A large thread tapping assist device on a universal rocker tapping machine

Abstract

A large-thread tapping assist device on a universal rocker tapping machine includes an operating table, a support frame mounted on the operating table, a top plate mounted parallel to the operating table at the top of the support frame, a column mounted on the workbench, a rocker arm structure rotatably connected to the column, a tapping structure mounted at the front end of the rocker arm structure, and a drive structure mounted on the side of the rocker arm structure; the drive structure outputs a vertically upward driving force that cooperates with the top cover to drive the tapping structure to move vertically downward. The present invention solves the technical difficulties in large-thread tapping, reduces the damage rate of the taper, improves the product qualification rate, greatly reduces labor intensity, improves production efficiency, ensures product quality, and reduces safety hazards.

Description

Technical Field

[0001] The invention belongs to the field of tunnel construction parts processing and machinery manufacturing, and in particular relates to a large thread tapping assist device on a universal rocker arm tapping machine. Background Art

[0002] With the rapid development of urban rail transit (subway), rail transit has become a vital component of urban transportation and the preferred choice for the general public. It is of great significance to promoting market prosperity and the rapid development of society and the economy. Tunnel engineering is a key carrier of subway transportation, and the connection method of shield tunnel segments is of paramount importance during tunnel construction.

[0003] The currently used bolt connection method has the following problems: there are many connection points between the annular seams and the longitudinal seams during the assembly of the pipe segments, the force direction is inclined, the force area is small, the operating space is narrow, and it is all manually operated. Not only is the labor intensity high and the work efficiency low, but it is also easy to damage the pipe segments, posing a safety hazard, resulting in many leakage points, difficulty in ensuring quality, frequent defects in the later stage, and high maintenance costs.

[0004] The longitudinal seams of the new type of pipe segments are connected by inserting, and the circumferential seams are connected by sliding, which does not require bolt connection. The ends of the pipe segments are made of composite water-stopping materials, which have the characteristics of better integrity, stronger rigidity, longer durability and better waterproofness.

[0005] During the production process of the socket-type longitudinal seam connector of the tunnel segment, it is necessary to perform tapping operations on the connection base to facilitate screwing the threaded steel bar into the connection base during subsequent production.

[0006] Tapping refers to using a certain torque to screw the tap into the bottom hole to be drilled to produce internal threads.

[0007] Under current circumstances, manual tapping is mostly used. The quality of manual tapping is greatly affected by human factors. Problems such as inaccurate positioning of the tap and uneven force can easily lead to the breakage of the tap and damage to the workpiece. In addition, the labor intensity is extremely high and there are safety hazards.

[0008] When facing the processing of large threaded holes, existing tapping machines have problems such as being unable to complete the tapping operation by relying solely on torque, the tap slipping, and breaking.

[0009] At the same time, some tapping machines are unable to maintain the vertical direction of the driving force when applying the driving force, resulting in problems such as tap breakage and damage to the workpiece to be processed. Summary of the Invention

[0010] The object of the present invention is to provide a large thread tapping assist device on a universal rocker arm tapping machine, so as to solve the technical problem of providing a stable vertical driving force during the tapping process.

[0011] To achieve the above-mentioned purpose, the specific technical solution of the large thread tapping assist device on the universal rocker tapping machine of the present invention is as follows:

[0012] A large thread tapping assist device on a universal rocker arm tapping machine comprises an operating table, a support frame arranged on the operating table, a top plate arranged on the top of the support frame parallel to the operating table, a column arranged on the workbench, a rocker arm structure rotatably connected to the column, a tapping structure arranged at the front end of the rocker arm structure, and a driving structure arranged on the side of the rocker arm structure;

[0013] The driving structure outputs a vertically upward driving force, and cooperates with the top cover to drive the tapping structure to move vertically downward.

[0014] In order to better adjust the position of the tapping structure in the horizontal direction, the rocker arm structure includes at least two rocker arms. The first rocker arm is rotatably connected to the column, and the position of the rocker arm structure in the vertical direction can be adjusted in the direction of the column; the second rocker arm is rotatably connected to the first rocker arm, the front end of the second rocker arm is connected to the tapping structure, and the side is connected to the driving structure.

[0015] In order to better control the movement of the rocker arm structure, the second rocker arm includes a first connecting block rotatably connected to the first rocker arm, a robotic arm connected to the first connecting block, and a second connecting block connected to the other end of the robotic arm; a damping rod is also connected between the robotic arm and the first connection to control the vertical movement of the robotic arm.

[0016] In order to drive the movement of the tapping structure, the tapping structure is connected to the front end of the second connecting block.

[0017] In order to further drive the movement of the tapping structure, a driving structure is connected to the side surface of the second connecting block.

[0018] In order to complete the tapping operation, the tapping structure includes a tapping driver connected to the rocker arm structure, a handle arranged on the side of the tapping driver, a tap torque chuck arranged at the lower end of the tapping driver, and a tap arranged at the lower end of the tap torque chuck; the operating handle adjusts the position of the tapping structure, and the tapping driver drives the tap torque chuck to rotate, driving the tap to tap.

[0019] In order to generate a vertical upward driving force for the top plate, the driving structure includes a driver connected to the rocker arm structure and a telescopic rod arranged on the driver; the driver drives the telescopic rod to move toward the top plate, and the telescopic rod cooperates with the top plate to drive the tapping structure downward.

[0020] In order to ensure the stability of the workpiece to be processed during the tapping process, the large thread tapping assist device on the universal rocker arm tapping machine also includes a clamping fixture arranged on the operating table to clamp the workpiece to be processed.

[0021] In order to improve production efficiency, the drive is cylinder driven, which has a simple structure and is easy to maintain.

[0022] Beneficial effects:

[0023] By setting up a vertical drive structure, a top cover and an operating table that are parallel to each other, it is ensured that only vertical force is applied to the tapping structure, ensuring the stability of the tapping process, solving the technical difficulties in tapping large threads, reducing the damage rate of the taper, improving the product qualification rate, and greatly reducing labor intensity, improving production efficiency, ensuring product quality, and reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural schematic diagram of a large thread tapping assist device on a universal rocker arm tapping machine according to the present invention;

[0025] Figure 2 It is a front view of a large thread tapping assist device on a universal rocker arm tapping machine of the present invention;

[0026] Figure 3 Schematic diagram of the second rocker arm structure of the present invention;

[0027] Explanation of the marks in the figure: 100, operating table; 200, support frame; 300, top cover; 400, column; 500, tapping structure; 600, rocker arm structure; 700, driving structure; 800, clamping fixture; 510, tapping driver; 520, tap torque chuck; 530, tap; 540, handle; 610, first rocker arm; 620, second rocker arm; 710, driver; 720, telescopic rod; 621, first connecting block; 622, robotic arm; 623, second connecting block; 624, damping rod. DETAILED DESCRIPTION

[0028] In order to better understand the purpose, structure and function of the present invention, the following is a further detailed description of a large thread tapping assist device on a universal rocker arm tapping machine of the present invention in conjunction with the accompanying drawings.

[0029] Implementation example:

[0030] During the production process of socket-type longitudinal joints for tunnel segments, it is necessary to perform tapping operations on the connection base to facilitate screwing of threaded steel bars into the connection base during subsequent production.

[0031] like Figure 1-3As shown, a large thread tapping assist device on a universal rocker arm tapping machine, a support frame 200 is vertically fixedly connected to the operating table 100, a top cover 300 is connected to the top of the support frame 200 in parallel with the operating table 100, and the top cover 300 and the support frame 200 are also vertically connected, a column 400 is provided at a corner of the operating table 100, and the column 400 is fixedly connected to the operating table.

[0032] The rocker arm structure 600 can be positioned at any position within the surface of the operating table 100, facilitating tapping operations at various positions.

[0033] The first rocker arm 610 of the rocker arm structure 600 is rotatably connected to the column 400 in the horizontal direction, and the position of the rocker arm structure 600 can be adjusted in the vertical direction of the column 400.

[0034] The second rocker arm 620 is rotatably connected to the first rocker arm 610 via the first connecting block 621 in the horizontal direction. One end of the robotic arm 622 is connected to the first connecting block 621, and the other end is connected to the second connecting block 623. The robotic arm 622 can adjust the position of the second connecting block 623 up and down in the vertical direction. A damping rod 624 is also connected between the robotic arm 622 and the first connecting block 621 to produce a damping effect on the up and down movement of the second rocker arm 620 in the vertical direction.

[0035] The tapping driver 510 is fixedly connected to the front end of the second connecting block 623 . A handle 540 is installed on the side of the tapping driver 510 to facilitate the movement of the tapping structure 500 during operation.

[0036] The tap torque chuck 520 is disposed at the lower end of the tapping driver 510 , and the tap 530 is clamped at the lower end of the tap torque chuck 520 . The tapping driver 510 drives the tap torque chuck 520 to rotate, thereby driving the tap 530 to tap.

[0037] The driver 710 is arranged on the side of the second connecting block 621 facing the support frame 200, and the telescopic rod 720 is arranged at the upper end of the driver 710. The cylinder drives the driver 710 to generate a vertical upward driving force. The telescopic rod 720 extends upward and supports the top cover 300, and together with the top cover 300, it generates a vertical downward driving force, providing a vertical downward driving force during the tapping process of the tap 530.

[0038] The operating table is also provided with a clamping fixture 800 for clamping the workpiece to be processed; the clamping fixture 800 is fixed to the operating table 100 through the screw holes at the bottom that cooperate with the screw holes on the table top of the operating table 100.

[0039] During use, the workpiece to be processed is first clamped in the clamping fixture 800, and the position of the tap 530 is adjusted by the handle 540. When the tap 530 is aligned with the positioning point, the driver 710 and the tapping driver 510 are started, and the telescopic rod 720 contacts the top cover 300, providing a vertical downward driving force to the tap 530, so that the tap 530 completes tapping.

[0040] It will be understood that the present invention is described by way of some embodiments, and it will be appreciated by those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A large thread tapping assist device on a universal rocker tapping machine, characterized in that: The machine comprises an operating table, a support frame arranged on the operating table, a top plate arranged on the top of the support frame parallel to the operating table, a column arranged on the working table, a rocker arm structure rotatably connected to the column, a tapping structure arranged at the front end of the rocker arm structure, and a driving structure arranged on the side of the rocker arm structure; The driving structure outputs a vertically upward driving force, and cooperates with the top cover to drive the tapping structure to move vertically downward; The rocker arm structure includes at least two rocker arms, a first rocker arm is rotatably connected to the column, and the position of the rocker arm structure in the vertical direction can be adjusted in the direction of the column; a second rocker arm is rotatably connected to the first rocker arm, the front end of the second rocker arm is connected to the tapping structure, and the side surface is connected to the driving structure; The second rocker arm includes a first connecting block rotatably connected to the first rocker arm, a robotic arm connected to the first connecting block, and a second connecting block connected to the other end of the robotic arm; a damping rod is also connected between the robotic arm and the first connecting block to control the vertical movement of the robotic arm.

2. The large thread tapping assist device on a universal rocker arm tapping machine according to claim 1, characterized in that: The tapping structure is connected to the front end of the second connecting block.

3. The large thread tapping assist device on a universal rocker arm tapping machine according to claim 1, characterized in that: The driving structure is connected to a side surface of the second connecting block.

4. The large thread tapping assist device on a universal rocker arm tapping machine according to claim 1, characterized in that: The tapping structure includes a tapping driver connected to the rocker arm structure, a handle arranged on the side of the tapping driver, a tap torque chuck arranged at the lower end of the tapping driver, and a tap arranged at the lower end of the tap torque chuck; the operating handle adjusts the position of the tapping structure, and the tapping driver drives the tap torque chuck to rotate, thereby driving the tap to tap.

5. The large thread tapping assist device on a universal rocker arm tapping machine according to claim 1, characterized in that: The driving structure includes a driver connected to the rocker structure and a telescopic rod arranged on the driver; the driver drives the telescopic rod to move toward the top plate, and the telescopic rod cooperates with the top plate to drive the tapping structure downward.

6. The large thread tapping assist device on a universal rocker arm tapping machine according to claim 1, characterized in that: It also includes a clamping fixture arranged on the operating table for clamping the workpiece to be processed.

7. The large thread tapping assist device on a universal rocker tapping machine according to claim 5, characterized in that: The driver is driven by a cylinder.

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