Oil pipe support lining press-fitting equipment with self-checking function

Abstract

The utility model discloses oil pipe support bushing press-fitting equipment with a self-checking function, which is characterized in that a base is provided with a workbench for bearing a support, a positioning pin for providing reference positioning for the support is telescopically arranged in the workbench, the end part of the positioning pin is also provided with a positioning step for placing a bushing, and the positioning step is used for positioning the bushing. And when one end of the positioning pin penetrates out of the mounting hole of the bracket, the bushing can be coaxially arranged right above the mounting hole. On one hand, the cavity is formed in the pressing head, the pressure sensor is arranged in a low-cost method to detect the pressing-in force of the bush, on the other hand, the limiting step is arranged on the pressing table to be matched with the movable guide pin to achieve a coupling driving mode, the dimensional tolerance requirement of all parts is lowered, and then the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of oil pipe bushing press-fitting, in particular to an oil pipe bracket bushing press-fitting device with self-checking function. Background Art

[0002] Existing installation methods for oil pipe bracket bushings involve manually pressing them into the mounting holes using a manual tool. Due to operational limitations on bushing press-in force, if the force is less than the standard operating force, the bushing is prone to falling off during subsequent use. If the force is greater than the standard operating force, the bushing is easily damaged after being pressed in. Therefore, the proper installation of the bushing depends entirely on the worker's skill. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the purpose of the present invention is to provide a self-checking oil pipe bracket bushing press-fitting device to achieve the purpose of controlling the press-fitting force.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A self-checking oil pipe bracket bushing pressing device is characterized in that a workbench for supporting the bracket is provided on the base, a positioning pin is telescopically provided in the workbench to provide a reference positioning for the bracket, and a positioning step for placing the bushing is also provided on the end of the positioning pin, so that when one end of the positioning pin passes through the mounting hole of the bracket, the bushing can be coaxially arranged directly above the mounting hole.

[0006] Preferably, a press-fitting mechanism is provided on the bushing, which is driven to move by the cylinder at the top and assembled by squeezing the bushing through the pressure head at the bottom. A pressure sensor for feeding back the pressing force of the bushing is also provided in the pressure head.

[0007] Preferably, the press-fitting mechanism further comprises a movable guide pin connected to the cylinder piston rod, and the movable guide pin is coupled to the pressing head.

[0008] Preferably, the pressing mechanism is fixed to the pressing table by a limiting step, the pressing head extends from the bottom of the pressing table, and the limiting step limits the upward stroke of the movable guide pin so that the movable guide pin engages with the limiting step and separates from the pressing head when resetting.

[0009] Preferably, the movable guide pin is in an inverted "T" shape.

[0010] Preferably, a guide column connected to the upper frame is provided on the base, the cylinder is fixed on the upper frame, and the press-fitting platform is slidably provided between the upper frame and the base via the guide column.

[0011] Preferably, a return spring is provided at the bottom of the positioning pin for achieving extension and retraction from the workbench.

[0012] The beneficial effects of the present invention are:

[0013] The utility model provides a self-checking oil pipe bracket bushing pressing device. On the one hand, a cavity is set in the pressure head to arrange a pressure sensor in a low-cost method to detect the pressing force of the bushing. On the other hand, a limit step is set on the pressing table to cooperate with a movable guide pin to realize a coupled driving method, which reduces the dimensional tolerance requirements of each part and thus reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[0015] Figure 1 It is an overall schematic diagram of the present utility model.

[0016] Figure 2 This is an enlarged view of the press-fitting equipment.

[0017] Figure 3 This is an enlarged view of the end of the dowel pin. DETAILED DESCRIPTION

[0018] In the description of the present invention, it should be noted that the terms "up", "down", "left", "right", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. The above description is simplified for the convenience of describing the present invention, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, it cannot be understood as a limitation on the present invention.

[0019] In the specification, when an element is referred to as being “on,” “fixed” to, “connected to,” or “engaged to,” etc., another element, the element may be directly on, fixed to, connected to, engaged to, or in contact with the other element, or intervening elements may be present. In the specification, when a feature is arranged “adjacent” to another feature, it may mean that the feature has a portion overlapping with the adjacent feature or a portion located above or below the adjacent feature.

[0020] The following describes exemplary embodiments of the present application with reference to the accompanying drawings. However, it should be understood that the present application can be presented in many different ways and is not limited to the embodiments described below. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide many additional embodiments. In all figures, the same reference numerals represent the same elements or elements with the same function.

[0021] refer to Figure 1 The self-test press-fitting device is a press-fitting table 50 for carrying a press-fitting mechanism 60, which is movably arranged between the base 10 and the upper frame 20 through a guide column 40. A cylinder 30 connected to the press-fitting mechanism 60 and providing a working driving force is also provided on the upper frame 20.

[0022] Figure 2 and Figure 3 A partial, enlarged view of the working portion of the press-fitting equipment is shown. Specifically, the press-fitting mechanism 60 is secured to the press-fitting platform 50 via a stopper step 61. A ram 63 is embedded within the platform 50 and extends downward from its lower portion. A movable guide pin 31, acting as a transmission element, is connected to the piston rod of the cylinder 30. When the cylinder 30 extends, the movable guide pin 31 engages the top of the ram 63, driving the ram 63 downward. When the cylinder 30 returns to its original position, the movable guide pin 31 disengages from the ram 63 and engages the stopper step 61, providing an upward pull to the platform 50, causing the ram 63 to move upward with the platform 50. This structure constitutes the coupling mechanism between the movable guide pin 31 and the ram 63.

[0023] In one embodiment, the movable guide pin 31 is designed to be in an inverted “T” shape so as to engage with the limiting step 61 .

[0024] Bracket 1 is supported by a workbench 11 on base 10. Workbench 11 is provided with a positioning pin 64 that can be extended and retracted upward and downward from its upper surface. This retraction is achieved by a return spring 65 at its base. A positioning step 64a is defined at the upper end of positioning pin 64 for receiving a bushing. This allows the bushing to be coaxially positioned directly above mounting hole 2 when one end of positioning pin 64 extends through mounting hole 2 of bracket 1.

[0025] In order to better monitor the bushing pressing force, a cavity 63a is provided in the pressure head 63 and a piezoresistive pressure sensor 62 is inserted in the cavity.

Claims

1. A self-checking oil pipe support bushing press-fitting device, characterized in that: A workbench for supporting the bracket is provided on the base, and a positioning pin is telescopically provided inside the workbench to provide a reference positioning for the bracket. A positioning step for placing a bushing is also provided on the end of the positioning pin, so that when one end of the positioning pin passes through the mounting hole of the bracket, the bushing can be coaxially arranged directly above the mounting hole.

2. The self-checking oil pipe support bushing press-fitting device according to claim 1, characterized in that: A pressing mechanism is provided on the bushing, which is driven to move by the cylinder at the top and is assembled by squeezing the bushing through the pressing head at the bottom. A pressure sensor for feeding back the pressing force of the bushing is also provided in the pressing head.

3. The self-checking oil pipe support bushing press-fitting device according to claim 2, characterized in that: The press-fitting mechanism further comprises a movable guide pin connected to the cylinder piston rod, and the movable guide pin is coupled to the pressing head.

4. The self-checking oil pipe support bushing press-fitting device according to claim 3, characterized in that: The pressing mechanism is fixed on a pressing table through a limiting step, and the pressing head extends from the bottom of the pressing table. The limiting step limits the upward stroke of the movable guide pin, so that the movable guide pin engages with the limiting step and separates from the pressing head when resetting.

5. The self-checking oil pipe support bushing press-fitting device according to claim 4, characterized in that: The movable guide pin is in an inverted "T" shape.

6. The self-checking oil pipe support bushing press-fitting device according to claim 5, characterized in that: A guide column connected to the upper frame is provided on the base, the cylinder is fixed on the upper frame, and the press-fitting platform is slidably provided between the upper frame and the base via the guide column.

7. The self-checking oil pipe support bushing press-fitting device according to claim 1, characterized in that: A return spring is provided at the bottom of the positioning pin for realizing extension and retraction from the workbench.

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