CN213053129U - Quick-change screw tap type tapping device - Google Patents

Abstract

The utility model discloses a quick change screw tap formula chasing bar, including the screw tap body, the screw tap pole, the screw tap fixture block, a plurality of roots compress tightly the spout, the spanner body, the screw tap card hole, the screw tap slide opening, the fixed block, the pull rod hole, the pull rod and set up a plurality of screw hole on the spanner body, the quantity of screw hole equals and the one-to-one with the quantity that compresses tightly the spout, all be equipped with a bolt in every screw hole, be threaded connection between bolt and the screw hole, the interior half section of bolt is equipped with a marble hole, the downthehole supporting spring that is equipped with of marble, supporting spring's the inner is connected with a marble, supporting spring's outer end links to each other with the bottom surface in marble hole, the screw tap slide opening is arranged in to the interior half section of marble. The utility model discloses the beneficial effect who gains is: (1) the structure is simple; (2) can accomplish the change of screw tap fast, and then improve the work efficiency of tapping greatly.

Description

Quick-change screw tap type tapping device

Technical Field

The utility model relates to a chasing bar, especially a quick change screw tap formula chasing bar.

Background

At present, in the machining field, the process of manufacture of screw hole is generally with drilling tool drilling on spare part, drilling finishes the back, be fixed in the screw tap on the spanner, utilize the spanner to drive the screw tap in downthehole rotation, thereby reach the purpose of tapping, also exactly at downthehole internal thread that produces, however, at the in-process of company, need change different screw taps according to the diameter of screw hole and the type of screw thread, consequently, the change frequency of screw tap is higher, and current spanner is through screwing up or loosening the mode of wrenching bar and change the screw tap, the change time is longer, can not satisfy screw tap quick replacement's demand.

Disclosure of Invention

The utility model discloses the problem that solves is: the quick-change screw tap type tapping device is simple in structure and high in screw tap changing speed, and therefore tapping work efficiency is improved.

In order to solve the technical problem, the utility model discloses a quick change screw tap formula chasing bar, include:

a tap body;

the screw tap rod is fixed at the top of the screw tap body;

the screw tap fixture block is fixed at the top of the screw tap rod;

the pressing chutes are uniformly distributed on the circumferential surface of the screw conical rod;

the wrench comprises a wrench body, wherein a screw tap clamping hole and a screw tap sliding hole are formed in the wrench body, the screw tap clamping hole is located right above the screw tap sliding hole, the screw tap clamping hole is matched with a screw tap clamping block, and the screw tap sliding hole is matched with a screw tap rod;

the fixing block is fixed at the top of the wrench body, a wrench rod hole is formed in the fixing block, the central axis of the wrench rod hole is perpendicular to the central axis of the screw tap sliding hole, and a wrench rod is inserted into the wrench rod hole;

and set up a plurality of screw hole on the spanner body, the quantity of screw hole and the quantity that compresses tightly the spout are equal and the one-to-one, all are equipped with a bolt in every screw hole, be threaded connection between bolt and the screw hole, the first half section of bolt is equipped with a marble hole, the downthehole supporting spring that is equipped with of marble, supporting spring's the inner is connected with a marble, supporting spring's outer end links to each other with the bottom surface in marble hole, the screw tap slide opening is arranged in to first half section of marble, the marble with compress tightly the spout phase-match.

Further, the utility model discloses a quick change screw tap formula chasing bar, the degree of depth that compresses tightly the spout is 0-5mm, the degree of depth top-down that compresses tightly the spout reduces gradually.

Further, the utility model discloses a quick change screw tap formula chasing bar, be equipped with a regular hexagon's regulation hole on the outer terminal surface of bolt.

The utility model discloses the beneficial effect who gains is: (1) the structure is simple; (2) in normal times, a tap clamping block at the top of the tap rod is inserted into a tap clamping hole in the wrench body, the inner half part of the marble is just pressed into the pressing chute under the action of the elastic force of the pressing spring, and the tap rod is pressed tightly by the elastic force of the pressing spring, so that the tap rod and the tap body are prevented from falling off from the wrench body under the action of self gravity from the wrench body; when the screw tap needs to be replaced, the screw tap body is pulled to move downwards, the screw tap rod also slides downwards under the driving of the screw tap body, the marble and the pressing chute slide relatively along the downward movement of the screw tap rod, namely the pressing chute also moves downwards along the marble, and the depth of the pressing chute is gradually reduced from top to bottom, so that the depth of the pressing chute attached to the marble is gradually increased along with the continuous downward movement of the screw tap rod and the pressing chute, the marble also slightly moves inwards, the elasticity of the pressing spring on the marble is reduced along with the reduction of the elasticity of the pressing spring on the marble, and the pressure of the marble on the pressing chute is further reduced gradually, therefore, the screw tap body and the screw tap rod are easily pulled out from the wrench body, then the screw tap rod of the screw tap to be replaced is inserted into the wrench sliding hole, and the position of the marble is ensured to correspond to the pressing chute on the screw tap rod to be replaced, then during screw tap slide opening and screw tap card hole are filled in with the screw tap pole with power, along with the continuous slip-in of the screw tap pole of the screw tap of waiting to change, the degree of depth that compresses tightly the spout that contacts with the marble on this screw tap pole reduces gradually, marble and the pressure grow gradually that compresses tightly between the spout, when the screw tap fixture block complete card of this screw tap pole top is gone into in the screw tap card hole, marble and the elasticity that compresses tightly between the spout are in the biggest state, thereby can firmly compress tightly this screw tap of changing, avoid it to drop from the spanner body. Compare with current spanner, the utility model discloses a tapping device can accomplish the change of screw tap fast, and then improves the work efficiency of tapping greatly.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a left side view of the present invention.

Fig. 3 is an enlarged view at a in fig. 1.

Fig. 4 is an enlarged view at B in fig. 2.

In the figure: 1. a screw tap body, 2, a pressing chute, 3, a screw tap rod, 4, a screw tap fixture block, 5 and a wrench body,

6. a screw tap clamping hole 7, a screw tap sliding hole 8, a pull rod 9, a fixing block 10, a pull rod hole 11 and a bolt,

12. adjusting holes 13, marble holes 14, compression springs 15 and marbles.

Detailed Description

As shown in fig. 1, 2, 3 and 4, the tap quick-change tapping device includes a tap body 1, a tap rod 3 fixed to the top of the tap body 1, and a tap fixture 4 fixed to the top of the tap rod 3, and in fact, the tap body 1, the tap rod 3 and the tap fixture 4 are of an integral structure, and the three components together form a tap. In addition, a plurality of pressing chutes 2 are evenly distributed on the circumferential surface of the screw tap rod 3,

the quick-change screw tap type tapping device further comprises a wrench body 5, a screw tap clamping hole 6 and a screw tap sliding hole 7 are formed in the wrench body 5, the screw tap clamping hole 6 is located right above the screw tap sliding hole 7, the screw tap clamping hole 6 is matched with the screw tap clamping block 4, and the screw tap sliding hole 7 is matched with the screw tap rod 3.

The tap is inserted into the wrench body 5, the tap fixture block 4 just enters the tap clamping hole 6, the tap rod 3 just enters the tap sliding hole 7, the degree of freedom of the whole tap in the circumferential direction can be locked through the matching of the tap fixture block 4 and the tap clamping hole 6, and the tap is prevented from rotating along the central axis of the tap.

The top of the wrench body 5 is provided with a fixing block 9, the fixing block 9 is provided with a wrench rod hole 10, the central axis of the wrench rod hole 10 is perpendicular to the central axis of the screw tap sliding hole 7, and a wrench rod 8 is inserted into the wrench rod hole 10.

The wrench body 5 and the tap are driven to rotate by rotating the wrench rod 8, and the tap body 1 can perform tapping work along with the rotation of the tap.

Still be equipped with the screw hole on wrench body 5, the quantity of screw hole equals and the one-to-one with the quantity that compresses tightly spout 2, every threaded hole all is equipped with a bolt 11, be threaded connection between bolt 11 and the screw hole, the interior half section of bolt 11 is equipped with a marble hole 13, be equipped with a supporting spring 14 in the marble hole 13, supporting spring 14's the inner is connected with a marble 15, supporting spring 14's outer end links to each other with marble hole 13's bottom surface, screw tap slide opening 7 is arranged in to the interior half section of marble 15, marble 15 with compress tightly spout 2 phase-match.

According to the quick-change tap type tapping device, in normal times, the tap clamping block 4 at the top of the tap rod 3 is inserted into the tap clamping hole 6 in the wrench body 5, the inner half part of the marble 15 is just pressed into the pressing chute 2 under the action of the elastic force of the pressing spring 14, the tap rod 3 is pressed tightly by the elastic force of the pressing spring 14, and the tap rod 3 and the tap body 1 are prevented from falling off from the wrench body under the action of self gravity from the wrench body 5; when the screw tap needs to be replaced, the screw tap body 1 is pulled to move downwards, the screw tap rod 3 also slides downwards under the driving of the screw tap body 1, along with the downward movement of the screw tap rod 3, the marble 15 and the pressing chute 2 slide relatively, namely, the pressing chute 2 also moves downwards along the marble 15, because the depth of the pressing chute 2 is gradually reduced from top to bottom, along with the continuous downward movement of the screw tap rod 3 and the pressing chute 2, the depth of the pressing chute 2 attached to the marble 15 is gradually increased, the marble 15 also slightly moves inwards, the elasticity of the pressing spring 14 to the marble 15 is also reduced, and further the pressure of the marble 15 to the pressing chute 2 is gradually reduced, so that the screw tap body 1 and the screw tap rod 3 are easily pulled out of the wrench body 5, and then the screw tap rod 3 of the screw tap to be replaced is inserted into the wrench sliding hole 7, and ensure that the position of marble 15 corresponds with the tap pole 3 on compressing tightly the spout 2 to be changed, then force with the tap pole 3 and pack into tap slide opening 7 and tap card hole 6, along with the continuous slip-in of the tap pole 3 of the tap to be changed, the degree of depth that compresses tightly the spout 2 that contacts with marble 15 on this tap pole 3 reduces gradually, the pressure between marble 15 and the compressing tightly spout 2 grow gradually, when the tap fixture block 4 at the top of this tap pole 3 is blocked completely in the tap card hole 6, the elasticity between marble 15 and the compressing tightly spout 2 is in the biggest state, thereby can firmly compress tightly this tap of changing, avoid it to drop from spanner body 5. Compare with current spanner, the utility model discloses a tapping device can accomplish the change of screw tap fast, and then improves the work efficiency of tapping greatly.

In the quick-change tap type tapping device of the embodiment, the depth of the pressing chute 2 is 0-5mm, and the depth of the pressing chute 2 is gradually reduced from top to bottom.

According to the quick-change tap type tapping device, the regular hexagonal adjusting hole 12 is formed in the outer end face of the bolt 11, the inner hexagonal wrench is inserted into the adjusting hole 12, the position of the bolt 11 is convenient to adjust, the pressure of the marble 15 on the compression chute 2 is changed, and the pressure is moderate.

Claims (3)

1. A quick-change tap threading device, comprising:

a tap body (1);

the screw tap rod (3) is fixed at the top of the screw tap body (1);

the screw tap fixture block (4) is fixed at the top of the screw tap rod (3);

the pressing chutes (2) are uniformly distributed on the circumferential surface of the screw conical rod (3);

the wrench comprises a wrench body (5), wherein a screw tap clamping hole (6) and a screw tap sliding hole (7) are formed in the wrench body (5), the screw tap clamping hole (6) is located right above the screw tap sliding hole (7), the screw tap clamping hole (6) is matched with a screw tap clamping block (4), and the screw tap sliding hole (7) is matched with a screw tap rod (3);

the fixing block (9) is fixed to the top of the wrench body (5), a wrench rod hole (10) is formed in the fixing block (9), the central axis of the wrench rod hole (10) is perpendicular to the central axis of the screw tap sliding hole (7), and a wrench rod (8) is inserted into the wrench rod hole (10);

and set up a plurality of screw hole on spanner body (5), the quantity of screw hole and the quantity that compresses tightly spout (2) are equal and the one-to-one, all are equipped with one bolt (11) in every screw hole, be threaded connection between bolt (11) and the screw hole, the interior half section of bolt (11) is equipped with one and plays pearl hole (13), be equipped with a supporting spring (14) in play pearl hole (13), the inner of supporting spring (14) is connected with one marble (15), the outer end of supporting spring (14) links to each other with the bottom surface in play pearl hole (13), screw tap slide opening (7) are arranged in to the interior half of marble (15), marble (15) with compress tightly spout (2) phase-match.

2. The quick-change tap threading device according to claim 1, wherein: the depth of the pressing chute (2) is 0-5mm, and the depth of the pressing chute (2) is gradually reduced from top to bottom.

3. The quick-change tap threading device according to claim 2, wherein: the outer end face of the bolt (11) is provided with a regular hexagonal adjusting hole (12).

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