Clamping device for fuel injection pump ejector rod machining

Abstract

The utility model relates to the technical field of fuel injection pump ejector rod machining, in particular to a clamping device for fuel injection pump ejector rod machining, a plurality of fixing clamping blocks are arranged on one side of a base, connecting columns are fixedly arranged on the fixing clamping blocks, sliding grooves are formed in the connecting columns, and sliding columns are arranged in the sliding grooves in a sliding mode. A first groove and an installation block are arranged on the sliding column, a first spring is fixedly installed in the first groove, an auxiliary clamping block is arranged on one side of the installation block in a sliding mode, a second groove is formed in the auxiliary clamping block, and a second spring is fixedly installed in the second groove and used for supporting a long ejector rod raw material; and the ejector rod raw material is prevented from drooping or shaking due to self-weight away from the clamped part in the machining process, and the machining stability is ensured.

Description

Technical Field

[0001] This utility model relates to the field of fuel injection pump pushrod processing technology, and more specifically, to a clamping device for processing fuel injection pump pushrods. Background Technology

[0002] The fuel injection pump pushrod is a crucial component of the fuel injection pump, used to convert the rotational motion of the camshaft into the reciprocating motion of the fuel injection pump plunger, thereby achieving timed and metered fuel injection. It is typically made of high-strength alloy steel with a hardened surface treatment to ensure good wear resistance and fatigue resistance under high-pressure and high-frequency operating conditions. The pushrod's structural design is precise, including parameters such as the shape and size of the head, and the diameter and length of the rod body. These parameters need to be precisely matched with other components of the fuel injection pump to ensure the accuracy and stability of fuel injection, which in turn affects the engine's power output and fuel economy. Therefore, a clamping device is required to hold the fuel injection pump pushrod during its machining process.

[0003] For example, Chinese patent disclosure: A clamping device for drill pipe processing, application number: CN201821473718.2, includes a base, a processing table and a support frame. A processing motor is installed on the support frame, and a processing drill bit is connected to the bottom of the processing motor. The characteristic is that a clamping device is provided on the processing table. The clamping device includes a placement table and clamping blocks arranged on both sides of the placement table. A pushing cylinder is provided on one side of the clamping block. This clamping device for drill pipe processing can improve the processing efficiency by processing 2-3 workpieces at one time by adding the clamping device, and further increase economic benefits. It is very worthwhile to use in the drill pipe processing industry.

[0004] However, in the aforementioned technical solutions, during the machining of the fuel injection pump ejector rod, the raw material is typically a slender metal rod, with a length much greater than its diameter. Due to the slender structure of the ejector rod material, during machining, the material far from the clamping part is prone to sagging or wobbling due to its own weight, leading to a decrease in machining accuracy and potentially causing machining errors or tool damage. Especially in high-precision machining (such as turning, grinding, or drilling), the stability of the ejector rod directly affects the machining quality and the yield rate of the finished product. Utility Model Content

[0005] The main objective of this invention is to provide a clamping device for machining fuel injection pump ejector rods. This device effectively solves the problem in the prior art where, during the machining of fuel injection pump ejector rods, the raw material is typically a slender metal rod, with a length much greater than its diameter. Due to the slender structure of the ejector rod material, the material far from the clamping area is prone to sagging or wobbling under its own weight during machining, leading to decreased machining accuracy and potentially causing machining errors or tool damage. Especially in high-precision machining (such as turning, grinding, or drilling), the stability of the ejector rod directly affects the machining quality and the yield rate of the finished product.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a clamping device for machining an injection pump pushrod, comprising a base, a plurality of fixed clamping blocks provided on one side of the base, a connecting column fixedly provided on the fixed clamping blocks, a sliding groove provided on the connecting column, a sliding column slidably provided in the sliding groove, a first groove and a mounting block provided on the sliding column, a first spring fixedly installed in the first groove, an auxiliary clamping block slidably provided on one side of the mounting block, a second groove provided on the auxiliary clamping block, and a second spring fixedly installed in the second groove.

[0007] Preferably, one side of the first spring is fixedly connected to the inner wall surface of the slide groove away from the slide column, and one side of the second spring is fixedly connected to the mounting block.

[0008] Preferably, the base includes a base body, which is provided with a plurality of third grooves and a plurality of guide grooves. A guide slider is slidably disposed in the guide groove, and a through groove is provided on the guide slider.

[0009] Preferably, a rotating disk is provided between the third groove and the guide groove, and a plurality of arc-shaped grooves are inclinedly provided on the rotating disk. A guide column is provided in the arc-shaped grooves, a rotating column is provided on one side of the rotating disk, a motor is provided on the rotating column, and a slot is provided on one side of the base body.

[0010] Preferably, the through groove passes through the guide slider and the guide column, the rotating disk is rotatably connected to the base body, the guide column is rotatably connected to the guide slider, and the motor is fixedly installed on the base body.

[0011] Preferably, the fixing block is fixedly connected to the guide slider, and the connecting post passes through the through groove.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] (1) In this utility model, one end of the push rod material is placed into the slot, and then the push rod material is clamped and fixed by the fixing block. At the same time, the fixing block drives the connecting column to move, and one end of the connecting column moves in the third groove. The connecting column drives the sliding column to move, and the sliding column drives the mounting block to move. The mounting block drives the auxiliary clamping block to move through the second spring, so that the auxiliary clamping block moves towards the push rod material. The auxiliary clamping block is used to assist in clamping and fixing the side of the push rod material away from the slot. At the same time, during the processing, by squeezing the sliding column, the sliding column can be moved along the direction of the sliding groove. The elasticity of the first spring can make the sliding column extend and retract during the processing to support the long push rod material and prevent the push rod material away from the clamping part from sagging or shaking due to its own weight during the processing, thus ensuring the stability of the processing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a clamping device for machining an injection pump pushrod according to the present invention;

[0015] Figure 2 This is a schematic diagram of the internal structure of a clamping device for machining an injection pump pushrod according to the present invention;

[0016] Figure 3 This is a schematic diagram of the base structure in a clamping device for machining an injection pump pushrod according to the present invention;

[0017] Figure 4 This is a rear view of the base structure in a clamping device for machining an injection pump pushrod according to the present invention.

[0018] In the diagram: 1. Base; 101. Base body; 102. Third groove; 103. Guide slide; 104. Guide slider; 105. Through groove; 106. Rotating disk; 107. Arc-shaped slide; 108. Guide slide column; 109. Rotating column; 1010. Motor; 1011. Slot; 2. Fixing clamp; 3. Connecting column; 4. Slide; 5. Slide column; 6. First groove; 7. First spring; 8. Mounting block; 9. Auxiliary clamp; 10. Second groove; 11. Second spring. Detailed Implementation

[0019] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0020] like Figure 1 and Figure 2As shown, a clamping device for machining an injection pump pushrod includes a base 1. A plurality of fixed clamping blocks 2 are provided on one side of the base 1. A connecting column 3 is fixedly provided on the fixed clamping block 2. A sliding groove 4 is provided on the connecting column 3. A sliding column 5 is slidably provided in the sliding groove 4. A first groove 6 and a mounting block 8 are provided on the sliding column 5. A first spring 7 is fixedly installed in the first groove 6. An auxiliary clamping block 9 is slidably provided on one side of the mounting block 8. A second groove 10 is provided on the auxiliary clamping block 9. A second spring 11 is fixedly installed in the second groove 10.

[0021] like Figure 3 and Figure 4 As shown, in another embodiment of the present invention, the base 1 includes a base body 101, the base body 101 is provided with a plurality of third grooves 102 and a plurality of guide grooves 103, a guide slider 104 is slidably disposed in the guide groove 103, and a through groove 105 is provided on the guide slider 104.

[0022] A rotating disk 106 is provided between the third groove 102 and the guide slide 103. Several arc-shaped slides 107 are inclinedly provided on the rotating disk 106. A guide slide post 108 is provided in the arc-shaped slide post 107. A rotating post 109 is provided on one side of the rotating disk 106. A motor 1010 is provided on the rotating post 109. A slot 1011 is provided on one side of the base body 101.

[0023] When the fixed clamping block 2 needs to be moved, the rotating column 109 is rotated by the motor 1010. The rotating column 109 drives the rotating disk 106 to rotate. The rotating disk 106 causes the guide column 108 to gradually move towards the center of the rotating disk 106 through the arc-shaped slide groove 107. The guide column 108 drives the guide slider 104 to move, and the guide slide groove 103 restricts the movement direction of the guide slider 104. The guide slider 104 drives the fixed clamping block 2 to move.

[0024] Working principle of a clamping device for machining an injection pump pushrod:

[0025] In use, one end of the push rod material is placed into the slot 1011. Then, the motor 1010 rotates the rotating column 109, which in turn rotates the rotating disk 106. The rotating disk 106, through the arc-shaped sliding groove 107, causes the guide slide column 108 to gradually move towards the center of the rotating disk 106. The guide slide column 108 drives the guide slider 104 to move, and the guide groove 103 restricts the direction of movement of the guide slider 104. The guide slider 104 drives the fixed clamp 2 to move, and the fixed clamp 2 clamps and fixes the push rod material. At the same time, the fixed clamp 2 drives the connecting column 3 to move, and one end of the connecting column 3 is in the third groove 102. The connecting column 3 moves the sliding column 5, which in turn moves the mounting block 8. The mounting block 8, via the second spring 11, moves the auxiliary clamping block 9, which moves towards the push rod material. The auxiliary clamping block 9 is used to clamp and fix the side of the push rod material away from the slot 1011. Simultaneously, during processing, by squeezing the sliding column 5, the sliding column 5 can move along the direction of the slide groove 4. The elasticity of the first spring 7 allows the sliding column 5 to extend and retract during processing to support longer push rod materials. This prevents the push rod material from sagging or swaying due to its own weight when it is far from the clamping part during processing, ensuring processing stability.

[0026] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. All obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.

Claims

1. A clamping device for processing of a top rod of a fuel injection pump, comprising a base (1), characterized in that: The base (1) is provided with a plurality of fixed clamping blocks (2) on one side, the fixed clamping blocks (2) are fixedly provided with connecting columns (3), the connecting columns (3) are provided with sliding grooves (4), the sliding grooves (4) are slidably provided with sliding columns (5), the sliding columns (5) are provided with first grooves (6) and mounting blocks (8), the first grooves (6) are fixedly installed with first springs (7), the mounting blocks (8) are slidably provided with auxiliary clamping blocks (9) on one side, the auxiliary clamping blocks (9) are provided with second grooves (10), and the second grooves (10) are fixedly installed with second springs (11).

2. The clamping device for processing the top rod of fuel injection pump according to claim 1, characterized in that: The first spring (7) is fixedly connected with the inner wall surface of the side of the sliding groove (4) away from the sliding column (5), and the second spring (11) is fixedly connected with the mounting block (8).

3. The clamping device for processing the top rod of fuel injection pump according to claim 2, characterized in that: The base (1) comprises a base body (101), a plurality of third grooves (102) and a plurality of guide sliding grooves (103) are arranged on the base body (101), the guide sliding grooves (103) are slidably provided with guide sliding blocks (104), and the guide sliding blocks (104) are provided with through grooves (105).

4. The clamping device for processing the top rod of fuel injection pump according to claim 3, characterized in that: The third grooves (102) and the guide sliding grooves (103) are provided with rotating discs (106), the rotating discs (106) are obliquely provided with a plurality of arc-shaped sliding grooves (107), the arc-shaped sliding grooves (107) are provided with guide sliding columns (108), the rotating discs (106) are provided with rotating columns (109) on one side, the rotating columns (109) are provided with motors (1010), and the base body (101) is provided with a slot (1011) on one side.

5. The clamping device for processing the top rod of fuel injection pump according to claim 4, characterized in that: The through grooves (105) penetrate the guide sliding blocks (104) and the guide sliding columns (108), the rotating disc (106) is rotatably connected with the base body (101), the guide sliding column (108) is rotatably connected with the guide sliding block (104), and the motor (1010) is fixedly installed on the base body (101).

6. The clamping device for processing the top rod of fuel injection pump according to claim 5, characterized in that: The fixed clamping block (2) is fixedly connected with the guide sliding block (104), and the connecting column (3) penetrates the through groove (105).

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