A piercing machine plug assembly tool

Abstract

This utility model discloses a mandrel assembly fixture for a piercing machine. The key technical features include a base; a piercing roller rotating mechanism is mounted on the upper surface of the base; a side support frame is mounted on the side of the base, and two sets of slide rails are installed on the upper surface of the side support frame. A driving mechanism is mounted on the upper surface of both sets of slide rails. When the piercing roller rotates under the drive of the rotating mechanism, its external thread automatically engages with the internal thread of the piercing mandrel, allowing the piercing mandrel to automatically screw into the assembly under the guidance of the thread, significantly improving assembly efficiency and accuracy. The connection design between the guide rod cylinder and the support platform allows the driving mechanism to be flexibly adjusted on the slide rails, ensuring that the drive gear and gear disc maintain optimal meshing. Compared to traditional manual assembly methods, this fixture avoids the tediousness and errors of manual rotation operations, significantly reducing labor intensity and improving the consistency of assembly quality and production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of perforating machines, and in particular to a top assembly fixture for perforating machines. Background Technology

[0002] A piercing mill is used in the manufacture of seamless steel tubes based on the Mannesmann process. A piercing mill has a mandrel and a pair of inclined rolls. The mandrel is located between the inclined rolls and positioned on the rolling line. The piercing mill uses the inclined rolls to rotate the steel billet circumferentially while pressing it towards the mandrel, thereby piercing and rolling the billet to form a hollow tube. The piercing mill is used for piercing and rolling steel billets heated to high temperatures. Therefore, the mandrel, pressed into the billet, is exposed to high temperatures and endures high pressure.

[0003] Currently, when threading seamless tubes, the appropriate mandrel needs to be disassembled and installed according to the threading dimensions. When assembling the mandrel with the piercing roller, it is often manually connected using a threaded groove on the side of the mandrel and the external thread of the piercing roller. During this process, manual operation is prone to inaccurate alignment, potentially causing uneven gaps between the mandrel and the roller, thus affecting piercing quality and accuracy. Furthermore, because the mandrel surface is at high temperatures during disassembly and assembly after operation, manual operation is highly susceptible to accidents. The manual alignment process may also lead to operator fatigue, increasing the risk of errors and impacting production efficiency and product consistency. Secondly, relying on manual hand-held clamps for alignment can also pose safety hazards. Due to the significant force required during operation, improper alignment may cause the clamp to slip or the mandrel to detach, reducing overall production efficiency.

[0004] Therefore, a mandrel assembly fixture for a drilling machine is proposed to solve the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a mandrel assembly fixture for a drilling machine, which has the advantages of rapid assembly of the mandrel for the drilling machine, more stable assembly and avoidance of gap error.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A mandrel assembly fixture for a punching machine, comprising a base;

[0008] A perforated roller rotating mechanism is assembled on the upper end face of the base;

[0009] The base is equipped with a side support frame, and two sets of slide rails are installed on the upper surface of the side support frame. The upper surfaces of the two sets of slide rails together support the drive mechanism.

[0010] The perforated roller rotating mechanism includes a mounting base disposed on the upper end face of the base, a first drive motor mounted on the side of the mounting base, a flange connected to the output end of the first drive motor, and a gear disk sleeved on the outside of the flange.

[0011] The flange has a slot at its center and a perforating roller is engaged in the slot. The perforating roller rotates synchronously with the flange. The other end of the perforating roller is provided with an external thread and a perforating head is threadedly connected to the external thread.

[0012] The driving mechanism includes a support platform disposed on the upper surface of the slide rail. Two mounting brackets are vertically mounted on the upper surface of the support platform. A bearing seat is mounted on the top of each of the two mounting brackets. A bearing is assembled between the two bearing seats. A rotating rod is rotatably connected between the two bearings.

[0013] One end of the rotating rod passes through one of the bearing seats and extends to be connected to a drive gear, which is located on the horizontal side of the gear disk and the two mesh with each other.

[0014] Furthermore, a support bracket is mounted on the upper surface of the base. The support bracket is a rectangular base with slots on both sides for supporting the perforated roller.

[0015] Furthermore, it also includes a top clamp, which is movably configured and used for handheld operation. The top clamp is a claw-type clamp used to hold the perforated top.

[0016] Furthermore, the driving mechanism also includes a second drive motor disposed on the upper surface of the support platform. The output end of the second drive motor is connected to a first pulley. One end of the rotating rod passes through an adjacent bearing seat and extends to be connected to a second pulley. A belt is tensioned between the second pulley and the first pulley.

[0017] Furthermore, a guide rod cylinder is installed on the upper end face of the side support frame, and the output end of the guide rod cylinder extends and connects to the bottom of the support platform.

[0018] Furthermore, the gear disk has a threaded hole on its side and a plurality of positioning screws are connected through the threaded hole. The positioning screws are used to fix the gear disk to the outside of the flange.

[0019] In summary, this utility model has the following beneficial effects:

[0020] 1. Through the coordinated operation of the base, the piercing roller rotation mechanism, the side support frame, and the drive mechanism, automated assembly of the piercing mandrel and the piercing roller is achieved. Specifically, when the piercing roller rotates under the drive of the rotation mechanism, its external thread automatically engages with the internal thread of the piercing mandrel, allowing the mandrel to automatically screw into the assembly under the guidance of the thread, significantly improving assembly efficiency and accuracy. The connection design between the guide rod cylinder and the support platform allows the drive mechanism to be flexibly adjusted on the slide rail, ensuring optimal meshing between the drive gear and the gear disc. Compared to traditional manual assembly methods, this fixture avoids the tediousness and errors of manual rotation operations, significantly reducing labor intensity and improving the consistency of assembly quality and production efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure in this embodiment;

[0022] Figure 2 This is a schematic diagram of the overall installation structure of the drive mechanism in this embodiment;

[0023] Figure 3 This is a schematic diagram of the installation structure of the perforated roller and the perforated top in this embodiment.

[0024] In the figure, 1. Base; 2. Perforated roller rotating mechanism; 21. Mounting seat; 22. First drive motor; 23. Flange; 24. Gear disk; 25. Positioning screw; 26. Perforated roller; 27. Perforated top; 28. Bearing bracket; 3. Side bearing frame; 31. Slide rail; 32. Guide rod cylinder; 4. Drive mechanism; 41. Bearing platform; 42. Second drive motor; 43. First pulley; 44. Mounting frame; 45. Bearing seat; 46. Rotating rod; 47. Second pulley; 48. Drive gear; 5. Top clamp. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.

[0027] First embodiment;

[0028] Reference Figure 1-3 As shown, a preferred embodiment of the present invention is a top assembly fixture for a punching machine, including a base 1;

[0029] A perforated roller rotating mechanism 2 is mounted on the upper end face of the base 1;

[0030] A side support frame 3 is mounted on the side of the base 1. Two sets of slide rails 31 are installed on the upper surface of the side support frame 3. The upper surface of the two sets of slide rails 31 together supports the drive mechanism 4.

[0031] The perforated roller rotating mechanism 2 includes a mounting base 21 disposed on the upper surface of the base 1. A first drive motor 22 is mounted on the side of the mounting base 21. A flange 23 is connected to the output end of the first drive motor 22. A gear disk 24 is sleeved on the outside of the flange 23.

[0032] A slot is provided at the center of the flange 23 and a perforating roller 26 is engaged in the slot. The perforating roller 26 rotates synchronously with the flange 23. An external thread is provided at the other end of the perforating roller 26 and a perforating head 27 is threadedly connected to the external thread.

[0033] The drive mechanism 4 includes a support platform 41 disposed on the upper end face of the slide rail 31. Two mounting brackets 44 are vertically mounted on the upper end face of the support platform 41. A bearing seat 45 is respectively mounted on the top of the two mounting brackets 44. A bearing is assembled between the two bearing seats 45. A rotating rod 46 is rotatably connected between the two bearings.

[0034] One end of the rotating rod 46 passes through one of the bearing seats 45 and extends to be connected to the drive gear 48, which is located on the horizontal side of the gear disk 24 and the two mesh with each other.

[0035] In this embodiment, the automated assembly of the perforating mandrel 27 and the perforating roller 26 is achieved through the coordinated operation of the base 1, the perforating roller rotation mechanism 2, the side support frame 3, and the drive mechanism 4. When the perforating roller 26 rotates under the drive of the rotation mechanism, its external thread automatically engages with the internal thread of the perforating mandrel 27, allowing the mandrel 27 to automatically screw in under the guidance of the thread, significantly improving assembly efficiency and accuracy. The connection design between the guide rod cylinder 32 and the support platform 41 allows the drive mechanism 4 to be flexibly adjusted on the slide rail 31, ensuring that the drive gear 48 and the gear disk 24 maintain optimal meshing. The positioning screw 25 securely fixes the gear disk 24 to the outside of the flange 23 through threaded holes, ensuring the stability and reliability of the transmission system. Compared to traditional manual assembly methods, this fixture avoids the tediousness and errors of manual rotation operations, significantly reducing labor intensity and improving the consistency of assembly quality and production efficiency.

[0036] Second embodiment;

[0037] Reference Figure 3 As shown, a support bracket 28 is mounted on the upper surface of the base 1. The support bracket 28 is a rectangular base with slots on both sides for supporting the perforated roller 26.

[0038] In this embodiment, the support bracket 28 adopts a rectangular base structure design, which has good stability and load-bearing capacity. Slots are provided on both sides of the bracket. These slots can effectively support and limit the perforated roller 26, preventing the perforated roller 26 from shifting or shaking during assembly. This ensures that the connection between the perforated roller 26 and the flange 23 is more secure and reliable. It also facilitates the installation and disassembly of the perforated roller 26, improving the practicality and assembly accuracy of the overall tooling.

[0039] Third embodiment;

[0040] Reference Figure 3 As shown, it also includes a top clamp 5, which is movably set and used for handheld operation. The top clamp 5 is a claw-type clamp used to hold the perforated top 27.

[0041] In this embodiment, the mandrel 5 is movable, facilitating handheld operation and offering excellent flexibility and operability. The mandrel 5 is designed as a claw-type clamp structure, securely holding the perforating mandrel 27. During assembly, the operator holds the mandrel 5 to align the perforating mandrel 27 with the external thread at the end of the perforating roller 26. Combined with the rotation of the perforating roller rotating mechanism 2, this achieves automatic screw-in assembly of the perforating mandrel 27 and the perforating roller 26, effectively reducing the operator's workload, avoiding the inconvenience of traditional manual rotation assembly methods, and improving assembly efficiency and quality.

[0042] Furthermore, the top clamp 5 is an existing mature claw-type clamp, which users can adapt and select according to the size of the perforated top 27.

[0043] Fourth embodiment;

[0044] Reference Figure 1-2 As shown, the drive mechanism 4 also includes a second drive motor 42 disposed on the upper surface of the support platform 41. The output end of the second drive motor 42 is connected to a first pulley 43. One end of the rotating rod 46 passes through the adjacent bearing seat 45 and extends to be connected to a second pulley 47. A belt is tensioned between the second pulley 47 and the first pulley 43.

[0045] In this embodiment, the drive mechanism 4 further includes a second drive motor 42 disposed on the upper surface of the support platform 41. The output end of the second drive motor 42 is connected to a first pulley 43. One end of the rotating rod 46 passes through the adjacent bearing seat 45 and extends outward to connect to a second pulley 47. A belt is tensioned between the second pulley 47 and the first pulley 43, forming a complete belt drive system. Driven by the second drive motor 42, power is transmitted to the rotating rod 46 via the transmission chain of the first pulley 43, the belt, and the second pulley 47. Then, through the meshing of the drive gear 48 at the end of the rotating rod 46 with the gear disk 24, controllable drive of the perforated roller rotating mechanism 2 is achieved. This transmission method has the advantages of smooth transmission, low noise, and easy maintenance.

[0046] Fifth embodiment;

[0047] Reference Figure 1 As shown, a guide rod cylinder 32 is installed on the upper surface of the side support frame 3, and the output end of the guide rod cylinder 32 extends and connects to the bottom of the support platform 41.

[0048] In this embodiment, the output end of the guide rod cylinder 32 extends upward and connects to the bottom of the support platform 41. Through the extension and retraction of the guide rod cylinder 32, the support platform 41 can be moved back and forth along the slide rail 31, thereby achieving precise adjustment of the meshing position between the drive gear 48 and the gear disk 24. This design not only ensures that the drive gear 48 and the gear disk 24 always maintain a good meshing state, avoiding transmission failure or gear wear caused by positional deviation, but also allows for positional adaptation according to different specifications of the perforated roller 26 and perforated mandrel 27, improving the versatility and adaptability of the tooling. At the same time, the use of the guide rod cylinder 32 also realizes automated control, reducing the workload of manual adjustment.

[0049] Sixth embodiment;

[0050] Reference Figure 1 As shown, the gear disk 24 has threaded holes on its side and several positioning screws 25 are connected through the threaded holes. The positioning screws 25 are used to fix the gear disk 24 to the outside of the flange 23.

[0051] In this embodiment, threaded holes are formed on the side of the gear disk 24, and several positioning screws 25 are connected through these threaded holes. The function of the positioning screws 25 is to reliably fix the gear disk 24 to the outside of the flange 23, preventing relative slippage or loosening between the gear disk 24 and the flange 23 when rotating at high speed or subjected to large torque. The reasonably distributed positioning screws 25 can apply a uniform tightening force, ensuring the coaxiality and connection rigidity between the gear disk 24 and the flange 23, so that the power of the first drive motor 22 can be stably and reliably transmitted to the gear disk 24, and then transmitted to the entire transmission system through the meshing of the drive gear 48, ensuring the stable operation and assembly accuracy of the assembly fixture.

[0052] Specific implementation process

[0053] Step 1: First, the perforated roller 26 is secured by clamping it through the slot at the center of the flange 23, ensuring that the perforated roller 26 rotates synchronously with the flange 23. Simultaneously, the slots in the support bracket 28 are used to support and position the perforated roller 26, ensuring its stability during assembly. The operator then uses the mandrel 5 to clamp the perforating mandrel 27, aligning the threaded portion of the mandrel 27 with the external thread at the other end of the perforated roller 26, completing the initial docking preparation.

[0054] Step 2: Start the first drive motor 22, which drives the perforated roller 26 to rotate via the connection of flange 23 and gear disk 24. Simultaneously, the second drive motor 42 drives the rotating rod 46 to rotate via the transmission system of the first pulley 43, belt, and second pulley 47. This, in turn, achieves precise control of the perforated roller rotation mechanism 2 through the meshing of the drive gear 48 with the gear disk 24. During this process, the guide rod cylinder 32 can adjust the position of the support platform 41 as needed to ensure that the drive gear 48 and gear disk 24 maintain a good meshing state.

[0055] Step 3: As the perforating roller 26 continues to rotate under the drive of the perforating roller rotating mechanism 2, the external thread at the top of the perforating roller 26 matches the internal thread of the perforating mandrel 27. Guided by the thread, the perforating mandrel 27 will automatically move and screw towards the perforating roller 26. The operator only needs to maintain the stable clamping of the mandrel clamp 5, without the need for complex manual rotation operations. The fixed connection between the gear disk 24 and the flange 23 is ensured by the positioning screw 25, ultimately achieving rapid and precise assembly of the perforating mandrel 27 and the perforating roller 26, significantly improving assembly efficiency and accuracy.

[0056] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

[0057] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description in the specification and the accompanying drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

Claims

1. A mandrel assembly fixture for a drilling machine, characterized in that: Including the base (1); The upper end face of the base (1) is equipped with a perforated roller rotating mechanism (2). The base (1) is equipped with a side support frame (3) on its side. Two sets of slide rails (31) are installed on the upper surface of the side support frame (3). The upper surfaces of the two sets of slide rails (31) are jointly supported by a drive mechanism (4). The perforated roller rotating mechanism (2) includes a mounting base (21) disposed on the upper end face of the base (1), a first drive motor (22) is mounted on the side of the mounting base (21), a flange (23) is connected to the output end of the first drive motor (22), and a gear disk (24) is sleeved on the outside of the flange (23). The flange (23) has a slot at its center and a perforating roller (26) is engaged in the slot. The perforating roller (26) rotates synchronously with the flange (23). The other end of the perforating roller (26) is provided with an external thread and a perforating head (27) is threadedly connected through the external thread. The drive mechanism (4) includes a support platform (41) disposed on the upper end face of the slide rail (31). Two mounting brackets (44) are vertically installed on the upper end face of the support platform (41). A bearing seat (45) is installed on the top of each of the two mounting brackets (44). A bearing is assembled between the two bearing seats (45), and a rotating rod (46) is rotatably connected between the two bearings. One end of the rotating rod (46) passes through one of the bearing seats (45) and extends to be connected to a drive gear (48), which is located on the horizontal side of the gear disk (24) and the two mesh with each other.

2. The punch assembly fixture for a drilling machine according to claim 1, characterized in that: The upper surface of the base (1) is equipped with a support bracket (28). The support bracket (28) is a rectangular base with slots on both sides. The slots are used to support the perforated roller (26).

3. The punch assembly fixture for a drilling machine according to claim 1, characterized in that: It also includes a top clamp (5), which is movably set and used for handheld operation. The top clamp (5) is a claw-type clamp used to hold the perforated top (27).

4. The punch assembly fixture for a drilling machine according to claim 1, characterized in that: The drive mechanism (4) further includes a second drive motor (42) disposed on the upper surface of the support platform (41). The output end of the second drive motor (42) is connected to a first pulley (43). One end of the rotating rod (46) passes through the adjacent bearing seat (45) and extends to be connected to a second pulley (47). A belt is tensioned between the second pulley (47) and the first pulley (43).

5. The punch assembly fixture for a drilling machine according to claim 1, characterized in that: A guide rod cylinder (32) is installed on the upper surface of the side support frame (3), and the output end of the guide rod cylinder (32) extends to connect with the bottom of the support platform (41).

6. The punch assembly fixture for a drilling machine according to claim 1, characterized in that: The gear disk (24) has a threaded hole on its side and a number of positioning screws (25) are connected through the threaded hole. The positioning screws (25) are used to fix the gear disk (24) to the outside of the flange (23).

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