U-nut installation tool to prevent wrong installation and missing installation

Abstract

The present invention discloses a U-shaped nut installation tool for preventing wrong installation and missing installation, and it relates to the technical field of oil cooler installation. Two groups of installation blocks are fixed on its installation seat, and guide pressure blocks are installed on both groups of installation blocks. A V-shaped empty groove is opened on the top of the guide pressure block, and an elastic sheet is arranged below the guide pressure block; a stopper arranged on the side of the guide pressure block is fixedly connected to the elastic sheet, and the top of the stopper is higher than the top of the guide pressure block; an upper positioning bar and a lower positioning bar are arranged above the guide pressure block; limiting blocks are fixed on both groups of installation blocks, and a stopper bar for blocking the U-shaped nut is installed on the top of the limiting block. The advantages of the present invention are: the oil cooler bracket can be supported and the position is limited, which is convenient for the installation of the U-shaped nut; the missing installation and reverse installation of the U-shaped nut can be prevented, and the rework affecting the work efficiency can be avoided, thereby improving the production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of oil cooler installation, and in particular to a U-shaped nut installation tool for preventing wrong installation and missing installation. Background Art

[0002] The oil cooler is a kind of oil cooling equipment commonly used in hydraulic systems and lubrication systems. The equipment can achieve heat exchange between two fluid media with a certain temperature difference, thereby achieving the purpose of reducing the oil temperature and ensuring the normal operation of the system. Usually, a bracket is set on the oil cooler, and a U-shaped nut is installed on the bracket. The U-shaped nut is connected to the components on the hydraulic equipment, and the oil cooler is installed on the hydraulic equipment.

[0003] In the prior art, when installing the U-shaped nut on the bracket of the oil cooler, the operator manually presses and fixes the oil cooler, and directly installs the U-shaped nut on the bracket. However, in this way, the oil cooler needs to be manually pressed and fixed by the operator during installation, which is difficult and laborious for the operator to operate. After frequent operation, it is easy to miss the U-shaped nut or install the U-shaped nut in the wrong direction, which affects the subsequent installation work. If rework is required after discovery, it affects the work efficiency and the efficiency of installation production is low. It is necessary to provide a U-shaped nut installation tool that prevents wrong installation and missing installation, avoids the occurrence of wrong installation and missing installation, and improves the installation efficiency. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a U-shaped nut installation tool that prevents mis-installation and missing installation, which can limit the position of the oil cooler, facilitate the installation of the U-shaped nut, avoid the occurrence of mis-installation and missing installation of the U-shaped nut, and improve the installation efficiency.

[0005] In order to solve the above technical problems, the technical solution of the present invention is as follows: comprising a mounting seat, on which two groups of mounting blocks are fixed, and on which both groups of mounting blocks are mounted guide pressing blocks protruding from the sides of the mounting blocks, and the top of the guide pressing blocks is provided with a V-shaped slot for placing a U-shaped nut, and an elastic sheet is provided below the guide pressing blocks;

[0006] The elastic sheet is fixedly connected with a stopper arranged on the side of the guide pressing block, and the top of the stopper is higher than the top of the guide pressing block;

[0007] An upper positioning bar and a lower positioning bar are provided above the guide pressing block, one end of the lower positioning bar is fixed to the top of the corresponding mounting block, the upper positioning bar is provided above the lower positioning bar, the upper positioning bar and the lower positioning bar are connected by a spacer, and the length of the upper positioning bar is less than that of the lower positioning bar;

[0008] The two groups of mounting blocks are both fixed with a limit block composed of a horizontal plate and a vertical plate. The horizontal plate of the limit block is fixed above the upper positioning bar, and the vertical plate of the limit block is fixed on the mounting seat. The horizontal plate and the vertical plate are transitionally connected by an arc plate. The part of the horizontal plate corresponding to the top of the guide pressure block is provided with a vacant part for installing the U-shaped nut. A baffle bar for blocking the U-shaped nut is installed on the top of the limit block, and one end of the baffle bar is fixed to the top of the limit block, and the other end extends above the upper positioning bar.

[0009] Furthermore, the mounting seat has a horizontal base and a vertical fixed seat, the vertical fixed seat is fixed to the top of the horizontal base, and two groups of mounting blocks are provided above one side of the mounting seat, and the two groups of mounting blocks are respectively arranged at both ends of the mounting seat, and each group of mounting blocks consists of two oppositely arranged mounting blocks, and mounting grooves for installing guide pressure blocks are provided on opposite surfaces of the two mounting blocks in each group, and one end of the guide pressure block is fixed in the mounting groove, and the other end protrudes from the side of the mounting block.

[0010] Furthermore, the elastic sheet is composed of a horizontal elastic sheet and an inclined elastic sheet, one end of the horizontal elastic sheet is fixed to the bottom of the corresponding mounting block, and the other end is connected to the inclined elastic sheet, the horizontal elastic sheet and the inclined elastic sheet are connected through an arc-shaped sheet transition, the horizontal elastic sheet is located at the lower end of the inclined elastic sheet, and the side of the guide pressure block away from the mounting block is set to an inclined surface corresponding to and fitting the inclined elastic sheet.

[0011] Furthermore, a baffle is fixed to one side of the vertical fixing seat of the mounting seat, the baffle and the mounting block are arranged on the same side of the vertical fixing seat, the baffle is arranged below the mounting block, and the thickness of the baffle is equal to or greater than the thickness of the mounting block.

[0012] Furthermore, two limit blocks are provided, and the vertical plates of the two limit blocks are respectively located on the sides of the surfaces of the two groups of mounting blocks that are close to each other.

[0013] After adopting the above structure, the advantages of the present invention are: through the joint action of the upper positioning bar, the lower positioning bar and the limit block, the bracket of the oil cooler can be supported and the position can be limited, and the baffle can limit the position of the oil cooler, thereby the position of the oil cooler and its bracket that need to be installed with the U-shaped nut can be limited, which is convenient for the installation of the U-shaped nut and reduces the work intensity;

[0014] The combined effect of the elastic sheet, the stopper and the conductor pressing block can prevent the U-shaped nut from being installed unnoticed;

[0015] The blocking bar can block the protruding nut part of the U-shaped nut, which can prevent the U-shaped nut from being installed in reverse and causing wrong installation, avoid rework to affect work efficiency, and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a structural schematic diagram of the present invention;

[0017] Figure 2 It is a front view of the present invention;

[0018] Figure 3 is a side view of the present invention;

[0019] Figure 4 A top view of the present invention;

[0020] Figure 5 It is a structural schematic diagram of the U-shaped nut of the present invention.

[0021] Explanation of the accompanying drawings: mounting seat 1, horizontal base 11, vertical fixing seat 12, mounting block 2, limiting block 3, guide pressure block 4, elastic sheet 5, upper positioning bar 6, lower positioning bar 7, stop block 8, stop bar 9, baffle 10, oil cooler 13, oil cooler bracket 14, U-shaped nut 15. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. The following embodiments can enable technicians in this field to understand the present invention more comprehensively, but the present invention is not limited to the scope of the embodiments.

[0024] like Figure 1-Figure 4 As shown, this specific embodiment adopts the following technical solution: it includes a mounting seat 1, the mounting seat 1 has a horizontal base 11 and a vertical fixing seat 12, the vertical fixing seat 12 is fixed to the top of the horizontal base 11, and two groups of mounting blocks 2 are fixed on one side of the vertical fixing seat 12. The two groups of mounting blocks 2 are respectively arranged at both ends of the mounting seat 1, and each group of mounting blocks 2 is two mounting blocks 2 arranged oppositely. The opposite surfaces of the two mounting blocks 2 of each group are provided with mounting grooves for installing guide pressing blocks 4, and one end of the guide pressing block 4 is fixed to The two groups of mounting blocks 2 are respectively equipped with two guide pressing blocks 4. The top of the guide pressing block 4 is provided with a V-shaped empty groove for placing the U-shaped nut 15. When the U-shaped nut 15 is installed and taken off with the oil cooler bracket 14, the protruding nut part of the U-shaped nut 15 will move along the V-shaped empty groove to press down one end of the guide pressing block 4. An elastic sheet 5 is provided under the guide pressing block 4. When the guide pressing block 4 is pressed down, the elastic sheet 5 is pressed down at the same time. The structure of the U-shaped nut 15 is as shown in FIG. Figure 5 shown.

[0025] The elastic sheet 5 is fixedly connected with a block 8 arranged on the side of the guide pressure block 4, and the top of the block 8 is higher than the top of the guide pressure block 4. When the oil cooler bracket 14 enters the tooling, the block 8 is pressed down and entered. In the absence of external force, the oil cooler bracket 14 is blocked by the block 8 and cannot be taken out. The elastic sheet 5 is composed of a horizontal elastic sheet and an inclined elastic sheet. One end of the horizontal elastic sheet is fixed to the bottom of the corresponding mounting block 2, and the other end is connected to the inclined elastic sheet. The horizontal elastic sheet and the inclined elastic sheet are connected through an arc-shaped sheet transition. The horizontal elastic sheet is located at the lower end of the inclined elastic sheet, and the side of the guide pressure block 4 away from the mounting block 2 is set to an inclined surface corresponding to and fitting the inclined elastic sheet. The correctly installed U-shaped nut will press the guide pressure block 4 down when it is taken out, and the downward pressure of the guide pressure block 4 will drive the elastic sheet 5 and the block 8 to be pressed down together, and the installed oil cooler bracket 14 can be smoothly taken out.

[0026] An upper positioning bar 6 and a lower positioning bar 7 are provided above the guide pressing block 4. One end of the lower positioning bar 7 is fixed to the top of the corresponding mounting block 2. The upper positioning bar 6 is provided above the lower positioning bar 7. The upper positioning bar 6 and the lower positioning bar 7 are connected by a spacer. The length of the upper positioning bar 6 is less than that of the lower positioning bar 7. When the oil cooler bracket 14 enters the tooling, it can enter between the upper positioning bar 6 and the lower positioning bar 7 along the guide pressing block 4, which is convenient for the installation of the U-shaped nut 15.

[0027] The two groups of mounting blocks 2 are both fixed with a limit block 3 composed of a horizontal plate and a vertical plate. The horizontal plate of the limit block 3 is fixed above the upper positioning bar 6, and the vertical plate of the limit block 3 is fixed on the mounting seat 2, and the horizontal plate and the vertical plate are connected by an arc plate transition. There are two limit blocks 3, and the vertical plates of the two limit blocks 3 are respectively located on the side of the side where the two groups of mounting blocks 2 are close to each other. The two oil cooler brackets 14 on the oil cooler 13 are respectively limited by the two limit blocks 3 and will not move left and right. The mounting seat A baffle 10 is fixed to one side of the vertical fixing seat 12 of 1, and the baffle 10 and the mounting block 2 are arranged on the same side of the vertical fixing seat 12. The baffle 10 is arranged below the mounting block 2, and the thickness of the baffle 10 is equal to or greater than the thickness of the mounting block 2. One side of the oil cooler 13 will be limited by the baffle 10, and the oil cooler 13 will no longer move in the direction of the mounting block 2. The oil cooler 13 and the oil cooler bracket 14 are more stable on the tooling, which is convenient for the smooth installation of the U-nut 15.

[0028] The part of the cross plate corresponding to the top of the guide pressure block 4 is provided with a vacant part for installing the U-shaped nut 15, and a baffle 9 is installed on the top of the limit block 3 to block the U-shaped nut 15. If the installation direction of the U-shaped nut is opposite, that is, the protruding nut part is upward, it will be blocked by the baffle 9 and cannot be installed. The operator will realize the installation error, correct the direction and reinstall it. One end of the baffle 9 is fixed to the top of the limit block 3, and the other end extends above the upper positioning strip 6. After the oil cooler bracket 14 is in place, the protruding nut part on the U-shaped nut 15 is downward, and the U-shaped nut 15 is installed on the oil cooler bracket 14. The spring of the U-shaped nut 15 is stuck in the middle of the mounting hole of the oil cooler bracket 14, and the U-shaped nut 15 is correctly installed on the oil cooler bracket 14.

[0029] Working principle: Two oil cooler brackets 14 are connected to both sides of the upper end of the oil cooler 13. The two oil cooler brackets 14 are respectively provided with mounting holes. The U-shaped nuts 15 need to be correctly installed on the oil cooler brackets 14 through tooling.

[0030] When the oil cooler bracket 14 is installed into the tooling, the oil cooler bracket 14 presses down the stopper 8 and the elastic sheet 5, places them above the guide pressing block 4, moves along the lower positioning bar 7, and enters between the upper positioning bar 6 and the lower positioning bar 7. The side of the oil cooler bracket 14 is blocked by the limit block 3 and will not move left and right. The side of the oil cooler 13 is blocked by the baffle 10 and will not move toward the direction of the installation block 2. After the oil cooler bracket 14 is in place, the elastic sheet 5 returns to its original position due to the elastic force, driving the stopper 8 to return to its original position. The top of the stopper 8 is higher than the oil cooler bracket 14. The oil cooler bracket 14 cannot be taken out and must be taken out under the action of the U-shaped nut 15 after the U-shaped nut 15 is installed, which can prevent the U-shaped nut 15 from being missed.

[0031] Then the U-shaped frame of the U-shaped nut is passed through the oil cooler bracket 14 for installation. The protruding nut part of the U-shaped nut 15 should be downwardly located in the V-shaped empty groove opened at the top of the guide pressure block 4. If the U-shaped nut 15 is installed in the direction with the protruding nut part facing upward, it will be blocked by the blocking bar 9 and cannot be installed, which can prevent the U-shaped nut 15 from being installed in the reverse direction. After installation, the spring of the U-shaped nut 15 is stuck in the middle of the mounting hole of the oil cooler bracket 14, and the U-shaped nut 15 is connected to the oil cooler 14. The U-shaped nut 15 has a threaded hole for easy connection with other components.

[0032] After correct installation, the operator takes out the oil cooler 13 and the U-shaped nut 15, and the protruding nut part of the U-shaped nut 15 moves up along the inclined path of the V-shaped slot of the guide pressing block 4. At the same time, the guide pressing block 4 is pressed down, driving the elastic sheet 5 to be pressed down, and the elastic sheet 5 drives the stopper 8 to be pressed down, and the oil cooler bracket 14 can be smoothly taken out.

[0033] Before using the tooling, it is necessary to install the U-shaped nut 15 once to check whether the tooling can be used normally. Put the oil cooler bracket 14 into the tooling according to the above steps, and then directly pull the oil cooler bracket 14 outward. If any one of the two oil cooler brackets 14 can be easily taken out, it means that the faulty tooling cannot be used. If it cannot be taken out, it means that the first step inspection of the tooling has passed. Install the two U-shaped nuts 5 on the two oil cooler brackets 14. The protruding nut part is downward for the correct installation method, and upward for the incorrect installation method. If the incorrect installation method can be installed, it means that the baffle bar 9 has a fault and the tooling cannot be used. If it cannot be installed, it means that the second step inspection of the tooling has passed. According to the above inspection results, if both steps of the inspection are qualified, the tooling can be used for production, otherwise it needs to be repaired and can only be used after the repair is qualified.

[0034] In this specific embodiment, the upper positioning bar, the lower positioning bar and the limit block work together to support and limit the position of the oil cooler bracket, and the baffle plate can limit the position of the oil cooler, thereby limiting the position of the oil cooler and its bracket that need to be installed with U-shaped nuts, facilitating the installation of the U-shaped nuts and reducing work intensity; the elastic sheet, the block and the wire pressing block work together to prevent the U-shaped nuts from being installed unnecessarily; the baffle bar can block the protruding nut part of the U-shaped nut, thereby preventing the U-shaped nut from being installed in reverse and causing misinstallation, avoiding rework that affects work efficiency and improving production efficiency.

[0035] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A U-shaped nut installation tool for preventing mis-installation and missing installation includes a mounting seat, and is characterized by: Two groups of mounting blocks are fixed on the mounting seat, and guide pressing blocks protruding from the sides of the mounting blocks are installed on the two groups of mounting blocks. A V-shaped empty groove for placing a U-shaped nut is opened on the top of the guide pressing block, and an elastic sheet is provided under the guide pressing block; The elastic sheet is fixedly connected with a stopper arranged on the side of the guide pressing block, and the top of the stopper is higher than the top of the guide pressing block; An upper positioning bar and a lower positioning bar are provided above the guide pressing block, one end of the lower positioning bar is fixed to the top of the corresponding mounting block, the upper positioning bar is provided above the lower positioning bar, the upper positioning bar and the lower positioning bar are connected by a spacer, and the length of the upper positioning bar is less than that of the lower positioning bar; The two groups of mounting blocks are both fixed with a limit block composed of a horizontal plate and a vertical plate, the horizontal plate of the limit block is fixed above the upper positioning bar, the vertical plate of the limit block is fixed on the mounting seat, and the horizontal plate and the vertical plate are transitionally connected by an arc plate, the portion of the horizontal plate corresponding to the top of the guide pressure block is provided with a vacant portion for installing the U-shaped nut, and a blocking bar for blocking the U-shaped nut is installed on the top of the limit block, one end of the blocking bar is fixed to the top of the limit block, and the other end extends above the upper positioning bar; When the oil cooler bracket is installed into the tooling, the oil cooler bracket presses down the block and the elastic sheet, places them above the guide pressing block, moves along the lower positioning bar, and enters between the upper positioning bar and the lower positioning bar. The side of the oil cooler bracket is blocked by the limit block and will not move left and right. After the oil cooler bracket is in place, the elastic sheet returns to its original position due to the elastic force, driving the block to return to its original position. The top of the block is higher than the oil cooler bracket, and the oil cooler bracket cannot be taken out. It must be taken out under the action of the U-nut after the U-nut is installed, which can prevent the U-nut from being missed. Install the U-shaped frame of the U-shaped nut through the oil cooler bracket. The protruding nut part of the U-shaped nut should be downward in the V-shaped slot opened on the top of the guide block. If the U-shaped nut is installed in the direction with the protruding nut part facing upward, it will be blocked by the barrier bar and cannot be installed. This can prevent the U-shaped nut from being installed in the reverse direction. After installation, the spring of the U-shaped nut is stuck in the middle of the mounting hole of the oil cooler bracket. The U-shaped nut is connected to the oil cooler. There are threaded holes on the U-shaped nut for easy connection with other components. After correct installation, the operator takes out the oil cooler and the U-shaped nut. The protruding nut part of the U-shaped nut moves up along the inclined path of the V-shaped slot of the guide pressure block. At the same time, the guide pressure block is pressed down, driving the elastic sheet to be pressed down. The elastic sheet drives the stopper to be pressed down, and the oil cooler bracket can be taken out smoothly.

2. The U-shaped nut installation tool for preventing wrong installation and missing installation according to claim 1 is characterized in that: The mounting seat comprises a horizontal base and a vertical fixing seat, the vertical fixing seat is fixed to the top of the horizontal base, two groups of mounting blocks are arranged above one side of the mounting seat, the two groups of mounting blocks are arranged at both ends of the mounting seat, each group of mounting blocks consists of two oppositely arranged mounting blocks, and mounting grooves for installing guide pressing blocks are provided on opposite surfaces of the two mounting blocks of each group, one end of the guide pressing block is fixed in the mounting groove, and the other end protrudes from the side of the mounting block.

3. The U-shaped nut installation tool for preventing wrong installation and missing installation according to claim 1, characterized in that: The elastic sheet is composed of a horizontal elastic sheet and an inclined elastic sheet, one end of the horizontal elastic sheet is fixed to the bottom of the corresponding mounting block, and the other end is connected to the inclined elastic sheet, the horizontal elastic sheet and the inclined elastic sheet are connected through an arc-shaped sheet transition, the horizontal elastic sheet is located at the lower end of the inclined elastic sheet, and the side of the guide pressure block away from the mounting block is set to an inclined surface corresponding to and fitting the inclined elastic sheet.

4. The U-shaped nut installation tool for preventing wrong installation and missing installation according to claim 2, characterized in that: A baffle is fixed on one side of the vertical fixing seat of the mounting seat. The baffle and the mounting block are arranged on the same side of the vertical fixing seat. The baffle is arranged below the mounting block. The thickness of the baffle is equal to or greater than the thickness of the mounting block.

5. The U-shaped nut installation tool for preventing wrong installation and missing installation according to claim 1, characterized in that: There are two limit blocks, and the vertical plates of the two limit blocks are respectively located on the sides of the surfaces of the two groups of mounting blocks that are close to each other.

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