Fixing tool for machining cambered surface of plunger pump swing frame

Abstract

The utility model discloses a fixing tool for processing a cambered surface of a plunger pump swing frame, which comprises a base, supporting columns extending outwards are fixedly arranged on the left side and the right side of the base, and positioning plates for placing the plunger pump swing frame to be processed are detachably arranged on the upper side and the lower side of the base. Positioning pins are inserted into the front side and the rear side of the base; the screw rod is vertically arranged and penetrates through the base and the two positioning plates; the pressing plates are oppositely arranged on the screw rod, located on the outer side of the positioning plate and used for clamping the plunger pump swing frame to be machined; and the mounting disc is arranged on the supporting column in a sleeving manner. According to the utility model, the problems of inaccurate positioning and low machining efficiency caused by non-uniform clamping force due to the fact that a universal fixture or a manual fixing mode is usually adopted for machining the existing swing frame can be solved.

Description

Technical Field

[0001] This utility model relates to the field of plunger pump processing technology, specifically a fixed tooling for machining the arc surface of a plunger pump swing frame. Background Technology

[0002] The rocker arm of a plunger pump is one of the core components, supporting and guiding the movement of the plunger to ensure stable and efficient operation. The machining accuracy of the rocker arm directly affects the performance, lifespan, and reliability of the plunger pump. Currently, rocker arm machining typically employs CNC machine tools or specialized machining equipment. However, due to its complex structure and irregular shape, the requirements for clamping and positioning during machining are extremely high. Existing technologies often use general-purpose fixtures or manual fixing methods, which suffer from inaccurate positioning, uneven clamping force, and low machining efficiency, easily leading to workpiece deformation or damage. Therefore, a new fixture for machining the curved surface of the plunger pump rocker arm is designed to meet current usage requirements. Utility Model Content

[0003] This utility model provides a fixing fixture for machining the arc surface of a plunger pump swing frame, which can solve the problems of inaccurate positioning and uneven clamping force that result in low machining efficiency in existing swing frame machining methods that usually use general-purpose clamps or manual fixing.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a fixed fixture for machining the arc surface of a plunger pump swing frame, comprising a base, with outwardly extending support columns fixedly arranged on the left and right sides of the base, and positioning plates for placing the plunger pump swing frame to be machined detachably arranged on the upper and lower sides of the base, and positioning pins inserted on the front and rear sides of the base; a screw, which is vertically arranged and passes through the base and the two positioning plates; a pressure plate, which is arranged opposite to the screw and located outside the positioning plates, for clamping the plunger pump swing frame to be machined; and a mounting plate, which is sleeved on the support columns to ensure the accurate position of the swing frame during machining, improve machining accuracy, and prevent the swing frame from moving or deforming during machining.

[0005] Preferably, the pressure plate is provided with a U-shaped slot, which has a simple structure and is easy to install.

[0006] Preferably, the inner side of the mounting plate is provided with a clearance groove to avoid interference with the swing frame.

[0007] Preferably, the positioning pin includes a positioning pin body inserted into the side of the base, and one side of the positioning pin body is provided with a positioning part that is inserted into the plunger pump swing frame, which is easy to process and ensures the accurate positioning of the swing frame.

[0008] Preferably, the side of the base is provided with a mounting hole that matches the positioning pin body, which facilitates the installation and removal of the positioning pin.

[0009] Preferably, the upper and lower ends of the screw are screwed with first bolts on the outer side of the positioning plate to fix the positioning plate.

[0010] Preferably, a second bolt is screwed onto the screw on the outside of the pressure plate to fix the pressure plate.

[0011] Preferably, a third bolt is screwed onto the support column on the outside of the mounting plate to fix the mounting plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] With a simple structure and convenient operation, it can quickly complete the clamping and disassembly of the swing frame. Through the cooperation of positioning pins and positioning plates, it ensures the accurate positioning of the swing frame during processing, improving processing accuracy. It can process two products simultaneously, improving processing efficiency. It can solve the problems of inaccurate positioning and uneven clamping force that lead to low processing efficiency in the current processing of swing frames, which usually uses general-purpose fixtures or manual fixing methods. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional structural diagram of the installed product of this utility model;

[0016] Figure 3 This is an exploded view of the present invention;

[0017] Figure 4 This is a schematic diagram of the base structure of this utility model;

[0018] Figure 5 This is a three-dimensional structural diagram of the positioning pin of this utility model;

[0019] Figure 6 This is a three-dimensional structural diagram of the installation disc of this utility model.

[0020] Figure label:

[0021] 1. Base, 2. Support column, 3. Plunger pump swing frame, 4. Positioning plate, 5. Positioning pin, 51. Positioning pin body, 52. Positioning part, 6. Screw, 7. Pressure plate, 71. U-shaped slot, 8. Mounting plate, 81. Clearance groove, 9. First bolt, 10. Second bolt, 11. Mounting hole, 12. Third bolt. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] like Figure 1-6 As shown, this utility model addresses the problem that existing swing frame machining typically uses general-purpose fixtures or manual fixing methods, resulting in inaccurate positioning, uneven clamping force, and low machining efficiency. The present invention provides the following technical solution: A fixing fixture for machining the arc surface of a plunger pump swing frame, comprising a base 1, with outwardly extending support columns 2 fixedly arranged on the left and right sides of the base 1; detachable positioning plates 4 for placing the plunger pump swing frame 3 to be machined on the upper and lower sides of the base 1; positioning pins 5 inserted on the front and rear sides of the base 1; a screw 6, vertically arranged and passing through the base 1 and the two positioning plates 4; a pressure plate 7, positioned opposite the screw 6 on the outside of the positioning plates 4, used to clamp the plunger pump swing frame 3 to be machined; and a mounting plate 8, sleeved on the support columns 2, ensuring accurate positioning of the swing frame 3 during machining, improving machining accuracy, and preventing the swing frame from moving or deforming during machining.

[0024] In this embodiment, as Figure 3 As shown, the pressure plate 7 is provided with a U-shaped slot 71, which has a simple structure and is easy to install.

[0025] In this embodiment, as Figure 6 As shown, the inner side of the mounting plate 8 is provided with a clearance groove 81 to avoid interference with the swing frame 3.

[0026] In this embodiment, as Figure 5 As shown, the positioning pin 5 includes a positioning pin body 51 inserted into the side of the base 1. One side of the positioning pin body 51 is provided with a positioning part 52 that is inserted into the plunger pump swing frame 3. It is easy to process and ensures the accurate positioning of the swing frame 3.

[0027] In this embodiment, as Figure 4 As shown, the base 1 has a mounting hole 11 on its side that matches the positioning pin body 51, which facilitates the installation and removal of the positioning pin 5.

[0028] In this embodiment, as Figure 1 As shown, the upper and lower ends of the screw 6 are screwed with first bolts 9 on the outer side of the positioning plate 4 to fix the positioning plate 4.

[0029] In this embodiment, as Figure 1 As shown, a second bolt 10 is screwed onto the screw 6 on the outside of the pressure plate 7 for fixing the pressure plate 7.

[0030] In this embodiment, as Figure 1As shown, a third bolt 12 is screwed onto the support column 2 on the outside of the mounting plate 8 for fixing the mounting plate 8.

[0031] In this embodiment, as Figure 2 As shown, two plunger pump swing frames 3 to be processed are placed on the positioning plate 4 through the screw 6. The outer side wall of the positioning plate 4 matches the shape of the groove at the bottom of the plunger pump swing frame 3 and is roughly positioned there. The positioning pin 5 passes through the side of the plunger pump swing frame 3 and is inserted into the mounting hole 11 of the base 1. The positioning part 52 precisely positions the plunger pump swing frame 3 in the hole of the plunger pump swing frame 3. The U-shaped slot 71 of the pressure plate 7 is placed on the screw 6. The pressure plate 7 is operated by the second bolt 10 to fix the plunger pump swing frame 3. The fixing mounting plate 8 is sleeved on the support column 2. The side of the fixing mounting plate 8 is in contact with the side wall of the plunger pump swing frame 3. The fixing mounting plate 8 is operated by the third bolt 12 to fix the plunger pump swing frame 3, thus completing the fixing of the plunger pump swing frame 3. The processing operation is then carried out. After the processing is completed, the pressure plate 7, the positioning pin 5 and the fixing mounting plate 8 are loosened, and the plunger pump swing frame 3 is taken out.

[0032] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0033] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly and specifically defined.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A fixing tool for rocker arm camber machining of a plunger pump rocker, characterized in that, Include: The base (1), the left and right sides of the base (1) are fixedly provided with outwardly extending support columns (2), the upper and lower sides of the base (1) are detachably provided with positioning plates (4) for placing the to-be-processed plunger pump swing frame (3), and the front and rear sides of the base (1) are inserted with positioning pins (5); Screw rod (6), vertically arranged and passing through the base (1) and two positioning plates (4); The pressing plate (7) is oppositely arranged on the screw rod (6) outside the positioning plate (4) for clamping the to-be-processed plunger pump swing frame (3); The mounting disc (8) is sleeved on the support column (2).

2. The fixture for cambering of a rocker of a plunger pump according to claim 1, characterized in that: The pressing plate (7) is provided with a U-shaped slot (71).

3. The fixture for cambering of a rocker shaft of a plunger pump according to claim 1, characterized in that: The inner side of the mounting disc (8) is provided with an avoiding groove (81).

4. The fixture for cambering of a rocker shaft of a plunger pump according to claim 1, characterized in that: The positioning pin (5) includes a positioning pin body (51) inserted into the side of the base (1), and the side of the positioning pin body (51) is provided with a positioning part (52) inserted into the plunger pump swing frame (3).

5. The fixture for cambering of a rocker shaft of a plunger pump according to claim 4, characterized in that: The side of the base (1) is provided with a mounting hole (11) matched with the positioning pin body (51).

6. The fixture for cambering of a rocker shaft of a plunger pump according to claim 1, characterized in that: The upper and lower ends of the screw rod (6) are rotatably provided with first bolts (9) outside the positioning plate (4).

7. The fixture for cambering of a rocker shaft of a plunger pump according to claim 1, characterized in that: The screw rod (6) is rotatably provided with a second bolt (10) outside the pressing plate (7).

8. The fixture for cambering of a rocker shaft of a plunger pump according to claim 1, characterized in that: The third bolt (12) is rotatably arranged on the support column (2) outside the mounting disc (8).

Images