Dispensing tube positioning needle visual press-fit jig

Abstract

The utility model discloses a kind of distribution pipe positioning needle visual press-fit clamps.The press-fit clamp includes vertical plate, and the front end surface of vertical plate is connected with the distribution pipe end top pressure assembly and distribution pipe limiting assembly distributed up and down;Distribution pipe limiting assembly includes several distribution pipe positioning blocks and at least one distribution pipe positioning needle distributed along vertical direction;Distribution pipe positioning block is fixed on the front end surface of vertical plate, and the front end of distribution pipe positioning block is equipped with distribution pipe positioning recess;Distribution pipe positioning needle is vertically fixed on the front end surface of the vertical plate;The left side or right side of distribution pipe positioning needle on the front end surface of vertical plate is also connected with mirror;Mirror surface of mirror is towards distribution pipe positioning needle direction, and the included angle between mirror surface and the front end surface of vertical plate is greater than 90 degrees.

Description

Technical Field

[0001] This utility model relates to the field of oil rail distribution pipe press-fitting technology, and in particular to a visual press-fitting fixture for distribution pipe positioning pins. Background Technology

[0002] During the manufacturing process of the fuel distribution pipe, press-fitting equipment is required to press-fit components (such as end caps or connectors) to the ports of the fuel distribution pipe. In the partial end cap press-fitting operation, the distribution pipe is assembled in a designated position on the press-fitting fixture, which is mounted on the moving block of the press-fitting equipment. The lower port of the distribution pipe on the press-fitting fixture faces downwards, and the end cap to be pressed is positioned directly below the lower port of the distribution pipe by the end cap fixture.

[0003] During the press-fit assembly of the distribution pipe and the end cap, the moving block of the press-fitting equipment can drive the press-fitting fixture equipped with the distribution pipe to move down synchronously. When the lower pipe end of the distribution pipe is aligned and spliced ​​with the end cap below, the top pressing block of the press-fitting equipment applies downward pressure to the distribution pipe from top to bottom. At the same time, the moving block of the press-fitting equipment continues to drive the press-fitting fixture equipped with the distribution pipe to press down synchronously until the end cap and the lower pipe end are press-fitted together.

[0004] The moving block of the pressing equipment is the moving part of the pressing equipment, which can drive the pressing fixture to move up and down; the top pressure block of the pressing equipment is the part used to apply pressure to the workpiece in the pressing equipment.

[0005] Existing press-fit fixtures generally include a vertical plate, with a distribution pipe limiting block and a distribution pipe positioning pin fixed to the front end of the plate. The front end of the distribution pipe limiting block has a distribution pipe limiting groove. The distribution pipe wall has a distribution pipe limiting hole for the distribution pipe positioning pin to insert into. During the distribution and feeding operation (i.e., the process of the distribution pipe being assembled into the designated position on the press-fit fixture), the distribution pipe is inserted into the distribution pipe limiting groove from front to back, while the distribution pipe limiting hole is aligned with the distribution pipe positioning pin for insertion. Then, a limiting component (such as a quick clamp) is placed on the front side of the distribution pipe to prevent it from tilting forward. Finally, the press-fit equipment moving block is activated to continue the subsequent end cap and distribution pipe mating press-fit operation.

[0006] During the feeding process of the aforementioned distribution pipe, the operator faces the upright plate, grasps the distribution pipe, and aligns the limiting hole of the distribution pipe with the positioning pin of the distribution pipe on the front face of the upright plate. Since the limiting hole of the distribution pipe is located on the back of the distribution pipe at this time, and the positioning pin of the distribution pipe is located behind the distribution pipe and is blocked by the distribution pipe, the operator cannot clearly observe the end of the positioning pin of the distribution pipe and the opening of the limiting hole of the distribution pipe during the feeding process. As a result, it is difficult for the operator to quickly and accurately align the opening of the limiting hole of the distribution pipe with the end of the positioning pin of the distribution pipe and insert it. This leads to low operating efficiency and easy operation errors. Utility Model Content

[0007] The purpose of this invention is to provide a visual pressing fixture for the positioning pin of the distribution tube, solving the technical problem in the prior art where the opening of the limiting hole of the distribution tube is difficult to accurately align with the positioning pin during the process of feeding the distribution tube onto the vertical plate. This invention has a simple structure and lower cost.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A visual pressing fixture for positioning pins of a distribution tube includes a vertical plate and a pressing assembly for pressing the distribution tube; the front end face of the vertical plate is connected to a distribution tube end pressing assembly and a distribution tube limiting assembly distributed vertically.

[0010] The distribution tube limiting assembly includes a plurality of distribution tube positioning blocks distributed along the vertical direction and at least one distribution tube positioning pin; the distribution tube positioning blocks are fixed to the front end face of the upright plate, and the front end of the distribution tube positioning blocks is provided with a distribution tube positioning groove; the distribution tube positioning pin is vertically fixed to the front end face of the upright plate.

[0011] A mirror is also connected to the left or right side of the distribution tube positioning pin on the front end face of the upright plate; the mirror surface faces the distribution tube positioning pin, and the angle between the mirror surface and the front end face of the upright plate is greater than 90 degrees.

[0012] Furthermore, it also includes a mirror fixing block; the lower end of the mirror fixing block is bolted to the upright plate; the mirror is fixed to the upper end face of the mirror fixing block.

[0013] Furthermore, the upright plate is also provided with at least two through-holes for positioning the upright plate.

[0014] Furthermore, a left handle and a right handle are also connected to the upright plate; the left handle and the right handle are located on the left and right sides of the distribution tube limiting assembly.

[0015] Furthermore, the left and right handles are staggered vertically and located at different heights.

[0016] Furthermore, the distribution pipe end pressing assembly includes a pressure rod, a pressure rod fixing support, and a spring; the pressure rod fixing support is fixedly connected to the front end face of the upright plate; the pressure rod fixing support is provided with a vertically penetrating sliding hole, and the pressure rod is inserted into the sliding hole; the upper end of the pressure rod is connected to a pressure head, and a limiting part is fixedly connected to the outer wall of the pressure rod; the limiting part is located below the pressure rod fixing support; the spring is located between the lower end of the pressure head and the upper end of the pressure rod fixing support, and the spring is sleeved on the outer ring of the pressure rod.

[0017] Furthermore, the clamping assembly includes a rotary cylinder connected to the left or right side of the upright plate, the piston rod of the rotary cylinder extending forward and backward, and a horizontal arm pressure plate connected to the front end of the piston rod of the rotary cylinder; the horizontal arm pressure plate and the piston rod of the rotary cylinder are perpendicular to each other.

[0018] Compared with the prior art, this utility model provides a visual pressing fixture for positioning pins of a distribution tube, which has the following advantages:

[0019] In this invention, a mirror is connected to the left or right side of the distribution tube positioning pin on the front end face of the upright plate; the mirror surface faces the distribution tube positioning pin, and the angle between the mirror surface and the front end face of the upright plate is greater than 90 degrees.

[0020] By using the aforementioned mirror, during the feeding process of the distribution tube, the operator facing the upright plate can see the distribution tube positioning pin and the distribution tube limiting hole through the mirror, thereby quickly and accurately aligning the distribution tube limiting hole with the distribution tube positioning pin, allowing the distribution tube positioning pin to be quickly inserted into the distribution tube limiting hole, thus improving the distribution tube feeding process and reducing the risk of operational errors. Attached Figure Description

[0021] Figure 1 This is a three-dimensional view of the visual pressing fixture for the positioning pin of the distribution tube in this utility model.

[0022] Figure 2 This is a left view of the visual pressing fixture for the distribution tube positioning pin in this utility model.

[0023] Figure 3 This is the main view of the visual pressing fixture for the positioning pin of the distribution tube with a pressing component in this utility model. Figure 1 .

[0024] Figure 4 This is the main view of the visual pressing fixture for the positioning pin of the distribution tube with a pressing component in this utility model. Figure 2 .

[0025] Figure 5 This is a left view of the front windshield assembly in this utility model.

[0026] In the picture:

[0027] 1-Upright plate, 2-Distribution pipe positioning block one, 3-Distribution pipe positioning block two, 4-Upright plate positioning sleeve hole one, 5-Upright plate positioning sleeve hole two, 6-Pressure rod, 7-Pressure rod fixing support, 8-Distribution pipe positioning pin, 9-Pressure head, 10-Spring, 11-Left handle, 12-Right handle, 13-Distribution pipe, 14-Mirror surface, 15-Rotary cylinder, 16-Piston rod, 17-Horizontal arm pressure plate, 18-Limiting part, 19-Sliding sleeve. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figures 1 to 5 As shown, this utility model provides a visual pressing fixture for positioning pins of a distribution tube. The pressing fixture includes a vertical plate 1, on which a distribution tube end pressing component and a distribution tube limiting component are connected vertically distributed on the front end face of the vertical plate 1.

[0030] The press-fit fixture is mounted on the moving block of the press-fitting equipment and is used to assemble the distribution pipe. During the press-fitting process, the moving block of the press-fitting equipment moves the press-fit fixture with the distribution pipe mounted on it up and down synchronously. The pressing block of the press-fitting equipment can press down on the end pressing assembly of the distribution pipe, and the end pressing assembly of the distribution pipe presses down on the distribution pipe. Furthermore, after the lower end of the distribution pipe aligns with the end cap located below it, the pressing block and the moving block of the press-fitting equipment press down synchronously, ultimately achieving the press-fit connection between the end cap and the lower port of the distribution pipe.

[0031] like Figure 1 and Figure 2 As shown, the distribution tube limiting assembly includes a distribution tube positioning block 1 2, a distribution tube positioning pin 8, and a distribution tube positioning block 2 3 distributed vertically from top to bottom. The two distribution tube positioning blocks (distribution tube positioning block 1 2 and distribution tube positioning block 2 3) are fixed to the front end face of the upright plate 1, and each of the front ends of distribution tube positioning block 1 2 and distribution tube positioning block 2 3 is provided with a distribution tube groove; while the distribution tube positioning pin 8 is vertically fixed to the front end face of the upright plate 1 and is located between distribution tube positioning block 1 2 and distribution tube positioning block 2 3.

[0032] Specifically, such as Figure 2 As shown, the rear end of the distribution pipe positioning block 1 2, the rear end of the distribution pipe positioning block 2 3, and the rear end of the distribution pipe positioning pin 8 are fixed to the front end surface of the upright plate 1.

[0033] During feeding, the distribution tube 13 is simultaneously placed into the two distribution tube grooves from front to back, and the distribution tube positioning pin 8 is inserted into the distribution tube positioning hole on the tube wall of the distribution tube 13. Figure 1 As shown.

[0034] Preferably, a mirror (a mirror with a metal reflective film coated on its back) is also connected to the left or right side of the distribution tube positioning pin 8 on the front end face of the upright plate 1; the mirror surface 14 faces the distribution tube positioning pin 8, and the angle between the mirror surface 14 and the front end face of the upright plate 1 is greater than 90 degrees, for example, the angle between the mirror surface 14 and the front end face of the upright plate 1 can be 135 degrees. Through the mirror surface 14, the position of the distribution tube positioning pin 8 and the positioning hole of the distribution tube during the feeding operation can be better observed.

[0035] In this embodiment, a mirror fixing block is also included; the lower end of the mirror fixing block is bolted to the upper end of the upright plate 1; a mirror (such as a mirror with a thin sheet shape) is fixed to the upper end face of the mirror fixing block, and the upper end face of the mirror fixing block is inclined from left to right, with the distribution tube positioning pin 8 located on the left side of the mirror fixing block. Specifically, a threaded blind hole (i.e., a hole that does not penetrate the mirror fixing block and has internal threads machined on the hole wall) can be provided at the lower end of the mirror fixing block, and a through hole that runs through the front and back is provided on the upright plate 1, which also has internal threads.

[0036] During assembly, bolts are screwed into the through holes and blind holes sequentially to achieve a detachable threaded connection between the mirror fixing block and the upright plate 1. This detachable connection allows for the replacement of the mirror fixing block. Without replacing the existing mirror fixing block, after unscrewing the bolts, the radial angle of the mirror surface and mirror fixing block assembly can be adjusted according to the operator's needs before the bolts are screwed back into the through holes and blind holes. This results in a change in the orientation of the mirror surface after the mirror fixing block and upright plate 1 are bolted back together.

[0037] In addition, during the pressing process, the mirror may be damaged or broken due to accidental collision. This detachable bolt connection method can also achieve the purpose of quick disassembly and replacement of spare mirrors.

[0038] In this embodiment, the distribution pipe end pressing assembly is located above the distribution pipe limiting assembly, and is used to press the end of the distribution pipe 13 from top to bottom, thereby pressing the distribution pipe 13 downwards and finally press-fitting the end cap to the end of the distribution pipe. Specifically, the distribution pipe end pressing assembly includes a pressure rod 6, a pressure rod fixing support 7, and a spring 10; the pressure rod fixing support 7 is fixedly connected to the front end face of the upright plate 1; the pressure rod fixing support 7 is provided with a sliding hole that runs vertically through it, and the pressure rod 6 is inserted into the sliding hole; the upper end of the pressure rod 6 is connected to a pressure head 9, and a limiting part 18 is fixedly connected to the outer wall of the pressure rod 6; the limiting part 18 is located below the pressure rod fixing support 7; the spring 10 is located between the lower end of the pressure head 9 and the upper end of the pressure rod fixing support 7, and the spring 10 is sleeved on the outer ring of the pressure rod 6. The lower end of the pressure rod fixing support 7 is also fixedly connected to a sliding sleeve 19 that serves as a guide. The sliding sleeve 19 is sleeved on the outer ring of the pressure rod 6 and is located between the limiting part 18 and the lower end of the pressure rod fixing support 7.

[0039] The pressure head 6 is a component that directly contacts the top pressure block of the pressing equipment; while the lower end of the pressure rod 6 directly contacts the upper end of the distribution pipe 13.

[0040] When the upper end of the pressure head 6 is not pressed down by the pressure block of the pressing equipment, the spring 10 is tensioned between the lower end of the pressure head 9 and the upper end of the pressure rod fixing support 7. At this time, the top end of the limiting part 18 abuts against the lower end of the sliding sleeve 19, thereby restricting the longitudinal movement of the pressure rod 6, and the lower end of the pressure rod 6 remains at a fixed height.

[0041] After the upper end of the pressure head 6 is pressed down by the pressure block of the pressing equipment, the spring 10 contracts, the pressure rod 6 is pressed downward, and the lower end of the pressure rod 6 moves down to contact and press against the upper end face of the distribution pipe 13. When the pressure at the upper end of the pressure head 6 is removed, the spring 10 returns to its original position, and the pressure rod 6 is driven to move upward and return to its original position. At the same time, the presence of the spring 10 can also play a buffering role, buffering part of the force when the pressure block of the pressing equipment is pressed down to the dead point.

[0042] Preferably, in this embodiment, the upright plate 1 is further provided with at least two through-holes (i.e., upright plate positioning hole 4 and upright plate positioning hole 5), each upright plate positioning hole matching the positioning insert at the front end of the pressing equipment moving block. When the two positioning inserts are inserted into the two upright plate positioning holes from back to front, the rear end of the upright plate 1 abuts against the front end of the pressing equipment moving block, thereby achieving accurate docking between the upright plate 1 and the pressing equipment moving block. Then, locking components are used to fasten the upright plate 1 and the pressing equipment moving block, for example, by using buckles to snap them together, or by using screws and bolts to fix them together. After fastening, when the pressing equipment moving block moves, it will drive the upright plate 1 to move up and down synchronously.

[0043] Preferably, in this embodiment, a left handle 11 and a right handle 12, distributed left and right, are provided on the upper surface of the upright plate 1 for the operator to grip. During assembly, the operator simultaneously grips the left handle 11 and the right handle 12 with both hands, lifts the upright plate 1, and then aligns and inserts the upright plate positioning hole on the upright plate 1 with the positioning insert at the front end of the pressing equipment moving block, thereby assembling the upright plate 1 with the pressing equipment moving block, which is convenient and quick. Furthermore, as... Figure 3 and Figure 4 As shown, the left handle 11 and the right handle 12 are staggered vertically and located at different heights.

[0044] Preferably, after the distribution tube 13 is placed into the two distribution tube grooves and the positioning pin 8 is inserted into the distribution tube positioning hole on the tube wall of the distribution tube 13, in order to better prevent the distribution tube 13 from tilting forward, we also add a clamping component to prevent the distribution tube 13 from moving forward.

[0045] Specifically, the clamping assembly includes a rotary cylinder 15 connected to the left or right side of the upright plate 1. The piston rod of the rotary cylinder 15 is a piston rod 16, which extends forward and backward, and a horizontal arm pressure plate 17 is connected to the front end of the piston rod of the rotary cylinder. Figure 5 As shown, the cross arm pressure plate 17 and the piston rod 16 (the piston rod of the rotary cylinder) are perpendicular to each other. Driven by the rotary cylinder 15, the piston rod 16 can extend and retract and rotate radially, thereby causing the cross arm pressure plate 17 connected to the front end of the piston rod 16 to extend and retract synchronously or rotate radially. The rotary cylinder 15 can also enable the piston rod to rotate 90 degrees to the right (or left) while extending and retracting, thus achieving the extension, retraction, and rotation of the cross arm pressure plate 17.

[0046] Before the distribution pipe 13 is placed into the distribution pipe groove, the horizontal arm pressure plate 17 is located to the side of the vertical plate 1 and extends longitudinally (i.e., the horizontal arm pressure plate 17 is in the initial position). At this time, the horizontal arm pressure plate 17 does not obstruct the front end of the vertical plate 1 and does not extend forward. Figure 3 As shown.

[0047] When the distribution tube 13 is placed into the distribution tube groove and the distribution tube positioning pin 8 is inserted into the distribution tube positioning hole, the rotary cylinder 15 drives the horizontal arm pressure plate 17 to extend forward, and then drives the horizontal arm pressure plate 17 to rotate 90 degrees towards the vertical plate 1. After rotating 90 degrees, the stop bar 17 extends horizontally and is located in front of the distribution tube 13. Finally, the rotary cylinder 15 drives the horizontal arm pressure plate 17 to retract towards the front wall of the distribution tube 13. The rear end of the horizontal arm pressure plate 17 contacts the wall of the distribution tube 13, forming a block to prevent the distribution tube 13 from tilting forward. Figure 4 As shown.

[0048] When the distribution pipe 13 is blocked by the cross arm pressure plate 17, the distribution pipe 13 is locked between the cross arm pressure plate 17 and the distribution pipe positioning block, and cannot be easily displaced in the front and back directions.

[0049] After the distribution pipe 13 is blocked by the cross arm pressure plate, we can start the pressing equipment. The pressing equipment moving block drives the pressing fixture and the distribution pipe 13 to press down. During the pressing process, the pressing equipment top pressure block drives the pressure rod 6 to press down. After the lower end of the pressure rod 6 abuts against the upper end face of the distribution pipe 13, the pressing equipment top pressure block and the pressing equipment moving block press down synchronously, pressing the lower port of the distribution pipe 13 to the lower end cap. After the end cap is pressed into the port of the distribution pipe 13, the pressing equipment top pressure block and the pressing equipment moving block move upward to reset. When the pressing equipment moving block stops, the rotary cylinder 15 drives the cross arm pressure plate 17 located in front of the distribution pipe 13 to extend forward (i.e., away from the distribution pipe), and then drives the cross arm pressure plate 17 to rotate 90 degrees and then retract backward, so that the stop rod 17 returns to the initial position. Finally, the distribution pipe 13 is removed from the pressing fixture.

Claims

1. A visual pressing fixture for positioning pins of a distribution tube, characterized in that: The assembly includes a vertical plate (1) and a clamping assembly for clamping the distribution pipe; the front end face of the vertical plate (1) is connected to a distribution pipe end pressing assembly and a distribution pipe limiting assembly distributed vertically; the distribution pipe limiting assembly includes a plurality of distribution pipe positioning blocks distributed in a vertical direction and at least one distribution pipe positioning pin (8); the distribution pipe positioning blocks are fixed to the front end face of the vertical plate (1), and the front end of the distribution pipe positioning blocks is provided with a distribution pipe positioning groove; the distribution pipe positioning pin (8) is vertically fixed to the front end face of the vertical plate (1); a mirror is also connected to the left or right side of the distribution pipe positioning pin (8) on the front end face of the vertical plate (1); the mirror surface (14) of the mirror faces the distribution pipe positioning pin (8), and the angle between the mirror surface (14) and the front end face of the vertical plate (1) is greater than 90 degrees.

2. The visual pressing fixture for positioning pins of a distribution tube according to claim 1, characterized in that: It also includes a mirror fixing block; the lower end of the mirror fixing block is bolted to the upright plate (1); the mirror is fixed to the upper end face of the mirror fixing block.

3. The visual pressing fixture for positioning pins of a distribution tube according to claim 2, characterized in that: The upright plate (1) is also provided with at least two upright plate positioning sleeve holes that run from front to back.

4. The visual pressing fixture for positioning pins of a distribution tube according to claim 3, characterized in that: The upright plate (1) is also connected to a left handle (11) and a right handle (12); the left handle (11) and the right handle (12) are located on the left and right sides of the distribution tube limiting assembly.

5. A visual pressing fixture for positioning pins of a distribution tube according to claim 4, characterized in that: The left handle (11) and right handle (12) are staggered vertically and located at different heights.

6. A visual pressing fixture for positioning pins of a distribution tube according to any one of claims 1-5, characterized in that: The distribution pipe end pressing assembly includes a pressure rod (6), a pressure rod fixing support (7), and a spring (10); the pressure rod fixing support (7) is fixedly connected to the front end face of the upright plate (1); the pressure rod fixing support (7) is provided with a sliding hole that runs vertically through it, and the pressure rod (6) is inserted into the sliding hole; the upper end of the pressure rod (6) is connected to a pressure head (9), and a limiting part (18) is fixedly connected to the outer wall of the pressure rod (6); the limiting part (18) is located below the pressure rod fixing support (7); the spring (10) is located between the lower end of the pressure head (9) and the upper end of the pressure rod fixing support (7), and the spring (10) is sleeved on the outer ring of the pressure rod (6).

7. A visual pressing fixture for positioning pins of a distribution tube according to claim 6, characterized in that: The clamping assembly includes a rotary cylinder (15) connected to the left or right side of the upright plate (1). The piston rod of the rotary cylinder (15) extends forward and backward, and the front end of the piston rod of the rotary cylinder (15) is connected to a horizontal arm pressure plate (17). The horizontal arm pressure plate (17) and the piston rod of the rotary cylinder (15) are perpendicular to each other.

Images