the bottom plate 1, the second air passage 14 is communicated with the first air passage 52, and the pressure gauge 13 is communicated with the second air passage 14.

In the above embodiment, by disposing the second air channel 14 in the base plate 1, the second air channel 14 can be used to communicate with other pneumatic devices mounted on the surface of the base plate 1 and drive the same, it should be understood that the structures mounted on the surfaces of the first support column 2, the second support column 3, the third support column 8 and the fourth support column 9 and needing to communicate with the second air channel 14 can be communicated with the second air channel 14 in the base plate 1 by using separate pipelines, or separate air channels can be opened in the corresponding first support column 2, second support column 3, third support column 8 and fourth support column 9, and the second air channels 14 can be communicated through the air channels in the support columns to realize pneumatic operation. The pressure gauge 13 can more intuitively observe the sealing effect of the abutting surface 51, and improves the gas detection efficiency.

In some embodiments, the device further comprises a profiling support block 15, and at least one surface of the first support column 2 and the second support column 3 is fixedly provided with the profiling support block 15.

In the above embodiment, the profiling support block 15 is used for supporting the right transmission case, and the profiling support block 15 and the right transmission case have mutually matched abutting surfaces.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (10)

1. A transmission right shell machining jig, comprising: the device comprises a bottom plate (1), a first support column (2), a second support column (3), four pressing mechanisms (4) and four supporting seats (5), wherein the two pressing mechanisms (4) are fixedly arranged on the surface of the bottom plate (1) on the same side of the first support column (2) and the second support column (3), one end of the first support column (2) away from the bottom plate (1) and one end of the second support column (3) away from the bottom plate (1) are fixedly provided with one supporting seat (5), the enclosing area of the four pressing mechanisms (4) is a clamping position of a right shell of the transmission, one side of each pressing mechanism (4) close to the clamping position of the right shell of the transmission is provided with one supporting seat (5), two supporting seats (5) are fixedly arranged on the surface of the bottom plate (1), the other two supporting seats (5) are respectively arranged on one end of the first support column (2) away from the bottom plate (1) and one end of the second support column (3) away from the bottom plate (1), one end of each supporting seat (5) away from the bottom plate (1) comprises one pressing surface (41), one end of each supporting seat (5) away from the bottom plate (1) comprises one pressing surface (51) and one pressing surface (51) is respectively pressed against the two opposite pressing surfaces (51) on the two opposite pressing surfaces (51) of the two pressing surfaces (51), the inside of at least three supporting seats (5) is provided with a first air passage (52), and the first air passage (52) is communicated with the supporting surface (51) and the outer surface of the supporting seat (5).

2. The transmission right shell machining jig according to claim 1, wherein: the compressing mechanism (4) comprises a linear driving device (42), a compression rod (43) and a connecting rod (44), wherein the driving end of the linear driving device (42) is hinged with one end of the compression rod (43), the middle part of the compression rod (43) is hinged with one end of the connecting rod (44), one end of the connecting rod (44) away from the compression rod (43) is hinged with the bottom plate (1), one end of the compression rod (43) away from the linear driving device (42) is provided with a compressing surface (41), and the driving end of the linear driving device (42) reciprocates along the plane direction perpendicular to the bottom plate (1).

3. The transmission right shell machining fixture according to claim 1, further comprising an air injection device (6), wherein the side surfaces of the supporting seat (5) provided with the first air passage (52) are respectively provided with an air injection device (6), and the air outlet of the air injection device (6) is opposite to the abutting surface (51).

4. The transmission right-hand member processing jig according to claim 1, further comprising two elastic positioning pins (7), wherein the two elastic positioning pins (7) are provided on the side surfaces of the two support seats (5), respectively, the transmission right-hand member surface is provided with two pin holes, the positions of the two pin holes correspond to the positions of the two elastic positioning pins (7), and when the transmission right-hand member is clamped on the jig, the ends of the two elastic positioning pins (7) are embedded in the two pin holes, respectively.

5. Transmission right-hand case machining jig according to claim 4, characterized in that the end of the elastic locating pin (7) is spherical.

6. The transmission right shell machining clamp according to claim 1, further comprising a third support column (8), a fourth support column (9) and a first adjustable support member (10), wherein the third support column (8) and the fourth support column (9) are both arranged on the same side of the first support column (2) and the second support column (3), and are both fixedly arranged on the surface of the bottom plate (1) at the clamping position of the transmission right shell, and the surface of the third support column (8) and the surface of the fourth support column (9) are both fixedly provided with the first adjustable support member (10).

7. The transmission right shell machining jig according to claim 1, further comprising at least one second adjustable support (11), the second adjustable support (11) being provided on a surface of the base plate (1) in a transmission right shell clamping position.

8. The transmission right shell machining clamp according to claim 1, further comprising at least three limiting blocks (12), wherein the limiting blocks (12) are fixed on the surface of the bottom plate (1), the limiting blocks (12) are arranged along a circumferential array of transmission right shell clamping positions, a limiting surface (121) is arranged on one side, close to the transmission right shell clamping positions, of the limiting blocks (12), and a guiding surface (122) is formed on one side, far away from the bottom plate (1), of the limiting surface (121) through chamfering.

9. The transmission right shell machining clamp according to claim 1, further comprising a pressure gauge (13), wherein the pressure gauge (13) is fixedly arranged on the surface of the bottom plate (1), a second air passage (14) is formed in the bottom plate (1), the second air passage (14) is communicated with the first air passage (52), and the pressure gauge (13) is communicated with the second air passage (14).

10. The transmission right shell machining fixture according to claim 1, further comprising a profiling support block (15), wherein at least one surface of the first support column (2) and the second support column (3) is fixedly provided with the profiling support block (15).