CN211565235U

CN211565235U - Special fixture for machining lower cover of high-pressure water pump

Info

Publication number: CN211565235U
Application number: CN202021667743.1U
Authority: CN
Inventors: 林卫斌
Original assignee: Suzhou Deyung Cnc Machinery Co ltd
Current assignee: Suzhou Deyung Cnc Machinery Co ltd
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2020-09-25
Anticipated expiration: 2030-08-12

Abstract

The utility model discloses a special fixture for processing a lower cover of a high-pressure water pump, which comprises a bottom plate, a rotation auxiliary mechanism positioned on the bottom plate, an L block and an air passage distributor positioned on the rotation auxiliary mechanism, and a fixture main body positioned on the L block; the L piece includes vertical plate and horizontal plate, and the anchor clamps main part is located the horizontal plate, is provided with supporting structure and hold-down mechanism in the anchor clamps main part, and the anchor clamps main part includes the second station section of being close to the first station section of vertical plate and keeping away from the vertical plate. The utility model adopts a two-in-one distributed processing structure, reduces the clamping times, ensures the concentricity requirement of three holes after the first clamping completes the processing of the three holes, and completes all the processing of parts after the second clamping completes the processing of the three holes; the staff just can move first station section part to the second station section after taking out the finished product, puts the blank on first station section again, starts the anchor clamps switch and steps up, improves the rate of utilization of lathe, improves the machining efficiency of part, machining precision and qualification rate, the cost is reduced.

Description

Special fixture for machining lower cover of high-pressure water pump

Technical Field

The utility model relates to a high pressure water pump anchor clamps, concretely relates to high pressure water pump lower cover processing special fixture.

Background

The concentricity of three holes of a part of a lower cover of a high-pressure water pump is the core of the part, the existing processing is to firstly adopt a die-casting mode to die-cast and form the whole appearance, leave a little processing allowance at the part needing to be processed and process the part through a CNC (computerized numerical control) processing center; the method adopts the mode of multiple processes and multiple clamps for processing, four processes are needed for processing, and one clamp is used for fixing and processing in each process. The machining process is carried out by clamping for many times, accumulated clamping errors exist, the requirement for 3-hole concentricity of the high-pressure water pump lower cover part cannot be met, the precision deviation is large, the rejection rate is high, the machining efficiency is low, the cost of clamps, machine tool equipment and labor is increased, and the quality of the part cannot be guaranteed.

Disclosure of Invention

In order to solve the above problem, the utility model discloses a following technical scheme realizes:

a special fixture for processing a lower cover of a high-pressure water pump comprises a bottom plate, a rotation auxiliary mechanism, an L block, an air passage distributor and a fixture main body, wherein the rotation auxiliary mechanism is positioned on the bottom plate; the L-shaped block comprises a vertical plate and a horizontal plate, the clamp body is positioned on the horizontal plate, a supporting structure and a pressing mechanism are arranged on the clamp body, the clamp body comprises a first station section close to the vertical plate and a second station section far away from the vertical plate, and the supporting structure comprises a first supporting block and a first limiting block which are positioned on the first station section, and a second supporting block and a second limiting block which are positioned on the second station section; hold-down mechanism is including being located first briquetting, first cylinder on the first station section and being located second briquetting, second cylinder on the second station section, the gas circuit distributor is located rotatory complementary unit keeps away from on the side of vertical plate, rotatory complementary unit is close to the L piece one side of vertical plate with install between the bottom plate and increase the height piece, the second briquetting is C type piece, second cylinder upper portion is provided with the recess, the second briquetting is placed the second cylinder in the recess.

Further, the first supporting block comprises four groups, and each group comprises two half ring assemblies which are connected into a ring shape.

Further, the clamp body, the bottom plate, the heightening block and the L blocks are made of 45# steel.

Further, the material of the supporting structure and the pressing mechanism is 40Cr steel.

The utility model has the advantages that:

the utility model adopts a two-in-one distributed processing structure, reduces the clamping times, ensures the concentricity requirement of three holes after the first clamping completes the processing of the three holes, and completes all the processing of parts after the second clamping completes the processing of the three holes; the staff just can move first station section part to the second station section after taking out the finished product, puts the blank on first station section again, starts the anchor clamps switch and steps up, improves the rate of utilization of lathe, improves the machining efficiency of part, machining precision and qualification rate, the cost is reduced.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the main body of the clamp of the present invention.

The reference numbers in the figures illustrate:

1. the clamp comprises a clamp body, 2, a bottom plate, 3, a heightening block, 4, an L block, 5, a supporting structure, 6, a pressing mechanism, 7, a rotation auxiliary mechanism, 8, an air channel distributor, 9, a workpiece, 10, a first supporting block, 11, a first limiting block, 12, a second supporting block, 13, a second limiting block, 14, a first pressing block, 15, a first air cylinder, 16, a second pressing block, 17 and a second air cylinder.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1-2, a special fixture for processing a lower cover of a high-pressure water pump comprises a bottom plate 2, a rotation auxiliary mechanism 7 positioned on the bottom plate 2, an L block 4 and an air channel distributor 8 positioned on the rotation auxiliary mechanism 7, and a fixture main body 1 positioned on the L block 4; the L block 4 comprises a vertical plate and a horizontal plate, the clamp body 1 is positioned on the horizontal plate, a supporting structure 5 and a pressing mechanism 6 are arranged on the clamp body 1, the clamp body 1 comprises a first station section close to the vertical plate and a second station section far away from the vertical plate, and the supporting structure 5 comprises a first supporting block 10 and a first limiting block 11 which are positioned on the first station section, a second supporting block 12 and a second limiting block 13 which are positioned on the second station section; the pressing mechanism 6 comprises a first pressing block 14 located on the first station section, a first air cylinder 15, a second pressing block 16 located on the second station section and a second air cylinder 17, the air channel distributor 8 is located on the side edge, away from the vertical plate, of the rotary auxiliary mechanism 7, the heightening block 3 is installed between one side, close to the vertical plate of the L block 4, of the rotary auxiliary mechanism 7 and the bottom plate 2, the second pressing block 16 is a C-shaped block, a groove is formed in the upper portion of the second air cylinder 17, and the second pressing block 16 is placed in the groove of the second air cylinder 17.

Further, the first support block 10 includes four groups, each group including two half-ring assemblies connected in a ring shape.

Further, the clamp body 1, the bottom plate 2, the heightening block 3 and the L block 4 are made of 45# steel.

Furthermore, the material of the supporting structure 5 and the pressing mechanism 6 is 40Cr steel, and the 40Cr steel needs to be subjected to surface hardening treatment when in use.

The utility model discloses a theory of operation does:

a workpiece 9 is placed on a first station section, primary guiding and positioning are carried out through the guiding of the head of a first limiting block 11 during placement, the contact surface of the part is in contact positioning with a first supporting block 10 after the primary positioning, freedom degree limitation is carried out through the side edge of the first limiting block 11, an M code is started to open a pneumatic switch, and after a first air cylinder 15 is ventilated, the air cylinder acts to drive a first pressing block 14 to press the workpiece 9; after the first process is finished, the workpiece 9 is placed on a second station section according to a second station placing mode, preliminary guiding and positioning are carried out through the guiding direction of the head of a second limiting block 13 during placing, the contact surface of the part is in contact positioning with a second supporting block 12 after preliminary positioning, freedom degree limitation is carried out through the side edge of the second limiting block 13, a second pressing block 16 is placed in a groove of a second air cylinder 17, an M code is started to open a pneumatic switch, and the air cylinder acts to drive the second pressing block 16 to press the workpiece 9 after the second air cylinder 17 is ventilated; and replacing the circulation in sequence for processing.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a special fixture for processing of high pressure water pump lower cover which characterized in that: the clamp comprises a bottom plate (2), a rotation auxiliary mechanism (7) positioned on the bottom plate (2), an L block (4) and an air passage distributor (8) positioned on the rotation auxiliary mechanism (7), and a clamp body (1) positioned on the L block (4); the L-shaped block (4) comprises a vertical plate and a horizontal plate, the clamp body (1) is positioned on the horizontal plate, a supporting structure (5) and a pressing mechanism (6) are arranged on the clamp body (1), the clamp body (1) comprises a first station section close to the vertical plate and a second station section far away from the vertical plate, and the supporting structure (5) comprises a first supporting block (10) and a first limiting block (11) which are positioned on the first station section, and a second supporting block (12) and a second limiting block (13) which are positioned on the second station section; hold-down mechanism (6) are including being located first briquetting (14), first cylinder (15) on the first station section and being located second briquetting (16), second cylinder (17) on the second station section, gas circuit distributor (8) are located rotatory complementary unit (7) are kept away from on the side of vertical plate, rotatory complementary unit (7) are close to L piece (4) one side of vertical plate with install between bottom plate (2) and increase piece (3), second briquetting (16) are C type piece, second cylinder (17) upper portion is provided with the recess, second briquetting (16) are placed in the recess of second cylinder (17).

2. The special fixture for processing the lower cover of the high-pressure water pump according to claim 1, characterized in that: the first supporting block (10) comprises four groups, and each group comprises two semi-ring assemblies which are connected into a ring shape.

3. The special fixture for processing the lower cover of the high-pressure water pump according to claim 2, characterized in that: the clamp body (1), the bottom plate (2), the heightening block (3) and the L block (4) are made of 45# steel.

4. The special fixture for machining the lower cover of the high-pressure water pump according to claim 3, characterized in that: the supporting structure (5) and the pressing mechanism (6) are made of 40Cr steel.