CN216911734U - Cylindrical surface hole opening mechanism for circular tube workpiece - Google Patents
Cylindrical surface hole opening mechanism for circular tube workpiece Download PDFInfo
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- CN216911734U CN216911734U CN202123379779.7U CN202123379779U CN216911734U CN 216911734 U CN216911734 U CN 216911734U CN 202123379779 U CN202123379779 U CN 202123379779U CN 216911734 U CN216911734 U CN 216911734U
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Abstract
The cylindrical surface perforating mechanism for the circular tube workpiece is provided with a base, a front baffle plate vertical to the top surface is arranged at the front end, a rear baffle plate vertical to the top surface is arranged at the rear end, and a sliding seat positioned between the front baffle plate and the rear baffle plate is also arranged; the sliding block and the sliding seat form a sliding pair; a plurality of ejector rods parallel to the central shaft are arranged on the front end surface of the sliding block; the die is also provided with an outer die, the outer die is provided with a feed hole coaxially aligned with the central shaft, the rear end surface is also formed with a circular groove coaxially aligned with the feed hole, and the rear end surface is also formed with a plurality of sliding grooves in one-to-one correspondence with the ejector rods along the radial direction of the circular groove; the device is also provided with a plurality of punches which are filled in the sliding grooves in a one-to-one correspondence manner, and one end of each punch is formed into an inclined plane which is just matched with the front end of the ejector rod to form an inclined wedge; the punching die is characterized by also comprising an inner die, wherein die holes which are superposed with the via holes in a one-to-one correspondence manner are formed in the tube wall of the inner die, when the ejector rod is matched with the impact punch through the tapered wedge, the punch head just can punch the die holes from the via holes, and a plurality of hole sites can be punched at the same time by one-step manufacturing process.
Description
Technical Field
The utility model relates to the technical field of hardware processing, in particular to a cylindrical surface hole forming mechanism for a circular tube workpiece.
Background
The cylindrical surface of a circular tube workpiece often needs to be perforated, which has high processing difficulty in the industry. Particularly, as shown in fig. 1, when a plurality of through holes 2 ' need to be formed in the circumferential direction on the cylindrical surface of a circular tube workpiece 1 ', in the face of such a processing requirement, most solutions provided in the prior art adopt a fixture to fix the circular tube workpiece 1 ', and then adopt a punching or drilling device to form the through holes 2 ' on the cylindrical surface of the circular tube workpiece 1 '.
In the above solution, since the punching or drilling device can only work on the cylindrical surface of the circular tube workpiece 1 ' in a single radial direction in each process, the circumferential posture of the circular tube workpiece 1 ' needs to be adjusted in the fixture for multiple times to complete the processing of the through holes 2 ' in sequence according to the design scheme in cooperation with the punching or drilling device.
Obviously, the above solution has low production efficiency, and requires to debug the fixture many times and to perform the hole forming process many times, which makes the process complicated and the precision difficult to control.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a cylindrical surface hole opening mechanism for a circular tube workpiece, and the technical scheme is as follows.
Pipe work piece cylinder trompil mechanism, wherein:
the top surface of the base is provided with a front baffle plate which is vertical to the top surface at the front end, a rear baffle plate which is vertical to the top surface at the rear end, and a sliding seat which is positioned between the front baffle plate and the rear baffle plate;
the sliding block and the sliding seat form a sliding pair along the front and back directions of the base; the sliding block is provided with a central shaft defined along the front-back direction, a plurality of ejector rods parallel to the central shaft are arranged on the front end surface of the sliding block, the ejector rods are rotationally symmetrical relative to the central shaft, the ejector rods are in sliding fit with the front baffle in a penetrating mode, and the front ends of the ejector rods penetrate through the front baffle and are arranged to be inclined planes constructed towards the central shaft;
the rear end face of the outer die is fixedly arranged on the front end face of the front baffle in a surface contact mode, the outer die is provided with a feeding hole coaxially aligned with the central shaft, a circular groove coaxially aligned with the feeding hole is formed in the rear end face of the outer die, a plurality of sliding grooves in one-to-one correspondence with the ejector rods are formed in the rear end face of the outer die along the radial direction of the circular groove, the tail ends of the ejector rods can just enter one ends of the sliding grooves corresponding to the ejector rods, and the other ends of the sliding grooves are respectively crossed along the radial direction of the circular groove;
the punching device is characterized by also comprising a plurality of punches which are filled in the sliding grooves in a one-to-one correspondence manner, the punches are in sliding fit with the sliding grooves along the radial direction of the circular groove, one end of each punch is formed into an inclined plane which is just matched with the front end of the ejector rod to form a wedge, and the other end of each punch is formed into a punch which extends out of the circular groove along the radial direction of the circular groove;
the punching die is characterized by also comprising a check ring, wherein the check ring is filled in the circular groove, and through holes which correspond to the punches one by one are formed in the check ring along the radial direction of the circular groove;
the punch is provided with a plurality of springs, the springs are sleeved on the punch head in a one-to-one correspondence manner, and one end of the punch facing the circular groove is elastically abutted with the outer wall of the retainer ring through the springs;
the inner die is thick-walled tubular and coaxial, the clearance fit is realized in the feeding hole, die holes which are superposed with the via holes in a one-to-one correspondence mode are formed in the tube wall of the inner die, and when the ejector rod is matched with an impact punch through the wedge, the punch head can just punch into the die holes from the via holes.
In the technical scheme, the fit clearance between the inner die and the feed hole is set to be matched with the circular tube workpiece, so that the tube wall of the circular tube workpiece can be just filled between the inner die and the feed hole. When the slide block pushes the ejector rods along the front-back direction of the base, a plurality of punches can be simultaneously driven to punch holes on the circular tube workpiece in a wedge matching mode. When the sliding block retreats along the front-back direction of the base, the cooperation of the ejector rod and the wedge of the punch is released, and the punch is outwards bounced along the radial direction of the circular groove under the action of the spring, so that the punch is demoulded, and a circular pipe workpiece can be replaced immediately.
Compared with the prior art, the utility model has the beneficial effects that:
the cylindrical surface of the circular tube workpiece can do work in a plurality of radial directions in each process, a plurality of hole sites can be punched simultaneously in one process, multiple debugging is not needed, the operation is simple, and the precision is difficult to control.
The present invention will be further described with reference to the drawings and the detailed description.
Drawings
Fig. 1 is a schematic structural view of a circular tube workpiece according to the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a schematic cross-sectional structure of the present invention.
Fig. 4 is a partially enlarged view of a portion a in fig. 3.
Fig. 5 is a schematic diagram of the working principle of the present invention.
Detailed Description
As shown in fig. 2 to 5, the cylindrical surface of the circular tube workpiece is provided with a hole opening mechanism, wherein:
the device is provided with a base 1, wherein the front end of the top surface of the base 1 is provided with a front baffle plate 11 vertical to the top surface, the rear end of the top surface of the base 1 is provided with a rear baffle plate 12 vertical to the top surface, and the top surface of the base 1 is also provided with a sliding seat 13 positioned between the front baffle plate 11 and the rear baffle plate 12;
the sliding block 2 and the sliding seat 13 form a sliding pair along the front and back direction of the base 1; the slide block 2 is provided with a central shaft defined along the front-back direction, a plurality of ejector rods 21 parallel to the central shaft are arranged on the front end surface of the slide block 2, the ejector rods 21 are rotationally symmetrical relative to the central shaft, the ejector rods 21 are in sliding fit with the front baffle plate 11 in a penetrating mode, and the front ends of the ejector rods 21 penetrate through the front baffle plate 11 and are arranged to be inclined surfaces constructed towards the central shaft;
the rear end face of the outer die 3 is fixedly arranged on the front end face of the front baffle plate 11 in a surface contact mode, the outer die 3 is provided with a feeding hole 31 coaxially aligned with the central shaft, the rear end face of the outer die 3 is also provided with a circular groove 32 coaxially aligned with the feeding hole 31, the rear end face of the outer die 3 is also provided with a plurality of sliding grooves 33 one-to-one corresponding to the ejector rods 21 along the radial direction of the circular groove 32, the tail end of each ejector rod 21 can just enter one end of the corresponding sliding groove 33, and the other ends of the sliding grooves 33 are respectively intersected along the radial direction of the circular groove 32;
the punching device is also provided with a plurality of punches 4, the punches 4 are correspondingly filled in the sliding grooves 33 one by one, the punches 4 are in sliding fit with the sliding grooves 33 along the radial direction of the circular groove 32, one end of each punch 4 is formed into an inclined plane which is just matched with the front end of the corresponding ejector rod 21 to form a wedge, and the other end of each punch 4 is formed into a punch 41 which extends towards the inside of the circular groove 32 along the radial direction of the circular groove 32;
the punching die is also provided with a retainer ring 5, the retainer ring 5 is filled in the circular groove 32, and through holes 51 which correspond to the punches 41 one by one are formed in the retainer ring 5 along the radial direction of the circular groove 32;
the punch is characterized by further comprising a plurality of springs 6, the springs 6 are sleeved on the punch 41 in a one-to-one correspondence mode, and one end, facing the circular groove 32, of the punch 4 is elastically abutted to the outer wall of the retainer ring 5 through the springs 6;
the punching die is also provided with an inner die 7, the inner die 7 is in a thick-wall tubular shape and is coaxially in clearance fit with the feeding hole 31, die holes 71 which are correspondingly overlapped with the through holes 51 one by one are formed in the tube wall of the inner die 7, and when the ejector rod 21 impacts the punch 4 through the wedge fit, the punch 41 can just punch into the die holes 71 from the through holes 51.
In the circular tube workpiece cylindrical surface hole opening mechanism in the above embodiment, the fit clearance between the inner die 7 and the feed hole 31 is set to match with the circular tube workpiece 8, so that the tube wall of the circular tube workpiece 8 can be just filled between the inner die 7 and the feed hole 31. When the slide block 2 pushes the ejector rods 21 in the front-back direction of the base 1, the plurality of punches 4 can be driven simultaneously to punch the circular tube workpiece 8 in a wedge matching manner. When the slide block 2 retreats along the front-back direction of the base 1, the cooperation of the ejector rod 21 and the wedge of the punch 4 is released, the punch 4 is outwards bounced along the radial direction of the circular groove 32 under the action of the spring 6, so that the punch 41 is demoulded, and the circular pipe workpiece 8 can be replaced immediately.
Obviously, each process of the circular tube workpiece cylindrical surface hole opening mechanism in the above embodiment can apply work on the cylindrical surface of the circular tube workpiece 8 in multiple radial directions, and multiple hole positions can be punched simultaneously by one process without multiple times of debugging, so that the operation is simple, and the precision is difficult to control.
In a preferred embodiment, the rear end of the slide 2 is formed with a bevel at the upper edge to facilitate driving the slide 2 in a wedge-fit manner vertically above using external pressure equipment.
Wherein, the front end face of the back baffle 12 is formed with a guide groove 121 opened vertically so as to construct a guide in the vertical direction.
In a preferred embodiment, the rear end of the slider 2 is connected to a spindle 21 disposed along the central axis, and the backplate 12 is provided with a shaft hole 122 for the spindle 20 to pass through and form an axial sliding fit. The axial drive of the spindle 20 by means of an external pressure device likewise enables the slide 2 to be driven.
In the preferred embodiment, the rear end of the slider 2 is a square column 22 disposed along the front-rear direction of the base 1, the front end of the slider 2 is a plate-like structure 23 that is wider than the front end periphery of the square column 22, and the lift pin 21 is disposed on the front end surface of the plate-like structure 23.
Wherein, the upper end of the slide base 13 is provided with a limit groove 131 along the front-back direction of the base 1, and the square column 22 at the rear end of the slide block 2 is embedded in the limit groove 131 and is in sliding fit with the limit groove 131 along the front-back direction of the base 1.
Wherein, a guide rod 10 arranged along the front-back direction of the base 1 is erected between the front baffle 11 and the rear baffle 12, and a plate-shaped structure 23 at the front end of the sliding block 2 is penetrated on the guide rod 10 to form sliding fit.
In the preferred embodiment, the lift pins 21 are equiangularly spaced about the central axis.
It will be clear to a person skilled in the art that the scope of protection of the present invention is not limited to details of the foregoing illustrative embodiments, and that all changes which come within the meaning and range of equivalency of the claims are intended to be embraced therein by the appended claims without departing from the spirit or essential characteristics thereof.
Claims (8)
1. Pipe work piece cylinder trompil mechanism, its characterized in that:
the top surface of the base is provided with a front baffle plate which is vertical to the top surface at the front end, a rear baffle plate which is vertical to the top surface at the rear end, and a sliding seat which is positioned between the front baffle plate and the rear baffle plate;
the sliding block and the sliding seat form a sliding pair along the front and back directions of the base; the sliding block is provided with a central shaft defined along the front-back direction, a plurality of ejector rods parallel to the central shaft are arranged on the front end surface of the sliding block, the ejector rods are rotationally symmetrical relative to the central shaft, the ejector rods are in sliding fit with the front baffle in a penetrating mode, and the front ends of the ejector rods penetrate through the front baffle and are arranged to be inclined planes constructed towards the central shaft;
the rear end face of the outer die is fixedly arranged on the front end face of the front baffle in a surface contact mode, the outer die is provided with a feeding hole coaxially aligned with the central shaft, a circular groove coaxially aligned with the feeding hole is formed in the rear end face of the outer die, a plurality of sliding grooves in one-to-one correspondence with the ejector rods are formed in the rear end face of the outer die along the radial direction of the circular groove, the tail ends of the ejector rods can just enter one ends of the sliding grooves corresponding to the ejector rods, and the other ends of the sliding grooves are respectively crossed along the radial direction of the circular groove;
the punching device is characterized by also comprising a plurality of punches which are filled in the sliding grooves in a one-to-one correspondence manner, the punches are in sliding fit with the sliding grooves along the radial direction of the circular groove, one end of each punch is formed into an inclined plane which is just matched with the front end of the ejector rod to form a wedge, and the other end of each punch is formed into a punch which extends out of the circular groove along the radial direction of the circular groove;
the punching die is characterized by also comprising a check ring, wherein the check ring is filled in the circular groove, and through holes which correspond to the punches one by one are formed in the check ring along the radial direction of the circular groove;
the punch is provided with a plurality of springs, the springs are sleeved on the punch head in a one-to-one correspondence manner, and one end of the punch facing the circular groove is elastically abutted with the outer wall of the retainer ring through the springs;
the inner die is thick-walled tubular and coaxial, the clearance fit is realized in the feeding hole, die holes which are superposed with the via holes in a one-to-one correspondence mode are formed in the tube wall of the inner die, and when the ejector rod is matched with an impact punch through the wedge, the punch head can just punch into the die holes from the via holes.
2. The cylindrical surface perforating mechanism for round pipe workpieces of claim 1, wherein: the rear end of the sliding block is formed into an inclined plane on the upper edge.
3. The cylindrical surface perforating mechanism for round pipe workpieces of claim 2, wherein: the front end surface of the rear baffle is formed with a guide groove which is vertically arranged.
4. The cylindrical surface perforating mechanism for round pipe workpieces of claim 1, wherein: the rear end of the sliding block is connected with a main shaft arranged along the central shaft, and the rear baffle plate is provided with a shaft hole for the main shaft to pass through and form axial sliding fit.
5. The cylindrical surface perforating mechanism for round pipe workpieces of claim 1, wherein: the rear end of the sliding block is a square column body arranged along the front-back direction of the base, the front end of the sliding block is a plate-shaped structure which is wider than the periphery of the front end of the square column body, and the ejector rod is arranged on the front end face of the plate-shaped structure.
6. The cylindrical surface perforating mechanism for round pipe workpieces as recited in claim 5, wherein: the upper end of the sliding seat is provided with a limiting groove along the front-back direction of the base, and the square column body at the rear end of the sliding block is embedded in the limiting groove and is in sliding fit with the limiting groove along the front-back direction of the base.
7. The cylindrical surface perforating mechanism for round pipe workpieces as recited in claim 5, wherein: guide rods arranged along the front and back directions of the base are erected between the front baffle and the back baffle, and the plate-shaped structure at the front end of the sliding block is connected on the guide rods in a penetrating manner to form sliding fit.
8. The cylindrical surface perforating mechanism for round pipe workpieces of claim 1, wherein: the push rods are distributed in an equal angular distance relative to the central axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123379779.7U CN216911734U (en) | 2021-12-29 | 2021-12-29 | Cylindrical surface hole opening mechanism for circular tube workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123379779.7U CN216911734U (en) | 2021-12-29 | 2021-12-29 | Cylindrical surface hole opening mechanism for circular tube workpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216911734U true CN216911734U (en) | 2022-07-08 |
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ID=82255241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123379779.7U Active CN216911734U (en) | 2021-12-29 | 2021-12-29 | Cylindrical surface hole opening mechanism for circular tube workpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216911734U (en) |
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2021
- 2021-12-29 CN CN202123379779.7U patent/CN216911734U/en active Active
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