CN207681657U - A kind of external thread tapping device - Google Patents

Abstract

The utility model discloses a kind of external thread tapping devices, including pedestal, the first bearing piece, the second bearing piece, third bearing piece, screw die, push rod, return unit and actuator, first bearing piece, the second bearing piece and third bearing piece are slidably arranged on pedestal, and the first bearing piece, the second bearing piece and third bearing piece are arranged side by side successively；There is a screw die mounting portion, screw die to be installed on screw die mounting portion, actuator is drivingly connected with screw die in first bearing piece；There is the workpiece guidance part being placed on it for workpiece in second bearing piece；There is a push rod mounting portion in third bearing piece.The utility model is provided with the first guide rod and the second guide rod so that workpiece can keep very high levelness, to reduce the feeding required time, improve working efficiency；Worker utilizes the manual tapping of this device, can not have to push away tail stock to draw, but can carry out tapping operation with sitting posture, substantially increases the working efficiency of workpeople, also reduces labor intensity.

Description

A device for tapping external thread

technical field

The utility model belongs to the field of thread tapping, in particular to an external thread tapping device.

Background technique

The working principle of the earliest external thread tapping device is: use the top of the lathe to withstand the center hole at the tail of the tap, use a wrench to clamp the square part of the tap tail, and use the rotational movement of the lathe to tap the external thread. At this time, the tailstock of the lathe must follow the The direction of tapping the external thread is manually followed. The work efficiency of tapping external thread method is lower like this, and the worker's labor intensity is big, and the workpiece rejection rate that screw tap is twisted and broken due to pressure is also relatively high.

The working principle of the external thread tapping device that is widely used now is: use the tap clamp to clamp the tap, then install the clamp on the tailstock of the lathe, and utilize the rotary motion of the lathe to tap the external thread. At this time, the tailstock of the lathe still needs to manually follow up with the direction of tapping the external thread to introduce the tap into the hole. After the external thread is tapped, in order to facilitate the unloading of the workpiece, the tailstock must be manually removed. Using this method to tap the external thread, although the probability of scrapping the workpiece caused by the breakage of the tap has been reduced a lot, and the work efficiency has also been improved, but the labor intensity of the workers is still very high, which is not conducive to a large increase in work efficiency and assembly line operation. realization.

Utility model content

The problem to be solved by the utility model is that the work efficiency of the existing external thread tapping device is low, and the labor intensity of the workers is high.

In order to achieve the above object, the technical scheme that the utility model takes is:

An external thread tapping device provided by the utility model comprises a base, a first support block, a second support block, a third support block, a die, a push rod, a reset part and a drive part, the first support block, the second support block and the third support block are slidingly arranged on the base, and the first support block, the second support block and the third support block are arranged side by side in sequence; the first support block has a die mounting part, the die is installed on the die mounting part, and the driving part Driven and connected with the die to drive the die to rotate on the die installation part; the second support has a workpiece guide for placing the workpiece on it; the third support has a push rod installation part, and the push rod is slidably set on the The push rod installation part, the push rod has a clamping part for clamping the workpiece, the die installation part, the workpiece guide part and the push rod installation part are roughly located on the same straight line, so that the push rod can push the workpiece along this straight line Move towards the direction of the die; the reset part is set on the third support block and acts on the push rod, and its reset direction is opposite to the direction of the push rod, so as to realize the automatic reset of the push rod after tapping the external thread, greatly improving the working efficiency, and workers The labor intensity is reduced.

Further, it also includes a first guide rod and a second guide rod, a first through hole and a second through hole are opened on the first support block, and a third through hole opposite to the position of the first through hole is opened on the second support block. hole, and the fourth through hole opposite to the second through hole, the first through hole and the second through hole are symmetrically distributed at both ends of the die mounting part, and the first guide rod is passed through the first through hole and the third through hole holes, and the second guide rod is passed through the second through hole and the fourth through hole. The first guide rod is passed through the first through hole and the third through hole, and the second guide rod is passed through the second through hole and the fourth through hole, the positions of the first support block and the second support block are adjusted, and The push rod plays a very good guiding role in the process of pushing the workpiece to move, thereby improving work efficiency.

Further, there are two guide rails on the base, the die mounting part, the workpiece guide part and the push rod mounting part are all located on the vertical line of the two guide rails, and the first support block, the second support block and the third support block respectively have Two guide rails slidingly fit six sliders.

Further, the reset member is a spring, and since the required elastic recovery force is small, a single spring can be realized, which is easy to manufacture and has a good reset effect.

Further, the driving part includes a motor and a gear transmission component, the output end of the motor is connected to the input end of the gear transmission component, and the output end of the gear transmission component is connected to the die. The setting of gear transmission components makes the driving process more stable.

Further, the die mounting part is a fifth through hole, and a bearing is arranged in the fifth through hole, and the die is in interference fit with the inner ring of the bearing. The die mounting part has a simple structure and good mounting effect.

Further, the workpiece guiding part is an arc-shaped groove. The arc-shaped groove is suitable for cylindrical workpieces and can play a certain guiding role. If it is a square workpiece, the groove can be changed into a suitable square groove.

Further, the push rod installation part is the sixth through hole, and the push rod is passed through the sixth through hole.

Further, the first support block, the second support block and the third support block are all metal plates.

The utility model adopts the above technical scheme and has the following beneficial effects:

The workpiece of the utility model is supported by the second support block and the third support block, and the first guide rod and the second guide rod are provided, so that the workpiece can maintain a high level, thereby reducing the time required for feeding, Improve work efficiency; all components on the base can be replaced and adjusted in position, and the replacement and position adjustment are extremely convenient, so that the effect of simple structure, convenient disassembly and assembly, and greatly reduced cost can be achieved; workers use this device to manually For tapping, you don't need to push and pull the tailstock of the lathe, but you can perform tapping operations in a sitting position, which greatly improves the work efficiency of workers and reduces labor intensity.

Description of drawings

Figure 1 is a schematic front view of this embodiment.

Fig. 2 is a schematic left view of this embodiment.

Detailed ways

In order to further illustrate various embodiments, the utility model provides accompanying drawings. These drawings are part of the disclosure content of the present invention, which are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementations and advantages of the present utility model. Components in the figures are not drawn to scale, and similar component symbols are generally used to denote similar components.

The utility model will be further described in conjunction with accompanying drawing and specific embodiment now.

As shown in Figures 1 and 2, a device for tapping external threads provided in this embodiment includes a base 1, a first support block 2, a second support block 3, a third support block 4, a die, a push rod 5, a reset 6 and the driver, the first support block 2, the second support block 3 and the third support block 4 are all slidably arranged on the base 1, and the first support block 2, the second support block 3 and the third support block 4 are arranged side by side in sequence Setting; the first support block 2 has a die installation part, the die is installed in the die installation part, and the driving part is connected with the die drive to drive the die to rotate on the die installation part; the second support block 3 has a die for the workpiece 7 to be placed on The workpiece guide part on it; the third support block 4 has a push rod installation part, the push rod 5 is slidably arranged on the push rod installation part, and the push rod 5 has a clamping part for clamping the workpiece 7, and the die The installation part, the workpiece guide part and the push rod installation part are roughly located on the same straight line, so that the push rod 5 pushes the workpiece 7 along this straight line to move toward the direction of the die installation part; the reset member 6 is arranged on the third support block 4 and Acting on the push rod 5, its reset direction is opposite to the pushing direction of the push rod 5, so as to realize the automatic reset of the push rod 5 after tapping the external thread, the work efficiency is greatly improved, and the labor intensity of the workers is reduced.

As shown in Figure 1, it also includes a first guide rod and a second guide rod. The first support block 2 is provided with a first through hole and a second through hole, and the second support block 3 is provided with a position matching the first through hole. The opposite third through hole, and the fourth through hole opposite to the second through hole, the first through hole and the second through hole are symmetrically distributed at both ends of the die mounting part, and the first guide rod is passed through the first through hole. hole and the third through hole, and the second guide rod passes through the second through hole and the fourth through hole. The first guide rod is passed through the first through hole and the third through hole, and the second guide rod is passed through the second through hole and the fourth through hole, and the positions of the first support block 2 and the second support block 3 are adjusted , And the push rod plays a very good guiding role in the process of pushing the workpiece to move, thereby improving work efficiency.

In this embodiment, there are two guide rails on the base 1, the die mounting part, the workpiece guide part and the push rod mounting part are all located on the vertical line of the two guide rails, the first support block, the second support block and the third support block There are six sliders that are slidingly matched with the two guide rails respectively. The setting of the guide rail slider is a conventional technical means, and will not be described in detail here.

In this embodiment, the reset member 6 is a spring 6, which can be realized by a single spring due to the small elastic recovery force required, which is easy to manufacture and has a good reset effect.

As shown in Figures 1 and 2, the driving member includes a motor (not shown in the figure, it is a conventional motor, which will not be described in detail here) and a gear transmission part 9, the output end of the motor is connected with the input end of the gear transmission part, and the gear transmission The output end of the component is connected with the die. The setting of gear transmission components makes the driving process more stable.

In this embodiment, the die mounting part is the fifth through hole, and a bearing is arranged in the fifth through hole, and the die is in interference fit with the inner ring of the bearing. The die mounting part has a simple structure and good mounting effect.

In this embodiment, the workpiece guiding part is an arc-shaped groove. The arc-shaped groove is suitable for cylindrical workpieces and can play a certain guiding role. If it is a square workpiece, the groove can be changed into a suitable square groove.

In this embodiment, the push rod installation part is the sixth through hole, and the push rod is passed through the sixth through hole.

In this embodiment, the first support block 1 , the second support block 2 and the third support block 3 are all metal plates, but they are not limited thereto, and may be other materials, which will not be described in detail here.

The workpiece of the utility model is supported by the second support block 3 and the third support block 4, and is provided with a first guide rod and a second guide rod, so that the workpiece can maintain a high level, thereby reducing the required feeding time and improve work efficiency; all parts are embedded on the base through slide rails. When it is necessary to replace different thread types, just replace different dies. All components on the base can be replaced and adjusted. It is extremely convenient, and then it really achieves the effect of simple structure, convenient disassembly and assembly, and a large reduction in cost; workers use this device to manually tap the thread, and they can tap the thread in a sitting position without pushing the tailstock of the lathe The operation greatly improves the work efficiency of the workers and reduces the labor intensity.

As a semi-automatic die machine, this device can also be used as a small-scale teaching tool, which is convenient for students who are new to practical training to successfully tap external threads on nylon and aluminum rods.

Although the utility model has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that, without departing from the spirit and scope of the utility model defined by the appended claims, changes in form and details may be made. Making various changes to the utility model is within the protection scope of the utility model.

Claims (9)

1. a kind of external thread tapping device, it is characterised in that：Including pedestal, the first bearing piece, the second bearing piece, third bearing piece, screw die, push away Bar, return unit and actuator, the first bearing piece, the second bearing piece and third bearing piece are slidably arranged on pedestal, the first bearing piece, second Bearing piece and third bearing piece are arranged side by side successively；There is a screw die mounting portion, screw die to be installed on screw die mounting portion in first bearing piece, drive Moving part is drivingly connected with screw die, to drive screw die to be rotated on screw die mounting portion；Have in second bearing piece and is placed on it for workpiece On workpiece guidance part；There is a push rod mounting portion, push rod to be slideably positioned in push rod mounting portion, have on push rod in third bearing piece A clamping section for clamping workpiece, screw die mounting portion, workpiece guidance part and push rod mounting portion are located substantially on same straight line, with Push rod is allowed to be moved toward screw die mounting portion direction along this linear pushing workpiece；Return unit is set in third bearing piece and acts on Push rod resets direction with push rod pushing direction on the contrary, to realize automatically reseting for push rod after external threading.

2. external thread tapping device according to claim 1, it is characterised in that：Further include that the first guide rod and second are oriented to Bar offers first through hole and the second through-hole in the first bearing piece, opposite with first through hole position is offered in the second bearing piece Three through-holes and the fourth hole opposite with the second lead to the hole site, first through hole and the second through-hole are symmetrically distributed in screw die installation The both ends in portion, the first guide rod are arranged in first through hole and third through-hole, and the second guide rod is arranged in the second through-hole and four-way Hole.

3. external thread tapping device according to claim 1, it is characterised in that：On pedestal have two guide rails, screw die mounting portion, Workpiece guidance part and push rod mounting portion are respectively positioned on the perpendicular bisector of two guide rails, are divided in the first bearing piece, the second bearing piece and third bearing piece Six sliding blocks that Ju You not be slidably matched with two guide rails.

4. external thread tapping device according to claim 1, it is characterised in that：Return unit is spring.

5. external thread tapping device according to claim 1, it is characterised in that：Actuator includes motor and gear drive portion The input terminal of part, motor output end and gear transmission part connects, and the output end of gear transmission part is connect with screw die.

6. external thread tapping device according to claim 1, it is characterised in that：Screw die mounting portion is fifth hole, and the 5th is logical A bearing is provided in hole, screw die is interference fitted with bearing inner race.

7. external thread tapping device according to claim 1, it is characterised in that：Workpiece guidance part is circular groove.

8. external thread tapping device according to claim 1, it is characterised in that：Push rod mounting portion is the 6th through-hole.

9. external thread tapping device according to claim 1, it is characterised in that：First bearing piece, the second bearing piece and third bearing piece It is sheet metal.