CN214081765U - Automatic switching and fixing structure for hollow tapping tool bit - Google Patents
Automatic switching and fixing structure for hollow tapping tool bit Download PDFInfo
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- CN214081765U CN214081765U CN202023096623.3U CN202023096623U CN214081765U CN 214081765 U CN214081765 U CN 214081765U CN 202023096623 U CN202023096623 U CN 202023096623U CN 214081765 U CN214081765 U CN 214081765U
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- connecting sleeve
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- connecting plate
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Abstract
The utility model relates to a hollow body trompil tool bit automatic switch-over fixed knot constructs, including connecting plate, adapter sleeve, swivel sleeve and ball. The connecting plate is fixedly connected with the connecting sleeve, and a plurality of balls are symmetrically arranged on the side wall of the connecting sleeve; the rotary sleeve is sleeved on the connecting sleeve, and the connecting sleeve moves axially and rotationally relative to the rotary sleeve; a reset device is arranged between the connecting plate and the rotary sleeve; a positioning pin is arranged on the connecting sleeve and movably clamped and matched with the rotating sleeve; the tapping cutter head is in clamping fit with the connecting sleeve through a ball, and a transmission spline in movable clamping fit with the connecting sleeve is arranged on the tapping cutter head. This technique is through optimizing current hollow body trompil tool bit fixed knot and construct, has changed the locate mode of trompil tool bit and has realized automatic rapid stabilization tool changing function, has solved artifical switching simultaneously, and degree of automation is low, the cycle length to and trompil state unstability problem around the trompil tool bit switches. The early debugging cost of the product and the rejection rate of later production are reduced.
Description
Technical Field
The utility model belongs to the technical field of plastics drilling machine, especially indicate a hollow body trompil tool bit switches fixed knot and constructs.
Background
Generally, an automotive plastic fuel tank is provided with a fuel filler opening for filling the fuel tank, in addition to a fuel supply opening for supplying fuel to an engine and a vent opening for maintaining pressure balance inside the fuel tank. At present, the main forms of a fuel filler on a plastic fuel tank are two, wherein one form is that the fuel filler is directly taken out in the blow molding process of the fuel tank; the other method is to form a fuel filler hole on the wall of the fuel tank through a subsequent punching process after the fuel tank is molded. The form of the oil filling port is selected mainly according to the arrangement requirement of the main engine plant on the fuel system. If the latter method is selected, and different versions have different size requirements, the method puts higher requirements on the opening switching function of the plastic fuel tank.
The prior art is a technology for producing an oil filler opening through the hole opening of the tank wall of a fuel tank in the subsequent punching process, and needs to use one set of hole opening unit and two sets of tool bits with different hole opening sizes for meeting different size requirements. The fuel tank is well fixed at a processing position, the whole perforating unit moves forward to a perforating hole position, the material carrying mechanism moves forward to fix a fuel tank cutting material block, the perforating tool bit rotates and moves forward, the whole body returns to the original position after perforating is completed, and meanwhile, the unloading work is completed. When the opening size needs to be switched, the opening tool bit fixing structures need to be completely disassembled, and after the opening tool bit is replaced, the fixing structures are completely installed in place.
Through above-mentioned scheme, the different tool bits of manual switching, degree of automation is low, and the cycle length easily causes trompil tool bit to switch the front and back trompil state unstability, has to switch the mistake and leads to the product to scrap or even after-sales risk.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a hollow body trompil tool bit automatic switch-over fixed knot constructs to solve artifical switching, degree of automation is low, the cycle length, and trompil state unstability problem around the trompil tool bit switches.
The utility model discloses a realize through following technical scheme:
an automatic switching and fixing structure for a hollow hole cutter head comprises a connecting plate, a connecting sleeve, a rotating sleeve and balls;
the connecting plate is fixedly connected with the connecting sleeve, and a plurality of balls are symmetrically arranged on the side wall of the connecting sleeve;
the rotary sleeve is sleeved on the connecting sleeve, and the connecting sleeve moves axially and rotationally relative to the rotary sleeve;
a resetting device is arranged between the connecting plate and the rotating sleeve;
the tapping cutter head is matched with the connecting sleeve in a clamping mode through a ball, a transmission spline is arranged on the tapping cutter head, and the transmission spline is matched with the connecting sleeve in a movable clamping mode.
Preferably, the number of the balls is 8 or more than 8.
Preferably, the reset device comprises a reset spring, a supporting block and a reset rod, the supporting block is arranged on the rotating sleeve, the reset rod penetrates through the connecting plate and then is fixedly connected with the supporting block, and the reset spring is sleeved on the reset rod.
Preferably, the distance between the outer side surface of the connecting sleeve corresponding to the ball and the inner side surface of the rotating sleeve is unequal.
Preferably, the pneumatic control valve further comprises an air cylinder and a servo motor, wherein the servo motor is arranged on a valve rod of the air cylinder, and an output shaft of the servo motor is connected with the connecting plate.
Preferably, a circle of groove is arranged on the outer side surface of the hole-opening tool bit and is used for being matched with the rolling ball.
The utility model has the advantages that:
this technical scheme has changed the locate mode of trompil tool bit and has realized automatic rapid stabilization tool changing function through optimizing current hollow body trompil tool bit fixed knot and construct, has solved artifical switching simultaneously, and degree of automation is low, the cycle length to and trompil state unstability problem around the trompil tool bit switches. The cost of debugging in the early stage of the product and the rejection rate of later-stage production are reduced, and the product recalling caused by the outflow of unqualified products produced in the material supply stage is also prevented.
Drawings
FIG. 1 is an assembly view of the automatic switching structure of the tapping tool bit of the present invention;
FIG. 2 is an assembly view of the punching head of the present invention;
FIG. 3 is a view of the base assembly of the fixation structure;
FIG. 4 is an in situ axial cross-sectional view of the base of the fixed structure;
FIG. 5 is a top cross-sectional view of the base of the mounting structure;
FIG. 6 is a diagrammatic view of a hole-opening bit secured in place;
FIG. 7 is a schematic view of the location of the locating pin after the tapping tool bit is fixed in place;
FIG. 8 is a schematic view of the hole-forming tool bit rotated open into position;
FIG. 9 is a schematic view of the location of the locating pin with the hole-forming bit rotated open into position;
FIG. 10 is a schematic view of the apertured tool tip removed from position;
FIG. 11 is a schematic view of the location of the locating pin with the hole cutting head removed;
fig. 12 is a longitudinal cross-sectional view of a hole-forming tool tip.
Description of the reference numerals
1. Connecting rod, 2, transmission spline, 3, locating pin, 4, connecting plate, 5, adapter sleeve, 6, ball, 7, swivel housing, 8, supporting shoe, 9, reset spring, 10, release link, 11, trompil tool bit, 12, recess.
Detailed Description
The technical solutions of the present invention are described in detail below by way of examples, which are only exemplary and can be used only for explaining and explaining the technical solutions of the present invention, but should not be construed as limiting the technical solutions of the present invention.
As shown in fig. 1 to 12, the present application provides an automatic switching and fixing structure for a hollow body tapping tool bit, which comprises a connecting plate 4, a connecting sleeve 5, a rotating sleeve 7, a ball 6, a cylinder and a servo motor. The connecting sleeve 5 has the functions of guiding a cutter and transmitting torque, and the rotating sleeve 7 is matched with the positioning pin 3 to realize the function of keeping the cutter changing opening state.
The servo motor is arranged on the valve rod of the air cylinder, the servo motor moves along with the extension or contraction of the valve rod of the air cylinder, an output shaft of the servo motor is connected with the connecting rod 1, and the connecting rod 1 is connected with the connecting plate 4. The connecting plate 4 is fixedly connected with the connecting sleeve 5, and a plurality of balls 6 are symmetrically arranged on the side wall of the connecting sleeve; the rotary sleeve is sleeved on the connecting sleeve, and the connecting sleeve moves axially and rotationally relative to the rotary sleeve. The connecting sleeve and the connecting plate are driven by the servo motor to rotate.
A resetting device is arranged between the connecting plate and the rotating sleeve; the reset device comprises a reset spring 9, a supporting block 8 and a reset rod 10, the supporting block is arranged on the rotating sleeve, the reset rod penetrates through the connecting plate and then is fixedly connected with the supporting block, and the reset spring is sleeved on the reset rod.
In the technical scheme of this application, the diameter of ball is greater than the diameter of adapter sleeve lateral wall ball mounting hole. The tapping cutter head 11 is matched with the connecting sleeve 5 in a clamping mode through a ball 8, and a positioning pin 3 is arranged on the tapping cutter head and matched with the connecting sleeve in a movable clamping mode.
In the technical scheme of this application, the ball is 8 or more than 8 the outside surface of trompil tool bit 11 is provided with round recess 12, with the spin cooperation. With the distance inequality between the adapter sleeve lateral surface that the ball corresponds and the swivel housing medial surface, when the adapter sleeve moves forward under the drive of cylinder like this, the distance between adapter sleeve lateral surface and the swivel housing medial surface increases, and the ball removes to the swivel housing direction, loses the joint effect to the trompil tool bit, and the trompil tool bit breaks away from with the adapter sleeve under gravity, accomplishes and unloads the sword.
And a new punching cutter head moves in, the air cylinder drives the connecting sleeve to move forward to a cutter changing position, the connecting sleeve rotates to a closing position (the positioning pin is opened), the connecting sleeve retreats, and cutter changing is completed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. An automatic switching and fixing structure for a hollow hole cutter head is characterized by comprising a connecting plate, a connecting sleeve, a rotating sleeve and balls;
the connecting plate is fixedly connected with the connecting sleeve, and a plurality of balls are symmetrically arranged on the side wall of the connecting sleeve;
the rotary sleeve is sleeved on the connecting sleeve, and the connecting sleeve moves axially and rotationally relative to the rotary sleeve;
a resetting device is arranged between the connecting plate and the rotating sleeve;
the tapping cutter head is matched with the connecting sleeve in a clamping mode through a ball, a transmission spline is arranged on the tapping cutter head, and the transmission spline is matched with the connecting sleeve in a movable clamping mode.
2. The hollow body tapping tool bit auto-switching fixture of claim 1 wherein the number of balls is 8 or more than 8.
3. The hollow body tapping tool bit automatic switching fixing structure of claim 1, wherein the reset device comprises a reset spring, a support block and a reset rod, the support block is arranged on the rotating sleeve, the reset rod penetrates through the connecting plate and then is fixedly connected with the support block, and the reset spring is sleeved on the reset rod.
4. The hollow body opening tool bit automatic switching fixing structure according to claim 1, wherein distances between an outer side surface of the connecting sleeve corresponding to the balls and an inner side surface of the rotating sleeve are not equal.
5. The hollow body opening tool bit automatic switching fixing structure is characterized by further comprising an air cylinder and a servo motor, wherein the servo motor is arranged on a valve rod of the air cylinder, and an output shaft of the servo motor is connected with the connecting plate.
6. The hollow body piercing tool tip automatic switching fixture of claim 1 wherein a ring of grooves are provided on the outside surface of the piercing tool tip for engagement with the ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023096623.3U CN214081765U (en) | 2020-12-21 | 2020-12-21 | Automatic switching and fixing structure for hollow tapping tool bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023096623.3U CN214081765U (en) | 2020-12-21 | 2020-12-21 | Automatic switching and fixing structure for hollow tapping tool bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214081765U true CN214081765U (en) | 2021-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023096623.3U Active CN214081765U (en) | 2020-12-21 | 2020-12-21 | Automatic switching and fixing structure for hollow tapping tool bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214081765U (en) |
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2020
- 2020-12-21 CN CN202023096623.3U patent/CN214081765U/en active Active
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