New energy gearbox rear shell machining clamp

Abstract

The utility model relates to the field of gearbox machining, and discloses a new energy gearbox rear shell machining clamp which is characterized in that three first hydraulic clamping clamps distributed in a triangular structure are embedded in the upper portion of a bottom plate, and a second hydraulic clamping clamp is arranged between the two first hydraulic clamping clamps on the left side and the rear side; a supporting oil cylinder is arranged under a pressing plate of the second hydraulic clamping fixture, a supporting oil cylinder is arranged on one side face of the hydraulic clamping fixture on the right rear portion, three evenly-distributed guide rods are further arranged on the upper portion of the bottom plate, and a first positioning seat and a second positioning seat are arranged between the second hydraulic clamping fixture and the two adjacent first hydraulic clamping fixtures respectively. The first pressing and clamping fixture and the second pressing and clamping fixture can guarantee that a workpiece is accurately positioned and firmly clamped at a specified position, vibration and deformation in the machining process can be reduced through floating supporting, accurate positioning in the precision machining process can also be guaranteed, and supporting, clamping and quick releasing which cannot be completed by a manual fixture can also be completed.

Description

Technical Field

[0001] The utility model relates to the field of gearbox processing, in particular to a new energy gearbox rear housing processing fixture. Background Art

[0002] After the rear housing of the gearbox is formed, it is necessary to further finish the corresponding positions on the surface of the workpiece, and a fixture is needed to clamp it during the processing. The shape of the rear housing of the gearbox itself is relatively complex. When clamping and fixing it, multiple different fixtures are needed to fix the multiple different positions of the rear housing of the gearbox accordingly, and then clamp and fix it as a whole. This makes the overall clamping and fixing operation more complicated and time-consuming, and the frequent disassembly and assembly of the fixture will take more time, seriously affecting production efficiency, and each time the installation and fixation is performed, it needs to be accurately positioned again, and the large number of fixtures will also lead to inaccurate positioning, which will cause processing position deviation and unqualified product quality. To this end, we designed a new energy gearbox rear housing processing fixture. Utility Model Content

[0003] In order to solve the technical problem of quickly clamping and fixing a rear housing of a gearbox, the utility model provides a new energy gearbox rear housing processing fixture.

[0004] The utility model is implemented by the following technical scheme: a new energy gearbox rear housing processing fixture, including a base, a bottom plate is installed above the base, three hydraulic clamping fixtures 1 distributed in a triangular structure are embedded and installed above the bottom plate, a hydraulic clamping fixture 2 is arranged between the two hydraulic clamping fixtures 1 on the left and rear sides, pressure plates are arranged on the hydraulic clamping fixture 1 and the hydraulic clamping fixture 2, and a support seat is arranged directly below the pressure plate of the hydraulic clamping fixture 1, a supporting oil cylinder is arranged directly below the pressure plate of the hydraulic clamping fixture 2, a supporting oil cylinder is arranged on the side of the hydraulic clamping fixture 1 at the right rear, a supporting oil cylinder head is arranged on the supporting oil cylinder push rod, and three evenly distributed guide rods are also arranged above the bottom plate, and a positioning seat 1 and a positioning seat 2 are respectively arranged between the hydraulic clamping fixture 2 and two adjacent hydraulic clamping fixtures 1.

[0005] As a further improvement of the above scheme, an oil circuit adapter block is embedded above the base, and oil holes are set through the upper and lower parts of the base, an oil circuit is set in the base plate, the oil circuit is connected to the pipeline supporting the oil cylinder, and oil holes are also opened on the side of the base plate, the oil holes are connected to the oil circuit, the oil holes are used to connect the pipeline to the hydraulic clamping fixture 1 and the hydraulic clamping fixture 2, and the oil circuit adapter block is used to connect the machine tool oil circuit.

[0006] As a further improvement of the above solution, a mounting seat is further provided on one side of the hydraulic clamping fixture, the interior of the mounting seat is hollowed out to form a cavity, and the cavity extends downward into the bottom plate, a floating strut is provided inside the mounting seat for upward and downward movement, and a spring is abutted between the bottom end of the floating strut and the bottom end of the cavity;

[0007] A threaded hole is provided on the outer surface of the mounting seat, the threaded hole is connected to the cavity, and a bolt is threadedly connected to the inner surface of the threaded hole. The inner end of the bolt is pressed against the outer surface of the floating support rod to adjust the height and lifting degree of the floating support rod. The floating support can make the contact surface between the tool and the workpiece more uniform, thereby reducing the fluctuation of the grinding surface, and further reducing the vibration and deformation during processing through the floating support.

[0008] As a further improvement of the above scheme, the second positioning seat includes a limit seat fixed on the bottom plate, a limit block is slidably arranged on the limit seat, a key is protrudingly arranged on the limit seat, a key slot is provided below the limit block, the key is slidably placed in the key slot, a screw hole is provided on the limit seat, a strip hole is provided on the limit block, the two are connected by screws, the limit block can be adjusted in position on the limit seat, thereby facilitating the placement of the rear housing of the gearbox, and making the inner side of the limit block fit the rear housing of the gearbox, thereby improving the fixing accuracy;

[0009] The structure of the second positioning seat is the same as that of the first positioning seat.

[0010] As a further improvement of the above-mentioned solution, the inward surface of the limit block is an arc-shaped structure, and the arc-shaped structure set on the inward surface of the limit block matches the outer surface of the rear housing of the gearbox, so that the limit block can fit on the outer surface of the rear housing of the gearbox to ensure accurate positioning during precision machining.

[0011] As a further improvement of the above scheme, a guide rod seat is screwed installed above the base plate, and the guide rod is vertically fixed on the guide rod seat. A strip hole is opened on the guide rod seat, and a screw hole is opened on the base plate, so that the position of the guide rod can be changed as needed, so that the guide rod can fit on the surface of the rear housing of the gearbox, making it easy to quickly position it.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model arranges a positioning seat 1, a positioning seat 2 and a plurality of guide rods above the bottom plate, which can quickly locate the position of the rear housing of the gearbox, thereby facilitating subsequent rapid installation and disassembly;

[0014] 2. The pressure plates of the pressure clamping fixture 1 and the pressure clamping fixture 2, in conjunction with the support seat, floating strut and supporting cylinder, can ensure that the workpiece is accurately positioned and firmly clamped at the specified position, and can reduce vibration and deformation during processing through floating support. The pressure plate can also be used to clamp and lift to clear the clamping position during processing. The hydraulic clamp 1 and the pressure clamping fixture 2 can not only withstand large cutting forces during rough processing, but also ensure accurate positioning during precision processing, and can also complete support, clamping and quick release that manual clamps cannot complete. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a new energy gearbox rear housing processing fixture provided by the utility model;

[0016] Figure 2 for Figure 1 A top view schematic diagram of

[0017] Figure 3 for Figure 2 Sectional view at AA;

[0018] Figure 4 for Figure 1 A schematic diagram of a transmission rear housing is not provided;

[0019] Figure 5 for Figure 3 The schematic diagram of the rear housing of the gearbox is not provided.

[0020] Description of main symbols:

[0021] 1. Base; 11. Bottom plate; 12. Oil circuit adapter block; 2. Mounting seat; 21. Floating strut; 3. Hydraulic clamping fixture 1; 4. Positioning seat 1; 5. Hydraulic clamping fixture 2; 6. Guide rod; 61. Guide rod seat; 7. Positioning seat 2; 71. Limit seat; 72. Limit block; 73. Key; 8. Support seat; 9. Support cylinder; 91. Support cylinder head. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0023] Example:

[0024] Please combine Figure 1-Figure 5A new energy gearbox rear housing processing fixture of the present embodiment includes a base, a bottom plate 11 is installed above the base 1, and three hydraulic clamping fixtures 3 distributed in a triangular structure are embedded and installed above the bottom plate 11. A hydraulic clamping fixture 2 5 is arranged between the two hydraulic clamping fixtures 1 3 on the left and rear sides. A pressure plate is arranged on the hydraulic clamping fixture 1 3 and the hydraulic clamping fixture 2 5, and a support seat 8 is arranged directly below the pressure plate of the hydraulic clamping fixture 1 3, and a supporting cylinder 9 is arranged directly below the pressure plate of the hydraulic clamping fixture 2 5. A supporting cylinder 9 is arranged on the side of the right rear hydraulic clamping fixture 1 3, and a supporting cylinder head 91 is arranged on the push rod of the supporting cylinder 9. Three evenly distributed guide rods 6 are also arranged above the bottom plate 11, and a positioning seat 1 4 and a positioning seat 2 7 are respectively arranged between the hydraulic clamping fixture 2 5 and two adjacent hydraulic clamping fixtures 1 3.

[0025] An oil circuit adapter block 12 is embedded above the base 1, and oil holes are set through the base 1 from top to bottom. An oil circuit is set in the bottom plate 11, and the oil circuit is connected to the pipeline of the supporting cylinder 9. Oil holes are also opened on the side of the bottom plate 11, and the oil holes are connected to the oil circuit. The oil holes are used to connect the pipeline with the hydraulic clamping fixture 1 3 and the hydraulic clamping fixture 2 5. The oil circuit adapter block 12 is used to connect the machine tool oil circuit.

[0026] A mounting seat 2 is also provided on the side of the hydraulic clamping fixture 3. The mounting seat 2 is hollow inside to form a cavity, and the cavity extends downward into the bottom plate 11. A floating strut 21 is provided inside the mounting seat 2 to move up and down, and a spring is abutted between the bottom end of the floating strut 21 and the bottom end of the cavity.

[0027] A threaded hole is provided on the outer surface of the mounting seat 2, which is connected to the cavity, and a bolt is threadedly connected to the inner thread of the threaded hole. The inner end of the bolt is pressed against the outer surface of the floating support rod 21 to adjust the height and lifting degree of the floating support rod 21. The floating support can make the contact surface between the tool and the workpiece more uniform, thereby reducing the fluctuation of the grinding surface, and further reducing the vibration and deformation during processing through the floating support.

[0028] The second positioning seat 7 includes a limit seat 71 fixed on the bottom plate 11, a limit block 72 is slidably provided on the limit seat 71, a key 73 is protruding from the limit seat 71, a key slot is provided below the limit block 72, the key 73 is slidably placed in the key slot, a screw hole is provided on the limit seat 71, a strip hole is provided on the limit block 72, and the two are connected by screws, the limit block 72 can be adjusted on the limit seat 71, so as to facilitate the placement of the rear housing of the gearbox, and the limit block 72 is made to fit the rear housing of the gearbox on the inner side, thereby improving the fixing accuracy;

[0029] The structure of the positioning seat 2 7 is the same as that of the positioning seat 1 4 .

[0030] The inner side surface of the limit block 72 is an arc-shaped structure, and the arc-shaped structure set on the inner side surface of the limit block 72 matches the outer surface of the rear housing of the gearbox, so that the limit block 72 can fit on the outer surface of the rear housing of the gearbox to ensure accurate positioning during precision machining.

[0031] A guide rod seat 61 is screwed onto the top of the bottom plate 11, and the guide rod 6 is vertically fixed on the guide rod seat 61. A strip hole is provided on the guide rod seat 61, and a screw hole is provided on the bottom plate 11, so that the position of the guide rod 6 can be changed as needed, so that the guide rod 6 can fit on the surface of the rear housing of the gearbox, making it easy to quickly position it.

[0032] The implementation principle of a new energy gearbox rear housing processing fixture in the embodiment of the present application is as follows: in actual use, the pressure plates of the hydraulic clamping fixture 1 3 and the hydraulic clamping fixture 2 5 are unfolded and a larger space is provided above the fixture. At this time, the gearbox rear housing can be directly placed above the floating strut 21 and the supporting cylinder head 91, and the outer surface of the gearbox rear housing is in contact with the inner surface of the plurality of guide rods 6 and the positioning seat 1 4 and the positioning seat 2 7. At this time, the gearbox rear housing can be quickly positioned and placed, and then the pressure plates of the clamping fixture 1 and the clamping fixture 2 are pressed above the edge of the gearbox rear housing, so that it can be quickly fixed. When disassembling, the pressure plates of the clamping fixture 1 and the clamping fixture 2 can be unfolded and removed;

[0033] By arranging a positioning seat 1 4, a positioning seat 2 7 and a plurality of guide rods 6 above the bottom plate 11, they can quickly locate the position of the rear housing of the gearbox, thereby facilitating subsequent rapid installation and disassembly;

[0034] The pressure plates of the pressure clamping fixture 1 and the pressure clamping fixture 2 cooperate with the support seat 8, the floating strut 21 and the supporting cylinder 9. The pressure clamping fixture 1 and the pressure clamping fixture 2 can ensure that the workpiece is accurately positioned and firmly clamped at the specified position, and can reduce vibration and deformation during processing through floating support. The pressure plate can also be used to clamp and lift to make way for the clamping position during processing. The hydraulic clamp 1 and the pressure clamping fixture 2 can not only withstand large cutting forces during rough processing, but also ensure accurate positioning during precision processing, and can also complete support, clamping and quick release that manual clamps cannot complete.

[0035] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A new energy gearbox rear housing processing fixture, comprising a base (1), characterized in that: A bottom plate (11) is installed above the base (1), and three hydraulic clamping fixtures (3) distributed in a triangular structure are embedded and installed above the bottom plate (11). A hydraulic clamping fixture (2) (5) is arranged between the two hydraulic clamping fixtures (3) on the left and rear sides. A pressure plate is arranged on the hydraulic clamping fixture (1) (3) and the hydraulic clamping fixture (2) (5), and a support seat (8) is arranged directly below the pressure plate of the hydraulic clamping fixture (1) (3). A supporting cylinder (9) is arranged directly below the pressure plate of the clamping fixture No. 2 (5), a supporting cylinder (9) is arranged on the side of the hydraulic clamping fixture No. 1 (3) at the right rear, a supporting cylinder head (91) is arranged on the push rod of the supporting cylinder (9), three evenly distributed guide rods (6) are also arranged above the bottom plate (11), and a positioning seat No. 1 (4) and a positioning seat No. 2 (7) are respectively arranged between the hydraulic clamping fixture No. 2 (5) and two adjacent hydraulic clamping fixtures No. 1 (3).

2. A new energy gearbox rear housing processing fixture as claimed in claim 1, characterized in that: An oil circuit adapter block (12) is embedded above the base (1), and oil holes are provided through the base (1) from top to bottom. An oil circuit is provided in the bottom plate (11), and the oil circuit is connected to a pipeline of the supporting oil cylinder (9).

3. A new energy gearbox rear housing processing fixture as claimed in claim 1, characterized in that: A mounting seat (2) is also provided on the side of the hydraulic clamping fixture (3), the interior of the mounting seat (2) is hollow to form a cavity, and the cavity extends downward into the bottom plate (11), a floating strut (21) is provided inside the mounting seat (2) to move up and down, and a spring is abutted between the bottom end of the floating strut (21) and the bottom end of the cavity; A threaded hole is provided on the outer surface of the mounting seat (2), the threaded hole is connected to the cavity, a bolt is threadedly connected inside the threaded hole, and the inner end of the bolt is pressed against the outer surface of the floating support rod (21).

4. A new energy gearbox rear housing processing fixture as claimed in claim 1, characterized in that: The second positioning seat (7) comprises a limit seat (71) fixed on the bottom plate (11), a limit block (72) is slidably arranged on the limit seat (71), a key (73) is protrudingly arranged on the limit seat (71), a key slot is provided below the limit block (72), the key (73) is slidably placed in the key slot, a screw hole is provided on the limit seat (71), and a strip hole is provided on the limit block (72), and the two are connected by screws; The structure of the second positioning seat (7) is the same as that of the first positioning seat (4).

5. A new energy gearbox rear housing processing fixture as claimed in claim 4, characterized in that: The inner side surface of the limit block (72) is in an arc-shaped structure, and the arc-shaped structure provided on the inner side surface of the limit block (72) matches the outer surface of the rear housing of the gearbox.

6. A new energy gearbox rear housing processing fixture as claimed in claim 1, characterized in that: A guide rod seat (61) is screw-mounted above the bottom plate (11), and the guide rod (6) is vertically fixed on the guide rod seat (61).

Images