Automatic multi-station thread tapping machine

Abstract

The utility model discloses an automatic multi-station thread tapping machine which comprises a support, a first platform and a workbench. A clamping assembly; the clamping devices are uniformly distributed at the upper end of the workbench and are used for clamping a to-be-machined workpiece; and the moving assembly is arranged on one side of the first platform, and the upper end of the moving assembly is provided with a milling cutter set used for conducting tapping operation on the machined part clamped in the clamping assembly. According to the clamping assembly, the movement principle of a four-rod mechanism is adopted, self-locking of the mechanism is achieved by moving to a dead point in the movement process of the mechanism, and clamping and fixing of the PVC pipe fitting are achieved through the dead point of the mechanism. And operation is easy and convenient, the fixing mode is stable, and the clamping efficiency of an operator on the PVC pipe fitting is greatly improved. When pipe fittings with different sizes and diameters are clamped, the pipe fittings with different sizes and diameters can be clamped only by adjusting the screwing-out length of the screw rod, so that the application range of equipment is greatly widened, the equipment can simultaneously machine a plurality of pipe fittings, and the tapping production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of thread tapping machines, in particular to an automated multi-station thread tapping machine. Background Art

[0002] The cooling tower uses water as a circulating coolant, absorbing heat from the system and discharging it into the atmosphere to perform heat exchange and generate steam. The steam evaporates and takes away the heat to achieve evaporative heat dissipation and cooling effects, so water is needed to circulate. The overflow pipe acts as a water flow pipe to control the water level.

[0003] The overflow pipe installed at the bottom of the cooling tower is generally made of PVC material and is used to adjust the water level in the bottom basin. When the water level is too high, the cooling tower will flow out of the overflow pipe.

[0004] The end faces of PVC overflow pipes need to be threaded to facilitate pipe connection. The existing technology is manual threading. Manual tapping not only has low production efficiency, but also cannot guarantee the quality of tapping. Based on this, it is urgent to design an automated rotary table threading machine to replace manual tapping and improve the efficiency and quality of threading on the ends of PVC overflow pipes. Utility Model Content

[0005] The purpose of this utility model is to provide an automated multi-station thread tapping machine to solve the problem of low efficiency of manual tapping mentioned in the above background technology. The following technical solution is provided: an automated multi-station thread tapping machine, comprising:

[0006] A bracket, wherein the upper end of the bracket is provided with a first platform;

[0007] A workbench, rotatably arranged on the upper end surface of the first platform;

[0008] Clamping components; evenly distributed on the upper end of the workbench, used to clamp the workpiece to be processed;

[0009] The moving assembly is arranged on one side of the first platform. The upper end of the moving assembly is provided with a milling cutter group for tapping the workpiece clamped in the clamping assembly.

[0010] In the present technical solution, when the present device is in use, the PVC pipe fittings to be tapped are first placed on the clamping assembly in sequence, and then the workpiece preliminarily fixed in the clamping assembly is fixed and clamped by manually moving the assembly; when all the PVC pipe fittings to be processed are installed and fixed, the moving assembly is started, and the moving assembly and the milling cutter group are installed as a whole. When the moving assembly is started, it drives the milling cutter group to move horizontally to one end of the pipe fitting to be tapped. At this time, the milling cutter group is started, and the milling cutter group gradually completes the tapping operation on one end of the workpiece. When the tapping of one end is completed, the milling cutter group is reset. Since the clamping assemblies are evenly arranged on the end face of the workbench, the rotation of the clamping assembly drives the other workpiece to the position to be processed, and the milling cutter group is started again to complete the tapping operation on it. The rotation of the workbench is controlled by the servo motor servo encoder and the PLC electronic control drive. The servo motor and the PLC encoding driver in this application are not specifically limited.

[0011] In any of the above technical solutions, further, four groups of first fixed blocks and four groups of second fixed blocks are evenly arranged on the upper end surface of the workbench, the middle parts of the first fixed blocks and the second fixed blocks are recessed inward to form right-angle grooves, and the first fixed blocks and the corresponding second fixed blocks are buckled together to clamp and fix the upper and lower ends of the workpiece.

[0012] The clamping assembly includes a base, which is fixedly arranged on the upper end surface of the workbench. A clamping arm is hingedly provided on one side of the base, and a connecting rod is hingedly provided on the other side of the base. The clamping arm is right-angled and is hinged to one end of the clamping handle at the right-angle end of the clamping arm, and the other end of the connecting rod is hinged to the middle of the clamping handle.

[0013] A screw rod is provided at one end of the clamping arm, and a pressing block is provided on one side of the screw rod close to the workbench, and the pressing block is placed just above the first fixing block and the second fixing block.

[0014] In this technical solution, the clamping assembly is used to secure the PVC pipe fittings initially placed on the workbench. After the pipe fittings are initially placed in the first and second fixing blocks, the operator manually swings the clamping handle upward. After the clamping handle is pulled up, the front end of the clamping handle (the end hinged to the clamping arm and connecting rod) swings. At this time, the base, clamping arm, connecting rod, and the front end of the clamping handle form a parallelogram mechanism. When the front end of the clamping handle swings to a position that is collinear with the connecting rod, the clamping arm and clamping handle are at the dead point of the mechanism.

[0015] After finding this position, rotate the screw to gradually bring the lower end of the clamping block closer to the upper surface of the second fixing block until the clamping block is completely pressed against the upper surface of the second fixing block. At this point, mark the position of the screw. When clamping a pipe of the same specification and size again, simply place the pipe on the workbench to initially secure it. Then, pull the clamping handle until it reaches the dead center to secure the clamping assembly to the upper end of the workbench.

[0016] The clamping assembly in this application uses the motion principle of a four-bar mechanism, utilizing the mechanism's movement to a dead point to achieve self-locking, and clamping and fixing the PVC pipe fittings through the mechanism's dead point. The ease of operation and stable fixing method greatly improve the operator's efficiency in clamping PVC pipe fittings. When clamping pipe fittings of different sizes and diameters, simply adjusting the screw's unscrewing length allows for clamping of pipe fittings of different sizes and diameters, greatly expanding the device's range of use, enabling the simultaneous processing of multiple pipe fittings, and improving tapping production efficiency.

[0017] In any of the above technical solutions, the moving assembly further comprises a guide rail fixedly mounted on the upper end surface of the first platform, a slider slidably mounted on the upper side of the guide rail, and a cylinder pushes the slider to move along the extension direction of the guide rail, with the ends of the cylinder respectively fixed to one side of the guide rail and the slider. The milling cutter assembly is fixedly mounted on the upper end surface of the slider. The moving assembly and the milling cutter assembly each comprise two sets, which are arranged vertically on adjacent sides of the first platform.

[0018] In this technical solution, the workbench controls the rotation of the main shaft through a three-phase asynchronous motor. Since pneumatic transmission has the advantages of fast response, simple structure, environmental protection, low cost and smooth operation, the operation feed of the moving component is achieved by using an air pressure regulator to adjust the extension and retraction of the cylinder.

[0019] By adding two sets of mutually perpendicular moving components, the slider slides along the guide rail to realize the movement of the moving components in the x and y axes. The main movement of the milling cutter group is controlled by a servo motor, and the main movement of the power head is driven by a motor. The speed and power of the spindle can be controlled to adapt to multi-axis milling threads.

[0020] The milling cutter assembly used in this application can be a common milling cutter on the market. The power device used for feeding and transmission during the milling process of the milling cutter assembly and the power used to control the cutting during the cutting process are not specifically limited in this application.

[0021] The beneficial effects of the present invention are as follows: the clamping assembly in the present application adopts the motion principle of a four-bar mechanism, utilizing the mechanism's movement to a dead point to achieve self-locking, and clamping and fixing the PVC pipe fittings through the mechanism's dead point. The simple operation and stable fixing method greatly improve the operator's efficiency in clamping PVC pipe fittings. When clamping pipe fittings of different sizes and diameters, only the screw's unscrewing length needs to be adjusted to achieve clamping of pipe fittings of different sizes and diameters, greatly expanding the scope of use of the equipment, enabling the equipment to process multiple pipe fittings simultaneously, and improving tapping production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the appearance of the utility model;

[0023] Figure 2 It is a top view of the utility model;

[0024] Figure 3 It is a right side view of the utility model;

[0025] Figure 4 It is a structural diagram of the clamping assembly in the utility model. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0027] In the description of this application, it should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0028] Example 1:

[0029] like Figure 1-3 As shown, this embodiment provides an automated multi-station thread tapping machine, comprising:

[0030] The bracket 10 has a first platform 20 at its upper end;

[0031] A workbench 30 is rotatably disposed on the upper end surface of the first platform 20;

[0032] The clamping assembly 40 is evenly arranged on the upper end of the workbench 30 and is used to clamp the workpiece to be processed;

[0033] The moving assembly 50 is disposed on one side of the first platform 20 . A milling cutter assembly 60 for tapping the workpiece clamped in the clamping assembly 40 is disposed on the upper end of the moving assembly 50 .

[0034] In the present technical solution, when the present device is in use, the PVC pipe fittings to be tapped are first placed on the clamping assembly 40 in sequence, and then the workpiece preliminarily fixed in the clamping assembly 40 is fixed and clamped by manually moving the assembly 50; when all the PVC pipe fittings to be processed are installed and fixed, the moving assembly 50 is started, and the moving assembly 50 is installed as a whole with the milling cutter assembly 60. When the moving assembly 50 is started, it drives the milling cutter assembly 60 to move horizontally to one end of the pipe fitting to be tapped. At this time, the milling cutter assembly 60 is started, and the milling cutter assembly 60 gradually completes the tapping operation on one end of the workpiece. When the tapping is completed, the milling cutter assembly 60 is reset. Since the clamping assembly 40 is evenly arranged on the upper end surface of the workbench 30, the clamping assembly 40 rotates and drives another workpiece to the position to be processed. At the same time, the milling cutter assembly 60 is started again to complete the tapping operation on it. The rotation of the workbench 30 is controlled by a servo motor servo encoder and a PLC electronic control drive. The servo motor and PLC encoder driver in this application are not specifically limited.

[0035] In a preferred embodiment of the present invention:

[0036] like Figure 4 As shown, specifically, four groups of first fixing blocks 31 and four groups of second fixing blocks 32 are evenly arranged on the upper end surface of the workbench 30, the middle parts of the first fixing blocks 31 and the second fixing blocks 32 are recessed inward to form right-angle grooves, and the first fixing blocks 31 and the corresponding second fixing blocks 32 are buckled together to clamp and fix the upper and lower ends of the workpiece.

[0037] The clamping assembly 40 includes a base 41, which is fixedly arranged at the upper end surface of the workbench 30. A clamping arm 42 is hingedly provided on one side of the base 41, and a connecting rod 43 is hingedly provided on the other side of the base 41; the clamping arm 42 is at a right angle, and is hinged to one end of a clamping handle 44 at the right angle end of the clamping arm 42, and the other end of the connecting rod 43 is hinged to the middle of the clamping handle 44.

[0038] A screw rod 45 is provided at one end of the clamping arm 42 . A pressing block 46 is provided on a side of the screw rod 45 close to the workbench 30 . The pressing block 46 is placed directly above the first fixing block 31 and the second fixing block 32 .

[0039] In the present technical solution, the clamping assembly 40 is used to fix the PVC pipe fittings initially placed on the workbench 30. After the pipe fittings are initially placed in the first fixing block 31 and the second fixing block 32, the operator manually swings the clamping handle 44 to pull it upward. After the clamping handle 44 is pulled up, the front end of the clamping handle 44 (the end hinged to the clamping arm 42 and the connecting rod 43) swings. At this time, the base 41, the clamping arm 42, the connecting rod 43 and the front end of the clamping handle 44 form a parallelogram mechanism. When the front end of the clamping handle 44 swings to a position that is collinear with the connecting rod 43, the clamping arm 42 and the clamping handle 44 are at the dead point of the mechanism.

[0040] After finding this position, the screw 45 is rotated to gradually bring the lower end of the pressing block 46 closer to the upper surface of the second fixing block 32 until the pressing block 46 completely presses against the upper surface of the second fixing block 32. At this point, the position of the screw 45 is marked. When a pipe of the same specification and size is clamped again, it is only necessary to place the pipe on the workbench 30 for preliminary fixation. Then, by pulling the clamping handle 44 to move it to the dead point, the clamping assembly 40 can be pressed and fixed to the upper end of the workbench 30.

[0041] The clamping assembly 40 of this application utilizes the principle of a four-bar linkage, utilizing the mechanism's dead point during movement to achieve locking. This dead point allows for the clamping and securing of the device, resulting in ease of operation and a stable securing method, significantly improving the operator's efficiency in clamping PVC pipe fittings. Furthermore, when clamping pipes of varying diameters, simply adjusting the length of the screw 45 allows for clamping of various sizes and diameters, significantly expanding the device's range of use.

[0042] In a preferred embodiment of the present invention:

[0043] like Figure 1-3 As shown, the moving assembly 50 specifically includes a guide rail 51 fixedly mounted on the upper end surface of the first platform 20. A slider 52 is slidably mounted on the upper side of the guide rail 51. A cylinder 53 pushes the slider 52 to move along the extension direction of the guide rail 51. The two ends of the cylinder 53 are respectively fixed to one side of the guide rail 51 and the slider 52. A milling cutter assembly 60 is fixed to the upper end surface of the slider 52. The moving assembly 50 and the milling cutter assembly 60 each have two sets, which are arranged vertically on adjacent sides of the first platform 20.

[0044] In this technical solution, the workbench 30 controls the rotation of the main shaft through a three-phase asynchronous motor. Since pneumatic transmission has the advantages of fast response, simple structure, environmental protection, low cost and smooth operation, the operation feed of the moving component 50 is achieved by using a pneumatic pressure regulator to adjust the extension and retraction of the cylinder 53.

[0045] By adding two sets of mutually perpendicular moving components 50, the slider 52 slides along the guide rail 51, so that the moving component 50 can be moved in the x and y axes. The main movement of the milling cutter group 60 is controlled by a servo motor, and the main movement of the power head is driven by a motor. The speed and power of the spindle can be controlled to adapt to multi-axis milling threads.

[0046] The milling cutter assembly 60 used in this application can be a common milling cutter on the market. The power device used for feeding and transmission of the milling cutter assembly 60 during milling and the power used to control cutting during cutting are not specifically limited in this application.

[0047] The embodiments of the present application are described above in conjunction with the accompanying drawings. Unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. An automated multi-station thread tapping machine, characterized in that: include: A bracket (10), wherein the upper end of the bracket (10) is provided with a first platform (20); a workbench (30) rotatably disposed on the upper end surface of the first platform (20); A clamping assembly (40) is evenly arranged on the upper end of the workbench (30) and is used to clamp the workpiece to be processed; A moving assembly (50) is arranged on one side of the first platform (20), and a milling cutter group (60) for tapping a workpiece clamped in the clamping assembly (40) is provided at the upper end of the moving assembly (50).

2. The automated multi-station thread tapping machine according to claim 1, characterized in that: Four groups of first fixing blocks (31) and four groups of second fixing blocks (32) are evenly arranged on the upper end surface of the workbench (30), the middle parts of the first fixing blocks (31) and the second fixing blocks (32) are recessed inward to form right-angle grooves, and the first fixing blocks (31) and the corresponding second fixing blocks (32) are buckled together to clamp and fix the upper and lower ends of the workpiece.

3. The automated multi-station thread tapping machine according to claim 2, characterized in that: The clamping assembly (40) comprises: A base (41) is fixedly arranged on the upper end surface of the workbench (30), and a clamping arm (42) is hingedly provided on one side of the base (41), and a connecting rod (43) is hingedly provided on the other side of the base (41); the clamping arm (42) is in a right-angle shape, and is hinged to one end of a clamping handle (44) at the right-angle end of the clamping arm (42), and the other end of the connecting rod (43) is hinged to the middle of the clamping handle (44).

4. The automated multi-station thread tapping machine according to claim 3, characterized in that: A screw rod (45) is provided at one end of the clamping arm (42), and a pressing block (46) is provided on the side of the screw rod (45) close to the workbench (30), and the pressing block (46) is placed directly above the first fixing block (31) and the second fixing block (32).

5. The automated multi-station thread tapping machine according to claim 4, characterized in that: The moving assembly (50) includes a guide rail (51) fixedly arranged at the upper end surface of the first platform (20), a slider (52) is slidably provided on the upper side of the guide rail (51), and a cylinder (53) pushes the slider (52) to move along the extension direction of the guide rail (51), and the two ends of the cylinder (53) are respectively fixedly arranged on one side of the guide rail (51) and the slider (52).

6. The automated multi-station thread tapping machine according to claim 5, characterized in that: The milling cutter assembly (60) is fixedly arranged on the upper end surface of the slide block (52).

7. The automated multi-station thread tapping machine according to claim 1, characterized in that: The moving assembly (50) and the milling cutter assembly (60) each have two groups, and are vertically arranged on adjacent sides of the first platform (20).

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