Distribution pipe boring machining clamp

Abstract

The utility model discloses a distribution pipe boring machining clamp which comprises a bottom plate, at least one distribution pipe containing area is arranged at the upper end of the bottom plate, positioning pins are arranged in the distribution pipe containing area, and the positioning pins protrude out of the upper end face of the bottom plate. In the left and right sides of the distribution pipe placement area, one side is provided with a limiting reference block, and the other side is provided with a pressing block; the limiting reference block is connected to the upper end of the bottom plate, and the pressing block is located above the bottom plate. The lower end of the pressing block is connected with a pressing cylinder for driving the pressing block to move up and down; a piston rod of the pressing cylinder penetrates through the bottom plate and is connected to the lower end of the pressing block; the end face, facing the distribution pipe containing area, of the pressing block is an inclined face. The clamping device is simple in structure and convenient to operate, and can be used for clamping the distribution pipe in the boring process of the distribution pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of production of oil rail distribution pipes, in particular to a distribution pipe boring processing fixture. Background Art

[0002] At present, in the manufacturing process of gasoline rails, it is necessary to open several holes on the fuel rail distribution pipe. During the processing, it is necessary to bore the holes on the wall of the fuel rail distribution pipe. During the boring operation, a fixture is usually used to clamp and fix the fuel rail distribution pipe to prevent the fuel rail distribution pipe from shifting during the boring process, thereby affecting the accuracy of the boring operation.

[0003] In the existing production process, the clamp usually includes a base plate, a positioning pin driven by a cylinder, and an inverted U-shaped top pressure block. A limiting groove is provided at the upper end of the base plate, and the power components of the positioning pin and the top pressure block are both cylinders. During operation, the oil rail distribution pipe is first placed in the limiting groove (such as a V-shaped groove) at the upper end of the base plate, and the positioning pin is inserted into a hole along the oblique downward direction for preliminary limiting. Then, the top pressure assembly is used to press the oil rail distribution pipe from top to bottom to achieve the purpose of clamping and fixing the oil rail distribution pipe. However, in the above method, the positioning pin, the top pressure block, and its power component cylinder are generally located above the oil rail distribution pipe. For this reason, it is easy to occupy too much space above the oil rail distribution pipe, and in the subsequent boring operation, it will form a certain obstruction to the boring equipment. Utility Model Content

[0004] The utility model aims to provide a distribution pipe boring processing fixture, which is used to solve the technical problem that the components of the fixture in the prior art easily block the space above the oil rail distribution pipe.

[0005] The utility model has a simple structure and lower cost.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A distribution pipe boring processing fixture comprises a bottom plate, wherein at least one distribution pipe placement area is provided at the upper end of the bottom plate, a positioning pin is provided in the distribution pipe placement area, and the positioning pin protrudes from the upper end surface of the bottom plate; a limit reference block is provided on one side of the left and right sides of the distribution pipe placement area, and a clamping block is provided on the other side;

[0008] The limit reference block is connected to the upper end of the bottom plate, and the pressing block is located above the bottom plate; the lower end of the pressing block is connected to a pressing cylinder that drives the pressing block to move up and down; the pressing cylinder is located below the bottom plate, and the piston rod of the pressing cylinder penetrates the bottom plate and is connected to the lower end of the pressing block;

[0009] The end surface of the pressing block facing the distribution pipe placement area is an inclined surface.

[0010] Furthermore, an auxiliary limit block is provided on the front or rear side of the clamping block, and a limit slot is provided on the auxiliary limit block; the upper end of the limit slot is open and extends longitudinally; a limit pin is provided on one end of the clamping block toward the limit slot, and the limit pin is movably connected to the limit slot up and down.

[0011] Furthermore, the upper end of the bottom plate includes more than two distribution pipe placement areas arranged in sequence from left to right; the pressing block is located between two adjacent distribution pipe placement areas.

[0012] Compared with the prior art, the utility model provides a distribution pipe boring processing fixture, which has the following

[0013] Beneficial effects:

[0014] 1. In the utility model, the clamping cylinder that drives the clamping block to move up and down is arranged below the bottom plate. Specifically, the piston rod of the clamping cylinder penetrates the bottom plate and is connected to the lower end of the clamping block. The clamping cylinder is placed below the bottom plate instead of above the bottom plate, which will not cause excessive obstruction to the space above the bottom plate, leaving more operating space for subsequent boring operations.

[0015] 2. In the utility model, after the pressing block is pressed down, the end face that is in close contact with the wall of the distribution pipe is an inclined face. The inclined face is inclined, and the contact surface between the inclined face and the distribution pipe is relatively small during the pressing process, and the indentation or friction mark produced will also be relatively small.

[0016] The distribution pipe boring processing fixture of the utility model has a simple structure and is easy to manufacture. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a structural schematic diagram of the distribution pipe boring processing fixture in the use state.

[0018] Figure 2 It is a front view of the distribution pipe boring processing fixture in the utility model.

[0019] Figure 3 It is a left view of the distribution pipe boring processing fixture in the utility model.

[0020] Figure 4 It is a top view of the distribution pipe boring processing fixture in the utility model.

[0021] Figure 5 It is a schematic diagram of the connection structure between the pressing block and the pressing cylinder in the utility model.

[0022] In the picture:

[0023] 1-base plate, 2-positioning pin, 3-limit reference block, 4-auxiliary limit block, 5-pressing block, 51-limit pin, 52-inclined surface, 6-pressing cylinder, 7-limiting slide groove, 8-distribution pipe, 9-movable through hole, 10-distribution pipe placement area. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1-5 As shown, the utility model provides a distribution pipe boring processing fixture, which includes a base plate 1, the upper end of the base plate 1 is provided with at least one distribution pipe placement area 10, and the distribution pipe placement area 10 is provided with a positioning pin 2; Figure 1 , 2 As shown in , 4, the positioning pin 2 protrudes from the upper end surface of the bottom plate 1 and is located in the distribution pipe placement area 10. In this embodiment, the distribution pipe placement area 10 refers to the position space area where the distribution pipe 8 is placed on the upper end of the bottom plate 1 and clamped, and the distribution pipe placement area 10 is located at the upper end of the bottom plate 1.

[0026] On the left and right sides of each distribution pipe placement area 10, a limit reference block 3 is provided on one side, and a clamping block 5 is provided on the other side; that is, the distribution pipe placement area 10 is located between the limit reference block 3 and the clamping block 5, and extends forward and backward, and is used to place the distribution pipe 8 (such as Figure 1 In this embodiment, the upper end of the bottom plate 1 includes 8 distribution pipe placement areas 10; the clamp in this embodiment can be used to simultaneously clamp 8 distribution pipes 8. Moreover, after being clamped in the distribution pipe placement area 10, the same distribution pipe 8 is clamped between two limit reference blocks 3 and two clamping blocks 5 (as shown in FIG. Figure 1 shown).

[0027] The side wall of the limit reference block 3 is used as a reference surface to limit the position. During operation, the tube wall of the clamped distribution pipe 8 is close to the side wall of the limit reference block 3, and the distribution pipe 8 close to the side wall of the limit reference block 3 is in a preset position.

[0028] The clamping block 5 and the limit reference block 3 are respectively located on the left and right sides of the distribution pipe placement area 10, and the limit reference block 3 is fixed to the upper end of the bottom plate 1. When the distribution pipe 8 is placed in the distribution pipe placement area 10, the clamping block 5 is pressed down, and the side end surface of the clamping block 5, i.e., the inclined surface 52, presses the pipe wall of the distribution pipe 8. Since the inclined surface 52 is an inclined surface (such as Figure 1 ,2 As shown in FIG. 1 , the distribution pipe 8 will be pressed toward the limit reference block 3 and the distribution pipe 8 will be pressed downward. The distribution pipe 8 is clamped between the clamping block 5 and the limit reference block 3.

[0029] In this embodiment, the pressing block 5 is driven to move up and down by the pressing cylinder 6, and the pressing cylinder 6 is located below the bottom plate 1. Specifically, a movable through hole 9 is provided at the upper end of the bottom plate 1, and the piston rod of the pressing cylinder 6 passes through the movable through hole 9 from bottom to top and is connected to the lower end of the pressing block 5; the piston rod of the pressing cylinder 6 is movably connected to the movable through hole 9. Through the above structure, we place the pressing cylinder 6 below the bottom plate 1 instead of above the bottom plate 1, which will not cause too much obstruction to the space above the bottom plate 1, leaving more operating space for subsequent boring operations.

[0030] At the same time, we also set an auxiliary limit block 4 on the front or rear side of the clamping block 5, which can block the distribution pipe 8 to a certain extent on the side and also play a certain limiting role. In addition, the upper end of the auxiliary limit block 4 is provided with a longitudinally extending limit slot 7, and correspondingly, a limit pin 51 is provided at one end of the clamping block 5 facing the limit slot 7, which moves up and down along the limit slot 7. Figure 1 As shown, the upper end of the limiting slide groove 7 is open, and the limiting pin 51 extends horizontally forward and backward and is connected to the limiting slide groove 7 by sliding up and down. During operation, the limiting pin 51 enters the limiting slide groove 7 downward, and driven by the pressing cylinder 6, the limiting pin 51 moves downward along the limiting slide groove 7. Since one end of the limiting pin 51 is fixedly connected to the pressing block 5, after the limiting pin 51 is inserted into the limiting slide groove 7, the limiting slide groove 7 guides the downward movement of the limiting pin 51, and then indirectly guides the downward movement of the pressing block 5, which can reduce the deviation in the left and right directions during the downward movement of the pressing block 5, so that the pressing block 5 can be more accurately aligned with the pipe wall of the distribution pipe 8 and pressed.

[0031] In addition, if an inverted U-shaped pressing block is used to press the distribution pipe 8 from top to bottom, the contact surface between the inverted U-shaped pressing block and the distribution pipe 8 is large, which is easy to produce excessive indentations or friction marks. However, in this embodiment, the side end surface of the pressing block 5, that is, the inclined surface 52, is an inclined surface, and the contact surface between the inclined surface 52 and the distribution pipe 8 is relatively small, so the indentations or friction marks produced will also be relatively small.

[0032] At the same time, a positioning pin 2 is also provided in the distribution pipe placement area 10 at the upper end of the bottom plate 1. Figure 1 , 2 As shown, the positioning pin 2 protrudes from the upper end surface of the bottom plate 1 and is located between the pressing block 5 and the limit reference block 3. During operation, before pressing the pressing block 5 downward, we put the distribution tube 8 into the upper end of the bottom plate 1, and at the same time align an existing hole on the distribution tube 8 with the positioning pin 2 and insert it downward to achieve preliminary positioning of the distribution tube 8.

[0033] The usage of the distribution pipe boring processing fixture in this embodiment is briefly as follows:

[0034] Place the distribution pipe 8 from top to bottom between the clamping block 5 and the limit reference block 3, and align a hole opened on the wall of the distribution pipe 8 with the positioning pin 2 for insertion; after the distribution pipe 8 is placed on the upper end of the base plate 1, it will be located between the limit reference block 3 and the auxiliary limit block 4.

[0035] Then, the pressing cylinder 6 is started to drive the pressing block 5 to press down, the limiting pin 51 is inserted into the limiting slide groove 7 and moves down along the limiting slide groove 7, and the pressing block 5 presses the wall of the distribution pipe 8, pressing the distribution pipe 8 toward the limiting slide groove 7 and the bottom plate 1, thereby achieving the positioning and fastening of the distribution pipe 8. After the distribution pipe 8 is clamped and fixed, the boring equipment can be used to bore the holes on the distribution pipe.

[0036] like Figure 1 , 3 As shown in Figures 4 and 5, in this embodiment, the upper end of the bottom plate 1 includes 8 distribution pipe placement areas 10 arranged in sequence from left to right. Each of the left and right sides of each pressing block 5 is provided with a distribution pipe placement area 10 (i.e., the pressing block 5 is located between two adjacent distribution pipe placement areas 10), and the left and right end surfaces of the pressing block 5 are both inclined. After the pressing block 5 is pressed down, one pressing block 5 can press against the two distribution pipes 8 on its left and right sides at the same time.

Claims

1. A distribution pipe boring processing fixture, characterized in that: It comprises a bottom plate, wherein at least one distribution pipe placement area is provided at the upper end of the bottom plate, a positioning pin is provided in the distribution pipe placement area, and the positioning pin protrudes from the upper end surface of the bottom plate; one side of the left and right sides of the distribution pipe placement area is provided with a limit reference block, and the other side is provided with a clamping block; The limit reference block is connected to the upper end of the bottom plate, and the clamping block is located above the bottom plate; the lower end of the clamping block is connected to a clamping cylinder that drives the clamping block to move up and down; the clamping cylinder is located below the bottom plate, and the piston rod of the clamping cylinder penetrates the bottom plate and is connected to the lower end of the clamping block; The end surface of the pressing block facing the distribution pipe placement area is an inclined surface.

2. A distribution pipe boring fixture according to claim 1, characterized in that: An auxiliary limit block is provided on the front or rear side of the clamping block, and a limit slot is provided on the auxiliary limit block; the limit slot is open at the upper end and extends longitudinally; a limit pin is provided at one end of the clamping block facing the limit slot, and the limit pin is movably connected to the limit slot up and down.

3. A distribution pipe boring fixture according to claim 1 or 2, characterized in that: The upper end of the bottom plate includes more than two distribution pipe placement areas which are arranged in sequence from left to right; and the pressing block is located between two adjacent distribution pipe placement areas.

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