Clamping device for oil pump shell machining

Abstract

The clamping device for machining the oil pump shell comprises a machining table, the machining table is provided with a machining groove, a workbench is arranged at the bottom of the machining groove, a plurality of first air cylinders are arranged at the bottom of the machining table, and positioning rods are arranged on the first air cylinders. The positioning rods penetrate through the workbench to be matched with auxiliary holes of the oil pump shell in a one-to-one correspondence mode, a first clamping block and a second clamping block which are symmetrical to each other are arranged in the machining groove, a first connecting column is arranged on the first clamping block, and a second connecting column is arranged on the second clamping block. The oil pump shell positioning device has the advantages that the first air cylinder drives the positioning rod to be matched with the auxiliary hole to achieve primary positioning of an oil pump shell, then the second air cylinder drives the first clamping block to move, the rack and gear mechanism drives the second clamping block to move, the first clamping block and the second clamping block are used for positioning the oil pump shell, and the oil pump shell positioning device is simple in structure and convenient to use. Therefore, horizontal and vertical positioning of the oil pump shell is accurately achieved, and the fixing effect is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to tooling fixture technical field, especially a clamping device for oil pump shell machining. BACKGROUND

[0002] In machining, especially for machining oil pump shell, higher precision is required, so the oil pump shell needs to be more stable during fixing. Oil pump is an important component in modern mechanical equipment and is widely used in automobile, aviation, ship, engineering machinery and other fields. The core function of oil pump is to convert mechanical energy into hydraulic energy, thereby realizing the delivery and pressure regulation of liquid. The manufacturing precision and structural stability of oil pump shell, as the main pressure-bearing component of oil pump, directly affect the performance and service life of oil pump. Therefore, the processing technology and tooling fixture design of oil pump shell are crucial in the oil pump manufacturing process.

[0003] In the traditional oil pump shell machining process, the design and manufacture of tooling fixture have the following technical problems: insufficient positioning accuracy; the traditional tooling fixture often adopts a simple positioning method when positioning the oil pump shell, which is prone to cause positioning accuracy to decrease due to machining errors or fixture wear, thereby affecting the machining quality of the oil pump shell, so the shortcoming needs to be improved.

[0004] The prior art exists an oil pump shell 1', which comprises a bottom plate 11', a connecting pipe 12', a mounting pipe 13' and a connecting shell 14', the connecting pipe 12' is connected between the bottom plate 11' and the connecting shell 14', the mounting pipe 13' is connected in the middle of the connecting pipe 12', and the bottom plate 11' is provided with a plurality of process blocks 15', each of which is provided with a process hole 151', and the channels in the mounting pipe 13' and the connecting shell 14' need to be machined. UTILITY MODEL CONTENTS

[0005] The utility model aims at the above problems and provides a clamping device for oil pump shell machining, which has the advantages of precise positioning and clamping.

[0006] To achieve the above object, the utility model provides the following technical scheme: A clamping device for oil pump shell machining, including the machining table, the machining table is equipped with the machining groove, the machining groove bottom is equipped with the work table, the machining table bottom is equipped with a plurality of first air cylinders, the first air cylinder all is equipped with the positioning rod, the positioning rod respectively passes the work table with the process hole of oil pump shell one one correspondence cooperation, be equipped with two first clamping blocks and second clamping blocks in the machining groove, the first clamping block is equipped with the first connecting column, the second clamping block is equipped with the second connecting column, the machining table is equipped with the second cylinder connected with the first connecting column, the second connecting column is in the sliding fit on the machining table, the first clamping block is equipped with the first rack extending along the length direction of the machining table, the second clamping block is equipped with the second rack extending along the length direction of the machining table, the machining table is equipped with the gear cooperation with the first rack and second rack, the first rack and second rack are arranged respectively in the upper and lower ends of the gear.

[0007] Preferably, the first clamping block and the second clamping block are provided with a first groove matched with the connecting pipe, the first clamping block is provided with a first semicircular column, the second clamping block is provided with a second semicircular column, and the first semicircular column and the second semicircular column are both provided with a second groove communicated with the first groove.

[0008] Preferably, the inner walls of the first groove and the second groove are both provided with elastic pads.

[0009] Preferably, the machining table is provided with a pressing assembly, and the pressing assembly is used for abutting against the upper end surface of the oil pump shell.

[0010] Preferably, the pressing assembly comprises a third cylinder, a swing rod and a pressing block abutting against the upper end surface of the oil pump shell, the third cylinder is installed on the machining table, the driving end of the third cylinder is provided with a connecting block, the connecting block is movably matched with the first end of the swing rod, the pressing block is installed on the second end of the swing rod, the machining table is provided with a connecting frame, and the middle part of the swing rod is hinged to the connecting frame.

[0011] Preferably, the swing rod is provided with a waist-shaped hole, the connecting block is provided with a connecting shaft, and the connecting shaft is movably arranged in the waist-shaped hole.

[0012] Preferably, the upper end surface of the work table is provided with two limiting blocks.

[0013] Preferably, the end of the positioning rod is provided with a guide surface.

[0014] Preferably, the machining table is provided with a sliding cavity for sliding of the second connecting column.

[0015] Preferably, the end of the second connecting column is provided with a limiting plate limiting cooperation with the sliding cavity.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This utility model provides a clamping device for processing oil pump housings. The first cylinder drives the positioning rod to cooperate with the process hole to achieve the initial positioning of the oil pump housing. Then, the second cylinder drives the first clamping block to move, thereby driving the second clamping block to move through the rack and pinion mechanism. The first and second clamping blocks are used to position the oil pump housing, thereby accurately achieving the horizontal and vertical positioning of the oil pump housing and achieving better fixing effect. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of an existing oil pump housing;

[0019] Figure 2 This is a three-dimensional structural diagram of the oil pump housing clamping device of this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the present invention without the clamped oil pump housing;

[0021] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0022] Figure 5 for Figure 3 A magnified structural diagram of A in the diagram.

[0023] Figure Descriptions: 1' Oil pump housing; 11' Base plate; 12' Connecting pipe; 13' Mounting pipe; 14' Connecting shell; 15' Process block; 151' Process hole; 1, Machining table; 10, Machining groove; 100, Sliding cavity; 11, Worktable; 21, First cylinder; 22, Positioning rod; 221, Guide surface; 31, First clamping block; 32, Second clamping block; 33, First semi-cylinder; 34, Second semi-cylinder; 35, First connecting column; 36, First groove; 37, Second cylinder; 38, Second groove; 39, Second connecting column; 391, Limiting plate; 41, Third cylinder; 42, Connecting block; 43, Swing rod; 431, Waist-shaped hole; 44, Pressure block; 45, Connecting seat; 46, Connecting shaft; 51, First rack; 52, Second rack; 53, Gear. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] As Figures 1-5 shown, an oil pump housing machining clamping device, comprising a machining table 1, the machining table 1 is equipped with a machining groove 10, the bottom of the machining groove 10 is equipped with a workbench 11, the bottom of the machining table 1 is equipped with a plurality of first air cylinders 21, the first air cylinders 21 are all equipped with positioning rods 22, the positioning rods 22 respectively pass through the workbench 11 and the process hole of the oil pump shell corresponding cooperation, the end of the positioning rod 22 is equipped with a guide surface 221, the guide surface 221 is used to make the positioning rod more easily enter the process hole, the machining groove 10 is equipped with two first clamping blocks 31 and second clamping blocks 32 which are symmetrical to each other, the first clamping block 31 is equipped with a first connecting column 35, the first clamping block 31 is fixedly connected with the first connecting column 35, the second clamping block 32 is equipped with a second connecting column 39, the second clamping block 32 is fixedly connected with the second connecting column 39, the machining table 1 is equipped with a second air cylinder 37 connected with the first connecting column 35, the second connecting column 39 is slidingly fitted on the machining table 1, the first clamping block 31 is equipped with a first rack 51 extending along the length direction of the machining table 1, the second clamping block 32 is equipped with a second rack 52 extending along the length direction of the machining table 1, the machining table 1 is rotatably equipped with a gear 53 matched with the first rack 51 and the second rack 52, the first rack 51 and the second rack 52 are respectively arranged at the upper and lower ends of the gear 53.

[0026] The first clamping block 31 and the second clamping block 32 are both equipped with a first groove 36 matched with the connecting pipe, when the first grooves 36 of the first clamping block 31 and the second clamping block 32 are matched, a first clamping cavity matched with the outer peripheral wall of the connecting pipe is formed, the first clamping block 31 is equipped with a first semicircular column 33, the second clamping block 32 is equipped with a second semicircular column 34, the first semicircular column 33 and the second semicircular column 34 are both equipped with a second groove 38 communicated to the first groove 36, when the second grooves 38 of the first semicircular column 33 and the second semicircular column 34 are matched, a second clamping cavity matched with the outer peripheral wall of the mounting pipe is formed.

[0027] The inner walls of the first groove 36 and the second groove 38 are both equipped with elastic pads, when the first clamping block 31 and the second clamping block 32 are matched, the elastic pads can be matched with the oil pump shell, so that the elastic pads are deformed, thus the friction force can be increased, so that the stability of clamping the oil pump shell is higher.

[0028] The processing table 1 is provided with a pressing assembly for abutting with the upper end surface of the oil pump shell, the pressing assembly comprises a third cylinder 41, a swing rod 43 and a pressing block 44 abutting with the upper end surface of the oil pump shell, the third cylinder 41 is installed on the processing table 1, the driving end of the third cylinder 41 is provided with a connecting block 42, the connecting block 42 is movably connected with the first end of the swing rod 43, the pressing block 44 is installed on the second end of the swing rod 43, the processing table 1 is provided with a connecting frame, the middle part of the swing rod 43 is hinged to the connecting frame, in addition, the swing rod 43 is provided with a waist-shaped hole 431, a connecting shaft 46 is installed on the connecting block 42, and the connecting shaft 46 is movably arranged in the waist-shaped hole 431.

[0029] The upper end surface of the workbench 11 is provided with two limiting blocks for positioning the placement bottom plate.

[0030] The processing table 1 is provided with a sliding cavity 100 for sliding of the second connecting column 39, and the end of the second connecting column 39 is provided with a limiting plate 391 limitingly matched with the sliding cavity 100.

[0031] Specific use: the bottom plate of the oil pump shell is placed on the workbench 11, and the position of the bottom plate in the front-rear direction is positioned by the limiting block, the process hole is initially aligned with the corresponding positioning rod 22, at this time, the positioning rod 22 is moved by starting the first cylinder 21, so that the positioning rod 22 is correspondingly inserted into the process hole, thereby realizing the positioning function of the oil pump shell in the horizontal direction, and then the second cylinder 37 is started to drive the first connecting column 35 to move to the middle part of the processing groove 10, thereby driving the first rack 51 to move, thereby driving the gear 53 to rotate, thereby driving the second rack 52 to move to the middle part of the processing groove 10, so that the first clamping block 31 and the second clamping block 32 move to the side close to each other, so that the first clamping block 31 and the second clamping block 32 realize the clamping and fixing effect on the connecting pipe and the mounting pipe of the oil pump shell, and when the first clamping block 31 and the second clamping block 32 cooperate, the elastic pad can abut with the oil pump shell, so that the elastic pad is deformed, thereby increasing the friction, so that the stability of clamping the oil pump shell is higher, and then the third cylinder 41 is started to drive the connecting block 42 to move upward, thereby driving the swing rod 43 to rotate around the hinge point of the connecting frame, thereby making the pressing block 44 abut with the upper end surface of the oil pump shell, and through the cooperation of the first clamping block 31 and the second clamping block 32 and the abutting of the pressing block 44 with the upper end surface of the oil pump shell, the positioning function of the oil pump shell in the vertical direction during processing is realized.

[0032] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0033] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. An oil pump housing machining clamping device, comprising a machining table (1) provided with a machining groove (10), the bottom of the machining groove (10) is provided with a workbench (11), characterized in that: The processing platform (1) is provided with a plurality of first air cylinders (21), each of which is provided with a positioning rod (22), and the positioning rod (22) passes through the process hole of the workbench (11) and the oil pump shell in a one-to-one corresponding manner. The processing tank (10) is provided with two first clamping blocks (31) and second clamping blocks (32) which are symmetrical to each other. The first clamping block (31) is provided with a first connecting column (35), and the second clamping block (32) is provided with a second connecting column (39). The processing platform (1) is provided with a second air cylinder (37) connected with the first connecting column (35), and the second connecting column (39) is slidably connected with the processing platform (1). The first clamping block (31) is provided with a first rack (51) extending along the length direction of the processing platform (1), and the second clamping block (32) is provided with a second rack (52) extending along the length direction of the processing platform (1). The processing platform (1) is provided with a gear (53) matched with the first rack (51) and the second rack (52), and the first rack (51) and the second rack (52) are arranged at the upper and lower ends of the gear (53) respectively.

2. An oil pump housing machining clamping device according to claim 1, characterized in that: The first clamping block (31) and the second clamping block (32) are provided with a first groove (36) matched with the connecting pipe. The first clamping block (31) is provided with a first semicircular column (33), and the second clamping block (32) is provided with a second semicircular column (34). The first semicircular column (33) and the second semicircular column (34) are both provided with a second groove (38) communicated with the first groove (36).

3. An oil pump housing machining clamping device according to claim 2, characterized in that: The inner wall of the first groove (36) and the second groove (38) is provided with an elastic pad.

4. The clamping device for machining of an oil pump housing according to claim 1, characterized in that: The processing platform (1) is provided with a pressing assembly for abutting with the upper end surface of the oil pump shell.

5. An oil pump housing machining clamping device according to claim 4, characterized in that: The pressing assembly comprises a third air cylinder (41), a swing rod (43) and a pressing block (44) abutting with the upper end surface of the oil pump shell. The third air cylinder (41) is installed on the processing platform (1), and the driving end of the third air cylinder (41) is provided with a connecting block (42). The connecting block (42) is movably connected with the first end of the swing rod (43), and the pressing block (44) is installed on the second end of the swing rod (43). The processing platform (1) is provided with a connecting frame, and the middle part of the swing rod (43) is hinged to the connecting frame.

6. An oil pump housing machining clamping device according to claim 5, characterized in that: The swing rod (43) is provided with a waist-shaped hole (431), and the connecting block (42) is provided with a connecting shaft (46) installed therein.

7. An oil pump housing machining clamping device according to claim 1, characterized in that: The upper end surface of the workbench (11) is provided with two limiting blocks.

8. The clamping device for machining of an oil pump housing according to claim 1, characterized in that: The end of the positioning rod (22) is provided with a guide surface (221).

9. The clamping device for machining of an oil pump housing according to claim 1, characterized in that: The processing platform (1) is provided with a sliding cavity (100) for sliding of the second connecting column (39).

10. The clamping device for machining an oil pump housing according to claim 9, characterized in that: The end of the second connecting column (39) is provided with a limiting plate (391) limiting the sliding cavity (100).

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