Hydraulic clamp for quick remodeling of oil sprayer body

Abstract

The utility model discloses a hydraulic clamp for rapid remodeling of an oil sprayer body, and belongs to the technical field of oil sprayer machining. The quick remodeling device comprises a bottom plate, a quick remodeling unit and a positioning and fixing assembly, the bottom plate is connected with a machine tool, the quick remodeling unit is an integrated module, the quick remodeling unit is installed on the bottom plate through the positioning and fixing assembly, and the quick remodeling unit can be installed and disassembled on the bottom plate. The quick change-over unit is an integrated module, the quick change-over unit is mounted and dismounted on the bottom plate only through the positioning and fixing assembly, so that different types of clamp subunits are quickly switched, dismounting and mounting are convenient, and the cost is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fuel injector processing, in particular to a hydraulic clamp for rapid type change of a fuel injector body. Background Art

[0002] In the automobile manufacturing industry, the common rail system is an important fuel supply system in diesel engines, and the injector body is an important part of the high-pressure fuel injection system. The positioning and size requirements of the injector body in the engine are high. When the injector body is processed, the inner hole size is first positioned and fine-machined based on the outer circle reference, and then the high-pressure oil inlet hole and outer circle thread are fine-machined using the fine-machined surface as the reference. Only in this way can the dimensional chain accuracy of each hole system of the injector body be guaranteed.

[0003] At present, most of the processing methods for injector bodies adopt traditional methods. The disadvantage of traditional methods is that the positioning of parts depends on the blank surface and manual positioning, and the processing accuracy is greatly affected by the reference error of the outer circle blank. The existing processing of injector bodies adopts more advanced hydraulic positioning fixtures, which can realize fixture positioning and hydraulic clamping. After simple installation and clamping, the position accuracy of parts is high and the consistency is stable, which better meets the processing requirements of injector bodies.

[0004] The parts of hydraulic clamps can maintain high precision during continuous processing, but if the model needs to be changed frequently, the disassembly and assembly of the clamp parts is cumbersome, and there are certain requirements for the preservation of the scattered parts of the clamp. If maintenance is required, the entire clamp including the clamp block must be sent out for maintenance, which is difficult to transport and wastes resources. Utility Model Content

[0005] In view of the above problems existing in the replacement and maintenance of hydraulic clamps, the utility model provides a hydraulic clamp for rapid change of injector body, and its specific scheme is as follows:

[0006] A hydraulic fixture for rapid mold change of an injector body comprises a base plate, a rapid mold change unit and a positioning and fixing assembly, wherein the base plate is connected to a machine tool, the rapid mold change unit is an integrated module, and the rapid mold change unit is mounted on the base plate through the positioning and fixing assembly to realize the installation and removal of the rapid mold change unit on the base plate;

[0007] The positioning and fixing assembly includes three positioning bolts, which are distributed on the quick-change unit and connected to the base plate;

[0008] The quick-change unit includes a mounting plate, a clamping assembly and a positioning assembly, wherein: the mounting plate is connected to the base plate through positioning bolts; the clamping assembly and the positioning assembly are fixed on the mounting plate to clamp and position the parts.

[0009] The quick-change unit provided in the present application is an integrated module. The quick-change unit can be installed and removed on the base plate only by positioning and fixing the components, thereby realizing fast switching of different types of fixture sub-units, which is convenient for assembly and disassembly and saves costs.

[0010] The quick change unit is mounted on the base plate by means of positioning bolts, which play a fool-proof role during installation.

[0011] By fixing the clamping assembly and the positioning assembly on the mounting plate, and the mounting plate being mounted on the base plate through positioning bolts, the quick-change unit can position and clamp the parts to be processed, thereby facilitating processing.

[0012] In some embodiments, the clamping assembly includes a hydraulic cylinder base, a hydraulic cylinder, a hydraulic ram, a clamping cylinder and a hydraulic clamp block that are arranged at intervals, wherein: the hydraulic cylinder base and the clamping cylinder are fixed on a mounting plate; the hydraulic cylinder is installed on the hydraulic cylinder base, and the hydraulic ram is connected to the output end of the hydraulic cylinder for clamping parts left and right; the hydraulic clamp block is installed at the output end of the clamping cylinder for clamping parts up and down.

[0013] The two hydraulic cylinders drive the hydraulic jack to clamp the parts in the left and right directions, and the clamping cylinder drives the hydraulic clamp to clamp the parts up and down, so that the processed parts are completely fixed and the precise positioning of the parts to be processed is achieved.

[0014] In some embodiments, the positioning assembly includes a pre-positioning block and an angular positioning block fixed to the mounting plate for positioning the part.

[0015] The position and angle of the parts to be processed can be quickly pre-positioned by the pre-positioning block and the angular positioning block. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of this application.

[0017] Figure 2 This is a top view of the present application.

[0018] Figure 3 This is a side sectional view of the present application.

[0019] 1. Base plate; 2. Positioning bolt; 3. Quick change unit; 31. Mounting plate; 32. Hydraulic cylinder base; 33. Hydraulic cylinder; 34. Hydraulic jack; 35. Clamping cylinder; 36. Hydraulic clamp; 37. Pre-positioning block; 38. Angular positioning block; 4. Processed parts. DETAILED DESCRIPTION

[0020] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0021] like Figures 1 to 3 As shown, the present application provides a hydraulic clamp for quick mold change of an injector body, comprising a base plate 1, a quick mold change unit 3 and a positioning and fixing assembly, wherein the base plate 1 is connected to a machine tool, the quick mold change unit 3 is an integrated module, and the quick mold change unit 3 is mounted on the base plate 1 through a positioning and fixing assembly, thereby realizing the installation and disassembly of the quick mold change unit 3 on the base plate 1.

[0022] The positioning and fixing assembly includes three positioning bolts 2 distributed on the quick-change unit 3. The positioning bolts 2 are connected to the base plate 1. The quick-change unit 3 can be disassembled from the base plate 1, and the position of the bolts can play a fool-proof role during installation.

[0023] The quick-change unit 3 includes a mounting plate 31, a clamping assembly and a positioning assembly, wherein: the mounting plate 31 is connected to the base plate 1 by a positioning bolt 2; the clamping assembly includes two hydraulic cylinder bases 32, a hydraulic cylinder 33, a hydraulic jack 34, a clamping cylinder 35 and a hydraulic clamp block 36, wherein: the two hydraulic cylinder bases 32 are spaced apart and fixed on the mounting plate 31, the hydraulic cylinder 33 is mounted on the hydraulic cylinder base 32, the hydraulic jack 34 is connected to the driving end of the hydraulic cylinder 33, so that the hydraulic cylinder 33 drives the hydraulic jack 34 to clamp the parts in the left and right directions; the clamping cylinder 35 is fixed on the mounting plate 31, and the hydraulic clamp block 36 is connected to the output end of the clamping cylinder 35, so that the clamping cylinder 35 drives the hydraulic clamp block 36 to clamp the parts up and down, so that the part 4 to be processed is completely fixed, and the precise positioning of the part 4 to be processed is achieved.

[0024] The positioning assembly includes a pre-positioning block 37 and an angular positioning block 38 fixed on the mounting plate 31, which can quickly realize the position and angle pre-positioning of the part 4 to be processed.

[0025] The specific working process of the hydraulic clamp in this application is as follows:

[0026] When the fixture clamps the parts, the position and angle are first quickly pre-positioned through the pre-positioning block 37 and the angular positioning block 38, and then the part to be processed 4 is clamped by the hydraulic head 34 and the hydraulic pressure plate, so that the clamped part is completely fixed and accurately positioned; when it is necessary to switch to different types of fixture sub-units, it is only necessary to remove the positioning bolts 2 on each quick-change unit 3 to disassemble the quick-change unit 3.

[0027] In the present application, the bottom plate 1 is connected to the machine tool. When switching, there is no need to remove the bottom plate 1 from the machine tool, and the sub-parts on the quick change unit 3 do not need to be removed. They can be kept as a whole and directly installed for the next use.

[0028] Furthermore, two sides of the base plate 1 are connected to four-axis rotating devices to achieve four-axis precision machining.

[0029] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be interpreted as limiting the present invention itself. Various changes can be made to it in form and detail without departing from the spirit and scope of the present invention defined in the appended claims.

Claims

1. A hydraulic clamp for rapid changeover of an injector body, characterized in that: The hydraulic clamp comprises a base plate, a quick mold change unit and a positioning and fixing assembly, wherein the base plate is connected to the machine tool, the quick mold change unit is an integrated module, and the quick mold change unit is mounted on the base plate through the positioning and fixing assembly to realize the installation and removal of the quick mold change unit on the base plate; The positioning and fixing assembly includes three positioning bolts, which are distributed on the quick-change unit and connected to the base plate; The quick change unit includes a mounting plate, a clamping assembly and a positioning assembly, wherein: The mounting plate is connected to the base plate via the positioning bolts; The clamping assembly and the positioning assembly are fixed on the mounting plate and are used for clamping and positioning parts.

2. A hydraulic clamp for rapid changeover of injector body according to claim 1, characterized in that: The clamping assembly includes a hydraulic cylinder base, a hydraulic cylinder, a hydraulic jack, a clamping cylinder and a hydraulic clamp block which are arranged at intervals, wherein: The hydraulic cylinder base and the clamping cylinder are fixed to the mounting plate; The hydraulic cylinder is installed on the hydraulic cylinder base, and the hydraulic ram is connected to the output end of the hydraulic cylinder to clamp parts on the left and right sides; The hydraulic clamp is installed at the output end of the clamping cylinder and is used to clamp parts up and down.

3. A hydraulic clamp for rapid changeover of injector body according to claim 1, characterized in that: The positioning assembly comprises a pre-positioning block and an angular positioning block fixed on the mounting plate, and is used for positioning the parts.

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