CN216421314U - Flexible tapping machine - Google Patents

Abstract

The utility model discloses a flexible tapping machine, which comprises a rotating shaft, the pivot external fixation driving roller, the driving roller middle part is followed the annular cutting, make the driving roller be constructed into the dumbbell body that has the upper and lower extreme protruding portion, the drive roller can cooperate the driving roller side and drive the driving roller, tapping anchor clamps are installed at the pivot lower extreme, the work piece platform is located the pivot below, the liftable, during the use, only need to adorn the screw tap on tapping anchor clamps, then will tap the work piece dress on the work piece platform, make the work piece platform rise, let work piece and screw tap aim at the bonding, make the driving roller slide along with the pivot and rotate with the drive roller bonding, the tapping goes on. When the workpiece table descends, the transmission roller slides downwards along with the rotating shaft to rotate in a bonding mode with the driving roller, the rotating shaft rotates reversely, and the tapping is conducted in a withdrawing mode, so that the table drill can enable the tapping to go in, stop and withdraw freely, and the screw tap is effectively protected.

Description

A flexible tapping machine

technical field

The utility model relates to a kind of equipment in the field of hardware processing, in particular to a drilling platform capable of changing the advance and retreat of tapping threads freely, which is a flexible tapping drill.

Background technique

In actual hardware processing, tapping is usually carried out with a drilling machine. It is often encountered that during the tapping process, when the thread needs to be withdrawn, it is necessary to stop the machine, remove the tap, lower the workpiece table, and turn the tap in the direction, which is very troublesome.

SUMMARY OF THE INVENTION

The purpose of the utility model is to solve the above-mentioned deficiencies, and propose a flexible tapping drill which can not only tap the thread, but also withdraw the thread, and can control the strength well.

The technical scheme adopted by the utility model is: a flexible tapping machine, comprising:

The tapping fixture is installed at the lower end of the rotating shaft and is concentric with the rotating shaft. The upper and lower ends of the rotating shaft are connected with the upper and lower cantilevers through bearings in rolling connection, and the rotating shaft has an interference fit with the bearings fixed in the upper and lower cantilevers. , the upper cantilever and the lower cantilever are assembled on a guide rail parallel to the rotating shaft, and can only slide up and down along the guide rail. An elastic mechanism is installed on the upper or lower end of the guide rail to suspend or lift the upper cantilever or the lower cantilever. The guide rail It is fixed, a transmission roller is fixed on the rotating shaft between the upper cantilever and the lower cantilever, and the middle part of the transmission roller is cut along the ring, so that the transmission roller is configured as a dumbbell body with upper and lower end protrusions, and the upper and lower ends of the transmission roller protrude. The part is structured to form a rough surface;

The drive roller is installed on the side of the drive roller. After the drive roller moves downward or upward, its protruding portion can frictionally fit with the surface of the drive roller, so that the drive roller is driven by the drive roller to rotate in opposite directions. The drive roller is driven by the transmission mechanism;

The workpiece table is arranged under the tapping fixture, which can clamp the workpiece. The workpiece table is connected with the lifting mechanism, and can move up and down with the lifting mechanism, and is close to or away from the tapping fixture.

Further, the lifting mechanism includes: a sleeve and a column, the surface of the column is provided with a rack arranged in the height direction, the sleeve is sleeved outside the column, and is in clearance fit with the column, the workpiece table and the sleeve are side connection, a gear that meshes with the rack is installed in the sleeve, the gear is concentrically connected to the gear shaft inserted into the sleeve, the gear shaft is located outside the sleeve at one end of the turntable, and the gear shaft is connected to the cylinder wall of the sleeve. Rotationally connected, the column stands on the base parallel to the rotating shaft.

Further, the transmission mechanism is installed on the upper end of the upright column, and the driving roller is fixed on the output shaft of the transmission mechanism.

Further, the rotating shaft is changed to a clearance fit with the inner ring of the bearing, the outer ring of the bearing is an interference fit with the upper cantilever and the lower cantilever, and the end of the rotating shaft extending to the upper side of the upper cantilever is larger than the inner ring of the bearing. The nut is connected and fixed, a spring is arranged between the inner ring of the bearing and the nut, the lower end of the spring abuts the inner ring of the bearing, and the upper and lower cantilevers are changed to be connected and fixed with the guide rail.

Further, a rotating lock handle is installed on the sleeve, which can prevent the sleeve from moving up and down along the column after being rotated.

Further, the protruding parts at the upper and lower ends of the drive roller are configured in a frustum shape, the reduced end of the protruding part at the upper end of the drive roller faces downward, and the reduced end of the protruding part at the lower end of the drive roller faces upward, and the drive roller is in the shape of a frustum, which The reduced end faces between the upper and lower ends of the drive roller.

The beneficial effect of the utility model is that the tapping can be advanced, stopped and retreated freely.

Description of drawings

Fig. 1 is the structural representation of Embodiment 1 of the present utility model;

Fig. 2 is the partial cross-sectional schematic diagram of the gap adjustment of the utility model;

3 is a schematic structural diagram of Embodiment 2 of the present utility model;

In the picture: 1. Motor, 2. Belt, 3. L-shaped motor support, 4. Switch, 5. Upper column sleeve, 6. Rotating lock handle, 7. Pulley, 8. Transmission mechanism case, 9. Output shaft, 10, drive roller, 11, spring, 12, nut, 13, shaft, 14, drive roller, 151, upper cantilever, 152, lower cantilever, 153, guide rail, 16, fixture, 17, workpiece table, 18, base, 19, turntable, 20, column, 21, rotary lock handle, 22, sleeve, 23, rack, 24, inner ring, 25, outer ring, 26, bearing.

Detailed ways

Example 1

As shown in Figure 1, a flexible tapping machine includes five components: a bracket, a motor, a transmission system, a clutch system and a workbench. The motor 1 is mounted on the L-shaped motor support 3, and the L-shaped support 3 The vertical edge is fixed on the upper column sleeve 5 . The transmission system and the clutch system are integrated with the upper sleeve column 5. The sleeve 20 is in clearance fit with the column 20 and is sleeved outside the column 20. The surface of the column 20 is provided with a rack 23 arranged in the height direction. The column 20 stands on the base 18. The workpiece table 17 is connected with the side surface of the sleeve 22, which can hold the workpiece. The sleeve 22 is equipped with a gear that meshes with the rack 23, and the gear is concentrically connected to the gear shaft inserted into the sleeve 22, and the gear shaft is located outside the sleeve 22. The turntable 19 is fitted with one end of the gear shaft, and the gear shaft is rotatably connected to the cylinder wall of the sleeve 22. The rotary lock handle 21 is installed on the sleeve 22, which can prevent the sleeve 22 from moving up and down along the column 20 after rotation. The motor 1 drives the output shaft 9 located in the transmission mechanism case 8 through the belt 2 and the pulley 7. The left end of the output shaft 9 extends out of the transmission mechanism case 8 and is installed with a frustoconical drive roller 10. The transmission mechanism case on the left and right sides of the output shaft 9 8. The outer fixed guide rail 153, the upper cantilever 151 and the lower cantilever 152 are assembled on the guide rail 153 parallel to the column 20, and can only slide up and down along the guide rail 153, for example, the guide rail 153 passes through the guide formed on the upper cantilever 151 and the lower cantilever 152. The upper or lower end of the guide rail 153 is provided with an elastic mechanism to suspend or lift the upper cantilever 151 or the lower cantilever 152. The upper cantilever 151 and the lower cantilever 152 are provided with a bearing 26, and the upper and lower ends of the rotating shaft 13 are connected to the upper cantilever 151 and The lower cantilever 152 is connected by rolling through the bearing 26, and the rotating shaft 13 is in an interference fit with the bearing 26 fixed in the upper cantilever 151 and the lower cantilever 152. The tapping clamp 16 is installed on the lower end of the rotating shaft 13 and is concentric with the rotating shaft 13. The upper cantilever 151 The transmission roller 14 is fixed on the rotating shaft 13 between the lower cantilever arm 152 and the transmission roller 14, and the middle of the transmission roller 14 is cut along the ring, so that the transmission roller 14 is configured as a dumbbell body with upper and lower end protrusions, and the upper and lower end protrusions of the transmission roller 14 are structured A rough surface is formed; the driving roller 10 is installed on the side of the driving roller 14. After the driving roller 14 moves downward or upward, its protrusion can frictionally fit with the surface of the driving roller 10, so that the driving roller 14 is driven by the driving roller 10 toward the driving roller 10. Rotating in the opposite direction, the driving roller 10 is driven by the above-mentioned transmission mechanism; the workpiece table 17 is arranged under the tapping fixture 16, and can move up and down with the lifting mechanism composed of a sleeve, a column, a rack, a turntable and a gear, and is connected with the tapping The clamps 16 are approached or moved away.

In FIG. 1, the protruding parts of the upper and lower ends of the transmission roller 14 are configured in a frustum shape, the reduced end of the protruding part at the upper end of the transmission roller 14 faces downward, the reduced end of the protruding part at the lower end of the transmission roller 14 faces upward, and the driving roller 10 is in the shape of a frustum, Its reduced end faces between the upper and lower ends of the transmission roller 14 .

As shown in Fig. 1, the elastic mechanism includes a nut 12 and a spring 11, the nut 12 is located at the lower end of the guide rail, the spring 11 is located between the nut 12 and the lower cantilever 152, the spring 11 is compressed, and the elastic force of the spring 11 is just in line with the transmission roller 14, the rotating shaft 13, and the upper and lower cantilevers. The weight is balanced so that the protrusions at the upper and lower ends of the drive roller 14 form a gap with the drive roller 10 .

When in use, just install the tap on the tapping fixture 16, and then install the workpiece to be tapped on the workpiece table 17, first loosen the rotary lock handle 21, and turn the turntable 19 to raise the workpiece table 17, so that the workpiece and the tap are aligned. Then press the switch 4 manually to start the motor 1. At this time, the tapping fixture 16 rotates, and the turntable 19 continues to rotate, so that the workpiece table rises. At this time, the driving roller 10 and the lower end protrusion of the driving roller 14 are bonded and rotated, and the tapping conduct.

When the turntable 19 is rotated in the reverse direction, the workpiece table 17 is lowered, the workpiece pulls the tap, and drives the rotating shaft 13 and the upper and lower cantilevers to slide down the compression spring 11 along the guide rail 153 together. , the tapping fixture 16 is rotated in the reverse direction, and the thread is withdrawn until the tap exits the thread hole on the workpiece, and the rotating shaft 13 and the upper and lower cantilevers slide up and reset along the guide rail 153 together until the upper and lower protruding parts of the driving roller 10 and the driving roller 14 are no longer there. touch.

In this way, the bench drill can make the tapping advance, stop and retreat freely, and effectively protect the tap.

Example 2

As shown in Figure 2 and Figure 3, a flexible tapping machine includes: a bracket, a motor, a transmission system, a clutch system and a workbench. Five components, the motor 1 is mounted on the L-shaped motor support 3, and the L-shaped support 3. The vertical edge is fixed on the upper column sleeve 5. The transmission system and the clutch system are integrated with the upper sleeve column 5. The sleeve 20 is in clearance fit with the column 20 and is sleeved outside the column 20. The surface of the column 20 is provided with a rack 23 arranged in the height direction. The column 20 stands on the base 18. The workpiece table 17 is connected with the side surface of the sleeve 22, which can hold the workpiece. The sleeve 22 is equipped with a gear that meshes with the rack 23, and the gear is concentrically connected to the gear shaft inserted into the sleeve 22, and the gear shaft is located outside the sleeve 22. The turntable 19 is fitted with one end of the gear shaft, and the gear shaft is rotatably connected to the cylinder wall of the sleeve 22. The rotary lock handle 21 is installed on the sleeve 22, which can prevent the sleeve 22 from moving up and down along the column 20 after rotation. The motor 1 drives the output shaft 9 located in the transmission mechanism case 8 through the belt 2 and the pulley 7. The left end of the output shaft 9 extends out of the transmission mechanism case 8 and is installed with a frustoconical drive roller 10. The transmission mechanism case on the left and right sides of the output shaft 9 8. The external fixed guide rail 153, the upper cantilever 151 and the lower cantilever 152 are assembled on the guide rail 153 parallel to the column 20, and are fixedly connected with the guide rail 153. The upper cantilever 151 and the lower cantilever 152 are provided with bearings 26, and the upper and lower ends of the rotating shaft 13 are connected to the upper and lower ends of the shaft 13. The cantilever 151 and the lower cantilever 152 are connected by rolling through the bearing 26, and the rotating shaft 13 is in clearance fit with the inner ring 23 of the bearing 26 fixed in the upper cantilever 151 and the lower cantilever 152, and the outer ring 25 of the bearing 26 passes through the upper cantilever 151 and the lower cantilever 152. The end of the rotating shaft 13 extending to the upper side of the upper cantilever 151 is connected and fixed with the nut 12 whose size is larger than the inner ring 24 of the bearing 26. A spring 11 is arranged between the inner ring 24 of the bearing 26 and the nut 12, and the lower end of the spring 11 abuts In the inner ring 24 of the bearing 26, the tapping fixture 16 is installed on the lower end of the rotating shaft 13, and is concentric with the rotating shaft 13. The rotating shaft 13 between the upper cantilever 151 and the lower cantilever 152 is fixed on the rotating shaft 14. Cutting, so that the transmission roller 14 is configured as a dumbbell body with upper and lower end protrusions, and the upper and lower end protrusions of the transmission roller 14 are configured to form a rough surface; the driving roller 10 is installed on the side of the transmission roller 14, the transmission roller 14 downward or After moving upward, its protruding part can frictionally fit with the surface of the driving roller 10, so that the driving roller 14 is driven by the driving roller 10 to rotate in the opposite direction, and the driving roller 10 is driven by the above-mentioned transmission mechanism; the workpiece table 17 is arranged on the tapping jig. Below the 16, it can move up and down with the lifting mechanism composed of the sleeve, the column, the rack, the turntable, and the gear, so as to be close to or away from the tapping fixture 16.

In FIG. 3, the protruding parts of the upper and lower ends of the transmission roller 14 are constructed in a frustum shape, the reduced end of the protruding part at the upper end of the transmission roller 14 faces downward, the reduced end of the protruding part at the lower end of the transmission roller 14 faces upward, and the driving roller 10 is in the shape of a frustum, Its reduced end faces between the upper and lower ends of the transmission roller 14 .

2 and 3 , the spring 11 is compressed, and the elastic force of the spring 11 just balances the weight of the drive roller 14 and the shaft 13 , so that the protrusions at the upper and lower ends of the drive roller 14 form a gap with the drive roller 10 .

When in use, just install the tap on the tapping fixture 16, and then install the workpiece to be tapped on the workpiece table 17, first loosen the rotary lock handle 21, and turn the turntable 19 to raise the workpiece table 17, so that the workpiece and the tap are aligned. Then press the switch 4 manually to start the motor 1. At this time, the tapping fixture 16 rotates, and the turntable 19 continues to rotate to make the workpiece table rise. At this time, the rotating shaft 13 slides upward, and the driving roller 10 and the lower end protrusion of the transmission roller 14 are glued. Turning together, tapping is performed, and the spring 11 rotates together with the inner ring of the bearing 26, the rotating shaft 13, and the nut 12.

When the turntable 19 is rotated in the reverse direction, the workpiece table 17 is lowered, the workpiece pulls the tap, and drives the rotating shaft 13 to slide down the compression spring 11 along the inner ring of the bearing 26. At this time, the driving roller 10 and the upper end protrusion of the driving roller 14 are bonded and rotated, so that the The tapping fixture 16 rotates in the reverse direction, and the thread is withdrawn until the tap exits the thread hole on the workpiece. The rotating shaft 13 and the drive roller 14 slide up and reset along the inner ring 24 of the bearing 26 together to the upper and lower ends of the drive roller 10 and the drive roller 14. The protrusions are not touching.

In this way, the bench drill can make the tapping advance, stop and retreat freely, and effectively protect the tap.

Claims (6)

1. A flexible tapping machine comprising:

a tapping clamp (16) which is arranged at the lower end of the rotating shaft (13) and is concentric with the rotating shaft (13), the upper end and the lower end of the rotating shaft (13) are in rolling connection with the upper cantilever (151) and the lower cantilever (152) through bearings (26), the rotating shaft (13) is in interference fit with the bearings (26) fixed in the upper cantilever (151) and the lower cantilever (152), the upper cantilever (151) and the lower cantilever (152) are assembled on a guide rail (153) which is parallel to the rotating shaft (13) and can only slide up and down along the guide rail (153), the upper end or the lower end of the guide rail (153) is provided with an elastic mechanism to suspend or lift the upper cantilever (151) or the lower cantilever (152), the guide rail (153) is fixed, a driving roller (14) is fixed on the rotating shaft (13) between the upper cantilever (151) and the lower cantilever (152), the middle part of the driving roller (14) is cut along a ring shape, so that the driving roller (14) is constructed into a dumbbell body with an upper end protrusion part and a lower end protrusion part, the protruding parts of the upper and lower ends of the driving roller (14) are configured to form a rough surface;

the driving roller (10) is arranged on the side surface of the driving roller (14), after the driving roller (14) moves downwards or upwards, the protruding part of the driving roller can be in friction fit with the surface of the driving roller (10), so that the driving roller (14) is driven by the driving roller (10) to rotate in opposite directions, and the driving roller (10) is driven by the transmission mechanism;

the workpiece table (17) is arranged below the tapping clamp (16) and can clamp a workpiece, and the workpiece table (17) is connected with the lifting mechanism and can move up and down along with the lifting mechanism and is close to or far away from the tapping clamp (16).

2. The flexible threading machine of claim 1 wherein the elevating mechanism comprises: sleeve (22), stand (20), rack (23) that the direction of height arranged are followed to stand (20) surface setting, sleeve (22) cover is outside stand (20) to with stand (20) clearance fit, work piece platform (17) are connected with the side of sleeve (22), install in sleeve (22) with the gear of rack (23) meshing, the gear is connected with the gear shaft that inserts in sleeve (22) is concentric, and the gear shaft is located one end suit carousel (19) outside sleeve (22), and the gear shaft rotates with the section of thick bamboo wall of sleeve (22) to be connected, stand (20) are on a parallel with pivot (13) stand on base (18).

3. The flexible threading machine according to claim 2, characterized in that the transmission is mounted on the upper end of the upright (20), the drive roller (10) being fixed to the output shaft (9) of the transmission.

4. The flexible tapping machine according to claim 3, wherein the rotating shaft (13) is instead clearance fitted with the inner ring (24) of the bearing (26), the outer ring (25) of the bearing (26) is interference fitted with the upper cantilever (151) and the lower cantilever (152), one end of the rotating shaft (13) extending to the upper side of the upper cantilever (151) is fixedly connected with a nut (12) having a size larger than that of the inner ring (24) of the bearing (26), a spring (11) is arranged between the inner ring (24) of the bearing (26) and the nut (12), the lower end of the spring (11) abuts against the inner ring (24) of the bearing (26), and the upper cantilever (151) and the lower cantilever (152) are instead fixedly connected with the guide rail (153).

5. The flexible type threading machine according to claim 4 characterized in that the sleeve (22) is provided with a rotary lock handle (21) which prevents the sleeve (22) from moving up and down along the upright (20) after rotation.

6. The flexible type threading machine according to claim 5, wherein the protrusions of the upper and lower ends of the driving roller (14) are formed in a frustum shape, the reduced end of the protrusion of the upper end of the driving roller (14) is directed downward, the reduced end of the protrusion of the lower end of the driving roller (14) is directed upward, and the driving roller (10) is formed in a frustum shape with the reduced end thereof directed between the upper and lower ends of the driving roller (14).

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